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                 tk->fmt.video.i_aspect = VOUT_ASPECT_FACTOR * i_display_width / i_display_height;
 567             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 568             {
 569                 tk->fmt.video.i_visible_width = tk->fmt.video.i_width;
 570                 tk->fmt.video.i_visible_height = tk->fmt.video.i_height;
 571                 tk->fmt.video.i_x_offset = i_crop_left;
 572                 tk->fmt.video.i_y_offset = i_crop_top;
 573                 tk->fmt.video.i_visible_width -= i_crop_left + i_crop_right;
 574                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 575             }
 576             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 577                we do not support this atm */
 578         }
 579         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 580         {
 581             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 582             unsigned int j;
 583
 584             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 585
 586             for( j = 0; j < tka->ListSize(); j++ )
 587             {
 588                 EbmlElement *l = (*tka)[j];
 589
 590                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 591                 {
 592                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 593
 594                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 595                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 596                 }
 597                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 598                 {
 599                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 600
 601                     tk->fmt.audio.i_rate = (int)float( afreq );
 602                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 603                 }
 604                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 605                 {
 606                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 607
 608                     tk->fmt.audio.i_channels = uint8( achan );
 609                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 610                 }
 611                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 612                 {
 613                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 614
 615                     tk->fmt.audio.i_bitspersample = uint8( abits );
 616                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 617                 }
 618                 else
 619                 {
 620                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 621                 }
 622             }
 623         }
 624         else
 625         {
 626             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 627                      typeid(*l).name() );
 628         }
 629     }
 630
 631     if ( bSupported )
 632     {
 633         tracks.push_back( tk );
 634     }
 635     else
 636     {
 637         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 638         delete tk;
 639     }
 640 }
 641
 642 /*****************************************************************************
 643  * ParseTracks:
 644  *****************************************************************************/
 645 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 646 {
 647     EbmlElement *el;
 648     unsigned int i;
 649     int i_upper_level = 0;
 650
 651     /* Master elements */
 652     tracks->Read( es, tracks->Generic().Context, i_upper_level, el, true );
 653
 654     for( i = 0; i < tracks->ListSize(); i++ )
 655     {
 656         EbmlElement *l = (*tracks)[i];
 657
 658         if( MKV_IS_ID( l, KaxTrackEntry ) )
 659         {
 660             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 661         }
 662         else
 663         {
 664             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 665         }
 666     }
 667 }
 668
 669 /*****************************************************************************
 670  * ParseInfo:
 671  *****************************************************************************/
 672 void matroska_segment_c::ParseInfo( KaxInfo *info )
 673 {
 674     EbmlElement *el;
 675     EbmlMaster  *m;
 676     size_t i, j;
 677     int i_upper_level = 0;
 678
 679     /* Master elements */
 680     m = static_cast<EbmlMaster *>(info);
 681     m->Read( es, info->Generic().Context, i_upper_level, el, true );
 682
 683     for( i = 0; i < m->ListSize(); i++ )
 684     {
 685         EbmlElement *l = (*m)[i];
 686
 687         if( MKV_IS_ID( l, KaxSegmentUID ) )
 688         {
 689             if ( p_segment_uid == NULL )
 690                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 691
 692             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 693         }
 694         else if( MKV_IS_ID( l, KaxPrevUID ) )
 695         {
 696             if ( p_prev_segment_uid == NULL )
 697                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 698
 699             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 700         }
 701         else if( MKV_IS_ID( l, KaxNextUID ) )
 702         {
 703             if ( p_next_segment_uid == NULL )
 704                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 705
 706             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 707         }
 708         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 709         {
 710             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 711
 712             i_timescale = uint64(tcs);
 713
 714             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 715                      i_timescale );
 716         }
 717         else if( MKV_IS_ID( l, KaxDuration ) )
 718         {
 719             KaxDuration &dur = *(KaxDuration*)l;
 720
 721             i_duration = mtime_t( double( dur ) );
 722
 723             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 724                      i_duration );
 725         }
 726         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 727         {
 728             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 729
 730             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 731
 732             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 733                      psz_muxing_application );
 734         }
 735         else if( MKV_IS_ID( l, KaxWritingApp ) )
 736         {
 737             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 738
 739             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 740
 741             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 742                      psz_writing_application );
 743         }
 744         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 745         {
 746             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 747
 748             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 749
 750             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 751                      psz_segment_filename );
 752         }
 753         else if( MKV_IS_ID( l, KaxTitle ) )
 754         {
 755             KaxTitle &title = *(KaxTitle*)l;
 756
 757             psz_title = ToUTF8( UTFstring( title ) );
 758
 759             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 760         }
 761         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 762         {
 763             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 764
 765             families.push_back( new KaxSegmentFamily(*uid) );
 766
 767             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 768         }
 769         else if( MKV_IS_ID( l, KaxDateUTC ) )
 770         {
 771             KaxDateUTC &date = *(KaxDateUTC*)l;
 772             time_t i_date;
 773             struct tm tmres;
 774             char   buffer[25];
 775
 776             i_date = date.GetEpochDate();
 777             if( gmtime_r( &i_date, &tmres ) &&
 778                 strftime( buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y",
 779                           &tmres ) )
 780             {
 781                 psz_date_utc = strdup( buffer );
 782                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", buffer );
 783             }
 784         }
 785         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 786         {
 787             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 788             chapter_translation_c *p_translate = new chapter_translation_c();
 789
 790             p_trans->Read( es, p_trans->Generic().Context, i_upper_level, el, true );
 791             for( j = 0; j < p_trans->ListSize(); j++ )
 792             {
 793                 EbmlElement *l = (*p_trans)[j];
 794
 795                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 796                 {
 797                     p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 798                 }
 799                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 800                 {
 801                     p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 802                 }
 803                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 804                 {
 805                     p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 806                 }
 807             }
 808
 809             translations.push_back( p_translate );
 810         }
 811         else
 812         {
 813             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 814         }
 815     }
 816
 817     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 818     i_duration = mtime_t(f_dur);
 819 }
 820
 821
 822 /*****************************************************************************
 823  * ParseChapterAtom
 824  *****************************************************************************/
 825 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 826 {
 827     size_t i, j;
 828
 829     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 830     for( i = 0; i < ca->ListSize(); i++ )
 831     {
 832         EbmlElement *l = (*ca)[i];
 833
 834         if( MKV_IS_ID( l, KaxChapterUID ) )
 835         {
 836             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 837             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %"PRId64"", chapters.i_uid );
 838         }
 839         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 840         {
 841             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 842             chapters.b_display_seekpoint = uint8( flag ) == 0;
 843
 844             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 845         }
 846         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
 847         {
 848             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
 849             chapters.i_start_time = uint64( start ) / INT64_C(1000);
 850
 851             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %"PRId64"", chapters.i_start_time );
 852         }
 853         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
 854         {
 855             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
 856             chapters.i_end_time = uint64( end ) / INT64_C(1000);
 857
 858             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %"PRId64"", chapters.i_end_time );
 859         }
 860         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
 861         {
 862             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
 863
 864             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
 865             for( j = 0; j < cd->ListSize(); j++ )
 866             {
 867                 EbmlElement *l= (*cd)[j];
 868
 869                 if( MKV_IS_ID( l, KaxChapterString ) )
 870                 {
 871                     int k;
 872
 873                     KaxChapterString &name =*(KaxChapterString*)l;
 874                     for (k = 0; k < i_level; k++)
 875                         chapters.psz_name += '+';
 876                     chapters.psz_name += ' ';
 877                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
 878                     chapters.psz_name += psz_tmp_utf8;
 879                     chapters.b_user_display = true;
 880
 881                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
 882                     free( psz_tmp_utf8 );
 883                 }
 884                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
 885                 {
 886                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
 887                     const char *psz = string( lang ).c_str();
 888
 889                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
 890                 }
 891                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
 892                 {
 893                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
 894                     const char *psz = string( ct ).c_str();
 895
 896                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
 897                 }
 898             }
 899         }
 900         else if( MKV_IS_ID( l, KaxChapterProcess ) )
 901         {
 902             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
 903
 904             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
 905             chapter_codec_cmds_c *p_ccodec = NULL;
 906
 907             for( j = 0; j < cp->ListSize(); j++ )
 908             {
 909                 EbmlElement *k= (*cp)[j];
 910
 911                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
 912                 {
 913                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
 914                     if ( uint32(*p_codec_id) == 0 )
 915                         p_ccodec = new matroska_script_codec_c( sys );
 916                     else if ( uint32(*p_codec_id) == 1 )
 917                         p_ccodec = new dvd_chapter_codec_c( sys );
 918                     break;
 919                 }
 920             }
 921
 922             if ( p_ccodec != NULL )
 923             {
 924                 for( j = 0; j < cp->ListSize(); j++ )
 925                 {
 926                     EbmlElement *k= (*cp)[j];
 927
 928                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
 929                     {
 930                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
 931                         p_ccodec->SetPrivate( *p_private );
 932                     }
 933                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
 934                     {
 935                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
 936                     }
 937                 }
 938                 chapters.codecs.push_back( p_ccodec );
 939             }
 940         }
 941         else if( MKV_IS_ID( l, KaxChapterAtom ) )
 942         {
 943             chapter_item_c *new_sub_chapter = new chapter_item_c();
 944             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
 945             new_sub_chapter->psz_parent = &chapters;
 946             chapters.sub_chapters.push_back( new_sub_chapter );
 947         }
 948     }
 949 }
 950
 951 /*****************************************************************************
 952  * ParseAttachments:
 953  *****************************************************************************/
 954 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
 955 {
 956     EbmlElement *el;
 957     int i_upper_level = 0;
 958
 959     attachments->Read( es, attachments->Generic().Context, i_upper_level, el, true );
 960
 961     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
 962
 963     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
 964     {
 965         std::string psz_mime_type  = GetChild<KaxMimeType>( *attachedFile );
 966         KaxFileName  &file_name    = GetChild<KaxFileName>( *attachedFile );
 967         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
 968
 969         attachment_c *new_attachment = new attachment_c();
 970
 971         if( new_attachment )
 972         {
 973             new_attachment->psz_file_name  = ToUTF8( UTFstring( file_name ) );
 974             new_attachment->psz_mime_type  = psz_mime_type;
 975             new_attachment->i_size         = img_data.GetSize();
 976             new_attachment->p_data         = malloc( img_data.GetSize() );
 977
 978             if( new_attachment->p_data )
 979             {
 980                 memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
 981                 sys.stored_attachments.push_back( new_attachment );
 982             }
 983             else
 984             {
 985                 delete new_attachment;
 986             }
 987         }
 988
 989         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
 990     }
 991 }
 992
 993 /*****************************************************************************
 994  * ParseChapters:
 995  *****************************************************************************/
 996 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
 997 {
 998     EbmlElement *el;
 999     size_t i;
1000     int i_upper_level = 0;
1001     mtime_t i_dur;
1002
1003     /* Master elements */
1004     chapters->Read( es, chapters->Generic().Context, i_upper_level, el, true );
1005
1006     for( i = 0; i < chapters->ListSize(); i++ )
1007     {
1008         EbmlElement *l = (*chapters)[i];
1009
1010         if( MKV_IS_ID( l, KaxEditionEntry ) )
1011         {
1012             chapter_edition_c *p_edition = new chapter_edition_c();
1013
1014             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1015             size_t j;
1016             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1017             for( j = 0; j < E->ListSize(); j++ )
1018             {
1019                 EbmlElement *l = (*E)[j];
1020
1021                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1022                 {
1023                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1024                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1025                     p_edition->sub_chapters.push_back( new_sub_chapter );
1026                 }
1027                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1028                 {
1029                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1030                 }
1031                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1032                 {
1033                     p_edition->b_ordered = config_GetInt( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1034                 }
1035                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1036                 {
1037                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1038                         i_default_edition = stored_editions.size();
1039                 }
1040                 else
1041                 {
1042                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1043                 }
1044             }
1045             stored_editions.push_back( p_edition );
1046         }
1047         else
1048         {
1049             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1050         }
1051     }
1052
1053     for( i = 0; i < stored_editions.size(); i++ )
1054     {
1055         stored_editions[i]->RefreshChapters( );
1056     }
1057
1058     if ( stored_editions.size() != 0 && stored_editions[i_default_edition]->b_ordered )
1059     {
1060         /* update the duration of the segment according to the sum of all sub chapters */
1061         i_dur = stored_editions[i_default_edition]->Duration() / INT64_C(1000);
1062         if (i_dur > 0)
1063             i_duration = i_dur;
1064     }
1065 }
1066
1067 void matroska_segment_c::ParseCluster( )
1068 {
1069     EbmlElement *el;
1070     EbmlMaster  *m;
1071     unsigned int i;
1072     int i_upper_level = 0;
1073
1074     /* Master elements */
1075     m = static_cast<EbmlMaster *>( cluster );
1076     m->Read( es, cluster->Generic().Context, i_upper_level, el, true );
1077
1078     for( i = 0; i < m->ListSize(); i++ )
1079     {
1080         EbmlElement *l = (*m)[i];
1081
1082         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1083         {
1084             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1085
1086             cluster->InitTimecode( uint64( ctc ), i_timescale );
1087             break;
1088         }
1089     }
1090
1091     i_start_time = cluster->GlobalTimecode() / 1000;
1092 }
1093
1094