support dumping the qscale stuff to the screen
[libav.git] / libavcodec / utils.c
CommitLineData
de6d9b64
FB
1/*
2 * utils for libavcodec
ff4ec49e 3 * Copyright (c) 2001 Fabrice Bellard.
de6d9b64 4 *
ff4ec49e
FB
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 *
ff4ec49e 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
ff4ec49e
FB
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
ff4ec49e
FB
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 */
de6d9b64 19#include "avcodec.h"
3123dd79 20#include "dsputil.h"
1c2a8c7f 21#include "mpegvideo.h"
de6d9b64 22
18f77016 23void *av_mallocz(unsigned int size)
3123dd79
FB
24{
25 void *ptr;
5b20b732
MN
26
27 if(size == 0) fprintf(stderr, "Warning, allocating 0 bytes\n");
28
3123dd79
FB
29 ptr = av_malloc(size);
30 if (!ptr)
31 return NULL;
32 memset(ptr, 0, size);
33 return ptr;
34}
35
855ea723
ZK
36/* allocation of static arrays - do not use for normal allocation */
37static unsigned int last_static = 0;
38static char*** array_static = NULL;
39static const unsigned int grow_static = 64; // ^2
40void *__av_mallocz_static(void** location, unsigned int size)
41{
42 int l = (last_static + grow_static) & ~(grow_static - 1);
43 void *ptr = av_mallocz(size);
44 if (!ptr)
45 return NULL;
46
47 if (location)
48 {
49 if (l > last_static)
50 array_static = realloc(array_static, l);
51 array_static[last_static++] = (char**) location;
52 *location = ptr;
53 }
54 return ptr;
55}
56/* free all static arrays and reset pointers to 0 */
57void av_free_static()
58{
59 if (array_static)
60 {
61 unsigned i;
62 for (i = 0; i < last_static; i++)
63 {
64 free(*array_static[i]);
65 *array_static[i] = NULL;
66 }
67 free(array_static);
68 array_static = 0;
69 }
70 last_static = 0;
71}
72
4d7a0a05
FB
73/* cannot call it directly because of 'void **' casting is not automatic */
74void __av_freep(void **ptr)
75{
76 av_free(*ptr);
77 *ptr = NULL;
78}
79
de6d9b64
FB
80/* encoder management */
81AVCodec *first_avcodec;
82
83void register_avcodec(AVCodec *format)
84{
85 AVCodec **p;
86 p = &first_avcodec;
87 while (*p != NULL) p = &(*p)->next;
88 *p = format;
89 format->next = NULL;
90}
91
1e491e29
MN
92void avcodec_get_chroma_sub_sample(int fmt, int *h_shift, int *v_shift){
93 switch(fmt){
94 case PIX_FMT_YUV410P:
95 *h_shift=2;
96 *v_shift=2;
97 break;
98 case PIX_FMT_YUV420P:
99 *h_shift=1;
100 *v_shift=1;
101 break;
102 case PIX_FMT_YUV411P:
103 *h_shift=2;
104 *v_shift=0;
105 break;
106 case PIX_FMT_YUV422P:
107 case PIX_FMT_YUV422:
108 *h_shift=1;
109 *v_shift=0;
110 break;
111 default: //RGB/...
112 *h_shift=0;
113 *v_shift=0;
114 break;
115 }
116}
117
118typedef struct DefaultPicOpaque{
119 int last_pic_num;
120 uint8_t *data[4];
121}DefaultPicOpaque;
122
492cd3a9 123int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29
MN
124 int i;
125 const int width = s->width;
126 const int height= s->height;
127 DefaultPicOpaque *opaque;
4e00e76b
MN
128
129 assert(pic->data[0]==NULL);
130 assert(pic->type==0 || pic->type==FF_TYPE_INTERNAL);
1e491e29
MN
131
132 if(pic->opaque){
133 opaque= (DefaultPicOpaque *)pic->opaque;
134 for(i=0; i<3; i++)
135 pic->data[i]= opaque->data[i];
136
137// printf("get_buffer %X coded_pic_num:%d last:%d\n", pic->opaque, pic->coded_picture_number, opaque->last_pic_num);
138 pic->age= pic->coded_picture_number - opaque->last_pic_num;
139 opaque->last_pic_num= pic->coded_picture_number;
140//printf("age: %d %d %d\n", pic->age, c->picture_number, pic->coded_picture_number);
141 }else{
142 int align, h_chroma_shift, v_chroma_shift;
143 int w, h, pixel_size;
144
145 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
146
147 switch(s->pix_fmt){
148 case PIX_FMT_YUV422:
149 pixel_size=2;
150 break;
151 case PIX_FMT_RGB24:
152 case PIX_FMT_BGR24:
153 pixel_size=3;
154 break;
155 case PIX_FMT_BGRA32:
156 case PIX_FMT_RGBA32:
157 pixel_size=4;
158 break;
159 default:
160 pixel_size=1;
161 }
162
163 if(s->codec_id==CODEC_ID_SVQ1) align=63;
164 else align=15;
165
166 w= (width +align)&~align;
167 h= (height+align)&~align;
168
169 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
170 w+= EDGE_WIDTH*2;
171 h+= EDGE_WIDTH*2;
172 }
173
174 opaque= av_mallocz(sizeof(DefaultPicOpaque));
175 if(opaque==NULL) return -1;
176
177 pic->opaque= opaque;
178 opaque->last_pic_num= -256*256*256*64;
179
180 for(i=0; i<3; i++){
181 int h_shift= i==0 ? 0 : h_chroma_shift;
182 int v_shift= i==0 ? 0 : v_chroma_shift;
183
184 pic->linesize[i]= pixel_size*w>>h_shift;
185
186 pic->base[i]= av_mallocz((pic->linesize[i]*h>>v_shift)+16); //FIXME 16
187 if(pic->base[i]==NULL) return -1;
188
189 memset(pic->base[i], 128, pic->linesize[i]*h>>v_shift);
190
191 if(s->flags&CODEC_FLAG_EMU_EDGE)
4e00e76b 192 pic->data[i] = pic->base[i] + 16; //FIXME 16
1e491e29 193 else
4e00e76b 194 pic->data[i] = pic->base[i] + (pic->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift) + 16; //FIXME 16
1e491e29
MN
195
196 opaque->data[i]= pic->data[i];
197 }
198 pic->age= 256*256*256*64;
4e00e76b 199 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29
MN
200 }
201
202 return 0;
203}
204
492cd3a9 205void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29
MN
206 int i;
207
4e00e76b
MN
208 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
209
1e491e29
MN
210 for(i=0; i<3; i++)
211 pic->data[i]=NULL;
212//printf("R%X\n", pic->opaque);
213}
214
a949d72e 215void avcodec_get_context_defaults(AVCodecContext *s){
e8b62df6
MN
216 s->bit_rate= 800*1000;
217 s->bit_rate_tolerance= s->bit_rate*10;
a949d72e
MN
218 s->qmin= 2;
219 s->qmax= 31;
220 s->rc_eq= "tex^qComp";
221 s->qcompress= 0.5;
e8b62df6
MN
222 s->max_qdiff= 3;
223 s->b_quant_factor=1.25;
224 s->b_quant_offset=1.25;
b3a391e8 225 s->i_quant_factor=-0.8;
e8b62df6 226 s->i_quant_offset=0.0;
4d2858de 227 s->error_concealment= 3;
8d0e42ca 228 s->error_resilience= 1;
4d2858de 229 s->workaround_bugs= FF_BUG_AUTODETECT;
8d0e42ca
MN
230 s->frame_rate = 25 * FRAME_RATE_BASE;
231 s->gop_size= 50;
232 s->me_method= ME_EPZS;
1e491e29
MN
233 s->get_buffer= avcodec_default_get_buffer;
234 s->release_buffer= avcodec_default_release_buffer;
a949d72e
MN
235}
236
237/**
238 * allocates a AVCodecContext and set it to defaults.
239 * this can be deallocated by simply calling free()
240 */
7ffbb60e 241AVCodecContext *avcodec_alloc_context(void){
a949d72e
MN
242 AVCodecContext *avctx= av_mallocz(sizeof(AVCodecContext));
243
244 if(avctx==NULL) return NULL;
245
246 avcodec_get_context_defaults(avctx);
247
248 return avctx;
249}
250
1e491e29 251/**
492cd3a9 252 * allocates a AVPFrame and set it to defaults.
1e491e29
MN
253 * this can be deallocated by simply calling free()
254 */
492cd3a9
MN
255AVFrame *avcodec_alloc_frame(void){
256 AVFrame *pic= av_mallocz(sizeof(AVFrame));
1e491e29
MN
257
258 return pic;
259}
260
de6d9b64
FB
261int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
262{
263 int ret;
264
265 avctx->codec = codec;
4cb3ca72 266 avctx->codec_id = codec->id;
de6d9b64 267 avctx->frame_number = 0;
0edf8a7a
PG
268 if (codec->priv_data_size > 0) {
269 avctx->priv_data = av_mallocz(codec->priv_data_size);
270 if (!avctx->priv_data)
271 return -ENOMEM;
272 } else {
273 avctx->priv_data = NULL;
274 }
de6d9b64
FB
275 ret = avctx->codec->init(avctx);
276 if (ret < 0) {
3123dd79 277 av_freep(&avctx->priv_data);
de6d9b64
FB
278 return ret;
279 }
280 return 0;
281}
282
283int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
284 const short *samples)
285{
286 int ret;
287
288 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
289 avctx->frame_number++;
290 return ret;
291}
292
293int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
492cd3a9 294 const AVFrame *pict)
de6d9b64
FB
295{
296 int ret;
297
298 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
6bb925f4
MN
299
300 emms_c(); //needed to avoid a emms_c() call before every return;
301
de6d9b64
FB
302 avctx->frame_number++;
303 return ret;
304}
305
306/* decode a frame. return -1 if error, otherwise return the number of
307 bytes used. If no frame could be decompressed, *got_picture_ptr is
308 zero. Otherwise, it is non zero */
492cd3a9 309int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64
FB
310 int *got_picture_ptr,
311 UINT8 *buf, int buf_size)
312{
313 int ret;
1e491e29 314
de6d9b64
FB
315 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
316 buf, buf_size);
6bb925f4
MN
317
318 emms_c(); //needed to avoid a emms_c() call before every return;
1e491e29 319
1cb0edb4
J
320 if (*got_picture_ptr)
321 avctx->frame_number++;
de6d9b64
FB
322 return ret;
323}
324
325/* decode an audio frame. return -1 if error, otherwise return the
326 *number of bytes used. If no frame could be decompressed,
327 *frame_size_ptr is zero. Otherwise, it is the decompressed frame
328 *size in BYTES. */
329int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
330 int *frame_size_ptr,
331 UINT8 *buf, int buf_size)
332{
333 int ret;
334
335 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
336 buf, buf_size);
337 avctx->frame_number++;
338 return ret;
339}
340
341int avcodec_close(AVCodecContext *avctx)
342{
343 if (avctx->codec->close)
344 avctx->codec->close(avctx);
3123dd79 345 av_freep(&avctx->priv_data);
de6d9b64
FB
346 avctx->codec = NULL;
347 return 0;
348}
349
350AVCodec *avcodec_find_encoder(enum CodecID id)
351{
352 AVCodec *p;
353 p = first_avcodec;
354 while (p) {
355 if (p->encode != NULL && p->id == id)
356 return p;
357 p = p->next;
358 }
359 return NULL;
360}
361
98f3b098
A
362AVCodec *avcodec_find_encoder_by_name(const char *name)
363{
364 AVCodec *p;
365 p = first_avcodec;
366 while (p) {
367 if (p->encode != NULL && strcmp(name,p->name) == 0)
368 return p;
369 p = p->next;
370 }
371 return NULL;
372}
373
de6d9b64
FB
374AVCodec *avcodec_find_decoder(enum CodecID id)
375{
376 AVCodec *p;
377 p = first_avcodec;
378 while (p) {
379 if (p->decode != NULL && p->id == id)
380 return p;
381 p = p->next;
382 }
383 return NULL;
384}
385
386AVCodec *avcodec_find_decoder_by_name(const char *name)
387{
388 AVCodec *p;
389 p = first_avcodec;
390 while (p) {
391 if (p->decode != NULL && strcmp(name,p->name) == 0)
392 return p;
393 p = p->next;
394 }
395 return NULL;
396}
397
398AVCodec *avcodec_find(enum CodecID id)
399{
400 AVCodec *p;
401 p = first_avcodec;
402 while (p) {
403 if (p->id == id)
404 return p;
405 p = p->next;
406 }
407 return NULL;
408}
409
cf087595
FB
410const char *pix_fmt_str[] = {
411 "yuv420p",
412 "yuv422",
413 "rgb24",
414 "bgr24",
415 "yuv422p",
416 "yuv444p",
b71472eb
PG
417 "rgba32",
418 "bgra32",
a5e88058
FB
419 "yuv410p",
420 "yuv411p",
cf087595 421};
a5e88058 422
de6d9b64
FB
423void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
424{
425 const char *codec_name;
426 AVCodec *p;
427 char buf1[32];
623563c0 428 char channels_str[100];
a96b68b7 429 int bitrate;
de6d9b64
FB
430
431 if (encode)
432 p = avcodec_find_encoder(enc->codec_id);
433 else
434 p = avcodec_find_decoder(enc->codec_id);
435
436 if (p) {
437 codec_name = p->name;
438 } else if (enc->codec_name[0] != '\0') {
439 codec_name = enc->codec_name;
440 } else {
441 /* output avi tags */
442 if (enc->codec_type == CODEC_TYPE_VIDEO) {
443 snprintf(buf1, sizeof(buf1), "%c%c%c%c",
444 enc->codec_tag & 0xff,
445 (enc->codec_tag >> 8) & 0xff,
446 (enc->codec_tag >> 16) & 0xff,
447 (enc->codec_tag >> 24) & 0xff);
448 } else {
449 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
450 }
451 codec_name = buf1;
452 }
453
454 switch(enc->codec_type) {
455 case CODEC_TYPE_VIDEO:
456 snprintf(buf, buf_size,
457 "Video: %s%s",
458 codec_name, enc->flags & CODEC_FLAG_HQ ? " (hq)" : "");
cf087595
FB
459 if (enc->codec_id == CODEC_ID_RAWVIDEO) {
460 snprintf(buf + strlen(buf), buf_size - strlen(buf),
461 ", %s",
462 pix_fmt_str[enc->pix_fmt]);
463 }
de6d9b64
FB
464 if (enc->width) {
465 snprintf(buf + strlen(buf), buf_size - strlen(buf),
466 ", %dx%d, %0.2f fps",
467 enc->width, enc->height,
468 (float)enc->frame_rate / FRAME_RATE_BASE);
469 }
4bfad535
FB
470 if (encode) {
471 snprintf(buf + strlen(buf), buf_size - strlen(buf),
472 ", q=%d-%d", enc->qmin, enc->qmax);
473 }
a96b68b7 474 bitrate = enc->bit_rate;
de6d9b64
FB
475 break;
476 case CODEC_TYPE_AUDIO:
477 snprintf(buf, buf_size,
478 "Audio: %s",
479 codec_name);
e0d2714a
J
480 switch (enc->channels) {
481 case 1:
623563c0 482 strcpy(channels_str, "mono");
e0d2714a
J
483 break;
484 case 2:
623563c0 485 strcpy(channels_str, "stereo");
e0d2714a
J
486 break;
487 case 6:
623563c0 488 strcpy(channels_str, "5:1");
e0d2714a
J
489 break;
490 default:
491 sprintf(channels_str, "%d channels", enc->channels);
492 break;
493 }
de6d9b64
FB
494 if (enc->sample_rate) {
495 snprintf(buf + strlen(buf), buf_size - strlen(buf),
496 ", %d Hz, %s",
497 enc->sample_rate,
e0d2714a 498 channels_str);
de6d9b64 499 }
e0d2714a 500
a96b68b7
FB
501 /* for PCM codecs, compute bitrate directly */
502 switch(enc->codec_id) {
503 case CODEC_ID_PCM_S16LE:
504 case CODEC_ID_PCM_S16BE:
505 case CODEC_ID_PCM_U16LE:
506 case CODEC_ID_PCM_U16BE:
a190b7e9 507 bitrate = enc->sample_rate * enc->channels * 16;
a96b68b7
FB
508 break;
509 case CODEC_ID_PCM_S8:
510 case CODEC_ID_PCM_U8:
511 case CODEC_ID_PCM_ALAW:
512 case CODEC_ID_PCM_MULAW:
a190b7e9 513 bitrate = enc->sample_rate * enc->channels * 8;
a96b68b7
FB
514 break;
515 default:
516 bitrate = enc->bit_rate;
517 break;
518 }
de6d9b64
FB
519 break;
520 default:
b71472eb 521 av_abort();
de6d9b64 522 }
4bfad535
FB
523 if (encode) {
524 if (enc->flags & CODEC_FLAG_PASS1)
525 snprintf(buf + strlen(buf), buf_size - strlen(buf),
526 ", pass 1");
527 if (enc->flags & CODEC_FLAG_PASS2)
528 snprintf(buf + strlen(buf), buf_size - strlen(buf),
529 ", pass 2");
530 }
a96b68b7 531 if (bitrate != 0) {
de6d9b64 532 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 533 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
534 }
535}
536
cf087595
FB
537/* Picture field are filled with 'ptr' addresses */
538void avpicture_fill(AVPicture *picture, UINT8 *ptr,
539 int pix_fmt, int width, int height)
540{
541 int size;
542
543 size = width * height;
544 switch(pix_fmt) {
545 case PIX_FMT_YUV420P:
546 picture->data[0] = ptr;
547 picture->data[1] = picture->data[0] + size;
548 picture->data[2] = picture->data[1] + size / 4;
549 picture->linesize[0] = width;
550 picture->linesize[1] = width / 2;
551 picture->linesize[2] = width / 2;
552 break;
553 case PIX_FMT_YUV422P:
554 picture->data[0] = ptr;
555 picture->data[1] = picture->data[0] + size;
556 picture->data[2] = picture->data[1] + size / 2;
557 picture->linesize[0] = width;
558 picture->linesize[1] = width / 2;
559 picture->linesize[2] = width / 2;
560 break;
561 case PIX_FMT_YUV444P:
562 picture->data[0] = ptr;
563 picture->data[1] = picture->data[0] + size;
564 picture->data[2] = picture->data[1] + size;
565 picture->linesize[0] = width;
566 picture->linesize[1] = width;
567 picture->linesize[2] = width;
568 break;
569 case PIX_FMT_RGB24:
570 case PIX_FMT_BGR24:
571 picture->data[0] = ptr;
572 picture->data[1] = NULL;
573 picture->data[2] = NULL;
574 picture->linesize[0] = width * 3;
575 break;
b71472eb
PG
576 case PIX_FMT_RGBA32:
577 case PIX_FMT_BGRA32:
578 picture->data[0] = ptr;
579 picture->data[1] = NULL;
580 picture->data[2] = NULL;
581 picture->linesize[0] = width * 4;
582 break;
cf087595
FB
583 case PIX_FMT_YUV422:
584 picture->data[0] = ptr;
585 picture->data[1] = NULL;
586 picture->data[2] = NULL;
587 picture->linesize[0] = width * 2;
588 break;
589 default:
590 picture->data[0] = NULL;
591 picture->data[1] = NULL;
592 picture->data[2] = NULL;
593 break;
594 }
595}
596
597int avpicture_get_size(int pix_fmt, int width, int height)
598{
599 int size;
600
601 size = width * height;
602 switch(pix_fmt) {
603 case PIX_FMT_YUV420P:
604 size = (size * 3) / 2;
605 break;
606 case PIX_FMT_YUV422P:
607 size = (size * 2);
608 break;
609 case PIX_FMT_YUV444P:
610 size = (size * 3);
611 break;
612 case PIX_FMT_RGB24:
613 case PIX_FMT_BGR24:
614 size = (size * 3);
615 break;
b71472eb
PG
616 case PIX_FMT_RGBA32:
617 case PIX_FMT_BGRA32:
618 size = (size * 4);
619 break;
cf087595
FB
620 case PIX_FMT_YUV422:
621 size = (size * 2);
622 break;
623 default:
624 size = -1;
625 break;
626 }
627 return size;
628}
629
156e5023
NK
630unsigned avcodec_version( void )
631{
632 return LIBAVCODEC_VERSION_INT;
633}
cf087595 634
8bceb6af
NK
635unsigned avcodec_build( void )
636{
637 return LIBAVCODEC_BUILD;
638}
639
de6d9b64
FB
640/* must be called before any other functions */
641void avcodec_init(void)
642{
0344cd0a
AB
643 static int inited = 0;
644
645 if (inited != 0)
646 return;
647 inited = 1;
648
c6af86c2 649 //dsputil_init();
de6d9b64
FB
650}
651
4e00e76b 652/* this can be called after seeking and before trying to decode the next keyframe */
1c2a8c7f
MN
653void avcodec_flush_buffers(AVCodecContext *avctx)
654{
4e00e76b 655 int i;
1c2a8c7f 656 MpegEncContext *s = avctx->priv_data;
4e00e76b
MN
657
658 switch(avctx->codec_id){
659 case CODEC_ID_MPEG1VIDEO:
660 case CODEC_ID_H263:
661 case CODEC_ID_RV10:
662 case CODEC_ID_MJPEG:
663 case CODEC_ID_MJPEGB:
664 case CODEC_ID_MPEG4:
665 case CODEC_ID_MSMPEG4V1:
666 case CODEC_ID_MSMPEG4V2:
667 case CODEC_ID_MSMPEG4V3:
668 case CODEC_ID_WMV1:
669 case CODEC_ID_WMV2:
670 case CODEC_ID_H263P:
671 case CODEC_ID_H263I:
672 case CODEC_ID_SVQ1:
673 for(i=0; i<MAX_PICTURE_COUNT; i++){
674 if(s->picture[i].data[0] && ( s->picture[i].type == FF_BUFFER_TYPE_INTERNAL
675 || s->picture[i].type == FF_BUFFER_TYPE_USER))
492cd3a9 676 avctx->release_buffer(avctx, (AVFrame*)&s->picture[i]);
4e00e76b
MN
677 }
678 break;
679 default:
680 //FIXME
681 break;
682 }
1c2a8c7f
MN
683}
684
cd4af68a 685static int raw_encode_init(AVCodecContext *s)
de6d9b64
FB
686{
687 return 0;
688}
689
cd4af68a
ZK
690static int raw_decode_frame(AVCodecContext *avctx,
691 void *data, int *data_size,
692 UINT8 *buf, int buf_size)
de6d9b64
FB
693{
694 return -1;
695}
696
cd4af68a
ZK
697static int raw_encode_frame(AVCodecContext *avctx,
698 unsigned char *frame, int buf_size, void *data)
de6d9b64
FB
699{
700 return -1;
701}
702
de6d9b64
FB
703AVCodec rawvideo_codec = {
704 "rawvideo",
705 CODEC_TYPE_VIDEO,
706 CODEC_ID_RAWVIDEO,
707 0,
cd4af68a
ZK
708 raw_encode_init,
709 raw_encode_frame,
de6d9b64 710 NULL,
cd4af68a 711 raw_decode_frame,
de6d9b64 712};