Sync AC3 probe values with MP3 probe values, they have to avoid similar issues.
[ffmpeg.git] / libavformat / raw.c
1 /*
2  * RAW muxer and demuxer
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2005 Alex Beregszaszi
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg 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 FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22
23 #include "libavutil/crc.h"
24 #include "libavcodec/ac3_parser.h"
25 #include "libavcodec/get_bits.h"
26 #include "libavcodec/bytestream.h"
27 #include "avformat.h"
28 #include "raw.h"
29 #include "id3v2.h"
30 #include "id3v1.h"
31
32 /* simple formats */
33
34 #if CONFIG_ROQ_MUXER
35 static int roq_write_header(struct AVFormatContext *s)
36 {
37     static const uint8_t header[] = {
38         0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0x1E, 0x00
39     };
40
41     put_buffer(s->pb, header, 8);
42     put_flush_packet(s->pb);
43
44     return 0;
45 }
46 #endif
47
48 #if CONFIG_NULL_MUXER
49 static int null_write_packet(struct AVFormatContext *s, AVPacket *pkt)
50 {
51     return 0;
52 }
53 #endif
54
55 #if CONFIG_MUXERS
56 static int raw_write_packet(struct AVFormatContext *s, AVPacket *pkt)
57 {
58     put_buffer(s->pb, pkt->data, pkt->size);
59     put_flush_packet(s->pb);
60     return 0;
61 }
62 #endif
63
64 #if CONFIG_DEMUXERS
65 /* raw input */
66 static int raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
67 {
68     AVStream *st;
69     int id;
70
71     st = av_new_stream(s, 0);
72     if (!st)
73         return AVERROR(ENOMEM);
74
75         id = s->iformat->value;
76         if (id == CODEC_ID_RAWVIDEO) {
77             st->codec->codec_type = CODEC_TYPE_VIDEO;
78         } else {
79             st->codec->codec_type = CODEC_TYPE_AUDIO;
80         }
81         st->codec->codec_id = id;
82
83         switch(st->codec->codec_type) {
84         case CODEC_TYPE_AUDIO:
85             st->codec->sample_rate = ap->sample_rate;
86             if(ap->channels) st->codec->channels = ap->channels;
87             else             st->codec->channels = 1;
88             st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
89             assert(st->codec->bits_per_coded_sample > 0);
90             st->codec->block_align = st->codec->bits_per_coded_sample*st->codec->channels/8;
91             av_set_pts_info(st, 64, 1, st->codec->sample_rate);
92             break;
93         case CODEC_TYPE_VIDEO:
94             if(ap->time_base.num)
95                 av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
96             else
97                 av_set_pts_info(st, 64, 1, 25);
98             st->codec->width = ap->width;
99             st->codec->height = ap->height;
100             st->codec->pix_fmt = ap->pix_fmt;
101             if(st->codec->pix_fmt == PIX_FMT_NONE)
102                 st->codec->pix_fmt= PIX_FMT_YUV420P;
103             break;
104         default:
105             return -1;
106         }
107     return 0;
108 }
109
110 #define RAW_PACKET_SIZE 1024
111 #define RAW_SAMPLES     1024
112
113 static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
114 {
115     int ret, size, bps;
116     //    AVStream *st = s->streams[0];
117
118     size= RAW_SAMPLES*s->streams[0]->codec->block_align;
119
120     ret= av_get_packet(s->pb, pkt, size);
121
122     pkt->stream_index = 0;
123     if (ret <= 0) {
124         return AVERROR(EIO);
125     }
126     /* note: we need to modify the packet size here to handle the last
127        packet */
128     pkt->size = ret;
129
130     bps= av_get_bits_per_sample(s->streams[0]->codec->codec_id);
131     assert(bps); // if false there IS a bug elsewhere (NOT in this function)
132     pkt->dts=
133     pkt->pts= pkt->pos*8 / (bps * s->streams[0]->codec->channels);
134
135     return ret;
136 }
137
138 int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
139 {
140     int ret, size;
141
142     size = RAW_PACKET_SIZE;
143
144     if (av_new_packet(pkt, size) < 0)
145         return AVERROR(EIO);
146
147     pkt->pos= url_ftell(s->pb);
148     pkt->stream_index = 0;
149     ret = get_partial_buffer(s->pb, pkt->data, size);
150     if (ret <= 0) {
151         av_free_packet(pkt);
152         return AVERROR(EIO);
153     }
154     pkt->size = ret;
155     return ret;
156 }
157 #endif
158
159 #if CONFIG_RAWVIDEO_DEMUXER
160 static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
161 {
162     int packet_size, ret, width, height;
163     AVStream *st = s->streams[0];
164
165     width = st->codec->width;
166     height = st->codec->height;
167
168     packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
169     if (packet_size < 0)
170         return -1;
171
172     ret= av_get_packet(s->pb, pkt, packet_size);
173     pkt->pts=
174     pkt->dts= pkt->pos / packet_size;
175
176     pkt->stream_index = 0;
177     if (ret != packet_size) {
178         return AVERROR(EIO);
179     } else {
180         return 0;
181     }
182 }
183 #endif
184
185 #if CONFIG_INGENIENT_DEMUXER
186 // http://www.artificis.hu/files/texts/ingenient.txt
187 static int ingenient_read_packet(AVFormatContext *s, AVPacket *pkt)
188 {
189     int ret, size, w, h, unk1, unk2;
190
191     if (get_le32(s->pb) != MKTAG('M', 'J', 'P', 'G'))
192         return AVERROR(EIO); // FIXME
193
194     size = get_le32(s->pb);
195
196     w = get_le16(s->pb);
197     h = get_le16(s->pb);
198
199     url_fskip(s->pb, 8); // zero + size (padded?)
200     url_fskip(s->pb, 2);
201     unk1 = get_le16(s->pb);
202     unk2 = get_le16(s->pb);
203     url_fskip(s->pb, 22); // ASCII timestamp
204
205     av_log(s, AV_LOG_DEBUG, "Ingenient packet: size=%d, width=%d, height=%d, unk1=%d unk2=%d\n",
206         size, w, h, unk1, unk2);
207
208     if (av_new_packet(pkt, size) < 0)
209         return AVERROR(EIO);
210
211     pkt->pos = url_ftell(s->pb);
212     pkt->stream_index = 0;
213     ret = get_buffer(s->pb, pkt->data, size);
214     if (ret <= 0) {
215         av_free_packet(pkt);
216         return AVERROR(EIO);
217     }
218     pkt->size = ret;
219     return ret;
220 }
221 #endif
222
223 #if CONFIG_DEMUXERS
224 int pcm_read_seek(AVFormatContext *s,
225                   int stream_index, int64_t timestamp, int flags)
226 {
227     AVStream *st;
228     int block_align, byte_rate, ret;
229     int64_t pos;
230
231     st = s->streams[0];
232
233     block_align = st->codec->block_align ? st->codec->block_align :
234         (av_get_bits_per_sample(st->codec->codec_id) * st->codec->channels) >> 3;
235     byte_rate = st->codec->bit_rate ? st->codec->bit_rate >> 3 :
236         block_align * st->codec->sample_rate;
237
238     if (block_align <= 0 || byte_rate <= 0)
239         return -1;
240     if (timestamp < 0) timestamp = 0;
241
242     /* compute the position by aligning it to block_align */
243     pos = av_rescale_rnd(timestamp * byte_rate,
244                          st->time_base.num,
245                          st->time_base.den * (int64_t)block_align,
246                          (flags & AVSEEK_FLAG_BACKWARD) ? AV_ROUND_DOWN : AV_ROUND_UP);
247     pos *= block_align;
248
249     /* recompute exact position */
250     st->cur_dts = av_rescale(pos, st->time_base.den, byte_rate * (int64_t)st->time_base.num);
251     if ((ret = url_fseek(s->pb, pos + s->data_offset, SEEK_SET)) < 0)
252         return ret;
253     return 0;
254 }
255
256 static int audio_read_header(AVFormatContext *s,
257                              AVFormatParameters *ap)
258 {
259     AVStream *st = av_new_stream(s, 0);
260     if (!st)
261         return AVERROR(ENOMEM);
262     st->codec->codec_type = CODEC_TYPE_AUDIO;
263     st->codec->codec_id = s->iformat->value;
264     st->need_parsing = AVSTREAM_PARSE_FULL;
265     /* the parameters will be extracted from the compressed bitstream */
266
267     return 0;
268 }
269
270 /* MPEG-1/H.263 input */
271 static int video_read_header(AVFormatContext *s,
272                              AVFormatParameters *ap)
273 {
274     AVStream *st;
275
276     st = av_new_stream(s, 0);
277     if (!st)
278         return AVERROR(ENOMEM);
279
280     st->codec->codec_type = CODEC_TYPE_VIDEO;
281     st->codec->codec_id = s->iformat->value;
282     st->need_parsing = AVSTREAM_PARSE_FULL;
283
284     /* for MJPEG, specify frame rate */
285     /* for MPEG-4 specify it, too (most MPEG-4 streams do not have the fixed_vop_rate set ...)*/
286     if (ap->time_base.num) {
287         st->codec->time_base= ap->time_base;
288     } else if ( st->codec->codec_id == CODEC_ID_MJPEG ||
289                 st->codec->codec_id == CODEC_ID_MPEG4 ||
290                 st->codec->codec_id == CODEC_ID_DIRAC ||
291                 st->codec->codec_id == CODEC_ID_H264) {
292         st->codec->time_base= (AVRational){1,25};
293     }
294     av_set_pts_info(st, 64, 1, 1200000);
295
296     return 0;
297 }
298 #endif
299
300 #if CONFIG_MPEGVIDEO_DEMUXER
301 #define SEQ_START_CODE          0x000001b3
302 #define GOP_START_CODE          0x000001b8
303 #define PICTURE_START_CODE      0x00000100
304 #define SLICE_START_CODE        0x00000101
305 #define PACK_START_CODE         0x000001ba
306 #define VIDEO_ID                0x000001e0
307 #define AUDIO_ID                0x000001c0
308
309 static int mpegvideo_probe(AVProbeData *p)
310 {
311     uint32_t code= -1;
312     int pic=0, seq=0, slice=0, pspack=0, pes=0;
313     int i;
314
315     for(i=0; i<p->buf_size; i++){
316         code = (code<<8) + p->buf[i];
317         if ((code & 0xffffff00) == 0x100) {
318             switch(code){
319             case     SEQ_START_CODE:   seq++; break;
320             case PICTURE_START_CODE:   pic++; break;
321             case   SLICE_START_CODE: slice++; break;
322             case    PACK_START_CODE: pspack++; break;
323             }
324             if     ((code & 0x1f0) == VIDEO_ID)   pes++;
325             else if((code & 0x1e0) == AUDIO_ID)   pes++;
326         }
327     }
328     if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !pes)
329         return pic>1 ? AVPROBE_SCORE_MAX/2+1 : AVPROBE_SCORE_MAX/4; // +1 for .mpg
330     return 0;
331 }
332 #endif
333
334 #if CONFIG_CAVSVIDEO_DEMUXER
335 #define CAVS_SEQ_START_CODE       0x000001b0
336 #define CAVS_PIC_I_START_CODE     0x000001b3
337 #define CAVS_UNDEF_START_CODE     0x000001b4
338 #define CAVS_PIC_PB_START_CODE    0x000001b6
339 #define CAVS_VIDEO_EDIT_CODE      0x000001b7
340 #define CAVS_PROFILE_JIZHUN       0x20
341
342 static int cavsvideo_probe(AVProbeData *p)
343 {
344     uint32_t code= -1;
345     int pic=0, seq=0, slice_pos = 0;
346     int i;
347
348     for(i=0; i<p->buf_size; i++){
349         code = (code<<8) + p->buf[i];
350         if ((code & 0xffffff00) == 0x100) {
351             if(code < CAVS_SEQ_START_CODE) {
352                 /* slices have to be consecutive */
353                 if(code < slice_pos)
354                     return 0;
355                 slice_pos = code;
356             } else {
357                 slice_pos = 0;
358             }
359             if (code == CAVS_SEQ_START_CODE) {
360                 seq++;
361                 /* check for the only currently supported profile */
362                 if(p->buf[i+1] != CAVS_PROFILE_JIZHUN)
363                     return 0;
364             } else if ((code == CAVS_PIC_I_START_CODE) ||
365                        (code == CAVS_PIC_PB_START_CODE)) {
366                 pic++;
367             } else if ((code == CAVS_UNDEF_START_CODE) ||
368                        (code >  CAVS_VIDEO_EDIT_CODE)) {
369                 return 0;
370             }
371         }
372     }
373     if(seq && seq*9<=pic*10)
374         return AVPROBE_SCORE_MAX/2;
375     return 0;
376 }
377 #endif
378
379 #if CONFIG_M4V_DEMUXER
380 #define VISUAL_OBJECT_START_CODE       0x000001b5
381 #define VOP_START_CODE                 0x000001b6
382
383 static int mpeg4video_probe(AVProbeData *probe_packet)
384 {
385     uint32_t temp_buffer= -1;
386     int VO=0, VOL=0, VOP = 0, VISO = 0, res=0;
387     int i;
388
389     for(i=0; i<probe_packet->buf_size; i++){
390         temp_buffer = (temp_buffer<<8) + probe_packet->buf[i];
391         if ((temp_buffer & 0xffffff00) != 0x100)
392             continue;
393
394         if (temp_buffer == VOP_START_CODE)                         VOP++;
395         else if (temp_buffer == VISUAL_OBJECT_START_CODE)          VISO++;
396         else if (temp_buffer < 0x120)                              VO++;
397         else if (temp_buffer < 0x130)                              VOL++;
398         else if (   !(0x1AF < temp_buffer && temp_buffer < 0x1B7)
399                  && !(0x1B9 < temp_buffer && temp_buffer < 0x1C4)) res++;
400     }
401
402     if ( VOP >= VISO && VOP >= VOL && VO >= VOL && VOL > 0 && res==0)
403         return AVPROBE_SCORE_MAX/2;
404     return 0;
405 }
406 #endif
407
408 #if CONFIG_H264_DEMUXER
409 static int h264_probe(AVProbeData *p)
410 {
411     uint32_t code= -1;
412     int sps=0, pps=0, idr=0, res=0, sli=0;
413     int i;
414
415     for(i=0; i<p->buf_size; i++){
416         code = (code<<8) + p->buf[i];
417         if ((code & 0xffffff00) == 0x100) {
418             int ref_idc= (code>>5)&3;
419             int type   = code & 0x1F;
420             static const int8_t ref_zero[32]={
421                 2, 0, 0, 0, 0,-1, 1,-1,
422                -1, 1, 1, 1, 1,-1, 2, 2,
423                 2, 2, 2, 0, 2, 2, 2, 2,
424                 2, 2, 2, 2, 2, 2, 2, 2
425             };
426
427             if(code & 0x80) //forbidden bit
428                 return 0;
429
430             if(ref_zero[type] == 1 && ref_idc)
431                 return 0;
432             if(ref_zero[type] ==-1 && !ref_idc)
433                 return 0;
434             if(ref_zero[type] == 2)
435                 res++;
436
437             switch(type){
438             case     1:   sli++; break;
439             case     5:   idr++; break;
440             case     7:
441                 if(p->buf[i+2]&0x0F)
442                     return 0;
443                 sps++;
444                 break;
445             case     8:   pps++; break;
446             }
447         }
448     }
449     if(sps && pps && (idr||sli>3) && res<(sps+pps+idr))
450         return AVPROBE_SCORE_MAX/2+1; // +1 for .mpg
451     return 0;
452 }
453 #endif
454
455 #if CONFIG_H263_DEMUXER
456 static int h263_probe(AVProbeData *p)
457 {
458     uint64_t code= -1;
459     int i;
460     int valid_psc=0;
461     int invalid_psc=0;
462     int res_change=0;
463     int src_fmt, last_src_fmt=-1;
464
465     for(i=0; i<p->buf_size; i++){
466         code = (code<<8) + p->buf[i];
467         if ((code & 0xfffffc0000) == 0x800000) {
468             src_fmt= (code>>2)&3;
469             if(   src_fmt != last_src_fmt
470                && last_src_fmt>0 && last_src_fmt<6
471                && src_fmt<6)
472                 res_change++;
473
474             if((code&0x300)==0x200 && src_fmt){
475                 valid_psc++;
476             }else
477                 invalid_psc++;
478             last_src_fmt= src_fmt;
479         }
480     }
481     if(valid_psc > 2*invalid_psc + 2*res_change + 2){
482         return 50;
483     }else if(valid_psc > 2*invalid_psc)
484         return 25;
485     return 0;
486 }
487 #endif
488
489 #if CONFIG_H261_DEMUXER
490 static int h261_probe(AVProbeData *p)
491 {
492     uint32_t code= -1;
493     int i;
494     int valid_psc=0;
495     int invalid_psc=0;
496     int next_gn=0;
497     int src_fmt=0;
498     GetBitContext gb;
499
500     init_get_bits(&gb, p->buf, p->buf_size*8);
501
502     for(i=0; i<p->buf_size*8; i++){
503         code = (code<<1) + get_bits1(&gb);
504         if ((code & 0xffff0000) == 0x10000) {
505             int gn= (code>>12)&0xf;
506             if(!gn)
507                 src_fmt= code&8;
508             if(gn != next_gn) invalid_psc++;
509             else              valid_psc++;
510
511             if(src_fmt){ // CIF
512                 next_gn= (gn+1     )%13;
513             }else{       //QCIF
514                 next_gn= (gn+1+!!gn)% 7;
515             }
516         }
517     }
518     if(valid_psc > 2*invalid_psc + 6){
519         return 50;
520     }else if(valid_psc > 2*invalid_psc + 2)
521         return 25;
522     return 0;
523 }
524 #endif
525
526 #if CONFIG_DTS_DEMUXER
527 #define DCA_MARKER_14B_BE 0x1FFFE800
528 #define DCA_MARKER_14B_LE 0xFF1F00E8
529 #define DCA_MARKER_RAW_BE 0x7FFE8001
530 #define DCA_MARKER_RAW_LE 0xFE7F0180
531 static int dts_probe(AVProbeData *p)
532 {
533     const uint8_t *buf, *bufp;
534     uint32_t state = -1;
535     int markers[3] = {0};
536     int sum, max;
537
538     buf = p->buf;
539
540     for(; buf < (p->buf+p->buf_size)-2; buf+=2) {
541         bufp = buf;
542         state = (state << 16) | bytestream_get_be16(&bufp);
543
544         /* regular bitstream */
545         if (state == DCA_MARKER_RAW_BE || state == DCA_MARKER_RAW_LE)
546             markers[0]++;
547
548         /* 14 bits big-endian bitstream */
549         if (state == DCA_MARKER_14B_BE)
550             if ((bytestream_get_be16(&bufp) & 0xFFF0) == 0x07F0)
551                 markers[1]++;
552
553         /* 14 bits little-endian bitstream */
554         if (state == DCA_MARKER_14B_LE)
555             if ((bytestream_get_be16(&bufp) & 0xF0FF) == 0xF007)
556                 markers[2]++;
557     }
558     sum = markers[0] + markers[1] + markers[2];
559     max = markers[1] > markers[0];
560     max = markers[2] > markers[max] ? 2 : max;
561     if (markers[max] > 3 && p->buf_size / markers[max] < 32*1024 &&
562         markers[max] * 4 > sum * 3)
563         return AVPROBE_SCORE_MAX/2+1;
564
565     return 0;
566 }
567 #endif
568
569 #if CONFIG_DIRAC_DEMUXER
570 static int dirac_probe(AVProbeData *p)
571 {
572     if (AV_RL32(p->buf) == MKTAG('B', 'B', 'C', 'D'))
573         return AVPROBE_SCORE_MAX;
574     else
575         return 0;
576 }
577 #endif
578
579 #if CONFIG_DNXHD_DEMUXER
580 static int dnxhd_probe(AVProbeData *p)
581 {
582     static const uint8_t header[] = {0x00,0x00,0x02,0x80,0x01};
583     int w, h, compression_id;
584     if (p->buf_size < 0x2c)
585         return 0;
586     if (memcmp(p->buf, header, 5))
587         return 0;
588     h = AV_RB16(p->buf + 0x18);
589     w = AV_RB16(p->buf + 0x1a);
590     if (!w || !h)
591         return 0;
592     compression_id = AV_RB32(p->buf + 0x28);
593     if (compression_id < 1237 || compression_id > 1253)
594         return 0;
595     return AVPROBE_SCORE_MAX;
596 }
597 #endif
598
599 #if CONFIG_AC3_DEMUXER || CONFIG_EAC3_DEMUXER
600 static int ac3_eac3_probe(AVProbeData *p, enum CodecID expected_codec_id)
601 {
602     int max_frames, first_frames = 0, frames;
603     uint8_t *buf, *buf2, *end;
604     AC3HeaderInfo hdr;
605     GetBitContext gbc;
606     enum CodecID codec_id = CODEC_ID_AC3;
607
608     max_frames = 0;
609     buf = p->buf;
610     end = buf + p->buf_size;
611
612     for(; buf < end; buf++) {
613         buf2 = buf;
614
615         for(frames = 0; buf2 < end; frames++) {
616             init_get_bits(&gbc, buf2, 54);
617             if(ff_ac3_parse_header(&gbc, &hdr) < 0)
618                 break;
619             if(buf2 + hdr.frame_size > end ||
620                av_crc(av_crc_get_table(AV_CRC_16_ANSI), 0, buf2 + 2, hdr.frame_size - 2))
621                 break;
622             if (hdr.bitstream_id > 10)
623                 codec_id = CODEC_ID_EAC3;
624             buf2 += hdr.frame_size;
625         }
626         max_frames = FFMAX(max_frames, frames);
627         if(buf == p->buf)
628             first_frames = frames;
629     }
630     if(codec_id != expected_codec_id) return 0;
631     // keep this in sync with mp3 probe, both need to avoid
632     // issues with MPEG-files!
633     if   (first_frames>=4) return AVPROBE_SCORE_MAX/2+1;
634     else if(max_frames>500)return AVPROBE_SCORE_MAX/2;
635     else if(max_frames>=4) return AVPROBE_SCORE_MAX/4;
636     else if(max_frames>=1) return 1;
637     else                   return 0;
638 }
639 #endif
640
641 #if CONFIG_AC3_DEMUXER
642 static int ac3_probe(AVProbeData *p)
643 {
644     return ac3_eac3_probe(p, CODEC_ID_AC3);
645 }
646 #endif
647
648 #if CONFIG_EAC3_DEMUXER
649 static int eac3_probe(AVProbeData *p)
650 {
651     return ac3_eac3_probe(p, CODEC_ID_EAC3);
652 }
653 #endif
654
655 #if CONFIG_AAC_DEMUXER
656 static int adts_aac_probe(AVProbeData *p)
657 {
658     int max_frames = 0, first_frames = 0;
659     int fsize, frames;
660     uint8_t *buf0 = p->buf;
661     uint8_t *buf2;
662     uint8_t *buf;
663     uint8_t *end = buf0 + p->buf_size - 7;
664
665     if (ff_id3v2_match(buf0)) {
666         buf0 += ff_id3v2_tag_len(buf0);
667     }
668     buf = buf0;
669
670     for(; buf < end; buf= buf2+1) {
671         buf2 = buf;
672
673         for(frames = 0; buf2 < end; frames++) {
674             uint32_t header = AV_RB16(buf2);
675             if((header&0xFFF6) != 0xFFF0)
676                 break;
677             fsize = (AV_RB32(buf2+3)>>13) & 0x8FFF;
678             if(fsize < 7)
679                 break;
680             buf2 += fsize;
681         }
682         max_frames = FFMAX(max_frames, frames);
683         if(buf == buf0)
684             first_frames= frames;
685     }
686     if   (first_frames>=3) return AVPROBE_SCORE_MAX/2+1;
687     else if(max_frames>500)return AVPROBE_SCORE_MAX/2;
688     else if(max_frames>=3) return AVPROBE_SCORE_MAX/4;
689     else if(max_frames>=1) return 1;
690     else                   return 0;
691 }
692
693 static int adts_aac_read_header(AVFormatContext *s,
694                                 AVFormatParameters *ap)
695 {
696     AVStream *st;
697
698     st = av_new_stream(s, 0);
699     if (!st)
700         return AVERROR(ENOMEM);
701
702     st->codec->codec_type = CODEC_TYPE_AUDIO;
703     st->codec->codec_id = s->iformat->value;
704     st->need_parsing = AVSTREAM_PARSE_FULL;
705
706     ff_id3v1_read(s);
707     ff_id3v2_read(s);
708
709     return 0;
710 }
711
712 #endif
713
714 /* Note: Do not forget to add new entries to the Makefile as well. */
715
716 #if CONFIG_AAC_DEMUXER
717 AVInputFormat aac_demuxer = {
718     "aac",
719     NULL_IF_CONFIG_SMALL("raw ADTS AAC"),
720     0,
721     adts_aac_probe,
722     adts_aac_read_header,
723     ff_raw_read_partial_packet,
724     .flags= AVFMT_GENERIC_INDEX,
725     .extensions = "aac",
726     .value = CODEC_ID_AAC,
727 };
728 #endif
729
730 #if CONFIG_AC3_DEMUXER
731 AVInputFormat ac3_demuxer = {
732     "ac3",
733     NULL_IF_CONFIG_SMALL("raw AC-3"),
734     0,
735     ac3_probe,
736     audio_read_header,
737     ff_raw_read_partial_packet,
738     .flags= AVFMT_GENERIC_INDEX,
739     .extensions = "ac3",
740     .value = CODEC_ID_AC3,
741 };
742 #endif
743
744 #if CONFIG_AC3_MUXER
745 AVOutputFormat ac3_muxer = {
746     "ac3",
747     NULL_IF_CONFIG_SMALL("raw AC-3"),
748     "audio/x-ac3",
749     "ac3",
750     0,
751     CODEC_ID_AC3,
752     CODEC_ID_NONE,
753     NULL,
754     raw_write_packet,
755     .flags= AVFMT_NOTIMESTAMPS,
756 };
757 #endif
758
759 #if CONFIG_DIRAC_DEMUXER
760 AVInputFormat dirac_demuxer = {
761     "dirac",
762     NULL_IF_CONFIG_SMALL("raw Dirac"),
763     0,
764     dirac_probe,
765     video_read_header,
766     ff_raw_read_partial_packet,
767     .flags= AVFMT_GENERIC_INDEX,
768     .value = CODEC_ID_DIRAC,
769 };
770 #endif
771
772 #if CONFIG_DIRAC_MUXER
773 AVOutputFormat dirac_muxer = {
774     "dirac",
775     NULL_IF_CONFIG_SMALL("raw Dirac"),
776     NULL,
777     "drc",
778     0,
779     CODEC_ID_NONE,
780     CODEC_ID_DIRAC,
781     NULL,
782     raw_write_packet,
783     .flags= AVFMT_NOTIMESTAMPS,
784 };
785 #endif
786
787 #if CONFIG_DNXHD_DEMUXER
788 AVInputFormat dnxhd_demuxer = {
789     "dnxhd",
790     NULL_IF_CONFIG_SMALL("raw DNxHD (SMPTE VC-3)"),
791     0,
792     dnxhd_probe,
793     video_read_header,
794     ff_raw_read_partial_packet,
795     .flags= AVFMT_GENERIC_INDEX,
796     .value = CODEC_ID_DNXHD,
797 };
798 #endif
799
800 #if CONFIG_DNXHD_MUXER
801 AVOutputFormat dnxhd_muxer = {
802     "dnxhd",
803     NULL_IF_CONFIG_SMALL("raw DNxHD (SMPTE VC-3)"),
804     NULL,
805     "dnxhd",
806     0,
807     CODEC_ID_NONE,
808     CODEC_ID_DNXHD,
809     NULL,
810     raw_write_packet,
811     .flags= AVFMT_NOTIMESTAMPS,
812 };
813 #endif
814
815 #if CONFIG_DTS_DEMUXER
816 AVInputFormat dts_demuxer = {
817     "dts",
818     NULL_IF_CONFIG_SMALL("raw DTS"),
819     0,
820     dts_probe,
821     audio_read_header,
822     ff_raw_read_partial_packet,
823     .flags= AVFMT_GENERIC_INDEX,
824     .extensions = "dts",
825     .value = CODEC_ID_DTS,
826 };
827 #endif
828
829 #if CONFIG_DTS_MUXER
830 AVOutputFormat dts_muxer = {
831     "dts",
832     NULL_IF_CONFIG_SMALL("raw DTS"),
833     "audio/x-dca",
834     "dts",
835     0,
836     CODEC_ID_DTS,
837     CODEC_ID_NONE,
838     NULL,
839     raw_write_packet,
840     .flags= AVFMT_NOTIMESTAMPS,
841 };
842 #endif
843
844 #if CONFIG_EAC3_DEMUXER
845 AVInputFormat eac3_demuxer = {
846     "eac3",
847     NULL_IF_CONFIG_SMALL("raw E-AC-3"),
848     0,
849     eac3_probe,
850     audio_read_header,
851     ff_raw_read_partial_packet,
852     .flags= AVFMT_GENERIC_INDEX,
853     .extensions = "eac3",
854     .value = CODEC_ID_EAC3,
855 };
856 #endif
857
858 #if CONFIG_EAC3_MUXER
859 AVOutputFormat eac3_muxer = {
860     "eac3",
861     NULL_IF_CONFIG_SMALL("raw E-AC-3"),
862     "audio/x-eac3",
863     "eac3",
864     0,
865     CODEC_ID_EAC3,
866     CODEC_ID_NONE,
867     NULL,
868     raw_write_packet,
869     .flags= AVFMT_NOTIMESTAMPS,
870 };
871 #endif
872
873 #if CONFIG_GSM_DEMUXER
874 AVInputFormat gsm_demuxer = {
875     "gsm",
876     NULL_IF_CONFIG_SMALL("raw GSM"),
877     0,
878     NULL,
879     audio_read_header,
880     ff_raw_read_partial_packet,
881     .flags= AVFMT_GENERIC_INDEX,
882     .extensions = "gsm",
883     .value = CODEC_ID_GSM,
884 };
885 #endif
886
887 #if CONFIG_H261_DEMUXER
888 AVInputFormat h261_demuxer = {
889     "h261",
890     NULL_IF_CONFIG_SMALL("raw H.261"),
891     0,
892     h261_probe,
893     video_read_header,
894     ff_raw_read_partial_packet,
895     .flags= AVFMT_GENERIC_INDEX,
896     .extensions = "h261",
897     .value = CODEC_ID_H261,
898 };
899 #endif
900
901 #if CONFIG_H261_MUXER
902 AVOutputFormat h261_muxer = {
903     "h261",
904     NULL_IF_CONFIG_SMALL("raw H.261"),
905     "video/x-h261",
906     "h261",
907     0,
908     CODEC_ID_NONE,
909     CODEC_ID_H261,
910     NULL,
911     raw_write_packet,
912     .flags= AVFMT_NOTIMESTAMPS,
913 };
914 #endif
915
916 #if CONFIG_H263_DEMUXER
917 AVInputFormat h263_demuxer = {
918     "h263",
919     NULL_IF_CONFIG_SMALL("raw H.263"),
920     0,
921     h263_probe,
922     video_read_header,
923     ff_raw_read_partial_packet,
924     .flags= AVFMT_GENERIC_INDEX,
925 //    .extensions = "h263", //FIXME remove after writing mpeg4_probe
926     .value = CODEC_ID_H263,
927 };
928 #endif
929
930 #if CONFIG_H263_MUXER
931 AVOutputFormat h263_muxer = {
932     "h263",
933     NULL_IF_CONFIG_SMALL("raw H.263"),
934     "video/x-h263",
935     "h263",
936     0,
937     CODEC_ID_NONE,
938     CODEC_ID_H263,
939     NULL,
940     raw_write_packet,
941     .flags= AVFMT_NOTIMESTAMPS,
942 };
943 #endif
944
945 #if CONFIG_H264_DEMUXER
946 AVInputFormat h264_demuxer = {
947     "h264",
948     NULL_IF_CONFIG_SMALL("raw H.264 video format"),
949     0,
950     h264_probe,
951     video_read_header,
952     ff_raw_read_partial_packet,
953     .flags= AVFMT_GENERIC_INDEX,
954     .extensions = "h26l,h264,264", //FIXME remove after writing mpeg4_probe
955     .value = CODEC_ID_H264,
956 };
957 #endif
958
959 #if CONFIG_H264_MUXER
960 AVOutputFormat h264_muxer = {
961     "h264",
962     NULL_IF_CONFIG_SMALL("raw H.264 video format"),
963     NULL,
964     "h264",
965     0,
966     CODEC_ID_NONE,
967     CODEC_ID_H264,
968     NULL,
969     raw_write_packet,
970     .flags= AVFMT_NOTIMESTAMPS,
971 };
972 #endif
973
974 #if CONFIG_INGENIENT_DEMUXER
975 AVInputFormat ingenient_demuxer = {
976     "ingenient",
977     NULL_IF_CONFIG_SMALL("raw Ingenient MJPEG"),
978     0,
979     NULL,
980     video_read_header,
981     ingenient_read_packet,
982     .flags= AVFMT_GENERIC_INDEX,
983     .extensions = "cgi", // FIXME
984     .value = CODEC_ID_MJPEG,
985 };
986 #endif
987
988 #if CONFIG_M4V_DEMUXER
989 AVInputFormat m4v_demuxer = {
990     "m4v",
991     NULL_IF_CONFIG_SMALL("raw MPEG-4 video format"),
992     0,
993     mpeg4video_probe, /** probing for MPEG-4 data */
994     video_read_header,
995     ff_raw_read_partial_packet,
996     .flags= AVFMT_GENERIC_INDEX,
997     .extensions = "m4v",
998     .value = CODEC_ID_MPEG4,
999 };
1000 #endif
1001
1002 #if CONFIG_M4V_MUXER
1003 AVOutputFormat m4v_muxer = {
1004     "m4v",
1005     NULL_IF_CONFIG_SMALL("raw MPEG-4 video format"),
1006     NULL,
1007     "m4v",
1008     0,
1009     CODEC_ID_NONE,
1010     CODEC_ID_MPEG4,
1011     NULL,
1012     raw_write_packet,
1013     .flags= AVFMT_NOTIMESTAMPS,
1014 };
1015 #endif
1016
1017 #if CONFIG_MJPEG_DEMUXER
1018 AVInputFormat mjpeg_demuxer = {
1019     "mjpeg",
1020     NULL_IF_CONFIG_SMALL("raw MJPEG video"),
1021     0,
1022     NULL,
1023     video_read_header,
1024     ff_raw_read_partial_packet,
1025     .flags= AVFMT_GENERIC_INDEX,
1026     .extensions = "mjpg,mjpeg",
1027     .value = CODEC_ID_MJPEG,
1028 };
1029 #endif
1030
1031 #if CONFIG_MJPEG_MUXER
1032 AVOutputFormat mjpeg_muxer = {
1033     "mjpeg",
1034     NULL_IF_CONFIG_SMALL("raw MJPEG video"),
1035     "video/x-mjpeg",
1036     "mjpg,mjpeg",
1037     0,
1038     CODEC_ID_NONE,
1039     CODEC_ID_MJPEG,
1040     NULL,
1041     raw_write_packet,
1042     .flags= AVFMT_NOTIMESTAMPS,
1043 };
1044 #endif
1045
1046 #if CONFIG_MLP_DEMUXER
1047 AVInputFormat mlp_demuxer = {
1048     "mlp",
1049     NULL_IF_CONFIG_SMALL("raw MLP"),
1050     0,
1051     NULL,
1052     audio_read_header,
1053     ff_raw_read_partial_packet,
1054     .flags= AVFMT_GENERIC_INDEX,
1055     .extensions = "mlp",
1056     .value = CODEC_ID_MLP,
1057 };
1058 #endif
1059
1060 #if CONFIG_MLP_MUXER
1061 AVOutputFormat mlp_muxer = {
1062     "mlp",
1063     NULL_IF_CONFIG_SMALL("raw MLP"),
1064     NULL,
1065     "mlp",
1066     0,
1067     CODEC_ID_MLP,
1068     CODEC_ID_NONE,
1069     NULL,
1070     raw_write_packet,
1071     .flags= AVFMT_NOTIMESTAMPS,
1072 };
1073 #endif
1074
1075 #if CONFIG_TRUEHD_DEMUXER
1076 AVInputFormat truehd_demuxer = {
1077     "truehd",
1078     NULL_IF_CONFIG_SMALL("raw TrueHD"),
1079     0,
1080     NULL,
1081     audio_read_header,
1082     ff_raw_read_partial_packet,
1083     .flags= AVFMT_GENERIC_INDEX,
1084     .extensions = "thd",
1085     .value = CODEC_ID_TRUEHD,
1086 };
1087 #endif
1088
1089 #if CONFIG_TRUEHD_MUXER
1090 AVOutputFormat truehd_muxer = {
1091     "truehd",
1092     NULL_IF_CONFIG_SMALL("raw TrueHD"),
1093     NULL,
1094     "thd",
1095     0,
1096     CODEC_ID_TRUEHD,
1097     CODEC_ID_NONE,
1098     NULL,
1099     raw_write_packet,
1100     .flags= AVFMT_NOTIMESTAMPS,
1101 };
1102 #endif
1103
1104 #if CONFIG_MPEG1VIDEO_MUXER
1105 AVOutputFormat mpeg1video_muxer = {
1106     "mpeg1video",
1107     NULL_IF_CONFIG_SMALL("raw MPEG-1 video"),
1108     "video/x-mpeg",
1109     "mpg,mpeg,m1v",
1110     0,
1111     CODEC_ID_NONE,
1112     CODEC_ID_MPEG1VIDEO,
1113     NULL,
1114     raw_write_packet,
1115     .flags= AVFMT_NOTIMESTAMPS,
1116 };
1117 #endif
1118
1119 #if CONFIG_MPEG2VIDEO_MUXER
1120 AVOutputFormat mpeg2video_muxer = {
1121     "mpeg2video",
1122     NULL_IF_CONFIG_SMALL("raw MPEG-2 video"),
1123     NULL,
1124     "m2v",
1125     0,
1126     CODEC_ID_NONE,
1127     CODEC_ID_MPEG2VIDEO,
1128     NULL,
1129     raw_write_packet,
1130     .flags= AVFMT_NOTIMESTAMPS,
1131 };
1132 #endif
1133
1134 #if CONFIG_MPEGVIDEO_DEMUXER
1135 AVInputFormat mpegvideo_demuxer = {
1136     "mpegvideo",
1137     NULL_IF_CONFIG_SMALL("raw MPEG video"),
1138     0,
1139     mpegvideo_probe,
1140     video_read_header,
1141     ff_raw_read_partial_packet,
1142     .flags= AVFMT_GENERIC_INDEX,
1143     .value = CODEC_ID_MPEG1VIDEO,
1144 };
1145 #endif
1146
1147 #if CONFIG_CAVSVIDEO_DEMUXER
1148 AVInputFormat cavsvideo_demuxer = {
1149     "cavsvideo",
1150     NULL_IF_CONFIG_SMALL("raw Chinese AVS video"),
1151     0,
1152     cavsvideo_probe,
1153     video_read_header,
1154     ff_raw_read_partial_packet,
1155     .flags= AVFMT_GENERIC_INDEX,
1156     .value = CODEC_ID_CAVS,
1157 };
1158 #endif
1159
1160 #if CONFIG_NULL_MUXER
1161 AVOutputFormat null_muxer = {
1162     "null",
1163     NULL_IF_CONFIG_SMALL("raw null video format"),
1164     NULL,
1165     NULL,
1166     0,
1167 #if HAVE_BIGENDIAN
1168     CODEC_ID_PCM_S16BE,
1169 #else
1170     CODEC_ID_PCM_S16LE,
1171 #endif
1172     CODEC_ID_RAWVIDEO,
1173     NULL,
1174     null_write_packet,
1175     .flags = AVFMT_NOFILE | AVFMT_RAWPICTURE | AVFMT_NOTIMESTAMPS,
1176 };
1177 #endif
1178
1179 #if CONFIG_RAWVIDEO_DEMUXER
1180 AVInputFormat rawvideo_demuxer = {
1181     "rawvideo",
1182     NULL_IF_CONFIG_SMALL("raw video format"),
1183     0,
1184     NULL,
1185     raw_read_header,
1186     rawvideo_read_packet,
1187     .flags= AVFMT_GENERIC_INDEX,
1188     .extensions = "yuv,cif,qcif,rgb",
1189     .value = CODEC_ID_RAWVIDEO,
1190 };
1191 #endif
1192
1193 #if CONFIG_RAWVIDEO_MUXER
1194 AVOutputFormat rawvideo_muxer = {
1195     "rawvideo",
1196     NULL_IF_CONFIG_SMALL("raw video format"),
1197     NULL,
1198     "yuv,rgb",
1199     0,
1200     CODEC_ID_NONE,
1201     CODEC_ID_RAWVIDEO,
1202     NULL,
1203     raw_write_packet,
1204     .flags= AVFMT_NOTIMESTAMPS,
1205 };
1206 #endif
1207
1208 #if CONFIG_ROQ_MUXER
1209 AVOutputFormat roq_muxer =
1210 {
1211     "RoQ",
1212     NULL_IF_CONFIG_SMALL("raw id RoQ format"),
1213     NULL,
1214     "roq",
1215     0,
1216     CODEC_ID_ROQ_DPCM,
1217     CODEC_ID_ROQ,
1218     roq_write_header,
1219     raw_write_packet,
1220 };
1221 #endif
1222
1223 #if CONFIG_SHORTEN_DEMUXER
1224 AVInputFormat shorten_demuxer = {
1225     "shn",
1226     NULL_IF_CONFIG_SMALL("raw Shorten"),
1227     0,
1228     NULL,
1229     audio_read_header,
1230     ff_raw_read_partial_packet,
1231     .flags= AVFMT_GENERIC_INDEX,
1232     .extensions = "shn",
1233     .value = CODEC_ID_SHORTEN,
1234 };
1235 #endif
1236
1237 #if CONFIG_VC1_DEMUXER
1238 AVInputFormat vc1_demuxer = {
1239     "vc1",
1240     NULL_IF_CONFIG_SMALL("raw VC-1"),
1241     0,
1242     NULL /* vc1_probe */,
1243     video_read_header,
1244     ff_raw_read_partial_packet,
1245     .extensions = "vc1",
1246     .value = CODEC_ID_VC1,
1247 };
1248 #endif
1249
1250 /* PCM formats */
1251
1252 #define PCMINPUTDEF(name, long_name, ext, codec) \
1253 AVInputFormat pcm_ ## name ## _demuxer = {\
1254     #name,\
1255     NULL_IF_CONFIG_SMALL(long_name),\
1256     0,\
1257     NULL,\
1258     raw_read_header,\
1259     raw_read_packet,\
1260     NULL,\
1261     pcm_read_seek,\
1262     .flags= AVFMT_GENERIC_INDEX,\
1263     .extensions = ext,\
1264     .value = codec,\
1265 };
1266
1267 #define PCMOUTPUTDEF(name, long_name, ext, codec) \
1268 AVOutputFormat pcm_ ## name ## _muxer = {\
1269     #name,\
1270     NULL_IF_CONFIG_SMALL(long_name),\
1271     NULL,\
1272     ext,\
1273     0,\
1274     codec,\
1275     CODEC_ID_NONE,\
1276     NULL,\
1277     raw_write_packet,\
1278     .flags= AVFMT_NOTIMESTAMPS,\
1279 };
1280
1281
1282 #if  !CONFIG_MUXERS && CONFIG_DEMUXERS
1283 #define PCMDEF(name, long_name, ext, codec) \
1284         PCMINPUTDEF(name, long_name, ext, codec)
1285 #elif CONFIG_MUXERS && !CONFIG_DEMUXERS
1286 #define PCMDEF(name, long_name, ext, codec) \
1287         PCMOUTPUTDEF(name, long_name, ext, codec)
1288 #elif CONFIG_MUXERS && CONFIG_DEMUXERS
1289 #define PCMDEF(name, long_name, ext, codec) \
1290         PCMINPUTDEF(name, long_name, ext, codec)\
1291         PCMOUTPUTDEF(name, long_name, ext, codec)
1292 #else
1293 #define PCMDEF(name, long_name, ext, codec)
1294 #endif
1295
1296 #if HAVE_BIGENDIAN
1297 #define BE_DEF(s) s
1298 #define LE_DEF(s) NULL
1299 #else
1300 #define BE_DEF(s) NULL
1301 #define LE_DEF(s) s
1302 #endif
1303
1304 PCMDEF(f64be, "PCM 64 bit floating-point big-endian format",
1305        NULL, CODEC_ID_PCM_F64BE)
1306
1307 PCMDEF(f64le, "PCM 64 bit floating-point little-endian format",
1308        NULL, CODEC_ID_PCM_F64LE)
1309
1310 PCMDEF(f32be, "PCM 32 bit floating-point big-endian format",
1311        NULL, CODEC_ID_PCM_F32BE)
1312
1313 PCMDEF(f32le, "PCM 32 bit floating-point little-endian format",
1314        NULL, CODEC_ID_PCM_F32LE)
1315
1316 PCMDEF(s32be, "PCM signed 32 bit big-endian format",
1317        NULL, CODEC_ID_PCM_S32BE)
1318
1319 PCMDEF(s32le, "PCM signed 32 bit little-endian format",
1320        NULL, CODEC_ID_PCM_S32LE)
1321
1322 PCMDEF(s24be, "PCM signed 24 bit big-endian format",
1323        NULL, CODEC_ID_PCM_S24BE)
1324
1325 PCMDEF(s24le, "PCM signed 24 bit little-endian format",
1326        NULL, CODEC_ID_PCM_S24LE)
1327
1328 PCMDEF(s16be, "PCM signed 16 bit big-endian format",
1329        BE_DEF("sw"), CODEC_ID_PCM_S16BE)
1330
1331 PCMDEF(s16le, "PCM signed 16 bit little-endian format",
1332        LE_DEF("sw"), CODEC_ID_PCM_S16LE)
1333
1334 PCMDEF(s8, "PCM signed 8 bit format",
1335        "sb", CODEC_ID_PCM_S8)
1336
1337 PCMDEF(u32be, "PCM unsigned 32 bit big-endian format",
1338        NULL, CODEC_ID_PCM_U32BE)
1339
1340 PCMDEF(u32le, "PCM unsigned 32 bit little-endian format",
1341        NULL, CODEC_ID_PCM_U32LE)
1342
1343 PCMDEF(u24be, "PCM unsigned 24 bit big-endian format",
1344        NULL, CODEC_ID_PCM_U24BE)
1345
1346 PCMDEF(u24le, "PCM unsigned 24 bit little-endian format",
1347        NULL, CODEC_ID_PCM_U24LE)
1348
1349 PCMDEF(u16be, "PCM unsigned 16 bit big-endian format",
1350        BE_DEF("uw"), CODEC_ID_PCM_U16BE)
1351
1352 PCMDEF(u16le, "PCM unsigned 16 bit little-endian format",
1353        LE_DEF("uw"), CODEC_ID_PCM_U16LE)
1354
1355 PCMDEF(u8, "PCM unsigned 8 bit format",
1356        "ub", CODEC_ID_PCM_U8)
1357
1358 PCMDEF(alaw, "PCM A-law format",
1359        "al", CODEC_ID_PCM_ALAW)
1360
1361 PCMDEF(mulaw, "PCM mu-law format",
1362        "ul", CODEC_ID_PCM_MULAW)