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subtitles: remove code trying to handle text subs with libavcodec
[mplayer/glamo.git] / libmpdemux / demux_ts.c
blob8219d03857d40237840556a0693225eaeabb6317
1 /*
2 * Demultiplexer for MPEG2 Transport Streams.
3 *
4 * Written by Nico <nsabbi@libero.it>
5 * Kind feedback is appreciated; 'sucks' and alike is not.
6 * Originally based on demux_pva.c written by Matteo Giani and FFmpeg (libavformat) sources
7 *
8 * This file is part of MPlayer.
9 *
10 * MPlayer is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * MPlayer is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 */
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28
29 #include "config.h"
30 #include "mp_msg.h"
31 #include "options.h"
32
33 #include "libmpcodecs/dec_audio.h"
34 #include "stream/stream.h"
35 #include "demuxer.h"
36 #include "parse_es.h"
37 #include "stheader.h"
38 #include "ms_hdr.h"
39 #include "mpeg_hdr.h"
40 #include "demux_ts.h"
41
42 #define TS_PH_PACKET_SIZE 192
43 #define TS_FEC_PACKET_SIZE 204
44 #define TS_PACKET_SIZE 188
45 #define NB_PID_MAX 8192
46
47 #define MAX_HEADER_SIZE 6 /* enough for PES header + length */
48 #define MAX_CHECK_SIZE 65535
49 #define NUM_CONSECUTIVE_TS_PACKETS 32
50 #define NUM_CONSECUTIVE_AUDIO_PACKETS 348
51 #define MAX_A52_FRAME_SIZE 3840
52
53 #ifndef SIZE_MAX
54 #define SIZE_MAX ((size_t)-1)
55 #endif
56
57 #define TYPE_AUDIO 1
58 #define TYPE_VIDEO 2
59 #define TYPE_SUB 3
60
61 int ts_prog;
62 int ts_keep_broken=0;
63 off_t ts_probe = 0;
64 int audio_substream_id = -1;
65
66 typedef enum
67 {
68 UNKNOWN = -1,
69 VIDEO_MPEG1 = 0x10000001,
70 VIDEO_MPEG2 = 0x10000002,
71 VIDEO_MPEG4 = 0x10000004,
72 VIDEO_H264 = 0x10000005,
73 VIDEO_AVC = mmioFOURCC('a', 'v', 'c', '1'),
74 VIDEO_DIRAC = mmioFOURCC('d', 'r', 'a', 'c'),
75 VIDEO_VC1 = mmioFOURCC('W', 'V', 'C', '1'),
76 AUDIO_MP2 = 0x50,
77 AUDIO_A52 = 0x2000,
78 AUDIO_DTS = 0x2001,
79 AUDIO_LPCM_BE = 0x10001,
80 AUDIO_AAC = mmioFOURCC('M', 'P', '4', 'A'),
81 AUDIO_AAC_LATM = mmioFOURCC('M', 'P', '4', 'L'),
82 AUDIO_TRUEHD = mmioFOURCC('T', 'R', 'H', 'D'),
83 SPU_DVD = 0x3000000,
84 SPU_DVB = 0x3000001,
85 SPU_TELETEXT = 0x3000002,
86 SPU_PGS = 0x3000003,
87 PES_PRIVATE1 = 0xBD00000,
88 SL_PES_STREAM = 0xD000000,
89 SL_SECTION = 0xD100000,
90 MP4_OD = 0xD200000,
91 } es_stream_type_t;
92
93 typedef struct {
94 uint8_t *buffer;
95 uint16_t buffer_len;
96 } ts_section_t;
97
98 typedef struct {
99 int size;
100 unsigned char *start;
101 uint16_t payload_size;
102 es_stream_type_t type, subtype;
103 double pts, last_pts;
104 int pid;
105 char lang[4];
106 int last_cc; // last cc code (-1 if first packet)
107 int is_synced;
108 ts_section_t section;
109 uint8_t *extradata;
110 int extradata_alloc, extradata_len;
111 struct {
112 uint8_t au_start, au_end, last_au_end;
113 } sl;
114 } ES_stream_t;
115
116 typedef struct {
117 void *sh;
118 int id;
119 int type;
120 } sh_av_t;
121
122 typedef struct MpegTSContext {
123 int packet_size; // raw packet size, including FEC if present e.g. 188 bytes
124 ES_stream_t *pids[NB_PID_MAX];
125 sh_av_t streams[NB_PID_MAX];
126 } MpegTSContext;
127
128
129 typedef struct {
130 demux_stream_t *ds;
131 demux_packet_t *pack;
132 int offset, buffer_size;
133 } av_fifo_t;
134
135 #define MAX_EXTRADATA_SIZE 64*1024
136 typedef struct {
137 int32_t object_type; //aka codec used
138 int32_t stream_type; //video, audio etc.
139 uint8_t buf[MAX_EXTRADATA_SIZE];
140 uint16_t buf_size;
141 uint8_t szm1;
142 } mp4_decoder_config_t;
143
144 typedef struct {
145 //flags
146 uint8_t flags;
147 uint8_t au_start;
148 uint8_t au_end;
149 uint8_t random_accesspoint;
150 uint8_t random_accesspoint_only;
151 uint8_t padding;
152 uint8_t use_ts;
153 uint8_t idle;
154 uint8_t duration;
155
156 uint32_t ts_resolution, ocr_resolution;
157 uint8_t ts_len, ocr_len, au_len, instant_bitrate_len, degr_len, au_seqnum_len, packet_seqnum_len;
158 uint32_t timescale;
159 uint16_t au_duration, cts_duration;
160 uint64_t ocr, dts, cts;
161 } mp4_sl_config_t;
162
163 typedef struct {
164 uint16_t id;
165 uint8_t flags;
166 mp4_decoder_config_t decoder;
167 mp4_sl_config_t sl;
168 } mp4_es_descr_t;
169
170 typedef struct {
171 uint16_t id;
172 uint8_t flags;
173 mp4_es_descr_t *es;
174 uint16_t es_cnt;
175 } mp4_od_t;
176
177 typedef struct {
178 uint8_t skip;
179 uint8_t table_id;
180 uint8_t ssi;
181 uint16_t section_length;
182 uint16_t ts_id;
183 uint8_t version_number;
184 uint8_t curr_next;
185 uint8_t section_number;
186 uint8_t last_section_number;
187 struct pat_progs_t {
188 uint16_t id;
189 uint16_t pmt_pid;
190 } *progs;
191 uint16_t progs_cnt;
192 ts_section_t section;
193 } pat_t;
194
195 typedef struct {
196 uint16_t progid;
197 uint8_t skip;
198 uint8_t table_id;
199 uint8_t ssi;
200 uint16_t section_length;
201 uint8_t version_number;
202 uint8_t curr_next;
203 uint8_t section_number;
204 uint8_t last_section_number;
205 uint16_t PCR_PID;
206 uint16_t prog_descr_length;
207 ts_section_t section;
208 uint16_t es_cnt;
209 struct pmt_es_t {
210 uint16_t pid;
211 uint32_t type; //it's 8 bit long, but cast to the right type as FOURCC
212 uint16_t descr_length;
213 uint8_t format_descriptor[5];
214 uint8_t lang[4];
215 uint16_t mp4_es_id;
216 } *es;
217 mp4_od_t iod, *od;
218 mp4_es_descr_t *mp4es;
219 int od_cnt, mp4es_cnt;
220 } pmt_t;
221
222 typedef struct {
223 uint64_t size;
224 float duration;
225 double first_pts;
226 double last_pts;
227 } TS_stream_info;
228
229 typedef struct {
230 MpegTSContext ts;
231 int last_pid;
232 av_fifo_t fifo[3]; //0 for audio, 1 for video, 2 for subs
233 pat_t pat;
234 pmt_t *pmt;
235 uint16_t pmt_cnt;
236 uint32_t prog;
237 uint32_t vbitrate;
238 int keep_broken;
239 int last_aid;
240 int last_vid;
241 int last_sid;
242 char packet[TS_FEC_PACKET_SIZE];
243 TS_stream_info vstr, astr;
244 } ts_priv_t;
245
246
247 typedef struct {
248 es_stream_type_t type;
249 ts_section_t section;
250 } TS_pids_t;
251
252
253 static int IS_AUDIO(es_stream_type_t type)
254 {
255 switch (type) {
256 case AUDIO_MP2:
257 case AUDIO_A52:
258 case AUDIO_LPCM_BE:
259 case AUDIO_AAC:
260 case AUDIO_AAC_LATM:
261 case AUDIO_DTS:
262 case AUDIO_TRUEHD:
263 return 1;
264 }
265 return 0;
266 }
267
268 static int IS_VIDEO(es_stream_type_t type)
269 {
270 switch (type) {
271 case VIDEO_MPEG1:
272 case VIDEO_MPEG2:
273 case VIDEO_MPEG4:
274 case VIDEO_H264:
275 case VIDEO_AVC:
276 case VIDEO_DIRAC:
277 case VIDEO_VC1:
278 return 1;
279 }
280 return 0;
281 }
282
283 static int IS_SUB(es_stream_type_t type)
284 {
285 switch (type) {
286 case SPU_DVD:
287 case SPU_DVB:
288 case SPU_PGS:
289 case SPU_TELETEXT:
290 return 1;
291 }
292 return 0;
293 }
294
295 static int ts_parse(demuxer_t *demuxer, ES_stream_t *es, unsigned char *packet, int probe);
296
297 static uint8_t get_packet_size(const unsigned char *buf, int size)
298 {
299 int i;
300
301 if (size < (TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS))
302 return 0;
303
304 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
305 {
306 if (buf[i * TS_PACKET_SIZE] != 0x47)
307 {
308 mp_msg(MSGT_DEMUX, MSGL_DBG2, "GET_PACKET_SIZE, pos %d, char: %2x\n", i, buf[i * TS_PACKET_SIZE]);
309 goto try_fec;
310 }
311 }
312 return TS_PACKET_SIZE;
313
314 try_fec:
315 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
316 {
317 if (buf[i * TS_FEC_PACKET_SIZE] != 0x47){
318 mp_msg(MSGT_DEMUX, MSGL_DBG2, "GET_PACKET_SIZE, pos %d, char: %2x\n", i, buf[i * TS_PACKET_SIZE]);
319 goto try_philips;
320 }
321 }
322 return TS_FEC_PACKET_SIZE;
323
324 try_philips:
325 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
326 {
327 if (buf[i * TS_PH_PACKET_SIZE] != 0x47)
328 return 0;
329 }
330 return TS_PH_PACKET_SIZE;
331 }
332
333 static int parse_avc_sps(uint8_t *buf, int len, int *w, int *h);
334 static inline uint8_t *pid_lang_from_pmt(ts_priv_t *priv, int pid);
335
336 static void ts_add_stream(demuxer_t * demuxer, ES_stream_t *es)
337 {
338 int i;
339 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
340
341 if(priv->ts.streams[es->pid].sh)
342 return;
343
344 if((IS_AUDIO(es->type) || IS_AUDIO(es->subtype)) && priv->last_aid+1 < MAX_A_STREAMS)
345 {
346 sh_audio_t *sh = new_sh_audio_aid(demuxer, priv->last_aid, es->pid);
347 if(sh)
348 {
349 const char *lang = pid_lang_from_pmt(priv, es->pid);
350 sh->needs_parsing = 1;
351 sh->format = IS_AUDIO(es->type) ? es->type : es->subtype;
352 sh->ds = demuxer->audio;
353
354 priv->ts.streams[es->pid].id = priv->last_aid;
355 priv->ts.streams[es->pid].sh = sh;
356 priv->ts.streams[es->pid].type = TYPE_AUDIO;
357 mp_msg(MSGT_DEMUX, MSGL_V, "\r\nADDED AUDIO PID %d, type: %x stream n. %d\r\n", es->pid, sh->format, priv->last_aid);
358 if (lang && lang[0])
359 mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_AID_%d_LANG=%s\n", es->pid, lang);
360 priv->last_aid++;
361 }
362
363 if(es->extradata && es->extradata_len)
364 {
365 sh->wf = malloc(sizeof(*sh->wf) + es->extradata_len);
366 sh->wf->cbSize = es->extradata_len;
367 memcpy(sh->wf + 1, es->extradata, es->extradata_len);
368 }
369 }
370
371 if((IS_VIDEO(es->type) || IS_VIDEO(es->subtype)) && priv->last_vid+1 < MAX_V_STREAMS)
372 {
373 sh_video_t *sh = new_sh_video_vid(demuxer, priv->last_vid, es->pid);
374 if(sh)
375 {
376 sh->format = IS_VIDEO(es->type) ? es->type : es->subtype;
377 sh->ds = demuxer->video;
378
379 priv->ts.streams[es->pid].id = priv->last_vid;
380 priv->ts.streams[es->pid].sh = sh;
381 priv->ts.streams[es->pid].type = TYPE_VIDEO;
382 mp_msg(MSGT_DEMUX, MSGL_V, "\r\nADDED VIDEO PID %d, type: %x stream n. %d\r\n", es->pid, sh->format, priv->last_vid);
383 priv->last_vid++;
384
385
386 if(sh->format == VIDEO_AVC && es->extradata && es->extradata_len)
387 {
388 int w = 0, h = 0;
389 sh->bih = calloc(1, sizeof(*sh->bih) + es->extradata_len);
390 sh->bih->biSize= sizeof(*sh->bih) + es->extradata_len;
391 sh->bih->biCompression = sh->format;
392 memcpy(sh->bih + 1, es->extradata, es->extradata_len);
393 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "EXTRADATA(%d BYTES): \n", es->extradata_len);
394 for(i = 0;i < es->extradata_len; i++)
395 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "%02x ", (int) es->extradata[i]);
396 mp_msg(MSGT_DEMUXER,MSGL_DBG2,"\n");
397 if(parse_avc_sps(es->extradata, es->extradata_len, &w, &h))
398 {
399 sh->bih->biWidth = w;
400 sh->bih->biHeight = h;
401 }
402 }
403 }
404 }
405
406 if(IS_SUB(es->type) && priv->last_sid+1 < MAX_S_STREAMS)
407 {
408 sh_sub_t *sh = new_sh_sub_sid_lang(demuxer, priv->last_sid, es->pid, pid_lang_from_pmt(priv, es->pid));
409 if (sh) {
410 switch (es->type) {
411 case SPU_DVD:
412 sh->type = 'v'; break;
413 case SPU_PGS:
414 sh->type = 'p'; break;
415 }
416 priv->ts.streams[es->pid].id = priv->last_sid;
417 priv->ts.streams[es->pid].sh = sh;
418 priv->ts.streams[es->pid].type = TYPE_SUB;
419 priv->last_sid++;
420 }
421 }
422 }
423
424 static int ts_check_file(demuxer_t * demuxer)
425 {
426 const int buf_size = (TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS);
427 unsigned char buf[TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS], done = 0, *ptr;
428 uint32_t _read, i, count = 0, is_ts;
429 int cc[NB_PID_MAX], last_cc[NB_PID_MAX], pid, cc_ok, c, good, bad;
430 uint8_t size = 0;
431 off_t pos = 0;
432 off_t init_pos;
433
434 mp_msg(MSGT_DEMUX, MSGL_V, "Checking for MPEG-TS...\n");
435
436 init_pos = stream_tell(demuxer->stream);
437 is_ts = 0;
438 while(! done)
439 {
440 i = 1;
441 c = 0;
442
443 while(((c=stream_read_char(demuxer->stream)) != 0x47)
444 && (c >= 0)
445 && (i < MAX_CHECK_SIZE)
446 && ! demuxer->stream->eof
447 ) i++;
448
449
450 if(c != 0x47)
451 {
452 mp_msg(MSGT_DEMUX, MSGL_V, "THIS DOESN'T LOOK LIKE AN MPEG-TS FILE!\n");
453 is_ts = 0;
454 done = 1;
455 continue;
456 }
457
458 pos = stream_tell(demuxer->stream) - 1;
459 buf[0] = c;
460 _read = stream_read(demuxer->stream, &buf[1], buf_size-1);
461
462 if(_read < buf_size-1)
463 {
464 mp_msg(MSGT_DEMUX, MSGL_V, "COULDN'T READ ENOUGH DATA, EXITING TS_CHECK\n");
465 stream_reset(demuxer->stream);
466 return 0;
467 }
468
469 size = get_packet_size(buf, buf_size);
470 if(size)
471 {
472 done = 1;
473 is_ts = 1;
474 }
475
476 if(pos - init_pos >= MAX_CHECK_SIZE)
477 {
478 done = 1;
479 is_ts = 0;
480 }
481 }
482
483 mp_msg(MSGT_DEMUX, MSGL_V, "TRIED UP TO POSITION %"PRIu64", FOUND %x, packet_size= %d, SEEMS A TS? %d\n", (uint64_t) pos, c, size, is_ts);
484 stream_seek(demuxer->stream, pos);
485
486 if(! is_ts)
487 return 0;
488
489 //LET'S CHECK continuity counters
490 good = bad = 0;
491 for(count = 0; count < NB_PID_MAX; count++)
492 {
493 cc[count] = last_cc[count] = -1;
494 }
495
496 for(count = 0; count < NUM_CONSECUTIVE_TS_PACKETS; count++)
497 {
498 ptr = &(buf[size * count]);
499 pid = ((ptr[1] & 0x1f) << 8) | ptr[2];
500 mp_msg(MSGT_DEMUX, MSGL_DBG2, "BUF: %02x %02x %02x %02x, PID %d, SIZE: %d \n",
501 ptr[0], ptr[1], ptr[2], ptr[3], pid, size);
502
503 if((pid == 8191) || (pid < 16))
504 continue;
505
506 cc[pid] = (ptr[3] & 0xf);
507 cc_ok = (last_cc[pid] < 0) || ((((last_cc[pid] + 1) & 0x0f) == cc[pid]));
508 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PID %d, COMPARE CC %d AND LAST_CC %d\n", pid, cc[pid], last_cc[pid]);
509 if(! cc_ok)
510 //return 0;
511 bad++;
512 else
513 good++;
514
515 last_cc[pid] = cc[pid];
516 }
517
518 mp_msg(MSGT_DEMUX, MSGL_V, "GOOD CC: %d, BAD CC: %d\n", good, bad);
519
520 if(good >= bad)
521 return size;
522 else
523 return 0;
524 }
525
526
527 static inline int32_t progid_idx_in_pmt(ts_priv_t *priv, uint16_t progid)
528 {
529 int x;
530
531 if(priv->pmt == NULL)
532 return -1;
533
534 for(x = 0; x < priv->pmt_cnt; x++)
535 {
536 if(priv->pmt[x].progid == progid)
537 return x;
538 }
539
540 return -1;
541 }
542
543
544 static inline int32_t progid_for_pid(ts_priv_t *priv, int pid, int32_t req) //finds the first program listing a pid
545 {
546 int i, j;
547 pmt_t *pmt;
548
549
550 if(priv->pmt == NULL)
551 return -1;
552
553
554 for(i=0; i < priv->pmt_cnt; i++)
555 {
556 pmt = &(priv->pmt[i]);
557
558 if(pmt->es == NULL)
559 return -1;
560
561 for(j = 0; j < pmt->es_cnt; j++)
562 {
563 if(pmt->es[j].pid == pid)
564 {
565 if((req == 0) || (req == pmt->progid))
566 return pmt->progid;
567 }
568 }
569
570 }
571 return -1;
572 }
573
574 static inline int32_t prog_pcr_pid(ts_priv_t *priv, int progid)
575 {
576 int i;
577
578 if(priv->pmt == NULL)
579 return -1;
580 for(i=0; i < priv->pmt_cnt; i++)
581 {
582 if(priv->pmt[i].progid == progid)
583 return priv->pmt[i].PCR_PID;
584 }
585 return -1;
586 }
587
588
589 static inline int pid_match_lang(ts_priv_t *priv, uint16_t pid, char *lang)
590 {
591 uint16_t i, j;
592 pmt_t *pmt;
593
594 if(priv->pmt == NULL)
595 return -1;
596
597 for(i=0; i < priv->pmt_cnt; i++)
598 {
599 pmt = &(priv->pmt[i]);
600
601 if(pmt->es == NULL)
602 return -1;
603
604 for(j = 0; j < pmt->es_cnt; j++)
605 {
606 if(pmt->es[j].pid != pid)
607 continue;
608
609 mp_msg(MSGT_DEMUXER, MSGL_V, "CMP LANG %s AND %s, pids: %d %d\n",pmt->es[j].lang, lang, pmt->es[j].pid, pid);
610 if(strncmp(pmt->es[j].lang, lang, 3) == 0)
611 {
612 return 1;
613 }
614 }
615
616 }
617
618 return -1;
619 }
620
621 typedef struct {
622 int32_t atype, vtype, stype; //types
623 int32_t apid, vpid, spid; //stream ids
624 char alang[4]; //languages
625 uint16_t prog;
626 off_t probe;
627 } tsdemux_init_t;
628
629 //second stage: returns the count of A52 syncwords found
630 static int a52_check(char *buf, int len)
631 {
632 int cnt, frame_length = 0, ok, srate;
633
634 cnt = ok = 0;
635 if(len < 8)
636 return 0;
637
638 while(cnt < len - 7)
639 {
640 if(buf[cnt] == 0x0B && buf[cnt+1] == 0x77)
641 {
642 frame_length = mp_a52_framesize(&buf[cnt], &srate);
643 if(frame_length>=7 && frame_length<=3840)
644 {
645 cnt += frame_length;
646 ok++;
647 }
648 else
649 cnt++;
650 }
651 else
652 cnt++;
653 }
654
655 mp_msg(MSGT_DEMUXER, MSGL_V, "A52_CHECK(%d input bytes), found %d frame syncwords of %d bytes length\n", len, ok, frame_length);
656 return ok;
657 }
658
659
660 static off_t ts_detect_streams(demuxer_t *demuxer, tsdemux_init_t *param)
661 {
662 int video_found = 0, audio_found = 0, sub_found = 0, i, num_packets = 0, req_apid, req_vpid, req_spid;
663 int is_audio, is_video, is_sub, has_tables;
664 int32_t p, chosen_pid = 0;
665 off_t pos=0, ret = 0, init_pos, end_pos;
666 ES_stream_t es;
667 unsigned char tmp[TS_FEC_PACKET_SIZE];
668 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
669 struct {
670 char *buf;
671 int pos;
672 } pes_priv1[8192], *pptr;
673 char *tmpbuf;
674
675 priv->last_pid = 8192; //invalid pid
676
677 req_apid = param->apid;
678 req_vpid = param->vpid;
679 req_spid = param->spid;
680
681 has_tables = 0;
682 memset(pes_priv1, 0, sizeof(pes_priv1));
683 init_pos = stream_tell(demuxer->stream);
684 mp_msg(MSGT_DEMUXER, MSGL_V, "PROBING UP TO %"PRIu64", PROG: %d\n", (uint64_t) param->probe, param->prog);
685 end_pos = init_pos + (param->probe ? param->probe : TS_MAX_PROBE_SIZE);
686 while(1)
687 {
688 pos = stream_tell(demuxer->stream);
689 if(pos > end_pos || demuxer->stream->eof)
690 break;
691
692 if(ts_parse(demuxer, &es, tmp, 1))
693 {
694 //Non PES-aligned A52 audio may escape detection if PMT is not present;
695 //in this case we try to find at least 3 A52 syncwords
696 if((es.type == PES_PRIVATE1) && (! audio_found) && req_apid > -2)
697 {
698 pptr = &pes_priv1[es.pid];
699 if(pptr->pos < 64*1024)
700 {
701 tmpbuf = realloc(pptr->buf, pptr->pos + es.size);
702 if(tmpbuf != NULL)
703 {
704 pptr->buf = tmpbuf;
705 memcpy(&(pptr->buf[ pptr->pos ]), es.start, es.size);
706 pptr->pos += es.size;
707 if(a52_check(pptr->buf, pptr->pos) > 2)
708 {
709 param->atype = AUDIO_A52;
710 param->apid = es.pid;
711 es.type = AUDIO_A52;
712 }
713 }
714 }
715 }
716
717 is_audio = IS_AUDIO(es.type) || ((es.type==SL_PES_STREAM) && IS_AUDIO(es.subtype));
718 is_video = IS_VIDEO(es.type) || ((es.type==SL_PES_STREAM) && IS_VIDEO(es.subtype));
719 is_sub = IS_SUB(es.type);
720
721
722 if((! is_audio) && (! is_video) && (! is_sub))
723 continue;
724 if(is_audio && req_apid==-2)
725 continue;
726
727 if(is_video)
728 {
729 chosen_pid = (req_vpid == es.pid);
730 if((! chosen_pid) && (req_vpid > 0))
731 continue;
732 }
733 else if(is_audio)
734 {
735 if(req_apid > 0)
736 {
737 chosen_pid = (req_apid == es.pid);
738 if(! chosen_pid)
739 continue;
740 }
741 else if(param->alang[0] > 0 && es.lang[0] > 0)
742 {
743 if(pid_match_lang(priv, es.pid, param->alang) == -1)
744 continue;
745
746 chosen_pid = 1;
747 param->apid = req_apid = es.pid;
748 }
749 }
750 else if(is_sub)
751 {
752 chosen_pid = (req_spid == es.pid);
753 if((! chosen_pid) && (req_spid > 0))
754 continue;
755 }
756
757 if(req_apid < 0 && (param->alang[0] == 0) && req_vpid < 0 && req_spid < 0)
758 chosen_pid = 1;
759
760 if((ret == 0) && chosen_pid)
761 {
762 ret = stream_tell(demuxer->stream);
763 }
764
765 p = progid_for_pid(priv, es.pid, param->prog);
766 if(p != -1)
767 {
768 has_tables++;
769 if(!param->prog && chosen_pid)
770 param->prog = p;
771 }
772
773 if((param->prog > 0) && (param->prog != p))
774 {
775 if(audio_found)
776 {
777 if(is_video && (req_vpid == es.pid))
778 {
779 param->vtype = IS_VIDEO(es.type) ? es.type : es.subtype;
780 param->vpid = es.pid;
781 video_found = 1;
782 break;
783 }
784 }
785
786 if(video_found)
787 {
788 if(is_audio && (req_apid == es.pid))
789 {
790 param->atype = IS_AUDIO(es.type) ? es.type : es.subtype;
791 param->apid = es.pid;
792 audio_found = 1;
793 break;
794 }
795 }
796
797
798 continue;
799 }
800
801
802 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "TYPE: %x, PID: %d, PROG FOUND: %d\n", es.type, es.pid, param->prog);
803
804
805 if(is_video)
806 {
807 if((req_vpid == -1) || (req_vpid == es.pid))
808 {
809 param->vtype = IS_VIDEO(es.type) ? es.type : es.subtype;
810 param->vpid = es.pid;
811 video_found = 1;
812 }
813 }
814
815
816 if(((req_vpid == -2) || (num_packets >= NUM_CONSECUTIVE_AUDIO_PACKETS)) && audio_found && !param->probe)
817 {
818 //novideo or we have at least 348 audio packets (64 KB) without video (TS with audio only)
819 param->vtype = 0;
820 break;
821 }
822
823 if(is_sub)
824 {
825 if((req_spid == -1) || (req_spid == es.pid))
826 {
827 param->stype = es.type;
828 param->spid = es.pid;
829 sub_found = 1;
830 }
831 }
832
833 if(is_audio)
834 {
835 if((req_apid == -1) || (req_apid == es.pid))
836 {
837 param->atype = IS_AUDIO(es.type) ? es.type : es.subtype;
838 param->apid = es.pid;
839 audio_found = 1;
840 }
841 }
842
843 if(audio_found && (param->apid == es.pid) && (! video_found))
844 num_packets++;
845
846 if((has_tables==0) && (video_found && audio_found) && (pos >= 1000000))
847 break;
848 }
849 }
850
851 for(i=0; i<8192; i++)
852 {
853 if(pes_priv1[i].buf != NULL)
854 {
855 free(pes_priv1[i].buf);
856 pes_priv1[i].buf = NULL;
857 pes_priv1[i].pos = 0;
858 }
859 }
860
861 if(video_found)
862 {
863 if(param->vtype == VIDEO_MPEG1)
864 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG1(pid=%d) ", param->vpid);
865 else if(param->vtype == VIDEO_MPEG2)
866 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG2(pid=%d) ", param->vpid);
867 else if(param->vtype == VIDEO_MPEG4)
868 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG4(pid=%d) ", param->vpid);
869 else if(param->vtype == VIDEO_H264)
870 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO H264(pid=%d) ", param->vpid);
871 else if(param->vtype == VIDEO_VC1)
872 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO VC1(pid=%d) ", param->vpid);
873 else if(param->vtype == VIDEO_AVC)
874 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO AVC(NAL-H264, pid=%d) ", param->vpid);
875 }
876 else
877 {
878 param->vtype = UNKNOWN;
879 //WE DIDN'T MATCH ANY VIDEO STREAM
880 mp_msg(MSGT_DEMUXER, MSGL_INFO, "NO VIDEO! ");
881 }
882
883 if(param->atype == AUDIO_MP2)
884 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO MPA(pid=%d)", param->apid);
885 else if(param->atype == AUDIO_A52)
886 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO A52(pid=%d)", param->apid);
887 else if(param->atype == AUDIO_DTS)
888 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO DTS(pid=%d)", param->apid);
889 else if(param->atype == AUDIO_LPCM_BE)
890 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO LPCM(pid=%d)", param->apid);
891 else if(param->atype == AUDIO_AAC)
892 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO AAC(pid=%d)", param->apid);
893 else if(param->atype == AUDIO_AAC_LATM)
894 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO AAC LATM(pid=%d)", param->apid);
895 else if(param->atype == AUDIO_TRUEHD)
896 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO TRUEHD(pid=%d)", param->apid);
897 else
898 {
899 audio_found = 0;
900 param->atype = UNKNOWN;
901 //WE DIDN'T MATCH ANY AUDIO STREAM, SO WE FORCE THE DEMUXER TO IGNORE AUDIO
902 mp_msg(MSGT_DEMUXER, MSGL_INFO, "NO AUDIO! ");
903 }
904
905 if(IS_SUB(param->stype))
906 mp_msg(MSGT_DEMUXER, MSGL_INFO, " SUB %s(pid=%d) ", (param->stype==SPU_DVD ? "DVD" : param->stype==SPU_DVB ? "DVB" : "Teletext"), param->spid);
907 else
908 {
909 param->stype = UNKNOWN;
910 mp_msg(MSGT_DEMUXER, MSGL_INFO, " NO SUBS (yet)! ");
911 }
912
913 if(video_found || audio_found)
914 {
915 if(!param->prog)
916 {
917 p = progid_for_pid(priv, video_found ? param->vpid : param->apid, 0);
918 if(p != -1)
919 param->prog = p;
920 }
921
922 if(demuxer->stream->eof && (ret == 0))
923 ret = init_pos;
924 mp_msg(MSGT_DEMUXER, MSGL_INFO, " PROGRAM N. %d\n", param->prog);
925 }
926 else
927 mp_msg(MSGT_DEMUXER, MSGL_INFO, "\n");
928
929
930 for(i=0; i<NB_PID_MAX; i++)
931 {
932 if(priv->ts.pids[i] != NULL)
933 {
934 priv->ts.pids[i]->payload_size = 0;
935 priv->ts.pids[i]->pts = priv->ts.pids[i]->last_pts = 0;
936 priv->ts.pids[i]->last_cc = -1;
937 priv->ts.pids[i]->is_synced = 0;
938 }
939 }
940
941 return ret;
942 }
943
944 static int parse_avc_sps(uint8_t *buf, int len, int *w, int *h)
945 {
946 int sps, sps_len;
947 unsigned char *ptr;
948 mp_mpeg_header_t picture;
949 if(len < 6)
950 return 0;
951 sps = buf[5] & 0x1f;
952 if(!sps)
953 return 0;
954 sps_len = (buf[6] << 8) | buf[7];
955 if(!sps_len || (sps_len > len - 8))
956 return 0;
957 ptr = &(buf[8]);
958 picture.display_picture_width = picture.display_picture_height = 0;
959 h264_parse_sps(&picture, ptr, len - 8);
960 if(!picture.display_picture_width || !picture.display_picture_height)
961 return 0;
962 *w = picture.display_picture_width;
963 *h = picture.display_picture_height;
964 return 1;
965 }
966
967 static demuxer_t *demux_open_ts(demuxer_t * demuxer)
968 {
969 int i;
970 uint8_t packet_size;
971 sh_video_t *sh_video;
972 sh_audio_t *sh_audio;
973 off_t start_pos;
974 tsdemux_init_t params;
975 ts_priv_t * priv = demuxer->priv;
976
977 mp_msg(MSGT_DEMUX, MSGL_V, "DEMUX OPEN, AUDIO_ID: %d, VIDEO_ID: %d, SUBTITLE_ID: %d,\n",
978 demuxer->audio->id, demuxer->video->id, demuxer->sub->id);
979
980
981 demuxer->type= DEMUXER_TYPE_MPEG_TS;
982
983
984 stream_reset(demuxer->stream);
985
986 packet_size = ts_check_file(demuxer);
987 if(!packet_size)
988 return NULL;
989
990 priv = calloc(1, sizeof(ts_priv_t));
991 if(priv == NULL)
992 {
993 mp_msg(MSGT_DEMUX, MSGL_FATAL, "DEMUX_OPEN_TS, couldn't allocate enough memory for ts->priv, exit\n");
994 return NULL;
995 }
996
997 for(i=0; i < NB_PID_MAX; i++)
998 {
999 priv->ts.pids[i] = NULL;
1000 priv->ts.streams[i].id = -3;
1001 }
1002 priv->pat.progs = NULL;
1003 priv->pat.progs_cnt = 0;
1004 priv->pat.section.buffer = NULL;
1005 priv->pat.section.buffer_len = 0;
1006
1007 priv->pmt = NULL;
1008 priv->pmt_cnt = 0;
1009
1010 priv->keep_broken = ts_keep_broken;
1011 priv->ts.packet_size = packet_size;
1012
1013
1014 demuxer->priv = priv;
1015 if(demuxer->stream->type != STREAMTYPE_FILE)
1016 demuxer->seekable = 1;
1017 else
1018 demuxer->seekable = 1;
1019
1020
1021 params.atype = params.vtype = params.stype = UNKNOWN;
1022 params.apid = demuxer->audio->id;
1023 params.vpid = demuxer->video->id;
1024 params.spid = demuxer->sub->id;
1025 params.prog = ts_prog;
1026 params.probe = ts_probe;
1027
1028 if(demuxer->opts->audio_lang != NULL)
1029 {
1030 strncpy(params.alang, demuxer->opts->audio_lang, 3);
1031 params.alang[3] = 0;
1032 }
1033 else
1034 memset(params.alang, 0, 4);
1035
1036 start_pos = ts_detect_streams(demuxer, &params);
1037
1038 demuxer->sub->id = params.spid;
1039 priv->prog = params.prog;
1040
1041 if(params.vtype != UNKNOWN)
1042 {
1043 ts_add_stream(demuxer, priv->ts.pids[params.vpid]);
1044 sh_video = priv->ts.streams[params.vpid].sh;
1045 demuxer->video->id = priv->ts.streams[params.vpid].id;
1046 sh_video->ds = demuxer->video;
1047 sh_video->format = params.vtype;
1048 demuxer->video->sh = sh_video;
1049 }
1050
1051 if(params.atype != UNKNOWN)
1052 {
1053 ES_stream_t *es = priv->ts.pids[params.apid];
1054
1055 if(!IS_AUDIO(es->type) && !IS_AUDIO(es->subtype) && IS_AUDIO(params.atype)) es->subtype = params.atype;
1056 ts_add_stream(demuxer, priv->ts.pids[params.apid]);
1057 sh_audio = priv->ts.streams[params.apid].sh;
1058 demuxer->audio->id = priv->ts.streams[params.apid].id;
1059 sh_audio->ds = demuxer->audio;
1060 sh_audio->format = params.atype;
1061 demuxer->audio->sh = sh_audio;
1062 }
1063
1064
1065 mp_msg(MSGT_DEMUXER,MSGL_V, "Opened TS demuxer, audio: %x(pid %d), video: %x(pid %d)...POS=%"PRIu64", PROBE=%"PRIu64"\n", params.atype, demuxer->audio->id, params.vtype, demuxer->video->id, (uint64_t) start_pos, ts_probe);
1066
1067
1068 start_pos = start_pos <= priv->ts.packet_size ?
1069 demuxer->stream->start_pos :
1070 start_pos - priv->ts.packet_size;
1071 demuxer->movi_start = start_pos;
1072 demuxer->reference_clock = MP_NOPTS_VALUE;
1073 stream_reset(demuxer->stream);
1074 stream_seek(demuxer->stream, start_pos); //IF IT'S FROM A PIPE IT WILL FAIL, BUT WHO CARES?
1075
1076
1077 priv->last_pid = 8192; //invalid pid
1078
1079 for(i = 0; i < 3; i++)
1080 {
1081 priv->fifo[i].pack = NULL;
1082 priv->fifo[i].offset = 0;
1083 }
1084 priv->fifo[0].ds = demuxer->audio;
1085 priv->fifo[1].ds = demuxer->video;
1086 priv->fifo[2].ds = demuxer->sub;
1087
1088 priv->fifo[0].buffer_size = 1536;
1089 priv->fifo[1].buffer_size = 32767;
1090 priv->fifo[2].buffer_size = 32767;
1091
1092 priv->pat.section.buffer_len = 0;
1093 for(i = 0; i < priv->pmt_cnt; i++)
1094 priv->pmt[i].section.buffer_len = 0;
1095
1096 demuxer->filepos = stream_tell(demuxer->stream);
1097 return demuxer;
1098 }
1099
1100 static void demux_close_ts(demuxer_t * demuxer)
1101 {
1102 uint16_t i;
1103 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
1104
1105 if(priv)
1106 {
1107 free(priv->pat.section.buffer);
1108 free(priv->pat.progs);
1109
1110 if(priv->pmt)
1111 {
1112 for(i = 0; i < priv->pmt_cnt; i++)
1113 {
1114 free(priv->pmt[i].section.buffer);
1115 free(priv->pmt[i].es);
1116 }
1117 free(priv->pmt);
1118 }
1119 for (i = 0; i < NB_PID_MAX; i++)
1120 {
1121 free(priv->ts.pids[i]);
1122 priv->ts.pids[i] = NULL;
1123 }
1124 for (i = 0; i < 3; i++)
1125 {
1126 if (priv->fifo[i].pack)
1127 free_demux_packet(priv->fifo[i].pack);
1128 priv->fifo[i].pack = NULL;
1129 }
1130 free(priv);
1131 }
1132 demuxer->priv=NULL;
1133 }
1134
1135
1136 #define getbits mp_getbits
1137
1138 static int mp4_parse_sl_packet(pmt_t *pmt, uint8_t *buf, uint16_t packet_len, int pid, ES_stream_t *pes_es)
1139 {
1140 int i, n, m, mp4_es_id = -1;
1141 uint64_t v = 0;
1142 uint32_t pl_size = 0;
1143 int deg_flag = 0;
1144 mp4_es_descr_t *es = NULL;
1145 mp4_sl_config_t *sl = NULL;
1146 uint8_t au_start = 0, au_end = 0, rap_flag = 0, ocr_flag = 0, padding = 0, padding_bits = 0, idle = 0;
1147
1148 pes_es->is_synced = 0;
1149 mp_msg(MSGT_DEMUXER,MSGL_V, "mp4_parse_sl_packet, pid: %d, pmt: %pm, packet_len: %d\n", pid, pmt, packet_len);
1150 if(! pmt || !packet_len)
1151 return 0;
1152
1153 for(i = 0; i < pmt->es_cnt; i++)
1154 {
1155 if(pmt->es[i].pid == pid)
1156 mp4_es_id = pmt->es[i].mp4_es_id;
1157 }
1158 if(mp4_es_id < 0)
1159 return -1;
1160
1161 for(i = 0; i < pmt->mp4es_cnt; i++)
1162 {
1163 if(pmt->mp4es[i].id == mp4_es_id)
1164 es = &(pmt->mp4es[i]);
1165 }
1166 if(! es)
1167 return -1;
1168
1169 pes_es->subtype = es->decoder.object_type;
1170
1171 sl = &(es->sl);
1172 if(!sl)
1173 return -1;
1174
1175 //now es is the complete es_descriptor of out mp4 ES stream
1176 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "ID: %d, FLAGS: 0x%x, subtype: %x\n", es->id, sl->flags, pes_es->subtype);
1177
1178 n = 0;
1179 if(sl->au_start)
1180 pes_es->sl.au_start = au_start = getbits(buf, n++, 1);
1181 else
1182 pes_es->sl.au_start = (pes_es->sl.last_au_end ? 1 : 0);
1183 if(sl->au_end)
1184 pes_es->sl.au_end = au_end = getbits(buf, n++, 1);
1185
1186 if(!sl->au_start && !sl->au_end)
1187 {
1188 pes_es->sl.au_start = pes_es->sl.au_end = au_start = au_end = 1;
1189 }
1190 pes_es->sl.last_au_end = pes_es->sl.au_end;
1191
1192
1193 if(sl->ocr_len > 0)
1194 ocr_flag = getbits(buf, n++, 1);
1195 if(sl->idle)
1196 idle = getbits(buf, n++, 1);
1197 if(sl->padding)
1198 padding = getbits(buf, n++, 1);
1199 if(padding)
1200 {
1201 padding_bits = getbits(buf, n, 3);
1202 n += 3;
1203 }
1204
1205 if(idle || (padding && !padding_bits))
1206 {
1207 pes_es->payload_size = 0;
1208 return -1;
1209 }
1210
1211 //(! idle && (!padding || padding_bits != 0)) is true
1212 n += sl->packet_seqnum_len;
1213 if(sl->degr_len)
1214 deg_flag = getbits(buf, n++, 1);
1215 if(deg_flag)
1216 n += sl->degr_len;
1217
1218 if(ocr_flag)
1219 {
1220 n += sl->ocr_len;
1221 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "OCR: %d bits\n", sl->ocr_len);
1222 }
1223
1224 if(packet_len * 8 <= n)
1225 return -1;
1226
1227 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "\nAU_START: %d, AU_END: %d\n", au_start, au_end);
1228 if(au_start)
1229 {
1230 int dts_flag = 0, cts_flag = 0, ib_flag = 0;
1231
1232 if(sl->random_accesspoint)
1233 rap_flag = getbits(buf, n++, 1);
1234
1235 //check commented because it seems it's rarely used, and we need this flag set in case of au_start
1236 //the decoder will eventually discard the payload if it can't decode it
1237 //if(rap_flag || sl->random_accesspoint_only)
1238 pes_es->is_synced = 1;
1239
1240 n += sl->au_seqnum_len;
1241 if(packet_len * 8 <= n+8)
1242 return -1;
1243 if(sl->use_ts)
1244 {
1245 dts_flag = getbits(buf, n++, 1);
1246 cts_flag = getbits(buf, n++, 1);
1247 }
1248 if(sl->instant_bitrate_len)
1249 ib_flag = getbits(buf, n++, 1);
1250 if(packet_len * 8 <= n+8)
1251 return -1;
1252 if(dts_flag && (sl->ts_len > 0))
1253 {
1254 n += sl->ts_len;
1255 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "DTS: %d bits\n", sl->ts_len);
1256 }
1257 if(packet_len * 8 <= n+8)
1258 return -1;
1259 if(cts_flag && (sl->ts_len > 0))
1260 {
1261 int i = 0, m;
1262
1263 while(i < sl->ts_len)
1264 {
1265 m = FFMIN(8, sl->ts_len - i);
1266 v |= getbits(buf, n, m);
1267 if(sl->ts_len - i > 8)
1268 v <<= 8;
1269 i += m;
1270 n += m;
1271 if(packet_len * 8 <= n+8)
1272 return -1;
1273 }
1274
1275 pes_es->pts = (double) v / (double) sl->ts_resolution;
1276 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "CTS: %d bits, value: %"PRIu64"/%d = %.3f\n", sl->ts_len, v, sl->ts_resolution, pes_es->pts);
1277 }
1278
1279
1280 i = 0;
1281 pl_size = 0;
1282 while(i < sl->au_len)
1283 {
1284 m = FFMIN(8, sl->au_len - i);
1285 pl_size |= getbits(buf, n, m);
1286 if(sl->au_len - i > 8)
1287 pl_size <<= 8;
1288 i += m;
1289 n += m;
1290 if(packet_len * 8 <= n+8)
1291 return -1;
1292 }
1293 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "AU_LEN: %u (%d bits)\n", pl_size, sl->au_len);
1294 if(ib_flag)
1295 n += sl->instant_bitrate_len;
1296 }
1297
1298 m = (n+7)/8;
1299 if(0 < pl_size && pl_size < pes_es->payload_size)
1300 pes_es->payload_size = pl_size;
1301
1302 mp_msg(MSGT_DEMUXER,MSGL_V, "mp4_parse_sl_packet, n=%d, m=%d, size from pes hdr: %u, sl hdr size: %u, RAP FLAGS: %d/%d\n",
1303 n, m, pes_es->payload_size, pl_size, (int) rap_flag, (int) sl->random_accesspoint_only);
1304
1305 return m;
1306 }
1307
1308 //this function parses the extension fields in the PES header and returns the substream_id, or -1 in case of errors
1309 static int parse_pes_extension_fields(unsigned char *p, int pkt_len)
1310 {
1311 int skip;
1312 unsigned char flags;
1313
1314 if(!(p[7] & 0x1)) //no extension_field
1315 return -1;
1316 skip = 9;
1317 if(p[7] & 0x80)
1318 {
1319 skip += 5;
1320 if(p[7] & 0x40)
1321 skip += 5;
1322 }
1323 if(p[7] & 0x20) //escr_flag
1324 skip += 6;
1325 if(p[7] & 0x10) //es_rate_flag
1326 skip += 3;
1327 if(p[7] & 0x08)//dsm_trick_mode is unsupported, skip
1328 {
1329 skip = 0;//don't let's parse the extension fields
1330 }
1331 if(p[7] & 0x04) //additional_copy_info
1332 skip += 1;
1333 if(p[7] & 0x02) //pes_crc_flag
1334 skip += 2;
1335 if(skip >= pkt_len) //too few bytes
1336 return -1;
1337 flags = p[skip];
1338 skip++;
1339 if(flags & 0x80) //pes_private_data_flag
1340 skip += 16;
1341 if(skip >= pkt_len)
1342 return -1;
1343 if(flags & 0x40) //pack_header_field_flag
1344 {
1345 unsigned char l = p[skip];
1346 skip += l;
1347 }
1348 if(flags & 0x20) //program_packet_sequence_counter
1349 skip += 2;
1350 if(flags & 0x10) //p_std
1351 skip += 2;
1352 if(skip >= pkt_len)
1353 return -1;
1354 if(flags & 0x01) //finally the long desired pes_extension2
1355 {
1356 unsigned char l = p[skip]; //ext2 flag+len
1357 skip++;
1358 if((l == 0x81) && (skip < pkt_len))
1359 {
1360 int ssid = p[skip];
1361 mp_msg(MSGT_IDENTIFY, MSGL_V, "SUBSTREAM_ID=%d (0x%02X)\n", ssid, ssid);
1362 return ssid;
1363 }
1364 }
1365
1366 return -1;
1367 }
1368
1369 static int pes_parse2(unsigned char *buf, uint16_t packet_len, ES_stream_t *es, int32_t type_from_pmt, pmt_t *pmt, int pid)
1370 {
1371 unsigned char *p;
1372 uint32_t header_len;
1373 int64_t pts;
1374 uint32_t stream_id;
1375 uint32_t pkt_len, pes_is_aligned;
1376
1377 //Here we are always at the start of a PES packet
1378 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2(%p, %d): \n", buf, (uint32_t) packet_len);
1379
1380 if(packet_len == 0 || packet_len > 184)
1381 {
1382 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2, BUFFER LEN IS TOO SMALL OR TOO BIG: %d EXIT\n", packet_len);
1383 return 0;
1384 }
1385
1386 p = buf;
1387 pkt_len = packet_len;
1388
1389
1390 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: HEADER %02x %02x %02x %02x\n", p[0], p[1], p[2], p[3]);
1391 if (p[0] || p[1] || (p[2] != 1))
1392 {
1393 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: error HEADER %02x %02x %02x (should be 0x000001) \n", p[0], p[1], p[2]);
1394 return 0 ;
1395 }
1396
1397 packet_len -= 6;
1398 if(packet_len==0)
1399 {
1400 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: packet too short: %d, exit\n", packet_len);
1401 return 0;
1402 }
1403
1404 es->payload_size = (p[4] << 8 | p[5]);
1405 pes_is_aligned = (p[6] & 4);
1406
1407 stream_id = p[3];
1408
1409
1410 if (p[7] & 0x80)
1411 { /* pts available */
1412 pts = (int64_t)(p[9] & 0x0E) << 29 ;
1413 pts |= p[10] << 22 ;
1414 pts |= (p[11] & 0xFE) << 14 ;
1415 pts |= p[12] << 7 ;
1416 pts |= (p[13] & 0xFE) >> 1 ;
1417
1418 es->pts = pts / 90000.0;
1419 }
1420 else
1421 es->pts = 0.0;
1422
1423
1424 header_len = p[8];
1425
1426
1427 if (header_len + 9 > pkt_len) //9 are the bytes read up to the header_length field
1428 {
1429 mp_msg(MSGT_DEMUX, MSGL_DBG2, "demux_ts: illegal value for PES_header_data_length (0x%02x)\n", header_len);
1430 return 0;
1431 }
1432
1433 if(stream_id==0xfd)
1434 {
1435 int ssid = parse_pes_extension_fields(p, pkt_len);
1436 if((audio_substream_id!=-1) && (ssid != audio_substream_id))
1437 return 0;
1438 if(ssid == 0x72 && type_from_pmt != AUDIO_DTS && type_from_pmt != SPU_PGS)
1439 es->type = type_from_pmt = AUDIO_TRUEHD;
1440 }
1441
1442 p += header_len + 9;
1443 packet_len -= header_len + 3;
1444
1445 if(es->payload_size)
1446 es->payload_size -= header_len + 3;
1447
1448
1449 es->is_synced = 1; //only for SL streams we have to make sure it's really true, see below
1450 if (stream_id == 0xbd)
1451 {
1452 mp_msg(MSGT_DEMUX, MSGL_DBG3, "pes_parse2: audio buf = %02X %02X %02X %02X %02X %02X %02X %02X, 80: %d\n",
1453 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[0] & 0x80);
1454
1455
1456 /*
1457 * we check the descriptor tag first because some stations
1458 * do not include any of the A52 header info in their audio tracks
1459 * these "raw" streams may begin with a byte that looks like a stream type.
1460 */
1461
1462
1463 if(type_from_pmt == SPU_PGS)
1464 {
1465 es->start = p;
1466 es->size = packet_len;
1467 es->type = SPU_PGS;
1468 es->payload_size -= packet_len;
1469 return 1;
1470 }
1471 if(
1472 (type_from_pmt == AUDIO_A52) || /* A52 - raw */
1473 (packet_len >= 2 && p[0] == 0x0B && p[1] == 0x77) /* A52 - syncword */
1474 )
1475 {
1476 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 RAW OR SYNCWORD\n");
1477 es->start = p;
1478 es->size = packet_len;
1479 es->type = AUDIO_A52;
1480 es->payload_size -= packet_len;
1481
1482 return 1;
1483 }
1484 /* SPU SUBS */
1485 else if(type_from_pmt == SPU_DVB ||
1486 (packet_len >= 1 && (p[0] == 0x20) && pes_is_aligned)) // && p[1] == 0x00))
1487 {
1488 es->start = p;
1489 es->size = packet_len;
1490 es->type = SPU_DVB;
1491 es->payload_size -= packet_len;
1492
1493 return 1;
1494 }
1495 else if (pes_is_aligned && packet_len >= 1 && ((p[0] & 0xE0) == 0x20)) //SPU_DVD
1496 {
1497 //DVD SUBS
1498 es->start = p+1;
1499 es->size = packet_len-1;
1500 es->type = SPU_DVD;
1501 es->payload_size -= packet_len;
1502
1503 return 1;
1504 }
1505 else if (pes_is_aligned && packet_len >= 4 && (p[0] & 0xF8) == 0x80)
1506 {
1507 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 WITH HEADER\n");
1508 es->start = p+4;
1509 es->size = packet_len - 4;
1510 es->type = AUDIO_A52;
1511 es->payload_size -= packet_len;
1512
1513 return 1;
1514 }
1515 else if (pes_is_aligned && packet_len >= 1 && ((p[0]&0xf0) == 0xa0))
1516 {
1517 int pcm_offset;
1518
1519 for (pcm_offset=0; ++pcm_offset < packet_len-1 ; )
1520 {
1521 if (p[pcm_offset] == 0x01 && p[pcm_offset+1] == 0x80)
1522 { /* START */
1523 pcm_offset += 2;
1524 break;
1525 }
1526 }
1527
1528 es->start = p + pcm_offset;
1529 es->size = packet_len - pcm_offset;
1530 es->type = AUDIO_LPCM_BE;
1531 es->payload_size -= packet_len;
1532
1533 return 1;
1534 }
1535 else
1536 {
1537 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PES_PRIVATE1\n");
1538 es->start = p;
1539 es->size = packet_len;
1540 es->type = (type_from_pmt == UNKNOWN ? PES_PRIVATE1 : type_from_pmt);
1541 es->payload_size -= packet_len;
1542
1543 return 1;
1544 }
1545 }
1546 else if(((stream_id >= 0xe0) && (stream_id <= 0xef)) || (stream_id == 0xfd && type_from_pmt != UNKNOWN))
1547 {
1548 es->start = p;
1549 es->size = packet_len;
1550 if(type_from_pmt != UNKNOWN)
1551 es->type = type_from_pmt;
1552 else
1553 es->type = VIDEO_MPEG2;
1554 if(es->payload_size)
1555 es->payload_size -= packet_len;
1556
1557 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: M2V size %d\n", es->size);
1558 return 1;
1559 }
1560 else if ((stream_id == 0xfa))
1561 {
1562 int l;
1563
1564 es->is_synced = 0;
1565 if(type_from_pmt != UNKNOWN) //MP4 A/V or SL
1566 {
1567 es->start = p;
1568 es->size = packet_len;
1569 es->type = type_from_pmt;
1570
1571 if(type_from_pmt == SL_PES_STREAM)
1572 {
1573 //if(pes_is_aligned)
1574 //{
1575 l = mp4_parse_sl_packet(pmt, p, packet_len, pid, es);
1576 mp_msg(MSGT_DEMUX, MSGL_DBG2, "L=%d, TYPE=%x\n", l, type_from_pmt);
1577 if(l < 0)
1578 {
1579 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: couldn't parse SL header, passing along full PES payload\n");
1580 l = 0;
1581 }
1582 //}
1583
1584 es->start += l;
1585 es->size -= l;
1586 }
1587
1588 if(es->payload_size)
1589 es->payload_size -= packet_len;
1590 return 1;
1591 }
1592 }
1593 else if ((stream_id & 0xe0) == 0xc0)
1594 {
1595 es->start = p;
1596 es->size = packet_len;
1597
1598 if(type_from_pmt != UNKNOWN)
1599 es->type = type_from_pmt;
1600 else
1601 es->type = AUDIO_MP2;
1602
1603 es->payload_size -= packet_len;
1604
1605 return 1;
1606 }
1607 else if (type_from_pmt != -1) //as a last resort here we trust the PMT, if present
1608 {
1609 es->start = p;
1610 es->size = packet_len;
1611 es->type = type_from_pmt;
1612 es->payload_size -= packet_len;
1613
1614 return 1;
1615 }
1616 else
1617 {
1618 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: unknown packet, id: %x\n", stream_id);
1619 }
1620
1621 es->is_synced = 0;
1622 return 0;
1623 }
1624
1625
1626
1627
1628 static int ts_sync(stream_t *stream)
1629 {
1630 mp_msg(MSGT_DEMUX, MSGL_DBG3, "TS_SYNC \n");
1631
1632 while (!stream->eof)
1633 if (stream_read_char(stream) == 0x47)
1634 return 1;
1635
1636 return 0;
1637 }
1638
1639
1640 static void ts_dump_streams(ts_priv_t *priv)
1641 {
1642 int i;
1643
1644 for(i = 0; i < 3; i++)
1645 {
1646 if((priv->fifo[i].pack != NULL) && (priv->fifo[i].offset != 0))
1647 {
1648 resize_demux_packet(priv->fifo[i].pack, priv->fifo[i].offset);
1649 ds_add_packet(priv->fifo[i].ds, priv->fifo[i].pack);
1650 priv->fifo[i].offset = 0;
1651 priv->fifo[i].pack = NULL;
1652 }
1653 }
1654 }
1655
1656
1657 static inline int32_t prog_idx_in_pat(ts_priv_t *priv, uint16_t progid)
1658 {
1659 int x;
1660
1661 if(priv->pat.progs == NULL)
1662 return -1;
1663
1664 for(x = 0; x < priv->pat.progs_cnt; x++)
1665 {
1666 if(priv->pat.progs[x].id == progid)
1667 return x;
1668 }
1669
1670 return -1;
1671 }
1672
1673
1674 static inline int32_t prog_id_in_pat(ts_priv_t *priv, uint16_t pid)
1675 {
1676 int x;
1677
1678 if(priv->pat.progs == NULL)
1679 return -1;
1680
1681 for(x = 0; x < priv->pat.progs_cnt; x++)
1682 {
1683 if(priv->pat.progs[x].pmt_pid == pid)
1684 return priv->pat.progs[x].id;
1685 }
1686
1687 return -1;
1688 }
1689
1690 static int collect_section(ts_section_t *section, int is_start, unsigned char *buff, int size)
1691 {
1692 uint8_t *ptr;
1693 uint16_t tlen;
1694 int skip, tid;
1695
1696 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, start: %d, size: %d, collected: %d\n", is_start, size, section->buffer_len);
1697 if(! is_start && !section->buffer_len)
1698 return 0;
1699
1700 if(is_start)
1701 {
1702 if(! section->buffer)
1703 {
1704 section->buffer = malloc(4096 + 256);
1705 if(section->buffer == NULL)
1706 return 0;
1707 }
1708 section->buffer_len = 0;
1709 }
1710
1711 if(size + section->buffer_len > 4096+256)
1712 {
1713 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, excessive len: %d + %d\n", section->buffer_len, size);
1714 return 0;
1715 }
1716
1717 memcpy(&(section->buffer[section->buffer_len]), buff, size);
1718 section->buffer_len += size;
1719
1720 if(section->buffer_len < 3)
1721 return 0;
1722
1723 skip = section->buffer[0];
1724 if(skip + 4 > section->buffer_len)
1725 return 0;
1726
1727 ptr = &(section->buffer[skip + 1]);
1728 tid = ptr[0];
1729 tlen = ((ptr[1] & 0x0f) << 8) | ptr[2];
1730 mp_msg(MSGT_DEMUX, MSGL_V, "SKIP: %d+1, TID: %d, TLEN: %d, COLLECTED: %d\n", skip, tid, tlen, section->buffer_len);
1731 if(section->buffer_len < (skip+1+3+tlen))
1732 {
1733 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DATA IS NOT ENOUGH, NEXT TIME\n");
1734 return 0;
1735 }
1736
1737 return skip+1;
1738 }
1739
1740 static int parse_pat(ts_priv_t * priv, int is_start, unsigned char *buff, int size)
1741 {
1742 int skip;
1743 unsigned char *ptr;
1744 unsigned char *base;
1745 int entries, i;
1746 uint16_t progid;
1747 struct pat_progs_t *tmp;
1748 ts_section_t *section;
1749
1750 section = &(priv->pat.section);
1751 skip = collect_section(section, is_start, buff, size);
1752 if(! skip)
1753 return 0;
1754
1755 ptr = &(section->buffer[skip]);
1756 //PARSING
1757 priv->pat.table_id = ptr[0];
1758 if(priv->pat.table_id != 0)
1759 return 0;
1760 priv->pat.ssi = (ptr[1] >> 7) & 0x1;
1761 priv->pat.curr_next = ptr[5] & 0x01;
1762 priv->pat.ts_id = (ptr[3] << 8 ) | ptr[4];
1763 priv->pat.version_number = (ptr[5] >> 1) & 0x1F;
1764 priv->pat.section_length = ((ptr[1] & 0x03) << 8 ) | ptr[2];
1765 priv->pat.section_number = ptr[6];
1766 priv->pat.last_section_number = ptr[7];
1767
1768 //check_crc32(0xFFFFFFFFL, ptr, priv->pat.buffer_len - 4, &ptr[priv->pat.buffer_len - 4]);
1769 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PAT: section_len: %d, section %d/%d\n", priv->pat.section_length, priv->pat.section_number, priv->pat.last_section_number);
1770
1771 entries = (int) (priv->pat.section_length - 9) / 4; //entries per section
1772
1773 for(i=0; i < entries; i++)
1774 {
1775 int32_t idx;
1776 base = &ptr[8 + i*4];
1777 progid = (base[0] << 8) | base[1];
1778
1779 if((idx = prog_idx_in_pat(priv, progid)) == -1)
1780 {
1781 int sz = sizeof(struct pat_progs_t) * (priv->pat.progs_cnt+1);
1782 tmp = realloc_struct(priv->pat.progs, priv->pat.progs_cnt+1, sizeof(struct pat_progs_t));
1783 if(tmp == NULL)
1784 {
1785 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PAT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
1786 break;
1787 }
1788 priv->pat.progs = tmp;
1789 idx = priv->pat.progs_cnt;
1790 priv->pat.progs_cnt++;
1791 }
1792
1793 priv->pat.progs[idx].id = progid;
1794 priv->pat.progs[idx].pmt_pid = ((base[2] & 0x1F) << 8) | base[3];
1795 mp_msg(MSGT_DEMUX, MSGL_V, "PROG: %d (%d-th of %d), PMT: %d\n", priv->pat.progs[idx].id, i+1, entries, priv->pat.progs[idx].pmt_pid);
1796 mp_msg(MSGT_IDENTIFY, MSGL_V, "PROGRAM_ID=%d (0x%02X), PMT_PID: %d(0x%02X)\n",
1797 progid, progid, priv->pat.progs[idx].pmt_pid, priv->pat.progs[idx].pmt_pid);
1798 }
1799
1800 return 1;
1801 }
1802
1803
1804 static inline int32_t es_pid_in_pmt(pmt_t * pmt, uint16_t pid)
1805 {
1806 uint16_t i;
1807
1808 if(pmt == NULL)
1809 return -1;
1810
1811 if(pmt->es == NULL)
1812 return -1;
1813
1814 for(i = 0; i < pmt->es_cnt; i++)
1815 {
1816 if(pmt->es[i].pid == pid)
1817 return (int32_t) i;
1818 }
1819
1820 return -1;
1821 }
1822
1823
1824 static uint16_t get_mp4_desc_len(uint8_t *buf, int *len)
1825 {
1826 //uint16_t i = 0, size = 0;
1827 int i = 0, j, size = 0;
1828
1829 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PARSE_MP4_DESC_LEN(%d), bytes: ", *len);
1830 j = FFMIN(*len, 4);
1831 while(i < j)
1832 {
1833 mp_msg(MSGT_DEMUX, MSGL_DBG2, " %x ", buf[i]);
1834 size |= (buf[i] & 0x7f);
1835 if(!(buf[i] & 0x80))
1836 break;
1837 size <<= 7;
1838 i++;
1839 }
1840 mp_msg(MSGT_DEMUX, MSGL_DBG2, ", SIZE=%d\n", size);
1841
1842 *len = i+1;
1843 return size;
1844 }
1845
1846
1847 static uint16_t parse_mp4_slconfig_descriptor(uint8_t *buf, int len, void *elem)
1848 {
1849 int i = 0;
1850 mp4_es_descr_t *es;
1851 mp4_sl_config_t *sl;
1852
1853 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_SLCONFIG_DESCRIPTOR(%d)\n", len);
1854 es = (mp4_es_descr_t *) elem;
1855 if(!es)
1856 {
1857 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1858 return len;
1859 }
1860 sl = &(es->sl);
1861
1862 sl->ts_len = sl->ocr_len = sl->au_len = sl->instant_bitrate_len = sl->degr_len = sl->au_seqnum_len = sl->packet_seqnum_len = 0;
1863 sl->ocr = sl->dts = sl->cts = 0;
1864
1865 if(buf[0] == 0)
1866 {
1867 i++;
1868 sl->flags = buf[i];
1869 i++;
1870 sl->ts_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1871 i += 4;
1872 sl->ocr_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1873 i += 4;
1874 sl->ts_len = buf[i];
1875 i++;
1876 sl->ocr_len = buf[i];
1877 i++;
1878 sl->au_len = buf[i];
1879 i++;
1880 sl->instant_bitrate_len = buf[i];
1881 i++;
1882 sl->degr_len = (buf[i] >> 4) & 0x0f;
1883 sl->au_seqnum_len = ((buf[i] & 0x0f) << 1) | ((buf[i+1] >> 7) & 0x01);
1884 i++;
1885 sl->packet_seqnum_len = ((buf[i] >> 2) & 0x1f);
1886 i++;
1887
1888 }
1889 else if(buf[0] == 1)
1890 {
1891 sl->flags = 0;
1892 sl->ts_resolution = 1000;
1893 sl->ts_len = 32;
1894 i++;
1895 }
1896 else if(buf[0] == 2)
1897 {
1898 sl->flags = 4;
1899 i++;
1900 }
1901 else
1902 {
1903 sl->flags = 0;
1904 i++;
1905 }
1906
1907 sl->au_start = (sl->flags >> 7) & 0x1;
1908 sl->au_end = (sl->flags >> 6) & 0x1;
1909 sl->random_accesspoint = (sl->flags >> 5) & 0x1;
1910 sl->random_accesspoint_only = (sl->flags >> 4) & 0x1;
1911 sl->padding = (sl->flags >> 3) & 0x1;
1912 sl->use_ts = (sl->flags >> 2) & 0x1;
1913 sl->idle = (sl->flags >> 1) & 0x1;
1914 sl->duration = sl->flags & 0x1;
1915
1916 if(sl->duration)
1917 {
1918 sl->timescale = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1919 i += 4;
1920 sl->au_duration = (buf[i] << 8) | buf[i+1];
1921 i += 2;
1922 sl->cts_duration = (buf[i] << 8) | buf[i+1];
1923 i += 2;
1924 }
1925 else //no support for fixed durations atm
1926 sl->timescale = sl->au_duration = sl->cts_duration = 0;
1927
1928 mp_msg(MSGT_DEMUX, MSGL_V, "MP4SLCONFIG(len=0x%x), predef: %d, flags: %x, use_ts: %d, tslen: %d, timescale: %d, dts: %"PRIu64", cts: %"PRIu64"\n",
1929 len, buf[0], sl->flags, sl->use_ts, sl->ts_len, sl->timescale, (uint64_t) sl->dts, (uint64_t) sl->cts);
1930
1931 return len;
1932 }
1933
1934 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem);
1935
1936 static uint16_t parse_mp4_decoder_config_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
1937 {
1938 int i = 0, j;
1939 mp4_es_descr_t *es;
1940 mp4_decoder_config_t *dec;
1941
1942 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_CONFIG_DESCRIPTOR(%d)\n", len);
1943 es = (mp4_es_descr_t *) elem;
1944 if(!es)
1945 {
1946 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1947 return len;
1948 }
1949 dec = (mp4_decoder_config_t*) &(es->decoder);
1950
1951 dec->object_type = buf[i];
1952 dec->stream_type = (buf[i+1]>>2) & 0x3f;
1953
1954 if(dec->object_type == 1 && dec->stream_type == 1)
1955 {
1956 dec->object_type = MP4_OD;
1957 dec->stream_type = MP4_OD;
1958 }
1959 else if(dec->stream_type == 4)
1960 {
1961 if(dec->object_type == 0x6a)
1962 dec->object_type = VIDEO_MPEG1;
1963 if(dec->object_type >= 0x60 && dec->object_type <= 0x65)
1964 dec->object_type = VIDEO_MPEG2;
1965 else if(dec->object_type == 0x20)
1966 dec->object_type = VIDEO_MPEG4;
1967 else if(dec->object_type == 0x21)
1968 dec->object_type = VIDEO_AVC;
1969 /*else if(dec->object_type == 0x22)
1970 fprintf(stderr, "TYPE 0x22\n");*/
1971 else dec->object_type = UNKNOWN;
1972 }
1973 else if(dec->stream_type == 5)
1974 {
1975 if(dec->object_type == 0x40)
1976 dec->object_type = AUDIO_AAC;
1977 else if(dec->object_type == 0x6b)
1978 dec->object_type = AUDIO_MP2;
1979 else if(dec->object_type >= 0x66 && dec->object_type <= 0x69)
1980 dec->object_type = AUDIO_MP2;
1981 else
1982 dec->object_type = UNKNOWN;
1983 }
1984 else
1985 dec->object_type = dec->stream_type = UNKNOWN;
1986
1987 if(dec->object_type != UNKNOWN)
1988 {
1989 //update the type of the current stream
1990 for(j = 0; j < pmt->es_cnt; j++)
1991 {
1992 if(pmt->es[j].mp4_es_id == es->id)
1993 {
1994 pmt->es[j].type = SL_PES_STREAM;
1995 }
1996 }
1997 }
1998
1999 if(len > 13)
2000 parse_mp4_descriptors(pmt, &buf[13], len-13, dec);
2001
2002 mp_msg(MSGT_DEMUX, MSGL_V, "MP4DECODER(0x%x), object_type: 0x%x, stream_type: 0x%x\n", len, dec->object_type, dec->stream_type);
2003
2004 return len;
2005 }
2006
2007 static uint16_t parse_mp4_decoder_specific_descriptor(uint8_t *buf, int len, void *elem)
2008 {
2009 int i;
2010 mp4_decoder_config_t *dec;
2011
2012 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_SPECIFIC_DESCRIPTOR(%d)\n", len);
2013 dec = (mp4_decoder_config_t *) elem;
2014 if(!dec)
2015 {
2016 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
2017 return len;
2018 }
2019
2020 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4 SPECIFIC INFO BYTES: \n");
2021 for(i=0; i<len; i++)
2022 mp_msg(MSGT_DEMUX, MSGL_DBG2, "%02x ", buf[i]);
2023 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\n");
2024
2025 if(len > MAX_EXTRADATA_SIZE)
2026 {
2027 mp_msg(MSGT_DEMUX, MSGL_ERR, "DEMUX_TS, EXTRADATA SUSPICIOUSLY BIG: %d, REFUSED\r\n", len);
2028 return len;
2029 }
2030 memcpy(dec->buf, buf, len);
2031 dec->buf_size = len;
2032
2033 return len;
2034 }
2035
2036 static uint16_t parse_mp4_es_descriptor(pmt_t *pmt, uint8_t *buf, int len)
2037 {
2038 int i = 0, j = 0, k, found;
2039 uint8_t flag;
2040 mp4_es_descr_t es, *target_es = NULL, *tmp;
2041
2042 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4ES: len=%d\n", len);
2043 memset(&es, 0, sizeof(mp4_es_descr_t));
2044 while(i < len)
2045 {
2046 es.id = (buf[i] << 8) | buf[i+1];
2047 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_ID: %d\n", es.id);
2048 i += 2;
2049 flag = buf[i];
2050 i++;
2051 if(flag & 0x80)
2052 i += 2;
2053 if(flag & 0x40)
2054 i += buf[i]+1;
2055 if(flag & 0x20) //OCR, maybe we need it
2056 i += 2;
2057
2058 j = parse_mp4_descriptors(pmt, &buf[i], len-i, &es);
2059 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4ES, types after parse_mp4_descriptors: 0x%x, 0x%x\n", es.decoder.object_type, es.decoder.stream_type);
2060 if(es.decoder.object_type != UNKNOWN && es.decoder.stream_type != UNKNOWN)
2061 {
2062 found = 0;
2063 //search this ES_ID if we already have it
2064 for(k=0; k < pmt->mp4es_cnt; k++)
2065 {
2066 if(pmt->mp4es[k].id == es.id)
2067 {
2068 target_es = &(pmt->mp4es[k]);
2069 found = 1;
2070 }
2071 }
2072
2073 if(! found)
2074 {
2075 tmp = realloc_struct(pmt->mp4es, pmt->mp4es_cnt+1, sizeof(mp4_es_descr_t));
2076 if(tmp == NULL)
2077 {
2078 fprintf(stderr, "CAN'T REALLOC MP4_ES_DESCR\n");
2079 continue;
2080 }
2081 pmt->mp4es = tmp;
2082 target_es = &(pmt->mp4es[pmt->mp4es_cnt]);
2083 pmt->mp4es_cnt++;
2084 }
2085 memcpy(target_es, &es, sizeof(mp4_es_descr_t));
2086 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_CNT: %d, ID=%d\n", pmt->mp4es_cnt, target_es->id);
2087 }
2088
2089 i += j;
2090 }
2091
2092 return len;
2093 }
2094
2095 static void parse_mp4_object_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2096 {
2097 int i, j = 0, id;
2098
2099 i=0;
2100 id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
2101 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_OBJECT_DESCRIPTOR: len=%d, OD_ID=%d\n", len, id);
2102 if(buf[1] & 0x20)
2103 {
2104 i += buf[2] + 1; //url
2105 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2106 }
2107 else
2108 {
2109 i = 2;
2110
2111 while(i < len)
2112 {
2113 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2114 mp_msg(MSGT_DEMUX, MSGL_V, "OBJD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2115 i += j;
2116 }
2117 }
2118 }
2119
2120
2121 static void parse_mp4_iod(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2122 {
2123 int i, j = 0;
2124 mp4_od_t *iod = &(pmt->iod);
2125
2126 iod->id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
2127 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_IOD: len=%d, IOD_ID=%d\n", len, iod->id);
2128 i = 2;
2129 if(buf[1] & 0x20)
2130 {
2131 i += buf[2] + 1; //url
2132 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2133 }
2134 else
2135 {
2136 i = 7;
2137 while(i < len)
2138 {
2139 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2140 mp_msg(MSGT_DEMUX, MSGL_V, "IOD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2141 i += j;
2142 }
2143 }
2144 }
2145
2146 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2147 {
2148 int tag, descr_len, i = 0, j = 0;
2149
2150 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DESCRIPTORS, len=%d\n", len);
2151 if(! len)
2152 return len;
2153
2154 while(i < len)
2155 {
2156 tag = buf[i];
2157 j = len - i -1;
2158 descr_len = get_mp4_desc_len(&(buf[i+1]), &j);
2159 mp_msg(MSGT_DEMUX, MSGL_V, "TAG=%d (0x%x), DESCR_len=%d, len=%d, j=%d\n", tag, tag, descr_len, len, j);
2160 if(descr_len > len - j+1)
2161 {
2162 mp_msg(MSGT_DEMUX, MSGL_V, "descriptor is too long, exit\n");
2163 return len;
2164 }
2165 i += j+1;
2166
2167 switch(tag)
2168 {
2169 case 0x1:
2170 parse_mp4_object_descriptor(pmt, &(buf[i]), descr_len, elem);
2171 break;
2172 case 0x2:
2173 parse_mp4_iod(pmt, &(buf[i]), descr_len, elem);
2174 break;
2175 case 0x3:
2176 parse_mp4_es_descriptor(pmt, &(buf[i]), descr_len);
2177 break;
2178 case 0x4:
2179 parse_mp4_decoder_config_descriptor(pmt, &buf[i], descr_len, elem);
2180 break;
2181 case 0x05:
2182 parse_mp4_decoder_specific_descriptor(&buf[i], descr_len, elem);
2183 break;
2184 case 0x6:
2185 parse_mp4_slconfig_descriptor(&buf[i], descr_len, elem);
2186 break;
2187 default:
2188 mp_msg(MSGT_DEMUX, MSGL_V, "Unsupported mp4 descriptor 0x%x\n", tag);
2189 }
2190 i += descr_len;
2191 }
2192
2193 return len;
2194 }
2195
2196 static ES_stream_t *new_pid(ts_priv_t *priv, int pid)
2197 {
2198 ES_stream_t *tss;
2199
2200 tss = calloc(sizeof(*tss), 1);
2201 if(! tss)
2202 return NULL;
2203 tss->pid = pid;
2204 tss->last_cc = -1;
2205 tss->type = UNKNOWN;
2206 tss->subtype = UNKNOWN;
2207 tss->is_synced = 0;
2208 tss->extradata = NULL;
2209 tss->extradata_alloc = tss->extradata_len = 0;
2210 priv->ts.pids[pid] = tss;
2211
2212 return tss;
2213 }
2214
2215
2216 static int parse_program_descriptors(pmt_t *pmt, uint8_t *buf, uint16_t len)
2217 {
2218 uint16_t i = 0, k, olen = len;
2219
2220 while(len > 0)
2221 {
2222 mp_msg(MSGT_DEMUX, MSGL_V, "PROG DESCR, TAG=%x, LEN=%d(%x)\n", buf[i], buf[i+1], buf[i+1]);
2223 if(buf[i+1] > len-2)
2224 {
2225 mp_msg(MSGT_DEMUX, MSGL_V, "ERROR, descriptor len is too long, skipping\n");
2226 return olen;
2227 }
2228
2229 if(buf[i] == 0x1d)
2230 {
2231 if(buf[i+3] == 2) //buggy versions of vlc muxer make this non-standard mess (missing iod_scope)
2232 k = 3;
2233 else
2234 k = 4; //this is standard compliant
2235 parse_mp4_descriptors(pmt, &buf[i+k], (int) buf[i+1]-(k-2), NULL);
2236 }
2237
2238 len -= 2 + buf[i+1];
2239 }
2240
2241 return olen;
2242 }
2243
2244 static int parse_descriptors(struct pmt_es_t *es, uint8_t *ptr)
2245 {
2246 int j, descr_len, len;
2247
2248 j = 0;
2249 len = es->descr_length;
2250 while(len > 2)
2251 {
2252 descr_len = ptr[j+1];
2253 mp_msg(MSGT_DEMUX, MSGL_V, "...descr id: 0x%x, len=%d\n", ptr[j], descr_len);
2254 if(descr_len > len)
2255 {
2256 mp_msg(MSGT_DEMUX, MSGL_ERR, "INVALID DESCR LEN for tag %02x: %d vs %d max, EXIT LOOP\n", ptr[j], descr_len, len);
2257 return -1;
2258 }
2259
2260
2261 if(ptr[j] == 0x6a || ptr[j] == 0x7a) //A52 Descriptor
2262 {
2263 if(es->type == 0x6)
2264 {
2265 es->type = AUDIO_A52;
2266 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB A52 Descriptor\n");
2267 }
2268 }
2269 else if(ptr[j] == 0x7b) //DVB DTS Descriptor
2270 {
2271 if(es->type == 0x6)
2272 {
2273 es->type = AUDIO_DTS;
2274 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB DTS Descriptor\n");
2275 }
2276 }
2277 else if(ptr[j] == 0x56) // Teletext
2278 {
2279 if(descr_len >= 5) {
2280 memcpy(es->lang, ptr+2, 3);
2281 es->lang[3] = 0;
2282 }
2283 es->type = SPU_TELETEXT;
2284 }
2285 else if(ptr[j] == 0x59) //Subtitling Descriptor
2286 {
2287 uint8_t subtype;
2288
2289 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Subtitling Descriptor\n");
2290 if(descr_len < 8)
2291 {
2292 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Descriptor length too short for DVB Subtitle Descriptor: %d, SKIPPING\n", descr_len);
2293 }
2294 else
2295 {
2296 memcpy(es->lang, &ptr[j+2], 3);
2297 es->lang[3] = 0;
2298 subtype = ptr[j+5];
2299 if(
2300 (subtype >= 0x10 && subtype <= 0x13) ||
2301 (subtype >= 0x20 && subtype <= 0x23)
2302 )
2303 {
2304 es->type = SPU_DVB;
2305 //page parameters: compo page 2 bytes, ancillary page 2 bytes
2306 }
2307 else
2308 es->type = UNKNOWN;
2309 }
2310 }
2311 else if(ptr[j] == 0x50) //Component Descriptor
2312 {
2313 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Component Descriptor\n");
2314 memcpy(es->lang, &ptr[j+5], 3);
2315 es->lang[3] = 0;
2316 }
2317 else if(ptr[j] == 0xa) //Language Descriptor
2318 {
2319 memcpy(es->lang, &ptr[j+2], 3);
2320 es->lang[3] = 0;
2321 mp_msg(MSGT_DEMUX, MSGL_V, "Language Descriptor: %s\n", es->lang);
2322 }
2323 else if(ptr[j] == 0x5) //Registration Descriptor (looks like e fourCC :) )
2324 {
2325 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor\n");
2326 if(descr_len < 4)
2327 {
2328 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor length too short: %d, SKIPPING\n", descr_len);
2329 }
2330 else
2331 {
2332 char *d;
2333 memcpy(es->format_descriptor, &ptr[j+2], 4);
2334 es->format_descriptor[4] = 0;
2335
2336 d = &ptr[j+2];
2337 if(d[0] == 'A' && d[1] == 'C' && d[2] == '-' && d[3] == '3')
2338 {
2339 es->type = AUDIO_A52;
2340 }
2341 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '1')
2342 {
2343 es->type = AUDIO_DTS;
2344 }
2345 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '2')
2346 {
2347 es->type = AUDIO_DTS;
2348 }
2349 else if(d[0] == 'V' && d[1] == 'C' && d[2] == '-' && d[3] == '1')
2350 {
2351 es->type = VIDEO_VC1;
2352 }
2353 else if(d[0] == 'd' && d[1] == 'r' && d[2] == 'a' && d[3] == 'c')
2354 {
2355 es->type = VIDEO_DIRAC;
2356 }
2357 else
2358 es->type = UNKNOWN;
2359 mp_msg(MSGT_DEMUX, MSGL_DBG2, "FORMAT %s\n", es->format_descriptor);
2360 }
2361 }
2362 else if(ptr[j] == 0x1e || ptr[j] == 0x1f)
2363 {
2364 // 0x1f is FMC, but currently it is easiest to handle them the same way
2365 es->mp4_es_id = (ptr[j+2] << 8) | ptr[j+3];
2366 mp_msg(MSGT_DEMUX, MSGL_V, "SL Descriptor: ES_ID: %d(%x), pid: %d\n", es->mp4_es_id, es->mp4_es_id, es->pid);
2367 }
2368 else
2369 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Unknown descriptor 0x%x, SKIPPING\n", ptr[j]);
2370
2371 len -= 2 + descr_len;
2372 j += 2 + descr_len;
2373 }
2374
2375 return 1;
2376 }
2377
2378 static int parse_sl_section(pmt_t *pmt, ts_section_t *section, int is_start, unsigned char *buff, int size)
2379 {
2380 int tid, len, skip;
2381 uint8_t *ptr;
2382 skip = collect_section(section, is_start, buff, size);
2383 if(! skip)
2384 return 0;
2385
2386 ptr = &(section->buffer[skip]);
2387 tid = ptr[0];
2388 len = ((ptr[1] & 0x0f) << 8) | ptr[2];
2389 mp_msg(MSGT_DEMUX, MSGL_V, "TABLEID: %d (av. %d), skip=%d, LEN: %d\n", tid, section->buffer_len, skip, len);
2390 if(len > 4093 || section->buffer_len < len || tid != 5)
2391 {
2392 mp_msg(MSGT_DEMUX, MSGL_V, "SECTION TOO LARGE or wrong section type, EXIT\n");
2393 return 0;
2394 }
2395
2396 if(! (ptr[5] & 1))
2397 return 0;
2398
2399 //8 is the current position, len - 9 is the amount of data available
2400 parse_mp4_descriptors(pmt, &ptr[8], len - 9, NULL);
2401
2402 return 1;
2403 }
2404
2405 static int parse_pmt(ts_priv_t * priv, uint16_t progid, uint16_t pid, int is_start, unsigned char *buff, int size)
2406 {
2407 unsigned char *base, *es_base;
2408 pmt_t *pmt;
2409 int32_t idx, es_count, section_bytes;
2410 uint8_t m=0;
2411 int skip;
2412 pmt_t *tmp;
2413 struct pmt_es_t *tmp_es;
2414 ts_section_t *section;
2415 ES_stream_t *tss;
2416 int i;
2417
2418 idx = progid_idx_in_pmt(priv, progid);
2419
2420 if(idx == -1)
2421 {
2422 int sz = (priv->pmt_cnt + 1) * sizeof(pmt_t);
2423 tmp = realloc_struct(priv->pmt, priv->pmt_cnt + 1, sizeof(pmt_t));
2424 if(tmp == NULL)
2425 {
2426 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
2427 return 0;
2428 }
2429 priv->pmt = tmp;
2430 idx = priv->pmt_cnt;
2431 memset(&(priv->pmt[idx]), 0, sizeof(pmt_t));
2432 priv->pmt_cnt++;
2433 priv->pmt[idx].progid = progid;
2434 }
2435
2436 pmt = &(priv->pmt[idx]);
2437
2438 section = &(pmt->section);
2439 skip = collect_section(section, is_start, buff, size);
2440 if(! skip)
2441 return 0;
2442
2443 base = &(section->buffer[skip]);
2444
2445 mp_msg(MSGT_DEMUX, MSGL_V, "FILL_PMT(prog=%d), PMT_len: %d, IS_START: %d, TS_PID: %d, SIZE=%d, M=%d, ES_CNT=%d, IDX=%d, PMT_PTR=%p\n",
2446 progid, pmt->section.buffer_len, is_start, pid, size, m, pmt->es_cnt, idx, pmt);
2447
2448 pmt->table_id = base[0];
2449 if(pmt->table_id != 2)
2450 return -1;
2451 pmt->ssi = base[1] & 0x80;
2452 pmt->section_length = (((base[1] & 0xf) << 8 ) | base[2]);
2453 pmt->version_number = (base[5] >> 1) & 0x1f;
2454 pmt->curr_next = (base[5] & 1);
2455 pmt->section_number = base[6];
2456 pmt->last_section_number = base[7];
2457 pmt->PCR_PID = ((base[8] & 0x1f) << 8 ) | base[9];
2458 pmt->prog_descr_length = ((base[10] & 0xf) << 8 ) | base[11];
2459 if(pmt->prog_descr_length > pmt->section_length - 9)
2460 {
2461 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, INVALID PROG_DESCR LENGTH (%d vs %d)\n", pmt->prog_descr_length, pmt->section_length - 9);
2462 return -1;
2463 }
2464
2465 if(pmt->prog_descr_length)
2466 parse_program_descriptors(pmt, &base[12], pmt->prog_descr_length);
2467
2468 es_base = &base[12 + pmt->prog_descr_length]; //the beginning of th ES loop
2469
2470 section_bytes= pmt->section_length - 13 - pmt->prog_descr_length;
2471 es_count = 0;
2472
2473 while(section_bytes >= 5)
2474 {
2475 int es_pid, es_type;
2476
2477 es_type = es_base[0];
2478 es_pid = ((es_base[1] & 0x1f) << 8) | es_base[2];
2479
2480 idx = es_pid_in_pmt(pmt, es_pid);
2481 if(idx == -1)
2482 {
2483 int sz = sizeof(struct pmt_es_t) * (pmt->es_cnt + 1);
2484 tmp_es = realloc_struct(pmt->es, pmt->es_cnt + 1, sizeof(struct pmt_es_t));
2485 if(tmp_es == NULL)
2486 {
2487 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT, COULDN'T ALLOCATE %d bytes for PMT_ES\n", sz);
2488 continue;
2489 }
2490 pmt->es = tmp_es;
2491 idx = pmt->es_cnt;
2492 memset(&(pmt->es[idx]), 0, sizeof(struct pmt_es_t));
2493 pmt->es_cnt++;
2494 }
2495
2496 pmt->es[idx].descr_length = ((es_base[3] & 0xf) << 8) | es_base[4];
2497
2498
2499 if(pmt->es[idx].descr_length > section_bytes - 5)
2500 {
2501 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, ES_DESCR_LENGTH TOO LARGE %d > %d, EXIT\n",
2502 pmt->es[idx].descr_length, section_bytes - 5);
2503 return -1;
2504 }
2505
2506
2507 pmt->es[idx].pid = es_pid;
2508 if(es_type != 0x6)
2509 pmt->es[idx].type = UNKNOWN;
2510 else
2511 pmt->es[idx].type = es_type;
2512
2513 parse_descriptors(&pmt->es[idx], &es_base[5]);
2514
2515 switch(es_type)
2516 {
2517 case 1:
2518 pmt->es[idx].type = VIDEO_MPEG1;
2519 break;
2520 case 2:
2521 pmt->es[idx].type = VIDEO_MPEG2;
2522 break;
2523 case 3:
2524 case 4:
2525 pmt->es[idx].type = AUDIO_MP2;
2526 break;
2527 case 6:
2528 if(pmt->es[idx].type == 0x6) //this could have been ovrwritten by parse_descriptors
2529 pmt->es[idx].type = UNKNOWN;
2530 break;
2531 case 0x10:
2532 pmt->es[idx].type = VIDEO_MPEG4;
2533 break;
2534 case 0x0f:
2535 pmt->es[idx].type = AUDIO_AAC;
2536 break;
2537 case 0x11:
2538 pmt->es[idx].type = AUDIO_AAC_LATM;
2539 for (i = 0; i < pmt->mp4es_cnt; i++)
2540 if (pmt->mp4es[i].id == pmt->es[idx].mp4_es_id &&
2541 pmt->mp4es[i].decoder.object_type == AUDIO_AAC)
2542 pmt->es[idx].type = AUDIO_AAC;
2543 break;
2544 case 0x1b:
2545 pmt->es[idx].type = VIDEO_H264;
2546 break;
2547 case 0x12:
2548 pmt->es[idx].type = SL_PES_STREAM;
2549 break;
2550 case 0x13:
2551 pmt->es[idx].type = SL_SECTION;
2552 break;
2553 case 0x81:
2554 pmt->es[idx].type = AUDIO_A52;
2555 break;
2556 case 0x8A:
2557 case 0x82:
2558 case 0x85:
2559 case 0x86:
2560 pmt->es[idx].type = AUDIO_DTS;
2561 break;
2562 case 0x90:
2563 pmt->es[idx].type = SPU_PGS;
2564 break;
2565 case 0xD1:
2566 pmt->es[idx].type = VIDEO_DIRAC;
2567 break;
2568 case 0xEA:
2569 pmt->es[idx].type = VIDEO_VC1;
2570 break;
2571 default:
2572 mp_msg(MSGT_DEMUX, MSGL_DBG2, "UNKNOWN ES TYPE=0x%x\n", es_type);
2573 pmt->es[idx].type = UNKNOWN;
2574 }
2575
2576 tss = priv->ts.pids[es_pid]; //an ES stream
2577 if(tss == NULL)
2578 {
2579 tss = new_pid(priv, es_pid);
2580 if(tss)
2581 tss->type = pmt->es[idx].type;
2582 }
2583
2584 section_bytes -= 5 + pmt->es[idx].descr_length;
2585 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT(%d INDEX %d), STREAM: %d, FOUND pid=0x%x (%d), type=0x%x, ES_DESCR_LENGTH: %d, bytes left: %d\n",
2586 progid, idx, es_count, pmt->es[idx].pid, pmt->es[idx].pid, pmt->es[idx].type, pmt->es[idx].descr_length, section_bytes);
2587
2588
2589 es_base += 5 + pmt->es[idx].descr_length;
2590
2591 es_count++;
2592 }
2593
2594 mp_msg(MSGT_DEMUX, MSGL_V, "----------------------------\n");
2595 return 1;
2596 }
2597
2598 static pmt_t* pmt_of_pid(ts_priv_t *priv, int pid, mp4_decoder_config_t **mp4_dec)
2599 {
2600 int32_t i, j, k;
2601
2602 if(priv->pmt)
2603 {
2604 for(i = 0; i < priv->pmt_cnt; i++)
2605 {
2606 if(priv->pmt[i].es && priv->pmt[i].es_cnt)
2607 {
2608 for(j = 0; j < priv->pmt[i].es_cnt; j++)
2609 {
2610 if(priv->pmt[i].es[j].pid == pid)
2611 {
2612 //search mp4_es_id
2613 if(priv->pmt[i].es[j].mp4_es_id)
2614 {
2615 for(k = 0; k < priv->pmt[i].mp4es_cnt; k++)
2616 {
2617 if(priv->pmt[i].mp4es[k].id == priv->pmt[i].es[j].mp4_es_id)
2618 {
2619 *mp4_dec = &(priv->pmt[i].mp4es[k].decoder);
2620 break;
2621 }
2622 }
2623 }
2624
2625 return &(priv->pmt[i]);
2626 }
2627 }
2628 }
2629 }
2630 }
2631
2632 return NULL;
2633 }
2634
2635
2636 static inline int32_t pid_type_from_pmt(ts_priv_t *priv, int pid)
2637 {
2638 int32_t pmt_idx, pid_idx, i, j;
2639
2640 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2641
2642 if(pmt_idx != -1)
2643 {
2644 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2645 if(pid_idx != -1)
2646 return priv->pmt[pmt_idx].es[pid_idx].type;
2647 }
2648 //else
2649 //{
2650 for(i = 0; i < priv->pmt_cnt; i++)
2651 {
2652 pmt_t *pmt = &(priv->pmt[i]);
2653 for(j = 0; j < pmt->es_cnt; j++)
2654 if(pmt->es[j].pid == pid)
2655 return pmt->es[j].type;
2656 }
2657 //}
2658
2659 return UNKNOWN;
2660 }
2661
2662
2663 static inline uint8_t *pid_lang_from_pmt(ts_priv_t *priv, int pid)
2664 {
2665 int32_t pmt_idx, pid_idx, i, j;
2666
2667 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2668
2669 if(pmt_idx != -1)
2670 {
2671 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2672 if(pid_idx != -1)
2673 return priv->pmt[pmt_idx].es[pid_idx].lang;
2674 }
2675 else
2676 {
2677 for(i = 0; i < priv->pmt_cnt; i++)
2678 {
2679 pmt_t *pmt = &(priv->pmt[i]);
2680 for(j = 0; j < pmt->es_cnt; j++)
2681 if(pmt->es[j].pid == pid)
2682 return pmt->es[j].lang;
2683 }
2684 }
2685
2686 return NULL;
2687 }
2688
2689
2690 static int fill_packet(demuxer_t *demuxer, demux_stream_t *ds, demux_packet_t **dp, int *dp_offset, TS_stream_info *si)
2691 {
2692 int ret = 0;
2693
2694 if(*dp && *dp_offset <= 0)
2695 {
2696 free_demux_packet(*dp);
2697 *dp = NULL;
2698 }
2699 if(*dp)
2700 {
2701 ret = *dp_offset;
2702 resize_demux_packet(*dp, ret); //shrinked to the right size
2703 ds_add_packet(ds, *dp);
2704 mp_msg(MSGT_DEMUX, MSGL_DBG2, "ADDED %d bytes to %s fifo, PTS=%.3f\n", ret, (ds == demuxer->audio ? "audio" : (ds == demuxer->video ? "video" : "sub")), (*dp)->pts);
2705 if(si)
2706 {
2707 float diff = (*dp)->pts - si->last_pts;
2708 float dur;
2709
2710 if(abs(diff) > 1) //1 second, there's a discontinuity
2711 {
2712 si->duration += si->last_pts - si->first_pts;
2713 si->first_pts = si->last_pts = (*dp)->pts;
2714 }
2715 else
2716 {
2717 si->last_pts = (*dp)->pts;
2718 }
2719 si->size += ret;
2720 dur = si->duration + (si->last_pts - si->first_pts);
2721
2722 if(dur > 0 && ds == demuxer->video)
2723 {
2724 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2725 if(dur > 1) //otherwise it may be unreliable
2726 priv->vbitrate = (uint32_t) ((float) si->size / dur);
2727 }
2728 }
2729 }
2730
2731 *dp = NULL;
2732 *dp_offset = 0;
2733
2734 return ret;
2735 }
2736
2737 static int fill_extradata(mp4_decoder_config_t * mp4_dec, ES_stream_t *tss)
2738 {
2739 uint8_t *tmp;
2740
2741 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4_dec: %p, pid: %d\n", mp4_dec, tss->pid);
2742
2743 if(mp4_dec->buf_size > tss->extradata_alloc)
2744 {
2745 tmp = realloc(tss->extradata, mp4_dec->buf_size);
2746 if(!tmp)
2747 return 0;
2748 tss->extradata = tmp;
2749 tss->extradata_alloc = mp4_dec->buf_size;
2750 }
2751 memcpy(tss->extradata, mp4_dec->buf, mp4_dec->buf_size);
2752 tss->extradata_len = mp4_dec->buf_size;
2753 mp_msg(MSGT_DEMUX, MSGL_V, "EXTRADATA: %p, alloc=%d, len=%d\n", tss->extradata, tss->extradata_alloc, tss->extradata_len);
2754
2755 return tss->extradata_len;
2756 }
2757
2758 // 0 = EOF or no stream found
2759 // else = [-] number of bytes written to the packet
2760 static int ts_parse(demuxer_t *demuxer , ES_stream_t *es, unsigned char *packet, int probe)
2761 {
2762 ES_stream_t *tss;
2763 int buf_size, is_start, pid, base;
2764 int len, cc, cc_ok, afc, retv = 0, is_video, is_audio, is_sub;
2765 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2766 stream_t *stream = demuxer->stream;
2767 char *p;
2768 demux_stream_t *ds = NULL;
2769 demux_packet_t **dp = NULL;
2770 int *dp_offset = 0, *buffer_size = 0;
2771 int32_t progid, pid_type, bad, ts_error;
2772 int junk = 0, rap_flag = 0;
2773 pmt_t *pmt;
2774 mp4_decoder_config_t *mp4_dec;
2775 TS_stream_info *si;
2776
2777
2778 memset(es, 0, sizeof(*es));
2779 while(1)
2780 {
2781 bad = ts_error = 0;
2782 ds = NULL;
2783 dp = NULL;
2784 dp_offset = buffer_size = NULL;
2785 rap_flag = 0;
2786 mp4_dec = NULL;
2787 es->is_synced = 0;
2788 es->lang[0] = 0;
2789 si = NULL;
2790
2791 junk = priv->ts.packet_size - TS_PACKET_SIZE;
2792 buf_size = priv->ts.packet_size - junk;
2793
2794 if(stream_eof(stream))
2795 {
2796 if(! probe)
2797 {
2798 ts_dump_streams(priv);
2799 demuxer->filepos = stream_tell(demuxer->stream);
2800 }
2801
2802 return 0;
2803 }
2804
2805
2806 if(! ts_sync(stream))
2807 {
2808 mp_msg(MSGT_DEMUX, MSGL_INFO, "TS_PARSE: COULDN'T SYNC\n");
2809 return 0;
2810 }
2811
2812 len = stream_read(stream, &packet[1], 3);
2813 if (len != 3)
2814 return 0;
2815 buf_size -= 4;
2816
2817 if((packet[1] >> 7) & 0x01) //transport error
2818 ts_error = 1;
2819
2820
2821 is_start = packet[1] & 0x40;
2822 pid = ((packet[1] & 0x1f) << 8) | packet[2];
2823
2824 tss = priv->ts.pids[pid]; //an ES stream
2825 if(tss == NULL)
2826 {
2827 tss = new_pid(priv, pid);
2828 if(tss == NULL)
2829 continue;
2830 }
2831
2832 cc = (packet[3] & 0xf);
2833 cc_ok = (tss->last_cc < 0) || ((((tss->last_cc + 1) & 0x0f) == cc));
2834 tss->last_cc = cc;
2835
2836 bad = ts_error; // || (! cc_ok);
2837 if(bad)
2838 {
2839 if(priv->keep_broken == 0)
2840 {
2841 stream_skip(stream, buf_size-1+junk);
2842 continue;
2843 }
2844
2845 is_start = 0; //queued to the packet data
2846 }
2847
2848 if(is_start)
2849 tss->is_synced = 1;
2850
2851 if((!is_start && !tss->is_synced) || ((pid > 1) && (pid < 16)) || (pid == 8191)) //invalid pid
2852 {
2853 stream_skip(stream, buf_size-1+junk);
2854 continue;
2855 }
2856
2857
2858 afc = (packet[3] >> 4) & 3;
2859 if(! (afc % 2)) //no payload in this TS packet
2860 {
2861 stream_skip(stream, buf_size-1+junk);
2862 continue;
2863 }
2864
2865 if(afc > 1)
2866 {
2867 int c;
2868 c = stream_read_char(stream);
2869 buf_size--;
2870 if(c < 0 || c > 183) //broken from the stream layer or invalid
2871 {
2872 stream_skip(stream, buf_size-1+junk);
2873 continue;
2874 }
2875
2876 //c==0 is allowed!
2877 if(c > 0)
2878 {
2879 uint8_t pcrbuf[188];
2880 int flags = stream_read_char(stream);
2881 int has_pcr;
2882 rap_flag = (flags & 0x40) >> 6;
2883 has_pcr = flags & 0x10;
2884
2885 buf_size--;
2886 c--;
2887 stream_read(stream, pcrbuf, c);
2888
2889 if(has_pcr)
2890 {
2891 int pcr_pid = prog_pcr_pid(priv, priv->prog);
2892 if(pcr_pid == pid)
2893 {
2894 uint64_t pcr, pcr_ext;
2895
2896 pcr = (int64_t)(pcrbuf[0]) << 25;
2897 pcr |= pcrbuf[1] << 17 ;
2898 pcr |= (pcrbuf[2]) << 9;
2899 pcr |= pcrbuf[3] << 1 ;
2900 pcr |= (pcrbuf[4] & 0x80) >> 7;
2901
2902 pcr_ext = (pcrbuf[4] & 0x01) << 8;
2903 pcr_ext |= pcrbuf[5];
2904
2905 pcr = pcr * 300 + pcr_ext;
2906
2907 demuxer->reference_clock = (double)pcr/(double)27000000.0;
2908 }
2909 }
2910
2911 buf_size -= c;
2912 if(buf_size == 0)
2913 continue;
2914 }
2915 }
2916
2917 //find the program that the pid belongs to; if (it's the right one or -1) && pid_type==SL_SECTION
2918 //call parse_sl_section()
2919 pmt = pmt_of_pid(priv, pid, &mp4_dec);
2920 if(mp4_dec)
2921 {
2922 fill_extradata(mp4_dec, tss);
2923 if(IS_VIDEO(mp4_dec->object_type) || IS_AUDIO(mp4_dec->object_type))
2924 {
2925 tss->type = SL_PES_STREAM;
2926 tss->subtype = mp4_dec->object_type;
2927 }
2928 }
2929
2930
2931 //TABLE PARSING
2932
2933 base = priv->ts.packet_size - buf_size;
2934
2935 priv->last_pid = pid;
2936
2937 is_video = IS_VIDEO(tss->type) || (tss->type==SL_PES_STREAM && IS_VIDEO(tss->subtype));
2938 is_audio = IS_AUDIO(tss->type) || (tss->type==SL_PES_STREAM && IS_AUDIO(tss->subtype)) || (tss->type == PES_PRIVATE1);
2939 is_sub = IS_SUB(tss->type);
2940 pid_type = pid_type_from_pmt(priv, pid);
2941
2942 // PES CONTENT STARTS HERE
2943 if(! probe)
2944 {
2945 if((is_video || is_audio || is_sub) && is_start)
2946 ts_add_stream(demuxer, tss);
2947
2948 if(is_video && (demuxer->video->id == priv->ts.streams[pid].id))
2949 {
2950 ds = demuxer->video;
2951
2952 dp = &priv->fifo[1].pack;
2953 dp_offset = &priv->fifo[1].offset;
2954 buffer_size = &priv->fifo[1].buffer_size;
2955 si = &priv->vstr;
2956 }
2957 else if(is_audio && (demuxer->audio->id == priv->ts.streams[pid].id))
2958 {
2959 ds = demuxer->audio;
2960
2961 dp = &priv->fifo[0].pack;
2962 dp_offset = &priv->fifo[0].offset;
2963 buffer_size = &priv->fifo[0].buffer_size;
2964 si = &priv->astr;
2965 }
2966 else if(is_sub)
2967 {
2968 sh_sub_t *sh_sub = demuxer->sub->sh;
2969
2970 if(sh_sub && sh_sub->sid == tss->pid)
2971 {
2972 ds = demuxer->sub;
2973
2974 dp = &priv->fifo[2].pack;
2975 dp_offset = &priv->fifo[2].offset;
2976 buffer_size = &priv->fifo[2].buffer_size;
2977 }
2978 else
2979 {
2980 stream_skip(stream, buf_size+junk);
2981 continue;
2982 }
2983 }
2984
2985 //IS IT TIME TO QUEUE DATA to the dp_packet?
2986 if(is_start && (dp != NULL))
2987 {
2988 // subtitle packets _have_ to be submitted before video, otherwise
2989 // they might get stuck "forever" and subtitles will be completely
2990 // out of sync.
2991 if (is_video)
2992 fill_packet(demuxer, demuxer->sub, &priv->fifo[2].pack, &priv->fifo[2].offset, NULL);
2993 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
2994 }
2995
2996
2997 if(dp && *dp == NULL)
2998 {
2999 if(*buffer_size > MAX_PACK_BYTES)
3000 *buffer_size = MAX_PACK_BYTES;
3001 *dp = new_demux_packet(*buffer_size); //es->size
3002 *dp_offset = 0;
3003 if(! *dp)
3004 {
3005 fprintf(stderr, "fill_buffer, NEW_ADD_PACKET(%d)FAILED\n", *buffer_size);
3006 continue;
3007 }
3008 mp_msg(MSGT_DEMUX, MSGL_DBG2, "CREATED DP(%d)\n", *buffer_size);
3009 }
3010 }
3011
3012
3013 if(probe || !dp) //dp is NULL for tables and sections
3014 {
3015 p = &packet[base];
3016 }
3017 else //feeding
3018 {
3019 if(*dp_offset + buf_size > *buffer_size)
3020 {
3021 *buffer_size = *dp_offset + buf_size + TS_FEC_PACKET_SIZE;
3022 resize_demux_packet(*dp, *buffer_size);
3023 }
3024 p = &((*dp)->buffer[*dp_offset]);
3025 }
3026
3027 len = stream_read(stream, p, buf_size);
3028 if(len < buf_size)
3029 {
3030 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\r\nts_parse() couldn't read enough data: %d < %d\r\n", len, buf_size);
3031 continue;
3032 }
3033 stream_skip(stream, junk);
3034
3035 if(pid == 0)
3036 {
3037 parse_pat(priv, is_start, p, buf_size);
3038 continue;
3039 }
3040 else if((tss->type == SL_SECTION) && pmt)
3041 {
3042 int k, mp4_es_id = -1;
3043 ts_section_t *section;
3044 for(k = 0; k < pmt->mp4es_cnt; k++)
3045 {
3046 if(pmt->mp4es[k].decoder.object_type == MP4_OD && pmt->mp4es[k].decoder.stream_type == MP4_OD)
3047 mp4_es_id = pmt->mp4es[k].id;
3048 }
3049 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4ESID: %d\n", mp4_es_id);
3050 for(k = 0; k < pmt->es_cnt; k++)
3051 {
3052 if(pmt->es[k].mp4_es_id == mp4_es_id)
3053 {
3054 section = &(tss->section);
3055 parse_sl_section(pmt, section, is_start, &packet[base], buf_size);
3056 }
3057 }
3058 continue;
3059 }
3060 else
3061 {
3062 progid = prog_id_in_pat(priv, pid);
3063 if(progid != -1)
3064 {
3065 if(pid != demuxer->video->id && pid != demuxer->audio->id && pid != demuxer->sub->id)
3066 {
3067 parse_pmt(priv, progid, pid, is_start, &packet[base], buf_size);
3068 continue;
3069 }
3070 else
3071 mp_msg(MSGT_DEMUX, MSGL_ERR, "Argh! Data pid %d used in the PMT, Skipping PMT parsing!\n", pid);
3072 }
3073 }
3074
3075 if(!probe && !dp)
3076 continue;
3077
3078 if(is_start)
3079 {
3080 uint8_t *lang = NULL;
3081
3082 mp_msg(MSGT_DEMUX, MSGL_DBG2, "IS_START\n");
3083
3084 len = pes_parse2(p, buf_size, es, pid_type, pmt, pid);
3085 if(! len)
3086 {
3087 tss->is_synced = 0;
3088 continue;
3089 }
3090 es->pid = tss->pid;
3091 tss->is_synced |= es->is_synced || rap_flag;
3092 tss->payload_size = es->payload_size;
3093
3094 if((is_sub || is_audio) && (lang = pid_lang_from_pmt(priv, es->pid)))
3095 {
3096 memcpy(es->lang, lang, 3);
3097 es->lang[3] = 0;
3098 }
3099 else
3100 es->lang[0] = 0;
3101
3102 if(probe)
3103 {
3104 if(es->type == UNKNOWN)
3105 return 0;
3106
3107 tss->type = es->type;
3108 tss->subtype = es->subtype;
3109
3110 return 1;
3111 }
3112 else
3113 {
3114 if(es->pts == 0.0)
3115 es->pts = tss->pts = tss->last_pts;
3116 else
3117 tss->pts = tss->last_pts = es->pts;
3118
3119 mp_msg(MSGT_DEMUX, MSGL_DBG2, "ts_parse, NEW pid=%d, PSIZE: %u, type=%X, start=%p, len=%d\n",
3120 es->pid, es->payload_size, es->type, es->start, es->size);
3121
3122 demuxer->filepos = stream_tell(demuxer->stream) - es->size;
3123
3124 if(es->size < 0 || es->size > buf_size) {
3125 mp_msg(MSGT_DEMUX, MSGL_ERR, "Broken ES packet size\n");
3126 es->size = 0;
3127 }
3128 memmove(p, es->start, es->size);
3129 *dp_offset += es->size;
3130 (*dp)->flags = 0;
3131 (*dp)->pos = stream_tell(demuxer->stream);
3132 (*dp)->pts = es->pts;
3133
3134 if(retv > 0)
3135 return retv;
3136 else
3137 continue;
3138 }
3139 }
3140 else
3141 {
3142 uint16_t sz;
3143
3144 es->pid = tss->pid;
3145 es->type = tss->type;
3146 es->subtype = tss->subtype;
3147 es->pts = tss->pts = tss->last_pts;
3148 es->start = &packet[base];
3149
3150
3151 if(tss->payload_size > 0)
3152 {
3153 sz = FFMIN(tss->payload_size, buf_size);
3154 tss->payload_size -= sz;
3155 es->size = sz;
3156 }
3157 else
3158 {
3159 if(is_video)
3160 {
3161 sz = es->size = buf_size;
3162 }
3163 else
3164 {
3165 continue;
3166 }
3167 }
3168
3169
3170 if(! probe)
3171 {
3172 *dp_offset += sz;
3173
3174 if(*dp_offset >= MAX_PACK_BYTES)
3175 {
3176 (*dp)->pts = tss->last_pts;
3177 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
3178 return 1;
3179 }
3180
3181 continue;
3182 }
3183 else
3184 {
3185 memmove(es->start, p, sz);
3186
3187 if(es->size)
3188 return es->size;
3189 else
3190 continue;
3191 }
3192 }
3193 }
3194
3195 return 0;
3196 }
3197
3198
3199 static void reset_fifos(demuxer_t *demuxer, int a, int v, int s)
3200 {
3201 ts_priv_t* priv = demuxer->priv;
3202 if(a)
3203 {
3204 if(priv->fifo[0].pack != NULL)
3205 {
3206 free_demux_packet(priv->fifo[0].pack);
3207 priv->fifo[0].pack = NULL;
3208 }
3209 priv->fifo[0].offset = 0;
3210 }
3211
3212 if(v)
3213 {
3214 if(priv->fifo[1].pack != NULL)
3215 {
3216 free_demux_packet(priv->fifo[1].pack);
3217 priv->fifo[1].pack = NULL;
3218 }
3219 priv->fifo[1].offset = 0;
3220 }
3221
3222 if(s)
3223 {
3224 if(priv->fifo[2].pack != NULL)
3225 {
3226 free_demux_packet(priv->fifo[2].pack);
3227 priv->fifo[2].pack = NULL;
3228 }
3229 priv->fifo[2].offset = 0;
3230 }
3231 demuxer->reference_clock = MP_NOPTS_VALUE;
3232 }
3233
3234
3235 static void demux_seek_ts(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
3236 {
3237 demux_stream_t *d_audio=demuxer->audio;
3238 demux_stream_t *d_video=demuxer->video;
3239 sh_audio_t *sh_audio=d_audio->sh;
3240 sh_video_t *sh_video=d_video->sh;
3241 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
3242 int i, video_stats;
3243 off_t newpos;
3244
3245 //================= seek in MPEG-TS ==========================
3246
3247 ts_dump_streams(demuxer->priv);
3248 reset_fifos(demuxer, sh_audio != NULL, sh_video != NULL, demuxer->sub->id > 0);
3249
3250 demux_flush(demuxer);
3251
3252
3253
3254 video_stats = (sh_video != NULL);
3255 if(video_stats)
3256 {
3257 mp_msg(MSGT_DEMUX, MSGL_V, "IBPS: %d, vb: %d\r\n", sh_video->i_bps, priv->vbitrate);
3258 if(priv->vbitrate)
3259 video_stats = priv->vbitrate;
3260 else
3261 video_stats = sh_video->i_bps;
3262 }
3263
3264 newpos = (flags & SEEK_ABSOLUTE) ? demuxer->movi_start : demuxer->filepos;
3265 if(flags & SEEK_FACTOR) // float seek 0..1
3266 newpos+=(demuxer->movi_end-demuxer->movi_start)*rel_seek_secs;
3267 else
3268 {
3269 // time seek (secs)
3270 if(! video_stats) // unspecified or VBR
3271 newpos += 2324*75*rel_seek_secs; // 174.3 kbyte/sec
3272 else
3273 newpos += video_stats*rel_seek_secs;
3274 }
3275
3276
3277 if(newpos < demuxer->movi_start)
3278 newpos = demuxer->movi_start; //begininng of stream
3279
3280 stream_seek(demuxer->stream, newpos);
3281 for(i = 0; i < NB_PID_MAX; i++)
3282 if(priv->ts.pids[i] != NULL)
3283 priv->ts.pids[i]->is_synced = 0;
3284
3285 videobuf_code_len = 0;
3286
3287 if(sh_video != NULL)
3288 ds_fill_buffer(d_video);
3289
3290 if(sh_audio != NULL)
3291 {
3292 ds_fill_buffer(d_audio);
3293 }
3294
3295 while(sh_video != NULL)
3296 {
3297 if(sh_audio && !d_audio->eof && d_video->pts && d_audio->pts)
3298 {
3299 double a_pts=d_audio->pts;
3300 a_pts+=(ds_tell_pts(d_audio)-sh_audio->a_in_buffer_len)/(double)sh_audio->i_bps;
3301 if(d_video->pts > a_pts)
3302 {
3303 skip_audio_frame(sh_audio); // sync audio
3304 continue;
3305 }
3306 }
3307
3308
3309 i = sync_video_packet(d_video);
3310 if((sh_video->format == VIDEO_MPEG1) || (sh_video->format == VIDEO_MPEG2))
3311 {
3312 if(i==0x1B3 || i==0x1B8) break; // found it!
3313 }
3314 else if((sh_video->format == VIDEO_MPEG4) && (i==0x1B6))
3315 break;
3316 else if(sh_video->format == VIDEO_VC1 && (i==0x10E || i==0x10F))
3317 break;
3318 else //H264
3319 {
3320 if((i & ~0x60) == 0x105 || (i & ~0x60) == 0x107) break;
3321 }
3322
3323 if(!i || !skip_video_packet(d_video)) break; // EOF?
3324 }
3325 }
3326
3327
3328 static int demux_ts_fill_buffer(demuxer_t * demuxer, demux_stream_t *ds)
3329 {
3330 ES_stream_t es;
3331 ts_priv_t *priv = (ts_priv_t *)demuxer->priv;
3332
3333 return -ts_parse(demuxer, &es, priv->packet, 0);
3334 }
3335
3336
3337 static int ts_check_file_dmx(demuxer_t *demuxer)
3338 {
3339 return ts_check_file(demuxer) ? DEMUXER_TYPE_MPEG_TS : 0;
3340 }
3341
3342 static int is_usable_program(ts_priv_t *priv, pmt_t *pmt)
3343 {
3344 int j;
3345
3346 for(j = 0; j < pmt->es_cnt; j++)
3347 {
3348 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3349 continue;
3350 if(
3351 priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO ||
3352 priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO
3353 )
3354 return 1;
3355 }
3356
3357 return 0;
3358 }
3359
3360 static int demux_ts_control(demuxer_t *demuxer, int cmd, void *arg)
3361 {
3362 ts_priv_t* priv = (ts_priv_t *)demuxer->priv;
3363
3364 switch(cmd)
3365 {
3366 case DEMUXER_CTRL_SWITCH_AUDIO:
3367 case DEMUXER_CTRL_SWITCH_VIDEO:
3368 {
3369 void *sh = NULL;
3370 int i, n;
3371 int reftype, areset = 0, vreset = 0;
3372 demux_stream_t *ds;
3373
3374 if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
3375 {
3376 reftype = TYPE_VIDEO;
3377 ds = demuxer->video;
3378 vreset = 1;
3379 }
3380 else
3381 {
3382 reftype = TYPE_AUDIO;
3383 ds = demuxer->audio;
3384 areset = 1;
3385 }
3386 n = *((int*)arg);
3387 if(n == -2)
3388 {
3389 reset_fifos(demuxer, areset, vreset, 0);
3390 ds->id = -2;
3391 ds->sh = NULL;
3392 ds_free_packs(ds);
3393 *((int*)arg) = ds->id;
3394 return DEMUXER_CTRL_OK;
3395 }
3396
3397 if(n < 0)
3398 {
3399 for(i = 0; i < 8192; i++)
3400 {
3401 if(priv->ts.streams[i].id == ds->id && priv->ts.streams[i].type == reftype)
3402 break;
3403 }
3404
3405 while(!sh)
3406 {
3407 i = (i+1) % 8192;
3408 if(priv->ts.streams[i].type == reftype)
3409 {
3410 if(priv->ts.streams[i].id == ds->id) //we made a complete loop
3411 break;
3412 sh = priv->ts.streams[i].sh;
3413 }
3414 }
3415 }
3416 else //audio track <n>
3417 {
3418 if (n >= 8192 || priv->ts.streams[n].type != reftype) return DEMUXER_CTRL_NOTIMPL;
3419 i = n;
3420 sh = priv->ts.streams[i].sh;
3421 }
3422
3423 if(sh)
3424 {
3425 if(ds->id != priv->ts.streams[i].id)
3426 reset_fifos(demuxer, areset, vreset, 0);
3427 ds->id = priv->ts.streams[i].id;
3428 ds->sh = sh;
3429 ds_free_packs(ds);
3430 mp_msg(MSGT_DEMUX, MSGL_V, "\r\ndemux_ts, switched to audio pid %d, id: %d, sh: %p\r\n", i, ds->id, sh);
3431 }
3432
3433 *((int*)arg) = ds->id;
3434 return DEMUXER_CTRL_OK;
3435 }
3436
3437 case DEMUXER_CTRL_IDENTIFY_PROGRAM: //returns in prog->{aid,vid} the new ids that comprise a program
3438 {
3439 int i, j, cnt=0;
3440 int vid_done=0, aid_done=0;
3441 pmt_t *pmt = NULL;
3442 demux_program_t *prog = arg;
3443
3444 if(priv->pmt_cnt < 2)
3445 return DEMUXER_CTRL_NOTIMPL;
3446
3447 if(prog->progid == -1)
3448 {
3449 int cur_pmt_idx = 0;
3450
3451 for(i = 0; i < priv->pmt_cnt; i++)
3452 if(priv->pmt[i].progid == priv->prog)
3453 {
3454 cur_pmt_idx = i;
3455 break;
3456 }
3457
3458 i = (cur_pmt_idx + 1) % priv->pmt_cnt;
3459 while(i != cur_pmt_idx)
3460 {
3461 pmt = &priv->pmt[i];
3462 cnt = is_usable_program(priv, pmt);
3463 if(cnt)
3464 break;
3465 i = (i + 1) % priv->pmt_cnt;
3466 }
3467 }
3468 else
3469 {
3470 for(i = 0; i < priv->pmt_cnt; i++)
3471 if(priv->pmt[i].progid == prog->progid)
3472 {
3473 pmt = &priv->pmt[i]; //required program
3474 cnt = is_usable_program(priv, pmt);
3475 }
3476 }
3477
3478 if(!cnt)
3479 return DEMUXER_CTRL_NOTIMPL;
3480
3481 //finally some food
3482 prog->aid = prog->vid = -2; //no audio and no video by default
3483 for(j = 0; j < pmt->es_cnt; j++)
3484 {
3485 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3486 continue;
3487
3488 if(!vid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO)
3489 {
3490 vid_done = 1;
3491 prog->vid = pmt->es[j].pid;
3492 }
3493 else if(!aid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO)
3494 {
3495 aid_done = 1;
3496 prog->aid = pmt->es[j].pid;
3497 }
3498 }
3499
3500 priv->prog = prog->progid = pmt->progid;
3501 return DEMUXER_CTRL_OK;
3502 }
3503
3504 default:
3505 return DEMUXER_CTRL_NOTIMPL;
3506 }
3507 }
3508
3509
3510 const demuxer_desc_t demuxer_desc_mpeg_ts = {
3511 "MPEG-TS demuxer",
3512 "mpegts",
3513 "TS",
3514 "Nico Sabbi",
3515 "",
3516 DEMUXER_TYPE_MPEG_TS,
3517 0, // unsafe autodetect
3518 ts_check_file_dmx,
3519 demux_ts_fill_buffer,
3520 demux_open_ts,
3521 demux_close_ts,
3522 demux_seek_ts,
3523 demux_ts_control
3524 };
mplayer with SMedia Glamo drivers