diff options
Diffstat (limited to 'audio/gstsbcdec.c')
| -rw-r--r-- | audio/gstsbcdec.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/audio/gstsbcdec.c b/audio/gstsbcdec.c deleted file mode 100644 index c52834e3..00000000 --- a/audio/gstsbcdec.c +++ /dev/null @@ -1,221 +0,0 @@ -/* - * - * BlueZ - Bluetooth protocol stack for Linux - * - * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org> - * - * - * This library 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. - * - * 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <string.h> - -#include "gstpragma.h" -#include "gstsbcutil.h" -#include "gstsbcdec.h" - -GST_DEBUG_CATEGORY_STATIC(sbc_dec_debug); -#define GST_CAT_DEFAULT sbc_dec_debug - -GST_BOILERPLATE(GstSbcDec, gst_sbc_dec, GstElement, GST_TYPE_ELEMENT); - -static const GstElementDetails sbc_dec_details = - GST_ELEMENT_DETAILS("Bluetooth SBC decoder", - "Codec/Decoder/Audio", - "Decode a SBC audio stream", - "Marcel Holtmann <marcel@holtmann.org>"); - -static GstStaticPadTemplate sbc_dec_sink_factory = - GST_STATIC_PAD_TEMPLATE("sink", GST_PAD_SINK, GST_PAD_ALWAYS, - GST_STATIC_CAPS("audio/x-sbc")); - -static GstStaticPadTemplate sbc_dec_src_factory = - GST_STATIC_PAD_TEMPLATE("src", GST_PAD_SRC, GST_PAD_ALWAYS, - GST_STATIC_CAPS("audio/x-raw-int, " - "rate = (int) { 16000, 32000, 44100, 48000 }, " - "channels = (int) [ 1, 2 ], " - "endianness = (int) BYTE_ORDER, " - "signed = (boolean) true, " - "width = (int) 16, " - "depth = (int) 16")); - -static GstFlowReturn sbc_dec_chain(GstPad *pad, GstBuffer *buffer) -{ - GstSbcDec *dec = GST_SBC_DEC(gst_pad_get_parent(pad)); - GstFlowReturn res = GST_FLOW_OK; - guint size, codesize, offset = 0; - guint8 *data; - - codesize = sbc_get_codesize(&dec->sbc); - - if (dec->buffer) { - GstBuffer *temp = buffer; - buffer = gst_buffer_span(dec->buffer, 0, buffer, - GST_BUFFER_SIZE(dec->buffer) + GST_BUFFER_SIZE(buffer)); - gst_buffer_unref(temp); - gst_buffer_unref(dec->buffer); - dec->buffer = NULL; - } - - data = GST_BUFFER_DATA(buffer); - size = GST_BUFFER_SIZE(buffer); - - while (offset < size) { - GstBuffer *output; - GstPadTemplate *template; - GstCaps *caps; - int consumed; - - res = gst_pad_alloc_buffer_and_set_caps(dec->srcpad, - GST_BUFFER_OFFSET_NONE, - codesize, NULL, &output); - - if (res != GST_FLOW_OK) - goto done; - - consumed = sbc_decode(&dec->sbc, data + offset, size - offset, - GST_BUFFER_DATA(output), codesize, - NULL); - if (consumed <= 0) - break; - - /* we will reuse the same caps object */ - if (dec->outcaps == NULL) { - caps = gst_caps_new_simple("audio/x-raw-int", - "rate", G_TYPE_INT, - gst_sbc_parse_rate_from_sbc( - dec->sbc.frequency), - "channels", G_TYPE_INT, - gst_sbc_get_channel_number( - dec->sbc.mode), - NULL); - - template = gst_static_pad_template_get(&sbc_dec_src_factory); - - dec->outcaps = gst_caps_intersect(caps, - gst_pad_template_get_caps(template)); - - gst_caps_unref(caps); - } - - gst_buffer_set_caps(output, dec->outcaps); - - /* FIXME get a real timestamp */ - GST_BUFFER_TIMESTAMP(output) = GST_CLOCK_TIME_NONE; - - res = gst_pad_push(dec->srcpad, output); - if (res != GST_FLOW_OK) - goto done; - - offset += consumed; - } - - if (offset < size) - dec->buffer = gst_buffer_create_sub(buffer, - offset, size - offset); - -done: - gst_buffer_unref(buffer); - gst_object_unref(dec); - - return res; -} - -static GstStateChangeReturn sbc_dec_change_state(GstElement *element, - GstStateChange transition) -{ - GstSbcDec *dec = GST_SBC_DEC(element); - - switch (transition) { - case GST_STATE_CHANGE_READY_TO_PAUSED: - GST_DEBUG("Setup subband codec"); - if (dec->buffer) { - gst_buffer_unref(dec->buffer); - dec->buffer = NULL; - } - sbc_init(&dec->sbc, 0); - dec->outcaps = NULL; - break; - - case GST_STATE_CHANGE_PAUSED_TO_READY: - GST_DEBUG("Finish subband codec"); - if (dec->buffer) { - gst_buffer_unref(dec->buffer); - dec->buffer = NULL; - } - sbc_finish(&dec->sbc); - if (dec->outcaps) { - gst_caps_unref(dec->outcaps); - dec->outcaps = NULL; - } - break; - - default: - break; - } - - return parent_class->change_state(element, transition); -} - -static void gst_sbc_dec_base_init(gpointer g_class) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS(g_class); - - gst_element_class_add_pad_template(element_class, - gst_static_pad_template_get(&sbc_dec_sink_factory)); - - gst_element_class_add_pad_template(element_class, - gst_static_pad_template_get(&sbc_dec_src_factory)); - - gst_element_class_set_details(element_class, &sbc_dec_details); -} - -static void gst_sbc_dec_class_init(GstSbcDecClass *klass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS(klass); - - parent_class = g_type_class_peek_parent(klass); - - element_class->change_state = GST_DEBUG_FUNCPTR(sbc_dec_change_state); - - GST_DEBUG_CATEGORY_INIT(sbc_dec_debug, "sbcdec", 0, - "SBC decoding element"); -} - -static void gst_sbc_dec_init(GstSbcDec *self, GstSbcDecClass *klass) -{ - self->sinkpad = gst_pad_new_from_static_template( - &sbc_dec_sink_factory, "sink"); - gst_pad_set_chain_function(self->sinkpad, GST_DEBUG_FUNCPTR( - sbc_dec_chain)); - gst_element_add_pad(GST_ELEMENT(self), self->sinkpad); - - self->srcpad = gst_pad_new_from_static_template( - &sbc_dec_src_factory, "src"); - gst_element_add_pad(GST_ELEMENT(self), self->srcpad); - - self->outcaps = NULL; -} - -gboolean gst_sbc_dec_plugin_init(GstPlugin *plugin) -{ - return gst_element_register(plugin, "sbcdec", GST_RANK_PRIMARY, - GST_TYPE_SBC_DEC); -} |