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