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

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