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

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