git.sesse.net Git - vlc/blob - modules/demux/mp4/mp4.c

   1 /*****************************************************************************
   2  * mp4.c : MP4 file input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001 VideoLAN
   5  * $Id: mp4.c,v 1.53 2004/01/18 06:33:21 fenrir Exp $
   6  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26 #include <stdlib.h>                                      /* malloc(), free() */
  27
  28 #include <vlc/vlc.h>
  29 #include <vlc/input.h>
  30 #include <vlc_playlist.h>
  31 #include "iso_lang.h"
  32
  33 #include "libmp4.h"
  34 #include "mp4.h"
  35 #include "drms.h"
  36
  37 /*****************************************************************************
  38  * Module descriptor
  39  *****************************************************************************/
  40 static int  Open ( vlc_object_t * );
  41 static void Close( vlc_object_t * );
  42
  43 vlc_module_begin();
  44     set_description( _("MP4 demuxer") );
  45     set_capability( "demux", 242 );
  46     set_callbacks( Open, Close );
  47 vlc_module_end();
  48
  49 /*****************************************************************************
  50  * Local prototypes
  51  *****************************************************************************/
  52 static int    Demux   ( input_thread_t * );
  53 static int    DemuxRef( input_thread_t *p_input )
  54 {
  55     return 0;
  56 }
  57 static int   Seek     ( input_thread_t *, mtime_t );
  58 static int   Control  ( input_thread_t *, int, va_list );
  59
  60 /*****************************************************************************
  61  * Declaration of local function
  62  *****************************************************************************/
  63 static void MP4_TrackCreate ( input_thread_t *, track_data_mp4_t *, MP4_Box_t  *);
  64 static void MP4_TrackDestroy( input_thread_t *, track_data_mp4_t * );
  65
  66 static int  MP4_TrackSelect ( input_thread_t *, track_data_mp4_t *, mtime_t );
  67 static void MP4_TrackUnselect(input_thread_t *, track_data_mp4_t * );
  68
  69 static int  MP4_TrackSeek   ( input_thread_t *, track_data_mp4_t *, mtime_t );
  70
  71 static uint64_t MP4_GetTrackPos    ( track_data_mp4_t * );
  72 static int      MP4_TrackSampleSize( track_data_mp4_t * );
  73 static int      MP4_TrackNextSample( input_thread_t *, track_data_mp4_t * );
  74
  75 static char *LanguageGetName( const char *psz_code );
  76
  77 #define FREE( p ) \
  78     if( p ) { free( p ); (p) = NULL;}
  79
  80 /*****************************************************************************
  81  * Open: check file and initializes MP4 structures
  82  *****************************************************************************/
  83 static int Open( vlc_object_t * p_this )
  84 {
  85     input_thread_t  *p_input = (input_thread_t *)p_this;
  86     demux_sys_t     *p_sys;
  87
  88     uint8_t         *p_peek;
  89
  90     MP4_Box_t       *p_ftyp;
  91     MP4_Box_t       *p_rmra;
  92     MP4_Box_t       *p_mvhd;
  93     MP4_Box_t       *p_trak;
  94
  95     unsigned int    i;
  96     vlc_bool_t      b_seekable;
  97
  98     /* a little test to see if it could be a mp4 */
  99     if( stream_Peek( p_input->s, &p_peek, 8 ) < 8 )
 100     {
 101         msg_Warn( p_input, "MP4 plugin discarded (cannot peek)" );
 102         return VLC_EGENERIC;
 103     }
 104     switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
 105     {
 106         case FOURCC_ftyp:
 107         case FOURCC_moov:
 108         case FOURCC_foov:
 109         case FOURCC_moof:
 110         case FOURCC_mdat:
 111         case FOURCC_udta:
 112         case FOURCC_free:
 113         case FOURCC_skip:
 114         case FOURCC_wide:
 115         case VLC_FOURCC( 'p', 'n', 'o', 't' ):
 116             break;
 117          default:
 118             msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
 119             return VLC_EGENERIC;
 120     }
 121
 122     /* I need to seek */
 123     stream_Control( p_input->s, STREAM_CAN_SEEK, &b_seekable );
 124     if( !b_seekable )
 125     {
 126         msg_Warn( p_input, "MP4 plugin discarded (unseekable)" );
 127         return VLC_EGENERIC;
 128     }
 129
 130     /*Set exported functions */
 131     p_input->pf_demux = Demux;
 132     p_input->pf_demux_control = Control;
 133
 134     /* create our structure that will contains all data */
 135     p_input->p_demux_data = p_sys = malloc( sizeof( demux_sys_t ) );
 136     memset( p_sys, 0, sizeof( demux_sys_t ) );
 137
 138     /* Now load all boxes ( except raw data ) */
 139     if( ( p_sys->p_root = MP4_BoxGetRoot( p_input ) ) == NULL )
 140     {
 141         msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
 142         goto error;
 143     }
 144
 145     MP4_BoxDumpStructure( p_input, p_sys->p_root );
 146
 147     if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
 148     {
 149         switch( p_ftyp->data.p_ftyp->i_major_brand )
 150         {
 151             case( FOURCC_isom ):
 152                 msg_Dbg( p_input,
 153                          "ISO Media file (isom) version %d.",
 154                          p_ftyp->data.p_ftyp->i_minor_version );
 155                 break;
 156             default:
 157                 msg_Dbg( p_input,
 158                          "unrecognized major file specification (%4.4s).",
 159                           (char*)&p_ftyp->data.p_ftyp->i_major_brand );
 160                 break;
 161         }
 162     }
 163     else
 164     {
 165         msg_Dbg( p_input, "file type box missing (assuming ISO Media file)" );
 166     }
 167
 168     /* the file need to have one moov box */
 169     if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
 170     {
 171         MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
 172
 173         if( !p_foov )
 174         {
 175             msg_Err( p_input, "MP4 plugin discarded (no moov box)" );
 176             goto error;
 177         }
 178         /* we have a free box as a moov, rename it */
 179         p_foov->i_type = FOURCC_moov;
 180     }
 181
 182     if( ( p_rmra = MP4_BoxGet( p_sys->p_root,  "/moov/rmra" ) ) )
 183     {
 184         playlist_t *p_playlist;
 185         int        i_count = MP4_BoxCount( p_rmra, "rmda" );
 186         int        i;
 187
 188         msg_Dbg( p_input, "detected playlist mov file (%d ref)", i_count );
 189
 190         p_playlist =
 191             (playlist_t *)vlc_object_find( p_input,
 192                                            VLC_OBJECT_PLAYLIST,
 193                                            FIND_ANYWHERE );
 194         if( p_playlist )
 195         {
 196             //p_playlist->pp_items[p_playlist->i_index]->b_autodeletion = VLC_TRUE;
 197             for( i = 0; i < i_count; i++ )
 198             {
 199                 MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
 200                 char      *psz_ref;
 201                 uint32_t  i_ref_type;
 202
 203                 if( !p_rdrf || !( psz_ref = p_rdrf->data.p_rdrf->psz_ref ) )
 204                 {
 205                     continue;
 206                 }
 207                 i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
 208
 209                 msg_Dbg( p_input, "new ref=`%s' type=%4.4s",
 210                          psz_ref, (char*)&i_ref_type );
 211
 212                 if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
 213                 {
 214                     if( strstr( psz_ref, "qt5gateQT" ) )
 215                     {
 216                         msg_Dbg( p_input, "ignoring pseudo ref =`%s'", psz_ref );
 217                         continue;
 218                     }
 219                     if( !strncmp( psz_ref, "http://", 7 ) ||
 220                         !strncmp( psz_ref, "rtsp://", 7 ) )
 221                     {
 222                         msg_Dbg( p_input, "adding ref = `%s'", psz_ref );
 223                         playlist_Add( p_playlist, psz_ref, psz_ref,
 224                                       PLAYLIST_APPEND, PLAYLIST_END );
 225                     }
 226                     else
 227                     {
 228                         /* msg dbg relative ? */
 229                         char *psz_absolute = alloca( strlen( p_input->psz_source ) + strlen( psz_ref ) + 1);
 230                         char *end = strrchr( p_input->psz_source, '/' );
 231
 232                         if( end )
 233                         {
 234                             int i_len = end + 1 - p_input->psz_source;
 235
 236                             strncpy( psz_absolute, p_input->psz_source, i_len);
 237                             psz_absolute[i_len] = '\0';
 238                         }
 239                         else
 240                         {
 241                             strcpy( psz_absolute, "" );
 242                         }
 243                         strcat( psz_absolute, psz_ref );
 244                         msg_Dbg( p_input, "adding ref = `%s'", psz_absolute );
 245                         playlist_Add( p_playlist, psz_absolute, psz_absolute,
 246                                       PLAYLIST_APPEND, PLAYLIST_END );
 247                     }
 248                 }
 249                 else
 250                 {
 251                     msg_Err( p_input, "unknown ref type=%4.4s FIXME (send a bug report)", (char*)&p_rdrf->data.p_rdrf->i_ref_type );
 252                 }
 253             }
 254             vlc_object_release( p_playlist );
 255         }
 256         else
 257         {
 258             msg_Err( p_input, "can't find playlist" );
 259         }
 260     }
 261
 262     if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
 263     {
 264         if( !p_rmra )
 265         {
 266             msg_Err( p_input, "cannot find /moov/mvhd" );
 267             goto error;
 268         }
 269         else
 270         {
 271             msg_Warn( p_input, "cannot find /moov/mvhd (pure ref file)" );
 272             p_input->pf_demux = DemuxRef;
 273             return VLC_SUCCESS;
 274         }
 275     }
 276     else
 277     {
 278         p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
 279         p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
 280     }
 281
 282     if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
 283     {
 284         msg_Err( p_input, "cannot find any /moov/trak" );
 285         goto error;
 286     }
 287     msg_Dbg( p_input, "find %d track%c",
 288                         p_sys->i_tracks,
 289                         p_sys->i_tracks ? 's':' ' );
 290
 291     /*  create one program */
 292     vlc_mutex_lock( &p_input->stream.stream_lock );
 293     if( input_InitStream( p_input, 0 ) == -1)
 294     {
 295         vlc_mutex_unlock( &p_input->stream.stream_lock );
 296         msg_Err( p_input, "cannot init stream" );
 297         goto error;
 298     }
 299     if( p_sys->i_duration/p_sys->i_timescale > 0 )
 300     {
 301         p_input->stream.i_mux_rate =
 302             p_input->stream.p_selected_area->i_size / 50 /
 303             ( p_sys->i_duration / p_sys->i_timescale );
 304     }
 305     else
 306     {
 307         p_input->stream.i_mux_rate = 0;
 308     }
 309     vlc_mutex_unlock( &p_input->stream.stream_lock );
 310
 311
 312     /* allocate memory */
 313     p_sys->track = calloc( p_sys->i_tracks, sizeof( track_data_mp4_t ) );
 314     memset( p_sys->track, 0, p_sys->i_tracks * sizeof( track_data_mp4_t ) );
 315
 316     /* now process each track and extract all usefull informations */
 317     for( i = 0; i < p_sys->i_tracks; i++ )
 318     {
 319         p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
 320         MP4_TrackCreate( p_input, &p_sys->track[i], p_trak );
 321
 322         if( p_sys->track[i].b_ok )
 323         {
 324             char *psz_cat;
 325             switch( p_sys->track[i].fmt.i_cat )
 326             {
 327                 case( VIDEO_ES ):
 328                     psz_cat = "video";
 329                     break;
 330                 case( AUDIO_ES ):
 331                     psz_cat = "audio";
 332                     break;
 333                 default:
 334                     psz_cat = "unknown";
 335                     break;
 336             }
 337
 338             msg_Dbg( p_input, "adding track[Id 0x%x] %s (%s) language %s",
 339                             p_sys->track[i].i_track_ID,
 340                             psz_cat,
 341                             p_sys->track[i].b_enable ? "enable":"disable",
 342                             p_sys->track[i].fmt.psz_language ? p_sys->track[i].fmt.psz_language : "undef" );
 343         }
 344         else
 345         {
 346             msg_Dbg( p_input, "ignoring track[Id 0x%x]", p_sys->track[i].i_track_ID );
 347         }
 348
 349     }
 350     return VLC_SUCCESS;
 351
 352 error:
 353     if( p_sys->p_root )
 354     {
 355         MP4_BoxFree( p_input, p_sys->p_root );
 356     }
 357     free( p_sys );
 358     return VLC_EGENERIC;
 359 }
 360
 361 /*****************************************************************************
 362  * Demux: read packet and send them to decoders
 363  *****************************************************************************
 364  * TODO check for newly selected track (ie audio upt to now )
 365  *****************************************************************************/
 366 static int Demux( input_thread_t *p_input )
 367 {
 368     demux_sys_t *p_sys = p_input->p_demux_data;
 369     unsigned int i_track;
 370
 371
 372     unsigned int i_track_selected;
 373     vlc_bool_t   b_play_audio;
 374
 375     /* check for newly selected/unselected track */
 376     for( i_track = 0, i_track_selected = 0; i_track <  p_sys->i_tracks; i_track++ )
 377     {
 378 #define track   p_sys->track[i_track]
 379         if( track.b_selected && track.i_sample >= track.i_sample_count )
 380         {
 381             msg_Warn( p_input, "track[0x%x] will be disabled", track.i_track_ID );
 382             MP4_TrackUnselect( p_input, &track );
 383         }
 384         else if( track.b_ok )
 385         {
 386             vlc_bool_t b;
 387             es_out_Control( p_input->p_es_out, ES_OUT_GET_ES_STATE, track.p_es, &b );
 388
 389             if( track.b_selected && !b )
 390             {
 391                 MP4_TrackUnselect( p_input, &track );
 392             }
 393             else if( !track.b_selected && b)
 394             {
 395                 MP4_TrackSelect( p_input, &track, MP4_GetMoviePTS( p_sys ) );
 396             }
 397
 398             if( track.b_selected )
 399             {
 400                 i_track_selected++;
 401             }
 402         }
 403 #undef  track
 404     }
 405
 406     if( i_track_selected <= 0 )
 407     {
 408         msg_Warn( p_input, "no track selected, exiting..." );
 409         return( 0 );
 410     }
 411
 412     /* first wait for the good time to read a packet */
 413     input_ClockManageRef( p_input,
 414                           p_input->stream.p_selected_program,
 415                           p_sys->i_pcr );
 416
 417     /* update pcr XXX in mpeg scale so in 90000 unit/s */
 418     p_sys->i_pcr = MP4_GetMoviePTS( p_sys ) * 9 / 100;
 419
 420     /* we will read 100ms for each stream so ...*/
 421     p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
 422
 423     /* Check if we need to send the audio data to decoder */
 424     b_play_audio = !p_input->stream.control.b_mute;
 425
 426     for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
 427     {
 428 #define track p_sys->track[i_track]
 429         if( !track.b_ok ||
 430             !track.b_selected ||
 431             MP4_GetTrackPTS( &track ) >= MP4_GetMoviePTS( p_sys ) )
 432         {
 433             continue;
 434         }
 435
 436         while( MP4_GetTrackPTS( &track ) < MP4_GetMoviePTS( p_sys ) )
 437         {
 438
 439             if( ( !b_play_audio && track.fmt.i_cat == AUDIO_ES ) ||
 440                 MP4_TrackSampleSize( &track ) <= 0 )
 441             {
 442                 if( MP4_TrackNextSample( p_input, &track ) )
 443                 {
 444                     break;
 445                 }
 446             }
 447             else
 448             {
 449                 block_t *p_block;
 450
 451                 /* go,go go ! */
 452                 if( stream_Seek( p_input->s, MP4_GetTrackPos( &track ) ) )
 453                 {
 454                     msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", track.i_track_ID );
 455                     MP4_TrackUnselect( p_input, &track );
 456                     break;
 457                 }
 458
 459                 /* now read pes */
 460                 if( ( p_block = stream_Block( p_input->s,
 461                                               MP4_TrackSampleSize( &track ) ) ) == NULL )
 462                 {
 463                     msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", track.i_track_ID );
 464                     MP4_TrackUnselect( p_input, &track );
 465                     break;
 466                 }
 467
 468                 if( track.b_drms && track.p_drms )
 469                 {
 470                     drms_decrypt( track.p_drms,
 471                                   (uint32_t *)p_block->p_buffer,
 472                                   p_block->i_buffer );
 473                 }
 474
 475                 if( track.fmt.i_cat == VIDEO_ES )
 476                 {
 477                     /* FIXME sometime we can calculate PTS */
 478                     p_block->i_pts = 0;
 479                     p_block->i_dts =
 480                         input_ClockGetTS( p_input,
 481                                           p_input->stream.p_selected_program,
 482                                           MP4_GetTrackPTS( &track ) * 9/100 );
 483                 }
 484                 else
 485                 {
 486                     p_block->i_pts =
 487                     p_block->i_dts =
 488                         input_ClockGetTS( p_input,
 489                                           p_input->stream.p_selected_program,
 490                                           MP4_GetTrackPTS( &track ) * 9/100 );
 491                 }
 492
 493                 if( !track.b_drms || ( track.b_drms && track.p_drms ) )
 494                 {
 495                     es_out_Send( p_input->p_es_out, track.p_es, p_block );
 496                 }
 497
 498                 if( MP4_TrackNextSample( p_input, &track ) )
 499                 {
 500                     break;
 501                 }
 502             }
 503         }
 504 #undef track
 505     }
 506
 507     return( 1 );
 508 }
 509 /*****************************************************************************
 510  * Seek: Got to i_date
 511  ******************************************************************************/
 512 static int   Seek     ( input_thread_t *p_input, mtime_t i_date )
 513 {
 514     demux_sys_t *p_sys = p_input->p_demux_data;
 515     unsigned int i_track;
 516     /* First update update global time */
 517     p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
 518     p_sys->i_pcr  = i_date* 9 / 100;
 519
 520     /* Now for each stream try to go to this time */
 521     for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
 522     {
 523 #define track p_sys->track[i_track]
 524         if( track.b_ok && track.b_selected )
 525         {
 526             MP4_TrackSeek( p_input, &track, i_date );
 527         }
 528 #undef  track
 529     }
 530     return( 1 );
 531 }
 532
 533 /*****************************************************************************
 534  * Control:
 535  *****************************************************************************/
 536 static int   Control  ( input_thread_t *p_input, int i_query, va_list args )
 537 {
 538     demux_sys_t *p_sys = p_input->p_demux_data;
 539
 540     double   f, *pf;
 541     int64_t i64, *pi64;
 542
 543     switch( i_query )
 544     {
 545         case DEMUX_GET_POSITION:
 546             pf = (double*)va_arg( args, double * );
 547             if( p_sys->i_duration > 0 )
 548             {
 549                 *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
 550             }
 551             else
 552             {
 553                 *pf = 0.0;
 554             }
 555             return VLC_SUCCESS;
 556
 557         case DEMUX_SET_POSITION:
 558             f = (double)va_arg( args, double );
 559             i64 = (int64_t)( f *
 560                              (double)1000000 *
 561                              (double)p_sys->i_duration /
 562                              (double)p_sys->i_timescale );
 563             return Seek( p_input, i64 );
 564
 565         case DEMUX_GET_TIME:
 566             pi64 = (int64_t*)va_arg( args, int64_t * );
 567             *pi64 = (mtime_t)1000000 *
 568                     (mtime_t)p_sys->i_time /
 569                     (mtime_t)p_sys->i_timescale;
 570             return VLC_SUCCESS;
 571
 572         case DEMUX_SET_TIME:
 573             i64 = (int64_t)va_arg( args, int64_t );
 574             return Seek( p_input, i64 );
 575
 576         case DEMUX_GET_LENGTH:
 577             pi64 = (int64_t*)va_arg( args, int64_t * );
 578             *pi64 = (mtime_t)1000000 *
 579                     (mtime_t)p_sys->i_duration /
 580                     (mtime_t)p_sys->i_timescale;
 581             return VLC_SUCCESS;
 582         case DEMUX_GET_FPS:
 583             msg_Warn( p_input, "DEMUX_GET_FPS unimplemented !!" );
 584             return VLC_EGENERIC;
 585         default:
 586             msg_Err( p_input, "control query unimplemented !!!" );
 587             return demux_vaControlDefault( p_input, i_query, args );
 588     }
 589 }
 590
 591 /*****************************************************************************
 592  * Close: frees unused data
 593  *****************************************************************************/
 594 static void Close ( vlc_object_t * p_this )
 595 {
 596     unsigned int i_track;
 597     input_thread_t *  p_input = (input_thread_t *)p_this;
 598     demux_sys_t *p_sys = p_input->p_demux_data;
 599
 600     msg_Dbg( p_input, "freeing all memory" );
 601
 602     MP4_BoxFree( p_input, p_sys->p_root );
 603     for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
 604     {
 605         MP4_TrackDestroy( p_input, &p_sys->track[i_track] );
 606     }
 607     FREE( p_sys->track );
 608
 609     free( p_sys );
 610 }
 611
 612
 613
 614 /****************************************************************************
 615  * Local functions, specific to vlc
 616  ****************************************************************************/
 617
 618 /* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
 619 static int TrackCreateChunksIndex( input_thread_t *p_input,
 620                                    track_data_mp4_t *p_demux_track )
 621 {
 622     MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
 623     MP4_Box_t *p_stsc;
 624
 625     unsigned int i_chunk;
 626     unsigned int i_index, i_last;
 627
 628     if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
 629           !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
 630         ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
 631     {
 632         return( VLC_EGENERIC );
 633     }
 634
 635     p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
 636     if( !p_demux_track->i_chunk_count )
 637     {
 638         msg_Warn( p_input, "no chunk defined" );
 639         return( VLC_EGENERIC );
 640     }
 641     p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
 642                                    sizeof( chunk_data_mp4_t ) );
 643
 644     /* first we read chunk offset */
 645     for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
 646     {
 647         p_demux_track->chunk[i_chunk].i_offset =
 648                 p_co64->data.p_co64->i_chunk_offset[i_chunk];
 649     }
 650
 651     /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
 652         to be used for the sample XXX begin to 1
 653         We construct it begining at the end */
 654     i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
 655     i_index = p_stsc->data.p_stsc->i_entry_count;
 656     if( !i_index )
 657     {
 658         msg_Warn( p_input, "cannot read chunk table or table empty" );
 659         return( VLC_EGENERIC );
 660     }
 661
 662     while( i_index )
 663     {
 664         i_index--;
 665         for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
 666                 i_chunk < i_last; i_chunk++ )
 667         {
 668             p_demux_track->chunk[i_chunk].i_sample_description_index =
 669                     p_stsc->data.p_stsc->i_sample_description_index[i_index];
 670             p_demux_track->chunk[i_chunk].i_sample_count =
 671                     p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
 672         }
 673         i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
 674     }
 675
 676     p_demux_track->chunk[0].i_sample_first = 0;
 677     for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
 678     {
 679         p_demux_track->chunk[i_chunk].i_sample_first =
 680             p_demux_track->chunk[i_chunk-1].i_sample_first +
 681                 p_demux_track->chunk[i_chunk-1].i_sample_count;
 682     }
 683
 684     msg_Dbg( p_input,
 685              "track[Id 0x%x] read %d chunk",
 686              p_demux_track->i_track_ID,
 687             p_demux_track->i_chunk_count );
 688
 689     return( VLC_SUCCESS );
 690 }
 691 static int TrackCreateSamplesIndex( input_thread_t *p_input,
 692                                     track_data_mp4_t *p_demux_track )
 693 {
 694     MP4_Box_t *p_stts; /* makes mapping between sample and decoding time,
 695                           ctts make same mapping but for composition time,
 696                           not yet used and probably not usefull */
 697     MP4_Box_t *p_stsz; /* gives sample size of each samples, there is also stz2
 698                           that uses a compressed form FIXME make them in libmp4
 699                           as a unique type */
 700     /* TODO use also stss and stsh table for seeking */
 701     /* FIXME use edit table */
 702     int64_t i_sample;
 703     int64_t i_chunk;
 704
 705     int64_t i_index;
 706     int64_t i_index_sample_used;
 707
 708     int64_t i_last_dts;
 709
 710     p_stts = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
 711     p_stsz = MP4_BoxGet( p_demux_track->p_stbl, "stsz" ); /* FIXME and stz2 */
 712
 713     if( ( !p_stts )||( !p_stsz ) )
 714     {
 715         msg_Warn( p_input, "cannot read sample table" );
 716         return( VLC_EGENERIC );
 717     }
 718
 719     p_demux_track->i_sample_count = p_stsz->data.p_stsz->i_sample_count;
 720
 721
 722     /* for sample size, there are 2 case */
 723     if( p_stsz->data.p_stsz->i_sample_size )
 724     {
 725         /* 1: all sample have the same size, so no need to construct a table */
 726         p_demux_track->i_sample_size = p_stsz->data.p_stsz->i_sample_size;
 727         p_demux_track->p_sample_size = NULL;
 728     }
 729     else
 730     {
 731         /* 2: each sample can have a different size */
 732         p_demux_track->i_sample_size = 0;
 733         p_demux_track->p_sample_size =
 734             calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
 735
 736         for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
 737         {
 738             p_demux_track->p_sample_size[i_sample] =
 739                     p_stsz->data.p_stsz->i_entry_size[i_sample];
 740         }
 741     }
 742     /* we have extract all information from stsz,
 743         now use stts */
 744
 745     /* if we don't want to waste too much memory, we can't expand
 746        the box !, so each chunk will contain an "extract" of this table
 747        for fast research */
 748
 749     i_last_dts = 0;
 750     i_index = 0; i_index_sample_used =0;
 751
 752     /* create and init last data for each chunk */
 753     for(i_chunk = 0 ; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
 754     {
 755
 756         int64_t i_entry, i_sample_count, i;
 757         /* save last dts */
 758         p_demux_track->chunk[i_chunk].i_first_dts = i_last_dts;
 759     /* count how many entries needed for this chunk
 760        for p_sample_delta_dts and p_sample_count_dts */
 761
 762         i_sample_count = p_demux_track->chunk[i_chunk].i_sample_count;
 763
 764         i_entry = 0;
 765         while( i_sample_count > 0 )
 766         {
 767             i_sample_count -= p_stts->data.p_stts->i_sample_count[i_index+i_entry];
 768             if( i_entry == 0 )
 769             {
 770                 i_sample_count += i_index_sample_used; /* don't count already used sample
 771                                                    int this entry */
 772             }
 773             i_entry++;
 774         }
 775
 776         /* allocate them */
 777         p_demux_track->chunk[i_chunk].p_sample_count_dts =
 778             calloc( i_entry, sizeof( uint32_t ) );
 779         p_demux_track->chunk[i_chunk].p_sample_delta_dts =
 780             calloc( i_entry, sizeof( uint32_t ) );
 781
 782         /* now copy */
 783         i_sample_count = p_demux_track->chunk[i_chunk].i_sample_count;
 784         for( i = 0; i < i_entry; i++ )
 785         {
 786             int64_t i_used;
 787             int64_t i_rest;
 788
 789             i_rest = p_stts->data.p_stts->i_sample_count[i_index] - i_index_sample_used;
 790
 791             i_used = __MIN( i_rest, i_sample_count );
 792
 793             i_index_sample_used += i_used;
 794             i_sample_count -= i_used;
 795
 796             p_demux_track->chunk[i_chunk].p_sample_count_dts[i] = i_used;
 797
 798             p_demux_track->chunk[i_chunk].p_sample_delta_dts[i] =
 799                         p_stts->data.p_stts->i_sample_delta[i_index];
 800
 801             i_last_dts += i_used *
 802                     p_demux_track->chunk[i_chunk].p_sample_delta_dts[i];
 803
 804             if( i_index_sample_used >=
 805                              p_stts->data.p_stts->i_sample_count[i_index] )
 806             {
 807
 808                 i_index++;
 809                 i_index_sample_used = 0;
 810             }
 811         }
 812
 813     }
 814
 815     msg_Dbg( p_input,
 816              "track[Id 0x%x] read %d samples length:"I64Fd"s",
 817              p_demux_track->i_track_ID,
 818              p_demux_track->i_sample_count,
 819              i_last_dts / p_demux_track->i_timescale );
 820
 821     return( VLC_SUCCESS );
 822 }
 823
 824 /*
 825  * TrackCreateES:
 826  *  Create ES and PES to init decoder if needed, for a track starting at i_chunk
 827  */
 828 static int  TrackCreateES   ( input_thread_t   *p_input,
 829                               track_data_mp4_t *p_track,
 830                               unsigned int     i_chunk,
 831                               es_out_id_t      **pp_es )
 832 {
 833     MP4_Box_t   *p_sample;
 834     MP4_Box_t   *p_esds;
 835
 836     *pp_es = NULL;
 837
 838     if( !p_track->chunk[i_chunk].i_sample_description_index )
 839     {
 840         msg_Warn( p_input,
 841                   "invalid SampleEntry index (track[Id 0x%x])",
 842                   p_track->i_track_ID );
 843         return VLC_EGENERIC;
 844     }
 845
 846     p_sample = MP4_BoxGet(  p_track->p_stsd, "[%d]",
 847                 p_track->chunk[i_chunk].i_sample_description_index - 1 );
 848
 849     if( !p_sample || !p_sample->data.p_data )
 850     {
 851         msg_Warn( p_input,
 852                   "cannot find SampleEntry (track[Id 0x%x])",
 853                   p_track->i_track_ID );
 854         return( VLC_EGENERIC );
 855     }
 856
 857     p_track->p_sample = p_sample;
 858
 859     if( p_track->i_sample_size == 1 )
 860     {
 861         MP4_Box_data_sample_soun_t *p_soun;
 862
 863         p_soun = p_sample->data.p_sample_soun;
 864
 865         if( p_soun->i_qt_version == 0 )
 866         {
 867             switch( p_sample->i_type )
 868             {
 869                 case VLC_FOURCC( 'i', 'm', 'a', '4' ):
 870                     p_soun->i_qt_version = 1;
 871                     p_soun->i_sample_per_packet = 64;
 872                     p_soun->i_bytes_per_packet  = 34;
 873                     p_soun->i_bytes_per_frame   = 34 * p_soun->i_channelcount;
 874                     p_soun->i_bytes_per_sample  = 2;
 875                     break;
 876                 case VLC_FOURCC( 'M', 'A', 'C', '3' ):
 877                     p_soun->i_qt_version = 1;
 878                     p_soun->i_sample_per_packet = 6;
 879                     p_soun->i_bytes_per_packet  = 2;
 880                     p_soun->i_bytes_per_frame   = 2 * p_soun->i_channelcount;
 881                     p_soun->i_bytes_per_sample  = 2;
 882                     break;
 883                 case VLC_FOURCC( 'M', 'A', 'C', '6' ):
 884                     p_soun->i_qt_version = 1;
 885                     p_soun->i_sample_per_packet = 12;
 886                     p_soun->i_bytes_per_packet  = 2;
 887                     p_soun->i_bytes_per_frame   = 2 * p_soun->i_channelcount;
 888                     p_soun->i_bytes_per_sample  = 2;
 889                     break;
 890                 default:
 891                     break;
 892             }
 893
 894         }
 895         else if( p_soun->i_qt_version == 1 && p_soun->i_sample_per_packet <= 0 )
 896         {
 897             p_soun->i_qt_version = 0;
 898         }
 899     }
 900
 901
 902     /* It's a little ugly but .. there are special cases */
 903     switch( p_sample->i_type )
 904     {
 905         case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
 906         case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
 907             p_track->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 908             break;
 909         case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
 910             p_track->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 911             break;
 912         case( VLC_FOURCC( 's', '2', '6', '3' ) ):
 913             p_track->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '3' );
 914             break;
 915         default:
 916             p_track->fmt.i_codec = p_sample->i_type;
 917             break;
 918     }
 919
 920     /* now see if esds is present and if so create a data packet
 921         with decoder_specific_info  */
 922 #define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
 923     if( ( ( p_esds = MP4_BoxGet( p_sample, "esds" ) ) ||
 924           ( p_esds = MP4_BoxGet( p_sample, "wave/esds" ) ) )&&
 925         ( p_esds->data.p_esds )&&
 926         ( p_decconfig ) )
 927     {
 928         /* First update information based on i_objectTypeIndication */
 929         switch( p_decconfig->i_objectTypeIndication )
 930         {
 931             case( 0x20 ): /* MPEG4 VIDEO */
 932                 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','v' );
 933                 break;
 934             case( 0x40):
 935                 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
 936                 break;
 937             case( 0x60):
 938             case( 0x61):
 939             case( 0x62):
 940             case( 0x63):
 941             case( 0x64):
 942             case( 0x65): /* MPEG2 video */
 943                 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
 944                 break;
 945             /* Theses are MPEG2-AAC */
 946             case( 0x66): /* main profile */
 947             case( 0x67): /* Low complexity profile */
 948             case( 0x68): /* Scaleable Sampling rate profile */
 949                 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
 950                 break;
 951             /* true MPEG 2 audio */
 952             case( 0x69):
 953                 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
 954                 break;
 955             case( 0x6a): /* MPEG1 video */
 956                 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
 957                 break;
 958             case( 0x6b): /* MPEG1 audio */
 959                 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
 960                 break;
 961             case( 0x6c ): /* jpeg */
 962                 p_track->fmt.i_codec = VLC_FOURCC( 'j','p','e','g' );
 963                 break;
 964             default:
 965                 /* Unknown entry, but don't touch i_fourcc */
 966                 msg_Warn( p_input,
 967                           "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
 968                           p_decconfig->i_objectTypeIndication,
 969                           p_track->i_track_ID );
 970                 break;
 971         }
 972         p_track->fmt.i_extra = p_decconfig->i_decoder_specific_info_len;
 973         if( p_track->fmt.i_extra > 0 )
 974         {
 975             p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
 976             memcpy( p_track->fmt.p_extra, p_decconfig->p_decoder_specific_info,
 977                     p_track->fmt.i_extra );
 978         }
 979     }
 980     else
 981     {
 982         switch( p_sample->i_type )
 983         {
 984             /* qt decoder, send the complete chunk */
 985             case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
 986             case VLC_FOURCC( 'S', 'V', 'Q', '1' ):
 987             case VLC_FOURCC( 'V', 'P', '3', '1' ):
 988             case VLC_FOURCC( '3', 'I', 'V', '1' ):
 989             case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
 990                 p_track->fmt.i_extra =
 991                     p_sample->data.p_sample_vide->i_qt_image_description;
 992                 if( p_track->fmt.i_extra > 0 )
 993                 {
 994                     p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
 995                     memcpy( p_track->fmt.p_extra,
 996                             p_sample->data.p_sample_vide->p_qt_image_description,
 997                             p_track->fmt.i_extra);
 998                 }
 999                 break;
1000             case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
1001             case VLC_FOURCC( 'Q', 'D', 'M', '2' ):
1002             case VLC_FOURCC( 'Q', 'c', 'l', 'p' ):
1003             case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1004                 p_track->fmt.i_extra =
1005                     p_sample->data.p_sample_soun->i_qt_description;
1006                 if( p_track->fmt.i_extra > 0 )
1007                 {
1008                     p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1009                     memcpy( p_track->fmt.p_extra,
1010                             p_sample->data.p_sample_soun->p_qt_description,
1011                             p_track->fmt.i_extra);
1012                 }
1013                 break;
1014             default:
1015                 break;
1016         }
1017     }
1018
1019 #undef p_decconfig
1020
1021     /* some last initialisation */
1022     switch( p_track->fmt.i_cat )
1023     {
1024     case( VIDEO_ES ):
1025         p_track->fmt.video.i_width = p_sample->data.p_sample_vide->i_width;
1026         p_track->fmt.video.i_height = p_sample->data.p_sample_vide->i_height;
1027
1028         /* fall on display size */
1029         if( p_track->fmt.video.i_width <= 0 )
1030             p_track->fmt.video.i_width = p_track->i_width;
1031         if( p_track->fmt.video.i_height <= 0 )
1032             p_track->fmt.video.i_height = p_track->i_height;
1033
1034         /* Find out apect ratio from display size */
1035         if( p_track->i_width > 0 && p_track->i_height > 0 )
1036             p_track->fmt.video.i_aspect =
1037                 VOUT_ASPECT_FACTOR * p_track->i_width / p_track->i_height;
1038
1039         break;
1040
1041     case( AUDIO_ES ):
1042         p_track->fmt.audio.i_channels =
1043             p_sample->data.p_sample_soun->i_channelcount;
1044         p_track->fmt.audio.i_rate =
1045             p_sample->data.p_sample_soun->i_sampleratehi;
1046         p_track->fmt.i_bitrate = p_sample->data.p_sample_soun->i_channelcount *
1047             p_sample->data.p_sample_soun->i_sampleratehi *
1048                 p_sample->data.p_sample_soun->i_samplesize;
1049         p_track->fmt.audio.i_bitspersample =
1050             p_sample->data.p_sample_soun->i_samplesize;
1051         break;
1052
1053     default:
1054         break;
1055     }
1056
1057     *pp_es = es_out_Add( p_input->p_es_out, &p_track->fmt );
1058
1059     return VLC_SUCCESS;
1060 }
1061
1062 /* given a time it return sample/chunk */
1063 static int  TrackTimeToSampleChunk( input_thread_t *p_input,
1064                                     track_data_mp4_t *p_track,
1065                                     uint64_t i_start,
1066                                     uint32_t *pi_chunk,
1067                                     uint32_t *pi_sample )
1068 {
1069     MP4_Box_t    *p_stss;
1070     uint64_t     i_dts;
1071     unsigned int i_sample;
1072     unsigned int i_chunk;
1073     int          i_index;
1074
1075     /* convert absolute time to in timescale unit */
1076     i_start = i_start * (mtime_t)p_track->i_timescale / (mtime_t)1000000;
1077
1078     /* FIXME see if it's needed to check p_track->i_chunk_count */
1079     if( !p_track->b_ok || p_track->i_chunk_count == 0 )
1080     {
1081         return( VLC_EGENERIC );
1082     }
1083
1084     /* we start from sample 0/chunk 0, hope it won't take too much time */
1085     /* *** find good chunk *** */
1086     for( i_chunk = 0; ; i_chunk++ )
1087     {
1088         if( i_chunk + 1 >= p_track->i_chunk_count )
1089         {
1090             /* at the end and can't check if i_start in this chunk,
1091                it will be check while searching i_sample */
1092             i_chunk = p_track->i_chunk_count - 1;
1093             break;
1094         }
1095
1096         if( i_start >= p_track->chunk[i_chunk].i_first_dts &&
1097             i_start <  p_track->chunk[i_chunk + 1].i_first_dts )
1098         {
1099             break;
1100         }
1101     }
1102
1103     /* *** find sample in the chunk *** */
1104     i_sample = p_track->chunk[i_chunk].i_sample_first;
1105     i_dts    = p_track->chunk[i_chunk].i_first_dts;
1106     for( i_index = 0; i_sample < p_track->chunk[i_chunk].i_sample_count; )
1107     {
1108         if( i_dts +
1109             p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1110             p_track->chunk[i_chunk].p_sample_delta_dts[i_index] < i_start )
1111         {
1112             i_dts    +=
1113                 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1114                 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1115
1116             i_sample += p_track->chunk[i_chunk].p_sample_count_dts[i_index];
1117             i_index++;
1118         }
1119         else
1120         {
1121             if( p_track->chunk[i_chunk].p_sample_delta_dts[i_index] <= 0 )
1122             {
1123                 break;
1124             }
1125             i_sample += ( i_start - i_dts ) / p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1126             break;
1127         }
1128     }
1129
1130     if( i_sample >= p_track->i_sample_count )
1131     {
1132         msg_Warn( p_input,
1133                   "track[Id 0x%x] will be disabled (seeking too far) chunk=%d sample=%d",
1134                   p_track->i_track_ID, i_chunk, i_sample );
1135         return( VLC_EGENERIC );
1136     }
1137
1138
1139     /* *** Try to find nearest sync points *** */
1140     if( ( p_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
1141     {
1142         unsigned int i_index;
1143         msg_Dbg( p_input,
1144                     "track[Id 0x%x] using Sync Sample Box (stss)",
1145                     p_track->i_track_ID );
1146         for( i_index = 0; i_index < p_stss->data.p_stss->i_entry_count; i_index++ )
1147         {
1148             if( p_stss->data.p_stss->i_sample_number[i_index] >= i_sample )
1149             {
1150                 if( i_index > 0 )
1151                 {
1152                     msg_Dbg( p_input, "stts gives %d --> %d (sample number)",
1153                             i_sample,
1154                             p_stss->data.p_stss->i_sample_number[i_index-1] );
1155                     i_sample = p_stss->data.p_stss->i_sample_number[i_index-1];
1156                     /* new i_sample is less than old so i_chunk can only decreased */
1157                     while( i_chunk > 0 &&
1158                             i_sample < p_track->chunk[i_chunk].i_sample_first )
1159                     {
1160                         i_chunk--;
1161                     }
1162                 }
1163                 else
1164                 {
1165                     msg_Dbg( p_input, "stts gives %d --> %d (sample number)",
1166                             i_sample,
1167                             p_stss->data.p_stss->i_sample_number[i_index] );
1168                     i_sample = p_stss->data.p_stss->i_sample_number[i_index];
1169                     /* new i_sample is more than old so i_chunk can only increased */
1170                     while( i_chunk < p_track->i_chunk_count - 1 &&
1171                            i_sample >= p_track->chunk[i_chunk].i_sample_first +
1172                                                 p_track->chunk[i_chunk].i_sample_count )
1173                     {
1174                         i_chunk++;
1175                     }
1176                 }
1177                 break;
1178             }
1179         }
1180     }
1181     else
1182     {
1183         msg_Dbg( p_input,
1184                     "track[Id 0x%x] does not provide Sync Sample Box (stss)",
1185                     p_track->i_track_ID );
1186     }
1187
1188     if( pi_chunk  ) *pi_chunk  = i_chunk;
1189     if( pi_sample ) *pi_sample = i_sample;
1190     return( VLC_SUCCESS );
1191 }
1192
1193 static int  TrackGotoChunkSample( input_thread_t   *p_input,
1194                                   track_data_mp4_t *p_track,
1195                                   unsigned int     i_chunk,
1196                                   unsigned int     i_sample )
1197 {
1198     vlc_bool_t b_reselect = VLC_FALSE;
1199
1200     /* now see if actual es is ok */
1201     if( p_track->i_chunk < 0 ||
1202         p_track->i_chunk >= p_track->i_chunk_count ||
1203         p_track->chunk[p_track->i_chunk].i_sample_description_index !=
1204             p_track->chunk[i_chunk].i_sample_description_index )
1205     {
1206         msg_Warn( p_input, "Recreate ES" );
1207
1208         es_out_Control( p_input->p_es_out, ES_OUT_GET_ES_STATE, p_track->p_es, &b_reselect );
1209
1210         es_out_Del( p_input->p_es_out, p_track->p_es );
1211
1212         p_track->p_es = NULL;
1213
1214         if( TrackCreateES( p_input,
1215                            p_track, i_chunk,
1216                            &p_track->p_es ) )
1217         {
1218             msg_Err( p_input, "cannot create es for track[Id 0x%x]",
1219                      p_track->i_track_ID );
1220
1221             p_track->b_ok       = VLC_FALSE;
1222             p_track->b_selected = VLC_FALSE;
1223             return VLC_EGENERIC;
1224         }
1225     }
1226
1227     /* select again the new decoder */
1228     if( b_reselect )
1229     {
1230         es_out_Control( p_input->p_es_out, ES_OUT_SET_ES, p_track->p_es );
1231     }
1232
1233     p_track->i_chunk    = i_chunk;
1234     p_track->i_sample   = i_sample;
1235
1236     return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
1237 }
1238
1239 /****************************************************************************
1240  * MP4_TrackCreate:
1241  ****************************************************************************
1242  * Parse track information and create all needed data to run a track
1243  * If it succeed b_ok is set to 1 else to 0
1244  ****************************************************************************/
1245 static void MP4_TrackCreate( input_thread_t *p_input,
1246                              track_data_mp4_t *p_track,
1247                              MP4_Box_t  * p_box_trak )
1248 {
1249     MP4_Box_t *p_tkhd = MP4_BoxGet( p_box_trak, "tkhd" );
1250     MP4_Box_t *p_tref = MP4_BoxGet( p_box_trak, "tref" );
1251     MP4_Box_t *p_elst;
1252
1253     MP4_Box_t *p_mdhd;
1254     MP4_Box_t *p_hdlr;
1255
1256     MP4_Box_t *p_vmhd;
1257     MP4_Box_t *p_smhd;
1258
1259     MP4_Box_t *p_drms;
1260
1261     unsigned int i;
1262     char language[4];
1263
1264     /* hint track unsuported */
1265
1266     /* set default value (-> track unusable) */
1267     p_track->b_ok       = VLC_FALSE;
1268     p_track->b_enable   = VLC_FALSE;
1269     p_track->b_selected = VLC_FALSE;
1270
1271     es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
1272
1273     if( !p_tkhd )
1274     {
1275         return;
1276     }
1277
1278     /* do we launch this track by default ? */
1279     p_track->b_enable =
1280         ( ( p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED ) != 0 );
1281
1282     p_track->i_track_ID = p_tkhd->data.p_tkhd->i_track_ID;
1283     p_track->i_width = p_tkhd->data.p_tkhd->i_width / 65536;
1284     p_track->i_height = p_tkhd->data.p_tkhd->i_height / 65536;
1285
1286     if( ( p_elst = MP4_BoxGet( p_box_trak, "edts/elst" ) ) )
1287     {
1288 /*        msg_Warn( p_input, "unhandled box: edts --> FIXME" ); */
1289     }
1290
1291     if( p_tref )
1292     {
1293 /*        msg_Warn( p_input, "unhandled box: tref --> FIXME" ); */
1294     }
1295
1296     p_mdhd = MP4_BoxGet( p_box_trak, "mdia/mdhd" );
1297     p_hdlr = MP4_BoxGet( p_box_trak, "mdia/hdlr" );
1298
1299     if( ( !p_mdhd )||( !p_hdlr ) )
1300     {
1301         return;
1302     }
1303
1304     p_track->i_timescale = p_mdhd->data.p_mdhd->i_timescale;
1305
1306     for( i = 0; i < 3; i++ )
1307     {
1308         language[i] = p_mdhd->data.p_mdhd->i_language[i];
1309     }
1310     language[3] = '\0';
1311
1312     switch( p_hdlr->data.p_hdlr->i_handler_type )
1313     {
1314         case( FOURCC_soun ):
1315             if( !( p_smhd = MP4_BoxGet( p_box_trak, "mdia/minf/smhd" ) ) )
1316             {
1317                 return;
1318             }
1319             p_track->fmt.i_cat = AUDIO_ES;
1320             break;
1321
1322         case( FOURCC_vide ):
1323             if( !( p_vmhd = MP4_BoxGet( p_box_trak, "mdia/minf/vmhd" ) ) )
1324             {
1325                 return;
1326             }
1327             p_track->fmt.i_cat = VIDEO_ES;
1328             break;
1329
1330         default:
1331             return;
1332     }
1333 /*  TODO
1334     add support for:
1335     p_dinf = MP4_BoxGet( p_minf, "dinf" );
1336 */
1337     if( !( p_track->p_stbl = MP4_BoxGet( p_box_trak,"mdia/minf/stbl" ) ) ||
1338         !( p_track->p_stsd = MP4_BoxGet( p_box_trak,"mdia/minf/stbl/stsd") ) )
1339     {
1340         return;
1341     }
1342
1343     p_drms = MP4_BoxGet( p_track->p_stsd, "drms" );
1344     p_track->b_drms = p_drms != NULL;
1345     p_track->p_drms = p_track->b_drms ?
1346         p_drms->data.p_sample_soun->p_drms : NULL;
1347
1348     /* Set language */
1349     if( strcmp( language, "```" ) && strcmp( language, "und" ) )
1350     {
1351         p_track->fmt.psz_language = LanguageGetName( language );
1352     }
1353
1354     /* fxi i_timescale for AUDIO_ES with i_qt_version == 0 */
1355     if( p_track->fmt.i_cat == AUDIO_ES ) //&& p_track->i_sample_size == 1 )
1356     {
1357         MP4_Box_t *p_sample;
1358
1359         p_sample = MP4_BoxGet(  p_track->p_stsd, "[0]" );
1360         if( p_sample && p_sample->data.p_sample_soun)
1361         {
1362             MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1363             if( p_soun->i_qt_version == 0 &&
1364                 p_track->i_timescale != p_soun->i_sampleratehi )
1365             {
1366                 msg_Warn( p_input,
1367                           "i_timescale ("I64Fu") != i_sampleratehi (%u) with "
1368                           "qt_version == 0\n"
1369                           "Making both equal. (report any problem)",
1370                           p_track->i_timescale, p_soun->i_sampleratehi );
1371
1372                 if( p_soun->i_sampleratehi )
1373                     p_track->i_timescale = p_soun->i_sampleratehi;
1374                 else
1375                     p_soun->i_sampleratehi = p_track->i_timescale;
1376             }
1377         }
1378     }
1379
1380     /* Create chunk index table and sample index table */
1381     if( TrackCreateChunksIndex( p_input,p_track  ) ||
1382         TrackCreateSamplesIndex( p_input, p_track ) )
1383     {
1384         return; /* cannot create chunks index */
1385     }
1386
1387     p_track->i_chunk  = 0;
1388     p_track->i_sample = 0;
1389
1390     /* now create es */
1391     if( TrackCreateES( p_input,
1392                        p_track, p_track->i_chunk,
1393                        &p_track->p_es ) )
1394     {
1395         msg_Err( p_input, "cannot create es for track[Id 0x%x]",
1396                  p_track->i_track_ID );
1397         return;
1398     }
1399
1400 #if 0
1401     {
1402         int i;
1403         for( i = 0; i < p_track->i_chunk_count; i++ )
1404         {
1405             fprintf( stderr, "%-5d sample_count=%d pts=%lld\n", i, p_track->chunk[i].i_sample_count, p_track->chunk[i].i_first_dts );
1406
1407         }
1408     }
1409 #endif
1410     p_track->b_ok = VLC_TRUE;
1411 }
1412
1413 /****************************************************************************
1414  * MP4_TrackDestroy:
1415  ****************************************************************************
1416  * Destroy a track created by MP4_TrackCreate.
1417  ****************************************************************************/
1418 static void MP4_TrackDestroy( input_thread_t *p_input,
1419                               track_data_mp4_t *p_track )
1420 {
1421     unsigned int i_chunk;
1422
1423     p_track->b_ok = VLC_FALSE;
1424     p_track->b_enable   = VLC_FALSE;
1425     p_track->b_selected = VLC_FALSE;
1426
1427     es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
1428
1429     for( i_chunk = 0; i_chunk < p_track->i_chunk_count; i_chunk++ )
1430     {
1431         if( p_track->chunk )
1432         {
1433            FREE(p_track->chunk[i_chunk].p_sample_count_dts);
1434            FREE(p_track->chunk[i_chunk].p_sample_delta_dts );
1435         }
1436     }
1437     FREE( p_track->chunk );
1438
1439     if( !p_track->i_sample_size )
1440     {
1441         FREE( p_track->p_sample_size );
1442     }
1443 }
1444
1445 static int  MP4_TrackSelect ( input_thread_t    *p_input,
1446                               track_data_mp4_t  *p_track,
1447                               mtime_t           i_start )
1448 {
1449     uint32_t i_chunk;
1450     uint32_t i_sample;
1451
1452     if( !p_track->b_ok )
1453     {
1454         return( VLC_EGENERIC );
1455     }
1456
1457     if( p_track->b_selected )
1458     {
1459         msg_Warn( p_input,
1460                   "track[Id 0x%x] already selected",
1461                   p_track->i_track_ID );
1462         return( VLC_SUCCESS );
1463     }
1464
1465     if( TrackTimeToSampleChunk( p_input,
1466                                 p_track, i_start,
1467                                 &i_chunk, &i_sample ) )
1468     {
1469         msg_Warn( p_input,
1470                   "cannot select track[Id 0x%x]",
1471                   p_track->i_track_ID );
1472         return( VLC_EGENERIC );
1473     }
1474
1475     p_track->b_selected = VLC_TRUE;
1476
1477     if( TrackGotoChunkSample( p_input, p_track, i_chunk, i_sample ) )
1478     {
1479         p_track->b_selected = VLC_FALSE;
1480     }
1481     return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
1482 }
1483
1484 static void MP4_TrackUnselect(input_thread_t    *p_input,
1485                               track_data_mp4_t  *p_track )
1486 {
1487     if( !p_track->b_ok )
1488     {
1489         return;
1490     }
1491
1492     if( !p_track->b_selected )
1493     {
1494         msg_Warn( p_input,
1495                   "track[Id 0x%x] already unselected",
1496                   p_track->i_track_ID );
1497         return;
1498     }
1499     if( p_track->p_es )
1500     {
1501         es_out_Control( p_input->p_es_out, ES_OUT_SET_ES_STATE, p_track->p_es, VLC_FALSE );
1502     }
1503
1504     p_track->b_selected = VLC_FALSE;
1505 }
1506
1507 static int  MP4_TrackSeek   ( input_thread_t    *p_input,
1508                               track_data_mp4_t  *p_track,
1509                               mtime_t           i_start )
1510 {
1511     uint32_t i_chunk;
1512     uint32_t i_sample;
1513
1514     if( !p_track->b_ok )
1515     {
1516         return( VLC_EGENERIC );
1517     }
1518
1519     if( TrackTimeToSampleChunk( p_input,
1520                                 p_track, i_start,
1521                                 &i_chunk, &i_sample ) )
1522     {
1523         msg_Warn( p_input,
1524                   "cannot select track[Id 0x%x]",
1525                   p_track->i_track_ID );
1526         return( VLC_EGENERIC );
1527     }
1528
1529     p_track->b_selected = VLC_TRUE;
1530
1531     TrackGotoChunkSample( p_input, p_track, i_chunk, i_sample );
1532
1533     return( p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC );
1534 }
1535
1536
1537
1538
1539
1540 /*
1541  * 3 types: for audio
1542  *
1543  */
1544 #define QT_V0_MAX_SAMPLES    1500
1545 static int  MP4_TrackSampleSize( track_data_mp4_t   *p_track )
1546 {
1547     int i_size;
1548     MP4_Box_data_sample_soun_t *p_soun;
1549
1550     if( p_track->i_sample_size == 0 )
1551     {
1552         /* most simple case */
1553         return( p_track->p_sample_size[p_track->i_sample] );
1554     }
1555     if( p_track->fmt.i_cat != AUDIO_ES )
1556     {
1557         return( p_track->i_sample_size );
1558     }
1559
1560     if( p_track->i_sample_size != 1 )
1561     {
1562         //msg_Warn( p_input, "SampleSize != 1" );
1563         return( p_track->i_sample_size );
1564     }
1565
1566     p_soun = p_track->p_sample->data.p_sample_soun;
1567
1568     if( p_soun->i_qt_version == 1 )
1569     {
1570         i_size = p_track->chunk[p_track->i_chunk].i_sample_count / p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
1571     }
1572     else
1573     {
1574         /* FIXME */
1575         int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count -
1576                 ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first );
1577         if( i_samples > QT_V0_MAX_SAMPLES )
1578         {
1579             i_samples = QT_V0_MAX_SAMPLES;
1580         }
1581         i_size = i_samples * p_soun->i_channelcount * p_soun->i_samplesize / 8;
1582     }
1583
1584     //fprintf( stderr, "size=%d\n", i_size );
1585     return( i_size );
1586 }
1587
1588
1589 static uint64_t MP4_GetTrackPos( track_data_mp4_t *p_track )
1590 {
1591     unsigned int i_sample;
1592     uint64_t i_pos;
1593
1594
1595     i_pos = p_track->chunk[p_track->i_chunk].i_offset;
1596
1597     if( p_track->i_sample_size )
1598     {
1599         MP4_Box_data_sample_soun_t *p_soun = p_track->p_sample->data.p_sample_soun;
1600
1601         if( p_soun->i_qt_version == 0 )
1602         {
1603             i_pos += ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first ) *
1604                         p_soun->i_channelcount * p_soun->i_samplesize / 8;
1605         }
1606         else
1607         {
1608             /* we read chunk by chunk */
1609             i_pos += 0;
1610         }
1611     }
1612     else
1613     {
1614         for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
1615                 i_sample < p_track->i_sample; i_sample++ )
1616         {
1617             i_pos += p_track->p_sample_size[i_sample];
1618         }
1619
1620     }
1621     return( i_pos );
1622 }
1623
1624 static int  MP4_TrackNextSample( input_thread_t     *p_input,
1625                                  track_data_mp4_t   *p_track )
1626 {
1627
1628     if( p_track->fmt.i_cat == AUDIO_ES &&
1629         p_track->i_sample_size != 0 )
1630     {
1631         MP4_Box_data_sample_soun_t *p_soun;
1632
1633         p_soun = p_track->p_sample->data.p_sample_soun;
1634
1635         if( p_soun->i_qt_version == 1 )
1636         {
1637             /* chunk by chunk */
1638             p_track->i_sample =
1639                 p_track->chunk[p_track->i_chunk].i_sample_first +
1640                 p_track->chunk[p_track->i_chunk].i_sample_count;
1641         }
1642         else
1643         {
1644             /* FIXME */
1645             p_track->i_sample += QT_V0_MAX_SAMPLES;
1646             if( p_track->i_sample > p_track->chunk[p_track->i_chunk].i_sample_first + p_track->chunk[p_track->i_chunk].i_sample_count )
1647             {
1648                 p_track->i_sample =
1649                     p_track->chunk[p_track->i_chunk].i_sample_first +
1650                     p_track->chunk[p_track->i_chunk].i_sample_count;
1651             }
1652         }
1653     }
1654     else
1655     {
1656         p_track->i_sample++;
1657     }
1658
1659     if( p_track->i_sample >= p_track->i_sample_count )
1660     {
1661         /* we have reach end of the track so free decoder stuff */
1662         msg_Warn( p_input, "track[0x%x] will be disabled", p_track->i_track_ID );
1663         MP4_TrackUnselect( p_input, p_track );
1664         return( VLC_EGENERIC );
1665     }
1666
1667     /* Have we changed chunk ? */
1668     if( p_track->i_sample >=
1669             p_track->chunk[p_track->i_chunk].i_sample_first +
1670             p_track->chunk[p_track->i_chunk].i_sample_count )
1671     {
1672         if( TrackGotoChunkSample( p_input,
1673                                   p_track,
1674                                   p_track->i_chunk + 1,
1675                                   p_track->i_sample ) )
1676         {
1677             msg_Warn( p_input, "track[0x%x] will be disabled (cannot restart decoder)", p_track->i_track_ID );
1678             MP4_TrackUnselect( p_input, p_track );
1679             return( VLC_EGENERIC );
1680         }
1681     }
1682
1683     return( VLC_SUCCESS );
1684 }
1685
1686
1687 static char *LanguageGetName( const char *psz_code )
1688 {
1689     const iso639_lang_t *pl;
1690
1691     pl = GetLang_2B( psz_code );
1692     if( !strcmp( pl->psz_iso639_1, "??" ) )
1693     {
1694         pl = GetLang_2T( psz_code );
1695     }
1696
1697     if( !strcmp( pl->psz_iso639_1, "??" ) )
1698     {
1699        return strdup( psz_code );
1700     }
1701
1702     if( *pl->psz_native_name )
1703     {
1704         return strdup( pl->psz_native_name );
1705     }
1706     return strdup( pl->psz_eng_name );
1707 }
1708