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core: Set mpctx->chapters to NULL at uninit
[mplayer.git] / libmpdemux / demux_mpg.c
blob489821f878f222f8df2b9ad74f870ec15befdd6e
1 // MPG/VOB file parser for DEMUXER v2.5 by A'rpi/ESP-team
2
3 #include <stdio.h>
4 #include <stdlib.h>
5 #include <unistd.h>
6 #include <math.h>
7
8 #include "config.h"
9 #include "mp_msg.h"
10 #include "help_mp.h"
11
12 #include "stream/stream.h"
13 #include "demuxer.h"
14 #include "parse_es.h"
15 #include "stheader.h"
16 #include "mp3_hdr.h"
17
18 //#define MAX_PS_PACKETSIZE 2048
19 #define MAX_PS_PACKETSIZE (224*1024)
20
21 #define UNKNOWN 0
22 #define VIDEO_MPEG1 0x10000001
23 #define VIDEO_MPEG2 0x10000002
24 #define VIDEO_MPEG4 0x10000004
25 #define VIDEO_H264 0x10000005
26 #define AUDIO_MP2 0x50
27 #define AUDIO_A52 0x2000
28 #define AUDIO_LPCM_BE 0x10001
29 #define AUDIO_AAC mmioFOURCC('M', 'P', '4', 'A')
30
31 typedef struct mpg_demuxer {
32 float last_pts;
33 float first_pts; // first pts found in stream
34 float first_to_final_pts_len; // difference between final pts and first pts
35 int has_valid_timestamps; // !=0 iff time stamps look linear
36 // (not necessarily starting with 0)
37 unsigned int es_map[0x40]; //es map of stream types (associated to the pes id) from 0xb0 to 0xef
38 int num_a_streams;
39 int a_stream_ids[MAX_A_STREAMS];
40 } mpg_demuxer_t;
41
42 extern char* dvdsub_lang;
43 static int mpeg_pts_error=0;
44 off_t ps_probe = 0;
45
46 static int parse_psm(demuxer_t *demux, int len) {
47 unsigned char c, id, type;
48 unsigned int plen, prog_len, es_map_len;
49 mpg_demuxer_t *priv = (mpg_demuxer_t *) demux->priv;
50
51 mp_dbg(MSGT_DEMUX,MSGL_V, "PARSE_PSM, len=%d\n", len);
52 if(! len || len > 1018)
53 return 0;
54
55 c = stream_read_char(demux->stream);
56 if(! (c & 0x80)) {
57 stream_skip(demux->stream, len - 1); //not yet valid, discard
58 return 0;
59 }
60 stream_skip(demux->stream, 1);
61 prog_len = stream_read_word(demux->stream); //length of program descriptors
62 stream_skip(demux->stream, prog_len); //.. that we ignore
63 es_map_len = stream_read_word(demux->stream); //length of elementary streams map
64 es_map_len = FFMIN(es_map_len, len - prog_len - 8); //sanity check
65 while(es_map_len > 0) {
66 type = stream_read_char(demux->stream);
67 id = stream_read_char(demux->stream);
68 if(id >= 0xB0 && id <= 0xEF && priv) {
69 int idoffset = id - 0xB0;
70 switch(type) {
71 case 0x1:
72 priv->es_map[idoffset] = VIDEO_MPEG1;
73 break;
74 case 0x2:
75 priv->es_map[idoffset] = VIDEO_MPEG2;
76 break;
77 case 0x3:
78 case 0x4:
79 priv->es_map[idoffset] = AUDIO_MP2;
80 break;
81 case 0x0f:
82 case 0x11:
83 priv->es_map[idoffset] = AUDIO_AAC;
84 break;
85 case 0x10:
86 priv->es_map[idoffset] = VIDEO_MPEG4;
87 break;
88 case 0x1b:
89 priv->es_map[idoffset] = VIDEO_H264;
90 break;
91 case 0x81:
92 priv->es_map[idoffset] = AUDIO_A52;
93 break;
94 }
95 mp_dbg(MSGT_DEMUX,MSGL_V, "PSM ES, id=0x%x, type=%x, stype: %x\n", id, type, priv->es_map[idoffset]);
96 }
97 plen = stream_read_word(demux->stream); //length of elementary stream descriptors
98 plen = FFMIN(plen, es_map_len); //sanity check
99 stream_skip(demux->stream, plen); //skip descriptors for now
100 es_map_len -= 4 + plen;
101 }
102 stream_skip(demux->stream, 4); //skip crc32
103 return 1;
104 }
105
106 // 500000 is a wild guess
107 #define TIMESTAMP_PROBE_LEN 500000
108
109 //MAX_PTS_DIFF_FOR_CONSECUTIVE denotes the maximum difference
110 //between two pts to consider them consecutive
111 //1.0 is a wild guess
112 #define MAX_PTS_DIFF_FOR_CONSECUTIVE 1.0
113
114 //returns the first pts found within TIME_STAMP_PROBE_LEN bytes after stream_pos in demuxer's stream.
115 //if no pts is found or an error occurs, -1.0 is returned.
116 //Packs are freed.
117 static float read_first_mpeg_pts_at_position(demuxer_t* demuxer, off_t stream_pos)
118 {
119 stream_t *s = demuxer->stream;
120 mpg_demuxer_t *mpg_d = demuxer->priv;
121 float pts = -1.0; //the pts to return;
122 float found_pts1; //the most recently found pts
123 float found_pts2; //the pts found before found_pts1
124 float found_pts3; //the pts found before found_pts2
125 int found = 0;
126
127 if(!mpg_d || stream_pos < 0)
128 return pts;
129
130 found_pts3 = found_pts2 = found_pts1 = mpg_d->last_pts;
131 stream_seek(s, stream_pos);
132
133 //We look for pts.
134 //However, we do not stop at the first found one, as timestamps may reset
135 //Therefore, we seek until we found three consecutive
136 //pts within MAX_PTS_DIFF_FOR_CONSECUTIVE.
137
138 while(found<3 && !s->eof
139 && (fabsf(found_pts2-found_pts1) < MAX_PTS_DIFF_FOR_CONSECUTIVE)
140 && (fabsf(found_pts3-found_pts2) < MAX_PTS_DIFF_FOR_CONSECUTIVE)
141 && (stream_tell(s) < stream_pos + TIMESTAMP_PROBE_LEN)
142 && ds_fill_buffer(demuxer->video))
143 {
144 if(mpg_d->last_pts != found_pts1)
145 {
146 if(!found)
147 found_pts3 = found_pts2 = found_pts1 = mpg_d->last_pts; //the most recently found pts
148 else
149 {
150 found_pts3 = found_pts2;
151 found_pts2 = found_pts1;
152 found_pts1 = mpg_d->last_pts;
153 }
154 found++;
155 }
156 }
157
158 if(found == 3) pts = found_pts3;
159
160 //clean up from searching of first pts;
161 demux_flush(demuxer);
162
163 return pts;
164 }
165
166 /// Open an mpg physical stream
167 static demuxer_t* demux_mpg_open(demuxer_t* demuxer) {
168 stream_t *s = demuxer->stream;
169 mpg_demuxer_t* mpg_d;
170
171 if (!ds_fill_buffer(demuxer->video)) return 0;
172 mpg_d = calloc(1,sizeof(mpg_demuxer_t));
173 if(mpg_d)
174 {
175 demuxer->priv = mpg_d;
176 mpg_d->last_pts = -1.0;
177 mpg_d->first_pts = -1.0;
178
179 //if seeking is allowed set has_valid_timestamps if appropriate
180 if(demuxer->seekable
181 && (demuxer->stream->type == STREAMTYPE_FILE
182 || demuxer->stream->type == STREAMTYPE_VCD)
183 && demuxer->movi_start != demuxer-> movi_end
184 )
185 {
186 //We seek to the beginning of the stream, to somewhere in the
187 //middle, and to the end of the stream, while remembering the pts
188 //at each of the three positions. With these pts, we check whether
189 //or not the pts are "linear enough" to justify seeking by the pts
190 //of the stream
191
192 //The position where the stream is now
193 off_t pos = stream_tell(s);
194 float first_pts = read_first_mpeg_pts_at_position(demuxer, demuxer->movi_start);
195 if(first_pts != -1.0)
196 {
197 float middle_pts = read_first_mpeg_pts_at_position(demuxer, (demuxer->movi_end + demuxer->movi_start)/2);
198 if(middle_pts != -1.0)
199 {
200 float final_pts = read_first_mpeg_pts_at_position(demuxer, demuxer->movi_end - TIMESTAMP_PROBE_LEN);
201 if(final_pts != -1.0)
202 {
203 // found proper first, middle, and final pts.
204 float proportion = (middle_pts-first_pts==0) ? -1 : (final_pts-middle_pts)/(middle_pts-first_pts);
205 // if they are linear enough set has_valid_timestamps
206 if((0.5 < proportion) && (proportion < 2))
207 {
208 mpg_d->first_pts = first_pts;
209 mpg_d->first_to_final_pts_len = final_pts - first_pts;
210 mpg_d->has_valid_timestamps = 1;
211 }
212 }
213 }
214 }
215
216 //Cleaning up from seeking in stream
217 demuxer->stream->eof=0;
218 demuxer->video->eof=0;
219 demuxer->audio->eof=0;
220
221 stream_seek(s,pos);
222 ds_fill_buffer(demuxer->video);
223 } // if ( demuxer->seekable )
224 } // if ( mpg_d )
225 return demuxer;
226 }
227
228 static void demux_close_mpg(demuxer_t* demuxer) {
229 mpg_demuxer_t* mpg_d = demuxer->priv;
230 if (mpg_d) free(mpg_d);
231 }
232
233
234 static unsigned long long read_mpeg_timestamp(stream_t *s,int c){
235 unsigned int d,e;
236 unsigned long long pts;
237 d=stream_read_word(s);
238 e=stream_read_word(s);
239 if( ((c&1)!=1) || ((d&1)!=1) || ((e&1)!=1) ){
240 ++mpeg_pts_error;
241 return 0; // invalid pts
242 }
243 pts=(((uint64_t)((c>>1)&7))<<30)|((d>>1)<<15)|(e>>1);
244 mp_dbg(MSGT_DEMUX,MSGL_DBG3," pts {%"PRIu64"}",pts);
245 return pts;
246 }
247
248 static void new_audio_stream(demuxer_t *demux, int aid){
249 if(!demux->a_streams[aid]){
250 mpg_demuxer_t *mpg_d=(mpg_demuxer_t*)demux->priv;
251 sh_audio_t* sh_a;
252 new_sh_audio(demux,aid);
253 sh_a = (sh_audio_t*)demux->a_streams[aid];
254 switch(aid & 0xE0){ // 1110 0000 b (high 3 bit: type low 5: id)
255 case 0x00: sh_a->format=0x50;break; // mpeg
256 case 0xA0: sh_a->format=0x10001;break; // dvd pcm
257 case 0x80: if((aid & 0xF8) == 0x88) sh_a->format=0x2001;//dts
258 else sh_a->format=0x2000;break; // ac3
259 }
260 //evo files
261 if((aid & 0xC0) == 0xC0) sh_a->format=0x2000;
262 else if(aid >= 0x98 && aid <= 0x9f) sh_a->format=0x2001;
263 if (mpg_d) mpg_d->a_stream_ids[mpg_d->num_a_streams++] = aid;
264 }
265 if(demux->audio->id==-1) demux->audio->id=aid;
266 }
267
268 static int demux_mpg_read_packet(demuxer_t *demux,int id){
269 int d;
270 int len;
271 int set_pts=0; // !=0 iff pts has been set to a proper value
272 unsigned char c=0;
273 unsigned long long pts=0;
274 unsigned long long dts=0;
275 int l;
276 int pes_ext2_subid=-1;
277 double stream_pts = MP_NOPTS_VALUE;
278 demux_stream_t *ds=NULL;
279 demux_packet_t* dp;
280 mpg_demuxer_t *priv = (mpg_demuxer_t *) demux->priv;
281
282 mp_dbg(MSGT_DEMUX,MSGL_DBG3,"demux_read_packet: %X\n",id);
283
284 // if(id==0x1F0){
285 // demux->synced=0; // force resync after 0x1F0
286 // return -1;
287 //}
288
289 // if(id==0x1BA) packet_start_pos=stream_tell(demux->stream);
290 if((id<0x1BC || id>=0x1F0) && id != 0x1FD) return -1;
291 if(id==0x1BE) return -1; // padding stream
292 if(id==0x1BF) return -1; // private2
293
294 len=stream_read_word(demux->stream);
295 mp_dbg(MSGT_DEMUX,MSGL_DBG3,"PACKET len=%d",len);
296 // if(len==62480){ demux->synced=0;return -1;} /* :) */
297 if(len==0 || len>MAX_PS_PACKETSIZE){
298 mp_dbg(MSGT_DEMUX,MSGL_DBG2,"Invalid PS packet len: %d\n",len);
299 return -2; // invalid packet !!!!!!
300 }
301
302 mpeg_pts_error=0;
303
304 if(id==0x1BC) {
305 parse_psm(demux, len);
306 return 0;
307 }
308
309 while(len>0){ // Skip stuFFing bytes
310 c=stream_read_char(demux->stream);
311 --len;
312 if(c!=0xFF)break;
313 }
314 if((c>>6)==1){ // Read (skip) STD scale & size value
315 // printf(" STD_scale=%d",(c>>5)&1);
316 d=((c&0x1F)<<8)|stream_read_char(demux->stream);
317 len-=2;
318 // printf(" STD_size=%d",d);
319 c=stream_read_char(demux->stream);
320 }
321 // Read System-1 stream timestamps:
322 if((c>>4)==2){
323 pts=read_mpeg_timestamp(demux->stream,c);
324 set_pts=1;
325 len-=4;
326 } else
327 if((c>>4)==3){
328 pts=read_mpeg_timestamp(demux->stream,c);
329 c=stream_read_char(demux->stream);
330 if((c>>4)!=1) pts=0; //printf("{ERROR4}");
331 else set_pts = 1;
332 dts=read_mpeg_timestamp(demux->stream,c);
333 len-=4+1+4;
334 } else
335 if((c>>6)==2){
336 int pts_flags;
337 int hdrlen;
338 int parse_ext2;
339 // System-2 (.VOB) stream:
340 c=stream_read_char(demux->stream);
341 pts_flags=c>>6;
342 parse_ext2 = (id == 0x1FD) && ((c & 0x3F) == 1);
343 c=stream_read_char(demux->stream);
344 hdrlen=c;
345 len-=2;
346 mp_dbg(MSGT_DEMUX,MSGL_DBG3," hdrlen=%d (len=%d)",hdrlen,len);
347 if(hdrlen>len){ mp_msg(MSGT_DEMUX,MSGL_V,"demux_mpg: invalid header length \n"); return -1;}
348 if(pts_flags==2 && hdrlen>=5){
349 c=stream_read_char(demux->stream);
350 pts=read_mpeg_timestamp(demux->stream,c);
351 set_pts=1;
352 len-=5;hdrlen-=5;
353 } else
354 if(pts_flags==3 && hdrlen>=10){
355 c=stream_read_char(demux->stream);
356 pts=read_mpeg_timestamp(demux->stream,c);
357 set_pts=1;
358 c=stream_read_char(demux->stream);
359 dts=read_mpeg_timestamp(demux->stream,c);
360 len-=10;hdrlen-=10;
361 }
362 len-=hdrlen;
363 if(parse_ext2 && hdrlen>=3) {
364 c=stream_read_char(demux->stream);
365 hdrlen--;
366
367 if((c & 0x0F) != 0x0F) {
368 mp_msg(MSGT_DEMUX,MSGL_V,"demux_mpg: pes_extension_flag2 not set, discarding pes packet\n");
369 return -1;
370 }
371 if(c & 0x80) { //pes_private_data_flag
372 if(hdrlen<16) {
373 mp_msg(MSGT_DEMUX,MSGL_V,"demux_mpg: not enough pes_private_data bytes: %d < 16, discarding pes packet\n", hdrlen);
374 return -1;
375 }
376 stream_skip(demux->stream, 16);
377 hdrlen-=16;
378 }
379 if(c & 0x40) { //pack_header_field_flag
380 int l = stream_read_char(demux->stream);
381 if(l < 0) //couldn't read from the stream?
382 return -1;
383 hdrlen--;
384 if(l < 0 || hdrlen < l) {
385 mp_msg(MSGT_DEMUX,MSGL_V,"demux_mpg: not enough pack_header bytes: hdrlen: %d < skip: %d, discarding pes packet\n",
386 hdrlen, l);
387 return -1;
388 }
389 stream_skip(demux->stream, l);
390 hdrlen-=l;
391 }
392 if(c & 0x20) { //program_packet_sequence_counter_flag
393 if(hdrlen < 2) {
394 mp_msg(MSGT_DEMUX,MSGL_V,"demux_mpg: not enough program_packet bytes: hdrlen: %d, discarding pes packet\n", hdrlen);
395 return -1;
396 }
397 stream_skip(demux->stream, 2);
398 hdrlen-=2;
399 }
400 if(c & 0x10) {
401 //STD
402 stream_skip(demux->stream, 2);
403 hdrlen-=2;
404 }
405 c=stream_read_char(demux->stream); //pes_extension2 flag
406 hdrlen--;
407 if(c!=0x81) { mp_msg(MSGT_DEMUX,MSGL_V,"demux_mpg: unknown pes_extension2 format, len is > 1 \n"); return -1;}
408 c=stream_read_char(demux->stream); //pes_extension2 payload === substream id
409 hdrlen--;
410 if(c<0x55 || c>0x5F) { mp_msg(MSGT_DEMUX,MSGL_V,"demux_mpg: unknown vc1 substream_id: 0x%x \n", c); return -1;}
411 pes_ext2_subid=c;
412 }
413 if(hdrlen>0)
414 stream_skip(demux->stream,hdrlen); // skip header and stuffing bytes
415
416 if(id==0x1FD && pes_ext2_subid!=-1) {
417 //==== EVO VC1 STREAMS ===//
418 if(!demux->v_streams[pes_ext2_subid]) new_sh_video(demux,pes_ext2_subid);
419 if(demux->video->id==-1) demux->video->id=pes_ext2_subid;
420 if(demux->video->id==pes_ext2_subid){
421 ds=demux->video;
422 if(!ds->sh) ds->sh=demux->v_streams[pes_ext2_subid];
423 if(priv && ds->sh) {
424 sh_video_t *sh = (sh_video_t *)ds->sh;
425 sh->format = mmioFOURCC('W', 'V', 'C', '1');
426 }
427 }
428 }
429 //============== DVD Audio sub-stream ======================
430 if(id==0x1BD){
431 int aid, rawa52 = 0;
432 off_t tmppos;
433 unsigned int tmp;
434
435 tmppos = stream_tell(demux->stream);
436 tmp = stream_read_word(demux->stream);
437 stream_seek(demux->stream, tmppos);
438 /// vdr stores A52 without the 4 header bytes, so we have to check this condition first
439 if(tmp == 0x0B77) {
440 aid = 128;
441 rawa52 = 1;
442 }
443 else {
444 aid=stream_read_char(demux->stream);--len;
445 if(len<3) return -1; // invalid audio packet
446 }
447
448 // AID:
449 // 0x20..0x3F subtitle
450 // 0x80..0x87 and 0xC0..0xCF AC3 audio
451 // 0x88..0x8F and 0x98..0x9F DTS audio
452 // 0xA0..0xBF PCM audio
453
454 if((aid & 0xE0) == 0x20){
455 // subtitle:
456 aid&=0x1F;
457
458 if(!demux->s_streams[aid]){
459 sh_sub_t *sh = new_sh_sub(demux, aid);
460 if (sh) sh->type = 'v';
461 mp_msg(MSGT_DEMUX,MSGL_V,"==> Found subtitle: %d\n",aid);
462 }
463
464 if(demux->sub->id > -1)
465 demux->sub->id &= 0x1F;
466 if(!dvdsub_lang && demux->sub->id == -1)
467 demux->sub->id = aid;
468 if(demux->sub->id==aid){
469 ds=demux->sub;
470 }
471 } else if((aid >= 0x80 && aid <= 0x8F) || (aid >= 0x98 && aid <= 0xAF) || (aid >= 0xC0 && aid <= 0xCF)) {
472
473 // aid=128+(aid&0x7F);
474 // aid=0x80..0xBF
475 new_audio_stream(demux, aid);
476 if(demux->audio->id==aid){
477 int type;
478 ds=demux->audio;
479 if(!ds->sh) ds->sh=demux->a_streams[aid];
480 // READ Packet: Skip additional audio header data:
481 if(!rawa52) {
482 c=stream_read_char(demux->stream);//num of frames
483 type=stream_read_char(demux->stream);//startpos hi
484 type=(type<<8)|stream_read_char(demux->stream);//startpos lo
485 // printf("\r[%02X][%04X]",c,type);
486 len-=3;
487 }
488 if((aid&0xE0)==0xA0 && len>=3){
489 unsigned char* hdr;
490 // save audio header as codecdata!
491 if(!((sh_audio_t*)(ds->sh))->codecdata_len){
492 ((sh_audio_t*)(ds->sh))->codecdata=malloc(3);
493 ((sh_audio_t*)(ds->sh))->codecdata_len=3;
494 }
495 hdr=((sh_audio_t*)(ds->sh))->codecdata;
496 // read LPCM header:
497 // emphasis[1], mute[1], rvd[1], frame number[5]:
498 hdr[0]=stream_read_char(demux->stream);
499 // printf(" [%01X:%02d]",c>>5,c&31);
500 // quantization[2],freq[2],rvd[1],channels[3]
501 hdr[1]=stream_read_char(demux->stream);
502 // printf("[%01X:%01X] ",c>>4,c&15);
503 // dynamic range control (0x80=off):
504 hdr[2]=stream_read_char(demux->stream);
505 // printf("[%02X] ",c);
506 len-=3;
507 if(len<=0) mp_msg(MSGT_DEMUX,MSGL_V,"End of packet while searching for PCM header\n");
508 }
509 // printf(" \n");
510 } // if(demux->audio->id==aid)
511
512 } else mp_msg(MSGT_DEMUX,MSGL_V,"Unknown 0x1BD substream: 0x%02X \n",aid);
513 } //if(id==0x1BD)
514 } else {
515 if(c!=0x0f){
516 mp_msg(MSGT_DEMUX,MSGL_V," {ERROR5,c=%d} \n",c);
517 return -1; // invalid packet !!!!!!
518 }
519 }
520 if(mpeg_pts_error) mp_msg(MSGT_DEMUX,MSGL_V," {PTS_err:%d} \n",mpeg_pts_error);
521 mp_dbg(MSGT_DEMUX,MSGL_DBG3," => len=%d\n",len);
522
523 // if(len<=0 || len>MAX_PS_PACKETSIZE) return -1; // Invalid packet size
524 if(len<=0 || len>MAX_PS_PACKETSIZE){
525 mp_dbg(MSGT_DEMUX,MSGL_DBG2,"Invalid PS data len: %d\n",len);
526 return -1; // invalid packet !!!!!!
527 }
528
529 if(id>=0x1C0 && id<=0x1DF){
530 // mpeg audio
531 int aid=id-0x1C0;
532 new_audio_stream(demux, aid);
533 if(demux->audio->id==aid){
534 ds=demux->audio;
535 if(!ds->sh) ds->sh=demux->a_streams[aid];
536 if(priv && ds->sh) {
537 sh_audio_t *sh = (sh_audio_t *)ds->sh;
538 if(priv->es_map[id - 0x1B0])
539 sh->format = priv->es_map[id - 0x1B0];
540 mp_dbg(MSGT_DEMUX,MSGL_DBG2,"ASSIGNED TO STREAM %d CODEC %x\n", id, priv->es_map[id - 0x1B0]);
541 }
542 }
543 } else
544 if(id>=0x1E0 && id<=0x1EF){
545 // mpeg video
546 int aid=id-0x1E0;
547 if(!demux->v_streams[aid]) new_sh_video(demux,aid);
548 if(demux->video->id==-1) demux->video->id=aid;
549 if(demux->video->id==aid){
550 ds=demux->video;
551 if(!ds->sh) ds->sh=demux->v_streams[aid];
552 if(priv && ds->sh) {
553 sh_video_t *sh = (sh_video_t *)ds->sh;
554 if(priv->es_map[id - 0x1B0]) {
555 sh->format = priv->es_map[id - 0x1B0];
556 mp_dbg(MSGT_DEMUX,MSGL_DBG2,"ASSIGNED TO STREAM %d CODEC %x\n", id, priv->es_map[id - 0x1B0]);
557 }
558 }
559 }
560 }
561
562 if(ds){
563 mp_dbg(MSGT_DEMUX,MSGL_DBG2,"DEMUX_MPG: Read %d data bytes from packet %04X\n",len,id);
564 // printf("packet start = 0x%X \n",stream_tell(demux->stream)-packet_start_pos);
565
566 dp=new_demux_packet(len);
567 if(!dp) {
568 mp_dbg(MSGT_DEMUX,MSGL_ERR,"DEMUX_MPG ERROR: couldn't create demux_packet(%d bytes)\n",len);
569 stream_skip(demux->stream,len);
570 return 0;
571 }
572 l = stream_read(demux->stream,dp->buffer,len);
573 if(l<len)
574 resize_demux_packet(dp, l);
575 len = l;
576 if(set_pts)
577 dp->pts=pts/90000.0f;
578 dp->pos=demux->filepos;
579 /*
580 workaround:
581 set dp->stream_pts only when feeding the video stream, or strangely interleaved files
582 (such as SWIII) will show strange alternations in the stream time, wildly going
583 back and forth
584 */
585 if(ds == demux->video && stream_control(demux->stream, STREAM_CTRL_GET_CURRENT_TIME,(void *)&stream_pts)!=STREAM_UNSUPPORTED)
586 dp->stream_pts = stream_pts;
587 ds_add_packet(ds,dp);
588 if (demux->priv && set_pts) ((mpg_demuxer_t*)demux->priv)->last_pts = pts/90000.0f;
589 // if(ds==demux->sub) parse_dvdsub(ds->last->buffer,ds->last->len);
590 return 1;
591 }
592 mp_dbg(MSGT_DEMUX,MSGL_DBG2,"DEMUX_MPG: Skipping %d data bytes from packet %04X\n",len,id);
593 if(len<=2356) stream_skip(demux->stream,len);
594 return 0;
595 }
596
597 static int num_elementary_packets100=0;
598 static int num_elementary_packets101=0;
599 static int num_elementary_packets12x=0;
600 static int num_elementary_packets1B6=0;
601 static int num_elementary_packetsPES=0;
602 static int num_mpeg12_startcode=0;
603 static int num_h264_slice=0; //combined slice
604 static int num_h264_dpa=0; //DPA Slice
605 static int num_h264_dpb=0; //DPB Slice
606 static int num_h264_dpc=0; //DPC Slice
607 static int num_h264_idr=0; //IDR Slice
608 static int num_h264_sps=0;
609 static int num_h264_pps=0;
610
611 static int num_mp3audio_packets=0;
612
613 static void clear_stats(void)
614 {
615 num_elementary_packets100=0;
616 num_elementary_packets101=0;
617 num_elementary_packets1B6=0;
618 num_elementary_packets12x=0;
619 num_elementary_packetsPES=0;
620 num_mpeg12_startcode=0;
621 num_h264_slice=0; //combined slice
622 num_h264_dpa=0; //DPA Slice
623 num_h264_dpb=0; //DPB Slice
624 num_h264_dpc=0; //DPC Slice
625 num_h264_idr=0; //IDR Slice
626 num_h264_sps=0;
627 num_h264_pps=0;
628 num_mp3audio_packets=0;
629 }
630
631 //assumes demuxer->synced < 2
632 static inline void update_stats(int head)
633 {
634 if(head==0x1B6) ++num_elementary_packets1B6;
635 else if(head==0x1B3 || head==0x1B8) ++num_mpeg12_startcode;
636 else if(head==0x100) ++num_elementary_packets100;
637 else if(head==0x101) ++num_elementary_packets101;
638 else if(head==0x1BD || (0x1C0<=head && head<=0x1EF))
639 num_elementary_packetsPES++;
640 else if(head>=0x120 && head<=0x12F) ++num_elementary_packets12x;
641 if(head>=0x100 && head<0x1B0)
642 {
643 if((head&~0x60) == 0x101) ++num_h264_slice;
644 else if((head&~0x60) == 0x102) ++num_h264_dpa;
645 else if((head&~0x60) == 0x103) ++num_h264_dpb;
646 else if((head&~0x60) == 0x104) ++num_h264_dpc;
647 else if((head&~0x60) == 0x105 && head != 0x105) ++num_h264_idr;
648 else if((head&~0x60) == 0x107 && head != 0x107) ++num_h264_sps;
649 else if((head&~0x60) == 0x108 && head != 0x108) ++num_h264_pps;
650 }
651 }
652
653 static int demux_mpg_probe(demuxer_t *demuxer) {
654 int pes=1;
655 int tmp;
656 off_t tmppos;
657 int file_format = DEMUXER_TYPE_UNKNOWN;
658
659 tmppos=stream_tell(demuxer->stream);
660 tmp=stream_read_dword(demuxer->stream);
661 if(tmp==0x1E0 || tmp==0x1C0) {
662 tmp=stream_read_word(demuxer->stream);
663 if(tmp>1 && tmp<=2048) pes=0; // demuxer->synced=3; // PES...
664 }
665 stream_seek(demuxer->stream,tmppos);
666
667 clear_stats();
668
669 if(demux_mpg_open(demuxer))
670 file_format=DEMUXER_TYPE_MPEG_PS;
671 else {
672 mp_msg(MSGT_DEMUX,MSGL_V,"MPEG packet stats: p100: %d p101: %d p1B6: %d p12x: %d sli: %d a: %d b: %d c: %d idr: %d sps: %d pps: %d PES: %d MP3: %d, synced: %d\n",
673 num_elementary_packets100,num_elementary_packets101,
674 num_elementary_packets1B6,num_elementary_packets12x,
675 num_h264_slice, num_h264_dpa,
676 num_h264_dpb, num_h264_dpc=0,
677 num_h264_idr, num_h264_sps=0,
678 num_h264_pps,
679 num_elementary_packetsPES,num_mp3audio_packets, demuxer->synced);
680
681 //MPEG packet stats: p100: 458 p101: 458 PES: 0 MP3: 1103 (.m2v)
682 if(num_mp3audio_packets>50 && num_mp3audio_packets>2*num_elementary_packets100
683 && abs(num_elementary_packets100-num_elementary_packets101)>2)
684 return file_format;
685
686 // some hack to get meaningfull error messages to our unhappy users:
687 if(num_mpeg12_startcode>=2 && num_elementary_packets100>=2 && num_elementary_packets101>=2 &&
688 abs(num_elementary_packets101+8-num_elementary_packets100)<16) {
689 if(num_elementary_packetsPES>=4 && num_elementary_packetsPES>=num_elementary_packets100-4) {
690 return file_format;
691 }
692 file_format=DEMUXER_TYPE_MPEG_ES; // <-- hack is here :)
693 } else
694 // fuzzy mpeg4-es detection. do NOT enable without heavy testing of mpeg formats detection!
695 if(num_elementary_packets1B6>3 && num_elementary_packets12x>=1 &&
696 num_elementary_packetsPES==0 && num_elementary_packets100<=num_elementary_packets12x &&
697 demuxer->synced<2) {
698 file_format=DEMUXER_TYPE_MPEG4_ES;
699 } else
700 // fuzzy h264-es detection. do NOT enable without heavy testing of mpeg formats detection!
701 if((num_h264_slice>3 || (num_h264_dpa>3 && num_h264_dpb>3 && num_h264_dpc>3)) &&
702 /* FIXME num_h264_sps>=1 && */ num_h264_pps>=1 && num_h264_idr>=1 &&
703 num_elementary_packets1B6==0 && num_elementary_packetsPES==0 &&
704 demuxer->synced<2) {
705 file_format=DEMUXER_TYPE_H264_ES;
706 } else
707 {
708 if(demuxer->synced==2)
709 mp_msg(MSGT_DEMUXER,MSGL_ERR,"MPEG: " MSGTR_MissingVideoStreamBug);
710 else
711 mp_msg(MSGT_DEMUXER,MSGL_V,MSGTR_NotSystemStream);
712 }
713 }
714 //FIXME this shouldn't be necessary
715 stream_seek(demuxer->stream,tmppos);
716 return file_format;
717 }
718
719 static int demux_mpg_es_fill_buffer(demuxer_t *demux, demux_stream_t *ds){
720 // Elementary video stream
721 if(demux->stream->eof) return 0;
722 demux->filepos=stream_tell(demux->stream);
723 ds_read_packet(demux->video,demux->stream,STREAM_BUFFER_SIZE,0,demux->filepos,0);
724 return 1;
725 }
726
727 /**
728 * \brief discard until 0x100 header and return a filled buffer
729 * \param b buffer-end pointer
730 * \param pos current pos in stream, negative since b points to end of buffer
731 * \param s stream to read from
732 * \return new position, differs from original pos when eof hit and thus
733 * b was modified to point to the new end of buffer
734 */
735 static int find_end(unsigned char **b, int pos, stream_t *s) {
736 register int state = 0xffffffff;
737 unsigned char *buf = *b;
738 int start = pos;
739 int read, unused;
740 // search already read part
741 while (state != 0x100 && pos) {
742 state = state << 8 | buf[pos++];
743 }
744 // continue search in stream
745 while (state != 0x100) {
746 register int c = stream_read_char(s);
747 if (c < 0) break;
748 state = state << 8 | c;
749 }
750 // modify previous header (from 0x1bc or 0x1bf to 0x100)
751 buf[start++] = 0;
752 // copy remaining buffer part to current pos
753 memmove(&buf[start], &buf[pos], -pos);
754 unused = start + -pos; // -unused bytes in buffer
755 read = stream_read(s, &buf[unused], -unused);
756 unused += read;
757 // fix buffer so it ends at pos == 0 (eof case)
758 *b = &buf[unused];
759 start -= unused;
760 return start;
761 }
762
763 /**
764 * This format usually uses an insane bitrate, which makes this function
765 * performance-critical!
766 * Be sure to benchmark any changes with different compiler versions.
767 */
768 static int demux_mpg_gxf_fill_buffer(demuxer_t *demux, demux_stream_t *ds) {
769 demux_packet_t *pack;
770 int len;
771 demux->filepos = stream_tell(demux->stream);
772 pack = new_demux_packet(STREAM_BUFFER_SIZE);
773 len = stream_read(demux->stream, pack->buffer, STREAM_BUFFER_SIZE);
774 if (len <= 0)
775 {
776 free_demux_packet(pack);
777 return 0;
778 }
779 {
780 register uint32_t state = (uint32_t)demux->priv;
781 register int pos = -len;
782 unsigned char *buf = &pack->buffer[len];
783 do {
784 state = state << 8 | buf[pos];
785 if (unlikely((state | 3) == 0x1bf))
786 pos = find_end(&buf, pos, demux->stream);
787 } while (++pos < 0);
788 demux->priv = (void *)state;
789 len = buf - pack->buffer;
790 }
791 if (len < STREAM_BUFFER_SIZE)
792 resize_demux_packet(pack, len);
793 ds_add_packet(ds, pack);
794 return 1;
795 }
796
797 static int demux_mpg_fill_buffer(demuxer_t *demux, demux_stream_t *ds){
798 unsigned int head=0;
799 int skipped=0;
800 int max_packs=256; // 512kbyte
801 int ret=0;
802
803 // System stream
804 do{
805 demux->filepos=stream_tell(demux->stream);
806 #if 1
807 //lame workaround: this is needed to show the progress bar when playing dvdnav://
808 //(ths poor guy doesn't know teh length of the stream at startup)
809 demux->movi_end = demux->stream->end_pos;
810 #endif
811 head=stream_read_dword(demux->stream);
812 if((head&0xFFFFFF00)!=0x100){
813 // sync...
814 demux->filepos-=skipped;
815 while(1){
816 int c=stream_read_char(demux->stream);
817 if(c<0) break; //EOF
818 head<<=8;
819 if(head!=0x100){
820 head|=c;
821 if(mp_check_mp3_header(head)) ++num_mp3audio_packets;
822 ++skipped; //++demux->filepos;
823 continue;
824 }
825 head|=c;
826 break;
827 }
828 demux->filepos+=skipped;
829 }
830 if(stream_eof(demux->stream)) break;
831 // sure: head=0x000001XX
832 mp_dbg(MSGT_DEMUX,MSGL_DBG4,"*** head=0x%X\n",head);
833 if(demux->synced==0){
834 if(head==0x1BA) demux->synced=1; //else
835 // if(head==0x1BD || (head>=0x1C0 && head<=0x1EF)) demux->synced=3; // PES?
836 } else
837 if(demux->synced==1){
838 if(head==0x1BB || head==0x1BD || (head>=0x1C0 && head<=0x1EF)){
839 demux->synced=2;
840 mp_msg(MSGT_DEMUX,MSGL_V,"system stream synced at 0x%"PRIX64" (%"PRId64")!\n",(int64_t)demux->filepos,(int64_t)demux->filepos);
841 num_elementary_packets100=0; // requires for re-sync!
842 num_elementary_packets101=0; // requires for re-sync!
843 } else demux->synced=0;
844 } // else
845 if(demux->synced>=2){
846 ret=demux_mpg_read_packet(demux,head);
847 if(!ret)
848 if(--max_packs==0){
849 demux->stream->eof=1;
850 mp_msg(MSGT_DEMUX,MSGL_ERR,MSGTR_DoesntContainSelectedStream);
851 return 0;
852 }
853 if(demux->synced==3) demux->synced=(ret==1)?2:0; // PES detect
854 } else {
855 update_stats(head);
856 if(head>=0x100 && head<0x1B0)
857 mp_msg(MSGT_DEMUX,MSGL_DBG3,"Opps... elementary video packet found: %03X\n",head);
858 else if((head>=0x1C0 && head<0x1F0) || head==0x1BD)
859 mp_msg(MSGT_DEMUX,MSGL_DBG3,"Opps... PES packet found: %03X\n",head);
860
861 if(((num_elementary_packets100>50 && num_elementary_packets101>50) ||
862 (num_elementary_packetsPES>50)) && skipped>4000000){
863 mp_msg(MSGT_DEMUX,MSGL_V,"sync_mpeg_ps: seems to be ES/PES stream...\n");
864 demux->stream->eof=1;
865 break;
866 }
867 if(num_mp3audio_packets>100 && num_elementary_packets100<10){
868 mp_msg(MSGT_DEMUX,MSGL_V,"sync_mpeg_ps: seems to be MP3 stream...\n");
869 demux->stream->eof=1;
870 break;
871 }
872 }
873 } while(ret!=1);
874 mp_dbg(MSGT_DEMUX,MSGL_DBG2,"demux: %d bad bytes skipped\n",skipped);
875 if(demux->stream->eof){
876 mp_msg(MSGT_DEMUX,MSGL_V,"MPEG Stream reached EOF\n");
877 return 0;
878 }
879 return 1;
880 }
881
882 void skip_audio_frame(sh_audio_t *sh_audio);
883
884 static void demux_seek_mpg(demuxer_t *demuxer,float rel_seek_secs,float audio_delay, int flags){
885 demux_stream_t *d_audio=demuxer->audio;
886 demux_stream_t *d_video=demuxer->video;
887 sh_audio_t *sh_audio=d_audio->sh;
888 sh_video_t *sh_video=d_video->sh;
889 mpg_demuxer_t *mpg_d=(mpg_demuxer_t*)demuxer->priv;
890 int precision = 1;
891 float oldpts = 0;
892 off_t oldpos = demuxer->filepos;
893 float newpts = 0;
894 off_t newpos = (flags & SEEK_ABSOLUTE) ? demuxer->movi_start : oldpos;
895
896 if(mpg_d)
897 oldpts = mpg_d->last_pts;
898 newpts = (flags & SEEK_ABSOLUTE) ? 0.0 : oldpts;
899 //================= seek in MPEG ==========================
900 //calculate the pts to seek to
901 if(flags & SEEK_FACTOR) {
902 if (mpg_d && mpg_d->first_to_final_pts_len > 0.0)
903 newpts += mpg_d->first_to_final_pts_len * rel_seek_secs;
904 else
905 newpts += rel_seek_secs * (demuxer->movi_end - demuxer->movi_start) * oldpts / oldpos;
906 } else
907 newpts += rel_seek_secs;
908 if (newpts < 0) newpts = 0;
909
910 if(flags&SEEK_FACTOR){
911 // float seek 0..1
912 newpos+=(demuxer->movi_end-demuxer->movi_start)*rel_seek_secs;
913 } else {
914 // time seek (secs)
915 if (mpg_d && mpg_d->has_valid_timestamps) {
916 if (mpg_d->first_to_final_pts_len > 0.0)
917 newpos += rel_seek_secs * (demuxer->movi_end - demuxer->movi_start) / mpg_d->first_to_final_pts_len;
918 else if (oldpts > 0.0)
919 newpos += rel_seek_secs * (oldpos - demuxer->movi_start) / oldpts;
920 } else if(!sh_video || !sh_video->i_bps) // unspecified or VBR
921 newpos+=2324*75*rel_seek_secs; // 174.3 kbyte/sec
922 else
923 newpos+=sh_video->i_bps*rel_seek_secs;
924 }
925
926 while (1) {
927 if(newpos<demuxer->movi_start){
928 if(demuxer->stream->type!=STREAMTYPE_VCD) demuxer->movi_start=0; // for VCD
929 if(newpos<demuxer->movi_start) newpos=demuxer->movi_start;
930 }
931
932 stream_seek(demuxer->stream,newpos);
933
934 // re-sync video:
935 videobuf_code_len=0; // reset ES stream buffer
936
937 ds_fill_buffer(d_video);
938 if(sh_audio){
939 ds_fill_buffer(d_audio);
940 }
941
942 while(1){
943 int i;
944 if(sh_audio && !d_audio->eof && d_video->pts && d_audio->pts){
945 float a_pts=d_audio->pts;
946 a_pts+=(ds_tell_pts(d_audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
947 if(d_video->pts>a_pts){
948 skip_audio_frame(sh_audio); // sync audio
949 continue;
950 }
951 }
952 if(!sh_video) break;
953 i=sync_video_packet(d_video);
954 if(sh_video->format == mmioFOURCC('W', 'V', 'C', '1')) {
955 if(i==0x10E || i==0x10F) //entry point or sequence header
956 break;
957 } else
958 if(sh_video->format == 0x10000004) { //mpeg4
959 if(i==0x1B6) { //vop (frame) startcode
960 int pos = videobuf_len;
961 if(!read_video_packet(d_video)) break; // EOF
962 if((videobuffer[pos+4] & 0x3F) == 0) break; //I-frame
963 }
964 } else if(sh_video->format == 0x10000005){ //h264
965 if((i & ~0x60) == 0x105) break;
966 } else { //default mpeg1/2
967 if(i==0x1B3 || i==0x1B8) break; // found it!
968 }
969 if(!i || !skip_video_packet(d_video)) break; // EOF?
970 }
971 if(!mpg_d)
972 break;
973 if (!precision || abs(newpts - mpg_d->last_pts) < 0.5 || (mpg_d->last_pts == oldpts)) break;
974 if ((newpos - oldpos) * (mpg_d->last_pts - oldpts) < 0) { // invalid timestamps
975 mpg_d->has_valid_timestamps = 0;
976 break;
977 }
978 precision--;
979 //prepare another seek because we are off by more than 0.5s
980 if(mpg_d) {
981 newpos += (newpts - mpg_d->last_pts) * (newpos - oldpos) / (mpg_d->last_pts - oldpts);
982 demux_flush(demuxer);
983 demuxer->stream->eof=0; // clear eof flag
984 d_video->eof=0;
985 d_audio->eof=0;
986 }
987 }
988 }
989
990 static int demux_mpg_control(demuxer_t *demuxer,int cmd, void *arg){
991 mpg_demuxer_t *mpg_d=(mpg_demuxer_t*)demuxer->priv;
992
993 switch(cmd) {
994 case DEMUXER_CTRL_GET_TIME_LENGTH:
995 if(stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH, arg) != STREAM_UNSUPPORTED) {
996 mp_msg(MSGT_DEMUXER,MSGL_DBG2,"\r\nDEMUX_MPG_CTRL, (%.3lf)\r\n", *((double*)arg));
997 return DEMUXER_CTRL_GUESS;
998 }
999 if (mpg_d && mpg_d->has_valid_timestamps) {
1000 *((double *)arg)=(double)mpg_d->first_to_final_pts_len;
1001 return DEMUXER_CTRL_OK;
1002 }
1003 return DEMUXER_CTRL_DONTKNOW;
1004
1005 case DEMUXER_CTRL_GET_PERCENT_POS:
1006 if (mpg_d && mpg_d->has_valid_timestamps && mpg_d->first_to_final_pts_len > 0.0) {
1007 *((int *)arg)=(int)(100 * (mpg_d->last_pts-mpg_d->first_pts) / mpg_d->first_to_final_pts_len);
1008 return DEMUXER_CTRL_OK;
1009 }
1010 return DEMUXER_CTRL_DONTKNOW;
1011
1012 case DEMUXER_CTRL_SWITCH_AUDIO:
1013 if(! (mpg_d && mpg_d->num_a_streams > 1 && demuxer->audio && demuxer->audio->sh))
1014 return DEMUXER_CTRL_NOTIMPL;
1015 else {
1016 demux_stream_t *d_audio = demuxer->audio;
1017 sh_audio_t *sh_audio = d_audio->sh;
1018 sh_audio_t *sh_a = sh_audio;
1019 int i;
1020 if(!sh_audio)
1021 return DEMUXER_CTRL_NOTIMPL;
1022 if (*((int*)arg) < 0)
1023 {
1024 for (i = 0; i < mpg_d->num_a_streams; i++) {
1025 if (d_audio->id == mpg_d->a_stream_ids[i]) break;
1026 }
1027 i = (i+1) % mpg_d->num_a_streams;
1028 sh_a = (sh_audio_t*)demuxer->a_streams[mpg_d->a_stream_ids[i]];
1029 }
1030 else {
1031 for (i = 0; i < mpg_d->num_a_streams; i++)
1032 if (*((int*)arg) == mpg_d->a_stream_ids[i]) break;
1033 if (i < mpg_d->num_a_streams)
1034 sh_a = (sh_audio_t*)demuxer->a_streams[*((int*)arg)];
1035 }
1036 if (i < mpg_d->num_a_streams && d_audio->id != mpg_d->a_stream_ids[i]) {
1037 d_audio->id = mpg_d->a_stream_ids[i];
1038 d_audio->sh = sh_a;
1039 ds_free_packs(d_audio);
1040 }
1041 }
1042 *((int*)arg) = demuxer->audio->id;
1043 return DEMUXER_CTRL_OK;
1044
1045 default:
1046 return DEMUXER_CTRL_NOTIMPL;
1047 }
1048 }
1049
1050
1051 static int demux_mpg_pes_probe(demuxer_t *demuxer) {
1052 demuxer->synced = 3;
1053 return (demux_mpg_probe(demuxer) == DEMUXER_TYPE_MPEG_PS) ? DEMUXER_TYPE_MPEG_PES : 0;
1054 }
1055
1056
1057 static demuxer_t* demux_mpg_es_open(demuxer_t* demuxer)
1058 {
1059 sh_video_t *sh_video=NULL;
1060
1061 demuxer->audio->sh = NULL; // ES streams has no audio channel
1062 demuxer->video->sh = new_sh_video(demuxer,0); // create dummy video stream header, id=0
1063 sh_video=demuxer->video->sh;sh_video->ds=demuxer->video;
1064
1065 return demuxer;
1066 }
1067
1068 static demuxer_t *demux_mpg_gxf_open(demuxer_t *demuxer) {
1069 demuxer->audio->sh = NULL;
1070 demuxer->video->sh = new_sh_video(demuxer,0);
1071 ((sh_video_t *)demuxer->video->sh)->ds = demuxer->video;
1072 demuxer->priv = (void *) 0xffffffff;
1073 return demuxer;
1074 }
1075
1076 static demuxer_t* demux_mpg_ps_open(demuxer_t* demuxer)
1077 {
1078 sh_audio_t *sh_audio=NULL;
1079 sh_video_t *sh_video=NULL;
1080
1081 sh_video=demuxer->video->sh;sh_video->ds=demuxer->video;
1082
1083 if(demuxer->audio->id!=-2) {
1084 if(!ds_fill_buffer(demuxer->audio)){
1085 mp_msg(MSGT_DEMUXER,MSGL_INFO,"MPEG: " MSGTR_MissingAudioStream);
1086 demuxer->audio->sh=NULL;
1087 } else {
1088 sh_audio=demuxer->audio->sh;sh_audio->ds=demuxer->audio;
1089 }
1090 }
1091
1092 if(!sh_video->format && ps_probe > 0) {
1093 int head;
1094 off_t pos = stream_tell(demuxer->stream);
1095
1096 clear_stats();
1097 do {
1098 head=sync_video_packet(demuxer->video);
1099 if(!head) break;
1100 update_stats(head);
1101 skip_video_packet(demuxer->video);
1102 } while(stream_tell(demuxer->stream) < pos + ps_probe && !demuxer->stream->eof);
1103
1104 ds_free_packs(demuxer->video);
1105 demuxer->stream->eof=0;
1106 stream_seek(demuxer->stream, pos);
1107 mp_msg(MSGT_DEMUX,MSGL_INFO,"MPEG packet stats: p100: %d p101: %d p1B6: %d p12x: %d sli: %d a: %d b: %d c: %d idr: %d sps: %d pps: %d\n",
1108 num_elementary_packets100, num_elementary_packets101,
1109 num_elementary_packets1B6, num_elementary_packets12x,
1110 num_h264_slice, num_h264_dpa, num_h264_dpb, num_h264_dpc,
1111 num_h264_idr, num_h264_sps, num_h264_pps);
1112
1113 if(num_elementary_packets1B6>3 && num_elementary_packets12x>=1 &&
1114 num_elementary_packets100<=num_elementary_packets12x)
1115 sh_video->format = 0x10000004;
1116 else if((num_h264_slice>3 || (num_h264_dpa>3 && num_h264_dpb>3 && num_h264_dpc>3)) &&
1117 num_h264_sps>=1 && num_h264_pps>=1 && num_h264_idr>=1 &&
1118 num_elementary_packets1B6==0)
1119 sh_video->format = 0x10000005;
1120 else sh_video->format = 0x10000002;
1121 }
1122
1123 return demuxer;
1124 }
1125
1126
1127 const demuxer_desc_t demuxer_desc_mpeg_ps = {
1128 "MPEG PS demuxer",
1129 "mpegps",
1130 "MPEG-PS",
1131 "Arpi?",
1132 "Mpeg",
1133 DEMUXER_TYPE_MPEG_PS,
1134 0, // unsafe autodetect
1135 demux_mpg_probe,
1136 demux_mpg_fill_buffer,
1137 demux_mpg_ps_open,
1138 demux_close_mpg,
1139 demux_seek_mpg,
1140 demux_mpg_control,
1141 };
1142
1143
1144 const demuxer_desc_t demuxer_desc_mpeg_pes = {
1145 "MPEG PES demuxer",
1146 "mpegpes",
1147 "MPEG-PES",
1148 "Arpi?",
1149 "Mpeg",
1150 DEMUXER_TYPE_MPEG_PES,
1151 0, // unsafe autodetect
1152 demux_mpg_pes_probe,
1153 demux_mpg_fill_buffer,
1154 demux_mpg_ps_open,
1155 demux_close_mpg,
1156 demux_seek_mpg,
1157 demux_mpg_control,
1158 };
1159
1160
1161 const demuxer_desc_t demuxer_desc_mpeg_gxf = {
1162 "MPEG ES in GXF demuxer",
1163 "mpeggxf",
1164 "MPEG-ES in GXF",
1165 "Reimar Doeffinger",
1166 "Mpeg",
1167 DEMUXER_TYPE_MPEG_GXF,
1168 0, // hack autodetection
1169 NULL,
1170 demux_mpg_gxf_fill_buffer,
1171 demux_mpg_gxf_open,
1172 NULL,
1173 NULL,
1174 NULL
1175 };
1176
1177 const demuxer_desc_t demuxer_desc_mpeg_es = {
1178 "MPEG ES demuxer",
1179 "mpeges",
1180 "MPEG-ES",
1181 "Arpi?",
1182 "Mpeg",
1183 DEMUXER_TYPE_MPEG_ES,
1184 0, // hack autodetection
1185 NULL,
1186 demux_mpg_es_fill_buffer,
1187 demux_mpg_es_open,
1188 demux_close_mpg,
1189 demux_seek_mpg,
1190 demux_mpg_control,
1191 };
1192
1193
1194 const demuxer_desc_t demuxer_desc_mpeg4_es = {
1195 "MPEG4 ES demuxer",
1196 "mpeg4es",
1197 "MPEG-ES",
1198 "Arpi?",
1199 "Mpeg",
1200 DEMUXER_TYPE_MPEG4_ES,
1201 0, // hack autodetection
1202 NULL,
1203 demux_mpg_es_fill_buffer,
1204 demux_mpg_es_open,
1205 demux_close_mpg,
1206 demux_seek_mpg,
1207 demux_mpg_control,
1208 };
1209
1210
1211 const demuxer_desc_t demuxer_desc_h264_es = {
1212 "H.264 ES demuxer",
1213 "h264es",
1214 "H264-ES",
1215 "Arpi?",
1216 "Mpeg",
1217 DEMUXER_TYPE_H264_ES,
1218 0, // hack autodetection
1219 NULL,
1220 demux_mpg_es_fill_buffer,
1221 demux_mpg_es_open,
1222 demux_close_mpg,
1223 demux_seek_mpg,
1224 demux_mpg_control,
1225 };
MPlayer development branch