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[libav.git] / libavcodec / utils.c
CommitLineData
de6d9b64
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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 *
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6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
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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
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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/**
ba87f080 24 * @file
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25 * utils.
26 */
115329f1 27
7fb94406 28#include "libavutil/avstring.h"
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29#include "libavutil/integer.h"
30#include "libavutil/crc.h"
eb285cfe 31#include "libavutil/pixdesc.h"
63e8d976 32#include "libavcore/audioconvert.h"
05236ed7 33#include "libavcore/imgutils.h"
ed5d30d9 34#include "libavcore/internal.h"
ba7d6e79 35#include "libavcore/samplefmt.h"
de6d9b64 36#include "avcodec.h"
3123dd79 37#include "dsputil.h"
6ed04040 38#include "libavutil/opt.h"
db7ae7d1 39#include "imgconvert.h"
9e82a113 40#include "audioconvert.h"
0ba39dd1 41#include "internal.h"
7246177d 42#include <stdlib.h>
9b879566 43#include <stdarg.h>
4c263142 44#include <limits.h>
860a40c8 45#include <float.h>
de6d9b64 46
ddebfb15 47static int volatile entangled_thread_counter=0;
bb875b75 48static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
f988ce6c 49static void *codec_mutex;
ddebfb15 50
372c3f82 51void *av_fast_realloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
8e1e6f31 52{
115329f1 53 if(min_size < *size)
8e1e6f31 54 return ptr;
115329f1 55
372c3f82 56 min_size= FFMAX(17*min_size/16 + 32, min_size);
8e1e6f31 57
372c3f82 58 ptr= av_realloc(ptr, min_size);
978805b2 59 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
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60 min_size= 0;
61
62 *size= min_size;
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63
64 return ptr;
8e1e6f31
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65}
66
372c3f82 67void av_fast_malloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
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68{
69 void **p = ptr;
70 if (min_size < *size)
71 return;
372c3f82 72 min_size= FFMAX(17*min_size/16 + 32, min_size);
238ef6da 73 av_free(*p);
372c3f82
MN
74 *p = av_malloc(min_size);
75 if (!*p) min_size = 0;
76 *size= min_size;
238ef6da
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77}
78
de6d9b64 79/* encoder management */
e6df765e 80static AVCodec *first_avcodec = NULL;
de6d9b64 81
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82AVCodec *av_codec_next(AVCodec *c){
83 if(c) return c->next;
84 else return first_avcodec;
85}
86
85662f49 87void avcodec_register(AVCodec *codec)
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88{
89 AVCodec **p;
7a961a46 90 avcodec_init();
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91 p = &first_avcodec;
92 while (*p != NULL) p = &(*p)->next;
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93 *p = codec;
94 codec->next = NULL;
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95}
96
9d385cfe 97#if LIBAVCODEC_VERSION_MAJOR < 53
85662f49
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98void register_avcodec(AVCodec *codec)
99{
100 avcodec_register(codec);
101}
9d385cfe 102#endif
85662f49 103
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104unsigned avcodec_get_edge_width(void)
105{
106 return EDGE_WIDTH;
107}
108
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109void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
110 s->coded_width = width;
111 s->coded_height= height;
112 s->width = -((-width )>>s->lowres);
113 s->height= -((-height)>>s->lowres);
114}
115
d90cf87b 116typedef struct InternalBuffer{
1e491e29 117 int last_pic_num;
d90cf87b 118 uint8_t *base[4];
1e491e29 119 uint8_t *data[4];
237e4938 120 int linesize[4];
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121 int width, height;
122 enum PixelFormat pix_fmt;
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123}InternalBuffer;
124
125#define INTERNAL_BUFFER_SIZE 32
1e491e29 126
eb285cfe 127void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]){
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128 int w_align= 1;
129 int h_align= 1;
130
f0bbfc4a
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131 switch(s->pix_fmt){
132 case PIX_FMT_YUV420P:
71e445fc 133 case PIX_FMT_YUYV422:
ebb177dd 134 case PIX_FMT_UYVY422:
f0bbfc4a 135 case PIX_FMT_YUV422P:
98c82d69 136 case PIX_FMT_YUV440P:
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137 case PIX_FMT_YUV444P:
138 case PIX_FMT_GRAY8:
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139 case PIX_FMT_GRAY16BE:
140 case PIX_FMT_GRAY16LE:
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141 case PIX_FMT_YUVJ420P:
142 case PIX_FMT_YUVJ422P:
98c82d69 143 case PIX_FMT_YUVJ440P:
f0bbfc4a 144 case PIX_FMT_YUVJ444P:
b70335a2 145 case PIX_FMT_YUVA420P:
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146 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
147 h_align= 16;
00d1e96b 148 if(s->codec_id == CODEC_ID_MPEG2VIDEO || s->codec_id == CODEC_ID_MJPEG || s->codec_id == CODEC_ID_AMV || s->codec_id == CODEC_ID_THP || s->codec_id == CODEC_ID_H264)
c81185a1 149 h_align= 32; // interlaced is rounded up to 2 MBs
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150 break;
151 case PIX_FMT_YUV411P:
71e445fc 152 case PIX_FMT_UYYVYY411:
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153 w_align=32;
154 h_align=8;
155 break;
156 case PIX_FMT_YUV410P:
157 if(s->codec_id == CODEC_ID_SVQ1){
158 w_align=64;
159 h_align=64;
160 }
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161 case PIX_FMT_RGB555:
162 if(s->codec_id == CODEC_ID_RPZA){
163 w_align=4;
164 h_align=4;
165 }
166 case PIX_FMT_PAL8:
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167 case PIX_FMT_BGR8:
168 case PIX_FMT_RGB8:
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169 if(s->codec_id == CODEC_ID_SMC){
170 w_align=4;
171 h_align=4;
172 }
f0bbfc4a 173 break;
c31b8121
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174 case PIX_FMT_BGR24:
175 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
176 w_align=4;
177 h_align=4;
178 }
179 break;
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180 default:
181 w_align= 1;
182 h_align= 1;
183 break;
184 }
185
ef516f73
DC
186 *width = FFALIGN(*width , w_align);
187 *height= FFALIGN(*height, h_align);
ba68d9d3 188 if(s->codec_id == CODEC_ID_H264 || s->lowres)
ae4ffe9f 189 *height+=2; // some of the optimized chroma MC reads one line too much
ba68d9d3 190 // which is also done in mpeg decoders with lowres > 0
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RD
191
192 linesize_align[0] =
193 linesize_align[1] =
194 linesize_align[2] =
195 linesize_align[3] = STRIDE_ALIGN;
196//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
197//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
198//picture size unneccessarily in some cases. The solution here is not
199//pretty and better ideas are welcome!
200#if HAVE_MMX
201 if(s->codec_id == CODEC_ID_SVQ1 || s->codec_id == CODEC_ID_VP5 ||
202 s->codec_id == CODEC_ID_VP6 || s->codec_id == CODEC_ID_VP6F ||
203 s->codec_id == CODEC_ID_VP6A) {
204 linesize_align[0] =
205 linesize_align[1] =
206 linesize_align[2] = 16;
207 }
208#endif
209}
210
211void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
212 int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
213 int linesize_align[4];
214 int align;
215 avcodec_align_dimensions2(s, width, height, linesize_align);
216 align = FFMAX(linesize_align[0], linesize_align[3]);
217 linesize_align[1] <<= chroma_shift;
218 linesize_align[2] <<= chroma_shift;
219 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
220 *width=FFALIGN(*width, align);
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221}
222
bf176f58 223#if LIBAVCODEC_VERSION_MAJOR < 53
0ecca7a4 224int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
e16f217c 225 return av_image_check_size(w, h, 0, av_log_ctx);
0ecca7a4 226}
bf176f58 227#endif
0ecca7a4 228
492cd3a9 229int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 230 int i;
f0bbfc4a
MN
231 int w= s->width;
232 int h= s->height;
d90cf87b 233 InternalBuffer *buf;
237e4938 234 int *picture_number;
0ecca7a4 235
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236 if(pic->data[0]!=NULL) {
237 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
238 return -1;
239 }
240 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
241 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
242 return -1;
243 }
1e491e29 244
e16f217c 245 if(av_image_check_size(w, h, 0, s))
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MN
246 return -1;
247
d90cf87b 248 if(s->internal_buffer==NULL){
6ebc89ac 249 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
d90cf87b
MN
250 }
251#if 0
252 s->internal_buffer= av_fast_realloc(
115329f1
DB
253 s->internal_buffer,
254 &s->internal_buffer_size,
d90cf87b
MN
255 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
256 );
257#endif
115329f1 258
d90cf87b 259 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
6ebc89ac 260 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
237e4938 261 (*picture_number)++;
115329f1 262
0701006e
MN
263 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
264 for(i=0; i<4; i++){
265 av_freep(&buf->base[i]);
266 buf->data[i]= NULL;
267 }
268 }
269
d90cf87b 270 if(buf->base[0]){
237e4938
MN
271 pic->age= *picture_number - buf->last_pic_num;
272 buf->last_pic_num= *picture_number;
1e491e29 273 }else{
f0bbfc4a 274 int h_chroma_shift, v_chroma_shift;
db7ae7d1
VS
275 int size[4] = {0};
276 int tmpsize;
c9d6e847 277 int unaligned;
c7622f9a 278 AVPicture picture;
503bc402 279 int stride_align[4];
c7622f9a 280
1e491e29 281 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
f0bbfc4a 282
eb285cfe 283 avcodec_align_dimensions2(s, &w, &h, stride_align);
115329f1 284
1e491e29
MN
285 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
286 w+= EDGE_WIDTH*2;
287 h+= EDGE_WIDTH*2;
288 }
5b67307a 289
c9d6e847
RD
290 do {
291 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
292 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
9d2e0ad8 293 av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
c9d6e847
RD
294 // increase alignment of w for next try (rhs gives the lowest bit set in w)
295 w += w & ~(w-1);
db7ae7d1 296
c9d6e847 297 unaligned = 0;
45bae968 298 for (i=0; i<4; i++){
c9d6e847 299 unaligned |= picture.linesize[i] % stride_align[i];
45bae968 300 }
c9d6e847 301 } while (unaligned);
db7ae7d1 302
9d2e0ad8 303 tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
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RD
304 if (tmpsize < 0)
305 return -1;
db7ae7d1
VS
306
307 for (i=0; i<3 && picture.data[i+1]; i++)
308 size[i] = picture.data[i+1] - picture.data[i];
cf73e32a 309 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
c7622f9a 310
d90cf87b 311 buf->last_pic_num= -256*256*256*64;
c7622f9a
MN
312 memset(buf->base, 0, sizeof(buf->base));
313 memset(buf->data, 0, sizeof(buf->data));
1e491e29 314
b70335a2 315 for(i=0; i<4 && size[i]; i++){
2c19981a
MN
316 const int h_shift= i==0 ? 0 : h_chroma_shift;
317 const int v_shift= i==0 ? 0 : v_chroma_shift;
1e491e29 318
c7622f9a 319 buf->linesize[i]= picture.linesize[i];
1e491e29 320
c7622f9a 321 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
d90cf87b 322 if(buf->base[i]==NULL) return -1;
c7622f9a
MN
323 memset(buf->base[i], 128, size[i]);
324
3491a9b2 325 // no edge if EDGE EMU or not planar YUV
6337178b 326 if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
d90cf87b 327 buf->data[i] = buf->base[i];
1e491e29 328 else
ef516f73 329 buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
1e491e29 330 }
6337178b 331 if(size[1] && !size[2])
ed5d30d9 332 ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
0701006e
MN
333 buf->width = s->width;
334 buf->height = s->height;
335 buf->pix_fmt= s->pix_fmt;
1e491e29
MN
336 pic->age= 256*256*256*64;
337 }
237e4938 338 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29 339
d90cf87b
MN
340 for(i=0; i<4; i++){
341 pic->base[i]= buf->base[i];
342 pic->data[i]= buf->data[i];
237e4938 343 pic->linesize[i]= buf->linesize[i];
d90cf87b
MN
344 }
345 s->internal_buffer_count++;
346
393cbb96
MN
347 if(s->pkt) pic->pkt_pts= s->pkt->pts;
348 else pic->pkt_pts= AV_NOPTS_VALUE;
79de84f2
MN
349 pic->reordered_opaque= s->reordered_opaque;
350
385c820b
AS
351 if(s->debug&FF_DEBUG_BUFFERS)
352 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
353
1e491e29
MN
354 return 0;
355}
356
492cd3a9 357void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 358 int i;
6829ac8d 359 InternalBuffer *buf, *last;
d90cf87b 360
4e00e76b 361 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
59c673d5 362 assert(s->internal_buffer_count);
d90cf87b 363
b1609412 364 buf = NULL; /* avoids warning */
d90cf87b
MN
365 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
366 buf= &((InternalBuffer*)s->internal_buffer)[i];
367 if(buf->data[0] == pic->data[0])
368 break;
369 }
370 assert(i < s->internal_buffer_count);
371 s->internal_buffer_count--;
372 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
373
6829ac8d 374 FFSWAP(InternalBuffer, *buf, *last);
d90cf87b 375
b70335a2 376 for(i=0; i<4; i++){
1e491e29 377 pic->data[i]=NULL;
d90cf87b
MN
378// pic->base[i]=NULL;
379 }
1e491e29 380//printf("R%X\n", pic->opaque);
385c820b
AS
381
382 if(s->debug&FF_DEBUG_BUFFERS)
383 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
1e491e29
MN
384}
385
e1c2a5a0
RT
386int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
387 AVFrame temp_pic;
388 int i;
389
390 /* If no picture return a new buffer */
391 if(pic->data[0] == NULL) {
392 /* We will copy from buffer, so must be readable */
393 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
394 return s->get_buffer(s, pic);
395 }
396
397 /* If internal buffer type return the same buffer */
b8af4fe9 398 if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
62ecd363
NG
399 if(s->pkt) pic->pkt_pts= s->pkt->pts;
400 else pic->pkt_pts= AV_NOPTS_VALUE;
b8af4fe9 401 pic->reordered_opaque= s->reordered_opaque;
e1c2a5a0 402 return 0;
b8af4fe9 403 }
e1c2a5a0
RT
404
405 /*
406 * Not internal type and reget_buffer not overridden, emulate cr buffer
407 */
408 temp_pic = *pic;
409 for(i = 0; i < 4; i++)
410 pic->data[i] = pic->base[i] = NULL;
411 pic->opaque = NULL;
412 /* Allocate new frame */
413 if (s->get_buffer(s, pic))
414 return -1;
415 /* Copy image data from old buffer to new buffer */
636d6a4a 416 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
e1c2a5a0
RT
417 s->height);
418 s->release_buffer(s, &temp_pic); // Release old frame
419 return 0;
420}
421
3a84713a 422int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
9c3d33d6
MN
423 int i;
424
425 for(i=0; i<count; i++){
3a84713a 426 int r= func(c, (char*)arg + i*size);
9c3d33d6
MN
427 if(ret) ret[i]= r;
428 }
429 return 0;
430}
431
8d23a86f
RD
432int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
433 int i;
434
435 for(i=0; i<count; i++){
436 int r= func(c, arg, i, 0);
437 if(ret) ret[i]= r;
438 }
439 return 0;
440}
441
c269cf68
MN
442enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
443 while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
444 ++fmt;
a33c7159
MN
445 return fmt[0];
446}
447
9740beff
MN
448void avcodec_get_frame_defaults(AVFrame *pic){
449 memset(pic, 0, sizeof(AVFrame));
450
451 pic->pts= AV_NOPTS_VALUE;
c342499d 452 pic->key_frame= 1;
9740beff
MN
453}
454
492cd3a9 455AVFrame *avcodec_alloc_frame(void){
9740beff 456 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 457
9740beff 458 if(pic==NULL) return NULL;
115329f1 459
9740beff 460 avcodec_get_frame_defaults(pic);
115329f1 461
1e491e29
MN
462 return pic;
463}
464
5e4c7ca2 465int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
de6d9b64 466{
ddebfb15 467 int ret= -1;
115329f1 468
f988ce6c
469 /* If there is a user-supplied mutex locking routine, call it. */
470 if (ff_lockmgr_cb) {
471 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
472 return -1;
473 }
474
ddebfb15
MN
475 entangled_thread_counter++;
476 if(entangled_thread_counter != 1){
477 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
478 goto end;
479 }
de6d9b64 480
9c87b8f7 481 if(avctx->codec || !codec)
ddebfb15 482 goto end;
09770af8 483
0edf8a7a 484 if (codec->priv_data_size > 0) {
dc51a72b 485 if(!avctx->priv_data){
0edf8a7a 486 avctx->priv_data = av_mallocz(codec->priv_data_size);
90f06cea
PI
487 if (!avctx->priv_data) {
488 ret = AVERROR(ENOMEM);
ddebfb15 489 goto end;
90f06cea 490 }
dc51a72b
MN
491 if(codec->priv_class){ //this can be droped once all user apps use avcodec_get_context_defaults3()
492 *(AVClass**)avctx->priv_data= codec->priv_class;
493 av_opt_set_defaults(avctx->priv_data);
494 }
495 }
0edf8a7a
PG
496 } else {
497 avctx->priv_data = NULL;
498 }
21adafec
MN
499
500 if(avctx->coded_width && avctx->coded_height)
501 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
502 else if(avctx->width && avctx->height)
503 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
504
82eac2f3
RD
505 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
506 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
507 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
508 av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
509 avcodec_set_dimensions(avctx, 0, 0);
510 }
511
f19c58b4
AJ
512 /* if the decoder init function was already called previously,
513 free the already allocated subtitle_header before overwriting it */
514 if (codec->decode)
515 av_freep(&avctx->subtitle_header);
516
fa77dd63 517#define SANE_NB_CHANNELS 128U
82eac2f3 518 if (avctx->channels > SANE_NB_CHANNELS) {
7868349a 519 ret = AVERROR(EINVAL);
2a9b5c9b 520 goto free_and_end;
0ecca7a4
MN
521 }
522
b5c85991 523 avctx->codec = codec;
72415b2a 524 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
681c180d
RD
525 avctx->codec_id == CODEC_ID_NONE) {
526 avctx->codec_type = codec->type;
527 avctx->codec_id = codec->id;
528 }
e83c716e
AJ
529 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
530 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
4c0dda2b 531 av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
2a9b5c9b 532 goto free_and_end;
4c0dda2b 533 }
b5c85991 534 avctx->frame_number = 0;
527c91e3
CEH
535 if (avctx->codec->max_lowres < avctx->lowres) {
536 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
537 avctx->codec->max_lowres);
538 goto free_and_end;
539 }
0fd0ef79 540
527c91e3 541 if(avctx->codec->init){
2de4f9eb
MN
542 ret = avctx->codec->init(avctx);
543 if (ret < 0) {
2a9b5c9b 544 goto free_and_end;
2de4f9eb 545 }
6e546aaa 546 }
ddebfb15
MN
547 ret=0;
548end:
549 entangled_thread_counter--;
f988ce6c
550
551 /* Release any user-supplied mutex. */
552 if (ff_lockmgr_cb) {
553 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
554 }
ddebfb15 555 return ret;
2a9b5c9b
MN
556free_and_end:
557 av_freep(&avctx->priv_data);
558 avctx->codec= NULL;
559 goto end;
de6d9b64
FB
560}
561
5e4c7ca2 562int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64
FB
563 const short *samples)
564{
0ecca7a4 565 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
5286d11f 566 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
567 return -1;
568 }
6f824977 569 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
8eb027c8 570 int ret = avctx->codec->encode(avctx, buf, buf_size, samples);
6f824977
MN
571 avctx->frame_number++;
572 return ret;
573 }else
574 return 0;
de6d9b64
FB
575}
576
5e4c7ca2 577int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 578 const AVFrame *pict)
de6d9b64 579{
0ecca7a4 580 if(buf_size < FF_MIN_BUFFER_SIZE){
5286d11f 581 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
582 return -1;
583 }
e16f217c 584 if(av_image_check_size(avctx->width, avctx->height, 0, avctx))
0ecca7a4 585 return -1;
6f824977 586 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
8eb027c8 587 int ret = avctx->codec->encode(avctx, buf, buf_size, pict);
6f824977 588 avctx->frame_number++;
bb628dae 589 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 590
6f824977
MN
591 return ret;
592 }else
593 return 0;
de6d9b64
FB
594}
595
115329f1 596int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
597 const AVSubtitle *sub)
598{
599 int ret;
9413db9e
BA
600 if(sub->start_display_time) {
601 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
602 return -1;
603 }
505aa6c9
BA
604 if(sub->num_rects == 0 || !sub->rects)
605 return -1;
8eb027c8 606 ret = avctx->codec->encode(avctx, buf, buf_size, sub);
240c1657
FB
607 avctx->frame_number++;
608 return ret;
609}
610
164bc38c 611#if FF_API_VIDEO_OLD
5e4c7ca2 612int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 613 int *got_picture_ptr,
2efa7fd1 614 const uint8_t *buf, int buf_size)
de6d9b64 615{
7a00bbad
TB
616 AVPacket avpkt;
617 av_init_packet(&avpkt);
618 avpkt.data = buf;
619 avpkt.size = buf_size;
10f9ff9b
RD
620 // HACK for CorePNG to decode as normal PNG by default
621 avpkt.flags = AV_PKT_FLAG_KEY;
7a00bbad
TB
622
623 return avcodec_decode_video2(avctx, picture, got_picture_ptr, &avpkt);
624}
625#endif
626
627int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
628 int *got_picture_ptr,
629 AVPacket *avpkt)
630{
de6d9b64 631 int ret;
115329f1 632
53db1cae 633 *got_picture_ptr= 0;
e16f217c 634 if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
0ecca7a4 635 return -1;
393cbb96
MN
636
637 avctx->pkt = avpkt;
638
7a00bbad 639 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
115329f1 640 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
7a00bbad 641 avpkt);
6bb925f4 642
bb628dae 643 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 644
1919feaf
MN
645 picture->pkt_dts= avpkt->dts;
646
115329f1 647 if (*got_picture_ptr)
934982c4
MN
648 avctx->frame_number++;
649 }else
650 ret= 0;
651
de6d9b64
FB
652 return ret;
653}
654
a377cfa6 655#if FF_API_AUDIO_OLD
5e4c7ca2 656int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
de6d9b64 657 int *frame_size_ptr,
2efa7fd1 658 const uint8_t *buf, int buf_size)
de6d9b64 659{
7a00bbad
TB
660 AVPacket avpkt;
661 av_init_packet(&avpkt);
662 avpkt.data = buf;
663 avpkt.size = buf_size;
664
665 return avcodec_decode_audio3(avctx, samples, frame_size_ptr, &avpkt);
666}
667#endif
668
669int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
670 int *frame_size_ptr,
671 AVPacket *avpkt)
672{
de6d9b64
FB
673 int ret;
674
393cbb96
MN
675 avctx->pkt = avpkt;
676
7a00bbad 677 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
9c856d62
MN
678 //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
679 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
680 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
681 return -1;
682 }
683 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
81fc2f37 684 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
9c856d62
MN
685 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
686 return -1;
687 }
688
7a00bbad 689 ret = avctx->codec->decode(avctx, samples, frame_size_ptr, avpkt);
fec9ccb7 690 avctx->frame_number++;
ac66834c 691 }else{
fec9ccb7 692 ret= 0;
ac66834c
MN
693 *frame_size_ptr=0;
694 }
de6d9b64
FB
695 return ret;
696}
697
448ce925 698#if FF_API_SUBTITLE_OLD
240c1657
FB
699int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
700 int *got_sub_ptr,
701 const uint8_t *buf, int buf_size)
702{
7a00bbad
TB
703 AVPacket avpkt;
704 av_init_packet(&avpkt);
705 avpkt.data = buf;
706 avpkt.size = buf_size;
707
708 return avcodec_decode_subtitle2(avctx, sub, got_sub_ptr, &avpkt);
709}
710#endif
711
712int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
713 int *got_sub_ptr,
714 AVPacket *avpkt)
715{
240c1657
FB
716 int ret;
717
393cbb96 718 avctx->pkt = avpkt;
240c1657 719 *got_sub_ptr = 0;
7a00bbad 720 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
240c1657
FB
721 if (*got_sub_ptr)
722 avctx->frame_number++;
723 return ret;
724}
725
e1d7c883
RD
726void avsubtitle_free(AVSubtitle *sub)
727{
728 int i;
729
730 for (i = 0; i < sub->num_rects; i++)
731 {
8b834ac5
RD
732 av_freep(&sub->rects[i]->pict.data[0]);
733 av_freep(&sub->rects[i]->pict.data[1]);
734 av_freep(&sub->rects[i]->pict.data[2]);
735 av_freep(&sub->rects[i]->pict.data[3]);
736 av_freep(&sub->rects[i]->text);
737 av_freep(&sub->rects[i]->ass);
738 av_freep(&sub->rects[i]);
e1d7c883
RD
739 }
740
8b834ac5 741 av_freep(&sub->rects);
e1d7c883
RD
742
743 memset(sub, 0, sizeof(AVSubtitle));
744}
745
0752cd39 746av_cold int avcodec_close(AVCodecContext *avctx)
de6d9b64 747{
f988ce6c
748 /* If there is a user-supplied mutex locking routine, call it. */
749 if (ff_lockmgr_cb) {
750 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
751 return -1;
752 }
753
ddebfb15
MN
754 entangled_thread_counter++;
755 if(entangled_thread_counter != 1){
756 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
757 entangled_thread_counter--;
758 return -1;
759 }
760
49fb20cb 761 if (HAVE_THREADS && avctx->thread_opaque)
ab2cfc59 762 avcodec_thread_free(avctx);
dccda293 763 if (avctx->codec && avctx->codec->close)
de6d9b64 764 avctx->codec->close(avctx);
eea8c08f 765 avcodec_default_free_buffers(avctx);
b3ab3199 766 avctx->coded_frame = NULL;
3123dd79 767 av_freep(&avctx->priv_data);
77a670e7 768 if(avctx->codec && avctx->codec->encode)
c4f267ab 769 av_freep(&avctx->extradata);
de6d9b64 770 avctx->codec = NULL;
ddebfb15 771 entangled_thread_counter--;
f988ce6c
772
773 /* Release any user-supplied mutex. */
774 if (ff_lockmgr_cb) {
775 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
776 }
de6d9b64
FB
777 return 0;
778}
779
780AVCodec *avcodec_find_encoder(enum CodecID id)
781{
93ebfeea 782 AVCodec *p, *experimental=NULL;
de6d9b64
FB
783 p = first_avcodec;
784 while (p) {
93ebfeea
JG
785 if (p->encode != NULL && p->id == id) {
786 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
787 experimental = p;
788 } else
789 return p;
790 }
de6d9b64
FB
791 p = p->next;
792 }
93ebfeea 793 return experimental;
de6d9b64
FB
794}
795
98f3b098
A
796AVCodec *avcodec_find_encoder_by_name(const char *name)
797{
798 AVCodec *p;
fc228c90
AJ
799 if (!name)
800 return NULL;
98f3b098
A
801 p = first_avcodec;
802 while (p) {
803 if (p->encode != NULL && strcmp(name,p->name) == 0)
804 return p;
805 p = p->next;
806 }
807 return NULL;
808}
809
de6d9b64
FB
810AVCodec *avcodec_find_decoder(enum CodecID id)
811{
812 AVCodec *p;
813 p = first_avcodec;
814 while (p) {
815 if (p->decode != NULL && p->id == id)
816 return p;
817 p = p->next;
818 }
819 return NULL;
820}
821
822AVCodec *avcodec_find_decoder_by_name(const char *name)
823{
824 AVCodec *p;
fc228c90
AJ
825 if (!name)
826 return NULL;
de6d9b64
FB
827 p = first_avcodec;
828 while (p) {
829 if (p->decode != NULL && strcmp(name,p->name) == 0)
830 return p;
831 p = p->next;
832 }
833 return NULL;
834}
835
406aa93f 836static int get_bit_rate(AVCodecContext *ctx)
ce34ff6b
RK
837{
838 int bit_rate;
839 int bits_per_sample;
840
841 switch(ctx->codec_type) {
72415b2a 842 case AVMEDIA_TYPE_VIDEO:
4563cf24
SS
843 case AVMEDIA_TYPE_DATA:
844 case AVMEDIA_TYPE_SUBTITLE:
845 case AVMEDIA_TYPE_ATTACHMENT:
ce34ff6b
RK
846 bit_rate = ctx->bit_rate;
847 break;
72415b2a 848 case AVMEDIA_TYPE_AUDIO:
ce34ff6b
RK
849 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
850 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
851 break;
ce34ff6b
RK
852 default:
853 bit_rate = 0;
854 break;
855 }
856 return bit_rate;
857}
858
7e566bbe
SS
859size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
860{
861 int i, len, ret = 0;
862
863 for (i = 0; i < 4; i++) {
864 len = snprintf(buf, buf_size,
865 isprint(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
866 buf += len;
867 buf_size = buf_size > len ? buf_size - len : 0;
868 ret += len;
869 codec_tag>>=8;
870 }
871 return ret;
872}
873
de6d9b64
FB
874void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
875{
876 const char *codec_name;
2a81f4bd 877 const char *profile = NULL;
de6d9b64
FB
878 AVCodec *p;
879 char buf1[32];
a96b68b7 880 int bitrate;
59771f71 881 AVRational display_aspect_ratio;
de6d9b64
FB
882
883 if (encode)
884 p = avcodec_find_encoder(enc->codec_id);
885 else
886 p = avcodec_find_decoder(enc->codec_id);
887
888 if (p) {
889 codec_name = p->name;
2a81f4bd 890 profile = av_get_profile_name(p, enc->profile);
985180a1
FB
891 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
892 /* fake mpeg2 transport stream codec (currently not
893 registered) */
894 codec_name = "mpeg2ts";
de6d9b64
FB
895 } else if (enc->codec_name[0] != '\0') {
896 codec_name = enc->codec_name;
897 } else {
898 /* output avi tags */
ab0b5378
SS
899 char tag_buf[32];
900 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
901 snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag);
de6d9b64
FB
902 codec_name = buf1;
903 }
904
905 switch(enc->codec_type) {
72415b2a 906 case AVMEDIA_TYPE_VIDEO:
de6d9b64
FB
907 snprintf(buf, buf_size,
908 "Video: %s%s",
7d1c3fc1 909 codec_name, enc->mb_decision ? " (hq)" : "");
2a81f4bd
AH
910 if (profile)
911 snprintf(buf + strlen(buf), buf_size - strlen(buf),
912 " (%s)", profile);
82c0c4ba 913 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
914 snprintf(buf + strlen(buf), buf_size - strlen(buf),
915 ", %s",
9bbffbb1 916 avcodec_get_pix_fmt_name(enc->pix_fmt));
cf087595 917 }
de6d9b64
FB
918 if (enc->width) {
919 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
920 ", %dx%d",
921 enc->width, enc->height);
7ee4dd02 922 if (enc->sample_aspect_ratio.num) {
cbaf50f8
BC
923 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
924 enc->width*enc->sample_aspect_ratio.num,
925 enc->height*enc->sample_aspect_ratio.den,
926 1024*1024);
927 snprintf(buf + strlen(buf), buf_size - strlen(buf),
928 " [PAR %d:%d DAR %d:%d]",
929 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
930 display_aspect_ratio.num, display_aspect_ratio.den);
7ee4dd02 931 }
a309073b 932 if(av_log_get_level() >= AV_LOG_DEBUG){
9ce6c138 933 int g= av_gcd(enc->time_base.num, enc->time_base.den);
21189011
MN
934 snprintf(buf + strlen(buf), buf_size - strlen(buf),
935 ", %d/%d",
936 enc->time_base.num/g, enc->time_base.den/g);
937 }
de6d9b64 938 }
4bfad535
FB
939 if (encode) {
940 snprintf(buf + strlen(buf), buf_size - strlen(buf),
941 ", q=%d-%d", enc->qmin, enc->qmax);
942 }
de6d9b64 943 break;
72415b2a 944 case AVMEDIA_TYPE_AUDIO:
de6d9b64
FB
945 snprintf(buf, buf_size,
946 "Audio: %s",
947 codec_name);
2a81f4bd
AH
948 if (profile)
949 snprintf(buf + strlen(buf), buf_size - strlen(buf),
950 " (%s)", profile);
de6d9b64
FB
951 if (enc->sample_rate) {
952 snprintf(buf + strlen(buf), buf_size - strlen(buf),
0d72e7d0 953 ", %d Hz", enc->sample_rate);
de6d9b64 954 }
0d72e7d0 955 av_strlcat(buf, ", ", buf_size);
63e8d976 956 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
5d6e4c16 957 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
9e82a113 958 snprintf(buf + strlen(buf), buf_size - strlen(buf),
ba7d6e79 959 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
9e82a113 960 }
de6d9b64 961 break;
72415b2a 962 case AVMEDIA_TYPE_DATA:
985180a1 963 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657 964 break;
72415b2a 965 case AVMEDIA_TYPE_SUBTITLE:
240c1657 966 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1 967 break;
72415b2a 968 case AVMEDIA_TYPE_ATTACHMENT:
f8d7c9d3 969 snprintf(buf, buf_size, "Attachment: %s", codec_name);
f8d7c9d3 970 break;
de6d9b64 971 default:
9fe5a7b8
MN
972 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
973 return;
de6d9b64 974 }
4bfad535
FB
975 if (encode) {
976 if (enc->flags & CODEC_FLAG_PASS1)
977 snprintf(buf + strlen(buf), buf_size - strlen(buf),
978 ", pass 1");
979 if (enc->flags & CODEC_FLAG_PASS2)
980 snprintf(buf + strlen(buf), buf_size - strlen(buf),
981 ", pass 2");
982 }
406aa93f 983 bitrate = get_bit_rate(enc);
a96b68b7 984 if (bitrate != 0) {
115329f1 985 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 986 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
987 }
988}
989
060ec0a8
AH
990const char *av_get_profile_name(const AVCodec *codec, int profile)
991{
992 const AVProfile *p;
993 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
994 return NULL;
995
996 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
997 if (p->profile == profile)
998 return p->name;
999
1000 return NULL;
1001}
1002
156e5023
NK
1003unsigned avcodec_version( void )
1004{
1005 return LIBAVCODEC_VERSION_INT;
1006}
cf087595 1007
41600690 1008const char *avcodec_configuration(void)
c1736936
DB
1009{
1010 return FFMPEG_CONFIGURATION;
1011}
1012
41600690 1013const char *avcodec_license(void)
c1736936
DB
1014{
1015#define LICENSE_PREFIX "libavcodec license: "
1016 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1017}
1018
de6d9b64
FB
1019void avcodec_init(void)
1020{
5e534865 1021 static int initialized = 0;
0344cd0a 1022
5e534865 1023 if (initialized != 0)
bb270c08 1024 return;
5e534865 1025 initialized = 1;
0344cd0a 1026
486497e0 1027 dsputil_static_init();
de6d9b64
FB
1028}
1029
1c2a8c7f
MN
1030void avcodec_flush_buffers(AVCodecContext *avctx)
1031{
7a06ff14
MN
1032 if(avctx->codec->flush)
1033 avctx->codec->flush(avctx);
1c2a8c7f
MN
1034}
1035
b100eab8 1036void avcodec_default_free_buffers(AVCodecContext *s){
d90cf87b
MN
1037 int i, j;
1038
1039 if(s->internal_buffer==NULL) return;
115329f1 1040
ea09f691
RD
1041 if (s->internal_buffer_count)
1042 av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n", s->internal_buffer_count);
d90cf87b
MN
1043 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1044 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1045 for(j=0; j<4; j++){
1046 av_freep(&buf->base[j]);
1047 buf->data[j]= NULL;
1048 }
1049 }
1050 av_freep(&s->internal_buffer);
115329f1 1051
d90cf87b
MN
1052 s->internal_buffer_count=0;
1053}
1054
d8085ea7
MN
1055char av_get_pict_type_char(int pict_type){
1056 switch(pict_type){
fbd4293d
AJ
1057 case FF_I_TYPE: return 'I';
1058 case FF_P_TYPE: return 'P';
1059 case FF_B_TYPE: return 'B';
1060 case FF_S_TYPE: return 'S';
1061 case FF_SI_TYPE:return 'i';
1062 case FF_SP_TYPE:return 'p';
48d533e6 1063 case FF_BI_TYPE:return 'b';
c06ccb13 1064 default: return '?';
d8085ea7
MN
1065 }
1066}
1067
ac3e1834
BC
1068int av_get_bits_per_sample(enum CodecID codec_id){
1069 switch(codec_id){
5da71469 1070 case CODEC_ID_ADPCM_SBPRO_2:
f1b163e0 1071 return 2;
5da71469 1072 case CODEC_ID_ADPCM_SBPRO_3:
f1b163e0 1073 return 3;
5da71469 1074 case CODEC_ID_ADPCM_SBPRO_4:
f1b163e0 1075 case CODEC_ID_ADPCM_CT:
07f2a575 1076 case CODEC_ID_ADPCM_IMA_WAV:
9df9b810
DV
1077 case CODEC_ID_ADPCM_MS:
1078 case CODEC_ID_ADPCM_YAMAHA:
f1b163e0 1079 return 4;
ac3e1834
BC
1080 case CODEC_ID_PCM_ALAW:
1081 case CODEC_ID_PCM_MULAW:
1082 case CODEC_ID_PCM_S8:
1083 case CODEC_ID_PCM_U8:
9d49b8ff 1084 case CODEC_ID_PCM_ZORK:
ac3e1834
BC
1085 return 8;
1086 case CODEC_ID_PCM_S16BE:
1087 case CODEC_ID_PCM_S16LE:
725d86bf 1088 case CODEC_ID_PCM_S16LE_PLANAR:
ac3e1834
BC
1089 case CODEC_ID_PCM_U16BE:
1090 case CODEC_ID_PCM_U16LE:
1091 return 16;
1092 case CODEC_ID_PCM_S24DAUD:
1093 case CODEC_ID_PCM_S24BE:
1094 case CODEC_ID_PCM_S24LE:
1095 case CODEC_ID_PCM_U24BE:
1096 case CODEC_ID_PCM_U24LE:
1097 return 24;
1098 case CODEC_ID_PCM_S32BE:
1099 case CODEC_ID_PCM_S32LE:
1100 case CODEC_ID_PCM_U32BE:
1101 case CODEC_ID_PCM_U32LE:
aa29709e 1102 case CODEC_ID_PCM_F32BE:
143a5d6f 1103 case CODEC_ID_PCM_F32LE:
ac3e1834 1104 return 32;
143a5d6f
PR
1105 case CODEC_ID_PCM_F64BE:
1106 case CODEC_ID_PCM_F64LE:
1107 return 64;
ac3e1834
BC
1108 default:
1109 return 0;
1110 }
1111}
1112
6f84cd12 1113#if FF_API_OLD_SAMPLE_FMT
5d6e4c16 1114int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt) {
6f84cd12 1115 return av_get_bits_per_sample_fmt(sample_fmt);
42c71907 1116}
6f84cd12 1117#endif
42c71907 1118
b250f9c6 1119#if !HAVE_THREADS
ca8ad847 1120int avcodec_thread_init(AVCodecContext *s, int thread_count){
2e418f5e 1121 s->thread_count = thread_count;
ca8ad847
MN
1122 return -1;
1123}
1124#endif
ad2b531d
MR
1125
1126unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1127{
1128 unsigned int n = 0;
1129
1130 while(v >= 0xff) {
1131 *s++ = 0xff;
1132 v -= 0xff;
1133 n++;
1134 }
1135 *s = v;
1136 n++;
1137 return n;
1138}
1005f542 1139
126b638e
SS
1140#if LIBAVCODEC_VERSION_MAJOR < 53
1141#include "libavcore/parseutils.h"
26ef3220
SS
1142
1143int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1144{
126b638e 1145 return av_parse_video_size(width_ptr, height_ptr, str);
26ef3220
SS
1146}
1147
1148int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1149{
126b638e 1150 return av_parse_video_rate(frame_rate, arg);
26ef3220 1151}
126b638e 1152#endif
ea779d91 1153
c46eeae2
MN
1154int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
1155 int i;
1156 for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
1157 return i;
1158}
1159
ce863d7f 1160void av_log_missing_feature(void *avc, const char *feature, int want_sample)
ea779d91
JR
1161{
1162 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
db323491 1163 "version to the newest one from Git. If the problem still "
ea779d91
JR
1164 "occurs, it means that your file has a feature which has not "
1165 "been implemented.", feature);
1166 if(want_sample)
ce863d7f 1167 av_log_ask_for_sample(avc, NULL);
0ba39dd1
KG
1168 else
1169 av_log(avc, AV_LOG_WARNING, "\n");
1170}
1171
ce863d7f 1172void av_log_ask_for_sample(void *avc, const char *msg)
0ba39dd1
KG
1173{
1174 if (msg)
1175 av_log(avc, AV_LOG_WARNING, "%s ", msg);
1176 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
1177 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
1178 "and contact the ffmpeg-devel mailing list.\n");
ea779d91 1179}
c895618b
MN
1180
1181static AVHWAccel *first_hwaccel = NULL;
1182
1183void av_register_hwaccel(AVHWAccel *hwaccel)
1184{
1185 AVHWAccel **p = &first_hwaccel;
1186 while (*p)
1187 p = &(*p)->next;
1188 *p = hwaccel;
1189 hwaccel->next = NULL;
1190}
414d9d7f
MN
1191
1192AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
1193{
1194 return hwaccel ? hwaccel->next : first_hwaccel;
1195}
6059f13c
MN
1196
1197AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt)
1198{
1199 AVHWAccel *hwaccel=NULL;
1200
1201 while((hwaccel= av_hwaccel_next(hwaccel))){
1202 if ( hwaccel->id == codec_id
1203 && hwaccel->pix_fmt == pix_fmt)
1204 return hwaccel;
1205 }
1206 return NULL;
1207}
f988ce6c
1208
1209int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1210{
1211 if (ff_lockmgr_cb) {
1212 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
1213 return -1;
1214 }
1215
1216 ff_lockmgr_cb = cb;
1217
1218 if (ff_lockmgr_cb) {
1219 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
1220 return -1;
1221 }
1222 return 0;
1223}
603a5f04
FL
1224
1225unsigned int ff_toupper4(unsigned int x)
1226{
1227 return toupper( x &0xFF)
1228 + (toupper((x>>8 )&0xFF)<<8 )
1229 + (toupper((x>>16)&0xFF)<<16)
1230 + (toupper((x>>24)&0xFF)<<24);
1231}