1 /*****************************************************************************
2 * mkv.cpp : matroska demuxer
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Steve Lhomme <steve.lhomme@free.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 #include "matroska_segment.hpp"
27 #include "chapters.hpp"
32 #include <vlc_memory.h>
35 #include "../vobsub.h"
38 /* GetFourCC helper */
39 #define GetFOURCC( p ) __GetFOURCC( (uint8_t*)p )
40 static vlc_fourcc_t __GetFOURCC( uint8_t *p )
42 return VLC_FOURCC( p[0], p[1], p[2], p[3] );
46 matroska_segment_c::~matroska_segment_c()
48 for( size_t i_track = 0; i_track < tracks.size(); i_track++ )
50 delete tracks[i_track]->p_compression_data;
51 es_format_Clean( &tracks[i_track]->fmt );
52 free( tracks[i_track]->p_extra_data );
53 free( tracks[i_track]->psz_codec );
54 delete tracks[i_track];
57 free( psz_writing_application );
58 free( psz_muxing_application );
59 free( psz_segment_filename );
67 delete p_prev_segment_uid;
68 delete p_next_segment_uid;
70 std::vector<chapter_edition_c*>::iterator index = stored_editions.begin();
71 while ( index != stored_editions.end() )
76 std::vector<chapter_translation_c*>::iterator indext = translations.begin();
77 while ( indext != translations.end() )
82 std::vector<KaxSegmentFamily*>::iterator indexf = families.begin();
83 while ( indexf != families.end() )
91 /*****************************************************************************
93 * * LoadCues : load the cues element and update index
95 * * LoadTags : load ... the tags element
97 * * InformationCreate : create all information, load tags if present
99 *****************************************************************************/
100 void matroska_segment_c::LoadCues( KaxCues *cues )
107 msg_Err( &sys.demuxer, "There can be only 1 Cues per section." );
111 ep = new EbmlParser( &es, cues, &sys.demuxer );
112 while( ( el = ep->Get() ) != NULL )
114 if( MKV_IS_ID( el, KaxCuePoint ) )
116 #define idx p_indexes[i_index]
119 idx.i_block_number= -1;
125 while( ( el = ep->Get() ) != NULL )
127 if( MKV_IS_ID( el, KaxCueTime ) )
129 KaxCueTime &ctime = *(KaxCueTime*)el;
131 ctime.ReadData( es.I_O() );
133 idx.i_time = uint64( ctime ) * i_timescale / (mtime_t)1000;
135 else if( MKV_IS_ID( el, KaxCueTrackPositions ) )
138 while( ( el = ep->Get() ) != NULL )
140 if( MKV_IS_ID( el, KaxCueTrack ) )
142 KaxCueTrack &ctrack = *(KaxCueTrack*)el;
144 ctrack.ReadData( es.I_O() );
145 idx.i_track = uint16( ctrack );
147 else if( MKV_IS_ID( el, KaxCueClusterPosition ) )
149 KaxCueClusterPosition &ccpos = *(KaxCueClusterPosition*)el;
151 ccpos.ReadData( es.I_O() );
152 idx.i_position = segment->GetGlobalPosition( uint64( ccpos ) );
154 else if( MKV_IS_ID( el, KaxCueBlockNumber ) )
156 KaxCueBlockNumber &cbnum = *(KaxCueBlockNumber*)el;
158 cbnum.ReadData( es.I_O() );
159 idx.i_block_number = uint32( cbnum );
163 msg_Dbg( &sys.demuxer, " * Unknown (%s)", typeid(*el).name() );
170 msg_Dbg( &sys.demuxer, " * Unknown (%s)", typeid(*el).name() );
176 msg_Dbg( &sys.demuxer, " * added time=%"PRId64" pos=%"PRId64
177 " track=%d bnum=%d", idx.i_time, idx.i_position,
178 idx.i_track, idx.i_block_number );
182 if( i_index >= i_index_max )
185 p_indexes = (mkv_index_t*)realloc_or_free( p_indexes,
186 sizeof( mkv_index_t ) * i_index_max );
193 msg_Dbg( &sys.demuxer, " * Unknown (%s)", typeid(*el).name() );
198 msg_Dbg( &sys.demuxer, "| - loading cues done." );
201 void matroska_segment_c::LoadTags( KaxTags *tags )
206 /* Master elements */
207 ep = new EbmlParser( &es, tags, &sys.demuxer );
209 while( ( el = ep->Get() ) != NULL )
211 if( MKV_IS_ID( el, KaxTag ) )
213 msg_Dbg( &sys.demuxer, "+ Tag" );
215 while( ( el = ep->Get() ) != NULL )
217 if( MKV_IS_ID( el, KaxTagTargets ) )
219 msg_Dbg( &sys.demuxer, "| + Targets" );
221 while( ( el = ep->Get() ) != NULL )
223 msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
227 else if( MKV_IS_ID( el, KaxTagGeneral ) )
229 msg_Dbg( &sys.demuxer, "| + General" );
231 while( ( el = ep->Get() ) != NULL )
233 msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
237 else if( MKV_IS_ID( el, KaxTagGenres ) )
239 msg_Dbg( &sys.demuxer, "| + Genres" );
241 while( ( el = ep->Get() ) != NULL )
243 msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
247 else if( MKV_IS_ID( el, KaxTagAudioSpecific ) )
249 msg_Dbg( &sys.demuxer, "| + Audio Specific" );
251 while( ( el = ep->Get() ) != NULL )
253 msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
257 else if( MKV_IS_ID( el, KaxTagImageSpecific ) )
259 msg_Dbg( &sys.demuxer, "| + Images Specific" );
261 while( ( el = ep->Get() ) != NULL )
263 msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
267 else if( MKV_IS_ID( el, KaxTagMultiComment ) )
269 msg_Dbg( &sys.demuxer, "| + Multi Comment" );
271 else if( MKV_IS_ID( el, KaxTagMultiCommercial ) )
273 msg_Dbg( &sys.demuxer, "| + Multi Commercial" );
275 else if( MKV_IS_ID( el, KaxTagMultiDate ) )
277 msg_Dbg( &sys.demuxer, "| + Multi Date" );
279 else if( MKV_IS_ID( el, KaxTagMultiEntity ) )
281 msg_Dbg( &sys.demuxer, "| + Multi Entity" );
283 else if( MKV_IS_ID( el, KaxTagMultiIdentifier ) )
285 msg_Dbg( &sys.demuxer, "| + Multi Identifier" );
287 else if( MKV_IS_ID( el, KaxTagMultiLegal ) )
289 msg_Dbg( &sys.demuxer, "| + Multi Legal" );
291 else if( MKV_IS_ID( el, KaxTagMultiTitle ) )
293 msg_Dbg( &sys.demuxer, "| + Multi Title" );
297 msg_Dbg( &sys.demuxer, "| + LoadTag Unknown (%s)", typeid( *el ).name() );
304 msg_Dbg( &sys.demuxer, "+ Unknown (%s)", typeid( *el ).name() );
309 msg_Dbg( &sys.demuxer, "loading tags done." );
312 /*****************************************************************************
314 *****************************************************************************/
315 void matroska_segment_c::InformationCreate( )
317 sys.meta = vlc_meta_New();
321 vlc_meta_SetTitle( sys.meta, psz_title );
325 vlc_meta_SetDate( sys.meta, psz_date_utc );
328 if( psz_segment_filename )
330 fprintf( stderr, "***** WARNING: Unhandled meta - Use custom\n" );
332 if( psz_muxing_application )
334 fprintf( stderr, "***** WARNING: Unhandled meta - Use custom\n" );
336 if( psz_writing_application )
338 fprintf( stderr, "***** WARNING: Unhandled meta - Use custom\n" );
341 for( size_t i_track = 0; i_track < tracks.size(); i_track++ )
343 // mkv_track_t *tk = tracks[i_track];
344 // vlc_meta_t *mtk = vlc_meta_New();
345 fprintf( stderr, "***** WARNING: Unhandled child meta\n");
349 if( i_tags_position >= 0 )
353 stream_Control( sys.demuxer.s, STREAM_CAN_FASTSEEK, &b_seekable );
363 /*****************************************************************************
365 *****************************************************************************/
367 void matroska_segment_c::IndexAppendCluster( KaxCluster *cluster )
369 #define idx p_indexes[i_index]
371 idx.i_block_number= -1;
372 idx.i_position = cluster->GetElementPosition();
377 if( i_index >= i_index_max )
380 p_indexes = (mkv_index_t*)realloc_or_free( p_indexes,
381 sizeof( mkv_index_t ) * i_index_max );
388 bool matroska_segment_c::PreloadFamily( const matroska_segment_c & of_segment )
393 for (size_t i=0; i<families.size(); i++)
395 for (size_t j=0; j<of_segment.families.size(); j++)
397 if ( *(families[i]) == *(of_segment.families[j]) )
405 bool matroska_segment_c::CompareSegmentUIDs( const matroska_segment_c * p_item_a, const matroska_segment_c * p_item_b )
409 if ( p_item_a == NULL || p_item_b == NULL )
412 p_tmp = (EbmlBinary *)p_item_a->p_segment_uid;
413 if ( p_item_b->p_prev_segment_uid != NULL
414 && *p_tmp == *p_item_b->p_prev_segment_uid )
417 p_tmp = (EbmlBinary *)p_item_a->p_next_segment_uid;
421 if ( p_item_b->p_segment_uid != NULL
422 && *p_tmp == *p_item_b->p_segment_uid )
425 if ( p_item_b->p_prev_segment_uid != NULL
426 && *p_tmp == *p_item_b->p_prev_segment_uid )
432 bool matroska_segment_c::Preload( )
437 EbmlElement *el = NULL;
439 ep->Reset( &sys.demuxer );
441 while( ( el = ep->Get() ) != NULL )
443 if( MKV_IS_ID( el, KaxSeekHead ) )
445 /* Multiple allowed */
446 /* We bail at 10, to prevent possible recursion */
447 msg_Dbg( &sys.demuxer, "| + Seek head" );
448 if( i_seekhead_count < 10 )
450 i_seekhead_position = (int64_t) es.I_O().getFilePointer();
451 ParseSeekHead( static_cast<KaxSeekHead*>( el ) );
454 else if( MKV_IS_ID( el, KaxInfo ) )
456 /* Multiple allowed, mandatory */
457 msg_Dbg( &sys.demuxer, "| + Information" );
458 if( i_info_position < 0 ) // FIXME
459 ParseInfo( static_cast<KaxInfo*>( el ) );
460 i_info_position = (int64_t) es.I_O().getFilePointer();
462 else if( MKV_IS_ID( el, KaxTracks ) )
464 /* Multiple allowed */
465 msg_Dbg( &sys.demuxer, "| + Tracks" );
466 if( i_tracks_position < 0 ) // FIXME
467 ParseTracks( static_cast<KaxTracks*>( el ) );
468 if ( tracks.size() == 0 )
470 msg_Err( &sys.demuxer, "No tracks supported" );
473 i_tracks_position = (int64_t) es.I_O().getFilePointer();
475 else if( MKV_IS_ID( el, KaxCues ) )
477 msg_Dbg( &sys.demuxer, "| + Cues" );
478 if( i_cues_position < 0 )
479 LoadCues( static_cast<KaxCues*>( el ) );
480 i_cues_position = (int64_t) es.I_O().getFilePointer();
482 else if( MKV_IS_ID( el, KaxCluster ) )
484 msg_Dbg( &sys.demuxer, "| + Cluster" );
486 cluster = (KaxCluster*)el;
488 i_cluster_pos = i_start_pos = cluster->GetElementPosition();
492 /* stop pre-parsing the stream */
495 else if( MKV_IS_ID( el, KaxAttachments ) )
497 msg_Dbg( &sys.demuxer, "| + Attachments" );
498 if( i_attachments_position < 0 )
499 ParseAttachments( static_cast<KaxAttachments*>( el ) );
500 i_attachments_position = (int64_t) es.I_O().getFilePointer();
502 else if( MKV_IS_ID( el, KaxChapters ) )
504 msg_Dbg( &sys.demuxer, "| + Chapters" );
505 if( i_chapters_position < 0 )
506 ParseChapters( static_cast<KaxChapters*>( el ) );
507 i_chapters_position = (int64_t) es.I_O().getFilePointer();
509 else if( MKV_IS_ID( el, KaxTag ) )
511 msg_Dbg( &sys.demuxer, "| + Tags" );
512 if( i_tags_position < 0) // FIXME
513 ;//LoadTags( static_cast<KaxTags*>( el ) );
514 i_tags_position = (int64_t) es.I_O().getFilePointer();
517 msg_Dbg( &sys.demuxer, "| + Preload Unknown (%s)", typeid(*el).name() );
525 /* Here we try to load elements that were found in Seek Heads, but not yet parsed */
526 bool matroska_segment_c::LoadSeekHeadItem( const EbmlCallbacks & ClassInfos, int64_t i_element_position )
528 int64_t i_sav_position = (int64_t)es.I_O().getFilePointer();
531 es.I_O().setFilePointer( i_element_position, seek_beginning );
532 el = es.FindNextID( ClassInfos, 0xFFFFFFFFL);
536 msg_Err( &sys.demuxer, "cannot load some cues/chapters/tags etc. (broken seekhead or file)" );
537 es.I_O().setFilePointer( i_sav_position, seek_beginning );
541 if( MKV_IS_ID( el, KaxSeekHead ) )
543 /* Multiple allowed */
544 msg_Dbg( &sys.demuxer, "| + Seek head" );
545 if( i_seekhead_count < 10 )
547 i_seekhead_position = i_element_position;
548 ParseSeekHead( static_cast<KaxSeekHead*>( el ) );
551 else if( MKV_IS_ID( el, KaxInfo ) ) // FIXME
553 /* Multiple allowed, mandatory */
554 msg_Dbg( &sys.demuxer, "| + Information" );
555 if( i_info_position < 0 )
556 ParseInfo( static_cast<KaxInfo*>( el ) );
557 i_info_position = i_element_position;
559 else if( MKV_IS_ID( el, KaxTracks ) ) // FIXME
561 /* Multiple allowed */
562 msg_Dbg( &sys.demuxer, "| + Tracks" );
563 if( i_tracks_position < 0 )
564 ParseTracks( static_cast<KaxTracks*>( el ) );
565 if ( tracks.size() == 0 )
567 msg_Err( &sys.demuxer, "No tracks supported" );
569 es.I_O().setFilePointer( i_sav_position, seek_beginning );
572 i_tracks_position = i_element_position;
574 else if( MKV_IS_ID( el, KaxCues ) )
576 msg_Dbg( &sys.demuxer, "| + Cues" );
577 if( i_cues_position < 0 )
578 LoadCues( static_cast<KaxCues*>( el ) );
579 i_cues_position = i_element_position;
581 else if( MKV_IS_ID( el, KaxAttachments ) )
583 msg_Dbg( &sys.demuxer, "| + Attachments" );
584 if( i_attachments_position < 0 )
585 ParseAttachments( static_cast<KaxAttachments*>( el ) );
586 i_attachments_position = i_element_position;
588 else if( MKV_IS_ID( el, KaxChapters ) )
590 msg_Dbg( &sys.demuxer, "| + Chapters" );
591 if( i_chapters_position < 0 )
592 ParseChapters( static_cast<KaxChapters*>( el ) );
593 i_chapters_position = i_element_position;
595 else if( MKV_IS_ID( el, KaxTag ) ) // FIXME
597 msg_Dbg( &sys.demuxer, "| + Tags" );
598 if( i_tags_position < 0 )
599 ;//LoadTags( static_cast<KaxTags*>( el ) );
600 i_tags_position = i_element_position;
604 msg_Dbg( &sys.demuxer, "| + LoadSeekHeadItem Unknown (%s)", typeid(*el).name() );
608 es.I_O().setFilePointer( i_sav_position, seek_beginning );
612 int matroska_segment_c::BlockFindTrackIndex( size_t *pi_track,
613 const KaxBlock *p_block, const KaxSimpleBlock *p_simpleblock )
617 for( i_track = 0; i_track < tracks.size(); i_track++ )
619 const mkv_track_t *tk = tracks[i_track];
621 if( ( p_block != NULL && tk->i_number == p_block->TrackNum() ) ||
622 ( p_simpleblock != NULL && tk->i_number == p_simpleblock->TrackNum() ) )
628 if( i_track >= tracks.size() )
636 bool matroska_segment_c::Select( mtime_t i_start_time )
641 msg_Dbg( &sys.demuxer, "found %d es", (int)tracks.size() );
642 sys.b_pci_packet_set = false;
644 for( i_track = 0; i_track < tracks.size(); i_track++ )
646 mkv_track_t *p_tk = tracks[i_track];
647 es_format_t *p_fmt = &p_tk->fmt;
649 if( tracks[i_track]->fmt.i_cat == UNKNOWN_ES )
651 msg_Warn( &sys.demuxer, "invalid track[%d, n=%d]", (int)i_track, tracks[i_track]->i_number );
652 tracks[i_track]->p_es = NULL;
656 if( !strcmp( tracks[i_track]->psz_codec, "V_MS/VFW/FOURCC" ) )
658 if( tracks[i_track]->i_extra_data < (int)sizeof( BITMAPINFOHEADER ) )
660 msg_Err( &sys.demuxer, "missing/invalid BITMAPINFOHEADER" );
661 tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
665 BITMAPINFOHEADER *p_bih = (BITMAPINFOHEADER*)tracks[i_track]->p_extra_data;
667 tracks[i_track]->fmt.video.i_width = GetDWLE( &p_bih->biWidth );
668 tracks[i_track]->fmt.video.i_height= GetDWLE( &p_bih->biHeight );
669 tracks[i_track]->fmt.i_codec = GetFOURCC( &p_bih->biCompression );
671 tracks[i_track]->fmt.i_extra = GetDWLE( &p_bih->biSize ) - sizeof( BITMAPINFOHEADER );
672 if( tracks[i_track]->fmt.i_extra > 0 )
674 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
675 assert( tracks[i_track]->fmt.p_extra );
676 memcpy( tracks[i_track]->fmt.p_extra, &p_bih[1], tracks[i_track]->fmt.i_extra );
679 p_tk->b_dts_only = true;
681 else if( !strcmp( tracks[i_track]->psz_codec, "V_MPEG1" ) ||
682 !strcmp( tracks[i_track]->psz_codec, "V_MPEG2" ) )
684 tracks[i_track]->fmt.i_codec = VLC_CODEC_MPGV;
686 else if( !strncmp( tracks[i_track]->psz_codec, "V_THEORA", 8 ) )
688 uint8_t *p_data = tracks[i_track]->p_extra_data;
689 tracks[i_track]->fmt.i_codec = VLC_CODEC_THEORA;
690 if( tracks[i_track]->i_extra_data >= 4 ) {
691 if( p_data[0] == 2 ) {
693 int i_size1 = 0, i_size2 = 0;
695 /* read size of first header packet */
696 while( *p_data == 0xFF &&
697 i < tracks[i_track]->i_extra_data )
706 msg_Dbg( &sys.demuxer, "first theora header size %d", i_size1 );
707 /* read size of second header packet */
708 while( *p_data == 0xFF &&
709 i < tracks[i_track]->i_extra_data )
718 int i_size3 = tracks[i_track]->i_extra_data - i - i_size1
720 msg_Dbg( &sys.demuxer, "second theora header size %d", i_size2 );
721 msg_Dbg( &sys.demuxer, "third theora header size %d", i_size3 );
722 tracks[i_track]->fmt.i_extra = i_size1 + i_size2 + i_size3
724 if( i_size1 > 0 && i_size2 > 0 && i_size3 > 0 ) {
725 tracks[i_track]->fmt.p_extra =
726 malloc( tracks[i_track]->fmt.i_extra );
727 assert( tracks[i_track]->fmt.p_extra );
728 uint8_t *p_out = (uint8_t*)tracks[i_track]->fmt.p_extra;
729 *p_out++ = (i_size1>>8) & 0xFF;
730 *p_out++ = i_size1 & 0xFF;
731 memcpy( p_out, p_data, i_size1 );
735 *p_out++ = (i_size2>>8) & 0xFF;
736 *p_out++ = i_size2 & 0xFF;
737 memcpy( p_out, p_data, i_size2 );
741 *p_out++ = (i_size3>>8) & 0xFF;
742 *p_out++ = i_size3 & 0xFF;
743 memcpy( p_out, p_data, i_size3 );
749 msg_Err( &sys.demuxer, "inconsistent theora extradata" );
753 msg_Err( &sys.demuxer, "Wrong number of ogg packets with theora headers (%d)", p_data[0] + 1 );
757 else if( !strncmp( tracks[i_track]->psz_codec, "V_REAL/RV", 9 ) )
759 if( !strcmp( p_tk->psz_codec, "V_REAL/RV10" ) )
760 p_fmt->i_codec = VLC_CODEC_RV10;
761 else if( !strcmp( p_tk->psz_codec, "V_REAL/RV20" ) )
762 p_fmt->i_codec = VLC_CODEC_RV20;
763 else if( !strcmp( p_tk->psz_codec, "V_REAL/RV30" ) )
764 p_fmt->i_codec = VLC_CODEC_RV30;
765 else if( !strcmp( p_tk->psz_codec, "V_REAL/RV40" ) )
766 p_fmt->i_codec = VLC_CODEC_RV40;
768 if( p_tk->i_extra_data > 26 )
770 p_fmt->p_extra = malloc( p_tk->i_extra_data - 26 );
773 p_fmt->i_extra = p_tk->i_extra_data - 26;
774 memcpy( p_fmt->p_extra, &p_tk->p_extra_data[26], p_fmt->i_extra );
777 p_tk->b_dts_only = true;
779 else if( !strncmp( tracks[i_track]->psz_codec, "V_DIRAC", 7 ) )
781 tracks[i_track]->fmt.i_codec = VLC_CODEC_DIRAC;
783 else if( !strncmp( tracks[i_track]->psz_codec, "V_MPEG4", 7 ) )
785 if( !strcmp( tracks[i_track]->psz_codec, "V_MPEG4/MS/V3" ) )
787 tracks[i_track]->fmt.i_codec = VLC_CODEC_DIV3;
789 else if( !strncmp( tracks[i_track]->psz_codec, "V_MPEG4/ISO", 11 ) )
791 /* A MPEG 4 codec, SP, ASP, AP or AVC */
792 if( !strcmp( tracks[i_track]->psz_codec, "V_MPEG4/ISO/AVC" ) )
793 tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'a', 'v', 'c', '1' );
795 tracks[i_track]->fmt.i_codec = VLC_CODEC_MP4V;
796 tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
797 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
798 assert( tracks[i_track]->fmt.p_extra );
799 memcpy( tracks[i_track]->fmt.p_extra,tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
802 else if( !strcmp( tracks[i_track]->psz_codec, "V_QUICKTIME" ) )
804 MP4_Box_t *p_box = (MP4_Box_t*)malloc( sizeof( MP4_Box_t ) );
806 stream_t *p_mp4_stream = stream_MemoryNew( VLC_OBJECT(&sys.demuxer),
807 tracks[i_track]->p_extra_data,
808 tracks[i_track]->i_extra_data,
810 if( MP4_ReadBoxCommon( p_mp4_stream, p_box ) &&
811 MP4_ReadBox_sample_vide( p_mp4_stream, p_box ) )
813 tracks[i_track]->fmt.i_codec = p_box->i_type;
814 tracks[i_track]->fmt.video.i_width = p_box->data.p_sample_vide->i_width;
815 tracks[i_track]->fmt.video.i_height = p_box->data.p_sample_vide->i_height;
816 tracks[i_track]->fmt.i_extra = p_box->data.p_sample_vide->i_qt_image_description;
817 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
818 assert( tracks[i_track]->fmt.p_extra );
819 memcpy( tracks[i_track]->fmt.p_extra, p_box->data.p_sample_vide->p_qt_image_description, tracks[i_track]->fmt.i_extra );
820 MP4_FreeBox_sample_vide( p_box );
826 stream_Delete( p_mp4_stream );
828 else if( !strcmp( tracks[i_track]->psz_codec, "A_MS/ACM" ) )
830 if( tracks[i_track]->i_extra_data < (int)sizeof( WAVEFORMATEX ) )
832 msg_Err( &sys.demuxer, "missing/invalid WAVEFORMATEX" );
833 tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
837 WAVEFORMATEX *p_wf = (WAVEFORMATEX*)tracks[i_track]->p_extra_data;
839 wf_tag_to_fourcc( GetWLE( &p_wf->wFormatTag ), &tracks[i_track]->fmt.i_codec, NULL );
841 tracks[i_track]->fmt.audio.i_channels = GetWLE( &p_wf->nChannels );
842 tracks[i_track]->fmt.audio.i_rate = GetDWLE( &p_wf->nSamplesPerSec );
843 tracks[i_track]->fmt.i_bitrate = GetDWLE( &p_wf->nAvgBytesPerSec ) * 8;
844 tracks[i_track]->fmt.audio.i_blockalign = GetWLE( &p_wf->nBlockAlign );;
845 tracks[i_track]->fmt.audio.i_bitspersample = GetWLE( &p_wf->wBitsPerSample );
847 tracks[i_track]->fmt.i_extra = GetWLE( &p_wf->cbSize );
848 if( tracks[i_track]->fmt.i_extra > 0 )
850 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
851 assert( tracks[i_track]->fmt.p_extra );
852 memcpy( tracks[i_track]->fmt.p_extra, &p_wf[1], tracks[i_track]->fmt.i_extra );
856 else if( !strcmp( tracks[i_track]->psz_codec, "A_MPEG/L3" ) ||
857 !strcmp( tracks[i_track]->psz_codec, "A_MPEG/L2" ) ||
858 !strcmp( tracks[i_track]->psz_codec, "A_MPEG/L1" ) )
860 tracks[i_track]->fmt.i_codec = VLC_CODEC_MPGA;
862 else if( !strcmp( tracks[i_track]->psz_codec, "A_AC3" ) )
864 tracks[i_track]->fmt.i_codec = VLC_CODEC_A52;
866 else if( !strcmp( tracks[i_track]->psz_codec, "A_EAC3" ) )
868 tracks[i_track]->fmt.i_codec = VLC_CODEC_EAC3;
870 else if( !strcmp( tracks[i_track]->psz_codec, "A_DTS" ) )
872 tracks[i_track]->fmt.i_codec = VLC_CODEC_DTS;
874 else if( !strcmp( tracks[i_track]->psz_codec, "A_MLP" ) )
876 tracks[i_track]->fmt.i_codec = VLC_CODEC_MLP;
878 else if( !strcmp( tracks[i_track]->psz_codec, "A_TRUEHD" ) )
880 /* FIXME when more samples arrive */
881 tracks[i_track]->fmt.i_codec = VLC_CODEC_TRUEHD;
882 p_fmt->b_packetized = false;
884 else if( !strcmp( tracks[i_track]->psz_codec, "A_FLAC" ) )
886 tracks[i_track]->fmt.i_codec = VLC_CODEC_FLAC;
887 tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
888 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
889 assert( tracks[i_track]->fmt.p_extra );
890 memcpy( tracks[i_track]->fmt.p_extra,tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
892 else if( !strcmp( tracks[i_track]->psz_codec, "A_VORBIS" ) )
894 int i, i_offset = 1, i_size[3], i_extra;
897 tracks[i_track]->fmt.i_codec = VLC_CODEC_VORBIS;
899 /* Split the 3 headers */
900 if( tracks[i_track]->p_extra_data[0] != 0x02 )
901 msg_Err( &sys.demuxer, "invalid vorbis header" );
903 for( i = 0; i < 2; i++ )
906 while( i_offset < tracks[i_track]->i_extra_data )
908 i_size[i] += tracks[i_track]->p_extra_data[i_offset];
909 if( tracks[i_track]->p_extra_data[i_offset++] != 0xff ) break;
913 i_size[0] = __MIN(i_size[0], tracks[i_track]->i_extra_data - i_offset);
914 i_size[1] = __MIN(i_size[1], tracks[i_track]->i_extra_data -i_offset -i_size[0]);
915 i_size[2] = tracks[i_track]->i_extra_data - i_offset - i_size[0] - i_size[1];
917 tracks[i_track]->fmt.i_extra = 3 * 2 + i_size[0] + i_size[1] + i_size[2];
918 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
919 assert( tracks[i_track]->fmt.p_extra );
920 p_extra = (uint8_t *)tracks[i_track]->fmt.p_extra; i_extra = 0;
921 for( i = 0; i < 3; i++ )
923 *(p_extra++) = i_size[i] >> 8;
924 *(p_extra++) = i_size[i] & 0xFF;
925 memcpy( p_extra, tracks[i_track]->p_extra_data + i_offset + i_extra,
927 p_extra += i_size[i];
928 i_extra += i_size[i];
931 else if( !strncmp( tracks[i_track]->psz_codec, "A_AAC/MPEG2/", strlen( "A_AAC/MPEG2/" ) ) ||
932 !strncmp( tracks[i_track]->psz_codec, "A_AAC/MPEG4/", strlen( "A_AAC/MPEG4/" ) ) )
934 int i_profile, i_srate, sbr = 0;
935 static const unsigned int i_sample_rates[] =
937 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
938 16000, 12000, 11025, 8000, 7350, 0, 0, 0
941 tracks[i_track]->fmt.i_codec = VLC_CODEC_MP4A;
942 /* create data for faad (MP4DecSpecificDescrTag)*/
944 if( !strcmp( &tracks[i_track]->psz_codec[12], "MAIN" ) )
948 else if( !strcmp( &tracks[i_track]->psz_codec[12], "LC" ) )
952 else if( !strcmp( &tracks[i_track]->psz_codec[12], "SSR" ) )
956 else if( !strcmp( &tracks[i_track]->psz_codec[12], "LC/SBR" ) )
966 for( i_srate = 0; i_srate < 13; i_srate++ )
968 if( i_sample_rates[i_srate] == tracks[i_track]->i_original_rate )
973 msg_Dbg( &sys.demuxer, "profile=%d srate=%d", i_profile, i_srate );
975 tracks[i_track]->fmt.i_extra = sbr ? 5 : 2;
976 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
977 assert( tracks[i_track]->fmt.p_extra );
978 ((uint8_t*)tracks[i_track]->fmt.p_extra)[0] = ((i_profile + 1) << 3) | ((i_srate&0xe) >> 1);
979 ((uint8_t*)tracks[i_track]->fmt.p_extra)[1] = ((i_srate & 0x1) << 7) | (tracks[i_track]->fmt.audio.i_channels << 3);
982 int syncExtensionType = 0x2B7;
984 for (iDSRI=0; iDSRI<13; iDSRI++)
985 if( i_sample_rates[iDSRI] == tracks[i_track]->fmt.audio.i_rate )
987 ((uint8_t*)tracks[i_track]->fmt.p_extra)[2] = (syncExtensionType >> 3) & 0xFF;
988 ((uint8_t*)tracks[i_track]->fmt.p_extra)[3] = ((syncExtensionType & 0x7) << 5) | 5;
989 ((uint8_t*)tracks[i_track]->fmt.p_extra)[4] = ((1 & 0x1) << 7) | (iDSRI << 3);
992 else if( !strcmp( tracks[i_track]->psz_codec, "A_AAC" ) )
994 tracks[i_track]->fmt.i_codec = VLC_CODEC_MP4A;
995 tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
996 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
997 assert( tracks[i_track]->fmt.p_extra );
998 memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
1000 else if( !strcmp( tracks[i_track]->psz_codec, "A_WAVPACK4" ) )
1002 tracks[i_track]->fmt.i_codec = VLC_CODEC_WAVPACK;
1003 tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
1004 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
1005 assert( tracks[i_track]->fmt.p_extra );
1006 memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
1008 else if( !strcmp( tracks[i_track]->psz_codec, "A_TTA1" ) )
1010 p_fmt->i_codec = VLC_CODEC_TTA;
1011 p_fmt->i_extra = p_tk->i_extra_data;
1012 if( p_fmt->i_extra > 0 )
1014 p_fmt->p_extra = malloc( p_tk->i_extra_data );
1015 assert( p_fmt->p_extra );
1016 memcpy( p_fmt->p_extra, p_tk->p_extra_data, p_tk->i_extra_data );
1020 p_fmt->i_extra = 30;
1021 p_fmt->p_extra = malloc( p_fmt->i_extra );
1022 assert( p_fmt->p_extra );
1023 uint8_t *p_extra = (uint8_t*)p_fmt->p_extra;
1024 memcpy( &p_extra[ 0], "TTA1", 4 );
1025 SetWLE( &p_extra[ 4], 1 );
1026 SetWLE( &p_extra[ 6], p_fmt->audio.i_channels );
1027 SetWLE( &p_extra[ 8], p_fmt->audio.i_bitspersample );
1028 SetDWLE( &p_extra[10], p_fmt->audio.i_rate );
1029 SetDWLE( &p_extra[14], 0xffffffff );
1030 memset( &p_extra[18], 0, 30 - 18 );
1033 else if( !strcmp( tracks[i_track]->psz_codec, "A_PCM/INT/BIG" ) ||
1034 !strcmp( tracks[i_track]->psz_codec, "A_PCM/INT/LIT" ) ||
1035 !strcmp( tracks[i_track]->psz_codec, "A_PCM/FLOAT/IEEE" ) )
1037 if( !strcmp( tracks[i_track]->psz_codec, "A_PCM/INT/BIG" ) )
1039 tracks[i_track]->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1043 tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
1045 tracks[i_track]->fmt.audio.i_blockalign = ( tracks[i_track]->fmt.audio.i_bitspersample + 7 ) / 8 * tracks[i_track]->fmt.audio.i_channels;
1047 /* disabled due to the potential "S_KATE" namespace issue */
1048 else if( !strcmp( tracks[i_track]->psz_codec, "S_KATE" ) )
1050 int i, i_offset = 1, i_extra, num_headers, size_so_far;
1053 tracks[i_track]->fmt.i_codec = VLC_CODEC_KATE;
1054 tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
1056 /* Recover the number of headers to expect */
1057 num_headers = tracks[i_track]->p_extra_data[0]+1;
1058 msg_Dbg( &sys.demuxer, "kate in mkv detected: %d headers in %u bytes",
1059 num_headers, tracks[i_track]->i_extra_data);
1061 /* this won't overflow the stack as is can allocate only 1020 bytes max */
1062 uint16_t pi_size[num_headers];
1064 /* Split the headers */
1066 for( i = 0; i < num_headers-1; i++ )
1069 while( i_offset < tracks[i_track]->i_extra_data )
1071 pi_size[i] += tracks[i_track]->p_extra_data[i_offset];
1072 if( tracks[i_track]->p_extra_data[i_offset++] != 0xff ) break;
1074 msg_Dbg( &sys.demuxer, "kate header %d is %d bytes", i, pi_size[i]);
1075 size_so_far += pi_size[i];
1077 pi_size[num_headers-1] = tracks[i_track]->i_extra_data - (size_so_far+i_offset);
1078 msg_Dbg( &sys.demuxer, "kate last header (%d) is %d bytes", num_headers-1, pi_size[num_headers-1]);
1080 tracks[i_track]->fmt.i_extra = 1 + num_headers * 2 + size_so_far + pi_size[num_headers-1];
1081 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
1082 assert( tracks[i_track]->fmt.p_extra );
1084 p_extra = (uint8_t *)tracks[i_track]->fmt.p_extra;
1086 *(p_extra++) = num_headers;
1088 for( i = 0; i < num_headers; i++ )
1090 *(p_extra++) = pi_size[i] >> 8;
1091 *(p_extra++) = pi_size[i] & 0xFF;
1092 memcpy( p_extra, tracks[i_track]->p_extra_data + i_offset + i_extra-1,
1095 p_extra += pi_size[i];
1096 i_extra += pi_size[i];
1099 else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/ASCII" ) )
1101 p_fmt->i_codec = VLC_CODEC_SUBT;
1102 p_fmt->subs.psz_encoding = NULL; /* Is there a place where it is stored ? */
1104 else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/UTF8" ) )
1106 tracks[i_track]->fmt.i_codec = VLC_CODEC_SUBT;
1107 tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
1109 else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/USF" ) )
1111 tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 's', 'f', ' ' );
1112 tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
1113 if( tracks[i_track]->i_extra_data )
1115 tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
1116 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
1117 assert( tracks[i_track]->fmt.p_extra );
1118 memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
1121 else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/SSA" ) ||
1122 !strcmp( tracks[i_track]->psz_codec, "S_TEXT/ASS" ) ||
1123 !strcmp( tracks[i_track]->psz_codec, "S_SSA" ) ||
1124 !strcmp( tracks[i_track]->psz_codec, "S_ASS" ))
1126 tracks[i_track]->fmt.i_codec = VLC_CODEC_SSA;
1127 tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
1128 if( tracks[i_track]->i_extra_data )
1130 tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
1131 tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
1132 assert( tracks[i_track]->fmt.p_extra );
1133 memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
1136 else if( !strcmp( tracks[i_track]->psz_codec, "S_VOBSUB" ) )
1138 tracks[i_track]->fmt.i_codec = VLC_CODEC_SPU;
1139 if( tracks[i_track]->i_extra_data )
1142 char *psz_buf = (char *)malloc( tracks[i_track]->i_extra_data + 1);
1143 if( psz_buf != NULL )
1145 memcpy( psz_buf, tracks[i_track]->p_extra_data , tracks[i_track]->i_extra_data );
1146 psz_buf[tracks[i_track]->i_extra_data] = '\0';
1148 psz_start = strstr( psz_buf, "size:" );
1150 vobsub_size_parse( psz_start,
1151 &tracks[i_track]->fmt.subs.spu.i_original_frame_width,
1152 &tracks[i_track]->fmt.subs.spu.i_original_frame_height ) == VLC_SUCCESS )
1154 msg_Dbg( &sys.demuxer, "original frame size vobsubs: %dx%d",
1155 tracks[i_track]->fmt.subs.spu.i_original_frame_width,
1156 tracks[i_track]->fmt.subs.spu.i_original_frame_height );
1160 msg_Warn( &sys.demuxer, "reading original frame size for vobsub failed" );
1163 psz_start = strstr( psz_buf, "palette:" );
1165 vobsub_palette_parse( psz_start, &tracks[i_track]->fmt.subs.spu.palette[1] ) == VLC_SUCCESS )
1167 tracks[i_track]->fmt.subs.spu.palette[0] = 0xBeef;
1168 msg_Dbg( &sys.demuxer, "vobsub palette read" );
1172 msg_Warn( &sys.demuxer, "reading original palette failed" );
1178 else if( !strcmp( tracks[i_track]->psz_codec, "B_VOBBTN" ) )
1180 tracks[i_track]->fmt.i_cat = NAV_ES;
1183 else if( !strcmp( p_tk->psz_codec, "A_REAL/14_4" ) )
1185 p_fmt->i_codec = VLC_CODEC_RA_144;
1186 p_fmt->audio.i_channels = 1;
1187 p_fmt->audio.i_rate = 8000;
1188 p_fmt->audio.i_blockalign = 0x14;
1192 msg_Err( &sys.demuxer, "unknown codec id=`%s'", tracks[i_track]->psz_codec );
1193 tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1195 if( tracks[i_track]->b_default )
1197 tracks[i_track]->fmt.i_priority = 1000;
1200 tracks[i_track]->p_es = es_out_Add( sys.demuxer.out, &tracks[i_track]->fmt );
1202 /* Turn on a subtitles track if it has been flagged as default -
1203 * but only do this if no subtitles track has already been engaged,
1204 * either by an earlier 'default track' (??) or by default
1205 * language choice behaviour.
1207 if( tracks[i_track]->b_default )
1209 es_out_Control( sys.demuxer.out,
1210 ES_OUT_SET_ES_DEFAULT,
1211 tracks[i_track]->p_es );
1214 es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_start_time );
1216 sys.i_start_pts = i_start_time;
1217 // reset the stream reading to the first cluster of the segment used
1218 es.I_O().setFilePointer( i_start_pos );
1221 ep = new EbmlParser( &es, segment, &sys.demuxer );
1226 void matroska_segment_c::UnSelect( )
1230 for( i_track = 0; i_track < tracks.size(); i_track++ )
1232 if ( tracks[i_track]->p_es != NULL )
1234 // es_format_Clean( &tracks[i_track]->fmt );
1235 es_out_Del( sys.demuxer.out, tracks[i_track]->p_es );
1236 tracks[i_track]->p_es = NULL;
1243 int matroska_segment_c::BlockGet( KaxBlock * & pp_block, KaxSimpleBlock * & pp_simpleblock, int64_t *pi_ref1, int64_t *pi_ref2, int64_t *pi_duration )
1245 pp_simpleblock = NULL;
1252 EbmlElement *el = NULL;
1256 return VLC_EGENERIC;
1258 if( pp_simpleblock != NULL || ((el = ep->Get()) == NULL && pp_block != NULL) )
1260 /* Check blocks validity to protect againts broken files */
1261 if( BlockFindTrackIndex( NULL, pp_block , pp_simpleblock ) )
1264 pp_simpleblock = NULL;
1269 /* update the index */
1270 #define idx p_indexes[i_index - 1]
1271 if( i_index > 0 && idx.i_time == -1 )
1273 if ( pp_simpleblock != NULL )
1274 idx.i_time = pp_simpleblock->GlobalTimecode() / (mtime_t)1000;
1276 idx.i_time = (*pp_block).GlobalTimecode() / (mtime_t)1000;
1277 idx.b_key = *pi_ref1 == 0 ? true : false;
1283 i_level = ep->GetLevel();
1292 msg_Warn( &sys.demuxer, "EOF" );
1293 return VLC_EGENERIC;
1296 /* Verify that we are still inside our cluster
1297 * It can happens whith broken files and when seeking
1301 if( cluster && !ep->IsTopPresent( cluster ) )
1303 msg_Warn( &sys.demuxer, "Unexpected escape from current cluster" );
1314 if( MKV_IS_ID( el, KaxCluster ) )
1316 cluster = (KaxCluster*)el;
1317 i_cluster_pos = cluster->GetElementPosition();
1319 /* add it to the index */
1321 ( i_index > 0 && p_indexes[i_index - 1].i_position < (int64_t)cluster->GetElementPosition() ) )
1323 IndexAppendCluster( cluster );
1326 // reset silent tracks
1327 for (size_t i=0; i<tracks.size(); i++)
1329 tracks[i]->b_silent = false;
1334 else if( MKV_IS_ID( el, KaxCues ) )
1336 msg_Warn( &sys.demuxer, "find KaxCues FIXME" );
1337 return VLC_EGENERIC;
1341 msg_Dbg( &sys.demuxer, "unknown (%s)", typeid( el ).name() );
1345 if( MKV_IS_ID( el, KaxClusterTimecode ) )
1347 KaxClusterTimecode &ctc = *(KaxClusterTimecode*)el;
1349 ctc.ReadData( es.I_O(), SCOPE_ALL_DATA );
1350 cluster->InitTimecode( uint64( ctc ), i_timescale );
1352 else if( MKV_IS_ID( el, KaxClusterSilentTracks ) )
1356 else if( MKV_IS_ID( el, KaxBlockGroup ) )
1358 i_block_pos = el->GetElementPosition();
1361 else if( MKV_IS_ID( el, KaxSimpleBlock ) )
1363 pp_simpleblock = (KaxSimpleBlock*)el;
1365 pp_simpleblock->ReadData( es.I_O() );
1366 pp_simpleblock->SetParent( *cluster );
1370 if( MKV_IS_ID( el, KaxBlock ) )
1372 pp_block = (KaxBlock*)el;
1374 pp_block->ReadData( es.I_O() );
1375 pp_block->SetParent( *cluster );
1379 else if( MKV_IS_ID( el, KaxBlockDuration ) )
1381 KaxBlockDuration &dur = *(KaxBlockDuration*)el;
1383 dur.ReadData( es.I_O() );
1384 *pi_duration = uint64( dur );
1386 else if( MKV_IS_ID( el, KaxReferenceBlock ) )
1388 KaxReferenceBlock &ref = *(KaxReferenceBlock*)el;
1390 ref.ReadData( es.I_O() );
1393 *pi_ref1 = int64( ref ) * cluster->GlobalTimecodeScale();
1395 else if( *pi_ref2 == 0 )
1397 *pi_ref2 = int64( ref ) * cluster->GlobalTimecodeScale();
1400 else if( MKV_IS_ID( el, KaxClusterSilentTrackNumber ) )
1402 KaxClusterSilentTrackNumber &track_num = *(KaxClusterSilentTrackNumber*)el;
1403 track_num.ReadData( es.I_O() );
1405 for (size_t i=0; i<tracks.size(); i++)
1407 if ( tracks[i]->i_number == uint32(track_num))
1409 tracks[i]->b_silent = true;
1416 msg_Err( &sys.demuxer, "invalid level = %d", i_level );
1417 return VLC_EGENERIC;