Use void * instead of uint8_t * for the destination buffer for dsp.bswap_buf
[libav.git] / libavcodec / utils.c
CommitLineData
de6d9b64
FB
1/*
2 * utils for libavcodec
406792e7 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 23/**
bad5537e 24 * @file libavcodec/utils.c
983e3246
MN
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"
0ba39dd1 39#include "internal.h"
7246177d 40#include <stdlib.h>
9b879566 41#include <stdarg.h>
4c263142 42#include <limits.h>
860a40c8 43#include <float.h>
b250f9c6 44#if !HAVE_MKSTEMP
1005f542
CH
45#include <fcntl.h>
46#endif
de6d9b64 47
44608ac7
RG
48const uint8_t ff_reverse[256]={
490x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
500x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
510x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
520x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
530x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
540x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
550x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
560x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
570x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
580x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
590x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
600x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
610x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
620x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
630x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
640x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
65};
66
ddebfb15
MN
67static int volatile entangled_thread_counter=0;
68
5c91a675 69void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
8e1e6f31 70{
115329f1 71 if(min_size < *size)
8e1e6f31 72 return ptr;
115329f1 73
0ecca7a4 74 *size= FFMAX(17*min_size/16 + 32, min_size);
8e1e6f31 75
978805b2
MN
76 ptr= av_realloc(ptr, *size);
77 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
78 *size= 0;
79
80 return ptr;
8e1e6f31
FB
81}
82
de6d9b64 83/* encoder management */
e6df765e 84static AVCodec *first_avcodec = NULL;
de6d9b64 85
55b9e69a
MN
86AVCodec *av_codec_next(AVCodec *c){
87 if(c) return c->next;
88 else return first_avcodec;
89}
90
85662f49 91void avcodec_register(AVCodec *codec)
de6d9b64
FB
92{
93 AVCodec **p;
7a961a46 94 avcodec_init();
de6d9b64
FB
95 p = &first_avcodec;
96 while (*p != NULL) p = &(*p)->next;
335a761a
SS
97 *p = codec;
98 codec->next = NULL;
de6d9b64
FB
99}
100
9d385cfe 101#if LIBAVCODEC_VERSION_MAJOR < 53
85662f49
SS
102void register_avcodec(AVCodec *codec)
103{
104 avcodec_register(codec);
105}
9d385cfe 106#endif
85662f49 107
21adafec
MN
108void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
109 s->coded_width = width;
110 s->coded_height= height;
111 s->width = -((-width )>>s->lowres);
112 s->height= -((-height)>>s->lowres);
113}
114
d90cf87b 115typedef struct InternalBuffer{
1e491e29 116 int last_pic_num;
d90cf87b 117 uint8_t *base[4];
1e491e29 118 uint8_t *data[4];
237e4938 119 int linesize[4];
0701006e
MN
120 int width, height;
121 enum PixelFormat pix_fmt;
d90cf87b
MN
122}InternalBuffer;
123
124#define INTERNAL_BUFFER_SIZE 32
1e491e29 125
f0bbfc4a
MN
126#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
127
128void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
115329f1
DB
129 int w_align= 1;
130 int h_align= 1;
131
f0bbfc4a
MN
132 switch(s->pix_fmt){
133 case PIX_FMT_YUV420P:
71e445fc 134 case PIX_FMT_YUYV422:
ebb177dd 135 case PIX_FMT_UYVY422:
f0bbfc4a
MN
136 case PIX_FMT_YUV422P:
137 case PIX_FMT_YUV444P:
138 case PIX_FMT_GRAY8:
34380af0
KS
139 case PIX_FMT_GRAY16BE:
140 case PIX_FMT_GRAY16LE:
f0bbfc4a
MN
141 case PIX_FMT_YUVJ420P:
142 case PIX_FMT_YUVJ422P:
143 case PIX_FMT_YUVJ444P:
b70335a2 144 case PIX_FMT_YUVA420P:
f0bbfc4a
MN
145 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
146 h_align= 16;
c81185a1
MN
147 if(s->codec_id == CODEC_ID_MPEG2VIDEO)
148 h_align= 32; // interlaced is rounded up to 2 MBs
f0bbfc4a
MN
149 break;
150 case PIX_FMT_YUV411P:
71e445fc 151 case PIX_FMT_UYYVYY411:
f0bbfc4a
MN
152 w_align=32;
153 h_align=8;
154 break;
155 case PIX_FMT_YUV410P:
156 if(s->codec_id == CODEC_ID_SVQ1){
157 w_align=64;
158 h_align=64;
159 }
d99fbbf4
RT
160 case PIX_FMT_RGB555:
161 if(s->codec_id == CODEC_ID_RPZA){
162 w_align=4;
163 h_align=4;
164 }
165 case PIX_FMT_PAL8:
6337178b
MN
166 case PIX_FMT_BGR8:
167 case PIX_FMT_RGB8:
d99fbbf4
RT
168 if(s->codec_id == CODEC_ID_SMC){
169 w_align=4;
170 h_align=4;
171 }
f0bbfc4a 172 break;
c31b8121
RT
173 case PIX_FMT_BGR24:
174 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
175 w_align=4;
176 h_align=4;
177 }
178 break;
f0bbfc4a
MN
179 default:
180 w_align= 1;
181 h_align= 1;
182 break;
183 }
184
185 *width = ALIGN(*width , w_align);
186 *height= ALIGN(*height, h_align);
ae4ffe9f
MN
187 if(s->codec_id == CODEC_ID_H264)
188 *height+=2; // some of the optimized chroma MC reads one line too much
f0bbfc4a
MN
189}
190
0ecca7a4
MN
191int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
192 if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
193 return 0;
115329f1 194
0ecca7a4
MN
195 av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
196 return -1;
197}
198
492cd3a9 199int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 200 int i;
f0bbfc4a
MN
201 int w= s->width;
202 int h= s->height;
d90cf87b 203 InternalBuffer *buf;
237e4938 204 int *picture_number;
0ecca7a4 205
65d999d6
MB
206 if(pic->data[0]!=NULL) {
207 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
208 return -1;
209 }
210 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
211 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
212 return -1;
213 }
1e491e29 214
0ecca7a4
MN
215 if(avcodec_check_dimensions(s,w,h))
216 return -1;
217
d90cf87b 218 if(s->internal_buffer==NULL){
6ebc89ac 219 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
d90cf87b
MN
220 }
221#if 0
222 s->internal_buffer= av_fast_realloc(
115329f1
DB
223 s->internal_buffer,
224 &s->internal_buffer_size,
d90cf87b
MN
225 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
226 );
227#endif
115329f1 228
d90cf87b 229 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
6ebc89ac 230 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
237e4938 231 (*picture_number)++;
115329f1 232
0701006e
MN
233 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
234 for(i=0; i<4; i++){
235 av_freep(&buf->base[i]);
236 buf->data[i]= NULL;
237 }
238 }
239
d90cf87b 240 if(buf->base[0]){
237e4938
MN
241 pic->age= *picture_number - buf->last_pic_num;
242 buf->last_pic_num= *picture_number;
1e491e29 243 }else{
f0bbfc4a 244 int h_chroma_shift, v_chroma_shift;
db7ae7d1
VS
245 int size[4] = {0};
246 int tmpsize;
c9d6e847 247 int unaligned;
c7622f9a 248 AVPicture picture;
503bc402 249 int stride_align[4];
c7622f9a 250
1e491e29 251 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
f0bbfc4a
MN
252
253 avcodec_align_dimensions(s, &w, &h);
115329f1 254
1e491e29
MN
255 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
256 w+= EDGE_WIDTH*2;
257 h+= EDGE_WIDTH*2;
258 }
5b67307a 259
c9d6e847
RD
260 do {
261 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
262 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
45bae968 263 ff_fill_linesize(&picture, s->pix_fmt, w);
c9d6e847
RD
264 // increase alignment of w for next try (rhs gives the lowest bit set in w)
265 w += w & ~(w-1);
db7ae7d1 266
c9d6e847 267 unaligned = 0;
45bae968 268 for (i=0; i<4; i++){
503bc402
MN
269//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
270//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
271//picture size unneccessarily in some cases. The solution here is not
272//pretty and better ideas are welcome!
b250f9c6 273#if HAVE_MMX
45bae968
RD
274 if(s->codec_id == CODEC_ID_SVQ1)
275 stride_align[i]= 16;
276 else
503bc402 277#endif
45bae968 278 stride_align[i] = STRIDE_ALIGN;
c9d6e847 279 unaligned |= picture.linesize[i] % stride_align[i];
45bae968 280 }
c9d6e847 281 } while (unaligned);
db7ae7d1 282
db7ae7d1 283 tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
f8c96d01
RD
284 if (tmpsize < 0)
285 return -1;
db7ae7d1
VS
286
287 for (i=0; i<3 && picture.data[i+1]; i++)
288 size[i] = picture.data[i+1] - picture.data[i];
cf73e32a 289 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
c7622f9a 290
d90cf87b 291 buf->last_pic_num= -256*256*256*64;
c7622f9a
MN
292 memset(buf->base, 0, sizeof(buf->base));
293 memset(buf->data, 0, sizeof(buf->data));
1e491e29 294
b70335a2 295 for(i=0; i<4 && size[i]; i++){
2c19981a
MN
296 const int h_shift= i==0 ? 0 : h_chroma_shift;
297 const int v_shift= i==0 ? 0 : v_chroma_shift;
1e491e29 298
c7622f9a 299 buf->linesize[i]= picture.linesize[i];
1e491e29 300
c7622f9a 301 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
d90cf87b 302 if(buf->base[i]==NULL) return -1;
c7622f9a
MN
303 memset(buf->base[i], 128, size[i]);
304
6337178b
MN
305 // no edge if EDEG EMU or not planar YUV
306 if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
d90cf87b 307 buf->data[i] = buf->base[i];
1e491e29 308 else
503bc402 309 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
1e491e29 310 }
6337178b
MN
311 if(size[1] && !size[2])
312 ff_set_systematic_pal((uint32_t*)buf->data[1], s->pix_fmt);
0701006e
MN
313 buf->width = s->width;
314 buf->height = s->height;
315 buf->pix_fmt= s->pix_fmt;
1e491e29
MN
316 pic->age= 256*256*256*64;
317 }
237e4938 318 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29 319
d90cf87b
MN
320 for(i=0; i<4; i++){
321 pic->base[i]= buf->base[i];
322 pic->data[i]= buf->data[i];
237e4938 323 pic->linesize[i]= buf->linesize[i];
d90cf87b
MN
324 }
325 s->internal_buffer_count++;
326
79de84f2
MN
327 pic->reordered_opaque= s->reordered_opaque;
328
385c820b
AS
329 if(s->debug&FF_DEBUG_BUFFERS)
330 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
331
1e491e29
MN
332 return 0;
333}
334
492cd3a9 335void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 336 int i;
6829ac8d 337 InternalBuffer *buf, *last;
d90cf87b 338
4e00e76b 339 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
59c673d5 340 assert(s->internal_buffer_count);
d90cf87b 341
b1609412 342 buf = NULL; /* avoids warning */
d90cf87b
MN
343 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
344 buf= &((InternalBuffer*)s->internal_buffer)[i];
345 if(buf->data[0] == pic->data[0])
346 break;
347 }
348 assert(i < s->internal_buffer_count);
349 s->internal_buffer_count--;
350 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
351
6829ac8d 352 FFSWAP(InternalBuffer, *buf, *last);
d90cf87b 353
b70335a2 354 for(i=0; i<4; i++){
1e491e29 355 pic->data[i]=NULL;
d90cf87b
MN
356// pic->base[i]=NULL;
357 }
1e491e29 358//printf("R%X\n", pic->opaque);
385c820b
AS
359
360 if(s->debug&FF_DEBUG_BUFFERS)
361 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
1e491e29
MN
362}
363
e1c2a5a0
RT
364int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
365 AVFrame temp_pic;
366 int i;
367
368 /* If no picture return a new buffer */
369 if(pic->data[0] == NULL) {
370 /* We will copy from buffer, so must be readable */
371 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
372 return s->get_buffer(s, pic);
373 }
374
375 /* If internal buffer type return the same buffer */
376 if(pic->type == FF_BUFFER_TYPE_INTERNAL)
377 return 0;
378
379 /*
380 * Not internal type and reget_buffer not overridden, emulate cr buffer
381 */
382 temp_pic = *pic;
383 for(i = 0; i < 4; i++)
384 pic->data[i] = pic->base[i] = NULL;
385 pic->opaque = NULL;
386 /* Allocate new frame */
387 if (s->get_buffer(s, pic))
388 return -1;
389 /* Copy image data from old buffer to new buffer */
636d6a4a 390 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
e1c2a5a0
RT
391 s->height);
392 s->release_buffer(s, &temp_pic); // Release old frame
393 return 0;
394}
395
3a84713a 396int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
9c3d33d6
MN
397 int i;
398
399 for(i=0; i<count; i++){
3a84713a 400 int r= func(c, (char*)arg + i*size);
9c3d33d6
MN
401 if(ret) ret[i]= r;
402 }
403 return 0;
404}
405
c269cf68
MN
406enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
407 while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
408 ++fmt;
a33c7159
MN
409 return fmt[0];
410}
411
9740beff
MN
412void avcodec_get_frame_defaults(AVFrame *pic){
413 memset(pic, 0, sizeof(AVFrame));
414
415 pic->pts= AV_NOPTS_VALUE;
c342499d 416 pic->key_frame= 1;
9740beff
MN
417}
418
492cd3a9 419AVFrame *avcodec_alloc_frame(void){
9740beff 420 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 421
9740beff 422 if(pic==NULL) return NULL;
115329f1 423
9740beff 424 avcodec_get_frame_defaults(pic);
115329f1 425
1e491e29
MN
426 return pic;
427}
428
5e4c7ca2 429int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
de6d9b64 430{
ddebfb15 431 int ret= -1;
115329f1 432
ddebfb15
MN
433 entangled_thread_counter++;
434 if(entangled_thread_counter != 1){
435 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
436 goto end;
437 }
de6d9b64 438
9c87b8f7 439 if(avctx->codec || !codec)
ddebfb15 440 goto end;
09770af8 441
0edf8a7a
PG
442 if (codec->priv_data_size > 0) {
443 avctx->priv_data = av_mallocz(codec->priv_data_size);
90f06cea
PI
444 if (!avctx->priv_data) {
445 ret = AVERROR(ENOMEM);
ddebfb15 446 goto end;
90f06cea 447 }
0edf8a7a
PG
448 } else {
449 avctx->priv_data = NULL;
450 }
21adafec
MN
451
452 if(avctx->coded_width && avctx->coded_height)
453 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
454 else if(avctx->width && avctx->height)
455 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
456
0ecca7a4
MN
457 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
458 av_freep(&avctx->priv_data);
7868349a 459 ret = AVERROR(EINVAL);
ddebfb15 460 goto end;
0ecca7a4
MN
461 }
462
b5c85991
MN
463 avctx->codec = codec;
464 avctx->codec_id = codec->id;
465 avctx->frame_number = 0;
6e546aaa 466 if(avctx->codec->init){
2de4f9eb
MN
467 ret = avctx->codec->init(avctx);
468 if (ret < 0) {
469 av_freep(&avctx->priv_data);
470 avctx->codec= NULL;
471 goto end;
472 }
6e546aaa 473 }
ddebfb15
MN
474 ret=0;
475end:
476 entangled_thread_counter--;
477 return ret;
de6d9b64
FB
478}
479
5e4c7ca2 480int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64
FB
481 const short *samples)
482{
0ecca7a4 483 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
5286d11f 484 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
485 return -1;
486 }
6f824977 487 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
8eb027c8 488 int ret = avctx->codec->encode(avctx, buf, buf_size, samples);
6f824977
MN
489 avctx->frame_number++;
490 return ret;
491 }else
492 return 0;
de6d9b64
FB
493}
494
5e4c7ca2 495int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 496 const AVFrame *pict)
de6d9b64 497{
0ecca7a4 498 if(buf_size < FF_MIN_BUFFER_SIZE){
5286d11f 499 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
500 return -1;
501 }
502 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
503 return -1;
6f824977 504 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
8eb027c8 505 int ret = avctx->codec->encode(avctx, buf, buf_size, pict);
6f824977 506 avctx->frame_number++;
bb628dae 507 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 508
6f824977
MN
509 return ret;
510 }else
511 return 0;
de6d9b64
FB
512}
513
115329f1 514int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
515 const AVSubtitle *sub)
516{
517 int ret;
9413db9e
BA
518 if(sub->start_display_time) {
519 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
520 return -1;
521 }
505aa6c9
BA
522 if(sub->num_rects == 0 || !sub->rects)
523 return -1;
8eb027c8 524 ret = avctx->codec->encode(avctx, buf, buf_size, sub);
240c1657
FB
525 avctx->frame_number++;
526 return ret;
527}
528
7a00bbad 529#if LIBAVCODEC_VERSION_MAJOR < 53
5e4c7ca2 530int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 531 int *got_picture_ptr,
2efa7fd1 532 const uint8_t *buf, int buf_size)
de6d9b64 533{
7a00bbad
TB
534 AVPacket avpkt;
535 av_init_packet(&avpkt);
536 avpkt.data = buf;
537 avpkt.size = buf_size;
538
539 return avcodec_decode_video2(avctx, picture, got_picture_ptr, &avpkt);
540}
541#endif
542
543int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
544 int *got_picture_ptr,
545 AVPacket *avpkt)
546{
de6d9b64 547 int ret;
115329f1 548
53db1cae 549 *got_picture_ptr= 0;
0ecca7a4
MN
550 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
551 return -1;
7a00bbad 552 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
115329f1 553 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
7a00bbad 554 avpkt);
6bb925f4 555
bb628dae 556 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1
DB
557
558 if (*got_picture_ptr)
934982c4
MN
559 avctx->frame_number++;
560 }else
561 ret= 0;
562
de6d9b64
FB
563 return ret;
564}
565
7a00bbad 566#if LIBAVCODEC_VERSION_MAJOR < 53
5e4c7ca2 567int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
de6d9b64 568 int *frame_size_ptr,
2efa7fd1 569 const uint8_t *buf, int buf_size)
de6d9b64 570{
7a00bbad
TB
571 AVPacket avpkt;
572 av_init_packet(&avpkt);
573 avpkt.data = buf;
574 avpkt.size = buf_size;
575
576 return avcodec_decode_audio3(avctx, samples, frame_size_ptr, &avpkt);
577}
578#endif
579
580int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
581 int *frame_size_ptr,
582 AVPacket *avpkt)
583{
de6d9b64
FB
584 int ret;
585
7a00bbad 586 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
9c856d62
MN
587 //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
588 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
589 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
590 return -1;
591 }
592 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
81fc2f37 593 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
9c856d62
MN
594 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
595 return -1;
596 }
597
7a00bbad 598 ret = avctx->codec->decode(avctx, samples, frame_size_ptr, avpkt);
fec9ccb7 599 avctx->frame_number++;
ac66834c 600 }else{
fec9ccb7 601 ret= 0;
ac66834c
MN
602 *frame_size_ptr=0;
603 }
de6d9b64
FB
604 return ret;
605}
606
7a00bbad 607#if LIBAVCODEC_VERSION_MAJOR < 53
240c1657
FB
608int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
609 int *got_sub_ptr,
610 const uint8_t *buf, int buf_size)
611{
7a00bbad
TB
612 AVPacket avpkt;
613 av_init_packet(&avpkt);
614 avpkt.data = buf;
615 avpkt.size = buf_size;
616
617 return avcodec_decode_subtitle2(avctx, sub, got_sub_ptr, &avpkt);
618}
619#endif
620
621int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
622 int *got_sub_ptr,
623 AVPacket *avpkt)
624{
240c1657
FB
625 int ret;
626
627 *got_sub_ptr = 0;
7a00bbad 628 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
240c1657
FB
629 if (*got_sub_ptr)
630 avctx->frame_number++;
631 return ret;
632}
633
de6d9b64
FB
634int avcodec_close(AVCodecContext *avctx)
635{
ddebfb15
MN
636 entangled_thread_counter++;
637 if(entangled_thread_counter != 1){
638 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
639 entangled_thread_counter--;
640 return -1;
641 }
642
49fb20cb 643 if (HAVE_THREADS && avctx->thread_opaque)
ab2cfc59 644 avcodec_thread_free(avctx);
de6d9b64
FB
645 if (avctx->codec->close)
646 avctx->codec->close(avctx);
eea8c08f 647 avcodec_default_free_buffers(avctx);
3123dd79 648 av_freep(&avctx->priv_data);
de6d9b64 649 avctx->codec = NULL;
ddebfb15 650 entangled_thread_counter--;
de6d9b64
FB
651 return 0;
652}
653
654AVCodec *avcodec_find_encoder(enum CodecID id)
655{
656 AVCodec *p;
657 p = first_avcodec;
658 while (p) {
659 if (p->encode != NULL && p->id == id)
660 return p;
661 p = p->next;
662 }
663 return NULL;
664}
665
98f3b098
A
666AVCodec *avcodec_find_encoder_by_name(const char *name)
667{
668 AVCodec *p;
fc228c90
AJ
669 if (!name)
670 return NULL;
98f3b098
A
671 p = first_avcodec;
672 while (p) {
673 if (p->encode != NULL && strcmp(name,p->name) == 0)
674 return p;
675 p = p->next;
676 }
677 return NULL;
678}
679
de6d9b64
FB
680AVCodec *avcodec_find_decoder(enum CodecID id)
681{
682 AVCodec *p;
683 p = first_avcodec;
684 while (p) {
685 if (p->decode != NULL && p->id == id)
686 return p;
687 p = p->next;
688 }
689 return NULL;
690}
691
692AVCodec *avcodec_find_decoder_by_name(const char *name)
693{
694 AVCodec *p;
fc228c90
AJ
695 if (!name)
696 return NULL;
de6d9b64
FB
697 p = first_avcodec;
698 while (p) {
699 if (p->decode != NULL && strcmp(name,p->name) == 0)
700 return p;
701 p = p->next;
702 }
703 return NULL;
704}
705
de6d9b64
FB
706void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
707{
708 const char *codec_name;
709 AVCodec *p;
710 char buf1[32];
a96b68b7 711 int bitrate;
59771f71 712 AVRational display_aspect_ratio;
de6d9b64
FB
713
714 if (encode)
715 p = avcodec_find_encoder(enc->codec_id);
716 else
717 p = avcodec_find_decoder(enc->codec_id);
718
719 if (p) {
720 codec_name = p->name;
985180a1
FB
721 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
722 /* fake mpeg2 transport stream codec (currently not
723 registered) */
724 codec_name = "mpeg2ts";
de6d9b64
FB
725 } else if (enc->codec_name[0] != '\0') {
726 codec_name = enc->codec_name;
727 } else {
728 /* output avi tags */
115329f1 729 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
b983a5c6 730 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
115329f1 731 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
de6d9b64
FB
732 enc->codec_tag & 0xff,
733 (enc->codec_tag >> 8) & 0xff,
734 (enc->codec_tag >> 16) & 0xff,
b983a5c6
MN
735 (enc->codec_tag >> 24) & 0xff,
736 enc->codec_tag);
de6d9b64
FB
737 } else {
738 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
739 }
740 codec_name = buf1;
741 }
742
743 switch(enc->codec_type) {
744 case CODEC_TYPE_VIDEO:
745 snprintf(buf, buf_size,
746 "Video: %s%s",
7d1c3fc1 747 codec_name, enc->mb_decision ? " (hq)" : "");
82c0c4ba 748 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
749 snprintf(buf + strlen(buf), buf_size - strlen(buf),
750 ", %s",
9bbffbb1 751 avcodec_get_pix_fmt_name(enc->pix_fmt));
cf087595 752 }
de6d9b64
FB
753 if (enc->width) {
754 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
755 ", %dx%d",
756 enc->width, enc->height);
7ee4dd02 757 if (enc->sample_aspect_ratio.num) {
cbaf50f8
BC
758 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
759 enc->width*enc->sample_aspect_ratio.num,
760 enc->height*enc->sample_aspect_ratio.den,
761 1024*1024);
762 snprintf(buf + strlen(buf), buf_size - strlen(buf),
763 " [PAR %d:%d DAR %d:%d]",
764 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
765 display_aspect_ratio.num, display_aspect_ratio.den);
7ee4dd02 766 }
a309073b 767 if(av_log_get_level() >= AV_LOG_DEBUG){
9ce6c138 768 int g= av_gcd(enc->time_base.num, enc->time_base.den);
21189011
MN
769 snprintf(buf + strlen(buf), buf_size - strlen(buf),
770 ", %d/%d",
771 enc->time_base.num/g, enc->time_base.den/g);
772 }
de6d9b64 773 }
4bfad535
FB
774 if (encode) {
775 snprintf(buf + strlen(buf), buf_size - strlen(buf),
776 ", q=%d-%d", enc->qmin, enc->qmax);
777 }
a96b68b7 778 bitrate = enc->bit_rate;
de6d9b64
FB
779 break;
780 case CODEC_TYPE_AUDIO:
781 snprintf(buf, buf_size,
782 "Audio: %s",
783 codec_name);
784 if (enc->sample_rate) {
785 snprintf(buf + strlen(buf), buf_size - strlen(buf),
0d72e7d0 786 ", %d Hz", enc->sample_rate);
de6d9b64 787 }
0d72e7d0
PR
788 av_strlcat(buf, ", ", buf_size);
789 avcodec_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
9e82a113
PR
790 if (enc->sample_fmt != SAMPLE_FMT_NONE) {
791 snprintf(buf + strlen(buf), buf_size - strlen(buf),
792 ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
793 }
115329f1 794
a96b68b7
FB
795 /* for PCM codecs, compute bitrate directly */
796 switch(enc->codec_id) {
143a5d6f
PR
797 case CODEC_ID_PCM_F64BE:
798 case CODEC_ID_PCM_F64LE:
799 bitrate = enc->sample_rate * enc->channels * 64;
800 break;
b461b3bc
RD
801 case CODEC_ID_PCM_S32LE:
802 case CODEC_ID_PCM_S32BE:
803 case CODEC_ID_PCM_U32LE:
804 case CODEC_ID_PCM_U32BE:
aa29709e 805 case CODEC_ID_PCM_F32BE:
143a5d6f 806 case CODEC_ID_PCM_F32LE:
b461b3bc
RD
807 bitrate = enc->sample_rate * enc->channels * 32;
808 break;
809 case CODEC_ID_PCM_S24LE:
810 case CODEC_ID_PCM_S24BE:
811 case CODEC_ID_PCM_U24LE:
812 case CODEC_ID_PCM_U24BE:
813 case CODEC_ID_PCM_S24DAUD:
814 bitrate = enc->sample_rate * enc->channels * 24;
815 break;
a96b68b7
FB
816 case CODEC_ID_PCM_S16LE:
817 case CODEC_ID_PCM_S16BE:
725d86bf 818 case CODEC_ID_PCM_S16LE_PLANAR:
a96b68b7
FB
819 case CODEC_ID_PCM_U16LE:
820 case CODEC_ID_PCM_U16BE:
a190b7e9 821 bitrate = enc->sample_rate * enc->channels * 16;
a96b68b7
FB
822 break;
823 case CODEC_ID_PCM_S8:
824 case CODEC_ID_PCM_U8:
825 case CODEC_ID_PCM_ALAW:
826 case CODEC_ID_PCM_MULAW:
9d49b8ff 827 case CODEC_ID_PCM_ZORK:
a190b7e9 828 bitrate = enc->sample_rate * enc->channels * 8;
a96b68b7
FB
829 break;
830 default:
831 bitrate = enc->bit_rate;
832 break;
833 }
de6d9b64 834 break;
985180a1
FB
835 case CODEC_TYPE_DATA:
836 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657
FB
837 bitrate = enc->bit_rate;
838 break;
839 case CODEC_TYPE_SUBTITLE:
840 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1
FB
841 bitrate = enc->bit_rate;
842 break;
f8d7c9d3
ES
843 case CODEC_TYPE_ATTACHMENT:
844 snprintf(buf, buf_size, "Attachment: %s", codec_name);
845 bitrate = enc->bit_rate;
846 break;
de6d9b64 847 default:
9fe5a7b8
MN
848 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
849 return;
de6d9b64 850 }
4bfad535
FB
851 if (encode) {
852 if (enc->flags & CODEC_FLAG_PASS1)
853 snprintf(buf + strlen(buf), buf_size - strlen(buf),
854 ", pass 1");
855 if (enc->flags & CODEC_FLAG_PASS2)
856 snprintf(buf + strlen(buf), buf_size - strlen(buf),
857 ", pass 2");
858 }
a96b68b7 859 if (bitrate != 0) {
115329f1 860 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 861 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
862 }
863}
864
156e5023
NK
865unsigned avcodec_version( void )
866{
867 return LIBAVCODEC_VERSION_INT;
868}
cf087595 869
de6d9b64
FB
870void avcodec_init(void)
871{
5e534865 872 static int initialized = 0;
0344cd0a 873
5e534865 874 if (initialized != 0)
bb270c08 875 return;
5e534865 876 initialized = 1;
0344cd0a 877
486497e0 878 dsputil_static_init();
de6d9b64
FB
879}
880
1c2a8c7f
MN
881void avcodec_flush_buffers(AVCodecContext *avctx)
882{
7a06ff14
MN
883 if(avctx->codec->flush)
884 avctx->codec->flush(avctx);
1c2a8c7f
MN
885}
886
b100eab8 887void avcodec_default_free_buffers(AVCodecContext *s){
d90cf87b
MN
888 int i, j;
889
890 if(s->internal_buffer==NULL) return;
115329f1 891
d90cf87b
MN
892 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
893 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
894 for(j=0; j<4; j++){
895 av_freep(&buf->base[j]);
896 buf->data[j]= NULL;
897 }
898 }
899 av_freep(&s->internal_buffer);
115329f1 900
d90cf87b
MN
901 s->internal_buffer_count=0;
902}
903
d8085ea7
MN
904char av_get_pict_type_char(int pict_type){
905 switch(pict_type){
fbd4293d
AJ
906 case FF_I_TYPE: return 'I';
907 case FF_P_TYPE: return 'P';
908 case FF_B_TYPE: return 'B';
909 case FF_S_TYPE: return 'S';
910 case FF_SI_TYPE:return 'i';
911 case FF_SP_TYPE:return 'p';
48d533e6 912 case FF_BI_TYPE:return 'b';
c06ccb13 913 default: return '?';
d8085ea7
MN
914 }
915}
916
ac3e1834
BC
917int av_get_bits_per_sample(enum CodecID codec_id){
918 switch(codec_id){
5da71469 919 case CODEC_ID_ADPCM_SBPRO_2:
f1b163e0 920 return 2;
5da71469 921 case CODEC_ID_ADPCM_SBPRO_3:
f1b163e0 922 return 3;
5da71469 923 case CODEC_ID_ADPCM_SBPRO_4:
f1b163e0
AJ
924 case CODEC_ID_ADPCM_CT:
925 return 4;
ac3e1834
BC
926 case CODEC_ID_PCM_ALAW:
927 case CODEC_ID_PCM_MULAW:
928 case CODEC_ID_PCM_S8:
929 case CODEC_ID_PCM_U8:
9d49b8ff 930 case CODEC_ID_PCM_ZORK:
ac3e1834
BC
931 return 8;
932 case CODEC_ID_PCM_S16BE:
933 case CODEC_ID_PCM_S16LE:
725d86bf 934 case CODEC_ID_PCM_S16LE_PLANAR:
ac3e1834
BC
935 case CODEC_ID_PCM_U16BE:
936 case CODEC_ID_PCM_U16LE:
937 return 16;
938 case CODEC_ID_PCM_S24DAUD:
939 case CODEC_ID_PCM_S24BE:
940 case CODEC_ID_PCM_S24LE:
941 case CODEC_ID_PCM_U24BE:
942 case CODEC_ID_PCM_U24LE:
943 return 24;
944 case CODEC_ID_PCM_S32BE:
945 case CODEC_ID_PCM_S32LE:
946 case CODEC_ID_PCM_U32BE:
947 case CODEC_ID_PCM_U32LE:
aa29709e 948 case CODEC_ID_PCM_F32BE:
143a5d6f 949 case CODEC_ID_PCM_F32LE:
ac3e1834 950 return 32;
143a5d6f
PR
951 case CODEC_ID_PCM_F64BE:
952 case CODEC_ID_PCM_F64LE:
953 return 64;
ac3e1834
BC
954 default:
955 return 0;
956 }
957}
958
42c71907
DC
959int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
960 switch (sample_fmt) {
961 case SAMPLE_FMT_U8:
962 return 8;
963 case SAMPLE_FMT_S16:
964 return 16;
42c71907
DC
965 case SAMPLE_FMT_S32:
966 case SAMPLE_FMT_FLT:
967 return 32;
e06b00f3
PR
968 case SAMPLE_FMT_DBL:
969 return 64;
42c71907
DC
970 default:
971 return 0;
972 }
973}
974
b250f9c6 975#if !HAVE_THREADS
ca8ad847
MN
976int avcodec_thread_init(AVCodecContext *s, int thread_count){
977 return -1;
978}
979#endif
ad2b531d
MR
980
981unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
982{
983 unsigned int n = 0;
984
985 while(v >= 0xff) {
986 *s++ = 0xff;
987 v -= 0xff;
988 n++;
989 }
990 *s = v;
991 n++;
992 return n;
993}
1005f542
CH
994
995/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
996 * Also, tries to create file in /tmp first, if possible.
997 * *prefix can be a character constant; *filename will be allocated internally.
998 * Returns file descriptor of opened file (or -1 on error)
999 * and opened file name in **filename. */
1000int av_tempfile(char *prefix, char **filename) {
1001 int fd=-1;
b250f9c6 1002#if !HAVE_MKSTEMP
1005f542
CH
1003 *filename = tempnam(".", prefix);
1004#else
1005 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
f2508b17 1006 *filename = av_malloc(len);
1005f542
CH
1007#endif
1008 /* -----common section-----*/
1009 if (*filename == NULL) {
1010 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1011 return -1;
1012 }
b250f9c6 1013#if !HAVE_MKSTEMP
76353b42 1014 fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1005f542
CH
1015#else
1016 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1017 fd = mkstemp(*filename);
1018 if (fd < 0) {
1019 snprintf(*filename, len, "./%sXXXXXX", prefix);
1020 fd = mkstemp(*filename);
1021 }
1022#endif
1023 /* -----common section-----*/
1024 if (fd < 0) {
1025 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1026 return -1;
1027 }
1028 return fd; /* success */
1029}
26ef3220
SS
1030
1031typedef struct {
c0ad72a7 1032 const char *abbr;
26ef3220 1033 int width, height;
c0ad72a7
SS
1034} VideoFrameSizeAbbr;
1035
1036typedef struct {
1037 const char *abbr;
1038 int rate_num, rate_den;
1039} VideoFrameRateAbbr;
1040
cf2baeb3 1041static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
c0ad72a7
SS
1042 { "ntsc", 720, 480 },
1043 { "pal", 720, 576 },
1044 { "qntsc", 352, 240 }, /* VCD compliant NTSC */
1045 { "qpal", 352, 288 }, /* VCD compliant PAL */
1046 { "sntsc", 640, 480 }, /* square pixel NTSC */
1047 { "spal", 768, 576 }, /* square pixel PAL */
1048 { "film", 352, 240 },
1049 { "ntsc-film", 352, 240 },
1050 { "sqcif", 128, 96 },
1051 { "qcif", 176, 144 },
1052 { "cif", 352, 288 },
1053 { "4cif", 704, 576 },
41913a35 1054 { "16cif", 1408,1152 },
c0ad72a7
SS
1055 { "qqvga", 160, 120 },
1056 { "qvga", 320, 240 },
1057 { "vga", 640, 480 },
1058 { "svga", 800, 600 },
1059 { "xga", 1024, 768 },
1060 { "uxga", 1600,1200 },
1061 { "qxga", 2048,1536 },
1062 { "sxga", 1280,1024 },
1063 { "qsxga", 2560,2048 },
1064 { "hsxga", 5120,4096 },
1065 { "wvga", 852, 480 },
1066 { "wxga", 1366, 768 },
1067 { "wsxga", 1600,1024 },
1068 { "wuxga", 1920,1200 },
1069 { "woxga", 2560,1600 },
1070 { "wqsxga", 3200,2048 },
1071 { "wquxga", 3840,2400 },
1072 { "whsxga", 6400,4096 },
1073 { "whuxga", 7680,4800 },
1074 { "cga", 320, 200 },
1075 { "ega", 640, 350 },
1076 { "hd480", 852, 480 },
1077 { "hd720", 1280, 720 },
1078 { "hd1080", 1920,1080 },
1079};
1080
cf2baeb3 1081static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
c0ad72a7
SS
1082 { "ntsc", 30000, 1001 },
1083 { "pal", 25, 1 },
1084 { "qntsc", 30000, 1001 }, /* VCD compliant NTSC */
1085 { "qpal", 25, 1 }, /* VCD compliant PAL */
1086 { "sntsc", 30000, 1001 }, /* square pixel NTSC */
1087 { "spal", 25, 1 }, /* square pixel PAL */
1088 { "film", 24, 1 },
1089 { "ntsc-film", 24000, 1001 },
26ef3220
SS
1090};
1091
1092int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1093{
1094 int i;
37d3e066 1095 int n = FF_ARRAY_ELEMS(video_frame_size_abbrs);
8468664b 1096 char *p;
26ef3220
SS
1097 int frame_width = 0, frame_height = 0;
1098
1099 for(i=0;i<n;i++) {
c0ad72a7
SS
1100 if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1101 frame_width = video_frame_size_abbrs[i].width;
1102 frame_height = video_frame_size_abbrs[i].height;
26ef3220
SS
1103 break;
1104 }
1105 }
1106 if (i == n) {
1107 p = str;
8468664b 1108 frame_width = strtol(p, &p, 10);
26ef3220
SS
1109 if (*p)
1110 p++;
8468664b 1111 frame_height = strtol(p, &p, 10);
26ef3220
SS
1112 }
1113 if (frame_width <= 0 || frame_height <= 0)
1114 return -1;
1115 *width_ptr = frame_width;
1116 *height_ptr = frame_height;
1117 return 0;
1118}
1119
1120int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1121{
1122 int i;
37d3e066 1123 int n = FF_ARRAY_ELEMS(video_frame_rate_abbrs);
26ef3220
SS
1124 char* cp;
1125
1126 /* First, we check our abbreviation table */
c0ad72a7
SS
1127 for (i = 0; i < n; ++i)
1128 if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1129 frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1130 frame_rate->den = video_frame_rate_abbrs[i].rate_den;
26ef3220
SS
1131 return 0;
1132 }
1133
1134 /* Then, we try to parse it as fraction */
1135 cp = strchr(arg, '/');
1136 if (!cp)
1137 cp = strchr(arg, ':');
1138 if (cp) {
1139 char* cpp;
1140 frame_rate->num = strtol(arg, &cpp, 10);
1141 if (cpp != arg || cpp == cp)
1142 frame_rate->den = strtol(cp+1, &cpp, 10);
1143 else
1144 frame_rate->num = 0;
1145 }
1146 else {
1147 /* Finally we give up and parse it as double */
38360668 1148 AVRational time_base = av_d2q(strtod(arg, 0), 1001000);
26ef3220
SS
1149 frame_rate->den = time_base.den;
1150 frame_rate->num = time_base.num;
1151 }
1152 if (!frame_rate->num || !frame_rate->den)
1153 return -1;
1154 else
1155 return 0;
1156}
ea779d91 1157
dbbec0c2 1158void ff_log_missing_feature(void *avc, const char *feature, int want_sample)
ea779d91
JR
1159{
1160 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1161 "version to the newest one from SVN. If the problem still "
1162 "occurs, it means that your file has a feature which has not "
1163 "been implemented.", feature);
1164 if(want_sample)
0ba39dd1
KG
1165 ff_log_ask_for_sample(avc, NULL);
1166 else
1167 av_log(avc, AV_LOG_WARNING, "\n");
1168}
1169
1170void ff_log_ask_for_sample(void *avc, const char *msg)
1171{
1172 if (msg)
1173 av_log(avc, AV_LOG_WARNING, "%s ", msg);
1174 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
1175 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
1176 "and contact the ffmpeg-devel mailing list.\n");
ea779d91 1177}
c895618b
MN
1178
1179static AVHWAccel *first_hwaccel = NULL;
1180
1181void av_register_hwaccel(AVHWAccel *hwaccel)
1182{
1183 AVHWAccel **p = &first_hwaccel;
1184 while (*p)
1185 p = &(*p)->next;
1186 *p = hwaccel;
1187 hwaccel->next = NULL;
1188}
414d9d7f
MN
1189
1190AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
1191{
1192 return hwaccel ? hwaccel->next : first_hwaccel;
1193}
6059f13c
MN
1194
1195AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt)
1196{
1197 AVHWAccel *hwaccel=NULL;
1198
1199 while((hwaccel= av_hwaccel_next(hwaccel))){
1200 if ( hwaccel->id == codec_id
1201 && hwaccel->pix_fmt == pix_fmt)
1202 return hwaccel;
1203 }
1204 return NULL;
1205}