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options: add "choice" option type, use for -pts-association-mode
[mplayer/glamo.git] / libmpdemux / demuxer.c
blobaf7f40c0043b85cfe42007142c2c34b2042957f6
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 "options.h"
31 #include "talloc.h"
32 #include "mp_msg.h"
33 #include "m_config.h"
34
35 #include "libvo/fastmemcpy.h"
36
37 #include "stream/stream.h"
38 #include "demuxer.h"
39 #include "stheader.h"
40 #include "mf.h"
41
42 #include "libaf/af_format.h"
43 #include "libmpcodecs/dec_teletext.h"
44 #include "libmpcodecs/vd_ffmpeg.h"
45
46 #include "ass_mp.h"
47
48 #ifdef CONFIG_FFMPEG
49 #include "libavcodec/avcodec.h"
50 #if MP_INPUT_BUFFER_PADDING_SIZE < FF_INPUT_BUFFER_PADDING_SIZE
51 #error MP_INPUT_BUFFER_PADDING_SIZE is too small!
52 #endif
53 #endif
54
55 // This is quite experimental, in particular it will mess up the pts values
56 // in the queue - on the other hand it might fix some issues like generating
57 // broken files with mencoder and stream copy.
58 // Better leave it disabled for now, if we find no use for it this code should
59 // just be removed again.
60 #define PARSE_ON_ADD 0
61
62 static void clear_parser(sh_common_t *sh);
63
64 // Demuxer list
65 extern const demuxer_desc_t demuxer_desc_rawaudio;
66 extern const demuxer_desc_t demuxer_desc_rawvideo;
67 extern const demuxer_desc_t demuxer_desc_tv;
68 extern const demuxer_desc_t demuxer_desc_mf;
69 extern const demuxer_desc_t demuxer_desc_avi;
70 extern const demuxer_desc_t demuxer_desc_y4m;
71 extern const demuxer_desc_t demuxer_desc_asf;
72 extern const demuxer_desc_t demuxer_desc_real;
73 extern const demuxer_desc_t demuxer_desc_smjpeg;
74 extern const demuxer_desc_t demuxer_desc_matroska;
75 extern const demuxer_desc_t demuxer_desc_realaudio;
76 extern const demuxer_desc_t demuxer_desc_vqf;
77 extern const demuxer_desc_t demuxer_desc_mov;
78 extern const demuxer_desc_t demuxer_desc_vivo;
79 extern const demuxer_desc_t demuxer_desc_fli;
80 extern const demuxer_desc_t demuxer_desc_film;
81 extern const demuxer_desc_t demuxer_desc_roq;
82 extern const demuxer_desc_t demuxer_desc_gif;
83 extern const demuxer_desc_t demuxer_desc_ogg;
84 extern const demuxer_desc_t demuxer_desc_avs;
85 extern const demuxer_desc_t demuxer_desc_pva;
86 extern const demuxer_desc_t demuxer_desc_nsv;
87 extern const demuxer_desc_t demuxer_desc_mpeg_ts;
88 extern const demuxer_desc_t demuxer_desc_lmlm4;
89 extern const demuxer_desc_t demuxer_desc_mpeg_ps;
90 extern const demuxer_desc_t demuxer_desc_mpeg_pes;
91 extern const demuxer_desc_t demuxer_desc_mpeg_es;
92 extern const demuxer_desc_t demuxer_desc_mpeg_gxf;
93 extern const demuxer_desc_t demuxer_desc_mpeg4_es;
94 extern const demuxer_desc_t demuxer_desc_h264_es;
95 extern const demuxer_desc_t demuxer_desc_rawdv;
96 extern const demuxer_desc_t demuxer_desc_mpc;
97 extern const demuxer_desc_t demuxer_desc_audio;
98 extern const demuxer_desc_t demuxer_desc_xmms;
99 extern const demuxer_desc_t demuxer_desc_mpeg_ty;
100 extern const demuxer_desc_t demuxer_desc_rtp;
101 extern const demuxer_desc_t demuxer_desc_rtp_nemesi;
102 extern const demuxer_desc_t demuxer_desc_lavf;
103 extern const demuxer_desc_t demuxer_desc_lavf_preferred;
104 extern const demuxer_desc_t demuxer_desc_aac;
105 extern const demuxer_desc_t demuxer_desc_nut;
106 extern const demuxer_desc_t demuxer_desc_mng;
107
108 /* Please do not add any new demuxers here. If you want to implement a new
109 * demuxer, add it to libavformat, except for wrappers around external
110 * libraries and demuxers requiring binary support. */
111
112 const demuxer_desc_t *const demuxer_list[] = {
113 &demuxer_desc_rawaudio,
114 &demuxer_desc_rawvideo,
115 #ifdef CONFIG_TV
116 &demuxer_desc_tv,
117 #endif
118 &demuxer_desc_mf,
119 #ifdef CONFIG_FFMPEG
120 &demuxer_desc_lavf_preferred,
121 #endif
122 &demuxer_desc_avi,
123 &demuxer_desc_y4m,
124 &demuxer_desc_asf,
125 &demuxer_desc_nsv,
126 &demuxer_desc_real,
127 &demuxer_desc_smjpeg,
128 &demuxer_desc_matroska,
129 &demuxer_desc_realaudio,
130 &demuxer_desc_vqf,
131 &demuxer_desc_mov,
132 &demuxer_desc_vivo,
133 &demuxer_desc_fli,
134 &demuxer_desc_film,
135 &demuxer_desc_roq,
136 #ifdef CONFIG_GIF
137 &demuxer_desc_gif,
138 #endif
139 #ifdef CONFIG_OGGVORBIS
140 &demuxer_desc_ogg,
141 #endif
142 #ifdef CONFIG_WIN32DLL
143 &demuxer_desc_avs,
144 #endif
145 &demuxer_desc_pva,
146 &demuxer_desc_mpeg_ts,
147 &demuxer_desc_lmlm4,
148 &demuxer_desc_mpeg_ps,
149 &demuxer_desc_mpeg_pes,
150 &demuxer_desc_mpeg_es,
151 &demuxer_desc_mpeg_gxf,
152 &demuxer_desc_mpeg4_es,
153 &demuxer_desc_h264_es,
154 &demuxer_desc_audio,
155 &demuxer_desc_mpeg_ty,
156 #ifdef CONFIG_LIVE555
157 &demuxer_desc_rtp,
158 #endif
159 #ifdef CONFIG_LIBNEMESI
160 &demuxer_desc_rtp_nemesi,
161 #endif
162 #ifdef CONFIG_FFMPEG
163 &demuxer_desc_lavf,
164 #endif
165 #ifdef CONFIG_MUSEPACK
166 &demuxer_desc_mpc,
167 #endif
168 #ifdef CONFIG_LIBDV095
169 &demuxer_desc_rawdv,
170 #endif
171 &demuxer_desc_aac,
172 #ifdef CONFIG_LIBNUT
173 &demuxer_desc_nut,
174 #endif
175 #ifdef CONFIG_XMMS
176 &demuxer_desc_xmms,
177 #endif
178 #ifdef CONFIG_MNG
179 &demuxer_desc_mng,
180 #endif
181 /* Please do not add any new demuxers here. If you want to implement a new
182 * demuxer, add it to libavformat, except for wrappers around external
183 * libraries and demuxers requiring binary support. */
184 NULL
185 };
186
187 void free_demuxer_stream(demux_stream_t *ds)
188 {
189 ds_free_packs(ds);
190 free(ds);
191 }
192
193 demux_stream_t *new_demuxer_stream(struct demuxer *demuxer, int id)
194 {
195 demux_stream_t *ds = malloc(sizeof(demux_stream_t));
196 *ds = (demux_stream_t){
197 .id = id,
198 .demuxer = demuxer,
199 .asf_seq = -1,
200 };
201 return ds;
202 }
203
204
205 /**
206 * Get demuxer description structure for a given demuxer type
207 *
208 * @param file_format type of the demuxer
209 * @return structure for the demuxer, NULL if not found
210 */
211 static const demuxer_desc_t *get_demuxer_desc_from_type(int file_format)
212 {
213 int i;
214
215 for (i = 0; demuxer_list[i]; i++)
216 if (file_format == demuxer_list[i]->type)
217 return demuxer_list[i];
218
219 return NULL;
220 }
221
222
223 demuxer_t *new_demuxer(struct MPOpts *opts, stream_t *stream, int type,
224 int a_id, int v_id, int s_id, char *filename)
225 {
226 struct demuxer *d = talloc_zero(NULL, struct demuxer);
227 d->stream = stream;
228 d->stream_pts = MP_NOPTS_VALUE;
229 d->reference_clock = MP_NOPTS_VALUE;
230 d->movi_start = stream->start_pos;
231 d->movi_end = stream->end_pos;
232 d->seekable = 1;
233 d->synced = 0;
234 d->filepos = -1;
235 d->audio = new_demuxer_stream(d, a_id);
236 d->video = new_demuxer_stream(d, v_id);
237 d->sub = new_demuxer_stream(d, s_id);
238 d->type = type;
239 d->opts = opts;
240 if (type)
241 if (!(d->desc = get_demuxer_desc_from_type(type)))
242 mp_msg(MSGT_DEMUXER, MSGL_ERR,
243 "BUG! Invalid demuxer type in new_demuxer(), "
244 "big troubles ahead.");
245 if (filename) // Filename hack for avs_check_file
246 d->filename = strdup(filename);
247 stream_seek(stream, stream->start_pos);
248 return d;
249 }
250
251 const char *sh_sub_type2str(int type)
252 {
253 switch (type) {
254 case 't': return "text";
255 case 'm': return "movtext";
256 case 'a': return "ass";
257 case 'v': return "vobsub";
258 case 'x': return "xsub";
259 case 'b': return "dvb";
260 case 'd': return "dvb-teletext";
261 case 'p': return "hdmv pgs";
262 }
263 return "unknown";
264 }
265
266 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid)
267 {
268 if (id > MAX_S_STREAMS - 1 || id < 0) {
269 mp_msg(MSGT_DEMUXER, MSGL_WARN,
270 "Requested sub stream id overflow (%d > %d)\n", id,
271 MAX_S_STREAMS);
272 return NULL;
273 }
274 if (demuxer->s_streams[id])
275 mp_msg(MSGT_DEMUXER, MSGL_WARN, "Sub stream %i redefined\n", id);
276 else {
277 sh_sub_t *sh = calloc(1, sizeof(sh_sub_t));
278 demuxer->s_streams[id] = sh;
279 sh->sid = sid;
280 sh->opts = demuxer->opts;
281 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sid);
282 }
283 if (sid == demuxer->opts->sub_id) {
284 demuxer->sub->id = id;
285 demuxer->sub->sh = demuxer->s_streams[id];
286 }
287 return demuxer->s_streams[id];
288 }
289
290 struct sh_sub *new_sh_sub_sid_lang(struct demuxer *demuxer, int id, int sid,
291 const char *lang)
292 {
293 struct sh_sub *sh = new_sh_sub_sid(demuxer, id, sid);
294 if (lang && lang[0] && strcmp(lang, "und")) {
295 sh->lang = strdup(lang);
296 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", sid, lang);
297 }
298 return sh;
299 }
300
301 static void free_sh_sub(sh_sub_t *sh)
302 {
303 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_sub at %p\n", sh);
304 free(sh->extradata);
305 #ifdef CONFIG_ASS
306 if (sh->ass_track)
307 ass_free_track(sh->ass_track);
308 #endif
309 free(sh->lang);
310 #ifdef CONFIG_FFMPEG
311 clear_parser((sh_common_t *)sh);
312 #endif
313 free(sh);
314 }
315
316 sh_audio_t *new_sh_audio_aid(demuxer_t *demuxer, int id, int aid)
317 {
318 if (id > MAX_A_STREAMS - 1 || id < 0) {
319 mp_msg(MSGT_DEMUXER, MSGL_WARN,
320 "Requested audio stream id overflow (%d > %d)\n", id,
321 MAX_A_STREAMS);
322 return NULL;
323 }
324 if (demuxer->a_streams[id]) {
325 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Audio stream header %d redefined.\n", id);
326 } else {
327 mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found audio stream: %d\n", id);
328 sh_audio_t *sh = calloc(1, sizeof(sh_audio_t));
329 demuxer->a_streams[id] = sh;
330 sh->aid = aid;
331 sh->ds = demuxer->audio;
332 // set some defaults
333 sh->samplesize = 2;
334 sh->sample_format = AF_FORMAT_S16_NE;
335 sh->opts = demuxer->opts;
336 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", aid);
337 }
338 return demuxer->a_streams[id];
339 }
340
341 void free_sh_audio(demuxer_t *demuxer, int id)
342 {
343 sh_audio_t *sh = demuxer->a_streams[id];
344 demuxer->a_streams[id] = NULL;
345 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_audio at %p\n", sh);
346 free(sh->wf);
347 free(sh->codecdata);
348 free(sh->lang);
349 #ifdef CONFIG_FFMPEG
350 clear_parser((sh_common_t *)sh);
351 #endif
352 free(sh);
353 }
354
355 sh_video_t *new_sh_video_vid(demuxer_t *demuxer, int id, int vid)
356 {
357 if (id > MAX_V_STREAMS - 1 || id < 0) {
358 mp_msg(MSGT_DEMUXER, MSGL_WARN,
359 "Requested video stream id overflow (%d > %d)\n", id,
360 MAX_V_STREAMS);
361 return NULL;
362 }
363 if (demuxer->v_streams[id])
364 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Video stream header %d redefined.\n", id);
365 else {
366 mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found video stream: %d\n", id);
367 sh_video_t *sh = calloc(1, sizeof *sh);
368 demuxer->v_streams[id] = sh;
369 sh->vid = vid;
370 sh->ds = demuxer->video;
371 sh->opts = demuxer->opts;
372 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_ID=%d\n", vid);
373 }
374 return demuxer->v_streams[id];
375 }
376
377 void free_sh_video(sh_video_t *sh)
378 {
379 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_video at %p\n", sh);
380 free(sh->bih);
381 #ifdef CONFIG_FFMPEG
382 clear_parser((sh_common_t *)sh);
383 #endif
384 free(sh);
385 }
386
387 void free_demuxer(demuxer_t *demuxer)
388 {
389 int i;
390 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing %s demuxer at %p\n",
391 demuxer->desc->shortdesc, demuxer);
392 if (demuxer->desc->close)
393 demuxer->desc->close(demuxer);
394 // Very ugly hack to make it behave like old implementation
395 if (demuxer->desc->type == DEMUXER_TYPE_DEMUXERS)
396 goto skip_streamfree;
397 // free streams:
398 for (i = 0; i < MAX_A_STREAMS; i++)
399 if (demuxer->a_streams[i])
400 free_sh_audio(demuxer, i);
401 for (i = 0; i < MAX_V_STREAMS; i++)
402 if (demuxer->v_streams[i])
403 free_sh_video(demuxer->v_streams[i]);
404 for (i = 0; i < MAX_S_STREAMS; i++)
405 if (demuxer->s_streams[i])
406 free_sh_sub(demuxer->s_streams[i]);
407 // free demuxers:
408 free_demuxer_stream(demuxer->audio);
409 free_demuxer_stream(demuxer->video);
410 free_demuxer_stream(demuxer->sub);
411 skip_streamfree:
412 free(demuxer->filename);
413 if (demuxer->teletext)
414 teletext_control(demuxer->teletext, TV_VBI_CONTROL_STOP, NULL);
415 talloc_free(demuxer);
416 }
417
418
419 static void ds_add_packet_internal(demux_stream_t *ds, demux_packet_t *dp)
420 {
421 // append packet to DS stream:
422 ++ds->packs;
423 ds->bytes += dp->len;
424 if (ds->last) {
425 // next packet in stream
426 ds->last->next = dp;
427 ds->last = dp;
428 } else {
429 // first packet in stream
430 ds->first = ds->last = dp;
431 }
432 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
433 "DEMUX: Append packet to %s, len=%d pts=%5.3f pos=%u [packs: A=%d V=%d]\n",
434 (ds == ds->demuxer->audio) ? "d_audio" : "d_video", dp->len,
435 dp->pts, (unsigned int) dp->pos, ds->demuxer->audio->packs,
436 ds->demuxer->video->packs);
437 }
438
439 #ifdef CONFIG_FFMPEG
440 static void allocate_parser(AVCodecContext **avctx, AVCodecParserContext **parser, unsigned format)
441 {
442 enum CodecID codec_id = CODEC_ID_NONE;
443
444 init_avcodec();
445
446 switch (format) {
447 #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(52, 94, 0)
448 case MKTAG('M', 'P', '4', 'L'):
449 codec_id = CODEC_ID_AAC_LATM;
450 break;
451 #endif
452 case 0x2000:
453 case 0x332D6361:
454 case 0x332D4341:
455 case 0x20736D:
456 case MKTAG('d', 'n', 'e', 't'):
457 case MKTAG('s', 'a', 'c', '3'):
458 codec_id = CODEC_ID_AC3;
459 break;
460 case MKTAG('E', 'A', 'C', '3'):
461 codec_id = CODEC_ID_EAC3;
462 break;
463 case 0x2001:
464 case 0x86:
465 codec_id = CODEC_ID_DTS;
466 break;
467 case MKTAG('f', 'L', 'a', 'C'):
468 codec_id = CODEC_ID_FLAC;
469 break;
470 case MKTAG('M', 'L', 'P', ' '):
471 codec_id = CODEC_ID_MLP;
472 break;
473 case 0x55:
474 case 0x5500736d:
475 case 0x55005354:
476 case MKTAG('.', 'm', 'p', '3'):
477 case MKTAG('M', 'P', '3', ' '):
478 case MKTAG('L', 'A', 'M', 'E'):
479 codec_id = CODEC_ID_MP3;
480 break;
481 case 0x50:
482 case 0x5000736d:
483 case MKTAG('.', 'm', 'p', '2'):
484 case MKTAG('.', 'm', 'p', '1'):
485 codec_id = CODEC_ID_MP2;
486 break;
487 case MKTAG('T', 'R', 'H', 'D'):
488 codec_id = CODEC_ID_TRUEHD;
489 break;
490 }
491 if (codec_id != CODEC_ID_NONE) {
492 *avctx = avcodec_alloc_context();
493 if (!*avctx)
494 return;
495 *parser = av_parser_init(codec_id);
496 if (!*parser)
497 av_freep(avctx);
498 }
499 }
500
501 static void get_parser(sh_common_t *sh, AVCodecContext **avctx, AVCodecParserContext **parser)
502 {
503 *avctx = NULL;
504 *parser = NULL;
505
506 if (!sh || !sh->needs_parsing)
507 return;
508
509 *avctx = sh->avctx;
510 *parser = sh->parser;
511 if (*parser)
512 return;
513
514 allocate_parser(avctx, parser, sh->format);
515 sh->avctx = *avctx;
516 sh->parser = *parser;
517 }
518
519 int ds_parse(demux_stream_t *ds, uint8_t **buffer, int *len, double pts, off_t pos)
520 {
521 AVCodecContext *avctx;
522 AVCodecParserContext *parser;
523 get_parser(ds->sh, &avctx, &parser);
524 if (!parser)
525 return *len;
526 return av_parser_parse2(parser, avctx, buffer, len, *buffer, *len, pts, pts, pos);
527 }
528
529 static void clear_parser(sh_common_t *sh)
530 {
531 av_parser_close(sh->parser);
532 sh->parser = NULL;
533 av_freep(&sh->avctx);
534 }
535
536 void ds_clear_parser(demux_stream_t *ds)
537 {
538 if (!ds->sh)
539 return;
540 clear_parser(ds->sh);
541 }
542 #endif
543
544 void ds_add_packet(demux_stream_t *ds, demux_packet_t *dp)
545 {
546 #if PARSE_ON_ADD && defined(CONFIG_FFMPEG)
547 int len = dp->len;
548 int pos = 0;
549 while (len > 0) {
550 uint8_t *parsed_start = dp->buffer + pos;
551 int parsed_len = len;
552 int consumed = ds_parse(ds->sh, &parsed_start, &parsed_len, dp->pts, dp->pos);
553 pos += consumed;
554 len -= consumed;
555 if (parsed_start == dp->buffer && parsed_len == dp->len) {
556 ds_add_packet_internal(ds, dp);
557 } else if (parsed_len) {
558 demux_packet_t *dp2 = new_demux_packet(parsed_len);
559 dp2->pos = dp->pos;
560 dp2->pts = dp->pts; // should be parser->pts but that works badly
561 memcpy(dp2->buffer, parsed_start, parsed_len);
562 ds_add_packet_internal(ds, dp2);
563 }
564 }
565 #else
566 ds_add_packet_internal(ds, dp);
567 #endif
568 }
569
570 void ds_read_packet(demux_stream_t *ds, stream_t *stream, int len,
571 double pts, off_t pos, int flags)
572 {
573 demux_packet_t *dp = new_demux_packet(len);
574 len = stream_read(stream, dp->buffer, len);
575 resize_demux_packet(dp, len);
576 dp->pts = pts;
577 dp->pos = pos;
578 dp->flags = flags;
579 // append packet to DS stream:
580 ds_add_packet(ds, dp);
581 }
582
583 // return value:
584 // 0 = EOF or no stream found or invalid type
585 // 1 = successfully read a packet
586
587 int demux_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
588 {
589 // Note: parameter 'ds' can be NULL!
590 return demux->desc->fill_buffer(demux, ds);
591 }
592
593 // return value:
594 // 0 = EOF
595 // 1 = successful
596 #define MAX_ACUMULATED_PACKETS 64
597 int ds_fill_buffer(demux_stream_t *ds)
598 {
599 demuxer_t *demux = ds->demuxer;
600 if (ds->current)
601 free_demux_packet(ds->current);
602 ds->current = NULL;
603 if (mp_msg_test(MSGT_DEMUXER, MSGL_DBG3)) {
604 if (ds == demux->audio)
605 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
606 "ds_fill_buffer(d_audio) called\n");
607 else if (ds == demux->video)
608 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
609 "ds_fill_buffer(d_video) called\n");
610 else if (ds == demux->sub)
611 mp_dbg(MSGT_DEMUXER, MSGL_DBG3, "ds_fill_buffer(d_sub) called\n");
612 else
613 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
614 "ds_fill_buffer(unknown 0x%X) called\n", (unsigned int) ds);
615 }
616 while (1) {
617 if (ds->packs) {
618 demux_packet_t *p = ds->first;
619 #if 0
620 if (demux->reference_clock != MP_NOPTS_VALUE) {
621 if ( p->pts != MP_NOPTS_VALUE
622 && p->pts > demux->reference_clock
623 && ds->packs < MAX_ACUMULATED_PACKETS) {
624 if (demux_fill_buffer(demux, ds))
625 continue;
626 }
627 }
628 #endif
629 // copy useful data:
630 ds->buffer = p->buffer;
631 ds->buffer_pos = 0;
632 ds->buffer_size = p->len;
633 ds->pos = p->pos;
634 ds->dpos += p->len; // !!!
635 ++ds->pack_no;
636 if (p->pts != MP_NOPTS_VALUE) {
637 ds->pts = p->pts;
638 ds->pts_bytes = 0;
639 }
640 ds->pts_bytes += p->len; // !!!
641 if (p->stream_pts != MP_NOPTS_VALUE)
642 demux->stream_pts = p->stream_pts;
643 ds->flags = p->flags;
644 // unlink packet:
645 ds->bytes -= p->len;
646 ds->current = p;
647 ds->first = p->next;
648 if (!ds->first)
649 ds->last = NULL;
650 --ds->packs;
651 /* The code below can set ds->eof to 1 when another stream runs
652 * out of buffer space. That makes sense because in that situation
653 * the calling code should not count on being able to demux more
654 * packets from this stream.
655 * If however the situation improves and we're called again
656 * despite the eof flag then it's better to clear it to avoid
657 * weird behavior. */
658 ds->eof = 0;
659 return 1;
660 }
661
662 #define MaybeNI _("Maybe you are playing a non-interleaved stream/file or the codec failed?\n" \
663 "For AVI files, try to force non-interleaved mode with the -ni option.\n")
664
665 if (demux->audio->packs >= MAX_PACKS
666 || demux->audio->bytes >= MAX_PACK_BYTES) {
667 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
668 demux->audio->packs, demux->audio->bytes);
669 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
670 break;
671 }
672 if (demux->video->packs >= MAX_PACKS
673 || demux->video->bytes >= MAX_PACK_BYTES) {
674 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
675 demux->video->packs, demux->video->bytes);
676 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
677 break;
678 }
679 if (!demux_fill_buffer(demux, ds)) {
680 #if PARSE_ON_ADD && defined(CONFIG_FFMPEG)
681 uint8_t *parsed_start = NULL;
682 int parsed_len = 0;
683 ds_parse(ds->sh, &parsed_start, &parsed_len, MP_NOPTS_VALUE, 0);
684 if (parsed_len) {
685 demux_packet_t *dp2 = new_demux_packet(parsed_len);
686 dp2->pts = MP_NOPTS_VALUE;
687 memcpy(dp2->buffer, parsed_start, parsed_len);
688 ds_add_packet_internal(ds, dp2);
689 continue;
690 }
691 #endif
692 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
693 "ds_fill_buffer()->demux_fill_buffer() failed\n");
694 break; // EOF
695 }
696 }
697 ds->buffer_pos = ds->buffer_size = 0;
698 ds->buffer = NULL;
699 mp_msg(MSGT_DEMUXER, MSGL_V,
700 "ds_fill_buffer: EOF reached (stream: %s) \n",
701 ds == demux->audio ? "audio" : "video");
702 ds->eof = 1;
703 return 0;
704 }
705
706 int demux_read_data(demux_stream_t *ds, unsigned char *mem, int len)
707 {
708 int x;
709 int bytes = 0;
710 while (len > 0) {
711 x = ds->buffer_size - ds->buffer_pos;
712 if (x == 0) {
713 if (!ds_fill_buffer(ds))
714 return bytes;
715 } else {
716 if (x > len)
717 x = len;
718 if (mem)
719 fast_memcpy(mem + bytes, &ds->buffer[ds->buffer_pos], x);
720 bytes += x;
721 len -= x;
722 ds->buffer_pos += x;
723 }
724 }
725 return bytes;
726 }
727
728 /**
729 * \brief read data until the given 3-byte pattern is encountered, up to maxlen
730 * \param mem memory to read data into, may be NULL to discard data
731 * \param maxlen maximum number of bytes to read
732 * \param read number of bytes actually read
733 * \param pattern pattern to search for (lowest 8 bits are ignored)
734 * \return whether pattern was found
735 */
736 int demux_pattern_3(demux_stream_t *ds, unsigned char *mem, int maxlen,
737 int *read, uint32_t pattern)
738 {
739 register uint32_t head = 0xffffff00;
740 register uint32_t pat = pattern & 0xffffff00;
741 int total_len = 0;
742 do {
743 register unsigned char *ds_buf = &ds->buffer[ds->buffer_size];
744 int len = ds->buffer_size - ds->buffer_pos;
745 register long pos = -len;
746 if (unlikely(pos >= 0)) { // buffer is empty
747 ds_fill_buffer(ds);
748 continue;
749 }
750 do {
751 head |= ds_buf[pos];
752 head <<= 8;
753 } while (++pos && head != pat);
754 len += pos;
755 if (total_len + len > maxlen)
756 len = maxlen - total_len;
757 len = demux_read_data(ds, mem ? &mem[total_len] : NULL, len);
758 total_len += len;
759 } while ((head != pat || total_len < 3) && total_len < maxlen && !ds->eof);
760 if (read)
761 *read = total_len;
762 return total_len >= 3 && head == pat;
763 }
764
765 void ds_free_packs(demux_stream_t *ds)
766 {
767 demux_packet_t *dp = ds->first;
768 while (dp) {
769 demux_packet_t *dn = dp->next;
770 free_demux_packet(dp);
771 dp = dn;
772 }
773 if (ds->asf_packet) {
774 // free unfinished .asf fragments:
775 free(ds->asf_packet->buffer);
776 free(ds->asf_packet);
777 ds->asf_packet = NULL;
778 }
779 ds->first = ds->last = NULL;
780 ds->packs = 0; // !!!!!
781 ds->bytes = 0;
782 if (ds->current)
783 free_demux_packet(ds->current);
784 ds->current = NULL;
785 ds->buffer = NULL;
786 ds->buffer_pos = ds->buffer_size;
787 ds->pts = 0;
788 ds->pts_bytes = 0;
789 }
790
791 int ds_get_packet(demux_stream_t *ds, unsigned char **start)
792 {
793 int len;
794 if (ds->buffer_pos >= ds->buffer_size) {
795 if (!ds_fill_buffer(ds)) {
796 // EOF
797 *start = NULL;
798 return -1;
799 }
800 }
801 len = ds->buffer_size - ds->buffer_pos;
802 *start = &ds->buffer[ds->buffer_pos];
803 ds->buffer_pos += len;
804 return len;
805 }
806
807 int ds_get_packet_pts(demux_stream_t *ds, unsigned char **start, double *pts)
808 {
809 int len;
810 *pts = MP_NOPTS_VALUE;
811 len = ds_get_packet(ds, start);
812 if (len < 0)
813 return len;
814 // Return pts unless this read starts from the middle of a packet
815 if (len == ds->buffer_pos)
816 *pts = ds->current->pts;
817 return len;
818 }
819
820 int ds_get_packet_sub(demux_stream_t *ds, unsigned char **start)
821 {
822 int len;
823 if (ds->buffer_pos >= ds->buffer_size) {
824 *start = NULL;
825 if (!ds->packs)
826 return -1; // no sub
827 if (!ds_fill_buffer(ds))
828 return -1; // EOF
829 }
830 len = ds->buffer_size - ds->buffer_pos;
831 *start = &ds->buffer[ds->buffer_pos];
832 ds->buffer_pos += len;
833 return len;
834 }
835
836 double ds_get_next_pts(demux_stream_t *ds)
837 {
838 demuxer_t *demux = ds->demuxer;
839 // if we have not read from the "current" packet, consider it
840 // as the next, otherwise we never get the pts for the first packet.
841 while (!ds->first && (!ds->current || ds->buffer_pos)) {
842 if (demux->audio->packs >= MAX_PACKS
843 || demux->audio->bytes >= MAX_PACK_BYTES) {
844 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
845 demux->audio->packs, demux->audio->bytes);
846 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
847 return MP_NOPTS_VALUE;
848 }
849 if (demux->video->packs >= MAX_PACKS
850 || demux->video->bytes >= MAX_PACK_BYTES) {
851 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
852 demux->video->packs, demux->video->bytes);
853 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
854 return MP_NOPTS_VALUE;
855 }
856 if (!demux_fill_buffer(demux, ds))
857 return MP_NOPTS_VALUE;
858 }
859 // take pts from "current" if we never read from it.
860 if (ds->current && !ds->buffer_pos)
861 return ds->current->pts;
862 return ds->first->pts;
863 }
864
865 // ====================================================================
866
867 void demuxer_help(void)
868 {
869 int i;
870
871 mp_msg(MSGT_DEMUXER, MSGL_INFO, "Available demuxers:\n");
872 mp_msg(MSGT_DEMUXER, MSGL_INFO, " demuxer: type info: (comment)\n");
873 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DEMUXERS\n");
874 for (i = 0; demuxer_list[i]; i++) {
875 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Don't display special demuxers
876 continue;
877 if (demuxer_list[i]->comment && strlen(demuxer_list[i]->comment))
878 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s (%s)\n",
879 demuxer_list[i]->name, demuxer_list[i]->type,
880 demuxer_list[i]->info, demuxer_list[i]->comment);
881 else
882 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s\n",
883 demuxer_list[i]->name, demuxer_list[i]->type,
884 demuxer_list[i]->info);
885 }
886 }
887
888
889 /**
890 * Get demuxer type for a given demuxer name
891 *
892 * @param demuxer_name string with demuxer name of demuxer number
893 * @param force will be set if demuxer should be forced.
894 * May be NULL.
895 * @return DEMUXER_TYPE_xxx, -1 if error or not found
896 */
897 int get_demuxer_type_from_name(char *demuxer_name, int *force)
898 {
899 int i;
900 long type_int;
901 char *endptr;
902
903 if (!demuxer_name || !demuxer_name[0])
904 return DEMUXER_TYPE_UNKNOWN;
905 if (force)
906 *force = demuxer_name[0] == '+';
907 if (demuxer_name[0] == '+')
908 demuxer_name = &demuxer_name[1];
909 for (i = 0; demuxer_list[i]; i++) {
910 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Can't select special demuxers from commandline
911 continue;
912 if (strcmp(demuxer_name, demuxer_list[i]->name) == 0)
913 return demuxer_list[i]->type;
914 }
915
916 // No match found, try to parse name as an integer (demuxer number)
917 type_int = strtol(demuxer_name, &endptr, 0);
918 if (*endptr) // Conversion failed
919 return -1;
920 if ((type_int > 0) && (type_int <= DEMUXER_TYPE_MAX))
921 return (int) type_int;
922
923 return -1;
924 }
925
926 static struct demuxer *open_given_type(struct MPOpts *opts,
927 const struct demuxer_desc *desc,
928 struct stream *stream, bool force,
929 int audio_id, int video_id, int sub_id,
930 char *filename)
931 {
932 struct demuxer *demuxer;
933 int fformat;
934 demuxer = new_demuxer(opts, stream, desc->type, audio_id,
935 video_id, sub_id, filename);
936 if (desc->check_file)
937 fformat = desc->check_file(demuxer);
938 else
939 fformat = desc->type;
940 if (force)
941 fformat = desc->type;
942 if (fformat == 0)
943 goto fail;
944 if (fformat == desc->type) {
945 if (demuxer->filetype)
946 mp_tmsg(MSGT_DEMUXER, MSGL_INFO, "Detected file format: %s (%s)\n",
947 demuxer->filetype, desc->shortdesc);
948 else
949 mp_tmsg(MSGT_DEMUXER, MSGL_INFO, "Detected file format: %s\n",
950 desc->shortdesc);
951 if (demuxer->desc->open) {
952 struct demuxer *demux2 = demuxer->desc->open(demuxer);
953 if (!demux2) {
954 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Opening as detected format "
955 "\"%s\" failed.\n", desc->shortdesc);
956 goto fail;
957 }
958 /* At least demux_mov can return a demux_demuxers instance
959 * from open() instead of the original fed in. */
960 demuxer = demux2;
961 }
962 demuxer->file_format = fformat;
963 return demuxer;
964 } else {
965 // demux_mov can return playlist instead of mov
966 if (fformat == DEMUXER_TYPE_PLAYLIST)
967 return demuxer; // handled in mplayer.c
968 /* Internal MPEG PS demuxer check can return other MPEG subtypes
969 * which don't have their own checks; recurse to try opening as
970 * the returned type instead. */
971 free_demuxer(demuxer);
972 desc = get_demuxer_desc_from_type(fformat);
973 if (!desc) {
974 mp_msg(MSGT_DEMUXER, MSGL_ERR,
975 "BUG: recursion to nonexistent file format\n");
976 return NULL;
977 }
978 return open_given_type(opts, desc, stream, false, audio_id,
979 video_id, sub_id, filename);
980 }
981 fail:
982 free_demuxer(demuxer);
983 return NULL;
984 }
985
986 static struct demuxer *demux_open_stream(struct MPOpts *opts,
987 struct stream *stream,
988 int file_format, bool force,
989 int audio_id, int video_id, int sub_id,
990 char *filename)
991 {
992 struct demuxer *demuxer = NULL;
993 const struct demuxer_desc *desc;
994
995 // If somebody requested a demuxer check it
996 if (file_format) {
997 desc = get_demuxer_desc_from_type(file_format);
998 if (!desc)
999 // should only happen with obsolete -demuxer 99 numeric format
1000 return NULL;
1001 demuxer = open_given_type(opts, desc, stream, force, audio_id,
1002 video_id, sub_id, filename);
1003 if (demuxer)
1004 goto dmx_open;
1005 return NULL;
1006 }
1007
1008 // Test demuxers with safe file checks
1009 for (int i = 0; (desc = demuxer_list[i]); i++) {
1010 if (desc->safe_check) {
1011 demuxer = open_given_type(opts, desc, stream, false, audio_id,
1012 video_id, sub_id, filename);
1013 if (demuxer)
1014 goto dmx_open;
1015 }
1016 }
1017
1018 // Ok. We're over the stable detectable fileformats, the next ones are
1019 // a bit fuzzy. So by default (extension_parsing==1) try extension-based
1020 // detection first:
1021 if (filename && opts->extension_parsing == 1) {
1022 desc = get_demuxer_desc_from_type(demuxer_type_by_filename(filename));
1023 if (desc)
1024 demuxer = open_given_type(opts, desc, stream, false, audio_id,
1025 video_id, sub_id, filename);
1026 if (demuxer)
1027 goto dmx_open;
1028 }
1029
1030 // Finally try detection for demuxers with unsafe checks
1031 for (int i = 0; (desc = demuxer_list[i]); i++) {
1032 if (!desc->safe_check && desc->check_file) {
1033 demuxer = open_given_type(opts, desc, stream, false, audio_id,
1034 video_id, sub_id, filename);
1035 if (demuxer)
1036 goto dmx_open;
1037 }
1038 }
1039
1040 return NULL;
1041
1042 dmx_open:
1043
1044 if (demuxer->type == DEMUXER_TYPE_PLAYLIST)
1045 return demuxer;
1046
1047 struct sh_video *sh_video = demuxer->video->sh;
1048 if (sh_video && sh_video->bih) {
1049 int biComp = le2me_32(sh_video->bih->biCompression);
1050 mp_msg(MSGT_DEMUX, MSGL_INFO,
1051 "VIDEO: [%.4s] %dx%d %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
1052 (char *) &biComp, sh_video->bih->biWidth,
1053 sh_video->bih->biHeight, sh_video->bih->biBitCount,
1054 sh_video->fps, sh_video->i_bps * 0.008f,
1055 sh_video->i_bps / 1024.0f);
1056 }
1057 #ifdef CONFIG_ASS
1058 if (opts->ass_enabled && ass_library) {
1059 for (int i = 0; i < MAX_S_STREAMS; ++i) {
1060 sh_sub_t *sh = demuxer->s_streams[i];
1061 if (sh && sh->type == 'a') {
1062 sh->ass_track = ass_new_track(ass_library);
1063 if (sh->ass_track && sh->extradata)
1064 ass_process_codec_private(sh->ass_track, sh->extradata,
1065 sh->extradata_len);
1066 } else if (sh && sh->type != 'v')
1067 sh->ass_track = ass_default_track(ass_library);
1068 }
1069 }
1070 #endif
1071 return demuxer;
1072 }
1073
1074 demuxer_t *demux_open(struct MPOpts *opts, stream_t *vs, int file_format,
1075 int audio_id, int video_id, int dvdsub_id,
1076 char *filename)
1077 {
1078 stream_t *as = NULL, *ss = NULL;
1079 demuxer_t *vd, *ad = NULL, *sd = NULL;
1080 demuxer_t *res;
1081 int afmt = DEMUXER_TYPE_UNKNOWN, sfmt = DEMUXER_TYPE_UNKNOWN;
1082 int demuxer_type;
1083 int audio_demuxer_type = 0, sub_demuxer_type = 0;
1084 int demuxer_force = 0, audio_demuxer_force = 0, sub_demuxer_force = 0;
1085
1086 if ((demuxer_type =
1087 get_demuxer_type_from_name(opts->demuxer_name, &demuxer_force)) < 0) {
1088 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-demuxer %s does not exist.\n",
1089 opts->demuxer_name);
1090 return NULL;
1091 }
1092 if ((audio_demuxer_type =
1093 get_demuxer_type_from_name(opts->audio_demuxer_name,
1094 &audio_demuxer_force)) < 0) {
1095 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-audio-demuxer %s does not exist.\n",
1096 opts->audio_demuxer_name);
1097 if (opts->audio_stream)
1098 return NULL;
1099 }
1100 if ((sub_demuxer_type =
1101 get_demuxer_type_from_name(opts->sub_demuxer_name,
1102 &sub_demuxer_force)) < 0) {
1103 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-sub-demuxer %s does not exist.\n",
1104 opts->sub_demuxer_name);
1105 if (opts->sub_stream)
1106 return NULL;
1107 }
1108
1109 if (opts->audio_stream) {
1110 as = open_stream(opts->audio_stream, 0, &afmt);
1111 if (!as) {
1112 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open audio stream: %s\n",
1113 opts->audio_stream);
1114 return NULL;
1115 }
1116 if (opts->audio_stream_cache) {
1117 if (!stream_enable_cache
1118 (as, opts->audio_stream_cache * 1024,
1119 opts->audio_stream_cache * 1024 *
1120 (opts->stream_cache_min_percent / 100.0),
1121 opts->audio_stream_cache * 1024 *
1122 (opts->stream_cache_seek_min_percent / 100.0))) {
1123 free_stream(as);
1124 mp_msg(MSGT_DEMUXER, MSGL_ERR,
1125 "Can't enable audio stream cache\n");
1126 return NULL;
1127 }
1128 }
1129 }
1130 if (opts->sub_stream) {
1131 ss = open_stream(opts->sub_stream, 0, &sfmt);
1132 if (!ss) {
1133 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open subtitle stream: %s\n",
1134 opts->sub_stream);
1135 return NULL;
1136 }
1137 }
1138
1139 vd = demux_open_stream(opts, vs, demuxer_type ? demuxer_type : file_format,
1140 demuxer_force, opts->audio_stream ? -2 : audio_id,
1141 video_id, opts->sub_stream ? -2 : dvdsub_id, filename);
1142 if (!vd) {
1143 if (as)
1144 free_stream(as);
1145 if (ss)
1146 free_stream(ss);
1147 return NULL;
1148 }
1149 if (as) {
1150 ad = demux_open_stream(opts, as,
1151 audio_demuxer_type ? audio_demuxer_type : afmt,
1152 audio_demuxer_force, audio_id, -2, -2,
1153 opts->audio_stream);
1154 if (!ad) {
1155 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "Failed to open audio demuxer: %s\n",
1156 opts->audio_stream);
1157 free_stream(as);
1158 } else if (ad->audio->sh
1159 && ((sh_audio_t *) ad->audio->sh)->format == 0x55) // MP3
1160 opts->hr_mp3_seek = 1; // Enable high res seeking
1161 }
1162 if (ss) {
1163 sd = demux_open_stream(opts, ss,
1164 sub_demuxer_type ? sub_demuxer_type : sfmt,
1165 sub_demuxer_force, -2, -2, dvdsub_id,
1166 opts->sub_stream);
1167 if (!sd) {
1168 mp_tmsg(MSGT_DEMUXER, MSGL_WARN,
1169 "Failed to open subtitle demuxer: %s\n", opts->sub_stream);
1170 free_stream(ss);
1171 }
1172 }
1173
1174 if (ad && sd)
1175 res = new_demuxers_demuxer(vd, ad, sd);
1176 else if (ad)
1177 res = new_demuxers_demuxer(vd, ad, vd);
1178 else if (sd)
1179 res = new_demuxers_demuxer(vd, vd, sd);
1180 else
1181 res = vd;
1182
1183 opts->correct_pts = opts->user_correct_pts;
1184 if (opts->correct_pts < 0)
1185 opts->correct_pts =
1186 demux_control(vd ? vd : res, DEMUXER_CTRL_CORRECT_PTS,
1187 NULL) == DEMUXER_CTRL_OK;
1188 return res;
1189 }
1190
1191
1192 void demux_flush(demuxer_t *demuxer)
1193 {
1194 #if PARSE_ON_ADD
1195 ds_clear_parser(demuxer->video);
1196 ds_clear_parser(demuxer->audio);
1197 ds_clear_parser(demuxer->sub);
1198 #endif
1199 ds_free_packs(demuxer->video);
1200 ds_free_packs(demuxer->audio);
1201 ds_free_packs(demuxer->sub);
1202 }
1203
1204 int demux_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay,
1205 int flags)
1206 {
1207 if (!demuxer->seekable) {
1208 if (demuxer->file_format == DEMUXER_TYPE_AVI)
1209 mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in raw AVI streams. (Index required, try with the -idx switch.)\n");
1210 #ifdef CONFIG_TV
1211 else if (demuxer->file_format == DEMUXER_TYPE_TV)
1212 mp_tmsg(MSGT_SEEK, MSGL_WARN, "TV input is not seekable! (Seeking will probably be for changing channels ;)\n");
1213 #endif
1214 else
1215 mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in this file.\n");
1216 return 0;
1217 }
1218 // clear demux buffers:
1219 demux_flush(demuxer);
1220 demuxer->video->eof = 0;
1221 demuxer->audio->eof = 0;
1222 demuxer->sub->eof = 0;
1223
1224 /* HACK: assume any demuxer used with these streams can cope with
1225 * the stream layer suddenly seeking to a different position under it
1226 * (nothing actually implements DEMUXER_CTRL_RESYNC now).
1227 */
1228 struct stream *stream = demuxer->stream;
1229 if (stream->type == STREAMTYPE_DVD || stream->type == STREAMTYPE_DVDNAV) {
1230 double pts;
1231
1232 if (flags & SEEK_ABSOLUTE)
1233 pts = 0.0f;
1234 else {
1235 if (demuxer->stream_pts == MP_NOPTS_VALUE)
1236 goto dmx_seek;
1237 pts = demuxer->stream_pts;
1238 }
1239
1240 if (flags & SEEK_FACTOR) {
1241 double tmp = 0;
1242 if (stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH,
1243 &tmp) == STREAM_UNSUPPORTED)
1244 goto dmx_seek;
1245 pts += tmp * rel_seek_secs;
1246 } else
1247 pts += rel_seek_secs;
1248
1249 if (stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, &pts)
1250 != STREAM_UNSUPPORTED) {
1251 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1252 return 1;
1253 }
1254 }
1255
1256 dmx_seek:
1257 if (demuxer->desc->seek)
1258 demuxer->desc->seek(demuxer, rel_seek_secs, audio_delay, flags);
1259
1260 return 1;
1261 }
1262
1263 int demux_info_add(demuxer_t *demuxer, const char *opt, const char *param)
1264 {
1265 return demux_info_add_bstr(demuxer, BSTR(opt), BSTR(param));
1266 }
1267
1268 int demux_info_add_bstr(demuxer_t *demuxer, struct bstr opt, struct bstr param)
1269 {
1270 char **info = demuxer->info;
1271 int n = 0;
1272
1273
1274 for (n = 0; info && info[2 * n] != NULL; n++) {
1275 if (!bstrcasecmp(opt, BSTR(info[2*n]))) {
1276 if (!bstrcmp(param, BSTR(info[2*n + 1]))) {
1277 mp_msg(MSGT_DEMUX, MSGL_V, "Demuxer info %.*s set to unchanged value %.*s\n",
1278 BSTR_P(opt), BSTR_P(param));
1279 return 0;
1280 }
1281 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Demuxer info %.*s changed to %.*s\n",
1282 BSTR_P(opt), BSTR_P(param));
1283 talloc_free(info[2*n + 1]);
1284 info[2*n + 1] = talloc_strndup(demuxer->info, param.start, param.len);
1285 return 0;
1286 }
1287 }
1288
1289 info = demuxer->info = talloc_realloc(demuxer, info, char *, 2 * (n + 2));
1290 info[2*n] = talloc_strndup(demuxer->info, opt.start, opt.len);
1291 info[2*n + 1] = talloc_strndup(demuxer->info, param.start, param.len);
1292 memset(&info[2 * (n + 1)], 0, 2 * sizeof(char *));
1293
1294 return 1;
1295 }
1296
1297 int demux_info_print(demuxer_t *demuxer)
1298 {
1299 char **info = demuxer->info;
1300 int n;
1301
1302 if (!info)
1303 return 0;
1304
1305 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Clip info:\n");
1306 for (n = 0; info[2 * n] != NULL; n++) {
1307 mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n", info[2 * n],
1308 info[2 * n + 1]);
1309 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n,
1310 info[2 * n]);
1311 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n,
1312 info[2 * n + 1]);
1313 }
1314 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
1315
1316 return 0;
1317 }
1318
1319 char *demux_info_get(demuxer_t *demuxer, const char *opt)
1320 {
1321 int i;
1322 char **info = demuxer->info;
1323
1324 for (i = 0; info && info[2 * i] != NULL; i++) {
1325 if (!strcasecmp(opt, info[2 * i]))
1326 return info[2 * i + 1];
1327 }
1328
1329 return NULL;
1330 }
1331
1332 int demux_control(demuxer_t *demuxer, int cmd, void *arg)
1333 {
1334
1335 if (demuxer->desc->control)
1336 return demuxer->desc->control(demuxer, cmd, arg);
1337
1338 return DEMUXER_CTRL_NOTIMPL;
1339 }
1340
1341 int demuxer_switch_audio(demuxer_t *demuxer, int index)
1342 {
1343 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &index);
1344 if (res == DEMUXER_CTRL_NOTIMPL) {
1345 struct sh_audio *sh_audio = demuxer->audio->sh;
1346 return sh_audio ? sh_audio->aid : -2;
1347 }
1348 if (demuxer->audio->id >= 0) {
1349 struct sh_audio *sh_audio = demuxer->a_streams[demuxer->audio->id];
1350 demuxer->audio->sh = sh_audio;
1351 index = sh_audio->aid; // internal MPEG demuxers don't set it right
1352 }
1353 else
1354 demuxer->audio->sh = NULL;
1355 return index;
1356 }
1357
1358 int demuxer_switch_video(demuxer_t *demuxer, int index)
1359 {
1360 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_VIDEO, &index);
1361 if (res == DEMUXER_CTRL_NOTIMPL)
1362 index = demuxer->video->id;
1363 if (demuxer->video->id >= 0)
1364 demuxer->video->sh = demuxer->v_streams[demuxer->video->id];
1365 else
1366 demuxer->video->sh = NULL;
1367 return index;
1368 }
1369
1370 int demuxer_add_attachment(demuxer_t *demuxer, struct bstr name,
1371 struct bstr type, struct bstr data)
1372 {
1373 if (!(demuxer->num_attachments % 32))
1374 demuxer->attachments = talloc_realloc(demuxer, demuxer->attachments,
1375 struct demux_attachment,
1376 demuxer->num_attachments + 32);
1377
1378 struct demux_attachment *att =
1379 demuxer->attachments + demuxer->num_attachments;
1380 att->name = talloc_strndup(demuxer->attachments, name.start, name.len);
1381 att->type = talloc_strndup(demuxer->attachments, type.start, type.len);
1382 att->data = talloc_size(demuxer->attachments, data.len);
1383 memcpy(att->data, data.start, data.len);
1384 att->data_size = data.len;
1385
1386 return demuxer->num_attachments++;
1387 }
1388
1389 int demuxer_add_chapter(demuxer_t *demuxer, struct bstr name,
1390 uint64_t start, uint64_t end)
1391 {
1392 if (!(demuxer->num_chapters % 32))
1393 demuxer->chapters = talloc_realloc(demuxer, demuxer->chapters,
1394 struct demux_chapter,
1395 demuxer->num_chapters + 32);
1396
1397 demuxer->chapters[demuxer->num_chapters].start = start;
1398 demuxer->chapters[demuxer->num_chapters].end = end;
1399 demuxer->chapters[demuxer->num_chapters].name = name.len ?
1400 talloc_strndup(demuxer->chapters, name.start, name.len) :
1401 talloc_strdup(demuxer->chapters, mp_gtext("unknown"));
1402
1403 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_ID=%d\n", demuxer->num_chapters);
1404 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_START=%"PRIu64"\n", demuxer->num_chapters, start);
1405 if (end)
1406 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_END=%"PRIu64"\n", demuxer->num_chapters, end);
1407 if (name.start)
1408 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_NAME=%.*s\n", demuxer->num_chapters, BSTR_P(name));
1409
1410 return demuxer->num_chapters++;
1411 }
1412
1413 /**
1414 * \brief demuxer_seek_chapter() seeks to a chapter in two possible ways:
1415 * either using the demuxer->chapters structure set by the demuxer
1416 * or asking help to the stream layer (e.g. dvd)
1417 * \param chapter - chapter number wished - 0-based
1418 * \param seek_pts set by the function to the pts to seek to (if demuxer->chapters is set)
1419 * \param chapter_name name of chapter found (set by this function is param is not null)
1420 * \return -1 on error, current chapter if successful
1421 */
1422
1423 int demuxer_seek_chapter(demuxer_t *demuxer, int chapter, double *seek_pts,
1424 char **chapter_name)
1425 {
1426 int ris;
1427
1428 if (!demuxer->num_chapters || !demuxer->chapters) {
1429 demux_flush(demuxer);
1430
1431 ris = stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_CHAPTER,
1432 &chapter);
1433 if (ris != STREAM_UNSUPPORTED)
1434 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1435
1436 // exit status may be ok, but main() doesn't have to seek itself
1437 // (because e.g. dvds depend on sectors, not on pts)
1438 *seek_pts = -1.0;
1439
1440 if (chapter_name) {
1441 *chapter_name = NULL;
1442 int num_chapters;
1443 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1444 &num_chapters) == STREAM_UNSUPPORTED)
1445 num_chapters = 0;
1446 if (num_chapters) {
1447 *chapter_name = talloc_size(NULL, 16);
1448 sprintf(*chapter_name, " of %3d", num_chapters);
1449 }
1450 }
1451
1452 return ris != STREAM_UNSUPPORTED ? chapter : -1;
1453 } else { // chapters structure is set in the demuxer
1454 if (chapter >= demuxer->num_chapters)
1455 return -1;
1456 if (chapter < 0)
1457 chapter = 0;
1458
1459 *seek_pts = demuxer->chapters[chapter].start / 1000.0;
1460
1461 if (chapter_name)
1462 *chapter_name = talloc_strdup(NULL, demuxer->chapters[chapter].name);
1463
1464 return chapter;
1465 }
1466 }
1467
1468 int demuxer_get_current_chapter(demuxer_t *demuxer, double time_now)
1469 {
1470 int chapter = -2;
1471 if (!demuxer->num_chapters || !demuxer->chapters) {
1472 if (stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_CHAPTER,
1473 &chapter) == STREAM_UNSUPPORTED)
1474 chapter = -2;
1475 } else {
1476 uint64_t now = time_now * 1000 + 0.5;
1477 for (chapter = demuxer->num_chapters - 1; chapter >= 0; --chapter) {
1478 if (demuxer->chapters[chapter].start <= now)
1479 break;
1480 }
1481 }
1482 return chapter;
1483 }
1484
1485 char *demuxer_chapter_name(demuxer_t *demuxer, int chapter)
1486 {
1487 if (demuxer->num_chapters && demuxer->chapters) {
1488 if (chapter >= 0 && chapter < demuxer->num_chapters
1489 && demuxer->chapters[chapter].name)
1490 return strdup(demuxer->chapters[chapter].name);
1491 }
1492 return NULL;
1493 }
1494
1495 char *demuxer_chapter_display_name(demuxer_t *demuxer, int chapter)
1496 {
1497 char *chapter_name = demuxer_chapter_name(demuxer, chapter);
1498 if (chapter_name) {
1499 char *tmp = malloc(strlen(chapter_name) + 14);
1500 snprintf(tmp, 63, "(%d) %s", chapter + 1, chapter_name);
1501 free(chapter_name);
1502 return tmp;
1503 } else {
1504 int chapter_num = demuxer_chapter_count(demuxer);
1505 char tmp[30];
1506 if (chapter_num <= 0)
1507 sprintf(tmp, "(%d)", chapter + 1);
1508 else
1509 sprintf(tmp, "(%d) of %d", chapter + 1, chapter_num);
1510 return strdup(tmp);
1511 }
1512 }
1513
1514 float demuxer_chapter_time(demuxer_t *demuxer, int chapter, float *end)
1515 {
1516 if (demuxer->num_chapters && demuxer->chapters && chapter >= 0
1517 && chapter < demuxer->num_chapters) {
1518 if (end)
1519 *end = demuxer->chapters[chapter].end / 1000.0;
1520 return demuxer->chapters[chapter].start / 1000.0;
1521 }
1522 return -1.0;
1523 }
1524
1525 int demuxer_chapter_count(demuxer_t *demuxer)
1526 {
1527 if (!demuxer->num_chapters || !demuxer->chapters) {
1528 int num_chapters = 0;
1529 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1530 &num_chapters) == STREAM_UNSUPPORTED)
1531 num_chapters = 0;
1532 return num_chapters;
1533 } else
1534 return demuxer->num_chapters;
1535 }
1536
1537 int demuxer_angles_count(demuxer_t *demuxer)
1538 {
1539 int ris, angles = -1;
1540
1541 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_ANGLES, &angles);
1542 if (ris == STREAM_UNSUPPORTED)
1543 return -1;
1544 return angles;
1545 }
1546
1547 int demuxer_get_current_angle(demuxer_t *demuxer)
1548 {
1549 int ris, curr_angle = -1;
1550 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_ANGLE, &curr_angle);
1551 if (ris == STREAM_UNSUPPORTED)
1552 return -1;
1553 return curr_angle;
1554 }
1555
1556
1557 int demuxer_set_angle(demuxer_t *demuxer, int angle)
1558 {
1559 int ris, angles = -1;
1560
1561 angles = demuxer_angles_count(demuxer);
1562 if ((angles < 1) || (angle > angles))
1563 return -1;
1564
1565 demux_flush(demuxer);
1566
1567 ris = stream_control(demuxer->stream, STREAM_CTRL_SET_ANGLE, &angle);
1568 if (ris == STREAM_UNSUPPORTED)
1569 return -1;
1570
1571 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1572
1573 return angle;
1574 }
1575
1576 int demuxer_audio_track_by_lang_and_default(struct demuxer *d, char *lang)
1577 {
1578 if (!lang)
1579 lang = "";
1580 while (1) {
1581 lang += strspn(lang, ",");
1582 int len = strcspn(lang, ",");
1583 int id = -1;
1584 for (int i = 0; i < MAX_A_STREAMS; i++) {
1585 struct sh_audio *sh = d->a_streams[i];
1586 if (sh && (!len || sh->lang && strlen(sh->lang) == len &&
1587 !memcmp(lang, sh->lang, len))) {
1588 if (sh->default_track)
1589 return sh->aid;
1590 if (id < 0)
1591 id = sh->aid;
1592 }
1593 }
1594 if (id >= 0)
1595 return id;
1596 if (!len)
1597 return -1;
1598 lang += len;
1599 }
1600 }
1601
1602 int demuxer_sub_track_by_lang_and_default(struct demuxer *d, char *lang)
1603 {
1604 if (!lang)
1605 lang = "";
1606 while (1) {
1607 lang += strspn(lang, ",");
1608 int len = strcspn(lang, ",");
1609 int id = -1;
1610 for (int i = 0; i < MAX_S_STREAMS; i++) {
1611 struct sh_sub *sh = d->s_streams[i];
1612 if (sh && (!len || sh->lang && strlen(sh->lang) == len &&
1613 !memcmp(lang, sh->lang, len))) {
1614 if (sh->default_track)
1615 return sh->sid;
1616 if (id < 0)
1617 id = sh->sid;
1618 }
1619 }
1620 if (!len)
1621 return -1;
1622 if (id >= 0)
1623 return id;
1624 lang += len;
1625 }
1626 }
mplayer with SMedia Glamo drivers