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 /*****************************************************************************
 128  * Open
 129  *****************************************************************************/
 130 static int Open( vlc_object_t *p_this )
 131 {
 132     demux_t     *p_demux = (demux_t*)p_this;
 133     demux_sys_t *p_sys;
 134
 135     const uint8_t *p_peek;
 136
 137     if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return VLC_EGENERIC;
 138     if( !memcmp( p_peek, ".ra", 3 ) )
 139     {
 140         msg_Warn( p_demux, ".ra files unsuported" );
 141         return VLC_EGENERIC;
 142     }
 143     if( memcmp( p_peek, ".RMF", 4 ) ) return VLC_EGENERIC;
 144
 145     /* Fill p_demux field */
 146     p_demux->pf_demux = Demux;
 147     p_demux->pf_control = Control;
 148     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
 149     memset( p_sys, 0, sizeof( demux_sys_t ) );
 150     p_sys->i_data_offset = 0;
 151     p_sys->i_track = 0;
 152     p_sys->track   = NULL;
 153     p_sys->i_pcr   = 1;
 154
 155
 156     /* Parse the headers */
 157     if( HeaderRead( p_demux ) )
 158     {
 159         int i;
 160         msg_Err( p_demux, "invalid header" );
 161         for( i = 0; i < p_sys->i_track; i++ )
 162         {
 163             real_track_t *tk = p_sys->track[i];
 164
 165             if( tk->p_es )
 166             {
 167                 es_out_Del( p_demux->out, tk->p_es );
 168             }
 169             free( tk );
 170         }
 171         if( p_sys->i_track > 0 )
 172         {
 173             free( p_sys->track );
 174         }
 175         free( p_sys );
 176         return VLC_EGENERIC;
 177     }
 178
 179     return VLC_SUCCESS;
 180 }
 181
 182 /*****************************************************************************
 183  * Close
 184  *****************************************************************************/
 185 static void Close( vlc_object_t *p_this )
 186 {
 187     demux_t *p_demux = (demux_t*)p_this;
 188     demux_sys_t *p_sys = p_demux->p_sys;
 189     int i;
 190
 191     for( i = 0; i < p_sys->i_track; i++ )
 192     {
 193         real_track_t *tk = p_sys->track[i];
 194         int j = tk->i_subpackets;
 195
 196         if( tk->p_frame ) block_Release( tk->p_frame );
 197         es_format_Clean( &tk->fmt );
 198
 199         while(  j-- )
 200         {
 201             if( tk->p_subpackets[ j ] )
 202                 block_Release( tk->p_subpackets[ j ] );
 203         }
 204         if( tk->i_subpackets ) free( tk->p_subpackets );
 205
 206         free( tk );
 207     }
 208
 209     if( p_sys->psz_title ) free( p_sys->psz_title );
 210     if( p_sys->psz_artist ) free( p_sys->psz_artist );
 211     if( p_sys->psz_copyright ) free( p_sys->psz_copyright );
 212     if( p_sys->psz_description ) free( p_sys->psz_description );
 213
 214     if( p_sys->i_track > 0 ) free( p_sys->track );
 215     free( p_sys );
 216 }
 217
 218
 219 /*****************************************************************************
 220  * Demux:
 221  *****************************************************************************/
 222 static int Demux( demux_t *p_demux )
 223 {
 224     demux_sys_t *p_sys = p_demux->p_sys;
 225     uint8_t     header[18];
 226     int         i_size, i_id, i_flags, i;
 227     int64_t     i_pts;
 228     real_track_t *tk = NULL;
 229     vlc_bool_t  b_selected;
 230
 231     if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
 232         p_sys->i_data_packets_count )
 233     {
 234         if( stream_Read( p_demux->s, header, 18 ) < 18 )
 235         {
 236             return 0;
 237         }
 238         if( strncmp( (char *)header, "DATA", 4 ) )
 239         {
 240             return 0;
 241         }
 242         p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
 243         p_sys->i_data_size   = GetDWBE( &header[4] );
 244         p_sys->i_data_packets_count = GetDWBE( &header[10] );
 245         p_sys->i_data_packets = 0;
 246         p_sys->i_data_offset_next = GetDWBE( &header[14] );
 247
 248         msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
 249                  p_sys->i_data_packets_count,
 250                  (uint32_t)p_sys->i_data_offset_next );
 251     }
 252
 253     if( stream_Read( p_demux->s, header, 12 ) < 12 ) return 0;
 254
 255     i_size = GetWBE( &header[2] ) - 12;
 256     i_id   = GetWBE( &header[4] );
 257     i_pts  = 1000 * GetDWBE( &header[6] );
 258     i_pts += 1000; /* Avoid 0 pts */
 259     i_flags= header[11]; /* flags 0x02 -> keyframe */
 260
 261 #if 0
 262     msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
 263              p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
 264 #endif
 265
 266     p_sys->i_data_packets++;
 267
 268     stream_Read( p_demux->s, p_sys->buffer, i_size );
 269
 270     for( i = 0; i < p_sys->i_track; i++ )
 271     {
 272         if( p_sys->track[i]->i_id == i_id ) tk = p_sys->track[i];
 273     }
 274
 275     if( tk == NULL )
 276     {
 277         msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
 278         return 1;
 279     }
 280     es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
 281
 282     if( tk->fmt.i_cat == VIDEO_ES && b_selected )
 283     {
 284         uint8_t *p = p_sys->buffer;
 285
 286         while( p < &p_sys->buffer[i_size - 2] )
 287         {
 288             uint8_t h = *p++;
 289             int     i_len = 0;
 290             int     i_copy;
 291             int     i_subseq = 0;
 292             int     i_seqnum = 0;
 293             int     i_offset = 0;
 294
 295             if( (h&0xc0) == 0x40 )
 296             {
 297                 /* Short header */
 298                 p++;
 299                 i_len = &p_sys->buffer[i_size] - p;
 300             }
 301             else
 302             {
 303                 if( (h&0x40) == 0 )
 304                 {
 305                     i_subseq = (*p++)&0x7f;
 306                 }
 307                 i_len = (p[0] << 8)|p[1]; p += 2;
 308                 if( (i_len&0xc000) == 0 )
 309                 {
 310                     i_len <<= 16;
 311                     i_len |= (p[0] << 8)|p[1]; p += 2;
 312                     i_len &= 0x3fffffff;
 313                 }
 314                 else
 315                 {
 316                     i_len &= 0x3fff;
 317                 }
 318
 319                 i_offset = (p[0] << 8)|p[1]; p += 2;
 320                 if( (i_offset&0xc000) == 0 )
 321                 {
 322                     i_offset <<= 16;
 323                     i_offset |= (p[0] << 8)|p[1]; p += 2;
 324                     i_offset &= 0x3fffffff;
 325                 }
 326                 else
 327                 {
 328                     i_offset &= 0x3fff;
 329                 }
 330                 i_seqnum = *p++;
 331             }
 332
 333             i_copy = i_len - i_offset;
 334             if( i_copy > &p_sys->buffer[i_size] - p )
 335             {
 336                 i_copy = &p_sys->buffer[i_size] - p;
 337             }
 338             else if( i_copy < 0 )
 339             {
 340                 break;
 341             }
 342
 343             msg_Dbg( p_demux, "    - len=%d offset=%d size=%d subseq=%d seqnum=%d",
 344                      i_len, i_offset, i_copy, i_subseq, i_seqnum );
 345
 346             if( (h&0xc0) == 0x80 )
 347             {
 348                 /* last fragment -> fixes */
 349                 i_copy = i_offset;
 350                 i_offset = i_len - i_copy;
 351                 msg_Dbg( p_demux, "last fixing copy=%d offset=%d",
 352                          i_copy, i_offset );
 353             }
 354
 355             if( tk->p_frame &&
 356                 ( tk->p_frame->i_dts != i_pts ||
 357                   tk->i_frame != i_len ) )
 358             {
 359                 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
 360
 361                 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
 362
 363                 tk->i_frame = 0;
 364                 tk->p_frame = NULL;
 365             }
 366
 367             if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && !tk->p_frame )
 368             {
 369                 /* no fragment */
 370                 i_len = i_copy;
 371                 i_offset = 0;
 372             }
 373
 374
 375             if( tk->p_frame == NULL )
 376             {
 377                 msg_Dbg( p_demux, "new frame size=%d", i_len );
 378                 tk->i_frame = i_len;
 379                 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
 380                 {
 381                     return -1;
 382                 }
 383                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
 384                 tk->p_frame->i_dts = i_pts;
 385                 tk->p_frame->i_pts = i_pts;
 386
 387                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
 388                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0;      /* chunk counts */
 389             }
 390
 391             if( i_offset < tk->i_frame)
 392             {
 393                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
 394
 395                 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d",
 396                          i_ck, i_offset, i_copy );
 397
 398                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck*2 +0 ] = 1;
 399                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck*2 +1 ] = i_offset;
 400
 401
 402                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 403             }
 404
 405             p += i_copy;
 406
 407             if( (h&0xc0) != 0x80 )
 408             {
 409                 break;
 410             }
 411
 412 #if 0
 413             if( tk->p_frame )
 414             {
 415                 /* append data */
 416                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
 417
 418                 if( (h&0xc0) == 0x80 )
 419                 {
 420                     /* last fragment */
 421                     i_copy = i_offset;
 422                     i_offset = i_len - i_offset;
 423
 424                     ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
 425                     memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
 426                     p += i_copy;
 427
 428                     if( p_sys->i_pcr < tk->p_frame->i_dts )
 429                     {
 430                         p_sys->i_pcr = tk->p_frame->i_dts;
 431                         es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 432                                         (int64_t)p_sys->i_pcr );
 433                     }
 434                     es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
 435
 436                     tk->i_frame = 0;
 437                     tk->p_frame = NULL;
 438
 439                     continue;
 440                 }
 441
 442                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
 443                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 444                 break;
 445             }
 446
 447             if( (h&0xc0) != 0x00 )
 448             {
 449                 block_t *p_frame;
 450
 451                 /* not fragmented */
 452                 if( !( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) )
 453                 {
 454                     return -1;
 455                 }
 456                 p_frame->i_dts = i_pts;
 457                 p_frame->i_pts = i_pts;
 458
 459                 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
 460                 ((uint32_t*)p_frame->p_buffer)[1] = 1;
 461                 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
 462                 memcpy( &p_frame->p_buffer[8], p, i_copy );
 463
 464                 p += i_copy;
 465
 466                 if( p_sys->i_pcr < p_frame->i_dts )
 467                 {
 468                     p_sys->i_pcr = p_frame->i_dts;
 469                     es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 470                                     (int64_t)p_sys->i_pcr );
 471                 }
 472                 es_out_Send( p_demux->out, tk->p_es, p_frame );
 473             }
 474             else
 475             {
 476                 /* First fragment */
 477                 tk->i_frame = i_len;
 478                 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
 479                 {
 480                     return -1;
 481                 }
 482                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
 483                 tk->p_frame->i_dts = i_pts;
 484                 tk->p_frame->i_pts = i_pts;
 485
 486                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
 487                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1;      /* chunk counts */
 488                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
 489                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 490
 491                 break;
 492             }
 493 #endif
 494         }
 495     }
 496     else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
 497     {
 498         if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
 499             tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c') ||
 500             tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r') ||
 501             tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8') )
 502         {
 503             uint8_t *p_buf = p_sys->buffer;
 504             int y = tk->i_subpacket / ( tk->i_frame_size /tk->i_subpacket_size);
 505             int i_index, i;
 506
 507             /* Sanity check */
 508             if( i_flags & 2 ) y = tk->i_subpacket = 0;
 509
 510             if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
 511                 tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c' ))
 512             for( i = 0; i < tk->i_frame_size / tk->i_subpacket_size; i++ )
 513             {
 514                 block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
 515                 memcpy( p_block->p_buffer, p_buf, tk->i_subpacket_size );
 516                 p_buf += tk->i_subpacket_size;
 517
 518                 i_index = tk->i_subpacket_h * i +
 519                     ((tk->i_subpacket_h + 1) / 2) * (y&1) + (y>>1);
 520
 521                 p_block->i_dts = p_block->i_pts = i_pts;
 522                 tk->p_subpackets[i_index] = p_block;
 523                 tk->i_subpacket++;
 524             }
 525
 526             if( tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8' ) ||
 527                 tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r' ) )
 528             for( i = 0; i < tk->i_subpacket_h / 2; i++ )
 529             {
 530                 block_t *p_block = block_New( p_demux, tk->i_coded_frame_size);
 531                 memcpy( p_block->p_buffer, p_buf, tk->i_coded_frame_size );
 532                 p_buf += tk->i_coded_frame_size;
 533
 534                 i_index = (i * 2 * tk->i_frame_size) /
 535                     tk->i_coded_frame_size + y;
 536
 537                 p_block->i_dts = p_block->i_pts = i_pts;
 538                 tk->p_subpackets[i_index] = p_block;
 539                 tk->i_subpacket++;
 540             }
 541
 542             while( tk->i_out_subpacket != tk->i_subpackets &&
 543                    tk->p_subpackets[tk->i_out_subpacket] )
 544             {
 545                 /* Set the PCR */
 546                 if (tk->i_out_subpacket == 0)
 547                 {
 548                     p_sys->i_pcr = tk->p_subpackets[tk->i_out_subpacket]->i_dts;
 549                     es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 550                             (int64_t)p_sys->i_pcr );
 551                 }
 552
 553                 block_t *p_block = tk->p_subpackets[tk->i_out_subpacket];
 554                 tk->p_subpackets[tk->i_out_subpacket] = 0;
 555
 556                 if( tk->i_out_subpacket ) p_block->i_dts = p_block->i_pts = 0;
 557                 es_out_Send( p_demux->out, tk->p_es, p_block );
 558
 559                 tk->i_out_subpacket++;
 560             }
 561
 562             if( tk->i_subpacket == tk->i_subpackets &&
 563                 tk->i_out_subpacket != tk->i_subpackets )
 564             {
 565                 msg_Warn( p_demux, "i_subpacket != i_out_subpacket, "
 566                           "this shouldn't happen" );
 567             }
 568
 569             if( tk->i_subpacket == tk->i_subpackets )
 570             {
 571                 tk->i_subpacket = 0;
 572                 tk->i_out_subpacket = 0;
 573             }
 574         }
 575         else
 576         {
 577             /* Set PCR */
 578             if( p_sys->i_pcr < i_pts )
 579             {
 580                 p_sys->i_pcr = i_pts;
 581                 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 582                         (int64_t)p_sys->i_pcr );
 583             }
 584
 585             if( tk->fmt.i_codec == VLC_FOURCC( 'm','p','4','a' ) )
 586             {
 587                 int     i_sub = (p_sys->buffer[1] >> 4)&0x0f;
 588                 uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
 589
 590                 int i;
 591                 for( i = 0; i < i_sub; i++ )
 592                 {
 593                     int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
 594                     block_t *p_block = block_New( p_demux, i_sub_size );
 595                     if( p_block )
 596                     {
 597                         memcpy( p_block->p_buffer, p_sub, i_sub_size );
 598                         p_sub += i_sub_size;
 599
 600                         p_block->i_dts =
 601                             p_block->i_pts = ( i == 0 ? i_pts : 0 );
 602
 603                         es_out_Send( p_demux->out, tk->p_es, p_block );
 604                     }
 605                 }
 606             }
 607             else
 608             {
 609                 block_t *p_block = block_New( p_demux, i_size );
 610
 611                 if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
 612                 {
 613                     uint8_t *src = p_sys->buffer;
 614                     uint8_t *dst = p_block->p_buffer;
 615
 616                     /* byte swap data */
 617                     while( dst < &p_block->p_buffer[i_size- 1])
 618                     {
 619                         *dst++ = src[1];
 620                         *dst++ = src[0];
 621
 622                         src += 2;
 623                     }
 624                 }
 625                 else
 626                 {
 627                     memcpy( p_block->p_buffer, p_sys->buffer, i_size );
 628                 }
 629                 p_block->i_dts = p_block->i_pts = i_pts;
 630                 es_out_Send( p_demux->out, tk->p_es, p_block );
 631             }
 632         }
 633     }
 634
 635
 636     return 1;
 637 }
 638
 639 /*****************************************************************************
 640  * Control:
 641  *****************************************************************************/
 642 static int Control( demux_t *p_demux, int i_query, va_list args )
 643 {
 644     demux_sys_t *p_sys = p_demux->p_sys;
 645 #if 0
 646     double f, *pf;
 647     int64_t i64;
 648 #endif
 649     int64_t *pi64;
 650
 651     switch( i_query )
 652     {
 653 #if 0
 654         case DEMUX_GET_POSITION:
 655             pf = (double*) va_arg( args, double* );
 656             i64 = stream_Size( p_demux->s );
 657             if( i64 > 0 )
 658             {
 659                 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
 660             }
 661             else
 662             {
 663                 *pf = 0.0;
 664             }
 665             return VLC_SUCCESS;
 666
 667         case DEMUX_SET_POSITION:
 668             f = (double) va_arg( args, double );
 669             i64 = stream_Size( p_demux->s );
 670
 671             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 672
 673             return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
 674
 675         case DEMUX_GET_TIME:
 676             pi64 = (int64_t*)va_arg( args, int64_t * );
 677             if( p_sys->i_mux_rate > 0 )
 678             {
 679                 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
 680                 return VLC_SUCCESS;
 681             }
 682             *pi64 = 0;
 683             return VLC_EGENERIC;
 684 #endif
 685
 686         case DEMUX_GET_LENGTH:
 687             pi64 = (int64_t*)va_arg( args, int64_t * );
 688
 689             /* the commented following lines are fen's implementation, which doesn't seem to
 690              * work for one reason or another -- FK */
 691             /*if( p_sys->i_mux_rate > 0 )
 692             {
 693                 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
 694                 return VLC_SUCCESS;
 695             }*/
 696             if( p_sys->i_our_duration > 0 )
 697             {
 698                 /* our stored duration is in ms, so... */
 699                 *pi64 = (int64_t)1000 * p_sys->i_our_duration;
 700
 701                 return VLC_SUCCESS;
 702             }
 703             *pi64 = 0;
 704             return VLC_EGENERIC;
 705
 706         case DEMUX_GET_META:
 707         {
 708             vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t* );
 709
 710             /* the core will crash if we provide NULL strings, so check
 711              * every string first */
 712             if( p_sys->psz_title )
 713                 vlc_meta_SetTitle( p_meta, p_sys->psz_title );
 714             if( p_sys->psz_artist )
 715                 vlc_meta_SetArtist( p_meta, p_sys->psz_artist );
 716             if( p_sys->psz_copyright )
 717                 vlc_meta_SetCopyright( p_meta, p_sys->psz_copyright );
 718             if( p_sys->psz_description )
 719                 vlc_meta_SetDescription( p_meta, p_sys->psz_description );
 720             return VLC_SUCCESS;
 721         }
 722
 723         case DEMUX_SET_TIME:
 724         case DEMUX_GET_FPS:
 725         default:
 726             return VLC_EGENERIC;
 727     }
 728     return VLC_EGENERIC;
 729 }
 730
 731 /*****************************************************************************
 732  * HeaderRead:
 733  *****************************************************************************/
 734 static int HeaderRead( demux_t *p_demux )
 735 {
 736     demux_sys_t *p_sys = p_demux->p_sys;
 737     uint8_t header[100];    /* FIXME */
 738
 739     uint32_t    i_id;
 740     uint32_t    i_size;
 741     int64_t     i_skip;
 742     int         i_version;
 743
 744     for( ;; )
 745     {
 746         /* Read the header */
 747         if( stream_Read( p_demux->s, header, 10 ) < 10 )
 748         {
 749             return VLC_EGENERIC;
 750         }
 751         i_id        = VLC_FOURCC( header[0], header[1], header[2], header[3] );
 752         i_size      = GetDWBE( &header[4] );
 753         i_version   = GetWBE( &header[8] );
 754
 755         msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
 756                  (char*)&i_id, i_size, i_version );
 757
 758         if( i_size < 10 && i_id != VLC_FOURCC('D','A','T','A') )
 759         {
 760             msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
 761             return VLC_EGENERIC;
 762         }
 763         i_skip = i_size - 10;
 764
 765         if( i_id == VLC_FOURCC('.','R','M','F') )
 766         {
 767             if( stream_Read( p_demux->s, header, 8 ) < 8 ) return VLC_EGENERIC;
 768             msg_Dbg( p_demux, "    - file version=0x%x num headers=%d",
 769                      GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
 770
 771             i_skip -= 8;
 772         }
 773         else if( i_id == VLC_FOURCC('P','R','O','P') )
 774         {
 775             int i_flags;
 776
 777             if( stream_Read(p_demux->s, header, 40) < 40 ) return VLC_EGENERIC;
 778
 779             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d",
 780                      GetDWBE(&header[0]), GetDWBE(&header[4]) );
 781             msg_Dbg( p_demux, "    - max packet size=%d avg bitrate=%d",
 782                      GetDWBE(&header[8]), GetDWBE(&header[12]) );
 783             msg_Dbg( p_demux, "    - packets count=%d", GetDWBE(&header[16]) );
 784             msg_Dbg( p_demux, "    - duration=%d ms", GetDWBE(&header[20]) );
 785             msg_Dbg( p_demux, "    - preroll=%d ms", GetDWBE(&header[24]) );
 786             msg_Dbg( p_demux, "    - index offset=%d", GetDWBE(&header[28]) );
 787             msg_Dbg( p_demux, "    - data offset=%d", GetDWBE(&header[32]) );
 788             msg_Dbg( p_demux, "    - num streams=%d", GetWBE(&header[36]) );
 789
 790             /* set the duration for export in control */
 791             p_sys->i_our_duration = (int)GetDWBE(&header[20]);
 792
 793             i_flags = GetWBE(&header[38]);
 794             msg_Dbg( p_demux, "    - flags=0x%x %s%s%s",
 795                      i_flags,
 796                      i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
 797                      i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
 798                      i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
 799             i_skip -= 40;
 800         }
 801         else if( i_id == VLC_FOURCC('C','O','N','T') )
 802         {
 803             int i_len;
 804             char *psz;
 805
 806             /* FIXME FIXME: should convert from whatever the character
 807              * encoding of the input meta data is to UTF-8. */
 808
 809             stream_Read( p_demux->s, header, 2 );
 810             if( ( i_len = GetWBE( header ) ) > 0 )
 811             {
 812                 psz = malloc( i_len + 1 );
 813                 stream_Read( p_demux->s, psz, i_len );
 814                 psz[i_len] = '\0';
 815
 816                 msg_Dbg( p_demux, "    - title=`%s'", psz );
 817                 EnsureUTF8( psz );
 818                 asprintf( &p_sys->psz_title, psz );
 819                 free( psz );
 820                 i_skip -= i_len;
 821             }
 822             i_skip -= 2;
 823
 824             stream_Read( p_demux->s, header, 2 );
 825             if( ( i_len = GetWBE( header ) ) > 0 )
 826             {
 827                 psz = malloc( i_len + 1 );
 828                 stream_Read( p_demux->s, psz, i_len );
 829                 psz[i_len] = '\0';
 830
 831                 msg_Dbg( p_demux, "    - author=`%s'", psz );
 832                 EnsureUTF8( psz );
 833                 asprintf( &p_sys->psz_artist, psz );
 834                 free( psz );
 835                 i_skip -= i_len;
 836             }
 837             i_skip -= 2;
 838
 839             stream_Read( p_demux->s, header, 2 );
 840             if( ( i_len = GetWBE( header ) ) > 0 )
 841             {
 842                 psz = malloc( i_len + 1 );
 843                 stream_Read( p_demux->s, psz, i_len );
 844                 psz[i_len] = '\0';
 845
 846                 msg_Dbg( p_demux, "    - copyright=`%s'", psz );
 847                 EnsureUTF8( psz );
 848                 asprintf( &p_sys->psz_copyright, psz );
 849                 free( psz );
 850                 i_skip -= i_len;
 851             }
 852             i_skip -= 2;
 853
 854             stream_Read( p_demux->s, header, 2 );
 855             if( ( i_len = GetWBE( header ) ) > 0 )
 856             {
 857                 psz = malloc( i_len + 1 );
 858                 stream_Read( p_demux->s, psz, i_len );
 859                 psz[i_len] = '\0';
 860
 861                 msg_Dbg( p_demux, "    - comment=`%s'", psz );
 862                 EnsureUTF8( psz );
 863                 asprintf( &p_sys->psz_description, psz );
 864                 free( psz );
 865                 i_skip -= i_len;
 866             }
 867             i_skip -= 2;
 868         }
 869         else if( i_id == VLC_FOURCC('M','D','P','R') )
 870         {
 871             /* Media properties header */
 872             int  i_num;
 873             int  i_len;
 874             char *psz;
 875
 876             if( stream_Read(p_demux->s, header, 30) < 30 ) return VLC_EGENERIC;
 877             i_num = GetWBE( header );
 878             msg_Dbg( p_demux, "    - id=0x%x", i_num );
 879             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d",
 880                      GetDWBE(&header[2]), GetDWBE(&header[6]) );
 881             msg_Dbg( p_demux, "    - max packet size=%d avg packet size=%d",
 882                      GetDWBE(&header[10]), GetDWBE(&header[14]) );
 883             msg_Dbg( p_demux, "    - start time=%d", GetDWBE(&header[18]) );
 884             msg_Dbg( p_demux, "    - preroll=%d", GetDWBE(&header[22]) );
 885             msg_Dbg( p_demux, "    - duration=%d", GetDWBE(&header[26]) );
 886
 887             i_skip -= 30;
 888
 889             stream_Read( p_demux->s, header, 1 );
 890             if( ( i_len = header[0] ) > 0 )
 891             {
 892                 psz = malloc( i_len + 1 );
 893                 stream_Read( p_demux->s, psz, i_len );
 894                 psz[i_len] = '\0';
 895
 896                 msg_Dbg( p_demux, "    - name=`%s'", psz );
 897                 free( psz );
 898                 i_skip -= i_len;
 899             }
 900             i_skip--;
 901
 902             stream_Read( p_demux->s, header, 1 );
 903             if( ( i_len = header[0] ) > 0 )
 904             {
 905                 psz = malloc( i_len + 1 );
 906                 stream_Read( p_demux->s, psz, i_len );
 907                 psz[i_len] = '\0';
 908
 909                 msg_Dbg( p_demux, "    - mime=`%s'", psz );
 910                 free( psz );
 911                 i_skip -= i_len;
 912             }
 913             i_skip--;
 914
 915             stream_Read( p_demux->s, header, 4 );
 916             if( ( i_len = GetDWBE( header ) ) > 0 )
 917             {
 918                 ReadCodecSpecificData( p_demux, i_len, i_num );
 919                 stream_Read( p_demux->s, NULL, i_len );
 920
 921                 i_skip -= i_len;
 922             }
 923             i_skip -= 4;
 924         }
 925         else if( i_id == VLC_FOURCC('D','A','T','A') )
 926         {
 927             stream_Read( p_demux->s, header, 8 );
 928
 929             p_sys->i_data_offset    = stream_Tell( p_demux->s ) - 10;
 930             p_sys->i_data_size      = i_size;
 931             p_sys->i_data_packets_count = GetDWBE( header );
 932             p_sys->i_data_packets   = 0;
 933             p_sys->i_data_offset_next = GetDWBE( &header[4] );
 934
 935             msg_Dbg( p_demux, "    - packets count=%d next=%u",
 936                      p_sys->i_data_packets_count,
 937                      (uint32_t)p_sys->i_data_offset_next );
 938
 939             /* we have finished the header */
 940             break;
 941         }
 942         else
 943         {
 944             /* unknow header */
 945             msg_Dbg( p_demux, "unknown chunk" );
 946         }
 947
 948         if( i_skip < 0 ) return VLC_EGENERIC;
 949         stream_Read( p_demux->s, NULL, i_skip );
 950     }
 951
 952     /* TODO read index if possible */
 953
 954     return VLC_SUCCESS;
 955 }
 956
 957 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
 958 {
 959     demux_sys_t *p_sys = p_demux->p_sys;
 960     es_format_t fmt;
 961     real_track_t *tk;
 962     const uint8_t *p_peek;
 963
 964     msg_Dbg( p_demux, "    - specific data len=%d", i_len );
 965     if( stream_Peek(p_demux->s, &p_peek, i_len) < i_len ) return VLC_EGENERIC;
 966
 967     if( ( i_len >= 8 ) && !memcmp( &p_peek[4], "VIDO", 4 ) )
 968     {
 969         es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC( p_peek[8], p_peek[9],
 970                         p_peek[10], p_peek[11] ) );
 971         fmt.video.i_width = GetWBE( &p_peek[12] );
 972         fmt.video.i_height= GetWBE( &p_peek[14] );
 973
 974         fmt.i_extra = 8;
 975         fmt.p_extra = malloc( 8 );
 976         ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
 977         ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
 978
 979         msg_Dbg( p_demux, "    - video 0x%08x 0x%08x",
 980                  ((uint32_t*)fmt.p_extra)[0], ((uint32_t*)fmt.p_extra)[1] );
 981
 982         if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
 983             GetDWBE( &p_peek[30] ) == 0x10003001 )
 984         {
 985             fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
 986         }
 987         else if( GetDWBE( &p_peek[30] ) == 0x20001000 ||
 988                  GetDWBE( &p_peek[30] ) == 0x20100001 ||
 989                  GetDWBE( &p_peek[30] ) == 0x20200002 )
 990         {
 991             fmt.i_codec = VLC_FOURCC( 'R','V','2','0' );
 992         }
 993         else if( GetDWBE( &p_peek[30] ) == 0x30202002 )
 994         {
 995             fmt.i_codec = VLC_FOURCC( 'R','V','3','0' );
 996         }
 997         else if( GetDWBE( &p_peek[30] ) == 0x40000000 )
 998         {
 999             fmt.i_codec = VLC_FOURCC( 'R','V','4','0' );
1000         }
1001
1002         msg_Dbg( p_demux, "    - video %4.4s %dx%d",
1003                  (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
1004
1005         tk = malloc( sizeof( real_track_t ) );
1006         tk->i_out_subpacket = 0;
1007         tk->i_subpacket = 0;
1008         tk->i_subpackets = 0;
1009         tk->p_subpackets = NULL;
1010         tk->i_id = i_num;
1011         tk->fmt = fmt;
1012         tk->i_frame = 0;
1013         tk->p_frame = NULL;
1014         tk->p_es = es_out_Add( p_demux->out, &fmt );
1015
1016         TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1017     }
1018     else if( !strncmp( (char *)p_peek, ".ra\xfd", 4 ) )
1019     {
1020         int i_header_size, i_flavor, i_coded_frame_size, i_subpacket_h;
1021         int i_frame_size, i_subpacket_size;
1022         char p_genr[4];
1023         int i_version = GetWBE( &p_peek[4] );   /* [0..3] = '.','r','a',0xfd */
1024         msg_Dbg( p_demux, "    - audio version=%d", i_version );
1025
1026         p_peek += 6;                                          /* 4 + version */
1027         es_format_Init( &fmt, AUDIO_ES, 0 );
1028
1029         if( i_version == 3 )
1030         {
1031             int i_len;
1032             char *psz;
1033
1034             i_header_size = GetWBE( p_peek ); p_peek += 2;  /* Size from now */
1035             p_peek += 10;                                         /* Unknown */
1036
1037             p_peek += 4;                                        /* Data Size */
1038
1039             /* Title */
1040             i_len = *p_peek ; p_peek++;
1041             if( i_len > 0 )
1042             {
1043                 psz = malloc( i_len + 1 );
1044                 memcpy( psz, p_peek, i_len );
1045                 psz[i_len] = '\0';
1046
1047                 msg_Dbg( p_demux, "    - title=`%s'", psz );
1048                 EnsureUTF8( psz );
1049                 asprintf( &p_sys->psz_title, psz );
1050                 free( psz );
1051             }
1052             p_peek += i_len;
1053
1054             /* Authors */
1055             i_len = *p_peek ; p_peek++;
1056             if( i_len > 0 )
1057             {
1058                 psz = malloc( i_len + 1 );
1059                 memcpy( psz, p_peek, i_len );
1060                 psz[i_len] = '\0';
1061
1062                 msg_Dbg( p_demux, "    - artist=`%s'", psz );
1063                 EnsureUTF8( psz );
1064                 asprintf( &p_sys->psz_artist, psz );
1065                 free( psz );
1066             }
1067             p_peek += i_len;
1068
1069             /* Copyright */
1070             i_len = *p_peek ; p_peek++;
1071             if( i_len > 0 )
1072             {
1073                 psz = malloc( i_len + 1 );
1074                 memcpy( psz, p_peek, i_len );
1075                 psz[i_len] = '\0';
1076
1077                 msg_Dbg( p_demux, "    - Copyright=`%s'", psz );
1078                 EnsureUTF8( psz );
1079                 asprintf( &p_sys->psz_copyright, psz );
1080                 free( psz );
1081             }
1082             p_peek += i_len;
1083
1084             /* Comment */
1085             i_len = *p_peek ; p_peek++;
1086             if( i_len > 0 )
1087             {
1088                 psz = malloc( i_len + 1 );
1089                 memcpy( psz, p_peek, i_len );
1090                 psz[i_len] = '\0';
1091
1092                 msg_Dbg( p_demux, "    - Comment=`%s'", psz );
1093                 EnsureUTF8( psz );
1094                 asprintf( &p_sys->psz_description, psz );
1095                 free( psz );
1096             }
1097             /* This might be unusefull */
1098             p_peek += i_len;
1099
1100             p_peek ++;                                           /* Unknown */
1101             p_peek ++;                                 /* FourCC length = 4 */
1102             memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1103             /* Up to here :) */
1104
1105             fmt.audio.i_channels = 1;      /* This is always the case in rm3 */
1106             fmt.audio.i_rate = 8000;
1107
1108             msg_Dbg( p_demux, "    - audio codec=%4.4s channels=%d rate=%dHz",
1109                  (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1110         }
1111         else /* RMF version 4/5 */
1112         {
1113             p_peek += 2;                                           /* 00 00 */
1114             p_peek += 4;                                    /* .ra4 or .ra5 */
1115             p_peek += 4;                                       /* data size */
1116             p_peek += 2;                                /* version (4 or 5) */
1117             i_header_size = GetDWBE( p_peek ); p_peek += 4;   /* header size */
1118             i_flavor = GetWBE( p_peek ); p_peek += 2;        /* codec flavor */
1119             i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4; /* coded frame size*/
1120             p_peek += 4;                                               /* ?? */
1121             p_peek += 4;                                               /* ?? */
1122             p_peek += 4;                                               /* ?? */
1123             i_subpacket_h = GetWBE( p_peek ); p_peek += 2;              /* 1 */
1124             i_frame_size = GetWBE( p_peek ); p_peek += 2;      /* frame size */
1125             i_subpacket_size = GetWBE( p_peek ); p_peek += 2;  /* subpacket_size */
1126             p_peek += 2;                                               /* ?? */
1127
1128             if( i_version == 5 ) p_peek += 6;                 /* 0, srate, 0 */
1129
1130             fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2; /* Sample Rate */
1131             p_peek += 2;                                               /* ?? */
1132             fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2;/* Sure?*/
1133             fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2; /* Channels */
1134             fmt.audio.i_blockalign = i_frame_size;
1135
1136             if( i_version == 5 )
1137             {
1138                 memcpy( (char *)p_genr, p_peek, 4 ); p_peek += 4;    /* genr */
1139                 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1140             }
1141             else
1142             {
1143                 p_peek += p_peek[0] + 1;                          /* descr 1 */
1144                 memcpy( (char *)&fmt.i_codec, p_peek + 1, 4 );    /* descr 2 */
1145                 p_peek += p_peek[0] + 1;
1146             }
1147
1148             msg_Dbg( p_demux, "    - audio codec=%4.4s channels=%d rate=%dHz",
1149                  (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1150
1151             p_peek += 3;                                               /* ?? */
1152             if( i_version == 5 ) p_peek++;
1153             /* Extra Data then: DWord + byte[] */
1154             fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
1155         }
1156
1157         switch( fmt.i_codec )
1158         {
1159         case VLC_FOURCC('1','4','_','4'):
1160             /* fmt.audio.i_blockalign = 0x14 */
1161             break;
1162         case VLC_FOURCC('l','p','c','J'):
1163             /* fmt.audio.i_blockalign = 0x14 */
1164             fmt.i_codec = VLC_FOURCC( '1','4','_','4' );
1165             break;
1166
1167         case VLC_FOURCC('2','8','_','8'):
1168             fmt.i_extra = 0;
1169             fmt.audio.i_blockalign = i_coded_frame_size;
1170             break;
1171
1172         case VLC_FOURCC( 'd','n','e','t' ):
1173             fmt.i_codec = VLC_FOURCC( 'a','5','2',' ' );
1174             break;
1175
1176         case VLC_FOURCC( 'r','a','a','c' ):
1177         case VLC_FOURCC( 'r','a','c','p' ):
1178             if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
1179             if( fmt.i_extra > 0 )
1180             {
1181                 fmt.p_extra = malloc( fmt.i_extra );
1182                 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1183             }
1184
1185             fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1186             break;
1187
1188         case VLC_FOURCC('s','i','p','r'):
1189             fmt.audio.i_flavor = i_flavor;
1190         case VLC_FOURCC('c','o','o','k'):
1191         case VLC_FOURCC('a','t','r','c'):
1192             if( !memcmp( p_genr, "genr", 4 ) )
1193                 fmt.audio.i_blockalign = i_subpacket_size;
1194             else
1195                 fmt.audio.i_blockalign = i_coded_frame_size;
1196             if( !fmt.i_extra ) break;
1197             fmt.p_extra = malloc( fmt.i_extra );
1198             memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1199             break;
1200
1201         case VLC_FOURCC('r','a','l','f'):
1202             msg_Dbg( p_demux, "    - audio codec not supported=%4.4s",
1203                      (char*)&fmt.i_codec );
1204             break;
1205
1206         default:
1207             msg_Dbg( p_demux, "    - unknown audio codec=%4.4s",
1208                      (char*)&fmt.i_codec );
1209             break;
1210         }
1211
1212         if( fmt.i_codec != 0 )
1213         {
1214             int i;
1215
1216             msg_Dbg( p_demux, "        - extra data=%d", fmt.i_extra );
1217
1218             tk = malloc( sizeof( real_track_t ) );
1219             tk->i_id = i_num;
1220             tk->fmt = fmt;
1221             tk->i_frame = 0;
1222             tk->p_frame = NULL;
1223
1224             tk->i_subpacket_h = i_subpacket_h;
1225             tk->i_subpacket_size = i_subpacket_size;
1226             tk->i_coded_frame_size = i_coded_frame_size;
1227             tk->i_frame_size = i_frame_size;
1228
1229             tk->i_out_subpacket = 0;
1230             tk->i_subpacket = 0;
1231             tk->i_subpackets = 0;
1232             tk->p_subpackets = NULL;
1233             if( fmt.i_codec == VLC_FOURCC('c','o','o','k')
1234              || fmt.i_codec == VLC_FOURCC('a','t','r','c') )
1235             {
1236                 tk->i_subpackets =
1237                     i_subpacket_h * i_frame_size / tk->i_subpacket_size;
1238                 tk->p_subpackets =
1239                     malloc( tk->i_subpackets * sizeof(block_t *) );
1240             }
1241             else if( fmt.i_codec == VLC_FOURCC('2','8','_','8') )
1242             {
1243                 tk->i_subpackets =
1244                     i_subpacket_h * i_frame_size / tk->i_coded_frame_size;
1245                 tk->p_subpackets =
1246                     malloc( tk->i_subpackets * sizeof(block_t *) );
1247             }
1248
1249             for( i = 0; i < tk->i_subpackets; i++ ) tk->p_subpackets[i] = NULL;
1250
1251             tk->p_es = es_out_Add( p_demux->out, &fmt );
1252
1253             TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1254         }
1255     }
1256
1257     return VLC_SUCCESS;
1258 }