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Merge svn changes up to r30437
[mplayer/glamo.git] / libmpdemux / demuxer.c
blob80d4b556b38724edf1660674b11654130adc5cee
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 "help_mp.h"
34 #include "m_config.h"
35
36 #include "libvo/fastmemcpy.h"
37
38 #include "stream/stream.h"
39 #include "demuxer.h"
40 #include "stheader.h"
41 #include "mf.h"
42
43 #include "libaf/af_format.h"
44 #include "libmpcodecs/dec_teletext.h"
45
46 #include "ass_mp.h"
47
48 #ifdef CONFIG_LIBAVCODEC
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 void resync_video_stream(sh_video_t *sh_video);
64 void resync_audio_stream(sh_audio_t *sh_audio);
65
66 // Demuxer list
67 extern const demuxer_desc_t demuxer_desc_rawaudio;
68 extern const demuxer_desc_t demuxer_desc_rawvideo;
69 extern const demuxer_desc_t demuxer_desc_tv;
70 extern const demuxer_desc_t demuxer_desc_mf;
71 extern const demuxer_desc_t demuxer_desc_avi;
72 extern const demuxer_desc_t demuxer_desc_y4m;
73 extern const demuxer_desc_t demuxer_desc_asf;
74 extern const demuxer_desc_t demuxer_desc_real;
75 extern const demuxer_desc_t demuxer_desc_smjpeg;
76 extern const demuxer_desc_t demuxer_desc_matroska;
77 extern const demuxer_desc_t demuxer_desc_realaudio;
78 extern const demuxer_desc_t demuxer_desc_vqf;
79 extern const demuxer_desc_t demuxer_desc_mov;
80 extern const demuxer_desc_t demuxer_desc_vivo;
81 extern const demuxer_desc_t demuxer_desc_fli;
82 extern const demuxer_desc_t demuxer_desc_film;
83 extern const demuxer_desc_t demuxer_desc_roq;
84 extern const demuxer_desc_t demuxer_desc_gif;
85 extern const demuxer_desc_t demuxer_desc_ogg;
86 extern const demuxer_desc_t demuxer_desc_avs;
87 extern const demuxer_desc_t demuxer_desc_pva;
88 extern const demuxer_desc_t demuxer_desc_nsv;
89 extern const demuxer_desc_t demuxer_desc_mpeg_ts;
90 extern const demuxer_desc_t demuxer_desc_lmlm4;
91 extern const demuxer_desc_t demuxer_desc_mpeg_ps;
92 extern const demuxer_desc_t demuxer_desc_mpeg_pes;
93 extern const demuxer_desc_t demuxer_desc_mpeg_es;
94 extern const demuxer_desc_t demuxer_desc_mpeg_gxf;
95 extern const demuxer_desc_t demuxer_desc_mpeg4_es;
96 extern const demuxer_desc_t demuxer_desc_h264_es;
97 extern const demuxer_desc_t demuxer_desc_rawdv;
98 extern const demuxer_desc_t demuxer_desc_mpc;
99 extern const demuxer_desc_t demuxer_desc_audio;
100 extern const demuxer_desc_t demuxer_desc_xmms;
101 extern const demuxer_desc_t demuxer_desc_mpeg_ty;
102 extern const demuxer_desc_t demuxer_desc_rtp;
103 extern const demuxer_desc_t demuxer_desc_rtp_nemesi;
104 extern const demuxer_desc_t demuxer_desc_lavf;
105 extern const demuxer_desc_t demuxer_desc_lavf_preferred;
106 extern const demuxer_desc_t demuxer_desc_aac;
107 extern const demuxer_desc_t demuxer_desc_nut;
108 extern const demuxer_desc_t demuxer_desc_mng;
109
110 /* Please do not add any new demuxers here. If you want to implement a new
111 * demuxer, add it to libavformat, except for wrappers around external
112 * libraries and demuxers requiring binary support. */
113
114 const demuxer_desc_t *const demuxer_list[] = {
115 &demuxer_desc_rawaudio,
116 &demuxer_desc_rawvideo,
117 #ifdef CONFIG_TV
118 &demuxer_desc_tv,
119 #endif
120 &demuxer_desc_mf,
121 #ifdef CONFIG_LIBAVFORMAT
122 &demuxer_desc_lavf_preferred,
123 #endif
124 &demuxer_desc_avi,
125 &demuxer_desc_y4m,
126 &demuxer_desc_asf,
127 &demuxer_desc_nsv,
128 &demuxer_desc_real,
129 &demuxer_desc_smjpeg,
130 &demuxer_desc_matroska,
131 &demuxer_desc_realaudio,
132 &demuxer_desc_vqf,
133 &demuxer_desc_mov,
134 &demuxer_desc_vivo,
135 &demuxer_desc_fli,
136 &demuxer_desc_film,
137 &demuxer_desc_roq,
138 #ifdef CONFIG_GIF
139 &demuxer_desc_gif,
140 #endif
141 #ifdef CONFIG_OGGVORBIS
142 &demuxer_desc_ogg,
143 #endif
144 #ifdef CONFIG_WIN32DLL
145 &demuxer_desc_avs,
146 #endif
147 &demuxer_desc_pva,
148 &demuxer_desc_mpeg_ts,
149 &demuxer_desc_lmlm4,
150 &demuxer_desc_mpeg_ps,
151 &demuxer_desc_mpeg_pes,
152 &demuxer_desc_mpeg_es,
153 &demuxer_desc_mpeg_gxf,
154 &demuxer_desc_mpeg4_es,
155 &demuxer_desc_h264_es,
156 &demuxer_desc_audio,
157 &demuxer_desc_mpeg_ty,
158 #ifdef CONFIG_LIVE555
159 &demuxer_desc_rtp,
160 #endif
161 #ifdef CONFIG_LIBNEMESI
162 &demuxer_desc_rtp_nemesi,
163 #endif
164 #ifdef CONFIG_LIBAVFORMAT
165 &demuxer_desc_lavf,
166 #endif
167 #ifdef CONFIG_MUSEPACK
168 &demuxer_desc_mpc,
169 #endif
170 #ifdef CONFIG_LIBDV095
171 &demuxer_desc_rawdv,
172 #endif
173 &demuxer_desc_aac,
174 #ifdef CONFIG_LIBNUT
175 &demuxer_desc_nut,
176 #endif
177 #ifdef CONFIG_XMMS
178 &demuxer_desc_xmms,
179 #endif
180 #ifdef CONFIG_MNG
181 &demuxer_desc_mng,
182 #endif
183 /* Please do not add any new demuxers here. If you want to implement a new
184 * demuxer, add it to libavformat, except for wrappers around external
185 * libraries and demuxers requiring binary support. */
186 NULL
187 };
188
189 void free_demuxer_stream(demux_stream_t *ds)
190 {
191 ds_free_packs(ds);
192 free(ds);
193 }
194
195 demux_stream_t *new_demuxer_stream(struct demuxer *demuxer, int id)
196 {
197 demux_stream_t *ds = malloc(sizeof(demux_stream_t));
198 *ds = (demux_stream_t){
199 .id = id,
200 .demuxer = demuxer,
201 .asf_seq = -1,
202 };
203 return ds;
204 }
205
206
207 /**
208 * Get demuxer description structure for a given demuxer type
209 *
210 * @param file_format type of the demuxer
211 * @return structure for the demuxer, NULL if not found
212 */
213 static const demuxer_desc_t *get_demuxer_desc_from_type(int file_format)
214 {
215 int i;
216
217 for (i = 0; demuxer_list[i]; i++)
218 if (file_format == demuxer_list[i]->type)
219 return demuxer_list[i];
220
221 return NULL;
222 }
223
224
225 demuxer_t *new_demuxer(struct MPOpts *opts, stream_t *stream, int type,
226 int a_id, int v_id, int s_id, char *filename)
227 {
228 struct demuxer *d = talloc_zero(NULL, struct demuxer);
229 d->stream = stream;
230 d->stream_pts = MP_NOPTS_VALUE;
231 d->reference_clock = MP_NOPTS_VALUE;
232 d->movi_start = stream->start_pos;
233 d->movi_end = stream->end_pos;
234 d->seekable = 1;
235 d->synced = 0;
236 d->filepos = -1;
237 d->audio = new_demuxer_stream(d, a_id);
238 d->video = new_demuxer_stream(d, v_id);
239 d->sub = new_demuxer_stream(d, s_id);
240 d->type = type;
241 d->opts = opts;
242 if (type)
243 if (!(d->desc = get_demuxer_desc_from_type(type)))
244 mp_msg(MSGT_DEMUXER, MSGL_ERR,
245 "BUG! Invalid demuxer type in new_demuxer(), "
246 "big troubles ahead.");
247 if (filename) // Filename hack for avs_check_file
248 d->filename = strdup(filename);
249 stream_reset(stream);
250 stream_seek(stream, stream->start_pos);
251 return d;
252 }
253
254 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid)
255 {
256 if (id > MAX_S_STREAMS - 1 || id < 0) {
257 mp_msg(MSGT_DEMUXER, MSGL_WARN,
258 "Requested sub stream id overflow (%d > %d)\n", id,
259 MAX_S_STREAMS);
260 return NULL;
261 }
262 if (demuxer->s_streams[id])
263 mp_msg(MSGT_DEMUXER, MSGL_WARN, "Sub stream %i redefined\n", id);
264 else {
265 sh_sub_t *sh = calloc(1, sizeof(sh_sub_t));
266 demuxer->s_streams[id] = sh;
267 sh->sid = sid;
268 sh->opts = demuxer->opts;
269 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sid);
270 }
271 if (sid == demuxer->opts->sub_id) {
272 demuxer->sub->id = id;
273 demuxer->sub->sh = demuxer->s_streams[id];
274 }
275 return demuxer->s_streams[id];
276 }
277
278 static void free_sh_sub(sh_sub_t *sh)
279 {
280 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_sub at %p\n", sh);
281 free(sh->extradata);
282 #ifdef CONFIG_ASS
283 if (sh->ass_track)
284 ass_free_track(sh->ass_track);
285 #endif
286 free(sh->lang);
287 #ifdef CONFIG_LIBAVCODEC
288 clear_parser((sh_common_t *)sh);
289 #endif
290 free(sh);
291 }
292
293 sh_audio_t *new_sh_audio_aid(demuxer_t *demuxer, int id, int aid)
294 {
295 if (id > MAX_A_STREAMS - 1 || id < 0) {
296 mp_msg(MSGT_DEMUXER, MSGL_WARN,
297 "Requested audio stream id overflow (%d > %d)\n", id,
298 MAX_A_STREAMS);
299 return NULL;
300 }
301 if (demuxer->a_streams[id]) {
302 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Audio stream header %d redefined.\n", id);
303 } else {
304 mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found audio stream: %d\n", id);
305 sh_audio_t *sh = calloc(1, sizeof(sh_audio_t));
306 demuxer->a_streams[id] = sh;
307 sh->aid = aid;
308 sh->ds = demuxer->audio;
309 // set some defaults
310 sh->samplesize = 2;
311 sh->sample_format = AF_FORMAT_S16_NE;
312 sh->audio_out_minsize = 8192; /* default size, maybe not enough for Win32/ACM */
313 sh->pts = MP_NOPTS_VALUE;
314 sh->opts = demuxer->opts;
315 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", aid);
316 }
317 return demuxer->a_streams[id];
318 }
319
320 void free_sh_audio(demuxer_t *demuxer, int id)
321 {
322 sh_audio_t *sh = demuxer->a_streams[id];
323 demuxer->a_streams[id] = NULL;
324 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_audio at %p\n", sh);
325 free(sh->wf);
326 free(sh->codecdata);
327 free(sh->lang);
328 #ifdef CONFIG_LIBAVCODEC
329 clear_parser((sh_common_t *)sh);
330 #endif
331 free(sh);
332 }
333
334 sh_video_t *new_sh_video_vid(demuxer_t *demuxer, int id, int vid)
335 {
336 if (id > MAX_V_STREAMS - 1 || id < 0) {
337 mp_msg(MSGT_DEMUXER, MSGL_WARN,
338 "Requested video stream id overflow (%d > %d)\n", id,
339 MAX_V_STREAMS);
340 return NULL;
341 }
342 if (demuxer->v_streams[id])
343 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Video stream header %d redefined.\n", id);
344 else {
345 mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found video stream: %d\n", id);
346 sh_video_t *sh = calloc(1, sizeof *sh);
347 demuxer->v_streams[id] = sh;
348 sh->vid = vid;
349 sh->ds = demuxer->video;
350 sh->opts = demuxer->opts;
351 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_ID=%d\n", vid);
352 }
353 return demuxer->v_streams[id];
354 }
355
356 void free_sh_video(sh_video_t *sh)
357 {
358 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_video at %p\n", sh);
359 free(sh->bih);
360 #ifdef CONFIG_LIBAVCODEC
361 clear_parser((sh_common_t *)sh);
362 #endif
363 free(sh);
364 }
365
366 void free_demuxer(demuxer_t *demuxer)
367 {
368 int i;
369 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing demuxer at %p\n",
370 demuxer);
371 if (demuxer->desc->close)
372 demuxer->desc->close(demuxer);
373 // Very ugly hack to make it behave like old implementation
374 if (demuxer->desc->type == DEMUXER_TYPE_DEMUXERS)
375 goto skip_streamfree;
376 // free streams:
377 for (i = 0; i < MAX_A_STREAMS; i++)
378 if (demuxer->a_streams[i])
379 free_sh_audio(demuxer, i);
380 for (i = 0; i < MAX_V_STREAMS; i++)
381 if (demuxer->v_streams[i])
382 free_sh_video(demuxer->v_streams[i]);
383 for (i = 0; i < MAX_S_STREAMS; i++)
384 if (demuxer->s_streams[i])
385 free_sh_sub(demuxer->s_streams[i]);
386 // free demuxers:
387 free_demuxer_stream(demuxer->audio);
388 free_demuxer_stream(demuxer->video);
389 free_demuxer_stream(demuxer->sub);
390 skip_streamfree:
391 if (demuxer->info) {
392 for (i = 0; demuxer->info[i] != NULL; i++)
393 free(demuxer->info[i]);
394 free(demuxer->info);
395 }
396 free(demuxer->filename);
397 if (demuxer->chapters) {
398 for (i = 0; i < demuxer->num_chapters; i++)
399 free(demuxer->chapters[i].name);
400 free(demuxer->chapters);
401 }
402 if (demuxer->attachments) {
403 for (i = 0; i < demuxer->num_attachments; i++) {
404 free(demuxer->attachments[i].name);
405 free(demuxer->attachments[i].type);
406 free(demuxer->attachments[i].data);
407 }
408 free(demuxer->attachments);
409 }
410 if (demuxer->teletext)
411 teletext_control(demuxer->teletext, TV_VBI_CONTROL_STOP, NULL);
412 talloc_free(demuxer);
413 }
414
415
416 static void ds_add_packet_internal(demux_stream_t *ds, demux_packet_t *dp)
417 {
418 // append packet to DS stream:
419 ++ds->packs;
420 ds->bytes += dp->len;
421 if (ds->last) {
422 // next packet in stream
423 ds->last->next = dp;
424 ds->last = dp;
425 } else {
426 // first packet in stream
427 ds->first = ds->last = dp;
428 }
429 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
430 "DEMUX: Append packet to %s, len=%d pts=%5.3f pos=%u [packs: A=%d V=%d]\n",
431 (ds == ds->demuxer->audio) ? "d_audio" : "d_video", dp->len,
432 dp->pts, (unsigned int) dp->pos, ds->demuxer->audio->packs,
433 ds->demuxer->video->packs);
434 }
435
436 #ifdef CONFIG_LIBAVCODEC
437 static void allocate_parser(AVCodecContext **avctx, AVCodecParserContext **parser, unsigned format)
438 {
439 enum CodecID codec_id = CODEC_ID_NONE;
440 extern int avcodec_initialized;
441 if (!avcodec_initialized) {
442 avcodec_init();
443 avcodec_register_all();
444 avcodec_initialized = 1;
445 }
446 switch (format) {
447 case 0x2000:
448 case 0x332D6361:
449 case 0x332D4341:
450 case MKTAG('d', 'n', 'e', 't'):
451 case MKTAG('s', 'a', 'c', '3'):
452 codec_id = CODEC_ID_AC3;
453 break;
454 case MKTAG('E', 'A', 'C', '3'):
455 codec_id = CODEC_ID_EAC3;
456 break;
457 case 0x2001:
458 case 0x86:
459 codec_id = CODEC_ID_DTS;
460 break;
461 case MKTAG('M', 'L', 'P', ' '):
462 codec_id = CODEC_ID_MLP;
463 break;
464 case 0x55:
465 case 0x5500736d:
466 case MKTAG('.', 'm', 'p', '3'):
467 case MKTAG('M', 'P', 'E', ' '):
468 case MKTAG('L', 'A', 'M', 'E'):
469 codec_id = CODEC_ID_MP3;
470 break;
471 case 0x50:
472 case MKTAG('.', 'm', 'p', '2'):
473 case MKTAG('.', 'm', 'p', '1'):
474 codec_id = CODEC_ID_MP2;
475 break;
476 case MKTAG('T', 'R', 'H', 'D'):
477 codec_id = CODEC_ID_TRUEHD;
478 break;
479 }
480 if (codec_id != CODEC_ID_NONE) {
481 *avctx = avcodec_alloc_context();
482 if (!*avctx)
483 return;
484 *parser = av_parser_init(codec_id);
485 if (!*parser)
486 av_freep(avctx);
487 }
488 }
489
490 static void get_parser(sh_common_t *sh, AVCodecContext **avctx, AVCodecParserContext **parser)
491 {
492 *avctx = NULL;
493 *parser = NULL;
494
495 if (!sh || !sh->needs_parsing)
496 return;
497
498 *avctx = sh->avctx;
499 *parser = sh->parser;
500 if (*parser)
501 return;
502
503 allocate_parser(avctx, parser, sh->format);
504 sh->avctx = *avctx;
505 sh->parser = *parser;
506 }
507
508 int ds_parse(demux_stream_t *ds, uint8_t **buffer, int *len, double pts, off_t pos)
509 {
510 AVCodecContext *avctx;
511 AVCodecParserContext *parser;
512 get_parser(ds->sh, &avctx, &parser);
513 if (!parser)
514 return *len;
515 return av_parser_parse2(parser, avctx, buffer, len, *buffer, *len, pts, pts, pos);
516 }
517
518 static void clear_parser(sh_common_t *sh)
519 {
520 av_parser_close(sh->parser);
521 sh->parser = NULL;
522 av_freep(&sh->avctx);
523 }
524
525 void ds_clear_parser(demux_stream_t *ds)
526 {
527 if (!ds->sh)
528 return;
529 clear_parser(ds->sh);
530 }
531 #endif
532
533 void ds_add_packet(demux_stream_t *ds, demux_packet_t *dp)
534 {
535 #if PARSE_ON_ADD && defined(CONFIG_LIBAVCODEC)
536 int len = dp->len;
537 int pos = 0;
538 while (len > 0) {
539 uint8_t *parsed_start = dp->buffer + pos;
540 int parsed_len = len;
541 int consumed = ds_parse(ds->sh, &parsed_start, &parsed_len, dp->pts, dp->pos);
542 pos += consumed;
543 len -= consumed;
544 if (parsed_start == dp->buffer && parsed_len == dp->len) {
545 ds_add_packet_internal(ds, dp);
546 } else if (parsed_len) {
547 demux_packet_t *dp2 = new_demux_packet(parsed_len);
548 dp2->pos = dp->pos;
549 dp2->pts = dp->pts; // should be parser->pts but that works badly
550 memcpy(dp2->buffer, parsed_start, parsed_len);
551 ds_add_packet_internal(ds, dp2);
552 }
553 }
554 #else
555 ds_add_packet_internal(ds, dp);
556 #endif
557 }
558
559 void ds_read_packet(demux_stream_t *ds, stream_t *stream, int len,
560 double pts, off_t pos, int flags)
561 {
562 demux_packet_t *dp = new_demux_packet(len);
563 len = stream_read(stream, dp->buffer, len);
564 resize_demux_packet(dp, len);
565 dp->pts = pts;
566 dp->pos = pos;
567 dp->flags = flags;
568 // append packet to DS stream:
569 ds_add_packet(ds, dp);
570 }
571
572 // return value:
573 // 0 = EOF or no stream found or invalid type
574 // 1 = successfully read a packet
575
576 int demux_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
577 {
578 // Note: parameter 'ds' can be NULL!
579 return demux->desc->fill_buffer(demux, ds);
580 }
581
582 // return value:
583 // 0 = EOF
584 // 1 = successful
585 #define MAX_ACUMULATED_PACKETS 64
586 int ds_fill_buffer(demux_stream_t *ds)
587 {
588 demuxer_t *demux = ds->demuxer;
589 if (ds->current)
590 free_demux_packet(ds->current);
591 ds->current = NULL;
592 if (mp_msg_test(MSGT_DEMUXER, MSGL_DBG3)) {
593 if (ds == demux->audio)
594 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
595 "ds_fill_buffer(d_audio) called\n");
596 else if (ds == demux->video)
597 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
598 "ds_fill_buffer(d_video) called\n");
599 else if (ds == demux->sub)
600 mp_dbg(MSGT_DEMUXER, MSGL_DBG3, "ds_fill_buffer(d_sub) called\n");
601 else
602 mp_dbg(MSGT_DEMUXER, MSGL_DBG3,
603 "ds_fill_buffer(unknown 0x%X) called\n", (unsigned int) ds);
604 }
605 while (1) {
606 if (ds->packs) {
607 demux_packet_t *p = ds->first;
608 #if 0
609 if (demux->reference_clock != MP_NOPTS_VALUE) {
610 if ( p->pts != MP_NOPTS_VALUE
611 && p->pts > demux->reference_clock
612 && ds->packs < MAX_ACUMULATED_PACKETS) {
613 if (demux_fill_buffer(demux, ds))
614 continue;
615 }
616 }
617 #endif
618 // copy useful data:
619 ds->buffer = p->buffer;
620 ds->buffer_pos = 0;
621 ds->buffer_size = p->len;
622 ds->pos = p->pos;
623 ds->dpos += p->len; // !!!
624 ++ds->pack_no;
625 if (p->pts != MP_NOPTS_VALUE) {
626 ds->pts = p->pts;
627 ds->pts_bytes = 0;
628 }
629 ds->pts_bytes += p->len; // !!!
630 if (p->stream_pts != MP_NOPTS_VALUE)
631 demux->stream_pts = p->stream_pts;
632 ds->flags = p->flags;
633 // unlink packet:
634 ds->bytes -= p->len;
635 ds->current = p;
636 ds->first = p->next;
637 if (!ds->first)
638 ds->last = NULL;
639 --ds->packs;
640 /* The code below can set ds->eof to 1 when another stream runs
641 * out of buffer space. That makes sense because in that situation
642 * the calling code should not count on being able to demux more
643 * packets from this stream.
644 * If however the situation improves and we're called again
645 * despite the eof flag then it's better to clear it to avoid
646 * weird behavior. */
647 ds->eof = 0;
648 return 1;
649 }
650
651 #define MaybeNI _("Maybe you are playing a non-interleaved stream/file or the codec failed?\n" \
652 "For AVI files, try to force non-interleaved mode with the -ni option.\n")
653
654 if (demux->audio->packs >= MAX_PACKS
655 || demux->audio->bytes >= MAX_PACK_BYTES) {
656 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
657 demux->audio->packs, demux->audio->bytes);
658 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
659 break;
660 }
661 if (demux->video->packs >= MAX_PACKS
662 || demux->video->bytes >= MAX_PACK_BYTES) {
663 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
664 demux->video->packs, demux->video->bytes);
665 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
666 break;
667 }
668 if (!demux_fill_buffer(demux, ds)) {
669 #if PARSE_ON_ADD && defined(CONFIG_LIBAVCODEC)
670 uint8_t *parsed_start = NULL;
671 int parsed_len = 0;
672 ds_parse(ds->sh, &parsed_start, &parsed_len, MP_NOPTS_VALUE, 0);
673 if (parsed_len) {
674 demux_packet_t *dp2 = new_demux_packet(parsed_len);
675 dp2->pts = MP_NOPTS_VALUE;
676 memcpy(dp2->buffer, parsed_start, parsed_len);
677 ds_add_packet_internal(ds, dp2);
678 continue;
679 }
680 #endif
681 mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
682 "ds_fill_buffer()->demux_fill_buffer() failed\n");
683 break; // EOF
684 }
685 }
686 ds->buffer_pos = ds->buffer_size = 0;
687 ds->buffer = NULL;
688 mp_msg(MSGT_DEMUXER, MSGL_V,
689 "ds_fill_buffer: EOF reached (stream: %s) \n",
690 ds == demux->audio ? "audio" : "video");
691 ds->eof = 1;
692 return 0;
693 }
694
695 int demux_read_data(demux_stream_t *ds, unsigned char *mem, int len)
696 {
697 int x;
698 int bytes = 0;
699 while (len > 0) {
700 x = ds->buffer_size - ds->buffer_pos;
701 if (x == 0) {
702 if (!ds_fill_buffer(ds))
703 return bytes;
704 } else {
705 if (x > len)
706 x = len;
707 if (mem)
708 fast_memcpy(mem + bytes, &ds->buffer[ds->buffer_pos], x);
709 bytes += x;
710 len -= x;
711 ds->buffer_pos += x;
712 }
713 }
714 return bytes;
715 }
716
717 /**
718 * \brief read data until the given 3-byte pattern is encountered, up to maxlen
719 * \param mem memory to read data into, may be NULL to discard data
720 * \param maxlen maximum number of bytes to read
721 * \param read number of bytes actually read
722 * \param pattern pattern to search for (lowest 8 bits are ignored)
723 * \return whether pattern was found
724 */
725 int demux_pattern_3(demux_stream_t *ds, unsigned char *mem, int maxlen,
726 int *read, uint32_t pattern)
727 {
728 register uint32_t head = 0xffffff00;
729 register uint32_t pat = pattern & 0xffffff00;
730 int total_len = 0;
731 do {
732 register unsigned char *ds_buf = &ds->buffer[ds->buffer_size];
733 int len = ds->buffer_size - ds->buffer_pos;
734 register long pos = -len;
735 if (unlikely(pos >= 0)) { // buffer is empty
736 ds_fill_buffer(ds);
737 continue;
738 }
739 do {
740 head |= ds_buf[pos];
741 head <<= 8;
742 } while (++pos && head != pat);
743 len += pos;
744 if (total_len + len > maxlen)
745 len = maxlen - total_len;
746 len = demux_read_data(ds, mem ? &mem[total_len] : NULL, len);
747 total_len += len;
748 } while ((head != pat || total_len < 3) && total_len < maxlen && !ds->eof);
749 if (read)
750 *read = total_len;
751 return total_len >= 3 && head == pat;
752 }
753
754 void ds_free_packs(demux_stream_t *ds)
755 {
756 demux_packet_t *dp = ds->first;
757 while (dp) {
758 demux_packet_t *dn = dp->next;
759 free_demux_packet(dp);
760 dp = dn;
761 }
762 if (ds->asf_packet) {
763 // free unfinished .asf fragments:
764 free(ds->asf_packet->buffer);
765 free(ds->asf_packet);
766 ds->asf_packet = NULL;
767 }
768 ds->first = ds->last = NULL;
769 ds->packs = 0; // !!!!!
770 ds->bytes = 0;
771 if (ds->current)
772 free_demux_packet(ds->current);
773 ds->current = NULL;
774 ds->buffer = NULL;
775 ds->buffer_pos = ds->buffer_size;
776 ds->pts = 0;
777 ds->pts_bytes = 0;
778 }
779
780 int ds_get_packet(demux_stream_t *ds, unsigned char **start)
781 {
782 int len;
783 if (ds->buffer_pos >= ds->buffer_size) {
784 if (!ds_fill_buffer(ds)) {
785 // EOF
786 *start = NULL;
787 return -1;
788 }
789 }
790 len = ds->buffer_size - ds->buffer_pos;
791 *start = &ds->buffer[ds->buffer_pos];
792 ds->buffer_pos += len;
793 return len;
794 }
795
796 int ds_get_packet_pts(demux_stream_t *ds, unsigned char **start, double *pts)
797 {
798 int len;
799 *pts = MP_NOPTS_VALUE;
800 len = ds_get_packet(ds, start);
801 if (len < 0)
802 return len;
803 // Return pts unless this read starts from the middle of a packet
804 if (len == ds->buffer_pos)
805 *pts = ds->current->pts;
806 return len;
807 }
808
809 int ds_get_packet_sub(demux_stream_t *ds, unsigned char **start)
810 {
811 int len;
812 if (ds->buffer_pos >= ds->buffer_size) {
813 *start = NULL;
814 if (!ds->packs)
815 return -1; // no sub
816 if (!ds_fill_buffer(ds))
817 return -1; // EOF
818 }
819 len = ds->buffer_size - ds->buffer_pos;
820 *start = &ds->buffer[ds->buffer_pos];
821 ds->buffer_pos += len;
822 return len;
823 }
824
825 double ds_get_next_pts(demux_stream_t *ds)
826 {
827 demuxer_t *demux = ds->demuxer;
828 while (!ds->first) {
829 if (demux->audio->packs >= MAX_PACKS
830 || demux->audio->bytes >= MAX_PACK_BYTES) {
831 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
832 demux->audio->packs, demux->audio->bytes);
833 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
834 return MP_NOPTS_VALUE;
835 }
836 if (demux->video->packs >= MAX_PACKS
837 || demux->video->bytes >= MAX_PACK_BYTES) {
838 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
839 demux->video->packs, demux->video->bytes);
840 mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
841 return MP_NOPTS_VALUE;
842 }
843 if (!demux_fill_buffer(demux, ds))
844 return MP_NOPTS_VALUE;
845 }
846 return ds->first->pts;
847 }
848
849 // ====================================================================
850
851 void demuxer_help(void)
852 {
853 int i;
854
855 mp_msg(MSGT_DEMUXER, MSGL_INFO, "Available demuxers:\n");
856 mp_msg(MSGT_DEMUXER, MSGL_INFO, " demuxer: type info: (comment)\n");
857 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DEMUXERS\n");
858 for (i = 0; demuxer_list[i]; i++) {
859 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Don't display special demuxers
860 continue;
861 if (demuxer_list[i]->comment && strlen(demuxer_list[i]->comment))
862 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s (%s)\n",
863 demuxer_list[i]->name, demuxer_list[i]->type,
864 demuxer_list[i]->info, demuxer_list[i]->comment);
865 else
866 mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s\n",
867 demuxer_list[i]->name, demuxer_list[i]->type,
868 demuxer_list[i]->info);
869 }
870 }
871
872
873 /**
874 * Get demuxer type for a given demuxer name
875 *
876 * @param demuxer_name string with demuxer name of demuxer number
877 * @param force will be set if demuxer should be forced.
878 * May be NULL.
879 * @return DEMUXER_TYPE_xxx, -1 if error or not found
880 */
881 int get_demuxer_type_from_name(char *demuxer_name, int *force)
882 {
883 int i;
884 long type_int;
885 char *endptr;
886
887 if (!demuxer_name || !demuxer_name[0])
888 return DEMUXER_TYPE_UNKNOWN;
889 if (force)
890 *force = demuxer_name[0] == '+';
891 if (demuxer_name[0] == '+')
892 demuxer_name = &demuxer_name[1];
893 for (i = 0; demuxer_list[i]; i++) {
894 if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Can't select special demuxers from commandline
895 continue;
896 if (strcmp(demuxer_name, demuxer_list[i]->name) == 0)
897 return demuxer_list[i]->type;
898 }
899
900 // No match found, try to parse name as an integer (demuxer number)
901 type_int = strtol(demuxer_name, &endptr, 0);
902 if (*endptr) // Conversion failed
903 return -1;
904 if ((type_int > 0) && (type_int <= DEMUXER_TYPE_MAX))
905 return (int) type_int;
906
907 return -1;
908 }
909
910 int extension_parsing = 1; // 0=off 1=mixed (used only for unstable formats)
911
912 /*
913 NOTE : Several demuxers may be opened at the same time so
914 demuxers should NEVER rely on an external var to enable them
915 self. If a demuxer can't do any auto-detection it should only use
916 file_format. The user can explicitly set file_format with the -demuxer
917 option so there is really no need for another extra var.
918 For convenience an option can be added to set file_format directly
919 to the right type (ex: rawaudio,rawvideo).
920 Also the stream can override the file_format so a demuxer which rely
921 on a special stream type can set file_format at the stream level
922 (ex: tv,mf).
923 */
924
925 static demuxer_t *demux_open_stream(struct MPOpts *opts, stream_t *stream,
926 int file_format, int force, int audio_id,
927 int video_id, int dvdsub_id,
928 char *filename)
929 {
930 demuxer_t *demuxer = NULL;
931
932 sh_video_t *sh_video = NULL;
933
934 const demuxer_desc_t *demuxer_desc;
935 int fformat = 0;
936 int i;
937
938 // If somebody requested a demuxer check it
939 if (file_format) {
940 if ((demuxer_desc = get_demuxer_desc_from_type(file_format))) {
941 demuxer = new_demuxer(opts, stream, demuxer_desc->type, audio_id,
942 video_id, dvdsub_id, filename);
943 if (demuxer_desc->check_file)
944 fformat = demuxer_desc->check_file(demuxer);
945 if (force || !demuxer_desc->check_file)
946 fformat = demuxer_desc->type;
947 if (fformat != 0) {
948 if (fformat == demuxer_desc->type) {
949 demuxer_t *demux2 = demuxer;
950 // Move messages to demuxer detection code?
951 mp_tmsg(MSGT_DEMUXER, MSGL_INFO,
952 "%s file format detected.\n",
953 demuxer_desc->shortdesc);
954 file_format = fformat;
955 if (!demuxer->desc->open
956 || (demux2 = demuxer->desc->open(demuxer))) {
957 demuxer = demux2;
958 goto dmx_open;
959 }
960 } else {
961 // Format changed after check, recurse
962 free_demuxer(demuxer);
963 return demux_open_stream(opts, stream, fformat, force,
964 audio_id, video_id, dvdsub_id,
965 filename);
966 }
967 }
968 // Check failed for forced demuxer, quit
969 free_demuxer(demuxer);
970 return NULL;
971 }
972 }
973 // Test demuxers with safe file checks
974 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
975 if (demuxer_desc->safe_check) {
976 demuxer = new_demuxer(opts, stream, demuxer_desc->type, audio_id,
977 video_id, dvdsub_id, filename);
978 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
979 if (fformat == demuxer_desc->type) {
980 demuxer_t *demux2 = demuxer;
981 mp_tmsg(MSGT_DEMUXER, MSGL_INFO,
982 "%s file format detected.\n",
983 demuxer_desc->shortdesc);
984 file_format = fformat;
985 if (!demuxer->desc->open
986 || (demux2 = demuxer->desc->open(demuxer))) {
987 demuxer = demux2;
988 goto dmx_open;
989 }
990 } else {
991 if (fformat == DEMUXER_TYPE_PLAYLIST)
992 return demuxer; // handled in mplayer.c
993 // Format changed after check, recurse
994 free_demuxer(demuxer);
995 demuxer = demux_open_stream(opts, stream, fformat, force,
996 audio_id, video_id,
997 dvdsub_id, filename);
998 if (demuxer)
999 return demuxer; // done!
1000 file_format = DEMUXER_TYPE_UNKNOWN;
1001 }
1002 }
1003 free_demuxer(demuxer);
1004 demuxer = NULL;
1005 }
1006 }
1007
1008 // If no forced demuxer perform file extension based detection
1009 // Ok. We're over the stable detectable fileformats, the next ones are
1010 // a bit fuzzy. So by default (extension_parsing==1) try extension-based
1011 // detection first:
1012 if (file_format == DEMUXER_TYPE_UNKNOWN && filename
1013 && extension_parsing == 1) {
1014 file_format = demuxer_type_by_filename(filename);
1015 if (file_format != DEMUXER_TYPE_UNKNOWN) {
1016 // we like recursion :)
1017 demuxer = demux_open_stream(opts, stream, file_format, force,
1018 audio_id, video_id, dvdsub_id,
1019 filename);
1020 if (demuxer)
1021 return demuxer; // done!
1022 file_format = DEMUXER_TYPE_UNKNOWN; // continue fuzzy guessing...
1023 mp_msg(MSGT_DEMUXER, MSGL_V,
1024 "demuxer: continue fuzzy content-based format guessing...\n");
1025 }
1026 }
1027 // Try detection for all other demuxers
1028 for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
1029 if (!demuxer_desc->safe_check && demuxer_desc->check_file) {
1030 demuxer = new_demuxer(opts, stream, demuxer_desc->type, audio_id,
1031 video_id, dvdsub_id, filename);
1032 if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
1033 if (fformat == demuxer_desc->type) {
1034 demuxer_t *demux2 = demuxer;
1035 mp_tmsg(MSGT_DEMUXER, MSGL_INFO,
1036 "%s file format detected.\n",
1037 demuxer_desc->shortdesc);
1038 file_format = fformat;
1039 if (!demuxer->desc->open
1040 || (demux2 = demuxer->desc->open(demuxer))) {
1041 demuxer = demux2;
1042 goto dmx_open;
1043 }
1044 } else {
1045 if (fformat == DEMUXER_TYPE_PLAYLIST)
1046 return demuxer; // handled in mplayer.c
1047 // Format changed after check, recurse
1048 free_demuxer(demuxer);
1049 demuxer = demux_open_stream(opts, stream, fformat, force,
1050 audio_id, video_id,
1051 dvdsub_id, filename);
1052 if (demuxer)
1053 return demuxer; // done!
1054 file_format = DEMUXER_TYPE_UNKNOWN;
1055 }
1056 }
1057 free_demuxer(demuxer);
1058 demuxer = NULL;
1059 }
1060 }
1061
1062 return NULL;
1063 //====== File format recognized, set up these for compatibility: =========
1064 dmx_open:
1065
1066 demuxer->file_format = file_format;
1067
1068 if ((sh_video = demuxer->video->sh) && sh_video->bih) {
1069 int biComp = le2me_32(sh_video->bih->biCompression);
1070 mp_msg(MSGT_DEMUX, MSGL_INFO,
1071 "VIDEO: [%.4s] %dx%d %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
1072 (char *) &biComp, sh_video->bih->biWidth,
1073 sh_video->bih->biHeight, sh_video->bih->biBitCount,
1074 sh_video->fps, sh_video->i_bps * 0.008f,
1075 sh_video->i_bps / 1024.0f);
1076 }
1077 #ifdef CONFIG_ASS
1078 if (opts->ass_enabled && ass_library) {
1079 for (i = 0; i < MAX_S_STREAMS; ++i) {
1080 sh_sub_t *sh = demuxer->s_streams[i];
1081 if (sh && sh->type == 'a') {
1082 sh->ass_track = ass_new_track(ass_library);
1083 if (sh->ass_track && sh->extradata)
1084 ass_process_codec_private(sh->ass_track, sh->extradata,
1085 sh->extradata_len);
1086 } else if (sh && sh->type != 'v')
1087 sh->ass_track = ass_default_track(ass_library);
1088 }
1089 }
1090 #endif
1091 return demuxer;
1092 }
1093
1094 char *audio_stream = NULL;
1095 char *sub_stream = NULL;
1096 int audio_stream_cache = 0;
1097
1098 char *demuxer_name = NULL; // parameter from -demuxer
1099 char *audio_demuxer_name = NULL; // parameter from -audio-demuxer
1100 char *sub_demuxer_name = NULL; // parameter from -sub-demuxer
1101
1102 extern int hr_mp3_seek;
1103
1104 extern float stream_cache_min_percent;
1105 extern float stream_cache_seek_min_percent;
1106
1107 demuxer_t *demux_open(struct MPOpts *opts, stream_t *vs, int file_format,
1108 int audio_id, int video_id, int dvdsub_id,
1109 char *filename)
1110 {
1111 stream_t *as = NULL, *ss = NULL;
1112 demuxer_t *vd, *ad = NULL, *sd = NULL;
1113 demuxer_t *res;
1114 int afmt = DEMUXER_TYPE_UNKNOWN, sfmt = DEMUXER_TYPE_UNKNOWN;
1115 int demuxer_type;
1116 int audio_demuxer_type = 0, sub_demuxer_type = 0;
1117 int demuxer_force = 0, audio_demuxer_force = 0, sub_demuxer_force = 0;
1118
1119 if ((demuxer_type =
1120 get_demuxer_type_from_name(demuxer_name, &demuxer_force)) < 0) {
1121 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-demuxer %s does not exist.\n",
1122 demuxer_name);
1123 }
1124 if ((audio_demuxer_type =
1125 get_demuxer_type_from_name(audio_demuxer_name,
1126 &audio_demuxer_force)) < 0) {
1127 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-audio-demuxer %s does not exist.\n",
1128 audio_demuxer_name);
1129 }
1130 if ((sub_demuxer_type =
1131 get_demuxer_type_from_name(sub_demuxer_name,
1132 &sub_demuxer_force)) < 0) {
1133 mp_msg(MSGT_DEMUXER, MSGL_ERR, "-sub-demuxer %s does not exist.\n",
1134 sub_demuxer_name);
1135 }
1136
1137 if (audio_stream) {
1138 as = open_stream(audio_stream, 0, &afmt);
1139 if (!as) {
1140 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open audio stream: %s\n",
1141 audio_stream);
1142 return NULL;
1143 }
1144 if (audio_stream_cache) {
1145 if (!stream_enable_cache
1146 (as, audio_stream_cache * 1024,
1147 audio_stream_cache * 1024 * (stream_cache_min_percent /
1148 100.0),
1149 audio_stream_cache * 1024 * (stream_cache_seek_min_percent /
1150 100.0))) {
1151 free_stream(as);
1152 mp_msg(MSGT_DEMUXER, MSGL_ERR,
1153 "Can't enable audio stream cache\n");
1154 return NULL;
1155 }
1156 }
1157 }
1158 if (sub_stream) {
1159 ss = open_stream(sub_stream, 0, &sfmt);
1160 if (!ss) {
1161 mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open subtitle stream: %s\n",
1162 sub_stream);
1163 return NULL;
1164 }
1165 }
1166
1167 vd = demux_open_stream(opts, vs, demuxer_type ? demuxer_type : file_format,
1168 demuxer_force, audio_stream ? -2 : audio_id,
1169 video_id, sub_stream ? -2 : dvdsub_id, filename);
1170 if (!vd) {
1171 if (as)
1172 free_stream(as);
1173 if (ss)
1174 free_stream(ss);
1175 return NULL;
1176 }
1177 if (as) {
1178 ad = demux_open_stream(opts, as,
1179 audio_demuxer_type ? audio_demuxer_type : afmt,
1180 audio_demuxer_force, audio_id, -2, -2,
1181 audio_stream);
1182 if (!ad) {
1183 mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "Failed to open audio demuxer: %s\n",
1184 audio_stream);
1185 free_stream(as);
1186 } else if (ad->audio->sh
1187 && ((sh_audio_t *) ad->audio->sh)->format == 0x55) // MP3
1188 hr_mp3_seek = 1; // Enable high res seeking
1189 }
1190 if (ss) {
1191 sd = demux_open_stream(opts, ss,
1192 sub_demuxer_type ? sub_demuxer_type : sfmt,
1193 sub_demuxer_force, -2, -2, dvdsub_id,
1194 sub_stream);
1195 if (!sd) {
1196 mp_tmsg(MSGT_DEMUXER, MSGL_WARN,
1197 "Failed to open subtitle demuxer: %s\n", sub_stream);
1198 free_stream(ss);
1199 }
1200 }
1201
1202 if (ad && sd)
1203 res = new_demuxers_demuxer(vd, ad, sd);
1204 else if (ad)
1205 res = new_demuxers_demuxer(vd, ad, vd);
1206 else if (sd)
1207 res = new_demuxers_demuxer(vd, vd, sd);
1208 else
1209 res = vd;
1210
1211 opts->correct_pts = opts->user_correct_pts;
1212 if (opts->correct_pts < 0)
1213 opts->correct_pts =
1214 demux_control(res, DEMUXER_CTRL_CORRECT_PTS,
1215 NULL) == DEMUXER_CTRL_OK;
1216 return res;
1217 }
1218
1219
1220 void demux_flush(demuxer_t *demuxer)
1221 {
1222 #if PARSE_ON_ADD
1223 ds_clear_parser(demuxer->video);
1224 ds_clear_parser(demuxer->audio);
1225 ds_clear_parser(demuxer->sub);
1226 #endif
1227 ds_free_packs(demuxer->video);
1228 ds_free_packs(demuxer->audio);
1229 ds_free_packs(demuxer->sub);
1230 }
1231
1232 int demux_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay,
1233 int flags)
1234 {
1235 demux_stream_t *d_audio = demuxer->audio;
1236 demux_stream_t *d_video = demuxer->video;
1237 sh_audio_t *sh_audio = d_audio->sh;
1238 sh_video_t *sh_video = d_video->sh;
1239 double tmp = 0;
1240 double pts;
1241
1242 if (!demuxer->seekable) {
1243 if (demuxer->file_format == DEMUXER_TYPE_AVI)
1244 mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in raw AVI streams. (Index required, try with the -idx switch.)\n");
1245 #ifdef CONFIG_TV
1246 else if (demuxer->file_format == DEMUXER_TYPE_TV)
1247 mp_tmsg(MSGT_SEEK, MSGL_WARN, "TV input is not seekable! (Seeking will probably be for changing channels ;)\n");
1248 #endif
1249 else
1250 mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in this file.\n");
1251 return 0;
1252 }
1253 // clear demux buffers:
1254 demux_flush(demuxer);
1255 if (sh_audio)
1256 sh_audio->a_buffer_len = 0;
1257
1258 demuxer->stream->eof = 0;
1259 demuxer->video->eof = 0;
1260 demuxer->audio->eof = 0;
1261
1262 if (sh_video)
1263 sh_video->timer = 0; // !!!!!!
1264
1265 if (flags & SEEK_ABSOLUTE)
1266 pts = 0.0f;
1267 else {
1268 if (demuxer->stream_pts == MP_NOPTS_VALUE)
1269 goto dmx_seek;
1270 pts = demuxer->stream_pts;
1271 }
1272
1273 if (flags & SEEK_FACTOR) {
1274 if (stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH, &tmp)
1275 == STREAM_UNSUPPORTED)
1276 goto dmx_seek;
1277 pts += tmp * rel_seek_secs;
1278 } else
1279 pts += rel_seek_secs;
1280
1281 if (stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, &pts) !=
1282 STREAM_UNSUPPORTED) {
1283 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1284 return 1;
1285 }
1286
1287 dmx_seek:
1288 if (demuxer->desc->seek)
1289 demuxer->desc->seek(demuxer, rel_seek_secs, audio_delay, flags);
1290
1291 if (sh_audio)
1292 resync_audio_stream(sh_audio);
1293
1294 return 1;
1295 }
1296
1297 int demux_info_add(demuxer_t *demuxer, const char *opt, const char *param)
1298 {
1299 char **info = demuxer->info;
1300 int n = 0;
1301
1302
1303 for (n = 0; info && info[2 * n] != NULL; n++) {
1304 if (!strcasecmp(opt, info[2 * n])) {
1305 if (!strcmp(param, info[2 * n + 1])) {
1306 mp_msg(MSGT_DEMUX, MSGL_V, "Demuxer info %s set to unchanged value %s\n", opt, param);
1307 return 0;
1308 }
1309 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Demuxer info %s changed to %s\n", opt,
1310 param);
1311 free(info[2 * n + 1]);
1312 info[2 * n + 1] = strdup(param);
1313 return 0;
1314 }
1315 }
1316
1317 info = demuxer->info =
1318 (char **) realloc(info, (2 * (n + 2)) * sizeof(char *));
1319 info[2 * n] = strdup(opt);
1320 info[2 * n + 1] = strdup(param);
1321 memset(&info[2 * (n + 1)], 0, 2 * sizeof(char *));
1322
1323 return 1;
1324 }
1325
1326 int demux_info_print(demuxer_t *demuxer)
1327 {
1328 char **info = demuxer->info;
1329 int n;
1330
1331 if (!info)
1332 return 0;
1333
1334 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Clip info:\n");
1335 for (n = 0; info[2 * n] != NULL; n++) {
1336 mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n", info[2 * n],
1337 info[2 * n + 1]);
1338 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n,
1339 info[2 * n]);
1340 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n,
1341 info[2 * n + 1]);
1342 }
1343 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
1344
1345 return 0;
1346 }
1347
1348 char *demux_info_get(demuxer_t *demuxer, const char *opt)
1349 {
1350 int i;
1351 char **info = demuxer->info;
1352
1353 for (i = 0; info && info[2 * i] != NULL; i++) {
1354 if (!strcasecmp(opt, info[2 * i]))
1355 return info[2 * i + 1];
1356 }
1357
1358 return NULL;
1359 }
1360
1361 int demux_control(demuxer_t *demuxer, int cmd, void *arg)
1362 {
1363
1364 if (demuxer->desc->control)
1365 return demuxer->desc->control(demuxer, cmd, arg);
1366
1367 return DEMUXER_CTRL_NOTIMPL;
1368 }
1369
1370
1371
1372 double demuxer_get_time_length(demuxer_t *demuxer)
1373 {
1374 double get_time_ans;
1375 sh_video_t *sh_video = demuxer->video->sh;
1376 sh_audio_t *sh_audio = demuxer->audio->sh;
1377 // <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW
1378 if (demux_control
1379 (demuxer, DEMUXER_CTRL_GET_TIME_LENGTH, (void *) &get_time_ans) <= 0) {
1380 if (sh_video && sh_video->i_bps && sh_audio && sh_audio->i_bps)
1381 get_time_ans = (double) (demuxer->movi_end -
1382 demuxer->movi_start) / (sh_video->i_bps +
1383 sh_audio->i_bps);
1384 else if (sh_video && sh_video->i_bps)
1385 get_time_ans = (double) (demuxer->movi_end -
1386 demuxer->movi_start) / sh_video->i_bps;
1387 else if (sh_audio && sh_audio->i_bps)
1388 get_time_ans = (double) (demuxer->movi_end -
1389 demuxer->movi_start) / sh_audio->i_bps;
1390 else
1391 get_time_ans = 0;
1392 }
1393 return get_time_ans;
1394 }
1395
1396 /**
1397 * \brief demuxer_get_current_time() returns the time of the current play in three possible ways:
1398 * either when the stream reader satisfies STREAM_CTRL_GET_CURRENT_TIME (e.g. dvd)
1399 * or using sh_video->pts when the former method fails
1400 * 0 otherwise
1401 * \return the current play time
1402 */
1403 int demuxer_get_current_time(demuxer_t *demuxer)
1404 {
1405 double get_time_ans = 0;
1406 sh_video_t *sh_video = demuxer->video->sh;
1407 if (demuxer->stream_pts != MP_NOPTS_VALUE)
1408 get_time_ans = demuxer->stream_pts;
1409 else if (sh_video)
1410 get_time_ans = sh_video->pts;
1411 return (int) get_time_ans;
1412 }
1413
1414 int demuxer_get_percent_pos(demuxer_t *demuxer)
1415 {
1416 int ans = 0;
1417 int res = demux_control(demuxer, DEMUXER_CTRL_GET_PERCENT_POS, &ans);
1418 int len = (demuxer->movi_end - demuxer->movi_start) / 100;
1419 if (res <= 0) {
1420 off_t pos = demuxer->filepos > 0 ? demuxer->filepos : stream_tell(demuxer->stream);
1421 if (len > 0)
1422 ans = (pos - demuxer->movi_start) / len;
1423 else
1424 ans = 0;
1425 }
1426 if (ans < 0)
1427 ans = 0;
1428 if (ans > 100)
1429 ans = 100;
1430 return ans;
1431 }
1432
1433 int demuxer_switch_audio(demuxer_t *demuxer, int index)
1434 {
1435 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &index);
1436 if (res == DEMUXER_CTRL_NOTIMPL)
1437 index = demuxer->audio->id;
1438 if (demuxer->audio->id >= 0)
1439 demuxer->audio->sh = demuxer->a_streams[demuxer->audio->id];
1440 else
1441 demuxer->audio->sh = NULL;
1442 return index;
1443 }
1444
1445 int demuxer_switch_video(demuxer_t *demuxer, int index)
1446 {
1447 int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_VIDEO, &index);
1448 if (res == DEMUXER_CTRL_NOTIMPL)
1449 index = demuxer->video->id;
1450 if (demuxer->video->id >= 0)
1451 demuxer->video->sh = demuxer->v_streams[demuxer->video->id];
1452 else
1453 demuxer->video->sh = NULL;
1454 return index;
1455 }
1456
1457 int demuxer_add_attachment(demuxer_t *demuxer, const char *name,
1458 const char *type, const void *data, size_t size)
1459 {
1460 if (!(demuxer->num_attachments & 31))
1461 demuxer->attachments = realloc(demuxer->attachments,
1462 (demuxer->num_attachments + 32) * sizeof(demux_attachment_t));
1463
1464 demuxer->attachments[demuxer->num_attachments].name = strdup(name);
1465 demuxer->attachments[demuxer->num_attachments].type = strdup(type);
1466 demuxer->attachments[demuxer->num_attachments].data = malloc(size);
1467 memcpy(demuxer->attachments[demuxer->num_attachments].data, data, size);
1468 demuxer->attachments[demuxer->num_attachments].data_size = size;
1469
1470 return demuxer->num_attachments++;
1471 }
1472
1473 int demuxer_add_chapter(demuxer_t *demuxer, const char *name, uint64_t start,
1474 uint64_t end)
1475 {
1476 if (demuxer->chapters == NULL)
1477 demuxer->chapters = malloc(32 * sizeof(*demuxer->chapters));
1478 else if (!(demuxer->num_chapters % 32))
1479 demuxer->chapters = realloc(demuxer->chapters,
1480 (demuxer->num_chapters + 32) *
1481 sizeof(*demuxer->chapters));
1482
1483 demuxer->chapters[demuxer->num_chapters].start = start;
1484 demuxer->chapters[demuxer->num_chapters].end = end;
1485 demuxer->chapters[demuxer->num_chapters].name = strdup(name ? name : mp_gtext("unknown"));
1486
1487 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_ID=%d\n", demuxer->num_chapters);
1488 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_START=%"PRIu64"\n", demuxer->num_chapters, start);
1489 if (end)
1490 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_END=%"PRIu64"\n", demuxer->num_chapters, end);
1491 if (name)
1492 mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_NAME=%s\n", demuxer->num_chapters, name);
1493
1494 return demuxer->num_chapters++;
1495 }
1496
1497 /**
1498 * \brief demuxer_seek_chapter() seeks to a chapter in two possible ways:
1499 * either using the demuxer->chapters structure set by the demuxer
1500 * or asking help to the stream layer (e.g. dvd)
1501 * \param chapter - chapter number wished - 0-based
1502 * \param seek_pts set by the function to the pts to seek to (if demuxer->chapters is set)
1503 * \param chapter_name name of chapter found (set by this function is param is not null)
1504 * \return -1 on error, current chapter if successful
1505 */
1506
1507 int demuxer_seek_chapter(demuxer_t *demuxer, int chapter, double *seek_pts,
1508 char **chapter_name)
1509 {
1510 int ris;
1511 sh_video_t *sh_video = demuxer->video->sh;
1512 sh_audio_t *sh_audio = demuxer->audio->sh;
1513
1514 if (!demuxer->num_chapters || !demuxer->chapters) {
1515 demux_flush(demuxer);
1516
1517 ris = stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_CHAPTER,
1518 &chapter);
1519 if (ris != STREAM_UNSUPPORTED)
1520 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1521 if (sh_video) {
1522 ds_fill_buffer(demuxer->video);
1523 resync_video_stream(sh_video);
1524 }
1525
1526 if (sh_audio) {
1527 ds_fill_buffer(demuxer->audio);
1528 resync_audio_stream(sh_audio);
1529 }
1530 // exit status may be ok, but main() doesn't have to seek itself
1531 // (because e.g. dvds depend on sectors, not on pts)
1532 *seek_pts = -1.0;
1533
1534 if (chapter_name) {
1535 *chapter_name = NULL;
1536 int num_chapters;
1537 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1538 &num_chapters) == STREAM_UNSUPPORTED)
1539 num_chapters = 0;
1540 if (num_chapters) {
1541 *chapter_name = talloc_size(NULL, 16);
1542 sprintf(*chapter_name, " of %3d", num_chapters);
1543 }
1544 }
1545
1546 return ris != STREAM_UNSUPPORTED ? chapter : -1;
1547 } else { // chapters structure is set in the demuxer
1548 if (chapter >= demuxer->num_chapters)
1549 return -1;
1550 if (chapter < 0)
1551 chapter = 0;
1552
1553 *seek_pts = demuxer->chapters[chapter].start / 1000.0;
1554
1555 if (chapter_name)
1556 *chapter_name = talloc_strdup(NULL, demuxer->chapters[chapter].name);
1557
1558 return chapter;
1559 }
1560 }
1561
1562 int demuxer_get_current_chapter(demuxer_t *demuxer)
1563 {
1564 int chapter = -1;
1565 if (!demuxer->num_chapters || !demuxer->chapters) {
1566 if (stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_CHAPTER,
1567 &chapter) == STREAM_UNSUPPORTED)
1568 chapter = -1;
1569 } else {
1570 sh_video_t *sh_video = demuxer->video->sh;
1571 sh_audio_t *sh_audio = demuxer->audio->sh;
1572 uint64_t now;
1573 now = (sh_video ? sh_video->pts : (sh_audio ? sh_audio->pts : 0))
1574 * 1000 + 0.5;
1575 for (chapter = demuxer->num_chapters - 1; chapter >= 0; --chapter) {
1576 if (demuxer->chapters[chapter].start <= now)
1577 break;
1578 }
1579 }
1580 return chapter;
1581 }
1582
1583 char *demuxer_chapter_name(demuxer_t *demuxer, int chapter)
1584 {
1585 if (demuxer->num_chapters && demuxer->chapters) {
1586 if (chapter >= 0 && chapter < demuxer->num_chapters
1587 && demuxer->chapters[chapter].name)
1588 return strdup(demuxer->chapters[chapter].name);
1589 }
1590 return NULL;
1591 }
1592
1593 char *demuxer_chapter_display_name(demuxer_t *demuxer, int chapter)
1594 {
1595 char *chapter_name = demuxer_chapter_name(demuxer, chapter);
1596 if (chapter_name) {
1597 char *tmp = malloc(strlen(chapter_name) + 14);
1598 snprintf(tmp, 63, "(%d) %s", chapter + 1, chapter_name);
1599 free(chapter_name);
1600 return tmp;
1601 } else {
1602 int chapter_num = demuxer_chapter_count(demuxer);
1603 char tmp[30];
1604 if (chapter_num <= 0)
1605 sprintf(tmp, "(%d)", chapter + 1);
1606 else
1607 sprintf(tmp, "(%d) of %d", chapter + 1, chapter_num);
1608 return strdup(tmp);
1609 }
1610 }
1611
1612 float demuxer_chapter_time(demuxer_t *demuxer, int chapter, float *end)
1613 {
1614 if (demuxer->num_chapters && demuxer->chapters && chapter >= 0
1615 && chapter < demuxer->num_chapters) {
1616 if (end)
1617 *end = demuxer->chapters[chapter].end / 1000.0;
1618 return demuxer->chapters[chapter].start / 1000.0;
1619 }
1620 return -1.0;
1621 }
1622
1623 int demuxer_chapter_count(demuxer_t *demuxer)
1624 {
1625 if (!demuxer->num_chapters || !demuxer->chapters) {
1626 int num_chapters = 0;
1627 if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
1628 &num_chapters) == STREAM_UNSUPPORTED)
1629 num_chapters = 0;
1630 return num_chapters;
1631 } else
1632 return demuxer->num_chapters;
1633 }
1634
1635 int demuxer_angles_count(demuxer_t *demuxer)
1636 {
1637 int ris, angles = -1;
1638
1639 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_ANGLES, &angles);
1640 if (ris == STREAM_UNSUPPORTED)
1641 return -1;
1642 return angles;
1643 }
1644
1645 int demuxer_get_current_angle(demuxer_t *demuxer)
1646 {
1647 int ris, curr_angle = -1;
1648 ris = stream_control(demuxer->stream, STREAM_CTRL_GET_ANGLE, &curr_angle);
1649 if (ris == STREAM_UNSUPPORTED)
1650 return -1;
1651 return curr_angle;
1652 }
1653
1654
1655 int demuxer_set_angle(demuxer_t *demuxer, int angle)
1656 {
1657 int ris, angles = -1;
1658 sh_video_t *sh_video = demuxer->video->sh;
1659 sh_audio_t *sh_audio = demuxer->audio->sh;
1660
1661 angles = demuxer_angles_count(demuxer);
1662 if ((angles < 1) || (angle > angles))
1663 return -1;
1664
1665 demux_flush(demuxer);
1666
1667 ris = stream_control(demuxer->stream, STREAM_CTRL_SET_ANGLE, &angle);
1668 if (ris == STREAM_UNSUPPORTED)
1669 return -1;
1670
1671 demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
1672 if (sh_video) {
1673 ds_fill_buffer(demuxer->video);
1674 resync_video_stream(sh_video);
1675 }
1676
1677 if (sh_audio) {
1678 ds_fill_buffer(demuxer->audio);
1679 resync_audio_stream(sh_audio);
1680 }
1681
1682 return angle;
1683 }
1684
1685 int demuxer_audio_track_by_lang(demuxer_t *d, char *lang)
1686 {
1687 int i, len;
1688 lang += strspn(lang, ",");
1689 while ((len = strcspn(lang, ",")) > 0) {
1690 for (i = 0; i < MAX_A_STREAMS; ++i) {
1691 sh_audio_t *sh = d->a_streams[i];
1692 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1693 return sh->aid;
1694 }
1695 lang += len;
1696 lang += strspn(lang, ",");
1697 }
1698 return -1;
1699 }
1700
1701 int demuxer_sub_track_by_lang(demuxer_t *d, char *lang)
1702 {
1703 int i, len;
1704 lang += strspn(lang, ",");
1705 while ((len = strcspn(lang, ",")) > 0) {
1706 for (i = 0; i < MAX_S_STREAMS; ++i) {
1707 sh_sub_t *sh = d->s_streams[i];
1708 if (sh && sh->lang && strncmp(sh->lang, lang, len) == 0)
1709 return sh->sid;
1710 }
1711 lang += len;
1712 lang += strspn(lang, ",");
1713 }
1714 return -1;
1715 }
1716
1717 int demuxer_default_audio_track(demuxer_t *d)
1718 {
1719 int i;
1720 for (i = 0; i < MAX_A_STREAMS; ++i) {
1721 sh_audio_t *sh = d->a_streams[i];
1722 if (sh && sh->default_track)
1723 return sh->aid;
1724 }
1725 for (i = 0; i < MAX_A_STREAMS; ++i) {
1726 sh_audio_t *sh = d->a_streams[i];
1727 if (sh)
1728 return sh->aid;
1729 }
1730 return -1;
1731 }
1732
1733 int demuxer_default_sub_track(demuxer_t *d)
1734 {
1735 int i;
1736 for (i = 0; i < MAX_S_STREAMS; ++i) {
1737 sh_sub_t *sh = d->s_streams[i];
1738 if (sh && sh->default_track)
1739 return sh->sid;
1740 }
1741 return -1;
1742 }
mplayer with SMedia Glamo drivers