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sync with en/mplayer.1 r28991
[mplayer/glamo.git] / libmpdemux / demuxer.c
blobbfe321b37dcb355799b8d5d1aa5724c95c5eeb42
1 //=================== DEMUXER v2.5 =========================
2
3 #include <stdio.h>
4 #include <stdlib.h>
5 #include <string.h>
6 #include <unistd.h>
7
8 #include <sys/types.h>
9 #include <sys/stat.h>
10
11 #include "config.h"
12 #include "mp_msg.h"
13 #include "help_mp.h"
14 #include "m_config.h"
15
16 #include "libvo/fastmemcpy.h"
17
18 #include "stream/stream.h"
19 #include "demuxer.h"
20 #include "stheader.h"
21 #include "mf.h"
22
23 #include "libaf/af_format.h"
24
25 #ifdef CONFIG_ASS
26 #include "libass/ass.h"
27 #include "libass/ass_mp.h"
28 #endif
29
30 #ifdef CONFIG_LIBAVCODEC
31 #include "libavcodec/avcodec.h"
32 #if MP_INPUT_BUFFER_PADDING_SIZE < FF_INPUT_BUFFER_PADDING_SIZE
33 #error MP_INPUT_BUFFER_PADDING_SIZE is too small!
34 #endif
35 #endif
36
37 void resync_video_stream(sh_video_t *sh_video);
38 void resync_audio_stream(sh_audio_t *sh_audio);
39
40 // Demuxer list
41 extern const demuxer_desc_t demuxer_desc_rawaudio;
42 extern const demuxer_desc_t demuxer_desc_rawvideo;
43 extern const demuxer_desc_t demuxer_desc_tv;
44 extern const demuxer_desc_t demuxer_desc_mf;
45 extern const demuxer_desc_t demuxer_desc_avi;
46 extern const demuxer_desc_t demuxer_desc_y4m;
47 extern const demuxer_desc_t demuxer_desc_asf;
48 extern const demuxer_desc_t demuxer_desc_real;
49 extern const demuxer_desc_t demuxer_desc_smjpeg;
50 extern const demuxer_desc_t demuxer_desc_matroska;
51 extern const demuxer_desc_t demuxer_desc_realaudio;
52 extern const demuxer_desc_t demuxer_desc_vqf;
53 extern const demuxer_desc_t demuxer_desc_mov;
54 extern const demuxer_desc_t demuxer_desc_vivo;
55 extern const demuxer_desc_t demuxer_desc_fli;
56 extern const demuxer_desc_t demuxer_desc_film;
57 extern const demuxer_desc_t demuxer_desc_roq;
58 extern const demuxer_desc_t demuxer_desc_gif;
59 extern const demuxer_desc_t demuxer_desc_ogg;
60 extern const demuxer_desc_t demuxer_desc_avs;
61 extern const demuxer_desc_t demuxer_desc_pva;
62 extern const demuxer_desc_t demuxer_desc_nsv;
63 extern const demuxer_desc_t demuxer_desc_mpeg_ts;
64 extern const demuxer_desc_t demuxer_desc_lmlm4;
65 extern const demuxer_desc_t demuxer_desc_mpeg_ps;
66 extern const demuxer_desc_t demuxer_desc_mpeg_pes;
67 extern const demuxer_desc_t demuxer_desc_mpeg_es;
68 extern const demuxer_desc_t demuxer_desc_mpeg_gxf;
69 extern const demuxer_desc_t demuxer_desc_mpeg4_es;
70 extern const demuxer_desc_t demuxer_desc_h264_es;
71 extern const demuxer_desc_t demuxer_desc_rawdv;
72 extern const demuxer_desc_t demuxer_desc_mpc;
73 extern const demuxer_desc_t demuxer_desc_audio;
74 extern const demuxer_desc_t demuxer_desc_xmms;
75 extern const demuxer_desc_t demuxer_desc_mpeg_ty;
76 extern const demuxer_desc_t demuxer_desc_rtp;
77 extern const demuxer_desc_t demuxer_desc_rtp_nemesi;
78 extern const demuxer_desc_t demuxer_desc_lavf;
79 extern const demuxer_desc_t demuxer_desc_lavf_preferred;
80 extern const demuxer_desc_t demuxer_desc_aac;
81 extern const demuxer_desc_t demuxer_desc_nut;
82 extern const demuxer_desc_t demuxer_desc_mng;
83
84 /* Please do not add any new demuxers here. If you want to implement a new
85 * demuxer, add it to libavformat, except for wrappers around external
86 * libraries and demuxers requiring binary support. */
87
88 const demuxer_desc_t *const demuxer_list[] = {
89 &demuxer_desc_rawaudio,
90 &demuxer_desc_rawvideo,
91 #ifdef CONFIG_TV
92 &demuxer_desc_tv,
93 #endif
94 &demuxer_desc_mf,
95 #ifdef CONFIG_LIBAVFORMAT
96 &demuxer_desc_lavf_preferred,
97 #endif
98 &demuxer_desc_avi,
99 &demuxer_desc_y4m,
100 &demuxer_desc_asf,
101 &demuxer_desc_nsv,
102 &demuxer_desc_real,
103 &demuxer_desc_smjpeg,
104 &demuxer_desc_matroska,
105 &demuxer_desc_realaudio,
106 &demuxer_desc_vqf,
107 &demuxer_desc_mov,
108 &demuxer_desc_vivo,
109 &demuxer_desc_fli,
110 &demuxer_desc_film,
111 &demuxer_desc_roq,
112 #ifdef CONFIG_GIF
113 &demuxer_desc_gif,
114 #endif
115 #ifdef CONFIG_OGGVORBIS
116 &demuxer_desc_ogg,
117 #endif
118 #ifdef CONFIG_WIN32DLL
119 &demuxer_desc_avs,
120 #endif
121 &demuxer_desc_pva,
122 &demuxer_desc_mpeg_ts,
123 &demuxer_desc_lmlm4,
124 &demuxer_desc_mpeg_ps,
125 &demuxer_desc_mpeg_pes,
126 &demuxer_desc_mpeg_es,
127 &demuxer_desc_mpeg_gxf,
128 &demuxer_desc_mpeg4_es,
129 &demuxer_desc_h264_es,
130 &demuxer_desc_audio,
131 &demuxer_desc_mpeg_ty,
132 #ifdef CONFIG_LIVE555
133 &demuxer_desc_rtp,
134 #endif
135 #ifdef CONFIG_LIBNEMESI
136 &demuxer_desc_rtp_nemesi,
137 #endif
138 #ifdef CONFIG_LIBAVFORMAT
139 &demuxer_desc_lavf,
140 #endif
141 #ifdef CONFIG_MUSEPACK
142 &demuxer_desc_mpc,
143 #endif
144 #ifdef CONFIG_LIBDV095
145 &demuxer_desc_rawdv,
146 #endif
147 &demuxer_desc_aac,
148 #ifdef CONFIG_LIBNUT
149 &demuxer_desc_nut,
150 #endif
151 #ifdef CONFIG_XMMS
152 &demuxer_desc_xmms,
153 #endif
154 #ifdef CONFIG_MNG
155 &demuxer_desc_mng,
156 #endif
157 /* Please do not add any new demuxers here. If you want to implement a new
158 * demuxer, add it to libavformat, except for wrappers around external
159 * libraries and demuxers requiring binary support. */
160 NULL
161 };
162
163 void free_demuxer_stream(demux_stream_t *ds)
164 {
165 ds_free_packs(ds);
166 free(ds);
167 }
168
169 demux_stream_t *new_demuxer_stream(struct demuxer_st *demuxer, int id)
170 {
171 demux_stream_t *ds = malloc(sizeof(demux_stream_t));
172 ds->buffer_pos = ds->buffer_size = 0;
173 ds->buffer = NULL;
174 ds->pts = 0;
175 ds->pts_bytes = 0;
176 ds->eof = 0;
177 ds->pos = 0;
178 ds->dpos = 0;
179 ds->pack_no = 0;
180
181 ds->packs = 0;
182 ds->bytes = 0;
183 ds->first = ds->last = ds->current = NULL;
184 ds->id = id;
185 ds->demuxer = demuxer;
186
187 ds->asf_seq = -1;
188 ds->asf_packet = NULL;
189
190 ds->ss_mul = ds->ss_div = 0;
191
192 ds->sh = NULL;
193 return ds;
194 }
195
196
197 /**
198 * Get demuxer description structure for a given demuxer type
199 *
200 * @param file_format type of the demuxer
201 * @return structure for the demuxer, NULL if not found
202 */
203 static const demuxer_desc_t *get_demuxer_desc_from_type(int file_format)
204 {
205 int i;
206
207 for (i = 0; demuxer_list[i]; i++)
208 if (file_format == demuxer_list[i]->type)
209 return demuxer_list[i];
210
211 return NULL;
212 }
213
214
215 demuxer_t *new_demuxer(stream_t *stream, int type, int a_id, int v_id,
216 int s_id, char *filename)
217 {
218 demuxer_t *d = malloc(sizeof(demuxer_t));
219 memset(d, 0, sizeof(demuxer_t));
220 d->stream = stream;
221 d->stream_pts = MP_NOPTS_VALUE;
222 d->reference_clock = MP_NOPTS_VALUE;
223 d->movi_start = stream->start_pos;
224 d->movi_end = stream->end_pos;
225 d->seekable = 1;
226 d->synced = 0;
227 d->filepos = 0;
228 d->audio = new_demuxer_stream(d, a_id);
229 d->video = new_demuxer_stream(d, v_id);
230 d->sub = new_demuxer_stream(d, s_id);
231 d->type = type;
232 if (type)
233 if (!(d->desc = get_demuxer_desc_from_type(type)))
234 mp_msg(MSGT_DEMUXER, MSGL_ERR,
235 "BUG! Invalid demuxer type in new_demuxer(), "
236 "big troubles ahead.");
237 if (filename) // Filename hack for avs_check_file
238 d->filename = strdup(filename);
239 stream_reset(stream);
240 stream_seek(stream, stream->start_pos);
241 return d;
242 }
243
244 extern int dvdsub_id;
245
246 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid)
247 {
248 if (id > MAX_S_STREAMS - 1 || id < 0) {
249 mp_msg(MSGT_DEMUXER, MSGL_WARN,
250 "Requested sub stream id overflow (%d > %d)\n", id,
251 MAX_S_STREAMS);
252 return NULL;
253 }
254 if (demuxer->s_streams[id])
255 mp_msg(MSGT_DEMUXER, MSGL_WARN, "Sub stream %i redefined\n", id);
256 else {
257 sh_sub_t *sh = calloc(1, sizeof(sh_sub_t));
258 demuxer->s_streams[id] = sh;
259 sh->sid = sid;
260 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sid);
261 }
262 return demuxer->s_streams[id];
263 }
264
265 void free_sh_sub(sh_sub_t *sh)
266 {
267 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_sub at %p\n", sh);
268 free(sh->extradata);
269 #ifdef CONFIG_ASS
270 if (sh->ass_track)
271 ass_free_track(sh->ass_track);
272 #endif
273 free(sh->lang);
274 free(sh);
275 }
276
277 sh_audio_t *new_sh_audio_aid(demuxer_t *demuxer, int id, int aid)
278 {
279 if (id > MAX_A_STREAMS - 1 || id < 0) {
280 mp_msg(MSGT_DEMUXER, MSGL_WARN,
281 "Requested audio stream id overflow (%d > %d)\n", id,
282 MAX_A_STREAMS);
283 return NULL;
284 }
285 if (demuxer->a_streams[id])
286 mp_msg(MSGT_DEMUXER, MSGL_WARN, MSGTR_AudioStreamRedefined, id);
287 else {
288 sh_audio_t *sh = calloc(1, sizeof(sh_audio_t));
289 mp_msg(MSGT_DEMUXER, MSGL_V, MSGTR_FoundAudioStream, id);
290 demuxer->a_streams[id] = sh;
291 sh->aid = aid;
292 sh->ds = demuxer->audio;
293 // set some defaults
294 sh->samplesize = 2;
295 sh->sample_format = AF_FORMAT_S16_NE;
296 sh->audio_out_minsize = 8192; /* default size, maybe not enough for Win32/ACM */
297 sh->pts = MP_NOPTS_VALUE;
298 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", aid);
299 }
300 return demuxer->a_streams[id];
301 }
302
303 void free_sh_audio(demuxer_t *demuxer, int id)
304 {
305 sh_audio_t *sh = demuxer->a_streams[id];
306 demuxer->a_streams[id] = NULL;
307 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_audio at %p\n", sh);
308 free(sh->wf);
309 free(sh->codecdata);
310 free(sh->lang);
311 free(sh);
312 }
313
314 sh_video_t *new_sh_video_vid(demuxer_t *demuxer, int id, int vid)
315 {
316 if (id > MAX_V_STREAMS - 1 || id < 0) {
317 mp_msg(MSGT_DEMUXER, MSGL_WARN,
318 "Requested video stream id overflow (%d > %d)\n", id,
319 MAX_V_STREAMS);
320 return NULL;
321 }
322 if (demuxer->v_streams[id])
323 mp_msg(MSGT_DEMUXER, MSGL_WARN, MSGTR_VideoStreamRedefined, id);
324 else {
325 sh_video_t *sh = calloc(1, sizeof(sh_video_t));
326 mp_msg(MSGT_DEMUXER, MSGL_V, MSGTR_FoundVideoStream, id);
327 demuxer->v_streams[id] = sh;
328 sh->vid = vid;
329 sh->ds = demuxer->video;
330 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_ID=%d\n", vid);
331 }
332 return demuxer->v_streams[id];
333 }
334
335 void free_sh_video(sh_video_t *sh)
336 {
337 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_video at %p\n", sh);
338 free(sh->bih);
339 free(sh);
340 }
341
342 void free_demuxer(demuxer_t *demuxer)
343 {
344 int i;
345 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing demuxer at %p\n",
346 demuxer);
347 if (demuxer->desc->close)
348 demuxer->desc->close(demuxer);
349 // Very ugly hack to make it behave like old implementation
350 if (demuxer->desc->type == DEMUXER_TYPE_DEMUXERS)
351 goto skip_streamfree;
352 // free streams:
353 for (i = 0; i < MAX_A_STREAMS; i++)
354 if (demuxer->a_streams[i])
355 free_sh_audio(demuxer, i);
356 for (i = 0; i < MAX_V_STREAMS; i++)
357 if (demuxer->v_streams[i])
358 free_sh_video(demuxer->v_streams[i]);
359 for (i = 0; i < MAX_S_STREAMS; i++)
360 if (demuxer->s_streams[i])
361 free_sh_sub(demuxer->s_streams[i]);
362 // free demuxers:
363 free_demuxer_stream(demuxer->audio);
364 free_demuxer_stream(demuxer->video);
365 free_demuxer_stream(demuxer->sub);
366 skip_streamfree:
367 if (demuxer->info) {
368 for (i = 0; demuxer->info[i] != NULL; i++)
369 free(demuxer->info[i]);
370 free(demuxer->info);
371 }
372 free(demuxer->filename);
373 if (demuxer->chapters) {
374 for (i = 0; i < demuxer->num_chapters; i++)
375 free(demuxer->chapters[i].name);
376 free(demuxer->chapters);
377 }
378 if (demuxer->attachments) {
379 for (i = 0; i < demuxer->num_attachments; i++) {
380 free(demuxer->attachments[i].name);
381 free(demuxer->attachments[i].type);
382 free(demuxer->attachments[i].data);
383 }
384 free(demuxer->attachments);
385 }
386 free(demuxer);
387 }
388
389
390 void ds_add_packet(demux_stream_t *ds, demux_packet_t *dp)
391 {
392 // append packet to DS stream:
393 ++ds->packs;
394 ds->bytes += dp->len;
395 if (ds->last) {
396 // next packet in stream
397 ds->last->next = dp;
398 ds->last = dp;
399 } else {
400 // first packet in stream
401 ds->first = ds->last = dp;
402 }
403 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
404 "DEMUX: Append packet to %s, len=%d pts=%5.3f pos=%u [packs: A=%d V=%d]\n",
405 (ds == ds->demuxer->audio) ? "d_audio" : "d_video", dp->len,
406 dp->pts, (unsigned int) dp->pos, ds->demuxer->audio->packs,
407 ds->demuxer->video->packs);
408 }
409
410 void ds_read_packet(demux_stream_t *ds, stream_t *stream, int len,
411 double pts, off_t pos, int flags)
412 {
413 demux_packet_t *dp = new_demux_packet(len);
414 len = stream_read(stream, dp->buffer, len);
415 resize_demux_packet(dp, len);
416 dp->pts = pts;
417 dp->pos = pos;
418 dp->flags = flags;
419 // append packet to DS stream:
420 ds_add_packet(ds, dp);
421 }
422
423 // return value:
424 // 0 = EOF or no stream found or invalid type
425 // 1 = successfully read a packet
426
427 int demux_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
428 {
429 // Note: parameter 'ds' can be NULL!
430 return demux->desc->fill_buffer(demux, ds);
431 }
432
433 // return value:
434 // 0 = EOF
435 // 1 = successful
436 #define MAX_ACUMULATED_PACKETS 64
437 int ds_fill_buffer(demux_stream_t *ds)
438 {
439 demuxer_t *demux = ds->demuxer;
440 if (ds->current)
441 free_demux_packet(ds->current);
442 ds->current = NULL;
443 if (mp_msg_test(MSGT_DEMUXER, MSGL_DBG3)) {
444 if (ds == demux->audio)
445 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
446 "ds_fill_buffer(d_audio) called\n");
447 else if (ds == demux->video)
448 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
449 "ds_fill_buffer(d_video) called\n");
450 else if (ds == demux->sub)
451 mp_dbg(MSGT_DEMUXER, MSGL_DBG3, "ds_fill_buffer(d_sub) called\n");
452 else
453 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
454 "ds_fill_buffer(unknown 0x%X) called\n", (unsigned int) ds);
455 }
456 while (1) {
457 if (ds->packs) {
458 demux_packet_t *p = ds->first;
459 #if 0
460 if (demux->reference_clock != MP_NOPTS_VALUE) {
461 if ( p->pts != MP_NOPTS_VALUE
462 && p->pts > demux->reference_clock
463 && ds->packs < MAX_ACUMULATED_PACKETS) {
464 if (demux_fill_buffer(demux, ds))
465 continue;
466 }
467 }
468 #endif
469 // copy useful data:
470 ds->buffer = p->buffer;
471 ds->buffer_pos = 0;
472 ds->buffer_size = p->len;
473 ds->pos = p->pos;
474 ds->dpos += p->len; // !!!
475 ++ds->pack_no;
476 if (p->pts != MP_NOPTS_VALUE) {
477 ds->pts = p->pts;
478 ds->pts_bytes = 0;
479 }
480 ds->pts_bytes += p->len; // !!!
481 if (p->stream_pts != MP_NOPTS_VALUE)
482 demux->stream_pts = p->stream_pts;
483 ds->flags = p->flags;
484 // unlink packet:
485 ds->bytes -= p->len;
486 ds->current = p;
487 ds->first = p->next;
488 if (!ds->first)
489 ds->last = NULL;
490 --ds->packs;
491 return 1;
492 }
493 if (demux->audio->packs >= MAX_PACKS
494 || demux->audio->bytes >= MAX_PACK_BYTES) {
495 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyAudioInBuffer,
496 demux->audio->packs, demux->audio->bytes);
497 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
498 break;
499 }
500 if (demux->video->packs >= MAX_PACKS
501 || demux->video->bytes >= MAX_PACK_BYTES) {
502 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyVideoInBuffer,
503 demux->video->packs, demux->video->bytes);
504 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
505 break;
506 }
507 if (!demux_fill_buffer(demux, ds)) {
508 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
509 "ds_fill_buffer()->demux_fill_buffer() failed\n");
510 break; // EOF
511 }
512 }
513 ds->buffer_pos = ds->buffer_size = 0;
514 ds->buffer = NULL;
515 mp_msg(MSGT_DEMUXER, MSGL_V,
516 "ds_fill_buffer: EOF reached (stream: %s) \n",
517 ds == demux->audio ? "audio" : "video");
518 ds->eof = 1;
519 return 0;
520 }
521
522 int demux_read_data(demux_stream_t *ds, unsigned char *mem, int len)
523 {
524 int x;
525 int bytes = 0;
526 while (len > 0) {
527 x = ds->buffer_size - ds->buffer_pos;
528 if (x == 0) {
529 if (!ds_fill_buffer(ds))
530 return bytes;
531 } else {
532 if (x > len)
533 x = len;
534 if (mem)
535 fast_memcpy(mem + bytes, &ds->buffer[ds->buffer_pos], x);
536 bytes += x;
537 len -= x;
538 ds->buffer_pos += x;
539 }
540 }
541 return bytes;
542 }
543
544 /**
545 * \brief read data until the given 3-byte pattern is encountered, up to maxlen
546 * \param mem memory to read data into, may be NULL to discard data
547 * \param maxlen maximum number of bytes to read
548 * \param read number of bytes actually read
549 * \param pattern pattern to search for (lowest 8 bits are ignored)
550 * \return whether pattern was found
551 */
552 int demux_pattern_3(demux_stream_t *ds, unsigned char *mem, int maxlen,
553 int *read, uint32_t pattern)
554 {
555 register uint32_t head = 0xffffff00;
556 register uint32_t pat = pattern & 0xffffff00;
557 int total_len = 0;
558 do {
559 register unsigned char *ds_buf = &ds->buffer[ds->buffer_size];
560 int len = ds->buffer_size - ds->buffer_pos;
561 register long pos = -len;
562 if (unlikely(pos >= 0)) { // buffer is empty
563 ds_fill_buffer(ds);
564 continue;
565 }
566 do {
567 head |= ds_buf[pos];
568 head <<= 8;
569 } while (++pos && head != pat);
570 len += pos;
571 if (total_len + len > maxlen)
572 len = maxlen - total_len;
573 len = demux_read_data(ds, mem ? &mem[total_len] : NULL, len);
574 total_len += len;
575 } while ((head != pat || total_len < 3) && total_len < maxlen && !ds->eof);
576 if (read)
577 *read = total_len;
578 return total_len >= 3 && head == pat;
579 }
580
581 void ds_free_packs(demux_stream_t *ds)
582 {
583 demux_packet_t *dp = ds->first;
584 while (dp) {
585 demux_packet_t *dn = dp->next;
586 free_demux_packet(dp);
587 dp = dn;
588 }
589 if (ds->asf_packet) {
590 // free unfinished .asf fragments:
591 free(ds->asf_packet->buffer);
592 free(ds->asf_packet);
593 ds->asf_packet = NULL;
594 }
595 ds->first = ds->last = NULL;
596 ds->packs = 0; // !!!!!
597 ds->bytes = 0;
598 if (ds->current)
599 free_demux_packet(ds->current);
600 ds->current = NULL;
601 ds->buffer = NULL;
602 ds->buffer_pos = ds->buffer_size;
603 ds->pts = 0;
604 ds->pts_bytes = 0;
605 }
606
607 int ds_get_packet(demux_stream_t *ds, unsigned char **start)
608 {
609 int len;
610 if (ds->buffer_pos >= ds->buffer_size) {
611 if (!ds_fill_buffer(ds)) {
612 // EOF
613 *start = NULL;
614 return -1;
615 }
616 }
617 len = ds->buffer_size - ds->buffer_pos;
618 *start = &ds->buffer[ds->buffer_pos];
619 ds->buffer_pos += len;
620 return len;
621 }
622
623 int ds_get_packet_pts(demux_stream_t *ds, unsigned char **start, double *pts)
624 {
625 int len;
626 *pts = MP_NOPTS_VALUE;
627 if (ds->buffer_pos >= ds->buffer_size) {
628 if (!ds_fill_buffer(ds)) {
629 // EOF
630 *start = NULL;
631 return -1;
632 }
633 }
634 // Return pts unless this read starts from the middle of a packet
635 if (!ds->buffer_pos)
636 *pts = ds->current->pts;
637 len = ds->buffer_size - ds->buffer_pos;
638 *start = &ds->buffer[ds->buffer_pos];
639 ds->buffer_pos += len;
640 return len;
641 }
642
643 int ds_get_packet_sub(demux_stream_t *ds, unsigned char **start)
644 {
645 int len;
646 if (ds->buffer_pos >= ds->buffer_size) {
647 *start = NULL;
648 if (!ds->packs)
649 return -1; // no sub
650 if (!ds_fill_buffer(ds))
651 return -1; // EOF
652 }
653 len = ds->buffer_size - ds->buffer_pos;
654 *start = &ds->buffer[ds->buffer_pos];
655 ds->buffer_pos += len;
656 return len;
657 }
658
659 double ds_get_next_pts(demux_stream_t *ds)
660 {
661 demuxer_t *demux = ds->demuxer;
662 while (!ds->first) {
663 if (demux->audio->packs >= MAX_PACKS
664 || demux->audio->bytes >= MAX_PACK_BYTES) {
665 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyAudioInBuffer,
666 demux->audio->packs, demux->audio->bytes);
667 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
668 return MP_NOPTS_VALUE;
669 }
670 if (demux->video->packs >= MAX_PACKS
671 || demux->video->bytes >= MAX_PACK_BYTES) {
672 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_TooManyVideoInBuffer,
673 demux->video->packs, demux->video->bytes);
674 mp_msg(MSGT_DEMUXER, MSGL_HINT, MSGTR_MaybeNI);
675 return MP_NOPTS_VALUE;
676 }
677 if (!demux_fill_buffer(demux, ds))
678 return MP_NOPTS_VALUE;
679 }
680 return ds->first->pts;
681 }
682
683 // ====================================================================
684
685 void demuxer_help(void)
686 {
687 int i;
688
689 mp_msg(MSGT_DEMUXER, MSGL_INFO, "Available demuxers:\n");
690 mp_msg(MSGT_DEMUXER, MSGL_INFO, " demuxer: type info: (comment)\n");
691 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DEMUXERS\n");
692 for (i = 0; demuxer_list[i]; i++) {
693 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Don't display special demuxers
694 continue;
695 if (demuxer_list[i]->comment && strlen(demuxer_list[i]->comment))
696 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s (%s)\n",
697 demuxer_list[i]->name, demuxer_list[i]->type,
698 demuxer_list[i]->info, demuxer_list[i]->comment);
699 else
700 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s\n",
701 demuxer_list[i]->name, demuxer_list[i]->type,
702 demuxer_list[i]->info);
703 }
704 }
705
706
707 /**
708 * Get demuxer type for a given demuxer name
709 *
710 * @param demuxer_name string with demuxer name of demuxer number
711 * @param force will be set if demuxer should be forced.
712 * May be NULL.
713 * @return DEMUXER_TYPE_xxx, -1 if error or not found
714 */
715 int get_demuxer_type_from_name(char *demuxer_name, int *force)
716 {
717 int i;
718 long type_int;
719 char *endptr;
720
721 if (!demuxer_name || !demuxer_name[0])
722 return DEMUXER_TYPE_UNKNOWN;
723 if (force)
724 *force = demuxer_name[0] == '+';
725 if (demuxer_name[0] == '+')
726 demuxer_name = &demuxer_name[1];
727 for (i = 0; demuxer_list[i]; i++) {
728 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Can't select special demuxers from commandline
729 continue;
730 if (strcmp(demuxer_name, demuxer_list[i]->name) == 0)
731 return demuxer_list[i]->type;
732 }
733
734 // No match found, try to parse name as an integer (demuxer number)
735 type_int = strtol(demuxer_name, &endptr, 0);
736 if (*endptr) // Conversion failed
737 return -1;
738 if ((type_int > 0) && (type_int <= DEMUXER_TYPE_MAX))
739 return (int) type_int;
740
741 return -1;
742 }
743
744 int extension_parsing = 1; // 0=off 1=mixed (used only for unstable formats)
745
746 int correct_pts = 0;
747 int user_correct_pts = -1;
748
749 /*
750 NOTE : Several demuxers may be opened at the same time so
751 demuxers should NEVER rely on an external var to enable them
752 self. If a demuxer can't do any auto-detection it should only use
753 file_format. The user can explicitly set file_format with the -demuxer
754 option so there is really no need for another extra var.
755 For convenience an option can be added to set file_format directly
756 to the right type (ex: rawaudio,rawvideo).
757 Also the stream can override the file_format so a demuxer which rely
758 on a special stream type can set file_format at the stream level
759 (ex: tv,mf).
760 */
761
762 static demuxer_t *demux_open_stream(stream_t *stream, int file_format,
763 int force, int audio_id, int video_id,
764 int dvdsub_id, char *filename)
765 {
766 demuxer_t *demuxer = NULL;
767
768 sh_video_t *sh_video = NULL;
769
770 const demuxer_desc_t *demuxer_desc;
771 int fformat = 0;
772 int i;
773
774 // If somebody requested a demuxer check it
775 if (file_format) {
776 if ((demuxer_desc = get_demuxer_desc_from_type(file_format))) {
777 demuxer = new_demuxer(stream, demuxer_desc->type, audio_id,
778 video_id, dvdsub_id, filename);
779 if (demuxer_desc->check_file)
780 fformat = demuxer_desc->check_file(demuxer);
781 if (force || !demuxer_desc->check_file)
782 fformat = demuxer_desc->type;
783 if (fformat != 0) {
784 if (fformat == demuxer_desc->type) {
785 demuxer_t *demux2 = demuxer;
786 // Move messages to demuxer detection code?
787 mp_msg(MSGT_DEMUXER, MSGL_INFO,
788 MSGTR_Detected_XXX_FileFormat,
789 demuxer_desc->shortdesc);
790 file_format = fformat;
791 if (!demuxer->desc->open
792 || (demux2 = demuxer->desc->open(demuxer))) {
793 demuxer = demux2;
794 goto dmx_open;
795 }
796 } else {
797 // Format changed after check, recurse
798 free_demuxer(demuxer);
799 return demux_open_stream(stream, fformat, force, audio_id,
800 video_id, dvdsub_id, filename);
801 }
802 }
803 // Check failed for forced demuxer, quit
804 free_demuxer(demuxer);
805 return NULL;
806 }
807 }
808 // Test demuxers with safe file checks
809 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
810 if (demuxer_desc->safe_check) {
811 demuxer = new_demuxer(stream, demuxer_desc->type, audio_id,
812 video_id, dvdsub_id, filename);
813 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
814 if (fformat == demuxer_desc->type) {
815 demuxer_t *demux2 = demuxer;
816 mp_msg(MSGT_DEMUXER, MSGL_INFO,
817 MSGTR_Detected_XXX_FileFormat,
818 demuxer_desc->shortdesc);
819 file_format = fformat;
820 if (!demuxer->desc->open
821 || (demux2 = demuxer->desc->open(demuxer))) {
822 demuxer = demux2;
823 goto dmx_open;
824 }
825 } else {
826 if (fformat == DEMUXER_TYPE_PLAYLIST)
827 return demuxer; // handled in mplayer.c
828 // Format changed after check, recurse
829 free_demuxer(demuxer);
830 demuxer = demux_open_stream(stream, fformat, force,
831 audio_id, video_id,
832 dvdsub_id, filename);
833 if (demuxer)
834 return demuxer; // done!
835 file_format = DEMUXER_TYPE_UNKNOWN;
836 }
837 }
838 free_demuxer(demuxer);
839 demuxer = NULL;
840 }
841 }
842
843 // If no forced demuxer perform file extension based detection
844 // Ok. We're over the stable detectable fileformats, the next ones are
845 // a bit fuzzy. So by default (extension_parsing==1) try extension-based
846 // detection first:
847 if (file_format == DEMUXER_TYPE_UNKNOWN && filename
848 && extension_parsing == 1) {
849 file_format = demuxer_type_by_filename(filename);
850 if (file_format != DEMUXER_TYPE_UNKNOWN) {
851 // we like recursion :)
852 demuxer = demux_open_stream(stream, file_format, force, audio_id,
853 video_id, dvdsub_id, filename);
854 if (demuxer)
855 return demuxer; // done!
856 file_format = DEMUXER_TYPE_UNKNOWN; // continue fuzzy guessing...
857 mp_msg(MSGT_DEMUXER, MSGL_V,
858 "demuxer: continue fuzzy content-based format guessing...\n");
859 }
860 }
861 // Try detection for all other demuxers
862 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
863 if (!demuxer_desc->safe_check && demuxer_desc->check_file) {
864 demuxer = new_demuxer(stream, demuxer_desc->type, audio_id,
865 video_id, dvdsub_id, filename);
866 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
867 if (fformat == demuxer_desc->type) {
868 demuxer_t *demux2 = demuxer;
869 mp_msg(MSGT_DEMUXER, MSGL_INFO,
870 MSGTR_Detected_XXX_FileFormat,
871 demuxer_desc->shortdesc);
872 file_format = fformat;
873 if (!demuxer->desc->open
874 || (demux2 = demuxer->desc->open(demuxer))) {
875 demuxer = demux2;
876 goto dmx_open;
877 }
878 } else {
879 if (fformat == DEMUXER_TYPE_PLAYLIST)
880 return demuxer; // handled in mplayer.c
881 // Format changed after check, recurse
882 free_demuxer(demuxer);
883 demuxer = demux_open_stream(stream, fformat, force,
884 audio_id, video_id,
885 dvdsub_id, filename);
886 if (demuxer)
887 return demuxer; // done!
888 file_format = DEMUXER_TYPE_UNKNOWN;
889 }
890 }
891 free_demuxer(demuxer);
892 demuxer = NULL;
893 }
894 }
895
896 return NULL;
897 //====== File format recognized, set up these for compatibility: =========
898 dmx_open:
899
900 demuxer->file_format = file_format;
901
902 if ((sh_video = demuxer->video->sh) && sh_video->bih) {
903 int biComp = le2me_32(sh_video->bih->biCompression);
904 mp_msg(MSGT_DEMUX, MSGL_INFO,
905 "VIDEO: [%.4s] %dx%d %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
906 (char *) &biComp, sh_video->bih->biWidth,
907 sh_video->bih->biHeight, sh_video->bih->biBitCount,
908 sh_video->fps, sh_video->i_bps * 0.008f,
909 sh_video->i_bps / 1024.0f);
910 }
911 #ifdef CONFIG_ASS
912 if (ass_enabled && ass_library) {
913 for (i = 0; i < MAX_S_STREAMS; ++i) {
914 sh_sub_t *sh = demuxer->s_streams[i];
915 if (sh && sh->type == 'a') {
916 sh->ass_track = ass_new_track(ass_library);
917 if (sh->ass_track && sh->extradata)
918 ass_process_codec_private(sh->ass_track, sh->extradata,
919 sh->extradata_len);
920 } else if (sh && sh->type != 'v')
921 sh->ass_track = ass_default_track(ass_library);
922 }
923 }
924 #endif
925 return demuxer;
926 }
927
928 char *audio_stream = NULL;
929 char *sub_stream = NULL;
930 int audio_stream_cache = 0;
931
932 char *demuxer_name = NULL; // parameter from -demuxer
933 char *audio_demuxer_name = NULL; // parameter from -audio-demuxer
934 char *sub_demuxer_name = NULL; // parameter from -sub-demuxer
935
936 extern int hr_mp3_seek;
937
938 extern float stream_cache_min_percent;
939 extern float stream_cache_seek_min_percent;
940
941 demuxer_t *demux_open(stream_t *vs, int file_format, int audio_id,
942 int video_id, int dvdsub_id, char *filename)
943 {
944 stream_t *as = NULL, *ss = NULL;
945 demuxer_t *vd, *ad = NULL, *sd = NULL;
946 demuxer_t *res;
947 int afmt = DEMUXER_TYPE_UNKNOWN, sfmt = DEMUXER_TYPE_UNKNOWN;
948 int demuxer_type;
949 int audio_demuxer_type = 0, sub_demuxer_type = 0;
950 int demuxer_force = 0, audio_demuxer_force = 0, sub_demuxer_force = 0;
951
952 if ((demuxer_type =
953 get_demuxer_type_from_name(demuxer_name, &demuxer_force)) < 0) {
954 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-demuxer %s does not exist.\n",
955 demuxer_name);
956 }
957 if ((audio_demuxer_type =
958 get_demuxer_type_from_name(audio_demuxer_name,
959 &audio_demuxer_force)) < 0) {
960 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-audio-demuxer %s does not exist.\n",
961 audio_demuxer_name);
962 }
963 if ((sub_demuxer_type =
964 get_demuxer_type_from_name(sub_demuxer_name,
965 &sub_demuxer_force)) < 0) {
966 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-sub-demuxer %s does not exist.\n",
967 sub_demuxer_name);
968 }
969
970 if (audio_stream) {
971 as = open_stream(audio_stream, 0, &afmt);
972 if (!as) {
973 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_CannotOpenAudioStream,
974 audio_stream);
975 return NULL;
976 }
977 if (audio_stream_cache) {
978 if (!stream_enable_cache
979 (as, audio_stream_cache * 1024,
980 audio_stream_cache * 1024 * (stream_cache_min_percent /
981 100.0),
982 audio_stream_cache * 1024 * (stream_cache_seek_min_percent /
983 100.0))) {
984 free_stream(as);
985 mp_msg(MSGT_DEMUXER, MSGL_ERR,
986 "Can't enable audio stream cache\n");
987 return NULL;
988 }
989 }
990 }
991 if (sub_stream) {
992 ss = open_stream(sub_stream, 0, &sfmt);
993 if (!ss) {
994 mp_msg(MSGT_DEMUXER, MSGL_ERR, MSGTR_CannotOpenSubtitlesStream,
995 sub_stream);
996 return NULL;
997 }
998 }
999
1000 vd = demux_open_stream(vs, demuxer_type ? demuxer_type : file_format,
1001 demuxer_force, audio_stream ? -2 : audio_id,
1002 video_id, sub_stream ? -2 : dvdsub_id, filename);
1003 if (!vd) {
1004 if (as)
1005 free_stream(as);
1006 if (ss)
1007 free_stream(ss);
1008 return NULL;
1009 }
1010 if (as) {
1011 ad = demux_open_stream(as,
1012 audio_demuxer_type ? audio_demuxer_type : afmt,
1013 audio_demuxer_force, audio_id, -2, -2,
1014 audio_stream);
1015 if (!ad) {
1016 mp_msg(MSGT_DEMUXER, MSGL_WARN, MSGTR_OpeningAudioDemuxerFailed,
1017 audio_stream);
1018 free_stream(as);
1019 } else if (ad->audio->sh
1020 && ((sh_audio_t *) ad->audio->sh)->format == 0x55) // MP3
1021 hr_mp3_seek = 1; // Enable high res seeking
1022 }
1023 if (ss) {
1024 sd = demux_open_stream(ss, sub_demuxer_type ? sub_demuxer_type : sfmt,
1025 sub_demuxer_force, -2, -2, dvdsub_id,
1026 sub_stream);
1027 if (!sd) {
1028 mp_msg(MSGT_DEMUXER, MSGL_WARN,
1029 MSGTR_OpeningSubtitlesDemuxerFailed, sub_stream);
1030 free_stream(ss);
1031 }
1032 }
1033
1034 if (ad && sd)
1035 res = new_demuxers_demuxer(vd, ad, sd);
1036 else if (ad)
1037 res = new_demuxers_demuxer(vd, ad, vd);
1038 else if (sd)
1039 res = new_demuxers_demuxer(vd, vd, sd);
1040 else
1041 res = vd;
1042
1043 correct_pts = user_correct_pts;
1044 if (correct_pts < 0)
1045 correct_pts = demux_control(res, DEMUXER_CTRL_CORRECT_PTS, NULL)
1046 == DEMUXER_CTRL_OK;
1047 return res;
1048 }
1049
1050
1051 void demux_flush(demuxer_t *demuxer)
1052 {
1053 ds_free_packs(demuxer->video);
1054 ds_free_packs(demuxer->audio);
1055 ds_free_packs(demuxer->sub);
1056 }
1057
1058 int demux_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay,
1059 int flags)
1060 {
1061 demux_stream_t *d_audio = demuxer->audio;
1062 demux_stream_t *d_video = demuxer->video;
1063 sh_audio_t *sh_audio = d_audio->sh;
1064 sh_video_t *sh_video = d_video->sh;
1065 double tmp = 0;
1066 double pts;
1067
1068 if (!demuxer->seekable) {
1069 if (demuxer->file_format == DEMUXER_TYPE_AVI)
1070 mp_msg(MSGT_SEEK, MSGL_WARN, MSGTR_CantSeekRawAVI);
1071 #ifdef CONFIG_TV
1072 else if (demuxer->file_format == DEMUXER_TYPE_TV)
1073 mp_msg(MSGT_SEEK, MSGL_WARN, MSGTR_TVInputNotSeekable);
1074 #endif
1075 else
1076 mp_msg(MSGT_SEEK, MSGL_WARN, MSGTR_CantSeekFile);
1077 return 0;
1078 }
1079
1080 demux_flush(demuxer);
1081 // clear demux buffers:
1082 if (sh_audio)
1083 sh_audio->a_buffer_len = 0;
1084
1085 demuxer->stream->eof = 0;
1086 demuxer->video->eof = 0;
1087 demuxer->audio->eof = 0;
1088
1089 if (sh_video)
1090 sh_video->timer = 0; // !!!!!!
1091
1092 if (flags & SEEK_ABSOLUTE)
1093 pts = 0.0f;
1094 else {
1095 if (demuxer->stream_pts == MP_NOPTS_VALUE)
1096 goto dmx_seek;
1097 pts = demuxer->stream_pts;
1098 }
1099
1100 if (flags & SEEK_FACTOR) {
1101 if (stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH, &tmp)
1102 == STREAM_UNSUPPORTED)
1103 goto dmx_seek;
1104 pts += tmp * rel_seek_secs;
1105 } else
1106 pts += rel_seek_secs;
1107
1108 if (stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, &pts) !=
1109 STREAM_UNSUPPORTED) {
1110 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1111 return 1;
1112 }
1113
1114 dmx_seek:
1115 if (demuxer->desc->seek)
1116 demuxer->desc->seek(demuxer, rel_seek_secs, audio_delay, flags);
1117
1118 if (sh_audio)
1119 resync_audio_stream(sh_audio);
1120
1121 return 1;
1122 }
1123
1124 int demux_info_add(demuxer_t *demuxer, const char *opt, const char *param)
1125 {
1126 char **info = demuxer->info;
1127 int n = 0;
1128
1129
1130 for (n = 0; info && info[2 * n] != NULL; n++) {
1131 if (!strcasecmp(opt, info[2 * n])) {
1132 mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_DemuxerInfoChanged, opt,
1133 param);
1134 free(info[2 * n + 1]);
1135 info[2 * n + 1] = strdup(param);
1136 return 0;
1137 }
1138 }
1139
1140 info = demuxer->info = (char **) realloc(info,
1141 (2 * (n + 2)) * sizeof(char *));
1142 info[2 * n] = strdup(opt);
1143 info[2 * n + 1] = strdup(param);
1144 memset(&info[2 * (n + 1)], 0, 2 * sizeof(char *));
1145
1146 return 1;
1147 }
1148
1149 int demux_info_print(demuxer_t *demuxer)
1150 {
1151 char **info = demuxer->info;
1152 int n;
1153
1154 if (!info)
1155 return 0;
1156
1157 mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_ClipInfo);
1158 for (n = 0; info[2 * n] != NULL; n++) {
1159 mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n", info[2 * n],
1160 info[2 * n + 1]);
1161 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n,
1162 info[2 * n]);
1163 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n,
1164 info[2 * n + 1]);
1165 }
1166 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
1167
1168 return 0;
1169 }
1170
1171 char *demux_info_get(demuxer_t *demuxer, const char *opt)
1172 {
1173 int i;
1174 char **info = demuxer->info;
1175
1176 for (i = 0; info && info[2 * i] != NULL; i++) {
1177 if (!strcasecmp(opt, info[2 * i]))
1178 return info[2 * i + 1];
1179 }
1180
1181 return NULL;
1182 }
1183
1184 int demux_control(demuxer_t *demuxer, int cmd, void *arg)
1185 {
1186
1187 if (demuxer->desc->control)
1188 return demuxer->desc->control(demuxer, cmd, arg);
1189
1190 return DEMUXER_CTRL_NOTIMPL;
1191 }
1192
1193
1194
1195 double demuxer_get_time_length(demuxer_t *demuxer)
1196 {
1197 double get_time_ans;
1198 sh_video_t *sh_video = demuxer->video->sh;
1199 sh_audio_t *sh_audio = demuxer->audio->sh;
1200 // <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW
1201 if (demux_control
1202 (demuxer, DEMUXER_CTRL_GET_TIME_LENGTH, (void *) &get_time_ans) <= 0) {
1203 if (sh_video && sh_video->i_bps && sh_audio && sh_audio->i_bps)
1204 get_time_ans = (double) (demuxer->movi_end -
1205 demuxer->movi_start) / (sh_video->i_bps +
1206 sh_audio->i_bps);
1207 else if (sh_video && sh_video->i_bps)
1208 get_time_ans = (double) (demuxer->movi_end -
1209 demuxer->movi_start) / sh_video->i_bps;
1210 else if (sh_audio && sh_audio->i_bps)
1211 get_time_ans = (double) (demuxer->movi_end -
1212 demuxer->movi_start) / sh_audio->i_bps;
1213 else
1214 get_time_ans = 0;
1215 }
1216 return get_time_ans;
1217 }
1218
1219 /**
1220 * \brief demuxer_get_current_time() returns the time of the current play in three possible ways:
1221 * either when the stream reader satisfies STREAM_CTRL_GET_CURRENT_TIME (e.g. dvd)
1222 * or using sh_video->pts when the former method fails
1223 * 0 otherwise
1224 * \return the current play time
1225 */
1226 int demuxer_get_current_time(demuxer_t *demuxer)
1227 {
1228 double get_time_ans = 0;
1229 sh_video_t *sh_video = demuxer->video->sh;
1230 if (demuxer->stream_pts != MP_NOPTS_VALUE)
1231 get_time_ans = demuxer->stream_pts;
1232 else if (sh_video)
1233 get_time_ans = sh_video->pts;
1234 return (int) get_time_ans;
1235 }
1236
1237 int demuxer_get_percent_pos(demuxer_t *demuxer)
1238 {
1239 int ans = 0;
1240 int res = demux_control(demuxer, DEMUXER_CTRL_GET_PERCENT_POS, &ans);
1241 int len = (demuxer->movi_end - demuxer->movi_start) / 100;
1242 if (res <= 0) {
1243 if (len > 0)
1244 ans = (demuxer->filepos - demuxer->movi_start) / len;
1245 else
1246 ans = 0;
1247 }
1248 if (ans < 0)
1249 ans = 0;
1250 if (ans > 100)
1251 ans = 100;
1252 return ans;
1253 }
1254
1255 int demuxer_switch_audio(demuxer_t *demuxer, int index)
1256 {
1257 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &index);
1258 if (res == DEMUXER_CTRL_NOTIMPL)
1259 index = demuxer->audio->id;
1260 if (demuxer->audio->id >= 0)
1261 demuxer->audio->sh = demuxer->a_streams[demuxer->audio->id];
1262 else
1263 demuxer->audio->sh = NULL;
1264 return index;
1265 }
1266
1267 int demuxer_switch_video(demuxer_t *demuxer, int index)
1268 {
1269 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_VIDEO, &index);
1270 if (res == DEMUXER_CTRL_NOTIMPL)
1271 index = demuxer->video->id;
1272 if (demuxer->video->id >= 0)
1273 demuxer->video->sh = demuxer->v_streams[demuxer->video->id];
1274 else
1275 demuxer->video->sh = NULL;
1276 return index;
1277 }
1278
1279 int demuxer_add_attachment(demuxer_t *demuxer, const char *name,
1280 const char *type, const void *data, size_t size)
1281 {
1282 if (!(demuxer->num_attachments & 31))
1283 demuxer->attachments = realloc(demuxer->attachments,
1284 (demuxer->num_attachments + 32) * sizeof(demux_attachment_t));
1285
1286 demuxer->attachments[demuxer->num_attachments].name = strdup(name);
1287 demuxer->attachments[demuxer->num_attachments].type = strdup(type);
1288 demuxer->attachments[demuxer->num_attachments].data = malloc(size);
1289 memcpy(demuxer->attachments[demuxer->num_attachments].data, data, size);
1290 demuxer->attachments[demuxer->num_attachments].data_size = size;
1291
1292 return demuxer->num_attachments++;
1293 }
1294
1295 int demuxer_add_chapter(demuxer_t *demuxer, const char *name, uint64_t start,
1296 uint64_t end)
1297 {
1298 if (demuxer->chapters == NULL)
1299 demuxer->chapters = malloc(32 * sizeof(*demuxer->chapters));
1300 else if (!(demuxer->num_chapters % 32))
1301 demuxer->chapters = realloc(demuxer->chapters,
1302 (demuxer->num_chapters + 32) *
1303 sizeof(*demuxer->chapters));
1304
1305 demuxer->chapters[demuxer->num_chapters].start = start;
1306 demuxer->chapters[demuxer->num_chapters].end = end;
1307 demuxer->chapters[demuxer->num_chapters].name = strdup(name ? name : MSGTR_Unknown);
1308
1309 return demuxer->num_chapters++;
1310 }
1311
1312 /**
1313 * \brief demuxer_seek_chapter() seeks to a chapter in two possible ways:
1314 * either using the demuxer->chapters structure set by the demuxer
1315 * or asking help to the stream layer (e.g. dvd)
1316 * \param chapter - chapter number wished - 0-based
1317 * \param mode 0: relative to current main pts, 1: absolute
1318 * \param seek_pts set by the function to the pts to seek to (if demuxer->chapters is set)
1319 * \param num_chapters number of chapters present (set by this function is param is not null)
1320 * \param chapter_name name of chapter found (set by this function is param is not null)
1321 * \return -1 on error, current chapter if successful
1322 */
1323
1324 int demuxer_seek_chapter(demuxer_t *demuxer, int chapter, int mode,
1325 float *seek_pts, int *num_chapters,
1326 char **chapter_name)
1327 {
1328 int ris;
1329 int current, total;
1330 sh_video_t *sh_video = demuxer->video->sh;
1331 sh_audio_t *sh_audio = demuxer->audio->sh;
1332
1333 if (!demuxer->num_chapters || !demuxer->chapters) {
1334 if (!mode) {
1335 ris = stream_control(demuxer->stream,
1336 STREAM_CTRL_GET_CURRENT_CHAPTER, &current);
1337 if (ris == STREAM_UNSUPPORTED)
1338 return -1;
1339 chapter += current;
1340 }
1341
1342 demux_flush(demuxer);
1343
1344 ris = stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_CHAPTER,
1345 &chapter);
1346 if (ris != STREAM_UNSUPPORTED)
1347 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1348 if (sh_video) {
1349 ds_fill_buffer(demuxer->video);
1350 resync_video_stream(sh_video);
1351 }
1352
1353 if (sh_audio) {
1354 ds_fill_buffer(demuxer->audio);
1355 resync_audio_stream(sh_audio);
1356 }
1357 // exit status may be ok, but main() doesn't have to seek itself
1358 // (because e.g. dvds depend on sectors, not on pts)
1359 *seek_pts = -1.0;
1360
1361 if (num_chapters) {
1362 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1363 num_chapters) == STREAM_UNSUPPORTED)
1364 *num_chapters = 0;
1365 }
1366
1367 if (chapter_name) {
1368 *chapter_name = NULL;
1369 if (num_chapters && *num_chapters) {
1370 char *tmp = malloc(16);
1371 if (tmp) {
1372 sprintf(tmp, " of %3d", *num_chapters);
1373 *chapter_name = tmp;
1374 }
1375 }
1376 }
1377
1378 return ris != STREAM_UNSUPPORTED ? chapter : -1;
1379 } else { // chapters structure is set in the demuxer
1380 total = demuxer->num_chapters;
1381
1382 if (mode == 1) //absolute seeking
1383 current = chapter;
1384 else { //relative seeking
1385 uint64_t now;
1386 now = (sh_video ? sh_video->pts : (sh_audio ? sh_audio->pts : 0.))
1387 * 1000 + .5;
1388
1389 for (current = total - 1; current >= 0; --current) {
1390 demux_chapter_t *chapter = demuxer->chapters + current;
1391 if (chapter->start <= now)
1392 break;
1393 }
1394 current += chapter;
1395 }
1396
1397 if (current >= total)
1398 return -1;
1399 if (current < 0)
1400 current = 0;
1401
1402 *seek_pts = demuxer->chapters[current].start / 1000.0;
1403
1404 if (num_chapters)
1405 *num_chapters = demuxer->num_chapters;
1406
1407 if (chapter_name) {
1408 if (demuxer->chapters[current].name)
1409 *chapter_name = strdup(demuxer->chapters[current].name);
1410 else
1411 *chapter_name = NULL;
1412 }
1413
1414 return current;
1415 }
1416 }
1417
1418 int demuxer_get_current_chapter(demuxer_t *demuxer)
1419 {
1420 int chapter = -1;
1421 if (!demuxer->num_chapters || !demuxer->chapters) {
1422 if (stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_CHAPTER,
1423 &chapter) == STREAM_UNSUPPORTED)
1424 chapter = -1;
1425 } else {
1426 sh_video_t *sh_video = demuxer->video->sh;
1427 sh_audio_t *sh_audio = demuxer->audio->sh;
1428 uint64_t now;
1429 now = (sh_video ? sh_video->pts : (sh_audio ? sh_audio->pts : 0))
1430 * 1000 + 0.5;
1431 for (chapter = demuxer->num_chapters - 1; chapter >= 0; --chapter) {
1432 if (demuxer->chapters[chapter].start <= now)
1433 break;
1434 }
1435 }
1436 return chapter;
1437 }
1438
1439 char *demuxer_chapter_name(demuxer_t *demuxer, int chapter)
1440 {
1441 if (demuxer->num_chapters && demuxer->chapters) {
1442 if (chapter >= 0 && chapter < demuxer->num_chapters
1443 && demuxer->chapters[chapter].name)
1444 return strdup(demuxer->chapters[chapter].name);
1445 }
1446 return NULL;
1447 }
1448
1449 char *demuxer_chapter_display_name(demuxer_t *demuxer, int chapter)
1450 {
1451 char *chapter_name = demuxer_chapter_name(demuxer, chapter);
1452 if (chapter_name) {
1453 char *tmp = malloc(strlen(chapter_name) + 14);
1454 snprintf(tmp, 63, "(%d) %s", chapter + 1, chapter_name);
1455 free(chapter_name);
1456 return tmp;
1457 } else {
1458 int chapter_num = demuxer_chapter_count(demuxer);
1459 char tmp[30];
1460 if (chapter_num <= 0)
1461 sprintf(tmp, "(%d)", chapter + 1);
1462 else
1463 sprintf(tmp, "(%d) of %d", chapter + 1, chapter_num);
1464 return strdup(tmp);
1465 }
1466 }
1467
1468 float demuxer_chapter_time(demuxer_t *demuxer, int chapter, float *end)
1469 {
1470 if (demuxer->num_chapters && demuxer->chapters && chapter >= 0
1471 && chapter < demuxer->num_chapters) {
1472 if (end)
1473 *end = demuxer->chapters[chapter].end / 1000.0;
1474 return demuxer->chapters[chapter].start / 1000.0;
1475 }
1476 return -1.0;
1477 }
1478
1479 int demuxer_chapter_count(demuxer_t *demuxer)
1480 {
1481 if (!demuxer->num_chapters || !demuxer->chapters) {
1482 int num_chapters = 0;
1483 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1484 &num_chapters) == STREAM_UNSUPPORTED)
1485 num_chapters = 0;
1486 return num_chapters;
1487 } else
1488 return demuxer->num_chapters;
1489 }
1490
1491 int demuxer_angles_count(demuxer_t *demuxer)
1492 {
1493 int ris, angles = -1;
1494
1495 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_ANGLES, &angles);
1496 if (ris == STREAM_UNSUPPORTED)
1497 return -1;
1498 return angles;
1499 }
1500
1501 int demuxer_get_current_angle(demuxer_t *demuxer)
1502 {
1503 int ris, curr_angle = -1;
1504 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_ANGLE, &curr_angle);
1505 if (ris == STREAM_UNSUPPORTED)
1506 return -1;
1507 return curr_angle;
1508 }
1509
1510
1511 int demuxer_set_angle(demuxer_t *demuxer, int angle)
1512 {
1513 int ris, angles = -1;
1514 sh_video_t *sh_video = demuxer->video->sh;
1515 sh_audio_t *sh_audio = demuxer->audio->sh;
1516
1517 angles = demuxer_angles_count(demuxer);
1518 if ((angles < 1) || (angle > angles))
1519 return -1;
1520
1521 demux_flush(demuxer);
1522
1523 ris = stream_control(demuxer->stream, STREAM_CTRL_SET_ANGLE, &angle);
1524 if (ris == STREAM_UNSUPPORTED)
1525 return -1;
1526
1527 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1528 if (sh_video) {
1529 ds_fill_buffer(demuxer->video);
1530 resync_video_stream(sh_video);
1531 }
1532
1533 if (sh_audio) {
1534 ds_fill_buffer(demuxer->audio);
1535 resync_audio_stream(sh_audio);
1536 }
1537
1538 return angle;
1539 }
1540
1541 int demuxer_audio_track_by_lang(demuxer_t *d, char *lang)
1542 {
1543 int i, len;
1544 lang += strspn(lang, ",");
1545 while ((len = strcspn(lang, ",")) > 0) {
1546 for (i = 0; i < MAX_A_STREAMS; ++i) {
1547 sh_audio_t *sh = d->a_streams[i];
1548 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1549 return sh->aid;
1550 }
1551 lang += len;
1552 lang += strspn(lang, ",");
1553 }
1554 return -1;
1555 }
1556
1557 int demuxer_sub_track_by_lang(demuxer_t *d, char *lang)
1558 {
1559 int i, len;
1560 lang += strspn(lang, ",");
1561 while ((len = strcspn(lang, ",")) > 0) {
1562 for (i = 0; i < MAX_S_STREAMS; ++i) {
1563 sh_sub_t *sh = d->s_streams[i];
1564 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1565 return sh->sid;
1566 }
1567 lang += len;
1568 lang += strspn(lang, ",");
1569 }
1570 return -1;
1571 }
1572
1573 int demuxer_default_audio_track(demuxer_t *d)
1574 {
1575 int i;
1576 for (i = 0; i < MAX_A_STREAMS; ++i) {
1577 sh_audio_t *sh = d->a_streams[i];
1578 if (sh && sh->default_track)
1579 return sh->aid;
1580 }
1581 for (i = 0; i < MAX_A_STREAMS; ++i) {
1582 sh_audio_t *sh = d->a_streams[i];
1583 if (sh)
1584 return sh->aid;
1585 }
1586 return -1;
1587 }
1588
1589 int demuxer_default_sub_track(demuxer_t *d)
1590 {
1591 int i;
1592 for (i = 0; i < MAX_S_STREAMS; ++i) {
1593 sh_sub_t *sh = d->s_streams[i];
1594 if (sh && sh->default_track)
1595 return sh->sid;
1596 }
1597 return -1;
1598 }
mplayer with SMedia Glamo drivers