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

   1 /*****************************************************************************
   2  * mkv.cpp : matroska demuxer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2010 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 #include "Ebml_parser.hpp"
  32
  33 /*****************************************************************************
  34  * Some functions to manipulate memory
  35  *****************************************************************************/
  36 static inline char * ToUTF8( const UTFstring &u )
  37 {
  38     return strdup( u.GetUTF8().c_str() );
  39 }
  40
  41 /*****************************************************************************
  42  * ParseSeekHead:
  43  *****************************************************************************/
  44 void matroska_segment_c::ParseSeekHead( KaxSeekHead *seekhead )
  45 {
  46     EbmlParser  *ep;
  47     EbmlElement *l;
  48     bool b_seekable;
  49
  50     i_seekhead_count++;
  51
  52     stream_Control( sys.demuxer.s, STREAM_CAN_SEEK, &b_seekable );
  53     if( !b_seekable )
  54         return;
  55
  56     ep = new EbmlParser( &es, seekhead, &sys.demuxer );
  57
  58     while( ( l = ep->Get() ) != NULL )
  59     {
  60         if( MKV_IS_ID( l, KaxSeek ) )
  61         {
  62             EbmlId id = EBML_ID(EbmlVoid);
  63             int64_t i_pos = -1;
  64
  65 #ifdef MKV_DEBUG
  66             msg_Dbg( &sys.demuxer, "|   |   + Seek" );
  67 #endif
  68             ep->Down();
  69             while( ( l = ep->Get() ) != NULL )
  70             {
  71                 if( MKV_IS_ID( l, KaxSeekID ) )
  72                 {
  73                     KaxSeekID &sid = *(KaxSeekID*)l;
  74                     sid.ReadData( es.I_O() );
  75                     id = EbmlId( sid.GetBuffer(), sid.GetSize() );
  76                 }
  77                 else if( MKV_IS_ID( l, KaxSeekPosition ) )
  78                 {
  79                     KaxSeekPosition &spos = *(KaxSeekPosition*)l;
  80                     spos.ReadData( es.I_O() );
  81                     i_pos = (int64_t)segment->GetGlobalPosition( uint64( spos ) );
  82                 }
  83                 else
  84                 {
  85                     /* Many mkvmerge files hit this case. It seems to be a broken SeekHead */
  86                     msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name()  );
  87                 }
  88             }
  89             ep->Up();
  90
  91             if( i_pos >= 0 )
  92             {
  93                 if( id == EBML_ID(KaxCues) )
  94                 {
  95                     msg_Dbg( &sys.demuxer, "|   - cues at %"PRId64, i_pos );
  96                     LoadSeekHeadItem( EBML_INFO(KaxCues), i_pos );
  97                 }
  98                 else if( id == EBML_ID(KaxInfo) )
  99                 {
 100                     msg_Dbg( &sys.demuxer, "|   - info at %"PRId64, i_pos );
 101                     LoadSeekHeadItem( EBML_INFO(KaxInfo), i_pos );
 102                 }
 103                 else if( id == EBML_ID(KaxChapters) )
 104                 {
 105                     msg_Dbg( &sys.demuxer, "|   - chapters at %"PRId64, i_pos );
 106                     LoadSeekHeadItem( EBML_INFO(KaxChapters), i_pos );
 107                 }
 108                 else if( id == EBML_ID(KaxTags) )
 109                 {
 110                     msg_Dbg( &sys.demuxer, "|   - tags at %"PRId64, i_pos );
 111                     LoadSeekHeadItem( EBML_INFO(KaxTags), i_pos );
 112                 }
 113                 else if( id == EBML_ID(KaxSeekHead) )
 114                 {
 115                     msg_Dbg( &sys.demuxer, "|   - chained seekhead at %"PRId64, i_pos );
 116                     LoadSeekHeadItem( EBML_INFO(KaxSeekHead), i_pos );
 117                 }
 118                 else if( id == EBML_ID(KaxTracks) )
 119                 {
 120                     msg_Dbg( &sys.demuxer, "|   - tracks at %"PRId64, i_pos );
 121                     LoadSeekHeadItem( EBML_INFO(KaxTracks), i_pos );
 122                 }
 123                 else if( id == EBML_ID(KaxAttachments) )
 124                 {
 125                     msg_Dbg( &sys.demuxer, "|   - attachments at %"PRId64, i_pos );
 126                     LoadSeekHeadItem( EBML_INFO(KaxAttachments), i_pos );
 127                 }
 128 #ifdef MKV_DEBUG
 129                 else
 130                     msg_Dbg( &sys.demuxer, "|   - unknown seekhead reference at %"PRId64, i_pos );
 131 #endif
 132             }
 133         }
 134         else
 135             msg_Dbg( &sys.demuxer, "|   |   + ParseSeekHead Unknown (%s)", typeid(*l).name() );
 136     }
 137     delete ep;
 138 }
 139
 140
 141 /**
 142  * Helper function to print the mkv parse tree
 143  */
 144 static void MkvTree( demux_t & demuxer, int i_level, const char *psz_format, ... )
 145 {
 146     va_list args;
 147     if( i_level > 9 )
 148     {
 149         msg_Err( &demuxer, "MKV tree is too deep" );
 150         return;
 151     }
 152     va_start( args, psz_format );
 153     static const char psz_foo[] = "|   |   |   |   |   |   |   |   |   |";
 154     char *psz_foo2 = (char*)malloc( i_level * 4 + 3 + strlen( psz_format ) );
 155     strncpy( psz_foo2, psz_foo, 4 * i_level );
 156     psz_foo2[ 4 * i_level ] = '+';
 157     psz_foo2[ 4 * i_level + 1 ] = ' ';
 158     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 159     msg_GenericVa( &demuxer,VLC_MSG_DBG, "mkv", psz_foo2, args );
 160     free( psz_foo2 );
 161     va_end( args );
 162 }
 163
 164
 165 /*****************************************************************************
 166  * ParseTrackEntry:
 167  *****************************************************************************/
 168 void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
 169 {
 170     bool bSupported = true;
 171
 172     /* Init the track */
 173     mkv_track_t *tk = new mkv_track_t();
 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     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
 204
 205     for( size_t i = 0; i < m->ListSize(); i++ )
 206     {
 207         EbmlElement *l = (*m)[i];
 208
 209         if( MKV_IS_ID( l, KaxTrackNumber ) )
 210         {
 211             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
 212
 213             tk->i_number = uint32( tnum );
 214             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
 215         }
 216         else  if( MKV_IS_ID( l, KaxTrackUID ) )
 217         {
 218             KaxTrackUID &tuid = *(KaxTrackUID*)l;
 219
 220             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
 221         }
 222         else  if( MKV_IS_ID( l, KaxTrackType ) )
 223         {
 224             const char *psz_type;
 225             KaxTrackType &ttype = *(KaxTrackType*)l;
 226
 227             switch( uint8(ttype) )
 228             {
 229                 case track_audio:
 230                     psz_type = "audio";
 231                     tk->fmt.i_cat = AUDIO_ES;
 232                     break;
 233                 case track_video:
 234                     psz_type = "video";
 235                     tk->fmt.i_cat = VIDEO_ES;
 236                     break;
 237                 case track_subtitle:
 238                     psz_type = "subtitle";
 239                     tk->fmt.i_cat = SPU_ES;
 240                     break;
 241                 case track_buttons:
 242                     psz_type = "buttons";
 243                     tk->fmt.i_cat = SPU_ES;
 244                     break;
 245                 default:
 246                     psz_type = "unknown";
 247                     tk->fmt.i_cat = UNKNOWN_ES;
 248                     break;
 249             }
 250
 251             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
 252         }
 253         else  if( MKV_IS_ID( l, KaxTrackFlagEnabled ) ) // UNUSED
 254         {
 255             KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
 256
 257             // tk->b_enabled = uint32( fenb );
 258             msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u", uint32( fenb ) );
 259         }
 260         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
 261         {
 262             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
 263
 264             tk->b_default = uint32( fdef );
 265             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef ) );
 266         }
 267         else  if( MKV_IS_ID( l, KaxTrackFlagForced ) ) // UNUSED
 268         {
 269             KaxTrackFlagForced &ffor = *(KaxTrackFlagForced*)l;
 270
 271             msg_Dbg( &sys.demuxer, "|   |   |   + Track Forced=%u", uint32( ffor ) );
 272         }
 273         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) ) // UNUSED
 274         {
 275             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
 276
 277             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
 278         }
 279         else  if( MKV_IS_ID( l, KaxTrackMinCache ) ) // UNUSED
 280         {
 281             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
 282
 283             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
 284         }
 285         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) ) // UNUSED
 286         {
 287             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
 288
 289             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
 290         }
 291         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
 292         {
 293             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
 294
 295             tk->i_default_duration = uint64(defd);
 296             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration=%"PRId64, uint64(defd) );
 297         }
 298         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
 299         {
 300             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
 301
 302             tk->f_timecodescale = float( ttcs );
 303             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
 304         }
 305         else  if( MKV_IS_ID( l, KaxMaxBlockAdditionID ) ) // UNUSED
 306         {
 307             KaxMaxBlockAdditionID &mbl = *(KaxMaxBlockAdditionID*)l;
 308
 309             msg_Dbg( &sys.demuxer, "|   |   |   + Track Max BlockAdditionID=%d", uint32( mbl ) );
 310         }
 311         else if( MKV_IS_ID( l, KaxTrackName ) )
 312         {
 313             KaxTrackName &tname = *(KaxTrackName*)l;
 314
 315             tk->fmt.psz_description = ToUTF8( UTFstring( tname ) );
 316             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
 317         }
 318         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
 319         {
 320             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
 321
 322             free( tk->fmt.psz_language );
 323             tk->fmt.psz_language = strdup( string( lang ).c_str() );
 324             msg_Dbg( &sys.demuxer,
 325                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
 326         }
 327         else  if( MKV_IS_ID( l, KaxCodecID ) )
 328         {
 329             KaxCodecID &codecid = *(KaxCodecID*)l;
 330
 331             tk->psz_codec = strdup( string( codecid ).c_str() );
 332             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
 333         }
 334         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
 335         {
 336             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
 337
 338             tk->i_extra_data = cpriv.GetSize();
 339             if( tk->i_extra_data > 0 )
 340             {
 341                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
 342                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
 343             }
 344             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size=%"PRId64, cpriv.GetSize() );
 345         }
 346         else if( MKV_IS_ID( l, KaxCodecName ) )
 347         {
 348             KaxCodecName &cname = *(KaxCodecName*)l;
 349
 350             tk->psz_codec_name = ToUTF8( UTFstring( cname ) );
 351             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
 352         }
 353         //AttachmentLink
 354         else if( MKV_IS_ID( l, KaxCodecDecodeAll ) ) // UNUSED
 355         {
 356             KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
 357
 358             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u", uint8( cdall ) );
 359         }
 360         else if( MKV_IS_ID( l, KaxTrackOverlay ) ) // UNUSED
 361         {
 362             KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
 363
 364             msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u", uint32( tovr ) );
 365         }
 366         else if( MKV_IS_ID( l, KaxContentEncodings ) )
 367         {
 368             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
 369             MkvTree( sys.demuxer, 3, "Content Encodings" );
 370             if ( cencs->ListSize() > 1 )
 371             {
 372                 msg_Err( &sys.demuxer, "Multiple Compression method not supported" );
 373                 bSupported = false;
 374             }
 375             for( size_t j = 0; j < cencs->ListSize(); j++ )
 376             {
 377                 EbmlElement *l2 = (*cencs)[j];
 378                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
 379                 {
 380                     MkvTree( sys.demuxer, 4, "Content Encoding" );
 381                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
 382                     for( size_t k = 0; k < cenc->ListSize(); k++ )
 383                     {
 384                         EbmlElement *l3 = (*cenc)[k];
 385                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
 386                         {
 387                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
 388                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
 389                         }
 390                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
 391                         {
 392                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
 393                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
 394                         }
 395                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
 396                         {
 397                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
 398                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
 399                         }
 400                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
 401                         {
 402                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
 403                             MkvTree( sys.demuxer, 5, "Content Compression" );
 404                             //Default compression type is 0 (Zlib)
 405                             tk->i_compression_type = MATROSKA_COMPRESSION_ZLIB;
 406                             for( size_t n = 0; n < compr->ListSize(); n++ )
 407                             {
 408                                 EbmlElement *l4 = (*compr)[n];
 409                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
 410                                 {
 411                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
 412                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
 413                                     tk->i_compression_type = uint32( compalg );
 414                                     if ( ( tk->i_compression_type != MATROSKA_COMPRESSION_ZLIB ) &&
 415                                          ( tk->i_compression_type != MATROSKA_COMPRESSION_HEADER ) )
 416                                     {
 417                                         msg_Err( &sys.demuxer, "Track Compression method %d not supported", tk->i_compression_type );
 418                                         bSupported = false;
 419                                     }
 420                                 }
 421                                 else if( MKV_IS_ID( l4, KaxContentCompSettings ) )
 422                                 {
 423                                     tk->p_compression_data = new KaxContentCompSettings( *(KaxContentCompSettings*)l4 );
 424                                 }
 425                                 else
 426                                 {
 427                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
 428                                 }
 429                             }
 430                         }
 431                         // ContentEncryption Unsupported
 432                         else
 433                         {
 434                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
 435                         }
 436                     }
 437                 }
 438                 else
 439                 {
 440                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
 441                 }
 442             }
 443         }
 444 //        else if( MKV_IS_ID( l, KaxCodecSettings) ) DEPRECATED by matroska
 445 //        {
 446 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
 447
 448 //            tk->psz_codec_settings = ToUTF8( UTFstring( cset ) );
 449 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
 450 //        }
 451 //        else if( MKV_IS_ID( l, KaxCodecInfoURL) ) DEPRECATED by matroska
 452 //        {
 453 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
 454
 455 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
 456 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
 457 //        }
 458 //        else if( MKV_IS_ID( l, KaxCodecDownloadURL) ) DEPRECATED by matroska
 459 //        {
 460 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
 461
 462 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
 463 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
 464 //        }
 465         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
 466         {
 467             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
 468             unsigned int i_crop_right = 0, i_crop_left = 0, i_crop_top = 0, i_crop_bottom = 0;
 469             unsigned int i_display_unit = 0, i_display_width = 0, i_display_height = 0;
 470
 471             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
 472             tk->f_fps = 0.0;
 473
 474             tk->fmt.video.i_frame_rate_base = (unsigned int)(tk->i_default_duration / 1000);
 475             tk->fmt.video.i_frame_rate = 1000000;
 476
 477             for( unsigned int j = 0; j < tkv->ListSize(); j++ )
 478             {
 479                 EbmlElement *l = (*tkv)[j];
 480                 if( MKV_IS_ID( l, KaxVideoFlagInterlaced ) ) // UNUSED
 481                 {
 482                     KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)l;
 483
 484                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
 485                 }
 486                 else if( MKV_IS_ID( l, KaxVideoStereoMode ) ) // UNUSED
 487                 {
 488                     KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)l;
 489
 490                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
 491                 }
 492                 else if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
 493                 {
 494                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
 495
 496                     tk->fmt.video.i_width += uint16( vwidth );
 497                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
 498                 }
 499                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
 500                 {
 501                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
 502
 503                     tk->fmt.video.i_height += uint16( vheight );
 504                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
 505                 }
 506                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
 507                 {
 508                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
 509
 510                     i_display_width = uint16( vwidth );
 511                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
 512                 }
 513                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
 514                 {
 515                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
 516
 517                     i_display_height = uint16( vheight );
 518                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
 519                 }
 520                 else if( MKV_IS_ID( l, KaxVideoPixelCropBottom ) )
 521                 {
 522                     KaxVideoPixelCropBottom &cropval = *(KaxVideoPixelCropBottom*)l;
 523
 524                     i_crop_bottom = uint16( cropval );
 525                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel bottom=%d", uint16( cropval ) );
 526                 }
 527                 else if( MKV_IS_ID( l, KaxVideoPixelCropTop ) )
 528                 {
 529                     KaxVideoPixelCropTop &cropval = *(KaxVideoPixelCropTop*)l;
 530
 531                     i_crop_top = uint16( cropval );
 532                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel top=%d", uint16( cropval ) );
 533                 }
 534                 else if( MKV_IS_ID( l, KaxVideoPixelCropRight ) )
 535                 {
 536                     KaxVideoPixelCropRight &cropval = *(KaxVideoPixelCropRight*)l;
 537
 538                     i_crop_right = uint16( cropval );
 539                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel right=%d", uint16( cropval ) );
 540                 }
 541                 else if( MKV_IS_ID( l, KaxVideoPixelCropLeft ) )
 542                 {
 543                     KaxVideoPixelCropLeft &cropval = *(KaxVideoPixelCropLeft*)l;
 544
 545                     i_crop_left = uint16( cropval );
 546                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel left=%d", uint16( cropval ) );
 547                 }
 548                 else if( MKV_IS_ID( l, KaxVideoDisplayUnit ) )
 549                 {
 550                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
 551
 552                     i_display_unit = uint8( vdmode );
 553                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
 554                              i_display_unit == 0 ? "pixels" : ( i_display_unit == 1 ? "centimeters": "inches" ) );
 555                 }
 556                 else if( MKV_IS_ID( l, KaxVideoAspectRatio ) ) // UNUSED
 557                 {
 558                     KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
 559
 560                     msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
 561                 }
 562                 // ColourSpace UNUSED
 563                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
 564                 {
 565                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
 566
 567                     tk->f_fps = float( vfps );
 568                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
 569                 }
 570 //                else if( MKV_IS_ID( l, KaxVideoGamma) ) //DEPRECATED by Matroska
 571 //                {
 572 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
 573
 574 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + gamma=%f", float( gamma ) );
 575 //                }
 576                 else
 577                 {
 578                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 579                 }
 580             }
 581             if( i_display_height && i_display_width )
 582             {
 583                 tk->fmt.video.i_sar_num = i_display_width  * tk->fmt.video.i_height;
 584                 tk->fmt.video.i_sar_den = i_display_height * tk->fmt.video.i_width;
 585             }
 586             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 587             {
 588                 tk->fmt.video.i_visible_width   = tk->fmt.video.i_width;
 589                 tk->fmt.video.i_visible_height  = tk->fmt.video.i_height;
 590                 tk->fmt.video.i_x_offset        = i_crop_left;
 591                 tk->fmt.video.i_y_offset        = i_crop_top;
 592                 tk->fmt.video.i_visible_width  -= i_crop_left + i_crop_right;
 593                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 594             }
 595             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 596                we do not support this atm */
 597         }
 598         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 599         {
 600             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 601
 602             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 603
 604             for( unsigned int j = 0; j < tka->ListSize(); j++ )
 605             {
 606                 EbmlElement *l = (*tka)[j];
 607
 608                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 609                 {
 610                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 611
 612                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 613                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 614                 }
 615                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 616                 {
 617                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 618
 619                     tk->fmt.audio.i_rate = (int)float( afreq );
 620                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 621                 }
 622                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 623                 {
 624                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 625
 626                     tk->fmt.audio.i_channels = uint8( achan );
 627                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 628                 }
 629                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 630                 {
 631                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 632
 633                     tk->fmt.audio.i_bitspersample = uint8( abits );
 634                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 635                 }
 636                 else
 637                 {
 638                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 639                 }
 640             }
 641         }
 642         else
 643         {
 644             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 645                      typeid(*l).name() );
 646         }
 647     }
 648
 649     if ( bSupported )
 650     {
 651         tracks.push_back( tk );
 652     }
 653     else
 654     {
 655         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 656         delete tk;
 657     }
 658 }
 659
 660 /*****************************************************************************
 661  * ParseTracks:
 662  *****************************************************************************/
 663 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 664 {
 665     EbmlElement *el;
 666     int i_upper_level = 0;
 667
 668     /* Master elements */
 669     tracks->Read( es, EBML_CONTEXT(tracks), i_upper_level, el, true );
 670
 671     for( size_t i = 0; i < tracks->ListSize(); i++ )
 672     {
 673         EbmlElement *l = (*tracks)[i];
 674
 675         if( MKV_IS_ID( l, KaxTrackEntry ) )
 676         {
 677             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 678         }
 679         else
 680         {
 681             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 682         }
 683     }
 684 }
 685
 686 /*****************************************************************************
 687  * ParseInfo:
 688  *****************************************************************************/
 689 void matroska_segment_c::ParseInfo( KaxInfo *info )
 690 {
 691     EbmlElement *el;
 692     EbmlMaster  *m;
 693     int i_upper_level = 0;
 694
 695     /* Master elements */
 696     m = static_cast<EbmlMaster *>(info);
 697     m->Read( es, EBML_CONTEXT(info), i_upper_level, el, true );
 698
 699     for( size_t i = 0; i < m->ListSize(); i++ )
 700     {
 701         EbmlElement *l = (*m)[i];
 702
 703         if( MKV_IS_ID( l, KaxSegmentUID ) )
 704         {
 705             if ( p_segment_uid == NULL )
 706                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 707
 708             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 709         }
 710         else if( MKV_IS_ID( l, KaxPrevUID ) )
 711         {
 712             if ( p_prev_segment_uid == NULL )
 713                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 714
 715             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 716         }
 717         else if( MKV_IS_ID( l, KaxNextUID ) )
 718         {
 719             if ( p_next_segment_uid == NULL )
 720                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 721
 722             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 723         }
 724         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 725         {
 726             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 727
 728             i_timescale = uint64(tcs);
 729
 730             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 731                      i_timescale );
 732         }
 733         else if( MKV_IS_ID( l, KaxDuration ) )
 734         {
 735             KaxDuration &dur = *(KaxDuration*)l;
 736
 737             i_duration = mtime_t( double( dur ) );
 738
 739             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 740                      i_duration );
 741         }
 742         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 743         {
 744             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 745
 746             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 747
 748             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 749                      psz_muxing_application );
 750         }
 751         else if( MKV_IS_ID( l, KaxWritingApp ) )
 752         {
 753             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 754
 755             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 756
 757             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 758                      psz_writing_application );
 759         }
 760         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 761         {
 762             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 763
 764             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 765
 766             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 767                      psz_segment_filename );
 768         }
 769         else if( MKV_IS_ID( l, KaxTitle ) )
 770         {
 771             KaxTitle &title = *(KaxTitle*)l;
 772
 773             psz_title = ToUTF8( UTFstring( title ) );
 774
 775             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 776         }
 777         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 778         {
 779             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 780
 781             families.push_back( new KaxSegmentFamily(*uid) );
 782
 783             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 784         }
 785         else if( MKV_IS_ID( l, KaxDateUTC ) )
 786         {
 787             KaxDateUTC &date = *(KaxDateUTC*)l;
 788             time_t i_date;
 789             struct tm tmres;
 790             char   buffer[25];
 791
 792             i_date = date.GetEpochDate();
 793             if( gmtime_r( &i_date, &tmres ) &&
 794                 strftime( buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y",
 795                           &tmres ) )
 796             {
 797                 psz_date_utc = strdup( buffer );
 798                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", buffer );
 799             }
 800         }
 801         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 802         {
 803             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 804             chapter_translation_c *p_translate = new chapter_translation_c();
 805
 806             p_trans->Read( es, EBML_CONTEXT(p_trans), i_upper_level, el, true );
 807             for( size_t j = 0; j < p_trans->ListSize(); j++ )
 808             {
 809                 EbmlElement *l = (*p_trans)[j];
 810
 811                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 812                 {
 813                     p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 814                 }
 815                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 816                 {
 817                     p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 818                 }
 819                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 820                 {
 821                     p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 822                 }
 823             }
 824
 825             translations.push_back( p_translate );
 826         }
 827         else
 828         {
 829             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 830         }
 831     }
 832
 833     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 834     i_duration = mtime_t(f_dur);
 835 }
 836
 837
 838 /*****************************************************************************
 839  * ParseChapterAtom
 840  *****************************************************************************/
 841 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 842 {
 843     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 844     for( size_t i = 0; i < ca->ListSize(); i++ )
 845     {
 846         EbmlElement *l = (*ca)[i];
 847
 848         if( MKV_IS_ID( l, KaxChapterUID ) )
 849         {
 850             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 851             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %"PRIu64"", chapters.i_uid );
 852         }
 853         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 854         {
 855             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 856             chapters.b_display_seekpoint = uint8( flag ) == 0;
 857
 858             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 859         }
 860         else if( MKV_IS_ID( l, KaxChapterSegmentUID ) )
 861         {
 862             chapters.p_segment_uid = new KaxChapterSegmentUID( *static_cast<KaxChapterSegmentUID*>(l) );
 863             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentUID= %u", *(uint32*)chapters.p_segment_uid->GetBuffer() );
 864         }
 865         else if( MKV_IS_ID( l, KaxChapterSegmentEditionUID ) )
 866         {
 867             chapters.p_segment_edition_uid = new KaxChapterSegmentEditionUID( *static_cast<KaxChapterSegmentEditionUID*>(l) );
 868             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentEditionUID= %u",
 869 #if LIBMATROSKA_VERSION < 0x010300
 870             *(uint32*)chapters.p_segment_edition_uid->GetBuffer()
 871 #else
 872             *(uint32*)chapters.p_segment_edition_uid
 873 #endif
 874             );
 875         }
 876         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
 877         {
 878             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
 879             chapters.i_start_time = uint64( start ) / INT64_C(1000);
 880
 881             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %"PRId64"", chapters.i_start_time );
 882         }
 883         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
 884         {
 885             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
 886             chapters.i_end_time = uint64( end ) / INT64_C(1000);
 887
 888             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %"PRId64"", chapters.i_end_time );
 889         }
 890         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
 891         {
 892             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
 893
 894             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
 895             for( size_t j = 0; j < cd->ListSize(); j++ )
 896             {
 897                 EbmlElement *l= (*cd)[j];
 898
 899                 if( MKV_IS_ID( l, KaxChapterString ) )
 900                 {
 901                     KaxChapterString &name =*(KaxChapterString*)l;
 902                     for ( int k = 0; k < i_level; k++)
 903                         chapters.psz_name += '+';
 904                     chapters.psz_name += ' ';
 905                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
 906                     chapters.psz_name += psz_tmp_utf8;
 907                     chapters.b_user_display = true;
 908
 909                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
 910                     free( psz_tmp_utf8 );
 911                 }
 912                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
 913                 {
 914                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
 915                     const char *psz = string( lang ).c_str();
 916
 917                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
 918                 }
 919                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
 920                 {
 921                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
 922                     const char *psz = string( ct ).c_str();
 923
 924                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
 925                 }
 926             }
 927         }
 928         else if( MKV_IS_ID( l, KaxChapterProcess ) )
 929         {
 930             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
 931
 932             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
 933             chapter_codec_cmds_c *p_ccodec = NULL;
 934
 935             for( size_t j = 0; j < cp->ListSize(); j++ )
 936             {
 937                 EbmlElement *k= (*cp)[j];
 938
 939                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
 940                 {
 941                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
 942                     if ( uint32(*p_codec_id) == 0 )
 943                         p_ccodec = new matroska_script_codec_c( sys );
 944                     else if ( uint32(*p_codec_id) == 1 )
 945                         p_ccodec = new dvd_chapter_codec_c( sys );
 946                     break;
 947                 }
 948             }
 949
 950             if ( p_ccodec != NULL )
 951             {
 952                 for( size_t j = 0; j < cp->ListSize(); j++ )
 953                 {
 954                     EbmlElement *k= (*cp)[j];
 955
 956                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
 957                     {
 958                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
 959                         p_ccodec->SetPrivate( *p_private );
 960                     }
 961                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
 962                     {
 963                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
 964                     }
 965                 }
 966                 chapters.codecs.push_back( p_ccodec );
 967             }
 968         }
 969         else if( MKV_IS_ID( l, KaxChapterAtom ) )
 970         {
 971             chapter_item_c *new_sub_chapter = new chapter_item_c();
 972             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
 973             new_sub_chapter->p_parent = &chapters;
 974             chapters.sub_chapters.push_back( new_sub_chapter );
 975         }
 976     }
 977 }
 978
 979 /*****************************************************************************
 980  * ParseAttachments:
 981  *****************************************************************************/
 982 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
 983 {
 984     EbmlElement *el;
 985     int i_upper_level = 0;
 986
 987     attachments->Read( es, EBML_CONTEXT(attachments), i_upper_level, el, true );
 988
 989     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
 990
 991     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
 992     {
 993         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
 994         attachment_c *new_attachment = new attachment_c( ToUTF8( UTFstring( GetChild<KaxFileName>( *attachedFile ) ) ),
 995                                                         GetChild<KaxMimeType>( *attachedFile ),
 996                                                         img_data.GetSize() );
 997
 998         if( new_attachment->init() )
 999         {
1000              memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
1001              sys.stored_attachments.push_back( new_attachment );
1002         }
1003         else
1004         {
1005             delete new_attachment;
1006         }
1007
1008         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
1009     }
1010 }
1011
1012 /*****************************************************************************
1013  * ParseChapters:
1014  *****************************************************************************/
1015 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
1016 {
1017     EbmlElement *el;
1018     int i_upper_level = 0;
1019
1020     /* Master elements */
1021     chapters->Read( es, EBML_CONTEXT(chapters), i_upper_level, el, true );
1022
1023     for( size_t i = 0; i < chapters->ListSize(); i++ )
1024     {
1025         EbmlElement *l = (*chapters)[i];
1026
1027         if( MKV_IS_ID( l, KaxEditionEntry ) )
1028         {
1029             chapter_edition_c *p_edition = new chapter_edition_c();
1030
1031             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1032             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1033             for( size_t j = 0; j < E->ListSize(); j++ )
1034             {
1035                 EbmlElement *l = (*E)[j];
1036
1037                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1038                 {
1039                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1040                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1041                     p_edition->sub_chapters.push_back( new_sub_chapter );
1042                 }
1043                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1044                 {
1045                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1046                 }
1047                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1048                 {
1049                     p_edition->b_ordered = var_InheritBool( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1050                 }
1051                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1052                 {
1053                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1054                         i_default_edition = stored_editions.size();
1055                 }
1056                 else if( MKV_IS_ID( l, KaxEditionFlagHidden ) )
1057                 {
1058                     // FIXME to implement
1059                 }
1060                 else
1061                 {
1062                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1063                 }
1064             }
1065             stored_editions.push_back( p_edition );
1066         }
1067         else
1068         {
1069             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1070         }
1071     }
1072 }
1073
1074 void matroska_segment_c::ParseCluster( )
1075 {
1076     EbmlElement *el;
1077     EbmlMaster  *m;
1078     int i_upper_level = 0;
1079
1080     /* Master elements */
1081     m = static_cast<EbmlMaster *>( cluster );
1082     m->Read( es, EBML_CONTEXT(cluster), i_upper_level, el, true );
1083
1084     for( unsigned int i = 0; i < m->ListSize(); i++ )
1085     {
1086         EbmlElement *l = (*m)[i];
1087
1088         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1089         {
1090             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1091
1092             cluster->InitTimecode( uint64( ctc ), i_timescale );
1093             break;
1094         }
1095     }
1096
1097     i_start_time = cluster->GlobalTimecode() / 1000;
1098 }
1099