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