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ffmpeg: targetos must now be in lower case.
[vlc.git] / modules / demux / real.c
blob441d93174063ccb56554eb9ea8031f2c52d98cff
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_demux.h>
33 #include <vlc_charset.h>
34 #include <vlc_meta.h>
35
36 /*****************************************************************************
37 * Module descriptor
38 *****************************************************************************/
39 static int Open ( vlc_object_t * );
40 static void Close ( vlc_object_t * );
41
42 vlc_module_begin();
43 set_description( _("Real demuxer" ) );
44 set_capability( "demux2", 15 );
45 set_category( CAT_INPUT );
46 set_subcategory( SUBCAT_INPUT_DEMUX );
47 set_callbacks( Open, Close );
48 add_shortcut( "real" );
49 add_shortcut( "rm" );
50 vlc_module_end();
51
52 /*****************************************************************************
53 * Local prototypes
54 *****************************************************************************/
55
56 typedef struct
57 {
58 int i_id;
59 es_format_t fmt;
60
61 es_out_id_t *p_es;
62
63 int i_frame;
64 block_t *p_frame;
65
66 int i_subpacket_h;
67 int i_subpacket_size;
68 int i_coded_frame_size;
69 int i_frame_size;
70
71 int i_subpacket;
72 int i_subpackets;
73 block_t **p_subpackets;
74 int i_out_subpacket;
75
76 } real_track_t;
77
78 struct demux_sys_t
79 {
80 int64_t i_data_offset;
81 int64_t i_data_size;
82 uint32_t i_data_packets_count;
83 uint32_t i_data_packets;
84 int64_t i_data_offset_next;
85
86 int i_our_duration;
87 int i_mux_rate;
88
89 char* psz_title;
90 char* psz_artist;
91 char* psz_copyright;
92 char* psz_description;
93
94 int i_track;
95 real_track_t **track;
96
97 uint8_t buffer[65536];
98
99 int64_t i_pcr;
100 };
101
102 static int Demux( demux_t *p_demux );
103 static int Control( demux_t *p_demux, int i_query, va_list args );
104
105 static int HeaderRead( demux_t *p_demux );
106 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num );
107
108 /*****************************************************************************
109 * Open
110 *****************************************************************************/
111 static int Open( vlc_object_t *p_this )
112 {
113 demux_t *p_demux = (demux_t*)p_this;
114 demux_sys_t *p_sys;
115
116 uint8_t *p_peek;
117
118 if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return VLC_EGENERIC;
119 if( strncmp( (char *)p_peek, ".RMF", 4 ) ) return VLC_EGENERIC;
120
121 /* Fill p_demux field */
122 p_demux->pf_demux = Demux;
123 p_demux->pf_control = Control;
124 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
125 memset( p_sys, 0, sizeof( demux_sys_t ) );
126 p_sys->i_data_offset = 0;
127 p_sys->i_track = 0;
128 p_sys->track = NULL;
129 p_sys->i_pcr = 1;
130
131
132 /* Parse the headers */
133 if( HeaderRead( p_demux ) )
134 {
135 int i;
136 msg_Err( p_demux, "invalid header" );
137 for( i = 0; i < p_sys->i_track; i++ )
138 {
139 real_track_t *tk = p_sys->track[i];
140
141 if( tk->p_es )
142 {
143 es_out_Del( p_demux->out, tk->p_es );
144 }
145 free( tk );
146 }
147 if( p_sys->i_track > 0 )
148 {
149 free( p_sys->track );
150 }
151 free( p_sys );
152 return VLC_EGENERIC;
153 }
154
155 return VLC_SUCCESS;
156 }
157
158 /*****************************************************************************
159 * Close
160 *****************************************************************************/
161 static void Close( vlc_object_t *p_this )
162 {
163 demux_t *p_demux = (demux_t*)p_this;
164 demux_sys_t *p_sys = p_demux->p_sys;
165 int i;
166
167 for( i = 0; i < p_sys->i_track; i++ )
168 {
169 real_track_t *tk = p_sys->track[i];
170 int j = tk->i_subpackets;
171
172 if( tk->p_frame ) block_Release( tk->p_frame );
173 es_format_Clean( &tk->fmt );
174
175 while( j-- )
176 {
177 if( tk->p_subpackets[ j ] )
178 block_Release( tk->p_subpackets[ j ] );
179 }
180 if( tk->i_subpackets ) free( tk->p_subpackets );
181
182 free( tk );
183 }
184
185 if( p_sys->psz_title ) free( p_sys->psz_title );
186 if( p_sys->psz_artist ) free( p_sys->psz_artist );
187 if( p_sys->psz_copyright ) free( p_sys->psz_copyright );
188 if( p_sys->psz_description ) free( p_sys->psz_description );
189
190 if( p_sys->i_track > 0 ) free( p_sys->track );
191 free( p_sys );
192 }
193
194
195 /*****************************************************************************
196 * Demux:
197 *****************************************************************************/
198 static int Demux( demux_t *p_demux )
199 {
200 demux_sys_t *p_sys = p_demux->p_sys;
201 uint8_t header[18];
202 int i_size, i_id, i_flags, i;
203 int64_t i_pts;
204 real_track_t *tk = NULL;
205 vlc_bool_t b_selected;
206
207 if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
208 p_sys->i_data_packets_count )
209 {
210 if( stream_Read( p_demux->s, header, 18 ) < 18 )
211 {
212 return 0;
213 }
214 if( strncmp( (char *)header, "DATA", 4 ) )
215 {
216 return 0;
217 }
218 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
219 p_sys->i_data_size = GetDWBE( &header[4] );
220 p_sys->i_data_packets_count = GetDWBE( &header[10] );
221 p_sys->i_data_packets = 0;
222 p_sys->i_data_offset_next = GetDWBE( &header[14] );
223
224 msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
225 p_sys->i_data_packets_count,
226 (uint32_t)p_sys->i_data_offset_next );
227 }
228
229 if( stream_Read( p_demux->s, header, 12 ) < 12 ) return 0;
230
231 i_size = GetWBE( &header[2] ) - 12;
232 i_id = GetWBE( &header[4] );
233 i_pts = 1000 * GetDWBE( &header[6] );
234 i_pts += 1000; /* Avoid 0 pts */
235 i_flags= header[11]; /* flags 0x02 -> keyframe */
236
237 #if 0
238 msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
239 p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
240 #endif
241
242 p_sys->i_data_packets++;
243
244 stream_Read( p_demux->s, p_sys->buffer, i_size );
245
246 for( i = 0; i < p_sys->i_track; i++ )
247 {
248 if( p_sys->track[i]->i_id == i_id ) tk = p_sys->track[i];
249 }
250
251 if( tk == NULL )
252 {
253 msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
254 return 1;
255 }
256 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
257
258 if( tk->fmt.i_cat == VIDEO_ES && b_selected )
259 {
260 uint8_t *p = p_sys->buffer;
261
262 while( p < &p_sys->buffer[i_size - 2] )
263 {
264 uint8_t h = *p++;
265 int i_len = 0;
266 int i_copy;
267 int i_subseq = 0;
268 int i_seqnum = 0;
269 int i_offset = 0;
270
271 if( (h&0xc0) == 0x40 )
272 {
273 /* Short header */
274 p++;
275 i_len = &p_sys->buffer[i_size] - p;
276 }
277 else
278 {
279 if( (h&0x40) == 0 )
280 {
281 i_subseq = (*p++)&0x7f;
282 }
283 i_len = (p[0] << 8)|p[1]; p += 2;
284 if( (i_len&0xc000) == 0 )
285 {
286 i_len <<= 16;
287 i_len |= (p[0] << 8)|p[1]; p += 2;
288 i_len &= 0x3fffffff;
289 }
290 else
291 {
292 i_len &= 0x3fff;
293 }
294
295 i_offset = (p[0] << 8)|p[1]; p += 2;
296 if( (i_offset&0xc000) == 0 )
297 {
298 i_offset <<= 16;
299 i_offset |= (p[0] << 8)|p[1]; p += 2;
300 i_offset &= 0x3fffffff;
301 }
302 else
303 {
304 i_offset &= 0x3fff;
305 }
306 i_seqnum = *p++;
307 }
308
309 i_copy = i_len - i_offset;
310 if( i_copy > &p_sys->buffer[i_size] - p )
311 {
312 i_copy = &p_sys->buffer[i_size] - p;
313 }
314 else if( i_copy < 0 )
315 {
316 break;
317 }
318
319 msg_Dbg( p_demux, " - len=%d offset=%d size=%d subseq=%d seqnum=%d",
320 i_len, i_offset, i_copy, i_subseq, i_seqnum );
321
322 if( (h&0xc0) == 0x80 )
323 {
324 /* last fragment -> fixes */
325 i_copy = i_offset;
326 i_offset = i_len - i_copy;
327 msg_Dbg( p_demux, "last fixing copy=%d offset=%d",
328 i_copy, i_offset );
329 }
330
331 if( tk->p_frame &&
332 ( tk->p_frame->i_dts != i_pts ||
333 tk->i_frame != i_len ) )
334 {
335 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
336
337 if( p_sys->i_pcr < tk->p_frame->i_dts )
338 {
339 p_sys->i_pcr = tk->p_frame->i_dts;
340
341 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
342 (int64_t)p_sys->i_pcr );
343 }
344 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
345
346 tk->i_frame = 0;
347 tk->p_frame = NULL;
348 }
349
350 if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && !tk->p_frame )
351 {
352 /* no fragment */
353 i_len = i_copy;
354 i_offset = 0;
355 }
356
357
358 if( tk->p_frame == NULL )
359 {
360 msg_Dbg( p_demux, "new frame size=%d", i_len );
361 tk->i_frame = i_len;
362 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
363 {
364 return -1;
365 }
366 memset( &tk->p_frame->p_buffer[8], 0, i_len );
367 tk->p_frame->i_dts = i_pts;
368 tk->p_frame->i_pts = i_pts;
369
370 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
371 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0; /* chunk counts */
372 }
373
374 if( i_offset < tk->i_frame)
375 {
376 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
377
378 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d",
379 i_ck, i_offset, i_copy );
380
381 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
382
383 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
384 }
385
386 p += i_copy;
387
388 if( (h&0xc0) != 0x80 )
389 {
390 break;
391 }
392
393 #if 0
394 if( tk->p_frame )
395 {
396 /* append data */
397 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
398
399 if( (h&0xc0) == 0x80 )
400 {
401 /* last fragment */
402 i_copy = i_offset;
403 i_offset = i_len - i_offset;
404
405 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
406 memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
407 p += i_copy;
408
409 if( p_sys->i_pcr < tk->p_frame->i_dts )
410 {
411 p_sys->i_pcr = tk->p_frame->i_dts;
412 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
413 (int64_t)p_sys->i_pcr );
414 }
415 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
416
417 tk->i_frame = 0;
418 tk->p_frame = NULL;
419
420 continue;
421 }
422
423 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
424 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
425 break;
426 }
427
428 if( (h&0xc0) != 0x00 )
429 {
430 block_t *p_frame;
431
432 /* not fragmented */
433 if( !( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) )
434 {
435 return -1;
436 }
437 p_frame->i_dts = i_pts;
438 p_frame->i_pts = i_pts;
439
440 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
441 ((uint32_t*)p_frame->p_buffer)[1] = 1;
442 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
443 memcpy( &p_frame->p_buffer[8], p, i_copy );
444
445 p += i_copy;
446
447 if( p_sys->i_pcr < p_frame->i_dts )
448 {
449 p_sys->i_pcr = p_frame->i_dts;
450 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
451 (int64_t)p_sys->i_pcr );
452 }
453 es_out_Send( p_demux->out, tk->p_es, p_frame );
454 }
455 else
456 {
457 /* First fragment */
458 tk->i_frame = i_len;
459 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
460 {
461 return -1;
462 }
463 memset( &tk->p_frame->p_buffer[8], 0, i_len );
464 tk->p_frame->i_dts = i_pts;
465 tk->p_frame->i_pts = i_pts;
466
467 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
468 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1; /* chunk counts */
469 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
470 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
471
472 break;
473 }
474 #endif
475 }
476 }
477 else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
478 {
479 /* Set PCR */
480 if( p_sys->i_pcr < i_pts )
481 {
482 p_sys->i_pcr = i_pts;
483 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
484 (int64_t)p_sys->i_pcr );
485 }
486
487 if( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', '4', 'a' ) )
488 {
489 int i_sub = (p_sys->buffer[1] >> 4)&0x0f;
490 uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
491
492 int i;
493 for( i = 0; i < i_sub; i++ )
494 {
495 int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
496 block_t *p_block = block_New( p_demux, i_sub_size );
497 if( p_block )
498 {
499 memcpy( p_block->p_buffer, p_sub, i_sub_size );
500 p_sub += i_sub_size;
501
502 p_block->i_dts =
503 p_block->i_pts = ( i == 0 ? i_pts : 0 );
504
505 es_out_Send( p_demux->out, tk->p_es, p_block );
506 }
507 }
508 }
509 else if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
510 tk->fmt.i_codec == VLC_FOURCC('2','8','_','8') )
511 {
512 uint8_t *p_buf = p_sys->buffer;
513 int y = tk->i_subpacket / (tk->i_frame_size /tk->i_subpacket_size);
514 int i_index, i;
515
516 /* Sanity check */
517 if( i_flags & 2 ) y = tk->i_subpacket = 0;
518
519 if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) )
520 for( i = 0; i < tk->i_frame_size / tk->i_subpacket_size; i++ )
521 {
522 block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
523 memcpy( p_block->p_buffer, p_buf, tk->i_subpacket_size );
524 p_buf += tk->i_subpacket_size;
525
526 i_index = tk->i_subpacket_h * i +
527 ((tk->i_subpacket_h + 1) / 2) * (y&1) + (y>>1);
528
529 p_block->i_dts = p_block->i_pts = i_pts;
530 tk->p_subpackets[i_index] = p_block;
531 tk->i_subpacket++;
532 }
533
534 if( tk->fmt.i_codec == VLC_FOURCC('2','8','_','8') )
535 for( i = 0; i < tk->i_subpacket_h / 2; i++ )
536 {
537 block_t *p_block = block_New( p_demux, tk->i_coded_frame_size);
538 memcpy( p_block->p_buffer, p_buf, tk->i_coded_frame_size );
539 p_buf += tk->i_coded_frame_size;
540
541 i_index = (i * 2 * tk->i_frame_size) /
542 tk->i_coded_frame_size + y;
543
544 p_block->i_dts = p_block->i_pts = i_pts;
545 tk->p_subpackets[i_index] = p_block;
546 tk->i_subpacket++;
547 }
548
549 while( tk->i_out_subpacket != tk->i_subpackets &&
550 tk->p_subpackets[tk->i_out_subpacket] )
551 {
552 block_t *p_block = tk->p_subpackets[tk->i_out_subpacket];
553 tk->p_subpackets[tk->i_out_subpacket] = 0;
554
555 if( tk->i_out_subpacket ) p_block->i_dts = p_block->i_pts = 0;
556 es_out_Send( p_demux->out, tk->p_es, p_block );
557
558 tk->i_out_subpacket++;
559 }
560
561 if( tk->i_subpacket == tk->i_subpackets &&
562 tk->i_out_subpacket != tk->i_subpackets )
563 {
564 msg_Warn( p_demux, "i_subpacket != i_out_subpacket, "
565 "this shouldn't happen" );
566 }
567
568 if( tk->i_subpacket == tk->i_subpackets )
569 {
570 tk->i_subpacket = 0;
571 tk->i_out_subpacket = 0;
572 }
573 }
574 else
575 {
576 block_t *p_block = block_New( p_demux, i_size );
577
578 if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
579 {
580 uint8_t *src = p_sys->buffer;
581 uint8_t *dst = p_block->p_buffer;
582
583 /* byte swap data */
584 while( dst < &p_block->p_buffer[i_size- 1])
585 {
586 *dst++ = src[1];
587 *dst++ = src[0];
588
589 src += 2;
590 }
591 }
592 else
593 {
594 memcpy( p_block->p_buffer, p_sys->buffer, i_size );
595 }
596 p_block->i_dts = p_block->i_pts = i_pts;
597 es_out_Send( p_demux->out, tk->p_es, p_block );
598 }
599 }
600
601
602 return 1;
603 }
604
605 /*****************************************************************************
606 * Control:
607 *****************************************************************************/
608 static int Control( demux_t *p_demux, int i_query, va_list args )
609 {
610 demux_sys_t *p_sys = p_demux->p_sys;
611 #if 0
612 double f, *pf;
613 int64_t i64;
614 #endif
615 int64_t *pi64;
616
617 switch( i_query )
618 {
619 #if 0
620 case DEMUX_GET_POSITION:
621 pf = (double*) va_arg( args, double* );
622 i64 = stream_Size( p_demux->s );
623 if( i64 > 0 )
624 {
625 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
626 }
627 else
628 {
629 *pf = 0.0;
630 }
631 return VLC_SUCCESS;
632
633 case DEMUX_SET_POSITION:
634 f = (double) va_arg( args, double );
635 i64 = stream_Size( p_demux->s );
636
637 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
638
639 return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
640
641 case DEMUX_GET_TIME:
642 pi64 = (int64_t*)va_arg( args, int64_t * );
643 if( p_sys->i_mux_rate > 0 )
644 {
645 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
646 return VLC_SUCCESS;
647 }
648 *pi64 = 0;
649 return VLC_EGENERIC;
650 #endif
651
652 case DEMUX_GET_LENGTH:
653 pi64 = (int64_t*)va_arg( args, int64_t * );
654
655 /* the commented following lines are fen's implementation, which doesn't seem to
656 * work for one reason or another -- FK */
657 /*if( p_sys->i_mux_rate > 0 )
658 {
659 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
660 return VLC_SUCCESS;
661 }*/
662 if( p_sys->i_our_duration > 0 )
663 {
664 /* our stored duration is in ms, so... */
665 *pi64 = (int64_t)1000 * p_sys->i_our_duration;
666
667 return VLC_SUCCESS;
668 }
669 *pi64 = 0;
670 return VLC_EGENERIC;
671
672 case DEMUX_GET_META:
673 {
674 vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t* );
675
676 /* the core will crash if we provide NULL strings, so check
677 * every string first */
678 if( p_sys->psz_title )
679 vlc_meta_SetTitle( p_meta, p_sys->psz_title );
680 if( p_sys->psz_artist )
681 vlc_meta_SetArtist( p_meta, p_sys->psz_artist );
682 if( p_sys->psz_copyright )
683 vlc_meta_SetCopyright( p_meta, p_sys->psz_copyright );
684 if( p_sys->psz_description )
685 vlc_meta_SetDescription( p_meta, p_sys->psz_description );
686 return VLC_SUCCESS;
687 }
688
689 case DEMUX_SET_TIME:
690 case DEMUX_GET_FPS:
691 default:
692 return VLC_EGENERIC;
693 }
694 return VLC_EGENERIC;
695 }
696
697 /*****************************************************************************
698 * HeaderRead:
699 *****************************************************************************/
700 static int HeaderRead( demux_t *p_demux )
701 {
702 demux_sys_t *p_sys = p_demux->p_sys;
703 uint8_t header[100]; /* FIXME */
704
705 uint32_t i_id;
706 uint32_t i_size;
707 int64_t i_skip;
708 int i_version;
709
710 for( ;; )
711 {
712 /* Read the header */
713 if( stream_Read( p_demux->s, header, 10 ) < 10 )
714 {
715 return VLC_EGENERIC;
716 }
717 i_id = VLC_FOURCC( header[0], header[1], header[2], header[3] );
718 i_size = GetDWBE( &header[4] );
719 i_version = GetWBE( &header[8] );
720
721 msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
722 (char*)&i_id, i_size, i_version );
723
724 if( i_size < 10 && i_id != VLC_FOURCC('D','A','T','A') )
725 {
726 msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
727 return VLC_EGENERIC;
728 }
729 i_skip = i_size - 10;
730
731 if( i_id == VLC_FOURCC('.','R','M','F') )
732 {
733 if( stream_Read( p_demux->s, header, 8 ) < 8 ) return VLC_EGENERIC;
734 msg_Dbg( p_demux, " - file version=0x%x num headers=%d",
735 GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
736
737 i_skip -= 8;
738 }
739 else if( i_id == VLC_FOURCC('P','R','O','P') )
740 {
741 int i_flags;
742
743 if( stream_Read(p_demux->s, header, 40) < 40 ) return VLC_EGENERIC;
744
745 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
746 GetDWBE(&header[0]), GetDWBE(&header[4]) );
747 msg_Dbg( p_demux, " - max packet size=%d avg bitrate=%d",
748 GetDWBE(&header[8]), GetDWBE(&header[12]) );
749 msg_Dbg( p_demux, " - packets count=%d", GetDWBE(&header[16]) );
750 msg_Dbg( p_demux, " - duration=%d ms", GetDWBE(&header[20]) );
751 msg_Dbg( p_demux, " - preroll=%d ms", GetDWBE(&header[24]) );
752 msg_Dbg( p_demux, " - index offset=%d", GetDWBE(&header[28]) );
753 msg_Dbg( p_demux, " - data offset=%d", GetDWBE(&header[32]) );
754 msg_Dbg( p_demux, " - num streams=%d", GetWBE(&header[36]) );
755
756 /* set the duration for export in control */
757 p_sys->i_our_duration = (int)GetDWBE(&header[20]);
758
759 i_flags = GetWBE(&header[38]);
760 msg_Dbg( p_demux, " - flags=0x%x %s%s%s",
761 i_flags,
762 i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
763 i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
764 i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
765 i_skip -= 40;
766 }
767 else if( i_id == VLC_FOURCC('C','O','N','T') )
768 {
769 int i_len;
770 char *psz;
771
772 /* FIXME FIXME: should convert from whatever the character
773 * encoding of the input meta data is to UTF-8. */
774
775 stream_Read( p_demux->s, header, 2 );
776 if( ( i_len = GetWBE( header ) ) > 0 )
777 {
778 psz = malloc( i_len + 1 );
779 stream_Read( p_demux->s, psz, i_len );
780 psz[i_len] = '\0';
781
782 msg_Dbg( p_demux, " - title=`%s'", psz );
783 EnsureUTF8( psz );
784 asprintf( &p_sys->psz_title, psz );
785 free( psz );
786 i_skip -= i_len;
787 }
788 i_skip -= 2;
789
790 stream_Read( p_demux->s, header, 2 );
791 if( ( i_len = GetWBE( header ) ) > 0 )
792 {
793 psz = malloc( i_len + 1 );
794 stream_Read( p_demux->s, psz, i_len );
795 psz[i_len] = '\0';
796
797 msg_Dbg( p_demux, " - author=`%s'", psz );
798 EnsureUTF8( psz );
799 asprintf( &p_sys->psz_artist, psz );
800 free( psz );
801 i_skip -= i_len;
802 }
803 i_skip -= 2;
804
805 stream_Read( p_demux->s, header, 2 );
806 if( ( i_len = GetWBE( header ) ) > 0 )
807 {
808 psz = malloc( i_len + 1 );
809 stream_Read( p_demux->s, psz, i_len );
810 psz[i_len] = '\0';
811
812 msg_Dbg( p_demux, " - copyright=`%s'", psz );
813 EnsureUTF8( psz );
814 asprintf( &p_sys->psz_copyright, psz );
815 free( psz );
816 i_skip -= i_len;
817 }
818 i_skip -= 2;
819
820 stream_Read( p_demux->s, header, 2 );
821 if( ( i_len = GetWBE( header ) ) > 0 )
822 {
823 psz = malloc( i_len + 1 );
824 stream_Read( p_demux->s, psz, i_len );
825 psz[i_len] = '\0';
826
827 msg_Dbg( p_demux, " - comment=`%s'", psz );
828 EnsureUTF8( psz );
829 asprintf( &p_sys->psz_description, psz );
830 free( psz );
831 i_skip -= i_len;
832 }
833 i_skip -= 2;
834 }
835 else if( i_id == VLC_FOURCC('M','D','P','R') )
836 {
837 /* Media properties header */
838 int i_num;
839 int i_len;
840 char *psz;
841
842 if( stream_Read(p_demux->s, header, 30) < 30 ) return VLC_EGENERIC;
843 i_num = GetWBE( header );
844 msg_Dbg( p_demux, " - id=0x%x", i_num );
845 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
846 GetDWBE(&header[2]), GetDWBE(&header[6]) );
847 msg_Dbg( p_demux, " - max packet size=%d avg packet size=%d",
848 GetDWBE(&header[10]), GetDWBE(&header[14]) );
849 msg_Dbg( p_demux, " - start time=%d", GetDWBE(&header[18]) );
850 msg_Dbg( p_demux, " - preroll=%d", GetDWBE(&header[22]) );
851 msg_Dbg( p_demux, " - duration=%d", GetDWBE(&header[26]) );
852
853 i_skip -= 30;
854
855 stream_Read( p_demux->s, header, 1 );
856 if( ( i_len = header[0] ) > 0 )
857 {
858 psz = malloc( i_len + 1 );
859 stream_Read( p_demux->s, psz, i_len );
860 psz[i_len] = '\0';
861
862 msg_Dbg( p_demux, " - name=`%s'", psz );
863 free( psz );
864 i_skip -= i_len;
865 }
866 i_skip--;
867
868 stream_Read( p_demux->s, header, 1 );
869 if( ( i_len = header[0] ) > 0 )
870 {
871 psz = malloc( i_len + 1 );
872 stream_Read( p_demux->s, psz, i_len );
873 psz[i_len] = '\0';
874
875 msg_Dbg( p_demux, " - mime=`%s'", psz );
876 free( psz );
877 i_skip -= i_len;
878 }
879 i_skip--;
880
881 stream_Read( p_demux->s, header, 4 );
882 if( ( i_len = GetDWBE( header ) ) > 0 )
883 {
884 ReadCodecSpecificData( p_demux, i_len, i_num );
885 stream_Read( p_demux->s, NULL, i_len );
886
887 i_skip -= i_len;
888 }
889 i_skip -= 4;
890 }
891 else if( i_id == VLC_FOURCC('D','A','T','A') )
892 {
893 stream_Read( p_demux->s, header, 8 );
894
895 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 10;
896 p_sys->i_data_size = i_size;
897 p_sys->i_data_packets_count = GetDWBE( header );
898 p_sys->i_data_packets = 0;
899 p_sys->i_data_offset_next = GetDWBE( &header[4] );
900
901 msg_Dbg( p_demux, " - packets count=%d next=%u",
902 p_sys->i_data_packets_count,
903 (uint32_t)p_sys->i_data_offset_next );
904
905 /* we have finished the header */
906 break;
907 }
908 else
909 {
910 /* unknow header */
911 msg_Dbg( p_demux, "unknown chunk" );
912 }
913
914 if( i_skip < 0 ) return VLC_EGENERIC;
915 stream_Read( p_demux->s, NULL, i_skip );
916 }
917
918 /* TODO read index if possible */
919
920 return VLC_SUCCESS;
921 }
922
923 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
924 {
925 demux_sys_t *p_sys = p_demux->p_sys;
926 es_format_t fmt;
927 real_track_t *tk;
928 uint8_t *p_peek;
929
930 msg_Dbg( p_demux, " - specific data len=%d", i_len );
931 if( stream_Peek(p_demux->s, &p_peek, i_len) < i_len ) return VLC_EGENERIC;
932
933 if( !strncmp( (char *)&p_peek[4], "VIDO", 4 ) )
934 {
935 es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC( p_peek[8], p_peek[9],
936 p_peek[10], p_peek[11] ) );
937 fmt.video.i_width = GetWBE( &p_peek[12] );
938 fmt.video.i_height= GetWBE( &p_peek[14] );
939
940 fmt.i_extra = 8;
941 fmt.p_extra = malloc( 8 );
942 ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
943 ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
944
945 msg_Dbg( p_demux, " - video 0x%08x 0x%08x",
946 ((uint32_t*)fmt.p_extra)[0], ((uint32_t*)fmt.p_extra)[1] );
947
948 if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
949 GetDWBE( &p_peek[30] ) == 0x10003001 )
950 {
951 fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
952 }
953 else if( GetDWBE( &p_peek[30] ) == 0x20001000 ||
954 GetDWBE( &p_peek[30] ) == 0x20100001 ||
955 GetDWBE( &p_peek[30] ) == 0x20200002 )
956 {
957 fmt.i_codec = VLC_FOURCC( 'R','V','2','0' );
958 }
959 else if( GetDWBE( &p_peek[30] ) == 0x30202002 )
960 {
961 fmt.i_codec = VLC_FOURCC( 'R','V','3','0' );
962 }
963 else if( GetDWBE( &p_peek[30] ) == 0x40000000 )
964 {
965 fmt.i_codec = VLC_FOURCC( 'R','V','4','0' );
966 }
967
968 msg_Dbg( p_demux, " - video %4.4s %dx%d",
969 (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
970
971 tk = malloc( sizeof( real_track_t ) );
972 tk->i_out_subpacket = 0;
973 tk->i_subpacket = 0;
974 tk->i_subpackets = 0;
975 tk->p_subpackets = NULL;
976 tk->i_id = i_num;
977 tk->fmt = fmt;
978 tk->i_frame = 0;
979 tk->p_frame = NULL;
980 tk->p_es = es_out_Add( p_demux->out, &fmt );
981
982 TAB_APPEND( p_sys->i_track, p_sys->track, tk );
983 }
984 else if( !strncmp( (char *)p_peek, ".ra\xfd", 4 ) )
985 {
986 int i_version = GetWBE( &p_peek[4] );
987 int i_header_size, i_flavor, i_coded_frame_size, i_subpacket_h;
988 int i_frame_size, i_subpacket_size;
989
990 msg_Dbg( p_demux, " - audio version=%d", i_version );
991
992 p_peek += 6;
993 es_format_Init( &fmt, AUDIO_ES, 0 );
994
995 if( i_version == 3 )
996 {
997 msg_Dbg( p_demux, " - audio version 3 is not supported!" );
998 return VLC_EGENERIC;
999 }
1000
1001 p_peek += 2; /* 00 00 */
1002 p_peek += 4; /* .ra4 or .ra5 */
1003 p_peek += 4; /* ?? */
1004 p_peek += 2; /* version (4 or 5) */
1005 i_header_size = GetDWBE( p_peek ); p_peek += 4; /* header size */
1006 i_flavor = GetWBE( p_peek ); p_peek += 2; /* codec flavor */
1007 i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4;
1008 p_peek += 4; /* ?? */
1009 p_peek += 4; /* ?? */
1010 p_peek += 4; /* ?? */
1011 i_subpacket_h = GetWBE( p_peek ); p_peek += 2;
1012 i_frame_size = GetWBE( p_peek ); p_peek += 2;
1013 i_subpacket_size = GetWBE( p_peek ); p_peek += 2;
1014 p_peek += 2; /* ?? */
1015
1016 if( i_version == 5 ) p_peek += 6; /* 0, srate, 0 */
1017
1018 fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2;
1019 p_peek += 2; /* ?? */
1020 fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2;
1021 fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2;
1022 fmt.audio.i_blockalign = i_frame_size;
1023
1024 if( i_version == 5 )
1025 {
1026 p_peek += 4; /* genr */
1027 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1028 }
1029 else
1030 {
1031 p_peek += p_peek[0] + 1; /* descr 1 */
1032 memcpy( (char *)&fmt.i_codec, p_peek + 1, 4 ); /* descr 2 */
1033 p_peek += p_peek[0] + 1;
1034 }
1035
1036 msg_Dbg( p_demux, " - audio codec=%4.4s channels=%d rate=%dHz",
1037 (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1038
1039 p_peek += 3; /* ?? */
1040 if( i_version == 5 ) p_peek++;
1041
1042 switch( fmt.i_codec )
1043 {
1044 case VLC_FOURCC( 'd', 'n', 'e', 't' ):
1045 fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
1046 break;
1047
1048 case VLC_FOURCC( 'r', 'a', 'a', 'c' ):
1049 case VLC_FOURCC( 'r', 'a', 'c', 'p' ):
1050 fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
1051 if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
1052 if( fmt.i_extra > 0 )
1053 {
1054 fmt.p_extra = malloc( fmt.i_extra );
1055 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1056 }
1057
1058 fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
1059 break;
1060
1061 case VLC_FOURCC('c','o','o','k'):
1062 fmt.audio.i_blockalign = i_subpacket_size;
1063 if( !(fmt.i_extra = GetDWBE( p_peek )) ) break;
1064 fmt.p_extra = malloc( fmt.i_extra );
1065 memcpy( fmt.p_extra, p_peek + 4, fmt.i_extra );
1066 break;
1067
1068 case VLC_FOURCC('2','8','_','8'):
1069 fmt.audio.i_blockalign = i_coded_frame_size;
1070 break;
1071
1072 default:
1073 msg_Dbg( p_demux, " - unknown audio codec=%4.4s",
1074 (char*)&fmt.i_codec );
1075 break;
1076 }
1077
1078 if( fmt.i_codec != 0 )
1079 {
1080 int i;
1081
1082 msg_Dbg( p_demux, " - extra data=%d", fmt.i_extra );
1083
1084 tk = malloc( sizeof( real_track_t ) );
1085 tk->i_id = i_num;
1086 tk->fmt = fmt;
1087 tk->i_frame = 0;
1088 tk->p_frame = NULL;
1089
1090 tk->i_subpacket_h = i_subpacket_h;
1091 tk->i_subpacket_size = i_subpacket_size;
1092 tk->i_coded_frame_size = i_coded_frame_size;
1093 tk->i_frame_size = i_frame_size;
1094
1095 tk->i_out_subpacket = 0;
1096 tk->i_subpacket = 0;
1097 tk->i_subpackets = 0;
1098 tk->p_subpackets = NULL;
1099 if( fmt.i_codec == VLC_FOURCC('c','o','o','k') )
1100 {
1101 tk->i_subpackets =
1102 i_subpacket_h * i_frame_size / tk->i_subpacket_size;
1103 tk->p_subpackets =
1104 malloc( tk->i_subpackets * sizeof(block_t *) );
1105 }
1106 else if( fmt.i_codec == VLC_FOURCC('2','8','_','8') )
1107 {
1108 tk->i_subpackets =
1109 i_subpacket_h * i_frame_size / tk->i_coded_frame_size;
1110 tk->p_subpackets =
1111 malloc( tk->i_subpackets * sizeof(block_t *) );
1112 }
1113
1114 for( i = 0; i < tk->i_subpackets; i++ ) tk->p_subpackets[i] = NULL;
1115
1116 tk->p_es = es_out_Add( p_demux->out, &fmt );
1117
1118 TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1119 }
1120 }
1121
1122 return VLC_SUCCESS;
1123 }
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