matroska_segment.cpp
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:50k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * mkv.cpp : matroska demuxer
- *****************************************************************************
- * Copyright (C) 2003-2004 the VideoLAN team
- * $Id: e5101880fa115e40139e107211f377624257cc40 $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- * Steve Lhomme <steve.lhomme@free.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #include "matroska_segment.hpp"
- #include "chapters.hpp"
- #include "demux.hpp"
- /* GetFourCC helper */
- #define GetFOURCC( p ) __GetFOURCC( (uint8_t*)p )
- static vlc_fourcc_t __GetFOURCC( uint8_t *p )
- {
- return VLC_FOURCC( p[0], p[1], p[2], p[3] );
- }
- /* Destructor */
- matroska_segment_c::~matroska_segment_c()
- {
- for( size_t i_track = 0; i_track < tracks.size(); i_track++ )
- {
- delete tracks[i_track]->p_compression_data;
- es_format_Clean( &tracks[i_track]->fmt );
- free( tracks[i_track]->p_extra_data );
- free( tracks[i_track]->psz_codec );
- delete tracks[i_track];
- }
- free( psz_writing_application );
- free( psz_muxing_application );
- free( psz_segment_filename );
- free( psz_title );
- free( psz_date_utc );
- free( p_indexes );
- delete ep;
- delete segment;
- delete p_segment_uid;
- delete p_prev_segment_uid;
- delete p_next_segment_uid;
- std::vector<chapter_edition_c*>::iterator index = stored_editions.begin();
- while ( index != stored_editions.end() )
- {
- delete (*index);
- index++;
- }
- std::vector<chapter_translation_c*>::iterator indext = translations.begin();
- while ( indext != translations.end() )
- {
- delete (*indext);
- indext++;
- }
- std::vector<KaxSegmentFamily*>::iterator indexf = families.begin();
- while ( indexf != families.end() )
- {
- delete (*indexf);
- indexf++;
- }
- }
- /*****************************************************************************
- * Tools
- * * LoadCues : load the cues element and update index
- *
- * * LoadTags : load ... the tags element
- *
- * * InformationCreate : create all information, load tags if present
- *
- *****************************************************************************/
- void matroska_segment_c::LoadCues( KaxCues *cues )
- {
- EbmlParser *ep;
- EbmlElement *el;
- if( b_cues )
- {
- msg_Err( &sys.demuxer, "There can be only 1 Cues per section." );
- return;
- }
- ep = new EbmlParser( &es, cues, &sys.demuxer );
- while( ( el = ep->Get() ) != NULL )
- {
- if( MKV_IS_ID( el, KaxCuePoint ) )
- {
- #define idx p_indexes[i_index]
- idx.i_track = -1;
- idx.i_block_number= -1;
- idx.i_position = -1;
- idx.i_time = 0;
- idx.b_key = true;
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- if( MKV_IS_ID( el, KaxCueTime ) )
- {
- KaxCueTime &ctime = *(KaxCueTime*)el;
- ctime.ReadData( es.I_O() );
- idx.i_time = uint64( ctime ) * i_timescale / (mtime_t)1000;
- }
- else if( MKV_IS_ID( el, KaxCueTrackPositions ) )
- {
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- if( MKV_IS_ID( el, KaxCueTrack ) )
- {
- KaxCueTrack &ctrack = *(KaxCueTrack*)el;
- ctrack.ReadData( es.I_O() );
- idx.i_track = uint16( ctrack );
- }
- else if( MKV_IS_ID( el, KaxCueClusterPosition ) )
- {
- KaxCueClusterPosition &ccpos = *(KaxCueClusterPosition*)el;
- ccpos.ReadData( es.I_O() );
- idx.i_position = segment->GetGlobalPosition( uint64( ccpos ) );
- }
- else if( MKV_IS_ID( el, KaxCueBlockNumber ) )
- {
- KaxCueBlockNumber &cbnum = *(KaxCueBlockNumber*)el;
- cbnum.ReadData( es.I_O() );
- idx.i_block_number = uint32( cbnum );
- }
- else
- {
- msg_Dbg( &sys.demuxer, " * Unknown (%s)", typeid(*el).name() );
- }
- }
- ep->Up();
- }
- else
- {
- msg_Dbg( &sys.demuxer, " * Unknown (%s)", typeid(*el).name() );
- }
- }
- ep->Up();
- #if 0
- msg_Dbg( &sys.demuxer, " * added time=%"PRId64" pos=%"PRId64
- " track=%d bnum=%d", idx.i_time, idx.i_position,
- idx.i_track, idx.i_block_number );
- #endif
- i_index++;
- if( i_index >= i_index_max )
- {
- i_index_max += 1024;
- p_indexes = (mkv_index_t*)realloc( p_indexes, sizeof( mkv_index_t ) * i_index_max );
- }
- #undef idx
- }
- else
- {
- msg_Dbg( &sys.demuxer, " * Unknown (%s)", typeid(*el).name() );
- }
- }
- delete ep;
- b_cues = true;
- msg_Dbg( &sys.demuxer, "| - loading cues done." );
- }
- void matroska_segment_c::LoadTags( KaxTags *tags )
- {
- EbmlParser *ep;
- EbmlElement *el;
- /* Master elements */
- ep = new EbmlParser( &es, tags, &sys.demuxer );
- while( ( el = ep->Get() ) != NULL )
- {
- if( MKV_IS_ID( el, KaxTag ) )
- {
- msg_Dbg( &sys.demuxer, "+ Tag" );
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- if( MKV_IS_ID( el, KaxTagTargets ) )
- {
- msg_Dbg( &sys.demuxer, "| + Targets" );
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
- }
- ep->Up();
- }
- else if( MKV_IS_ID( el, KaxTagGeneral ) )
- {
- msg_Dbg( &sys.demuxer, "| + General" );
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
- }
- ep->Up();
- }
- else if( MKV_IS_ID( el, KaxTagGenres ) )
- {
- msg_Dbg( &sys.demuxer, "| + Genres" );
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
- }
- ep->Up();
- }
- else if( MKV_IS_ID( el, KaxTagAudioSpecific ) )
- {
- msg_Dbg( &sys.demuxer, "| + Audio Specific" );
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
- }
- ep->Up();
- }
- else if( MKV_IS_ID( el, KaxTagImageSpecific ) )
- {
- msg_Dbg( &sys.demuxer, "| + Images Specific" );
- ep->Down();
- while( ( el = ep->Get() ) != NULL )
- {
- msg_Dbg( &sys.demuxer, "| | + Unknown (%s)", typeid( *el ).name() );
- }
- ep->Up();
- }
- else if( MKV_IS_ID( el, KaxTagMultiComment ) )
- {
- msg_Dbg( &sys.demuxer, "| + Multi Comment" );
- }
- else if( MKV_IS_ID( el, KaxTagMultiCommercial ) )
- {
- msg_Dbg( &sys.demuxer, "| + Multi Commercial" );
- }
- else if( MKV_IS_ID( el, KaxTagMultiDate ) )
- {
- msg_Dbg( &sys.demuxer, "| + Multi Date" );
- }
- else if( MKV_IS_ID( el, KaxTagMultiEntity ) )
- {
- msg_Dbg( &sys.demuxer, "| + Multi Entity" );
- }
- else if( MKV_IS_ID( el, KaxTagMultiIdentifier ) )
- {
- msg_Dbg( &sys.demuxer, "| + Multi Identifier" );
- }
- else if( MKV_IS_ID( el, KaxTagMultiLegal ) )
- {
- msg_Dbg( &sys.demuxer, "| + Multi Legal" );
- }
- else if( MKV_IS_ID( el, KaxTagMultiTitle ) )
- {
- msg_Dbg( &sys.demuxer, "| + Multi Title" );
- }
- else
- {
- msg_Dbg( &sys.demuxer, "| + LoadTag Unknown (%s)", typeid( *el ).name() );
- }
- }
- ep->Up();
- }
- else
- {
- msg_Dbg( &sys.demuxer, "+ Unknown (%s)", typeid( *el ).name() );
- }
- }
- delete ep;
- msg_Dbg( &sys.demuxer, "loading tags done." );
- }
- /*****************************************************************************
- * InformationCreate:
- *****************************************************************************/
- void matroska_segment_c::InformationCreate( )
- {
- sys.meta = vlc_meta_New();
- if( psz_title )
- {
- vlc_meta_SetTitle( sys.meta, psz_title );
- }
- if( psz_date_utc )
- {
- vlc_meta_SetDate( sys.meta, psz_date_utc );
- }
- #if 0
- if( psz_segment_filename )
- {
- fprintf( stderr, "***** WARNING: Unhandled meta - Use customn" );
- }
- if( psz_muxing_application )
- {
- fprintf( stderr, "***** WARNING: Unhandled meta - Use customn" );
- }
- if( psz_writing_application )
- {
- fprintf( stderr, "***** WARNING: Unhandled meta - Use customn" );
- }
- for( size_t i_track = 0; i_track < tracks.size(); i_track++ )
- {
- // mkv_track_t *tk = tracks[i_track];
- // vlc_meta_t *mtk = vlc_meta_New();
- fprintf( stderr, "***** WARNING: Unhandled child metan");
- }
- #endif
- #if 0
- if( i_tags_position >= 0 )
- {
- bool b_seekable;
- stream_Control( sys.demuxer.s, STREAM_CAN_FASTSEEK, &b_seekable );
- if( b_seekable )
- {
- LoadTags( );
- }
- }
- #endif
- }
- /*****************************************************************************
- * Misc
- *****************************************************************************/
- void matroska_segment_c::IndexAppendCluster( KaxCluster *cluster )
- {
- #define idx p_indexes[i_index]
- idx.i_track = -1;
- idx.i_block_number= -1;
- idx.i_position = cluster->GetElementPosition();
- idx.i_time = -1;
- idx.b_key = true;
- i_index++;
- if( i_index >= i_index_max )
- {
- i_index_max += 1024;
- p_indexes = (mkv_index_t*)realloc( p_indexes, sizeof( mkv_index_t ) * i_index_max );
- }
- #undef idx
- }
- bool matroska_segment_c::PreloadFamily( const matroska_segment_c & of_segment )
- {
- if ( b_preloaded )
- return false;
- for (size_t i=0; i<families.size(); i++)
- {
- for (size_t j=0; j<of_segment.families.size(); j++)
- {
- if ( *(families[i]) == *(of_segment.families[j]) )
- return Preload( );
- }
- }
- return false;
- }
- bool matroska_segment_c::CompareSegmentUIDs( const matroska_segment_c * p_item_a, const matroska_segment_c * p_item_b )
- {
- EbmlBinary *p_tmp;
- if ( p_item_a == NULL || p_item_b == NULL )
- return false;
- p_tmp = (EbmlBinary *)p_item_a->p_segment_uid;
- if ( p_item_b->p_prev_segment_uid != NULL
- && *p_tmp == *p_item_b->p_prev_segment_uid )
- return true;
- p_tmp = (EbmlBinary *)p_item_a->p_next_segment_uid;
- if ( !p_tmp )
- return false;
- if ( p_item_b->p_segment_uid != NULL
- && *p_tmp == *p_item_b->p_segment_uid )
- return true;
- if ( p_item_b->p_prev_segment_uid != NULL
- && *p_tmp == *p_item_b->p_prev_segment_uid )
- return true;
- return false;
- }
- bool matroska_segment_c::Preload( )
- {
- if ( b_preloaded )
- return false;
- EbmlElement *el = NULL;
- ep->Reset( &sys.demuxer );
- while( ( el = ep->Get() ) != NULL )
- {
- if( MKV_IS_ID( el, KaxSeekHead ) )
- {
- /* Multiple allowed */
- /* We bail at 10, to prevent possible recursion */
- msg_Dbg( &sys.demuxer, "| + Seek head" );
- if( i_seekhead_count < 10 )
- {
- i_seekhead_position = (int64_t) es.I_O().getFilePointer();
- ParseSeekHead( static_cast<KaxSeekHead*>( el ) );
- }
- }
- else if( MKV_IS_ID( el, KaxInfo ) )
- {
- /* Multiple allowed, mandatory */
- msg_Dbg( &sys.demuxer, "| + Information" );
- if( i_info_position < 0 ) // FIXME
- ParseInfo( static_cast<KaxInfo*>( el ) );
- i_info_position = (int64_t) es.I_O().getFilePointer();
- }
- else if( MKV_IS_ID( el, KaxTracks ) )
- {
- /* Multiple allowed */
- msg_Dbg( &sys.demuxer, "| + Tracks" );
- if( i_tracks_position < 0 ) // FIXME
- ParseTracks( static_cast<KaxTracks*>( el ) );
- if ( tracks.size() == 0 )
- {
- msg_Err( &sys.demuxer, "No tracks supported" );
- return false;
- }
- i_tracks_position = (int64_t) es.I_O().getFilePointer();
- }
- else if( MKV_IS_ID( el, KaxCues ) )
- {
- msg_Dbg( &sys.demuxer, "| + Cues" );
- if( i_cues_position < 0 )
- LoadCues( static_cast<KaxCues*>( el ) );
- i_cues_position = (int64_t) es.I_O().getFilePointer();
- }
- else if( MKV_IS_ID( el, KaxCluster ) )
- {
- msg_Dbg( &sys.demuxer, "| + Cluster" );
- cluster = (KaxCluster*)el;
- i_cluster_pos = i_start_pos = cluster->GetElementPosition();
- ParseCluster( );
- ep->Down();
- /* stop pre-parsing the stream */
- break;
- }
- else if( MKV_IS_ID( el, KaxAttachments ) )
- {
- msg_Dbg( &sys.demuxer, "| + Attachments" );
- if( i_attachments_position < 0 )
- ParseAttachments( static_cast<KaxAttachments*>( el ) );
- i_attachments_position = (int64_t) es.I_O().getFilePointer();
- }
- else if( MKV_IS_ID( el, KaxChapters ) )
- {
- msg_Dbg( &sys.demuxer, "| + Chapters" );
- if( i_chapters_position < 0 )
- ParseChapters( static_cast<KaxChapters*>( el ) );
- i_chapters_position = (int64_t) es.I_O().getFilePointer();
- }
- else if( MKV_IS_ID( el, KaxTag ) )
- {
- msg_Dbg( &sys.demuxer, "| + Tags" );
- if( i_tags_position < 0) // FIXME
- ;//LoadTags( static_cast<KaxTags*>( el ) );
- i_tags_position = (int64_t) es.I_O().getFilePointer();
- }
- else
- msg_Dbg( &sys.demuxer, "| + Preload Unknown (%s)", typeid(*el).name() );
- }
- b_preloaded = true;
- return true;
- }
- /* Here we try to load elements that were found in Seek Heads, but not yet parsed */
- bool matroska_segment_c::LoadSeekHeadItem( const EbmlCallbacks & ClassInfos, int64_t i_element_position )
- {
- int64_t i_sav_position = (int64_t)es.I_O().getFilePointer();
- EbmlElement *el;
- es.I_O().setFilePointer( i_element_position, seek_beginning );
- el = es.FindNextID( ClassInfos, 0xFFFFFFFFL);
- if( el == NULL )
- {
- msg_Err( &sys.demuxer, "cannot load some cues/chapters/tags etc. (broken seekhead or file)" );
- es.I_O().setFilePointer( i_sav_position, seek_beginning );
- return false;
- }
- if( MKV_IS_ID( el, KaxSeekHead ) )
- {
- /* Multiple allowed */
- msg_Dbg( &sys.demuxer, "| + Seek head" );
- if( i_seekhead_count < 10 )
- {
- i_seekhead_position = i_element_position;
- ParseSeekHead( static_cast<KaxSeekHead*>( el ) );
- }
- }
- else if( MKV_IS_ID( el, KaxInfo ) ) // FIXME
- {
- /* Multiple allowed, mandatory */
- msg_Dbg( &sys.demuxer, "| + Information" );
- if( i_info_position < 0 )
- ParseInfo( static_cast<KaxInfo*>( el ) );
- i_info_position = i_element_position;
- }
- else if( MKV_IS_ID( el, KaxTracks ) ) // FIXME
- {
- /* Multiple allowed */
- msg_Dbg( &sys.demuxer, "| + Tracks" );
- if( i_tracks_position < 0 )
- ParseTracks( static_cast<KaxTracks*>( el ) );
- if ( tracks.size() == 0 )
- {
- msg_Err( &sys.demuxer, "No tracks supported" );
- delete el;
- es.I_O().setFilePointer( i_sav_position, seek_beginning );
- return false;
- }
- i_tracks_position = i_element_position;
- }
- else if( MKV_IS_ID( el, KaxCues ) )
- {
- msg_Dbg( &sys.demuxer, "| + Cues" );
- if( i_cues_position < 0 )
- LoadCues( static_cast<KaxCues*>( el ) );
- i_cues_position = i_element_position;
- }
- else if( MKV_IS_ID( el, KaxAttachments ) )
- {
- msg_Dbg( &sys.demuxer, "| + Attachments" );
- if( i_attachments_position < 0 )
- ParseAttachments( static_cast<KaxAttachments*>( el ) );
- i_attachments_position = i_element_position;
- }
- else if( MKV_IS_ID( el, KaxChapters ) )
- {
- msg_Dbg( &sys.demuxer, "| + Chapters" );
- if( i_chapters_position < 0 )
- ParseChapters( static_cast<KaxChapters*>( el ) );
- i_chapters_position = i_element_position;
- }
- else if( MKV_IS_ID( el, KaxTag ) ) // FIXME
- {
- msg_Dbg( &sys.demuxer, "| + Tags" );
- if( i_tags_position < 0 )
- ;//LoadTags( static_cast<KaxTags*>( el ) );
- i_tags_position = i_element_position;
- }
- else
- {
- msg_Dbg( &sys.demuxer, "| + LoadSeekHeadItem Unknown (%s)", typeid(*el).name() );
- }
- delete el;
- es.I_O().setFilePointer( i_sav_position, seek_beginning );
- return true;
- }
- int matroska_segment_c::BlockFindTrackIndex( size_t *pi_track,
- const KaxBlock *p_block, const KaxSimpleBlock *p_simpleblock )
- {
- size_t i_track;
- for( i_track = 0; i_track < tracks.size(); i_track++ )
- {
- const mkv_track_t *tk = tracks[i_track];
- if( ( p_block != NULL && tk->i_number == p_block->TrackNum() ) ||
- ( p_simpleblock != NULL && tk->i_number == p_simpleblock->TrackNum() ) )
- {
- break;
- }
- }
- if( i_track >= tracks.size() )
- return VLC_EGENERIC;
- if( pi_track )
- *pi_track = i_track;
- return VLC_SUCCESS;
- }
- bool matroska_segment_c::Select( mtime_t i_start_time )
- {
- size_t i_track;
- /* add all es */
- msg_Dbg( &sys.demuxer, "found %d es", (int)tracks.size() );
- sys.b_pci_packet_set = false;
- for( i_track = 0; i_track < tracks.size(); i_track++ )
- {
- mkv_track_t *p_tk = tracks[i_track];
- es_format_t *p_fmt = &p_tk->fmt;
- if( tracks[i_track]->fmt.i_cat == UNKNOWN_ES )
- {
- msg_Warn( &sys.demuxer, "invalid track[%d, n=%d]", (int)i_track, tracks[i_track]->i_number );
- tracks[i_track]->p_es = NULL;
- continue;
- }
- if( !strcmp( tracks[i_track]->psz_codec, "V_MS/VFW/FOURCC" ) )
- {
- if( tracks[i_track]->i_extra_data < (int)sizeof( BITMAPINFOHEADER ) )
- {
- msg_Err( &sys.demuxer, "missing/invalid BITMAPINFOHEADER" );
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
- }
- else
- {
- BITMAPINFOHEADER *p_bih = (BITMAPINFOHEADER*)tracks[i_track]->p_extra_data;
- tracks[i_track]->fmt.video.i_width = GetDWLE( &p_bih->biWidth );
- tracks[i_track]->fmt.video.i_height= GetDWLE( &p_bih->biHeight );
- tracks[i_track]->fmt.i_codec = GetFOURCC( &p_bih->biCompression );
- tracks[i_track]->fmt.i_extra = GetDWLE( &p_bih->biSize ) - sizeof( BITMAPINFOHEADER );
- if( tracks[i_track]->fmt.i_extra > 0 )
- {
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
- memcpy( tracks[i_track]->fmt.p_extra, &p_bih[1], tracks[i_track]->fmt.i_extra );
- }
- }
- p_tk->b_dts_only = true;
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "V_MPEG1" ) ||
- !strcmp( tracks[i_track]->psz_codec, "V_MPEG2" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
- }
- else if( !strncmp( tracks[i_track]->psz_codec, "V_THEORA", 8 ) )
- {
- uint8_t *p_data = tracks[i_track]->p_extra_data;
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 't', 'h', 'e', 'o' );
- if( tracks[i_track]->i_extra_data >= 4 ) {
- if( p_data[0] == 2 ) {
- int i = 1;
- int i_size1 = 0, i_size2 = 0;
- p_data++;
- /* read size of first header packet */
- while( *p_data == 0xFF &&
- i < tracks[i_track]->i_extra_data )
- {
- i_size1 += *p_data;
- p_data++;
- i++;
- }
- i_size1 += *p_data;
- p_data++;
- i++;
- msg_Dbg( &sys.demuxer, "first theora header size %d", i_size1 );
- /* read size of second header packet */
- while( *p_data == 0xFF &&
- i < tracks[i_track]->i_extra_data )
- {
- i_size2 += *p_data;
- p_data++;
- i++;
- }
- i_size2 += *p_data;
- p_data++;
- i++;
- int i_size3 = tracks[i_track]->i_extra_data - i - i_size1
- - i_size2;
- msg_Dbg( &sys.demuxer, "second theora header size %d", i_size2 );
- msg_Dbg( &sys.demuxer, "third theora header size %d", i_size3 );
- tracks[i_track]->fmt.i_extra = i_size1 + i_size2 + i_size3
- + 6;
- if( i_size1 > 0 && i_size2 > 0 && i_size3 > 0 ) {
- tracks[i_track]->fmt.p_extra =
- malloc( tracks[i_track]->fmt.i_extra );
- uint8_t *p_out = (uint8_t*)tracks[i_track]->fmt.p_extra;
- *p_out++ = (i_size1>>8) & 0xFF;
- *p_out++ = i_size1 & 0xFF;
- memcpy( p_out, p_data, i_size1 );
- p_data += i_size1;
- p_out += i_size1;
- *p_out++ = (i_size2>>8) & 0xFF;
- *p_out++ = i_size2 & 0xFF;
- memcpy( p_out, p_data, i_size2 );
- p_data += i_size2;
- p_out += i_size2;
- *p_out++ = (i_size3>>8) & 0xFF;
- *p_out++ = i_size3 & 0xFF;
- memcpy( p_out, p_data, i_size3 );
- p_data += i_size3;
- p_out += i_size3;
- }
- else
- {
- msg_Err( &sys.demuxer, "inconsistant theora extradata" );
- }
- }
- else {
- msg_Err( &sys.demuxer, "Wrong number of ogg packets with theora headers (%d)", p_data[0] + 1 );
- }
- }
- }
- else if( !strncmp( tracks[i_track]->psz_codec, "V_REAL/RV", 9 ) )
- {
- if( !strcmp( p_tk->psz_codec, "V_REAL/RV10" ) )
- p_fmt->i_codec = VLC_FOURCC( 'R', 'V', '1', '0' );
- else if( !strcmp( p_tk->psz_codec, "V_REAL/RV20" ) )
- p_fmt->i_codec = VLC_FOURCC( 'R', 'V', '2', '0' );
- else if( !strcmp( p_tk->psz_codec, "V_REAL/RV30" ) )
- p_fmt->i_codec = VLC_FOURCC( 'R', 'V', '3', '0' );
- else if( !strcmp( p_tk->psz_codec, "V_REAL/RV40" ) )
- p_fmt->i_codec = VLC_FOURCC( 'R', 'V', '4', '0' );
- if( p_tk->i_extra_data > 26 )
- {
- p_fmt->p_extra = malloc( p_tk->i_extra_data - 26 );
- if( p_fmt->p_extra )
- {
- p_fmt->i_extra = p_tk->i_extra_data - 26;
- memcpy( p_fmt->p_extra, &p_tk->p_extra_data[26], p_fmt->i_extra );
- }
- }
- p_tk->b_dts_only = true;
- }
- else if( !strncmp( tracks[i_track]->psz_codec, "V_DIRAC", 7 ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC('d', 'r', 'a', 'c' );
- }
- else if( !strncmp( tracks[i_track]->psz_codec, "V_MPEG4", 7 ) )
- {
- if( !strcmp( tracks[i_track]->psz_codec, "V_MPEG4/MS/V3" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'D', 'I', 'V', '3' );
- }
- else if( !strncmp( tracks[i_track]->psz_codec, "V_MPEG4/ISO", 11 ) )
- {
- /* A MPEG 4 codec, SP, ASP, AP or AVC */
- if( !strcmp( tracks[i_track]->psz_codec, "V_MPEG4/ISO/AVC" ) )
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'a', 'v', 'c', '1' );
- else
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
- tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
- memcpy( tracks[i_track]->fmt.p_extra,tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "V_QUICKTIME" ) )
- {
- MP4_Box_t *p_box = (MP4_Box_t*)malloc( sizeof( MP4_Box_t ) );
- stream_t *p_mp4_stream = stream_MemoryNew( VLC_OBJECT(&sys.demuxer),
- tracks[i_track]->p_extra_data,
- tracks[i_track]->i_extra_data,
- true );
- if( MP4_ReadBoxCommon( p_mp4_stream, p_box ) &&
- MP4_ReadBox_sample_vide( p_mp4_stream, p_box ) )
- {
- tracks[i_track]->fmt.i_codec = p_box->i_type;
- tracks[i_track]->fmt.video.i_width = p_box->data.p_sample_vide->i_width;
- tracks[i_track]->fmt.video.i_height = p_box->data.p_sample_vide->i_height;
- tracks[i_track]->fmt.i_extra = p_box->data.p_sample_vide->i_qt_image_description;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
- memcpy( tracks[i_track]->fmt.p_extra, p_box->data.p_sample_vide->p_qt_image_description, tracks[i_track]->fmt.i_extra );
- MP4_FreeBox_sample_vide( p_box );
- }
- else
- {
- free( p_box );
- }
- stream_Delete( p_mp4_stream );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_MS/ACM" ) )
- {
- if( tracks[i_track]->i_extra_data < (int)sizeof( WAVEFORMATEX ) )
- {
- msg_Err( &sys.demuxer, "missing/invalid WAVEFORMATEX" );
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
- }
- else
- {
- WAVEFORMATEX *p_wf = (WAVEFORMATEX*)tracks[i_track]->p_extra_data;
- wf_tag_to_fourcc( GetWLE( &p_wf->wFormatTag ), &tracks[i_track]->fmt.i_codec, NULL );
- tracks[i_track]->fmt.audio.i_channels = GetWLE( &p_wf->nChannels );
- tracks[i_track]->fmt.audio.i_rate = GetDWLE( &p_wf->nSamplesPerSec );
- tracks[i_track]->fmt.i_bitrate = GetDWLE( &p_wf->nAvgBytesPerSec ) * 8;
- tracks[i_track]->fmt.audio.i_blockalign = GetWLE( &p_wf->nBlockAlign );;
- tracks[i_track]->fmt.audio.i_bitspersample = GetWLE( &p_wf->wBitsPerSample );
- tracks[i_track]->fmt.i_extra = GetWLE( &p_wf->cbSize );
- if( tracks[i_track]->fmt.i_extra > 0 )
- {
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
- memcpy( tracks[i_track]->fmt.p_extra, &p_wf[1], tracks[i_track]->fmt.i_extra );
- }
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_MPEG/L3" ) ||
- !strcmp( tracks[i_track]->psz_codec, "A_MPEG/L2" ) ||
- !strcmp( tracks[i_track]->psz_codec, "A_MPEG/L1" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_AC3" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_EAC3" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'e', 'a', 'c', '3' );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_DTS" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'd', 't', 's', ' ' );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_MLP" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC('m', 'l', 'p', ' ' );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_TRUEHD" ) )
- {
- /* FIXME when more samples arrive */
- tracks[i_track]->fmt.i_codec = VLC_FOURCC('t', 'r', 'h', 'd' );
- p_fmt->b_packetized = false;
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_FLAC" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'f', 'l', 'a', 'c' );
- tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
- memcpy( tracks[i_track]->fmt.p_extra,tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_VORBIS" ) )
- {
- int i, i_offset = 1, i_size[3], i_extra;
- uint8_t *p_extra;
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'v', 'o', 'r', 'b' );
- /* Split the 3 headers */
- if( tracks[i_track]->p_extra_data[0] != 0x02 )
- msg_Err( &sys.demuxer, "invalid vorbis header" );
- for( i = 0; i < 2; i++ )
- {
- i_size[i] = 0;
- while( i_offset < tracks[i_track]->i_extra_data )
- {
- i_size[i] += tracks[i_track]->p_extra_data[i_offset];
- if( tracks[i_track]->p_extra_data[i_offset++] != 0xff ) break;
- }
- }
- i_size[0] = __MIN(i_size[0], tracks[i_track]->i_extra_data - i_offset);
- i_size[1] = __MIN(i_size[1], tracks[i_track]->i_extra_data -i_offset -i_size[0]);
- i_size[2] = tracks[i_track]->i_extra_data - i_offset - i_size[0] - i_size[1];
- tracks[i_track]->fmt.i_extra = 3 * 2 + i_size[0] + i_size[1] + i_size[2];
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
- p_extra = (uint8_t *)tracks[i_track]->fmt.p_extra; i_extra = 0;
- for( i = 0; i < 3; i++ )
- {
- *(p_extra++) = i_size[i] >> 8;
- *(p_extra++) = i_size[i] & 0xFF;
- memcpy( p_extra, tracks[i_track]->p_extra_data + i_offset + i_extra,
- i_size[i] );
- p_extra += i_size[i];
- i_extra += i_size[i];
- }
- }
- else if( !strncmp( tracks[i_track]->psz_codec, "A_AAC/MPEG2/", strlen( "A_AAC/MPEG2/" ) ) ||
- !strncmp( tracks[i_track]->psz_codec, "A_AAC/MPEG4/", strlen( "A_AAC/MPEG4/" ) ) )
- {
- int i_profile, i_srate, sbr = 0;
- static const unsigned int i_sample_rates[] =
- {
- 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
- 16000, 12000, 11025, 8000, 7350, 0, 0, 0
- };
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
- /* create data for faad (MP4DecSpecificDescrTag)*/
- if( !strcmp( &tracks[i_track]->psz_codec[12], "MAIN" ) )
- {
- i_profile = 0;
- }
- else if( !strcmp( &tracks[i_track]->psz_codec[12], "LC" ) )
- {
- i_profile = 1;
- }
- else if( !strcmp( &tracks[i_track]->psz_codec[12], "SSR" ) )
- {
- i_profile = 2;
- }
- else if( !strcmp( &tracks[i_track]->psz_codec[12], "LC/SBR" ) )
- {
- i_profile = 1;
- sbr = 1;
- }
- else
- {
- i_profile = 3;
- }
- for( i_srate = 0; i_srate < 13; i_srate++ )
- {
- if( i_sample_rates[i_srate] == tracks[i_track]->i_original_rate )
- {
- break;
- }
- }
- msg_Dbg( &sys.demuxer, "profile=%d srate=%d", i_profile, i_srate );
- tracks[i_track]->fmt.i_extra = sbr ? 5 : 2;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
- ((uint8_t*)tracks[i_track]->fmt.p_extra)[0] = ((i_profile + 1) << 3) | ((i_srate&0xe) >> 1);
- ((uint8_t*)tracks[i_track]->fmt.p_extra)[1] = ((i_srate & 0x1) << 7) | (tracks[i_track]->fmt.audio.i_channels << 3);
- if (sbr != 0)
- {
- int syncExtensionType = 0x2B7;
- int iDSRI;
- for (iDSRI=0; iDSRI<13; iDSRI++)
- if( i_sample_rates[iDSRI] == tracks[i_track]->fmt.audio.i_rate )
- break;
- ((uint8_t*)tracks[i_track]->fmt.p_extra)[2] = (syncExtensionType >> 3) & 0xFF;
- ((uint8_t*)tracks[i_track]->fmt.p_extra)[3] = ((syncExtensionType & 0x7) << 5) | 5;
- ((uint8_t*)tracks[i_track]->fmt.p_extra)[4] = ((1 & 0x1) << 7) | (iDSRI << 3);
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_AAC" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
- tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
- memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_WAVPACK4" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'W', 'V', 'P', 'K' );
- tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
- memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_TTA1" ) )
- {
- p_fmt->i_codec = VLC_FOURCC( 'T', 'T', 'A', '1' );
- p_fmt->i_extra = p_tk->i_extra_data;
- if( p_fmt->i_extra > 0 )
- {
- p_fmt->p_extra = malloc( p_tk->i_extra_data );
- if( !p_fmt->p_extra )
- abort();
- memcpy( p_fmt->p_extra, p_tk->p_extra_data, p_tk->i_extra_data );
- }
- else
- {
- p_fmt->i_extra = 30;
- p_fmt->p_extra = malloc( p_fmt->i_extra );
- if( !p_fmt->p_extra )
- abort();
- uint8_t *p_extra = (uint8_t*)p_fmt->p_extra;
- memcpy( &p_extra[ 0], "TTA1", 4 );
- SetWLE( &p_extra[ 4], 1 );
- SetWLE( &p_extra[ 6], p_fmt->audio.i_channels );
- SetWLE( &p_extra[ 8], p_fmt->audio.i_bitspersample );
- SetDWLE( &p_extra[10], p_fmt->audio.i_rate );
- SetDWLE( &p_extra[14], 0xffffffff );
- memset( &p_extra[18], 0, 30 - 18 );
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "A_PCM/INT/BIG" ) ||
- !strcmp( tracks[i_track]->psz_codec, "A_PCM/INT/LIT" ) ||
- !strcmp( tracks[i_track]->psz_codec, "A_PCM/FLOAT/IEEE" ) )
- {
- if( !strcmp( tracks[i_track]->psz_codec, "A_PCM/INT/BIG" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
- }
- else
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
- }
- tracks[i_track]->fmt.audio.i_blockalign = ( tracks[i_track]->fmt.audio.i_bitspersample + 7 ) / 8 * tracks[i_track]->fmt.audio.i_channels;
- }
- /* disabled due to the potential "S_KATE" namespace issue */
- else if( !strcmp( tracks[i_track]->psz_codec, "S_KATE" ) )
- {
- int i, i_offset = 1, i_extra, num_headers, size_so_far;
- uint8_t *p_extra;
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'k', 'a', 't', 'e' );
- tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
- /* Recover the number of headers to expect */
- num_headers = tracks[i_track]->p_extra_data[0]+1;
- msg_Dbg( &sys.demuxer, "kate in mkv detected: %d headers in %u bytes",
- num_headers, tracks[i_track]->i_extra_data);
- /* this won't overflow the stack as is can allocate only 1020 bytes max */
- uint16_t pi_size[num_headers];
- /* Split the headers */
- size_so_far = 0;
- for( i = 0; i < num_headers-1; i++ )
- {
- pi_size[i] = 0;
- while( i_offset < tracks[i_track]->i_extra_data )
- {
- pi_size[i] += tracks[i_track]->p_extra_data[i_offset];
- if( tracks[i_track]->p_extra_data[i_offset++] != 0xff ) break;
- }
- msg_Dbg( &sys.demuxer, "kate header %d is %d bytes", i, pi_size[i]);
- size_so_far += pi_size[i];
- }
- pi_size[num_headers-1] = tracks[i_track]->i_extra_data - (size_so_far+i_offset);
- msg_Dbg( &sys.demuxer, "kate last header (%d) is %d bytes", num_headers-1, pi_size[num_headers-1]);
- tracks[i_track]->fmt.i_extra = 1 + num_headers * 2 + size_so_far + pi_size[num_headers-1];
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->fmt.i_extra );
- p_extra = (uint8_t *)tracks[i_track]->fmt.p_extra;
- i_extra = 0;
- *(p_extra++) = num_headers;
- ++i_extra;
- for( i = 0; i < num_headers; i++ )
- {
- *(p_extra++) = pi_size[i] >> 8;
- *(p_extra++) = pi_size[i] & 0xFF;
- memcpy( p_extra, tracks[i_track]->p_extra_data + i_offset + i_extra-1,
- pi_size[i] );
- p_extra += pi_size[i];
- i_extra += pi_size[i];
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/ASCII" ) )
- {
- p_fmt->i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
- p_fmt->subs.psz_encoding = NULL; /* Is there a place where it is stored ? */
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/UTF8" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
- tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/USF" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 's', 'f', ' ' );
- tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
- if( tracks[i_track]->i_extra_data )
- {
- tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
- memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "S_TEXT/SSA" ) ||
- !strcmp( tracks[i_track]->psz_codec, "S_TEXT/ASS" ) ||
- !strcmp( tracks[i_track]->psz_codec, "S_SSA" ) ||
- !strcmp( tracks[i_track]->psz_codec, "S_ASS" ))
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 's', 's', 'a', ' ' );
- tracks[i_track]->fmt.subs.psz_encoding = strdup( "UTF-8" );
- if( tracks[i_track]->i_extra_data )
- {
- tracks[i_track]->fmt.i_extra = tracks[i_track]->i_extra_data;
- tracks[i_track]->fmt.p_extra = malloc( tracks[i_track]->i_extra_data );
- memcpy( tracks[i_track]->fmt.p_extra, tracks[i_track]->p_extra_data, tracks[i_track]->i_extra_data );
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "S_VOBSUB" ) )
- {
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 's','p','u',' ' );
- if( tracks[i_track]->i_extra_data )
- {
- char *p_start;
- char *p_buf = (char *)malloc( tracks[i_track]->i_extra_data + 1);
- memcpy( p_buf, tracks[i_track]->p_extra_data , tracks[i_track]->i_extra_data );
- p_buf[tracks[i_track]->i_extra_data] = ' ';
- p_start = strstr( p_buf, "size:" );
- if( sscanf( p_start, "size: %dx%d",
- &tracks[i_track]->fmt.subs.spu.i_original_frame_width, &tracks[i_track]->fmt.subs.spu.i_original_frame_height ) == 2 )
- {
- msg_Dbg( &sys.demuxer, "original frame size vobsubs: %dx%d", tracks[i_track]->fmt.subs.spu.i_original_frame_width, tracks[i_track]->fmt.subs.spu.i_original_frame_height );
- }
- else
- {
- msg_Warn( &sys.demuxer, "reading original frame size for vobsub failed" );
- }
- free( p_buf );
- }
- }
- else if( !strcmp( tracks[i_track]->psz_codec, "B_VOBBTN" ) )
- {
- tracks[i_track]->fmt.i_cat = NAV_ES;
- continue;
- }
- else if( !strcmp( p_tk->psz_codec, "A_REAL/14_4" ) )
- {
- p_fmt->i_codec = VLC_FOURCC( '1', '4', '_', '4');
- p_fmt->audio.i_channels = 1;
- p_fmt->audio.i_rate = 8000;
- p_fmt->audio.i_blockalign = 0x14;
- }
- else
- {
- msg_Err( &sys.demuxer, "unknown codec id=`%s'", tracks[i_track]->psz_codec );
- tracks[i_track]->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
- }
- if( tracks[i_track]->b_default )
- {
- tracks[i_track]->fmt.i_priority = 1000;
- }
- tracks[i_track]->p_es = es_out_Add( sys.demuxer.out, &tracks[i_track]->fmt );
- /* Turn on a subtitles track if it has been flagged as default -
- * but only do this if no subtitles track has already been engaged,
- * either by an earlier 'default track' (??) or by default
- * language choice behaviour.
- */
- if( tracks[i_track]->b_default )
- {
- es_out_Control( sys.demuxer.out,
- ES_OUT_SET_ES_DEFAULT,
- tracks[i_track]->p_es );
- }
- }
- es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_start_time );
- sys.i_start_pts = i_start_time;
- // reset the stream reading to the first cluster of the segment used
- es.I_O().setFilePointer( i_start_pos );
- delete ep;
- ep = new EbmlParser( &es, segment, &sys.demuxer );
- return true;
- }
- void matroska_segment_c::UnSelect( )
- {
- size_t i_track;
- for( i_track = 0; i_track < tracks.size(); i_track++ )
- {
- if ( tracks[i_track]->p_es != NULL )
- {
- // es_format_Clean( &tracks[i_track]->fmt );
- es_out_Del( sys.demuxer.out, tracks[i_track]->p_es );
- tracks[i_track]->p_es = NULL;
- }
- }
- delete ep;
- ep = NULL;
- }
- int matroska_segment_c::BlockGet( KaxBlock * & pp_block, KaxSimpleBlock * & pp_simpleblock, int64_t *pi_ref1, int64_t *pi_ref2, int64_t *pi_duration )
- {
- pp_simpleblock = NULL;
- pp_block = NULL;
- *pi_ref1 = 0;
- *pi_ref2 = 0;
- for( ;; )
- {
- EbmlElement *el = NULL;
- int i_level;
- if ( ep == NULL )
- return VLC_EGENERIC;
- if( pp_simpleblock != NULL || ((el = ep->Get()) == NULL && pp_block != NULL) )
- {
- /* Check blocks validity to protect againts broken files */
- if( BlockFindTrackIndex( NULL, pp_block , pp_simpleblock ) )
- {
- delete pp_block;
- pp_simpleblock = NULL;
- pp_block = NULL;
- continue;
- }
- /* update the index */
- #define idx p_indexes[i_index - 1]
- if( i_index > 0 && idx.i_time == -1 )
- {
- if ( pp_simpleblock != NULL )
- idx.i_time = pp_simpleblock->GlobalTimecode() / (mtime_t)1000;
- else
- idx.i_time = (*pp_block).GlobalTimecode() / (mtime_t)1000;
- idx.b_key = *pi_ref1 == 0 ? true : false;
- }
- #undef idx
- return VLC_SUCCESS;
- }
- i_level = ep->GetLevel();
- if( el == NULL )
- {
- if( i_level > 1 )
- {
- ep->Up();
- continue;
- }
- msg_Warn( &sys.demuxer, "EOF" );
- return VLC_EGENERIC;
- }
- /* Verify that we are still inside our cluster
- * It can happens whith broken files and when seeking
- * without index */
- if( i_level > 1 )
- {
- if( cluster && !ep->IsTopPresent( cluster ) )
- {
- msg_Warn( &sys.demuxer, "Unexpected escape from current cluster" );
- cluster = NULL;
- }
- if( !cluster )
- continue;
- }
- /* do parsing */
- switch ( i_level )
- {
- case 1:
- if( MKV_IS_ID( el, KaxCluster ) )
- {
- cluster = (KaxCluster*)el;
- i_cluster_pos = cluster->GetElementPosition();
- /* add it to the index */
- if( i_index == 0 ||
- ( i_index > 0 && p_indexes[i_index - 1].i_position < (int64_t)cluster->GetElementPosition() ) )
- {
- IndexAppendCluster( cluster );
- }
- // reset silent tracks
- for (size_t i=0; i<tracks.size(); i++)
- {
- tracks[i]->b_silent = false;
- }
- ep->Down();
- }
- else if( MKV_IS_ID( el, KaxCues ) )
- {
- msg_Warn( &sys.demuxer, "find KaxCues FIXME" );
- return VLC_EGENERIC;
- }
- else
- {
- msg_Dbg( &sys.demuxer, "unknown (%s)", typeid( el ).name() );
- }
- break;
- case 2:
- if( MKV_IS_ID( el, KaxClusterTimecode ) )
- {
- KaxClusterTimecode &ctc = *(KaxClusterTimecode*)el;
- ctc.ReadData( es.I_O(), SCOPE_ALL_DATA );
- cluster->InitTimecode( uint64( ctc ), i_timescale );
- }
- else if( MKV_IS_ID( el, KaxClusterSilentTracks ) )
- {
- ep->Down();
- }
- else if( MKV_IS_ID( el, KaxBlockGroup ) )
- {
- i_block_pos = el->GetElementPosition();
- ep->Down();
- }
- else if( MKV_IS_ID( el, KaxSimpleBlock ) )
- {
- pp_simpleblock = (KaxSimpleBlock*)el;
- pp_simpleblock->ReadData( es.I_O() );
- pp_simpleblock->SetParent( *cluster );
- }
- break;
- case 3:
- if( MKV_IS_ID( el, KaxBlock ) )
- {
- pp_block = (KaxBlock*)el;
- pp_block->ReadData( es.I_O() );
- pp_block->SetParent( *cluster );
- ep->Keep();
- }
- else if( MKV_IS_ID( el, KaxBlockDuration ) )
- {
- KaxBlockDuration &dur = *(KaxBlockDuration*)el;
- dur.ReadData( es.I_O() );
- *pi_duration = uint64( dur );
- }
- else if( MKV_IS_ID( el, KaxReferenceBlock ) )
- {
- KaxReferenceBlock &ref = *(KaxReferenceBlock*)el;
- ref.ReadData( es.I_O() );
- if( *pi_ref1 == 0 )
- {
- *pi_ref1 = int64( ref ) * cluster->GlobalTimecodeScale();
- }
- else if( *pi_ref2 == 0 )
- {
- *pi_ref2 = int64( ref ) * cluster->GlobalTimecodeScale();
- }
- }
- else if( MKV_IS_ID( el, KaxClusterSilentTrackNumber ) )
- {
- KaxClusterSilentTrackNumber &track_num = *(KaxClusterSilentTrackNumber*)el;
- track_num.ReadData( es.I_O() );
- // find the track
- for (size_t i=0; i<tracks.size(); i++)
- {
- if ( tracks[i]->i_number == uint32(track_num))
- {
- tracks[i]->b_silent = true;
- break;
- }
- }
- }
- break;
- default:
- msg_Err( &sys.demuxer, "invalid level = %d", i_level );
- return VLC_EGENERIC;
- }
- }
- }