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

   1 /*****************************************************************************
   2  * real.c: Real demuxer.
   3  *****************************************************************************
   4  * Copyright (C) 2004, 2006-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /**
  25  * Status of this demuxer:
  26  * Real Media format
  27  * -----------------
  28  *
  29  * version v3 w/ 14_4/lpcJ is ok.
  30  * version v4/5: - atrac3 is ok.
  31  *               - cook is ok.
  32  *               - raac, racp are ok.
  33  *               - dnet is twisted "The byte order of the data is reversed
  34  *                                  from standard AC3"
  35  *               - 28_8 seem problematic.
  36  *               - sipr should be fine, but our decoder suxx :)
  37  *               - ralf is unsupported, but hardly any sample exist.
  38  *               - mp3 is unsupported, one sample exists...
  39  *
  40  * Real Audio Only
  41  * ---------------
  42  * Not supported...
  43  */
  44
  45 /*****************************************************************************
  46  * Preamble
  47  *****************************************************************************/
  48 #include <vlc/vlc.h>
  49
  50
  51 #include <vlc_demux.h>
  52 #include <vlc_charset.h>
  53 #include <vlc_meta.h>
  54
  55 /*****************************************************************************
  56  * Module descriptor
  57  *****************************************************************************/
  58 static int  Open    ( vlc_object_t * );
  59 static void Close  ( vlc_object_t * );
  60
  61 vlc_module_begin();
  62     set_description( _("Real demuxer" ) );
  63     set_capability( "demux2", 15 );
  64     set_category( CAT_INPUT );
  65     set_subcategory( SUBCAT_INPUT_DEMUX );
  66     set_callbacks( Open, Close );
  67     add_shortcut( "real" );
  68     add_shortcut( "rm" );
  69 vlc_module_end();
  70
  71 /*****************************************************************************
  72  * Local prototypes
  73  *****************************************************************************/
  74
  75 typedef struct
  76 {
  77     int         i_id;
  78     es_format_t fmt;
  79
  80     es_out_id_t *p_es;
  81
  82     int         i_frame;
  83     block_t     *p_frame;
  84
  85     int         i_subpacket_h;
  86     int         i_subpacket_size;
  87     int         i_coded_frame_size;
  88     int         i_frame_size;
  89
  90     int         i_subpacket;
  91     int         i_subpackets;
  92     block_t     **p_subpackets;
  93     int         i_out_subpacket;
  94
  95 } real_track_t;
  96
  97 struct demux_sys_t
  98 {
  99     int64_t  i_data_offset;
 100     int64_t  i_data_size;
 101     uint32_t i_data_packets_count;
 102     uint32_t i_data_packets;
 103     int64_t  i_data_offset_next;
 104
 105     int  i_our_duration;
 106     int  i_mux_rate;
 107
 108     char* psz_title;
 109     char* psz_artist;
 110     char* psz_copyright;
 111     char* psz_description;
 112
 113     int          i_track;
 114     real_track_t **track;
 115
 116     uint8_t buffer[65536];
 117
 118     int64_t     i_pcr;
 119 };
 120
 121 static int Demux( demux_t *p_demux );
 122 static int Control( demux_t *p_demux, int i_query, va_list args );
 123
 124 static int HeaderRead( demux_t *p_demux );
 125 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num );
 126
 127 // Map flavour to bytes per second
 128 static int sipr_fl2bps[4] = {813, 1062, 625, 2000}; // 6.5, 8.5, 5, 16 kbit per second
 129
 130 /*****************************************************************************
 131  * Open
 132  *****************************************************************************/
 133 static int Open( vlc_object_t *p_this )
 134 {
 135     demux_t     *p_demux = (demux_t*)p_this;
 136     demux_sys_t *p_sys;
 137
 138     const uint8_t *p_peek;
 139
 140     if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return VLC_EGENERIC;
 141     if( memcmp( p_peek, ".RMF", 4 ) ) return VLC_EGENERIC;
 142
 143     /* Fill p_demux field */
 144     p_demux->pf_demux = Demux;
 145     p_demux->pf_control = Control;
 146     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
 147     memset( p_sys, 0, sizeof( demux_sys_t ) );
 148     p_sys->i_data_offset = 0;
 149     p_sys->i_track = 0;
 150     p_sys->track   = NULL;
 151     p_sys->i_pcr   = 1;
 152
 153
 154     /* Parse the headers */
 155     if( HeaderRead( p_demux ) )
 156     {
 157         int i;
 158         msg_Err( p_demux, "invalid header" );
 159         for( i = 0; i < p_sys->i_track; i++ )
 160         {
 161             real_track_t *tk = p_sys->track[i];
 162
 163             if( tk->p_es )
 164             {
 165                 es_out_Del( p_demux->out, tk->p_es );
 166             }
 167             free( tk );
 168         }
 169         if( p_sys->i_track > 0 )
 170         {
 171             free( p_sys->track );
 172         }
 173         free( p_sys );
 174         return VLC_EGENERIC;
 175     }
 176
 177     return VLC_SUCCESS;
 178 }
 179
 180 /*****************************************************************************
 181  * Close
 182  *****************************************************************************/
 183 static void Close( vlc_object_t *p_this )
 184 {
 185     demux_t *p_demux = (demux_t*)p_this;
 186     demux_sys_t *p_sys = p_demux->p_sys;
 187     int i;
 188
 189     for( i = 0; i < p_sys->i_track; i++ )
 190     {
 191         real_track_t *tk = p_sys->track[i];
 192         int j = tk->i_subpackets;
 193
 194         if( tk->p_frame ) block_Release( tk->p_frame );
 195         es_format_Clean( &tk->fmt );
 196
 197         while(  j-- )
 198         {
 199             if( tk->p_subpackets[ j ] )
 200                 block_Release( tk->p_subpackets[ j ] );
 201         }
 202         if( tk->i_subpackets ) free( tk->p_subpackets );
 203
 204         free( tk );
 205     }
 206
 207     if( p_sys->psz_title ) free( p_sys->psz_title );
 208     if( p_sys->psz_artist ) free( p_sys->psz_artist );
 209     if( p_sys->psz_copyright ) free( p_sys->psz_copyright );
 210     if( p_sys->psz_description ) free( p_sys->psz_description );
 211
 212     if( p_sys->i_track > 0 ) free( p_sys->track );
 213     free( p_sys );
 214 }
 215
 216
 217 /*****************************************************************************
 218  * Demux:
 219  *****************************************************************************/
 220 static int Demux( demux_t *p_demux )
 221 {
 222     demux_sys_t *p_sys = p_demux->p_sys;
 223     uint8_t     header[18];
 224     int         i_size, i_id, i_flags, i;
 225     int64_t     i_pts;
 226     real_track_t *tk = NULL;
 227     vlc_bool_t  b_selected;
 228
 229     if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
 230         p_sys->i_data_packets_count )
 231     {
 232         if( stream_Read( p_demux->s, header, 18 ) < 18 )
 233         {
 234             return 0;
 235         }
 236         if( strncmp( (char *)header, "DATA", 4 ) )
 237         {
 238             return 0;
 239         }
 240         p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
 241         p_sys->i_data_size   = GetDWBE( &header[4] );
 242         p_sys->i_data_packets_count = GetDWBE( &header[10] );
 243         p_sys->i_data_packets = 0;
 244         p_sys->i_data_offset_next = GetDWBE( &header[14] );
 245
 246         msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
 247                  p_sys->i_data_packets_count,
 248                  (uint32_t)p_sys->i_data_offset_next );
 249     }
 250
 251     if( stream_Read( p_demux->s, header, 12 ) < 12 ) return 0;
 252
 253     i_size = GetWBE( &header[2] ) - 12;
 254     i_id   = GetWBE( &header[4] );
 255     i_pts  = 1000 * GetDWBE( &header[6] );
 256     i_pts += 1000; /* Avoid 0 pts */
 257     i_flags= header[11]; /* flags 0x02 -> keyframe */
 258
 259 #if 0
 260     msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
 261              p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
 262 #endif
 263
 264     p_sys->i_data_packets++;
 265
 266     stream_Read( p_demux->s, p_sys->buffer, i_size );
 267
 268     for( i = 0; i < p_sys->i_track; i++ )
 269     {
 270         if( p_sys->track[i]->i_id == i_id ) tk = p_sys->track[i];
 271     }
 272
 273     if( tk == NULL )
 274     {
 275         msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
 276         return 1;
 277     }
 278     es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
 279
 280     if( tk->fmt.i_cat == VIDEO_ES && b_selected )
 281     {
 282         uint8_t *p = p_sys->buffer;
 283
 284         while( p < &p_sys->buffer[i_size - 2] )
 285         {
 286             uint8_t h = *p++;
 287             int     i_len = 0;
 288             int     i_copy;
 289             int     i_subseq = 0;
 290             int     i_seqnum = 0;
 291             int     i_offset = 0;
 292
 293             if( (h&0xc0) == 0x40 )
 294             {
 295                 /* Short header */
 296                 p++;
 297                 i_len = &p_sys->buffer[i_size] - p;
 298             }
 299             else
 300             {
 301                 if( (h&0x40) == 0 )
 302                 {
 303                     i_subseq = (*p++)&0x7f;
 304                 }
 305                 i_len = (p[0] << 8)|p[1]; p += 2;
 306                 if( (i_len&0xc000) == 0 )
 307                 {
 308                     i_len <<= 16;
 309                     i_len |= (p[0] << 8)|p[1]; p += 2;
 310                     i_len &= 0x3fffffff;
 311                 }
 312                 else
 313                 {
 314                     i_len &= 0x3fff;
 315                 }
 316
 317                 i_offset = (p[0] << 8)|p[1]; p += 2;
 318                 if( (i_offset&0xc000) == 0 )
 319                 {
 320                     i_offset <<= 16;
 321                     i_offset |= (p[0] << 8)|p[1]; p += 2;
 322                     i_offset &= 0x3fffffff;
 323                 }
 324                 else
 325                 {
 326                     i_offset &= 0x3fff;
 327                 }
 328                 i_seqnum = *p++;
 329             }
 330
 331             i_copy = i_len - i_offset;
 332             if( i_copy > &p_sys->buffer[i_size] - p )
 333             {
 334                 i_copy = &p_sys->buffer[i_size] - p;
 335             }
 336             else if( i_copy < 0 )
 337             {
 338                 break;
 339             }
 340
 341             msg_Dbg( p_demux, "    - len=%d offset=%d size=%d subseq=%d seqnum=%d",
 342                      i_len, i_offset, i_copy, i_subseq, i_seqnum );
 343
 344             if( (h&0xc0) == 0x80 )
 345             {
 346                 /* last fragment -> fixes */
 347                 i_copy = i_offset;
 348                 i_offset = i_len - i_copy;
 349                 msg_Dbg( p_demux, "last fixing copy=%d offset=%d",
 350                          i_copy, i_offset );
 351             }
 352
 353             if( tk->p_frame &&
 354                 ( tk->p_frame->i_dts != i_pts ||
 355                   tk->i_frame != i_len ) )
 356             {
 357                 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
 358
 359                 if( p_sys->i_pcr < tk->p_frame->i_dts )
 360                 {
 361                     p_sys->i_pcr = tk->p_frame->i_dts;
 362
 363                     es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 364                                     (int64_t)p_sys->i_pcr );
 365                 }
 366                 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
 367
 368                 tk->i_frame = 0;
 369                 tk->p_frame = NULL;
 370             }
 371
 372             if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && !tk->p_frame )
 373             {
 374                 /* no fragment */
 375                 i_len = i_copy;
 376                 i_offset = 0;
 377             }
 378
 379
 380             if( tk->p_frame == NULL )
 381             {
 382                 msg_Dbg( p_demux, "new frame size=%d", i_len );
 383                 tk->i_frame = i_len;
 384                 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
 385                 {
 386                     return -1;
 387                 }
 388                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
 389                 tk->p_frame->i_dts = i_pts;
 390                 tk->p_frame->i_pts = i_pts;
 391
 392                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
 393                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0;      /* chunk counts */
 394             }
 395
 396             if( i_offset < tk->i_frame)
 397             {
 398                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
 399
 400                 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d",
 401                          i_ck, i_offset, i_copy );
 402
 403                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
 404
 405                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 406             }
 407
 408             p += i_copy;
 409
 410             if( (h&0xc0) != 0x80 )
 411             {
 412                 break;
 413             }
 414
 415 #if 0
 416             if( tk->p_frame )
 417             {
 418                 /* append data */
 419                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
 420
 421                 if( (h&0xc0) == 0x80 )
 422                 {
 423                     /* last fragment */
 424                     i_copy = i_offset;
 425                     i_offset = i_len - i_offset;
 426
 427                     ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
 428                     memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
 429                     p += i_copy;
 430
 431                     if( p_sys->i_pcr < tk->p_frame->i_dts )
 432                     {
 433                         p_sys->i_pcr = tk->p_frame->i_dts;
 434                         es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 435                                         (int64_t)p_sys->i_pcr );
 436                     }
 437                     es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
 438
 439                     tk->i_frame = 0;
 440                     tk->p_frame = NULL;
 441
 442                     continue;
 443                 }
 444
 445                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
 446                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 447                 break;
 448             }
 449
 450             if( (h&0xc0) != 0x00 )
 451             {
 452                 block_t *p_frame;
 453
 454                 /* not fragmented */
 455                 if( !( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) )
 456                 {
 457                     return -1;
 458                 }
 459                 p_frame->i_dts = i_pts;
 460                 p_frame->i_pts = i_pts;
 461
 462                 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
 463                 ((uint32_t*)p_frame->p_buffer)[1] = 1;
 464                 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
 465                 memcpy( &p_frame->p_buffer[8], p, i_copy );
 466
 467                 p += i_copy;
 468
 469                 if( p_sys->i_pcr < p_frame->i_dts )
 470                 {
 471                     p_sys->i_pcr = p_frame->i_dts;
 472                     es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 473                                     (int64_t)p_sys->i_pcr );
 474                 }
 475                 es_out_Send( p_demux->out, tk->p_es, p_frame );
 476             }
 477             else
 478             {
 479                 /* First fragment */
 480                 tk->i_frame = i_len;
 481                 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
 482                 {
 483                     return -1;
 484                 }
 485                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
 486                 tk->p_frame->i_dts = i_pts;
 487                 tk->p_frame->i_pts = i_pts;
 488
 489                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
 490                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1;      /* chunk counts */
 491                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
 492                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 493
 494                 break;
 495             }
 496 #endif
 497         }
 498     }
 499     else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
 500     {
 501         /* Set PCR */
 502         if( p_sys->i_pcr < i_pts )
 503         {
 504             p_sys->i_pcr = i_pts;
 505             es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 506                             (int64_t)p_sys->i_pcr );
 507         }
 508
 509         if( tk->fmt.i_codec == VLC_FOURCC( 'm','p','4','a' ) )
 510         {
 511             int     i_sub = (p_sys->buffer[1] >> 4)&0x0f;
 512             uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
 513
 514             int i;
 515             for( i = 0; i < i_sub; i++ )
 516             {
 517                 int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
 518                 block_t *p_block = block_New( p_demux, i_sub_size );
 519                 if( p_block )
 520                 {
 521                     memcpy( p_block->p_buffer, p_sub, i_sub_size );
 522                     p_sub += i_sub_size;
 523
 524                     p_block->i_dts =
 525                     p_block->i_pts = ( i == 0 ? i_pts : 0 );
 526
 527                     es_out_Send( p_demux->out, tk->p_es, p_block );
 528                 }
 529             }
 530         }
 531         else if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
 532                  tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c') ||
 533                  tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r') ||
 534                  tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8') )
 535         {
 536             uint8_t *p_buf = p_sys->buffer;
 537             int y = tk->i_subpacket / ( tk->i_frame_size /tk->i_subpacket_size);
 538             int i_index, i;
 539
 540             /* Sanity check */
 541             if( i_flags & 2 ) y = tk->i_subpacket = 0;
 542
 543             if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
 544                 tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c' ))
 545             for( i = 0; i < tk->i_frame_size / tk->i_subpacket_size; i++ )
 546             {
 547                 block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
 548                 memcpy( p_block->p_buffer, p_buf, tk->i_subpacket_size );
 549                 p_buf += tk->i_subpacket_size;
 550
 551                 i_index = tk->i_subpacket_h * i +
 552                     ((tk->i_subpacket_h + 1) / 2) * (y&1) + (y>>1);
 553
 554                 p_block->i_dts = p_block->i_pts = i_pts;
 555                 tk->p_subpackets[i_index] = p_block;
 556                 tk->i_subpacket++;
 557             }
 558
 559             if( tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8' ) ||
 560                 tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r' ) )
 561             for( i = 0; i < tk->i_subpacket_h / 2; i++ )
 562             {
 563                 block_t *p_block = block_New( p_demux, tk->i_coded_frame_size);
 564                 memcpy( p_block->p_buffer, p_buf, tk->i_coded_frame_size );
 565                 p_buf += tk->i_coded_frame_size;
 566
 567                 i_index = (i * 2 * tk->i_frame_size) /
 568                     tk->i_coded_frame_size + y;
 569
 570                 p_block->i_dts = p_block->i_pts = i_pts;
 571                 tk->p_subpackets[i_index] = p_block;
 572                 tk->i_subpacket++;
 573             }
 574
 575             while( tk->i_out_subpacket != tk->i_subpackets &&
 576                    tk->p_subpackets[tk->i_out_subpacket] )
 577             {
 578                 block_t *p_block = tk->p_subpackets[tk->i_out_subpacket];
 579                 tk->p_subpackets[tk->i_out_subpacket] = 0;
 580
 581                 if( tk->i_out_subpacket ) p_block->i_dts = p_block->i_pts = 0;
 582                 es_out_Send( p_demux->out, tk->p_es, p_block );
 583
 584                 tk->i_out_subpacket++;
 585             }
 586
 587             if( tk->i_subpacket == tk->i_subpackets &&
 588                 tk->i_out_subpacket != tk->i_subpackets )
 589             {
 590                 msg_Warn( p_demux, "i_subpacket != i_out_subpacket, "
 591                           "this shouldn't happen" );
 592             }
 593
 594             if( tk->i_subpacket == tk->i_subpackets )
 595             {
 596                 tk->i_subpacket = 0;
 597                 tk->i_out_subpacket = 0;
 598             }
 599         }
 600         else
 601         {
 602             block_t *p_block = block_New( p_demux, i_size );
 603
 604             if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
 605             {
 606                 uint8_t *src = p_sys->buffer;
 607                 uint8_t *dst = p_block->p_buffer;
 608
 609                 /* byte swap data */
 610                 while( dst < &p_block->p_buffer[i_size- 1])
 611                 {
 612                     *dst++ = src[1];
 613                     *dst++ = src[0];
 614
 615                     src += 2;
 616                 }
 617             }
 618             else
 619             {
 620                 memcpy( p_block->p_buffer, p_sys->buffer, i_size );
 621             }
 622             p_block->i_dts = p_block->i_pts = i_pts;
 623             es_out_Send( p_demux->out, tk->p_es, p_block );
 624         }
 625     }
 626
 627
 628     return 1;
 629 }
 630
 631 /*****************************************************************************
 632  * Control:
 633  *****************************************************************************/
 634 static int Control( demux_t *p_demux, int i_query, va_list args )
 635 {
 636     demux_sys_t *p_sys = p_demux->p_sys;
 637 #if 0
 638     double f, *pf;
 639     int64_t i64;
 640 #endif
 641     int64_t *pi64;
 642
 643     switch( i_query )
 644     {
 645 #if 0
 646         case DEMUX_GET_POSITION:
 647             pf = (double*) va_arg( args, double* );
 648             i64 = stream_Size( p_demux->s );
 649             if( i64 > 0 )
 650             {
 651                 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
 652             }
 653             else
 654             {
 655                 *pf = 0.0;
 656             }
 657             return VLC_SUCCESS;
 658
 659         case DEMUX_SET_POSITION:
 660             f = (double) va_arg( args, double );
 661             i64 = stream_Size( p_demux->s );
 662
 663             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 664
 665             return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
 666
 667         case DEMUX_GET_TIME:
 668             pi64 = (int64_t*)va_arg( args, int64_t * );
 669             if( p_sys->i_mux_rate > 0 )
 670             {
 671                 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
 672                 return VLC_SUCCESS;
 673             }
 674             *pi64 = 0;
 675             return VLC_EGENERIC;
 676 #endif
 677
 678         case DEMUX_GET_LENGTH:
 679             pi64 = (int64_t*)va_arg( args, int64_t * );
 680
 681             /* the commented following lines are fen's implementation, which doesn't seem to
 682              * work for one reason or another -- FK */
 683             /*if( p_sys->i_mux_rate > 0 )
 684             {
 685                 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
 686                 return VLC_SUCCESS;
 687             }*/
 688             if( p_sys->i_our_duration > 0 )
 689             {
 690                 /* our stored duration is in ms, so... */
 691                 *pi64 = (int64_t)1000 * p_sys->i_our_duration;
 692
 693                 return VLC_SUCCESS;
 694             }
 695             *pi64 = 0;
 696             return VLC_EGENERIC;
 697
 698         case DEMUX_GET_META:
 699         {
 700             vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t* );
 701
 702             /* the core will crash if we provide NULL strings, so check
 703              * every string first */
 704             if( p_sys->psz_title )
 705                 vlc_meta_SetTitle( p_meta, p_sys->psz_title );
 706             if( p_sys->psz_artist )
 707                 vlc_meta_SetArtist( p_meta, p_sys->psz_artist );
 708             if( p_sys->psz_copyright )
 709                 vlc_meta_SetCopyright( p_meta, p_sys->psz_copyright );
 710             if( p_sys->psz_description )
 711                 vlc_meta_SetDescription( p_meta, p_sys->psz_description );
 712             return VLC_SUCCESS;
 713         }
 714
 715         case DEMUX_SET_TIME:
 716         case DEMUX_GET_FPS:
 717         default:
 718             return VLC_EGENERIC;
 719     }
 720     return VLC_EGENERIC;
 721 }
 722
 723 /*****************************************************************************
 724  * HeaderRead:
 725  *****************************************************************************/
 726 static int HeaderRead( demux_t *p_demux )
 727 {
 728     demux_sys_t *p_sys = p_demux->p_sys;
 729     uint8_t header[100];    /* FIXME */
 730
 731     uint32_t    i_id;
 732     uint32_t    i_size;
 733     int64_t     i_skip;
 734     int         i_version;
 735
 736     for( ;; )
 737     {
 738         /* Read the header */
 739         if( stream_Read( p_demux->s, header, 10 ) < 10 )
 740         {
 741             return VLC_EGENERIC;
 742         }
 743         i_id        = VLC_FOURCC( header[0], header[1], header[2], header[3] );
 744         i_size      = GetDWBE( &header[4] );
 745         i_version   = GetWBE( &header[8] );
 746
 747         msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
 748                  (char*)&i_id, i_size, i_version );
 749
 750         if( i_size < 10 && i_id != VLC_FOURCC('D','A','T','A') )
 751         {
 752             msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
 753             return VLC_EGENERIC;
 754         }
 755         i_skip = i_size - 10;
 756
 757         if( i_id == VLC_FOURCC('.','R','M','F') )
 758         {
 759             if( stream_Read( p_demux->s, header, 8 ) < 8 ) return VLC_EGENERIC;
 760             msg_Dbg( p_demux, "    - file version=0x%x num headers=%d",
 761                      GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
 762
 763             i_skip -= 8;
 764         }
 765         else if( i_id == VLC_FOURCC('P','R','O','P') )
 766         {
 767             int i_flags;
 768
 769             if( stream_Read(p_demux->s, header, 40) < 40 ) return VLC_EGENERIC;
 770
 771             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d",
 772                      GetDWBE(&header[0]), GetDWBE(&header[4]) );
 773             msg_Dbg( p_demux, "    - max packet size=%d avg bitrate=%d",
 774                      GetDWBE(&header[8]), GetDWBE(&header[12]) );
 775             msg_Dbg( p_demux, "    - packets count=%d", GetDWBE(&header[16]) );
 776             msg_Dbg( p_demux, "    - duration=%d ms", GetDWBE(&header[20]) );
 777             msg_Dbg( p_demux, "    - preroll=%d ms", GetDWBE(&header[24]) );
 778             msg_Dbg( p_demux, "    - index offset=%d", GetDWBE(&header[28]) );
 779             msg_Dbg( p_demux, "    - data offset=%d", GetDWBE(&header[32]) );
 780             msg_Dbg( p_demux, "    - num streams=%d", GetWBE(&header[36]) );
 781
 782             /* set the duration for export in control */
 783             p_sys->i_our_duration = (int)GetDWBE(&header[20]);
 784
 785             i_flags = GetWBE(&header[38]);
 786             msg_Dbg( p_demux, "    - flags=0x%x %s%s%s",
 787                      i_flags,
 788                      i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
 789                      i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
 790                      i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
 791             i_skip -= 40;
 792         }
 793         else if( i_id == VLC_FOURCC('C','O','N','T') )
 794         {
 795             int i_len;
 796             char *psz;
 797
 798             /* FIXME FIXME: should convert from whatever the character
 799              * encoding of the input meta data is to UTF-8. */
 800
 801             stream_Read( p_demux->s, header, 2 );
 802             if( ( i_len = GetWBE( header ) ) > 0 )
 803             {
 804                 psz = malloc( i_len + 1 );
 805                 stream_Read( p_demux->s, psz, i_len );
 806                 psz[i_len] = '\0';
 807
 808                 msg_Dbg( p_demux, "    - title=`%s'", psz );
 809                 EnsureUTF8( psz );
 810                 asprintf( &p_sys->psz_title, psz );
 811                 free( psz );
 812                 i_skip -= i_len;
 813             }
 814             i_skip -= 2;
 815
 816             stream_Read( p_demux->s, header, 2 );
 817             if( ( i_len = GetWBE( header ) ) > 0 )
 818             {
 819                 psz = malloc( i_len + 1 );
 820                 stream_Read( p_demux->s, psz, i_len );
 821                 psz[i_len] = '\0';
 822
 823                 msg_Dbg( p_demux, "    - author=`%s'", psz );
 824                 EnsureUTF8( psz );
 825                 asprintf( &p_sys->psz_artist, psz );
 826                 free( psz );
 827                 i_skip -= i_len;
 828             }
 829             i_skip -= 2;
 830
 831             stream_Read( p_demux->s, header, 2 );
 832             if( ( i_len = GetWBE( header ) ) > 0 )
 833             {
 834                 psz = malloc( i_len + 1 );
 835                 stream_Read( p_demux->s, psz, i_len );
 836                 psz[i_len] = '\0';
 837
 838                 msg_Dbg( p_demux, "    - copyright=`%s'", psz );
 839                 EnsureUTF8( psz );
 840                 asprintf( &p_sys->psz_copyright, psz );
 841                 free( psz );
 842                 i_skip -= i_len;
 843             }
 844             i_skip -= 2;
 845
 846             stream_Read( p_demux->s, header, 2 );
 847             if( ( i_len = GetWBE( header ) ) > 0 )
 848             {
 849                 psz = malloc( i_len + 1 );
 850                 stream_Read( p_demux->s, psz, i_len );
 851                 psz[i_len] = '\0';
 852
 853                 msg_Dbg( p_demux, "    - comment=`%s'", psz );
 854                 EnsureUTF8( psz );
 855                 asprintf( &p_sys->psz_description, psz );
 856                 free( psz );
 857                 i_skip -= i_len;
 858             }
 859             i_skip -= 2;
 860         }
 861         else if( i_id == VLC_FOURCC('M','D','P','R') )
 862         {
 863             /* Media properties header */
 864             int  i_num;
 865             int  i_len;
 866             char *psz;
 867
 868             if( stream_Read(p_demux->s, header, 30) < 30 ) return VLC_EGENERIC;
 869             i_num = GetWBE( header );
 870             msg_Dbg( p_demux, "    - id=0x%x", i_num );
 871             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d",
 872                      GetDWBE(&header[2]), GetDWBE(&header[6]) );
 873             msg_Dbg( p_demux, "    - max packet size=%d avg packet size=%d",
 874                      GetDWBE(&header[10]), GetDWBE(&header[14]) );
 875             msg_Dbg( p_demux, "    - start time=%d", GetDWBE(&header[18]) );
 876             msg_Dbg( p_demux, "    - preroll=%d", GetDWBE(&header[22]) );
 877             msg_Dbg( p_demux, "    - duration=%d", GetDWBE(&header[26]) );
 878
 879             i_skip -= 30;
 880
 881             stream_Read( p_demux->s, header, 1 );
 882             if( ( i_len = header[0] ) > 0 )
 883             {
 884                 psz = malloc( i_len + 1 );
 885                 stream_Read( p_demux->s, psz, i_len );
 886                 psz[i_len] = '\0';
 887
 888                 msg_Dbg( p_demux, "    - name=`%s'", psz );
 889                 free( psz );
 890                 i_skip -= i_len;
 891             }
 892             i_skip--;
 893
 894             stream_Read( p_demux->s, header, 1 );
 895             if( ( i_len = header[0] ) > 0 )
 896             {
 897                 psz = malloc( i_len + 1 );
 898                 stream_Read( p_demux->s, psz, i_len );
 899                 psz[i_len] = '\0';
 900
 901                 msg_Dbg( p_demux, "    - mime=`%s'", psz );
 902                 free( psz );
 903                 i_skip -= i_len;
 904             }
 905             i_skip--;
 906
 907             stream_Read( p_demux->s, header, 4 );
 908             if( ( i_len = GetDWBE( header ) ) > 0 )
 909             {
 910                 ReadCodecSpecificData( p_demux, i_len, i_num );
 911                 stream_Read( p_demux->s, NULL, i_len );
 912
 913                 i_skip -= i_len;
 914             }
 915             i_skip -= 4;
 916         }
 917         else if( i_id == VLC_FOURCC('D','A','T','A') )
 918         {
 919             stream_Read( p_demux->s, header, 8 );
 920
 921             p_sys->i_data_offset    = stream_Tell( p_demux->s ) - 10;
 922             p_sys->i_data_size      = i_size;
 923             p_sys->i_data_packets_count = GetDWBE( header );
 924             p_sys->i_data_packets   = 0;
 925             p_sys->i_data_offset_next = GetDWBE( &header[4] );
 926
 927             msg_Dbg( p_demux, "    - packets count=%d next=%u",
 928                      p_sys->i_data_packets_count,
 929                      (uint32_t)p_sys->i_data_offset_next );
 930
 931             /* we have finished the header */
 932             break;
 933         }
 934         else
 935         {
 936             /* unknow header */
 937             msg_Dbg( p_demux, "unknown chunk" );
 938         }
 939
 940         if( i_skip < 0 ) return VLC_EGENERIC;
 941         stream_Read( p_demux->s, NULL, i_skip );
 942     }
 943
 944     /* TODO read index if possible */
 945
 946     return VLC_SUCCESS;
 947 }
 948
 949 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
 950 {
 951     demux_sys_t *p_sys = p_demux->p_sys;
 952     es_format_t fmt;
 953     real_track_t *tk;
 954     const uint8_t *p_peek;
 955
 956     msg_Dbg( p_demux, "    - specific data len=%d", i_len );
 957     if( stream_Peek(p_demux->s, &p_peek, i_len) < i_len ) return VLC_EGENERIC;
 958
 959     if( ( i_len >= 8 ) && !memcmp( &p_peek[4], "VIDO", 4 ) )
 960     {
 961         es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC( p_peek[8], p_peek[9],
 962                         p_peek[10], p_peek[11] ) );
 963         fmt.video.i_width = GetWBE( &p_peek[12] );
 964         fmt.video.i_height= GetWBE( &p_peek[14] );
 965
 966         fmt.i_extra = 8;
 967         fmt.p_extra = malloc( 8 );
 968         ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
 969         ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
 970
 971         msg_Dbg( p_demux, "    - video 0x%08x 0x%08x",
 972                  ((uint32_t*)fmt.p_extra)[0], ((uint32_t*)fmt.p_extra)[1] );
 973
 974         if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
 975             GetDWBE( &p_peek[30] ) == 0x10003001 )
 976         {
 977             fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
 978         }
 979         else if( GetDWBE( &p_peek[30] ) == 0x20001000 ||
 980                  GetDWBE( &p_peek[30] ) == 0x20100001 ||
 981                  GetDWBE( &p_peek[30] ) == 0x20200002 )
 982         {
 983             fmt.i_codec = VLC_FOURCC( 'R','V','2','0' );
 984         }
 985         else if( GetDWBE( &p_peek[30] ) == 0x30202002 )
 986         {
 987             fmt.i_codec = VLC_FOURCC( 'R','V','3','0' );
 988         }
 989         else if( GetDWBE( &p_peek[30] ) == 0x40000000 )
 990         {
 991             fmt.i_codec = VLC_FOURCC( 'R','V','4','0' );
 992         }
 993
 994         msg_Dbg( p_demux, "    - video %4.4s %dx%d",
 995                  (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
 996
 997         tk = malloc( sizeof( real_track_t ) );
 998         tk->i_out_subpacket = 0;
 999         tk->i_subpacket = 0;
1000         tk->i_subpackets = 0;
1001         tk->p_subpackets = NULL;
1002         tk->i_id = i_num;
1003         tk->fmt = fmt;
1004         tk->i_frame = 0;
1005         tk->p_frame = NULL;
1006         tk->p_es = es_out_Add( p_demux->out, &fmt );
1007
1008         TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1009     }
1010     else if( !strncmp( (char *)p_peek, ".ra\xfd", 4 ) )
1011     {
1012         int i_header_size, i_flavor, i_coded_frame_size, i_subpacket_h;
1013         int i_frame_size, i_subpacket_size;
1014         int i_version = GetWBE( &p_peek[4] );   /* [0..3] = '.','r','a',0xfd */
1015         msg_Dbg( p_demux, "    - audio version=%d", i_version );
1016
1017         p_peek += 6;                                          /* 4 + version */
1018         es_format_Init( &fmt, AUDIO_ES, 0 );
1019
1020         if( i_version == 3 )
1021         {
1022             int i_len;
1023             char *psz;
1024
1025             i_header_size = GetWBE( p_peek ); p_peek += 2;  /* Size from now */
1026             p_peek += 10;                                         /* Unknown */
1027
1028             p_peek += 4;                                        /* Data Size */
1029
1030             /* Title */
1031             i_len = *p_peek ; p_peek++;
1032             if( i_len > 0 )
1033             {
1034                 psz = malloc( i_len + 1 );
1035                 memcpy( psz, p_peek, i_len );
1036                 psz[i_len] = '\0';
1037
1038                 msg_Dbg( p_demux, "    - title=`%s'", psz );
1039                 EnsureUTF8( psz );
1040                 asprintf( &p_sys->psz_title, psz );
1041                 free( psz );
1042             }
1043             p_peek += i_len;
1044
1045             /* Authors */
1046             i_len = *p_peek ; p_peek++;
1047             if( i_len > 0 )
1048             {
1049                 psz = malloc( i_len + 1 );
1050                 memcpy( psz, p_peek, i_len );
1051                 psz[i_len] = '\0';
1052
1053                 msg_Dbg( p_demux, "    - artist=`%s'", psz );
1054                 EnsureUTF8( psz );
1055                 asprintf( &p_sys->psz_artist, psz );
1056                 free( psz );
1057             }
1058             p_peek += i_len;
1059
1060             /* Copyright */
1061             i_len = *p_peek ; p_peek++;
1062             if( i_len > 0 )
1063             {
1064                 psz = malloc( i_len + 1 );
1065                 memcpy( psz, p_peek, i_len );
1066                 psz[i_len] = '\0';
1067
1068                 msg_Dbg( p_demux, "    - Copyright=`%s'", psz );
1069                 EnsureUTF8( psz );
1070                 asprintf( &p_sys->psz_copyright, psz );
1071                 free( psz );
1072             }
1073             p_peek += i_len;
1074
1075             /* Comment */
1076             i_len = *p_peek ; p_peek++;
1077             if( i_len > 0 )
1078             {
1079                 psz = malloc( i_len + 1 );
1080                 memcpy( psz, p_peek, i_len );
1081                 psz[i_len] = '\0';
1082
1083                 msg_Dbg( p_demux, "    - Comment=`%s'", psz );
1084                 EnsureUTF8( psz );
1085                 asprintf( &p_sys->psz_description, psz );
1086                 free( psz );
1087             }
1088             /* This might be unusefull */
1089             p_peek += i_len;
1090
1091             p_peek ++;                                           /* Unknown */
1092             p_peek ++;                                 /* FourCC length = 4 */
1093             memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1094             /* Up to here :) */
1095
1096             fmt.audio.i_channels = 1;      /* This is always the case in rm3 */
1097             fmt.audio.i_rate = 8000;
1098
1099             msg_Dbg( p_demux, "    - audio codec=%4.4s channels=%d rate=%dHz",
1100                  (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1101         }
1102         else
1103         {
1104
1105             p_peek += 2;                                           /* 00 00 */
1106             p_peek += 4;                                    /* .ra4 or .ra5 */
1107             p_peek += 4;                                       /* data size */
1108             p_peek += 2;                                /* version (4 or 5) */
1109             i_header_size = GetDWBE( p_peek ); p_peek += 4;   /* header size */
1110             i_flavor = GetWBE( p_peek ); p_peek += 2;        /* codec flavor */
1111             i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4; /* coded frame size*/
1112             p_peek += 4;                                               /* ?? */
1113             p_peek += 4;                                               /* ?? */
1114             p_peek += 4;                                               /* ?? */
1115             i_subpacket_h = GetWBE( p_peek ); p_peek += 2;              /* 1 */
1116             i_frame_size = GetWBE( p_peek ); p_peek += 2;      /* frame size */
1117             i_subpacket_size = GetWBE( p_peek ); p_peek += 2;  /* subpacket_size */
1118             p_peek += 2;                                               /* ?? */
1119
1120             if( i_version == 5 ) p_peek += 6;                 /* 0, srate, 0 */
1121
1122             fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2; /* Sample Rate */
1123             p_peek += 2;                                               /* ?? */
1124             fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2;/* Sure?*/
1125             fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2; /* Channels */
1126             fmt.audio.i_blockalign = i_frame_size;
1127
1128             if( i_version == 5 )
1129             {
1130                 p_peek += 4;                                         /* genr */
1131                 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1132             }
1133             else
1134             {
1135                 p_peek += p_peek[0] + 1;                          /* descr 1 */
1136                 memcpy( (char *)&fmt.i_codec, p_peek + 1, 4 );    /* descr 2 */
1137                 p_peek += p_peek[0] + 1;
1138             }
1139
1140             msg_Dbg( p_demux, "    - audio codec=%4.4s channels=%d rate=%dHz",
1141                  (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1142
1143             p_peek += 3;                                               /* ?? */
1144             if( i_version == 5 ) p_peek++;
1145             /* Extra Data then: DWord + byte[] */
1146             fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
1147         }
1148
1149         switch( fmt.i_codec )
1150         {
1151         case VLC_FOURCC('1','4','_','4'):
1152             break;
1153         case VLC_FOURCC('l','p','c','J'):
1154             fmt.i_codec = VLC_FOURCC( '1','4','_','4' );
1155             break;
1156
1157         case VLC_FOURCC('2','8','_','8'):
1158             fmt.i_extra = 0;
1159             fmt.audio.i_blockalign = i_coded_frame_size;
1160             break;
1161
1162         case VLC_FOURCC( 'd','n','e','t' ):
1163             fmt.i_codec = VLC_FOURCC( 'a','5','2',' ' );
1164             break;
1165
1166         case VLC_FOURCC( 'r','a','a','c' ):
1167         case VLC_FOURCC( 'r','a','c','p' ):
1168             if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
1169             if( fmt.i_extra > 0 )
1170             {
1171                 fmt.p_extra = malloc( fmt.i_extra );
1172                 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1173             }
1174
1175             fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1176             break;
1177
1178         case VLC_FOURCC('c','o','o','k'):
1179         case VLC_FOURCC('a','t','r','c'):
1180             fmt.audio.i_blockalign = i_subpacket_size;
1181             if( !fmt.i_extra ) break;
1182             fmt.p_extra = malloc( fmt.i_extra );
1183             memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1184             break;
1185
1186         case VLC_FOURCC('s','i','p','r'):
1187             fmt.i_extra = 0;
1188             fmt.audio.i_blockalign = i_coded_frame_size;
1189             fmt.audio.i_bitspersample = sipr_fl2bps[ i_flavor ];
1190             break;
1191
1192         case VLC_FOURCC('r','a','l','f'):
1193             msg_Dbg( p_demux, "    - audio codec not supported=%4.4s",
1194                      (char*)&fmt.i_codec );
1195             break;
1196
1197         default:
1198             msg_Dbg( p_demux, "    - unknown audio codec=%4.4s",
1199                      (char*)&fmt.i_codec );
1200             break;
1201         }
1202
1203         if( fmt.i_codec != 0 )
1204         {
1205             int i;
1206
1207             msg_Dbg( p_demux, "        - extra data=%d", fmt.i_extra );
1208
1209             tk = malloc( sizeof( real_track_t ) );
1210             tk->i_id = i_num;
1211             tk->fmt = fmt;
1212             tk->i_frame = 0;
1213             tk->p_frame = NULL;
1214
1215             tk->i_subpacket_h = i_subpacket_h;
1216             tk->i_subpacket_size = i_subpacket_size;
1217             tk->i_coded_frame_size = i_coded_frame_size;
1218             tk->i_frame_size = i_frame_size;
1219
1220             tk->i_out_subpacket = 0;
1221             tk->i_subpacket = 0;
1222             tk->i_subpackets = 0;
1223             tk->p_subpackets = NULL;
1224             if( fmt.i_codec == VLC_FOURCC('c','o','o','k')
1225              || fmt.i_codec == VLC_FOURCC('a','t','r','c') )
1226             {
1227                 tk->i_subpackets =
1228                     i_subpacket_h * i_frame_size / tk->i_subpacket_size;
1229                 tk->p_subpackets =
1230                     malloc( tk->i_subpackets * sizeof(block_t *) );
1231             }
1232             else if( fmt.i_codec == VLC_FOURCC('2','8','_','8') )
1233             {
1234                 tk->i_subpackets =
1235                     i_subpacket_h * i_frame_size / tk->i_coded_frame_size;
1236                 tk->p_subpackets =
1237                     malloc( tk->i_subpackets * sizeof(block_t *) );
1238             }
1239
1240             for( i = 0; i < tk->i_subpackets; i++ ) tk->p_subpackets[i] = NULL;
1241
1242             tk->p_es = es_out_Add( p_demux->out, &fmt );
1243
1244             TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1245         }
1246     }
1247
1248     return VLC_SUCCESS;
1249 }