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