git.sesse.net Git - vlc/blob - modules/demux/mkv/matroska_segment_parse.cpp

   1 /*****************************************************************************
   2  * mkv.cpp : matroska demuxer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Steve Lhomme <steve.lhomme@free.fr>
   9  *
  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.
  14  *
  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.
  19  *
  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  *****************************************************************************/
  24
  25 #include "matroska_segment.hpp"
  26
  27 #include "chapters.hpp"
  28
  29 #include "demux.hpp"
  30
  31 /*****************************************************************************
  32  * Some functions to manipulate memory
  33  *****************************************************************************/
  34 static inline char * ToUTF8( const UTFstring &u )
  35 {
  36     return strdup( u.GetUTF8().c_str() );
  37 }
  38
  39 /*****************************************************************************
  40  * ParseSeekHead:
  41  *****************************************************************************/
  42 void matroska_segment_c::ParseSeekHead( KaxSeekHead *seekhead )
  43 {
  44     EbmlParser  *ep;
  45     EbmlElement *l;
  46     bool b_seekable;
  47
  48     i_seekhead_count++;
  49
  50     stream_Control( sys.demuxer.s, STREAM_CAN_SEEK, &b_seekable );
  51     if( !b_seekable )
  52         return;
  53
  54     ep = new EbmlParser( &es, seekhead, &sys.demuxer );
  55
  56     while( ( l = ep->Get() ) != NULL )
  57     {
  58         if( MKV_IS_ID( l, KaxSeek ) )
  59         {
  60             EbmlId id = EbmlVoid::ClassInfos.GlobalId;
  61             int64_t i_pos = -1;
  62
  63             msg_Dbg( &sys.demuxer, "|   |   + Seek" );
  64             ep->Down();
  65             while( ( l = ep->Get() ) != NULL )
  66             {
  67                 if( MKV_IS_ID( l, KaxSeekID ) )
  68                 {
  69                     KaxSeekID &sid = *(KaxSeekID*)l;
  70                     sid.ReadData( es.I_O() );
  71                     id = EbmlId( sid.GetBuffer(), sid.GetSize() );
  72                 }
  73                 else if( MKV_IS_ID( l, KaxSeekPosition ) )
  74                 {
  75                     KaxSeekPosition &spos = *(KaxSeekPosition*)l;
  76                     spos.ReadData( es.I_O() );
  77                     i_pos = (int64_t)segment->GetGlobalPosition( uint64( spos ) );
  78                 }
  79                 else
  80                 {
  81                     /* Many mkvmerge files hit this case. It seems to be a broken SeekHead */
  82                     msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name()  );
  83                 }
  84             }
  85             ep->Up();
  86
  87             if( i_pos >= 0 )
  88             {
  89                 if( id == KaxCues::ClassInfos.GlobalId )
  90                 {
  91                     msg_Dbg( &sys.demuxer, "|   - cues at %"PRId64, i_pos );
  92                     LoadSeekHeadItem( KaxCues::ClassInfos, i_pos );
  93                 }
  94                 else if( id == KaxInfo::ClassInfos.GlobalId )
  95                 {
  96                     msg_Dbg( &sys.demuxer, "|   - info at %"PRId64, i_pos );
  97                     LoadSeekHeadItem( KaxInfo::ClassInfos, i_pos );
  98                 }
  99                 else if( id == KaxChapters::ClassInfos.GlobalId )
 100                 {
 101                     msg_Dbg( &sys.demuxer, "|   - chapters at %"PRId64, i_pos );
 102                     LoadSeekHeadItem( KaxChapters::ClassInfos, i_pos );
 103                 }
 104                 else if( id == KaxTags::ClassInfos.GlobalId )
 105                 {
 106                     msg_Dbg( &sys.demuxer, "|   - tags at %"PRId64, i_pos );
 107                     LoadSeekHeadItem( KaxTags::ClassInfos, i_pos );
 108                 }
 109                 else if( id == KaxSeekHead::ClassInfos.GlobalId )
 110                 {
 111                     msg_Dbg( &sys.demuxer, "|   - chained seekhead at %"PRId64, i_pos );
 112                     LoadSeekHeadItem( KaxSeekHead::ClassInfos, i_pos );
 113                 }
 114                 else if( id == KaxTracks::ClassInfos.GlobalId )
 115                 {
 116                     msg_Dbg( &sys.demuxer, "|   - tracks at %"PRId64, i_pos );
 117                     LoadSeekHeadItem( KaxTracks::ClassInfos, i_pos );
 118                 }
 119                 else if( id == KaxAttachments::ClassInfos.GlobalId )
 120                 {
 121                     msg_Dbg( &sys.demuxer, "|   - attachments at %"PRId64, i_pos );
 122                     LoadSeekHeadItem( KaxAttachments::ClassInfos, i_pos );
 123                 }
 124                 else
 125                     msg_Dbg( &sys.demuxer, "|   - unknown seekhead reference at %"PRId64, i_pos );
 126             }
 127         }
 128         else
 129             msg_Dbg( &sys.demuxer, "|   |   + ParseSeekHead Unknown (%s)", typeid(*l).name() );
 130     }
 131     delete ep;
 132 }
 133
 134
 135 /**
 136  * Helper function to print the mkv parse tree
 137  */
 138 static void MkvTree( demux_t & demuxer, int i_level, const char *psz_format, ... )
 139 {
 140     va_list args;
 141     if( i_level > 9 )
 142     {
 143         msg_Err( &demuxer, "too deep tree" );
 144         return;
 145     }
 146     va_start( args, psz_format );
 147     static const char psz_foo[] = "|   |   |   |   |   |   |   |   |   |";
 148     char *psz_foo2 = (char*)malloc( i_level * 4 + 3 + strlen( psz_format ) );
 149     strncpy( psz_foo2, psz_foo, 4 * i_level );
 150     psz_foo2[ 4 * i_level ] = '+';
 151     psz_foo2[ 4 * i_level + 1 ] = ' ';
 152     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 153     __msg_GenericVa( VLC_OBJECT(&demuxer),VLC_MSG_DBG, "mkv", psz_foo2, args );
 154     free( psz_foo2 );
 155     va_end( args );
 156 }
 157
 158
 159 /*****************************************************************************
 160  * ParseTrackEntry:
 161  *****************************************************************************/
 162 void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
 163 {
 164     size_t i, j, k, n;
 165     bool bSupported = true;
 166
 167     mkv_track_t *tk;
 168
 169     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
 170
 171     tk = new mkv_track_t();
 172
 173     /* Init the track */
 174     memset( tk, 0, sizeof( mkv_track_t ) );
 175
 176     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
 177     tk->fmt.psz_language = strdup("English");
 178     tk->fmt.psz_description = NULL;
 179
 180     tk->b_default = true;
 181     tk->b_enabled = true;
 182     tk->b_silent = false;
 183     tk->i_number = tracks.size() - 1;
 184     tk->i_extra_data = 0;
 185     tk->p_extra_data = NULL;
 186     tk->psz_codec = NULL;
 187     tk->b_dts_only = false;
 188     tk->i_default_duration = 0;
 189     tk->f_timecodescale = 1.0;
 190
 191     tk->b_inited = false;
 192     tk->i_data_init = 0;
 193     tk->p_data_init = NULL;
 194
 195     tk->psz_codec_name = NULL;
 196     tk->psz_codec_settings = NULL;
 197     tk->psz_codec_info_url = NULL;
 198     tk->psz_codec_download_url = NULL;
 199
 200     tk->i_compression_type = MATROSKA_COMPRESSION_NONE;
 201     tk->p_compression_data = NULL;
 202
 203     for( i = 0; i < m->ListSize(); i++ )
 204     {
 205         EbmlElement *l = (*m)[i];
 206
 207         if( MKV_IS_ID( l, KaxTrackNumber ) )
 208         {
 209             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
 210
 211             tk->i_number = uint32( tnum );
 212             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
 213         }
 214         else  if( MKV_IS_ID( l, KaxTrackUID ) )
 215         {
 216             KaxTrackUID &tuid = *(KaxTrackUID*)l;
 217
 218             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
 219         }
 220         else  if( MKV_IS_ID( l, KaxTrackType ) )
 221         {
 222             const char *psz_type;
 223             KaxTrackType &ttype = *(KaxTrackType*)l;
 224
 225             switch( uint8(ttype) )
 226             {
 227                 case track_audio:
 228                     psz_type = "audio";
 229                     tk->fmt.i_cat = AUDIO_ES;
 230                     break;
 231                 case track_video:
 232                     psz_type = "video";
 233                     tk->fmt.i_cat = VIDEO_ES;
 234                     break;
 235                 case track_subtitle:
 236                     psz_type = "subtitle";
 237                     tk->fmt.i_cat = SPU_ES;
 238                     break;
 239                 case track_buttons:
 240                     psz_type = "buttons";
 241                     tk->fmt.i_cat = SPU_ES;
 242                     break;
 243                 default:
 244                     psz_type = "unknown";
 245                     tk->fmt.i_cat = UNKNOWN_ES;
 246                     break;
 247             }
 248
 249             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
 250         }
 251 //        else  if( EbmlId( *l ) == KaxTrackFlagEnabled::ClassInfos.GlobalId )
 252 //        {
 253 //            KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
 254
 255 //            tk->b_enabled = uint32( fenb );
 256 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u",
 257 //                     uint32( fenb )  );
 258 //        }
 259         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
 260         {
 261             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
 262
 263             tk->b_default = uint32( fdef );
 264             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef )  );
 265         }
 266         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) )
 267         {
 268             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
 269
 270             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
 271         }
 272         else  if( MKV_IS_ID( l, KaxTrackMinCache ) )
 273         {
 274             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
 275
 276             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
 277         }
 278         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) )
 279         {
 280             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
 281
 282             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
 283         }
 284         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
 285         {
 286             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
 287
 288             tk->i_default_duration = uint64(defd);
 289             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration=%"PRId64, uint64(defd) );
 290         }
 291         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
 292         {
 293             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
 294
 295             tk->f_timecodescale = float( ttcs );
 296             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
 297         }
 298         else if( MKV_IS_ID( l, KaxTrackName ) )
 299         {
 300             KaxTrackName &tname = *(KaxTrackName*)l;
 301
 302             tk->fmt.psz_description = ToUTF8( UTFstring( tname ) );
 303             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
 304         }
 305         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
 306         {
 307             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
 308
 309             if ( tk->fmt.psz_language != NULL )
 310                 free( tk->fmt.psz_language );
 311             tk->fmt.psz_language = strdup( string( lang ).c_str() );
 312             msg_Dbg( &sys.demuxer,
 313                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
 314         }
 315         else  if( MKV_IS_ID( l, KaxCodecID ) )
 316         {
 317             KaxCodecID &codecid = *(KaxCodecID*)l;
 318
 319             tk->psz_codec = strdup( string( codecid ).c_str() );
 320             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
 321         }
 322         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
 323         {
 324             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
 325
 326             tk->i_extra_data = cpriv.GetSize();
 327             if( tk->i_extra_data > 0 )
 328             {
 329                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
 330                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
 331             }
 332             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size=%"PRId64, cpriv.GetSize() );
 333         }
 334         else if( MKV_IS_ID( l, KaxCodecName ) )
 335         {
 336             KaxCodecName &cname = *(KaxCodecName*)l;
 337
 338             tk->psz_codec_name = ToUTF8( UTFstring( cname ) );
 339             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
 340         }
 341         else if( MKV_IS_ID( l, KaxContentEncodings ) )
 342         {
 343             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
 344             MkvTree( sys.demuxer, 3, "Content Encodings" );
 345             if ( cencs->ListSize() > 1 )
 346             {
 347                 msg_Err( &sys.demuxer, "Multiple Compression method not supported" );
 348                 bSupported = false;
 349             }
 350             for( j = 0; j < cencs->ListSize(); j++ )
 351             {
 352                 EbmlElement *l2 = (*cencs)[j];
 353                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
 354                 {
 355                     MkvTree( sys.demuxer, 4, "Content Encoding" );
 356                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
 357                     for( k = 0; k < cenc->ListSize(); k++ )
 358                     {
 359                         EbmlElement *l3 = (*cenc)[k];
 360                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
 361                         {
 362                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
 363                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
 364                         }
 365                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
 366                         {
 367                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
 368                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
 369                         }
 370                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
 371                         {
 372                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
 373                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
 374                         }
 375                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
 376                         {
 377                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
 378                             MkvTree( sys.demuxer, 5, "Content Compression" );
 379                             for( n = 0; n < compr->ListSize(); n++ )
 380                             {
 381                                 EbmlElement *l4 = (*compr)[n];
 382                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
 383                                 {
 384                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
 385                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
 386                                     tk->i_compression_type = uint32( compalg );
 387                                     if ( ( tk->i_compression_type != MATROSKA_COMPRESSION_ZLIB ) &&
 388                                          ( tk->i_compression_type != MATROSKA_COMPRESSION_HEADER ) )
 389                                     {
 390                                         msg_Err( &sys.demuxer, "Track Compression method %d not supported", tk->i_compression_type );
 391                                         bSupported = false;
 392                                     }
 393                                 }
 394                                 else if( MKV_IS_ID( l4, KaxContentCompSettings ) )
 395                                 {
 396                                     tk->p_compression_data = new KaxContentCompSettings( *(KaxContentCompSettings*)l4 );
 397                                 }
 398                                 else
 399                                 {
 400                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
 401                                 }
 402                             }
 403                         }
 404                         else
 405                         {
 406                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
 407                         }
 408                     }
 409                 }
 410                 else
 411                 {
 412                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
 413                 }
 414             }
 415         }
 416 //        else if( EbmlId( *l ) == KaxCodecSettings::ClassInfos.GlobalId )
 417 //        {
 418 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
 419
 420 //            tk->psz_codec_settings = ToUTF8( UTFstring( cset ) );
 421 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
 422 //        }
 423 //        else if( EbmlId( *l ) == KaxCodecInfoURL::ClassInfos.GlobalId )
 424 //        {
 425 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
 426
 427 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
 428 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
 429 //        }
 430 //        else if( EbmlId( *l ) == KaxCodecDownloadURL::ClassInfos.GlobalId )
 431 //        {
 432 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
 433
 434 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
 435 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
 436 //        }
 437 //        else if( EbmlId( *l ) == KaxCodecDecodeAll::ClassInfos.GlobalId )
 438 //        {
 439 //            KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
 440
 441 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u <== UNUSED", uint8( cdall ) );
 442 //        }
 443 //        else if( EbmlId( *l ) == KaxTrackOverlay::ClassInfos.GlobalId )
 444 //        {
 445 //            KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
 446
 447 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u <== UNUSED", uint32( tovr ) );
 448 //        }
 449         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
 450         {
 451             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
 452             unsigned int j;
 453             unsigned int i_crop_right = 0, i_crop_left = 0, i_crop_top = 0, i_crop_bottom = 0;
 454             unsigned int i_display_unit = 0, i_display_width = 0, i_display_height = 0;
 455
 456             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
 457             tk->f_fps = 0.0;
 458
 459             tk->fmt.video.i_frame_rate_base = (unsigned int)(tk->i_default_duration / 1000);
 460             tk->fmt.video.i_frame_rate = 1000000;
 461
 462             for( j = 0; j < tkv->ListSize(); j++ )
 463             {
 464                 EbmlElement *l = (*tkv)[j];
 465 //                if( EbmlId( *el4 ) == KaxVideoFlagInterlaced::ClassInfos.GlobalId )
 466 //                {
 467 //                    KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)el4;
 468
 469 //                    msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
 470 //                }
 471 //                else if( EbmlId( *el4 ) == KaxVideoStereoMode::ClassInfos.GlobalId )
 472 //                {
 473 //                    KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)el4;
 474
 475 //                    msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
 476 //                }
 477 //                else
 478                 if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
 479                 {
 480                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
 481
 482                     tk->fmt.video.i_width += uint16( vwidth );
 483                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
 484                 }
 485                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
 486                 {
 487                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
 488
 489                     tk->fmt.video.i_height += uint16( vheight );
 490                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
 491                 }
 492                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
 493                 {
 494                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
 495
 496                     i_display_width = uint16( vwidth );
 497                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
 498                 }
 499                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
 500                 {
 501                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
 502
 503                     i_display_height = uint16( vheight );
 504                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
 505                 }
 506                 else if( MKV_IS_ID( l, KaxVideoPixelCropBottom ) )
 507                 {
 508                     KaxVideoPixelCropBottom &cropval = *(KaxVideoPixelCropBottom*)l;
 509
 510                     i_crop_bottom = uint16( cropval );
 511                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel bottom=%d", uint16( cropval ) );
 512                 }
 513                 else if( MKV_IS_ID( l, KaxVideoPixelCropTop ) )
 514                 {
 515                     KaxVideoPixelCropTop &cropval = *(KaxVideoPixelCropTop*)l;
 516
 517                     i_crop_top = uint16( cropval );
 518                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel top=%d", uint16( cropval ) );
 519                 }
 520                 else if( MKV_IS_ID( l, KaxVideoPixelCropRight ) )
 521                 {
 522                     KaxVideoPixelCropRight &cropval = *(KaxVideoPixelCropRight*)l;
 523
 524                     i_crop_right = uint16( cropval );
 525                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel right=%d", uint16( cropval ) );
 526                 }
 527                 else if( MKV_IS_ID( l, KaxVideoPixelCropLeft ) )
 528                 {
 529                     KaxVideoPixelCropLeft &cropval = *(KaxVideoPixelCropLeft*)l;
 530
 531                     i_crop_left = uint16( cropval );
 532                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel left=%d", uint16( cropval ) );
 533                 }
 534                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
 535                 {
 536                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
 537
 538                     tk->f_fps = float( vfps );
 539                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
 540                 }
 541                 else if( EbmlId( *l ) == KaxVideoDisplayUnit::ClassInfos.GlobalId )
 542                 {
 543                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
 544
 545                     i_display_unit = uint8( vdmode );
 546                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
 547                              uint8( vdmode ) == 0 ? "pixels" : ( uint8( vdmode ) == 1 ? "centimeters": "inches" ) );
 548                 }
 549 //                else if( EbmlId( *l ) == KaxVideoAspectRatio::ClassInfos.GlobalId )
 550 //                {
 551 //                    KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
 552
 553 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
 554 //                }
 555 //                else if( EbmlId( *l ) == KaxVideoGamma::ClassInfos.GlobalId )
 556 //                {
 557 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
 558
 559 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + gamma=%f", float( gamma ) );
 560 //                }
 561                 else
 562                 {
 563                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 564                 }
 565             }
 566             if( i_display_height && i_display_width )
 567                 tk->fmt.video.i_aspect = VOUT_ASPECT_FACTOR * i_display_width / i_display_height;
 568             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 569             {
 570                 tk->fmt.video.i_visible_width = tk->fmt.video.i_width;
 571                 tk->fmt.video.i_visible_height = tk->fmt.video.i_height;
 572                 tk->fmt.video.i_x_offset = i_crop_left;
 573                 tk->fmt.video.i_y_offset = i_crop_top;
 574                 tk->fmt.video.i_visible_width -= i_crop_left + i_crop_right;
 575                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 576             }
 577             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 578                we do not support this atm */
 579         }
 580         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 581         {
 582             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 583             unsigned int j;
 584
 585             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 586
 587             for( j = 0; j < tka->ListSize(); j++ )
 588             {
 589                 EbmlElement *l = (*tka)[j];
 590
 591                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 592                 {
 593                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 594
 595                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 596                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 597                 }
 598                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 599                 {
 600                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 601
 602                     tk->fmt.audio.i_rate = (int)float( afreq );
 603                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 604                 }
 605                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 606                 {
 607                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 608
 609                     tk->fmt.audio.i_channels = uint8( achan );
 610                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 611                 }
 612                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 613                 {
 614                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 615
 616                     tk->fmt.audio.i_bitspersample = uint8( abits );
 617                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 618                 }
 619                 else
 620                 {
 621                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 622                 }
 623             }
 624         }
 625         else
 626         {
 627             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 628                      typeid(*l).name() );
 629         }
 630     }
 631
 632     if ( bSupported )
 633     {
 634         tracks.push_back( tk );
 635     }
 636     else
 637     {
 638         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 639         delete tk;
 640     }
 641 }
 642
 643 /*****************************************************************************
 644  * ParseTracks:
 645  *****************************************************************************/
 646 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 647 {
 648     EbmlElement *el;
 649     unsigned int i;
 650     int i_upper_level = 0;
 651
 652     /* Master elements */
 653     tracks->Read( es, tracks->Generic().Context, i_upper_level, el, true );
 654
 655     for( i = 0; i < tracks->ListSize(); i++ )
 656     {
 657         EbmlElement *l = (*tracks)[i];
 658
 659         if( MKV_IS_ID( l, KaxTrackEntry ) )
 660         {
 661             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 662         }
 663         else
 664         {
 665             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 666         }
 667     }
 668 }
 669
 670 /*****************************************************************************
 671  * ParseInfo:
 672  *****************************************************************************/
 673 void matroska_segment_c::ParseInfo( KaxInfo *info )
 674 {
 675     EbmlElement *el;
 676     EbmlMaster  *m;
 677     size_t i, j;
 678     int i_upper_level = 0;
 679
 680     /* Master elements */
 681     m = static_cast<EbmlMaster *>(info);
 682     m->Read( es, info->Generic().Context, i_upper_level, el, true );
 683
 684     for( i = 0; i < m->ListSize(); i++ )
 685     {
 686         EbmlElement *l = (*m)[i];
 687
 688         if( MKV_IS_ID( l, KaxSegmentUID ) )
 689         {
 690             if ( p_segment_uid == NULL )
 691                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 692
 693             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 694         }
 695         else if( MKV_IS_ID( l, KaxPrevUID ) )
 696         {
 697             if ( p_prev_segment_uid == NULL )
 698                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 699
 700             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 701         }
 702         else if( MKV_IS_ID( l, KaxNextUID ) )
 703         {
 704             if ( p_next_segment_uid == NULL )
 705                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 706
 707             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 708         }
 709         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 710         {
 711             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 712
 713             i_timescale = uint64(tcs);
 714
 715             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 716                      i_timescale );
 717         }
 718         else if( MKV_IS_ID( l, KaxDuration ) )
 719         {
 720             KaxDuration &dur = *(KaxDuration*)l;
 721
 722             i_duration = mtime_t( double( dur ) );
 723
 724             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 725                      i_duration );
 726         }
 727         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 728         {
 729             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 730
 731             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 732
 733             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 734                      psz_muxing_application );
 735         }
 736         else if( MKV_IS_ID( l, KaxWritingApp ) )
 737         {
 738             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 739
 740             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 741
 742             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 743                      psz_writing_application );
 744         }
 745         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 746         {
 747             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 748
 749             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 750
 751             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 752                      psz_segment_filename );
 753         }
 754         else if( MKV_IS_ID( l, KaxTitle ) )
 755         {
 756             KaxTitle &title = *(KaxTitle*)l;
 757
 758             psz_title = ToUTF8( UTFstring( title ) );
 759
 760             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 761         }
 762         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 763         {
 764             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 765
 766             families.push_back( new KaxSegmentFamily(*uid) );
 767
 768             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 769         }
 770         else if( MKV_IS_ID( l, KaxDateUTC ) )
 771         {
 772             KaxDateUTC &date = *(KaxDateUTC*)l;
 773             time_t i_date;
 774             struct tm tmres;
 775             char   buffer[256];
 776
 777             i_date = date.GetEpochDate();
 778             memset( buffer, 0, 256 );
 779             if( gmtime_r( &i_date, &tmres ) &&
 780                 asctime_r( &tmres, buffer ) )
 781             {
 782                 buffer[strlen( buffer)-1]= '\0';
 783                 psz_date_utc = strdup( buffer );
 784                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", psz_date_utc );
 785             }
 786         }
 787         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 788         {
 789             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 790             chapter_translation_c *p_translate = new chapter_translation_c();
 791
 792             p_trans->Read( es, p_trans->Generic().Context, i_upper_level, el, true );
 793             for( j = 0; j < p_trans->ListSize(); j++ )
 794             {
 795                 EbmlElement *l = (*p_trans)[j];
 796
 797                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 798                 {
 799                     p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 800                 }
 801                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 802                 {
 803                     p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 804                 }
 805                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 806                 {
 807                     p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 808                 }
 809             }
 810
 811             translations.push_back( p_translate );
 812         }
 813         else
 814         {
 815             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 816         }
 817     }
 818
 819     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 820     i_duration = mtime_t(f_dur);
 821 }
 822
 823
 824 /*****************************************************************************
 825  * ParseChapterAtom
 826  *****************************************************************************/
 827 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 828 {
 829     size_t i, j;
 830
 831     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 832     for( i = 0; i < ca->ListSize(); i++ )
 833     {
 834         EbmlElement *l = (*ca)[i];
 835
 836         if( MKV_IS_ID( l, KaxChapterUID ) )
 837         {
 838             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 839             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %lld", chapters.i_uid );
 840         }
 841         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 842         {
 843             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 844             chapters.b_display_seekpoint = uint8( flag ) == 0;
 845
 846             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 847         }
 848         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
 849         {
 850             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
 851             chapters.i_start_time = uint64( start ) / INT64_C(1000);
 852
 853             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %lld", chapters.i_start_time );
 854         }
 855         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
 856         {
 857             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
 858             chapters.i_end_time = uint64( end ) / INT64_C(1000);
 859
 860             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %lld", chapters.i_end_time );
 861         }
 862         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
 863         {
 864             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
 865
 866             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
 867             for( j = 0; j < cd->ListSize(); j++ )
 868             {
 869                 EbmlElement *l= (*cd)[j];
 870
 871                 if( MKV_IS_ID( l, KaxChapterString ) )
 872                 {
 873                     int k;
 874
 875                     KaxChapterString &name =*(KaxChapterString*)l;
 876                     for (k = 0; k < i_level; k++)
 877                         chapters.psz_name += '+';
 878                     chapters.psz_name += ' ';
 879                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
 880                     chapters.psz_name += psz_tmp_utf8;
 881                     chapters.b_user_display = true;
 882
 883                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
 884                     free( psz_tmp_utf8 );
 885                 }
 886                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
 887                 {
 888                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
 889                     const char *psz = string( lang ).c_str();
 890
 891                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
 892                 }
 893                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
 894                 {
 895                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
 896                     const char *psz = string( ct ).c_str();
 897
 898                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
 899                 }
 900             }
 901         }
 902         else if( MKV_IS_ID( l, KaxChapterProcess ) )
 903         {
 904             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
 905
 906             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
 907             chapter_codec_cmds_c *p_ccodec = NULL;
 908
 909             for( j = 0; j < cp->ListSize(); j++ )
 910             {
 911                 EbmlElement *k= (*cp)[j];
 912
 913                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
 914                 {
 915                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
 916                     if ( uint32(*p_codec_id) == 0 )
 917                         p_ccodec = new matroska_script_codec_c( sys );
 918                     else if ( uint32(*p_codec_id) == 1 )
 919                         p_ccodec = new dvd_chapter_codec_c( sys );
 920                     break;
 921                 }
 922             }
 923
 924             if ( p_ccodec != NULL )
 925             {
 926                 for( j = 0; j < cp->ListSize(); j++ )
 927                 {
 928                     EbmlElement *k= (*cp)[j];
 929
 930                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
 931                     {
 932                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
 933                         p_ccodec->SetPrivate( *p_private );
 934                     }
 935                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
 936                     {
 937                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
 938                     }
 939                 }
 940                 chapters.codecs.push_back( p_ccodec );
 941             }
 942         }
 943         else if( MKV_IS_ID( l, KaxChapterAtom ) )
 944         {
 945             chapter_item_c *new_sub_chapter = new chapter_item_c();
 946             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
 947             new_sub_chapter->psz_parent = &chapters;
 948             chapters.sub_chapters.push_back( new_sub_chapter );
 949         }
 950     }
 951 }
 952
 953 /*****************************************************************************
 954  * ParseAttachments:
 955  *****************************************************************************/
 956 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
 957 {
 958     EbmlElement *el;
 959     int i_upper_level = 0;
 960
 961     attachments->Read( es, attachments->Generic().Context, i_upper_level, el, true );
 962
 963     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
 964
 965     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
 966     {
 967         std::string psz_mime_type  = GetChild<KaxMimeType>( *attachedFile );
 968         KaxFileName  &file_name    = GetChild<KaxFileName>( *attachedFile );
 969         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
 970
 971         attachment_c *new_attachment = new attachment_c();
 972
 973         if( new_attachment )
 974         {
 975             new_attachment->psz_file_name  = ToUTF8( UTFstring( file_name ) );
 976             new_attachment->psz_mime_type  = psz_mime_type;
 977             new_attachment->i_size         = img_data.GetSize();
 978             new_attachment->p_data         = malloc( img_data.GetSize() );
 979
 980             if( new_attachment->p_data )
 981             {
 982                 memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
 983                 sys.stored_attachments.push_back( new_attachment );
 984             }
 985             else
 986             {
 987                 delete new_attachment;
 988             }
 989         }
 990
 991         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
 992     }
 993 }
 994
 995 /*****************************************************************************
 996  * ParseChapters:
 997  *****************************************************************************/
 998 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
 999 {
1000     EbmlElement *el;
1001     size_t i;
1002     int i_upper_level = 0;
1003     mtime_t i_dur;
1004
1005     /* Master elements */
1006     chapters->Read( es, chapters->Generic().Context, i_upper_level, el, true );
1007
1008     for( i = 0; i < chapters->ListSize(); i++ )
1009     {
1010         EbmlElement *l = (*chapters)[i];
1011
1012         if( MKV_IS_ID( l, KaxEditionEntry ) )
1013         {
1014             chapter_edition_c *p_edition = new chapter_edition_c();
1015
1016             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1017             size_t j;
1018             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1019             for( j = 0; j < E->ListSize(); j++ )
1020             {
1021                 EbmlElement *l = (*E)[j];
1022
1023                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1024                 {
1025                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1026                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1027                     p_edition->sub_chapters.push_back( new_sub_chapter );
1028                 }
1029                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1030                 {
1031                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1032                 }
1033                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1034                 {
1035                     p_edition->b_ordered = config_GetInt( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1036                 }
1037                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1038                 {
1039                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1040                         i_default_edition = stored_editions.size();
1041                 }
1042                 else
1043                 {
1044                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1045                 }
1046             }
1047             stored_editions.push_back( p_edition );
1048         }
1049         else
1050         {
1051             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1052         }
1053     }
1054
1055     for( i = 0; i < stored_editions.size(); i++ )
1056     {
1057         stored_editions[i]->RefreshChapters( );
1058     }
1059
1060     if ( stored_editions.size() != 0 && stored_editions[i_default_edition]->b_ordered )
1061     {
1062         /* update the duration of the segment according to the sum of all sub chapters */
1063         i_dur = stored_editions[i_default_edition]->Duration() / INT64_C(1000);
1064         if (i_dur > 0)
1065             i_duration = i_dur;
1066     }
1067 }
1068
1069 void matroska_segment_c::ParseCluster( )
1070 {
1071     EbmlElement *el;
1072     EbmlMaster  *m;
1073     unsigned int i;
1074     int i_upper_level = 0;
1075
1076     /* Master elements */
1077     m = static_cast<EbmlMaster *>( cluster );
1078     m->Read( es, cluster->Generic().Context, i_upper_level, el, true );
1079
1080     for( i = 0; i < m->ListSize(); i++ )
1081     {
1082         EbmlElement *l = (*m)[i];
1083
1084         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1085         {
1086             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1087
1088             cluster->InitTimecode( uint64( ctc ), i_timescale );
1089             break;
1090         }
1091     }
1092
1093     i_start_time = cluster->GlobalTimecode() / 1000;
1094 }
1095
1096