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 VLC authors and VideoLAN
   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 it
  11  * under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with this program; if not, write to the Free Software Foundation,
  22  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24 #include "mkv.hpp"
  25 #include "matroska_segment.hpp"
  26 #include "chapters.hpp"
  27 #include "demux.hpp"
  28 #include "Ebml_parser.hpp"
  29 #include "util.hpp"
  30
  31 extern "C" {
  32 #include "../vobsub.h"
  33 }
  34
  35 #include <vlc_codecs.h>
  36
  37 /* GetFourCC helper */
  38 #define GetFOURCC( p )  __GetFOURCC( (uint8_t*)p )
  39 static vlc_fourcc_t __GetFOURCC( uint8_t *p )
  40 {
  41     return VLC_FOURCC( p[0], p[1], p[2], p[3] );
  42 }
  43
  44 static inline void fill_extra_data( mkv_track_t *p_tk, unsigned int offset )
  45 {
  46     if(p_tk->i_extra_data <= offset) return;
  47     p_tk->fmt.i_extra = p_tk->i_extra_data - offset;
  48     p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
  49     if(!p_tk->fmt.p_extra) { p_tk->fmt.i_extra = 0; return; };
  50     memcpy( p_tk->fmt.p_extra, p_tk->p_extra_data + offset, p_tk->fmt.i_extra );
  51 }
  52
  53 /*****************************************************************************
  54  * Some functions to manipulate memory
  55  *****************************************************************************/
  56 static inline char * ToUTF8( const UTFstring &u )
  57 {
  58     return strdup( u.GetUTF8().c_str() );
  59 }
  60
  61 /*****************************************************************************
  62  * ParseSeekHead:
  63  *****************************************************************************/
  64 void matroska_segment_c::ParseSeekHead( KaxSeekHead *seekhead )
  65 {
  66     EbmlParser  *ep;
  67     EbmlElement *l;
  68     bool b_seekable;
  69
  70     i_seekhead_count++;
  71
  72     stream_Control( sys.demuxer.s, STREAM_CAN_SEEK, &b_seekable );
  73     if( !b_seekable )
  74         return;
  75
  76     ep = new EbmlParser( &es, seekhead, &sys.demuxer );
  77
  78     while( ( l = ep->Get() ) != NULL )
  79     {
  80         if( MKV_IS_ID( l, KaxSeek ) )
  81         {
  82             EbmlId id = EBML_ID(EbmlVoid);
  83             int64_t i_pos = -1;
  84
  85 #ifdef MKV_DEBUG
  86             msg_Dbg( &sys.demuxer, "|   |   + Seek" );
  87 #endif
  88             ep->Down();
  89             while( ( l = ep->Get() ) != NULL )
  90             {
  91                 if( MKV_IS_ID( l, KaxSeekID ) )
  92                 {
  93                     KaxSeekID &sid = *(KaxSeekID*)l;
  94                     sid.ReadData( es.I_O() );
  95                     id = EbmlId( sid.GetBuffer(), sid.GetSize() );
  96                 }
  97                 else if( MKV_IS_ID( l, KaxSeekPosition ) )
  98                 {
  99                     KaxSeekPosition &spos = *(KaxSeekPosition*)l;
 100                     spos.ReadData( es.I_O() );
 101                     i_pos = (int64_t)segment->GetGlobalPosition( uint64( spos ) );
 102                 }
 103                 else
 104                 {
 105                     /* Many mkvmerge files hit this case. It seems to be a broken SeekHead */
 106                     msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name()  );
 107                 }
 108             }
 109             ep->Up();
 110
 111             if( i_pos >= 0 )
 112             {
 113                 if( id == EBML_ID(KaxCues) )
 114                 {
 115                     msg_Dbg( &sys.demuxer, "|   - cues at %"PRId64, i_pos );
 116                     LoadSeekHeadItem( EBML_INFO(KaxCues), i_pos );
 117                 }
 118                 else if( id == EBML_ID(KaxInfo) )
 119                 {
 120                     msg_Dbg( &sys.demuxer, "|   - info at %"PRId64, i_pos );
 121                     LoadSeekHeadItem( EBML_INFO(KaxInfo), i_pos );
 122                 }
 123                 else if( id == EBML_ID(KaxChapters) )
 124                 {
 125                     msg_Dbg( &sys.demuxer, "|   - chapters at %"PRId64, i_pos );
 126                     LoadSeekHeadItem( EBML_INFO(KaxChapters), i_pos );
 127                 }
 128                 else if( id == EBML_ID(KaxTags) )
 129                 {
 130                     msg_Dbg( &sys.demuxer, "|   - tags at %"PRId64, i_pos );
 131                     LoadSeekHeadItem( EBML_INFO(KaxTags), i_pos );
 132                 }
 133                 else if( id == EBML_ID(KaxSeekHead) )
 134                 {
 135                     msg_Dbg( &sys.demuxer, "|   - chained seekhead at %"PRId64, i_pos );
 136                     LoadSeekHeadItem( EBML_INFO(KaxSeekHead), i_pos );
 137                 }
 138                 else if( id == EBML_ID(KaxTracks) )
 139                 {
 140                     msg_Dbg( &sys.demuxer, "|   - tracks at %"PRId64, i_pos );
 141                     LoadSeekHeadItem( EBML_INFO(KaxTracks), i_pos );
 142                 }
 143                 else if( id == EBML_ID(KaxAttachments) )
 144                 {
 145                     msg_Dbg( &sys.demuxer, "|   - attachments at %"PRId64, i_pos );
 146                     LoadSeekHeadItem( EBML_INFO(KaxAttachments), i_pos );
 147                 }
 148 #ifdef MKV_DEBUG
 149                 else
 150                     msg_Dbg( &sys.demuxer, "|   - unknown seekhead reference at %"PRId64, i_pos );
 151 #endif
 152             }
 153         }
 154         else
 155             msg_Dbg( &sys.demuxer, "|   |   + ParseSeekHead Unknown (%s)", typeid(*l).name() );
 156     }
 157     delete ep;
 158 }
 159
 160
 161 /**
 162  * Helper function to print the mkv parse tree
 163  */
 164 static void MkvTree( demux_t & demuxer, int i_level, const char *psz_format, ... )
 165 {
 166     va_list args;
 167     if( i_level > 9 )
 168     {
 169         msg_Err( &demuxer, "MKV tree is too deep" );
 170         return;
 171     }
 172     va_start( args, psz_format );
 173     static const char psz_foo[] = "|   |   |   |   |   |   |   |   |   |";
 174     char *psz_foo2 = (char*)malloc( i_level * 4 + 3 + strlen( psz_format ) );
 175     strncpy( psz_foo2, psz_foo, 4 * i_level );
 176     psz_foo2[ 4 * i_level ] = '+';
 177     psz_foo2[ 4 * i_level + 1 ] = ' ';
 178     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 179     msg_GenericVa( &demuxer,VLC_MSG_DBG, "mkv", psz_foo2, args );
 180     free( psz_foo2 );
 181     va_end( args );
 182 }
 183
 184
 185 /*****************************************************************************
 186  * ParseTrackEntry:
 187  *****************************************************************************/
 188 void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
 189 {
 190     bool bSupported = true;
 191
 192     /* Init the track */
 193     mkv_track_t *tk = new mkv_track_t();
 194     memset( tk, 0, sizeof( mkv_track_t ) );
 195
 196     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
 197     tk->p_es = NULL;
 198     tk->fmt.psz_language       = strdup("English");
 199     tk->fmt.psz_description    = NULL;
 200
 201     tk->b_default              = true;
 202     tk->b_enabled              = true;
 203     tk->b_forced               = false;
 204     tk->b_silent               = false;
 205     tk->i_number               = tracks.size() - 1;
 206     tk->i_extra_data           = 0;
 207     tk->p_extra_data           = NULL;
 208     tk->psz_codec              = NULL;
 209     tk->b_dts_only             = false;
 210     tk->i_default_duration     = 0;
 211     tk->f_timecodescale        = 1.0;
 212
 213     tk->b_inited               = false;
 214     tk->i_data_init            = 0;
 215     tk->p_data_init            = NULL;
 216
 217     tk->psz_codec_name         = NULL;
 218     tk->psz_codec_settings     = NULL;
 219     tk->psz_codec_info_url     = NULL;
 220     tk->psz_codec_download_url = NULL;
 221
 222     tk->i_compression_type     = MATROSKA_COMPRESSION_NONE;
 223     tk->i_encoding_scope       = MATROSKA_ENCODING_SCOPE_ALL_FRAMES;
 224     tk->p_compression_data     = NULL;
 225
 226     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
 227
 228     for( size_t i = 0; i < m->ListSize(); i++ )
 229     {
 230         EbmlElement *l = (*m)[i];
 231
 232         if( MKV_IS_ID( l, KaxTrackNumber ) )
 233         {
 234             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
 235
 236             tk->i_number = uint32( tnum );
 237             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
 238         }
 239         else  if( MKV_IS_ID( l, KaxTrackUID ) )
 240         {
 241             KaxTrackUID &tuid = *(KaxTrackUID*)l;
 242
 243             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
 244         }
 245         else  if( MKV_IS_ID( l, KaxTrackType ) )
 246         {
 247             const char *psz_type;
 248             KaxTrackType &ttype = *(KaxTrackType*)l;
 249
 250             switch( uint8(ttype) )
 251             {
 252                 case track_audio:
 253                     psz_type = "audio";
 254                     tk->fmt.i_cat = AUDIO_ES;
 255                     tk->fmt.audio.i_channels = 1;
 256                     tk->fmt.audio.i_rate = 8000;
 257                     break;
 258                 case track_video:
 259                     psz_type = "video";
 260                     tk->fmt.i_cat = VIDEO_ES;
 261                     break;
 262                 case track_subtitle:
 263                     psz_type = "subtitle";
 264                     tk->fmt.i_cat = SPU_ES;
 265                     break;
 266                 case track_buttons:
 267                     psz_type = "buttons";
 268                     tk->fmt.i_cat = SPU_ES;
 269                     break;
 270                 default:
 271                     psz_type = "unknown";
 272                     tk->fmt.i_cat = UNKNOWN_ES;
 273                     break;
 274             }
 275
 276             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
 277         }
 278         else  if( MKV_IS_ID( l, KaxTrackFlagEnabled ) ) // UNUSED
 279         {
 280             KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
 281
 282             tk->b_enabled = uint32( fenb );
 283             msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u", uint32( fenb ) );
 284         }
 285         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
 286         {
 287             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
 288
 289             tk->b_default = uint32( fdef );
 290             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef ) );
 291         }
 292         else  if( MKV_IS_ID( l, KaxTrackFlagForced ) ) // UNUSED
 293         {
 294             KaxTrackFlagForced &ffor = *(KaxTrackFlagForced*)l;
 295             tk->b_forced = uint32( ffor );
 296
 297             msg_Dbg( &sys.demuxer, "|   |   |   + Track Forced=%u", uint32( ffor ) );
 298         }
 299         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) ) // UNUSED
 300         {
 301             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
 302
 303             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
 304         }
 305         else  if( MKV_IS_ID( l, KaxTrackMinCache ) ) // UNUSED
 306         {
 307             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
 308
 309             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
 310         }
 311         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) ) // UNUSED
 312         {
 313             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
 314
 315             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
 316         }
 317         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
 318         {
 319             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
 320
 321             tk->i_default_duration = uint64(defd);
 322             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration=%"PRId64, uint64(defd) );
 323         }
 324         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
 325         {
 326             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
 327
 328             tk->f_timecodescale = float( ttcs );
 329             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
 330         }
 331         else  if( MKV_IS_ID( l, KaxMaxBlockAdditionID ) ) // UNUSED
 332         {
 333             KaxMaxBlockAdditionID &mbl = *(KaxMaxBlockAdditionID*)l;
 334
 335             msg_Dbg( &sys.demuxer, "|   |   |   + Track Max BlockAdditionID=%d", uint32( mbl ) );
 336         }
 337         else if( MKV_IS_ID( l, KaxTrackName ) )
 338         {
 339             KaxTrackName &tname = *(KaxTrackName*)l;
 340
 341             tk->fmt.psz_description = ToUTF8( UTFstring( tname ) );
 342             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
 343         }
 344         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
 345         {
 346             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
 347
 348             free( tk->fmt.psz_language );
 349             tk->fmt.psz_language = strdup( string( lang ).c_str() );
 350             msg_Dbg( &sys.demuxer,
 351                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
 352         }
 353         else  if( MKV_IS_ID( l, KaxCodecID ) )
 354         {
 355             KaxCodecID &codecid = *(KaxCodecID*)l;
 356
 357             tk->psz_codec = strdup( string( codecid ).c_str() );
 358             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
 359         }
 360         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
 361         {
 362             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
 363
 364             tk->i_extra_data = cpriv.GetSize();
 365             if( tk->i_extra_data > 0 )
 366             {
 367                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
 368                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
 369             }
 370             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size=%"PRId64, cpriv.GetSize() );
 371         }
 372         else if( MKV_IS_ID( l, KaxCodecName ) )
 373         {
 374             KaxCodecName &cname = *(KaxCodecName*)l;
 375
 376             tk->psz_codec_name = ToUTF8( UTFstring( cname ) );
 377             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
 378         }
 379         //AttachmentLink
 380         else if( MKV_IS_ID( l, KaxCodecDecodeAll ) ) // UNUSED
 381         {
 382             KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
 383
 384             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u", uint8( cdall ) );
 385         }
 386         else if( MKV_IS_ID( l, KaxTrackOverlay ) ) // UNUSED
 387         {
 388             KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
 389
 390             msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u", uint32( tovr ) );
 391         }
 392         else if( MKV_IS_ID( l, KaxContentEncodings ) )
 393         {
 394             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
 395             MkvTree( sys.demuxer, 3, "Content Encodings" );
 396             if ( cencs->ListSize() > 1 )
 397             {
 398                 msg_Err( &sys.demuxer, "Multiple Compression method not supported" );
 399                 bSupported = false;
 400             }
 401             for( size_t j = 0; j < cencs->ListSize(); j++ )
 402             {
 403                 EbmlElement *l2 = (*cencs)[j];
 404                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
 405                 {
 406                     MkvTree( sys.demuxer, 4, "Content Encoding" );
 407                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
 408                     for( size_t k = 0; k < cenc->ListSize(); k++ )
 409                     {
 410                         EbmlElement *l3 = (*cenc)[k];
 411                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
 412                         {
 413                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
 414                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
 415                         }
 416                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
 417                         {
 418                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
 419                             tk->i_encoding_scope = uint32( encscope );
 420                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
 421                         }
 422                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
 423                         {
 424                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
 425                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
 426                         }
 427                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
 428                         {
 429                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
 430                             MkvTree( sys.demuxer, 5, "Content Compression" );
 431                             //Default compression type is 0 (Zlib)
 432                             tk->i_compression_type = MATROSKA_COMPRESSION_ZLIB;
 433                             for( size_t n = 0; n < compr->ListSize(); n++ )
 434                             {
 435                                 EbmlElement *l4 = (*compr)[n];
 436                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
 437                                 {
 438                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
 439                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
 440                                     tk->i_compression_type = uint32( compalg );
 441                                     if ( ( tk->i_compression_type != MATROSKA_COMPRESSION_ZLIB ) &&
 442                                          ( tk->i_compression_type != MATROSKA_COMPRESSION_HEADER ) )
 443                                     {
 444                                         msg_Err( &sys.demuxer, "Track Compression method %d not supported", tk->i_compression_type );
 445                                         bSupported = false;
 446                                     }
 447                                 }
 448                                 else if( MKV_IS_ID( l4, KaxContentCompSettings ) )
 449                                 {
 450                                     tk->p_compression_data = new KaxContentCompSettings( *(KaxContentCompSettings*)l4 );
 451                                 }
 452                                 else
 453                                 {
 454                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
 455                                 }
 456                             }
 457                         }
 458                         // ContentEncryption Unsupported
 459                         else
 460                         {
 461                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
 462                         }
 463                     }
 464                 }
 465                 else
 466                 {
 467                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
 468                 }
 469             }
 470         }
 471 //        else if( MKV_IS_ID( l, KaxCodecSettings) ) DEPRECATED by matroska
 472 //        {
 473 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
 474
 475 //            tk->psz_codec_settings = ToUTF8( UTFstring( cset ) );
 476 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
 477 //        }
 478 //        else if( MKV_IS_ID( l, KaxCodecInfoURL) ) DEPRECATED by matroska
 479 //        {
 480 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
 481
 482 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
 483 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
 484 //        }
 485 //        else if( MKV_IS_ID( l, KaxCodecDownloadURL) ) DEPRECATED by matroska
 486 //        {
 487 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
 488
 489 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
 490 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
 491 //        }
 492         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
 493         {
 494             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
 495             unsigned int i_crop_right = 0, i_crop_left = 0, i_crop_top = 0, i_crop_bottom = 0;
 496             unsigned int i_display_unit = 0, i_display_width = 0, i_display_height = 0;
 497
 498             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
 499             tk->f_fps = 0.0;
 500
 501             tk->fmt.video.i_frame_rate_base = (unsigned int)(tk->i_default_duration / 1000);
 502             tk->fmt.video.i_frame_rate = 1000000;
 503
 504             for( unsigned int j = 0; j < tkv->ListSize(); j++ )
 505             {
 506                 EbmlElement *l = (*tkv)[j];
 507                 if( MKV_IS_ID( l, KaxVideoFlagInterlaced ) ) // UNUSED
 508                 {
 509                     KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)l;
 510
 511                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
 512                 }
 513                 else if( MKV_IS_ID( l, KaxVideoStereoMode ) ) // UNUSED
 514                 {
 515                     KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)l;
 516
 517                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
 518                 }
 519                 else if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
 520                 {
 521                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
 522
 523                     tk->fmt.video.i_width += uint16( vwidth );
 524                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
 525                 }
 526                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
 527                 {
 528                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
 529
 530                     tk->fmt.video.i_height += uint16( vheight );
 531                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
 532                 }
 533                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
 534                 {
 535                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
 536
 537                     i_display_width = uint16( vwidth );
 538                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
 539                 }
 540                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
 541                 {
 542                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
 543
 544                     i_display_height = uint16( vheight );
 545                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
 546                 }
 547                 else if( MKV_IS_ID( l, KaxVideoPixelCropBottom ) )
 548                 {
 549                     KaxVideoPixelCropBottom &cropval = *(KaxVideoPixelCropBottom*)l;
 550
 551                     i_crop_bottom = uint16( cropval );
 552                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel bottom=%d", uint16( cropval ) );
 553                 }
 554                 else if( MKV_IS_ID( l, KaxVideoPixelCropTop ) )
 555                 {
 556                     KaxVideoPixelCropTop &cropval = *(KaxVideoPixelCropTop*)l;
 557
 558                     i_crop_top = uint16( cropval );
 559                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel top=%d", uint16( cropval ) );
 560                 }
 561                 else if( MKV_IS_ID( l, KaxVideoPixelCropRight ) )
 562                 {
 563                     KaxVideoPixelCropRight &cropval = *(KaxVideoPixelCropRight*)l;
 564
 565                     i_crop_right = uint16( cropval );
 566                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel right=%d", uint16( cropval ) );
 567                 }
 568                 else if( MKV_IS_ID( l, KaxVideoPixelCropLeft ) )
 569                 {
 570                     KaxVideoPixelCropLeft &cropval = *(KaxVideoPixelCropLeft*)l;
 571
 572                     i_crop_left = uint16( cropval );
 573                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel left=%d", uint16( cropval ) );
 574                 }
 575                 else if( MKV_IS_ID( l, KaxVideoDisplayUnit ) )
 576                 {
 577                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
 578
 579                     i_display_unit = uint8( vdmode );
 580                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
 581                              i_display_unit == 0 ? "pixels" : ( i_display_unit == 1 ? "centimeters": "inches" ) );
 582                 }
 583                 else if( MKV_IS_ID( l, KaxVideoAspectRatio ) ) // UNUSED
 584                 {
 585                     KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
 586
 587                     msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
 588                 }
 589                 // ColourSpace UNUSED
 590                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
 591                 {
 592                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
 593
 594                     tk->f_fps = float( vfps );
 595                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
 596                 }
 597 //                else if( MKV_IS_ID( l, KaxVideoGamma) ) //DEPRECATED by Matroska
 598 //                {
 599 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
 600
 601 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + gamma=%f", float( gamma ) );
 602 //                }
 603                 else
 604                 {
 605                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 606                 }
 607             }
 608             if( i_display_height && i_display_width )
 609             {
 610                 tk->fmt.video.i_sar_num = i_display_width  * tk->fmt.video.i_height;
 611                 tk->fmt.video.i_sar_den = i_display_height * tk->fmt.video.i_width;
 612             }
 613             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 614             {
 615                 tk->fmt.video.i_visible_width   = tk->fmt.video.i_width;
 616                 tk->fmt.video.i_visible_height  = tk->fmt.video.i_height;
 617                 tk->fmt.video.i_x_offset        = i_crop_left;
 618                 tk->fmt.video.i_y_offset        = i_crop_top;
 619                 tk->fmt.video.i_visible_width  -= i_crop_left + i_crop_right;
 620                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 621             }
 622             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 623                we do not support this atm */
 624         }
 625         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 626         {
 627             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 628
 629             /* Initialize default values */
 630             tk->fmt.audio.i_channels = 1;
 631             tk->fmt.audio.i_rate = 8000;
 632
 633             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 634
 635             for( unsigned int j = 0; j < tka->ListSize(); j++ )
 636             {
 637                 EbmlElement *l = (*tka)[j];
 638
 639                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 640                 {
 641                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 642
 643                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 644                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 645                 }
 646                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 647                 {
 648                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 649
 650                     tk->fmt.audio.i_rate = (int)float( afreq );
 651                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 652                 }
 653                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 654                 {
 655                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 656
 657                     tk->fmt.audio.i_channels = uint8( achan );
 658                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 659                 }
 660                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 661                 {
 662                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 663
 664                     tk->fmt.audio.i_bitspersample = uint8( abits );
 665                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 666                 }
 667                 else
 668                 {
 669                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 670                 }
 671             }
 672         }
 673         else
 674         {
 675             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 676                      typeid(*l).name() );
 677         }
 678     }
 679
 680     if ( bSupported )
 681     {
 682 #ifdef HAVE_ZLIB_H
 683         if( tk->i_compression_type == MATROSKA_COMPRESSION_ZLIB &&
 684             tk->i_encoding_scope & MATROSKA_ENCODING_SCOPE_PRIVATE &&
 685             tk->i_extra_data && tk->p_extra_data &&
 686             zlib_decompress_extra( &sys.demuxer, tk) )
 687             return;
 688 #endif
 689         if( TrackInit( tk ) )
 690         {
 691             msg_Err(&sys.demuxer, "Couldn't init track %d", tk->i_number );
 692             free(tk->p_extra_data);
 693             delete tk;
 694             return;
 695         }
 696
 697         tracks.push_back( tk );
 698     }
 699     else
 700     {
 701         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 702         free(tk->p_extra_data);
 703         delete tk;
 704     }
 705 }
 706
 707 /*****************************************************************************
 708  * ParseTracks:
 709  *****************************************************************************/
 710 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 711 {
 712     EbmlElement *el;
 713     int i_upper_level = 0;
 714
 715     /* Master elements */
 716     tracks->Read( es, EBML_CONTEXT(tracks), i_upper_level, el, true );
 717
 718     for( size_t i = 0; i < tracks->ListSize(); i++ )
 719     {
 720         EbmlElement *l = (*tracks)[i];
 721
 722         if( MKV_IS_ID( l, KaxTrackEntry ) )
 723         {
 724             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 725         }
 726         else
 727         {
 728             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 729         }
 730     }
 731 }
 732
 733 /*****************************************************************************
 734  * ParseInfo:
 735  *****************************************************************************/
 736 void matroska_segment_c::ParseInfo( KaxInfo *info )
 737 {
 738     EbmlElement *el;
 739     EbmlMaster  *m;
 740     int i_upper_level = 0;
 741
 742     /* Master elements */
 743     m = static_cast<EbmlMaster *>(info);
 744     m->Read( es, EBML_CONTEXT(info), i_upper_level, el, true );
 745
 746     for( size_t i = 0; i < m->ListSize(); i++ )
 747     {
 748         EbmlElement *l = (*m)[i];
 749
 750         if( MKV_IS_ID( l, KaxSegmentUID ) )
 751         {
 752             if ( p_segment_uid == NULL )
 753                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 754
 755             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 756         }
 757         else if( MKV_IS_ID( l, KaxPrevUID ) )
 758         {
 759             if ( p_prev_segment_uid == NULL )
 760             {
 761                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 762                 b_ref_external_segments = true;
 763             }
 764
 765             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 766         }
 767         else if( MKV_IS_ID( l, KaxNextUID ) )
 768         {
 769             if ( p_next_segment_uid == NULL )
 770             {
 771                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 772                 b_ref_external_segments = true;
 773             }
 774
 775             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 776         }
 777         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 778         {
 779             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 780
 781             i_timescale = uint64(tcs);
 782
 783             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 784                      i_timescale );
 785         }
 786         else if( MKV_IS_ID( l, KaxDuration ) )
 787         {
 788             KaxDuration &dur = *(KaxDuration*)l;
 789
 790             i_duration = mtime_t( double( dur ) );
 791
 792             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 793                      i_duration );
 794         }
 795         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 796         {
 797             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 798
 799             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 800
 801             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 802                      psz_muxing_application );
 803         }
 804         else if( MKV_IS_ID( l, KaxWritingApp ) )
 805         {
 806             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 807
 808             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 809
 810             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 811                      psz_writing_application );
 812         }
 813         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 814         {
 815             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 816
 817             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 818
 819             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 820                      psz_segment_filename );
 821         }
 822         else if( MKV_IS_ID( l, KaxTitle ) )
 823         {
 824             KaxTitle &title = *(KaxTitle*)l;
 825
 826             psz_title = ToUTF8( UTFstring( title ) );
 827
 828             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 829         }
 830         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 831         {
 832             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 833
 834             families.push_back( new KaxSegmentFamily(*uid) );
 835
 836             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 837         }
 838         else if( MKV_IS_ID( l, KaxDateUTC ) )
 839         {
 840             KaxDateUTC &date = *(KaxDateUTC*)l;
 841             time_t i_date;
 842             struct tm tmres;
 843             char   buffer[25];
 844
 845             i_date = date.GetEpochDate();
 846             if( gmtime_r( &i_date, &tmres ) &&
 847                 strftime( buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y",
 848                           &tmres ) )
 849             {
 850                 psz_date_utc = strdup( buffer );
 851                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", buffer );
 852             }
 853         }
 854         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 855         {
 856             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 857             chapter_translation_c *p_translate = new chapter_translation_c();
 858
 859             p_trans->Read( es, EBML_CONTEXT(p_trans), i_upper_level, el, true );
 860             for( size_t j = 0; j < p_trans->ListSize(); j++ )
 861             {
 862                 EbmlElement *l = (*p_trans)[j];
 863
 864                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 865                 {
 866                     p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 867                 }
 868                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 869                 {
 870                     p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 871                 }
 872                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 873                 {
 874                     p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 875                 }
 876             }
 877
 878             translations.push_back( p_translate );
 879         }
 880         else
 881         {
 882             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 883         }
 884     }
 885
 886     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 887     i_duration = mtime_t(f_dur);
 888     if( !i_duration ) i_duration = -1;
 889 }
 890
 891
 892 /*****************************************************************************
 893  * ParseChapterAtom
 894  *****************************************************************************/
 895 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 896 {
 897     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 898     for( size_t i = 0; i < ca->ListSize(); i++ )
 899     {
 900         EbmlElement *l = (*ca)[i];
 901
 902         if( MKV_IS_ID( l, KaxChapterUID ) )
 903         {
 904             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 905             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %"PRIu64"", chapters.i_uid );
 906         }
 907         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 908         {
 909             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 910             chapters.b_display_seekpoint = uint8( flag ) == 0;
 911
 912             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 913         }
 914         else if( MKV_IS_ID( l, KaxChapterSegmentUID ) )
 915         {
 916             chapters.p_segment_uid = new KaxChapterSegmentUID( *static_cast<KaxChapterSegmentUID*>(l) );
 917             b_ref_external_segments = true;
 918             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentUID= %u", *(uint32*)chapters.p_segment_uid->GetBuffer() );
 919         }
 920         else if( MKV_IS_ID( l, KaxChapterSegmentEditionUID ) )
 921         {
 922             chapters.p_segment_edition_uid = new KaxChapterSegmentEditionUID( *static_cast<KaxChapterSegmentEditionUID*>(l) );
 923             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentEditionUID= %u",
 924 #if LIBMATROSKA_VERSION < 0x010300
 925                      *(uint32*)chapters.p_segment_edition_uid->GetBuffer()
 926 #else
 927                      *(uint32*)chapters.p_segment_edition_uid
 928 #endif
 929                    );
 930         }
 931         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
 932         {
 933             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
 934             chapters.i_start_time = uint64( start ) / INT64_C(1000);
 935
 936             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %"PRId64"", chapters.i_start_time );
 937         }
 938         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
 939         {
 940             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
 941             chapters.i_end_time = uint64( end ) / INT64_C(1000);
 942
 943             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %"PRId64"", chapters.i_end_time );
 944         }
 945         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
 946         {
 947             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
 948
 949             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
 950             for( size_t j = 0; j < cd->ListSize(); j++ )
 951             {
 952                 EbmlElement *l= (*cd)[j];
 953
 954                 if( MKV_IS_ID( l, KaxChapterString ) )
 955                 {
 956                     KaxChapterString &name =*(KaxChapterString*)l;
 957                     for ( int k = 0; k < i_level; k++)
 958                         chapters.psz_name += '+';
 959                     chapters.psz_name += ' ';
 960                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
 961                     chapters.psz_name += psz_tmp_utf8;
 962                     chapters.b_user_display = true;
 963
 964                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
 965                     free( psz_tmp_utf8 );
 966                 }
 967                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
 968                 {
 969                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
 970                     const char *psz = string( lang ).c_str();
 971
 972                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
 973                 }
 974                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
 975                 {
 976                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
 977                     const char *psz = string( ct ).c_str();
 978
 979                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
 980                 }
 981             }
 982         }
 983         else if( MKV_IS_ID( l, KaxChapterProcess ) )
 984         {
 985             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
 986
 987             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
 988             chapter_codec_cmds_c *p_ccodec = NULL;
 989
 990             for( size_t j = 0; j < cp->ListSize(); j++ )
 991             {
 992                 EbmlElement *k= (*cp)[j];
 993
 994                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
 995                 {
 996                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
 997                     if ( uint32(*p_codec_id) == 0 )
 998                         p_ccodec = new matroska_script_codec_c( sys );
 999                     else if ( uint32(*p_codec_id) == 1 )
1000                         p_ccodec = new dvd_chapter_codec_c( sys );
1001                     break;
1002                 }
1003             }
1004
1005             if ( p_ccodec != NULL )
1006             {
1007                 for( size_t j = 0; j < cp->ListSize(); j++ )
1008                 {
1009                     EbmlElement *k= (*cp)[j];
1010
1011                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
1012                     {
1013                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
1014                         p_ccodec->SetPrivate( *p_private );
1015                     }
1016                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
1017                     {
1018                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
1019                     }
1020                 }
1021                 chapters.codecs.push_back( p_ccodec );
1022             }
1023         }
1024         else if( MKV_IS_ID( l, KaxChapterAtom ) )
1025         {
1026             chapter_item_c *new_sub_chapter = new chapter_item_c();
1027             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1028             new_sub_chapter->p_parent = &chapters;
1029             chapters.sub_chapters.push_back( new_sub_chapter );
1030         }
1031     }
1032 }
1033
1034 /*****************************************************************************
1035  * ParseAttachments:
1036  *****************************************************************************/
1037 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
1038 {
1039     EbmlElement *el;
1040     int i_upper_level = 0;
1041
1042     attachments->Read( es, EBML_CONTEXT(attachments), i_upper_level, el, true );
1043
1044     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
1045
1046     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
1047     {
1048         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
1049         char *psz_tmp_utf8 =  ToUTF8( UTFstring( GetChild<KaxFileName>( *attachedFile ) ) );
1050         std::string attached_filename(psz_tmp_utf8);
1051         free(psz_tmp_utf8);
1052         attachment_c *new_attachment = new attachment_c( attached_filename,
1053                                                          GetChild<KaxMimeType>( *attachedFile ),
1054                                                          img_data.GetSize() );
1055
1056         msg_Dbg( &sys.demuxer, "|   |   - %s (%s)", new_attachment->fileName(), new_attachment->mimeType() );
1057
1058         if( new_attachment->init() )
1059         {
1060             memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
1061             sys.stored_attachments.push_back( new_attachment );
1062             if( !strncmp( new_attachment->mimeType(), "image/", 6 ) )
1063             {
1064                 char *psz_url;
1065                 if( asprintf( &psz_url, "attachment://%s",
1066                               new_attachment->fileName() ) == -1 )
1067                     continue;
1068                 if( !sys.meta )
1069                     sys.meta = vlc_meta_New();
1070                 vlc_meta_SetArtURL( sys.meta, psz_url );
1071                 free( psz_url );
1072             }
1073         }
1074         else
1075         {
1076             delete new_attachment;
1077         }
1078
1079         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
1080     }
1081 }
1082
1083 /*****************************************************************************
1084  * ParseChapters:
1085  *****************************************************************************/
1086 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
1087 {
1088     EbmlElement *el;
1089     int i_upper_level = 0;
1090
1091     /* Master elements */
1092     chapters->Read( es, EBML_CONTEXT(chapters), i_upper_level, el, true );
1093
1094     for( size_t i = 0; i < chapters->ListSize(); i++ )
1095     {
1096         EbmlElement *l = (*chapters)[i];
1097
1098         if( MKV_IS_ID( l, KaxEditionEntry ) )
1099         {
1100             chapter_edition_c *p_edition = new chapter_edition_c();
1101
1102             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1103             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1104             for( size_t j = 0; j < E->ListSize(); j++ )
1105             {
1106                 EbmlElement *l = (*E)[j];
1107
1108                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1109                 {
1110                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1111                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1112                     p_edition->sub_chapters.push_back( new_sub_chapter );
1113                 }
1114                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1115                 {
1116                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1117                 }
1118                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1119                 {
1120                     p_edition->b_ordered = var_InheritBool( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1121                 }
1122                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1123                 {
1124                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1125                         i_default_edition = stored_editions.size();
1126                 }
1127                 else if( MKV_IS_ID( l, KaxEditionFlagHidden ) )
1128                 {
1129                     // FIXME to implement
1130                 }
1131                 else
1132                 {
1133                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1134                 }
1135             }
1136             stored_editions.push_back( p_edition );
1137         }
1138         else
1139         {
1140             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1141         }
1142     }
1143 }
1144
1145 void matroska_segment_c::ParseCluster( bool b_update_start_time )
1146 {
1147     EbmlElement *el;
1148     EbmlMaster  *m;
1149     int i_upper_level = 0;
1150
1151     /* Master elements */
1152     m = static_cast<EbmlMaster *>( cluster );
1153     m->Read( es, EBML_CONTEXT(cluster), i_upper_level, el, true );
1154
1155     for( unsigned int i = 0; i < m->ListSize(); i++ )
1156     {
1157         EbmlElement *l = (*m)[i];
1158
1159         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1160         {
1161             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1162
1163             cluster->InitTimecode( uint64( ctc ), i_timescale );
1164             break;
1165         }
1166     }
1167
1168     if( b_update_start_time )
1169         i_start_time = cluster->GlobalTimecode() / 1000;
1170 }
1171
1172
1173 int32_t matroska_segment_c::TrackInit( mkv_track_t * p_tk )
1174 {
1175     es_format_t *p_fmt = &p_tk->fmt;
1176     if( !strcmp( p_tk->psz_codec, "V_MS/VFW/FOURCC" ) )
1177     {
1178         if( p_tk->i_extra_data < (int)sizeof( VLC_BITMAPINFOHEADER ) )
1179         {
1180             msg_Err( &sys.demuxer, "missing/invalid VLC_BITMAPINFOHEADER" );
1181             p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1182         }
1183         else
1184         {
1185             VLC_BITMAPINFOHEADER *p_bih = (VLC_BITMAPINFOHEADER*)p_tk->p_extra_data;
1186
1187             p_tk->fmt.video.i_width = GetDWLE( &p_bih->biWidth );
1188             p_tk->fmt.video.i_height= GetDWLE( &p_bih->biHeight );
1189             p_tk->fmt.i_codec       = GetFOURCC( &p_bih->biCompression );
1190
1191             p_tk->fmt.i_extra       = GetDWLE( &p_bih->biSize ) - sizeof( VLC_BITMAPINFOHEADER );
1192             if( p_tk->fmt.i_extra > 0 )
1193             {
1194                 /* Very unlikely yet possible: bug #5659*/
1195                 size_t maxlen = p_tk->i_extra_data - sizeof( VLC_BITMAPINFOHEADER );
1196                 p_tk->fmt.i_extra = ( (unsigned)p_tk->fmt.i_extra < maxlen )?
1197                     p_tk->fmt.i_extra : maxlen;
1198
1199                 p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1200                 memcpy( p_tk->fmt.p_extra, &p_bih[1], p_tk->fmt.i_extra );
1201             }
1202         }
1203         p_tk->b_dts_only = true;
1204     }
1205     else if( !strcmp( p_tk->psz_codec, "V_MPEG1" ) ||
1206              !strcmp( p_tk->psz_codec, "V_MPEG2" ) )
1207     {
1208         p_tk->fmt.i_codec = VLC_CODEC_MPGV;
1209         if( p_tk->i_extra_data )
1210             fill_extra_data( p_tk, 0 );
1211     }
1212     else if( !strncmp( p_tk->psz_codec, "V_THEORA", 8 ) )
1213     {
1214         p_tk->fmt.i_codec = VLC_CODEC_THEORA;
1215         fill_extra_data( p_tk, 0 );
1216         p_tk->b_pts_only = true;
1217     }
1218     else if( !strncmp( p_tk->psz_codec, "V_REAL/RV", 9 ) )
1219     {
1220         uint8_t *p = p_tk->p_extra_data;
1221
1222         if( !strcmp( p_tk->psz_codec, "V_REAL/RV10" ) )
1223             p_fmt->i_codec = VLC_CODEC_RV10;
1224         else if( !strcmp( p_tk->psz_codec, "V_REAL/RV20" ) )
1225             p_fmt->i_codec = VLC_CODEC_RV20;
1226         else if( !strcmp( p_tk->psz_codec, "V_REAL/RV30" ) )
1227             p_fmt->i_codec = VLC_CODEC_RV30;
1228         else if( !strcmp( p_tk->psz_codec, "V_REAL/RV40" ) )
1229             p_fmt->i_codec = VLC_CODEC_RV40;
1230
1231         /* Extract the framerate from the header */
1232         if( p_tk->i_extra_data >= 26 &&
1233             p[4] == 'V' && p[5] == 'I' && p[6] == 'D' && p[7] == 'O' &&
1234             p[8] == 'R' && p[9] == 'V' &&
1235             (p[10] == '3' || p[10] == '4') && p[11] == '0' )
1236         {
1237             p_tk->fmt.video.i_frame_rate =
1238                 p[22] << 24 | p[23] << 16 | p[24] << 8 | p[25] << 0;
1239             p_tk->fmt.video.i_frame_rate_base = 65536;
1240         }
1241
1242         fill_extra_data( p_tk, 26 );
1243         p_tk->b_dts_only = true;
1244     }
1245     else if( !strncmp( p_tk->psz_codec, "V_DIRAC", 7 ) )
1246     {
1247         p_tk->fmt.i_codec = VLC_CODEC_DIRAC;
1248     }
1249     else if( !strncmp( p_tk->psz_codec, "V_VP8", 5 ) )
1250     {
1251         p_tk->fmt.i_codec = VLC_CODEC_VP8;
1252         p_tk->b_pts_only = true;
1253     }
1254     else if( !strncmp( p_tk->psz_codec, "V_MPEG4", 7 ) )
1255     {
1256         if( !strcmp( p_tk->psz_codec, "V_MPEG4/MS/V3" ) )
1257         {
1258             p_tk->fmt.i_codec = VLC_CODEC_DIV3;
1259         }
1260         else if( !strncmp( p_tk->psz_codec, "V_MPEG4/ISO", 11 ) )
1261         {
1262             /* A MPEG 4 codec, SP, ASP, AP or AVC */
1263             if( !strcmp( p_tk->psz_codec, "V_MPEG4/ISO/AVC" ) )
1264                 p_tk->fmt.i_codec = VLC_FOURCC( 'a', 'v', 'c', '1' );
1265             else
1266                 p_tk->fmt.i_codec = VLC_CODEC_MP4V;
1267             fill_extra_data( p_tk, 0 );
1268         }
1269     }
1270     else if( !strcmp( p_tk->psz_codec, "V_QUICKTIME" ) )
1271     {
1272         MP4_Box_t *p_box = (MP4_Box_t*)xmalloc( sizeof( MP4_Box_t ) );
1273         stream_t *p_mp4_stream = stream_MemoryNew( VLC_OBJECT(&sys.demuxer),
1274                                                    p_tk->p_extra_data,
1275                                                    p_tk->i_extra_data,
1276                                                    true );
1277         if( MP4_ReadBoxCommon( p_mp4_stream, p_box ) &&
1278             MP4_ReadBox_sample_vide( p_mp4_stream, p_box ) )
1279         {
1280             p_tk->fmt.i_codec = p_box->i_type;
1281             p_tk->fmt.video.i_width = p_box->data.p_sample_vide->i_width;
1282             p_tk->fmt.video.i_height = p_box->data.p_sample_vide->i_height;
1283             p_tk->fmt.i_extra = p_box->data.p_sample_vide->i_qt_image_description;
1284             p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1285             memcpy( p_tk->fmt.p_extra, p_box->data.p_sample_vide->p_qt_image_description, p_tk->fmt.i_extra );
1286             MP4_FreeBox_sample_vide( p_box );
1287         }
1288         else
1289         {
1290             free( p_box );
1291         }
1292         stream_Delete( p_mp4_stream );
1293     }
1294     else if( !strcmp( p_tk->psz_codec, "V_MJPEG" ) )
1295     {
1296         p_tk->fmt.i_codec = VLC_CODEC_MJPG;
1297     }
1298     else if( !strcmp( p_tk->psz_codec, "A_MS/ACM" ) )
1299     {
1300         if( p_tk->i_extra_data < (int)sizeof( WAVEFORMATEX ) )
1301         {
1302             msg_Err( &sys.demuxer, "missing/invalid WAVEFORMATEX" );
1303             p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1304         }
1305         else
1306         {
1307             WAVEFORMATEX *p_wf = (WAVEFORMATEX*)p_tk->p_extra_data;
1308             if( p_wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1309                 p_tk->i_extra_data >= sizeof(WAVEFORMATEXTENSIBLE) )
1310             {
1311                 WAVEFORMATEXTENSIBLE * p_wext = (WAVEFORMATEXTENSIBLE*) p_wf;
1312                 sf_tag_to_fourcc( &p_wext->SubFormat,  &p_tk->fmt.i_codec, NULL);
1313                 /* FIXME should we use Samples and dwChannelMask?*/
1314             }
1315             else
1316                 wf_tag_to_fourcc( GetWLE( &p_wf->wFormatTag ), &p_tk->fmt.i_codec, NULL );
1317
1318             if( p_tk->fmt.i_codec == VLC_FOURCC( 'u', 'n', 'd', 'f' ) )
1319                 msg_Err( &sys.demuxer, "Unrecognized wf tag: 0x%x", GetWLE( &p_wf->wFormatTag ) );
1320             p_tk->fmt.audio.i_channels   = GetWLE( &p_wf->nChannels );
1321             p_tk->fmt.audio.i_rate = GetDWLE( &p_wf->nSamplesPerSec );
1322             p_tk->fmt.i_bitrate    = GetDWLE( &p_wf->nAvgBytesPerSec ) * 8;
1323             p_tk->fmt.audio.i_blockalign = GetWLE( &p_wf->nBlockAlign );;
1324             p_tk->fmt.audio.i_bitspersample = GetWLE( &p_wf->wBitsPerSample );
1325
1326             p_tk->fmt.i_extra            = GetWLE( &p_wf->cbSize );
1327             if( p_tk->fmt.i_extra > 0 )
1328             {
1329                 p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1330                 memcpy( p_tk->fmt.p_extra, &p_wf[1], p_tk->fmt.i_extra );
1331             }
1332         }
1333     }
1334     else if( !strcmp( p_tk->psz_codec, "A_MPEG/L3" ) ||
1335              !strcmp( p_tk->psz_codec, "A_MPEG/L2" ) ||
1336              !strcmp( p_tk->psz_codec, "A_MPEG/L1" ) )
1337     {
1338         p_tk->fmt.i_codec = VLC_CODEC_MPGA;
1339     }
1340     else if( !strcmp( p_tk->psz_codec, "A_AC3" ) )
1341     {
1342         p_tk->fmt.i_codec = VLC_CODEC_A52;
1343     }
1344     else if( !strcmp( p_tk->psz_codec, "A_EAC3" ) )
1345     {
1346         p_tk->fmt.i_codec = VLC_CODEC_EAC3;
1347     }
1348     else if( !strcmp( p_tk->psz_codec, "A_DTS" ) )
1349     {
1350         p_tk->fmt.i_codec = VLC_CODEC_DTS;
1351     }
1352     else if( !strcmp( p_tk->psz_codec, "A_MLP" ) )
1353     {
1354         p_tk->fmt.i_codec = VLC_CODEC_MLP;
1355     }
1356     else if( !strcmp( p_tk->psz_codec, "A_TRUEHD" ) )
1357     {
1358         /* FIXME when more samples arrive */
1359         p_tk->fmt.i_codec = VLC_CODEC_TRUEHD;
1360         p_fmt->b_packetized = false;
1361     }
1362     else if( !strcmp( p_tk->psz_codec, "A_FLAC" ) )
1363     {
1364         p_tk->fmt.i_codec = VLC_CODEC_FLAC;
1365         fill_extra_data( p_tk, 0 );
1366     }
1367     else if( !strcmp( p_tk->psz_codec, "A_VORBIS" ) )
1368     {
1369         p_tk->fmt.i_codec = VLC_CODEC_VORBIS;
1370         fill_extra_data( p_tk, 0 );
1371     }
1372     else if( !strncmp( p_tk->psz_codec, "A_AAC/MPEG2/", strlen( "A_AAC/MPEG2/" ) ) ||
1373              !strncmp( p_tk->psz_codec, "A_AAC/MPEG4/", strlen( "A_AAC/MPEG4/" ) ) )
1374     {
1375         int i_profile, i_srate, sbr = 0;
1376         static const unsigned int i_sample_rates[] =
1377         {
1378             96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1379             16000, 12000, 11025,  8000,  7350,     0,     0,     0
1380         };
1381
1382         p_tk->fmt.i_codec = VLC_CODEC_MP4A;
1383         /* create data for faad (MP4DecSpecificDescrTag)*/
1384
1385         if( !strcmp( &p_tk->psz_codec[12], "MAIN" ) )
1386         {
1387             i_profile = 0;
1388         }
1389         else if( !strcmp( &p_tk->psz_codec[12], "LC" ) )
1390         {
1391             i_profile = 1;
1392         }
1393         else if( !strcmp( &p_tk->psz_codec[12], "SSR" ) )
1394         {
1395             i_profile = 2;
1396         }
1397         else if( !strcmp( &p_tk->psz_codec[12], "LC/SBR" ) )
1398         {
1399             i_profile = 1;
1400             sbr = 1;
1401         }
1402         else
1403         {
1404             i_profile = 3;
1405         }
1406
1407         for( i_srate = 0; i_srate < 13; i_srate++ )
1408         {
1409             if( i_sample_rates[i_srate] == p_tk->i_original_rate )
1410             {
1411                 break;
1412             }
1413         }
1414         msg_Dbg( &sys.demuxer, "profile=%d srate=%d", i_profile, i_srate );
1415
1416         p_tk->fmt.i_extra = sbr ? 5 : 2;
1417         p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1418         ((uint8_t*)p_tk->fmt.p_extra)[0] = ((i_profile + 1) << 3) | ((i_srate&0xe) >> 1);
1419         ((uint8_t*)p_tk->fmt.p_extra)[1] = ((i_srate & 0x1) << 7) | (p_tk->fmt.audio.i_channels << 3);
1420         if (sbr != 0)
1421         {
1422             int syncExtensionType = 0x2B7;
1423             int iDSRI;
1424             for (iDSRI=0; iDSRI<13; iDSRI++)
1425                 if( i_sample_rates[iDSRI] == p_tk->fmt.audio.i_rate )
1426                     break;
1427             ((uint8_t*)p_tk->fmt.p_extra)[2] = (syncExtensionType >> 3) & 0xFF;
1428             ((uint8_t*)p_tk->fmt.p_extra)[3] = ((syncExtensionType & 0x7) << 5) | 5;
1429             ((uint8_t*)p_tk->fmt.p_extra)[4] = ((1 & 0x1) << 7) | (iDSRI << 3);
1430         }
1431     }
1432     else if( !strcmp( p_tk->psz_codec, "A_AAC" ) )
1433     {
1434         p_tk->fmt.i_codec = VLC_CODEC_MP4A;
1435         fill_extra_data( p_tk, 0 );
1436     }
1437     else if( !strcmp( p_tk->psz_codec, "A_WAVPACK4" ) )
1438     {
1439         p_tk->fmt.i_codec = VLC_CODEC_WAVPACK;
1440         fill_extra_data( p_tk, 0 );
1441     }
1442     else if( !strcmp( p_tk->psz_codec, "A_TTA1" ) )
1443     {
1444         p_fmt->i_codec = VLC_CODEC_TTA;
1445         if( p_tk->i_extra_data > 0 )
1446         {
1447             fill_extra_data( p_tk, 0 );
1448         }
1449         else
1450         {
1451             p_fmt->i_extra = 30;
1452             p_fmt->p_extra = xmalloc( p_fmt->i_extra );
1453             uint8_t *p_extra = (uint8_t*)p_fmt->p_extra;
1454             memcpy( &p_extra[ 0], "TTA1", 4 );
1455             SetWLE( &p_extra[ 4], 1 );
1456             SetWLE( &p_extra[ 6], p_fmt->audio.i_channels );
1457             SetWLE( &p_extra[ 8], p_fmt->audio.i_bitspersample );
1458             SetDWLE( &p_extra[10], p_fmt->audio.i_rate );
1459             SetDWLE( &p_extra[14], 0xffffffff );
1460             memset( &p_extra[18], 0, 30  - 18 );
1461         }
1462     }
1463     else if( !strcmp( p_tk->psz_codec, "A_PCM/INT/BIG" ) ||
1464              !strcmp( p_tk->psz_codec, "A_PCM/INT/LIT" ) ||
1465              !strcmp( p_tk->psz_codec, "A_PCM/FLOAT/IEEE" ) )
1466     {
1467         if( !strcmp( p_tk->psz_codec, "A_PCM/INT/BIG" ) )
1468         {
1469             p_tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1470         }
1471         else
1472         {
1473             p_tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
1474         }
1475         p_tk->fmt.audio.i_blockalign = ( p_tk->fmt.audio.i_bitspersample + 7 ) / 8 * p_tk->fmt.audio.i_channels;
1476     }
1477     else if( !strncmp( p_tk->psz_codec, "A_REAL/", 7 ) )
1478     {
1479         if( !strcmp( p_tk->psz_codec, "A_REAL/14_4" ) )
1480         {
1481             p_fmt->i_codec = VLC_CODEC_RA_144;
1482             p_fmt->audio.i_channels = 1;
1483             p_fmt->audio.i_rate = 8000;
1484             p_fmt->audio.i_blockalign = 0x14;
1485         }
1486         else if( p_tk->i_extra_data > 28 )
1487         {
1488             uint8_t *p = p_tk->p_extra_data;
1489             if( memcmp( p, ".ra", 3 ) ) {
1490                 msg_Err( &sys.demuxer, "Invalid Real ExtraData 0x%4.4s", (char *)p );
1491                 p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1492             }
1493             else
1494             {
1495                 real_audio_private * priv = (real_audio_private*) p_tk->p_extra_data;
1496                 if( !strcmp( p_tk->psz_codec, "A_REAL/COOK" ) )
1497                 {
1498                     p_tk->fmt.i_codec = VLC_CODEC_COOK;
1499                     p_tk->fmt.audio.i_blockalign = hton16(priv->sub_packet_size);
1500                 }
1501                 else if( !strcmp( p_tk->psz_codec, "A_REAL/ATRC" ) )
1502                     p_tk->fmt.i_codec = VLC_CODEC_ATRAC3;
1503                 else if( !strcmp( p_tk->psz_codec, "A_REAL/28_8" ) )
1504                     p_tk->fmt.i_codec = VLC_CODEC_RA_288;
1505                 /* FIXME RALF and SIPR */
1506                 uint16_t version = (uint16_t) hton16(priv->version);
1507                 p_tk->p_sys =
1508                     new Cook_PrivateTrackData( hton16(priv->sub_packet_h),
1509                                                hton16(priv->frame_size),
1510                                                hton16(priv->sub_packet_size));
1511                 if( unlikely( !p_tk->p_sys ) )
1512                     return 1;
1513
1514                 if( unlikely( p_tk->p_sys->Init() ) )
1515                     return 1;
1516
1517                 if( version == 4 )
1518                 {
1519                     real_audio_private_v4 * v4 = (real_audio_private_v4*) priv;
1520                     p_tk->fmt.audio.i_channels = hton16(v4->channels);
1521                     p_tk->fmt.audio.i_bitspersample = hton16(v4->sample_size);
1522                     p_tk->fmt.audio.i_rate = hton16(v4->sample_rate);
1523                 }
1524                 else if( version == 5 )
1525                 {
1526                     real_audio_private_v5 * v5 = (real_audio_private_v5*) priv;
1527                     p_tk->fmt.audio.i_channels = hton16(v5->channels);
1528                     p_tk->fmt.audio.i_bitspersample = hton16(v5->sample_size);
1529                     p_tk->fmt.audio.i_rate = hton16(v5->sample_rate);
1530                 }
1531                 msg_Dbg(&sys.demuxer, "%d channels %d bits %d Hz",p_tk->fmt.audio.i_channels, p_tk->fmt.audio.i_bitspersample, p_tk->fmt.audio.i_rate);
1532
1533                 fill_extra_data( p_tk, p_tk->fmt.i_codec == VLC_CODEC_RA_288 ? 0 : 78);
1534             }
1535         }
1536     }
1537     else if( !strcmp( p_tk->psz_codec, "S_KATE" ) )
1538     {
1539         p_tk->fmt.i_codec = VLC_CODEC_KATE;
1540         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1541
1542         fill_extra_data( p_tk, 0 );
1543     }
1544     else if( !strcmp( p_tk->psz_codec, "S_TEXT/ASCII" ) )
1545     {
1546         p_fmt->i_codec = VLC_CODEC_SUBT;
1547         p_fmt->subs.psz_encoding = strdup( "ASCII" );
1548     }
1549     else if( !strcmp( p_tk->psz_codec, "S_TEXT/UTF8" ) )
1550     {
1551         p_tk->fmt.i_codec = VLC_CODEC_SUBT;
1552         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1553     }
1554     else if( !strcmp( p_tk->psz_codec, "S_TEXT/USF" ) )
1555     {
1556         p_tk->fmt.i_codec = VLC_FOURCC( 'u', 's', 'f', ' ' );
1557         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1558         if( p_tk->i_extra_data )
1559             fill_extra_data( p_tk, 0 );
1560     }
1561     else if( !strcmp( p_tk->psz_codec, "S_TEXT/SSA" ) ||
1562              !strcmp( p_tk->psz_codec, "S_TEXT/ASS" ) ||
1563              !strcmp( p_tk->psz_codec, "S_SSA" ) ||
1564              !strcmp( p_tk->psz_codec, "S_ASS" ))
1565     {
1566         p_tk->fmt.i_codec = VLC_CODEC_SSA;
1567         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1568         if( p_tk->i_extra_data )
1569             fill_extra_data( p_tk, 0 );
1570     }
1571     else if( !strcmp( p_tk->psz_codec, "S_VOBSUB" ) )
1572     {
1573         p_tk->fmt.i_codec = VLC_CODEC_SPU;
1574         if( p_tk->i_extra_data )
1575         {
1576             char *psz_start;
1577             char *psz_buf = (char *)malloc( p_tk->i_extra_data + 1);
1578             if( psz_buf != NULL )
1579             {
1580                 memcpy( psz_buf, p_tk->p_extra_data , p_tk->i_extra_data );
1581                 psz_buf[p_tk->i_extra_data] = '\0';
1582
1583                 psz_start = strstr( psz_buf, "size:" );
1584                 if( psz_start &&
1585                     vobsub_size_parse( psz_start,
1586                                        &p_tk->fmt.subs.spu.i_original_frame_width,
1587                                        &p_tk->fmt.subs.spu.i_original_frame_height ) == VLC_SUCCESS )
1588                 {
1589                     msg_Dbg( &sys.demuxer, "original frame size vobsubs: %dx%d",
1590                              p_tk->fmt.subs.spu.i_original_frame_width,
1591                              p_tk->fmt.subs.spu.i_original_frame_height );
1592                 }
1593                 else
1594                 {
1595                     msg_Warn( &sys.demuxer, "reading original frame size for vobsub failed" );
1596                     return 1;
1597                 }
1598
1599                 psz_start = strstr( psz_buf, "palette:" );
1600                 if( psz_start &&
1601                     vobsub_palette_parse( psz_start, &p_tk->fmt.subs.spu.palette[1] ) == VLC_SUCCESS )
1602                 {
1603                     p_tk->fmt.subs.spu.palette[0] =  0xBeef;
1604                     msg_Dbg( &sys.demuxer, "vobsub palette read" );
1605                 }
1606                 else
1607                 {
1608                     msg_Warn( &sys.demuxer, "reading original palette failed" );
1609                 }
1610                 free( psz_buf );
1611             }
1612         }
1613     }
1614     else if( !strcmp( p_tk->psz_codec, "S_HDMV/PGS" ) )
1615     {
1616         p_tk->fmt.i_codec = VLC_CODEC_BD_PG;
1617     }
1618     else if( !strcmp( p_tk->psz_codec, "B_VOBBTN" ) )
1619     {
1620         p_tk->fmt.i_cat = NAV_ES;
1621     }
1622     else
1623     {
1624         msg_Err( &sys.demuxer, "unknown codec id=`%s'", p_tk->psz_codec );
1625         p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1626     }
1627     return 0;
1628 }