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( &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     bool bSupported = true;
 165
 166     mkv_track_t *tk;
 167
 168     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
 169
 170     tk = new mkv_track_t();
 171
 172     /* Init the track */
 173     memset( tk, 0, sizeof( mkv_track_t ) );
 174
 175     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
 176     tk->fmt.psz_language = strdup("English");
 177     tk->fmt.psz_description = NULL;
 178
 179     tk->b_default = true;
 180     tk->b_enabled = true;
 181     tk->b_silent = false;
 182     tk->i_number = tracks.size() - 1;
 183     tk->i_extra_data = 0;
 184     tk->p_extra_data = NULL;
 185     tk->psz_codec = NULL;
 186     tk->b_dts_only = false;
 187     tk->i_default_duration = 0;
 188     tk->f_timecodescale = 1.0;
 189
 190     tk->b_inited = false;
 191     tk->i_data_init = 0;
 192     tk->p_data_init = NULL;
 193
 194     tk->psz_codec_name = NULL;
 195     tk->psz_codec_settings = NULL;
 196     tk->psz_codec_info_url = NULL;
 197     tk->psz_codec_download_url = NULL;
 198
 199     tk->i_compression_type = MATROSKA_COMPRESSION_NONE;
 200     tk->p_compression_data = NULL;
 201
 202     for( size_t i = 0; i < m->ListSize(); i++ )
 203     {
 204         EbmlElement *l = (*m)[i];
 205
 206         if( MKV_IS_ID( l, KaxTrackNumber ) )
 207         {
 208             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
 209
 210             tk->i_number = uint32( tnum );
 211             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
 212         }
 213         else  if( MKV_IS_ID( l, KaxTrackUID ) )
 214         {
 215             KaxTrackUID &tuid = *(KaxTrackUID*)l;
 216
 217             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
 218         }
 219         else  if( MKV_IS_ID( l, KaxTrackType ) )
 220         {
 221             const char *psz_type;
 222             KaxTrackType &ttype = *(KaxTrackType*)l;
 223
 224             switch( uint8(ttype) )
 225             {
 226                 case track_audio:
 227                     psz_type = "audio";
 228                     tk->fmt.i_cat = AUDIO_ES;
 229                     break;
 230                 case track_video:
 231                     psz_type = "video";
 232                     tk->fmt.i_cat = VIDEO_ES;
 233                     break;
 234                 case track_subtitle:
 235                     psz_type = "subtitle";
 236                     tk->fmt.i_cat = SPU_ES;
 237                     break;
 238                 case track_buttons:
 239                     psz_type = "buttons";
 240                     tk->fmt.i_cat = SPU_ES;
 241                     break;
 242                 default:
 243                     psz_type = "unknown";
 244                     tk->fmt.i_cat = UNKNOWN_ES;
 245                     break;
 246             }
 247
 248             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
 249         }
 250         else  if( MKV_IS_ID( l, KaxTrackFlagEnabled ) ) // UNUSED
 251         {
 252             KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
 253
 254             // tk->b_enabled = uint32( fenb );
 255             msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u", uint32( fenb ) );
 256         }
 257         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
 258         {
 259             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
 260
 261             tk->b_default = uint32( fdef );
 262             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef ) );
 263         }
 264         else  if( MKV_IS_ID( l, KaxTrackFlagForced ) ) // UNUSED
 265         {
 266             KaxTrackFlagForced &ffor = *(KaxTrackFlagForced*)l;
 267
 268             msg_Dbg( &sys.demuxer, "|   |   |   + Track Forced=%u", uint32( ffor ) );
 269         }
 270         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) ) // UNUSED
 271         {
 272             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
 273
 274             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
 275         }
 276         else  if( MKV_IS_ID( l, KaxTrackMinCache ) ) // UNUSED
 277         {
 278             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
 279
 280             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
 281         }
 282         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) ) // UNUSED
 283         {
 284             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
 285
 286             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
 287         }
 288         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
 289         {
 290             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
 291
 292             tk->i_default_duration = uint64(defd);
 293             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration=%"PRId64, uint64(defd) );
 294         }
 295         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
 296         {
 297             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
 298
 299             tk->f_timecodescale = float( ttcs );
 300             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
 301         }
 302         else  if( MKV_IS_ID( l, KaxMaxBlockAdditionID ) ) // UNUSED
 303         {
 304             KaxMaxBlockAdditionID &mbl = *(KaxMaxBlockAdditionID*)l;
 305
 306             msg_Dbg( &sys.demuxer, "|   |   |   + Track Max BlockAdditionID=%d", uint32( mbl ) );
 307         }
 308         else if( MKV_IS_ID( l, KaxTrackName ) )
 309         {
 310             KaxTrackName &tname = *(KaxTrackName*)l;
 311
 312             tk->fmt.psz_description = ToUTF8( UTFstring( tname ) );
 313             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
 314         }
 315         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
 316         {
 317             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
 318
 319             free( tk->fmt.psz_language );
 320             tk->fmt.psz_language = strdup( string( lang ).c_str() );
 321             msg_Dbg( &sys.demuxer,
 322                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
 323         }
 324         else  if( MKV_IS_ID( l, KaxCodecID ) )
 325         {
 326             KaxCodecID &codecid = *(KaxCodecID*)l;
 327
 328             tk->psz_codec = strdup( string( codecid ).c_str() );
 329             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
 330         }
 331         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
 332         {
 333             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
 334
 335             tk->i_extra_data = cpriv.GetSize();
 336             if( tk->i_extra_data > 0 )
 337             {
 338                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
 339                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
 340             }
 341             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size=%"PRId64, cpriv.GetSize() );
 342         }
 343         else if( MKV_IS_ID( l, KaxCodecName ) )
 344         {
 345             KaxCodecName &cname = *(KaxCodecName*)l;
 346
 347             tk->psz_codec_name = ToUTF8( UTFstring( cname ) );
 348             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
 349         }
 350         //AttachmentLink
 351         else if( MKV_IS_ID( l, KaxCodecDecodeAll ) ) // UNUSED
 352         {
 353             KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
 354
 355             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u", uint8( cdall ) );
 356         }
 357         else if( MKV_IS_ID( l, KaxTrackOverlay ) ) // UNUSED
 358         {
 359             KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
 360
 361             msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u", uint32( tovr ) );
 362         }
 363         else if( MKV_IS_ID( l, KaxContentEncodings ) )
 364         {
 365             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
 366             MkvTree( sys.demuxer, 3, "Content Encodings" );
 367             if ( cencs->ListSize() > 1 )
 368             {
 369                 msg_Err( &sys.demuxer, "Multiple Compression method not supported" );
 370                 bSupported = false;
 371             }
 372             for( size_t j = 0; j < cencs->ListSize(); j++ )
 373             {
 374                 EbmlElement *l2 = (*cencs)[j];
 375                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
 376                 {
 377                     MkvTree( sys.demuxer, 4, "Content Encoding" );
 378                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
 379                     for( size_t k = 0; k < cenc->ListSize(); k++ )
 380                     {
 381                         EbmlElement *l3 = (*cenc)[k];
 382                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
 383                         {
 384                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
 385                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
 386                         }
 387                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
 388                         {
 389                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
 390                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
 391                         }
 392                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
 393                         {
 394                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
 395                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
 396                         }
 397                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
 398                         {
 399                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
 400                             MkvTree( sys.demuxer, 5, "Content Compression" );
 401                             for( size_t n = 0; n < compr->ListSize(); n++ )
 402                             {
 403                                 EbmlElement *l4 = (*compr)[n];
 404                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
 405                                 {
 406                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
 407                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
 408                                     tk->i_compression_type = uint32( compalg );
 409                                     if ( ( tk->i_compression_type != MATROSKA_COMPRESSION_ZLIB ) &&
 410                                          ( tk->i_compression_type != MATROSKA_COMPRESSION_HEADER ) )
 411                                     {
 412                                         msg_Err( &sys.demuxer, "Track Compression method %d not supported", tk->i_compression_type );
 413                                         bSupported = false;
 414                                     }
 415                                 }
 416                                 else if( MKV_IS_ID( l4, KaxContentCompSettings ) )
 417                                 {
 418                                     tk->p_compression_data = new KaxContentCompSettings( *(KaxContentCompSettings*)l4 );
 419                                 }
 420                                 else
 421                                 {
 422                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
 423                                 }
 424                             }
 425                         }
 426                         // ContentEncryption Unsupported
 427                         else
 428                         {
 429                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
 430                         }
 431                     }
 432                 }
 433                 else
 434                 {
 435                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
 436                 }
 437             }
 438         }
 439 //        else if( EbmlId( *l ) == KaxCodecSettings::ClassInfos.GlobalId ) DEPRECATED by matroska
 440 //        {
 441 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
 442
 443 //            tk->psz_codec_settings = ToUTF8( UTFstring( cset ) );
 444 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
 445 //        }
 446 //        else if( EbmlId( *l ) == KaxCodecInfoURL::ClassInfos.GlobalId ) DEPRECATED by matroska
 447 //        {
 448 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
 449
 450 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
 451 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
 452 //        }
 453 //        else if( EbmlId( *l ) == KaxCodecDownloadURL::ClassInfos.GlobalId ) DEPRECATED by matroska
 454 //        {
 455 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
 456
 457 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
 458 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
 459 //        }
 460         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
 461         {
 462             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
 463             unsigned int i_crop_right = 0, i_crop_left = 0, i_crop_top = 0, i_crop_bottom = 0;
 464             unsigned int i_display_unit = 0, i_display_width = 0, i_display_height = 0;
 465
 466             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
 467             tk->f_fps = 0.0;
 468
 469             tk->fmt.video.i_frame_rate_base = (unsigned int)(tk->i_default_duration / 1000);
 470             tk->fmt.video.i_frame_rate = 1000000;
 471
 472             for( unsigned int j = 0; j < tkv->ListSize(); j++ )
 473             {
 474                 EbmlElement *l = (*tkv)[j];
 475                 if( MKV_IS_ID( l, KaxVideoFlagInterlaced ) ) // UNUSED
 476                 {
 477                     KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)l;
 478
 479                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
 480                 }
 481                 else if( MKV_IS_ID( l, KaxVideoStereoMode ) ) // UNUSED
 482                 {
 483                     KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)l;
 484
 485                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
 486                 }
 487                 else if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
 488                 {
 489                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
 490
 491                     tk->fmt.video.i_width += uint16( vwidth );
 492                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
 493                 }
 494                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
 495                 {
 496                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
 497
 498                     tk->fmt.video.i_height += uint16( vheight );
 499                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
 500                 }
 501                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
 502                 {
 503                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
 504
 505                     i_display_width = uint16( vwidth );
 506                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
 507                 }
 508                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
 509                 {
 510                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
 511
 512                     i_display_height = uint16( vheight );
 513                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
 514                 }
 515                 else if( MKV_IS_ID( l, KaxVideoPixelCropBottom ) )
 516                 {
 517                     KaxVideoPixelCropBottom &cropval = *(KaxVideoPixelCropBottom*)l;
 518
 519                     i_crop_bottom = uint16( cropval );
 520                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel bottom=%d", uint16( cropval ) );
 521                 }
 522                 else if( MKV_IS_ID( l, KaxVideoPixelCropTop ) )
 523                 {
 524                     KaxVideoPixelCropTop &cropval = *(KaxVideoPixelCropTop*)l;
 525
 526                     i_crop_top = uint16( cropval );
 527                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel top=%d", uint16( cropval ) );
 528                 }
 529                 else if( MKV_IS_ID( l, KaxVideoPixelCropRight ) )
 530                 {
 531                     KaxVideoPixelCropRight &cropval = *(KaxVideoPixelCropRight*)l;
 532
 533                     i_crop_right = uint16( cropval );
 534                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel right=%d", uint16( cropval ) );
 535                 }
 536                 else if( MKV_IS_ID( l, KaxVideoPixelCropLeft ) )
 537                 {
 538                     KaxVideoPixelCropLeft &cropval = *(KaxVideoPixelCropLeft*)l;
 539
 540                     i_crop_left = uint16( cropval );
 541                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel left=%d", uint16( cropval ) );
 542                 }
 543                 else if( MKV_IS_ID( l, KaxVideoDisplayUnit ) )
 544                 {
 545                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
 546
 547                     i_display_unit = uint8( vdmode );
 548                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
 549                              uint8( vdmode ) == 0 ? "pixels" : ( uint8( vdmode ) == 1 ? "centimeters": "inches" ) );
 550                 }
 551                 else if( MKV_IS_ID( l, KaxVideoAspectRatio ) ) // UNUSED
 552                 {
 553                     KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
 554
 555                     msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
 556                 }
 557                 // ColourSpace UNUSED
 558                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
 559                 {
 560                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
 561
 562                     tk->f_fps = float( vfps );
 563                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
 564                 }
 565 //                else if( EbmlId( *l ) == KaxVideoGamma::ClassInfos.GlobalId ) //DEPRECATED by Matroska
 566 //                {
 567 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
 568
 569 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + gamma=%f", float( gamma ) );
 570 //                }
 571                 else
 572                 {
 573                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 574                 }
 575             }
 576             if( i_display_height && i_display_width )
 577             {
 578                 tk->fmt.video.i_sar_num = i_display_width  * tk->fmt.video.i_height;
 579                 tk->fmt.video.i_sar_den = i_display_height * tk->fmt.video.i_width;
 580             }
 581             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 582             {
 583                 tk->fmt.video.i_visible_width = tk->fmt.video.i_width;
 584                 tk->fmt.video.i_visible_height = tk->fmt.video.i_height;
 585                 tk->fmt.video.i_x_offset = i_crop_left;
 586                 tk->fmt.video.i_y_offset = i_crop_top;
 587                 tk->fmt.video.i_visible_width -= i_crop_left + i_crop_right;
 588                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 589             }
 590             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 591                we do not support this atm */
 592         }
 593         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 594         {
 595             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 596
 597             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 598
 599             for( unsigned int j = 0; j < tka->ListSize(); j++ )
 600             {
 601                 EbmlElement *l = (*tka)[j];
 602
 603                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 604                 {
 605                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 606
 607                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 608                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 609                 }
 610                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 611                 {
 612                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 613
 614                     tk->fmt.audio.i_rate = (int)float( afreq );
 615                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 616                 }
 617                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 618                 {
 619                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 620
 621                     tk->fmt.audio.i_channels = uint8( achan );
 622                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 623                 }
 624                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 625                 {
 626                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 627
 628                     tk->fmt.audio.i_bitspersample = uint8( abits );
 629                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 630                 }
 631                 else
 632                 {
 633                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 634                 }
 635             }
 636         }
 637         else
 638         {
 639             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 640                      typeid(*l).name() );
 641         }
 642     }
 643
 644     if ( bSupported )
 645     {
 646         tracks.push_back( tk );
 647     }
 648     else
 649     {
 650         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 651         delete tk;
 652     }
 653 }
 654
 655 /*****************************************************************************
 656  * ParseTracks:
 657  *****************************************************************************/
 658 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 659 {
 660     EbmlElement *el;
 661     int i_upper_level = 0;
 662
 663     /* Master elements */
 664     tracks->Read( es, tracks->Generic().Context, i_upper_level, el, true );
 665
 666     for( size_t i = 0; i < tracks->ListSize(); i++ )
 667     {
 668         EbmlElement *l = (*tracks)[i];
 669
 670         if( MKV_IS_ID( l, KaxTrackEntry ) )
 671         {
 672             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 673         }
 674         else
 675         {
 676             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 677         }
 678     }
 679 }
 680
 681 /*****************************************************************************
 682  * ParseInfo:
 683  *****************************************************************************/
 684 void matroska_segment_c::ParseInfo( KaxInfo *info )
 685 {
 686     EbmlElement *el;
 687     EbmlMaster  *m;
 688     int i_upper_level = 0;
 689
 690     /* Master elements */
 691     m = static_cast<EbmlMaster *>(info);
 692     m->Read( es, info->Generic().Context, i_upper_level, el, true );
 693
 694     for( size_t i = 0; i < m->ListSize(); i++ )
 695     {
 696         EbmlElement *l = (*m)[i];
 697
 698         if( MKV_IS_ID( l, KaxSegmentUID ) )
 699         {
 700             if ( p_segment_uid == NULL )
 701                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 702
 703             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 704         }
 705         else if( MKV_IS_ID( l, KaxPrevUID ) )
 706         {
 707             if ( p_prev_segment_uid == NULL )
 708                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 709
 710             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 711         }
 712         else if( MKV_IS_ID( l, KaxNextUID ) )
 713         {
 714             if ( p_next_segment_uid == NULL )
 715                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 716
 717             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 718         }
 719         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 720         {
 721             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 722
 723             i_timescale = uint64(tcs);
 724
 725             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 726                      i_timescale );
 727         }
 728         else if( MKV_IS_ID( l, KaxDuration ) )
 729         {
 730             KaxDuration &dur = *(KaxDuration*)l;
 731
 732             i_duration = mtime_t( double( dur ) );
 733
 734             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 735                      i_duration );
 736         }
 737         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 738         {
 739             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 740
 741             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 742
 743             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 744                      psz_muxing_application );
 745         }
 746         else if( MKV_IS_ID( l, KaxWritingApp ) )
 747         {
 748             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 749
 750             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 751
 752             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 753                      psz_writing_application );
 754         }
 755         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 756         {
 757             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 758
 759             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 760
 761             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 762                      psz_segment_filename );
 763         }
 764         else if( MKV_IS_ID( l, KaxTitle ) )
 765         {
 766             KaxTitle &title = *(KaxTitle*)l;
 767
 768             psz_title = ToUTF8( UTFstring( title ) );
 769
 770             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 771         }
 772         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 773         {
 774             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 775
 776             families.push_back( new KaxSegmentFamily(*uid) );
 777
 778             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 779         }
 780         else if( MKV_IS_ID( l, KaxDateUTC ) )
 781         {
 782             KaxDateUTC &date = *(KaxDateUTC*)l;
 783             time_t i_date;
 784             struct tm tmres;
 785             char   buffer[25];
 786
 787             i_date = date.GetEpochDate();
 788             if( gmtime_r( &i_date, &tmres ) &&
 789                 strftime( buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y",
 790                           &tmres ) )
 791             {
 792                 psz_date_utc = strdup( buffer );
 793                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", buffer );
 794             }
 795         }
 796         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 797         {
 798             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 799             chapter_translation_c *p_translate = new chapter_translation_c();
 800
 801             p_trans->Read( es, p_trans->Generic().Context, i_upper_level, el, true );
 802             for( size_t j = 0; j < p_trans->ListSize(); j++ )
 803             {
 804                 EbmlElement *l = (*p_trans)[j];
 805
 806                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 807                 {
 808                     p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 809                 }
 810                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 811                 {
 812                     p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 813                 }
 814                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 815                 {
 816                     p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 817                 }
 818             }
 819
 820             translations.push_back( p_translate );
 821         }
 822         else
 823         {
 824             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 825         }
 826     }
 827
 828     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 829     i_duration = mtime_t(f_dur);
 830 }
 831
 832
 833 /*****************************************************************************
 834  * ParseChapterAtom
 835  *****************************************************************************/
 836 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 837 {
 838     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 839     for( size_t i = 0; i < ca->ListSize(); i++ )
 840     {
 841         EbmlElement *l = (*ca)[i];
 842
 843         if( MKV_IS_ID( l, KaxChapterUID ) )
 844         {
 845             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 846             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %"PRId64"", chapters.i_uid );
 847         }
 848         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 849         {
 850             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 851             chapters.b_display_seekpoint = uint8( flag ) == 0;
 852
 853             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 854         }
 855         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
 856         {
 857             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
 858             chapters.i_start_time = uint64( start ) / INT64_C(1000);
 859
 860             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %"PRId64"", chapters.i_start_time );
 861         }
 862         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
 863         {
 864             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
 865             chapters.i_end_time = uint64( end ) / INT64_C(1000);
 866
 867             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %"PRId64"", chapters.i_end_time );
 868         }
 869         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
 870         {
 871             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
 872
 873             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
 874             for( size_t j = 0; j < cd->ListSize(); j++ )
 875             {
 876                 EbmlElement *l= (*cd)[j];
 877
 878                 if( MKV_IS_ID( l, KaxChapterString ) )
 879                 {
 880                     KaxChapterString &name =*(KaxChapterString*)l;
 881                     for ( int k = 0; k < i_level; k++)
 882                         chapters.psz_name += '+';
 883                     chapters.psz_name += ' ';
 884                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
 885                     chapters.psz_name += psz_tmp_utf8;
 886                     chapters.b_user_display = true;
 887
 888                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
 889                     free( psz_tmp_utf8 );
 890                 }
 891                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
 892                 {
 893                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
 894                     const char *psz = string( lang ).c_str();
 895
 896                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
 897                 }
 898                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
 899                 {
 900                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
 901                     const char *psz = string( ct ).c_str();
 902
 903                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
 904                 }
 905             }
 906         }
 907         else if( MKV_IS_ID( l, KaxChapterProcess ) )
 908         {
 909             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
 910
 911             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
 912             chapter_codec_cmds_c *p_ccodec = NULL;
 913
 914             for( size_t j = 0; j < cp->ListSize(); j++ )
 915             {
 916                 EbmlElement *k= (*cp)[j];
 917
 918                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
 919                 {
 920                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
 921                     if ( uint32(*p_codec_id) == 0 )
 922                         p_ccodec = new matroska_script_codec_c( sys );
 923                     else if ( uint32(*p_codec_id) == 1 )
 924                         p_ccodec = new dvd_chapter_codec_c( sys );
 925                     break;
 926                 }
 927             }
 928
 929             if ( p_ccodec != NULL )
 930             {
 931                 for( size_t j = 0; j < cp->ListSize(); j++ )
 932                 {
 933                     EbmlElement *k= (*cp)[j];
 934
 935                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
 936                     {
 937                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
 938                         p_ccodec->SetPrivate( *p_private );
 939                     }
 940                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
 941                     {
 942                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
 943                     }
 944                 }
 945                 chapters.codecs.push_back( p_ccodec );
 946             }
 947         }
 948         else if( MKV_IS_ID( l, KaxChapterAtom ) )
 949         {
 950             chapter_item_c *new_sub_chapter = new chapter_item_c();
 951             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
 952             new_sub_chapter->psz_parent = &chapters;
 953             chapters.sub_chapters.push_back( new_sub_chapter );
 954         }
 955     }
 956 }
 957
 958 /*****************************************************************************
 959  * ParseAttachments:
 960  *****************************************************************************/
 961 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
 962 {
 963     EbmlElement *el;
 964     int i_upper_level = 0;
 965
 966     attachments->Read( es, attachments->Generic().Context, i_upper_level, el, true );
 967
 968     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
 969
 970     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
 971     {
 972         std::string psz_mime_type  = GetChild<KaxMimeType>( *attachedFile );
 973         KaxFileName  &file_name    = GetChild<KaxFileName>( *attachedFile );
 974         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
 975
 976         attachment_c *new_attachment = new attachment_c();
 977
 978         if( new_attachment )
 979         {
 980             new_attachment->psz_file_name  = ToUTF8( UTFstring( file_name ) );
 981             new_attachment->psz_mime_type  = psz_mime_type;
 982             new_attachment->i_size         = img_data.GetSize();
 983             new_attachment->p_data         = malloc( img_data.GetSize() );
 984
 985             if( new_attachment->p_data )
 986             {
 987                 memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
 988                 sys.stored_attachments.push_back( new_attachment );
 989             }
 990             else
 991             {
 992                 delete new_attachment;
 993             }
 994         }
 995
 996         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
 997     }
 998 }
 999
1000 /*****************************************************************************
1001  * ParseChapters:
1002  *****************************************************************************/
1003 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
1004 {
1005     EbmlElement *el;
1006     int i_upper_level = 0;
1007     mtime_t i_dur;
1008
1009     /* Master elements */
1010     chapters->Read( es, chapters->Generic().Context, i_upper_level, el, true );
1011
1012     for( size_t i = 0; i < chapters->ListSize(); i++ )
1013     {
1014         EbmlElement *l = (*chapters)[i];
1015
1016         if( MKV_IS_ID( l, KaxEditionEntry ) )
1017         {
1018             chapter_edition_c *p_edition = new chapter_edition_c();
1019
1020             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1021             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1022             for( size_t j = 0; j < E->ListSize(); j++ )
1023             {
1024                 EbmlElement *l = (*E)[j];
1025
1026                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1027                 {
1028                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1029                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1030                     p_edition->sub_chapters.push_back( new_sub_chapter );
1031                 }
1032                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1033                 {
1034                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1035                 }
1036                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1037                 {
1038                     p_edition->b_ordered = var_InheritInteger( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1039                 }
1040                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1041                 {
1042                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1043                         i_default_edition = stored_editions.size();
1044                 }
1045                 else if( MKV_IS_ID( l, KaxEditionFlagHidden ) )
1046                 {
1047                     // FIXME to implement
1048                 }
1049                 else
1050                 {
1051                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1052                 }
1053             }
1054             stored_editions.push_back( p_edition );
1055         }
1056         else
1057         {
1058             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1059         }
1060     }
1061
1062     for( size_t i = 0; i < stored_editions.size(); i++ )
1063     {
1064         stored_editions[i]->RefreshChapters( );
1065     }
1066
1067     if ( stored_editions.size() != 0 && stored_editions[i_default_edition]->b_ordered )
1068     {
1069         /* update the duration of the segment according to the sum of all sub chapters */
1070         i_dur = stored_editions[i_default_edition]->Duration() / INT64_C(1000);
1071         if (i_dur > 0)
1072             i_duration = i_dur;
1073     }
1074 }
1075
1076 void matroska_segment_c::ParseCluster( )
1077 {
1078     EbmlElement *el;
1079     EbmlMaster  *m;
1080     int i_upper_level = 0;
1081
1082     /* Master elements */
1083     m = static_cast<EbmlMaster *>( cluster );
1084     m->Read( es, cluster->Generic().Context, i_upper_level, el, true );
1085
1086     for( unsigned int i = 0; i < m->ListSize(); i++ )
1087     {
1088         EbmlElement *l = (*m)[i];
1089
1090         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1091         {
1092             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1093
1094             cluster->InitTimecode( uint64( ctc ), i_timescale );
1095             break;
1096         }
1097     }
1098
1099     i_start_time = cluster->GlobalTimecode() / 1000;
1100 }
1101