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codecs.conf: add missing YV12 output formats for FFmpeg codecs
[mplayer/glamo.git] / libmpdemux / demux_real.c
blob644b927e1fcb68c051ffa3901fdbcaabf73db7fe
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 "config.h"
43 #include "mp_msg.h"
44 #include "mpbswap.h"
45 #include "libavutil/common.h"
46 #include "stream/stream.h"
47 #include "aviprint.h"
48 #include "demuxer.h"
49 #include "stheader.h"
50 #include "demux_real.h"
51
52 //#define mp_dbg(mod,lev, args... ) mp_msg_c((mod<<8)|lev, ## args )
53
54 #define MAX_STREAMS 32
55
56 static unsigned char sipr_swaps[38][2]={
57 {0,63},{1,22},{2,44},{3,90},{5,81},{7,31},{8,86},{9,58},{10,36},{12,68},
58 {13,39},{14,73},{15,53},{16,69},{17,57},{19,88},{20,34},{21,71},{24,46},
59 {25,94},{26,54},{28,75},{29,50},{32,70},{33,92},{35,74},{38,85},{40,56},
60 {42,87},{43,65},{45,59},{48,79},{49,93},{51,89},{55,95},{61,76},{67,83},
61 {77,80} };
62
63 typedef struct {
64 unsigned int timestamp;
65 int offset;
66 // int packetno;
67 // int len; /* only filled by our index generator */
68 // int flags; /* only filled by our index generator */
69 } real_index_table_t;
70
71 typedef struct {
72 /* for seeking */
73 int index_chunk_offset;
74 real_index_table_t *index_table[MAX_STREAMS];
75
76 // int *index_table[MAX_STREAMS];
77 int index_table_size[MAX_STREAMS];
78 int index_malloc_size[MAX_STREAMS];
79 int data_chunk_offset;
80 int num_of_packets;
81 int current_packet;
82
83 // need for seek
84 int audio_need_keyframe;
85 int video_after_seek;
86
87 int current_apacket;
88 int current_vpacket;
89
90 // timestamp correction:
91 int64_t kf_base;// timestamp of the prev. video keyframe
92 unsigned int kf_pts; // timestamp of next video keyframe
93 unsigned int a_pts; // previous audio timestamp
94 double v_pts; // previous video timestamp
95 unsigned long duration;
96
97 /* stream id table */
98 // int last_a_stream;
99 // int a_streams[MAX_STREAMS];
100 // int last_v_stream;
101 // int v_streams[MAX_STREAMS];
102
103 /**
104 * Used to demux multirate files
105 */
106 int is_multirate; ///< != 0 for multirate files
107 int str_data_offset[MAX_STREAMS]; ///< Data chunk offset for every audio/video stream
108 int audio_curpos; ///< Current file position for audio demuxing
109 int video_curpos; ///< Current file position for video demuxing
110 int a_num_of_packets; ///< Number of audio packets
111 int v_num_of_packets; ///< Number of video packets
112 int a_bitrate; ///< Audio bitrate
113 int v_bitrate; ///< Video bitrate
114 int stream_switch; ///< Flag used to switch audio/video demuxing
115
116 /**
117 * Used to reorder audio data
118 */
119 unsigned int intl_id[MAX_STREAMS]; ///< interleaver id, per stream
120 int sub_packet_size[MAX_STREAMS]; ///< sub packet size, per stream
121 int sub_packet_h[MAX_STREAMS]; ///< number of coded frames per block
122 int coded_framesize[MAX_STREAMS]; ///< coded frame size, per stream
123 int audiopk_size[MAX_STREAMS]; ///< audio packet size
124 unsigned char *audio_buf; ///< place to store reordered audio data
125 double *audio_timestamp; ///< timestamp for each audio packet
126 int sub_packet_cnt; ///< number of subpacket already received
127 int audio_filepos; ///< file position of first audio packet in block
128 } real_priv_t;
129
130 //! use at most 200 MB of memory for index, corresponds to around 25 million entries
131 #define MAX_INDEX_ENTRIES (200*1024*1024 / sizeof(real_index_table_t))
132
133 /* originally from FFmpeg */
134 static void get_str(int isbyte, demuxer_t *demuxer, char *buf, int buf_size)
135 {
136 int len;
137
138 if (isbyte)
139 len = stream_read_char(demuxer->stream);
140 else
141 len = stream_read_word(demuxer->stream);
142
143 stream_read(demuxer->stream, buf, (len > buf_size) ? buf_size : len);
144 if (len > buf_size)
145 stream_skip(demuxer->stream, len-buf_size);
146
147 mp_msg(MSGT_DEMUX, MSGL_V, "read_str: %d bytes read\n", len);
148 }
149
150 static void dump_index(demuxer_t *demuxer, int stream_id)
151 {
152 real_priv_t *priv = demuxer->priv;
153 real_index_table_t *index;
154 int i, entries;
155
156 if (!mp_msg_test(MSGT_DEMUX,MSGL_V))
157 return;
158
159 if ((unsigned)stream_id >= MAX_STREAMS)
160 return;
161
162 index = priv->index_table[stream_id];
163 entries = priv->index_table_size[stream_id];
164
165 mp_msg(MSGT_DEMUX, MSGL_V, "Index table for stream %d\n", stream_id);
166 for (i = 0; i < entries; i++)
167 {
168 #if 1
169 mp_msg(MSGT_DEMUX, MSGL_V,"i: %d, pos: %d, timestamp: %u\n", i, index[i].offset, index[i].timestamp);
170 #else
171 mp_msg(MSGT_DEMUX, MSGL_V,"packetno: %x pos: %x len: %x timestamp: %x flags: %x\n",
172 index[i].packetno, index[i].offset, index[i].len, index[i].timestamp,
173 index[i].flags);
174 #endif
175 }
176 }
177
178 static int parse_index_chunk(demuxer_t *demuxer)
179 {
180 real_priv_t *priv = demuxer->priv;
181 int origpos = stream_tell(demuxer->stream);
182 int next_header_pos = priv->index_chunk_offset;
183 int i, entries, stream_id;
184
185 read_index:
186 stream_seek(demuxer->stream, next_header_pos);
187
188 i = stream_read_dword_le(demuxer->stream);
189 if ((i == -256) || (i != MKTAG('I', 'N', 'D', 'X')))
190 {
191 mp_msg(MSGT_DEMUX, MSGL_WARN,"Something went wrong, no index chunk found on given address (%d)\n",
192 next_header_pos);
193 index_mode = -1;
194 if (i == -256)
195 stream_reset(demuxer->stream);
196 stream_seek(demuxer->stream, origpos);
197 return 0;
198 //goto end;
199 }
200
201 mp_msg(MSGT_DEMUX, MSGL_V,"Reading index table from index chunk (%d)\n",
202 next_header_pos);
203
204 i = stream_read_dword(demuxer->stream);
205 mp_msg(MSGT_DEMUX, MSGL_V,"size: %d bytes\n", i);
206
207 i = stream_read_word(demuxer->stream);
208 if (i != 0)
209 mp_msg(MSGT_DEMUX, MSGL_WARN,"Hmm, index table with unknown version (%d), please report it to MPlayer developers!\n", i);
210
211 entries = stream_read_dword(demuxer->stream);
212 mp_msg(MSGT_DEMUX, MSGL_V,"entries: %d\n", entries);
213
214 stream_id = stream_read_word(demuxer->stream);
215 mp_msg(MSGT_DEMUX, MSGL_V,"stream_id: %d\n", stream_id);
216
217 next_header_pos = stream_read_dword(demuxer->stream);
218 mp_msg(MSGT_DEMUX, MSGL_V,"next_header_pos: %d\n", next_header_pos);
219 if (entries <= 0 || entries > MAX_INDEX_ENTRIES)
220 {
221 if (next_header_pos)
222 goto read_index;
223 i = entries;
224 goto end;
225 }
226
227 priv->index_table_size[stream_id] = entries;
228 priv->index_table[stream_id] = calloc(priv->index_table_size[stream_id], sizeof(real_index_table_t));
229
230 for (i = 0; i < entries; i++)
231 {
232 stream_skip(demuxer->stream, 2); /* version */
233 priv->index_table[stream_id][i].timestamp = stream_read_dword(demuxer->stream);
234 priv->index_table[stream_id][i].offset = stream_read_dword(demuxer->stream);
235 stream_skip(demuxer->stream, 4); /* packetno */
236 // priv->index_table[stream_id][i].packetno = stream_read_dword(demuxer->stream);
237 // printf("Index table: Stream#%d: entry: %d: pos: %d\n",
238 // stream_id, i, priv->index_table[stream_id][i].offset);
239 }
240
241 dump_index(demuxer, stream_id);
242
243 if (next_header_pos > 0)
244 goto read_index;
245
246 end:
247 if (i == -256)
248 stream_reset(demuxer->stream);
249 stream_seek(demuxer->stream, origpos);
250 if (i == -256)
251 return 0;
252 else
253 return 1;
254 }
255
256 #if 1
257
258 static void add_index_item(demuxer_t *demuxer, int stream_id, unsigned int timestamp, int offset)
259 {
260 if ((unsigned)stream_id < MAX_STREAMS)
261 {
262 real_priv_t *priv = demuxer->priv;
263 real_index_table_t *index;
264 if (priv->index_table_size[stream_id] >= MAX_INDEX_ENTRIES) {
265 mp_msg(MSGT_DEMUXER, MSGL_WARN, "Index too large during building\n");
266 return;
267 }
268 if (priv->index_table_size[stream_id] >= priv->index_malloc_size[stream_id])
269 {
270 if (priv->index_malloc_size[stream_id] == 0)
271 priv->index_malloc_size[stream_id] = 2048;
272 else
273 priv->index_malloc_size[stream_id] += priv->index_malloc_size[stream_id] / 2;
274 // in case we have a really large chunk...
275 if (priv->index_table_size[stream_id] >=
276 priv->index_malloc_size[stream_id])
277 priv->index_malloc_size[stream_id] =
278 priv->index_table_size[stream_id] + 1;
279 priv->index_table[stream_id] = realloc(priv->index_table[stream_id], priv->index_malloc_size[stream_id]*sizeof(priv->index_table[0][0]));
280 }
281 if (priv->index_table_size[stream_id] > 0)
282 {
283 index = &priv->index_table[stream_id][priv->index_table_size[stream_id] - 1];
284 if (index->timestamp >= timestamp || index->offset >= offset)
285 return;
286 }
287 index = &priv->index_table[stream_id][priv->index_table_size[stream_id]++];
288 index->timestamp = timestamp;
289 index->offset = offset;
290 }
291 }
292
293 static void add_index_segment(demuxer_t *demuxer, int seek_stream_id, int64_t seek_timestamp)
294 {
295 int tag, len, stream_id, flags;
296 unsigned int timestamp;
297 if (seek_timestamp != -1 && (unsigned)seek_stream_id >= MAX_STREAMS)
298 return;
299 while (1)
300 {
301 demuxer->filepos = stream_tell(demuxer->stream);
302
303 tag = stream_read_dword(demuxer->stream);
304 if (tag == MKTAG('A', 'T', 'A', 'D'))
305 {
306 stream_skip(demuxer->stream, 14);
307 continue; /* skip to next loop */
308 }
309 len = tag & 0xffff;
310 if (tag == -256 || len < 12)
311 break;
312
313 stream_id = stream_read_word(demuxer->stream);
314 timestamp = stream_read_dword(demuxer->stream);
315
316 stream_skip(demuxer->stream, 1); /* reserved */
317 flags = stream_read_char(demuxer->stream);
318
319 if (flags == -256)
320 break;
321
322 if (flags & 2)
323 {
324 add_index_item(demuxer, stream_id, timestamp, demuxer->filepos);
325 if (stream_id == seek_stream_id && timestamp >= seek_timestamp)
326 {
327 stream_seek(demuxer->stream, demuxer->filepos);
328 return;
329 }
330 }
331 // 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);
332 /* skip data */
333 stream_skip(demuxer->stream, len-12);
334 }
335 }
336
337 static int generate_index(demuxer_t *demuxer)
338 {
339 real_priv_t *priv = demuxer->priv;
340 int origpos = stream_tell(demuxer->stream);
341 int data_pos = priv->data_chunk_offset-10;
342 int i;
343 int tag;
344
345 stream_seek(demuxer->stream, data_pos);
346 tag = stream_read_dword(demuxer->stream);
347 if (tag != MKTAG('A', 'T', 'A', 'D'))
348 {
349 mp_msg(MSGT_DEMUX, MSGL_WARN,"Something went wrong, no data chunk found on given address (%d)\n", data_pos);
350 }
351 else
352 {
353 stream_skip(demuxer->stream, 14);
354 add_index_segment(demuxer, -1, -1);
355 }
356 for (i = 0; i < MAX_STREAMS; i++)
357 {
358 if (priv->index_table_size[i] > 0)
359 {
360 dump_index(demuxer, i);
361 }
362 }
363 stream_reset(demuxer->stream);
364 stream_seek(demuxer->stream, origpos);
365 return 0;
366 }
367
368 #else
369
370 static int generate_index(demuxer_t *demuxer)
371 {
372 real_priv_t *priv = demuxer->priv;
373 int origpos = stream_tell(demuxer->stream);
374 int data_pos = priv->data_chunk_offset-10;
375 int num_of_packets = 0;
376 int i, entries = 0;
377 int len, stream_id = 0, flags;
378 unsigned int timestamp;
379 int tab_pos = 0;
380
381 read_index:
382 stream_seek(demuxer->stream, data_pos);
383
384 i = stream_read_dword_le(demuxer->stream);
385 if ((i == -256) || (i != MKTAG('D', 'A', 'T', 'A')))
386 {
387 mp_msg(MSGT_DEMUX, MSGL_WARN,"Something went wrong, no data chunk found on given address (%d)\n",
388 data_pos);
389 goto end;
390 }
391 stream_skip(demuxer->stream, 4); /* chunk size */
392 stream_skip(demuxer->stream, 2); /* version */
393
394 num_of_packets = stream_read_dword(demuxer->stream);
395 mp_msg(MSGT_DEMUX, MSGL_V,"Generating index table from raw data (pos: 0x%x) for %d packets\n",
396 data_pos, num_of_packets);
397
398 data_pos = stream_read_dword_le(demuxer->stream)-10; /* next data chunk */
399
400 for (i = 0; i < MAX_STREAMS; i++)
401 {
402 priv->index_table_size[i] = num_of_packets;
403 priv->index_table[i] = calloc(priv->index_table_size[i], sizeof(real_index_table_t));
404 // priv->index_table[stream_id] = realloc(priv->index_table[stream_id],
405 // priv->index_table_size[stream_id] * sizeof(real_index_table_t));
406 }
407
408 tab_pos = 0;
409
410 // memset(priv->index_table_size, 0, sizeof(int)*MAX_STREAMS);
411 // memset(priv->index_table, 0, sizeof(real_index_table_t)*MAX_STREAMS);
412
413 while (tab_pos < num_of_packets)
414 {
415 i = stream_read_char(demuxer->stream);
416 if (i == -256)
417 goto end;
418 stream_skip(demuxer->stream, 1);
419 // stream_skip(demuxer->stream, 2); /* version */
420
421 len = stream_read_word(demuxer->stream);
422 stream_id = stream_read_word(demuxer->stream);
423 timestamp = stream_read_dword(demuxer->stream);
424
425 stream_skip(demuxer->stream, 1); /* reserved */
426 flags = stream_read_char(demuxer->stream);
427
428 i = tab_pos;
429
430 // priv->index_table_size[stream_id] = i;
431 // if (priv->index_table[stream_id] == NULL)
432 // priv->index_table[stream_id] = malloc(priv->index_table_size[stream_id] * sizeof(real_index_table_t));
433 // else
434 // priv->index_table[stream_id] = realloc(priv->index_table[stream_id],
435 // priv->index_table_size[stream_id] * sizeof(real_index_table_t));
436
437 priv->index_table[stream_id][i].timestamp = timestamp;
438 priv->index_table[stream_id][i].offset = stream_tell(demuxer->stream)-12;
439 priv->index_table[stream_id][i].len = len;
440 priv->index_table[stream_id][i].packetno = entries;
441 priv->index_table[stream_id][i].flags = flags;
442
443 tab_pos++;
444
445 /* skip data */
446 stream_skip(demuxer->stream, len-12);
447 }
448 dump_index(demuxer, stream_id);
449 if (data_pos)
450 goto read_index;
451
452 end:
453 if (i == -256)
454 stream_reset(demuxer->stream);
455 stream_seek(demuxer->stream, origpos);
456 if (i == -256)
457 return 0;
458 else
459 return 1;
460 }
461 #endif
462
463
464 static int real_check_file(demuxer_t* demuxer)
465 {
466 real_priv_t *priv;
467 int c;
468
469 mp_msg(MSGT_DEMUX,MSGL_V,"Checking for REAL\n");
470
471 c = stream_read_dword_le(demuxer->stream);
472 if (c == -256)
473 return 0; /* EOF */
474 if (c != MKTAG('.', 'R', 'M', 'F'))
475 return 0; /* bad magic */
476
477 priv = calloc(1, sizeof(real_priv_t));
478 demuxer->priv = priv;
479
480 return DEMUXER_TYPE_REAL;
481 }
482
483 #define SKIP_BITS(n) buffer<<=n
484 #define SHOW_BITS(n) ((buffer)>>(32-(n)))
485
486 double real_fix_timestamp(unsigned char *buf, unsigned int timestamp, unsigned int format, int64_t *kf_base, int *kf_pts, double *pts){
487 double v_pts;
488 unsigned char *s = buf + 1 + (*buf+1)*8;
489 uint32_t buffer= (s[0]<<24) + (s[1]<<16) + (s[2]<<8) + s[3];
490 unsigned int kf=timestamp;
491 int pict_type;
492 unsigned int orig_kf;
493
494 if(format==mmioFOURCC('R','V','3','0') || format==mmioFOURCC('R','V','4','0')){
495 if(format==mmioFOURCC('R','V','3','0')){
496 SKIP_BITS(3);
497 pict_type= SHOW_BITS(2);
498 SKIP_BITS(2 + 7);
499 }else{
500 SKIP_BITS(1);
501 pict_type= SHOW_BITS(2);
502 SKIP_BITS(2 + 7 + 3);
503 }
504 orig_kf=
505 kf= SHOW_BITS(13); // kf= 2*SHOW_BITS(12);
506 // if(pict_type==0)
507 if(pict_type<=1){
508 // I frame, sync timestamps:
509 *kf_base=(int64_t)timestamp-kf;
510 mp_msg(MSGT_DEMUX, MSGL_DBG2,"\nTS: base=%08"PRIX64"\n",*kf_base);
511 kf=timestamp;
512 } else {
513 // P/B frame, merge timestamps:
514 int64_t tmp=(int64_t)timestamp-*kf_base;
515 kf|=tmp&(~0x1fff); // combine with packet timestamp
516 if(kf<tmp-4096) kf+=8192; else // workaround wrap-around problems
517 if(kf>tmp+4096) kf-=8192;
518 kf+=*kf_base;
519 }
520 if(pict_type != 3){ // P || I frame -> swap timestamps
521 unsigned int tmp=kf;
522 kf=*kf_pts;
523 *kf_pts=tmp;
524 // if(kf<=tmp) kf=0;
525 }
526 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);
527 }
528 v_pts=kf*0.001f;
529 // if(pts && (v_pts<*pts || !kf)) v_pts=*pts+frametime;
530 if(pts) *pts=v_pts;
531 return v_pts;
532 }
533
534 typedef struct dp_hdr_s {
535 uint32_t chunks; // number of chunks
536 uint32_t timestamp; // timestamp from packet header
537 uint32_t len; // length of actual data
538 uint32_t chunktab; // offset to chunk offset array
539 } dp_hdr_t;
540
541 static void queue_video_packet(real_priv_t *priv, demux_stream_t *ds, demux_packet_t *dp)
542 {
543 dp_hdr_t hdr = *(dp_hdr_t*)dp->buffer;
544 unsigned char *tmp = malloc(8*(1+hdr.chunks));
545 memcpy(tmp, dp->buffer+hdr.chunktab, 8*(1+hdr.chunks));
546 memmove(dp->buffer+1+8*(1+hdr.chunks), dp->buffer+sizeof(dp_hdr_t), hdr.len);
547 memcpy(dp->buffer+1, tmp, 8*(1+hdr.chunks));
548 *dp->buffer = (uint8_t)hdr.chunks;
549 free(tmp);
550
551 if(priv->video_after_seek){
552 priv->kf_base = 0;
553 priv->kf_pts = hdr.timestamp;
554 priv->video_after_seek = 0;
555 }
556 if(hdr.len >= 3) /* this check may be useless */
557 dp->pts = real_fix_timestamp(dp->buffer, hdr.timestamp,
558 ((sh_video_t *)ds->sh)->format,
559 &priv->kf_base, &priv->kf_pts,
560 &priv->v_pts);
561 ds_add_packet(ds, dp);
562 }
563
564 // return value:
565 // 0 = EOF or no stream found
566 // 1 = successfully read a packet
567 static int demux_real_fill_buffer(demuxer_t *demuxer, demux_stream_t *dsds)
568 {
569 real_priv_t *priv = demuxer->priv;
570 demux_stream_t *ds = NULL;
571 int len;
572 unsigned int timestamp;
573 int stream_id;
574 #ifdef CRACK_MATRIX
575 int i;
576 #endif
577 int flags;
578 int version;
579 int reserved;
580 demux_packet_t *dp;
581 int x, sps, cfs, sph, spc, w;
582 int audioreorder_getnextpk = 0;
583
584 // Don't demux video if video codec init failed
585 if (demuxer->video->id >= 0 && !demuxer->video->sh)
586 demuxer->video->id = -2;
587
588 while(!stream_eof(demuxer->stream)){
589
590 /* Handle audio/video demxing switch for multirate files (non-interleaved) */
591 if (priv->is_multirate && priv->stream_switch) {
592 if (priv->current_apacket >= priv->index_table_size[demuxer->audio->id])
593 demuxer->audio->eof = 1;
594 if (priv->current_vpacket >= priv->index_table_size[demuxer->video->id])
595 demuxer->video->eof = 1;
596 if (demuxer->audio->eof && demuxer->video->eof)
597 return 0;
598 else if (!demuxer->audio->eof && demuxer->video->eof)
599 stream_seek(demuxer->stream, priv->audio_curpos); // Get audio
600 else if (demuxer->audio->eof && !demuxer->video->eof)
601 stream_seek(demuxer->stream, priv->video_curpos); // Get video
602 else if (priv->index_table[demuxer->audio->id][priv->current_apacket].timestamp <
603 priv->index_table[demuxer->video->id][priv->current_vpacket].timestamp)
604 stream_seek(demuxer->stream, priv->audio_curpos); // Get audio
605 else
606 stream_seek(demuxer->stream, priv->video_curpos); // Get video
607 priv->stream_switch = 0;
608 }
609
610 demuxer->filepos = stream_tell(demuxer->stream);
611 version = stream_read_word(demuxer->stream); /* version */
612 len = stream_read_word(demuxer->stream);
613 if ((version==0x4441) && (len==0x5441)) { // new data chunk
614 mp_msg(MSGT_DEMUX,MSGL_INFO,"demux_real: New data chunk is coming!!!\n");
615 if (priv->is_multirate)
616 return 0; // EOF
617 stream_skip(demuxer->stream,14);
618 demuxer->filepos = stream_tell(demuxer->stream);
619 version = stream_read_word(demuxer->stream); /* version */
620 len = stream_read_word(demuxer->stream);
621 } else if ((version == 0x494e) && (len == 0x4458)) {
622 mp_msg(MSGT_DEMUX,MSGL_V,"demux_real: Found INDX chunk. EOF.\n");
623 demuxer->stream->eof=1;
624 return 0;
625 }
626
627
628 if (len == -256){ /* EOF */
629 // printf("len==-256!\n");
630 return 0;
631 }
632 if (len < 12){
633 mp_msg(MSGT_DEMUX, MSGL_V,"%08X: packet v%d len=%d \n",(int)demuxer->filepos,(int)version,(int)len);
634 mp_msg(MSGT_DEMUX, MSGL_WARN,"bad packet len (%d)\n", len);
635 if ((unsigned)demuxer->video->id < MAX_STREAMS) {
636 if (priv->current_vpacket + 1 < priv->index_table_size[demuxer->video->id]) {
637 stream_seek(demuxer->stream, priv->index_table[demuxer->video->id][++priv->current_vpacket].offset);
638 }
639 } else if ((unsigned)demuxer->audio->id < MAX_STREAMS) {
640 if (priv->current_apacket + 1 < priv->index_table_size[demuxer->audio->id]) {
641 stream_seek(demuxer->stream, priv->index_table[demuxer->audio->id][++priv->current_apacket].offset);
642 }
643 }
644 continue; //goto loop;
645 }
646
647 stream_id = stream_read_word(demuxer->stream);
648 timestamp = stream_read_dword(demuxer->stream);
649 reserved = stream_read_char(demuxer->stream);
650 flags = stream_read_char(demuxer->stream);
651 /* flags: */
652 /* 0x1 - reliable */
653 /* 0x2 - keyframe */
654
655 if (version == 1) {
656 int tmp;
657 tmp = stream_read_char(demuxer->stream);
658 mp_msg(MSGT_DEMUX, MSGL_DBG2,"Version: %d, skipped byte is %d\n", version, tmp);
659 len--;
660 }
661
662 if (flags & 2)
663 add_index_item(demuxer, stream_id, timestamp, demuxer->filepos);
664
665 // printf("%08X: packet v%d len=%4d id=%d pts=%6d rvd=%d flags=%d \n",
666 // (int)demuxer->filepos,(int)version,(int)len, stream_id,
667 // (int) timestamp, reserved, flags);
668
669 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "\npacket#%d: pos: 0x%0x, len: %d, id: %d, pts: %u, flags: %x rvd:%d\n",
670 priv->current_packet, (int)demuxer->filepos, len, stream_id, timestamp, flags, reserved);
671
672 priv->current_packet++;
673 len -= 12;
674
675 // printf("s_id=%d aid=%d vid=%d \n",stream_id,demuxer->audio->id,demuxer->video->id);
676
677 /* check stream_id: */
678
679 if(demuxer->audio->id==stream_id){
680 if (priv->audio_need_keyframe == 1&& flags != 0x2)
681 goto discard;
682 got_audio:
683 ds=demuxer->audio;
684 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "packet is audio (id: %d)\n", stream_id);
685
686 if (flags & 2) {
687 priv->sub_packet_cnt = 0;
688 audioreorder_getnextpk = 0;
689 }
690
691 // parse audio chunk:
692 {
693 #ifdef CRACK_MATRIX
694 int spos=stream_tell(demuxer->stream);
695 static int cnt=0;
696 static int cnt2=CRACK_MATRIX;
697 #endif
698 if (((sh_audio_t *)ds->sh)->format == mmioFOURCC('M', 'P', '4', 'A')) {
699 uint16_t sub_packet_lengths[16], sub_packets, i;
700 int totlen = 0;
701 /* AAC in Real: several AAC frames in one Real packet. */
702 /* Second byte, upper four bits: number of AAC frames */
703 /* next n * 2 bytes: length of the AAC frames in bytes, BE */
704 if (len < 2)
705 goto discard;
706 sub_packets = (stream_read_word(demuxer->stream) & 0xf0) >> 4;
707 if (len < 2 * sub_packets)
708 goto discard;
709 for (i = 0; i < sub_packets; i++)
710 totlen += sub_packet_lengths[i] = stream_read_word(demuxer->stream);
711 if (len < totlen )
712 goto discard;
713 for (i = 0; i < sub_packets; i++) {
714 demux_packet_t *dp = new_demux_packet(sub_packet_lengths[i]);
715 stream_read(demuxer->stream, dp->buffer, sub_packet_lengths[i]);
716 if (priv->a_pts != timestamp)
717 dp->pts = timestamp / 1000.0;
718 priv->a_pts = timestamp;
719 dp->pos = demuxer->filepos;
720 ds_add_packet(ds, dp);
721 }
722 return 1;
723 }
724 if ((priv->intl_id[stream_id] == mmioFOURCC('I', 'n', 't', '4')) ||
725 (priv->intl_id[stream_id] == mmioFOURCC('g', 'e', 'n', 'r')) ||
726 (priv->intl_id[stream_id] == mmioFOURCC('s', 'i', 'p', 'r'))) {
727 sps = priv->sub_packet_size[stream_id];
728 sph = priv->sub_packet_h[stream_id];
729 cfs = priv->coded_framesize[stream_id];
730 w = priv->audiopk_size[stream_id];
731 spc = priv->sub_packet_cnt;
732 switch (priv->intl_id[stream_id]) {
733 case mmioFOURCC('I', 'n', 't', '4'):
734 if (len < cfs * sph/2)
735 goto discard;
736 for (x = 0; x < sph / 2; x++)
737 stream_read(demuxer->stream, priv->audio_buf + x * 2 * w + spc * cfs, cfs);
738 break;
739 case mmioFOURCC('g', 'e', 'n', 'r'):
740 if (len < w)
741 goto discard;
742 for (x = 0; x < w / sps; x++)
743 stream_read(demuxer->stream, priv->audio_buf + sps * (sph * x + ((sph + 1) / 2) * (spc & 1) +
744 (spc >> 1)), sps);
745 break;
746 case mmioFOURCC('s', 'i', 'p', 'r'):
747 if (len < w)
748 goto discard;
749 stream_read(demuxer->stream, priv->audio_buf + spc * w, w);
750 if (spc == sph - 1) {
751 int n;
752 int bs = sph * w * 2 / 96; // nibbles per subpacket
753 // Perform reordering
754 for(n=0; n < 38; n++) {
755 int j;
756 int i = bs * sipr_swaps[n][0];
757 int o = bs * sipr_swaps[n][1];
758 // swap nibbles of block 'i' with 'o' TODO: optimize
759 for(j = 0;j < bs; j++) {
760 int x = (i & 1) ? (priv->audio_buf[i >> 1] >> 4) : (priv->audio_buf[i >> 1] & 0x0F);
761 int y = (o & 1) ? (priv->audio_buf[o >> 1] >> 4) : (priv->audio_buf[o >> 1] & 0x0F);
762 if(o & 1)
763 priv->audio_buf[o >> 1] = (priv->audio_buf[o >> 1] & 0x0F) | (x << 4);
764 else
765 priv->audio_buf[o >> 1] = (priv->audio_buf[o >> 1] & 0xF0) | x;
766 if(i & 1)
767 priv->audio_buf[i >> 1] = (priv->audio_buf[i >> 1] & 0x0F) | (y << 4);
768 else
769 priv->audio_buf[i >> 1] = (priv->audio_buf[i >> 1] & 0xF0) | y;
770 ++i; ++o;
771 }
772 }
773 }
774 break;
775 }
776 priv->audio_need_keyframe = 0;
777 priv->audio_timestamp[priv->sub_packet_cnt] = (priv->a_pts==timestamp) ? MP_NOPTS_VALUE : (timestamp/1000.0);
778 priv->a_pts = timestamp;
779 if (priv->sub_packet_cnt == 0)
780 priv->audio_filepos = demuxer->filepos;
781 if (++(priv->sub_packet_cnt) < sph)
782 audioreorder_getnextpk = 1;
783 else {
784 int apk_usize = ((sh_audio_t*)ds->sh)->wf->nBlockAlign;
785 audioreorder_getnextpk = 0;
786 priv->sub_packet_cnt = 0;
787 // Release all the audio packets
788 for (x = 0; x < sph*w/apk_usize; x++) {
789 dp = new_demux_packet(apk_usize);
790 memcpy(dp->buffer, priv->audio_buf + x * apk_usize, apk_usize);
791 /* Put timestamp only on packets that correspond to original audio packets in file */
792 if (x * apk_usize % w == 0)
793 dp->pts = priv->audio_timestamp[x * apk_usize / w];
794 dp->pos = priv->audio_filepos; // all equal
795 dp->flags = x ? 0 : 0x10; // Mark first packet as keyframe
796 ds_add_packet(ds, dp);
797 }
798 }
799 } else { // No interleaving
800 dp = new_demux_packet(len);
801 stream_read(demuxer->stream, dp->buffer, len);
802
803 #ifdef CRACK_MATRIX
804 mp_msg(MSGT_DEMUX, MSGL_V,"*** audio block len=%d\n",len);
805 { // HACK - used for reverse engineering the descrambling matrix
806 FILE* f=fopen("test.rm","r+");
807 fseek(f,spos,SEEK_SET);
808 ++cnt;
809 // for(i=0;i<len;i++) dp->buffer[i]=i/0x12;
810 // for(i=0;i<len;i++) dp->buffer[i]=i;
811 // for(i=0;i<len;i++) dp->buffer[i]=cnt;
812 // for(i=0;i<len;i++) dp->buffer[i]=cnt<<4;
813 for(i=0;i<len;i++) dp->buffer[i]=(i==cnt2) ? (cnt+16*(8+cnt)) : 0;
814 if(cnt==6){ cnt=0; ++cnt2; }
815 fwrite(dp->buffer, len, 1, f);
816 fclose(f);
817 if(cnt2>0x150) *((int*)NULL)=1; // sig11 :)
818 }
819 #endif
820 #if 0
821 if( ((sh_audio_t *)ds->sh)->format == 0x2000) {
822 // if DNET, swap bytes, as DNET is byte-swapped AC3:
823 char *ptr = dp->buffer;
824 int i;
825 for (i = 0; i < len; i += 2)
826 {
827 const char tmp = ptr[0];
828 ptr[0] = ptr[1];
829 ptr[1] = tmp;
830 ptr += 2;
831 }
832 }
833 #endif
834 if (priv->audio_need_keyframe == 1) {
835 priv->audio_need_keyframe = 0;
836 } else if(priv->a_pts != timestamp)
837 dp->pts = timestamp/1000.0;
838 priv->a_pts=timestamp;
839 dp->pos = demuxer->filepos;
840 dp->flags = (flags & 0x2) ? 0x10 : 0;
841 ds_add_packet(ds, dp);
842
843 } // codec_id check, codec default case
844 }
845 // we will not use audio index if we use -idx and have a video
846 if(((!demuxer->video->sh && index_mode == 2) || priv->is_multirate) && (unsigned)demuxer->audio->id < MAX_STREAMS) {
847 while (priv->current_apacket + 1 < priv->index_table_size[demuxer->audio->id] &&
848 timestamp > priv->index_table[demuxer->audio->id][priv->current_apacket].timestamp) {
849 priv->current_apacket += 1;
850 priv->stream_switch = 1;
851 }
852 if (priv->stream_switch)
853 priv->audio_curpos = stream_tell(demuxer->stream);
854 }
855
856 // If we're reordering audio packets and we need more data get it
857 if (audioreorder_getnextpk)
858 continue;
859
860 return 1;
861 }
862
863 if(demuxer->video->id==stream_id){
864 got_video:
865 ds=demuxer->video;
866 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "packet is video (id: %d)\n", stream_id);
867
868 // parse video chunk:
869 {
870 // we need a more complicated, 2nd level demuxing, as the video
871 // frames are stored fragmented in the video chunks :(
872 sh_video_t *sh_video = ds->sh;
873 demux_packet_t *dp;
874 unsigned vpkg_header, vpkg_length, vpkg_offset;
875 int vpkg_seqnum=-1;
876 int vpkg_subseq=0;
877
878 while(len>2){
879 dp_hdr_t* dp_hdr;
880 unsigned char* dp_data;
881 uint32_t* extra;
882
883 // printf("xxx len=%d \n",len);
884
885 // read packet header
886 // bit 7: 1=last block in block chain
887 // bit 6: 1=short header (only one block?)
888 vpkg_header=stream_read_char(demuxer->stream); --len;
889 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "hdr: %02X (len=%d) ",vpkg_header,len);
890
891 if (0x40==(vpkg_header&0xc0)) {
892 // seems to be a very short header
893 // 2 bytes, purpose of the second byte yet unknown
894 int bummer;
895 bummer=stream_read_char(demuxer->stream); --len;
896 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "%02X",bummer);
897 vpkg_offset=0;
898 vpkg_length=len;
899 } else {
900
901 if (0==(vpkg_header&0x40)) {
902 // sub-seqnum (bits 0-6: number of fragment. bit 7: ???)
903 vpkg_subseq=stream_read_char(demuxer->stream);
904 --len;
905 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "subseq: %02X ",vpkg_subseq);
906 vpkg_subseq&=0x7f;
907 }
908
909 // size of the complete packet
910 // bit 14 is always one (same applies to the offset)
911 vpkg_length=stream_read_word(demuxer->stream);
912 len-=2;
913 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "l: %02X %02X ",vpkg_length>>8,vpkg_length&0xff);
914 if (!(vpkg_length&0xC000)) {
915 vpkg_length<<=16;
916 vpkg_length|=(uint16_t)stream_read_word(demuxer->stream);
917 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "l+: %02X %02X ",(vpkg_length>>8)&0xff,vpkg_length&0xff);
918 len-=2;
919 } else
920 vpkg_length&=0x3fff;
921
922 // offset of the following data inside the complete packet
923 // Note: if (hdr&0xC0)==0x80 then offset is relative to the
924 // _end_ of the packet, so it's equal to fragment size!!!
925 vpkg_offset=stream_read_word(demuxer->stream);
926 len-=2;
927 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "o: %02X %02X ",vpkg_offset>>8,vpkg_offset&0xff);
928 if (!(vpkg_offset&0xC000)) {
929 vpkg_offset<<=16;
930 vpkg_offset|=(uint16_t)stream_read_word(demuxer->stream);
931 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "o+: %02X %02X ",(vpkg_offset>>8)&0xff,vpkg_offset&0xff);
932 len-=2;
933 } else
934 vpkg_offset&=0x3fff;
935
936 vpkg_seqnum=stream_read_char(demuxer->stream); --len;
937 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "seq: %02X ",vpkg_seqnum);
938 }
939 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "\n");
940 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "blklen=%d\n", len);
941 mp_msg(MSGT_DEMUX,MSGL_DBG2, "block: hdr=0x%0x, len=%d, offset=%d, seqnum=%d\n",
942 vpkg_header, vpkg_length, vpkg_offset, vpkg_seqnum);
943
944 if(ds->asf_packet){
945 dp=ds->asf_packet;
946 dp_hdr=(dp_hdr_t*)dp->buffer;
947 dp_data=dp->buffer+sizeof(dp_hdr_t);
948 extra=(uint32_t*)(dp->buffer+dp_hdr->chunktab);
949 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "we have an incomplete packet (oldseq=%d new=%d)\n",ds->asf_seq,vpkg_seqnum);
950 // we have an incomplete packet:
951 if(ds->asf_seq!=vpkg_seqnum){
952 // this fragment is for new packet, close the old one
953 mp_msg(MSGT_DEMUX,MSGL_DBG2, "closing probably incomplete packet, len: %d \n",dp->len);
954 queue_video_packet(priv, ds, dp);
955 ds->asf_packet=NULL;
956 } else {
957 // append data to it!
958 ++dp_hdr->chunks;
959 mp_msg(MSGT_DEMUX,MSGL_DBG2,"[chunks=%d subseq=%d]\n",dp_hdr->chunks,vpkg_subseq);
960 if(dp_hdr->chunktab+8*(1+dp_hdr->chunks)>dp->len){
961 // increase buffer size, this should not happen!
962 mp_msg(MSGT_DEMUX,MSGL_WARN, "chunktab buffer too small!!!!!\n");
963 dp->len=dp_hdr->chunktab+8*(4+dp_hdr->chunks);
964 dp->buffer=realloc(dp->buffer,dp->len+MP_INPUT_BUFFER_PADDING_SIZE);
965 memset(dp->buffer + dp->len, 0, MP_INPUT_BUFFER_PADDING_SIZE);
966 // re-calc pointers:
967 dp_hdr=(dp_hdr_t*)dp->buffer;
968 dp_data=dp->buffer+sizeof(dp_hdr_t);
969 extra=(uint32_t*)(dp->buffer+dp_hdr->chunktab);
970 }
971 extra[2*dp_hdr->chunks+0]=le2me_32(1);
972 extra[2*dp_hdr->chunks+1]=le2me_32(dp_hdr->len);
973 if(0x80==(vpkg_header&0xc0)){
974 // last fragment!
975 if(dp_hdr->len!=vpkg_length-vpkg_offset)
976 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);
977 if (vpkg_offset > dp->len - sizeof(dp_hdr_t) - dp_hdr->len) vpkg_offset = dp->len - sizeof(dp_hdr_t) - dp_hdr->len;
978 stream_read(demuxer->stream, dp_data+dp_hdr->len, vpkg_offset);
979 if((dp_data[dp_hdr->len]&0x20) && (sh_video->format==0x30335652)) --dp_hdr->chunks; else
980 dp_hdr->len+=vpkg_offset;
981 len-=vpkg_offset;
982 mp_dbg(MSGT_DEMUX,MSGL_DBG2, "fragment (%d bytes) appended, %d bytes left\n",vpkg_offset,len);
983 // we know that this is the last fragment -> we can close the packet!
984 queue_video_packet(priv, ds, dp);
985 ds->asf_packet=NULL;
986 // continue parsing
987 continue;
988 }
989 // non-last fragment:
990 if(dp_hdr->len!=vpkg_offset)
991 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);
992 if (len > dp->len - sizeof(dp_hdr_t) - dp_hdr->len) len = dp->len - sizeof(dp_hdr_t) - dp_hdr->len;
993 stream_read(demuxer->stream, dp_data+dp_hdr->len, len);
994 if((dp_data[dp_hdr->len]&0x20) && (sh_video->format==0x30335652)) --dp_hdr->chunks; else
995 dp_hdr->len+=len;
996 len=0;
997 break; // no more fragments in this chunk!
998 }
999 }
1000 // create new packet!
1001 dp = new_demux_packet(sizeof(dp_hdr_t)+vpkg_length+8*(1+2*(vpkg_header&0x3F)));
1002 // the timestamp seems to be in milliseconds
1003 dp->pos = demuxer->filepos;
1004 dp->flags = (flags & 0x2) ? 0x10 : 0;
1005 ds->asf_seq = vpkg_seqnum;
1006 dp_hdr=(dp_hdr_t*)dp->buffer;
1007 dp_hdr->chunks=0;
1008 dp_hdr->timestamp=timestamp;
1009 dp_hdr->chunktab=sizeof(dp_hdr_t)+vpkg_length;
1010 dp_data=dp->buffer+sizeof(dp_hdr_t);
1011 extra=(uint32_t*)(dp->buffer+dp_hdr->chunktab);
1012 extra[0]=le2me_32(1); extra[1]=0; // offset of the first chunk
1013 if(0x00==(vpkg_header&0xc0)){
1014 // first fragment:
1015 if (len > dp->len - sizeof(dp_hdr_t)) len = dp->len - sizeof(dp_hdr_t);
1016 dp_hdr->len=len;
1017 stream_read(demuxer->stream, dp_data, len);
1018 ds->asf_packet=dp;
1019 len=0;
1020 break;
1021 }
1022 // whole packet (not fragmented):
1023 if (vpkg_length > len) {
1024 mp_msg(MSGT_DEMUX, MSGL_WARN,"\n******** WARNING: vpkg_length=%i > len=%i ********\n", vpkg_length, len);
1025 /*
1026 * To keep the video stream rolling, we need to break
1027 * here. We shouldn't touch len to make sure rest of the
1028 * broken packet is skipped.
1029 */
1030 break;
1031 }
1032 dp_hdr->len=vpkg_length; len-=vpkg_length;
1033 stream_read(demuxer->stream, dp_data, vpkg_length);
1034 queue_video_packet(priv, ds, dp);
1035
1036 } // while(len>0)
1037
1038 if(len){
1039 mp_msg(MSGT_DEMUX, MSGL_WARN,"\n******** !!!!!!!! BUG!! len=%d !!!!!!!!!!! ********\n",len);
1040 if(len>0) stream_skip(demuxer->stream, len);
1041 }
1042 }
1043 if ((unsigned)demuxer->video->id < MAX_STREAMS) {
1044 while (priv->current_vpacket + 1 < priv->index_table_size[demuxer->video->id] &&
1045 timestamp > priv->index_table[demuxer->video->id][priv->current_vpacket + 1].timestamp) {
1046 priv->current_vpacket += 1;
1047 priv->stream_switch = 1;
1048 }
1049 if (priv->stream_switch)
1050 priv->video_curpos = stream_tell(demuxer->stream);
1051 }
1052
1053 return 1;
1054 }
1055
1056 if((unsigned)stream_id<MAX_STREAMS){
1057
1058 if(demuxer->audio->id==-1 && demuxer->a_streams[stream_id]){
1059 sh_audio_t *sh = demuxer->a_streams[stream_id];
1060 demuxer->audio->id=stream_id;
1061 sh->ds=demuxer->audio;
1062 demuxer->audio->sh=sh;
1063 priv->audio_buf = calloc(priv->sub_packet_h[demuxer->audio->id], priv->audiopk_size[demuxer->audio->id]);
1064 priv->audio_timestamp = calloc(priv->sub_packet_h[demuxer->audio->id], sizeof(double));
1065 mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected RM audio ID = %d\n",stream_id);
1066 goto got_audio;
1067 }
1068
1069 if(demuxer->video->id==-1 && demuxer->v_streams[stream_id]){
1070 sh_video_t *sh = demuxer->v_streams[stream_id];
1071 demuxer->video->id=stream_id;
1072 sh->ds=demuxer->video;
1073 demuxer->video->sh=sh;
1074 mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected RM video ID = %d\n",stream_id);
1075 goto got_video;
1076 }
1077
1078 }
1079
1080 mp_msg(MSGT_DEMUX,MSGL_DBG2, "unknown stream id (%d)\n", stream_id);
1081 discard:
1082 stream_skip(demuxer->stream, len);
1083 }// goto loop;
1084 return 0;
1085 }
1086
1087 static demuxer_t* demux_open_real(demuxer_t* demuxer)
1088 {
1089 real_priv_t* priv = demuxer->priv;
1090 int num_of_headers;
1091 int a_streams=0;
1092 int v_streams=0;
1093 int i;
1094 int header_size;
1095
1096 header_size = stream_read_dword(demuxer->stream); /* header size */
1097 mp_msg(MSGT_DEMUX,MSGL_V, "real: Header size: %d\n", header_size);
1098 i = stream_read_word(demuxer->stream); /* version */
1099 mp_msg(MSGT_DEMUX,MSGL_V, "real: Header object version: %d\n", i);
1100 if (header_size == 0x10)
1101 i = stream_read_word(demuxer->stream);
1102 else /* we should test header_size here too. */
1103 i = stream_read_dword(demuxer->stream);
1104 mp_msg(MSGT_DEMUX,MSGL_V, "real: File version: %d\n", i);
1105 num_of_headers = stream_read_dword(demuxer->stream);
1106
1107 /* parse chunks */
1108 for (i = 1; i <= num_of_headers; i++)
1109 // for (i = 1; ; i++)
1110 {
1111 int chunk_id, chunk_pos, chunk_size;
1112
1113 chunk_pos = stream_tell(demuxer->stream);
1114 chunk_id = stream_read_dword_le(demuxer->stream);
1115 chunk_size = stream_read_dword(demuxer->stream);
1116
1117 stream_skip(demuxer->stream, 2); /* version */
1118
1119 mp_msg(MSGT_DEMUX,MSGL_V, "Chunk: %.4s (%x) (size: 0x%x, offset: 0x%x)\n",
1120 (char *)&chunk_id, chunk_id, chunk_size, chunk_pos);
1121
1122 if (chunk_id != MKTAG('D', 'A', 'T', 'A') && chunk_size < 10){
1123 mp_msg(MSGT_DEMUX,MSGL_ERR,"demux_real: invalid chunksize! (%d)\n",chunk_size);
1124 break; //return;
1125 }
1126
1127 switch(chunk_id)
1128 {
1129 case MKTAG('P', 'R', 'O', 'P'):
1130 /* Properties header */
1131
1132 stream_skip(demuxer->stream, 4); /* max bitrate */
1133 stream_skip(demuxer->stream, 4); /* avg bitrate */
1134 stream_skip(demuxer->stream, 4); /* max packet size */
1135 stream_skip(demuxer->stream, 4); /* avg packet size */
1136 stream_skip(demuxer->stream, 4); /* nb packets */
1137 priv->duration = stream_read_dword(demuxer->stream)/1000; /* duration */
1138 stream_skip(demuxer->stream, 4); /* preroll */
1139 priv->index_chunk_offset = stream_read_dword(demuxer->stream);
1140 mp_msg(MSGT_DEMUX,MSGL_V,"First index chunk offset: 0x%x\n", priv->index_chunk_offset);
1141 priv->data_chunk_offset = stream_read_dword(demuxer->stream)+10;
1142 mp_msg(MSGT_DEMUX,MSGL_V,"First data chunk offset: 0x%x\n", priv->data_chunk_offset);
1143 stream_skip(demuxer->stream, 2); /* nb streams */
1144 #if 0
1145 stream_skip(demuxer->stream, 2); /* flags */
1146 #else
1147 {
1148 int flags = stream_read_word(demuxer->stream);
1149
1150 if (flags)
1151 {
1152 mp_msg(MSGT_DEMUX,MSGL_V,"Flags (%x): ", flags);
1153 if (flags & 0x1)
1154 mp_msg(MSGT_DEMUX,MSGL_V,"[save allowed] ");
1155 if (flags & 0x2)
1156 mp_msg(MSGT_DEMUX,MSGL_V,"[perfect play (more buffers)] ");
1157 if (flags & 0x4)
1158 mp_msg(MSGT_DEMUX,MSGL_V,"[live broadcast] ");
1159 mp_msg(MSGT_DEMUX,MSGL_V,"\n");
1160 }
1161 }
1162 #endif
1163 break;
1164 case MKTAG('C', 'O', 'N', 'T'):
1165 {
1166 /* Content description header */
1167 char *buf;
1168 int len;
1169
1170 len = stream_read_word(demuxer->stream);
1171 if (len > 0)
1172 {
1173 buf = malloc(len+1);
1174 stream_read(demuxer->stream, buf, len);
1175 buf[len] = 0;
1176 demux_info_add(demuxer, "title", buf);
1177 free(buf);
1178 }
1179
1180 len = stream_read_word(demuxer->stream);
1181 if (len > 0)
1182 {
1183 buf = malloc(len+1);
1184 stream_read(demuxer->stream, buf, len);
1185 buf[len] = 0;
1186 demux_info_add(demuxer, "author", buf);
1187 free(buf);
1188 }
1189
1190 len = stream_read_word(demuxer->stream);
1191 if (len > 0)
1192 {
1193 buf = malloc(len+1);
1194 stream_read(demuxer->stream, buf, len);
1195 buf[len] = 0;
1196 demux_info_add(demuxer, "copyright", buf);
1197 free(buf);
1198 }
1199
1200 len = stream_read_word(demuxer->stream);
1201 if (len > 0)
1202 {
1203 buf = malloc(len+1);
1204 stream_read(demuxer->stream, buf, len);
1205 buf[len] = 0;
1206 demux_info_add(demuxer, "comment", buf);
1207 free(buf);
1208 }
1209 break;
1210 }
1211 case MKTAG('M', 'D', 'P', 'R'):
1212 {
1213 /* Media properties header */
1214 int stream_id;
1215 int bitrate;
1216 int codec_data_size;
1217 int codec_pos;
1218 int tmp;
1219 int len;
1220 char *descr, *mimet = NULL;
1221
1222 stream_id = stream_read_word(demuxer->stream);
1223 mp_msg(MSGT_DEMUX,MSGL_V,"Found new stream (id: %d)\n", stream_id);
1224
1225 stream_skip(demuxer->stream, 4); /* max bitrate */
1226 bitrate = stream_read_dword(demuxer->stream); /* avg bitrate */
1227 stream_skip(demuxer->stream, 4); /* max packet size */
1228 stream_skip(demuxer->stream, 4); /* avg packet size */
1229 stream_skip(demuxer->stream, 4); /* start time */
1230 stream_skip(demuxer->stream, 4); /* preroll */
1231 stream_skip(demuxer->stream, 4); /* duration */
1232
1233 if ((len = stream_read_char(demuxer->stream)) > 0) {
1234 descr = malloc(len+1);
1235 stream_read(demuxer->stream, descr, len);
1236 descr[len] = 0;
1237 mp_msg(MSGT_DEMUX, MSGL_INFO,"Stream description: %s\n", descr);
1238 free(descr);
1239 }
1240 if ((len = stream_read_char(demuxer->stream)) > 0) {
1241 mimet = malloc(len+1);
1242 stream_read(demuxer->stream, mimet, len);
1243 mimet[len] = 0;
1244 mp_msg(MSGT_DEMUX, MSGL_INFO,"Stream mimetype: %s\n", mimet);
1245 }
1246
1247 /* Type specific header */
1248 codec_data_size = stream_read_dword(demuxer->stream);
1249 codec_pos = stream_tell(demuxer->stream);
1250
1251 #ifdef MP_DEBUG
1252 #define stream_skip(st,siz) { int i; for(i=0;i<siz;i++) mp_msg(MSGT_DEMUX,MSGL_V," %02X",stream_read_char(st)); mp_msg(MSGT_DEMUX,MSGL_V,"\n");}
1253 #endif
1254
1255 if (!strncmp(mimet,"audio/",6)) {
1256 if (strstr(mimet,"x-pn-realaudio") || strstr(mimet,"x-pn-multirate-realaudio")) {
1257 tmp = stream_read_dword(demuxer->stream);
1258 if (tmp != MKTAG(0xfd, 'a', 'r', '.'))
1259 {
1260 mp_msg(MSGT_DEMUX,MSGL_V,"Audio: can't find .ra in codec data\n");
1261 } else {
1262 /* audio header */
1263 sh_audio_t *sh = new_sh_audio(demuxer, stream_id);
1264 char buf[128]; /* for codec name */
1265 int frame_size;
1266 int sub_packet_size;
1267 int sub_packet_h;
1268 int version;
1269 int flavor;
1270 int coded_frame_size;
1271 int codecdata_length;
1272 int i;
1273 char *buft;
1274 int hdr_size;
1275 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "[%s] Audio stream found, -aid %d\n", "real", stream_id);
1276 mp_msg(MSGT_DEMUX,MSGL_V,"Found audio stream!\n");
1277 version = stream_read_word(demuxer->stream);
1278 mp_msg(MSGT_DEMUX,MSGL_V,"version: %d\n", version);
1279 if (version == 3) {
1280 stream_skip(demuxer->stream, 2);
1281 stream_skip(demuxer->stream, 10);
1282 stream_skip(demuxer->stream, 4);
1283 // Name, author, (c) are also in CONT tag
1284 if ((i = stream_read_char(demuxer->stream)) != 0) {
1285 buft = malloc(i+1);
1286 stream_read(demuxer->stream, buft, i);
1287 buft[i] = 0;
1288 demux_info_add(demuxer, "Name", buft);
1289 free(buft);
1290 }
1291 if ((i = stream_read_char(demuxer->stream)) != 0) {
1292 buft = malloc(i+1);
1293 stream_read(demuxer->stream, buft, i);
1294 buft[i] = 0;
1295 demux_info_add(demuxer, "Author", buft);
1296 free(buft);
1297 }
1298 if ((i = stream_read_char(demuxer->stream)) != 0) {
1299 buft = malloc(i+1);
1300 stream_read(demuxer->stream, buft, i);
1301 buft[i] = 0;
1302 demux_info_add(demuxer, "Copyright", buft);
1303 free(buft);
1304 }
1305 if ((i = stream_read_char(demuxer->stream)) != 0)
1306 mp_msg(MSGT_DEMUX,MSGL_WARN,"Last header byte is not zero!\n");
1307 stream_skip(demuxer->stream, 1);
1308 i = stream_read_char(demuxer->stream);
1309 sh->format = stream_read_dword_le(demuxer->stream);
1310 if (i != 4) {
1311 mp_msg(MSGT_DEMUX,MSGL_WARN,"Audio FourCC size is not 4 (%d), please report to "
1312 "MPlayer developers\n", i);
1313 stream_skip(demuxer->stream, i - 4);
1314 }
1315 if (sh->format != mmioFOURCC('l','p','c','J')) {
1316 mp_msg(MSGT_DEMUX,MSGL_WARN,"Version 3 audio with FourCC %8x, please report to "
1317 "MPlayer developers\n", sh->format);
1318 }
1319 sh->channels = 1;
1320 sh->samplesize = 16;
1321 sh->samplerate = 8000;
1322 frame_size = 240;
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 = 0x14;
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 if (mimet)
1629 free (mimet);
1630 break;
1631 // }
1632 }
1633 case MKTAG('D', 'A', 'T', 'A'):
1634 goto header_end;
1635 case MKTAG('I', 'N', 'D', 'X'):
1636 default:
1637 mp_msg(MSGT_DEMUX,MSGL_V,"Unknown chunk: %x\n", chunk_id);
1638 stream_skip(demuxer->stream, chunk_size - 10);
1639 break;
1640 }
1641 }
1642
1643 header_end:
1644 if(priv->is_multirate) {
1645 mp_msg(MSGT_DEMUX,MSGL_V,"Selected video id %d audio id %d\n", demuxer->video->id, demuxer->audio->id);
1646 /* Perform some sanity checks to avoid checking streams id all over the code*/
1647 if (demuxer->audio->id >= MAX_STREAMS) {
1648 mp_msg(MSGT_DEMUX,MSGL_ERR,"Invalid audio stream %d. No sound will be played.\n", demuxer->audio->id);
1649 demuxer->audio->id = -2;
1650 } else if ((demuxer->audio->id >= 0) && (priv->str_data_offset[demuxer->audio->id] == 0)) {
1651 mp_msg(MSGT_DEMUX,MSGL_ERR,"Audio stream %d not found. No sound will be played.\n", demuxer->audio->id);
1652 demuxer->audio->id = -2;
1653 }
1654 if (demuxer->video->id >= MAX_STREAMS) {
1655 mp_msg(MSGT_DEMUX,MSGL_ERR,"Invalid video stream %d. No video will be played.\n", demuxer->video->id);
1656 demuxer->video->id = -2;
1657 } else if ((demuxer->video->id >= 0) && (priv->str_data_offset[demuxer->video->id] == 0)) {
1658 mp_msg(MSGT_DEMUX,MSGL_ERR,"Video stream %d not found. No video will be played.\n", demuxer->video->id);
1659 demuxer->video->id = -2;
1660 }
1661 }
1662
1663 if(priv->is_multirate && ((demuxer->video->id >= 0) || (demuxer->audio->id >=0))) {
1664 /* If audio or video only, seek to right place and behave like standard file */
1665 if (demuxer->video->id < 0) {
1666 // Stream is audio only, or -novideo
1667 stream_seek(demuxer->stream, priv->data_chunk_offset = priv->str_data_offset[demuxer->audio->id]+10);
1668 priv->is_multirate = 0;
1669 }
1670 if (demuxer->audio->id < 0) {
1671 // Stream is video only, or -nosound
1672 stream_seek(demuxer->stream, priv->data_chunk_offset = priv->str_data_offset[demuxer->video->id]+10);
1673 priv->is_multirate = 0;
1674 }
1675 }
1676
1677 if(!priv->is_multirate) {
1678 // printf("i=%d num_of_headers=%d \n",i,num_of_headers);
1679 priv->num_of_packets = stream_read_dword(demuxer->stream);
1680 stream_skip(demuxer->stream, 4); /* next data header */
1681
1682 mp_msg(MSGT_DEMUX,MSGL_V,"Packets in file: %d\n", priv->num_of_packets);
1683
1684 if (priv->num_of_packets == 0)
1685 priv->num_of_packets = -10;
1686 } else {
1687 priv->audio_curpos = priv->str_data_offset[demuxer->audio->id] + 18;
1688 stream_seek(demuxer->stream, priv->str_data_offset[demuxer->audio->id]+10);
1689 priv->a_num_of_packets=priv->a_num_of_packets = stream_read_dword(demuxer->stream);
1690 priv->video_curpos = priv->str_data_offset[demuxer->video->id] + 18;
1691 stream_seek(demuxer->stream, priv->str_data_offset[demuxer->video->id]+10);
1692 priv->v_num_of_packets = stream_read_dword(demuxer->stream);
1693 priv->stream_switch = 1;
1694 /* Index required for multirate playback, force building if it's not there */
1695 /* but respect user request to force index regeneration */
1696 if (index_mode == -1)
1697 index_mode = 1;
1698 }
1699
1700
1701 priv->audio_need_keyframe = 0;
1702 priv->video_after_seek = 0;
1703
1704 switch (index_mode){
1705 case -1: // untouched
1706 if ((demuxer->stream->flags & MP_STREAM_SEEK) == MP_STREAM_SEEK &&
1707 priv->index_chunk_offset && parse_index_chunk(demuxer))
1708 {
1709 demuxer->seekable = 1;
1710 }
1711 break;
1712 case 1: // use (generate index)
1713 if (priv->index_chunk_offset && parse_index_chunk(demuxer))
1714 {
1715 demuxer->seekable = 1;
1716 } else {
1717 generate_index(demuxer);
1718 demuxer->seekable = 1;
1719 }
1720 break;
1721 case 2: // force generating index
1722 generate_index(demuxer);
1723 demuxer->seekable = 1;
1724 break;
1725 default: // do nothing
1726 break;
1727 }
1728
1729 // detect streams:
1730 if(demuxer->video->id==-1 && v_streams>0){
1731 // find the valid video stream:
1732 if(!ds_fill_buffer(demuxer->video)){
1733 mp_msg(MSGT_DEMUXER, MSGL_INFO, "RM: %s",
1734 mp_gtext("No video stream found.\n"));
1735 }
1736 }
1737 if(demuxer->audio->id==-1 && a_streams>0){
1738 // find the valid audio stream:
1739 if(!ds_fill_buffer(demuxer->audio)){
1740 mp_msg(MSGT_DEMUXER, MSGL_INFO, "RM: %s",
1741 mp_gtext("No audio stream found -> no sound.\n"));
1742 }
1743 }
1744
1745 if(demuxer->video->sh){
1746 sh_video_t *sh=demuxer->video->sh;
1747 mp_msg(MSGT_DEMUX,MSGL_V,"VIDEO: %.4s [%08X,%08X] %dx%d (aspect %4.2f) %4.2f fps\n",
1748 (char *)&sh->format,((unsigned int*)(sh->bih+1))[1],((unsigned int*)(sh->bih+1))[0],
1749 sh->disp_w,sh->disp_h,sh->aspect,sh->fps);
1750 }
1751
1752 if(demuxer->audio->sh){
1753 sh_audio_t *sh=demuxer->audio->sh;
1754 mp_msg(MSGT_DEMUX,MSGL_V,"AUDIO: %.4s [%08X]\n",
1755 (char *)&sh->format,sh->format);
1756 }
1757
1758 return demuxer;
1759 }
1760
1761 static void demux_close_real(demuxer_t *demuxer)
1762 {
1763 int i;
1764 real_priv_t* priv = demuxer->priv;
1765
1766 if (priv){
1767 for(i=0; i<MAX_STREAMS; i++)
1768 if(priv->index_table[i])
1769 free(priv->index_table[i]);
1770 if (priv->audio_buf)
1771 free(priv->audio_buf);
1772 if (priv->audio_timestamp)
1773 free(priv->audio_timestamp);
1774 free(priv);
1775 }
1776
1777 return;
1778 }
1779
1780 /* please upload RV10 samples WITH INDEX CHUNK */
1781 static void demux_seek_real(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
1782 {
1783 real_priv_t *priv = demuxer->priv;
1784 demux_stream_t *d_audio = demuxer->audio;
1785 demux_stream_t *d_video = demuxer->video;
1786 sh_audio_t *sh_audio = d_audio->sh;
1787 sh_video_t *sh_video = d_video->sh;
1788 int vid = d_video->id, aid = d_audio->id;
1789 int next_offset = 0;
1790 int64_t cur_timestamp = 0;
1791 int streams = 0;
1792 int retried = 0;
1793
1794
1795 if (sh_video && (unsigned)vid < MAX_STREAMS && priv->index_table_size[vid])
1796 streams |= 1;
1797 if (sh_audio && (unsigned)aid < MAX_STREAMS && priv->index_table_size[aid])
1798 streams |= 2;
1799
1800 // printf("streams: %d\n", streams);
1801
1802 if (!streams)
1803 return;
1804
1805 if (flags & SEEK_ABSOLUTE)
1806 priv->current_apacket = priv->current_vpacket = 0;
1807 if (flags & SEEK_FACTOR)
1808 rel_seek_secs *= priv->duration;
1809
1810 if ((streams & 1) && priv->current_vpacket >= priv->index_table_size[vid])
1811 priv->current_vpacket = priv->index_table_size[vid] - 1;
1812 if ((streams & 2) && priv->current_apacket >= priv->index_table_size[aid])
1813 priv->current_apacket = priv->index_table_size[aid] - 1;
1814
1815 // if (index_mode == 1 || index_mode == 2) {
1816 if (streams & 1) {// use the video index if we have one
1817 cur_timestamp = priv->index_table[vid][priv->current_vpacket].timestamp;
1818 if (rel_seek_secs > 0)
1819 while ((priv->index_table[vid][priv->current_vpacket].timestamp - cur_timestamp) < rel_seek_secs * 1000){
1820 priv->current_vpacket += 1;
1821 if (priv->current_vpacket >= priv->index_table_size[vid]) {
1822 priv->current_vpacket = priv->index_table_size[vid] - 1;
1823 if (!retried) {
1824 stream_seek(demuxer->stream, priv->index_table[vid][priv->current_vpacket].offset);
1825 add_index_segment(demuxer, vid, cur_timestamp + rel_seek_secs * 1000);
1826 retried = 1;
1827 }
1828 else
1829 break;
1830 }
1831 }
1832 else if (rel_seek_secs < 0) {
1833 while ((cur_timestamp - priv->index_table[vid][priv->current_vpacket].timestamp) < - rel_seek_secs * 1000){
1834 priv->current_vpacket -= 1;
1835 if (priv->current_vpacket < 0) {
1836 priv->current_vpacket = 0;
1837 break;
1838 }
1839 }
1840 }
1841 priv->video_curpos = priv->index_table[vid][priv->current_vpacket].offset;
1842 priv->audio_need_keyframe = !priv->is_multirate;
1843 priv->video_after_seek = 1;
1844 }
1845 if (streams & 2) {
1846 if (!(streams & 1)) {
1847 cur_timestamp =
1848 priv->index_table[aid][priv->current_apacket].timestamp;
1849 }
1850 if (rel_seek_secs > 0)
1851 while ((priv->index_table[aid][priv->current_apacket].timestamp - cur_timestamp) < rel_seek_secs * 1000){
1852 priv->current_apacket += 1;
1853 if (priv->current_apacket >= priv->index_table_size[aid]) {
1854 priv->current_apacket = priv->index_table_size[aid] - 1;
1855 break;
1856 }
1857 }
1858 else if (rel_seek_secs < 0)
1859 while ((cur_timestamp - priv->index_table[aid][priv->current_apacket].timestamp) < - rel_seek_secs * 1000){
1860 priv->current_apacket -= 1;
1861 if (priv->current_apacket < 0) {
1862 priv->current_apacket = 0;
1863 break;
1864 }
1865 }
1866 priv->audio_curpos = priv->index_table[aid][priv->current_apacket].offset;
1867 }
1868 // }
1869 next_offset = streams & 1 ? priv->video_curpos : priv->audio_curpos;
1870 // printf("seek: pos: %d, current packets: a: %d, v: %d\n",
1871 // next_offset, priv->current_apacket, priv->current_vpacket);
1872 if (next_offset)
1873 stream_seek(demuxer->stream, next_offset);
1874
1875 demux_real_fill_buffer(demuxer, NULL);
1876 }
1877
1878 static int demux_real_control(demuxer_t *demuxer, int cmd, void *arg)
1879 {
1880 real_priv_t *priv = demuxer->priv;
1881 unsigned int lastpts = priv->v_pts ? priv->v_pts : priv->a_pts;
1882
1883 switch (cmd) {
1884 case DEMUXER_CTRL_GET_TIME_LENGTH:
1885 if (priv->duration == 0)
1886 return DEMUXER_CTRL_DONTKNOW;
1887
1888 *((double *)arg) = (double)priv->duration;
1889 return DEMUXER_CTRL_OK;
1890
1891 case DEMUXER_CTRL_GET_PERCENT_POS:
1892 if (priv->duration == 0)
1893 return DEMUXER_CTRL_DONTKNOW;
1894
1895 *((int *)arg) = (int)(100 * lastpts / priv->duration);
1896 return DEMUXER_CTRL_OK;
1897
1898 default:
1899 return DEMUXER_CTRL_NOTIMPL;
1900 }
1901 }
1902
1903
1904 const demuxer_desc_t demuxer_desc_real = {
1905 "Realmedia demuxer",
1906 "real",
1907 "REAL",
1908 "Alex Beregszasi, Florian Schneider, A'rpi, Roberto Togni",
1909 "handles new .RMF files",
1910 DEMUXER_TYPE_REAL,
1911 1, // safe autodetect
1912 real_check_file,
1913 demux_real_fill_buffer,
1914 demux_open_real,
1915 demux_close_real,
1916 demux_seek_real,
1917 demux_real_control
1918 };
mplayer with SMedia Glamo drivers