diff options
Diffstat (limited to 'wearable/ext/gdk_pixbuf/gstgdkpixbuf.c')
| -rw-r--r-- | wearable/ext/gdk_pixbuf/gstgdkpixbuf.c | 558 |
1 files changed, 0 insertions, 558 deletions
diff --git a/wearable/ext/gdk_pixbuf/gstgdkpixbuf.c b/wearable/ext/gdk_pixbuf/gstgdkpixbuf.c deleted file mode 100644 index 0a09400..0000000 --- a/wearable/ext/gdk_pixbuf/gstgdkpixbuf.c +++ /dev/null @@ -1,558 +0,0 @@ -/* GStreamer GdkPixbuf-based image decoder - * Copyright (C) 1999-2001 Erik Walthinsen <omega@cse.ogi.edu> - * Copyright (C) 2003 David A. Schleef <ds@schleef.org> - * - * 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 <gst/gst.h> -#include <gst/video/video.h> -#include <gdk-pixbuf/gdk-pixbuf.h> -#include <string.h> - -#include "gstgdkpixbuf.h" -#include "gstgdkpixbufsink.h" -#include "pixbufscale.h" - -GST_DEBUG_CATEGORY_STATIC (gst_gdk_pixbuf_debug); -#define GST_CAT_DEFAULT gst_gdk_pixbuf_debug - -enum -{ - ARG_0, - ARG_SILENT /* FIXME 0.11: remove */ -}; - -static GstStaticPadTemplate gst_gdk_pixbuf_sink_template = - GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("image/png; " - /* "image/jpeg; " disabled because we can't handle MJPEG */ - "image/gif; " - "image/x-icon; " - "application/x-navi-animation; " - "image/x-cmu-raster; " - "image/x-sun-raster; " - "image/x-pixmap; " - "image/tiff; " - "image/x-portable-anymap; " - "image/x-portable-bitmap; " - "image/x-portable-graymap; " - "image/x-portable-pixmap; " - "image/bmp; " - "image/x-bmp; " - "image/x-MS-bmp; " - "image/vnd.wap.wbmp; " "image/x-bitmap; " "image/x-tga; " - "image/x-pcx; image/svg; image/svg+xml") - ); - -static GstStaticPadTemplate gst_gdk_pixbuf_src_template = - GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB "; " GST_VIDEO_CAPS_RGBA) - ); - -static void gst_gdk_pixbuf_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec); -static void gst_gdk_pixbuf_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec); - -static GstStateChangeReturn -gst_gdk_pixbuf_change_state (GstElement * element, GstStateChange transition); -static GstFlowReturn gst_gdk_pixbuf_chain (GstPad * pad, GstBuffer * buffer); -static gboolean gst_gdk_pixbuf_sink_event (GstPad * pad, GstEvent * event); - -#ifdef enable_typefind -static void gst_gdk_pixbuf_type_find (GstTypeFind * tf, gpointer ignore); -#endif - -GST_BOILERPLATE (GstGdkPixbuf, gst_gdk_pixbuf, GstElement, GST_TYPE_ELEMENT); - -static gboolean -gst_gdk_pixbuf_sink_setcaps (GstPad * pad, GstCaps * caps) -{ - GstGdkPixbuf *filter; - const GValue *framerate; - GstStructure *s; - - filter = GST_GDK_PIXBUF (GST_PAD_PARENT (pad)); - s = gst_caps_get_structure (caps, 0); - - if ((framerate = gst_structure_get_value (s, "framerate")) != NULL) { - filter->framerate_numerator = gst_value_get_fraction_numerator (framerate); - filter->framerate_denominator = - gst_value_get_fraction_denominator (framerate); - GST_DEBUG_OBJECT (filter, "got framerate of %d/%d fps => packetized mode", - filter->framerate_numerator, filter->framerate_denominator); - } else { - filter->framerate_numerator = 0; - filter->framerate_denominator = 1; - GST_DEBUG_OBJECT (filter, "no framerate, assuming single image"); - } - - return TRUE; -} - -static GstCaps * -gst_gdk_pixbuf_get_capslist (void) -{ - GSList *slist; - GSList *slist0; - GstCaps *capslist = NULL; - GstCaps *return_caps = NULL; - GstCaps *tmpl_caps; - - capslist = gst_caps_new_empty (); - slist0 = gdk_pixbuf_get_formats (); - - for (slist = slist0; slist; slist = g_slist_next (slist)) { - GdkPixbufFormat *pixbuf_format; - char **mimetypes; - char **mimetype; - - pixbuf_format = slist->data; - mimetypes = gdk_pixbuf_format_get_mime_types (pixbuf_format); - - for (mimetype = mimetypes; *mimetype; mimetype++) { - gst_caps_append_structure (capslist, gst_structure_new (*mimetype, NULL)); - } - g_strfreev (mimetypes); - } - g_slist_free (slist0); - - tmpl_caps = gst_static_caps_get (&gst_gdk_pixbuf_sink_template.static_caps); - return_caps = gst_caps_intersect (capslist, tmpl_caps); - - gst_caps_unref (tmpl_caps); - gst_caps_unref (capslist); - return return_caps; -} - -static GstCaps * -gst_gdk_pixbuf_sink_getcaps (GstPad * pad) -{ - return gst_gdk_pixbuf_get_capslist (); -} - -static void -gst_gdk_pixbuf_base_init (gpointer g_class) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); - - gst_element_class_add_static_pad_template (element_class, - &gst_gdk_pixbuf_src_template); - gst_element_class_add_static_pad_template (element_class, - &gst_gdk_pixbuf_sink_template); - gst_element_class_set_details_simple (element_class, - "GdkPixbuf image decoder", "Codec/Decoder/Image", - "Decodes images in a video stream using GdkPixbuf", - "David A. Schleef <ds@schleef.org>, Renato Filho <renato.filho@indt.org.br>"); -} - -/* initialize the plugin's class */ -static void -gst_gdk_pixbuf_class_init (GstGdkPixbufClass * klass) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - - gobject_class = (GObjectClass *) klass; - gstelement_class = (GstElementClass *) klass; - - gobject_class->set_property = gst_gdk_pixbuf_set_property; - gobject_class->get_property = gst_gdk_pixbuf_get_property; - - g_object_class_install_property (gobject_class, ARG_SILENT, - g_param_spec_boolean ("silent", "Silent", - "Produce verbose output ? (deprecated)", FALSE, - G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); - - gstelement_class->change_state = - GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_change_state); -} - -static void -gst_gdk_pixbuf_init (GstGdkPixbuf * filter, GstGdkPixbufClass * klass) -{ - filter->sinkpad = - gst_pad_new_from_static_template (&gst_gdk_pixbuf_sink_template, "sink"); - gst_pad_set_setcaps_function (filter->sinkpad, - GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_sink_setcaps)); - gst_pad_set_getcaps_function (filter->sinkpad, - GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_sink_getcaps)); - gst_pad_set_chain_function (filter->sinkpad, - GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_chain)); - gst_pad_set_event_function (filter->sinkpad, - GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_sink_event)); - gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad); - - filter->srcpad = - gst_pad_new_from_static_template (&gst_gdk_pixbuf_src_template, "src"); - gst_pad_use_fixed_caps (filter->srcpad); - gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad); - - filter->last_timestamp = GST_CLOCK_TIME_NONE; - filter->pixbuf_loader = NULL; -} - -static GstFlowReturn -gst_gdk_pixbuf_flush (GstGdkPixbuf * filter) -{ - GstBuffer *outbuf; - GdkPixbuf *pixbuf; - int y; - guint8 *out_pix; - guint8 *in_pix; - int in_rowstride; - GstFlowReturn ret; - GstCaps *caps = NULL; - gint n_channels; - - pixbuf = gdk_pixbuf_loader_get_pixbuf (filter->pixbuf_loader); - if (pixbuf == NULL) - goto no_pixbuf; - - if (filter->image_size == 0) { - filter->width = gdk_pixbuf_get_width (pixbuf); - filter->height = gdk_pixbuf_get_height (pixbuf); - filter->rowstride = gdk_pixbuf_get_rowstride (pixbuf); - filter->image_size = filter->rowstride * filter->height; - - n_channels = gdk_pixbuf_get_n_channels (pixbuf); - switch (n_channels) { - case 3: - caps = gst_caps_from_string (GST_VIDEO_CAPS_RGB); - break; - case 4: - caps = gst_caps_from_string (GST_VIDEO_CAPS_RGBA); - break; - default: - goto channels_not_supported; - } - - gst_caps_set_simple (caps, - "width", G_TYPE_INT, filter->width, - "height", G_TYPE_INT, filter->height, - "framerate", GST_TYPE_FRACTION, filter->framerate_numerator, - filter->framerate_denominator, NULL); - - GST_DEBUG ("Set size to %dx%d", filter->width, filter->height); - gst_pad_set_caps (filter->srcpad, caps); - gst_caps_unref (caps); - } - - ret = gst_pad_alloc_buffer_and_set_caps (filter->srcpad, - GST_BUFFER_OFFSET_NONE, - filter->image_size, GST_PAD_CAPS (filter->srcpad), &outbuf); - - if (ret != GST_FLOW_OK) - goto no_buffer; - - GST_BUFFER_TIMESTAMP (outbuf) = filter->last_timestamp; - GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE; - - in_pix = gdk_pixbuf_get_pixels (pixbuf); - in_rowstride = gdk_pixbuf_get_rowstride (pixbuf); - out_pix = GST_BUFFER_DATA (outbuf); - - /* FIXME, last line might not have rowstride pixels */ - for (y = 0; y < filter->height; y++) { - memcpy (out_pix, in_pix, filter->rowstride); - in_pix += in_rowstride; - out_pix += filter->rowstride; - } - - GST_DEBUG ("pushing... %d bytes", GST_BUFFER_SIZE (outbuf)); - ret = gst_pad_push (filter->srcpad, outbuf); - - if (ret != GST_FLOW_OK) - GST_DEBUG_OBJECT (filter, "flow: %s", gst_flow_get_name (ret)); - - return ret; - - /* ERRORS */ -no_pixbuf: - { - GST_ELEMENT_ERROR (filter, STREAM, DECODE, (NULL), ("error geting pixbuf")); - return GST_FLOW_ERROR; - } -channels_not_supported: - { - GST_ELEMENT_ERROR (filter, STREAM, DECODE, (NULL), - ("%d channels not supported", n_channels)); - return GST_FLOW_ERROR; - } -no_buffer: - { - GST_DEBUG ("Failed to create outbuffer - %s", gst_flow_get_name (ret)); - return ret; - } -} - -static gboolean -gst_gdk_pixbuf_sink_event (GstPad * pad, GstEvent * event) -{ - GstFlowReturn res = GST_FLOW_OK; - gboolean ret = TRUE; - GstGdkPixbuf *pixbuf; - - pixbuf = GST_GDK_PIXBUF (gst_pad_get_parent (pad)); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_EOS: - if (pixbuf->pixbuf_loader != NULL) { - gdk_pixbuf_loader_close (pixbuf->pixbuf_loader, NULL); - res = gst_gdk_pixbuf_flush (pixbuf); - g_object_unref (G_OBJECT (pixbuf->pixbuf_loader)); - pixbuf->pixbuf_loader = NULL; - /* as long as we don't have flow returns for event functions we need - * to post an error here, or the application might never know that - * things failed */ - if (res != GST_FLOW_OK && res != GST_FLOW_WRONG_STATE) { - GST_ELEMENT_ERROR (pixbuf, STREAM, FAILED, (NULL), - ("Flow: %s", gst_flow_get_name (res))); - } - } - break; - case GST_EVENT_NEWSEGMENT: - case GST_EVENT_FLUSH_STOP: - if (pixbuf->pixbuf_loader != NULL) { - gdk_pixbuf_loader_close (pixbuf->pixbuf_loader, NULL); - g_object_unref (G_OBJECT (pixbuf->pixbuf_loader)); - pixbuf->pixbuf_loader = NULL; - } - break; - default: - break; - } - - if (res == GST_FLOW_OK) { - ret = gst_pad_event_default (pad, event); - } else { - ret = FALSE; - } - - gst_object_unref (pixbuf); - - return ret; -} - -static GstFlowReturn -gst_gdk_pixbuf_chain (GstPad * pad, GstBuffer * buf) -{ - GstGdkPixbuf *filter; - GstFlowReturn ret = GST_FLOW_OK; - GError *error = NULL; - GstClockTime timestamp; - guint8 *data; - guint size; - - filter = GST_GDK_PIXBUF (gst_pad_get_parent (pad)); - - timestamp = GST_BUFFER_TIMESTAMP (buf); - - if (GST_CLOCK_TIME_IS_VALID (timestamp)) - filter->last_timestamp = timestamp; - - GST_LOG_OBJECT (filter, "buffer with ts: %" GST_TIME_FORMAT, - GST_TIME_ARGS (timestamp)); - - if (filter->pixbuf_loader == NULL) - filter->pixbuf_loader = gdk_pixbuf_loader_new (); - - data = GST_BUFFER_DATA (buf); - size = GST_BUFFER_SIZE (buf); - - GST_LOG_OBJECT (filter, "Writing buffer size %d", size); - if (!gdk_pixbuf_loader_write (filter->pixbuf_loader, data, size, &error)) - goto error; - - /* packetised mode? */ - if (filter->framerate_numerator != 0) { - gdk_pixbuf_loader_close (filter->pixbuf_loader, NULL); - ret = gst_gdk_pixbuf_flush (filter); - g_object_unref (filter->pixbuf_loader); - filter->pixbuf_loader = NULL; - } - - gst_buffer_unref (buf); - gst_object_unref (filter); - - return ret; - - /* ERRORS */ -error: - { - GST_ELEMENT_ERROR (filter, STREAM, DECODE, (NULL), - ("gdk_pixbuf_loader_write error: %s", error->message)); - g_error_free (error); - gst_buffer_unref (buf); - gst_object_unref (filter); - return GST_FLOW_ERROR; - } -} - -static void -gst_gdk_pixbuf_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - switch (prop_id) { - case ARG_SILENT: - /* filter->silent = g_value_get_boolean (value); */ - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_gdk_pixbuf_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec) -{ - switch (prop_id) { - case ARG_SILENT: - /* g_value_set_boolean (value, filter->silent); */ - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static GstStateChangeReturn -gst_gdk_pixbuf_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - GstGdkPixbuf *dec = GST_GDK_PIXBUF (element); - - switch (transition) { - case GST_STATE_CHANGE_READY_TO_PAUSED: - /* default to single image mode, setcaps function might not be called */ - dec->framerate_numerator = 0; - dec->framerate_denominator = 1; - break; - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - if (ret == GST_STATE_CHANGE_FAILURE) - return ret; - - switch (transition) { - case GST_STATE_CHANGE_PAUSED_TO_READY: - dec->framerate_numerator = 0; - dec->framerate_denominator = 0; - break; - default: - break; - } - - return ret; -} - -#define GST_GDK_PIXBUF_TYPE_FIND_SIZE 1024 - -#ifdef enable_typefind -static void -gst_gdk_pixbuf_type_find (GstTypeFind * tf, gpointer ignore) -{ - guint8 *data; - GdkPixbufLoader *pixbuf_loader; - GdkPixbufFormat *format; - - data = gst_type_find_peek (tf, 0, GST_GDK_PIXBUF_TYPE_FIND_SIZE); - if (data == NULL) - return; - - GST_DEBUG ("creating new loader"); - - pixbuf_loader = gdk_pixbuf_loader_new (); - - gdk_pixbuf_loader_write (pixbuf_loader, data, GST_GDK_PIXBUF_TYPE_FIND_SIZE, - NULL); - - format = gdk_pixbuf_loader_get_format (pixbuf_loader); - - if (format != NULL) { - GstCaps *caps; - gchar **p; - gchar **mlist = gdk_pixbuf_format_get_mime_types (format); - - for (p = mlist; *p; ++p) { - GST_DEBUG ("suggesting mime type %s", *p); - caps = gst_caps_new_simple (*p, NULL); - gst_type_find_suggest (tf, GST_TYPE_FIND_MINIMUM, caps); - gst_caps_free (caps); - } - g_strfreev (mlist); - } - - GST_DEBUG ("closing pixbuf loader, hope it doesn't hang ..."); - /* librsvg 2.4.x has a bug where it triggers an endless loop in trying - to close a gzip that's not an svg; fixed upstream but no good way - to work around it */ - gdk_pixbuf_loader_close (pixbuf_loader, NULL); - GST_DEBUG ("closed pixbuf loader"); - g_object_unref (G_OBJECT (pixbuf_loader)); -} -#endif - -/* entry point to initialize the plug-in - * initialize the plug-in itself - * register the element factories and pad templates - * register the features - */ -static gboolean -plugin_init (GstPlugin * plugin) -{ - GST_DEBUG_CATEGORY_INIT (gst_gdk_pixbuf_debug, "gdkpixbuf", 0, - "gdk pixbuf loader"); - - if (!gst_element_register (plugin, "gdkpixbufdec", GST_RANK_SECONDARY, - GST_TYPE_GDK_PIXBUF)) - return FALSE; - -#ifdef enable_typefind - gst_type_find_register (plugin, "image/*", GST_RANK_MARGINAL, - gst_gdk_pixbuf_type_find, NULL, GST_CAPS_ANY, NULL); -#endif - - if (!gst_element_register (plugin, "gdkpixbufsink", GST_RANK_NONE, - GST_TYPE_GDK_PIXBUF_SINK)) - return FALSE; - - if (!pixbufscale_init (plugin)) - return FALSE; - - /* plugin initialisation succeeded */ - return TRUE; -} - - -/* this is the structure that gst-register looks for - * so keep the name plugin_desc, or you cannot get your plug-in registered */ -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "gdkpixbuf", - "GdkPixbuf-based image decoder, scaler and sink", - plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) |