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vo_gl: Make it possible to select GL_NEAREST scaling
[mplayer/glamo.git] / libmpdemux / demuxer.c
blobfb4ea3cd760a7a32b3bd4f444532bb446ec5c33d
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
45 #include "ass_mp.h"
46
47 #ifdef CONFIG_LIBAVCODEC
48 #include "libavcodec/avcodec.h"
49 #if MP_INPUT_BUFFER_PADDING_SIZE < FF_INPUT_BUFFER_PADDING_SIZE
50 #error MP_INPUT_BUFFER_PADDING_SIZE is too small!
51 #endif
52 #endif
53
54 // This is quite experimental, in particular it will mess up the pts values
55 // in the queue - on the other hand it might fix some issues like generating
56 // broken files with mencoder and stream copy.
57 // Better leave it disabled for now, if we find no use for it this code should
58 // just be removed again.
59 #define PARSE_ON_ADD 0
60
61 static void clear_parser(sh_common_t *sh);
62
63 // Demuxer list
64 extern const demuxer_desc_t demuxer_desc_rawaudio;
65 extern const demuxer_desc_t demuxer_desc_rawvideo;
66 extern const demuxer_desc_t demuxer_desc_tv;
67 extern const demuxer_desc_t demuxer_desc_mf;
68 extern const demuxer_desc_t demuxer_desc_avi;
69 extern const demuxer_desc_t demuxer_desc_y4m;
70 extern const demuxer_desc_t demuxer_desc_asf;
71 extern const demuxer_desc_t demuxer_desc_real;
72 extern const demuxer_desc_t demuxer_desc_smjpeg;
73 extern const demuxer_desc_t demuxer_desc_matroska;
74 extern const demuxer_desc_t demuxer_desc_realaudio;
75 extern const demuxer_desc_t demuxer_desc_vqf;
76 extern const demuxer_desc_t demuxer_desc_mov;
77 extern const demuxer_desc_t demuxer_desc_vivo;
78 extern const demuxer_desc_t demuxer_desc_fli;
79 extern const demuxer_desc_t demuxer_desc_film;
80 extern const demuxer_desc_t demuxer_desc_roq;
81 extern const demuxer_desc_t demuxer_desc_gif;
82 extern const demuxer_desc_t demuxer_desc_ogg;
83 extern const demuxer_desc_t demuxer_desc_avs;
84 extern const demuxer_desc_t demuxer_desc_pva;
85 extern const demuxer_desc_t demuxer_desc_nsv;
86 extern const demuxer_desc_t demuxer_desc_mpeg_ts;
87 extern const demuxer_desc_t demuxer_desc_lmlm4;
88 extern const demuxer_desc_t demuxer_desc_mpeg_ps;
89 extern const demuxer_desc_t demuxer_desc_mpeg_pes;
90 extern const demuxer_desc_t demuxer_desc_mpeg_es;
91 extern const demuxer_desc_t demuxer_desc_mpeg_gxf;
92 extern const demuxer_desc_t demuxer_desc_mpeg4_es;
93 extern const demuxer_desc_t demuxer_desc_h264_es;
94 extern const demuxer_desc_t demuxer_desc_rawdv;
95 extern const demuxer_desc_t demuxer_desc_mpc;
96 extern const demuxer_desc_t demuxer_desc_audio;
97 extern const demuxer_desc_t demuxer_desc_xmms;
98 extern const demuxer_desc_t demuxer_desc_mpeg_ty;
99 extern const demuxer_desc_t demuxer_desc_rtp;
100 extern const demuxer_desc_t demuxer_desc_rtp_nemesi;
101 extern const demuxer_desc_t demuxer_desc_lavf;
102 extern const demuxer_desc_t demuxer_desc_lavf_preferred;
103 extern const demuxer_desc_t demuxer_desc_aac;
104 extern const demuxer_desc_t demuxer_desc_nut;
105 extern const demuxer_desc_t demuxer_desc_mng;
106
107 /* Please do not add any new demuxers here. If you want to implement a new
108 * demuxer, add it to libavformat, except for wrappers around external
109 * libraries and demuxers requiring binary support. */
110
111 const demuxer_desc_t *const demuxer_list[] = {
112 &demuxer_desc_rawaudio,
113 &demuxer_desc_rawvideo,
114 #ifdef CONFIG_TV
115 &demuxer_desc_tv,
116 #endif
117 &demuxer_desc_mf,
118 #ifdef CONFIG_LIBAVFORMAT
119 &demuxer_desc_lavf_preferred,
120 #endif
121 &demuxer_desc_avi,
122 &demuxer_desc_y4m,
123 &demuxer_desc_asf,
124 &demuxer_desc_nsv,
125 &demuxer_desc_real,
126 &demuxer_desc_smjpeg,
127 &demuxer_desc_matroska,
128 &demuxer_desc_realaudio,
129 &demuxer_desc_vqf,
130 &demuxer_desc_mov,
131 &demuxer_desc_vivo,
132 &demuxer_desc_fli,
133 &demuxer_desc_film,
134 &demuxer_desc_roq,
135 #ifdef CONFIG_GIF
136 &demuxer_desc_gif,
137 #endif
138 #ifdef CONFIG_OGGVORBIS
139 &demuxer_desc_ogg,
140 #endif
141 #ifdef CONFIG_WIN32DLL
142 &demuxer_desc_avs,
143 #endif
144 &demuxer_desc_pva,
145 &demuxer_desc_mpeg_ts,
146 &demuxer_desc_lmlm4,
147 &demuxer_desc_mpeg_ps,
148 &demuxer_desc_mpeg_pes,
149 &demuxer_desc_mpeg_es,
150 &demuxer_desc_mpeg_gxf,
151 &demuxer_desc_mpeg4_es,
152 &demuxer_desc_h264_es,
153 &demuxer_desc_audio,
154 &demuxer_desc_mpeg_ty,
155 #ifdef CONFIG_LIVE555
156 &demuxer_desc_rtp,
157 #endif
158 #ifdef CONFIG_LIBNEMESI
159 &demuxer_desc_rtp_nemesi,
160 #endif
161 #ifdef CONFIG_LIBAVFORMAT
162 &demuxer_desc_lavf,
163 #endif
164 #ifdef CONFIG_MUSEPACK
165 &demuxer_desc_mpc,
166 #endif
167 #ifdef CONFIG_LIBDV095
168 &demuxer_desc_rawdv,
169 #endif
170 &demuxer_desc_aac,
171 #ifdef CONFIG_LIBNUT
172 &demuxer_desc_nut,
173 #endif
174 #ifdef CONFIG_XMMS
175 &demuxer_desc_xmms,
176 #endif
177 #ifdef CONFIG_MNG
178 &demuxer_desc_mng,
179 #endif
180 /* Please do not add any new demuxers here. If you want to implement a new
181 * demuxer, add it to libavformat, except for wrappers around external
182 * libraries and demuxers requiring binary support. */
183 NULL
184 };
185
186 void free_demuxer_stream(demux_stream_t *ds)
187 {
188 ds_free_packs(ds);
189 free(ds);
190 }
191
192 demux_stream_t *new_demuxer_stream(struct demuxer *demuxer, int id)
193 {
194 demux_stream_t *ds = malloc(sizeof(demux_stream_t));
195 *ds = (demux_stream_t){
196 .id = id,
197 .demuxer = demuxer,
198 .asf_seq = -1,
199 };
200 return ds;
201 }
202
203
204 /**
205 * Get demuxer description structure for a given demuxer type
206 *
207 * @param file_format type of the demuxer
208 * @return structure for the demuxer, NULL if not found
209 */
210 static const demuxer_desc_t *get_demuxer_desc_from_type(int file_format)
211 {
212 int i;
213
214 for (i = 0; demuxer_list[i]; i++)
215 if (file_format == demuxer_list[i]->type)
216 return demuxer_list[i];
217
218 return NULL;
219 }
220
221
222 demuxer_t *new_demuxer(struct MPOpts *opts, stream_t *stream, int type,
223 int a_id, int v_id, int s_id, char *filename)
224 {
225 struct demuxer *d = talloc_zero(NULL, struct demuxer);
226 d->stream = stream;
227 d->stream_pts = MP_NOPTS_VALUE;
228 d->reference_clock = MP_NOPTS_VALUE;
229 d->movi_start = stream->start_pos;
230 d->movi_end = stream->end_pos;
231 d->seekable = 1;
232 d->synced = 0;
233 d->filepos = -1;
234 d->audio = new_demuxer_stream(d, a_id);
235 d->video = new_demuxer_stream(d, v_id);
236 d->sub = new_demuxer_stream(d, s_id);
237 d->type = type;
238 d->opts = opts;
239 if (type)
240 if (!(d->desc = get_demuxer_desc_from_type(type)))
241 mp_msg(MSGT_DEMUXER, MSGL_ERR,
242 "BUG! Invalid demuxer type in new_demuxer(), "
243 "big troubles ahead.");
244 if (filename) // Filename hack for avs_check_file
245 d->filename = strdup(filename);
246 stream_seek(stream, stream->start_pos);
247 return d;
248 }
249
250 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid)
251 {
252 if (id > MAX_S_STREAMS - 1 || id < 0) {
253 mp_msg(MSGT_DEMUXER, MSGL_WARN,
254 "Requested sub stream id overflow (%d > %d)\n", id,
255 MAX_S_STREAMS);
256 return NULL;
257 }
258 if (demuxer->s_streams[id])
259 mp_msg(MSGT_DEMUXER, MSGL_WARN, "Sub stream %i redefined\n", id);
260 else {
261 sh_sub_t *sh = calloc(1, sizeof(sh_sub_t));
262 demuxer->s_streams[id] = sh;
263 sh->sid = sid;
264 sh->opts = demuxer->opts;
265 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sid);
266 }
267 if (sid == demuxer->opts->sub_id) {
268 demuxer->sub->id = id;
269 demuxer->sub->sh = demuxer->s_streams[id];
270 }
271 return demuxer->s_streams[id];
272 }
273
274 struct sh_sub *new_sh_sub_sid_lang(struct demuxer *demuxer, int id, int sid,
275 const char *lang)
276 {
277 struct sh_sub *sh = new_sh_sub_sid(demuxer, id, sid);
278 if (lang && lang[0] && strcmp(lang, "und")) {
279 sh->lang = strdup(lang);
280 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", sid, lang);
281 }
282 return sh;
283 }
284
285 static void free_sh_sub(sh_sub_t *sh)
286 {
287 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_sub at %p\n", sh);
288 free(sh->extradata);
289 #ifdef CONFIG_ASS
290 if (sh->ass_track)
291 ass_free_track(sh->ass_track);
292 #endif
293 free(sh->lang);
294 #ifdef CONFIG_LIBAVCODEC
295 clear_parser((sh_common_t *)sh);
296 #endif
297 free(sh);
298 }
299
300 sh_audio_t *new_sh_audio_aid(demuxer_t *demuxer, int id, int aid)
301 {
302 if (id > MAX_A_STREAMS - 1 || id < 0) {
303 mp_msg(MSGT_DEMUXER, MSGL_WARN,
304 "Requested audio stream id overflow (%d > %d)\n", id,
305 MAX_A_STREAMS);
306 return NULL;
307 }
308 if (demuxer->a_streams[id]) {
309 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Audio stream header %d redefined.\n", id);
310 } else {
311 mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found audio stream: %d\n", id);
312 sh_audio_t *sh = calloc(1, sizeof(sh_audio_t));
313 demuxer->a_streams[id] = sh;
314 sh->aid = aid;
315 sh->ds = demuxer->audio;
316 // set some defaults
317 sh->samplesize = 2;
318 sh->sample_format = AF_FORMAT_S16_NE;
319 sh->opts = demuxer->opts;
320 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", aid);
321 }
322 return demuxer->a_streams[id];
323 }
324
325 void free_sh_audio(demuxer_t *demuxer, int id)
326 {
327 sh_audio_t *sh = demuxer->a_streams[id];
328 demuxer->a_streams[id] = NULL;
329 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_audio at %p\n", sh);
330 free(sh->wf);
331 free(sh->codecdata);
332 free(sh->lang);
333 #ifdef CONFIG_LIBAVCODEC
334 clear_parser((sh_common_t *)sh);
335 #endif
336 free(sh);
337 }
338
339 sh_video_t *new_sh_video_vid(demuxer_t *demuxer, int id, int vid)
340 {
341 if (id > MAX_V_STREAMS - 1 || id < 0) {
342 mp_msg(MSGT_DEMUXER, MSGL_WARN,
343 "Requested video stream id overflow (%d > %d)\n", id,
344 MAX_V_STREAMS);
345 return NULL;
346 }
347 if (demuxer->v_streams[id])
348 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Video stream header %d redefined.\n", id);
349 else {
350 mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found video stream: %d\n", id);
351 sh_video_t *sh = calloc(1, sizeof *sh);
352 demuxer->v_streams[id] = sh;
353 sh->vid = vid;
354 sh->ds = demuxer->video;
355 sh->opts = demuxer->opts;
356 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_ID=%d\n", vid);
357 }
358 return demuxer->v_streams[id];
359 }
360
361 void free_sh_video(sh_video_t *sh)
362 {
363 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_video at %p\n", sh);
364 free(sh->bih);
365 #ifdef CONFIG_LIBAVCODEC
366 clear_parser((sh_common_t *)sh);
367 #endif
368 free(sh);
369 }
370
371 void free_demuxer(demuxer_t *demuxer)
372 {
373 int i;
374 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing %s demuxer at %p\n",
375 demuxer->desc->shortdesc, demuxer);
376 if (demuxer->desc->close)
377 demuxer->desc->close(demuxer);
378 // Very ugly hack to make it behave like old implementation
379 if (demuxer->desc->type == DEMUXER_TYPE_DEMUXERS)
380 goto skip_streamfree;
381 // free streams:
382 for (i = 0; i < MAX_A_STREAMS; i++)
383 if (demuxer->a_streams[i])
384 free_sh_audio(demuxer, i);
385 for (i = 0; i < MAX_V_STREAMS; i++)
386 if (demuxer->v_streams[i])
387 free_sh_video(demuxer->v_streams[i]);
388 for (i = 0; i < MAX_S_STREAMS; i++)
389 if (demuxer->s_streams[i])
390 free_sh_sub(demuxer->s_streams[i]);
391 // free demuxers:
392 free_demuxer_stream(demuxer->audio);
393 free_demuxer_stream(demuxer->video);
394 free_demuxer_stream(demuxer->sub);
395 skip_streamfree:
396 free(demuxer->filename);
397 if (demuxer->teletext)
398 teletext_control(demuxer->teletext, TV_VBI_CONTROL_STOP, NULL);
399 talloc_free(demuxer);
400 }
401
402
403 static void ds_add_packet_internal(demux_stream_t *ds, demux_packet_t *dp)
404 {
405 // append packet to DS stream:
406 ++ds->packs;
407 ds->bytes += dp->len;
408 if (ds->last) {
409 // next packet in stream
410 ds->last->next = dp;
411 ds->last = dp;
412 } else {
413 // first packet in stream
414 ds->first = ds->last = dp;
415 }
416 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
417 "DEMUX: Append packet to %s, len=%d pts=%5.3f pos=%u [packs: A=%d V=%d]\n",
418 (ds == ds->demuxer->audio) ? "d_audio" : "d_video", dp->len,
419 dp->pts, (unsigned int) dp->pos, ds->demuxer->audio->packs,
420 ds->demuxer->video->packs);
421 }
422
423 #ifdef CONFIG_LIBAVCODEC
424 static void allocate_parser(AVCodecContext **avctx, AVCodecParserContext **parser, unsigned format)
425 {
426 enum CodecID codec_id = CODEC_ID_NONE;
427 extern int avcodec_initialized;
428 if (!avcodec_initialized) {
429 avcodec_init();
430 avcodec_register_all();
431 avcodec_initialized = 1;
432 }
433 switch (format) {
434 case 0x2000:
435 case 0x332D6361:
436 case 0x332D4341:
437 case MKTAG('d', 'n', 'e', 't'):
438 case MKTAG('s', 'a', 'c', '3'):
439 codec_id = CODEC_ID_AC3;
440 break;
441 case MKTAG('E', 'A', 'C', '3'):
442 codec_id = CODEC_ID_EAC3;
443 break;
444 case 0x2001:
445 case 0x86:
446 codec_id = CODEC_ID_DTS;
447 break;
448 case MKTAG('M', 'L', 'P', ' '):
449 codec_id = CODEC_ID_MLP;
450 break;
451 case 0x55:
452 case 0x5500736d:
453 case MKTAG('.', 'm', 'p', '3'):
454 case MKTAG('M', 'P', 'E', ' '):
455 case MKTAG('L', 'A', 'M', 'E'):
456 codec_id = CODEC_ID_MP3;
457 break;
458 case 0x50:
459 case MKTAG('.', 'm', 'p', '2'):
460 case MKTAG('.', 'm', 'p', '1'):
461 codec_id = CODEC_ID_MP2;
462 break;
463 case MKTAG('T', 'R', 'H', 'D'):
464 codec_id = CODEC_ID_TRUEHD;
465 break;
466 }
467 if (codec_id != CODEC_ID_NONE) {
468 *avctx = avcodec_alloc_context();
469 if (!*avctx)
470 return;
471 *parser = av_parser_init(codec_id);
472 if (!*parser)
473 av_freep(avctx);
474 }
475 }
476
477 static void get_parser(sh_common_t *sh, AVCodecContext **avctx, AVCodecParserContext **parser)
478 {
479 *avctx = NULL;
480 *parser = NULL;
481
482 if (!sh || !sh->needs_parsing)
483 return;
484
485 *avctx = sh->avctx;
486 *parser = sh->parser;
487 if (*parser)
488 return;
489
490 allocate_parser(avctx, parser, sh->format);
491 sh->avctx = *avctx;
492 sh->parser = *parser;
493 }
494
495 int ds_parse(demux_stream_t *ds, uint8_t **buffer, int *len, double pts, off_t pos)
496 {
497 AVCodecContext *avctx;
498 AVCodecParserContext *parser;
499 get_parser(ds->sh, &avctx, &parser);
500 if (!parser)
501 return *len;
502 return av_parser_parse2(parser, avctx, buffer, len, *buffer, *len, pts, pts, pos);
503 }
504
505 static void clear_parser(sh_common_t *sh)
506 {
507 av_parser_close(sh->parser);
508 sh->parser = NULL;
509 av_freep(&sh->avctx);
510 }
511
512 void ds_clear_parser(demux_stream_t *ds)
513 {
514 if (!ds->sh)
515 return;
516 clear_parser(ds->sh);
517 }
518 #endif
519
520 void ds_add_packet(demux_stream_t *ds, demux_packet_t *dp)
521 {
522 #if PARSE_ON_ADD && defined(CONFIG_LIBAVCODEC)
523 int len = dp->len;
524 int pos = 0;
525 while (len > 0) {
526 uint8_t *parsed_start = dp->buffer + pos;
527 int parsed_len = len;
528 int consumed = ds_parse(ds->sh, &parsed_start, &parsed_len, dp->pts, dp->pos);
529 pos += consumed;
530 len -= consumed;
531 if (parsed_start == dp->buffer && parsed_len == dp->len) {
532 ds_add_packet_internal(ds, dp);
533 } else if (parsed_len) {
534 demux_packet_t *dp2 = new_demux_packet(parsed_len);
535 dp2->pos = dp->pos;
536 dp2->pts = dp->pts; // should be parser->pts but that works badly
537 memcpy(dp2->buffer, parsed_start, parsed_len);
538 ds_add_packet_internal(ds, dp2);
539 }
540 }
541 #else
542 ds_add_packet_internal(ds, dp);
543 #endif
544 }
545
546 void ds_read_packet(demux_stream_t *ds, stream_t *stream, int len,
547 double pts, off_t pos, int flags)
548 {
549 demux_packet_t *dp = new_demux_packet(len);
550 len = stream_read(stream, dp->buffer, len);
551 resize_demux_packet(dp, len);
552 dp->pts = pts;
553 dp->pos = pos;
554 dp->flags = flags;
555 // append packet to DS stream:
556 ds_add_packet(ds, dp);
557 }
558
559 // return value:
560 // 0 = EOF or no stream found or invalid type
561 // 1 = successfully read a packet
562
563 int demux_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
564 {
565 // Note: parameter 'ds' can be NULL!
566 return demux->desc->fill_buffer(demux, ds);
567 }
568
569 // return value:
570 // 0 = EOF
571 // 1 = successful
572 #define MAX_ACUMULATED_PACKETS 64
573 int ds_fill_buffer(demux_stream_t *ds)
574 {
575 demuxer_t *demux = ds->demuxer;
576 if (ds->current)
577 free_demux_packet(ds->current);
578 ds->current = NULL;
579 if (mp_msg_test(MSGT_DEMUXER, MSGL_DBG3)) {
580 if (ds == demux->audio)
581 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
582 "ds_fill_buffer(d_audio) called\n");
583 else if (ds == demux->video)
584 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
585 "ds_fill_buffer(d_video) called\n");
586 else if (ds == demux->sub)
587 mp_dbg(MSGT_DEMUXER, MSGL_DBG3, "ds_fill_buffer(d_sub) called\n");
588 else
589 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
590 "ds_fill_buffer(unknown 0x%X) called\n", (unsigned int) ds);
591 }
592 while (1) {
593 if (ds->packs) {
594 demux_packet_t *p = ds->first;
595 #if 0
596 if (demux->reference_clock != MP_NOPTS_VALUE) {
597 if ( p->pts != MP_NOPTS_VALUE
598 && p->pts > demux->reference_clock
599 && ds->packs < MAX_ACUMULATED_PACKETS) {
600 if (demux_fill_buffer(demux, ds))
601 continue;
602 }
603 }
604 #endif
605 // copy useful data:
606 ds->buffer = p->buffer;
607 ds->buffer_pos = 0;
608 ds->buffer_size = p->len;
609 ds->pos = p->pos;
610 ds->dpos += p->len; // !!!
611 ++ds->pack_no;
612 if (p->pts != MP_NOPTS_VALUE) {
613 ds->pts = p->pts;
614 ds->pts_bytes = 0;
615 }
616 ds->pts_bytes += p->len; // !!!
617 if (p->stream_pts != MP_NOPTS_VALUE)
618 demux->stream_pts = p->stream_pts;
619 ds->flags = p->flags;
620 // unlink packet:
621 ds->bytes -= p->len;
622 ds->current = p;
623 ds->first = p->next;
624 if (!ds->first)
625 ds->last = NULL;
626 --ds->packs;
627 /* The code below can set ds->eof to 1 when another stream runs
628 * out of buffer space. That makes sense because in that situation
629 * the calling code should not count on being able to demux more
630 * packets from this stream.
631 * If however the situation improves and we're called again
632 * despite the eof flag then it's better to clear it to avoid
633 * weird behavior. */
634 ds->eof = 0;
635 return 1;
636 }
637
638 #define MaybeNI _("Maybe you are playing a non-interleaved stream/file or the codec failed?\n" \
639 "For AVI files, try to force non-interleaved mode with the -ni option.\n")
640
641 if (demux->audio->packs >= MAX_PACKS
642 || demux->audio->bytes >= MAX_PACK_BYTES) {
643 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
644 demux->audio->packs, demux->audio->bytes);
645 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
646 break;
647 }
648 if (demux->video->packs >= MAX_PACKS
649 || demux->video->bytes >= MAX_PACK_BYTES) {
650 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
651 demux->video->packs, demux->video->bytes);
652 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
653 break;
654 }
655 if (!demux_fill_buffer(demux, ds)) {
656 #if PARSE_ON_ADD && defined(CONFIG_LIBAVCODEC)
657 uint8_t *parsed_start = NULL;
658 int parsed_len = 0;
659 ds_parse(ds->sh, &parsed_start, &parsed_len, MP_NOPTS_VALUE, 0);
660 if (parsed_len) {
661 demux_packet_t *dp2 = new_demux_packet(parsed_len);
662 dp2->pts = MP_NOPTS_VALUE;
663 memcpy(dp2->buffer, parsed_start, parsed_len);
664 ds_add_packet_internal(ds, dp2);
665 continue;
666 }
667 #endif
668 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
669 "ds_fill_buffer()->demux_fill_buffer() failed\n");
670 break; // EOF
671 }
672 }
673 ds->buffer_pos = ds->buffer_size = 0;
674 ds->buffer = NULL;
675 mp_msg(MSGT_DEMUXER, MSGL_V,
676 "ds_fill_buffer: EOF reached (stream: %s) \n",
677 ds == demux->audio ? "audio" : "video");
678 ds->eof = 1;
679 return 0;
680 }
681
682 int demux_read_data(demux_stream_t *ds, unsigned char *mem, int len)
683 {
684 int x;
685 int bytes = 0;
686 while (len > 0) {
687 x = ds->buffer_size - ds->buffer_pos;
688 if (x == 0) {
689 if (!ds_fill_buffer(ds))
690 return bytes;
691 } else {
692 if (x > len)
693 x = len;
694 if (mem)
695 fast_memcpy(mem + bytes, &ds->buffer[ds->buffer_pos], x);
696 bytes += x;
697 len -= x;
698 ds->buffer_pos += x;
699 }
700 }
701 return bytes;
702 }
703
704 /**
705 * \brief read data until the given 3-byte pattern is encountered, up to maxlen
706 * \param mem memory to read data into, may be NULL to discard data
707 * \param maxlen maximum number of bytes to read
708 * \param read number of bytes actually read
709 * \param pattern pattern to search for (lowest 8 bits are ignored)
710 * \return whether pattern was found
711 */
712 int demux_pattern_3(demux_stream_t *ds, unsigned char *mem, int maxlen,
713 int *read, uint32_t pattern)
714 {
715 register uint32_t head = 0xffffff00;
716 register uint32_t pat = pattern & 0xffffff00;
717 int total_len = 0;
718 do {
719 register unsigned char *ds_buf = &ds->buffer[ds->buffer_size];
720 int len = ds->buffer_size - ds->buffer_pos;
721 register long pos = -len;
722 if (unlikely(pos >= 0)) { // buffer is empty
723 ds_fill_buffer(ds);
724 continue;
725 }
726 do {
727 head |= ds_buf[pos];
728 head <<= 8;
729 } while (++pos && head != pat);
730 len += pos;
731 if (total_len + len > maxlen)
732 len = maxlen - total_len;
733 len = demux_read_data(ds, mem ? &mem[total_len] : NULL, len);
734 total_len += len;
735 } while ((head != pat || total_len < 3) && total_len < maxlen && !ds->eof);
736 if (read)
737 *read = total_len;
738 return total_len >= 3 && head == pat;
739 }
740
741 void ds_free_packs(demux_stream_t *ds)
742 {
743 demux_packet_t *dp = ds->first;
744 while (dp) {
745 demux_packet_t *dn = dp->next;
746 free_demux_packet(dp);
747 dp = dn;
748 }
749 if (ds->asf_packet) {
750 // free unfinished .asf fragments:
751 free(ds->asf_packet->buffer);
752 free(ds->asf_packet);
753 ds->asf_packet = NULL;
754 }
755 ds->first = ds->last = NULL;
756 ds->packs = 0; // !!!!!
757 ds->bytes = 0;
758 if (ds->current)
759 free_demux_packet(ds->current);
760 ds->current = NULL;
761 ds->buffer = NULL;
762 ds->buffer_pos = ds->buffer_size;
763 ds->pts = 0;
764 ds->pts_bytes = 0;
765 }
766
767 int ds_get_packet(demux_stream_t *ds, unsigned char **start)
768 {
769 int len;
770 if (ds->buffer_pos >= ds->buffer_size) {
771 if (!ds_fill_buffer(ds)) {
772 // EOF
773 *start = NULL;
774 return -1;
775 }
776 }
777 len = ds->buffer_size - ds->buffer_pos;
778 *start = &ds->buffer[ds->buffer_pos];
779 ds->buffer_pos += len;
780 return len;
781 }
782
783 int ds_get_packet_pts(demux_stream_t *ds, unsigned char **start, double *pts)
784 {
785 int len;
786 *pts = MP_NOPTS_VALUE;
787 len = ds_get_packet(ds, start);
788 if (len < 0)
789 return len;
790 // Return pts unless this read starts from the middle of a packet
791 if (len == ds->buffer_pos)
792 *pts = ds->current->pts;
793 return len;
794 }
795
796 int ds_get_packet_sub(demux_stream_t *ds, unsigned char **start)
797 {
798 int len;
799 if (ds->buffer_pos >= ds->buffer_size) {
800 *start = NULL;
801 if (!ds->packs)
802 return -1; // no sub
803 if (!ds_fill_buffer(ds))
804 return -1; // EOF
805 }
806 len = ds->buffer_size - ds->buffer_pos;
807 *start = &ds->buffer[ds->buffer_pos];
808 ds->buffer_pos += len;
809 return len;
810 }
811
812 double ds_get_next_pts(demux_stream_t *ds)
813 {
814 demuxer_t *demux = ds->demuxer;
815 // if we have not read from the "current" packet, consider it
816 // as the next, otherwise we never get the pts for the first packet.
817 while (!ds->first && (!ds->current || ds->buffer_pos)) {
818 if (demux->audio->packs >= MAX_PACKS
819 || demux->audio->bytes >= MAX_PACK_BYTES) {
820 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
821 demux->audio->packs, demux->audio->bytes);
822 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
823 return MP_NOPTS_VALUE;
824 }
825 if (demux->video->packs >= MAX_PACKS
826 || demux->video->bytes >= MAX_PACK_BYTES) {
827 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
828 demux->video->packs, demux->video->bytes);
829 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
830 return MP_NOPTS_VALUE;
831 }
832 if (!demux_fill_buffer(demux, ds))
833 return MP_NOPTS_VALUE;
834 }
835 // take pts from "current" if we never read from it.
836 if (ds->current && !ds->buffer_pos)
837 return ds->current->pts;
838 return ds->first->pts;
839 }
840
841 // ====================================================================
842
843 void demuxer_help(void)
844 {
845 int i;
846
847 mp_msg(MSGT_DEMUXER, MSGL_INFO, "Available demuxers:\n");
848 mp_msg(MSGT_DEMUXER, MSGL_INFO, " demuxer: type info: (comment)\n");
849 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DEMUXERS\n");
850 for (i = 0; demuxer_list[i]; i++) {
851 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Don't display special demuxers
852 continue;
853 if (demuxer_list[i]->comment && strlen(demuxer_list[i]->comment))
854 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s (%s)\n",
855 demuxer_list[i]->name, demuxer_list[i]->type,
856 demuxer_list[i]->info, demuxer_list[i]->comment);
857 else
858 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s\n",
859 demuxer_list[i]->name, demuxer_list[i]->type,
860 demuxer_list[i]->info);
861 }
862 }
863
864
865 /**
866 * Get demuxer type for a given demuxer name
867 *
868 * @param demuxer_name string with demuxer name of demuxer number
869 * @param force will be set if demuxer should be forced.
870 * May be NULL.
871 * @return DEMUXER_TYPE_xxx, -1 if error or not found
872 */
873 int get_demuxer_type_from_name(char *demuxer_name, int *force)
874 {
875 int i;
876 long type_int;
877 char *endptr;
878
879 if (!demuxer_name || !demuxer_name[0])
880 return DEMUXER_TYPE_UNKNOWN;
881 if (force)
882 *force = demuxer_name[0] == '+';
883 if (demuxer_name[0] == '+')
884 demuxer_name = &demuxer_name[1];
885 for (i = 0; demuxer_list[i]; i++) {
886 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Can't select special demuxers from commandline
887 continue;
888 if (strcmp(demuxer_name, demuxer_list[i]->name) == 0)
889 return demuxer_list[i]->type;
890 }
891
892 // No match found, try to parse name as an integer (demuxer number)
893 type_int = strtol(demuxer_name, &endptr, 0);
894 if (*endptr) // Conversion failed
895 return -1;
896 if ((type_int > 0) && (type_int <= DEMUXER_TYPE_MAX))
897 return (int) type_int;
898
899 return -1;
900 }
901
902 int extension_parsing = 1; // 0=off 1=mixed (used only for unstable formats)
903
904 /*
905 NOTE : Several demuxers may be opened at the same time so
906 demuxers should NEVER rely on an external var to enable them
907 self. If a demuxer can't do any auto-detection it should only use
908 file_format. The user can explicitly set file_format with the -demuxer
909 option so there is really no need for another extra var.
910 For convenience an option can be added to set file_format directly
911 to the right type (ex: rawaudio,rawvideo).
912 Also the stream can override the file_format so a demuxer which rely
913 on a special stream type can set file_format at the stream level
914 (ex: tv,mf).
915 */
916
917 static demuxer_t *demux_open_stream(struct MPOpts *opts, stream_t *stream,
918 int file_format, int force, int audio_id,
919 int video_id, int dvdsub_id,
920 char *filename)
921 {
922 demuxer_t *demuxer = NULL;
923
924 sh_video_t *sh_video = NULL;
925
926 const demuxer_desc_t *demuxer_desc;
927 int fformat = 0;
928 int i;
929
930 // If somebody requested a demuxer check it
931 if (file_format) {
932 if ((demuxer_desc = get_demuxer_desc_from_type(file_format))) {
933 demuxer = new_demuxer(opts, stream, demuxer_desc->type, audio_id,
934 video_id, dvdsub_id, filename);
935 if (demuxer_desc->check_file)
936 fformat = demuxer_desc->check_file(demuxer);
937 if (force || !demuxer_desc->check_file)
938 fformat = demuxer_desc->type;
939 if (fformat != 0) {
940 if (fformat == demuxer_desc->type) {
941 demuxer_t *demux2 = demuxer;
942 // Move messages to demuxer detection code?
943 mp_tmsg(MSGT_DEMUXER, MSGL_INFO,
944 "%s file format detected.\n",
945 demuxer_desc->shortdesc);
946 file_format = fformat;
947 if (!demuxer->desc->open
948 || (demux2 = demuxer->desc->open(demuxer))) {
949 demuxer = demux2;
950 goto dmx_open;
951 }
952 } else {
953 // Format changed after check, recurse
954 free_demuxer(demuxer);
955 return demux_open_stream(opts, stream, fformat, force,
956 audio_id, video_id, dvdsub_id,
957 filename);
958 }
959 }
960 // Check failed for forced demuxer, quit
961 free_demuxer(demuxer);
962 return NULL;
963 }
964 }
965 // Test demuxers with safe file checks
966 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
967 if (demuxer_desc->safe_check) {
968 demuxer = new_demuxer(opts, stream, demuxer_desc->type, audio_id,
969 video_id, dvdsub_id, filename);
970 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
971 if (fformat == demuxer_desc->type) {
972 demuxer_t *demux2 = demuxer;
973 mp_tmsg(MSGT_DEMUXER, MSGL_INFO,
974 "%s file format detected.\n",
975 demuxer_desc->shortdesc);
976 file_format = fformat;
977 if (!demuxer->desc->open
978 || (demux2 = demuxer->desc->open(demuxer))) {
979 demuxer = demux2;
980 goto dmx_open;
981 }
982 } else {
983 if (fformat == DEMUXER_TYPE_PLAYLIST)
984 return demuxer; // handled in mplayer.c
985 // Format changed after check, recurse
986 free_demuxer(demuxer);
987 demuxer = demux_open_stream(opts, stream, fformat, force,
988 audio_id, video_id,
989 dvdsub_id, filename);
990 if (demuxer)
991 return demuxer; // done!
992 file_format = DEMUXER_TYPE_UNKNOWN;
993 }
994 }
995 free_demuxer(demuxer);
996 demuxer = NULL;
997 }
998 }
999
1000 // If no forced demuxer perform file extension based detection
1001 // Ok. We're over the stable detectable fileformats, the next ones are
1002 // a bit fuzzy. So by default (extension_parsing==1) try extension-based
1003 // detection first:
1004 if (file_format == DEMUXER_TYPE_UNKNOWN && filename
1005 && extension_parsing == 1) {
1006 file_format = demuxer_type_by_filename(filename);
1007 if (file_format != DEMUXER_TYPE_UNKNOWN) {
1008 // we like recursion :)
1009 demuxer = demux_open_stream(opts, stream, file_format, force,
1010 audio_id, video_id, dvdsub_id,
1011 filename);
1012 if (demuxer)
1013 return demuxer; // done!
1014 file_format = DEMUXER_TYPE_UNKNOWN; // continue fuzzy guessing...
1015 mp_msg(MSGT_DEMUXER, MSGL_V,
1016 "demuxer: continue fuzzy content-based format guessing...\n");
1017 }
1018 }
1019 // Try detection for all other demuxers
1020 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
1021 if (!demuxer_desc->safe_check && demuxer_desc->check_file) {
1022 demuxer = new_demuxer(opts, stream, demuxer_desc->type, audio_id,
1023 video_id, dvdsub_id, filename);
1024 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
1025 if (fformat == demuxer_desc->type) {
1026 demuxer_t *demux2 = demuxer;
1027 mp_tmsg(MSGT_DEMUXER, MSGL_INFO,
1028 "%s file format detected.\n",
1029 demuxer_desc->shortdesc);
1030 file_format = fformat;
1031 if (!demuxer->desc->open
1032 || (demux2 = demuxer->desc->open(demuxer))) {
1033 demuxer = demux2;
1034 goto dmx_open;
1035 }
1036 } else {
1037 if (fformat == DEMUXER_TYPE_PLAYLIST)
1038 return demuxer; // handled in mplayer.c
1039 // Format changed after check, recurse
1040 free_demuxer(demuxer);
1041 demuxer = demux_open_stream(opts, stream, fformat, force,
1042 audio_id, video_id,
1043 dvdsub_id, filename);
1044 if (demuxer)
1045 return demuxer; // done!
1046 file_format = DEMUXER_TYPE_UNKNOWN;
1047 }
1048 }
1049 free_demuxer(demuxer);
1050 demuxer = NULL;
1051 }
1052 }
1053
1054 return NULL;
1055 //====== File format recognized, set up these for compatibility: =========
1056 dmx_open:
1057
1058 demuxer->file_format = file_format;
1059
1060 if ((sh_video = demuxer->video->sh) && sh_video->bih) {
1061 int biComp = le2me_32(sh_video->bih->biCompression);
1062 mp_msg(MSGT_DEMUX, MSGL_INFO,
1063 "VIDEO: [%.4s] %dx%d %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
1064 (char *) &biComp, sh_video->bih->biWidth,
1065 sh_video->bih->biHeight, sh_video->bih->biBitCount,
1066 sh_video->fps, sh_video->i_bps * 0.008f,
1067 sh_video->i_bps / 1024.0f);
1068 }
1069 #ifdef CONFIG_ASS
1070 if (opts->ass_enabled && ass_library) {
1071 for (i = 0; i < MAX_S_STREAMS; ++i) {
1072 sh_sub_t *sh = demuxer->s_streams[i];
1073 if (sh && sh->type == 'a') {
1074 sh->ass_track = ass_new_track(ass_library);
1075 if (sh->ass_track && sh->extradata)
1076 ass_process_codec_private(sh->ass_track, sh->extradata,
1077 sh->extradata_len);
1078 } else if (sh && sh->type != 'v')
1079 sh->ass_track = ass_default_track(ass_library);
1080 }
1081 }
1082 #endif
1083 return demuxer;
1084 }
1085
1086 char *audio_stream = NULL;
1087 char *sub_stream = NULL;
1088 int audio_stream_cache = 0;
1089
1090 char *demuxer_name = NULL; // parameter from -demuxer
1091 char *audio_demuxer_name = NULL; // parameter from -audio-demuxer
1092 char *sub_demuxer_name = NULL; // parameter from -sub-demuxer
1093
1094 extern int hr_mp3_seek;
1095
1096 extern float stream_cache_min_percent;
1097 extern float stream_cache_seek_min_percent;
1098
1099 demuxer_t *demux_open(struct MPOpts *opts, stream_t *vs, int file_format,
1100 int audio_id, int video_id, int dvdsub_id,
1101 char *filename)
1102 {
1103 stream_t *as = NULL, *ss = NULL;
1104 demuxer_t *vd, *ad = NULL, *sd = NULL;
1105 demuxer_t *res;
1106 int afmt = DEMUXER_TYPE_UNKNOWN, sfmt = DEMUXER_TYPE_UNKNOWN;
1107 int demuxer_type;
1108 int audio_demuxer_type = 0, sub_demuxer_type = 0;
1109 int demuxer_force = 0, audio_demuxer_force = 0, sub_demuxer_force = 0;
1110
1111 if ((demuxer_type =
1112 get_demuxer_type_from_name(demuxer_name, &demuxer_force)) < 0) {
1113 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-demuxer %s does not exist.\n",
1114 demuxer_name);
1115 }
1116 if ((audio_demuxer_type =
1117 get_demuxer_type_from_name(audio_demuxer_name,
1118 &audio_demuxer_force)) < 0) {
1119 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-audio-demuxer %s does not exist.\n",
1120 audio_demuxer_name);
1121 }
1122 if ((sub_demuxer_type =
1123 get_demuxer_type_from_name(sub_demuxer_name,
1124 &sub_demuxer_force)) < 0) {
1125 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-sub-demuxer %s does not exist.\n",
1126 sub_demuxer_name);
1127 }
1128
1129 if (audio_stream) {
1130 as = open_stream(audio_stream, 0, &afmt);
1131 if (!as) {
1132 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open audio stream: %s\n",
1133 audio_stream);
1134 return NULL;
1135 }
1136 if (audio_stream_cache) {
1137 if (!stream_enable_cache
1138 (as, audio_stream_cache * 1024,
1139 audio_stream_cache * 1024 * (stream_cache_min_percent /
1140 100.0),
1141 audio_stream_cache * 1024 * (stream_cache_seek_min_percent /
1142 100.0))) {
1143 free_stream(as);
1144 mp_msg(MSGT_DEMUXER, MSGL_ERR,
1145 "Can't enable audio stream cache\n");
1146 return NULL;
1147 }
1148 }
1149 }
1150 if (sub_stream) {
1151 ss = open_stream(sub_stream, 0, &sfmt);
1152 if (!ss) {
1153 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open subtitle stream: %s\n",
1154 sub_stream);
1155 return NULL;
1156 }
1157 }
1158
1159 vd = demux_open_stream(opts, vs, demuxer_type ? demuxer_type : file_format,
1160 demuxer_force, audio_stream ? -2 : audio_id,
1161 video_id, sub_stream ? -2 : dvdsub_id, filename);
1162 if (!vd) {
1163 if (as)
1164 free_stream(as);
1165 if (ss)
1166 free_stream(ss);
1167 return NULL;
1168 }
1169 if (as) {
1170 ad = demux_open_stream(opts, as,
1171 audio_demuxer_type ? audio_demuxer_type : afmt,
1172 audio_demuxer_force, audio_id, -2, -2,
1173 audio_stream);
1174 if (!ad) {
1175 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "Failed to open audio demuxer: %s\n",
1176 audio_stream);
1177 free_stream(as);
1178 } else if (ad->audio->sh
1179 && ((sh_audio_t *) ad->audio->sh)->format == 0x55) // MP3
1180 hr_mp3_seek = 1; // Enable high res seeking
1181 }
1182 if (ss) {
1183 sd = demux_open_stream(opts, ss,
1184 sub_demuxer_type ? sub_demuxer_type : sfmt,
1185 sub_demuxer_force, -2, -2, dvdsub_id,
1186 sub_stream);
1187 if (!sd) {
1188 mp_tmsg(MSGT_DEMUXER, MSGL_WARN,
1189 "Failed to open subtitle demuxer: %s\n", sub_stream);
1190 free_stream(ss);
1191 }
1192 }
1193
1194 if (ad && sd)
1195 res = new_demuxers_demuxer(vd, ad, sd);
1196 else if (ad)
1197 res = new_demuxers_demuxer(vd, ad, vd);
1198 else if (sd)
1199 res = new_demuxers_demuxer(vd, vd, sd);
1200 else
1201 res = vd;
1202
1203 opts->correct_pts = opts->user_correct_pts;
1204 if (opts->correct_pts < 0)
1205 opts->correct_pts =
1206 demux_control(res, DEMUXER_CTRL_CORRECT_PTS,
1207 NULL) == DEMUXER_CTRL_OK;
1208 return res;
1209 }
1210
1211
1212 void demux_flush(demuxer_t *demuxer)
1213 {
1214 #if PARSE_ON_ADD
1215 ds_clear_parser(demuxer->video);
1216 ds_clear_parser(demuxer->audio);
1217 ds_clear_parser(demuxer->sub);
1218 #endif
1219 ds_free_packs(demuxer->video);
1220 ds_free_packs(demuxer->audio);
1221 ds_free_packs(demuxer->sub);
1222 }
1223
1224 int demux_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay,
1225 int flags)
1226 {
1227 if (!demuxer->seekable) {
1228 if (demuxer->file_format == DEMUXER_TYPE_AVI)
1229 mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in raw AVI streams. (Index required, try with the -idx switch.)\n");
1230 #ifdef CONFIG_TV
1231 else if (demuxer->file_format == DEMUXER_TYPE_TV)
1232 mp_tmsg(MSGT_SEEK, MSGL_WARN, "TV input is not seekable! (Seeking will probably be for changing channels ;)\n");
1233 #endif
1234 else
1235 mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in this file.\n");
1236 return 0;
1237 }
1238 // clear demux buffers:
1239 demux_flush(demuxer);
1240 demuxer->video->eof = 0;
1241 demuxer->audio->eof = 0;
1242
1243 /* HACK: assume any demuxer used with these streams can cope with
1244 * the stream layer suddenly seeking to a different position under it
1245 * (nothing actually implements DEMUXER_CTRL_RESYNC now).
1246 */
1247 struct stream *stream = demuxer->stream;
1248 if (stream->type == STREAMTYPE_DVD || stream->type == STREAMTYPE_DVDNAV) {
1249 double pts;
1250
1251 if (flags & SEEK_ABSOLUTE)
1252 pts = 0.0f;
1253 else {
1254 if (demuxer->stream_pts == MP_NOPTS_VALUE)
1255 goto dmx_seek;
1256 pts = demuxer->stream_pts;
1257 }
1258
1259 if (flags & SEEK_FACTOR) {
1260 double tmp = 0;
1261 if (stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH,
1262 &tmp) == STREAM_UNSUPPORTED)
1263 goto dmx_seek;
1264 pts += tmp * rel_seek_secs;
1265 } else
1266 pts += rel_seek_secs;
1267
1268 if (stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, &pts)
1269 != STREAM_UNSUPPORTED) {
1270 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1271 return 1;
1272 }
1273 }
1274
1275 dmx_seek:
1276 if (demuxer->desc->seek)
1277 demuxer->desc->seek(demuxer, rel_seek_secs, audio_delay, flags);
1278
1279 return 1;
1280 }
1281
1282 int demux_info_add(demuxer_t *demuxer, const char *opt, const char *param)
1283 {
1284 return demux_info_add_bstr(demuxer, BSTR(opt), BSTR(param));
1285 }
1286
1287 int demux_info_add_bstr(demuxer_t *demuxer, struct bstr opt, struct bstr param)
1288 {
1289 char **info = demuxer->info;
1290 int n = 0;
1291
1292
1293 for (n = 0; info && info[2 * n] != NULL; n++) {
1294 if (!bstrcasecmp(opt, BSTR(info[2*n]))) {
1295 if (!bstrcmp(param, BSTR(info[2*n + 1]))) {
1296 mp_msg(MSGT_DEMUX, MSGL_V, "Demuxer info %.*s set to unchanged value %.*s\n",
1297 BSTR_P(opt), BSTR_P(param));
1298 return 0;
1299 }
1300 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Demuxer info %.*s changed to %.*s\n",
1301 BSTR_P(opt), BSTR_P(param));
1302 talloc_free(info[2*n + 1]);
1303 info[2*n + 1] = talloc_strndup(demuxer->info, param.start, param.len);
1304 return 0;
1305 }
1306 }
1307
1308 info = demuxer->info = talloc_realloc(demuxer, info, char *, 2 * (n + 2));
1309 info[2*n] = talloc_strndup(demuxer->info, opt.start, opt.len);
1310 info[2*n + 1] = talloc_strndup(demuxer->info, param.start, param.len);
1311 memset(&info[2 * (n + 1)], 0, 2 * sizeof(char *));
1312
1313 return 1;
1314 }
1315
1316 int demux_info_print(demuxer_t *demuxer)
1317 {
1318 char **info = demuxer->info;
1319 int n;
1320
1321 if (!info)
1322 return 0;
1323
1324 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Clip info:\n");
1325 for (n = 0; info[2 * n] != NULL; n++) {
1326 mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n", info[2 * n],
1327 info[2 * n + 1]);
1328 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n,
1329 info[2 * n]);
1330 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n,
1331 info[2 * n + 1]);
1332 }
1333 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
1334
1335 return 0;
1336 }
1337
1338 char *demux_info_get(demuxer_t *demuxer, const char *opt)
1339 {
1340 int i;
1341 char **info = demuxer->info;
1342
1343 for (i = 0; info && info[2 * i] != NULL; i++) {
1344 if (!strcasecmp(opt, info[2 * i]))
1345 return info[2 * i + 1];
1346 }
1347
1348 return NULL;
1349 }
1350
1351 int demux_control(demuxer_t *demuxer, int cmd, void *arg)
1352 {
1353
1354 if (demuxer->desc->control)
1355 return demuxer->desc->control(demuxer, cmd, arg);
1356
1357 return DEMUXER_CTRL_NOTIMPL;
1358 }
1359
1360
1361
1362 double demuxer_get_time_length(demuxer_t *demuxer)
1363 {
1364 double get_time_ans;
1365 sh_video_t *sh_video = demuxer->video->sh;
1366 sh_audio_t *sh_audio = demuxer->audio->sh;
1367 // <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW
1368 if (demux_control
1369 (demuxer, DEMUXER_CTRL_GET_TIME_LENGTH, (void *) &get_time_ans) <= 0) {
1370 if (sh_video && sh_video->i_bps && sh_audio && sh_audio->i_bps)
1371 get_time_ans = (double) (demuxer->movi_end -
1372 demuxer->movi_start) / (sh_video->i_bps +
1373 sh_audio->i_bps);
1374 else if (sh_video && sh_video->i_bps)
1375 get_time_ans = (double) (demuxer->movi_end -
1376 demuxer->movi_start) / sh_video->i_bps;
1377 else if (sh_audio && sh_audio->i_bps)
1378 get_time_ans = (double) (demuxer->movi_end -
1379 demuxer->movi_start) / sh_audio->i_bps;
1380 else
1381 get_time_ans = 0;
1382 }
1383 return get_time_ans;
1384 }
1385
1386 /**
1387 * \brief demuxer_get_current_time() returns the time of the current play in three possible ways:
1388 * either when the stream reader satisfies STREAM_CTRL_GET_CURRENT_TIME (e.g. dvd)
1389 * or using sh_video->pts when the former method fails
1390 * 0 otherwise
1391 * \return the current play time
1392 */
1393 int demuxer_get_current_time(demuxer_t *demuxer)
1394 {
1395 double get_time_ans = 0;
1396 sh_video_t *sh_video = demuxer->video->sh;
1397 if (demuxer->stream_pts != MP_NOPTS_VALUE)
1398 get_time_ans = demuxer->stream_pts;
1399 else if (sh_video)
1400 get_time_ans = sh_video->pts;
1401 return (int) get_time_ans;
1402 }
1403
1404 int demuxer_get_percent_pos(demuxer_t *demuxer)
1405 {
1406 int ans = 0;
1407 int res = demux_control(demuxer, DEMUXER_CTRL_GET_PERCENT_POS, &ans);
1408 int len = (demuxer->movi_end - demuxer->movi_start) / 100;
1409 if (res <= 0) {
1410 off_t pos = demuxer->filepos > 0 ? demuxer->filepos : stream_tell(demuxer->stream);
1411 if (len > 0)
1412 ans = (pos - demuxer->movi_start) / len;
1413 else
1414 ans = 0;
1415 }
1416 if (ans < 0)
1417 ans = 0;
1418 if (ans > 100)
1419 ans = 100;
1420 return ans;
1421 }
1422
1423 int demuxer_switch_audio(demuxer_t *demuxer, int index)
1424 {
1425 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &index);
1426 if (res == DEMUXER_CTRL_NOTIMPL) {
1427 struct sh_audio *sh_audio = demuxer->audio->sh;
1428 return sh_audio ? sh_audio->aid : -2;
1429 }
1430 if (demuxer->audio->id >= 0) {
1431 struct sh_audio *sh_audio = demuxer->a_streams[demuxer->audio->id];
1432 demuxer->audio->sh = sh_audio;
1433 index = sh_audio->aid; // internal MPEG demuxers don't set it right
1434 }
1435 else
1436 demuxer->audio->sh = NULL;
1437 return index;
1438 }
1439
1440 int demuxer_switch_video(demuxer_t *demuxer, int index)
1441 {
1442 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_VIDEO, &index);
1443 if (res == DEMUXER_CTRL_NOTIMPL)
1444 index = demuxer->video->id;
1445 if (demuxer->video->id >= 0)
1446 demuxer->video->sh = demuxer->v_streams[demuxer->video->id];
1447 else
1448 demuxer->video->sh = NULL;
1449 return index;
1450 }
1451
1452 int demuxer_add_attachment(demuxer_t *demuxer, struct bstr name,
1453 struct bstr type, struct bstr data)
1454 {
1455 if (!(demuxer->num_attachments % 32))
1456 demuxer->attachments = talloc_realloc(demuxer, demuxer->attachments,
1457 struct demux_attachment,
1458 demuxer->num_attachments + 32);
1459
1460 struct demux_attachment *att =
1461 demuxer->attachments + demuxer->num_attachments;
1462 att->name = talloc_strndup(demuxer->attachments, name.start, name.len);
1463 att->type = talloc_strndup(demuxer->attachments, type.start, type.len);
1464 att->data = talloc_size(demuxer->attachments, data.len);
1465 memcpy(att->data, data.start, data.len);
1466 att->data_size = data.len;
1467
1468 return demuxer->num_attachments++;
1469 }
1470
1471 int demuxer_add_chapter(demuxer_t *demuxer, struct bstr name,
1472 uint64_t start, uint64_t end)
1473 {
1474 if (!(demuxer->num_chapters % 32))
1475 demuxer->chapters = talloc_realloc(demuxer, demuxer->chapters,
1476 struct demux_chapter,
1477 demuxer->num_chapters + 32);
1478
1479 demuxer->chapters[demuxer->num_chapters].start = start;
1480 demuxer->chapters[demuxer->num_chapters].end = end;
1481 demuxer->chapters[demuxer->num_chapters].name = name.len ?
1482 talloc_strndup(demuxer->chapters, name.start, name.len) :
1483 talloc_strdup(demuxer->chapters, mp_gtext("unknown"));
1484
1485 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_ID=%d\n", demuxer->num_chapters);
1486 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_START=%"PRIu64"\n", demuxer->num_chapters, start);
1487 if (end)
1488 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_END=%"PRIu64"\n", demuxer->num_chapters, end);
1489 if (name.start)
1490 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_NAME=%.*s\n", demuxer->num_chapters, BSTR_P(name));
1491
1492 return demuxer->num_chapters++;
1493 }
1494
1495 /**
1496 * \brief demuxer_seek_chapter() seeks to a chapter in two possible ways:
1497 * either using the demuxer->chapters structure set by the demuxer
1498 * or asking help to the stream layer (e.g. dvd)
1499 * \param chapter - chapter number wished - 0-based
1500 * \param seek_pts set by the function to the pts to seek to (if demuxer->chapters is set)
1501 * \param chapter_name name of chapter found (set by this function is param is not null)
1502 * \return -1 on error, current chapter if successful
1503 */
1504
1505 int demuxer_seek_chapter(demuxer_t *demuxer, int chapter, double *seek_pts,
1506 char **chapter_name)
1507 {
1508 int ris;
1509
1510 if (!demuxer->num_chapters || !demuxer->chapters) {
1511 demux_flush(demuxer);
1512
1513 ris = stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_CHAPTER,
1514 &chapter);
1515 if (ris != STREAM_UNSUPPORTED)
1516 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1517
1518 // exit status may be ok, but main() doesn't have to seek itself
1519 // (because e.g. dvds depend on sectors, not on pts)
1520 *seek_pts = -1.0;
1521
1522 if (chapter_name) {
1523 *chapter_name = NULL;
1524 int num_chapters;
1525 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1526 &num_chapters) == STREAM_UNSUPPORTED)
1527 num_chapters = 0;
1528 if (num_chapters) {
1529 *chapter_name = talloc_size(NULL, 16);
1530 sprintf(*chapter_name, " of %3d", num_chapters);
1531 }
1532 }
1533
1534 return ris != STREAM_UNSUPPORTED ? chapter : -1;
1535 } else { // chapters structure is set in the demuxer
1536 if (chapter >= demuxer->num_chapters)
1537 return -1;
1538 if (chapter < 0)
1539 chapter = 0;
1540
1541 *seek_pts = demuxer->chapters[chapter].start / 1000.0;
1542
1543 if (chapter_name)
1544 *chapter_name = talloc_strdup(NULL, demuxer->chapters[chapter].name);
1545
1546 return chapter;
1547 }
1548 }
1549
1550 int demuxer_get_current_chapter(demuxer_t *demuxer)
1551 {
1552 int chapter = -2;
1553 if (!demuxer->num_chapters || !demuxer->chapters) {
1554 if (stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_CHAPTER,
1555 &chapter) == STREAM_UNSUPPORTED)
1556 chapter = -2;
1557 } else {
1558 sh_video_t *sh_video = demuxer->video->sh;
1559 sh_audio_t *sh_audio = demuxer->audio->sh;
1560 uint64_t now;
1561 now = (sh_video ? sh_video->pts : (sh_audio ? sh_audio->pts : 0))
1562 * 1000 + 0.5;
1563 for (chapter = demuxer->num_chapters - 1; chapter >= 0; --chapter) {
1564 if (demuxer->chapters[chapter].start <= now)
1565 break;
1566 }
1567 }
1568 return chapter;
1569 }
1570
1571 char *demuxer_chapter_name(demuxer_t *demuxer, int chapter)
1572 {
1573 if (demuxer->num_chapters && demuxer->chapters) {
1574 if (chapter >= 0 && chapter < demuxer->num_chapters
1575 && demuxer->chapters[chapter].name)
1576 return strdup(demuxer->chapters[chapter].name);
1577 }
1578 return NULL;
1579 }
1580
1581 char *demuxer_chapter_display_name(demuxer_t *demuxer, int chapter)
1582 {
1583 char *chapter_name = demuxer_chapter_name(demuxer, chapter);
1584 if (chapter_name) {
1585 char *tmp = malloc(strlen(chapter_name) + 14);
1586 snprintf(tmp, 63, "(%d) %s", chapter + 1, chapter_name);
1587 free(chapter_name);
1588 return tmp;
1589 } else {
1590 int chapter_num = demuxer_chapter_count(demuxer);
1591 char tmp[30];
1592 if (chapter_num <= 0)
1593 sprintf(tmp, "(%d)", chapter + 1);
1594 else
1595 sprintf(tmp, "(%d) of %d", chapter + 1, chapter_num);
1596 return strdup(tmp);
1597 }
1598 }
1599
1600 float demuxer_chapter_time(demuxer_t *demuxer, int chapter, float *end)
1601 {
1602 if (demuxer->num_chapters && demuxer->chapters && chapter >= 0
1603 && chapter < demuxer->num_chapters) {
1604 if (end)
1605 *end = demuxer->chapters[chapter].end / 1000.0;
1606 return demuxer->chapters[chapter].start / 1000.0;
1607 }
1608 return -1.0;
1609 }
1610
1611 int demuxer_chapter_count(demuxer_t *demuxer)
1612 {
1613 if (!demuxer->num_chapters || !demuxer->chapters) {
1614 int num_chapters = 0;
1615 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1616 &num_chapters) == STREAM_UNSUPPORTED)
1617 num_chapters = 0;
1618 return num_chapters;
1619 } else
1620 return demuxer->num_chapters;
1621 }
1622
1623 int demuxer_angles_count(demuxer_t *demuxer)
1624 {
1625 int ris, angles = -1;
1626
1627 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_ANGLES, &angles);
1628 if (ris == STREAM_UNSUPPORTED)
1629 return -1;
1630 return angles;
1631 }
1632
1633 int demuxer_get_current_angle(demuxer_t *demuxer)
1634 {
1635 int ris, curr_angle = -1;
1636 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_ANGLE, &curr_angle);
1637 if (ris == STREAM_UNSUPPORTED)
1638 return -1;
1639 return curr_angle;
1640 }
1641
1642
1643 int demuxer_set_angle(demuxer_t *demuxer, int angle)
1644 {
1645 int ris, angles = -1;
1646
1647 angles = demuxer_angles_count(demuxer);
1648 if ((angles < 1) || (angle > angles))
1649 return -1;
1650
1651 demux_flush(demuxer);
1652
1653 ris = stream_control(demuxer->stream, STREAM_CTRL_SET_ANGLE, &angle);
1654 if (ris == STREAM_UNSUPPORTED)
1655 return -1;
1656
1657 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1658
1659 return angle;
1660 }
1661
1662 int demuxer_audio_track_by_lang(demuxer_t *d, char *lang)
1663 {
1664 int i, len;
1665 lang += strspn(lang, ",");
1666 while ((len = strcspn(lang, ",")) > 0) {
1667 for (i = 0; i < MAX_A_STREAMS; ++i) {
1668 sh_audio_t *sh = d->a_streams[i];
1669 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1670 return sh->aid;
1671 }
1672 lang += len;
1673 lang += strspn(lang, ",");
1674 }
1675 return -1;
1676 }
1677
1678 int demuxer_sub_track_by_lang(demuxer_t *d, char *lang)
1679 {
1680 int i, len;
1681 lang += strspn(lang, ",");
1682 while ((len = strcspn(lang, ",")) > 0) {
1683 for (i = 0; i < MAX_S_STREAMS; ++i) {
1684 sh_sub_t *sh = d->s_streams[i];
1685 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1686 return sh->sid;
1687 }
1688 lang += len;
1689 lang += strspn(lang, ",");
1690 }
1691 return -1;
1692 }
1693
1694 int demuxer_default_audio_track(demuxer_t *d)
1695 {
1696 int i;
1697 for (i = 0; i < MAX_A_STREAMS; ++i) {
1698 sh_audio_t *sh = d->a_streams[i];
1699 if (sh && sh->default_track)
1700 return sh->aid;
1701 }
1702 for (i = 0; i < MAX_A_STREAMS; ++i) {
1703 sh_audio_t *sh = d->a_streams[i];
1704 if (sh)
1705 return sh->aid;
1706 }
1707 return -1;
1708 }
1709
1710 int demuxer_default_sub_track(demuxer_t *d)
1711 {
1712 int i;
1713 for (i = 0; i < MAX_S_STREAMS; ++i) {
1714 sh_sub_t *sh = d->s_streams[i];
1715 if (sh && sh->default_track)
1716 return sh->sid;
1717 }
1718 return -1;
1719 }
mplayer with SMedia Glamo drivers