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

   1 /*****************************************************************************
   2  * mkv.cpp : matroska demuxer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2004 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
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <stdlib.h>                                      /* malloc(), free() */
  29
  30 #include <vlc/vlc.h>
  31
  32 #ifdef HAVE_TIME_H
  33 #   include <time.h>                                               /* time() */
  34 #endif
  35
  36 #include <vlc/input.h>
  37
  38 #include <codecs.h>                        /* BITMAPINFOHEADER, WAVEFORMATEX */
  39 #include "iso_lang.h"
  40 #include "vlc_meta.h"
  41
  42 #include <iostream>
  43 #include <cassert>
  44 #include <typeinfo>
  45 #include <string>
  46 #include <vector>
  47 #include <algorithm>
  48
  49 #ifdef HAVE_DIRENT_H
  50 #   include <dirent.h>
  51 #endif
  52
  53 /* libebml and matroska */
  54 #include "ebml/EbmlHead.h"
  55 #include "ebml/EbmlSubHead.h"
  56 #include "ebml/EbmlStream.h"
  57 #include "ebml/EbmlContexts.h"
  58 #include "ebml/EbmlVoid.h"
  59 #include "ebml/EbmlVersion.h"
  60 #include "ebml/StdIOCallback.h"
  61
  62 #include "matroska/KaxAttachments.h"
  63 #include "matroska/KaxBlock.h"
  64 #include "matroska/KaxBlockData.h"
  65 #include "matroska/KaxChapters.h"
  66 #include "matroska/KaxCluster.h"
  67 #include "matroska/KaxClusterData.h"
  68 #include "matroska/KaxContexts.h"
  69 #include "matroska/KaxCues.h"
  70 #include "matroska/KaxCuesData.h"
  71 #include "matroska/KaxInfo.h"
  72 #include "matroska/KaxInfoData.h"
  73 #include "matroska/KaxSeekHead.h"
  74 #include "matroska/KaxSegment.h"
  75 #include "matroska/KaxTag.h"
  76 #include "matroska/KaxTags.h"
  77 #include "matroska/KaxTagMulti.h"
  78 #include "matroska/KaxTracks.h"
  79 #include "matroska/KaxTrackAudio.h"
  80 #include "matroska/KaxTrackVideo.h"
  81 #include "matroska/KaxTrackEntryData.h"
  82 #include "matroska/KaxContentEncoding.h"
  83 #include "matroska/KaxVersion.h"
  84
  85 #include "ebml/StdIOCallback.h"
  86
  87 extern "C" {
  88    #include "mp4/libmp4.h"
  89 }
  90 #ifdef HAVE_ZLIB_H
  91 #   include <zlib.h>
  92 #endif
  93
  94 #define MATROSKA_COMPRESSION_NONE 0
  95 #define MATROSKA_COMPRESSION_ZLIB 1
  96
  97 #define MKVD_TIMECODESCALE 1000000
  98
  99 /**
 100  * What's between a directory and a filename?
 101  */
 102 #if defined( WIN32 )
 103     #define DIRECTORY_SEPARATOR '\\'
 104 #else
 105     #define DIRECTORY_SEPARATOR '/'
 106 #endif
 107
 108 using namespace LIBMATROSKA_NAMESPACE;
 109 using namespace std;
 110
 111 /*****************************************************************************
 112  * Module descriptor
 113  *****************************************************************************/
 114 static int  Open ( vlc_object_t * );
 115 static void Close( vlc_object_t * );
 116
 117 vlc_module_begin();
 118     set_shortname( _("Matroska") );
 119     set_description( _("Matroska stream demuxer" ) );
 120     set_capability( "demux2", 50 );
 121     set_callbacks( Open, Close );
 122     set_category( CAT_INPUT );
 123     set_subcategory( SUBCAT_INPUT_DEMUX );
 124
 125     add_bool( "mkv-use-ordered-chapters", 1, NULL,
 126             N_("Ordered chapters"),
 127             N_("Play ordered chapters as specified in the segment"), VLC_TRUE );
 128
 129     add_bool( "mkv-use-chapter-codec", 1, NULL,
 130             N_("Chapter codecs"),
 131             N_("Use chapter codecs found in the segment"), VLC_TRUE );
 132
 133     add_bool( "mkv-seek-percent", 0, NULL,
 134             N_("Seek based on percent not time"),
 135             N_("Seek based on percent not time"), VLC_TRUE );
 136
 137     add_bool( "mkv-use-dummy", 0, NULL,
 138             N_("Dummy Elements"),
 139             N_("Read and discard unknown EBML elements (not good for broken files)"), VLC_TRUE );
 140
 141     add_shortcut( "mka" );
 142     add_shortcut( "mkv" );
 143 vlc_module_end();
 144
 145 /*****************************************************************************
 146  * Local prototypes
 147  *****************************************************************************/
 148 #ifdef HAVE_ZLIB_H
 149 block_t *block_zlib_decompress( vlc_object_t *p_this, block_t *p_in_block ) {
 150     int result, dstsize, n;
 151     unsigned char *dst;
 152     block_t *p_block;
 153     z_stream d_stream;
 154
 155     d_stream.zalloc = (alloc_func)0;
 156     d_stream.zfree = (free_func)0;
 157     d_stream.opaque = (voidpf)0;
 158     result = inflateInit(&d_stream);
 159     if( result != Z_OK )
 160     {
 161         msg_Dbg( p_this, "inflateInit() failed. Result: %d", result );
 162         return NULL;
 163     }
 164
 165     d_stream.next_in = (Bytef *)p_in_block->p_buffer;
 166     d_stream.avail_in = p_in_block->i_buffer;
 167     n = 0;
 168     p_block = block_New( p_this, 0 );
 169     dst = NULL;
 170     do
 171     {
 172         n++;
 173         p_block = block_Realloc( p_block, 0, n * 1000 );
 174         dst = (unsigned char *)p_block->p_buffer;
 175         d_stream.next_out = (Bytef *)&dst[(n - 1) * 1000];
 176         d_stream.avail_out = 1000;
 177         result = inflate(&d_stream, Z_NO_FLUSH);
 178         if( ( result != Z_OK ) && ( result != Z_STREAM_END ) )
 179         {
 180             msg_Dbg( p_this, "Zlib decompression failed. Result: %d", result );
 181             return NULL;
 182         }
 183     }
 184     while( ( d_stream.avail_out == 0 ) && ( d_stream.avail_in != 0 ) &&
 185            ( result != Z_STREAM_END ) );
 186
 187     dstsize = d_stream.total_out;
 188     inflateEnd( &d_stream );
 189
 190     p_block = block_Realloc( p_block, 0, dstsize );
 191     p_block->i_buffer = dstsize;
 192     block_Release( p_in_block );
 193
 194     return p_block;
 195 }
 196 #endif
 197
 198 /**
 199  * Helper function to print the mkv parse tree
 200  */
 201 static void MkvTree( demux_t & demuxer, int i_level, char *psz_format, ... )
 202 {
 203     va_list args;
 204     if( i_level > 9 )
 205     {
 206         msg_Err( &demuxer, "too deep tree" );
 207         return;
 208     }
 209     va_start( args, psz_format );
 210     static char *psz_foo = "|   |   |   |   |   |   |   |   |   |";
 211     char *psz_foo2 = (char*)malloc( ( i_level * 4 + 3 + strlen( psz_format ) ) * sizeof(char) );
 212     strncpy( psz_foo2, psz_foo, 4 * i_level );
 213     psz_foo2[ 4 * i_level ] = '+';
 214     psz_foo2[ 4 * i_level + 1 ] = ' ';
 215     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 216     __msg_GenericVa( VLC_OBJECT(&demuxer), VLC_MSG_DBG, "mkv", psz_foo2, args );
 217     free( psz_foo2 );
 218     va_end( args );
 219 }
 220
 221 /*****************************************************************************
 222  * Stream managment
 223  *****************************************************************************/
 224 class vlc_stream_io_callback: public IOCallback
 225 {
 226   private:
 227     stream_t       *s;
 228     vlc_bool_t     mb_eof;
 229
 230   public:
 231     vlc_stream_io_callback( stream_t * );
 232
 233     virtual uint32   read            ( void *p_buffer, size_t i_size);
 234     virtual void     setFilePointer  ( int64_t i_offset, seek_mode mode = seek_beginning );
 235     virtual size_t   write           ( const void *p_buffer, size_t i_size);
 236     virtual uint64   getFilePointer  ( void );
 237     virtual void     close           ( void );
 238 };
 239
 240 /*****************************************************************************
 241  * Ebml Stream parser
 242  *****************************************************************************/
 243 class EbmlParser
 244 {
 245   public:
 246     EbmlParser( EbmlStream *es, EbmlElement *el_start, demux_t *p_demux );
 247     virtual ~EbmlParser( void );
 248
 249     void Up( void );
 250     void Down( void );
 251     void Reset( demux_t *p_demux );
 252     EbmlElement *Get( void );
 253     void        Keep( void );
 254
 255     int GetLevel( void );
 256
 257   private:
 258     EbmlStream  *m_es;
 259     int         mi_level;
 260     EbmlElement *m_el[10];
 261     int64_t      mi_remain_size[10];
 262
 263     EbmlElement *m_got;
 264
 265     int         mi_user_level;
 266     vlc_bool_t  mb_keep;
 267     vlc_bool_t  mb_dummy;
 268 };
 269
 270
 271 /*****************************************************************************
 272  * Some functions to manipulate memory
 273  *****************************************************************************/
 274 #define GetFOURCC( p )  __GetFOURCC( (uint8_t*)p )
 275 static vlc_fourcc_t __GetFOURCC( uint8_t *p )
 276 {
 277     return VLC_FOURCC( p[0], p[1], p[2], p[3] );
 278 }
 279
 280 /*****************************************************************************
 281  * definitions of structures and functions used by this plugins
 282  *****************************************************************************/
 283 typedef struct
 284 {
 285     vlc_bool_t   b_default;
 286     vlc_bool_t   b_enabled;
 287     unsigned int i_number;
 288
 289     int          i_extra_data;
 290     uint8_t      *p_extra_data;
 291
 292     char         *psz_codec;
 293
 294     uint64_t     i_default_duration;
 295     float        f_timecodescale;
 296
 297     /* video */
 298     es_format_t fmt;
 299     float       f_fps;
 300     es_out_id_t *p_es;
 301
 302     vlc_bool_t      b_inited;
 303     /* data to be send first */
 304     int             i_data_init;
 305     uint8_t         *p_data_init;
 306
 307     /* hack : it's for seek */
 308     vlc_bool_t      b_search_keyframe;
 309     vlc_bool_t      b_silent;
 310
 311     /* informative */
 312     char         *psz_codec_name;
 313     char         *psz_codec_settings;
 314     char         *psz_codec_info_url;
 315     char         *psz_codec_download_url;
 316
 317     /* encryption/compression */
 318     int           i_compression_type;
 319
 320 } mkv_track_t;
 321
 322 typedef struct
 323 {
 324     int     i_track;
 325     int     i_block_number;
 326
 327     int64_t i_position;
 328     int64_t i_time;
 329
 330     vlc_bool_t b_key;
 331 } mkv_index_t;
 332
 333 class chapter_codec_cmds_c
 334 {
 335 public:
 336     virtual ~chapter_codec_cmds_c() {}
 337
 338     void SetPrivate( const KaxChapterProcessPrivate & private_data )
 339     {
 340         m_private_data = *( new KaxChapterProcessPrivate( private_data ) );
 341     }
 342
 343     void AddCommand( const KaxChapterProcessCommand & command );
 344
 345     virtual bool Enter() { return true; }
 346     virtual bool Leave() { return true; }
 347
 348 protected:
 349     KaxChapterProcessPrivate m_private_data;
 350
 351     std::vector<KaxChapterProcessData> enter_cmds;
 352     std::vector<KaxChapterProcessData> during_cmds;
 353     std::vector<KaxChapterProcessData> leave_cmds;
 354 };
 355
 356 class dvd_command_interpretor_c
 357 {
 358 public:
 359     dvd_command_interpretor_c()
 360     {
 361         memset( p_GPRM, 0, sizeof(p_GPRM) );
 362         memset( p_SPRM, 0, sizeof(p_SPRM) );
 363         p_SPRM[ 1 ] = 15;
 364         p_SPRM[ 2 ] = 62;
 365         p_SPRM[ 3 ] = 1;
 366         p_SPRM[ 4 ] = 1;
 367         p_SPRM[ 7 ] = 1;
 368         p_SPRM[ 8 ] = 1;
 369         p_SPRM[ 16 ] = 0xFFFFu;
 370         p_SPRM[ 18 ] = 0xFFFFu;
 371     }
 372
 373     bool Interpret( const binary * p_command, size_t i_size = 8 );
 374
 375 protected:
 376     uint16 GetGPRM( size_t index ) const
 377     {
 378         if ( index >= 0 && index < 16 )
 379             return p_GPRM[ index ];
 380         else return 0;
 381     }
 382
 383     uint16 GetSPRM( size_t index ) const
 384     {
 385         // 21,22,23 reserved for future use
 386         if ( index >= 0 && index < 21 )
 387             return p_SPRM[ index ];
 388         else return 0;
 389     }
 390
 391     bool SetGPRM( size_t index, uint16 value )
 392     {
 393         if ( index >= 0 && index < 16 )
 394         {
 395             p_GPRM[ index ] = value;
 396             return true;
 397         }
 398         return false;
 399     }
 400
 401     bool SetSPRM( size_t index, uint16 value )
 402     {
 403         if ( index > 0 && index <= 13 && index != 12 )
 404         {
 405             p_SPRM[ index ] = value;
 406             return true;
 407         }
 408         return false;
 409     }
 410
 411     uint16 p_GPRM[16];
 412     uint16 p_SPRM[24];
 413
 414     static const uint16 CMD_JUMP_TT = 0x3002;
 415 };
 416
 417 class dvd_chapter_codec_c : public chapter_codec_cmds_c
 418 {
 419 public:
 420     bool Enter();
 421     bool Leave();
 422
 423 protected:
 424     dvd_command_interpretor_c interpretor;
 425 };
 426
 427 class matroska_script_codec_c : public chapter_codec_cmds_c
 428 {
 429 };
 430
 431 class chapter_translation_c
 432 {
 433 public:
 434     KaxChapterTranslateID  translated;
 435     unsigned int           codec_id;
 436     std::vector<uint64_t>  editions;
 437 };
 438
 439 class chapter_item_c
 440 {
 441 public:
 442     chapter_item_c()
 443     :i_start_time(0)
 444     ,i_end_time(-1)
 445     ,i_user_start_time(-1)
 446     ,i_user_end_time(-1)
 447     ,i_seekpoint_num(-1)
 448     ,b_display_seekpoint(true)
 449     ,psz_parent(NULL)
 450     {}
 451
 452     ~chapter_item_c()
 453     {
 454         std::vector<chapter_codec_cmds_c*>::iterator index = codecs.begin();
 455         while ( index != codecs.end() )
 456         {
 457             delete (*index);
 458             index++;
 459         }
 460         std::vector<chapter_item_c*>::iterator index_ = sub_chapters.begin();
 461         while ( index_ != sub_chapters.end() )
 462         {
 463             delete (*index_);
 464             index_++;
 465         }
 466     }
 467
 468     int64_t RefreshChapters( bool b_ordered, int64_t i_prev_user_time );
 469     void PublishChapters( input_title_t & title, int i_level );
 470     chapter_item_c * FindTimecode( mtime_t i_timecode );
 471     void Append( const chapter_item_c & edition );
 472     chapter_item_c * FindChapter( const chapter_item_c & chapter );
 473
 474     int64_t                     i_start_time, i_end_time;
 475     int64_t                     i_user_start_time, i_user_end_time; /* the time in the stream when an edition is ordered */
 476     std::vector<chapter_item_c*> sub_chapters;
 477     int                         i_seekpoint_num;
 478     int64_t                     i_uid;
 479     bool                        b_display_seekpoint;
 480     std::string                 psz_name;
 481     chapter_item_c              *psz_parent;
 482
 483     std::vector<chapter_codec_cmds_c*> codecs;
 484
 485     bool operator<( const chapter_item_c & item ) const
 486     {
 487         return ( i_user_start_time < item.i_user_start_time || (i_user_start_time == item.i_user_start_time && i_user_end_time < item.i_user_end_time) );
 488     }
 489
 490     bool Enter();
 491     bool Leave();
 492 };
 493
 494 class chapter_edition_c : public chapter_item_c
 495 {
 496 public:
 497     chapter_edition_c()
 498     :b_ordered(false)
 499     {}
 500
 501     void RefreshChapters( );
 502     mtime_t Duration() const;
 503     void PublishChapters( input_title_t & title );
 504
 505     bool                        b_ordered;
 506 };
 507
 508 class demux_sys_t;
 509
 510 class matroska_segment_c
 511 {
 512 public:
 513     matroska_segment_c( demux_sys_t & demuxer, EbmlStream & estream )
 514         :segment(NULL)
 515         ,es(estream)
 516         ,i_timescale(MKVD_TIMECODESCALE)
 517         ,i_duration(-1)
 518         ,i_start_time(0)
 519         ,i_cues_position(-1)
 520         ,i_chapters_position(-1)
 521         ,i_tags_position(-1)
 522         ,cluster(NULL)
 523         ,i_start_pos(0)
 524         ,b_cues(VLC_FALSE)
 525         ,i_index(0)
 526         ,i_index_max(1024)
 527         ,psz_muxing_application(NULL)
 528         ,psz_writing_application(NULL)
 529         ,psz_segment_filename(NULL)
 530         ,psz_title(NULL)
 531         ,psz_date_utc(NULL)
 532         ,i_default_edition(0)
 533         ,sys(demuxer)
 534         ,ep(NULL)
 535         ,b_preloaded(false)
 536     {
 537         index = (mkv_index_t*)malloc( sizeof( mkv_index_t ) * i_index_max );
 538     }
 539
 540     virtual ~matroska_segment_c()
 541     {
 542         for( size_t i_track = 0; i_track < tracks.size(); i_track++ )
 543         {
 544 #define tk  tracks[i_track]
 545             if( tk->fmt.psz_description )
 546             {
 547                 free( tk->fmt.psz_description );
 548             }
 549             if( tk->psz_codec )
 550             {
 551                 free( tk->psz_codec );
 552             }
 553             if( tk->fmt.psz_language )
 554             {
 555                 free( tk->fmt.psz_language );
 556             }
 557             delete tk;
 558 #undef tk
 559         }
 560
 561         if( psz_writing_application )
 562         {
 563             free( psz_writing_application );
 564         }
 565         if( psz_muxing_application )
 566         {
 567             free( psz_muxing_application );
 568         }
 569         if( psz_segment_filename )
 570         {
 571             free( psz_segment_filename );
 572         }
 573         if( psz_title )
 574         {
 575             free( psz_title );
 576         }
 577         if( psz_date_utc )
 578         {
 579             free( psz_date_utc );
 580         }
 581         if ( index )
 582             free( index );
 583
 584         delete ep;
 585
 586         std::vector<chapter_edition_c*>::iterator index = stored_editions.begin();
 587         while ( index != stored_editions.end() )
 588         {
 589             delete (*index);
 590             index++;
 591         }
 592     }
 593
 594     KaxSegment              *segment;
 595     EbmlStream              & es;
 596
 597     /* time scale */
 598     uint64_t                i_timescale;
 599
 600     /* duration of the segment */
 601     mtime_t                 i_duration;
 602     mtime_t                 i_start_time;
 603
 604     /* all tracks */
 605     std::vector<mkv_track_t*> tracks;
 606
 607     /* from seekhead */
 608     int64_t                 i_cues_position;
 609     int64_t                 i_chapters_position;
 610     int64_t                 i_tags_position;
 611
 612     KaxCluster              *cluster;
 613     int64_t                 i_start_pos;
 614     KaxSegmentUID           segment_uid;
 615     KaxPrevUID              prev_segment_uid;
 616     KaxNextUID              next_segment_uid;
 617
 618     vlc_bool_t              b_cues;
 619     int                     i_index;
 620     int                     i_index_max;
 621     mkv_index_t             *index;
 622
 623     /* info */
 624     char                    *psz_muxing_application;
 625     char                    *psz_writing_application;
 626     char                    *psz_segment_filename;
 627     char                    *psz_title;
 628     char                    *psz_date_utc;
 629
 630     std::vector<chapter_edition_c*> stored_editions;
 631     int                             i_default_edition;
 632
 633     std::vector<chapter_translation_c> translations;
 634     std::vector<KaxSegmentFamily>  families;
 635
 636     demux_sys_t                    & sys;
 637     EbmlParser                     *ep;
 638     bool                           b_preloaded;
 639
 640     bool Preload( );
 641     bool PreloadFamily( const matroska_segment_c & segment );
 642     void ParseInfo( KaxInfo *info );
 643     void ParseChapters( KaxChapters *chapters );
 644     void ParseSeekHead( KaxSeekHead *seekhead );
 645     void ParseTracks( KaxTracks *tracks );
 646     void ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters );
 647     void ParseTrackEntry( KaxTrackEntry *m );
 648     void ParseCluster( );
 649     void IndexAppendCluster( KaxCluster *cluster );
 650     void LoadCues( );
 651     void LoadTags( );
 652     void InformationCreate( );
 653     void Seek( mtime_t i_date, mtime_t i_time_offset );
 654     int BlockGet( KaxBlock **pp_block, int64_t *pi_ref1, int64_t *pi_ref2, int64_t *pi_duration );
 655     bool Select( mtime_t i_start_time );
 656     void UnSelect( );
 657     static bool CompareSegmentUIDs( const matroska_segment_c * item_a, const matroska_segment_c * item_b );
 658 };
 659
 660 // class holding hard-linked segment together in the playback order
 661 class virtual_segment_c
 662 {
 663 public:
 664     virtual_segment_c( matroska_segment_c *p_segment )
 665         :i_current_segment(0)
 666         ,p_editions(NULL)
 667         ,i_current_edition(-1)
 668         ,psz_current_chapter(NULL)
 669     {
 670         linked_segments.push_back( p_segment );
 671
 672         AppendUID( p_segment->segment_uid );
 673         AppendUID( p_segment->prev_segment_uid );
 674         AppendUID( p_segment->next_segment_uid );
 675     }
 676
 677     void Sort();
 678     size_t AddSegment( matroska_segment_c *p_segment );
 679     void PreloadLinked( );
 680     mtime_t Duration( ) const;
 681     void LoadCues( );
 682     void Seek( demux_t & demuxer, mtime_t i_date, mtime_t i_time_offset, chapter_item_c *psz_chapter );
 683
 684     inline chapter_edition_c *Edition()
 685     {
 686         if ( i_current_edition >= 0 && size_t(i_current_edition) < p_editions->size() )
 687             return (*p_editions)[i_current_edition];
 688         return NULL;
 689     }
 690
 691     inline bool EditionIsOrdered() const
 692     {
 693         return (p_editions->size() != 0 && i_current_edition >= 0 && (*p_editions)[i_current_edition]->b_ordered);
 694     }
 695
 696     matroska_segment_c * Segment() const
 697     {
 698         if ( linked_segments.size() == 0 || i_current_segment >= linked_segments.size() )
 699             return NULL;
 700         return linked_segments[i_current_segment];
 701     }
 702
 703     inline const chapter_item_c *CurrentChapter() const {
 704         return psz_current_chapter;
 705     }
 706
 707     bool SelectNext()
 708     {
 709         if ( i_current_segment < linked_segments.size()-1 )
 710         {
 711             i_current_segment++;
 712             return true;
 713         }
 714         return false;
 715     }
 716
 717 /* TODO handle/merge chapters here */
 718     void UpdateCurrentToChapter( demux_t & demux );
 719     bool Select( input_title_t & title );
 720
 721 protected:
 722     std::vector<matroska_segment_c*> linked_segments;
 723     std::vector<KaxSegmentUID>       linked_uids;
 724     size_t                           i_current_segment;
 725
 726     std::vector<chapter_edition_c*>  *p_editions;
 727     int                              i_current_edition;
 728     chapter_item_c                   *psz_current_chapter;
 729
 730     void                             AppendUID( const EbmlBinary & UID );
 731 };
 732
 733 class matroska_stream_c
 734 {
 735 public:
 736     matroska_stream_c( demux_sys_t & demuxer )
 737         :p_in(NULL)
 738         ,p_es(NULL)
 739         ,sys(demuxer)
 740     {}
 741
 742     virtual ~matroska_stream_c()
 743     {
 744         delete p_in;
 745         delete p_es;
 746     }
 747
 748     IOCallback         *p_in;
 749     EbmlStream         *p_es;
 750
 751     std::vector<matroska_segment_c*> segments;
 752
 753     demux_sys_t                      & sys;
 754 };
 755
 756 class demux_sys_t
 757 {
 758 public:
 759     demux_sys_t( demux_t & demux )
 760         :demuxer(demux)
 761         ,i_pts(0)
 762         ,i_start_pts(0)
 763         ,i_chapter_time(0)
 764         ,meta(NULL)
 765         ,title(NULL)
 766         ,p_current_segment(NULL)
 767         ,f_duration(-1.0)
 768     {}
 769
 770     virtual ~demux_sys_t()
 771     {
 772         for (size_t i=0; i<streams.size(); i++)
 773             delete streams[i];
 774         for ( size_t i=0; i<opened_segments.size(); i++ )
 775             delete opened_segments[i];
 776     }
 777
 778     /* current data */
 779     demux_t                 & demuxer;
 780
 781     mtime_t                 i_pts;
 782     mtime_t                 i_start_pts;
 783     mtime_t                 i_chapter_time;
 784
 785     vlc_meta_t              *meta;
 786
 787     input_title_t           *title;
 788
 789     std::vector<matroska_stream_c*>  streams;
 790     std::vector<matroska_segment_c*> opened_segments;
 791     virtual_segment_c                *p_current_segment;
 792
 793     /* duration of the stream */
 794     float                   f_duration;
 795
 796     matroska_segment_c *FindSegment( const EbmlBinary & uid ) const;
 797     void PreloadFamily( const matroska_segment_c & of_segment );
 798     void PreloadLinked( matroska_segment_c *p_segment );
 799     bool PreparePlayback( );
 800     matroska_stream_c *AnalyseAllSegmentsFound( EbmlStream *p_estream );
 801 };
 802
 803 static int  Demux  ( demux_t * );
 804 static int  Control( demux_t *, int, va_list );
 805 static void Seek   ( demux_t *, mtime_t i_date, double f_percent, chapter_item_c *psz_chapter );
 806
 807 #define MKV_IS_ID( el, C ) ( EbmlId( (*el) ) == C::ClassInfos.GlobalId )
 808
 809 static char *UTF8ToStr          ( const UTFstring &u );
 810
 811 /*****************************************************************************
 812  * Open: initializes matroska demux structures
 813  *****************************************************************************/
 814 static int Open( vlc_object_t * p_this )
 815 {
 816     demux_t            *p_demux = (demux_t*)p_this;
 817     demux_sys_t        *p_sys;
 818     matroska_stream_c  *p_stream;
 819     matroska_segment_c *p_segment;
 820     uint8_t            *p_peek;
 821     std::string        s_path, s_filename;
 822     vlc_stream_io_callback *p_io_callback;
 823     EbmlStream         *p_io_stream;
 824
 825     /* peek the begining */
 826     if( stream_Peek( p_demux->s, &p_peek, 4 ) < 4 ) return VLC_EGENERIC;
 827
 828     /* is a valid file */
 829     if( p_peek[0] != 0x1a || p_peek[1] != 0x45 ||
 830         p_peek[2] != 0xdf || p_peek[3] != 0xa3 ) return VLC_EGENERIC;
 831
 832     /* Set the demux function */
 833     p_demux->pf_demux   = Demux;
 834     p_demux->pf_control = Control;
 835     p_demux->p_sys      = p_sys = new demux_sys_t( *p_demux );
 836
 837     p_io_callback = new vlc_stream_io_callback( p_demux->s );
 838     p_io_stream = new EbmlStream( *p_io_callback );
 839
 840     if( p_io_stream == NULL )
 841     {
 842         msg_Err( p_demux, "failed to create EbmlStream" );
 843         delete p_io_callback;
 844         delete p_sys;
 845         return VLC_EGENERIC;
 846     }
 847
 848     p_stream = p_sys->AnalyseAllSegmentsFound( p_io_stream );
 849     if( p_stream == NULL )
 850     {
 851         msg_Err( p_demux, "cannot find KaxSegment" );
 852         goto error;
 853     }
 854     p_sys->streams.push_back( p_stream );
 855
 856     p_stream->p_in = p_io_callback;
 857     p_stream->p_es = p_io_stream;
 858
 859     for (size_t i=0; i<p_stream->segments.size(); i++)
 860     {
 861         p_stream->segments[i]->Preload();
 862     }
 863
 864     p_segment = p_stream->segments[0];
 865     if( p_segment->cluster != NULL )
 866     {
 867         msg_Warn( p_demux, "cannot find any cluster, damaged file ?" );
 868
 869         // reset the stream reading to the first cluster of the segment used
 870         p_stream->p_in->setFilePointer( p_segment->cluster->GetElementPosition() );
 871     }
 872
 873     /* get the files from the same dir from the same family (based on p_demux->psz_path) */
 874     if (p_demux->psz_path[0] != '\0' && !strcmp(p_demux->psz_access, ""))
 875     {
 876         // assume it's a regular file
 877         // get the directory path
 878         s_path = p_demux->psz_path;
 879         if (s_path.at(s_path.length() - 1) == DIRECTORY_SEPARATOR)
 880         {
 881             s_path = s_path.substr(0,s_path.length()-1);
 882         }
 883         else
 884         {
 885             if (s_path.find_last_of(DIRECTORY_SEPARATOR) > 0)
 886             {
 887                 s_path = s_path.substr(0,s_path.find_last_of(DIRECTORY_SEPARATOR));
 888             }
 889         }
 890
 891         struct dirent *p_file_item;
 892         DIR *p_src_dir = opendir(s_path.c_str());
 893
 894         if (p_src_dir != NULL)
 895         {
 896             while ((p_file_item = (dirent *) readdir(p_src_dir)))
 897             {
 898                 if (strlen(p_file_item->d_name) > 4)
 899                 {
 900                     s_filename = s_path + DIRECTORY_SEPARATOR + p_file_item->d_name;
 901
 902                     if (!s_filename.compare(p_demux->psz_path))
 903                         continue; // don't reuse the original opened file
 904
 905 #if defined(__GNUC__) && (__GNUC__ < 3)
 906                     if (!s_filename.compare("mkv", s_filename.length() - 3, 3) ||
 907                         !s_filename.compare("mka", s_filename.length() - 3, 3))
 908 #else
 909                     if (!s_filename.compare(s_filename.length() - 3, 3, "mkv") ||
 910                         !s_filename.compare(s_filename.length() - 3, 3, "mka"))
 911 #endif
 912                     {
 913                         // test wether this file belongs to the our family
 914                         StdIOCallback *p_file_io = new StdIOCallback(s_filename.c_str(), MODE_READ);
 915                         EbmlStream *p_estream = new EbmlStream(*p_file_io);
 916
 917                         p_stream = p_sys->AnalyseAllSegmentsFound( p_estream );
 918                         if ( p_stream == NULL )
 919                         {
 920                             msg_Dbg( p_demux, "the file '%s' will not be used", s_filename.c_str() );
 921                             delete p_estream;
 922                             delete p_file_io;
 923                         }
 924                         else
 925                         {
 926                             p_stream->p_in = p_file_io;
 927                             p_stream->p_es = p_estream;
 928                             p_sys->streams.push_back( p_stream );
 929                         }
 930                     }
 931                 }
 932             }
 933             closedir( p_src_dir );
 934         }
 935     }
 936
 937     p_sys->PreloadFamily( *p_segment );
 938     p_sys->PreloadLinked( p_segment );
 939     if ( !p_sys->PreparePlayback( ) )
 940     {
 941         msg_Err( p_demux, "cannot use the segment" );
 942         goto error;
 943     }
 944
 945     return VLC_SUCCESS;
 946
 947 error:
 948     delete p_sys;
 949     return VLC_EGENERIC;
 950 }
 951
 952 /*****************************************************************************
 953  * Close: frees unused data
 954  *****************************************************************************/
 955 static void Close( vlc_object_t *p_this )
 956 {
 957     demux_t     *p_demux = (demux_t*)p_this;
 958     demux_sys_t *p_sys   = p_demux->p_sys;
 959
 960     delete p_sys;
 961 }
 962
 963 /*****************************************************************************
 964  * Control:
 965  *****************************************************************************/
 966 static int Control( demux_t *p_demux, int i_query, va_list args )
 967 {
 968     demux_sys_t        *p_sys = p_demux->p_sys;
 969     int64_t     *pi64;
 970     double      *pf, f;
 971     int         i_skp;
 972
 973     vlc_meta_t **pp_meta;
 974
 975     switch( i_query )
 976     {
 977         case DEMUX_GET_META:
 978             pp_meta = (vlc_meta_t**)va_arg( args, vlc_meta_t** );
 979             *pp_meta = vlc_meta_Duplicate( p_sys->meta );
 980             return VLC_SUCCESS;
 981
 982         case DEMUX_GET_LENGTH:
 983             pi64 = (int64_t*)va_arg( args, int64_t * );
 984             if( p_sys->f_duration > 0.0 )
 985             {
 986                 *pi64 = (int64_t)(p_sys->f_duration * 1000);
 987                 return VLC_SUCCESS;
 988             }
 989             return VLC_EGENERIC;
 990
 991         case DEMUX_GET_POSITION:
 992             pf = (double*)va_arg( args, double * );
 993             if ( p_sys->f_duration > 0.0 )
 994                 *pf = (double)(p_sys->i_pts >= p_sys->i_start_pts ? p_sys->i_pts : p_sys->i_start_pts ) / (1000.0 * p_sys->f_duration);
 995             return VLC_SUCCESS;
 996
 997         case DEMUX_SET_POSITION:
 998             f = (double)va_arg( args, double );
 999             Seek( p_demux, -1, f, NULL );
1000             return VLC_SUCCESS;
1001
1002         case DEMUX_GET_TIME:
1003             pi64 = (int64_t*)va_arg( args, int64_t * );
1004             *pi64 = p_sys->i_pts;
1005             return VLC_SUCCESS;
1006
1007         case DEMUX_GET_TITLE_INFO:
1008             if( p_sys->title && p_sys->title->i_seekpoint > 0 )
1009             {
1010                 input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
1011                 int *pi_int    = (int*)va_arg( args, int* );
1012
1013                 *pi_int = 1;
1014                 *ppp_title = (input_title_t**)malloc( sizeof( input_title_t**) );
1015
1016                 (*ppp_title)[0] = vlc_input_title_Duplicate( p_sys->title );
1017
1018                 return VLC_SUCCESS;
1019             }
1020             return VLC_EGENERIC;
1021
1022         case DEMUX_SET_TITLE:
1023             /* TODO handle editions as titles & DVD titles as well */
1024             if( p_sys->title && p_sys->title->i_seekpoint > 0 )
1025             {
1026                 return VLC_SUCCESS;
1027             }
1028             return VLC_EGENERIC;
1029
1030         case DEMUX_SET_SEEKPOINT:
1031             /* FIXME do a better implementation */
1032             i_skp = (int)va_arg( args, int );
1033
1034             if( p_sys->title && i_skp < p_sys->title->i_seekpoint)
1035             {
1036                 Seek( p_demux, (int64_t)p_sys->title->seekpoint[i_skp]->i_time_offset, -1, NULL);
1037                 p_demux->info.i_seekpoint |= INPUT_UPDATE_SEEKPOINT;
1038                 p_demux->info.i_seekpoint = i_skp;
1039                 return VLC_SUCCESS;
1040             }
1041             return VLC_EGENERIC;
1042
1043         case DEMUX_SET_TIME:
1044         case DEMUX_GET_FPS:
1045         default:
1046             return VLC_EGENERIC;
1047     }
1048 }
1049
1050 int matroska_segment_c::BlockGet( KaxBlock **pp_block, int64_t *pi_ref1, int64_t *pi_ref2, int64_t *pi_duration )
1051 {
1052     *pp_block = NULL;
1053     *pi_ref1  = -1;
1054     *pi_ref2  = -1;
1055
1056     for( ;; )
1057     {
1058         EbmlElement *el;
1059         int         i_level;
1060
1061         el = ep->Get();
1062         i_level = ep->GetLevel();
1063
1064         if( el == NULL && *pp_block != NULL )
1065         {
1066             /* update the index */
1067 #define idx index[i_index - 1]
1068             if( i_index > 0 && idx.i_time == -1 )
1069             {
1070                 idx.i_time        = (*pp_block)->GlobalTimecode() / (mtime_t)1000;
1071                 idx.b_key         = *pi_ref1 == -1 ? VLC_TRUE : VLC_FALSE;
1072             }
1073 #undef idx
1074             return VLC_SUCCESS;
1075         }
1076
1077         if( el == NULL )
1078         {
1079             if( ep->GetLevel() > 1 )
1080             {
1081                 ep->Up();
1082                 continue;
1083             }
1084             msg_Warn( &sys.demuxer, "EOF" );
1085             return VLC_EGENERIC;
1086         }
1087
1088         /* do parsing */
1089         if( i_level == 1 )
1090         {
1091             if( MKV_IS_ID( el, KaxCluster ) )
1092             {
1093                 cluster = (KaxCluster*)el;
1094
1095                 /* add it to the index */
1096                 if( i_index == 0 ||
1097                     ( i_index > 0 && index[i_index - 1].i_position < (int64_t)cluster->GetElementPosition() ) )
1098                 {
1099                     IndexAppendCluster( cluster );
1100                 }
1101
1102                 // reset silent tracks
1103                 for (size_t i=0; i<tracks.size(); i++)
1104                 {
1105                     tracks[i]->b_silent = VLC_FALSE;
1106                 }
1107
1108                 ep->Down();
1109             }
1110             else if( MKV_IS_ID( el, KaxCues ) )
1111             {
1112                 msg_Warn( &sys.demuxer, "find KaxCues FIXME" );
1113                 return VLC_EGENERIC;
1114             }
1115             else
1116             {
1117                 msg_Dbg( &sys.demuxer, "unknown (%s)", typeid( el ).name() );
1118             }
1119         }
1120         else if( i_level == 2 )
1121         {
1122             if( MKV_IS_ID( el, KaxClusterTimecode ) )
1123             {
1124                 KaxClusterTimecode &ctc = *(KaxClusterTimecode*)el;
1125
1126                 ctc.ReadData( es.I_O(), SCOPE_ALL_DATA );
1127                 cluster->InitTimecode( uint64( ctc ), i_timescale );
1128             }
1129             else if( MKV_IS_ID( el, KaxClusterSilentTracks ) )
1130             {
1131                 ep->Down();
1132             }
1133             else if( MKV_IS_ID( el, KaxBlockGroup ) )
1134             {
1135                 ep->Down();
1136             }
1137         }
1138         else if( i_level == 3 )
1139         {
1140             if( MKV_IS_ID( el, KaxBlock ) )
1141             {
1142                 *pp_block = (KaxBlock*)el;
1143
1144                 (*pp_block)->ReadData( es.I_O() );
1145                 (*pp_block)->SetParent( *cluster );
1146
1147                 ep->Keep();
1148             }
1149             else if( MKV_IS_ID( el, KaxBlockDuration ) )
1150             {
1151                 KaxBlockDuration &dur = *(KaxBlockDuration*)el;
1152
1153                 dur.ReadData( es.I_O() );
1154                 *pi_duration = uint64( dur );
1155             }
1156             else if( MKV_IS_ID( el, KaxReferenceBlock ) )
1157             {
1158                 KaxReferenceBlock &ref = *(KaxReferenceBlock*)el;
1159
1160                 ref.ReadData( es.I_O() );
1161                 if( *pi_ref1 == -1 )
1162                 {
1163                     *pi_ref1 = int64( ref );
1164                 }
1165                 else
1166                 {
1167                     *pi_ref2 = int64( ref );
1168                 }
1169             }
1170             else if( MKV_IS_ID( el, KaxClusterSilentTrackNumber ) )
1171             {
1172                 KaxClusterSilentTrackNumber &track_num = *(KaxClusterSilentTrackNumber*)el;
1173                 track_num.ReadData( es.I_O() );
1174                 // find the track
1175                 for (size_t i=0; i<tracks.size(); i++)
1176                 {
1177                     if ( tracks[i]->i_number == uint32(track_num))
1178                     {
1179                         tracks[i]->b_silent = VLC_TRUE;
1180                         break;
1181                     }
1182                 }
1183             }
1184         }
1185         else
1186         {
1187             msg_Err( &sys.demuxer, "invalid level = %d", i_level );
1188             return VLC_EGENERIC;
1189         }
1190     }
1191 }
1192
1193 static block_t *MemToBlock( demux_t *p_demux, uint8_t *p_mem, int i_mem)
1194 {
1195     block_t *p_block;
1196     if( !(p_block = block_New( p_demux, i_mem ) ) ) return NULL;
1197     memcpy( p_block->p_buffer, p_mem, i_mem );
1198     //p_block->i_rate = p_input->stream.control.i_rate;
1199     return p_block;
1200 }
1201
1202 static void BlockDecode( demux_t *p_demux, KaxBlock *block, mtime_t i_pts,
1203                          mtime_t i_duration )
1204 {
1205     demux_sys_t        *p_sys = p_demux->p_sys;
1206     matroska_segment_c *p_segment = p_sys->p_current_segment->Segment();
1207
1208     size_t          i_track;
1209     unsigned int    i;
1210     vlc_bool_t      b;
1211
1212 #define tk  p_segment->tracks[i_track]
1213     for( i_track = 0; i_track < p_segment->tracks.size(); i_track++ )
1214     {
1215         if( tk->i_number == block->TrackNum() )
1216         {
1217             break;
1218         }
1219     }
1220
1221     if( i_track >= p_segment->tracks.size() )
1222     {
1223         msg_Err( p_demux, "invalid track number=%d", block->TrackNum() );
1224         return;
1225     }
1226     if( tk->p_es == NULL )
1227     {
1228         msg_Err( p_demux, "unknown track number=%d", block->TrackNum() );
1229         return;
1230     }
1231     if( i_pts < p_sys->i_start_pts && tk->fmt.i_cat == AUDIO_ES )
1232     {
1233         return; /* discard audio packets that shouldn't be rendered */
1234     }
1235
1236     es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
1237     if( !b )
1238     {
1239         tk->b_inited = VLC_FALSE;
1240         return;
1241     }
1242
1243     /* First send init data */
1244     if( !tk->b_inited && tk->i_data_init > 0 )
1245     {
1246         block_t *p_init;
1247
1248         msg_Dbg( p_demux, "sending header (%d bytes)", tk->i_data_init );
1249         p_init = MemToBlock( p_demux, tk->p_data_init, tk->i_data_init );
1250         if( p_init ) es_out_Send( p_demux->out, tk->p_es, p_init );
1251     }
1252     tk->b_inited = VLC_TRUE;
1253
1254
1255     for( i = 0; i < block->NumberFrames(); i++ )
1256     {
1257         block_t *p_block;
1258         DataBuffer &data = block->GetBuffer(i);
1259
1260         p_block = MemToBlock( p_demux, data.Buffer(), data.Size() );
1261
1262         if( p_block == NULL )
1263         {
1264             break;
1265         }
1266
1267 #if defined(HAVE_ZLIB_H)
1268         if( tk->i_compression_type )
1269         {
1270             p_block = block_zlib_decompress( VLC_OBJECT(p_demux), p_block );
1271         }
1272 #endif
1273
1274         // TODO implement correct timestamping when B frames are used
1275         if( tk->fmt.i_cat != VIDEO_ES )
1276         {
1277             p_block->i_dts = p_block->i_pts = i_pts;
1278         }
1279         else
1280         {
1281             p_block->i_dts = i_pts;
1282             p_block->i_pts = 0;
1283         }
1284
1285         if( tk->fmt.i_cat == SPU_ES && strcmp( tk->psz_codec, "S_VOBSUB" ) )
1286         {
1287             p_block->i_length = i_duration * 1000;
1288         }
1289
1290         es_out_Send( p_demux->out, tk->p_es, p_block );
1291
1292         /* use time stamp only for first block */
1293         i_pts = 0;
1294     }
1295
1296 #undef tk
1297 }
1298
1299 matroska_stream_c *demux_sys_t::AnalyseAllSegmentsFound( EbmlStream *p_estream )
1300 {
1301     int i_upper_lvl = 0;
1302     size_t i;
1303     EbmlElement *p_l0, *p_l1, *p_l2;
1304     bool b_keep_stream = false, b_keep_segment;
1305
1306     // verify the EBML Header
1307     p_l0 = p_estream->FindNextID(EbmlHead::ClassInfos, 0xFFFFFFFFL);
1308     if (p_l0 == NULL)
1309     {
1310         return NULL;
1311     }
1312     p_l0->SkipData(*p_estream, EbmlHead_Context);
1313     delete p_l0;
1314
1315     // find all segments in this file
1316     p_l0 = p_estream->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFL);
1317     if (p_l0 == NULL)
1318     {
1319         return NULL;
1320     }
1321
1322     matroska_stream_c *p_stream1 = new matroska_stream_c( *this );
1323
1324     while (p_l0 != 0)
1325     {
1326         if (EbmlId(*p_l0) == KaxSegment::ClassInfos.GlobalId)
1327         {
1328             EbmlParser  *ep;
1329             matroska_segment_c *p_segment1 = new matroska_segment_c( *this, *p_estream );
1330             b_keep_segment = false;
1331
1332             ep = new EbmlParser(p_estream, p_l0, &demuxer );
1333             p_segment1->ep = ep;
1334             p_segment1->segment = (KaxSegment*)p_l0;
1335
1336             while ((p_l1 = ep->Get()))
1337             {
1338                 if (MKV_IS_ID(p_l1, KaxInfo))
1339                 {
1340                     // find the families of this segment
1341                     KaxInfo *p_info = static_cast<KaxInfo*>(p_l1);
1342
1343                     p_info->Read(*p_estream, KaxInfo::ClassInfos.Context, i_upper_lvl, p_l2, true);
1344                     for( i = 0; i < p_info->ListSize(); i++ )
1345                     {
1346                         EbmlElement *l = (*p_info)[i];
1347
1348                         if( MKV_IS_ID( l, KaxSegmentUID ) )
1349                         {
1350                             KaxSegmentUID *p_uid = static_cast<KaxSegmentUID*>(l);
1351                             b_keep_segment = (FindSegment( *p_uid ) == NULL);
1352                             if ( !b_keep_segment )
1353                                 break; // this segment is already known
1354                             opened_segments.push_back( p_segment1 );
1355                             p_segment1->segment_uid = *( new KaxSegmentUID(*p_uid) );
1356                         }
1357                         else if( MKV_IS_ID( l, KaxPrevUID ) )
1358                         {
1359                             p_segment1->prev_segment_uid = *( new KaxPrevUID( *static_cast<KaxPrevUID*>(l) ) );
1360                         }
1361                         else if( MKV_IS_ID( l, KaxNextUID ) )
1362                         {
1363                             p_segment1->next_segment_uid = *( new KaxNextUID( *static_cast<KaxNextUID*>(l) ) );
1364                         }
1365                         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
1366                         {
1367                             KaxSegmentFamily *p_fam = new KaxSegmentFamily( *static_cast<KaxSegmentFamily*>(l) );
1368                             p_segment1->families.push_back( *p_fam );
1369                         }
1370                     }
1371                     break;
1372                 }
1373             }
1374             if ( b_keep_segment )
1375             {
1376                 b_keep_stream = true;
1377                 p_stream1->segments.push_back( p_segment1 );
1378             }
1379             else
1380                 delete p_segment1;
1381         }
1382
1383         p_l0->SkipData(*p_estream, EbmlHead_Context);
1384         p_l0 = p_estream->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFL);
1385     }
1386
1387     if ( !b_keep_stream )
1388     {
1389         delete p_stream1;
1390         p_stream1 = NULL;
1391     }
1392
1393     return p_stream1;
1394 }
1395
1396 bool matroska_segment_c::Select( mtime_t i_start_time )
1397 {
1398     size_t i_track;
1399
1400     /* add all es */
1401     msg_Dbg( &sys.demuxer, "found %d es", tracks.size() );
1402     for( i_track = 0; i_track < tracks.size(); i_track++ )
1403     {
1404 #define tk  tracks[i_track]
1405         if( tk->fmt.i_cat == UNKNOWN_ES )
1406         {
1407             msg_Warn( &sys.demuxer, "invalid track[%d, n=%d]", i_track, tk->i_number );
1408             tk->p_es = NULL;
1409             continue;
1410         }
1411
1412         if( !strcmp( tk->psz_codec, "V_MS/VFW/FOURCC" ) )
1413         {
1414             if( tk->i_extra_data < (int)sizeof( BITMAPINFOHEADER ) )
1415             {
1416                 msg_Err( &sys.demuxer, "missing/invalid BITMAPINFOHEADER" );
1417                 tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1418             }
1419             else
1420             {
1421                 BITMAPINFOHEADER *p_bih = (BITMAPINFOHEADER*)tk->p_extra_data;
1422
1423                 tk->fmt.video.i_width = GetDWLE( &p_bih->biWidth );
1424                 tk->fmt.video.i_height= GetDWLE( &p_bih->biHeight );
1425                 tk->fmt.i_codec       = GetFOURCC( &p_bih->biCompression );
1426
1427                 tk->fmt.i_extra       = GetDWLE( &p_bih->biSize ) - sizeof( BITMAPINFOHEADER );
1428                 if( tk->fmt.i_extra > 0 )
1429                 {
1430                     tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1431                     memcpy( tk->fmt.p_extra, &p_bih[1], tk->fmt.i_extra );
1432                 }
1433             }
1434         }
1435         else if( !strcmp( tk->psz_codec, "V_MPEG1" ) ||
1436                  !strcmp( tk->psz_codec, "V_MPEG2" ) )
1437         {
1438             tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
1439         }
1440         else if( !strncmp( tk->psz_codec, "V_MPEG4", 7 ) )
1441         {
1442             if( !strcmp( tk->psz_codec, "V_MPEG4/MS/V3" ) )
1443             {
1444                 tk->fmt.i_codec = VLC_FOURCC( 'D', 'I', 'V', '3' );
1445             }
1446             else if( !strcmp( tk->psz_codec, "V_MPEG4/ISO/AVC" ) )
1447             {
1448                 tk->fmt.i_codec = VLC_FOURCC( 'a', 'v', 'c', '1' );
1449                 tk->fmt.b_packetized = VLC_FALSE;
1450                 tk->fmt.i_extra = tk->i_extra_data;
1451                 tk->fmt.p_extra = malloc( tk->i_extra_data );
1452                 memcpy( tk->fmt.p_extra,tk->p_extra_data, tk->i_extra_data );
1453             }
1454             else
1455             {
1456                 tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
1457             }
1458         }
1459         else if( !strcmp( tk->psz_codec, "V_QUICKTIME" ) )
1460         {
1461             MP4_Box_t *p_box = (MP4_Box_t*)malloc( sizeof( MP4_Box_t ) );
1462 #ifdef VSLHC
1463             stream_t *p_mp4_stream = stream_MemoryNew( VLC_OBJECT(&sys.demuxer),
1464                                                        tk->p_extra_data,
1465                                                        tk->i_extra_data );
1466 #else
1467             stream_t *p_mp4_stream = stream_MemoryNew( VLC_OBJECT(&sys.demuxer),
1468                                                        tk->p_extra_data,
1469                                                        tk->i_extra_data,
1470                                                        VLC_FALSE );
1471 #endif
1472             MP4_ReadBoxCommon( p_mp4_stream, p_box );
1473             MP4_ReadBox_sample_vide( p_mp4_stream, p_box );
1474             tk->fmt.i_codec = p_box->i_type;
1475             tk->fmt.video.i_width = p_box->data.p_sample_vide->i_width;
1476             tk->fmt.video.i_height = p_box->data.p_sample_vide->i_height;
1477             tk->fmt.i_extra = p_box->data.p_sample_vide->i_qt_image_description;
1478             tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1479             memcpy( tk->fmt.p_extra, p_box->data.p_sample_vide->p_qt_image_description, tk->fmt.i_extra );
1480             MP4_FreeBox_sample_vide( p_box );
1481 #ifdef VSLHC
1482             stream_MemoryDelete( p_mp4_stream, VLC_TRUE );
1483 #else
1484             stream_Delete( p_mp4_stream );
1485 #endif
1486         }
1487         else if( !strcmp( tk->psz_codec, "A_MS/ACM" ) )
1488         {
1489             if( tk->i_extra_data < (int)sizeof( WAVEFORMATEX ) )
1490             {
1491                 msg_Err( &sys.demuxer, "missing/invalid WAVEFORMATEX" );
1492                 tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1493             }
1494             else
1495             {
1496                 WAVEFORMATEX *p_wf = (WAVEFORMATEX*)tk->p_extra_data;
1497
1498                 wf_tag_to_fourcc( GetWLE( &p_wf->wFormatTag ), &tk->fmt.i_codec, NULL );
1499
1500                 tk->fmt.audio.i_channels   = GetWLE( &p_wf->nChannels );
1501                 tk->fmt.audio.i_rate = GetDWLE( &p_wf->nSamplesPerSec );
1502                 tk->fmt.i_bitrate    = GetDWLE( &p_wf->nAvgBytesPerSec ) * 8;
1503                 tk->fmt.audio.i_blockalign = GetWLE( &p_wf->nBlockAlign );;
1504                 tk->fmt.audio.i_bitspersample = GetWLE( &p_wf->wBitsPerSample );
1505
1506                 tk->fmt.i_extra            = GetWLE( &p_wf->cbSize );
1507                 if( tk->fmt.i_extra > 0 )
1508                 {
1509                     tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1510                     memcpy( tk->fmt.p_extra, &p_wf[1], tk->fmt.i_extra );
1511                 }
1512             }
1513         }
1514         else if( !strcmp( tk->psz_codec, "A_MPEG/L3" ) ||
1515                  !strcmp( tk->psz_codec, "A_MPEG/L2" ) ||
1516                  !strcmp( tk->psz_codec, "A_MPEG/L1" ) )
1517         {
1518             tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
1519         }
1520         else if( !strcmp( tk->psz_codec, "A_AC3" ) )
1521         {
1522             tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
1523         }
1524         else if( !strcmp( tk->psz_codec, "A_DTS" ) )
1525         {
1526             tk->fmt.i_codec = VLC_FOURCC( 'd', 't', 's', ' ' );
1527         }
1528         else if( !strcmp( tk->psz_codec, "A_FLAC" ) )
1529         {
1530             tk->fmt.i_codec = VLC_FOURCC( 'f', 'l', 'a', 'c' );
1531             tk->fmt.i_extra = tk->i_extra_data;
1532             tk->fmt.p_extra = malloc( tk->i_extra_data );
1533             memcpy( tk->fmt.p_extra,tk->p_extra_data, tk->i_extra_data );
1534         }
1535         else if( !strcmp( tk->psz_codec, "A_VORBIS" ) )
1536         {
1537             int i, i_offset = 1, i_size[3], i_extra;
1538             uint8_t *p_extra;
1539
1540             tk->fmt.i_codec = VLC_FOURCC( 'v', 'o', 'r', 'b' );
1541
1542             /* Split the 3 headers */
1543             if( tk->p_extra_data[0] != 0x02 )
1544                 msg_Err( &sys.demuxer, "invalid vorbis header" );
1545
1546             for( i = 0; i < 2; i++ )
1547             {
1548                 i_size[i] = 0;
1549                 while( i_offset < tk->i_extra_data )
1550                 {
1551                     i_size[i] += tk->p_extra_data[i_offset];
1552                     if( tk->p_extra_data[i_offset++] != 0xff ) break;
1553                 }
1554             }
1555
1556             i_size[0] = __MIN(i_size[0], tk->i_extra_data - i_offset);
1557             i_size[1] = __MIN(i_size[1], tk->i_extra_data -i_offset -i_size[0]);
1558             i_size[2] = tk->i_extra_data - i_offset - i_size[0] - i_size[1];
1559
1560             tk->fmt.i_extra = 3 * 2 + i_size[0] + i_size[1] + i_size[2];
1561             tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1562             p_extra = (uint8_t *)tk->fmt.p_extra; i_extra = 0;
1563             for( i = 0; i < 3; i++ )
1564             {
1565                 *(p_extra++) = i_size[i] >> 8;
1566                 *(p_extra++) = i_size[i] & 0xFF;
1567                 memcpy( p_extra, tk->p_extra_data + i_offset + i_extra,
1568                         i_size[i] );
1569                 p_extra += i_size[i];
1570                 i_extra += i_size[i];
1571             }
1572         }
1573         else if( !strncmp( tk->psz_codec, "A_AAC/MPEG2/", strlen( "A_AAC/MPEG2/" ) ) ||
1574                  !strncmp( tk->psz_codec, "A_AAC/MPEG4/", strlen( "A_AAC/MPEG4/" ) ) )
1575         {
1576             int i_profile, i_srate;
1577             static unsigned int i_sample_rates[] =
1578             {
1579                     96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1580                         16000, 12000, 11025, 8000,  7350,  0,     0,     0
1581             };
1582
1583             tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
1584             /* create data for faad (MP4DecSpecificDescrTag)*/
1585
1586             if( !strcmp( &tk->psz_codec[12], "MAIN" ) )
1587             {
1588                 i_profile = 0;
1589             }
1590             else if( !strcmp( &tk->psz_codec[12], "LC" ) )
1591             {
1592                 i_profile = 1;
1593             }
1594             else if( !strcmp( &tk->psz_codec[12], "SSR" ) )
1595             {
1596                 i_profile = 2;
1597             }
1598             else
1599             {
1600                 i_profile = 3;
1601             }
1602
1603             for( i_srate = 0; i_srate < 13; i_srate++ )
1604             {
1605                 if( i_sample_rates[i_srate] == tk->fmt.audio.i_rate )
1606                 {
1607                     break;
1608                 }
1609             }
1610             msg_Dbg( &sys.demuxer, "profile=%d srate=%d", i_profile, i_srate );
1611
1612             tk->fmt.i_extra = 2;
1613             tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1614             ((uint8_t*)tk->fmt.p_extra)[0] = ((i_profile + 1) << 3) | ((i_srate&0xe) >> 1);
1615             ((uint8_t*)tk->fmt.p_extra)[1] = ((i_srate & 0x1) << 7) | (tk->fmt.audio.i_channels << 3);
1616         }
1617         else if( !strcmp( tk->psz_codec, "A_PCM/INT/BIG" ) ||
1618                  !strcmp( tk->psz_codec, "A_PCM/INT/LIT" ) ||
1619                  !strcmp( tk->psz_codec, "A_PCM/FLOAT/IEEE" ) )
1620         {
1621             if( !strcmp( tk->psz_codec, "A_PCM/INT/BIG" ) )
1622             {
1623                 tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1624             }
1625             else
1626             {
1627                 tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
1628             }
1629             tk->fmt.audio.i_blockalign = ( tk->fmt.audio.i_bitspersample + 7 ) / 8 * tk->fmt.audio.i_channels;
1630         }
1631         else if( !strcmp( tk->psz_codec, "A_TTA1" ) )
1632         {
1633             /* FIXME: support this codec */
1634             msg_Err( &sys.demuxer, "TTA not supported yet[%d, n=%d]", i_track, tk->i_number );
1635             tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1636         }
1637         else if( !strcmp( tk->psz_codec, "A_WAVPACK4" ) )
1638         {
1639             /* FIXME: support this codec */
1640             msg_Err( &sys.demuxer, "Wavpack not supported yet[%d, n=%d]", i_track, tk->i_number );
1641             tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1642         }
1643         else if( !strcmp( tk->psz_codec, "S_TEXT/UTF8" ) )
1644         {
1645             tk->fmt.i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
1646             tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1647         }
1648         else if( !strcmp( tk->psz_codec, "S_TEXT/SSA" ) ||
1649                  !strcmp( tk->psz_codec, "S_TEXT/ASS" ) ||
1650                  !strcmp( tk->psz_codec, "S_SSA" ) ||
1651                  !strcmp( tk->psz_codec, "S_ASS" ))
1652         {
1653             tk->fmt.i_codec = VLC_FOURCC( 's', 's', 'a', ' ' );
1654             tk->fmt.subs.psz_encoding = strdup( "UTF-8" );
1655         }
1656         else if( !strcmp( tk->psz_codec, "S_VOBSUB" ) )
1657         {
1658             tk->fmt.i_codec = VLC_FOURCC( 's','p','u',' ' );
1659             if( tk->i_extra_data )
1660             {
1661                 char *p_start;
1662                 char *p_buf = (char *)malloc( tk->i_extra_data + 1);
1663                 memcpy( p_buf, tk->p_extra_data , tk->i_extra_data );
1664                 p_buf[tk->i_extra_data] = '\0';
1665
1666                 p_start = strstr( p_buf, "size:" );
1667                 if( sscanf( p_start, "size: %dx%d",
1668                         &tk->fmt.subs.spu.i_original_frame_width, &tk->fmt.subs.spu.i_original_frame_height ) == 2 )
1669                 {
1670                     msg_Dbg( &sys.demuxer, "original frame size vobsubs: %dx%d", tk->fmt.subs.spu.i_original_frame_width, tk->fmt.subs.spu.i_original_frame_height );
1671                 }
1672                 else
1673                 {
1674                     msg_Warn( &sys.demuxer, "reading original frame size for vobsub failed" );
1675                 }
1676                 free( p_buf );
1677             }
1678         }
1679         else if( !strcmp( tk->psz_codec, "B_VOBBTN" ) )
1680         {
1681             /* FIXME: support this codec */
1682             msg_Err( &sys.demuxer, "Vob Buttons not supported yet[%d, n=%d]", i_track, tk->i_number );
1683             tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1684         }
1685         else
1686         {
1687             msg_Err( &sys.demuxer, "unknow codec id=`%s'", tk->psz_codec );
1688             tk->fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1689         }
1690         if( tk->b_default )
1691         {
1692             tk->fmt.i_priority = 1000;
1693         }
1694
1695         tk->p_es = es_out_Add( sys.demuxer.out, &tk->fmt );
1696
1697         es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, tk->p_es, i_start_time );
1698 #undef tk
1699     }
1700
1701     sys.i_start_pts = i_start_time;
1702     // reset the stream reading to the first cluster of the segment used
1703     es.I_O().setFilePointer( i_start_pos );
1704
1705     delete ep;
1706     ep = new EbmlParser( &es, segment, &sys.demuxer );
1707
1708     return true;
1709 }
1710
1711 void matroska_segment_c::UnSelect( )
1712 {
1713     size_t i_track;
1714
1715     for( i_track = 0; i_track < tracks.size(); i_track++ )
1716     {
1717 #define tk  tracks[i_track]
1718         if ( tk->p_es != NULL )
1719         {
1720             es_out_Del( sys.demuxer.out, tk->p_es );
1721             tk->p_es = NULL;
1722         }
1723 #undef tk
1724     }
1725     delete ep;
1726     ep = NULL;
1727 }
1728
1729 bool virtual_segment_c::Select( input_title_t & title )
1730 {
1731     if ( linked_segments.size() == 0 )
1732         return false;
1733
1734     // !!! should be called only once !!!
1735     matroska_segment_c *p_segment;
1736     size_t i, j;
1737
1738     // copy editions from the first segment
1739     p_segment = linked_segments[0];
1740     p_editions = &p_segment->stored_editions;
1741
1742     for ( i=1 ; i<linked_segments.size(); i++ )
1743     {
1744         p_segment = linked_segments[i];
1745         // FIXME assume we have the same editions in all segments
1746         for (j=0; j<p_segment->stored_editions.size(); j++)
1747             (*p_editions)[j]->Append( *p_segment->stored_editions[j] );
1748     }
1749
1750     if ( Edition() != NULL )
1751         Edition()->PublishChapters( title );
1752
1753     return true;
1754 }
1755
1756 void chapter_edition_c::PublishChapters( input_title_t & title )
1757 {
1758     title.i_seekpoint = 0;
1759     if ( title.seekpoint != NULL )
1760         free( title.seekpoint );
1761     chapter_item_c::PublishChapters( title, 0 );
1762 }
1763
1764 void chapter_item_c::PublishChapters( input_title_t & title, int i_level )
1765 {
1766     if (b_display_seekpoint)
1767     {
1768         seekpoint_t *sk = vlc_seekpoint_New();
1769
1770         sk->i_level = i_level;
1771         sk->i_time_offset = i_start_time;
1772         sk->psz_name = strdup( psz_name.c_str() );
1773
1774         // A start time of '0' is ok. A missing ChapterTime element is ok, too, because '0' is its default value.
1775         title.i_seekpoint++;
1776         title.seekpoint = (seekpoint_t**)realloc( title.seekpoint, title.i_seekpoint * sizeof( seekpoint_t* ) );
1777         title.seekpoint[title.i_seekpoint-1] = sk;
1778
1779         i_seekpoint_num = title.i_seekpoint;
1780     }
1781
1782     for ( size_t i=0; i<sub_chapters.size() ; i++)
1783     {
1784         sub_chapters[i]->PublishChapters( title, i_level+1 );
1785     }
1786 }
1787
1788 void virtual_segment_c::UpdateCurrentToChapter( demux_t & demux )
1789 {
1790     demux_sys_t & sys = *demux.p_sys;
1791     chapter_item_c *psz_curr_chapter;
1792
1793     /* update current chapter/seekpoint */
1794     if ( p_editions->size() )
1795     {
1796         /* 1st, we need to know in which chapter we are */
1797         psz_curr_chapter = (*p_editions)[i_current_edition]->FindTimecode( sys.i_pts );
1798
1799         /* we have moved to a new chapter */
1800         if (psz_curr_chapter != NULL && psz_current_chapter != psz_curr_chapter)
1801         {
1802             if ( psz_current_chapter != NULL )
1803                 psz_current_chapter->Leave();
1804
1805             if ( psz_curr_chapter->i_seekpoint_num > 0 )
1806             {
1807                 demux.info.i_update |= INPUT_UPDATE_SEEKPOINT;
1808                 demux.info.i_seekpoint = psz_curr_chapter->i_seekpoint_num - 1;
1809             }
1810
1811             if ( (*p_editions)[i_current_edition]->b_ordered )
1812             {
1813                 psz_curr_chapter->Enter();
1814
1815                 // only seek if necessary
1816                 if ( psz_current_chapter == NULL || (psz_current_chapter->i_end_time != psz_curr_chapter->i_start_time) )
1817                     Seek( demux, sys.i_pts, 0, psz_curr_chapter );
1818             }
1819         }
1820         psz_current_chapter = psz_curr_chapter;
1821     }
1822 }
1823
1824 void chapter_item_c::Append( const chapter_item_c & chapter )
1825 {
1826     // we are appending content for the same chapter UID
1827     size_t i;
1828     chapter_item_c *p_chapter;
1829
1830     for ( i=0; i<chapter.sub_chapters.size(); i++ )
1831     {
1832         p_chapter = FindChapter( *chapter.sub_chapters[i] );
1833         if ( p_chapter != NULL )
1834         {
1835             p_chapter->Append( *chapter.sub_chapters[i] );
1836         }
1837         else
1838         {
1839             sub_chapters.push_back( chapter.sub_chapters[i] );
1840         }
1841     }
1842
1843     i_user_start_time = min( i_user_start_time, chapter.i_user_start_time );
1844     i_user_end_time = max( i_user_end_time, chapter.i_user_end_time );
1845 }
1846
1847 chapter_item_c * chapter_item_c::FindChapter( const chapter_item_c & chapter )
1848 {
1849     size_t i;
1850     for ( i=0; i<sub_chapters.size(); i++)
1851     {
1852         if ( sub_chapters[i]->i_uid == chapter.i_uid )
1853             return sub_chapters[i];
1854     }
1855     return NULL;
1856 }
1857
1858 static void Seek( demux_t *p_demux, mtime_t i_date, double f_percent, chapter_item_c *psz_chapter )
1859 {
1860     demux_sys_t        *p_sys = p_demux->p_sys;
1861     virtual_segment_c  *p_vsegment = p_sys->p_current_segment;
1862     matroska_segment_c *p_segment = p_vsegment->Segment();
1863     mtime_t            i_time_offset = 0;
1864
1865     int         i_index;
1866
1867     msg_Dbg( p_demux, "seek request to "I64Fd" (%f%%)", i_date, f_percent );
1868     if( i_date < 0 && f_percent < 0 )
1869     {
1870         msg_Warn( p_demux, "cannot seek nowhere !" );
1871         return;
1872     }
1873     if( f_percent > 1.0 )
1874     {
1875         msg_Warn( p_demux, "cannot seek so far !" );
1876         return;
1877     }
1878
1879     /* seek without index or without date */
1880     if( f_percent >= 0 && (config_GetInt( p_demux, "mkv-seek-percent" ) || !p_segment->b_cues || i_date < 0 ))
1881     {
1882         if (p_sys->f_duration >= 0)
1883         {
1884             i_date = int64_t( f_percent * p_sys->f_duration * 1000.0 );
1885         }
1886         else
1887         {
1888             int64_t i_pos = int64_t( f_percent * stream_Size( p_demux->s ) );
1889
1890             msg_Dbg( p_demux, "inacurate way of seeking" );
1891             for( i_index = 0; i_index < p_segment->i_index; i_index++ )
1892             {
1893                 if( p_segment->index[i_index].i_position >= i_pos)
1894                 {
1895                     break;
1896                 }
1897             }
1898             if( i_index == p_segment->i_index )
1899             {
1900                 i_index--;
1901             }
1902
1903             i_date = p_segment->index[i_index].i_time;
1904
1905 #if 0
1906             if( p_segment->index[i_index].i_position < i_pos )
1907             {
1908                 EbmlElement *el;
1909
1910                 msg_Warn( p_demux, "searching for cluster, could take some time" );
1911
1912                 /* search a cluster */
1913                 while( ( el = p_sys->ep->Get() ) != NULL )
1914                 {
1915                     if( MKV_IS_ID( el, KaxCluster ) )
1916                     {
1917                         KaxCluster *cluster = (KaxCluster*)el;
1918
1919                         /* add it to the index */
1920                         p_segment->IndexAppendCluster( cluster );
1921
1922                         if( (int64_t)cluster->GetElementPosition() >= i_pos )
1923                         {
1924                             p_sys->cluster = cluster;
1925                             p_sys->ep->Down();
1926                             break;
1927                         }
1928                     }
1929                 }
1930             }
1931 #endif
1932         }
1933     }
1934
1935     p_vsegment->Seek( *p_demux, i_date, i_time_offset, psz_chapter );
1936 }
1937
1938 /*****************************************************************************
1939  * Demux: reads and demuxes data packets
1940  *****************************************************************************
1941  * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
1942  *****************************************************************************/
1943 static int Demux( demux_t *p_demux)
1944 {
1945     demux_sys_t        *p_sys = p_demux->p_sys;
1946     virtual_segment_c  *p_vsegment = p_sys->p_current_segment;
1947     matroska_segment_c *p_segmet = p_vsegment->Segment();
1948     if ( p_segmet == NULL ) return 0;
1949     int                i_block_count = 0;
1950
1951     KaxBlock *block;
1952     int64_t i_block_duration;
1953     int64_t i_block_ref1;
1954     int64_t i_block_ref2;
1955
1956     for( ;; )
1957     {
1958         if ( p_sys->demuxer.b_die )
1959             return 0;
1960
1961         if( p_sys->i_pts >= p_sys->i_start_pts  )
1962             p_vsegment->UpdateCurrentToChapter( *p_demux );
1963
1964         if ( p_vsegment->EditionIsOrdered() && p_vsegment->CurrentChapter() == NULL )
1965         {
1966             /* nothing left to read in this ordered edition */
1967             if ( !p_vsegment->SelectNext() )
1968                 return 0;
1969             p_segmet->UnSelect( );
1970
1971             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1972
1973             /* switch to the next segment */
1974             p_segmet = p_vsegment->Segment();
1975             if ( !p_segmet->Select( 0 ) )
1976             {
1977                 msg_Err( p_demux, "Failed to select new segment" );
1978                 return 0;
1979             }
1980             continue;
1981         }
1982
1983
1984         if( p_segmet->BlockGet( &block, &i_block_ref1, &i_block_ref2, &i_block_duration ) )
1985         {
1986             if ( p_vsegment->EditionIsOrdered() )
1987             {
1988                 const chapter_item_c *p_chap = p_vsegment->CurrentChapter();
1989                 // check if there are more chapters to read
1990                 if ( p_chap != NULL )
1991                 {
1992                     /* TODO handle successive chapters with the same user_start_time/user_end_time
1993                     if ( p_chap->i_user_start_time == p_chap->i_user_start_time )
1994                         p_vsegment->SelectNext();
1995                     */
1996                     p_sys->i_pts = p_chap->i_user_end_time;
1997                     p_sys->i_pts++; // trick to avoid staying on segments with no duration and no content
1998
1999                     return 1;
2000                 }
2001
2002                 return 0;
2003             }
2004             msg_Warn( p_demux, "cannot get block EOF?" );
2005             p_segmet->UnSelect( );
2006
2007             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
2008
2009             /* switch to the next segment */
2010             if ( !p_vsegment->SelectNext() )
2011                 // no more segments in this stream
2012                 return 0;
2013             p_segmet = p_vsegment->Segment();
2014             if ( !p_segmet->Select( 0 ) )
2015             {
2016                 msg_Err( p_demux, "Failed to select new segment" );
2017                 return 0;
2018             }
2019
2020             continue;
2021         }
2022
2023         p_sys->i_pts = p_sys->i_chapter_time + block->GlobalTimecode() / (mtime_t) 1000;
2024
2025         if( p_sys->i_pts >= p_sys->i_start_pts  )
2026         {
2027             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pts );
2028         }
2029
2030         BlockDecode( p_demux, block, p_sys->i_pts, i_block_duration );
2031
2032         delete block;
2033         i_block_count++;
2034
2035         // TODO optimize when there is need to leave or when seeking has been called
2036         if( i_block_count > 5 )
2037         {
2038             return 1;
2039         }
2040     }
2041 }
2042
2043
2044
2045 /*****************************************************************************
2046  * Stream managment
2047  *****************************************************************************/
2048 vlc_stream_io_callback::vlc_stream_io_callback( stream_t *s_ )
2049 {
2050     s = s_;
2051     mb_eof = VLC_FALSE;
2052 }
2053
2054 uint32 vlc_stream_io_callback::read( void *p_buffer, size_t i_size )
2055 {
2056     if( i_size <= 0 || mb_eof )
2057     {
2058         return 0;
2059     }
2060
2061     return stream_Read( s, p_buffer, i_size );
2062 }
2063 void vlc_stream_io_callback::setFilePointer(int64_t i_offset, seek_mode mode )
2064 {
2065     int64_t i_pos;
2066
2067     switch( mode )
2068     {
2069         case seek_beginning:
2070             i_pos = i_offset;
2071             break;
2072         case seek_end:
2073             i_pos = stream_Size( s ) - i_offset;
2074             break;
2075         default:
2076             i_pos= stream_Tell( s ) + i_offset;
2077             break;
2078     }
2079
2080     if( i_pos < 0 || i_pos >= stream_Size( s ) )
2081     {
2082         mb_eof = VLC_TRUE;
2083         return;
2084     }
2085
2086     mb_eof = VLC_FALSE;
2087     if( stream_Seek( s, i_pos ) )
2088     {
2089         mb_eof = VLC_TRUE;
2090     }
2091     return;
2092 }
2093 size_t vlc_stream_io_callback::write( const void *p_buffer, size_t i_size )
2094 {
2095     return 0;
2096 }
2097 uint64 vlc_stream_io_callback::getFilePointer( void )
2098 {
2099     return stream_Tell( s );
2100 }
2101 void vlc_stream_io_callback::close( void )
2102 {
2103     return;
2104 }
2105
2106
2107 /*****************************************************************************
2108  * Ebml Stream parser
2109  *****************************************************************************/
2110 EbmlParser::EbmlParser( EbmlStream *es, EbmlElement *el_start, demux_t *p_demux )
2111 {
2112     int i;
2113
2114     m_es = es;
2115     m_got = NULL;
2116     m_el[0] = el_start;
2117     mi_remain_size[0] = el_start->GetSize();
2118
2119     for( i = 1; i < 6; i++ )
2120     {
2121         m_el[i] = NULL;
2122     }
2123     mi_level = 1;
2124     mi_user_level = 1;
2125     mb_keep = VLC_FALSE;
2126     mb_dummy = config_GetInt( p_demux, "mkv-use-dummy" );
2127 }
2128
2129 EbmlParser::~EbmlParser( void )
2130 {
2131     int i;
2132
2133     for( i = 1; i < mi_level; i++ )
2134     {
2135         if( !mb_keep )
2136         {
2137             delete m_el[i];
2138         }
2139         mb_keep = VLC_FALSE;
2140     }
2141 }
2142
2143 void EbmlParser::Up( void )
2144 {
2145     if( mi_user_level == mi_level )
2146     {
2147         fprintf( stderr," arrrrrrrrrrrrrg Up cannot escape itself\n" );
2148     }
2149
2150     mi_user_level--;
2151 }
2152
2153 void EbmlParser::Down( void )
2154 {
2155     mi_user_level++;
2156     mi_level++;
2157 }
2158
2159 void EbmlParser::Keep( void )
2160 {
2161     mb_keep = VLC_TRUE;
2162 }
2163
2164 int EbmlParser::GetLevel( void )
2165 {
2166     return mi_user_level;
2167 }
2168
2169 void EbmlParser::Reset( demux_t *p_demux )
2170 {
2171     while ( mi_level > 0)
2172     {
2173         delete m_el[mi_level];
2174         m_el[mi_level] = NULL;
2175         mi_level--;
2176     }
2177     mi_user_level = mi_level = 1;
2178 #if LIBEBML_VERSION >= 0x000704
2179     // a little faster and cleaner
2180     m_es->I_O().setFilePointer( static_cast<KaxSegment*>(m_el[0])->GetGlobalPosition(0) );
2181 #else
2182     m_es->I_O().setFilePointer( m_el[0]->GetElementPosition() + m_el[0]->ElementSize(true) - m_el[0]->GetSize() );
2183 #endif
2184     mb_dummy = config_GetInt( p_demux, "mkv-use-dummy" );
2185 }
2186
2187 EbmlElement *EbmlParser::Get( void )
2188 {
2189     int i_ulev = 0;
2190
2191     if( mi_user_level != mi_level )
2192     {
2193         return NULL;
2194     }
2195     if( m_got )
2196     {
2197         EbmlElement *ret = m_got;
2198         m_got = NULL;
2199
2200         return ret;
2201     }
2202
2203     if( m_el[mi_level] )
2204     {
2205         m_el[mi_level]->SkipData( *m_es, m_el[mi_level]->Generic().Context );
2206         if( !mb_keep )
2207         {
2208             delete m_el[mi_level];
2209         }
2210         mb_keep = VLC_FALSE;
2211     }
2212
2213     m_el[mi_level] = m_es->FindNextElement( m_el[mi_level - 1]->Generic().Context, i_ulev, 0xFFFFFFFFL, mb_dummy, 1 );
2214 //    mi_remain_size[mi_level] = m_el[mi_level]->GetSize();
2215     if( i_ulev > 0 )
2216     {
2217         while( i_ulev > 0 )
2218         {
2219             if( mi_level == 1 )
2220             {
2221                 mi_level = 0;
2222                 return NULL;
2223             }
2224
2225             delete m_el[mi_level - 1];
2226             m_got = m_el[mi_level -1] = m_el[mi_level];
2227             m_el[mi_level] = NULL;
2228
2229             mi_level--;
2230             i_ulev--;
2231         }
2232         return NULL;
2233     }
2234     else if( m_el[mi_level] == NULL )
2235     {
2236         fprintf( stderr," m_el[mi_level] == NULL\n" );
2237     }
2238
2239     return m_el[mi_level];
2240 }
2241
2242
2243 /*****************************************************************************
2244  * Tools
2245  *  * LoadCues : load the cues element and update index
2246  *
2247  *  * LoadTags : load ... the tags element
2248  *
2249  *  * InformationCreate : create all information, load tags if present
2250  *
2251  *****************************************************************************/
2252 void matroska_segment_c::LoadCues( )
2253 {
2254     int64_t     i_sav_position = es.I_O().getFilePointer();
2255     EbmlParser  *ep;
2256     EbmlElement *el, *cues;
2257
2258     /* *** Load the cue if found *** */
2259     if( i_cues_position < 0 )
2260     {
2261         msg_Warn( &sys.demuxer, "no cues/empty cues found->seek won't be precise" );
2262
2263 //        IndexAppendCluster( cluster );
2264     }
2265
2266     vlc_bool_t b_seekable;
2267
2268     stream_Control( sys.demuxer.s, STREAM_CAN_FASTSEEK, &b_seekable );
2269     if( !b_seekable )
2270         return;
2271
2272     msg_Dbg( &sys.demuxer, "loading cues" );
2273     es.I_O().setFilePointer( i_cues_position, seek_beginning );
2274     cues = es.FindNextID( KaxCues::ClassInfos, 0xFFFFFFFFL);
2275
2276     if( cues == NULL )
2277     {
2278         msg_Err( &sys.demuxer, "cannot load cues (broken seekhead or file)" );
2279         es.I_O().setFilePointer( i_sav_position, seek_beginning );
2280         return;
2281     }
2282
2283     ep = new EbmlParser( &es, cues, &sys.demuxer );
2284     while( ( el = ep->Get() ) != NULL )
2285     {
2286         if( MKV_IS_ID( el, KaxCuePoint ) )
2287         {
2288 #define idx index[i_index]
2289
2290             idx.i_track       = -1;
2291             idx.i_block_number= -1;
2292             idx.i_position    = -1;
2293             idx.i_time        = 0;
2294             idx.b_key         = VLC_TRUE;
2295
2296             ep->Down();
2297             while( ( el = ep->Get() ) != NULL )
2298             {
2299                 if( MKV_IS_ID( el, KaxCueTime ) )
2300                 {
2301                     KaxCueTime &ctime = *(KaxCueTime*)el;
2302
2303                     ctime.ReadData( es.I_O() );
2304
2305                     idx.i_time = uint64( ctime ) * i_timescale / (mtime_t)1000;
2306                 }
2307                 else if( MKV_IS_ID( el, KaxCueTrackPositions ) )
2308                 {
2309                     ep->Down();
2310                     while( ( el = ep->Get() ) != NULL )
2311                     {
2312                         if( MKV_IS_ID( el, KaxCueTrack ) )
2313                         {
2314                             KaxCueTrack &ctrack = *(KaxCueTrack*)el;
2315
2316                             ctrack.ReadData( es.I_O() );
2317                             idx.i_track = uint16( ctrack );
2318                         }
2319                         else if( MKV_IS_ID( el, KaxCueClusterPosition ) )
2320                         {
2321                             KaxCueClusterPosition &ccpos = *(KaxCueClusterPosition*)el;
2322
2323                             ccpos.ReadData( es.I_O() );
2324                             idx.i_position = segment->GetGlobalPosition( uint64( ccpos ) );
2325                         }
2326                         else if( MKV_IS_ID( el, KaxCueBlockNumber ) )
2327                         {
2328                             KaxCueBlockNumber &cbnum = *(KaxCueBlockNumber*)el;
2329
2330                             cbnum.ReadData( es.I_O() );
2331                             idx.i_block_number = uint32( cbnum );
2332                         }
2333                         else
2334                         {
2335                             msg_Dbg( &sys.demuxer, "         * Unknown (%s)", typeid(*el).name() );
2336                         }
2337                     }
2338                     ep->Up();
2339                 }
2340                 else
2341                 {
2342                     msg_Dbg( &sys.demuxer, "     * Unknown (%s)", typeid(*el).name() );
2343                 }
2344             }
2345             ep->Up();
2346
2347 #if 0
2348             msg_Dbg( &sys.demuxer, " * added time="I64Fd" pos="I64Fd
2349                      " track=%d bnum=%d", idx.i_time, idx.i_position,
2350                      idx.i_track, idx.i_block_number );
2351 #endif
2352
2353             i_index++;
2354             if( i_index >= i_index_max )
2355             {
2356                 i_index_max += 1024;
2357                 index = (mkv_index_t*)realloc( index, sizeof( mkv_index_t ) * i_index_max );
2358             }
2359 #undef idx
2360         }
2361         else
2362         {
2363             msg_Dbg( &sys.demuxer, " * Unknown (%s)", typeid(*el).name() );
2364         }
2365     }
2366     delete ep;
2367     delete cues;
2368
2369     b_cues = VLC_TRUE;
2370
2371     msg_Dbg( &sys.demuxer, "loading cues done." );
2372     es.I_O().setFilePointer( i_sav_position, seek_beginning );
2373 }
2374
2375 void matroska_segment_c::LoadTags( )
2376 {
2377     int64_t     i_sav_position = es.I_O().getFilePointer();
2378     EbmlParser  *ep;
2379     EbmlElement *el, *tags;
2380
2381     msg_Dbg( &sys.demuxer, "loading tags" );
2382     es.I_O().setFilePointer( i_tags_position, seek_beginning );
2383     tags = es.FindNextID( KaxTags::ClassInfos, 0xFFFFFFFFL);
2384
2385     if( tags == NULL )
2386     {
2387         msg_Err( &sys.demuxer, "cannot load tags (broken seekhead or file)" );
2388         es.I_O().setFilePointer( i_sav_position, seek_beginning );
2389         return;
2390     }
2391
2392     msg_Dbg( &sys.demuxer, "Tags" );
2393     ep = new EbmlParser( &es, tags, &sys.demuxer );
2394     while( ( el = ep->Get() ) != NULL )
2395     {
2396         if( MKV_IS_ID( el, KaxTag ) )
2397         {
2398             msg_Dbg( &sys.demuxer, "+ Tag" );
2399             ep->Down();
2400             while( ( el = ep->Get() ) != NULL )
2401             {
2402                 if( MKV_IS_ID( el, KaxTagTargets ) )
2403                 {
2404                     msg_Dbg( &sys.demuxer, "|   + Targets" );
2405                     ep->Down();
2406                     while( ( el = ep->Get() ) != NULL )
2407                     {
2408                         msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid( *el ).name() );
2409                     }
2410                     ep->Up();
2411                 }
2412                 else if( MKV_IS_ID( el, KaxTagGeneral ) )
2413                 {
2414                     msg_Dbg( &sys.demuxer, "|   + General" );
2415                     ep->Down();
2416                     while( ( el = ep->Get() ) != NULL )
2417                     {
2418                         msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid( *el ).name() );
2419                     }
2420                     ep->Up();
2421                 }
2422                 else if( MKV_IS_ID( el, KaxTagGenres ) )
2423                 {
2424                     msg_Dbg( &sys.demuxer, "|   + Genres" );
2425                     ep->Down();
2426                     while( ( el = ep->Get() ) != NULL )
2427                     {
2428                         msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid( *el ).name() );
2429                     }
2430                     ep->Up();
2431                 }
2432                 else if( MKV_IS_ID( el, KaxTagAudioSpecific ) )
2433                 {
2434                     msg_Dbg( &sys.demuxer, "|   + Audio Specific" );
2435                     ep->Down();
2436                     while( ( el = ep->Get() ) != NULL )
2437                     {
2438                         msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid( *el ).name() );
2439                     }
2440                     ep->Up();
2441                 }
2442                 else if( MKV_IS_ID( el, KaxTagImageSpecific ) )
2443                 {
2444                     msg_Dbg( &sys.demuxer, "|   + Images Specific" );
2445                     ep->Down();
2446                     while( ( el = ep->Get() ) != NULL )
2447                     {
2448                         msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid( *el ).name() );
2449                     }
2450                     ep->Up();
2451                 }
2452                 else if( MKV_IS_ID( el, KaxTagMultiComment ) )
2453                 {
2454                     msg_Dbg( &sys.demuxer, "|   + Multi Comment" );
2455                 }
2456                 else if( MKV_IS_ID( el, KaxTagMultiCommercial ) )
2457                 {
2458                     msg_Dbg( &sys.demuxer, "|   + Multi Commercial" );
2459                 }
2460                 else if( MKV_IS_ID( el, KaxTagMultiDate ) )
2461                 {
2462                     msg_Dbg( &sys.demuxer, "|   + Multi Date" );
2463                 }
2464                 else if( MKV_IS_ID( el, KaxTagMultiEntity ) )
2465                 {
2466                     msg_Dbg( &sys.demuxer, "|   + Multi Entity" );
2467                 }
2468                 else if( MKV_IS_ID( el, KaxTagMultiIdentifier ) )
2469                 {
2470                     msg_Dbg( &sys.demuxer, "|   + Multi Identifier" );
2471                 }
2472                 else if( MKV_IS_ID( el, KaxTagMultiLegal ) )
2473                 {
2474                     msg_Dbg( &sys.demuxer, "|   + Multi Legal" );
2475                 }
2476                 else if( MKV_IS_ID( el, KaxTagMultiTitle ) )
2477                 {
2478                     msg_Dbg( &sys.demuxer, "|   + Multi Title" );
2479                 }
2480                 else
2481                 {
2482                     msg_Dbg( &sys.demuxer, "|   + Unknown (%s)", typeid( *el ).name() );
2483                 }
2484             }
2485             ep->Up();
2486         }
2487         else
2488         {
2489             msg_Dbg( &sys.demuxer, "+ Unknown (%s)", typeid( *el ).name() );
2490         }
2491     }
2492     delete ep;
2493     delete tags;
2494
2495     msg_Dbg( &sys.demuxer, "loading tags done." );
2496     es.I_O().setFilePointer( i_sav_position, seek_beginning );
2497 }
2498
2499 /*****************************************************************************
2500  * ParseSeekHead:
2501  *****************************************************************************/
2502 void matroska_segment_c::ParseSeekHead( KaxSeekHead *seekhead )
2503 {
2504     EbmlElement *el;
2505     size_t i, j;
2506     int i_upper_level = 0;
2507
2508     msg_Dbg( &sys.demuxer, "|   + Seek head" );
2509
2510     /* Master elements */
2511     seekhead->Read( es, seekhead->Generic().Context, i_upper_level, el, true );
2512
2513     for( i = 0; i < seekhead->ListSize(); i++ )
2514     {
2515         EbmlElement *l = (*seekhead)[i];
2516
2517         if( MKV_IS_ID( l, KaxSeek ) )
2518         {
2519             EbmlMaster *sk = static_cast<EbmlMaster *>(l);
2520             EbmlId id = EbmlVoid::ClassInfos.GlobalId;
2521             int64_t i_pos = -1;
2522
2523             for( j = 0; j < sk->ListSize(); j++ )
2524             {
2525                 EbmlElement *l = (*sk)[j];
2526
2527                 if( MKV_IS_ID( l, KaxSeekID ) )
2528                 {
2529                     KaxSeekID &sid = *(KaxSeekID*)l;
2530                     id = EbmlId( sid.GetBuffer(), sid.GetSize() );
2531                 }
2532                 else if( MKV_IS_ID( l, KaxSeekPosition ) )
2533                 {
2534                     KaxSeekPosition &spos = *(KaxSeekPosition*)l;
2535                     i_pos = uint64( spos );
2536                 }
2537                 else
2538                 {
2539                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
2540                 }
2541             }
2542
2543             if( i_pos >= 0 )
2544             {
2545                 if( id == KaxCues::ClassInfos.GlobalId )
2546                 {
2547                     msg_Dbg( &sys.demuxer, "|   |   |   = cues at "I64Fd, i_pos );
2548                     i_cues_position = segment->GetGlobalPosition( i_pos );
2549                 }
2550                 else if( id == KaxChapters::ClassInfos.GlobalId )
2551                 {
2552                     msg_Dbg( &sys.demuxer, "|   |   |   = chapters at "I64Fd, i_pos );
2553                     i_chapters_position = segment->GetGlobalPosition( i_pos );
2554                 }
2555                 else if( id == KaxTags::ClassInfos.GlobalId )
2556                 {
2557                     msg_Dbg( &sys.demuxer, "|   |   |   = tags at "I64Fd, i_pos );
2558                     i_tags_position = segment->GetGlobalPosition( i_pos );
2559                 }
2560             }
2561         }
2562         else
2563         {
2564             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
2565         }
2566     }
2567 }
2568
2569 /*****************************************************************************
2570  * ParseTrackEntry:
2571  *****************************************************************************/
2572 void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
2573 {
2574     size_t i, j, k, n;
2575
2576     mkv_track_t *tk;
2577
2578     msg_Dbg( &sys.demuxer, "|   |   + Track Entry" );
2579
2580     tk = new mkv_track_t();
2581     tracks.push_back( tk );
2582
2583     /* Init the track */
2584     memset( tk, 0, sizeof( mkv_track_t ) );
2585
2586     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
2587     tk->fmt.psz_language = strdup("English");
2588     tk->fmt.psz_description = NULL;
2589
2590     tk->b_default = VLC_TRUE;
2591     tk->b_enabled = VLC_TRUE;
2592     tk->b_silent = VLC_FALSE;
2593     tk->i_number = tracks.size() - 1;
2594     tk->i_extra_data = 0;
2595     tk->p_extra_data = NULL;
2596     tk->psz_codec = NULL;
2597     tk->i_default_duration = 0;
2598     tk->f_timecodescale = 1.0;
2599
2600     tk->b_inited = VLC_FALSE;
2601     tk->i_data_init = 0;
2602     tk->p_data_init = NULL;
2603
2604     tk->psz_codec_name = NULL;
2605     tk->psz_codec_settings = NULL;
2606     tk->psz_codec_info_url = NULL;
2607     tk->psz_codec_download_url = NULL;
2608
2609     tk->i_compression_type = MATROSKA_COMPRESSION_NONE;
2610
2611     for( i = 0; i < m->ListSize(); i++ )
2612     {
2613         EbmlElement *l = (*m)[i];
2614
2615         if( MKV_IS_ID( l, KaxTrackNumber ) )
2616         {
2617             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
2618
2619             tk->i_number = uint32( tnum );
2620             msg_Dbg( &sys.demuxer, "|   |   |   + Track Number=%u", uint32( tnum ) );
2621         }
2622         else  if( MKV_IS_ID( l, KaxTrackUID ) )
2623         {
2624             KaxTrackUID &tuid = *(KaxTrackUID*)l;
2625
2626             msg_Dbg( &sys.demuxer, "|   |   |   + Track UID=%u",  uint32( tuid ) );
2627         }
2628         else  if( MKV_IS_ID( l, KaxTrackType ) )
2629         {
2630             char *psz_type;
2631             KaxTrackType &ttype = *(KaxTrackType*)l;
2632
2633             switch( uint8(ttype) )
2634             {
2635                 case track_audio:
2636                     psz_type = "audio";
2637                     tk->fmt.i_cat = AUDIO_ES;
2638                     break;
2639                 case track_video:
2640                     psz_type = "video";
2641                     tk->fmt.i_cat = VIDEO_ES;
2642                     break;
2643                 case track_subtitle:
2644                     psz_type = "subtitle";
2645                     tk->fmt.i_cat = SPU_ES;
2646                     break;
2647                 default:
2648                     psz_type = "unknown";
2649                     tk->fmt.i_cat = UNKNOWN_ES;
2650                     break;
2651             }
2652
2653             msg_Dbg( &sys.demuxer, "|   |   |   + Track Type=%s", psz_type );
2654         }
2655 //        else  if( EbmlId( *l ) == KaxTrackFlagEnabled::ClassInfos.GlobalId )
2656 //        {
2657 //            KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
2658
2659 //            tk->b_enabled = uint32( fenb );
2660 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Enabled=%u",
2661 //                     uint32( fenb )  );
2662 //        }
2663         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
2664         {
2665             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
2666
2667             tk->b_default = uint32( fdef );
2668             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default=%u", uint32( fdef )  );
2669         }
2670         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) )
2671         {
2672             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
2673
2674             msg_Dbg( &sys.demuxer, "|   |   |   + Track Lacing=%d", uint32( lac ) );
2675         }
2676         else  if( MKV_IS_ID( l, KaxTrackMinCache ) )
2677         {
2678             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
2679
2680             msg_Dbg( &sys.demuxer, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
2681         }
2682         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) )
2683         {
2684             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
2685
2686             msg_Dbg( &sys.demuxer, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
2687         }
2688         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
2689         {
2690             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
2691
2692             tk->i_default_duration = uint64(defd);
2693             msg_Dbg( &sys.demuxer, "|   |   |   + Track Default Duration="I64Fd, uint64(defd) );
2694         }
2695         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
2696         {
2697             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
2698
2699             tk->f_timecodescale = float( ttcs );
2700             msg_Dbg( &sys.demuxer, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
2701         }
2702         else if( MKV_IS_ID( l, KaxTrackName ) )
2703         {
2704             KaxTrackName &tname = *(KaxTrackName*)l;
2705
2706             tk->fmt.psz_description = UTF8ToStr( UTFstring( tname ) );
2707             msg_Dbg( &sys.demuxer, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
2708         }
2709         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
2710         {
2711             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
2712
2713             tk->fmt.psz_language = strdup( string( lang ).c_str() );
2714             msg_Dbg( &sys.demuxer,
2715                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
2716         }
2717         else  if( MKV_IS_ID( l, KaxCodecID ) )
2718         {
2719             KaxCodecID &codecid = *(KaxCodecID*)l;
2720
2721             tk->psz_codec = strdup( string( codecid ).c_str() );
2722             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
2723         }
2724         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
2725         {
2726             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
2727
2728             tk->i_extra_data = cpriv.GetSize();
2729             if( tk->i_extra_data > 0 )
2730             {
2731                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
2732                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
2733             }
2734             msg_Dbg( &sys.demuxer, "|   |   |   + Track CodecPrivate size="I64Fd, cpriv.GetSize() );
2735         }
2736         else if( MKV_IS_ID( l, KaxCodecName ) )
2737         {
2738             KaxCodecName &cname = *(KaxCodecName*)l;
2739
2740             tk->psz_codec_name = UTF8ToStr( UTFstring( cname ) );
2741             msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
2742         }
2743         else if( MKV_IS_ID( l, KaxContentEncodings ) )
2744         {
2745             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
2746             MkvTree( sys.demuxer, 3, "Content Encodings" );
2747             for( j = 0; j < cencs->ListSize(); j++ )
2748             {
2749                 EbmlElement *l2 = (*cencs)[j];
2750                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
2751                 {
2752                     MkvTree( sys.demuxer, 4, "Content Encoding" );
2753                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
2754                     for( k = 0; k < cenc->ListSize(); k++ )
2755                     {
2756                         EbmlElement *l3 = (*cenc)[k];
2757                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
2758                         {
2759                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
2760                             MkvTree( sys.demuxer, 5, "Order: %i", uint32( encord ) );
2761                         }
2762                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
2763                         {
2764                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
2765                             MkvTree( sys.demuxer, 5, "Scope: %i", uint32( encscope ) );
2766                         }
2767                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
2768                         {
2769                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
2770                             MkvTree( sys.demuxer, 5, "Type: %i", uint32( enctype ) );
2771                         }
2772                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
2773                         {
2774                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
2775                             MkvTree( sys.demuxer, 5, "Content Compression" );
2776                             for( n = 0; n < compr->ListSize(); n++ )
2777                             {
2778                                 EbmlElement *l4 = (*compr)[n];
2779                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
2780                                 {
2781                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
2782                                     MkvTree( sys.demuxer, 6, "Compression Algorithm: %i", uint32(compalg) );
2783                                     if( uint32( compalg ) == 0 )
2784                                     {
2785                                         tk->i_compression_type = MATROSKA_COMPRESSION_ZLIB;
2786                                     }
2787                                 }
2788                                 else
2789                                 {
2790                                     MkvTree( sys.demuxer, 6, "Unknown (%s)", typeid(*l4).name() );
2791                                 }
2792                             }
2793                         }
2794
2795                         else
2796                         {
2797                             MkvTree( sys.demuxer, 5, "Unknown (%s)", typeid(*l3).name() );
2798                         }
2799                     }
2800
2801                 }
2802                 else
2803                 {
2804                     MkvTree( sys.demuxer, 4, "Unknown (%s)", typeid(*l2).name() );
2805                 }
2806             }
2807
2808         }
2809 //        else if( EbmlId( *l ) == KaxCodecSettings::ClassInfos.GlobalId )
2810 //        {
2811 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
2812
2813 //            tk->psz_codec_settings = UTF8ToStr( UTFstring( cset ) );
2814 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
2815 //        }
2816 //        else if( EbmlId( *l ) == KaxCodecInfoURL::ClassInfos.GlobalId )
2817 //        {
2818 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
2819
2820 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
2821 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
2822 //        }
2823 //        else if( EbmlId( *l ) == KaxCodecDownloadURL::ClassInfos.GlobalId )
2824 //        {
2825 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
2826
2827 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
2828 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
2829 //        }
2830 //        else if( EbmlId( *l ) == KaxCodecDecodeAll::ClassInfos.GlobalId )
2831 //        {
2832 //            KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
2833
2834 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Codec Decode All=%u <== UNUSED", uint8( cdall ) );
2835 //        }
2836 //        else if( EbmlId( *l ) == KaxTrackOverlay::ClassInfos.GlobalId )
2837 //        {
2838 //            KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
2839
2840 //            msg_Dbg( &sys.demuxer, "|   |   |   + Track Overlay=%u <== UNUSED", uint32( tovr ) );
2841 //        }
2842         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
2843         {
2844             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
2845             unsigned int j;
2846
2847             msg_Dbg( &sys.demuxer, "|   |   |   + Track Video" );
2848             tk->f_fps = 0.0;
2849
2850             for( j = 0; j < tkv->ListSize(); j++ )
2851             {
2852                 EbmlElement *l = (*tkv)[j];
2853 //                if( EbmlId( *el4 ) == KaxVideoFlagInterlaced::ClassInfos.GlobalId )
2854 //                {
2855 //                    KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)el4;
2856
2857 //                    msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
2858 //                }
2859 //                else if( EbmlId( *el4 ) == KaxVideoStereoMode::ClassInfos.GlobalId )
2860 //                {
2861 //                    KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)el4;
2862
2863 //                    msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
2864 //                }
2865 //                else
2866                 if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
2867                 {
2868                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
2869
2870                     tk->fmt.video.i_width = uint16( vwidth );
2871                     msg_Dbg( &sys.demuxer, "|   |   |   |   + width=%d", uint16( vwidth ) );
2872                 }
2873                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
2874                 {
2875                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
2876
2877                     tk->fmt.video.i_height = uint16( vheight );
2878                     msg_Dbg( &sys.demuxer, "|   |   |   |   + height=%d", uint16( vheight ) );
2879                 }
2880                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
2881                 {
2882                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
2883
2884                     tk->fmt.video.i_visible_width = uint16( vwidth );
2885                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display width=%d", uint16( vwidth ) );
2886                 }
2887                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
2888                 {
2889                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
2890
2891                     tk->fmt.video.i_visible_height = uint16( vheight );
2892                     msg_Dbg( &sys.demuxer, "|   |   |   |   + display height=%d", uint16( vheight ) );
2893                 }
2894                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
2895                 {
2896                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
2897
2898                     tk->f_fps = float( vfps );
2899                     msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( vfps ) );
2900                 }
2901 //                else if( EbmlId( *l ) == KaxVideoDisplayUnit::ClassInfos.GlobalId )
2902 //                {
2903 //                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
2904
2905 //                    msg_Dbg( &sys.demuxer, "|   |   |   |   + Track Video Display Unit=%s",
2906 //                             uint8( vdmode ) == 0 ? "pixels" : ( uint8( vdmode ) == 1 ? "centimeters": "inches" ) );
2907 //                }
2908 //                else if( EbmlId( *l ) == KaxVideoAspectRatio::ClassInfos.GlobalId )
2909 //                {
2910 //                    KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
2911
2912 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
2913 //                }
2914 //                else if( EbmlId( *l ) == KaxVideoGamma::ClassInfos.GlobalId )
2915 //                {
2916 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
2917
2918 //                    msg_Dbg( &sys.demuxer, "   |   |   |   + fps=%f", float( gamma ) );
2919 //                }
2920                 else
2921                 {
2922                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
2923                 }
2924             }
2925             if ( tk->fmt.video.i_visible_height && tk->fmt.video.i_visible_width )
2926                 tk->fmt.video.i_aspect = VOUT_ASPECT_FACTOR * tk->fmt.video.i_visible_width / tk->fmt.video.i_visible_height;
2927         }
2928         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
2929         {
2930             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
2931             unsigned int j;
2932
2933             msg_Dbg( &sys.demuxer, "|   |   |   + Track Audio" );
2934
2935             for( j = 0; j < tka->ListSize(); j++ )
2936             {
2937                 EbmlElement *l = (*tka)[j];
2938
2939                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
2940                 {
2941                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
2942
2943                     tk->fmt.audio.i_rate = (int)float( afreq );
2944                     msg_Dbg( &sys.demuxer, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
2945                 }
2946                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
2947                 {
2948                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
2949
2950                     tk->fmt.audio.i_channels = uint8( achan );
2951                     msg_Dbg( &sys.demuxer, "|   |   |   |   + achan=%u", uint8( achan ) );
2952                 }
2953                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
2954                 {
2955                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
2956
2957                     tk->fmt.audio.i_bitspersample = uint8( abits );
2958                     msg_Dbg( &sys.demuxer, "|   |   |   |   + abits=%u", uint8( abits ) );
2959                 }
2960                 else
2961                 {
2962                     msg_Dbg( &sys.demuxer, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
2963                 }
2964             }
2965         }
2966         else
2967         {
2968             msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)",
2969                      typeid(*l).name() );
2970         }
2971     }
2972 }
2973
2974 /*****************************************************************************
2975  * ParseTracks:
2976  *****************************************************************************/
2977 void matroska_segment_c::ParseTracks( KaxTracks *tracks )
2978 {
2979     EbmlElement *el;
2980     unsigned int i;
2981     int i_upper_level = 0;
2982
2983     msg_Dbg( &sys.demuxer, "|   + Tracks" );
2984
2985     /* Master elements */
2986     tracks->Read( es, tracks->Generic().Context, i_upper_level, el, true );
2987
2988     for( i = 0; i < tracks->ListSize(); i++ )
2989     {
2990         EbmlElement *l = (*tracks)[i];
2991
2992         if( MKV_IS_ID( l, KaxTrackEntry ) )
2993         {
2994             ParseTrackEntry( static_cast<KaxTrackEntry *>(l) );
2995         }
2996         else
2997         {
2998             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
2999         }
3000     }
3001 }
3002
3003 /*****************************************************************************
3004  * ParseInfo:
3005  *****************************************************************************/
3006 void matroska_segment_c::ParseInfo( KaxInfo *info )
3007 {
3008     EbmlElement *el;
3009     EbmlMaster  *m;
3010     size_t i, j;
3011     int i_upper_level = 0;
3012
3013     msg_Dbg( &sys.demuxer, "|   + Information" );
3014
3015     /* Master elements */
3016     m = static_cast<EbmlMaster *>(info);
3017     m->Read( es, info->Generic().Context, i_upper_level, el, true );
3018
3019     for( i = 0; i < m->ListSize(); i++ )
3020     {
3021         EbmlElement *l = (*m)[i];
3022
3023         if( MKV_IS_ID( l, KaxSegmentUID ) )
3024         {
3025             segment_uid = *(new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l)));
3026
3027             msg_Dbg( &sys.demuxer, "|   |   + UID=%d", *(uint32*)segment_uid.GetBuffer() );
3028         }
3029         else if( MKV_IS_ID( l, KaxPrevUID ) )
3030         {
3031             prev_segment_uid = *(new KaxPrevUID(*static_cast<KaxPrevUID*>(l)));
3032
3033             msg_Dbg( &sys.demuxer, "|   |   + PrevUID=%d", *(uint32*)prev_segment_uid.GetBuffer() );
3034         }
3035         else if( MKV_IS_ID( l, KaxNextUID ) )
3036         {
3037             next_segment_uid = *(new KaxNextUID(*static_cast<KaxNextUID*>(l)));
3038
3039             msg_Dbg( &sys.demuxer, "|   |   + NextUID=%d", *(uint32*)next_segment_uid.GetBuffer() );
3040         }
3041         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
3042         {
3043             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
3044
3045             i_timescale = uint64(tcs);
3046
3047             msg_Dbg( &sys.demuxer, "|   |   + TimecodeScale="I64Fd,
3048                      i_timescale );
3049         }
3050         else if( MKV_IS_ID( l, KaxDuration ) )
3051         {
3052             KaxDuration &dur = *(KaxDuration*)l;
3053
3054             i_duration = mtime_t( double( dur ) );
3055
3056             msg_Dbg( &sys.demuxer, "|   |   + Duration="I64Fd,
3057                      i_duration );
3058         }
3059         else if( MKV_IS_ID( l, KaxMuxingApp ) )
3060         {
3061             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
3062
3063             psz_muxing_application = UTF8ToStr( UTFstring( mapp ) );
3064
3065             msg_Dbg( &sys.demuxer, "|   |   + Muxing Application=%s",
3066                      psz_muxing_application );
3067         }
3068         else if( MKV_IS_ID( l, KaxWritingApp ) )
3069         {
3070             KaxWritingApp &wapp = *(KaxWritingApp*)l;
3071
3072             psz_writing_application = UTF8ToStr( UTFstring( wapp ) );
3073
3074             msg_Dbg( &sys.demuxer, "|   |   + Writing Application=%s",
3075                      psz_writing_application );
3076         }
3077         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
3078         {
3079             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
3080
3081             psz_segment_filename = UTF8ToStr( UTFstring( sfn ) );
3082
3083             msg_Dbg( &sys.demuxer, "|   |   + Segment Filename=%s",
3084                      psz_segment_filename );
3085         }
3086         else if( MKV_IS_ID( l, KaxTitle ) )
3087         {
3088             KaxTitle &title = *(KaxTitle*)l;
3089
3090             psz_title = UTF8ToStr( UTFstring( title ) );
3091
3092             msg_Dbg( &sys.demuxer, "|   |   + Title=%s", psz_title );
3093         }
3094         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
3095         {
3096             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
3097
3098             families.push_back(*uid);
3099
3100             msg_Dbg( &sys.demuxer, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
3101         }
3102 #if defined( HAVE_GMTIME_R ) && !defined( SYS_DARWIN )
3103         else if( MKV_IS_ID( l, KaxDateUTC ) )
3104         {
3105             KaxDateUTC &date = *(KaxDateUTC*)l;
3106             time_t i_date;
3107             struct tm tmres;
3108             char   buffer[256];
3109
3110             i_date = date.GetEpochDate();
3111             memset( buffer, 0, 256 );
3112             if( gmtime_r( &i_date, &tmres ) &&
3113                 asctime_r( &tmres, buffer ) )
3114             {
3115                 buffer[strlen( buffer)-1]= '\0';
3116                 psz_date_utc = strdup( buffer );
3117                 msg_Dbg( &sys.demuxer, "|   |   + Date=%s", psz_date_utc );
3118             }
3119         }
3120 #endif
3121 #if LIBMATROSKA_VERSION >= 0x000704
3122         else if( MKV_IS_ID( l, KaxChapterTranslate ) )
3123         {
3124             KaxChapterTranslate *p_trans = static_cast<KaxChapterTranslate*>( l );
3125             chapter_translation_c translated;
3126
3127             p_trans->Read( es, p_trans->Generic().Context, i_upper_level, el, true );
3128             for( j = 0; j < p_trans->ListSize(); j++ )
3129             {
3130                 EbmlElement *l = (*p_trans)[j];
3131
3132                 if( MKV_IS_ID( l, KaxChapterTranslateEditionUID ) )
3133                 {
3134                     translated.editions.push_back( uint64( *static_cast<KaxChapterTranslateEditionUID*>( l ) ) );
3135                 }
3136                 else if( MKV_IS_ID( l, KaxChapterTranslateCodec ) )
3137                 {
3138                     translated.codec_id = uint32( *static_cast<KaxChapterTranslateCodec*>( l ) );
3139                 }
3140                 else if( MKV_IS_ID( l, KaxChapterTranslateID ) )
3141                 {
3142                     translated.translated = *( new KaxChapterTranslateID( *static_cast<KaxChapterTranslateID*>( l ) ) );
3143                 }
3144             }
3145
3146             translations.push_back( translated );
3147         }
3148 #endif
3149         else
3150         {
3151             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
3152         }
3153     }
3154
3155     double f_dur = double(i_duration) * double(i_timescale) / 1000000.0;
3156     i_duration = mtime_t(f_dur);
3157 }
3158
3159
3160 /*****************************************************************************
3161  * ParseChapterAtom
3162  *****************************************************************************/
3163 void matroska_segment_c::ParseChapterAtom( int i_level, KaxChapterAtom *ca, chapter_item_c & chapters )
3164 {
3165     size_t i, j;
3166
3167     if( sys.title == NULL )
3168     {
3169         sys.title = vlc_input_title_New();
3170     }
3171
3172     msg_Dbg( &sys.demuxer, "|   |   |   + ChapterAtom (level=%d)", i_level );
3173     for( i = 0; i < ca->ListSize(); i++ )
3174     {
3175         EbmlElement *l = (*ca)[i];
3176
3177         if( MKV_IS_ID( l, KaxChapterUID ) )
3178         {
3179             chapters.i_uid = uint64_t(*(KaxChapterUID*)l);
3180             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterUID: %lld", chapters.i_uid );
3181         }
3182         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
3183         {
3184             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
3185             chapters.b_display_seekpoint = uint8( flag ) == 0;
3186
3187             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterFlagHidden: %s", chapters.b_display_seekpoint ? "no":"yes" );
3188         }
3189         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
3190         {
3191             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
3192             chapters.i_start_time = uint64( start ) / I64C(1000);
3193
3194             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeStart: %lld", chapters.i_start_time );
3195         }
3196         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
3197         {
3198             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
3199             chapters.i_end_time = uint64( end ) / I64C(1000);
3200
3201             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterTimeEnd: %lld", chapters.i_end_time );
3202         }
3203         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
3204         {
3205             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
3206
3207             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterDisplay" );
3208             for( j = 0; j < cd->ListSize(); j++ )
3209             {
3210                 EbmlElement *l= (*cd)[j];
3211
3212                 if( MKV_IS_ID( l, KaxChapterString ) )
3213                 {
3214                     int k;
3215
3216                     KaxChapterString &name =*(KaxChapterString*)l;
3217                     for (k = 0; k < i_level; k++)
3218                         chapters.psz_name += '+';
3219                     chapters.psz_name += ' ';
3220                     chapters.psz_name += UTF8ToStr( UTFstring( name ) );
3221
3222                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterString '%s'", UTF8ToStr(UTFstring(name)) );
3223                 }
3224                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
3225                 {
3226                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
3227                     const char *psz = string( lang ).c_str();
3228
3229                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
3230                 }
3231                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
3232                 {
3233                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
3234                     const char *psz = string( ct ).c_str();
3235
3236                     msg_Dbg( &sys.demuxer, "|   |   |   |   |    + ChapterCountry '%s'", psz );
3237                 }
3238             }
3239         }
3240         else if( MKV_IS_ID( l, KaxChapterProcess ) )
3241         {
3242             msg_Dbg( &sys.demuxer, "|   |   |   |   + ChapterProcess" );
3243
3244             KaxChapterProcess *cp = static_cast<KaxChapterProcess *>(l);
3245             chapter_codec_cmds_c *p_ccodec = NULL;
3246
3247             for( j = 0; j < cp->ListSize(); j++ )
3248             {
3249                 EbmlElement *k= (*cp)[j];
3250
3251                 if( MKV_IS_ID( k, KaxChapterProcessCodecID ) )
3252                 {
3253                     KaxChapterProcessCodecID *p_codec_id = static_cast<KaxChapterProcessCodecID*>( k );
3254                     if ( uint32(*p_codec_id) == 0 )
3255                         p_ccodec = new matroska_script_codec_c();
3256                     else if ( uint32(*p_codec_id) == 1 )
3257                         p_ccodec = new dvd_chapter_codec_c();
3258                     break;
3259                 }
3260             }
3261
3262             if ( p_ccodec != NULL )
3263             {
3264                 for( j = 0; j < cp->ListSize(); j++ )
3265                 {
3266                     EbmlElement *k= (*cp)[j];
3267
3268                     if( MKV_IS_ID( k, KaxChapterProcessPrivate ) )
3269                     {
3270                         KaxChapterProcessPrivate * p_private = static_cast<KaxChapterProcessPrivate*>( k );
3271                         p_ccodec->SetPrivate( *p_private );
3272                     }
3273                     else if( MKV_IS_ID( k, KaxChapterProcessCommand ) )
3274                     {
3275                         p_ccodec->AddCommand( *static_cast<KaxChapterProcessCommand*>( k ) );
3276                     }
3277                 }
3278                 chapters.codecs.push_back( p_ccodec );
3279             }
3280         }
3281         else if( MKV_IS_ID( l, KaxChapterAtom ) )
3282         {
3283             chapter_item_c *new_sub_chapter = new chapter_item_c();
3284             ParseChapterAtom( i_level+1, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
3285             new_sub_chapter->psz_parent = &chapters;
3286             chapters.sub_chapters.push_back( new_sub_chapter );
3287         }
3288     }
3289 }
3290
3291 /*****************************************************************************
3292  * ParseChapters:
3293  *****************************************************************************/
3294 void matroska_segment_c::ParseChapters( KaxChapters *chapters )
3295 {
3296     EbmlElement *el;
3297     size_t i;
3298     int i_upper_level = 0;
3299     mtime_t i_dur;
3300
3301     /* Master elements */
3302     chapters->Read( es, chapters->Generic().Context, i_upper_level, el, true );
3303
3304     for( i = 0; i < chapters->ListSize(); i++ )
3305     {
3306         EbmlElement *l = (*chapters)[i];
3307
3308         if( MKV_IS_ID( l, KaxEditionEntry ) )
3309         {
3310             chapter_edition_c *p_edition = new chapter_edition_c();
3311
3312             EbmlMaster *E = static_cast<EbmlMaster *>(l );
3313             size_t j;
3314             msg_Dbg( &sys.demuxer, "|   |   + EditionEntry" );
3315             for( j = 0; j < E->ListSize(); j++ )
3316             {
3317                 EbmlElement *l = (*E)[j];
3318
3319                 if( MKV_IS_ID( l, KaxChapterAtom ) )
3320                 {
3321                     chapter_item_c *new_sub_chapter = new chapter_item_c();
3322                     ParseChapterAtom( 0, static_cast<KaxChapterAtom *>(l), *new_sub_chapter );
3323                     p_edition->sub_chapters.push_back( new_sub_chapter );
3324                 }
3325                 else if( MKV_IS_ID( l, KaxEditionUID ) )
3326                 {
3327                     p_edition->i_uid = uint64(*static_cast<KaxEditionUID *>( l ));
3328                 }
3329                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
3330                 {
3331                     p_edition->b_ordered = config_GetInt( &sys.demuxer, "mkv-use-ordered-chapters" ) ? (uint8(*static_cast<KaxEditionFlagOrdered *>( l )) != 0) : 0;
3332                 }
3333                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
3334                 {
3335                     if (uint8(*static_cast<KaxEditionFlagDefault *>( l )) != 0)
3336                         i_default_edition = stored_editions.size();
3337                 }
3338                 else
3339                 {
3340                     msg_Dbg( &sys.demuxer, "|   |   |   + Unknown (%s)", typeid(*l).name() );
3341                 }
3342             }
3343             stored_editions.push_back( p_edition );
3344         }
3345         else
3346         {
3347             msg_Dbg( &sys.demuxer, "|   |   + Unknown (%s)", typeid(*l).name() );
3348         }
3349     }
3350
3351     for( i = 0; i < stored_editions.size(); i++ )
3352     {
3353         stored_editions[i]->RefreshChapters( );
3354     }
3355
3356     if ( stored_editions[i_default_edition]->b_ordered )
3357     {
3358         /* update the duration of the segment according to the sum of all sub chapters */
3359         i_dur = stored_editions[i_default_edition]->Duration() / I64C(1000);
3360         if (i_dur > 0)
3361             i_duration = i_dur;
3362     }
3363 }
3364
3365 void matroska_segment_c::ParseCluster( )
3366 {
3367     EbmlElement *el;
3368     EbmlMaster  *m;
3369     unsigned int i;
3370     int i_upper_level = 0;
3371
3372     /* Master elements */
3373     m = static_cast<EbmlMaster *>( cluster );
3374     m->Read( es, cluster->Generic().Context, i_upper_level, el, true );
3375
3376     for( i = 0; i < m->ListSize(); i++ )
3377     {
3378         EbmlElement *l = (*m)[i];
3379
3380         if( MKV_IS_ID( l, KaxClusterTimecode ) )
3381         {
3382             KaxClusterTimecode &ctc = *(KaxClusterTimecode*)l;
3383
3384             cluster->InitTimecode( uint64( ctc ), i_timescale );
3385             break;
3386         }
3387     }
3388
3389     i_start_time = cluster->GlobalTimecode() / 1000;
3390 }
3391
3392 /*****************************************************************************
3393  * InformationCreate:
3394  *****************************************************************************/
3395 void matroska_segment_c::InformationCreate( )
3396 {
3397     size_t      i_track;
3398
3399     sys.meta = vlc_meta_New();
3400
3401     if( psz_title )
3402     {
3403         vlc_meta_Add( sys.meta, VLC_META_TITLE, psz_title );
3404     }
3405     if( psz_date_utc )
3406     {
3407         vlc_meta_Add( sys.meta, VLC_META_DATE, psz_date_utc );
3408     }
3409     if( psz_segment_filename )
3410     {
3411         vlc_meta_Add( sys.meta, _("Segment filename"), psz_segment_filename );
3412     }
3413     if( psz_muxing_application )
3414     {
3415         vlc_meta_Add( sys.meta, _("Muxing application"), psz_muxing_application );
3416     }
3417     if( psz_writing_application )
3418     {
3419         vlc_meta_Add( sys.meta, _("Writing application"), psz_writing_application );
3420     }
3421
3422     for( i_track = 0; i_track < tracks.size(); i_track++ )
3423     {
3424         mkv_track_t *tk = tracks[i_track];
3425         vlc_meta_t *mtk = vlc_meta_New();
3426
3427         sys.meta->track = (vlc_meta_t**)realloc( sys.meta->track,
3428                                                     sizeof( vlc_meta_t * ) * ( sys.meta->i_track + 1 ) );
3429         sys.meta->track[sys.meta->i_track++] = mtk;
3430
3431         if( tk->fmt.psz_description )
3432         {
3433             vlc_meta_Add( sys.meta, VLC_META_DESCRIPTION, tk->fmt.psz_description );
3434         }
3435         if( tk->psz_codec_name )
3436         {
3437             vlc_meta_Add( sys.meta, VLC_META_CODEC_NAME, tk->psz_codec_name );
3438         }
3439         if( tk->psz_codec_settings )
3440         {
3441             vlc_meta_Add( sys.meta, VLC_META_SETTING, tk->psz_codec_settings );
3442         }
3443         if( tk->psz_codec_info_url )
3444         {
3445             vlc_meta_Add( sys.meta, VLC_META_CODEC_DESCRIPTION, tk->psz_codec_info_url );
3446         }
3447         if( tk->psz_codec_download_url )
3448         {
3449             vlc_meta_Add( sys.meta, VLC_META_URL, tk->psz_codec_download_url );
3450         }
3451     }
3452
3453     if( i_tags_position >= 0 )
3454     {
3455         vlc_bool_t b_seekable;
3456
3457         stream_Control( sys.demuxer.s, STREAM_CAN_FASTSEEK, &b_seekable );
3458         if( b_seekable )
3459         {
3460             LoadTags( );
3461         }
3462     }
3463 }
3464
3465
3466 /*****************************************************************************
3467  * Divers
3468  *****************************************************************************/
3469
3470 void matroska_segment_c::IndexAppendCluster( KaxCluster *cluster )
3471 {
3472 #define idx index[i_index]
3473     idx.i_track       = -1;
3474     idx.i_block_number= -1;
3475     idx.i_position    = cluster->GetElementPosition();
3476     idx.i_time        = -1;
3477     idx.b_key         = VLC_TRUE;
3478
3479     i_index++;
3480     if( i_index >= i_index_max )
3481     {
3482         i_index_max += 1024;
3483         index = (mkv_index_t*)realloc( index, sizeof( mkv_index_t ) * i_index_max );
3484     }
3485 #undef idx
3486 }
3487
3488 static char * UTF8ToStr( const UTFstring &u )
3489 {
3490     int     i_src;
3491     const wchar_t *src;
3492     char *dst, *p;
3493
3494     i_src = u.length();
3495     src   = u.c_str();
3496
3497     p = dst = (char*)malloc( i_src + 1);
3498     while( i_src > 0 )
3499     {
3500         if( *src < 255 )
3501         {
3502             *p++ = (char)*src;
3503         }
3504         else
3505         {
3506             *p++ = '?';
3507         }
3508         src++;
3509         i_src--;
3510     }
3511     *p++= '\0';
3512
3513     return dst;
3514 }
3515
3516 void chapter_edition_c::RefreshChapters( )
3517 {
3518     chapter_item_c::RefreshChapters( b_ordered, -1 );
3519     b_display_seekpoint = false;
3520 }
3521
3522 int64_t chapter_item_c::RefreshChapters( bool b_ordered, int64_t i_prev_user_time )
3523 {
3524     int64_t i_user_time = i_prev_user_time;
3525
3526     // first the sub-chapters, and then ourself
3527     std::vector<chapter_item_c*>::iterator index = sub_chapters.begin();
3528     while ( index != sub_chapters.end() )
3529     {
3530         i_user_time = (*index)->RefreshChapters( b_ordered, i_user_time );
3531         index++;
3532     }
3533
3534     if ( b_ordered )
3535     {
3536         // the ordered chapters always start at zero
3537         if ( i_prev_user_time == -1 )
3538         {
3539             if ( i_user_time == -1 )
3540                 i_user_time = 0;
3541             i_prev_user_time = 0;
3542         }
3543
3544         i_user_start_time = i_prev_user_time;
3545         if ( i_end_time != -1 && i_user_time == i_prev_user_time )
3546         {
3547             i_user_end_time = i_user_start_time - i_start_time + i_end_time;
3548         }
3549         else
3550         {
3551             i_user_end_time = i_user_time;
3552         }
3553     }
3554     else
3555     {
3556         std::sort( sub_chapters.begin(), sub_chapters.end() );
3557         i_user_start_time = i_start_time;
3558         if ( i_end_time != -1 )
3559             i_user_end_time = i_end_time;
3560         else if ( i_user_time != -1 )
3561             i_user_end_time = i_user_time;
3562         else
3563             i_user_end_time = i_user_start_time;
3564     }
3565
3566     return i_user_end_time;
3567 }
3568
3569 mtime_t chapter_edition_c::Duration() const
3570 {
3571     mtime_t i_result = 0;
3572
3573     if ( sub_chapters.size() )
3574     {
3575         std::vector<chapter_item_c*>::const_iterator index = sub_chapters.end();
3576         index--;
3577         i_result = (*index)->i_user_end_time;
3578     }
3579
3580     return i_result;
3581 }
3582
3583 chapter_item_c *chapter_item_c::FindTimecode( mtime_t i_user_timecode )
3584 {
3585     chapter_item_c *psz_result = NULL;
3586
3587     if ( i_user_timecode >= i_user_start_time &&
3588         ( i_user_timecode < i_user_end_time ||
3589           ( i_user_start_time == i_user_end_time && i_user_timecode == i_user_end_time )))
3590     {
3591         std::vector<chapter_item_c*>::iterator index = sub_chapters.begin();
3592         while ( index != sub_chapters.end() && psz_result == NULL )
3593         {
3594             psz_result = (*index)->FindTimecode( i_user_timecode );
3595             index++;
3596         }
3597
3598         if ( psz_result == NULL )
3599             psz_result = this;
3600     }
3601
3602     return psz_result;
3603 }
3604
3605 void demux_sys_t::PreloadFamily( const matroska_segment_c & of_segment )
3606 {
3607     for (size_t i=0; i<opened_segments.size(); i++)
3608     {
3609         opened_segments[i]->PreloadFamily( of_segment );
3610     }
3611 }
3612 bool matroska_segment_c::PreloadFamily( const matroska_segment_c & of_segment )
3613 {
3614     if ( b_preloaded )
3615         return false;
3616
3617     for (size_t i=0; i<families.size(); i++)
3618     {
3619         for (size_t j=0; j<of_segment.families.size(); j++)
3620         {
3621             if ( families[i] == of_segment.families[j] )
3622                 return Preload( );
3623         }
3624     }
3625
3626     return false;
3627 }
3628
3629 // preload all the linked segments for all preloaded segments
3630 void demux_sys_t::PreloadLinked( matroska_segment_c *p_segment )
3631 {
3632     size_t i_preloaded, i;
3633
3634     delete p_current_segment;
3635     p_current_segment = new virtual_segment_c( p_segment );
3636
3637     // fill our current virtual segment with all hard linked segments
3638     do {
3639         i_preloaded = 0;
3640         for ( i=0; i< opened_segments.size(); i++ )
3641         {
3642             i_preloaded += p_current_segment->AddSegment( opened_segments[i] );
3643         }
3644     } while ( i_preloaded ); // worst case: will stop when all segments are found as linked
3645
3646     p_current_segment->Sort( );
3647
3648     p_current_segment->PreloadLinked( );
3649 }
3650
3651 bool demux_sys_t::PreparePlayback( )
3652 {
3653     p_current_segment->LoadCues();
3654     f_duration = p_current_segment->Duration();
3655
3656     /* add information */
3657     p_current_segment->Segment()->InformationCreate( );
3658
3659     p_current_segment->Segment()->Select( 0 );
3660
3661     return p_current_segment->Select( *title );
3662 }
3663
3664 bool matroska_segment_c::CompareSegmentUIDs( const matroska_segment_c * p_item_a, const matroska_segment_c * p_item_b )
3665 {
3666     EbmlBinary * p_itema = (EbmlBinary *)(&p_item_a->segment_uid);
3667     if ( *p_itema == p_item_b->prev_segment_uid )
3668         return true;
3669
3670     p_itema = (EbmlBinary *)(&p_item_a->next_segment_uid);
3671     if ( *p_itema == p_item_b->segment_uid )
3672         return true;
3673
3674     if ( *p_itema == p_item_b->prev_segment_uid )
3675         return true;
3676
3677     return false;
3678 }
3679
3680 bool matroska_segment_c::Preload( )
3681 {
3682     if ( b_preloaded )
3683         return false;
3684
3685     EbmlElement *el = NULL;
3686
3687     ep->Reset( &sys.demuxer );
3688
3689     while( ( el = ep->Get() ) != NULL )
3690     {
3691         if( MKV_IS_ID( el, KaxInfo ) )
3692         {
3693             ParseInfo( static_cast<KaxInfo*>( el ) );
3694         }
3695         else if( MKV_IS_ID( el, KaxTracks ) )
3696         {
3697             ParseTracks( static_cast<KaxTracks*>( el ) );
3698         }
3699         else if( MKV_IS_ID( el, KaxSeekHead ) )
3700         {
3701             ParseSeekHead( static_cast<KaxSeekHead*>( el ) );
3702         }
3703         else if( MKV_IS_ID( el, KaxCues ) )
3704         {
3705             msg_Dbg( &sys.demuxer, "|   + Cues" );
3706         }
3707         else if( MKV_IS_ID( el, KaxCluster ) )
3708         {
3709             msg_Dbg( &sys.demuxer, "|   + Cluster" );
3710
3711             cluster = (KaxCluster*)el;
3712
3713             i_start_pos = cluster->GetElementPosition();
3714             ParseCluster( );
3715
3716             ep->Down();
3717             /* stop parsing the stream */
3718             break;
3719         }
3720         else if( MKV_IS_ID( el, KaxAttachments ) )
3721         {
3722             msg_Dbg( &sys.demuxer, "|   + Attachments FIXME TODO (but probably never supported)" );
3723         }
3724         else if( MKV_IS_ID( el, KaxChapters ) )
3725         {
3726             msg_Dbg( &sys.demuxer, "|   + Chapters" );
3727             ParseChapters( static_cast<KaxChapters*>( el ) );
3728         }
3729         else if( MKV_IS_ID( el, KaxTag ) )
3730         {
3731             msg_Dbg( &sys.demuxer, "|   + Tags FIXME TODO" );
3732         }
3733         else
3734         {
3735             msg_Dbg( &sys.demuxer, "|   + Unknown (%s)", typeid(*el).name() );
3736         }
3737     }
3738
3739     b_preloaded = true;
3740
3741     return true;
3742 }
3743
3744 matroska_segment_c *demux_sys_t::FindSegment( const EbmlBinary & uid ) const
3745 {
3746     for (size_t i=0; i<opened_segments.size(); i++)
3747     {
3748         if ( opened_segments[i]->segment_uid == uid )
3749             return opened_segments[i];
3750     }
3751     return NULL;
3752 }
3753
3754 void virtual_segment_c::Sort()
3755 {
3756     // keep the current segment index
3757     matroska_segment_c *p_segment = linked_segments[i_current_segment];
3758
3759     std::sort( linked_segments.begin(), linked_segments.end(), matroska_segment_c::CompareSegmentUIDs );
3760
3761     for ( i_current_segment=0; i_current_segment<linked_segments.size(); i_current_segment++)
3762         if ( linked_segments[i_current_segment] == p_segment )
3763             break;
3764 }
3765
3766 size_t virtual_segment_c::AddSegment( matroska_segment_c *p_segment )
3767 {
3768     size_t i;
3769     // check if it's not already in here
3770     for ( i=0; i<linked_segments.size(); i++ )
3771     {
3772         if ( p_segment->segment_uid == linked_segments[i]->segment_uid )
3773             return 0;
3774     }
3775
3776     // find possible mates
3777     for ( i=0; i<linked_uids.size(); i++ )
3778     {
3779         if (   p_segment->segment_uid == linked_uids[i]
3780             || p_segment->prev_segment_uid == linked_uids[i]
3781             || p_segment->next_segment_uid == linked_uids[i] )
3782         {
3783             linked_segments.push_back( p_segment );
3784
3785             AppendUID( p_segment->prev_segment_uid );
3786             AppendUID( p_segment->next_segment_uid );
3787
3788             return 1;
3789         }
3790     }
3791     return 0;
3792 }
3793
3794 void virtual_segment_c::PreloadLinked( )
3795 {
3796     for ( size_t i=0; i<linked_segments.size(); i++ )
3797     {
3798         linked_segments[i]->Preload( );
3799     }
3800     i_current_edition = linked_segments[0]->i_default_edition;
3801 }
3802
3803 mtime_t virtual_segment_c::Duration() const
3804 {
3805     mtime_t i_duration;
3806     if ( linked_segments.size() == 0 )
3807         i_duration = 0;
3808     else {
3809         matroska_segment_c *p_last_segment = linked_segments[linked_segments.size()-1];
3810 //        p_last_segment->ParseCluster( );
3811
3812         i_duration = p_last_segment->i_start_time / 1000 + p_last_segment->i_duration;
3813     }
3814     return i_duration;
3815 }
3816
3817 void virtual_segment_c::LoadCues( )
3818 {
3819     for ( size_t i=0; i<linked_segments.size(); i++ )
3820     {
3821         linked_segments[i]->LoadCues();
3822     }
3823 }
3824
3825 void virtual_segment_c::AppendUID( const EbmlBinary & UID )
3826 {
3827     if ( UID.GetBuffer() == NULL )
3828         return;
3829
3830     for (size_t i=0; i<linked_uids.size(); i++)
3831     {
3832         if ( UID == linked_uids[i] )
3833             return;
3834     }
3835     linked_uids.push_back( *(KaxSegmentUID*)(&UID) );
3836 }
3837
3838 void matroska_segment_c::Seek( mtime_t i_date, mtime_t i_time_offset )
3839 {
3840     KaxBlock    *block;
3841     int         i_track_skipping;
3842     int64_t     i_block_duration;
3843     int64_t     i_block_ref1;
3844     int64_t     i_block_ref2;
3845     size_t      i_track;
3846     int64_t     i_seek_position = i_start_pos;
3847     int64_t     i_seek_time = i_start_time;
3848
3849     if ( i_index > 0 )
3850     {
3851         int i_idx = 0;
3852
3853         for( ; i_idx < i_index; i_idx++ )
3854         {
3855             if( index[i_idx].i_time + i_time_offset > i_date )
3856             {
3857                 break;
3858             }
3859         }
3860
3861         if( i_idx > 0 )
3862         {
3863             i_idx--;
3864         }
3865
3866         i_seek_position = index[i_idx].i_position;
3867         i_seek_time = index[i_idx].i_time;
3868     }
3869
3870     msg_Dbg( &sys.demuxer, "seek got "I64Fd" (%d%%)",
3871                 i_seek_time, (int)( 100 * i_seek_position / stream_Size( sys.demuxer.s ) ) );
3872
3873     es.I_O().setFilePointer( i_seek_position, seek_beginning );
3874
3875     delete ep;
3876     ep = new EbmlParser( &es, segment, &sys.demuxer );
3877     cluster = NULL;
3878
3879     sys.i_start_pts = i_date;
3880
3881     es_out_Control( sys.demuxer.out, ES_OUT_RESET_PCR );
3882
3883     /* now parse until key frame */
3884 #define tk  tracks[i_track]
3885     i_track_skipping = 0;
3886     for( i_track = 0; i_track < tracks.size(); i_track++ )
3887     {
3888         if( tk->fmt.i_cat == VIDEO_ES )
3889         {
3890             tk->b_search_keyframe = VLC_TRUE;
3891             i_track_skipping++;
3892         }
3893         es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, tk->p_es, i_date );
3894     }
3895
3896
3897     while( i_track_skipping > 0 )
3898     {
3899         if( BlockGet( &block, &i_block_ref1, &i_block_ref2, &i_block_duration ) )
3900         {
3901             msg_Warn( &sys.demuxer, "cannot get block EOF?" );
3902
3903             return;
3904         }
3905
3906         for( i_track = 0; i_track < tracks.size(); i_track++ )
3907         {
3908             if( tk->i_number == block->TrackNum() )
3909             {
3910                 break;
3911             }
3912         }
3913
3914         sys.i_pts = sys.i_chapter_time + block->GlobalTimecode() / (mtime_t) 1000;
3915
3916         if( i_track < tracks.size() )
3917         {
3918             if( sys.i_pts >= sys.i_start_pts )
3919             {
3920                 BlockDecode( &sys.demuxer, block, sys.i_pts, 0 );
3921                 i_track_skipping = 0;
3922             }
3923             else if( tk->fmt.i_cat == VIDEO_ES )
3924             {
3925                 if( i_block_ref1 == -1 && tk->b_search_keyframe )
3926                 {
3927                     tk->b_search_keyframe = VLC_FALSE;
3928                     i_track_skipping--;
3929                 }
3930                 if( !tk->b_search_keyframe )
3931                 {
3932                     BlockDecode( &sys.demuxer, block, sys.i_pts, 0 );
3933                 }
3934             }
3935         }
3936
3937         delete block;
3938     }
3939 #undef tk
3940 }
3941
3942 void virtual_segment_c::Seek( demux_t & demuxer, mtime_t i_date, mtime_t i_time_offset, chapter_item_c *psz_chapter )
3943 {
3944     demux_sys_t *p_sys = demuxer.p_sys;
3945     size_t i;
3946
3947     // find the actual time for an ordered edition
3948     if ( psz_chapter == NULL )
3949     {
3950         if ( EditionIsOrdered() )
3951         {
3952             /* 1st, we need to know in which chapter we are */
3953             psz_chapter = (*p_editions)[i_current_edition]->FindTimecode( i_date );
3954         }
3955     }
3956
3957     if ( psz_chapter != NULL )
3958     {
3959         psz_current_chapter = psz_chapter;
3960         p_sys->i_chapter_time = i_time_offset = psz_chapter->i_user_start_time - psz_chapter->i_start_time;
3961         demuxer.info.i_update |= INPUT_UPDATE_SEEKPOINT;
3962         demuxer.info.i_seekpoint = psz_chapter->i_seekpoint_num - 1;
3963     }
3964
3965     // find the best matching segment
3966     for ( i=0; i<linked_segments.size(); i++ )
3967     {
3968         if ( i_date < linked_segments[i]->i_start_time )
3969             break;
3970     }
3971
3972     if ( i > 0 )
3973         i--;
3974
3975     if ( i_current_segment != i  )
3976     {
3977         linked_segments[i_current_segment]->UnSelect();
3978         linked_segments[i]->Select( i_date );
3979         i_current_segment = i;
3980     }
3981
3982     linked_segments[i]->Seek( i_date, i_time_offset );
3983 }
3984
3985 void chapter_codec_cmds_c::AddCommand( const KaxChapterProcessCommand & command )
3986 {
3987     size_t i;
3988
3989     uint32 codec_time = uint32(-1);
3990     for( i = 0; i < command.ListSize(); i++ )
3991     {
3992         const EbmlElement *k = command[i];
3993
3994         if( MKV_IS_ID( k, KaxChapterProcessTime ) )
3995         {
3996             codec_time = uint32( *static_cast<const KaxChapterProcessTime*>( k ) );
3997             break;
3998         }
3999     }
4000
4001     for( i = 0; i < command.ListSize(); i++ )
4002     {
4003         const EbmlElement *k = command[i];
4004
4005         if( MKV_IS_ID( k, KaxChapterProcessData ) )
4006         {
4007             KaxChapterProcessData *p_data =  new KaxChapterProcessData( *static_cast<const KaxChapterProcessData*>( k ) );
4008             switch ( codec_time )
4009             {
4010             case 0:
4011                 during_cmds.push_back( *p_data );
4012                 break;
4013             case 1:
4014                 enter_cmds.push_back( *p_data );
4015                 break;
4016             case 2:
4017                 leave_cmds.push_back( *p_data );
4018                 break;
4019             default:
4020                 delete p_data;
4021             }
4022         }
4023     }
4024 }
4025
4026 bool chapter_item_c::Enter()
4027 {
4028     std::vector<chapter_codec_cmds_c*>::iterator index = codecs.begin();
4029     while ( index != codecs.end() )
4030     {
4031         (*index)->Enter();
4032         index++;
4033     }
4034     return true;
4035 }
4036
4037 bool chapter_item_c::Leave()
4038 {
4039     std::vector<chapter_codec_cmds_c*>::iterator index = codecs.begin();
4040     while ( index != codecs.end() )
4041     {
4042         (*index)->Leave();
4043         index++;
4044     }
4045     return true;
4046 }
4047
4048 bool dvd_chapter_codec_c::Enter()
4049 {
4050     std::vector<KaxChapterProcessData>::iterator index = enter_cmds.begin();
4051     while ( index != enter_cmds.end() )
4052     {
4053         if ( (*index).GetSize() )
4054         {
4055             binary *p_data = (*index).GetBuffer();
4056             size_t i_size = *p_data++;
4057             // avoid reading too much from the buffer
4058             i_size = min( i_size, ((*index).GetSize() - 1) >> 3 );
4059             for ( ; i_size > 0; i_size--, p_data += 8 )
4060             {
4061                 interpretor.Interpret( p_data );
4062             }
4063         }
4064         index++;
4065     }
4066     return true;
4067 }
4068
4069 bool dvd_chapter_codec_c::Leave()
4070 {
4071     std::vector<KaxChapterProcessData>::iterator index = leave_cmds.begin();
4072     while ( index != leave_cmds.end() )
4073     {
4074         if ( (*index).GetSize() )
4075         {
4076             binary *p_data = (*index).GetBuffer();
4077             size_t i_size = *p_data++;
4078             // avoid reading too much from the buffer
4079             i_size = min( i_size, ((*index).GetSize() - 1) >> 3 );
4080             for ( ; i_size > 0; i_size--, p_data += 8 )
4081             {
4082                 interpretor.Interpret( p_data );
4083             }
4084         }
4085         index++;
4086     }
4087     return true;
4088 }
4089
4090 bool dvd_command_interpretor_c::Interpret( const binary * p_command, size_t i_size )
4091 {
4092     if ( i_size != 8 )
4093         return false;
4094
4095     uint16 i_command = ( p_command[0] << 8 ) + p_command[1];
4096
4097     switch ( i_command )
4098     {
4099     case CMD_JUMP_TT:
4100         {
4101             uint8 i_title = p_command[5];
4102             // TODO find in the ChapProcessPrivate matching this Title level
4103             break;
4104         }
4105     }
4106
4107     return true;
4108 }