Fill out some mandatory fields in the Codec structure. Also add fields in
[libav.git] / libavformat / raw.c
CommitLineData
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1/*
2 * RAW encoder and decoder
19720f15 3 * Copyright (c) 2001 Fabrice Bellard.
de6d9b64 4 *
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5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
de6d9b64 9 *
19720f15 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
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15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
de6d9b64 18 */
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19#include "avformat.h"
20
764ef400 21#ifdef CONFIG_ENCODERS
de6d9b64 22/* simple formats */
5c91a675 23static int raw_write_header(struct AVFormatContext *s)
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24{
25 return 0;
26}
27
e928649b 28static int raw_write_packet(struct AVFormatContext *s, AVPacket *pkt)
de6d9b64 29{
e928649b 30 put_buffer(&s->pb, pkt->data, pkt->size);
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31 put_flush_packet(&s->pb);
32 return 0;
33}
34
5c91a675 35static int raw_write_trailer(struct AVFormatContext *s)
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36{
37 return 0;
38}
764ef400 39#endif //CONFIG_ENCODERS
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40
41/* raw input */
0c1a9eda 42static int raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
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43{
44 AVStream *st;
c9a65ca8 45 int id;
de6d9b64 46
c9a65ca8 47 st = av_new_stream(s, 0);
de6d9b64 48 if (!st)
c9a65ca8 49 return AVERROR_NOMEM;
de6d9b64 50 if (ap) {
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51 id = s->iformat->value;
52 if (id == CODEC_ID_RAWVIDEO) {
de6d9b64 53 st->codec.codec_type = CODEC_TYPE_VIDEO;
de6d9b64 54 } else {
c9a65ca8 55 st->codec.codec_type = CODEC_TYPE_AUDIO;
de6d9b64 56 }
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57 st->codec.codec_id = id;
58
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59 switch(st->codec.codec_type) {
60 case CODEC_TYPE_AUDIO:
61 st->codec.sample_rate = ap->sample_rate;
62 st->codec.channels = ap->channels;
595bf4ef 63 av_set_pts_info(st, 64, 1, st->codec.sample_rate);
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64 break;
65 case CODEC_TYPE_VIDEO:
c0df9d75 66 av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
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67 st->codec.width = ap->width;
68 st->codec.height = ap->height;
63167088 69 st->codec.pix_fmt = ap->pix_fmt;
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70 break;
71 default:
27e084bd 72 return -1;
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73 }
74 } else {
27e084bd 75 return -1;
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76 }
77 return 0;
78}
79
2e93e3aa 80#define RAW_PACKET_SIZE 1024
de6d9b64 81
5c91a675 82static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
de6d9b64 83{
7866eeff 84 int ret, size;
2a6874fd 85 // AVStream *st = s->streams[0];
7866eeff 86
231dd3f3 87 size= RAW_PACKET_SIZE;
de6d9b64 88
7866eeff 89 if (av_new_packet(pkt, size) < 0)
0bd586c5 90 return AVERROR_IO;
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91
92 pkt->stream_index = 0;
7866eeff 93 ret = get_buffer(&s->pb, pkt->data, size);
2e93e3aa 94 if (ret <= 0) {
de6d9b64 95 av_free_packet(pkt);
0bd586c5 96 return AVERROR_IO;
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97 }
98 /* note: we need to modify the packet size here to handle the last
99 packet */
100 pkt->size = ret;
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101 return ret;
102}
103
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104static int raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
105{
106 int ret, size;
107
108 size = RAW_PACKET_SIZE;
109
110 if (av_new_packet(pkt, size) < 0)
0bd586c5 111 return AVERROR_IO;
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112
113 pkt->stream_index = 0;
114 ret = get_partial_buffer(&s->pb, pkt->data, size);
115 if (ret <= 0) {
116 av_free_packet(pkt);
0bd586c5 117 return AVERROR_IO;
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118 }
119 pkt->size = ret;
120 return ret;
121}
122
5c91a675 123static int raw_read_close(AVFormatContext *s)
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124{
125 return 0;
126}
127
4986a429 128int pcm_read_seek(AVFormatContext *s,
7b3c1382 129 int stream_index, int64_t timestamp, int flags)
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130{
131 AVStream *st;
132 int block_align, byte_rate;
133 int64_t pos;
134
135 st = s->streams[0];
136 switch(st->codec.codec_id) {
137 case CODEC_ID_PCM_S16LE:
138 case CODEC_ID_PCM_S16BE:
139 case CODEC_ID_PCM_U16LE:
140 case CODEC_ID_PCM_U16BE:
141 block_align = 2 * st->codec.channels;
142 byte_rate = block_align * st->codec.sample_rate;
143 break;
144 case CODEC_ID_PCM_S8:
145 case CODEC_ID_PCM_U8:
146 case CODEC_ID_PCM_MULAW:
147 case CODEC_ID_PCM_ALAW:
148 block_align = st->codec.channels;
149 byte_rate = block_align * st->codec.sample_rate;
150 break;
151 default:
152 block_align = st->codec.block_align;
153 byte_rate = st->codec.bit_rate / 8;
154 break;
155 }
156
157 if (block_align <= 0 || byte_rate <= 0)
158 return -1;
159
160 /* compute the position by aligning it to block_align */
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161 pos = av_rescale_rnd(timestamp * byte_rate,
162 st->time_base.num,
163 st->time_base.den * (int64_t)block_align,
164 (flags & AVSEEK_FLAG_BACKWARD) ? AV_ROUND_DOWN : AV_ROUND_UP);
165 pos *= block_align;
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166
167 /* recompute exact position */
77405fc8 168 st->cur_dts = av_rescale(pos, st->time_base.den, byte_rate * (int64_t)st->time_base.num);
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169 url_fseek(&s->pb, pos + s->data_offset, SEEK_SET);
170 return 0;
171}
172
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173/* ac3 read */
174static int ac3_read_header(AVFormatContext *s,
175 AVFormatParameters *ap)
176{
177 AVStream *st;
178
179 st = av_new_stream(s, 0);
180 if (!st)
181 return AVERROR_NOMEM;
182
183 st->codec.codec_type = CODEC_TYPE_AUDIO;
184 st->codec.codec_id = CODEC_ID_AC3;
4986a429 185 st->need_parsing = 1;
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186 /* the parameters will be extracted from the compressed bitstream */
187 return 0;
188}
189
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190static int shorten_read_header(AVFormatContext *s,
191 AVFormatParameters *ap)
192{
193 AVStream *st;
194
195 st = av_new_stream(s, 0);
196 if (!st)
197 return AVERROR_NOMEM;
198 st->codec.codec_type = CODEC_TYPE_AUDIO;
199 st->codec.codec_id = CODEC_ID_SHORTEN;
200 st->need_parsing = 1;
201 /* the parameters will be extracted from the compressed bitstream */
202 return 0;
203}
204
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205/* dts read */
206static int dts_read_header(AVFormatContext *s,
207 AVFormatParameters *ap)
208{
209 AVStream *st;
210
211 st = av_new_stream(s, 0);
212 if (!st)
213 return AVERROR_NOMEM;
214
215 st->codec.codec_type = CODEC_TYPE_AUDIO;
216 st->codec.codec_id = CODEC_ID_DTS;
217 st->need_parsing = 1;
218 /* the parameters will be extracted from the compressed bitstream */
219 return 0;
220}
221
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222/* mpeg1/h263 input */
223static int video_read_header(AVFormatContext *s,
224 AVFormatParameters *ap)
225{
226 AVStream *st;
227
c9a65ca8 228 st = av_new_stream(s, 0);
de6d9b64 229 if (!st)
c9a65ca8 230 return AVERROR_NOMEM;
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231
232 st->codec.codec_type = CODEC_TYPE_VIDEO;
c9a65ca8 233 st->codec.codec_id = s->iformat->value;
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234 st->need_parsing = 1;
235
27e084bd 236 /* for mjpeg, specify frame rate */
7866eeff 237 /* for mpeg4 specify it too (most mpeg4 streams dont have the fixed_vop_rate set ...)*/
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238 if (st->codec.codec_id == CODEC_ID_MJPEG ||
239 st->codec.codec_id == CODEC_ID_MPEG4) {
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240 if (ap && ap->time_base.num) {
241 av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
27e084bd 242 } else {
c0df9d75 243 av_set_pts_info(st, 64, 1, 25);
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244 }
245 }
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246 return 0;
247}
248
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249#define SEQ_START_CODE 0x000001b3
250#define GOP_START_CODE 0x000001b8
251#define PICTURE_START_CODE 0x00000100
252
253/* XXX: improve that by looking at several start codes */
254static int mpegvideo_probe(AVProbeData *p)
255{
fa777321
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256 int code;
257 const uint8_t *d;
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258
259 /* we search the first start code. If it is a sequence, gop or
260 picture start code then we decide it is an mpeg video
261 stream. We do not send highest value to give a chance to mpegts */
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262 /* NOTE: the search range was restricted to avoid too many false
263 detections */
264
265 if (p->buf_size < 6)
266 return 0;
267 d = p->buf;
268 code = (d[0] << 24) | (d[1] << 16) | (d[2] << 8) | (d[3]);
269 if ((code & 0xffffff00) == 0x100) {
270 if (code == SEQ_START_CODE ||
271 code == GOP_START_CODE ||
272 code == PICTURE_START_CODE)
273 return 50 - 1;
274 else
275 return 0;
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276 }
277 return 0;
278}
279
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280static int h263_probe(AVProbeData *p)
281{
282 int code;
283 const uint8_t *d;
284
285 if (p->buf_size < 6)
286 return 0;
287 d = p->buf;
288 code = (d[0] << 14) | (d[1] << 6) | (d[2] >> 2);
289 if (code == 0x20) {
290 return 50;
291 }
292 return 0;
293}
294
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295static int h261_probe(AVProbeData *p)
296{
297 int code;
298 const uint8_t *d;
299
300 if (p->buf_size < 6)
301 return 0;
302 d = p->buf;
303 code = (d[0] << 12) | (d[1] << 4) | (d[2] >> 4);
304 if (code == 0x10) {
305 return 50;
306 }
307 return 0;
308}
309
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310AVInputFormat shorten_iformat = {
311 "shn",
312 "raw shn",
313 0,
314 NULL,
315 shorten_read_header,
316 raw_read_partial_packet,
317 raw_read_close,
318 .extensions = "shn",
319};
320
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321AVInputFormat ac3_iformat = {
322 "ac3",
323 "raw ac3",
324 0,
325 NULL,
cd66005d 326 ac3_read_header,
e15dec10 327 raw_read_partial_packet,
de6d9b64 328 raw_read_close,
bb76a117 329 .extensions = "ac3",
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330};
331
764ef400 332#ifdef CONFIG_ENCODERS
c9a65ca8 333AVOutputFormat ac3_oformat = {
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334 "ac3",
335 "raw ac3",
336 "audio/x-ac3",
337 "ac3",
c9a65ca8 338 0,
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339 CODEC_ID_AC3,
340 0,
341 raw_write_header,
342 raw_write_packet,
343 raw_write_trailer,
344};
764ef400 345#endif //CONFIG_ENCODERS
de6d9b64 346
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347AVInputFormat dts_iformat = {
348 "dts",
349 "raw dts",
350 0,
351 NULL,
352 dts_read_header,
353 raw_read_partial_packet,
354 raw_read_close,
355 .extensions = "dts",
356};
357
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358AVInputFormat h261_iformat = {
359 "h261",
360 "raw h261",
361 0,
362 h261_probe,
363 video_read_header,
364 raw_read_partial_packet,
365 raw_read_close,
366 .extensions = "h261",
367 .value = CODEC_ID_H261,
368};
369
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370#ifdef CONFIG_ENCODERS
371AVOutputFormat h261_oformat = {
372 "h261",
373 "raw h261",
374 "video/x-h261",
375 "h261",
376 0,
377 0,
378 CODEC_ID_H261,
379 raw_write_header,
380 raw_write_packet,
381 raw_write_trailer,
382};
383#endif //CONFIG_ENCODERS
384
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385AVInputFormat h263_iformat = {
386 "h263",
387 "raw h263",
388 0,
389 h263_probe,
390 video_read_header,
e15dec10 391 raw_read_partial_packet,
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392 raw_read_close,
393// .extensions = "h263", //FIXME remove after writing mpeg4_probe
394 .value = CODEC_ID_H263,
395};
396
764ef400 397#ifdef CONFIG_ENCODERS
c9a65ca8 398AVOutputFormat h263_oformat = {
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399 "h263",
400 "raw h263",
401 "video/x-h263",
402 "h263",
403 0,
c9a65ca8 404 0,
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405 CODEC_ID_H263,
406 raw_write_header,
407 raw_write_packet,
408 raw_write_trailer,
c9a65ca8 409};
764ef400 410#endif //CONFIG_ENCODERS
c9a65ca8 411
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412AVInputFormat m4v_iformat = {
413 "m4v",
414 "raw MPEG4 video format",
415 0,
2f0f5b20 416 NULL /*mpegvideo_probe*/,
7866eeff 417 video_read_header,
e15dec10 418 raw_read_partial_packet,
7866eeff 419 raw_read_close,
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420 .extensions = "m4v", //FIXME remove after writing mpeg4_probe
421 .value = CODEC_ID_MPEG4,
7866eeff
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422};
423
764ef400 424#ifdef CONFIG_ENCODERS
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425AVOutputFormat m4v_oformat = {
426 "m4v",
427 "raw MPEG4 video format",
428 NULL,
429 "m4v",
430 0,
431 CODEC_ID_NONE,
432 CODEC_ID_MPEG4,
433 raw_write_header,
434 raw_write_packet,
435 raw_write_trailer,
436};
764ef400 437#endif //CONFIG_ENCODERS
89b3d7c9 438
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439AVInputFormat h264_iformat = {
440 "h264",
441 "raw H264 video format",
442 0,
443 NULL /*mpegvideo_probe*/,
444 video_read_header,
e15dec10 445 raw_read_partial_packet,
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446 raw_read_close,
447 .extensions = "h26l,h264", //FIXME remove after writing mpeg4_probe
448 .value = CODEC_ID_H264,
449};
450
764ef400 451#ifdef CONFIG_ENCODERS
0da71265
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452AVOutputFormat h264_oformat = {
453 "h264",
454 "raw H264 video format",
455 NULL,
456 "h264",
457 0,
458 CODEC_ID_NONE,
459 CODEC_ID_H264,
460 raw_write_header,
461 raw_write_packet,
462 raw_write_trailer,
463};
764ef400 464#endif //CONFIG_ENCODERS
0da71265 465
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466AVInputFormat mpegvideo_iformat = {
467 "mpegvideo",
468 "MPEG video",
469 0,
470 mpegvideo_probe,
de6d9b64 471 video_read_header,
e15dec10 472 raw_read_partial_packet,
de6d9b64 473 raw_read_close,
bb76a117 474 .value = CODEC_ID_MPEG1VIDEO,
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475};
476
764ef400 477#ifdef CONFIG_ENCODERS
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478AVOutputFormat mpeg1video_oformat = {
479 "mpeg1video",
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480 "MPEG video",
481 "video/x-mpeg",
482 "mpg,mpeg",
483 0,
c9a65ca8 484 0,
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485 CODEC_ID_MPEG1VIDEO,
486 raw_write_header,
487 raw_write_packet,
488 raw_write_trailer,
de6d9b64 489};
764ef400 490#endif //CONFIG_ENCODERS
de6d9b64 491
6ec864da
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492#ifdef CONFIG_ENCODERS
493AVOutputFormat mpeg2video_oformat = {
494 "mpeg2video",
495 "MPEG2 video",
496 NULL,
497 "m2v",
498 0,
499 0,
500 CODEC_ID_MPEG2VIDEO,
501 raw_write_header,
502 raw_write_packet,
503 raw_write_trailer,
504};
505#endif //CONFIG_ENCODERS
506
c9a65ca8 507AVInputFormat mjpeg_iformat = {
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508 "mjpeg",
509 "MJPEG video",
27e084bd 510 0,
c9a65ca8 511 NULL,
27e084bd 512 video_read_header,
e15dec10 513 raw_read_partial_packet,
27e084bd 514 raw_read_close,
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515 .extensions = "mjpg,mjpeg",
516 .value = CODEC_ID_MJPEG,
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517};
518
764ef400 519#ifdef CONFIG_ENCODERS
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520AVOutputFormat mjpeg_oformat = {
521 "mjpeg",
522 "MJPEG video",
523 "video/x-mjpeg",
524 "mjpg,mjpeg",
5ed8fafc 525 0,
5ed8fafc 526 0,
c9a65ca8 527 CODEC_ID_MJPEG,
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528 raw_write_header,
529 raw_write_packet,
530 raw_write_trailer,
5ed8fafc 531};
764ef400 532#endif //CONFIG_ENCODERS
5ed8fafc 533
c9a65ca8 534/* pcm formats */
764ef400 535
4986a429 536#define PCMINPUTDEF(name, long_name, ext, codec) \
764ef400
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537AVInputFormat pcm_ ## name ## _iformat = {\
538 #name,\
539 long_name,\
540 0,\
541 NULL,\
542 raw_read_header,\
543 raw_read_packet,\
544 raw_read_close,\
4986a429 545 pcm_read_seek,\
764ef400
MM
546 .extensions = ext,\
547 .value = codec,\
548};
549
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550#if !defined(CONFIG_ENCODERS) && defined(CONFIG_DECODERS)
551
552#define PCMDEF(name, long_name, ext, codec) \
553 PCMINPUTDEF(name, long_name, ext, codec)
554
764ef400 555#else
5ed8fafc 556
c9a65ca8 557#define PCMDEF(name, long_name, ext, codec) \
4986a429 558 PCMINPUTDEF(name, long_name, ext, codec)\
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559\
560AVOutputFormat pcm_ ## name ## _oformat = {\
561 #name,\
562 long_name,\
563 NULL,\
564 ext,\
565 0,\
566 codec,\
567 0,\
568 raw_write_header,\
569 raw_write_packet,\
570 raw_write_trailer,\
5ed8fafc 571};
764ef400 572#endif //CONFIG_ENCODERS
5ed8fafc 573
5ed8fafc 574#ifdef WORDS_BIGENDIAN
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575#define BE_DEF(s) s
576#define LE_DEF(s) NULL
5ed8fafc 577#else
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578#define BE_DEF(s) NULL
579#define LE_DEF(s) s
5ed8fafc 580#endif
5ed8fafc 581
5ed8fafc 582
c9a65ca8
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583PCMDEF(s16le, "pcm signed 16 bit little endian format",
584 LE_DEF("sw"), CODEC_ID_PCM_S16LE)
5ed8fafc 585
c9a65ca8
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586PCMDEF(s16be, "pcm signed 16 bit big endian format",
587 BE_DEF("sw"), CODEC_ID_PCM_S16BE)
5ed8fafc 588
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589PCMDEF(u16le, "pcm unsigned 16 bit little endian format",
590 LE_DEF("uw"), CODEC_ID_PCM_U16LE)
5ed8fafc 591
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592PCMDEF(u16be, "pcm unsigned 16 bit big endian format",
593 BE_DEF("uw"), CODEC_ID_PCM_U16BE)
5ed8fafc 594
c9a65ca8
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595PCMDEF(s8, "pcm signed 8 bit format",
596 "sb", CODEC_ID_PCM_S8)
5ed8fafc 597
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598PCMDEF(u8, "pcm unsigned 8 bit format",
599 "ub", CODEC_ID_PCM_U8)
5ed8fafc 600
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601PCMDEF(mulaw, "pcm mu law format",
602 "ul", CODEC_ID_PCM_MULAW)
de6d9b64 603
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604PCMDEF(alaw, "pcm A law format",
605 "al", CODEC_ID_PCM_ALAW)
de6d9b64 606
5c91a675 607static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
de6d9b64
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608{
609 int packet_size, ret, width, height;
610 AVStream *st = s->streams[0];
611
612 width = st->codec.width;
613 height = st->codec.height;
614
63167088
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615 packet_size = avpicture_get_size(st->codec.pix_fmt, width, height);
616 if (packet_size < 0)
71c32f19 617 return -1;
de6d9b64
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618
619 if (av_new_packet(pkt, packet_size) < 0)
0bd586c5 620 return AVERROR_IO;
de6d9b64
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621
622 pkt->stream_index = 0;
c2c2cd2d 623#if 0
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624 /* bypass buffered I/O */
625 ret = url_read(url_fileno(&s->pb), pkt->data, pkt->size);
c2c2cd2d
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626#else
627 ret = get_buffer(&s->pb, pkt->data, pkt->size);
628#endif
de6d9b64
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629 if (ret != pkt->size) {
630 av_free_packet(pkt);
0bd586c5 631 return AVERROR_IO;
de6d9b64
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632 } else {
633 return 0;
634 }
635}
636
c9a65ca8
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637AVInputFormat rawvideo_iformat = {
638 "rawvideo",
639 "raw video format",
640 0,
641 NULL,
642 raw_read_header,
643 rawvideo_read_packet,
644 raw_read_close,
bb76a117
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645 .extensions = "yuv",
646 .value = CODEC_ID_RAWVIDEO,
c9a65ca8
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647};
648
764ef400 649#ifdef CONFIG_ENCODERS
c9a65ca8 650AVOutputFormat rawvideo_oformat = {
de6d9b64
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651 "rawvideo",
652 "raw video format",
653 NULL,
654 "yuv",
c9a65ca8 655 0,
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656 CODEC_ID_NONE,
657 CODEC_ID_RAWVIDEO,
658 raw_write_header,
659 raw_write_packet,
660 raw_write_trailer,
de6d9b64 661};
764ef400 662#endif //CONFIG_ENCODERS
c9a65ca8 663
764ef400 664#ifdef CONFIG_ENCODERS
e928649b 665static int null_write_packet(struct AVFormatContext *s, AVPacket *pkt)
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666{
667 return 0;
668}
669
670AVOutputFormat null_oformat = {
671 "null",
672 "null video format",
673 NULL,
674 NULL,
675 0,
676#ifdef WORDS_BIGENDIAN
677 CODEC_ID_PCM_S16BE,
678#else
679 CODEC_ID_PCM_S16LE,
680#endif
681 CODEC_ID_RAWVIDEO,
682 raw_write_header,
683 null_write_packet,
684 raw_write_trailer,
b1d89f82 685 .flags = AVFMT_NOFILE | AVFMT_RAWPICTURE,
87bdd3e5 686};
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687#endif //CONFIG_ENCODERS
688
689#ifndef CONFIG_ENCODERS
690#define av_register_output_format(format)
691#endif
692#ifndef CONFIG_DECODERS
693#define av_register_input_format(format)
694#endif
87bdd3e5 695
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696int raw_init(void)
697{
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698
699 av_register_input_format(&shorten_iformat);
700
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701 av_register_input_format(&ac3_iformat);
702 av_register_output_format(&ac3_oformat);
703
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704 av_register_input_format(&dts_iformat);
705
c6148de2 706 av_register_input_format(&h261_iformat);
1c3990db 707 av_register_output_format(&h261_oformat);
c6148de2 708
d07f9043 709 av_register_input_format(&h263_iformat);
c9a65ca8 710 av_register_output_format(&h263_oformat);
89b3d7c9 711
7866eeff 712 av_register_input_format(&m4v_iformat);
89b3d7c9 713 av_register_output_format(&m4v_oformat);
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714
715 av_register_input_format(&h264_iformat);
716 av_register_output_format(&h264_oformat);
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717
718 av_register_input_format(&mpegvideo_iformat);
719 av_register_output_format(&mpeg1video_oformat);
720
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721 av_register_output_format(&mpeg2video_oformat);
722
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723 av_register_input_format(&mjpeg_iformat);
724 av_register_output_format(&mjpeg_oformat);
725
726 av_register_input_format(&pcm_s16le_iformat);
727 av_register_output_format(&pcm_s16le_oformat);
728 av_register_input_format(&pcm_s16be_iformat);
729 av_register_output_format(&pcm_s16be_oformat);
730 av_register_input_format(&pcm_u16le_iformat);
731 av_register_output_format(&pcm_u16le_oformat);
732 av_register_input_format(&pcm_u16be_iformat);
733 av_register_output_format(&pcm_u16be_oformat);
734 av_register_input_format(&pcm_s8_iformat);
735 av_register_output_format(&pcm_s8_oformat);
736 av_register_input_format(&pcm_u8_iformat);
737 av_register_output_format(&pcm_u8_oformat);
738 av_register_input_format(&pcm_mulaw_iformat);
739 av_register_output_format(&pcm_mulaw_oformat);
740 av_register_input_format(&pcm_alaw_iformat);
741 av_register_output_format(&pcm_alaw_oformat);
742
743 av_register_input_format(&rawvideo_iformat);
744 av_register_output_format(&rawvideo_oformat);
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745
746 av_register_output_format(&null_oformat);
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747 return 0;
748}