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Fix 'cast from pointer to integer of different size' on 64bit architectures. Casting...
[mplayer/greg.git] / libmpdemux / demux_ts.c
blobd6202a223fd0129e225bbf7f8060d24e9e255267
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 free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This file is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27
28 #include "config.h"
29 #include "mp_msg.h"
30 #include "help_mp.h"
31
32 #include "stream/stream.h"
33 #include "demuxer.h"
34 #include "parse_es.h"
35 #include "stheader.h"
36
37 #include "ms_hdr.h"
38 #include "mpeg_hdr.h"
39
40 #define TS_PH_PACKET_SIZE 192
41 #define TS_FEC_PACKET_SIZE 204
42 #define TS_PACKET_SIZE 188
43 #define NB_PID_MAX 8192
44
45 #define MAX_HEADER_SIZE 6 /* enough for PES header + length */
46 #define MAX_CHECK_SIZE 65535
47 #define TS_MAX_PROBE_SIZE 2000000 /* do not forget to change this in cfg-common-opts.h, too */
48 #define NUM_CONSECUTIVE_TS_PACKETS 32
49 #define NUM_CONSECUTIVE_AUDIO_PACKETS 348
50 #define MAX_A52_FRAME_SIZE 3840
51
52 #ifndef SIZE_MAX
53 #define SIZE_MAX ((size_t)-1)
54 #endif
55
56 #define TYPE_AUDIO 1
57 #define TYPE_VIDEO 2
58
59 int ts_prog;
60 int ts_keep_broken=0;
61 off_t ts_probe = 0;
62 extern char *dvdsub_lang, *audio_lang; //for -alang
63
64 typedef enum
65 {
66 UNKNOWN = -1,
67 VIDEO_MPEG1 = 0x10000001,
68 VIDEO_MPEG2 = 0x10000002,
69 VIDEO_MPEG4 = 0x10000004,
70 VIDEO_H264 = 0x10000005,
71 VIDEO_AVC = mmioFOURCC('a', 'v', 'c', '1'),
72 VIDEO_VC1 = mmioFOURCC('W', 'V', 'C', '1'),
73 AUDIO_MP2 = 0x50,
74 AUDIO_A52 = 0x2000,
75 AUDIO_DTS = 0x2001,
76 AUDIO_LPCM_BE = 0x10001,
77 AUDIO_AAC = mmioFOURCC('M', 'P', '4', 'A'),
78 SPU_DVD = 0x3000000,
79 SPU_DVB = 0x3000001,
80 PES_PRIVATE1 = 0xBD00000,
81 SL_PES_STREAM = 0xD000000,
82 SL_SECTION = 0xD100000,
83 MP4_OD = 0xD200000,
84 } es_stream_type_t;
85
86 typedef struct {
87 uint8_t *buffer;
88 uint16_t buffer_len;
89 } ts_section_t;
90
91 typedef struct {
92 int size;
93 unsigned char *start;
94 uint16_t payload_size;
95 es_stream_type_t type, subtype;
96 float pts, last_pts;
97 int pid;
98 char lang[4];
99 int last_cc; // last cc code (-1 if first packet)
100 int is_synced;
101 ts_section_t section;
102 uint8_t *extradata;
103 int extradata_alloc, extradata_len;
104 struct {
105 uint8_t au_start, au_end, last_au_end;
106 } sl;
107 } ES_stream_t;
108
109 typedef struct {
110 void *sh;
111 int id;
112 int type;
113 } sh_av_t;
114
115 typedef struct MpegTSContext {
116 int packet_size; // raw packet size, including FEC if present e.g. 188 bytes
117 ES_stream_t *pids[NB_PID_MAX];
118 sh_av_t streams[NB_PID_MAX];
119 } MpegTSContext;
120
121
122 typedef struct {
123 demux_stream_t *ds;
124 demux_packet_t *pack;
125 int offset, buffer_size;
126 } av_fifo_t;
127
128 #define MAX_EXTRADATA_SIZE 64*1024
129 typedef struct {
130 int32_t object_type; //aka codec used
131 int32_t stream_type; //video, audio etc.
132 uint8_t buf[MAX_EXTRADATA_SIZE];
133 uint16_t buf_size;
134 uint8_t szm1;
135 } mp4_decoder_config_t;
136
137 typedef struct {
138 //flags
139 uint8_t flags;
140 uint8_t au_start;
141 uint8_t au_end;
142 uint8_t random_accesspoint;
143 uint8_t random_accesspoint_only;
144 uint8_t padding;
145 uint8_t use_ts;
146 uint8_t idle;
147 uint8_t duration;
148
149 uint32_t ts_resolution, ocr_resolution;
150 uint8_t ts_len, ocr_len, au_len, instant_bitrate_len, degr_len, au_seqnum_len, packet_seqnum_len;
151 uint32_t timescale;
152 uint16_t au_duration, cts_duration;
153 uint64_t ocr, dts, cts;
154 } mp4_sl_config_t;
155
156 typedef struct {
157 uint16_t id;
158 uint8_t flags;
159 mp4_decoder_config_t decoder;
160 mp4_sl_config_t sl;
161 } mp4_es_descr_t;
162
163 typedef struct {
164 uint16_t id;
165 uint8_t flags;
166 mp4_es_descr_t *es;
167 uint16_t es_cnt;
168 } mp4_od_t;
169
170 typedef struct {
171 uint8_t skip;
172 uint8_t table_id;
173 uint8_t ssi;
174 uint16_t section_length;
175 uint16_t ts_id;
176 uint8_t version_number;
177 uint8_t curr_next;
178 uint8_t section_number;
179 uint8_t last_section_number;
180 struct pat_progs_t {
181 uint16_t id;
182 uint16_t pmt_pid;
183 } *progs;
184 uint16_t progs_cnt;
185 ts_section_t section;
186 } pat_t;
187
188 typedef struct {
189 uint16_t progid;
190 uint8_t skip;
191 uint8_t table_id;
192 uint8_t ssi;
193 uint16_t section_length;
194 uint8_t version_number;
195 uint8_t curr_next;
196 uint8_t section_number;
197 uint8_t last_section_number;
198 uint16_t PCR_PID;
199 uint16_t prog_descr_length;
200 ts_section_t section;
201 uint16_t es_cnt;
202 struct pmt_es_t {
203 uint16_t pid;
204 uint32_t type; //it's 8 bit long, but cast to the right type as FOURCC
205 uint16_t descr_length;
206 uint8_t format_descriptor[5];
207 uint8_t lang[4];
208 uint16_t mp4_es_id;
209 } *es;
210 mp4_od_t iod, *od;
211 mp4_es_descr_t *mp4es;
212 int od_cnt, mp4es_cnt;
213 } pmt_t;
214
215 typedef struct {
216 uint64_t size;
217 float duration;
218 float first_pts;
219 float last_pts;
220 } TS_stream_info;
221
222 typedef struct {
223 MpegTSContext ts;
224 int last_pid;
225 av_fifo_t fifo[3]; //0 for audio, 1 for video, 2 for subs
226 pat_t pat;
227 pmt_t *pmt;
228 uint16_t pmt_cnt;
229 uint32_t prog;
230 uint32_t vbitrate;
231 int keep_broken;
232 int last_aid;
233 int last_vid;
234 char packet[TS_FEC_PACKET_SIZE];
235 TS_stream_info vstr, astr;
236 } ts_priv_t;
237
238
239 typedef struct {
240 es_stream_type_t type;
241 ts_section_t section;
242 } TS_pids_t;
243
244
245 #define IS_AUDIO(x) (((x) == AUDIO_MP2) || ((x) == AUDIO_A52) || ((x) == AUDIO_LPCM_BE) || ((x) == AUDIO_AAC) || ((x) == AUDIO_DTS))
246 #define IS_VIDEO(x) (((x) == VIDEO_MPEG1) || ((x) == VIDEO_MPEG2) || ((x) == VIDEO_MPEG4) || ((x) == VIDEO_H264) || ((x) == VIDEO_AVC) || ((x) == VIDEO_VC1))
247
248 static int ts_parse(demuxer_t *demuxer, ES_stream_t *es, unsigned char *packet, int probe);
249
250 static uint8_t get_packet_size(const unsigned char *buf, int size)
251 {
252 int i;
253
254 if (size < (TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS))
255 return 0;
256
257 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
258 {
259 if (buf[i * TS_PACKET_SIZE] != 0x47)
260 {
261 mp_msg(MSGT_DEMUX, MSGL_DBG2, "GET_PACKET_SIZE, pos %d, char: %2x\n", i, buf[i * TS_PACKET_SIZE]);
262 goto try_fec;
263 }
264 }
265 return TS_PACKET_SIZE;
266
267 try_fec:
268 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
269 {
270 if (buf[i * TS_FEC_PACKET_SIZE] != 0x47){
271 mp_msg(MSGT_DEMUX, MSGL_DBG2, "GET_PACKET_SIZE, pos %d, char: %2x\n", i, buf[i * TS_PACKET_SIZE]);
272 goto try_philips;
273 }
274 }
275 return TS_FEC_PACKET_SIZE;
276
277 try_philips:
278 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
279 {
280 if (buf[i * TS_PH_PACKET_SIZE] != 0x47)
281 return 0;
282 }
283 return TS_PH_PACKET_SIZE;
284 }
285
286 static int parse_avc_sps(uint8_t *buf, int len, int *w, int *h);
287
288 static void ts_add_stream(demuxer_t * demuxer, ES_stream_t *es)
289 {
290 int i;
291 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
292
293 if(priv->ts.streams[es->pid].sh)
294 return;
295
296 if((IS_AUDIO(es->type) || IS_AUDIO(es->subtype)) && priv->last_aid+1 < MAX_A_STREAMS)
297 {
298 sh_audio_t *sh = new_sh_audio_aid(demuxer, priv->last_aid, es->pid);
299 if(sh)
300 {
301 sh->format = IS_AUDIO(es->type) ? es->type : es->subtype;
302 sh->ds = demuxer->audio;
303
304 priv->ts.streams[es->pid].id = priv->last_aid;
305 priv->ts.streams[es->pid].sh = sh;
306 priv->ts.streams[es->pid].type = TYPE_AUDIO;
307 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);
308 priv->last_aid++;
309 }
310
311 if(es->extradata && es->extradata_len)
312 {
313 sh->wf = (WAVEFORMATEX *) malloc(sizeof (WAVEFORMATEX) + es->extradata_len);
314 sh->wf->cbSize = es->extradata_len;
315 memcpy(sh->wf + 1, es->extradata, es->extradata_len);
316 }
317 }
318
319 if((IS_VIDEO(es->type) || IS_VIDEO(es->subtype)) && priv->last_vid+1 < MAX_V_STREAMS)
320 {
321 sh_video_t *sh = new_sh_video_vid(demuxer, priv->last_vid, es->pid);
322 if(sh)
323 {
324 sh->format = IS_VIDEO(es->type) ? es->type : es->subtype;;
325 sh->ds = demuxer->video;
326
327 priv->ts.streams[es->pid].id = priv->last_vid;
328 priv->ts.streams[es->pid].sh = sh;
329 priv->ts.streams[es->pid].type = TYPE_VIDEO;
330 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);
331 priv->last_vid++;
332
333
334 if(sh->format == VIDEO_AVC && es->extradata && es->extradata_len)
335 {
336 int w = 0, h = 0;
337 sh->bih = (BITMAPINFOHEADER *) calloc(1, sizeof(BITMAPINFOHEADER) + es->extradata_len);
338 sh->bih->biSize= sizeof(BITMAPINFOHEADER) + es->extradata_len;
339 sh->bih->biCompression = sh->format;
340 memcpy(sh->bih + 1, es->extradata, es->extradata_len);
341 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "EXTRADATA(%d BYTES): \n", es->extradata_len);
342 for(i = 0;i < es->extradata_len; i++)
343 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "%02x ", (int) es->extradata[i]);
344 mp_msg(MSGT_DEMUXER,MSGL_DBG2,"\n");
345 if(parse_avc_sps(es->extradata, es->extradata_len, &w, &h))
346 {
347 sh->bih->biWidth = w;
348 sh->bih->biHeight = h;
349 }
350 }
351 }
352 }
353 }
354
355 static int ts_check_file(demuxer_t * demuxer)
356 {
357 const int buf_size = (TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS);
358 unsigned char buf[TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS], done = 0, *ptr;
359 uint32_t _read, i, count = 0, is_ts;
360 int cc[NB_PID_MAX], last_cc[NB_PID_MAX], pid, cc_ok, c, good, bad;
361 uint8_t size = 0;
362 off_t pos = 0;
363 off_t init_pos;
364
365 mp_msg(MSGT_DEMUX, MSGL_V, "Checking for MPEG-TS...\n");
366
367 init_pos = stream_tell(demuxer->stream);
368 is_ts = 0;
369 while(! done)
370 {
371 i = 1;
372 c = 0;
373
374 while(((c=stream_read_char(demuxer->stream)) != 0x47)
375 && (c >= 0)
376 && (i < MAX_CHECK_SIZE)
377 && ! demuxer->stream->eof
378 ) i++;
379
380
381 if(c != 0x47)
382 {
383 mp_msg(MSGT_DEMUX, MSGL_V, "THIS DOESN'T LOOK LIKE AN MPEG-TS FILE!\n");
384 is_ts = 0;
385 done = 1;
386 continue;
387 }
388
389 pos = stream_tell(demuxer->stream) - 1;
390 buf[0] = c;
391 _read = stream_read(demuxer->stream, &buf[1], buf_size-1);
392
393 if(_read < buf_size-1)
394 {
395 mp_msg(MSGT_DEMUX, MSGL_V, "COULDN'T READ ENOUGH DATA, EXITING TS_CHECK\n");
396 stream_reset(demuxer->stream);
397 return 0;
398 }
399
400 size = get_packet_size(buf, buf_size);
401 if(size)
402 {
403 done = 1;
404 is_ts = 1;
405 }
406
407 if(pos - init_pos >= MAX_CHECK_SIZE)
408 {
409 done = 1;
410 is_ts = 0;
411 }
412 }
413
414 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);
415 stream_seek(demuxer->stream, pos);
416
417 if(! is_ts)
418 return 0;
419
420 //LET'S CHECK continuity counters
421 good = bad = 0;
422 for(count = 0; count < NB_PID_MAX; count++)
423 {
424 cc[count] = last_cc[count] = -1;
425 }
426
427 for(count = 0; count < NUM_CONSECUTIVE_TS_PACKETS; count++)
428 {
429 ptr = &(buf[size * count]);
430 pid = ((ptr[1] & 0x1f) << 8) | ptr[2];
431 mp_msg(MSGT_DEMUX, MSGL_DBG2, "BUF: %02x %02x %02x %02x, PID %d, SIZE: %d \n",
432 ptr[0], ptr[1], ptr[2], ptr[3], pid, size);
433
434 if((pid == 8191) || (pid < 16))
435 continue;
436
437 cc[pid] = (ptr[3] & 0xf);
438 cc_ok = (last_cc[pid] < 0) || ((((last_cc[pid] + 1) & 0x0f) == cc[pid]));
439 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PID %d, COMPARE CC %d AND LAST_CC %d\n", pid, cc[pid], last_cc[pid]);
440 if(! cc_ok)
441 //return 0;
442 bad++;
443 else
444 good++;
445
446 last_cc[pid] = cc[pid];
447 }
448
449 mp_msg(MSGT_DEMUX, MSGL_V, "GOOD CC: %d, BAD CC: %d\n", good, bad);
450
451 if(good >= bad)
452 return size;
453 else
454 return 0;
455 }
456
457
458 static inline int32_t progid_idx_in_pmt(ts_priv_t *priv, uint16_t progid)
459 {
460 int x;
461
462 if(priv->pmt == NULL)
463 return -1;
464
465 for(x = 0; x < priv->pmt_cnt; x++)
466 {
467 if(priv->pmt[x].progid == progid)
468 return x;
469 }
470
471 return -1;
472 }
473
474
475 static inline int32_t progid_for_pid(ts_priv_t *priv, int pid, int32_t req) //finds the first program listing a pid
476 {
477 int i, j;
478 pmt_t *pmt;
479
480
481 if(priv->pmt == NULL)
482 return -1;
483
484
485 for(i=0; i < priv->pmt_cnt; i++)
486 {
487 pmt = &(priv->pmt[i]);
488
489 if(pmt->es == NULL)
490 return -1;
491
492 for(j = 0; j < pmt->es_cnt; j++)
493 {
494 if(pmt->es[j].pid == pid)
495 {
496 if((req == 0) || (req == pmt->progid))
497 return pmt->progid;
498 }
499 }
500
501 }
502 return -1;
503 }
504
505 static inline int32_t prog_pcr_pid(ts_priv_t *priv, int progid)
506 {
507 int i;
508
509 if(priv->pmt == NULL)
510 return -1;
511 for(i=0; i < priv->pmt_cnt; i++)
512 {
513 if(priv->pmt[i].progid == progid)
514 return priv->pmt[i].PCR_PID;
515 }
516 return -1;
517 }
518
519
520 static inline int pid_match_lang(ts_priv_t *priv, uint16_t pid, char *lang)
521 {
522 uint16_t i, j;
523 pmt_t *pmt;
524
525 if(priv->pmt == NULL)
526 return -1;
527
528 for(i=0; i < priv->pmt_cnt; i++)
529 {
530 pmt = &(priv->pmt[i]);
531
532 if(pmt->es == NULL)
533 return -1;
534
535 for(j = 0; j < pmt->es_cnt; j++)
536 {
537 if(pmt->es[j].pid != pid)
538 continue;
539
540 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);
541 if(strncmp(pmt->es[j].lang, lang, 3) == 0)
542 {
543 return 1;
544 }
545 }
546
547 }
548
549 return -1;
550 }
551
552 typedef struct {
553 int32_t atype, vtype, stype; //types
554 int32_t apid, vpid, spid; //stream ids
555 char slang[4], alang[4]; //languages
556 uint16_t prog;
557 off_t probe;
558 } tsdemux_init_t;
559
560 //stripped down version of a52_syncinfo() from liba52
561 //copyright belongs to Michel Lespinasse <walken@zoy.org> and Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
562 int mp_a52_framesize(uint8_t * buf, int *srate)
563 {
564 int rate[] = { 32, 40, 48, 56, 64, 80, 96, 112,
565 128, 160, 192, 224, 256, 320, 384, 448,
566 512, 576, 640
567 };
568 uint8_t halfrate[12] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3};
569 int frmsizecod, bitrate, half;
570
571 if((buf[0] != 0x0b) || (buf[1] != 0x77)) /* syncword */
572 return 0;
573
574 if(buf[5] >= 0x60) /* bsid >= 12 */
575 return 0;
576
577 half = halfrate[buf[5] >> 3];
578
579 frmsizecod = buf[4] & 63;
580 if(frmsizecod >= 38)
581 return 0;
582
583 bitrate = rate[frmsizecod >> 1];
584
585 switch(buf[4] & 0xc0)
586 {
587 case 0: /* 48 KHz */
588 *srate = 48000 >> half;
589 return 4 * bitrate;
590 case 0x40: /* 44.1 KHz */
591 *srate = 44100 >> half;
592 return 2 * (320 * bitrate / 147 + (frmsizecod & 1));
593 case 0x80: /* 32 KHz */
594 *srate = 32000 >> half;
595 return 6 * bitrate;
596 }
597
598 return 0;
599 }
600
601 //second stage: returns the count of A52 syncwords found
602 static int a52_check(char *buf, int len)
603 {
604 int cnt, frame_length, ok, srate;
605
606 cnt = ok = 0;
607 if(len < 8)
608 return 0;
609
610 while(cnt < len - 7)
611 {
612 if(buf[cnt] == 0x0B && buf[cnt+1] == 0x77)
613 {
614 frame_length = mp_a52_framesize(&buf[cnt], &srate);
615 if(frame_length>=7 && frame_length<=3840)
616 {
617 cnt += frame_length;
618 ok++;
619 }
620 else
621 cnt++;
622 }
623 else
624 cnt++;
625 }
626
627 mp_msg(MSGT_DEMUXER, MSGL_V, "A52_CHECK(%d input bytes), found %d frame syncwords of %d bytes length\n", len, ok, frame_length);
628 return ok;
629 }
630
631
632 static off_t ts_detect_streams(demuxer_t *demuxer, tsdemux_init_t *param)
633 {
634 int video_found = 0, audio_found = 0, sub_found = 0, i, num_packets = 0, req_apid, req_vpid, req_spid;
635 int is_audio, is_video, is_sub, has_tables;
636 int32_t p, chosen_pid = 0;
637 off_t pos=0, ret = 0, init_pos, end_pos;
638 ES_stream_t es;
639 unsigned char tmp[TS_FEC_PACKET_SIZE];
640 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
641 struct {
642 char *buf;
643 int pos;
644 } pes_priv1[8192], *pptr;
645 char *tmpbuf;
646
647 priv->last_pid = 8192; //invalid pid
648
649 req_apid = param->apid;
650 req_vpid = param->vpid;
651 req_spid = param->spid;
652
653 has_tables = 0;
654 memset(pes_priv1, 0, sizeof(pes_priv1));
655 init_pos = stream_tell(demuxer->stream);
656 mp_msg(MSGT_DEMUXER, MSGL_V, "PROBING UP TO %"PRIu64", PROG: %d\n", (uint64_t) param->probe, param->prog);
657 end_pos = init_pos + (param->probe ? param->probe : TS_MAX_PROBE_SIZE);
658 while(1)
659 {
660 pos = stream_tell(demuxer->stream);
661 if(pos > end_pos || demuxer->stream->eof)
662 break;
663
664 if(ts_parse(demuxer, &es, tmp, 1))
665 {
666 //Non PES-aligned A52 audio may escape detection if PMT is not present;
667 //in this case we try to find at least 3 A52 syncwords
668 if((es.type == PES_PRIVATE1) && (! audio_found) && req_apid > -2)
669 {
670 pptr = &pes_priv1[es.pid];
671 if(pptr->pos < 64*1024)
672 {
673 tmpbuf = (char*) realloc(pptr->buf, pptr->pos + es.size);
674 if(tmpbuf != NULL)
675 {
676 pptr->buf = tmpbuf;
677 memcpy(&(pptr->buf[ pptr->pos ]), es.start, es.size);
678 pptr->pos += es.size;
679 if(a52_check(pptr->buf, pptr->pos) > 2)
680 {
681 param->atype = AUDIO_A52;
682 param->apid = es.pid;
683 es.type = AUDIO_A52;
684 }
685 }
686 }
687 }
688
689 is_audio = IS_AUDIO(es.type) || ((es.type==SL_PES_STREAM) && IS_AUDIO(es.subtype));
690 is_video = IS_VIDEO(es.type) || ((es.type==SL_PES_STREAM) && IS_VIDEO(es.subtype));
691 is_sub = ((es.type == SPU_DVD) || (es.type == SPU_DVB));
692
693
694 if((! is_audio) && (! is_video) && (! is_sub))
695 continue;
696 if(is_audio && req_apid==-2)
697 continue;
698
699 if(is_video)
700 {
701 mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_VIDEO_ID=%d\n", es.pid);
702 chosen_pid = (req_vpid == es.pid);
703 if((! chosen_pid) && (req_vpid > 0))
704 continue;
705 }
706 else if(is_audio)
707 {
708 mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_AUDIO_ID=%d\n", es.pid);
709 if (es.lang[0] > 0)
710 mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_AID_%d_LANG=%s\n", es.pid, es.lang);
711 if(req_apid > 0)
712 {
713 chosen_pid = (req_apid == es.pid);
714 if(! chosen_pid)
715 continue;
716 }
717 else if(param->alang[0] > 0 && es.lang[0] > 0)
718 {
719 if(pid_match_lang(priv, es.pid, param->alang) == -1)
720 continue;
721
722 chosen_pid = 1;
723 param->apid = req_apid = es.pid;
724 }
725 }
726 else if(is_sub)
727 {
728 mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_SUBTITLE_ID=%d\n", es.pid);
729 if (es.lang[0] > 0)
730 mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_SID_%d_LANG=%s\n", es.pid, es.lang);
731 chosen_pid = (req_spid == es.pid);
732 if((! chosen_pid) && (req_spid > 0))
733 continue;
734 }
735
736 if(req_apid < 0 && (param->alang[0] == 0) && req_vpid < 0 && req_spid < 0)
737 chosen_pid = 1;
738
739 if((ret == 0) && chosen_pid)
740 {
741 ret = stream_tell(demuxer->stream);
742 }
743
744 p = progid_for_pid(priv, es.pid, param->prog);
745 if(p != -1)
746 {
747 has_tables++;
748 if(!param->prog && chosen_pid)
749 param->prog = p;
750 }
751
752 if((param->prog > 0) && (param->prog != p))
753 {
754 if(audio_found)
755 {
756 if(is_video && (req_vpid == es.pid))
757 {
758 param->vtype = IS_VIDEO(es.type) ? es.type : es.subtype;
759 param->vpid = es.pid;
760 video_found = 1;
761 break;
762 }
763 }
764
765 if(video_found)
766 {
767 if(is_audio && (req_apid == es.pid))
768 {
769 param->atype = IS_AUDIO(es.type) ? es.type : es.subtype;
770 param->apid = es.pid;
771 audio_found = 1;
772 break;
773 }
774 }
775
776
777 continue;
778 }
779
780
781 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "TYPE: %x, PID: %d, PROG FOUND: %d\n", es.type, es.pid, param->prog);
782
783
784 if(is_video)
785 {
786 if((req_vpid == -1) || (req_vpid == es.pid))
787 {
788 param->vtype = IS_VIDEO(es.type) ? es.type : es.subtype;
789 param->vpid = es.pid;
790 video_found = 1;
791 }
792 }
793
794
795 if(((req_vpid == -2) || (num_packets >= NUM_CONSECUTIVE_AUDIO_PACKETS)) && audio_found && !param->probe)
796 {
797 //novideo or we have at least 348 audio packets (64 KB) without video (TS with audio only)
798 param->vtype = 0;
799 break;
800 }
801
802 if(is_sub)
803 {
804 if((req_spid == -1) || (req_spid == es.pid))
805 {
806 param->stype = es.type;
807 param->spid = es.pid;
808 sub_found = 1;
809 }
810 }
811
812 if(is_audio)
813 {
814 if((req_apid == -1) || (req_apid == es.pid))
815 {
816 param->atype = IS_AUDIO(es.type) ? es.type : es.subtype;
817 param->apid = es.pid;
818 audio_found = 1;
819 }
820 }
821
822 if(audio_found && (param->apid == es.pid) && (! video_found))
823 num_packets++;
824
825 if((has_tables==0) && (video_found && audio_found) && (pos >= 1000000))
826 break;
827 }
828 }
829
830 for(i=0; i<8192; i++)
831 {
832 if(pes_priv1[i].buf != NULL)
833 {
834 free(pes_priv1[i].buf);
835 pes_priv1[i].buf = NULL;
836 pes_priv1[i].pos = 0;
837 }
838 }
839
840 if(video_found)
841 {
842 if(param->vtype == VIDEO_MPEG1)
843 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG1(pid=%d) ", param->vpid);
844 else if(param->vtype == VIDEO_MPEG2)
845 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG2(pid=%d) ", param->vpid);
846 else if(param->vtype == VIDEO_MPEG4)
847 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG4(pid=%d) ", param->vpid);
848 else if(param->vtype == VIDEO_H264)
849 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO H264(pid=%d) ", param->vpid);
850 else if(param->vtype == VIDEO_VC1)
851 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO VC1(pid=%d) ", param->vpid);
852 else if(param->vtype == VIDEO_AVC)
853 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO AVC(NAL-H264, pid=%d) ", param->vpid);
854 }
855 else
856 {
857 param->vtype = UNKNOWN;
858 //WE DIDN'T MATCH ANY VIDEO STREAM
859 mp_msg(MSGT_DEMUXER, MSGL_INFO, "NO VIDEO! ");
860 }
861
862 if(param->atype == AUDIO_MP2)
863 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO MPA(pid=%d)", param->apid);
864 else if(param->atype == AUDIO_A52)
865 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO A52(pid=%d)", param->apid);
866 else if(param->atype == AUDIO_DTS)
867 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO DTS(pid=%d)", param->apid);
868 else if(param->atype == AUDIO_LPCM_BE)
869 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO LPCM(pid=%d)", param->apid);
870 else if(param->atype == AUDIO_AAC)
871 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO AAC(pid=%d)", param->apid);
872 else
873 {
874 audio_found = 0;
875 param->atype = UNKNOWN;
876 //WE DIDN'T MATCH ANY AUDIO STREAM, SO WE FORCE THE DEMUXER TO IGNORE AUDIO
877 mp_msg(MSGT_DEMUXER, MSGL_INFO, "NO AUDIO! ");
878 }
879
880 if(param->stype == SPU_DVD || param->stype == SPU_DVB)
881 mp_msg(MSGT_DEMUXER, MSGL_INFO, " SUB %s(pid=%d) ", (param->stype==SPU_DVD ? "DVD" : "DVB"), param->spid);
882 else
883 {
884 param->stype = UNKNOWN;
885 mp_msg(MSGT_DEMUXER, MSGL_INFO, " NO SUBS (yet)! ");
886 }
887
888 if(video_found || audio_found)
889 {
890 if(!param->prog)
891 {
892 p = progid_for_pid(priv, video_found ? param->vpid : param->apid, 0);
893 if(p != -1)
894 param->prog = p;
895 }
896
897 if(demuxer->stream->eof && (ret == 0))
898 ret = init_pos;
899 mp_msg(MSGT_DEMUXER, MSGL_INFO, " PROGRAM N. %d\n", param->prog);
900 }
901 else
902 mp_msg(MSGT_DEMUXER, MSGL_INFO, "\n");
903
904
905 for(i=0; i<8192; i++)
906 {
907 if(priv->ts.pids[i] != NULL)
908 {
909 priv->ts.pids[i]->payload_size = 0;
910 priv->ts.pids[i]->pts = priv->ts.pids[i]->last_pts = 0;
911 priv->ts.pids[i]->last_cc = -1;
912 priv->ts.pids[i]->is_synced = 0;
913 }
914 }
915
916 return ret;
917 }
918
919 static int parse_avc_sps(uint8_t *buf, int len, int *w, int *h)
920 {
921 int sps, sps_len;
922 unsigned char *ptr;
923 mp_mpeg_header_t picture;
924 if(len < 6)
925 return 0;
926 sps = buf[5] & 0x1f;
927 if(!sps)
928 return 0;
929 sps_len = (buf[6] << 8) | buf[7];
930 if(!sps_len || (sps_len > len - 8))
931 return 0;
932 ptr = &(buf[8]);
933 picture.display_picture_width = picture.display_picture_height = 0;
934 h264_parse_sps(&picture, ptr, len - 8);
935 if(!picture.display_picture_width || !picture.display_picture_height)
936 return 0;
937 *w = picture.display_picture_width;
938 *h = picture.display_picture_height;
939 return 1;
940 }
941
942 static demuxer_t *demux_open_ts(demuxer_t * demuxer)
943 {
944 int i;
945 uint8_t packet_size;
946 sh_video_t *sh_video;
947 sh_audio_t *sh_audio;
948 off_t start_pos;
949 tsdemux_init_t params;
950 ts_priv_t * priv = demuxer->priv;
951
952 mp_msg(MSGT_DEMUX, MSGL_V, "DEMUX OPEN, AUDIO_ID: %d, VIDEO_ID: %d, SUBTITLE_ID: %d,\n",
953 demuxer->audio->id, demuxer->video->id, demuxer->sub->id);
954
955
956 demuxer->type= DEMUXER_TYPE_MPEG_TS;
957
958
959 stream_reset(demuxer->stream);
960
961 packet_size = ts_check_file(demuxer);
962 if(!packet_size)
963 return NULL;
964
965 priv = calloc(1, sizeof(ts_priv_t));
966 if(priv == NULL)
967 {
968 mp_msg(MSGT_DEMUX, MSGL_FATAL, "DEMUX_OPEN_TS, couldn't allocate enough memory for ts->priv, exit\n");
969 return NULL;
970 }
971
972 for(i=0; i < 8192; i++)
973 {
974 priv->ts.pids[i] = NULL;
975 priv->ts.streams[i].id = -3;
976 }
977 priv->pat.progs = NULL;
978 priv->pat.progs_cnt = 0;
979 priv->pat.section.buffer = NULL;
980 priv->pat.section.buffer_len = 0;
981
982 priv->pmt = NULL;
983 priv->pmt_cnt = 0;
984
985 priv->keep_broken = ts_keep_broken;
986 priv->ts.packet_size = packet_size;
987
988
989 demuxer->priv = priv;
990 if(demuxer->stream->type != STREAMTYPE_FILE)
991 demuxer->seekable = 1;
992 else
993 demuxer->seekable = 1;
994
995
996 params.atype = params.vtype = params.stype = UNKNOWN;
997 params.apid = demuxer->audio->id;
998 params.vpid = demuxer->video->id;
999 params.spid = demuxer->sub->id;
1000 params.prog = ts_prog;
1001 params.probe = ts_probe;
1002
1003 if(dvdsub_lang != NULL)
1004 {
1005 strncpy(params.slang, dvdsub_lang, 3);
1006 params.slang[3] = 0;
1007 }
1008 else
1009 memset(params.slang, 0, 4);
1010
1011 if(audio_lang != NULL)
1012 {
1013 strncpy(params.alang, audio_lang, 3);
1014 params.alang[3] = 0;
1015 }
1016 else
1017 memset(params.alang, 0, 4);
1018
1019 start_pos = ts_detect_streams(demuxer, &params);
1020
1021 demuxer->sub->id = params.spid;
1022 priv->prog = params.prog;
1023
1024 if(params.vtype != UNKNOWN)
1025 {
1026 ts_add_stream(demuxer, priv->ts.pids[params.vpid]);
1027 sh_video = priv->ts.streams[params.vpid].sh;
1028 demuxer->video->id = priv->ts.streams[params.vpid].id;
1029 sh_video->ds = demuxer->video;
1030 sh_video->format = params.vtype;
1031 demuxer->video->sh = sh_video;
1032 }
1033
1034 if(params.atype != UNKNOWN)
1035 {
1036 ES_stream_t *es = priv->ts.pids[params.apid];
1037
1038 if(!IS_AUDIO(es->type) && !IS_AUDIO(es->subtype) && IS_AUDIO(params.atype)) es->subtype = params.atype;
1039 ts_add_stream(demuxer, priv->ts.pids[params.apid]);
1040 sh_audio = priv->ts.streams[params.apid].sh;
1041 demuxer->audio->id = priv->ts.streams[params.apid].id;
1042 sh_audio->ds = demuxer->audio;
1043 sh_audio->format = params.atype;
1044 demuxer->audio->sh = sh_audio;
1045 }
1046
1047
1048 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);
1049
1050
1051 start_pos = (start_pos <= priv->ts.packet_size ? 0 : start_pos - priv->ts.packet_size);
1052 demuxer->movi_start = start_pos;
1053 demuxer->reference_clock = MP_NOPTS_VALUE;
1054 stream_reset(demuxer->stream);
1055 stream_seek(demuxer->stream, start_pos); //IF IT'S FROM A PIPE IT WILL FAIL, BUT WHO CARES?
1056
1057
1058 priv->last_pid = 8192; //invalid pid
1059
1060 for(i = 0; i < 3; i++)
1061 {
1062 priv->fifo[i].pack = NULL;
1063 priv->fifo[i].offset = 0;
1064 }
1065 priv->fifo[0].ds = demuxer->audio;
1066 priv->fifo[1].ds = demuxer->video;
1067 priv->fifo[2].ds = demuxer->sub;
1068
1069 priv->fifo[0].buffer_size = 1536;
1070 priv->fifo[1].buffer_size = 32767;
1071 priv->fifo[2].buffer_size = 32767;
1072
1073 priv->pat.section.buffer_len = 0;
1074 for(i = 0; i < priv->pmt_cnt; i++)
1075 priv->pmt[i].section.buffer_len = 0;
1076
1077 demuxer->filepos = stream_tell(demuxer->stream);
1078 return demuxer;
1079 }
1080
1081 static void demux_close_ts(demuxer_t * demuxer)
1082 {
1083 uint16_t i;
1084 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
1085
1086 if(priv)
1087 {
1088 if(priv->pat.section.buffer)
1089 free(priv->pat.section.buffer);
1090 if(priv->pat.progs)
1091 free(priv->pat.progs);
1092
1093 if(priv->pmt)
1094 {
1095 for(i = 0; i < priv->pmt_cnt; i++)
1096 {
1097 if(priv->pmt[i].section.buffer)
1098 free(priv->pmt[i].section.buffer);
1099 if(priv->pmt[i].es)
1100 free(priv->pmt[i].es);
1101 }
1102 free(priv->pmt);
1103 }
1104 free(priv);
1105 }
1106 demuxer->priv=NULL;
1107 }
1108
1109
1110 extern unsigned char mp_getbits(unsigned char*, unsigned int, unsigned char);
1111 #define getbits mp_getbits
1112
1113 static int mp4_parse_sl_packet(pmt_t *pmt, uint8_t *buf, uint16_t packet_len, int pid, ES_stream_t *pes_es)
1114 {
1115 int i, n, m, mp4_es_id = -1;
1116 uint64_t v = 0;
1117 uint32_t pl_size = 0;
1118 int deg_flag = 0;
1119 mp4_es_descr_t *es = NULL;
1120 mp4_sl_config_t *sl = NULL;
1121 uint8_t au_start = 0, au_end = 0, rap_flag = 0, ocr_flag = 0, padding = 0, padding_bits = 0, idle = 0;
1122
1123 pes_es->is_synced = 0;
1124 mp_msg(MSGT_DEMUXER,MSGL_V, "mp4_parse_sl_packet, pid: %d, pmt: %pm, packet_len: %d\n", pid, pmt, packet_len);
1125 if(! pmt || !packet_len)
1126 return 0;
1127
1128 for(i = 0; i < pmt->es_cnt; i++)
1129 {
1130 if(pmt->es[i].pid == pid)
1131 mp4_es_id = pmt->es[i].mp4_es_id;
1132 }
1133 if(mp4_es_id < 0)
1134 return -1;
1135
1136 for(i = 0; i < pmt->mp4es_cnt; i++)
1137 {
1138 if(pmt->mp4es[i].id == mp4_es_id)
1139 es = &(pmt->mp4es[i]);
1140 }
1141 if(! es)
1142 return -1;
1143
1144 pes_es->subtype = es->decoder.object_type;
1145
1146 sl = &(es->sl);
1147 if(!sl)
1148 return -1;
1149
1150 //now es is the complete es_descriptor of out mp4 ES stream
1151 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "ID: %d, FLAGS: 0x%x, subtype: %x\n", es->id, sl->flags, pes_es->subtype);
1152
1153 n = 0;
1154 if(sl->au_start)
1155 pes_es->sl.au_start = au_start = getbits(buf, n++, 1);
1156 else
1157 pes_es->sl.au_start = (pes_es->sl.last_au_end ? 1 : 0);
1158 if(sl->au_end)
1159 pes_es->sl.au_end = au_end = getbits(buf, n++, 1);
1160
1161 if(!sl->au_start && !sl->au_end)
1162 {
1163 pes_es->sl.au_start = pes_es->sl.au_end = au_start = au_end = 1;
1164 }
1165 pes_es->sl.last_au_end = pes_es->sl.au_end;
1166
1167
1168 if(sl->ocr_len > 0)
1169 ocr_flag = getbits(buf, n++, 1);
1170 if(sl->idle)
1171 idle = getbits(buf, n++, 1);
1172 if(sl->padding)
1173 padding = getbits(buf, n++, 1);
1174 if(padding)
1175 {
1176 padding_bits = getbits(buf, n, 3);
1177 n += 3;
1178 }
1179
1180 if(idle || (padding && !padding_bits))
1181 {
1182 pes_es->payload_size = 0;
1183 return -1;
1184 }
1185
1186 //(! idle && (!padding || padding_bits != 0)) is true
1187 n += sl->packet_seqnum_len;
1188 if(sl->degr_len)
1189 deg_flag = getbits(buf, n++, 1);
1190 if(deg_flag)
1191 n += sl->degr_len;
1192
1193 if(ocr_flag)
1194 {
1195 n += sl->ocr_len;
1196 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "OCR: %d bits\n", sl->ocr_len);
1197 }
1198
1199 if(packet_len * 8 <= n)
1200 return -1;
1201
1202 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "\nAU_START: %d, AU_END: %d\n", au_start, au_end);
1203 if(au_start)
1204 {
1205 int dts_flag = 0, cts_flag = 0, ib_flag = 0;
1206
1207 if(sl->random_accesspoint)
1208 rap_flag = getbits(buf, n++, 1);
1209
1210 //check commented because it seems it's rarely used, and we need this flag set in case of au_start
1211 //the decoder will eventually discard the payload if it can't decode it
1212 //if(rap_flag || sl->random_accesspoint_only)
1213 pes_es->is_synced = 1;
1214
1215 n += sl->au_seqnum_len;
1216 if(packet_len * 8 <= n+8)
1217 return -1;
1218 if(sl->use_ts)
1219 {
1220 dts_flag = getbits(buf, n++, 1);
1221 cts_flag = getbits(buf, n++, 1);
1222 }
1223 if(sl->instant_bitrate_len)
1224 ib_flag = getbits(buf, n++, 1);
1225 if(packet_len * 8 <= n+8)
1226 return -1;
1227 if(dts_flag && (sl->ts_len > 0))
1228 {
1229 n += sl->ts_len;
1230 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "DTS: %d bits\n", sl->ts_len);
1231 }
1232 if(packet_len * 8 <= n+8)
1233 return -1;
1234 if(cts_flag && (sl->ts_len > 0))
1235 {
1236 int i = 0, m;
1237
1238 while(i < sl->ts_len)
1239 {
1240 m = FFMIN(8, sl->ts_len - i);
1241 v |= getbits(buf, n, m);
1242 if(sl->ts_len - i > 8)
1243 v <<= 8;
1244 i += m;
1245 n += m;
1246 if(packet_len * 8 <= n+8)
1247 return -1;
1248 }
1249
1250 pes_es->pts = (float) v / (float) sl->ts_resolution;
1251 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "CTS: %d bits, value: %"PRIu64"/%d = %.3f\n", sl->ts_len, v, sl->ts_resolution, pes_es->pts);
1252 }
1253
1254
1255 i = 0;
1256 pl_size = 0;
1257 while(i < sl->au_len)
1258 {
1259 m = FFMIN(8, sl->au_len - i);
1260 pl_size |= getbits(buf, n, m);
1261 if(sl->au_len - i > 8)
1262 pl_size <<= 8;
1263 i += m;
1264 n += m;
1265 if(packet_len * 8 <= n+8)
1266 return -1;
1267 }
1268 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "AU_LEN: %u (%d bits)\n", pl_size, sl->au_len);
1269 if(ib_flag)
1270 n += sl->instant_bitrate_len;
1271 }
1272
1273 m = (n+7)/8;
1274 if(0 < pl_size && pl_size < pes_es->payload_size)
1275 pes_es->payload_size = pl_size;
1276
1277 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",
1278 n, m, pes_es->payload_size, pl_size, (int) rap_flag, (int) sl->random_accesspoint_only);
1279
1280 return m;
1281 }
1282
1283 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)
1284 {
1285 unsigned char *p;
1286 uint32_t header_len;
1287 int64_t pts;
1288 uint32_t stream_id;
1289 uint32_t pkt_len, pes_is_aligned;
1290
1291 //Here we are always at the start of a PES packet
1292 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2(%p, %d): \n", buf, (uint32_t) packet_len);
1293
1294 if(packet_len == 0 || packet_len > 184)
1295 {
1296 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2, BUFFER LEN IS TOO SMALL OR TOO BIG: %d EXIT\n", packet_len);
1297 return 0;
1298 }
1299
1300 p = buf;
1301 pkt_len = packet_len;
1302
1303
1304 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: HEADER %02x %02x %02x %02x\n", p[0], p[1], p[2], p[3]);
1305 if (p[0] || p[1] || (p[2] != 1))
1306 {
1307 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: error HEADER %02x %02x %02x (should be 0x000001) \n", p[0], p[1], p[2]);
1308 return 0 ;
1309 }
1310
1311 packet_len -= 6;
1312 if(packet_len==0)
1313 {
1314 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: packet too short: %d, exit\n", packet_len);
1315 return 0;
1316 }
1317
1318 es->payload_size = (p[4] << 8 | p[5]);
1319 pes_is_aligned = (p[6] & 4);
1320
1321 stream_id = p[3];
1322
1323
1324 if (p[7] & 0x80)
1325 { /* pts available */
1326 pts = (int64_t)(p[9] & 0x0E) << 29 ;
1327 pts |= p[10] << 22 ;
1328 pts |= (p[11] & 0xFE) << 14 ;
1329 pts |= p[12] << 7 ;
1330 pts |= (p[13] & 0xFE) >> 1 ;
1331
1332 es->pts = pts / 90000.0f;
1333 }
1334 else
1335 es->pts = 0.0f;
1336
1337
1338 header_len = p[8];
1339
1340
1341 if (header_len + 9 > pkt_len) //9 are the bytes read up to the header_length field
1342 {
1343 mp_msg(MSGT_DEMUX, MSGL_DBG2, "demux_ts: illegal value for PES_header_data_length (0x%02x)\n", header_len);
1344 return 0;
1345 }
1346
1347 p += header_len + 9;
1348 packet_len -= header_len + 3;
1349
1350 if(es->payload_size)
1351 es->payload_size -= header_len + 3;
1352
1353
1354 es->is_synced = 1; //only for SL streams we have to make sure it's really true, see below
1355 if (stream_id == 0xbd)
1356 {
1357 mp_msg(MSGT_DEMUX, MSGL_DBG3, "pes_parse2: audio buf = %02X %02X %02X %02X %02X %02X %02X %02X, 80: %d\n",
1358 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[0] & 0x80);
1359
1360
1361 /*
1362 * we check the descriptor tag first because some stations
1363 * do not include any of the A52 header info in their audio tracks
1364 * these "raw" streams may begin with a byte that looks like a stream type.
1365 */
1366
1367
1368 if(
1369 (type_from_pmt == AUDIO_A52) || /* A52 - raw */
1370 (p[0] == 0x0B && p[1] == 0x77) /* A52 - syncword */
1371 )
1372 {
1373 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 RAW OR SYNCWORD\n");
1374 es->start = p;
1375 es->size = packet_len;
1376 es->type = AUDIO_A52;
1377 es->payload_size -= packet_len;
1378
1379 return 1;
1380 }
1381 /* SPU SUBS */
1382 else if(type_from_pmt == SPU_DVB ||
1383 ((p[0] == 0x20) && pes_is_aligned)) // && p[1] == 0x00))
1384 {
1385 es->start = p;
1386 es->size = packet_len;
1387 es->type = SPU_DVB;
1388 es->payload_size -= packet_len;
1389
1390 return 1;
1391 }
1392 else if (pes_is_aligned && ((p[0] & 0xE0) == 0x20)) //SPU_DVD
1393 {
1394 //DVD SUBS
1395 es->start = p+1;
1396 es->size = packet_len-1;
1397 es->type = SPU_DVD;
1398 es->payload_size -= packet_len;
1399
1400 return 1;
1401 }
1402 else if (pes_is_aligned && (p[0] & 0xF8) == 0x80)
1403 {
1404 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 WITH HEADER\n");
1405 es->start = p+4;
1406 es->size = packet_len - 4;
1407 es->type = AUDIO_A52;
1408 es->payload_size -= packet_len;
1409
1410 return 1;
1411 }
1412 else if (pes_is_aligned && ((p[0]&0xf0) == 0xa0))
1413 {
1414 int pcm_offset;
1415
1416 for (pcm_offset=0; ++pcm_offset < packet_len-1 ; )
1417 {
1418 if (p[pcm_offset] == 0x01 && p[pcm_offset+1] == 0x80)
1419 { /* START */
1420 pcm_offset += 2;
1421 break;
1422 }
1423 }
1424
1425 es->start = p + pcm_offset;
1426 es->size = packet_len - pcm_offset;
1427 es->type = AUDIO_LPCM_BE;
1428 es->payload_size -= packet_len;
1429
1430 return 1;
1431 }
1432 else
1433 {
1434 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PES_PRIVATE1\n");
1435 es->start = p;
1436 es->size = packet_len;
1437 es->type = (type_from_pmt == UNKNOWN ? PES_PRIVATE1 : type_from_pmt);
1438 es->payload_size -= packet_len;
1439
1440 return 1;
1441 }
1442 }
1443 else if(((stream_id >= 0xe0) && (stream_id <= 0xef)) || (stream_id == 0xfd && type_from_pmt != UNKNOWN))
1444 {
1445 es->start = p;
1446 es->size = packet_len;
1447 if(type_from_pmt != UNKNOWN)
1448 es->type = type_from_pmt;
1449 else
1450 es->type = VIDEO_MPEG2;
1451 if(es->payload_size)
1452 es->payload_size -= packet_len;
1453
1454 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: M2V size %d\n", es->size);
1455 return 1;
1456 }
1457 else if ((stream_id == 0xfa))
1458 {
1459 int l;
1460
1461 es->is_synced = 0;
1462 if(type_from_pmt != UNKNOWN) //MP4 A/V or SL
1463 {
1464 es->start = p;
1465 es->size = packet_len;
1466 es->type = type_from_pmt;
1467
1468 if(type_from_pmt == SL_PES_STREAM)
1469 {
1470 //if(pes_is_aligned)
1471 //{
1472 l = mp4_parse_sl_packet(pmt, p, packet_len, pid, es);
1473 mp_msg(MSGT_DEMUX, MSGL_DBG2, "L=%d, TYPE=%x\n", l, type_from_pmt);
1474 if(l < 0)
1475 {
1476 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: couldn't parse SL header, passing along full PES payload\n");
1477 l = 0;
1478 }
1479 //}
1480
1481 es->start += l;
1482 es->size -= l;
1483 }
1484
1485 if(es->payload_size)
1486 es->payload_size -= packet_len;
1487 return 1;
1488 }
1489 }
1490 else if ((stream_id & 0xe0) == 0xc0)
1491 {
1492 es->start = p;
1493 es->size = packet_len;
1494
1495 if(type_from_pmt != UNKNOWN)
1496 es->type = type_from_pmt;
1497 else
1498 es->type = AUDIO_MP2;
1499
1500 es->payload_size -= packet_len;
1501
1502 return 1;
1503 }
1504 else if (type_from_pmt != -1) //as a last resort here we trust the PMT, if present
1505 {
1506 es->start = p;
1507 es->size = packet_len;
1508 es->type = type_from_pmt;
1509 es->payload_size -= packet_len;
1510
1511 return 1;
1512 }
1513 else
1514 {
1515 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: unknown packet, id: %x\n", stream_id);
1516 }
1517
1518 es->is_synced = 0;
1519 return 0;
1520 }
1521
1522
1523
1524
1525 static int ts_sync(stream_t *stream)
1526 {
1527 int c=0;
1528
1529 mp_msg(MSGT_DEMUX, MSGL_DBG3, "TS_SYNC \n");
1530
1531 while(((c=stream_read_char(stream)) != 0x47) && ! stream->eof);
1532
1533 if(c == 0x47)
1534 return c;
1535 else
1536 return 0;
1537 }
1538
1539
1540 static void ts_dump_streams(ts_priv_t *priv)
1541 {
1542 int i;
1543
1544 for(i = 0; i < 3; i++)
1545 {
1546 if((priv->fifo[i].pack != NULL) && (priv->fifo[i].offset != 0))
1547 {
1548 resize_demux_packet(priv->fifo[i].pack, priv->fifo[i].offset);
1549 ds_add_packet(priv->fifo[i].ds, priv->fifo[i].pack);
1550 priv->fifo[i].offset = 0;
1551 priv->fifo[i].pack = NULL;
1552 }
1553 }
1554 }
1555
1556
1557 static inline int32_t prog_idx_in_pat(ts_priv_t *priv, uint16_t progid)
1558 {
1559 int x;
1560
1561 if(priv->pat.progs == NULL)
1562 return -1;
1563
1564 for(x = 0; x < priv->pat.progs_cnt; x++)
1565 {
1566 if(priv->pat.progs[x].id == progid)
1567 return x;
1568 }
1569
1570 return -1;
1571 }
1572
1573
1574 static inline int32_t prog_id_in_pat(ts_priv_t *priv, uint16_t pid)
1575 {
1576 int x;
1577
1578 if(priv->pat.progs == NULL)
1579 return -1;
1580
1581 for(x = 0; x < priv->pat.progs_cnt; x++)
1582 {
1583 if(priv->pat.progs[x].pmt_pid == pid)
1584 return priv->pat.progs[x].id;
1585 }
1586
1587 return -1;
1588 }
1589
1590 static int collect_section(ts_section_t *section, int is_start, unsigned char *buff, int size)
1591 {
1592 uint8_t *ptr;
1593 uint16_t tlen;
1594 int skip, tid;
1595
1596 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, start: %d, size: %d, collected: %d\n", is_start, size, section->buffer_len);
1597 if(! is_start && !section->buffer_len)
1598 return 0;
1599
1600 if(is_start)
1601 {
1602 if(! section->buffer)
1603 {
1604 section->buffer = (uint8_t*) malloc(4096+256);
1605 if(section->buffer == NULL)
1606 return 0;
1607 }
1608 section->buffer_len = 0;
1609 }
1610
1611 if(size + section->buffer_len > 4096+256)
1612 {
1613 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, excessive len: %d + %d\n", section->buffer_len, size);
1614 return 0;
1615 }
1616
1617 memcpy(&(section->buffer[section->buffer_len]), buff, size);
1618 section->buffer_len += size;
1619
1620 if(section->buffer_len < 3)
1621 return 0;
1622
1623 skip = section->buffer[0];
1624 if(skip + 4 > section->buffer_len)
1625 return 0;
1626
1627 ptr = &(section->buffer[skip + 1]);
1628 tid = ptr[0];
1629 tlen = ((ptr[1] & 0x0f) << 8) | ptr[2];
1630 mp_msg(MSGT_DEMUX, MSGL_V, "SKIP: %d+1, TID: %d, TLEN: %d, COLLECTED: %d\n", skip, tid, tlen, section->buffer_len);
1631 if(section->buffer_len < (skip+1+3+tlen))
1632 {
1633 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DATA IS NOT ENOUGH, NEXT TIME\n");
1634 return 0;
1635 }
1636
1637 return skip+1;
1638 }
1639
1640 static int parse_pat(ts_priv_t * priv, int is_start, unsigned char *buff, int size)
1641 {
1642 int skip;
1643 unsigned char *ptr;
1644 unsigned char *base;
1645 int entries, i;
1646 uint16_t progid;
1647 struct pat_progs_t *tmp;
1648 ts_section_t *section;
1649
1650 section = &(priv->pat.section);
1651 skip = collect_section(section, is_start, buff, size);
1652 if(! skip)
1653 return 0;
1654
1655 ptr = &(section->buffer[skip]);
1656 //PARSING
1657 priv->pat.table_id = ptr[0];
1658 if(priv->pat.table_id != 0)
1659 return 0;
1660 priv->pat.ssi = (ptr[1] >> 7) & 0x1;
1661 priv->pat.curr_next = ptr[5] & 0x01;
1662 priv->pat.ts_id = (ptr[3] << 8 ) | ptr[4];
1663 priv->pat.version_number = (ptr[5] >> 1) & 0x1F;
1664 priv->pat.section_length = ((ptr[1] & 0x03) << 8 ) | ptr[2];
1665 priv->pat.section_number = ptr[6];
1666 priv->pat.last_section_number = ptr[7];
1667
1668 //check_crc32(0xFFFFFFFFL, ptr, priv->pat.buffer_len - 4, &ptr[priv->pat.buffer_len - 4]);
1669 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);
1670
1671 entries = (int) (priv->pat.section_length - 9) / 4; //entries per section
1672
1673 for(i=0; i < entries; i++)
1674 {
1675 int32_t idx;
1676 base = &ptr[8 + i*4];
1677 progid = (base[0] << 8) | base[1];
1678
1679 if((idx = prog_idx_in_pat(priv, progid)) == -1)
1680 {
1681 int sz = sizeof(struct pat_progs_t) * (priv->pat.progs_cnt+1);
1682 tmp = realloc_struct(priv->pat.progs, priv->pat.progs_cnt+1, sizeof(struct pat_progs_t));
1683 if(tmp == NULL)
1684 {
1685 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PAT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
1686 break;
1687 }
1688 priv->pat.progs = tmp;
1689 idx = priv->pat.progs_cnt;
1690 priv->pat.progs_cnt++;
1691 }
1692
1693 priv->pat.progs[idx].id = progid;
1694 priv->pat.progs[idx].pmt_pid = ((base[2] & 0x1F) << 8) | base[3];
1695 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);
1696 }
1697
1698 return 1;
1699 }
1700
1701
1702 static inline int32_t es_pid_in_pmt(pmt_t * pmt, uint16_t pid)
1703 {
1704 uint16_t i;
1705
1706 if(pmt == NULL)
1707 return -1;
1708
1709 if(pmt->es == NULL)
1710 return -1;
1711
1712 for(i = 0; i < pmt->es_cnt; i++)
1713 {
1714 if(pmt->es[i].pid == pid)
1715 return (int32_t) i;
1716 }
1717
1718 return -1;
1719 }
1720
1721
1722 static uint16_t get_mp4_desc_len(uint8_t *buf, int *len)
1723 {
1724 //uint16_t i = 0, size = 0;
1725 int i = 0, j, size = 0;
1726
1727 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PARSE_MP4_DESC_LEN(%d), bytes: ", *len);
1728 j = FFMIN(*len, 4);
1729 while(i < j)
1730 {
1731 mp_msg(MSGT_DEMUX, MSGL_DBG2, " %x ", buf[i]);
1732 size |= (buf[i] & 0x7f);
1733 if(!(buf[i] & 0x80))
1734 break;
1735 size <<= 7;
1736 i++;
1737 }
1738 mp_msg(MSGT_DEMUX, MSGL_DBG2, ", SIZE=%d\n", size);
1739
1740 *len = i+1;
1741 return size;
1742 }
1743
1744
1745 static uint16_t parse_mp4_slconfig_descriptor(uint8_t *buf, int len, void *elem)
1746 {
1747 int i = 0;
1748 mp4_es_descr_t *es;
1749 mp4_sl_config_t *sl;
1750
1751 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_SLCONFIG_DESCRIPTOR(%d)\n", len);
1752 es = (mp4_es_descr_t *) elem;
1753 if(!es)
1754 {
1755 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1756 return len;
1757 }
1758 sl = &(es->sl);
1759
1760 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;
1761 sl->ocr = sl->dts = sl->cts = 0;
1762
1763 if(buf[0] == 0)
1764 {
1765 i++;
1766 sl->flags = buf[i];
1767 i++;
1768 sl->ts_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1769 i += 4;
1770 sl->ocr_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1771 i += 4;
1772 sl->ts_len = buf[i];
1773 i++;
1774 sl->ocr_len = buf[i];
1775 i++;
1776 sl->au_len = buf[i];
1777 i++;
1778 sl->instant_bitrate_len = buf[i];
1779 i++;
1780 sl->degr_len = (buf[i] >> 4) & 0x0f;
1781 sl->au_seqnum_len = ((buf[i] & 0x0f) << 1) | ((buf[i+1] >> 7) & 0x01);
1782 i++;
1783 sl->packet_seqnum_len = ((buf[i] >> 2) & 0x1f);
1784 i++;
1785
1786 }
1787 else if(buf[0] == 1)
1788 {
1789 sl->flags = 0;
1790 sl->ts_resolution = 1000;
1791 sl->ts_len = 32;
1792 i++;
1793 }
1794 else if(buf[0] == 2)
1795 {
1796 sl->flags = 4;
1797 i++;
1798 }
1799 else
1800 {
1801 sl->flags = 0;
1802 i++;
1803 }
1804
1805 sl->au_start = (sl->flags >> 7) & 0x1;
1806 sl->au_end = (sl->flags >> 6) & 0x1;
1807 sl->random_accesspoint = (sl->flags >> 5) & 0x1;
1808 sl->random_accesspoint_only = (sl->flags >> 4) & 0x1;
1809 sl->padding = (sl->flags >> 3) & 0x1;
1810 sl->use_ts = (sl->flags >> 2) & 0x1;
1811 sl->idle = (sl->flags >> 1) & 0x1;
1812 sl->duration = sl->flags & 0x1;
1813
1814 if(sl->duration)
1815 {
1816 sl->timescale = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1817 i += 4;
1818 sl->au_duration = (buf[i] << 8) | buf[i+1];
1819 i += 2;
1820 sl->cts_duration = (buf[i] << 8) | buf[i+1];
1821 i += 2;
1822 }
1823 else //no support for fixed durations atm
1824 sl->timescale = sl->au_duration = sl->cts_duration = 0;
1825
1826 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",
1827 len, buf[0], sl->flags, sl->use_ts, sl->ts_len, sl->timescale, (uint64_t) sl->dts, (uint64_t) sl->cts);
1828
1829 return len;
1830 }
1831
1832 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem);
1833
1834 static uint16_t parse_mp4_decoder_config_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
1835 {
1836 int i = 0, j;
1837 mp4_es_descr_t *es;
1838 mp4_decoder_config_t *dec;
1839
1840 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_CONFIG_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 dec = (mp4_decoder_config_t*) &(es->decoder);
1848
1849 dec->object_type = buf[i];
1850 dec->stream_type = (buf[i+1]>>2) & 0x3f;
1851
1852 if(dec->object_type == 1 && dec->stream_type == 1)
1853 {
1854 dec->object_type = MP4_OD;
1855 dec->stream_type = MP4_OD;
1856 }
1857 else if(dec->stream_type == 4)
1858 {
1859 if(dec->object_type == 0x6a)
1860 dec->object_type = VIDEO_MPEG1;
1861 if(dec->object_type >= 0x60 && dec->object_type <= 0x65)
1862 dec->object_type = VIDEO_MPEG2;
1863 else if(dec->object_type == 0x20)
1864 dec->object_type = VIDEO_MPEG4;
1865 else if(dec->object_type == 0x21)
1866 dec->object_type = VIDEO_AVC;
1867 /*else if(dec->object_type == 0x22)
1868 fprintf(stderr, "TYPE 0x22\n");*/
1869 else dec->object_type = UNKNOWN;
1870 }
1871 else if(dec->stream_type == 5)
1872 {
1873 if(dec->object_type == 0x40)
1874 dec->object_type = AUDIO_AAC;
1875 else if(dec->object_type == 0x6b)
1876 dec->object_type = AUDIO_MP2;
1877 else if(dec->object_type >= 0x66 && dec->object_type <= 0x69)
1878 dec->object_type = AUDIO_MP2;
1879 else
1880 dec->object_type = UNKNOWN;
1881 }
1882 else
1883 dec->object_type = dec->stream_type = UNKNOWN;
1884
1885 if(dec->object_type != UNKNOWN)
1886 {
1887 //update the type of the current stream
1888 for(j = 0; j < pmt->es_cnt; j++)
1889 {
1890 if(pmt->es[j].mp4_es_id == es->id)
1891 {
1892 pmt->es[j].type = SL_PES_STREAM;
1893 }
1894 }
1895 }
1896
1897 if(len > 13)
1898 parse_mp4_descriptors(pmt, &buf[13], len-13, dec);
1899
1900 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);
1901
1902 return len;
1903 }
1904
1905 static uint16_t parse_mp4_decoder_specific_descriptor(uint8_t *buf, int len, void *elem)
1906 {
1907 int i;
1908 mp4_decoder_config_t *dec;
1909
1910 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_SPECIFIC_DESCRIPTOR(%d)\n", len);
1911 dec = (mp4_decoder_config_t *) elem;
1912 if(!dec)
1913 {
1914 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1915 return len;
1916 }
1917
1918 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4 SPECIFIC INFO BYTES: \n");
1919 for(i=0; i<len; i++)
1920 mp_msg(MSGT_DEMUX, MSGL_DBG2, "%02x ", buf[i]);
1921 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\n");
1922
1923 if(len > MAX_EXTRADATA_SIZE)
1924 {
1925 mp_msg(MSGT_DEMUX, MSGL_ERR, "DEMUX_TS, EXTRADATA SUSPICIOUSLY BIG: %d, REFUSED\r\n", len);
1926 return len;
1927 }
1928 memcpy(dec->buf, buf, len);
1929 dec->buf_size = len;
1930
1931 return len;
1932 }
1933
1934 static uint16_t parse_mp4_es_descriptor(pmt_t *pmt, uint8_t *buf, int len)
1935 {
1936 int i = 0, j = 0, k, found;
1937 uint8_t flag;
1938 mp4_es_descr_t es, *target_es = NULL, *tmp;
1939
1940 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4ES: len=%d\n", len);
1941 memset(&es, 0, sizeof(mp4_es_descr_t));
1942 while(i < len)
1943 {
1944 es.id = (buf[i] << 8) | buf[i+1];
1945 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_ID: %d\n", es.id);
1946 i += 2;
1947 flag = buf[i];
1948 i++;
1949 if(flag & 0x80)
1950 i += 2;
1951 if(flag & 0x40)
1952 i += buf[i]+1;
1953 if(flag & 0x20) //OCR, maybe we need it
1954 i += 2;
1955
1956 j = parse_mp4_descriptors(pmt, &buf[i], len-i, &es);
1957 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);
1958 if(es.decoder.object_type != UNKNOWN && es.decoder.stream_type != UNKNOWN)
1959 {
1960 found = 0;
1961 //search this ES_ID if we already have it
1962 for(k=0; k < pmt->mp4es_cnt; k++)
1963 {
1964 if(pmt->mp4es[k].id == es.id)
1965 {
1966 target_es = &(pmt->mp4es[k]);
1967 found = 1;
1968 }
1969 }
1970
1971 if(! found)
1972 {
1973 tmp = realloc_struct(pmt->mp4es, pmt->mp4es_cnt+1, sizeof(mp4_es_descr_t));
1974 if(tmp == NULL)
1975 {
1976 fprintf(stderr, "CAN'T REALLOC MP4_ES_DESCR\n");
1977 continue;
1978 }
1979 pmt->mp4es = tmp;
1980 target_es = &(pmt->mp4es[pmt->mp4es_cnt]);
1981 pmt->mp4es_cnt++;
1982 }
1983 memcpy(target_es, &es, sizeof(mp4_es_descr_t));
1984 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_CNT: %d, ID=%d\n", pmt->mp4es_cnt, target_es->id);
1985 }
1986
1987 i += j;
1988 }
1989
1990 return len;
1991 }
1992
1993 static void parse_mp4_object_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
1994 {
1995 int i, j = 0, id;
1996
1997 i=0;
1998 id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
1999 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_OBJECT_DESCRIPTOR: len=%d, OD_ID=%d\n", len, id);
2000 if(buf[1] & 0x20)
2001 {
2002 i += buf[2] + 1; //url
2003 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2004 }
2005 else
2006 {
2007 i = 2;
2008
2009 while(i < len)
2010 {
2011 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2012 mp_msg(MSGT_DEMUX, MSGL_V, "OBJD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2013 i += j;
2014 }
2015 }
2016 }
2017
2018
2019 static void parse_mp4_iod(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2020 {
2021 int i, j = 0;
2022 mp4_od_t *iod = &(pmt->iod);
2023
2024 iod->id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
2025 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_IOD: len=%d, IOD_ID=%d\n", len, iod->id);
2026 i = 2;
2027 if(buf[1] & 0x20)
2028 {
2029 i += buf[2] + 1; //url
2030 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2031 }
2032 else
2033 {
2034 i = 7;
2035 while(i < len)
2036 {
2037 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2038 mp_msg(MSGT_DEMUX, MSGL_V, "IOD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2039 i += j;
2040 }
2041 }
2042 }
2043
2044 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2045 {
2046 int tag, descr_len, i = 0, j = 0;
2047
2048 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DESCRIPTORS, len=%d\n", len);
2049 if(! len)
2050 return len;
2051
2052 while(i < len)
2053 {
2054 tag = buf[i];
2055 j = len - i -1;
2056 descr_len = get_mp4_desc_len(&(buf[i+1]), &j);
2057 mp_msg(MSGT_DEMUX, MSGL_V, "TAG=%d (0x%x), DESCR_len=%d, len=%d, j=%d\n", tag, tag, descr_len, len, j);
2058 if(descr_len > len - j+1)
2059 {
2060 mp_msg(MSGT_DEMUX, MSGL_V, "descriptor is too long, exit\n");
2061 return len;
2062 }
2063 i += j+1;
2064
2065 switch(tag)
2066 {
2067 case 0x1:
2068 parse_mp4_object_descriptor(pmt, &(buf[i]), descr_len, elem);
2069 break;
2070 case 0x2:
2071 parse_mp4_iod(pmt, &(buf[i]), descr_len, elem);
2072 break;
2073 case 0x3:
2074 parse_mp4_es_descriptor(pmt, &(buf[i]), descr_len);
2075 break;
2076 case 0x4:
2077 parse_mp4_decoder_config_descriptor(pmt, &buf[i], descr_len, elem);
2078 break;
2079 case 0x05:
2080 parse_mp4_decoder_specific_descriptor(&buf[i], descr_len, elem);
2081 break;
2082 case 0x6:
2083 parse_mp4_slconfig_descriptor(&buf[i], descr_len, elem);
2084 break;
2085 default:
2086 mp_msg(MSGT_DEMUX, MSGL_V, "Unsupported mp4 descriptor 0x%x\n", tag);
2087 }
2088 i += descr_len;
2089 }
2090
2091 return len;
2092 }
2093
2094 static ES_stream_t *new_pid(ts_priv_t *priv, int pid)
2095 {
2096 ES_stream_t *tss;
2097
2098 tss = malloc(sizeof(ES_stream_t));
2099 if(! tss)
2100 return NULL;
2101 memset(tss, 0, sizeof(ES_stream_t));
2102 tss->pid = pid;
2103 tss->last_cc = -1;
2104 tss->type = UNKNOWN;
2105 tss->subtype = UNKNOWN;
2106 tss->is_synced = 0;
2107 tss->extradata = NULL;
2108 tss->extradata_alloc = tss->extradata_len = 0;
2109 priv->ts.pids[pid] = tss;
2110
2111 return tss;
2112 }
2113
2114
2115 static int parse_program_descriptors(pmt_t *pmt, uint8_t *buf, uint16_t len)
2116 {
2117 uint16_t i = 0, k, olen = len;
2118
2119 while(len > 0)
2120 {
2121 mp_msg(MSGT_DEMUX, MSGL_V, "PROG DESCR, TAG=%x, LEN=%d(%x)\n", buf[i], buf[i+1], buf[i+1]);
2122 if(buf[i+1] > len-2)
2123 {
2124 mp_msg(MSGT_DEMUX, MSGL_V, "ERROR, descriptor len is too long, skipping\n");
2125 return olen;
2126 }
2127
2128 if(buf[i] == 0x1d)
2129 {
2130 if(buf[i+3] == 2) //buggy versions of vlc muxer make this non-standard mess (missing iod_scope)
2131 k = 3;
2132 else
2133 k = 4; //this is standard compliant
2134 parse_mp4_descriptors(pmt, &buf[i+k], (int) buf[i+1]-(k-2), NULL);
2135 }
2136
2137 len -= 2 + buf[i+1];
2138 }
2139
2140 return olen;
2141 }
2142
2143 static int parse_descriptors(struct pmt_es_t *es, uint8_t *ptr)
2144 {
2145 int j, descr_len, len;
2146
2147 j = 0;
2148 len = es->descr_length;
2149 while(len > 2)
2150 {
2151 descr_len = ptr[j+1];
2152 mp_msg(MSGT_DEMUX, MSGL_V, "...descr id: 0x%x, len=%d\n", ptr[j], descr_len);
2153 if(descr_len > len)
2154 {
2155 mp_msg(MSGT_DEMUX, MSGL_ERR, "INVALID DESCR LEN for tag %02x: %d vs %d max, EXIT LOOP\n", ptr[j], descr_len, len);
2156 return -1;
2157 }
2158
2159
2160 if(ptr[j] == 0x6a || ptr[j] == 0x7a) //A52 Descriptor
2161 {
2162 if(es->type == 0x6)
2163 {
2164 es->type = AUDIO_A52;
2165 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB A52 Descriptor\n");
2166 }
2167 }
2168 else if(ptr[j] == 0x7b) //DVB DTS Descriptor
2169 {
2170 if(es->type == 0x6)
2171 {
2172 es->type = AUDIO_DTS;
2173 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB DTS Descriptor\n");
2174 }
2175 }
2176 else if(ptr[j] == 0x59) //Subtitling Descriptor
2177 {
2178 uint8_t subtype;
2179
2180 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Subtitling Descriptor\n");
2181 if(descr_len < 8)
2182 {
2183 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Descriptor length too short for DVB Subtitle Descriptor: %d, SKIPPING\n", descr_len);
2184 }
2185 else
2186 {
2187 memcpy(es->lang, &ptr[j+2], 3);
2188 es->lang[3] = 0;
2189 subtype = ptr[j+5];
2190 if(
2191 (subtype >= 0x10 && subtype <= 0x13) ||
2192 (subtype >= 0x20 && subtype <= 0x23)
2193 )
2194 {
2195 es->type = SPU_DVB;
2196 //page parameters: compo page 2 bytes, ancillary page 2 bytes
2197 }
2198 else
2199 es->type = UNKNOWN;
2200 }
2201 }
2202 else if(ptr[j] == 0x50) //Component Descriptor
2203 {
2204 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Component Descriptor\n");
2205 memcpy(es->lang, &ptr[j+5], 3);
2206 es->lang[3] = 0;
2207 }
2208 else if(ptr[j] == 0xa) //Language Descriptor
2209 {
2210 memcpy(es->lang, &ptr[j+2], 3);
2211 es->lang[3] = 0;
2212 mp_msg(MSGT_DEMUX, MSGL_V, "Language Descriptor: %s\n", es->lang);
2213 }
2214 else if(ptr[j] == 0x5) //Registration Descriptor (looks like e fourCC :) )
2215 {
2216 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor\n");
2217 if(descr_len < 4)
2218 {
2219 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor length too short: %d, SKIPPING\n", descr_len);
2220 }
2221 else
2222 {
2223 char *d;
2224 memcpy(es->format_descriptor, &ptr[j+2], 4);
2225 es->format_descriptor[4] = 0;
2226
2227 d = &ptr[j+2];
2228 if(d[0] == 'A' && d[1] == 'C' && d[2] == '-' && d[3] == '3')
2229 {
2230 es->type = AUDIO_A52;
2231 }
2232 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '1')
2233 {
2234 es->type = AUDIO_DTS;
2235 }
2236 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '2')
2237 {
2238 es->type = AUDIO_DTS;
2239 }
2240 else if(d[0] == 'V' && d[1] == 'C' && d[2] == '-' && d[3] == '1')
2241 {
2242 es->type = VIDEO_VC1;
2243 }
2244 else
2245 es->type = UNKNOWN;
2246 mp_msg(MSGT_DEMUX, MSGL_DBG2, "FORMAT %s\n", es->format_descriptor);
2247 }
2248 }
2249 else if(ptr[j] == 0x1e)
2250 {
2251 es->mp4_es_id = (ptr[j+2] << 8) | ptr[j+3];
2252 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);
2253 }
2254 else
2255 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Unknown descriptor 0x%x, SKIPPING\n", ptr[j]);
2256
2257 len -= 2 + descr_len;
2258 j += 2 + descr_len;
2259 }
2260
2261 return 1;
2262 }
2263
2264 static int parse_sl_section(pmt_t *pmt, ts_section_t *section, int is_start, unsigned char *buff, int size)
2265 {
2266 int tid, len, skip;
2267 uint8_t *ptr;
2268 skip = collect_section(section, is_start, buff, size);
2269 if(! skip)
2270 return 0;
2271
2272 ptr = &(section->buffer[skip]);
2273 tid = ptr[0];
2274 len = ((ptr[1] & 0x0f) << 8) | ptr[2];
2275 mp_msg(MSGT_DEMUX, MSGL_V, "TABLEID: %d (av. %d), skip=%d, LEN: %d\n", tid, section->buffer_len, skip, len);
2276 if(len > 4093 || section->buffer_len < len || tid != 5)
2277 {
2278 mp_msg(MSGT_DEMUX, MSGL_V, "SECTION TOO LARGE or wrong section type, EXIT\n");
2279 return 0;
2280 }
2281
2282 if(! (ptr[5] & 1))
2283 return 0;
2284
2285 //8 is the current position, len - 9 is the amount of data available
2286 parse_mp4_descriptors(pmt, &ptr[8], len - 9, NULL);
2287
2288 return 1;
2289 }
2290
2291 static int parse_pmt(ts_priv_t * priv, uint16_t progid, uint16_t pid, int is_start, unsigned char *buff, int size)
2292 {
2293 unsigned char *base, *es_base;
2294 pmt_t *pmt;
2295 int32_t idx, es_count, section_bytes;
2296 uint8_t m=0;
2297 int skip;
2298 pmt_t *tmp;
2299 struct pmt_es_t *tmp_es;
2300 ts_section_t *section;
2301 ES_stream_t *tss;
2302
2303 idx = progid_idx_in_pmt(priv, progid);
2304
2305 if(idx == -1)
2306 {
2307 int sz = (priv->pmt_cnt + 1) * sizeof(pmt_t);
2308 tmp = realloc_struct(priv->pmt, priv->pmt_cnt + 1, sizeof(pmt_t));
2309 if(tmp == NULL)
2310 {
2311 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
2312 return 0;
2313 }
2314 priv->pmt = tmp;
2315 idx = priv->pmt_cnt;
2316 memset(&(priv->pmt[idx]), 0, sizeof(pmt_t));
2317 priv->pmt_cnt++;
2318 priv->pmt[idx].progid = progid;
2319 }
2320
2321 pmt = &(priv->pmt[idx]);
2322
2323 section = &(pmt->section);
2324 skip = collect_section(section, is_start, buff, size);
2325 if(! skip)
2326 return 0;
2327
2328 base = &(section->buffer[skip]);
2329
2330 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",
2331 progid, pmt->section.buffer_len, is_start, pid, size, m, pmt->es_cnt, idx, pmt);
2332
2333 pmt->table_id = base[0];
2334 if(pmt->table_id != 2)
2335 return -1;
2336 pmt->ssi = base[1] & 0x80;
2337 pmt->section_length = (((base[1] & 0xf) << 8 ) | base[2]);
2338 pmt->version_number = (base[5] >> 1) & 0x1f;
2339 pmt->curr_next = (base[5] & 1);
2340 pmt->section_number = base[6];
2341 pmt->last_section_number = base[7];
2342 pmt->PCR_PID = ((base[8] & 0x1f) << 8 ) | base[9];
2343 pmt->prog_descr_length = ((base[10] & 0xf) << 8 ) | base[11];
2344 if(pmt->prog_descr_length > pmt->section_length - 9)
2345 {
2346 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, INVALID PROG_DESCR LENGTH (%d vs %d)\n", pmt->prog_descr_length, pmt->section_length - 9);
2347 return -1;
2348 }
2349
2350 if(pmt->prog_descr_length)
2351 parse_program_descriptors(pmt, &base[12], pmt->prog_descr_length);
2352
2353 es_base = &base[12 + pmt->prog_descr_length]; //the beginning of th ES loop
2354
2355 section_bytes= pmt->section_length - 13 - pmt->prog_descr_length;
2356 es_count = 0;
2357
2358 while(section_bytes >= 5)
2359 {
2360 int es_pid, es_type;
2361
2362 es_type = es_base[0];
2363 es_pid = ((es_base[1] & 0x1f) << 8) | es_base[2];
2364
2365 idx = es_pid_in_pmt(pmt, es_pid);
2366 if(idx == -1)
2367 {
2368 int sz = sizeof(struct pmt_es_t) * (pmt->es_cnt + 1);
2369 tmp_es = realloc_struct(pmt->es, pmt->es_cnt + 1, sizeof(struct pmt_es_t));
2370 if(tmp_es == NULL)
2371 {
2372 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT, COULDN'T ALLOCATE %d bytes for PMT_ES\n", sz);
2373 continue;
2374 }
2375 pmt->es = tmp_es;
2376 idx = pmt->es_cnt;
2377 memset(&(pmt->es[idx]), 0, sizeof(struct pmt_es_t));
2378 pmt->es_cnt++;
2379 }
2380
2381 pmt->es[idx].descr_length = ((es_base[3] & 0xf) << 8) | es_base[4];
2382
2383
2384 if(pmt->es[idx].descr_length > section_bytes - 5)
2385 {
2386 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, ES_DESCR_LENGTH TOO LARGE %d > %d, EXIT\n",
2387 pmt->es[idx].descr_length, section_bytes - 5);
2388 return -1;
2389 }
2390
2391
2392 pmt->es[idx].pid = es_pid;
2393 if(es_type != 0x6)
2394 pmt->es[idx].type = UNKNOWN;
2395 else
2396 pmt->es[idx].type = es_type;
2397
2398 parse_descriptors(&pmt->es[idx], &es_base[5]);
2399
2400 switch(es_type)
2401 {
2402 case 1:
2403 pmt->es[idx].type = VIDEO_MPEG1;
2404 break;
2405 case 2:
2406 pmt->es[idx].type = VIDEO_MPEG2;
2407 break;
2408 case 3:
2409 case 4:
2410 pmt->es[idx].type = AUDIO_MP2;
2411 break;
2412 case 6:
2413 if(pmt->es[idx].type == 0x6) //this could have been ovrwritten by parse_descriptors
2414 pmt->es[idx].type = UNKNOWN;
2415 break;
2416 case 0x10:
2417 pmt->es[idx].type = VIDEO_MPEG4;
2418 break;
2419 case 0x0f:
2420 case 0x11:
2421 pmt->es[idx].type = AUDIO_AAC;
2422 break;
2423 case 0x1b:
2424 pmt->es[idx].type = VIDEO_H264;
2425 break;
2426 case 0x12:
2427 pmt->es[idx].type = SL_PES_STREAM;
2428 break;
2429 case 0x13:
2430 pmt->es[idx].type = SL_SECTION;
2431 break;
2432 case 0x81:
2433 pmt->es[idx].type = AUDIO_A52;
2434 break;
2435 case 0x8A:
2436 case 0x82:
2437 case 0x86:
2438 pmt->es[idx].type = AUDIO_DTS;
2439 break;
2440 case 0xEA:
2441 pmt->es[idx].type = VIDEO_VC1;
2442 break;
2443 default:
2444 mp_msg(MSGT_DEMUX, MSGL_DBG2, "UNKNOWN ES TYPE=0x%x\n", es_type);
2445 pmt->es[idx].type = UNKNOWN;
2446 }
2447
2448 tss = priv->ts.pids[es_pid]; //an ES stream
2449 if(tss == NULL)
2450 {
2451 tss = new_pid(priv, es_pid);
2452 if(tss)
2453 tss->type = pmt->es[idx].type;
2454 }
2455
2456 section_bytes -= 5 + pmt->es[idx].descr_length;
2457 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",
2458 progid, idx, es_count, pmt->es[idx].pid, pmt->es[idx].pid, pmt->es[idx].type, pmt->es[idx].descr_length, section_bytes);
2459
2460
2461 es_base += 5 + pmt->es[idx].descr_length;
2462
2463 es_count++;
2464 }
2465
2466 mp_msg(MSGT_DEMUX, MSGL_V, "----------------------------\n");
2467 return 1;
2468 }
2469
2470 static pmt_t* pmt_of_pid(ts_priv_t *priv, int pid, mp4_decoder_config_t **mp4_dec)
2471 {
2472 int32_t i, j, k;
2473
2474 if(priv->pmt)
2475 {
2476 for(i = 0; i < priv->pmt_cnt; i++)
2477 {
2478 if(priv->pmt[i].es && priv->pmt[i].es_cnt)
2479 {
2480 for(j = 0; j < priv->pmt[i].es_cnt; j++)
2481 {
2482 if(priv->pmt[i].es[j].pid == pid)
2483 {
2484 //search mp4_es_id
2485 if(priv->pmt[i].es[j].mp4_es_id)
2486 {
2487 for(k = 0; k < priv->pmt[i].mp4es_cnt; k++)
2488 {
2489 if(priv->pmt[i].mp4es[k].id == priv->pmt[i].es[j].mp4_es_id)
2490 {
2491 *mp4_dec = &(priv->pmt[i].mp4es[k].decoder);
2492 break;
2493 }
2494 }
2495 }
2496
2497 return &(priv->pmt[i]);
2498 }
2499 }
2500 }
2501 }
2502 }
2503
2504 return NULL;
2505 }
2506
2507
2508 static inline int32_t pid_type_from_pmt(ts_priv_t *priv, int pid)
2509 {
2510 int32_t pmt_idx, pid_idx, i, j;
2511
2512 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2513
2514 if(pmt_idx != -1)
2515 {
2516 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2517 if(pid_idx != -1)
2518 return priv->pmt[pmt_idx].es[pid_idx].type;
2519 }
2520 //else
2521 //{
2522 for(i = 0; i < priv->pmt_cnt; i++)
2523 {
2524 pmt_t *pmt = &(priv->pmt[i]);
2525 for(j = 0; j < pmt->es_cnt; j++)
2526 if(pmt->es[j].pid == pid)
2527 return pmt->es[j].type;
2528 }
2529 //}
2530
2531 return UNKNOWN;
2532 }
2533
2534
2535 static inline uint8_t *pid_lang_from_pmt(ts_priv_t *priv, int pid)
2536 {
2537 int32_t pmt_idx, pid_idx, i, j;
2538
2539 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2540
2541 if(pmt_idx != -1)
2542 {
2543 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2544 if(pid_idx != -1)
2545 return priv->pmt[pmt_idx].es[pid_idx].lang;
2546 }
2547 else
2548 {
2549 for(i = 0; i < priv->pmt_cnt; i++)
2550 {
2551 pmt_t *pmt = &(priv->pmt[i]);
2552 for(j = 0; j < pmt->es_cnt; j++)
2553 if(pmt->es[j].pid == pid)
2554 return pmt->es[j].lang;
2555 }
2556 }
2557
2558 return NULL;
2559 }
2560
2561
2562 static int fill_packet(demuxer_t *demuxer, demux_stream_t *ds, demux_packet_t **dp, int *dp_offset, TS_stream_info *si)
2563 {
2564 int ret = 0;
2565
2566 if((*dp != NULL) && (*dp_offset > 0))
2567 {
2568 ret = *dp_offset;
2569 resize_demux_packet(*dp, ret); //shrinked to the right size
2570 ds_add_packet(ds, *dp);
2571 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);
2572 if(si)
2573 {
2574 float diff = (*dp)->pts - si->last_pts;
2575 float dur;
2576
2577 if(abs(diff) > 1) //1 second, there's a discontinuity
2578 {
2579 si->duration += si->last_pts - si->first_pts;
2580 si->first_pts = si->last_pts = (*dp)->pts;
2581 }
2582 else
2583 {
2584 si->last_pts = (*dp)->pts;
2585 }
2586 si->size += ret;
2587 dur = si->duration + (si->last_pts - si->first_pts);
2588
2589 if(dur > 0 && ds == demuxer->video)
2590 {
2591 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2592 if(dur > 1) //otherwise it may be unreliable
2593 priv->vbitrate = (uint32_t) ((float) si->size / dur);
2594 }
2595 }
2596 }
2597
2598 *dp = NULL;
2599 *dp_offset = 0;
2600
2601 return ret;
2602 }
2603
2604 static int fill_extradata(mp4_decoder_config_t * mp4_dec, ES_stream_t *tss)
2605 {
2606 uint8_t *tmp;
2607
2608 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4_dec: %p, pid: %d\n", mp4_dec, tss->pid);
2609
2610 if(mp4_dec->buf_size > tss->extradata_alloc)
2611 {
2612 tmp = (uint8_t *) realloc(tss->extradata, mp4_dec->buf_size);
2613 if(!tmp)
2614 return 0;
2615 tss->extradata = tmp;
2616 tss->extradata_alloc = mp4_dec->buf_size;
2617 }
2618 memcpy(tss->extradata, mp4_dec->buf, mp4_dec->buf_size);
2619 tss->extradata_len = mp4_dec->buf_size;
2620 mp_msg(MSGT_DEMUX, MSGL_V, "EXTRADATA: %p, alloc=%d, len=%d\n", tss->extradata, tss->extradata_alloc, tss->extradata_len);
2621
2622 return tss->extradata_len;
2623 }
2624
2625 // 0 = EOF or no stream found
2626 // else = [-] number of bytes written to the packet
2627 static int ts_parse(demuxer_t *demuxer , ES_stream_t *es, unsigned char *packet, int probe)
2628 {
2629 ES_stream_t *tss;
2630 uint8_t done = 0;
2631 int buf_size, is_start, pid, base;
2632 int len, cc, cc_ok, afc, retv = 0, is_video, is_audio, is_sub;
2633 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2634 stream_t *stream = demuxer->stream;
2635 char *p;
2636 demux_stream_t *ds = NULL;
2637 demux_packet_t **dp = NULL;
2638 int *dp_offset = 0, *buffer_size = 0;
2639 int32_t progid, pid_type, bad, ts_error;
2640 int junk = 0, rap_flag = 0;
2641 pmt_t *pmt;
2642 mp4_decoder_config_t *mp4_dec;
2643 TS_stream_info *si;
2644
2645
2646 while(! done)
2647 {
2648 bad = ts_error = 0;
2649 ds = (demux_stream_t*) NULL;
2650 dp = (demux_packet_t **) NULL;
2651 dp_offset = buffer_size = NULL;
2652 rap_flag = 0;
2653 mp4_dec = NULL;
2654 es->is_synced = 0;
2655 si = NULL;
2656
2657 junk = priv->ts.packet_size - TS_PACKET_SIZE;
2658 buf_size = priv->ts.packet_size - junk;
2659
2660 if(stream_eof(stream))
2661 {
2662 if(! probe)
2663 {
2664 ts_dump_streams(priv);
2665 demuxer->filepos = stream_tell(demuxer->stream);
2666 }
2667
2668 return 0;
2669 }
2670
2671
2672 if(! ts_sync(stream))
2673 {
2674 mp_msg(MSGT_DEMUX, MSGL_INFO, "TS_PARSE: COULDN'T SYNC\n");
2675 return 0;
2676 }
2677
2678 len = stream_read(stream, &packet[1], 3);
2679 if (len != 3)
2680 return 0;
2681 buf_size -= 4;
2682
2683 if((packet[1] >> 7) & 0x01) //transport error
2684 ts_error = 1;
2685
2686
2687 is_start = packet[1] & 0x40;
2688 pid = ((packet[1] & 0x1f) << 8) | packet[2];
2689
2690 tss = priv->ts.pids[pid]; //an ES stream
2691 if(tss == NULL)
2692 {
2693 tss = new_pid(priv, pid);
2694 if(tss == NULL)
2695 continue;
2696 }
2697
2698 cc = (packet[3] & 0xf);
2699 cc_ok = (tss->last_cc < 0) || ((((tss->last_cc + 1) & 0x0f) == cc));
2700 tss->last_cc = cc;
2701
2702 bad = ts_error; // || (! cc_ok);
2703 if(bad)
2704 {
2705 if(priv->keep_broken == 0)
2706 {
2707 stream_skip(stream, buf_size-1+junk);
2708 continue;
2709 }
2710
2711 is_start = 0; //queued to the packet data
2712 }
2713
2714 if(is_start)
2715 tss->is_synced = 1;
2716
2717 if((!is_start && !tss->is_synced) || ((pid > 1) && (pid < 16)) || (pid == 8191)) //invalid pid
2718 {
2719 stream_skip(stream, buf_size-1+junk);
2720 continue;
2721 }
2722
2723
2724 afc = (packet[3] >> 4) & 3;
2725 if(! (afc % 2)) //no payload in this TS packet
2726 {
2727 stream_skip(stream, buf_size-1+junk);
2728 continue;
2729 }
2730
2731 if(afc > 1)
2732 {
2733 int c;
2734 c = stream_read_char(stream);
2735 buf_size--;
2736 if(c < 0 || c > 183) //broken from the stream layer or invalid
2737 {
2738 stream_skip(stream, buf_size-1+junk);
2739 continue;
2740 }
2741
2742 //c==0 is allowed!
2743 if(c > 0)
2744 {
2745 uint8_t pcrbuf[188];
2746 int flags = stream_read_char(stream);
2747 int has_pcr;
2748 rap_flag = (flags & 0x40) >> 6;
2749 has_pcr = flags & 0x10;
2750
2751 buf_size--;
2752 c--;
2753 stream_read(stream, pcrbuf, c);
2754
2755 if(has_pcr)
2756 {
2757 int pcr_pid = prog_pcr_pid(priv, priv->prog);
2758 if(pcr_pid == pid)
2759 {
2760 uint64_t pcr, pcr_ext;
2761
2762 pcr = (int64_t)(pcrbuf[0]) << 25;
2763 pcr |= pcrbuf[1] << 17 ;
2764 pcr |= (pcrbuf[2]) << 9;
2765 pcr |= pcrbuf[3] << 1 ;
2766 pcr |= (pcrbuf[4] & 0x80) >> 7;
2767
2768 pcr_ext = (pcrbuf[4] & 0x01) << 8;
2769 pcr_ext |= pcrbuf[5];
2770
2771 pcr = pcr * 300 + pcr_ext;
2772
2773 demuxer->reference_clock = (double)pcr/(double)27000000.0;
2774 }
2775 }
2776
2777 buf_size -= c;
2778 if(buf_size == 0)
2779 continue;
2780 }
2781 }
2782
2783 //find the program that the pid belongs to; if (it's the right one or -1) && pid_type==SL_SECTION
2784 //call parse_sl_section()
2785 pmt = pmt_of_pid(priv, pid, &mp4_dec);
2786 if(mp4_dec)
2787 {
2788 fill_extradata(mp4_dec, tss);
2789 if(IS_VIDEO(mp4_dec->object_type) || IS_AUDIO(mp4_dec->object_type))
2790 {
2791 tss->type = SL_PES_STREAM;
2792 tss->subtype = mp4_dec->object_type;
2793 }
2794 }
2795
2796
2797 //TABLE PARSING
2798
2799 base = priv->ts.packet_size - buf_size;
2800
2801 priv->last_pid = pid;
2802
2803 is_video = IS_VIDEO(tss->type) || (tss->type==SL_PES_STREAM && IS_VIDEO(tss->subtype));
2804 is_audio = IS_AUDIO(tss->type) || (tss->type==SL_PES_STREAM && IS_AUDIO(tss->subtype)) || (tss->type == PES_PRIVATE1);
2805 is_sub = ((tss->type == SPU_DVD) || (tss->type == SPU_DVB));
2806 pid_type = pid_type_from_pmt(priv, pid);
2807
2808 // PES CONTENT STARTS HERE
2809 if(! probe)
2810 {
2811 if((is_video || is_audio) && is_start && !priv->ts.streams[pid].sh)
2812 ts_add_stream(demuxer, tss);
2813
2814 if((pid == demuxer->sub->id)) //or the lang is right
2815 {
2816 pid_type = SPU_DVD;
2817 }
2818
2819 if(is_video && (demuxer->video->id == priv->ts.streams[pid].id))
2820 {
2821 ds = demuxer->video;
2822
2823 dp = &priv->fifo[1].pack;
2824 dp_offset = &priv->fifo[1].offset;
2825 buffer_size = &priv->fifo[1].buffer_size;
2826 si = &priv->vstr;
2827 }
2828 else if(is_audio && (demuxer->audio->id == priv->ts.streams[pid].id))
2829 {
2830 ds = demuxer->audio;
2831
2832 dp = &priv->fifo[0].pack;
2833 dp_offset = &priv->fifo[0].offset;
2834 buffer_size = &priv->fifo[0].buffer_size;
2835 si = &priv->astr;
2836 }
2837 else if(is_sub
2838 || (pid_type == SPU_DVD) || (pid_type == SPU_DVB))
2839 {
2840 //SUBS are infrequent, so the initial detection may fail
2841 // and we may need to add them at play-time
2842 if(demuxer->sub->id == -1)
2843 {
2844 uint16_t p;
2845 p = progid_for_pid(priv, tss->pid, priv->prog);
2846
2847 if(p == priv->prog)
2848 {
2849 int asgn = 0;
2850 uint8_t *lang;
2851
2852 if(dvdsub_lang)
2853 {
2854 if ((lang = pid_lang_from_pmt(priv, pid)))
2855 asgn = (strncmp(lang, dvdsub_lang, 3) == 0);
2856 }
2857 else //no language specified with -slang
2858 asgn = 1;
2859
2860 if(asgn)
2861 {
2862 demuxer->sub->id = tss->pid;
2863 mp_msg(MSGT_DEMUX, MSGL_INFO, "CHOSEN SUBs pid 0x%x (%d) FROM PROG %d\n", tss->pid, tss->pid, priv->prog);
2864 }
2865 }
2866 }
2867
2868 if(demuxer->sub->id == tss->pid)
2869 {
2870 ds = demuxer->sub;
2871
2872 dp = &priv->fifo[2].pack;
2873 dp_offset = &priv->fifo[2].offset;
2874 buffer_size = &priv->fifo[2].buffer_size;
2875 }
2876 else
2877 {
2878 stream_skip(stream, buf_size+junk);
2879 continue;
2880 }
2881 }
2882
2883 //IS IT TIME TO QUEUE DATA to the dp_packet?
2884 if(is_start && (dp != NULL))
2885 {
2886 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
2887 }
2888
2889
2890 if(dp && *dp == NULL)
2891 {
2892 if(*buffer_size > MAX_PACK_BYTES)
2893 *buffer_size = MAX_PACK_BYTES;
2894 *dp = new_demux_packet(*buffer_size); //es->size
2895 *dp_offset = 0;
2896 if(! *dp)
2897 {
2898 fprintf(stderr, "fill_buffer, NEW_ADD_PACKET(%d)FAILED\n", *buffer_size);
2899 continue;
2900 }
2901 mp_msg(MSGT_DEMUX, MSGL_DBG2, "CREATED DP(%d)\n", *buffer_size);
2902 }
2903 }
2904
2905
2906 if(probe || !dp) //dp is NULL for tables and sections
2907 {
2908 p = &packet[base];
2909 }
2910 else //feeding
2911 {
2912 if(*dp_offset + buf_size > *buffer_size)
2913 {
2914 *buffer_size = *dp_offset + buf_size + TS_FEC_PACKET_SIZE;
2915 resize_demux_packet(*dp, *buffer_size);
2916 }
2917 p = &((*dp)->buffer[*dp_offset]);
2918 }
2919
2920 len = stream_read(stream, p, buf_size);
2921 if(len < buf_size)
2922 {
2923 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\r\nts_parse() couldn't read enough data: %d < %d\r\n", len, buf_size);
2924 continue;
2925 }
2926 stream_skip(stream, junk);
2927
2928 if(pid == 0)
2929 {
2930 parse_pat(priv, is_start, p, buf_size);
2931 continue;
2932 }
2933 else if((tss->type == SL_SECTION) && pmt)
2934 {
2935 int k, mp4_es_id = -1;
2936 ts_section_t *section;
2937 for(k = 0; k < pmt->mp4es_cnt; k++)
2938 {
2939 if(pmt->mp4es[k].decoder.object_type == MP4_OD && pmt->mp4es[k].decoder.stream_type == MP4_OD)
2940 mp4_es_id = pmt->mp4es[k].id;
2941 }
2942 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4ESID: %d\n", mp4_es_id);
2943 for(k = 0; k < pmt->es_cnt; k++)
2944 {
2945 if(pmt->es[k].mp4_es_id == mp4_es_id)
2946 {
2947 section = &(tss->section);
2948 parse_sl_section(pmt, section, is_start, &packet[base], buf_size);
2949 }
2950 }
2951 continue;
2952 }
2953 else
2954 {
2955 progid = prog_id_in_pat(priv, pid);
2956 if(progid != -1)
2957 {
2958 if(pid != demuxer->video->id && pid != demuxer->audio->id && pid != demuxer->sub->id)
2959 {
2960 parse_pmt(priv, progid, pid, is_start, &packet[base], buf_size);
2961 continue;
2962 }
2963 else
2964 mp_msg(MSGT_DEMUX, MSGL_ERR, "Argh! Data pid %d used in the PMT, Skipping PMT parsing!\n", pid);
2965 }
2966 }
2967
2968 if(!probe && !dp)
2969 continue;
2970
2971 if(is_start)
2972 {
2973 uint8_t *lang = NULL;
2974
2975 mp_msg(MSGT_DEMUX, MSGL_DBG2, "IS_START\n");
2976
2977 len = pes_parse2(p, buf_size, es, pid_type, pmt, pid);
2978 if(! len)
2979 {
2980 tss->is_synced = 0;
2981 continue;
2982 }
2983 es->pid = tss->pid;
2984 tss->is_synced |= es->is_synced || rap_flag;
2985 tss->payload_size = es->payload_size;
2986
2987 if(is_audio && (lang = pid_lang_from_pmt(priv, es->pid)))
2988 {
2989 memcpy(es->lang, lang, 3);
2990 es->lang[3] = 0;
2991 }
2992 else
2993 es->lang[0] = 0;
2994
2995 if(probe)
2996 {
2997 if(es->type == UNKNOWN)
2998 return 0;
2999
3000 tss->type = es->type;
3001 tss->subtype = es->subtype;
3002
3003 return 1;
3004 }
3005 else
3006 {
3007 if(es->pts == 0.0f)
3008 es->pts = tss->pts = tss->last_pts;
3009 else
3010 tss->pts = tss->last_pts = es->pts;
3011
3012 mp_msg(MSGT_DEMUX, MSGL_DBG2, "ts_parse, NEW pid=%d, PSIZE: %u, type=%X, start=%p, len=%d\n",
3013 es->pid, es->payload_size, es->type, es->start, es->size);
3014
3015 demuxer->filepos = stream_tell(demuxer->stream) - es->size;
3016
3017 memmove(p, es->start, es->size);
3018 *dp_offset += es->size;
3019 (*dp)->flags = 0;
3020 (*dp)->pos = stream_tell(demuxer->stream);
3021 (*dp)->pts = es->pts;
3022
3023 if(retv > 0)
3024 return retv;
3025 else
3026 continue;
3027 }
3028 }
3029 else
3030 {
3031 uint16_t sz;
3032
3033 es->pid = tss->pid;
3034 es->type = tss->type;
3035 es->subtype = tss->subtype;
3036 es->pts = tss->pts = tss->last_pts;
3037 es->start = &packet[base];
3038
3039
3040 if(tss->payload_size > 0)
3041 {
3042 sz = FFMIN(tss->payload_size, buf_size);
3043 tss->payload_size -= sz;
3044 es->size = sz;
3045 }
3046 else
3047 {
3048 if(is_video)
3049 {
3050 sz = es->size = buf_size;
3051 }
3052 else
3053 {
3054 continue;
3055 }
3056 }
3057
3058
3059 if(! probe)
3060 {
3061 *dp_offset += sz;
3062
3063 if(*dp_offset >= MAX_PACK_BYTES)
3064 {
3065 (*dp)->pts = tss->last_pts;
3066 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
3067 return 1;
3068 }
3069
3070 continue;
3071 }
3072 else
3073 {
3074 memcpy(es->start, p, sz);
3075
3076 if(es->size)
3077 return es->size;
3078 else
3079 continue;
3080 }
3081 }
3082 }
3083
3084 return 0;
3085 }
3086
3087
3088 extern void skip_audio_frame(sh_audio_t *sh_audio);
3089
3090 static void reset_fifos(demuxer_t *demuxer, int a, int v, int s)
3091 {
3092 ts_priv_t* priv = demuxer->priv;
3093 if(a)
3094 {
3095 if(priv->fifo[0].pack != NULL)
3096 {
3097 free_demux_packet(priv->fifo[0].pack);
3098 priv->fifo[0].pack = NULL;
3099 }
3100 priv->fifo[0].offset = 0;
3101 }
3102
3103 if(v)
3104 {
3105 if(priv->fifo[1].pack != NULL)
3106 {
3107 free_demux_packet(priv->fifo[1].pack);
3108 priv->fifo[1].pack = NULL;
3109 }
3110 priv->fifo[1].offset = 0;
3111 }
3112
3113 if(s)
3114 {
3115 if(priv->fifo[2].pack != NULL)
3116 {
3117 free_demux_packet(priv->fifo[2].pack);
3118 priv->fifo[2].pack = NULL;
3119 }
3120 priv->fifo[2].offset = 0;
3121 }
3122 demuxer->reference_clock = MP_NOPTS_VALUE;
3123 }
3124
3125
3126 static void demux_seek_ts(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
3127 {
3128 demux_stream_t *d_audio=demuxer->audio;
3129 demux_stream_t *d_video=demuxer->video;
3130 sh_audio_t *sh_audio=d_audio->sh;
3131 sh_video_t *sh_video=d_video->sh;
3132 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
3133 int i, video_stats;
3134 off_t newpos;
3135
3136 //================= seek in MPEG-TS ==========================
3137
3138 ts_dump_streams(demuxer->priv);
3139 reset_fifos(demuxer, sh_audio != NULL, sh_video != NULL, demuxer->sub->id > 0);
3140
3141 demux_flush(demuxer);
3142
3143
3144
3145 video_stats = (sh_video != NULL);
3146 if(video_stats)
3147 {
3148 mp_msg(MSGT_DEMUX, MSGL_V, "IBPS: %d, vb: %d\r\n", sh_video->i_bps, priv->vbitrate);
3149 if(priv->vbitrate)
3150 video_stats = priv->vbitrate;
3151 else
3152 video_stats = sh_video->i_bps;
3153 }
3154
3155 newpos = (flags & SEEK_ABSOLUTE) ? demuxer->movi_start : demuxer->filepos;
3156 if(flags & SEEK_FACTOR) // float seek 0..1
3157 newpos+=(demuxer->movi_end-demuxer->movi_start)*rel_seek_secs;
3158 else
3159 {
3160 // time seek (secs)
3161 if(! video_stats) // unspecified or VBR
3162 newpos += 2324*75*rel_seek_secs; // 174.3 kbyte/sec
3163 else
3164 newpos += video_stats*rel_seek_secs;
3165 }
3166
3167
3168 if(newpos < demuxer->movi_start)
3169 newpos = demuxer->movi_start; //begininng of stream
3170
3171 stream_seek(demuxer->stream, newpos);
3172 for(i = 0; i < 8192; i++)
3173 if(priv->ts.pids[i] != NULL)
3174 priv->ts.pids[i]->is_synced = 0;
3175
3176 videobuf_code_len = 0;
3177
3178 if(sh_video != NULL)
3179 ds_fill_buffer(d_video);
3180
3181 if(sh_audio != NULL)
3182 {
3183 ds_fill_buffer(d_audio);
3184 }
3185
3186 while(sh_video != NULL)
3187 {
3188 if(sh_audio && !d_audio->eof && d_video->pts && d_audio->pts)
3189 {
3190 float a_pts=d_audio->pts;
3191 a_pts+=(ds_tell_pts(d_audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
3192 if(d_video->pts > a_pts)
3193 {
3194 skip_audio_frame(sh_audio); // sync audio
3195 continue;
3196 }
3197 }
3198
3199
3200 i = sync_video_packet(d_video);
3201 if((sh_video->format == VIDEO_MPEG1) || (sh_video->format == VIDEO_MPEG2))
3202 {
3203 if(i==0x1B3 || i==0x1B8) break; // found it!
3204 }
3205 else if((sh_video->format == VIDEO_MPEG4) && (i==0x1B6))
3206 break;
3207 else if(sh_video->format == VIDEO_VC1 && (i==0x10E || i==0x10F))
3208 break;
3209 else //H264
3210 {
3211 if((i & ~0x60) == 0x105 || (i & ~0x60) == 0x107) break;
3212 }
3213
3214 if(!i || !skip_video_packet(d_video)) break; // EOF?
3215 }
3216 }
3217
3218
3219 static int demux_ts_fill_buffer(demuxer_t * demuxer, demux_stream_t *ds)
3220 {
3221 ES_stream_t es;
3222 ts_priv_t *priv = (ts_priv_t *)demuxer->priv;
3223
3224 return -ts_parse(demuxer, &es, priv->packet, 0);
3225 }
3226
3227
3228 static int ts_check_file_dmx(demuxer_t *demuxer)
3229 {
3230 return ts_check_file(demuxer) ? DEMUXER_TYPE_MPEG_TS : 0;
3231 }
3232
3233 static int is_usable_program(ts_priv_t *priv, pmt_t *pmt)
3234 {
3235 int j;
3236
3237 for(j = 0; j < pmt->es_cnt; j++)
3238 {
3239 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3240 continue;
3241 if(
3242 priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO ||
3243 priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO
3244 )
3245 return 1;
3246 }
3247
3248 return 0;
3249 }
3250
3251 static int demux_ts_control(demuxer_t *demuxer, int cmd, void *arg)
3252 {
3253 ts_priv_t* priv = (ts_priv_t *)demuxer->priv;
3254
3255 switch(cmd)
3256 {
3257 case DEMUXER_CTRL_SWITCH_AUDIO:
3258 case DEMUXER_CTRL_SWITCH_VIDEO:
3259 {
3260 void *sh = NULL;
3261 int i, n;
3262 int reftype, areset = 0, vreset = 0;
3263 demux_stream_t *ds;
3264
3265 if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
3266 {
3267 reftype = TYPE_VIDEO;
3268 ds = demuxer->video;
3269 vreset = 1;
3270 }
3271 else
3272 {
3273 reftype = TYPE_AUDIO;
3274 ds = demuxer->audio;
3275 areset = 1;
3276 }
3277 n = *((int*)arg);
3278 if(n == -2)
3279 {
3280 reset_fifos(demuxer, areset, vreset, 0);
3281 ds->id = -2;
3282 ds->sh = NULL;
3283 ds_free_packs(ds);
3284 *((int*)arg) = ds->id;
3285 return DEMUXER_CTRL_OK;
3286 }
3287
3288 if(n < 0)
3289 {
3290 for(i = 0; i < 8192; i++)
3291 {
3292 if(priv->ts.streams[i].id == ds->id && priv->ts.streams[i].type == reftype)
3293 break;
3294 }
3295
3296 while(!sh)
3297 {
3298 i = (i+1) % 8192;
3299 if(priv->ts.streams[i].type == reftype)
3300 {
3301 if(priv->ts.streams[i].id == ds->id) //we made a complete loop
3302 break;
3303 sh = priv->ts.streams[i].sh;
3304 }
3305 }
3306 }
3307 else //audio track <n>
3308 {
3309 for(i = 0; i < 8192; i++)
3310 {
3311 if(priv->ts.streams[i].id == n && priv->ts.streams[i].type == reftype)
3312 {
3313 sh = priv->ts.streams[i].sh;
3314 break;
3315 }
3316 }
3317 }
3318
3319 if(sh)
3320 {
3321 if(ds->id != priv->ts.streams[i].id)
3322 reset_fifos(demuxer, areset, vreset, 0);
3323 ds->id = priv->ts.streams[i].id;
3324 ds->sh = sh;
3325 ds_free_packs(ds);
3326 mp_msg(MSGT_DEMUX, MSGL_V, "\r\ndemux_ts, switched to audio pid %d, id: %d, sh: %p\r\n", i, ds->id, sh);
3327 }
3328
3329 *((int*)arg) = ds->id;
3330 return DEMUXER_CTRL_OK;
3331 }
3332
3333 case DEMUXER_CTRL_IDENTIFY_PROGRAM: //returns in prog->{aid,vid} the new ids that comprise a program
3334 {
3335 int i, j, cnt=0;
3336 int vid_done=0, aid_done=0;
3337 pmt_t *pmt = NULL;
3338 demux_program_t *prog = arg;
3339
3340 if(priv->pmt_cnt < 2)
3341 return DEMUXER_CTRL_NOTIMPL;
3342
3343 if(prog->progid == -1)
3344 {
3345 int cur_pmt_idx = 0;
3346
3347 for(i = 0; i < priv->pmt_cnt; i++)
3348 if(priv->pmt[i].progid == priv->prog)
3349 {
3350 cur_pmt_idx = i;
3351 break;
3352 }
3353
3354 i = (cur_pmt_idx + 1) % priv->pmt_cnt;
3355 while(i != cur_pmt_idx)
3356 {
3357 pmt = &priv->pmt[i];
3358 cnt = is_usable_program(priv, pmt);
3359 if(cnt)
3360 break;
3361 i = (i + 1) % priv->pmt_cnt;
3362 }
3363 }
3364 else
3365 {
3366 for(i = 0; i < priv->pmt_cnt; i++)
3367 if(priv->pmt[i].progid == prog->progid)
3368 {
3369 pmt = &priv->pmt[i]; //required program
3370 cnt = is_usable_program(priv, pmt);
3371 }
3372 }
3373
3374 if(!cnt)
3375 return DEMUXER_CTRL_NOTIMPL;
3376
3377 //finally some food
3378 prog->aid = prog->vid = -2; //no audio and no video by default
3379 for(j = 0; j < pmt->es_cnt; j++)
3380 {
3381 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3382 continue;
3383
3384 if(!vid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO)
3385 {
3386 vid_done = 1;
3387 prog->vid = priv->ts.streams[pmt->es[j].pid].id;
3388 }
3389 else if(!aid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO)
3390 {
3391 aid_done = 1;
3392 prog->aid = priv->ts.streams[pmt->es[j].pid].id;
3393 }
3394 }
3395
3396 priv->prog = prog->progid = pmt->progid;
3397 return DEMUXER_CTRL_OK;
3398 }
3399
3400 default:
3401 return DEMUXER_CTRL_NOTIMPL;
3402 }
3403 }
3404
3405
3406 const demuxer_desc_t demuxer_desc_mpeg_ts = {
3407 "MPEG-TS demuxer",
3408 "mpegts",
3409 "TS",
3410 "Nico Sabbi",
3411 "",
3412 DEMUXER_TYPE_MPEG_TS,
3413 0, // unsafe autodetect
3414 ts_check_file_dmx,
3415 demux_ts_fill_buffer,
3416 demux_open_ts,
3417 demux_close_ts,
3418 demux_seek_ts,
3419 demux_ts_control
3420 };