Return AVERROR(ENOMEM) instead of -1 when malloc fails in url_open_dyn_buf_internal
[libav.git] / libavcodec / utils.c
CommitLineData
de6d9b64
FB
1/*
2 * utils for libavcodec
ff4ec49e 3 * Copyright (c) 2001 Fabrice Bellard.
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
de6d9b64 5 *
b78e7197
DB
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
ff4ec49e
FB
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
b78e7197 11 * version 2.1 of the License, or (at your option) any later version.
de6d9b64 12 *
b78e7197 13 * FFmpeg is distributed in the hope that it will be useful,
de6d9b64 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ff4ec49e
FB
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
de6d9b64 17 *
ff4ec49e 18 * You should have received a copy of the GNU Lesser General Public
b78e7197 19 * License along with FFmpeg; if not, write to the Free Software
5509bffa 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
de6d9b64 21 */
115329f1 22
983e3246
MN
23/**
24 * @file utils.c
25 * utils.
26 */
115329f1 27
7246177d 28/* needed for mkstemp() */
d0feff2a 29#define _XOPEN_SOURCE 600
7246177d 30
7fb94406 31#include "libavutil/avstring.h"
245976da
DB
32#include "libavutil/integer.h"
33#include "libavutil/crc.h"
de6d9b64 34#include "avcodec.h"
3123dd79 35#include "dsputil.h"
6fd46414 36#include "opt.h"
db7ae7d1 37#include "imgconvert.h"
9e82a113 38#include "audioconvert.h"
7246177d 39#include <stdlib.h>
9b879566 40#include <stdarg.h>
4c263142 41#include <limits.h>
860a40c8 42#include <float.h>
b250f9c6 43#if !HAVE_MKSTEMP
1005f542
CH
44#include <fcntl.h>
45#endif
de6d9b64 46
44608ac7
RG
47const uint8_t ff_reverse[256]={
480x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
490x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
500x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
510x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
520x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
530x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
540x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
550x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
560x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
570x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
580x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
590x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
600x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
610x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
620x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
630x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
64};
65
ddebfb15
MN
66static int volatile entangled_thread_counter=0;
67
5c91a675 68void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
8e1e6f31 69{
115329f1 70 if(min_size < *size)
8e1e6f31 71 return ptr;
115329f1 72
0ecca7a4 73 *size= FFMAX(17*min_size/16 + 32, min_size);
8e1e6f31 74
978805b2
MN
75 ptr= av_realloc(ptr, *size);
76 if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
77 *size= 0;
78
79 return ptr;
8e1e6f31
FB
80}
81
de6d9b64 82/* encoder management */
e6df765e 83static AVCodec *first_avcodec = NULL;
de6d9b64 84
55b9e69a
MN
85AVCodec *av_codec_next(AVCodec *c){
86 if(c) return c->next;
87 else return first_avcodec;
88}
89
335a761a 90void register_avcodec(AVCodec *codec)
de6d9b64
FB
91{
92 AVCodec **p;
7a961a46 93 avcodec_init();
de6d9b64
FB
94 p = &first_avcodec;
95 while (*p != NULL) p = &(*p)->next;
335a761a
SS
96 *p = codec;
97 codec->next = NULL;
de6d9b64
FB
98}
99
21adafec
MN
100void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
101 s->coded_width = width;
102 s->coded_height= height;
103 s->width = -((-width )>>s->lowres);
104 s->height= -((-height)>>s->lowres);
105}
106
d90cf87b 107typedef struct InternalBuffer{
1e491e29 108 int last_pic_num;
d90cf87b 109 uint8_t *base[4];
1e491e29 110 uint8_t *data[4];
237e4938 111 int linesize[4];
0701006e
MN
112 int width, height;
113 enum PixelFormat pix_fmt;
d90cf87b
MN
114}InternalBuffer;
115
116#define INTERNAL_BUFFER_SIZE 32
1e491e29 117
f0bbfc4a
MN
118#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
119
120void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
115329f1
DB
121 int w_align= 1;
122 int h_align= 1;
123
f0bbfc4a
MN
124 switch(s->pix_fmt){
125 case PIX_FMT_YUV420P:
71e445fc 126 case PIX_FMT_YUYV422:
ebb177dd 127 case PIX_FMT_UYVY422:
f0bbfc4a
MN
128 case PIX_FMT_YUV422P:
129 case PIX_FMT_YUV444P:
130 case PIX_FMT_GRAY8:
34380af0
KS
131 case PIX_FMT_GRAY16BE:
132 case PIX_FMT_GRAY16LE:
f0bbfc4a
MN
133 case PIX_FMT_YUVJ420P:
134 case PIX_FMT_YUVJ422P:
135 case PIX_FMT_YUVJ444P:
b70335a2 136 case PIX_FMT_YUVA420P:
f0bbfc4a
MN
137 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
138 h_align= 16;
139 break;
140 case PIX_FMT_YUV411P:
71e445fc 141 case PIX_FMT_UYYVYY411:
f0bbfc4a
MN
142 w_align=32;
143 h_align=8;
144 break;
145 case PIX_FMT_YUV410P:
146 if(s->codec_id == CODEC_ID_SVQ1){
147 w_align=64;
148 h_align=64;
149 }
d99fbbf4
RT
150 case PIX_FMT_RGB555:
151 if(s->codec_id == CODEC_ID_RPZA){
152 w_align=4;
153 h_align=4;
154 }
155 case PIX_FMT_PAL8:
156 if(s->codec_id == CODEC_ID_SMC){
157 w_align=4;
158 h_align=4;
159 }
f0bbfc4a 160 break;
c31b8121
RT
161 case PIX_FMT_BGR24:
162 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
163 w_align=4;
164 h_align=4;
165 }
166 break;
f0bbfc4a
MN
167 default:
168 w_align= 1;
169 h_align= 1;
170 break;
171 }
172
173 *width = ALIGN(*width , w_align);
174 *height= ALIGN(*height, h_align);
ae4ffe9f
MN
175 if(s->codec_id == CODEC_ID_H264)
176 *height+=2; // some of the optimized chroma MC reads one line too much
f0bbfc4a
MN
177}
178
0ecca7a4
MN
179int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
180 if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
181 return 0;
115329f1 182
0ecca7a4
MN
183 av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
184 return -1;
185}
186
492cd3a9 187int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 188 int i;
f0bbfc4a
MN
189 int w= s->width;
190 int h= s->height;
d90cf87b 191 InternalBuffer *buf;
237e4938 192 int *picture_number;
0ecca7a4 193
65d999d6
MB
194 if(pic->data[0]!=NULL) {
195 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
196 return -1;
197 }
198 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
199 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
200 return -1;
201 }
1e491e29 202
0ecca7a4
MN
203 if(avcodec_check_dimensions(s,w,h))
204 return -1;
205
d90cf87b 206 if(s->internal_buffer==NULL){
6ebc89ac 207 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
d90cf87b
MN
208 }
209#if 0
210 s->internal_buffer= av_fast_realloc(
115329f1
DB
211 s->internal_buffer,
212 &s->internal_buffer_size,
d90cf87b
MN
213 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
214 );
215#endif
115329f1 216
d90cf87b 217 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
6ebc89ac 218 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
237e4938 219 (*picture_number)++;
115329f1 220
0701006e
MN
221 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
222 for(i=0; i<4; i++){
223 av_freep(&buf->base[i]);
224 buf->data[i]= NULL;
225 }
226 }
227
d90cf87b 228 if(buf->base[0]){
237e4938
MN
229 pic->age= *picture_number - buf->last_pic_num;
230 buf->last_pic_num= *picture_number;
1e491e29 231 }else{
f0bbfc4a 232 int h_chroma_shift, v_chroma_shift;
db7ae7d1
VS
233 int size[4] = {0};
234 int tmpsize;
c7622f9a 235 AVPicture picture;
503bc402 236 int stride_align[4];
c7622f9a 237
1e491e29 238 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
f0bbfc4a
MN
239
240 avcodec_align_dimensions(s, &w, &h);
115329f1 241
1e491e29
MN
242 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
243 w+= EDGE_WIDTH*2;
244 h+= EDGE_WIDTH*2;
245 }
5b67307a 246
db7ae7d1
VS
247 ff_fill_linesize(&picture, s->pix_fmt, w);
248
503bc402
MN
249 for (i=0; i<4; i++){
250//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
251//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
252//picture size unneccessarily in some cases. The solution here is not
253//pretty and better ideas are welcome!
b250f9c6 254#if HAVE_MMX
503bc402
MN
255 if(s->codec_id == CODEC_ID_SVQ1)
256 stride_align[i]= 16;
257 else
258#endif
259 stride_align[i] = STRIDE_ALIGN;
260 picture.linesize[i] = ALIGN(picture.linesize[i], stride_align[i]);
261 }
db7ae7d1 262
db7ae7d1
VS
263 tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
264
265 for (i=0; i<3 && picture.data[i+1]; i++)
266 size[i] = picture.data[i+1] - picture.data[i];
cf73e32a 267 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
c7622f9a 268
d90cf87b 269 buf->last_pic_num= -256*256*256*64;
c7622f9a
MN
270 memset(buf->base, 0, sizeof(buf->base));
271 memset(buf->data, 0, sizeof(buf->data));
1e491e29 272
b70335a2 273 for(i=0; i<4 && size[i]; i++){
2c19981a
MN
274 const int h_shift= i==0 ? 0 : h_chroma_shift;
275 const int v_shift= i==0 ? 0 : v_chroma_shift;
1e491e29 276
c7622f9a 277 buf->linesize[i]= picture.linesize[i];
1e491e29 278
c7622f9a 279 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
d90cf87b 280 if(buf->base[i]==NULL) return -1;
c7622f9a
MN
281 memset(buf->base[i], 128, size[i]);
282
283 // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
115329f1 284 if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
d90cf87b 285 buf->data[i] = buf->base[i];
1e491e29 286 else
503bc402 287 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
1e491e29 288 }
0701006e
MN
289 buf->width = s->width;
290 buf->height = s->height;
291 buf->pix_fmt= s->pix_fmt;
1e491e29
MN
292 pic->age= 256*256*256*64;
293 }
237e4938 294 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29 295
d90cf87b
MN
296 for(i=0; i<4; i++){
297 pic->base[i]= buf->base[i];
298 pic->data[i]= buf->data[i];
237e4938 299 pic->linesize[i]= buf->linesize[i];
d90cf87b
MN
300 }
301 s->internal_buffer_count++;
302
79de84f2
MN
303 pic->reordered_opaque= s->reordered_opaque;
304
385c820b
AS
305 if(s->debug&FF_DEBUG_BUFFERS)
306 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
307
1e491e29
MN
308 return 0;
309}
310
492cd3a9 311void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 312 int i;
6829ac8d 313 InternalBuffer *buf, *last;
d90cf87b 314
4e00e76b 315 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
59c673d5 316 assert(s->internal_buffer_count);
d90cf87b 317
b1609412 318 buf = NULL; /* avoids warning */
d90cf87b
MN
319 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
320 buf= &((InternalBuffer*)s->internal_buffer)[i];
321 if(buf->data[0] == pic->data[0])
322 break;
323 }
324 assert(i < s->internal_buffer_count);
325 s->internal_buffer_count--;
326 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
327
6829ac8d 328 FFSWAP(InternalBuffer, *buf, *last);
d90cf87b 329
b70335a2 330 for(i=0; i<4; i++){
1e491e29 331 pic->data[i]=NULL;
d90cf87b
MN
332// pic->base[i]=NULL;
333 }
1e491e29 334//printf("R%X\n", pic->opaque);
385c820b
AS
335
336 if(s->debug&FF_DEBUG_BUFFERS)
337 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
1e491e29
MN
338}
339
e1c2a5a0
RT
340int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
341 AVFrame temp_pic;
342 int i;
343
344 /* If no picture return a new buffer */
345 if(pic->data[0] == NULL) {
346 /* We will copy from buffer, so must be readable */
347 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
348 return s->get_buffer(s, pic);
349 }
350
351 /* If internal buffer type return the same buffer */
352 if(pic->type == FF_BUFFER_TYPE_INTERNAL)
353 return 0;
354
355 /*
356 * Not internal type and reget_buffer not overridden, emulate cr buffer
357 */
358 temp_pic = *pic;
359 for(i = 0; i < 4; i++)
360 pic->data[i] = pic->base[i] = NULL;
361 pic->opaque = NULL;
362 /* Allocate new frame */
363 if (s->get_buffer(s, pic))
364 return -1;
365 /* Copy image data from old buffer to new buffer */
636d6a4a 366 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
e1c2a5a0
RT
367 s->height);
368 s->release_buffer(s, &temp_pic); // Release old frame
369 return 0;
370}
371
3a84713a 372int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
9c3d33d6
MN
373 int i;
374
375 for(i=0; i<count; i++){
3a84713a 376 int r= func(c, (char*)arg + i*size);
9c3d33d6
MN
377 if(ret) ret[i]= r;
378 }
379 return 0;
380}
381
494c56d3 382enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
a33c7159
MN
383 return fmt[0];
384}
385
9740beff
MN
386void avcodec_get_frame_defaults(AVFrame *pic){
387 memset(pic, 0, sizeof(AVFrame));
388
389 pic->pts= AV_NOPTS_VALUE;
c342499d 390 pic->key_frame= 1;
9740beff
MN
391}
392
492cd3a9 393AVFrame *avcodec_alloc_frame(void){
9740beff 394 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 395
9740beff 396 if(pic==NULL) return NULL;
115329f1 397
9740beff 398 avcodec_get_frame_defaults(pic);
115329f1 399
1e491e29
MN
400 return pic;
401}
402
5e4c7ca2 403int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
de6d9b64 404{
ddebfb15 405 int ret= -1;
115329f1 406
ddebfb15
MN
407 entangled_thread_counter++;
408 if(entangled_thread_counter != 1){
409 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
410 goto end;
411 }
de6d9b64 412
9c87b8f7 413 if(avctx->codec || !codec)
ddebfb15 414 goto end;
09770af8 415
0edf8a7a
PG
416 if (codec->priv_data_size > 0) {
417 avctx->priv_data = av_mallocz(codec->priv_data_size);
90f06cea
PI
418 if (!avctx->priv_data) {
419 ret = AVERROR(ENOMEM);
ddebfb15 420 goto end;
90f06cea 421 }
0edf8a7a
PG
422 } else {
423 avctx->priv_data = NULL;
424 }
21adafec
MN
425
426 if(avctx->coded_width && avctx->coded_height)
427 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
428 else if(avctx->width && avctx->height)
429 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
430
0ecca7a4
MN
431 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
432 av_freep(&avctx->priv_data);
7868349a 433 ret = AVERROR(EINVAL);
ddebfb15 434 goto end;
0ecca7a4
MN
435 }
436
b5c85991
MN
437 avctx->codec = codec;
438 avctx->codec_id = codec->id;
439 avctx->frame_number = 0;
6e546aaa 440 if(avctx->codec->init){
2de4f9eb
MN
441 ret = avctx->codec->init(avctx);
442 if (ret < 0) {
443 av_freep(&avctx->priv_data);
444 avctx->codec= NULL;
445 goto end;
446 }
6e546aaa 447 }
ddebfb15
MN
448 ret=0;
449end:
450 entangled_thread_counter--;
451 return ret;
de6d9b64
FB
452}
453
5e4c7ca2 454int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64
FB
455 const short *samples)
456{
0ecca7a4 457 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
5286d11f 458 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
459 return -1;
460 }
6f824977
MN
461 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
462 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
463 avctx->frame_number++;
464 return ret;
465 }else
466 return 0;
de6d9b64
FB
467}
468
5e4c7ca2 469int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 470 const AVFrame *pict)
de6d9b64 471{
0ecca7a4 472 if(buf_size < FF_MIN_BUFFER_SIZE){
5286d11f 473 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
474 return -1;
475 }
476 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
477 return -1;
6f824977
MN
478 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
479 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
480 avctx->frame_number++;
bb628dae 481 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 482
6f824977
MN
483 return ret;
484 }else
485 return 0;
de6d9b64
FB
486}
487
115329f1 488int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
489 const AVSubtitle *sub)
490{
491 int ret;
492 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
493 avctx->frame_number++;
494 return ret;
495}
496
5e4c7ca2 497int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 498 int *got_picture_ptr,
2efa7fd1 499 const uint8_t *buf, int buf_size)
de6d9b64
FB
500{
501 int ret;
115329f1 502
53db1cae 503 *got_picture_ptr= 0;
0ecca7a4
MN
504 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
505 return -1;
934982c4 506 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 507 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
934982c4 508 buf, buf_size);
6bb925f4 509
bb628dae 510 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1
DB
511
512 if (*got_picture_ptr)
934982c4
MN
513 avctx->frame_number++;
514 }else
515 ret= 0;
516
de6d9b64
FB
517 return ret;
518}
519
5e4c7ca2 520int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
de6d9b64 521 int *frame_size_ptr,
2efa7fd1 522 const uint8_t *buf, int buf_size)
de6d9b64
FB
523{
524 int ret;
525
fec9ccb7 526 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
9c856d62
MN
527 //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
528 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
529 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
530 return -1;
531 }
532 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
81fc2f37 533 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
9c856d62
MN
534 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
535 return -1;
536 }
537
115329f1 538 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
fec9ccb7
MN
539 buf, buf_size);
540 avctx->frame_number++;
ac66834c 541 }else{
fec9ccb7 542 ret= 0;
ac66834c
MN
543 *frame_size_ptr=0;
544 }
de6d9b64
FB
545 return ret;
546}
547
240c1657
FB
548int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
549 int *got_sub_ptr,
550 const uint8_t *buf, int buf_size)
551{
552 int ret;
553
554 *got_sub_ptr = 0;
115329f1 555 ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
0431d3b1 556 buf, buf_size);
240c1657
FB
557 if (*got_sub_ptr)
558 avctx->frame_number++;
559 return ret;
560}
561
de6d9b64
FB
562int avcodec_close(AVCodecContext *avctx)
563{
ddebfb15
MN
564 entangled_thread_counter++;
565 if(entangled_thread_counter != 1){
566 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
567 entangled_thread_counter--;
568 return -1;
569 }
570
49fb20cb 571 if (HAVE_THREADS && avctx->thread_opaque)
ab2cfc59 572 avcodec_thread_free(avctx);
de6d9b64
FB
573 if (avctx->codec->close)
574 avctx->codec->close(avctx);
eea8c08f 575 avcodec_default_free_buffers(avctx);
3123dd79 576 av_freep(&avctx->priv_data);
de6d9b64 577 avctx->codec = NULL;
ddebfb15 578 entangled_thread_counter--;
de6d9b64
FB
579 return 0;
580}
581
582AVCodec *avcodec_find_encoder(enum CodecID id)
583{
584 AVCodec *p;
585 p = first_avcodec;
586 while (p) {
587 if (p->encode != NULL && p->id == id)
588 return p;
589 p = p->next;
590 }
591 return NULL;
592}
593
98f3b098
A
594AVCodec *avcodec_find_encoder_by_name(const char *name)
595{
596 AVCodec *p;
fc228c90
AJ
597 if (!name)
598 return NULL;
98f3b098
A
599 p = first_avcodec;
600 while (p) {
601 if (p->encode != NULL && strcmp(name,p->name) == 0)
602 return p;
603 p = p->next;
604 }
605 return NULL;
606}
607
de6d9b64
FB
608AVCodec *avcodec_find_decoder(enum CodecID id)
609{
610 AVCodec *p;
611 p = first_avcodec;
612 while (p) {
613 if (p->decode != NULL && p->id == id)
614 return p;
615 p = p->next;
616 }
617 return NULL;
618}
619
620AVCodec *avcodec_find_decoder_by_name(const char *name)
621{
622 AVCodec *p;
fc228c90
AJ
623 if (!name)
624 return NULL;
de6d9b64
FB
625 p = first_avcodec;
626 while (p) {
627 if (p->decode != NULL && strcmp(name,p->name) == 0)
628 return p;
629 p = p->next;
630 }
631 return NULL;
632}
633
de6d9b64
FB
634void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
635{
636 const char *codec_name;
637 AVCodec *p;
638 char buf1[32];
a96b68b7 639 int bitrate;
59771f71 640 AVRational display_aspect_ratio;
de6d9b64
FB
641
642 if (encode)
643 p = avcodec_find_encoder(enc->codec_id);
644 else
645 p = avcodec_find_decoder(enc->codec_id);
646
647 if (p) {
648 codec_name = p->name;
985180a1
FB
649 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
650 /* fake mpeg2 transport stream codec (currently not
651 registered) */
652 codec_name = "mpeg2ts";
de6d9b64
FB
653 } else if (enc->codec_name[0] != '\0') {
654 codec_name = enc->codec_name;
655 } else {
656 /* output avi tags */
115329f1 657 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
b983a5c6 658 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
115329f1 659 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
de6d9b64
FB
660 enc->codec_tag & 0xff,
661 (enc->codec_tag >> 8) & 0xff,
662 (enc->codec_tag >> 16) & 0xff,
b983a5c6
MN
663 (enc->codec_tag >> 24) & 0xff,
664 enc->codec_tag);
de6d9b64
FB
665 } else {
666 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
667 }
668 codec_name = buf1;
669 }
670
671 switch(enc->codec_type) {
672 case CODEC_TYPE_VIDEO:
673 snprintf(buf, buf_size,
674 "Video: %s%s",
7d1c3fc1 675 codec_name, enc->mb_decision ? " (hq)" : "");
82c0c4ba 676 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
677 snprintf(buf + strlen(buf), buf_size - strlen(buf),
678 ", %s",
9bbffbb1 679 avcodec_get_pix_fmt_name(enc->pix_fmt));
cf087595 680 }
de6d9b64
FB
681 if (enc->width) {
682 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
683 ", %dx%d",
684 enc->width, enc->height);
7ee4dd02 685 if (enc->sample_aspect_ratio.num) {
cbaf50f8
BC
686 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
687 enc->width*enc->sample_aspect_ratio.num,
688 enc->height*enc->sample_aspect_ratio.den,
689 1024*1024);
690 snprintf(buf + strlen(buf), buf_size - strlen(buf),
691 " [PAR %d:%d DAR %d:%d]",
692 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
693 display_aspect_ratio.num, display_aspect_ratio.den);
7ee4dd02 694 }
a309073b 695 if(av_log_get_level() >= AV_LOG_DEBUG){
21189011
MN
696 int g= ff_gcd(enc->time_base.num, enc->time_base.den);
697 snprintf(buf + strlen(buf), buf_size - strlen(buf),
698 ", %d/%d",
699 enc->time_base.num/g, enc->time_base.den/g);
700 }
de6d9b64 701 }
4bfad535
FB
702 if (encode) {
703 snprintf(buf + strlen(buf), buf_size - strlen(buf),
704 ", q=%d-%d", enc->qmin, enc->qmax);
705 }
a96b68b7 706 bitrate = enc->bit_rate;
de6d9b64
FB
707 break;
708 case CODEC_TYPE_AUDIO:
709 snprintf(buf, buf_size,
710 "Audio: %s",
711 codec_name);
712 if (enc->sample_rate) {
713 snprintf(buf + strlen(buf), buf_size - strlen(buf),
0d72e7d0 714 ", %d Hz", enc->sample_rate);
de6d9b64 715 }
0d72e7d0
PR
716 av_strlcat(buf, ", ", buf_size);
717 avcodec_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
9e82a113
PR
718 if (enc->sample_fmt != SAMPLE_FMT_NONE) {
719 snprintf(buf + strlen(buf), buf_size - strlen(buf),
720 ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
721 }
115329f1 722
a96b68b7
FB
723 /* for PCM codecs, compute bitrate directly */
724 switch(enc->codec_id) {
143a5d6f
PR
725 case CODEC_ID_PCM_F64BE:
726 case CODEC_ID_PCM_F64LE:
727 bitrate = enc->sample_rate * enc->channels * 64;
728 break;
b461b3bc
RD
729 case CODEC_ID_PCM_S32LE:
730 case CODEC_ID_PCM_S32BE:
731 case CODEC_ID_PCM_U32LE:
732 case CODEC_ID_PCM_U32BE:
aa29709e 733 case CODEC_ID_PCM_F32BE:
143a5d6f 734 case CODEC_ID_PCM_F32LE:
b461b3bc
RD
735 bitrate = enc->sample_rate * enc->channels * 32;
736 break;
737 case CODEC_ID_PCM_S24LE:
738 case CODEC_ID_PCM_S24BE:
739 case CODEC_ID_PCM_U24LE:
740 case CODEC_ID_PCM_U24BE:
741 case CODEC_ID_PCM_S24DAUD:
742 bitrate = enc->sample_rate * enc->channels * 24;
743 break;
a96b68b7
FB
744 case CODEC_ID_PCM_S16LE:
745 case CODEC_ID_PCM_S16BE:
725d86bf 746 case CODEC_ID_PCM_S16LE_PLANAR:
a96b68b7
FB
747 case CODEC_ID_PCM_U16LE:
748 case CODEC_ID_PCM_U16BE:
a190b7e9 749 bitrate = enc->sample_rate * enc->channels * 16;
a96b68b7
FB
750 break;
751 case CODEC_ID_PCM_S8:
752 case CODEC_ID_PCM_U8:
753 case CODEC_ID_PCM_ALAW:
754 case CODEC_ID_PCM_MULAW:
9d49b8ff 755 case CODEC_ID_PCM_ZORK:
a190b7e9 756 bitrate = enc->sample_rate * enc->channels * 8;
a96b68b7
FB
757 break;
758 default:
759 bitrate = enc->bit_rate;
760 break;
761 }
de6d9b64 762 break;
985180a1
FB
763 case CODEC_TYPE_DATA:
764 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657
FB
765 bitrate = enc->bit_rate;
766 break;
767 case CODEC_TYPE_SUBTITLE:
768 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1
FB
769 bitrate = enc->bit_rate;
770 break;
f8d7c9d3
ES
771 case CODEC_TYPE_ATTACHMENT:
772 snprintf(buf, buf_size, "Attachment: %s", codec_name);
773 bitrate = enc->bit_rate;
774 break;
de6d9b64 775 default:
9fe5a7b8
MN
776 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
777 return;
de6d9b64 778 }
4bfad535
FB
779 if (encode) {
780 if (enc->flags & CODEC_FLAG_PASS1)
781 snprintf(buf + strlen(buf), buf_size - strlen(buf),
782 ", pass 1");
783 if (enc->flags & CODEC_FLAG_PASS2)
784 snprintf(buf + strlen(buf), buf_size - strlen(buf),
785 ", pass 2");
786 }
a96b68b7 787 if (bitrate != 0) {
115329f1 788 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 789 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
790 }
791}
792
156e5023
NK
793unsigned avcodec_version( void )
794{
795 return LIBAVCODEC_VERSION_INT;
796}
cf087595 797
de6d9b64
FB
798void avcodec_init(void)
799{
5e534865 800 static int initialized = 0;
0344cd0a 801
5e534865 802 if (initialized != 0)
bb270c08 803 return;
5e534865 804 initialized = 1;
0344cd0a 805
486497e0 806 dsputil_static_init();
de6d9b64
FB
807}
808
1c2a8c7f
MN
809void avcodec_flush_buffers(AVCodecContext *avctx)
810{
7a06ff14
MN
811 if(avctx->codec->flush)
812 avctx->codec->flush(avctx);
1c2a8c7f
MN
813}
814
b100eab8 815void avcodec_default_free_buffers(AVCodecContext *s){
d90cf87b
MN
816 int i, j;
817
818 if(s->internal_buffer==NULL) return;
115329f1 819
d90cf87b
MN
820 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
821 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
822 for(j=0; j<4; j++){
823 av_freep(&buf->base[j]);
824 buf->data[j]= NULL;
825 }
826 }
827 av_freep(&s->internal_buffer);
115329f1 828
d90cf87b
MN
829 s->internal_buffer_count=0;
830}
831
d8085ea7
MN
832char av_get_pict_type_char(int pict_type){
833 switch(pict_type){
fbd4293d
AJ
834 case FF_I_TYPE: return 'I';
835 case FF_P_TYPE: return 'P';
836 case FF_B_TYPE: return 'B';
837 case FF_S_TYPE: return 'S';
838 case FF_SI_TYPE:return 'i';
839 case FF_SP_TYPE:return 'p';
48d533e6 840 case FF_BI_TYPE:return 'b';
c06ccb13 841 default: return '?';
d8085ea7
MN
842 }
843}
844
ac3e1834
BC
845int av_get_bits_per_sample(enum CodecID codec_id){
846 switch(codec_id){
5da71469 847 case CODEC_ID_ADPCM_SBPRO_2:
f1b163e0 848 return 2;
5da71469 849 case CODEC_ID_ADPCM_SBPRO_3:
f1b163e0 850 return 3;
5da71469 851 case CODEC_ID_ADPCM_SBPRO_4:
f1b163e0
AJ
852 case CODEC_ID_ADPCM_CT:
853 return 4;
ac3e1834
BC
854 case CODEC_ID_PCM_ALAW:
855 case CODEC_ID_PCM_MULAW:
856 case CODEC_ID_PCM_S8:
857 case CODEC_ID_PCM_U8:
9d49b8ff 858 case CODEC_ID_PCM_ZORK:
ac3e1834
BC
859 return 8;
860 case CODEC_ID_PCM_S16BE:
861 case CODEC_ID_PCM_S16LE:
725d86bf 862 case CODEC_ID_PCM_S16LE_PLANAR:
ac3e1834
BC
863 case CODEC_ID_PCM_U16BE:
864 case CODEC_ID_PCM_U16LE:
865 return 16;
866 case CODEC_ID_PCM_S24DAUD:
867 case CODEC_ID_PCM_S24BE:
868 case CODEC_ID_PCM_S24LE:
869 case CODEC_ID_PCM_U24BE:
870 case CODEC_ID_PCM_U24LE:
871 return 24;
872 case CODEC_ID_PCM_S32BE:
873 case CODEC_ID_PCM_S32LE:
874 case CODEC_ID_PCM_U32BE:
875 case CODEC_ID_PCM_U32LE:
aa29709e 876 case CODEC_ID_PCM_F32BE:
143a5d6f 877 case CODEC_ID_PCM_F32LE:
ac3e1834 878 return 32;
143a5d6f
PR
879 case CODEC_ID_PCM_F64BE:
880 case CODEC_ID_PCM_F64LE:
881 return 64;
ac3e1834
BC
882 default:
883 return 0;
884 }
885}
886
42c71907
DC
887int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
888 switch (sample_fmt) {
889 case SAMPLE_FMT_U8:
890 return 8;
891 case SAMPLE_FMT_S16:
892 return 16;
42c71907
DC
893 case SAMPLE_FMT_S32:
894 case SAMPLE_FMT_FLT:
895 return 32;
e06b00f3
PR
896 case SAMPLE_FMT_DBL:
897 return 64;
42c71907
DC
898 default:
899 return 0;
900 }
901}
902
b250f9c6 903#if !HAVE_THREADS
ca8ad847
MN
904int avcodec_thread_init(AVCodecContext *s, int thread_count){
905 return -1;
906}
907#endif
ad2b531d
MR
908
909unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
910{
911 unsigned int n = 0;
912
913 while(v >= 0xff) {
914 *s++ = 0xff;
915 v -= 0xff;
916 n++;
917 }
918 *s = v;
919 n++;
920 return n;
921}
1005f542
CH
922
923/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
924 * Also, tries to create file in /tmp first, if possible.
925 * *prefix can be a character constant; *filename will be allocated internally.
926 * Returns file descriptor of opened file (or -1 on error)
927 * and opened file name in **filename. */
928int av_tempfile(char *prefix, char **filename) {
929 int fd=-1;
b250f9c6 930#if !HAVE_MKSTEMP
1005f542
CH
931 *filename = tempnam(".", prefix);
932#else
933 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
f2508b17 934 *filename = av_malloc(len);
1005f542
CH
935#endif
936 /* -----common section-----*/
937 if (*filename == NULL) {
938 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
939 return -1;
940 }
b250f9c6 941#if !HAVE_MKSTEMP
76353b42 942 fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1005f542
CH
943#else
944 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
945 fd = mkstemp(*filename);
946 if (fd < 0) {
947 snprintf(*filename, len, "./%sXXXXXX", prefix);
948 fd = mkstemp(*filename);
949 }
950#endif
951 /* -----common section-----*/
952 if (fd < 0) {
953 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
954 return -1;
955 }
956 return fd; /* success */
957}
26ef3220
SS
958
959typedef struct {
c0ad72a7 960 const char *abbr;
26ef3220 961 int width, height;
c0ad72a7
SS
962} VideoFrameSizeAbbr;
963
964typedef struct {
965 const char *abbr;
966 int rate_num, rate_den;
967} VideoFrameRateAbbr;
968
cf2baeb3 969static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
c0ad72a7
SS
970 { "ntsc", 720, 480 },
971 { "pal", 720, 576 },
972 { "qntsc", 352, 240 }, /* VCD compliant NTSC */
973 { "qpal", 352, 288 }, /* VCD compliant PAL */
974 { "sntsc", 640, 480 }, /* square pixel NTSC */
975 { "spal", 768, 576 }, /* square pixel PAL */
976 { "film", 352, 240 },
977 { "ntsc-film", 352, 240 },
978 { "sqcif", 128, 96 },
979 { "qcif", 176, 144 },
980 { "cif", 352, 288 },
981 { "4cif", 704, 576 },
982 { "qqvga", 160, 120 },
983 { "qvga", 320, 240 },
984 { "vga", 640, 480 },
985 { "svga", 800, 600 },
986 { "xga", 1024, 768 },
987 { "uxga", 1600,1200 },
988 { "qxga", 2048,1536 },
989 { "sxga", 1280,1024 },
990 { "qsxga", 2560,2048 },
991 { "hsxga", 5120,4096 },
992 { "wvga", 852, 480 },
993 { "wxga", 1366, 768 },
994 { "wsxga", 1600,1024 },
995 { "wuxga", 1920,1200 },
996 { "woxga", 2560,1600 },
997 { "wqsxga", 3200,2048 },
998 { "wquxga", 3840,2400 },
999 { "whsxga", 6400,4096 },
1000 { "whuxga", 7680,4800 },
1001 { "cga", 320, 200 },
1002 { "ega", 640, 350 },
1003 { "hd480", 852, 480 },
1004 { "hd720", 1280, 720 },
1005 { "hd1080", 1920,1080 },
1006};
1007
cf2baeb3 1008static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
c0ad72a7
SS
1009 { "ntsc", 30000, 1001 },
1010 { "pal", 25, 1 },
1011 { "qntsc", 30000, 1001 }, /* VCD compliant NTSC */
1012 { "qpal", 25, 1 }, /* VCD compliant PAL */
1013 { "sntsc", 30000, 1001 }, /* square pixel NTSC */
1014 { "spal", 25, 1 }, /* square pixel PAL */
1015 { "film", 24, 1 },
1016 { "ntsc-film", 24000, 1001 },
26ef3220
SS
1017};
1018
1019int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1020{
1021 int i;
37d3e066 1022 int n = FF_ARRAY_ELEMS(video_frame_size_abbrs);
26ef3220
SS
1023 const char *p;
1024 int frame_width = 0, frame_height = 0;
1025
1026 for(i=0;i<n;i++) {
c0ad72a7
SS
1027 if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1028 frame_width = video_frame_size_abbrs[i].width;
1029 frame_height = video_frame_size_abbrs[i].height;
26ef3220
SS
1030 break;
1031 }
1032 }
1033 if (i == n) {
1034 p = str;
1035 frame_width = strtol(p, (char **)&p, 10);
1036 if (*p)
1037 p++;
1038 frame_height = strtol(p, (char **)&p, 10);
1039 }
1040 if (frame_width <= 0 || frame_height <= 0)
1041 return -1;
1042 *width_ptr = frame_width;
1043 *height_ptr = frame_height;
1044 return 0;
1045}
1046
1047int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1048{
1049 int i;
37d3e066 1050 int n = FF_ARRAY_ELEMS(video_frame_rate_abbrs);
26ef3220
SS
1051 char* cp;
1052
1053 /* First, we check our abbreviation table */
c0ad72a7
SS
1054 for (i = 0; i < n; ++i)
1055 if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1056 frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1057 frame_rate->den = video_frame_rate_abbrs[i].rate_den;
26ef3220
SS
1058 return 0;
1059 }
1060
1061 /* Then, we try to parse it as fraction */
1062 cp = strchr(arg, '/');
1063 if (!cp)
1064 cp = strchr(arg, ':');
1065 if (cp) {
1066 char* cpp;
1067 frame_rate->num = strtol(arg, &cpp, 10);
1068 if (cpp != arg || cpp == cp)
1069 frame_rate->den = strtol(cp+1, &cpp, 10);
1070 else
1071 frame_rate->num = 0;
1072 }
1073 else {
1074 /* Finally we give up and parse it as double */
38360668 1075 AVRational time_base = av_d2q(strtod(arg, 0), 1001000);
26ef3220
SS
1076 frame_rate->den = time_base.den;
1077 frame_rate->num = time_base.num;
1078 }
1079 if (!frame_rate->num || !frame_rate->den)
1080 return -1;
1081 else
1082 return 0;
1083}
ea779d91 1084
dbbec0c2 1085void ff_log_missing_feature(void *avc, const char *feature, int want_sample)
ea779d91
JR
1086{
1087 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1088 "version to the newest one from SVN. If the problem still "
1089 "occurs, it means that your file has a feature which has not "
1090 "been implemented.", feature);
1091 if(want_sample)
1092 av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
0fa5f24c 1093 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
5163c0d9 1094 "and contact the ffmpeg-devel mailing list.");
ea779d91
JR
1095 av_log(avc, AV_LOG_WARNING, "\n");
1096}