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

   1 /*****************************************************************************
   2  * matroska_segment_parse.cpp : matroska demuxer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2010 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Steve Lhomme <steve.lhomme@free.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #include "matroska_segment.hpp"
  26
  27 #include "chapters.hpp"
  28
  29 #include "demux.hpp"
  30
  31 #include "Ebml_parser.hpp"
  32
  33 /*****************************************************************************
  34  * Some functions to manipulate memory
  35  *****************************************************************************/
  36 static inline char * ToUTF8( const UTFstring &u )
  37 {
  38     return strdup( u.GetUTF8().c_str() );
  39 }
  40
  41 /*****************************************************************************
  42  * ParseSeekHead:
  43  *****************************************************************************/
  44 void matroska_segment_c::ParseSeekHead( KaxSeekHead *seekhead )
  45 {
  46     EbmlParser  *ep;
  47     EbmlElement *l;
  48     bool b_seekable;
  49
  50     i_seekhead_count++;
  51
  52     stream_Control( sys.demuxer.s, STREAM_CAN_SEEK, &b_seekable );
  53     if( !b_seekable )
  54         return;
  55
  56     ep = new EbmlParser( &es, seekhead, &sys.demuxer );
  57
  58     while( ( l = ep->Get() ) != NULL )
  59     {
  60         if( MKV_IS_ID( l, KaxSeek ) )
  61         {
  62             EbmlId id = EBML_ID(EbmlVoid);
  63             int64_t i_pos = -1;
  64
  65 #ifdef MKV_DEBUG
  66             msg_Dbg( &sys.demuxer, "|   |   + Seek" );
  67 #endif
  68             ep->Down();
  69             while( ( l = ep->Get() ) != NULL )
  70             {
  71                 if( MKV_IS_ID( l, KaxSeekID ) )
  72                 {
  73                     KaxSeekID &sid = *(KaxSeekID*)l;
  74                     sid.ReadData( es.I_O() );
  75                     id = EbmlId( sid.GetBuffer(), sid.GetSize() );
  76                 }
  77                 else if( MKV_IS_ID( l, KaxSeekPosition ) )
  78                 {
  79                     KaxSeekPosition &spos = *(KaxSeekPosition*)l;
  80                     spos.ReadData( es.I_O() );
  81                     i_pos = (int64_t)segment->GetGlobalPosition( uint64( spos ) );
  82                 }
  83                 else
  84                 {
  85                     /* Many mkvmerge files hit this case. It seems to be a broken SeekHead */
  86                     msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name()  );
  87                 }
  88             }
  89             ep->Up();
  90
  91             if( i_pos >= 0 )
  92             {
  93                 if( id == EBML_ID(KaxCues) )
  94                 {
  95                     msg_Dbg( &sys.demuxer, "|   - cues at %"PRId64, i_pos );
  96                     LoadSeekHeadItem( EBML_INFO(KaxCues), i_pos );
  97                 }
  98                 else if( id == EBML_ID(KaxInfo) )
  99                 {
 100                     msg_Dbg( &sys.demuxer, "|   - info at %"PRId64, i_pos );
 101                     LoadSeekHeadItem( EBML_INFO(KaxInfo), i_pos );
 102                 }
 103                 else if( id == EBML_ID(KaxChapters) )
 104                 {
 105                     msg_Dbg( &sys.demuxer, "|   - chapters at %"PRId64, i_pos );
 106                     LoadSeekHeadItem( EBML_INFO(KaxChapters), i_pos );
 107                 }
 108                 else if( id == EBML_ID(KaxTags) )
 109                 {
 110                     msg_Dbg( &sys.demuxer, "|   - tags at %"PRId64, i_pos );
 111                     LoadSeekHeadItem( EBML_INFO(KaxTags), i_pos );
 112                 }
 113                 else if( id == EBML_ID(KaxSeekHead) )
 114                 {
 115                     msg_Dbg( &sys.demuxer, "|   - chained seekhead at %"PRId64, i_pos );
 116                     LoadSeekHeadItem( EBML_INFO(KaxSeekHead), i_pos );
 117                 }
 118                 else if( id == EBML_ID(KaxTracks) )
 119                 {
 120                     msg_Dbg( &sys.demuxer, "|   - tracks at %"PRId64, i_pos );
 121                     LoadSeekHeadItem( EBML_INFO(KaxTracks), i_pos );
 122                 }
 123                 else if( id == EBML_ID(KaxAttachments) )
 124                 {
 125                     msg_Dbg( &sys.demuxer, "|   - attachments at %"PRId64, i_pos );
 126                     LoadSeekHeadItem( EBML_INFO(KaxAttachments), i_pos );
 127                 }
 128 #ifdef MKV_DEBUG
 129                 else
 130                     msg_Dbg( &sys.demuxer, "|   - unknown seekhead reference at %"PRId64, i_pos );
 131 #endif
 132             }
 133         }
 134         else
 135             msg_Dbg( &sys.demuxer, "|   |   + ParseSeekHead Unknown (%s)", typeid(*l).name() );
 136     }
 137     delete ep;
 138 }
 139
 140
 141 /**
 142  * Helper function to print the mkv parse tree
 143  */
 144 static void MkvTree( demux_t & demuxer, int i_level, const char *psz_format, ... )
 145 {
 146     va_list args;
 147     if( i_level > 9 )
 148     {
 149         msg_Err( &demuxer, "MKV tree is too deep" );
 150         return;
 151     }
 152     va_start( args, psz_format );
 153     static const char psz_foo[] = "|   |   |   |   |   |   |   |   |   |";
 154     char *psz_foo2 = (char*)malloc( i_level * 4 + 3 + strlen( psz_format ) );
 155     strncpy( psz_foo2, psz_foo, 4 * i_level );
 156     psz_foo2[ 4 * i_level ] = '+';
 157     psz_foo2[ 4 * i_level + 1 ] = ' ';
 158     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 159     msg_GenericVa( &demuxer,VLC_MSG_DBG, "mkv", psz_foo2, args );
 160     free( psz_foo2 );
 161     va_end( args );
 162 }
 163
 164
 165 /*****************************************************************************
 166  * ParseTrackEntry:
 167  *****************************************************************************/
 168 void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
 169 {
 170     bool bSupported = true;
 171
 172     /* Init the track */
 173     mkv_track_t *tk = new mkv_track_t();
 174     memset( tk, 0, sizeof( mkv_track_t ) );
 175
 176     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
 177     tk->fmt.psz_language       = strdup("English");
 178     tk->fmt.psz_description    = NULL;
 179
 180     tk->b_default              = true;
 181     tk->b_enabled              = true;
 182     tk->b_forced               = false;
 183     tk->b_silent               = false;
 184     tk->i_number               = tracks.size() - 1;
 185     tk->i_extra_data           = 0;
 186     tk->p_extra_data           = NULL;
 187     tk->psz_codec              = NULL;
 188     tk->b_dts_only             = false;
 189     tk->i_default_duration     = 0;
 190     tk->f_timecodescale        = 1.0;
 191
 192     tk->b_inited               = false;
 193     tk->i_data_init            = 0;
 194     tk->p_data_init            = NULL;
 195
 196     tk->psz_codec_name         = NULL;
 197     tk->psz_codec_settings     = NULL;
 198     tk->psz_codec_info_url     = NULL;
 199     tk->psz_codec_download_url = NULL;
 200
 201     tk->i_compression_type     = MATROSKA_COMPRESSION_NONE;
 202     tk->p_compression_data     = NULL;
 203
 204     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
 205
 206     for( size_t i = 0; i < m->ListSize(); i++ )
 207     {
 208         EbmlElement *l = (*m)[i];
 209
 210         if( MKV_IS_ID( l, KaxTrackNumber ) )
 211         {
 212             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
 213
 214             tk->i_number = uint32( tnum );
 215             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
 216         }
 217         else  if( MKV_IS_ID( l, KaxTrackUID ) )
 218         {
 219             KaxTrackUID &tuid = *(KaxTrackUID*)l;
 220
 221             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
 222         }
 223         else  if( MKV_IS_ID( l, KaxTrackType ) )
 224         {
 225             const char *psz_type;
 226             KaxTrackType &ttype = *(KaxTrackType*)l;
 227
 228             switch( uint8(ttype) )
 229             {
 230                 case track_audio:
 231                     psz_type = "audio";
 232                     tk->fmt.i_cat = AUDIO_ES;
 233                     break;
 234                 case track_video:
 235                     psz_type = "video";
 236                     tk->fmt.i_cat = VIDEO_ES;
 237                     break;
 238                 case track_subtitle:
 239                     psz_type = "subtitle";
 240                     tk->fmt.i_cat = SPU_ES;
 241                     break;
 242                 case track_buttons:
 243                     psz_type = "buttons";
 244                     tk->fmt.i_cat = SPU_ES;
 245                     break;
 246                 default:
 247                     psz_type = "unknown";
 248                     tk->fmt.i_cat = UNKNOWN_ES;
 249                     break;
 250             }
 251
 252             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
 253         }
 254         else  if( MKV_IS_ID( l, KaxTrackFlagEnabled ) ) // UNUSED
 255         {
 256             KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
 257
 258             tk->b_enabled = uint32( fenb );
 259             msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u", uint32( fenb ) );
 260         }
 261         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
 262         {
 263             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
 264
 265             tk->b_default = uint32( fdef );
 266             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef ) );
 267         }
 268         else  if( MKV_IS_ID( l, KaxTrackFlagForced ) ) // UNUSED
 269         {
 270             KaxTrackFlagForced &ffor = *(KaxTrackFlagForced*)l;
 271             tk->b_forced = uint32( ffor );
 272
 273             msg_Dbg( &sys.demuxer, "|   |   |   + Track Forced=%u", uint32( ffor ) );
 274         }
 275         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) ) // UNUSED
 276         {
 277             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
 278
 279             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
 280         }
 281         else  if( MKV_IS_ID( l, KaxTrackMinCache ) ) // UNUSED
 282         {
 283             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
 284
 285             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
 286         }
 287         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) ) // UNUSED
 288         {
 289             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
 290
 291             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
 292         }
 293         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
 294         {
 295             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
 296
 297             tk->i_default_duration = uint64(defd);
 298             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration=%"PRId64, uint64(defd) );
 299         }
 300         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
 301         {
 302             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
 303
 304             tk->f_timecodescale = float( ttcs );
 305             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
 306         }
 307         else  if( MKV_IS_ID( l, KaxMaxBlockAdditionID ) ) // UNUSED
 308         {
 309             KaxMaxBlockAdditionID &mbl = *(KaxMaxBlockAdditionID*)l;
 310
 311             msg_Dbg( &sys.demuxer, "|   |   |   + Track Max BlockAdditionID=%d", uint32( mbl ) );
 312         }
 313         else if( MKV_IS_ID( l, KaxTrackName ) )
 314         {
 315             KaxTrackName &tname = *(KaxTrackName*)l;
 316
 317             tk->fmt.psz_description = ToUTF8( UTFstring( tname ) );
 318             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
 319         }
 320         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
 321         {
 322             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
 323
 324             free( tk->fmt.psz_language );
 325             tk->fmt.psz_language = strdup( string( lang ).c_str() );
 326             msg_Dbg( &sys.demuxer,
 327                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
 328         }
 329         else  if( MKV_IS_ID( l, KaxCodecID ) )
 330         {
 331             KaxCodecID &codecid = *(KaxCodecID*)l;
 332
 333             tk->psz_codec = strdup( string( codecid ).c_str() );
 334             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
 335         }
 336         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
 337         {
 338             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
 339
 340             tk->i_extra_data = cpriv.GetSize();
 341             if( tk->i_extra_data > 0 )
 342             {
 343                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
 344                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
 345             }
 346             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size=%"PRId64, cpriv.GetSize() );
 347         }
 348         else if( MKV_IS_ID( l, KaxCodecName ) )
 349         {
 350             KaxCodecName &cname = *(KaxCodecName*)l;
 351
 352             tk->psz_codec_name = ToUTF8( UTFstring( cname ) );
 353             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
 354         }
 355         //AttachmentLink
 356         else if( MKV_IS_ID( l, KaxCodecDecodeAll ) ) // UNUSED
 357         {
 358             KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
 359
 360             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u", uint8( cdall ) );
 361         }
 362         else if( MKV_IS_ID( l, KaxTrackOverlay ) ) // UNUSED
 363         {
 364             KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
 365
 366             msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u", uint32( tovr ) );
 367         }
 368         else if( MKV_IS_ID( l, KaxContentEncodings ) )
 369         {
 370             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
 371             MkvTree( sys.demuxer, 3, "Content Encodings" );
 372             if ( cencs->ListSize() > 1 )
 373             {
 374                 msg_Err( &sys.demuxer, "Multiple Compression method not supported" );
 375                 bSupported = false;
 376             }
 377             for( size_t j = 0; j < cencs->ListSize(); j++ )
 378             {
 379                 EbmlElement *l2 = (*cencs)[j];
 380                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
 381                 {
 382                     MkvTree( sys.demuxer, 4, "Content Encoding" );
 383                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
 384                     for( size_t k = 0; k < cenc->ListSize(); k++ )
 385                     {
 386                         EbmlElement *l3 = (*cenc)[k];
 387                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
 388                         {
 389                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
 390                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
 391                         }
 392                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
 393                         {
 394                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
 395                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
 396                         }
 397                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
 398                         {
 399                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
 400                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
 401                         }
 402                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
 403                         {
 404                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
 405                             MkvTree( sys.demuxer, 5, "Content Compression" );
 406                             //Default compression type is 0 (Zlib)
 407                             tk->i_compression_type = MATROSKA_COMPRESSION_ZLIB;
 408                             for( size_t n = 0; n < compr->ListSize(); n++ )
 409                             {
 410                                 EbmlElement *l4 = (*compr)[n];
 411                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
 412                                 {
 413                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
 414                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
 415                                     tk->i_compression_type = uint32( compalg );
 416                                     if ( ( tk->i_compression_type != MATROSKA_COMPRESSION_ZLIB ) &&
 417                                          ( tk->i_compression_type != MATROSKA_COMPRESSION_HEADER ) )
 418                                     {
 419                                         msg_Err( &sys.demuxer, "Track Compression method %d not supported", tk->i_compression_type );
 420                                         bSupported = false;
 421                                     }
 422                                 }
 423                                 else if( MKV_IS_ID( l4, KaxContentCompSettings ) )
 424                                 {
 425                                     tk->p_compression_data = new KaxContentCompSettings( *(KaxContentCompSettings*)l4 );
 426                                 }
 427                                 else
 428                                 {
 429                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
 430                                 }
 431                             }
 432                         }
 433                         // ContentEncryption Unsupported
 434                         else
 435                         {
 436                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
 437                         }
 438                     }
 439                 }
 440                 else
 441                 {
 442                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
 443                 }
 444             }
 445         }
 446 //        else if( MKV_IS_ID( l, KaxCodecSettings) ) DEPRECATED by matroska
 447 //        {
 448 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
 449
 450 //            tk->psz_codec_settings = ToUTF8( UTFstring( cset ) );
 451 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
 452 //        }
 453 //        else if( MKV_IS_ID( l, KaxCodecInfoURL) ) DEPRECATED by matroska
 454 //        {
 455 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
 456
 457 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
 458 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
 459 //        }
 460 //        else if( MKV_IS_ID( l, KaxCodecDownloadURL) ) DEPRECATED by matroska
 461 //        {
 462 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
 463
 464 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
 465 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
 466 //        }
 467         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
 468         {
 469             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
 470             unsigned int i_crop_right = 0, i_crop_left = 0, i_crop_top = 0, i_crop_bottom = 0;
 471             unsigned int i_display_unit = 0, i_display_width = 0, i_display_height = 0;
 472
 473             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
 474             tk->f_fps = 0.0;
 475
 476             tk->fmt.video.i_frame_rate_base = (unsigned int)(tk->i_default_duration / 1000);
 477             tk->fmt.video.i_frame_rate = 1000000;
 478
 479             for( unsigned int j = 0; j < tkv->ListSize(); j++ )
 480             {
 481                 EbmlElement *l = (*tkv)[j];
 482                 if( MKV_IS_ID( l, KaxVideoFlagInterlaced ) ) // UNUSED
 483                 {
 484                     KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)l;
 485
 486                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
 487                 }
 488                 else if( MKV_IS_ID( l, KaxVideoStereoMode ) ) // UNUSED
 489                 {
 490                     KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)l;
 491
 492                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
 493                 }
 494                 else if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
 495                 {
 496                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
 497
 498                     tk->fmt.video.i_width += uint16( vwidth );
 499                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
 500                 }
 501                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
 502                 {
 503                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
 504
 505                     tk->fmt.video.i_height += uint16( vheight );
 506                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
 507                 }
 508                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
 509                 {
 510                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
 511
 512                     i_display_width = uint16( vwidth );
 513                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
 514                 }
 515                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
 516                 {
 517                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
 518
 519                     i_display_height = uint16( vheight );
 520                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
 521                 }
 522                 else if( MKV_IS_ID( l, KaxVideoPixelCropBottom ) )
 523                 {
 524                     KaxVideoPixelCropBottom &cropval = *(KaxVideoPixelCropBottom*)l;
 525
 526                     i_crop_bottom = uint16( cropval );
 527                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel bottom=%d", uint16( cropval ) );
 528                 }
 529                 else if( MKV_IS_ID( l, KaxVideoPixelCropTop ) )
 530                 {
 531                     KaxVideoPixelCropTop &cropval = *(KaxVideoPixelCropTop*)l;
 532
 533                     i_crop_top = uint16( cropval );
 534                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel top=%d", uint16( cropval ) );
 535                 }
 536                 else if( MKV_IS_ID( l, KaxVideoPixelCropRight ) )
 537                 {
 538                     KaxVideoPixelCropRight &cropval = *(KaxVideoPixelCropRight*)l;
 539
 540                     i_crop_right = uint16( cropval );
 541                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel right=%d", uint16( cropval ) );
 542                 }
 543                 else if( MKV_IS_ID( l, KaxVideoPixelCropLeft ) )
 544                 {
 545                     KaxVideoPixelCropLeft &cropval = *(KaxVideoPixelCropLeft*)l;
 546
 547                     i_crop_left = uint16( cropval );
 548                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel left=%d", uint16( cropval ) );
 549                 }
 550                 else if( MKV_IS_ID( l, KaxVideoDisplayUnit ) )
 551                 {
 552                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
 553
 554                     i_display_unit = uint8( vdmode );
 555                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
 556                              i_display_unit == 0 ? "pixels" : ( i_display_unit == 1 ? "centimeters": "inches" ) );
 557                 }
 558                 else if( MKV_IS_ID( l, KaxVideoAspectRatio ) ) // UNUSED
 559                 {
 560                     KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
 561
 562                     msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
 563                 }
 564                 // ColourSpace UNUSED
 565                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
 566                 {
 567                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
 568
 569                     tk->f_fps = float( vfps );
 570                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
 571                 }
 572 //                else if( MKV_IS_ID( l, KaxVideoGamma) ) //DEPRECATED by Matroska
 573 //                {
 574 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
 575
 576 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + gamma=%f", float( gamma ) );
 577 //                }
 578                 else
 579                 {
 580                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 581                 }
 582             }
 583             if( i_display_height && i_display_width )
 584             {
 585                 tk->fmt.video.i_sar_num = i_display_width  * tk->fmt.video.i_height;
 586                 tk->fmt.video.i_sar_den = i_display_height * tk->fmt.video.i_width;
 587             }
 588             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 589             {
 590                 tk->fmt.video.i_visible_width   = tk->fmt.video.i_width;
 591                 tk->fmt.video.i_visible_height  = tk->fmt.video.i_height;
 592                 tk->fmt.video.i_x_offset        = i_crop_left;
 593                 tk->fmt.video.i_y_offset        = i_crop_top;
 594                 tk->fmt.video.i_visible_width  -= i_crop_left + i_crop_right;
 595                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 596             }
 597             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 598                we do not support this atm */
 599         }
 600         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 601         {
 602             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 603
 604             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 605
 606             for( unsigned int j = 0; j < tka->ListSize(); j++ )
 607             {
 608                 EbmlElement *l = (*tka)[j];
 609
 610                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 611                 {
 612                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 613
 614                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 615                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 616                 }
 617                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 618                 {
 619                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 620
 621                     tk->fmt.audio.i_rate = (int)float( afreq );
 622                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 623                 }
 624                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 625                 {
 626                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 627
 628                     tk->fmt.audio.i_channels = uint8( achan );
 629                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 630                 }
 631                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 632                 {
 633                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 634
 635                     tk->fmt.audio.i_bitspersample = uint8( abits );
 636                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 637                 }
 638                 else
 639                 {
 640                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 641                 }
 642             }
 643         }
 644         else
 645         {
 646             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 647                      typeid(*l).name() );
 648         }
 649     }
 650
 651     if ( bSupported )
 652     {
 653         tracks.push_back( tk );
 654     }
 655     else
 656     {
 657         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 658         delete tk;
 659     }
 660 }
 661
 662 /*****************************************************************************
 663  * ParseTracks:
 664  *****************************************************************************/
 665 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 666 {
 667     EbmlElement *el;
 668     int i_upper_level = 0;
 669
 670     /* Master elements */
 671     tracks->Read( es, EBML_CONTEXT(tracks), i_upper_level, el, true );
 672
 673     for( size_t i = 0; i < tracks->ListSize(); i++ )
 674     {
 675         EbmlElement *l = (*tracks)[i];
 676
 677         if( MKV_IS_ID( l, KaxTrackEntry ) )
 678         {
 679             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 680         }
 681         else
 682         {
 683             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 684         }
 685     }
 686 }
 687
 688 /*****************************************************************************
 689  * ParseInfo:
 690  *****************************************************************************/
 691 void matroska_segment_c::ParseInfo( KaxInfo *info )
 692 {
 693     EbmlElement *el;
 694     EbmlMaster  *m;
 695     int i_upper_level = 0;
 696
 697     /* Master elements */
 698     m = static_cast<EbmlMaster *>(info);
 699     m->Read( es, EBML_CONTEXT(info), i_upper_level, el, true );
 700
 701     for( size_t i = 0; i < m->ListSize(); i++ )
 702     {
 703         EbmlElement *l = (*m)[i];
 704
 705         if( MKV_IS_ID( l, KaxSegmentUID ) )
 706         {
 707             if ( p_segment_uid == NULL )
 708                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 709
 710             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 711         }
 712         else if( MKV_IS_ID( l, KaxPrevUID ) )
 713         {
 714             if ( p_prev_segment_uid == NULL )
 715             {
 716                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 717                 b_ref_external_segments = true;
 718             }
 719
 720             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 721         }
 722         else if( MKV_IS_ID( l, KaxNextUID ) )
 723         {
 724             if ( p_next_segment_uid == NULL )
 725             {
 726                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 727                 b_ref_external_segments = true;
 728             }
 729
 730             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 731         }
 732         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 733         {
 734             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 735
 736             i_timescale = uint64(tcs);
 737
 738             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 739                      i_timescale );
 740         }
 741         else if( MKV_IS_ID( l, KaxDuration ) )
 742         {
 743             KaxDuration &dur = *(KaxDuration*)l;
 744
 745             i_duration = mtime_t( double( dur ) );
 746
 747             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 748                      i_duration );
 749         }
 750         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 751         {
 752             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 753
 754             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 755
 756             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 757                      psz_muxing_application );
 758         }
 759         else if( MKV_IS_ID( l, KaxWritingApp ) )
 760         {
 761             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 762
 763             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 764
 765             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 766                      psz_writing_application );
 767         }
 768         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 769         {
 770             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 771
 772             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 773
 774             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 775                      psz_segment_filename );
 776         }
 777         else if( MKV_IS_ID( l, KaxTitle ) )
 778         {
 779             KaxTitle &title = *(KaxTitle*)l;
 780
 781             psz_title = ToUTF8( UTFstring( title ) );
 782
 783             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 784         }
 785         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 786         {
 787             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 788
 789             families.push_back( new KaxSegmentFamily(*uid) );
 790
 791             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 792         }
 793         else if( MKV_IS_ID( l, KaxDateUTC ) )
 794         {
 795             KaxDateUTC &date = *(KaxDateUTC*)l;
 796             time_t i_date;
 797             struct tm tmres;
 798             char   buffer[25];
 799
 800             i_date = date.GetEpochDate();
 801             if( gmtime_r( &i_date, &tmres ) &&
 802                 strftime( buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y",
 803                           &tmres ) )
 804             {
 805                 psz_date_utc = strdup( buffer );
 806                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", buffer );
 807             }
 808         }
 809         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 810         {
 811             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 812             chapter_translation_c *p_translate = new chapter_translation_c();
 813
 814             p_trans->Read( es, EBML_CONTEXT(p_trans), i_upper_level, el, true );
 815             for( size_t j = 0; j < p_trans->ListSize(); j++ )
 816             {
 817                 EbmlElement *l = (*p_trans)[j];
 818
 819                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 820                 {
 821                     p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 822                 }
 823                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 824                 {
 825                     p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 826                 }
 827                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 828                 {
 829                     p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 830                 }
 831             }
 832
 833             translations.push_back( p_translate );
 834         }
 835         else
 836         {
 837             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 838         }
 839     }
 840
 841     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 842     i_duration = mtime_t(f_dur);
 843     if( !i_duration ) i_duration = -1;
 844 }
 845
 846
 847 /*****************************************************************************
 848  * ParseChapterAtom
 849  *****************************************************************************/
 850 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 851 {
 852     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 853     for( size_t i = 0; i < ca->ListSize(); i++ )
 854     {
 855         EbmlElement *l = (*ca)[i];
 856
 857         if( MKV_IS_ID( l, KaxChapterUID ) )
 858         {
 859             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 860             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %"PRIu64"", chapters.i_uid );
 861         }
 862         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 863         {
 864             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 865             chapters.b_display_seekpoint = uint8( flag ) == 0;
 866
 867             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 868         }
 869         else if( MKV_IS_ID( l, KaxChapterSegmentUID ) )
 870         {
 871             chapters.p_segment_uid = new KaxChapterSegmentUID( *static_cast<KaxChapterSegmentUID*>(l) );
 872             b_ref_external_segments = true;
 873             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentUID= %u", *(uint32*)chapters.p_segment_uid->GetBuffer() );
 874         }
 875         else if( MKV_IS_ID( l, KaxChapterSegmentEditionUID ) )
 876         {
 877             chapters.p_segment_edition_uid = new KaxChapterSegmentEditionUID( *static_cast<KaxChapterSegmentEditionUID*>(l) );
 878             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentEditionUID= %u",
 879 #if LIBMATROSKA_VERSION < 0x010300
 880             *(uint32*)chapters.p_segment_edition_uid->GetBuffer()
 881 #else
 882             *(uint32*)chapters.p_segment_edition_uid
 883 #endif
 884             );
 885         }
 886         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
 887         {
 888             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
 889             chapters.i_start_time = uint64( start ) / INT64_C(1000);
 890
 891             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %"PRId64"", chapters.i_start_time );
 892         }
 893         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
 894         {
 895             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
 896             chapters.i_end_time = uint64( end ) / INT64_C(1000);
 897
 898             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %"PRId64"", chapters.i_end_time );
 899         }
 900         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
 901         {
 902             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
 903
 904             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
 905             for( size_t j = 0; j < cd->ListSize(); j++ )
 906             {
 907                 EbmlElement *l= (*cd)[j];
 908
 909                 if( MKV_IS_ID( l, KaxChapterString ) )
 910                 {
 911                     KaxChapterString &name =*(KaxChapterString*)l;
 912                     for ( int k = 0; k < i_level; k++)
 913                         chapters.psz_name += '+';
 914                     chapters.psz_name += ' ';
 915                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
 916                     chapters.psz_name += psz_tmp_utf8;
 917                     chapters.b_user_display = true;
 918
 919                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
 920                     free( psz_tmp_utf8 );
 921                 }
 922                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
 923                 {
 924                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
 925                     const char *psz = string( lang ).c_str();
 926
 927                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
 928                 }
 929                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
 930                 {
 931                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
 932                     const char *psz = string( ct ).c_str();
 933
 934                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
 935                 }
 936             }
 937         }
 938         else if( MKV_IS_ID( l, KaxChapterProcess ) )
 939         {
 940             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
 941
 942             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
 943             chapter_codec_cmds_c *p_ccodec = NULL;
 944
 945             for( size_t j = 0; j < cp->ListSize(); j++ )
 946             {
 947                 EbmlElement *k= (*cp)[j];
 948
 949                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
 950                 {
 951                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
 952                     if ( uint32(*p_codec_id) == 0 )
 953                         p_ccodec = new matroska_script_codec_c( sys );
 954                     else if ( uint32(*p_codec_id) == 1 )
 955                         p_ccodec = new dvd_chapter_codec_c( sys );
 956                     break;
 957                 }
 958             }
 959
 960             if ( p_ccodec != NULL )
 961             {
 962                 for( size_t j = 0; j < cp->ListSize(); j++ )
 963                 {
 964                     EbmlElement *k= (*cp)[j];
 965
 966                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
 967                     {
 968                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
 969                         p_ccodec->SetPrivate( *p_private );
 970                     }
 971                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
 972                     {
 973                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
 974                     }
 975                 }
 976                 chapters.codecs.push_back( p_ccodec );
 977             }
 978         }
 979         else if( MKV_IS_ID( l, KaxChapterAtom ) )
 980         {
 981             chapter_item_c *new_sub_chapter = new chapter_item_c();
 982             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
 983             new_sub_chapter->p_parent = &chapters;
 984             chapters.sub_chapters.push_back( new_sub_chapter );
 985         }
 986     }
 987 }
 988
 989 /*****************************************************************************
 990  * ParseAttachments:
 991  *****************************************************************************/
 992 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
 993 {
 994     EbmlElement *el;
 995     int i_upper_level = 0;
 996
 997     attachments->Read( es, EBML_CONTEXT(attachments), i_upper_level, el, true );
 998
 999     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
1000
1001     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
1002     {
1003         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
1004         attachment_c *new_attachment = new attachment_c( ToUTF8( UTFstring( GetChild<KaxFileName>( *attachedFile ) ) ),
1005                                                         GetChild<KaxMimeType>( *attachedFile ),
1006                                                         img_data.GetSize() );
1007
1008         msg_Dbg( &sys.demuxer, "|   |   - %s (%s)", new_attachment->fileName(), new_attachment->mimeType() );
1009
1010         if( new_attachment->init() )
1011         {
1012              memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
1013              sys.stored_attachments.push_back( new_attachment );
1014              if( !strncmp( new_attachment->mimeType(), "image/", 6 ) )
1015              {
1016                  char *psz_url;
1017                  if( asprintf( &psz_url, "attachment://%s",
1018                              new_attachment->fileName() ) == -1 )
1019                      continue;
1020                  if( !sys.meta )
1021                      sys.meta = vlc_meta_New();
1022                  vlc_meta_SetArtURL( sys.meta, psz_url );
1023                  free( psz_url );
1024              }
1025         }
1026         else
1027         {
1028             delete new_attachment;
1029         }
1030
1031         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
1032     }
1033 }
1034
1035 /*****************************************************************************
1036  * ParseChapters:
1037  *****************************************************************************/
1038 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
1039 {
1040     EbmlElement *el;
1041     int i_upper_level = 0;
1042
1043     /* Master elements */
1044     chapters->Read( es, EBML_CONTEXT(chapters), i_upper_level, el, true );
1045
1046     for( size_t i = 0; i < chapters->ListSize(); i++ )
1047     {
1048         EbmlElement *l = (*chapters)[i];
1049
1050         if( MKV_IS_ID( l, KaxEditionEntry ) )
1051         {
1052             chapter_edition_c *p_edition = new chapter_edition_c();
1053
1054             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1055             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1056             for( size_t j = 0; j < E->ListSize(); j++ )
1057             {
1058                 EbmlElement *l = (*E)[j];
1059
1060                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1061                 {
1062                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1063                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1064                     p_edition->sub_chapters.push_back( new_sub_chapter );
1065                 }
1066                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1067                 {
1068                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1069                 }
1070                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1071                 {
1072                     p_edition->b_ordered = var_InheritBool( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1073                 }
1074                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1075                 {
1076                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1077                         i_default_edition = stored_editions.size();
1078                 }
1079                 else if( MKV_IS_ID( l, KaxEditionFlagHidden ) )
1080                 {
1081                     // FIXME to implement
1082                 }
1083                 else
1084                 {
1085                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1086                 }
1087             }
1088             stored_editions.push_back( p_edition );
1089         }
1090         else
1091         {
1092             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1093         }
1094     }
1095 }
1096
1097 void matroska_segment_c::ParseCluster( )
1098 {
1099     EbmlElement *el;
1100     EbmlMaster  *m;
1101     int i_upper_level = 0;
1102
1103     /* Master elements */
1104     m = static_cast<EbmlMaster *>( cluster );
1105     m->Read( es, EBML_CONTEXT(cluster), i_upper_level, el, true );
1106
1107     for( unsigned int i = 0; i < m->ListSize(); i++ )
1108     {
1109         EbmlElement *l = (*m)[i];
1110
1111         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1112         {
1113             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1114
1115             cluster->InitTimecode( uint64( ctc ), i_timescale );
1116             break;
1117         }
1118     }
1119
1120     i_start_time = cluster->GlobalTimecode() / 1000;
1121 }
1122