diff options
Diffstat (limited to 'mobile/gst/matroska')
22 files changed, 0 insertions, 19901 deletions
diff --git a/mobile/gst/matroska/Makefile.am b/mobile/gst/matroska/Makefile.am deleted file mode 100644 index 7d56973..0000000 --- a/mobile/gst/matroska/Makefile.am +++ /dev/null @@ -1,58 +0,0 @@ -plugin_LTLIBRARIES = libgstmatroska.la - -libgstmatroska_la_SOURCES = \ - ebml-read.c \ - ebml-write.c \ - matroska.c \ - matroska-demux.c \ - matroska-parse.c \ - matroska-ids.c \ - matroska-mux.c \ - matroska-read-common.c \ - webm-mux.c \ - lzo.c - -noinst_HEADERS = \ - ebml-ids.h \ - ebml-read.h \ - ebml-write.h \ - matroska-demux.h \ - matroska-parse.h \ - matroska-ids.h \ - matroska-mux.h \ - matroska-read-common.h \ - webm-mux.h \ - lzo.h - -libgstmatroska_la_CFLAGS = \ - $(GST_PLUGINS_BASE_CFLAGS) \ - $(GST_BASE_CFLAGS) \ - $(GST_CFLAGS) -libgstmatroska_la_LIBADD = \ - $(GST_PLUGINS_BASE_LIBS) \ - -lgstriff-@GST_MAJORMINOR@ \ - -lgstaudio-@GST_MAJORMINOR@ \ - -lgsttag-@GST_MAJORMINOR@ \ - -lgstpbutils-@GST_MAJORMINOR@ \ - $(GST_BASE_LIBS) \ - $(GST_LIBS) \ - $(ZLIB_LIBS) \ - 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-:PASSTHROUGH LOCAL_ARM_MODE:=arm \ - LOCAL_MODULE_PATH:='$$(TARGET_OUT)/lib/gstreamer-0.10' \ - > $@ - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/mobile/gst/matroska/ebml-ids.h b/mobile/gst/matroska/ebml-ids.h deleted file mode 100644 index 14edf74..0000000 --- a/mobile/gst/matroska/ebml-ids.h +++ /dev/null @@ -1,54 +0,0 @@ -/* GStreamer EBML I/O - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * - * ebml-ids.h: definition of EBML data IDs - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_EBML_IDS_H__ -#define __GST_EBML_IDS_H__ - -G_BEGIN_DECLS - -/* EBML version supported */ -#define GST_EBML_VERSION 1 - -/* Unknown size (all bits set to 1) */ -#define GST_EBML_SIZE_UNKNOWN G_GINT64_CONSTANT(0x00ffffffffffffff) - -/* top-level master-IDs */ -#define GST_EBML_ID_HEADER 0x1A45DFA3 - -/* IDs in the HEADER master */ -#define GST_EBML_ID_EBMLVERSION 0x4286 -#define GST_EBML_ID_EBMLREADVERSION 0x42F7 -#define GST_EBML_ID_EBMLMAXIDLENGTH 0x42F2 -#define GST_EBML_ID_EBMLMAXSIZELENGTH 0x42F3 -#define GST_EBML_ID_DOCTYPE 0x4282 -#define GST_EBML_ID_DOCTYPEVERSION 0x4287 -#define GST_EBML_ID_DOCTYPEREADVERSION 0x4285 - -/* general EBML types */ -#define GST_EBML_ID_VOID 0xEC -#define GST_EBML_ID_CRC32 0xBF - -/* EbmlDate offset from the unix epoch in seconds, 2001/01/01 00:00:00 UTC */ -#define GST_EBML_DATE_OFFSET 978307200 - -G_END_DECLS - -#endif /* __GST_EBML_IDS_H__ */ diff --git a/mobile/gst/matroska/ebml-read.c b/mobile/gst/matroska/ebml-read.c deleted file mode 100644 index f6bf134..0000000 --- a/mobile/gst/matroska/ebml-read.c +++ /dev/null @@ -1,671 +0,0 @@ -/* GStreamer EBML I/O - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * - * ebml-read.c: read EBML data from file/stream - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <string.h> - -#include "ebml-read.h" -#include "ebml-ids.h" - -#include <math.h> - -/* NAN is supposed to be in math.h, Microsoft defines it in xmath.h */ -#ifdef _MSC_VER -#include <xmath.h> -#endif - -/* If everything goes wrong try 0.0/0.0 which should be NAN */ -#ifndef NAN -#define NAN (0.0 / 0.0) -#endif - -GST_DEBUG_CATEGORY (ebmlread_debug); -#define GST_CAT_DEFAULT ebmlread_debug - -/* Peeks following element id and element length in datastream provided - * by @peek with @ctx as user data. - * Returns GST_FLOW_UNEXPECTED if not enough data to read id and length. - * Otherwise, @needed provides the prefix length (id + length), and - * @length provides element length. - * - * @object and @offset are provided for informative messaging/debug purposes. - */ -GstFlowReturn -gst_ebml_peek_id_length (guint32 * _id, guint64 * _length, guint * _needed, - GstPeekData peek, gpointer * ctx, GstElement * el, guint64 offset) -{ - guint needed; - const guint8 *buf; - gint len_mask = 0x80, read = 1, n = 1, num_ffs = 0; - guint64 total; - guint8 b; - GstFlowReturn ret; - - g_return_val_if_fail (_id != NULL, GST_FLOW_ERROR); - g_return_val_if_fail (_length != NULL, GST_FLOW_ERROR); - g_return_val_if_fail (_needed != NULL, GST_FLOW_ERROR); - - /* well ... */ - *_id = (guint32) GST_EBML_SIZE_UNKNOWN; - *_length = GST_EBML_SIZE_UNKNOWN; - - /* read element id */ - needed = 2; - ret = peek (ctx, needed, &buf); - if (ret != GST_FLOW_OK) - goto peek_error; - b = GST_READ_UINT8 (buf); - total = (guint64) b; - while (read <= 4 && !(total & len_mask)) { - read++; - len_mask >>= 1; - } - if (G_UNLIKELY (read > 4)) - goto invalid_id; - - /* need id and at least something for subsequent length */ - needed = read + 1; - ret = peek (ctx, needed, &buf); - if (ret != GST_FLOW_OK) - goto peek_error; - while (n < read) { - b = GST_READ_UINT8 (buf + n); - total = (total << 8) | b; - ++n; - } - *_id = (guint32) total; - - /* read element length */ - b = GST_READ_UINT8 (buf + n); - total = (guint64) b; - len_mask = 0x80; - read = 1; - while (read <= 8 && !(total & len_mask)) { - read++; - len_mask >>= 1; - } - if (G_UNLIKELY (read > 8)) - goto invalid_length; - if ((total &= (len_mask - 1)) == len_mask - 1) - num_ffs++; - - needed += read - 1; - ret = peek (ctx, needed, &buf); - if (ret != GST_FLOW_OK) - goto peek_error; - buf += (needed - read); - n = 1; - while (n < read) { - guint8 b = GST_READ_UINT8 (buf + n); - - if (G_UNLIKELY (b == 0xff)) - num_ffs++; - total = (total << 8) | b; - ++n; - } - - if (G_UNLIKELY (read == num_ffs)) - *_length = G_MAXUINT64; - else - *_length = total; - - *_needed = needed; - - return GST_FLOW_OK; - - /* ERRORS */ -peek_error: - { - GST_WARNING_OBJECT (el, "peek failed, ret = %d", ret); - *_needed = needed; - return ret; - } -invalid_id: - { - GST_ERROR_OBJECT (el, - "Invalid EBML ID size tag (0x%x) at position %" G_GUINT64_FORMAT " (0x%" - G_GINT64_MODIFIER "x)", (guint) b, offset, offset); - return GST_FLOW_ERROR; - } -invalid_length: - { - GST_ERROR_OBJECT (el, - "Invalid EBML length size tag (0x%x) at position %" G_GUINT64_FORMAT - " (0x%" G_GINT64_MODIFIER "x)", (guint) b, offset, offset); - return GST_FLOW_ERROR; - } -} - -/* setup for parsing @buf at position @offset on behalf of @el. - * Takes ownership of @buf. */ -void -gst_ebml_read_init (GstEbmlRead * ebml, GstElement * el, GstBuffer * buf, - guint64 offset) -{ - GstEbmlMaster m; - - g_return_if_fail (el); - g_return_if_fail (buf); - - ebml->el = el; - ebml->offset = offset; - ebml->buf = buf; - ebml->readers = g_array_sized_new (FALSE, FALSE, sizeof (GstEbmlMaster), 10); - m.offset = ebml->offset; - gst_byte_reader_init (&m.br, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf)); - g_array_append_val (ebml->readers, m); -} - -void -gst_ebml_read_clear (GstEbmlRead * ebml) -{ - if (ebml->readers) - g_array_free (ebml->readers, TRUE); - ebml->readers = NULL; - if (ebml->buf) - gst_buffer_unref (ebml->buf); - ebml->buf = NULL; - ebml->el = NULL; -} - -static GstFlowReturn -gst_ebml_read_peek (GstByteReader * br, guint peek, const guint8 ** data) -{ - if (G_LIKELY (gst_byte_reader_peek_data (br, peek, data))) - return GST_FLOW_OK; - else - return GST_FLOW_UNEXPECTED; -} - -static GstFlowReturn -gst_ebml_peek_id_full (GstEbmlRead * ebml, guint32 * id, guint64 * length, - guint * prefix) -{ - GstFlowReturn ret; - - ret = gst_ebml_peek_id_length (id, length, prefix, - (GstPeekData) gst_ebml_read_peek, (gpointer) gst_ebml_read_br (ebml), - ebml->el, gst_ebml_read_get_pos (ebml)); - if (ret != GST_FLOW_OK) - return ret; - - GST_LOG_OBJECT (ebml->el, "id 0x%x at offset 0x%" G_GINT64_MODIFIER "x" - " of length %" G_GUINT64_FORMAT ", prefix %d", *id, - gst_ebml_read_get_pos (ebml), *length, *prefix); - -#ifndef GST_DISABLE_GST_DEBUG - { - const guint8 *data = NULL; - GstByteReader *br = gst_ebml_read_br (ebml); - guint size = gst_byte_reader_get_remaining (br); - - gst_byte_reader_peek_data (br, size, &data); - - GST_LOG_OBJECT (ebml->el, "current br %p; remaining %d", br, size); - if (data) - GST_MEMDUMP_OBJECT (ebml->el, "element", data, MIN (size, *length)); - } -#endif - - return ret; -} - -GstFlowReturn -gst_ebml_peek_id (GstEbmlRead * ebml, guint32 * id) -{ - guint64 length; - guint needed; - - return gst_ebml_peek_id_full (ebml, id, &length, &needed); -} - -/* - * Read the next element, the contents are supposed to be sub-elements which - * can be read separately. A new bytereader is setup for doing so. - */ -GstFlowReturn -gst_ebml_read_master (GstEbmlRead * ebml, guint32 * id) -{ - guint64 length; - guint prefix; - const guint8 *data = NULL; - GstFlowReturn ret; - GstEbmlMaster m; - - ret = gst_ebml_peek_id_full (ebml, id, &length, &prefix); - if (ret != GST_FLOW_OK) - return ret; - - /* we just at least peeked the id */ - if (!gst_byte_reader_skip (gst_ebml_read_br (ebml), prefix)) - return GST_FLOW_ERROR; /* FIXME: do proper error handling */ - - m.offset = gst_ebml_read_get_pos (ebml); - if (!gst_byte_reader_get_data (gst_ebml_read_br (ebml), length, &data)) - return GST_FLOW_PARSE; - - GST_LOG_OBJECT (ebml->el, "pushing level %d at offset %" G_GUINT64_FORMAT, - ebml->readers->len, m.offset); - gst_byte_reader_init (&m.br, data, length); - g_array_append_val (ebml->readers, m); - - return GST_FLOW_OK; -} - -/* explicitly pop a bytereader from stack. Usually invoked automagically. */ -GstFlowReturn -gst_ebml_read_pop_master (GstEbmlRead * ebml) -{ - g_return_val_if_fail (ebml->readers, GST_FLOW_ERROR); - - /* never remove initial bytereader */ - if (ebml->readers->len > 1) { - GST_LOG_OBJECT (ebml->el, "popping level %d", ebml->readers->len - 1); - g_array_remove_index (ebml->readers, ebml->readers->len - 1); - } - - return GST_FLOW_OK; -} - -/* - * Skip the next element. - */ - -GstFlowReturn -gst_ebml_read_skip (GstEbmlRead * ebml) -{ - guint64 length; - guint32 id; - guint prefix; - GstFlowReturn ret; - - ret = gst_ebml_peek_id_full (ebml, &id, &length, &prefix); - if (ret != GST_FLOW_OK) - return ret; - - if (!gst_byte_reader_skip (gst_ebml_read_br (ebml), length + prefix)) - return GST_FLOW_PARSE; - - return ret; -} - -/* - * Read the next element as a GstBuffer (binary). - */ - -GstFlowReturn -gst_ebml_read_buffer (GstEbmlRead * ebml, guint32 * id, GstBuffer ** buf) -{ - guint64 length; - guint prefix; - GstFlowReturn ret; - - ret = gst_ebml_peek_id_full (ebml, id, &length, &prefix); - if (ret != GST_FLOW_OK) - return ret; - - /* we just at least peeked the id */ - if (!gst_byte_reader_skip (gst_ebml_read_br (ebml), prefix)) - return GST_FLOW_ERROR; /* FIXME: do proper error handling */ - - if (G_LIKELY (length > 0)) { - guint offset; - - offset = gst_ebml_read_get_pos (ebml) - ebml->offset; - if (G_LIKELY (gst_byte_reader_skip (gst_ebml_read_br (ebml), length))) { - *buf = gst_buffer_create_sub (ebml->buf, offset, length); - } else { - *buf = NULL; - return GST_FLOW_PARSE; - } - } else { - *buf = gst_buffer_new (); - } - - return ret; -} - -/* - * Read the next element, return a pointer to it and its size. - */ - -static GstFlowReturn -gst_ebml_read_bytes (GstEbmlRead * ebml, guint32 * id, const guint8 ** data, - guint * size) -{ - guint64 length; - guint prefix; - GstFlowReturn ret; - - *size = 0; - - ret = gst_ebml_peek_id_full (ebml, id, &length, &prefix); - if (ret != GST_FLOW_OK) - return ret; - - /* we just at least peeked the id */ - if (!gst_byte_reader_skip (gst_ebml_read_br (ebml), prefix)) - return GST_FLOW_ERROR; /* FIXME: do proper error handling */ - - *data = NULL; - if (G_LIKELY (length >= 0)) { - if (!gst_byte_reader_get_data (gst_ebml_read_br (ebml), length, data)) - return GST_FLOW_PARSE; - } - - *size = length; - - return ret; -} - -/* - * Read the next element as an unsigned int. - */ - -GstFlowReturn -gst_ebml_read_uint (GstEbmlRead * ebml, guint32 * id, guint64 * num) -{ - const guint8 *data; - guint size; - GstFlowReturn ret; - - ret = gst_ebml_read_bytes (ebml, id, &data, &size); - if (ret != GST_FLOW_OK) - return ret; - - if (size > 8) { - GST_ERROR_OBJECT (ebml->el, - "Invalid integer element size %d at position %" G_GUINT64_FORMAT " (0x%" - G_GINT64_MODIFIER "x)", size, gst_ebml_read_get_pos (ebml) - size, - gst_ebml_read_get_pos (ebml) - size); - return GST_FLOW_ERROR; - } - - if (size == 0) { - *num = 0; - return ret; - } - - *num = 0; - while (size > 0) { - *num = (*num << 8) | *data; - size--; - data++; - } - - return ret; -} - -/* - * Read the next element as a signed int. - */ - -GstFlowReturn -gst_ebml_read_sint (GstEbmlRead * ebml, guint32 * id, gint64 * num) -{ - const guint8 *data; - guint size; - gboolean negative = 0; - GstFlowReturn ret; - - ret = gst_ebml_read_bytes (ebml, id, &data, &size); - if (ret != GST_FLOW_OK) - return ret; - - if (size > 8) { - GST_ERROR_OBJECT (ebml->el, - "Invalid integer element size %d at position %" G_GUINT64_FORMAT " (0x%" - G_GINT64_MODIFIER "x)", size, gst_ebml_read_get_pos (ebml) - size, - gst_ebml_read_get_pos (ebml) - size); - return GST_FLOW_ERROR; - } - - if (size == 0) { - *num = 0; - return ret; - } - - *num = 0; - if (*data & 0x80) { - negative = 1; - *num = *data & ~0x80; - size--; - data++; - } - - while (size > 0) { - *num = (*num << 8) | *data; - size--; - data++; - } - - /* make signed */ - if (negative) { - *num = 0 - *num; - } - - return ret; -} - -/* Convert 80 bit extended precision float in big endian format to double. - * Code taken from libavutil/intfloat_readwrite.c from ffmpeg, - * licensed under LGPL */ - -struct _ext_float -{ - guint8 exponent[2]; - guint8 mantissa[8]; -}; - -static gdouble -_ext2dbl (const guint8 * data) -{ - struct _ext_float ext; - guint64 m = 0; - gint e, i; - - memcpy (&ext.exponent, data, 2); - memcpy (&ext.mantissa, data + 2, 8); - - for (i = 0; i < 8; i++) - m = (m << 8) + ext.mantissa[i]; - e = (((gint) ext.exponent[0] & 0x7f) << 8) | ext.exponent[1]; - if (e == 0x7fff && m) - return NAN; - e -= 16383 + 63; /* In IEEE 80 bits, the whole (i.e. 1.xxxx) - * mantissa bit is written as opposed to the - * single and double precision formats */ - if (ext.exponent[0] & 0x80) - m = -m; - return ldexp (m, e); -} - -/* - * Read the next element as a float. - */ - -GstFlowReturn -gst_ebml_read_float (GstEbmlRead * ebml, guint32 * id, gdouble * num) -{ - const guint8 *data; - guint size; - GstFlowReturn ret; - - ret = gst_ebml_read_bytes (ebml, id, &data, &size); - if (ret != GST_FLOW_OK) - return ret; - - if (size != 0 && size != 4 && size != 8 && size != 10) { - GST_ERROR_OBJECT (ebml->el, - "Invalid float element size %d at position %" G_GUINT64_FORMAT " (0x%" - G_GINT64_MODIFIER "x)", size, gst_ebml_read_get_pos (ebml) - size, - gst_ebml_read_get_pos (ebml) - size); - return GST_FLOW_ERROR; - } - - if (size == 4) { - gfloat f; - - memcpy (&f, data, 4); - f = GFLOAT_FROM_BE (f); - - *num = f; - } else if (size == 8) { - gdouble d; - - memcpy (&d, data, 8); - d = GDOUBLE_FROM_BE (d); - - *num = d; - } else if (size == 10) { - *num = _ext2dbl (data); - } else { - /* size == 0 means a value of 0.0 */ - *num = 0.0; - } - - return ret; -} - -/* - * Read the next element as a C string. - */ - -static GstFlowReturn -gst_ebml_read_string (GstEbmlRead * ebml, guint32 * id, gchar ** str) -{ - const guint8 *data; - guint size; - GstFlowReturn ret; - - ret = gst_ebml_read_bytes (ebml, id, &data, &size); - if (ret != GST_FLOW_OK) - return ret; - - *str = g_malloc (size + 1); - memcpy (*str, data, size); - (*str)[size] = '\0'; - - return ret; -} - -/* - * Read the next element as an ASCII string. - */ - -GstFlowReturn -gst_ebml_read_ascii (GstEbmlRead * ebml, guint32 * id, gchar ** str_out) -{ - GstFlowReturn ret; - gchar *str; - gchar *iter; - -#ifndef GST_DISABLE_GST_DEBUG - guint64 oldoff = ebml->offset; -#endif - - ret = gst_ebml_read_string (ebml, id, &str); - if (ret != GST_FLOW_OK) - return ret; - - for (iter = str; *iter != '\0'; iter++) { - if (G_UNLIKELY (*iter & 0x80)) { - GST_ERROR_OBJECT (ebml, - "Invalid ASCII string at offset %" G_GUINT64_FORMAT, oldoff); - g_free (str); - return GST_FLOW_ERROR; - } - } - - *str_out = str; - return ret; -} - -/* - * Read the next element as a UTF-8 string. - */ - -GstFlowReturn -gst_ebml_read_utf8 (GstEbmlRead * ebml, guint32 * id, gchar ** str) -{ - GstFlowReturn ret; - -#ifndef GST_DISABLE_GST_DEBUG - guint64 oldoff = gst_ebml_read_get_pos (ebml); -#endif - - ret = gst_ebml_read_string (ebml, id, str); - if (ret != GST_FLOW_OK) - return ret; - - if (str != NULL && *str != NULL && **str != '\0' && - !g_utf8_validate (*str, -1, NULL)) { - GST_WARNING_OBJECT (ebml->el, - "Invalid UTF-8 string at offset %" G_GUINT64_FORMAT, oldoff); - } - - return ret; -} - -/* - * Read the next element as a date. - * Returns the seconds since the unix epoch. - */ - -GstFlowReturn -gst_ebml_read_date (GstEbmlRead * ebml, guint32 * id, gint64 * date) -{ - gint64 ebml_date; - GstFlowReturn ret; - - ret = gst_ebml_read_sint (ebml, id, &ebml_date); - if (ret != GST_FLOW_OK) - return ret; - - *date = (ebml_date / GST_SECOND) + GST_EBML_DATE_OFFSET; - - return ret; -} - -/* - * Read the next element as binary data. - */ - -GstFlowReturn -gst_ebml_read_binary (GstEbmlRead * ebml, - guint32 * id, guint8 ** binary, guint64 * length) -{ - const guint8 *data; - guint size; - GstFlowReturn ret; - - ret = gst_ebml_read_bytes (ebml, id, &data, &size); - if (ret != GST_FLOW_OK) - return ret; - - *length = size; - *binary = g_memdup (data, size); - - return GST_FLOW_OK; -} diff --git a/mobile/gst/matroska/ebml-read.h b/mobile/gst/matroska/ebml-read.h deleted file mode 100644 index 9db38f5..0000000 --- a/mobile/gst/matroska/ebml-read.h +++ /dev/null @@ -1,170 +0,0 @@ -/* GStreamer EBML I/O - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * - * ebml-read.c: read EBML data from file/stream - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_EBML_READ_H__ -#define __GST_EBML_READ_H__ - -#include <gst/gst.h> -#include <gst/base/gstbytereader.h> - -G_BEGIN_DECLS - -#define GST_TYPE_EBML_READ \ - (gst_ebml_read_get_type ()) -#define GST_EBML_READ(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_EBML_READ, GstEbmlRead)) -#define GST_EBML_READ_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_EBML_READ, GstEbmlReadClass)) -#define GST_IS_EBML_READ(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_EBML_READ)) -#define GST_IS_EBML_READ_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_EBML_READ)) -#define GST_EBML_READ_GET_CLASS(obj) \ - (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_EBML_READ, GstEbmlReadClass)) - -GST_DEBUG_CATEGORY_EXTERN (ebmlread_debug); - -/* custom flow return code */ -#define GST_FLOW_PARSE GST_FLOW_CUSTOM_ERROR - -typedef struct _GstEbmlMaster { - guint64 offset; - GstByteReader br; -} GstEbmlMaster; - -typedef struct _GstEbmlRead { - GstElement *el; - - GstBuffer *buf; - guint64 offset; - - GArray *readers; -} GstEbmlRead; - -typedef GstFlowReturn (*GstPeekData) (gpointer * context, guint peek, const guint8 ** data); - -/* returns UNEXPECTED if not enough data */ -GstFlowReturn gst_ebml_peek_id_length (guint32 * _id, guint64 * _length, - guint * _needed, - GstPeekData peek, gpointer * ctx, - GstElement * el, guint64 offset); - -void gst_ebml_read_init (GstEbmlRead * ebml, - GstElement * el, GstBuffer * buf, - guint64 offset); - -void gst_ebml_read_clear (GstEbmlRead * ebml); - -GstFlowReturn gst_ebml_peek_id (GstEbmlRead * ebml, guint32 * id); - -/* return _PARSE if not enough data to read what is needed, _ERROR or _OK */ -GstFlowReturn gst_ebml_read_skip (GstEbmlRead *ebml); - -GstFlowReturn gst_ebml_read_buffer (GstEbmlRead *ebml, - guint32 *id, - GstBuffer **buf); - -GstFlowReturn gst_ebml_read_uint (GstEbmlRead *ebml, - guint32 *id, - guint64 *num); - -GstFlowReturn gst_ebml_read_sint (GstEbmlRead *ebml, - guint32 *id, - gint64 *num); - -GstFlowReturn gst_ebml_read_float (GstEbmlRead *ebml, - guint32 *id, - gdouble *num); - -GstFlowReturn gst_ebml_read_ascii (GstEbmlRead *ebml, - guint32 *id, - gchar **str); - -GstFlowReturn gst_ebml_read_utf8 (GstEbmlRead *ebml, - guint32 *id, - gchar **str); - -GstFlowReturn gst_ebml_read_date (GstEbmlRead *ebml, - guint32 *id, - gint64 *date); - -GstFlowReturn gst_ebml_read_master (GstEbmlRead *ebml, - guint32 *id); - -GstFlowReturn gst_ebml_read_pop_master (GstEbmlRead *ebml); - -GstFlowReturn gst_ebml_read_binary (GstEbmlRead *ebml, - guint32 *id, - guint8 **binary, - guint64 *length); - -GstFlowReturn gst_ebml_read_header (GstEbmlRead *read, - gchar **doctype, - guint *version); - -/* Returns current (absolute) position of Ebml parser, - * i.e. taking into account offset provided at init */ -static inline guint64 -gst_ebml_read_get_pos (GstEbmlRead * ebml) -{ - GstEbmlMaster *m; - - g_return_val_if_fail (ebml->readers, 0); - g_return_val_if_fail (ebml->readers->len, 0); - - m = &(g_array_index (ebml->readers, GstEbmlMaster, ebml->readers->len - 1)); - return m->offset + gst_byte_reader_get_pos (&m->br); -} - -/* Returns starting offset of Ebml parser */ -static inline guint64 -gst_ebml_read_get_offset (GstEbmlRead * ebml) -{ - return ebml->offset; -} - -static inline GstByteReader * -gst_ebml_read_br (GstEbmlRead * ebml) -{ - g_return_val_if_fail (ebml->readers, NULL); - g_return_val_if_fail (ebml->readers->len, NULL); - - return &(g_array_index (ebml->readers, - GstEbmlMaster, ebml->readers->len - 1).br); -} - -static inline gboolean -gst_ebml_read_has_remaining (GstEbmlRead * ebml, guint64 bytes_needed, - gboolean auto_pop) -{ - gboolean res; - - res = (gst_byte_reader_get_remaining (gst_ebml_read_br (ebml)) >= bytes_needed); - if (G_LIKELY (!res && auto_pop)) { - gst_ebml_read_pop_master (ebml); - } - - return G_LIKELY (res); -} - -G_END_DECLS - -#endif /* __GST_EBML_READ_H__ */ diff --git a/mobile/gst/matroska/ebml-write.c b/mobile/gst/matroska/ebml-write.c deleted file mode 100644 index 06f3568..0000000 --- a/mobile/gst/matroska/ebml-write.c +++ /dev/null @@ -1,882 +0,0 @@ -/* GStreamer EBML I/O - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2005 Michal Benes <michal.benes@xeris.cz> - * - * ebml-write.c: write EBML data to file/stream - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <string.h> - -#include "ebml-write.h" -#include "ebml-ids.h" - - -GST_DEBUG_CATEGORY_STATIC (gst_ebml_write_debug); -#define GST_CAT_DEFAULT gst_ebml_write_debug - -#define _do_init(thing) \ - GST_DEBUG_CATEGORY_INIT (gst_ebml_write_debug, "ebmlwrite", 0, "Write EBML structured data") -GST_BOILERPLATE_FULL (GstEbmlWrite, gst_ebml_write, GstObject, GST_TYPE_OBJECT, - _do_init); - -static void gst_ebml_write_finalize (GObject * object); - -static void -gst_ebml_write_base_init (gpointer g_class) -{ -} - -static void -gst_ebml_write_class_init (GstEbmlWriteClass * klass) -{ - GObjectClass *object = G_OBJECT_CLASS (klass); - - object->finalize = gst_ebml_write_finalize; -} - -static void -gst_ebml_write_init (GstEbmlWrite * ebml, GstEbmlWriteClass * klass) -{ - ebml->srcpad = NULL; - ebml->pos = 0; - ebml->last_pos = G_MAXUINT64; /* force newsegment event */ - - ebml->cache = NULL; - ebml->streamheader = NULL; - ebml->streamheader_pos = 0; - ebml->writing_streamheader = FALSE; - ebml->caps = NULL; -} - -static void -gst_ebml_write_finalize (GObject * object) -{ - GstEbmlWrite *ebml = GST_EBML_WRITE (object); - - gst_object_unref (ebml->srcpad); - - if (ebml->cache) { - gst_byte_writer_free (ebml->cache); - ebml->cache = NULL; - } - - if (ebml->streamheader) { - gst_byte_writer_free (ebml->streamheader); - ebml->streamheader = NULL; - } - - if (ebml->caps) { - gst_caps_unref (ebml->caps); - ebml->caps = NULL; - } - - GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object)); -} - - -/** - * gst_ebml_write_new: - * @srcpad: Source pad to which the output will be pushed. - * - * Creates a new #GstEbmlWrite. - * - * Returns: a new #GstEbmlWrite - */ -GstEbmlWrite * -gst_ebml_write_new (GstPad * srcpad) -{ - GstEbmlWrite *ebml = - GST_EBML_WRITE (g_object_new (GST_TYPE_EBML_WRITE, NULL)); - - ebml->srcpad = gst_object_ref (srcpad); - ebml->timestamp = GST_CLOCK_TIME_NONE; - - gst_ebml_write_reset (ebml); - - return ebml; -} - - -/** - * gst_ebml_write_reset: - * @ebml: a #GstEbmlWrite. - * - * Reset internal state of #GstEbmlWrite. - */ -void -gst_ebml_write_reset (GstEbmlWrite * ebml) -{ - ebml->pos = 0; - ebml->last_pos = G_MAXUINT64; /* force newsegment event */ - - if (ebml->cache) { - gst_byte_writer_free (ebml->cache); - ebml->cache = NULL; - } - - if (ebml->caps) { - gst_caps_unref (ebml->caps); - ebml->caps = NULL; - } - - ebml->last_write_result = GST_FLOW_OK; - ebml->timestamp = GST_CLOCK_TIME_NONE; -} - - -/** - * gst_ebml_last_write_result: - * @ebml: a #GstEbmlWrite. - * - * Returns: GST_FLOW_OK if there was not write error since the last call of - * gst_ebml_last_write_result or code of the error. - */ -GstFlowReturn -gst_ebml_last_write_result (GstEbmlWrite * ebml) -{ - GstFlowReturn res = ebml->last_write_result; - - ebml->last_write_result = GST_FLOW_OK; - - return res; -} - - -void -gst_ebml_start_streamheader (GstEbmlWrite * ebml) -{ - g_return_if_fail (ebml->streamheader == NULL); - - GST_DEBUG ("Starting streamheader at %" G_GUINT64_FORMAT, ebml->pos); - ebml->streamheader = gst_byte_writer_new_with_size (1000, FALSE); - ebml->streamheader_pos = ebml->pos; - ebml->writing_streamheader = TRUE; -} - -GstBuffer * -gst_ebml_stop_streamheader (GstEbmlWrite * ebml) -{ - GstBuffer *buffer; - - if (!ebml->streamheader) - return NULL; - - buffer = gst_byte_writer_free_and_get_buffer (ebml->streamheader); - ebml->streamheader = NULL; - GST_DEBUG ("Streamheader was size %d", GST_BUFFER_SIZE (buffer)); - - ebml->writing_streamheader = FALSE; - return buffer; -} - -/** - * gst_ebml_write_set_cache: - * @ebml: a #GstEbmlWrite. - * @size: size of the cache. - * Create a cache. - * - * The idea is that you use this for writing a lot - * of small elements. This will just "queue" all of - * them and they'll be pushed to the next element all - * at once. This saves memory and time for buffer - * allocation and init, and it looks better. - */ -void -gst_ebml_write_set_cache (GstEbmlWrite * ebml, guint size) -{ - g_return_if_fail (ebml->cache == NULL); - - GST_DEBUG ("Starting cache at %" G_GUINT64_FORMAT, ebml->pos); - ebml->cache = gst_byte_writer_new_with_size (size, FALSE); - ebml->cache_pos = ebml->pos; -} - -static gboolean -gst_ebml_writer_send_new_segment_event (GstEbmlWrite * ebml, guint64 new_pos) -{ - gboolean res; - - GST_INFO ("seeking to %" G_GUINT64_FORMAT, new_pos); - - res = gst_pad_push_event (ebml->srcpad, - gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, new_pos, -1, 0)); - - if (!res) - GST_WARNING ("seek to %" G_GUINT64_FORMAT "failed", new_pos); - - return res; -} - -/** - * gst_ebml_write_flush_cache: - * @ebml: a #GstEbmlWrite. - * @timestamp: timestamp of the buffer. - * - * Flush the cache. - */ -void -gst_ebml_write_flush_cache (GstEbmlWrite * ebml, gboolean is_keyframe, - GstClockTime timestamp) -{ - GstBuffer *buffer; - - if (!ebml->cache) - return; - - buffer = gst_byte_writer_free_and_get_buffer (ebml->cache); - ebml->cache = NULL; - GST_DEBUG ("Flushing cache of size %d", GST_BUFFER_SIZE (buffer)); - gst_buffer_set_caps (buffer, ebml->caps); - GST_BUFFER_TIMESTAMP (buffer) = timestamp; - GST_BUFFER_OFFSET (buffer) = ebml->pos - GST_BUFFER_SIZE (buffer); - GST_BUFFER_OFFSET_END (buffer) = ebml->pos; - if (ebml->last_write_result == GST_FLOW_OK) { - if (GST_BUFFER_OFFSET (buffer) != ebml->last_pos) { - gst_ebml_writer_send_new_segment_event (ebml, GST_BUFFER_OFFSET (buffer)); - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT); - } - if (ebml->writing_streamheader) { - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_IN_CAPS); - } - if (!is_keyframe) { - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); - } - ebml->last_pos = ebml->pos; - ebml->last_write_result = gst_pad_push (ebml->srcpad, buffer); - } else { - gst_buffer_unref (buffer); - } -} - - -/** - * gst_ebml_write_element_new: - * @ebml: a #GstEbmlWrite. - * @size: size of the requested buffer. - * - * Create a buffer for one element. If there is - * a cache, use that instead. - * - * Returns: A new #GstBuffer. - */ -static GstBuffer * -gst_ebml_write_element_new (GstEbmlWrite * ebml, guint8 ** data_out, guint size) -{ - /* Create new buffer of size + ID + length */ - GstBuffer *buf; - - /* length, ID */ - size += 12; - - buf = gst_buffer_new_and_alloc (size); - GST_BUFFER_TIMESTAMP (buf) = ebml->timestamp; - - *data_out = GST_BUFFER_DATA (buf); - - return buf; -} - - -/** - * gst_ebml_write_element_id: - * @data_inout: Pointer to data pointer - * @id: Element ID that should be written. - * - * Write element ID into a buffer. - */ -static void -gst_ebml_write_element_id (guint8 ** data_inout, guint32 id) -{ - guint8 *data = *data_inout; - guint bytes = 4, mask = 0x10; - - /* get ID length */ - while (!(id & (mask << ((bytes - 1) * 8))) && bytes > 0) { - mask <<= 1; - bytes--; - } - - /* if invalid ID, use dummy */ - if (bytes == 0) { - GST_WARNING ("Invalid ID, voiding"); - bytes = 1; - id = GST_EBML_ID_VOID; - } - - /* write out, BE */ - *data_inout += bytes; - while (bytes--) { - data[bytes] = id & 0xff; - id >>= 8; - } -} - - -/** - * gst_ebml_write_element_size: - * @data_inout: Pointer to data pointer - * @size: Element length. - * - * Write element length into a buffer. - */ -static void -gst_ebml_write_element_size (guint8 ** data_inout, guint64 size) -{ - guint8 *data = *data_inout; - guint bytes = 1, mask = 0x80; - - if (size != GST_EBML_SIZE_UNKNOWN) { - /* how many bytes? - use mask-1 because an all-1 bitset is not allowed */ - while ((size >> ((bytes - 1) * 8)) >= (mask - 1) && bytes <= 8) { - mask >>= 1; - bytes++; - } - - /* if invalid size, use max. */ - if (bytes > 8) { - GST_WARNING ("Invalid size, writing size unknown"); - mask = 0x01; - bytes = 8; - /* Now here's a real FIXME: we cannot read those yet! */ - size = GST_EBML_SIZE_UNKNOWN; - } - } else { - mask = 0x01; - bytes = 8; - } - - /* write out, BE, with length size marker */ - *data_inout += bytes; - while (bytes-- > 0) { - data[bytes] = size & 0xff; - size >>= 8; - if (!bytes) - *data |= mask; - } -} - - -/** - * gst_ebml_write_element_data: - * @data_inout: Pointer to data pointer - * @write: Data that should be written. - * @length: Length of the data. - * - * Write element data into a buffer. - */ -static void -gst_ebml_write_element_data (guint8 ** data_inout, guint8 * write, - guint64 length) -{ - memcpy (*data_inout, write, length); - *data_inout += length; -} - - -/** - * gst_ebml_write_element_push: - * @ebml: #GstEbmlWrite - * @buf: #GstBuffer to be written. - * @buf_data: Start of data to push from @buf (or NULL for whole buffer). - * @buf_data_end: Data pointer positioned after the last byte in @buf_data (or - * NULL for whole buffer). - * - * Write out buffer by moving it to the next element. - */ -static void -gst_ebml_write_element_push (GstEbmlWrite * ebml, GstBuffer * buf, - guint8 * buf_data, guint8 * buf_data_end) -{ - guint data_size; - - if (!buf_data) - buf_data = GST_BUFFER_DATA (buf); - - if (buf_data_end) { - data_size = buf_data_end - buf_data; - GST_BUFFER_SIZE (buf) = data_size; - } else { - data_size = GST_BUFFER_SIZE (buf); - } - - ebml->pos += data_size; - - /* if there's no cache, then don't push it! */ - if (ebml->writing_streamheader) { - gst_byte_writer_put_data (ebml->streamheader, buf_data, data_size); - } - if (ebml->cache) { - gst_byte_writer_put_data (ebml->cache, buf_data, data_size); - gst_buffer_unref (buf); - return; - } - - if (ebml->last_write_result == GST_FLOW_OK) { - buf = gst_buffer_make_metadata_writable (buf); - gst_buffer_set_caps (buf, ebml->caps); - GST_BUFFER_OFFSET (buf) = ebml->pos - data_size; - GST_BUFFER_OFFSET_END (buf) = ebml->pos; - if (ebml->writing_streamheader) { - GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS); - } - GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT); - - if (GST_BUFFER_OFFSET (buf) != ebml->last_pos) { - gst_ebml_writer_send_new_segment_event (ebml, GST_BUFFER_OFFSET (buf)); - GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT); - } - ebml->last_pos = ebml->pos; - ebml->last_write_result = gst_pad_push (ebml->srcpad, buf); - } else { - gst_buffer_unref (buf); - } -} - - -/** - * gst_ebml_write_seek: - * @ebml: #GstEbmlWrite - * @pos: Seek position. - * - * Seek. - */ -void -gst_ebml_write_seek (GstEbmlWrite * ebml, guint64 pos) -{ - if (ebml->writing_streamheader) { - GST_DEBUG ("wanting to seek to pos %" G_GUINT64_FORMAT, pos); - if (pos >= ebml->streamheader_pos && - pos <= ebml->streamheader_pos + ebml->streamheader->parent.size) { - gst_byte_writer_set_pos (ebml->streamheader, - pos - ebml->streamheader_pos); - GST_DEBUG ("seeked in streamheader to position %" G_GUINT64_FORMAT, - pos - ebml->streamheader_pos); - } else { - GST_WARNING - ("we are writing streamheader still and seek is out of bounds"); - } - } - /* Cache seeking. A bit dangerous, we assume the client writer - * knows what he's doing... */ - if (ebml->cache) { - /* within bounds? */ - if (pos >= ebml->cache_pos && - pos <= ebml->cache_pos + ebml->cache->parent.size) { - GST_DEBUG ("seeking in cache to %" G_GUINT64_FORMAT, pos); - ebml->pos = pos; - gst_byte_writer_set_pos (ebml->cache, ebml->pos - ebml->cache_pos); - return; - } else { - GST_LOG ("Seek outside cache range. Clearing..."); - gst_ebml_write_flush_cache (ebml, FALSE, GST_CLOCK_TIME_NONE); - } - } - - GST_INFO ("scheduling seek to %" G_GUINT64_FORMAT, pos); - ebml->pos = pos; -} - - -/** - * gst_ebml_write_get_uint_size: - * @num: Number to be encoded. - * - * Get number of bytes needed to write a uint. - * - * Returns: Encoded uint length. - */ -static guint -gst_ebml_write_get_uint_size (guint64 num) -{ - guint size = 1; - - /* get size */ - while (num >= (G_GINT64_CONSTANT (1) << (size * 8)) && size < 8) { - size++; - } - - return size; -} - - -/** - * gst_ebml_write_set_uint: - * @data_inout: Pointer to data pointer - * @num: Number to be written. - * @size: Encoded number length. - * - * Write an uint into a buffer. - */ -static void -gst_ebml_write_set_uint (guint8 ** data_inout, guint64 num, guint size) -{ - guint8 *data = *data_inout; - - *data_inout += size; - - while (size-- > 0) { - data[size] = num & 0xff; - num >>= 8; - } -} - - -/** - * gst_ebml_write_uint: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @num: Number to be written. - * - * Write uint element. - */ -void -gst_ebml_write_uint (GstEbmlWrite * ebml, guint32 id, guint64 num) -{ - GstBuffer *buf; - guint8 *data_start, *data_end; - guint size = gst_ebml_write_get_uint_size (num); - - buf = gst_ebml_write_element_new (ebml, &data_start, sizeof (num)); - data_end = data_start; - - /* write */ - gst_ebml_write_element_id (&data_end, id); - gst_ebml_write_element_size (&data_end, size); - gst_ebml_write_set_uint (&data_end, num, size); - gst_ebml_write_element_push (ebml, buf, data_start, data_end); -} - - -/** - * gst_ebml_write_sint: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @num: Number to be written. - * - * Write sint element. - */ -void -gst_ebml_write_sint (GstEbmlWrite * ebml, guint32 id, gint64 num) -{ - GstBuffer *buf; - guint8 *data_start, *data_end; - /* if the signed number is on the edge of a extra-byte, - * then we'll fall over when detecting it. Example: if I - * have a number (-)0x8000 (G_MINSHORT), then my abs()<<1 - * will be 0x10000; this is G_MAXUSHORT+1! So: if (<0) -1. */ - guint64 unum = (num < 0 ? (-num - 1) << 1 : num << 1); - guint size = gst_ebml_write_get_uint_size (unum); - - buf = gst_ebml_write_element_new (ebml, &data_start, sizeof (num)); - data_end = data_start; - - /* make unsigned */ - if (num >= 0) { - unum = num; - } else { - unum = 0x80 << (size - 1); - unum += num; - unum |= 0x80 << (size - 1); - } - - /* write */ - gst_ebml_write_element_id (&data_end, id); - gst_ebml_write_element_size (&data_end, size); - gst_ebml_write_set_uint (&data_end, unum, size); - gst_ebml_write_element_push (ebml, buf, data_start, data_end); -} - - -/** - * gst_ebml_write_float: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @num: Number to be written. - * - * Write float element. - */ -void -gst_ebml_write_float (GstEbmlWrite * ebml, guint32 id, gdouble num) -{ - GstBuffer *buf; - guint8 *data_start, *data_end; - - buf = gst_ebml_write_element_new (ebml, &data_start, sizeof (num)); - data_end = data_start; - - gst_ebml_write_element_id (&data_end, id); - gst_ebml_write_element_size (&data_end, 8); - num = GDOUBLE_TO_BE (num); - gst_ebml_write_element_data (&data_end, (guint8 *) & num, 8); - gst_ebml_write_element_push (ebml, buf, data_start, data_end); -} - - -/** - * gst_ebml_write_ascii: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @str: String to be written. - * - * Write string element. - */ -void -gst_ebml_write_ascii (GstEbmlWrite * ebml, guint32 id, const gchar * str) -{ - gint len = strlen (str) + 1; /* add trailing '\0' */ - GstBuffer *buf; - guint8 *data_start, *data_end; - - buf = gst_ebml_write_element_new (ebml, &data_start, len); - data_end = data_start; - - gst_ebml_write_element_id (&data_end, id); - gst_ebml_write_element_size (&data_end, len); - gst_ebml_write_element_data (&data_end, (guint8 *) str, len); - gst_ebml_write_element_push (ebml, buf, data_start, data_end); -} - - -/** - * gst_ebml_write_utf8: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @str: String to be written. - * - * Write utf8 encoded string element. - */ -void -gst_ebml_write_utf8 (GstEbmlWrite * ebml, guint32 id, const gchar * str) -{ - gst_ebml_write_ascii (ebml, id, str); -} - - -/** - * gst_ebml_write_date: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @date: Date in seconds since the unix epoch. - * - * Write date element. - */ -void -gst_ebml_write_date (GstEbmlWrite * ebml, guint32 id, gint64 date) -{ - gst_ebml_write_sint (ebml, id, (date - GST_EBML_DATE_OFFSET) * GST_SECOND); -} - -/** - * gst_ebml_write_master_start: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * - * Start wiriting mater element. - * - * Master writing is annoying. We use a size marker of - * the max. allowed length, so that we can later fill it - * in validly. - * - * Returns: Master starting position. - */ -guint64 -gst_ebml_write_master_start (GstEbmlWrite * ebml, guint32 id) -{ - guint64 pos = ebml->pos; - GstBuffer *buf; - guint8 *data_start, *data_end; - - buf = gst_ebml_write_element_new (ebml, &data_start, 0); - data_end = data_start; - - gst_ebml_write_element_id (&data_end, id); - pos += data_end - data_start; - gst_ebml_write_element_size (&data_end, GST_EBML_SIZE_UNKNOWN); - gst_ebml_write_element_push (ebml, buf, data_start, data_end); - - return pos; -} - - -/** - * gst_ebml_write_master_finish_full: - * @ebml: #GstEbmlWrite - * @startpos: Master starting position. - * - * Finish writing master element. Size of master element is difference between - * current position and the element start, and @extra_size added to this. - */ -void -gst_ebml_write_master_finish_full (GstEbmlWrite * ebml, guint64 startpos, - guint64 extra_size) -{ - guint64 pos = ebml->pos; - GstBuffer *buf; - - gst_ebml_write_seek (ebml, startpos); - - buf = gst_buffer_new_and_alloc (8); - GST_WRITE_UINT64_BE (GST_BUFFER_DATA (buf), - (G_GINT64_CONSTANT (1) << 56) | (pos - startpos - 8 + extra_size)); - - gst_ebml_write_element_push (ebml, buf, NULL, NULL); - gst_ebml_write_seek (ebml, pos); -} - -void -gst_ebml_write_master_finish (GstEbmlWrite * ebml, guint64 startpos) -{ - gst_ebml_write_master_finish_full (ebml, startpos, 0); -} - -/** - * gst_ebml_write_binary: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @binary: Data to be written. - * @length: Length of the data - * - * Write an element with binary data. - */ -void -gst_ebml_write_binary (GstEbmlWrite * ebml, - guint32 id, guint8 * binary, guint64 length) -{ - GstBuffer *buf; - guint8 *data_start, *data_end; - - buf = gst_ebml_write_element_new (ebml, &data_start, length); - data_end = data_start; - - gst_ebml_write_element_id (&data_end, id); - gst_ebml_write_element_size (&data_end, length); - gst_ebml_write_element_data (&data_end, binary, length); - gst_ebml_write_element_push (ebml, buf, data_start, data_end); -} - - -/** - * gst_ebml_write_buffer_header: - * @ebml: #GstEbmlWrite - * @id: Element ID. - * @length: Length of the data - * - * Write header of the binary element (use with gst_ebml_write_buffer function). - * - * For things like video frames and audio samples, - * you want to use this function, as it doesn't have - * the overhead of memcpy() that other functions - * such as write_binary() do have. - */ -void -gst_ebml_write_buffer_header (GstEbmlWrite * ebml, guint32 id, guint64 length) -{ - GstBuffer *buf; - guint8 *data_start, *data_end; - - buf = gst_ebml_write_element_new (ebml, &data_start, 0); - data_end = data_start; - - gst_ebml_write_element_id (&data_end, id); - gst_ebml_write_element_size (&data_end, length); - gst_ebml_write_element_push (ebml, buf, data_start, data_end); -} - - -/** - * gst_ebml_write_buffer: - * @ebml: #GstEbmlWrite - * @buf: #GstBuffer cointaining the data. - * - * Write binary element (see gst_ebml_write_buffer_header). - */ -void -gst_ebml_write_buffer (GstEbmlWrite * ebml, GstBuffer * buf) -{ - gst_ebml_write_element_push (ebml, buf, NULL, NULL); -} - - -/** - * gst_ebml_replace_uint: - * @ebml: #GstEbmlWrite - * @pos: Position of the uint that should be replaced. - * @num: New value. - * - * Replace uint with a new value. - * - * When replacing a uint, we assume that it is *always* - * 8-byte, since that's the safest guess we can do. This - * is just for simplicity. - * - * FIXME: this function needs to be replaced with something - * proper. This is a crude hack. - */ -void -gst_ebml_replace_uint (GstEbmlWrite * ebml, guint64 pos, guint64 num) -{ - guint64 oldpos = ebml->pos; - GstBuffer *buf = gst_buffer_new_and_alloc (8); - guint8 *data_start, *data_end; - - data_start = GST_BUFFER_DATA (buf); - data_end = data_start; - - gst_ebml_write_seek (ebml, pos); - gst_ebml_write_set_uint (&data_end, num, 8); - - gst_ebml_write_element_push (ebml, buf, data_start, data_end); - gst_ebml_write_seek (ebml, oldpos); -} - -/** - * gst_ebml_write_header: - * @ebml: #GstEbmlWrite - * @doctype: Document type. - * @version: Document type version. - * - * Write EBML header. - */ -void -gst_ebml_write_header (GstEbmlWrite * ebml, const gchar * doctype, - guint version) -{ - guint64 pos; - - /* write the basic EBML header */ - gst_ebml_write_set_cache (ebml, 0x40); - pos = gst_ebml_write_master_start (ebml, GST_EBML_ID_HEADER); -#if (GST_EBML_VERSION != 1) - gst_ebml_write_uint (ebml, GST_EBML_ID_EBMLVERSION, GST_EBML_VERSION); - gst_ebml_write_uint (ebml, GST_EBML_ID_EBMLREADVERSION, GST_EBML_VERSION); -#endif -#if 0 - /* we don't write these until they're "non-default" (never!) */ - gst_ebml_write_uint (ebml, GST_EBML_ID_EBMLMAXIDLENGTH, sizeof (guint32)); - gst_ebml_write_uint (ebml, GST_EBML_ID_EBMLMAXSIZELENGTH, sizeof (guint64)); -#endif - gst_ebml_write_ascii (ebml, GST_EBML_ID_DOCTYPE, doctype); - gst_ebml_write_uint (ebml, GST_EBML_ID_DOCTYPEVERSION, version); - gst_ebml_write_uint (ebml, GST_EBML_ID_DOCTYPEREADVERSION, version); - gst_ebml_write_master_finish (ebml, pos); - gst_ebml_write_flush_cache (ebml, FALSE, 0); -} diff --git a/mobile/gst/matroska/ebml-write.h b/mobile/gst/matroska/ebml-write.h deleted file mode 100644 index 4d0293d..0000000 --- a/mobile/gst/matroska/ebml-write.h +++ /dev/null @@ -1,152 +0,0 @@ -/* GStreamer EBML I/O - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2005 Michal Benes <michal.benes@xeris.cz> - * - * ebml-write.c: write EBML data to file/stream - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_EBML_WRITE_H__ -#define __GST_EBML_WRITE_H__ - -#include <glib.h> -#include <gst/gst.h> -#include <gst/base/gstbytewriter.h> - -G_BEGIN_DECLS - -#define GST_TYPE_EBML_WRITE \ - (gst_ebml_write_get_type ()) -#define GST_EBML_WRITE(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_EBML_WRITE, GstEbmlWrite)) -#define GST_EBML_WRITE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_EBML_WRITE, GstEbmlWriteClass)) -#define GST_IS_EBML_WRITE(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_EBML_WRITE)) -#define GST_IS_EBML_WRITE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_EBML_WRITE)) -#define GST_EBML_WRITE_GET_CLASS(obj) \ - (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_EBML_WRITE, GstEbmlWriteClass)) - -typedef struct _GstEbmlWrite { - GstObject object; - - GstPad *srcpad; - guint64 pos; - guint64 last_pos; - GstClockTime timestamp; - - GstByteWriter *cache; - guint64 cache_pos; - - GstFlowReturn last_write_result; - - gboolean writing_streamheader; - GstByteWriter *streamheader; - guint64 streamheader_pos; - - GstCaps *caps; -} GstEbmlWrite; - -typedef struct _GstEbmlWriteClass { - GstObjectClass parent; -} GstEbmlWriteClass; - -GType gst_ebml_write_get_type (void); - -GstEbmlWrite *gst_ebml_write_new (GstPad *srcpad); -void gst_ebml_write_reset (GstEbmlWrite *ebml); - -GstFlowReturn gst_ebml_last_write_result (GstEbmlWrite *ebml); - -/* Used to create streamheaders */ -void gst_ebml_start_streamheader (GstEbmlWrite *ebml); -GstBuffer* gst_ebml_stop_streamheader (GstEbmlWrite *ebml); - -/* - * Caching means that we do not push one buffer for - * each element, but fill this one until a flush. - */ -void gst_ebml_write_set_cache (GstEbmlWrite *ebml, - guint size); -void gst_ebml_write_flush_cache (GstEbmlWrite *ebml, - gboolean is_keyframe, - GstClockTime timestamp); - -/* - * Seeking. - */ -void gst_ebml_write_seek (GstEbmlWrite *ebml, - guint64 pos); - -/* - * Data writing. - */ -void gst_ebml_write_uint (GstEbmlWrite *ebml, - guint32 id, - guint64 num); -void gst_ebml_write_sint (GstEbmlWrite *ebml, - guint32 id, - gint64 num); -void gst_ebml_write_float (GstEbmlWrite *ebml, - guint32 id, - gdouble num); -void gst_ebml_write_ascii (GstEbmlWrite *ebml, - guint32 id, - const gchar *str); -void gst_ebml_write_utf8 (GstEbmlWrite *ebml, - guint32 id, - const gchar *str); -void gst_ebml_write_date (GstEbmlWrite *ebml, - guint32 id, - gint64 date); -guint64 gst_ebml_write_master_start (GstEbmlWrite *ebml, - guint32 id); -void gst_ebml_write_master_finish (GstEbmlWrite *ebml, - guint64 startpos); -void gst_ebml_write_master_finish_full (GstEbmlWrite * ebml, - guint64 startpos, - guint64 extra_size); -void gst_ebml_write_binary (GstEbmlWrite *ebml, - guint32 id, - guchar *binary, - guint64 length); -void gst_ebml_write_header (GstEbmlWrite *ebml, - const gchar *doctype, - guint version); - -/* - * Note: this is supposed to be used only for media data. - */ -void gst_ebml_write_buffer_header (GstEbmlWrite *ebml, - guint32 id, - guint64 length); -void gst_ebml_write_buffer (GstEbmlWrite *ebml, - GstBuffer *data); - -/* - * A hack, basically... See matroska-mux.c. I should actually - * make a nice _replace_element_with_size() or so, but this - * works for now. - */ -void gst_ebml_replace_uint (GstEbmlWrite *ebml, - guint64 pos, - guint64 num); - -G_END_DECLS - -#endif /* __GST_EBML_WRITE_H__ */ diff --git a/mobile/gst/matroska/lzo.c b/mobile/gst/matroska/lzo.c deleted file mode 100644 index 995638f..0000000 --- a/mobile/gst/matroska/lzo.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * LZO 1x decompression - * Copyright (c) 2006 Reimar Doeffinger - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <gst/gst.h> -#include <stdlib.h> -#include <string.h> -#include "_stdint.h" -#include "lzo.h" - -/*! define if we may write up to 12 bytes beyond the output buffer */ -/* #define OUTBUF_PADDED 1 */ -/*! define if we may read up to 8 bytes beyond the input buffer */ -/* #define INBUF_PADDED 1 */ -typedef struct LZOContext -{ - const uint8_t *in, *in_end; - uint8_t *out_start, *out, *out_end; - int error; -} LZOContext; - -/* - * \brief read one byte from input buffer, avoiding overrun - * \return byte read - */ -static inline int -get_byte (LZOContext * c) -{ - if (c->in < c->in_end) - return *c->in++; - c->error |= LZO_INPUT_DEPLETED; - return 1; -} - -#ifdef INBUF_PADDED -#define GETB(c) (*(c).in++) -#else -#define GETB(c) get_byte(&(c)) -#endif - -/* - * \brief decode a length value in the coding used by lzo - * \param x previous byte value - * \param mask bits used from x - * \return decoded length value - */ -static inline int -get_len (LZOContext * c, int x, int mask) -{ - int cnt = x & mask; - if (!cnt) { - while (!(x = get_byte (c))) - cnt += 255; - cnt += mask + x; - } - return cnt; -} - -/*#define UNALIGNED_LOADSTORE */ -#define BUILTIN_MEMCPY -#ifdef UNALIGNED_LOADSTORE -#define COPY2(d, s) *(uint16_t *)(d) = *(uint16_t *)(s); -#define COPY4(d, s) *(uint32_t *)(d) = *(uint32_t *)(s); -#elif defined(BUILTIN_MEMCPY) -#define COPY2(d, s) memcpy(d, s, 2); -#define COPY4(d, s) memcpy(d, s, 4); -#else -#define COPY2(d, s) (d)[0] = (s)[0]; (d)[1] = (s)[1]; -#define COPY4(d, s) (d)[0] = (s)[0]; (d)[1] = (s)[1]; (d)[2] = (s)[2]; (d)[3] = (s)[3]; -#endif - -/* - * \brief copy bytes from input to output buffer with checking - * \param cnt number of bytes to copy, must be >= 0 - */ -static inline void -copy (LZOContext * c, int cnt) -{ - register const uint8_t *src = c->in; - register uint8_t *dst = c->out; - if (cnt > c->in_end - src) { - cnt = MAX (c->in_end - src, 0); - c->error |= LZO_INPUT_DEPLETED; - } - if (cnt > c->out_end - dst) { - cnt = MAX (c->out_end - dst, 0); - c->error |= LZO_OUTPUT_FULL; - } -#if defined(INBUF_PADDED) && defined(OUTBUF_PADDED) - COPY4 (dst, src); - src += 4; - dst += 4; - cnt -= 4; - if (cnt > 0) -#endif - memcpy (dst, src, cnt); - c->in = src + cnt; - c->out = dst + cnt; -} - -/* - * \brief copy previously decoded bytes to current position - * \param back how many bytes back we start - * \param cnt number of bytes to copy, must be >= 0 - * - * cnt > back is valid, this will copy the bytes we just copied, - * thus creating a repeating pattern with a period length of back. - */ -static inline void -copy_backptr (LZOContext * c, int back, int cnt) -{ - register const uint8_t *src = &c->out[-back]; - register uint8_t *dst = c->out; - if (src < c->out_start || src > dst) { - c->error |= LZO_INVALID_BACKPTR; - return; - } - if (cnt > c->out_end - dst) { - cnt = MAX (c->out_end - dst, 0); - c->error |= LZO_OUTPUT_FULL; - } - if (back == 1) { - memset (dst, *src, cnt); - dst += cnt; - } else { -#ifdef OUTBUF_PADDED - COPY2 (dst, src); - COPY2 (dst + 2, src + 2); - src += 4; - dst += 4; - cnt -= 4; - if (cnt > 0) { - COPY2 (dst, src); - COPY2 (dst + 2, src + 2); - COPY2 (dst + 4, src + 4); - COPY2 (dst + 6, src + 6); - src += 8; - dst += 8; - cnt -= 8; - } -#endif - if (cnt > 0) { - int blocklen = back; - while (cnt > blocklen) { - memcpy (dst, src, blocklen); - dst += blocklen; - cnt -= blocklen; - blocklen <<= 1; - } - memcpy (dst, src, cnt); - } - dst += cnt; - } - c->out = dst; -} - -/* - * \brief decode LZO 1x compressed data - * \param out output buffer - * \param outlen size of output buffer, number of bytes left are returned here - * \param in input buffer - * \param inlen size of input buffer, number of bytes left are returned here - * \return 0 on success, otherwise error flags, see lzo.h - * - * make sure all buffers are appropriately padded, in must provide - * LZO_INPUT_PADDING, out must provide LZO_OUTPUT_PADDING additional bytes - */ -int -lzo1x_decode (void *out, int *outlen, const void *in, int *inlen) -{ - int state = 0; - int x; - LZOContext c; - c.in = in; - c.in_end = (const uint8_t *) in + *inlen; - c.out = c.out_start = out; - c.out_end = (uint8_t *) out + *outlen; - c.error = 0; - x = GETB (c); - if (x > 17) { - copy (&c, x - 17); - x = GETB (c); - if (x < 16) - c.error |= LZO_ERROR; - } - if (c.in > c.in_end) - c.error |= LZO_INPUT_DEPLETED; - while (!c.error) { - int cnt, back; - if (x > 15) { - if (x > 63) { - cnt = (x >> 5) - 1; - back = (GETB (c) << 3) + ((x >> 2) & 7) + 1; - } else if (x > 31) { - cnt = get_len (&c, x, 31); - x = GETB (c); - back = (GETB (c) << 6) + (x >> 2) + 1; - } else { - cnt = get_len (&c, x, 7); - back = (1 << 14) + ((x & 8) << 11); - x = GETB (c); - back += (GETB (c) << 6) + (x >> 2); - if (back == (1 << 14)) { - if (cnt != 1) - c.error |= LZO_ERROR; - break; - } - } - } else if (!state) { - cnt = get_len (&c, x, 15); - copy (&c, cnt + 3); - x = GETB (c); - if (x > 15) - continue; - cnt = 1; - back = (1 << 11) + (GETB (c) << 2) + (x >> 2) + 1; - } else { - cnt = 0; - back = (GETB (c) << 2) + (x >> 2) + 1; - } - copy_backptr (&c, back, cnt + 2); - state = cnt = x & 3; - copy (&c, cnt); - x = GETB (c); - } - *inlen = c.in_end - c.in; - if (c.in > c.in_end) - *inlen = 0; - *outlen = c.out_end - c.out; - return c.error; -} - -#ifdef TEST -#include <stdio.h> -#include <lzo/lzo1x.h> -#include "log.h" -#define MAXSZ (10*1024*1024) -int -main (int argc, char *argv[]) -{ - FILE *in = fopen (argv[1], "rb"); - uint8_t *orig = av_malloc (MAXSZ + 16); - uint8_t *comp = av_malloc (2 * MAXSZ + 16); - uint8_t *decomp = av_malloc (MAXSZ + 16); - size_t s = fread (orig, 1, MAXSZ, in); - lzo_uint clen = 0; - long tmp[LZO1X_MEM_COMPRESS]; - int inlen, outlen; - int i; - av_log_level = AV_LOG_DEBUG; - lzo1x_999_compress (orig, s, comp, &clen, tmp); - for (i = 0; i < 300; i++) { - START_TIMER inlen = clen; - outlen = MAXSZ; -#ifdef LIBLZO - if (lzo1x_decompress_safe (comp, inlen, decomp, &outlen, NULL)) -#elif defined(LIBLZO_UNSAFE) - if (lzo1x_decompress (comp, inlen, decomp, &outlen, NULL)) -#else - if (lzo1x_decode (decomp, &outlen, comp, &inlen)) -#endif - av_log (NULL, AV_LOG_ERROR, "decompression error\n"); - STOP_TIMER ("lzod") - } - if (memcmp (orig, decomp, s)) - av_log (NULL, AV_LOG_ERROR, "decompression incorrect\n"); - else - av_log (NULL, AV_LOG_ERROR, "decompression ok\n"); - return 0; -} -#endif diff --git a/mobile/gst/matroska/lzo.h b/mobile/gst/matroska/lzo.h deleted file mode 100644 index e7795f7..0000000 --- a/mobile/gst/matroska/lzo.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * LZO 1x decompression - * copyright (c) 2006 Reimar Doeffinger - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef FFMPEG_LZO_H -#define FFMPEG_LZO_H - -#define LZO_INPUT_DEPLETED 1 -#define LZO_OUTPUT_FULL 2 -#define LZO_INVALID_BACKPTR 4 -#define LZO_ERROR 8 - -#define LZO_INPUT_PADDING 8 -#define LZO_OUTPUT_PADDING 12 - -int lzo1x_decode(void *out, int *outlen, const void *in, int *inlen); - -#endif /* FFMPEG_LZO_H */ diff --git a/mobile/gst/matroska/matroska-demux.c b/mobile/gst/matroska/matroska-demux.c deleted file mode 100644 index 8ac0e59..0000000 --- a/mobile/gst/matroska/matroska-demux.c +++ /dev/null @@ -1,6797 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2006 Tim-Philipp Müller <tim centricular net> - * (c) 2008 Sebastian Dröge <slomo@circular-chaos.org> - * (c) 2011 Debarshi Ray <rishi@gnu.org> - * - * matroska-demux.c: matroska file/stream demuxer - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* TODO: check CRC32 if present - * TODO: there can be a segment after the first segment. Handle like - * chained oggs. Fixes #334082 - * TODO: Test samples: http://www.matroska.org/samples/matrix/index.html - * http://samples.mplayerhq.hu/Matroska/ - * TODO: check if demuxing is done correct for all codecs according to spec - * TODO: seeking with incomplete or without CUE - */ - -/** - * SECTION:element-matroskademux - * - * matroskademux demuxes a Matroska file into the different contained streams. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch -v filesrc location=/path/to/mkv ! matroskademux ! vorbisdec ! audioconvert ! audioresample ! autoaudiosink - * ]| This pipeline demuxes a Matroska file and outputs the contained Vorbis audio. - * </refsect2> - */ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -/* FIXME 0.11: suppress warnings for deprecated API such as GStaticRecMutex - * with newer GLib versions (>= 2.31.0) */ -#define GLIB_DISABLE_DEPRECATION_WARNINGS - -#include <math.h> -#include <string.h> -#include <glib/gprintf.h> - -/* For AVI compatibility mode - and for fourcc stuff */ -#include <gst/riff/riff-read.h> -#include <gst/riff/riff-ids.h> -#include <gst/riff/riff-media.h> - -#include <gst/tag/tag.h> - -#include <gst/pbutils/pbutils.h> - -#include "matroska-demux.h" -#include "matroska-ids.h" - -GST_DEBUG_CATEGORY_STATIC (matroskademux_debug); -#define GST_CAT_DEFAULT matroskademux_debug - -#define DEBUG_ELEMENT_START(demux, ebml, element) \ - GST_DEBUG_OBJECT (demux, "Parsing " element " element at offset %" \ - G_GUINT64_FORMAT, gst_ebml_read_get_pos (ebml)) - -#define DEBUG_ELEMENT_STOP(demux, ebml, element, ret) \ - GST_DEBUG_OBJECT (demux, "Parsing " element " element " \ - " finished with '%s'", gst_flow_get_name (ret)) - -enum -{ - ARG_0, - ARG_METADATA, - ARG_STREAMINFO, - ARG_MAX_GAP_TIME -}; - -#define DEFAULT_MAX_GAP_TIME (2 * GST_SECOND) - -static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("video/x-matroska; video/webm") - ); - -/* TODO: fill in caps! */ - -static GstStaticPadTemplate audio_src_templ = -GST_STATIC_PAD_TEMPLATE ("audio_%02d", - GST_PAD_SRC, - GST_PAD_SOMETIMES, - GST_STATIC_CAPS ("ANY") - ); - -static GstStaticPadTemplate video_src_templ = -GST_STATIC_PAD_TEMPLATE ("video_%02d", - GST_PAD_SRC, - GST_PAD_SOMETIMES, - GST_STATIC_CAPS ("ANY") - ); - -static GstStaticPadTemplate subtitle_src_templ = - GST_STATIC_PAD_TEMPLATE ("subtitle_%02d", - GST_PAD_SRC, - GST_PAD_SOMETIMES, - GST_STATIC_CAPS ("text/x-pango-markup; application/x-ssa; " - "application/x-ass;application/x-usf; video/x-dvd-subpicture; " - "subpicture/x-pgs; subtitle/x-kate; " "application/x-subtitle-unknown") - ); - -static GstFlowReturn gst_matroska_demux_parse_id (GstMatroskaDemux * demux, - guint32 id, guint64 length, guint needed); - -/* element functions */ -static void gst_matroska_demux_loop (GstPad * pad); - -static gboolean gst_matroska_demux_element_send_event (GstElement * element, - GstEvent * event); -static gboolean gst_matroska_demux_element_query (GstElement * element, - GstQuery * query); - -/* pad functions */ -static gboolean gst_matroska_demux_sink_activate_pull (GstPad * sinkpad, - gboolean active); -static gboolean gst_matroska_demux_sink_activate (GstPad * sinkpad); - -static gboolean gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux, - GstPad * pad, GstEvent * event); -static gboolean gst_matroska_demux_handle_src_event (GstPad * pad, - GstEvent * event); -static const GstQueryType *gst_matroska_demux_get_src_query_types (GstPad * - pad); -static gboolean gst_matroska_demux_handle_src_query (GstPad * pad, - GstQuery * query); - -static gboolean gst_matroska_demux_handle_sink_event (GstPad * pad, - GstEvent * event); -static GstFlowReturn gst_matroska_demux_chain (GstPad * pad, - GstBuffer * buffer); - -static GstStateChangeReturn -gst_matroska_demux_change_state (GstElement * element, - GstStateChange transition); -static void -gst_matroska_demux_set_index (GstElement * element, GstIndex * index); -static GstIndex *gst_matroska_demux_get_index (GstElement * element); - -/* caps functions */ -static GstCaps *gst_matroska_demux_video_caps (GstMatroskaTrackVideoContext - * videocontext, const gchar * codec_id, guint8 * data, guint size, - gchar ** codec_name, guint32 * riff_fourcc); -static GstCaps *gst_matroska_demux_audio_caps (GstMatroskaTrackAudioContext - * audiocontext, const gchar * codec_id, guint8 * data, guint size, - gchar ** codec_name, guint16 * riff_audio_fmt); -static GstCaps - * gst_matroska_demux_subtitle_caps (GstMatroskaTrackSubtitleContext * - subtitlecontext, const gchar * codec_id, gpointer data, guint size); - -/* stream methods */ -static void gst_matroska_demux_reset (GstElement * element); -static gboolean perform_seek_to_offset (GstMatroskaDemux * demux, - guint64 offset); - -/* gobject functions */ -static void gst_matroska_demux_set_property (GObject * object, - guint prop_id, const GValue * value, GParamSpec * pspec); -static void gst_matroska_demux_get_property (GObject * object, - guint prop_id, GValue * value, GParamSpec * pspec); - -#ifdef MKV_DEMUX_MODIFICATION -static GstMatroskaIndex *gst_matroska_demux_get_next_index (GstMatroskaDemux * demux, GstMatroskaTrackContext * track, GstMatroskaIndex *entry); -static GstFlowReturn gst_matroska_demux_trickplay_find_tracks (GstMatroskaDemux * demux); -static GstFlowReturn gst_matroska_demux_trickplay_parse_id (GstMatroskaDemux * demux, guint32 id, guint64 length, guint needed); -static GstFlowReturn gst_matroska_demux_trickplay_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux, GstEbmlRead * ebml, guint64 cluster_time, guint64 cluster_offset, gboolean is_simpleblock); -static gint32 gst_matroska_demux_trickplay_nframes2show_bw_keyframes (GstMatroskaDemux* demux, GstMatroskaTrackContext * stream); -static GstFlowReturn gst_matroska_demux_backward_trickplay (GstMatroskaDemux* demux, GstMatroskaTrackContext * stream, GstBuffer* sub); -static GstFlowReturn gst_matroska_demux_forward_trickplay (GstMatroskaDemux* demux, GstMatroskaTrackContext * stream, GstBuffer *buffer, gboolean *skip); -static gboolean gst_matroska_demux_create_index_table(GstMatroskaDemux* demux); -#endif - -GType gst_matroska_demux_get_type (void); -GST_BOILERPLATE (GstMatroskaDemux, gst_matroska_demux, GstElement, - GST_TYPE_ELEMENT); - -static void -gst_matroska_demux_base_init (gpointer klass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - gst_element_class_add_static_pad_template (element_class, &video_src_templ); - gst_element_class_add_static_pad_template (element_class, &audio_src_templ); - gst_element_class_add_static_pad_template (element_class, - &subtitle_src_templ); - gst_element_class_add_static_pad_template (element_class, &sink_templ); - - gst_element_class_set_details_simple (element_class, "Matroska demuxer", - "Codec/Demuxer", - "Demuxes Matroska/WebM streams into video/audio/subtitles", - "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>"); -} - -static void -gst_matroska_demux_finalize (GObject * object) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (object); - - if (demux->common.src) { - g_ptr_array_free (demux->common.src, TRUE); - demux->common.src = NULL; - } - - if (demux->common.global_tags) { - gst_tag_list_free (demux->common.global_tags); - demux->common.global_tags = NULL; - } - - g_object_unref (demux->common.adapter); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static void -gst_matroska_demux_class_init (GstMatroskaDemuxClass * klass) -{ - GObjectClass *gobject_class = (GObjectClass *) klass; - GstElementClass *gstelement_class = (GstElementClass *) klass; - - GST_DEBUG_CATEGORY_INIT (matroskademux_debug, "matroskademux", 0, - "Matroska demuxer"); - - gobject_class->finalize = gst_matroska_demux_finalize; - - gobject_class->get_property = gst_matroska_demux_get_property; - gobject_class->set_property = gst_matroska_demux_set_property; - - g_object_class_install_property (gobject_class, ARG_MAX_GAP_TIME, - g_param_spec_uint64 ("max-gap-time", "Maximum gap time", - "The demuxer sends out newsegment events for skipping " - "gaps longer than this (0 = disabled).", 0, G_MAXUINT64, - DEFAULT_MAX_GAP_TIME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); - - gstelement_class->change_state = - GST_DEBUG_FUNCPTR (gst_matroska_demux_change_state); - gstelement_class->send_event = - GST_DEBUG_FUNCPTR (gst_matroska_demux_element_send_event); - gstelement_class->query = - GST_DEBUG_FUNCPTR (gst_matroska_demux_element_query); - - gstelement_class->set_index = - GST_DEBUG_FUNCPTR (gst_matroska_demux_set_index); - gstelement_class->get_index = - GST_DEBUG_FUNCPTR (gst_matroska_demux_get_index); -} - -static void -gst_matroska_demux_init (GstMatroskaDemux * demux, - GstMatroskaDemuxClass * klass) -{ - demux->common.sinkpad = gst_pad_new_from_static_template (&sink_templ, - "sink"); - gst_pad_set_activate_function (demux->common.sinkpad, - GST_DEBUG_FUNCPTR (gst_matroska_demux_sink_activate)); - gst_pad_set_activatepull_function (demux->common.sinkpad, - GST_DEBUG_FUNCPTR (gst_matroska_demux_sink_activate_pull)); - gst_pad_set_chain_function (demux->common.sinkpad, - GST_DEBUG_FUNCPTR (gst_matroska_demux_chain)); - gst_pad_set_event_function (demux->common.sinkpad, - GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_sink_event)); - gst_element_add_pad (GST_ELEMENT (demux), demux->common.sinkpad); - - /* initial stream no. */ - demux->common.src = NULL; - - demux->common.writing_app = NULL; - demux->common.muxing_app = NULL; - demux->common.index = NULL; - demux->common.global_tags = NULL; - - demux->common.adapter = gst_adapter_new (); - -#ifdef MKV_DEMUX_MODIFICATION - demux->found_videokeyframe = FALSE; - demux->found_audioframe = FALSE; - demux->is_eos_blockgroup = FALSE; - demux->is_eos_simpleblock = FALSE; - demux->video_keyframe_pushed = FALSE; - demux->seek_head_cluster_info_absent = FALSE; - demux->seek_head_cue_info_absent = FALSE; - demux->index_table_created = TRUE; - demux->index_table_array_creation = FALSE; -#endif - - /* property defaults */ - demux->max_gap_time = DEFAULT_MAX_GAP_TIME; - - /* finish off */ - gst_matroska_demux_reset (GST_ELEMENT (demux)); -} - -static void -gst_matroska_track_free (GstMatroskaTrackContext * track) -{ - g_free (track->codec_id); - g_free (track->codec_name); - g_free (track->name); - g_free (track->language); - g_free (track->codec_priv); - g_free (track->codec_state); - -#ifdef MKV_DEMUX_MODIFICATION - while (!g_queue_is_empty (track->queue)) { - GstBuffer* buf = g_queue_pop_head (track->queue); - gst_buffer_unref (buf); - } - g_queue_free (track->queue); -#endif - - if (track->encodings != NULL) { - int i; - - for (i = 0; i < track->encodings->len; ++i) { - GstMatroskaTrackEncoding *enc = &g_array_index (track->encodings, - GstMatroskaTrackEncoding, - i); - - g_free (enc->comp_settings); - } - g_array_free (track->encodings, TRUE); - } - - if (track->pending_tags) - gst_tag_list_free (track->pending_tags); - - if (track->index_table) - g_array_free (track->index_table, TRUE); - - g_free (track); -} - -/* - * Returns the aggregated GstFlowReturn. - */ -static GstFlowReturn -gst_matroska_demux_combine_flows (GstMatroskaDemux * demux, - GstMatroskaTrackContext * track, GstFlowReturn ret) -{ - guint i; - - /* store the value */ - track->last_flow = ret; - - /* any other error that is not-linked can be returned right away */ - if (ret != GST_FLOW_NOT_LINKED) - goto done; - - /* only return NOT_LINKED if all other pads returned NOT_LINKED */ - g_assert (demux->common.src->len == demux->common.num_streams); - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *ostream = g_ptr_array_index (demux->common.src, - i); - - if (ostream == NULL) - continue; - - ret = ostream->last_flow; - /* some other return value (must be SUCCESS but we can return - * other values as well) */ - if (ret != GST_FLOW_NOT_LINKED) - goto done; - } - /* if we get here, all other pads were unlinked and we return - * NOT_LINKED then */ -done: - GST_LOG_OBJECT (demux, "combined return %s", gst_flow_get_name (ret)); - return ret; -} - -static void -gst_matroska_demux_free_parsed_el (gpointer mem, gpointer user_data) -{ - g_slice_free (guint64, mem); -} - -static void -gst_matroska_demux_reset (GstElement * element) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element); - guint i; - - GST_DEBUG_OBJECT (demux, "Resetting state"); - - /* reset input */ - demux->common.state = GST_MATROSKA_READ_STATE_START; - - /* clean up existing streams */ - if (demux->common.src) { - g_assert (demux->common.src->len == demux->common.num_streams); - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *context = g_ptr_array_index (demux->common.src, - i); - - if (context->pad != NULL) - gst_element_remove_pad (GST_ELEMENT (demux), context->pad); - - gst_caps_replace (&context->caps, NULL); - gst_matroska_track_free (context); - } - g_ptr_array_free (demux->common.src, TRUE); - } - demux->common.src = g_ptr_array_new (); - - demux->common.num_streams = 0; - demux->num_a_streams = 0; - demux->num_t_streams = 0; - demux->num_v_streams = 0; - - /* reset media info */ - g_free (demux->common.writing_app); - demux->common.writing_app = NULL; - g_free (demux->common.muxing_app); - demux->common.muxing_app = NULL; - - /* reset indexes */ - if (demux->common.index) { - g_array_free (demux->common.index, TRUE); - demux->common.index = NULL; - } - - if (demux->clusters) { - g_array_free (demux->clusters, TRUE); - demux->clusters = NULL; - } - - /* reset timers */ - demux->clock = NULL; - demux->common.time_scale = 1000000; - demux->common.created = G_MININT64; - - demux->common.index_parsed = FALSE; - demux->tracks_parsed = FALSE; - demux->common.segmentinfo_parsed = FALSE; - demux->common.attachments_parsed = FALSE; - - g_list_foreach (demux->common.tags_parsed, - (GFunc) gst_matroska_demux_free_parsed_el, NULL); - g_list_free (demux->common.tags_parsed); - demux->common.tags_parsed = NULL; - - g_list_foreach (demux->seek_parsed, - (GFunc) gst_matroska_demux_free_parsed_el, NULL); - g_list_free (demux->seek_parsed); - demux->seek_parsed = NULL; - - gst_segment_init (&demux->common.segment, GST_FORMAT_TIME); - demux->last_stop_end = GST_CLOCK_TIME_NONE; - demux->seek_block = 0; - demux->stream_start_time = GST_CLOCK_TIME_NONE; - - demux->common.offset = 0; - demux->cluster_time = GST_CLOCK_TIME_NONE; - demux->cluster_offset = 0; - demux->next_cluster_offset = 0; - demux->index_offset = 0; - demux->seekable = FALSE; - demux->need_newsegment = FALSE; - demux->building_index = FALSE; - if (demux->seek_event) { - gst_event_unref (demux->seek_event); - demux->seek_event = NULL; - } - - demux->seek_index = NULL; - demux->seek_entry = 0; - - if (demux->close_segment) { - gst_event_unref (demux->close_segment); - demux->close_segment = NULL; - } - - if (demux->new_segment) { - gst_event_unref (demux->new_segment); - demux->new_segment = NULL; - } - - if (demux->common.element_index) { - gst_object_unref (demux->common.element_index); - demux->common.element_index = NULL; - } - demux->common.element_index_writer_id = -1; - - if (demux->common.global_tags) { - gst_tag_list_free (demux->common.global_tags); - } - demux->common.global_tags = gst_tag_list_new (); - - if (demux->common.cached_buffer) { - gst_buffer_unref (demux->common.cached_buffer); - demux->common.cached_buffer = NULL; - } - - demux->invalid_duration = FALSE; -} - -static GstBuffer * -gst_matroska_decode_buffer (GstMatroskaTrackContext * context, GstBuffer * buf) -{ - guint8 *data; - guint size; - GstBuffer *new_buf; - - g_return_val_if_fail (GST_IS_BUFFER (buf), NULL); - - GST_DEBUG ("decoding buffer %p", buf); - - data = GST_BUFFER_DATA (buf); - size = GST_BUFFER_SIZE (buf); - - g_return_val_if_fail (data != NULL && size > 0, buf); - - if (gst_matroska_decode_data (context->encodings, &data, &size, - GST_MATROSKA_TRACK_ENCODING_SCOPE_FRAME, FALSE)) { - new_buf = gst_buffer_new (); - GST_BUFFER_MALLOCDATA (new_buf) = (guint8 *) data; - GST_BUFFER_DATA (new_buf) = (guint8 *) data; - GST_BUFFER_SIZE (new_buf) = size; - - gst_buffer_unref (buf); - buf = new_buf; - - return buf; - } else { - GST_DEBUG ("decode data failed"); - gst_buffer_unref (buf); - return NULL; - } -} - -static GstFlowReturn -gst_matroska_demux_add_stream (GstMatroskaDemux * demux, GstEbmlRead * ebml) -{ - GstElementClass *klass = GST_ELEMENT_GET_CLASS (demux); - GstMatroskaTrackContext *context; - GstPadTemplate *templ = NULL; - GstCaps *caps = NULL; - gchar *padname = NULL; - GstFlowReturn ret; - guint32 id, riff_fourcc = 0; - guint16 riff_audio_fmt = 0; - GstTagList *list = NULL; - gchar *codec = NULL; - - DEBUG_ELEMENT_START (demux, ebml, "TrackEntry"); - - /* start with the master */ - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (demux, ebml, "TrackEntry", ret); - return ret; - } - - /* allocate generic... if we know the type, we'll g_renew() - * with the precise type */ - context = g_new0 (GstMatroskaTrackContext, 1); - g_ptr_array_add (demux->common.src, context); - context->index = demux->common.num_streams; - context->index_writer_id = -1; - context->type = 0; /* no type yet */ - context->default_duration = 0; - context->pos = 0; -#ifdef MKV_DEMUX_MODIFICATION - context->found_next_kframe = FALSE; -#endif - context->set_discont = TRUE; - context->timecodescale = 1.0; - context->flags = - GST_MATROSKA_TRACK_ENABLED | GST_MATROSKA_TRACK_DEFAULT | - GST_MATROSKA_TRACK_LACING; - context->last_flow = GST_FLOW_OK; - context->to_offset = G_MAXINT64; - context->alignment = 1; - demux->common.num_streams++; - g_assert (demux->common.src->len == demux->common.num_streams); - -#ifdef MKV_DEMUX_MODIFICATION - context->queue = g_queue_new (); -// context->found_key_frame = FALSE; - context->last_ts = GST_CLOCK_TIME_NONE; -// context->avg_duration = GST_CLOCK_TIME_NONE; -// context->intra_gap = 0; -#endif - - GST_DEBUG_OBJECT (demux, "Stream number %d", context->index); - - /* try reading the trackentry headers */ - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* track number (unique stream ID) */ - case GST_MATROSKA_ID_TRACKNUMBER:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_ERROR_OBJECT (demux, "Invalid TrackNumber 0"); - ret = GST_FLOW_ERROR; - break; - } else if (!gst_matroska_read_common_tracknumber_unique (&demux->common, - num)) { - GST_ERROR_OBJECT (demux, "TrackNumber %" G_GUINT64_FORMAT - " is not unique", num); - ret = GST_FLOW_ERROR; - break; - } - - GST_DEBUG_OBJECT (demux, "TrackNumber: %" G_GUINT64_FORMAT, num); - context->num = num; - break; - } - /* track UID (unique identifier) */ - case GST_MATROSKA_ID_TRACKUID:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_ERROR_OBJECT (demux, "Invalid TrackUID 0"); - ret = GST_FLOW_ERROR; - break; - } - - GST_DEBUG_OBJECT (demux, "TrackUID: %" G_GUINT64_FORMAT, num); - context->uid = num; - break; - } - - /* track type (video, audio, combined, subtitle, etc.) */ - case GST_MATROSKA_ID_TRACKTYPE:{ - guint64 track_type; - - if ((ret = gst_ebml_read_uint (ebml, &id, &track_type)) != GST_FLOW_OK) { - break; - } - - if (context->type != 0 && context->type != track_type) { - GST_WARNING_OBJECT (demux, - "More than one tracktype defined in a TrackEntry - skipping"); - break; - } else if (track_type < 1 || track_type > 254) { - GST_WARNING_OBJECT (demux, "Invalid TrackType %" G_GUINT64_FORMAT, - track_type); - break; - } - - GST_DEBUG_OBJECT (demux, "TrackType: %" G_GUINT64_FORMAT, track_type); - - /* ok, so we're actually going to reallocate this thing */ - switch (track_type) { - case GST_MATROSKA_TRACK_TYPE_VIDEO: - gst_matroska_track_init_video_context (&context); - break; - case GST_MATROSKA_TRACK_TYPE_AUDIO: - gst_matroska_track_init_audio_context (&context); - break; - case GST_MATROSKA_TRACK_TYPE_SUBTITLE: - gst_matroska_track_init_subtitle_context (&context); - break; - case GST_MATROSKA_TRACK_TYPE_COMPLEX: - case GST_MATROSKA_TRACK_TYPE_LOGO: - case GST_MATROSKA_TRACK_TYPE_BUTTONS: - case GST_MATROSKA_TRACK_TYPE_CONTROL: - default: - GST_WARNING_OBJECT (demux, - "Unknown or unsupported TrackType %" G_GUINT64_FORMAT, - track_type); - context->type = 0; - break; - } - g_ptr_array_index (demux->common.src, demux->common.num_streams - 1) - = context; - break; - } - - /* tracktype specific stuff for video */ - case GST_MATROSKA_ID_TRACKVIDEO:{ - GstMatroskaTrackVideoContext *videocontext; - - DEBUG_ELEMENT_START (demux, ebml, "TrackVideo"); - - if (!gst_matroska_track_init_video_context (&context)) { - GST_WARNING_OBJECT (demux, - "TrackVideo element in non-video track - ignoring track"); - ret = GST_FLOW_ERROR; - break; - } else if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - break; - } - videocontext = (GstMatroskaTrackVideoContext *) context; - g_ptr_array_index (demux->common.src, demux->common.num_streams - 1) - = context; - - while (ret == GST_FLOW_OK && - gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* Should be one level up but some broken muxers write it here. */ - case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackDefaultDuration 0"); - break; - } - - GST_DEBUG_OBJECT (demux, - "TrackDefaultDuration: %" G_GUINT64_FORMAT, num); - context->default_duration = num; - break; - } - - /* video framerate */ - /* NOTE: This one is here only for backward compatibility. - * Use _TRACKDEFAULDURATION one level up. */ - case GST_MATROSKA_ID_VIDEOFRAMERATE:{ - gdouble num; - - if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num <= 0.0) { - GST_WARNING_OBJECT (demux, "Invalid TrackVideoFPS %lf", num); - break; - } - - GST_DEBUG_OBJECT (demux, "TrackVideoFrameRate: %lf", num); - if (context->default_duration == 0) - context->default_duration = - gst_gdouble_to_guint64 ((gdouble) GST_SECOND * (1.0 / num)); - videocontext->default_fps = num; - break; - } - - /* width of the size to display the video at */ - case GST_MATROSKA_ID_VIDEODISPLAYWIDTH:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackVideoDisplayWidth 0"); - break; - } - - GST_DEBUG_OBJECT (demux, - "TrackVideoDisplayWidth: %" G_GUINT64_FORMAT, num); - videocontext->display_width = num; - break; - } - - /* height of the size to display the video at */ - case GST_MATROSKA_ID_VIDEODISPLAYHEIGHT:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackVideoDisplayHeight 0"); - break; - } - - GST_DEBUG_OBJECT (demux, - "TrackVideoDisplayHeight: %" G_GUINT64_FORMAT, num); - videocontext->display_height = num; - break; - } - - /* width of the video in the file */ - case GST_MATROSKA_ID_VIDEOPIXELWIDTH:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackVideoPixelWidth 0"); - break; - } - - GST_DEBUG_OBJECT (demux, - "TrackVideoPixelWidth: %" G_GUINT64_FORMAT, num); - videocontext->pixel_width = num; - break; - } - - /* height of the video in the file */ - case GST_MATROSKA_ID_VIDEOPIXELHEIGHT:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackVideoPixelHeight 0"); - break; - } - - GST_DEBUG_OBJECT (demux, - "TrackVideoPixelHeight: %" G_GUINT64_FORMAT, num); - videocontext->pixel_height = num; - break; - } - - /* whether the video is interlaced */ - case GST_MATROSKA_ID_VIDEOFLAGINTERLACED:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_VIDEOTRACK_INTERLACED; - else - context->flags &= ~GST_MATROSKA_VIDEOTRACK_INTERLACED; - GST_DEBUG_OBJECT (demux, "TrackVideoInterlaced: %d", - (context->flags & GST_MATROSKA_VIDEOTRACK_INTERLACED) ? 1 : - 0); - break; - } - - /* aspect ratio behaviour */ - case GST_MATROSKA_ID_VIDEOASPECTRATIOTYPE:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num != GST_MATROSKA_ASPECT_RATIO_MODE_FREE && - num != GST_MATROSKA_ASPECT_RATIO_MODE_KEEP && - num != GST_MATROSKA_ASPECT_RATIO_MODE_FIXED) { - GST_WARNING_OBJECT (demux, - "Unknown TrackVideoAspectRatioType 0x%x", (guint) num); - break; - } - GST_DEBUG_OBJECT (demux, - "TrackVideoAspectRatioType: %" G_GUINT64_FORMAT, num); - videocontext->asr_mode = num; - break; - } - - /* colourspace (only matters for raw video) fourcc */ - case GST_MATROSKA_ID_VIDEOCOLOURSPACE:{ - guint8 *data; - guint64 datalen; - - if ((ret = - gst_ebml_read_binary (ebml, &id, &data, - &datalen)) != GST_FLOW_OK) - break; - - if (datalen != 4) { - g_free (data); - GST_WARNING_OBJECT (demux, - "Invalid TrackVideoColourSpace length %" G_GUINT64_FORMAT, - datalen); - break; - } - - memcpy (&videocontext->fourcc, data, 4); - GST_DEBUG_OBJECT (demux, - "TrackVideoColourSpace: %" GST_FOURCC_FORMAT, - GST_FOURCC_ARGS (videocontext->fourcc)); - g_free (data); - break; - } - - default: - GST_WARNING_OBJECT (demux, - "Unknown TrackVideo subelement 0x%x - ignoring", id); - /* fall through */ - case GST_MATROSKA_ID_VIDEOSTEREOMODE: - case GST_MATROSKA_ID_VIDEODISPLAYUNIT: - case GST_MATROSKA_ID_VIDEOPIXELCROPBOTTOM: - case GST_MATROSKA_ID_VIDEOPIXELCROPTOP: - case GST_MATROSKA_ID_VIDEOPIXELCROPLEFT: - case GST_MATROSKA_ID_VIDEOPIXELCROPRIGHT: - case GST_MATROSKA_ID_VIDEOGAMMAVALUE: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (demux, ebml, "TrackVideo", ret); - break; - } - - /* tracktype specific stuff for audio */ - case GST_MATROSKA_ID_TRACKAUDIO:{ - GstMatroskaTrackAudioContext *audiocontext; - - DEBUG_ELEMENT_START (demux, ebml, "TrackAudio"); - - if (!gst_matroska_track_init_audio_context (&context)) { - GST_WARNING_OBJECT (demux, - "TrackAudio element in non-audio track - ignoring track"); - ret = GST_FLOW_ERROR; - break; - } - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) - break; - - audiocontext = (GstMatroskaTrackAudioContext *) context; - g_ptr_array_index (demux->common.src, demux->common.num_streams - 1) - = context; - - while (ret == GST_FLOW_OK && - gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* samplerate */ - case GST_MATROSKA_ID_AUDIOSAMPLINGFREQ:{ - gdouble num; - - if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK) - break; - - - if (num <= 0.0) { - GST_WARNING_OBJECT (demux, - "Invalid TrackAudioSamplingFrequency %lf", num); - break; - } - - GST_DEBUG_OBJECT (demux, "TrackAudioSamplingFrequency: %lf", num); - audiocontext->samplerate = num; - break; - } - - /* bitdepth */ - case GST_MATROSKA_ID_AUDIOBITDEPTH:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackAudioBitDepth 0"); - break; - } - - GST_DEBUG_OBJECT (demux, "TrackAudioBitDepth: %" G_GUINT64_FORMAT, - num); - audiocontext->bitdepth = num; - break; - } - - /* channels */ - case GST_MATROSKA_ID_AUDIOCHANNELS:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackAudioChannels 0"); - break; - } - - GST_DEBUG_OBJECT (demux, "TrackAudioChannels: %" G_GUINT64_FORMAT, - num); - audiocontext->channels = num; - break; - } - - default: - GST_WARNING_OBJECT (demux, - "Unknown TrackAudio subelement 0x%x - ignoring", id); - /* fall through */ - case GST_MATROSKA_ID_AUDIOCHANNELPOSITIONS: - case GST_MATROSKA_ID_AUDIOOUTPUTSAMPLINGFREQ: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (demux, ebml, "TrackAudio", ret); - - break; - } - - /* codec identifier */ - case GST_MATROSKA_ID_CODECID:{ - gchar *text; - - if ((ret = gst_ebml_read_ascii (ebml, &id, &text)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (demux, "CodecID: %s", GST_STR_NULL (text)); - context->codec_id = text; - break; - } - - /* codec private data */ - case GST_MATROSKA_ID_CODECPRIVATE:{ - guint8 *data; - guint64 size; - - if ((ret = - gst_ebml_read_binary (ebml, &id, &data, &size)) != GST_FLOW_OK) - break; - - context->codec_priv = data; - context->codec_priv_size = size; - - GST_DEBUG_OBJECT (demux, "CodecPrivate of size %" G_GUINT64_FORMAT, - size); - break; - } - - /* name of the codec */ - case GST_MATROSKA_ID_CODECNAME:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (demux, "CodecName: %s", GST_STR_NULL (text)); - context->codec_name = text; - break; - } - - /* name of this track */ - case GST_MATROSKA_ID_TRACKNAME:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - context->name = text; - GST_DEBUG_OBJECT (demux, "TrackName: %s", GST_STR_NULL (text)); - break; - } - - /* language (matters for audio/subtitles, mostly) */ - case GST_MATROSKA_ID_TRACKLANGUAGE:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - - context->language = text; - - /* fre-ca => fre */ - if (strlen (context->language) >= 4 && context->language[3] == '-') - context->language[3] = '\0'; - - GST_DEBUG_OBJECT (demux, "TrackLanguage: %s", - GST_STR_NULL (context->language)); - break; - } - - /* whether this is actually used */ - case GST_MATROSKA_ID_TRACKFLAGENABLED:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_ENABLED; - else - context->flags &= ~GST_MATROSKA_TRACK_ENABLED; - - GST_DEBUG_OBJECT (demux, "TrackEnabled: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* whether it's the default for this track type */ - case GST_MATROSKA_ID_TRACKFLAGDEFAULT:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_DEFAULT; - else - context->flags &= ~GST_MATROSKA_TRACK_DEFAULT; - - GST_DEBUG_OBJECT (demux, "TrackDefault: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* whether the track must be used during playback */ - case GST_MATROSKA_ID_TRACKFLAGFORCED:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_FORCED; - else - context->flags &= ~GST_MATROSKA_TRACK_FORCED; - - GST_DEBUG_OBJECT (demux, "TrackForced: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* lacing (like MPEG, where blocks don't end/start on frame - * boundaries) */ - case GST_MATROSKA_ID_TRACKFLAGLACING:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_LACING; - else - context->flags &= ~GST_MATROSKA_TRACK_LACING; - - GST_DEBUG_OBJECT (demux, "TrackLacing: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* default length (in time) of one data block in this track */ - case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - - if (num == 0) { - GST_WARNING_OBJECT (demux, "Invalid TrackDefaultDuration 0"); - break; - } - - GST_DEBUG_OBJECT (demux, "TrackDefaultDuration: %" G_GUINT64_FORMAT, - num); - context->default_duration = num; - break; - } - - case GST_MATROSKA_ID_CONTENTENCODINGS:{ - ret = gst_matroska_read_common_read_track_encodings (&demux->common, - ebml, context); - break; - } - - case GST_MATROSKA_ID_TRACKTIMECODESCALE:{ - gdouble num; - - if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num <= 0.0) { - GST_WARNING_OBJECT (demux, "Invalid TrackTimeCodeScale %lf", num); - break; - } - - GST_DEBUG_OBJECT (demux, "TrackTimeCodeScale: %lf", num); - context->timecodescale = num; - break; - } - - default: - GST_WARNING ("Unknown TrackEntry subelement 0x%x - ignoring", id); - /* pass-through */ - - /* we ignore these because they're nothing useful (i.e. crap) - * or simply not implemented yet. */ - case GST_MATROSKA_ID_TRACKMINCACHE: - case GST_MATROSKA_ID_TRACKMAXCACHE: - case GST_MATROSKA_ID_MAXBLOCKADDITIONID: - case GST_MATROSKA_ID_TRACKATTACHMENTLINK: - case GST_MATROSKA_ID_TRACKOVERLAY: - case GST_MATROSKA_ID_TRACKTRANSLATE: - case GST_MATROSKA_ID_TRACKOFFSET: - case GST_MATROSKA_ID_CODECSETTINGS: - case GST_MATROSKA_ID_CODECINFOURL: - case GST_MATROSKA_ID_CODECDOWNLOADURL: - case GST_MATROSKA_ID_CODECDECODEALL: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (demux, ebml, "TrackEntry", ret); - - /* Decode codec private data if necessary */ - if (context->encodings && context->encodings->len > 0 && context->codec_priv - && context->codec_priv_size > 0) { - if (!gst_matroska_decode_data (context->encodings, - &context->codec_priv, &context->codec_priv_size, - GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA, TRUE)) { - GST_WARNING_OBJECT (demux, "Decoding codec private data failed"); - ret = GST_FLOW_ERROR; - } - } - - if (context->type == 0 || context->codec_id == NULL || (ret != GST_FLOW_OK - && ret != GST_FLOW_UNEXPECTED)) { - if (ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED) - GST_WARNING_OBJECT (ebml, "Unknown stream/codec in track entry header"); - - demux->common.num_streams--; - g_ptr_array_remove_index (demux->common.src, demux->common.num_streams); - g_assert (demux->common.src->len == demux->common.num_streams); - if (context) { - gst_matroska_track_free (context); - } - - return ret; - } - - /* now create the GStreamer connectivity */ - switch (context->type) { - case GST_MATROSKA_TRACK_TYPE_VIDEO:{ - GstMatroskaTrackVideoContext *videocontext = - (GstMatroskaTrackVideoContext *) context; - - padname = g_strdup_printf ("video_%02d", demux->num_v_streams++); - templ = gst_element_class_get_pad_template (klass, "video_%02d"); - caps = gst_matroska_demux_video_caps (videocontext, - context->codec_id, (guint8 *) context->codec_priv, - context->codec_priv_size, &codec, &riff_fourcc); - - if (codec) { - list = gst_tag_list_new (); - gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, - GST_TAG_VIDEO_CODEC, codec, NULL); - g_free (codec); - } - break; - } - - case GST_MATROSKA_TRACK_TYPE_AUDIO:{ - GstMatroskaTrackAudioContext *audiocontext = - (GstMatroskaTrackAudioContext *) context; - - padname = g_strdup_printf ("audio_%02d", demux->num_a_streams++); - templ = gst_element_class_get_pad_template (klass, "audio_%02d"); - caps = gst_matroska_demux_audio_caps (audiocontext, - context->codec_id, context->codec_priv, context->codec_priv_size, - &codec, &riff_audio_fmt); - - if (codec) { - list = gst_tag_list_new (); - gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, - GST_TAG_AUDIO_CODEC, codec, NULL); - g_free (codec); - } - break; - } - - case GST_MATROSKA_TRACK_TYPE_SUBTITLE:{ - GstMatroskaTrackSubtitleContext *subtitlecontext = - (GstMatroskaTrackSubtitleContext *) context; - - padname = g_strdup_printf ("subtitle_%02d", demux->num_t_streams++); - templ = gst_element_class_get_pad_template (klass, "subtitle_%02d"); - caps = gst_matroska_demux_subtitle_caps (subtitlecontext, - context->codec_id, context->codec_priv, context->codec_priv_size); - break; - } - - case GST_MATROSKA_TRACK_TYPE_COMPLEX: - case GST_MATROSKA_TRACK_TYPE_LOGO: - case GST_MATROSKA_TRACK_TYPE_BUTTONS: - case GST_MATROSKA_TRACK_TYPE_CONTROL: - default: - /* we should already have quit by now */ - g_assert_not_reached (); - } - - if ((context->language == NULL || *context->language == '\0') && - (context->type == GST_MATROSKA_TRACK_TYPE_AUDIO || - context->type == GST_MATROSKA_TRACK_TYPE_SUBTITLE)) { - GST_LOG ("stream %d: language=eng (assuming default)", context->index); - context->language = g_strdup ("eng"); - } - - if (context->language) { - const gchar *lang; - - if (!list) - list = gst_tag_list_new (); - - /* Matroska contains ISO 639-2B codes, we want ISO 639-1 */ - lang = gst_tag_get_language_code (context->language); - gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, - GST_TAG_LANGUAGE_CODE, (lang) ? lang : context->language, NULL); - } - - if (caps == NULL) { - GST_WARNING_OBJECT (demux, "could not determine caps for stream with " - "codec_id='%s'", context->codec_id); - switch (context->type) { - case GST_MATROSKA_TRACK_TYPE_VIDEO: - caps = gst_caps_new_simple ("video/x-unknown", NULL); - break; - case GST_MATROSKA_TRACK_TYPE_AUDIO: - caps = gst_caps_new_simple ("audio/x-unknown", NULL); - break; - case GST_MATROSKA_TRACK_TYPE_SUBTITLE: - caps = gst_caps_new_simple ("application/x-subtitle-unknown", NULL); - break; - case GST_MATROSKA_TRACK_TYPE_COMPLEX: - default: - caps = gst_caps_new_simple ("application/x-matroska-unknown", NULL); - break; - } - gst_caps_set_simple (caps, "codec-id", G_TYPE_STRING, context->codec_id, - NULL); - - /* add any unrecognised riff fourcc / audio format, but after codec-id */ - if (context->type == GST_MATROSKA_TRACK_TYPE_AUDIO && riff_audio_fmt != 0) - gst_caps_set_simple (caps, "format", G_TYPE_INT, riff_audio_fmt, NULL); - else if (context->type == GST_MATROSKA_TRACK_TYPE_VIDEO && riff_fourcc != 0) - gst_caps_set_simple (caps, "fourcc", GST_TYPE_FOURCC, riff_fourcc, NULL); - } - - /* the pad in here */ - context->pad = gst_pad_new_from_template (templ, padname); - context->caps = caps; - - gst_pad_set_event_function (context->pad, - GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_src_event)); - gst_pad_set_query_type_function (context->pad, - GST_DEBUG_FUNCPTR (gst_matroska_demux_get_src_query_types)); - gst_pad_set_query_function (context->pad, - GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_src_query)); - - GST_INFO_OBJECT (demux, "Adding pad '%s' with caps %" GST_PTR_FORMAT, - padname, caps); - - context->pending_tags = list; - - gst_pad_set_element_private (context->pad, context); - - gst_pad_use_fixed_caps (context->pad); - gst_pad_set_caps (context->pad, context->caps); - gst_pad_set_active (context->pad, TRUE); - gst_element_add_pad (GST_ELEMENT (demux), context->pad); - - g_free (padname); - -#ifdef MKV_DEMUX_MODIFICATION - if (context->type == GST_MATROSKA_TRACK_TYPE_AUDIO) - demux->audio_stream = context; - if (context->type == GST_MATROSKA_TRACK_TYPE_VIDEO) - demux->video = TRUE; -#endif - - /* tadaah! */ - return ret; -} - -static const GstQueryType * -gst_matroska_demux_get_src_query_types (GstPad * pad) -{ - static const GstQueryType query_types[] = { - GST_QUERY_POSITION, - GST_QUERY_DURATION, - GST_QUERY_SEEKING, - 0 - }; - - return query_types; -} - -static gboolean -gst_matroska_demux_query (GstMatroskaDemux * demux, GstPad * pad, - GstQuery * query) -{ - gboolean res = FALSE; - GstMatroskaTrackContext *context = NULL; - - if (pad) { - context = gst_pad_get_element_private (pad); - } - - switch (GST_QUERY_TYPE (query)) { - case GST_QUERY_POSITION: - { - GstFormat format; - - gst_query_parse_position (query, &format, NULL); - - if (format == GST_FORMAT_TIME) { - GST_OBJECT_LOCK (demux); - if (context) - gst_query_set_position (query, GST_FORMAT_TIME, - MAX (context->pos, demux->stream_start_time) - - demux->stream_start_time); - else - gst_query_set_position (query, GST_FORMAT_TIME, - MAX (demux->common.segment.last_stop, demux->stream_start_time) - - demux->stream_start_time); - GST_OBJECT_UNLOCK (demux); - } else if (format == GST_FORMAT_DEFAULT && context - && context->default_duration) { - GST_OBJECT_LOCK (demux); - gst_query_set_position (query, GST_FORMAT_DEFAULT, - context->pos / context->default_duration); - GST_OBJECT_UNLOCK (demux); - } else { - GST_DEBUG_OBJECT (demux, - "only position query in TIME and DEFAULT format is supported"); - } - - res = TRUE; - break; - } - case GST_QUERY_DURATION: - { - GstFormat format; - - gst_query_parse_duration (query, &format, NULL); - - if (format == GST_FORMAT_TIME) { - GST_OBJECT_LOCK (demux); - gst_query_set_duration (query, GST_FORMAT_TIME, - demux->common.segment.duration); - GST_OBJECT_UNLOCK (demux); - } else if (format == GST_FORMAT_DEFAULT && context - && context->default_duration) { - GST_OBJECT_LOCK (demux); - gst_query_set_duration (query, GST_FORMAT_DEFAULT, - demux->common.segment.duration / context->default_duration); - GST_OBJECT_UNLOCK (demux); - } else { - GST_DEBUG_OBJECT (demux, - "only duration query in TIME and DEFAULT format is supported"); - } - - res = TRUE; - break; - } - - case GST_QUERY_SEEKING: - { - GstFormat fmt; - - gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL); - GST_OBJECT_LOCK (demux); - if (fmt == GST_FORMAT_TIME) { - gboolean seekable; - - if (demux->streaming) { - /* assuming we'll be able to get an index ... */ - seekable = demux->seekable; - } else { - seekable = TRUE; - } - - gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, - 0, demux->common.segment.duration); - res = TRUE; - } - GST_OBJECT_UNLOCK (demux); - break; - } - default: - res = gst_pad_query_default (pad, query); - break; - } - - return res; -} - -static gboolean -gst_matroska_demux_element_query (GstElement * element, GstQuery * query) -{ - return gst_matroska_demux_query (GST_MATROSKA_DEMUX (element), NULL, query); -} - -static gboolean -gst_matroska_demux_handle_src_query (GstPad * pad, GstQuery * query) -{ - gboolean ret; - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (gst_pad_get_parent (pad)); - - ret = gst_matroska_demux_query (demux, pad, query); - - gst_object_unref (demux); - - return ret; -} - -/* returns FALSE if there are no pads to deliver event to, - * otherwise TRUE (whatever the outcome of event sending), - * takes ownership of the passed event! */ -static gboolean -gst_matroska_demux_send_event (GstMatroskaDemux * demux, GstEvent * event) -{ - gboolean is_newsegment; - gboolean ret = FALSE; - gint i; - - g_return_val_if_fail (event != NULL, FALSE); - - GST_DEBUG_OBJECT (demux, "Sending event of type %s to all source pads", - GST_EVENT_TYPE_NAME (event)); - - is_newsegment = (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT); - - g_assert (demux->common.src->len == demux->common.num_streams); - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *stream; - - stream = g_ptr_array_index (demux->common.src, i); - gst_event_ref (event); - gst_pad_push_event (stream->pad, event); - ret = TRUE; - - /* FIXME: send global tags before stream tags */ - if (G_UNLIKELY (is_newsegment && stream->pending_tags != NULL)) { - GST_DEBUG_OBJECT (demux, "Sending pending_tags %p for pad %s:%s : %" - GST_PTR_FORMAT, stream->pending_tags, - GST_DEBUG_PAD_NAME (stream->pad), stream->pending_tags); - gst_element_found_tags_for_pad (GST_ELEMENT (demux), stream->pad, - stream->pending_tags); - stream->pending_tags = NULL; - } - } - - if (G_UNLIKELY (is_newsegment && demux->common.global_tags != NULL)) { - gst_tag_list_add (demux->common.global_tags, GST_TAG_MERGE_REPLACE, - GST_TAG_CONTAINER_FORMAT, "Matroska", NULL); - GST_DEBUG_OBJECT (demux, "Sending global_tags %p : %" GST_PTR_FORMAT, - demux->common.global_tags, demux->common.global_tags); - gst_element_found_tags (GST_ELEMENT (demux), demux->common.global_tags); - demux->common.global_tags = NULL; - } - - gst_event_unref (event); - return ret; -} - -static gboolean -gst_matroska_demux_element_send_event (GstElement * element, GstEvent * event) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element); - gboolean res; - - g_return_val_if_fail (event != NULL, FALSE); - - if (GST_EVENT_TYPE (event) == GST_EVENT_SEEK) { - res = gst_matroska_demux_handle_seek_event (demux, NULL, event); - } else { - GST_WARNING_OBJECT (demux, "Unhandled event of type %s", - GST_EVENT_TYPE_NAME (event)); - res = FALSE; - } - gst_event_unref (event); - return res; -} - -static gboolean -gst_matroska_demux_move_to_entry (GstMatroskaDemux * demux, - GstMatroskaIndex * entry, gboolean reset) -{ - gint i; - - GST_OBJECT_LOCK (demux); - - /* seek (relative to matroska segment) */ - /* position might be invalid; will error when streaming resumes ... */ - demux->common.offset = entry->pos + demux->common.ebml_segment_start; - - GST_DEBUG_OBJECT (demux, "Seeked to offset %" G_GUINT64_FORMAT ", block %d, " - "time %" GST_TIME_FORMAT, entry->pos + demux->common.ebml_segment_start, - entry->block, GST_TIME_ARGS (entry->time)); - - /* update the time */ - gst_matroska_read_common_reset_streams (&demux->common, entry->time, TRUE); - demux->common.segment.last_stop = entry->time; - demux->seek_block = entry->block; - demux->seek_first = TRUE; - demux->last_stop_end = GST_CLOCK_TIME_NONE; - - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *stream = g_ptr_array_index (demux->common.src, i); - - if (reset) { - stream->to_offset = G_MAXINT64; - } else { - if (stream->from_offset != -1) - stream->to_offset = stream->from_offset; - } - stream->from_offset = -1; - } - - GST_OBJECT_UNLOCK (demux); - - return TRUE; -} - -static gint -gst_matroska_cluster_compare (gint64 * i1, gint64 * i2) -{ - if (*i1 < *i2) - return -1; - else if (*i1 > *i2) - return 1; - else - return 0; -} - -/* searches for a cluster start from @pos, - * return GST_FLOW_OK and cluster position in @pos if found */ -static GstFlowReturn -gst_matroska_demux_search_cluster (GstMatroskaDemux * demux, gint64 * pos) -{ - gint64 newpos = *pos; - gint64 orig_offset; - GstFlowReturn ret = GST_FLOW_OK; - const guint chunk = 64 * 1024; - GstBuffer *buf = NULL; - guint64 length; - guint32 id; - guint needed; - - orig_offset = demux->common.offset; - - GST_LOG_OBJECT (demux, "searching cluster following offset %" G_GINT64_FORMAT, - *pos); - - if (demux->clusters) { - gint64 *cpos; - - cpos = gst_util_array_binary_search (demux->clusters->data, - demux->clusters->len, sizeof (gint64), - (GCompareDataFunc) gst_matroska_cluster_compare, - GST_SEARCH_MODE_AFTER, pos, NULL); - /* sanity check */ - if (cpos) { - GST_DEBUG_OBJECT (demux, - "cluster reported at offset %" G_GINT64_FORMAT, *cpos); - demux->common.offset = *cpos; - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret == GST_FLOW_OK && id == GST_MATROSKA_ID_CLUSTER) { - newpos = *cpos; - goto exit; - } - } - } - - /* read in at newpos and scan for ebml cluster id */ - while (1) { - GstByteReader reader; - gint cluster_pos; - - if (buf != NULL) { - gst_buffer_unref (buf); - buf = NULL; - } - ret = gst_pad_pull_range (demux->common.sinkpad, newpos, chunk, &buf); - if (ret != GST_FLOW_OK) - break; - GST_DEBUG_OBJECT (demux, "read buffer size %d at offset %" G_GINT64_FORMAT, - GST_BUFFER_SIZE (buf), newpos); - gst_byte_reader_init_from_buffer (&reader, buf); - resume: - cluster_pos = gst_byte_reader_masked_scan_uint32 (&reader, 0xffffffff, - GST_MATROSKA_ID_CLUSTER, 0, gst_byte_reader_get_remaining (&reader)); - if (cluster_pos >= 0) { - newpos += cluster_pos; - /* prepare resuming at next byte */ - gst_byte_reader_skip (&reader, cluster_pos + 1); - GST_DEBUG_OBJECT (demux, - "found cluster ebml id at offset %" G_GINT64_FORMAT, newpos); - /* extra checks whether we really sync'ed to a cluster: - * - either it is the first and only cluster - * - either there is a cluster after this one - * - either cluster length is undefined - */ - /* ok if first cluster (there may not a subsequent one) */ - if (newpos == demux->first_cluster_offset) { - GST_DEBUG_OBJECT (demux, "cluster is first cluster -> OK"); - break; - } - demux->common.offset = newpos; - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret != GST_FLOW_OK) { - GST_DEBUG_OBJECT (demux, "need more data -> continue"); - continue; - } - g_assert (id == GST_MATROSKA_ID_CLUSTER); - GST_DEBUG_OBJECT (demux, "cluster size %" G_GUINT64_FORMAT ", prefix %d", - length, needed); - /* ok if undefined length or first cluster */ - if (length == GST_EBML_SIZE_UNKNOWN || length == G_MAXUINT64) { - GST_DEBUG_OBJECT (demux, "cluster has undefined length -> OK"); - break; - } - /* skip cluster */ - demux->common.offset += length + needed; - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret != GST_FLOW_OK) - goto resume; - GST_DEBUG_OBJECT (demux, "next element is %scluster", - id == GST_MATROSKA_ID_CLUSTER ? "" : "not "); - if (id == GST_MATROSKA_ID_CLUSTER) - break; - /* not ok, resume */ - goto resume; - } else { - /* partial cluster id may have been in tail of buffer */ - newpos += MAX (gst_byte_reader_get_remaining (&reader), 4) - 3; - } - } - - if (buf) { - gst_buffer_unref (buf); - buf = NULL; - } - -exit: - demux->common.offset = orig_offset; - *pos = newpos; - return ret; -} - -/* bisect and scan through file for cluster starting before @time, - * returns fake index entry with corresponding info on cluster */ -static GstMatroskaIndex * -gst_matroska_demux_search_pos (GstMatroskaDemux * demux, GstClockTime time) -{ - GstMatroskaIndex *entry = NULL; - GstMatroskaReadState current_state; - GstClockTime otime, prev_cluster_time, current_cluster_time, cluster_time; - gint64 opos, newpos, startpos = 0, current_offset; - gint64 prev_cluster_offset = -1, current_cluster_offset, cluster_offset; - const guint chunk = 64 * 1024; - GstFlowReturn ret; - guint64 length; - guint32 id; - guint needed; - - /* (under)estimate new position, resync using cluster ebml id, - * and scan forward to appropriate cluster - * (and re-estimate if need to go backward) */ - - prev_cluster_time = GST_CLOCK_TIME_NONE; - - /* store some current state */ - current_state = demux->common.state; - g_return_val_if_fail (current_state == GST_MATROSKA_READ_STATE_DATA, NULL); - - current_cluster_offset = demux->cluster_offset; - current_cluster_time = demux->cluster_time; - current_offset = demux->common.offset; - - demux->common.state = GST_MATROSKA_READ_STATE_SCANNING; - - /* estimate using start and current position */ - GST_OBJECT_LOCK (demux); - opos = demux->common.offset - demux->common.ebml_segment_start; - otime = demux->common.segment.last_stop; - GST_OBJECT_UNLOCK (demux); - - /* sanitize */ - time = MAX (time, demux->stream_start_time); - - /* avoid division by zero in first estimation below */ - if (otime <= demux->stream_start_time) - otime = time; - -retry: - GST_LOG_OBJECT (demux, - "opos: %" G_GUINT64_FORMAT ", otime: %" GST_TIME_FORMAT ", %" - GST_TIME_FORMAT " in stream time (start %" GST_TIME_FORMAT "), time %" - GST_TIME_FORMAT, opos, GST_TIME_ARGS (otime), - GST_TIME_ARGS (otime - demux->stream_start_time), - GST_TIME_ARGS (demux->stream_start_time), GST_TIME_ARGS (time)); - newpos = - gst_util_uint64_scale (opos - demux->common.ebml_segment_start, - time - demux->stream_start_time, - otime - demux->stream_start_time) - chunk; - if (newpos < 0) - newpos = 0; - /* favour undershoot */ - newpos = newpos * 90 / 100; - newpos += demux->common.ebml_segment_start; - - GST_DEBUG_OBJECT (demux, - "estimated offset for %" GST_TIME_FORMAT ": %" G_GINT64_FORMAT, - GST_TIME_ARGS (time), newpos); - - /* and at least start scanning before previous scan start to avoid looping */ - startpos = startpos * 90 / 100; - if (startpos && startpos < newpos) - newpos = startpos; - - /* read in at newpos and scan for ebml cluster id */ - startpos = newpos; - while (1) { - - ret = gst_matroska_demux_search_cluster (demux, &newpos); - if (ret == GST_FLOW_UNEXPECTED) { - /* heuristic HACK */ - newpos = startpos * 80 / 100; - GST_DEBUG_OBJECT (demux, "EOS; " - "new estimated offset for %" GST_TIME_FORMAT ": %" G_GINT64_FORMAT, - GST_TIME_ARGS (time), newpos); - startpos = newpos; - continue; - } else if (ret != GST_FLOW_OK) { - goto exit; - } else { - break; - } - } - - /* then start scanning and parsing for cluster time, - * re-estimate if overshoot, otherwise next cluster and so on */ - demux->common.offset = newpos; - demux->cluster_time = cluster_time = GST_CLOCK_TIME_NONE; - while (1) { - guint64 cluster_size = 0; - - /* peek and parse some elements */ - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret != GST_FLOW_OK) - goto error; - GST_LOG_OBJECT (demux, "Offset %" G_GUINT64_FORMAT ", Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", needed %d", demux->common.offset, id, - length, needed); - ret = gst_matroska_demux_parse_id (demux, id, length, needed); - if (ret != GST_FLOW_OK) - goto error; - - if (id == GST_MATROSKA_ID_CLUSTER) { - cluster_time = GST_CLOCK_TIME_NONE; - if (length == G_MAXUINT64) - cluster_size = 0; - else - cluster_size = length + needed; - } - if (demux->cluster_time != GST_CLOCK_TIME_NONE && - cluster_time == GST_CLOCK_TIME_NONE) { - cluster_time = demux->cluster_time * demux->common.time_scale; - cluster_offset = demux->cluster_offset; - GST_DEBUG_OBJECT (demux, "found cluster at offset %" G_GINT64_FORMAT - " with time %" GST_TIME_FORMAT, cluster_offset, - GST_TIME_ARGS (cluster_time)); - if (cluster_time > time) { - GST_DEBUG_OBJECT (demux, "overshot target"); - /* cluster overshoots */ - if (cluster_offset == demux->first_cluster_offset) { - /* but no prev one */ - GST_DEBUG_OBJECT (demux, "but using first cluster anyway"); - prev_cluster_time = cluster_time; - prev_cluster_offset = cluster_offset; - break; - } - if (prev_cluster_time != GST_CLOCK_TIME_NONE) { - /* prev cluster did not overshoot, so prev cluster is target */ - break; - } else { - /* re-estimate using this new position info */ - opos = cluster_offset; - otime = cluster_time; - goto retry; - } - } else { - /* cluster undershoots, goto next one */ - prev_cluster_time = cluster_time; - prev_cluster_offset = cluster_offset; - /* skip cluster if length is defined, - * otherwise will be skippingly parsed into */ - if (cluster_size) { - GST_DEBUG_OBJECT (demux, "skipping to next cluster"); - demux->common.offset = cluster_offset + cluster_size; - demux->cluster_time = GST_CLOCK_TIME_NONE; - } else { - GST_DEBUG_OBJECT (demux, "parsing/skipping cluster elements"); - } - } - } - continue; - - error: - if (ret == GST_FLOW_UNEXPECTED) { - if (prev_cluster_time != GST_CLOCK_TIME_NONE) - break; - } - goto exit; - } - - entry = g_new0 (GstMatroskaIndex, 1); - entry->time = prev_cluster_time; - entry->pos = prev_cluster_offset - demux->common.ebml_segment_start; - GST_DEBUG_OBJECT (demux, "simulated index entry; time %" GST_TIME_FORMAT - ", pos %" G_GUINT64_FORMAT, GST_TIME_ARGS (entry->time), entry->pos); - -exit: - - /* restore some state */ - demux->cluster_offset = current_cluster_offset; - demux->cluster_time = current_cluster_time; - demux->common.offset = current_offset; - demux->common.state = current_state; - - return entry; -} - -static gboolean -gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux, - GstPad * pad, GstEvent * event) -{ - GstMatroskaIndex *entry = NULL; - GstMatroskaIndex scan_entry; -#ifdef MKV_DEMUX_MODIFICATION - GstMatroskaIndex *next_entry = NULL; -#endif - GstSeekFlags flags; - GstSeekType cur_type, stop_type; - GstFormat format; - gboolean flush, keyunit; - gdouble rate; - gint64 cur, stop; - GstMatroskaTrackContext *track = NULL; - GstSegment seeksegment = { 0, }; - gboolean update = TRUE; - - if (pad) - track = gst_pad_get_element_private (pad); - - gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur, - &stop_type, &stop); - - /* we can only seek on time */ - if (format != GST_FORMAT_TIME) { - GST_DEBUG_OBJECT (demux, "Can only seek on TIME"); - return FALSE; - } - -#ifndef MKV_DEMUX_MODIFICATION - /* cannot yet do backwards playback */ - if (rate <= 0.0) { - GST_DEBUG_OBJECT (demux, "Can only seek with positive rate"); - return FALSE; - } -#endif - - /* copy segment, we need this because we still need the old - * segment when we close the current segment. */ - memcpy (&seeksegment, &demux->common.segment, sizeof (GstSegment)); - -#ifdef MKV_DEMUX_MODIFICATION - gst_segment_set_last_stop (&seeksegment, GST_FORMAT_TIME, cur); -#endif - - /* pull mode without index means that the actual duration is not known, - * we might be playing a file that's still being recorded - * so, invalidate our current duration, which is only a moving target, - * and should not be used to clamp anything */ - if (!demux->streaming && !demux->common.index && - demux->invalid_duration) { - gst_segment_set_duration (&seeksegment, GST_FORMAT_TIME, - GST_CLOCK_TIME_NONE); - } - - if (event) { - GST_DEBUG_OBJECT (demux, "configuring seek"); - gst_segment_set_seek (&seeksegment, rate, format, flags, - cur_type, cur, stop_type, stop, &update); - /* compensate for clip start time */ - if (GST_CLOCK_TIME_IS_VALID (demux->stream_start_time)) { - seeksegment.last_stop += demux->stream_start_time; - seeksegment.start += demux->stream_start_time; - if (GST_CLOCK_TIME_IS_VALID (seeksegment.stop)) - seeksegment.stop += demux->stream_start_time; - /* note that time should stay at indicated position */ - } - } - - /* restore segment duration (if any effect), - * would be determined again when parsing, but anyway ... */ -#ifndef MKV_DEMUX_MODIFICATION - gst_segment_set_duration (&seeksegment, GST_FORMAT_TIME, - demux->common.segment.duration); -#endif - - flush = ! !(flags & GST_SEEK_FLAG_FLUSH); - keyunit = ! !(flags & GST_SEEK_FLAG_KEY_UNIT); - - GST_DEBUG_OBJECT (demux, "New segment %" GST_SEGMENT_FORMAT, &seeksegment); - -#ifndef MKV_DEMUX_MODIFICATION - if (!update) { - /* only have to update some segment, - * but also still have to honour flush and so on */ - GST_DEBUG_OBJECT (demux, "... no update"); - /* bad goto, bad ... */ - goto next; - } -#endif - - /* check sanity before we start flushing and all that */ - GST_OBJECT_LOCK (demux); - track = gst_matroska_read_common_get_seek_track (&demux->common, track); - if ((entry = gst_matroska_read_common_do_index_seek (&demux->common, track, - seeksegment.last_stop, &demux->seek_index, &demux->seek_entry)) == - NULL) { - /* pull mode without index can scan later on */ - if (demux->streaming) { - GST_DEBUG_OBJECT (demux, "No matching seek entry in index"); - GST_OBJECT_UNLOCK (demux); - return FALSE; - } -#ifdef MKV_DEMUX_MODIFICATION - } else { - GST_INFO_OBJECT (demux, "Entry Details are"); - GST_INFO_OBJECT (demux, "entry->block %u", (guint)entry->block); - GST_INFO_OBJECT (demux, "entry->pos %"G_GUINT64_FORMAT, entry->pos); - GST_INFO_OBJECT (demux, "entry->time %"GST_TIME_FORMAT, GST_TIME_ARGS(entry->time)); - GST_INFO_OBJECT (demux, "entry->track %u", (guint)entry->track); -#endif - } - -#ifdef MKV_DEMUX_MODIFICATION - if (entry == NULL) { - GST_OBJECT_UNLOCK (demux); - return FALSE; - } - - if (seeksegment.rate < 0.0) { - GST_INFO("Current Index is %"GST_TIME_FORMAT, GST_TIME_ARGS(entry->time)); - next_entry = gst_matroska_demux_get_next_index (demux, track, entry); - if (next_entry == NULL) { - GST_ERROR ("Entry Not found...."); - GST_OBJECT_UNLOCK (demux); - return FALSE; - } - GST_INFO("Next Index is %"GST_TIME_FORMAT, GST_TIME_ARGS(next_entry->time)); - } -#endif - - GST_DEBUG_OBJECT (demux, "Seek position looks sane"); - GST_OBJECT_UNLOCK (demux); - - if (demux->streaming) { - /* need to seek to cluster start to pick up cluster time */ - /* upstream takes care of flushing and all that - * ... and newsegment event handling takes care of the rest */ - return perform_seek_to_offset (demux, - entry->pos + demux->common.ebml_segment_start); - } - -#ifdef MKV_DEMUX_MODIFICATION - keyunit = TRUE;//intentionally making it as true. need to check -#endif - -next: - if (flush) { - GST_DEBUG_OBJECT (demux, "Starting flush"); - gst_pad_push_event (demux->common.sinkpad, gst_event_new_flush_start ()); - gst_matroska_demux_send_event (demux, gst_event_new_flush_start ()); - } else { - GST_DEBUG_OBJECT (demux, "Non-flushing seek, pausing task"); - gst_pad_pause_task (demux->common.sinkpad); - } - -#ifndef MKV_DEMUX_MODIFICATION - /* ouch */ - if (!update) - goto exit; -#endif - - /* now grab the stream lock so that streaming cannot continue, for - * non flushing seeks when the element is in PAUSED this could block - * forever. */ - GST_DEBUG_OBJECT (demux, "Waiting for streaming to stop"); - GST_PAD_STREAM_LOCK (demux->common.sinkpad); - - /* pull mode without index can do some scanning */ - if (!demux->streaming && !entry) { - /* need to stop flushing upstream as we need it next */ - if (flush) - gst_pad_push_event (demux->common.sinkpad, gst_event_new_flush_stop ()); - entry = gst_matroska_demux_search_pos (demux, seeksegment.last_stop); - /* keep local copy */ - if (entry) { - scan_entry = *entry; - g_free (entry); - entry = &scan_entry; - } else { - GST_DEBUG_OBJECT (demux, "Scan failed to find matching position"); - if (flush) - gst_matroska_demux_send_event (demux, gst_event_new_flush_stop ()); - goto seek_error; - } - } - - if (keyunit) { - GST_DEBUG_OBJECT (demux, "seek to key unit, adjusting segment start to %" - GST_TIME_FORMAT, GST_TIME_ARGS (entry->time)); -#ifdef MKV_DEMUX_MODIFICATION - if (seeksegment.stop == -1) { - seeksegment.stop = seeksegment.duration; - } - if (seeksegment.rate > 0.0) { - seeksegment.start = cur; - seeksegment.time = cur; - seeksegment.last_stop = cur; - seeksegment.stop = seeksegment.duration; - } else if (seeksegment.rate < 0.0) {/* Reverse trick play */ - seeksegment.start = 0.0; - seeksegment.stop = next_entry->time; - seeksegment.last_stop = cur + GST_MSECOND; - seeksegment.time = 0.0; - demux->next_keyframe_ts = cur; - GST_INFO("next_keyframe_ts %"GST_TIME_FORMAT, GST_TIME_ARGS(demux->next_keyframe_ts)); - } -#else - seeksegment.start = MAX (entry->time, demux->stream_start_time); - seeksegment.last_stop = seeksegment.start; - seeksegment.time = seeksegment.start - demux->stream_start_time; -#endif - } - -exit: - if (flush) { - GST_DEBUG_OBJECT (demux, "Stopping flush"); - gst_pad_push_event (demux->common.sinkpad, gst_event_new_flush_stop ()); - gst_matroska_demux_send_event (demux, gst_event_new_flush_stop ()); -#ifdef MKV_DEMUX_MODIFICATION - } else if (demux->segment_running) { -#else - } else if (demux->segment_running && update) { -#endif - GST_DEBUG_OBJECT (demux, "Closing currently running segment"); - - GST_OBJECT_LOCK (demux); - if (demux->close_segment) - gst_event_unref (demux->close_segment); - - demux->close_segment = gst_event_new_new_segment (TRUE, - demux->common.segment.rate, GST_FORMAT_TIME, - demux->common.segment.start, demux->common.segment.last_stop, - demux->common.segment.time); - GST_OBJECT_UNLOCK (demux); - } - - GST_OBJECT_LOCK (demux); - /* now update the real segment info */ - GST_DEBUG_OBJECT (demux, "Committing new seek segment"); - memcpy (&demux->common.segment, &seeksegment, sizeof (GstSegment)); - GST_OBJECT_UNLOCK (demux); - - /* update some (segment) state */ -#ifdef MKV_DEMUX_MODIFICATION - if (!gst_matroska_demux_move_to_entry (demux, entry, TRUE)) -#else - if (update && !gst_matroska_demux_move_to_entry (demux, entry, TRUE)) -#endif - goto seek_error; - - /* notify start of new segment */ - if (demux->common.segment.flags & GST_SEEK_FLAG_SEGMENT) { - GstMessage *msg; - - msg = gst_message_new_segment_start (GST_OBJECT (demux), - GST_FORMAT_TIME, demux->common.segment.start); - gst_element_post_message (GST_ELEMENT (demux), msg); - } - - GST_OBJECT_LOCK (demux); - if (demux->new_segment) - gst_event_unref (demux->new_segment); -#ifdef MKV_DEMUX_MODIFICATION - if (demux->common.segment.rate > 0.0) { - demux->new_segment = gst_event_new_new_segment_full (FALSE, - demux->common.segment.rate, demux->common.segment.applied_rate, - demux->common.segment.format, seeksegment.last_stop, - demux->common.segment.stop, demux->common.segment.time); - - } else if (demux->common.segment.rate < 0.0) { - /* Reverse trick play */ - demux->new_segment = gst_event_new_new_segment_full (FALSE, - demux->common.segment.rate, demux->common.segment.applied_rate, - demux->common.segment.format, demux->common.segment.start, - seeksegment.last_stop, demux->common.segment.time); - } -#else - demux->new_segment = gst_event_new_new_segment_full (!update, - demux->common.segment.rate, demux->common.segment.applied_rate, - demux->common.segment.format, demux->common.segment.start, - demux->common.segment.stop, demux->common.segment.time); -#endif - GST_OBJECT_UNLOCK (demux); - -#ifdef MKV_DEMUX_MODIFICATION - if (demux->common.segment.rate > 0.0) { - demux->common.segment.last_stop = entry->time; - } else if (demux->common.segment.rate < 0.0) { - demux->common.segment.last_stop = next_entry->time; - } -#endif - - /* restart our task since it might have been stopped when we did the - * flush. */ - demux->segment_running = TRUE; - gst_pad_start_task (demux->common.sinkpad, - (GstTaskFunction) gst_matroska_demux_loop, demux->common.sinkpad); - -#ifdef MKV_DEMUX_MODIFICATION - while (!g_queue_is_empty (track->queue)) { - GstBuffer* buf = g_queue_pop_head (track->queue); - gst_buffer_unref (buf); - } -#endif - - /* streaming can continue now */ - GST_PAD_STREAM_UNLOCK (demux->common.sinkpad); - - return TRUE; - -seek_error: - { - GST_PAD_STREAM_UNLOCK (demux->common.sinkpad); - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), ("Got a seek error")); - return FALSE; - } -} - -/* - * Handle whether we can perform the seek event or if we have to let the chain - * function handle seeks to build the seek indexes first. - */ -static gboolean -gst_matroska_demux_handle_seek_push (GstMatroskaDemux * demux, GstPad * pad, - GstEvent * event) -{ - GstSeekFlags flags; - GstSeekType cur_type, stop_type; - GstFormat format; - gdouble rate; - gint64 cur, stop; - - gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur, - &stop_type, &stop); - - /* sanity checks */ - - /* we can only seek on time */ - if (format != GST_FORMAT_TIME) { - GST_DEBUG_OBJECT (demux, "Can only seek on TIME"); - return FALSE; - } - - if (stop_type != GST_SEEK_TYPE_NONE && stop != GST_CLOCK_TIME_NONE) { - GST_DEBUG_OBJECT (demux, "Seek end-time not supported in streaming mode"); - return FALSE; - } - - if (!(flags & GST_SEEK_FLAG_FLUSH)) { - GST_DEBUG_OBJECT (demux, - "Non-flushing seek not supported in streaming mode"); - return FALSE; - } - - if (flags & GST_SEEK_FLAG_SEGMENT) { - GST_DEBUG_OBJECT (demux, "Segment seek not supported in streaming mode"); - return FALSE; - } - - /* check for having parsed index already */ - if (!demux->common.index_parsed) { - gboolean building_index; - guint64 offset = 0; - - if (!demux->index_offset) { - GST_DEBUG_OBJECT (demux, "no index (location); no seek in push mode"); - return FALSE; - } - - GST_OBJECT_LOCK (demux); - /* handle the seek event in the chain function */ - demux->common.state = GST_MATROSKA_READ_STATE_SEEK; - /* no more seek can be issued until state reset to _DATA */ - - /* copy the event */ - if (demux->seek_event) - gst_event_unref (demux->seek_event); - demux->seek_event = gst_event_ref (event); - - /* set the building_index flag so that only one thread can setup the - * structures for index seeking. */ - building_index = demux->building_index; - if (!building_index) { - demux->building_index = TRUE; - offset = demux->index_offset; - } - GST_OBJECT_UNLOCK (demux); - - if (!building_index) { - /* seek to the first subindex or legacy index */ - GST_INFO_OBJECT (demux, "Seeking to Cues at %" G_GUINT64_FORMAT, offset); - return perform_seek_to_offset (demux, offset); - } - - /* well, we are handling it already */ - return TRUE; - } - - /* delegate to tweaked regular seek */ - return gst_matroska_demux_handle_seek_event (demux, pad, event); -} - -static gboolean -gst_matroska_demux_handle_src_event (GstPad * pad, GstEvent * event) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (gst_pad_get_parent (pad)); - gboolean res = TRUE; - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_SEEK: - /* no seeking until we are (safely) ready */ - if (demux->common.state != GST_MATROSKA_READ_STATE_DATA) { - GST_DEBUG_OBJECT (demux, "not ready for seeking yet"); - return FALSE; - } - if (!demux->streaming) - res = gst_matroska_demux_handle_seek_event (demux, pad, event); - else - res = gst_matroska_demux_handle_seek_push (demux, pad, event); - gst_event_unref (event); - break; - - case GST_EVENT_QOS: - { - GstMatroskaTrackContext *context = gst_pad_get_element_private (pad); - if (context->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - GstMatroskaTrackVideoContext *videocontext = - (GstMatroskaTrackVideoContext *) context; - gdouble proportion; - GstClockTimeDiff diff; - GstClockTime timestamp; - - gst_event_parse_qos (event, &proportion, &diff, ×tamp); - - GST_OBJECT_LOCK (demux); - videocontext->earliest_time = timestamp + diff; - GST_OBJECT_UNLOCK (demux); - } - res = TRUE; - gst_event_unref (event); - break; - } - - /* events we don't need to handle */ - case GST_EVENT_NAVIGATION: - gst_event_unref (event); - res = FALSE; - break; - - case GST_EVENT_LATENCY: - default: - res = gst_pad_push_event (demux->common.sinkpad, event); - break; - } - - gst_object_unref (demux); - - return res; -} - -static GstFlowReturn -gst_matroska_demux_seek_to_previous_keyframe (GstMatroskaDemux * demux) -{ - GstFlowReturn ret = GST_FLOW_UNEXPECTED; - gboolean done = TRUE; - gint i; - - g_return_val_if_fail (demux->seek_index, GST_FLOW_UNEXPECTED); - g_return_val_if_fail (demux->seek_entry < demux->seek_index->len, - GST_FLOW_UNEXPECTED); - - GST_DEBUG_OBJECT (demux, "locating previous keyframe"); - - if (!demux->seek_entry) { - GST_DEBUG_OBJECT (demux, "no earlier index entry"); - goto exit; - } - - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *stream = g_ptr_array_index (demux->common.src, i); - - GST_DEBUG_OBJECT (demux, "segment start %" GST_TIME_FORMAT - ", stream %d at %" GST_TIME_FORMAT, - GST_TIME_ARGS (demux->common.segment.start), stream->index, - GST_TIME_ARGS (stream->from_time)); - if (GST_CLOCK_TIME_IS_VALID (stream->from_time)) { - if (stream->from_time > demux->common.segment.start) { - GST_DEBUG_OBJECT (demux, "stream %d not finished yet", stream->index); - done = FALSE; - } - } else { - /* nothing pushed for this stream; - * likely seek entry did not start at keyframe, so all was skipped. - * So we need an earlier entry */ - done = FALSE; - } - } - - if (!done) { - GstMatroskaIndex *entry; - - entry = &g_array_index (demux->seek_index, GstMatroskaIndex, - --demux->seek_entry); - if (!gst_matroska_demux_move_to_entry (demux, entry, FALSE)) - goto exit; - - ret = GST_FLOW_OK; - } - -exit: - return ret; -} - -static GstFlowReturn -gst_matroska_demux_parse_tracks (GstMatroskaDemux * demux, GstEbmlRead * ebml) -{ - GstFlowReturn ret = GST_FLOW_OK; - guint32 id; - - DEBUG_ELEMENT_START (demux, ebml, "Tracks"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (demux, ebml, "Tracks", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* one track within the "all-tracks" header */ - case GST_MATROSKA_ID_TRACKENTRY: - ret = gst_matroska_demux_add_stream (demux, ebml); - break; - - default: - ret = gst_matroska_read_common_parse_skip (&demux->common, ebml, - "Track", id); - break; - } - } - DEBUG_ELEMENT_STOP (demux, ebml, "Tracks", ret); - - demux->tracks_parsed = TRUE; - - return ret; -} - -/* - * Read signed/unsigned "EBML" numbers. - * Return: number of bytes processed. - */ - -static gint -gst_matroska_ebmlnum_uint (guint8 * data, guint size, guint64 * num) -{ - gint len_mask = 0x80, read = 1, n = 1, num_ffs = 0; - guint64 total; - - if (size <= 0) { - return -1; - } - - total = data[0]; - while (read <= 8 && !(total & len_mask)) { - read++; - len_mask >>= 1; - } - if (read > 8) - return -1; - - if ((total &= (len_mask - 1)) == len_mask - 1) - num_ffs++; - if (size < read) - return -1; - while (n < read) { - if (data[n] == 0xff) - num_ffs++; - total = (total << 8) | data[n]; - n++; - } - - if (read == num_ffs && total != 0) - *num = G_MAXUINT64; - else - *num = total; - - return read; -} - -static gint -gst_matroska_ebmlnum_sint (guint8 * data, guint size, gint64 * num) -{ - guint64 unum; - gint res; - - /* read as unsigned number first */ - if ((res = gst_matroska_ebmlnum_uint (data, size, &unum)) < 0) - return -1; - - /* make signed */ - if (unum == G_MAXUINT64) - *num = G_MAXINT64; - else - *num = unum - ((1 << ((7 * res) - 1)) - 1); - - return res; -} - -/* - * Mostly used for subtitles. We add void filler data for each - * lagging stream to make sure we don't deadlock. - */ - -static void -gst_matroska_demux_sync_streams (GstMatroskaDemux * demux) -{ - gint stream_nr; - - GST_OBJECT_LOCK (demux); - - GST_LOG_OBJECT (demux, "Sync to %" GST_TIME_FORMAT, - GST_TIME_ARGS (demux->common.segment.last_stop)); - - g_assert (demux->common.num_streams == demux->common.src->len); - for (stream_nr = 0; stream_nr < demux->common.src->len; stream_nr++) { - GstMatroskaTrackContext *context; - - context = g_ptr_array_index (demux->common.src, stream_nr); - - GST_LOG_OBJECT (demux, - "Checking for resync on stream %d (%" GST_TIME_FORMAT ")", stream_nr, - GST_TIME_ARGS (context->pos)); - - if (G_LIKELY (context->type != GST_MATROSKA_TRACK_TYPE_SUBTITLE)) { - GST_LOG_OBJECT (demux, "Skipping sync on non-subtitle stream"); - continue; - } -#ifndef MKV_DEMUX_MODIFICATION - /* does it lag? 0.5 seconds is a random threshold... - * lag need only be considered if we have advanced into requested segment */ - if (GST_CLOCK_TIME_IS_VALID (context->pos) && - GST_CLOCK_TIME_IS_VALID (demux->common.segment.last_stop) && - demux->common.segment.last_stop > demux->common.segment.start && - context->pos + (GST_SECOND / 2) < demux->common.segment.last_stop) { - gint64 new_start; - GstEvent *event; - - new_start = demux->common.segment.last_stop - (GST_SECOND / 2); - if (GST_CLOCK_TIME_IS_VALID (demux->common.segment.stop)) - new_start = MIN (new_start, demux->common.segment.stop); - GST_DEBUG_OBJECT (demux, - "Synchronizing stream %d with others by advancing time " "from %" - GST_TIME_FORMAT " to %" GST_TIME_FORMAT, stream_nr, - GST_TIME_ARGS (context->pos), GST_TIME_ARGS (new_start)); - - context->pos = new_start; - - /* advance stream time */ - event = gst_event_new_new_segment (TRUE, demux->common.segment.rate, - demux->common.segment.format, new_start, demux->common.segment.stop, - new_start); - GST_OBJECT_UNLOCK (demux); - gst_pad_push_event (context->pad, event); - GST_OBJECT_LOCK (demux); - } -#endif - } - - GST_OBJECT_UNLOCK (demux); -} - -static GstFlowReturn -gst_matroska_demux_push_hdr_buf (GstMatroskaDemux * demux, - GstMatroskaTrackContext * stream, guint8 * data, guint len) -{ - GstFlowReturn ret, cret; - GstBuffer *header_buf; - - header_buf = gst_buffer_new_and_alloc (len); - gst_buffer_set_caps (header_buf, stream->caps); - memcpy (GST_BUFFER_DATA (header_buf), data, len); - - if (stream->set_discont) { - GST_BUFFER_FLAG_SET (header_buf, GST_BUFFER_FLAG_DISCONT); - stream->set_discont = FALSE; - } - - ret = gst_pad_push (stream->pad, header_buf); - - /* combine flows */ - cret = gst_matroska_demux_combine_flows (demux, stream, ret); - - return cret; -} - -static GstFlowReturn -gst_matroska_demux_push_flac_codec_priv_data (GstMatroskaDemux * demux, - GstMatroskaTrackContext * stream) -{ - GstFlowReturn ret; - guint8 *pdata; - guint off, len; - - GST_LOG_OBJECT (demux, "priv data size = %u", stream->codec_priv_size); - - pdata = (guint8 *) stream->codec_priv; - - /* need at least 'fLaC' marker + STREAMINFO metadata block */ - if (stream->codec_priv_size < ((4) + (4 + 34))) { - GST_WARNING_OBJECT (demux, "not enough codec priv data for flac headers"); - return GST_FLOW_ERROR; - } - - if (memcmp (pdata, "fLaC", 4) != 0) { - GST_WARNING_OBJECT (demux, "no flac marker at start of stream headers"); - return GST_FLOW_ERROR; - } - - ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata, 4); - if (ret != GST_FLOW_OK) - return ret; - - off = 4; /* skip fLaC marker */ - while (off < stream->codec_priv_size) { - len = GST_READ_UINT8 (pdata + off + 1) << 16; - len |= GST_READ_UINT8 (pdata + off + 2) << 8; - len |= GST_READ_UINT8 (pdata + off + 3); - - GST_DEBUG_OBJECT (demux, "header packet: len=%u bytes, flags=0x%02x", - len, (guint) pdata[off]); - - ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata + off, len + 4); - if (ret != GST_FLOW_OK) - return ret; - - off += 4 + len; - } - return GST_FLOW_OK; -} - -static GstFlowReturn -gst_matroska_demux_push_speex_codec_priv_data (GstMatroskaDemux * demux, - GstMatroskaTrackContext * stream) -{ - GstFlowReturn ret; - guint8 *pdata; - - GST_LOG_OBJECT (demux, "priv data size = %u", stream->codec_priv_size); - - pdata = (guint8 *) stream->codec_priv; - - /* need at least 'fLaC' marker + STREAMINFO metadata block */ - if (stream->codec_priv_size < 80) { - GST_WARNING_OBJECT (demux, "not enough codec priv data for speex headers"); - return GST_FLOW_ERROR; - } - - if (memcmp (pdata, "Speex ", 8) != 0) { - GST_WARNING_OBJECT (demux, "no Speex marker at start of stream headers"); - return GST_FLOW_ERROR; - } - - ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata, 80); - if (ret != GST_FLOW_OK) - return ret; - - if (stream->codec_priv_size == 80) - return ret; - else - return gst_matroska_demux_push_hdr_buf (demux, stream, pdata + 80, - stream->codec_priv_size - 80); -} - -static GstFlowReturn -gst_matroska_demux_push_xiph_codec_priv_data (GstMatroskaDemux * demux, - GstMatroskaTrackContext * stream) -{ - GstFlowReturn ret; - guint8 *p = (guint8 *) stream->codec_priv; - gint i, offset, num_packets; - guint *length, last; - - if (stream->codec_priv == NULL || stream->codec_priv_size == 0) { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("Missing codec private data for xiph headers, broken file")); - return GST_FLOW_ERROR; - } - - /* start of the stream and vorbis audio or theora video, need to - * send the codec_priv data as first three packets */ - num_packets = p[0] + 1; - GST_DEBUG_OBJECT (demux, "%u stream headers, total length=%u bytes", - (guint) num_packets, stream->codec_priv_size); - - length = g_alloca (num_packets * sizeof (guint)); - last = 0; - offset = 1; - - /* first packets, read length values */ - for (i = 0; i < num_packets - 1; i++) { - length[i] = 0; - while (offset < stream->codec_priv_size) { - length[i] += p[offset]; - if (p[offset++] != 0xff) - break; - } - last += length[i]; - } - if (offset + last > stream->codec_priv_size) - return GST_FLOW_ERROR; - - /* last packet is the remaining size */ - length[i] = stream->codec_priv_size - offset - last; - - for (i = 0; i < num_packets; i++) { - GST_DEBUG_OBJECT (demux, "buffer %d: length=%u bytes", i, - (guint) length[i]); - if (offset + length[i] > stream->codec_priv_size) - return GST_FLOW_ERROR; - - ret = - gst_matroska_demux_push_hdr_buf (demux, stream, p + offset, length[i]); - if (ret != GST_FLOW_OK) - return ret; - - offset += length[i]; - } - return GST_FLOW_OK; -} - -static void -gst_matroska_demux_push_dvd_clut_change_event (GstMatroskaDemux * demux, - GstMatroskaTrackContext * stream) -{ - gchar *buf, *start; - - g_assert (!strcmp (stream->codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_VOBSUB)); - - if (!stream->codec_priv) - return; - - /* ideally, VobSub private data should be parsed and stored more convenient - * elsewhere, but for now, only interested in a small part */ - - /* make sure we have terminating 0 */ - buf = g_strndup ((gchar *) stream->codec_priv, stream->codec_priv_size); - - /* just locate and parse palette part */ - start = strstr (buf, "palette:"); - if (start) { - gint i; - guint32 clut[16]; - guint32 col; - guint8 r, g, b, y, u, v; - - start += 8; - while (g_ascii_isspace (*start)) - start++; - for (i = 0; i < 16; i++) { - if (sscanf (start, "%06x", &col) != 1) - break; - start += 6; - while ((*start == ',') || g_ascii_isspace (*start)) - start++; - /* sigh, need to convert this from vobsub pseudo-RGB to YUV */ - r = (col >> 16) & 0xff; - g = (col >> 8) & 0xff; - b = col & 0xff; - y = CLAMP ((0.1494 * r + 0.6061 * g + 0.2445 * b) * 219 / 255 + 16, 0, - 255); - u = CLAMP (0.6066 * r - 0.4322 * g - 0.1744 * b + 128, 0, 255); - v = CLAMP (-0.08435 * r - 0.3422 * g + 0.4266 * b + 128, 0, 255); - clut[i] = (y << 16) | (u << 8) | v; - } - - /* got them all without problems; build and send event */ - if (i == 16) { - GstStructure *s; - - s = gst_structure_new ("application/x-gst-dvd", "event", G_TYPE_STRING, - "dvd-spu-clut-change", "clut00", G_TYPE_INT, clut[0], "clut01", - G_TYPE_INT, clut[1], "clut02", G_TYPE_INT, clut[2], "clut03", - G_TYPE_INT, clut[3], "clut04", G_TYPE_INT, clut[4], "clut05", - G_TYPE_INT, clut[5], "clut06", G_TYPE_INT, clut[6], "clut07", - G_TYPE_INT, clut[7], "clut08", G_TYPE_INT, clut[8], "clut09", - G_TYPE_INT, clut[9], "clut10", G_TYPE_INT, clut[10], "clut11", - G_TYPE_INT, clut[11], "clut12", G_TYPE_INT, clut[12], "clut13", - G_TYPE_INT, clut[13], "clut14", G_TYPE_INT, clut[14], "clut15", - G_TYPE_INT, clut[15], NULL); - - gst_pad_push_event (stream->pad, - gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s)); - } - } - g_free (buf); -} - -static GstFlowReturn -gst_matroska_demux_add_mpeg_seq_header (GstElement * element, - GstMatroskaTrackContext * stream, GstBuffer ** buf) -{ - guint8 *seq_header; - guint seq_header_len; - guint32 header; - - if (stream->codec_state) { - seq_header = stream->codec_state; - seq_header_len = stream->codec_state_size; - } else if (stream->codec_priv) { - seq_header = stream->codec_priv; - seq_header_len = stream->codec_priv_size; - } else { - return GST_FLOW_OK; - } - - /* Sequence header only needed for keyframes */ - if (GST_BUFFER_FLAG_IS_SET (*buf, GST_BUFFER_FLAG_DELTA_UNIT)) - return GST_FLOW_OK; - - if (GST_BUFFER_SIZE (*buf) < 4) - return GST_FLOW_OK; - - header = GST_READ_UINT32_BE (GST_BUFFER_DATA (*buf)); - /* Sequence start code, if not found prepend */ - if (header != 0x000001b3) { - GstBuffer *newbuf; - - newbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + seq_header_len); - gst_buffer_set_caps (newbuf, stream->caps); - - GST_DEBUG_OBJECT (element, "Prepending MPEG sequence header"); - gst_buffer_copy_metadata (newbuf, *buf, GST_BUFFER_COPY_TIMESTAMPS | - GST_BUFFER_COPY_FLAGS); - g_memmove (GST_BUFFER_DATA (newbuf), seq_header, seq_header_len); - g_memmove (GST_BUFFER_DATA (newbuf) + seq_header_len, - GST_BUFFER_DATA (*buf), GST_BUFFER_SIZE (*buf)); - gst_buffer_unref (*buf); - *buf = newbuf; - } - - return GST_FLOW_OK; -} - -static GstFlowReturn -gst_matroska_demux_add_wvpk_header (GstElement * element, - GstMatroskaTrackContext * stream, GstBuffer ** buf) -{ - GstMatroskaTrackAudioContext *audiocontext = - (GstMatroskaTrackAudioContext *) stream; - GstBuffer *newbuf = NULL; - guint8 *data; - guint newlen; - Wavpack4Header wvh; - - wvh.ck_id[0] = 'w'; - wvh.ck_id[1] = 'v'; - wvh.ck_id[2] = 'p'; - wvh.ck_id[3] = 'k'; - - wvh.version = GST_READ_UINT16_LE (stream->codec_priv); - wvh.track_no = 0; - wvh.index_no = 0; - wvh.total_samples = -1; - wvh.block_index = audiocontext->wvpk_block_index; - - if (audiocontext->channels <= 2) { - guint32 block_samples; - - block_samples = GST_READ_UINT32_LE (GST_BUFFER_DATA (*buf)); - /* we need to reconstruct the header of the wavpack block */ - - /* -20 because ck_size is the size of the wavpack block -8 - * and lace_size is the size of the wavpack block + 12 - * (the three guint32 of the header that already are in the buffer) */ - wvh.ck_size = GST_BUFFER_SIZE (*buf) + sizeof (Wavpack4Header) - 20; - - /* block_samples, flags and crc are already in the buffer */ - newlen = GST_BUFFER_SIZE (*buf) + sizeof (Wavpack4Header) - 12; - newbuf = gst_buffer_new_and_alloc (newlen); - gst_buffer_set_caps (newbuf, stream->caps); - - data = GST_BUFFER_DATA (newbuf); - data[0] = 'w'; - data[1] = 'v'; - data[2] = 'p'; - data[3] = 'k'; - GST_WRITE_UINT32_LE (data + 4, wvh.ck_size); - GST_WRITE_UINT16_LE (data + 8, wvh.version); - GST_WRITE_UINT8 (data + 10, wvh.track_no); - GST_WRITE_UINT8 (data + 11, wvh.index_no); - GST_WRITE_UINT32_LE (data + 12, wvh.total_samples); - GST_WRITE_UINT32_LE (data + 16, wvh.block_index); - g_memmove (data + 20, GST_BUFFER_DATA (*buf), GST_BUFFER_SIZE (*buf)); - gst_buffer_copy_metadata (newbuf, *buf, - GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS); - gst_buffer_unref (*buf); - *buf = newbuf; - audiocontext->wvpk_block_index += block_samples; - } else { - guint8 *outdata; - guint outpos = 0; - guint size; - guint32 block_samples, flags, crc, blocksize; - - data = GST_BUFFER_DATA (*buf); - size = GST_BUFFER_SIZE (*buf); - - if (size < 4) { - GST_ERROR_OBJECT (element, "Too small wavpack buffer"); - return GST_FLOW_ERROR; - } - - block_samples = GST_READ_UINT32_LE (data); - data += 4; - size -= 4; - - while (size > 12) { - flags = GST_READ_UINT32_LE (data); - data += 4; - size -= 4; - crc = GST_READ_UINT32_LE (data); - data += 4; - size -= 4; - blocksize = GST_READ_UINT32_LE (data); - data += 4; - size -= 4; - - if (blocksize == 0 || size < blocksize) - break; - - if (newbuf == NULL) { - newbuf = gst_buffer_new_and_alloc (sizeof (Wavpack4Header) + blocksize); - gst_buffer_set_caps (newbuf, stream->caps); - - gst_buffer_copy_metadata (newbuf, *buf, - GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS); - - outpos = 0; - outdata = GST_BUFFER_DATA (newbuf); - } else { - GST_BUFFER_SIZE (newbuf) += sizeof (Wavpack4Header) + blocksize; - GST_BUFFER_DATA (newbuf) = - g_realloc (GST_BUFFER_DATA (newbuf), GST_BUFFER_SIZE (newbuf)); - GST_BUFFER_MALLOCDATA (newbuf) = GST_BUFFER_DATA (newbuf); - outdata = GST_BUFFER_DATA (newbuf); - } - - outdata[outpos] = 'w'; - outdata[outpos + 1] = 'v'; - outdata[outpos + 2] = 'p'; - outdata[outpos + 3] = 'k'; - outpos += 4; - - GST_WRITE_UINT32_LE (outdata + outpos, - blocksize + sizeof (Wavpack4Header) - 8); - GST_WRITE_UINT16_LE (outdata + outpos + 4, wvh.version); - GST_WRITE_UINT8 (outdata + outpos + 6, wvh.track_no); - GST_WRITE_UINT8 (outdata + outpos + 7, wvh.index_no); - GST_WRITE_UINT32_LE (outdata + outpos + 8, wvh.total_samples); - GST_WRITE_UINT32_LE (outdata + outpos + 12, wvh.block_index); - GST_WRITE_UINT32_LE (outdata + outpos + 16, block_samples); - GST_WRITE_UINT32_LE (outdata + outpos + 20, flags); - GST_WRITE_UINT32_LE (outdata + outpos + 24, crc); - outpos += 28; - - g_memmove (outdata + outpos, data, blocksize); - outpos += blocksize; - data += blocksize; - size -= blocksize; - } - gst_buffer_unref (*buf); - *buf = newbuf; - audiocontext->wvpk_block_index += block_samples; - } - - return GST_FLOW_OK; -} - -/* @text must be null-terminated */ -static gboolean -gst_matroska_demux_subtitle_chunk_has_tag (GstElement * element, - const gchar * text) -{ - gchar *tag; - - /* yes, this might all lead to false positives ... */ - tag = (gchar *) text; - while ((tag = strchr (tag, '<'))) { - tag++; - if (*tag != '\0' && *(tag + 1) == '>') { - /* some common convenience ones */ - /* maybe any character will do here ? */ - switch (*tag) { - case 'b': - case 'i': - case 'u': - case 's': - return TRUE; - default: - return FALSE; - } - } - } - - if (strstr (text, "<span")) - return TRUE; - - return FALSE; -} - -static GstFlowReturn -gst_matroska_demux_check_subtitle_buffer (GstElement * element, - GstMatroskaTrackContext * stream, GstBuffer ** buf) -{ - GstMatroskaTrackSubtitleContext *sub_stream; - const gchar *encoding, *data; - GError *err = NULL; - GstBuffer *newbuf; - gchar *utf8; - guint size; - - sub_stream = (GstMatroskaTrackSubtitleContext *) stream; - - data = (const gchar *) GST_BUFFER_DATA (*buf); - size = GST_BUFFER_SIZE (*buf); - - if (!sub_stream->invalid_utf8) { - if (g_utf8_validate (data, size, NULL)) { - goto next; - } - GST_WARNING_OBJECT (element, "subtitle stream %d is not valid UTF-8, this " - "is broken according to the matroska specification", stream->num); - sub_stream->invalid_utf8 = TRUE; - } - - /* file with broken non-UTF8 subtitle, do the best we can do to fix it */ - encoding = g_getenv ("GST_SUBTITLE_ENCODING"); - if (encoding == NULL || *encoding == '\0') { - /* if local encoding is UTF-8 and no encoding specified - * via the environment variable, assume ISO-8859-15 */ - if (g_get_charset (&encoding)) { - encoding = "ISO-8859-15"; - } - } - - utf8 = g_convert_with_fallback (data, size, "UTF-8", encoding, (char *) "*", - NULL, NULL, &err); - - if (err) { - GST_LOG_OBJECT (element, "could not convert string from '%s' to UTF-8: %s", - encoding, err->message); - g_error_free (err); - g_free (utf8); - - /* invalid input encoding, fall back to ISO-8859-15 (always succeeds) */ - encoding = "ISO-8859-15"; - utf8 = g_convert_with_fallback (data, size, "UTF-8", encoding, (char *) "*", - NULL, NULL, NULL); - } - - GST_LOG_OBJECT (element, "converted subtitle text from %s to UTF-8 %s", - encoding, (err) ? "(using ISO-8859-15 as fallback)" : ""); - - if (utf8 == NULL) - utf8 = g_strdup ("invalid subtitle"); - - newbuf = gst_buffer_new (); - GST_BUFFER_MALLOCDATA (newbuf) = (guint8 *) utf8; - GST_BUFFER_DATA (newbuf) = (guint8 *) utf8; - GST_BUFFER_SIZE (newbuf) = strlen (utf8); - gst_buffer_copy_metadata (newbuf, *buf, GST_BUFFER_COPY_ALL); - gst_buffer_unref (*buf); - - *buf = newbuf; - data = (const gchar *) GST_BUFFER_DATA (*buf); - size = GST_BUFFER_SIZE (*buf); - -next: - - if (sub_stream->check_markup) { - /* caps claim markup text, so we need to escape text, - * except if text is already markup and then needs no further escaping */ - sub_stream->seen_markup_tag = sub_stream->seen_markup_tag || - gst_matroska_demux_subtitle_chunk_has_tag (element, data); - - if (!sub_stream->seen_markup_tag) { - utf8 = g_markup_escape_text (data, size); - - newbuf = gst_buffer_new (); - GST_BUFFER_MALLOCDATA (newbuf) = (guint8 *) utf8; - GST_BUFFER_DATA (newbuf) = (guint8 *) utf8; - GST_BUFFER_SIZE (newbuf) = strlen (utf8); - gst_buffer_copy_metadata (newbuf, *buf, GST_BUFFER_COPY_ALL); - gst_buffer_unref (*buf); - - *buf = newbuf; - } - } - - return GST_FLOW_OK; -} - -static GstFlowReturn -gst_matroska_demux_check_aac (GstElement * element, - GstMatroskaTrackContext * stream, GstBuffer ** buf) -{ - const guint8 *data; - guint size; - - data = GST_BUFFER_DATA (*buf); - size = GST_BUFFER_SIZE (*buf); - - if (size > 2 && data[0] == 0xff && (data[1] >> 4 == 0x0f)) { - GstCaps *new_caps; - GstStructure *s; - - /* tss, ADTS data, remove codec_data - * still assume it is at least parsed */ - new_caps = gst_caps_copy (stream->caps); - s = gst_caps_get_structure (new_caps, 0); - g_assert (s); - gst_structure_remove_field (s, "codec_data"); - gst_caps_replace (&stream->caps, new_caps); - gst_pad_set_caps (stream->pad, new_caps); - gst_buffer_set_caps (*buf, new_caps); - GST_DEBUG_OBJECT (element, "ADTS AAC audio data; removing codec-data, " - "new caps: %" GST_PTR_FORMAT, new_caps); - gst_caps_unref (new_caps); - } - - /* disable subsequent checking */ - stream->postprocess_frame = NULL; - - return GST_FLOW_OK; -} - -static GstFlowReturn -gst_matroska_demux_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux, - GstEbmlRead * ebml, guint64 cluster_time, guint64 cluster_offset, - gboolean is_simpleblock) -{ - GstMatroskaTrackContext *stream = NULL; - GstFlowReturn ret = GST_FLOW_OK; - gboolean readblock = FALSE; - guint32 id; - guint64 block_duration = -1; - GstBuffer *buf = NULL; - gint stream_num = -1, n, laces = 0; - guint size = 0; - gint *lace_size = NULL; - gint64 time = 0; - gint flags = 0; - gint64 referenceblock = 0; - gint64 offset; - - offset = gst_ebml_read_get_offset (ebml); - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if (!is_simpleblock) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) { - goto data_error; - } - } else { - id = GST_MATROSKA_ID_SIMPLEBLOCK; - } - - switch (id) { - /* one block inside the group. Note, block parsing is one - * of the harder things, so this code is a bit complicated. - * See http://www.matroska.org/ for documentation. */ - case GST_MATROSKA_ID_SIMPLEBLOCK: - case GST_MATROSKA_ID_BLOCK: - { - guint64 num; - guint8 *data; - - if (buf) { - gst_buffer_unref (buf); - buf = NULL; - } - if ((ret = gst_ebml_read_buffer (ebml, &id, &buf)) != GST_FLOW_OK) - break; - - data = GST_BUFFER_DATA (buf); - size = GST_BUFFER_SIZE (buf); - - /* first byte(s): blocknum */ - if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) - goto data_error; - data += n; - size -= n; - - /* fetch stream from num */ - stream_num = gst_matroska_read_common_stream_from_num (&demux->common, - num); - if (G_UNLIKELY (size < 3)) { - GST_WARNING_OBJECT (demux, "Invalid size %u", size); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } else if (G_UNLIKELY (stream_num < 0 || - stream_num >= demux->common.num_streams)) { - /* let's not give up on a stray invalid track number */ - GST_WARNING_OBJECT (demux, - "Invalid stream %d for track number %" G_GUINT64_FORMAT - "; ignoring block", stream_num, num); - goto done; - } - - stream = g_ptr_array_index (demux->common.src, stream_num); - -#ifdef MKV_DEMUX_MODIFICATION - if (demux->common.segment.rate < 0.0) { - if ((stream_num+1) == GST_MATROSKA_TRACK_TYPE_AUDIO) { - /* found at least one audio block */ - demux->found_audioframe = TRUE; - } - } -#endif - - /* time (relative to cluster time) */ - time = ((gint16) GST_READ_UINT16_BE (data)); - data += 2; - size -= 2; - flags = GST_READ_UINT8 (data); - data += 1; - size -= 1; - - GST_LOG_OBJECT (demux, "time %" G_GUINT64_FORMAT ", flags %d", time, - flags); - - switch ((flags & 0x06) >> 1) { - case 0x0: /* no lacing */ - laces = 1; - lace_size = g_new (gint, 1); - lace_size[0] = size; - break; - - case 0x1: /* xiph lacing */ - case 0x2: /* fixed-size lacing */ - case 0x3: /* EBML lacing */ - if (size == 0) - goto invalid_lacing; - laces = GST_READ_UINT8 (data) + 1; - data += 1; - size -= 1; - lace_size = g_new0 (gint, laces); - - switch ((flags & 0x06) >> 1) { - case 0x1: /* xiph lacing */ { - guint temp, total = 0; - - for (n = 0; ret == GST_FLOW_OK && n < laces - 1; n++) { - while (1) { - if (size == 0) - goto invalid_lacing; - temp = GST_READ_UINT8 (data); - lace_size[n] += temp; - data += 1; - size -= 1; - if (temp != 0xff) - break; - } - total += lace_size[n]; - } - lace_size[n] = size - total; - break; - } - - case 0x2: /* fixed-size lacing */ - for (n = 0; n < laces; n++) - lace_size[n] = size / laces; - break; - - case 0x3: /* EBML lacing */ { - guint total; - - if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) - goto data_error; - data += n; - size -= n; - total = lace_size[0] = num; - for (n = 1; ret == GST_FLOW_OK && n < laces - 1; n++) { - gint64 snum; - gint r; - - if ((r = gst_matroska_ebmlnum_sint (data, size, &snum)) < 0) - goto data_error; - data += r; - size -= r; - lace_size[n] = lace_size[n - 1] + snum; - total += lace_size[n]; - } - if (n < laces) - lace_size[n] = size - total; - break; - } - } - break; - } - - if (stream->send_xiph_headers) { - ret = gst_matroska_demux_push_xiph_codec_priv_data (demux, stream); - stream->send_xiph_headers = FALSE; - } - - if (stream->send_flac_headers) { - ret = gst_matroska_demux_push_flac_codec_priv_data (demux, stream); - stream->send_flac_headers = FALSE; - } - - if (stream->send_speex_headers) { - ret = gst_matroska_demux_push_speex_codec_priv_data (demux, stream); - stream->send_speex_headers = FALSE; - } - - if (stream->send_dvd_event) { - gst_matroska_demux_push_dvd_clut_change_event (demux, stream); - /* FIXME: should we send this event again after (flushing) seek ? */ - stream->send_dvd_event = FALSE; - } - - if (ret != GST_FLOW_OK) - break; - - readblock = TRUE; - break; - } - - case GST_MATROSKA_ID_BLOCKDURATION:{ - ret = gst_ebml_read_uint (ebml, &id, &block_duration); - GST_DEBUG_OBJECT (demux, "BlockDuration: %" G_GUINT64_FORMAT, - block_duration); - break; - } - - case GST_MATROSKA_ID_REFERENCEBLOCK:{ - ret = gst_ebml_read_sint (ebml, &id, &referenceblock); - GST_DEBUG_OBJECT (demux, "ReferenceBlock: %" G_GINT64_FORMAT, - referenceblock); - break; - } - - case GST_MATROSKA_ID_CODECSTATE:{ - guint8 *data; - guint64 data_len = 0; - - if ((ret = - gst_ebml_read_binary (ebml, &id, &data, - &data_len)) != GST_FLOW_OK) - break; - - if (G_UNLIKELY (stream == NULL)) { - GST_WARNING_OBJECT (demux, - "Unexpected CodecState subelement - ignoring"); - break; - } - - g_free (stream->codec_state); - stream->codec_state = data; - stream->codec_state_size = data_len; - - /* Decode if necessary */ - if (stream->encodings && stream->encodings->len > 0 - && stream->codec_state && stream->codec_state_size > 0) { - if (!gst_matroska_decode_data (stream->encodings, - &stream->codec_state, &stream->codec_state_size, - GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA, TRUE)) { - GST_WARNING_OBJECT (demux, "Decoding codec state failed"); - } - } - - GST_DEBUG_OBJECT (demux, "CodecState of %u bytes", - stream->codec_state_size); - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (&demux->common, ebml, - "BlockGroup", id); - break; - - case GST_MATROSKA_ID_BLOCKVIRTUAL: - case GST_MATROSKA_ID_BLOCKADDITIONS: - case GST_MATROSKA_ID_REFERENCEPRIORITY: - case GST_MATROSKA_ID_REFERENCEVIRTUAL: - case GST_MATROSKA_ID_SLICES: - GST_DEBUG_OBJECT (demux, - "Skipping BlockGroup subelement 0x%x - ignoring", id); - ret = gst_ebml_read_skip (ebml); - break; - } - - if (is_simpleblock) - break; - } - - /* reading a number or so could have failed */ - if (ret != GST_FLOW_OK) - goto data_error; - - if (ret == GST_FLOW_OK && readblock) { - guint64 duration = 0; - gint64 lace_time = 0; - gboolean delta_unit; - - stream = g_ptr_array_index (demux->common.src, stream_num); - - if (cluster_time != GST_CLOCK_TIME_NONE) { - /* FIXME: What to do with negative timestamps? Give timestamp 0 or -1? - * Drop unless the lace contains timestamp 0? */ - if (time < 0 && (-time) > cluster_time) { - lace_time = 0; - } else { - if (stream->timecodescale == 1.0) - lace_time = (cluster_time + time) * demux->common.time_scale; - else - lace_time = - gst_util_guint64_to_gdouble ((cluster_time + time) * - demux->common.time_scale) * stream->timecodescale; - } - } else { - lace_time = GST_CLOCK_TIME_NONE; - } - - /* need to refresh segment info ASAP */ - if (GST_CLOCK_TIME_IS_VALID (lace_time) && demux->need_newsegment) { - guint64 clace_time; - - GST_DEBUG_OBJECT (demux, - "generating segment starting at %" GST_TIME_FORMAT, - GST_TIME_ARGS (lace_time)); - if (!GST_CLOCK_TIME_IS_VALID (demux->stream_start_time)) { - demux->stream_start_time = lace_time; - GST_DEBUG_OBJECT (demux, - "Setting stream start time to %" GST_TIME_FORMAT, - GST_TIME_ARGS (lace_time)); - } - clace_time = MAX (lace_time, demux->stream_start_time); - gst_segment_set_newsegment (&demux->common.segment, FALSE, - demux->common.segment.rate, GST_FORMAT_TIME, clace_time, - GST_CLOCK_TIME_NONE, clace_time - demux->stream_start_time); - /* now convey our segment notion downstream */ - gst_matroska_demux_send_event (demux, gst_event_new_new_segment (FALSE, - demux->common.segment.rate, demux->common.segment.format, - demux->common.segment.start, demux->common.segment.stop, - demux->common.segment.start)); - demux->need_newsegment = FALSE; - } - - if (block_duration != -1) { - if (stream->timecodescale == 1.0) - duration = gst_util_uint64_scale (block_duration, - demux->common.time_scale, 1); - else - duration = - gst_util_gdouble_to_guint64 (gst_util_guint64_to_gdouble - (gst_util_uint64_scale (block_duration, demux->common.time_scale, - 1)) * stream->timecodescale); - } else if (stream->default_duration) { - duration = stream->default_duration * laces; - } - /* else duration is diff between timecode of this and next block */ - - /* For SimpleBlock, look at the keyframe bit in flags. Otherwise, - a ReferenceBlock implies that this is not a keyframe. In either - case, it only makes sense for video streams. */ - delta_unit = stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && - ((is_simpleblock && !(flags & 0x80)) || referenceblock); - - if (delta_unit && stream->set_discont) { - /* When doing seeks or such, we need to restart on key frames or - * decoders might choke. */ - GST_DEBUG_OBJECT (demux, "skipping delta unit"); - goto done; - } - - for (n = 0; n < laces; n++) { - GstBuffer *sub; -#ifdef MKV_DEMUX_MODIFICATION - gboolean skip_flag = FALSE; -#endif - - if (G_UNLIKELY (lace_size[n] > size)) { - GST_WARNING_OBJECT (demux, "Invalid lace size"); - break; - } - - /* QoS for video track with an index. the assumption is that - index entries point to keyframes, but if that is not true we - will instad skip until the next keyframe. */ - if (GST_CLOCK_TIME_IS_VALID (lace_time) && - stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && - stream->index_table && demux->common.segment.rate > 0.0) { - GstMatroskaTrackVideoContext *videocontext = - (GstMatroskaTrackVideoContext *) stream; - GstClockTime earliest_time; - GstClockTime earliest_stream_time; - - GST_OBJECT_LOCK (demux); - earliest_time = videocontext->earliest_time; - GST_OBJECT_UNLOCK (demux); - earliest_stream_time = gst_segment_to_position (&demux->common.segment, - GST_FORMAT_TIME, earliest_time); - - if (GST_CLOCK_TIME_IS_VALID (lace_time) && - GST_CLOCK_TIME_IS_VALID (earliest_stream_time) && - lace_time <= earliest_stream_time) { - /* find index entry (keyframe) <= earliest_stream_time */ - GstMatroskaIndex *entry = - gst_util_array_binary_search (stream->index_table->data, - stream->index_table->len, sizeof (GstMatroskaIndex), - (GCompareDataFunc) gst_matroska_index_seek_find, - GST_SEARCH_MODE_BEFORE, &earliest_stream_time, NULL); - - /* if that entry (keyframe) is after the current the current - buffer, we can skip pushing (and thus decoding) all - buffers until that keyframe. */ - if (entry && GST_CLOCK_TIME_IS_VALID (entry->time) && - entry->time > lace_time) { - GST_LOG_OBJECT (demux, "Skipping lace before late keyframe"); - stream->set_discont = TRUE; - goto next_lace; - } - } - } - - sub = gst_buffer_create_sub (buf, - GST_BUFFER_SIZE (buf) - size, lace_size[n]); - GST_DEBUG_OBJECT (demux, "created subbuffer %p", sub); -#ifdef MKV_DEMUX_MODIFICATION - if(demux->index_table_created == FALSE) { - demux->common.segment.duration = 0; - } -#endif - - if (delta_unit) - GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT); - else - GST_BUFFER_FLAG_UNSET (sub, GST_BUFFER_FLAG_DELTA_UNIT); - - if (stream->encodings != NULL && stream->encodings->len > 0) - sub = gst_matroska_decode_buffer (stream, sub); - - if (sub == NULL) { - GST_WARNING_OBJECT (demux, "Decoding buffer failed"); - goto next_lace; - } - - GST_BUFFER_TIMESTAMP (sub) = lace_time; - - if (GST_CLOCK_TIME_IS_VALID (lace_time)) { - GstClockTime last_stop_end; - -#ifndef MKV_DEMUX_MODIFICATION - /* Check if this stream is after segment stop */ - if (GST_CLOCK_TIME_IS_VALID (demux->common.segment.stop) && - lace_time >= demux->common.segment.stop) { - GST_DEBUG_OBJECT (demux, - "Stream %d after segment stop %" GST_TIME_FORMAT, stream->index, - GST_TIME_ARGS (demux->common.segment.stop)); - gst_buffer_unref (sub); - goto eos; - } - if (offset >= stream->to_offset) { - GST_DEBUG_OBJECT (demux, "Stream %d after playback section", - stream->index); - gst_buffer_unref (sub); - goto eos; - } -#endif - - /* handle gaps, e.g. non-zero start-time, or an cue index entry - * that landed us with timestamps not quite intended */ - GST_OBJECT_LOCK (demux); - if (demux->max_gap_time && -#ifdef MKV_DEMUX_MODIFICATION - GST_CLOCK_TIME_IS_VALID (/*demux->last_stop_end*/demux->common.segment.last_stop) && - demux->common.segment.rate > 0.0) { -#else - GST_CLOCK_TIME_IS_VALID (demux->last_stop_end) && - demux->common.segment.rate > 0.0) { -#endif - - GstClockTimeDiff diff; - GstEvent *event1, *event2; - - /* only send newsegments with increasing start times, - * otherwise if these go back and forth downstream (sinks) increase - * accumulated time and running_time */ -#ifdef MKV_DEMUX_MODIFICATION - diff = GST_CLOCK_DIFF (/*demux->last_stop_end*/demux->common.segment.last_stop, lace_time); -#else - diff = GST_CLOCK_DIFF (demux->last_stop_end, lace_time); -#endif - if (diff > 0 && diff > demux->max_gap_time - && lace_time > demux->common.segment.start - && (!GST_CLOCK_TIME_IS_VALID (demux->common.segment.stop) - || lace_time < demux->common.segment.stop)) { - GST_DEBUG_OBJECT (demux, - "Gap of %" G_GINT64_FORMAT " ns detected in" - "stream %d (%" GST_TIME_FORMAT " -> %" GST_TIME_FORMAT "). " - "Sending updated NEWSEGMENT events", diff, - stream->index, GST_TIME_ARGS (stream->pos), - GST_TIME_ARGS (lace_time)); - /* send newsegment events such that the gap is not accounted in - * accum time, hence running_time */ - /* close ahead of gap */ - event1 = gst_event_new_new_segment (TRUE, - demux->common.segment.rate, demux->common.segment.format, - demux->last_stop_end, demux->last_stop_end, - demux->last_stop_end); - /* skip gap */ - event2 = gst_event_new_new_segment (FALSE, - demux->common.segment.rate, - demux->common.segment.format, lace_time, - demux->common.segment.stop, lace_time); - GST_OBJECT_UNLOCK (demux); - gst_matroska_demux_send_event (demux, event1); - gst_matroska_demux_send_event (demux, event2); - GST_OBJECT_LOCK (demux); - /* align segment view with downstream, - * prevents double-counting accum when closing segment */ - gst_segment_set_newsegment (&demux->common.segment, FALSE, - demux->common.segment.rate, demux->common.segment.format, - lace_time, demux->common.segment.stop, lace_time); - demux->common.segment.last_stop = lace_time; - } - } - - if (!GST_CLOCK_TIME_IS_VALID (demux->common.segment.last_stop) - || demux->common.segment.last_stop < lace_time) { - demux->common.segment.last_stop = lace_time; - } - GST_OBJECT_UNLOCK (demux); - - last_stop_end = lace_time; - if (duration) { - GST_BUFFER_DURATION (sub) = duration / laces; - last_stop_end += GST_BUFFER_DURATION (sub); - } - - if (!GST_CLOCK_TIME_IS_VALID (demux->last_stop_end) || - demux->last_stop_end < last_stop_end) - demux->last_stop_end = last_stop_end; - - GST_OBJECT_LOCK (demux); -#ifdef MKV_DEMUX_MODIFICATION - if ((demux->common.segment.duration == -1 || - demux->stream_start_time + demux->common.segment.duration < - last_stop_end) && demux->index_table_created == TRUE) { -#else - if (demux->common.segment.duration == -1 || - demux->stream_start_time + demux->common.segment.duration < - last_stop_end) { -#endif - gst_segment_set_duration (&demux->common.segment, GST_FORMAT_TIME, - last_stop_end - demux->stream_start_time); - GST_OBJECT_UNLOCK (demux); - if (!demux->invalid_duration) { - gst_element_post_message (GST_ELEMENT_CAST (demux), - gst_message_new_duration (GST_OBJECT_CAST (demux), - GST_FORMAT_TIME, GST_CLOCK_TIME_NONE)); - demux->invalid_duration = TRUE; - } - } else { - GST_OBJECT_UNLOCK (demux); - } - } - - stream->pos = lace_time; - - gst_matroska_demux_sync_streams (demux); - - if (stream->set_discont) { - GST_DEBUG_OBJECT (demux, "marking DISCONT"); - GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DISCONT); - stream->set_discont = FALSE; - } - - /* reverse playback book-keeping */ - if (!GST_CLOCK_TIME_IS_VALID (stream->from_time)) - stream->from_time = lace_time; - if (stream->from_offset == -1) - stream->from_offset = offset; - -#ifdef MKV_DEMUX_MODIFICATION - if ((demux->common.segment.rate < 0.0) && ((stream_num+1) == GST_MATROSKA_TRACK_TYPE_VIDEO)) { - if (GST_BUFFER_FLAG_IS_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT)) { - GST_DEBUG_OBJECT (demux, "skipping delta unit"); - gst_buffer_unref (sub); - goto done; - } else { - /* found key frame*/ - demux->found_videokeyframe = TRUE; - } - } - demux->current_ts = GST_BUFFER_TIMESTAMP (sub); -#endif - - GST_DEBUG_OBJECT (demux, - "Pushing lace %d, data of size %d for stream %d, time=%" - GST_TIME_FORMAT " and duration=%" GST_TIME_FORMAT, n, - GST_BUFFER_SIZE (sub), stream_num, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)), - GST_TIME_ARGS (GST_BUFFER_DURATION (sub))); - - if (demux->common.element_index) { - if (stream->index_writer_id == -1) - gst_index_get_writer_id (demux->common.element_index, - GST_OBJECT (stream->pad), &stream->index_writer_id); - - GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %" - G_GUINT64_FORMAT " for writer id %d", - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)), cluster_offset, - stream->index_writer_id); - gst_index_add_association (demux->common.element_index, - stream->index_writer_id, GST_BUFFER_FLAG_IS_SET (sub, - GST_BUFFER_FLAG_DELTA_UNIT) ? 0 : GST_ASSOCIATION_FLAG_KEY_UNIT, - GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (sub), GST_FORMAT_BYTES, - cluster_offset, NULL); - } - - gst_buffer_set_caps (sub, GST_PAD_CAPS (stream->pad)); - - /* Postprocess the buffers depending on the codec used */ - if (stream->postprocess_frame) { - GST_LOG_OBJECT (demux, "running post process"); - ret = stream->postprocess_frame (GST_ELEMENT (demux), stream, &sub); - } - -#ifdef MKV_DEMUX_MODIFICATION - if (demux->video && demux->common.segment.rate > 1.0 - && stream->type <= GST_MATROSKA_TRACK_TYPE_AUDIO) { - skip_flag = FALSE; - if(GST_BUFFER_TIMESTAMP(sub) >= demux->common.segment.start) { - GST_BUFFER_FLAG_UNSET(sub, GST_BUFFER_FLAG_DELTA_UNIT); - GST_INFO("Entering into forward Trickplay"); - ret = gst_matroska_demux_forward_trickplay (demux, stream, sub, &skip_flag); - } - if (skip_flag == FALSE) { - GST_INFO("buffer pushed %"GST_TIME_FORMAT, GST_TIME_ARGS(GST_BUFFER_TIMESTAMP(sub))); - ret = gst_pad_push (stream->pad, sub); - } else { - GST_INFO("Unreffing the buffer %"GST_TIME_FORMAT, GST_TIME_ARGS(GST_BUFFER_TIMESTAMP(sub))); - gst_buffer_unref (sub); - } - } else if (demux->common.segment.rate < 0.0) { - ret = gst_matroska_demux_backward_trickplay (demux, stream, sub); - } else -#endif - { - /* At this point, we have a sub-buffer pointing at data within a larger - buffer. This data might not be aligned with anything. If the data is - raw samples though, we want it aligned to the raw type (eg, 4 bytes - for 32 bit samples, etc), or bad things will happen downstream as - elements typically assume minimal alignment. - Therefore, create an aligned copy if necessary. */ - g_assert (stream->alignment <= G_MEM_ALIGN); - if (((guintptr) GST_BUFFER_DATA (sub)) & (stream->alignment - 1)) { - GstBuffer *buffer = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (sub)); - memcpy (GST_BUFFER_DATA (buffer), GST_BUFFER_DATA (sub), - GST_BUFFER_SIZE (sub)); - gst_buffer_copy_metadata (buffer, sub, GST_BUFFER_COPY_ALL); - GST_DEBUG_OBJECT (demux, "We want output aligned on %d, reallocated", - stream->alignment); - gst_buffer_unref (sub); - sub = buffer; - } -#ifdef MKV_DEMUX_MODIFICATION - if(demux->index_table_created == FALSE) { - // flag checking sufficient for simple block and delta unit for Block group - if(flags == 128 || (!delta_unit && stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO)) { - GST_INFO("Keyframe Found"); - - //Information required for index table creation - GstMatroskaIndex *idx = NULL; - idx = (GstMatroskaIndex*)malloc(sizeof(GstMatroskaIndex)); - if(idx == NULL) { - GST_INFO("Unable to create memory"); - ret = GST_FLOW_UNEXPECTED; - goto done; - } - idx->pos = (cluster_offset - demux->initial_offset); - idx->track = 1; - idx->time = GST_BUFFER_TIMESTAMP(sub); - idx->block = 1; - - // Creating new/Over-Writing index table - if(!demux->index_table_array_creation) { - GST_INFO("Keyframe time stamp is %"GST_TIME_FORMAT"pos %"G_GUINT64_FORMAT, GST_TIME_ARGS(idx->time), idx->pos); - GST_INFO("Index table creation first time"); - demux->common.index = NULL;//g_array_unref(demux->common.index); - demux->common.index = g_array_new(FALSE, FALSE, sizeof(GstMatroskaIndex)); - g_array_append_val(demux->common.index, *idx); - GST_INFO("size of the index is %d",demux->common.index->len); - demux->index_table_array_creation = TRUE; - } else { - GST_INFO("Adding Keyframe info to index table"); - GST_INFO("Keyframe time stamp is %"GST_TIME_FORMAT"pos %"G_GUINT64_FORMAT, GST_TIME_ARGS(idx->time), idx->pos); - g_array_append_val(demux->common.index, *idx); - GST_INFO("size of the index is %d",demux->common.index->len); - } - free(idx); - idx = NULL; - } else { - //demux->common.segment.duration = (GST_BUFFER_TIMESTAMP(sub) + GST_BUFFER_DURATION (sub)); - demux->duration = GST_BUFFER_TIMESTAMP(sub) + GST_BUFFER_DURATION (sub); - GST_INFO("duration is in capturing not setting%"GST_TIME_FORMAT, GST_TIME_ARGS(demux->duration)); - GST_INFO("duration in segment duration still not set%"GST_TIME_FORMAT, GST_TIME_ARGS(demux->common.segment.duration)); - } - } else { - ret = gst_pad_push (stream->pad, sub); - } -#else - ret = gst_pad_push (stream->pad, sub); -#endif - } - - if (demux->common.segment.rate < 0) { - if (lace_time > demux->common.segment.stop - && ret == GST_FLOW_UNEXPECTED) { - /* In reverse playback we can get a GST_FLOW_UNEXPECTED when - * we are at the end of the segment, so we just need to jump - * back to the previous section. */ - GST_DEBUG_OBJECT (demux, "downstream has reached end of segment"); - ret = GST_FLOW_OK; - } - } - /* combine flows */ - ret = gst_matroska_demux_combine_flows (demux, stream, ret); - - next_lace: - size -= lace_size[n]; - if (lace_time != GST_CLOCK_TIME_NONE && duration) - lace_time += duration / laces; - else - lace_time = GST_CLOCK_TIME_NONE; - } - } - -done: - if (buf) - gst_buffer_unref (buf); - g_free (lace_size); - - return ret; - - /* EXITS */ -eos: - { - stream->eos = TRUE; - ret = GST_FLOW_OK; - /* combine flows */ - ret = gst_matroska_demux_combine_flows (demux, stream, ret); - goto done; - } -invalid_lacing: - { - GST_ELEMENT_WARNING (demux, STREAM, DEMUX, (NULL), ("Invalid lacing size")); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } -data_error: - { - GST_ELEMENT_WARNING (demux, STREAM, DEMUX, (NULL), ("Data error")); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } -} - -/* return FALSE if block(group) should be skipped (due to a seek) */ -static inline gboolean -gst_matroska_demux_seek_block (GstMatroskaDemux * demux) -{ - if (G_UNLIKELY (demux->seek_block)) { - if (!(--demux->seek_block)) { - return TRUE; - } else { - GST_LOG_OBJECT (demux, "should skip block due to seek"); - return FALSE; - } - } else { - return TRUE; - } -} - -static GstFlowReturn -gst_matroska_demux_parse_contents_seekentry (GstMatroskaDemux * demux, - GstEbmlRead * ebml) -{ - GstFlowReturn ret; - guint64 seek_pos = (guint64) - 1; - guint32 seek_id = 0; - guint32 id; - - DEBUG_ELEMENT_START (demux, ebml, "Seek"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (demux, ebml, "Seek", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_SEEKID: - { - guint64 t; - - if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (demux, "SeekID: %" G_GUINT64_FORMAT, t); - seek_id = t; - break; - } - - case GST_MATROSKA_ID_SEEKPOSITION: - { - guint64 t; - - if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK) - break; - - if (t > G_MAXINT64) { - GST_WARNING_OBJECT (demux, - "Too large SeekPosition %" G_GUINT64_FORMAT, t); - break; - } - - GST_DEBUG_OBJECT (demux, "SeekPosition: %" G_GUINT64_FORMAT, t); - seek_pos = t; - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (&demux->common, ebml, - "SeekHead", id); - break; - } - } - - if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED) - return ret; - - if (!seek_id || seek_pos == (guint64) - 1) { - GST_WARNING_OBJECT (demux, "Incomplete seekhead entry (0x%x/%" - G_GUINT64_FORMAT ")", seek_id, seek_pos); - return GST_FLOW_OK; - } - - switch (seek_id) { - case GST_MATROSKA_ID_SEEKHEAD: - { - } - case GST_MATROSKA_ID_CUES: - case GST_MATROSKA_ID_TAGS: - case GST_MATROSKA_ID_TRACKS: - case GST_MATROSKA_ID_SEGMENTINFO: - case GST_MATROSKA_ID_ATTACHMENTS: - case GST_MATROSKA_ID_CHAPTERS: - { - guint64 before_pos, length; - guint needed; - - /* remember */ - length = gst_matroska_read_common_get_length (&demux->common); - before_pos = demux->common.offset; - - if (length == (guint64) - 1) { - GST_DEBUG_OBJECT (demux, "no upstream length, skipping SeakHead entry"); - break; - } - - /* check for validity */ - if (seek_pos + demux->common.ebml_segment_start + 12 >= length) { - GST_WARNING_OBJECT (demux, - "SeekHead reference lies outside file!" " (%" - G_GUINT64_FORMAT "+%" G_GUINT64_FORMAT "+12 >= %" - G_GUINT64_FORMAT ")", seek_pos, demux->common.ebml_segment_start, - length); -#ifdef MKV_DEMUX_MODIFICATION - demux->seek_head_cluster_info_absent = TRUE; - demux->seek_head_cue_info_absent = TRUE; - demux->index_table_created = FALSE; - GST_INFO("Need to create index table this might take time"); -#endif - break; - } - - /* only pick up index location when streaming */ - if (demux->streaming) { - if (seek_id == GST_MATROSKA_ID_CUES) { - demux->index_offset = seek_pos + demux->common.ebml_segment_start; - GST_DEBUG_OBJECT (demux, "Cues located at offset %" G_GUINT64_FORMAT, - demux->index_offset); - } - break; - } - - /* seek */ - demux->common.offset = seek_pos + demux->common.ebml_segment_start; - - /* check ID */ - if ((ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed)) != - GST_FLOW_OK) - goto finish; - - if (id != seek_id) { - GST_WARNING_OBJECT (demux, - "We looked for ID=0x%x but got ID=0x%x (pos=%" G_GUINT64_FORMAT ")", - seek_id, id, seek_pos + demux->common.ebml_segment_start); - } else { - /* now parse */ - ret = gst_matroska_demux_parse_id (demux, id, length, needed); - } - - finish: - /* seek back */ - demux->common.offset = before_pos; - break; - } - - case GST_MATROSKA_ID_CLUSTER: - { - guint64 pos = seek_pos + demux->common.ebml_segment_start; - - GST_LOG_OBJECT (demux, "Cluster position"); - if (G_UNLIKELY (!demux->clusters)) - demux->clusters = g_array_sized_new (TRUE, TRUE, sizeof (guint64), 100); - g_array_append_val (demux->clusters, pos); - break; - } - - default: - GST_DEBUG_OBJECT (demux, "Ignoring Seek entry for ID=0x%x", seek_id); - break; - } - DEBUG_ELEMENT_STOP (demux, ebml, "Seek", ret); - - return ret; -} - -static GstFlowReturn -gst_matroska_demux_parse_contents (GstMatroskaDemux * demux, GstEbmlRead * ebml) -{ - GstFlowReturn ret = GST_FLOW_OK; - guint32 id; - - DEBUG_ELEMENT_START (demux, ebml, "SeekHead"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (demux, ebml, "SeekHead", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_SEEKENTRY: - { - ret = gst_matroska_demux_parse_contents_seekentry (demux, ebml); - /* Ignore EOS and errors here */ - if (ret != GST_FLOW_OK) { - GST_DEBUG_OBJECT (demux, "Ignoring %s", gst_flow_get_name (ret)); - ret = GST_FLOW_OK; - } - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (&demux->common, - ebml, "SeekHead", id); - break; - } - } - - DEBUG_ELEMENT_STOP (demux, ebml, "SeekHead", ret); - - /* Sort clusters by position for easier searching */ - if (demux->clusters) - g_array_sort (demux->clusters, (GCompareFunc) gst_matroska_cluster_compare); - - return ret; -} - -#define GST_FLOW_OVERFLOW GST_FLOW_CUSTOM_ERROR - -#define MAX_BLOCK_SIZE (15 * 1024 * 1024) - -static inline GstFlowReturn -gst_matroska_demux_check_read_size (GstMatroskaDemux * demux, guint64 bytes) -{ - if (G_UNLIKELY (bytes > MAX_BLOCK_SIZE)) { - /* only a few blocks are expected/allowed to be large, - * and will be recursed into, whereas others will be read and must fit */ - if (demux->streaming) { - /* fatal in streaming case, as we can't step over easily */ - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("reading large block of size %" G_GUINT64_FORMAT " not supported; " - "file might be corrupt.", bytes)); - return GST_FLOW_ERROR; - } else { - /* indicate higher level to quietly give up */ - GST_DEBUG_OBJECT (demux, - "too large block of size %" G_GUINT64_FORMAT, bytes); - return GST_FLOW_ERROR; - } - } else { - return GST_FLOW_OK; - } -} - -/* returns TRUE if we truely are in error state, and should give up */ -static inline gboolean -gst_matroska_demux_check_parse_error (GstMatroskaDemux * demux) -{ - if (!demux->streaming && demux->next_cluster_offset > 0) { - /* just repositioning to where next cluster should be and try from there */ - GST_WARNING_OBJECT (demux, "parse error, trying next cluster expected at %" - G_GUINT64_FORMAT, demux->next_cluster_offset); - demux->common.offset = demux->next_cluster_offset; - demux->next_cluster_offset = 0; - return FALSE; - } else { - gint64 pos; - - /* sigh, one last attempt above and beyond call of duty ...; - * search for cluster mark following current pos */ - pos = demux->common.offset; - GST_WARNING_OBJECT (demux, "parse error, looking for next cluster"); - if (gst_matroska_demux_search_cluster (demux, &pos) != GST_FLOW_OK) { - /* did not work, give up */ - return TRUE; - } else { - GST_DEBUG_OBJECT (demux, "... found at %" G_GUINT64_FORMAT, pos); - /* try that position */ - demux->common.offset = pos; - return FALSE; - } - } -} - -static inline GstFlowReturn -gst_matroska_demux_flush (GstMatroskaDemux * demux, guint flush) -{ - GST_LOG_OBJECT (demux, "skipping %d bytes", flush); - demux->common.offset += flush; - if (demux->streaming) { - GstFlowReturn ret; - - /* hard to skip large blocks when streaming */ - ret = gst_matroska_demux_check_read_size (demux, flush); - if (ret != GST_FLOW_OK) - return ret; - if (flush <= gst_adapter_available (demux->common.adapter)) - gst_adapter_flush (demux->common.adapter, flush); - else - return GST_FLOW_UNEXPECTED; - } - return GST_FLOW_OK; -} - -/* initializes @ebml with @bytes from input stream at current offset. - * Returns UNEXPECTED if insufficient available, - * ERROR if too much was attempted to read. */ -static inline GstFlowReturn -gst_matroska_demux_take (GstMatroskaDemux * demux, guint64 bytes, - GstEbmlRead * ebml) -{ - GstBuffer *buffer = NULL; - GstFlowReturn ret = GST_FLOW_OK; - - GST_LOG_OBJECT (demux, "taking %" G_GUINT64_FORMAT " bytes for parsing", - bytes); - ret = gst_matroska_demux_check_read_size (demux, bytes); - if (G_UNLIKELY (ret != GST_FLOW_OK)) { - if (!demux->streaming) { - /* in pull mode, we can skip */ - if ((ret = gst_matroska_demux_flush (demux, bytes)) == GST_FLOW_OK) - ret = GST_FLOW_OVERFLOW; - } else { - /* otherwise fatal */ - ret = GST_FLOW_ERROR; - } - goto exit; - } - if (demux->streaming) { - if (gst_adapter_available (demux->common.adapter) >= bytes) - buffer = gst_adapter_take_buffer (demux->common.adapter, bytes); - else - ret = GST_FLOW_UNEXPECTED; - } else - ret = gst_matroska_read_common_peek_bytes (&demux->common, - demux->common.offset, bytes, &buffer, NULL); - if (G_LIKELY (buffer)) { - gst_ebml_read_init (ebml, GST_ELEMENT_CAST (demux), buffer, - demux->common.offset); - demux->common.offset += bytes; - } -exit: - return ret; -} - -static void -gst_matroska_demux_check_seekability (GstMatroskaDemux * demux) -{ - GstQuery *query; - gboolean seekable = FALSE; - gint64 start = -1, stop = -1; - - query = gst_query_new_seeking (GST_FORMAT_BYTES); - if (!gst_pad_peer_query (demux->common.sinkpad, query)) { - GST_DEBUG_OBJECT (demux, "seeking query failed"); - goto done; - } - - gst_query_parse_seeking (query, NULL, &seekable, &start, &stop); - - /* try harder to query upstream size if we didn't get it the first time */ - if (seekable && stop == -1) { - GstFormat fmt = GST_FORMAT_BYTES; - - GST_DEBUG_OBJECT (demux, "doing duration query to fix up unset stop"); - gst_pad_query_peer_duration (demux->common.sinkpad, &fmt, &stop); - } - - /* if upstream doesn't know the size, it's likely that it's not seekable in - * practice even if it technically may be seekable */ - if (seekable && (start != 0 || stop <= start)) { - GST_DEBUG_OBJECT (demux, "seekable but unknown start/stop -> disable"); - seekable = FALSE; - } - -done: - GST_INFO_OBJECT (demux, "seekable: %d (%" G_GUINT64_FORMAT " - %" - G_GUINT64_FORMAT ")", seekable, start, stop); - demux->seekable = seekable; - - gst_query_unref (query); -} - -static GstFlowReturn -gst_matroska_demux_find_tracks (GstMatroskaDemux * demux) -{ - guint32 id; - guint64 before_pos; - guint64 length; - guint needed; - GstFlowReturn ret = GST_FLOW_OK; - - GST_WARNING_OBJECT (demux, - "Found Cluster element before Tracks, searching Tracks"); - - /* remember */ - before_pos = demux->common.offset; - - /* Search Tracks element */ - while (TRUE) { - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret != GST_FLOW_OK) - break; - - if (id != GST_MATROSKA_ID_TRACKS) { - /* we may be skipping large cluster here, so forego size check etc */ - /* ... but we can't skip undefined size; force error */ - if (length == G_MAXUINT64) { - ret = gst_matroska_demux_check_read_size (demux, length); - break; - } else { - demux->common.offset += needed; - demux->common.offset += length; - } - continue; - } - - /* will lead to track parsing ... */ - ret = gst_matroska_demux_parse_id (demux, id, length, needed); - break; - } - - /* seek back */ - demux->common.offset = before_pos; - - return ret; -} - -#define GST_READ_CHECK(stmt) \ -G_STMT_START { \ - if (G_UNLIKELY ((ret = (stmt)) != GST_FLOW_OK)) { \ - if (ret == GST_FLOW_OVERFLOW) { \ - ret = GST_FLOW_OK; \ - } \ - goto read_error; \ - } \ -} G_STMT_END - -static GstFlowReturn -gst_matroska_demux_parse_id (GstMatroskaDemux * demux, guint32 id, - guint64 length, guint needed) -{ - GstEbmlRead ebml = { 0, }; - GstFlowReturn ret = GST_FLOW_OK; - guint64 read; - - GST_LOG_OBJECT (demux, "Parsing Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", prefix %d", id, length, needed); - - /* if we plan to read and parse this element, we need prefix (id + length) - * and the contents */ - /* mind about overflow wrap-around when dealing with undefined size */ - read = length; - if (G_LIKELY (length != G_MAXUINT64)) - read += needed; - - switch (demux->common.state) { - case GST_MATROSKA_READ_STATE_START: - switch (id) { - case GST_EBML_ID_HEADER: - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_read_common_parse_header (&demux->common, &ebml); - if (ret != GST_FLOW_OK) - goto parse_failed; - demux->common.state = GST_MATROSKA_READ_STATE_SEGMENT; - gst_matroska_demux_check_seekability (demux); - break; - default: - goto invalid_header; - break; - } - break; - case GST_MATROSKA_READ_STATE_SEGMENT: - switch (id) { - case GST_MATROSKA_ID_SEGMENT: - /* eat segment prefix */ - GST_READ_CHECK (gst_matroska_demux_flush (demux, needed)); - GST_DEBUG_OBJECT (demux, - "Found Segment start at offset %" G_GUINT64_FORMAT, - demux->common.offset); -#ifdef MKV_DEMUX_MODIFICATION - demux->initial_offset = demux->common.offset; - GST_INFO("Initial offset storing is %u", demux->initial_offset); -#endif - /* seeks are from the beginning of the segment, - * after the segment ID/length */ - demux->common.ebml_segment_start = demux->common.offset; - demux->common.state = GST_MATROSKA_READ_STATE_HEADER; - break; - default: - GST_WARNING_OBJECT (demux, - "Expected a Segment ID (0x%x), but received 0x%x!", - GST_MATROSKA_ID_SEGMENT, id); - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - break; - } - break; - case GST_MATROSKA_READ_STATE_SCANNING: - if (id != GST_MATROSKA_ID_CLUSTER && - id != GST_MATROSKA_ID_CLUSTERTIMECODE) - goto skip; - /* fall-through */ - case GST_MATROSKA_READ_STATE_HEADER: - case GST_MATROSKA_READ_STATE_DATA: - case GST_MATROSKA_READ_STATE_SEEK: - switch (id) { - case GST_MATROSKA_ID_SEGMENTINFO: - if (!demux->common.segmentinfo_parsed) { - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_read_common_parse_info (&demux->common, - GST_ELEMENT_CAST (demux), &ebml); -#ifdef MKV_DEMUX_MODIFICATION - demux->duration = demux->common.segment.duration; /* need to check */ -#endif - } else { - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - } - break; - case GST_MATROSKA_ID_TRACKS: - if (!demux->tracks_parsed) { - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_demux_parse_tracks (demux, &ebml); - } else { - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - } - break; - case GST_MATROSKA_ID_CLUSTER: - if (G_UNLIKELY (!demux->tracks_parsed)) { - if (demux->streaming) { - GST_DEBUG_OBJECT (demux, "Cluster before Track"); - goto not_streamable; - } else { - ret = gst_matroska_demux_find_tracks (demux); - if (!demux->tracks_parsed) - goto no_tracks; - } - } - if (G_UNLIKELY (demux->common.state - == GST_MATROSKA_READ_STATE_HEADER)) { - demux->common.state = GST_MATROSKA_READ_STATE_DATA; - demux->first_cluster_offset = demux->common.offset; - GST_DEBUG_OBJECT (demux, "signaling no more pads"); - gst_element_no_more_pads (GST_ELEMENT (demux)); - /* send initial newsegment - we wait till we know the first - incoming timestamp, so we can properly set the start of - the segment. */ - demux->need_newsegment = TRUE; - } - demux->cluster_time = GST_CLOCK_TIME_NONE; - demux->cluster_offset = demux->common.offset; - if (G_UNLIKELY (!demux->seek_first && demux->seek_block)) { - GST_DEBUG_OBJECT (demux, "seek target block %" G_GUINT64_FORMAT - " not found in Cluster, trying next Cluster's first block instead", - demux->seek_block); - demux->seek_block = 0; - } - demux->seek_first = FALSE; - /* record next cluster for recovery */ - if (read != G_MAXUINT64) - demux->next_cluster_offset = demux->cluster_offset + read; - /* eat cluster prefix */ - gst_matroska_demux_flush (demux, needed); - break; - case GST_MATROSKA_ID_CLUSTERTIMECODE: - { - guint64 num; - - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - if ((ret = gst_ebml_read_uint (&ebml, &id, &num)) != GST_FLOW_OK) - goto parse_failed; - GST_DEBUG_OBJECT (demux, "ClusterTimeCode: %" G_GUINT64_FORMAT, num); - demux->cluster_time = num; - if (demux->common.element_index) { - if (demux->common.element_index_writer_id == -1) - gst_index_get_writer_id (demux->common.element_index, - GST_OBJECT (demux), &demux->common.element_index_writer_id); - GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %" - G_GUINT64_FORMAT " for writer id %d", - GST_TIME_ARGS (demux->cluster_time), demux->cluster_offset, - demux->common.element_index_writer_id); - gst_index_add_association (demux->common.element_index, - demux->common.element_index_writer_id, - GST_ASSOCIATION_FLAG_KEY_UNIT, - GST_FORMAT_TIME, demux->cluster_time, - GST_FORMAT_BYTES, demux->cluster_offset, NULL); - } - break; - } - case GST_MATROSKA_ID_BLOCKGROUP: - if (!gst_matroska_demux_seek_block (demux)) - goto skip; - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - DEBUG_ELEMENT_START (demux, &ebml, "BlockGroup"); - if ((ret = gst_ebml_read_master (&ebml, &id)) == GST_FLOW_OK) { - ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux, - &ebml, demux->cluster_time, demux->cluster_offset, FALSE); - } - -#ifdef MKV_DEMUX_MODIFICATION - if ((demux->common.segment.rate < 0.0) && (demux->found_videokeyframe == TRUE) - && (demux->found_audioframe == TRUE) && (demux->current_ts >= demux->next_keyframe_ts) ) { - /* we displayed at least one one audio block and one video key frame - Now, goto previous cluster */ - int i =0; - int minusone = -1; - guint64 duration = 0; - GstClockTime time_position = 0; - GstMatroskaIndex *entry = NULL; - guint64 time=0; - - demux->next_keyframe_ts = demux->prev_keyframe_ts; - GST_INFO("next_keyframe_ts is %"GST_TIME_FORMAT, GST_TIME_ARGS(demux->next_keyframe_ts)); - demux->video_keyframe_pushed = FALSE; - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *stream = g_ptr_array_index (demux->common.src, i); - if (stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - GST_DEBUG ("video track duration = %"G_GUINT64_FORMAT"position = %"GST_TIME_FORMAT"\n", - stream->default_duration, GST_TIME_ARGS(stream->pos)); - duration = stream->default_duration; - time_position = stream->pos; - } - } - - if((time_position - (minusone *demux->common.segment.rate)*((double)duration/1000000000))> 0) { - time_position -= (minusone *demux->common.segment.rate)*((double)duration/1000000000); - } else { - time_position=0; - } - - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *stream = g_ptr_array_index (demux->common.src, i); - guint64 offset; - - GST_OBJECT_LOCK (demux); - if (stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - if ((entry = gst_matroska_read_common_do_index_seek (&demux->common, stream, time_position, NULL, NULL)) == NULL) { - GST_DEBUG_OBJECT (demux, "No matching seek entry in index"); - } else { - GST_DEBUG_OBJECT (demux, "pos = %"G_GUINT64_FORMAT", track = %d, block = %d, time = %"GST_TIME_FORMAT"\n", - entry->pos, entry->track, entry->block, GST_TIME_ARGS(entry->time)); - time = entry->time; - offset = entry->pos + demux->common.ebml_segment_start; - if (offset >= gst_matroska_read_common_get_length(&demux->common)) { - GST_INFO_OBJECT (demux, " Seek failed"); - goto seek_failed; - } - demux->common.offset = offset; - } - } - stream->pos = time; - stream->set_discont = TRUE; - stream->last_flow = GST_FLOW_OK; - if (stream->pos > 0.0) { - stream->eos = FALSE; - } else { - if(demux->is_eos_blockgroup == FALSE) { - demux->is_eos_blockgroup = TRUE; - } else { - stream->eos = TRUE; - GST_INFO_OBJECT (demux, "Reached EOS....."); - } - } - demux->common.segment.last_stop = time; - - GST_OBJECT_UNLOCK (demux); - } - - if (time == 0.0 && demux->is_eos_blockgroup == TRUE && demux->is_eos_simpleblock == TRUE) { - gst_segment_init (&demux->common.segment, GST_FORMAT_TIME); - gst_segment_set_duration (&demux->common.segment, GST_FORMAT_TIME, demux->duration); - - /* send new_segment event with start =0 and stop = duration */ - demux->new_segment = gst_event_new_new_segment_full (TRUE, - demux->common.segment.rate, demux->common.segment.applied_rate, demux->common.segment.format, - demux->common.segment.start, demux->common.segment.stop, demux->common.segment.time); - } - - demux->found_videokeyframe = FALSE; - demux->found_audioframe = FALSE; - demux->prev_keyframe_ts = time; - GST_INFO("prev_keyframe in blockgroup is %"GST_TIME_FORMAT,GST_TIME_ARGS(demux->prev_keyframe_ts)); - return ret; - } -#endif - - DEBUG_ELEMENT_STOP (demux, &ebml, "BlockGroup", ret); - break; - case GST_MATROSKA_ID_SIMPLEBLOCK: - if (!gst_matroska_demux_seek_block (demux)) - goto skip; - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - DEBUG_ELEMENT_START (demux, &ebml, "SimpleBlock"); - ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux, - &ebml, demux->cluster_time, demux->cluster_offset, TRUE); - -#ifdef MKV_DEMUX_MODIFICATION - if ((demux->common.segment.rate < 0.0) && (demux->found_videokeyframe == TRUE) && (demux->found_audioframe == TRUE) - && (demux->current_ts >= demux->next_keyframe_ts) ) { - /* we displayed at least one one audio block and one video key frame - Now, goto previous cluster */ - int i =0; - int minusone = -1; - guint64 duration = 0; - GstClockTime time_position=0; - GstMatroskaIndex *entry = NULL; - - demux->next_keyframe_ts = demux->prev_keyframe_ts; - GST_INFO("next_keyframe_ts is %"GST_TIME_FORMAT, GST_TIME_ARGS(demux->next_keyframe_ts)); - demux->video_keyframe_pushed = FALSE; - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *stream = g_ptr_array_index (demux->common.src, i); - if (stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - GST_DEBUG ("video track duration = %"G_GUINT64_FORMAT"position = %"GST_TIME_FORMAT"\n", - stream->default_duration, GST_TIME_ARGS(stream->pos)); - duration = stream->default_duration; - time_position = stream->pos; - } - } - - if((time_position - (minusone *demux->common.segment.rate)*((double)duration/1000000000))> 0) { - time_position -= (minusone *demux->common.segment.rate)*((double)duration/1000000000); - } else { - time_position=0; - } - - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *stream = g_ptr_array_index (demux->common.src, i); - guint64 offset; - - GST_OBJECT_LOCK (demux); - if (stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - if ((entry = gst_matroska_read_common_do_index_seek (&demux->common, stream, time_position, NULL, NULL)) == NULL) { - GST_DEBUG_OBJECT (demux, "No matching seek entry in index"); - } - - GST_DEBUG_OBJECT (demux, "pos = %"G_GUINT64_FORMAT", track = %d, block = %d, time = %"GST_TIME_FORMAT"\n", - entry->pos, entry->track, entry->block, GST_TIME_ARGS(entry->time)); - - /* seek (relative to matroska segment) */ - - offset = entry->pos + demux->common.ebml_segment_start; - if (offset >= gst_matroska_read_common_get_length(&demux->common)) { - GST_INFO_OBJECT (demux, " Seek failed"); - GST_OBJECT_UNLOCK (demux); - goto seek_failed; - } - demux->common.offset = offset; - } - - stream->pos = entry->time; - stream->set_discont = TRUE; - stream->last_flow = GST_FLOW_OK; - if (stream->pos > 0.0) { - stream->eos = FALSE; - } else { - if(demux->is_eos_simpleblock == FALSE) { - demux->is_eos_simpleblock = TRUE; - } else { - stream->eos = TRUE; - GST_INFO_OBJECT (demux, "Reached EOS....."); - } - } - demux->common.segment.last_stop = entry->time; - - GST_OBJECT_UNLOCK (demux); - } - - if (entry->time == 0.0 && demux->is_eos_simpleblock == TRUE && demux->is_eos_blockgroup == TRUE) { - gst_segment_init (&demux->common.segment, GST_FORMAT_TIME); - gst_segment_set_duration (&demux->common.segment, GST_FORMAT_TIME, demux->duration); - - /* send new_segment event with start =0 and stop = duration */ - demux->new_segment = gst_event_new_new_segment_full (TRUE, - demux->common.segment.rate, demux->common.segment.applied_rate, demux->common.segment.format, - demux->common.segment.start, demux->common.segment.stop, demux->common.segment.time); - } - - demux->found_videokeyframe = FALSE; - demux->found_audioframe = FALSE; - demux->prev_keyframe_ts = entry->time; - GST_INFO("prev_keyframe in simpleblock is %"GST_TIME_FORMAT,GST_TIME_ARGS(demux->prev_keyframe_ts)); - return ret; - } -#endif - - DEBUG_ELEMENT_STOP (demux, &ebml, "SimpleBlock", ret); - break; - case GST_MATROSKA_ID_ATTACHMENTS: - if (!demux->common.attachments_parsed) { - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_read_common_parse_attachments (&demux->common, - GST_ELEMENT_CAST (demux), &ebml); - } else { - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - } - break; - case GST_MATROSKA_ID_TAGS: - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_read_common_parse_metadata (&demux->common, - GST_ELEMENT_CAST (demux), &ebml); - break; - case GST_MATROSKA_ID_CHAPTERS: - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_read_common_parse_chapters (&demux->common, &ebml); - break; - case GST_MATROSKA_ID_SEEKHEAD: - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_demux_parse_contents (demux, &ebml); - break; - case GST_MATROSKA_ID_CUES: - if (demux->common.index_parsed) { - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - break; - } - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_read_common_parse_index (&demux->common, &ebml); - /* only push based; delayed index building */ - if (ret == GST_FLOW_OK - && demux->common.state == GST_MATROSKA_READ_STATE_SEEK) { - GstEvent *event; - - GST_OBJECT_LOCK (demux); - event = demux->seek_event; - demux->seek_event = NULL; - GST_OBJECT_UNLOCK (demux); - - g_assert (event); - /* unlikely to fail, since we managed to seek to this point */ - if (!gst_matroska_demux_handle_seek_event (demux, NULL, event)) - goto seek_failed; - /* resume data handling, main thread clear to seek again */ - GST_OBJECT_LOCK (demux); - demux->common.state = GST_MATROSKA_READ_STATE_DATA; - GST_OBJECT_UNLOCK (demux); - } - break; - case GST_MATROSKA_ID_POSITION: - case GST_MATROSKA_ID_PREVSIZE: - case GST_MATROSKA_ID_ENCRYPTEDBLOCK: - case GST_MATROSKA_ID_SILENTTRACKS: - GST_DEBUG_OBJECT (demux, - "Skipping Cluster subelement 0x%x - ignoring", id); - /* fall-through */ - default: - skip: - GST_DEBUG_OBJECT (demux, "skipping Element 0x%x", id); - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - break; - } - break; - } - - if (ret == GST_FLOW_PARSE) - goto parse_failed; - -exit: - gst_ebml_read_clear (&ebml); - return ret; - - /* ERRORS */ -read_error: - { - /* simply exit, maybe not enough data yet */ - /* no ebml to clear if read error */ - return ret; - } -parse_failed: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("Failed to parse Element 0x%x", id)); - ret = GST_FLOW_ERROR; - goto exit; - } -not_streamable: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("File layout does not permit streaming")); - ret = GST_FLOW_ERROR; - goto exit; - } -no_tracks: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("No Tracks element found")); - ret = GST_FLOW_ERROR; - goto exit; - } -invalid_header: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), ("Invalid header")); - ret = GST_FLOW_ERROR; - goto exit; - } -seek_failed: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), ("Failed to seek")); - ret = GST_FLOW_ERROR; - goto exit; - } -} - -static void -gst_matroska_demux_loop (GstPad * pad) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (pad)); - GstFlowReturn ret; - guint32 id; - guint64 length; - guint needed; - - /* If we have to close a segment, send a new segment to do this now */ - if (G_LIKELY (demux->common.state == GST_MATROSKA_READ_STATE_DATA)) { - if (G_UNLIKELY (demux->close_segment)) { - gst_matroska_demux_send_event (demux, demux->close_segment); - demux->close_segment = NULL; - } - if (G_UNLIKELY (demux->new_segment)) { - gst_matroska_demux_send_event (demux, demux->new_segment); - demux->new_segment = NULL; - } - } - - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret == GST_FLOW_UNEXPECTED) - goto eos; - if (ret != GST_FLOW_OK) { - if (gst_matroska_demux_check_parse_error (demux)) - goto pause; - else - return; - } - - GST_LOG_OBJECT (demux, "Offset %" G_GUINT64_FORMAT ", Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", needed %d", demux->common.offset, id, - length, needed); - - ret = gst_matroska_demux_parse_id (demux, id, length, needed); - if (ret == GST_FLOW_UNEXPECTED) - goto eos; - if (ret != GST_FLOW_OK) - goto pause; - - /* check if we're at the end of a configured segment */ - if (G_LIKELY (demux->common.src->len)) { - guint i; - - g_assert (demux->common.num_streams == demux->common.src->len); - for (i = 0; i < demux->common.src->len; i++) { - -#ifdef MKV_DEMUX_MODIFICATION -//Index table Creation Logic - if((demux->seek_head_cluster_info_absent || demux->seek_head_cue_info_absent) && !demux->index_table_created) { - GST_INFO("Index table needs to be created"); - - guint64 index_offset = demux->common.offset; - - GST_INFO("offset index is %"G_GUINT64_FORMAT, demux->common.offset); - demux->common.segment.duration = -1; - gst_matroska_demux_create_index_table(demux); - - demux->common.offset = index_offset; - demux->index_table_created = TRUE; - demux->common.segment.last_stop = 0; - demux->common.segment.duration = demux->duration; - GST_INFO("index table creation completed"); - } -#endif - GstMatroskaTrackContext *context = g_ptr_array_index (demux->common.src, i); - GST_DEBUG_OBJECT (context->pad, "pos %" GST_TIME_FORMAT, - GST_TIME_ARGS (context->pos)); - if (context->eos == FALSE) - goto next; - } - - GST_INFO_OBJECT (demux, "All streams are EOS"); - ret = GST_FLOW_UNEXPECTED; -#ifdef MKV_DEMUX_MODIFICATION - if(demux->is_eos_blockgroup || demux->is_eos_simpleblock) { - demux->seek_entry = 0; - } -#endif - goto eos; - } - -next: - if (G_UNLIKELY (demux->common.offset == - gst_matroska_read_common_get_length (&demux->common))) { - GST_LOG_OBJECT (demux, "Reached end of stream"); - ret = GST_FLOW_UNEXPECTED; - goto eos; - } - - return; - - /* ERRORS */ -eos: - { - if (demux->common.segment.rate < 0.0) { - ret = gst_matroska_demux_seek_to_previous_keyframe (demux); - if (ret == GST_FLOW_OK) - return; - } - /* fall-through */ - } -pause: - { - const gchar *reason = gst_flow_get_name (ret); - gboolean push_eos = FALSE; - - GST_LOG_OBJECT (demux, "pausing task, reason %s", reason); - demux->segment_running = FALSE; - gst_pad_pause_task (demux->common.sinkpad); - - if (ret == GST_FLOW_UNEXPECTED) { - /* perform EOS logic */ - - /* If we were in the headers, make sure we send no-more-pads. - This will ensure decodebin2 does not get stuck thinking - the chain is not complete yet, and waiting indefinitely. */ - if (G_UNLIKELY (demux->common.state == GST_MATROSKA_READ_STATE_HEADER)) { - if (demux->common.src->len == 0) { - GST_ELEMENT_ERROR (demux, STREAM, FAILED, (NULL), - ("No pads created")); - } else { - GST_ELEMENT_WARNING (demux, STREAM, DEMUX, (NULL), - ("Failed to finish reading headers")); - } - gst_element_no_more_pads (GST_ELEMENT (demux)); - } - - /* Close the segment, i.e. update segment stop with the duration - * if no stop was set */ - if (GST_CLOCK_TIME_IS_VALID (demux->last_stop_end) && - !GST_CLOCK_TIME_IS_VALID (demux->common.segment.stop) && - GST_CLOCK_TIME_IS_VALID (demux->common.segment.start) && - demux->last_stop_end > demux->common.segment.start) { - /* arrange to accumulate duration downstream, but avoid sending - * newsegment with decreasing start (w.r.t. sync newsegment events) */ - GstEvent *event = - gst_event_new_new_segment_full (TRUE, demux->common.segment.rate, - demux->common.segment.applied_rate, demux->common.segment.format, - demux->last_stop_end, demux->last_stop_end, - demux->common.segment.time + (demux->last_stop_end - - demux->common.segment.start)); - gst_matroska_demux_send_event (demux, event); - } - - if (demux->common.segment.flags & GST_SEEK_FLAG_SEGMENT) { - gint64 stop; - - /* for segment playback we need to post when (in stream time) - * we stopped, this is either stop (when set) or the duration. */ - if ((stop = demux->common.segment.stop) == -1) - stop = demux->last_stop_end; - - GST_LOG_OBJECT (demux, "Sending segment done, at end of segment"); - gst_element_post_message (GST_ELEMENT (demux), - gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME, - stop)); - } else { - push_eos = TRUE; - } - } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED) { - /* for fatal errors we post an error message */ - GST_ELEMENT_ERROR (demux, STREAM, FAILED, (NULL), - ("stream stopped, reason %s", reason)); - push_eos = TRUE; - } - if (push_eos) { - /* send EOS, and prevent hanging if no streams yet */ - GST_LOG_OBJECT (demux, "Sending EOS, at end of stream"); - if (!gst_matroska_demux_send_event (demux, gst_event_new_eos ()) && - (ret == GST_FLOW_UNEXPECTED)) { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, - (NULL), ("got eos but no streams (yet)")); - } - } - return; - } -} - -/* - * Create and push a flushing seek event upstream - */ -static gboolean -perform_seek_to_offset (GstMatroskaDemux * demux, guint64 offset) -{ - GstEvent *event; - gboolean res = 0; - - GST_DEBUG_OBJECT (demux, "Seeking to %" G_GUINT64_FORMAT, offset); - - event = - gst_event_new_seek (1.0, GST_FORMAT_BYTES, - GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset, - GST_SEEK_TYPE_NONE, -1); - - res = gst_pad_push_event (demux->common.sinkpad, event); - - /* newsegment event will update offset */ - return res; -} - -static GstFlowReturn -gst_matroska_demux_chain (GstPad * pad, GstBuffer * buffer) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (pad)); - guint available; - GstFlowReturn ret = GST_FLOW_OK; - guint needed = 0; - guint32 id; - guint64 length; - - if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buffer))) { - GST_DEBUG_OBJECT (demux, "got DISCONT"); - gst_adapter_clear (demux->common.adapter); - GST_OBJECT_LOCK (demux); - gst_matroska_read_common_reset_streams (&demux->common, - GST_CLOCK_TIME_NONE, FALSE); - GST_OBJECT_UNLOCK (demux); - } - - gst_adapter_push (demux->common.adapter, buffer); - buffer = NULL; - -next: - available = gst_adapter_available (demux->common.adapter); - - ret = gst_matroska_read_common_peek_id_length_push (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)) - return ret; - - GST_LOG_OBJECT (demux, "Offset %" G_GUINT64_FORMAT ", Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", needed %d, available %d", - demux->common.offset, id, length, needed, available); - - if (needed > available) - return GST_FLOW_OK; - - ret = gst_matroska_demux_parse_id (demux, id, length, needed); - if (ret == GST_FLOW_UNEXPECTED) { - /* need more data */ - return GST_FLOW_OK; - } else if (ret != GST_FLOW_OK) { - return ret; - } else - goto next; -} - -static gboolean -gst_matroska_demux_handle_sink_event (GstPad * pad, GstEvent * event) -{ - gboolean res = TRUE; - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (pad)); - - GST_DEBUG_OBJECT (demux, - "have event type %s: %p on sink pad", GST_EVENT_TYPE_NAME (event), event); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_NEWSEGMENT: - { - GstFormat format; - gdouble rate, arate; - gint64 start, stop, time = 0; - gboolean update; - GstSegment segment; - - /* some debug output */ - gst_segment_init (&segment, GST_FORMAT_UNDEFINED); - gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format, - &start, &stop, &time); - gst_segment_set_newsegment_full (&segment, update, rate, arate, format, - start, stop, time); - GST_DEBUG_OBJECT (demux, - "received format %d newsegment %" GST_SEGMENT_FORMAT, format, - &segment); - - if (demux->common.state < GST_MATROSKA_READ_STATE_DATA) { - GST_DEBUG_OBJECT (demux, "still starting"); - goto exit; - } - - /* we only expect a BYTE segment, e.g. following a seek */ - if (format != GST_FORMAT_BYTES) { - GST_DEBUG_OBJECT (demux, "unsupported segment format, ignoring"); - goto exit; - } - - GST_DEBUG_OBJECT (demux, "clearing segment state"); - GST_OBJECT_LOCK (demux); - /* clear current segment leftover */ - gst_adapter_clear (demux->common.adapter); - /* and some streaming setup */ - demux->common.offset = start; - /* do not know where we are; - * need to come across a cluster and generate newsegment */ - demux->common.segment.last_stop = GST_CLOCK_TIME_NONE; - demux->cluster_time = GST_CLOCK_TIME_NONE; - demux->cluster_offset = 0; - demux->need_newsegment = TRUE; - /* but keep some of the upstream segment */ - demux->common.segment.rate = rate; - GST_OBJECT_UNLOCK (demux); - exit: - /* chain will send initial newsegment after pads have been added, - * or otherwise come up with one */ - GST_DEBUG_OBJECT (demux, "eating event"); - gst_event_unref (event); - res = TRUE; - break; - } - case GST_EVENT_EOS: - { - if (demux->common.state != GST_MATROSKA_READ_STATE_DATA) { - gst_event_unref (event); - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, - (NULL), ("got eos and didn't receive a complete header object")); - } else if (demux->common.num_streams == 0) { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, - (NULL), ("got eos but no streams (yet)")); - } else { - gst_matroska_demux_send_event (demux, event); - } - break; - } - case GST_EVENT_FLUSH_STOP: - { - gst_adapter_clear (demux->common.adapter); - GST_OBJECT_LOCK (demux); - gst_matroska_read_common_reset_streams (&demux->common, - GST_CLOCK_TIME_NONE, TRUE); - demux->common.segment.last_stop = GST_CLOCK_TIME_NONE; - demux->cluster_time = GST_CLOCK_TIME_NONE; - demux->cluster_offset = 0; - GST_OBJECT_UNLOCK (demux); - /* fall-through */ - } - default: - res = gst_pad_event_default (pad, event); - break; - } - - return res; -} - -static gboolean -gst_matroska_demux_sink_activate (GstPad * sinkpad) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (sinkpad)); - - if (gst_pad_check_pull_range (sinkpad)) { - GST_DEBUG ("going to pull mode"); - demux->streaming = FALSE; - return gst_pad_activate_pull (sinkpad, TRUE); - } else { - GST_DEBUG ("going to push (streaming) mode"); - demux->streaming = TRUE; - return gst_pad_activate_push (sinkpad, TRUE); - } - - return FALSE; -} - -static gboolean -gst_matroska_demux_sink_activate_pull (GstPad * sinkpad, gboolean active) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (sinkpad)); - - if (active) { - /* if we have a scheduler we can start the task */ - demux->segment_running = TRUE; - gst_pad_start_task (sinkpad, (GstTaskFunction) gst_matroska_demux_loop, - sinkpad); - } else { - demux->segment_running = FALSE; - gst_pad_stop_task (sinkpad); - } - - return TRUE; -} - -static void -gst_duration_to_fraction (guint64 duration, gint * dest_n, gint * dest_d) -{ - static const int common_den[] = { 1, 2, 3, 4, 1001 }; - int n, d; - int i; - guint64 a; - - for (i = 0; i < G_N_ELEMENTS (common_den); i++) { - d = common_den[i]; - n = floor (0.5 + (d * 1e9) / duration); - a = gst_util_uint64_scale_int (1000000000, d, n); - if (duration >= a - 1 && duration <= a + 1) { - goto out; - } - } - - gst_util_double_to_fraction (1e9 / duration, &n, &d); - -out: - /* set results */ - *dest_n = n; - *dest_d = d; -} - -static GstCaps * -gst_matroska_demux_video_caps (GstMatroskaTrackVideoContext * - videocontext, const gchar * codec_id, guint8 * data, guint size, - gchar ** codec_name, guint32 * riff_fourcc) -{ - GstMatroskaTrackContext *context = (GstMatroskaTrackContext *) videocontext; - GstCaps *caps = NULL; - - g_assert (videocontext != NULL); - g_assert (codec_name != NULL); - - context->send_xiph_headers = FALSE; - context->send_flac_headers = FALSE; - context->send_speex_headers = FALSE; - - if (riff_fourcc) - *riff_fourcc = 0; - - /* TODO: check if we have all codec types from matroska-ids.h - * check if we have to do more special things with codec_private - * - * Add support for - * GST_MATROSKA_CODEC_ID_VIDEO_QUICKTIME - * GST_MATROSKA_CODEC_ID_VIDEO_SNOW - */ - - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_VFW_FOURCC)) { - gst_riff_strf_vids *vids = NULL; - - if (data) { - GstBuffer *buf = NULL; - - vids = (gst_riff_strf_vids *) data; - - /* assure size is big enough */ - if (size < 24) { - GST_WARNING ("Too small BITMAPINFOHEADER (%d bytes)", size); - return NULL; - } - if (size < sizeof (gst_riff_strf_vids)) { - vids = g_new (gst_riff_strf_vids, 1); - memcpy (vids, data, size); - } - - /* little-endian -> byte-order */ - vids->size = GUINT32_FROM_LE (vids->size); - vids->width = GUINT32_FROM_LE (vids->width); - vids->height = GUINT32_FROM_LE (vids->height); - vids->planes = GUINT16_FROM_LE (vids->planes); - vids->bit_cnt = GUINT16_FROM_LE (vids->bit_cnt); - vids->compression = GUINT32_FROM_LE (vids->compression); - vids->image_size = GUINT32_FROM_LE (vids->image_size); - vids->xpels_meter = GUINT32_FROM_LE (vids->xpels_meter); - vids->ypels_meter = GUINT32_FROM_LE (vids->ypels_meter); - vids->num_colors = GUINT32_FROM_LE (vids->num_colors); - vids->imp_colors = GUINT32_FROM_LE (vids->imp_colors); - - if (size > sizeof (gst_riff_strf_vids)) { /* some extra_data */ - buf = gst_buffer_new_and_alloc (size - sizeof (gst_riff_strf_vids)); - memcpy (GST_BUFFER_DATA (buf), - (guint8 *) vids + sizeof (gst_riff_strf_vids), - GST_BUFFER_SIZE (buf)); - } - - if (riff_fourcc) - *riff_fourcc = vids->compression; - - caps = gst_riff_create_video_caps (vids->compression, NULL, vids, - buf, NULL, codec_name); - - if (caps == NULL) { - GST_WARNING ("Unhandled RIFF fourcc %" GST_FOURCC_FORMAT, - GST_FOURCC_ARGS (vids->compression)); - } - - if (buf) - gst_buffer_unref (buf); - - if (vids != (gst_riff_strf_vids *) data) - g_free (vids); - } - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_UNCOMPRESSED)) { - guint32 fourcc = 0; - - switch (videocontext->fourcc) { - case GST_MAKE_FOURCC ('I', '4', '2', '0'): - *codec_name = g_strdup ("Raw planar YUV 4:2:0"); - fourcc = videocontext->fourcc; - break; - case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'): - *codec_name = g_strdup ("Raw packed YUV 4:2:2"); - fourcc = videocontext->fourcc; - break; - case GST_MAKE_FOURCC ('Y', 'V', '1', '2'): - *codec_name = g_strdup ("Raw packed YUV 4:2:0"); - fourcc = videocontext->fourcc; - break; - case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'): - *codec_name = g_strdup ("Raw packed YUV 4:2:2"); - fourcc = videocontext->fourcc; - break; - case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'): - *codec_name = g_strdup ("Raw packed YUV 4:4:4 with alpha channel"); - fourcc = videocontext->fourcc; - break; - - default: - GST_DEBUG ("Unknown fourcc %" GST_FOURCC_FORMAT, - GST_FOURCC_ARGS (videocontext->fourcc)); - return NULL; - } - - caps = gst_caps_new_simple ("video/x-raw-yuv", - "format", GST_TYPE_FOURCC, fourcc, NULL); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_SP)) { - caps = gst_caps_new_simple ("video/x-divx", - "divxversion", G_TYPE_INT, 4, NULL); - *codec_name = g_strdup ("MPEG-4 simple profile"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP) || - !strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AP)) { -#if 0 - caps = gst_caps_new_full (gst_structure_new ("video/x-divx", - "divxversion", G_TYPE_INT, 5, NULL), - gst_structure_new ("video/x-xvid", NULL), - gst_structure_new ("video/mpeg", - "mpegversion", G_TYPE_INT, 4, - "systemstream", G_TYPE_BOOLEAN, FALSE, NULL), NULL); -#endif - caps = gst_caps_new_simple ("video/mpeg", - "mpegversion", G_TYPE_INT, 4, - "systemstream", G_TYPE_BOOLEAN, FALSE, NULL); - if (data) { - GstBuffer *priv = gst_buffer_new_and_alloc (size); - - memcpy (GST_BUFFER_DATA (priv), data, size); - gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL); - gst_buffer_unref (priv); - } - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP)) - *codec_name = g_strdup ("MPEG-4 advanced simple profile"); - else - *codec_name = g_strdup ("MPEG-4 advanced profile"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MSMPEG4V3)) { -#if 0 - caps = gst_caps_new_full (gst_structure_new ("video/x-divx", - "divxversion", G_TYPE_INT, 3, NULL), - gst_structure_new ("video/x-msmpeg", - "msmpegversion", G_TYPE_INT, 43, NULL), NULL); -#endif - caps = gst_caps_new_simple ("video/x-msmpeg", - "msmpegversion", G_TYPE_INT, 43, NULL); - *codec_name = g_strdup ("Microsoft MPEG-4 v.3"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG1) || - !strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG2)) { - gint mpegversion; - - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG1)) - mpegversion = 1; - else - mpegversion = 2; - - caps = gst_caps_new_simple ("video/mpeg", - "systemstream", G_TYPE_BOOLEAN, FALSE, - "mpegversion", G_TYPE_INT, mpegversion, NULL); - *codec_name = g_strdup_printf ("MPEG-%d video", mpegversion); - context->postprocess_frame = gst_matroska_demux_add_mpeg_seq_header; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MJPEG)) { - caps = gst_caps_new_simple ("image/jpeg", NULL); - *codec_name = g_strdup ("Motion-JPEG"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AVC)) { - caps = gst_caps_new_simple ("video/x-h264", NULL); - if (data) { - GstBuffer *priv = gst_buffer_new_and_alloc (size); - - /* First byte is the version, second is the profile indication, and third - * is the 5 contraint_set_flags and 3 reserved bits. Fourth byte is the - * level indication. */ - gst_codec_utils_h264_caps_set_level_and_profile (caps, data + 1, - size - 1); - - memcpy (GST_BUFFER_DATA (priv), data, size); - gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL); - gst_buffer_unref (priv); - - gst_caps_set_simple (caps, "stream-format", G_TYPE_STRING, "avc", - "alignment", G_TYPE_STRING, "au", NULL); - } else { - GST_WARNING ("No codec data found, assuming output is byte-stream"); - gst_caps_set_simple (caps, "stream-format", G_TYPE_STRING, "byte-stream", - NULL); - } - *codec_name = g_strdup ("H264"); - } else if ((!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1)) || - (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2)) || - (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3)) || - (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4))) { - gint rmversion = -1; - - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1)) - rmversion = 1; - else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2)) - rmversion = 2; - else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3)) - rmversion = 3; - else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4)) - rmversion = 4; - - caps = gst_caps_new_simple ("video/x-pn-realvideo", - "rmversion", G_TYPE_INT, rmversion, NULL); - GST_DEBUG ("data:%p, size:0x%x", data, size); - /* We need to extract the extradata ! */ - if (data && (size >= 0x22)) { - GstBuffer *priv; - guint rformat; - guint subformat; - - subformat = GST_READ_UINT32_BE (data + 0x1a); - rformat = GST_READ_UINT32_BE (data + 0x1e); - - priv = gst_buffer_new_and_alloc (size - 0x1a); - - memcpy (GST_BUFFER_DATA (priv), data + 0x1a, size - 0x1a); - gst_caps_set_simple (caps, - "codec_data", GST_TYPE_BUFFER, priv, - "format", G_TYPE_INT, rformat, - "subformat", G_TYPE_INT, subformat, NULL); - gst_buffer_unref (priv); - - } - *codec_name = g_strdup_printf ("RealVideo %d.0", rmversion); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_THEORA)) { - caps = gst_caps_new_simple ("video/x-theora", NULL); - context->send_xiph_headers = TRUE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_DIRAC)) { - caps = gst_caps_new_simple ("video/x-dirac", NULL); - *codec_name = g_strdup_printf ("Dirac"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_VP8)) { - caps = gst_caps_new_simple ("video/x-vp8", NULL); - *codec_name = g_strdup_printf ("On2 VP8"); - } else { - GST_WARNING ("Unknown codec '%s', cannot build Caps", codec_id); - return NULL; - } - - if (caps != NULL) { - int i; - GstStructure *structure; - - for (i = 0; i < gst_caps_get_size (caps); i++) { - structure = gst_caps_get_structure (caps, i); - - /* FIXME: use the real unit here! */ - GST_DEBUG ("video size %dx%d, target display size %dx%d (any unit)", - videocontext->pixel_width, - videocontext->pixel_height, - videocontext->display_width, videocontext->display_height); - - /* pixel width and height are the w and h of the video in pixels */ - if (videocontext->pixel_width > 0 && videocontext->pixel_height > 0) { - gint w = videocontext->pixel_width; - gint h = videocontext->pixel_height; - - gst_structure_set (structure, - "width", G_TYPE_INT, w, "height", G_TYPE_INT, h, NULL); - } - - if (videocontext->display_width > 0 || videocontext->display_height > 0) { - int n, d; - - if (videocontext->display_width <= 0) - videocontext->display_width = videocontext->pixel_width; - if (videocontext->display_height <= 0) - videocontext->display_height = videocontext->pixel_height; - - /* calculate the pixel aspect ratio using the display and pixel w/h */ - n = videocontext->display_width * videocontext->pixel_height; - d = videocontext->display_height * videocontext->pixel_width; - GST_DEBUG ("setting PAR to %d/%d", n, d); - gst_structure_set (structure, "pixel-aspect-ratio", - GST_TYPE_FRACTION, - videocontext->display_width * videocontext->pixel_height, - videocontext->display_height * videocontext->pixel_width, NULL); - } - - if (videocontext->default_fps > 0.0) { - GValue fps_double = { 0, }; - GValue fps_fraction = { 0, }; - - g_value_init (&fps_double, G_TYPE_DOUBLE); - g_value_init (&fps_fraction, GST_TYPE_FRACTION); - g_value_set_double (&fps_double, videocontext->default_fps); - g_value_transform (&fps_double, &fps_fraction); - - GST_DEBUG ("using default fps %f", videocontext->default_fps); - - gst_structure_set_value (structure, "framerate", &fps_fraction); - g_value_unset (&fps_double); - g_value_unset (&fps_fraction); - } else if (context->default_duration > 0) { - int fps_n, fps_d; - - gst_duration_to_fraction (context->default_duration, &fps_n, &fps_d); - - GST_INFO ("using default duration %" G_GUINT64_FORMAT - " framerate %d/%d", context->default_duration, fps_n, fps_d); - - gst_structure_set (structure, "framerate", GST_TYPE_FRACTION, - fps_n, fps_d, NULL); - } else { - /* sort of a hack to get most codecs to support, - * even if the default_duration is missing */ - gst_structure_set (structure, "framerate", GST_TYPE_FRACTION, - 25, 1, NULL); - } - - if (videocontext->parent.flags & GST_MATROSKA_VIDEOTRACK_INTERLACED) - gst_structure_set (structure, "interlaced", G_TYPE_BOOLEAN, TRUE, NULL); - } - - gst_caps_do_simplify (caps); - } - - return caps; -} - -/* - * Some AAC specific code... *sigh* - * FIXME: maybe we should use '15' and code the sample rate explicitly - * if the sample rate doesn't match the predefined rates exactly? (tpm) - */ - -static gint -aac_rate_idx (gint rate) -{ - if (92017 <= rate) - return 0; - else if (75132 <= rate) - return 1; - else if (55426 <= rate) - return 2; - else if (46009 <= rate) - return 3; - else if (37566 <= rate) - return 4; - else if (27713 <= rate) - return 5; - else if (23004 <= rate) - return 6; - else if (18783 <= rate) - return 7; - else if (13856 <= rate) - return 8; - else if (11502 <= rate) - return 9; - else if (9391 <= rate) - return 10; - else - return 11; -} - -static gint -aac_profile_idx (const gchar * codec_id) -{ - gint profile; - - if (strlen (codec_id) <= 12) - profile = 3; - else if (!strncmp (&codec_id[12], "MAIN", 4)) - profile = 0; - else if (!strncmp (&codec_id[12], "LC", 2)) - profile = 1; - else if (!strncmp (&codec_id[12], "SSR", 3)) - profile = 2; - else - profile = 3; - - return profile; -} - -#define AAC_SYNC_EXTENSION_TYPE 0x02b7 - -static GstCaps * -gst_matroska_demux_audio_caps (GstMatroskaTrackAudioContext * - audiocontext, const gchar * codec_id, guint8 * data, guint size, - gchar ** codec_name, guint16 * riff_audio_fmt) -{ - GstMatroskaTrackContext *context = (GstMatroskaTrackContext *) audiocontext; - GstCaps *caps = NULL; - - g_assert (audiocontext != NULL); - g_assert (codec_name != NULL); - - if (riff_audio_fmt) - *riff_audio_fmt = 0; - - context->send_xiph_headers = FALSE; - context->send_flac_headers = FALSE; - context->send_speex_headers = FALSE; - - /* TODO: check if we have all codec types from matroska-ids.h - * check if we have to do more special things with codec_private - * check if we need bitdepth in different places too - * implement channel position magic - * Add support for: - * GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID9 - * GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID10 - * GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDMC - * GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDM2 - */ - - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1) || - !strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2) || - !strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L3)) { - gint layer; - - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1)) - layer = 1; - else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2)) - layer = 2; - else - layer = 3; - - caps = gst_caps_new_simple ("audio/mpeg", - "mpegversion", G_TYPE_INT, 1, "layer", G_TYPE_INT, layer, NULL); - *codec_name = g_strdup_printf ("MPEG-1 layer %d", layer); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE) || - !strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_LE)) { - gint endianness; - - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE)) - endianness = G_BIG_ENDIAN; - else - endianness = G_LITTLE_ENDIAN; - - caps = gst_caps_new_simple ("audio/x-raw-int", - "width", G_TYPE_INT, audiocontext->bitdepth, - "depth", G_TYPE_INT, audiocontext->bitdepth, - "signed", G_TYPE_BOOLEAN, audiocontext->bitdepth != 8, - "endianness", G_TYPE_INT, endianness, NULL); - - *codec_name = g_strdup_printf ("Raw %d-bit PCM audio", - audiocontext->bitdepth); - context->alignment = audiocontext->bitdepth / 8; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_FLOAT)) { - caps = gst_caps_new_simple ("audio/x-raw-float", - "endianness", G_TYPE_INT, G_LITTLE_ENDIAN, - "width", G_TYPE_INT, audiocontext->bitdepth, NULL); - *codec_name = g_strdup_printf ("Raw %d-bit floating-point audio", - audiocontext->bitdepth); - context->alignment = audiocontext->bitdepth / 8; - } else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AC3, - strlen (GST_MATROSKA_CODEC_ID_AUDIO_AC3))) { - caps = gst_caps_new_simple ("audio/x-ac3", - "framed", G_TYPE_BOOLEAN, TRUE, NULL); - *codec_name = g_strdup ("AC-3 audio"); - } else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_EAC3, - strlen (GST_MATROSKA_CODEC_ID_AUDIO_EAC3))) { - caps = gst_caps_new_simple ("audio/x-eac3", - "framed", G_TYPE_BOOLEAN, TRUE, NULL); - *codec_name = g_strdup ("E-AC-3 audio"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_DTS)) { - caps = gst_caps_new_simple ("audio/x-dts", NULL); - *codec_name = g_strdup ("DTS audio"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_VORBIS)) { - caps = gst_caps_new_simple ("audio/x-vorbis", NULL); - context->send_xiph_headers = TRUE; - /* vorbis decoder does tags */ - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_FLAC)) { - caps = gst_caps_new_simple ("audio/x-flac", NULL); - context->send_flac_headers = TRUE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_SPEEX)) { - caps = gst_caps_new_simple ("audio/x-speex", NULL); - context->send_speex_headers = TRUE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_ACM)) { - gst_riff_strf_auds auds; - - if (data) { - GstBuffer *codec_data = gst_buffer_new (); - - /* little-endian -> byte-order */ - auds.format = GST_READ_UINT16_LE (data); - auds.channels = GST_READ_UINT16_LE (data + 2); - auds.rate = GST_READ_UINT32_LE (data + 4); - auds.av_bps = GST_READ_UINT32_LE (data + 8); - auds.blockalign = GST_READ_UINT16_LE (data + 12); - auds.size = GST_READ_UINT16_LE (data + 16); - - /* 18 is the waveformatex size */ - gst_buffer_set_data (codec_data, data + 18, auds.size); - - if (riff_audio_fmt) - *riff_audio_fmt = auds.format; - - caps = gst_riff_create_audio_caps (auds.format, NULL, &auds, NULL, - codec_data, codec_name); - gst_buffer_unref (codec_data); - - if (caps == NULL) { - GST_WARNING ("Unhandled RIFF audio format 0x%02x", auds.format); - } - } - } else if (g_str_has_prefix (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC)) { - GstBuffer *priv = NULL; - gint mpegversion; - gint rate_idx, profile; - guint8 *data = NULL; - - /* unspecified AAC profile with opaque private codec data */ - if (strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC) == 0) { - if (context->codec_priv_size >= 2) { - guint obj_type, freq_index, explicit_freq_bytes = 0; - - codec_id = GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4; - mpegversion = 4; - freq_index = (GST_READ_UINT16_BE (context->codec_priv) & 0x780) >> 7; - obj_type = (GST_READ_UINT16_BE (context->codec_priv) & 0xF800) >> 11; - if (freq_index == 15) - explicit_freq_bytes = 3; - GST_DEBUG ("obj_type = %u, freq_index = %u", obj_type, freq_index); - priv = gst_buffer_new_and_alloc (context->codec_priv_size); - memcpy (GST_BUFFER_DATA (priv), context->codec_priv, - context->codec_priv_size); - /* assume SBR if samplerate <= 24kHz */ - if (obj_type == 5 || (freq_index >= 6 && freq_index != 15) || - (context->codec_priv_size == (5 + explicit_freq_bytes))) { - audiocontext->samplerate *= 2; - } - } else { - GST_WARNING ("Opaque A_AAC codec ID, but no codec private data"); - /* this is pretty broken; - * maybe we need to make up some default private, - * or maybe ADTS data got dumped in. - * Let's set up some private data now, and check actual data later */ - /* just try this and see what happens ... */ - codec_id = GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4; - context->postprocess_frame = gst_matroska_demux_check_aac; - } - } - - /* make up decoder-specific data if it is not supplied */ - if (priv == NULL) { - priv = gst_buffer_new_and_alloc (5); - data = GST_BUFFER_DATA (priv); - rate_idx = aac_rate_idx (audiocontext->samplerate); - profile = aac_profile_idx (codec_id); - - data[0] = ((profile + 1) << 3) | ((rate_idx & 0xE) >> 1); - data[1] = ((rate_idx & 0x1) << 7) | (audiocontext->channels << 3); - GST_BUFFER_SIZE (priv) = 2; - - if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2, - strlen (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2))) { - mpegversion = 2; - } else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4, - strlen (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4))) { - mpegversion = 4; - - if (g_strrstr (codec_id, "SBR")) { - /* HE-AAC (aka SBR AAC) */ - audiocontext->samplerate *= 2; - rate_idx = aac_rate_idx (audiocontext->samplerate); - data[2] = AAC_SYNC_EXTENSION_TYPE >> 3; - data[3] = ((AAC_SYNC_EXTENSION_TYPE & 0x07) << 5) | 5; - data[4] = (1 << 7) | (rate_idx << 3); - GST_BUFFER_SIZE (priv) = 5; - } - } else { - gst_buffer_unref (priv); - priv = NULL; - GST_ERROR ("Unknown AAC profile and no codec private data"); - } - } - - if (priv) { - caps = gst_caps_new_simple ("audio/mpeg", - "mpegversion", G_TYPE_INT, mpegversion, - "framed", G_TYPE_BOOLEAN, TRUE, NULL); - gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL); - *codec_name = g_strdup_printf ("MPEG-%d AAC audio", mpegversion); - gst_buffer_unref (priv); - } - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_TTA)) { - caps = gst_caps_new_simple ("audio/x-tta", - "width", G_TYPE_INT, audiocontext->bitdepth, NULL); - *codec_name = g_strdup ("TTA audio"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_WAVPACK4)) { - caps = gst_caps_new_simple ("audio/x-wavpack", - "width", G_TYPE_INT, audiocontext->bitdepth, - "framed", G_TYPE_BOOLEAN, TRUE, NULL); - *codec_name = g_strdup ("Wavpack audio"); - context->postprocess_frame = gst_matroska_demux_add_wvpk_header; - audiocontext->wvpk_block_index = 0; - } else if ((!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4)) || - (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4)) || - (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK))) { - gint raversion = -1; - - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4)) - raversion = 1; - else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK)) - raversion = 8; - else - raversion = 2; - - caps = gst_caps_new_simple ("audio/x-pn-realaudio", - "raversion", G_TYPE_INT, raversion, NULL); - /* Extract extra information from caps, mapping varies based on codec */ - if (data && (size >= 0x50)) { - GstBuffer *priv; - guint flavor; - guint packet_size; - guint height; - guint leaf_size; - guint sample_width; - guint extra_data_size; - - GST_ERROR ("real audio raversion:%d", raversion); - if (raversion == 8) { - /* COOK */ - flavor = GST_READ_UINT16_BE (data + 22); - packet_size = GST_READ_UINT32_BE (data + 24); - height = GST_READ_UINT16_BE (data + 40); - leaf_size = GST_READ_UINT16_BE (data + 44); - sample_width = GST_READ_UINT16_BE (data + 58); - extra_data_size = GST_READ_UINT32_BE (data + 74); - - GST_ERROR - ("flavor:%d, packet_size:%d, height:%d, leaf_size:%d, sample_width:%d, extra_data_size:%d", - flavor, packet_size, height, leaf_size, sample_width, - extra_data_size); - gst_caps_set_simple (caps, "flavor", G_TYPE_INT, flavor, "packet_size", - G_TYPE_INT, packet_size, "height", G_TYPE_INT, height, "leaf_size", - G_TYPE_INT, leaf_size, "width", G_TYPE_INT, sample_width, NULL); - - if ((size - 78) >= extra_data_size) { - priv = gst_buffer_new_and_alloc (extra_data_size); - memcpy (GST_BUFFER_DATA (priv), data + 78, extra_data_size); - gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL); - gst_buffer_unref (priv); - } - } - } - - *codec_name = g_strdup_printf ("RealAudio %d.0", raversion); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_SIPR)) { - caps = gst_caps_new_simple ("audio/x-sipro", NULL); - *codec_name = g_strdup ("Sipro/ACELP.NET Voice Codec"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_RALF)) { - caps = gst_caps_new_simple ("audio/x-ralf-mpeg4-generic", NULL); - *codec_name = g_strdup ("Real Audio Lossless"); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_ATRC)) { - caps = gst_caps_new_simple ("audio/x-vnd.sony.atrac3", NULL); - *codec_name = g_strdup ("Sony ATRAC3"); - } else { - GST_WARNING ("Unknown codec '%s', cannot build Caps", codec_id); - return NULL; - } - - if (caps != NULL) { - if (audiocontext->samplerate > 0 && audiocontext->channels > 0) { - gint i; - - for (i = 0; i < gst_caps_get_size (caps); i++) { - gst_structure_set (gst_caps_get_structure (caps, i), - "channels", G_TYPE_INT, audiocontext->channels, - "rate", G_TYPE_INT, audiocontext->samplerate, NULL); - } - } - - gst_caps_do_simplify (caps); - } - - return caps; -} - -static GstCaps * -gst_matroska_demux_subtitle_caps (GstMatroskaTrackSubtitleContext * - subtitlecontext, const gchar * codec_id, gpointer data, guint size) -{ - GstCaps *caps = NULL; - GstMatroskaTrackContext *context = - (GstMatroskaTrackContext *) subtitlecontext; - - /* for backwards compatibility */ - if (!g_ascii_strcasecmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_ASCII)) - codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_UTF8; - else if (!g_ascii_strcasecmp (codec_id, "S_SSA")) - codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_SSA; - else if (!g_ascii_strcasecmp (codec_id, "S_ASS")) - codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_ASS; - else if (!g_ascii_strcasecmp (codec_id, "S_USF")) - codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_USF; - - /* TODO: Add GST_MATROSKA_CODEC_ID_SUBTITLE_BMP support - * Check if we have to do something with codec_private */ - if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_UTF8)) { - /* well, plain text simply does not have a lot of markup ... */ - caps = gst_caps_new_simple ("text/x-pango-markup", NULL); - context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer; - subtitlecontext->check_markup = TRUE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_SSA)) { - caps = gst_caps_new_simple ("application/x-ssa", NULL); - context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer; - subtitlecontext->check_markup = FALSE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_ASS)) { - caps = gst_caps_new_simple ("application/x-ass", NULL); - context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer; - subtitlecontext->check_markup = FALSE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_USF)) { - caps = gst_caps_new_simple ("application/x-usf", NULL); - context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer; - subtitlecontext->check_markup = FALSE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_VOBSUB)) { - caps = gst_caps_new_simple ("video/x-dvd-subpicture", NULL); - ((GstMatroskaTrackContext *) subtitlecontext)->send_dvd_event = TRUE; - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_HDMVPGS)) { - caps = gst_caps_new_simple ("subpicture/x-pgs", NULL); - } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_KATE)) { - caps = gst_caps_new_simple ("subtitle/x-kate", NULL); - context->send_xiph_headers = TRUE; - } else { - GST_DEBUG ("Unknown subtitle stream: codec_id='%s'", codec_id); - caps = gst_caps_new_simple ("application/x-subtitle-unknown", NULL); - } - - if (data != NULL && size > 0) { - GstBuffer *buf; - - buf = gst_buffer_new_and_alloc (size); - memcpy (GST_BUFFER_DATA (buf), data, size); - gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, buf, NULL); - gst_buffer_unref (buf); - } - - return caps; -} - -static void -gst_matroska_demux_set_index (GstElement * element, GstIndex * index) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element); - - GST_OBJECT_LOCK (demux); - if (demux->common.element_index) - gst_object_unref (demux->common.element_index); - demux->common.element_index = index ? gst_object_ref (index) : NULL; - GST_OBJECT_UNLOCK (demux); - GST_DEBUG_OBJECT (demux, "Set index %" GST_PTR_FORMAT, - demux->common.element_index); -} - -static GstIndex * -gst_matroska_demux_get_index (GstElement * element) -{ - GstIndex *result = NULL; - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element); - - GST_OBJECT_LOCK (demux); - if (demux->common.element_index) - result = gst_object_ref (demux->common.element_index); - GST_OBJECT_UNLOCK (demux); - - GST_DEBUG_OBJECT (demux, "Returning index %" GST_PTR_FORMAT, result); - - return result; -} - - -#ifdef MKV_DEMUX_MODIFICATION -static GstMatroskaIndex * -gst_matroska_demux_get_next_index (GstMatroskaDemux * demux, GstMatroskaTrackContext * track, GstMatroskaIndex *entry) -{ - int i =0; - GArray *index; - GstMatroskaIndex *tmp = NULL; - - /* find entry just before or at the requested position */ - if (track && track->index_table) - index = track->index_table; - else - index = demux->common.index; - - for (i=0; i < index->len; i++) { - tmp = &g_array_index (index, GstMatroskaIndex, i); - if ((tmp->time == entry->time) && (tmp->pos == entry->pos)) { - if ((index->len - i) == 1) { - GST_DEBUG_OBJECT (demux, "entry found in last index...returning last index"); - } else { - GST_DEBUG_OBJECT (demux, "Found entry at index = %d"); - i = i+1; - tmp = &g_array_index (index, GstMatroskaIndex, i); - } - return tmp; - } - } - return NULL; -} - -static GstFlowReturn -gst_matroska_demux_trickplay_find_tracks (GstMatroskaDemux * demux) -{ - guint32 id; - guint64 before_pos; - guint64 length; - guint needed; - GstFlowReturn ret = GST_FLOW_OK; - - GST_WARNING_OBJECT (demux, - "Found Cluster element before Tracks, searching Tracks"); - - /* remember */ - before_pos = demux->common.offset; - - /* Search Tracks element */ - while (TRUE) { - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret != GST_FLOW_OK) - break; - - if (id != GST_MATROSKA_ID_TRACKS) { - /* we may be skipping large cluster here, so forego size check etc */ - /* ... but we can't skip undefined size; force error */ - if (length == G_MAXUINT64) { - ret = gst_matroska_demux_check_read_size (demux, length); - break; - } else { - demux->common.offset += needed; - demux->common.offset += length; - } - continue; - } - - /* will lead to track parsing ... */ - ret = gst_matroska_demux_trickplay_parse_id (demux, id, length, needed); - break; - } - - /* seek back */ - demux->common.offset = before_pos; - - return ret; -} - -static GstFlowReturn -gst_matroska_demux_trickplay_parse_id (GstMatroskaDemux * demux, guint32 id, - guint64 length, guint needed) -{ - GstEbmlRead ebml = { 0, }; - GstFlowReturn ret = GST_FLOW_OK; - guint64 read; - - GST_LOG_OBJECT (demux, "Parsing Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", prefix %d", id, length, needed); - - /* if we plan to read and parse this element, we need prefix (id + length) - * and the contents */ - /* mind about overflow wrap-around when dealing with undefined size */ - read = length; - if (G_LIKELY (length != G_MAXUINT64)) - read += needed; - - switch (demux->common.state) { - case GST_MATROSKA_READ_STATE_START: - switch (id) { - case GST_EBML_ID_HEADER: - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - ret = gst_matroska_read_common_parse_header (&demux->common, &ebml); - if (ret != GST_FLOW_OK) - goto parse_failed; - demux->common.state = GST_MATROSKA_READ_STATE_SEGMENT; - gst_matroska_demux_check_seekability (demux); - break; - default: - goto invalid_header; - break; - } - break; - case GST_MATROSKA_READ_STATE_SEGMENT: - switch (id) { - case GST_MATROSKA_ID_SEGMENT: - /* eat segment prefix */ - GST_READ_CHECK (gst_matroska_demux_flush (demux, needed)); - GST_DEBUG_OBJECT (demux, - "Found Segment start at offset %" G_GUINT64_FORMAT, - demux->common.offset); - /* seeks are from the beginning of the segment, - * after the segment ID/length */ - demux->common.ebml_segment_start = demux->common.offset; - demux->common.state = GST_MATROSKA_READ_STATE_HEADER; - break; - default: - GST_WARNING_OBJECT (demux, - "Expected a Segment ID (0x%x), but received 0x%x!", - GST_MATROSKA_ID_SEGMENT, id); - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - break; - } - break; - case GST_MATROSKA_READ_STATE_SCANNING: - if (id != GST_MATROSKA_ID_CLUSTER && - id != GST_MATROSKA_ID_CLUSTERTIMECODE) - goto skip; - /* fall-through */ - case GST_MATROSKA_READ_STATE_HEADER: - case GST_MATROSKA_READ_STATE_DATA: - case GST_MATROSKA_READ_STATE_SEEK: - switch (id) { - case GST_MATROSKA_ID_CLUSTER: - if (G_UNLIKELY (!demux->tracks_parsed)) { - if (demux->streaming) { - GST_DEBUG_OBJECT (demux, "Cluster before Track"); - goto not_streamable; - } else { - ret = gst_matroska_demux_trickplay_find_tracks (demux); - if (!demux->tracks_parsed) - goto no_tracks; - } - } - if (G_UNLIKELY (demux->common.state == GST_MATROSKA_READ_STATE_HEADER)) { - demux->common.state = GST_MATROSKA_READ_STATE_DATA; - demux->first_cluster_offset = demux->common.offset; - GST_DEBUG_OBJECT (demux, "signaling no more pads"); - gst_element_no_more_pads (GST_ELEMENT (demux)); - /* send initial newsegment */ - gst_matroska_demux_send_event (demux, - gst_event_new_new_segment (FALSE, 1.0, - GST_FORMAT_TIME, 0, - (demux->common.segment.duration > - 0) ? demux->common.segment.duration : -1, 0)); - } - demux->cluster_time = GST_CLOCK_TIME_NONE; - demux->cluster_offset = demux->common.offset; - if (G_UNLIKELY (!demux->seek_first && demux->seek_block)) { - GST_DEBUG_OBJECT (demux, "seek target block %" G_GUINT64_FORMAT - " not found in Cluster, trying next Cluster's first block instead", - demux->seek_block); - demux->seek_block = 0; - } - demux->seek_first = FALSE; - /* record next cluster for recovery */ - if (read != G_MAXUINT64) - demux->next_cluster_offset = demux->cluster_offset + read; - /* eat cluster prefix */ - gst_matroska_demux_flush (demux, needed); - break; - case GST_MATROSKA_ID_CLUSTERTIMECODE: { - guint64 num; - - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - if ((ret = gst_ebml_read_uint (&ebml, &id, &num)) != GST_FLOW_OK) - goto parse_failed; - GST_DEBUG_OBJECT (demux, "ClusterTimeCode: %" G_GUINT64_FORMAT, num); - demux->cluster_time = num; - if (demux->common.element_index) { - if (demux->common.element_index_writer_id == -1) - gst_index_get_writer_id (demux->common.element_index, - GST_OBJECT (demux), &demux->common.element_index_writer_id); - GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %" - G_GUINT64_FORMAT " for writer id %d", - GST_TIME_ARGS (demux->cluster_time), demux->cluster_offset, - demux->common.element_index_writer_id); - gst_index_add_association (demux->common.element_index, - demux->common.element_index_writer_id, GST_ASSOCIATION_FLAG_KEY_UNIT, - GST_FORMAT_TIME, demux->cluster_time, - GST_FORMAT_BYTES, demux->cluster_offset, NULL); - } - break; - } - case GST_MATROSKA_ID_BLOCKGROUP: - if (!gst_matroska_demux_seek_block (demux)) - goto skip; - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - DEBUG_ELEMENT_START (demux, &ebml, "BlockGroup"); - if ((ret = gst_ebml_read_master (&ebml, &id)) == GST_FLOW_OK) { - ret = gst_matroska_demux_trickplay_parse_blockgroup_or_simpleblock (demux, - &ebml, demux->cluster_time, demux->cluster_offset, FALSE); - } - DEBUG_ELEMENT_STOP (demux, &ebml, "BlockGroup", ret); - break; - case GST_MATROSKA_ID_SIMPLEBLOCK: - if (!gst_matroska_demux_seek_block (demux)) - goto skip; - GST_READ_CHECK (gst_matroska_demux_take (demux, read, &ebml)); - DEBUG_ELEMENT_START (demux, &ebml, "SimpleBlock"); - ret = gst_matroska_demux_trickplay_parse_blockgroup_or_simpleblock (demux, - &ebml, demux->cluster_time, demux->cluster_offset, TRUE); - DEBUG_ELEMENT_STOP (demux, &ebml, "SimpleBlock", ret); - break; - case GST_MATROSKA_ID_SEGMENTINFO: - case GST_MATROSKA_ID_TRACKS: - case GST_MATROSKA_ID_ATTACHMENTS: - case GST_MATROSKA_ID_TAGS: - case GST_MATROSKA_ID_CHAPTERS: - case GST_MATROSKA_ID_SEEKHEAD: - case GST_MATROSKA_ID_CUES: - case GST_MATROSKA_ID_POSITION: - case GST_MATROSKA_ID_PREVSIZE: - case GST_MATROSKA_ID_ENCRYPTEDBLOCK: - case GST_MATROSKA_ID_SILENTTRACKS: - GST_DEBUG_OBJECT (demux, - "Skipping Cluster subelement 0x%x - ignoring", id); - /* fall-through */ - default: - skip: - GST_DEBUG_OBJECT (demux, "skipping Element 0x%x", id); - GST_READ_CHECK (gst_matroska_demux_flush (demux, read)); - break; - } - break; - } - - if (ret == GST_FLOW_PARSE) - goto parse_failed; - -exit: - gst_ebml_read_clear (&ebml); - return ret; - - /* ERRORS */ -read_error: - { - /* simply exit, maybe not enough data yet */ - /* no ebml to clear if read error */ - return ret; - } -parse_failed: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("Failed to parse Element 0x%x", id)); - ret = GST_FLOW_ERROR; - goto exit; - } -not_streamable: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("File layout does not permit streaming")); - ret = GST_FLOW_ERROR; - goto exit; - } -no_tracks: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), - ("No Tracks element found")); - ret = GST_FLOW_ERROR; - goto exit; - } -invalid_header: - { - GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), ("Invalid header")); - ret = GST_FLOW_ERROR; - goto exit; - } -} - -static GstFlowReturn -gst_matroska_demux_trickplay_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux, - GstEbmlRead * ebml, guint64 cluster_time, guint64 cluster_offset, - gboolean is_simpleblock) -{ - GstMatroskaTrackContext *stream = NULL; - GstFlowReturn ret = GST_FLOW_OK; - gboolean readblock = FALSE; - guint32 id; - guint64 block_duration = 0; - GstBuffer *buf = NULL; - gint stream_num = -1, n, laces = 0; - guint size = 0; - gint64 time = 0; - gint flags = 0; - gint64 referenceblock = 0; - gint64 offset; - - offset = gst_ebml_read_get_offset (ebml); - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if (!is_simpleblock) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) { - goto data_error; - } - } else { - id = GST_MATROSKA_ID_SIMPLEBLOCK; - } - - switch (id) { - /* one block inside the group. Note, block parsing is one - * of the harder things, so this code is a bit complicated. - * See http://www.matroska.org/ for documentation. */ - case GST_MATROSKA_ID_SIMPLEBLOCK: - case GST_MATROSKA_ID_BLOCK: { - guint64 num; - guint8 *data; - - if (buf) { - gst_buffer_unref (buf); - buf = NULL; - } - if ((ret = gst_ebml_read_buffer (ebml, &id, &buf)) != GST_FLOW_OK) - break; - - data = GST_BUFFER_DATA (buf); - size = GST_BUFFER_SIZE (buf); - - /* first byte(s): blocknum */ - if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) - goto data_error; - data += n; - size -= n; - - /* fetch stream from num */ - stream_num = gst_matroska_read_common_stream_from_num (&demux->common, num); - if (G_UNLIKELY (size < 3)) { - GST_WARNING_OBJECT (demux, "Invalid size %u", size); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } else if (G_UNLIKELY (stream_num < 0 || - stream_num >= demux->common.num_streams)) { - /* let's not give up on a stray invalid track number */ - GST_WARNING_OBJECT (demux, - "Invalid stream %d for track number %" G_GUINT64_FORMAT - "; ignoring block", stream_num, num); - goto done; - } - - stream = g_ptr_array_index (demux->common.src, stream_num); - - /* time (relative to cluster time) */ - time = ((gint16) GST_READ_UINT16_BE (data)); - data += 2; - size -= 2; - flags = GST_READ_UINT8 (data); - data += 1; - size -= 1; - - GST_LOG_OBJECT (demux, "time %" G_GUINT64_FORMAT ", flags %d", time, - flags); - - switch ((flags & 0x06) >> 1) { - case 0x0: /* no lacing */ - laces = 1; - break; - - case 0x1: /* xiph lacing */ - case 0x2: /* fixed-size lacing */ - case 0x3: /* EBML lacing */ - if (size == 0) - goto invalid_lacing; - laces = GST_READ_UINT8 (data) + 1; - break; - } - - - if (ret != GST_FLOW_OK) - break; - - readblock = TRUE; - break; - } - - case GST_MATROSKA_ID_BLOCKDURATION: { - ret = gst_ebml_read_uint (ebml, &id, &block_duration); - GST_DEBUG_OBJECT (demux, "BlockDuration: %" G_GUINT64_FORMAT, - block_duration); - break; - } - - case GST_MATROSKA_ID_REFERENCEBLOCK: { - ret = gst_ebml_read_sint (ebml, &id, &referenceblock); - GST_DEBUG_OBJECT (demux, "ReferenceBlock: %" G_GINT64_FORMAT, - referenceblock); - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (&demux->common, ebml, "BlockGroup", id); - break; - - case GST_MATROSKA_ID_BLOCKVIRTUAL: - case GST_MATROSKA_ID_BLOCKADDITIONS: - case GST_MATROSKA_ID_REFERENCEPRIORITY: - case GST_MATROSKA_ID_REFERENCEVIRTUAL: - case GST_MATROSKA_ID_SLICES: - GST_DEBUG_OBJECT (demux, - "Skipping BlockGroup subelement 0x%x - ignoring", id); - ret = gst_ebml_read_skip (ebml); - break; - } - - if (is_simpleblock) - break; - } - - /* reading a number or so could have failed */ - if (ret != GST_FLOW_OK) - goto data_error; - - if (ret == GST_FLOW_OK && readblock) { - gint64 lace_time = 0; - gboolean delta_unit; - - stream = g_ptr_array_index (demux->common.src, stream_num); - - if (cluster_time != GST_CLOCK_TIME_NONE) { - /* FIXME: What to do with negative timestamps? Give timestamp 0 or -1? - * Drop unless the lace contains timestamp 0? */ - if (time < 0 && (-time) > cluster_time) { - lace_time = 0; - } else { - if (stream->timecodescale == 1.0) - lace_time = (cluster_time + time) * demux->common.time_scale; - else - lace_time = - gst_util_guint64_to_gdouble ((cluster_time + time) * - demux->common.time_scale) * stream->timecodescale; - } - } else { - lace_time = GST_CLOCK_TIME_NONE; - } - - /* else duration is diff between timecode of this and next block */ - - /* For SimpleBlock, look at the keyframe bit in flags. Otherwise, - a ReferenceBlock implies that this is not a keyframe. In either - case, it only makes sense for video streams. */ - delta_unit = stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && - ((is_simpleblock && !(flags & 0x80)) || referenceblock); - - if (delta_unit && stream->set_discont) { - /* When doing seeks or such, we need to restart on key frames or - * decoders might choke. */ - GST_DEBUG_OBJECT (demux, "skipping delta unit"); - goto done; - } - - /* last_ts used for EOS in trickplay */ - stream->last_ts = lace_time; - - if (stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - stream->num_frames_bw_keyframes++; - if (delta_unit == FALSE) { - stream->found_next_kframe = TRUE; - demux->next_key_cluster_time = demux->cluster_time; - stream->next_kframe_timestamp = lace_time; - demux->common.segment.last_stop = lace_time - 0.5* GST_SECOND; - } - } else if (stream->type == GST_MATROSKA_TRACK_TYPE_AUDIO) { - stream->num_frames_bw_keyframes = stream->num_frames_bw_keyframes + laces; - } - } - -done: - if (buf) - gst_buffer_unref (buf); - - return ret; - -invalid_lacing: - { - GST_ELEMENT_WARNING (demux, STREAM, DEMUX, (NULL), ("Invalid lacing size")); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } -data_error: - { - GST_ELEMENT_WARNING (demux, STREAM, DEMUX, (NULL), ("Data error")); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } -} - -static gint32 -gst_matroska_demux_trickplay_nframes2show_bw_keyframes (GstMatroskaDemux* demux, GstMatroskaTrackContext * stream) -{ - GstFlowReturn ret = GST_FLOW_OK; - guint32 id; - guint64 length; - guint needed; - gint prev_offset = demux->common.offset; - gint next_keyframe_offset = 0; - guint64 prev_cluster_time = demux->cluster_time; - guint64 prev_cluster_offset = demux->cluster_offset; - int i = 0; - - while (stream->found_next_kframe == FALSE) { - next_keyframe_offset = demux->common.offset; - - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id, &length, &needed); - if (ret == GST_FLOW_UNEXPECTED) { - stream->next_kframe_timestamp = stream->last_ts; - stream->found_next_kframe = TRUE; - break; - } - GST_LOG_OBJECT (demux, "trickplay : Offset %" G_GUINT64_FORMAT ", Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", needed %d", demux->common.offset, id, - length, needed); - - if (ret != GST_FLOW_OK) { - GST_WARNING_OBJECT (demux, "Error in id_length_pull flow ret...reason : %s\n", gst_flow_get_name (ret)); - break; - } - - ret = gst_matroska_demux_trickplay_parse_id (demux, id, length, needed); - if (ret == GST_FLOW_UNEXPECTED) { - stream->next_kframe_timestamp = stream->last_ts; - stream->found_next_kframe = TRUE; - break; - } - - if (ret != GST_FLOW_OK) { - GST_WARNING_OBJECT (demux, "Error in parse_id flow ret...reason : %s\n", gst_flow_get_name (ret)); - break; - } - } - - if (stream->found_next_kframe == TRUE) { - demux->next_key_frame_offset = next_keyframe_offset; - } - - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *context = g_ptr_array_index (demux->common.src, i); - if (context->type <= GST_MATROSKA_TRACK_TYPE_AUDIO) { - context->frames_to_show_bw_keyframes = context->num_frames_bw_keyframes / demux->common.segment.rate; - } - } - - /* keeping previous offset values for normal operation */ - demux->common.offset = prev_offset; - demux->cluster_offset = prev_cluster_offset; - demux->cluster_time = prev_cluster_time; - - return stream->num_frames_bw_keyframes; -} - -static GstFlowReturn -gst_matroska_demux_backward_trickplay (GstMatroskaDemux* demux, GstMatroskaTrackContext * stream, GstBuffer* sub) -{ - GstFlowReturn ret = GST_FLOW_OK; - - if (((stream->type == GST_MATROSKA_TRACK_TYPE_AUDIO) || (!GST_BUFFER_FLAG_IS_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT))) - && (demux->prev_keyframe_ts <= (GST_BUFFER_TIMESTAMP (sub)) <= demux->next_keyframe_ts)) { - - if(stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && !demux->video_keyframe_pushed) { - demux->video_keyframe_pushed = TRUE; - } else if(stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && demux->video_keyframe_pushed){ - GST_INFO("unreffing the video frame (already sent one keyframe)"); - gst_buffer_unref (sub); - return ret; - } - - if(demux->prev_keyframe_ts == demux->next_keyframe_ts || demux->prev_keyframe_ts > demux->next_keyframe_ts) { - GST_INFO("Unreffing the already pushed buffer"); - gst_buffer_unref (sub); - return ret; - } - - GST_DEBUG_OBJECT (demux, "Pushing data of size %d for stream %d, time=%"GST_TIME_FORMAT - " and duration=%" GST_TIME_FORMAT, - GST_BUFFER_SIZE (sub), stream->type, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)), - GST_TIME_ARGS (GST_BUFFER_DURATION (sub))); - - g_assert (stream->alignment <= G_MEM_ALIGN); - if (((guintptr) GST_BUFFER_DATA (sub)) & (stream->alignment - 1)) { - GST_INFO("in if alignment log"); - GstBuffer *buffer = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (sub)); - memcpy (GST_BUFFER_DATA (buffer), GST_BUFFER_DATA (sub), - GST_BUFFER_SIZE (sub)); - gst_buffer_copy_metadata (buffer, sub, GST_BUFFER_COPY_ALL); - GST_DEBUG_OBJECT (demux, "We want output aligned on %d, reallocated", stream->alignment); - gst_buffer_unref (sub); - sub = buffer; - } - - ret = gst_pad_push(stream->pad, sub); - - if (ret != GST_FLOW_OK) { - GST_DEBUG_OBJECT (demux, "Error in pad_push. Reason : %s\n", gst_flow_get_name (ret)); - } - } else if(GST_BUFFER_FLAG_IS_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT)) { - gst_buffer_unref (sub); - } - return ret; -} - -static GstFlowReturn -gst_matroska_demux_forward_trickplay (GstMatroskaDemux* demux, GstMatroskaTrackContext * stream, GstBuffer *buffer, gboolean *skip) -{ - GstFlowReturn ret = GST_FLOW_OK; - guint64 time_escalation = 0; - gint i = 0; - - if (stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - if ((stream->found_next_kframe == FALSE) && (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))) { - GST_INFO("Finding the no of frames b/w keyframe"); - g_assert (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)); - gst_matroska_demux_trickplay_nframes2show_bw_keyframes (demux, stream); - stream->prev_kframe_timestamp = GST_BUFFER_TIMESTAMP (buffer); - GST_INFO("next keyframe timestamp is %"GST_TIME_FORMAT" and previous keyframe timestamp is %"GST_TIME_FORMAT, - GST_TIME_ARGS(stream->next_kframe_timestamp), GST_TIME_ARGS(stream->prev_kframe_timestamp)); - stream->avg_duration_bw_keyframes = (stream->next_kframe_timestamp - stream->prev_kframe_timestamp) / stream->num_frames_bw_keyframes; - GST_INFO_OBJECT (demux, "Number of frames between key frames = %d and frames to show between key frames = %d", stream->num_frames_bw_keyframes, stream->frames_to_show_bw_keyframes); - GST_DEBUG_OBJECT (demux, "average duration of frames = %"GST_TIME_FORMAT, GST_TIME_ARGS(stream->avg_duration_bw_keyframes)); - - for (i = 0; i < demux->common.src->len; i++) { - GstMatroskaTrackContext *context = g_ptr_array_index (demux->common.src, i); - if (context->type == GST_MATROSKA_TRACK_TYPE_AUDIO) { - context->num_frames_bw_keyframes = 0; - } - } - } else { - if (stream->frames_to_show_bw_keyframes == 0) { - stream->found_next_kframe = FALSE; - demux->cluster_time = demux->next_key_cluster_time; - demux->common.offset = demux->next_key_frame_offset; - stream->num_frames_bw_keyframes = 0; - GST_DEBUG_OBJECT (demux, "next key cluster time = %"GST_TIME_FORMAT" and offset = %u...\n", GST_TIME_ARGS(demux->cluster_time), demux->common.offset); - } - - if(stream->num_frames_bw_keyframes == 0) - *skip = TRUE; - - if(stream->frames_to_show_bw_keyframes > 0) { - GST_INFO("Time stamp modification %"GST_TIME_FORMAT,GST_TIME_ARGS(GST_BUFFER_TIMESTAMP(buffer))); - - time_escalation = ((stream->num_frames_bw_keyframes/demux->common.segment.rate) - stream->frames_to_show_bw_keyframes) * stream->avg_duration_bw_keyframes * demux->common.segment.rate; - - GST_BUFFER_TIMESTAMP(buffer) = stream->prev_kframe_timestamp + time_escalation; - GST_INFO("Time stamp modified %"GST_TIME_FORMAT,GST_TIME_ARGS(GST_BUFFER_TIMESTAMP(buffer))); - } - stream->frames_to_show_bw_keyframes--; - } - } else if (stream->type == GST_MATROSKA_TRACK_TYPE_AUDIO) { - if (stream->frames_to_show_bw_keyframes == 0) { - *skip = TRUE; - stream->num_frames_bw_keyframes = 0; - stream->frames_to_show_bw_keyframes = 0; - } else { - stream->frames_to_show_bw_keyframes--; - } - } - return ret; -} -#endif - - - -static GstStateChangeReturn -gst_matroska_demux_change_state (GstElement * element, - GstStateChange transition) -{ - GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element); - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - - /* handle upwards state changes here */ - switch (transition) { - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - /* handle downwards state changes */ - switch (transition) { - case GST_STATE_CHANGE_PAUSED_TO_READY: - gst_matroska_demux_reset (GST_ELEMENT (demux)); - break; - default: - break; - } - - return ret; -} - -static void -gst_matroska_demux_set_property (GObject * object, - guint prop_id, const GValue * value, GParamSpec * pspec) -{ - GstMatroskaDemux *demux; - - g_return_if_fail (GST_IS_MATROSKA_DEMUX (object)); - demux = GST_MATROSKA_DEMUX (object); - - switch (prop_id) { - case ARG_MAX_GAP_TIME: - GST_OBJECT_LOCK (demux); - demux->max_gap_time = g_value_get_uint64 (value); - GST_OBJECT_UNLOCK (demux); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_matroska_demux_get_property (GObject * object, - guint prop_id, GValue * value, GParamSpec * pspec) -{ - GstMatroskaDemux *demux; - - g_return_if_fail (GST_IS_MATROSKA_DEMUX (object)); - demux = GST_MATROSKA_DEMUX (object); - - switch (prop_id) { - case ARG_MAX_GAP_TIME: - GST_OBJECT_LOCK (demux); - g_value_set_uint64 (value, demux->max_gap_time); - GST_OBJECT_UNLOCK (demux); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -#ifdef MKV_DEMUX_MODIFICATION -static gboolean gst_matroska_demux_create_index_table(GstMatroskaDemux* demux) -{ - GstFlowReturn ret; - guint32 id_index; - guint64 length_index; - guint needed_index; - - while(TRUE) { - ret = gst_matroska_read_common_peek_id_length_pull (&demux->common, - GST_ELEMENT_CAST (demux), &id_index, &length_index, &needed_index); - - if (ret == GST_FLOW_UNEXPECTED || ret != GST_FLOW_OK) { - GST_INFO("problem in pulling data or eos reached"); - demux->index_table_created = TRUE; - break; - } - - GST_LOG_OBJECT (demux, "Offset %" G_GUINT64_FORMAT ", Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", needed %d", demux->common.offset, id_index, - length_index, needed_index); - - ret = gst_matroska_demux_parse_id (demux, id_index, length_index, needed_index); - - if(ret == GST_FLOW_UNEXPECTED || ret != GST_FLOW_OK) { - GST_INFO("problem in pulling data or eos reached"); - demux->index_table_created = TRUE; - break; - } - } - - return TRUE; -} -#endif - -gboolean -gst_matroska_demux_plugin_init (GstPlugin * plugin) -{ - gst_riff_init (); - - /* parser helper separate debug */ - GST_DEBUG_CATEGORY_INIT (ebmlread_debug, "ebmlread", - 0, "EBML stream helper class"); - - /* create an elementfactory for the matroska_demux element */ - if (!gst_element_register (plugin, "matroskademux", - GST_RANK_PRIMARY, GST_TYPE_MATROSKA_DEMUX)) - return FALSE; - - return TRUE; -} diff --git a/mobile/gst/matroska/matroska-demux.h b/mobile/gst/matroska/matroska-demux.h deleted file mode 100644 index a8e442f..0000000 --- a/mobile/gst/matroska/matroska-demux.h +++ /dev/null @@ -1,138 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2011 Debarshi Ray <rishi@gnu.org> - * - * matroska-demux.h: matroska file/stream demuxer definition - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_MATROSKA_DEMUX_H__ -#define __GST_MATROSKA_DEMUX_H__ - -#include <gst/gst.h> - -#include "ebml-read.h" -#include "matroska-ids.h" -#include "matroska-read-common.h" - -G_BEGIN_DECLS - -#define GST_TYPE_MATROSKA_DEMUX \ - (gst_matroska_demux_get_type ()) -#define GST_MATROSKA_DEMUX(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemux)) -#define GST_MATROSKA_DEMUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemuxClass)) -#define GST_IS_MATROSKA_DEMUX(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_DEMUX)) -#define GST_IS_MATROSKA_DEMUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_DEMUX)) - -typedef struct _GstMatroskaDemux { - GstElement parent; - - /* < private > */ - - GstMatroskaReadCommon common; - - /* pads */ - GstClock *clock; - guint num_v_streams; - guint num_a_streams; - guint num_t_streams; - - /* state */ - gboolean streaming; - guint level_up; - guint64 seek_block; - gboolean seek_first; - - /* did we parse cues/tracks/segmentinfo already? */ - gboolean tracks_parsed; - GList *seek_parsed; - - /* cluster positions (optional) */ - GArray *clusters; - - /* keeping track of playback position */ - gboolean segment_running; - GstClockTime last_stop_end; - GstClockTime stream_start_time; - - GstEvent *close_segment; - GstEvent *new_segment; - - /* some state saving */ - GstClockTime cluster_time; - guint64 cluster_offset; - guint64 first_cluster_offset; - guint64 next_cluster_offset; - -#ifdef MKV_DEMUX_MODIFICATION - gint64 duration; /* need to check */ - GstClockTime time_position; - GstMatroskaTrackContext* audio_stream; - gboolean video; - gboolean found_videokeyframe; - gboolean found_audioframe; - gboolean seek_head_cluster_info_absent; - gboolean seek_head_cue_info_absent; - gboolean index_table_created; - gboolean index_table_array_creation; - guint32 initial_offset; -#endif - - /* index stuff */ - gboolean seekable; - gboolean building_index; - guint64 index_offset; - GstEvent *seek_event; - gboolean need_newsegment; - - /* reverse playback */ - GArray *seek_index; - gint seek_entry; - -#ifdef MKV_DEMUX_MODIFICATION - GstClockTime next_key_cluster_time; - guint64 next_key_frame_offset; - GstClockTime current_ts; - GstClockTime current_fwd_ts; - GstClockTime next_keyframe_ts; - GstClockTime prev_keyframe_ts; - gboolean is_eos_blockgroup; - gboolean is_eos_simpleblock; - gint no_video_frame; - gboolean video_keyframe_pushed; -#endif - - /* gap handling */ - guint64 max_gap_time; - - /* for non-finalized files, with invalid segment duration */ - gboolean invalid_duration; -} GstMatroskaDemux; - -typedef struct _GstMatroskaDemuxClass { - GstElementClass parent; -} GstMatroskaDemuxClass; - -gboolean gst_matroska_demux_plugin_init (GstPlugin *plugin); - -G_END_DECLS - -#endif /* __GST_MATROSKA_DEMUX_H__ */ diff --git a/mobile/gst/matroska/matroska-ids.c b/mobile/gst/matroska/matroska-ids.c deleted file mode 100644 index 8e62395..0000000 --- a/mobile/gst/matroska/matroska-ids.c +++ /dev/null @@ -1,118 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (C) 2006 Tim-Philipp Müller <tim centricular net> - * - * matroska-ids.c: matroska track context utility functions - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "matroska-ids.h" - -gboolean -gst_matroska_track_init_video_context (GstMatroskaTrackContext ** p_context) -{ - GstMatroskaTrackVideoContext *video_context; - - g_assert (p_context != NULL && *p_context != NULL); - - /* already set up? (track info might come before track type) */ - if ((*p_context)->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - GST_LOG ("video context already set up"); - return TRUE; - } - - /* it better not have been set up as some other track type ... */ - if ((*p_context)->type != 0) { - g_return_val_if_reached (FALSE); - } - - video_context = g_renew (GstMatroskaTrackVideoContext, *p_context, 1); - *p_context = (GstMatroskaTrackContext *) video_context; - - /* defaults */ - (*p_context)->type = GST_MATROSKA_TRACK_TYPE_VIDEO; - video_context->display_width = 0; - video_context->display_height = 0; - video_context->pixel_width = 0; - video_context->pixel_height = 0; - video_context->asr_mode = 0; - video_context->fourcc = 0; - video_context->default_fps = 0.0; - video_context->earliest_time = GST_CLOCK_TIME_NONE; - return TRUE; -} - -gboolean -gst_matroska_track_init_audio_context (GstMatroskaTrackContext ** p_context) -{ - GstMatroskaTrackAudioContext *audio_context; - - g_assert (p_context != NULL && *p_context != NULL); - - /* already set up? (track info might come before track type) */ - if ((*p_context)->type == GST_MATROSKA_TRACK_TYPE_AUDIO) - return TRUE; - - /* it better not have been set up as some other track type ... */ - if ((*p_context)->type != 0) { - g_return_val_if_reached (FALSE); - } - - audio_context = g_renew (GstMatroskaTrackAudioContext, *p_context, 1); - *p_context = (GstMatroskaTrackContext *) audio_context; - - /* defaults */ - (*p_context)->type = GST_MATROSKA_TRACK_TYPE_AUDIO; - audio_context->channels = 1; - audio_context->samplerate = 8000; - return TRUE; -} - -gboolean -gst_matroska_track_init_subtitle_context (GstMatroskaTrackContext ** p_context) -{ - GstMatroskaTrackSubtitleContext *subtitle_context; - - g_assert (p_context != NULL && *p_context != NULL); - - /* already set up? (track info might come before track type) */ - if ((*p_context)->type == GST_MATROSKA_TRACK_TYPE_SUBTITLE) - return TRUE; - - /* it better not have been set up as some other track type ... */ - if ((*p_context)->type != 0) { - g_return_val_if_reached (FALSE); - } - - subtitle_context = g_renew (GstMatroskaTrackSubtitleContext, *p_context, 1); - *p_context = (GstMatroskaTrackContext *) subtitle_context; - - (*p_context)->type = GST_MATROSKA_TRACK_TYPE_SUBTITLE; - subtitle_context->invalid_utf8 = FALSE; - subtitle_context->seen_markup_tag = FALSE; - return TRUE; -} - -void -gst_matroska_register_tags (void) -{ - /* TODO: register other custom tags */ -} diff --git a/mobile/gst/matroska/matroska-ids.h b/mobile/gst/matroska/matroska-ids.h deleted file mode 100644 index c88555c..0000000 --- a/mobile/gst/matroska/matroska-ids.h +++ /dev/null @@ -1,639 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * - * matroska-ids.h: matroska file/stream data IDs - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_MATROSKA_IDS_H__ -#define __GST_MATROSKA_IDS_H__ - -#include <gst/gst.h> - -#include "ebml-ids.h" - -#define MKV_DEMUX_MODIFICATION /* for enabling changes */ - -/* - * EBML DocType. - */ - -#define GST_MATROSKA_DOCTYPE_MATROSKA "matroska" -#define GST_MATROSKA_DOCTYPE_WEBM "webm" - -/* - * Matroska element IDs. max. 32-bit. - */ - -/* toplevel Segment */ -#define GST_MATROSKA_ID_SEGMENT 0x18538067 - -/* matroska top-level master IDs, childs of Segment */ -#define GST_MATROSKA_ID_SEGMENTINFO 0x1549A966 -#define GST_MATROSKA_ID_TRACKS 0x1654AE6B -#define GST_MATROSKA_ID_CUES 0x1C53BB6B -#define GST_MATROSKA_ID_TAGS 0x1254C367 -#define GST_MATROSKA_ID_SEEKHEAD 0x114D9B74 -#define GST_MATROSKA_ID_CLUSTER 0x1F43B675 -#define GST_MATROSKA_ID_ATTACHMENTS 0x1941A469 -#define GST_MATROSKA_ID_CHAPTERS 0x1043A770 - -/* IDs in the SegmentInfo master */ -#define GST_MATROSKA_ID_TIMECODESCALE 0x2AD7B1 -#define GST_MATROSKA_ID_DURATION 0x4489 -#define GST_MATROSKA_ID_WRITINGAPP 0x5741 -#define GST_MATROSKA_ID_MUXINGAPP 0x4D80 -#define GST_MATROSKA_ID_DATEUTC 0x4461 -#define GST_MATROSKA_ID_SEGMENTUID 0x73A4 -#define GST_MATROSKA_ID_SEGMENTFILENAME 0x7384 -#define GST_MATROSKA_ID_PREVUID 0x3CB923 -#define GST_MATROSKA_ID_PREVFILENAME 0x3C83AB -#define GST_MATROSKA_ID_NEXTUID 0x3EB923 -#define GST_MATROSKA_ID_NEXTFILENAME 0x3E83BB -#define GST_MATROSKA_ID_TITLE 0x7BA9 -#define GST_MATROSKA_ID_SEGMENTFAMILY 0x4444 -#define GST_MATROSKA_ID_CHAPTERTRANSLATE 0x6924 - -/* IDs in the ChapterTranslate master */ -#define GST_MATROSKA_ID_CHAPTERTRANSLATEEDITIONUID 0x69FC -#define GST_MATROSKA_ID_CHAPTERTRANSLATECODEC 0x69BF -#define GST_MATROSKA_ID_CHAPTERTRANSLATEID 0x69A5 - -/* ID in the Tracks master */ -#define GST_MATROSKA_ID_TRACKENTRY 0xAE - -/* IDs in the TrackEntry master */ -#define GST_MATROSKA_ID_TRACKNUMBER 0xD7 -#define GST_MATROSKA_ID_TRACKUID 0x73C5 -#define GST_MATROSKA_ID_TRACKTYPE 0x83 -#define GST_MATROSKA_ID_TRACKAUDIO 0xE1 -#define GST_MATROSKA_ID_TRACKVIDEO 0xE0 -#define GST_MATROSKA_ID_CONTENTENCODINGS 0x6D80 -#define GST_MATROSKA_ID_CODECID 0x86 -#define GST_MATROSKA_ID_CODECPRIVATE 0x63A2 -#define GST_MATROSKA_ID_CODECNAME 0x258688 -#define GST_MATROSKA_ID_TRACKNAME 0x536E -#define GST_MATROSKA_ID_TRACKLANGUAGE 0x22B59C -#define GST_MATROSKA_ID_TRACKFLAGENABLED 0xB9 -#define GST_MATROSKA_ID_TRACKFLAGDEFAULT 0x88 -#define GST_MATROSKA_ID_TRACKFLAGFORCED 0x55AA -#define GST_MATROSKA_ID_TRACKFLAGLACING 0x9C -#define GST_MATROSKA_ID_TRACKMINCACHE 0x6DE7 -#define GST_MATROSKA_ID_TRACKMAXCACHE 0x6DF8 -#define GST_MATROSKA_ID_TRACKDEFAULTDURATION 0x23E383 -#define GST_MATROSKA_ID_TRACKTIMECODESCALE 0x23314F -#define GST_MATROSKA_ID_MAXBLOCKADDITIONID 0x55EE -#define GST_MATROSKA_ID_TRACKATTACHMENTLINK 0x7446 -#define GST_MATROSKA_ID_TRACKOVERLAY 0x6FAB -#define GST_MATROSKA_ID_TRACKTRANSLATE 0x6624 -/* semi-draft */ -#define GST_MATROSKA_ID_TRACKOFFSET 0x537F -/* semi-draft */ -#define GST_MATROSKA_ID_CODECSETTINGS 0x3A9697 -/* semi-draft */ -#define GST_MATROSKA_ID_CODECINFOURL 0x3B4040 -/* semi-draft */ -#define GST_MATROSKA_ID_CODECDOWNLOADURL 0x26B240 -/* semi-draft */ -#define GST_MATROSKA_ID_CODECDECODEALL 0xAA - -/* IDs in the TrackTranslate master */ -#define GST_MATROSKA_ID_TRACKTRANSLATEEDITIONUID 0x66FC -#define GST_MATROSKA_ID_TRACKTRANSLATECODEC 0x66BF -#define GST_MATROSKA_ID_TRACKTRANSLATETRACKID 0x66A5 - - -/* IDs in the TrackVideo master */ -/* NOTE: This one is here only for backward compatibility. - * Use _TRACKDEFAULDURATION */ -#define GST_MATROSKA_ID_VIDEOFRAMERATE 0x2383E3 -#define GST_MATROSKA_ID_VIDEODISPLAYWIDTH 0x54B0 -#define GST_MATROSKA_ID_VIDEODISPLAYHEIGHT 0x54BA -#define GST_MATROSKA_ID_VIDEODISPLAYUNIT 0x54B2 -#define GST_MATROSKA_ID_VIDEOPIXELWIDTH 0xB0 -#define GST_MATROSKA_ID_VIDEOPIXELHEIGHT 0xBA -#define GST_MATROSKA_ID_VIDEOPIXELCROPBOTTOM 0x54AA -#define GST_MATROSKA_ID_VIDEOPIXELCROPTOP 0x54BB -#define GST_MATROSKA_ID_VIDEOPIXELCROPLEFT 0x54CC -#define GST_MATROSKA_ID_VIDEOPIXELCROPRIGHT 0x54DD -#define GST_MATROSKA_ID_VIDEOFLAGINTERLACED 0x9A -/* semi-draft */ -#define GST_MATROSKA_ID_VIDEOSTEREOMODE 0x53B8 -#define GST_MATROSKA_ID_VIDEOASPECTRATIOTYPE 0x54B3 -#define GST_MATROSKA_ID_VIDEOCOLOURSPACE 0x2EB524 -/* semi-draft */ -#define GST_MATROSKA_ID_VIDEOGAMMAVALUE 0x2FB523 - -/* IDs in the TrackAudio master */ -#define GST_MATROSKA_ID_AUDIOSAMPLINGFREQ 0xB5 -#define GST_MATROSKA_ID_AUDIOBITDEPTH 0x6264 -#define GST_MATROSKA_ID_AUDIOCHANNELS 0x9F -/* semi-draft */ -#define GST_MATROSKA_ID_AUDIOCHANNELPOSITIONS 0x7D7B -#define GST_MATROSKA_ID_AUDIOOUTPUTSAMPLINGFREQ 0x78B5 - -/* IDs in the TrackContentEncoding master */ -#define GST_MATROSKA_ID_CONTENTENCODING 0x6240 - -/* IDs in the ContentEncoding master */ -#define GST_MATROSKA_ID_CONTENTENCODINGORDER 0x5031 -#define GST_MATROSKA_ID_CONTENTENCODINGSCOPE 0x5032 -#define GST_MATROSKA_ID_CONTENTENCODINGTYPE 0x5033 -#define GST_MATROSKA_ID_CONTENTCOMPRESSION 0x5034 -#define GST_MATROSKA_ID_CONTENTENCRYPTION 0x5035 - -/* IDs in the ContentCompression master */ -#define GST_MATROSKA_ID_CONTENTCOMPALGO 0x4254 -#define GST_MATROSKA_ID_CONTENTCOMPSETTINGS 0x4255 - -/* IDs in the ContentEncryption master */ -#define GST_MATROSKA_ID_CONTENTENCALGO 0x47E1 -#define GST_MATROSKA_ID_CONTENTENCKEYID 0x47E2 -#define GST_MATROSKA_ID_CONTENTSIGNATURE 0x47E3 -#define GST_MATROSKA_ID_CONTENTSIGKEYID 0x47E4 -#define GST_MATROSKA_ID_CONTENTSIGALGO 0x47E5 -#define GST_MATROSKA_ID_CONTENTSIGHASHALGO 0x47E6 - -/* ID in the CUEs master */ -#define GST_MATROSKA_ID_POINTENTRY 0xBB - -/* IDs in the pointentry master */ -#define GST_MATROSKA_ID_CUETIME 0xB3 -#define GST_MATROSKA_ID_CUETRACKPOSITIONS 0xB7 - -/* IDs in the CueTrackPositions master */ -#define GST_MATROSKA_ID_CUETRACK 0xF7 -#define GST_MATROSKA_ID_CUECLUSTERPOSITION 0xF1 -#define GST_MATROSKA_ID_CUEBLOCKNUMBER 0x5378 -/* semi-draft */ -#define GST_MATROSKA_ID_CUECODECSTATE 0xEA -/* semi-draft */ -#define GST_MATROSKA_ID_CUEREFERENCE 0xDB - -/* IDs in the CueReference master */ -/* semi-draft */ -#define GST_MATROSKA_ID_CUEREFTIME 0x96 -/* semi-draft */ -#define GST_MATROSKA_ID_CUEREFCLUSTER 0x97 -/* semi-draft */ -#define GST_MATROSKA_ID_CUEREFNUMBER 0x535F -/* semi-draft */ -#define GST_MATROSKA_ID_CUEREFCODECSTATE 0xEB - -/* IDs in the Tags master */ -#define GST_MATROSKA_ID_TAG 0x7373 - -/* in the Tag master */ -#define GST_MATROSKA_ID_SIMPLETAG 0x67C8 -#define GST_MATROSKA_ID_TARGETS 0x63C0 - -/* in the SimpleTag master */ -#define GST_MATROSKA_ID_TAGNAME 0x45A3 -#define GST_MATROSKA_ID_TAGSTRING 0x4487 -#define GST_MATROSKA_ID_TAGLANGUAGE 0x447A -#define GST_MATROSKA_ID_TAGDEFAULT 0x4484 -#define GST_MATROSKA_ID_TAGBINARY 0x4485 - -/* in the Targets master */ -#define GST_MATROSKA_ID_TARGETTYPEVALUE 0x68CA -#define GST_MATROSKA_ID_TARGETTYPE 0x63CA -#define GST_MATROSKA_ID_TARGETTRACKUID 0x63C5 -#define GST_MATROSKA_ID_TARGETEDITIONUID 0x63C5 -#define GST_MATROSKA_ID_TARGETCHAPTERUID 0x63C4 -#define GST_MATROSKA_ID_TARGETATTACHMENTUID 0x63C6 - -/* IDs in the SeekHead master */ -#define GST_MATROSKA_ID_SEEKENTRY 0x4DBB - -/* IDs in the SeekEntry master */ -#define GST_MATROSKA_ID_SEEKID 0x53AB -#define GST_MATROSKA_ID_SEEKPOSITION 0x53AC - -/* IDs in the Cluster master */ -#define GST_MATROSKA_ID_CLUSTERTIMECODE 0xE7 -#define GST_MATROSKA_ID_BLOCKGROUP 0xA0 -#define GST_MATROSKA_ID_SIMPLEBLOCK 0xA3 -#define GST_MATROSKA_ID_REFERENCEBLOCK 0xFB -#define GST_MATROSKA_ID_POSITION 0xA7 -#define GST_MATROSKA_ID_PREVSIZE 0xAB -/* semi-draft */ -#define GST_MATROSKA_ID_ENCRYPTEDBLOCK 0xAF -#define GST_MATROSKA_ID_SILENTTRACKS 0x5854 - -/* IDs in the SilentTracks master */ -#define GST_MATROSKA_ID_SILENTTRACKNUMBER 0x58D7 - -/* IDs in the BlockGroup master */ -#define GST_MATROSKA_ID_BLOCK 0xA1 -#define GST_MATROSKA_ID_BLOCKDURATION 0x9B -/* semi-draft */ -#define GST_MATROSKA_ID_BLOCKVIRTUAL 0xA2 -#define GST_MATROSKA_ID_REFERENCEBLOCK 0xFB -#define GST_MATROSKA_ID_BLOCKADDITIONS 0x75A1 -#define GST_MATROSKA_ID_REFERENCEPRIORITY 0xFA -/* semi-draft */ -#define GST_MATROSKA_ID_REFERENCEVIRTUAL 0xFD -/* semi-draft */ -#define GST_MATROSKA_ID_CODECSTATE 0xA4 -#define GST_MATROSKA_ID_SLICES 0x8E - -/* IDs in the BlockAdditions master */ -#define GST_MATROSKA_ID_BLOCKMORE 0xA6 - -/* IDs in the BlockMore master */ -#define GST_MATROSKA_ID_BLOCKADDID 0xEE -#define GST_MATROSKA_ID_BLOCKADDITIONAL 0xA5 - -/* IDs in the Slices master */ -#define GST_MATROSKA_ID_TIMESLICE 0xE8 - -/* IDs in the TimeSlice master */ -#define GST_MATROSKA_ID_LACENUMBER 0xCC -/* semi-draft */ -#define GST_MATROSKA_ID_FRAMENUMBER 0xCD -/* semi-draft */ -#define GST_MATROSKA_ID_BLOCKADDITIONID 0xCB -/* semi-draft */ -#define GST_MATROSKA_ID_TIMESLICEDELAY 0xCE -#define GST_MATROSKA_ID_TIMESLICEDURATION 0xCF - -/* IDs in the Attachments master */ -#define GST_MATROSKA_ID_ATTACHEDFILE 0x61A7 - -/* IDs in the AttachedFile master */ -#define GST_MATROSKA_ID_FILEDESCRIPTION 0x467E -#define GST_MATROSKA_ID_FILENAME 0x466E -#define GST_MATROSKA_ID_FILEMIMETYPE 0x4660 -#define GST_MATROSKA_ID_FILEDATA 0x465C -#define GST_MATROSKA_ID_FILEUID 0x46AE -/* semi-draft */ -#define GST_MATROSKA_ID_FILEREFERRAL 0x4675 - -/* IDs in the Chapters master */ -#define GST_MATROSKA_ID_EDITIONENTRY 0x45B9 - -/* IDs in the EditionEntry master */ -#define GST_MATROSKA_ID_EDITIONUID 0x45BC -#define GST_MATROSKA_ID_EDITIONFLAGHIDDEN 0x45BD -#define GST_MATROSKA_ID_EDITIONFLAGDEFAULT 0x45DB -#define GST_MATROSKA_ID_EDITIONFLAGORDERED 0x45DD -#define GST_MATROSKA_ID_CHAPTERATOM 0xB6 - -/* IDs in the ChapterAtom master */ -#define GST_MATROSKA_ID_CHAPTERUID 0x73C4 -#define GST_MATROSKA_ID_CHAPTERTIMESTART 0x91 -#define GST_MATROSKA_ID_CHAPTERTIMESTOP 0x92 -#define GST_MATROSKA_ID_CHAPTERFLAGHIDDEN 0x98 -#define GST_MATROSKA_ID_CHAPTERFLAGENABLED 0x4598 -#define GST_MATROSKA_ID_CHAPTERSEGMENTUID 0x6E67 -#define GST_MATROSKA_ID_CHAPTERSEGMENTEDITIONUID 0x6EBC -#define GST_MATROSKA_ID_CHAPTERPHYSICALEQUIV 0x63C3 -#define GST_MATROSKA_ID_CHAPTERTRACK 0x8F -#define GST_MATROSKA_ID_CHAPTERDISPLAY 0x80 -#define GST_MATROSKA_ID_CHAPPROCESS 0x6944 - -/* IDs in the ChapProcess master */ -#define GST_MATROSKA_ID_CHAPPROCESSCODECID 0x6955 -#define GST_MATROSKA_ID_CHAPPROCESSPRIVATE 0x450D -#define GST_MATROSKA_ID_CHAPPROCESSCOMMAND 0x6911 - -/* IDs in the ChapProcessCommand master */ -#define GST_MATROSKA_ID_CHAPPROCESSTIME 0x6922 -#define GST_MATROSKA_ID_CHAPPROCESSDATA 0x6933 - -/* IDs in the ChapterDisplay master */ -#define GST_MATROSKA_ID_CHAPSTRING 0x85 -#define GST_MATROSKA_ID_CHAPLANGUAGE 0x437C -#define GST_MATROSKA_ID_CHAPCOUNTRY 0x437E - -/* IDs in the ChapterTrack master */ -#define GST_MATROSKA_ID_CHAPTERTRACKNUMBER 0x89 - -/* - * Matroska Codec IDs. Strings. - */ - -#define GST_MATROSKA_CODEC_ID_VIDEO_VFW_FOURCC "V_MS/VFW/FOURCC" -#define GST_MATROSKA_CODEC_ID_VIDEO_UNCOMPRESSED "V_UNCOMPRESSED" -#define GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_SP "V_MPEG4/ISO/SP" -#define GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP "V_MPEG4/ISO/ASP" -#define GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AP "V_MPEG4/ISO/AP" -#define GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AVC "V_MPEG4/ISO/AVC" -#define GST_MATROSKA_CODEC_ID_VIDEO_MSMPEG4V3 "V_MPEG4/MS/V3" -#define GST_MATROSKA_CODEC_ID_VIDEO_MPEG1 "V_MPEG1" -#define GST_MATROSKA_CODEC_ID_VIDEO_MPEG2 "V_MPEG2" -/* FIXME: not (yet) in the spec! */ -#define GST_MATROSKA_CODEC_ID_VIDEO_MJPEG "V_MJPEG" -#define GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1 "V_REAL/RV10" -#define GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2 "V_REAL/RV20" -#define GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3 "V_REAL/RV30" -#define GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4 "V_REAL/RV40" -#define GST_MATROSKA_CODEC_ID_VIDEO_THEORA "V_THEORA" -#define GST_MATROSKA_CODEC_ID_VIDEO_QUICKTIME "V_QUICKTIME" -#define GST_MATROSKA_CODEC_ID_VIDEO_SNOW "V_SNOW" -#define GST_MATROSKA_CODEC_ID_VIDEO_DIRAC "V_DIRAC" -#define GST_MATROSKA_CODEC_ID_VIDEO_VP8 "V_VP8" - -#define GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1 "A_MPEG/L1" -#define GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2 "A_MPEG/L2" -#define GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L3 "A_MPEG/L3" -#define GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE "A_PCM/INT/BIG" -#define GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_LE "A_PCM/INT/LIT" -#define GST_MATROSKA_CODEC_ID_AUDIO_PCM_FLOAT "A_PCM/FLOAT/IEEE" -#define GST_MATROSKA_CODEC_ID_AUDIO_AC3 "A_AC3" -#define GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID9 "A_AC3/BSID9" -#define GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID10 "A_AC3/BSID10" -#define GST_MATROSKA_CODEC_ID_AUDIO_EAC3 "A_EAC3" -#define GST_MATROSKA_CODEC_ID_AUDIO_DTS "A_DTS" -#define GST_MATROSKA_CODEC_ID_AUDIO_VORBIS "A_VORBIS" -#define GST_MATROSKA_CODEC_ID_AUDIO_FLAC "A_FLAC" -/* FIXME: not yet in the spec */ -#define GST_MATROSKA_CODEC_ID_AUDIO_SPEEX "A_SPEEX" -#define GST_MATROSKA_CODEC_ID_AUDIO_ACM "A_MS/ACM" -#define GST_MATROSKA_CODEC_ID_AUDIO_TTA "A_TTA1" -#define GST_MATROSKA_CODEC_ID_AUDIO_WAVPACK4 "A_WAVPACK4" -#define GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4 "A_REAL/14_4" -#define GST_MATROSKA_CODEC_ID_AUDIO_REAL_28_8 "A_REAL/28_8" -#define GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK "A_REAL/COOK" -#define GST_MATROSKA_CODEC_ID_AUDIO_REAL_SIPR "A_REAL/SIPR" -#define GST_MATROSKA_CODEC_ID_AUDIO_REAL_RALF "A_REAL/RALF" -#define GST_MATROSKA_CODEC_ID_AUDIO_REAL_ATRC "A_REAL/ATRC" -#define GST_MATROSKA_CODEC_ID_AUDIO_AAC "A_AAC" -#define GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2 "A_AAC/MPEG2/" -#define GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4 "A_AAC/MPEG4/" -#define GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDMC "A_QUICKTIME/QDMC" -#define GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDM2 "A_QUICKTIME/QDM2" -/* Undefined for now: -#define GST_MATROSKA_CODEC_ID_AUDIO_MPC "A_MPC" -*/ - -#define GST_MATROSKA_CODEC_ID_SUBTITLE_ASCII "S_TEXT/ASCII" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_UTF8 "S_TEXT/UTF8" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_SSA "S_TEXT/SSA" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_ASS "S_TEXT/ASS" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_USF "S_TEXT/USF" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_VOBSUB "S_VOBSUB" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_HDMVPGS "S_HDMV/PGS" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_BMP "S_IMAGE/BMP" -#define GST_MATROSKA_CODEC_ID_SUBTITLE_KATE "S_KATE" - -/* - * Matroska tags. Strings. - */ - -#define GST_MATROSKA_TAG_ID_TITLE "TITLE" -#define GST_MATROSKA_TAG_ID_AUTHOR "AUTHOR" -#define GST_MATROSKA_TAG_ID_ARTIST "ARTIST" -#define GST_MATROSKA_TAG_ID_ALBUM "ALBUM" -#define GST_MATROSKA_TAG_ID_COMMENTS "COMMENTS" -#define GST_MATROSKA_TAG_ID_BITSPS "BITSPS" -#define GST_MATROSKA_TAG_ID_BPS "BPS" -#define GST_MATROSKA_TAG_ID_ENCODER "ENCODER" -#define GST_MATROSKA_TAG_ID_DATE "DATE" -#define GST_MATROSKA_TAG_ID_ISRC "ISRC" -#define GST_MATROSKA_TAG_ID_COPYRIGHT "COPYRIGHT" -#define GST_MATROSKA_TAG_ID_BPM "BPM" -#define GST_MATROSKA_TAG_ID_TERMS_OF_USE "TERMS_OF_USE" -#define GST_MATROSKA_TAG_ID_DATE "DATE" -#define GST_MATROSKA_TAG_ID_COMPOSER "COMPOSER" -#define GST_MATROSKA_TAG_ID_LEAD_PERFORMER "LEAD_PERFOMER" -#define GST_MATROSKA_TAG_ID_GENRE "GENRE" - -/* - * TODO: add this tag & mappings - * "REPLAYGAIN_GAIN" -> GST_TAG_*_GAIN see http://replaygain.hydrogenaudio.org/rg_data_format.html - * "REPLAYGAIN_PEAK" -> GST_TAG_*_PEAK see http://replaygain.hydrogenaudio.org/peak_data_format.html - * both are depending on the target (track, album?) - * - * "TOTAL_PARTS" -> GST_TAG_TRACK_COUNT depending on target - * "PART_NUMBER" -> GST_TAG_TRACK_NUMBER depending on target - * - * "SORT_WITH" -> nested in other elements, GST_TAG_TITLE_SORTNAME, etc - * - * TODO: maybe add custom gstreamer tags for other standard matroska tags, - * see http://matroska.org/technical/specs/tagging/index.html - * - * TODO: handle tag targets and nesting correctly - */ - -/* - * Enumerations for various types (mapping from binary - * value to what it actually means). - */ - -typedef enum { - GST_MATROSKA_TRACK_TYPE_VIDEO = 0x1, - GST_MATROSKA_TRACK_TYPE_AUDIO = 0x2, - GST_MATROSKA_TRACK_TYPE_COMPLEX = 0x3, - GST_MATROSKA_TRACK_TYPE_LOGO = 0x10, - GST_MATROSKA_TRACK_TYPE_SUBTITLE = 0x11, - GST_MATROSKA_TRACK_TYPE_BUTTONS = 0x12, - GST_MATROSKA_TRACK_TYPE_CONTROL = 0x20, -} GstMatroskaTrackType; - -typedef enum { - GST_MATROSKA_ASPECT_RATIO_MODE_FREE = 0x0, - GST_MATROSKA_ASPECT_RATIO_MODE_KEEP = 0x1, - GST_MATROSKA_ASPECT_RATIO_MODE_FIXED = 0x2, -} GstMatroskaAspectRatioMode; - -/* - * These aren't in any way "matroska-form" things, - * it's just something I use in the muxer/demuxer. - */ - -typedef enum { - GST_MATROSKA_TRACK_ENABLED = (1<<0), - GST_MATROSKA_TRACK_DEFAULT = (1<<1), - GST_MATROSKA_TRACK_LACING = (1<<2), - GST_MATROSKA_TRACK_FORCED = (1<<3), - GST_MATROSKA_TRACK_SHIFT = (1<<16) -} GstMatroskaTrackFlags; - -typedef enum { - GST_MATROSKA_VIDEOTRACK_INTERLACED = (GST_MATROSKA_TRACK_SHIFT<<0) -} GstMatroskaVideoTrackFlags; - - -typedef struct _GstMatroskaTrackContext GstMatroskaTrackContext; - -/* TODO: check if all fields are used */ -struct _GstMatroskaTrackContext { - GstPad *pad; - GstCaps *caps; - guint index; - GstFlowReturn last_flow; - /* reverse playback */ - GstClockTime from_time; - gint64 from_offset; - gint64 to_offset; - - GArray *index_table; - - gint index_writer_id; - - /* some often-used info */ - gchar *codec_id, *codec_name, *name, *language; - guint8 *codec_priv; - guint codec_priv_size; - guint8 *codec_state; - guint codec_state_size; - GstMatroskaTrackType type; - guint uid, num; - GstMatroskaTrackFlags flags; - guint64 default_duration; - guint64 pos; - gdouble timecodescale; - - gboolean set_discont; /* TRUE = set DISCONT flag on next buffer */ - - /* Special flag for Vorbis and Theora, for which we need to send - * codec_priv first before sending any data, and just testing - * for time == 0 is not enough to detect that. Used by demuxer */ - gboolean send_xiph_headers; - - /* Special flag for Flac, for which we need to reconstruct the header - * buffer from the codec_priv data before sending any data, and just - * testing for time == 0 is not enough to detect that. Used by demuxer */ - gboolean send_flac_headers; - - /* Special flag for Speex, for which we need to reconstruct the header - * buffer from the codec_priv data before sending any data, and just - * testing for time == 0 is not enough to detect that. Used by demuxer */ - gboolean send_speex_headers; - - /* Special flag for VobSub, for which we have to send colour table info - * (if available) first before sending any data, and just testing - * for time == 0 is not enough to detect that. Used by demuxer */ - gboolean send_dvd_event; - - /* Special counter for muxer to skip the first N vorbis/theora headers - - * they are put into codec private data, not muxed into the stream */ - guint xiph_headers_to_skip; - - /* Used for postprocessing a frame before it is pushed from the demuxer */ - GstFlowReturn (*postprocess_frame) (GstElement *element, - GstMatroskaTrackContext *context, - GstBuffer **buffer); - - /* Tags to send after newsegment event */ - GstTagList *pending_tags; - - /* A GArray of GstMatroskaTrackEncoding structures which contain the - * encoding (compression/encryption) settings for this track, if any */ - GArray *encodings; - - /* Whether the stream is EOS */ - gboolean eos; -#ifdef MKV_DEMUX_MODIFICATION - GstClockTime last_ts; - GQueue* queue; - - gboolean found_next_kframe; - gint32 num_frames_bw_keyframes; - guint64 avg_duration_bw_keyframes; - guint32 frames_to_show_bw_keyframes; - GstClockTime prev_kframe_timestamp; - GstClockTime next_kframe_timestamp; -#endif - - /* any alignment we need our output buffers to have */ - gint alignment; -}; - -typedef struct _GstMatroskaTrackVideoContext { - GstMatroskaTrackContext parent; - - guint pixel_width, pixel_height; - guint display_width, display_height; - gdouble default_fps; - GstMatroskaAspectRatioMode asr_mode; - guint32 fourcc; - - /* QoS */ - GstClockTime earliest_time; - - GstBuffer *dirac_unit; -} GstMatroskaTrackVideoContext; - -typedef struct _GstMatroskaTrackAudioContext { - GstMatroskaTrackContext parent; - - guint samplerate, channels, bitdepth; - - guint32 wvpk_block_index; -} GstMatroskaTrackAudioContext; - -typedef struct _GstMatroskaTrackSubtitleContext { - GstMatroskaTrackContext parent; - - gboolean check_utf8; /* buffers should be valid UTF-8 */ - gboolean check_markup; /* check if buffers contain markup - * or plaintext and escape characters */ - gboolean invalid_utf8; /* work around broken files */ - gboolean seen_markup_tag; /* markup found in text */ -} GstMatroskaTrackSubtitleContext; - -typedef struct _GstMatroskaIndex { - guint64 pos; /* of the corresponding *cluster*! */ - guint16 track; /* reference to 'num' */ - GstClockTime time; /* in nanoseconds */ - guint32 block; /* number of the block in the cluster */ -} GstMatroskaIndex; - -typedef struct _Wavpack4Header { - guchar ck_id [4]; /* "wvpk" */ - guint32 ck_size; /* size of entire frame (minus 8, of course) */ - guint16 version; /* 0x403 for now */ - guint8 track_no; /* track number (0 if not used, like now) */ - guint8 index_no; /* remember these? (0 if not used, like now) */ - guint32 total_samples; /* for entire file (-1 if unknown) */ - guint32 block_index; /* index of first sample in block (to file begin) */ - guint32 block_samples; /* # samples in this block */ - guint32 flags; /* various flags for id and decoding */ - guint32 crc; /* crc for actual decoded data */ -} Wavpack4Header; - -typedef enum { - GST_MATROSKA_TRACK_ENCODING_SCOPE_FRAME = (1<<0), - GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA = (1<<1), - GST_MATROSKA_TRACK_ENCODING_SCOPE_NEXT_CONTENT_ENCODING = (1<<2) -} GstMatroskaTrackEncodingScope; - -typedef enum { - GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_ZLIB = 0, - GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_BZLIB = 1, - GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_LZO1X = 2, - GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_HEADERSTRIP = 3 -} GstMatroskaTrackCompressionAlgorithm; - -typedef struct _GstMatroskaTrackEncoding { - guint order; - guint scope : 3; - guint type : 1; - guint comp_algo : 2; - guint8 *comp_settings; - guint comp_settings_length; -} GstMatroskaTrackEncoding; - -gboolean gst_matroska_track_init_video_context (GstMatroskaTrackContext ** p_context); -gboolean gst_matroska_track_init_audio_context (GstMatroskaTrackContext ** p_context); -gboolean gst_matroska_track_init_subtitle_context (GstMatroskaTrackContext ** p_context); - -void gst_matroska_register_tags (void); - -#endif /* __GST_MATROSKA_IDS_H__ */ diff --git a/mobile/gst/matroska/matroska-mux.c b/mobile/gst/matroska/matroska-mux.c deleted file mode 100644 index 30c0cdb..0000000 --- a/mobile/gst/matroska/matroska-mux.c +++ /dev/null @@ -1,3167 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2005 Michal Benes <michal.benes@xeris.cz> - * (c) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk> - * - * matroska-mux.c: matroska file/stream muxer - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* TODO: - check everywhere that we don't write invalid values - * - make sure timestamps are correctly scaled everywhere - */ - -/** - * SECTION:element-matroskamux - * - * matroskamux muxes different input streams into a Matroska file. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch -v filesrc location=/path/to/mp3 ! mp3parse ! matroskamux name=mux ! filesink location=test.mkv filesrc location=/path/to/theora.ogg ! oggdemux ! theoraparse ! mux. - * ]| This pipeline muxes an MP3 file and a Ogg Theora video into a Matroska file. - * |[ - * gst-launch -v audiotestsrc num-buffers=100 ! audioconvert ! vorbisenc ! matroskamux ! filesink location=test.mka - * ]| This pipeline muxes a 440Hz sine wave encoded with the Vorbis codec into a Matroska file. - * </refsect2> - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <math.h> -#include <stdio.h> -#include <string.h> - -#include <gst/riff/riff-media.h> -#include <gst/tag/tag.h> - -#include "matroska-mux.h" -#include "matroska-ids.h" - -GST_DEBUG_CATEGORY_STATIC (matroskamux_debug); -#define GST_CAT_DEFAULT matroskamux_debug - -enum -{ - ARG_0, - ARG_WRITING_APP, - ARG_DOCTYPE_VERSION, - ARG_MIN_INDEX_INTERVAL, - ARG_STREAMABLE -}; - -#define DEFAULT_DOCTYPE_VERSION 2 -#define DEFAULT_WRITING_APP "GStreamer Matroska muxer" -#define DEFAULT_MIN_INDEX_INTERVAL 0 -#define DEFAULT_STREAMABLE FALSE - -/* WAVEFORMATEX is gst_riff_strf_auds + an extra guint16 extension size */ -#define WAVEFORMATEX_SIZE (2 + sizeof (gst_riff_strf_auds)) - -static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("video/x-matroska") - ); - -#define COMMON_VIDEO_CAPS \ - "width = (int) [ 16, 4096 ], " \ - "height = (int) [ 16, 4096 ], " \ - "framerate = (fraction) [ 0, MAX ]" - -#define COMMON_VIDEO_CAPS_NO_FRAMERATE \ - "width = (int) [ 16, 4096 ], " \ - "height = (int) [ 16, 4096 ] " - -/* FIXME: - * * require codec data, etc as needed - */ - -static GstStaticPadTemplate videosink_templ = - GST_STATIC_PAD_TEMPLATE ("video_%d", - GST_PAD_SINK, - GST_PAD_REQUEST, - GST_STATIC_CAPS ("video/mpeg, " - "mpegversion = (int) { 1, 2, 4 }, " - "systemstream = (boolean) false, " - COMMON_VIDEO_CAPS "; " - "video/x-h264, stream-format=avc, alignment=au, " - COMMON_VIDEO_CAPS "; " - "video/x-divx, " - COMMON_VIDEO_CAPS "; " - "video/x-xvid, " - COMMON_VIDEO_CAPS "; " - "video/x-huffyuv, " - COMMON_VIDEO_CAPS "; " - "video/x-dv, " - COMMON_VIDEO_CAPS "; " - "video/x-h263, " - COMMON_VIDEO_CAPS "; " - "video/x-msmpeg, " - COMMON_VIDEO_CAPS "; " - "image/jpeg, " - COMMON_VIDEO_CAPS_NO_FRAMERATE "; " - "video/x-theora; " - "video/x-dirac, " - COMMON_VIDEO_CAPS "; " - "video/x-pn-realvideo, " - "rmversion = (int) [1, 4], " - COMMON_VIDEO_CAPS "; " - "video/x-vp8, " - COMMON_VIDEO_CAPS "; " - "video/x-raw-yuv, " - "format = (fourcc) { YUY2, I420, YV12, UYVY, AYUV }, " - COMMON_VIDEO_CAPS "; " - "video/x-wmv, " "wmvversion = (int) [ 1, 3 ], " COMMON_VIDEO_CAPS) - ); - -#define COMMON_AUDIO_CAPS \ - "channels = (int) [ 1, MAX ], " \ - "rate = (int) [ 1, MAX ]" - -/* FIXME: - * * require codec data, etc as needed - */ -static GstStaticPadTemplate audiosink_templ = - GST_STATIC_PAD_TEMPLATE ("audio_%d", - GST_PAD_SINK, - GST_PAD_REQUEST, - GST_STATIC_CAPS ("audio/mpeg, " - "mpegversion = (int) 1, " - "layer = (int) [ 1, 3 ], " - COMMON_AUDIO_CAPS "; " - "audio/mpeg, " - "mpegversion = (int) { 2, 4 }, " - "stream-format = (string) raw, " - COMMON_AUDIO_CAPS "; " - "audio/x-ac3, " - COMMON_AUDIO_CAPS "; " - "audio/x-eac3, " - COMMON_AUDIO_CAPS "; " - "audio/x-dts, " - COMMON_AUDIO_CAPS "; " - "audio/x-vorbis, " - COMMON_AUDIO_CAPS "; " - "audio/x-flac, " - COMMON_AUDIO_CAPS "; " - "audio/x-speex, " - COMMON_AUDIO_CAPS "; " - "audio/x-raw-int, " - "width = (int) 8, " - "depth = (int) 8, " - "signed = (boolean) false, " - COMMON_AUDIO_CAPS ";" - "audio/x-raw-int, " - "width = (int) 16, " - "depth = (int) 16, " - "endianness = (int) { BIG_ENDIAN, LITTLE_ENDIAN }, " - "signed = (boolean) true, " - COMMON_AUDIO_CAPS ";" - "audio/x-raw-int, " - "width = (int) 24, " - "depth = (int) 24, " - "endianness = (int) { BIG_ENDIAN, LITTLE_ENDIAN }, " - "signed = (boolean) true, " - COMMON_AUDIO_CAPS ";" - "audio/x-raw-int, " - "width = (int) 32, " - "depth = (int) 32, " - "endianness = (int) { BIG_ENDIAN, LITTLE_ENDIAN }, " - "signed = (boolean) true, " - COMMON_AUDIO_CAPS ";" - "audio/x-raw-float, " - "width = (int) [ 32, 64 ], " - "endianness = (int) LITTLE_ENDIAN, " - COMMON_AUDIO_CAPS ";" - "audio/x-tta, " - "width = (int) { 8, 16, 24 }, " - "channels = (int) { 1, 2 }, " "rate = (int) [ 8000, 96000 ]; " - "audio/x-pn-realaudio, " - "raversion = (int) { 1, 2, 8 }, " COMMON_AUDIO_CAPS "; " - "audio/x-wma, " "wmaversion = (int) [ 1, 3 ], " - "block_align = (int) [ 0, 65535 ], bitrate = (int) [ 0, 524288 ], " - COMMON_AUDIO_CAPS ";" - "audio/x-alaw, " - "channels = (int) {1, 2}, " "rate = (int) [ 8000, 192000 ]; " - "audio/x-mulaw, " - "channels = (int) {1, 2}, " "rate = (int) [ 8000, 192000 ]") - ); - -static GstStaticPadTemplate subtitlesink_templ = -GST_STATIC_PAD_TEMPLATE ("subtitle_%d", - GST_PAD_SINK, - GST_PAD_REQUEST, - GST_STATIC_CAPS ("subtitle/x-kate")); - -static GArray *used_uids; -G_LOCK_DEFINE_STATIC (used_uids); - -static void gst_matroska_mux_add_interfaces (GType type); - -GST_BOILERPLATE_FULL (GstMatroskaMux, gst_matroska_mux, GstElement, - GST_TYPE_ELEMENT, gst_matroska_mux_add_interfaces); - -/* Matroska muxer destructor */ -static void gst_matroska_mux_finalize (GObject * object); - -/* Pads collected callback */ -static GstFlowReturn -gst_matroska_mux_collected (GstCollectPads * pads, gpointer user_data); - -/* pad functions */ -static gboolean gst_matroska_mux_handle_src_event (GstPad * pad, - GstEvent * event); -static GstPad *gst_matroska_mux_request_new_pad (GstElement * element, - GstPadTemplate * templ, const gchar * name); -static void gst_matroska_mux_release_pad (GstElement * element, GstPad * pad); - -/* gst internal change state handler */ -static GstStateChangeReturn -gst_matroska_mux_change_state (GstElement * element, GstStateChange transition); - -/* gobject bla bla */ -static void gst_matroska_mux_set_property (GObject * object, - guint prop_id, const GValue * value, GParamSpec * pspec); -static void gst_matroska_mux_get_property (GObject * object, - guint prop_id, GValue * value, GParamSpec * pspec); - -/* reset muxer */ -static void gst_matroska_mux_reset (GstElement * element); - -/* uid generation */ -static guint64 gst_matroska_mux_create_uid (); - -static gboolean theora_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context); -static gboolean vorbis_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context); -static gboolean speex_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context); -static gboolean kate_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context); -static gboolean flac_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context); -static void -gst_matroska_mux_write_simple_tag (const GstTagList * list, const gchar * tag, - gpointer data); - -static void -gst_matroska_mux_add_interfaces (GType type) -{ - static const GInterfaceInfo tag_setter_info = { NULL, NULL, NULL }; - - g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, &tag_setter_info); -} - -static void -gst_matroska_mux_base_init (gpointer g_class) -{ -} - -static void -gst_matroska_mux_class_init (GstMatroskaMuxClass * klass) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - - gobject_class = (GObjectClass *) klass; - gstelement_class = (GstElementClass *) klass; - - gst_element_class_add_static_pad_template (gstelement_class, - &videosink_templ); - gst_element_class_add_static_pad_template (gstelement_class, - &audiosink_templ); - gst_element_class_add_static_pad_template (gstelement_class, - &subtitlesink_templ); - gst_element_class_add_static_pad_template (gstelement_class, &src_templ); - gst_element_class_set_details_simple (gstelement_class, "Matroska muxer", - "Codec/Muxer", - "Muxes video/audio/subtitle streams into a matroska stream", - "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>"); - - GST_DEBUG_CATEGORY_INIT (matroskamux_debug, "matroskamux", 0, - "Matroska muxer"); - - gobject_class->finalize = gst_matroska_mux_finalize; - - gobject_class->get_property = gst_matroska_mux_get_property; - gobject_class->set_property = gst_matroska_mux_set_property; - - g_object_class_install_property (gobject_class, ARG_WRITING_APP, - g_param_spec_string ("writing-app", "Writing application.", - "The name the application that creates the matroska file.", - NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); - g_object_class_install_property (gobject_class, ARG_DOCTYPE_VERSION, - g_param_spec_int ("version", "DocType version", - "This parameter determines what Matroska features can be used.", - 1, 2, DEFAULT_DOCTYPE_VERSION, - G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); - g_object_class_install_property (gobject_class, ARG_MIN_INDEX_INTERVAL, - g_param_spec_int64 ("min-index-interval", "Minimum time between index " - "entries", "An index entry is created every so many nanoseconds.", - 0, G_MAXINT64, DEFAULT_MIN_INDEX_INTERVAL, - G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); - g_object_class_install_property (gobject_class, ARG_STREAMABLE, - g_param_spec_boolean ("streamable", "Determines whether output should " - "be streamable", "If set to true, the output should be as if it is " - "to be streamed and hence no indexes written or duration written.", - DEFAULT_STREAMABLE, - G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_STATIC_STRINGS)); - - gstelement_class->change_state = - GST_DEBUG_FUNCPTR (gst_matroska_mux_change_state); - gstelement_class->request_new_pad = - GST_DEBUG_FUNCPTR (gst_matroska_mux_request_new_pad); - gstelement_class->release_pad = - GST_DEBUG_FUNCPTR (gst_matroska_mux_release_pad); -} - -/** - * Start of pad option handler code - */ -#define DEFAULT_PAD_FRAME_DURATION TRUE -#define DEFAULT_PAD_FRAME_DURATION_VP8 FALSE - -enum -{ - PROP_PAD_0, - PROP_PAD_FRAME_DURATION -}; - -typedef struct -{ - GstPad parent; - gboolean frame_duration; - gboolean frame_duration_user; -} GstMatroskamuxPad; - -static void gst_matroskamux_pad_class_init (GstPadClass * klass); - -static GType -gst_matroskamux_pad_get_type (void) -{ - static GType type = 0; - - if (G_UNLIKELY (type == 0)) { - type = g_type_register_static_simple (GST_TYPE_PAD, - g_intern_static_string ("GstMatroskamuxPad"), sizeof (GstPadClass), - (GClassInitFunc) gst_matroskamux_pad_class_init, - sizeof (GstMatroskamuxPad), NULL, 0); - } - return type; -} - -#define GST_TYPE_MATROSKAMUX_PAD (gst_matroskamux_pad_get_type()) -#define GST_MATROSKAMUX_PAD(pad) (G_TYPE_CHECK_INSTANCE_CAST((pad),GST_TYPE_MATROSKAMUX_PAD,GstMatroskamuxPad)) -#define GST_MATROSKAMUX_PAD_CAST(pad) ((GstMatroskamuxPad *) pad) -#define GST_IS_MATROSKAMUX_PAD(pad) (G_TYPE_CHECK_INSTANCE_TYPE((pad),GST_TYPE_MATROSKAMUX_PAD)) - -static void -gst_matroskamux_pad_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec) -{ - GstMatroskamuxPad *pad = GST_MATROSKAMUX_PAD (object); - - switch (prop_id) { - case PROP_PAD_FRAME_DURATION: - g_value_set_boolean (value, pad->frame_duration); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_matroskamux_pad_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstMatroskamuxPad *pad = GST_MATROSKAMUX_PAD (object); - - switch (prop_id) { - case PROP_PAD_FRAME_DURATION: - pad->frame_duration = g_value_get_boolean (value); - pad->frame_duration_user = TRUE; - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_matroskamux_pad_class_init (GstPadClass * klass) -{ - GObjectClass *gobject_class = (GObjectClass *) klass; - - gobject_class->set_property = gst_matroskamux_pad_set_property; - gobject_class->get_property = gst_matroskamux_pad_get_property; - - g_object_class_install_property (gobject_class, PROP_PAD_FRAME_DURATION, - g_param_spec_boolean ("frame-duration", "Frame duration", - "Default frame duration", DEFAULT_PAD_FRAME_DURATION, - G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS)); -} - -static void -gst_matroskamux_pad_init (GstMatroskamuxPad * pad) -{ - pad->frame_duration = DEFAULT_PAD_FRAME_DURATION; - pad->frame_duration_user = FALSE; -} - -/* - * End of pad option handler code - **/ - -/** - * gst_matroska_mux_init: - * @mux: #GstMatroskaMux that should be initialized. - * @g_class: Class of the muxer. - * - * Matroska muxer constructor. - */ -static void -gst_matroska_mux_init (GstMatroskaMux * mux, GstMatroskaMuxClass * g_class) -{ - GstPadTemplate *templ; - - templ = - gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "src"); - mux->srcpad = gst_pad_new_from_template (templ, "src"); - - gst_pad_set_event_function (mux->srcpad, gst_matroska_mux_handle_src_event); - gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad); - - mux->collect = gst_collect_pads_new (); - gst_collect_pads_set_function (mux->collect, - (GstCollectPadsFunction) GST_DEBUG_FUNCPTR (gst_matroska_mux_collected), - mux); - - mux->ebml_write = gst_ebml_write_new (mux->srcpad); - mux->doctype = GST_MATROSKA_DOCTYPE_MATROSKA; - - /* property defaults */ - mux->doctype_version = DEFAULT_DOCTYPE_VERSION; - mux->writing_app = g_strdup (DEFAULT_WRITING_APP); - mux->min_index_interval = DEFAULT_MIN_INDEX_INTERVAL; - mux->streamable = DEFAULT_STREAMABLE; - - /* initialize internal variables */ - mux->index = NULL; - mux->num_streams = 0; - mux->num_a_streams = 0; - mux->num_t_streams = 0; - mux->num_v_streams = 0; - - /* initialize remaining variables */ - gst_matroska_mux_reset (GST_ELEMENT (mux)); -} - - -/** - * gst_matroska_mux_finalize: - * @object: #GstMatroskaMux that should be finalized. - * - * Finalize matroska muxer. - */ -static void -gst_matroska_mux_finalize (GObject * object) -{ - GstMatroskaMux *mux = GST_MATROSKA_MUX (object); - - gst_event_replace (&mux->force_key_unit_event, NULL); - - gst_object_unref (mux->collect); - gst_object_unref (mux->ebml_write); - if (mux->writing_app) - g_free (mux->writing_app); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - - -/** - * gst_matroska_mux_create_uid: - * - * Generate new unused track UID. - * - * Returns: New track UID. - */ -static guint64 -gst_matroska_mux_create_uid (void) -{ - guint64 uid = 0; - - G_LOCK (used_uids); - - if (!used_uids) - used_uids = g_array_sized_new (FALSE, FALSE, sizeof (guint64), 10); - - while (!uid) { - guint i; - - uid = (((guint64) g_random_int ()) << 32) | g_random_int (); - for (i = 0; i < used_uids->len; i++) { - if (g_array_index (used_uids, guint64, i) == uid) { - uid = 0; - break; - } - } - g_array_append_val (used_uids, uid); - } - - G_UNLOCK (used_uids); - return uid; -} - - -/** - * gst_matroska_pad_reset: - * @collect_pad: the #GstMatroskaPad - * - * Reset and/or release resources of a matroska collect pad. - */ -static void -gst_matroska_pad_reset (GstMatroskaPad * collect_pad, gboolean full) -{ - gchar *name = NULL; - GstMatroskaTrackType type = 0; - - /* free track information */ - if (collect_pad->track != NULL) { - /* retrieve for optional later use */ - name = collect_pad->track->name; - type = collect_pad->track->type; - /* extra for video */ - if (type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - GstMatroskaTrackVideoContext *ctx = - (GstMatroskaTrackVideoContext *) collect_pad->track; - - if (ctx->dirac_unit) { - gst_buffer_unref (ctx->dirac_unit); - ctx->dirac_unit = NULL; - } - } - g_free (collect_pad->track->codec_id); - g_free (collect_pad->track->codec_name); - if (full) - g_free (collect_pad->track->name); - g_free (collect_pad->track->language); - g_free (collect_pad->track->codec_priv); - g_free (collect_pad->track); - collect_pad->track = NULL; - } - - /* free cached buffer */ - if (collect_pad->buffer != NULL) { - gst_buffer_unref (collect_pad->buffer); - collect_pad->buffer = NULL; - } - - if (!full && type != 0) { - GstMatroskaTrackContext *context; - - /* create a fresh context */ - switch (type) { - case GST_MATROSKA_TRACK_TYPE_VIDEO: - context = (GstMatroskaTrackContext *) - g_new0 (GstMatroskaTrackVideoContext, 1); - break; - case GST_MATROSKA_TRACK_TYPE_AUDIO: - context = (GstMatroskaTrackContext *) - g_new0 (GstMatroskaTrackAudioContext, 1); - break; - case GST_MATROSKA_TRACK_TYPE_SUBTITLE: - context = (GstMatroskaTrackContext *) - g_new0 (GstMatroskaTrackSubtitleContext, 1); - break; - default: - g_assert_not_reached (); - return; - } - - context->type = type; - context->name = name; - /* TODO: check default values for the context */ - context->flags = GST_MATROSKA_TRACK_ENABLED | GST_MATROSKA_TRACK_DEFAULT; - collect_pad->track = context; - collect_pad->buffer = NULL; - collect_pad->duration = 0; - collect_pad->start_ts = GST_CLOCK_TIME_NONE; - collect_pad->end_ts = GST_CLOCK_TIME_NONE; - } -} - -/** - * gst_matroska_pad_free: - * @collect_pad: the #GstMatroskaPad - * - * Release resources of a matroska collect pad. - */ -static void -gst_matroska_pad_free (GstMatroskaPad * collect_pad) -{ - gst_matroska_pad_reset (collect_pad, TRUE); -} - - -/** - * gst_matroska_mux_reset: - * @element: #GstMatroskaMux that should be reseted. - * - * Reset matroska muxer back to initial state. - */ -static void -gst_matroska_mux_reset (GstElement * element) -{ - GstMatroskaMux *mux = GST_MATROSKA_MUX (element); - GSList *walk; - - /* reset EBML write */ - gst_ebml_write_reset (mux->ebml_write); - - /* reset input */ - mux->state = GST_MATROSKA_MUX_STATE_START; - - /* clean up existing streams */ - - for (walk = mux->collect->data; walk; walk = g_slist_next (walk)) { - GstMatroskaPad *collect_pad; - - collect_pad = (GstMatroskaPad *) walk->data; - - /* reset collect pad to pristine state */ - gst_matroska_pad_reset (collect_pad, FALSE); - } - - /* reset indexes */ - mux->num_indexes = 0; - g_free (mux->index); - mux->index = NULL; - - /* reset timers */ - mux->time_scale = GST_MSECOND; - mux->max_cluster_duration = G_MAXINT16 * mux->time_scale; - mux->duration = 0; - - /* reset cluster */ - mux->cluster = 0; - mux->cluster_time = 0; - mux->cluster_pos = 0; - mux->prev_cluster_size = 0; - - /* reset tags */ - gst_tag_setter_reset_tags (GST_TAG_SETTER (mux)); -} - -/** - * gst_matroska_mux_handle_src_event: - * @pad: Pad which received the event. - * @event: Received event. - * - * handle events - copied from oggmux without understanding - * - * Returns: #TRUE on success. - */ -static gboolean -gst_matroska_mux_handle_src_event (GstPad * pad, GstEvent * event) -{ - GstEventType type; - - type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN; - - switch (type) { - case GST_EVENT_SEEK: - /* disable seeking for now */ - return FALSE; - default: - break; - } - - return gst_pad_event_default (pad, event); -} - -/** - * gst_matroska_mux_handle_sink_event: - * @pad: Pad which received the event. - * @event: Received event. - * - * handle events - informational ones like tags - * - * Returns: #TRUE on success. - */ -static gboolean -gst_matroska_mux_handle_sink_event (GstPad * pad, GstEvent * event) -{ - GstMatroskaTrackContext *context; - GstMatroskaPad *collect_pad; - GstMatroskaMux *mux; - GstTagList *list; - gboolean ret = TRUE; - - mux = GST_MATROSKA_MUX (gst_pad_get_parent (pad)); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_TAG:{ - gchar *lang = NULL; - - GST_DEBUG_OBJECT (mux, "received tag event"); - gst_event_parse_tag (event, &list); - - collect_pad = (GstMatroskaPad *) gst_pad_get_element_private (pad); - g_assert (collect_pad); - context = collect_pad->track; - g_assert (context); - - /* Matroska wants ISO 639-2B code, taglist most likely contains 639-1 */ - if (gst_tag_list_get_string (list, GST_TAG_LANGUAGE_CODE, &lang)) { - const gchar *lang_code; - - lang_code = gst_tag_get_language_code_iso_639_2B (lang); - if (lang_code) { - GST_INFO_OBJECT (pad, "Setting language to '%s'", lang_code); - context->language = g_strdup (lang_code); - } else { - GST_WARNING_OBJECT (pad, "Did not get language code for '%s'", lang); - } - g_free (lang); - } - - /* FIXME: what about stream-specific tags? */ - gst_tag_setter_merge_tags (GST_TAG_SETTER (mux), list, - gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (mux))); - - gst_event_unref (event); - /* handled this, don't want collectpads to forward it downstream */ - event = NULL; - break; - } - case GST_EVENT_NEWSEGMENT:{ - GstFormat format; - - gst_event_parse_new_segment (event, NULL, NULL, &format, NULL, NULL, - NULL); - if (format != GST_FORMAT_TIME) { - ret = FALSE; - gst_event_unref (event); - event = NULL; - } - break; - } - case GST_EVENT_CUSTOM_DOWNSTREAM:{ - const GstStructure *structure; - - structure = gst_event_get_structure (event); - if (gst_structure_has_name (structure, "GstForceKeyUnit")) { - gst_event_replace (&mux->force_key_unit_event, NULL); - mux->force_key_unit_event = event; - event = NULL; - } - break; - } - default: - break; - } - - /* now GstCollectPads can take care of the rest, e.g. EOS */ - if (event) - ret = mux->collect_event (pad, event); - - gst_object_unref (mux); - - return ret; -} - - -/** - * gst_matroska_mux_video_pad_setcaps: - * @pad: Pad which got the caps. - * @caps: New caps. - * - * Setcaps function for video sink pad. - * - * Returns: #TRUE on success. - */ -static gboolean -gst_matroska_mux_video_pad_setcaps (GstPad * pad, GstCaps * caps) -{ - GstMatroskaTrackContext *context = NULL; - GstMatroskaTrackVideoContext *videocontext; - GstMatroskaMux *mux; - GstMatroskaPad *collect_pad; - GstStructure *structure; - const gchar *mimetype; - const GValue *value = NULL; - const GstBuffer *codec_buf = NULL; - gint width, height, pixel_width, pixel_height; - gint fps_d, fps_n; - gboolean interlaced = FALSE; - - mux = GST_MATROSKA_MUX (GST_PAD_PARENT (pad)); - - /* find context */ - collect_pad = (GstMatroskaPad *) gst_pad_get_element_private (pad); - g_assert (collect_pad); - context = collect_pad->track; - g_assert (context); - g_assert (context->type == GST_MATROSKA_TRACK_TYPE_VIDEO); - videocontext = (GstMatroskaTrackVideoContext *) context; - - /* gst -> matroska ID'ing */ - structure = gst_caps_get_structure (caps, 0); - - mimetype = gst_structure_get_name (structure); - - if (gst_structure_get_boolean (structure, "interlaced", &interlaced) - && interlaced) - context->flags |= GST_MATROSKA_VIDEOTRACK_INTERLACED; - - if (!strcmp (mimetype, "video/x-theora")) { - /* we'll extract the details later from the theora identification header */ - goto skip_details; - } - - /* get general properties */ - /* spec says it is mandatory */ - if (!gst_structure_get_int (structure, "width", &width) || - !gst_structure_get_int (structure, "height", &height)) - goto refuse_caps; - - videocontext->pixel_width = width; - videocontext->pixel_height = height; - - /* set vp8 defaults or let user override it */ - if (GST_MATROSKAMUX_PAD_CAST (pad)->frame_duration_user == FALSE - && (!strcmp (mimetype, "video/x-vp8"))) - GST_MATROSKAMUX_PAD_CAST (pad)->frame_duration = - DEFAULT_PAD_FRAME_DURATION_VP8; - - if (GST_MATROSKAMUX_PAD_CAST (pad)->frame_duration - && gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d) - && fps_n > 0) { - context->default_duration = - gst_util_uint64_scale_int (GST_SECOND, fps_d, fps_n); - GST_LOG_OBJECT (pad, "default duration = %" GST_TIME_FORMAT, - GST_TIME_ARGS (context->default_duration)); - } else { - context->default_duration = 0; - } - if (gst_structure_get_fraction (structure, "pixel-aspect-ratio", - &pixel_width, &pixel_height)) { - if (pixel_width > pixel_height) { - videocontext->display_width = width * pixel_width / pixel_height; - videocontext->display_height = height; - } else if (pixel_width < pixel_height) { - videocontext->display_width = width; - videocontext->display_height = height * pixel_height / pixel_width; - } else { - videocontext->display_width = 0; - videocontext->display_height = 0; - } - } else { - videocontext->display_width = 0; - videocontext->display_height = 0; - } - -skip_details: - - videocontext->asr_mode = GST_MATROSKA_ASPECT_RATIO_MODE_FREE; - videocontext->fourcc = 0; - - /* TODO: - check if we handle all codecs by the spec, i.e. codec private - * data and other settings - * - add new formats - */ - - /* extract codec_data, may turn out needed */ - value = gst_structure_get_value (structure, "codec_data"); - if (value) - codec_buf = gst_value_get_buffer (value); - - /* find type */ - if (!strcmp (mimetype, "video/x-raw-yuv")) { - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_UNCOMPRESSED); - gst_structure_get_fourcc (structure, "format", &videocontext->fourcc); - } else if (!strcmp (mimetype, "video/x-xvid") /* MS/VfW compatibility cases */ - ||!strcmp (mimetype, "video/x-huffyuv") - || !strcmp (mimetype, "video/x-divx") - || !strcmp (mimetype, "video/x-dv") - || !strcmp (mimetype, "video/x-h263") - || !strcmp (mimetype, "video/x-msmpeg") - || !strcmp (mimetype, "video/x-wmv") - || !strcmp (mimetype, "image/jpeg")) { - gst_riff_strf_vids *bih; - gint size = sizeof (gst_riff_strf_vids); - guint32 fourcc = 0; - - if (!strcmp (mimetype, "video/x-xvid")) - fourcc = GST_MAKE_FOURCC ('X', 'V', 'I', 'D'); - else if (!strcmp (mimetype, "video/x-huffyuv")) - fourcc = GST_MAKE_FOURCC ('H', 'F', 'Y', 'U'); - else if (!strcmp (mimetype, "video/x-dv")) - fourcc = GST_MAKE_FOURCC ('D', 'V', 'S', 'D'); - else if (!strcmp (mimetype, "video/x-h263")) - fourcc = GST_MAKE_FOURCC ('H', '2', '6', '3'); - else if (!strcmp (mimetype, "video/x-divx")) { - gint divxversion; - - gst_structure_get_int (structure, "divxversion", &divxversion); - switch (divxversion) { - case 3: - fourcc = GST_MAKE_FOURCC ('D', 'I', 'V', '3'); - break; - case 4: - fourcc = GST_MAKE_FOURCC ('D', 'I', 'V', 'X'); - break; - case 5: - fourcc = GST_MAKE_FOURCC ('D', 'X', '5', '0'); - break; - } - } else if (!strcmp (mimetype, "video/x-msmpeg")) { - gint msmpegversion; - - gst_structure_get_int (structure, "msmpegversion", &msmpegversion); - switch (msmpegversion) { - case 41: - fourcc = GST_MAKE_FOURCC ('M', 'P', 'G', '4'); - break; - case 42: - fourcc = GST_MAKE_FOURCC ('M', 'P', '4', '2'); - break; - case 43: - goto msmpeg43; - break; - } - } else if (!strcmp (mimetype, "video/x-wmv")) { - gint wmvversion; - guint32 format; - if (gst_structure_get_fourcc (structure, "format", &format)) { - fourcc = format; - } else if (gst_structure_get_int (structure, "wmvversion", &wmvversion)) { - if (wmvversion == 2) { - fourcc = GST_MAKE_FOURCC ('W', 'M', 'V', '2'); - } else if (wmvversion == 1) { - fourcc = GST_MAKE_FOURCC ('W', 'M', 'V', '1'); - } else if (wmvversion == 3) { - fourcc = GST_MAKE_FOURCC ('W', 'M', 'V', '3'); - } - } - } else if (!strcmp (mimetype, "image/jpeg")) { - fourcc = GST_MAKE_FOURCC ('M', 'J', 'P', 'G'); - } - - if (!fourcc) - goto refuse_caps; - - bih = g_new0 (gst_riff_strf_vids, 1); - GST_WRITE_UINT32_LE (&bih->size, size); - GST_WRITE_UINT32_LE (&bih->width, videocontext->pixel_width); - GST_WRITE_UINT32_LE (&bih->height, videocontext->pixel_height); - GST_WRITE_UINT32_LE (&bih->compression, fourcc); - GST_WRITE_UINT16_LE (&bih->planes, (guint16) 1); - GST_WRITE_UINT16_LE (&bih->bit_cnt, (guint16) 24); - GST_WRITE_UINT32_LE (&bih->image_size, videocontext->pixel_width * - videocontext->pixel_height * 3); - - /* process codec private/initialization data, if any */ - if (codec_buf) { - size += GST_BUFFER_SIZE (codec_buf); - bih = g_realloc (bih, size); - GST_WRITE_UINT32_LE (&bih->size, size); - memcpy ((guint8 *) bih + sizeof (gst_riff_strf_vids), - GST_BUFFER_DATA (codec_buf), GST_BUFFER_SIZE (codec_buf)); - } - - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_VFW_FOURCC); - context->codec_priv = (gpointer) bih; - context->codec_priv_size = size; - } else if (!strcmp (mimetype, "video/x-h264")) { - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AVC); - - if (context->codec_priv != NULL) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - } - - /* Create avcC header */ - if (codec_buf != NULL) { - context->codec_priv_size = GST_BUFFER_SIZE (codec_buf); - context->codec_priv = g_malloc0 (context->codec_priv_size); - memcpy (context->codec_priv, GST_BUFFER_DATA (codec_buf), - context->codec_priv_size); - } - } else if (!strcmp (mimetype, "video/x-theora")) { - const GValue *streamheader; - - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_THEORA); - - if (context->codec_priv != NULL) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - } - - streamheader = gst_structure_get_value (structure, "streamheader"); - if (!theora_streamheader_to_codecdata (streamheader, context)) { - GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL), - ("theora stream headers missing or malformed")); - goto refuse_caps; - } - } else if (!strcmp (mimetype, "video/x-dirac")) { - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_DIRAC); - } else if (!strcmp (mimetype, "video/x-vp8")) { - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_VP8); - } else if (!strcmp (mimetype, "video/mpeg")) { - gint mpegversion; - - gst_structure_get_int (structure, "mpegversion", &mpegversion); - switch (mpegversion) { - case 1: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_MPEG1); - break; - case 2: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_MPEG2); - break; - case 4: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP); - break; - default: - goto refuse_caps; - } - - /* global headers may be in codec data */ - if (codec_buf != NULL) { - context->codec_priv_size = GST_BUFFER_SIZE (codec_buf); - context->codec_priv = g_malloc0 (context->codec_priv_size); - memcpy (context->codec_priv, GST_BUFFER_DATA (codec_buf), - context->codec_priv_size); - } - } else if (!strcmp (mimetype, "video/x-msmpeg")) { - msmpeg43: - /* can only make it here if preceding case verified it was version 3 */ - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_MSMPEG4V3); - } else if (!strcmp (mimetype, "video/x-pn-realvideo")) { - gint rmversion; - const GValue *mdpr_data; - - gst_structure_get_int (structure, "rmversion", &rmversion); - switch (rmversion) { - case 1: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1); - break; - case 2: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2); - break; - case 3: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3); - break; - case 4: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4); - break; - default: - goto refuse_caps; - } - - mdpr_data = gst_structure_get_value (structure, "mdpr_data"); - if (mdpr_data != NULL) { - guint8 *priv_data = NULL; - guint priv_data_size = 0; - - GstBuffer *codec_data_buf = g_value_peek_pointer (mdpr_data); - - priv_data_size = GST_BUFFER_SIZE (codec_data_buf); - priv_data = g_malloc0 (priv_data_size); - - memcpy (priv_data, GST_BUFFER_DATA (codec_data_buf), priv_data_size); - - context->codec_priv = priv_data; - context->codec_priv_size = priv_data_size; - } - } - - return TRUE; - - /* ERRORS */ -refuse_caps: - { - GST_WARNING_OBJECT (mux, "pad %s refused caps %" GST_PTR_FORMAT, - GST_PAD_NAME (pad), caps); - return FALSE; - } -} - -/* N > 0 to expect a particular number of headers, negative if the - number of headers is variable */ -static gboolean -xiphN_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context, GstBuffer ** p_buf0, int N) -{ - GstBuffer **buf = NULL; - GArray *bufarr; - guint8 *priv_data; - guint bufi, i, offset, priv_data_size; - - if (streamheader == NULL) - goto no_stream_headers; - - if (G_VALUE_TYPE (streamheader) != GST_TYPE_ARRAY) - goto wrong_type; - - bufarr = g_value_peek_pointer (streamheader); - if (bufarr->len <= 0 || bufarr->len > 255) /* at least one header, and count stored in a byte */ - goto wrong_count; - if (N > 0 && bufarr->len != N) - goto wrong_count; - - context->xiph_headers_to_skip = bufarr->len; - - buf = (GstBuffer **) g_malloc0 (sizeof (GstBuffer *) * bufarr->len); - for (i = 0; i < bufarr->len; i++) { - GValue *bufval = &g_array_index (bufarr, GValue, i); - - if (G_VALUE_TYPE (bufval) != GST_TYPE_BUFFER) { - g_free (buf); - goto wrong_content_type; - } - - buf[i] = g_value_peek_pointer (bufval); - } - - priv_data_size = 1; - if (bufarr->len > 0) { - for (i = 0; i < bufarr->len - 1; i++) { - priv_data_size += GST_BUFFER_SIZE (buf[i]) / 0xff + 1; - } - } - - for (i = 0; i < bufarr->len; ++i) { - priv_data_size += GST_BUFFER_SIZE (buf[i]); - } - - priv_data = g_malloc0 (priv_data_size); - - priv_data[0] = bufarr->len - 1; - offset = 1; - - if (bufarr->len > 0) { - for (bufi = 0; bufi < bufarr->len - 1; bufi++) { - for (i = 0; i < GST_BUFFER_SIZE (buf[bufi]) / 0xff; ++i) { - priv_data[offset++] = 0xff; - } - priv_data[offset++] = GST_BUFFER_SIZE (buf[bufi]) % 0xff; - } - } - - for (i = 0; i < bufarr->len; ++i) { - memcpy (priv_data + offset, GST_BUFFER_DATA (buf[i]), - GST_BUFFER_SIZE (buf[i])); - offset += GST_BUFFER_SIZE (buf[i]); - } - - context->codec_priv = priv_data; - context->codec_priv_size = priv_data_size; - - if (p_buf0) - *p_buf0 = gst_buffer_ref (buf[0]); - - g_free (buf); - - return TRUE; - -/* ERRORS */ -no_stream_headers: - { - GST_WARNING ("required streamheaders missing in sink caps!"); - return FALSE; - } -wrong_type: - { - GST_WARNING ("streamheaders are not a GST_TYPE_ARRAY, but a %s", - G_VALUE_TYPE_NAME (streamheader)); - return FALSE; - } -wrong_count: - { - GST_WARNING ("got %u streamheaders, not %d as expected", bufarr->len, N); - return FALSE; - } -wrong_content_type: - { - GST_WARNING ("streamheaders array does not contain GstBuffers"); - return FALSE; - } -} - -static gboolean -vorbis_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context) -{ - GstBuffer *buf0 = NULL; - - if (!xiphN_streamheader_to_codecdata (streamheader, context, &buf0, 3)) - return FALSE; - - if (buf0 == NULL || GST_BUFFER_SIZE (buf0) < 1 + 6 + 4) { - GST_WARNING ("First vorbis header too small, ignoring"); - } else { - if (memcmp (GST_BUFFER_DATA (buf0) + 1, "vorbis", 6) == 0) { - GstMatroskaTrackAudioContext *audiocontext; - guint8 *hdr; - - hdr = GST_BUFFER_DATA (buf0) + 1 + 6 + 4; - audiocontext = (GstMatroskaTrackAudioContext *) context; - audiocontext->channels = GST_READ_UINT8 (hdr); - audiocontext->samplerate = GST_READ_UINT32_LE (hdr + 1); - } - } - - if (buf0) - gst_buffer_unref (buf0); - - return TRUE; -} - -static gboolean -theora_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context) -{ - GstBuffer *buf0 = NULL; - - if (!xiphN_streamheader_to_codecdata (streamheader, context, &buf0, 3)) - return FALSE; - - if (buf0 == NULL || GST_BUFFER_SIZE (buf0) < 1 + 6 + 26) { - GST_WARNING ("First theora header too small, ignoring"); - } else if (memcmp (GST_BUFFER_DATA (buf0), "\200theora\003\002", 9) != 0) { - GST_WARNING ("First header not a theora identification header, ignoring"); - } else { - GstMatroskaTrackVideoContext *videocontext; - guint fps_num, fps_denom, par_num, par_denom; - guint8 *hdr; - - hdr = GST_BUFFER_DATA (buf0) + 1 + 6 + 3 + 2 + 2; - - videocontext = (GstMatroskaTrackVideoContext *) context; - videocontext->pixel_width = GST_READ_UINT32_BE (hdr) >> 8; - videocontext->pixel_height = GST_READ_UINT32_BE (hdr + 3) >> 8; - hdr += 3 + 3 + 1 + 1; - fps_num = GST_READ_UINT32_BE (hdr); - fps_denom = GST_READ_UINT32_BE (hdr + 4); - context->default_duration = gst_util_uint64_scale_int (GST_SECOND, - fps_denom, fps_num); - hdr += 4 + 4; - par_num = GST_READ_UINT32_BE (hdr) >> 8; - par_denom = GST_READ_UINT32_BE (hdr + 3) >> 8; - if (par_num > 0 && par_num > 0) { - if (par_num > par_denom) { - videocontext->display_width = - videocontext->pixel_width * par_num / par_denom; - videocontext->display_height = videocontext->pixel_height; - } else if (par_num < par_denom) { - videocontext->display_width = videocontext->pixel_width; - videocontext->display_height = - videocontext->pixel_height * par_denom / par_num; - } else { - videocontext->display_width = 0; - videocontext->display_height = 0; - } - } else { - videocontext->display_width = 0; - videocontext->display_height = 0; - } - hdr += 3 + 3; - } - - if (buf0) - gst_buffer_unref (buf0); - - return TRUE; -} - -static gboolean -kate_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context) -{ - GstBuffer *buf0 = NULL; - - if (!xiphN_streamheader_to_codecdata (streamheader, context, &buf0, -1)) - return FALSE; - - if (buf0 == NULL || GST_BUFFER_SIZE (buf0) < 64) { /* Kate ID header is 64 bytes */ - GST_WARNING ("First kate header too small, ignoring"); - } else if (memcmp (GST_BUFFER_DATA (buf0), "\200kate\0\0\0", 8) != 0) { - GST_WARNING ("First header not a kate identification header, ignoring"); - } - - if (buf0) - gst_buffer_unref (buf0); - - return TRUE; -} - -static gboolean -flac_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context) -{ - GArray *bufarr; - gint i; - GValue *bufval; - GstBuffer *buffer; - - if (streamheader == NULL || G_VALUE_TYPE (streamheader) != GST_TYPE_ARRAY) { - GST_WARNING ("No or invalid streamheader field in the caps"); - return FALSE; - } - - bufarr = g_value_peek_pointer (streamheader); - if (bufarr->len < 2) { - GST_WARNING ("Too few headers in streamheader field"); - return FALSE; - } - - context->xiph_headers_to_skip = bufarr->len + 1; - - bufval = &g_array_index (bufarr, GValue, 0); - if (G_VALUE_TYPE (bufval) != GST_TYPE_BUFFER) { - GST_WARNING ("streamheaders array does not contain GstBuffers"); - return FALSE; - } - - buffer = g_value_peek_pointer (bufval); - - /* Need at least OggFLAC mapping header, fLaC marker and STREAMINFO block */ - if (GST_BUFFER_SIZE (buffer) < 9 + 4 + 4 + 34 - || memcmp (GST_BUFFER_DATA (buffer) + 1, "FLAC", 4) != 0 - || memcmp (GST_BUFFER_DATA (buffer) + 9, "fLaC", 4) != 0) { - GST_WARNING ("Invalid streamheader for FLAC"); - return FALSE; - } - - context->codec_priv = g_malloc (GST_BUFFER_SIZE (buffer) - 9); - context->codec_priv_size = GST_BUFFER_SIZE (buffer) - 9; - memcpy (context->codec_priv, GST_BUFFER_DATA (buffer) + 9, - GST_BUFFER_SIZE (buffer) - 9); - - for (i = 1; i < bufarr->len; i++) { - bufval = &g_array_index (bufarr, GValue, i); - - if (G_VALUE_TYPE (bufval) != GST_TYPE_BUFFER) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - GST_WARNING ("streamheaders array does not contain GstBuffers"); - return FALSE; - } - - buffer = g_value_peek_pointer (bufval); - - context->codec_priv = - g_realloc (context->codec_priv, - context->codec_priv_size + GST_BUFFER_SIZE (buffer)); - memcpy ((guint8 *) context->codec_priv + context->codec_priv_size, - GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer)); - context->codec_priv_size = - context->codec_priv_size + GST_BUFFER_SIZE (buffer); - } - - return TRUE; -} - -static gboolean -speex_streamheader_to_codecdata (const GValue * streamheader, - GstMatroskaTrackContext * context) -{ - GArray *bufarr; - GValue *bufval; - GstBuffer *buffer; - - if (streamheader == NULL || G_VALUE_TYPE (streamheader) != GST_TYPE_ARRAY) { - GST_WARNING ("No or invalid streamheader field in the caps"); - return FALSE; - } - - bufarr = g_value_peek_pointer (streamheader); - if (bufarr->len != 2) { - GST_WARNING ("Too few headers in streamheader field"); - return FALSE; - } - - context->xiph_headers_to_skip = bufarr->len + 1; - - bufval = &g_array_index (bufarr, GValue, 0); - if (G_VALUE_TYPE (bufval) != GST_TYPE_BUFFER) { - GST_WARNING ("streamheaders array does not contain GstBuffers"); - return FALSE; - } - - buffer = g_value_peek_pointer (bufval); - - if (GST_BUFFER_SIZE (buffer) < 80 - || memcmp (GST_BUFFER_DATA (buffer), "Speex ", 8) != 0) { - GST_WARNING ("Invalid streamheader for Speex"); - return FALSE; - } - - context->codec_priv = g_malloc (GST_BUFFER_SIZE (buffer)); - context->codec_priv_size = GST_BUFFER_SIZE (buffer); - memcpy (context->codec_priv, GST_BUFFER_DATA (buffer), - GST_BUFFER_SIZE (buffer)); - - bufval = &g_array_index (bufarr, GValue, 1); - - if (G_VALUE_TYPE (bufval) != GST_TYPE_BUFFER) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - GST_WARNING ("streamheaders array does not contain GstBuffers"); - return FALSE; - } - - buffer = g_value_peek_pointer (bufval); - - context->codec_priv = - g_realloc (context->codec_priv, - context->codec_priv_size + GST_BUFFER_SIZE (buffer)); - memcpy ((guint8 *) context->codec_priv + context->codec_priv_size, - GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer)); - context->codec_priv_size = - context->codec_priv_size + GST_BUFFER_SIZE (buffer); - - return TRUE; -} - -static const gchar * -aac_codec_data_to_codec_id (const GstBuffer * buf) -{ - const gchar *result; - gint profile; - - /* default to MAIN */ - profile = 1; - - if (GST_BUFFER_SIZE (buf) >= 2) { - profile = GST_READ_UINT8 (GST_BUFFER_DATA (buf)); - profile >>= 3; - } - - switch (profile) { - case 1: - result = "MAIN"; - break; - case 2: - result = "LC"; - break; - case 3: - result = "SSR"; - break; - case 4: - result = "LTP"; - break; - default: - GST_WARNING ("unknown AAC profile, defaulting to MAIN"); - result = "MAIN"; - break; - } - - return result; -} - -/** - * gst_matroska_mux_audio_pad_setcaps: - * @pad: Pad which got the caps. - * @caps: New caps. - * - * Setcaps function for audio sink pad. - * - * Returns: #TRUE on success. - */ -static gboolean -gst_matroska_mux_audio_pad_setcaps (GstPad * pad, GstCaps * caps) -{ - GstMatroskaTrackContext *context = NULL; - GstMatroskaTrackAudioContext *audiocontext; - GstMatroskaMux *mux; - GstMatroskaPad *collect_pad; - const gchar *mimetype; - gint samplerate = 0, channels = 0; - GstStructure *structure; - const GValue *codec_data = NULL; - const GstBuffer *buf = NULL; - const gchar *stream_format = NULL; - - mux = GST_MATROSKA_MUX (GST_PAD_PARENT (pad)); - - /* find context */ - collect_pad = (GstMatroskaPad *) gst_pad_get_element_private (pad); - g_assert (collect_pad); - context = collect_pad->track; - g_assert (context); - g_assert (context->type == GST_MATROSKA_TRACK_TYPE_AUDIO); - audiocontext = (GstMatroskaTrackAudioContext *) context; - - structure = gst_caps_get_structure (caps, 0); - mimetype = gst_structure_get_name (structure); - - /* general setup */ - gst_structure_get_int (structure, "rate", &samplerate); - gst_structure_get_int (structure, "channels", &channels); - - audiocontext->samplerate = samplerate; - audiocontext->channels = channels; - audiocontext->bitdepth = 0; - context->default_duration = 0; - - codec_data = gst_structure_get_value (structure, "codec_data"); - if (codec_data) - buf = gst_value_get_buffer (codec_data); - - /* TODO: - check if we handle all codecs by the spec, i.e. codec private - * data and other settings - * - add new formats - */ - - if (!strcmp (mimetype, "audio/mpeg")) { - gint mpegversion = 0; - - gst_structure_get_int (structure, "mpegversion", &mpegversion); - switch (mpegversion) { - case 1:{ - gint layer; - gint version = 1; - gint spf; - - gst_structure_get_int (structure, "layer", &layer); - - if (!gst_structure_get_int (structure, "mpegaudioversion", &version)) { - GST_WARNING_OBJECT (mux, - "Unable to determine MPEG audio version, assuming 1"); - version = 1; - } - - if (layer == 1) - spf = 384; - else if (layer == 2) - spf = 1152; - else if (version == 2) - spf = 576; - else - spf = 1152; - - context->default_duration = - gst_util_uint64_scale (GST_SECOND, spf, audiocontext->samplerate); - - switch (layer) { - case 1: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1); - break; - case 2: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2); - break; - case 3: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L3); - break; - default: - goto refuse_caps; - } - break; - } - case 2: - case 4: - stream_format = gst_structure_get_string (structure, "stream-format"); - /* check this is raw aac */ - if (stream_format) { - if (strcmp (stream_format, "raw") != 0) { - GST_WARNING_OBJECT (mux, "AAC stream-format must be 'raw', not %s", - stream_format); - } - } else { - GST_WARNING_OBJECT (mux, "AAC stream-format not specified, " - "assuming 'raw'"); - } - - if (buf) { - if (mpegversion == 2) - context->codec_id = - g_strdup_printf (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2 "%s", - aac_codec_data_to_codec_id (buf)); - else if (mpegversion == 4) - context->codec_id = - g_strdup_printf (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4 "%s", - aac_codec_data_to_codec_id (buf)); - else - g_assert_not_reached (); - } else { - GST_DEBUG_OBJECT (mux, "no AAC codec_data; not packetized"); - goto refuse_caps; - } - break; - default: - goto refuse_caps; - } - } else if (!strcmp (mimetype, "audio/x-raw-int")) { - gint width, depth; - gint endianness = G_LITTLE_ENDIAN; - gboolean signedness = TRUE; - - if (!gst_structure_get_int (structure, "width", &width) || - !gst_structure_get_int (structure, "depth", &depth) || - !gst_structure_get_boolean (structure, "signed", &signedness)) { - GST_DEBUG_OBJECT (mux, "broken caps, width/depth/signed field missing"); - goto refuse_caps; - } - - if (depth > 8 && - !gst_structure_get_int (structure, "endianness", &endianness)) { - GST_DEBUG_OBJECT (mux, "broken caps, no endianness specified"); - goto refuse_caps; - } - - if (width != depth) { - GST_DEBUG_OBJECT (mux, "width must be same as depth!"); - goto refuse_caps; - } - - /* FIXME: where is this spec'ed out? (tpm) */ - if ((width == 8 && signedness) || (width >= 16 && !signedness)) { - GST_DEBUG_OBJECT (mux, "8-bit PCM must be unsigned, 16-bit PCM signed"); - goto refuse_caps; - } - - audiocontext->bitdepth = depth; - if (endianness == G_BIG_ENDIAN) - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE); - else - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_LE); - - } else if (!strcmp (mimetype, "audio/x-raw-float")) { - gint width; - - if (!gst_structure_get_int (structure, "width", &width)) { - GST_DEBUG_OBJECT (mux, "broken caps, width field missing"); - goto refuse_caps; - } - - audiocontext->bitdepth = width; - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_PCM_FLOAT); - - } else if (!strcmp (mimetype, "audio/x-vorbis")) { - const GValue *streamheader; - - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_VORBIS); - - if (context->codec_priv != NULL) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - } - - streamheader = gst_structure_get_value (structure, "streamheader"); - if (!vorbis_streamheader_to_codecdata (streamheader, context)) { - GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL), - ("vorbis stream headers missing or malformed")); - goto refuse_caps; - } - } else if (!strcmp (mimetype, "audio/x-flac")) { - const GValue *streamheader; - - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_FLAC); - if (context->codec_priv != NULL) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - } - - streamheader = gst_structure_get_value (structure, "streamheader"); - if (!flac_streamheader_to_codecdata (streamheader, context)) { - GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL), - ("flac stream headers missing or malformed")); - goto refuse_caps; - } - } else if (!strcmp (mimetype, "audio/x-speex")) { - const GValue *streamheader; - - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_SPEEX); - if (context->codec_priv != NULL) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - } - - streamheader = gst_structure_get_value (structure, "streamheader"); - if (!speex_streamheader_to_codecdata (streamheader, context)) { - GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL), - ("speex stream headers missing or malformed")); - goto refuse_caps; - } - } else if (!strcmp (mimetype, "audio/x-ac3")) { - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_AC3); - } else if (!strcmp (mimetype, "audio/x-eac3")) { - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_EAC3); - } else if (!strcmp (mimetype, "audio/x-dts")) { - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_DTS); - } else if (!strcmp (mimetype, "audio/x-tta")) { - gint width; - - /* TTA frame duration */ - context->default_duration = 1.04489795918367346939 * GST_SECOND; - - gst_structure_get_int (structure, "width", &width); - audiocontext->bitdepth = width; - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_TTA); - - } else if (!strcmp (mimetype, "audio/x-pn-realaudio")) { - gint raversion; - const GValue *mdpr_data; - - gst_structure_get_int (structure, "raversion", &raversion); - switch (raversion) { - case 1: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4); - break; - case 2: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_REAL_28_8); - break; - case 8: - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK); - break; - default: - goto refuse_caps; - } - - mdpr_data = gst_structure_get_value (structure, "mdpr_data"); - if (mdpr_data != NULL) { - guint8 *priv_data = NULL; - guint priv_data_size = 0; - - GstBuffer *codec_data_buf = g_value_peek_pointer (mdpr_data); - - priv_data_size = GST_BUFFER_SIZE (codec_data_buf); - priv_data = g_malloc0 (priv_data_size); - - memcpy (priv_data, GST_BUFFER_DATA (codec_data_buf), priv_data_size); - - context->codec_priv = priv_data; - context->codec_priv_size = priv_data_size; - } - - } else if (!strcmp (mimetype, "audio/x-wma") - || !strcmp (mimetype, "audio/x-alaw") - || !strcmp (mimetype, "audio/x-mulaw")) { - guint8 *codec_priv; - guint codec_priv_size; - guint16 format = 0; - gint block_align; - gint bitrate; - - if (samplerate == 0 || channels == 0) { - GST_WARNING_OBJECT (mux, "Missing channels/samplerate on caps"); - goto refuse_caps; - } - - if (!strcmp (mimetype, "audio/x-wma")) { - gint wmaversion; - gint depth; - - if (!gst_structure_get_int (structure, "wmaversion", &wmaversion) - || !gst_structure_get_int (structure, "block_align", &block_align) - || !gst_structure_get_int (structure, "bitrate", &bitrate)) { - GST_WARNING_OBJECT (mux, "Missing wmaversion/block_align/bitrate" - " on WMA caps"); - goto refuse_caps; - } - - switch (wmaversion) { - case 1: - format = GST_RIFF_WAVE_FORMAT_WMAV1; - break; - case 2: - format = GST_RIFF_WAVE_FORMAT_WMAV2; - break; - case 3: - format = GST_RIFF_WAVE_FORMAT_WMAV3; - break; - default: - GST_WARNING_OBJECT (mux, "Unexpected WMA version: %d", wmaversion); - goto refuse_caps; - } - - if (gst_structure_get_int (structure, "depth", &depth)) - audiocontext->bitdepth = depth; - } else if (!strcmp (mimetype, "audio/x-alaw") - || !strcmp (mimetype, "audio/x-mulaw")) { - audiocontext->bitdepth = 8; - if (!strcmp (mimetype, "audio/x-alaw")) - format = GST_RIFF_WAVE_FORMAT_ALAW; - else - format = GST_RIFF_WAVE_FORMAT_MULAW; - - block_align = channels; - bitrate = block_align * samplerate; - } - g_assert (format != 0); - - codec_priv_size = WAVEFORMATEX_SIZE; - if (buf) - codec_priv_size += GST_BUFFER_SIZE (buf); - - /* serialize waveformatex structure */ - codec_priv = g_malloc0 (codec_priv_size); - GST_WRITE_UINT16_LE (codec_priv, format); - GST_WRITE_UINT16_LE (codec_priv + 2, channels); - GST_WRITE_UINT32_LE (codec_priv + 4, samplerate); - GST_WRITE_UINT32_LE (codec_priv + 8, bitrate / 8); - GST_WRITE_UINT16_LE (codec_priv + 12, block_align); - GST_WRITE_UINT16_LE (codec_priv + 14, 0); - if (buf) - GST_WRITE_UINT16_LE (codec_priv + 16, GST_BUFFER_SIZE (buf)); - else - GST_WRITE_UINT16_LE (codec_priv + 16, 0); - - /* process codec private/initialization data, if any */ - if (buf) { - memcpy ((guint8 *) codec_priv + WAVEFORMATEX_SIZE, - GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf)); - } - - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_ACM); - context->codec_priv = (gpointer) codec_priv; - context->codec_priv_size = codec_priv_size; - } - - return TRUE; - - /* ERRORS */ -refuse_caps: - { - GST_WARNING_OBJECT (mux, "pad %s refused caps %" GST_PTR_FORMAT, - GST_PAD_NAME (pad), caps); - return FALSE; - } -} - - -/** - * gst_matroska_mux_subtitle_pad_setcaps: - * @pad: Pad which got the caps. - * @caps: New caps. - * - * Setcaps function for subtitle sink pad. - * - * Returns: #TRUE on success. - */ -static gboolean -gst_matroska_mux_subtitle_pad_setcaps (GstPad * pad, GstCaps * caps) -{ - /* FIXME: - * Consider this as boilerplate code for now. There is - * no single subtitle creation element in GStreamer, - * neither do I know how subtitling works at all. */ - - /* There is now (at least) one such alement (kateenc), and I'm going - to handle it here and claim it works when it can be piped back - through GStreamer and VLC */ - - GstMatroskaTrackContext *context = NULL; - GstMatroskaTrackSubtitleContext *scontext; - GstMatroskaMux *mux; - GstMatroskaPad *collect_pad; - const gchar *mimetype; - GstStructure *structure; - - mux = GST_MATROSKA_MUX (GST_PAD_PARENT (pad)); - - /* find context */ - collect_pad = (GstMatroskaPad *) gst_pad_get_element_private (pad); - g_assert (collect_pad); - context = collect_pad->track; - g_assert (context); - g_assert (context->type == GST_MATROSKA_TRACK_TYPE_SUBTITLE); - scontext = (GstMatroskaTrackSubtitleContext *) context; - - structure = gst_caps_get_structure (caps, 0); - mimetype = gst_structure_get_name (structure); - - /* general setup */ - scontext->check_utf8 = 1; - scontext->invalid_utf8 = 0; - context->default_duration = 0; - - /* TODO: - other format than Kate */ - - if (!strcmp (mimetype, "subtitle/x-kate")) { - const GValue *streamheader; - - context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_SUBTITLE_KATE); - - if (context->codec_priv != NULL) { - g_free (context->codec_priv); - context->codec_priv = NULL; - context->codec_priv_size = 0; - } - - streamheader = gst_structure_get_value (structure, "streamheader"); - if (!kate_streamheader_to_codecdata (streamheader, context)) { - GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL), - ("kate stream headers missing or malformed")); - return FALSE; - } - return TRUE; - } - - return FALSE; -} - - -/** - * gst_matroska_mux_request_new_pad: - * @element: #GstMatroskaMux. - * @templ: #GstPadTemplate. - * @pad_name: New pad name. - * - * Request pad function for sink templates. - * - * Returns: New #GstPad. - */ -static GstPad * -gst_matroska_mux_request_new_pad (GstElement * element, - GstPadTemplate * templ, const gchar * req_name) -{ - GstElementClass *klass = GST_ELEMENT_GET_CLASS (element); - GstMatroskaMux *mux = GST_MATROSKA_MUX (element); - GstMatroskaPad *collect_pad; - GstMatroskamuxPad *newpad; - gchar *name = NULL; - const gchar *pad_name = NULL; - GstPadSetCapsFunction setcapsfunc = NULL; - GstMatroskaTrackContext *context = NULL; - gint pad_id; - - if (templ == gst_element_class_get_pad_template (klass, "audio_%d")) { - /* don't mix named and unnamed pads, if the pad already exists we fail when - * trying to add it */ - if (req_name != NULL && sscanf (req_name, "audio_%d", &pad_id) == 1) { - pad_name = req_name; - } else { - name = g_strdup_printf ("audio_%d", mux->num_a_streams++); - pad_name = name; - } - setcapsfunc = GST_DEBUG_FUNCPTR (gst_matroska_mux_audio_pad_setcaps); - context = (GstMatroskaTrackContext *) - g_new0 (GstMatroskaTrackAudioContext, 1); - context->type = GST_MATROSKA_TRACK_TYPE_AUDIO; - context->name = g_strdup ("Audio"); - } else if (templ == gst_element_class_get_pad_template (klass, "video_%d")) { - /* don't mix named and unnamed pads, if the pad already exists we fail when - * trying to add it */ - if (req_name != NULL && sscanf (req_name, "video_%d", &pad_id) == 1) { - pad_name = req_name; - } else { - name = g_strdup_printf ("video_%d", mux->num_v_streams++); - pad_name = name; - } - setcapsfunc = GST_DEBUG_FUNCPTR (gst_matroska_mux_video_pad_setcaps); - context = (GstMatroskaTrackContext *) - g_new0 (GstMatroskaTrackVideoContext, 1); - context->type = GST_MATROSKA_TRACK_TYPE_VIDEO; - context->name = g_strdup ("Video"); - } else if (templ == gst_element_class_get_pad_template (klass, "subtitle_%d")) { - /* don't mix named and unnamed pads, if the pad already exists we fail when - * trying to add it */ - if (req_name != NULL && sscanf (req_name, "subtitle_%d", &pad_id) == 1) { - pad_name = req_name; - } else { - name = g_strdup_printf ("subtitle_%d", mux->num_t_streams++); - pad_name = name; - } - setcapsfunc = GST_DEBUG_FUNCPTR (gst_matroska_mux_subtitle_pad_setcaps); - context = (GstMatroskaTrackContext *) - g_new0 (GstMatroskaTrackSubtitleContext, 1); - context->type = GST_MATROSKA_TRACK_TYPE_SUBTITLE; - context->name = g_strdup ("Subtitle"); - } else { - GST_WARNING_OBJECT (mux, "This is not our template!"); - return NULL; - } - - newpad = g_object_new (GST_TYPE_MATROSKAMUX_PAD, - "name", pad_name, "direction", templ->direction, "template", templ, NULL); - g_free (name); - - gst_matroskamux_pad_init (newpad); - collect_pad = (GstMatroskaPad *) - gst_collect_pads_add_pad_full (mux->collect, GST_PAD (newpad), - sizeof (GstMatroskamuxPad), - (GstCollectDataDestroyNotify) gst_matroska_pad_free); - - collect_pad->track = context; - gst_matroska_pad_reset (collect_pad, FALSE); - - /* FIXME: hacked way to override/extend the event function of - * GstCollectPads; because it sets its own event function giving the - * element no access to events. - * TODO GstCollectPads should really give its 'users' a clean chance to - * properly handle events that are not meant for collectpads itself. - * Perhaps a callback or so, though rejected (?) in #340060. - * This would allow (clean) transcoding of info from demuxer/streams - * to another muxer */ - mux->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (newpad); - gst_pad_set_event_function (GST_PAD (newpad), - GST_DEBUG_FUNCPTR (gst_matroska_mux_handle_sink_event)); - - gst_pad_set_setcaps_function (GST_PAD (newpad), setcapsfunc); - gst_pad_set_active (GST_PAD (newpad), TRUE); - if (!gst_element_add_pad (element, GST_PAD (newpad))) - goto pad_add_failed; - - mux->num_streams++; - - GST_DEBUG_OBJECT (newpad, "Added new request pad"); - - return GST_PAD (newpad); - - /* ERROR cases */ -pad_add_failed: - { - GST_WARNING_OBJECT (mux, "Adding the new pad '%s' failed", pad_name); - gst_object_unref (newpad); - return NULL; - } -} - -/** - * gst_matroska_mux_release_pad: - * @element: #GstMatroskaMux. - * @pad: Pad to release. - * - * Release a previously requested pad. -*/ -static void -gst_matroska_mux_release_pad (GstElement * element, GstPad * pad) -{ - GstMatroskaMux *mux; - GSList *walk; - - mux = GST_MATROSKA_MUX (GST_PAD_PARENT (pad)); - - for (walk = mux->collect->data; walk; walk = g_slist_next (walk)) { - GstCollectData *cdata = (GstCollectData *) walk->data; - GstMatroskaPad *collect_pad = (GstMatroskaPad *) cdata; - - if (cdata->pad == pad) { - GstClockTime min_dur; /* observed minimum duration */ - - if (GST_CLOCK_TIME_IS_VALID (collect_pad->start_ts) && - GST_CLOCK_TIME_IS_VALID (collect_pad->end_ts)) { - min_dur = GST_CLOCK_DIFF (collect_pad->start_ts, collect_pad->end_ts); - if (collect_pad->duration < min_dur) - collect_pad->duration = min_dur; - } - - if (GST_CLOCK_TIME_IS_VALID (collect_pad->duration) && - mux->duration < collect_pad->duration) - mux->duration = collect_pad->duration; - - break; - } - } - - gst_collect_pads_remove_pad (mux->collect, pad); - if (gst_element_remove_pad (element, pad)) - mux->num_streams--; -} - - -/** - * gst_matroska_mux_track_header: - * @mux: #GstMatroskaMux - * @context: Tack context. - * - * Write a track header. - */ -static void -gst_matroska_mux_track_header (GstMatroskaMux * mux, - GstMatroskaTrackContext * context) -{ - GstEbmlWrite *ebml = mux->ebml_write; - guint64 master; - - /* TODO: check if everything necessary is written and check default values */ - - /* track type goes before the type-specific stuff */ - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_TRACKNUMBER, context->num); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_TRACKTYPE, context->type); - - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_TRACKUID, - gst_matroska_mux_create_uid ()); - if (context->default_duration) { - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_TRACKDEFAULTDURATION, - context->default_duration); - } - if (context->language) { - gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_TRACKLANGUAGE, - context->language); - } - - /* type-specific stuff */ - switch (context->type) { - case GST_MATROSKA_TRACK_TYPE_VIDEO:{ - GstMatroskaTrackVideoContext *videocontext = - (GstMatroskaTrackVideoContext *) context; - - master = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TRACKVIDEO); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_VIDEOPIXELWIDTH, - videocontext->pixel_width); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_VIDEOPIXELHEIGHT, - videocontext->pixel_height); - if (videocontext->display_width && videocontext->display_height) { - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_VIDEODISPLAYWIDTH, - videocontext->display_width); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_VIDEODISPLAYHEIGHT, - videocontext->display_height); - } - if (context->flags & GST_MATROSKA_VIDEOTRACK_INTERLACED) - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_VIDEOFLAGINTERLACED, 1); - if (videocontext->fourcc) { - guint32 fcc_le = GUINT32_TO_LE (videocontext->fourcc); - - gst_ebml_write_binary (ebml, GST_MATROSKA_ID_VIDEOCOLOURSPACE, - (gpointer) & fcc_le, 4); - } - gst_ebml_write_master_finish (ebml, master); - - break; - } - - case GST_MATROSKA_TRACK_TYPE_AUDIO:{ - GstMatroskaTrackAudioContext *audiocontext = - (GstMatroskaTrackAudioContext *) context; - - master = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TRACKAUDIO); - if (audiocontext->samplerate != 8000) - gst_ebml_write_float (ebml, GST_MATROSKA_ID_AUDIOSAMPLINGFREQ, - audiocontext->samplerate); - if (audiocontext->channels != 1) - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_AUDIOCHANNELS, - audiocontext->channels); - if (audiocontext->bitdepth) { - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_AUDIOBITDEPTH, - audiocontext->bitdepth); - } - gst_ebml_write_master_finish (ebml, master); - - break; - } - - default: - /* doesn't need type-specific data */ - break; - } - - gst_ebml_write_ascii (ebml, GST_MATROSKA_ID_CODECID, context->codec_id); - if (context->codec_priv) - gst_ebml_write_binary (ebml, GST_MATROSKA_ID_CODECPRIVATE, - context->codec_priv, context->codec_priv_size); - /* FIXME: until we have a nice way of getting the codecname - * out of the caps, I'm not going to enable this. Too much - * (useless, double, boring) work... */ - /* TODO: Use value from tags if any */ - /*gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_CODECNAME, - context->codec_name); */ - gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_TRACKNAME, context->name); -} - - -/** - * gst_matroska_mux_start: - * @mux: #GstMatroskaMux - * - * Start a new matroska file (write headers etc...) - */ -static void -gst_matroska_mux_start (GstMatroskaMux * mux) -{ - GstEbmlWrite *ebml = mux->ebml_write; - const gchar *doctype; - guint32 seekhead_id[] = { GST_MATROSKA_ID_SEGMENTINFO, - GST_MATROSKA_ID_TRACKS, - GST_MATROSKA_ID_CUES, - GST_MATROSKA_ID_TAGS, - 0 - }; - guint64 master, child; - GSList *collected; - int i; - guint tracknum = 1; - GstClockTime duration = 0; - guint32 segment_uid[4]; - GTimeVal time = { 0, 0 }; - - if (!strcmp (mux->doctype, GST_MATROSKA_DOCTYPE_WEBM)) { - ebml->caps = gst_caps_new_simple ("video/webm", NULL); - } else { - ebml->caps = gst_caps_new_simple ("video/x-matroska", NULL); - } - /* we start with a EBML header */ - doctype = mux->doctype; - GST_INFO_OBJECT (ebml, "DocType: %s, Version: %d", - doctype, mux->doctype_version); - gst_ebml_write_header (ebml, doctype, mux->doctype_version); - - /* the rest of the header is cached */ - gst_ebml_write_set_cache (ebml, 0x1000); - - /* start a segment */ - mux->segment_pos = - gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_SEGMENT); - mux->segment_master = ebml->pos; - - if (!mux->streamable) { - /* seekhead (table of contents) - we set the positions later */ - mux->seekhead_pos = ebml->pos; - master = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_SEEKHEAD); - for (i = 0; seekhead_id[i] != 0; i++) { - child = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_SEEKENTRY); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_SEEKID, seekhead_id[i]); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_SEEKPOSITION, -1); - gst_ebml_write_master_finish (ebml, child); - } - gst_ebml_write_master_finish (ebml, master); - } - - if (mux->streamable) { - const GstTagList *tags; - - /* tags */ - tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (mux)); - - if (tags != NULL && !gst_tag_list_is_empty (tags)) { - guint64 master_tags, master_tag; - - GST_DEBUG ("Writing tags"); - - /* TODO: maybe limit via the TARGETS id by looking at the source pad */ - mux->tags_pos = ebml->pos; - master_tags = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TAGS); - master_tag = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TAG); - gst_tag_list_foreach (tags, gst_matroska_mux_write_simple_tag, ebml); - gst_ebml_write_master_finish (ebml, master_tag); - gst_ebml_write_master_finish (ebml, master_tags); - } - } - - /* segment info */ - mux->info_pos = ebml->pos; - master = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_SEGMENTINFO); - for (i = 0; i < 4; i++) { - segment_uid[i] = g_random_int (); - } - gst_ebml_write_binary (ebml, GST_MATROSKA_ID_SEGMENTUID, - (guint8 *) segment_uid, 16); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_TIMECODESCALE, mux->time_scale); - mux->duration_pos = ebml->pos; - /* get duration */ - if (!mux->streamable) { - for (collected = mux->collect->data; collected; - collected = g_slist_next (collected)) { - GstMatroskaPad *collect_pad; - GstFormat format = GST_FORMAT_TIME; - GstPad *thepad; - gint64 trackduration; - - collect_pad = (GstMatroskaPad *) collected->data; - thepad = collect_pad->collect.pad; - - /* Query the total length of the track. */ - GST_DEBUG_OBJECT (thepad, "querying peer duration"); - if (gst_pad_query_peer_duration (thepad, &format, &trackduration)) { - GST_DEBUG_OBJECT (thepad, "duration: %" GST_TIME_FORMAT, - GST_TIME_ARGS (trackduration)); - if (trackduration != GST_CLOCK_TIME_NONE && trackduration > duration) { - duration = (GstClockTime) trackduration; - } - } - } - gst_ebml_write_float (ebml, GST_MATROSKA_ID_DURATION, - gst_guint64_to_gdouble (duration) / - gst_guint64_to_gdouble (mux->time_scale)); - } - gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_MUXINGAPP, - "GStreamer plugin version " PACKAGE_VERSION); - if (mux->writing_app && mux->writing_app[0]) { - gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_WRITINGAPP, mux->writing_app); - } - g_get_current_time (&time); - gst_ebml_write_date (ebml, GST_MATROSKA_ID_DATEUTC, time.tv_sec); - gst_ebml_write_master_finish (ebml, master); - - /* tracks */ - mux->tracks_pos = ebml->pos; - master = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TRACKS); - - for (collected = mux->collect->data; collected; - collected = g_slist_next (collected)) { - GstMatroskaPad *collect_pad; - GstPad *thepad; - - collect_pad = (GstMatroskaPad *) collected->data; - thepad = collect_pad->collect.pad; - - if (gst_pad_is_linked (thepad) && gst_pad_is_active (thepad) && - collect_pad->track->codec_id != 0) { - collect_pad->track->num = tracknum++; - child = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TRACKENTRY); - gst_matroska_mux_track_header (mux, collect_pad->track); - gst_ebml_write_master_finish (ebml, child); - /* some remaing pad/track setup */ - collect_pad->default_duration_scaled = - gst_util_uint64_scale (collect_pad->track->default_duration, - 1, mux->time_scale); - } - } - gst_ebml_write_master_finish (ebml, master); - - /* lastly, flush the cache */ - gst_ebml_write_flush_cache (ebml, FALSE, 0); -} - -static void -gst_matroska_mux_write_simple_tag (const GstTagList * list, const gchar * tag, - gpointer data) -{ - /* TODO: more sensible tag mappings */ - static const struct - { - const gchar *matroska_tagname; - const gchar *gstreamer_tagname; - } - tag_conv[] = { - { - GST_MATROSKA_TAG_ID_TITLE, GST_TAG_TITLE}, { - GST_MATROSKA_TAG_ID_ARTIST, GST_TAG_ARTIST}, { - GST_MATROSKA_TAG_ID_ALBUM, GST_TAG_ALBUM}, { - GST_MATROSKA_TAG_ID_COMMENTS, GST_TAG_COMMENT}, { - GST_MATROSKA_TAG_ID_BITSPS, GST_TAG_BITRATE}, { - GST_MATROSKA_TAG_ID_BPS, GST_TAG_BITRATE}, { - GST_MATROSKA_TAG_ID_ENCODER, GST_TAG_ENCODER}, { - GST_MATROSKA_TAG_ID_DATE, GST_TAG_DATE}, { - GST_MATROSKA_TAG_ID_ISRC, GST_TAG_ISRC}, { - GST_MATROSKA_TAG_ID_COPYRIGHT, GST_TAG_COPYRIGHT}, { - GST_MATROSKA_TAG_ID_BPM, GST_TAG_BEATS_PER_MINUTE}, { - GST_MATROSKA_TAG_ID_TERMS_OF_USE, GST_TAG_LICENSE}, { - GST_MATROSKA_TAG_ID_COMPOSER, GST_TAG_COMPOSER}, { - GST_MATROSKA_TAG_ID_LEAD_PERFORMER, GST_TAG_PERFORMER}, { - GST_MATROSKA_TAG_ID_GENRE, GST_TAG_GENRE} - }; - GstEbmlWrite *ebml = (GstEbmlWrite *) data; - guint i; - guint64 simpletag_master; - - for (i = 0; i < G_N_ELEMENTS (tag_conv); i++) { - const gchar *tagname_gst = tag_conv[i].gstreamer_tagname; - const gchar *tagname_mkv = tag_conv[i].matroska_tagname; - - if (strcmp (tagname_gst, tag) == 0) { - GValue src = { 0, }; - gchar *dest; - - if (!gst_tag_list_copy_value (&src, list, tag)) - break; - if ((dest = gst_value_serialize (&src))) { - - simpletag_master = gst_ebml_write_master_start (ebml, - GST_MATROSKA_ID_SIMPLETAG); - gst_ebml_write_ascii (ebml, GST_MATROSKA_ID_TAGNAME, tagname_mkv); - gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_TAGSTRING, dest); - gst_ebml_write_master_finish (ebml, simpletag_master); - g_free (dest); - } else { - GST_WARNING ("Can't transform tag '%s' to string", tagname_mkv); - } - g_value_unset (&src); - break; - } - } -} - - -/** - * gst_matroska_mux_finish: - * @mux: #GstMatroskaMux - * - * Finish a new matroska file (write index etc...) - */ -static void -gst_matroska_mux_finish (GstMatroskaMux * mux) -{ - GstEbmlWrite *ebml = mux->ebml_write; - guint64 pos; - guint64 duration = 0; - GSList *collected; - const GstTagList *tags; - - /* finish last cluster */ - if (mux->cluster) { - gst_ebml_write_master_finish (ebml, mux->cluster); - } - - /* cues */ - if (mux->index != NULL) { - guint n; - guint64 master, pointentry_master, trackpos_master; - - mux->cues_pos = ebml->pos; - gst_ebml_write_set_cache (ebml, 12 + 41 * mux->num_indexes); - master = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_CUES); - - for (n = 0; n < mux->num_indexes; n++) { - GstMatroskaIndex *idx = &mux->index[n]; - - pointentry_master = gst_ebml_write_master_start (ebml, - GST_MATROSKA_ID_POINTENTRY); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_CUETIME, - idx->time / mux->time_scale); - trackpos_master = gst_ebml_write_master_start (ebml, - GST_MATROSKA_ID_CUETRACKPOSITIONS); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_CUETRACK, idx->track); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_CUECLUSTERPOSITION, - idx->pos - mux->segment_master); - gst_ebml_write_master_finish (ebml, trackpos_master); - gst_ebml_write_master_finish (ebml, pointentry_master); - } - - gst_ebml_write_master_finish (ebml, master); - gst_ebml_write_flush_cache (ebml, FALSE, GST_CLOCK_TIME_NONE); - } - - /* tags */ - tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (mux)); - - if (tags != NULL && !gst_tag_list_is_empty (tags)) { - guint64 master_tags, master_tag; - - GST_DEBUG ("Writing tags"); - - /* TODO: maybe limit via the TARGETS id by looking at the source pad */ - mux->tags_pos = ebml->pos; - master_tags = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TAGS); - master_tag = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_TAG); - gst_tag_list_foreach (tags, gst_matroska_mux_write_simple_tag, ebml); - gst_ebml_write_master_finish (ebml, master_tag); - gst_ebml_write_master_finish (ebml, master_tags); - } - - /* update seekhead. We know that: - * - a seekhead contains 4 entries. - * - order of entries is as above. - * - a seekhead has a 4-byte header + 8-byte length - * - each entry is 2-byte master, 2-byte ID pointer, - * 2-byte length pointer, all 8/1-byte length, 4- - * byte ID and 8-byte length pointer, where the - * length pointer starts at 20. - * - all entries are local to the segment (so pos - segment_master). - * - so each entry is at 12 + 20 + num * 28. */ - gst_ebml_replace_uint (ebml, mux->seekhead_pos + 32, - mux->info_pos - mux->segment_master); - gst_ebml_replace_uint (ebml, mux->seekhead_pos + 60, - mux->tracks_pos - mux->segment_master); - if (mux->index != NULL) { - gst_ebml_replace_uint (ebml, mux->seekhead_pos + 88, - mux->cues_pos - mux->segment_master); - } else { - /* void'ify */ - guint64 my_pos = ebml->pos; - - gst_ebml_write_seek (ebml, mux->seekhead_pos + 68); - gst_ebml_write_buffer_header (ebml, GST_EBML_ID_VOID, 26); - gst_ebml_write_seek (ebml, my_pos); - } - if (tags != NULL) { - gst_ebml_replace_uint (ebml, mux->seekhead_pos + 116, - mux->tags_pos - mux->segment_master); - } else { - /* void'ify */ - guint64 my_pos = ebml->pos; - - gst_ebml_write_seek (ebml, mux->seekhead_pos + 96); - gst_ebml_write_buffer_header (ebml, GST_EBML_ID_VOID, 26); - gst_ebml_write_seek (ebml, my_pos); - } - - /* update duration */ - /* first get the overall duration */ - /* a released track may have left a duration in here */ - duration = mux->duration; - for (collected = mux->collect->data; collected; - collected = g_slist_next (collected)) { - GstMatroskaPad *collect_pad; - GstClockTime min_duration; /* observed minimum duration */ - - collect_pad = (GstMatroskaPad *) collected->data; - - GST_DEBUG_OBJECT (mux, - "Pad %" GST_PTR_FORMAT " start ts %" GST_TIME_FORMAT - " end ts %" GST_TIME_FORMAT, collect_pad, - GST_TIME_ARGS (collect_pad->start_ts), - GST_TIME_ARGS (collect_pad->end_ts)); - - if (GST_CLOCK_TIME_IS_VALID (collect_pad->start_ts) && - GST_CLOCK_TIME_IS_VALID (collect_pad->end_ts)) { - min_duration = - GST_CLOCK_DIFF (collect_pad->start_ts, collect_pad->end_ts); - if (collect_pad->duration < min_duration) - collect_pad->duration = min_duration; - GST_DEBUG_OBJECT (collect_pad, - "final track duration: %" GST_TIME_FORMAT, - GST_TIME_ARGS (collect_pad->duration)); - } - - if (GST_CLOCK_TIME_IS_VALID (collect_pad->duration) && - duration < collect_pad->duration) - duration = collect_pad->duration; - } - if (duration != 0) { - GST_DEBUG_OBJECT (mux, "final total duration: %" GST_TIME_FORMAT, - GST_TIME_ARGS (duration)); - pos = mux->ebml_write->pos; - gst_ebml_write_seek (ebml, mux->duration_pos); - gst_ebml_write_float (ebml, GST_MATROSKA_ID_DURATION, - gst_guint64_to_gdouble (duration) / - gst_guint64_to_gdouble (mux->time_scale)); - gst_ebml_write_seek (ebml, pos); - } else { - /* void'ify */ - guint64 my_pos = ebml->pos; - - gst_ebml_write_seek (ebml, mux->duration_pos); - gst_ebml_write_buffer_header (ebml, GST_EBML_ID_VOID, 8); - gst_ebml_write_seek (ebml, my_pos); - } - GST_DEBUG_OBJECT (mux, "finishing segment"); - /* finish segment - this also writes element length */ - gst_ebml_write_master_finish (ebml, mux->segment_pos); -} - - -/** - * gst_matroska_mux_best_pad: - * @mux: #GstMatroskaMux - * @popped: True if at least one buffer was popped from #GstCollectPads - * - * Find a pad with the oldest data - * (data from this pad should be written first). - * - * Returns: Selected pad. - */ -static GstMatroskaPad * -gst_matroska_mux_best_pad (GstMatroskaMux * mux, gboolean * popped) -{ - GSList *collected; - GstMatroskaPad *best = NULL; - - *popped = FALSE; - for (collected = mux->collect->data; collected; - collected = g_slist_next (collected)) { - GstMatroskaPad *collect_pad; - - collect_pad = (GstMatroskaPad *) collected->data; - /* fetch a new buffer if needed */ - if (collect_pad->buffer == NULL) { - collect_pad->buffer = gst_collect_pads_pop (mux->collect, - (GstCollectData *) collect_pad); - - if (collect_pad->buffer != NULL) { - GstClockTime time; - - *popped = TRUE; - /* convert to running time */ - time = GST_BUFFER_TIMESTAMP (collect_pad->buffer); - /* invalid should pass */ - if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (time))) { - time = gst_segment_to_running_time (&collect_pad->collect.segment, - GST_FORMAT_TIME, time); - if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (time))) { - GST_DEBUG_OBJECT (mux, "clipping buffer on pad %s outside segment", - GST_PAD_NAME (collect_pad->collect.pad)); - gst_buffer_unref (collect_pad->buffer); - collect_pad->buffer = NULL; - return NULL; - } else { - GST_LOG_OBJECT (mux, "buffer ts %" GST_TIME_FORMAT " -> %" - GST_TIME_FORMAT " running time", - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (collect_pad->buffer)), - GST_TIME_ARGS (time)); - collect_pad->buffer = - gst_buffer_make_metadata_writable (collect_pad->buffer); - GST_BUFFER_TIMESTAMP (collect_pad->buffer) = time; - } - } - } - } - - /* if we have a buffer check if it is better then the current best one */ - if (collect_pad->buffer != NULL) { - if (best == NULL || !GST_BUFFER_TIMESTAMP_IS_VALID (collect_pad->buffer) - || (GST_BUFFER_TIMESTAMP_IS_VALID (best->buffer) - && GST_BUFFER_TIMESTAMP (collect_pad->buffer) < - GST_BUFFER_TIMESTAMP (best->buffer))) { - best = collect_pad; - } - } - } - - return best; -} - -/** - * gst_matroska_mux_buffer_header: - * @track: Track context. - * @relative_timestamp: relative timestamp of the buffer - * @flags: Buffer flags. - * - * Create a buffer containing buffer header. - * - * Returns: New buffer. - */ -static GstBuffer * -gst_matroska_mux_create_buffer_header (GstMatroskaTrackContext * track, - gint16 relative_timestamp, int flags) -{ - GstBuffer *hdr; - - hdr = gst_buffer_new_and_alloc (4); - /* track num - FIXME: what if num >= 0x80 (unlikely)? */ - GST_BUFFER_DATA (hdr)[0] = track->num | 0x80; - /* time relative to clustertime */ - GST_WRITE_UINT16_BE (GST_BUFFER_DATA (hdr) + 1, relative_timestamp); - - /* flags */ - GST_BUFFER_DATA (hdr)[3] = flags; - - return hdr; -} - -#define DIRAC_PARSE_CODE_SEQUENCE_HEADER 0x00 -#define DIRAC_PARSE_CODE_END_OF_SEQUENCE 0x10 -#define DIRAC_PARSE_CODE_IS_PICTURE(x) ((x & 0x08) != 0) - -static GstBuffer * -gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux, - GstMatroskaPad * collect_pad, GstBuffer * buf) -{ - GstMatroskaTrackVideoContext *ctx = - (GstMatroskaTrackVideoContext *) collect_pad->track; - const guint8 *data = GST_BUFFER_DATA (buf); - guint size = GST_BUFFER_SIZE (buf); - guint8 parse_code; - guint32 next_parse_offset; - GstBuffer *ret = NULL; - gboolean is_muxing_unit = FALSE; - - if (GST_BUFFER_SIZE (buf) < 13) { - gst_buffer_unref (buf); - return ret; - } - - /* Check if this buffer contains a picture or end-of-sequence packet */ - while (size >= 13) { - if (GST_READ_UINT32_BE (data) != 0x42424344 /* 'BBCD' */ ) { - gst_buffer_unref (buf); - return ret; - } - - parse_code = GST_READ_UINT8 (data + 4); - if (parse_code == DIRAC_PARSE_CODE_SEQUENCE_HEADER) { - if (ctx->dirac_unit) { - gst_buffer_unref (ctx->dirac_unit); - ctx->dirac_unit = NULL; - } - } else if (DIRAC_PARSE_CODE_IS_PICTURE (parse_code) || - parse_code == DIRAC_PARSE_CODE_END_OF_SEQUENCE) { - is_muxing_unit = TRUE; - break; - } - - next_parse_offset = GST_READ_UINT32_BE (data + 5); - - if (G_UNLIKELY (next_parse_offset == 0 || next_parse_offset > size)) - break; - - data += next_parse_offset; - size -= next_parse_offset; - } - - if (ctx->dirac_unit) - ctx->dirac_unit = gst_buffer_join (ctx->dirac_unit, gst_buffer_ref (buf)); - else - ctx->dirac_unit = gst_buffer_ref (buf); - - if (is_muxing_unit) { - ret = gst_buffer_make_metadata_writable (ctx->dirac_unit); - ctx->dirac_unit = NULL; - gst_buffer_copy_metadata (ret, buf, - GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS | - GST_BUFFER_COPY_CAPS); - gst_buffer_unref (buf); - } else { - gst_buffer_unref (buf); - ret = NULL; - } - - return ret; -} - -static void -gst_matroska_mux_stop_streamheader (GstMatroskaMux * mux) -{ - GstCaps *caps; - GstStructure *s; - GValue streamheader = { 0 }; - GValue bufval = { 0 }; - GstBuffer *streamheader_buffer; - GstEbmlWrite *ebml = mux->ebml_write; - - streamheader_buffer = gst_ebml_stop_streamheader (ebml); - if (!strcmp (mux->doctype, GST_MATROSKA_DOCTYPE_WEBM)) { - caps = gst_caps_new_simple ("video/webm", NULL); - } else { - caps = gst_caps_new_simple ("video/x-matroska", NULL); - } - s = gst_caps_get_structure (caps, 0); - g_value_init (&streamheader, GST_TYPE_ARRAY); - g_value_init (&bufval, GST_TYPE_BUFFER); - GST_BUFFER_FLAG_SET (streamheader_buffer, GST_BUFFER_FLAG_IN_CAPS); - gst_value_set_buffer (&bufval, streamheader_buffer); - gst_value_array_append_value (&streamheader, &bufval); - g_value_unset (&bufval); - gst_structure_set_value (s, "streamheader", &streamheader); - g_value_unset (&streamheader); - gst_caps_replace (&ebml->caps, caps); - gst_buffer_unref (streamheader_buffer); - gst_caps_unref (caps); -} - -/** - * gst_matroska_mux_write_data: - * @mux: #GstMatroskaMux - * @collect_pad: #GstMatroskaPad with the data - * - * Write collected data (called from gst_matroska_mux_collected). - * - * Returns: Result of the gst_pad_push issued to write the data. - */ -static GstFlowReturn -gst_matroska_mux_write_data (GstMatroskaMux * mux, GstMatroskaPad * collect_pad) -{ - GstEbmlWrite *ebml = mux->ebml_write; - GstBuffer *buf, *hdr; - guint64 blockgroup; - gboolean write_duration; - gint16 relative_timestamp; - gint64 relative_timestamp64; - guint64 block_duration; - gboolean is_video_keyframe = FALSE; - GstMatroskamuxPad *pad; - - /* write data */ - buf = collect_pad->buffer; - collect_pad->buffer = NULL; - pad = GST_MATROSKAMUX_PAD_CAST (collect_pad->collect.pad); - - /* vorbis/theora headers are retrieved from caps and put in CodecPrivate */ - if (collect_pad->track->xiph_headers_to_skip > 0) { - GST_LOG_OBJECT (collect_pad->collect.pad, "dropping streamheader buffer"); - gst_buffer_unref (buf); - --collect_pad->track->xiph_headers_to_skip; - return GST_FLOW_OK; - } - - /* for dirac we have to queue up everything up to a picture unit */ - if (collect_pad->track->codec_id != NULL && - strcmp (collect_pad->track->codec_id, - GST_MATROSKA_CODEC_ID_VIDEO_DIRAC) == 0) { - buf = gst_matroska_mux_handle_dirac_packet (mux, collect_pad, buf); - if (!buf) - return GST_FLOW_OK; - } - - /* hm, invalid timestamp (due to --to be fixed--- element upstream); - * this would wreak havoc with time stored in matroska file */ - /* TODO: maybe calculate a timestamp by using the previous timestamp - * and default duration */ - if (!GST_BUFFER_TIMESTAMP_IS_VALID (buf)) { - GST_WARNING_OBJECT (collect_pad->collect.pad, - "Invalid buffer timestamp; dropping buffer"); - gst_buffer_unref (buf); - return GST_FLOW_OK; - } - - /* set the timestamp for outgoing buffers */ - ebml->timestamp = GST_BUFFER_TIMESTAMP (buf); - - if (collect_pad->track->type == GST_MATROSKA_TRACK_TYPE_VIDEO && - !GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT)) { - GST_LOG_OBJECT (mux, "have video keyframe, ts=%" GST_TIME_FORMAT, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf))); - is_video_keyframe = TRUE; - } - - if (mux->cluster) { - /* start a new cluster at every keyframe, at every GstForceKeyUnit event, - * or when we may be reaching the limit of the relative timestamp */ - if (mux->cluster_time + - mux->max_cluster_duration < GST_BUFFER_TIMESTAMP (buf) - || is_video_keyframe || mux->force_key_unit_event) { - if (!mux->streamable) - gst_ebml_write_master_finish (ebml, mux->cluster); - - /* Forward the GstForceKeyUnit event after finishing the cluster */ - if (mux->force_key_unit_event) { - gst_pad_push_event (mux->srcpad, mux->force_key_unit_event); - mux->force_key_unit_event = NULL; - } - - mux->prev_cluster_size = ebml->pos - mux->cluster_pos; - mux->cluster_pos = ebml->pos; - gst_ebml_write_set_cache (ebml, 0x20); - mux->cluster = - gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_CLUSTER); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_CLUSTERTIMECODE, - gst_util_uint64_scale (GST_BUFFER_TIMESTAMP (buf), 1, - mux->time_scale)); - GST_LOG_OBJECT (mux, "cluster timestamp %" G_GUINT64_FORMAT, - gst_util_uint64_scale (GST_BUFFER_TIMESTAMP (buf), 1, - mux->time_scale)); - gst_ebml_write_flush_cache (ebml, TRUE, GST_BUFFER_TIMESTAMP (buf)); - mux->cluster_time = GST_BUFFER_TIMESTAMP (buf); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_PREVSIZE, - mux->prev_cluster_size); - } - } else { - /* first cluster */ - - mux->cluster_pos = ebml->pos; - gst_ebml_write_set_cache (ebml, 0x20); - mux->cluster = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_CLUSTER); - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_CLUSTERTIMECODE, - gst_util_uint64_scale (GST_BUFFER_TIMESTAMP (buf), 1, mux->time_scale)); - gst_ebml_write_flush_cache (ebml, TRUE, GST_BUFFER_TIMESTAMP (buf)); - mux->cluster_time = GST_BUFFER_TIMESTAMP (buf); - } - - /* update duration of this track */ - if (GST_BUFFER_DURATION_IS_VALID (buf)) - collect_pad->duration += GST_BUFFER_DURATION (buf); - - /* We currently write index entries for all video tracks or for the audio - * track in a single-track audio file. This could be improved by keeping the - * index only for the *first* video track. */ - - /* TODO: index is useful for every track, should contain the number of - * the block in the cluster which contains the timestamp, should also work - * for files with multiple audio tracks. - */ - if (!mux->streamable && - (is_video_keyframe || - ((collect_pad->track->type == GST_MATROSKA_TRACK_TYPE_AUDIO) && - (mux->num_streams == 1)))) { - gint last_idx = -1; - - if (mux->min_index_interval != 0) { - for (last_idx = mux->num_indexes - 1; last_idx >= 0; last_idx--) { - if (mux->index[last_idx].track == collect_pad->track->num) - break; - } - } - - if (last_idx < 0 || mux->min_index_interval == 0 || - (GST_CLOCK_DIFF (mux->index[last_idx].time, GST_BUFFER_TIMESTAMP (buf)) - >= mux->min_index_interval)) { - GstMatroskaIndex *idx; - - if (mux->num_indexes % 32 == 0) { - mux->index = g_renew (GstMatroskaIndex, mux->index, - mux->num_indexes + 32); - } - idx = &mux->index[mux->num_indexes++]; - - idx->pos = mux->cluster_pos; - idx->time = GST_BUFFER_TIMESTAMP (buf); - idx->track = collect_pad->track->num; - } - } - - /* Check if the duration differs from the default duration. */ - write_duration = FALSE; - block_duration = 0; - if (pad->frame_duration && GST_BUFFER_DURATION_IS_VALID (buf)) { - block_duration = gst_util_uint64_scale (GST_BUFFER_DURATION (buf), - 1, mux->time_scale); - - /* small difference should be ok. */ - if (block_duration > collect_pad->default_duration_scaled + 1 || - block_duration < collect_pad->default_duration_scaled - 1) { - write_duration = TRUE; - } - } - - /* write the block, for doctype v2 use SimpleBlock if possible - * one slice (*breath*). - * FIXME: Need to do correct lacing! */ - relative_timestamp64 = GST_BUFFER_TIMESTAMP (buf) - mux->cluster_time; - if (relative_timestamp64 >= 0) { - /* round the timestamp */ - relative_timestamp64 += gst_util_uint64_scale (mux->time_scale, 1, 2); - } else { - /* round the timestamp */ - relative_timestamp64 -= gst_util_uint64_scale (mux->time_scale, 1, 2); - } - relative_timestamp = gst_util_uint64_scale (relative_timestamp64, 1, - mux->time_scale); - if (mux->doctype_version > 1 && !write_duration) { - int flags = - GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT) ? 0 : 0x80; - - hdr = - gst_matroska_mux_create_buffer_header (collect_pad->track, - relative_timestamp, flags); - gst_ebml_write_set_cache (ebml, 0x40); - gst_ebml_write_buffer_header (ebml, GST_MATROSKA_ID_SIMPLEBLOCK, - GST_BUFFER_SIZE (buf) + GST_BUFFER_SIZE (hdr)); - gst_ebml_write_buffer (ebml, hdr); - gst_ebml_write_flush_cache (ebml, FALSE, GST_BUFFER_TIMESTAMP (buf)); - gst_ebml_write_buffer (ebml, buf); - - return gst_ebml_last_write_result (ebml); - } else { - gst_ebml_write_set_cache (ebml, GST_BUFFER_SIZE (buf) * 2); - /* write and call order slightly unnatural, - * but avoids seek and minizes pushing */ - blockgroup = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_BLOCKGROUP); - hdr = - gst_matroska_mux_create_buffer_header (collect_pad->track, - relative_timestamp, 0); - if (write_duration) - gst_ebml_write_uint (ebml, GST_MATROSKA_ID_BLOCKDURATION, block_duration); - gst_ebml_write_buffer_header (ebml, GST_MATROSKA_ID_BLOCK, - GST_BUFFER_SIZE (buf) + GST_BUFFER_SIZE (hdr)); - gst_ebml_write_buffer (ebml, hdr); - gst_ebml_write_master_finish_full (ebml, blockgroup, GST_BUFFER_SIZE (buf)); - gst_ebml_write_flush_cache (ebml, FALSE, GST_BUFFER_TIMESTAMP (buf)); - gst_ebml_write_buffer (ebml, buf); - - return gst_ebml_last_write_result (ebml); - } -} - - -/** - * gst_matroska_mux_collected: - * @pads: #GstCollectPads - * @uuser_data: #GstMatroskaMux - * - * Collectpads callback. - * - * Returns: #GstFlowReturn - */ -static GstFlowReturn -gst_matroska_mux_collected (GstCollectPads * pads, gpointer user_data) -{ - GstMatroskaMux *mux = GST_MATROSKA_MUX (user_data); - GstEbmlWrite *ebml = mux->ebml_write; - GstMatroskaPad *best; - gboolean popped; - GstFlowReturn ret = GST_FLOW_OK; - - GST_DEBUG_OBJECT (mux, "Collected pads"); - - /* start with a header */ - if (mux->state == GST_MATROSKA_MUX_STATE_START) { - if (mux->collect->data == NULL) { - GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL), - ("No input streams configured")); - return GST_FLOW_ERROR; - } - mux->state = GST_MATROSKA_MUX_STATE_HEADER; - gst_ebml_start_streamheader (ebml); - gst_matroska_mux_start (mux); - gst_matroska_mux_stop_streamheader (mux); - mux->state = GST_MATROSKA_MUX_STATE_DATA; - } - - do { - /* which stream to write from? */ - best = gst_matroska_mux_best_pad (mux, &popped); - - /* if there is no best pad, we have reached EOS */ - if (best == NULL) { - /* buffer popped, but none returned means it was clipped */ - if (popped) - break; - GST_DEBUG_OBJECT (mux, "No best pad finishing..."); - if (!mux->streamable) { - gst_matroska_mux_finish (mux); - } else { - GST_DEBUG_OBJECT (mux, "... but streamable, nothing to finish"); - } - gst_pad_push_event (mux->srcpad, gst_event_new_eos ()); - ret = GST_FLOW_UNEXPECTED; - break; - } - GST_DEBUG_OBJECT (best->collect.pad, "best pad - buffer ts %" - GST_TIME_FORMAT " dur %" GST_TIME_FORMAT, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (best->buffer)), - GST_TIME_ARGS (GST_BUFFER_DURATION (best->buffer))); - - /* make note of first and last encountered timestamps, so we can calculate - * the actual duration later when we send an updated header on eos */ - if (GST_BUFFER_TIMESTAMP_IS_VALID (best->buffer)) { - GstClockTime start_ts = GST_BUFFER_TIMESTAMP (best->buffer); - GstClockTime end_ts = start_ts; - - if (GST_BUFFER_DURATION_IS_VALID (best->buffer)) - end_ts += GST_BUFFER_DURATION (best->buffer); - else if (best->track->default_duration) - end_ts += best->track->default_duration; - - if (!GST_CLOCK_TIME_IS_VALID (best->end_ts) || end_ts > best->end_ts) - best->end_ts = end_ts; - - if (G_UNLIKELY (best->start_ts == GST_CLOCK_TIME_NONE || - start_ts < best->start_ts)) - best->start_ts = start_ts; - } - - /* write one buffer */ - ret = gst_matroska_mux_write_data (mux, best); - } while (ret == GST_FLOW_OK && !popped); - - return ret; -} - - -/** - * gst_matroska_mux_change_state: - * @element: #GstMatroskaMux - * @transition: State change transition. - * - * Change the muxer state. - * - * Returns: #GstStateChangeReturn - */ -static GstStateChangeReturn -gst_matroska_mux_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret; - GstMatroskaMux *mux = GST_MATROSKA_MUX (element); - - switch (transition) { - case GST_STATE_CHANGE_NULL_TO_READY: - break; - case GST_STATE_CHANGE_READY_TO_PAUSED: - gst_collect_pads_start (mux->collect); - break; - case GST_STATE_CHANGE_PAUSED_TO_PLAYING: - break; - case GST_STATE_CHANGE_PAUSED_TO_READY: - gst_collect_pads_stop (mux->collect); - break; - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - switch (transition) { - case GST_STATE_CHANGE_PLAYING_TO_PAUSED: - break; - case GST_STATE_CHANGE_PAUSED_TO_READY: - gst_matroska_mux_reset (GST_ELEMENT (mux)); - break; - case GST_STATE_CHANGE_READY_TO_NULL: - break; - default: - break; - } - - return ret; -} - -static void -gst_matroska_mux_set_property (GObject * object, - guint prop_id, const GValue * value, GParamSpec * pspec) -{ - GstMatroskaMux *mux; - - g_return_if_fail (GST_IS_MATROSKA_MUX (object)); - mux = GST_MATROSKA_MUX (object); - - switch (prop_id) { - case ARG_WRITING_APP: - if (!g_value_get_string (value)) { - GST_WARNING_OBJECT (mux, "writing-app property can not be NULL"); - break; - } - g_free (mux->writing_app); - mux->writing_app = g_value_dup_string (value); - break; - case ARG_DOCTYPE_VERSION: - mux->doctype_version = g_value_get_int (value); - break; - case ARG_MIN_INDEX_INTERVAL: - mux->min_index_interval = g_value_get_int64 (value); - break; - case ARG_STREAMABLE: - mux->streamable = g_value_get_boolean (value); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_matroska_mux_get_property (GObject * object, - guint prop_id, GValue * value, GParamSpec * pspec) -{ - GstMatroskaMux *mux; - - g_return_if_fail (GST_IS_MATROSKA_MUX (object)); - mux = GST_MATROSKA_MUX (object); - - switch (prop_id) { - case ARG_WRITING_APP: - g_value_set_string (value, mux->writing_app); - break; - case ARG_DOCTYPE_VERSION: - g_value_set_int (value, mux->doctype_version); - break; - case ARG_MIN_INDEX_INTERVAL: - g_value_set_int64 (value, mux->min_index_interval); - break; - case ARG_STREAMABLE: - g_value_set_boolean (value, mux->streamable); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} diff --git a/mobile/gst/matroska/matroska-mux.h b/mobile/gst/matroska/matroska-mux.h deleted file mode 100644 index 73bdc09..0000000 --- a/mobile/gst/matroska/matroska-mux.h +++ /dev/null @@ -1,142 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2005 Michal Benes <michal.benes@xeris.cz> - * - * matroska-mux.h: matroska file/stream muxer object types - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_MATROSKA_MUX_H__ -#define __GST_MATROSKA_MUX_H__ - -#include <gst/gst.h> -#include <gst/base/gstcollectpads.h> - -#include "ebml-write.h" -#include "matroska-ids.h" - -G_BEGIN_DECLS - -#define GST_TYPE_MATROSKA_MUX \ - (gst_matroska_mux_get_type ()) -#define GST_MATROSKA_MUX(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_MUX, GstMatroskaMux)) -#define GST_MATROSKA_MUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_MUX, GstMatroskaMuxClass)) -#define GST_IS_MATROSKA_MUX(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_MUX)) -#define GST_IS_MATROSKA_MUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_MUX)) - -typedef enum { - GST_MATROSKA_MUX_STATE_START, - GST_MATROSKA_MUX_STATE_HEADER, - GST_MATROSKA_MUX_STATE_DATA, -} GstMatroskaMuxState; - -typedef struct _GstMatroskaMetaSeekIndex { - guint32 id; - guint64 pos; -} GstMatroskaMetaSeekIndex; - -/* all information needed for one matroska stream */ -typedef struct -{ - GstCollectData collect; /* we extend the CollectData */ - GstMatroskaTrackContext *track; - - GstBuffer *buffer; /* the queued buffer for this pad */ - - guint64 duration; - GstClockTime start_ts; - GstClockTime end_ts; /* last timestamp + (if available) duration */ - guint64 default_duration_scaled; -} -GstMatroskaPad; - - -typedef struct _GstMatroskaMux { - GstElement element; - - /* < private > */ - - /* pads */ - GstPad *srcpad; - GstCollectPads *collect; - GstPadEventFunction collect_event; - GstEbmlWrite *ebml_write; - - guint num_streams, - num_v_streams, num_a_streams, num_t_streams; - - /* Application name (for the writing application header element) */ - gchar *writing_app; - - /* EBML DocType. */ - const gchar *doctype; - - /* DocType version. */ - guint doctype_version; - - /* state */ - GstMatroskaMuxState state; - - /* a cue (index) table */ - GstMatroskaIndex *index; - guint num_indexes; - GstClockTimeDiff min_index_interval; - gboolean streamable; - - /* timescale in the file */ - guint64 time_scale; - /* based on timescale, limit of nanoseconds you can have in a cluster */ - guint64 max_cluster_duration; - - /* length, position (time, ns) */ - guint64 duration; - - /* byte-positions of master-elements (for replacing contents) */ - guint64 segment_pos, - seekhead_pos, - cues_pos, - tags_pos, - info_pos, - tracks_pos, - duration_pos, - meta_pos; - guint64 segment_master; - - /* current cluster */ - guint64 cluster, - cluster_time, - cluster_pos, - prev_cluster_size; - - /* GstForceKeyUnit event */ - GstEvent *force_key_unit_event; - -} GstMatroskaMux; - -typedef struct _GstMatroskaMuxClass { - GstElementClass parent; -} GstMatroskaMuxClass; - -GType gst_matroska_mux_get_type (void); - -G_END_DECLS - -#endif /* __GST_MATROSKA_MUX_H__ */ diff --git a/mobile/gst/matroska/matroska-parse.c b/mobile/gst/matroska/matroska-parse.c deleted file mode 100644 index 6fd1f79..0000000 --- a/mobile/gst/matroska/matroska-parse.c +++ /dev/null @@ -1,3242 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2006 Tim-Philipp Müller <tim centricular net> - * (c) 2008 Sebastian Dröge <slomo@circular-chaos.org> - * (c) 2011 Debarshi Ray <rishi@gnu.org> - * - * matroska-parse.c: matroska file/stream parser - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* TODO: check CRC32 if present - * TODO: there can be a segment after the first segment. Handle like - * chained oggs. Fixes #334082 - * TODO: Test samples: http://www.matroska.org/samples/matrix/index.html - * http://samples.mplayerhq.hu/Matroska/ - * TODO: check if parseing is done correct for all codecs according to spec - * TODO: seeking with incomplete or without CUE - */ - -/** - * SECTION:element-matroskaparse - * - * matroskaparse parsees a Matroska file into the different contained streams. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch -v filesrc location=/path/to/mkv ! matroskaparse ! vorbisdec ! audioconvert ! audioresample ! autoaudiosink - * ]| This pipeline parsees a Matroska file and outputs the contained Vorbis audio. - * </refsect2> - */ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <math.h> -#include <string.h> -#include <glib/gprintf.h> - -/* For AVI compatibility mode - and for fourcc stuff */ -#include <gst/riff/riff-read.h> -#include <gst/riff/riff-ids.h> -#include <gst/riff/riff-media.h> - -#include <gst/tag/tag.h> - -#include <gst/pbutils/pbutils.h> - -#include "matroska-parse.h" -#include "matroska-ids.h" - -GST_DEBUG_CATEGORY_STATIC (matroskaparse_debug); -#define GST_CAT_DEFAULT matroskaparse_debug - -#define DEBUG_ELEMENT_START(parse, ebml, element) \ - GST_DEBUG_OBJECT (parse, "Parsing " element " element at offset %" \ - G_GUINT64_FORMAT, gst_ebml_read_get_pos (ebml)) - -#define DEBUG_ELEMENT_STOP(parse, ebml, element, ret) \ - GST_DEBUG_OBJECT (parse, "Parsing " element " element " \ - " finished with '%s'", gst_flow_get_name (ret)) - -enum -{ - ARG_0, - ARG_METADATA, - ARG_STREAMINFO -}; - -static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("video/x-matroska; video/webm") - ); - -static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("video/x-matroska; video/webm") - ); - -static GstFlowReturn gst_matroska_parse_parse_id (GstMatroskaParse * parse, - guint32 id, guint64 length, guint needed); - -/* element functions */ -//static void gst_matroska_parse_loop (GstPad * pad); - -static gboolean gst_matroska_parse_element_send_event (GstElement * element, - GstEvent * event); -static gboolean gst_matroska_parse_element_query (GstElement * element, - GstQuery * query); - -/* pad functions */ -static gboolean gst_matroska_parse_handle_seek_event (GstMatroskaParse * parse, - GstPad * pad, GstEvent * event); -static gboolean gst_matroska_parse_handle_src_event (GstPad * pad, - GstEvent * event); -static const GstQueryType *gst_matroska_parse_get_src_query_types (GstPad * - pad); -static gboolean gst_matroska_parse_handle_src_query (GstPad * pad, - GstQuery * query); - -static gboolean gst_matroska_parse_handle_sink_event (GstPad * pad, - GstEvent * event); -static GstFlowReturn gst_matroska_parse_chain (GstPad * pad, - GstBuffer * buffer); - -static GstStateChangeReturn -gst_matroska_parse_change_state (GstElement * element, - GstStateChange transition); -static void -gst_matroska_parse_set_index (GstElement * element, GstIndex * index); -static GstIndex *gst_matroska_parse_get_index (GstElement * element); - -/* stream methods */ -static void gst_matroska_parse_reset (GstElement * element); -static gboolean perform_seek_to_offset (GstMatroskaParse * parse, - guint64 offset); - -GType gst_matroska_parse_get_type (void); -GST_BOILERPLATE (GstMatroskaParse, gst_matroska_parse, GstElement, - GST_TYPE_ELEMENT); - -static void -gst_matroska_parse_base_init (gpointer klass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - gst_element_class_add_static_pad_template (element_class, &src_templ); - gst_element_class_add_static_pad_template (element_class, &sink_templ); - - gst_element_class_set_details_simple (element_class, "Matroska parser", - "Codec/Parser", - "Parses Matroska/WebM streams into video/audio/subtitles", - "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>"); -} - -static void -gst_matroska_parse_finalize (GObject * object) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (object); - - if (parse->common.src) { - g_ptr_array_free (parse->common.src, TRUE); - parse->common.src = NULL; - } - - if (parse->common.global_tags) { - gst_tag_list_free (parse->common.global_tags); - parse->common.global_tags = NULL; - } - - g_object_unref (parse->common.adapter); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static void -gst_matroska_parse_class_init (GstMatroskaParseClass * klass) -{ - GObjectClass *gobject_class = (GObjectClass *) klass; - GstElementClass *gstelement_class = (GstElementClass *) klass; - - GST_DEBUG_CATEGORY_INIT (matroskaparse_debug, "matroskaparse", 0, - "Matroska parser"); - - gobject_class->finalize = gst_matroska_parse_finalize; - - gstelement_class->change_state = - GST_DEBUG_FUNCPTR (gst_matroska_parse_change_state); - gstelement_class->send_event = - GST_DEBUG_FUNCPTR (gst_matroska_parse_element_send_event); - gstelement_class->query = - GST_DEBUG_FUNCPTR (gst_matroska_parse_element_query); - - gstelement_class->set_index = - GST_DEBUG_FUNCPTR (gst_matroska_parse_set_index); - gstelement_class->get_index = - GST_DEBUG_FUNCPTR (gst_matroska_parse_get_index); -} - -static void -gst_matroska_parse_init (GstMatroskaParse * parse, - GstMatroskaParseClass * klass) -{ - parse->common.sinkpad = gst_pad_new_from_static_template (&sink_templ, - "sink"); - gst_pad_set_chain_function (parse->common.sinkpad, - GST_DEBUG_FUNCPTR (gst_matroska_parse_chain)); - gst_pad_set_event_function (parse->common.sinkpad, - GST_DEBUG_FUNCPTR (gst_matroska_parse_handle_sink_event)); - gst_element_add_pad (GST_ELEMENT (parse), parse->common.sinkpad); - - parse->srcpad = gst_pad_new_from_static_template (&src_templ, "src"); - gst_pad_set_event_function (parse->srcpad, - GST_DEBUG_FUNCPTR (gst_matroska_parse_handle_src_event)); - gst_pad_set_query_type_function (parse->srcpad, - GST_DEBUG_FUNCPTR (gst_matroska_parse_get_src_query_types)); - gst_pad_set_query_function (parse->srcpad, - GST_DEBUG_FUNCPTR (gst_matroska_parse_handle_src_query)); - gst_pad_use_fixed_caps (parse->srcpad); - - gst_element_add_pad (GST_ELEMENT (parse), parse->srcpad); - - /* initial stream no. */ - parse->common.src = NULL; - - parse->common.writing_app = NULL; - parse->common.muxing_app = NULL; - parse->common.index = NULL; - parse->common.global_tags = NULL; - - parse->common.adapter = gst_adapter_new (); - - /* finish off */ - gst_matroska_parse_reset (GST_ELEMENT (parse)); -} - -static void -gst_matroska_track_free (GstMatroskaTrackContext * track) -{ - g_free (track->codec_id); - g_free (track->codec_name); - g_free (track->name); - g_free (track->language); - g_free (track->codec_priv); - g_free (track->codec_state); - - if (track->encodings != NULL) { - int i; - - for (i = 0; i < track->encodings->len; ++i) { - GstMatroskaTrackEncoding *enc = &g_array_index (track->encodings, - GstMatroskaTrackEncoding, - i); - - g_free (enc->comp_settings); - } - g_array_free (track->encodings, TRUE); - } - - if (track->pending_tags) - gst_tag_list_free (track->pending_tags); - - if (track->index_table) - g_array_free (track->index_table, TRUE); - - g_free (track); -} - -static void -gst_matroska_parse_free_parsed_el (gpointer mem, gpointer user_data) -{ - g_slice_free (guint64, mem); -} - -static void -gst_matroska_parse_reset (GstElement * element) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (element); - guint i; - - GST_DEBUG_OBJECT (parse, "Resetting state"); - - /* reset input */ - parse->common.state = GST_MATROSKA_READ_STATE_START; - - /* clean up existing streams */ - if (parse->common.src) { - g_assert (parse->common.src->len == parse->common.num_streams); - for (i = 0; i < parse->common.src->len; i++) { - GstMatroskaTrackContext *context = g_ptr_array_index (parse->common.src, - i); - - gst_caps_replace (&context->caps, NULL); - gst_matroska_track_free (context); - } - g_ptr_array_free (parse->common.src, TRUE); - } - parse->common.src = g_ptr_array_new (); - - parse->common.num_streams = 0; - parse->num_a_streams = 0; - parse->num_t_streams = 0; - parse->num_v_streams = 0; - - /* reset media info */ - g_free (parse->common.writing_app); - parse->common.writing_app = NULL; - g_free (parse->common.muxing_app); - parse->common.muxing_app = NULL; - - /* reset indexes */ - if (parse->common.index) { - g_array_free (parse->common.index, TRUE); - parse->common.index = NULL; - } - - /* reset timers */ - parse->clock = NULL; - parse->common.time_scale = 1000000; - parse->common.created = G_MININT64; - - parse->common.index_parsed = FALSE; - parse->tracks_parsed = FALSE; - parse->common.segmentinfo_parsed = FALSE; - parse->common.attachments_parsed = FALSE; - - g_list_foreach (parse->common.tags_parsed, - (GFunc) gst_matroska_parse_free_parsed_el, NULL); - g_list_free (parse->common.tags_parsed); - parse->common.tags_parsed = NULL; - - g_list_foreach (parse->seek_parsed, - (GFunc) gst_matroska_parse_free_parsed_el, NULL); - g_list_free (parse->seek_parsed); - parse->seek_parsed = NULL; - - gst_segment_init (&parse->common.segment, GST_FORMAT_TIME); - parse->last_stop_end = GST_CLOCK_TIME_NONE; - parse->seek_block = 0; - - parse->common.offset = 0; - parse->cluster_time = GST_CLOCK_TIME_NONE; - parse->cluster_offset = 0; - parse->next_cluster_offset = 0; - parse->index_offset = 0; - parse->seekable = FALSE; - parse->need_newsegment = FALSE; - parse->building_index = FALSE; - if (parse->seek_event) { - gst_event_unref (parse->seek_event); - parse->seek_event = NULL; - } - - parse->seek_index = NULL; - parse->seek_entry = 0; - - if (parse->close_segment) { - gst_event_unref (parse->close_segment); - parse->close_segment = NULL; - } - - if (parse->new_segment) { - gst_event_unref (parse->new_segment); - parse->new_segment = NULL; - } - - if (parse->common.element_index) { - gst_object_unref (parse->common.element_index); - parse->common.element_index = NULL; - } - parse->common.element_index_writer_id = -1; - - if (parse->common.global_tags) { - gst_tag_list_free (parse->common.global_tags); - } - parse->common.global_tags = gst_tag_list_new (); - - if (parse->common.cached_buffer) { - gst_buffer_unref (parse->common.cached_buffer); - parse->common.cached_buffer = NULL; - } - - if (parse->streamheader != NULL) { - gst_buffer_unref (parse->streamheader); - parse->streamheader = NULL; - } -} - -static GstFlowReturn -gst_matroska_parse_add_stream (GstMatroskaParse * parse, GstEbmlRead * ebml) -{ - GstMatroskaTrackContext *context; - GstFlowReturn ret; - guint32 id; - - DEBUG_ELEMENT_START (parse, ebml, "TrackEntry"); - - /* start with the master */ - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (parse, ebml, "TrackEntry", ret); - return ret; - } - - /* allocate generic... if we know the type, we'll g_renew() - * with the precise type */ - context = g_new0 (GstMatroskaTrackContext, 1); - g_ptr_array_add (parse->common.src, context); - context->index = parse->common.num_streams; - context->index_writer_id = -1; - context->type = 0; /* no type yet */ - context->default_duration = 0; - context->pos = 0; - context->set_discont = TRUE; - context->timecodescale = 1.0; - context->flags = - GST_MATROSKA_TRACK_ENABLED | GST_MATROSKA_TRACK_DEFAULT | - GST_MATROSKA_TRACK_LACING; - context->last_flow = GST_FLOW_OK; - context->to_offset = G_MAXINT64; - context->alignment = 1; - parse->common.num_streams++; - g_assert (parse->common.src->len == parse->common.num_streams); - - GST_DEBUG_OBJECT (parse, "Stream number %d", context->index); - - /* try reading the trackentry headers */ - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* track number (unique stream ID) */ - case GST_MATROSKA_ID_TRACKNUMBER:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_ERROR_OBJECT (parse, "Invalid TrackNumber 0"); - ret = GST_FLOW_ERROR; - break; - } else if (!gst_matroska_read_common_tracknumber_unique (&parse->common, - num)) { - GST_ERROR_OBJECT (parse, "TrackNumber %" G_GUINT64_FORMAT - " is not unique", num); - ret = GST_FLOW_ERROR; - break; - } - - GST_DEBUG_OBJECT (parse, "TrackNumber: %" G_GUINT64_FORMAT, num); - context->num = num; - break; - } - /* track UID (unique identifier) */ - case GST_MATROSKA_ID_TRACKUID:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_ERROR_OBJECT (parse, "Invalid TrackUID 0"); - ret = GST_FLOW_ERROR; - break; - } - - GST_DEBUG_OBJECT (parse, "TrackUID: %" G_GUINT64_FORMAT, num); - context->uid = num; - break; - } - - /* track type (video, audio, combined, subtitle, etc.) */ - case GST_MATROSKA_ID_TRACKTYPE:{ - guint64 track_type; - - if ((ret = gst_ebml_read_uint (ebml, &id, &track_type)) != GST_FLOW_OK) { - break; - } - - if (context->type != 0 && context->type != track_type) { - GST_WARNING_OBJECT (parse, - "More than one tracktype defined in a TrackEntry - skipping"); - break; - } else if (track_type < 1 || track_type > 254) { - GST_WARNING_OBJECT (parse, "Invalid TrackType %" G_GUINT64_FORMAT, - track_type); - break; - } - - GST_DEBUG_OBJECT (parse, "TrackType: %" G_GUINT64_FORMAT, track_type); - - /* ok, so we're actually going to reallocate this thing */ - switch (track_type) { - case GST_MATROSKA_TRACK_TYPE_VIDEO: - gst_matroska_track_init_video_context (&context); - break; - case GST_MATROSKA_TRACK_TYPE_AUDIO: - gst_matroska_track_init_audio_context (&context); - break; - case GST_MATROSKA_TRACK_TYPE_SUBTITLE: - gst_matroska_track_init_subtitle_context (&context); - break; - case GST_MATROSKA_TRACK_TYPE_COMPLEX: - case GST_MATROSKA_TRACK_TYPE_LOGO: - case GST_MATROSKA_TRACK_TYPE_BUTTONS: - case GST_MATROSKA_TRACK_TYPE_CONTROL: - default: - GST_WARNING_OBJECT (parse, - "Unknown or unsupported TrackType %" G_GUINT64_FORMAT, - track_type); - context->type = 0; - break; - } - g_ptr_array_index (parse->common.src, parse->common.num_streams - 1) - = context; - break; - } - - /* tracktype specific stuff for video */ - case GST_MATROSKA_ID_TRACKVIDEO:{ - GstMatroskaTrackVideoContext *videocontext; - - DEBUG_ELEMENT_START (parse, ebml, "TrackVideo"); - - if (!gst_matroska_track_init_video_context (&context)) { - GST_WARNING_OBJECT (parse, - "TrackVideo element in non-video track - ignoring track"); - ret = GST_FLOW_ERROR; - break; - } else if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - break; - } - videocontext = (GstMatroskaTrackVideoContext *) context; - g_ptr_array_index (parse->common.src, parse->common.num_streams - 1) - = context; - - while (ret == GST_FLOW_OK && - gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* Should be one level up but some broken muxers write it here. */ - case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackDefaultDuration 0"); - break; - } - - GST_DEBUG_OBJECT (parse, - "TrackDefaultDuration: %" G_GUINT64_FORMAT, num); - context->default_duration = num; - break; - } - - /* video framerate */ - /* NOTE: This one is here only for backward compatibility. - * Use _TRACKDEFAULDURATION one level up. */ - case GST_MATROSKA_ID_VIDEOFRAMERATE:{ - gdouble num; - - if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num <= 0.0) { - GST_WARNING_OBJECT (parse, "Invalid TrackVideoFPS %lf", num); - break; - } - - GST_DEBUG_OBJECT (parse, "TrackVideoFrameRate: %lf", num); - if (context->default_duration == 0) - context->default_duration = - gst_gdouble_to_guint64 ((gdouble) GST_SECOND * (1.0 / num)); - videocontext->default_fps = num; - break; - } - - /* width of the size to display the video at */ - case GST_MATROSKA_ID_VIDEODISPLAYWIDTH:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackVideoDisplayWidth 0"); - break; - } - - GST_DEBUG_OBJECT (parse, - "TrackVideoDisplayWidth: %" G_GUINT64_FORMAT, num); - videocontext->display_width = num; - break; - } - - /* height of the size to display the video at */ - case GST_MATROSKA_ID_VIDEODISPLAYHEIGHT:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackVideoDisplayHeight 0"); - break; - } - - GST_DEBUG_OBJECT (parse, - "TrackVideoDisplayHeight: %" G_GUINT64_FORMAT, num); - videocontext->display_height = num; - break; - } - - /* width of the video in the file */ - case GST_MATROSKA_ID_VIDEOPIXELWIDTH:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackVideoPixelWidth 0"); - break; - } - - GST_DEBUG_OBJECT (parse, - "TrackVideoPixelWidth: %" G_GUINT64_FORMAT, num); - videocontext->pixel_width = num; - break; - } - - /* height of the video in the file */ - case GST_MATROSKA_ID_VIDEOPIXELHEIGHT:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackVideoPixelHeight 0"); - break; - } - - GST_DEBUG_OBJECT (parse, - "TrackVideoPixelHeight: %" G_GUINT64_FORMAT, num); - videocontext->pixel_height = num; - break; - } - - /* whether the video is interlaced */ - case GST_MATROSKA_ID_VIDEOFLAGINTERLACED:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_VIDEOTRACK_INTERLACED; - else - context->flags &= ~GST_MATROSKA_VIDEOTRACK_INTERLACED; - GST_DEBUG_OBJECT (parse, "TrackVideoInterlaced: %d", - (context->flags & GST_MATROSKA_VIDEOTRACK_INTERLACED) ? 1 : - 0); - break; - } - - /* aspect ratio behaviour */ - case GST_MATROSKA_ID_VIDEOASPECTRATIOTYPE:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num != GST_MATROSKA_ASPECT_RATIO_MODE_FREE && - num != GST_MATROSKA_ASPECT_RATIO_MODE_KEEP && - num != GST_MATROSKA_ASPECT_RATIO_MODE_FIXED) { - GST_WARNING_OBJECT (parse, - "Unknown TrackVideoAspectRatioType 0x%x", (guint) num); - break; - } - GST_DEBUG_OBJECT (parse, - "TrackVideoAspectRatioType: %" G_GUINT64_FORMAT, num); - videocontext->asr_mode = num; - break; - } - - /* colourspace (only matters for raw video) fourcc */ - case GST_MATROSKA_ID_VIDEOCOLOURSPACE:{ - guint8 *data; - guint64 datalen; - - if ((ret = - gst_ebml_read_binary (ebml, &id, &data, - &datalen)) != GST_FLOW_OK) - break; - - if (datalen != 4) { - g_free (data); - GST_WARNING_OBJECT (parse, - "Invalid TrackVideoColourSpace length %" G_GUINT64_FORMAT, - datalen); - break; - } - - memcpy (&videocontext->fourcc, data, 4); - GST_DEBUG_OBJECT (parse, - "TrackVideoColourSpace: %" GST_FOURCC_FORMAT, - GST_FOURCC_ARGS (videocontext->fourcc)); - g_free (data); - break; - } - - default: - GST_WARNING_OBJECT (parse, - "Unknown TrackVideo subelement 0x%x - ignoring", id); - /* fall through */ - case GST_MATROSKA_ID_VIDEOSTEREOMODE: - case GST_MATROSKA_ID_VIDEODISPLAYUNIT: - case GST_MATROSKA_ID_VIDEOPIXELCROPBOTTOM: - case GST_MATROSKA_ID_VIDEOPIXELCROPTOP: - case GST_MATROSKA_ID_VIDEOPIXELCROPLEFT: - case GST_MATROSKA_ID_VIDEOPIXELCROPRIGHT: - case GST_MATROSKA_ID_VIDEOGAMMAVALUE: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (parse, ebml, "TrackVideo", ret); - break; - } - - /* tracktype specific stuff for audio */ - case GST_MATROSKA_ID_TRACKAUDIO:{ - GstMatroskaTrackAudioContext *audiocontext; - - DEBUG_ELEMENT_START (parse, ebml, "TrackAudio"); - - if (!gst_matroska_track_init_audio_context (&context)) { - GST_WARNING_OBJECT (parse, - "TrackAudio element in non-audio track - ignoring track"); - ret = GST_FLOW_ERROR; - break; - } - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) - break; - - audiocontext = (GstMatroskaTrackAudioContext *) context; - g_ptr_array_index (parse->common.src, parse->common.num_streams - 1) - = context; - - while (ret == GST_FLOW_OK && - gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* samplerate */ - case GST_MATROSKA_ID_AUDIOSAMPLINGFREQ:{ - gdouble num; - - if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK) - break; - - - if (num <= 0.0) { - GST_WARNING_OBJECT (parse, - "Invalid TrackAudioSamplingFrequency %lf", num); - break; - } - - GST_DEBUG_OBJECT (parse, "TrackAudioSamplingFrequency: %lf", num); - audiocontext->samplerate = num; - break; - } - - /* bitdepth */ - case GST_MATROSKA_ID_AUDIOBITDEPTH:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackAudioBitDepth 0"); - break; - } - - GST_DEBUG_OBJECT (parse, "TrackAudioBitDepth: %" G_GUINT64_FORMAT, - num); - audiocontext->bitdepth = num; - break; - } - - /* channels */ - case GST_MATROSKA_ID_AUDIOCHANNELS:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackAudioChannels 0"); - break; - } - - GST_DEBUG_OBJECT (parse, "TrackAudioChannels: %" G_GUINT64_FORMAT, - num); - audiocontext->channels = num; - break; - } - - default: - GST_WARNING_OBJECT (parse, - "Unknown TrackAudio subelement 0x%x - ignoring", id); - /* fall through */ - case GST_MATROSKA_ID_AUDIOCHANNELPOSITIONS: - case GST_MATROSKA_ID_AUDIOOUTPUTSAMPLINGFREQ: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (parse, ebml, "TrackAudio", ret); - - break; - } - - /* codec identifier */ - case GST_MATROSKA_ID_CODECID:{ - gchar *text; - - if ((ret = gst_ebml_read_ascii (ebml, &id, &text)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (parse, "CodecID: %s", GST_STR_NULL (text)); - context->codec_id = text; - break; - } - - /* codec private data */ - case GST_MATROSKA_ID_CODECPRIVATE:{ - guint8 *data; - guint64 size; - - if ((ret = - gst_ebml_read_binary (ebml, &id, &data, &size)) != GST_FLOW_OK) - break; - - context->codec_priv = data; - context->codec_priv_size = size; - - GST_DEBUG_OBJECT (parse, "CodecPrivate of size %" G_GUINT64_FORMAT, - size); - break; - } - - /* name of the codec */ - case GST_MATROSKA_ID_CODECNAME:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (parse, "CodecName: %s", GST_STR_NULL (text)); - context->codec_name = text; - break; - } - - /* name of this track */ - case GST_MATROSKA_ID_TRACKNAME:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - context->name = text; - GST_DEBUG_OBJECT (parse, "TrackName: %s", GST_STR_NULL (text)); - break; - } - - /* language (matters for audio/subtitles, mostly) */ - case GST_MATROSKA_ID_TRACKLANGUAGE:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - - context->language = text; - - /* fre-ca => fre */ - if (strlen (context->language) >= 4 && context->language[3] == '-') - context->language[3] = '\0'; - - GST_DEBUG_OBJECT (parse, "TrackLanguage: %s", - GST_STR_NULL (context->language)); - break; - } - - /* whether this is actually used */ - case GST_MATROSKA_ID_TRACKFLAGENABLED:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_ENABLED; - else - context->flags &= ~GST_MATROSKA_TRACK_ENABLED; - - GST_DEBUG_OBJECT (parse, "TrackEnabled: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* whether it's the default for this track type */ - case GST_MATROSKA_ID_TRACKFLAGDEFAULT:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_DEFAULT; - else - context->flags &= ~GST_MATROSKA_TRACK_DEFAULT; - - GST_DEBUG_OBJECT (parse, "TrackDefault: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* whether the track must be used during playback */ - case GST_MATROSKA_ID_TRACKFLAGFORCED:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_FORCED; - else - context->flags &= ~GST_MATROSKA_TRACK_FORCED; - - GST_DEBUG_OBJECT (parse, "TrackForced: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* lacing (like MPEG, where blocks don't end/start on frame - * boundaries) */ - case GST_MATROSKA_ID_TRACKFLAGLACING:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num) - context->flags |= GST_MATROSKA_TRACK_LACING; - else - context->flags &= ~GST_MATROSKA_TRACK_LACING; - - GST_DEBUG_OBJECT (parse, "TrackLacing: %d", - (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0); - break; - } - - /* default length (in time) of one data block in this track */ - case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - - if (num == 0) { - GST_WARNING_OBJECT (parse, "Invalid TrackDefaultDuration 0"); - break; - } - - GST_DEBUG_OBJECT (parse, "TrackDefaultDuration: %" G_GUINT64_FORMAT, - num); - context->default_duration = num; - break; - } - - case GST_MATROSKA_ID_CONTENTENCODINGS:{ - ret = gst_matroska_read_common_read_track_encodings (&parse->common, - ebml, context); - break; - } - - case GST_MATROSKA_ID_TRACKTIMECODESCALE:{ - gdouble num; - - if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num <= 0.0) { - GST_WARNING_OBJECT (parse, "Invalid TrackTimeCodeScale %lf", num); - break; - } - - GST_DEBUG_OBJECT (parse, "TrackTimeCodeScale: %lf", num); - context->timecodescale = num; - break; - } - - default: - GST_WARNING ("Unknown TrackEntry subelement 0x%x - ignoring", id); - /* pass-through */ - - /* we ignore these because they're nothing useful (i.e. crap) - * or simply not implemented yet. */ - case GST_MATROSKA_ID_TRACKMINCACHE: - case GST_MATROSKA_ID_TRACKMAXCACHE: - case GST_MATROSKA_ID_MAXBLOCKADDITIONID: - case GST_MATROSKA_ID_TRACKATTACHMENTLINK: - case GST_MATROSKA_ID_TRACKOVERLAY: - case GST_MATROSKA_ID_TRACKTRANSLATE: - case GST_MATROSKA_ID_TRACKOFFSET: - case GST_MATROSKA_ID_CODECSETTINGS: - case GST_MATROSKA_ID_CODECINFOURL: - case GST_MATROSKA_ID_CODECDOWNLOADURL: - case GST_MATROSKA_ID_CODECDECODEALL: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (parse, ebml, "TrackEntry", ret); - - /* Decode codec private data if necessary */ - if (context->encodings && context->encodings->len > 0 && context->codec_priv - && context->codec_priv_size > 0) { - if (!gst_matroska_decode_data (context->encodings, - &context->codec_priv, &context->codec_priv_size, - GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA, TRUE)) { - GST_WARNING_OBJECT (parse, "Decoding codec private data failed"); - ret = GST_FLOW_ERROR; - } - } - - if (context->type == 0 || context->codec_id == NULL || (ret != GST_FLOW_OK - && ret != GST_FLOW_UNEXPECTED)) { - if (ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED) - GST_WARNING_OBJECT (ebml, "Unknown stream/codec in track entry header"); - - parse->common.num_streams--; - g_ptr_array_remove_index (parse->common.src, parse->common.num_streams); - g_assert (parse->common.src->len == parse->common.num_streams); - if (context) { - gst_matroska_track_free (context); - } - - return ret; - } - - if ((context->language == NULL || *context->language == '\0') && - (context->type == GST_MATROSKA_TRACK_TYPE_AUDIO || - context->type == GST_MATROSKA_TRACK_TYPE_SUBTITLE)) { - GST_LOG ("stream %d: language=eng (assuming default)", context->index); - context->language = g_strdup ("eng"); - } - - - /* tadaah! */ - return ret; -} - -static const GstQueryType * -gst_matroska_parse_get_src_query_types (GstPad * pad) -{ - static const GstQueryType query_types[] = { - GST_QUERY_POSITION, - GST_QUERY_DURATION, - GST_QUERY_SEEKING, - 0 - }; - - return query_types; -} - -static gboolean -gst_matroska_parse_query (GstMatroskaParse * parse, GstPad * pad, - GstQuery * query) -{ - gboolean res = FALSE; - GstMatroskaTrackContext *context = NULL; - - if (pad) { - context = gst_pad_get_element_private (pad); - } - - switch (GST_QUERY_TYPE (query)) { - case GST_QUERY_POSITION: - { - GstFormat format; - - gst_query_parse_position (query, &format, NULL); - - if (format == GST_FORMAT_TIME) { - GST_OBJECT_LOCK (parse); - if (context) - gst_query_set_position (query, GST_FORMAT_TIME, context->pos); - else - gst_query_set_position (query, GST_FORMAT_TIME, - parse->common.segment.last_stop); - GST_OBJECT_UNLOCK (parse); - } else if (format == GST_FORMAT_DEFAULT && context - && context->default_duration) { - GST_OBJECT_LOCK (parse); - gst_query_set_position (query, GST_FORMAT_DEFAULT, - context->pos / context->default_duration); - GST_OBJECT_UNLOCK (parse); - } else { - GST_DEBUG_OBJECT (parse, - "only position query in TIME and DEFAULT format is supported"); - } - - res = TRUE; - break; - } - case GST_QUERY_DURATION: - { - GstFormat format; - - gst_query_parse_duration (query, &format, NULL); - - if (format == GST_FORMAT_TIME) { - GST_OBJECT_LOCK (parse); - gst_query_set_duration (query, GST_FORMAT_TIME, - parse->common.segment.duration); - GST_OBJECT_UNLOCK (parse); - } else if (format == GST_FORMAT_DEFAULT && context - && context->default_duration) { - GST_OBJECT_LOCK (parse); - gst_query_set_duration (query, GST_FORMAT_DEFAULT, - parse->common.segment.duration / context->default_duration); - GST_OBJECT_UNLOCK (parse); - } else { - GST_DEBUG_OBJECT (parse, - "only duration query in TIME and DEFAULT format is supported"); - } - - res = TRUE; - break; - } - - case GST_QUERY_SEEKING: - { - GstFormat fmt; - - gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL); - if (fmt == GST_FORMAT_TIME) { - gboolean seekable; - - /* assuming we'll be able to get an index ... */ - seekable = parse->seekable; - - gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, - 0, parse->common.segment.duration); - res = TRUE; - } - break; - } - default: - res = gst_pad_query_default (pad, query); - break; - } - - return res; -} - -static gboolean -gst_matroska_parse_element_query (GstElement * element, GstQuery * query) -{ - return gst_matroska_parse_query (GST_MATROSKA_PARSE (element), NULL, query); -} - -static gboolean -gst_matroska_parse_handle_src_query (GstPad * pad, GstQuery * query) -{ - gboolean ret; - GstMatroskaParse *parse = GST_MATROSKA_PARSE (gst_pad_get_parent (pad)); - - ret = gst_matroska_parse_query (parse, pad, query); - - gst_object_unref (parse); - - return ret; -} - -/* returns FALSE if there are no pads to deliver event to, - * otherwise TRUE (whatever the outcome of event sending), - * takes ownership of the passed event! */ -static gboolean -gst_matroska_parse_send_event (GstMatroskaParse * parse, GstEvent * event) -{ - gboolean ret = FALSE; - - g_return_val_if_fail (event != NULL, FALSE); - - GST_DEBUG_OBJECT (parse, "Sending event of type %s to all source pads", - GST_EVENT_TYPE_NAME (event)); - - gst_pad_push_event (parse->srcpad, event); - - return ret; -} - -static gboolean -gst_matroska_parse_element_send_event (GstElement * element, GstEvent * event) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (element); - gboolean res; - - g_return_val_if_fail (event != NULL, FALSE); - - if (GST_EVENT_TYPE (event) == GST_EVENT_SEEK) { - res = gst_matroska_parse_handle_seek_event (parse, NULL, event); - } else { - GST_WARNING_OBJECT (parse, "Unhandled event of type %s", - GST_EVENT_TYPE_NAME (event)); - res = FALSE; - } - gst_event_unref (event); - return res; -} - -/* searches for a cluster start from @pos, - * return GST_FLOW_OK and cluster position in @pos if found */ -static GstFlowReturn -gst_matroska_parse_search_cluster (GstMatroskaParse * parse, gint64 * pos) -{ - gint64 newpos = *pos; - gint64 orig_offset; - GstFlowReturn ret = GST_FLOW_OK; - const guint chunk = 64 * 1024; - GstBuffer *buf = NULL; - guint64 length; - guint32 id; - guint needed; - - orig_offset = parse->common.offset; - - /* read in at newpos and scan for ebml cluster id */ - while (1) { - GstByteReader reader; - gint cluster_pos; - - ret = gst_pad_pull_range (parse->common.sinkpad, newpos, chunk, &buf); - if (ret != GST_FLOW_OK) - break; - GST_DEBUG_OBJECT (parse, "read buffer size %d at offset %" G_GINT64_FORMAT, - GST_BUFFER_SIZE (buf), newpos); - gst_byte_reader_init_from_buffer (&reader, buf); - cluster_pos = 0; - resume: - cluster_pos = gst_byte_reader_masked_scan_uint32 (&reader, 0xffffffff, - GST_MATROSKA_ID_CLUSTER, cluster_pos, - GST_BUFFER_SIZE (buf) - cluster_pos); - if (cluster_pos >= 0) { - newpos += cluster_pos; - GST_DEBUG_OBJECT (parse, - "found cluster ebml id at offset %" G_GINT64_FORMAT, newpos); - /* extra checks whether we really sync'ed to a cluster: - * - either it is the first and only cluster - * - either there is a cluster after this one - * - either cluster length is undefined - */ - /* ok if first cluster (there may not a subsequent one) */ - if (newpos == parse->first_cluster_offset) { - GST_DEBUG_OBJECT (parse, "cluster is first cluster -> OK"); - break; - } - parse->common.offset = newpos; - ret = gst_matroska_read_common_peek_id_length_pull (&parse->common, - GST_ELEMENT_CAST (parse), &id, &length, &needed); - if (ret != GST_FLOW_OK) - goto resume; - g_assert (id == GST_MATROSKA_ID_CLUSTER); - GST_DEBUG_OBJECT (parse, "cluster size %" G_GUINT64_FORMAT ", prefix %d", - length, needed); - /* ok if undefined length or first cluster */ - if (length == G_MAXUINT64) { - GST_DEBUG_OBJECT (parse, "cluster has undefined length -> OK"); - break; - } - /* skip cluster */ - parse->common.offset += length + needed; - ret = gst_matroska_read_common_peek_id_length_pull (&parse->common, - GST_ELEMENT_CAST (parse), &id, &length, &needed); - if (ret != GST_FLOW_OK) - goto resume; - GST_DEBUG_OBJECT (parse, "next element is %scluster", - id == GST_MATROSKA_ID_CLUSTER ? "" : "not "); - if (id == GST_MATROSKA_ID_CLUSTER) - break; - /* not ok, resume */ - goto resume; - } else { - /* partial cluster id may have been in tail of buffer */ - newpos += MAX (GST_BUFFER_SIZE (buf), 4) - 3; - gst_buffer_unref (buf); - buf = NULL; - } - } - - if (buf) { - gst_buffer_unref (buf); - buf = NULL; - } - - parse->common.offset = orig_offset; - *pos = newpos; - return ret; -} - - -static gboolean -gst_matroska_parse_handle_seek_event (GstMatroskaParse * parse, - GstPad * pad, GstEvent * event) -{ - GstMatroskaIndex *entry = NULL; - GstSeekFlags flags; - GstSeekType cur_type, stop_type; - GstFormat format; - gdouble rate; - gint64 cur, stop; - GstMatroskaTrackContext *track = NULL; - GstSegment seeksegment = { 0, }; - gboolean update; - - if (pad) - track = gst_pad_get_element_private (pad); - - track = gst_matroska_read_common_get_seek_track (&parse->common, track); - - gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur, - &stop_type, &stop); - - /* we can only seek on time */ - if (format != GST_FORMAT_TIME) { - GST_DEBUG_OBJECT (parse, "Can only seek on TIME"); - return FALSE; - } - - /* copy segment, we need this because we still need the old - * segment when we close the current segment. */ - memcpy (&seeksegment, &parse->common.segment, sizeof (GstSegment)); - - if (event) { - GST_DEBUG_OBJECT (parse, "configuring seek"); - gst_segment_set_seek (&seeksegment, rate, format, flags, - cur_type, cur, stop_type, stop, &update); - } - - GST_DEBUG_OBJECT (parse, "New segment %" GST_SEGMENT_FORMAT, &seeksegment); - - /* check sanity before we start flushing and all that */ - GST_OBJECT_LOCK (parse); - if ((entry = gst_matroska_read_common_do_index_seek (&parse->common, track, - seeksegment.last_stop, &parse->seek_index, &parse->seek_entry)) == - NULL) { - /* pull mode without index can scan later on */ - GST_DEBUG_OBJECT (parse, "No matching seek entry in index"); - GST_OBJECT_UNLOCK (parse); - return FALSE; - } - GST_DEBUG_OBJECT (parse, "Seek position looks sane"); - GST_OBJECT_UNLOCK (parse); - - /* need to seek to cluster start to pick up cluster time */ - /* upstream takes care of flushing and all that - * ... and newsegment event handling takes care of the rest */ - return perform_seek_to_offset (parse, entry->pos - + parse->common.ebml_segment_start); -} - -/* - * Handle whether we can perform the seek event or if we have to let the chain - * function handle seeks to build the seek indexes first. - */ -static gboolean -gst_matroska_parse_handle_seek_push (GstMatroskaParse * parse, GstPad * pad, - GstEvent * event) -{ - GstSeekFlags flags; - GstSeekType cur_type, stop_type; - GstFormat format; - gdouble rate; - gint64 cur, stop; - - gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur, - &stop_type, &stop); - - /* sanity checks */ - - /* we can only seek on time */ - if (format != GST_FORMAT_TIME) { - GST_DEBUG_OBJECT (parse, "Can only seek on TIME"); - return FALSE; - } - - if (stop_type != GST_SEEK_TYPE_NONE && stop != GST_CLOCK_TIME_NONE) { - GST_DEBUG_OBJECT (parse, "Seek end-time not supported in streaming mode"); - return FALSE; - } - - if (!(flags & GST_SEEK_FLAG_FLUSH)) { - GST_DEBUG_OBJECT (parse, - "Non-flushing seek not supported in streaming mode"); - return FALSE; - } - - if (flags & GST_SEEK_FLAG_SEGMENT) { - GST_DEBUG_OBJECT (parse, "Segment seek not supported in streaming mode"); - return FALSE; - } - - /* check for having parsed index already */ - if (!parse->common.index_parsed) { - gboolean building_index; - guint64 offset = 0; - - if (!parse->index_offset) { - GST_DEBUG_OBJECT (parse, "no index (location); no seek in push mode"); - return FALSE; - } - - GST_OBJECT_LOCK (parse); - /* handle the seek event in the chain function */ - parse->common.state = GST_MATROSKA_READ_STATE_SEEK; - /* no more seek can be issued until state reset to _DATA */ - - /* copy the event */ - if (parse->seek_event) - gst_event_unref (parse->seek_event); - parse->seek_event = gst_event_ref (event); - - /* set the building_index flag so that only one thread can setup the - * structures for index seeking. */ - building_index = parse->building_index; - if (!building_index) { - parse->building_index = TRUE; - offset = parse->index_offset; - } - GST_OBJECT_UNLOCK (parse); - - if (!building_index) { - /* seek to the first subindex or legacy index */ - GST_INFO_OBJECT (parse, "Seeking to Cues at %" G_GUINT64_FORMAT, offset); - return perform_seek_to_offset (parse, offset); - } - - /* well, we are handling it already */ - return TRUE; - } - - /* delegate to tweaked regular seek */ - return gst_matroska_parse_handle_seek_event (parse, pad, event); -} - -static gboolean -gst_matroska_parse_handle_src_event (GstPad * pad, GstEvent * event) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (gst_pad_get_parent (pad)); - gboolean res = TRUE; - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_SEEK: - /* no seeking until we are (safely) ready */ - if (parse->common.state != GST_MATROSKA_READ_STATE_DATA) { - GST_DEBUG_OBJECT (parse, "not ready for seeking yet"); - return FALSE; - } - res = gst_matroska_parse_handle_seek_push (parse, pad, event); - gst_event_unref (event); - break; - - case GST_EVENT_QOS: - { - GstMatroskaTrackContext *context = gst_pad_get_element_private (pad); - if (context->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - GstMatroskaTrackVideoContext *videocontext = - (GstMatroskaTrackVideoContext *) context; - gdouble proportion; - GstClockTimeDiff diff; - GstClockTime timestamp; - - gst_event_parse_qos (event, &proportion, &diff, ×tamp); - - GST_OBJECT_LOCK (parse); - videocontext->earliest_time = timestamp + diff; - GST_OBJECT_UNLOCK (parse); - } - res = TRUE; - gst_event_unref (event); - break; - } - - /* events we don't need to handle */ - case GST_EVENT_NAVIGATION: - gst_event_unref (event); - res = FALSE; - break; - - case GST_EVENT_LATENCY: - default: - res = gst_pad_push_event (parse->common.sinkpad, event); - break; - } - - gst_object_unref (parse); - - return res; -} - -static GstFlowReturn -gst_matroska_parse_parse_tracks (GstMatroskaParse * parse, GstEbmlRead * ebml) -{ - GstFlowReturn ret = GST_FLOW_OK; - guint32 id; - - DEBUG_ELEMENT_START (parse, ebml, "Tracks"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (parse, ebml, "Tracks", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* one track within the "all-tracks" header */ - case GST_MATROSKA_ID_TRACKENTRY: - ret = gst_matroska_parse_add_stream (parse, ebml); - break; - - default: - ret = gst_matroska_read_common_parse_skip (&parse->common, ebml, - "Track", id); - break; - } - } - DEBUG_ELEMENT_STOP (parse, ebml, "Tracks", ret); - - parse->tracks_parsed = TRUE; - - return ret; -} - -/* - * Read signed/unsigned "EBML" numbers. - * Return: number of bytes processed. - */ - -static gint -gst_matroska_ebmlnum_uint (guint8 * data, guint size, guint64 * num) -{ - gint len_mask = 0x80, read = 1, n = 1, num_ffs = 0; - guint64 total; - - if (size <= 0) { - return -1; - } - - total = data[0]; - while (read <= 8 && !(total & len_mask)) { - read++; - len_mask >>= 1; - } - if (read > 8) - return -1; - - if ((total &= (len_mask - 1)) == len_mask - 1) - num_ffs++; - if (size < read) - return -1; - while (n < read) { - if (data[n] == 0xff) - num_ffs++; - total = (total << 8) | data[n]; - n++; - } - - if (read == num_ffs && total != 0) - *num = G_MAXUINT64; - else - *num = total; - - return read; -} - -static gint -gst_matroska_ebmlnum_sint (guint8 * data, guint size, gint64 * num) -{ - guint64 unum; - gint res; - - /* read as unsigned number first */ - if ((res = gst_matroska_ebmlnum_uint (data, size, &unum)) < 0) - return -1; - - /* make signed */ - if (unum == G_MAXUINT64) - *num = G_MAXINT64; - else - *num = unum - ((1 << ((7 * res) - 1)) - 1); - - return res; -} - -static GstFlowReturn -gst_matroska_parse_parse_blockgroup_or_simpleblock (GstMatroskaParse * parse, - GstEbmlRead * ebml, guint64 cluster_time, guint64 cluster_offset, - gboolean is_simpleblock) -{ - GstMatroskaTrackContext *stream = NULL; - GstFlowReturn ret = GST_FLOW_OK; - gboolean readblock = FALSE; - guint32 id; - guint64 block_duration = 0; - GstBuffer *buf = NULL; - gint stream_num = -1, n, laces = 0; - guint size = 0; - gint *lace_size = NULL; - gint64 time = 0; - gint flags = 0; - gint64 referenceblock = 0; - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if (!is_simpleblock) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) { - goto data_error; - } - } else { - id = GST_MATROSKA_ID_SIMPLEBLOCK; - } - - switch (id) { - /* one block inside the group. Note, block parsing is one - * of the harder things, so this code is a bit complicated. - * See http://www.matroska.org/ for documentation. */ - case GST_MATROSKA_ID_SIMPLEBLOCK: - case GST_MATROSKA_ID_BLOCK: - { - guint64 num; - guint8 *data; - - if (buf) { - gst_buffer_unref (buf); - buf = NULL; - } - if ((ret = gst_ebml_read_buffer (ebml, &id, &buf)) != GST_FLOW_OK) - break; - - data = GST_BUFFER_DATA (buf); - size = GST_BUFFER_SIZE (buf); - - /* first byte(s): blocknum */ - if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) - goto data_error; - data += n; - size -= n; - - /* fetch stream from num */ - stream_num = gst_matroska_read_common_stream_from_num (&parse->common, - num); - if (G_UNLIKELY (size < 3)) { - GST_WARNING_OBJECT (parse, "Invalid size %u", size); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } else if (G_UNLIKELY (stream_num < 0 || - stream_num >= parse->common.num_streams)) { - /* let's not give up on a stray invalid track number */ - GST_WARNING_OBJECT (parse, - "Invalid stream %d for track number %" G_GUINT64_FORMAT - "; ignoring block", stream_num, num); - goto done; - } - - stream = g_ptr_array_index (parse->common.src, stream_num); - - /* time (relative to cluster time) */ - time = ((gint16) GST_READ_UINT16_BE (data)); - data += 2; - size -= 2; - flags = GST_READ_UINT8 (data); - data += 1; - size -= 1; - - GST_LOG_OBJECT (parse, "time %" G_GUINT64_FORMAT ", flags %d", time, - flags); - - switch ((flags & 0x06) >> 1) { - case 0x0: /* no lacing */ - laces = 1; - lace_size = g_new (gint, 1); - lace_size[0] = size; - break; - - case 0x1: /* xiph lacing */ - case 0x2: /* fixed-size lacing */ - case 0x3: /* EBML lacing */ - if (size == 0) - goto invalid_lacing; - laces = GST_READ_UINT8 (data) + 1; - data += 1; - size -= 1; - lace_size = g_new0 (gint, laces); - - switch ((flags & 0x06) >> 1) { - case 0x1: /* xiph lacing */ { - guint temp, total = 0; - - for (n = 0; ret == GST_FLOW_OK && n < laces - 1; n++) { - while (1) { - if (size == 0) - goto invalid_lacing; - temp = GST_READ_UINT8 (data); - lace_size[n] += temp; - data += 1; - size -= 1; - if (temp != 0xff) - break; - } - total += lace_size[n]; - } - lace_size[n] = size - total; - break; - } - - case 0x2: /* fixed-size lacing */ - for (n = 0; n < laces; n++) - lace_size[n] = size / laces; - break; - - case 0x3: /* EBML lacing */ { - guint total; - - if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) - goto data_error; - data += n; - size -= n; - total = lace_size[0] = num; - for (n = 1; ret == GST_FLOW_OK && n < laces - 1; n++) { - gint64 snum; - gint r; - - if ((r = gst_matroska_ebmlnum_sint (data, size, &snum)) < 0) - goto data_error; - data += r; - size -= r; - lace_size[n] = lace_size[n - 1] + snum; - total += lace_size[n]; - } - if (n < laces) - lace_size[n] = size - total; - break; - } - } - break; - } - - if (ret != GST_FLOW_OK) - break; - - readblock = TRUE; - break; - } - - case GST_MATROSKA_ID_BLOCKDURATION:{ - ret = gst_ebml_read_uint (ebml, &id, &block_duration); - GST_DEBUG_OBJECT (parse, "BlockDuration: %" G_GUINT64_FORMAT, - block_duration); - break; - } - - case GST_MATROSKA_ID_REFERENCEBLOCK:{ - ret = gst_ebml_read_sint (ebml, &id, &referenceblock); - GST_DEBUG_OBJECT (parse, "ReferenceBlock: %" G_GINT64_FORMAT, - referenceblock); - break; - } - - case GST_MATROSKA_ID_CODECSTATE:{ - guint8 *data; - guint64 data_len = 0; - - if ((ret = - gst_ebml_read_binary (ebml, &id, &data, - &data_len)) != GST_FLOW_OK) - break; - - if (G_UNLIKELY (stream == NULL)) { - GST_WARNING_OBJECT (parse, - "Unexpected CodecState subelement - ignoring"); - break; - } - - g_free (stream->codec_state); - stream->codec_state = data; - stream->codec_state_size = data_len; - - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (&parse->common, ebml, - "BlockGroup", id); - break; - - case GST_MATROSKA_ID_BLOCKVIRTUAL: - case GST_MATROSKA_ID_BLOCKADDITIONS: - case GST_MATROSKA_ID_REFERENCEPRIORITY: - case GST_MATROSKA_ID_REFERENCEVIRTUAL: - case GST_MATROSKA_ID_SLICES: - GST_DEBUG_OBJECT (parse, - "Skipping BlockGroup subelement 0x%x - ignoring", id); - ret = gst_ebml_read_skip (ebml); - break; - } - - if (is_simpleblock) - break; - } - - /* reading a number or so could have failed */ - if (ret != GST_FLOW_OK) - goto data_error; - - if (ret == GST_FLOW_OK && readblock) { - guint64 duration = 0; - gint64 lace_time = 0; - gboolean delta_unit; - - stream = g_ptr_array_index (parse->common.src, stream_num); - - if (cluster_time != GST_CLOCK_TIME_NONE) { - /* FIXME: What to do with negative timestamps? Give timestamp 0 or -1? - * Drop unless the lace contains timestamp 0? */ - if (time < 0 && (-time) > cluster_time) { - lace_time = 0; - } else { - if (stream->timecodescale == 1.0) - lace_time = (cluster_time + time) * parse->common.time_scale; - else - lace_time = - gst_util_guint64_to_gdouble ((cluster_time + time) * - parse->common.time_scale) * stream->timecodescale; - } - } else { - lace_time = GST_CLOCK_TIME_NONE; - } - - if (lace_time != GST_CLOCK_TIME_NONE) { - parse->last_timestamp = lace_time; - } - /* need to refresh segment info ASAP */ - if (GST_CLOCK_TIME_IS_VALID (lace_time) && parse->need_newsegment) { - GST_DEBUG_OBJECT (parse, - "generating segment starting at %" GST_TIME_FORMAT, - GST_TIME_ARGS (lace_time)); - /* pretend we seeked here */ - gst_segment_set_seek (&parse->common.segment, parse->common.segment.rate, - GST_FORMAT_TIME, 0, GST_SEEK_TYPE_SET, lace_time, - GST_SEEK_TYPE_SET, GST_CLOCK_TIME_NONE, NULL); - /* now convey our segment notion downstream */ - gst_matroska_parse_send_event (parse, gst_event_new_new_segment (FALSE, - parse->common.segment.rate, parse->common.segment.format, - parse->common.segment.start, parse->common.segment.stop, - parse->common.segment.start)); - parse->need_newsegment = FALSE; - } - - if (block_duration) { - if (stream->timecodescale == 1.0) - duration = gst_util_uint64_scale (block_duration, - parse->common.time_scale, 1); - else - duration = - gst_util_gdouble_to_guint64 (gst_util_guint64_to_gdouble - (gst_util_uint64_scale (block_duration, parse->common.time_scale, - 1)) * stream->timecodescale); - } else if (stream->default_duration) { - duration = stream->default_duration * laces; - } - /* else duration is diff between timecode of this and next block */ - - /* For SimpleBlock, look at the keyframe bit in flags. Otherwise, - a ReferenceBlock implies that this is not a keyframe. In either - case, it only makes sense for video streams. */ - delta_unit = stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && - ((is_simpleblock && !(flags & 0x80)) || referenceblock); - - if (delta_unit && stream->set_discont) { - /* When doing seeks or such, we need to restart on key frames or - * decoders might choke. */ - GST_DEBUG_OBJECT (parse, "skipping delta unit"); - goto done; - } - - for (n = 0; n < laces; n++) { - if (G_UNLIKELY (lace_size[n] > size)) { - GST_WARNING_OBJECT (parse, "Invalid lace size"); - break; - } - - /* QoS for video track with an index. the assumption is that - index entries point to keyframes, but if that is not true we - will instad skip until the next keyframe. */ - if (GST_CLOCK_TIME_IS_VALID (lace_time) && - stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && - stream->index_table && parse->common.segment.rate > 0.0) { - GstMatroskaTrackVideoContext *videocontext = - (GstMatroskaTrackVideoContext *) stream; - GstClockTime earliest_time; - GstClockTime earliest_stream_time; - - GST_OBJECT_LOCK (parse); - earliest_time = videocontext->earliest_time; - GST_OBJECT_UNLOCK (parse); - earliest_stream_time = gst_segment_to_position (&parse->common.segment, - GST_FORMAT_TIME, earliest_time); - - if (GST_CLOCK_TIME_IS_VALID (lace_time) && - GST_CLOCK_TIME_IS_VALID (earliest_stream_time) && - lace_time <= earliest_stream_time) { - /* find index entry (keyframe) <= earliest_stream_time */ - GstMatroskaIndex *entry = - gst_util_array_binary_search (stream->index_table->data, - stream->index_table->len, sizeof (GstMatroskaIndex), - (GCompareDataFunc) gst_matroska_index_seek_find, - GST_SEARCH_MODE_BEFORE, &earliest_stream_time, NULL); - - /* if that entry (keyframe) is after the current the current - buffer, we can skip pushing (and thus decoding) all - buffers until that keyframe. */ - if (entry && GST_CLOCK_TIME_IS_VALID (entry->time) && - entry->time > lace_time) { - GST_LOG_OBJECT (parse, "Skipping lace before late keyframe"); - stream->set_discont = TRUE; - goto next_lace; - } - } - } -#if 0 - sub = gst_buffer_create_sub (buf, - GST_BUFFER_SIZE (buf) - size, lace_size[n]); - GST_DEBUG_OBJECT (parse, "created subbuffer %p", sub); - - if (delta_unit) - GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT); - else - GST_BUFFER_FLAG_UNSET (sub, GST_BUFFER_FLAG_DELTA_UNIT); - - if (stream->encodings != NULL && stream->encodings->len > 0) - sub = gst_matroska_decode_buffer (stream, sub); - - if (sub == NULL) { - GST_WARNING_OBJECT (parse, "Decoding buffer failed"); - goto next_lace; - } - - GST_BUFFER_TIMESTAMP (sub) = lace_time; - - if (GST_CLOCK_TIME_IS_VALID (lace_time)) { - GstClockTime last_stop_end; - - /* Check if this stream is after segment stop */ - if (GST_CLOCK_TIME_IS_VALID (parse->common.segment.stop) && - lace_time >= parse->common.segment.stop) { - GST_DEBUG_OBJECT (parse, - "Stream %d after segment stop %" GST_TIME_FORMAT, stream->index, - GST_TIME_ARGS (parse->common.segment.stop)); - gst_buffer_unref (sub); - goto eos; - } - if (offset >= stream->to_offset) { - GST_DEBUG_OBJECT (parse, "Stream %d after playback section", - stream->index); - gst_buffer_unref (sub); - goto eos; - } - - /* handle gaps, e.g. non-zero start-time, or an cue index entry - * that landed us with timestamps not quite intended */ - if (GST_CLOCK_TIME_IS_VALID (parse->segment.last_stop) && - parse->segment.rate > 0.0) { - GstClockTimeDiff diff; - - /* only send newsegments with increasing start times, - * otherwise if these go back and forth downstream (sinks) increase - * accumulated time and running_time */ - diff = GST_CLOCK_DIFF (parse->segment.last_stop, lace_time); - if (diff > 2 * GST_SECOND && lace_time > parse->segment.start && - (!GST_CLOCK_TIME_IS_VALID (parse->segment.stop) || - lace_time < parse->segment.stop)) { - GST_DEBUG_OBJECT (parse, - "Gap of %" G_GINT64_FORMAT " ns detected in" - "stream %d (%" GST_TIME_FORMAT " -> %" GST_TIME_FORMAT "). " - "Sending updated NEWSEGMENT events", diff, - stream->index, GST_TIME_ARGS (stream->pos), - GST_TIME_ARGS (lace_time)); - /* send newsegment events such that the gap is not accounted in - * accum time, hence running_time */ - /* close ahead of gap */ - gst_matroska_parse_send_event (parse, - gst_event_new_new_segment (TRUE, parse->segment.rate, - parse->segment.format, parse->segment.last_stop, - parse->segment.last_stop, parse->segment.last_stop)); - /* skip gap */ - gst_matroska_parse_send_event (parse, - gst_event_new_new_segment (FALSE, parse->segment.rate, - parse->segment.format, lace_time, parse->segment.stop, - lace_time)); - /* align segment view with downstream, - * prevents double-counting accum when closing segment */ - gst_segment_set_newsegment (&parse->segment, FALSE, - parse->segment.rate, parse->segment.format, lace_time, - parse->segment.stop, lace_time); - parse->segment.last_stop = lace_time; - } - } - - if (!GST_CLOCK_TIME_IS_VALID (parse->segment.last_stop) - || parse->segment.last_stop < lace_time) { - parse->segment.last_stop = lace_time; - } - - last_stop_end = lace_time; - if (duration) { - GST_BUFFER_DURATION (sub) = duration / laces; - last_stop_end += GST_BUFFER_DURATION (sub); - } - - if (!GST_CLOCK_TIME_IS_VALID (parse->last_stop_end) || - parse->last_stop_end < last_stop_end) - parse->last_stop_end = last_stop_end; - - if (parse->segment.duration == -1 || - parse->segment.duration < lace_time) { - gst_segment_set_duration (&parse->segment, GST_FORMAT_TIME, - last_stop_end); - gst_element_post_message (GST_ELEMENT_CAST (parse), - gst_message_new_duration (GST_OBJECT_CAST (parse), - GST_FORMAT_TIME, GST_CLOCK_TIME_NONE)); - } - } - - stream->pos = lace_time; - - gst_matroska_parse_sync_streams (parse); - - if (stream->set_discont) { - GST_DEBUG_OBJECT (parse, "marking DISCONT"); - GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DISCONT); - stream->set_discont = FALSE; - } - - /* reverse playback book-keeping */ - if (!GST_CLOCK_TIME_IS_VALID (stream->from_time)) - stream->from_time = lace_time; - if (stream->from_offset == -1) - stream->from_offset = offset; - - GST_DEBUG_OBJECT (parse, - "Pushing lace %d, data of size %d for stream %d, time=%" - GST_TIME_FORMAT " and duration=%" GST_TIME_FORMAT, n, - GST_BUFFER_SIZE (sub), stream_num, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)), - GST_TIME_ARGS (GST_BUFFER_DURATION (sub))); - - if (parse->element_index) { - if (stream->index_writer_id == -1) - gst_index_get_writer_id (parse->element_index, - GST_OBJECT (stream->pad), &stream->index_writer_id); - - GST_LOG_OBJECT (parse, "adding association %" GST_TIME_FORMAT "-> %" - G_GUINT64_FORMAT " for writer id %d", - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)), cluster_offset, - stream->index_writer_id); - gst_index_add_association (parse->element_index, - stream->index_writer_id, GST_BUFFER_FLAG_IS_SET (sub, - GST_BUFFER_FLAG_DELTA_UNIT) ? 0 : GST_ASSOCIATION_FLAG_KEY_UNIT, - GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (sub), GST_FORMAT_BYTES, - cluster_offset, NULL); - } - - gst_buffer_set_caps (sub, GST_PAD_CAPS (parse->srcpad)); - - /* Postprocess the buffers depending on the codec used */ - if (stream->postprocess_frame) { - GST_LOG_OBJECT (parse, "running post process"); - ret = stream->postprocess_frame (GST_ELEMENT (parse), stream, &sub); - } - - ret = gst_pad_push (stream->pad, sub); - if (parse->segment.rate < 0) { - if (lace_time > parse->segment.stop && ret == GST_FLOW_UNEXPECTED) { - /* In reverse playback we can get a GST_FLOW_UNEXPECTED when - * we are at the end of the segment, so we just need to jump - * back to the previous section. */ - GST_DEBUG_OBJECT (parse, "downstream has reached end of segment"); - ret = GST_FLOW_OK; - } - } - /* combine flows */ - ret = gst_matroska_parse_combine_flows (parse, stream, ret); -#endif - - next_lace: - size -= lace_size[n]; - if (lace_time != GST_CLOCK_TIME_NONE && duration) - lace_time += duration / laces; - else - lace_time = GST_CLOCK_TIME_NONE; - } - } - -done: - if (buf) - gst_buffer_unref (buf); - g_free (lace_size); - - return ret; - - /* EXITS */ -invalid_lacing: - { - GST_ELEMENT_WARNING (parse, STREAM, DEMUX, (NULL), ("Invalid lacing size")); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } -data_error: - { - GST_ELEMENT_WARNING (parse, STREAM, DEMUX, (NULL), ("Data error")); - /* non-fatal, try next block(group) */ - ret = GST_FLOW_OK; - goto done; - } -} - -/* return FALSE if block(group) should be skipped (due to a seek) */ -static inline gboolean -gst_matroska_parse_seek_block (GstMatroskaParse * parse) -{ - if (G_UNLIKELY (parse->seek_block)) { - if (!(--parse->seek_block)) { - return TRUE; - } else { - GST_LOG_OBJECT (parse, "should skip block due to seek"); - return FALSE; - } - } else { - return TRUE; - } -} - -static GstFlowReturn -gst_matroska_parse_parse_contents_seekentry (GstMatroskaParse * parse, - GstEbmlRead * ebml) -{ - GstFlowReturn ret; - guint64 seek_pos = (guint64) - 1; - guint32 seek_id = 0; - guint32 id; - - DEBUG_ELEMENT_START (parse, ebml, "Seek"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (parse, ebml, "Seek", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_SEEKID: - { - guint64 t; - - if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (parse, "SeekID: %" G_GUINT64_FORMAT, t); - seek_id = t; - break; - } - - case GST_MATROSKA_ID_SEEKPOSITION: - { - guint64 t; - - if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK) - break; - - if (t > G_MAXINT64) { - GST_WARNING_OBJECT (parse, - "Too large SeekPosition %" G_GUINT64_FORMAT, t); - break; - } - - GST_DEBUG_OBJECT (parse, "SeekPosition: %" G_GUINT64_FORMAT, t); - seek_pos = t; - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (&parse->common, ebml, - "SeekHead", id); - break; - } - } - - if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED) - return ret; - - if (!seek_id || seek_pos == (guint64) - 1) { - GST_WARNING_OBJECT (parse, "Incomplete seekhead entry (0x%x/%" - G_GUINT64_FORMAT ")", seek_id, seek_pos); - return GST_FLOW_OK; - } - - switch (seek_id) { - case GST_MATROSKA_ID_SEEKHEAD: - { - } - case GST_MATROSKA_ID_CUES: - case GST_MATROSKA_ID_TAGS: - case GST_MATROSKA_ID_TRACKS: - case GST_MATROSKA_ID_SEGMENTINFO: - case GST_MATROSKA_ID_ATTACHMENTS: - case GST_MATROSKA_ID_CHAPTERS: - { - guint64 length; - - /* remember */ - length = gst_matroska_read_common_get_length (&parse->common); - - if (length == (guint64) - 1) { - GST_DEBUG_OBJECT (parse, "no upstream length, skipping SeakHead entry"); - break; - } - - /* check for validity */ - if (seek_pos + parse->common.ebml_segment_start + 12 >= length) { - GST_WARNING_OBJECT (parse, - "SeekHead reference lies outside file!" " (%" - G_GUINT64_FORMAT "+%" G_GUINT64_FORMAT "+12 >= %" - G_GUINT64_FORMAT ")", seek_pos, parse->common.ebml_segment_start, - length); - break; - } - - /* only pick up index location when streaming */ - if (seek_id == GST_MATROSKA_ID_CUES) { - parse->index_offset = seek_pos + parse->common.ebml_segment_start; - GST_DEBUG_OBJECT (parse, "Cues located at offset %" G_GUINT64_FORMAT, - parse->index_offset); - } - break; - } - - default: - GST_DEBUG_OBJECT (parse, "Ignoring Seek entry for ID=0x%x", seek_id); - break; - } - DEBUG_ELEMENT_STOP (parse, ebml, "Seek", ret); - - return ret; -} - -static GstFlowReturn -gst_matroska_parse_parse_contents (GstMatroskaParse * parse, GstEbmlRead * ebml) -{ - GstFlowReturn ret = GST_FLOW_OK; - guint32 id; - - DEBUG_ELEMENT_START (parse, ebml, "SeekHead"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (parse, ebml, "SeekHead", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_SEEKENTRY: - { - ret = gst_matroska_parse_parse_contents_seekentry (parse, ebml); - /* Ignore EOS and errors here */ - if (ret != GST_FLOW_OK) { - GST_DEBUG_OBJECT (parse, "Ignoring %s", gst_flow_get_name (ret)); - ret = GST_FLOW_OK; - } - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (&parse->common, ebml, - "SeekHead", id); - break; - } - } - - DEBUG_ELEMENT_STOP (parse, ebml, "SeekHead", ret); - - return ret; -} - -#define GST_FLOW_OVERFLOW GST_FLOW_CUSTOM_ERROR - -#define MAX_BLOCK_SIZE (15 * 1024 * 1024) - -static inline GstFlowReturn -gst_matroska_parse_check_read_size (GstMatroskaParse * parse, guint64 bytes) -{ - if (G_UNLIKELY (bytes > MAX_BLOCK_SIZE)) { - /* only a few blocks are expected/allowed to be large, - * and will be recursed into, whereas others will be read and must fit */ - /* fatal in streaming case, as we can't step over easily */ - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, (NULL), - ("reading large block of size %" G_GUINT64_FORMAT " not supported; " - "file might be corrupt.", bytes)); - return GST_FLOW_ERROR; - } else { - return GST_FLOW_OK; - } -} - -/* returns TRUE if we truely are in error state, and should give up */ -static inline gboolean -gst_matroska_parse_check_parse_error (GstMatroskaParse * parse) -{ - gint64 pos; - - /* sigh, one last attempt above and beyond call of duty ...; - * search for cluster mark following current pos */ - pos = parse->common.offset; - GST_WARNING_OBJECT (parse, "parse error, looking for next cluster"); - if (gst_matroska_parse_search_cluster (parse, &pos) != GST_FLOW_OK) { - /* did not work, give up */ - return TRUE; - } else { - GST_DEBUG_OBJECT (parse, "... found at %" G_GUINT64_FORMAT, pos); - /* try that position */ - parse->common.offset = pos; - return FALSE; - } -} - -/* initializes @ebml with @bytes from input stream at current offset. - * Returns UNEXPECTED if insufficient available, - * ERROR if too much was attempted to read. */ -static inline GstFlowReturn -gst_matroska_parse_take (GstMatroskaParse * parse, guint64 bytes, - GstEbmlRead * ebml) -{ - GstBuffer *buffer = NULL; - GstFlowReturn ret = GST_FLOW_OK; - - GST_LOG_OBJECT (parse, "taking %" G_GUINT64_FORMAT " bytes for parsing", - bytes); - ret = gst_matroska_parse_check_read_size (parse, bytes); - if (G_UNLIKELY (ret != GST_FLOW_OK)) { - /* otherwise fatal */ - ret = GST_FLOW_ERROR; - goto exit; - } - if (gst_adapter_available (parse->common.adapter) >= bytes) - buffer = gst_adapter_take_buffer (parse->common.adapter, bytes); - else - ret = GST_FLOW_UNEXPECTED; - if (G_LIKELY (buffer)) { - gst_ebml_read_init (ebml, GST_ELEMENT_CAST (parse), buffer, - parse->common.offset); - parse->common.offset += bytes; - } -exit: - return ret; -} - -static void -gst_matroska_parse_check_seekability (GstMatroskaParse * parse) -{ - GstQuery *query; - gboolean seekable = FALSE; - gint64 start = -1, stop = -1; - - query = gst_query_new_seeking (GST_FORMAT_BYTES); - if (!gst_pad_peer_query (parse->common.sinkpad, query)) { - GST_DEBUG_OBJECT (parse, "seeking query failed"); - goto done; - } - - gst_query_parse_seeking (query, NULL, &seekable, &start, &stop); - - /* try harder to query upstream size if we didn't get it the first time */ - if (seekable && stop == -1) { - GstFormat fmt = GST_FORMAT_BYTES; - - GST_DEBUG_OBJECT (parse, "doing duration query to fix up unset stop"); - gst_pad_query_peer_duration (parse->common.sinkpad, &fmt, &stop); - } - - /* if upstream doesn't know the size, it's likely that it's not seekable in - * practice even if it technically may be seekable */ - if (seekable && (start != 0 || stop <= start)) { - GST_DEBUG_OBJECT (parse, "seekable but unknown start/stop -> disable"); - seekable = FALSE; - } - -done: - GST_INFO_OBJECT (parse, "seekable: %d (%" G_GUINT64_FORMAT " - %" - G_GUINT64_FORMAT ")", seekable, start, stop); - parse->seekable = seekable; - - gst_query_unref (query); -} - -#if 0 -static GstFlowReturn -gst_matroska_parse_find_tracks (GstMatroskaParse * parse) -{ - guint32 id; - guint64 before_pos; - guint64 length; - guint needed; - GstFlowReturn ret = GST_FLOW_OK; - - GST_WARNING_OBJECT (parse, - "Found Cluster element before Tracks, searching Tracks"); - - /* remember */ - before_pos = parse->common.offset; - - /* Search Tracks element */ - while (TRUE) { - ret = gst_matroska_read_common_peek_id_length_pull (&parse->common, - GST_ELEMENT_CAST (parse), &id, &length, &needed); - if (ret != GST_FLOW_OK) - break; - - if (id != GST_MATROSKA_ID_TRACKS) { - /* we may be skipping large cluster here, so forego size check etc */ - /* ... but we can't skip undefined size; force error */ - if (length == G_MAXUINT64) { - ret = gst_matroska_parse_check_read_size (parse, length); - break; - } else { - parse->common.offset += needed; - parse->offset += length; - } - continue; - } - - /* will lead to track parsing ... */ - ret = gst_matroska_parse_parse_id (parse, id, length, needed); - break; - } - - /* seek back */ - parse->offset = before_pos; - - return ret; -} -#endif - -#define GST_READ_CHECK(stmt) \ -G_STMT_START { \ - if (G_UNLIKELY ((ret = (stmt)) != GST_FLOW_OK)) { \ - if (ret == GST_FLOW_OVERFLOW) { \ - ret = GST_FLOW_OK; \ - } \ - goto read_error; \ - } \ -} G_STMT_END - -static void -gst_matroska_parse_accumulate_streamheader (GstMatroskaParse * parse, - GstBuffer * buffer) -{ - if (parse->pushed_headers) { - GST_WARNING_OBJECT (parse, - "Accumulating headers, but headers are already pushed"); - } - - if (parse->streamheader) { - GstBuffer *buf; - - buf = gst_buffer_span (parse->streamheader, 0, buffer, - GST_BUFFER_SIZE (parse->streamheader) + GST_BUFFER_SIZE (buffer)); - gst_buffer_unref (parse->streamheader); - parse->streamheader = buf; - } else { - parse->streamheader = gst_buffer_ref (buffer); - } - - GST_DEBUG ("%d", GST_BUFFER_SIZE (parse->streamheader)); -} - -static GstFlowReturn -gst_matroska_parse_output (GstMatroskaParse * parse, GstBuffer * buffer, - gboolean keyframe) -{ - GstFlowReturn ret = GST_FLOW_OK; - - if (!parse->pushed_headers) { - GstCaps *caps; - GstStructure *s; - GValue streamheader = { 0 }; - GValue bufval = { 0 }; - GstBuffer *buf; - - caps = gst_caps_new_simple ("video/x-matroska", NULL); - s = gst_caps_get_structure (caps, 0); - g_value_init (&streamheader, GST_TYPE_ARRAY); - g_value_init (&bufval, GST_TYPE_BUFFER); - buf = gst_buffer_copy (parse->streamheader); - GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS); - gst_value_set_buffer (&bufval, buf); - gst_buffer_unref (buf); - gst_value_array_append_value (&streamheader, &bufval); - g_value_unset (&bufval); - gst_structure_set_value (s, "streamheader", &streamheader); - g_value_unset (&streamheader); - //gst_caps_replace (parse->caps, caps); - gst_pad_set_caps (parse->srcpad, caps); - - buf = gst_buffer_copy (parse->streamheader); - gst_buffer_set_caps (buf, caps); - gst_caps_unref (caps); - - GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT); - GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS); - GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT); - - ret = gst_pad_push (parse->srcpad, buf); - - parse->pushed_headers = TRUE; - } - - if (!keyframe) { - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); - } else { - GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); - } - if (GST_BUFFER_TIMESTAMP (buffer) != GST_CLOCK_TIME_NONE) { - parse->last_timestamp = GST_BUFFER_TIMESTAMP (buffer); - } else { - GST_BUFFER_TIMESTAMP (buffer) = parse->last_timestamp; - } - gst_buffer_set_caps (buffer, GST_PAD_CAPS (parse->srcpad)); - ret = gst_pad_push (parse->srcpad, gst_buffer_ref (buffer)); - - return ret; -} - -static GstFlowReturn -gst_matroska_parse_parse_id (GstMatroskaParse * parse, guint32 id, - guint64 length, guint needed) -{ - GstEbmlRead ebml = { 0, }; - GstFlowReturn ret = GST_FLOW_OK; - guint64 read; - //GstBuffer *buffer; - - GST_DEBUG_OBJECT (parse, "Parsing Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", prefix %d", id, length, needed); - -#if 0 - if (gst_adapter_available (parse->adapter) >= length + needed) { - buffer = gst_adapter_take_buffer (parse->adapter, length + needed); - gst_pad_push (parse->srcpad, buffer); - } else { - ret = GST_FLOW_UNEXPECTED; - } - //GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - - return ret; -#endif - - - - /* if we plan to read and parse this element, we need prefix (id + length) - * and the contents */ - /* mind about overflow wrap-around when dealing with undefined size */ - read = length; - if (G_LIKELY (length != G_MAXUINT64)) - read += needed; - - switch (parse->common.state) { - case GST_MATROSKA_READ_STATE_START: - switch (id) { - case GST_EBML_ID_HEADER: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - ret = gst_matroska_read_common_parse_header (&parse->common, &ebml); - if (ret != GST_FLOW_OK) - goto parse_failed; - parse->common.state = GST_MATROSKA_READ_STATE_SEGMENT; - gst_matroska_parse_check_seekability (parse); - gst_matroska_parse_accumulate_streamheader (parse, ebml.buf); - break; - default: - goto invalid_header; - break; - } - break; - case GST_MATROSKA_READ_STATE_SEGMENT: - switch (id) { - case GST_MATROSKA_ID_SEGMENT: - /* eat segment prefix */ - GST_READ_CHECK (gst_matroska_parse_take (parse, needed, &ebml)); - GST_DEBUG_OBJECT (parse, - "Found Segment start at offset %" G_GUINT64_FORMAT, - parse->common.offset); - /* seeks are from the beginning of the segment, - * after the segment ID/length */ - parse->common.ebml_segment_start = parse->common.offset; - parse->common.state = GST_MATROSKA_READ_STATE_HEADER; - gst_matroska_parse_accumulate_streamheader (parse, ebml.buf); - break; - default: - GST_WARNING_OBJECT (parse, - "Expected a Segment ID (0x%x), but received 0x%x!", - GST_MATROSKA_ID_SEGMENT, id); - GST_READ_CHECK (gst_matroska_parse_take (parse, needed, &ebml)); - gst_matroska_parse_accumulate_streamheader (parse, ebml.buf); - break; - } - break; - case GST_MATROSKA_READ_STATE_SCANNING: - if (id != GST_MATROSKA_ID_CLUSTER && - id != GST_MATROSKA_ID_CLUSTERTIMECODE) - goto skip; - /* fall-through */ - case GST_MATROSKA_READ_STATE_HEADER: - case GST_MATROSKA_READ_STATE_DATA: - case GST_MATROSKA_READ_STATE_SEEK: - switch (id) { - case GST_MATROSKA_ID_SEGMENTINFO: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - if (!parse->common.segmentinfo_parsed) { - ret = gst_matroska_read_common_parse_info (&parse->common, - GST_ELEMENT_CAST (parse), &ebml); - } - gst_matroska_parse_accumulate_streamheader (parse, ebml.buf); - break; - case GST_MATROSKA_ID_TRACKS: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - if (!parse->tracks_parsed) { - ret = gst_matroska_parse_parse_tracks (parse, &ebml); - } - gst_matroska_parse_accumulate_streamheader (parse, ebml.buf); - break; - case GST_MATROSKA_ID_CLUSTER: - if (G_UNLIKELY (!parse->tracks_parsed)) { - GST_DEBUG_OBJECT (parse, "Cluster before Track"); - goto not_streamable; - } - if (G_UNLIKELY (parse->common.state - == GST_MATROSKA_READ_STATE_HEADER)) { - parse->common.state = GST_MATROSKA_READ_STATE_DATA; - parse->first_cluster_offset = parse->common.offset; - GST_DEBUG_OBJECT (parse, "signaling no more pads"); - } - parse->cluster_time = GST_CLOCK_TIME_NONE; - parse->cluster_offset = parse->common.offset; - if (G_UNLIKELY (!parse->seek_first && parse->seek_block)) { - GST_DEBUG_OBJECT (parse, "seek target block %" G_GUINT64_FORMAT - " not found in Cluster, trying next Cluster's first block instead", - parse->seek_block); - parse->seek_block = 0; - } - parse->seek_first = FALSE; - /* record next cluster for recovery */ - if (read != G_MAXUINT64) - parse->next_cluster_offset = parse->cluster_offset + read; - /* eat cluster prefix */ - GST_READ_CHECK (gst_matroska_parse_take (parse, needed, &ebml)); - ret = gst_matroska_parse_output (parse, ebml.buf, TRUE); - //gst_matroska_parse_accumulate_streamheader (parse, ebml.buf); - break; - case GST_MATROSKA_ID_CLUSTERTIMECODE: - { - guint64 num; - - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - if ((ret = gst_ebml_read_uint (&ebml, &id, &num)) != GST_FLOW_OK) - goto parse_failed; - GST_DEBUG_OBJECT (parse, "ClusterTimeCode: %" G_GUINT64_FORMAT, num); - parse->cluster_time = num; - if (parse->common.element_index) { - if (parse->common.element_index_writer_id == -1) - gst_index_get_writer_id (parse->common.element_index, - GST_OBJECT (parse), &parse->common.element_index_writer_id); - GST_LOG_OBJECT (parse, "adding association %" GST_TIME_FORMAT "-> %" - G_GUINT64_FORMAT " for writer id %d", - GST_TIME_ARGS (parse->cluster_time), parse->cluster_offset, - parse->common.element_index_writer_id); - gst_index_add_association (parse->common.element_index, - parse->common.element_index_writer_id, - GST_ASSOCIATION_FLAG_KEY_UNIT, - GST_FORMAT_TIME, parse->cluster_time, - GST_FORMAT_BYTES, parse->cluster_offset, NULL); - } - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - } - case GST_MATROSKA_ID_BLOCKGROUP: - if (!gst_matroska_parse_seek_block (parse)) - goto skip; - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - DEBUG_ELEMENT_START (parse, &ebml, "BlockGroup"); - if ((ret = gst_ebml_read_master (&ebml, &id)) == GST_FLOW_OK) { - ret = gst_matroska_parse_parse_blockgroup_or_simpleblock (parse, - &ebml, parse->cluster_time, parse->cluster_offset, FALSE); - } - DEBUG_ELEMENT_STOP (parse, &ebml, "BlockGroup", ret); - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - case GST_MATROSKA_ID_SIMPLEBLOCK: - if (!gst_matroska_parse_seek_block (parse)) - goto skip; - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - DEBUG_ELEMENT_START (parse, &ebml, "SimpleBlock"); - ret = gst_matroska_parse_parse_blockgroup_or_simpleblock (parse, - &ebml, parse->cluster_time, parse->cluster_offset, TRUE); - DEBUG_ELEMENT_STOP (parse, &ebml, "SimpleBlock", ret); - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - case GST_MATROSKA_ID_ATTACHMENTS: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - if (!parse->common.attachments_parsed) { - ret = gst_matroska_read_common_parse_attachments (&parse->common, - GST_ELEMENT_CAST (parse), &ebml); - } - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - case GST_MATROSKA_ID_TAGS: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - ret = gst_matroska_read_common_parse_metadata (&parse->common, - GST_ELEMENT_CAST (parse), &ebml); - gst_matroska_parse_accumulate_streamheader (parse, ebml.buf); - break; - case GST_MATROSKA_ID_CHAPTERS: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - ret = gst_matroska_read_common_parse_chapters (&parse->common, &ebml); - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - case GST_MATROSKA_ID_SEEKHEAD: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - ret = gst_matroska_parse_parse_contents (parse, &ebml); - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - case GST_MATROSKA_ID_CUES: - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - if (!parse->common.index_parsed) { - ret = gst_matroska_read_common_parse_index (&parse->common, &ebml); - /* only push based; delayed index building */ - if (ret == GST_FLOW_OK - && parse->common.state == GST_MATROSKA_READ_STATE_SEEK) { - GstEvent *event; - - GST_OBJECT_LOCK (parse); - event = parse->seek_event; - parse->seek_event = NULL; - GST_OBJECT_UNLOCK (parse); - - g_assert (event); - /* unlikely to fail, since we managed to seek to this point */ - if (!gst_matroska_parse_handle_seek_event (parse, NULL, event)) - goto seek_failed; - /* resume data handling, main thread clear to seek again */ - GST_OBJECT_LOCK (parse); - parse->common.state = GST_MATROSKA_READ_STATE_DATA; - GST_OBJECT_UNLOCK (parse); - } - } - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - case GST_MATROSKA_ID_POSITION: - case GST_MATROSKA_ID_PREVSIZE: - case GST_MATROSKA_ID_ENCRYPTEDBLOCK: - case GST_MATROSKA_ID_SILENTTRACKS: - GST_DEBUG_OBJECT (parse, - "Skipping Cluster subelement 0x%x - ignoring", id); - /* fall-through */ - default: - skip: - GST_DEBUG_OBJECT (parse, "skipping Element 0x%x", id); - GST_READ_CHECK (gst_matroska_parse_take (parse, read, &ebml)); - gst_matroska_parse_output (parse, ebml.buf, FALSE); - break; - } - break; - } - - if (ret == GST_FLOW_PARSE) - goto parse_failed; - -exit: - gst_ebml_read_clear (&ebml); - return ret; - - /* ERRORS */ -read_error: - { - /* simply exit, maybe not enough data yet */ - /* no ebml to clear if read error */ - return ret; - } -parse_failed: - { - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, (NULL), - ("Failed to parse Element 0x%x", id)); - ret = GST_FLOW_ERROR; - goto exit; - } -not_streamable: - { - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, (NULL), - ("File layout does not permit streaming")); - ret = GST_FLOW_ERROR; - goto exit; - } -#if 0 -no_tracks: - { - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, (NULL), - ("No Tracks element found")); - ret = GST_FLOW_ERROR; - goto exit; - } -#endif -invalid_header: - { - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, (NULL), ("Invalid header")); - ret = GST_FLOW_ERROR; - goto exit; - } -seek_failed: - { - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, (NULL), ("Failed to seek")); - ret = GST_FLOW_ERROR; - goto exit; - } -} - -#if 0 -static void -gst_matroska_parse_loop (GstPad * pad) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (GST_PAD_PARENT (pad)); - GstFlowReturn ret; - guint32 id; - guint64 length; - guint needed; - - /* If we have to close a segment, send a new segment to do this now */ - if (G_LIKELY (parse->common.state == GST_MATROSKA_READ_STATE_DATA)) { - if (G_UNLIKELY (parse->close_segment)) { - gst_matroska_parse_send_event (parse, parse->close_segment); - parse->close_segment = NULL; - } - if (G_UNLIKELY (parse->new_segment)) { - gst_matroska_parse_send_event (parse, parse->new_segment); - parse->new_segment = NULL; - } - } - - ret = gst_matroska_read_common_peek_id_length_pull (&parse->common, - GST_ELEMENT_CAST (parse), &id, &length, &needed); - if (ret == GST_FLOW_UNEXPECTED) - goto eos; - if (ret != GST_FLOW_OK) { - if (gst_matroska_parse_check_parse_error (parse)) - goto pause; - else - return; - } - - GST_LOG_OBJECT (parse, "Offset %" G_GUINT64_FORMAT ", Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", needed %d", parse->offset, id, - length, needed); - - ret = gst_matroska_parse_parse_id (parse, id, length, needed); - if (ret == GST_FLOW_UNEXPECTED) - goto eos; - if (ret != GST_FLOW_OK) - goto pause; - - /* check if we're at the end of a configured segment */ - if (G_LIKELY (parse->src->len)) { - guint i; - - g_assert (parse->num_streams == parse->src->len); - for (i = 0; i < parse->src->len; i++) { - GstMatroskaTrackContext *context = g_ptr_array_index (parse->src, i); - GST_DEBUG_OBJECT (context->pad, "pos %" GST_TIME_FORMAT, - GST_TIME_ARGS (context->pos)); - if (context->eos == FALSE) - goto next; - } - - GST_INFO_OBJECT (parse, "All streams are EOS"); - ret = GST_FLOW_UNEXPECTED; - goto eos; - } - -next: - if (G_UNLIKELY (parse->offset == - gst_matroska_read_common_get_length (&parse->common))) { - GST_LOG_OBJECT (parse, "Reached end of stream"); - ret = GST_FLOW_UNEXPECTED; - goto eos; - } - - return; - - /* ERRORS */ -eos: - { - if (parse->segment.rate < 0.0) { - ret = gst_matroska_parse_seek_to_previous_keyframe (parse); - if (ret == GST_FLOW_OK) - return; - } - /* fall-through */ - } -pause: - { - const gchar *reason = gst_flow_get_name (ret); - gboolean push_eos = FALSE; - - GST_LOG_OBJECT (parse, "pausing task, reason %s", reason); - parse->segment_running = FALSE; - gst_pad_pause_task (parse->common.sinkpad); - - if (ret == GST_FLOW_UNEXPECTED) { - /* perform EOS logic */ - - /* Close the segment, i.e. update segment stop with the duration - * if no stop was set */ - if (GST_CLOCK_TIME_IS_VALID (parse->last_stop_end) && - !GST_CLOCK_TIME_IS_VALID (parse->segment.stop)) { - GstEvent *event = - gst_event_new_new_segment_full (TRUE, parse->segment.rate, - parse->segment.applied_rate, parse->segment.format, - parse->segment.start, - MAX (parse->last_stop_end, parse->segment.start), - parse->segment.time); - gst_matroska_parse_send_event (parse, event); - } - - if (parse->segment.flags & GST_SEEK_FLAG_SEGMENT) { - gint64 stop; - - /* for segment playback we need to post when (in stream time) - * we stopped, this is either stop (when set) or the duration. */ - if ((stop = parse->segment.stop) == -1) - stop = parse->last_stop_end; - - GST_LOG_OBJECT (parse, "Sending segment done, at end of segment"); - gst_element_post_message (GST_ELEMENT (parse), - gst_message_new_segment_done (GST_OBJECT (parse), GST_FORMAT_TIME, - stop)); - } else { - push_eos = TRUE; - } - } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED) { - /* for fatal errors we post an error message */ - GST_ELEMENT_ERROR (parse, STREAM, FAILED, (NULL), - ("stream stopped, reason %s", reason)); - push_eos = TRUE; - } - if (push_eos) { - /* send EOS, and prevent hanging if no streams yet */ - GST_LOG_OBJECT (parse, "Sending EOS, at end of stream"); - if (!gst_matroska_parse_send_event (parse, gst_event_new_eos ()) && - (ret == GST_FLOW_UNEXPECTED)) { - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, - (NULL), ("got eos but no streams (yet)")); - } - } - return; - } -} -#endif - -/* - * Create and push a flushing seek event upstream - */ -static gboolean -perform_seek_to_offset (GstMatroskaParse * parse, guint64 offset) -{ - GstEvent *event; - gboolean res = 0; - - GST_DEBUG_OBJECT (parse, "Seeking to %" G_GUINT64_FORMAT, offset); - - event = - gst_event_new_seek (1.0, GST_FORMAT_BYTES, - GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset, - GST_SEEK_TYPE_NONE, -1); - - res = gst_pad_push_event (parse->common.sinkpad, event); - - /* newsegment event will update offset */ - return res; -} - -static GstFlowReturn -gst_matroska_parse_chain (GstPad * pad, GstBuffer * buffer) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (GST_PAD_PARENT (pad)); - guint available; - GstFlowReturn ret = GST_FLOW_OK; - guint needed = 0; - guint32 id; - guint64 length; - - if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buffer))) { - GST_DEBUG_OBJECT (parse, "got DISCONT"); - gst_adapter_clear (parse->common.adapter); - GST_OBJECT_LOCK (parse); - gst_matroska_read_common_reset_streams (&parse->common, - GST_CLOCK_TIME_NONE, FALSE); - GST_OBJECT_UNLOCK (parse); - } - - gst_adapter_push (parse->common.adapter, buffer); - buffer = NULL; - -next: - available = gst_adapter_available (parse->common.adapter); - - ret = gst_matroska_read_common_peek_id_length_push (&parse->common, - GST_ELEMENT_CAST (parse), &id, &length, &needed); - if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)) - return ret; - - GST_LOG_OBJECT (parse, "Offset %" G_GUINT64_FORMAT ", Element id 0x%x, " - "size %" G_GUINT64_FORMAT ", needed %d, available %d", - parse->common.offset, id, length, needed, available); - - if (needed > available) - return GST_FLOW_OK; - - ret = gst_matroska_parse_parse_id (parse, id, length, needed); - if (ret == GST_FLOW_UNEXPECTED) { - /* need more data */ - return GST_FLOW_OK; - } else if (ret != GST_FLOW_OK) { - return ret; - } else - goto next; -} - -static gboolean -gst_matroska_parse_handle_sink_event (GstPad * pad, GstEvent * event) -{ - gboolean res = TRUE; - GstMatroskaParse *parse = GST_MATROSKA_PARSE (GST_PAD_PARENT (pad)); - - GST_DEBUG_OBJECT (parse, - "have event type %s: %p on sink pad", GST_EVENT_TYPE_NAME (event), event); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_NEWSEGMENT: - { - GstFormat format; - gdouble rate, arate; - gint64 start, stop, time = 0; - gboolean update; - GstSegment segment; - - /* some debug output */ - gst_segment_init (&segment, GST_FORMAT_UNDEFINED); - gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format, - &start, &stop, &time); - gst_segment_set_newsegment_full (&segment, update, rate, arate, format, - start, stop, time); - GST_DEBUG_OBJECT (parse, - "received format %d newsegment %" GST_SEGMENT_FORMAT, format, - &segment); - - if (parse->common.state < GST_MATROSKA_READ_STATE_DATA) { - GST_DEBUG_OBJECT (parse, "still starting"); - goto exit; - } - - /* we only expect a BYTE segment, e.g. following a seek */ - if (format != GST_FORMAT_BYTES) { - GST_DEBUG_OBJECT (parse, "unsupported segment format, ignoring"); - goto exit; - } - - GST_DEBUG_OBJECT (parse, "clearing segment state"); - /* clear current segment leftover */ - gst_adapter_clear (parse->common.adapter); - /* and some streaming setup */ - parse->common.offset = start; - /* do not know where we are; - * need to come across a cluster and generate newsegment */ - parse->common.segment.last_stop = GST_CLOCK_TIME_NONE; - parse->cluster_time = GST_CLOCK_TIME_NONE; - parse->cluster_offset = 0; - parse->need_newsegment = TRUE; - /* but keep some of the upstream segment */ - parse->common.segment.rate = rate; - exit: - /* chain will send initial newsegment after pads have been added, - * or otherwise come up with one */ - GST_DEBUG_OBJECT (parse, "eating event"); - gst_event_unref (event); - res = TRUE; - break; - } - case GST_EVENT_EOS: - { - if (parse->common.state != GST_MATROSKA_READ_STATE_DATA) { - gst_event_unref (event); - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, - (NULL), ("got eos and didn't receive a complete header object")); - } else if (parse->common.num_streams == 0) { - GST_ELEMENT_ERROR (parse, STREAM, DEMUX, - (NULL), ("got eos but no streams (yet)")); - } else { - gst_matroska_parse_send_event (parse, event); - } - break; - } - case GST_EVENT_FLUSH_STOP: - { - gst_adapter_clear (parse->common.adapter); - GST_OBJECT_LOCK (parse); - gst_matroska_read_common_reset_streams (&parse->common, - GST_CLOCK_TIME_NONE, TRUE); - GST_OBJECT_UNLOCK (parse); - parse->common.segment.last_stop = GST_CLOCK_TIME_NONE; - parse->cluster_time = GST_CLOCK_TIME_NONE; - parse->cluster_offset = 0; - /* fall-through */ - } - default: - res = gst_pad_event_default (pad, event); - break; - } - - return res; -} - -static void -gst_matroska_parse_set_index (GstElement * element, GstIndex * index) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (element); - - GST_OBJECT_LOCK (parse); - if (parse->common.element_index) - gst_object_unref (parse->common.element_index); - parse->common.element_index = index ? gst_object_ref (index) : NULL; - GST_OBJECT_UNLOCK (parse); - GST_DEBUG_OBJECT (parse, "Set index %" GST_PTR_FORMAT, - parse->common.element_index); -} - -static GstIndex * -gst_matroska_parse_get_index (GstElement * element) -{ - GstIndex *result = NULL; - GstMatroskaParse *parse = GST_MATROSKA_PARSE (element); - - GST_OBJECT_LOCK (parse); - if (parse->common.element_index) - result = gst_object_ref (parse->common.element_index); - GST_OBJECT_UNLOCK (parse); - - GST_DEBUG_OBJECT (parse, "Returning index %" GST_PTR_FORMAT, result); - - return result; -} - -static GstStateChangeReturn -gst_matroska_parse_change_state (GstElement * element, - GstStateChange transition) -{ - GstMatroskaParse *parse = GST_MATROSKA_PARSE (element); - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - - /* handle upwards state changes here */ - switch (transition) { - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - /* handle downwards state changes */ - switch (transition) { - case GST_STATE_CHANGE_PAUSED_TO_READY: - gst_matroska_parse_reset (GST_ELEMENT (parse)); - break; - default: - break; - } - - return ret; -} - -gboolean -gst_matroska_parse_plugin_init (GstPlugin * plugin) -{ - gst_riff_init (); - - /* create an elementfactory for the matroska_parse element */ - if (!gst_element_register (plugin, "matroskaparse", - GST_RANK_NONE, GST_TYPE_MATROSKA_PARSE)) - return FALSE; - - return TRUE; -} diff --git a/mobile/gst/matroska/matroska-parse.h b/mobile/gst/matroska/matroska-parse.h deleted file mode 100644 index a447e77..0000000 --- a/mobile/gst/matroska/matroska-parse.h +++ /dev/null @@ -1,106 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2011 Debarshi Ray <rishi@gnu.org> - * - * matroska-parse.h: matroska file/stream parseer definition - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_MATROSKA_PARSE_H__ -#define __GST_MATROSKA_PARSE_H__ - -#include <gst/gst.h> - -#include "ebml-read.h" -#include "matroska-ids.h" -#include "matroska-read-common.h" - -G_BEGIN_DECLS - -#define GST_TYPE_MATROSKA_PARSE \ - (gst_matroska_parse_get_type ()) -#define GST_MATROSKA_PARSE(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_PARSE, GstMatroskaParse)) -#define GST_MATROSKA_PARSE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_PARSE, GstMatroskaParseClass)) -#define GST_IS_MATROSKA_PARSE(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_PARSE)) -#define GST_IS_MATROSKA_PARSE_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_PARSE)) - -typedef struct _GstMatroskaParse { - GstElement parent; - - /* < private > */ - - GstMatroskaReadCommon common; - - /* pads */ - GstPad *srcpad; - GstClock *clock; - guint num_v_streams; - guint num_a_streams; - guint num_t_streams; - - GstBuffer *streamheader; - gboolean pushed_headers; - GstClockTime last_timestamp; - - /* state */ - //gboolean streaming; - guint level_up; - guint64 seek_block; - gboolean seek_first; - - /* did we parse cues/tracks/segmentinfo already? */ - gboolean tracks_parsed; - GList *seek_parsed; - - /* keeping track of playback position */ - gboolean segment_running; - GstClockTime last_stop_end; - - GstEvent *close_segment; - GstEvent *new_segment; - - /* some state saving */ - GstClockTime cluster_time; - guint64 cluster_offset; - guint64 first_cluster_offset; - guint64 next_cluster_offset; - - /* index stuff */ - gboolean seekable; - gboolean building_index; - guint64 index_offset; - GstEvent *seek_event; - gboolean need_newsegment; - - /* reverse playback */ - GArray *seek_index; - gint seek_entry; -} GstMatroskaParse; - -typedef struct _GstMatroskaParseClass { - GstElementClass parent; -} GstMatroskaParseClass; - -gboolean gst_matroska_parse_plugin_init (GstPlugin *plugin); - -G_END_DECLS - -#endif /* __GST_MATROSKA_PARSE_H__ */ diff --git a/mobile/gst/matroska/matroska-read-common.c b/mobile/gst/matroska/matroska-read-common.c deleted file mode 100644 index 1104acc..0000000 --- a/mobile/gst/matroska/matroska-read-common.c +++ /dev/null @@ -1,1951 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2006 Tim-Philipp Müller <tim centricular net> - * (c) 2008 Sebastian Dröge <slomo@circular-chaos.org> - * (c) 2011 Debarshi Ray <rishi@gnu.org> - * - * matroska-read-common.c: shared by matroska file/stream demuxer and parser - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdio.h> -#include <string.h> - -#ifdef HAVE_ZLIB -#include <zlib.h> -#endif - -#ifdef HAVE_BZ2 -#include <bzlib.h> -#endif - -#include <gst/tag/tag.h> -#include <gst/base/gsttypefindhelper.h> - -#include "lzo.h" - -#include "ebml-read.h" -#include "matroska-read-common.h" - -GST_DEBUG_CATEGORY (matroskareadcommon_debug); -#define GST_CAT_DEFAULT matroskareadcommon_debug - -#define DEBUG_ELEMENT_START(common, ebml, element) \ - GST_DEBUG_OBJECT (common, "Parsing " element " element at offset %" \ - G_GUINT64_FORMAT, gst_ebml_read_get_pos (ebml)) - -#define DEBUG_ELEMENT_STOP(common, ebml, element, ret) \ - GST_DEBUG_OBJECT (common, "Parsing " element " element " \ - " finished with '%s'", gst_flow_get_name (ret)) - -static gboolean -gst_matroska_decompress_data (GstMatroskaTrackEncoding * enc, - guint8 ** data_out, guint * size_out, - GstMatroskaTrackCompressionAlgorithm algo) -{ - guint8 *new_data = NULL; - guint new_size = 0; - guint8 *data = *data_out; - guint size = *size_out; - gboolean ret = TRUE; - - if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_ZLIB) { -#ifdef HAVE_ZLIB - /* zlib encoded data */ - z_stream zstream; - guint orig_size; - int result; - - orig_size = size; - zstream.zalloc = (alloc_func) 0; - zstream.zfree = (free_func) 0; - zstream.opaque = (voidpf) 0; - if (inflateInit (&zstream) != Z_OK) { - GST_WARNING ("zlib initialization failed."); - ret = FALSE; - goto out; - } - zstream.next_in = (Bytef *) data; - zstream.avail_in = orig_size; - new_size = orig_size; - new_data = g_malloc (new_size); - zstream.avail_out = new_size; - zstream.next_out = (Bytef *) new_data; - - do { - result = inflate (&zstream, Z_NO_FLUSH); - if (result != Z_OK && result != Z_STREAM_END) { - GST_WARNING ("zlib decompression failed."); - g_free (new_data); - inflateEnd (&zstream); - break; - } - new_size += 4000; - new_data = g_realloc (new_data, new_size); - zstream.next_out = (Bytef *) (new_data + zstream.total_out); - zstream.avail_out += 4000; - } while (zstream.avail_in != 0 && result != Z_STREAM_END); - - if (result != Z_STREAM_END) { - ret = FALSE; - goto out; - } else { - new_size = zstream.total_out; - inflateEnd (&zstream); - } -#else - GST_WARNING ("zlib encoded tracks not supported."); - ret = FALSE; - goto out; -#endif - } else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_BZLIB) { -#ifdef HAVE_BZ2 - /* bzip2 encoded data */ - bz_stream bzstream; - guint orig_size; - int result; - - bzstream.bzalloc = NULL; - bzstream.bzfree = NULL; - bzstream.opaque = NULL; - orig_size = size; - - if (BZ2_bzDecompressInit (&bzstream, 0, 0) != BZ_OK) { - GST_WARNING ("bzip2 initialization failed."); - ret = FALSE; - goto out; - } - - bzstream.next_in = (char *) data; - bzstream.avail_in = orig_size; - new_size = orig_size; - new_data = g_malloc (new_size); - bzstream.avail_out = new_size; - bzstream.next_out = (char *) new_data; - - do { - result = BZ2_bzDecompress (&bzstream); - if (result != BZ_OK && result != BZ_STREAM_END) { - GST_WARNING ("bzip2 decompression failed."); - g_free (new_data); - BZ2_bzDecompressEnd (&bzstream); - break; - } - new_size += 4000; - new_data = g_realloc (new_data, new_size); - bzstream.next_out = (char *) (new_data + bzstream.total_out_lo32); - bzstream.avail_out += 4000; - } while (bzstream.avail_in != 0 && result != BZ_STREAM_END); - - if (result != BZ_STREAM_END) { - ret = FALSE; - goto out; - } else { - new_size = bzstream.total_out_lo32; - BZ2_bzDecompressEnd (&bzstream); - } -#else - GST_WARNING ("bzip2 encoded tracks not supported."); - ret = FALSE; - goto out; -#endif - } else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_LZO1X) { - /* lzo encoded data */ - int result; - int orig_size, out_size; - - orig_size = size; - out_size = size; - new_size = size; - new_data = g_malloc (new_size); - - do { - orig_size = size; - out_size = new_size; - - result = lzo1x_decode (new_data, &out_size, data, &orig_size); - - if (orig_size > 0) { - new_size += 4000; - new_data = g_realloc (new_data, new_size); - } - } while (orig_size > 0 && result == LZO_OUTPUT_FULL); - - new_size -= out_size; - - if (result != LZO_OUTPUT_FULL) { - GST_WARNING ("lzo decompression failed"); - g_free (new_data); - - ret = FALSE; - goto out; - } - - } else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_HEADERSTRIP) { - /* header stripped encoded data */ - if (enc->comp_settings_length > 0) { - new_data = g_malloc (size + enc->comp_settings_length); - new_size = size + enc->comp_settings_length; - - memcpy (new_data, enc->comp_settings, enc->comp_settings_length); - memcpy (new_data + enc->comp_settings_length, data, size); - } - } else { - GST_ERROR ("invalid compression algorithm %d", algo); - ret = FALSE; - } - -out: - - if (!ret) { - *data_out = NULL; - *size_out = 0; - } else { - *data_out = new_data; - *size_out = new_size; - } - - return ret; -} - -GstFlowReturn -gst_matroska_decode_content_encodings (GArray * encodings) -{ - gint i; - - if (encodings == NULL) - return GST_FLOW_OK; - - for (i = 0; i < encodings->len; i++) { - GstMatroskaTrackEncoding *enc = - &g_array_index (encodings, GstMatroskaTrackEncoding, i); - guint8 *data = NULL; - guint size; - - if ((enc->scope & GST_MATROSKA_TRACK_ENCODING_SCOPE_NEXT_CONTENT_ENCODING) - == 0) - continue; - - /* Encryption not supported yet */ - if (enc->type != 0) - return GST_FLOW_ERROR; - - if (i + 1 >= encodings->len) - return GST_FLOW_ERROR; - - if (enc->comp_settings_length == 0) - continue; - - data = enc->comp_settings; - size = enc->comp_settings_length; - - if (!gst_matroska_decompress_data (enc, &data, &size, enc->comp_algo)) - return GST_FLOW_ERROR; - - g_free (enc->comp_settings); - - enc->comp_settings = data; - enc->comp_settings_length = size; - } - - return GST_FLOW_OK; -} - -gboolean -gst_matroska_decode_data (GArray * encodings, guint8 ** data_out, - guint * size_out, GstMatroskaTrackEncodingScope scope, gboolean free) -{ - guint8 *data; - guint size; - gboolean ret = TRUE; - gint i; - - g_return_val_if_fail (encodings != NULL, FALSE); - g_return_val_if_fail (data_out != NULL && *data_out != NULL, FALSE); - g_return_val_if_fail (size_out != NULL, FALSE); - - data = *data_out; - size = *size_out; - - for (i = 0; i < encodings->len; i++) { - GstMatroskaTrackEncoding *enc = - &g_array_index (encodings, GstMatroskaTrackEncoding, i); - guint8 *new_data = NULL; - guint new_size = 0; - - if ((enc->scope & scope) == 0) - continue; - - /* Encryption not supported yet */ - if (enc->type != 0) { - ret = FALSE; - break; - } - - new_data = data; - new_size = size; - - ret = - gst_matroska_decompress_data (enc, &new_data, &new_size, - enc->comp_algo); - - if (!ret) - break; - - if ((data == *data_out && free) || (data != *data_out)) - g_free (data); - - data = new_data; - size = new_size; - } - - if (!ret) { - if ((data == *data_out && free) || (data != *data_out)) - g_free (data); - - *data_out = NULL; - *size_out = 0; - } else { - *data_out = data; - *size_out = size; - } - - return ret; -} - -static gint -gst_matroska_index_compare (GstMatroskaIndex * i1, GstMatroskaIndex * i2) -{ - if (i1->time < i2->time) - return -1; - else if (i1->time > i2->time) - return 1; - else if (i1->block < i2->block) - return -1; - else if (i1->block > i2->block) - return 1; - else - return 0; -} - -gint -gst_matroska_index_seek_find (GstMatroskaIndex * i1, GstClockTime * time, - gpointer user_data) -{ - if (i1->time < *time) - return -1; - else if (i1->time > *time) - return 1; - else - return 0; -} - -GstMatroskaIndex * -gst_matroska_read_common_do_index_seek (GstMatroskaReadCommon * common, - GstMatroskaTrackContext * track, gint64 seek_pos, GArray ** _index, - gint * _entry_index) -{ - GstMatroskaIndex *entry = NULL; - GArray *index; - - if (!common->index || !common->index->len) - return NULL; - - /* find entry just before or at the requested position */ - if (track && track->index_table) - index = track->index_table; - else - index = common->index; - - entry = - gst_util_array_binary_search (index->data, index->len, - sizeof (GstMatroskaIndex), - (GCompareDataFunc) gst_matroska_index_seek_find, GST_SEARCH_MODE_BEFORE, - &seek_pos, NULL); - - if (entry == NULL) - entry = &g_array_index (index, GstMatroskaIndex, 0); - - if (_index) - *_index = index; - if (_entry_index) - *_entry_index = entry - (GstMatroskaIndex *) index->data; - - return entry; -} - -static gint -gst_matroska_read_common_encoding_cmp (GstMatroskaTrackEncoding * a, - GstMatroskaTrackEncoding * b) -{ - if (b->order > a->order) - return 1; - else if (b->order < a->order) - return -1; - else - return 0; -} - -static gboolean -gst_matroska_read_common_encoding_order_unique (GArray * encodings, guint64 - order) -{ - gint i; - - if (encodings == NULL || encodings->len == 0) - return TRUE; - - for (i = 0; i < encodings->len; i++) - if (g_array_index (encodings, GstMatroskaTrackEncoding, i).order == order) - return FALSE; - - return TRUE; -} - -/* takes ownership of taglist */ -void -gst_matroska_read_common_found_global_tag (GstMatroskaReadCommon * common, - GstElement * el, GstTagList * taglist) -{ - if (common->global_tags) { - /* nothing sent yet, add to cache */ - gst_tag_list_insert (common->global_tags, taglist, GST_TAG_MERGE_APPEND); - gst_tag_list_free (taglist); - } else { - /* hm, already sent, no need to cache and wait anymore */ - GST_DEBUG_OBJECT (common, "Sending late global tags %" GST_PTR_FORMAT, - taglist); - gst_element_found_tags (el, taglist); - } -} - -gint64 -gst_matroska_read_common_get_length (GstMatroskaReadCommon * common) -{ - GstFormat fmt = GST_FORMAT_BYTES; - gint64 end = -1; - - if (!gst_pad_query_peer_duration (common->sinkpad, &fmt, &end) || - fmt != GST_FORMAT_BYTES || end < 0) - GST_DEBUG_OBJECT (common, "no upstream length"); - - return end; -} - -/* determine track to seek in */ -GstMatroskaTrackContext * -gst_matroska_read_common_get_seek_track (GstMatroskaReadCommon * common, - GstMatroskaTrackContext * track) -{ - gint i; - - if (track && track->type == GST_MATROSKA_TRACK_TYPE_VIDEO) - return track; - - for (i = 0; i < common->src->len; i++) { - GstMatroskaTrackContext *stream; - - stream = g_ptr_array_index (common->src, i); - if (stream->type == GST_MATROSKA_TRACK_TYPE_VIDEO && stream->index_table) - track = stream; - } - - return track; -} - -/* skip unknown or alike element */ -GstFlowReturn -gst_matroska_read_common_parse_skip (GstMatroskaReadCommon * common, - GstEbmlRead * ebml, const gchar * parent_name, guint id) -{ - if (id == GST_EBML_ID_VOID) { - GST_DEBUG_OBJECT (common, "Skipping EBML Void element"); - } else if (id == GST_EBML_ID_CRC32) { - GST_DEBUG_OBJECT (common, "Skipping EBML CRC32 element"); - } else { - GST_WARNING_OBJECT (common, - "Unknown %s subelement 0x%x - ignoring", parent_name, id); - } - - return gst_ebml_read_skip (ebml); -} - -static GstFlowReturn -gst_matroska_read_common_parse_attached_file (GstMatroskaReadCommon * common, - GstEbmlRead * ebml, GstTagList * taglist) -{ - guint32 id; - GstFlowReturn ret; - gchar *description = NULL; - gchar *filename = NULL; - gchar *mimetype = NULL; - guint8 *data = NULL; - guint64 datalen = 0; - - DEBUG_ELEMENT_START (common, ebml, "AttachedFile"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "AttachedFile", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - /* read all sub-entries */ - - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_FILEDESCRIPTION: - if (description) { - GST_WARNING_OBJECT (common, "FileDescription can only appear once"); - break; - } - - ret = gst_ebml_read_utf8 (ebml, &id, &description); - GST_DEBUG_OBJECT (common, "FileDescription: %s", - GST_STR_NULL (description)); - break; - case GST_MATROSKA_ID_FILENAME: - if (filename) { - GST_WARNING_OBJECT (common, "FileName can only appear once"); - break; - } - - ret = gst_ebml_read_utf8 (ebml, &id, &filename); - - GST_DEBUG_OBJECT (common, "FileName: %s", GST_STR_NULL (filename)); - break; - case GST_MATROSKA_ID_FILEMIMETYPE: - if (mimetype) { - GST_WARNING_OBJECT (common, "FileMimeType can only appear once"); - break; - } - - ret = gst_ebml_read_ascii (ebml, &id, &mimetype); - GST_DEBUG_OBJECT (common, "FileMimeType: %s", GST_STR_NULL (mimetype)); - break; - case GST_MATROSKA_ID_FILEDATA: - if (data) { - GST_WARNING_OBJECT (common, "FileData can only appear once"); - break; - } - - ret = gst_ebml_read_binary (ebml, &id, &data, &datalen); - GST_DEBUG_OBJECT (common, "FileData of size %" G_GUINT64_FORMAT, - datalen); - break; - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, - "AttachedFile", id); - break; - case GST_MATROSKA_ID_FILEUID: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "AttachedFile", ret); - - if (filename && mimetype && data && datalen > 0) { - GstTagImageType image_type = GST_TAG_IMAGE_TYPE_NONE; - GstBuffer *tagbuffer = NULL; - GstCaps *caps; - gchar *filename_lc = g_utf8_strdown (filename, -1); - - GST_DEBUG_OBJECT (common, "Creating tag for attachment with " - "filename '%s', mimetype '%s', description '%s', " - "size %" G_GUINT64_FORMAT, filename, mimetype, - GST_STR_NULL (description), datalen); - - /* TODO: better heuristics for different image types */ - if (strstr (filename_lc, "cover")) { - if (strstr (filename_lc, "back")) - image_type = GST_TAG_IMAGE_TYPE_BACK_COVER; - else - image_type = GST_TAG_IMAGE_TYPE_FRONT_COVER; - } else if (g_str_has_prefix (mimetype, "image/") || - g_str_has_suffix (filename_lc, "png") || - g_str_has_suffix (filename_lc, "jpg") || - g_str_has_suffix (filename_lc, "jpeg") || - g_str_has_suffix (filename_lc, "gif") || - g_str_has_suffix (filename_lc, "bmp")) { - image_type = GST_TAG_IMAGE_TYPE_UNDEFINED; - } - g_free (filename_lc); - - /* First try to create an image tag buffer from this */ - if (image_type != GST_TAG_IMAGE_TYPE_NONE) { - tagbuffer = - gst_tag_image_data_to_image_buffer (data, datalen, image_type); - - if (!tagbuffer) - image_type = GST_TAG_IMAGE_TYPE_NONE; - } - - /* if this failed create an attachment buffer */ - if (!tagbuffer) { - tagbuffer = gst_buffer_new_and_alloc (datalen); - - memcpy (GST_BUFFER_DATA (tagbuffer), data, datalen); - GST_BUFFER_SIZE (tagbuffer) = datalen; - - caps = gst_type_find_helper_for_buffer (NULL, tagbuffer, NULL); - if (caps == NULL) - caps = gst_caps_new_simple (mimetype, NULL); - gst_buffer_set_caps (tagbuffer, caps); - gst_caps_unref (caps); - } - - /* Set filename and description on the caps */ - caps = GST_BUFFER_CAPS (tagbuffer); - gst_caps_set_simple (caps, "filename", G_TYPE_STRING, filename, NULL); - if (description) - gst_caps_set_simple (caps, "description", G_TYPE_STRING, description, - NULL); - - GST_DEBUG_OBJECT (common, - "Created attachment buffer with caps: %" GST_PTR_FORMAT, caps); - - /* and append to the tag list */ - if (image_type != GST_TAG_IMAGE_TYPE_NONE) - gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_IMAGE, tagbuffer, - NULL); - else - gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_ATTACHMENT, - tagbuffer, NULL); - - /* the tag list adds it own ref */ - gst_buffer_unref (tagbuffer); - } - - g_free (filename); - g_free (mimetype); - g_free (data); - g_free (description); - - return ret; -} - -GstFlowReturn -gst_matroska_read_common_parse_attachments (GstMatroskaReadCommon * common, - GstElement * el, GstEbmlRead * ebml) -{ - guint32 id; - GstFlowReturn ret = GST_FLOW_OK; - GstTagList *taglist; - - DEBUG_ELEMENT_START (common, ebml, "Attachments"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "Attachments", ret); - return ret; - } - - taglist = gst_tag_list_new (); - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_ATTACHEDFILE: - ret = gst_matroska_read_common_parse_attached_file (common, ebml, - taglist); - break; - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, - "Attachments", id); - break; - } - } - DEBUG_ELEMENT_STOP (common, ebml, "Attachments", ret); - - if (gst_structure_n_fields (GST_STRUCTURE (taglist)) > 0) { - GST_DEBUG_OBJECT (common, "Storing attachment tags"); - gst_matroska_read_common_found_global_tag (common, el, taglist); - } else { - GST_DEBUG_OBJECT (common, "No valid attachments found"); - gst_tag_list_free (taglist); - } - - common->attachments_parsed = TRUE; - - return ret; -} - -GstFlowReturn -gst_matroska_read_common_parse_chapters (GstMatroskaReadCommon * common, - GstEbmlRead * ebml) -{ - guint32 id; - GstFlowReturn ret = GST_FLOW_OK; - - GST_WARNING_OBJECT (common, "Parsing of chapters not implemented yet"); - - /* TODO: implement parsing of chapters */ - - DEBUG_ELEMENT_START (common, ebml, "Chapters"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "Chapters", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - default: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "Chapters", ret); - return ret; -} - -GstFlowReturn -gst_matroska_read_common_parse_header (GstMatroskaReadCommon * common, - GstEbmlRead * ebml) -{ - GstFlowReturn ret; - gchar *doctype; - guint version; - guint32 id; - - /* this function is the first to be called */ - - /* default init */ - doctype = NULL; - version = 1; - - ret = gst_ebml_peek_id (ebml, &id); - if (ret != GST_FLOW_OK) - return ret; - - GST_DEBUG_OBJECT (common, "id: %08x", id); - - if (id != GST_EBML_ID_HEADER) { - GST_ERROR_OBJECT (common, "Failed to read header"); - goto exit; - } - - ret = gst_ebml_read_master (ebml, &id); - if (ret != GST_FLOW_OK) - return ret; - - while (gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - ret = gst_ebml_peek_id (ebml, &id); - if (ret != GST_FLOW_OK) - return ret; - - switch (id) { - /* is our read version uptodate? */ - case GST_EBML_ID_EBMLREADVERSION:{ - guint64 num; - - ret = gst_ebml_read_uint (ebml, &id, &num); - if (ret != GST_FLOW_OK) - return ret; - if (num != GST_EBML_VERSION) { - GST_ERROR_OBJECT (ebml, "Unsupported EBML version %" G_GUINT64_FORMAT, - num); - return GST_FLOW_ERROR; - } - - GST_DEBUG_OBJECT (ebml, "EbmlReadVersion: %" G_GUINT64_FORMAT, num); - break; - } - - /* we only handle 8 byte lengths at max */ - case GST_EBML_ID_EBMLMAXSIZELENGTH:{ - guint64 num; - - ret = gst_ebml_read_uint (ebml, &id, &num); - if (ret != GST_FLOW_OK) - return ret; - if (num > sizeof (guint64)) { - GST_ERROR_OBJECT (ebml, - "Unsupported EBML maximum size %" G_GUINT64_FORMAT, num); - return GST_FLOW_ERROR; - } - GST_DEBUG_OBJECT (ebml, "EbmlMaxSizeLength: %" G_GUINT64_FORMAT, num); - break; - } - - /* we handle 4 byte IDs at max */ - case GST_EBML_ID_EBMLMAXIDLENGTH:{ - guint64 num; - - ret = gst_ebml_read_uint (ebml, &id, &num); - if (ret != GST_FLOW_OK) - return ret; - if (num > sizeof (guint32)) { - GST_ERROR_OBJECT (ebml, - "Unsupported EBML maximum ID %" G_GUINT64_FORMAT, num); - return GST_FLOW_ERROR; - } - GST_DEBUG_OBJECT (ebml, "EbmlMaxIdLength: %" G_GUINT64_FORMAT, num); - break; - } - - case GST_EBML_ID_DOCTYPE:{ - gchar *text; - - ret = gst_ebml_read_ascii (ebml, &id, &text); - if (ret != GST_FLOW_OK) - return ret; - - GST_DEBUG_OBJECT (ebml, "EbmlDocType: %s", GST_STR_NULL (text)); - - if (doctype) - g_free (doctype); - doctype = text; - break; - } - - case GST_EBML_ID_DOCTYPEREADVERSION:{ - guint64 num; - - ret = gst_ebml_read_uint (ebml, &id, &num); - if (ret != GST_FLOW_OK) - return ret; - version = num; - GST_DEBUG_OBJECT (ebml, "EbmlReadVersion: %" G_GUINT64_FORMAT, num); - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, - "EBML header", id); - if (ret != GST_FLOW_OK) - return ret; - break; - - /* we ignore these two, as they don't tell us anything we care about */ - case GST_EBML_ID_EBMLVERSION: - case GST_EBML_ID_DOCTYPEVERSION: - ret = gst_ebml_read_skip (ebml); - if (ret != GST_FLOW_OK) - return ret; - break; - } - } - -exit: - - if ((doctype != NULL && !strcmp (doctype, GST_MATROSKA_DOCTYPE_MATROSKA)) || - (doctype != NULL && !strcmp (doctype, GST_MATROSKA_DOCTYPE_WEBM)) || - (doctype == NULL)) { - if (version <= 2) { - if (doctype) { - GST_INFO_OBJECT (common, "Input is %s version %d", doctype, version); - } else { - GST_WARNING_OBJECT (common, "Input is EBML without doctype, assuming " - "matroska (version %d)", version); - } - ret = GST_FLOW_OK; - } else { - GST_ELEMENT_ERROR (common, STREAM, DEMUX, (NULL), - ("Demuxer version (2) is too old to read %s version %d", - GST_STR_NULL (doctype), version)); - ret = GST_FLOW_ERROR; - } - g_free (doctype); - } else { - GST_ELEMENT_ERROR (common, STREAM, WRONG_TYPE, (NULL), - ("Input is not a matroska stream (doctype=%s)", doctype)); - ret = GST_FLOW_ERROR; - g_free (doctype); - } - - return ret; -} - -static GstFlowReturn -gst_matroska_read_common_parse_index_cuetrack (GstMatroskaReadCommon * common, - GstEbmlRead * ebml, guint * nentries) -{ - guint32 id; - GstFlowReturn ret; - GstMatroskaIndex idx; - - idx.pos = (guint64) - 1; - idx.track = 0; - idx.time = GST_CLOCK_TIME_NONE; - idx.block = 1; - - DEBUG_ELEMENT_START (common, ebml, "CueTrackPositions"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "CueTrackPositions", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* track number */ - case GST_MATROSKA_ID_CUETRACK: - { - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - idx.track = 0; - GST_WARNING_OBJECT (common, "Invalid CueTrack 0"); - break; - } - - GST_DEBUG_OBJECT (common, "CueTrack: %" G_GUINT64_FORMAT, num); - idx.track = num; - break; - } - - /* position in file */ - case GST_MATROSKA_ID_CUECLUSTERPOSITION: - { - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num > G_MAXINT64) { - GST_WARNING_OBJECT (common, "CueClusterPosition %" G_GUINT64_FORMAT - " too large", num); - break; - } - - idx.pos = num; - break; - } - - /* number of block in the cluster */ - case GST_MATROSKA_ID_CUEBLOCKNUMBER: - { - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num == 0) { - GST_WARNING_OBJECT (common, "Invalid CueBlockNumber 0"); - break; - } - - GST_DEBUG_OBJECT (common, "CueBlockNumber: %" G_GUINT64_FORMAT, num); - idx.block = num; - - /* mild sanity check, disregard strange cases ... */ - if (idx.block > G_MAXUINT16) { - GST_DEBUG_OBJECT (common, "... looks suspicious, ignoring"); - idx.block = 1; - } - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, - "CueTrackPositions", id); - break; - - case GST_MATROSKA_ID_CUECODECSTATE: - case GST_MATROSKA_ID_CUEREFERENCE: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "CueTrackPositions", ret); - - /* (e.g.) lavf typically creates entries without a block number, - * which is bogus and leads to contradictory information */ - if (common->index->len) { - GstMatroskaIndex *last_idx; - - last_idx = &g_array_index (common->index, GstMatroskaIndex, - common->index->len - 1); - if (last_idx->block == idx.block && last_idx->pos == idx.pos && - last_idx->track == idx.track && idx.time > last_idx->time) { - GST_DEBUG_OBJECT (common, "Cue entry refers to same location, " - "but has different time than previous entry; discarding"); - idx.track = 0; - } - } - - if ((ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED) - && idx.pos != (guint64) - 1 && idx.track > 0) { - g_array_append_val (common->index, idx); - (*nentries)++; - } else if (ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED) { - GST_DEBUG_OBJECT (common, "CueTrackPositions without valid content"); - } - - return ret; -} - -static GstFlowReturn -gst_matroska_read_common_parse_index_pointentry (GstMatroskaReadCommon * - common, GstEbmlRead * ebml) -{ - guint32 id; - GstFlowReturn ret; - GstClockTime time = GST_CLOCK_TIME_NONE; - guint nentries = 0; - - DEBUG_ELEMENT_START (common, ebml, "CuePoint"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "CuePoint", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* one single index entry ('point') */ - case GST_MATROSKA_ID_CUETIME: - { - if ((ret = gst_ebml_read_uint (ebml, &id, &time)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (common, "CueTime: %" G_GUINT64_FORMAT, time); - time = time * common->time_scale; - break; - } - - /* position in the file + track to which it belongs */ - case GST_MATROSKA_ID_CUETRACKPOSITIONS: - { - if ((ret = - gst_matroska_read_common_parse_index_cuetrack (common, ebml, - &nentries)) != GST_FLOW_OK) - break; - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, "CuePoint", - id); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "CuePoint", ret); - - if (nentries > 0) { - if (time == GST_CLOCK_TIME_NONE) { - GST_WARNING_OBJECT (common, "CuePoint without valid time"); - g_array_remove_range (common->index, common->index->len - nentries, - nentries); - } else { - gint i; - - for (i = common->index->len - nentries; i < common->index->len; i++) { - GstMatroskaIndex *idx = - &g_array_index (common->index, GstMatroskaIndex, i); - - idx->time = time; - GST_DEBUG_OBJECT (common, "Index entry: pos=%" G_GUINT64_FORMAT - ", time=%" GST_TIME_FORMAT ", track=%u, block=%u", idx->pos, - GST_TIME_ARGS (idx->time), (guint) idx->track, (guint) idx->block); - } - } - } else { - GST_DEBUG_OBJECT (common, "Empty CuePoint"); - } - - return ret; -} - -gint -gst_matroska_read_common_stream_from_num (GstMatroskaReadCommon * common, - guint track_num) -{ - guint n; - - g_assert (common->src->len == common->num_streams); - for (n = 0; n < common->src->len; n++) { - GstMatroskaTrackContext *context = g_ptr_array_index (common->src, n); - - if (context->num == track_num) { - return n; - } - } - - if (n == common->num_streams) - GST_WARNING_OBJECT (common, - "Failed to find corresponding pad for tracknum %d", track_num); - - return -1; -} - -GstFlowReturn -gst_matroska_read_common_parse_index (GstMatroskaReadCommon * common, - GstEbmlRead * ebml) -{ - guint32 id; - GstFlowReturn ret = GST_FLOW_OK; - guint i; - - if (common->index) - g_array_free (common->index, TRUE); - common->index = - g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaIndex), 128); - - DEBUG_ELEMENT_START (common, ebml, "Cues"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "Cues", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* one single index entry ('point') */ - case GST_MATROSKA_ID_POINTENTRY: - ret = gst_matroska_read_common_parse_index_pointentry (common, ebml); - break; - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, "Cues", id); - break; - } - } - DEBUG_ELEMENT_STOP (common, ebml, "Cues", ret); - - /* Sort index by time, smallest time first, for easier searching */ - g_array_sort (common->index, (GCompareFunc) gst_matroska_index_compare); - - /* Now sort the track specific index entries into their own arrays */ - for (i = 0; i < common->index->len; i++) { - GstMatroskaIndex *idx = &g_array_index (common->index, GstMatroskaIndex, - i); - gint track_num; - GstMatroskaTrackContext *ctx; - - if (common->element_index) { - gint writer_id; - - if (idx->track != 0 && - (track_num = - gst_matroska_read_common_stream_from_num (common, - idx->track)) != -1) { - ctx = g_ptr_array_index (common->src, track_num); - - if (ctx->index_writer_id == -1) - gst_index_get_writer_id (common->element_index, - GST_OBJECT (ctx->pad), &ctx->index_writer_id); - writer_id = ctx->index_writer_id; - } else { - if (common->element_index_writer_id == -1) - gst_index_get_writer_id (common->element_index, GST_OBJECT (common), - &common->element_index_writer_id); - writer_id = common->element_index_writer_id; - } - - GST_LOG_OBJECT (common, "adding association %" GST_TIME_FORMAT "-> %" - G_GUINT64_FORMAT " for writer id %d", GST_TIME_ARGS (idx->time), - idx->pos, writer_id); - gst_index_add_association (common->element_index, writer_id, - GST_ASSOCIATION_FLAG_KEY_UNIT, GST_FORMAT_TIME, idx->time, - GST_FORMAT_BYTES, idx->pos + common->ebml_segment_start, NULL); - } - - if (idx->track == 0) - continue; - - track_num = gst_matroska_read_common_stream_from_num (common, idx->track); - if (track_num == -1) - continue; - - ctx = g_ptr_array_index (common->src, track_num); - - if (ctx->index_table == NULL) - ctx->index_table = - g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaIndex), 128); - - g_array_append_vals (ctx->index_table, idx, 1); - } - - common->index_parsed = TRUE; - - /* sanity check; empty index normalizes to no index */ - if (common->index->len == 0) { - g_array_free (common->index, TRUE); - common->index = NULL; - } - - return ret; -} - -GstFlowReturn -gst_matroska_read_common_parse_info (GstMatroskaReadCommon * common, - GstElement * el, GstEbmlRead * ebml) -{ - GstFlowReturn ret = GST_FLOW_OK; - gdouble dur_f = -1.0; - guint32 id; - - DEBUG_ELEMENT_START (common, ebml, "SegmentInfo"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "SegmentInfo", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - /* cluster timecode */ - case GST_MATROSKA_ID_TIMECODESCALE:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - - GST_DEBUG_OBJECT (common, "TimeCodeScale: %" G_GUINT64_FORMAT, num); - common->time_scale = num; - break; - } - - case GST_MATROSKA_ID_DURATION:{ - if ((ret = gst_ebml_read_float (ebml, &id, &dur_f)) != GST_FLOW_OK) - break; - - if (dur_f <= 0.0) { - GST_WARNING_OBJECT (common, "Invalid duration %lf", dur_f); - break; - } - - GST_DEBUG_OBJECT (common, "Duration: %lf", dur_f); - break; - } - - case GST_MATROSKA_ID_WRITINGAPP:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (common, "WritingApp: %s", GST_STR_NULL (text)); - common->writing_app = text; - break; - } - - case GST_MATROSKA_ID_MUXINGAPP:{ - gchar *text; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (common, "MuxingApp: %s", GST_STR_NULL (text)); - common->muxing_app = text; - break; - } - - case GST_MATROSKA_ID_DATEUTC:{ - gint64 time; - - if ((ret = gst_ebml_read_date (ebml, &id, &time)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (common, "DateUTC: %" G_GINT64_FORMAT, time); - common->created = time; - break; - } - - case GST_MATROSKA_ID_TITLE:{ - gchar *text; - GstTagList *taglist; - - if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK) - break; - - GST_DEBUG_OBJECT (common, "Title: %s", GST_STR_NULL (text)); - taglist = gst_tag_list_new (); - gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_TITLE, text, - NULL); - gst_matroska_read_common_found_global_tag (common, el, taglist); - g_free (text); - break; - } - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, - "SegmentInfo", id); - break; - - /* fall through */ - case GST_MATROSKA_ID_SEGMENTUID: - case GST_MATROSKA_ID_SEGMENTFILENAME: - case GST_MATROSKA_ID_PREVUID: - case GST_MATROSKA_ID_PREVFILENAME: - case GST_MATROSKA_ID_NEXTUID: - case GST_MATROSKA_ID_NEXTFILENAME: - case GST_MATROSKA_ID_SEGMENTFAMILY: - case GST_MATROSKA_ID_CHAPTERTRANSLATE: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - if (dur_f > 0.0) { - GstClockTime dur_u; - - dur_u = gst_gdouble_to_guint64 (dur_f * - gst_guint64_to_gdouble (common->time_scale)); - if (GST_CLOCK_TIME_IS_VALID (dur_u) && dur_u <= G_MAXINT64) - gst_segment_set_duration (&common->segment, GST_FORMAT_TIME, dur_u); - } - - DEBUG_ELEMENT_STOP (common, ebml, "SegmentInfo", ret); - - common->segmentinfo_parsed = TRUE; - - return ret; -} - -static GstFlowReturn -gst_matroska_read_common_parse_metadata_id_simple_tag (GstMatroskaReadCommon * - common, GstEbmlRead * ebml, GstTagList ** p_taglist) -{ - /* FIXME: check if there are more useful mappings */ - static const struct - { - const gchar *matroska_tagname; - const gchar *gstreamer_tagname; - } - tag_conv[] = { - { - GST_MATROSKA_TAG_ID_TITLE, GST_TAG_TITLE}, { - GST_MATROSKA_TAG_ID_ARTIST, GST_TAG_ARTIST}, { - GST_MATROSKA_TAG_ID_AUTHOR, GST_TAG_ARTIST}, { - GST_MATROSKA_TAG_ID_ALBUM, GST_TAG_ALBUM}, { - GST_MATROSKA_TAG_ID_COMMENTS, GST_TAG_COMMENT}, { - GST_MATROSKA_TAG_ID_BITSPS, GST_TAG_BITRATE}, { - GST_MATROSKA_TAG_ID_BPS, GST_TAG_BITRATE}, { - GST_MATROSKA_TAG_ID_ENCODER, GST_TAG_ENCODER}, { - GST_MATROSKA_TAG_ID_DATE, GST_TAG_DATE}, { - GST_MATROSKA_TAG_ID_ISRC, GST_TAG_ISRC}, { - GST_MATROSKA_TAG_ID_COPYRIGHT, GST_TAG_COPYRIGHT}, { - GST_MATROSKA_TAG_ID_BPM, GST_TAG_BEATS_PER_MINUTE}, { - GST_MATROSKA_TAG_ID_TERMS_OF_USE, GST_TAG_LICENSE}, { - GST_MATROSKA_TAG_ID_COMPOSER, GST_TAG_COMPOSER}, { - GST_MATROSKA_TAG_ID_LEAD_PERFORMER, GST_TAG_PERFORMER}, { - GST_MATROSKA_TAG_ID_GENRE, GST_TAG_GENRE} - }; - GstFlowReturn ret; - guint32 id; - gchar *value = NULL; - gchar *tag = NULL; - - DEBUG_ELEMENT_START (common, ebml, "SimpleTag"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "SimpleTag", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - /* read all sub-entries */ - - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_TAGNAME: - g_free (tag); - tag = NULL; - ret = gst_ebml_read_ascii (ebml, &id, &tag); - GST_DEBUG_OBJECT (common, "TagName: %s", GST_STR_NULL (tag)); - break; - - case GST_MATROSKA_ID_TAGSTRING: - g_free (value); - value = NULL; - ret = gst_ebml_read_utf8 (ebml, &id, &value); - GST_DEBUG_OBJECT (common, "TagString: %s", GST_STR_NULL (value)); - break; - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, "SimpleTag", - id); - break; - /* fall-through */ - - case GST_MATROSKA_ID_TAGLANGUAGE: - case GST_MATROSKA_ID_TAGDEFAULT: - case GST_MATROSKA_ID_TAGBINARY: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "SimpleTag", ret); - - if (tag && value) { - guint i; - - for (i = 0; i < G_N_ELEMENTS (tag_conv); i++) { - const gchar *tagname_gst = tag_conv[i].gstreamer_tagname; - - const gchar *tagname_mkv = tag_conv[i].matroska_tagname; - - if (strcmp (tagname_mkv, tag) == 0) { - GValue dest = { 0, }; - GType dest_type = gst_tag_get_type (tagname_gst); - - /* Ensure that any date string is complete */ - if (dest_type == GST_TYPE_DATE) { - guint year = 1901, month = 1, day = 1; - - /* Dates can be yyyy-MM-dd, yyyy-MM or yyyy, but we need - * the first type */ - if (sscanf (value, "%04u-%02u-%02u", &year, &month, &day) != 0) { - g_free (value); - value = g_strdup_printf ("%04u-%02u-%02u", year, month, day); - } - } - - g_value_init (&dest, dest_type); - if (gst_value_deserialize (&dest, value)) { - gst_tag_list_add_values (*p_taglist, GST_TAG_MERGE_APPEND, - tagname_gst, &dest, NULL); - } else { - GST_WARNING_OBJECT (common, "Can't transform tag '%s' with " - "value '%s' to target type '%s'", tag, value, - g_type_name (dest_type)); - } - g_value_unset (&dest); - break; - } - } - } - - g_free (tag); - g_free (value); - - return ret; -} - -static GstFlowReturn -gst_matroska_read_common_parse_metadata_id_tag (GstMatroskaReadCommon * common, - GstEbmlRead * ebml, GstTagList ** p_taglist) -{ - guint32 id; - GstFlowReturn ret; - - DEBUG_ELEMENT_START (common, ebml, "Tag"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "Tag", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - /* read all sub-entries */ - - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_SIMPLETAG: - ret = gst_matroska_read_common_parse_metadata_id_simple_tag (common, - ebml, p_taglist); - break; - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, "Tag", id); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "Tag", ret); - - return ret; -} - -GstFlowReturn -gst_matroska_read_common_parse_metadata (GstMatroskaReadCommon * common, - GstElement * el, GstEbmlRead * ebml) -{ - GstTagList *taglist; - GstFlowReturn ret = GST_FLOW_OK; - guint32 id; - GList *l; - guint64 curpos; - - curpos = gst_ebml_read_get_pos (ebml); - - /* Make sure we don't parse a tags element twice and - * post it's tags twice */ - curpos = gst_ebml_read_get_pos (ebml); - for (l = common->tags_parsed; l; l = l->next) { - guint64 *pos = l->data; - - if (*pos == curpos) { - GST_DEBUG_OBJECT (common, "Skipping already parsed Tags at offset %" - G_GUINT64_FORMAT, curpos); - return GST_FLOW_OK; - } - } - - common->tags_parsed = - g_list_prepend (common->tags_parsed, g_slice_new (guint64)); - *((guint64 *) common->tags_parsed->data) = curpos; - /* fall-through */ - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "Tags", ret); - return ret; - } - - taglist = gst_tag_list_new (); - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_TAG: - ret = gst_matroska_read_common_parse_metadata_id_tag (common, ebml, - &taglist); - break; - - default: - ret = gst_matroska_read_common_parse_skip (common, ebml, "Tags", id); - break; - /* FIXME: Use to limit the tags to specific pads */ - case GST_MATROSKA_ID_TARGETS: - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "Tags", ret); - - gst_matroska_read_common_found_global_tag (common, el, taglist); - - return ret; -} - -static GstFlowReturn -gst_matroska_read_common_peek_adapter (GstMatroskaReadCommon * common, guint - peek, const guint8 ** data) -{ - *data = gst_adapter_peek (common->adapter, peek); - if (*data == NULL) - return GST_FLOW_UNEXPECTED; - - return GST_FLOW_OK; -} - -/* - * Calls pull_range for (offset,size) without advancing our offset - */ -GstFlowReturn -gst_matroska_read_common_peek_bytes (GstMatroskaReadCommon * common, guint64 - offset, guint size, GstBuffer ** p_buf, guint8 ** bytes) -{ - GstFlowReturn ret; - - /* Caching here actually makes much less difference than one would expect. - * We do it mainly to avoid pulling buffers of 1 byte all the time */ - if (common->cached_buffer) { - guint64 cache_offset = GST_BUFFER_OFFSET (common->cached_buffer); - guint cache_size = GST_BUFFER_SIZE (common->cached_buffer); - - if (cache_offset <= common->offset && - (common->offset + size) <= (cache_offset + cache_size)) { - if (p_buf) - *p_buf = gst_buffer_create_sub (common->cached_buffer, - common->offset - cache_offset, size); - if (bytes) - *bytes = GST_BUFFER_DATA (common->cached_buffer) + common->offset - - cache_offset; - return GST_FLOW_OK; - } - /* not enough data in the cache, free cache and get a new one */ - gst_buffer_unref (common->cached_buffer); - common->cached_buffer = NULL; - } - - /* refill the cache */ - ret = gst_pad_pull_range (common->sinkpad, common->offset, - MAX (size, 64 * 1024), &common->cached_buffer); - if (ret != GST_FLOW_OK) { - common->cached_buffer = NULL; - return ret; - } - - if (GST_BUFFER_SIZE (common->cached_buffer) >= size) { - if (p_buf) - *p_buf = gst_buffer_create_sub (common->cached_buffer, 0, size); - if (bytes) - *bytes = GST_BUFFER_DATA (common->cached_buffer); - return GST_FLOW_OK; - } - - /* Not possible to get enough data, try a last time with - * requesting exactly the size we need */ - gst_buffer_unref (common->cached_buffer); - common->cached_buffer = NULL; - - ret = - gst_pad_pull_range (common->sinkpad, common->offset, size, - &common->cached_buffer); - if (ret != GST_FLOW_OK) { - GST_DEBUG_OBJECT (common, "pull_range returned %d", ret); - if (p_buf) - *p_buf = NULL; - if (bytes) - *bytes = NULL; - return ret; - } - - if (GST_BUFFER_SIZE (common->cached_buffer) < size) { - GST_WARNING_OBJECT (common, "Dropping short buffer at offset %" - G_GUINT64_FORMAT ": wanted %u bytes, got %u bytes", common->offset, - size, GST_BUFFER_SIZE (common->cached_buffer)); - - gst_buffer_unref (common->cached_buffer); - common->cached_buffer = NULL; - if (p_buf) - *p_buf = NULL; - if (bytes) - *bytes = NULL; - return GST_FLOW_UNEXPECTED; - } - - if (p_buf) - *p_buf = gst_buffer_create_sub (common->cached_buffer, 0, size); - if (bytes) - *bytes = GST_BUFFER_DATA (common->cached_buffer); - - return GST_FLOW_OK; -} - -static GstFlowReturn -gst_matroska_read_common_peek_pull (GstMatroskaReadCommon * common, guint peek, - guint8 ** data) -{ - return gst_matroska_read_common_peek_bytes (common, common->offset, peek, - NULL, data); -} - -GstFlowReturn -gst_matroska_read_common_peek_id_length_pull (GstMatroskaReadCommon * common, - GstElement * el, guint32 * _id, guint64 * _length, guint * _needed) -{ - return gst_ebml_peek_id_length (_id, _length, _needed, - (GstPeekData) gst_matroska_read_common_peek_pull, (gpointer) common, el, - common->offset); -} - -GstFlowReturn -gst_matroska_read_common_peek_id_length_push (GstMatroskaReadCommon * common, - GstElement * el, guint32 * _id, guint64 * _length, guint * _needed) -{ - return gst_ebml_peek_id_length (_id, _length, _needed, - (GstPeekData) gst_matroska_read_common_peek_adapter, (gpointer) common, - el, common->offset); -} - -static GstFlowReturn -gst_matroska_read_common_read_track_encoding (GstMatroskaReadCommon * common, - GstEbmlRead * ebml, GstMatroskaTrackContext * context) -{ - GstMatroskaTrackEncoding enc = { 0, }; - GstFlowReturn ret; - guint32 id; - - DEBUG_ELEMENT_START (common, ebml, "ContentEncoding"); - /* Set default values */ - enc.scope = 1; - /* All other default values are 0 */ - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "ContentEncoding", ret); - return ret; - } - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_CONTENTENCODINGORDER:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (!gst_matroska_read_common_encoding_order_unique (context->encodings, - num)) { - GST_ERROR_OBJECT (common, "ContentEncodingOrder %" G_GUINT64_FORMAT - "is not unique for track %d", num, context->num); - ret = GST_FLOW_ERROR; - break; - } - - GST_DEBUG_OBJECT (common, "ContentEncodingOrder: %" G_GUINT64_FORMAT, - num); - enc.order = num; - break; - } - case GST_MATROSKA_ID_CONTENTENCODINGSCOPE:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num > 7 && num == 0) { - GST_ERROR_OBJECT (common, "Invalid ContentEncodingScope %" - G_GUINT64_FORMAT, num); - ret = GST_FLOW_ERROR; - break; - } - - GST_DEBUG_OBJECT (common, "ContentEncodingScope: %" G_GUINT64_FORMAT, - num); - enc.scope = num; - - break; - } - case GST_MATROSKA_ID_CONTENTENCODINGTYPE:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) - break; - - if (num > 1) { - GST_ERROR_OBJECT (common, "Invalid ContentEncodingType %" - G_GUINT64_FORMAT, num); - ret = GST_FLOW_ERROR; - break; - } else if (num != 0) { - GST_ERROR_OBJECT (common, "Encrypted tracks are not supported yet"); - ret = GST_FLOW_ERROR; - break; - } - GST_DEBUG_OBJECT (common, "ContentEncodingType: %" G_GUINT64_FORMAT, - num); - enc.type = num; - break; - } - case GST_MATROSKA_ID_CONTENTCOMPRESSION:{ - - DEBUG_ELEMENT_START (common, ebml, "ContentCompression"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) - break; - - while (ret == GST_FLOW_OK && - gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_CONTENTCOMPALGO:{ - guint64 num; - - if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) { - break; - } - if (num > 3) { - GST_ERROR_OBJECT (common, "Invalid ContentCompAlgo %" - G_GUINT64_FORMAT, num); - ret = GST_FLOW_ERROR; - break; - } - GST_DEBUG_OBJECT (common, "ContentCompAlgo: %" G_GUINT64_FORMAT, - num); - enc.comp_algo = num; - - break; - } - case GST_MATROSKA_ID_CONTENTCOMPSETTINGS:{ - guint8 *data; - guint64 size; - - if ((ret = - gst_ebml_read_binary (ebml, &id, &data, - &size)) != GST_FLOW_OK) { - break; - } - enc.comp_settings = data; - enc.comp_settings_length = size; - GST_DEBUG_OBJECT (common, - "ContentCompSettings of size %" G_GUINT64_FORMAT, size); - break; - } - default: - GST_WARNING_OBJECT (common, - "Unknown ContentCompression subelement 0x%x - ignoring", id); - ret = gst_ebml_read_skip (ebml); - break; - } - } - DEBUG_ELEMENT_STOP (common, ebml, "ContentCompression", ret); - break; - } - - case GST_MATROSKA_ID_CONTENTENCRYPTION: - GST_ERROR_OBJECT (common, "Encrypted tracks not yet supported"); - gst_ebml_read_skip (ebml); - ret = GST_FLOW_ERROR; - break; - default: - GST_WARNING_OBJECT (common, - "Unknown ContentEncoding subelement 0x%x - ignoring", id); - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "ContentEncoding", ret); - if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED) - return ret; - - /* TODO: Check if the combination of values is valid */ - - g_array_append_val (context->encodings, enc); - - return ret; -} - -GstFlowReturn -gst_matroska_read_common_read_track_encodings (GstMatroskaReadCommon * common, - GstEbmlRead * ebml, GstMatroskaTrackContext * context) -{ - GstFlowReturn ret; - guint32 id; - - DEBUG_ELEMENT_START (common, ebml, "ContentEncodings"); - - if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) { - DEBUG_ELEMENT_STOP (common, ebml, "ContentEncodings", ret); - return ret; - } - - context->encodings = - g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaTrackEncoding), 1); - - while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) { - if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK) - break; - - switch (id) { - case GST_MATROSKA_ID_CONTENTENCODING: - ret = gst_matroska_read_common_read_track_encoding (common, ebml, - context); - break; - default: - GST_WARNING_OBJECT (common, - "Unknown ContentEncodings subelement 0x%x - ignoring", id); - ret = gst_ebml_read_skip (ebml); - break; - } - } - - DEBUG_ELEMENT_STOP (common, ebml, "ContentEncodings", ret); - if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED) - return ret; - - /* Sort encodings according to their order */ - g_array_sort (context->encodings, - (GCompareFunc) gst_matroska_read_common_encoding_cmp); - - return gst_matroska_decode_content_encodings (context->encodings); -} - -/* call with object lock held */ -void -gst_matroska_read_common_reset_streams (GstMatroskaReadCommon * common, - GstClockTime time, gboolean full) -{ - gint i; - - GST_DEBUG_OBJECT (common, "resetting stream state"); - - g_assert (common->src->len == common->num_streams); - for (i = 0; i < common->src->len; i++) { - GstMatroskaTrackContext *context = g_ptr_array_index (common->src, i); - context->pos = time; - context->set_discont = TRUE; - context->eos = FALSE; - context->from_time = GST_CLOCK_TIME_NONE; - -#ifdef MKV_DEMUX_MODIFICATION - context->found_next_kframe = FALSE; - context->num_frames_bw_keyframes = 0; - context->avg_duration_bw_keyframes = GST_CLOCK_TIME_NONE; - context->frames_to_show_bw_keyframes = 0; - context->prev_kframe_timestamp = GST_CLOCK_TIME_NONE; - context->next_kframe_timestamp = GST_CLOCK_TIME_NONE; - context->last_ts = GST_CLOCK_TIME_NONE; -#endif - - if (full) - context->last_flow = GST_FLOW_OK; - if (context->type == GST_MATROSKA_TRACK_TYPE_VIDEO) { - GstMatroskaTrackVideoContext *videocontext = - (GstMatroskaTrackVideoContext *) context; - /* demux object lock held by caller */ - videocontext->earliest_time = GST_CLOCK_TIME_NONE; - } - } -} - -gboolean -gst_matroska_read_common_tracknumber_unique (GstMatroskaReadCommon * common, - guint64 num) -{ - gint i; - - g_assert (common->src->len == common->num_streams); - for (i = 0; i < common->src->len; i++) { - GstMatroskaTrackContext *context = g_ptr_array_index (common->src, i); - - if (context->num == num) - return FALSE; - } - - return TRUE; -} diff --git a/mobile/gst/matroska/matroska-read-common.h b/mobile/gst/matroska/matroska-read-common.h deleted file mode 100644 index cf617e6..0000000 --- a/mobile/gst/matroska/matroska-read-common.h +++ /dev/null @@ -1,139 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * (c) 2011 Debarshi Ray <rishi@gnu.org> - * - * matroska-read-common.h: shared by matroska file/stream demuxer and parser - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_MATROSKA_READ_COMMON_H__ -#define __GST_MATROSKA_READ_COMMON_H__ - -#include <glib.h> -#include <gst/gst.h> -#include <gst/base/gstadapter.h> - -#include "matroska-ids.h" - -G_BEGIN_DECLS - -GST_DEBUG_CATEGORY_EXTERN(matroskareadcommon_debug); - -typedef enum { - GST_MATROSKA_READ_STATE_START, - GST_MATROSKA_READ_STATE_SEGMENT, - GST_MATROSKA_READ_STATE_HEADER, - GST_MATROSKA_READ_STATE_DATA, - GST_MATROSKA_READ_STATE_SEEK, - GST_MATROSKA_READ_STATE_SCANNING -} GstMatroskaReadState; - -typedef struct _GstMatroskaReadCommon { - GstIndex *element_index; - gint element_index_writer_id; - - /* pads */ - GstPad *sinkpad; - GPtrArray *src; - guint num_streams; - - /* metadata */ - gchar *muxing_app; - gchar *writing_app; - gint64 created; - - /* state */ - GstMatroskaReadState state; - - /* did we parse cues/tracks/segmentinfo already? */ - gboolean index_parsed; - gboolean segmentinfo_parsed; - gboolean attachments_parsed; - GList *tags_parsed; - - /* start-of-segment */ - guint64 ebml_segment_start; - - /* a cue (index) table */ - GArray *index; - - /* timescale in the file */ - guint64 time_scale; - - /* keeping track of playback position */ - GstSegment segment; - - GstTagList *global_tags; - - /* pull mode caching */ - GstBuffer *cached_buffer; - - /* push and pull mode */ - guint64 offset; - - /* push based mode usual suspects */ - GstAdapter *adapter; -} GstMatroskaReadCommon; - -GstFlowReturn gst_matroska_decode_content_encodings (GArray * encodings); -gboolean gst_matroska_decode_data (GArray * encodings, guint8 ** data_out, - guint * size_out, GstMatroskaTrackEncodingScope scope, gboolean free); -gint gst_matroska_index_seek_find (GstMatroskaIndex * i1, GstClockTime * time, - gpointer user_data); -GstMatroskaIndex * gst_matroska_read_common_do_index_seek ( - GstMatroskaReadCommon * common, GstMatroskaTrackContext * track, gint64 - seek_pos, GArray ** _index, gint * _entry_index); -void gst_matroska_read_common_found_global_tag (GstMatroskaReadCommon * common, - GstElement * el, GstTagList * taglist); -gint64 gst_matroska_read_common_get_length (GstMatroskaReadCommon * common); -GstMatroskaTrackContext * gst_matroska_read_common_get_seek_track ( - GstMatroskaReadCommon * common, GstMatroskaTrackContext * track); -GstFlowReturn gst_matroska_read_common_parse_index (GstMatroskaReadCommon * - common, GstEbmlRead * ebml); -GstFlowReturn gst_matroska_read_common_parse_info (GstMatroskaReadCommon * - common, GstElement * el, GstEbmlRead * ebml); -GstFlowReturn gst_matroska_read_common_parse_attachments ( - GstMatroskaReadCommon * common, GstElement * el, GstEbmlRead * ebml); -GstFlowReturn gst_matroska_read_common_parse_chapters (GstMatroskaReadCommon * - common, GstEbmlRead * ebml); -GstFlowReturn gst_matroska_read_common_parse_header (GstMatroskaReadCommon * - common, GstEbmlRead * ebml); -GstFlowReturn gst_matroska_read_common_parse_metadata (GstMatroskaReadCommon * - common, GstElement * el, GstEbmlRead * ebml); -GstFlowReturn gst_matroska_read_common_parse_skip (GstMatroskaReadCommon * - common, GstEbmlRead * ebml, const gchar * parent_name, guint id); -GstFlowReturn gst_matroska_read_common_peek_bytes (GstMatroskaReadCommon * - common, guint64 offset, guint size, GstBuffer ** p_buf, guint8 ** bytes); -GstFlowReturn gst_matroska_read_common_peek_id_length_pull (GstMatroskaReadCommon * - common, GstElement * el, guint32 * _id, guint64 * _length, guint * - _needed); -GstFlowReturn gst_matroska_read_common_peek_id_length_push (GstMatroskaReadCommon * - common, GstElement * el, guint32 * _id, guint64 * _length, guint * - _needed); -gint gst_matroska_read_common_stream_from_num (GstMatroskaReadCommon * common, - guint track_num); -GstFlowReturn gst_matroska_read_common_read_track_encodings ( - GstMatroskaReadCommon * common, GstEbmlRead * ebml, - GstMatroskaTrackContext * context); -void gst_matroska_read_common_reset_streams (GstMatroskaReadCommon * common, - GstClockTime time, gboolean full); -gboolean gst_matroska_read_common_tracknumber_unique (GstMatroskaReadCommon * - common, guint64 num); - -G_END_DECLS - -#endif /* __GST_MATROSKA_READ_COMMON_H__ */ diff --git a/mobile/gst/matroska/matroska.c b/mobile/gst/matroska/matroska.c deleted file mode 100644 index 5391400..0000000 --- a/mobile/gst/matroska/matroska.c +++ /dev/null @@ -1,61 +0,0 @@ -/* GStreamer Matroska muxer/demuxer - * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * - * matroska.c: plugin loader - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "matroska-demux.h" -#include "matroska-parse.h" -#include "matroska-read-common.h" -#include "matroska-mux.h" -#include "matroska-ids.h" -#include "webm-mux.h" - -#include <gst/pbutils/pbutils.h> - -static gboolean -plugin_init (GstPlugin * plugin) -{ - gboolean ret; - - gst_pb_utils_init (); - - gst_matroska_register_tags (); - - GST_DEBUG_CATEGORY_INIT (matroskareadcommon_debug, "matroskareadcommon", 0, - "Matroska demuxer/parser shared debug"); - - ret = gst_matroska_demux_plugin_init (plugin); - ret &= gst_matroska_parse_plugin_init (plugin); - ret &= gst_element_register (plugin, "matroskamux", GST_RANK_PRIMARY, - GST_TYPE_MATROSKA_MUX); - ret &= gst_element_register (plugin, "webmmux", GST_RANK_PRIMARY, - GST_TYPE_WEBM_MUX); - - return ret; -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "matroska", - "Matroska and WebM stream handling", - plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) diff --git a/mobile/gst/matroska/webm-mux.c b/mobile/gst/matroska/webm-mux.c deleted file mode 100644 index 885c651..0000000 --- a/mobile/gst/matroska/webm-mux.c +++ /dev/null @@ -1,105 +0,0 @@ -/* GStreamer WebM muxer - * Copyright (c) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/** - * SECTION:element-webmmux - * - * webmmux muxes VP8 video and Vorbis audio streams into a WebM file. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch-0.10 webmmux name=mux ! filesink location=newfile.webm \ - * uridecodebin uri=file:///path/to/somefile.ogv name=demux \ - * demux. ! ffmpegcolorspace ! vp8enc ! queue ! mux.video_0 \ - * demux. ! progressreport ! audioconvert ! audiorate ! vorbisenc ! queue ! mux.audio_0 - * ]| This pipeline re-encodes a video file of any format into a WebM file. - * |[ - * gst-launch-0.10 webmmux name=mux ! filesink location=test.webm \ - * videotestsrc num-buffers=250 ! video/x-raw-yuv,framerate=25/1 ! ffmpegcolorspace ! vp8enc ! queue ! mux.video_0 \ - * audiotestsrc samplesperbuffer=44100 num-buffers=10 ! audio/x-raw-float,rate=44100 ! vorbisenc ! queue ! mux.audio_0 - * ]| This pipeline muxes a test video and a sine wave into a WebM file. - * </refsect2> - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "webm-mux.h" - -#define COMMON_VIDEO_CAPS \ - "width = (int) [ 16, 4096 ], " \ - "height = (int) [ 16, 4096 ], " \ - "framerate = (fraction) [ 0, MAX ]" - -#define COMMON_AUDIO_CAPS \ - "channels = (int) [ 1, MAX ], " \ - "rate = (int) [ 1, MAX ]" - -GST_BOILERPLATE (GstWebMMux, gst_webm_mux, GstMatroskaMux, - GST_TYPE_MATROSKA_MUX); - -static GstStaticPadTemplate webm_src_templ = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("video/webm") - ); - -static GstStaticPadTemplate webm_videosink_templ = -GST_STATIC_PAD_TEMPLATE ("video_%d", - GST_PAD_SINK, - GST_PAD_REQUEST, - GST_STATIC_CAPS ("video/x-vp8, " COMMON_VIDEO_CAPS) - ); - -static GstStaticPadTemplate webm_audiosink_templ = -GST_STATIC_PAD_TEMPLATE ("audio_%d", - GST_PAD_SINK, - GST_PAD_REQUEST, - GST_STATIC_CAPS ("audio/x-vorbis, " COMMON_AUDIO_CAPS) - ); - -static void -gst_webm_mux_base_init (gpointer g_class) -{ -} - -static void -gst_webm_mux_class_init (GstWebMMuxClass * klass) -{ - GstElementClass *gstelement_class = (GstElementClass *) klass; - - gst_element_class_add_static_pad_template (gstelement_class, - &webm_videosink_templ); - gst_element_class_add_static_pad_template (gstelement_class, - &webm_audiosink_templ); - gst_element_class_add_static_pad_template (gstelement_class, - &webm_src_templ); - gst_element_class_set_details_simple (gstelement_class, "WebM muxer", - "Codec/Muxer", - "Muxes video and audio streams into a WebM stream", - "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>"); -} - -static void -gst_webm_mux_init (GstWebMMux * mux, GstWebMMuxClass * g_class) -{ - GST_MATROSKA_MUX (mux)->doctype = GST_MATROSKA_DOCTYPE_WEBM; -} diff --git a/mobile/gst/matroska/webm-mux.h b/mobile/gst/matroska/webm-mux.h deleted file mode 100644 index cb007b0..0000000 --- a/mobile/gst/matroska/webm-mux.h +++ /dev/null @@ -1,49 +0,0 @@ -/* GStreamer WebM muxer - * Copyright (c) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_WEBM_MUX_H__ -#define __GST_WEBM_MUX_H__ - -#include "matroska-mux.h" - -#define GST_TYPE_WEBM_MUX \ - (gst_webm_mux_get_type ()) -#define GST_WEBM_MUX(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_WEBM_MUX, GstWebMMux)) -#define GST_WEBM_MUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_WEBM_MUX, GstWebMMuxClass)) -#define GST_IS_WEBM_MUX(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_WEBM_MUX)) -#define GST_IS_WEBM_MUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_WEBM_MUX)) - -typedef struct _GstWebMMux GstWebMMux; -typedef struct _GstWebMMuxClass GstWebMMuxClass; - -struct _GstWebMMux { - GstMatroskaMux matroskamux; -}; - -struct _GstWebMMuxClass { - GstMatroskaMuxClass matroskamuxclass; -}; - -GType gst_webm_mux_get_type (void); - -#endif /* __GST_WEBM_MUX_H__ */ |