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 #include "../xiph.h"
  34 #include "../windows_audio_commons.h"
  35 }
  36
  37 #include <vlc_codecs.h>
  38
  39 /* GetFourCC helper */
  40 #define GetFOURCC( p )  __GetFOURCC( (uint8_t*)p )
  41 static vlc_fourcc_t __GetFOURCC( uint8_t *p )
  42 {
  43     return VLC_FOURCC( p[0], p[1], p[2], p[3] );
  44 }
  45
  46 static inline void fill_extra_data( mkv_track_t *p_tk, unsigned int offset )
  47 {
  48     if(p_tk->i_extra_data <= offset) return;
  49     p_tk->fmt.i_extra = p_tk->i_extra_data - offset;
  50     p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
  51     if(!p_tk->fmt.p_extra) { p_tk->fmt.i_extra = 0; return; };
  52     memcpy( p_tk->fmt.p_extra, p_tk->p_extra_data + offset, p_tk->fmt.i_extra );
  53 }
  54
  55 /*****************************************************************************
  56  * Some functions to manipulate memory
  57  *****************************************************************************/
  58 static inline char * ToUTF8( const UTFstring &u )
  59 {
  60     return strdup( u.GetUTF8().c_str() );
  61 }
  62
  63 /*****************************************************************************
  64  * ParseSeekHead:
  65  *****************************************************************************/
  66 void matroska_segment_c::ParseSeekHead( KaxSeekHead *seekhead )
  67 {
  68     EbmlParser  *ep;
  69     EbmlElement *l;
  70     bool b_seekable;
  71
  72     i_seekhead_count++;
  73
  74     stream_Control( sys.demuxer.s, STREAM_CAN_SEEK, &b_seekable );
  75     if( !b_seekable )
  76         return;
  77
  78     ep = new EbmlParser( &es, seekhead, &sys.demuxer );
  79
  80     while( ( l = ep->Get() ) != NULL )
  81     {
  82         if( MKV_IS_ID( l, KaxSeek ) )
  83         {
  84             EbmlId id = EBML_ID(EbmlVoid);
  85             int64_t i_pos = -1;
  86
  87 #ifdef MKV_DEBUG
  88             msg_Dbg( &sys.demuxer, "|   |   + Seek" );
  89 #endif
  90             ep->Down();
  91             try
  92             {
  93                 while( ( l = ep->Get() ) != NULL )
  94                 {
  95                     if( unlikely( l->GetSize() >= SIZE_MAX ) )
  96                     {
  97                         msg_Err( &sys.demuxer,"%s too big... skipping it",  typeid(*l).name() );
  98                         continue;
  99                     }
 100                     if( MKV_IS_ID( l, KaxSeekID ) )
 101                     {
 102                         KaxSeekID &sid = *(KaxSeekID*)l;
 103                         sid.ReadData( es.I_O() );
 104                         id = EbmlId( sid.GetBuffer(), sid.GetSize() );
 105                     }
 106                     else if( MKV_IS_ID( l, KaxSeekPosition ) )
 107                     {
 108                         KaxSeekPosition &spos = *(KaxSeekPosition*)l;
 109                         spos.ReadData( es.I_O() );
 110                         i_pos = (int64_t)segment->GetGlobalPosition( uint64( spos ) );
 111                     }
 112                     else
 113                     {
 114                         /* Many mkvmerge files hit this case. It seems to be a broken SeekHead */
 115                         msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 116                     }
 117                 }
 118             }
 119             catch(...)
 120             {
 121                 msg_Err( &sys.demuxer,"Error while reading %s",  typeid(*l).name() );
 122             }
 123             ep->Up();
 124
 125             if( i_pos >= 0 )
 126             {
 127                 if( id == EBML_ID(KaxCues) )
 128                 {
 129                     msg_Dbg( &sys.demuxer, "|   - cues at %"PRId64, i_pos );
 130                     LoadSeekHeadItem( EBML_INFO(KaxCues), i_pos );
 131                 }
 132                 else if( id == EBML_ID(KaxInfo) )
 133                 {
 134                     msg_Dbg( &sys.demuxer, "|   - info at %"PRId64, i_pos );
 135                     LoadSeekHeadItem( EBML_INFO(KaxInfo), i_pos );
 136                 }
 137                 else if( id == EBML_ID(KaxChapters) )
 138                 {
 139                     msg_Dbg( &sys.demuxer, "|   - chapters at %"PRId64, i_pos );
 140                     LoadSeekHeadItem( EBML_INFO(KaxChapters), i_pos );
 141                 }
 142                 else if( id == EBML_ID(KaxTags) )
 143                 {
 144                     msg_Dbg( &sys.demuxer, "|   - tags at %"PRId64, i_pos );
 145                     LoadSeekHeadItem( EBML_INFO(KaxTags), i_pos );
 146                 }
 147                 else if( id == EBML_ID(KaxSeekHead) )
 148                 {
 149                     msg_Dbg( &sys.demuxer, "|   - chained seekhead at %"PRId64, i_pos );
 150                     LoadSeekHeadItem( EBML_INFO(KaxSeekHead), i_pos );
 151                 }
 152                 else if( id == EBML_ID(KaxTracks) )
 153                 {
 154                     msg_Dbg( &sys.demuxer, "|   - tracks at %"PRId64, i_pos );
 155                     LoadSeekHeadItem( EBML_INFO(KaxTracks), i_pos );
 156                 }
 157                 else if( id == EBML_ID(KaxAttachments) )
 158                 {
 159                     msg_Dbg( &sys.demuxer, "|   - attachments at %"PRId64, i_pos );
 160                     LoadSeekHeadItem( EBML_INFO(KaxAttachments), i_pos );
 161                 }
 162 #ifdef MKV_DEBUG
 163                 else
 164                     msg_Dbg( &sys.demuxer, "|   - unknown seekhead reference at %"PRId64, i_pos );
 165 #endif
 166             }
 167         }
 168         else
 169             msg_Dbg( &sys.demuxer, "|   |   + ParseSeekHead Unknown (%s)", typeid(*l).name() );
 170     }
 171     delete ep;
 172 }
 173
 174
 175 /**
 176  * Helper function to print the mkv parse tree
 177  */
 178 static void MkvTree( demux_t & demuxer, int i_level, const char *psz_format, ... )
 179 {
 180     va_list args;
 181     if( i_level > 9 )
 182     {
 183         msg_Err( &demuxer, "MKV tree is too deep" );
 184         return;
 185     }
 186     va_start( args, psz_format );
 187     static const char psz_foo[] = "|   |   |   |   |   |   |   |   |   |";
 188     char *psz_foo2 = (char*)malloc( i_level * 4 + 3 + strlen( psz_format ) );
 189     strncpy( psz_foo2, psz_foo, 4 * i_level );
 190     psz_foo2[ 4 * i_level ] = '+';
 191     psz_foo2[ 4 * i_level + 1 ] = ' ';
 192     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 193     msg_GenericVa( &demuxer,VLC_MSG_DBG, "mkv", psz_foo2, args );
 194     free( psz_foo2 );
 195     va_end( args );
 196 }
 197
 198
 199 /*****************************************************************************
 200  * ParseTrackEntry:
 201  *****************************************************************************/
 202 void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
 203 {
 204     bool bSupported = true;
 205
 206     /* Init the track */
 207     mkv_track_t *tk = new mkv_track_t();
 208     memset( tk, 0, sizeof( mkv_track_t ) );
 209
 210     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
 211     tk->p_es = NULL;
 212     tk->fmt.psz_language       = strdup("English");
 213     tk->fmt.psz_description    = NULL;
 214
 215     tk->b_default              = true;
 216     tk->b_enabled              = true;
 217     tk->b_forced               = false;
 218     tk->b_silent               = false;
 219     tk->i_number               = tracks.size() - 1;
 220     tk->i_extra_data           = 0;
 221     tk->p_extra_data           = NULL;
 222     tk->psz_codec              = NULL;
 223     tk->b_dts_only             = false;
 224     tk->i_default_duration     = 0;
 225     tk->b_no_duration          = false;
 226     tk->f_timecodescale        = 1.0;
 227
 228     tk->b_inited               = false;
 229     tk->i_data_init            = 0;
 230     tk->p_data_init            = NULL;
 231
 232     tk->psz_codec_name         = NULL;
 233     tk->psz_codec_settings     = NULL;
 234     tk->psz_codec_info_url     = NULL;
 235     tk->psz_codec_download_url = NULL;
 236
 237     tk->i_compression_type     = MATROSKA_COMPRESSION_NONE;
 238     tk->i_encoding_scope       = MATROSKA_ENCODING_SCOPE_ALL_FRAMES;
 239     tk->p_compression_data     = NULL;
 240
 241     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
 242
 243     for( size_t i = 0; i < m->ListSize(); i++ )
 244     {
 245         EbmlElement *l = (*m)[i];
 246
 247         if( MKV_IS_ID( l, KaxTrackNumber ) )
 248         {
 249             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
 250
 251             tk->i_number = uint32( tnum );
 252             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
 253         }
 254         else  if( MKV_IS_ID( l, KaxTrackUID ) )
 255         {
 256             KaxTrackUID &tuid = *(KaxTrackUID*)l;
 257
 258             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
 259         }
 260         else  if( MKV_IS_ID( l, KaxTrackType ) )
 261         {
 262             const char *psz_type;
 263             KaxTrackType &ttype = *(KaxTrackType*)l;
 264
 265             switch( uint8(ttype) )
 266             {
 267                 case track_audio:
 268                     psz_type = "audio";
 269                     tk->fmt.i_cat = AUDIO_ES;
 270                     tk->fmt.audio.i_channels = 1;
 271                     tk->fmt.audio.i_rate = 8000;
 272                     break;
 273                 case track_video:
 274                     psz_type = "video";
 275                     tk->fmt.i_cat = VIDEO_ES;
 276                     break;
 277                 case track_subtitle:
 278                     psz_type = "subtitle";
 279                     tk->fmt.i_cat = SPU_ES;
 280                     break;
 281                 case track_buttons:
 282                     psz_type = "buttons";
 283                     tk->fmt.i_cat = SPU_ES;
 284                     break;
 285                 default:
 286                     psz_type = "unknown";
 287                     tk->fmt.i_cat = UNKNOWN_ES;
 288                     break;
 289             }
 290
 291             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
 292         }
 293         else  if( MKV_IS_ID( l, KaxTrackFlagEnabled ) ) // UNUSED
 294         {
 295             KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
 296
 297             tk->b_enabled = uint32( fenb );
 298             msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u", uint32( fenb ) );
 299         }
 300         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
 301         {
 302             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
 303
 304             tk->b_default = uint32( fdef );
 305             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef ) );
 306         }
 307         else  if( MKV_IS_ID( l, KaxTrackFlagForced ) ) // UNUSED
 308         {
 309             KaxTrackFlagForced &ffor = *(KaxTrackFlagForced*)l;
 310             tk->b_forced = uint32( ffor );
 311
 312             msg_Dbg( &sys.demuxer, "|   |   |   + Track Forced=%u", uint32( ffor ) );
 313         }
 314         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) ) // UNUSED
 315         {
 316             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
 317
 318             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
 319         }
 320         else  if( MKV_IS_ID( l, KaxTrackMinCache ) ) // UNUSED
 321         {
 322             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
 323
 324             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
 325         }
 326         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) ) // UNUSED
 327         {
 328             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
 329
 330             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
 331         }
 332         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
 333         {
 334             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
 335
 336             tk->i_default_duration = uint64(defd);
 337             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration=%"PRId64, uint64(defd) );
 338         }
 339         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
 340         {
 341             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
 342
 343             tk->f_timecodescale = float( ttcs );
 344             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
 345         }
 346         else  if( MKV_IS_ID( l, KaxMaxBlockAdditionID ) ) // UNUSED
 347         {
 348             KaxMaxBlockAdditionID &mbl = *(KaxMaxBlockAdditionID*)l;
 349
 350             msg_Dbg( &sys.demuxer, "|   |   |   + Track Max BlockAdditionID=%d", uint32( mbl ) );
 351         }
 352         else if( MKV_IS_ID( l, KaxTrackName ) )
 353         {
 354             KaxTrackName &tname = *(KaxTrackName*)l;
 355
 356             tk->fmt.psz_description = ToUTF8( UTFstring( tname ) );
 357             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
 358         }
 359         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
 360         {
 361             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
 362
 363             free( tk->fmt.psz_language );
 364             tk->fmt.psz_language = strdup( string( lang ).c_str() );
 365             msg_Dbg( &sys.demuxer,
 366                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
 367         }
 368         else  if( MKV_IS_ID( l, KaxCodecID ) )
 369         {
 370             KaxCodecID &codecid = *(KaxCodecID*)l;
 371
 372             tk->psz_codec = strdup( string( codecid ).c_str() );
 373             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
 374         }
 375         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
 376         {
 377             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
 378
 379             tk->i_extra_data = cpriv.GetSize();
 380             if( tk->i_extra_data > 0 )
 381             {
 382                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
 383                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
 384             }
 385             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size=%"PRId64, cpriv.GetSize() );
 386         }
 387         else if( MKV_IS_ID( l, KaxCodecName ) )
 388         {
 389             KaxCodecName &cname = *(KaxCodecName*)l;
 390
 391             tk->psz_codec_name = ToUTF8( UTFstring( cname ) );
 392             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
 393         }
 394         //AttachmentLink
 395         else if( MKV_IS_ID( l, KaxCodecDecodeAll ) ) // UNUSED
 396         {
 397             KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
 398
 399             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u", uint8( cdall ) );
 400         }
 401         else if( MKV_IS_ID( l, KaxTrackOverlay ) ) // UNUSED
 402         {
 403             KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
 404
 405             msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u", uint32( tovr ) );
 406         }
 407 #if LIBMATROSKA_VERSION >= 0x010401
 408         else if( MKV_IS_ID( l, KaxCodecDelay ) )
 409         {
 410             KaxCodecDelay &codecdelay = *(KaxCodecDelay*)l;
 411             tk->i_codec_delay = uint64_t( codecdelay ) / 1000;
 412             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Delay =%"PRIu64,
 413                      tk->i_codec_delay );
 414         }
 415         else if( MKV_IS_ID( l, KaxSeekPreRoll ) )
 416         {
 417             KaxSeekPreRoll &spr = *(KaxSeekPreRoll*)l;
 418             tk->i_seek_preroll = uint64_t(spr) / 1000;
 419             msg_Dbg( &sys.demuxer, "|   |   |   + Track Seek Preroll =%"PRIu64, tk->i_seek_preroll );
 420         }
 421 #endif
 422         else if( MKV_IS_ID( l, KaxContentEncodings ) )
 423         {
 424             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
 425             MkvTree( sys.demuxer, 3, "Content Encodings" );
 426             if ( cencs->ListSize() > 1 )
 427             {
 428                 msg_Err( &sys.demuxer, "Multiple Compression method not supported" );
 429                 bSupported = false;
 430             }
 431             for( size_t j = 0; j < cencs->ListSize(); j++ )
 432             {
 433                 EbmlElement *l2 = (*cencs)[j];
 434                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
 435                 {
 436                     MkvTree( sys.demuxer, 4, "Content Encoding" );
 437                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
 438                     for( size_t k = 0; k < cenc->ListSize(); k++ )
 439                     {
 440                         EbmlElement *l3 = (*cenc)[k];
 441                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
 442                         {
 443                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
 444                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
 445                         }
 446                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
 447                         {
 448                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
 449                             tk->i_encoding_scope = uint32( encscope );
 450                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
 451                         }
 452                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
 453                         {
 454                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
 455                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
 456                         }
 457                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
 458                         {
 459                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
 460                             MkvTree( sys.demuxer, 5, "Content Compression" );
 461                             //Default compression type is 0 (Zlib)
 462                             tk->i_compression_type = MATROSKA_COMPRESSION_ZLIB;
 463                             for( size_t n = 0; n < compr->ListSize(); n++ )
 464                             {
 465                                 EbmlElement *l4 = (*compr)[n];
 466                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
 467                                 {
 468                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
 469                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
 470                                     tk->i_compression_type = uint32( compalg );
 471                                     if ( ( tk->i_compression_type != MATROSKA_COMPRESSION_ZLIB ) &&
 472                                          ( tk->i_compression_type != MATROSKA_COMPRESSION_HEADER ) )
 473                                     {
 474                                         msg_Err( &sys.demuxer, "Track Compression method %d not supported", tk->i_compression_type );
 475                                         bSupported = false;
 476                                     }
 477                                 }
 478                                 else if( MKV_IS_ID( l4, KaxContentCompSettings ) )
 479                                 {
 480                                     tk->p_compression_data = new KaxContentCompSettings( *(KaxContentCompSettings*)l4 );
 481                                 }
 482                                 else
 483                                 {
 484                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
 485                                 }
 486                             }
 487                         }
 488                         // ContentEncryption Unsupported
 489                         else
 490                         {
 491                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
 492                         }
 493                     }
 494                 }
 495                 else
 496                 {
 497                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
 498                 }
 499             }
 500         }
 501 //        else if( MKV_IS_ID( l, KaxCodecSettings) ) DEPRECATED by matroska
 502 //        {
 503 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
 504
 505 //            tk->psz_codec_settings = ToUTF8( UTFstring( cset ) );
 506 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
 507 //        }
 508 //        else if( MKV_IS_ID( l, KaxCodecInfoURL) ) DEPRECATED by matroska
 509 //        {
 510 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
 511
 512 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
 513 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
 514 //        }
 515 //        else if( MKV_IS_ID( l, KaxCodecDownloadURL) ) DEPRECATED by matroska
 516 //        {
 517 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
 518
 519 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
 520 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
 521 //        }
 522         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
 523         {
 524             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
 525             unsigned int i_crop_right = 0, i_crop_left = 0, i_crop_top = 0, i_crop_bottom = 0;
 526             unsigned int i_display_unit = 0, i_display_width = 0, i_display_height = 0;
 527
 528             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
 529             tk->f_fps = 0.0;
 530
 531             tk->fmt.video.i_frame_rate_base = (unsigned int)(tk->i_default_duration / 1000);
 532             tk->fmt.video.i_frame_rate = 1000000;
 533
 534             for( unsigned int j = 0; j < tkv->ListSize(); j++ )
 535             {
 536                 EbmlElement *l = (*tkv)[j];
 537                 if( MKV_IS_ID( l, KaxVideoFlagInterlaced ) ) // UNUSED
 538                 {
 539                     KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)l;
 540
 541                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
 542                 }
 543                 else if( MKV_IS_ID( l, KaxVideoStereoMode ) ) // UNUSED
 544                 {
 545                     KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)l;
 546
 547                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
 548                 }
 549                 else if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
 550                 {
 551                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
 552
 553                     tk->fmt.video.i_width += uint16( vwidth );
 554                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
 555                 }
 556                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
 557                 {
 558                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
 559
 560                     tk->fmt.video.i_height += uint16( vheight );
 561                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
 562                 }
 563                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
 564                 {
 565                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
 566
 567                     i_display_width = uint16( vwidth );
 568                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
 569                 }
 570                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
 571                 {
 572                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
 573
 574                     i_display_height = uint16( vheight );
 575                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
 576                 }
 577                 else if( MKV_IS_ID( l, KaxVideoPixelCropBottom ) )
 578                 {
 579                     KaxVideoPixelCropBottom &cropval = *(KaxVideoPixelCropBottom*)l;
 580
 581                     i_crop_bottom = uint16( cropval );
 582                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel bottom=%d", uint16( cropval ) );
 583                 }
 584                 else if( MKV_IS_ID( l, KaxVideoPixelCropTop ) )
 585                 {
 586                     KaxVideoPixelCropTop &cropval = *(KaxVideoPixelCropTop*)l;
 587
 588                     i_crop_top = uint16( cropval );
 589                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel top=%d", uint16( cropval ) );
 590                 }
 591                 else if( MKV_IS_ID( l, KaxVideoPixelCropRight ) )
 592                 {
 593                     KaxVideoPixelCropRight &cropval = *(KaxVideoPixelCropRight*)l;
 594
 595                     i_crop_right = uint16( cropval );
 596                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel right=%d", uint16( cropval ) );
 597                 }
 598                 else if( MKV_IS_ID( l, KaxVideoPixelCropLeft ) )
 599                 {
 600                     KaxVideoPixelCropLeft &cropval = *(KaxVideoPixelCropLeft*)l;
 601
 602                     i_crop_left = uint16( cropval );
 603                     msg_Dbg( &sys.demuxer, "|   |   |   |   + crop pixel left=%d", uint16( cropval ) );
 604                 }
 605                 else if( MKV_IS_ID( l, KaxVideoDisplayUnit ) )
 606                 {
 607                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
 608
 609                     i_display_unit = uint8( vdmode );
 610                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
 611                              i_display_unit == 0 ? "pixels" : ( i_display_unit == 1 ? "centimeters": "inches" ) );
 612                 }
 613                 else if( MKV_IS_ID( l, KaxVideoAspectRatio ) ) // UNUSED
 614                 {
 615                     KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
 616
 617                     msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
 618                 }
 619                 // ColourSpace UNUSED
 620                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
 621                 {
 622                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
 623
 624                     tk->f_fps = float( vfps );
 625                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
 626                 }
 627 //                else if( MKV_IS_ID( l, KaxVideoGamma) ) //DEPRECATED by Matroska
 628 //                {
 629 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
 630
 631 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + gamma=%f", float( gamma ) );
 632 //                }
 633                 else
 634                 {
 635                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 636                 }
 637             }
 638             if( i_display_height && i_display_width )
 639             {
 640                 tk->fmt.video.i_sar_num = i_display_width  * tk->fmt.video.i_height;
 641                 tk->fmt.video.i_sar_den = i_display_height * tk->fmt.video.i_width;
 642             }
 643             if( i_crop_left || i_crop_right || i_crop_top || i_crop_bottom )
 644             {
 645                 tk->fmt.video.i_visible_width   = tk->fmt.video.i_width;
 646                 tk->fmt.video.i_visible_height  = tk->fmt.video.i_height;
 647                 tk->fmt.video.i_x_offset        = i_crop_left;
 648                 tk->fmt.video.i_y_offset        = i_crop_top;
 649                 tk->fmt.video.i_visible_width  -= i_crop_left + i_crop_right;
 650                 tk->fmt.video.i_visible_height -= i_crop_top + i_crop_bottom;
 651             }
 652             /* FIXME: i_display_* allows you to not only set DAR, but also a zoom factor.
 653                we do not support this atm */
 654         }
 655         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
 656         {
 657             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
 658
 659             /* Initialize default values */
 660             tk->fmt.audio.i_channels = 1;
 661             tk->fmt.audio.i_rate = 8000;
 662
 663             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
 664
 665             for( unsigned int j = 0; j < tka->ListSize(); j++ )
 666             {
 667                 EbmlElement *l = (*tka)[j];
 668
 669                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
 670                 {
 671                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
 672
 673                     tk->i_original_rate = tk->fmt.audio.i_rate = (int)float( afreq );
 674                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
 675                 }
 676                 else if( MKV_IS_ID( l, KaxAudioOutputSamplingFreq ) )
 677                 {
 678                     KaxAudioOutputSamplingFreq &afreq = *(KaxAudioOutputSamplingFreq*)l;
 679
 680                     tk->fmt.audio.i_rate = (int)float( afreq );
 681                     msg_Dbg( &sys.demuxer, "|   |   |   |   + aoutfreq=%d", tk->fmt.audio.i_rate );
 682                 }
 683                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
 684                 {
 685                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
 686
 687                     tk->fmt.audio.i_channels = uint8( achan );
 688                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
 689                 }
 690                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
 691                 {
 692                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
 693
 694                     tk->fmt.audio.i_bitspersample = uint8( abits );
 695                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
 696                 }
 697                 else
 698                 {
 699                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
 700                 }
 701             }
 702         }
 703         else
 704         {
 705             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
 706                      typeid(*l).name() );
 707         }
 708     }
 709
 710     if ( bSupported )
 711     {
 712 #ifdef HAVE_ZLIB_H
 713         if( tk->i_compression_type == MATROSKA_COMPRESSION_ZLIB &&
 714             tk->i_encoding_scope & MATROSKA_ENCODING_SCOPE_PRIVATE &&
 715             tk->i_extra_data && tk->p_extra_data &&
 716             zlib_decompress_extra( &sys.demuxer, tk) )
 717             return;
 718 #endif
 719         if( TrackInit( tk ) )
 720         {
 721             msg_Err(&sys.demuxer, "Couldn't init track %d", tk->i_number );
 722             free(tk->p_extra_data);
 723             delete tk;
 724             return;
 725         }
 726
 727         tracks.push_back( tk );
 728     }
 729     else
 730     {
 731         msg_Err( &sys.demuxer, "Track Entry %d not supported", tk->i_number );
 732         free(tk->p_extra_data);
 733         delete tk;
 734     }
 735 }
 736
 737 /*****************************************************************************
 738  * ParseTracks:
 739  *****************************************************************************/
 740 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
 741 {
 742     EbmlElement *el;
 743     int i_upper_level = 0;
 744
 745     /* Master elements */
 746     if( unlikely( tracks->GetSize() >= SIZE_MAX ) )
 747     {
 748         msg_Err( &sys.demuxer, "Track too big, aborting" );
 749         return;
 750     }
 751     try
 752     {
 753         tracks->Read( es, EBML_CONTEXT(tracks), i_upper_level, el, true );
 754     }
 755     catch(...)
 756     {
 757         msg_Err( &sys.demuxer, "Couldn't read tracks" );
 758         return;
 759     }
 760
 761     for( size_t i = 0; i < tracks->ListSize(); i++ )
 762     {
 763         EbmlElement *l = (*tracks)[i];
 764
 765         if( MKV_IS_ID( l, KaxTrackEntry ) )
 766         {
 767             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
 768         }
 769         else
 770         {
 771             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 772         }
 773     }
 774 }
 775
 776 /*****************************************************************************
 777  * ParseInfo:
 778  *****************************************************************************/
 779 void matroska_segment_c::ParseInfo( KaxInfo *info )
 780 {
 781     EbmlElement *el;
 782     EbmlMaster  *m;
 783     int i_upper_level = 0;
 784
 785     /* Master elements */
 786     m = static_cast<EbmlMaster *>(info);
 787     if( unlikely( m->GetSize() >= SIZE_MAX ) )
 788     {
 789         msg_Err( &sys.demuxer, "Info too big, aborting" );
 790         return;
 791     }
 792     try
 793     {
 794         m->Read( es, EBML_CONTEXT(info), i_upper_level, el, true );
 795     }
 796     catch(...)
 797     {
 798         msg_Err( &sys.demuxer, "Couldn't read info" );
 799         return;
 800     }
 801
 802     for( size_t i = 0; i < m->ListSize(); i++ )
 803     {
 804         EbmlElement *l = (*m)[i];
 805
 806         if( MKV_IS_ID( l, KaxSegmentUID ) )
 807         {
 808             if ( p_segment_uid == NULL )
 809                 p_segment_uid = new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l));
 810
 811             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)p_segment_uid->GetBuffer() );
 812         }
 813         else if( MKV_IS_ID( l, KaxPrevUID ) )
 814         {
 815             if ( p_prev_segment_uid == NULL )
 816             {
 817                 p_prev_segment_uid = new KaxPrevUID(*static_cast<KaxPrevUID*>(l));
 818                 b_ref_external_segments = true;
 819             }
 820
 821             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)p_prev_segment_uid->GetBuffer() );
 822         }
 823         else if( MKV_IS_ID( l, KaxNextUID ) )
 824         {
 825             if ( p_next_segment_uid == NULL )
 826             {
 827                 p_next_segment_uid = new KaxNextUID(*static_cast<KaxNextUID*>(l));
 828                 b_ref_external_segments = true;
 829             }
 830
 831             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)p_next_segment_uid->GetBuffer() );
 832         }
 833         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
 834         {
 835             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
 836
 837             i_timescale = uint64(tcs);
 838
 839             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale=%"PRId64,
 840                      i_timescale );
 841         }
 842         else if( MKV_IS_ID( l, KaxDuration ) )
 843         {
 844             KaxDuration &dur = *(KaxDuration*)l;
 845
 846             i_duration = mtime_t( double( dur ) );
 847
 848             msg_Dbg( &sys.demuxer, "|   |   + Duration=%"PRId64,
 849                      i_duration );
 850         }
 851         else if( MKV_IS_ID( l, KaxMuxingApp ) )
 852         {
 853             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
 854
 855             psz_muxing_application = ToUTF8( UTFstring( mapp ) );
 856
 857             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
 858                      psz_muxing_application );
 859         }
 860         else if( MKV_IS_ID( l, KaxWritingApp ) )
 861         {
 862             KaxWritingApp &wapp = *(KaxWritingApp*)l;
 863
 864             psz_writing_application = ToUTF8( UTFstring( wapp ) );
 865
 866             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
 867                      psz_writing_application );
 868         }
 869         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
 870         {
 871             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
 872
 873             psz_segment_filename = ToUTF8( UTFstring( sfn ) );
 874
 875             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
 876                      psz_segment_filename );
 877         }
 878         else if( MKV_IS_ID( l, KaxTitle ) )
 879         {
 880             KaxTitle &title = *(KaxTitle*)l;
 881
 882             psz_title = ToUTF8( UTFstring( title ) );
 883
 884             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
 885         }
 886         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 887         {
 888             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
 889
 890             families.push_back( new KaxSegmentFamily(*uid) );
 891
 892             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
 893         }
 894         else if( MKV_IS_ID( l, KaxDateUTC ) )
 895         {
 896             KaxDateUTC &date = *(KaxDateUTC*)l;
 897             time_t i_date;
 898             struct tm tmres;
 899             char   buffer[25];
 900
 901             i_date = date.GetEpochDate();
 902             if( gmtime_r( &i_date, &tmres ) &&
 903                 strftime( buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y",
 904                           &tmres ) )
 905             {
 906                 psz_date_utc = strdup( buffer );
 907                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", buffer );
 908             }
 909         }
 910         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
 911         {
 912             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
 913             try
 914             {
 915                 if( unlikely( p_trans->GetSize() >= SIZE_MAX ) )
 916                 {
 917                     msg_Err( &sys.demuxer, "Chapter translate too big, aborting" );
 918                     continue;
 919                 }
 920
 921                 p_trans->Read( es, EBML_CONTEXT(p_trans), i_upper_level, el, true );
 922                 chapter_translation_c *p_translate = new chapter_translation_c();
 923
 924                 for( size_t j = 0; j < p_trans->ListSize(); j++ )
 925                 {
 926                     EbmlElement *l = (*p_trans)[j];
 927
 928                     if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
 929                     {
 930                         p_translate->editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
 931                     }
 932                     else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
 933                     {
 934                         p_translate->codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
 935                     }
 936                     else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
 937                     {
 938                         p_translate->p_translated = new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) );
 939                     }
 940                 }
 941
 942                 translations.push_back( p_translate );
 943             }
 944             catch(...)
 945             {
 946                 msg_Err( &sys.demuxer, "Error while reading Chapter Tranlate");
 947             }
 948         }
 949         else
 950         {
 951             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
 952         }
 953     }
 954
 955     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
 956     i_duration = mtime_t(f_dur);
 957     if( !i_duration ) i_duration = -1;
 958 }
 959
 960
 961 /*****************************************************************************
 962  * ParseChapterAtom
 963  *****************************************************************************/
 964 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
 965 {
 966     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
 967     for( size_t i = 0; i < ca->ListSize(); i++ )
 968     {
 969         EbmlElement *l = (*ca)[i];
 970
 971         if( MKV_IS_ID( l, KaxChapterUID ) )
 972         {
 973             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
 974             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %"PRIu64"", chapters.i_uid );
 975         }
 976         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
 977         {
 978             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
 979             chapters.b_display_seekpoint = uint8( flag ) == 0;
 980
 981             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
 982         }
 983         else if( MKV_IS_ID( l, KaxChapterSegmentUID ) )
 984         {
 985             chapters.p_segment_uid = new KaxChapterSegmentUID( *static_cast<KaxChapterSegmentUID*>(l) );
 986             b_ref_external_segments = true;
 987             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentUID= %u", *(uint32*)chapters.p_segment_uid->GetBuffer() );
 988         }
 989         else if( MKV_IS_ID( l, KaxChapterSegmentEditionUID ) )
 990         {
 991             chapters.p_segment_edition_uid = new KaxChapterSegmentEditionUID( *static_cast<KaxChapterSegmentEditionUID*>(l) );
 992             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterSegmentEditionUID= %u",
 993 #if LIBMATROSKA_VERSION < 0x010300
 994                      *(uint32*)chapters.p_segment_edition_uid->GetBuffer()
 995 #else
 996                      *(uint32*)chapters.p_segment_edition_uid
 997 #endif
 998                    );
 999         }
1000         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
1001         {
1002             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
1003             chapters.i_start_time = uint64( start ) / INT64_C(1000);
1004
1005             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %"PRId64"", chapters.i_start_time );
1006         }
1007         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
1008         {
1009             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
1010             chapters.i_end_time = uint64( end ) / INT64_C(1000);
1011
1012             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %"PRId64"", chapters.i_end_time );
1013         }
1014         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
1015         {
1016             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
1017
1018             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
1019             for( size_t j = 0; j < cd->ListSize(); j++ )
1020             {
1021                 EbmlElement *l= (*cd)[j];
1022
1023                 if( MKV_IS_ID( l, KaxChapterString ) )
1024                 {
1025                     KaxChapterString &name =*(KaxChapterString*)l;
1026                     for ( int k = 0; k < i_level; k++)
1027                         chapters.psz_name += '+';
1028                     chapters.psz_name += ' ';
1029                     char *psz_tmp_utf8 = ToUTF8( UTFstring( name ) );
1030                     chapters.psz_name += psz_tmp_utf8;
1031                     chapters.b_user_display = true;
1032
1033                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", psz_tmp_utf8 );
1034                     free( psz_tmp_utf8 );
1035                 }
1036                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
1037                 {
1038                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
1039                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'",
1040                              string( lang ).c_str() );
1041                 }
1042                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
1043                 {
1044                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
1045                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'",
1046                              string( ct ).c_str() );
1047                 }
1048             }
1049         }
1050         else if( MKV_IS_ID( l, KaxChapterProcess ) )
1051         {
1052             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
1053
1054             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
1055             chapter_codec_cmds_c *p_ccodec = NULL;
1056
1057             for( size_t j = 0; j < cp->ListSize(); j++ )
1058             {
1059                 EbmlElement *k= (*cp)[j];
1060
1061                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
1062                 {
1063                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
1064                     if ( uint32(*p_codec_id) == 0 )
1065                         p_ccodec = new matroska_script_codec_c( sys );
1066                     else if ( uint32(*p_codec_id) == 1 )
1067                         p_ccodec = new dvd_chapter_codec_c( sys );
1068                     break;
1069                 }
1070             }
1071
1072             if ( p_ccodec != NULL )
1073             {
1074                 for( size_t j = 0; j < cp->ListSize(); j++ )
1075                 {
1076                     EbmlElement *k= (*cp)[j];
1077
1078                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
1079                     {
1080                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
1081                         p_ccodec->SetPrivate( *p_private );
1082                     }
1083                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
1084                     {
1085                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
1086                     }
1087                 }
1088                 chapters.codecs.push_back( p_ccodec );
1089             }
1090         }
1091         else if( MKV_IS_ID( l, KaxChapterAtom ) )
1092         {
1093             chapter_item_c *new_sub_chapter = new chapter_item_c();
1094             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1095             new_sub_chapter->p_parent = &chapters;
1096             chapters.sub_chapters.push_back( new_sub_chapter );
1097         }
1098     }
1099 }
1100
1101 /*****************************************************************************
1102  * ParseAttachments:
1103  *****************************************************************************/
1104 void matroska_segment_c::ParseAttachments( KaxAttachments *attachments )
1105 {
1106     EbmlElement *el;
1107     int i_upper_level = 0;
1108
1109     if( unlikely( attachments->GetSize() >= SIZE_MAX ) )
1110     {
1111         msg_Err( &sys.demuxer, "Attachments too big, aborting" );
1112         return;
1113     }
1114     try
1115     {
1116         attachments->Read( es, EBML_CONTEXT(attachments), i_upper_level, el, true );
1117     }
1118     catch(...)
1119     {
1120         msg_Err( &sys.demuxer, "Error while reading attachments" );
1121         return;
1122     }
1123
1124     KaxAttached *attachedFile = FindChild<KaxAttached>( *attachments );
1125
1126     while( attachedFile && ( attachedFile->GetSize() > 0 ) )
1127     {
1128         KaxFileData  &img_data     = GetChild<KaxFileData>( *attachedFile );
1129         char *psz_tmp_utf8 =  ToUTF8( UTFstring( GetChild<KaxFileName>( *attachedFile ) ) );
1130         std::string attached_filename(psz_tmp_utf8);
1131         free(psz_tmp_utf8);
1132         attachment_c *new_attachment = new attachment_c( attached_filename,
1133                                                          GetChild<KaxMimeType>( *attachedFile ),
1134                                                          img_data.GetSize() );
1135
1136         msg_Dbg( &sys.demuxer, "|   |   - %s (%s)", new_attachment->fileName(), new_attachment->mimeType() );
1137
1138         if( new_attachment->init() )
1139         {
1140             memcpy( new_attachment->p_data, img_data.GetBuffer(), img_data.GetSize() );
1141             sys.stored_attachments.push_back( new_attachment );
1142             if( !strncmp( new_attachment->mimeType(), "image/", 6 ) )
1143             {
1144                 char *psz_url;
1145                 if( asprintf( &psz_url, "attachment://%s",
1146                               new_attachment->fileName() ) == -1 )
1147                     continue;
1148                 if( !sys.meta )
1149                     sys.meta = vlc_meta_New();
1150                 vlc_meta_SetArtURL( sys.meta, psz_url );
1151                 free( psz_url );
1152             }
1153         }
1154         else
1155         {
1156             delete new_attachment;
1157         }
1158
1159         attachedFile = &GetNextChild<KaxAttached>( *attachments, *attachedFile );
1160     }
1161 }
1162
1163 /*****************************************************************************
1164  * ParseChapters:
1165  *****************************************************************************/
1166 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
1167 {
1168     EbmlElement *el;
1169     int i_upper_level = 0;
1170
1171     /* Master elements */
1172     if( unlikely( chapters->GetSize() >= SIZE_MAX ) )
1173     {
1174         msg_Err( &sys.demuxer, "Chapters too big, aborting" );
1175         return;
1176     }
1177     try
1178     {
1179         chapters->Read( es, EBML_CONTEXT(chapters), i_upper_level, el, true );
1180     }
1181     catch(...)
1182     {
1183         msg_Err( &sys.demuxer, "Error while reading chapters" );
1184         return;
1185     }
1186
1187     for( size_t i = 0; i < chapters->ListSize(); i++ )
1188     {
1189         EbmlElement *l = (*chapters)[i];
1190
1191         if( MKV_IS_ID( l, KaxEditionEntry ) )
1192         {
1193             chapter_edition_c *p_edition = new chapter_edition_c();
1194
1195             EbmlMaster *E = static_cast<EbmlMaster *>(l );
1196             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
1197             for( size_t j = 0; j < E->ListSize(); j++ )
1198             {
1199                 EbmlElement *l = (*E)[j];
1200
1201                 if( MKV_IS_ID( l, KaxChapterAtom ) )
1202                 {
1203                     chapter_item_c *new_sub_chapter = new chapter_item_c();
1204                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
1205                     p_edition->sub_chapters.push_back( new_sub_chapter );
1206                 }
1207                 else if( MKV_IS_ID( l, KaxEditionUID ) )
1208                 {
1209                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
1210                 }
1211                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
1212                 {
1213                     p_edition->b_ordered = var_InheritBool( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
1214                 }
1215                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
1216                 {
1217                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
1218                         i_default_edition = stored_editions.size();
1219                 }
1220                 else if( MKV_IS_ID( l, KaxEditionFlagHidden ) )
1221                 {
1222                     // FIXME to implement
1223                 }
1224                 else
1225                 {
1226                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
1227                 }
1228             }
1229             stored_editions.push_back( p_edition );
1230         }
1231         else
1232         {
1233             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
1234         }
1235     }
1236 }
1237
1238 void matroska_segment_c::ParseCluster( bool b_update_start_time )
1239 {
1240     EbmlElement *el;
1241     EbmlMaster  *m;
1242     int i_upper_level = 0;
1243
1244     /* Master elements */
1245     m = static_cast<EbmlMaster *>( cluster );
1246     if( unlikely( m->GetSize() >= SIZE_MAX ) )
1247     {
1248         msg_Err( &sys.demuxer, "Cluster too big, aborting" );
1249         return;
1250     }
1251     try
1252     {
1253         m->Read( es, EBML_CONTEXT(cluster), i_upper_level, el, true );
1254     }
1255     catch(...)
1256     {
1257         msg_Err( &sys.demuxer, "Error while reading cluster" );
1258         return;
1259     }
1260
1261     for( unsigned int i = 0; i < m->ListSize(); i++ )
1262     {
1263         EbmlElement *l = (*m)[i];
1264
1265         if( MKV_IS_ID( l, KaxClusterTimecode ) )
1266         {
1267             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
1268
1269             cluster->InitTimecode( uint64( ctc ), i_timescale );
1270             break;
1271         }
1272     }
1273
1274     if( b_update_start_time )
1275         i_start_time = cluster->GlobalTimecode() / 1000;
1276 }
1277
1278
1279 int32_t matroska_segment_c::TrackInit( mkv_track_t * p_tk )
1280 {
1281     es_format_t *p_fmt = &p_tk->fmt;
1282
1283     if( p_tk->psz_codec == NULL )
1284     {
1285         msg_Err( &sys.demuxer, "Empty codec id" );
1286         p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1287         return 0;
1288     }
1289
1290     if( !strcmp( p_tk->psz_codec, "V_MS/VFW/FOURCC" ) )
1291     {
1292         if( p_tk->i_extra_data < (int)sizeof( VLC_BITMAPINFOHEADER ) )
1293         {
1294             msg_Err( &sys.demuxer, "missing/invalid VLC_BITMAPINFOHEADER" );
1295             p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1296         }
1297         else
1298         {
1299             VLC_BITMAPINFOHEADER *p_bih = (VLC_BITMAPINFOHEADER*)p_tk->p_extra_data;
1300
1301             p_tk->fmt.video.i_width = GetDWLE( &p_bih->biWidth );
1302             p_tk->fmt.video.i_height= GetDWLE( &p_bih->biHeight );
1303             p_tk->fmt.i_codec       = GetFOURCC( &p_bih->biCompression );
1304
1305             p_tk->fmt.i_extra       = GetDWLE( &p_bih->biSize ) - sizeof( VLC_BITMAPINFOHEADER );
1306             if( p_tk->fmt.i_extra > 0 )
1307             {
1308                 /* Very unlikely yet possible: bug #5659*/
1309                 size_t maxlen = p_tk->i_extra_data - sizeof( VLC_BITMAPINFOHEADER );
1310                 p_tk->fmt.i_extra = ( (unsigned)p_tk->fmt.i_extra < maxlen )?
1311                     p_tk->fmt.i_extra : maxlen;
1312
1313                 p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1314                 memcpy( p_tk->fmt.p_extra, &p_bih[1], p_tk->fmt.i_extra );
1315             }
1316         }
1317         p_tk->b_dts_only = true;
1318     }
1319     else if( !strcmp( p_tk->psz_codec, "V_MPEG1" ) ||
1320              !strcmp( p_tk->psz_codec, "V_MPEG2" ) )
1321     {
1322         p_tk->fmt.i_codec = VLC_CODEC_MPGV;
1323         if( p_tk->i_extra_data )
1324             fill_extra_data( p_tk, 0 );
1325     }
1326     else if( !strncmp( p_tk->psz_codec, "V_THEORA", 8 ) )
1327     {
1328         p_tk->fmt.i_codec = VLC_CODEC_THEORA;
1329         fill_extra_data( p_tk, 0 );
1330         p_tk->b_pts_only = true;
1331     }
1332     else if( !strncmp( p_tk->psz_codec, "V_REAL/RV", 9 ) )
1333     {
1334         uint8_t *p = p_tk->p_extra_data;
1335
1336         if( !strcmp( p_tk->psz_codec, "V_REAL/RV10" ) )
1337             p_fmt->i_codec = VLC_CODEC_RV10;
1338         else if( !strcmp( p_tk->psz_codec, "V_REAL/RV20" ) )
1339             p_fmt->i_codec = VLC_CODEC_RV20;
1340         else if( !strcmp( p_tk->psz_codec, "V_REAL/RV30" ) )
1341             p_fmt->i_codec = VLC_CODEC_RV30;
1342         else if( !strcmp( p_tk->psz_codec, "V_REAL/RV40" ) )
1343             p_fmt->i_codec = VLC_CODEC_RV40;
1344
1345         /* Extract the framerate from the header */
1346         if( p_tk->i_extra_data >= 26 &&
1347             p[4] == 'V' && p[5] == 'I' && p[6] == 'D' && p[7] == 'O' &&
1348             p[8] == 'R' && p[9] == 'V' &&
1349             (p[10] == '3' || p[10] == '4') && p[11] == '0' )
1350         {
1351             p_tk->fmt.video.i_frame_rate =
1352                 p[22] << 24 | p[23] << 16 | p[24] << 8 | p[25] << 0;
1353             p_tk->fmt.video.i_frame_rate_base = 65536;
1354         }
1355
1356         fill_extra_data( p_tk, 26 );
1357         p_tk->b_dts_only = true;
1358     }
1359     else if( !strncmp( p_tk->psz_codec, "V_DIRAC", 7 ) )
1360     {
1361         p_tk->fmt.i_codec = VLC_CODEC_DIRAC;
1362     }
1363     else if( !strncmp( p_tk->psz_codec, "V_VP8", 5 ) )
1364     {
1365         p_tk->fmt.i_codec = VLC_CODEC_VP8;
1366         p_tk->b_pts_only = true;
1367     }
1368     else if( !strncmp( p_tk->psz_codec, "V_VP9", 5 ) )
1369     {
1370         p_tk->fmt.i_codec = VLC_CODEC_VP9;
1371         fill_extra_data( p_tk, 0 );
1372     }
1373     else if( !strncmp( p_tk->psz_codec, "V_MPEG4", 7 ) )
1374     {
1375         if( !strcmp( p_tk->psz_codec, "V_MPEG4/MS/V3" ) )
1376         {
1377             p_tk->fmt.i_codec = VLC_CODEC_DIV3;
1378         }
1379         else if( !strncmp( p_tk->psz_codec, "V_MPEG4/ISO", 11 ) )
1380         {
1381             /* A MPEG 4 codec, SP, ASP, AP or AVC */
1382             if( !strcmp( p_tk->psz_codec, "V_MPEG4/ISO/AVC" ) )
1383                 p_tk->fmt.i_codec = VLC_FOURCC( 'a', 'v', 'c', '1' );
1384             else
1385                 p_tk->fmt.i_codec = VLC_CODEC_MP4V;
1386             fill_extra_data( p_tk, 0 );
1387         }
1388     }
1389     else if( !strncmp( p_tk->psz_codec, "V_MPEGH/ISO/HEVC", 16) )
1390     {
1391         p_tk->fmt.i_codec = VLC_CODEC_HEVC;
1392         fill_extra_data( p_tk, 0 );
1393     }
1394     else if( !strcmp( p_tk->psz_codec, "V_QUICKTIME" ) )
1395     {
1396         MP4_Box_t *p_box = (MP4_Box_t*)xmalloc( sizeof( MP4_Box_t ) );
1397         stream_t *p_mp4_stream = stream_MemoryNew( VLC_OBJECT(&sys.demuxer),
1398                                                    p_tk->p_extra_data,
1399                                                    p_tk->i_extra_data,
1400                                                    true );
1401         if( MP4_ReadBoxCommon( p_mp4_stream, p_box ) &&
1402             MP4_ReadBox_sample_vide( p_mp4_stream, p_box ) )
1403         {
1404             p_tk->fmt.i_codec = p_box->i_type;
1405             p_tk->fmt.video.i_width = p_box->data.p_sample_vide->i_width;
1406             p_tk->fmt.video.i_height = p_box->data.p_sample_vide->i_height;
1407             p_tk->fmt.i_extra = p_box->data.p_sample_vide->i_qt_image_description;
1408             p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1409             memcpy( p_tk->fmt.p_extra, p_box->data.p_sample_vide->p_qt_image_description, p_tk->fmt.i_extra );
1410             MP4_FreeBox_sample_vide( p_box );
1411         }
1412         else
1413         {
1414             free( p_box );
1415         }
1416         stream_Delete( p_mp4_stream );
1417     }
1418     else if( !strcmp( p_tk->psz_codec, "V_MJPEG" ) )
1419     {
1420         p_tk->fmt.i_codec = VLC_CODEC_MJPG;
1421     }
1422     else if( !strcmp( p_tk->psz_codec, "A_MS/ACM" ) )
1423     {
1424         if( p_tk->i_extra_data < (int)sizeof( WAVEFORMATEX ) )
1425         {
1426             msg_Err( &sys.demuxer, "missing/invalid WAVEFORMATEX" );
1427             p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1428         }
1429         else
1430         {
1431             WAVEFORMATEX *p_wf = (WAVEFORMATEX*)p_tk->p_extra_data;
1432
1433             p_tk->fmt.audio.i_channels   = GetWLE( &p_wf->nChannels );
1434             p_tk->fmt.audio.i_rate = GetDWLE( &p_wf->nSamplesPerSec );
1435             p_tk->fmt.i_bitrate    = GetDWLE( &p_wf->nAvgBytesPerSec ) * 8;
1436             p_tk->fmt.audio.i_blockalign = GetWLE( &p_wf->nBlockAlign );;
1437             p_tk->fmt.audio.i_bitspersample = GetWLE( &p_wf->wBitsPerSample );
1438
1439             p_tk->fmt.i_extra            = GetWLE( &p_wf->cbSize );
1440             if( p_tk->fmt.i_extra > 0 )
1441             {
1442                 p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1443                 if( p_tk->fmt.p_extra )
1444                     memcpy( p_tk->fmt.p_extra, &p_wf[1], p_tk->fmt.i_extra );
1445                 else
1446                     p_tk->fmt.i_extra = 0;
1447             }
1448
1449             if( p_wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1450                 p_tk->i_extra_data >= sizeof(WAVEFORMATEXTENSIBLE) )
1451             {
1452                 WAVEFORMATEXTENSIBLE * p_wext = (WAVEFORMATEXTENSIBLE*) p_wf;
1453                 sf_tag_to_fourcc( &p_wext->SubFormat,  &p_tk->fmt.i_codec, NULL);
1454                 /* FIXME should we use Samples */
1455
1456                 if( p_tk->fmt.audio.i_channels > 2 &&
1457                     ( p_tk->fmt.i_codec != VLC_FOURCC( 'u', 'n', 'd', 'f' ) ) )
1458                 {
1459                     uint32_t wfextcm = GetDWLE( &p_wext->dwChannelMask );
1460                     int match;
1461                     unsigned i_channel_mask = getChannelMask( &wfextcm,
1462                                                               p_tk->fmt.audio.i_channels,
1463                                                               &match );
1464                     p_tk->fmt.i_codec = vlc_fourcc_GetCodecAudio( p_tk->fmt.i_codec,
1465                                                                   p_tk->fmt.audio.i_bitspersample );
1466                     if( i_channel_mask )
1467                     {
1468                         p_tk->i_chans_to_reorder = aout_CheckChannelReorder(
1469                             pi_channels_aout, NULL,
1470                             i_channel_mask,
1471                             p_tk->pi_chan_table );
1472
1473                         p_tk->fmt.audio.i_physical_channels =
1474                         p_tk->fmt.audio.i_original_channels = i_channel_mask;
1475                     }
1476                 }
1477             }
1478             else
1479                 wf_tag_to_fourcc( GetWLE( &p_wf->wFormatTag ), &p_tk->fmt.i_codec, NULL );
1480
1481             if( p_tk->fmt.i_codec == VLC_FOURCC( 'u', 'n', 'd', 'f' ) )
1482                 msg_Err( &sys.demuxer, "Unrecognized wf tag: 0x%x", GetWLE( &p_wf->wFormatTag ) );
1483         }
1484     }
1485     else if( !strcmp( p_tk->psz_codec, "A_MPEG/L3" ) ||
1486              !strcmp( p_tk->psz_codec, "A_MPEG/L2" ) ||
1487              !strcmp( p_tk->psz_codec, "A_MPEG/L1" ) )
1488     {
1489         p_tk->fmt.i_codec = VLC_CODEC_MPGA;
1490     }
1491     else if( !strcmp( p_tk->psz_codec, "A_AC3" ) )
1492     {
1493         p_tk->fmt.i_codec = VLC_CODEC_A52;
1494     }
1495     else if( !strcmp( p_tk->psz_codec, "A_EAC3" ) )
1496     {
1497         p_tk->fmt.i_codec = VLC_CODEC_EAC3;
1498     }
1499     else if( !strcmp( p_tk->psz_codec, "A_DTS" ) )
1500     {
1501         p_tk->fmt.i_codec = VLC_CODEC_DTS;
1502     }
1503     else if( !strcmp( p_tk->psz_codec, "A_MLP" ) )
1504     {
1505         p_tk->fmt.i_codec = VLC_CODEC_MLP;
1506     }
1507     else if( !strcmp( p_tk->psz_codec, "A_TRUEHD" ) )
1508     {
1509         /* FIXME when more samples arrive */
1510         p_tk->fmt.i_codec = VLC_CODEC_TRUEHD;
1511         p_fmt->b_packetized = false;
1512     }
1513     else if( !strcmp( p_tk->psz_codec, "A_FLAC" ) )
1514     {
1515         p_tk->fmt.i_codec = VLC_CODEC_FLAC;
1516         fill_extra_data( p_tk, 8 );
1517     }
1518     else if( !strcmp( p_tk->psz_codec, "A_VORBIS" ) )
1519     {
1520         p_tk->fmt.i_codec = VLC_CODEC_VORBIS;
1521         fill_extra_data( p_tk, 0 );
1522     }
1523     else if( !strncmp( p_tk->psz_codec, "A_OPUS", 6 ) )
1524     {
1525         p_tk->fmt.i_codec = VLC_CODEC_OPUS;
1526         if( !p_tk->fmt.audio.i_rate )
1527         {
1528             msg_Err( &sys.demuxer,"No sampling rate, defaulting to 48kHz");
1529             p_tk->fmt.audio.i_rate = 48000;
1530         }
1531         const uint8_t tags[16] = {'O','p','u','s','T','a','g','s',
1532                                    0, 0, 0, 0, 0, 0, 0, 0};
1533         unsigned ps[2] = { p_tk->i_extra_data, 16 };
1534         const void *pkt[2] = { (const void *)p_tk->p_extra_data,
1535                               (const void *) tags };
1536
1537         if( xiph_PackHeaders( &p_tk->fmt.i_extra,
1538                               &p_tk->fmt.p_extra,
1539                               ps, pkt, 2 ) )
1540             msg_Err( &sys.demuxer, "Couldn't pack OPUS headers");
1541
1542     }
1543     else if( !strncmp( p_tk->psz_codec, "A_AAC/MPEG2/", strlen( "A_AAC/MPEG2/" ) ) ||
1544              !strncmp( p_tk->psz_codec, "A_AAC/MPEG4/", strlen( "A_AAC/MPEG4/" ) ) )
1545     {
1546         int i_profile, i_srate, sbr = 0;
1547         static const unsigned int i_sample_rates[] =
1548         {
1549             96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1550             16000, 12000, 11025,  8000,  7350,     0,     0,     0
1551         };
1552
1553         p_tk->fmt.i_codec = VLC_CODEC_MP4A;
1554         /* create data for faad (MP4DecSpecificDescrTag)*/
1555
1556         if( !strcmp( &p_tk->psz_codec[12], "MAIN" ) )
1557         {
1558             i_profile = 0;
1559         }
1560         else if( !strcmp( &p_tk->psz_codec[12], "LC" ) )
1561         {
1562             i_profile = 1;
1563         }
1564         else if( !strcmp( &p_tk->psz_codec[12], "SSR" ) )
1565         {
1566             i_profile = 2;
1567         }
1568         else if( !strcmp( &p_tk->psz_codec[12], "LC/SBR" ) )
1569         {
1570             i_profile = 1;
1571             sbr = 1;
1572         }
1573         else
1574         {
1575             i_profile = 3;
1576         }
1577
1578         for( i_srate = 0; i_srate < 13; i_srate++ )
1579         {
1580             if( i_sample_rates[i_srate] == p_tk->i_original_rate )
1581             {
1582                 break;
1583             }
1584         }
1585         msg_Dbg( &sys.demuxer, "profile=%d srate=%d", i_profile, i_srate );
1586
1587         p_tk->fmt.i_extra = sbr ? 5 : 2;
1588         p_tk->fmt.p_extra = xmalloc( p_tk->fmt.i_extra );
1589         ((uint8_t*)p_tk->fmt.p_extra)[0] = ((i_profile + 1) << 3) | ((i_srate&0xe) >> 1);
1590         ((uint8_t*)p_tk->fmt.p_extra)[1] = ((i_srate & 0x1) << 7) | (p_tk->fmt.audio.i_channels << 3);
1591         if (sbr != 0)
1592         {
1593             int syncExtensionType = 0x2B7;
1594             int iDSRI;
1595             for (iDSRI=0; iDSRI<13; iDSRI++)
1596                 if( i_sample_rates[iDSRI] == p_tk->fmt.audio.i_rate )
1597                     break;
1598             ((uint8_t*)p_tk->fmt.p_extra)[2] = (syncExtensionType >> 3) & 0xFF;
1599             ((uint8_t*)p_tk->fmt.p_extra)[3] = ((syncExtensionType & 0x7) << 5) | 5;
1600             ((uint8_t*)p_tk->fmt.p_extra)[4] = ((1 & 0x1) << 7) | (iDSRI << 3);
1601         }
1602     }
1603     else if( !strcmp( p_tk->psz_codec, "A_AAC" ) )
1604     {
1605         p_tk->fmt.i_codec = VLC_CODEC_MP4A;
1606         fill_extra_data( p_tk, 0 );
1607     }
1608     else if( !strcmp( p_tk->psz_codec, "A_ALAC" ) )
1609     {
1610         p_tk->fmt.i_codec =  VLC_CODEC_ALAC;
1611         fill_extra_data( p_tk, 0 );
1612     }
1613     else if( !strcmp( p_tk->psz_codec, "A_WAVPACK4" ) )
1614     {
1615         p_tk->fmt.i_codec = VLC_CODEC_WAVPACK;
1616         fill_extra_data( p_tk, 0 );
1617     }
1618     else if( !strcmp( p_tk->psz_codec, "A_TTA1" ) )
1619     {
1620         p_fmt->i_codec = VLC_CODEC_TTA;
1621         if( p_tk->i_extra_data > 0 )
1622         {
1623             fill_extra_data( p_tk, 0 );
1624         }
1625         else
1626         {
1627             p_fmt->i_extra = 30;
1628             p_fmt->p_extra = xmalloc( p_fmt->i_extra );
1629             uint8_t *p_extra = (uint8_t*)p_fmt->p_extra;
1630             memcpy( &p_extra[ 0], "TTA1", 4 );
1631             SetWLE( &p_extra[ 4], 1 );
1632             SetWLE( &p_extra[ 6], p_fmt->audio.i_channels );
1633             SetWLE( &p_extra[ 8], p_fmt->audio.i_bitspersample );
1634             SetDWLE( &p_extra[10], p_fmt->audio.i_rate );
1635             SetDWLE( &p_extra[14], 0xffffffff );
1636             memset( &p_extra[18], 0, 30  - 18 );
1637         }
1638     }
1639     else if( !strcmp( p_tk->psz_codec, "A_PCM/INT/BIG" ) ||
1640              !strcmp( p_tk->psz_codec, "A_PCM/INT/LIT" ) ||
1641              !strcmp( p_tk->psz_codec, "A_PCM/FLOAT/IEEE" ) )
1642     {
1643         if( !strcmp( p_tk->psz_codec, "A_PCM/INT/BIG" ) )
1644         {
1645             p_tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1646         }
1647         else
1648         {
1649             p_tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
1650         }
1651         p_tk->fmt.audio.i_blockalign = ( p_tk->fmt.audio.i_bitspersample + 7 ) / 8 * p_tk->fmt.audio.i_channels;
1652     }
1653     else if( !strncmp( p_tk->psz_codec, "A_REAL/", 7 ) )
1654     {
1655         if( !strcmp( p_tk->psz_codec, "A_REAL/14_4" ) )
1656         {
1657             p_fmt->i_codec = VLC_CODEC_RA_144;
1658             p_fmt->audio.i_channels = 1;
1659             p_fmt->audio.i_rate = 8000;
1660             p_fmt->audio.i_blockalign = 0x14;
1661         }
1662         else if( p_tk->i_extra_data > 28 )
1663         {
1664             uint8_t *p = p_tk->p_extra_data;
1665             if( memcmp( p, ".ra", 3 ) ) {
1666                 msg_Err( &sys.demuxer, "Invalid Real ExtraData 0x%4.4s", (char *)p );
1667                 p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1668             }
1669             else
1670             {
1671                 real_audio_private * priv = (real_audio_private*) p_tk->p_extra_data;
1672                 if( !strcmp( p_tk->psz_codec, "A_REAL/COOK" ) )
1673                 {
1674                     p_tk->fmt.i_codec = VLC_CODEC_COOK;
1675                     p_tk->fmt.audio.i_blockalign = hton16(priv->sub_packet_size);
1676                 }
1677                 else if( !strcmp( p_tk->psz_codec, "A_REAL/ATRC" ) )
1678                     p_tk->fmt.i_codec = VLC_CODEC_ATRAC3;
1679                 else if( !strcmp( p_tk->psz_codec, "A_REAL/28_8" ) )
1680                     p_tk->fmt.i_codec = VLC_CODEC_RA_288;
1681                 /* FIXME RALF and SIPR */
1682                 uint16_t version = (uint16_t) hton16(priv->version);
1683                 p_tk->p_sys =
1684                     new Cook_PrivateTrackData( hton16(priv->sub_packet_h),
1685                                                hton16(priv->frame_size),
1686                                                hton16(priv->sub_packet_size));
1687                 if( unlikely( !p_tk->p_sys ) )
1688                     return 1;
1689
1690                 if( unlikely( p_tk->p_sys->Init() ) )
1691                     return 1;
1692
1693                 if( version == 4 )
1694                 {
1695                     real_audio_private_v4 * v4 = (real_audio_private_v4*) priv;
1696                     p_tk->fmt.audio.i_channels = hton16(v4->channels);
1697                     p_tk->fmt.audio.i_bitspersample = hton16(v4->sample_size);
1698                     p_tk->fmt.audio.i_rate = hton16(v4->sample_rate);
1699                 }
1700                 else if( version == 5 )
1701                 {
1702                     real_audio_private_v5 * v5 = (real_audio_private_v5*) priv;
1703                     p_tk->fmt.audio.i_channels = hton16(v5->channels);
1704                     p_tk->fmt.audio.i_bitspersample = hton16(v5->sample_size);
1705                     p_tk->fmt.audio.i_rate = hton16(v5->sample_rate);
1706                 }
1707                 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);
1708
1709                 fill_extra_data( p_tk, p_tk->fmt.i_codec == VLC_CODEC_RA_288 ? 0 : 78);
1710             }
1711         }
1712     }
1713     else if( !strcmp( p_tk->psz_codec, "S_KATE" ) )
1714     {
1715         p_tk->fmt.i_codec = VLC_CODEC_KATE;
1716         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1717
1718         fill_extra_data( p_tk, 0 );
1719     }
1720     else if( !strcmp( p_tk->psz_codec, "S_TEXT/ASCII" ) )
1721     {
1722         p_fmt->i_codec = VLC_CODEC_SUBT;
1723         p_fmt->subs.psz_encoding = strdup( "ASCII" );
1724     }
1725     else if( !strcmp( p_tk->psz_codec, "S_TEXT/UTF8" ) )
1726     {
1727         p_tk->fmt.i_codec = VLC_CODEC_SUBT;
1728         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1729     }
1730     else if( !strcmp( p_tk->psz_codec, "S_TEXT/USF" ) )
1731     {
1732         p_tk->fmt.i_codec = VLC_FOURCC( 'u', 's', 'f', ' ' );
1733         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1734         if( p_tk->i_extra_data )
1735             fill_extra_data( p_tk, 0 );
1736     }
1737     else if( !strcmp( p_tk->psz_codec, "S_TEXT/SSA" ) ||
1738              !strcmp( p_tk->psz_codec, "S_TEXT/ASS" ) ||
1739              !strcmp( p_tk->psz_codec, "S_SSA" ) ||
1740              !strcmp( p_tk->psz_codec, "S_ASS" ))
1741     {
1742         p_tk->fmt.i_codec = VLC_CODEC_SSA;
1743         p_tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1744         if( p_tk->i_extra_data )
1745             fill_extra_data( p_tk, 0 );
1746     }
1747     else if( !strcmp( p_tk->psz_codec, "S_VOBSUB" ) )
1748     {
1749         p_tk->fmt.i_codec = VLC_CODEC_SPU;
1750         p_tk->b_no_duration = true;
1751         if( p_tk->i_extra_data )
1752         {
1753             char *psz_start;
1754             char *psz_buf = (char *)malloc( p_tk->i_extra_data + 1);
1755             if( psz_buf != NULL )
1756             {
1757                 memcpy( psz_buf, p_tk->p_extra_data , p_tk->i_extra_data );
1758                 psz_buf[p_tk->i_extra_data] = '\0';
1759
1760                 psz_start = strstr( psz_buf, "size:" );
1761                 if( psz_start &&
1762                     vobsub_size_parse( psz_start,
1763                                        &p_tk->fmt.subs.spu.i_original_frame_width,
1764                                        &p_tk->fmt.subs.spu.i_original_frame_height ) == VLC_SUCCESS )
1765                 {
1766                     msg_Dbg( &sys.demuxer, "original frame size vobsubs: %dx%d",
1767                              p_tk->fmt.subs.spu.i_original_frame_width,
1768                              p_tk->fmt.subs.spu.i_original_frame_height );
1769                 }
1770                 else
1771                 {
1772                     free( psz_buf );
1773                     msg_Warn( &sys.demuxer, "reading original frame size for vobsub failed" );
1774                 }
1775
1776                 psz_start = strstr( psz_buf, "palette:" );
1777                 if( psz_start &&
1778                     vobsub_palette_parse( psz_start, &p_tk->fmt.subs.spu.palette[1] ) == VLC_SUCCESS )
1779                 {
1780                     p_tk->fmt.subs.spu.palette[0] =  0xBeef;
1781                     msg_Dbg( &sys.demuxer, "vobsub palette read" );
1782                 }
1783                 else
1784                 {
1785                     msg_Warn( &sys.demuxer, "reading original palette failed" );
1786                 }
1787                 free( psz_buf );
1788             }
1789         }
1790     }
1791     else if( !strcmp( p_tk->psz_codec, "S_HDMV/PGS" ) )
1792     {
1793         p_tk->fmt.i_codec = VLC_CODEC_BD_PG;
1794     }
1795     else if( !strcmp( p_tk->psz_codec, "B_VOBBTN" ) )
1796     {
1797         p_tk->fmt.i_cat = NAV_ES;
1798     }
1799     else
1800     {
1801         msg_Err( &sys.demuxer, "unknown codec id=`%s'", p_tk->psz_codec );
1802         p_tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1803     }
1804     return 0;
1805 }