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VP6F has to be flipped for binary decoder.
[mplayer/glamo.git] / libmpdemux / demuxer.c
blob038b2999cf29214e80419a74fc0ba49a82589f77
1 /*
2 * DEMUXER v2.5
3 *
4 * This file is part of MPlayer.
5 *
6 * MPlayer is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * MPlayer is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <unistd.h>
25
26 #include <sys/types.h>
27 #include <sys/stat.h>
28
29 #include "config.h"
30 #include "mp_msg.h"
31 #include "help_mp.h"
32 #include "m_config.h"
33
34 #include "libvo/fastmemcpy.h"
35
36 #include "stream/stream.h"
37 #include "demuxer.h"
38 #include "stheader.h"
39 #include "mf.h"
40
41 #include "libaf/af_format.h"
42 #include "libmpcodecs/dec_teletext.h"
43
44 #ifdef CONFIG_ASS
45 #include "libass/ass.h"
46 #include "libass/ass_mp.h"
47 #endif
48
49 #ifdef CONFIG_LIBAVCODEC
50 #include "libavcodec/avcodec.h"
51 #if MP_INPUT_BUFFER_PADDING_SIZE < FF_INPUT_BUFFER_PADDING_SIZE
52 #error MP_INPUT_BUFFER_PADDING_SIZE is too small!
53 #endif
54 #endif
55
56 void resync_video_stream(sh_video_t *sh_video);
57 void resync_audio_stream(sh_audio_t *sh_audio);
58
59 // Demuxer list
60 extern const demuxer_desc_t demuxer_desc_rawaudio;
61 extern const demuxer_desc_t demuxer_desc_rawvideo;
62 extern const demuxer_desc_t demuxer_desc_tv;
63 extern const demuxer_desc_t demuxer_desc_mf;
64 extern const demuxer_desc_t demuxer_desc_avi;
65 extern const demuxer_desc_t demuxer_desc_y4m;
66 extern const demuxer_desc_t demuxer_desc_asf;
67 extern const demuxer_desc_t demuxer_desc_real;
68 extern const demuxer_desc_t demuxer_desc_smjpeg;
69 extern const demuxer_desc_t demuxer_desc_matroska;
70 extern const demuxer_desc_t demuxer_desc_realaudio;
71 extern const demuxer_desc_t demuxer_desc_vqf;
72 extern const demuxer_desc_t demuxer_desc_mov;
73 extern const demuxer_desc_t demuxer_desc_vivo;
74 extern const demuxer_desc_t demuxer_desc_fli;
75 extern const demuxer_desc_t demuxer_desc_film;
76 extern const demuxer_desc_t demuxer_desc_roq;
77 extern const demuxer_desc_t demuxer_desc_gif;
78 extern const demuxer_desc_t demuxer_desc_ogg;
79 extern const demuxer_desc_t demuxer_desc_avs;
80 extern const demuxer_desc_t demuxer_desc_pva;
81 extern const demuxer_desc_t demuxer_desc_nsv;
82 extern const demuxer_desc_t demuxer_desc_mpeg_ts;
83 extern const demuxer_desc_t demuxer_desc_lmlm4;
84 extern const demuxer_desc_t demuxer_desc_mpeg_ps;
85 extern const demuxer_desc_t demuxer_desc_mpeg_pes;
86 extern const demuxer_desc_t demuxer_desc_mpeg_es;
87 extern const demuxer_desc_t demuxer_desc_mpeg_gxf;
88 extern const demuxer_desc_t demuxer_desc_mpeg4_es;
89 extern const demuxer_desc_t demuxer_desc_h264_es;
90 extern const demuxer_desc_t demuxer_desc_rawdv;
91 extern const demuxer_desc_t demuxer_desc_mpc;
92 extern const demuxer_desc_t demuxer_desc_audio;
93 extern const demuxer_desc_t demuxer_desc_xmms;
94 extern const demuxer_desc_t demuxer_desc_mpeg_ty;
95 extern const demuxer_desc_t demuxer_desc_rtp;
96 extern const demuxer_desc_t demuxer_desc_rtp_nemesi;
97 extern const demuxer_desc_t demuxer_desc_lavf;
98 extern const demuxer_desc_t demuxer_desc_lavf_preferred;
99 extern const demuxer_desc_t demuxer_desc_aac;
100 extern const demuxer_desc_t demuxer_desc_nut;
101 extern const demuxer_desc_t demuxer_desc_mng;
102
103 /* Please do not add any new demuxers here. If you want to implement a new
104 * demuxer, add it to libavformat, except for wrappers around external
105 * libraries and demuxers requiring binary support. */
106
107 const demuxer_desc_t *const demuxer_list[] = {
108 &demuxer_desc_rawaudio,
109 &demuxer_desc_rawvideo,
110 #ifdef CONFIG_TV
111 &demuxer_desc_tv,
112 #endif
113 &demuxer_desc_mf,
114 #ifdef CONFIG_LIBAVFORMAT
115 &demuxer_desc_lavf_preferred,
116 #endif
117 &demuxer_desc_avi,
118 &demuxer_desc_y4m,
119 &demuxer_desc_asf,
120 &demuxer_desc_nsv,
121 &demuxer_desc_real,
122 &demuxer_desc_smjpeg,
123 &demuxer_desc_matroska,
124 &demuxer_desc_realaudio,
125 &demuxer_desc_vqf,
126 &demuxer_desc_mov,
127 &demuxer_desc_vivo,
128 &demuxer_desc_fli,
129 &demuxer_desc_film,
130 &demuxer_desc_roq,
131 #ifdef CONFIG_GIF
132 &demuxer_desc_gif,
133 #endif
134 #ifdef CONFIG_OGGVORBIS
135 &demuxer_desc_ogg,
136 #endif
137 #ifdef CONFIG_WIN32DLL
138 &demuxer_desc_avs,
139 #endif
140 &demuxer_desc_pva,
141 &demuxer_desc_mpeg_ts,
142 &demuxer_desc_lmlm4,
143 &demuxer_desc_mpeg_ps,
144 &demuxer_desc_mpeg_pes,
145 &demuxer_desc_mpeg_es,
146 &demuxer_desc_mpeg_gxf,
147 &demuxer_desc_mpeg4_es,
148 &demuxer_desc_h264_es,
149 &demuxer_desc_audio,
150 &demuxer_desc_mpeg_ty,
151 #ifdef CONFIG_LIVE555
152 &demuxer_desc_rtp,
153 #endif
154 #ifdef CONFIG_LIBNEMESI
155 &demuxer_desc_rtp_nemesi,
156 #endif
157 #ifdef CONFIG_LIBAVFORMAT
158 &demuxer_desc_lavf,
159 #endif
160 #ifdef CONFIG_MUSEPACK
161 &demuxer_desc_mpc,
162 #endif
163 #ifdef CONFIG_LIBDV095
164 &demuxer_desc_rawdv,
165 #endif
166 &demuxer_desc_aac,
167 #ifdef CONFIG_LIBNUT
168 &demuxer_desc_nut,
169 #endif
170 #ifdef CONFIG_XMMS
171 &demuxer_desc_xmms,
172 #endif
173 #ifdef CONFIG_MNG
174 &demuxer_desc_mng,
175 #endif
176 /* Please do not add any new demuxers here. If you want to implement a new
177 * demuxer, add it to libavformat, except for wrappers around external
178 * libraries and demuxers requiring binary support. */
179 NULL
180 };
181
182 void free_demuxer_stream(demux_stream_t *ds)
183 {
184 ds_free_packs(ds);
185 free(ds);
186 }
187
188 demux_stream_t *new_demuxer_stream(struct demuxer_st *demuxer, int id)
189 {
190 demux_stream_t *ds = malloc(sizeof(demux_stream_t));
191 *ds = (demux_stream_t){
192 .id = id,
193 .demuxer = demuxer,
194 .asf_seq = -1,
195 };
196 return ds;
197 }
198
199
200 /**
201 * Get demuxer description structure for a given demuxer type
202 *
203 * @param file_format type of the demuxer
204 * @return structure for the demuxer, NULL if not found
205 */
206 static const demuxer_desc_t *get_demuxer_desc_from_type(int file_format)
207 {
208 int i;
209
210 for (i = 0; demuxer_list[i]; i++)
211 if (file_format == demuxer_list[i]->type)
212 return demuxer_list[i];
213
214 return NULL;
215 }
216
217
218 demuxer_t *new_demuxer(stream_t *stream, int type, int a_id, int v_id,
219 int s_id, char *filename)
220 {
221 demuxer_t *d = malloc(sizeof(demuxer_t));
222 memset(d, 0, sizeof(demuxer_t));
223 d->stream = stream;
224 d->stream_pts = MP_NOPTS_VALUE;
225 d->reference_clock = MP_NOPTS_VALUE;
226 d->movi_start = stream->start_pos;
227 d->movi_end = stream->end_pos;
228 d->seekable = 1;
229 d->synced = 0;
230 d->filepos = -1;
231 d->audio = new_demuxer_stream(d, a_id);
232 d->video = new_demuxer_stream(d, v_id);
233 d->sub = new_demuxer_stream(d, s_id);
234 d->type = type;
235 if (type)
236 if (!(d->desc = get_demuxer_desc_from_type(type)))
237 mp_msg(MSGT_DEMUXER, MSGL_ERR,
238 "BUG! Invalid demuxer type in new_demuxer(), "
239 "big troubles ahead.");
240 if (filename) // Filename hack for avs_check_file
241 d->filename = strdup(filename);
242 stream_reset(stream);
243 stream_seek(stream, stream->start_pos);
244 return d;
245 }
246
247 extern int dvdsub_id;
248
249 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid)
250 {
251 if (id > MAX_S_STREAMS - 1 || id < 0) {
252 mp_msg(MSGT_DEMUXER, MSGL_WARN,
253 "Requested sub stream id overflow (%d > %d)\n", id,
254 MAX_S_STREAMS);
255 return NULL;
256 }
257 if (demuxer->s_streams[id])
258 mp_msg(MSGT_DEMUXER, MSGL_WARN, "Sub stream %i redefined\n", id);
259 else {
260 sh_sub_t *sh = calloc(1, sizeof(sh_sub_t));
261 demuxer->s_streams[id] = sh;
262 sh->sid = sid;
263 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sid);
264 }
265 if (sid == dvdsub_id) {
266 demuxer->sub->id = id;
267 demuxer->sub->sh = demuxer->s_streams[id];
268 }
269 return demuxer->s_streams[id];
270 }
271
272 void free_sh_sub(sh_sub_t *sh)
273 {
274 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_sub at %p\n", sh);
275 free(sh->extradata);
276 #ifdef CONFIG_ASS
277 if (sh->ass_track)
278 ass_free_track(sh->ass_track);
279 #endif
280 free(sh->lang);
281 free(sh);
282 }
283
284 sh_audio_t *new_sh_audio_aid(demuxer_t *demuxer, int id, int aid)
285 {
286 if (id > MAX_A_STREAMS - 1 || id < 0) {
287 mp_msg(MSGT_DEMUXER, MSGL_WARN,
288 "Requested audio stream id overflow (%d > %d)\n", id,
289 MAX_A_STREAMS);
290 return NULL;
291 }
292 if (demuxer->a_streams[id])
293 mp_msg(MSGT_DEMUXER, MSGL_WARN, MSGTR_AudioStreamRedefined, id);
294 else {
295 sh_audio_t *sh = calloc(1, sizeof(sh_audio_t));
296 mp_msg(MSGT_DEMUXER, MSGL_V, MSGTR_FoundAudioStream, id);
297 demuxer->a_streams[id] = sh;
298 sh->aid = aid;
299 sh->ds = demuxer->audio;
300 // set some defaults
301 sh->samplesize = 2;
302 sh->sample_format = AF_FORMAT_S16_NE;
303 sh->audio_out_minsize = 8192; /* default size, maybe not enough for Win32/ACM */
304 sh->pts = MP_NOPTS_VALUE;
305 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", aid);
306 }
307 return demuxer->a_streams[id];
308 }
309
310 void free_sh_audio(demuxer_t *demuxer, int id)
311 {
312 sh_audio_t *sh = demuxer->a_streams[id];
313 demuxer->a_streams[id] = NULL;
314 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_audio at %p\n", sh);
315 free(sh->wf);
316 free(sh->codecdata);
317 free(sh->lang);
318 free(sh);
319 }
320
321 sh_video_t *new_sh_video_vid(demuxer_t *demuxer, int id, int vid)
322 {
323 if (id > MAX_V_STREAMS - 1 || id < 0) {
324 mp_msg(MSGT_DEMUXER, MSGL_WARN,
325 "Requested video stream id overflow (%d > %d)\n", id,
326 MAX_V_STREAMS);
327 return NULL;
328 }
329 if (demuxer->v_streams[id])
330 mp_msg(MSGT_DEMUXER, MSGL_WARN, MSGTR_VideoStreamRedefined, id);
331 else {
332 sh_video_t *sh = calloc(1, sizeof(sh_video_t));
333 mp_msg(MSGT_DEMUXER, MSGL_V, MSGTR_FoundVideoStream, id);
334 demuxer->v_streams[id] = sh;
335 sh->vid = vid;
336 sh->ds = demuxer->video;
337 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_ID=%d\n", vid);
338 }
339 return demuxer->v_streams[id];
340 }
341
342 void free_sh_video(sh_video_t *sh)
343 {
344 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_video at %p\n", sh);
345 free(sh->bih);
346 free(sh);
347 }
348
349 void free_demuxer(demuxer_t *demuxer)
350 {
351 int i;
352 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing demuxer at %p\n",
353 demuxer);
354 if (demuxer->desc->close)
355 demuxer->desc->close(demuxer);
356 // Very ugly hack to make it behave like old implementation
357 if (demuxer->desc->type == DEMUXER_TYPE_DEMUXERS)
358 goto skip_streamfree;
359 // free streams:
360 for (i = 0; i < MAX_A_STREAMS; i++)
361 if (demuxer->a_streams[i])
362 free_sh_audio(demuxer, i);
363 for (i = 0; i < MAX_V_STREAMS; i++)
364 if (demuxer->v_streams[i])
365 free_sh_video(demuxer->v_streams[i]);
366 for (i = 0; i < MAX_S_STREAMS; i++)
367 if (demuxer->s_streams[i])
368 free_sh_sub(demuxer->s_streams[i]);
369 // free demuxers:
370 free_demuxer_stream(demuxer->audio);
371 free_demuxer_stream(demuxer->video);
372 free_demuxer_stream(demuxer->sub);
373 skip_streamfree:
374 if (demuxer->info) {
375 for (i = 0; demuxer->info[i] != NULL; i++)
376 free(demuxer->info[i]);
377 free(demuxer->info);
378 }
379 free(demuxer->filename);
380 if (demuxer->chapters) {
381 for (i = 0; i < demuxer->num_chapters; i++)
382 free(demuxer->chapters[i].name);
383 free(demuxer->chapters);
384 }
385 if (demuxer->attachments) {
386 for (i = 0; i < demuxer->num_attachments; i++) {
387 free(demuxer->attachments[i].name);
388 free(demuxer->attachments[i].type);
389 free(demuxer->attachments[i].data);
390 }
391 free(demuxer->attachments);
392 }
393 if (demuxer->teletext)
394 teletext_control(demuxer->teletext, TV_VBI_CONTROL_STOP, NULL);
395 free(demuxer);
396 }
397
398
399 void ds_add_packet(demux_stream_t *ds, demux_packet_t *dp)
400 {
401 // append packet to DS stream:
402 ++ds->packs;
403 ds->bytes += dp->len;
404 if (ds->last) {
405 // next packet in stream
406 ds->last->next = dp;
407 ds->last = dp;
408 } else {
409 // first packet in stream
410 ds->first = ds->last = dp;
411 }
412 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
413 "DEMUX: Append packet to %s, len=%d pts=%5.3f pos=%u [packs: A=%d V=%d]\n",
414 (ds == ds->demuxer->audio) ? "d_audio" : "d_video", dp->len,
415 dp->pts, (unsigned int) dp->pos, ds->demuxer->audio->packs,
416 ds->demuxer->video->packs);
417 }
418
419 void ds_read_packet(demux_stream_t *ds, stream_t *stream, int len,
420 double pts, off_t pos, int flags)
421 {
422 demux_packet_t *dp = new_demux_packet(len);
423 len = stream_read(stream, dp->buffer, len);
424 resize_demux_packet(dp, len);
425 dp->pts = pts;
426 dp->pos = pos;
427 dp->flags = flags;
428 // append packet to DS stream:
429 ds_add_packet(ds, dp);
430 }
431
432 // return value:
433 // 0 = EOF or no stream found or invalid type
434 // 1 = successfully read a packet
435
436 int demux_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
437 {
438 // Note: parameter 'ds' can be NULL!
439 return demux->desc->fill_buffer(demux, ds);
440 }
441
442 // return value:
443 // 0 = EOF
444 // 1 = successful
445 #define MAX_ACUMULATED_PACKETS 64
446 int ds_fill_buffer(demux_stream_t *ds)
447 {
448 demuxer_t *demux = ds->demuxer;
449 if (ds->current)
450 free_demux_packet(ds->current);
451 ds->current = NULL;
452 if (mp_msg_test(MSGT_DEMUXER, MSGL_DBG3)) {
453 if (ds == demux->audio)
454 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
455 "ds_fill_buffer(d_audio) called\n");
456 else if (ds == demux->video)
457 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
458 "ds_fill_buffer(d_video) called\n");
459 else if (ds == demux->sub)
460 mp_dbg(MSGT_DEMUXER, MSGL_DBG3, "ds_fill_buffer(d_sub) called\n");
461 else
462 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
463 "ds_fill_buffer(unknown 0x%X) called\n", (unsigned int) ds);
464 }
465 while (1) {
466 if (ds->packs) {
467 demux_packet_t *p = ds->first;
468 #if 0
469 if (demux->reference_clock != MP_NOPTS_VALUE) {
470 if ( p->pts != MP_NOPTS_VALUE
471 && p->pts > demux->reference_clock
472 && ds->packs < MAX_ACUMULATED_PACKETS) {
473 if (demux_fill_buffer(demux, ds))
474 continue;
475 }
476 }
477 #endif
478 // copy useful data:
479 ds->buffer = p->buffer;
480 ds->buffer_pos = 0;
481 ds->buffer_size = p->len;
482 ds->pos = p->pos;
483 ds->dpos += p->len; // !!!
484 ++ds->pack_no;
485 if (p->pts != MP_NOPTS_VALUE) {
486 ds->pts = p->pts;
487 ds->pts_bytes = 0;
488 }
489 ds->pts_bytes += p->len; // !!!
490 if (p->stream_pts != MP_NOPTS_VALUE)
491 demux->stream_pts = p->stream_pts;
492 ds->flags = p->flags;
493 // unlink packet:
494 ds->bytes -= p->len;
495 ds->current = p;
496 ds->first = p->next;
497 if (!ds->first)
498 ds->last = NULL;
499 --ds->packs;
500 return 1;
501 }
502 if (demux->audio->packs >= MAX_PACKS
503 || demux->audio->bytes >= MAX_PACK_BYTES) {
504 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyAudioInBuffer,
505 demux->audio->packs, demux->audio->bytes);
506 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
507 break;
508 }
509 if (demux->video->packs >= MAX_PACKS
510 || demux->video->bytes >= MAX_PACK_BYTES) {
511 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyVideoInBuffer,
512 demux->video->packs, demux->video->bytes);
513 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
514 break;
515 }
516 if (!demux_fill_buffer(demux, ds)) {
517 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
518 "ds_fill_buffer()->demux_fill_buffer() failed\n");
519 break; // EOF
520 }
521 }
522 ds->buffer_pos = ds->buffer_size = 0;
523 ds->buffer = NULL;
524 mp_msg(MSGT_DEMUXER, MSGL_V,
525 "ds_fill_buffer: EOF reached (stream: %s) \n",
526 ds == demux->audio ? "audio" : "video");
527 ds->eof = 1;
528 return 0;
529 }
530
531 int demux_read_data(demux_stream_t *ds, unsigned char *mem, int len)
532 {
533 int x;
534 int bytes = 0;
535 while (len > 0) {
536 x = ds->buffer_size - ds->buffer_pos;
537 if (x == 0) {
538 if (!ds_fill_buffer(ds))
539 return bytes;
540 } else {
541 if (x > len)
542 x = len;
543 if (mem)
544 fast_memcpy(mem + bytes, &ds->buffer[ds->buffer_pos], x);
545 bytes += x;
546 len -= x;
547 ds->buffer_pos += x;
548 }
549 }
550 return bytes;
551 }
552
553 /**
554 * \brief read data until the given 3-byte pattern is encountered, up to maxlen
555 * \param mem memory to read data into, may be NULL to discard data
556 * \param maxlen maximum number of bytes to read
557 * \param read number of bytes actually read
558 * \param pattern pattern to search for (lowest 8 bits are ignored)
559 * \return whether pattern was found
560 */
561 int demux_pattern_3(demux_stream_t *ds, unsigned char *mem, int maxlen,
562 int *read, uint32_t pattern)
563 {
564 register uint32_t head = 0xffffff00;
565 register uint32_t pat = pattern & 0xffffff00;
566 int total_len = 0;
567 do {
568 register unsigned char *ds_buf = &ds->buffer[ds->buffer_size];
569 int len = ds->buffer_size - ds->buffer_pos;
570 register long pos = -len;
571 if (unlikely(pos >= 0)) { // buffer is empty
572 ds_fill_buffer(ds);
573 continue;
574 }
575 do {
576 head |= ds_buf[pos];
577 head <<= 8;
578 } while (++pos && head != pat);
579 len += pos;
580 if (total_len + len > maxlen)
581 len = maxlen - total_len;
582 len = demux_read_data(ds, mem ? &mem[total_len] : NULL, len);
583 total_len += len;
584 } while ((head != pat || total_len < 3) && total_len < maxlen && !ds->eof);
585 if (read)
586 *read = total_len;
587 return total_len >= 3 && head == pat;
588 }
589
590 void ds_free_packs(demux_stream_t *ds)
591 {
592 demux_packet_t *dp = ds->first;
593 while (dp) {
594 demux_packet_t *dn = dp->next;
595 free_demux_packet(dp);
596 dp = dn;
597 }
598 if (ds->asf_packet) {
599 // free unfinished .asf fragments:
600 free(ds->asf_packet->buffer);
601 free(ds->asf_packet);
602 ds->asf_packet = NULL;
603 }
604 ds->first = ds->last = NULL;
605 ds->packs = 0; // !!!!!
606 ds->bytes = 0;
607 if (ds->current)
608 free_demux_packet(ds->current);
609 ds->current = NULL;
610 ds->buffer = NULL;
611 ds->buffer_pos = ds->buffer_size;
612 ds->pts = 0;
613 ds->pts_bytes = 0;
614 }
615
616 int ds_get_packet(demux_stream_t *ds, unsigned char **start)
617 {
618 int len;
619 if (ds->buffer_pos >= ds->buffer_size) {
620 if (!ds_fill_buffer(ds)) {
621 // EOF
622 *start = NULL;
623 return -1;
624 }
625 }
626 len = ds->buffer_size - ds->buffer_pos;
627 *start = &ds->buffer[ds->buffer_pos];
628 ds->buffer_pos += len;
629 return len;
630 }
631
632 int ds_get_packet_pts(demux_stream_t *ds, unsigned char **start, double *pts)
633 {
634 int len;
635 *pts = MP_NOPTS_VALUE;
636 len = ds_get_packet(ds, start);
637 if (len < 0)
638 return len;
639 // Return pts unless this read starts from the middle of a packet
640 if (len == ds->buffer_pos)
641 *pts = ds->current->pts;
642 return len;
643 }
644
645 int ds_get_packet_sub(demux_stream_t *ds, unsigned char **start)
646 {
647 int len;
648 if (ds->buffer_pos >= ds->buffer_size) {
649 *start = NULL;
650 if (!ds->packs)
651 return -1; // no sub
652 if (!ds_fill_buffer(ds))
653 return -1; // EOF
654 }
655 len = ds->buffer_size - ds->buffer_pos;
656 *start = &ds->buffer[ds->buffer_pos];
657 ds->buffer_pos += len;
658 return len;
659 }
660
661 double ds_get_next_pts(demux_stream_t *ds)
662 {
663 demuxer_t *demux = ds->demuxer;
664 while (!ds->first) {
665 if (demux->audio->packs >= MAX_PACKS
666 || demux->audio->bytes >= MAX_PACK_BYTES) {
667 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyAudioInBuffer,
668 demux->audio->packs, demux->audio->bytes);
669 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
670 return MP_NOPTS_VALUE;
671 }
672 if (demux->video->packs >= MAX_PACKS
673 || demux->video->bytes >= MAX_PACK_BYTES) {
674 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyVideoInBuffer,
675 demux->video->packs, demux->video->bytes);
676 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
677 return MP_NOPTS_VALUE;
678 }
679 if (!demux_fill_buffer(demux, ds))
680 return MP_NOPTS_VALUE;
681 }
682 return ds->first->pts;
683 }
684
685 // ====================================================================
686
687 void demuxer_help(void)
688 {
689 int i;
690
691 mp_msg(MSGT_DEMUXER, MSGL_INFO, "Available demuxers:\n");
692 mp_msg(MSGT_DEMUXER, MSGL_INFO, " demuxer: type info: (comment)\n");
693 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DEMUXERS\n");
694 for (i = 0; demuxer_list[i]; i++) {
695 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Don't display special demuxers
696 continue;
697 if (demuxer_list[i]->comment && strlen(demuxer_list[i]->comment))
698 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s (%s)\n",
699 demuxer_list[i]->name, demuxer_list[i]->type,
700 demuxer_list[i]->info, demuxer_list[i]->comment);
701 else
702 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s\n",
703 demuxer_list[i]->name, demuxer_list[i]->type,
704 demuxer_list[i]->info);
705 }
706 }
707
708
709 /**
710 * Get demuxer type for a given demuxer name
711 *
712 * @param demuxer_name string with demuxer name of demuxer number
713 * @param force will be set if demuxer should be forced.
714 * May be NULL.
715 * @return DEMUXER_TYPE_xxx, -1 if error or not found
716 */
717 int get_demuxer_type_from_name(char *demuxer_name, int *force)
718 {
719 int i;
720 long type_int;
721 char *endptr;
722
723 if (!demuxer_name || !demuxer_name[0])
724 return DEMUXER_TYPE_UNKNOWN;
725 if (force)
726 *force = demuxer_name[0] == '+';
727 if (demuxer_name[0] == '+')
728 demuxer_name = &demuxer_name[1];
729 for (i = 0; demuxer_list[i]; i++) {
730 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Can't select special demuxers from commandline
731 continue;
732 if (strcmp(demuxer_name, demuxer_list[i]->name) == 0)
733 return demuxer_list[i]->type;
734 }
735
736 // No match found, try to parse name as an integer (demuxer number)
737 type_int = strtol(demuxer_name, &endptr, 0);
738 if (*endptr) // Conversion failed
739 return -1;
740 if ((type_int > 0) && (type_int <= DEMUXER_TYPE_MAX))
741 return (int) type_int;
742
743 return -1;
744 }
745
746 int extension_parsing = 1; // 0=off 1=mixed (used only for unstable formats)
747
748 int correct_pts = 0;
749 int user_correct_pts = -1;
750
751 /*
752 NOTE : Several demuxers may be opened at the same time so
753 demuxers should NEVER rely on an external var to enable them
754 self. If a demuxer can't do any auto-detection it should only use
755 file_format. The user can explicitly set file_format with the -demuxer
756 option so there is really no need for another extra var.
757 For convenience an option can be added to set file_format directly
758 to the right type (ex: rawaudio,rawvideo).
759 Also the stream can override the file_format so a demuxer which rely
760 on a special stream type can set file_format at the stream level
761 (ex: tv,mf).
762 */
763
764 static demuxer_t *demux_open_stream(stream_t *stream, int file_format,
765 int force, int audio_id, int video_id,
766 int dvdsub_id, char *filename)
767 {
768 demuxer_t *demuxer = NULL;
769
770 sh_video_t *sh_video = NULL;
771
772 const demuxer_desc_t *demuxer_desc;
773 int fformat = 0;
774 int i;
775
776 // If somebody requested a demuxer check it
777 if (file_format) {
778 if ((demuxer_desc = get_demuxer_desc_from_type(file_format))) {
779 demuxer = new_demuxer(stream, demuxer_desc->type, audio_id,
780 video_id, dvdsub_id, filename);
781 if (demuxer_desc->check_file)
782 fformat = demuxer_desc->check_file(demuxer);
783 if (force || !demuxer_desc->check_file)
784 fformat = demuxer_desc->type;
785 if (fformat != 0) {
786 if (fformat == demuxer_desc->type) {
787 demuxer_t *demux2 = demuxer;
788 // Move messages to demuxer detection code?
789 mp_msg(MSGT_DEMUXER, MSGL_INFO,
790 MSGTR_Detected_XXX_FileFormat,
791 demuxer_desc->shortdesc);
792 file_format = fformat;
793 if (!demuxer->desc->open
794 || (demux2 = demuxer->desc->open(demuxer))) {
795 demuxer = demux2;
796 goto dmx_open;
797 }
798 } else {
799 // Format changed after check, recurse
800 free_demuxer(demuxer);
801 return demux_open_stream(stream, fformat, force, audio_id,
802 video_id, dvdsub_id, filename);
803 }
804 }
805 // Check failed for forced demuxer, quit
806 free_demuxer(demuxer);
807 return NULL;
808 }
809 }
810 // Test demuxers with safe file checks
811 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
812 if (demuxer_desc->safe_check) {
813 demuxer = new_demuxer(stream, demuxer_desc->type, audio_id,
814 video_id, dvdsub_id, filename);
815 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
816 if (fformat == demuxer_desc->type) {
817 demuxer_t *demux2 = demuxer;
818 mp_msg(MSGT_DEMUXER, MSGL_INFO,
819 MSGTR_Detected_XXX_FileFormat,
820 demuxer_desc->shortdesc);
821 file_format = fformat;
822 if (!demuxer->desc->open
823 || (demux2 = demuxer->desc->open(demuxer))) {
824 demuxer = demux2;
825 goto dmx_open;
826 }
827 } else {
828 if (fformat == DEMUXER_TYPE_PLAYLIST)
829 return demuxer; // handled in mplayer.c
830 // Format changed after check, recurse
831 free_demuxer(demuxer);
832 demuxer = demux_open_stream(stream, fformat, force,
833 audio_id, video_id,
834 dvdsub_id, filename);
835 if (demuxer)
836 return demuxer; // done!
837 file_format = DEMUXER_TYPE_UNKNOWN;
838 }
839 }
840 free_demuxer(demuxer);
841 demuxer = NULL;
842 }
843 }
844
845 // If no forced demuxer perform file extension based detection
846 // Ok. We're over the stable detectable fileformats, the next ones are
847 // a bit fuzzy. So by default (extension_parsing==1) try extension-based
848 // detection first:
849 if (file_format == DEMUXER_TYPE_UNKNOWN && filename
850 && extension_parsing == 1) {
851 file_format = demuxer_type_by_filename(filename);
852 if (file_format != DEMUXER_TYPE_UNKNOWN) {
853 // we like recursion :)
854 demuxer = demux_open_stream(stream, file_format, force, audio_id,
855 video_id, dvdsub_id, filename);
856 if (demuxer)
857 return demuxer; // done!
858 file_format = DEMUXER_TYPE_UNKNOWN; // continue fuzzy guessing...
859 mp_msg(MSGT_DEMUXER, MSGL_V,
860 "demuxer: continue fuzzy content-based format guessing...\n");
861 }
862 }
863 // Try detection for all other demuxers
864 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
865 if (!demuxer_desc->safe_check && demuxer_desc->check_file) {
866 demuxer = new_demuxer(stream, demuxer_desc->type, audio_id,
867 video_id, dvdsub_id, filename);
868 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
869 if (fformat == demuxer_desc->type) {
870 demuxer_t *demux2 = demuxer;
871 mp_msg(MSGT_DEMUXER, MSGL_INFO,
872 MSGTR_Detected_XXX_FileFormat,
873 demuxer_desc->shortdesc);
874 file_format = fformat;
875 if (!demuxer->desc->open
876 || (demux2 = demuxer->desc->open(demuxer))) {
877 demuxer = demux2;
878 goto dmx_open;
879 }
880 } else {
881 if (fformat == DEMUXER_TYPE_PLAYLIST)
882 return demuxer; // handled in mplayer.c
883 // Format changed after check, recurse
884 free_demuxer(demuxer);
885 demuxer = demux_open_stream(stream, fformat, force,
886 audio_id, video_id,
887 dvdsub_id, filename);
888 if (demuxer)
889 return demuxer; // done!
890 file_format = DEMUXER_TYPE_UNKNOWN;
891 }
892 }
893 free_demuxer(demuxer);
894 demuxer = NULL;
895 }
896 }
897
898 return NULL;
899 //====== File format recognized, set up these for compatibility: =========
900 dmx_open:
901
902 demuxer->file_format = file_format;
903
904 if ((sh_video = demuxer->video->sh) && sh_video->bih) {
905 int biComp = le2me_32(sh_video->bih->biCompression);
906 mp_msg(MSGT_DEMUX, MSGL_INFO,
907 "VIDEO: [%.4s] %dx%d %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
908 (char *) &biComp, sh_video->bih->biWidth,
909 sh_video->bih->biHeight, sh_video->bih->biBitCount,
910 sh_video->fps, sh_video->i_bps * 0.008f,
911 sh_video->i_bps / 1024.0f);
912 }
913 #ifdef CONFIG_ASS
914 if (ass_enabled && ass_library) {
915 for (i = 0; i < MAX_S_STREAMS; ++i) {
916 sh_sub_t *sh = demuxer->s_streams[i];
917 if (sh && sh->type == 'a') {
918 sh->ass_track = ass_new_track(ass_library);
919 if (sh->ass_track && sh->extradata)
920 ass_process_codec_private(sh->ass_track, sh->extradata,
921 sh->extradata_len);
922 } else if (sh && sh->type != 'v')
923 sh->ass_track = ass_default_track(ass_library);
924 }
925 }
926 #endif
927 return demuxer;
928 }
929
930 char *audio_stream = NULL;
931 char *sub_stream = NULL;
932 int audio_stream_cache = 0;
933
934 char *demuxer_name = NULL; // parameter from -demuxer
935 char *audio_demuxer_name = NULL; // parameter from -audio-demuxer
936 char *sub_demuxer_name = NULL; // parameter from -sub-demuxer
937
938 extern int hr_mp3_seek;
939
940 extern float stream_cache_min_percent;
941 extern float stream_cache_seek_min_percent;
942
943 demuxer_t *demux_open(stream_t *vs, int file_format, int audio_id,
944 int video_id, int dvdsub_id, char *filename)
945 {
946 stream_t *as = NULL, *ss = NULL;
947 demuxer_t *vd, *ad = NULL, *sd = NULL;
948 demuxer_t *res;
949 int afmt = DEMUXER_TYPE_UNKNOWN, sfmt = DEMUXER_TYPE_UNKNOWN;
950 int demuxer_type;
951 int audio_demuxer_type = 0, sub_demuxer_type = 0;
952 int demuxer_force = 0, audio_demuxer_force = 0, sub_demuxer_force = 0;
953
954 if ((demuxer_type =
955 get_demuxer_type_from_name(demuxer_name, &demuxer_force)) < 0) {
956 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-demuxer %s does not exist.\n",
957 demuxer_name);
958 }
959 if ((audio_demuxer_type =
960 get_demuxer_type_from_name(audio_demuxer_name,
961 &audio_demuxer_force)) < 0) {
962 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-audio-demuxer %s does not exist.\n",
963 audio_demuxer_name);
964 }
965 if ((sub_demuxer_type =
966 get_demuxer_type_from_name(sub_demuxer_name,
967 &sub_demuxer_force)) < 0) {
968 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-sub-demuxer %s does not exist.\n",
969 sub_demuxer_name);
970 }
971
972 if (audio_stream) {
973 as = open_stream(audio_stream, 0, &afmt);
974 if (!as) {
975 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_CannotOpenAudioStream,
976 audio_stream);
977 return NULL;
978 }
979 if (audio_stream_cache) {
980 if (!stream_enable_cache
981 (as, audio_stream_cache * 1024,
982 audio_stream_cache * 1024 * (stream_cache_min_percent /
983 100.0),
984 audio_stream_cache * 1024 * (stream_cache_seek_min_percent /
985 100.0))) {
986 free_stream(as);
987 mp_msg(MSGT_DEMUXER, MSGL_ERR,
988 "Can't enable audio stream cache\n");
989 return NULL;
990 }
991 }
992 }
993 if (sub_stream) {
994 ss = open_stream(sub_stream, 0, &sfmt);
995 if (!ss) {
996 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_CannotOpenSubtitlesStream,
997 sub_stream);
998 return NULL;
999 }
1000 }
1001
1002 vd = demux_open_stream(vs, demuxer_type ? demuxer_type : file_format,
1003 demuxer_force, audio_stream ? -2 : audio_id,
1004 video_id, sub_stream ? -2 : dvdsub_id, filename);
1005 if (!vd) {
1006 if (as)
1007 free_stream(as);
1008 if (ss)
1009 free_stream(ss);
1010 return NULL;
1011 }
1012 if (as) {
1013 ad = demux_open_stream(as,
1014 audio_demuxer_type ? audio_demuxer_type : afmt,
1015 audio_demuxer_force, audio_id, -2, -2,
1016 audio_stream);
1017 if (!ad) {
1018 mp_msg(MSGT_DEMUXER, MSGL_WARN, MSGTR_OpeningAudioDemuxerFailed,
1019 audio_stream);
1020 free_stream(as);
1021 } else if (ad->audio->sh
1022 && ((sh_audio_t *) ad->audio->sh)->format == 0x55) // MP3
1023 hr_mp3_seek = 1; // Enable high res seeking
1024 }
1025 if (ss) {
1026 sd = demux_open_stream(ss, sub_demuxer_type ? sub_demuxer_type : sfmt,
1027 sub_demuxer_force, -2, -2, dvdsub_id,
1028 sub_stream);
1029 if (!sd) {
1030 mp_msg(MSGT_DEMUXER, MSGL_WARN,
1031 MSGTR_OpeningSubtitlesDemuxerFailed, sub_stream);
1032 free_stream(ss);
1033 }
1034 }
1035
1036 if (ad && sd)
1037 res = new_demuxers_demuxer(vd, ad, sd);
1038 else if (ad)
1039 res = new_demuxers_demuxer(vd, ad, vd);
1040 else if (sd)
1041 res = new_demuxers_demuxer(vd, vd, sd);
1042 else
1043 res = vd;
1044
1045 correct_pts = user_correct_pts;
1046 if (correct_pts < 0)
1047 correct_pts = demux_control(res, DEMUXER_CTRL_CORRECT_PTS, NULL)
1048 == DEMUXER_CTRL_OK;
1049 return res;
1050 }
1051
1052
1053 void demux_flush(demuxer_t *demuxer)
1054 {
1055 ds_free_packs(demuxer->video);
1056 ds_free_packs(demuxer->audio);
1057 ds_free_packs(demuxer->sub);
1058 }
1059
1060 int demux_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay,
1061 int flags)
1062 {
1063 demux_stream_t *d_audio = demuxer->audio;
1064 demux_stream_t *d_video = demuxer->video;
1065 sh_audio_t *sh_audio = d_audio->sh;
1066 sh_video_t *sh_video = d_video->sh;
1067 double tmp = 0;
1068 double pts;
1069
1070 if (!demuxer->seekable) {
1071 if (demuxer->file_format == DEMUXER_TYPE_AVI)
1072 mp_msg(MSGT_SEEK, MSGL_WARN, MSGTR_CantSeekRawAVI);
1073 #ifdef CONFIG_TV
1074 else if (demuxer->file_format == DEMUXER_TYPE_TV)
1075 mp_msg(MSGT_SEEK, MSGL_WARN, MSGTR_TVInputNotSeekable);
1076 #endif
1077 else
1078 mp_msg(MSGT_SEEK, MSGL_WARN, MSGTR_CantSeekFile);
1079 return 0;
1080 }
1081
1082 demux_flush(demuxer);
1083 // clear demux buffers:
1084 if (sh_audio)
1085 sh_audio->a_buffer_len = 0;
1086
1087 demuxer->stream->eof = 0;
1088 demuxer->video->eof = 0;
1089 demuxer->audio->eof = 0;
1090
1091 if (sh_video)
1092 sh_video->timer = 0; // !!!!!!
1093
1094 if (flags & SEEK_ABSOLUTE)
1095 pts = 0.0f;
1096 else {
1097 if (demuxer->stream_pts == MP_NOPTS_VALUE)
1098 goto dmx_seek;
1099 pts = demuxer->stream_pts;
1100 }
1101
1102 if (flags & SEEK_FACTOR) {
1103 if (stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH, &tmp)
1104 == STREAM_UNSUPPORTED)
1105 goto dmx_seek;
1106 pts += tmp * rel_seek_secs;
1107 } else
1108 pts += rel_seek_secs;
1109
1110 if (stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, &pts) !=
1111 STREAM_UNSUPPORTED) {
1112 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1113 return 1;
1114 }
1115
1116 dmx_seek:
1117 if (demuxer->desc->seek)
1118 demuxer->desc->seek(demuxer, rel_seek_secs, audio_delay, flags);
1119
1120 if (sh_audio)
1121 resync_audio_stream(sh_audio);
1122
1123 return 1;
1124 }
1125
1126 int demux_info_add(demuxer_t *demuxer, const char *opt, const char *param)
1127 {
1128 char **info = demuxer->info;
1129 int n = 0;
1130
1131
1132 for (n = 0; info && info[2 * n] != NULL; n++) {
1133 if (!strcasecmp(opt, info[2 * n])) {
1134 if (!strcmp(param, info[2 * n + 1])) {
1135 mp_msg(MSGT_DEMUX, MSGL_V, "Demuxer info %s set to unchanged value %s\n", opt, param);
1136 return 0;
1137 }
1138 mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_DemuxerInfoChanged, opt,
1139 param);
1140 free(info[2 * n + 1]);
1141 info[2 * n + 1] = strdup(param);
1142 return 0;
1143 }
1144 }
1145
1146 info = demuxer->info = (char **) realloc(info,
1147 (2 * (n + 2)) * sizeof(char *));
1148 info[2 * n] = strdup(opt);
1149 info[2 * n + 1] = strdup(param);
1150 memset(&info[2 * (n + 1)], 0, 2 * sizeof(char *));
1151
1152 return 1;
1153 }
1154
1155 int demux_info_print(demuxer_t *demuxer)
1156 {
1157 char **info = demuxer->info;
1158 int n;
1159
1160 if (!info)
1161 return 0;
1162
1163 mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_ClipInfo);
1164 for (n = 0; info[2 * n] != NULL; n++) {
1165 mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n", info[2 * n],
1166 info[2 * n + 1]);
1167 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n,
1168 info[2 * n]);
1169 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n,
1170 info[2 * n + 1]);
1171 }
1172 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
1173
1174 return 0;
1175 }
1176
1177 char *demux_info_get(demuxer_t *demuxer, const char *opt)
1178 {
1179 int i;
1180 char **info = demuxer->info;
1181
1182 for (i = 0; info && info[2 * i] != NULL; i++) {
1183 if (!strcasecmp(opt, info[2 * i]))
1184 return info[2 * i + 1];
1185 }
1186
1187 return NULL;
1188 }
1189
1190 int demux_control(demuxer_t *demuxer, int cmd, void *arg)
1191 {
1192
1193 if (demuxer->desc->control)
1194 return demuxer->desc->control(demuxer, cmd, arg);
1195
1196 return DEMUXER_CTRL_NOTIMPL;
1197 }
1198
1199
1200
1201 double demuxer_get_time_length(demuxer_t *demuxer)
1202 {
1203 double get_time_ans;
1204 sh_video_t *sh_video = demuxer->video->sh;
1205 sh_audio_t *sh_audio = demuxer->audio->sh;
1206 // <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW
1207 if (demux_control
1208 (demuxer, DEMUXER_CTRL_GET_TIME_LENGTH, (void *) &get_time_ans) <= 0) {
1209 if (sh_video && sh_video->i_bps && sh_audio && sh_audio->i_bps)
1210 get_time_ans = (double) (demuxer->movi_end -
1211 demuxer->movi_start) / (sh_video->i_bps +
1212 sh_audio->i_bps);
1213 else if (sh_video && sh_video->i_bps)
1214 get_time_ans = (double) (demuxer->movi_end -
1215 demuxer->movi_start) / sh_video->i_bps;
1216 else if (sh_audio && sh_audio->i_bps)
1217 get_time_ans = (double) (demuxer->movi_end -
1218 demuxer->movi_start) / sh_audio->i_bps;
1219 else
1220 get_time_ans = 0;
1221 }
1222 return get_time_ans;
1223 }
1224
1225 /**
1226 * \brief demuxer_get_current_time() returns the time of the current play in three possible ways:
1227 * either when the stream reader satisfies STREAM_CTRL_GET_CURRENT_TIME (e.g. dvd)
1228 * or using sh_video->pts when the former method fails
1229 * 0 otherwise
1230 * \return the current play time
1231 */
1232 int demuxer_get_current_time(demuxer_t *demuxer)
1233 {
1234 double get_time_ans = 0;
1235 sh_video_t *sh_video = demuxer->video->sh;
1236 if (demuxer->stream_pts != MP_NOPTS_VALUE)
1237 get_time_ans = demuxer->stream_pts;
1238 else if (sh_video)
1239 get_time_ans = sh_video->pts;
1240 return (int) get_time_ans;
1241 }
1242
1243 int demuxer_get_percent_pos(demuxer_t *demuxer)
1244 {
1245 int ans = 0;
1246 int res = demux_control(demuxer, DEMUXER_CTRL_GET_PERCENT_POS, &ans);
1247 int len = (demuxer->movi_end - demuxer->movi_start) / 100;
1248 if (res <= 0) {
1249 off_t pos = demuxer->filepos > 0 ? demuxer->filepos : stream_tell(demuxer->stream);
1250 if (len > 0)
1251 ans = (pos - demuxer->movi_start) / len;
1252 else
1253 ans = 0;
1254 }
1255 if (ans < 0)
1256 ans = 0;
1257 if (ans > 100)
1258 ans = 100;
1259 return ans;
1260 }
1261
1262 int demuxer_switch_audio(demuxer_t *demuxer, int index)
1263 {
1264 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &index);
1265 if (res == DEMUXER_CTRL_NOTIMPL)
1266 index = demuxer->audio->id;
1267 if (demuxer->audio->id >= 0)
1268 demuxer->audio->sh = demuxer->a_streams[demuxer->audio->id];
1269 else
1270 demuxer->audio->sh = NULL;
1271 return index;
1272 }
1273
1274 int demuxer_switch_video(demuxer_t *demuxer, int index)
1275 {
1276 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_VIDEO, &index);
1277 if (res == DEMUXER_CTRL_NOTIMPL)
1278 index = demuxer->video->id;
1279 if (demuxer->video->id >= 0)
1280 demuxer->video->sh = demuxer->v_streams[demuxer->video->id];
1281 else
1282 demuxer->video->sh = NULL;
1283 return index;
1284 }
1285
1286 int demuxer_add_attachment(demuxer_t *demuxer, const char *name,
1287 const char *type, const void *data, size_t size)
1288 {
1289 if (!(demuxer->num_attachments & 31))
1290 demuxer->attachments = realloc(demuxer->attachments,
1291 (demuxer->num_attachments + 32) * sizeof(demux_attachment_t));
1292
1293 demuxer->attachments[demuxer->num_attachments].name = strdup(name);
1294 demuxer->attachments[demuxer->num_attachments].type = strdup(type);
1295 demuxer->attachments[demuxer->num_attachments].data = malloc(size);
1296 memcpy(demuxer->attachments[demuxer->num_attachments].data, data, size);
1297 demuxer->attachments[demuxer->num_attachments].data_size = size;
1298
1299 return demuxer->num_attachments++;
1300 }
1301
1302 int demuxer_add_chapter(demuxer_t *demuxer, const char *name, uint64_t start,
1303 uint64_t end)
1304 {
1305 if (demuxer->chapters == NULL)
1306 demuxer->chapters = malloc(32 * sizeof(*demuxer->chapters));
1307 else if (!(demuxer->num_chapters % 32))
1308 demuxer->chapters = realloc(demuxer->chapters,
1309 (demuxer->num_chapters + 32) *
1310 sizeof(*demuxer->chapters));
1311
1312 demuxer->chapters[demuxer->num_chapters].start = start;
1313 demuxer->chapters[demuxer->num_chapters].end = end;
1314 demuxer->chapters[demuxer->num_chapters].name = strdup(name ? name : MSGTR_Unknown);
1315
1316 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_ID=%d\n", demuxer->num_chapters);
1317 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_START=%"PRIu64"\n", demuxer->num_chapters, start);
1318 if (end)
1319 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_END=%"PRIu64"\n", demuxer->num_chapters, end);
1320 if (name)
1321 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_NAME=%s\n", demuxer->num_chapters, name);
1322
1323 return demuxer->num_chapters++;
1324 }
1325
1326 /**
1327 * \brief demuxer_seek_chapter() seeks to a chapter in two possible ways:
1328 * either using the demuxer->chapters structure set by the demuxer
1329 * or asking help to the stream layer (e.g. dvd)
1330 * \param chapter - chapter number wished - 0-based
1331 * \param mode 0: relative to current main pts, 1: absolute
1332 * \param seek_pts set by the function to the pts to seek to (if demuxer->chapters is set)
1333 * \param num_chapters number of chapters present (set by this function is param is not null)
1334 * \param chapter_name name of chapter found (set by this function is param is not null)
1335 * \return -1 on error, current chapter if successful
1336 */
1337
1338 int demuxer_seek_chapter(demuxer_t *demuxer, int chapter, int mode,
1339 float *seek_pts, int *num_chapters,
1340 char **chapter_name)
1341 {
1342 int ris;
1343 int current, total;
1344 sh_video_t *sh_video = demuxer->video->sh;
1345 sh_audio_t *sh_audio = demuxer->audio->sh;
1346
1347 if (!demuxer->num_chapters || !demuxer->chapters) {
1348 if (!mode) {
1349 ris = stream_control(demuxer->stream,
1350 STREAM_CTRL_GET_CURRENT_CHAPTER, &current);
1351 if (ris == STREAM_UNSUPPORTED)
1352 return -1;
1353 chapter += current;
1354 }
1355
1356 demux_flush(demuxer);
1357
1358 ris = stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_CHAPTER,
1359 &chapter);
1360 if (ris != STREAM_UNSUPPORTED)
1361 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1362 if (sh_video) {
1363 ds_fill_buffer(demuxer->video);
1364 resync_video_stream(sh_video);
1365 }
1366
1367 if (sh_audio) {
1368 ds_fill_buffer(demuxer->audio);
1369 resync_audio_stream(sh_audio);
1370 }
1371 // exit status may be ok, but main() doesn't have to seek itself
1372 // (because e.g. dvds depend on sectors, not on pts)
1373 *seek_pts = -1.0;
1374
1375 if (num_chapters) {
1376 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1377 num_chapters) == STREAM_UNSUPPORTED)
1378 *num_chapters = 0;
1379 }
1380
1381 if (chapter_name) {
1382 *chapter_name = NULL;
1383 if (num_chapters && *num_chapters) {
1384 char *tmp = malloc(16);
1385 if (tmp) {
1386 sprintf(tmp, " of %3d", *num_chapters);
1387 *chapter_name = tmp;
1388 }
1389 }
1390 }
1391
1392 return ris != STREAM_UNSUPPORTED ? chapter : -1;
1393 } else { // chapters structure is set in the demuxer
1394 total = demuxer->num_chapters;
1395
1396 if (mode == 1) //absolute seeking
1397 current = chapter;
1398 else { //relative seeking
1399 uint64_t now;
1400 now = (sh_video ? sh_video->pts : (sh_audio ? sh_audio->pts : 0.))
1401 * 1000 + .5;
1402
1403 for (current = total - 1; current >= 0; --current) {
1404 demux_chapter_t *chapter = demuxer->chapters + current;
1405 if (chapter->start <= now)
1406 break;
1407 }
1408 current += chapter;
1409 }
1410
1411 if (current >= total)
1412 return -1;
1413 if (current < 0)
1414 current = 0;
1415
1416 *seek_pts = demuxer->chapters[current].start / 1000.0;
1417
1418 if (num_chapters)
1419 *num_chapters = demuxer->num_chapters;
1420
1421 if (chapter_name) {
1422 if (demuxer->chapters[current].name)
1423 *chapter_name = strdup(demuxer->chapters[current].name);
1424 else
1425 *chapter_name = NULL;
1426 }
1427
1428 return current;
1429 }
1430 }
1431
1432 int demuxer_get_current_chapter(demuxer_t *demuxer)
1433 {
1434 int chapter = -1;
1435 if (!demuxer->num_chapters || !demuxer->chapters) {
1436 if (stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_CHAPTER,
1437 &chapter) == STREAM_UNSUPPORTED)
1438 chapter = -1;
1439 } else {
1440 sh_video_t *sh_video = demuxer->video->sh;
1441 sh_audio_t *sh_audio = demuxer->audio->sh;
1442 uint64_t now;
1443 now = (sh_video ? sh_video->pts : (sh_audio ? sh_audio->pts : 0))
1444 * 1000 + 0.5;
1445 for (chapter = demuxer->num_chapters - 1; chapter >= 0; --chapter) {
1446 if (demuxer->chapters[chapter].start <= now)
1447 break;
1448 }
1449 }
1450 return chapter;
1451 }
1452
1453 char *demuxer_chapter_name(demuxer_t *demuxer, int chapter)
1454 {
1455 if (demuxer->num_chapters && demuxer->chapters) {
1456 if (chapter >= 0 && chapter < demuxer->num_chapters
1457 && demuxer->chapters[chapter].name)
1458 return strdup(demuxer->chapters[chapter].name);
1459 }
1460 return NULL;
1461 }
1462
1463 char *demuxer_chapter_display_name(demuxer_t *demuxer, int chapter)
1464 {
1465 char *chapter_name = demuxer_chapter_name(demuxer, chapter);
1466 if (chapter_name) {
1467 char *tmp = malloc(strlen(chapter_name) + 14);
1468 snprintf(tmp, 63, "(%d) %s", chapter + 1, chapter_name);
1469 free(chapter_name);
1470 return tmp;
1471 } else {
1472 int chapter_num = demuxer_chapter_count(demuxer);
1473 char tmp[30];
1474 if (chapter_num <= 0)
1475 sprintf(tmp, "(%d)", chapter + 1);
1476 else
1477 sprintf(tmp, "(%d) of %d", chapter + 1, chapter_num);
1478 return strdup(tmp);
1479 }
1480 }
1481
1482 float demuxer_chapter_time(demuxer_t *demuxer, int chapter, float *end)
1483 {
1484 if (demuxer->num_chapters && demuxer->chapters && chapter >= 0
1485 && chapter < demuxer->num_chapters) {
1486 if (end)
1487 *end = demuxer->chapters[chapter].end / 1000.0;
1488 return demuxer->chapters[chapter].start / 1000.0;
1489 }
1490 return -1.0;
1491 }
1492
1493 int demuxer_chapter_count(demuxer_t *demuxer)
1494 {
1495 if (!demuxer->num_chapters || !demuxer->chapters) {
1496 int num_chapters = 0;
1497 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1498 &num_chapters) == STREAM_UNSUPPORTED)
1499 num_chapters = 0;
1500 return num_chapters;
1501 } else
1502 return demuxer->num_chapters;
1503 }
1504
1505 int demuxer_angles_count(demuxer_t *demuxer)
1506 {
1507 int ris, angles = -1;
1508
1509 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_ANGLES, &angles);
1510 if (ris == STREAM_UNSUPPORTED)
1511 return -1;
1512 return angles;
1513 }
1514
1515 int demuxer_get_current_angle(demuxer_t *demuxer)
1516 {
1517 int ris, curr_angle = -1;
1518 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_ANGLE, &curr_angle);
1519 if (ris == STREAM_UNSUPPORTED)
1520 return -1;
1521 return curr_angle;
1522 }
1523
1524
1525 int demuxer_set_angle(demuxer_t *demuxer, int angle)
1526 {
1527 int ris, angles = -1;
1528 sh_video_t *sh_video = demuxer->video->sh;
1529 sh_audio_t *sh_audio = demuxer->audio->sh;
1530
1531 angles = demuxer_angles_count(demuxer);
1532 if ((angles < 1) || (angle > angles))
1533 return -1;
1534
1535 demux_flush(demuxer);
1536
1537 ris = stream_control(demuxer->stream, STREAM_CTRL_SET_ANGLE, &angle);
1538 if (ris == STREAM_UNSUPPORTED)
1539 return -1;
1540
1541 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1542 if (sh_video) {
1543 ds_fill_buffer(demuxer->video);
1544 resync_video_stream(sh_video);
1545 }
1546
1547 if (sh_audio) {
1548 ds_fill_buffer(demuxer->audio);
1549 resync_audio_stream(sh_audio);
1550 }
1551
1552 return angle;
1553 }
1554
1555 int demuxer_audio_track_by_lang(demuxer_t *d, char *lang)
1556 {
1557 int i, len;
1558 lang += strspn(lang, ",");
1559 while ((len = strcspn(lang, ",")) > 0) {
1560 for (i = 0; i < MAX_A_STREAMS; ++i) {
1561 sh_audio_t *sh = d->a_streams[i];
1562 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1563 return sh->aid;
1564 }
1565 lang += len;
1566 lang += strspn(lang, ",");
1567 }
1568 return -1;
1569 }
1570
1571 int demuxer_sub_track_by_lang(demuxer_t *d, char *lang)
1572 {
1573 int i, len;
1574 lang += strspn(lang, ",");
1575 while ((len = strcspn(lang, ",")) > 0) {
1576 for (i = 0; i < MAX_S_STREAMS; ++i) {
1577 sh_sub_t *sh = d->s_streams[i];
1578 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1579 return sh->sid;
1580 }
1581 lang += len;
1582 lang += strspn(lang, ",");
1583 }
1584 return -1;
1585 }
1586
1587 int demuxer_default_audio_track(demuxer_t *d)
1588 {
1589 int i;
1590 for (i = 0; i < MAX_A_STREAMS; ++i) {
1591 sh_audio_t *sh = d->a_streams[i];
1592 if (sh && sh->default_track)
1593 return sh->aid;
1594 }
1595 for (i = 0; i < MAX_A_STREAMS; ++i) {
1596 sh_audio_t *sh = d->a_streams[i];
1597 if (sh)
1598 return sh->aid;
1599 }
1600 return -1;
1601 }
1602
1603 int demuxer_default_sub_track(demuxer_t *d)
1604 {
1605 int i;
1606 for (i = 0; i < MAX_S_STREAMS; ++i) {
1607 sh_sub_t *sh = d->s_streams[i];
1608 if (sh && sh->default_track)
1609 return sh->sid;
1610 }
1611 return -1;
1612 }
mplayer with SMedia Glamo drivers