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