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