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

   1 /*****************************************************************************
   2  * mkv.cpp : matroska demuxer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Steve Lhomme <steve.lhomme@free.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #include "matroska_segment.hpp"
  26
  27 #include "chapters.hpp"
  28
  29 #include "demux.hpp"
  30
  31 /*****************************************************************************
  32  * Some functions to manipulate memory
  33  *****************************************************************************/
  34 static inline char * ToUTF8( const UTFstring &u )
  35 {
  36     return strdup( u.GetUTF8().c_str() );
  37 }
  38
  39 /*****************************************************************************
  40  * ParseSeekHead:
  41  *****************************************************************************/
  42 void matroska_segment_c::ParseSeekHead( KaxSeekHead *seekhead )
  43 {
  44     EbmlParser  *ep;
  45     EbmlElement *l;
  46     bool b_seekable;
  47
  48     i_seekhead_count++;
  49
  50     stream_Control( sys.demuxer.s, STREAM_CAN_SEEK, &b_seekable );
  51     if( !b_seekable )
  52         return;
  53
  54     ep = new EbmlParser( &es, seekhead, &sys.demuxer );
  55
  56     while( ( l = ep->Get() ) != NULL )
  57     {
  58         if( MKV_IS_ID( l, KaxSeek ) )
  59         {
  60             EbmlId id = EbmlVoid::ClassInfos.GlobalId;
  61             int64_t i_pos = -1;
  62
  63             msg_Dbg( &sys.demuxer, "|   |   + Seek" );
  64             ep->Down();
  65             while( ( l = ep->Get() ) != NULL )
  66             {
  67                 if( MKV_IS_ID( l, KaxSeekID ) )
  68                 {
  69                     KaxSeekID &sid = *(KaxSeekID*)l;
  70                     sid.ReadData( es.I_O() );
  71                     id = EbmlId( sid.GetBuffer(), sid.GetSize() );
  72                 }
  73                 else if( MKV_IS_ID( l, KaxSeekPosition ) )
  74                 {
  75                     KaxSeekPosition &spos = *(KaxSeekPosition*)l;
  76                     spos.ReadData( es.I_O() );
  77                     i_pos = (int64_t)segment->GetGlobalPosition( uint64( spos ) );
  78                 }
  79                 else
  80                 {
  81                     /* Many mkvmerge files hit this case. It seems to be a broken SeekHead */
  82                     msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name()  );
  83                 }
  84             }
  85             ep->Up();
  86
  87             if( i_pos >= 0 )
  88             {
  89                 if( id == KaxCues::ClassInfos.GlobalId )
  90                 {
  91                     msg_Dbg( &sys.demuxer, "|   - cues at %"PRId64, i_pos );
  92                     LoadSeekHeadItem( KaxCues::ClassInfos, i_pos );
  93                 }
  94                 else if( id == KaxInfo::ClassInfos.GlobalId )
  95                 {
  96                     msg_Dbg( &sys.demuxer, "|   - info at %"PRId64, i_pos );
  97                     LoadSeekHeadItem( KaxInfo::ClassInfos, i_pos );
  98                 }
  99                 else if( id == KaxChapters::ClassInfos.GlobalId )
 100                 {
 101                     msg_Dbg( &sys.demuxer, "|   - chapters at %"PRId64, i_pos );
 102                     LoadSeekHeadItem( KaxChapters::ClassInfos, i_pos );
 103                 }
 104                 else if( id == KaxTags::ClassInfos.GlobalId )
 105                 {
 106                     msg_Dbg( &sys.demuxer, "|   - tags at %"PRId64, i_pos );
 107                     LoadSeekHeadItem( KaxTags::ClassInfos, i_pos );
 108                 }
 109                 else if( id == KaxSeekHead::ClassInfos.GlobalId )
 110                 {
 111                     msg_Dbg( &sys.demuxer, "|   - chained seekhead at %"PRId64, i_pos );
 112                     LoadSeekHeadItem( KaxSeekHead::ClassInfos, i_pos );
 113                 }
 114                 else if( id == KaxTracks::ClassInfos.GlobalId )
 115                 {
 116                     msg_Dbg( &sys.demuxer, "|   - tracks at %"PRId64, i_pos );
 117                     LoadSeekHeadItem( KaxTracks::ClassInfos, i_pos );
 118                 }
 119                 else if( id == KaxAttachments::ClassInfos.GlobalId )
 120                 {
 121                     msg_Dbg( &sys.demuxer, "|   - attachments at %"PRId64, i_pos );
 122                     LoadSeekHeadItem( KaxAttachments::ClassInfos, i_pos );
 123                 }
 124                 else
 125                     msg_Dbg( &sys.demuxer, "|   - unknown seekhead reference at %"PRId64, i_pos );
 126             }
 127         }
 128         else
 129             msg_Dbg( &sys.demuxer, "|   |   + ParseSeekHead Unknown (%s)", typeid(*l).name() );
 130     }
 131     delete ep;
 132 }
 133
 134
 135 /**
 136  * Helper function to print the mkv parse tree
 137  */
 138 static void MkvTree( demux_t & demuxer, int i_level, const char *psz_format, ... )
 139 {
 140     va_list args;
 141     if( i_level > 9 )
 142     {
 143         msg_Err( &demuxer, "too deep tree" );
 144         return;
 145     }
 146     va_start( args, psz_format );
 147     static const char psz_foo[] = "|   |   |   |   |   |   |   |   |   |";
 148     char *psz_foo2 = (char*)malloc( i_level * 4 + 3 + strlen( psz_format ) );
 149     strncpy( psz_foo2, psz_foo, 4 * i_level );
 150     psz_foo2[ 4 * i_level ] = '+';
 151     psz_foo2[ 4 * i_level + 1 ] = ' ';
 152     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 153     __msg_GenericVa( VLC_OBJECT(&demuxer),VLC_MSG_DBG, "mkv", psz_foo2, args );
 154     free( psz_foo2 );
 155     va_end( args );
 156 }
 157
 158
 159 /*****************************************************************************
 160  * ParseTrackEntry:
 161  *****************************************************************************/
 162 void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
 163 {
 164     size_t i, j, k, n;
 165     bool bSupported = true;
 166
 167     mkv_track_t *tk;
 168
 169     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
 170
 171     tk = new mkv_track_t();
 172
 173     /* Init the track */
 174     memset( tk, 0, sizeof( mkv_track_t ) );
 175
 176     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
 177     tk->fmt.psz_language = strdup("English");
 178     tk->fmt.psz_description = NULL;
 179
 180     tk->b_default = true;
 181     tk->b_enabled = true;
 182     tk->b_silent = false;
 183     tk->i_number = tracks.size() - 1;
 184     tk->i_extra_data = 0;
 185     tk->p_extra_data = NULL;
 186     tk->psz_codec = NULL;
 187     tk->b_dts_only = false;
 188     tk->i_default_duration = 0;
 189     tk->f_timecodescale = 1.0;
 190
 191     tk->b_inited = false;
 192     tk->i_data_init = 0;
 193     tk->p_data_init = NULL;
 194
 195     tk->psz_codec_name = NULL;
 196     tk->psz_codec_settings = NULL;
 197     tk->psz_codec_info_url = NULL;
 198     tk->psz_codec_download_url = NULL;
 199
 200     tk->i_compression_type = MATROSKA_COMPRESSION_NONE;
 201     tk->p_compression_data = NULL;
 202
 203     for( i = 0; i < m->ListSize(); i++ )
 204     {
 205         EbmlElement *l = (*m)[i];
 206
 207         if( MKV_IS_ID( l, KaxTrackNumber ) )
 208         {
 209             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
 210
 211             tk->i_number = uint32( tnum );
 212             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
 213         }
 214         else  if( MKV_IS_ID( l, KaxTrackUID ) )
 215         {
 216             KaxTrackUID &tuid = *(KaxTrackUID*)l;
 217
 218             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
 219         }
 220         else  if( MKV_IS_ID( l, KaxTrackType ) )
 221         {
 222             const char *psz_type;
 223             KaxTrackType &ttype = *(KaxTrackType*)l;
 224
 225             switch( uint8(ttype) )
 226             {
 227                 case track_audio:
 228                     psz_type = "audio";
 229                     tk->fmt.i_cat = AUDIO_ES;
 230                     break;
 231                 case track_video:
 232                     psz_type = "video";
 233                     tk->fmt.i_cat = VIDEO_ES;
 234                     break;
 235                 case track_subtitle:
 236                     psz_type = "subtitle";
 237                     tk->fmt.i_cat = SPU_ES;
 238                     break;
 239                 case track_buttons:
 240                     psz_type = "buttons";
 241                     tk->fmt.i_cat = SPU_ES;
 242                     break;
 243                 default:
 244                     psz_type = "unknown";
 245                     tk->fmt.i_cat = UNKNOWN_ES;
 246                     break;
 247             }
 248
 249             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
 250         }
 251 //        else  if( EbmlId( *l ) == KaxTrackFlagEnabled::ClassInfos.GlobalId )
 252 //        {
 253 //            KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
 254
 255 //            tk->b_enabled = uint32( fenb );
 256 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u",
 257 //                     uint32( fenb )  );
 258 //        }
 259         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
 260         {
 261             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
 262
 263             tk->b_default = uint32( fdef );
 264             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef )  );
 265         }
 266         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) )
 267         {
 268             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
 269
 270             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
 271         }
 272         else  if( MKV_IS_ID( l, KaxTrackMinCache ) )
 273         {
 274             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
 275
 276             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
 277         }
 278         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) )
 279         {
 280             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
 281
 282             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
 283         }
 284         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
 285         {
 286             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
 287
 288             tk->i_default_duration = uint64(defd);
 289             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration=%"PRId64, uint64(defd) );
 290         }
 291         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
 292         {
 293             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
 294
 295             tk->f_timecodescale = float( ttcs );
 296             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
 297         }
 298         else if( MKV_IS_ID( l, KaxTrackName ) )
 299         {
 300             KaxTrackName &tname = *(KaxTrackName*)l;
 301
 302             tk->fmt.psz_description = ToUTF8( UTFstring( tname ) );
 303             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
 304         }
 305         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
 306         {
 307             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
 308
 309             free( tk->fmt.psz_language );
 310             tk->fmt.psz_language = strdup( string( lang ).c_str() );
 311             msg_Dbg( &sys.demuxer,
 312                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
 313         }
 314         else  if( MKV_IS_ID( l, KaxCodecID ) )
 315         {
 316             KaxCodecID &codecid = *(KaxCodecID*)l;
 317
 318             tk->psz_codec = strdup( string( codecid ).c_str() );
 319             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
 320         }
 321         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
 322         {
 323             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
 324
 325             tk->i_extra_data = cpriv.GetSize();
 326             if( tk->i_extra_data > 0 )
 327             {
 328                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
 329                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
 330             }
 331             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size=%"PRId64, cpriv.GetSize() );
 332         }
 333         else if( MKV_IS_ID( l, KaxCodecName ) )
 334         {
 335             KaxCodecName &cname = *(KaxCodecName*)l;
 336
 337             tk->psz_codec_name = ToUTF8( UTFstring( cname ) );
 338             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
 339         }
 340         else if( MKV_IS_ID( l, KaxContentEncodings ) )
 341         {
 342             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
 343             MkvTree( sys.demuxer, 3, "Content Encodings" );
 344             if ( cencs->ListSize() > 1 )
 345             {
 346                 msg_Err( &sys.demuxer, "Multiple Compression method not supported" );
 347                 bSupported = false;
 348             }
 349             for( j = 0; j < cencs->ListSize(); j++ )
 350             {
 351                 EbmlElement *l2 = (*cencs)[j];
 352                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
 353                 {
 354                     MkvTree( sys.demuxer, 4, "Content Encoding" );
 355                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
 356                     for( k = 0; k < cenc->ListSize(); k++ )
 357                     {
 358                         EbmlElement *l3 = (*cenc)[k];
 359                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
 360                         {
 361                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
 362                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
 363                         }
 364                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
 365                         {
 366                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
 367                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
 368                         }
 369                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
 370                         {
 371                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
 372                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
 373                         }
 374                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
 375                         {
 376                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
 377                             MkvTree( sys.demuxer, 5, "Content Compression" );
 378                             for( n = 0; n < compr->ListSize(); n++ )
 379                             {
 380                                 EbmlElement *l4 = (*compr)[n];
 381                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
 382                                 {
 383                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
 384                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
 385                                     tk->i_compression_type = uint32( compalg );
 386                                     if ( ( tk->i_compression_type != MATROSKA_COMPRESSION_ZLIB ) &&
 387                                          ( tk->i_compression_type != MATROSKA_COMPRESSION_HEADER ) )
 388                                     {
 389                                         msg_Err( &sys.demuxer, "Track Compression method %d not supported", tk->i_compression_type );
 390                                         bSupported = false;
 391                                     }
 392                                 }
 393                                 else if( MKV_IS_ID( l4, KaxContentCompSettings ) )
 394                                 {
 395                                     tk->p_compression_data = new KaxContentCompSettings( *(KaxContentCompSettings*)l4 );
 396                                 }
 397                                 else
 398                                 {
 399                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
 400                                 }
 401                             }
 402                         }
 403                         else
 404                         {
 405                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
 406                         }
 407                     }
 408                 }
 409                 else
 410                 {
 411                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
 412                 }
 413             }
 414         }
 415 //        else if( EbmlId( *l ) == KaxCodecSettings::ClassInfos.GlobalId )
 416 //        {
 417 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
 418
 419 //            tk->psz_codec_settings = ToUTF8( UTFstring( cset ) );
 420 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
 421 //        }
 422 //        else if( EbmlId( *l ) == KaxCodecInfoURL::ClassInfos.GlobalId )
 423 //        {
 424 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
 425
 426 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
 427 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
 428 //        }
 429 //        else if( EbmlId( *l ) == KaxCodecDownloadURL::ClassInfos.GlobalId )
 430 //        {
 431 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
 432
 433 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
 434 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
 435 //        }
 436 //        else if( EbmlId( *l ) == KaxCodecDecodeAll::ClassInfos.GlobalId )
 437 //        {
 438 //            KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
 439
 440 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u <== UNUSED", uint8( cdall ) );
 441 //        }
 442 //        else if( EbmlId( *l ) == KaxTrackOverlay::ClassInfos.GlobalId )
 443 //        {
 444 //            KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
 445
 446 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u <== UNUSED", uint32( tovr ) );
 447 //        }
 448         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
 449         {
 450             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
 451             unsigned int j;
 452             unsigned int i_crop_right = 0, i_crop_left = 0, i_crop_top = 0, i_crop_bottom = 0;
 453             unsigned int i_display_unit = 0, i_display_width = 0, i_display_height = 0;
 454
 455             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
 456             tk->f_fps = 0.0;
 457
 458             tk->fmt.video.i_frame_rate_base = (unsigned int)(tk->i_default_duration / 1000);
 459             tk->fmt.video.i_frame_rate = 1000000;
 460
 461             for( j = 0; j < tkv->ListSize(); j++ )
 462             {
 463                 EbmlElement *l = (*tkv)[j];
 464 //                if( EbmlId( *el4 ) == KaxVideoFlagInterlaced::ClassInfos.GlobalId )
 465 //                {
 466 //                    KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)el4;
 467
 468 //                    msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
 469 //                }
 470 //                else if( EbmlId( *el4 ) == KaxVideoStereoMode::ClassInfos.GlobalId )
 471 //                {
 472 //                    KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)el4;
 473
 474 //                    msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
 475 //                }
 476 //                else
 477                 if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
 478                 {
 479                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
 480
 481                     tk->fmt.video.i_width += uint16( vwidth );
 482                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
 483                 }
 484                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
 485                 {
 486                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
 487
 488                     tk->fmt.video.i_height += uint16( vheight );
 489                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
 490                 }
 491                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
 492                 {
 493                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
 494
 495                     i_display_width = uint16( vwidth );
 496                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
 497                 }
 498                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
 499                 {
 500                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
 501
 502                     i_display_height = uint16( vheight );
 503                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
 504                 }
 505                 else if( MKV_IS_ID( l, KaxVideoPixelCropBottom ) )
 506                 {
 507                     KaxVideoPixelCropBottom &cropval = *(KaxVideoPixelCropBottom*)l;
 508
 509                     i_crop_bottom = uint16( cropval );
 510                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel bottom=%d", uint16( cropval ) );
 511                 }
 512                 else if( MKV_IS_ID( l, KaxVideoPixelCropTop ) )
 513                 {
 514                     KaxVideoPixelCropTop &cropval = *(KaxVideoPixelCropTop*)l;
 515
 516                     i_crop_top = uint16( cropval );
 517                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel top=%d", uint16( cropval ) );
 518                 }
 519                 else if( MKV_IS_ID( l, KaxVideoPixelCropRight ) )
 520                 {
 521                     KaxVideoPixelCropRight &cropval = *(KaxVideoPixelCropRight*)l;
 522
 523                     i_crop_right = uint16( cropval );
 524                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel right=%d", uint16( cropval ) );
 525                 }
 526                 else if( MKV_IS_ID( l, KaxVideoPixelCropLeft ) )
 527                 {
 528                     KaxVideoPixelCropLeft &cropval = *(KaxVideoPixelCropLeft*)l;
 529
 530                     i_crop_left = uint16( cropval );
 531                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel left=%d", uint16( cropval ) );
 532                 }
 533                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
 534                 {
 535                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
 536
 537                     tk->f_fps = float( vfps );
 538                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
 539                 }
 540                 else if( EbmlId( *l ) == KaxVideoDisplayUnit::ClassInfos.GlobalId )
 541                 {
 542                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
 543
 544                     i_display_unit = uint8( vdmode );
 545                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
 546                              uint8( vdmode ) == 0 ? "pixels" : ( uint8( vdmode ) == 1 ? "centimeters": "inches" ) );
 547                 }
 548 //                else if( EbmlId( *l ) == KaxVideoAspectRatio::ClassInfos.GlobalId )
 549 //                {
 550 //                    KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
 551
 552 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
 553 //                }
 554 //                else if( EbmlId( *l ) == KaxVideoGamma::ClassInfos.GlobalId )
 555 //                {
 556 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
 557
 558 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + gamma=%f", float( gamma ) );
 559 //                }
 560                 else
 561                 {
 562                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 563                 }
 564             }
 565             if( i_display_height && i_display_width )
 566             {
 567                 tk->fmt.video.i_sar_num = i_display_width  * tk->fmt.video.i_height;
 568                 tk->fmt.video.i_sar_den = i_display_height * tk->fmt.video.i_width;
 569             }
 570             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 571             {
 572                 tk->fmt.video.i_visible_width = tk->fmt.video.i_width;
 573                 tk->fmt.video.i_visible_height = tk->fmt.video.i_height;
 574                 tk->fmt.video.i_x_offset = i_crop_left;
 575                 tk->fmt.video.i_y_offset = i_crop_top;
 576                 tk->fmt.video.i_visible_width -= i_crop_left + i_crop_right;
 577                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 578             }
 579             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 580                we do not support this atm */
 581         }
 582         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 583         {
 584             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 585             unsigned int j;
 586
 587             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 588
 589             for( j = 0; j < tka->ListSize(); j++ )
 590             {
 591                 EbmlElement *l = (*tka)[j];
 592
 593                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 594                 {
 595                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 596
 597                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 598                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 599                 }
 600                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 601                 {
 602                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 603
 604                     tk->fmt.audio.i_rate = (int)float( afreq );
 605                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 606                 }
 607                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 608                 {
 609                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 610
 611                     tk->fmt.audio.i_channels = uint8( achan );
 612                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 613                 }
 614                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 615                 {
 616                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 617
 618                     tk->fmt.audio.i_bitspersample = uint8( abits );
 619                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 620                 }
 621                 else
 622                 {
 623                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 624                 }
 625             }
 626         }
 627         else
 628         {
 629             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 630                      typeid(*l).name() );
 631         }
 632     }
 633
 634     if ( bSupported )
 635     {
 636         tracks.push_back( tk );
 637     }
 638     else
 639     {
 640         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 641         delete tk;
 642     }
 643 }
 644
 645 /*****************************************************************************
 646  * ParseTracks:
 647  *****************************************************************************/
 648 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 649 {
 650     EbmlElement *el;
 651     unsigned int i;
 652     int i_upper_level = 0;
 653
 654     /* Master elements */
 655     tracks->Read( es, tracks->Generic().Context, i_upper_level, el, true );
 656
 657     for( i = 0; i < tracks->ListSize(); i++ )
 658     {
 659         EbmlElement *l = (*tracks)[i];
 660
 661         if( MKV_IS_ID( l, KaxTrackEntry ) )
 662         {
 663             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 664         }
 665         else
 666         {
 667             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 668         }
 669     }
 670 }
 671
 672 /*****************************************************************************
 673  * ParseInfo:
 674  *****************************************************************************/
 675 void matroska_segment_c::ParseInfo( KaxInfo *info )
 676 {
 677     EbmlElement *el;
 678     EbmlMaster  *m;
 679     size_t i, j;
 680     int i_upper_level = 0;
 681
 682     /* Master elements */
 683     m = static_cast<EbmlMaster *>(info);
 684     m->Read( es, info->Generic().Context, i_upper_level, el, true );
 685
 686     for( i = 0; i < m->ListSize(); i++ )
 687     {
 688         EbmlElement *l = (*m)[i];
 689
 690         if( MKV_IS_ID( l, KaxSegmentUID ) )
 691         {
 692             if ( p_segment_uid == NULL )
 693                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 694
 695             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 696         }
 697         else if( MKV_IS_ID( l, KaxPrevUID ) )
 698         {
 699             if ( p_prev_segment_uid == NULL )
 700                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 701
 702             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 703         }
 704         else if( MKV_IS_ID( l, KaxNextUID ) )
 705         {
 706             if ( p_next_segment_uid == NULL )
 707                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 708
 709             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 710         }
 711         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 712         {
 713             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 714
 715             i_timescale = uint64(tcs);
 716
 717             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 718                      i_timescale );
 719         }
 720         else if( MKV_IS_ID( l, KaxDuration ) )
 721         {
 722             KaxDuration &dur = *(KaxDuration*)l;
 723
 724             i_duration = mtime_t( double( dur ) );
 725
 726             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 727                      i_duration );
 728         }
 729         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 730         {
 731             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 732
 733             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 734
 735             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 736                      psz_muxing_application );
 737         }
 738         else if( MKV_IS_ID( l, KaxWritingApp ) )
 739         {
 740             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 741
 742             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 743
 744             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 745                      psz_writing_application );
 746         }
 747         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 748         {
 749             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 750
 751             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 752
 753             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 754                      psz_segment_filename );
 755         }
 756         else if( MKV_IS_ID( l, KaxTitle ) )
 757         {
 758             KaxTitle &title = *(KaxTitle*)l;
 759
 760             psz_title = ToUTF8( UTFstring( title ) );
 761
 762             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 763         }
 764         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 765         {
 766             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 767
 768             families.push_back( new KaxSegmentFamily(*uid) );
 769
 770             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 771         }
 772         else if( MKV_IS_ID( l, KaxDateUTC ) )
 773         {
 774             KaxDateUTC &date = *(KaxDateUTC*)l;
 775             time_t i_date;
 776             struct tm tmres;
 777             char   buffer[25];
 778
 779             i_date = date.GetEpochDate();
 780             if( gmtime_r( &i_date, &tmres ) &&
 781                 strftime( buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y",
 782                           &tmres ) )
 783             {
 784                 psz_date_utc = strdup( buffer );
 785                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", buffer );
 786             }
 787         }
 788         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 789         {
 790             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 791             chapter_translation_c *p_translate = new chapter_translation_c();
 792
 793             p_trans->Read( es, p_trans->Generic().Context, i_upper_level, el, true );
 794             for( j = 0; j < p_trans->ListSize(); j++ )
 795             {
 796                 EbmlElement *l = (*p_trans)[j];
 797
 798                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 799                 {
 800                     p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 801                 }
 802                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 803                 {
 804                     p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 805                 }
 806                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 807                 {
 808                     p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 809                 }
 810             }
 811
 812             translations.push_back( p_translate );
 813         }
 814         else
 815         {
 816             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 817         }
 818     }
 819
 820     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 821     i_duration = mtime_t(f_dur);
 822 }
 823
 824
 825 /*****************************************************************************
 826  * ParseChapterAtom
 827  *****************************************************************************/
 828 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 829 {
 830     size_t i, j;
 831
 832     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 833     for( i = 0; i < ca->ListSize(); i++ )
 834     {
 835         EbmlElement *l = (*ca)[i];
 836
 837         if( MKV_IS_ID( l, KaxChapterUID ) )
 838         {
 839             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 840             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %"PRId64"", chapters.i_uid );
 841         }
 842         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 843         {
 844             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 845             chapters.b_display_seekpoint = uint8( flag ) == 0;
 846
 847             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 848         }
 849         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
 850         {
 851             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
 852             chapters.i_start_time = uint64( start ) / INT64_C(1000);
 853
 854             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %"PRId64"", chapters.i_start_time );
 855         }
 856         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
 857         {
 858             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
 859             chapters.i_end_time = uint64( end ) / INT64_C(1000);
 860
 861             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %"PRId64"", chapters.i_end_time );
 862         }
 863         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
 864         {
 865             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
 866
 867             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
 868             for( j = 0; j < cd->ListSize(); j++ )
 869             {
 870                 EbmlElement *l= (*cd)[j];
 871
 872                 if( MKV_IS_ID( l, KaxChapterString ) )
 873                 {
 874                     int k;
 875
 876                     KaxChapterString &name =*(KaxChapterString*)l;
 877                     for (k = 0; k < i_level; k++)
 878                         chapters.psz_name += '+';
 879                     chapters.psz_name += ' ';
 880                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
 881                     chapters.psz_name += psz_tmp_utf8;
 882                     chapters.b_user_display = true;
 883
 884                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
 885                     free( psz_tmp_utf8 );
 886                 }
 887                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
 888                 {
 889                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
 890                     const char *psz = string( lang ).c_str();
 891
 892                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
 893                 }
 894                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
 895                 {
 896                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
 897                     const char *psz = string( ct ).c_str();
 898
 899                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
 900                 }
 901             }
 902         }
 903         else if( MKV_IS_ID( l, KaxChapterProcess ) )
 904         {
 905             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
 906
 907             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
 908             chapter_codec_cmds_c *p_ccodec = NULL;
 909
 910             for( j = 0; j < cp->ListSize(); j++ )
 911             {
 912                 EbmlElement *k= (*cp)[j];
 913
 914                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
 915                 {
 916                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
 917                     if ( uint32(*p_codec_id) == 0 )
 918                         p_ccodec = new matroska_script_codec_c( sys );
 919                     else if ( uint32(*p_codec_id) == 1 )
 920                         p_ccodec = new dvd_chapter_codec_c( sys );
 921                     break;
 922                 }
 923             }
 924
 925             if ( p_ccodec != NULL )
 926             {
 927                 for( j = 0; j < cp->ListSize(); j++ )
 928                 {
 929                     EbmlElement *k= (*cp)[j];
 930
 931                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
 932                     {
 933                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
 934                         p_ccodec->SetPrivate( *p_private );
 935                     }
 936                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
 937                     {
 938                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
 939                     }
 940                 }
 941                 chapters.codecs.push_back( p_ccodec );
 942             }
 943         }
 944         else if( MKV_IS_ID( l, KaxChapterAtom ) )
 945         {
 946             chapter_item_c *new_sub_chapter = new chapter_item_c();
 947             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
 948             new_sub_chapter->psz_parent = &chapters;
 949             chapters.sub_chapters.push_back( new_sub_chapter );
 950         }
 951     }
 952 }
 953
 954 /*****************************************************************************
 955  * ParseAttachments:
 956  *****************************************************************************/
 957 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
 958 {
 959     EbmlElement *el;
 960     int i_upper_level = 0;
 961
 962     attachments->Read( es, attachments->Generic().Context, i_upper_level, el, true );
 963
 964     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
 965
 966     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
 967     {
 968         std::string psz_mime_type  = GetChild<KaxMimeType>( *attachedFile );
 969         KaxFileName  &file_name    = GetChild<KaxFileName>( *attachedFile );
 970         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
 971
 972         attachment_c *new_attachment = new attachment_c();
 973
 974         if( new_attachment )
 975         {
 976             new_attachment->psz_file_name  = ToUTF8( UTFstring( file_name ) );
 977             new_attachment->psz_mime_type  = psz_mime_type;
 978             new_attachment->i_size         = img_data.GetSize();
 979             new_attachment->p_data         = malloc( img_data.GetSize() );
 980
 981             if( new_attachment->p_data )
 982             {
 983                 memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
 984                 sys.stored_attachments.push_back( new_attachment );
 985             }
 986             else
 987             {
 988                 delete new_attachment;
 989             }
 990         }
 991
 992         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
 993     }
 994 }
 995
 996 /*****************************************************************************
 997  * ParseChapters:
 998  *****************************************************************************/
 999 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
1000 {
1001     EbmlElement *el;
1002     size_t i;
1003     int i_upper_level = 0;
1004     mtime_t i_dur;
1005
1006     /* Master elements */
1007     chapters->Read( es, chapters->Generic().Context, i_upper_level, el, true );
1008
1009     for( i = 0; i < chapters->ListSize(); i++ )
1010     {
1011         EbmlElement *l = (*chapters)[i];
1012
1013         if( MKV_IS_ID( l, KaxEditionEntry ) )
1014         {
1015             chapter_edition_c *p_edition = new chapter_edition_c();
1016
1017             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1018             size_t j;
1019             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1020             for( j = 0; j < E->ListSize(); j++ )
1021             {
1022                 EbmlElement *l = (*E)[j];
1023
1024                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1025                 {
1026                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1027                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1028                     p_edition->sub_chapters.push_back( new_sub_chapter );
1029                 }
1030                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1031                 {
1032                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1033                 }
1034                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1035                 {
1036                     p_edition->b_ordered = var_InheritInteger( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1037                 }
1038                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1039                 {
1040                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1041                         i_default_edition = stored_editions.size();
1042                 }
1043                 else
1044                 {
1045                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1046                 }
1047             }
1048             stored_editions.push_back( p_edition );
1049         }
1050         else
1051         {
1052             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1053         }
1054     }
1055
1056     for( i = 0; i < stored_editions.size(); i++ )
1057     {
1058         stored_editions[i]->RefreshChapters( );
1059     }
1060
1061     if ( stored_editions.size() != 0 && stored_editions[i_default_edition]->b_ordered )
1062     {
1063         /* update the duration of the segment according to the sum of all sub chapters */
1064         i_dur = stored_editions[i_default_edition]->Duration() / INT64_C(1000);
1065         if (i_dur > 0)
1066             i_duration = i_dur;
1067     }
1068 }
1069
1070 void matroska_segment_c::ParseCluster( )
1071 {
1072     EbmlElement *el;
1073     EbmlMaster  *m;
1074     unsigned int i;
1075     int i_upper_level = 0;
1076
1077     /* Master elements */
1078     m = static_cast<EbmlMaster *>( cluster );
1079     m->Read( es, cluster->Generic().Context, i_upper_level, el, true );
1080
1081     for( i = 0; i < m->ListSize(); i++ )
1082     {
1083         EbmlElement *l = (*m)[i];
1084
1085         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1086         {
1087             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1088
1089             cluster->InitTimecode( uint64( ctc ), i_timescale );
1090             break;
1091         }
1092     }
1093
1094     i_start_time = cluster->GlobalTimecode() / 1000;
1095 }
1096
1097