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subassconvert: do not escape likely ASS override tags
[mplayer.git] / libmpdemux / demux_real.c
blobea9c3046e06a3669f27ef579c26810e8603d278c
1 /*
2 * Real parser & demuxer
3 * copyright (C) 2001 Alex Beregszaszi
4 * copyright (C) 2005, 2006 Roberto Togni
5 * based on FFmpeg's libav/rm.c
6 *
7 * audio codecs: (supported by RealPlayer8 for Linux)
8 * DNET - RealAudio 3.0, really it's AC3 in swapped-byteorder
9 * SIPR - SiproLab's audio codec, ACELP decoder working with MPlayer,
10 * needs fine-tuning too :)
11 * ATRC - RealAudio 8 (ATRAC3) - www.minidisc.org/atrac3_article.pdf,
12 * ACM decoder uploaded, needs some fine-tuning to work
13 * -> RealAudio 8
14 * COOK/COKR - Real Cooker -> RealAudio G2
15 *
16 * video codecs: (supported by RealPlayer8 for Linux)
17 * RV10 - H.263 based, working with libavcodec's decoder
18 * RV20-RV40 - using RealPlayer's codec plugins
19 *
20 * This file is part of MPlayer.
21 *
22 * MPlayer is free software; you can redistribute it and/or modify
23 * it under the terms of the GNU General Public License as published by
24 * the Free Software Foundation; either version 2 of the License, or
25 * (at your option) any later version.
26 *
27 * MPlayer is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
31 *
32 * You should have received a copy of the GNU General Public License along
33 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
34 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
35 */
36
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <unistd.h>
40 #include <inttypes.h>
41
42 #include <libavutil/intreadwrite.h>
43 #include <libavutil/common.h>
44
45 #include "config.h"
46 #include "mp_msg.h"
47 #include "mpbswap.h"
48 #include "stream/stream.h"
49 #include "aviprint.h"
50 #include "demuxer.h"
51 #include "stheader.h"
52 #include "demux_real.h"
53
54 //#define mp_dbg(mod,lev, args... ) mp_msg_c((mod<<8)|lev, ## args )
55
56 #define MAX_STREAMS 32
57
58 static unsigned char sipr_swaps[38][2]={
59 {0,63},{1,22},{2,44},{3,90},{5,81},{7,31},{8,86},{9,58},{10,36},{12,68},
60 {13,39},{14,73},{15,53},{16,69},{17,57},{19,88},{20,34},{21,71},{24,46},
61 {25,94},{26,54},{28,75},{29,50},{32,70},{33,92},{35,74},{38,85},{40,56},
62 {42,87},{43,65},{45,59},{48,79},{49,93},{51,89},{55,95},{61,76},{67,83},
63 {77,80} };
64
65 typedef struct {
66 unsigned int timestamp;
67 int offset;
68 // int packetno;
69 // int len; /* only filled by our index generator */
70 // int flags; /* only filled by our index generator */
71 } real_index_table_t;
72
73 typedef struct {
74 /* for seeking */
75 int index_chunk_offset;
76 real_index_table_t *index_table[MAX_STREAMS];
77
78 // int *index_table[MAX_STREAMS];
79 int index_table_size[MAX_STREAMS];
80 int index_malloc_size[MAX_STREAMS];
81 int data_chunk_offset;
82 int num_of_packets;
83 int current_packet;
84
85 // need for seek
86 int audio_need_keyframe;
87 int video_after_seek;
88
89 int current_apacket;
90 int current_vpacket;
91
92 // timestamp correction:
93 int64_t kf_base;// timestamp of the prev. video keyframe
94 unsigned int kf_pts; // timestamp of next video keyframe
95 unsigned int a_pts; // previous audio timestamp
96 double v_pts; // previous video timestamp
97 unsigned long duration;
98
99 /* stream id table */
100 // int last_a_stream;
101 // int a_streams[MAX_STREAMS];
102 // int last_v_stream;
103 // int v_streams[MAX_STREAMS];
104
105 /**
106 * Used to demux multirate files
107 */
108 int is_multirate; ///< != 0 for multirate files
109 int str_data_offset[MAX_STREAMS]; ///< Data chunk offset for every audio/video stream
110 int audio_curpos; ///< Current file position for audio demuxing
111 int video_curpos; ///< Current file position for video demuxing
112 int a_num_of_packets; ///< Number of audio packets
113 int v_num_of_packets; ///< Number of video packets
114 int a_bitrate; ///< Audio bitrate
115 int v_bitrate; ///< Video bitrate
116 int stream_switch; ///< Flag used to switch audio/video demuxing
117
118 /**
119 * Used to reorder audio data
120 */
121 unsigned int intl_id[MAX_STREAMS]; ///< interleaver id, per stream
122 int sub_packet_size[MAX_STREAMS]; ///< sub packet size, per stream
123 int sub_packet_h[MAX_STREAMS]; ///< number of coded frames per block
124 int coded_framesize[MAX_STREAMS]; ///< coded frame size, per stream
125 int audiopk_size[MAX_STREAMS]; ///< audio packet size
126 unsigned char *audio_buf; ///< place to store reordered audio data
127 double *audio_timestamp; ///< timestamp for each audio packet
128 int sub_packet_cnt; ///< number of subpacket already received
129 int audio_filepos; ///< file position of first audio packet in block
130 } real_priv_t;
131
132 //! use at most 200 MB of memory for index, corresponds to around 25 million entries
133 #define MAX_INDEX_ENTRIES (200*1024*1024 / sizeof(real_index_table_t))
134
135 /* originally from FFmpeg */
136 static void get_str(int isbyte, demuxer_t *demuxer, char *buf, int buf_size)
137 {
138 int len;
139
140 if (isbyte)
141 len = stream_read_char(demuxer->stream);
142 else
143 len = stream_read_word(demuxer->stream);
144
145 stream_read(demuxer->stream, buf, (len > buf_size) ? buf_size : len);
146 if (len > buf_size)
147 stream_skip(demuxer->stream, len-buf_size);
148
149 mp_msg(MSGT_DEMUX, MSGL_V, "read_str: %d bytes read\n", len);
150 }
151
152 static void dump_index(demuxer_t *demuxer, int stream_id)
153 {
154 real_priv_t *priv = demuxer->priv;
155 real_index_table_t *index;
156 int i, entries;
157
158 if (!mp_msg_test(MSGT_DEMUX,MSGL_V))
159 return;
160
161 if ((unsigned)stream_id >= MAX_STREAMS)
162 return;
163
164 index = priv->index_table[stream_id];
165 entries = priv->index_table_size[stream_id];
166
167 mp_msg(MSGT_DEMUX, MSGL_V, "Index table for stream %d\n", stream_id);
168 for (i = 0; i < entries; i++)
169 {
170 #if 1
171 mp_msg(MSGT_DEMUX, MSGL_V,"i: %d, pos: %d, timestamp: %u\n", i, index[i].offset, index[i].timestamp);
172 #else
173 mp_msg(MSGT_DEMUX, MSGL_V,"packetno: %x pos: %x len: %x timestamp: %x flags: %x\n",
174 index[i].packetno, index[i].offset, index[i].len, index[i].timestamp,
175 index[i].flags);
176 #endif
177 }
178 }
179
180 static int parse_index_chunk(demuxer_t *demuxer)
181 {
182 real_priv_t *priv = demuxer->priv;
183 int origpos = stream_tell(demuxer->stream);
184 int next_header_pos = priv->index_chunk_offset;
185 int i, entries, stream_id;
186
187 read_index:
188 stream_seek(demuxer->stream, next_header_pos);
189
190 i = stream_read_dword_le(demuxer->stream);
191 if ((i == -256) || (i != MKTAG('I', 'N', 'D', 'X')))
192 {
193 mp_msg(MSGT_DEMUX, MSGL_WARN,"Something went wrong, no index chunk found on given address (%d)\n",
194 next_header_pos);
195 index_mode = -1;
196 if (i == -256)
197 stream_reset(demuxer->stream);
198 stream_seek(demuxer->stream, origpos);
199 return 0;
200 //goto end;
201 }
202
203 mp_msg(MSGT_DEMUX, MSGL_V,"Reading index table from index chunk (%d)\n",
204 next_header_pos);
205
206 i = stream_read_dword(demuxer->stream);
207 mp_msg(MSGT_DEMUX, MSGL_V,"size: %d bytes\n", i);
208
209 i = stream_read_word(demuxer->stream);
210 if (i != 0)
211 mp_msg(MSGT_DEMUX, MSGL_WARN,"Hmm, index table with unknown version (%d), please report it to MPlayer developers!\n", i);
212
213 entries = stream_read_dword(demuxer->stream);
214 mp_msg(MSGT_DEMUX, MSGL_V,"entries: %d\n", entries);
215
216 stream_id = stream_read_word(demuxer->stream);
217 mp_msg(MSGT_DEMUX, MSGL_V,"stream_id: %d\n", stream_id);
218
219 next_header_pos = stream_read_dword(demuxer->stream);
220 mp_msg(MSGT_DEMUX, MSGL_V,"next_header_pos: %d\n", next_header_pos);
221 if (entries <= 0 || entries > MAX_INDEX_ENTRIES)
222 {
223 if (next_header_pos)
224 goto read_index;
225 i = entries;
226 goto end;
227 }
228
229 priv->index_table_size[stream_id] = entries;
230 priv->index_table[stream_id] = calloc(priv->index_table_size[stream_id], sizeof(real_index_table_t));
231
232 for (i = 0; i < entries; i++)
233 {
234 stream_skip(demuxer->stream, 2); /* version */
235 priv->index_table[stream_id][i].timestamp = stream_read_dword(demuxer->stream);
236 priv->index_table[stream_id][i].offset = stream_read_dword(demuxer->stream);
237 stream_skip(demuxer->stream, 4); /* packetno */
238 // priv->index_table[stream_id][i].packetno = stream_read_dword(demuxer->stream);
239 // printf("Index table: Stream#%d: entry: %d: pos: %d\n",
240 // stream_id, i, priv->index_table[stream_id][i].offset);
241 }
242
243 dump_index(demuxer, stream_id);
244
245 if (next_header_pos > 0)
246 goto read_index;
247
248 end:
249 if (i == -256)
250 stream_reset(demuxer->stream);
251 stream_seek(demuxer->stream, origpos);
252 if (i == -256)
253 return 0;
254 else
255 return 1;
256 }
257
258 #if 1
259
260 static void add_index_item(demuxer_t *demuxer, int stream_id, unsigned int timestamp, int offset)
261 {
262 if ((unsigned)stream_id < MAX_STREAMS)
263 {
264 real_priv_t *priv = demuxer->priv;
265 real_index_table_t *index;
266 if (priv->index_table_size[stream_id] >= MAX_INDEX_ENTRIES) {
267 mp_msg(MSGT_DEMUXER, MSGL_WARN, "Index too large during building\n");
268 return;
269 }
270 if (priv->index_table_size[stream_id] >= priv->index_malloc_size[stream_id])
271 {
272 if (priv->index_malloc_size[stream_id] == 0)
273 priv->index_malloc_size[stream_id] = 2048;
274 else
275 priv->index_malloc_size[stream_id] += priv->index_malloc_size[stream_id] / 2;
276 // in case we have a really large chunk...
277 if (priv->index_table_size[stream_id] >=
278 priv->index_malloc_size[stream_id])
279 priv->index_malloc_size[stream_id] =
280 priv->index_table_size[stream_id] + 1;
281 priv->index_table[stream_id] = realloc(priv->index_table[stream_id], priv->index_malloc_size[stream_id]*sizeof(priv->index_table[0][0]));
282 }
283 if (priv->index_table_size[stream_id] > 0)
284 {
285 index = &priv->index_table[stream_id][priv->index_table_size[stream_id] - 1];
286 if (index->timestamp >= timestamp || index->offset >= offset)
287 return;
288 }
289 index = &priv->index_table[stream_id][priv->index_table_size[stream_id]++];
290 index->timestamp = timestamp;
291 index->offset = offset;
292 }
293 }
294
295 static void add_index_segment(demuxer_t *demuxer, int seek_stream_id, int64_t seek_timestamp)
296 {
297 int tag, len, stream_id, flags;
298 unsigned int timestamp;
299 if (seek_timestamp != -1 && (unsigned)seek_stream_id >= MAX_STREAMS)
300 return;
301 while (1)
302 {
303 demuxer->filepos = stream_tell(demuxer->stream);
304
305 tag = stream_read_dword(demuxer->stream);
306 if (tag == MKTAG('A', 'T', 'A', 'D'))
307 {
308 stream_skip(demuxer->stream, 14);
309 continue; /* skip to next loop */
310 }
311 len = tag & 0xffff;
312 if (tag == -256 || len < 12)
313 break;
314
315 stream_id = stream_read_word(demuxer->stream);
316 timestamp = stream_read_dword(demuxer->stream);
317
318 stream_skip(demuxer->stream, 1); /* reserved */
319 flags = stream_read_char(demuxer->stream);
320
321 if (flags == -256)
322 break;
323
324 if (flags & 2)
325 {
326 add_index_item(demuxer, stream_id, timestamp, demuxer->filepos);
327 if (stream_id == seek_stream_id && timestamp >= seek_timestamp)
328 {
329 stream_seek(demuxer->stream, demuxer->filepos);
330 return;
331 }
332 }
333 // printf("Index: stream=%d packet=%d timestamp=%u len=%d flags=0x%x datapos=0x%x\n", stream_id, entries, timestamp, len, flags, index->offset);
334 /* skip data */
335 stream_skip(demuxer->stream, len-12);
336 }
337 }
338
339 static int generate_index(demuxer_t *demuxer)
340 {
341 real_priv_t *priv = demuxer->priv;
342 int origpos = stream_tell(demuxer->stream);
343 int data_pos = priv->data_chunk_offset-10;
344 int i;
345 int tag;
346
347 stream_seek(demuxer->stream, data_pos);
348 tag = stream_read_dword(demuxer->stream);
349 if (tag != MKTAG('A', 'T', 'A', 'D'))
350 {
351 mp_msg(MSGT_DEMUX, MSGL_WARN,"Something went wrong, no data chunk found on given address (%d)\n", data_pos);
352 }
353 else
354 {
355 stream_skip(demuxer->stream, 14);
356 add_index_segment(demuxer, -1, -1);
357 }
358 for (i = 0; i < MAX_STREAMS; i++)
359 {
360 if (priv->index_table_size[i] > 0)
361 {
362 dump_index(demuxer, i);
363 }
364 }
365 stream_reset(demuxer->stream);
366 stream_seek(demuxer->stream, origpos);
367 return 0;
368 }
369
370 #else
371
372 static int generate_index(demuxer_t *demuxer)
373 {
374 real_priv_t *priv = demuxer->priv;
375 int origpos = stream_tell(demuxer->stream);
376 int data_pos = priv->data_chunk_offset-10;
377 int num_of_packets = 0;
378 int i, entries = 0;
379 int len, stream_id = 0, flags;
380 unsigned int timestamp;
381 int tab_pos = 0;
382
383 read_index:
384 stream_seek(demuxer->stream, data_pos);
385
386 i = stream_read_dword_le(demuxer->stream);
387 if ((i == -256) || (i != MKTAG('D', 'A', 'T', 'A')))
388 {
389 mp_msg(MSGT_DEMUX, MSGL_WARN,"Something went wrong, no data chunk found on given address (%d)\n",
390 data_pos);
391 goto end;
392 }
393 stream_skip(demuxer->stream, 4); /* chunk size */
394 stream_skip(demuxer->stream, 2); /* version */
395
396 num_of_packets = stream_read_dword(demuxer->stream);
397 mp_msg(MSGT_DEMUX, MSGL_V,"Generating index table from raw data (pos: 0x%x) for %d packets\n",
398 data_pos, num_of_packets);
399
400 data_pos = stream_read_dword_le(demuxer->stream)-10; /* next data chunk */
401
402 for (i = 0; i < MAX_STREAMS; i++)
403 {
404 priv->index_table_size[i] = num_of_packets;
405 priv->index_table[i] = calloc(priv->index_table_size[i], sizeof(real_index_table_t));
406 // priv->index_table[stream_id] = realloc(priv->index_table[stream_id],
407 // priv->index_table_size[stream_id] * sizeof(real_index_table_t));
408 }
409
410 tab_pos = 0;
411
412 // memset(priv->index_table_size, 0, sizeof(int)*MAX_STREAMS);
413 // memset(priv->index_table, 0, sizeof(real_index_table_t)*MAX_STREAMS);
414
415 while (tab_pos < num_of_packets)
416 {
417 i = stream_read_char(demuxer->stream);
418 if (i == -256)
419 goto end;
420 stream_skip(demuxer->stream, 1);
421 // stream_skip(demuxer->stream, 2); /* version */
422
423 len = stream_read_word(demuxer->stream);
424 stream_id = stream_read_word(demuxer->stream);
425 timestamp = stream_read_dword(demuxer->stream);
426
427 stream_skip(demuxer->stream, 1); /* reserved */
428 flags = stream_read_char(demuxer->stream);
429
430 i = tab_pos;
431
432 // priv->index_table_size[stream_id] = i;
433 // if (priv->index_table[stream_id] == NULL)
434 // priv->index_table[stream_id] = malloc(priv->index_table_size[stream_id] * sizeof(real_index_table_t));
435 // else
436 // priv->index_table[stream_id] = realloc(priv->index_table[stream_id],
437 // priv->index_table_size[stream_id] * sizeof(real_index_table_t));
438
439 priv->index_table[stream_id][i].timestamp = timestamp;
440 priv->index_table[stream_id][i].offset = stream_tell(demuxer->stream)-12;
441 priv->index_table[stream_id][i].len = len;
442 priv->index_table[stream_id][i].packetno = entries;
443 priv->index_table[stream_id][i].flags = flags;
444
445 tab_pos++;
446
447 /* skip data */
448 stream_skip(demuxer->stream, len-12);
449 }
450 dump_index(demuxer, stream_id);
451 if (data_pos)
452 goto read_index;
453
454 end:
455 if (i == -256)
456 stream_reset(demuxer->stream);
457 stream_seek(demuxer->stream, origpos);
458 if (i == -256)
459 return 0;
460 else
461 return 1;
462 }
463 #endif
464
465
466 static int real_check_file(demuxer_t* demuxer)
467 {
468 real_priv_t *priv;
469 int c;
470
471 mp_msg(MSGT_DEMUX,MSGL_V,"Checking for REAL\n");
472
473 c = stream_read_dword_le(demuxer->stream);
474 if (c == -256)
475 return 0; /* EOF */
476 if (c != MKTAG('.', 'R', 'M', 'F'))
477 return 0; /* bad magic */
478
479 priv = calloc(1, sizeof(real_priv_t));
480 demuxer->priv = priv;
481
482 return DEMUXER_TYPE_REAL;
483 }
484
485 #define SKIP_BITS(n) buffer<<=n
486 #define SHOW_BITS(n) ((buffer)>>(32-(n)))
487
488 double real_fix_timestamp(unsigned char *buf, unsigned int timestamp, unsigned int format, int64_t *kf_base, int *kf_pts, double *pts){
489 double v_pts;
490 unsigned char *s = buf + 1 + (*buf+1)*8;
491 uint32_t buffer= (s[0]<<24) + (s[1]<<16) + (s[2]<<8) + s[3];
492 unsigned int kf=timestamp;
493 int pict_type;
494 unsigned int orig_kf;
495
496 if(format==mmioFOURCC('R','V','3','0') || format==mmioFOURCC('R','V','4','0')){
497 if(format==mmioFOURCC('R','V','3','0')){
498 SKIP_BITS(3);
499 pict_type= SHOW_BITS(2);
500 SKIP_BITS(2 + 7);
501 }else{
502 SKIP_BITS(1);
503 pict_type= SHOW_BITS(2);
504 SKIP_BITS(2 + 7 + 3);
505 }
506 orig_kf=
507 kf= SHOW_BITS(13); // kf= 2*SHOW_BITS(12);
508 // if(pict_type==0)
509 if(pict_type<=1){
510 // I frame, sync timestamps:
511 *kf_base=(int64_t)timestamp-kf;
512 mp_msg(MSGT_DEMUX, MSGL_DBG2,"\nTS: base=%08"PRIX64"\n",*kf_base);
513 kf=timestamp;
514 } else {
515 // P/B frame, merge timestamps:
516 int64_t tmp=(int64_t)timestamp-*kf_base;
517 kf|=tmp&(~0x1fff); // combine with packet timestamp
518 if(kf<tmp-4096) kf+=8192; else // workaround wrap-around problems
519 if(kf>tmp+4096) kf-=8192;
520 kf+=*kf_base;
521 }
522 if(pict_type != 3){ // P || I frame -> swap timestamps
523 unsigned int tmp=kf;
524 kf=*kf_pts;
525 *kf_pts=tmp;
526 // if(kf<=tmp) kf=0;
527 }
528 mp_msg(MSGT_DEMUX, MSGL_DBG2,"\nTS: %08X -> %08X (%04X) %d %02X %02X %02X %02X %5u\n",timestamp,kf,orig_kf,pict_type,s[0],s[1],s[2],s[3],pts?kf-(unsigned int)(*pts*1000.0):0);
529 }
530 v_pts=kf*0.001f;
531 // if(pts && (v_pts<*pts || !kf)) v_pts=*pts+frametime;
532 if(pts) *pts=v_pts;
533 return v_pts;
534 }
535
536 typedef struct dp_hdr_s {
537 uint32_t chunks; // number of chunks
538 uint32_t timestamp; // timestamp from packet header
539 uint32_t len; // length of actual data
540 uint32_t chunktab; // offset to chunk offset array
541 } dp_hdr_t;
542
543 static void queue_video_packet(real_priv_t *priv, demux_stream_t *ds, demux_packet_t *dp)
544 {
545 dp_hdr_t hdr = *(dp_hdr_t*)dp->buffer;
546 unsigned char *tmp = malloc(8*(1+hdr.chunks));
547 memcpy(tmp, dp->buffer+hdr.chunktab, 8*(1+hdr.chunks));
548 memmove(dp->buffer+1+8*(1+hdr.chunks), dp->buffer+sizeof(dp_hdr_t), hdr.len);
549 memcpy(dp->buffer+1, tmp, 8*(1+hdr.chunks));
550 *dp->buffer = (uint8_t)hdr.chunks;
551 free(tmp);
552
553 if(priv->video_after_seek){
554 priv->kf_base = 0;
555 priv->kf_pts = hdr.timestamp;
556 priv->video_after_seek = 0;
557 }
558 if(hdr.len >= 3) /* this check may be useless */
559 dp->pts = real_fix_timestamp(dp->buffer, hdr.timestamp,
560 ((sh_video_t *)ds->sh)->format,
561 &priv->kf_base, &priv->kf_pts,
562 &priv->v_pts);
563 ds_add_packet(ds, dp);
564 }
565
566 // return value:
567 // 0 = EOF or no stream found
568 // 1 = successfully read a packet
569 static int demux_real_fill_buffer(demuxer_t *demuxer, demux_stream_t *dsds)
570 {
571 real_priv_t *priv = demuxer->priv;
572 demux_stream_t *ds = NULL;
573 int len;
574 unsigned int timestamp;
575 int stream_id;
576 #ifdef CRACK_MATRIX
577 int i;
578 #endif
579 int flags;
580 int version;
581 int reserved av_unused;
582 demux_packet_t *dp;
583 int x, sps, cfs, sph, spc, w;
584 int audioreorder_getnextpk = 0;
585
586 // Don't demux video if video codec init failed
587 if (demuxer->video->id >= 0 && !demuxer->video->sh)
588 demuxer->video->id = -2;
589
590 while(!stream_eof(demuxer->stream)){
591
592 /* Handle audio/video demxing switch for multirate files (non-interleaved) */
593 if (priv->is_multirate && priv->stream_switch) {
594 if (priv->current_apacket >= priv->index_table_size[demuxer->audio->id])
595 demuxer->audio->eof = 1;
596 if (priv->current_vpacket >= priv->index_table_size[demuxer->video->id])
597 demuxer->video->eof = 1;
598 if (demuxer->audio->eof && demuxer->video->eof)
599 return 0;
600 else if (!demuxer->audio->eof && demuxer->video->eof)
601 stream_seek(demuxer->stream, priv->audio_curpos); // Get audio
602 else if (demuxer->audio->eof && !demuxer->video->eof)
603 stream_seek(demuxer->stream, priv->video_curpos); // Get video
604 else if (priv->index_table[demuxer->audio->id][priv->current_apacket].timestamp <
605 priv->index_table[demuxer->video->id][priv->current_vpacket].timestamp)
606 stream_seek(demuxer->stream, priv->audio_curpos); // Get audio
607 else
608 stream_seek(demuxer->stream, priv->video_curpos); // Get video
609 priv->stream_switch = 0;
610 }
611
612 demuxer->filepos = stream_tell(demuxer->stream);
613 version = stream_read_word(demuxer->stream); /* version */
614 len = stream_read_word(demuxer->stream);
615 if ((version==0x4441) && (len==0x5441)) { // new data chunk
616 mp_msg(MSGT_DEMUX,MSGL_INFO,"demux_real: New data chunk is coming!!!\n");
617 if (priv->is_multirate)
618 return 0; // EOF
619 stream_skip(demuxer->stream,14);
620 demuxer->filepos = stream_tell(demuxer->stream);
621 version = stream_read_word(demuxer->stream); /* version */
622 len = stream_read_word(demuxer->stream);
623 } else if ((version == 0x494e) && (len == 0x4458)) {
624 mp_msg(MSGT_DEMUX,MSGL_V,"demux_real: Found INDX chunk. EOF.\n");
625 demuxer->stream->eof=1;
626 return 0;
627 }
628
629
630 if (len == -256){ /* EOF */
631 // printf("len==-256!\n");
632 return 0;
633 }
634 if (len < 12){
635 mp_msg(MSGT_DEMUX, MSGL_V,"%08X: packet v%d len=%d \n",(int)demuxer->filepos,(int)version,(int)len);
636 mp_msg(MSGT_DEMUX, MSGL_WARN,"bad packet len (%d)\n", len);
637 if ((unsigned)demuxer->video->id < MAX_STREAMS) {
638 if (priv->current_vpacket + 1 < priv->index_table_size[demuxer->video->id]) {
639 stream_seek(demuxer->stream, priv->index_table[demuxer->video->id][++priv->current_vpacket].offset);
640 }
641 } else if ((unsigned)demuxer->audio->id < MAX_STREAMS) {
642 if (priv->current_apacket + 1 < priv->index_table_size[demuxer->audio->id]) {
643 stream_seek(demuxer->stream, priv->index_table[demuxer->audio->id][++priv->current_apacket].offset);
644 }
645 }
646 continue; //goto loop;
647 }
648
649 stream_id = stream_read_word(demuxer->stream);
650 timestamp = stream_read_dword(demuxer->stream);
651 reserved = stream_read_char(demuxer->stream);
652 flags = stream_read_char(demuxer->stream);
653 /* flags: */
654 /* 0x1 - reliable */
655 /* 0x2 - keyframe */
656
657 if (version == 1) {
658 int tmp;
659 tmp = stream_read_char(demuxer->stream);
660 mp_msg(MSGT_DEMUX, MSGL_DBG2,"Version: %d, skipped byte is %d\n", version, tmp);
661 len--;
662 }
663
664 if (flags & 2)
665 add_index_item(demuxer, stream_id, timestamp, demuxer->filepos);
666
667 // printf("%08X: packet v%d len=%4d id=%d pts=%6d rvd=%d flags=%d \n",
668 // (int)demuxer->filepos,(int)version,(int)len, stream_id,
669 // (int) timestamp, reserved, flags);
670
671 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "\npacket#%d: pos: 0x%0x, len: %d, id: %d, pts: %u, flags: %x rvd:%d\n",
672 priv->current_packet, (int)demuxer->filepos, len, stream_id, timestamp, flags, reserved);
673
674 priv->current_packet++;
675 len -= 12;
676
677 // printf("s_id=%d aid=%d vid=%d \n",stream_id,demuxer->audio->id,demuxer->video->id);
678
679 /* check stream_id: */
680
681 if(demuxer->audio->id==stream_id){
682 if (priv->audio_need_keyframe == 1&& flags != 0x2)
683 goto discard;
684 got_audio:
685 ds=demuxer->audio;
686 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "packet is audio (id: %d)\n", stream_id);
687
688 if (flags & 2) {
689 priv->sub_packet_cnt = 0;
690 audioreorder_getnextpk = 0;
691 }
692
693 // parse audio chunk:
694 {
695 #ifdef CRACK_MATRIX
696 int spos=stream_tell(demuxer->stream);
697 static int cnt=0;
698 static int cnt2=CRACK_MATRIX;
699 #endif
700 if (((sh_audio_t *)ds->sh)->format == mmioFOURCC('M', 'P', '4', 'A')) {
701 uint16_t sub_packet_lengths[16], sub_packets, i;
702 int totlen = 0;
703 /* AAC in Real: several AAC frames in one Real packet. */
704 /* Second byte, upper four bits: number of AAC frames */
705 /* next n * 2 bytes: length of the AAC frames in bytes, BE */
706 if (len < 2)
707 goto discard;
708 sub_packets = (stream_read_word(demuxer->stream) & 0xf0) >> 4;
709 if (len < 2 * sub_packets)
710 goto discard;
711 for (i = 0; i < sub_packets; i++)
712 totlen += sub_packet_lengths[i] = stream_read_word(demuxer->stream);
713 if (len < totlen )
714 goto discard;
715 for (i = 0; i < sub_packets; i++) {
716 demux_packet_t *dp = new_demux_packet(sub_packet_lengths[i]);
717 stream_read(demuxer->stream, dp->buffer, sub_packet_lengths[i]);
718 if (priv->a_pts != timestamp)
719 dp->pts = timestamp / 1000.0;
720 priv->a_pts = timestamp;
721 dp->pos = demuxer->filepos;
722 ds_add_packet(ds, dp);
723 }
724 return 1;
725 }
726 if ((priv->intl_id[stream_id] == mmioFOURCC('I', 'n', 't', '4')) ||
727 (priv->intl_id[stream_id] == mmioFOURCC('g', 'e', 'n', 'r')) ||
728 (priv->intl_id[stream_id] == mmioFOURCC('s', 'i', 'p', 'r'))) {
729 sps = priv->sub_packet_size[stream_id];
730 sph = priv->sub_packet_h[stream_id];
731 cfs = priv->coded_framesize[stream_id];
732 w = priv->audiopk_size[stream_id];
733 spc = priv->sub_packet_cnt;
734 switch (priv->intl_id[stream_id]) {
735 case mmioFOURCC('I', 'n', 't', '4'):
736 if (len < cfs * sph/2)
737 goto discard;
738 for (x = 0; x < sph / 2; x++)
739 stream_read(demuxer->stream, priv->audio_buf + x * 2 * w + spc * cfs, cfs);
740 break;
741 case mmioFOURCC('g', 'e', 'n', 'r'):
742 if (len < w)
743 goto discard;
744 for (x = 0; x < w / sps; x++)
745 stream_read(demuxer->stream, priv->audio_buf + sps * (sph * x + ((sph + 1) / 2) * (spc & 1) +
746 (spc >> 1)), sps);
747 break;
748 case mmioFOURCC('s', 'i', 'p', 'r'):
749 if (len < w)
750 goto discard;
751 stream_read(demuxer->stream, priv->audio_buf + spc * w, w);
752 if (spc == sph - 1) {
753 int n;
754 int bs = sph * w * 2 / 96; // nibbles per subpacket
755 // Perform reordering
756 for(n=0; n < 38; n++) {
757 int j;
758 int i = bs * sipr_swaps[n][0];
759 int o = bs * sipr_swaps[n][1];
760 // swap nibbles of block 'i' with 'o' TODO: optimize
761 for(j = 0;j < bs; j++) {
762 int x = (i & 1) ? (priv->audio_buf[i >> 1] >> 4) : (priv->audio_buf[i >> 1] & 0x0F);
763 int y = (o & 1) ? (priv->audio_buf[o >> 1] >> 4) : (priv->audio_buf[o >> 1] & 0x0F);
764 if(o & 1)
765 priv->audio_buf[o >> 1] = (priv->audio_buf[o >> 1] & 0x0F) | (x << 4);
766 else
767 priv->audio_buf[o >> 1] = (priv->audio_buf[o >> 1] & 0xF0) | x;
768 if(i & 1)
769 priv->audio_buf[i >> 1] = (priv->audio_buf[i >> 1] & 0x0F) | (y << 4);
770 else
771 priv->audio_buf[i >> 1] = (priv->audio_buf[i >> 1] & 0xF0) | y;
772 ++i; ++o;
773 }
774 }
775 }
776 break;
777 }
778 priv->audio_need_keyframe = 0;
779 priv->audio_timestamp[priv->sub_packet_cnt] = (priv->a_pts==timestamp) ? MP_NOPTS_VALUE : (timestamp/1000.0);
780 priv->a_pts = timestamp;
781 if (priv->sub_packet_cnt == 0)
782 priv->audio_filepos = demuxer->filepos;
783 if (++(priv->sub_packet_cnt) < sph)
784 audioreorder_getnextpk = 1;
785 else {
786 int apk_usize = ((sh_audio_t*)ds->sh)->wf->nBlockAlign;
787 audioreorder_getnextpk = 0;
788 priv->sub_packet_cnt = 0;
789 // Release all the audio packets
790 for (x = 0; x < sph*w/apk_usize; x++) {
791 dp = new_demux_packet(apk_usize);
792 memcpy(dp->buffer, priv->audio_buf + x * apk_usize, apk_usize);
793 /* Put timestamp only on packets that correspond to original audio packets in file */
794 if (x * apk_usize % w == 0)
795 dp->pts = priv->audio_timestamp[x * apk_usize / w];
796 dp->pos = priv->audio_filepos; // all equal
797 dp->keyframe = !x; // Mark first packet as keyframe
798 ds_add_packet(ds, dp);
799 }
800 }
801 } else { // No interleaving
802 dp = new_demux_packet(len);
803 stream_read(demuxer->stream, dp->buffer, len);
804
805 #ifdef CRACK_MATRIX
806 mp_msg(MSGT_DEMUX, MSGL_V,"*** audio block len=%d\n",len);
807 { // HACK - used for reverse engineering the descrambling matrix
808 FILE* f=fopen("test.rm","r+");
809 fseek(f,spos,SEEK_SET);
810 ++cnt;
811 // for(i=0;i<len;i++) dp->buffer[i]=i/0x12;
812 // for(i=0;i<len;i++) dp->buffer[i]=i;
813 // for(i=0;i<len;i++) dp->buffer[i]=cnt;
814 // for(i=0;i<len;i++) dp->buffer[i]=cnt<<4;
815 for(i=0;i<len;i++) dp->buffer[i]=(i==cnt2) ? (cnt+16*(8+cnt)) : 0;
816 if(cnt==6){ cnt=0; ++cnt2; }
817 fwrite(dp->buffer, len, 1, f);
818 fclose(f);
819 if(cnt2>0x150) *((int*)NULL)=1; // sig11 :)
820 }
821 #endif
822 #if 0
823 if( ((sh_audio_t *)ds->sh)->format == 0x2000) {
824 // if DNET, swap bytes, as DNET is byte-swapped AC3:
825 char *ptr = dp->buffer;
826 int i;
827 for (i = 0; i < len; i += 2)
828 {
829 const char tmp = ptr[0];
830 ptr[0] = ptr[1];
831 ptr[1] = tmp;
832 ptr += 2;
833 }
834 }
835 #endif
836 if (priv->audio_need_keyframe == 1) {
837 priv->audio_need_keyframe = 0;
838 } else if(priv->a_pts != timestamp)
839 dp->pts = timestamp/1000.0;
840 priv->a_pts=timestamp;
841 dp->pos = demuxer->filepos;
842 dp->keyframe = flags & 0x2;
843 ds_add_packet(ds, dp);
844
845 } // codec_id check, codec default case
846 }
847 // we will not use audio index if we use -idx and have a video
848 if(((!demuxer->video->sh && index_mode == 2) || priv->is_multirate) && (unsigned)demuxer->audio->id < MAX_STREAMS) {
849 while (priv->current_apacket + 1 < priv->index_table_size[demuxer->audio->id] &&
850 timestamp > priv->index_table[demuxer->audio->id][priv->current_apacket].timestamp) {
851 priv->current_apacket += 1;
852 priv->stream_switch = 1;
853 }
854 if (priv->stream_switch)
855 priv->audio_curpos = stream_tell(demuxer->stream);
856 }
857
858 // If we're reordering audio packets and we need more data get it
859 if (audioreorder_getnextpk)
860 continue;
861
862 return 1;
863 }
864
865 if(demuxer->video->id==stream_id){
866 got_video:
867 ds=demuxer->video;
868 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "packet is video (id: %d)\n", stream_id);
869
870 // parse video chunk:
871 {
872 // we need a more complicated, 2nd level demuxing, as the video
873 // frames are stored fragmented in the video chunks :(
874 sh_video_t *sh_video = ds->sh;
875 demux_packet_t *dp;
876 unsigned vpkg_header, vpkg_length, vpkg_offset;
877 int vpkg_seqnum=-1;
878 int vpkg_subseq=0;
879
880 while(len>2){
881 dp_hdr_t* dp_hdr;
882 unsigned char* dp_data;
883 uint8_t* extra;
884
885 // printf("xxx len=%d \n",len);
886
887 // read packet header
888 // bit 7: 1=last block in block chain
889 // bit 6: 1=short header (only one block?)
890 vpkg_header=stream_read_char(demuxer->stream); --len;
891 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "hdr: %02X (len=%d) ",vpkg_header,len);
892
893 if (0x40==(vpkg_header&0xc0)) {
894 // seems to be a very short header
895 // 2 bytes, purpose of the second byte yet unknown
896 int bummer av_unused;
897 bummer=stream_read_char(demuxer->stream); --len;
898 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "%02X",bummer);
899 vpkg_offset=0;
900 vpkg_length=len;
901 } else {
902
903 if (0==(vpkg_header&0x40)) {
904 // sub-seqnum (bits 0-6: number of fragment. bit 7: ???)
905 vpkg_subseq=stream_read_char(demuxer->stream);
906 --len;
907 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "subseq: %02X ",vpkg_subseq);
908 vpkg_subseq&=0x7f;
909 }
910
911 // size of the complete packet
912 // bit 14 is always one (same applies to the offset)
913 vpkg_length=stream_read_word(demuxer->stream);
914 len-=2;
915 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "l: %02X %02X ",vpkg_length>>8,vpkg_length&0xff);
916 if (!(vpkg_length&0xC000)) {
917 vpkg_length<<=16;
918 vpkg_length|=(uint16_t)stream_read_word(demuxer->stream);
919 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "l+: %02X %02X ",(vpkg_length>>8)&0xff,vpkg_length&0xff);
920 len-=2;
921 } else
922 vpkg_length&=0x3fff;
923
924 // offset of the following data inside the complete packet
925 // Note: if (hdr&0xC0)==0x80 then offset is relative to the
926 // _end_ of the packet, so it's equal to fragment size!!!
927 vpkg_offset=stream_read_word(demuxer->stream);
928 len-=2;
929 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "o: %02X %02X ",vpkg_offset>>8,vpkg_offset&0xff);
930 if (!(vpkg_offset&0xC000)) {
931 vpkg_offset<<=16;
932 vpkg_offset|=(uint16_t)stream_read_word(demuxer->stream);
933 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "o+: %02X %02X ",(vpkg_offset>>8)&0xff,vpkg_offset&0xff);
934 len-=2;
935 } else
936 vpkg_offset&=0x3fff;
937
938 vpkg_seqnum=stream_read_char(demuxer->stream); --len;
939 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "seq: %02X ",vpkg_seqnum);
940 }
941 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "\n");
942 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "blklen=%d\n", len);
943 mp_msg(MSGT_DEMUX,MSGL_DBG2, "block: hdr=0x%0x, len=%d, offset=%d, seqnum=%d\n",
944 vpkg_header, vpkg_length, vpkg_offset, vpkg_seqnum);
945
946 if(ds->asf_packet){
947 dp=ds->asf_packet;
948 dp_hdr=(dp_hdr_t*)dp->buffer;
949 dp_data=dp->buffer+sizeof(dp_hdr_t);
950 extra=dp->buffer+dp_hdr->chunktab;
951 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "we have an incomplete packet (oldseq=%d new=%d)\n",ds->asf_seq,vpkg_seqnum);
952 // we have an incomplete packet:
953 if(ds->asf_seq!=vpkg_seqnum){
954 // this fragment is for new packet, close the old one
955 mp_msg(MSGT_DEMUX,MSGL_DBG2, "closing probably incomplete packet, len: %d \n",dp->len);
956 queue_video_packet(priv, ds, dp);
957 ds->asf_packet=NULL;
958 } else {
959 // append data to it!
960 ++dp_hdr->chunks;
961 mp_msg(MSGT_DEMUX,MSGL_DBG2,"[chunks=%d subseq=%d]\n",dp_hdr->chunks,vpkg_subseq);
962 if(dp_hdr->chunktab+8*(1+dp_hdr->chunks)>dp->len){
963 // increase buffer size, this should not happen!
964 mp_msg(MSGT_DEMUX,MSGL_WARN, "chunktab buffer too small!!!!!\n");
965 dp->len=dp_hdr->chunktab+8*(4+dp_hdr->chunks);
966 dp->buffer=realloc(dp->buffer,dp->len+MP_INPUT_BUFFER_PADDING_SIZE);
967 memset(dp->buffer + dp->len, 0, MP_INPUT_BUFFER_PADDING_SIZE);
968 // re-calc pointers:
969 dp_hdr=(dp_hdr_t*)dp->buffer;
970 dp_data=dp->buffer+sizeof(dp_hdr_t);
971 extra=dp->buffer+dp_hdr->chunktab;
972 }
973 AV_WL32(extra + 8*dp_hdr->chunks + 0, 1);
974 AV_WL32(extra + 8*dp_hdr->chunks + 4, dp_hdr->len);
975 if(0x80==(vpkg_header&0xc0)){
976 // last fragment!
977 if(dp_hdr->len!=vpkg_length-vpkg_offset)
978 mp_msg(MSGT_DEMUX,MSGL_V,"warning! assembled.len=%d frag.len=%d total.len=%d \n",dp->len,vpkg_offset,vpkg_length-vpkg_offset);
979 if (vpkg_offset > dp->len - sizeof(dp_hdr_t) - dp_hdr->len) vpkg_offset = dp->len - sizeof(dp_hdr_t) - dp_hdr->len;
980 stream_read(demuxer->stream, dp_data+dp_hdr->len, vpkg_offset);
981 if((dp_data[dp_hdr->len]&0x20) && (sh_video->format==0x30335652)) --dp_hdr->chunks; else
982 dp_hdr->len+=vpkg_offset;
983 len-=vpkg_offset;
984 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "fragment (%d bytes) appended, %d bytes left\n",vpkg_offset,len);
985 // we know that this is the last fragment -> we can close the packet!
986 queue_video_packet(priv, ds, dp);
987 ds->asf_packet=NULL;
988 // continue parsing
989 continue;
990 }
991 // non-last fragment:
992 if(dp_hdr->len!=vpkg_offset)
993 mp_msg(MSGT_DEMUX,MSGL_V,"warning! assembled.len=%d offset=%d frag.len=%d total.len=%d \n",dp->len,vpkg_offset,len,vpkg_length);
994 if (len > dp->len - sizeof(dp_hdr_t) - dp_hdr->len) len = dp->len - sizeof(dp_hdr_t) - dp_hdr->len;
995 stream_read(demuxer->stream, dp_data+dp_hdr->len, len);
996 if((dp_data[dp_hdr->len]&0x20) && (sh_video->format==0x30335652)) --dp_hdr->chunks; else
997 dp_hdr->len+=len;
998 len=0;
999 break; // no more fragments in this chunk!
1000 }
1001 }
1002 // create new packet!
1003 dp = new_demux_packet(sizeof(dp_hdr_t)+vpkg_length+8*(1+2*(vpkg_header&0x3F)));
1004 // the timestamp seems to be in milliseconds
1005 dp->pos = demuxer->filepos;
1006 dp->keyframe = flags & 0x2;
1007 ds->asf_seq = vpkg_seqnum;
1008 dp_hdr=(dp_hdr_t*)dp->buffer;
1009 dp_hdr->chunks=0;
1010 dp_hdr->timestamp=timestamp;
1011 dp_hdr->chunktab=sizeof(dp_hdr_t)+vpkg_length;
1012 dp_data=dp->buffer+sizeof(dp_hdr_t);
1013 extra=dp->buffer+dp_hdr->chunktab;
1014 AV_WL32(extra, 1); AV_WL32(extra + 4, 0); // offset of the first chunk
1015 if(0x00==(vpkg_header&0xc0)){
1016 // first fragment:
1017 if (len > dp->len - sizeof(dp_hdr_t)) len = dp->len - sizeof(dp_hdr_t);
1018 dp_hdr->len=len;
1019 stream_read(demuxer->stream, dp_data, len);
1020 ds->asf_packet=dp;
1021 len=0;
1022 break;
1023 }
1024 // whole packet (not fragmented):
1025 if (vpkg_length > len) {
1026 mp_msg(MSGT_DEMUX, MSGL_WARN,"\n******** WARNING: vpkg_length=%i > len=%i ********\n", vpkg_length, len);
1027 /*
1028 * To keep the video stream rolling, we need to break
1029 * here. We shouldn't touch len to make sure rest of the
1030 * broken packet is skipped.
1031 */
1032 break;
1033 }
1034 dp_hdr->len=vpkg_length; len-=vpkg_length;
1035 stream_read(demuxer->stream, dp_data, vpkg_length);
1036 queue_video_packet(priv, ds, dp);
1037
1038 } // while(len>0)
1039
1040 if(len){
1041 mp_msg(MSGT_DEMUX, MSGL_WARN,"\n******** !!!!!!!! BUG!! len=%d !!!!!!!!!!! ********\n",len);
1042 if(len>0) stream_skip(demuxer->stream, len);
1043 }
1044 }
1045 if ((unsigned)demuxer->video->id < MAX_STREAMS) {
1046 while (priv->current_vpacket + 1 < priv->index_table_size[demuxer->video->id] &&
1047 timestamp > priv->index_table[demuxer->video->id][priv->current_vpacket + 1].timestamp) {
1048 priv->current_vpacket += 1;
1049 priv->stream_switch = 1;
1050 }
1051 if (priv->stream_switch)
1052 priv->video_curpos = stream_tell(demuxer->stream);
1053 }
1054
1055 return 1;
1056 }
1057
1058 if((unsigned)stream_id<MAX_STREAMS){
1059
1060 if(demuxer->audio->id==-1 && demuxer->a_streams[stream_id]){
1061 sh_audio_t *sh = demuxer->a_streams[stream_id];
1062 demuxer->audio->id=stream_id;
1063 sh->ds=demuxer->audio;
1064 demuxer->audio->sh=sh;
1065 priv->audio_buf = calloc(priv->sub_packet_h[demuxer->audio->id], priv->audiopk_size[demuxer->audio->id]);
1066 priv->audio_timestamp = calloc(priv->sub_packet_h[demuxer->audio->id], sizeof(double));
1067 mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected RM audio ID = %d\n",stream_id);
1068 goto got_audio;
1069 }
1070
1071 if(demuxer->video->id==-1 && demuxer->v_streams[stream_id]){
1072 sh_video_t *sh = demuxer->v_streams[stream_id];
1073 demuxer->video->id=stream_id;
1074 sh->ds=demuxer->video;
1075 demuxer->video->sh=sh;
1076 mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected RM video ID = %d\n",stream_id);
1077 goto got_video;
1078 }
1079
1080 }
1081
1082 mp_msg(MSGT_DEMUX,MSGL_DBG2, "unknown stream id (%d)\n", stream_id);
1083 discard:
1084 stream_skip(demuxer->stream, len);
1085 }// goto loop;
1086 return 0;
1087 }
1088
1089 static demuxer_t* demux_open_real(demuxer_t* demuxer)
1090 {
1091 real_priv_t* priv = demuxer->priv;
1092 int num_of_headers;
1093 int a_streams=0;
1094 int v_streams=0;
1095 int i;
1096 int header_size;
1097
1098 header_size = stream_read_dword(demuxer->stream); /* header size */
1099 mp_msg(MSGT_DEMUX,MSGL_V, "real: Header size: %d\n", header_size);
1100 i = stream_read_word(demuxer->stream); /* version */
1101 mp_msg(MSGT_DEMUX,MSGL_V, "real: Header object version: %d\n", i);
1102 if (header_size == 0x10)
1103 i = stream_read_word(demuxer->stream);
1104 else /* we should test header_size here too. */
1105 i = stream_read_dword(demuxer->stream);
1106 mp_msg(MSGT_DEMUX,MSGL_V, "real: File version: %d\n", i);
1107 num_of_headers = stream_read_dword(demuxer->stream);
1108
1109 /* parse chunks */
1110 for (i = 1; i <= num_of_headers; i++)
1111 // for (i = 1; ; i++)
1112 {
1113 int chunk_id, chunk_pos, chunk_size;
1114
1115 chunk_pos = stream_tell(demuxer->stream);
1116 chunk_id = stream_read_dword_le(demuxer->stream);
1117 chunk_size = stream_read_dword(demuxer->stream);
1118
1119 stream_skip(demuxer->stream, 2); /* version */
1120
1121 mp_msg(MSGT_DEMUX,MSGL_V, "Chunk: %.4s (%x) (size: 0x%x, offset: 0x%x)\n",
1122 (char *)&chunk_id, chunk_id, chunk_size, chunk_pos);
1123
1124 if (chunk_id != MKTAG('D', 'A', 'T', 'A') && chunk_size < 10){
1125 mp_msg(MSGT_DEMUX,MSGL_ERR,"demux_real: invalid chunksize! (%d)\n",chunk_size);
1126 break; //return;
1127 }
1128
1129 switch(chunk_id)
1130 {
1131 case MKTAG('P', 'R', 'O', 'P'):
1132 /* Properties header */
1133
1134 stream_skip(demuxer->stream, 4); /* max bitrate */
1135 stream_skip(demuxer->stream, 4); /* avg bitrate */
1136 stream_skip(demuxer->stream, 4); /* max packet size */
1137 stream_skip(demuxer->stream, 4); /* avg packet size */
1138 stream_skip(demuxer->stream, 4); /* nb packets */
1139 priv->duration = stream_read_dword(demuxer->stream)/1000; /* duration */
1140 stream_skip(demuxer->stream, 4); /* preroll */
1141 priv->index_chunk_offset = stream_read_dword(demuxer->stream);
1142 mp_msg(MSGT_DEMUX,MSGL_V,"First index chunk offset: 0x%x\n", priv->index_chunk_offset);
1143 priv->data_chunk_offset = stream_read_dword(demuxer->stream)+10;
1144 mp_msg(MSGT_DEMUX,MSGL_V,"First data chunk offset: 0x%x\n", priv->data_chunk_offset);
1145 stream_skip(demuxer->stream, 2); /* nb streams */
1146 #if 0
1147 stream_skip(demuxer->stream, 2); /* flags */
1148 #else
1149 {
1150 int flags = stream_read_word(demuxer->stream);
1151
1152 if (flags)
1153 {
1154 mp_msg(MSGT_DEMUX,MSGL_V,"Flags (%x): ", flags);
1155 if (flags & 0x1)
1156 mp_msg(MSGT_DEMUX,MSGL_V,"[save allowed] ");
1157 if (flags & 0x2)
1158 mp_msg(MSGT_DEMUX,MSGL_V,"[perfect play (more buffers)] ");
1159 if (flags & 0x4)
1160 mp_msg(MSGT_DEMUX,MSGL_V,"[live broadcast] ");
1161 mp_msg(MSGT_DEMUX,MSGL_V,"\n");
1162 }
1163 }
1164 #endif
1165 break;
1166 case MKTAG('C', 'O', 'N', 'T'):
1167 {
1168 /* Content description header */
1169 char *buf;
1170 int len;
1171
1172 len = stream_read_word(demuxer->stream);
1173 if (len > 0)
1174 {
1175 buf = malloc(len+1);
1176 stream_read(demuxer->stream, buf, len);
1177 buf[len] = 0;
1178 demux_info_add(demuxer, "title", buf);
1179 free(buf);
1180 }
1181
1182 len = stream_read_word(demuxer->stream);
1183 if (len > 0)
1184 {
1185 buf = malloc(len+1);
1186 stream_read(demuxer->stream, buf, len);
1187 buf[len] = 0;
1188 demux_info_add(demuxer, "author", buf);
1189 free(buf);
1190 }
1191
1192 len = stream_read_word(demuxer->stream);
1193 if (len > 0)
1194 {
1195 buf = malloc(len+1);
1196 stream_read(demuxer->stream, buf, len);
1197 buf[len] = 0;
1198 demux_info_add(demuxer, "copyright", buf);
1199 free(buf);
1200 }
1201
1202 len = stream_read_word(demuxer->stream);
1203 if (len > 0)
1204 {
1205 buf = malloc(len+1);
1206 stream_read(demuxer->stream, buf, len);
1207 buf[len] = 0;
1208 demux_info_add(demuxer, "comment", buf);
1209 free(buf);
1210 }
1211 break;
1212 }
1213 case MKTAG('M', 'D', 'P', 'R'):
1214 {
1215 /* Media properties header */
1216 int stream_id;
1217 int bitrate;
1218 int codec_data_size;
1219 int codec_pos;
1220 int tmp;
1221 int len;
1222 char *descr, *mimet = NULL;
1223
1224 stream_id = stream_read_word(demuxer->stream);
1225 mp_msg(MSGT_DEMUX,MSGL_V,"Found new stream (id: %d)\n", stream_id);
1226
1227 stream_skip(demuxer->stream, 4); /* max bitrate */
1228 bitrate = stream_read_dword(demuxer->stream); /* avg bitrate */
1229 stream_skip(demuxer->stream, 4); /* max packet size */
1230 stream_skip(demuxer->stream, 4); /* avg packet size */
1231 stream_skip(demuxer->stream, 4); /* start time */
1232 stream_skip(demuxer->stream, 4); /* preroll */
1233 stream_skip(demuxer->stream, 4); /* duration */
1234
1235 if ((len = stream_read_char(demuxer->stream)) > 0) {
1236 descr = malloc(len+1);
1237 stream_read(demuxer->stream, descr, len);
1238 descr[len] = 0;
1239 mp_msg(MSGT_DEMUX, MSGL_INFO,"Stream description: %s\n", descr);
1240 free(descr);
1241 }
1242 if ((len = stream_read_char(demuxer->stream)) > 0) {
1243 mimet = malloc(len+1);
1244 stream_read(demuxer->stream, mimet, len);
1245 mimet[len] = 0;
1246 mp_msg(MSGT_DEMUX, MSGL_INFO,"Stream mimetype: %s\n", mimet);
1247 }
1248
1249 /* Type specific header */
1250 codec_data_size = stream_read_dword(demuxer->stream);
1251 codec_pos = stream_tell(demuxer->stream);
1252
1253 if (!strncmp(mimet,"audio/",6)) {
1254 if (strstr(mimet,"x-pn-realaudio") || strstr(mimet,"x-pn-multirate-realaudio")) {
1255 tmp = stream_read_dword(demuxer->stream);
1256 if (tmp != MKTAG(0xfd, 'a', 'r', '.'))
1257 {
1258 mp_msg(MSGT_DEMUX,MSGL_V,"Audio: can't find .ra in codec data\n");
1259 } else {
1260 /* audio header */
1261 sh_audio_t *sh = new_sh_audio(demuxer, stream_id);
1262 char buf[128]; /* for codec name */
1263 int frame_size;
1264 int sub_packet_size;
1265 int sub_packet_h;
1266 int version;
1267 int flavor av_unused;
1268 int coded_frame_size;
1269 int codecdata_length;
1270 int i;
1271 char *buft;
1272 int hdr_size;
1273 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "[%s] Audio stream found, -aid %d\n", "real", stream_id);
1274 mp_msg(MSGT_DEMUX,MSGL_V,"Found audio stream!\n");
1275 version = stream_read_word(demuxer->stream);
1276 mp_msg(MSGT_DEMUX,MSGL_V,"version: %d\n", version);
1277 if (version == 3) {
1278 stream_skip(demuxer->stream, 2);
1279 stream_skip(demuxer->stream, 10);
1280 stream_skip(demuxer->stream, 4);
1281 // Name, author, (c) are also in CONT tag
1282 if ((i = stream_read_char(demuxer->stream)) != 0) {
1283 buft = malloc(i+1);
1284 stream_read(demuxer->stream, buft, i);
1285 buft[i] = 0;
1286 demux_info_add(demuxer, "Name", buft);
1287 free(buft);
1288 }
1289 if ((i = stream_read_char(demuxer->stream)) != 0) {
1290 buft = malloc(i+1);
1291 stream_read(demuxer->stream, buft, i);
1292 buft[i] = 0;
1293 demux_info_add(demuxer, "Author", buft);
1294 free(buft);
1295 }
1296 if ((i = stream_read_char(demuxer->stream)) != 0) {
1297 buft = malloc(i+1);
1298 stream_read(demuxer->stream, buft, i);
1299 buft[i] = 0;
1300 demux_info_add(demuxer, "Copyright", buft);
1301 free(buft);
1302 }
1303 if ((i = stream_read_char(demuxer->stream)) != 0)
1304 mp_msg(MSGT_DEMUX,MSGL_WARN,"Last header byte is not zero!\n");
1305 stream_skip(demuxer->stream, 1);
1306 i = stream_read_char(demuxer->stream);
1307 sh->format = stream_read_dword_le(demuxer->stream);
1308 if (i != 4) {
1309 mp_msg(MSGT_DEMUX,MSGL_WARN,"Audio FourCC size is not 4 (%d), please report to "
1310 "MPlayer developers\n", i);
1311 stream_skip(demuxer->stream, i - 4);
1312 }
1313 if (sh->format != mmioFOURCC('l','p','c','J')) {
1314 mp_msg(MSGT_DEMUX,MSGL_WARN,"Version 3 audio with FourCC %8x, please report to "
1315 "MPlayer developers\n", sh->format);
1316 }
1317 sh->channels = 1;
1318 sh->samplesize = 16;
1319 sh->samplerate = 8000;
1320 frame_size = 240;
1321 sub_packet_h = 0;
1322 sub_packet_size = coded_frame_size = 0x14;
1323 strcpy(buf, "14_4");
1324 } else {
1325 stream_skip(demuxer->stream, 2); // 00 00
1326 stream_skip(demuxer->stream, 4); /* .ra4 or .ra5 */
1327 stream_skip(demuxer->stream, 4); // ???
1328 stream_skip(demuxer->stream, 2); /* version (4 or 5) */
1329 hdr_size = stream_read_dword(demuxer->stream); // header size
1330 mp_msg(MSGT_DEMUX,MSGL_V,"header size: %d\n", hdr_size);
1331 flavor = stream_read_word(demuxer->stream);/* codec flavor id */
1332 coded_frame_size = stream_read_dword(demuxer->stream);/* needed by codec */
1333 mp_msg(MSGT_DEMUX,MSGL_V,"coded_frame_size: %d\n", coded_frame_size);
1334 stream_skip(demuxer->stream, 4); // big number
1335 stream_skip(demuxer->stream, 4); // bigger number
1336 stream_skip(demuxer->stream, 4); // 2 || -''-
1337 sub_packet_h = stream_read_word(demuxer->stream);
1338 mp_msg(MSGT_DEMUX,MSGL_V,"sub_packet_h: %d\n", sub_packet_h);
1339 frame_size = stream_read_word(demuxer->stream);
1340 mp_msg(MSGT_DEMUX,MSGL_V,"frame_size: %d\n", frame_size);
1341 sub_packet_size = stream_read_word(demuxer->stream);
1342 mp_msg(MSGT_DEMUX,MSGL_V,"sub_packet_size: %d\n", sub_packet_size);
1343 stream_skip(demuxer->stream, 2); // 0
1344
1345 if (version == 5)
1346 stream_skip(demuxer->stream, 6); //0,srate,0
1347
1348 sh->samplerate = stream_read_word(demuxer->stream);
1349 stream_skip(demuxer->stream, 2); // 0
1350 sh->samplesize = stream_read_word(demuxer->stream)/8;
1351 sh->channels = stream_read_word(demuxer->stream);
1352 mp_msg(MSGT_DEMUX,MSGL_V,"samplerate: %d, channels: %d\n",
1353 sh->samplerate, sh->channels);
1354
1355 if (version == 5)
1356 {
1357 stream_read(demuxer->stream, buf, 4); // interleaver id
1358 priv->intl_id[stream_id] = MKTAG(buf[0], buf[1], buf[2], buf[3]);
1359 stream_read(demuxer->stream, buf, 4); // fourcc
1360 buf[4] = 0;
1361 }
1362 else
1363 {
1364 /* Interleaver id */
1365 get_str(1, demuxer, buf, sizeof(buf));
1366 priv->intl_id[stream_id] = MKTAG(buf[0], buf[1], buf[2], buf[3]);
1367 /* Codec FourCC */
1368 get_str(1, demuxer, buf, sizeof(buf));
1369 }
1370 }
1371
1372 /* Emulate WAVEFORMATEX struct: */
1373 sh->wf = calloc(1, sizeof(*sh->wf));
1374 sh->wf->nChannels = sh->channels;
1375 sh->wf->wBitsPerSample = sh->samplesize*8;
1376 sh->wf->nSamplesPerSec = sh->samplerate;
1377 sh->wf->nAvgBytesPerSec = bitrate/8;
1378 sh->wf->nBlockAlign = frame_size;
1379 sh->wf->cbSize = 0;
1380 sh->format = MKTAG(buf[0], buf[1], buf[2], buf[3]);
1381
1382 switch (sh->format)
1383 {
1384 case MKTAG('d', 'n', 'e', 't'):
1385 mp_msg(MSGT_DEMUX,MSGL_V,"Audio: DNET -> AC3\n");
1386 // sh->format = 0x2000;
1387 break;
1388 case MKTAG('1', '4', '_', '4'):
1389 sh->wf->nBlockAlign = coded_frame_size;
1390 break;
1391
1392 case MKTAG('2', '8', '_', '8'):
1393 sh->wf->nBlockAlign = coded_frame_size;
1394 break;
1395
1396 case MKTAG('s', 'i', 'p', 'r'):
1397 case MKTAG('a', 't', 'r', 'c'):
1398 case MKTAG('c', 'o', 'o', 'k'):
1399 // realaudio codec plugins - common:
1400 stream_skip(demuxer->stream,3); // Skip 3 unknown bytes
1401 if (version==5)
1402 stream_skip(demuxer->stream,1); // Skip 1 additional unknown byte
1403 codecdata_length=stream_read_dword(demuxer->stream);
1404 // Check extradata len, we can't store bigger values in cbSize anyway
1405 if ((unsigned)codecdata_length > 0xffff) {
1406 mp_msg(MSGT_DEMUX,MSGL_ERR,"Extradata too big (%d)\n", codecdata_length);
1407 goto skip_this_chunk;
1408 }
1409 sh->wf->cbSize = codecdata_length;
1410 sh->wf = realloc(sh->wf, sizeof(*sh->wf)+sh->wf->cbSize);
1411 stream_read(demuxer->stream, ((char*)(sh->wf+1)), codecdata_length); // extras
1412 if (priv->intl_id[stream_id] == MKTAG('g', 'e', 'n', 'r'))
1413 sh->wf->nBlockAlign = sub_packet_size;
1414 else
1415 sh->wf->nBlockAlign = coded_frame_size;
1416
1417 break;
1418
1419 case MKTAG('r', 'a', 'a', 'c'):
1420 case MKTAG('r', 'a', 'c', 'p'):
1421 /* This is just AAC. The two or five bytes of */
1422 /* config data needed for libfaad are stored */
1423 /* after the audio headers. */
1424 stream_skip(demuxer->stream,3); // Skip 3 unknown bytes
1425 if (version==5)
1426 stream_skip(demuxer->stream,1); // Skip 1 additional unknown byte
1427 codecdata_length=stream_read_dword(demuxer->stream);
1428 if (codecdata_length>=1) {
1429 sh->codecdata_len = codecdata_length - 1;
1430 sh->codecdata = calloc(sh->codecdata_len, 1);
1431 stream_skip(demuxer->stream, 1);
1432 stream_read(demuxer->stream, sh->codecdata, sh->codecdata_len);
1433 }
1434 sh->format = mmioFOURCC('M', 'P', '4', 'A');
1435 break;
1436 default:
1437 mp_msg(MSGT_DEMUX,MSGL_V,"Audio: Unknown (%s)\n", buf);
1438 }
1439
1440 // Interleaver setup
1441 priv->sub_packet_size[stream_id] = sub_packet_size;
1442 priv->sub_packet_h[stream_id] = sub_packet_h;
1443 priv->coded_framesize[stream_id] = coded_frame_size;
1444 priv->audiopk_size[stream_id] = frame_size;
1445
1446 sh->wf->wFormatTag = sh->format;
1447
1448 mp_msg(MSGT_DEMUX,MSGL_V,"audio fourcc: %.4s (%x)\n", (char *)&sh->format, sh->format);
1449 if ( mp_msg_test(MSGT_DEMUX,MSGL_V) )
1450 print_wave_header(sh->wf, MSGL_V);
1451
1452 /* Select audio stream with highest bitrate if multirate file*/
1453 if (priv->is_multirate && ((demuxer->audio->id == -1) ||
1454 ((demuxer->audio->id >= 0) && priv->a_bitrate && (bitrate > priv->a_bitrate)))) {
1455 demuxer->audio->id = stream_id;
1456 priv->a_bitrate = bitrate;
1457 mp_msg(MSGT_DEMUX,MSGL_DBG2,"Multirate autoselected audio id %d with bitrate %d\n", stream_id, bitrate);
1458 }
1459
1460 if(demuxer->audio->id==stream_id){
1461 sh->ds=demuxer->audio;
1462 demuxer->audio->sh=sh;
1463 priv->audio_buf = calloc(priv->sub_packet_h[demuxer->audio->id], priv->audiopk_size[demuxer->audio->id]);
1464 priv->audio_timestamp = calloc(priv->sub_packet_h[demuxer->audio->id], sizeof(double));
1465 }
1466
1467 ++a_streams;
1468
1469 #ifdef stream_skip
1470 #undef stream_skip
1471 #endif
1472 }
1473 } else if (strstr(mimet,"X-MP3-draft-00")) {
1474 sh_audio_t *sh = new_sh_audio(demuxer, stream_id);
1475 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "[%s] Audio stream found, -aid %d\n", "real", stream_id);
1476
1477 /* Emulate WAVEFORMATEX struct: */
1478 sh->wf = calloc(1, sizeof(*sh->wf));
1479 sh->wf->nChannels = 0;//sh->channels;
1480 sh->wf->wBitsPerSample = 16;
1481 sh->wf->nSamplesPerSec = 0;//sh->samplerate;
1482 sh->wf->nAvgBytesPerSec = 0;//bitrate;
1483 sh->wf->nBlockAlign = 0;//frame_size;
1484 sh->wf->cbSize = 0;
1485 sh->wf->wFormatTag = sh->format = mmioFOURCC('a','d','u',0x55);
1486
1487 if(demuxer->audio->id==stream_id){
1488 sh->ds=demuxer->audio;
1489 demuxer->audio->sh=sh;
1490 }
1491
1492 ++a_streams;
1493 } else if (strstr(mimet,"x-ralf-mpeg4")) {
1494 mp_msg(MSGT_DEMUX,MSGL_ERR,"Real lossless audio not supported yet\n");
1495 } else if (strstr(mimet,"x-pn-encrypted-ra")) {
1496 mp_msg(MSGT_DEMUX,MSGL_ERR,"Encrypted audio is not supported\n");
1497 } else {
1498 mp_msg(MSGT_DEMUX,MSGL_V,"Unknown audio stream format\n");
1499 }
1500 } else if (!strncmp(mimet,"video/",6)) {
1501 if (strstr(mimet,"x-pn-realvideo") || strstr(mimet,"x-pn-multirate-realvideo")) {
1502 stream_skip(demuxer->stream, 4); // VIDO length, same as codec_data_size
1503 tmp = stream_read_dword(demuxer->stream);
1504 if(tmp != MKTAG('O', 'D', 'I', 'V'))
1505 {
1506 mp_msg(MSGT_DEMUX,MSGL_V,"Video: can't find VIDO in codec data\n");
1507 } else {
1508 /* video header */
1509 sh_video_t *sh = new_sh_video(demuxer, stream_id);
1510 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "[%s] Video stream found, -vid %d\n", "real", stream_id);
1511
1512 sh->format = stream_read_dword_le(demuxer->stream); /* fourcc */
1513 mp_msg(MSGT_DEMUX,MSGL_V,"video fourcc: %.4s (%x)\n", (char *)&sh->format, sh->format);
1514
1515 /* emulate BITMAPINFOHEADER */
1516 sh->bih = calloc(1, sizeof(*sh->bih));
1517 sh->bih->biSize = sizeof(*sh->bih);
1518 sh->disp_w = sh->bih->biWidth = stream_read_word(demuxer->stream);
1519 sh->disp_h = sh->bih->biHeight = stream_read_word(demuxer->stream);
1520 sh->bih->biPlanes = 1;
1521 sh->bih->biBitCount = 24;
1522 sh->bih->biCompression = sh->format;
1523 sh->bih->biSizeImage= sh->bih->biWidth*sh->bih->biHeight*3;
1524
1525 sh->fps = (float) stream_read_word(demuxer->stream);
1526 if (sh->fps<=0) sh->fps=24; // we probably won't even care about fps
1527 sh->frametime = 1.0f/sh->fps;
1528
1529 #if 1
1530 stream_skip(demuxer->stream, 4);
1531 #else
1532 mp_msg(MSGT_DEMUX, MSGL_V,"unknown1: 0x%X \n",stream_read_dword(demuxer->stream));
1533 mp_msg(MSGT_DEMUX, MSGL_V,"unknown2: 0x%X \n",stream_read_word(demuxer->stream));
1534 mp_msg(MSGT_DEMUX, MSGL_V,"unknown3: 0x%X \n",stream_read_word(demuxer->stream));
1535 #endif
1536 // if(sh->format==0x30335652 || sh->format==0x30325652 )
1537 if(1)
1538 {
1539 int tmp=stream_read_word(demuxer->stream);
1540 if(tmp>0){
1541 sh->fps=tmp; sh->frametime = 1.0f/sh->fps;
1542 }
1543 } else {
1544 int fps=stream_read_word(demuxer->stream);
1545 mp_msg(MSGT_DEMUX, MSGL_WARN,"realvid: ignoring FPS = %d\n",fps);
1546 }
1547 stream_skip(demuxer->stream, 2);
1548
1549 {
1550 // read and store codec extradata
1551 unsigned int cnt = codec_data_size - (stream_tell(demuxer->stream) - codec_pos);
1552 if (cnt > 0x7fffffff - sizeof(*sh->bih)) {
1553 mp_msg(MSGT_DEMUX, MSGL_ERR,"Extradata too big (%u)\n", cnt);
1554 } else {
1555 sh->bih = realloc(sh->bih, sizeof(*sh->bih) + cnt);
1556 sh->bih->biSize += cnt;
1557 stream_read(demuxer->stream, ((unsigned char*)(sh->bih+1)), cnt);
1558 }
1559 }
1560 if(sh->format == 0x30315652 && ((unsigned char*)(sh->bih+1))[6] == 0x30)
1561 sh->bih->biCompression = sh->format = mmioFOURCC('R', 'V', '1', '3');
1562
1563 /* Select video stream with highest bitrate if multirate file*/
1564 if (priv->is_multirate && ((demuxer->video->id == -1) ||
1565 ((demuxer->video->id >= 0) && priv->v_bitrate && (bitrate > priv->v_bitrate)))) {
1566 demuxer->video->id = stream_id;
1567 priv->v_bitrate = bitrate;
1568 mp_msg(MSGT_DEMUX,MSGL_DBG2,"Multirate autoselected video id %d with bitrate %d\n", stream_id, bitrate);
1569 }
1570
1571 if(demuxer->video->id==stream_id){
1572 sh->ds=demuxer->video;
1573 demuxer->video->sh=sh;
1574 }
1575
1576 ++v_streams;
1577
1578 }
1579 } else {
1580 mp_msg(MSGT_DEMUX,MSGL_V,"Unknown video stream format\n");
1581 }
1582 } else if (strstr(mimet,"logical-")) {
1583 if (strstr(mimet,"fileinfo")) {
1584 mp_msg(MSGT_DEMUX,MSGL_V,"Got a logical-fileinfo chunk\n");
1585 } else if (strstr(mimet,"-audio") || strstr(mimet,"-video")) {
1586 int i, stream_cnt;
1587 int stream_list[MAX_STREAMS];
1588
1589 priv->is_multirate = 1;
1590 stream_skip(demuxer->stream, 4); // Length of codec data (repeated)
1591 stream_cnt = stream_read_dword(demuxer->stream); // Get number of audio or video streams
1592 if ((unsigned)stream_cnt >= MAX_STREAMS) {
1593 mp_msg(MSGT_DEMUX,MSGL_ERR,"Too many streams in %s. Big troubles ahead.\n", mimet);
1594 goto skip_this_chunk;
1595 }
1596 for (i = 0; i < stream_cnt; i++)
1597 stream_list[i] = stream_read_word(demuxer->stream);
1598 for (i = 0; i < stream_cnt; i++)
1599 if ((unsigned)stream_list[i] >= MAX_STREAMS) {
1600 mp_msg(MSGT_DEMUX,MSGL_ERR,"Stream id out of range: %d. Ignored.\n", stream_list[i]);
1601 stream_skip(demuxer->stream, 4); // Skip DATA offset for broken stream
1602 } else {
1603 priv->str_data_offset[stream_list[i]] = stream_read_dword(demuxer->stream);
1604 mp_msg(MSGT_DEMUX,MSGL_V,"Stream %d with DATA offset 0x%08x\n", stream_list[i], priv->str_data_offset[stream_list[i]]);
1605 }
1606 // Skip the rest of this chunk
1607 } else
1608 mp_msg(MSGT_DEMUX,MSGL_V,"Unknown logical stream\n");
1609 }
1610 else {
1611 mp_msg(MSGT_DEMUX, MSGL_ERR, "Not audio/video stream or unsupported!\n");
1612 }
1613 // break;
1614 // default:
1615 skip_this_chunk:
1616 /* skip codec info */
1617 tmp = stream_tell(demuxer->stream) - codec_pos;
1618 mp_msg(MSGT_DEMUX,MSGL_V,"### skipping %d bytes of codec info\n", codec_data_size - tmp);
1619 #if 0
1620 { int i;
1621 for(i=0;i<codec_data_size - tmp;i++)
1622 mp_msg(MSGT_DEMUX, MSGL_V," %02X",stream_read_char(demuxer->stream));
1623 mp_msg(MSGT_DEMUX, MSGL_V,"\n");
1624 }
1625 #else
1626 stream_skip(demuxer->stream, codec_data_size - tmp);
1627 #endif
1628 free (mimet);
1629 break;
1630 // }
1631 }
1632 case MKTAG('D', 'A', 'T', 'A'):
1633 goto header_end;
1634 case MKTAG('I', 'N', 'D', 'X'):
1635 default:
1636 mp_msg(MSGT_DEMUX,MSGL_V,"Unknown chunk: %x\n", chunk_id);
1637 stream_skip(demuxer->stream, chunk_size - 10);
1638 break;
1639 }
1640 }
1641
1642 header_end:
1643 if(priv->is_multirate) {
1644 mp_msg(MSGT_DEMUX,MSGL_V,"Selected video id %d audio id %d\n", demuxer->video->id, demuxer->audio->id);
1645 /* Perform some sanity checks to avoid checking streams id all over the code*/
1646 if (demuxer->audio->id >= MAX_STREAMS) {
1647 mp_msg(MSGT_DEMUX,MSGL_ERR,"Invalid audio stream %d. No sound will be played.\n", demuxer->audio->id);
1648 demuxer->audio->id = -2;
1649 } else if ((demuxer->audio->id >= 0) && (priv->str_data_offset[demuxer->audio->id] == 0)) {
1650 mp_msg(MSGT_DEMUX,MSGL_ERR,"Audio stream %d not found. No sound will be played.\n", demuxer->audio->id);
1651 demuxer->audio->id = -2;
1652 }
1653 if (demuxer->video->id >= MAX_STREAMS) {
1654 mp_msg(MSGT_DEMUX,MSGL_ERR,"Invalid video stream %d. No video will be played.\n", demuxer->video->id);
1655 demuxer->video->id = -2;
1656 } else if ((demuxer->video->id >= 0) && (priv->str_data_offset[demuxer->video->id] == 0)) {
1657 mp_msg(MSGT_DEMUX,MSGL_ERR,"Video stream %d not found. No video will be played.\n", demuxer->video->id);
1658 demuxer->video->id = -2;
1659 }
1660 }
1661
1662 if(priv->is_multirate && ((demuxer->video->id >= 0) || (demuxer->audio->id >=0))) {
1663 /* If audio or video only, seek to right place and behave like standard file */
1664 if (demuxer->video->id < 0) {
1665 // Stream is audio only, or -novideo
1666 stream_seek(demuxer->stream, priv->data_chunk_offset = priv->str_data_offset[demuxer->audio->id]+10);
1667 priv->is_multirate = 0;
1668 }
1669 if (demuxer->audio->id < 0) {
1670 // Stream is video only, or -nosound
1671 stream_seek(demuxer->stream, priv->data_chunk_offset = priv->str_data_offset[demuxer->video->id]+10);
1672 priv->is_multirate = 0;
1673 }
1674 }
1675
1676 if(!priv->is_multirate) {
1677 // printf("i=%d num_of_headers=%d \n",i,num_of_headers);
1678 priv->num_of_packets = stream_read_dword(demuxer->stream);
1679 stream_skip(demuxer->stream, 4); /* next data header */
1680
1681 mp_msg(MSGT_DEMUX,MSGL_V,"Packets in file: %d\n", priv->num_of_packets);
1682
1683 if (priv->num_of_packets == 0)
1684 priv->num_of_packets = -10;
1685 } else {
1686 priv->audio_curpos = priv->str_data_offset[demuxer->audio->id] + 18;
1687 stream_seek(demuxer->stream, priv->str_data_offset[demuxer->audio->id]+10);
1688 priv->a_num_of_packets = stream_read_dword(demuxer->stream);
1689 priv->video_curpos = priv->str_data_offset[demuxer->video->id] + 18;
1690 stream_seek(demuxer->stream, priv->str_data_offset[demuxer->video->id]+10);
1691 priv->v_num_of_packets = stream_read_dword(demuxer->stream);
1692 priv->stream_switch = 1;
1693 /* Index required for multirate playback, force building if it's not there */
1694 /* but respect user request to force index regeneration */
1695 if (index_mode == -1)
1696 index_mode = 1;
1697 }
1698
1699
1700 priv->audio_need_keyframe = 0;
1701 priv->video_after_seek = 0;
1702
1703 switch (index_mode){
1704 case -1: // untouched
1705 if ((demuxer->stream->flags & MP_STREAM_SEEK) == MP_STREAM_SEEK &&
1706 priv->index_chunk_offset && parse_index_chunk(demuxer))
1707 {
1708 demuxer->seekable = 1;
1709 }
1710 break;
1711 case 1: // use (generate index)
1712 if (priv->index_chunk_offset && parse_index_chunk(demuxer))
1713 {
1714 demuxer->seekable = 1;
1715 } else {
1716 generate_index(demuxer);
1717 demuxer->seekable = 1;
1718 }
1719 break;
1720 case 2: // force generating index
1721 generate_index(demuxer);
1722 demuxer->seekable = 1;
1723 break;
1724 default: // do nothing
1725 break;
1726 }
1727
1728 // detect streams:
1729 if(demuxer->video->id==-1 && v_streams>0){
1730 // find the valid video stream:
1731 if(!ds_fill_buffer(demuxer->video)){
1732 mp_msg(MSGT_DEMUXER, MSGL_INFO, "RM: %s",
1733 mp_gtext("No video stream found.\n"));
1734 }
1735 }
1736 if(demuxer->audio->id==-1 && a_streams>0){
1737 // find the valid audio stream:
1738 if(!ds_fill_buffer(demuxer->audio)){
1739 mp_msg(MSGT_DEMUXER, MSGL_INFO, "RM: %s",
1740 mp_gtext("No audio stream found -> no sound.\n"));
1741 }
1742 }
1743
1744 if(demuxer->video->sh){
1745 sh_video_t *sh=demuxer->video->sh;
1746 mp_msg(MSGT_DEMUX,MSGL_V,"VIDEO: %.4s [%08X,%08X] %dx%d (aspect %4.2f) %4.2f fps\n",
1747 (char *)&sh->format,((unsigned int*)(sh->bih+1))[1],((unsigned int*)(sh->bih+1))[0],
1748 sh->disp_w,sh->disp_h,sh->aspect,sh->fps);
1749 }
1750
1751 if(demuxer->audio->sh){
1752 sh_audio_t *sh=demuxer->audio->sh;
1753 mp_msg(MSGT_DEMUX,MSGL_V,"AUDIO: %.4s [%08X]\n",
1754 (char *)&sh->format,sh->format);
1755 }
1756
1757 return demuxer;
1758 }
1759
1760 static void demux_close_real(demuxer_t *demuxer)
1761 {
1762 int i;
1763 real_priv_t* priv = demuxer->priv;
1764
1765 if (priv){
1766 for(i=0; i<MAX_STREAMS; i++)
1767 free(priv->index_table[i]);
1768 free(priv->audio_buf);
1769 free(priv->audio_timestamp);
1770 free(priv);
1771 }
1772
1773 return;
1774 }
1775
1776 /* please upload RV10 samples WITH INDEX CHUNK */
1777 static void demux_seek_real(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
1778 {
1779 real_priv_t *priv = demuxer->priv;
1780 demux_stream_t *d_audio = demuxer->audio;
1781 demux_stream_t *d_video = demuxer->video;
1782 sh_audio_t *sh_audio = d_audio->sh;
1783 sh_video_t *sh_video = d_video->sh;
1784 int vid = d_video->id, aid = d_audio->id;
1785 int next_offset = 0;
1786 int64_t cur_timestamp = 0;
1787 int streams = 0;
1788 int retried = 0;
1789
1790
1791 if (sh_video && (unsigned)vid < MAX_STREAMS && priv->index_table_size[vid])
1792 streams |= 1;
1793 if (sh_audio && (unsigned)aid < MAX_STREAMS && priv->index_table_size[aid])
1794 streams |= 2;
1795
1796 // printf("streams: %d\n", streams);
1797
1798 if (!streams)
1799 return;
1800
1801 if (flags & SEEK_ABSOLUTE)
1802 priv->current_apacket = priv->current_vpacket = 0;
1803 if (flags & SEEK_FACTOR)
1804 rel_seek_secs *= priv->duration;
1805
1806 if ((streams & 1) && priv->current_vpacket >= priv->index_table_size[vid])
1807 priv->current_vpacket = priv->index_table_size[vid] - 1;
1808 if ((streams & 2) && priv->current_apacket >= priv->index_table_size[aid])
1809 priv->current_apacket = priv->index_table_size[aid] - 1;
1810
1811 // if (index_mode == 1 || index_mode == 2) {
1812 if (streams & 1) {// use the video index if we have one
1813 cur_timestamp = priv->index_table[vid][priv->current_vpacket].timestamp;
1814 if (rel_seek_secs > 0)
1815 while ((priv->index_table[vid][priv->current_vpacket].timestamp - cur_timestamp) < rel_seek_secs * 1000){
1816 priv->current_vpacket += 1;
1817 if (priv->current_vpacket >= priv->index_table_size[vid]) {
1818 priv->current_vpacket = priv->index_table_size[vid] - 1;
1819 if (!retried) {
1820 stream_seek(demuxer->stream, priv->index_table[vid][priv->current_vpacket].offset);
1821 add_index_segment(demuxer, vid, cur_timestamp + rel_seek_secs * 1000);
1822 retried = 1;
1823 }
1824 else
1825 break;
1826 }
1827 }
1828 else if (rel_seek_secs < 0) {
1829 while ((cur_timestamp - priv->index_table[vid][priv->current_vpacket].timestamp) < - rel_seek_secs * 1000){
1830 priv->current_vpacket -= 1;
1831 if (priv->current_vpacket < 0) {
1832 priv->current_vpacket = 0;
1833 break;
1834 }
1835 }
1836 }
1837 priv->video_curpos = priv->index_table[vid][priv->current_vpacket].offset;
1838 priv->audio_need_keyframe = !priv->is_multirate;
1839 priv->video_after_seek = 1;
1840 }
1841 if (streams & 2) {
1842 if (!(streams & 1)) {
1843 cur_timestamp =
1844 priv->index_table[aid][priv->current_apacket].timestamp;
1845 }
1846 if (rel_seek_secs > 0)
1847 while ((priv->index_table[aid][priv->current_apacket].timestamp - cur_timestamp) < rel_seek_secs * 1000){
1848 priv->current_apacket += 1;
1849 if (priv->current_apacket >= priv->index_table_size[aid]) {
1850 priv->current_apacket = priv->index_table_size[aid] - 1;
1851 break;
1852 }
1853 }
1854 else if (rel_seek_secs < 0)
1855 while ((cur_timestamp - priv->index_table[aid][priv->current_apacket].timestamp) < - rel_seek_secs * 1000){
1856 priv->current_apacket -= 1;
1857 if (priv->current_apacket < 0) {
1858 priv->current_apacket = 0;
1859 break;
1860 }
1861 }
1862 priv->audio_curpos = priv->index_table[aid][priv->current_apacket].offset;
1863 }
1864 // }
1865 next_offset = streams & 1 ? priv->video_curpos : priv->audio_curpos;
1866 // printf("seek: pos: %d, current packets: a: %d, v: %d\n",
1867 // next_offset, priv->current_apacket, priv->current_vpacket);
1868 if (next_offset)
1869 stream_seek(demuxer->stream, next_offset);
1870
1871 demux_real_fill_buffer(demuxer, NULL);
1872 }
1873
1874 static int demux_real_control(demuxer_t *demuxer, int cmd, void *arg)
1875 {
1876 real_priv_t *priv = demuxer->priv;
1877 unsigned int lastpts = priv->v_pts ? priv->v_pts : priv->a_pts;
1878
1879 switch (cmd) {
1880 case DEMUXER_CTRL_GET_TIME_LENGTH:
1881 if (priv->duration == 0)
1882 return DEMUXER_CTRL_DONTKNOW;
1883
1884 *((double *)arg) = (double)priv->duration;
1885 return DEMUXER_CTRL_OK;
1886
1887 case DEMUXER_CTRL_GET_PERCENT_POS:
1888 if (priv->duration == 0)
1889 return DEMUXER_CTRL_DONTKNOW;
1890
1891 *((int *)arg) = (int)(100 * lastpts / priv->duration);
1892 return DEMUXER_CTRL_OK;
1893
1894 default:
1895 return DEMUXER_CTRL_NOTIMPL;
1896 }
1897 }
1898
1899
1900 const demuxer_desc_t demuxer_desc_real = {
1901 "Realmedia demuxer",
1902 "real",
1903 "REAL",
1904 "Alex Beregszasi, Florian Schneider, A'rpi, Roberto Togni",
1905 "handles new .RMF files",
1906 DEMUXER_TYPE_REAL,
1907 1, // safe autodetect
1908 real_check_file,
1909 demux_real_fill_buffer,
1910 demux_open_real,
1911 demux_close_real,
1912 demux_seek_real,
1913 demux_real_control
1914 };
MPlayer development branch