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
  48 #ifdef HAVE_DIRENT_H
  49 #   include <dirent.h>
  50 #else
  51 #   include "../../src/extras/dirent.h"
  52 #endif
  53
  54 /* libebml and matroska */
  55 #include "ebml/EbmlHead.h"
  56 #include "ebml/EbmlSubHead.h"
  57 #include "ebml/EbmlStream.h"
  58 #include "ebml/EbmlContexts.h"
  59 #include "ebml/EbmlVoid.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
  84 #include "ebml/StdIOCallback.h"
  85
  86 extern "C" {
  87    #include "mp4/libmp4.h"
  88 }
  89 #ifdef HAVE_ZLIB_H
  90 #   include <zlib.h>
  91 #endif
  92
  93 #define MATROSKA_COMPRESSION_NONE 0
  94 #define MATROSKA_COMPRESSION_ZLIB 1
  95
  96 /**
  97  * What's between a directory and a filename?
  98  */
  99 #if defined( WIN32 )
 100     #define DIRECTORY_SEPARATOR '\\'
 101 #else
 102     #define DIRECTORY_SEPARATOR '/'
 103 #endif
 104
 105 using namespace LIBMATROSKA_NAMESPACE;
 106 using namespace std;
 107
 108 /*****************************************************************************
 109  * Module descriptor
 110  *****************************************************************************/
 111 static int  Open ( vlc_object_t * );
 112 static void Close( vlc_object_t * );
 113
 114 vlc_module_begin();
 115     set_shortname( _("Matroska") );
 116     set_description( _("Matroska stream demuxer" ) );
 117     set_capability( "demux2", 50 );
 118     set_callbacks( Open, Close );
 119     set_category( CAT_INPUT );
 120     set_subcategory( SUBCAT_INPUT_DEMUX );
 121
 122     add_bool( "mkv-seek-percent", 1, NULL,
 123             N_("Seek based on percent not time"),
 124             N_("Seek based on percent not time"), VLC_TRUE );
 125
 126     add_shortcut( "mka" );
 127     add_shortcut( "mkv" );
 128 vlc_module_end();
 129
 130 /*****************************************************************************
 131  * Local prototypes
 132  *****************************************************************************/
 133 static int  Demux  ( demux_t * );
 134 static int  Control( demux_t *, int, va_list );
 135 static void Seek   ( demux_t *, mtime_t i_date, double f_percent );
 136
 137 #ifdef HAVE_ZLIB_H
 138 block_t *block_zlib_decompress( vlc_object_t *p_this, block_t *p_in_block ) {
 139     int result, dstsize, n;
 140     unsigned char *dst;
 141     block_t *p_block;
 142     z_stream d_stream;
 143
 144     d_stream.zalloc = (alloc_func)0;
 145     d_stream.zfree = (free_func)0;
 146     d_stream.opaque = (voidpf)0;
 147     result = inflateInit(&d_stream);
 148     if( result != Z_OK )
 149     {
 150         msg_Dbg( p_this, "inflateInit() failed. Result: %d", result );
 151         return NULL;
 152     }
 153
 154     d_stream.next_in = (Bytef *)p_in_block->p_buffer;
 155     d_stream.avail_in = p_in_block->i_buffer;
 156     n = 0;
 157     p_block = block_New( p_this, 0 );
 158     dst = NULL;
 159     do
 160     {
 161         n++;
 162         p_block = block_Realloc( p_block, 0, n * 1000 );
 163         dst = (unsigned char *)p_block->p_buffer;
 164         d_stream.next_out = (Bytef *)&dst[(n - 1) * 1000];
 165         d_stream.avail_out = 1000;
 166         result = inflate(&d_stream, Z_NO_FLUSH);
 167         if( ( result != Z_OK ) && ( result != Z_STREAM_END ) )
 168         {
 169             msg_Dbg( p_this, "Zlib decompression failed. Result: %d", result );
 170             return NULL;
 171         }
 172     }
 173     while( ( d_stream.avail_out == 0 ) && ( d_stream.avail_in != 0 ) &&
 174            ( result != Z_STREAM_END ) );
 175
 176     dstsize = d_stream.total_out;
 177     inflateEnd( &d_stream );
 178
 179     p_block = block_Realloc( p_block, 0, dstsize );
 180     p_block->i_buffer = dstsize;
 181     block_Release( p_in_block );
 182
 183     return p_block;
 184 }
 185 #endif
 186
 187 /**
 188  * Helper function to print the mkv parse tree
 189  */
 190 static void MkvTree( demux_t *p_this, int i_level, char *psz_format, ... )
 191 {
 192     va_list args;
 193     if( i_level > 9 )
 194     {
 195         msg_Err( p_this, "too deep tree" );
 196         return;
 197     }
 198     va_start( args, psz_format );
 199     static char *psz_foo = "|   |   |   |   |   |   |   |   |   |";
 200     char *psz_foo2 = (char*)malloc( ( i_level * 4 + 3 + strlen( psz_format ) ) * sizeof(char) );
 201     strncpy( psz_foo2, psz_foo, 4 * i_level );
 202     psz_foo2[ 4 * i_level ] = '+';
 203     psz_foo2[ 4 * i_level + 1 ] = ' ';
 204     strcpy( &psz_foo2[ 4 * i_level + 2 ], psz_format );
 205     __msg_GenericVa( VLC_OBJECT(p_this), VLC_MSG_DBG, "mkv", psz_foo2, args );
 206     free( psz_foo2 );
 207     va_end( args );
 208 }
 209
 210 /*****************************************************************************
 211  * Stream managment
 212  *****************************************************************************/
 213 class vlc_stream_io_callback: public IOCallback
 214 {
 215   private:
 216     stream_t       *s;
 217     vlc_bool_t     mb_eof;
 218
 219   public:
 220     vlc_stream_io_callback( stream_t * );
 221
 222     virtual uint32   read            ( void *p_buffer, size_t i_size);
 223     virtual void     setFilePointer  ( int64_t i_offset, seek_mode mode = seek_beginning );
 224     virtual size_t   write           ( const void *p_buffer, size_t i_size);
 225     virtual uint64   getFilePointer  ( void );
 226     virtual void     close           ( void );
 227 };
 228
 229 /*****************************************************************************
 230  * Ebml Stream parser
 231  *****************************************************************************/
 232 class EbmlParser
 233 {
 234   public:
 235     EbmlParser( EbmlStream *es, EbmlElement *el_start );
 236     ~EbmlParser( void );
 237
 238     void Up( void );
 239     void Down( void );
 240     EbmlElement *Get( void );
 241     void        Keep( void );
 242
 243     int GetLevel( void );
 244
 245   private:
 246     EbmlStream  *m_es;
 247     int         mi_level;
 248     EbmlElement *m_el[10];
 249
 250     EbmlElement *m_got;
 251
 252     int         mi_user_level;
 253     vlc_bool_t  mb_keep;
 254 };
 255
 256
 257 /*****************************************************************************
 258  * Some functions to manipulate memory
 259  *****************************************************************************/
 260 #define GetFOURCC( p )  __GetFOURCC( (uint8_t*)p )
 261 static vlc_fourcc_t __GetFOURCC( uint8_t *p )
 262 {
 263     return VLC_FOURCC( p[0], p[1], p[2], p[3] );
 264 }
 265
 266 /*****************************************************************************
 267  * definitions of structures and functions used by this plugins
 268  *****************************************************************************/
 269 typedef struct
 270 {
 271     vlc_bool_t  b_default;
 272     vlc_bool_t  b_enabled;
 273     int         i_number;
 274
 275     int         i_extra_data;
 276     uint8_t     *p_extra_data;
 277
 278     char         *psz_codec;
 279
 280     uint64_t     i_default_duration;
 281     float        f_timecodescale;
 282
 283     /* video */
 284     es_format_t fmt;
 285     float       f_fps;
 286     es_out_id_t *p_es;
 287
 288     vlc_bool_t      b_inited;
 289     /* data to be send first */
 290     int             i_data_init;
 291     uint8_t         *p_data_init;
 292
 293     /* hack : it's for seek */
 294     vlc_bool_t      b_search_keyframe;
 295
 296     /* informative */
 297     char         *psz_codec_name;
 298     char         *psz_codec_settings;
 299     char         *psz_codec_info_url;
 300     char         *psz_codec_download_url;
 301
 302     /* encryption/compression */
 303     int           i_compression_type;
 304
 305 } mkv_track_t;
 306
 307 typedef struct
 308 {
 309     int     i_track;
 310     int     i_block_number;
 311
 312     int64_t i_position;
 313     int64_t i_time;
 314
 315     vlc_bool_t b_key;
 316 } mkv_index_t;
 317
 318 class chapter_item_t
 319 {
 320 public:
 321         int64_t                     i_start_time, i_end_time;
 322         int64_t                     i_absolute_start_time; /* the time in the stream when an edition is ordered */
 323         std::vector<chapter_item_t> sub_chapters;
 324         int                                                 i_current_sub_chapter;
 325         int                         i_seekpoint_num;
 326 };
 327
 328 class chapter_edition_t
 329 {
 330 public:
 331         chapter_edition_t()
 332         :i_uid(-1)
 333         ,b_ordered(false)
 334         {}
 335
 336         std::vector<chapter_item_t> chapters;
 337         int64_t                     i_uid;
 338         bool                        b_ordered;
 339 };
 340
 341 class demux_sys_t
 342 {
 343 public:
 344     demux_sys_t()
 345         :in(NULL)
 346         ,es(NULL)
 347         ,ep(NULL)
 348         ,i_timescale(0)
 349         ,f_duration(0.0)
 350         ,i_track(0)
 351         ,track(NULL)
 352         ,i_cues_position(0)
 353         ,i_chapters_position(0)
 354         ,i_tags_position(0)
 355         ,segment(NULL)
 356         ,cluster(NULL)
 357         ,i_pts(0)
 358         ,i_start_pts(0)
 359         ,b_cues(false)
 360         ,i_index(0)
 361         ,i_index_max(0)
 362         ,index(NULL)
 363         ,psz_muxing_application(NULL)
 364         ,psz_writing_application(NULL)
 365         ,psz_segment_filename(NULL)
 366         ,psz_title(NULL)
 367         ,psz_date_utc(NULL)
 368         ,meta(NULL)
 369         ,title(NULL)
 370             ,i_current_edition(0)
 371     {}
 372
 373     vlc_stream_io_callback  *in;
 374     EbmlStream              *es;
 375     EbmlParser              *ep;
 376
 377     /* time scale */
 378     uint64_t                i_timescale;
 379
 380     /* duration of the segment */
 381     float                   f_duration;
 382
 383     /* all tracks */
 384     int                     i_track;
 385     mkv_track_t             *track;
 386
 387     /* from seekhead */
 388     int64_t                 i_cues_position;
 389     int64_t                 i_chapters_position;
 390     int64_t                 i_tags_position;
 391
 392     /* current data */
 393     KaxSegment              *segment;
 394     KaxCluster              *cluster;
 395     KaxSegmentUID           segment_uid;
 396
 397     mtime_t                 i_pts;
 398     mtime_t                 i_start_pts;
 399
 400     vlc_bool_t              b_cues;
 401     int                     i_index;
 402     int                     i_index_max;
 403     mkv_index_t             *index;
 404
 405     /* info */
 406     char                    *psz_muxing_application;
 407     char                    *psz_writing_application;
 408     char                    *psz_segment_filename;
 409     char                    *psz_title;
 410     char                    *psz_date_utc;
 411
 412     vlc_meta_t              *meta;
 413
 414     input_title_t           *title;
 415
 416     std::vector<KaxSegmentFamily> families;
 417     std::vector<KaxSegment*>      family_members;
 418
 419         std::vector<chapter_edition_t> editions;
 420         int                            i_current_edition;
 421 };
 422
 423 #define MKVD_TIMECODESCALE 1000000
 424
 425 #define MKV_IS_ID( el, C ) ( EbmlId( (*el) ) == C::ClassInfos.GlobalId )
 426
 427 static void IndexAppendCluster  ( demux_t *p_demux, KaxCluster *cluster );
 428 static char *UTF8ToStr          ( const UTFstring &u );
 429 static void LoadCues            ( demux_t * );
 430 static void InformationCreate  ( demux_t * );
 431
 432 static void ParseInfo( demux_t *, EbmlElement *info );
 433 static void ParseTracks( demux_t *, EbmlElement *tracks );
 434 static void ParseSeekHead( demux_t *, EbmlElement *seekhead );
 435 static void ParseChapters( demux_t *, EbmlElement *chapters );
 436
 437 /*****************************************************************************
 438  * Open: initializes matroska demux structures
 439  *****************************************************************************/
 440 static int Open( vlc_object_t * p_this )
 441 {
 442     demux_t     *p_demux = (demux_t*)p_this;
 443     demux_sys_t *p_sys;
 444     uint8_t     *p_peek;
 445     std::string  s_path, s_filename;
 446     int          i_upper_lvl;
 447     size_t       i;
 448
 449     int          i_track;
 450
 451     EbmlElement *el = NULL, *el1 = NULL;
 452
 453     /* peek the begining */
 454     if( stream_Peek( p_demux->s, &p_peek, 4 ) < 4 )
 455     {
 456         msg_Warn( p_demux, "cannot peek" );
 457         return VLC_EGENERIC;
 458     }
 459
 460     /* is a valid file */
 461     if( p_peek[0] != 0x1a || p_peek[1] != 0x45 ||
 462         p_peek[2] != 0xdf || p_peek[3] != 0xa3 )
 463     {
 464         msg_Warn( p_demux, "matroska module discarded "
 465                            "(invalid header 0x%.2x%.2x%.2x%.2x)",
 466                            p_peek[0], p_peek[1], p_peek[2], p_peek[3] );
 467         return VLC_EGENERIC;
 468     }
 469
 470     /* Set the demux function */
 471     p_demux->pf_demux   = Demux;
 472     p_demux->pf_control = Control;
 473     p_demux->p_sys      = p_sys = new demux_sys_t;
 474
 475     p_sys->in = new vlc_stream_io_callback( p_demux->s );
 476     p_sys->es = new EbmlStream( *p_sys->in );
 477     p_sys->f_duration   = -1;
 478     p_sys->i_timescale     = MKVD_TIMECODESCALE;
 479     p_sys->i_track      = 0;
 480     p_sys->track        = (mkv_track_t*)malloc( sizeof( mkv_track_t ) );
 481     p_sys->i_pts   = 0;
 482     p_sys->i_cues_position = -1;
 483     p_sys->i_chapters_position = -1;
 484     p_sys->i_tags_position = -1;
 485
 486     p_sys->b_cues       = VLC_FALSE;
 487     p_sys->i_index      = 0;
 488     p_sys->i_index_max  = 1024;
 489     p_sys->index        = (mkv_index_t*)malloc( sizeof( mkv_index_t ) *
 490                                                 p_sys->i_index_max );
 491
 492     p_sys->psz_muxing_application = NULL;
 493     p_sys->psz_writing_application = NULL;
 494     p_sys->psz_segment_filename = NULL;
 495     p_sys->psz_title = NULL;
 496     p_sys->psz_date_utc = NULL;;
 497     p_sys->meta = NULL;
 498     p_sys->title = NULL;
 499
 500     if( p_sys->es == NULL )
 501     {
 502         msg_Err( p_demux, "failed to create EbmlStream" );
 503         delete p_sys->in;
 504         delete p_sys;
 505         return VLC_EGENERIC;
 506     }
 507     /* Find the EbmlHead element */
 508     el = p_sys->es->FindNextID(EbmlHead::ClassInfos, 0xFFFFFFFFL);
 509     if( el == NULL )
 510     {
 511         msg_Err( p_demux, "cannot find EbmlHead" );
 512         goto error;
 513     }
 514     msg_Dbg( p_demux, "EbmlHead" );
 515     /* skip it */
 516     el->SkipData( *p_sys->es, el->Generic().Context );
 517     delete el;
 518
 519     /* Find a segment */
 520     el = p_sys->es->FindNextID( KaxSegment::ClassInfos, 0xFFFFFFFFL);
 521     if( el == NULL )
 522     {
 523         msg_Err( p_demux, "cannot find KaxSegment" );
 524         goto error;
 525     }
 526     MkvTree( p_demux, 0, "Segment" );
 527     p_sys->segment = (KaxSegment*)el;
 528     p_sys->cluster = NULL;
 529
 530     p_sys->ep = new EbmlParser( p_sys->es, el );
 531
 532     while( ( el1 = p_sys->ep->Get() ) != NULL )
 533     {
 534         if( MKV_IS_ID( el1, KaxInfo ) )
 535         {
 536             ParseInfo( p_demux, el1 );
 537         }
 538         else if( MKV_IS_ID( el1, KaxTracks ) )
 539         {
 540             ParseTracks( p_demux, el1 );
 541         }
 542         else if( MKV_IS_ID( el1, KaxSeekHead ) )
 543         {
 544             ParseSeekHead( p_demux, el1 );
 545         }
 546         else if( MKV_IS_ID( el1, KaxCues ) )
 547         {
 548             msg_Dbg( p_demux, "|   + Cues" );
 549         }
 550         else if( MKV_IS_ID( el1, KaxCluster ) )
 551         {
 552             msg_Dbg( p_demux, "|   + Cluster" );
 553
 554             p_sys->cluster = (KaxCluster*)el1;
 555
 556             p_sys->ep->Down();
 557             /* stop parsing the stream */
 558             break;
 559         }
 560         else if( MKV_IS_ID( el1, KaxAttachments ) )
 561         {
 562             msg_Dbg( p_demux, "|   + Attachments FIXME TODO (but probably never supported)" );
 563         }
 564         else if( MKV_IS_ID( el1, KaxChapters ) )
 565         {
 566             msg_Dbg( p_demux, "|   + Chapters" );
 567             ParseChapters( p_demux, el1 );
 568         }
 569         else if( MKV_IS_ID( el1, KaxTag ) )
 570         {
 571             msg_Dbg( p_demux, "|   + Tags FIXME TODO" );
 572         }
 573         else
 574         {
 575             msg_Dbg( p_demux, "|   + Unknown (%s)", typeid(*el1).name() );
 576         }
 577     }
 578
 579     /* get the files from the same dir from the same family (based on p_demux->psz_path) */
 580     /* _todo_ handle multi-segment files */
 581     if (p_demux->psz_path[0] != '\0' && (!strcmp(p_demux->psz_access, "") || !strcmp(p_demux->psz_access, "")))
 582     {
 583         // assume it's a regular file
 584         // get the directory path
 585         s_path = p_demux->psz_path;
 586         if (s_path.at(s_path.length() - 1) == DIRECTORY_SEPARATOR)
 587         {
 588             s_path = s_path.substr(0,s_path.length()-1);
 589         }
 590         else
 591         {
 592             if (s_path.find_last_of(DIRECTORY_SEPARATOR) > 0)
 593             {
 594                 s_path = s_path.substr(0,s_path.find_last_of(DIRECTORY_SEPARATOR));
 595             }
 596         }
 597
 598         struct dirent *p_file_item;
 599         DIR *p_src_dir = opendir(s_path.c_str());
 600
 601         if (p_src_dir != NULL)
 602         {
 603             while ((p_file_item = readdir(p_src_dir)))
 604             {
 605                 if (strlen(p_file_item->d_name) > 4)
 606                 {
 607                     s_filename = s_path + DIRECTORY_SEPARATOR + p_file_item->d_name;
 608
 609                     if (!s_filename.compare(p_demux->psz_path))
 610                         continue;
 611
 612 #if defined(__GNUC__) && (__GNUC__ < 3)
 613                     if (!s_filename.compare("mkv", s_filename.length() - 3, 3) ||
 614                         !s_filename.compare("mka", s_filename.length() - 3, 3))
 615 #else
 616                     if (!s_filename.compare(s_filename.length() - 3, 3, "mkv") ||
 617                         !s_filename.compare(s_filename.length() - 3, 3, "mka"))
 618 #endif
 619                     {
 620                         // test wether this file belongs to the our family
 621                         bool b_keep_file_opened = false;
 622                         StdIOCallback *p_file_io = new StdIOCallback(s_filename.c_str(), MODE_READ);
 623                         EbmlStream *p_stream = new EbmlStream(*p_file_io);
 624                         EbmlElement *p_l0, *p_l1, *p_l2;
 625
 626                         // verify the EBML Header
 627                         p_l0 = p_stream->FindNextID(EbmlHead::ClassInfos, 0xFFFFFFFFL);
 628                         if (p_l0 == NULL)
 629                         {
 630                             delete p_stream;
 631                             delete p_file_io;
 632                             continue;
 633                         }
 634
 635                         p_l0->SkipData(*p_stream, EbmlHead_Context);
 636                         delete p_l0;
 637
 638                         // find all segments in this file
 639                         p_l0 = p_stream->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFL);
 640                         if (p_l0 == NULL)
 641                         {
 642                             delete p_stream;
 643                             delete p_file_io;
 644                             continue;
 645                         }
 646
 647                         i_upper_lvl = 0;
 648
 649                         while (p_l0 != 0)
 650                         {
 651                             if (EbmlId(*p_l0) == KaxSegment::ClassInfos.GlobalId)
 652                             {
 653                                 EbmlParser  *ep;
 654                                 KaxSegmentUID *p_uid = NULL;
 655
 656                                 ep = new EbmlParser(p_stream, p_l0);
 657                                 bool b_this_segment_matches = false;
 658                                 while ((p_l1 = ep->Get()))
 659                                 {
 660                                     if (MKV_IS_ID(p_l1, KaxInfo))
 661                                     {
 662                                         // find the families of this segment
 663                                         KaxInfo *p_info = static_cast<KaxInfo*>(p_l1);
 664
 665                                         p_info->Read(*p_stream, KaxInfo::ClassInfos.Context, i_upper_lvl, p_l2, true);
 666                                         for( i = 0; i < p_info->ListSize() && !b_this_segment_matches; i++ )
 667                                         {
 668                                             EbmlElement *l = (*p_info)[i];
 669
 670                                             if( MKV_IS_ID( l, KaxSegmentUID ) )
 671                                             {
 672                                                 p_uid = static_cast<KaxSegmentUID*>(l);
 673                                                 if (p_sys->segment_uid == *p_uid)
 674                                                     break;
 675                                             }
 676                                             else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 677                                             {
 678                                                 KaxSegmentFamily *p_fam = static_cast<KaxSegmentFamily*>(l);
 679                                                 std::vector<KaxSegmentFamily>::iterator iter;
 680                                                 for( iter = p_sys->families.begin();
 681                                                      iter != p_sys->families.end();
 682                                                      iter++ )
 683                                                 {
 684                                                     if( *iter == *p_fam )
 685                                                     {
 686                                                         b_this_segment_matches = true;
 687                                                         break;
 688                                                     }
 689                                                 }
 690                                             }
 691                                         }
 692                                         break;
 693                                     }
 694                                 }
 695
 696                                 if (b_this_segment_matches)
 697                                 {
 698                                     b_keep_file_opened = true;
 699                                 }
 700                             }
 701
 702                             p_l0->SkipData(*p_stream, EbmlHead_Context);
 703                             delete p_l0;
 704                             p_l0 = p_stream->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFL);
 705                         }
 706
 707                         if (!b_keep_file_opened)
 708                         {
 709                             delete p_stream;
 710                             delete p_file_io;
 711                         }
 712                     }
 713                 }
 714             }
 715             closedir( p_src_dir );
 716         }
 717     }
 718
 719
 720     if( p_sys->cluster == NULL )
 721     {
 722         msg_Err( p_demux, "cannot find any cluster, damaged file ?" );
 723         goto error;
 724     }
 725
 726     /* *** Load the cue if found *** */
 727     if( p_sys->i_cues_position >= 0 )
 728     {
 729         vlc_bool_t b_seekable;
 730
 731         stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b_seekable );
 732         if( b_seekable )
 733         {
 734             LoadCues( p_demux );
 735         }
 736     }
 737
 738     if( !p_sys->b_cues || p_sys->i_index <= 0 )
 739     {
 740         msg_Warn( p_demux, "no cues/empty cues found->seek won't be precise" );
 741
 742         IndexAppendCluster( p_demux, p_sys->cluster );
 743
 744         p_sys->b_cues = VLC_FALSE;
 745     }
 746
 747     /* add all es */
 748     msg_Dbg( p_demux, "found %d es", p_sys->i_track );
 749     for( i_track = 0; i_track < p_sys->i_track; i_track++ )
 750     {
 751 #define tk  p_sys->track[i_track]
 752         if( tk.fmt.i_cat == UNKNOWN_ES )
 753         {
 754             msg_Warn( p_demux, "invalid track[%d, n=%d]", i_track, tk.i_number );
 755             tk.p_es = NULL;
 756             continue;
 757         }
 758
 759         if( !strcmp( tk.psz_codec, "V_MS/VFW/FOURCC" ) )
 760         {
 761             if( tk.i_extra_data < (int)sizeof( BITMAPINFOHEADER ) )
 762             {
 763                 msg_Err( p_demux, "missing/invalid BITMAPINFOHEADER" );
 764                 tk.fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
 765             }
 766             else
 767             {
 768                 BITMAPINFOHEADER *p_bih = (BITMAPINFOHEADER*)tk.p_extra_data;
 769
 770                 tk.fmt.video.i_width = GetDWLE( &p_bih->biWidth );
 771                 tk.fmt.video.i_height= GetDWLE( &p_bih->biHeight );
 772                 tk.fmt.i_codec       = GetFOURCC( &p_bih->biCompression );
 773
 774                 tk.fmt.i_extra       = GetDWLE( &p_bih->biSize ) - sizeof( BITMAPINFOHEADER );
 775                 if( tk.fmt.i_extra > 0 )
 776                 {
 777                     tk.fmt.p_extra = malloc( tk.fmt.i_extra );
 778                     memcpy( tk.fmt.p_extra, &p_bih[1], tk.fmt.i_extra );
 779                 }
 780             }
 781         }
 782         else if( !strcmp( tk.psz_codec, "V_MPEG1" ) ||
 783                  !strcmp( tk.psz_codec, "V_MPEG2" ) )
 784         {
 785             tk.fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 786         }
 787         else if( !strncmp( tk.psz_codec, "V_MPEG4", 7 ) )
 788         {
 789             if( !strcmp( tk.psz_codec, "V_MPEG4/MS/V3" ) )
 790             {
 791                 tk.fmt.i_codec = VLC_FOURCC( 'D', 'I', 'V', '3' );
 792             }
 793             else if( !strcmp( tk.psz_codec, "V_MPEG4/ISO/AVC" ) )
 794             {
 795                 tk.fmt.i_codec = VLC_FOURCC( 'a', 'v', 'c', '1' );
 796                 tk.fmt.b_packetized = VLC_FALSE;
 797                 tk.fmt.i_extra = tk.i_extra_data;
 798                 tk.fmt.p_extra = malloc( tk.i_extra_data );
 799                 memcpy( tk.fmt.p_extra,tk.p_extra_data, tk.i_extra_data );
 800             }
 801             else
 802             {
 803                 tk.fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 804             }
 805         }
 806         else if( !strcmp( tk.psz_codec, "V_QUICKTIME" ) )
 807         {
 808             MP4_Box_t *p_box = (MP4_Box_t*)malloc( sizeof( MP4_Box_t ) );
 809             stream_t *p_mp4_stream = stream_MemoryNew( VLC_OBJECT(p_demux),
 810                                                        tk.p_extra_data,
 811                                                        tk.i_extra_data );
 812             MP4_ReadBoxCommon( p_mp4_stream, p_box );
 813             MP4_ReadBox_sample_vide( p_mp4_stream, p_box );
 814             tk.fmt.i_codec = p_box->i_type;
 815             tk.fmt.video.i_width = p_box->data.p_sample_vide->i_width;
 816             tk.fmt.video.i_height = p_box->data.p_sample_vide->i_height;
 817             tk.fmt.i_extra = p_box->data.p_sample_vide->i_qt_image_description;
 818             tk.fmt.p_extra = malloc( tk.fmt.i_extra );
 819             memcpy( tk.fmt.p_extra, p_box->data.p_sample_vide->p_qt_image_description, tk.fmt.i_extra );
 820             MP4_FreeBox_sample_vide( p_box );
 821             stream_MemoryDelete( p_mp4_stream, VLC_TRUE );
 822         }
 823         else if( !strcmp( tk.psz_codec, "A_MS/ACM" ) )
 824         {
 825             if( tk.i_extra_data < (int)sizeof( WAVEFORMATEX ) )
 826             {
 827                 msg_Err( p_demux, "missing/invalid WAVEFORMATEX" );
 828                 tk.fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
 829             }
 830             else
 831             {
 832                 WAVEFORMATEX *p_wf = (WAVEFORMATEX*)tk.p_extra_data;
 833
 834                 wf_tag_to_fourcc( GetWLE( &p_wf->wFormatTag ), &tk.fmt.i_codec, NULL );
 835
 836                 tk.fmt.audio.i_channels   = GetWLE( &p_wf->nChannels );
 837                 tk.fmt.audio.i_rate = GetDWLE( &p_wf->nSamplesPerSec );
 838                 tk.fmt.i_bitrate    = GetDWLE( &p_wf->nAvgBytesPerSec ) * 8;
 839                 tk.fmt.audio.i_blockalign = GetWLE( &p_wf->nBlockAlign );;
 840                 tk.fmt.audio.i_bitspersample = GetWLE( &p_wf->wBitsPerSample );
 841
 842                 tk.fmt.i_extra            = GetWLE( &p_wf->cbSize );
 843                 if( tk.fmt.i_extra > 0 )
 844                 {
 845                     tk.fmt.p_extra = malloc( tk.fmt.i_extra );
 846                     memcpy( tk.fmt.p_extra, &p_wf[1], tk.fmt.i_extra );
 847                 }
 848             }
 849         }
 850         else if( !strcmp( tk.psz_codec, "A_MPEG/L3" ) ||
 851                  !strcmp( tk.psz_codec, "A_MPEG/L2" ) ||
 852                  !strcmp( tk.psz_codec, "A_MPEG/L1" ) )
 853         {
 854             tk.fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 855         }
 856         else if( !strcmp( tk.psz_codec, "A_AC3" ) )
 857         {
 858             tk.fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 859         }
 860         else if( !strcmp( tk.psz_codec, "A_DTS" ) )
 861         {
 862             tk.fmt.i_codec = VLC_FOURCC( 'd', 't', 's', ' ' );
 863         }
 864         else if( !strcmp( tk.psz_codec, "A_FLAC" ) )
 865         {
 866             tk.fmt.i_codec = VLC_FOURCC( 'f', 'l', 'a', 'c' );
 867             tk.fmt.i_extra = tk.i_extra_data;
 868             tk.fmt.p_extra = malloc( tk.i_extra_data );
 869             memcpy( tk.fmt.p_extra,tk.p_extra_data, tk.i_extra_data );
 870         }
 871         else if( !strcmp( tk.psz_codec, "A_VORBIS" ) )
 872         {
 873             int i, i_offset = 1, i_size[3], i_extra;
 874             uint8_t *p_extra;
 875
 876             tk.fmt.i_codec = VLC_FOURCC( 'v', 'o', 'r', 'b' );
 877
 878             /* Split the 3 headers */
 879             if( tk.p_extra_data[0] != 0x02 )
 880                 msg_Err( p_demux, "invalid vorbis header" );
 881
 882             for( i = 0; i < 2; i++ )
 883             {
 884                 i_size[i] = 0;
 885                 while( i_offset < tk.i_extra_data )
 886                 {
 887                     i_size[i] += tk.p_extra_data[i_offset];
 888                     if( tk.p_extra_data[i_offset++] != 0xff ) break;
 889                 }
 890             }
 891
 892             i_size[0] = __MIN(i_size[0], tk.i_extra_data - i_offset);
 893             i_size[1] = __MIN(i_size[1], tk.i_extra_data -i_offset -i_size[0]);
 894             i_size[2] = tk.i_extra_data - i_offset - i_size[0] - i_size[1];
 895
 896             tk.fmt.i_extra = 3 * 2 + i_size[0] + i_size[1] + i_size[2];
 897             tk.fmt.p_extra = malloc( tk.fmt.i_extra );
 898             p_extra = (uint8_t *)tk.fmt.p_extra; i_extra = 0;
 899             for( i = 0; i < 3; i++ )
 900             {
 901                 *(p_extra++) = i_size[i] >> 8;
 902                 *(p_extra++) = i_size[i] & 0xFF;
 903                 memcpy( p_extra, tk.p_extra_data + i_offset + i_extra,
 904                         i_size[i] );
 905                 p_extra += i_size[i];
 906                 i_extra += i_size[i];
 907             }
 908         }
 909         else if( !strncmp( tk.psz_codec, "A_AAC/MPEG2/", strlen( "A_AAC/MPEG2/" ) ) ||
 910                  !strncmp( tk.psz_codec, "A_AAC/MPEG4/", strlen( "A_AAC/MPEG4/" ) ) )
 911         {
 912             int i_profile, i_srate;
 913             static unsigned int i_sample_rates[] =
 914             {
 915                     96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
 916                         16000, 12000, 11025, 8000,  7350,  0,     0,     0
 917             };
 918
 919             tk.fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 920             /* create data for faad (MP4DecSpecificDescrTag)*/
 921
 922             if( !strcmp( &tk.psz_codec[12], "MAIN" ) )
 923             {
 924                 i_profile = 0;
 925             }
 926             else if( !strcmp( &tk.psz_codec[12], "LC" ) )
 927             {
 928                 i_profile = 1;
 929             }
 930             else if( !strcmp( &tk.psz_codec[12], "SSR" ) )
 931             {
 932                 i_profile = 2;
 933             }
 934             else
 935             {
 936                 i_profile = 3;
 937             }
 938
 939             for( i_srate = 0; i_srate < 13; i_srate++ )
 940             {
 941                 if( i_sample_rates[i_srate] == tk.fmt.audio.i_rate )
 942                 {
 943                     break;
 944                 }
 945             }
 946             msg_Dbg( p_demux, "profile=%d srate=%d", i_profile, i_srate );
 947
 948             tk.fmt.i_extra = 2;
 949             tk.fmt.p_extra = malloc( tk.fmt.i_extra );
 950             ((uint8_t*)tk.fmt.p_extra)[0] = ((i_profile + 1) << 3) | ((i_srate&0xe) >> 1);
 951             ((uint8_t*)tk.fmt.p_extra)[1] = ((i_srate & 0x1) << 7) | (tk.fmt.audio.i_channels << 3);
 952         }
 953         else if( !strcmp( tk.psz_codec, "A_PCM/INT/BIG" ) ||
 954                  !strcmp( tk.psz_codec, "A_PCM/INT/LIT" ) ||
 955                  !strcmp( tk.psz_codec, "A_PCM/FLOAT/IEEE" ) )
 956         {
 957             if( !strcmp( tk.psz_codec, "A_PCM/INT/BIG" ) )
 958             {
 959                 tk.fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 960             }
 961             else
 962             {
 963                 tk.fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 964             }
 965             tk.fmt.audio.i_blockalign = ( tk.fmt.audio.i_bitspersample + 7 ) / 8 * tk.fmt.audio.i_channels;
 966         }
 967         else if( !strcmp( tk.psz_codec, "A_TTA1" ) )
 968         {
 969             /* FIXME: support this codec */
 970             msg_Err( p_demux, "TTA not supported yet[%d, n=%d]", i_track, tk.i_number );
 971             tk.fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
 972         }
 973         else if( !strcmp( tk.psz_codec, "A_WAVPACK4" ) )
 974         {
 975             /* FIXME: support this codec */
 976             msg_Err( p_demux, "Wavpack not supported yet[%d, n=%d]", i_track, tk.i_number );
 977             tk.fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
 978         }
 979         else if( !strcmp( tk.psz_codec, "S_TEXT/UTF8" ) )
 980         {
 981             tk.fmt.i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
 982             tk.fmt.subs.psz_encoding = strdup( "UTF-8" );
 983         }
 984         else if( !strcmp( tk.psz_codec, "S_TEXT/SSA" ) ||
 985                  !strcmp( tk.psz_codec, "S_TEXT/ASS" ) ||
 986                  !strcmp( tk.psz_codec, "S_SSA" ) ||
 987                  !strcmp( tk.psz_codec, "S_ASS" ))
 988         {
 989             tk.fmt.i_codec = VLC_FOURCC( 's', 's', 'a', ' ' );
 990             tk.fmt.subs.psz_encoding = strdup( "UTF-8" );
 991         }
 992         else if( !strcmp( tk.psz_codec, "S_VOBSUB" ) )
 993         {
 994             tk.fmt.i_codec = VLC_FOURCC( 's','p','u',' ' );
 995             if( tk.i_extra_data )
 996             {
 997                 char *p_start;
 998                 char *p_buf = (char *)malloc( tk.i_extra_data + 1);
 999                 memcpy( p_buf, tk.p_extra_data , tk.i_extra_data );
1000                 p_buf[tk.i_extra_data] = '\0';
1001
1002                 p_start = strstr( p_buf, "size:" );
1003                 if( sscanf( p_start, "size: %dx%d",
1004                         &tk.fmt.subs.spu.i_original_frame_width, &tk.fmt.subs.spu.i_original_frame_height ) == 2 )
1005                 {
1006                     msg_Dbg( p_demux, "original frame size vobsubs: %dx%d", tk.fmt.subs.spu.i_original_frame_width, tk.fmt.subs.spu.i_original_frame_height );
1007                 }
1008                 else
1009                 {
1010                     msg_Warn( p_demux, "reading original frame size for vobsub failed" );
1011                 }
1012                 free( p_buf );
1013             }
1014         }
1015         else if( !strcmp( tk.psz_codec, "B_VOBBTN" ) )
1016         {
1017             /* FIXME: support this codec */
1018             msg_Err( p_demux, "Vob Buttons not supported yet[%d, n=%d]", i_track, tk.i_number );
1019             tk.fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1020         }
1021         else
1022         {
1023             msg_Err( p_demux, "unknow codec id=`%s'", tk.psz_codec );
1024             tk.fmt.i_codec = VLC_FOURCC( 'u', 'n', 'd', 'f' );
1025         }
1026         if( tk.b_default )
1027         {
1028             tk.fmt.i_priority = 1000;
1029         }
1030
1031         tk.p_es = es_out_Add( p_demux->out, &tk.fmt );
1032 #undef tk
1033     }
1034
1035     /* add information */
1036     InformationCreate( p_demux );
1037
1038     return VLC_SUCCESS;
1039
1040 error:
1041     delete p_sys->es;
1042     delete p_sys->in;
1043     delete p_sys;
1044     return VLC_EGENERIC;
1045 }
1046
1047 /*****************************************************************************
1048  * Close: frees unused data
1049  *****************************************************************************/
1050 static void Close( vlc_object_t *p_this )
1051 {
1052     demux_t     *p_demux = (demux_t*)p_this;
1053     demux_sys_t *p_sys   = p_demux->p_sys;
1054     int         i_track;
1055
1056     for( i_track = 0; i_track < p_sys->i_track; i_track++ )
1057     {
1058 #define tk  p_sys->track[i_track]
1059         if( tk.fmt.psz_description )
1060         {
1061             free( tk.fmt.psz_description );
1062         }
1063         if( tk.psz_codec )
1064         {
1065             free( tk.psz_codec );
1066         }
1067         if( tk.fmt.psz_language )
1068         {
1069             free( tk.fmt.psz_language );
1070         }
1071 #undef tk
1072     }
1073     free( p_sys->track );
1074
1075     if( p_sys->psz_writing_application  )
1076     {
1077         free( p_sys->psz_writing_application );
1078     }
1079     if( p_sys->psz_muxing_application  )
1080     {
1081         free( p_sys->psz_muxing_application );
1082     }
1083
1084     delete p_sys->segment;
1085
1086     delete p_sys->ep;
1087     delete p_sys->es;
1088     delete p_sys->in;
1089     delete p_sys;
1090 }
1091
1092 /*****************************************************************************
1093  * Control:
1094  *****************************************************************************/
1095 static int Control( demux_t *p_demux, int i_query, va_list args )
1096 {
1097     demux_sys_t *p_sys = p_demux->p_sys;
1098     int64_t     *pi64;
1099     double      *pf, f;
1100     int         i_skp;
1101
1102     vlc_meta_t **pp_meta;
1103
1104     switch( i_query )
1105     {
1106         case DEMUX_GET_META:
1107             pp_meta = (vlc_meta_t**)va_arg( args, vlc_meta_t** );
1108             *pp_meta = vlc_meta_Duplicate( p_sys->meta );
1109             return VLC_SUCCESS;
1110
1111         case DEMUX_GET_LENGTH:
1112             pi64 = (int64_t*)va_arg( args, int64_t * );
1113             if( p_sys->f_duration > 0.0 )
1114             {
1115                 *pi64 = (int64_t)(p_sys->f_duration * 1000);
1116                 return VLC_SUCCESS;
1117             }
1118             return VLC_EGENERIC;
1119
1120         case DEMUX_GET_POSITION:
1121             pf = (double*)va_arg( args, double * );
1122 /*            if (p_sys->i_pts < p_sys->i_start_pts)
1123                 *pf = (double)p_sys->i_start_pts / (1000.0 * p_sys->f_duration);
1124             else*/
1125                 *pf = (double)p_sys->i_pts / (1000.0 * p_sys->f_duration);
1126             return VLC_SUCCESS;
1127
1128         case DEMUX_SET_POSITION:
1129             f = (double)va_arg( args, double );
1130             Seek( p_demux, -1, f );
1131             return VLC_SUCCESS;
1132
1133         case DEMUX_GET_TIME:
1134             pi64 = (int64_t*)va_arg( args, int64_t * );
1135 /*            if (p_sys->i_pts < p_sys->i_start_pts)
1136                 *pi64 = p_sys->i_start_pts;
1137             else*/
1138                 *pi64 = p_sys->i_pts;
1139             return VLC_SUCCESS;
1140
1141         case DEMUX_GET_TITLE_INFO:
1142             if( p_sys->title && p_sys->title->i_seekpoint > 0 )
1143             {
1144                 input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
1145                 int *pi_int    = (int*)va_arg( args, int* );
1146
1147                 *pi_int = 1;
1148                 *ppp_title = (input_title_t**)malloc( sizeof( input_title_t**) );
1149
1150                 (*ppp_title)[0] = vlc_input_title_Duplicate( p_sys->title );
1151
1152                 return VLC_SUCCESS;
1153             }
1154             return VLC_EGENERIC;
1155
1156         case DEMUX_SET_TITLE:
1157             if( p_sys->title && p_sys->title->i_seekpoint > 0 )
1158             {
1159                 return VLC_SUCCESS;
1160             }
1161             return VLC_EGENERIC;
1162
1163         case DEMUX_SET_SEEKPOINT:
1164             /* FIXME do a better implementation */
1165             i_skp = (int)va_arg( args, int );
1166
1167             if( p_sys->title && i_skp < p_sys->title->i_seekpoint)
1168             {
1169                 Seek( p_demux, (int64_t)p_sys->title->seekpoint[i_skp]->i_time_offset, -1);
1170                 p_demux->info.i_seekpoint |= INPUT_UPDATE_SEEKPOINT;
1171                 p_demux->info.i_seekpoint = i_skp;
1172 /*                              p_sys->i_current_chapter = i_skp;*/
1173                 return VLC_SUCCESS;
1174             }
1175             return VLC_EGENERIC;
1176
1177
1178         case DEMUX_SET_TIME:
1179         case DEMUX_GET_FPS:
1180         default:
1181             return VLC_EGENERIC;
1182     }
1183 }
1184
1185 static int BlockGet( demux_t *p_demux, KaxBlock **pp_block, int64_t *pi_ref1, int64_t *pi_ref2, int64_t *pi_duration )
1186 {
1187     demux_sys_t *p_sys = p_demux->p_sys;
1188
1189     *pp_block = NULL;
1190     *pi_ref1  = -1;
1191     *pi_ref2  = -1;
1192
1193     for( ;; )
1194     {
1195         EbmlElement *el;
1196         int         i_level;
1197
1198         if( p_demux->b_die )
1199         {
1200             return VLC_EGENERIC;
1201         }
1202
1203         el = p_sys->ep->Get();
1204         i_level = p_sys->ep->GetLevel();
1205
1206         if( el == NULL && *pp_block != NULL )
1207         {
1208             /* update the index */
1209 #define idx p_sys->index[p_sys->i_index - 1]
1210             if( p_sys->i_index > 0 && idx.i_time == -1 )
1211             {
1212                 idx.i_time        = (*pp_block)->GlobalTimecode() / (mtime_t)1000;
1213                 idx.b_key         = *pi_ref1 == -1 ? VLC_TRUE : VLC_FALSE;
1214             }
1215 #undef idx
1216             return VLC_SUCCESS;
1217         }
1218
1219         if( el == NULL )
1220         {
1221             if( p_sys->ep->GetLevel() > 1 )
1222             {
1223                 p_sys->ep->Up();
1224                 continue;
1225             }
1226             msg_Warn( p_demux, "EOF" );
1227             return VLC_EGENERIC;
1228         }
1229
1230         /* do parsing */
1231         if( i_level == 1 )
1232         {
1233             if( MKV_IS_ID( el, KaxCluster ) )
1234             {
1235                 p_sys->cluster = (KaxCluster*)el;
1236
1237                 /* add it to the index */
1238                 if( p_sys->i_index == 0 ||
1239                     ( p_sys->i_index > 0 && p_sys->index[p_sys->i_index - 1].i_position < (int64_t)p_sys->cluster->GetElementPosition() ) )
1240                 {
1241                     IndexAppendCluster( p_demux, p_sys->cluster );
1242                 }
1243
1244                 p_sys->ep->Down();
1245             }
1246             else if( MKV_IS_ID( el, KaxCues ) )
1247             {
1248                 msg_Warn( p_demux, "find KaxCues FIXME" );
1249                 return VLC_EGENERIC;
1250             }
1251             else
1252             {
1253                 msg_Dbg( p_demux, "unknown (%s)", typeid( el ).name() );
1254             }
1255         }
1256         else if( i_level == 2 )
1257         {
1258             if( MKV_IS_ID( el, KaxClusterTimecode ) )
1259             {
1260                 KaxClusterTimecode &ctc = *(KaxClusterTimecode*)el;
1261
1262                 ctc.ReadData( p_sys->es->I_O(), SCOPE_ALL_DATA );
1263                 p_sys->cluster->InitTimecode( uint64( ctc ), p_sys->i_timescale );
1264             }
1265             else if( MKV_IS_ID( el, KaxBlockGroup ) )
1266             {
1267                 p_sys->ep->Down();
1268             }
1269         }
1270         else if( i_level == 3 )
1271         {
1272             if( MKV_IS_ID( el, KaxBlock ) )
1273             {
1274                 *pp_block = (KaxBlock*)el;
1275
1276                 (*pp_block)->ReadData( p_sys->es->I_O() );
1277                 (*pp_block)->SetParent( *p_sys->cluster );
1278
1279                 p_sys->ep->Keep();
1280             }
1281             else if( MKV_IS_ID( el, KaxBlockDuration ) )
1282             {
1283                 KaxBlockDuration &dur = *(KaxBlockDuration*)el;
1284
1285                 dur.ReadData( p_sys->es->I_O() );
1286                 *pi_duration = uint64( dur );
1287             }
1288             else if( MKV_IS_ID( el, KaxReferenceBlock ) )
1289             {
1290                 KaxReferenceBlock &ref = *(KaxReferenceBlock*)el;
1291
1292                 ref.ReadData( p_sys->es->I_O() );
1293                 if( *pi_ref1 == -1 )
1294                 {
1295                     *pi_ref1 = int64( ref );
1296                 }
1297                 else
1298                 {
1299                     *pi_ref2 = int64( ref );
1300                 }
1301             }
1302         }
1303         else
1304         {
1305             msg_Err( p_demux, "invalid level = %d", i_level );
1306             return VLC_EGENERIC;
1307         }
1308     }
1309 }
1310
1311 static block_t *MemToBlock( demux_t *p_demux, uint8_t *p_mem, int i_mem)
1312 {
1313     block_t *p_block;
1314     if( !(p_block = block_New( p_demux, i_mem ) ) ) return NULL;
1315     memcpy( p_block->p_buffer, p_mem, i_mem );
1316     //p_block->i_rate = p_input->stream.control.i_rate;
1317     return p_block;
1318 }
1319
1320 static void BlockDecode( demux_t *p_demux, KaxBlock *block, mtime_t i_pts,
1321                          mtime_t i_duration )
1322 {
1323     demux_sys_t *p_sys = p_demux->p_sys;
1324
1325     int             i_track;
1326     unsigned int    i;
1327     vlc_bool_t      b;
1328
1329 #define tk  p_sys->track[i_track]
1330     for( i_track = 0; i_track < p_sys->i_track; i_track++ )
1331     {
1332         if( tk.i_number == block->TrackNum() )
1333         {
1334             break;
1335         }
1336     }
1337
1338     if( i_track >= p_sys->i_track )
1339     {
1340         msg_Err( p_demux, "invalid track number=%d", block->TrackNum() );
1341         return;
1342     }
1343     if( tk.p_es == NULL )
1344     {
1345         msg_Err( p_demux, "unknown track number=%d", block->TrackNum() );
1346         return;
1347     }
1348     if( i_pts < p_sys->i_start_pts && tk.fmt.i_cat == AUDIO_ES )
1349     {
1350         return; /* discard audio packets that shouldn't be rendered */
1351     }
1352
1353     es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk.p_es, &b );
1354     if( !b )
1355     {
1356         tk.b_inited = VLC_FALSE;
1357         return;
1358     }
1359
1360     /* First send init data */
1361     if( !tk.b_inited && tk.i_data_init > 0 )
1362     {
1363         block_t *p_init;
1364
1365         msg_Dbg( p_demux, "sending header (%d bytes)", tk.i_data_init );
1366         p_init = MemToBlock( p_demux, tk.p_data_init, tk.i_data_init );
1367         if( p_init ) es_out_Send( p_demux->out, tk.p_es, p_init );
1368     }
1369     tk.b_inited = VLC_TRUE;
1370
1371
1372     for( i = 0; i < block->NumberFrames(); i++ )
1373     {
1374         block_t *p_block;
1375         DataBuffer &data = block->GetBuffer(i);
1376
1377         p_block = MemToBlock( p_demux, data.Buffer(), data.Size() );
1378
1379         if( p_block == NULL )
1380         {
1381             break;
1382         }
1383
1384 #if defined(HAVE_ZLIB_H)
1385         if( tk.i_compression_type )
1386         {
1387             p_block = block_zlib_decompress( VLC_OBJECT(p_demux), p_block );
1388         }
1389 #endif
1390
1391         if (p_sys->i_start_pts > i_pts)
1392         {
1393             p_block->i_dts = 0;
1394             p_block->i_pts = -1;
1395         }
1396         else
1397         if( tk.fmt.i_cat != VIDEO_ES )
1398         {
1399             p_block->i_dts = p_block->i_pts = i_pts;
1400         }
1401         else
1402         {
1403             p_block->i_dts = i_pts;
1404             p_block->i_pts = 0;
1405         }
1406
1407         if( tk.fmt.i_cat == SPU_ES && strcmp( tk.psz_codec, "S_VOBSUB" ) )
1408         {
1409             p_block->i_length = i_duration * 1000;
1410         }
1411         es_out_Send( p_demux->out, tk.p_es, p_block );
1412
1413         /* use time stamp only for first block */
1414         i_pts = 0;
1415     }
1416
1417 #undef tk
1418 }
1419
1420 static void UpdateCurrentChapter()
1421 {
1422         /* update current chapter/seekpoint */
1423 #ifdef TODO
1424         i_chapter
1425         if (p_sys->title->seekpoint[i_skp]->i_time_offset)
1426         {
1427                 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1428                 p_demux->info.i_seekpoint = i_chapter;
1429         }
1430 #endif
1431 }
1432
1433 static void Seek( demux_t *p_demux, mtime_t i_date, double f_percent)
1434 {
1435     demux_sys_t *p_sys = p_demux->p_sys;
1436
1437     KaxBlock    *block;
1438     int64_t     i_block_duration;
1439     int64_t     i_block_ref1;
1440     int64_t     i_block_ref2;
1441
1442     int         i_index = 0;
1443     int         i_track_skipping;
1444     int         i_track;
1445
1446     msg_Dbg( p_demux, "seek request to "I64Fd" (%f%%)", i_date, f_percent );
1447     if( i_date < 0 && f_percent < 0 )
1448     {
1449         msg_Warn( p_demux, "cannot seek nowhere !" );
1450         return;
1451     }
1452     if( f_percent > 1.0 )
1453     {
1454         msg_Warn( p_demux, "cannot seek so far !" );
1455         return;
1456     }
1457
1458     delete p_sys->ep;
1459     p_sys->ep = new EbmlParser( p_sys->es, p_sys->segment );
1460     p_sys->cluster = NULL;
1461
1462     /* seek without index or without date */
1463     if( f_percent >= 0 && (config_GetInt( p_demux, "mkv-seek-percent" ) || !p_sys->b_cues || i_date < 0 ))
1464     {
1465         if (p_sys->f_duration >= 0)
1466         {
1467             i_date = f_percent * p_sys->f_duration * 1000;
1468         }
1469         else
1470         {
1471             int64_t i_pos = f_percent * stream_Size( p_demux->s );
1472
1473             msg_Dbg( p_demux, "inacurate way of seeking" );
1474             for( i_index = 0; i_index < p_sys->i_index; i_index++ )
1475             {
1476                 if( p_sys->index[i_index].i_position >= i_pos)
1477                 {
1478                     break;
1479                 }
1480             }
1481             if( i_index == p_sys->i_index )
1482             {
1483                 i_index--;
1484             }
1485
1486             i_date = p_sys->index[i_index].i_time;
1487
1488 #if 0
1489             if( p_sys->index[i_index].i_position < i_pos )
1490             {
1491                 EbmlElement *el;
1492
1493                 msg_Warn( p_demux, "searching for cluster, could take some time" );
1494
1495                 /* search a cluster */
1496                 while( ( el = p_sys->ep->Get() ) != NULL )
1497                 {
1498                     if( MKV_IS_ID( el, KaxCluster ) )
1499                     {
1500                         KaxCluster *cluster = (KaxCluster*)el;
1501
1502                         /* add it to the index */
1503                         IndexAppendCluster( p_demux, cluster );
1504
1505                         if( (int64_t)cluster->GetElementPosition() >= i_pos )
1506                         {
1507                             p_sys->cluster = cluster;
1508                             p_sys->ep->Down();
1509                             break;
1510                         }
1511                     }
1512                 }
1513             }
1514 #endif
1515         }
1516     }
1517
1518     for( ; i_index < p_sys->i_index; i_index++ )
1519     {
1520         if( p_sys->index[i_index].i_time > i_date )
1521         {
1522             break;
1523         }
1524     }
1525
1526     if( i_index > 0 )
1527     {
1528         i_index--;
1529     }
1530
1531     msg_Dbg( p_demux, "seek got "I64Fd" (%d%%)",
1532                 p_sys->index[i_index].i_time,
1533                 (int)( 100 * p_sys->index[i_index].i_position /
1534                     stream_Size( p_demux->s ) ) );
1535
1536     p_sys->in->setFilePointer( p_sys->index[i_index].i_position,
1537                                 seek_beginning );
1538
1539
1540     /* now parse until key frame */
1541 #define tk  p_sys->track[i_track]
1542     i_track_skipping = 0;
1543     for( i_track = 0; i_track < p_sys->i_track; i_track++ )
1544     {
1545         if( tk.fmt.i_cat == VIDEO_ES )
1546         {
1547             tk.b_search_keyframe = VLC_TRUE;
1548             i_track_skipping++;
1549         }
1550     }
1551
1552     p_sys->i_start_pts = i_date;
1553
1554     es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1555
1556     while( i_track_skipping > 0 )
1557     {
1558         if( BlockGet( p_demux, &block, &i_block_ref1, &i_block_ref2, &i_block_duration ) )
1559         {
1560             msg_Warn( p_demux, "cannot get block EOF?" );
1561
1562             return;
1563         }
1564
1565         p_sys->i_pts = block->GlobalTimecode() / (mtime_t) 1000;
1566
1567         for( i_track = 0; i_track < p_sys->i_track; i_track++ )
1568         {
1569             if( tk.i_number == block->TrackNum() )
1570             {
1571                 break;
1572             }
1573         }
1574
1575         if( i_track < p_sys->i_track )
1576         {
1577             if( tk.fmt.i_cat == VIDEO_ES )
1578             {
1579                 if( i_block_ref1 == -1 && tk.b_search_keyframe )
1580                 {
1581                     tk.b_search_keyframe = VLC_FALSE;
1582                     i_track_skipping--;
1583                 }
1584                 if( !tk.b_search_keyframe )
1585                 {
1586                     BlockDecode( p_demux, block, 0, 0 );
1587                 }
1588             }
1589         }
1590
1591         delete block;
1592     }
1593 #undef tk
1594 }
1595
1596 /*****************************************************************************
1597  * Demux: reads and demuxes data packets
1598  *****************************************************************************
1599  * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
1600  *****************************************************************************/
1601 static int Demux( demux_t *p_demux)
1602 {
1603     demux_sys_t *p_sys = p_demux->p_sys;
1604     mtime_t        i_start_pts;
1605     int            i_block_count = 0;
1606         int            i_chapter;
1607
1608     KaxBlock *block;
1609     int64_t i_block_duration;
1610     int64_t i_block_ref1;
1611     int64_t i_block_ref2;
1612
1613     i_start_pts = -1;
1614
1615     for( ;; )
1616     {
1617                 if ( p_sys->editions[p_sys->i_current_edition].b_ordered )
1618                 {
1619                         /* 1st, we need to know in which chapter we are */
1620
1621                         /* check if we need to silently seek to a new location in the stream */
1622                         /* count the last duration time found for each track in a table (-1 not found, -2 silent) */
1623                         /* only seek after each duration >= end timecode of the current chapter */
1624                 }
1625
1626         if( BlockGet( p_demux, &block, &i_block_ref1, &i_block_ref2, &i_block_duration ) )
1627         {
1628             msg_Warn( p_demux, "cannot get block EOF?" );
1629
1630             return 0;
1631         }
1632
1633         p_sys->i_pts = block->GlobalTimecode() / (mtime_t) 1000;
1634
1635         if( p_sys->i_pts >= p_sys->i_start_pts  )
1636         {
1637             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pts );
1638         }
1639
1640         BlockDecode( p_demux, block, p_sys->i_pts, i_block_duration );
1641
1642                 UpdateCurrentChapter();
1643
1644         delete block;
1645         i_block_count++;
1646
1647         if( p_sys->i_pts > i_start_pts + (mtime_t)100000 || i_block_count > 5 )
1648         {
1649             return 1;
1650         }
1651     }
1652 }
1653
1654
1655
1656 /*****************************************************************************
1657  * Stream managment
1658  *****************************************************************************/
1659 vlc_stream_io_callback::vlc_stream_io_callback( stream_t *s_ )
1660 {
1661     s = s_;
1662     mb_eof = VLC_FALSE;
1663 }
1664
1665 uint32 vlc_stream_io_callback::read( void *p_buffer, size_t i_size )
1666 {
1667     if( i_size <= 0 || mb_eof )
1668     {
1669         return 0;
1670     }
1671
1672     return stream_Read( s, p_buffer, i_size );
1673 }
1674 void vlc_stream_io_callback::setFilePointer(int64_t i_offset, seek_mode mode )
1675 {
1676     int64_t i_pos;
1677
1678     switch( mode )
1679     {
1680         case seek_beginning:
1681             i_pos = i_offset;
1682             break;
1683         case seek_end:
1684             i_pos = stream_Size( s ) - i_offset;
1685             break;
1686         default:
1687             i_pos= stream_Tell( s ) + i_offset;
1688             break;
1689     }
1690
1691     if( i_pos < 0 || i_pos >= stream_Size( s ) )
1692     {
1693         mb_eof = VLC_TRUE;
1694         return;
1695     }
1696
1697     mb_eof = VLC_FALSE;
1698     if( stream_Seek( s, i_pos ) )
1699     {
1700         mb_eof = VLC_TRUE;
1701     }
1702     return;
1703 }
1704 size_t vlc_stream_io_callback::write( const void *p_buffer, size_t i_size )
1705 {
1706     return 0;
1707 }
1708 uint64 vlc_stream_io_callback::getFilePointer( void )
1709 {
1710     return stream_Tell( s );
1711 }
1712 void vlc_stream_io_callback::close( void )
1713 {
1714     return;
1715 }
1716
1717
1718 /*****************************************************************************
1719  * Ebml Stream parser
1720  *****************************************************************************/
1721 EbmlParser::EbmlParser( EbmlStream *es, EbmlElement *el_start )
1722 {
1723     int i;
1724
1725     m_es = es;
1726     m_got = NULL;
1727     m_el[0] = el_start;
1728
1729     for( i = 1; i < 6; i++ )
1730     {
1731         m_el[i] = NULL;
1732     }
1733     mi_level = 1;
1734     mi_user_level = 1;
1735     mb_keep = VLC_FALSE;
1736 }
1737
1738 EbmlParser::~EbmlParser( void )
1739 {
1740     int i;
1741
1742     for( i = 1; i < mi_level; i++ )
1743     {
1744         if( !mb_keep )
1745         {
1746             delete m_el[i];
1747         }
1748         mb_keep = VLC_FALSE;
1749     }
1750 }
1751
1752 void EbmlParser::Up( void )
1753 {
1754     if( mi_user_level == mi_level )
1755     {
1756         fprintf( stderr," arrrrrrrrrrrrrg Up cannot escape itself\n" );
1757     }
1758
1759     mi_user_level--;
1760 }
1761
1762 void EbmlParser::Down( void )
1763 {
1764     mi_user_level++;
1765     mi_level++;
1766 }
1767
1768 void EbmlParser::Keep( void )
1769 {
1770     mb_keep = VLC_TRUE;
1771 }
1772
1773 int EbmlParser::GetLevel( void )
1774 {
1775     return mi_user_level;
1776 }
1777
1778 EbmlElement *EbmlParser::Get( void )
1779 {
1780     int i_ulev = 0;
1781
1782     if( mi_user_level != mi_level )
1783     {
1784         return NULL;
1785     }
1786     if( m_got )
1787     {
1788         EbmlElement *ret = m_got;
1789         m_got = NULL;
1790
1791         return ret;
1792     }
1793
1794     if( m_el[mi_level] )
1795     {
1796         m_el[mi_level]->SkipData( *m_es, m_el[mi_level]->Generic().Context );
1797         if( !mb_keep )
1798         {
1799             delete m_el[mi_level];
1800         }
1801         mb_keep = VLC_FALSE;
1802     }
1803
1804     m_el[mi_level] = m_es->FindNextElement( m_el[mi_level - 1]->Generic().Context, i_ulev, 0xFFFFFFFFL, true, 1 );
1805     if( i_ulev > 0 )
1806     {
1807         while( i_ulev > 0 )
1808         {
1809             if( mi_level == 1 )
1810             {
1811                 mi_level = 0;
1812                 return NULL;
1813             }
1814
1815             delete m_el[mi_level - 1];
1816             m_got = m_el[mi_level -1] = m_el[mi_level];
1817             m_el[mi_level] = NULL;
1818
1819             mi_level--;
1820             i_ulev--;
1821         }
1822         return NULL;
1823     }
1824     else if( m_el[mi_level] == NULL )
1825     {
1826         fprintf( stderr," m_el[mi_level] == NULL\n" );
1827     }
1828
1829     return m_el[mi_level];
1830 }
1831
1832
1833 /*****************************************************************************
1834  * Tools
1835  *  * LoadCues : load the cues element and update index
1836  *
1837  *  * LoadTags : load ... the tags element
1838  *
1839  *  * InformationCreate : create all information, load tags if present
1840  *
1841  *****************************************************************************/
1842 static void LoadCues( demux_t *p_demux )
1843 {
1844     demux_sys_t *p_sys = p_demux->p_sys;
1845     int64_t     i_sav_position = p_sys->in->getFilePointer();
1846     EbmlParser  *ep;
1847     EbmlElement *el, *cues;
1848
1849     msg_Dbg( p_demux, "loading cues" );
1850     p_sys->in->setFilePointer( p_sys->i_cues_position, seek_beginning );
1851     cues = p_sys->es->FindNextID( KaxCues::ClassInfos, 0xFFFFFFFFL);
1852
1853     if( cues == NULL )
1854     {
1855         msg_Err( p_demux, "cannot load cues (broken seekhead or file)" );
1856         p_sys->in->setFilePointer( i_sav_position, seek_beginning );
1857         return;
1858     }
1859
1860     ep = new EbmlParser( p_sys->es, cues );
1861     while( ( el = ep->Get() ) != NULL )
1862     {
1863         if( MKV_IS_ID( el, KaxCuePoint ) )
1864         {
1865 #define idx p_sys->index[p_sys->i_index]
1866
1867             idx.i_track       = -1;
1868             idx.i_block_number= -1;
1869             idx.i_position    = -1;
1870             idx.i_time        = 0;
1871             idx.b_key         = VLC_TRUE;
1872
1873             ep->Down();
1874             while( ( el = ep->Get() ) != NULL )
1875             {
1876                 if( MKV_IS_ID( el, KaxCueTime ) )
1877                 {
1878                     KaxCueTime &ctime = *(KaxCueTime*)el;
1879
1880                     ctime.ReadData( p_sys->es->I_O() );
1881
1882                     idx.i_time = uint64( ctime ) * p_sys->i_timescale / (mtime_t)1000;
1883                 }
1884                 else if( MKV_IS_ID( el, KaxCueTrackPositions ) )
1885                 {
1886                     ep->Down();
1887                     while( ( el = ep->Get() ) != NULL )
1888                     {
1889                         if( MKV_IS_ID( el, KaxCueTrack ) )
1890                         {
1891                             KaxCueTrack &ctrack = *(KaxCueTrack*)el;
1892
1893                             ctrack.ReadData( p_sys->es->I_O() );
1894                             idx.i_track = uint16( ctrack );
1895                         }
1896                         else if( MKV_IS_ID( el, KaxCueClusterPosition ) )
1897                         {
1898                             KaxCueClusterPosition &ccpos = *(KaxCueClusterPosition*)el;
1899
1900                             ccpos.ReadData( p_sys->es->I_O() );
1901                             idx.i_position = p_sys->segment->GetGlobalPosition( uint64( ccpos ) );
1902                         }
1903                         else if( MKV_IS_ID( el, KaxCueBlockNumber ) )
1904                         {
1905                             KaxCueBlockNumber &cbnum = *(KaxCueBlockNumber*)el;
1906
1907                             cbnum.ReadData( p_sys->es->I_O() );
1908                             idx.i_block_number = uint32( cbnum );
1909                         }
1910                         else
1911                         {
1912                             msg_Dbg( p_demux, "         * Unknown (%s)", typeid(*el).name() );
1913                         }
1914                     }
1915                     ep->Up();
1916                 }
1917                 else
1918                 {
1919                     msg_Dbg( p_demux, "     * Unknown (%s)", typeid(*el).name() );
1920                 }
1921             }
1922             ep->Up();
1923
1924 #if 0
1925             msg_Dbg( p_demux, " * added time="I64Fd" pos="I64Fd
1926                      " track=%d bnum=%d", idx.i_time, idx.i_position,
1927                      idx.i_track, idx.i_block_number );
1928 #endif
1929
1930             p_sys->i_index++;
1931             if( p_sys->i_index >= p_sys->i_index_max )
1932             {
1933                 p_sys->i_index_max += 1024;
1934                 p_sys->index = (mkv_index_t*)realloc( p_sys->index, sizeof( mkv_index_t ) * p_sys->i_index_max );
1935             }
1936 #undef idx
1937         }
1938         else
1939         {
1940             msg_Dbg( p_demux, " * Unknown (%s)", typeid(*el).name() );
1941         }
1942     }
1943     delete ep;
1944     delete cues;
1945
1946     p_sys->b_cues = VLC_TRUE;
1947
1948     msg_Dbg( p_demux, "loading cues done." );
1949     p_sys->in->setFilePointer( i_sav_position, seek_beginning );
1950 }
1951
1952 static void LoadTags( demux_t *p_demux )
1953 {
1954     demux_sys_t *p_sys = p_demux->p_sys;
1955     int64_t     i_sav_position = p_sys->in->getFilePointer();
1956     EbmlParser  *ep;
1957     EbmlElement *el, *tags;
1958
1959     msg_Dbg( p_demux, "loading tags" );
1960     p_sys->in->setFilePointer( p_sys->i_tags_position, seek_beginning );
1961     tags = p_sys->es->FindNextID( KaxTags::ClassInfos, 0xFFFFFFFFL);
1962
1963     if( tags == NULL )
1964     {
1965         msg_Err( p_demux, "cannot load tags (broken seekhead or file)" );
1966         p_sys->in->setFilePointer( i_sav_position, seek_beginning );
1967         return;
1968     }
1969
1970     msg_Dbg( p_demux, "Tags" );
1971     ep = new EbmlParser( p_sys->es, tags );
1972     while( ( el = ep->Get() ) != NULL )
1973     {
1974         if( MKV_IS_ID( el, KaxTag ) )
1975         {
1976             msg_Dbg( p_demux, "+ Tag" );
1977             ep->Down();
1978             while( ( el = ep->Get() ) != NULL )
1979             {
1980                 if( MKV_IS_ID( el, KaxTagTargets ) )
1981                 {
1982                     msg_Dbg( p_demux, "|   + Targets" );
1983                     ep->Down();
1984                     while( ( el = ep->Get() ) != NULL )
1985                     {
1986                         msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid( *el ).name() );
1987                     }
1988                     ep->Up();
1989                 }
1990                 else if( MKV_IS_ID( el, KaxTagGeneral ) )
1991                 {
1992                     msg_Dbg( p_demux, "|   + General" );
1993                     ep->Down();
1994                     while( ( el = ep->Get() ) != NULL )
1995                     {
1996                         msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid( *el ).name() );
1997                     }
1998                     ep->Up();
1999                 }
2000                 else if( MKV_IS_ID( el, KaxTagGenres ) )
2001                 {
2002                     msg_Dbg( p_demux, "|   + Genres" );
2003                     ep->Down();
2004                     while( ( el = ep->Get() ) != NULL )
2005                     {
2006                         msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid( *el ).name() );
2007                     }
2008                     ep->Up();
2009                 }
2010                 else if( MKV_IS_ID( el, KaxTagAudioSpecific ) )
2011                 {
2012                     msg_Dbg( p_demux, "|   + Audio Specific" );
2013                     ep->Down();
2014                     while( ( el = ep->Get() ) != NULL )
2015                     {
2016                         msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid( *el ).name() );
2017                     }
2018                     ep->Up();
2019                 }
2020                 else if( MKV_IS_ID( el, KaxTagImageSpecific ) )
2021                 {
2022                     msg_Dbg( p_demux, "|   + Images Specific" );
2023                     ep->Down();
2024                     while( ( el = ep->Get() ) != NULL )
2025                     {
2026                         msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid( *el ).name() );
2027                     }
2028                     ep->Up();
2029                 }
2030                 else if( MKV_IS_ID( el, KaxTagMultiComment ) )
2031                 {
2032                     msg_Dbg( p_demux, "|   + Multi Comment" );
2033                 }
2034                 else if( MKV_IS_ID( el, KaxTagMultiCommercial ) )
2035                 {
2036                     msg_Dbg( p_demux, "|   + Multi Commercial" );
2037                 }
2038                 else if( MKV_IS_ID( el, KaxTagMultiDate ) )
2039                 {
2040                     msg_Dbg( p_demux, "|   + Multi Date" );
2041                 }
2042                 else if( MKV_IS_ID( el, KaxTagMultiEntity ) )
2043                 {
2044                     msg_Dbg( p_demux, "|   + Multi Entity" );
2045                 }
2046                 else if( MKV_IS_ID( el, KaxTagMultiIdentifier ) )
2047                 {
2048                     msg_Dbg( p_demux, "|   + Multi Identifier" );
2049                 }
2050                 else if( MKV_IS_ID( el, KaxTagMultiLegal ) )
2051                 {
2052                     msg_Dbg( p_demux, "|   + Multi Legal" );
2053                 }
2054                 else if( MKV_IS_ID( el, KaxTagMultiTitle ) )
2055                 {
2056                     msg_Dbg( p_demux, "|   + Multi Title" );
2057                 }
2058                 else
2059                 {
2060                     msg_Dbg( p_demux, "|   + Unknown (%s)", typeid( *el ).name() );
2061                 }
2062             }
2063             ep->Up();
2064         }
2065         else
2066         {
2067             msg_Dbg( p_demux, "+ Unknown (%s)", typeid( *el ).name() );
2068         }
2069     }
2070     delete ep;
2071     delete tags;
2072
2073     msg_Dbg( p_demux, "loading tags done." );
2074     p_sys->in->setFilePointer( i_sav_position, seek_beginning );
2075 }
2076
2077 /*****************************************************************************
2078  * ParseInfo:
2079  *****************************************************************************/
2080 static void ParseSeekHead( demux_t *p_demux, EbmlElement *seekhead )
2081 {
2082     demux_sys_t *p_sys = p_demux->p_sys;
2083     EbmlElement *el;
2084     EbmlMaster  *m;
2085     unsigned int i;
2086     int i_upper_level = 0;
2087
2088     msg_Dbg( p_demux, "|   + Seek head" );
2089
2090     /* Master elements */
2091     m = static_cast<EbmlMaster *>(seekhead);
2092     m->Read( *p_sys->es, seekhead->Generic().Context, i_upper_level, el, true );
2093
2094     for( i = 0; i < m->ListSize(); i++ )
2095     {
2096         EbmlElement *l = (*m)[i];
2097
2098         if( MKV_IS_ID( l, KaxSeek ) )
2099         {
2100             EbmlMaster *sk = static_cast<EbmlMaster *>(l);
2101             EbmlId id = EbmlVoid::ClassInfos.GlobalId;
2102             int64_t i_pos = -1;
2103
2104             unsigned int j;
2105
2106             for( j = 0; j < sk->ListSize(); j++ )
2107             {
2108                 EbmlElement *l = (*sk)[j];
2109
2110                 if( MKV_IS_ID( l, KaxSeekID ) )
2111                 {
2112                     KaxSeekID &sid = *(KaxSeekID*)l;
2113                     id = EbmlId( sid.GetBuffer(), sid.GetSize() );
2114                 }
2115                 else if( MKV_IS_ID( l, KaxSeekPosition ) )
2116                 {
2117                     KaxSeekPosition &spos = *(KaxSeekPosition*)l;
2118                     i_pos = uint64( spos );
2119                 }
2120                 else
2121                 {
2122                     msg_Dbg( p_demux, "|   |   |   + Unknown (%s)", typeid(*l).name() );
2123                 }
2124             }
2125
2126             if( i_pos >= 0 )
2127             {
2128                 if( id == KaxCues::ClassInfos.GlobalId )
2129                 {
2130                     msg_Dbg( p_demux, "|   |   |   = cues at "I64Fd, i_pos );
2131                     p_sys->i_cues_position = p_sys->segment->GetGlobalPosition( i_pos );
2132                 }
2133                 else if( id == KaxChapters::ClassInfos.GlobalId )
2134                 {
2135                     msg_Dbg( p_demux, "|   |   |   = chapters at "I64Fd, i_pos );
2136                     p_sys->i_chapters_position = p_sys->segment->GetGlobalPosition( i_pos );
2137                 }
2138                 else if( id == KaxTags::ClassInfos.GlobalId )
2139                 {
2140                     msg_Dbg( p_demux, "|   |   |   = tags at "I64Fd, i_pos );
2141                     p_sys->i_tags_position = p_sys->segment->GetGlobalPosition( i_pos );
2142                 }
2143             }
2144         }
2145         else
2146         {
2147             msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid(*l).name() );
2148         }
2149     }
2150 }
2151
2152 /*****************************************************************************
2153  * ParseTracks:
2154  *****************************************************************************/
2155 static void ParseTrackEntry( demux_t *p_demux, EbmlMaster *m )
2156 {
2157     demux_sys_t *p_sys = p_demux->p_sys;
2158     unsigned int i;
2159
2160     mkv_track_t *tk;
2161
2162     msg_Dbg( p_demux, "|   |   + Track Entry" );
2163
2164     p_sys->i_track++;
2165     p_sys->track = (mkv_track_t*)realloc( p_sys->track, sizeof( mkv_track_t ) * (p_sys->i_track + 1 ) );
2166
2167     /* Init the track */
2168     tk = &p_sys->track[p_sys->i_track - 1];
2169
2170     memset( tk, 0, sizeof( mkv_track_t ) );
2171
2172     es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
2173     tk->fmt.psz_language = strdup("English");
2174     tk->fmt.psz_description = NULL;
2175
2176     tk->b_default = VLC_TRUE;
2177     tk->b_enabled = VLC_TRUE;
2178     tk->i_number = p_sys->i_track - 1;
2179     tk->i_extra_data = 0;
2180     tk->p_extra_data = NULL;
2181     tk->psz_codec = NULL;
2182     tk->i_default_duration = 0;
2183     tk->f_timecodescale = 1.0;
2184
2185     tk->b_inited = VLC_FALSE;
2186     tk->i_data_init = 0;
2187     tk->p_data_init = NULL;
2188
2189     tk->psz_codec_name = NULL;
2190     tk->psz_codec_settings = NULL;
2191     tk->psz_codec_info_url = NULL;
2192     tk->psz_codec_download_url = NULL;
2193
2194     tk->i_compression_type = MATROSKA_COMPRESSION_NONE;
2195
2196     for( i = 0; i < m->ListSize(); i++ )
2197     {
2198         EbmlElement *l = (*m)[i];
2199
2200         if( MKV_IS_ID( l, KaxTrackNumber ) )
2201         {
2202             KaxTrackNumber &tnum = *(KaxTrackNumber*)l;
2203
2204             tk->i_number = uint32( tnum );
2205             msg_Dbg( p_demux, "|   |   |   + Track Number=%u", uint32( tnum ) );
2206         }
2207         else  if( MKV_IS_ID( l, KaxTrackUID ) )
2208         {
2209             KaxTrackUID &tuid = *(KaxTrackUID*)l;
2210
2211             msg_Dbg( p_demux, "|   |   |   + Track UID=%u",  uint32( tuid ) );
2212         }
2213         else  if( MKV_IS_ID( l, KaxTrackType ) )
2214         {
2215             char *psz_type;
2216             KaxTrackType &ttype = *(KaxTrackType*)l;
2217
2218             switch( uint8(ttype) )
2219             {
2220                 case track_audio:
2221                     psz_type = "audio";
2222                     tk->fmt.i_cat = AUDIO_ES;
2223                     break;
2224                 case track_video:
2225                     psz_type = "video";
2226                     tk->fmt.i_cat = VIDEO_ES;
2227                     break;
2228                 case track_subtitle:
2229                     psz_type = "subtitle";
2230                     tk->fmt.i_cat = SPU_ES;
2231                     break;
2232                 default:
2233                     psz_type = "unknown";
2234                     tk->fmt.i_cat = UNKNOWN_ES;
2235                     break;
2236             }
2237
2238             msg_Dbg( p_demux, "|   |   |   + Track Type=%s", psz_type );
2239         }
2240 //        else  if( EbmlId( *l ) == KaxTrackFlagEnabled::ClassInfos.GlobalId )
2241 //        {
2242 //            KaxTrackFlagEnabled &fenb = *(KaxTrackFlagEnabled*)l;
2243
2244 //            tk->b_enabled = uint32( fenb );
2245 //            msg_Dbg( p_demux, "|   |   |   + Track Enabled=%u",
2246 //                     uint32( fenb )  );
2247 //        }
2248         else  if( MKV_IS_ID( l, KaxTrackFlagDefault ) )
2249         {
2250             KaxTrackFlagDefault &fdef = *(KaxTrackFlagDefault*)l;
2251
2252             tk->b_default = uint32( fdef );
2253             msg_Dbg( p_demux, "|   |   |   + Track Default=%u", uint32( fdef )  );
2254         }
2255         else  if( MKV_IS_ID( l, KaxTrackFlagLacing ) )
2256         {
2257             KaxTrackFlagLacing &lac = *(KaxTrackFlagLacing*)l;
2258
2259             msg_Dbg( p_demux, "|   |   |   + Track Lacing=%d", uint32( lac ) );
2260         }
2261         else  if( MKV_IS_ID( l, KaxTrackMinCache ) )
2262         {
2263             KaxTrackMinCache &cmin = *(KaxTrackMinCache*)l;
2264
2265             msg_Dbg( p_demux, "|   |   |   + Track MinCache=%d", uint32( cmin ) );
2266         }
2267         else  if( MKV_IS_ID( l, KaxTrackMaxCache ) )
2268         {
2269             KaxTrackMaxCache &cmax = *(KaxTrackMaxCache*)l;
2270
2271             msg_Dbg( p_demux, "|   |   |   + Track MaxCache=%d", uint32( cmax ) );
2272         }
2273         else  if( MKV_IS_ID( l, KaxTrackDefaultDuration ) )
2274         {
2275             KaxTrackDefaultDuration &defd = *(KaxTrackDefaultDuration*)l;
2276
2277             tk->i_default_duration = uint64(defd);
2278             msg_Dbg( p_demux, "|   |   |   + Track Default Duration="I64Fd, uint64(defd) );
2279         }
2280         else  if( MKV_IS_ID( l, KaxTrackTimecodeScale ) )
2281         {
2282             KaxTrackTimecodeScale &ttcs = *(KaxTrackTimecodeScale*)l;
2283
2284             tk->f_timecodescale = float( ttcs );
2285             msg_Dbg( p_demux, "|   |   |   + Track TimeCodeScale=%f", tk->f_timecodescale );
2286         }
2287         else if( MKV_IS_ID( l, KaxTrackName ) )
2288         {
2289             KaxTrackName &tname = *(KaxTrackName*)l;
2290
2291             tk->fmt.psz_description = UTF8ToStr( UTFstring( tname ) );
2292             msg_Dbg( p_demux, "|   |   |   + Track Name=%s", tk->fmt.psz_description );
2293         }
2294         else  if( MKV_IS_ID( l, KaxTrackLanguage ) )
2295         {
2296             KaxTrackLanguage &lang = *(KaxTrackLanguage*)l;
2297
2298             tk->fmt.psz_language = strdup( string( lang ).c_str() );
2299             msg_Dbg( p_demux,
2300                      "|   |   |   + Track Language=`%s'", tk->fmt.psz_language );
2301         }
2302         else  if( MKV_IS_ID( l, KaxCodecID ) )
2303         {
2304             KaxCodecID &codecid = *(KaxCodecID*)l;
2305
2306             tk->psz_codec = strdup( string( codecid ).c_str() );
2307             msg_Dbg( p_demux, "|   |   |   + Track CodecId=%s", string( codecid ).c_str() );
2308         }
2309         else  if( MKV_IS_ID( l, KaxCodecPrivate ) )
2310         {
2311             KaxCodecPrivate &cpriv = *(KaxCodecPrivate*)l;
2312
2313             tk->i_extra_data = cpriv.GetSize();
2314             if( tk->i_extra_data > 0 )
2315             {
2316                 tk->p_extra_data = (uint8_t*)malloc( tk->i_extra_data );
2317                 memcpy( tk->p_extra_data, cpriv.GetBuffer(), tk->i_extra_data );
2318             }
2319             msg_Dbg( p_demux, "|   |   |   + Track CodecPrivate size="I64Fd, cpriv.GetSize() );
2320         }
2321         else if( MKV_IS_ID( l, KaxCodecName ) )
2322         {
2323             KaxCodecName &cname = *(KaxCodecName*)l;
2324
2325             tk->psz_codec_name = UTF8ToStr( UTFstring( cname ) );
2326             msg_Dbg( p_demux, "|   |   |   + Track Codec Name=%s", tk->psz_codec_name );
2327         }
2328         else if( MKV_IS_ID( l, KaxContentEncodings ) )
2329         {
2330             EbmlMaster *cencs = static_cast<EbmlMaster*>(l);
2331             MkvTree( p_demux, 3, "Content Encodings" );
2332             for( unsigned int i = 0; i < cencs->ListSize(); i++ )
2333             {
2334                 EbmlElement *l2 = (*cencs)[i];
2335                 if( MKV_IS_ID( l2, KaxContentEncoding ) )
2336                 {
2337                     MkvTree( p_demux, 4, "Content Encoding" );
2338                     EbmlMaster *cenc = static_cast<EbmlMaster*>(l2);
2339                     for( unsigned int i = 0; i < cenc->ListSize(); i++ )
2340                     {
2341                         EbmlElement *l3 = (*cenc)[i];
2342                         if( MKV_IS_ID( l3, KaxContentEncodingOrder ) )
2343                         {
2344                             KaxContentEncodingOrder &encord = *(KaxContentEncodingOrder*)l3;
2345                             MkvTree( p_demux, 5, "Order: %i", uint32( encord ) );
2346                         }
2347                         else if( MKV_IS_ID( l3, KaxContentEncodingScope ) )
2348                         {
2349                             KaxContentEncodingScope &encscope = *(KaxContentEncodingScope*)l3;
2350                             MkvTree( p_demux, 5, "Scope: %i", uint32( encscope ) );
2351                         }
2352                         else if( MKV_IS_ID( l3, KaxContentEncodingType ) )
2353                         {
2354                             KaxContentEncodingType &enctype = *(KaxContentEncodingType*)l3;
2355                             MkvTree( p_demux, 5, "Type: %i", uint32( enctype ) );
2356                         }
2357                         else if( MKV_IS_ID( l3, KaxContentCompression ) )
2358                         {
2359                             EbmlMaster *compr = static_cast<EbmlMaster*>(l3);
2360                             MkvTree( p_demux, 5, "Content Compression" );
2361                             for( unsigned int i = 0; i < compr->ListSize(); i++ )
2362                             {
2363                                 EbmlElement *l4 = (*compr)[i];
2364                                 if( MKV_IS_ID( l4, KaxContentCompAlgo ) )
2365                                 {
2366                                     KaxContentCompAlgo &compalg = *(KaxContentCompAlgo*)l4;
2367                                     MkvTree( p_demux, 6, "Compression Algorithm: %i", uint32(compalg) );
2368                                     if( uint32( compalg ) == 0 )
2369                                     {
2370                                         tk->i_compression_type = MATROSKA_COMPRESSION_ZLIB;
2371                                     }
2372                                 }
2373                                 else
2374                                 {
2375                                     MkvTree( p_demux, 6, "Unknown (%s)", typeid(*l4).name() );
2376                                 }
2377                             }
2378                         }
2379
2380                         else
2381                         {
2382                             MkvTree( p_demux, 5, "Unknown (%s)", typeid(*l3).name() );
2383                         }
2384                     }
2385
2386                 }
2387                 else
2388                 {
2389                     MkvTree( p_demux, 4, "Unknown (%s)", typeid(*l2).name() );
2390                 }
2391             }
2392
2393         }
2394 //        else if( EbmlId( *l ) == KaxCodecSettings::ClassInfos.GlobalId )
2395 //        {
2396 //            KaxCodecSettings &cset = *(KaxCodecSettings*)l;
2397
2398 //            tk->psz_codec_settings = UTF8ToStr( UTFstring( cset ) );
2399 //            msg_Dbg( p_demux, "|   |   |   + Track Codec Settings=%s", tk->psz_codec_settings );
2400 //        }
2401 //        else if( EbmlId( *l ) == KaxCodecInfoURL::ClassInfos.GlobalId )
2402 //        {
2403 //            KaxCodecInfoURL &ciurl = *(KaxCodecInfoURL*)l;
2404
2405 //            tk->psz_codec_info_url = strdup( string( ciurl ).c_str() );
2406 //            msg_Dbg( p_demux, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_info_url );
2407 //        }
2408 //        else if( EbmlId( *l ) == KaxCodecDownloadURL::ClassInfos.GlobalId )
2409 //        {
2410 //            KaxCodecDownloadURL &cdurl = *(KaxCodecDownloadURL*)l;
2411
2412 //            tk->psz_codec_download_url = strdup( string( cdurl ).c_str() );
2413 //            msg_Dbg( p_demux, "|   |   |   + Track Codec Info URL=%s", tk->psz_codec_download_url );
2414 //        }
2415 //        else if( EbmlId( *l ) == KaxCodecDecodeAll::ClassInfos.GlobalId )
2416 //        {
2417 //            KaxCodecDecodeAll &cdall = *(KaxCodecDecodeAll*)l;
2418
2419 //            msg_Dbg( p_demux, "|   |   |   + Track Codec Decode All=%u <== UNUSED", uint8( cdall ) );
2420 //        }
2421 //        else if( EbmlId( *l ) == KaxTrackOverlay::ClassInfos.GlobalId )
2422 //        {
2423 //            KaxTrackOverlay &tovr = *(KaxTrackOverlay*)l;
2424
2425 //            msg_Dbg( p_demux, "|   |   |   + Track Overlay=%u <== UNUSED", uint32( tovr ) );
2426 //        }
2427         else  if( MKV_IS_ID( l, KaxTrackVideo ) )
2428         {
2429             EbmlMaster *tkv = static_cast<EbmlMaster*>(l);
2430             unsigned int j;
2431
2432             msg_Dbg( p_demux, "|   |   |   + Track Video" );
2433             tk->f_fps = 0.0;
2434
2435             for( j = 0; j < tkv->ListSize(); j++ )
2436             {
2437                 EbmlElement *l = (*tkv)[j];
2438 //                if( EbmlId( *el4 ) == KaxVideoFlagInterlaced::ClassInfos.GlobalId )
2439 //                {
2440 //                    KaxVideoFlagInterlaced &fint = *(KaxVideoFlagInterlaced*)el4;
2441
2442 //                    msg_Dbg( p_demux, "|   |   |   |   + Track Video Interlaced=%u", uint8( fint ) );
2443 //                }
2444 //                else if( EbmlId( *el4 ) == KaxVideoStereoMode::ClassInfos.GlobalId )
2445 //                {
2446 //                    KaxVideoStereoMode &stereo = *(KaxVideoStereoMode*)el4;
2447
2448 //                    msg_Dbg( p_demux, "|   |   |   |   + Track Video Stereo Mode=%u", uint8( stereo ) );
2449 //                }
2450 //                else
2451                 if( MKV_IS_ID( l, KaxVideoPixelWidth ) )
2452                 {
2453                     KaxVideoPixelWidth &vwidth = *(KaxVideoPixelWidth*)l;
2454
2455                     tk->fmt.video.i_width = uint16( vwidth );
2456                     msg_Dbg( p_demux, "|   |   |   |   + width=%d", uint16( vwidth ) );
2457                 }
2458                 else if( MKV_IS_ID( l, KaxVideoPixelHeight ) )
2459                 {
2460                     KaxVideoPixelWidth &vheight = *(KaxVideoPixelWidth*)l;
2461
2462                     tk->fmt.video.i_height = uint16( vheight );
2463                     msg_Dbg( p_demux, "|   |   |   |   + height=%d", uint16( vheight ) );
2464                 }
2465                 else if( MKV_IS_ID( l, KaxVideoDisplayWidth ) )
2466                 {
2467                     KaxVideoDisplayWidth &vwidth = *(KaxVideoDisplayWidth*)l;
2468
2469                     tk->fmt.video.i_visible_width = uint16( vwidth );
2470                     msg_Dbg( p_demux, "|   |   |   |   + display width=%d", uint16( vwidth ) );
2471                 }
2472                 else if( MKV_IS_ID( l, KaxVideoDisplayHeight ) )
2473                 {
2474                     KaxVideoDisplayWidth &vheight = *(KaxVideoDisplayWidth*)l;
2475
2476                     tk->fmt.video.i_visible_height = uint16( vheight );
2477                     msg_Dbg( p_demux, "|   |   |   |   + display height=%d", uint16( vheight ) );
2478                 }
2479                 else if( MKV_IS_ID( l, KaxVideoFrameRate ) )
2480                 {
2481                     KaxVideoFrameRate &vfps = *(KaxVideoFrameRate*)l;
2482
2483                     tk->f_fps = float( vfps );
2484                     msg_Dbg( p_demux, "   |   |   |   + fps=%f", float( vfps ) );
2485                 }
2486 //                else if( EbmlId( *l ) == KaxVideoDisplayUnit::ClassInfos.GlobalId )
2487 //                {
2488 //                     KaxVideoDisplayUnit &vdmode = *(KaxVideoDisplayUnit*)l;
2489
2490 //                    msg_Dbg( p_demux, "|   |   |   |   + Track Video Display Unit=%s",
2491 //                             uint8( vdmode ) == 0 ? "pixels" : ( uint8( vdmode ) == 1 ? "centimeters": "inches" ) );
2492 //                }
2493 //                else if( EbmlId( *l ) == KaxVideoAspectRatio::ClassInfos.GlobalId )
2494 //                {
2495 //                    KaxVideoAspectRatio &ratio = *(KaxVideoAspectRatio*)l;
2496
2497 //                    msg_Dbg( p_demux, "   |   |   |   + Track Video Aspect Ratio Type=%u", uint8( ratio ) );
2498 //                }
2499 //                else if( EbmlId( *l ) == KaxVideoGamma::ClassInfos.GlobalId )
2500 //                {
2501 //                    KaxVideoGamma &gamma = *(KaxVideoGamma*)l;
2502
2503 //                    msg_Dbg( p_demux, "   |   |   |   + fps=%f", float( gamma ) );
2504 //                }
2505                 else
2506                 {
2507                     msg_Dbg( p_demux, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
2508                 }
2509             }
2510         }
2511         else  if( MKV_IS_ID( l, KaxTrackAudio ) )
2512         {
2513             EbmlMaster *tka = static_cast<EbmlMaster*>(l);
2514             unsigned int j;
2515
2516             msg_Dbg( p_demux, "|   |   |   + Track Audio" );
2517
2518             for( j = 0; j < tka->ListSize(); j++ )
2519             {
2520                 EbmlElement *l = (*tka)[j];
2521
2522                 if( MKV_IS_ID( l, KaxAudioSamplingFreq ) )
2523                 {
2524                     KaxAudioSamplingFreq &afreq = *(KaxAudioSamplingFreq*)l;
2525
2526                     tk->fmt.audio.i_rate = (int)float( afreq );
2527                     msg_Dbg( p_demux, "|   |   |   |   + afreq=%d", tk->fmt.audio.i_rate );
2528                 }
2529                 else if( MKV_IS_ID( l, KaxAudioChannels ) )
2530                 {
2531                     KaxAudioChannels &achan = *(KaxAudioChannels*)l;
2532
2533                     tk->fmt.audio.i_channels = uint8( achan );
2534                     msg_Dbg( p_demux, "|   |   |   |   + achan=%u", uint8( achan ) );
2535                 }
2536                 else if( MKV_IS_ID( l, KaxAudioBitDepth ) )
2537                 {
2538                     KaxAudioBitDepth &abits = *(KaxAudioBitDepth*)l;
2539
2540                     tk->fmt.audio.i_bitspersample = uint8( abits );
2541                     msg_Dbg( p_demux, "|   |   |   |   + abits=%u", uint8( abits ) );
2542                 }
2543                 else
2544                 {
2545                     msg_Dbg( p_demux, "|   |   |   |   + Unknown (%s)", typeid(*l).name() );
2546                 }
2547             }
2548         }
2549         else
2550         {
2551             msg_Dbg( p_demux, "|   |   |   + Unknown (%s)",
2552                      typeid(*l).name() );
2553         }
2554     }
2555 }
2556
2557 static void ParseTracks( demux_t *p_demux, EbmlElement *tracks )
2558 {
2559     demux_sys_t *p_sys = p_demux->p_sys;
2560     EbmlElement *el;
2561     EbmlMaster  *m;
2562     unsigned int i;
2563     int i_upper_level = 0;
2564
2565     msg_Dbg( p_demux, "|   + Tracks" );
2566
2567     /* Master elements */
2568     m = static_cast<EbmlMaster *>(tracks);
2569     m->Read( *p_sys->es, tracks->Generic().Context, i_upper_level, el, true );
2570
2571     for( i = 0; i < m->ListSize(); i++ )
2572     {
2573         EbmlElement *l = (*m)[i];
2574
2575         if( MKV_IS_ID( l, KaxTrackEntry ) )
2576         {
2577             ParseTrackEntry( p_demux, static_cast<EbmlMaster *>(l) );
2578         }
2579         else
2580         {
2581             msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid(*l).name() );
2582         }
2583     }
2584 }
2585
2586 /*****************************************************************************
2587  * ParseInfo:
2588  *****************************************************************************/
2589 static void ParseInfo( demux_t *p_demux, EbmlElement *info )
2590 {
2591     demux_sys_t *p_sys = p_demux->p_sys;
2592     EbmlElement *el;
2593     EbmlMaster  *m;
2594     unsigned int i;
2595     int i_upper_level = 0;
2596
2597     msg_Dbg( p_demux, "|   + Information" );
2598
2599     /* Master elements */
2600     m = static_cast<EbmlMaster *>(info);
2601     m->Read( *p_sys->es, info->Generic().Context, i_upper_level, el, true );
2602
2603     for( i = 0; i < m->ListSize(); i++ )
2604     {
2605         EbmlElement *l = (*m)[i];
2606
2607         if( MKV_IS_ID( l, KaxSegmentUID ) )
2608         {
2609             p_sys->segment_uid = *(new KaxSegmentUID(*static_cast<KaxSegmentUID*>(l)));
2610
2611             msg_Dbg( p_demux, "|   |   + UID=%d", *(uint32*)p_sys->segment_uid.GetBuffer() );
2612         }
2613         else if( MKV_IS_ID( l, KaxTimecodeScale ) )
2614         {
2615             KaxTimecodeScale &tcs = *(KaxTimecodeScale*)l;
2616
2617             p_sys->i_timescale = uint64(tcs);
2618
2619             msg_Dbg( p_demux, "|   |   + TimecodeScale="I64Fd,
2620                      p_sys->i_timescale );
2621         }
2622         else if( MKV_IS_ID( l, KaxDuration ) )
2623         {
2624             KaxDuration &dur = *(KaxDuration*)l;
2625
2626             p_sys->f_duration = float(dur);
2627
2628             msg_Dbg( p_demux, "|   |   + Duration=%f",
2629                      p_sys->f_duration );
2630         }
2631         else if( MKV_IS_ID( l, KaxMuxingApp ) )
2632         {
2633             KaxMuxingApp &mapp = *(KaxMuxingApp*)l;
2634
2635             p_sys->psz_muxing_application = UTF8ToStr( UTFstring( mapp ) );
2636
2637             msg_Dbg( p_demux, "|   |   + Muxing Application=%s",
2638                      p_sys->psz_muxing_application );
2639         }
2640         else if( MKV_IS_ID( l, KaxWritingApp ) )
2641         {
2642             KaxWritingApp &wapp = *(KaxWritingApp*)l;
2643
2644             p_sys->psz_writing_application = UTF8ToStr( UTFstring( wapp ) );
2645
2646             msg_Dbg( p_demux, "|   |   + Writing Application=%s",
2647                      p_sys->psz_writing_application );
2648         }
2649         else if( MKV_IS_ID( l, KaxSegmentFilename ) )
2650         {
2651             KaxSegmentFilename &sfn = *(KaxSegmentFilename*)l;
2652
2653             p_sys->psz_segment_filename = UTF8ToStr( UTFstring( sfn ) );
2654
2655             msg_Dbg( p_demux, "|   |   + Segment Filename=%s",
2656                      p_sys->psz_segment_filename );
2657         }
2658         else if( MKV_IS_ID( l, KaxTitle ) )
2659         {
2660             KaxTitle &title = *(KaxTitle*)l;
2661
2662             p_sys->psz_title = UTF8ToStr( UTFstring( title ) );
2663
2664             msg_Dbg( p_demux, "|   |   + Title=%s", p_sys->psz_title );
2665         }
2666         if( MKV_IS_ID( l, KaxSegmentFamily ) )
2667         {
2668             KaxSegmentFamily *uid = static_cast<KaxSegmentFamily*>(l);
2669
2670             p_sys->families.push_back(*uid);
2671
2672             msg_Dbg( p_demux, "|   |   + family=%d", *(uint32*)uid->GetBuffer() );
2673         }
2674 #if defined( HAVE_GMTIME_R ) && !defined( SYS_DARWIN )
2675         else if( MKV_IS_ID( l, KaxDateUTC ) )
2676         {
2677             KaxDateUTC &date = *(KaxDateUTC*)l;
2678             time_t i_date;
2679             struct tm tmres;
2680             char   buffer[256];
2681
2682             i_date = date.GetEpochDate();
2683             memset( buffer, 0, 256 );
2684             if( gmtime_r( &i_date, &tmres ) &&
2685                 asctime_r( &tmres, buffer ) )
2686             {
2687                 buffer[strlen( buffer)-1]= '\0';
2688                 p_sys->psz_date_utc = strdup( buffer );
2689                 msg_Dbg( p_demux, "|   |   + Date=%s", p_sys->psz_date_utc );
2690             }
2691         }
2692 #endif
2693         else
2694         {
2695             msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid(*l).name() );
2696         }
2697     }
2698
2699     p_sys->f_duration *= p_sys->i_timescale / 1000000.0;
2700 }
2701
2702
2703 /*****************************************************************************
2704  * ParseChapterAtom
2705  *****************************************************************************/
2706 static void ParseChapterAtom( demux_t *p_demux, int i_level, EbmlMaster *ca, chapter_item_t & chapters )
2707 {
2708     demux_sys_t *p_sys = p_demux->p_sys;
2709     unsigned int i;
2710     seekpoint_t *sk;
2711     bool b_display_seekpoint = true;
2712
2713     if( p_sys->title == NULL )
2714     {
2715         p_sys->title = vlc_input_title_New();
2716     }
2717     sk = vlc_seekpoint_New();
2718
2719     sk->i_level = i_level;
2720
2721     msg_Dbg( p_demux, "|   |   |   + ChapterAtom (level=%d)", i_level );
2722     for( i = 0; i < ca->ListSize(); i++ )
2723     {
2724         EbmlElement *l = (*ca)[i];
2725
2726         if( MKV_IS_ID( l, KaxChapterUID ) )
2727         {
2728             KaxChapterUID &uid = *(KaxChapterUID*)l;
2729             uint32_t i_uid = uint32( uid );
2730             msg_Dbg( p_demux, "|   |   |   |   + ChapterUID: 0x%x", i_uid );
2731         }
2732         else if( MKV_IS_ID( l, KaxChapterFlagHidden ) )
2733         {
2734             KaxChapterFlagHidden &flag =*(KaxChapterFlagHidden*)l;
2735             b_display_seekpoint = uint8( flag ) == 0;
2736
2737             msg_Dbg( p_demux, "|   |   |   |   + ChapterFlagHidden: %s", b_display_seekpoint ? "no":"yes" );
2738         }
2739         else if( MKV_IS_ID( l, KaxChapterTimeStart ) )
2740         {
2741             KaxChapterTimeStart &start =*(KaxChapterTimeStart*)l;
2742             sk->i_time_offset = uint64( start ) / I64C(1000);
2743
2744             msg_Dbg( p_demux, "|   |   |   |   + ChapterTimeStart: %lld", sk->i_time_offset );
2745         }
2746         else if( MKV_IS_ID( l, KaxChapterTimeEnd ) )
2747         {
2748             KaxChapterTimeEnd &end =*(KaxChapterTimeEnd*)l;
2749             int64_t i_end = uint64( end );
2750
2751             msg_Dbg( p_demux, "|   |   |   |   + ChapterTimeEnd: %lld", i_end );
2752         }
2753         else if( MKV_IS_ID( l, KaxChapterDisplay ) )
2754         {
2755             EbmlMaster *cd = static_cast<EbmlMaster *>(l);
2756             unsigned int j;
2757
2758             msg_Dbg( p_demux, "|   |   |   |   + ChapterDisplay" );
2759             for( j = 0; j < cd->ListSize(); j++ )
2760             {
2761                 EbmlElement *l= (*cd)[j];
2762
2763                 if( MKV_IS_ID( l, KaxChapterString ) )
2764                 {
2765                     std::string psz;
2766                     int k;
2767
2768                     KaxChapterString &name =*(KaxChapterString*)l;
2769                     for (k = 0; k < i_level; k++)
2770                         psz += '+';
2771                     psz += ' ';
2772                     psz += UTF8ToStr( UTFstring( name ) );
2773                     sk->psz_name = strdup( psz.c_str() );
2774                     msg_Dbg( p_demux, "|   |   |   |   |    + ChapterString '%s'", UTF8ToStr(UTFstring(name)) );
2775                 }
2776                 else if( MKV_IS_ID( l, KaxChapterLanguage ) )
2777                 {
2778                     KaxChapterLanguage &lang =*(KaxChapterLanguage*)l;
2779                     const char *psz = string( lang ).c_str();
2780
2781                     msg_Dbg( p_demux, "|   |   |   |   |    + ChapterLanguage '%s'", psz );
2782                 }
2783                 else if( MKV_IS_ID( l, KaxChapterCountry ) )
2784                 {
2785                     KaxChapterCountry &ct =*(KaxChapterCountry*)l;
2786                     const char *psz = string( ct ).c_str();
2787
2788                     msg_Dbg( p_demux, "|   |   |   |   |    + ChapterCountry '%s'", psz );
2789                 }
2790             }
2791         }
2792         else if( MKV_IS_ID( l, KaxChapterAtom ) )
2793         {
2794                         chapter_item_t new_sub_chapter;
2795             ParseChapterAtom( p_demux, i_level+1, static_cast<EbmlMaster *>(l), new_sub_chapter );
2796                         chapters.sub_chapters.push_back( new_sub_chapter );
2797         }
2798     }
2799
2800     if (b_display_seekpoint)
2801     {
2802         // A start time of '0' is ok. A missing ChapterTime element is ok, too, because '0' is its default value.
2803         p_sys->title->i_seekpoint++;
2804         p_sys->title->seekpoint = (seekpoint_t**)realloc( p_sys->title->seekpoint, p_sys->title->i_seekpoint * sizeof( seekpoint_t* ) );
2805         p_sys->title->seekpoint[p_sys->title->i_seekpoint-1] = sk;
2806     }
2807     else
2808     {
2809         vlc_seekpoint_Delete(sk);
2810     }
2811 }
2812
2813 /*****************************************************************************
2814  * ParseChapters:
2815  *****************************************************************************/
2816 static void ParseChapters( demux_t *p_demux, EbmlElement *chapters )
2817 {
2818     demux_sys_t *p_sys = p_demux->p_sys;
2819     EbmlElement *el;
2820     EbmlMaster  *m;
2821     unsigned int i;
2822     int i_upper_level = 0;
2823         int i_default_edition = 0;
2824
2825     /* Master elements */
2826     m = static_cast<EbmlMaster *>(chapters);
2827     m->Read( *p_sys->es, chapters->Generic().Context, i_upper_level, el, true );
2828
2829     for( i = 0; i < m->ListSize(); i++ )
2830     {
2831         EbmlElement *l = (*m)[i];
2832
2833         if( MKV_IS_ID( l, KaxEditionEntry ) )
2834         {
2835                         chapter_edition_t edition;
2836
2837             EbmlMaster *E = static_cast<EbmlMaster *>(l );
2838             unsigned int j;
2839             msg_Dbg( p_demux, "|   |   + EditionEntry" );
2840             for( j = 0; j < E->ListSize(); j++ )
2841             {
2842                 EbmlElement *l = (*E)[j];
2843
2844                 if( MKV_IS_ID( l, KaxChapterAtom ) )
2845                 {
2846                                         chapter_item_t new_sub_chapter;
2847                     ParseChapterAtom( p_demux, 0, static_cast<EbmlMaster *>(l), new_sub_chapter );
2848                                         edition.chapters.push_back( new_sub_chapter );
2849                 }
2850                 else if( MKV_IS_ID( l, KaxEditionUID ) )
2851                 {
2852                     edition.i_uid = uint64(*static_cast<KaxEditionUID *>(l));
2853                 }
2854                 else if( MKV_IS_ID( l, KaxEditionFlagOrdered ) )
2855                 {
2856                     edition.b_ordered = uint8(*static_cast<KaxEditionFlagOrdered *>(l)) != 0;
2857                 }
2858                 else if( MKV_IS_ID( l, KaxEditionFlagDefault ) )
2859                 {
2860                                         if (uint8(*static_cast<KaxEditionFlagDefault *>(l)) != 0)
2861                                                 p_sys->i_current_edition = p_sys->editions.size();
2862                 }
2863                 else
2864                 {
2865                     msg_Dbg( p_demux, "|   |   |   + Unknown (%s)", typeid(*l).name() );
2866                 }
2867             }
2868                         p_sys->editions.push_back( edition );
2869         }
2870         else
2871         {
2872             msg_Dbg( p_demux, "|   |   + Unknown (%s)", typeid(*l).name() );
2873         }
2874     }
2875
2876         p_sys->i_current_edition = i_default_edition;
2877
2878         if ( p_sys->editions[i_default_edition].b_ordered )
2879         {
2880                 /* update the duration of the segment according to the sum of all sub chapters */
2881         }
2882 }
2883
2884 /*****************************************************************************
2885  * InformationCreate:
2886  *****************************************************************************/
2887 static void InformationCreate( demux_t *p_demux )
2888 {
2889     demux_sys_t *p_sys = p_demux->p_sys;
2890     int         i_track;
2891
2892     p_sys->meta = vlc_meta_New();
2893
2894     if( p_sys->psz_title )
2895     {
2896         vlc_meta_Add( p_sys->meta, VLC_META_TITLE, p_sys->psz_title );
2897     }
2898     if( p_sys->psz_date_utc )
2899     {
2900         vlc_meta_Add( p_sys->meta, VLC_META_DATE, p_sys->psz_date_utc );
2901     }
2902     if( p_sys->psz_segment_filename )
2903     {
2904         vlc_meta_Add( p_sys->meta, _("Segment filename"), p_sys->psz_segment_filename );
2905     }
2906     if( p_sys->psz_muxing_application )
2907     {
2908         vlc_meta_Add( p_sys->meta, _("Muxing application"), p_sys->psz_muxing_application );
2909     }
2910     if( p_sys->psz_writing_application )
2911     {
2912         vlc_meta_Add( p_sys->meta, _("Writing application"), p_sys->psz_writing_application );
2913     }
2914
2915     for( i_track = 0; i_track < p_sys->i_track; i_track++ )
2916     {
2917         mkv_track_t *tk = &p_sys->track[i_track];
2918         vlc_meta_t *mtk = vlc_meta_New();
2919
2920         p_sys->meta->track = (vlc_meta_t**)realloc( p_sys->meta->track,
2921                                                     sizeof( vlc_meta_t * ) * ( p_sys->meta->i_track + 1 ) );
2922         p_sys->meta->track[p_sys->meta->i_track++] = mtk;
2923
2924         if( tk->fmt.psz_description )
2925         {
2926             vlc_meta_Add( p_sys->meta, VLC_META_DESCRIPTION, tk->fmt.psz_description );
2927         }
2928         if( tk->psz_codec_name )
2929         {
2930             vlc_meta_Add( p_sys->meta, VLC_META_CODEC_NAME, tk->psz_codec_name );
2931         }
2932         if( tk->psz_codec_settings )
2933         {
2934             vlc_meta_Add( p_sys->meta, VLC_META_SETTING, tk->psz_codec_settings );
2935         }
2936         if( tk->psz_codec_info_url )
2937         {
2938             vlc_meta_Add( p_sys->meta, VLC_META_CODEC_DESCRIPTION, tk->psz_codec_info_url );
2939         }
2940         if( tk->psz_codec_download_url )
2941         {
2942             vlc_meta_Add( p_sys->meta, VLC_META_URL, tk->psz_codec_download_url );
2943         }
2944     }
2945
2946     if( p_sys->i_tags_position >= 0 )
2947     {
2948         vlc_bool_t b_seekable;
2949
2950         stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b_seekable );
2951         if( b_seekable )
2952         {
2953             LoadTags( p_demux );
2954         }
2955     }
2956 }
2957
2958
2959 /*****************************************************************************
2960  * Divers
2961  *****************************************************************************/
2962
2963 static void IndexAppendCluster( demux_t *p_demux, KaxCluster *cluster )
2964 {
2965     demux_sys_t *p_sys = p_demux->p_sys;
2966
2967 #define idx p_sys->index[p_sys->i_index]
2968     idx.i_track       = -1;
2969     idx.i_block_number= -1;
2970     idx.i_position    = cluster->GetElementPosition();
2971     idx.i_time        = -1;
2972     idx.b_key         = VLC_TRUE;
2973
2974     p_sys->i_index++;
2975     if( p_sys->i_index >= p_sys->i_index_max )
2976     {
2977         p_sys->i_index_max += 1024;
2978         p_sys->index = (mkv_index_t*)realloc( p_sys->index, sizeof( mkv_index_t ) * p_sys->i_index_max );
2979     }
2980 #undef idx
2981 }
2982
2983 static char * UTF8ToStr( const UTFstring &u )
2984 {
2985     int     i_src;
2986     const wchar_t *src;
2987     char *dst, *p;
2988
2989     i_src = u.length();
2990     src   = u.c_str();
2991
2992     p = dst = (char*)malloc( i_src + 1);
2993     while( i_src > 0 )
2994     {
2995         if( *src < 255 )
2996         {
2997             *p++ = (char)*src;
2998         }
2999         else
3000         {
3001             *p++ = '?';
3002         }
3003         src++;
3004         i_src--;
3005     }
3006     *p++= '\0';
3007
3008     return dst;
3009 }
3010