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