2 * Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
3 * Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * SECTION:element-speexdec
23 * @see_also: speexenc, oggdemux
25 * This element decodes a Speex stream to raw integer audio.
26 * <ulink url="http://www.speex.org/">Speex</ulink> is a royalty-free
27 * audio codec maintained by the <ulink url="http://www.xiph.org/">Xiph.org
31 * <title>Example pipelines</title>
33 * gst-launch -v filesrc location=speex.ogg ! oggdemux ! speexdec ! audioconvert ! audioresample ! alsasink
34 * ]| Decode an Ogg/Speex file. To create an Ogg/Speex file refer to the
35 * documentation of speexenc.
38 * Last reviewed on 2006-04-05 (0.10.2)
45 #include "gstspeexdec.h"
48 #include <gst/tag/tag.h>
50 GST_DEBUG_CATEGORY_STATIC (speexdec_debug);
51 #define GST_CAT_DEFAULT speexdec_debug
53 #define DEFAULT_ENH TRUE
61 static GstStaticPadTemplate speex_dec_src_factory =
62 GST_STATIC_PAD_TEMPLATE ("src",
65 GST_STATIC_CAPS ("audio/x-raw-int, "
66 "rate = (int) [ 6000, 48000 ], "
67 "channels = (int) [ 1, 2 ], "
68 "endianness = (int) BYTE_ORDER, "
69 "signed = (boolean) true, " "width = (int) 16, " "depth = (int) 16")
72 static GstStaticPadTemplate speex_dec_sink_factory =
73 GST_STATIC_PAD_TEMPLATE ("sink",
76 GST_STATIC_CAPS ("audio/x-speex")
79 GST_BOILERPLATE (GstSpeexDec, gst_speex_dec, GstElement, GST_TYPE_ELEMENT);
81 static gboolean speex_dec_sink_event (GstPad * pad, GstEvent * event);
82 static GstFlowReturn speex_dec_chain (GstPad * pad, GstBuffer * buf);
83 static GstStateChangeReturn speex_dec_change_state (GstElement * element,
84 GstStateChange transition);
86 static gboolean speex_dec_src_event (GstPad * pad, GstEvent * event);
87 static gboolean speex_dec_src_query (GstPad * pad, GstQuery * query);
88 static gboolean speex_dec_sink_query (GstPad * pad, GstQuery * query);
89 static gboolean speex_dec_sink_setcaps (GstPad * pad, GstCaps * caps);
90 static const GstQueryType *speex_get_src_query_types (GstPad * pad);
91 static const GstQueryType *speex_get_sink_query_types (GstPad * pad);
92 static gboolean speex_dec_convert (GstPad * pad,
93 GstFormat src_format, gint64 src_value,
94 GstFormat * dest_format, gint64 * dest_value);
96 static void gst_speex_dec_get_property (GObject * object, guint prop_id,
97 GValue * value, GParamSpec * pspec);
98 static void gst_speex_dec_set_property (GObject * object, guint prop_id,
99 const GValue * value, GParamSpec * pspec);
101 static GstFlowReturn speex_dec_chain_parse_data (GstSpeexDec * dec,
102 GstBuffer * buf, GstClockTime timestamp, GstClockTime duration);
104 static GstFlowReturn speex_dec_chain_parse_header (GstSpeexDec * dec,
106 static GstFlowReturn speex_dec_chain_parse_comments (GstSpeexDec * dec,
110 gst_speex_dec_base_init (gpointer g_class)
112 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
114 gst_element_class_add_pad_template (element_class,
115 gst_static_pad_template_get (&speex_dec_src_factory));
116 gst_element_class_add_pad_template (element_class,
117 gst_static_pad_template_get (&speex_dec_sink_factory));
118 gst_element_class_set_details_simple (element_class, "Speex audio decoder",
119 "Codec/Decoder/Audio",
120 "decode speex streams to audio", "Wim Taymans <wim@fluendo.com>");
124 gst_speex_dec_class_init (GstSpeexDecClass * klass)
126 GObjectClass *gobject_class;
127 GstElementClass *gstelement_class;
129 gobject_class = (GObjectClass *) klass;
130 gstelement_class = (GstElementClass *) klass;
132 gobject_class->set_property = gst_speex_dec_set_property;
133 gobject_class->get_property = gst_speex_dec_get_property;
135 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ENH,
136 g_param_spec_boolean ("enh", "Enh", "Enable perceptual enhancement",
137 DEFAULT_ENH, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
139 gstelement_class->change_state = GST_DEBUG_FUNCPTR (speex_dec_change_state);
141 GST_DEBUG_CATEGORY_INIT (speexdec_debug, "speexdec", 0,
142 "speex decoding element");
146 gst_speex_dec_reset (GstSpeexDec * dec)
148 gst_segment_init (&dec->segment, GST_FORMAT_UNDEFINED);
151 dec->frame_duration = 0;
155 speex_bits_destroy (&dec->bits);
157 gst_buffer_replace (&dec->streamheader, NULL);
158 gst_buffer_replace (&dec->vorbiscomment, NULL);
161 speex_stereo_state_destroy (dec->stereo);
166 speex_decoder_destroy (dec->state);
172 gst_speex_dec_init (GstSpeexDec * dec, GstSpeexDecClass * g_class)
175 gst_pad_new_from_static_template (&speex_dec_sink_factory, "sink");
176 gst_pad_set_chain_function (dec->sinkpad,
177 GST_DEBUG_FUNCPTR (speex_dec_chain));
178 gst_pad_set_event_function (dec->sinkpad,
179 GST_DEBUG_FUNCPTR (speex_dec_sink_event));
180 gst_pad_set_query_type_function (dec->sinkpad,
181 GST_DEBUG_FUNCPTR (speex_get_sink_query_types));
182 gst_pad_set_query_function (dec->sinkpad,
183 GST_DEBUG_FUNCPTR (speex_dec_sink_query));
184 gst_pad_set_setcaps_function (dec->sinkpad,
185 GST_DEBUG_FUNCPTR (speex_dec_sink_setcaps));
186 gst_element_add_pad (GST_ELEMENT (dec), dec->sinkpad);
189 gst_pad_new_from_static_template (&speex_dec_src_factory, "src");
190 gst_pad_use_fixed_caps (dec->srcpad);
191 gst_pad_set_event_function (dec->srcpad,
192 GST_DEBUG_FUNCPTR (speex_dec_src_event));
193 gst_pad_set_query_type_function (dec->srcpad,
194 GST_DEBUG_FUNCPTR (speex_get_src_query_types));
195 gst_pad_set_query_function (dec->srcpad,
196 GST_DEBUG_FUNCPTR (speex_dec_src_query));
197 gst_element_add_pad (GST_ELEMENT (dec), dec->srcpad);
199 dec->enh = DEFAULT_ENH;
201 gst_speex_dec_reset (dec);
205 speex_dec_sink_setcaps (GstPad * pad, GstCaps * caps)
207 GstSpeexDec *dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
210 const GValue *streamheader;
212 s = gst_caps_get_structure (caps, 0);
213 if ((streamheader = gst_structure_get_value (s, "streamheader")) &&
214 G_VALUE_HOLDS (streamheader, GST_TYPE_ARRAY) &&
215 gst_value_array_get_size (streamheader) >= 2) {
216 const GValue *header, *vorbiscomment;
218 GstFlowReturn res = GST_FLOW_OK;
220 header = gst_value_array_get_value (streamheader, 0);
221 if (header && G_VALUE_HOLDS (header, GST_TYPE_BUFFER)) {
222 buf = gst_value_get_buffer (header);
223 res = speex_dec_chain_parse_header (dec, buf);
224 if (res != GST_FLOW_OK)
226 gst_buffer_replace (&dec->streamheader, buf);
229 vorbiscomment = gst_value_array_get_value (streamheader, 1);
230 if (vorbiscomment && G_VALUE_HOLDS (vorbiscomment, GST_TYPE_BUFFER)) {
231 buf = gst_value_get_buffer (vorbiscomment);
232 res = speex_dec_chain_parse_comments (dec, buf);
233 if (res != GST_FLOW_OK)
235 gst_buffer_replace (&dec->vorbiscomment, buf);
240 gst_object_unref (dec);
245 speex_dec_convert (GstPad * pad,
246 GstFormat src_format, gint64 src_value,
247 GstFormat * dest_format, gint64 * dest_value)
253 dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
255 if (src_format == *dest_format) {
256 *dest_value = src_value;
261 if (dec->packetno < 1) {
266 if (pad == dec->sinkpad &&
267 (src_format == GST_FORMAT_BYTES || *dest_format == GST_FORMAT_BYTES)) {
272 switch (src_format) {
273 case GST_FORMAT_TIME:
274 switch (*dest_format) {
275 case GST_FORMAT_BYTES:
276 scale = 2 * dec->header->nb_channels;
277 case GST_FORMAT_DEFAULT:
279 gst_util_uint64_scale_int (scale * src_value, dec->header->rate,
287 case GST_FORMAT_DEFAULT:
288 switch (*dest_format) {
289 case GST_FORMAT_BYTES:
290 *dest_value = src_value * 2 * dec->header->nb_channels;
292 case GST_FORMAT_TIME:
294 gst_util_uint64_scale_int (src_value, GST_SECOND,
302 case GST_FORMAT_BYTES:
303 switch (*dest_format) {
304 case GST_FORMAT_DEFAULT:
305 *dest_value = src_value / (2 * dec->header->nb_channels);
307 case GST_FORMAT_TIME:
308 *dest_value = gst_util_uint64_scale_int (src_value, GST_SECOND,
309 dec->header->rate * 2 * dec->header->nb_channels);
322 gst_object_unref (dec);
326 static const GstQueryType *
327 speex_get_sink_query_types (GstPad * pad)
329 static const GstQueryType speex_dec_sink_query_types[] = {
334 return speex_dec_sink_query_types;
338 speex_dec_sink_query (GstPad * pad, GstQuery * query)
343 dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
345 switch (GST_QUERY_TYPE (query)) {
346 case GST_QUERY_CONVERT:
348 GstFormat src_fmt, dest_fmt;
349 gint64 src_val, dest_val;
351 gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
352 res = speex_dec_convert (pad, src_fmt, src_val, &dest_fmt, &dest_val);
354 gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
359 res = gst_pad_query_default (pad, query);
363 gst_object_unref (dec);
367 static const GstQueryType *
368 speex_get_src_query_types (GstPad * pad)
370 static const GstQueryType speex_dec_src_query_types[] = {
376 return speex_dec_src_query_types;
380 speex_dec_src_query (GstPad * pad, GstQuery * query)
383 gboolean res = FALSE;
385 dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
387 switch (GST_QUERY_TYPE (query)) {
388 case GST_QUERY_POSITION:{
393 gst_query_parse_position (query, &format, NULL);
395 GST_PAD_STREAM_LOCK (dec->sinkpad);
396 segment = dec->segment;
397 GST_PAD_STREAM_UNLOCK (dec->sinkpad);
399 if (segment.format != GST_FORMAT_TIME) {
400 GST_DEBUG_OBJECT (dec, "segment not initialised yet");
404 if ((res = speex_dec_convert (dec->srcpad, GST_FORMAT_TIME,
405 segment.last_stop, &format, &cur))) {
406 gst_query_set_position (query, format, cur);
410 case GST_QUERY_DURATION:{
411 GstFormat format = GST_FORMAT_TIME;
414 /* get duration from demuxer */
415 if (!gst_pad_query_peer_duration (dec->sinkpad, &format, &dur))
418 gst_query_parse_duration (query, &format, NULL);
420 /* and convert it into the requested format */
421 if ((res = speex_dec_convert (dec->srcpad, GST_FORMAT_TIME,
422 dur, &format, &dur))) {
423 gst_query_set_duration (query, format, dur);
428 res = gst_pad_query_default (pad, query);
432 gst_object_unref (dec);
437 speex_dec_src_event (GstPad * pad, GstEvent * event)
439 gboolean res = FALSE;
440 GstSpeexDec *dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
442 GST_LOG_OBJECT (dec, "handling %s event", GST_EVENT_TYPE_NAME (event));
444 switch (GST_EVENT_TYPE (event)) {
445 case GST_EVENT_SEEK:{
446 GstFormat format, tformat;
450 GstSeekType cur_type, stop_type;
454 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
457 /* we have to ask our peer to seek to time here as we know
458 * nothing about how to generate a granulepos from the src
459 * formats or anything.
461 * First bring the requested format to time
463 tformat = GST_FORMAT_TIME;
464 if (!(res = speex_dec_convert (pad, format, cur, &tformat, &tcur)))
466 if (!(res = speex_dec_convert (pad, format, stop, &tformat, &tstop)))
469 /* then seek with time on the peer */
470 real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
471 flags, cur_type, tcur, stop_type, tstop);
473 GST_LOG_OBJECT (dec, "seek to %" GST_TIME_FORMAT, GST_TIME_ARGS (tcur));
475 res = gst_pad_push_event (dec->sinkpad, real_seek);
476 gst_event_unref (event);
480 res = gst_pad_event_default (pad, event);
484 gst_object_unref (dec);
489 speex_dec_sink_event (GstPad * pad, GstEvent * event)
492 gboolean ret = FALSE;
494 dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
496 GST_LOG_OBJECT (dec, "handling %s event", GST_EVENT_TYPE_NAME (event));
498 switch (GST_EVENT_TYPE (event)) {
499 case GST_EVENT_NEWSEGMENT:{
502 gint64 start, stop, time;
505 gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
506 &start, &stop, &time);
508 if (format != GST_FORMAT_TIME)
509 goto newseg_wrong_format;
512 goto newseg_wrong_rate;
515 /* time progressed without data, see if we can fill the gap with
516 * some concealment data */
517 if (dec->segment.last_stop < start) {
518 GstClockTime duration;
520 duration = start - dec->segment.last_stop;
521 speex_dec_chain_parse_data (dec, NULL, dec->segment.last_stop,
526 /* now configure the values */
527 gst_segment_set_newsegment_full (&dec->segment, update,
528 rate, arate, GST_FORMAT_TIME, start, stop, time);
530 GST_DEBUG_OBJECT (dec, "segment now: cur = %" GST_TIME_FORMAT " [%"
531 GST_TIME_FORMAT " - %" GST_TIME_FORMAT "]",
532 GST_TIME_ARGS (dec->segment.last_stop),
533 GST_TIME_ARGS (dec->segment.start),
534 GST_TIME_ARGS (dec->segment.stop));
536 ret = gst_pad_push_event (dec->srcpad, event);
540 ret = gst_pad_event_default (pad, event);
544 gst_object_unref (dec);
550 GST_DEBUG_OBJECT (dec, "received non TIME newsegment");
551 gst_object_unref (dec);
556 GST_DEBUG_OBJECT (dec, "negative rates not supported yet");
557 gst_object_unref (dec);
563 speex_dec_chain_parse_header (GstSpeexDec * dec, GstBuffer * buf)
568 dec->header = speex_packet_to_header ((char *) GST_BUFFER_DATA (buf),
569 GST_BUFFER_SIZE (buf));
574 if (dec->header->mode >= SPEEX_NB_MODES || dec->header->mode < 0)
577 dec->mode = speex_lib_get_mode (dec->header->mode);
579 /* initialize the decoder */
580 dec->state = speex_decoder_init (dec->mode);
584 speex_decoder_ctl (dec->state, SPEEX_SET_ENH, &dec->enh);
585 speex_decoder_ctl (dec->state, SPEEX_GET_FRAME_SIZE, &dec->frame_size);
587 if (dec->header->nb_channels != 1) {
588 dec->stereo = speex_stereo_state_init ();
589 dec->callback.callback_id = SPEEX_INBAND_STEREO;
590 dec->callback.func = speex_std_stereo_request_handler;
591 dec->callback.data = dec->stereo;
592 speex_decoder_ctl (dec->state, SPEEX_SET_HANDLER, &dec->callback);
595 speex_decoder_ctl (dec->state, SPEEX_SET_SAMPLING_RATE, &dec->header->rate);
597 dec->frame_duration = gst_util_uint64_scale_int (dec->frame_size,
598 GST_SECOND, dec->header->rate);
600 speex_bits_init (&dec->bits);
603 caps = gst_caps_new_simple ("audio/x-raw-int",
604 "rate", G_TYPE_INT, dec->header->rate,
605 "channels", G_TYPE_INT, dec->header->nb_channels,
606 "signed", G_TYPE_BOOLEAN, TRUE,
607 "endianness", G_TYPE_INT, G_BYTE_ORDER,
608 "width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, NULL);
610 if (!gst_pad_set_caps (dec->srcpad, caps))
613 gst_caps_unref (caps);
619 GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
620 (NULL), ("couldn't read header"));
621 return GST_FLOW_ERROR;
625 GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
627 ("Mode number %d does not (yet/any longer) exist in this version",
629 return GST_FLOW_ERROR;
633 GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
634 (NULL), ("couldn't initialize decoder"));
635 return GST_FLOW_ERROR;
639 GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
640 (NULL), ("couldn't negotiate format"));
641 gst_caps_unref (caps);
642 return GST_FLOW_NOT_NEGOTIATED;
647 speex_dec_chain_parse_comments (GstSpeexDec * dec, GstBuffer * buf)
650 gchar *ver, *encoder = NULL;
652 list = gst_tag_list_from_vorbiscomment_buffer (buf, NULL, 0, &encoder);
655 GST_WARNING_OBJECT (dec, "couldn't decode comments");
656 list = gst_tag_list_new ();
660 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
661 GST_TAG_ENCODER, encoder, NULL);
664 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
665 GST_TAG_AUDIO_CODEC, "Speex", NULL);
667 ver = g_strndup (dec->header->speex_version, SPEEX_HEADER_VERSION_LENGTH);
670 if (ver != NULL && *ver != '\0') {
671 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
672 GST_TAG_ENCODER_VERSION, ver, NULL);
675 if (dec->header->bitrate > 0) {
676 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
677 GST_TAG_BITRATE, (guint) dec->header->bitrate, NULL);
680 GST_INFO_OBJECT (dec, "tags: %" GST_PTR_FORMAT, list);
682 gst_element_found_tags_for_pad (GST_ELEMENT (dec), dec->srcpad, list);
691 speex_dec_chain_parse_data (GstSpeexDec * dec, GstBuffer * buf,
692 GstClockTime timestamp, GstClockTime duration)
694 GstFlowReturn res = GST_FLOW_OK;
700 if (!dec->frame_duration)
703 if (timestamp != -1) {
704 dec->segment.last_stop = timestamp;
706 timestamp = dec->segment.last_stop;
710 data = GST_BUFFER_DATA (buf);
711 size = GST_BUFFER_SIZE (buf);
713 /* send data to the bitstream */
714 speex_bits_read_from (&dec->bits, (char *) data, size);
716 fpp = dec->header->frames_per_packet;
719 GST_DEBUG_OBJECT (dec, "received buffer of size %u, fpp %d, %d bits", size,
720 fpp, speex_bits_remaining (bits));
722 /* concealment data, pass NULL as the bits parameters */
723 GST_DEBUG_OBJECT (dec, "creating concealment data");
724 fpp = dec->header->frames_per_packet;
729 /* now decode each frame, catering for unknown number of them (e.g. rtp) */
730 for (i = 0; i < fpp; i++) {
735 GST_LOG_OBJECT (dec, "decoding frame %d/%d, %d bits remaining", i, fpp,
736 bits ? speex_bits_remaining (bits) : -1);
738 res = gst_pad_alloc_buffer_and_set_caps (dec->srcpad,
739 GST_BUFFER_OFFSET_NONE, dec->frame_size * dec->header->nb_channels * 2,
740 GST_PAD_CAPS (dec->srcpad), &outbuf);
742 if (res != GST_FLOW_OK) {
743 GST_DEBUG_OBJECT (dec, "buf alloc flow: %s", gst_flow_get_name (res));
747 out_data = (gint16 *) GST_BUFFER_DATA (outbuf);
749 ret = speex_decode_int (dec->state, bits, out_data);
751 /* uh? end of stream */
752 if (fpp == 0 && speex_bits_remaining (bits) < 8) {
753 /* if we did not know how many frames to expect, then we get this
754 at the end if there are leftover bits to pad to the next byte */
756 GST_WARNING_OBJECT (dec, "Unexpected end of stream found");
758 gst_buffer_unref (outbuf);
761 } else if (ret == -2) {
762 GST_WARNING_OBJECT (dec, "Decoding error: corrupted stream?");
763 gst_buffer_unref (outbuf);
768 if (bits && speex_bits_remaining (bits) < 0) {
769 GST_WARNING_OBJECT (dec, "Decoding overflow: corrupted stream?");
770 gst_buffer_unref (outbuf);
774 if (dec->header->nb_channels == 2)
775 speex_decode_stereo_int (out_data, dec->frame_size, dec->stereo);
777 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
778 GST_BUFFER_DURATION (outbuf) = dec->frame_duration;
780 dec->segment.last_stop += dec->frame_duration;
781 timestamp = dec->segment.last_stop;
783 GST_LOG_OBJECT (dec, "pushing buffer with ts=%" GST_TIME_FORMAT ", dur=%"
784 GST_TIME_FORMAT, GST_TIME_ARGS (timestamp),
785 GST_TIME_ARGS (dec->frame_duration));
787 res = gst_pad_push (dec->srcpad, outbuf);
789 if (res != GST_FLOW_OK) {
790 GST_DEBUG_OBJECT (dec, "flow: %s", gst_flow_get_name (res));
800 GST_ELEMENT_ERROR (dec, CORE, NEGOTIATION, (NULL),
801 ("decoder not initialized"));
802 return GST_FLOW_NOT_NEGOTIATED;
807 speex_dec_chain (GstPad * pad, GstBuffer * buf)
812 dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
814 /* If we have the streamheader and vorbiscomment from the caps already
815 * ignore them here */
816 if (dec->streamheader && dec->vorbiscomment) {
817 if (GST_BUFFER_SIZE (dec->streamheader) == GST_BUFFER_SIZE (buf)
818 && memcmp (GST_BUFFER_DATA (dec->streamheader), GST_BUFFER_DATA (buf),
819 GST_BUFFER_SIZE (buf)) == 0) {
821 } else if (GST_BUFFER_SIZE (dec->vorbiscomment) == GST_BUFFER_SIZE (buf)
822 && memcmp (GST_BUFFER_DATA (dec->vorbiscomment), GST_BUFFER_DATA (buf),
823 GST_BUFFER_SIZE (buf)) == 0) {
827 speex_dec_chain_parse_data (dec, buf, GST_BUFFER_TIMESTAMP (buf),
828 GST_BUFFER_DURATION (buf));
831 /* Otherwise fall back to packet counting and assume that the
832 * first two packets are the headers. */
833 switch (dec->packetno) {
835 res = speex_dec_chain_parse_header (dec, buf);
838 res = speex_dec_chain_parse_comments (dec, buf);
842 speex_dec_chain_parse_data (dec, buf, GST_BUFFER_TIMESTAMP (buf),
843 GST_BUFFER_DURATION (buf));
850 gst_buffer_unref (buf);
851 gst_object_unref (dec);
857 gst_speex_dec_get_property (GObject * object, guint prop_id,
858 GValue * value, GParamSpec * pspec)
860 GstSpeexDec *speexdec;
862 speexdec = GST_SPEEX_DEC (object);
866 g_value_set_boolean (value, speexdec->enh);
869 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
875 gst_speex_dec_set_property (GObject * object, guint prop_id,
876 const GValue * value, GParamSpec * pspec)
878 GstSpeexDec *speexdec;
880 speexdec = GST_SPEEX_DEC (object);
884 speexdec->enh = g_value_get_boolean (value);
887 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
893 static GstStateChangeReturn
894 speex_dec_change_state (GstElement * element, GstStateChange transition)
896 GstStateChangeReturn ret;
897 GstSpeexDec *dec = GST_SPEEX_DEC (element);
899 switch (transition) {
900 case GST_STATE_CHANGE_NULL_TO_READY:
901 case GST_STATE_CHANGE_READY_TO_PAUSED:
902 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
907 ret = parent_class->change_state (element, transition);
908 if (ret != GST_STATE_CHANGE_SUCCESS)
911 switch (transition) {
912 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
914 case GST_STATE_CHANGE_PAUSED_TO_READY:
915 gst_speex_dec_reset (dec);
917 case GST_STATE_CHANGE_READY_TO_NULL: