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 #ifdef HAVE_CONFIG_H
  49 # include "config.h"
  50 #endif
  51
  52 #include <vlc/vlc.h>
  53
  54
  55 #include <vlc_demux.h>
  56 #include <vlc_charset.h>
  57 #include <vlc_meta.h>
  58
  59 /*****************************************************************************
  60  * Module descriptor
  61  *****************************************************************************/
  62 static int  Open    ( vlc_object_t * );
  63 static void Close  ( vlc_object_t * );
  64
  65 vlc_module_begin();
  66     set_description( _("Real demuxer" ) );
  67     set_capability( "demux2", 15 );
  68     set_category( CAT_INPUT );
  69     set_subcategory( SUBCAT_INPUT_DEMUX );
  70     set_callbacks( Open, Close );
  71     add_shortcut( "real" );
  72     add_shortcut( "rm" );
  73 vlc_module_end();
  74
  75 /*****************************************************************************
  76  * Local prototypes
  77  *****************************************************************************/
  78
  79 typedef struct
  80 {
  81     int         i_id;
  82     es_format_t fmt;
  83
  84     es_out_id_t *p_es;
  85
  86     int         i_frame;
  87     block_t     *p_frame;
  88
  89     int         i_subpacket_h;
  90     int         i_subpacket_size;
  91     int         i_coded_frame_size;
  92     int         i_frame_size;
  93
  94     int         i_subpacket;
  95     int         i_subpackets;
  96     block_t     **p_subpackets;
  97     int         i_out_subpacket;
  98
  99 } real_track_t;
 100
 101 struct demux_sys_t
 102 {
 103     int64_t  i_data_offset;
 104     int64_t  i_data_size;
 105     uint32_t i_data_packets_count;
 106     uint32_t i_data_packets;
 107     int64_t  i_data_offset_next;
 108
 109     int  i_our_duration;
 110     int  i_mux_rate;
 111
 112     char* psz_title;
 113     char* psz_artist;
 114     char* psz_copyright;
 115     char* psz_description;
 116
 117     int          i_track;
 118     real_track_t **track;
 119
 120     uint8_t buffer[65536];
 121
 122     int64_t     i_pcr;
 123 };
 124
 125 static int Demux( demux_t *p_demux );
 126 static int Control( demux_t *p_demux, int i_query, va_list args );
 127
 128 static int HeaderRead( demux_t *p_demux );
 129 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num );
 130
 131 /*****************************************************************************
 132  * Open
 133  *****************************************************************************/
 134 static int Open( vlc_object_t *p_this )
 135 {
 136     demux_t     *p_demux = (demux_t*)p_this;
 137     demux_sys_t *p_sys;
 138
 139     const uint8_t *p_peek;
 140
 141     if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return VLC_EGENERIC;
 142     if( !memcmp( p_peek, ".ra", 3 ) )
 143     {
 144         msg_Warn( p_demux, ".ra files unsuported" );
 145         return VLC_EGENERIC;
 146     }
 147     if( memcmp( p_peek, ".RMF", 4 ) ) return VLC_EGENERIC;
 148
 149     /* Fill p_demux field */
 150     p_demux->pf_demux = Demux;
 151     p_demux->pf_control = Control;
 152
 153     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
 154     if( p_sys == NULL )
 155     {
 156         return VLC_ENOMEM;
 157     }
 158     memset( p_sys, 0, sizeof( demux_sys_t ) );
 159
 160     p_sys->i_data_offset = 0;
 161     p_sys->i_track = 0;
 162     p_sys->track   = NULL;
 163     p_sys->i_pcr   = 1;
 164
 165
 166     /* Parse the headers */
 167     if( HeaderRead( p_demux ) )
 168     {
 169         int i;
 170         msg_Err( p_demux, "invalid header" );
 171         for( i = 0; i < p_sys->i_track; i++ )
 172         {
 173             real_track_t *tk = p_sys->track[i];
 174
 175             if( tk->p_es )
 176             {
 177                 es_out_Del( p_demux->out, tk->p_es );
 178             }
 179             free( tk );
 180         }
 181         if( p_sys->i_track > 0 )
 182         {
 183             free( p_sys->track );
 184         }
 185         free( p_sys );
 186         return VLC_EGENERIC;
 187     }
 188
 189     return VLC_SUCCESS;
 190 }
 191
 192 /*****************************************************************************
 193  * Close
 194  *****************************************************************************/
 195 static void Close( vlc_object_t *p_this )
 196 {
 197     demux_t *p_demux = (demux_t*)p_this;
 198     demux_sys_t *p_sys = p_demux->p_sys;
 199     int i;
 200
 201     for( i = 0; i < p_sys->i_track; i++ )
 202     {
 203         real_track_t *tk = p_sys->track[i];
 204         int j = tk->i_subpackets;
 205
 206         if( tk->p_frame ) block_Release( tk->p_frame );
 207         es_format_Clean( &tk->fmt );
 208
 209         while(  j-- )
 210         {
 211             if( tk->p_subpackets[ j ] )
 212                 block_Release( tk->p_subpackets[ j ] );
 213         }
 214         if( tk->i_subpackets ) free( tk->p_subpackets );
 215
 216         free( tk );
 217     }
 218
 219     free( p_sys->psz_title );
 220     free( p_sys->psz_artist );
 221     free( p_sys->psz_copyright );
 222     free( p_sys->psz_description );
 223
 224     if( p_sys->i_track > 0 ) free( p_sys->track );
 225     free( p_sys );
 226 }
 227
 228
 229 /*****************************************************************************
 230  * Demux:
 231  *****************************************************************************/
 232 static int Demux( demux_t *p_demux )
 233 {
 234     demux_sys_t *p_sys = p_demux->p_sys;
 235     uint8_t     header[18];
 236     int         i_size, i_id, i_flags, i;
 237     int64_t     i_pts;
 238     real_track_t *tk = NULL;
 239     bool  b_selected;
 240
 241     if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
 242         p_sys->i_data_packets_count )
 243     {
 244         if( stream_Read( p_demux->s, header, 18 ) < 18 )
 245         {
 246             return 0;
 247         }
 248         if( strncmp( (char *)header, "DATA", 4 ) )
 249         {
 250             return 0;
 251         }
 252         p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
 253         p_sys->i_data_size   = GetDWBE( &header[4] );
 254         p_sys->i_data_packets_count = GetDWBE( &header[10] );
 255         p_sys->i_data_packets = 0;
 256         p_sys->i_data_offset_next = GetDWBE( &header[14] );
 257
 258         msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
 259                  p_sys->i_data_packets_count,
 260                  (uint32_t)p_sys->i_data_offset_next );
 261     }
 262
 263     if( stream_Read( p_demux->s, header, 12 ) < 12 ) return 0;
 264
 265     i_size = GetWBE( &header[2] ) - 12;
 266     i_id   = GetWBE( &header[4] );
 267     i_pts  = 1000 * GetDWBE( &header[6] );
 268     i_pts += 1000; /* Avoid 0 pts */
 269     i_flags= header[11]; /* flags 0x02 -> keyframe */
 270
 271 #if 0
 272     msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
 273              p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
 274 #endif
 275
 276     p_sys->i_data_packets++;
 277
 278     stream_Read( p_demux->s, p_sys->buffer, i_size );
 279
 280     for( i = 0; i < p_sys->i_track; i++ )
 281     {
 282         if( p_sys->track[i]->i_id == i_id ) tk = p_sys->track[i];
 283     }
 284
 285     if( tk == NULL )
 286     {
 287         msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
 288         return 1;
 289     }
 290     es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
 291
 292     if( tk->fmt.i_cat == VIDEO_ES && b_selected )
 293     {
 294         uint8_t *p = p_sys->buffer;
 295
 296         while( p < &p_sys->buffer[i_size - 2] )
 297         {
 298             uint8_t h = *p++;
 299             int     i_len = 0;
 300             int     i_copy;
 301             int     i_subseq = 0;
 302             int     i_seqnum = 0;
 303             int     i_offset = 0;
 304
 305             if( (h&0xc0) == 0x40 )
 306             {
 307                 /* Short header */
 308                 p++;
 309                 i_len = &p_sys->buffer[i_size] - p;
 310             }
 311             else
 312             {
 313                 if( (h&0x40) == 0 )
 314                 {
 315                     i_subseq = (*p++)&0x7f;
 316                 }
 317                 i_len = (p[0] << 8)|p[1]; p += 2;
 318                 if( (i_len&0xc000) == 0 )
 319                 {
 320                     i_len <<= 16;
 321                     i_len |= (p[0] << 8)|p[1]; p += 2;
 322                     i_len &= 0x3fffffff;
 323                 }
 324                 else
 325                 {
 326                     i_len &= 0x3fff;
 327                 }
 328
 329                 i_offset = (p[0] << 8)|p[1]; p += 2;
 330                 if( (i_offset&0xc000) == 0 )
 331                 {
 332                     i_offset <<= 16;
 333                     i_offset |= (p[0] << 8)|p[1]; p += 2;
 334                     i_offset &= 0x3fffffff;
 335                 }
 336                 else
 337                 {
 338                     i_offset &= 0x3fff;
 339                 }
 340                 i_seqnum = *p++;
 341             }
 342
 343             i_copy = i_len - i_offset;
 344             if( i_copy > &p_sys->buffer[i_size] - p )
 345             {
 346                 i_copy = &p_sys->buffer[i_size] - p;
 347             }
 348             else if( i_copy < 0 )
 349             {
 350                 break;
 351             }
 352
 353             msg_Dbg( p_demux, "    - len=%d offset=%d size=%d subseq=%d seqnum=%d",
 354                      i_len, i_offset, i_copy, i_subseq, i_seqnum );
 355
 356             if( (h&0xc0) == 0x80 )
 357             {
 358                 /* last fragment -> fixes */
 359                 i_copy = i_offset;
 360                 i_offset = i_len - i_copy;
 361                 msg_Dbg( p_demux, "last fixing copy=%d offset=%d",
 362                          i_copy, i_offset );
 363             }
 364
 365             if( tk->p_frame &&
 366                 ( tk->p_frame->i_dts != i_pts ||
 367                   tk->i_frame != i_len ) )
 368             {
 369                 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
 370
 371                 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
 372
 373                 tk->i_frame = 0;
 374                 tk->p_frame = NULL;
 375             }
 376
 377             if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && !tk->p_frame )
 378             {
 379                 /* no fragment */
 380                 i_len = i_copy;
 381                 i_offset = 0;
 382             }
 383
 384
 385             if( tk->p_frame == NULL )
 386             {
 387                 msg_Dbg( p_demux, "new frame size=%d", i_len );
 388                 tk->i_frame = i_len;
 389                 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
 390                 {
 391                     return -1;
 392                 }
 393                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
 394                 tk->p_frame->i_dts = i_pts;
 395                 tk->p_frame->i_pts = i_pts;
 396
 397                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
 398                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0;      /* chunk counts */
 399             }
 400
 401             if( i_offset < tk->i_frame)
 402             {
 403                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
 404
 405                 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d",
 406                          i_ck, i_offset, i_copy );
 407
 408                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck*2 +0 ] = 1;
 409                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck*2 +1 ] = i_offset;
 410
 411
 412                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 413             }
 414
 415             p += i_copy;
 416
 417             if( (h&0xc0) != 0x80 )
 418             {
 419                 break;
 420             }
 421
 422 #if 0
 423             if( tk->p_frame )
 424             {
 425                 /* append data */
 426                 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
 427
 428                 if( (h&0xc0) == 0x80 )
 429                 {
 430                     /* last fragment */
 431                     i_copy = i_offset;
 432                     i_offset = i_len - i_offset;
 433
 434                     ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
 435                     memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
 436                     p += i_copy;
 437
 438                     if( p_sys->i_pcr < tk->p_frame->i_dts )
 439                     {
 440                         p_sys->i_pcr = tk->p_frame->i_dts;
 441                         es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 442                                         (int64_t)p_sys->i_pcr );
 443                     }
 444                     es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
 445
 446                     tk->i_frame = 0;
 447                     tk->p_frame = NULL;
 448
 449                     continue;
 450                 }
 451
 452                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
 453                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 454                 break;
 455             }
 456
 457             if( (h&0xc0) != 0x00 )
 458             {
 459                 block_t *p_frame;
 460
 461                 /* not fragmented */
 462                 if( !( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) )
 463                 {
 464                     return -1;
 465                 }
 466                 p_frame->i_dts = i_pts;
 467                 p_frame->i_pts = i_pts;
 468
 469                 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
 470                 ((uint32_t*)p_frame->p_buffer)[1] = 1;
 471                 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
 472                 memcpy( &p_frame->p_buffer[8], p, i_copy );
 473
 474                 p += i_copy;
 475
 476                 if( p_sys->i_pcr < p_frame->i_dts )
 477                 {
 478                     p_sys->i_pcr = p_frame->i_dts;
 479                     es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 480                                     (int64_t)p_sys->i_pcr );
 481                 }
 482                 es_out_Send( p_demux->out, tk->p_es, p_frame );
 483             }
 484             else
 485             {
 486                 /* First fragment */
 487                 tk->i_frame = i_len;
 488                 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
 489                 {
 490                     return -1;
 491                 }
 492                 memset( &tk->p_frame->p_buffer[8], 0, i_len );
 493                 tk->p_frame->i_dts = i_pts;
 494                 tk->p_frame->i_pts = i_pts;
 495
 496                 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len;  /* len */
 497                 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1;      /* chunk counts */
 498                 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
 499                 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
 500
 501                 break;
 502             }
 503 #endif
 504         }
 505     }
 506     else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
 507     {
 508         if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
 509             tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c') ||
 510             tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r') ||
 511             tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8') )
 512         {
 513             uint8_t *p_buf = p_sys->buffer;
 514             int y = tk->i_subpacket / ( tk->i_frame_size /tk->i_subpacket_size);
 515             int i_index, i;
 516
 517             /* Sanity check */
 518             if( i_flags & 2 ) y = tk->i_subpacket = 0;
 519
 520             if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
 521                 tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c' ))
 522             for( i = 0; i < tk->i_frame_size / tk->i_subpacket_size; i++ )
 523             {
 524                 block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
 525                 memcpy( p_block->p_buffer, p_buf, tk->i_subpacket_size );
 526                 p_buf += tk->i_subpacket_size;
 527
 528                 i_index = tk->i_subpacket_h * i +
 529                     ((tk->i_subpacket_h + 1) / 2) * (y&1) + (y>>1);
 530
 531                 p_block->i_dts = p_block->i_pts = i_pts;
 532                 tk->p_subpackets[i_index] = p_block;
 533                 tk->i_subpacket++;
 534             }
 535
 536             if( tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8' ) ||
 537                 tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r' ) )
 538             for( i = 0; i < tk->i_subpacket_h / 2; i++ )
 539             {
 540                 block_t *p_block = block_New( p_demux, tk->i_coded_frame_size);
 541                 memcpy( p_block->p_buffer, p_buf, tk->i_coded_frame_size );
 542                 p_buf += tk->i_coded_frame_size;
 543
 544                 i_index = (i * 2 * tk->i_frame_size) /
 545                     tk->i_coded_frame_size + y;
 546
 547                 p_block->i_dts = p_block->i_pts = i_pts;
 548                 tk->p_subpackets[i_index] = p_block;
 549                 tk->i_subpacket++;
 550             }
 551
 552             while( tk->i_out_subpacket != tk->i_subpackets &&
 553                    tk->p_subpackets[tk->i_out_subpacket] )
 554             {
 555                 /* Set the PCR */
 556                 if (tk->i_out_subpacket == 0)
 557                 {
 558                     p_sys->i_pcr = tk->p_subpackets[tk->i_out_subpacket]->i_dts;
 559                     es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 560                             (int64_t)p_sys->i_pcr );
 561                 }
 562
 563                 block_t *p_block = tk->p_subpackets[tk->i_out_subpacket];
 564                 tk->p_subpackets[tk->i_out_subpacket] = 0;
 565
 566                 if( tk->i_out_subpacket ) p_block->i_dts = p_block->i_pts = 0;
 567                 es_out_Send( p_demux->out, tk->p_es, p_block );
 568
 569                 tk->i_out_subpacket++;
 570             }
 571
 572             if( tk->i_subpacket == tk->i_subpackets &&
 573                 tk->i_out_subpacket != tk->i_subpackets )
 574             {
 575                 msg_Warn( p_demux, "i_subpacket != i_out_subpacket, "
 576                           "this shouldn't happen" );
 577             }
 578
 579             if( tk->i_subpacket == tk->i_subpackets )
 580             {
 581                 tk->i_subpacket = 0;
 582                 tk->i_out_subpacket = 0;
 583             }
 584         }
 585         else
 586         {
 587             /* Set PCR */
 588             if( p_sys->i_pcr < i_pts )
 589             {
 590                 p_sys->i_pcr = i_pts;
 591                 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
 592                         (int64_t)p_sys->i_pcr );
 593             }
 594
 595             if( tk->fmt.i_codec == VLC_FOURCC( 'm','p','4','a' ) )
 596             {
 597                 int     i_sub = (p_sys->buffer[1] >> 4)&0x0f;
 598                 uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
 599
 600                 int i;
 601                 for( i = 0; i < i_sub; i++ )
 602                 {
 603                     int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
 604                     block_t *p_block = block_New( p_demux, i_sub_size );
 605                     if( p_block )
 606                     {
 607                         memcpy( p_block->p_buffer, p_sub, i_sub_size );
 608                         p_sub += i_sub_size;
 609
 610                         p_block->i_dts =
 611                             p_block->i_pts = ( i == 0 ? i_pts : 0 );
 612
 613                         es_out_Send( p_demux->out, tk->p_es, p_block );
 614                     }
 615                 }
 616             }
 617             else
 618             {
 619                 block_t *p_block = block_New( p_demux, i_size );
 620
 621                 if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
 622                 {
 623                     uint8_t *src = p_sys->buffer;
 624                     uint8_t *dst = p_block->p_buffer;
 625
 626                     /* byte swap data */
 627                     while( dst < &p_block->p_buffer[i_size- 1])
 628                     {
 629                         *dst++ = src[1];
 630                         *dst++ = src[0];
 631
 632                         src += 2;
 633                     }
 634                 }
 635                 else
 636                 {
 637                     memcpy( p_block->p_buffer, p_sys->buffer, i_size );
 638                 }
 639                 p_block->i_dts = p_block->i_pts = i_pts;
 640                 es_out_Send( p_demux->out, tk->p_es, p_block );
 641             }
 642         }
 643     }
 644
 645
 646     return 1;
 647 }
 648
 649 /*****************************************************************************
 650  * Control:
 651  *****************************************************************************/
 652 static int Control( demux_t *p_demux, int i_query, va_list args )
 653 {
 654     demux_sys_t *p_sys = p_demux->p_sys;
 655 #if 0
 656     double f, *pf;
 657     int64_t i64;
 658 #endif
 659     int64_t *pi64;
 660
 661     switch( i_query )
 662     {
 663 #if 0
 664         case DEMUX_GET_POSITION:
 665             pf = (double*) va_arg( args, double* );
 666             i64 = stream_Size( p_demux->s );
 667             if( i64 > 0 )
 668             {
 669                 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
 670             }
 671             else
 672             {
 673                 *pf = 0.0;
 674             }
 675             return VLC_SUCCESS;
 676
 677         case DEMUX_SET_POSITION:
 678             f = (double) va_arg( args, double );
 679             i64 = stream_Size( p_demux->s );
 680
 681             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 682
 683             return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
 684
 685         case DEMUX_GET_TIME:
 686             pi64 = (int64_t*)va_arg( args, int64_t * );
 687             if( p_sys->i_mux_rate > 0 )
 688             {
 689                 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
 690                 return VLC_SUCCESS;
 691             }
 692             *pi64 = 0;
 693             return VLC_EGENERIC;
 694 #endif
 695
 696         case DEMUX_GET_LENGTH:
 697             pi64 = (int64_t*)va_arg( args, int64_t * );
 698
 699             /* the commented following lines are fen's implementation, which doesn't seem to
 700              * work for one reason or another -- FK */
 701             /*if( p_sys->i_mux_rate > 0 )
 702             {
 703                 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
 704                 return VLC_SUCCESS;
 705             }*/
 706             if( p_sys->i_our_duration > 0 )
 707             {
 708                 /* our stored duration is in ms, so... */
 709                 *pi64 = (int64_t)1000 * p_sys->i_our_duration;
 710
 711                 return VLC_SUCCESS;
 712             }
 713             *pi64 = 0;
 714             return VLC_EGENERIC;
 715
 716         case DEMUX_GET_META:
 717         {
 718             vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t* );
 719
 720             /* the core will crash if we provide NULL strings, so check
 721              * every string first */
 722             if( p_sys->psz_title )
 723                 vlc_meta_SetTitle( p_meta, p_sys->psz_title );
 724             if( p_sys->psz_artist )
 725                 vlc_meta_SetArtist( p_meta, p_sys->psz_artist );
 726             if( p_sys->psz_copyright )
 727                 vlc_meta_SetCopyright( p_meta, p_sys->psz_copyright );
 728             if( p_sys->psz_description )
 729                 vlc_meta_SetDescription( p_meta, p_sys->psz_description );
 730             return VLC_SUCCESS;
 731         }
 732
 733         case DEMUX_SET_TIME:
 734         case DEMUX_GET_FPS:
 735         default:
 736             return VLC_EGENERIC;
 737     }
 738     return VLC_EGENERIC;
 739 }
 740
 741 /*****************************************************************************
 742  * HeaderRead:
 743  *****************************************************************************/
 744 static int HeaderRead( demux_t *p_demux )
 745 {
 746     demux_sys_t *p_sys = p_demux->p_sys;
 747     uint8_t header[100];    /* FIXME */
 748
 749     uint32_t    i_id;
 750     uint32_t    i_size;
 751     int64_t     i_skip;
 752     int         i_version;
 753
 754     for( ;; )
 755     {
 756         /* Read the header */
 757         if( stream_Read( p_demux->s, header, 10 ) < 10 )
 758         {
 759             return VLC_EGENERIC;
 760         }
 761         i_id        = VLC_FOURCC( header[0], header[1], header[2], header[3] );
 762         i_size      = GetDWBE( &header[4] );
 763         i_version   = GetWBE( &header[8] );
 764
 765         msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
 766                  (char*)&i_id, i_size, i_version );
 767
 768         if( i_size < 10 && i_id != VLC_FOURCC('D','A','T','A') )
 769         {
 770             msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
 771             return VLC_EGENERIC;
 772         }
 773         i_skip = i_size - 10;
 774
 775         if( i_id == VLC_FOURCC('.','R','M','F') )
 776         {
 777             if( stream_Read( p_demux->s, header, 8 ) < 8 ) return VLC_EGENERIC;
 778             msg_Dbg( p_demux, "    - file version=0x%x num headers=%d",
 779                      GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
 780
 781             i_skip -= 8;
 782         }
 783         else if( i_id == VLC_FOURCC('P','R','O','P') )
 784         {
 785             int i_flags;
 786
 787             if( stream_Read(p_demux->s, header, 40) < 40 ) return VLC_EGENERIC;
 788
 789             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d",
 790                      GetDWBE(&header[0]), GetDWBE(&header[4]) );
 791             msg_Dbg( p_demux, "    - max packet size=%d avg bitrate=%d",
 792                      GetDWBE(&header[8]), GetDWBE(&header[12]) );
 793             msg_Dbg( p_demux, "    - packets count=%d", GetDWBE(&header[16]) );
 794             msg_Dbg( p_demux, "    - duration=%d ms", GetDWBE(&header[20]) );
 795             msg_Dbg( p_demux, "    - preroll=%d ms", GetDWBE(&header[24]) );
 796             msg_Dbg( p_demux, "    - index offset=%d", GetDWBE(&header[28]) );
 797             msg_Dbg( p_demux, "    - data offset=%d", GetDWBE(&header[32]) );
 798             msg_Dbg( p_demux, "    - num streams=%d", GetWBE(&header[36]) );
 799
 800             /* set the duration for export in control */
 801             p_sys->i_our_duration = (int)GetDWBE(&header[20]);
 802
 803             i_flags = GetWBE(&header[38]);
 804             msg_Dbg( p_demux, "    - flags=0x%x %s%s%s",
 805                      i_flags,
 806                      i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
 807                      i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
 808                      i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
 809             i_skip -= 40;
 810         }
 811         else if( i_id == VLC_FOURCC('C','O','N','T') )
 812         {
 813             int i_len;
 814             char *psz;
 815
 816             /* FIXME FIXME: should convert from whatever the character
 817              * encoding of the input meta data is to UTF-8. */
 818
 819             stream_Read( p_demux->s, header, 2 );
 820             if( ( i_len = GetWBE( header ) ) > 0 )
 821             {
 822                 psz = malloc( i_len + 1 );
 823                 stream_Read( p_demux->s, psz, i_len );
 824                 psz[i_len] = '\0';
 825
 826                 EnsureUTF8( psz );
 827                 msg_Dbg( p_demux, "    - title=`%s'", psz );
 828                 p_sys->psz_title = 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                 EnsureUTF8( psz );
 841                 msg_Dbg( p_demux, "    - author=`%s'", psz );
 842                 p_sys->psz_artist = psz;
 843                 i_skip -= i_len;
 844             }
 845             i_skip -= 2;
 846
 847             stream_Read( p_demux->s, header, 2 );
 848             if( ( i_len = GetWBE( header ) ) > 0 )
 849             {
 850                 psz = malloc( i_len + 1 );
 851                 stream_Read( p_demux->s, psz, i_len );
 852                 psz[i_len] = '\0';
 853
 854                 EnsureUTF8( psz );
 855                 msg_Dbg( p_demux, "    - copyright=`%s'", psz );
 856                 p_sys->psz_copyright = psz;
 857                 i_skip -= i_len;
 858             }
 859             i_skip -= 2;
 860
 861             stream_Read( p_demux->s, header, 2 );
 862             if( ( i_len = GetWBE( header ) ) > 0 )
 863             {
 864                 psz = malloc( i_len + 1 );
 865                 stream_Read( p_demux->s, psz, i_len );
 866                 psz[i_len] = '\0';
 867
 868                 EnsureUTF8( psz );
 869                 msg_Dbg( p_demux, "    - comment=`%s'", psz );
 870                 p_sys->psz_description = psz;
 871                 i_skip -= i_len;
 872             }
 873             i_skip -= 2;
 874         }
 875         else if( i_id == VLC_FOURCC('M','D','P','R') )
 876         {
 877             /* Media properties header */
 878             int  i_num;
 879             int  i_len;
 880             char *psz;
 881
 882             if( stream_Read(p_demux->s, header, 30) < 30 ) return VLC_EGENERIC;
 883             i_num = GetWBE( header );
 884             msg_Dbg( p_demux, "    - id=0x%x", i_num );
 885             msg_Dbg( p_demux, "    - max bitrate=%d avg bitrate=%d",
 886                      GetDWBE(&header[2]), GetDWBE(&header[6]) );
 887             msg_Dbg( p_demux, "    - max packet size=%d avg packet size=%d",
 888                      GetDWBE(&header[10]), GetDWBE(&header[14]) );
 889             msg_Dbg( p_demux, "    - start time=%d", GetDWBE(&header[18]) );
 890             msg_Dbg( p_demux, "    - preroll=%d", GetDWBE(&header[22]) );
 891             msg_Dbg( p_demux, "    - duration=%d", GetDWBE(&header[26]) );
 892
 893             i_skip -= 30;
 894
 895             stream_Read( p_demux->s, header, 1 );
 896             if( ( i_len = header[0] ) > 0 )
 897             {
 898                 psz = malloc( i_len + 1 );
 899                 stream_Read( p_demux->s, psz, i_len );
 900                 psz[i_len] = '\0';
 901
 902                 msg_Dbg( p_demux, "    - name=`%s'", psz );
 903                 free( psz );
 904                 i_skip -= i_len;
 905             }
 906             i_skip--;
 907
 908             stream_Read( p_demux->s, header, 1 );
 909             if( ( i_len = header[0] ) > 0 )
 910             {
 911                 psz = malloc( i_len + 1 );
 912                 stream_Read( p_demux->s, psz, i_len );
 913                 psz[i_len] = '\0';
 914
 915                 msg_Dbg( p_demux, "    - mime=`%s'", psz );
 916                 free( psz );
 917                 i_skip -= i_len;
 918             }
 919             i_skip--;
 920
 921             stream_Read( p_demux->s, header, 4 );
 922             if( ( i_len = GetDWBE( header ) ) > 0 )
 923             {
 924                 ReadCodecSpecificData( p_demux, i_len, i_num );
 925                 stream_Read( p_demux->s, NULL, i_len );
 926
 927                 i_skip -= i_len;
 928             }
 929             i_skip -= 4;
 930         }
 931         else if( i_id == VLC_FOURCC('D','A','T','A') )
 932         {
 933             stream_Read( p_demux->s, header, 8 );
 934
 935             p_sys->i_data_offset    = stream_Tell( p_demux->s ) - 10;
 936             p_sys->i_data_size      = i_size;
 937             p_sys->i_data_packets_count = GetDWBE( header );
 938             p_sys->i_data_packets   = 0;
 939             p_sys->i_data_offset_next = GetDWBE( &header[4] );
 940
 941             msg_Dbg( p_demux, "    - packets count=%d next=%u",
 942                      p_sys->i_data_packets_count,
 943                      (uint32_t)p_sys->i_data_offset_next );
 944
 945             /* we have finished the header */
 946             break;
 947         }
 948         else
 949         {
 950             /* unknow header */
 951             msg_Dbg( p_demux, "unknown chunk" );
 952         }
 953
 954         if( i_skip < 0 ) return VLC_EGENERIC;
 955         stream_Read( p_demux->s, NULL, i_skip );
 956     }
 957
 958     /* TODO read index if possible */
 959
 960     return VLC_SUCCESS;
 961 }
 962
 963 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
 964 {
 965     demux_sys_t *p_sys = p_demux->p_sys;
 966     es_format_t fmt;
 967     real_track_t *tk;
 968     const uint8_t *p_peek;
 969
 970     msg_Dbg( p_demux, "    - specific data len=%d", i_len );
 971     if( stream_Peek(p_demux->s, &p_peek, i_len) < i_len ) return VLC_EGENERIC;
 972
 973     if( ( i_len >= 8 ) && !memcmp( &p_peek[4], "VIDO", 4 ) )
 974     {
 975         es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC( p_peek[8], p_peek[9],
 976                         p_peek[10], p_peek[11] ) );
 977         fmt.video.i_width = GetWBE( &p_peek[12] );
 978         fmt.video.i_height= GetWBE( &p_peek[14] );
 979
 980         fmt.i_extra = 8;
 981         fmt.p_extra = malloc( 8 );
 982         ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
 983         ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
 984
 985         msg_Dbg( p_demux, "    - video 0x%08x 0x%08x",
 986                  ((uint32_t*)fmt.p_extra)[0], ((uint32_t*)fmt.p_extra)[1] );
 987
 988         if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
 989             GetDWBE( &p_peek[30] ) == 0x10003001 )
 990         {
 991             fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
 992         }
 993         else if( GetDWBE( &p_peek[30] ) == 0x20001000 ||
 994                  GetDWBE( &p_peek[30] ) == 0x20100001 ||
 995                  GetDWBE( &p_peek[30] ) == 0x20200002 )
 996         {
 997             fmt.i_codec = VLC_FOURCC( 'R','V','2','0' );
 998         }
 999         else if( GetDWBE( &p_peek[30] ) == 0x30202002 )
1000         {
1001             fmt.i_codec = VLC_FOURCC( 'R','V','3','0' );
1002         }
1003         else if( GetDWBE( &p_peek[30] ) == 0x40000000 )
1004         {
1005             fmt.i_codec = VLC_FOURCC( 'R','V','4','0' );
1006         }
1007
1008         msg_Dbg( p_demux, "    - video %4.4s %dx%d",
1009                  (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
1010
1011         tk = malloc( sizeof( real_track_t ) );
1012         tk->i_out_subpacket = 0;
1013         tk->i_subpacket = 0;
1014         tk->i_subpackets = 0;
1015         tk->p_subpackets = NULL;
1016         tk->i_id = i_num;
1017         tk->fmt = fmt;
1018         tk->i_frame = 0;
1019         tk->p_frame = NULL;
1020         tk->p_es = es_out_Add( p_demux->out, &fmt );
1021
1022         TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1023     }
1024     else if( !strncmp( (char *)p_peek, ".ra\xfd", 4 ) )
1025     {
1026         int i_header_size, i_flavor, i_coded_frame_size, i_subpacket_h;
1027         int i_frame_size, i_subpacket_size;
1028         char p_genr[4];
1029         int i_version = GetWBE( &p_peek[4] );   /* [0..3] = '.','r','a',0xfd */
1030         msg_Dbg( p_demux, "    - audio version=%d", i_version );
1031
1032         p_peek += 6;                                          /* 4 + version */
1033         es_format_Init( &fmt, AUDIO_ES, 0 );
1034
1035         if( i_version == 3 )
1036         {
1037             int i_len;
1038             char *psz;
1039
1040             i_header_size = GetWBE( p_peek ); p_peek += 2;  /* Size from now */
1041             p_peek += 10;                                         /* Unknown */
1042
1043             p_peek += 4;                                        /* Data Size */
1044
1045             /* Title */
1046             i_len = *p_peek ; p_peek++;
1047             if( i_len > 0 )
1048             {
1049                 psz = malloc( i_len + 1 );
1050                 memcpy( psz, p_peek, i_len );
1051                 psz[i_len] = '\0';
1052
1053                 EnsureUTF8( psz );
1054                 msg_Dbg( p_demux, "    - title=`%s'", psz );
1055                 p_sys->psz_title = psz;
1056             }
1057             p_peek += i_len;
1058
1059             /* Authors */
1060             i_len = *p_peek ; p_peek++;
1061             if( i_len > 0 )
1062             {
1063                 psz = malloc( i_len + 1 );
1064                 memcpy( psz, p_peek, i_len );
1065                 psz[i_len] = '\0';
1066
1067                 EnsureUTF8( psz );
1068                 msg_Dbg( p_demux, "    - artist=`%s'", psz );
1069                 p_sys->psz_artist = psz;
1070             }
1071             p_peek += i_len;
1072
1073             /* Copyright */
1074             i_len = *p_peek ; p_peek++;
1075             if( i_len > 0 )
1076             {
1077                 psz = malloc( i_len + 1 );
1078                 memcpy( psz, p_peek, i_len );
1079                 psz[i_len] = '\0';
1080
1081                 EnsureUTF8( psz );
1082                 msg_Dbg( p_demux, "    - Copyright=`%s'", psz );
1083                 p_sys->psz_copyright = psz;
1084             }
1085             p_peek += i_len;
1086
1087             /* Comment */
1088             i_len = *p_peek ; p_peek++;
1089             if( i_len > 0 )
1090             {
1091                 psz = malloc( i_len + 1 );
1092                 memcpy( psz, p_peek, i_len );
1093                 psz[i_len] = '\0';
1094
1095                 EnsureUTF8( psz );
1096                 msg_Dbg( p_demux, "    - Comment=`%s'", psz );
1097                 p_sys->psz_description = psz;
1098             }
1099             /* This might be unusefull */
1100             p_peek += i_len;
1101
1102             p_peek ++;                                           /* Unknown */
1103             p_peek ++;                                 /* FourCC length = 4 */
1104             memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1105             /* Up to here :) */
1106
1107             fmt.audio.i_channels = 1;      /* This is always the case in rm3 */
1108             fmt.audio.i_rate = 8000;
1109
1110             msg_Dbg( p_demux, "    - audio codec=%4.4s channels=%d rate=%dHz",
1111                  (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1112         }
1113         else /* RMF version 4/5 */
1114         {
1115             p_peek += 2;                                           /* 00 00 */
1116             p_peek += 4;                                    /* .ra4 or .ra5 */
1117             p_peek += 4;                                       /* data size */
1118             p_peek += 2;                                /* version (4 or 5) */
1119             i_header_size = GetDWBE( p_peek ); p_peek += 4;   /* header size */
1120             i_flavor = GetWBE( p_peek ); p_peek += 2;        /* codec flavor */
1121             i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4; /* coded frame size*/
1122             p_peek += 4;                                               /* ?? */
1123             p_peek += 4;                                               /* ?? */
1124             p_peek += 4;                                               /* ?? */
1125             i_subpacket_h = GetWBE( p_peek ); p_peek += 2;              /* 1 */
1126             i_frame_size = GetWBE( p_peek ); p_peek += 2;      /* frame size */
1127             i_subpacket_size = GetWBE( p_peek ); p_peek += 2;  /* subpacket_size */
1128             if( !i_subpacket_size || !i_frame_size || !i_coded_frame_size )
1129                  return VLC_EGENERIC;
1130             p_peek += 2;                                               /* ?? */
1131
1132             if( i_version == 5 ) p_peek += 6;                 /* 0, srate, 0 */
1133
1134             fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2; /* Sample Rate */
1135             p_peek += 2;                                               /* ?? */
1136             fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2;/* Sure?*/
1137             fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2; /* Channels */
1138             fmt.audio.i_blockalign = i_frame_size;
1139
1140             if( i_version == 5 )
1141             {
1142                 memcpy( (char *)p_genr, p_peek, 4 ); p_peek += 4;    /* genr */
1143                 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1144             }
1145             else
1146             {
1147                 p_peek += p_peek[0] + 1;                          /* descr 1 */
1148                 memcpy( (char *)&fmt.i_codec, p_peek + 1, 4 );    /* descr 2 */
1149                 p_peek += p_peek[0] + 1;
1150             }
1151
1152             msg_Dbg( p_demux, "    - audio codec=%4.4s channels=%d rate=%dHz",
1153                  (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1154
1155             p_peek += 3;                                               /* ?? */
1156             if( i_version == 5 ) p_peek++;
1157             /* Extra Data then: DWord + byte[] */
1158             fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
1159         }
1160
1161         switch( fmt.i_codec )
1162         {
1163         case VLC_FOURCC('1','4','_','4'):
1164             /* fmt.audio.i_blockalign = 0x14 */
1165             break;
1166         case VLC_FOURCC('l','p','c','J'):
1167             /* fmt.audio.i_blockalign = 0x14 */
1168             fmt.i_codec = VLC_FOURCC( '1','4','_','4' );
1169             break;
1170
1171         case VLC_FOURCC('2','8','_','8'):
1172             fmt.i_extra = 0;
1173             fmt.audio.i_blockalign = i_coded_frame_size;
1174             break;
1175
1176         case VLC_FOURCC( 'd','n','e','t' ):
1177             fmt.i_codec = VLC_FOURCC( 'a','5','2',' ' );
1178             break;
1179
1180         case VLC_FOURCC( 'r','a','a','c' ):
1181         case VLC_FOURCC( 'r','a','c','p' ):
1182             fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1183
1184             if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
1185             if( fmt.i_extra > 0 )
1186             {
1187                 fmt.p_extra = malloc( fmt.i_extra );
1188                 if( fmt.p_extra == NULL )
1189                 {
1190                     msg_Err( p_demux, "Error in the extra data" );
1191                     return VLC_EGENERIC;
1192                 }
1193                 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1194             }
1195             break;
1196
1197         case VLC_FOURCC('s','i','p','r'):
1198             fmt.audio.i_flavor = i_flavor;
1199         case VLC_FOURCC('c','o','o','k'):
1200         case VLC_FOURCC('a','t','r','c'):
1201             if( !memcmp( p_genr, "genr", 4 ) )
1202                 fmt.audio.i_blockalign = i_subpacket_size;
1203             else
1204                 fmt.audio.i_blockalign = i_coded_frame_size;
1205
1206             if( fmt.i_extra > 0 )
1207             {
1208                 fmt.p_extra = malloc( fmt.i_extra );
1209                 if( fmt.p_extra == NULL )
1210                 {
1211                     msg_Err( p_demux, "Error in the extra data" );
1212                     return VLC_EGENERIC;
1213                 }
1214                 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1215             }
1216             break;
1217
1218         case VLC_FOURCC('r','a','l','f'):
1219             msg_Dbg( p_demux, "    - audio codec not supported=%4.4s",
1220                      (char*)&fmt.i_codec );
1221             break;
1222
1223         default:
1224             msg_Dbg( p_demux, "    - unknown audio codec=%4.4s",
1225                      (char*)&fmt.i_codec );
1226             break;
1227         }
1228
1229         if( fmt.i_codec != 0 )
1230         {
1231             msg_Dbg( p_demux, "        - extra data=%d", fmt.i_extra );
1232
1233             tk = malloc( sizeof( real_track_t ) );
1234             tk->i_id = i_num;
1235             tk->fmt = fmt;
1236             tk->i_frame = 0;
1237             tk->p_frame = NULL;
1238
1239             tk->i_subpacket_h = i_subpacket_h;
1240             tk->i_subpacket_size = i_subpacket_size;
1241             tk->i_coded_frame_size = i_coded_frame_size;
1242             tk->i_frame_size = i_frame_size;
1243
1244             tk->i_out_subpacket = 0;
1245             tk->i_subpacket = 0;
1246             tk->i_subpackets = 0;
1247             tk->p_subpackets = NULL;
1248             if( fmt.i_codec == VLC_FOURCC('c','o','o','k')
1249              || fmt.i_codec == VLC_FOURCC('a','t','r','c') )
1250             {
1251                 tk->i_subpackets =
1252                     i_subpacket_h * i_frame_size / tk->i_subpacket_size;
1253                 tk->p_subpackets =
1254                     calloc( tk->i_subpackets, sizeof(block_t *) );
1255             }
1256             else if( fmt.i_codec == VLC_FOURCC('2','8','_','8') )
1257             {
1258                 tk->i_subpackets =
1259                     i_subpacket_h * i_frame_size / tk->i_coded_frame_size;
1260                 tk->p_subpackets =
1261                     calloc( tk->i_subpackets, sizeof(block_t *) );
1262             }
1263
1264             /* Check if the calloc went correctly */
1265             if( tk->p_subpackets == NULL )
1266             {
1267                 tk->i_subpackets = 0;
1268                 msg_Err( p_demux, "Can't alloc subpacket" );
1269                 return VLC_EGENERIC;
1270             }
1271
1272             tk->p_es = es_out_Add( p_demux->out, &fmt );
1273
1274             TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1275         }
1276     }
1277
1278     return VLC_SUCCESS;
1279 }