1 /* GStreamer Matroska muxer/demuxer
2 * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
3 * (c) 2006 Tim-Philipp Müller <tim centricular net>
4 * (c) 2008 Sebastian Dröge <slomo@circular-chaos.org>
6 * matroska-demux.c: matroska file/stream demuxer
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* TODO: check CRC32 if present
25 * TODO: there can be a segment after the first segment. Handle like
26 * chained oggs. Fixes #334082
27 * TODO: Test samples: http://www.matroska.org/samples/matrix/index.html
28 * http://samples.mplayerhq.hu/Matroska/
29 * TODO: check if demuxing is done correct for all codecs according to spec
30 * TODO: seeking with incomplete or without CUE
34 * SECTION:element-matroskademux
36 * matroskademux demuxes a Matroska file into the different contained streams.
39 * <title>Example launch line</title>
41 * gst-launch -v filesrc location=/path/to/mkv ! matroskademux ! vorbisdec ! audioconvert ! audioresample ! autoaudiosink
42 * ]| This pipeline demuxes a Matroska file and outputs the contained Vorbis audio.
54 /* For AVI compatibility mode
55 and for fourcc stuff */
56 #include <gst/riff/riff-read.h>
57 #include <gst/riff/riff-ids.h>
58 #include <gst/riff/riff-media.h>
60 #include <gst/tag/tag.h>
62 #include <gst/base/gsttypefindhelper.h>
74 #include "matroska-demux.h"
75 #include "matroska-ids.h"
77 GST_DEBUG_CATEGORY_STATIC (matroskademux_debug);
78 #define GST_CAT_DEFAULT matroskademux_debug
80 #define DEBUG_ELEMENT_START(demux, ebml, element) \
81 GST_DEBUG_OBJECT (demux, "Parsing " element " element at offset %" \
82 G_GUINT64_FORMAT, ebml->offset)
84 #define DEBUG_ELEMENT_STOP(demux, ebml, element, ret) \
85 GST_DEBUG_OBJECT (demux, "Parsing " element " element at offset %" \
86 G_GUINT64_FORMAT " finished with '%s'", ebml->offset, \
87 gst_flow_get_name (ret))
96 static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink",
99 GST_STATIC_CAPS ("video/x-matroska")
102 /* TODO: fill in caps! */
104 static GstStaticPadTemplate audio_src_templ =
105 GST_STATIC_PAD_TEMPLATE ("audio_%02d",
108 GST_STATIC_CAPS ("ANY")
111 static GstStaticPadTemplate video_src_templ =
112 GST_STATIC_PAD_TEMPLATE ("video_%02d",
115 GST_STATIC_CAPS ("ANY")
118 static GstStaticPadTemplate subtitle_src_templ =
119 GST_STATIC_PAD_TEMPLATE ("subtitle_%02d",
122 GST_STATIC_CAPS ("text/plain; application/x-ssa; application/x-ass; "
123 "application/x-usf; video/x-dvd-subpicture; "
124 "subpicture/x-pgs; subtitle/x-kate; " "application/x-subtitle-unknown")
127 static GstFlowReturn gst_matroska_demux_parse_contents (GstMatroskaDemux *
130 /* element functions */
131 static void gst_matroska_demux_loop (GstPad * pad);
133 static gboolean gst_matroska_demux_element_send_event (GstElement * element,
135 static gboolean gst_matroska_demux_element_query (GstElement * element,
139 static gboolean gst_matroska_demux_sink_activate_pull (GstPad * sinkpad,
141 static gboolean gst_matroska_demux_sink_activate (GstPad * sinkpad);
143 static gboolean gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux,
144 GstPad * pad, GstEvent * event);
145 static gboolean gst_matroska_demux_handle_src_event (GstPad * pad,
147 static const GstQueryType *gst_matroska_demux_get_src_query_types (GstPad *
149 static gboolean gst_matroska_demux_handle_src_query (GstPad * pad,
152 static gboolean gst_matroska_demux_handle_sink_event (GstPad * pad,
154 static GstFlowReturn gst_matroska_demux_chain (GstPad * pad,
157 static GstStateChangeReturn
158 gst_matroska_demux_change_state (GstElement * element,
159 GstStateChange transition);
161 gst_matroska_demux_set_index (GstElement * element, GstIndex * index);
162 static GstIndex *gst_matroska_demux_get_index (GstElement * element);
165 static GstCaps *gst_matroska_demux_video_caps (GstMatroskaTrackVideoContext
167 const gchar * codec_id, guint8 * data, guint size, gchar ** codec_name);
168 static GstCaps *gst_matroska_demux_audio_caps (GstMatroskaTrackAudioContext
170 const gchar * codec_id, guint8 * data, guint size, gchar ** codec_name);
172 * gst_matroska_demux_subtitle_caps (GstMatroskaTrackSubtitleContext *
173 subtitlecontext, const gchar * codec_id, gpointer data, guint size);
176 static void gst_matroska_demux_reset (GstElement * element);
178 GST_BOILERPLATE (GstMatroskaDemux, gst_matroska_demux, GstEbmlRead,
182 gst_matroska_demux_base_init (gpointer klass)
184 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
186 gst_element_class_add_pad_template (element_class,
187 gst_static_pad_template_get (&video_src_templ));
188 gst_element_class_add_pad_template (element_class,
189 gst_static_pad_template_get (&audio_src_templ));
190 gst_element_class_add_pad_template (element_class,
191 gst_static_pad_template_get (&subtitle_src_templ));
192 gst_element_class_add_pad_template (element_class,
193 gst_static_pad_template_get (&sink_templ));
195 gst_element_class_set_details_simple (element_class, "Matroska demuxer",
197 "Demuxes a Matroska Stream into video/audio/subtitles",
198 "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>");
202 gst_matroska_demux_finalize (GObject * object)
204 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (object);
207 g_ptr_array_free (demux->src, TRUE);
211 if (demux->global_tags) {
212 gst_tag_list_free (demux->global_tags);
213 demux->global_tags = NULL;
216 g_object_unref (demux->adapter);
218 G_OBJECT_CLASS (parent_class)->finalize (object);
222 gst_matroska_demux_class_init (GstMatroskaDemuxClass * klass)
224 GObjectClass *gobject_class = (GObjectClass *) klass;
225 GstElementClass *gstelement_class = (GstElementClass *) klass;
227 GST_DEBUG_CATEGORY_INIT (matroskademux_debug, "matroskademux", 0,
230 gobject_class->finalize = gst_matroska_demux_finalize;
232 gstelement_class->change_state =
233 GST_DEBUG_FUNCPTR (gst_matroska_demux_change_state);
234 gstelement_class->send_event =
235 GST_DEBUG_FUNCPTR (gst_matroska_demux_element_send_event);
236 gstelement_class->query =
237 GST_DEBUG_FUNCPTR (gst_matroska_demux_element_query);
239 gstelement_class->set_index =
240 GST_DEBUG_FUNCPTR (gst_matroska_demux_set_index);
241 gstelement_class->get_index =
242 GST_DEBUG_FUNCPTR (gst_matroska_demux_get_index);
246 gst_matroska_demux_init (GstMatroskaDemux * demux,
247 GstMatroskaDemuxClass * klass)
249 demux->sinkpad = gst_pad_new_from_static_template (&sink_templ, "sink");
250 gst_pad_set_activate_function (demux->sinkpad,
251 GST_DEBUG_FUNCPTR (gst_matroska_demux_sink_activate));
252 gst_pad_set_activatepull_function (demux->sinkpad,
253 GST_DEBUG_FUNCPTR (gst_matroska_demux_sink_activate_pull));
254 gst_pad_set_chain_function (demux->sinkpad,
255 GST_DEBUG_FUNCPTR (gst_matroska_demux_chain));
256 gst_pad_set_event_function (demux->sinkpad,
257 GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_sink_event));
258 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
259 GST_EBML_READ (demux)->sinkpad = demux->sinkpad;
261 /* initial stream no. */
264 demux->writing_app = NULL;
265 demux->muxing_app = NULL;
267 demux->global_tags = NULL;
269 demux->adapter = gst_adapter_new ();
272 gst_matroska_demux_reset (GST_ELEMENT (demux));
276 gst_matroska_track_free (GstMatroskaTrackContext * track)
278 g_free (track->codec_id);
279 g_free (track->codec_name);
280 g_free (track->name);
281 g_free (track->language);
282 g_free (track->codec_priv);
283 g_free (track->codec_state);
285 if (track->encodings != NULL) {
288 for (i = 0; i < track->encodings->len; ++i) {
289 GstMatroskaTrackEncoding *enc = &g_array_index (track->encodings,
290 GstMatroskaTrackEncoding,
293 g_free (enc->comp_settings);
295 g_array_free (track->encodings, TRUE);
298 if (track->pending_tags)
299 gst_tag_list_free (track->pending_tags);
301 if (track->index_table)
302 g_array_free (track->index_table, TRUE);
308 * Returns the aggregated GstFlowReturn.
311 gst_matroska_demux_combine_flows (GstMatroskaDemux * demux,
312 GstMatroskaTrackContext * track, GstFlowReturn ret)
316 /* store the value */
317 track->last_flow = ret;
319 /* any other error that is not-linked can be returned right away */
320 if (ret != GST_FLOW_NOT_LINKED)
323 /* only return NOT_LINKED if all other pads returned NOT_LINKED */
324 g_assert (demux->src->len == demux->num_streams);
325 for (i = 0; i < demux->src->len; i++) {
326 GstMatroskaTrackContext *ostream = g_ptr_array_index (demux->src, i);
331 ret = ostream->last_flow;
332 /* some other return value (must be SUCCESS but we can return
333 * other values as well) */
334 if (ret != GST_FLOW_NOT_LINKED)
337 /* if we get here, all other pads were unlinked and we return
340 GST_LOG_OBJECT (demux, "combined return %s", gst_flow_get_name (ret));
345 gst_matroska_demux_reset (GstElement * element)
347 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
350 GST_DEBUG_OBJECT (demux, "Resetting state");
353 demux->state = GST_MATROSKA_DEMUX_STATE_START;
355 /* clean up existing streams */
357 g_assert (demux->src->len == demux->num_streams);
358 for (i = 0; i < demux->src->len; i++) {
359 GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
361 if (context->pad != NULL)
362 gst_element_remove_pad (GST_ELEMENT (demux), context->pad);
364 gst_caps_replace (&context->caps, NULL);
365 gst_matroska_track_free (context);
367 g_ptr_array_free (demux->src, TRUE);
369 demux->src = g_ptr_array_new ();
371 demux->num_streams = 0;
372 demux->num_a_streams = 0;
373 demux->num_t_streams = 0;
374 demux->num_v_streams = 0;
376 /* reset media info */
377 g_free (demux->writing_app);
378 demux->writing_app = NULL;
379 g_free (demux->muxing_app);
380 demux->muxing_app = NULL;
384 g_array_free (demux->index, TRUE);
390 demux->time_scale = 1000000;
391 demux->created = G_MININT64;
393 demux->index_parsed = FALSE;
394 demux->tracks_parsed = FALSE;
395 demux->segmentinfo_parsed = FALSE;
396 demux->attachments_parsed = FALSE;
398 g_list_foreach (demux->tags_parsed, (GFunc) gst_ebml_level_free, NULL);
399 g_list_free (demux->tags_parsed);
400 demux->tags_parsed = NULL;
402 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
403 demux->duration = -1;
404 demux->last_stop_end = GST_CLOCK_TIME_NONE;
405 demux->seek_block = 0;
408 demux->cluster_time = GST_CLOCK_TIME_NONE;
409 demux->cluster_offset = 0;
411 if (demux->close_segment) {
412 gst_event_unref (demux->close_segment);
413 demux->close_segment = NULL;
416 if (demux->new_segment) {
417 gst_event_unref (demux->new_segment);
418 demux->new_segment = NULL;
421 if (demux->element_index) {
422 gst_object_unref (demux->element_index);
423 demux->element_index = NULL;
425 demux->element_index_writer_id = -1;
427 if (demux->global_tags) {
428 gst_tag_list_free (demux->global_tags);
430 demux->global_tags = gst_tag_list_new ();
434 gst_matroska_demux_stream_from_num (GstMatroskaDemux * demux, guint track_num)
438 g_assert (demux->src->len == demux->num_streams);
439 for (n = 0; n < demux->src->len; n++) {
440 GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, n);
442 if (context->num == track_num) {
447 if (n == demux->num_streams)
448 GST_WARNING_OBJECT (demux,
449 "Failed to find corresponding pad for tracknum %d", track_num);
455 gst_matroska_demux_encoding_cmp (GstMatroskaTrackEncoding * a,
456 GstMatroskaTrackEncoding * b)
458 if (b->order > a->order)
460 else if (b->order < a->order)
467 gst_matroska_demux_encoding_order_unique (GArray * encodings, guint64 order)
471 if (encodings == NULL || encodings->len == 0)
474 for (i = 0; i < encodings->len; i++)
475 if (g_array_index (encodings, GstMatroskaTrackEncoding, i).order == order)
482 gst_matroska_demux_read_track_encoding (GstMatroskaDemux * demux,
483 GstMatroskaTrackContext * context)
485 GstMatroskaTrackEncoding enc = { 0, };
486 GstEbmlRead *ebml = GST_EBML_READ (demux);
490 DEBUG_ELEMENT_START (demux, ebml, "ContentEncoding");
491 /* Set default values */
493 /* All other default values are 0 */
495 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
496 DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncoding", ret);
500 while (ret == GST_FLOW_OK) {
501 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
504 if (demux->level_up) {
510 case GST_MATROSKA_ID_CONTENTENCODINGORDER:{
513 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
516 if (!gst_matroska_demux_encoding_order_unique (context->encodings, num)) {
517 GST_ERROR_OBJECT (demux, "ContentEncodingOrder %" G_GUINT64_FORMAT
518 "is not unique for track %d", num, context->num);
519 ret = GST_FLOW_ERROR;
523 GST_DEBUG_OBJECT (demux, "ContentEncodingOrder: %" G_GUINT64_FORMAT,
528 case GST_MATROSKA_ID_CONTENTENCODINGSCOPE:{
531 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
534 if (num > 7 && num == 0) {
535 GST_ERROR_OBJECT (demux, "Invalid ContentEncodingScope %"
536 G_GUINT64_FORMAT, num);
537 ret = GST_FLOW_ERROR;
541 GST_DEBUG_OBJECT (demux, "ContentEncodingScope: %" G_GUINT64_FORMAT,
547 case GST_MATROSKA_ID_CONTENTENCODINGTYPE:{
550 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
554 GST_ERROR_OBJECT (demux, "Invalid ContentEncodingType %"
555 G_GUINT64_FORMAT, num);
556 ret = GST_FLOW_ERROR;
558 } else if (num != 0) {
559 GST_ERROR_OBJECT (demux, "Encrypted tracks are not supported yet");
560 ret = GST_FLOW_ERROR;
563 GST_DEBUG_OBJECT (demux, "ContentEncodingType: %" G_GUINT64_FORMAT,
568 case GST_MATROSKA_ID_CONTENTCOMPRESSION:{
570 DEBUG_ELEMENT_START (demux, ebml, "ContentCompression");
572 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
575 while (ret == GST_FLOW_OK) {
576 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up,
577 &id)) != GST_FLOW_OK)
580 if (demux->level_up) {
586 case GST_MATROSKA_ID_CONTENTCOMPALGO:{
589 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) {
593 GST_ERROR_OBJECT (demux, "Invalid ContentCompAlgo %"
594 G_GUINT64_FORMAT, num);
595 ret = GST_FLOW_ERROR;
598 GST_DEBUG_OBJECT (demux, "ContentCompAlgo: %" G_GUINT64_FORMAT,
604 case GST_MATROSKA_ID_CONTENTCOMPSETTINGS:{
609 gst_ebml_read_binary (ebml, &id, &data,
610 &size)) != GST_FLOW_OK) {
613 enc.comp_settings = data;
614 enc.comp_settings_length = size;
615 GST_DEBUG_OBJECT (demux,
616 "ContentCompSettings of size %" G_GUINT64_FORMAT, size);
620 GST_WARNING_OBJECT (demux,
621 "Unknown ContentCompression subelement 0x%x - ignoring", id);
622 ret = gst_ebml_read_skip (ebml);
626 if (demux->level_up) {
631 DEBUG_ELEMENT_STOP (demux, ebml, "ContentCompression", ret);
635 case GST_MATROSKA_ID_CONTENTENCRYPTION:
636 GST_ERROR_OBJECT (demux, "Encrypted tracks not yet supported");
637 gst_ebml_read_skip (ebml);
638 ret = GST_FLOW_ERROR;
641 GST_WARNING_OBJECT (demux,
642 "Unknown ContentEncoding subelement 0x%x - ignoring", id);
643 ret = gst_ebml_read_skip (ebml);
647 if (demux->level_up) {
653 DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncoding", ret);
654 if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)
657 /* TODO: Check if the combination of values is valid */
659 g_array_append_val (context->encodings, enc);
665 gst_matroska_decompress_data (GstMatroskaTrackEncoding * enc,
666 guint8 ** data_out, guint * size_out,
667 GstMatroskaTrackCompressionAlgorithm algo)
669 guint8 *new_data = NULL;
672 guint8 *data = *data_out;
673 guint size = *size_out;
677 if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_ZLIB) {
679 /* zlib encoded data */
685 zstream.zalloc = (alloc_func) 0;
686 zstream.zfree = (free_func) 0;
687 zstream.opaque = (voidpf) 0;
688 if (inflateInit (&zstream) != Z_OK) {
689 GST_WARNING ("zlib initialization failed.");
693 zstream.next_in = (Bytef *) data;
694 zstream.avail_in = orig_size;
695 new_size = orig_size;
696 new_data = g_malloc (new_size);
697 zstream.avail_out = new_size;
698 zstream.next_out = (Bytef *) new_data;
701 result = inflate (&zstream, Z_NO_FLUSH);
702 if (result != Z_OK && result != Z_STREAM_END) {
703 GST_WARNING ("zlib decompression failed.");
705 inflateEnd (&zstream);
709 new_data = g_realloc (new_data, new_size);
710 zstream.next_out = (Bytef *) (new_data + zstream.total_out);
711 zstream.avail_out += 4000;
712 } while (zstream.avail_in != 0 && result != Z_STREAM_END);
714 if (result != Z_STREAM_END) {
718 new_size = zstream.total_out;
719 inflateEnd (&zstream);
722 GST_WARNING ("zlib encoded tracks not supported.");
726 } else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_BZLIB) {
728 /* bzip2 encoded data */
733 bzstream.bzalloc = NULL;
734 bzstream.bzfree = NULL;
735 bzstream.opaque = NULL;
738 if (BZ2_bzDecompressInit (&bzstream, 0, 0) != BZ_OK) {
739 GST_WARNING ("bzip2 initialization failed.");
744 bzstream.next_in = (char *) data;
745 bzstream.avail_in = orig_size;
746 new_size = orig_size;
747 new_data = g_malloc (new_size);
748 bzstream.avail_out = new_size;
749 bzstream.next_out = (char *) new_data;
752 result = BZ2_bzDecompress (&bzstream);
753 if (result != BZ_OK && result != BZ_STREAM_END) {
754 GST_WARNING ("bzip2 decompression failed.");
756 BZ2_bzDecompressEnd (&bzstream);
760 new_data = g_realloc (new_data, new_size);
761 bzstream.next_out = (char *) (new_data + bzstream.total_out_lo32);
762 bzstream.avail_out += 4000;
763 } while (bzstream.avail_in != 0 && result != BZ_STREAM_END);
765 if (result != BZ_STREAM_END) {
769 new_size = bzstream.total_out_lo32;
770 BZ2_bzDecompressEnd (&bzstream);
773 GST_WARNING ("bzip2 encoded tracks not supported.");
777 } else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_LZO1X) {
778 /* lzo encoded data */
780 int orig_size, out_size;
785 new_data = g_malloc (new_size);
791 result = lzo1x_decode (new_data, &out_size, data, &orig_size);
795 new_data = g_realloc (new_data, new_size);
797 } while (orig_size > 0 && result == LZO_OUTPUT_FULL);
799 new_size -= out_size;
801 if (result != LZO_OUTPUT_FULL) {
802 GST_WARNING ("lzo decompression failed");
809 } else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_HEADERSTRIP) {
810 /* header stripped encoded data */
811 if (enc->comp_settings_length > 0) {
812 new_data = g_malloc (size + enc->comp_settings_length);
813 new_size = size + enc->comp_settings_length;
815 memcpy (new_data, enc->comp_settings, enc->comp_settings_length);
816 memcpy (new_data + enc->comp_settings_length, data, size);
819 g_assert_not_reached ();
828 *data_out = new_data;
829 *size_out = new_size;
836 gst_matroska_decode_data (GArray * encodings, guint8 ** data_out,
837 guint * size_out, GstMatroskaTrackEncodingScope scope, gboolean free)
844 g_return_val_if_fail (encodings != NULL, FALSE);
845 g_return_val_if_fail (data_out != NULL && *data_out != NULL, FALSE);
846 g_return_val_if_fail (size_out != NULL, FALSE);
851 for (i = 0; i < encodings->len; i++) {
852 GstMatroskaTrackEncoding *enc =
853 &g_array_index (encodings, GstMatroskaTrackEncoding, i);
854 guint8 *new_data = NULL;
857 if ((enc->scope & scope) == 0)
860 /* Encryption not supported yet */
861 if (enc->type != 0) {
870 gst_matroska_decompress_data (enc, &new_data, &new_size,
876 if ((data == *data_out && free) || (data != *data_out))
884 if ((data == *data_out && free) || (data != *data_out))
898 gst_matroska_decode_buffer (GstMatroskaTrackContext * context, GstBuffer * buf)
904 g_return_val_if_fail (GST_IS_BUFFER (buf), NULL);
906 GST_DEBUG ("decoding buffer %p", buf);
908 data = GST_BUFFER_DATA (buf);
909 size = GST_BUFFER_SIZE (buf);
911 g_return_val_if_fail (data != NULL && size > 0, buf);
913 if (gst_matroska_decode_data (context->encodings, &data, &size,
914 GST_MATROSKA_TRACK_ENCODING_SCOPE_FRAME, FALSE)) {
915 new_buf = gst_buffer_new ();
916 GST_BUFFER_MALLOCDATA (new_buf) = (guint8 *) data;
917 GST_BUFFER_DATA (new_buf) = (guint8 *) data;
918 GST_BUFFER_SIZE (new_buf) = size;
920 gst_buffer_unref (buf);
925 GST_DEBUG ("decode data failed");
926 gst_buffer_unref (buf);
932 gst_matroska_decode_content_encodings (GArray * encodings)
936 if (encodings == NULL)
939 for (i = 0; i < encodings->len; i++) {
940 GstMatroskaTrackEncoding *enc =
941 &g_array_index (encodings, GstMatroskaTrackEncoding, i);
942 GstMatroskaTrackEncoding *enc2;
946 if ((enc->scope & GST_MATROSKA_TRACK_ENCODING_SCOPE_NEXT_CONTENT_ENCODING)
950 /* Encryption not supported yet */
952 return GST_FLOW_ERROR;
954 if (i + 1 >= encodings->len)
955 return GST_FLOW_ERROR;
957 enc2 = &g_array_index (encodings, GstMatroskaTrackEncoding, i + 1);
959 if (enc->comp_settings_length == 0)
962 data = enc->comp_settings;
963 size = enc->comp_settings_length;
965 if (!gst_matroska_decompress_data (enc, &data, &size, enc->comp_algo))
966 return GST_FLOW_ERROR;
968 g_free (enc->comp_settings);
970 enc->comp_settings = data;
971 enc->comp_settings_length = size;
978 gst_matroska_demux_read_track_encodings (GstMatroskaDemux * demux,
979 GstMatroskaTrackContext * context)
982 GstEbmlRead *ebml = GST_EBML_READ (demux);
985 DEBUG_ELEMENT_START (demux, ebml, "ContentEncodings");
987 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
988 DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncodings", ret);
993 g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaTrackEncoding), 1);
995 while (ret == GST_FLOW_OK) {
996 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
999 if (demux->level_up) {
1005 case GST_MATROSKA_ID_CONTENTENCODING:
1006 ret = gst_matroska_demux_read_track_encoding (demux, context);
1009 GST_WARNING_OBJECT (demux,
1010 "Unknown ContentEncodings subelement 0x%x - ignoring", id);
1011 ret = gst_ebml_read_skip (ebml);
1015 if (demux->level_up) {
1021 DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncodings", ret);
1022 if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)
1025 /* Sort encodings according to their order */
1026 g_array_sort (context->encodings,
1027 (GCompareFunc) gst_matroska_demux_encoding_cmp);
1029 return gst_matroska_decode_content_encodings (context->encodings);
1033 gst_matroska_demux_tracknumber_unique (GstMatroskaDemux * demux, guint64 num)
1037 g_assert (demux->src->len == demux->num_streams);
1038 for (i = 0; i < demux->src->len; i++) {
1039 GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
1041 if (context->num == num)
1048 static GstFlowReturn
1049 gst_matroska_demux_add_stream (GstMatroskaDemux * demux)
1051 GstElementClass *klass = GST_ELEMENT_GET_CLASS (demux);
1052 GstEbmlRead *ebml = GST_EBML_READ (demux);
1053 GstMatroskaTrackContext *context;
1054 GstPadTemplate *templ = NULL;
1055 GstCaps *caps = NULL;
1056 gchar *padname = NULL;
1059 GstTagList *list = NULL;
1060 gchar *codec = NULL;
1062 DEBUG_ELEMENT_START (demux, ebml, "TrackEntry");
1064 /* start with the master */
1065 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
1066 DEBUG_ELEMENT_STOP (demux, ebml, "TrackEntry", ret);
1070 /* allocate generic... if we know the type, we'll g_renew()
1071 * with the precise type */
1072 context = g_new0 (GstMatroskaTrackContext, 1);
1073 g_ptr_array_add (demux->src, context);
1074 context->index = demux->num_streams;
1075 context->index_writer_id = -1;
1076 context->type = 0; /* no type yet */
1077 context->default_duration = 0;
1078 context->pos = GST_CLOCK_TIME_NONE;
1079 context->set_discont = TRUE;
1080 context->timecodescale = 1.0;
1082 GST_MATROSKA_TRACK_ENABLED | GST_MATROSKA_TRACK_DEFAULT |
1083 GST_MATROSKA_TRACK_LACING;
1084 context->last_flow = GST_FLOW_OK;
1085 demux->num_streams++;
1086 g_assert (demux->src->len == demux->num_streams);
1088 GST_DEBUG_OBJECT (demux, "Stream number %d", context->index);
1090 /* try reading the trackentry headers */
1091 while (ret == GST_FLOW_OK) {
1092 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
1095 if (demux->level_up) {
1101 /* track number (unique stream ID) */
1102 case GST_MATROSKA_ID_TRACKNUMBER:{
1105 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1109 GST_ERROR_OBJECT (demux, "Invalid TrackNumber 0");
1110 ret = GST_FLOW_ERROR;
1112 } else if (!gst_matroska_demux_tracknumber_unique (demux, num)) {
1113 GST_ERROR_OBJECT (demux, "TrackNumber %" G_GUINT64_FORMAT
1114 " is not unique", num);
1115 ret = GST_FLOW_ERROR;
1119 GST_DEBUG_OBJECT (demux, "TrackNumber: %" G_GUINT64_FORMAT, num);
1123 /* track UID (unique identifier) */
1124 case GST_MATROSKA_ID_TRACKUID:{
1127 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1131 GST_ERROR_OBJECT (demux, "Invalid TrackUID 0");
1132 ret = GST_FLOW_ERROR;
1136 GST_DEBUG_OBJECT (demux, "TrackUID: %" G_GUINT64_FORMAT, num);
1141 /* track type (video, audio, combined, subtitle, etc.) */
1142 case GST_MATROSKA_ID_TRACKTYPE:{
1145 if ((ret = gst_ebml_read_uint (ebml, &id, &track_type)) != GST_FLOW_OK) {
1149 if (context->type != 0 && context->type != track_type) {
1150 GST_WARNING_OBJECT (demux,
1151 "More than one tracktype defined in a TrackEntry - skipping");
1153 } else if (track_type < 1 || track_type > 254) {
1154 GST_WARNING_OBJECT (demux, "Invalid TrackType %" G_GUINT64_FORMAT,
1159 GST_DEBUG_OBJECT (demux, "TrackType: %" G_GUINT64_FORMAT, track_type);
1161 /* ok, so we're actually going to reallocate this thing */
1162 switch (track_type) {
1163 case GST_MATROSKA_TRACK_TYPE_VIDEO:
1164 gst_matroska_track_init_video_context (&context);
1166 case GST_MATROSKA_TRACK_TYPE_AUDIO:
1167 gst_matroska_track_init_audio_context (&context);
1169 case GST_MATROSKA_TRACK_TYPE_SUBTITLE:
1170 gst_matroska_track_init_subtitle_context (&context);
1172 case GST_MATROSKA_TRACK_TYPE_COMPLEX:
1173 case GST_MATROSKA_TRACK_TYPE_LOGO:
1174 case GST_MATROSKA_TRACK_TYPE_BUTTONS:
1175 case GST_MATROSKA_TRACK_TYPE_CONTROL:
1177 GST_WARNING_OBJECT (demux,
1178 "Unknown or unsupported TrackType %" G_GUINT64_FORMAT,
1183 g_ptr_array_index (demux->src, demux->num_streams - 1) = context;
1187 /* tracktype specific stuff for video */
1188 case GST_MATROSKA_ID_TRACKVIDEO:{
1189 GstMatroskaTrackVideoContext *videocontext;
1191 DEBUG_ELEMENT_START (demux, ebml, "TrackVideo");
1193 if (!gst_matroska_track_init_video_context (&context)) {
1194 GST_WARNING_OBJECT (demux,
1195 "TrackVideo element in non-video track - ignoring track");
1196 ret = GST_FLOW_ERROR;
1198 } else if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
1201 videocontext = (GstMatroskaTrackVideoContext *) context;
1202 g_ptr_array_index (demux->src, demux->num_streams - 1) = context;
1204 while (ret == GST_FLOW_OK) {
1206 gst_ebml_peek_id (ebml, &demux->level_up,
1207 &id)) != GST_FLOW_OK)
1210 if (demux->level_up) {
1216 /* Should be one level up but some broken muxers write it here. */
1217 case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{
1220 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1224 GST_WARNING_OBJECT (demux, "Invalid TrackDefaultDuration 0");
1228 GST_DEBUG_OBJECT (demux,
1229 "TrackDefaultDuration: %" G_GUINT64_FORMAT, num);
1230 context->default_duration = num;
1234 /* video framerate */
1235 /* NOTE: This one is here only for backward compatibility.
1236 * Use _TRACKDEFAULDURATION one level up. */
1237 case GST_MATROSKA_ID_VIDEOFRAMERATE:{
1240 if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
1244 GST_WARNING_OBJECT (demux, "Invalid TrackVideoFPS %lf", num);
1248 GST_DEBUG_OBJECT (demux, "TrackVideoFrameRate: %lf", num);
1249 if (context->default_duration == 0)
1250 context->default_duration =
1251 gst_gdouble_to_guint64 ((gdouble) GST_SECOND * (1.0 / num));
1252 videocontext->default_fps = num;
1256 /* width of the size to display the video at */
1257 case GST_MATROSKA_ID_VIDEODISPLAYWIDTH:{
1260 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1264 GST_WARNING_OBJECT (demux, "Invalid TrackVideoDisplayWidth 0");
1268 GST_DEBUG_OBJECT (demux,
1269 "TrackVideoDisplayWidth: %" G_GUINT64_FORMAT, num);
1270 videocontext->display_width = num;
1274 /* height of the size to display the video at */
1275 case GST_MATROSKA_ID_VIDEODISPLAYHEIGHT:{
1278 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1282 GST_WARNING_OBJECT (demux, "Invalid TrackVideoDisplayHeight 0");
1286 GST_DEBUG_OBJECT (demux,
1287 "TrackVideoDisplayHeight: %" G_GUINT64_FORMAT, num);
1288 videocontext->display_height = num;
1292 /* width of the video in the file */
1293 case GST_MATROSKA_ID_VIDEOPIXELWIDTH:{
1296 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1300 GST_WARNING_OBJECT (demux, "Invalid TrackVideoPixelWidth 0");
1304 GST_DEBUG_OBJECT (demux,
1305 "TrackVideoPixelWidth: %" G_GUINT64_FORMAT, num);
1306 videocontext->pixel_width = num;
1310 /* height of the video in the file */
1311 case GST_MATROSKA_ID_VIDEOPIXELHEIGHT:{
1314 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1318 GST_WARNING_OBJECT (demux, "Invalid TrackVideoPixelHeight 0");
1322 GST_DEBUG_OBJECT (demux,
1323 "TrackVideoPixelHeight: %" G_GUINT64_FORMAT, num);
1324 videocontext->pixel_height = num;
1328 /* whether the video is interlaced */
1329 case GST_MATROSKA_ID_VIDEOFLAGINTERLACED:{
1332 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1336 context->flags |= GST_MATROSKA_VIDEOTRACK_INTERLACED;
1338 context->flags &= ~GST_MATROSKA_VIDEOTRACK_INTERLACED;
1339 GST_DEBUG_OBJECT (demux, "TrackVideoInterlaced: %d",
1340 (context->flags & GST_MATROSKA_VIDEOTRACK_INTERLACED) ? 1 :
1345 /* aspect ratio behaviour */
1346 case GST_MATROSKA_ID_VIDEOASPECTRATIOTYPE:{
1349 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1352 if (num != GST_MATROSKA_ASPECT_RATIO_MODE_FREE &&
1353 num != GST_MATROSKA_ASPECT_RATIO_MODE_KEEP &&
1354 num != GST_MATROSKA_ASPECT_RATIO_MODE_FIXED) {
1355 GST_WARNING_OBJECT (demux,
1356 "Unknown TrackVideoAspectRatioType 0x%x", (guint) num);
1359 GST_DEBUG_OBJECT (demux,
1360 "TrackVideoAspectRatioType: %" G_GUINT64_FORMAT, num);
1361 videocontext->asr_mode = num;
1365 /* colourspace (only matters for raw video) fourcc */
1366 case GST_MATROSKA_ID_VIDEOCOLOURSPACE:{
1371 gst_ebml_read_binary (ebml, &id, &data,
1372 &datalen)) != GST_FLOW_OK)
1377 GST_WARNING_OBJECT (demux,
1378 "Invalid TrackVideoColourSpace length %" G_GUINT64_FORMAT,
1383 memcpy (&videocontext->fourcc, data, 4);
1384 GST_DEBUG_OBJECT (demux,
1385 "TrackVideoColourSpace: %" GST_FOURCC_FORMAT,
1386 GST_FOURCC_ARGS (videocontext->fourcc));
1392 GST_WARNING_OBJECT (demux,
1393 "Unknown TrackVideo subelement 0x%x - ignoring", id);
1395 case GST_MATROSKA_ID_VIDEOSTEREOMODE:
1396 case GST_MATROSKA_ID_VIDEODISPLAYUNIT:
1397 case GST_MATROSKA_ID_VIDEOPIXELCROPBOTTOM:
1398 case GST_MATROSKA_ID_VIDEOPIXELCROPTOP:
1399 case GST_MATROSKA_ID_VIDEOPIXELCROPLEFT:
1400 case GST_MATROSKA_ID_VIDEOPIXELCROPRIGHT:
1401 case GST_MATROSKA_ID_VIDEOGAMMAVALUE:
1402 ret = gst_ebml_read_skip (ebml);
1406 if (demux->level_up) {
1412 DEBUG_ELEMENT_STOP (demux, ebml, "TrackVideo", ret);
1416 /* tracktype specific stuff for audio */
1417 case GST_MATROSKA_ID_TRACKAUDIO:{
1418 GstMatroskaTrackAudioContext *audiocontext;
1420 DEBUG_ELEMENT_START (demux, ebml, "TrackAudio");
1422 if (!gst_matroska_track_init_audio_context (&context)) {
1423 GST_WARNING_OBJECT (demux,
1424 "TrackAudio element in non-audio track - ignoring track");
1425 ret = GST_FLOW_ERROR;
1429 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
1432 audiocontext = (GstMatroskaTrackAudioContext *) context;
1433 g_ptr_array_index (demux->src, demux->num_streams - 1) = context;
1435 while (ret == GST_FLOW_OK) {
1437 gst_ebml_peek_id (ebml, &demux->level_up,
1438 &id)) != GST_FLOW_OK)
1441 if (demux->level_up) {
1448 case GST_MATROSKA_ID_AUDIOSAMPLINGFREQ:{
1451 if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
1456 GST_WARNING_OBJECT (demux,
1457 "Invalid TrackAudioSamplingFrequency %lf", num);
1461 GST_DEBUG_OBJECT (demux, "TrackAudioSamplingFrequency: %lf", num);
1462 audiocontext->samplerate = num;
1467 case GST_MATROSKA_ID_AUDIOBITDEPTH:{
1470 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1474 GST_WARNING_OBJECT (demux, "Invalid TrackAudioBitDepth 0");
1478 GST_DEBUG_OBJECT (demux, "TrackAudioBitDepth: %" G_GUINT64_FORMAT,
1480 audiocontext->bitdepth = num;
1485 case GST_MATROSKA_ID_AUDIOCHANNELS:{
1488 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1492 GST_WARNING_OBJECT (demux, "Invalid TrackAudioChannels 0");
1496 GST_DEBUG_OBJECT (demux, "TrackAudioChannels: %" G_GUINT64_FORMAT,
1498 audiocontext->channels = num;
1503 GST_WARNING_OBJECT (demux,
1504 "Unknown TrackAudio subelement 0x%x - ignoring", id);
1506 case GST_MATROSKA_ID_AUDIOCHANNELPOSITIONS:
1507 case GST_MATROSKA_ID_AUDIOOUTPUTSAMPLINGFREQ:
1508 ret = gst_ebml_read_skip (ebml);
1512 if (demux->level_up) {
1518 DEBUG_ELEMENT_STOP (demux, ebml, "TrackAudio", ret);
1523 /* codec identifier */
1524 case GST_MATROSKA_ID_CODECID:{
1527 if ((ret = gst_ebml_read_ascii (ebml, &id, &text)) != GST_FLOW_OK)
1530 GST_DEBUG_OBJECT (demux, "CodecID: %s", GST_STR_NULL (text));
1531 context->codec_id = text;
1535 /* codec private data */
1536 case GST_MATROSKA_ID_CODECPRIVATE:{
1541 gst_ebml_read_binary (ebml, &id, &data, &size)) != GST_FLOW_OK)
1544 context->codec_priv = data;
1545 context->codec_priv_size = size;
1547 GST_DEBUG_OBJECT (demux, "CodecPrivate of size %" G_GUINT64_FORMAT,
1552 /* name of the codec */
1553 case GST_MATROSKA_ID_CODECNAME:{
1556 if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
1559 GST_DEBUG_OBJECT (demux, "CodecName: %s", GST_STR_NULL (text));
1560 context->codec_name = text;
1564 /* name of this track */
1565 case GST_MATROSKA_ID_TRACKNAME:{
1568 if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
1571 context->name = text;
1572 GST_DEBUG_OBJECT (demux, "TrackName: %s", GST_STR_NULL (text));
1576 /* language (matters for audio/subtitles, mostly) */
1577 case GST_MATROSKA_ID_TRACKLANGUAGE:{
1580 if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
1584 context->language = text;
1587 if (strlen (context->language) >= 4 && context->language[3] == '-')
1588 context->language[3] = '\0';
1590 GST_DEBUG_OBJECT (demux, "TrackLanguage: %s",
1591 GST_STR_NULL (context->language));
1595 /* whether this is actually used */
1596 case GST_MATROSKA_ID_TRACKFLAGENABLED:{
1599 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1603 context->flags |= GST_MATROSKA_TRACK_ENABLED;
1605 context->flags &= ~GST_MATROSKA_TRACK_ENABLED;
1607 GST_DEBUG_OBJECT (demux, "TrackEnabled: %d",
1608 (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
1612 /* whether it's the default for this track type */
1613 case GST_MATROSKA_ID_TRACKFLAGDEFAULT:{
1616 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1620 context->flags |= GST_MATROSKA_TRACK_DEFAULT;
1622 context->flags &= ~GST_MATROSKA_TRACK_DEFAULT;
1624 GST_DEBUG_OBJECT (demux, "TrackDefault: %d",
1625 (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
1629 /* whether the track must be used during playback */
1630 case GST_MATROSKA_ID_TRACKFLAGFORCED:{
1633 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1637 context->flags |= GST_MATROSKA_TRACK_FORCED;
1639 context->flags &= ~GST_MATROSKA_TRACK_FORCED;
1641 GST_DEBUG_OBJECT (demux, "TrackForced: %d",
1642 (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
1646 /* lacing (like MPEG, where blocks don't end/start on frame
1648 case GST_MATROSKA_ID_TRACKFLAGLACING:{
1651 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1655 context->flags |= GST_MATROSKA_TRACK_LACING;
1657 context->flags &= ~GST_MATROSKA_TRACK_LACING;
1659 GST_DEBUG_OBJECT (demux, "TrackLacing: %d",
1660 (context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
1664 /* default length (in time) of one data block in this track */
1665 case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{
1668 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
1673 GST_WARNING_OBJECT (demux, "Invalid TrackDefaultDuration 0");
1677 GST_DEBUG_OBJECT (demux, "TrackDefaultDuration: %" G_GUINT64_FORMAT,
1679 context->default_duration = num;
1683 case GST_MATROSKA_ID_CONTENTENCODINGS:{
1684 ret = gst_matroska_demux_read_track_encodings (demux, context);
1688 case GST_MATROSKA_ID_TRACKTIMECODESCALE:{
1691 if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
1695 GST_WARNING_OBJECT (demux, "Invalid TrackTimeCodeScale %lf", num);
1699 GST_DEBUG_OBJECT (demux, "TrackTimeCodeScale: %lf", num);
1700 context->timecodescale = num;
1705 GST_WARNING ("Unknown TrackEntry subelement 0x%x - ignoring", id);
1708 /* we ignore these because they're nothing useful (i.e. crap)
1709 * or simply not implemented yet. */
1710 case GST_MATROSKA_ID_TRACKMINCACHE:
1711 case GST_MATROSKA_ID_TRACKMAXCACHE:
1712 case GST_MATROSKA_ID_MAXBLOCKADDITIONID:
1713 case GST_MATROSKA_ID_TRACKATTACHMENTLINK:
1714 case GST_MATROSKA_ID_TRACKOVERLAY:
1715 case GST_MATROSKA_ID_TRACKTRANSLATE:
1716 case GST_MATROSKA_ID_TRACKOFFSET:
1717 case GST_MATROSKA_ID_CODECSETTINGS:
1718 case GST_MATROSKA_ID_CODECINFOURL:
1719 case GST_MATROSKA_ID_CODECDOWNLOADURL:
1720 case GST_MATROSKA_ID_CODECDECODEALL:
1721 ret = gst_ebml_read_skip (ebml);
1725 if (demux->level_up) {
1731 DEBUG_ELEMENT_STOP (demux, ebml, "TrackEntry", ret);
1733 /* Decode codec private data if necessary */
1734 if (context->encodings && context->encodings->len > 0 && context->codec_priv
1735 && context->codec_priv_size > 0) {
1736 if (!gst_matroska_decode_data (context->encodings,
1737 &context->codec_priv, &context->codec_priv_size,
1738 GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA, TRUE)) {
1739 GST_WARNING_OBJECT (demux, "Decoding codec private data failed");
1740 ret = GST_FLOW_ERROR;
1744 if (context->type == 0 || context->codec_id == NULL || (ret != GST_FLOW_OK
1745 && ret != GST_FLOW_UNEXPECTED)) {
1746 if (ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED)
1747 GST_WARNING_OBJECT (ebml, "Unknown stream/codec in track entry header");
1749 demux->num_streams--;
1750 g_ptr_array_remove_index (demux->src, demux->num_streams);
1751 g_assert (demux->src->len == demux->num_streams);
1753 gst_matroska_track_free (context);
1759 /* now create the GStreamer connectivity */
1760 switch (context->type) {
1761 case GST_MATROSKA_TRACK_TYPE_VIDEO:{
1762 GstMatroskaTrackVideoContext *videocontext =
1763 (GstMatroskaTrackVideoContext *) context;
1765 padname = g_strdup_printf ("video_%02d", demux->num_v_streams++);
1766 templ = gst_element_class_get_pad_template (klass, "video_%02d");
1767 caps = gst_matroska_demux_video_caps (videocontext,
1769 (guint8 *) context->codec_priv, context->codec_priv_size, &codec);
1771 list = gst_tag_list_new ();
1772 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
1773 GST_TAG_VIDEO_CODEC, codec, NULL);
1779 case GST_MATROSKA_TRACK_TYPE_AUDIO:{
1780 GstMatroskaTrackAudioContext *audiocontext =
1781 (GstMatroskaTrackAudioContext *) context;
1783 padname = g_strdup_printf ("audio_%02d", demux->num_a_streams++);
1784 templ = gst_element_class_get_pad_template (klass, "audio_%02d");
1785 caps = gst_matroska_demux_audio_caps (audiocontext,
1787 context->codec_priv, context->codec_priv_size, &codec);
1789 list = gst_tag_list_new ();
1790 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
1791 GST_TAG_AUDIO_CODEC, codec, NULL);
1797 case GST_MATROSKA_TRACK_TYPE_SUBTITLE:{
1798 GstMatroskaTrackSubtitleContext *subtitlecontext =
1799 (GstMatroskaTrackSubtitleContext *) context;
1801 padname = g_strdup_printf ("subtitle_%02d", demux->num_t_streams++);
1802 templ = gst_element_class_get_pad_template (klass, "subtitle_%02d");
1803 caps = gst_matroska_demux_subtitle_caps (subtitlecontext,
1804 context->codec_id, context->codec_priv, context->codec_priv_size);
1808 case GST_MATROSKA_TRACK_TYPE_COMPLEX:
1809 case GST_MATROSKA_TRACK_TYPE_LOGO:
1810 case GST_MATROSKA_TRACK_TYPE_BUTTONS:
1811 case GST_MATROSKA_TRACK_TYPE_CONTROL:
1813 /* we should already have quit by now */
1814 g_assert_not_reached ();
1817 if ((context->language == NULL || *context->language == '\0') &&
1818 (context->type == GST_MATROSKA_TRACK_TYPE_AUDIO ||
1819 context->type == GST_MATROSKA_TRACK_TYPE_SUBTITLE)) {
1820 GST_LOG ("stream %d: language=eng (assuming default)", context->index);
1821 context->language = g_strdup ("eng");
1824 if (context->language) {
1828 list = gst_tag_list_new ();
1830 /* Matroska contains ISO 639-2B codes, we want ISO 639-1 */
1831 lang = gst_tag_get_language_code (context->language);
1832 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
1833 GST_TAG_LANGUAGE_CODE, (lang) ? lang : context->language, NULL);
1837 GST_WARNING_OBJECT (demux, "could not determine caps for stream with "
1838 "codec_id='%s'", context->codec_id);
1839 switch (context->type) {
1840 case GST_MATROSKA_TRACK_TYPE_VIDEO:
1841 caps = gst_caps_new_simple ("video/x-unknown", NULL);
1843 case GST_MATROSKA_TRACK_TYPE_AUDIO:
1844 caps = gst_caps_new_simple ("audio/x-unknown", NULL);
1846 case GST_MATROSKA_TRACK_TYPE_SUBTITLE:
1847 caps = gst_caps_new_simple ("application/x-subtitle-unknown", NULL);
1849 case GST_MATROSKA_TRACK_TYPE_COMPLEX:
1851 caps = gst_caps_new_simple ("application/x-matroska-unknown", NULL);
1854 gst_caps_set_simple (caps, "codec-id", G_TYPE_STRING, context->codec_id,
1858 /* the pad in here */
1859 context->pad = gst_pad_new_from_template (templ, padname);
1860 context->caps = caps;
1862 gst_pad_set_event_function (context->pad,
1863 GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_src_event));
1864 gst_pad_set_query_type_function (context->pad,
1865 GST_DEBUG_FUNCPTR (gst_matroska_demux_get_src_query_types));
1866 gst_pad_set_query_function (context->pad,
1867 GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_src_query));
1869 GST_INFO_OBJECT (demux, "Adding pad '%s' with caps %" GST_PTR_FORMAT,
1872 context->pending_tags = list;
1874 gst_pad_set_element_private (context->pad, context);
1876 gst_pad_use_fixed_caps (context->pad);
1877 gst_pad_set_caps (context->pad, context->caps);
1878 gst_pad_set_active (context->pad, TRUE);
1879 gst_element_add_pad (GST_ELEMENT (demux), context->pad);
1887 static const GstQueryType *
1888 gst_matroska_demux_get_src_query_types (GstPad * pad)
1890 static const GstQueryType query_types[] = {
1901 gst_matroska_demux_query (GstMatroskaDemux * demux, GstPad * pad,
1904 gboolean res = FALSE;
1905 GstMatroskaTrackContext *context = NULL;
1908 context = gst_pad_get_element_private (pad);
1911 switch (GST_QUERY_TYPE (query)) {
1912 case GST_QUERY_POSITION:
1916 gst_query_parse_position (query, &format, NULL);
1918 if (format == GST_FORMAT_TIME) {
1919 GST_OBJECT_LOCK (demux);
1921 gst_query_set_position (query, GST_FORMAT_TIME, context->pos);
1923 gst_query_set_position (query, GST_FORMAT_TIME,
1924 demux->segment.last_stop);
1925 GST_OBJECT_UNLOCK (demux);
1926 } else if (format == GST_FORMAT_DEFAULT && context
1927 && context->default_duration) {
1928 GST_OBJECT_LOCK (demux);
1929 gst_query_set_position (query, GST_FORMAT_DEFAULT,
1930 context->pos / context->default_duration);
1931 GST_OBJECT_UNLOCK (demux);
1933 GST_DEBUG_OBJECT (demux,
1934 "only position query in TIME and DEFAULT format is supported");
1940 case GST_QUERY_DURATION:
1944 gst_query_parse_duration (query, &format, NULL);
1946 if (format == GST_FORMAT_TIME) {
1947 GST_OBJECT_LOCK (demux);
1948 gst_query_set_duration (query, GST_FORMAT_TIME, demux->duration);
1949 GST_OBJECT_UNLOCK (demux);
1950 } else if (format == GST_FORMAT_DEFAULT && context
1951 && context->default_duration) {
1952 GST_OBJECT_LOCK (demux);
1953 gst_query_set_duration (query, GST_FORMAT_DEFAULT,
1954 demux->duration / context->default_duration);
1955 GST_OBJECT_UNLOCK (demux);
1957 GST_DEBUG_OBJECT (demux,
1958 "only duration query in TIME and DEFAULT format is supported");
1965 case GST_QUERY_SEEKING:{
1969 gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
1971 if (fmt != GST_FORMAT_TIME || !demux->index) {
1972 gst_query_set_seeking (query, fmt, FALSE, -1, -1);
1974 gst_query_set_seeking (query, GST_FORMAT_TIME, TRUE, 0,
1981 res = gst_pad_query_default (pad, query);
1989 gst_matroska_demux_element_query (GstElement * element, GstQuery * query)
1991 return gst_matroska_demux_query (GST_MATROSKA_DEMUX (element), NULL, query);
1995 gst_matroska_demux_handle_src_query (GstPad * pad, GstQuery * query)
1998 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (gst_pad_get_parent (pad));
2000 ret = gst_matroska_demux_query (demux, pad, query);
2002 gst_object_unref (demux);
2008 gst_matroska_index_seek_find (GstMatroskaIndex * i1, GstClockTime * time,
2011 if (i1->time < *time)
2013 else if (i1->time > *time)
2019 static GstMatroskaIndex *
2020 gst_matroskademux_do_index_seek (GstMatroskaDemux * demux,
2021 GstMatroskaTrackContext * track, gint64 seek_pos, gint64 segment_stop,
2024 GstMatroskaIndex *entry = NULL;
2027 if (!demux->index || !demux->index->len)
2030 /* find entry just before or at the requested position */
2031 if (track && track->index_table)
2032 index = track->index_table;
2034 index = demux->index;
2037 gst_util_array_binary_search (index->data, index->len,
2038 sizeof (GstMatroskaIndex),
2039 (GCompareDataFunc) gst_matroska_index_seek_find, GST_SEARCH_MODE_BEFORE,
2043 entry = &g_array_index (index, GstMatroskaIndex, 0);
2048 /* takes ownership of taglist */
2050 gst_matroska_demux_found_global_tag (GstMatroskaDemux * demux,
2051 GstTagList * taglist)
2053 if (demux->global_tags) {
2054 /* nothing sent yet, add to cache */
2055 gst_tag_list_insert (demux->global_tags, taglist, GST_TAG_MERGE_APPEND);
2056 gst_tag_list_free (taglist);
2058 /* hm, already sent, no need to cache and wait anymore */
2059 GST_DEBUG_OBJECT (demux, "Sending late global tags %" GST_PTR_FORMAT,
2061 gst_element_found_tags (GST_ELEMENT (demux), taglist);
2065 /* takes ownership of the passed event! */
2067 gst_matroska_demux_send_event (GstMatroskaDemux * demux, GstEvent * event)
2069 gboolean is_newsegment;
2070 gboolean ret = TRUE;
2073 g_return_val_if_fail (event != NULL, FALSE);
2075 GST_DEBUG_OBJECT (demux, "Sending event of type %s to all source pads",
2076 GST_EVENT_TYPE_NAME (event));
2078 is_newsegment = (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT);
2080 /* FIXME: access to demux->src is not thread-safe here */
2081 g_assert (demux->src->len == demux->num_streams);
2082 for (i = 0; i < demux->src->len; i++) {
2083 GstMatroskaTrackContext *stream;
2085 stream = g_ptr_array_index (demux->src, i);
2086 gst_event_ref (event);
2087 gst_pad_push_event (stream->pad, event);
2089 /* FIXME: send global tags before stream tags */
2090 if (G_UNLIKELY (is_newsegment && stream->pending_tags != NULL)) {
2091 GST_DEBUG_OBJECT (demux, "Sending pending_tags %p for pad %s:%s : %"
2092 GST_PTR_FORMAT, stream->pending_tags,
2093 GST_DEBUG_PAD_NAME (stream->pad), stream->pending_tags);
2094 gst_element_found_tags_for_pad (GST_ELEMENT (demux), stream->pad,
2095 stream->pending_tags);
2096 stream->pending_tags = NULL;
2100 if (G_UNLIKELY (is_newsegment && demux->global_tags != NULL)) {
2101 gst_tag_list_add (demux->global_tags, GST_TAG_MERGE_REPLACE,
2102 GST_TAG_CONTAINER_FORMAT, "Matroska", NULL);
2103 GST_DEBUG_OBJECT (demux, "Sending global_tags %p : %" GST_PTR_FORMAT,
2104 demux->global_tags, demux->global_tags);
2105 gst_element_found_tags (GST_ELEMENT (demux), demux->global_tags);
2106 demux->global_tags = NULL;
2109 gst_event_unref (event);
2114 gst_matroska_demux_element_send_event (GstElement * element, GstEvent * event)
2116 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
2119 g_return_val_if_fail (event != NULL, FALSE);
2121 if (GST_EVENT_TYPE (event) == GST_EVENT_SEEK) {
2122 res = gst_matroska_demux_handle_seek_event (demux, NULL, event);
2124 GST_WARNING_OBJECT (demux, "Unhandled event of type %s",
2125 GST_EVENT_TYPE_NAME (event));
2128 gst_event_unref (event);
2133 gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux,
2134 GstPad * pad, GstEvent * event)
2136 GstMatroskaIndex *entry = NULL;
2138 GstSeekType cur_type, stop_type;
2140 gboolean flush, keyunit;
2143 gint64 segment_start, segment_stop;
2145 GstMatroskaTrackContext *track = NULL;
2148 track = gst_pad_get_element_private (pad);
2150 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
2153 /* we can only seek on time */
2154 if (format != GST_FORMAT_TIME) {
2155 GST_DEBUG_OBJECT (demux, "Can only seek on TIME");
2159 /* cannot yet do backwards playback */
2161 GST_DEBUG_OBJECT (demux, "Can only seek with positive rate");
2165 /* check sanity before we start flushing and all that */
2166 if (cur_type == GST_SEEK_TYPE_SET) {
2167 GST_OBJECT_LOCK (demux);
2169 gst_matroskademux_do_index_seek (demux, track, cur, -1,
2171 GST_DEBUG_OBJECT (demux, "No matching seek entry in index");
2172 GST_OBJECT_UNLOCK (demux);
2175 GST_DEBUG_OBJECT (demux, "Seek position looks sane");
2176 GST_OBJECT_UNLOCK (demux);
2179 flush = !!(flags & GST_SEEK_FLAG_FLUSH);
2180 keyunit = !!(flags & GST_SEEK_FLAG_KEY_UNIT);
2183 GST_DEBUG_OBJECT (demux, "Starting flush");
2184 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
2185 gst_matroska_demux_send_event (demux, gst_event_new_flush_start ());
2187 gst_pad_pause_task (demux->sinkpad);
2190 /* now grab the stream lock so that streaming cannot continue, for
2191 * non flushing seeks when the element is in PAUSED this could block
2193 GST_PAD_STREAM_LOCK (demux->sinkpad);
2195 GST_OBJECT_LOCK (demux);
2197 /* if nothing configured, play complete file */
2198 if (!GST_CLOCK_TIME_IS_VALID (cur))
2200 /* prevent some calculations and comparisons involving INVALID */
2201 segment_start = demux->segment.start;
2202 segment_stop = demux->segment.stop;
2203 if (!GST_CLOCK_TIME_IS_VALID (segment_start))
2206 if (cur_type == GST_SEEK_TYPE_SET)
2207 segment_start = cur;
2208 else if (cur_type == GST_SEEK_TYPE_CUR)
2209 segment_start += cur;
2211 if (stop_type == GST_SEEK_TYPE_SET) {
2212 segment_stop = stop;
2213 } else if (stop_type == GST_SEEK_TYPE_CUR) {
2214 if (GST_CLOCK_TIME_IS_VALID (segment_stop)
2215 && GST_CLOCK_TIME_IS_VALID (stop))
2216 segment_stop += stop;
2221 GST_DEBUG_OBJECT (demux,
2222 "New segment positions: %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT,
2223 GST_TIME_ARGS (segment_start), GST_TIME_ARGS (segment_stop));
2226 entry = gst_matroskademux_do_index_seek (demux, track, segment_start,
2227 segment_stop, keyunit);
2230 GST_DEBUG_OBJECT (demux, "No matching seek entry in index");
2234 /* seek (relative to matroska segment) */
2235 if (gst_ebml_read_seek (GST_EBML_READ (demux),
2236 entry->pos + demux->ebml_segment_start) != GST_FLOW_OK) {
2237 GST_DEBUG_OBJECT (demux, "Failed to seek to offset %" G_GUINT64_FORMAT,
2238 entry->pos + demux->ebml_segment_start);
2242 GST_DEBUG_OBJECT (demux, "Seeked to offset %" G_GUINT64_FORMAT, entry->pos +
2243 demux->ebml_segment_start);
2246 GST_DEBUG_OBJECT (demux, "seek to key unit, adjusting segment start to %"
2247 GST_TIME_FORMAT, GST_TIME_ARGS (entry->time));
2248 segment_start = entry->time;
2251 GST_OBJECT_UNLOCK (demux);
2254 GST_DEBUG_OBJECT (demux, "Stopping flush");
2255 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop ());
2256 gst_matroska_demux_send_event (demux, gst_event_new_flush_stop ());
2257 } else if (demux->segment_running) {
2258 GST_DEBUG_OBJECT (demux, "Closing currently running segment");
2260 GST_OBJECT_LOCK (demux);
2261 if (demux->close_segment)
2262 gst_event_unref (demux->close_segment);
2264 demux->close_segment = gst_event_new_new_segment (TRUE,
2265 demux->segment.rate, GST_FORMAT_TIME, demux->segment.start,
2266 demux->segment.last_stop, demux->segment.time);
2267 GST_OBJECT_UNLOCK (demux);
2270 GST_OBJECT_LOCK (demux);
2271 GST_DEBUG_OBJECT (demux, "Committing new seek segment");
2273 demux->segment.rate = rate;
2274 demux->segment.flags = flags;
2276 demux->segment.start = segment_start;
2277 demux->segment.stop = segment_stop;
2279 GST_OBJECT_UNLOCK (demux);
2281 /* notify start of new segment */
2282 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
2285 msg = gst_message_new_segment_start (GST_OBJECT (demux),
2286 GST_FORMAT_TIME, demux->segment.start);
2287 gst_element_post_message (GST_ELEMENT (demux), msg);
2290 GST_OBJECT_LOCK (demux);
2291 if (demux->new_segment)
2292 gst_event_unref (demux->new_segment);
2293 demux->new_segment = gst_event_new_new_segment (FALSE, rate,
2294 GST_FORMAT_TIME, segment_start, segment_stop, segment_start);
2295 GST_OBJECT_UNLOCK (demux);
2297 /* update the time */
2298 g_assert (demux->src->len == demux->num_streams);
2299 for (i = 0; i < demux->src->len; i++) {
2300 GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
2301 context->pos = entry->time;
2302 context->set_discont = TRUE;
2303 context->last_flow = GST_FLOW_OK;
2305 demux->segment.last_stop = entry->time;
2306 demux->seek_block = entry->block;
2308 /* restart our task since it might have been stopped when we did the
2310 demux->segment_running = TRUE;
2311 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_matroska_demux_loop,
2314 /* streaming can continue now */
2315 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
2321 /* FIXME: shouldn't we either make it a real error or start the task
2322 * function again so that things can continue from where they left off? */
2323 GST_DEBUG_OBJECT (demux, "Got a seek error");
2324 GST_OBJECT_UNLOCK (demux);
2325 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
2331 gst_matroska_demux_handle_src_event (GstPad * pad, GstEvent * event)
2333 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (gst_pad_get_parent (pad));
2334 gboolean res = TRUE;
2336 switch (GST_EVENT_TYPE (event)) {
2337 case GST_EVENT_SEEK:
2338 res = gst_matroska_demux_handle_seek_event (demux, pad, event);
2339 gst_event_unref (event);
2342 /* events we don't need to handle */
2343 case GST_EVENT_NAVIGATION:
2345 gst_event_unref (event);
2349 case GST_EVENT_LATENCY:
2351 res = gst_pad_push_event (demux->sinkpad, event);
2355 gst_object_unref (demux);
2360 static GstFlowReturn
2361 gst_matroska_demux_parse_header (GstMatroskaDemux * demux)
2363 GstEbmlRead *ebml = GST_EBML_READ (demux);
2368 if ((ret = gst_ebml_read_header (ebml, &doctype, &version)) != GST_FLOW_OK)
2371 if (!doctype || strcmp (doctype, "matroska") != 0) {
2372 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
2373 ("Input is not a matroska stream (doctype=%s)",
2374 doctype ? doctype : "none"));
2376 return GST_FLOW_ERROR;
2380 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2381 ("Demuxer version (2) is too old to read stream version %d", version));
2382 return GST_FLOW_ERROR;
2388 static GstFlowReturn
2389 gst_matroska_demux_init_stream (GstMatroskaDemux * demux)
2391 GstEbmlRead *ebml = GST_EBML_READ (demux);
2395 GST_DEBUG_OBJECT (demux, "Init stream");
2397 if ((ret = gst_matroska_demux_parse_header (demux)) != GST_FLOW_OK)
2400 /* find segment, must be the next element but search as long as
2401 * we find it anyway */
2405 if ((ret = gst_ebml_peek_id (ebml, &last_level, &id)) != GST_FLOW_OK) {
2406 GST_DEBUG_OBJECT (demux, "gst_ebml_peek_id() failed!");
2410 if (id == GST_MATROSKA_ID_SEGMENT)
2414 GST_WARNING_OBJECT (demux,
2415 "Expected a Segment ID (0x%x), but received 0x%x!",
2416 GST_MATROSKA_ID_SEGMENT, id);
2418 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
2422 /* we now have a EBML segment */
2423 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
2424 GST_DEBUG_OBJECT (demux, "gst_ebml_read_master() failed!");
2428 GST_DEBUG_OBJECT (demux, "Found Segment start at offset %" G_GUINT64_FORMAT,
2430 /* seeks are from the beginning of the segment,
2431 * after the segment ID/length */
2432 demux->ebml_segment_start = ebml->offset;
2437 static GstFlowReturn
2438 gst_matroska_demux_parse_tracks (GstMatroskaDemux * demux)
2440 GstEbmlRead *ebml = GST_EBML_READ (demux);
2441 GstFlowReturn ret = GST_FLOW_OK;
2444 DEBUG_ELEMENT_START (demux, ebml, "Tracks");
2446 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
2447 DEBUG_ELEMENT_STOP (demux, ebml, "Tracks", ret);
2451 while (ret == GST_FLOW_OK) {
2452 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
2455 if (demux->level_up) {
2461 /* one track within the "all-tracks" header */
2462 case GST_MATROSKA_ID_TRACKENTRY:
2463 ret = gst_matroska_demux_add_stream (demux);
2467 GST_WARNING ("Unknown Track subelement 0x%x - ignoring", id);
2468 ret = gst_ebml_read_skip (ebml);
2472 if (demux->level_up) {
2477 DEBUG_ELEMENT_STOP (demux, ebml, "Tracks", ret);
2479 demux->tracks_parsed = TRUE;
2484 static GstFlowReturn
2485 gst_matroska_demux_parse_index_cuetrack (GstMatroskaDemux * demux,
2488 GstEbmlRead *ebml = GST_EBML_READ (demux);
2491 GstMatroskaIndex idx;
2493 idx.pos = (guint64) - 1;
2495 idx.time = GST_CLOCK_TIME_NONE;
2498 DEBUG_ELEMENT_START (demux, ebml, "CueTrackPositions");
2500 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
2501 DEBUG_ELEMENT_STOP (demux, ebml, "CueTrackPositions", ret);
2505 while (ret == GST_FLOW_OK) {
2506 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
2509 if (demux->level_up) {
2516 case GST_MATROSKA_ID_CUETRACK:
2520 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
2525 GST_WARNING_OBJECT (demux, "Invalid CueTrack 0");
2529 GST_DEBUG_OBJECT (demux, "CueTrack: %" G_GUINT64_FORMAT, num);
2534 /* position in file */
2535 case GST_MATROSKA_ID_CUECLUSTERPOSITION:
2539 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
2542 if (num > G_MAXINT64) {
2543 GST_WARNING_OBJECT (demux, "CueClusterPosition %" G_GUINT64_FORMAT
2552 /* number of block in the cluster */
2553 case GST_MATROSKA_ID_CUEBLOCKNUMBER:
2557 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
2561 GST_WARNING_OBJECT (demux, "Invalid CueBlockNumber 0");
2565 GST_DEBUG_OBJECT (demux, "CueBlockNumber: %" G_GUINT64_FORMAT, num);
2568 /* mild sanity check, disregard strange cases ... */
2569 if (idx.block > G_MAXUINT16) {
2570 GST_DEBUG_OBJECT (demux, "... looks suspicious, ignoring");
2577 GST_WARNING ("Unknown CueTrackPositions subelement 0x%x - ignoring",
2581 case GST_MATROSKA_ID_CUECODECSTATE:
2582 case GST_MATROSKA_ID_CUEREFERENCE:
2583 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
2588 if (demux->level_up) {
2594 DEBUG_ELEMENT_STOP (demux, ebml, "CueTrackPositions", ret);
2596 if ((ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED)
2597 && idx.pos != (guint64) - 1 && idx.track > 0) {
2598 g_array_append_val (demux->index, idx);
2600 } else if (ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED) {
2601 GST_DEBUG_OBJECT (demux, "CueTrackPositions without valid content");
2607 static GstFlowReturn
2608 gst_matroska_demux_parse_index_pointentry (GstMatroskaDemux * demux)
2610 GstEbmlRead *ebml = GST_EBML_READ (demux);
2613 GstClockTime time = GST_CLOCK_TIME_NONE;
2616 DEBUG_ELEMENT_START (demux, ebml, "CuePoint");
2618 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
2619 DEBUG_ELEMENT_STOP (demux, ebml, "CuePoint", ret);
2623 while (ret == GST_FLOW_OK) {
2624 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
2627 if (demux->level_up) {
2633 /* one single index entry ('point') */
2634 case GST_MATROSKA_ID_CUETIME:
2636 if ((ret = gst_ebml_read_uint (ebml, &id, &time)) != GST_FLOW_OK)
2639 GST_DEBUG_OBJECT (demux, "CueTime: %" G_GUINT64_FORMAT, time);
2640 time = time * demux->time_scale;
2644 /* position in the file + track to which it belongs */
2645 case GST_MATROSKA_ID_CUETRACKPOSITIONS:
2648 gst_matroska_demux_parse_index_cuetrack (demux,
2649 &nentries)) != GST_FLOW_OK)
2655 GST_WARNING_OBJECT (demux,
2656 "Unknown CuePoint subelement 0x%x - ignoring", id);
2657 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
2662 if (demux->level_up) {
2668 DEBUG_ELEMENT_STOP (demux, ebml, "CuePoint", ret);
2671 if (time == GST_CLOCK_TIME_NONE) {
2672 GST_WARNING_OBJECT (demux, "CuePoint without valid time");
2673 g_array_remove_range (demux->index, demux->index->len - nentries,
2678 for (i = demux->index->len - nentries; i < demux->index->len; i++) {
2679 GstMatroskaIndex *idx =
2680 &g_array_index (demux->index, GstMatroskaIndex, i);
2683 GST_DEBUG_OBJECT (demux, "Index entry: pos=%" G_GUINT64_FORMAT
2684 ", time=%" GST_TIME_FORMAT ", track=%u, block=%u", idx->pos,
2685 GST_TIME_ARGS (idx->time), (guint) idx->track, (guint) idx->block);
2689 GST_DEBUG_OBJECT (demux, "Empty CuePoint");
2696 gst_matroska_index_compare (GstMatroskaIndex * i1, GstMatroskaIndex * i2)
2698 if (i1->time < i2->time)
2700 else if (i1->time > i2->time)
2702 else if (i1->block < i2->block)
2704 else if (i1->block > i2->block)
2710 static GstFlowReturn
2711 gst_matroska_demux_parse_index (GstMatroskaDemux * demux)
2713 GstEbmlRead *ebml = GST_EBML_READ (demux);
2715 GstFlowReturn ret = GST_FLOW_OK;
2719 g_array_free (demux->index, TRUE);
2721 g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaIndex), 128);
2723 DEBUG_ELEMENT_START (demux, ebml, "Cues");
2725 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
2726 DEBUG_ELEMENT_STOP (demux, ebml, "Cues", ret);
2730 while (ret == GST_FLOW_OK) {
2731 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
2734 if (demux->level_up) {
2740 /* one single index entry ('point') */
2741 case GST_MATROSKA_ID_POINTENTRY:
2742 ret = gst_matroska_demux_parse_index_pointentry (demux);
2746 GST_WARNING ("Unknown Cues subelement 0x%x - ignoring", id);
2747 ret = gst_ebml_read_skip (ebml);
2751 if (demux->level_up) {
2756 DEBUG_ELEMENT_STOP (demux, ebml, "Cues", ret);
2758 /* Sort index by time, smallest time first, for easier searching */
2759 g_array_sort (demux->index, (GCompareFunc) gst_matroska_index_compare);
2761 /* Now sort the track specific index entries into their own arrays */
2762 for (i = 0; i < demux->index->len; i++) {
2763 GstMatroskaIndex *idx = &g_array_index (demux->index, GstMatroskaIndex, i);
2765 GstMatroskaTrackContext *ctx;
2767 if (demux->element_index) {
2770 if (idx->track != 0 &&
2772 gst_matroska_demux_stream_from_num (demux, idx->track)) != -1) {
2773 ctx = g_ptr_array_index (demux->src, track_num);
2775 if (ctx->index_writer_id == -1)
2776 gst_index_get_writer_id (demux->element_index, GST_OBJECT (ctx->pad),
2777 &ctx->index_writer_id);
2778 writer_id = ctx->index_writer_id;
2780 if (demux->element_index_writer_id == -1)
2781 gst_index_get_writer_id (demux->element_index, GST_OBJECT (demux),
2782 &demux->element_index_writer_id);
2783 writer_id = demux->element_index_writer_id;
2786 GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %"
2787 G_GUINT64_FORMAT " for writer id %d", GST_TIME_ARGS (idx->time),
2788 idx->pos, writer_id);
2789 gst_index_add_association (demux->element_index, writer_id,
2790 GST_ASSOCIATION_FLAG_KEY_UNIT, GST_FORMAT_TIME, idx->time,
2791 GST_FORMAT_BYTES, idx->pos + demux->ebml_segment_start, NULL);
2794 if (idx->track == 0)
2797 track_num = gst_matroska_demux_stream_from_num (demux, idx->track);
2798 if (track_num == -1)
2801 ctx = g_ptr_array_index (demux->src, track_num);
2803 if (ctx->index_table == NULL)
2805 g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaIndex), 128);
2807 g_array_append_vals (ctx->index_table, idx, 1);
2810 demux->index_parsed = TRUE;
2815 static GstFlowReturn
2816 gst_matroska_demux_parse_info (GstMatroskaDemux * demux)
2818 GstEbmlRead *ebml = GST_EBML_READ (demux);
2819 GstFlowReturn ret = GST_FLOW_OK;
2822 DEBUG_ELEMENT_START (demux, ebml, "SegmentInfo");
2824 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
2825 DEBUG_ELEMENT_STOP (demux, ebml, "SegmentInfo", ret);
2829 while (ret == GST_FLOW_OK) {
2830 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
2833 if (demux->level_up) {
2839 /* cluster timecode */
2840 case GST_MATROSKA_ID_TIMECODESCALE:{
2843 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
2847 GST_DEBUG_OBJECT (demux, "TimeCodeScale: %" G_GUINT64_FORMAT, num);
2848 demux->time_scale = num;
2852 case GST_MATROSKA_ID_DURATION:{
2856 if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
2860 GST_WARNING_OBJECT (demux, "Invalid duration %lf", num);
2864 GST_DEBUG_OBJECT (demux, "Duration: %lf", num);
2866 dur = gst_gdouble_to_guint64 (num *
2867 gst_guint64_to_gdouble (demux->time_scale));
2868 if (GST_CLOCK_TIME_IS_VALID (dur) && dur <= G_MAXINT64)
2869 demux->duration = dur;
2873 case GST_MATROSKA_ID_WRITINGAPP:{
2876 if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
2879 GST_DEBUG_OBJECT (demux, "WritingApp: %s", GST_STR_NULL (text));
2880 demux->writing_app = text;
2884 case GST_MATROSKA_ID_MUXINGAPP:{
2887 if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
2890 GST_DEBUG_OBJECT (demux, "MuxingApp: %s", GST_STR_NULL (text));
2891 demux->muxing_app = text;
2895 case GST_MATROSKA_ID_DATEUTC:{
2898 if ((ret = gst_ebml_read_date (ebml, &id, &time)) != GST_FLOW_OK)
2901 GST_DEBUG_OBJECT (demux, "DateUTC: %" G_GINT64_FORMAT, time);
2902 demux->created = time;
2906 case GST_MATROSKA_ID_TITLE:{
2908 GstTagList *taglist;
2910 if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
2913 GST_DEBUG_OBJECT (demux, "Title: %s", GST_STR_NULL (text));
2914 taglist = gst_tag_list_new ();
2915 gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_TITLE, text,
2917 gst_matroska_demux_found_global_tag (demux, taglist);
2923 GST_WARNING_OBJECT (demux,
2924 "Unknown SegmentInfo subelement 0x%x - ignoring", id);
2927 case GST_MATROSKA_ID_SEGMENTUID:
2928 case GST_MATROSKA_ID_SEGMENTFILENAME:
2929 case GST_MATROSKA_ID_PREVUID:
2930 case GST_MATROSKA_ID_PREVFILENAME:
2931 case GST_MATROSKA_ID_NEXTUID:
2932 case GST_MATROSKA_ID_NEXTFILENAME:
2933 case GST_MATROSKA_ID_SEGMENTFAMILY:
2934 case GST_MATROSKA_ID_CHAPTERTRANSLATE:
2935 ret = gst_ebml_read_skip (ebml);
2939 if (demux->level_up) {
2945 DEBUG_ELEMENT_STOP (demux, ebml, "SegmentInfo", ret);
2947 demux->segmentinfo_parsed = TRUE;
2952 static GstFlowReturn
2953 gst_matroska_demux_parse_metadata_id_simple_tag (GstMatroskaDemux * demux,
2954 GstTagList ** p_taglist)
2956 /* FIXME: check if there are more useful mappings */
2959 gchar *matroska_tagname;
2960 gchar *gstreamer_tagname;
2964 GST_MATROSKA_TAG_ID_TITLE, GST_TAG_TITLE}, {
2965 GST_MATROSKA_TAG_ID_AUTHOR, GST_TAG_ARTIST}, {
2966 GST_MATROSKA_TAG_ID_ALBUM, GST_TAG_ALBUM}, {
2967 GST_MATROSKA_TAG_ID_COMMENTS, GST_TAG_COMMENT}, {
2968 GST_MATROSKA_TAG_ID_BITSPS, GST_TAG_BITRATE}, {
2969 GST_MATROSKA_TAG_ID_BPS, GST_TAG_BITRATE}, {
2970 GST_MATROSKA_TAG_ID_ENCODER, GST_TAG_ENCODER}, {
2971 GST_MATROSKA_TAG_ID_DATE, GST_TAG_DATE}, {
2972 GST_MATROSKA_TAG_ID_ISRC, GST_TAG_ISRC}, {
2973 GST_MATROSKA_TAG_ID_COPYRIGHT, GST_TAG_COPYRIGHT}, {
2974 GST_MATROSKA_TAG_ID_BPM, GST_TAG_BEATS_PER_MINUTE}, {
2975 GST_MATROSKA_TAG_ID_TERMS_OF_USE, GST_TAG_LICENSE}, {
2976 GST_MATROSKA_TAG_ID_COMPOSER, GST_TAG_COMPOSER}, {
2977 GST_MATROSKA_TAG_ID_LEAD_PERFORMER, GST_TAG_PERFORMER}, {
2978 GST_MATROSKA_TAG_ID_GENRE, GST_TAG_GENRE}
2980 GstEbmlRead *ebml = GST_EBML_READ (demux);
2983 gchar *value = NULL;
2986 DEBUG_ELEMENT_START (demux, ebml, "SimpleTag");
2988 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
2989 DEBUG_ELEMENT_STOP (demux, ebml, "SimpleTag", ret);
2993 while (ret == GST_FLOW_OK) {
2994 /* read all sub-entries */
2996 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
2999 if (demux->level_up) {
3005 case GST_MATROSKA_ID_TAGNAME:
3008 ret = gst_ebml_read_ascii (ebml, &id, &tag);
3009 GST_DEBUG_OBJECT (demux, "TagName: %s", GST_STR_NULL (tag));
3012 case GST_MATROSKA_ID_TAGSTRING:
3015 ret = gst_ebml_read_utf8 (ebml, &id, &value);
3016 GST_DEBUG_OBJECT (demux, "TagString: %s", GST_STR_NULL (value));
3020 GST_WARNING_OBJECT (demux,
3021 "Unknown SimpleTag subelement 0x%x - ignoring", id);
3024 case GST_MATROSKA_ID_TAGLANGUAGE:
3025 case GST_MATROSKA_ID_TAGDEFAULT:
3026 case GST_MATROSKA_ID_TAGBINARY:
3027 ret = gst_ebml_read_skip (ebml);
3031 if (demux->level_up) {
3037 DEBUG_ELEMENT_STOP (demux, ebml, "SimpleTag", ret);
3042 for (i = 0; i < G_N_ELEMENTS (tag_conv); i++) {
3043 const gchar *tagname_gst = tag_conv[i].gstreamer_tagname;
3045 const gchar *tagname_mkv = tag_conv[i].matroska_tagname;
3047 if (strcmp (tagname_mkv, tag) == 0) {
3048 GValue dest = { 0, };
3049 GType dest_type = gst_tag_get_type (tagname_gst);
3051 g_value_init (&dest, dest_type);
3052 if (gst_value_deserialize (&dest, value)) {
3053 gst_tag_list_add_values (*p_taglist, GST_TAG_MERGE_APPEND,
3054 tagname_gst, &dest, NULL);
3056 GST_WARNING_OBJECT (demux, "Can't transform tag '%s' with "
3057 "value '%s' to target type '%s'", tag, value,
3058 g_type_name (dest_type));
3060 g_value_unset (&dest);
3072 static GstFlowReturn
3073 gst_matroska_demux_parse_metadata_id_tag (GstMatroskaDemux * demux,
3074 GstTagList ** p_taglist)
3076 GstEbmlRead *ebml = GST_EBML_READ (demux);
3080 DEBUG_ELEMENT_START (demux, ebml, "Tag");
3082 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
3083 DEBUG_ELEMENT_STOP (demux, ebml, "Tag", ret);
3087 while (ret == GST_FLOW_OK) {
3088 /* read all sub-entries */
3090 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
3093 if (demux->level_up) {
3099 case GST_MATROSKA_ID_SIMPLETAG:
3101 gst_matroska_demux_parse_metadata_id_simple_tag (demux, p_taglist);
3105 GST_WARNING_OBJECT (demux, "Unknown Tag subelement 0x%x - ignoring",
3107 ret = gst_ebml_read_skip (ebml);
3111 if (demux->level_up) {
3117 DEBUG_ELEMENT_STOP (demux, ebml, "Tag", ret);
3122 static GstFlowReturn
3123 gst_matroska_demux_parse_metadata (GstMatroskaDemux * demux)
3125 GstEbmlRead *ebml = GST_EBML_READ (demux);
3126 GstTagList *taglist;
3127 GstFlowReturn ret = GST_FLOW_OK;
3130 GstEbmlLevel *curlevel;
3132 /* Can't be NULL at this point */
3133 g_assert (ebml->level != NULL);
3134 curlevel = ebml->level->data;
3136 /* Make sure we don't parse a tags element twice and
3137 * post it's tags twice */
3138 for (l = demux->tags_parsed; l; l = l->next) {
3139 GstEbmlLevel *level = l->data;
3142 curlevel = ebml->level->data;
3146 if (level->start == curlevel->start && level->length == curlevel->length) {
3147 GST_DEBUG_OBJECT (demux, "Skipping already parsed Tags at offset %"
3148 G_GUINT64_FORMAT, ebml->offset);
3149 ret = gst_ebml_read_skip (ebml);
3154 DEBUG_ELEMENT_START (demux, ebml, "Tags");
3156 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
3157 DEBUG_ELEMENT_STOP (demux, ebml, "Tags", ret);
3161 taglist = gst_tag_list_new ();
3163 /* TODO: g_slice_dup() if we depend on GLib 2.14 */
3164 curlevel = g_slice_new (GstEbmlLevel);
3165 memcpy (curlevel, ebml->level->data, sizeof (GstEbmlLevel));
3166 demux->tags_parsed = g_list_prepend (demux->tags_parsed, curlevel);
3168 while (ret == GST_FLOW_OK) {
3169 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
3172 if (demux->level_up) {
3178 case GST_MATROSKA_ID_TAG:
3179 ret = gst_matroska_demux_parse_metadata_id_tag (demux, &taglist);
3183 GST_WARNING_OBJECT (demux, "Unknown Tags subelement 0x%x - ignoring",
3185 /* FIXME: Use to limit the tags to specific pads */
3186 case GST_MATROSKA_ID_TARGETS:
3187 ret = gst_ebml_read_skip (ebml);
3191 if (demux->level_up) {
3197 DEBUG_ELEMENT_STOP (demux, ebml, "Tags", ret);
3199 gst_matroska_demux_found_global_tag (demux, taglist);
3204 static GstFlowReturn
3205 gst_matroska_demux_parse_attached_file (GstMatroskaDemux * demux,
3206 GstTagList * taglist)
3208 GstEbmlRead *ebml = GST_EBML_READ (demux);
3211 gchar *description = NULL;
3212 gchar *filename = NULL;
3213 gchar *mimetype = NULL;
3214 guint8 *data = NULL;
3215 guint64 datalen = 0;
3217 DEBUG_ELEMENT_START (demux, ebml, "AttachedFile");
3219 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
3220 DEBUG_ELEMENT_STOP (demux, ebml, "AttachedFile", ret);
3224 while (ret == GST_FLOW_OK) {
3225 /* read all sub-entries */
3227 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
3230 if (demux->level_up) {
3236 case GST_MATROSKA_ID_FILEDESCRIPTION:
3238 GST_WARNING_OBJECT (demux, "FileDescription can only appear once");
3242 ret = gst_ebml_read_utf8 (ebml, &id, &description);
3243 GST_DEBUG_OBJECT (demux, "FileDescription: %s",
3244 GST_STR_NULL (description));
3246 case GST_MATROSKA_ID_FILENAME:
3248 GST_WARNING_OBJECT (demux, "FileName can only appear once");
3252 ret = gst_ebml_read_utf8 (ebml, &id, &filename);
3254 GST_DEBUG_OBJECT (demux, "FileName: %s", GST_STR_NULL (filename));
3256 case GST_MATROSKA_ID_FILEMIMETYPE:
3258 GST_WARNING_OBJECT (demux, "FileMimeType can only appear once");
3262 ret = gst_ebml_read_ascii (ebml, &id, &mimetype);
3263 GST_DEBUG_OBJECT (demux, "FileMimeType: %s", GST_STR_NULL (mimetype));
3265 case GST_MATROSKA_ID_FILEDATA:
3267 GST_WARNING_OBJECT (demux, "FileData can only appear once");
3271 ret = gst_ebml_read_binary (ebml, &id, &data, &datalen);
3272 GST_DEBUG_OBJECT (demux, "FileData of size %" G_GUINT64_FORMAT,
3277 GST_WARNING_OBJECT (demux,
3278 "Unknown AttachedFile subelement 0x%x - ignoring", id);
3280 case GST_MATROSKA_ID_FILEUID:
3281 ret = gst_ebml_read_skip (ebml);
3285 if (demux->level_up) {
3291 DEBUG_ELEMENT_STOP (demux, ebml, "AttachedFile", ret);
3293 if (filename && mimetype && data && datalen > 0) {
3294 GstTagImageType image_type = GST_TAG_IMAGE_TYPE_NONE;
3295 GstBuffer *tagbuffer = NULL;
3297 gchar *filename_lc = g_utf8_strdown (filename, -1);
3299 GST_DEBUG_OBJECT (demux, "Creating tag for attachment with filename '%s', "
3300 "mimetype '%s', description '%s', size %" G_GUINT64_FORMAT, filename,
3301 mimetype, GST_STR_NULL (description), datalen);
3303 /* TODO: better heuristics for different image types */
3304 if (strstr (filename_lc, "cover")) {
3305 if (strstr (filename_lc, "back"))
3306 image_type = GST_TAG_IMAGE_TYPE_BACK_COVER;
3308 image_type = GST_TAG_IMAGE_TYPE_FRONT_COVER;
3309 } else if (g_str_has_prefix (mimetype, "image/") ||
3310 g_str_has_suffix (filename_lc, "png") ||
3311 g_str_has_suffix (filename_lc, "jpg") ||
3312 g_str_has_suffix (filename_lc, "jpeg") ||
3313 g_str_has_suffix (filename_lc, "gif") ||
3314 g_str_has_suffix (filename_lc, "bmp")) {
3315 image_type = GST_TAG_IMAGE_TYPE_UNDEFINED;
3317 g_free (filename_lc);
3319 /* First try to create an image tag buffer from this */
3320 if (image_type != GST_TAG_IMAGE_TYPE_NONE) {
3322 gst_tag_image_data_to_image_buffer (data, datalen, image_type);
3325 image_type = GST_TAG_IMAGE_TYPE_NONE;
3328 /* if this failed create an attachment buffer */
3330 tagbuffer = gst_buffer_new_and_alloc (datalen);
3332 memcpy (GST_BUFFER_DATA (tagbuffer), data, datalen);
3333 GST_BUFFER_SIZE (tagbuffer) = datalen;
3335 caps = gst_type_find_helper_for_buffer (NULL, tagbuffer, NULL);
3337 caps = gst_caps_new_simple (mimetype, NULL);
3338 gst_buffer_set_caps (tagbuffer, caps);
3339 gst_caps_unref (caps);
3342 /* Set filename and description on the caps */
3343 caps = GST_BUFFER_CAPS (tagbuffer);
3344 gst_caps_set_simple (caps, "filename", G_TYPE_STRING, filename, NULL);
3346 gst_caps_set_simple (caps, "description", G_TYPE_STRING, description,
3349 GST_DEBUG_OBJECT (demux,
3350 "Created attachment buffer with caps: %" GST_PTR_FORMAT, caps);
3352 /* and append to the tag list */
3353 if (image_type != GST_TAG_IMAGE_TYPE_NONE)
3354 gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_IMAGE, tagbuffer,
3357 gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_ATTACHMENT,
3364 g_free (description);
3369 static GstFlowReturn
3370 gst_matroska_demux_parse_attachments (GstMatroskaDemux * demux)
3372 GstEbmlRead *ebml = GST_EBML_READ (demux);
3374 GstFlowReturn ret = GST_FLOW_OK;
3375 GstTagList *taglist;
3377 DEBUG_ELEMENT_START (demux, ebml, "Attachments");
3379 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
3380 DEBUG_ELEMENT_STOP (demux, ebml, "Attachments", ret);
3384 taglist = gst_tag_list_new ();
3386 while (ret == GST_FLOW_OK) {
3387 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
3390 if (demux->level_up) {
3396 case GST_MATROSKA_ID_ATTACHEDFILE:
3397 ret = gst_matroska_demux_parse_attached_file (demux, taglist);
3401 GST_WARNING ("Unknown Attachments subelement 0x%x - ignoring", id);
3402 ret = gst_ebml_read_skip (ebml);
3406 if (demux->level_up) {
3411 DEBUG_ELEMENT_STOP (demux, ebml, "Attachments", ret);
3413 if (gst_structure_n_fields (GST_STRUCTURE (taglist)) > 0) {
3414 GST_DEBUG_OBJECT (demux, "Storing attachment tags");
3415 gst_matroska_demux_found_global_tag (demux, taglist);
3417 GST_DEBUG_OBJECT (demux, "No valid attachments found");
3418 gst_tag_list_free (taglist);
3421 demux->attachments_parsed = TRUE;
3426 static GstFlowReturn
3427 gst_matroska_demux_parse_chapters (GstMatroskaDemux * demux)
3429 GstEbmlRead *ebml = GST_EBML_READ (demux);
3431 GstFlowReturn ret = GST_FLOW_OK;
3433 GST_WARNING_OBJECT (demux, "Parsing of chapters not implemented yet");
3435 /* TODO: implement parsing of chapters */
3437 DEBUG_ELEMENT_START (demux, ebml, "Chapters");
3439 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
3440 DEBUG_ELEMENT_STOP (demux, ebml, "Chapters", ret);
3444 while (ret == GST_FLOW_OK) {
3445 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
3448 if (demux->level_up) {
3455 ret = gst_ebml_read_skip (ebml);
3459 if (demux->level_up) {
3465 DEBUG_ELEMENT_STOP (demux, ebml, "Chapters", ret);
3470 * Read signed/unsigned "EBML" numbers.
3471 * Return: number of bytes processed.
3475 gst_matroska_ebmlnum_uint (guint8 * data, guint size, guint64 * num)
3477 gint len_mask = 0x80, read = 1, n = 1, num_ffs = 0;
3485 while (read <= 8 && !(total & len_mask)) {
3492 if ((total &= (len_mask - 1)) == len_mask - 1)
3497 if (data[n] == 0xff)
3499 total = (total << 8) | data[n];
3503 if (read == num_ffs && total != 0)
3512 gst_matroska_ebmlnum_sint (guint8 * data, guint size, gint64 * num)
3517 /* read as unsigned number first */
3518 if ((res = gst_matroska_ebmlnum_uint (data, size, &unum)) < 0)
3522 if (unum == G_MAXUINT64)
3525 *num = unum - ((1 << ((7 * res) - 1)) - 1);
3531 * Mostly used for subtitles. We add void filler data for each
3532 * lagging stream to make sure we don't deadlock.
3536 gst_matroska_demux_sync_streams (GstMatroskaDemux * demux)
3540 GST_LOG_OBJECT (demux, "Sync to %" GST_TIME_FORMAT,
3541 GST_TIME_ARGS (demux->segment.last_stop));
3543 g_assert (demux->num_streams == demux->src->len);
3544 for (stream_nr = 0; stream_nr < demux->src->len; stream_nr++) {
3545 GstMatroskaTrackContext *context;
3547 context = g_ptr_array_index (demux->src, stream_nr);
3549 GST_LOG_OBJECT (demux,
3550 "Checking for resync on stream %d (%" GST_TIME_FORMAT ")", stream_nr,
3551 GST_TIME_ARGS (context->pos));
3553 /* does it lag? 0.5 seconds is a random threshold... */
3554 if (GST_CLOCK_TIME_IS_VALID (context->pos)
3555 && context->pos + (GST_SECOND / 2) < demux->segment.last_stop) {
3556 GST_DEBUG_OBJECT (demux,
3557 "Synchronizing stream %d with others by advancing time " "from %"
3558 GST_TIME_FORMAT " to %" GST_TIME_FORMAT, stream_nr,
3559 GST_TIME_ARGS (context->pos),
3560 GST_TIME_ARGS (demux->segment.last_stop));
3562 context->pos = demux->segment.last_stop;
3564 /* advance stream time */
3565 gst_pad_push_event (context->pad,
3566 gst_event_new_new_segment (TRUE, demux->segment.rate,
3567 demux->segment.format, demux->segment.last_stop,
3568 demux->segment.stop, demux->segment.last_stop));
3573 static GstFlowReturn
3574 gst_matroska_demux_push_hdr_buf (GstMatroskaDemux * demux,
3575 GstMatroskaTrackContext * stream, guint8 * data, guint len)
3577 GstFlowReturn ret, cret;
3578 GstBuffer *header_buf = NULL;
3580 ret = gst_pad_alloc_buffer_and_set_caps (stream->pad,
3581 GST_BUFFER_OFFSET_NONE, len, stream->caps, &header_buf);
3583 /* we combine but don't use the combined value to check if we have a buffer
3584 * or not. The combined value is what we return. */
3585 cret = gst_matroska_demux_combine_flows (demux, stream, ret);
3586 if (ret != GST_FLOW_OK)
3589 memcpy (GST_BUFFER_DATA (header_buf), data, len);
3591 if (stream->set_discont) {
3592 GST_BUFFER_FLAG_SET (header_buf, GST_BUFFER_FLAG_DISCONT);
3593 stream->set_discont = FALSE;
3596 ret = gst_pad_push (stream->pad, header_buf);
3599 cret = gst_matroska_demux_combine_flows (demux, stream, ret);
3606 GST_DEBUG_OBJECT (demux, "could not alloc buffer: %s, combined %s",
3607 gst_flow_get_name (ret), gst_flow_get_name (cret));
3612 static GstFlowReturn
3613 gst_matroska_demux_push_flac_codec_priv_data (GstMatroskaDemux * demux,
3614 GstMatroskaTrackContext * stream)
3620 GST_LOG_OBJECT (demux, "priv data size = %u", stream->codec_priv_size);
3622 pdata = (guint8 *) stream->codec_priv;
3624 /* need at least 'fLaC' marker + STREAMINFO metadata block */
3625 if (stream->codec_priv_size < ((4) + (4 + 34))) {
3626 GST_WARNING_OBJECT (demux, "not enough codec priv data for flac headers");
3627 return GST_FLOW_ERROR;
3630 if (memcmp (pdata, "fLaC", 4) != 0) {
3631 GST_WARNING_OBJECT (demux, "no flac marker at start of stream headers");
3632 return GST_FLOW_ERROR;
3635 ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata, 4);
3636 if (ret != GST_FLOW_OK)
3639 off = 4; /* skip fLaC marker */
3640 while (off < stream->codec_priv_size) {
3641 len = GST_READ_UINT8 (pdata + off + 1) << 16;
3642 len |= GST_READ_UINT8 (pdata + off + 2) << 8;
3643 len |= GST_READ_UINT8 (pdata + off + 3);
3645 GST_DEBUG_OBJECT (demux, "header packet: len=%u bytes, flags=0x%02x",
3646 len, (guint) pdata[off]);
3648 ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata + off, len);
3649 if (ret != GST_FLOW_OK)
3657 static GstFlowReturn
3658 gst_matroska_demux_push_speex_codec_priv_data (GstMatroskaDemux * demux,
3659 GstMatroskaTrackContext * stream)
3664 GST_LOG_OBJECT (demux, "priv data size = %u", stream->codec_priv_size);
3666 pdata = (guint8 *) stream->codec_priv;
3668 /* need at least 'fLaC' marker + STREAMINFO metadata block */
3669 if (stream->codec_priv_size < 80) {
3670 GST_WARNING_OBJECT (demux, "not enough codec priv data for speex headers");
3671 return GST_FLOW_ERROR;
3674 if (memcmp (pdata, "Speex ", 8) != 0) {
3675 GST_WARNING_OBJECT (demux, "no Speex marker at start of stream headers");
3676 return GST_FLOW_ERROR;
3679 ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata, 80);
3680 if (ret != GST_FLOW_OK)
3683 if (stream->codec_priv_size == 80)
3686 return gst_matroska_demux_push_hdr_buf (demux, stream, pdata + 80,
3687 stream->codec_priv_size - 80);
3690 static GstFlowReturn
3691 gst_matroska_demux_push_xiph_codec_priv_data (GstMatroskaDemux * demux,
3692 GstMatroskaTrackContext * stream)
3695 guint8 *p = (guint8 *) stream->codec_priv;
3696 gint i, offset, num_packets;
3697 guint *length, last;
3699 /* start of the stream and vorbis audio or theora video, need to
3700 * send the codec_priv data as first three packets */
3701 num_packets = p[0] + 1;
3702 GST_DEBUG_OBJECT (demux, "%u stream headers, total length=%u bytes",
3703 (guint) num_packets, stream->codec_priv_size);
3705 length = g_alloca (num_packets * sizeof (guint));
3709 /* first packets, read length values */
3710 for (i = 0; i < num_packets - 1; i++) {
3712 while (offset < stream->codec_priv_size) {
3713 length[i] += p[offset];
3714 if (p[offset++] != 0xff)
3719 if (offset + last > stream->codec_priv_size)
3720 return GST_FLOW_ERROR;
3722 /* last packet is the remaining size */
3723 length[i] = stream->codec_priv_size - offset - last;
3725 for (i = 0; i < num_packets; i++) {
3726 GST_DEBUG_OBJECT (demux, "buffer %d: length=%u bytes", i,
3728 if (offset + length[i] > stream->codec_priv_size)
3729 return GST_FLOW_ERROR;
3732 gst_matroska_demux_push_hdr_buf (demux, stream, p + offset, length[i]);
3733 if (ret != GST_FLOW_OK)
3736 offset += length[i];
3742 gst_matroska_demux_push_dvd_clut_change_event (GstMatroskaDemux * demux,
3743 GstMatroskaTrackContext * stream)
3747 g_assert (!strcmp (stream->codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_VOBSUB));
3749 if (!stream->codec_priv)
3752 /* ideally, VobSub private data should be parsed and stored more convenient
3753 * elsewhere, but for now, only interested in a small part */
3755 /* make sure we have terminating 0 */
3756 buf = g_strndup ((gchar *) stream->codec_priv, stream->codec_priv_size);
3758 /* just locate and parse palette part */
3759 start = strstr (buf, "palette:");
3764 guint8 r, g, b, y, u, v;
3767 while (g_ascii_isspace (*start))
3769 for (i = 0; i < 16; i++) {
3770 if (sscanf (start, "%06x", &col) != 1)
3773 while ((*start == ',') || g_ascii_isspace (*start))
3775 /* sigh, need to convert this from vobsub pseudo-RGB to YUV */
3776 r = (col >> 16) & 0xff;
3777 g = (col >> 8) & 0xff;
3779 y = CLAMP ((0.1494 * r + 0.6061 * g + 0.2445 * b) * 219 / 255 + 16, 0,
3781 u = CLAMP (0.6066 * r - 0.4322 * g - 0.1744 * b + 128, 0, 255);
3782 v = CLAMP (-0.08435 * r - 0.3422 * g + 0.4266 * b + 128, 0, 255);
3783 clut[i] = (y << 16) | (u << 8) | v;
3786 /* got them all without problems; build and send event */
3790 s = gst_structure_new ("application/x-gst-dvd", "event", G_TYPE_STRING,
3791 "dvd-spu-clut-change", "clut00", G_TYPE_INT, clut[0], "clut01",
3792 G_TYPE_INT, clut[1], "clut02", G_TYPE_INT, clut[2], "clut03",
3793 G_TYPE_INT, clut[3], "clut04", G_TYPE_INT, clut[4], "clut05",
3794 G_TYPE_INT, clut[5], "clut06", G_TYPE_INT, clut[6], "clut07",
3795 G_TYPE_INT, clut[7], "clut08", G_TYPE_INT, clut[8], "clut09",
3796 G_TYPE_INT, clut[9], "clut10", G_TYPE_INT, clut[10], "clut11",
3797 G_TYPE_INT, clut[11], "clut12", G_TYPE_INT, clut[12], "clut13",
3798 G_TYPE_INT, clut[13], "clut14", G_TYPE_INT, clut[14], "clut15",
3799 G_TYPE_INT, clut[15], NULL);
3801 gst_pad_push_event (stream->pad,
3802 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s));
3808 static GstFlowReturn
3809 gst_matroska_demux_add_mpeg_seq_header (GstElement * element,
3810 GstMatroskaTrackContext * stream, GstBuffer ** buf)
3812 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
3814 guint seq_header_len;
3817 if (stream->codec_state) {
3818 seq_header = stream->codec_state;
3819 seq_header_len = stream->codec_state_size;
3820 } else if (stream->codec_priv) {
3821 seq_header = stream->codec_priv;
3822 seq_header_len = stream->codec_priv_size;
3827 /* Sequence header only needed for keyframes */
3828 if (GST_BUFFER_FLAG_IS_SET (*buf, GST_BUFFER_FLAG_DELTA_UNIT))
3831 if (GST_BUFFER_SIZE (*buf) < 4)
3834 header = GST_READ_UINT32_BE (GST_BUFFER_DATA (*buf));
3835 /* Sequence start code, if not found prepend */
3836 if (header != 0x000001b3) {
3838 GstFlowReturn ret, cret;
3840 ret = gst_pad_alloc_buffer_and_set_caps (stream->pad,
3841 GST_BUFFER_OFFSET_NONE, GST_BUFFER_SIZE (*buf) + seq_header_len,
3842 stream->caps, &newbuf);
3843 cret = gst_matroska_demux_combine_flows (demux, stream, ret);
3844 if (ret != GST_FLOW_OK) {
3845 GST_WARNING_OBJECT (demux, "Reallocating buffer for sequence header "
3846 "failed: %s, combined flow return: %s", gst_flow_get_name (ret),
3847 gst_flow_get_name (cret));
3851 GST_DEBUG_OBJECT (demux, "Prepending MPEG sequence header");
3852 gst_buffer_copy_metadata (newbuf, *buf, GST_BUFFER_COPY_TIMESTAMPS |
3853 GST_BUFFER_COPY_FLAGS);
3854 g_memmove (GST_BUFFER_DATA (newbuf), seq_header, seq_header_len);
3855 g_memmove (GST_BUFFER_DATA (newbuf) + seq_header_len,
3856 GST_BUFFER_DATA (*buf), GST_BUFFER_SIZE (*buf));
3857 gst_buffer_unref (*buf);
3864 static GstFlowReturn
3865 gst_matroska_demux_add_wvpk_header (GstElement * element,
3866 GstMatroskaTrackContext * stream, GstBuffer ** buf)
3868 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
3869 GstMatroskaTrackAudioContext *audiocontext =
3870 (GstMatroskaTrackAudioContext *) stream;
3871 GstBuffer *newbuf = NULL;
3874 GstFlowReturn ret, cret = GST_FLOW_OK;
3882 wvh.version = GST_READ_UINT16_LE (stream->codec_priv);
3885 wvh.total_samples = -1;
3886 wvh.block_index = audiocontext->wvpk_block_index;
3888 if (audiocontext->channels <= 2) {
3889 guint32 block_samples;
3891 block_samples = GST_READ_UINT32_LE (GST_BUFFER_DATA (*buf));
3892 /* we need to reconstruct the header of the wavpack block */
3894 /* -20 because ck_size is the size of the wavpack block -8
3895 * and lace_size is the size of the wavpack block + 12
3896 * (the three guint32 of the header that already are in the buffer) */
3897 wvh.ck_size = GST_BUFFER_SIZE (*buf) + sizeof (Wavpack4Header) - 20;
3899 /* block_samples, flags and crc are already in the buffer */
3900 newlen = GST_BUFFER_SIZE (*buf) + sizeof (Wavpack4Header) - 12;
3902 gst_pad_alloc_buffer_and_set_caps (stream->pad, GST_BUFFER_OFFSET_NONE,
3903 newlen, stream->caps, &newbuf);
3904 cret = gst_matroska_demux_combine_flows (demux, stream, ret);
3905 if (ret != GST_FLOW_OK) {
3906 GST_DEBUG_OBJECT (demux, "pad_alloc failed %s, combined %s",
3907 gst_flow_get_name (ret), gst_flow_get_name (cret));
3911 data = GST_BUFFER_DATA (newbuf);
3916 GST_WRITE_UINT32_LE (data + 4, wvh.ck_size);
3917 GST_WRITE_UINT16_LE (data + 8, wvh.version);
3918 GST_WRITE_UINT8 (data + 10, wvh.track_no);
3919 GST_WRITE_UINT8 (data + 11, wvh.index_no);
3920 GST_WRITE_UINT32_LE (data + 12, wvh.total_samples);
3921 GST_WRITE_UINT32_LE (data + 16, wvh.block_index);
3922 g_memmove (data + 20, GST_BUFFER_DATA (*buf), GST_BUFFER_SIZE (*buf));
3923 gst_buffer_copy_metadata (newbuf, *buf,
3924 GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
3925 gst_buffer_unref (*buf);
3927 audiocontext->wvpk_block_index += block_samples;
3932 guint32 block_samples, flags, crc, blocksize;
3934 data = GST_BUFFER_DATA (*buf);
3935 size = GST_BUFFER_SIZE (*buf);
3938 GST_ERROR_OBJECT (demux, "Too small wavpack buffer");
3939 return GST_FLOW_ERROR;
3942 block_samples = GST_READ_UINT32_LE (data);
3947 flags = GST_READ_UINT32_LE (data);
3950 crc = GST_READ_UINT32_LE (data);
3953 blocksize = GST_READ_UINT32_LE (data);
3957 if (blocksize == 0 || size < blocksize)
3960 if (newbuf == NULL) {
3961 newbuf = gst_buffer_new_and_alloc (sizeof (Wavpack4Header) + blocksize);
3962 gst_buffer_set_caps (newbuf, stream->caps);
3964 gst_buffer_copy_metadata (newbuf, *buf,
3965 GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
3968 outdata = GST_BUFFER_DATA (newbuf);
3970 GST_BUFFER_SIZE (newbuf) += sizeof (Wavpack4Header) + blocksize;
3971 GST_BUFFER_DATA (newbuf) =
3972 g_realloc (GST_BUFFER_DATA (newbuf), GST_BUFFER_SIZE (newbuf));
3973 GST_BUFFER_MALLOCDATA (newbuf) = GST_BUFFER_DATA (newbuf);
3974 outdata = GST_BUFFER_DATA (newbuf);
3977 outdata[outpos] = 'w';
3978 outdata[outpos + 1] = 'v';
3979 outdata[outpos + 2] = 'p';
3980 outdata[outpos + 3] = 'k';
3983 GST_WRITE_UINT32_LE (outdata + outpos,
3984 blocksize + sizeof (Wavpack4Header) - 8);
3985 GST_WRITE_UINT16_LE (outdata + outpos + 4, wvh.version);
3986 GST_WRITE_UINT8 (outdata + outpos + 6, wvh.track_no);
3987 GST_WRITE_UINT8 (outdata + outpos + 7, wvh.index_no);
3988 GST_WRITE_UINT32_LE (outdata + outpos + 8, wvh.total_samples);
3989 GST_WRITE_UINT32_LE (outdata + outpos + 12, wvh.block_index);
3990 GST_WRITE_UINT32_LE (outdata + outpos + 16, block_samples);
3991 GST_WRITE_UINT32_LE (outdata + outpos + 20, flags);
3992 GST_WRITE_UINT32_LE (outdata + outpos + 24, crc);
3995 g_memmove (outdata + outpos, data, blocksize);
3996 outpos += blocksize;
4000 gst_buffer_unref (*buf);
4002 audiocontext->wvpk_block_index += block_samples;
4008 static GstFlowReturn
4009 gst_matroska_demux_check_subtitle_buffer (GstElement * element,
4010 GstMatroskaTrackContext * stream, GstBuffer ** buf)
4012 GstMatroskaTrackSubtitleContext *sub_stream;
4013 const gchar *encoding, *data;
4019 sub_stream = (GstMatroskaTrackSubtitleContext *) stream;
4021 data = (const gchar *) GST_BUFFER_DATA (*buf);
4022 size = GST_BUFFER_SIZE (*buf);
4024 if (!sub_stream->invalid_utf8) {
4025 if (g_utf8_validate (data, size, NULL)) {
4028 GST_WARNING_OBJECT (element, "subtitle stream %d is not valid UTF-8, this "
4029 "is broken according to the matroska specification", stream->num);
4030 sub_stream->invalid_utf8 = TRUE;
4033 /* file with broken non-UTF8 subtitle, do the best we can do to fix it */
4034 encoding = g_getenv ("GST_SUBTITLE_ENCODING");
4035 if (encoding == NULL || *encoding == '\0') {
4036 /* if local encoding is UTF-8 and no encoding specified
4037 * via the environment variable, assume ISO-8859-15 */
4038 if (g_get_charset (&encoding)) {
4039 encoding = "ISO-8859-15";
4043 utf8 = g_convert_with_fallback (data, size, "UTF-8", encoding, "*",
4047 GST_LOG_OBJECT (element, "could not convert string from '%s' to UTF-8: %s",
4048 encoding, err->message);
4052 /* invalid input encoding, fall back to ISO-8859-15 (always succeeds) */
4053 encoding = "ISO-8859-15";
4054 utf8 = g_convert_with_fallback (data, size, "UTF-8", encoding, "*",
4058 GST_LOG_OBJECT (element, "converted subtitle text from %s to UTF-8 %s",
4059 encoding, (err) ? "(using ISO-8859-15 as fallback)" : "");
4062 utf8 = g_strdup ("invalid subtitle");
4064 newbuf = gst_buffer_new ();
4065 GST_BUFFER_MALLOCDATA (newbuf) = (guint8 *) utf8;
4066 GST_BUFFER_DATA (newbuf) = (guint8 *) utf8;
4067 GST_BUFFER_SIZE (newbuf) = strlen (utf8);
4068 gst_buffer_copy_metadata (newbuf, *buf,
4069 GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
4070 gst_buffer_unref (*buf);
4076 static GstFlowReturn
4077 gst_matroska_demux_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux,
4078 guint64 cluster_time, guint64 cluster_offset, gboolean is_simpleblock)
4080 GstMatroskaTrackContext *stream = NULL;
4081 GstEbmlRead *ebml = GST_EBML_READ (demux);
4082 GstFlowReturn ret = GST_FLOW_OK;
4083 gboolean readblock = FALSE;
4085 guint64 block_duration = 0;
4086 GstBuffer *buf = NULL;
4087 gint stream_num = -1, n, laces = 0;
4089 gint *lace_size = NULL;
4092 gint64 referenceblock = 0;
4094 while (ret == GST_FLOW_OK) {
4095 if (!is_simpleblock) {
4096 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
4099 if (demux->level_up) {
4104 id = GST_MATROSKA_ID_SIMPLEBLOCK;
4108 /* one block inside the group. Note, block parsing is one
4109 * of the harder things, so this code is a bit complicated.
4110 * See http://www.matroska.org/ for documentation. */
4111 case GST_MATROSKA_ID_SIMPLEBLOCK:
4112 case GST_MATROSKA_ID_BLOCK:
4118 gst_buffer_unref (buf);
4121 if ((ret = gst_ebml_read_buffer (ebml, &id, &buf)) != GST_FLOW_OK)
4124 data = GST_BUFFER_DATA (buf);
4125 size = GST_BUFFER_SIZE (buf);
4127 /* first byte(s): blocknum */
4128 if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) {
4129 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), ("Data error"));
4130 gst_buffer_unref (buf);
4132 ret = GST_FLOW_ERROR;
4138 /* fetch stream from num */
4139 stream_num = gst_matroska_demux_stream_from_num (demux, num);
4140 if (size < 3 || stream_num < 0 || stream_num >= demux->num_streams) {
4141 gst_buffer_unref (buf);
4143 GST_WARNING_OBJECT (demux, "Invalid stream %d or size %u", stream_num,
4145 ret = GST_FLOW_ERROR;
4149 stream = g_ptr_array_index (demux->src, stream_num);
4151 /* time (relative to cluster time) */
4152 time = ((gint16) GST_READ_UINT16_BE (data));
4155 flags = GST_READ_UINT8 (data);
4159 GST_LOG_OBJECT (demux, "time %" G_GUINT64_FORMAT ", flags %d", time,
4162 switch ((flags & 0x06) >> 1) {
4163 case 0x0: /* no lacing */
4165 lace_size = g_new (gint, 1);
4166 lace_size[0] = size;
4169 case 0x1: /* xiph lacing */
4170 case 0x2: /* fixed-size lacing */
4171 case 0x3: /* EBML lacing */
4173 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
4174 ("Invalid lacing size"));
4175 ret = GST_FLOW_ERROR;
4178 laces = GST_READ_UINT8 (data) + 1;
4181 lace_size = g_new0 (gint, laces);
4183 switch ((flags & 0x06) >> 1) {
4184 case 0x1: /* xiph lacing */ {
4185 guint temp, total = 0;
4187 for (n = 0; ret == GST_FLOW_OK && n < laces - 1; n++) {
4190 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
4191 ("Invalid lacing size"));
4192 ret = GST_FLOW_ERROR;
4195 temp = GST_READ_UINT8 (data);
4196 lace_size[n] += temp;
4202 total += lace_size[n];
4204 lace_size[n] = size - total;
4208 case 0x2: /* fixed-size lacing */
4209 for (n = 0; n < laces; n++)
4210 lace_size[n] = size / laces;
4213 case 0x3: /* EBML lacing */ {
4216 if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) {
4217 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
4219 ret = GST_FLOW_ERROR;
4224 total = lace_size[0] = num;
4225 for (n = 1; ret == GST_FLOW_OK && n < laces - 1; n++) {
4229 if ((r = gst_matroska_ebmlnum_sint (data, size, &snum)) < 0) {
4230 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
4232 ret = GST_FLOW_ERROR;
4237 lace_size[n] = lace_size[n - 1] + snum;
4238 total += lace_size[n];
4241 lace_size[n] = size - total;
4248 if (stream->send_xiph_headers) {
4249 ret = gst_matroska_demux_push_xiph_codec_priv_data (demux, stream);
4250 stream->send_xiph_headers = FALSE;
4253 if (stream->send_flac_headers) {
4254 ret = gst_matroska_demux_push_flac_codec_priv_data (demux, stream);
4255 stream->send_flac_headers = FALSE;
4258 if (stream->send_speex_headers) {
4259 ret = gst_matroska_demux_push_speex_codec_priv_data (demux, stream);
4260 stream->send_speex_headers = FALSE;
4263 if (stream->send_dvd_event) {
4264 gst_matroska_demux_push_dvd_clut_change_event (demux, stream);
4265 /* FIXME: should we send this event again after (flushing) seek ? */
4266 stream->send_dvd_event = FALSE;
4269 if (ret != GST_FLOW_OK)
4276 case GST_MATROSKA_ID_BLOCKDURATION:{
4277 ret = gst_ebml_read_uint (ebml, &id, &block_duration);
4278 GST_DEBUG_OBJECT (demux, "BlockDuration: %" G_GUINT64_FORMAT,
4283 case GST_MATROSKA_ID_REFERENCEBLOCK:{
4284 ret = gst_ebml_read_sint (ebml, &id, &referenceblock);
4285 GST_DEBUG_OBJECT (demux, "ReferenceBlock: %" G_GINT64_FORMAT,
4290 case GST_MATROSKA_ID_CODECSTATE:{
4292 guint64 data_len = 0;
4295 gst_ebml_read_binary (ebml, &id, &data,
4296 &data_len)) != GST_FLOW_OK)
4299 g_free (stream->codec_state);
4300 stream->codec_state = data;
4301 stream->codec_state_size = data_len;
4303 /* Decode if necessary */
4304 if (stream->encodings && stream->encodings->len > 0
4305 && stream->codec_state && stream->codec_state_size > 0) {
4306 if (!gst_matroska_decode_data (stream->encodings,
4307 &stream->codec_state, &stream->codec_state_size,
4308 GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA, TRUE)) {
4309 GST_WARNING_OBJECT (demux, "Decoding codec state failed");
4313 GST_DEBUG_OBJECT (demux, "CodecState of %u bytes",
4314 stream->codec_state_size);
4319 GST_WARNING_OBJECT (demux,
4320 "Unknown BlockGroup subelement 0x%x - ignoring", id);
4323 case GST_MATROSKA_ID_BLOCKVIRTUAL:
4324 case GST_MATROSKA_ID_BLOCKADDITIONS:
4325 case GST_MATROSKA_ID_REFERENCEPRIORITY:
4326 case GST_MATROSKA_ID_REFERENCEVIRTUAL:
4327 case GST_MATROSKA_ID_SLICES:
4328 GST_DEBUG_OBJECT (demux,
4329 "Skipping BlockGroup subelement 0x%x - ignoring", id);
4330 ret = gst_ebml_read_skip (ebml);
4337 if (demux->level_up) {
4343 if (ret == GST_FLOW_OK && readblock) {
4344 guint64 duration = 0;
4345 gint64 lace_time = 0;
4347 stream = g_ptr_array_index (demux->src, stream_num);
4349 if (cluster_time != GST_CLOCK_TIME_NONE) {
4350 /* FIXME: What to do with negative timestamps? Give timestamp 0 or -1?
4351 * Drop unless the lace contains timestamp 0? */
4352 if (time < 0 && (-time) > cluster_time) {
4355 if (stream->timecodescale == 1.0)
4356 lace_time = (cluster_time + time) * demux->time_scale;
4359 gst_util_guint64_to_gdouble ((cluster_time + time) *
4360 demux->time_scale) * stream->timecodescale;
4363 lace_time = GST_CLOCK_TIME_NONE;
4366 if (block_duration) {
4367 if (stream->timecodescale == 1.0)
4368 duration = block_duration * demux->time_scale;
4371 gst_util_gdouble_to_guint64 (gst_util_guint64_to_gdouble
4372 (block_duration * demux->time_scale) * stream->timecodescale);
4373 } else if (stream->default_duration) {
4374 duration = stream->default_duration * laces;
4376 /* else duration is diff between timecode of this and next block */
4377 for (n = 0; n < laces; n++) {
4380 sub = gst_buffer_create_sub (buf,
4381 GST_BUFFER_SIZE (buf) - size, lace_size[n]);
4382 GST_DEBUG_OBJECT (demux, "created subbuffer %p", sub);
4384 if (stream->encodings != NULL && stream->encodings->len > 0)
4385 sub = gst_matroska_decode_buffer (stream, sub);
4388 GST_WARNING_OBJECT (demux, "Decoding buffer failed");
4392 GST_BUFFER_TIMESTAMP (sub) = lace_time;
4394 if (GST_CLOCK_TIME_IS_VALID (lace_time)) {
4395 GstClockTime last_stop_end;
4397 /* Check if this stream is after segment stop */
4398 if (GST_CLOCK_TIME_IS_VALID (demux->segment.stop) &&
4399 lace_time >= demux->segment.stop) {
4400 GST_DEBUG_OBJECT (demux,
4401 "Stream %d after segment stop %" GST_TIME_FORMAT, stream->index,
4402 GST_TIME_ARGS (demux->segment.stop));
4403 ret = GST_FLOW_UNEXPECTED;
4405 ret = gst_matroska_demux_combine_flows (demux, stream, ret);
4409 if (GST_CLOCK_TIME_IS_VALID (stream->pos)) {
4410 GstClockTimeDiff diff = GST_CLOCK_DIFF (stream->pos, lace_time);
4412 if (diff < -GST_SECOND / 2 || diff > GST_SECOND / 2) {
4413 GST_DEBUG_OBJECT (demux,
4414 "Gap of %" G_GINT64_FORMAT " ns detected in"
4415 "stream %d. Sending updated NEWSEGMENT event", diff,
4417 gst_pad_push_event (stream->pad, gst_event_new_new_segment (TRUE,
4418 demux->segment.rate, demux->segment.format, lace_time,
4419 demux->segment.stop, lace_time));
4423 if (!GST_CLOCK_TIME_IS_VALID (demux->segment.last_stop)
4424 || demux->segment.last_stop < lace_time) {
4425 demux->segment.last_stop = lace_time;
4428 last_stop_end = lace_time;
4430 GST_BUFFER_DURATION (sub) = duration / laces;
4431 last_stop_end += GST_BUFFER_DURATION (sub);
4434 if (!GST_CLOCK_TIME_IS_VALID (demux->last_stop_end) ||
4435 demux->last_stop_end < last_stop_end)
4436 demux->last_stop_end = last_stop_end;
4438 if (demux->duration == -1 || demux->duration < lace_time) {
4439 demux->duration = last_stop_end;
4440 gst_element_post_message (GST_ELEMENT_CAST (demux),
4441 gst_message_new_duration (GST_OBJECT_CAST (demux),
4442 GST_FORMAT_TIME, GST_CLOCK_TIME_NONE));
4446 stream->pos = lace_time;
4448 gst_matroska_demux_sync_streams (demux);
4450 if (is_simpleblock) {
4452 GST_BUFFER_FLAG_UNSET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
4454 GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
4456 if (referenceblock) {
4457 GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
4459 GST_BUFFER_FLAG_UNSET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
4463 if (GST_BUFFER_FLAG_IS_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT)
4464 && stream->set_discont) {
4465 /* When doing seeks or such, we need to restart on key frames or
4466 * decoders might choke. */
4467 GST_DEBUG_OBJECT (demux, "skipping delta unit");
4468 gst_buffer_unref (sub);
4472 if (stream->set_discont) {
4473 GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DISCONT);
4474 stream->set_discont = FALSE;
4477 GST_DEBUG_OBJECT (demux,
4478 "Pushing lace %d, data of size %d for stream %d, time=%"
4479 GST_TIME_FORMAT " and duration=%" GST_TIME_FORMAT, n,
4480 GST_BUFFER_SIZE (sub), stream_num,
4481 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)),
4482 GST_TIME_ARGS (GST_BUFFER_DURATION (sub)));
4484 if (demux->element_index) {
4485 if (stream->index_writer_id == -1)
4486 gst_index_get_writer_id (demux->element_index,
4487 GST_OBJECT (stream->pad), &stream->index_writer_id);
4489 GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %"
4490 G_GUINT64_FORMAT " for writer id %d",
4491 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)), cluster_offset,
4492 stream->index_writer_id);
4493 gst_index_add_association (demux->element_index,
4494 stream->index_writer_id, GST_BUFFER_FLAG_IS_SET (sub,
4495 GST_BUFFER_FLAG_DELTA_UNIT) ? 0 : GST_ASSOCIATION_FLAG_KEY_UNIT,
4496 GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (sub), GST_FORMAT_BYTES,
4497 cluster_offset, NULL);
4500 gst_buffer_set_caps (sub, GST_PAD_CAPS (stream->pad));
4502 /* Postprocess the buffers depending on the codec used */
4503 if (stream->postprocess_frame) {
4504 GST_LOG_OBJECT (demux, "running post process");
4505 ret = stream->postprocess_frame (GST_ELEMENT (demux), stream, &sub);
4508 ret = gst_pad_push (stream->pad, sub);
4510 ret = gst_matroska_demux_combine_flows (demux, stream, ret);
4513 size -= lace_size[n];
4514 if (lace_time != GST_CLOCK_TIME_NONE && duration)
4515 lace_time += duration / laces;
4517 lace_time = GST_CLOCK_TIME_NONE;
4523 gst_buffer_unref (buf);
4529 /* return FALSE if block(group) should be skipped (due to a seek) */
4530 static inline gboolean
4531 gst_matroska_demux_seek_block (GstMatroskaDemux * demux)
4533 if (G_UNLIKELY (demux->seek_block)) {
4534 if (!(--demux->seek_block)) {
4537 GST_LOG_OBJECT (demux, "should skip block due to seek");
4545 static GstFlowReturn
4546 gst_matroska_demux_parse_cluster (GstMatroskaDemux * demux)
4548 GstEbmlRead *ebml = GST_EBML_READ (demux);
4549 GstFlowReturn ret = GST_FLOW_OK;
4550 guint64 cluster_time = GST_CLOCK_TIME_NONE;
4552 guint64 cluster_offset = demux->parent.offset;
4554 DEBUG_ELEMENT_START (demux, ebml, "Cluster");
4556 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
4557 DEBUG_ELEMENT_STOP (demux, ebml, "Cluster", ret);
4561 while (ret == GST_FLOW_OK) {
4562 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
4565 if (demux->level_up) {
4571 /* cluster timecode */
4572 case GST_MATROSKA_ID_CLUSTERTIMECODE:
4576 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
4579 GST_DEBUG_OBJECT (demux, "ClusterTimeCode: %" G_GUINT64_FORMAT, num);
4584 /* a group of blocks inside a cluster */
4585 case GST_MATROSKA_ID_BLOCKGROUP:
4586 if (!gst_matroska_demux_seek_block (demux))
4588 DEBUG_ELEMENT_START (demux, ebml, "BlockGroup");
4589 if ((ret = gst_ebml_read_master (ebml, &id)) == GST_FLOW_OK) {
4590 ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux,
4591 cluster_time, cluster_offset, FALSE);
4593 DEBUG_ELEMENT_STOP (demux, ebml, "BlockGroup", ret);
4596 case GST_MATROSKA_ID_SIMPLEBLOCK:
4598 if (!gst_matroska_demux_seek_block (demux))
4600 DEBUG_ELEMENT_START (demux, ebml, "SimpleBlock");
4601 ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux,
4602 cluster_time, cluster_offset, TRUE);
4603 DEBUG_ELEMENT_STOP (demux, ebml, "SimpleBlock", ret);
4608 GST_WARNING ("Unknown Cluster subelement 0x%x - ignoring", id);
4610 case GST_MATROSKA_ID_POSITION:
4611 case GST_MATROSKA_ID_PREVSIZE:
4612 case GST_MATROSKA_ID_ENCRYPTEDBLOCK:
4613 case GST_MATROSKA_ID_SILENTTRACKS:
4615 GST_DEBUG ("Skipping Cluster subelement 0x%x - ignoring", id);
4616 ret = gst_ebml_read_skip (ebml);
4620 if (demux->level_up) {
4626 if (demux->element_index) {
4627 if (demux->element_index_writer_id == -1)
4628 gst_index_get_writer_id (demux->element_index,
4629 GST_OBJECT (demux), &demux->element_index_writer_id);
4631 GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %"
4632 G_GUINT64_FORMAT " for writer id %d",
4633 GST_TIME_ARGS (cluster_time), cluster_offset,
4634 demux->element_index_writer_id);
4635 gst_index_add_association (demux->element_index,
4636 demux->element_index_writer_id, GST_ASSOCIATION_FLAG_KEY_UNIT,
4637 GST_FORMAT_TIME, cluster_time, GST_FORMAT_BYTES, cluster_offset, NULL);
4640 DEBUG_ELEMENT_STOP (demux, ebml, "Cluster", ret);
4642 if (G_UNLIKELY (demux->seek_block)) {
4643 GST_DEBUG_OBJECT (demux, "seek target block %" G_GUINT64_FORMAT
4644 " not found in Cluster, trying next Cluster's first block instead",
4646 demux->seek_block = 0;
4652 static GstFlowReturn
4653 gst_matroska_demux_parse_contents_seekentry (GstMatroskaDemux * demux)
4655 GstEbmlRead *ebml = GST_EBML_READ (demux);
4657 guint64 seek_pos = (guint64) - 1;
4658 guint32 seek_id = 0;
4661 DEBUG_ELEMENT_START (demux, ebml, "Seek");
4663 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
4664 DEBUG_ELEMENT_STOP (demux, ebml, "Seek", ret);
4668 while (ret == GST_FLOW_OK) {
4669 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
4672 if (demux->level_up) {
4678 case GST_MATROSKA_ID_SEEKID:
4682 if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK)
4685 GST_DEBUG_OBJECT (demux, "SeekID: %" G_GUINT64_FORMAT, t);
4690 case GST_MATROSKA_ID_SEEKPOSITION:
4694 if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK)
4697 if (t > G_MAXINT64) {
4698 GST_WARNING_OBJECT (demux,
4699 "Too large SeekPosition %" G_GUINT64_FORMAT, t);
4703 GST_DEBUG_OBJECT (demux, "SeekPosition: %" G_GUINT64_FORMAT, t);
4709 GST_WARNING_OBJECT (demux,
4710 "Unknown SeekHead subelement 0x%x - ignoring", id);
4711 ret = gst_ebml_read_skip (ebml);
4715 if (demux->level_up) {
4721 if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)
4724 if (!seek_id || seek_pos == (guint64) - 1) {
4725 GST_WARNING_OBJECT (demux, "Incomplete seekhead entry (0x%x/%"
4726 G_GUINT64_FORMAT ")", seek_id, seek_pos);
4731 case GST_MATROSKA_ID_CUES:
4732 case GST_MATROSKA_ID_TAGS:
4733 case GST_MATROSKA_ID_TRACKS:
4734 case GST_MATROSKA_ID_SEEKHEAD:
4735 case GST_MATROSKA_ID_SEGMENTINFO:
4736 case GST_MATROSKA_ID_ATTACHMENTS:
4737 case GST_MATROSKA_ID_CHAPTERS:
4739 guint level_up = demux->level_up;
4740 guint64 before_pos, length;
4741 GstEbmlLevel *level;
4744 length = gst_ebml_read_get_length (ebml);
4745 before_pos = ebml->offset;
4747 /* check for validity */
4748 if (seek_pos + demux->ebml_segment_start + 12 >= length) {
4749 GST_WARNING_OBJECT (demux,
4750 "SeekHead reference lies outside file!" " (%"
4751 G_GUINT64_FORMAT "+%" G_GUINT64_FORMAT "+12 >= %"
4752 G_GUINT64_FORMAT ")", seek_pos, demux->ebml_segment_start, length);
4757 if (gst_ebml_read_seek (ebml, seek_pos + demux->ebml_segment_start) !=
4761 /* we don't want to lose our seekhead level, so we add
4762 * a dummy. This is a crude hack. */
4763 level = g_slice_new (GstEbmlLevel);
4765 level->length = G_MAXUINT64;
4766 ebml->level = g_list_prepend (ebml->level, level);
4769 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
4772 if (id != seek_id) {
4773 GST_WARNING_OBJECT (demux,
4774 "We looked for ID=0x%x but got ID=0x%x (pos=%" G_GUINT64_FORMAT ")",
4775 seek_id, id, seek_pos + demux->ebml_segment_start);
4779 /* read master + parse */
4781 case GST_MATROSKA_ID_CUES:
4782 if (!demux->index_parsed) {
4783 ret = gst_matroska_demux_parse_index (demux);
4786 case GST_MATROSKA_ID_TAGS:
4787 ret = gst_matroska_demux_parse_metadata (demux);
4789 case GST_MATROSKA_ID_TRACKS:
4790 if (!demux->tracks_parsed) {
4791 ret = gst_matroska_demux_parse_tracks (demux);
4795 case GST_MATROSKA_ID_SEGMENTINFO:
4796 if (!demux->segmentinfo_parsed) {
4797 ret = gst_matroska_demux_parse_info (demux);
4800 case GST_MATROSKA_ID_SEEKHEAD:
4804 DEBUG_ELEMENT_START (demux, ebml, "SeekHead");
4805 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
4808 /* Prevent infinite recursion if there's a cycle from
4809 * one seekhead to the same again. Simply break if
4810 * we already had this seekhead, finish will clean up
4812 for (l = ebml->level; l; l = l->next) {
4813 GstEbmlLevel *level = (GstEbmlLevel *) l->data;
4815 if (level->start == ebml->offset && l->prev)
4819 ret = gst_matroska_demux_parse_contents (demux);
4822 case GST_MATROSKA_ID_ATTACHMENTS:
4823 if (!demux->attachments_parsed) {
4824 ret = gst_matroska_demux_parse_attachments (demux);
4827 case GST_MATROSKA_ID_CHAPTERS:
4828 ret = gst_matroska_demux_parse_chapters (demux);
4833 /* remove dummy level */
4834 while (ebml->level) {
4837 level = ebml->level->data;
4838 ebml->level = g_list_delete_link (ebml->level, ebml->level);
4839 length = level->length;
4840 g_slice_free (GstEbmlLevel, level);
4841 if (length == G_MAXUINT64)
4846 (void) gst_ebml_read_seek (ebml, before_pos);
4847 demux->level_up = level_up;
4852 GST_DEBUG_OBJECT (demux, "Ignoring Seek entry for ID=0x%x", seek_id);
4855 DEBUG_ELEMENT_STOP (demux, ebml, "Seek", ret);
4860 static GstFlowReturn
4861 gst_matroska_demux_parse_contents (GstMatroskaDemux * demux)
4863 GstEbmlRead *ebml = GST_EBML_READ (demux);
4864 GstFlowReturn ret = GST_FLOW_OK;
4867 while (ret == GST_FLOW_OK) {
4868 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
4871 if (demux->level_up) {
4877 case GST_MATROSKA_ID_SEEKENTRY:
4879 ret = gst_matroska_demux_parse_contents_seekentry (demux);
4880 /* Ignore EOS and errors here */
4881 if (ret != GST_FLOW_OK) {
4882 GST_DEBUG_OBJECT (demux, "Ignoring %s", gst_flow_get_name (ret));
4889 GST_WARNING ("Unknown SeekHead subelement 0x%x - ignoring", id);
4890 ret = gst_ebml_read_skip (ebml);
4894 if (demux->level_up) {
4900 DEBUG_ELEMENT_STOP (demux, ebml, "SeekHead", ret);
4905 /* returns FALSE on error, otherwise TRUE */
4906 static GstFlowReturn
4907 gst_matroska_demux_loop_stream_parse_id (GstMatroskaDemux * demux,
4908 guint32 id, gboolean * p_run_loop)
4910 GstEbmlRead *ebml = GST_EBML_READ (demux);
4911 GstFlowReturn ret = GST_FLOW_OK;
4915 * Can exist more than once but following occurences
4916 * must have the same content so ignore them */
4917 case GST_MATROSKA_ID_SEGMENTINFO:
4918 if (!demux->segmentinfo_parsed) {
4919 if ((ret = gst_matroska_demux_parse_info (demux)) != GST_FLOW_OK)
4922 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
4927 /* track info headers
4928 * Can exist more than once but following occurences
4929 * must have the same content so ignore them */
4930 case GST_MATROSKA_ID_TRACKS:
4932 if (!demux->tracks_parsed) {
4933 if ((ret = gst_matroska_demux_parse_tracks (demux)) != GST_FLOW_OK)
4936 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
4942 /* cues - seek table
4943 * Either exists exactly one time or never but ignore
4944 * following occurences for the sake of sanity */
4945 case GST_MATROSKA_ID_CUES:
4947 if (!demux->index_parsed) {
4948 if ((ret = gst_matroska_demux_parse_index (demux)) != GST_FLOW_OK)
4951 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
4958 * can exist more than one time with different content */
4959 case GST_MATROSKA_ID_TAGS:
4961 if ((ret = gst_matroska_demux_parse_metadata (demux)) != GST_FLOW_OK)
4966 /* file index (if seekable, seek to Cues/Tags/etc to parse it) */
4967 case GST_MATROSKA_ID_SEEKHEAD:
4969 DEBUG_ELEMENT_START (demux, ebml, "SeekHead");
4970 if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
4972 if ((ret = gst_matroska_demux_parse_contents (demux)) != GST_FLOW_OK)
4977 /* cluster - contains the payload */
4978 case GST_MATROSKA_ID_CLUSTER:
4980 if (demux->state != GST_MATROSKA_DEMUX_STATE_DATA) {
4981 /* We need a Tracks element first before we can output anything.
4984 if (!demux->tracks_parsed) {
4985 GstEbmlLevel *level;
4990 GST_WARNING_OBJECT (demux,
4991 "Found Cluster element before Tracks, searching Tracks");
4994 level_up = demux->level_up;
4995 before_pos = ebml->offset;
4997 /* we don't want to lose our seekhead level, so we add
4998 * a dummy. This is a crude hack. */
5000 level = g_slice_new (GstEbmlLevel);
5002 level->length = G_MAXUINT64;
5003 ebml->level = g_list_prepend (ebml->level, level);
5005 /* Search Tracks element */
5007 if (gst_ebml_read_skip (ebml) != GST_FLOW_OK)
5010 if (gst_ebml_peek_id (ebml, &demux->level_up, &iid) != GST_FLOW_OK)
5013 if (iid != GST_MATROSKA_ID_TRACKS)
5016 gst_matroska_demux_parse_tracks (demux);
5020 if (!demux->tracks_parsed) {
5021 GST_ERROR_OBJECT (demux, "No Tracks element found");
5022 ret = GST_FLOW_ERROR;
5025 /* remove dummy level */
5026 while (ebml->level) {
5029 level = ebml->level->data;
5030 ebml->level = g_list_delete_link (ebml->level, ebml->level);
5031 length = level->length;
5032 g_slice_free (GstEbmlLevel, level);
5033 if (length == G_MAXUINT64)
5038 gst_ebml_read_seek (ebml, before_pos);
5039 demux->level_up = level_up;
5042 if (ret != GST_FLOW_OK)
5045 demux->state = GST_MATROSKA_DEMUX_STATE_DATA;
5046 GST_DEBUG_OBJECT (demux, "signaling no more pads");
5047 gst_element_no_more_pads (GST_ELEMENT (demux));
5048 /* send initial discont */
5049 gst_matroska_demux_send_event (demux,
5050 gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
5052 /* The idea is that we parse one cluster per loop and
5053 * then break out of the loop here. In the next call
5054 * of the loopfunc, we will get back here with the
5055 * next cluster. If an error occurs, we didn't
5056 * actually push a buffer, but we still want to break
5057 * out of the loop to handle a possible error. We'll
5058 * get back here if it's recoverable. */
5059 if ((ret = gst_matroska_demux_parse_cluster (demux)) != GST_FLOW_OK)
5061 *p_run_loop = FALSE;
5066 /* attachments - contains files attached to the mkv container
5067 * like album art, etc */
5068 case GST_MATROSKA_ID_ATTACHMENTS:{
5069 if (!demux->attachments_parsed) {
5070 if ((ret = gst_matroska_demux_parse_attachments (demux)) != GST_FLOW_OK)
5073 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
5079 /* chapters - contains meta information about how to group
5080 * the file into chapters, similar to DVD */
5081 case GST_MATROSKA_ID_CHAPTERS:{
5082 if ((ret = gst_matroska_demux_parse_chapters (demux)) != GST_FLOW_OK)
5088 GST_WARNING_OBJECT (demux, "Unknown Segment subelement 0x%x at %"
5089 G_GUINT64_FORMAT " - ignoring", id, GST_EBML_READ (demux)->offset);
5090 if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
5097 static GstFlowReturn
5098 gst_matroska_demux_loop_stream (GstMatroskaDemux * demux)
5100 GstEbmlRead *ebml = GST_EBML_READ (demux);
5101 GstFlowReturn ret = GST_FLOW_OK;
5102 gboolean run_loop = TRUE;
5105 /* we've found our segment, start reading the different contents in here */
5106 while (run_loop && ret == GST_FLOW_OK) {
5107 if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
5110 if (demux->level_up) {
5115 ret = gst_matroska_demux_loop_stream_parse_id (demux, id, &run_loop);
5117 if (demux->level_up) {
5126 gst_matroska_demux_loop (GstPad * pad)
5128 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (pad));
5129 GstEbmlRead *ebml = GST_EBML_READ (demux);
5132 /* first, if we're to start, let's actually get starting */
5133 if (G_UNLIKELY (demux->state == GST_MATROSKA_DEMUX_STATE_START)) {
5134 ret = gst_matroska_demux_init_stream (demux);
5135 if (ret != GST_FLOW_OK) {
5136 GST_WARNING_OBJECT (demux, "init stream failed!");
5139 demux->state = GST_MATROSKA_DEMUX_STATE_HEADER;
5142 /* If we have to close a segment, send a new segment to do this now */
5144 if (G_LIKELY (demux->state == GST_MATROSKA_DEMUX_STATE_DATA)) {
5145 if (G_UNLIKELY (demux->close_segment)) {
5146 gst_matroska_demux_send_event (demux, demux->close_segment);
5147 demux->close_segment = NULL;
5149 if (G_UNLIKELY (demux->new_segment)) {
5150 gst_matroska_demux_send_event (demux, demux->new_segment);
5151 demux->new_segment = NULL;
5155 ret = gst_matroska_demux_loop_stream (demux);
5156 if (ret != GST_FLOW_OK)
5159 /* check if we're at the end of a configured segment */
5160 if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (demux->segment.stop))) {
5163 g_assert (demux->num_streams == demux->src->len);
5164 for (i = 0; i < demux->src->len; i++) {
5165 GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
5166 if (context->pos >= demux->segment.stop) {
5167 GST_INFO_OBJECT (demux, "Reached end of segment (%" G_GUINT64_FORMAT
5168 "-%" G_GUINT64_FORMAT ") on pad %s:%s", demux->segment.start,
5169 demux->segment.stop, GST_DEBUG_PAD_NAME (context->pad));
5170 ret = GST_FLOW_UNEXPECTED;
5176 if (G_UNLIKELY (ebml->offset == gst_ebml_read_get_length (ebml))) {
5177 GST_LOG_OBJECT (demux, "Reached end of stream, sending EOS");
5178 ret = GST_FLOW_UNEXPECTED;
5187 const gchar *reason = gst_flow_get_name (ret);
5189 GST_LOG_OBJECT (demux, "pausing task, reason %s", reason);
5190 demux->segment_running = FALSE;
5191 gst_pad_pause_task (demux->sinkpad);
5193 if (GST_FLOW_IS_FATAL (ret) || ret == GST_FLOW_NOT_LINKED) {
5194 if (ret == GST_FLOW_UNEXPECTED) {
5195 /* perform EOS logic */
5197 /* Close the segment, i.e. update segment stop with the duration
5198 * if no stop was set */
5199 if (GST_CLOCK_TIME_IS_VALID (demux->last_stop_end) &&
5200 !GST_CLOCK_TIME_IS_VALID (demux->segment.stop)) {
5202 gst_event_new_new_segment_full (TRUE, demux->segment.rate,
5203 demux->segment.applied_rate, demux->segment.format,
5204 demux->segment.start,
5205 demux->last_stop_end, demux->segment.time);
5206 gst_matroska_demux_send_event (demux, event);
5209 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
5212 /* for segment playback we need to post when (in stream time)
5213 * we stopped, this is either stop (when set) or the duration. */
5214 if ((stop = demux->segment.stop) == -1)
5215 stop = demux->last_stop_end;
5217 GST_LOG_OBJECT (demux, "Sending segment done, at end of segment");
5218 gst_element_post_message (GST_ELEMENT (demux),
5219 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
5222 /* normal playback, send EOS to all linked pads */
5223 GST_LOG_OBJECT (demux, "Sending EOS, at end of stream");
5224 gst_matroska_demux_send_event (demux, gst_event_new_eos ());
5227 GST_ELEMENT_ERROR (demux, STREAM, FAILED, (NULL),
5228 ("stream stopped, reason %s", reason));
5229 gst_matroska_demux_send_event (demux, gst_event_new_eos ());
5237 gst_matroska_demux_take (GstMatroskaDemux * demux, guint bytes)
5241 GST_LOG_OBJECT (demux, "caching %d bytes for parsing", bytes);
5242 buffer = gst_adapter_take_buffer (demux->adapter, bytes);
5243 gst_ebml_read_reset_cache (GST_EBML_READ (demux), buffer, demux->offset);
5244 demux->offset += bytes;
5248 gst_matroska_demux_flush (GstMatroskaDemux * demux, guint flush)
5250 GST_LOG_OBJECT (demux, "skipping %d bytes", flush);
5251 gst_adapter_flush (demux->adapter, flush);
5252 demux->offset += flush;
5255 static GstFlowReturn
5256 gst_matroska_demux_peek_id_length (GstMatroskaDemux * demux, guint32 * _id,
5257 guint64 * _length, guint * _needed)
5259 guint avail, needed;
5261 gint len_mask = 0x80, read = 1, n = 1, num_ffs = 0;
5265 g_return_val_if_fail (_id != NULL, GST_FLOW_ERROR);
5266 g_return_val_if_fail (_length != NULL, GST_FLOW_ERROR);
5267 g_return_val_if_fail (_needed != NULL, GST_FLOW_ERROR);
5270 *_id = (guint32) GST_EBML_SIZE_UNKNOWN;
5271 *_length = GST_EBML_SIZE_UNKNOWN;
5273 /* read element id */
5275 avail = gst_adapter_available (demux->adapter);
5279 buf = gst_adapter_peek (demux->adapter, 1);
5280 b = GST_READ_UINT8 (buf);
5282 total = (guint64) b;
5283 while (read <= 4 && !(total & len_mask)) {
5287 if (G_UNLIKELY (read > 4))
5289 /* need id and at least something for subsequent length */
5290 if ((needed = read + 1) > avail)
5293 buf = gst_adapter_peek (demux->adapter, needed);
5295 b = GST_READ_UINT8 (buf + n);
5296 total = (total << 8) | b;
5299 *_id = (guint32) total;
5301 /* read element length */
5302 b = GST_READ_UINT8 (buf + n);
5303 total = (guint64) b;
5306 while (read <= 8 && !(total & len_mask)) {
5310 if (G_UNLIKELY (read > 8))
5311 goto invalid_length;
5312 if ((needed += read - 1) > avail)
5314 if ((total &= (len_mask - 1)) == len_mask - 1)
5317 buf = gst_adapter_peek (demux->adapter, needed);
5318 buf += (needed - read);
5321 guint8 b = GST_READ_UINT8 (buf + n);
5323 if (G_UNLIKELY (b == 0xff))
5325 total = (total << 8) | b;
5329 if (G_UNLIKELY (read == num_ffs))
5330 *_length = G_MAXUINT64;
5343 GST_ERROR_OBJECT (demux,
5344 "Invalid EBML ID size tag (0x%x) at position %" G_GUINT64_FORMAT " (0x%"
5345 G_GINT64_MODIFIER "x)", (guint) b, demux->offset, demux->offset);
5346 return GST_FLOW_ERROR;
5350 GST_ERROR_OBJECT (demux,
5351 "Invalid EBML length size tag (0x%x) at position %" G_GUINT64_FORMAT
5352 " (0x%" G_GINT64_MODIFIER "x)", (guint) b, demux->offset,
5354 return GST_FLOW_ERROR;
5358 static GstFlowReturn
5359 gst_matroska_demux_chain (GstPad * pad, GstBuffer * buffer)
5361 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (pad));
5362 GstEbmlRead *ebml = GST_EBML_READ (demux);
5364 GstFlowReturn ret = GST_FLOW_OK;
5370 gst_adapter_push (demux->adapter, buffer);
5374 available = gst_adapter_available (demux->adapter);
5376 ret = gst_matroska_demux_peek_id_length (demux, &id, &length, &needed);
5377 if (G_UNLIKELY (ret != GST_FLOW_OK))
5380 GST_LOG_OBJECT (demux, "Offset %" G_GUINT64_FORMAT ", Element id 0x%x, "
5381 "size %" G_GUINT64_FORMAT ", needed %d, available %d", demux->offset, id,
5382 length, needed, available);
5384 if (needed > available)
5387 /* only a few blocks are expected/allowed to be large,
5388 * and will be recursed into, whereas others must fit */
5389 if (G_LIKELY (id != GST_MATROSKA_ID_SEGMENT && id != GST_MATROSKA_ID_CLUSTER)) {
5390 if (needed + length > available)
5392 /* probably happens with 'large pieces' at the end, so consider it EOS */
5393 if (G_UNLIKELY (length > 10 * 1024 * 1024)) {
5394 GST_WARNING_OBJECT (demux, "forcing EOS due to size %" G_GUINT64_FORMAT,
5396 return GST_FLOW_UNEXPECTED;
5400 switch (demux->state) {
5401 case GST_MATROSKA_DEMUX_STATE_START:
5403 case GST_EBML_ID_HEADER:
5404 gst_matroska_demux_take (demux, length + needed);
5405 ret = gst_matroska_demux_parse_header (demux);
5406 if (ret != GST_FLOW_OK)
5408 demux->state = GST_MATROSKA_DEMUX_STATE_HEADER;
5411 goto invalid_header;
5415 case GST_MATROSKA_DEMUX_STATE_HEADER:
5416 case GST_MATROSKA_DEMUX_STATE_DATA:
5418 case GST_MATROSKA_ID_SEGMENT:
5419 /* eat segment prefix */
5420 gst_matroska_demux_flush (demux, needed);
5421 GST_DEBUG_OBJECT (demux,
5422 "Found Segment start at offset %" G_GUINT64_FORMAT, ebml->offset);
5423 /* seeks are from the beginning of the segment,
5424 * after the segment ID/length */
5425 demux->ebml_segment_start = demux->offset;
5427 case GST_MATROSKA_ID_SEGMENTINFO:
5428 if (!demux->segmentinfo_parsed) {
5429 gst_matroska_demux_take (demux, length + needed);
5430 ret = gst_matroska_demux_parse_info (demux);
5432 gst_matroska_demux_flush (demux, needed + length);
5435 case GST_MATROSKA_ID_TRACKS:
5436 if (!demux->tracks_parsed) {
5437 gst_matroska_demux_take (demux, length + needed);
5438 ret = gst_matroska_demux_parse_tracks (demux);
5440 gst_matroska_demux_flush (demux, needed + length);
5443 case GST_MATROSKA_ID_CLUSTER:
5444 if (G_UNLIKELY (!demux->tracks_parsed)) {
5445 GST_DEBUG_OBJECT (demux, "Cluster before Track");
5446 goto not_streamable;
5447 } else if (demux->state == GST_MATROSKA_DEMUX_STATE_HEADER) {
5448 demux->state = GST_MATROSKA_DEMUX_STATE_DATA;
5449 GST_DEBUG_OBJECT (demux, "signaling no more pads");
5450 gst_element_no_more_pads (GST_ELEMENT (demux));
5451 /* send initial newsegment */
5452 gst_matroska_demux_send_event (demux,
5453 gst_event_new_new_segment (FALSE, 1.0,
5455 (demux->segment.duration >
5456 0) ? demux->segment.duration : -1, 0));
5458 demux->cluster_time = GST_CLOCK_TIME_NONE;
5459 demux->cluster_offset = demux->parent.offset;
5460 /* eat cluster prefix */
5461 gst_matroska_demux_flush (demux, needed);
5463 case GST_MATROSKA_ID_CLUSTERTIMECODE:
5467 gst_matroska_demux_take (demux, length + needed);
5468 if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
5470 GST_DEBUG_OBJECT (demux, "ClusterTimeCode: %" G_GUINT64_FORMAT, num);
5471 demux->cluster_time = num;
5474 case GST_MATROSKA_ID_BLOCKGROUP:
5475 gst_matroska_demux_take (demux, length + needed);
5476 DEBUG_ELEMENT_START (demux, ebml, "BlockGroup");
5477 if ((ret = gst_ebml_read_master (ebml, &id)) == GST_FLOW_OK) {
5478 ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux,
5479 demux->cluster_time, demux->cluster_offset, FALSE);
5481 DEBUG_ELEMENT_STOP (demux, ebml, "BlockGroup", ret);
5482 if (ret != GST_FLOW_OK)
5485 case GST_MATROSKA_ID_SIMPLEBLOCK:
5486 gst_matroska_demux_take (demux, length + needed);
5487 DEBUG_ELEMENT_START (demux, ebml, "SimpleBlock");
5488 ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux,
5489 demux->cluster_time, demux->cluster_offset, TRUE);
5490 DEBUG_ELEMENT_STOP (demux, ebml, "SimpleBlock", ret);
5491 if (ret != GST_FLOW_OK)
5494 case GST_MATROSKA_ID_ATTACHMENTS:
5495 if (!demux->attachments_parsed) {
5496 gst_matroska_demux_take (demux, length + needed);
5497 ret = gst_matroska_demux_parse_attachments (demux);
5499 gst_matroska_demux_flush (demux, needed + length);
5502 case GST_MATROSKA_ID_TAGS:
5503 gst_matroska_demux_take (demux, length + needed);
5504 ret = gst_matroska_demux_parse_metadata (demux);
5506 case GST_MATROSKA_ID_CHAPTERS:
5509 case GST_MATROSKA_ID_SEEKHEAD:
5512 case GST_MATROSKA_ID_CUES:
5518 GST_DEBUG_OBJECT (demux, "skipping Element 0x%x (%s)", id, name);
5519 gst_matroska_demux_flush (demux, needed + length);
5525 if (ret != GST_FLOW_OK)
5536 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
5537 ("Failed to parse Element 0x%x", id));
5538 return GST_FLOW_ERROR;
5542 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
5543 ("File layout does not permit streaming"));
5544 return GST_FLOW_ERROR;
5548 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), ("Invalid header"));
5549 return GST_FLOW_ERROR;
5554 gst_matroska_demux_handle_sink_event (GstPad * pad, GstEvent * event)
5556 gboolean res = TRUE;
5557 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (pad));
5559 GST_DEBUG_OBJECT (demux,
5560 "have event type %s: %p on sink pad", GST_EVENT_TYPE_NAME (event), event);
5562 switch (GST_EVENT_TYPE (event)) {
5563 case GST_EVENT_NEWSEGMENT:
5566 gdouble rate, arate;
5567 gint64 start, stop, time = 0;
5571 /* some debug output */
5572 gst_segment_init (&segment, GST_FORMAT_UNDEFINED);
5573 gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
5574 &start, &stop, &time);
5575 gst_segment_set_newsegment_full (&segment, update, rate, arate, format,
5577 GST_DEBUG_OBJECT (demux,
5578 "received format %d newsegment %" GST_SEGMENT_FORMAT, format,
5581 /* chain will send initial newsegment after pads have been added */
5582 GST_DEBUG_OBJECT (demux, "eating event");
5583 gst_event_unref (event);
5589 if (demux->state != GST_MATROSKA_DEMUX_STATE_DATA) {
5590 gst_event_unref (event);
5591 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
5592 (NULL), ("got eos and didn't receive a complete header object"));
5593 } else if (demux->num_streams == 0) {
5594 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
5595 (NULL), ("got eos but no streams (yet)"));
5597 gst_matroska_demux_send_event (demux, event);
5602 res = gst_pad_event_default (pad, event);
5610 gst_matroska_demux_sink_activate (GstPad * sinkpad)
5612 if (gst_pad_check_pull_range (sinkpad)) {
5613 GST_DEBUG ("going to pull mode");
5614 return gst_pad_activate_pull (sinkpad, TRUE);
5616 GST_DEBUG ("going to push (streaming) mode");
5617 return gst_pad_activate_push (sinkpad, TRUE);
5624 gst_matroska_demux_sink_activate_pull (GstPad * sinkpad, gboolean active)
5626 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (sinkpad));
5629 /* if we have a scheduler we can start the task */
5630 demux->segment_running = TRUE;
5631 gst_pad_start_task (sinkpad, (GstTaskFunction) gst_matroska_demux_loop,
5634 demux->segment_running = FALSE;
5635 gst_pad_stop_task (sinkpad);
5642 gst_matroska_demux_video_caps (GstMatroskaTrackVideoContext *
5643 videocontext, const gchar * codec_id, guint8 * data, guint size,
5644 gchar ** codec_name)
5646 GstMatroskaTrackContext *context = (GstMatroskaTrackContext *) videocontext;
5647 GstCaps *caps = NULL;
5649 g_assert (videocontext != NULL);
5650 g_assert (codec_name != NULL);
5652 context->send_xiph_headers = FALSE;
5653 context->send_flac_headers = FALSE;
5654 context->send_speex_headers = FALSE;
5656 /* TODO: check if we have all codec types from matroska-ids.h
5657 * check if we have to do more special things with codec_private
5660 * GST_MATROSKA_CODEC_ID_VIDEO_QUICKTIME
5661 * GST_MATROSKA_CODEC_ID_VIDEO_SNOW
5664 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_VFW_FOURCC)) {
5665 gst_riff_strf_vids *vids = NULL;
5668 GstBuffer *buf = NULL;
5670 vids = (gst_riff_strf_vids *) data;
5672 /* assure size is big enough */
5674 GST_WARNING ("Too small BITMAPINFOHEADER (%d bytes)", size);
5677 if (size < sizeof (gst_riff_strf_vids)) {
5678 vids = g_new (gst_riff_strf_vids, 1);
5679 memcpy (vids, data, size);
5682 /* little-endian -> byte-order */
5683 vids->size = GUINT32_FROM_LE (vids->size);
5684 vids->width = GUINT32_FROM_LE (vids->width);
5685 vids->height = GUINT32_FROM_LE (vids->height);
5686 vids->planes = GUINT16_FROM_LE (vids->planes);
5687 vids->bit_cnt = GUINT16_FROM_LE (vids->bit_cnt);
5688 vids->compression = GUINT32_FROM_LE (vids->compression);
5689 vids->image_size = GUINT32_FROM_LE (vids->image_size);
5690 vids->xpels_meter = GUINT32_FROM_LE (vids->xpels_meter);
5691 vids->ypels_meter = GUINT32_FROM_LE (vids->ypels_meter);
5692 vids->num_colors = GUINT32_FROM_LE (vids->num_colors);
5693 vids->imp_colors = GUINT32_FROM_LE (vids->imp_colors);
5695 if (size > sizeof (gst_riff_strf_vids)) { /* some extra_data */
5696 buf = gst_buffer_new_and_alloc (size - sizeof (gst_riff_strf_vids));
5697 memcpy (GST_BUFFER_DATA (buf),
5698 (guint8 *) vids + sizeof (gst_riff_strf_vids),
5699 GST_BUFFER_SIZE (buf));
5702 caps = gst_riff_create_video_caps (vids->compression, NULL, vids,
5703 buf, NULL, codec_name);
5706 gst_buffer_unref (buf);
5708 if (vids != (gst_riff_strf_vids *) data)
5711 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_UNCOMPRESSED)) {
5714 switch (videocontext->fourcc) {
5715 case GST_MAKE_FOURCC ('I', '4', '2', '0'):
5716 *codec_name = g_strdup ("Raw planar YUV 4:2:0");
5717 fourcc = videocontext->fourcc;
5719 case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
5720 *codec_name = g_strdup ("Raw packed YUV 4:2:2");
5721 fourcc = videocontext->fourcc;
5723 case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
5724 *codec_name = g_strdup ("Raw packed YUV 4:2:0");
5725 fourcc = videocontext->fourcc;
5727 case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
5728 *codec_name = g_strdup ("Raw packed YUV 4:2:2");
5729 fourcc = videocontext->fourcc;
5731 case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
5732 *codec_name = g_strdup ("Raw packed YUV 4:4:4 with alpha channel");
5733 fourcc = videocontext->fourcc;
5737 GST_DEBUG ("Unknown fourcc %" GST_FOURCC_FORMAT,
5738 GST_FOURCC_ARGS (videocontext->fourcc));
5742 caps = gst_caps_new_simple ("video/x-raw-yuv",
5743 "format", GST_TYPE_FOURCC, fourcc, NULL);
5744 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_SP)) {
5745 caps = gst_caps_new_simple ("video/x-divx",
5746 "divxversion", G_TYPE_INT, 4, NULL);
5747 *codec_name = g_strdup ("MPEG-4 simple profile");
5748 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP) ||
5749 !strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AP)) {
5751 caps = gst_caps_new_full (gst_structure_new ("video/x-divx",
5752 "divxversion", G_TYPE_INT, 5, NULL),
5753 gst_structure_new ("video/x-xvid", NULL),
5754 gst_structure_new ("video/mpeg",
5755 "mpegversion", G_TYPE_INT, 4,
5756 "systemstream", G_TYPE_BOOLEAN, FALSE, NULL), NULL);
5758 caps = gst_caps_new_simple ("video/mpeg",
5759 "mpegversion", G_TYPE_INT, 4,
5760 "systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
5762 GstBuffer *priv = gst_buffer_new_and_alloc (size);
5764 memcpy (GST_BUFFER_DATA (priv), data, size);
5765 gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
5766 gst_buffer_unref (priv);
5768 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP))
5769 *codec_name = g_strdup ("MPEG-4 advanced simple profile");
5771 *codec_name = g_strdup ("MPEG-4 advanced profile");
5772 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MSMPEG4V3)) {
5774 caps = gst_caps_new_full (gst_structure_new ("video/x-divx",
5775 "divxversion", G_TYPE_INT, 3, NULL),
5776 gst_structure_new ("video/x-msmpeg",
5777 "msmpegversion", G_TYPE_INT, 43, NULL), NULL);
5779 caps = gst_caps_new_simple ("video/x-msmpeg",
5780 "msmpegversion", G_TYPE_INT, 43, NULL);
5781 *codec_name = g_strdup ("Microsoft MPEG-4 v.3");
5782 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG1) ||
5783 !strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG2)) {
5784 gint mpegversion = -1;
5786 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG1))
5788 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG2))
5791 g_assert_not_reached ();
5793 caps = gst_caps_new_simple ("video/mpeg",
5794 "systemstream", G_TYPE_BOOLEAN, FALSE,
5795 "mpegversion", G_TYPE_INT, mpegversion, NULL);
5796 *codec_name = g_strdup_printf ("MPEG-%d video", mpegversion);
5797 context->postprocess_frame = gst_matroska_demux_add_mpeg_seq_header;
5798 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MJPEG)) {
5799 caps = gst_caps_new_simple ("image/jpeg", NULL);
5800 *codec_name = g_strdup ("Motion-JPEG");
5801 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AVC)) {
5802 caps = gst_caps_new_simple ("video/x-h264", NULL);
5804 GstBuffer *priv = gst_buffer_new_and_alloc (size);
5806 memcpy (GST_BUFFER_DATA (priv), data, size);
5807 gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
5808 gst_buffer_unref (priv);
5811 *codec_name = g_strdup ("H264");
5812 } else if ((!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1)) ||
5813 (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2)) ||
5814 (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3)) ||
5815 (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4))) {
5816 gint rmversion = -1;
5818 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1))
5820 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2))
5822 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3))
5824 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4))
5827 caps = gst_caps_new_simple ("video/x-pn-realvideo",
5828 "rmversion", G_TYPE_INT, rmversion, NULL);
5829 GST_DEBUG ("data:%p, size:0x%x", data, size);
5830 /* We need to extract the extradata ! */
5831 if (data && (size >= 0x22)) {
5836 subformat = GST_READ_UINT32_BE (data + 0x1a);
5837 rformat = GST_READ_UINT32_BE (data + 0x1e);
5839 priv = gst_buffer_new_and_alloc (size - 0x1a);
5841 memcpy (GST_BUFFER_DATA (priv), data + 0x1a, size - 0x1a);
5842 gst_caps_set_simple (caps,
5843 "codec_data", GST_TYPE_BUFFER, priv,
5844 "format", G_TYPE_INT, rformat,
5845 "subformat", G_TYPE_INT, subformat, NULL);
5846 gst_buffer_unref (priv);
5849 *codec_name = g_strdup_printf ("RealVideo %d.0", rmversion);
5850 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_THEORA)) {
5851 caps = gst_caps_new_simple ("video/x-theora", NULL);
5852 context->send_xiph_headers = TRUE;
5853 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_DIRAC)) {
5854 caps = gst_caps_new_simple ("video/x-dirac", NULL);
5855 context->send_xiph_headers = FALSE;
5857 GST_WARNING ("Unknown codec '%s', cannot build Caps", codec_id);
5863 GstStructure *structure;
5865 for (i = 0; i < gst_caps_get_size (caps); i++) {
5866 structure = gst_caps_get_structure (caps, i);
5868 /* FIXME: use the real unit here! */
5869 GST_DEBUG ("video size %dx%d, target display size %dx%d (any unit)",
5870 videocontext->pixel_width,
5871 videocontext->pixel_height,
5872 videocontext->display_width, videocontext->display_height);
5874 /* pixel width and height are the w and h of the video in pixels */
5875 if (videocontext->pixel_width > 0 && videocontext->pixel_height > 0) {
5876 gint w = videocontext->pixel_width;
5878 gint h = videocontext->pixel_height;
5880 gst_structure_set (structure,
5881 "width", G_TYPE_INT, w, "height", G_TYPE_INT, h, NULL);
5884 if (videocontext->display_width > 0 && videocontext->display_height > 0) {
5887 /* calculate the pixel aspect ratio using the display and pixel w/h */
5888 n = videocontext->display_width * videocontext->pixel_height;
5889 d = videocontext->display_height * videocontext->pixel_width;
5890 GST_DEBUG ("setting PAR to %d/%d", n, d);
5891 gst_structure_set (structure, "pixel-aspect-ratio",
5893 videocontext->display_width * videocontext->pixel_height,
5894 videocontext->display_height * videocontext->pixel_width, NULL);
5897 if (videocontext->default_fps > 0.0) {
5898 GValue fps_double = { 0, };
5899 GValue fps_fraction = { 0, };
5901 g_value_init (&fps_double, G_TYPE_DOUBLE);
5902 g_value_init (&fps_fraction, GST_TYPE_FRACTION);
5903 g_value_set_double (&fps_double, videocontext->default_fps);
5904 g_value_transform (&fps_double, &fps_fraction);
5906 GST_DEBUG ("using default fps %f", videocontext->default_fps);
5908 gst_structure_set_value (structure, "framerate", &fps_fraction);
5909 g_value_unset (&fps_double);
5910 g_value_unset (&fps_fraction);
5911 } else if (context->default_duration > 0) {
5912 GValue fps_double = { 0, };
5913 GValue fps_fraction = { 0, };
5915 g_value_init (&fps_double, G_TYPE_DOUBLE);
5916 g_value_init (&fps_fraction, GST_TYPE_FRACTION);
5917 g_value_set_double (&fps_double, (gdouble) GST_SECOND /
5918 gst_guint64_to_gdouble (context->default_duration));
5919 g_value_transform (&fps_double, &fps_fraction);
5921 GST_DEBUG ("using default duration %" G_GUINT64_FORMAT,
5922 context->default_duration);
5924 gst_structure_set_value (structure, "framerate", &fps_fraction);
5925 g_value_unset (&fps_double);
5926 g_value_unset (&fps_fraction);
5928 /* sort of a hack to get most codecs to support,
5929 * even if the default_duration is missing */
5930 gst_structure_set (structure, "framerate", GST_TYPE_FRACTION,
5935 gst_caps_do_simplify (caps);
5942 * Some AAC specific code... *sigh*
5943 * FIXME: maybe we should use '15' and code the sample rate explicitly
5944 * if the sample rate doesn't match the predefined rates exactly? (tpm)
5948 aac_rate_idx (gint rate)
5952 else if (75132 <= rate)
5954 else if (55426 <= rate)
5956 else if (46009 <= rate)
5958 else if (37566 <= rate)
5960 else if (27713 <= rate)
5962 else if (23004 <= rate)
5964 else if (18783 <= rate)
5966 else if (13856 <= rate)
5968 else if (11502 <= rate)
5970 else if (9391 <= rate)
5977 aac_profile_idx (const gchar * codec_id)
5981 if (strlen (codec_id) <= 12)
5983 else if (!strncmp (&codec_id[12], "MAIN", 4))
5985 else if (!strncmp (&codec_id[12], "LC", 2))
5987 else if (!strncmp (&codec_id[12], "SSR", 3))
5995 #define AAC_SYNC_EXTENSION_TYPE 0x02b7
5998 gst_matroska_demux_audio_caps (GstMatroskaTrackAudioContext *
5999 audiocontext, const gchar * codec_id, guint8 * data, guint size,
6000 gchar ** codec_name)
6002 GstMatroskaTrackContext *context = (GstMatroskaTrackContext *) audiocontext;
6003 GstCaps *caps = NULL;
6005 g_assert (audiocontext != NULL);
6006 g_assert (codec_name != NULL);
6008 context->send_xiph_headers = FALSE;
6009 context->send_flac_headers = FALSE;
6010 context->send_speex_headers = FALSE;
6012 /* TODO: check if we have all codec types from matroska-ids.h
6013 * check if we have to do more special things with codec_private
6014 * check if we need bitdepth in different places too
6015 * implement channel position magic
6017 * GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID9
6018 * GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID10
6019 * GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDMC
6020 * GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDM2
6023 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1) ||
6024 !strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2) ||
6025 !strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L3)) {
6028 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1))
6030 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2))
6032 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L3))
6035 g_assert_not_reached ();
6037 caps = gst_caps_new_simple ("audio/mpeg",
6038 "mpegversion", G_TYPE_INT, 1, "layer", G_TYPE_INT, layer, NULL);
6039 *codec_name = g_strdup_printf ("MPEG-1 layer %d", layer);
6040 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE) ||
6041 !strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_LE)) {
6042 gint endianness = -1;
6044 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE))
6045 endianness = G_BIG_ENDIAN;
6046 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_LE))
6047 endianness = G_LITTLE_ENDIAN;
6049 g_assert_not_reached ();
6051 caps = gst_caps_new_simple ("audio/x-raw-int",
6052 "width", G_TYPE_INT, audiocontext->bitdepth,
6053 "depth", G_TYPE_INT, audiocontext->bitdepth,
6054 "signed", G_TYPE_BOOLEAN, audiocontext->bitdepth != 8,
6055 "endianness", G_TYPE_INT, endianness, NULL);
6057 *codec_name = g_strdup_printf ("Raw %d-bit PCM audio",
6058 audiocontext->bitdepth);
6059 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_FLOAT)) {
6060 caps = gst_caps_new_simple ("audio/x-raw-float",
6061 "endianness", G_TYPE_INT, G_LITTLE_ENDIAN,
6062 "width", G_TYPE_INT, audiocontext->bitdepth, NULL);
6063 *codec_name = g_strdup_printf ("Raw %d-bit floating-point audio",
6064 audiocontext->bitdepth);
6065 } else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AC3,
6066 strlen (GST_MATROSKA_CODEC_ID_AUDIO_AC3))) {
6067 caps = gst_caps_new_simple ("audio/x-ac3", NULL);
6068 *codec_name = g_strdup ("AC-3 audio");
6069 } else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_EAC3,
6070 strlen (GST_MATROSKA_CODEC_ID_AUDIO_EAC3))) {
6071 caps = gst_caps_new_simple ("audio/x-eac3", NULL);
6072 *codec_name = g_strdup ("E-AC-3 audio");
6073 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_DTS)) {
6074 caps = gst_caps_new_simple ("audio/x-dts", NULL);
6075 *codec_name = g_strdup ("DTS audio");
6076 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_VORBIS)) {
6077 caps = gst_caps_new_simple ("audio/x-vorbis", NULL);
6078 context->send_xiph_headers = TRUE;
6079 /* vorbis decoder does tags */
6080 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_FLAC)) {
6081 caps = gst_caps_new_simple ("audio/x-flac", NULL);
6082 context->send_flac_headers = TRUE;
6083 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_SPEEX)) {
6084 caps = gst_caps_new_simple ("audio/x-speex", NULL);
6085 context->send_speex_headers = TRUE;
6086 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_ACM)) {
6087 gst_riff_strf_auds auds;
6090 GstBuffer *codec_data = gst_buffer_new ();
6092 /* little-endian -> byte-order */
6093 auds.format = GST_READ_UINT16_LE (data);
6094 auds.channels = GST_READ_UINT16_LE (data + 2);
6095 auds.rate = GST_READ_UINT32_LE (data + 4);
6096 auds.av_bps = GST_READ_UINT32_LE (data + 8);
6097 auds.blockalign = GST_READ_UINT16_LE (data + 12);
6098 auds.size = GST_READ_UINT16_LE (data + 16);
6100 /* 18 is the waveformatex size */
6101 gst_buffer_set_data (codec_data, data + 18, auds.size);
6103 caps = gst_riff_create_audio_caps (auds.format, NULL, &auds, NULL,
6104 codec_data, codec_name);
6105 gst_buffer_unref (codec_data);
6107 } else if (g_str_has_prefix (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC)) {
6108 GstBuffer *priv = NULL;
6109 gint mpegversion = -1;
6110 gint rate_idx, profile;
6111 guint8 *data = NULL;
6113 /* unspecified AAC profile with opaque private codec data */
6114 if (strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC) == 0) {
6115 if (context->codec_priv_size >= 2) {
6116 guint obj_type, freq_index, explicit_freq_bytes = 0;
6118 codec_id = GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4;
6119 freq_index = (GST_READ_UINT16_BE (context->codec_priv) & 0x780) >> 7;
6120 obj_type = (GST_READ_UINT16_BE (context->codec_priv) & 0xF800) >> 11;
6121 if (freq_index == 15)
6122 explicit_freq_bytes = 3;
6123 GST_DEBUG ("obj_type = %u, freq_index = %u", obj_type, freq_index);
6124 priv = gst_buffer_new_and_alloc (context->codec_priv_size);
6125 memcpy (GST_BUFFER_DATA (priv), context->codec_priv,
6126 context->codec_priv_size);
6127 /* assume SBR if samplerate <= 24kHz */
6128 if (obj_type == 5 || (freq_index >= 6 && freq_index != 15) ||
6129 (context->codec_priv_size == (5 + explicit_freq_bytes))) {
6130 audiocontext->samplerate *= 2;
6133 GST_WARNING ("Opaque A_AAC codec ID, but no codec private data");
6134 /* just try this and see what happens ... */
6135 codec_id = GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4;
6139 /* make up decoder-specific data if it is not supplied */
6141 priv = gst_buffer_new_and_alloc (5);
6142 data = GST_BUFFER_DATA (priv);
6143 rate_idx = aac_rate_idx (audiocontext->samplerate);
6144 profile = aac_profile_idx (codec_id);
6146 data[0] = ((profile + 1) << 3) | ((rate_idx & 0xE) >> 1);
6147 data[1] = ((rate_idx & 0x1) << 7) | (audiocontext->channels << 3);
6148 GST_BUFFER_SIZE (priv) = 2;
6151 if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2,
6152 strlen (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2))) {
6154 } else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4,
6155 strlen (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4))) {
6158 if (g_strrstr (codec_id, "SBR")) {
6159 /* HE-AAC (aka SBR AAC) */
6160 audiocontext->samplerate *= 2;
6161 rate_idx = aac_rate_idx (audiocontext->samplerate);
6162 data[2] = AAC_SYNC_EXTENSION_TYPE >> 3;
6163 data[3] = ((AAC_SYNC_EXTENSION_TYPE & 0x07) << 5) | 5;
6164 data[4] = (1 << 7) | (rate_idx << 3);
6165 GST_BUFFER_SIZE (priv) = 5;
6168 g_assert_not_reached ();
6171 caps = gst_caps_new_simple ("audio/mpeg",
6172 "mpegversion", G_TYPE_INT, mpegversion,
6173 "framed", G_TYPE_BOOLEAN, TRUE, NULL);
6175 gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
6177 *codec_name = g_strdup_printf ("MPEG-%d AAC audio", mpegversion);
6178 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_TTA)) {
6179 caps = gst_caps_new_simple ("audio/x-tta",
6180 "width", G_TYPE_INT, audiocontext->bitdepth, NULL);
6181 *codec_name = g_strdup ("TTA audio");
6182 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_WAVPACK4)) {
6183 caps = gst_caps_new_simple ("audio/x-wavpack",
6184 "width", G_TYPE_INT, audiocontext->bitdepth,
6185 "framed", G_TYPE_BOOLEAN, TRUE, NULL);
6186 *codec_name = g_strdup ("Wavpack audio");
6187 context->postprocess_frame = gst_matroska_demux_add_wvpk_header;
6188 audiocontext->wvpk_block_index = 0;
6189 } else if ((!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4)) ||
6190 (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4)) ||
6191 (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK))) {
6192 gint raversion = -1;
6194 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4))
6196 else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK))
6201 caps = gst_caps_new_simple ("audio/x-pn-realaudio",
6202 "raversion", G_TYPE_INT, raversion, NULL);
6203 /* Extract extra information from caps, mapping varies based on codec */
6204 if (data && (size >= 0x50)) {
6211 guint extra_data_size;
6213 GST_ERROR ("real audio raversion:%d", raversion);
6214 if (raversion == 8) {
6216 flavor = GST_READ_UINT16_BE (data + 22);
6217 packet_size = GST_READ_UINT32_BE (data + 24);
6218 height = GST_READ_UINT16_BE (data + 40);
6219 leaf_size = GST_READ_UINT16_BE (data + 44);
6220 sample_width = GST_READ_UINT16_BE (data + 58);
6221 extra_data_size = GST_READ_UINT32_BE (data + 74);
6224 ("flavor:%d, packet_size:%d, height:%d, leaf_size:%d, sample_width:%d, extra_data_size:%d",
6225 flavor, packet_size, height, leaf_size, sample_width,
6227 gst_caps_set_simple (caps, "flavor", G_TYPE_INT, flavor, "packet_size",
6228 G_TYPE_INT, packet_size, "height", G_TYPE_INT, height, "leaf_size",
6229 G_TYPE_INT, leaf_size, "width", G_TYPE_INT, sample_width, NULL);
6231 if ((size - 78) >= extra_data_size) {
6232 priv = gst_buffer_new_and_alloc (extra_data_size);
6233 memcpy (GST_BUFFER_DATA (priv), data + 78, extra_data_size);
6234 gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
6235 gst_buffer_unref (priv);
6240 *codec_name = g_strdup_printf ("RealAudio %d.0", raversion);
6241 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_SIPR)) {
6242 caps = gst_caps_new_simple ("audio/x-sipro", NULL);
6243 *codec_name = g_strdup ("Sipro/ACELP.NET Voice Codec");
6244 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_RALF)) {
6245 caps = gst_caps_new_simple ("audio/x-ralf-mpeg4-generic", NULL);
6246 *codec_name = g_strdup ("Real Audio Lossless");
6247 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_ATRC)) {
6248 caps = gst_caps_new_simple ("audio/x-vnd.sony.atrac3", NULL);
6249 *codec_name = g_strdup ("Sony ATRAC3");
6251 GST_WARNING ("Unknown codec '%s', cannot build Caps", codec_id);
6256 if (audiocontext->samplerate > 0 && audiocontext->channels > 0) {
6259 for (i = 0; i < gst_caps_get_size (caps); i++) {
6260 gst_structure_set (gst_caps_get_structure (caps, i),
6261 "channels", G_TYPE_INT, audiocontext->channels,
6262 "rate", G_TYPE_INT, audiocontext->samplerate, NULL);
6266 gst_caps_do_simplify (caps);
6273 gst_matroska_demux_subtitle_caps (GstMatroskaTrackSubtitleContext *
6274 subtitlecontext, const gchar * codec_id, gpointer data, guint size)
6276 GstCaps *caps = NULL;
6277 GstMatroskaTrackContext *context =
6278 (GstMatroskaTrackContext *) subtitlecontext;
6280 /* for backwards compatibility */
6281 if (!g_ascii_strcasecmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_ASCII))
6282 codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_UTF8;
6283 else if (!g_ascii_strcasecmp (codec_id, "S_SSA"))
6284 codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_SSA;
6285 else if (!g_ascii_strcasecmp (codec_id, "S_ASS"))
6286 codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_ASS;
6287 else if (!g_ascii_strcasecmp (codec_id, "S_USF"))
6288 codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_USF;
6290 /* TODO: Add GST_MATROSKA_CODEC_ID_SUBTITLE_BMP support
6291 * Check if we have to do something with codec_private */
6292 if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_UTF8)) {
6293 caps = gst_caps_new_simple ("text/plain", NULL);
6294 context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
6295 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_SSA)) {
6296 caps = gst_caps_new_simple ("application/x-ssa", NULL);
6297 context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
6298 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_ASS)) {
6299 caps = gst_caps_new_simple ("application/x-ass", NULL);
6300 context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
6301 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_USF)) {
6302 caps = gst_caps_new_simple ("application/x-usf", NULL);
6303 context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
6304 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_VOBSUB)) {
6305 caps = gst_caps_new_simple ("video/x-dvd-subpicture", NULL);
6306 ((GstMatroskaTrackContext *) subtitlecontext)->send_dvd_event = TRUE;
6307 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_HDMVPGS)) {
6308 caps = gst_caps_new_simple ("subpicture/x-pgs", NULL);
6309 } else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_KATE)) {
6310 caps = gst_caps_new_simple ("subtitle/x-kate", NULL);
6311 context->send_xiph_headers = TRUE;
6313 GST_DEBUG ("Unknown subtitle stream: codec_id='%s'", codec_id);
6314 caps = gst_caps_new_simple ("application/x-subtitle-unknown", NULL);
6317 if (data != NULL && size > 0) {
6320 buf = gst_buffer_new_and_alloc (size);
6321 memcpy (GST_BUFFER_DATA (buf), data, size);
6322 gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, buf, NULL);
6323 gst_buffer_unref (buf);
6330 gst_matroska_demux_set_index (GstElement * element, GstIndex * index)
6332 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
6334 GST_OBJECT_LOCK (demux);
6335 if (demux->element_index)
6336 gst_object_unref (demux->element_index);
6337 demux->element_index = index ? gst_object_ref (index) : NULL;
6338 GST_OBJECT_UNLOCK (demux);
6339 GST_DEBUG_OBJECT (demux, "Set index %" GST_PTR_FORMAT, demux->element_index);
6343 gst_matroska_demux_get_index (GstElement * element)
6345 GstIndex *result = NULL;
6346 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
6348 GST_OBJECT_LOCK (demux);
6349 if (demux->element_index)
6350 result = gst_object_ref (demux->element_index);
6351 GST_OBJECT_UNLOCK (demux);
6353 GST_DEBUG_OBJECT (demux, "Returning index %" GST_PTR_FORMAT, result);
6358 static GstStateChangeReturn
6359 gst_matroska_demux_change_state (GstElement * element,
6360 GstStateChange transition)
6362 GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
6363 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
6365 /* handle upwards state changes here */
6366 switch (transition) {
6371 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
6373 /* handle downwards state changes */
6374 switch (transition) {
6375 case GST_STATE_CHANGE_PAUSED_TO_READY:
6376 gst_matroska_demux_reset (GST_ELEMENT (demux));
6386 gst_matroska_demux_plugin_init (GstPlugin * plugin)
6390 /* create an elementfactory for the matroska_demux element */
6391 if (!gst_element_register (plugin, "matroskademux",
6392 GST_RANK_PRIMARY, GST_TYPE_MATROSKA_DEMUX))