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core: avoid using sh_video->pts as "current pts"
[mplayer/glamo.git] / libmpdemux / demux_ts.c
blobda41f14c5af458163f35898cf46293f5ee75ec0f
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<8192; 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 < 8192; 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 ? 0 : start_pos - priv->ts.packet_size);
1069 demuxer->movi_start = start_pos;
1070 demuxer->reference_clock = MP_NOPTS_VALUE;
1071 stream_reset(demuxer->stream);
1072 stream_seek(demuxer->stream, start_pos); //IF IT'S FROM A PIPE IT WILL FAIL, BUT WHO CARES?
1073
1074
1075 priv->last_pid = 8192; //invalid pid
1076
1077 for(i = 0; i < 3; i++)
1078 {
1079 priv->fifo[i].pack = NULL;
1080 priv->fifo[i].offset = 0;
1081 }
1082 priv->fifo[0].ds = demuxer->audio;
1083 priv->fifo[1].ds = demuxer->video;
1084 priv->fifo[2].ds = demuxer->sub;
1085
1086 priv->fifo[0].buffer_size = 1536;
1087 priv->fifo[1].buffer_size = 32767;
1088 priv->fifo[2].buffer_size = 32767;
1089
1090 priv->pat.section.buffer_len = 0;
1091 for(i = 0; i < priv->pmt_cnt; i++)
1092 priv->pmt[i].section.buffer_len = 0;
1093
1094 demuxer->filepos = stream_tell(demuxer->stream);
1095 return demuxer;
1096 }
1097
1098 static void demux_close_ts(demuxer_t * demuxer)
1099 {
1100 uint16_t i;
1101 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
1102
1103 if(priv)
1104 {
1105 free(priv->pat.section.buffer);
1106 free(priv->pat.progs);
1107
1108 if(priv->pmt)
1109 {
1110 for(i = 0; i < priv->pmt_cnt; i++)
1111 {
1112 free(priv->pmt[i].section.buffer);
1113 free(priv->pmt[i].es);
1114 }
1115 free(priv->pmt);
1116 }
1117 free(priv);
1118 }
1119 demuxer->priv=NULL;
1120 }
1121
1122
1123 #define getbits mp_getbits
1124
1125 static int mp4_parse_sl_packet(pmt_t *pmt, uint8_t *buf, uint16_t packet_len, int pid, ES_stream_t *pes_es)
1126 {
1127 int i, n, m, mp4_es_id = -1;
1128 uint64_t v = 0;
1129 uint32_t pl_size = 0;
1130 int deg_flag = 0;
1131 mp4_es_descr_t *es = NULL;
1132 mp4_sl_config_t *sl = NULL;
1133 uint8_t au_start = 0, au_end = 0, rap_flag = 0, ocr_flag = 0, padding = 0, padding_bits = 0, idle = 0;
1134
1135 pes_es->is_synced = 0;
1136 mp_msg(MSGT_DEMUXER,MSGL_V, "mp4_parse_sl_packet, pid: %d, pmt: %pm, packet_len: %d\n", pid, pmt, packet_len);
1137 if(! pmt || !packet_len)
1138 return 0;
1139
1140 for(i = 0; i < pmt->es_cnt; i++)
1141 {
1142 if(pmt->es[i].pid == pid)
1143 mp4_es_id = pmt->es[i].mp4_es_id;
1144 }
1145 if(mp4_es_id < 0)
1146 return -1;
1147
1148 for(i = 0; i < pmt->mp4es_cnt; i++)
1149 {
1150 if(pmt->mp4es[i].id == mp4_es_id)
1151 es = &(pmt->mp4es[i]);
1152 }
1153 if(! es)
1154 return -1;
1155
1156 pes_es->subtype = es->decoder.object_type;
1157
1158 sl = &(es->sl);
1159 if(!sl)
1160 return -1;
1161
1162 //now es is the complete es_descriptor of out mp4 ES stream
1163 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "ID: %d, FLAGS: 0x%x, subtype: %x\n", es->id, sl->flags, pes_es->subtype);
1164
1165 n = 0;
1166 if(sl->au_start)
1167 pes_es->sl.au_start = au_start = getbits(buf, n++, 1);
1168 else
1169 pes_es->sl.au_start = (pes_es->sl.last_au_end ? 1 : 0);
1170 if(sl->au_end)
1171 pes_es->sl.au_end = au_end = getbits(buf, n++, 1);
1172
1173 if(!sl->au_start && !sl->au_end)
1174 {
1175 pes_es->sl.au_start = pes_es->sl.au_end = au_start = au_end = 1;
1176 }
1177 pes_es->sl.last_au_end = pes_es->sl.au_end;
1178
1179
1180 if(sl->ocr_len > 0)
1181 ocr_flag = getbits(buf, n++, 1);
1182 if(sl->idle)
1183 idle = getbits(buf, n++, 1);
1184 if(sl->padding)
1185 padding = getbits(buf, n++, 1);
1186 if(padding)
1187 {
1188 padding_bits = getbits(buf, n, 3);
1189 n += 3;
1190 }
1191
1192 if(idle || (padding && !padding_bits))
1193 {
1194 pes_es->payload_size = 0;
1195 return -1;
1196 }
1197
1198 //(! idle && (!padding || padding_bits != 0)) is true
1199 n += sl->packet_seqnum_len;
1200 if(sl->degr_len)
1201 deg_flag = getbits(buf, n++, 1);
1202 if(deg_flag)
1203 n += sl->degr_len;
1204
1205 if(ocr_flag)
1206 {
1207 n += sl->ocr_len;
1208 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "OCR: %d bits\n", sl->ocr_len);
1209 }
1210
1211 if(packet_len * 8 <= n)
1212 return -1;
1213
1214 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "\nAU_START: %d, AU_END: %d\n", au_start, au_end);
1215 if(au_start)
1216 {
1217 int dts_flag = 0, cts_flag = 0, ib_flag = 0;
1218
1219 if(sl->random_accesspoint)
1220 rap_flag = getbits(buf, n++, 1);
1221
1222 //check commented because it seems it's rarely used, and we need this flag set in case of au_start
1223 //the decoder will eventually discard the payload if it can't decode it
1224 //if(rap_flag || sl->random_accesspoint_only)
1225 pes_es->is_synced = 1;
1226
1227 n += sl->au_seqnum_len;
1228 if(packet_len * 8 <= n+8)
1229 return -1;
1230 if(sl->use_ts)
1231 {
1232 dts_flag = getbits(buf, n++, 1);
1233 cts_flag = getbits(buf, n++, 1);
1234 }
1235 if(sl->instant_bitrate_len)
1236 ib_flag = getbits(buf, n++, 1);
1237 if(packet_len * 8 <= n+8)
1238 return -1;
1239 if(dts_flag && (sl->ts_len > 0))
1240 {
1241 n += sl->ts_len;
1242 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "DTS: %d bits\n", sl->ts_len);
1243 }
1244 if(packet_len * 8 <= n+8)
1245 return -1;
1246 if(cts_flag && (sl->ts_len > 0))
1247 {
1248 int i = 0, m;
1249
1250 while(i < sl->ts_len)
1251 {
1252 m = FFMIN(8, sl->ts_len - i);
1253 v |= getbits(buf, n, m);
1254 if(sl->ts_len - i > 8)
1255 v <<= 8;
1256 i += m;
1257 n += m;
1258 if(packet_len * 8 <= n+8)
1259 return -1;
1260 }
1261
1262 pes_es->pts = (double) v / (double) sl->ts_resolution;
1263 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "CTS: %d bits, value: %"PRIu64"/%d = %.3f\n", sl->ts_len, v, sl->ts_resolution, pes_es->pts);
1264 }
1265
1266
1267 i = 0;
1268 pl_size = 0;
1269 while(i < sl->au_len)
1270 {
1271 m = FFMIN(8, sl->au_len - i);
1272 pl_size |= getbits(buf, n, m);
1273 if(sl->au_len - i > 8)
1274 pl_size <<= 8;
1275 i += m;
1276 n += m;
1277 if(packet_len * 8 <= n+8)
1278 return -1;
1279 }
1280 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "AU_LEN: %u (%d bits)\n", pl_size, sl->au_len);
1281 if(ib_flag)
1282 n += sl->instant_bitrate_len;
1283 }
1284
1285 m = (n+7)/8;
1286 if(0 < pl_size && pl_size < pes_es->payload_size)
1287 pes_es->payload_size = pl_size;
1288
1289 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",
1290 n, m, pes_es->payload_size, pl_size, (int) rap_flag, (int) sl->random_accesspoint_only);
1291
1292 return m;
1293 }
1294
1295 //this function parses the extension fields in the PES header and returns the substream_id, or -1 in case of errors
1296 static int parse_pes_extension_fields(unsigned char *p, int pkt_len)
1297 {
1298 int skip;
1299 unsigned char flags;
1300
1301 if(!(p[7] & 0x1)) //no extension_field
1302 return -1;
1303 skip = 9;
1304 if(p[7] & 0x80)
1305 {
1306 skip += 5;
1307 if(p[7] & 0x40)
1308 skip += 5;
1309 }
1310 if(p[7] & 0x20) //escr_flag
1311 skip += 6;
1312 if(p[7] & 0x10) //es_rate_flag
1313 skip += 3;
1314 if(p[7] & 0x08)//dsm_trick_mode is unsupported, skip
1315 {
1316 skip = 0;//don't let's parse the extension fields
1317 }
1318 if(p[7] & 0x04) //additional_copy_info
1319 skip += 1;
1320 if(p[7] & 0x02) //pes_crc_flag
1321 skip += 2;
1322 if(skip >= pkt_len) //too few bytes
1323 return -1;
1324 flags = p[skip];
1325 skip++;
1326 if(flags & 0x80) //pes_private_data_flag
1327 skip += 16;
1328 if(skip >= pkt_len)
1329 return -1;
1330 if(flags & 0x40) //pack_header_field_flag
1331 {
1332 unsigned char l = p[skip];
1333 skip += l;
1334 }
1335 if(flags & 0x20) //program_packet_sequence_counter
1336 skip += 2;
1337 if(flags & 0x10) //p_std
1338 skip += 2;
1339 if(skip >= pkt_len)
1340 return -1;
1341 if(flags & 0x01) //finally the long desired pes_extension2
1342 {
1343 unsigned char l = p[skip]; //ext2 flag+len
1344 skip++;
1345 if((l == 0x81) && (skip < pkt_len))
1346 {
1347 int ssid = p[skip];
1348 mp_msg(MSGT_IDENTIFY, MSGL_V, "SUBSTREAM_ID=%d (0x%02X)\n", ssid, ssid);
1349 return ssid;
1350 }
1351 }
1352
1353 return -1;
1354 }
1355
1356 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)
1357 {
1358 unsigned char *p;
1359 uint32_t header_len;
1360 int64_t pts;
1361 uint32_t stream_id;
1362 uint32_t pkt_len, pes_is_aligned;
1363
1364 //Here we are always at the start of a PES packet
1365 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2(%p, %d): \n", buf, (uint32_t) packet_len);
1366
1367 if(packet_len == 0 || packet_len > 184)
1368 {
1369 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2, BUFFER LEN IS TOO SMALL OR TOO BIG: %d EXIT\n", packet_len);
1370 return 0;
1371 }
1372
1373 p = buf;
1374 pkt_len = packet_len;
1375
1376
1377 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: HEADER %02x %02x %02x %02x\n", p[0], p[1], p[2], p[3]);
1378 if (p[0] || p[1] || (p[2] != 1))
1379 {
1380 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: error HEADER %02x %02x %02x (should be 0x000001) \n", p[0], p[1], p[2]);
1381 return 0 ;
1382 }
1383
1384 packet_len -= 6;
1385 if(packet_len==0)
1386 {
1387 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: packet too short: %d, exit\n", packet_len);
1388 return 0;
1389 }
1390
1391 es->payload_size = (p[4] << 8 | p[5]);
1392 pes_is_aligned = (p[6] & 4);
1393
1394 stream_id = p[3];
1395
1396
1397 if (p[7] & 0x80)
1398 { /* pts available */
1399 pts = (int64_t)(p[9] & 0x0E) << 29 ;
1400 pts |= p[10] << 22 ;
1401 pts |= (p[11] & 0xFE) << 14 ;
1402 pts |= p[12] << 7 ;
1403 pts |= (p[13] & 0xFE) >> 1 ;
1404
1405 es->pts = pts / 90000.0;
1406 }
1407 else
1408 es->pts = 0.0;
1409
1410
1411 header_len = p[8];
1412
1413
1414 if (header_len + 9 > pkt_len) //9 are the bytes read up to the header_length field
1415 {
1416 mp_msg(MSGT_DEMUX, MSGL_DBG2, "demux_ts: illegal value for PES_header_data_length (0x%02x)\n", header_len);
1417 return 0;
1418 }
1419
1420 if(stream_id==0xfd)
1421 {
1422 int ssid = parse_pes_extension_fields(p, pkt_len);
1423 if((audio_substream_id!=-1) && (ssid != audio_substream_id))
1424 return 0;
1425 if(ssid == 0x72 && type_from_pmt != AUDIO_DTS && type_from_pmt != SPU_PGS)
1426 es->type = type_from_pmt = AUDIO_TRUEHD;
1427 }
1428
1429 p += header_len + 9;
1430 packet_len -= header_len + 3;
1431
1432 if(es->payload_size)
1433 es->payload_size -= header_len + 3;
1434
1435
1436 es->is_synced = 1; //only for SL streams we have to make sure it's really true, see below
1437 if (stream_id == 0xbd)
1438 {
1439 mp_msg(MSGT_DEMUX, MSGL_DBG3, "pes_parse2: audio buf = %02X %02X %02X %02X %02X %02X %02X %02X, 80: %d\n",
1440 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[0] & 0x80);
1441
1442
1443 /*
1444 * we check the descriptor tag first because some stations
1445 * do not include any of the A52 header info in their audio tracks
1446 * these "raw" streams may begin with a byte that looks like a stream type.
1447 */
1448
1449
1450 if(type_from_pmt == SPU_PGS)
1451 {
1452 es->start = p;
1453 es->size = packet_len;
1454 es->type = SPU_PGS;
1455 es->payload_size -= packet_len;
1456 return 1;
1457 }
1458 if(
1459 (type_from_pmt == AUDIO_A52) || /* A52 - raw */
1460 (packet_len >= 2 && p[0] == 0x0B && p[1] == 0x77) /* A52 - syncword */
1461 )
1462 {
1463 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 RAW OR SYNCWORD\n");
1464 es->start = p;
1465 es->size = packet_len;
1466 es->type = AUDIO_A52;
1467 es->payload_size -= packet_len;
1468
1469 return 1;
1470 }
1471 /* SPU SUBS */
1472 else if(type_from_pmt == SPU_DVB ||
1473 (packet_len >= 1 && (p[0] == 0x20) && pes_is_aligned)) // && p[1] == 0x00))
1474 {
1475 es->start = p;
1476 es->size = packet_len;
1477 es->type = SPU_DVB;
1478 es->payload_size -= packet_len;
1479
1480 return 1;
1481 }
1482 else if (pes_is_aligned && packet_len >= 1 && ((p[0] & 0xE0) == 0x20)) //SPU_DVD
1483 {
1484 //DVD SUBS
1485 es->start = p+1;
1486 es->size = packet_len-1;
1487 es->type = SPU_DVD;
1488 es->payload_size -= packet_len;
1489
1490 return 1;
1491 }
1492 else if (pes_is_aligned && packet_len >= 4 && (p[0] & 0xF8) == 0x80)
1493 {
1494 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 WITH HEADER\n");
1495 es->start = p+4;
1496 es->size = packet_len - 4;
1497 es->type = AUDIO_A52;
1498 es->payload_size -= packet_len;
1499
1500 return 1;
1501 }
1502 else if (pes_is_aligned && packet_len >= 1 && ((p[0]&0xf0) == 0xa0))
1503 {
1504 int pcm_offset;
1505
1506 for (pcm_offset=0; ++pcm_offset < packet_len-1 ; )
1507 {
1508 if (p[pcm_offset] == 0x01 && p[pcm_offset+1] == 0x80)
1509 { /* START */
1510 pcm_offset += 2;
1511 break;
1512 }
1513 }
1514
1515 es->start = p + pcm_offset;
1516 es->size = packet_len - pcm_offset;
1517 es->type = AUDIO_LPCM_BE;
1518 es->payload_size -= packet_len;
1519
1520 return 1;
1521 }
1522 else
1523 {
1524 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PES_PRIVATE1\n");
1525 es->start = p;
1526 es->size = packet_len;
1527 es->type = (type_from_pmt == UNKNOWN ? PES_PRIVATE1 : type_from_pmt);
1528 es->payload_size -= packet_len;
1529
1530 return 1;
1531 }
1532 }
1533 else if(((stream_id >= 0xe0) && (stream_id <= 0xef)) || (stream_id == 0xfd && type_from_pmt != UNKNOWN))
1534 {
1535 es->start = p;
1536 es->size = packet_len;
1537 if(type_from_pmt != UNKNOWN)
1538 es->type = type_from_pmt;
1539 else
1540 es->type = VIDEO_MPEG2;
1541 if(es->payload_size)
1542 es->payload_size -= packet_len;
1543
1544 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: M2V size %d\n", es->size);
1545 return 1;
1546 }
1547 else if ((stream_id == 0xfa))
1548 {
1549 int l;
1550
1551 es->is_synced = 0;
1552 if(type_from_pmt != UNKNOWN) //MP4 A/V or SL
1553 {
1554 es->start = p;
1555 es->size = packet_len;
1556 es->type = type_from_pmt;
1557
1558 if(type_from_pmt == SL_PES_STREAM)
1559 {
1560 //if(pes_is_aligned)
1561 //{
1562 l = mp4_parse_sl_packet(pmt, p, packet_len, pid, es);
1563 mp_msg(MSGT_DEMUX, MSGL_DBG2, "L=%d, TYPE=%x\n", l, type_from_pmt);
1564 if(l < 0)
1565 {
1566 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: couldn't parse SL header, passing along full PES payload\n");
1567 l = 0;
1568 }
1569 //}
1570
1571 es->start += l;
1572 es->size -= l;
1573 }
1574
1575 if(es->payload_size)
1576 es->payload_size -= packet_len;
1577 return 1;
1578 }
1579 }
1580 else if ((stream_id & 0xe0) == 0xc0)
1581 {
1582 es->start = p;
1583 es->size = packet_len;
1584
1585 if(type_from_pmt != UNKNOWN)
1586 es->type = type_from_pmt;
1587 else
1588 es->type = AUDIO_MP2;
1589
1590 es->payload_size -= packet_len;
1591
1592 return 1;
1593 }
1594 else if (type_from_pmt != -1) //as a last resort here we trust the PMT, if present
1595 {
1596 es->start = p;
1597 es->size = packet_len;
1598 es->type = type_from_pmt;
1599 es->payload_size -= packet_len;
1600
1601 return 1;
1602 }
1603 else
1604 {
1605 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: unknown packet, id: %x\n", stream_id);
1606 }
1607
1608 es->is_synced = 0;
1609 return 0;
1610 }
1611
1612
1613
1614
1615 static int ts_sync(stream_t *stream)
1616 {
1617 mp_msg(MSGT_DEMUX, MSGL_DBG3, "TS_SYNC \n");
1618
1619 while (!stream->eof)
1620 if (stream_read_char(stream) == 0x47)
1621 return 1;
1622
1623 return 0;
1624 }
1625
1626
1627 static void ts_dump_streams(ts_priv_t *priv)
1628 {
1629 int i;
1630
1631 for(i = 0; i < 3; i++)
1632 {
1633 if((priv->fifo[i].pack != NULL) && (priv->fifo[i].offset != 0))
1634 {
1635 resize_demux_packet(priv->fifo[i].pack, priv->fifo[i].offset);
1636 ds_add_packet(priv->fifo[i].ds, priv->fifo[i].pack);
1637 priv->fifo[i].offset = 0;
1638 priv->fifo[i].pack = NULL;
1639 }
1640 }
1641 }
1642
1643
1644 static inline int32_t prog_idx_in_pat(ts_priv_t *priv, uint16_t progid)
1645 {
1646 int x;
1647
1648 if(priv->pat.progs == NULL)
1649 return -1;
1650
1651 for(x = 0; x < priv->pat.progs_cnt; x++)
1652 {
1653 if(priv->pat.progs[x].id == progid)
1654 return x;
1655 }
1656
1657 return -1;
1658 }
1659
1660
1661 static inline int32_t prog_id_in_pat(ts_priv_t *priv, uint16_t pid)
1662 {
1663 int x;
1664
1665 if(priv->pat.progs == NULL)
1666 return -1;
1667
1668 for(x = 0; x < priv->pat.progs_cnt; x++)
1669 {
1670 if(priv->pat.progs[x].pmt_pid == pid)
1671 return priv->pat.progs[x].id;
1672 }
1673
1674 return -1;
1675 }
1676
1677 static int collect_section(ts_section_t *section, int is_start, unsigned char *buff, int size)
1678 {
1679 uint8_t *ptr;
1680 uint16_t tlen;
1681 int skip, tid;
1682
1683 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, start: %d, size: %d, collected: %d\n", is_start, size, section->buffer_len);
1684 if(! is_start && !section->buffer_len)
1685 return 0;
1686
1687 if(is_start)
1688 {
1689 if(! section->buffer)
1690 {
1691 section->buffer = malloc(4096 + 256);
1692 if(section->buffer == NULL)
1693 return 0;
1694 }
1695 section->buffer_len = 0;
1696 }
1697
1698 if(size + section->buffer_len > 4096+256)
1699 {
1700 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, excessive len: %d + %d\n", section->buffer_len, size);
1701 return 0;
1702 }
1703
1704 memcpy(&(section->buffer[section->buffer_len]), buff, size);
1705 section->buffer_len += size;
1706
1707 if(section->buffer_len < 3)
1708 return 0;
1709
1710 skip = section->buffer[0];
1711 if(skip + 4 > section->buffer_len)
1712 return 0;
1713
1714 ptr = &(section->buffer[skip + 1]);
1715 tid = ptr[0];
1716 tlen = ((ptr[1] & 0x0f) << 8) | ptr[2];
1717 mp_msg(MSGT_DEMUX, MSGL_V, "SKIP: %d+1, TID: %d, TLEN: %d, COLLECTED: %d\n", skip, tid, tlen, section->buffer_len);
1718 if(section->buffer_len < (skip+1+3+tlen))
1719 {
1720 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DATA IS NOT ENOUGH, NEXT TIME\n");
1721 return 0;
1722 }
1723
1724 return skip+1;
1725 }
1726
1727 static int parse_pat(ts_priv_t * priv, int is_start, unsigned char *buff, int size)
1728 {
1729 int skip;
1730 unsigned char *ptr;
1731 unsigned char *base;
1732 int entries, i;
1733 uint16_t progid;
1734 struct pat_progs_t *tmp;
1735 ts_section_t *section;
1736
1737 section = &(priv->pat.section);
1738 skip = collect_section(section, is_start, buff, size);
1739 if(! skip)
1740 return 0;
1741
1742 ptr = &(section->buffer[skip]);
1743 //PARSING
1744 priv->pat.table_id = ptr[0];
1745 if(priv->pat.table_id != 0)
1746 return 0;
1747 priv->pat.ssi = (ptr[1] >> 7) & 0x1;
1748 priv->pat.curr_next = ptr[5] & 0x01;
1749 priv->pat.ts_id = (ptr[3] << 8 ) | ptr[4];
1750 priv->pat.version_number = (ptr[5] >> 1) & 0x1F;
1751 priv->pat.section_length = ((ptr[1] & 0x03) << 8 ) | ptr[2];
1752 priv->pat.section_number = ptr[6];
1753 priv->pat.last_section_number = ptr[7];
1754
1755 //check_crc32(0xFFFFFFFFL, ptr, priv->pat.buffer_len - 4, &ptr[priv->pat.buffer_len - 4]);
1756 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);
1757
1758 entries = (int) (priv->pat.section_length - 9) / 4; //entries per section
1759
1760 for(i=0; i < entries; i++)
1761 {
1762 int32_t idx;
1763 base = &ptr[8 + i*4];
1764 progid = (base[0] << 8) | base[1];
1765
1766 if((idx = prog_idx_in_pat(priv, progid)) == -1)
1767 {
1768 int sz = sizeof(struct pat_progs_t) * (priv->pat.progs_cnt+1);
1769 tmp = realloc_struct(priv->pat.progs, priv->pat.progs_cnt+1, sizeof(struct pat_progs_t));
1770 if(tmp == NULL)
1771 {
1772 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PAT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
1773 break;
1774 }
1775 priv->pat.progs = tmp;
1776 idx = priv->pat.progs_cnt;
1777 priv->pat.progs_cnt++;
1778 }
1779
1780 priv->pat.progs[idx].id = progid;
1781 priv->pat.progs[idx].pmt_pid = ((base[2] & 0x1F) << 8) | base[3];
1782 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);
1783 mp_msg(MSGT_IDENTIFY, MSGL_V, "PROGRAM_ID=%d (0x%02X), PMT_PID: %d(0x%02X)\n",
1784 progid, progid, priv->pat.progs[idx].pmt_pid, priv->pat.progs[idx].pmt_pid);
1785 }
1786
1787 return 1;
1788 }
1789
1790
1791 static inline int32_t es_pid_in_pmt(pmt_t * pmt, uint16_t pid)
1792 {
1793 uint16_t i;
1794
1795 if(pmt == NULL)
1796 return -1;
1797
1798 if(pmt->es == NULL)
1799 return -1;
1800
1801 for(i = 0; i < pmt->es_cnt; i++)
1802 {
1803 if(pmt->es[i].pid == pid)
1804 return (int32_t) i;
1805 }
1806
1807 return -1;
1808 }
1809
1810
1811 static uint16_t get_mp4_desc_len(uint8_t *buf, int *len)
1812 {
1813 //uint16_t i = 0, size = 0;
1814 int i = 0, j, size = 0;
1815
1816 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PARSE_MP4_DESC_LEN(%d), bytes: ", *len);
1817 j = FFMIN(*len, 4);
1818 while(i < j)
1819 {
1820 mp_msg(MSGT_DEMUX, MSGL_DBG2, " %x ", buf[i]);
1821 size |= (buf[i] & 0x7f);
1822 if(!(buf[i] & 0x80))
1823 break;
1824 size <<= 7;
1825 i++;
1826 }
1827 mp_msg(MSGT_DEMUX, MSGL_DBG2, ", SIZE=%d\n", size);
1828
1829 *len = i+1;
1830 return size;
1831 }
1832
1833
1834 static uint16_t parse_mp4_slconfig_descriptor(uint8_t *buf, int len, void *elem)
1835 {
1836 int i = 0;
1837 mp4_es_descr_t *es;
1838 mp4_sl_config_t *sl;
1839
1840 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_SLCONFIG_DESCRIPTOR(%d)\n", len);
1841 es = (mp4_es_descr_t *) elem;
1842 if(!es)
1843 {
1844 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1845 return len;
1846 }
1847 sl = &(es->sl);
1848
1849 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;
1850 sl->ocr = sl->dts = sl->cts = 0;
1851
1852 if(buf[0] == 0)
1853 {
1854 i++;
1855 sl->flags = buf[i];
1856 i++;
1857 sl->ts_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1858 i += 4;
1859 sl->ocr_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1860 i += 4;
1861 sl->ts_len = buf[i];
1862 i++;
1863 sl->ocr_len = buf[i];
1864 i++;
1865 sl->au_len = buf[i];
1866 i++;
1867 sl->instant_bitrate_len = buf[i];
1868 i++;
1869 sl->degr_len = (buf[i] >> 4) & 0x0f;
1870 sl->au_seqnum_len = ((buf[i] & 0x0f) << 1) | ((buf[i+1] >> 7) & 0x01);
1871 i++;
1872 sl->packet_seqnum_len = ((buf[i] >> 2) & 0x1f);
1873 i++;
1874
1875 }
1876 else if(buf[0] == 1)
1877 {
1878 sl->flags = 0;
1879 sl->ts_resolution = 1000;
1880 sl->ts_len = 32;
1881 i++;
1882 }
1883 else if(buf[0] == 2)
1884 {
1885 sl->flags = 4;
1886 i++;
1887 }
1888 else
1889 {
1890 sl->flags = 0;
1891 i++;
1892 }
1893
1894 sl->au_start = (sl->flags >> 7) & 0x1;
1895 sl->au_end = (sl->flags >> 6) & 0x1;
1896 sl->random_accesspoint = (sl->flags >> 5) & 0x1;
1897 sl->random_accesspoint_only = (sl->flags >> 4) & 0x1;
1898 sl->padding = (sl->flags >> 3) & 0x1;
1899 sl->use_ts = (sl->flags >> 2) & 0x1;
1900 sl->idle = (sl->flags >> 1) & 0x1;
1901 sl->duration = sl->flags & 0x1;
1902
1903 if(sl->duration)
1904 {
1905 sl->timescale = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1906 i += 4;
1907 sl->au_duration = (buf[i] << 8) | buf[i+1];
1908 i += 2;
1909 sl->cts_duration = (buf[i] << 8) | buf[i+1];
1910 i += 2;
1911 }
1912 else //no support for fixed durations atm
1913 sl->timescale = sl->au_duration = sl->cts_duration = 0;
1914
1915 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",
1916 len, buf[0], sl->flags, sl->use_ts, sl->ts_len, sl->timescale, (uint64_t) sl->dts, (uint64_t) sl->cts);
1917
1918 return len;
1919 }
1920
1921 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem);
1922
1923 static uint16_t parse_mp4_decoder_config_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
1924 {
1925 int i = 0, j;
1926 mp4_es_descr_t *es;
1927 mp4_decoder_config_t *dec;
1928
1929 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_CONFIG_DESCRIPTOR(%d)\n", len);
1930 es = (mp4_es_descr_t *) elem;
1931 if(!es)
1932 {
1933 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1934 return len;
1935 }
1936 dec = (mp4_decoder_config_t*) &(es->decoder);
1937
1938 dec->object_type = buf[i];
1939 dec->stream_type = (buf[i+1]>>2) & 0x3f;
1940
1941 if(dec->object_type == 1 && dec->stream_type == 1)
1942 {
1943 dec->object_type = MP4_OD;
1944 dec->stream_type = MP4_OD;
1945 }
1946 else if(dec->stream_type == 4)
1947 {
1948 if(dec->object_type == 0x6a)
1949 dec->object_type = VIDEO_MPEG1;
1950 if(dec->object_type >= 0x60 && dec->object_type <= 0x65)
1951 dec->object_type = VIDEO_MPEG2;
1952 else if(dec->object_type == 0x20)
1953 dec->object_type = VIDEO_MPEG4;
1954 else if(dec->object_type == 0x21)
1955 dec->object_type = VIDEO_AVC;
1956 /*else if(dec->object_type == 0x22)
1957 fprintf(stderr, "TYPE 0x22\n");*/
1958 else dec->object_type = UNKNOWN;
1959 }
1960 else if(dec->stream_type == 5)
1961 {
1962 if(dec->object_type == 0x40)
1963 dec->object_type = AUDIO_AAC;
1964 else if(dec->object_type == 0x6b)
1965 dec->object_type = AUDIO_MP2;
1966 else if(dec->object_type >= 0x66 && dec->object_type <= 0x69)
1967 dec->object_type = AUDIO_MP2;
1968 else
1969 dec->object_type = UNKNOWN;
1970 }
1971 else
1972 dec->object_type = dec->stream_type = UNKNOWN;
1973
1974 if(dec->object_type != UNKNOWN)
1975 {
1976 //update the type of the current stream
1977 for(j = 0; j < pmt->es_cnt; j++)
1978 {
1979 if(pmt->es[j].mp4_es_id == es->id)
1980 {
1981 pmt->es[j].type = SL_PES_STREAM;
1982 }
1983 }
1984 }
1985
1986 if(len > 13)
1987 parse_mp4_descriptors(pmt, &buf[13], len-13, dec);
1988
1989 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);
1990
1991 return len;
1992 }
1993
1994 static uint16_t parse_mp4_decoder_specific_descriptor(uint8_t *buf, int len, void *elem)
1995 {
1996 int i;
1997 mp4_decoder_config_t *dec;
1998
1999 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_SPECIFIC_DESCRIPTOR(%d)\n", len);
2000 dec = (mp4_decoder_config_t *) elem;
2001 if(!dec)
2002 {
2003 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
2004 return len;
2005 }
2006
2007 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4 SPECIFIC INFO BYTES: \n");
2008 for(i=0; i<len; i++)
2009 mp_msg(MSGT_DEMUX, MSGL_DBG2, "%02x ", buf[i]);
2010 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\n");
2011
2012 if(len > MAX_EXTRADATA_SIZE)
2013 {
2014 mp_msg(MSGT_DEMUX, MSGL_ERR, "DEMUX_TS, EXTRADATA SUSPICIOUSLY BIG: %d, REFUSED\r\n", len);
2015 return len;
2016 }
2017 memcpy(dec->buf, buf, len);
2018 dec->buf_size = len;
2019
2020 return len;
2021 }
2022
2023 static uint16_t parse_mp4_es_descriptor(pmt_t *pmt, uint8_t *buf, int len)
2024 {
2025 int i = 0, j = 0, k, found;
2026 uint8_t flag;
2027 mp4_es_descr_t es, *target_es = NULL, *tmp;
2028
2029 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4ES: len=%d\n", len);
2030 memset(&es, 0, sizeof(mp4_es_descr_t));
2031 while(i < len)
2032 {
2033 es.id = (buf[i] << 8) | buf[i+1];
2034 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_ID: %d\n", es.id);
2035 i += 2;
2036 flag = buf[i];
2037 i++;
2038 if(flag & 0x80)
2039 i += 2;
2040 if(flag & 0x40)
2041 i += buf[i]+1;
2042 if(flag & 0x20) //OCR, maybe we need it
2043 i += 2;
2044
2045 j = parse_mp4_descriptors(pmt, &buf[i], len-i, &es);
2046 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);
2047 if(es.decoder.object_type != UNKNOWN && es.decoder.stream_type != UNKNOWN)
2048 {
2049 found = 0;
2050 //search this ES_ID if we already have it
2051 for(k=0; k < pmt->mp4es_cnt; k++)
2052 {
2053 if(pmt->mp4es[k].id == es.id)
2054 {
2055 target_es = &(pmt->mp4es[k]);
2056 found = 1;
2057 }
2058 }
2059
2060 if(! found)
2061 {
2062 tmp = realloc_struct(pmt->mp4es, pmt->mp4es_cnt+1, sizeof(mp4_es_descr_t));
2063 if(tmp == NULL)
2064 {
2065 fprintf(stderr, "CAN'T REALLOC MP4_ES_DESCR\n");
2066 continue;
2067 }
2068 pmt->mp4es = tmp;
2069 target_es = &(pmt->mp4es[pmt->mp4es_cnt]);
2070 pmt->mp4es_cnt++;
2071 }
2072 memcpy(target_es, &es, sizeof(mp4_es_descr_t));
2073 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_CNT: %d, ID=%d\n", pmt->mp4es_cnt, target_es->id);
2074 }
2075
2076 i += j;
2077 }
2078
2079 return len;
2080 }
2081
2082 static void parse_mp4_object_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2083 {
2084 int i, j = 0, id;
2085
2086 i=0;
2087 id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
2088 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_OBJECT_DESCRIPTOR: len=%d, OD_ID=%d\n", len, id);
2089 if(buf[1] & 0x20)
2090 {
2091 i += buf[2] + 1; //url
2092 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2093 }
2094 else
2095 {
2096 i = 2;
2097
2098 while(i < len)
2099 {
2100 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2101 mp_msg(MSGT_DEMUX, MSGL_V, "OBJD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2102 i += j;
2103 }
2104 }
2105 }
2106
2107
2108 static void parse_mp4_iod(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2109 {
2110 int i, j = 0;
2111 mp4_od_t *iod = &(pmt->iod);
2112
2113 iod->id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
2114 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_IOD: len=%d, IOD_ID=%d\n", len, iod->id);
2115 i = 2;
2116 if(buf[1] & 0x20)
2117 {
2118 i += buf[2] + 1; //url
2119 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2120 }
2121 else
2122 {
2123 i = 7;
2124 while(i < len)
2125 {
2126 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2127 mp_msg(MSGT_DEMUX, MSGL_V, "IOD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2128 i += j;
2129 }
2130 }
2131 }
2132
2133 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2134 {
2135 int tag, descr_len, i = 0, j = 0;
2136
2137 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DESCRIPTORS, len=%d\n", len);
2138 if(! len)
2139 return len;
2140
2141 while(i < len)
2142 {
2143 tag = buf[i];
2144 j = len - i -1;
2145 descr_len = get_mp4_desc_len(&(buf[i+1]), &j);
2146 mp_msg(MSGT_DEMUX, MSGL_V, "TAG=%d (0x%x), DESCR_len=%d, len=%d, j=%d\n", tag, tag, descr_len, len, j);
2147 if(descr_len > len - j+1)
2148 {
2149 mp_msg(MSGT_DEMUX, MSGL_V, "descriptor is too long, exit\n");
2150 return len;
2151 }
2152 i += j+1;
2153
2154 switch(tag)
2155 {
2156 case 0x1:
2157 parse_mp4_object_descriptor(pmt, &(buf[i]), descr_len, elem);
2158 break;
2159 case 0x2:
2160 parse_mp4_iod(pmt, &(buf[i]), descr_len, elem);
2161 break;
2162 case 0x3:
2163 parse_mp4_es_descriptor(pmt, &(buf[i]), descr_len);
2164 break;
2165 case 0x4:
2166 parse_mp4_decoder_config_descriptor(pmt, &buf[i], descr_len, elem);
2167 break;
2168 case 0x05:
2169 parse_mp4_decoder_specific_descriptor(&buf[i], descr_len, elem);
2170 break;
2171 case 0x6:
2172 parse_mp4_slconfig_descriptor(&buf[i], descr_len, elem);
2173 break;
2174 default:
2175 mp_msg(MSGT_DEMUX, MSGL_V, "Unsupported mp4 descriptor 0x%x\n", tag);
2176 }
2177 i += descr_len;
2178 }
2179
2180 return len;
2181 }
2182
2183 static ES_stream_t *new_pid(ts_priv_t *priv, int pid)
2184 {
2185 ES_stream_t *tss;
2186
2187 tss = malloc(sizeof(ES_stream_t));
2188 if(! tss)
2189 return NULL;
2190 memset(tss, 0, sizeof(ES_stream_t));
2191 tss->pid = pid;
2192 tss->last_cc = -1;
2193 tss->type = UNKNOWN;
2194 tss->subtype = UNKNOWN;
2195 tss->is_synced = 0;
2196 tss->extradata = NULL;
2197 tss->extradata_alloc = tss->extradata_len = 0;
2198 priv->ts.pids[pid] = tss;
2199
2200 return tss;
2201 }
2202
2203
2204 static int parse_program_descriptors(pmt_t *pmt, uint8_t *buf, uint16_t len)
2205 {
2206 uint16_t i = 0, k, olen = len;
2207
2208 while(len > 0)
2209 {
2210 mp_msg(MSGT_DEMUX, MSGL_V, "PROG DESCR, TAG=%x, LEN=%d(%x)\n", buf[i], buf[i+1], buf[i+1]);
2211 if(buf[i+1] > len-2)
2212 {
2213 mp_msg(MSGT_DEMUX, MSGL_V, "ERROR, descriptor len is too long, skipping\n");
2214 return olen;
2215 }
2216
2217 if(buf[i] == 0x1d)
2218 {
2219 if(buf[i+3] == 2) //buggy versions of vlc muxer make this non-standard mess (missing iod_scope)
2220 k = 3;
2221 else
2222 k = 4; //this is standard compliant
2223 parse_mp4_descriptors(pmt, &buf[i+k], (int) buf[i+1]-(k-2), NULL);
2224 }
2225
2226 len -= 2 + buf[i+1];
2227 }
2228
2229 return olen;
2230 }
2231
2232 static int parse_descriptors(struct pmt_es_t *es, uint8_t *ptr)
2233 {
2234 int j, descr_len, len;
2235
2236 j = 0;
2237 len = es->descr_length;
2238 while(len > 2)
2239 {
2240 descr_len = ptr[j+1];
2241 mp_msg(MSGT_DEMUX, MSGL_V, "...descr id: 0x%x, len=%d\n", ptr[j], descr_len);
2242 if(descr_len > len)
2243 {
2244 mp_msg(MSGT_DEMUX, MSGL_ERR, "INVALID DESCR LEN for tag %02x: %d vs %d max, EXIT LOOP\n", ptr[j], descr_len, len);
2245 return -1;
2246 }
2247
2248
2249 if(ptr[j] == 0x6a || ptr[j] == 0x7a) //A52 Descriptor
2250 {
2251 if(es->type == 0x6)
2252 {
2253 es->type = AUDIO_A52;
2254 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB A52 Descriptor\n");
2255 }
2256 }
2257 else if(ptr[j] == 0x7b) //DVB DTS Descriptor
2258 {
2259 if(es->type == 0x6)
2260 {
2261 es->type = AUDIO_DTS;
2262 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB DTS Descriptor\n");
2263 }
2264 }
2265 else if(ptr[j] == 0x56) // Teletext
2266 {
2267 if(descr_len >= 5) {
2268 memcpy(es->lang, ptr+2, 3);
2269 es->lang[3] = 0;
2270 }
2271 es->type = SPU_TELETEXT;
2272 }
2273 else if(ptr[j] == 0x59) //Subtitling Descriptor
2274 {
2275 uint8_t subtype;
2276
2277 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Subtitling Descriptor\n");
2278 if(descr_len < 8)
2279 {
2280 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Descriptor length too short for DVB Subtitle Descriptor: %d, SKIPPING\n", descr_len);
2281 }
2282 else
2283 {
2284 memcpy(es->lang, &ptr[j+2], 3);
2285 es->lang[3] = 0;
2286 subtype = ptr[j+5];
2287 if(
2288 (subtype >= 0x10 && subtype <= 0x13) ||
2289 (subtype >= 0x20 && subtype <= 0x23)
2290 )
2291 {
2292 es->type = SPU_DVB;
2293 //page parameters: compo page 2 bytes, ancillary page 2 bytes
2294 }
2295 else
2296 es->type = UNKNOWN;
2297 }
2298 }
2299 else if(ptr[j] == 0x50) //Component Descriptor
2300 {
2301 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Component Descriptor\n");
2302 memcpy(es->lang, &ptr[j+5], 3);
2303 es->lang[3] = 0;
2304 }
2305 else if(ptr[j] == 0xa) //Language Descriptor
2306 {
2307 memcpy(es->lang, &ptr[j+2], 3);
2308 es->lang[3] = 0;
2309 mp_msg(MSGT_DEMUX, MSGL_V, "Language Descriptor: %s\n", es->lang);
2310 }
2311 else if(ptr[j] == 0x5) //Registration Descriptor (looks like e fourCC :) )
2312 {
2313 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor\n");
2314 if(descr_len < 4)
2315 {
2316 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor length too short: %d, SKIPPING\n", descr_len);
2317 }
2318 else
2319 {
2320 char *d;
2321 memcpy(es->format_descriptor, &ptr[j+2], 4);
2322 es->format_descriptor[4] = 0;
2323
2324 d = &ptr[j+2];
2325 if(d[0] == 'A' && d[1] == 'C' && d[2] == '-' && d[3] == '3')
2326 {
2327 es->type = AUDIO_A52;
2328 }
2329 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '1')
2330 {
2331 es->type = AUDIO_DTS;
2332 }
2333 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '2')
2334 {
2335 es->type = AUDIO_DTS;
2336 }
2337 else if(d[0] == 'V' && d[1] == 'C' && d[2] == '-' && d[3] == '1')
2338 {
2339 es->type = VIDEO_VC1;
2340 }
2341 else if(d[0] == 'd' && d[1] == 'r' && d[2] == 'a' && d[3] == 'c')
2342 {
2343 es->type = VIDEO_DIRAC;
2344 }
2345 else
2346 es->type = UNKNOWN;
2347 mp_msg(MSGT_DEMUX, MSGL_DBG2, "FORMAT %s\n", es->format_descriptor);
2348 }
2349 }
2350 else if(ptr[j] == 0x1e)
2351 {
2352 es->mp4_es_id = (ptr[j+2] << 8) | ptr[j+3];
2353 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);
2354 }
2355 else
2356 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Unknown descriptor 0x%x, SKIPPING\n", ptr[j]);
2357
2358 len -= 2 + descr_len;
2359 j += 2 + descr_len;
2360 }
2361
2362 return 1;
2363 }
2364
2365 static int parse_sl_section(pmt_t *pmt, ts_section_t *section, int is_start, unsigned char *buff, int size)
2366 {
2367 int tid, len, skip;
2368 uint8_t *ptr;
2369 skip = collect_section(section, is_start, buff, size);
2370 if(! skip)
2371 return 0;
2372
2373 ptr = &(section->buffer[skip]);
2374 tid = ptr[0];
2375 len = ((ptr[1] & 0x0f) << 8) | ptr[2];
2376 mp_msg(MSGT_DEMUX, MSGL_V, "TABLEID: %d (av. %d), skip=%d, LEN: %d\n", tid, section->buffer_len, skip, len);
2377 if(len > 4093 || section->buffer_len < len || tid != 5)
2378 {
2379 mp_msg(MSGT_DEMUX, MSGL_V, "SECTION TOO LARGE or wrong section type, EXIT\n");
2380 return 0;
2381 }
2382
2383 if(! (ptr[5] & 1))
2384 return 0;
2385
2386 //8 is the current position, len - 9 is the amount of data available
2387 parse_mp4_descriptors(pmt, &ptr[8], len - 9, NULL);
2388
2389 return 1;
2390 }
2391
2392 static int parse_pmt(ts_priv_t * priv, uint16_t progid, uint16_t pid, int is_start, unsigned char *buff, int size)
2393 {
2394 unsigned char *base, *es_base;
2395 pmt_t *pmt;
2396 int32_t idx, es_count, section_bytes;
2397 uint8_t m=0;
2398 int skip;
2399 pmt_t *tmp;
2400 struct pmt_es_t *tmp_es;
2401 ts_section_t *section;
2402 ES_stream_t *tss;
2403
2404 idx = progid_idx_in_pmt(priv, progid);
2405
2406 if(idx == -1)
2407 {
2408 int sz = (priv->pmt_cnt + 1) * sizeof(pmt_t);
2409 tmp = realloc_struct(priv->pmt, priv->pmt_cnt + 1, sizeof(pmt_t));
2410 if(tmp == NULL)
2411 {
2412 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
2413 return 0;
2414 }
2415 priv->pmt = tmp;
2416 idx = priv->pmt_cnt;
2417 memset(&(priv->pmt[idx]), 0, sizeof(pmt_t));
2418 priv->pmt_cnt++;
2419 priv->pmt[idx].progid = progid;
2420 }
2421
2422 pmt = &(priv->pmt[idx]);
2423
2424 section = &(pmt->section);
2425 skip = collect_section(section, is_start, buff, size);
2426 if(! skip)
2427 return 0;
2428
2429 base = &(section->buffer[skip]);
2430
2431 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",
2432 progid, pmt->section.buffer_len, is_start, pid, size, m, pmt->es_cnt, idx, pmt);
2433
2434 pmt->table_id = base[0];
2435 if(pmt->table_id != 2)
2436 return -1;
2437 pmt->ssi = base[1] & 0x80;
2438 pmt->section_length = (((base[1] & 0xf) << 8 ) | base[2]);
2439 pmt->version_number = (base[5] >> 1) & 0x1f;
2440 pmt->curr_next = (base[5] & 1);
2441 pmt->section_number = base[6];
2442 pmt->last_section_number = base[7];
2443 pmt->PCR_PID = ((base[8] & 0x1f) << 8 ) | base[9];
2444 pmt->prog_descr_length = ((base[10] & 0xf) << 8 ) | base[11];
2445 if(pmt->prog_descr_length > pmt->section_length - 9)
2446 {
2447 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, INVALID PROG_DESCR LENGTH (%d vs %d)\n", pmt->prog_descr_length, pmt->section_length - 9);
2448 return -1;
2449 }
2450
2451 if(pmt->prog_descr_length)
2452 parse_program_descriptors(pmt, &base[12], pmt->prog_descr_length);
2453
2454 es_base = &base[12 + pmt->prog_descr_length]; //the beginning of th ES loop
2455
2456 section_bytes= pmt->section_length - 13 - pmt->prog_descr_length;
2457 es_count = 0;
2458
2459 while(section_bytes >= 5)
2460 {
2461 int es_pid, es_type;
2462
2463 es_type = es_base[0];
2464 es_pid = ((es_base[1] & 0x1f) << 8) | es_base[2];
2465
2466 idx = es_pid_in_pmt(pmt, es_pid);
2467 if(idx == -1)
2468 {
2469 int sz = sizeof(struct pmt_es_t) * (pmt->es_cnt + 1);
2470 tmp_es = realloc_struct(pmt->es, pmt->es_cnt + 1, sizeof(struct pmt_es_t));
2471 if(tmp_es == NULL)
2472 {
2473 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT, COULDN'T ALLOCATE %d bytes for PMT_ES\n", sz);
2474 continue;
2475 }
2476 pmt->es = tmp_es;
2477 idx = pmt->es_cnt;
2478 memset(&(pmt->es[idx]), 0, sizeof(struct pmt_es_t));
2479 pmt->es_cnt++;
2480 }
2481
2482 pmt->es[idx].descr_length = ((es_base[3] & 0xf) << 8) | es_base[4];
2483
2484
2485 if(pmt->es[idx].descr_length > section_bytes - 5)
2486 {
2487 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, ES_DESCR_LENGTH TOO LARGE %d > %d, EXIT\n",
2488 pmt->es[idx].descr_length, section_bytes - 5);
2489 return -1;
2490 }
2491
2492
2493 pmt->es[idx].pid = es_pid;
2494 if(es_type != 0x6)
2495 pmt->es[idx].type = UNKNOWN;
2496 else
2497 pmt->es[idx].type = es_type;
2498
2499 parse_descriptors(&pmt->es[idx], &es_base[5]);
2500
2501 switch(es_type)
2502 {
2503 case 1:
2504 pmt->es[idx].type = VIDEO_MPEG1;
2505 break;
2506 case 2:
2507 pmt->es[idx].type = VIDEO_MPEG2;
2508 break;
2509 case 3:
2510 case 4:
2511 pmt->es[idx].type = AUDIO_MP2;
2512 break;
2513 case 6:
2514 if(pmt->es[idx].type == 0x6) //this could have been ovrwritten by parse_descriptors
2515 pmt->es[idx].type = UNKNOWN;
2516 break;
2517 case 0x10:
2518 pmt->es[idx].type = VIDEO_MPEG4;
2519 break;
2520 case 0x0f:
2521 pmt->es[idx].type = AUDIO_AAC;
2522 break;
2523 case 0x11:
2524 pmt->es[idx].type = AUDIO_AAC_LATM;
2525 break;
2526 case 0x1b:
2527 pmt->es[idx].type = VIDEO_H264;
2528 break;
2529 case 0x12:
2530 pmt->es[idx].type = SL_PES_STREAM;
2531 break;
2532 case 0x13:
2533 pmt->es[idx].type = SL_SECTION;
2534 break;
2535 case 0x81:
2536 pmt->es[idx].type = AUDIO_A52;
2537 break;
2538 case 0x8A:
2539 case 0x82:
2540 case 0x85:
2541 case 0x86:
2542 pmt->es[idx].type = AUDIO_DTS;
2543 break;
2544 case 0x90:
2545 pmt->es[idx].type = SPU_PGS;
2546 break;
2547 case 0xD1:
2548 pmt->es[idx].type = VIDEO_DIRAC;
2549 break;
2550 case 0xEA:
2551 pmt->es[idx].type = VIDEO_VC1;
2552 break;
2553 default:
2554 mp_msg(MSGT_DEMUX, MSGL_DBG2, "UNKNOWN ES TYPE=0x%x\n", es_type);
2555 pmt->es[idx].type = UNKNOWN;
2556 }
2557
2558 tss = priv->ts.pids[es_pid]; //an ES stream
2559 if(tss == NULL)
2560 {
2561 tss = new_pid(priv, es_pid);
2562 if(tss)
2563 tss->type = pmt->es[idx].type;
2564 }
2565
2566 section_bytes -= 5 + pmt->es[idx].descr_length;
2567 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",
2568 progid, idx, es_count, pmt->es[idx].pid, pmt->es[idx].pid, pmt->es[idx].type, pmt->es[idx].descr_length, section_bytes);
2569
2570
2571 es_base += 5 + pmt->es[idx].descr_length;
2572
2573 es_count++;
2574 }
2575
2576 mp_msg(MSGT_DEMUX, MSGL_V, "----------------------------\n");
2577 return 1;
2578 }
2579
2580 static pmt_t* pmt_of_pid(ts_priv_t *priv, int pid, mp4_decoder_config_t **mp4_dec)
2581 {
2582 int32_t i, j, k;
2583
2584 if(priv->pmt)
2585 {
2586 for(i = 0; i < priv->pmt_cnt; i++)
2587 {
2588 if(priv->pmt[i].es && priv->pmt[i].es_cnt)
2589 {
2590 for(j = 0; j < priv->pmt[i].es_cnt; j++)
2591 {
2592 if(priv->pmt[i].es[j].pid == pid)
2593 {
2594 //search mp4_es_id
2595 if(priv->pmt[i].es[j].mp4_es_id)
2596 {
2597 for(k = 0; k < priv->pmt[i].mp4es_cnt; k++)
2598 {
2599 if(priv->pmt[i].mp4es[k].id == priv->pmt[i].es[j].mp4_es_id)
2600 {
2601 *mp4_dec = &(priv->pmt[i].mp4es[k].decoder);
2602 break;
2603 }
2604 }
2605 }
2606
2607 return &(priv->pmt[i]);
2608 }
2609 }
2610 }
2611 }
2612 }
2613
2614 return NULL;
2615 }
2616
2617
2618 static inline int32_t pid_type_from_pmt(ts_priv_t *priv, int pid)
2619 {
2620 int32_t pmt_idx, pid_idx, i, j;
2621
2622 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2623
2624 if(pmt_idx != -1)
2625 {
2626 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2627 if(pid_idx != -1)
2628 return priv->pmt[pmt_idx].es[pid_idx].type;
2629 }
2630 //else
2631 //{
2632 for(i = 0; i < priv->pmt_cnt; i++)
2633 {
2634 pmt_t *pmt = &(priv->pmt[i]);
2635 for(j = 0; j < pmt->es_cnt; j++)
2636 if(pmt->es[j].pid == pid)
2637 return pmt->es[j].type;
2638 }
2639 //}
2640
2641 return UNKNOWN;
2642 }
2643
2644
2645 static inline uint8_t *pid_lang_from_pmt(ts_priv_t *priv, int pid)
2646 {
2647 int32_t pmt_idx, pid_idx, i, j;
2648
2649 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2650
2651 if(pmt_idx != -1)
2652 {
2653 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2654 if(pid_idx != -1)
2655 return priv->pmt[pmt_idx].es[pid_idx].lang;
2656 }
2657 else
2658 {
2659 for(i = 0; i < priv->pmt_cnt; i++)
2660 {
2661 pmt_t *pmt = &(priv->pmt[i]);
2662 for(j = 0; j < pmt->es_cnt; j++)
2663 if(pmt->es[j].pid == pid)
2664 return pmt->es[j].lang;
2665 }
2666 }
2667
2668 return NULL;
2669 }
2670
2671
2672 static int fill_packet(demuxer_t *demuxer, demux_stream_t *ds, demux_packet_t **dp, int *dp_offset, TS_stream_info *si)
2673 {
2674 int ret = 0;
2675
2676 if((*dp != NULL) && (*dp_offset > 0))
2677 {
2678 ret = *dp_offset;
2679 resize_demux_packet(*dp, ret); //shrinked to the right size
2680 ds_add_packet(ds, *dp);
2681 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);
2682 if(si)
2683 {
2684 float diff = (*dp)->pts - si->last_pts;
2685 float dur;
2686
2687 if(abs(diff) > 1) //1 second, there's a discontinuity
2688 {
2689 si->duration += si->last_pts - si->first_pts;
2690 si->first_pts = si->last_pts = (*dp)->pts;
2691 }
2692 else
2693 {
2694 si->last_pts = (*dp)->pts;
2695 }
2696 si->size += ret;
2697 dur = si->duration + (si->last_pts - si->first_pts);
2698
2699 if(dur > 0 && ds == demuxer->video)
2700 {
2701 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2702 if(dur > 1) //otherwise it may be unreliable
2703 priv->vbitrate = (uint32_t) ((float) si->size / dur);
2704 }
2705 }
2706 }
2707
2708 *dp = NULL;
2709 *dp_offset = 0;
2710
2711 return ret;
2712 }
2713
2714 static int fill_extradata(mp4_decoder_config_t * mp4_dec, ES_stream_t *tss)
2715 {
2716 uint8_t *tmp;
2717
2718 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4_dec: %p, pid: %d\n", mp4_dec, tss->pid);
2719
2720 if(mp4_dec->buf_size > tss->extradata_alloc)
2721 {
2722 tmp = realloc(tss->extradata, mp4_dec->buf_size);
2723 if(!tmp)
2724 return 0;
2725 tss->extradata = tmp;
2726 tss->extradata_alloc = mp4_dec->buf_size;
2727 }
2728 memcpy(tss->extradata, mp4_dec->buf, mp4_dec->buf_size);
2729 tss->extradata_len = mp4_dec->buf_size;
2730 mp_msg(MSGT_DEMUX, MSGL_V, "EXTRADATA: %p, alloc=%d, len=%d\n", tss->extradata, tss->extradata_alloc, tss->extradata_len);
2731
2732 return tss->extradata_len;
2733 }
2734
2735 // 0 = EOF or no stream found
2736 // else = [-] number of bytes written to the packet
2737 static int ts_parse(demuxer_t *demuxer , ES_stream_t *es, unsigned char *packet, int probe)
2738 {
2739 ES_stream_t *tss;
2740 int buf_size, is_start, pid, base;
2741 int len, cc, cc_ok, afc, retv = 0, is_video, is_audio, is_sub;
2742 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2743 stream_t *stream = demuxer->stream;
2744 char *p;
2745 demux_stream_t *ds = NULL;
2746 demux_packet_t **dp = NULL;
2747 int *dp_offset = 0, *buffer_size = 0;
2748 int32_t progid, pid_type, bad, ts_error;
2749 int junk = 0, rap_flag = 0;
2750 pmt_t *pmt;
2751 mp4_decoder_config_t *mp4_dec;
2752 TS_stream_info *si;
2753
2754
2755 while(1)
2756 {
2757 bad = ts_error = 0;
2758 ds = NULL;
2759 dp = NULL;
2760 dp_offset = buffer_size = NULL;
2761 rap_flag = 0;
2762 mp4_dec = NULL;
2763 es->is_synced = 0;
2764 es->lang[0] = 0;
2765 si = NULL;
2766
2767 junk = priv->ts.packet_size - TS_PACKET_SIZE;
2768 buf_size = priv->ts.packet_size - junk;
2769
2770 if(stream_eof(stream))
2771 {
2772 if(! probe)
2773 {
2774 ts_dump_streams(priv);
2775 demuxer->filepos = stream_tell(demuxer->stream);
2776 }
2777
2778 return 0;
2779 }
2780
2781
2782 if(! ts_sync(stream))
2783 {
2784 mp_msg(MSGT_DEMUX, MSGL_INFO, "TS_PARSE: COULDN'T SYNC\n");
2785 return 0;
2786 }
2787
2788 len = stream_read(stream, &packet[1], 3);
2789 if (len != 3)
2790 return 0;
2791 buf_size -= 4;
2792
2793 if((packet[1] >> 7) & 0x01) //transport error
2794 ts_error = 1;
2795
2796
2797 is_start = packet[1] & 0x40;
2798 pid = ((packet[1] & 0x1f) << 8) | packet[2];
2799
2800 tss = priv->ts.pids[pid]; //an ES stream
2801 if(tss == NULL)
2802 {
2803 tss = new_pid(priv, pid);
2804 if(tss == NULL)
2805 continue;
2806 }
2807
2808 cc = (packet[3] & 0xf);
2809 cc_ok = (tss->last_cc < 0) || ((((tss->last_cc + 1) & 0x0f) == cc));
2810 tss->last_cc = cc;
2811
2812 bad = ts_error; // || (! cc_ok);
2813 if(bad)
2814 {
2815 if(priv->keep_broken == 0)
2816 {
2817 stream_skip(stream, buf_size-1+junk);
2818 continue;
2819 }
2820
2821 is_start = 0; //queued to the packet data
2822 }
2823
2824 if(is_start)
2825 tss->is_synced = 1;
2826
2827 if((!is_start && !tss->is_synced) || ((pid > 1) && (pid < 16)) || (pid == 8191)) //invalid pid
2828 {
2829 stream_skip(stream, buf_size-1+junk);
2830 continue;
2831 }
2832
2833
2834 afc = (packet[3] >> 4) & 3;
2835 if(! (afc % 2)) //no payload in this TS packet
2836 {
2837 stream_skip(stream, buf_size-1+junk);
2838 continue;
2839 }
2840
2841 if(afc > 1)
2842 {
2843 int c;
2844 c = stream_read_char(stream);
2845 buf_size--;
2846 if(c < 0 || c > 183) //broken from the stream layer or invalid
2847 {
2848 stream_skip(stream, buf_size-1+junk);
2849 continue;
2850 }
2851
2852 //c==0 is allowed!
2853 if(c > 0)
2854 {
2855 uint8_t pcrbuf[188];
2856 int flags = stream_read_char(stream);
2857 int has_pcr;
2858 rap_flag = (flags & 0x40) >> 6;
2859 has_pcr = flags & 0x10;
2860
2861 buf_size--;
2862 c--;
2863 stream_read(stream, pcrbuf, c);
2864
2865 if(has_pcr)
2866 {
2867 int pcr_pid = prog_pcr_pid(priv, priv->prog);
2868 if(pcr_pid == pid)
2869 {
2870 uint64_t pcr, pcr_ext;
2871
2872 pcr = (int64_t)(pcrbuf[0]) << 25;
2873 pcr |= pcrbuf[1] << 17 ;
2874 pcr |= (pcrbuf[2]) << 9;
2875 pcr |= pcrbuf[3] << 1 ;
2876 pcr |= (pcrbuf[4] & 0x80) >> 7;
2877
2878 pcr_ext = (pcrbuf[4] & 0x01) << 8;
2879 pcr_ext |= pcrbuf[5];
2880
2881 pcr = pcr * 300 + pcr_ext;
2882
2883 demuxer->reference_clock = (double)pcr/(double)27000000.0;
2884 }
2885 }
2886
2887 buf_size -= c;
2888 if(buf_size == 0)
2889 continue;
2890 }
2891 }
2892
2893 //find the program that the pid belongs to; if (it's the right one or -1) && pid_type==SL_SECTION
2894 //call parse_sl_section()
2895 pmt = pmt_of_pid(priv, pid, &mp4_dec);
2896 if(mp4_dec)
2897 {
2898 fill_extradata(mp4_dec, tss);
2899 if(IS_VIDEO(mp4_dec->object_type) || IS_AUDIO(mp4_dec->object_type))
2900 {
2901 tss->type = SL_PES_STREAM;
2902 tss->subtype = mp4_dec->object_type;
2903 }
2904 }
2905
2906
2907 //TABLE PARSING
2908
2909 base = priv->ts.packet_size - buf_size;
2910
2911 priv->last_pid = pid;
2912
2913 is_video = IS_VIDEO(tss->type) || (tss->type==SL_PES_STREAM && IS_VIDEO(tss->subtype));
2914 is_audio = IS_AUDIO(tss->type) || (tss->type==SL_PES_STREAM && IS_AUDIO(tss->subtype)) || (tss->type == PES_PRIVATE1);
2915 is_sub = IS_SUB(tss->type);
2916 pid_type = pid_type_from_pmt(priv, pid);
2917
2918 // PES CONTENT STARTS HERE
2919 if(! probe)
2920 {
2921 if((is_video || is_audio || is_sub) && is_start)
2922 ts_add_stream(demuxer, tss);
2923
2924 if(is_video && (demuxer->video->id == priv->ts.streams[pid].id))
2925 {
2926 ds = demuxer->video;
2927
2928 dp = &priv->fifo[1].pack;
2929 dp_offset = &priv->fifo[1].offset;
2930 buffer_size = &priv->fifo[1].buffer_size;
2931 si = &priv->vstr;
2932 }
2933 else if(is_audio && (demuxer->audio->id == priv->ts.streams[pid].id))
2934 {
2935 ds = demuxer->audio;
2936
2937 dp = &priv->fifo[0].pack;
2938 dp_offset = &priv->fifo[0].offset;
2939 buffer_size = &priv->fifo[0].buffer_size;
2940 si = &priv->astr;
2941 }
2942 else if(is_sub)
2943 {
2944 sh_sub_t *sh_sub = demuxer->sub->sh;
2945
2946 if(sh_sub && sh_sub->sid == tss->pid)
2947 {
2948 ds = demuxer->sub;
2949
2950 dp = &priv->fifo[2].pack;
2951 dp_offset = &priv->fifo[2].offset;
2952 buffer_size = &priv->fifo[2].buffer_size;
2953 }
2954 else
2955 {
2956 stream_skip(stream, buf_size+junk);
2957 continue;
2958 }
2959 }
2960
2961 //IS IT TIME TO QUEUE DATA to the dp_packet?
2962 if(is_start && (dp != NULL))
2963 {
2964 // subtitle packets _have_ to be submitted before video, otherwise
2965 // they might get stuck "forever" and subtitles will be completely
2966 // out of sync.
2967 if (is_video)
2968 fill_packet(demuxer, demuxer->sub, &priv->fifo[2].pack, &priv->fifo[2].offset, NULL);
2969 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
2970 }
2971
2972
2973 if(dp && *dp == NULL)
2974 {
2975 if(*buffer_size > MAX_PACK_BYTES)
2976 *buffer_size = MAX_PACK_BYTES;
2977 *dp = new_demux_packet(*buffer_size); //es->size
2978 *dp_offset = 0;
2979 if(! *dp)
2980 {
2981 fprintf(stderr, "fill_buffer, NEW_ADD_PACKET(%d)FAILED\n", *buffer_size);
2982 continue;
2983 }
2984 mp_msg(MSGT_DEMUX, MSGL_DBG2, "CREATED DP(%d)\n", *buffer_size);
2985 }
2986 }
2987
2988
2989 if(probe || !dp) //dp is NULL for tables and sections
2990 {
2991 p = &packet[base];
2992 }
2993 else //feeding
2994 {
2995 if(*dp_offset + buf_size > *buffer_size)
2996 {
2997 *buffer_size = *dp_offset + buf_size + TS_FEC_PACKET_SIZE;
2998 resize_demux_packet(*dp, *buffer_size);
2999 }
3000 p = &((*dp)->buffer[*dp_offset]);
3001 }
3002
3003 len = stream_read(stream, p, buf_size);
3004 if(len < buf_size)
3005 {
3006 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\r\nts_parse() couldn't read enough data: %d < %d\r\n", len, buf_size);
3007 continue;
3008 }
3009 stream_skip(stream, junk);
3010
3011 if(pid == 0)
3012 {
3013 parse_pat(priv, is_start, p, buf_size);
3014 continue;
3015 }
3016 else if((tss->type == SL_SECTION) && pmt)
3017 {
3018 int k, mp4_es_id = -1;
3019 ts_section_t *section;
3020 for(k = 0; k < pmt->mp4es_cnt; k++)
3021 {
3022 if(pmt->mp4es[k].decoder.object_type == MP4_OD && pmt->mp4es[k].decoder.stream_type == MP4_OD)
3023 mp4_es_id = pmt->mp4es[k].id;
3024 }
3025 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4ESID: %d\n", mp4_es_id);
3026 for(k = 0; k < pmt->es_cnt; k++)
3027 {
3028 if(pmt->es[k].mp4_es_id == mp4_es_id)
3029 {
3030 section = &(tss->section);
3031 parse_sl_section(pmt, section, is_start, &packet[base], buf_size);
3032 }
3033 }
3034 continue;
3035 }
3036 else
3037 {
3038 progid = prog_id_in_pat(priv, pid);
3039 if(progid != -1)
3040 {
3041 if(pid != demuxer->video->id && pid != demuxer->audio->id && pid != demuxer->sub->id)
3042 {
3043 parse_pmt(priv, progid, pid, is_start, &packet[base], buf_size);
3044 continue;
3045 }
3046 else
3047 mp_msg(MSGT_DEMUX, MSGL_ERR, "Argh! Data pid %d used in the PMT, Skipping PMT parsing!\n", pid);
3048 }
3049 }
3050
3051 if(!probe && !dp)
3052 continue;
3053
3054 if(is_start)
3055 {
3056 uint8_t *lang = NULL;
3057
3058 mp_msg(MSGT_DEMUX, MSGL_DBG2, "IS_START\n");
3059
3060 len = pes_parse2(p, buf_size, es, pid_type, pmt, pid);
3061 if(! len)
3062 {
3063 tss->is_synced = 0;
3064 continue;
3065 }
3066 es->pid = tss->pid;
3067 tss->is_synced |= es->is_synced || rap_flag;
3068 tss->payload_size = es->payload_size;
3069
3070 if((is_sub || is_audio) && (lang = pid_lang_from_pmt(priv, es->pid)))
3071 {
3072 memcpy(es->lang, lang, 3);
3073 es->lang[3] = 0;
3074 }
3075 else
3076 es->lang[0] = 0;
3077
3078 if(probe)
3079 {
3080 if(es->type == UNKNOWN)
3081 return 0;
3082
3083 tss->type = es->type;
3084 tss->subtype = es->subtype;
3085
3086 return 1;
3087 }
3088 else
3089 {
3090 if(es->pts == 0.0)
3091 es->pts = tss->pts = tss->last_pts;
3092 else
3093 tss->pts = tss->last_pts = es->pts;
3094
3095 mp_msg(MSGT_DEMUX, MSGL_DBG2, "ts_parse, NEW pid=%d, PSIZE: %u, type=%X, start=%p, len=%d\n",
3096 es->pid, es->payload_size, es->type, es->start, es->size);
3097
3098 demuxer->filepos = stream_tell(demuxer->stream) - es->size;
3099
3100 if(es->size < 0 || es->size > buf_size) {
3101 mp_msg(MSGT_DEMUX, MSGL_ERR, "Broken ES packet size\n");
3102 es->size = 0;
3103 }
3104 memmove(p, es->start, es->size);
3105 *dp_offset += es->size;
3106 (*dp)->flags = 0;
3107 (*dp)->pos = stream_tell(demuxer->stream);
3108 (*dp)->pts = es->pts;
3109
3110 if(retv > 0)
3111 return retv;
3112 else
3113 continue;
3114 }
3115 }
3116 else
3117 {
3118 uint16_t sz;
3119
3120 es->pid = tss->pid;
3121 es->type = tss->type;
3122 es->subtype = tss->subtype;
3123 es->pts = tss->pts = tss->last_pts;
3124 es->start = &packet[base];
3125
3126
3127 if(tss->payload_size > 0)
3128 {
3129 sz = FFMIN(tss->payload_size, buf_size);
3130 tss->payload_size -= sz;
3131 es->size = sz;
3132 }
3133 else
3134 {
3135 if(is_video)
3136 {
3137 sz = es->size = buf_size;
3138 }
3139 else
3140 {
3141 continue;
3142 }
3143 }
3144
3145
3146 if(! probe)
3147 {
3148 *dp_offset += sz;
3149
3150 if(*dp_offset >= MAX_PACK_BYTES)
3151 {
3152 (*dp)->pts = tss->last_pts;
3153 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
3154 return 1;
3155 }
3156
3157 continue;
3158 }
3159 else
3160 {
3161 memcpy(es->start, p, sz);
3162
3163 if(es->size)
3164 return es->size;
3165 else
3166 continue;
3167 }
3168 }
3169 }
3170
3171 return 0;
3172 }
3173
3174
3175 static void reset_fifos(demuxer_t *demuxer, int a, int v, int s)
3176 {
3177 ts_priv_t* priv = demuxer->priv;
3178 if(a)
3179 {
3180 if(priv->fifo[0].pack != NULL)
3181 {
3182 free_demux_packet(priv->fifo[0].pack);
3183 priv->fifo[0].pack = NULL;
3184 }
3185 priv->fifo[0].offset = 0;
3186 }
3187
3188 if(v)
3189 {
3190 if(priv->fifo[1].pack != NULL)
3191 {
3192 free_demux_packet(priv->fifo[1].pack);
3193 priv->fifo[1].pack = NULL;
3194 }
3195 priv->fifo[1].offset = 0;
3196 }
3197
3198 if(s)
3199 {
3200 if(priv->fifo[2].pack != NULL)
3201 {
3202 free_demux_packet(priv->fifo[2].pack);
3203 priv->fifo[2].pack = NULL;
3204 }
3205 priv->fifo[2].offset = 0;
3206 }
3207 demuxer->reference_clock = MP_NOPTS_VALUE;
3208 }
3209
3210
3211 static void demux_seek_ts(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
3212 {
3213 demux_stream_t *d_audio=demuxer->audio;
3214 demux_stream_t *d_video=demuxer->video;
3215 sh_audio_t *sh_audio=d_audio->sh;
3216 sh_video_t *sh_video=d_video->sh;
3217 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
3218 int i, video_stats;
3219 off_t newpos;
3220
3221 //================= seek in MPEG-TS ==========================
3222
3223 ts_dump_streams(demuxer->priv);
3224 reset_fifos(demuxer, sh_audio != NULL, sh_video != NULL, demuxer->sub->id > 0);
3225
3226 demux_flush(demuxer);
3227
3228
3229
3230 video_stats = (sh_video != NULL);
3231 if(video_stats)
3232 {
3233 mp_msg(MSGT_DEMUX, MSGL_V, "IBPS: %d, vb: %d\r\n", sh_video->i_bps, priv->vbitrate);
3234 if(priv->vbitrate)
3235 video_stats = priv->vbitrate;
3236 else
3237 video_stats = sh_video->i_bps;
3238 }
3239
3240 newpos = (flags & SEEK_ABSOLUTE) ? demuxer->movi_start : demuxer->filepos;
3241 if(flags & SEEK_FACTOR) // float seek 0..1
3242 newpos+=(demuxer->movi_end-demuxer->movi_start)*rel_seek_secs;
3243 else
3244 {
3245 // time seek (secs)
3246 if(! video_stats) // unspecified or VBR
3247 newpos += 2324*75*rel_seek_secs; // 174.3 kbyte/sec
3248 else
3249 newpos += video_stats*rel_seek_secs;
3250 }
3251
3252
3253 if(newpos < demuxer->movi_start)
3254 newpos = demuxer->movi_start; //begininng of stream
3255
3256 stream_seek(demuxer->stream, newpos);
3257 for(i = 0; i < 8192; i++)
3258 if(priv->ts.pids[i] != NULL)
3259 priv->ts.pids[i]->is_synced = 0;
3260
3261 videobuf_code_len = 0;
3262
3263 if(sh_video != NULL)
3264 ds_fill_buffer(d_video);
3265
3266 if(sh_audio != NULL)
3267 {
3268 ds_fill_buffer(d_audio);
3269 }
3270
3271 while(sh_video != NULL)
3272 {
3273 if(sh_audio && !d_audio->eof && d_video->pts && d_audio->pts)
3274 {
3275 double a_pts=d_audio->pts;
3276 a_pts+=(ds_tell_pts(d_audio)-sh_audio->a_in_buffer_len)/(double)sh_audio->i_bps;
3277 if(d_video->pts > a_pts)
3278 {
3279 skip_audio_frame(sh_audio); // sync audio
3280 continue;
3281 }
3282 }
3283
3284
3285 i = sync_video_packet(d_video);
3286 if((sh_video->format == VIDEO_MPEG1) || (sh_video->format == VIDEO_MPEG2))
3287 {
3288 if(i==0x1B3 || i==0x1B8) break; // found it!
3289 }
3290 else if((sh_video->format == VIDEO_MPEG4) && (i==0x1B6))
3291 break;
3292 else if(sh_video->format == VIDEO_VC1 && (i==0x10E || i==0x10F))
3293 break;
3294 else //H264
3295 {
3296 if((i & ~0x60) == 0x105 || (i & ~0x60) == 0x107) break;
3297 }
3298
3299 if(!i || !skip_video_packet(d_video)) break; // EOF?
3300 }
3301 }
3302
3303
3304 static int demux_ts_fill_buffer(demuxer_t * demuxer, demux_stream_t *ds)
3305 {
3306 ES_stream_t es;
3307 ts_priv_t *priv = (ts_priv_t *)demuxer->priv;
3308
3309 return -ts_parse(demuxer, &es, priv->packet, 0);
3310 }
3311
3312
3313 static int ts_check_file_dmx(demuxer_t *demuxer)
3314 {
3315 return ts_check_file(demuxer) ? DEMUXER_TYPE_MPEG_TS : 0;
3316 }
3317
3318 static int is_usable_program(ts_priv_t *priv, pmt_t *pmt)
3319 {
3320 int j;
3321
3322 for(j = 0; j < pmt->es_cnt; j++)
3323 {
3324 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3325 continue;
3326 if(
3327 priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO ||
3328 priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO
3329 )
3330 return 1;
3331 }
3332
3333 return 0;
3334 }
3335
3336 static int demux_ts_control(demuxer_t *demuxer, int cmd, void *arg)
3337 {
3338 ts_priv_t* priv = (ts_priv_t *)demuxer->priv;
3339
3340 switch(cmd)
3341 {
3342 case DEMUXER_CTRL_SWITCH_AUDIO:
3343 case DEMUXER_CTRL_SWITCH_VIDEO:
3344 {
3345 void *sh = NULL;
3346 int i, n;
3347 int reftype, areset = 0, vreset = 0;
3348 demux_stream_t *ds;
3349
3350 if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
3351 {
3352 reftype = TYPE_VIDEO;
3353 ds = demuxer->video;
3354 vreset = 1;
3355 }
3356 else
3357 {
3358 reftype = TYPE_AUDIO;
3359 ds = demuxer->audio;
3360 areset = 1;
3361 }
3362 n = *((int*)arg);
3363 if(n == -2)
3364 {
3365 reset_fifos(demuxer, areset, vreset, 0);
3366 ds->id = -2;
3367 ds->sh = NULL;
3368 ds_free_packs(ds);
3369 *((int*)arg) = ds->id;
3370 return DEMUXER_CTRL_OK;
3371 }
3372
3373 if(n < 0)
3374 {
3375 for(i = 0; i < 8192; i++)
3376 {
3377 if(priv->ts.streams[i].id == ds->id && priv->ts.streams[i].type == reftype)
3378 break;
3379 }
3380
3381 while(!sh)
3382 {
3383 i = (i+1) % 8192;
3384 if(priv->ts.streams[i].type == reftype)
3385 {
3386 if(priv->ts.streams[i].id == ds->id) //we made a complete loop
3387 break;
3388 sh = priv->ts.streams[i].sh;
3389 }
3390 }
3391 }
3392 else //audio track <n>
3393 {
3394 if (n >= 8192 || priv->ts.streams[n].type != reftype) return DEMUXER_CTRL_NOTIMPL;
3395 i = n;
3396 sh = priv->ts.streams[i].sh;
3397 }
3398
3399 if(sh)
3400 {
3401 if(ds->id != priv->ts.streams[i].id)
3402 reset_fifos(demuxer, areset, vreset, 0);
3403 ds->id = priv->ts.streams[i].id;
3404 ds->sh = sh;
3405 ds_free_packs(ds);
3406 mp_msg(MSGT_DEMUX, MSGL_V, "\r\ndemux_ts, switched to audio pid %d, id: %d, sh: %p\r\n", i, ds->id, sh);
3407 }
3408
3409 *((int*)arg) = ds->id;
3410 return DEMUXER_CTRL_OK;
3411 }
3412
3413 case DEMUXER_CTRL_IDENTIFY_PROGRAM: //returns in prog->{aid,vid} the new ids that comprise a program
3414 {
3415 int i, j, cnt=0;
3416 int vid_done=0, aid_done=0;
3417 pmt_t *pmt = NULL;
3418 demux_program_t *prog = arg;
3419
3420 if(priv->pmt_cnt < 2)
3421 return DEMUXER_CTRL_NOTIMPL;
3422
3423 if(prog->progid == -1)
3424 {
3425 int cur_pmt_idx = 0;
3426
3427 for(i = 0; i < priv->pmt_cnt; i++)
3428 if(priv->pmt[i].progid == priv->prog)
3429 {
3430 cur_pmt_idx = i;
3431 break;
3432 }
3433
3434 i = (cur_pmt_idx + 1) % priv->pmt_cnt;
3435 while(i != cur_pmt_idx)
3436 {
3437 pmt = &priv->pmt[i];
3438 cnt = is_usable_program(priv, pmt);
3439 if(cnt)
3440 break;
3441 i = (i + 1) % priv->pmt_cnt;
3442 }
3443 }
3444 else
3445 {
3446 for(i = 0; i < priv->pmt_cnt; i++)
3447 if(priv->pmt[i].progid == prog->progid)
3448 {
3449 pmt = &priv->pmt[i]; //required program
3450 cnt = is_usable_program(priv, pmt);
3451 }
3452 }
3453
3454 if(!cnt)
3455 return DEMUXER_CTRL_NOTIMPL;
3456
3457 //finally some food
3458 prog->aid = prog->vid = -2; //no audio and no video by default
3459 for(j = 0; j < pmt->es_cnt; j++)
3460 {
3461 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3462 continue;
3463
3464 if(!vid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO)
3465 {
3466 vid_done = 1;
3467 prog->vid = pmt->es[j].pid;
3468 }
3469 else if(!aid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO)
3470 {
3471 aid_done = 1;
3472 prog->aid = pmt->es[j].pid;
3473 }
3474 }
3475
3476 priv->prog = prog->progid = pmt->progid;
3477 return DEMUXER_CTRL_OK;
3478 }
3479
3480 default:
3481 return DEMUXER_CTRL_NOTIMPL;
3482 }
3483 }
3484
3485
3486 const demuxer_desc_t demuxer_desc_mpeg_ts = {
3487 "MPEG-TS demuxer",
3488 "mpegts",
3489 "TS",
3490 "Nico Sabbi",
3491 "",
3492 DEMUXER_TYPE_MPEG_TS,
3493 0, // unsafe autodetect
3494 ts_check_file_dmx,
3495 demux_ts_fill_buffer,
3496 demux_open_ts,
3497 demux_close_ts,
3498 demux_seek_ts,
3499 demux_ts_control
3500 };
mplayer with SMedia Glamo drivers