binkaudio: remove unneeded GET_BITS_SAFE macro
[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 *
2912e87a 6 * This file is part of Libav.
b78e7197 7 *
2912e87a 8 * Libav 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 *
2912e87a 13 * Libav 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
2912e87a 19 * License along with Libav; 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
983e3246
MN
25 * utils.
26 */
115329f1 27
b2c75b6e 28#include "libavutil/avassert.h"
7fb94406 29#include "libavutil/avstring.h"
245976da 30#include "libavutil/crc.h"
0ebcdf5c 31#include "libavutil/mathematics.h"
eb285cfe 32#include "libavutil/pixdesc.h"
737eb597
RT
33#include "libavutil/audioconvert.h"
34#include "libavutil/imgutils.h"
35#include "libavutil/samplefmt.h"
0b950fe2 36#include "libavutil/dict.h"
de6d9b64 37#include "avcodec.h"
3123dd79 38#include "dsputil.h"
6ed04040 39#include "libavutil/opt.h"
db7ae7d1 40#include "imgconvert.h"
37b00b47 41#include "thread.h"
9e82a113 42#include "audioconvert.h"
0ba39dd1 43#include "internal.h"
f13db94d 44#include "bytestream.h"
7246177d 45#include <stdlib.h>
9b879566 46#include <stdarg.h>
4c263142 47#include <limits.h>
860a40c8 48#include <float.h>
de6d9b64 49
ddebfb15 50static int volatile entangled_thread_counter=0;
bb875b75 51static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
f988ce6c 52static void *codec_mutex;
2d1b6fb7 53static void *avformat_mutex;
ddebfb15 54
3453a231 55void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
8e1e6f31 56{
115329f1 57 if(min_size < *size)
8e1e6f31 58 return ptr;
115329f1 59
372c3f82 60 min_size= FFMAX(17*min_size/16 + 32, min_size);
8e1e6f31 61
372c3f82 62 ptr= av_realloc(ptr, min_size);
978805b2 63 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
372c3f82
MN
64 min_size= 0;
65
66 *size= min_size;
978805b2
MN
67
68 return ptr;
8e1e6f31
FB
69}
70
3453a231 71void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
238ef6da
RD
72{
73 void **p = ptr;
74 if (min_size < *size)
75 return;
372c3f82 76 min_size= FFMAX(17*min_size/16 + 32, min_size);
238ef6da 77 av_free(*p);
372c3f82
MN
78 *p = av_malloc(min_size);
79 if (!*p) min_size = 0;
80 *size= min_size;
238ef6da
RD
81}
82
316fc744
JG
83void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
84{
85 void **p = ptr;
86 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
87 av_freep(p);
88 *size = 0;
89 return;
90 }
91 av_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
92 if (*size)
93 memset((uint8_t *)*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
94}
95
de6d9b64 96/* encoder management */
e6df765e 97static AVCodec *first_avcodec = NULL;
de6d9b64 98
0a0f19b5
AK
99AVCodec *av_codec_next(const AVCodec *c)
100{
55b9e69a
MN
101 if(c) return c->next;
102 else return first_avcodec;
103}
104
3211932c 105static void avcodec_init(void)
9ecfbb3e
AK
106{
107 static int initialized = 0;
108
109 if (initialized != 0)
110 return;
111 initialized = 1;
112
9cf0841e 113 ff_dsputil_static_init();
9ecfbb3e
AK
114}
115
0a0f19b5 116int av_codec_is_encoder(const AVCodec *codec)
b2c75b6e 117{
466b39ef 118 return codec && (codec->encode_sub || codec->encode2);
b2c75b6e
JR
119}
120
0a0f19b5 121int av_codec_is_decoder(const AVCodec *codec)
b2c75b6e
JR
122{
123 return codec && codec->decode;
124}
125
85662f49 126void avcodec_register(AVCodec *codec)
de6d9b64
FB
127{
128 AVCodec **p;
7a961a46 129 avcodec_init();
de6d9b64
FB
130 p = &first_avcodec;
131 while (*p != NULL) p = &(*p)->next;
335a761a
SS
132 *p = codec;
133 codec->next = NULL;
d97efd7f
AK
134
135 if (codec->init_static_data)
136 codec->init_static_data(codec);
de6d9b64
FB
137}
138
0fb49b59
BB
139unsigned avcodec_get_edge_width(void)
140{
141 return EDGE_WIDTH;
142}
143
21adafec
MN
144void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
145 s->coded_width = width;
146 s->coded_height= height;
2bcbd984
MR
147 s->width = width;
148 s->height = height;
21adafec
MN
149}
150
6a9c8594 151#define INTERNAL_BUFFER_SIZE (32+1)
1e491e29 152
560f773c
JR
153void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
154 int linesize_align[AV_NUM_DATA_POINTERS])
155{
156 int i;
115329f1
DB
157 int w_align= 1;
158 int h_align= 1;
159
f0bbfc4a
MN
160 switch(s->pix_fmt){
161 case PIX_FMT_YUV420P:
71e445fc 162 case PIX_FMT_YUYV422:
ebb177dd 163 case PIX_FMT_UYVY422:
f0bbfc4a 164 case PIX_FMT_YUV422P:
98c82d69 165 case PIX_FMT_YUV440P:
f0bbfc4a 166 case PIX_FMT_YUV444P:
db431f7e 167 case PIX_FMT_GBRP:
f0bbfc4a 168 case PIX_FMT_GRAY8:
34380af0
KS
169 case PIX_FMT_GRAY16BE:
170 case PIX_FMT_GRAY16LE:
f0bbfc4a
MN
171 case PIX_FMT_YUVJ420P:
172 case PIX_FMT_YUVJ422P:
98c82d69 173 case PIX_FMT_YUVJ440P:
f0bbfc4a 174 case PIX_FMT_YUVJ444P:
b70335a2 175 case PIX_FMT_YUVA420P:
42239ced
OA
176 case PIX_FMT_YUV420P9LE:
177 case PIX_FMT_YUV420P9BE:
178 case PIX_FMT_YUV420P10LE:
179 case PIX_FMT_YUV420P10BE:
dc49bf12
RB
180 case PIX_FMT_YUV422P9LE:
181 case PIX_FMT_YUV422P9BE:
5c511ad4
BC
182 case PIX_FMT_YUV422P10LE:
183 case PIX_FMT_YUV422P10BE:
da55ee6c
JGG
184 case PIX_FMT_YUV444P9LE:
185 case PIX_FMT_YUV444P9BE:
186 case PIX_FMT_YUV444P10LE:
187 case PIX_FMT_YUV444P10BE:
db431f7e
RB
188 case PIX_FMT_GBRP9LE:
189 case PIX_FMT_GBRP9BE:
190 case PIX_FMT_GBRP10LE:
191 case PIX_FMT_GBRP10BE:
37c0dc62
RC
192 w_align = 16; //FIXME assume 16 pixel per macroblock
193 h_align = 16 * 2; // interlaced needs 2 macroblocks height
f0bbfc4a
MN
194 break;
195 case PIX_FMT_YUV411P:
71e445fc 196 case PIX_FMT_UYYVYY411:
f0bbfc4a
MN
197 w_align=32;
198 h_align=8;
199 break;
200 case PIX_FMT_YUV410P:
36ef5369 201 if(s->codec_id == AV_CODEC_ID_SVQ1){
f0bbfc4a
MN
202 w_align=64;
203 h_align=64;
204 }
d99fbbf4 205 case PIX_FMT_RGB555:
36ef5369 206 if(s->codec_id == AV_CODEC_ID_RPZA){
d99fbbf4
RT
207 w_align=4;
208 h_align=4;
209 }
210 case PIX_FMT_PAL8:
6337178b
MN
211 case PIX_FMT_BGR8:
212 case PIX_FMT_RGB8:
36ef5369 213 if(s->codec_id == AV_CODEC_ID_SMC){
d99fbbf4
RT
214 w_align=4;
215 h_align=4;
216 }
f0bbfc4a 217 break;
c31b8121 218 case PIX_FMT_BGR24:
36ef5369 219 if((s->codec_id == AV_CODEC_ID_MSZH) || (s->codec_id == AV_CODEC_ID_ZLIB)){
c31b8121
RT
220 w_align=4;
221 h_align=4;
222 }
223 break;
f0bbfc4a
MN
224 default:
225 w_align= 1;
226 h_align= 1;
227 break;
228 }
229
ef516f73
DC
230 *width = FFALIGN(*width , w_align);
231 *height= FFALIGN(*height, h_align);
36ef5369 232 if (s->codec_id == AV_CODEC_ID_H264)
ae4ffe9f 233 *height+=2; // some of the optimized chroma MC reads one line too much
eb285cfe 234
2d9535ad 235 for (i = 0; i < 4; i++)
560f773c 236 linesize_align[i] = STRIDE_ALIGN;
eb285cfe
RD
237}
238
239void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
240 int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
560f773c 241 int linesize_align[AV_NUM_DATA_POINTERS];
eb285cfe
RD
242 int align;
243 avcodec_align_dimensions2(s, width, height, linesize_align);
244 align = FFMAX(linesize_align[0], linesize_align[3]);
245 linesize_align[1] <<= chroma_shift;
246 linesize_align[2] <<= chroma_shift;
247 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
248 *width=FFALIGN(*width, align);
f0bbfc4a
MN
249}
250
5ee5fa02
JR
251int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
252 enum AVSampleFormat sample_fmt, const uint8_t *buf,
253 int buf_size, int align)
254{
255 int ch, planar, needed_size, ret = 0;
256
257 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
258 frame->nb_samples, sample_fmt,
259 align);
260 if (buf_size < needed_size)
261 return AVERROR(EINVAL);
262
263 planar = av_sample_fmt_is_planar(sample_fmt);
264 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
265 if (!(frame->extended_data = av_mallocz(nb_channels *
266 sizeof(*frame->extended_data))))
267 return AVERROR(ENOMEM);
268 } else {
269 frame->extended_data = frame->data;
270 }
271
272 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
273 buf, nb_channels, frame->nb_samples,
274 sample_fmt, align)) < 0) {
275 if (frame->extended_data != frame->data)
276 av_free(frame->extended_data);
277 return ret;
278 }
279 if (frame->extended_data != frame->data) {
280 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
281 frame->data[ch] = frame->extended_data[ch];
282 }
283
284 return ret;
285}
286
0eea2129
JR
287static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
288{
289 AVCodecInternal *avci = avctx->internal;
290 InternalBuffer *buf;
5ee5fa02 291 int buf_size, ret;
0eea2129
JR
292
293 buf_size = av_samples_get_buffer_size(NULL, avctx->channels,
294 frame->nb_samples, avctx->sample_fmt,
c58846f3 295 0);
0eea2129
JR
296 if (buf_size < 0)
297 return AVERROR(EINVAL);
298
0eea2129
JR
299 /* allocate InternalBuffer if needed */
300 if (!avci->buffer) {
301 avci->buffer = av_mallocz(sizeof(InternalBuffer));
302 if (!avci->buffer)
303 return AVERROR(ENOMEM);
304 }
305 buf = avci->buffer;
306
307 /* if there is a previously-used internal buffer, check its size and
308 channel count to see if we can reuse it */
309 if (buf->extended_data) {
310 /* if current buffer is too small, free it */
311 if (buf->extended_data[0] && buf_size > buf->audio_data_size) {
312 av_free(buf->extended_data[0]);
313 if (buf->extended_data != buf->data)
314 av_free(&buf->extended_data);
315 buf->extended_data = NULL;
316 buf->data[0] = NULL;
317 }
318 /* if number of channels has changed, reset and/or free extended data
319 pointers but leave data buffer in buf->data[0] for reuse */
320 if (buf->nb_channels != avctx->channels) {
321 if (buf->extended_data != buf->data)
322 av_free(buf->extended_data);
323 buf->extended_data = NULL;
324 }
325 }
326
327 /* if there is no previous buffer or the previous buffer cannot be used
328 as-is, allocate a new buffer and/or rearrange the channel pointers */
329 if (!buf->extended_data) {
5ee5fa02
JR
330 if (!buf->data[0]) {
331 if (!(buf->data[0] = av_mallocz(buf_size)))
0eea2129 332 return AVERROR(ENOMEM);
5ee5fa02 333 buf->audio_data_size = buf_size;
0eea2129 334 }
5ee5fa02
JR
335 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
336 avctx->sample_fmt, buf->data[0],
c58846f3 337 buf->audio_data_size, 0)))
0eea2129
JR
338 return ret;
339
5ee5fa02
JR
340 if (frame->extended_data == frame->data)
341 buf->extended_data = buf->data;
342 else
343 buf->extended_data = frame->extended_data;
344 memcpy(buf->data, frame->data, sizeof(frame->data));
345 buf->linesize[0] = frame->linesize[0];
346 buf->nb_channels = avctx->channels;
347 } else {
348 /* copy InternalBuffer info to the AVFrame */
349 frame->extended_data = buf->extended_data;
350 frame->linesize[0] = buf->linesize[0];
351 memcpy(frame->data, buf->data, sizeof(frame->data));
0eea2129
JR
352 }
353
0eea2129 354 frame->type = FF_BUFFER_TYPE_INTERNAL;
0eea2129
JR
355
356 if (avctx->pkt) frame->pkt_pts = avctx->pkt->pts;
357 else frame->pkt_pts = AV_NOPTS_VALUE;
358 frame->reordered_opaque = avctx->reordered_opaque;
359
828bd088
AK
360 frame->sample_rate = avctx->sample_rate;
361 frame->format = avctx->sample_fmt;
362 frame->channel_layout = avctx->channel_layout;
363
0eea2129
JR
364 if (avctx->debug & FF_DEBUG_BUFFERS)
365 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p, "
366 "internal audio buffer used\n", frame);
367
368 return 0;
369}
370
371static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
372{
1e491e29 373 int i;
f0bbfc4a
MN
374 int w= s->width;
375 int h= s->height;
d90cf87b 376 InternalBuffer *buf;
f3a29b75 377 AVCodecInternal *avci = s->internal;
0ecca7a4 378
65d999d6
MB
379 if(pic->data[0]!=NULL) {
380 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
381 return -1;
382 }
f3a29b75
JR
383 if(avci->buffer_count >= INTERNAL_BUFFER_SIZE) {
384 av_log(s, AV_LOG_ERROR, "buffer_count overflow (missing release_buffer?)\n");
65d999d6
MB
385 return -1;
386 }
1e491e29 387
e16f217c 388 if(av_image_check_size(w, h, 0, s))
0ecca7a4
MN
389 return -1;
390
f3a29b75
JR
391 if (!avci->buffer) {
392 avci->buffer = av_mallocz((INTERNAL_BUFFER_SIZE+1) *
393 sizeof(InternalBuffer));
d90cf87b 394 }
115329f1 395
f3a29b75 396 buf = &avci->buffer[avci->buffer_count];
115329f1 397
0701006e 398 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
560f773c 399 for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
0701006e
MN
400 av_freep(&buf->base[i]);
401 buf->data[i]= NULL;
402 }
403 }
404
8400b126 405 if (!buf->base[0]) {
f0bbfc4a 406 int h_chroma_shift, v_chroma_shift;
db7ae7d1
VS
407 int size[4] = {0};
408 int tmpsize;
c9d6e847 409 int unaligned;
c7622f9a 410 AVPicture picture;
560f773c 411 int stride_align[AV_NUM_DATA_POINTERS];
6e3ef511 412 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
c7622f9a 413
1e491e29 414 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
f0bbfc4a 415
eb285cfe 416 avcodec_align_dimensions2(s, &w, &h, stride_align);
115329f1 417
1e491e29
MN
418 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
419 w+= EDGE_WIDTH*2;
420 h+= EDGE_WIDTH*2;
421 }
5b67307a 422
c9d6e847
RD
423 do {
424 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
425 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
9d2e0ad8 426 av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
c9d6e847
RD
427 // increase alignment of w for next try (rhs gives the lowest bit set in w)
428 w += w & ~(w-1);
db7ae7d1 429
c9d6e847 430 unaligned = 0;
45bae968 431 for (i=0; i<4; i++){
c9d6e847 432 unaligned |= picture.linesize[i] % stride_align[i];
45bae968 433 }
c9d6e847 434 } while (unaligned);
db7ae7d1 435
9d2e0ad8 436 tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
f8c96d01
RD
437 if (tmpsize < 0)
438 return -1;
db7ae7d1
VS
439
440 for (i=0; i<3 && picture.data[i+1]; i++)
441 size[i] = picture.data[i+1] - picture.data[i];
cf73e32a 442 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
c7622f9a 443
c7622f9a
MN
444 memset(buf->base, 0, sizeof(buf->base));
445 memset(buf->data, 0, sizeof(buf->data));
1e491e29 446
b70335a2 447 for(i=0; i<4 && size[i]; i++){
2c19981a
MN
448 const int h_shift= i==0 ? 0 : h_chroma_shift;
449 const int v_shift= i==0 ? 0 : v_chroma_shift;
1e491e29 450
c7622f9a 451 buf->linesize[i]= picture.linesize[i];
1e491e29 452
c7622f9a 453 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
d90cf87b 454 if(buf->base[i]==NULL) return -1;
c7622f9a
MN
455 memset(buf->base[i], 128, size[i]);
456
3491a9b2 457 // no edge if EDGE EMU or not planar YUV
6337178b 458 if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
d90cf87b 459 buf->data[i] = buf->base[i];
1e491e29 460 else
6e3ef511 461 buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (pixel_size*EDGE_WIDTH>>h_shift), stride_align[i]);
1e491e29 462 }
560f773c
JR
463 for (; i < AV_NUM_DATA_POINTERS; i++) {
464 buf->base[i] = buf->data[i] = NULL;
465 buf->linesize[i] = 0;
466 }
6337178b 467 if(size[1] && !size[2])
ed5d30d9 468 ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
0701006e
MN
469 buf->width = s->width;
470 buf->height = s->height;
471 buf->pix_fmt= s->pix_fmt;
1e491e29 472 }
237e4938 473 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29 474
560f773c 475 for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
d90cf87b
MN
476 pic->base[i]= buf->base[i];
477 pic->data[i]= buf->data[i];
237e4938 478 pic->linesize[i]= buf->linesize[i];
d90cf87b 479 }
0eea2129 480 pic->extended_data = pic->data;
f3a29b75 481 avci->buffer_count++;
bc1ef855
RB
482 pic->width = buf->width;
483 pic->height = buf->height;
484 pic->format = buf->pix_fmt;
485 pic->sample_aspect_ratio = s->sample_aspect_ratio;
d90cf87b 486
393cbb96
MN
487 if(s->pkt) pic->pkt_pts= s->pkt->pts;
488 else pic->pkt_pts= AV_NOPTS_VALUE;
79de84f2
MN
489 pic->reordered_opaque= s->reordered_opaque;
490
385c820b 491 if(s->debug&FF_DEBUG_BUFFERS)
f3a29b75
JR
492 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d "
493 "buffers used\n", pic, avci->buffer_count);
385c820b 494
1e491e29
MN
495 return 0;
496}
497
0eea2129
JR
498int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
499{
500 switch (avctx->codec_type) {
501 case AVMEDIA_TYPE_VIDEO:
502 return video_get_buffer(avctx, frame);
503 case AVMEDIA_TYPE_AUDIO:
504 return audio_get_buffer(avctx, frame);
505 default:
506 return -1;
507 }
508}
509
492cd3a9 510void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 511 int i;
6829ac8d 512 InternalBuffer *buf, *last;
f3a29b75 513 AVCodecInternal *avci = s->internal;
d90cf87b 514
0eea2129
JR
515 assert(s->codec_type == AVMEDIA_TYPE_VIDEO);
516
4e00e76b 517 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
f3a29b75
JR
518 assert(avci->buffer_count);
519
520 if (avci->buffer) {
521 buf = NULL; /* avoids warning */
522 for (i = 0; i < avci->buffer_count; i++) { //just 3-5 checks so is not worth to optimize
523 buf = &avci->buffer[i];
524 if (buf->data[0] == pic->data[0])
525 break;
526 }
527 assert(i < avci->buffer_count);
528 avci->buffer_count--;
529 last = &avci->buffer[avci->buffer_count];
d90cf87b 530
a09bb3ba
MR
531 if (buf != last)
532 FFSWAP(InternalBuffer, *buf, *last);
6a9c8594 533 }
d90cf87b 534
560f773c 535 for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
1e491e29 536 pic->data[i]=NULL;
d90cf87b
MN
537// pic->base[i]=NULL;
538 }
1e491e29 539//printf("R%X\n", pic->opaque);
385c820b
AS
540
541 if(s->debug&FF_DEBUG_BUFFERS)
f3a29b75
JR
542 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d "
543 "buffers used\n", pic, avci->buffer_count);
1e491e29
MN
544}
545
e1c2a5a0
RT
546int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
547 AVFrame temp_pic;
548 int i;
549
0eea2129
JR
550 assert(s->codec_type == AVMEDIA_TYPE_VIDEO);
551
e1c2a5a0
RT
552 /* If no picture return a new buffer */
553 if(pic->data[0] == NULL) {
554 /* We will copy from buffer, so must be readable */
555 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
556 return s->get_buffer(s, pic);
557 }
558
d10319d8 559 assert(s->pix_fmt == pic->format);
87840eeb 560
e1c2a5a0 561 /* If internal buffer type return the same buffer */
b8af4fe9 562 if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
62ecd363
NG
563 if(s->pkt) pic->pkt_pts= s->pkt->pts;
564 else pic->pkt_pts= AV_NOPTS_VALUE;
b8af4fe9 565 pic->reordered_opaque= s->reordered_opaque;
e1c2a5a0 566 return 0;
b8af4fe9 567 }
e1c2a5a0
RT
568
569 /*
570 * Not internal type and reget_buffer not overridden, emulate cr buffer
571 */
572 temp_pic = *pic;
560f773c 573 for(i = 0; i < AV_NUM_DATA_POINTERS; i++)
e1c2a5a0
RT
574 pic->data[i] = pic->base[i] = NULL;
575 pic->opaque = NULL;
576 /* Allocate new frame */
577 if (s->get_buffer(s, pic))
578 return -1;
579 /* Copy image data from old buffer to new buffer */
636d6a4a 580 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
e1c2a5a0
RT
581 s->height);
582 s->release_buffer(s, &temp_pic); // Release old frame
583 return 0;
584}
585
3a84713a 586int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
9c3d33d6
MN
587 int i;
588
589 for(i=0; i<count; i++){
3a84713a 590 int r= func(c, (char*)arg + i*size);
9c3d33d6
MN
591 if(ret) ret[i]= r;
592 }
593 return 0;
594}
595
8d23a86f
RD
596int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
597 int i;
598
599 for(i=0; i<count; i++){
600 int r= func(c, arg, i, 0);
601 if(ret) ret[i]= r;
602 }
603 return 0;
604}
605
c269cf68
MN
606enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
607 while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
608 ++fmt;
a33c7159
MN
609 return fmt[0];
610}
611
9740beff
MN
612void avcodec_get_frame_defaults(AVFrame *pic){
613 memset(pic, 0, sizeof(AVFrame));
614
615 pic->pts= AV_NOPTS_VALUE;
c342499d 616 pic->key_frame= 1;
b58dbb5b 617 pic->sample_aspect_ratio = (AVRational){0, 1};
8a4a5f6f 618 pic->format = -1; /* unknown */
9740beff
MN
619}
620
492cd3a9 621AVFrame *avcodec_alloc_frame(void){
9740beff 622 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 623
9740beff 624 if(pic==NULL) return NULL;
115329f1 625
9740beff 626 avcodec_get_frame_defaults(pic);
115329f1 627
1e491e29
MN
628 return pic;
629}
630
0a0f19b5 631int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
0b950fe2 632{
31d76ec2 633 int ret = 0;
0b950fe2
AK
634 AVDictionary *tmp = NULL;
635
af08d9ae
AK
636 if (avcodec_is_open(avctx))
637 return 0;
638
bc901998
AK
639 if ((!codec && !avctx->codec)) {
640 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2().\n");
641 return AVERROR(EINVAL);
642 }
643 if ((codec && avctx->codec && codec != avctx->codec)) {
644 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
645 "but %s passed to avcodec_open2().\n", avctx->codec->name, codec->name);
646 return AVERROR(EINVAL);
647 }
648 if (!codec)
649 codec = avctx->codec;
650
4df30f71
AC
651 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
652 return AVERROR(EINVAL);
653
0b950fe2
AK
654 if (options)
655 av_dict_copy(&tmp, *options, 0);
115329f1 656
f988ce6c
657 /* If there is a user-supplied mutex locking routine, call it. */
658 if (ff_lockmgr_cb) {
659 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
660 return -1;
661 }
662
ddebfb15
MN
663 entangled_thread_counter++;
664 if(entangled_thread_counter != 1){
665 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
31d76ec2 666 ret = -1;
ddebfb15
MN
667 goto end;
668 }
de6d9b64 669
f3a29b75
JR
670 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
671 if (!avctx->internal) {
672 ret = AVERROR(ENOMEM);
673 goto end;
674 }
675
0edf8a7a 676 if (codec->priv_data_size > 0) {
dc51a72b 677 if(!avctx->priv_data){
0edf8a7a 678 avctx->priv_data = av_mallocz(codec->priv_data_size);
90f06cea
PI
679 if (!avctx->priv_data) {
680 ret = AVERROR(ENOMEM);
ddebfb15 681 goto end;
90f06cea 682 }
0b950fe2 683 if (codec->priv_class) {
9f64c821 684 *(const AVClass**)avctx->priv_data = codec->priv_class;
dc51a72b
MN
685 av_opt_set_defaults(avctx->priv_data);
686 }
687 }
1d36fb13 688 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
0b950fe2 689 goto free_and_end;
0edf8a7a
PG
690 } else {
691 avctx->priv_data = NULL;
692 }
0b950fe2
AK
693 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
694 goto free_and_end;
21adafec
MN
695
696 if(avctx->coded_width && avctx->coded_height)
697 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
698 else if(avctx->width && avctx->height)
699 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
700
82eac2f3
RD
701 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
702 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
703 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
704 av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
705 avcodec_set_dimensions(avctx, 0, 0);
706 }
707
f19c58b4
AJ
708 /* if the decoder init function was already called previously,
709 free the already allocated subtitle_header before overwriting it */
44fe77b3 710 if (av_codec_is_decoder(codec))
f19c58b4
AJ
711 av_freep(&avctx->subtitle_header);
712
fa77dd63 713#define SANE_NB_CHANNELS 128U
82eac2f3 714 if (avctx->channels > SANE_NB_CHANNELS) {
7868349a 715 ret = AVERROR(EINVAL);
2a9b5c9b 716 goto free_and_end;
0ecca7a4
MN
717 }
718
b5c85991 719 avctx->codec = codec;
72415b2a 720 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
36ef5369 721 avctx->codec_id == AV_CODEC_ID_NONE) {
681c180d
RD
722 avctx->codec_type = codec->type;
723 avctx->codec_id = codec->id;
724 }
e83c716e
AJ
725 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
726 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
4c0dda2b 727 av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
31d76ec2 728 ret = AVERROR(EINVAL);
2a9b5c9b 729 goto free_and_end;
4c0dda2b 730 }
b5c85991 731 avctx->frame_number = 0;
37b00b47 732
9a7dc618
MS
733 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
734 (!avctx->time_base.num || !avctx->time_base.den)) {
735 avctx->time_base.num = 1;
736 avctx->time_base.den = avctx->sample_rate;
737 }
738
37b00b47 739 if (HAVE_THREADS && !avctx->thread_opaque) {
ba9ef8d0 740 ret = ff_thread_init(avctx);
37b00b47
AS
741 if (ret < 0) {
742 goto free_and_end;
743 }
744 }
b6064d9a
JG
745 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
746 avctx->thread_count = 1;
37b00b47 747
44fe77b3 748 if (av_codec_is_encoder(avctx->codec)) {
2cfa2d92 749 int i;
8b00ab01 750 if (avctx->codec->sample_fmts) {
3dfc3e70
JR
751 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++)
752 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
753 break;
754 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
755 av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n");
756 ret = AVERROR(EINVAL);
757 goto free_and_end;
758 }
8b00ab01 759 }
dcd2b55e
PM
760 if (avctx->codec->pix_fmts) {
761 for (i = 0; avctx->codec->pix_fmts[i] != PIX_FMT_NONE; i++)
762 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
763 break;
764 if (avctx->codec->pix_fmts[i] == PIX_FMT_NONE) {
765 av_log(avctx, AV_LOG_ERROR, "Specified pix_fmt is not supported\n");
766 ret = AVERROR(EINVAL);
767 goto free_and_end;
768 }
769 }
8b00ab01
JR
770 if (avctx->codec->supported_samplerates) {
771 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
772 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
773 break;
774 if (avctx->codec->supported_samplerates[i] == 0) {
775 av_log(avctx, AV_LOG_ERROR, "Specified sample_rate is not supported\n");
776 ret = AVERROR(EINVAL);
777 goto free_and_end;
778 }
779 }
780 if (avctx->codec->channel_layouts) {
781 if (!avctx->channel_layout) {
782 av_log(avctx, AV_LOG_WARNING, "channel_layout not specified\n");
783 } else {
784 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
785 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
786 break;
787 if (avctx->codec->channel_layouts[i] == 0) {
788 av_log(avctx, AV_LOG_ERROR, "Specified channel_layout is not supported\n");
789 ret = AVERROR(EINVAL);
790 goto free_and_end;
791 }
792 }
793 }
168f9e8c
JR
794 if (avctx->channel_layout && avctx->channels) {
795 if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
796 av_log(avctx, AV_LOG_ERROR, "channel layout does not match number of channels\n");
797 ret = AVERROR(EINVAL);
798 goto free_and_end;
799 }
688b09fa
JR
800 } else if (avctx->channel_layout) {
801 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
168f9e8c 802 }
2cfa2d92 803 }
0fd0ef79 804
37b00b47 805 if(avctx->codec->init && !(avctx->active_thread_type&FF_THREAD_FRAME)){
2de4f9eb
MN
806 ret = avctx->codec->init(avctx);
807 if (ret < 0) {
2a9b5c9b 808 goto free_and_end;
2de4f9eb 809 }
6e546aaa 810 }
1337de0c
JR
811
812 if (av_codec_is_decoder(avctx->codec)) {
813 /* validate channel layout from the decoder */
814 if (avctx->channel_layout &&
815 av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
816 av_log(avctx, AV_LOG_WARNING, "channel layout does not match number of channels\n");
817 avctx->channel_layout = 0;
818 }
819 }
ddebfb15
MN
820end:
821 entangled_thread_counter--;
f988ce6c
822
823 /* Release any user-supplied mutex. */
824 if (ff_lockmgr_cb) {
825 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
826 }
0b950fe2
AK
827 if (options) {
828 av_dict_free(options);
829 *options = tmp;
830 }
831
ddebfb15 832 return ret;
2a9b5c9b 833free_and_end:
0b950fe2 834 av_dict_free(&tmp);
2a9b5c9b 835 av_freep(&avctx->priv_data);
f3a29b75 836 av_freep(&avctx->internal);
2a9b5c9b
MN
837 avctx->codec= NULL;
838 goto end;
de6d9b64
FB
839}
840
b2c75b6e 841int ff_alloc_packet(AVPacket *avpkt, int size)
de6d9b64 842{
b2c75b6e
JR
843 if (size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
844 return AVERROR(EINVAL);
845
846 if (avpkt->data) {
e42e9b0e 847 void *destruct = avpkt->destruct;
b2c75b6e
JR
848
849 if (avpkt->size < size)
850 return AVERROR(EINVAL);
851
b2c75b6e 852 av_init_packet(avpkt);
e42e9b0e 853 avpkt->destruct = destruct;
1a670973 854 avpkt->size = size;
b2c75b6e
JR
855 return 0;
856 } else {
857 return av_new_packet(avpkt, size);
0ecca7a4 858 }
b2c75b6e
JR
859}
860
a5117a24
AK
861/**
862 * Pad last frame with silence.
863 */
864static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
865{
866 AVFrame *frame = NULL;
867 uint8_t *buf = NULL;
868 int ret;
869
870 if (!(frame = avcodec_alloc_frame()))
871 return AVERROR(ENOMEM);
872 *frame = *src;
873
874 if ((ret = av_samples_get_buffer_size(&frame->linesize[0], s->channels,
875 s->frame_size, s->sample_fmt, 0)) < 0)
876 goto fail;
877
878 if (!(buf = av_malloc(ret))) {
879 ret = AVERROR(ENOMEM);
880 goto fail;
881 }
882
883 frame->nb_samples = s->frame_size;
884 if ((ret = avcodec_fill_audio_frame(frame, s->channels, s->sample_fmt,
885 buf, ret, 0)) < 0)
886 goto fail;
887 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
888 src->nb_samples, s->channels, s->sample_fmt)) < 0)
889 goto fail;
890 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
891 frame->nb_samples - src->nb_samples,
892 s->channels, s->sample_fmt)) < 0)
893 goto fail;
894
895 *dst = frame;
896
897 return 0;
898
899fail:
900 if (frame->extended_data != frame->data)
901 av_freep(&frame->extended_data);
902 av_freep(&buf);
903 av_freep(&frame);
904 return ret;
905}
906
b2c75b6e
JR
907int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
908 AVPacket *avpkt,
909 const AVFrame *frame,
910 int *got_packet_ptr)
911{
c22953b8 912 AVFrame tmp;
a5117a24 913 AVFrame *padded_frame = NULL;
b2c75b6e
JR
914 int ret;
915 int user_packet = !!avpkt->data;
b2c75b6e 916
52953d61
AK
917 *got_packet_ptr = 0;
918
b2c75b6e 919 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
7fb6c922 920 av_free_packet(avpkt);
b2c75b6e 921 av_init_packet(avpkt);
6f824977 922 return 0;
b2c75b6e
JR
923 }
924
c22953b8
AK
925 /* ensure that extended_data is properly set */
926 if (frame && !frame->extended_data) {
927 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
928 avctx->channels > AV_NUM_DATA_POINTERS) {
929 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
930 "with more than %d channels, but extended_data is not set.\n",
931 AV_NUM_DATA_POINTERS);
932 return AVERROR(EINVAL);
933 }
934 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
935
936 tmp = *frame;
937 tmp.extended_data = tmp.data;
938 frame = &tmp;
939 }
940
b2c75b6e
JR
941 /* check for valid frame size */
942 if (frame) {
b2c75b6e 943 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
b461cd4d 944 if (frame->nb_samples > avctx->frame_size)
b2c75b6e
JR
945 return AVERROR(EINVAL);
946 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
a5117a24
AK
947 if (frame->nb_samples < avctx->frame_size &&
948 !avctx->internal->last_audio_frame) {
949 ret = pad_last_frame(avctx, &padded_frame, frame);
950 if (ret < 0)
951 return ret;
952
953 frame = padded_frame;
954 avctx->internal->last_audio_frame = 1;
955 }
956
b461cd4d 957 if (frame->nb_samples != avctx->frame_size)
b2c75b6e
JR
958 return AVERROR(EINVAL);
959 }
b2c75b6e
JR
960 }
961
fa0319b4
JR
962 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
963 if (!ret) {
964 if (*got_packet_ptr) {
a75bc764 965 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
70749c48
JR
966 if (avpkt->pts == AV_NOPTS_VALUE)
967 avpkt->pts = frame->pts;
968 if (!avpkt->duration)
969 avpkt->duration = ff_samples_to_time_base(avctx,
970 frame->nb_samples);
a75bc764
JR
971 }
972 avpkt->dts = avpkt->pts;
b758cf73
JR
973 } else {
974 avpkt->size = 0;
b2c75b6e 975 }
b2c75b6e 976
3c6607eb 977 if (!user_packet && avpkt->size) {
a1977e01
JR
978 uint8_t *new_data = av_realloc(avpkt->data, avpkt->size);
979 if (new_data)
980 avpkt->data = new_data;
981 }
982
b2c75b6e 983 avctx->frame_number++;
a1977e01 984 }
b2c75b6e 985
74e10b62 986 if (ret < 0 || !*got_packet_ptr) {
7fb6c922 987 av_free_packet(avpkt);
74e10b62
JR
988 av_init_packet(avpkt);
989 return ret;
990 }
7fb6c922 991
b2c75b6e
JR
992 /* NOTE: if we add any audio encoders which output non-keyframe packets,
993 this needs to be moved to the encoders, but for now we can do it
994 here to simplify things */
995 avpkt->flags |= AV_PKT_FLAG_KEY;
996
a5117a24
AK
997 if (padded_frame) {
998 av_freep(&padded_frame->data[0]);
999 if (padded_frame->extended_data != padded_frame->data)
1000 av_freep(&padded_frame->extended_data);
1001 av_freep(&padded_frame);
1002 }
1003
b2c75b6e 1004 return ret;
de6d9b64
FB
1005}
1006
b2c75b6e
JR
1007#if FF_API_OLD_DECODE_AUDIO
1008int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
1009 uint8_t *buf, int buf_size,
1010 const short *samples)
1011{
1012 AVPacket pkt;
1013 AVFrame frame0;
1014 AVFrame *frame;
1015 int ret, samples_size, got_packet;
1016
1017 av_init_packet(&pkt);
1018 pkt.data = buf;
1019 pkt.size = buf_size;
1020
1021 if (samples) {
1022 frame = &frame0;
1023 avcodec_get_frame_defaults(frame);
1024
1025 if (avctx->frame_size) {
1026 frame->nb_samples = avctx->frame_size;
1027 } else {
1028 /* if frame_size is not set, the number of samples must be
1029 calculated from the buffer size */
1030 int64_t nb_samples;
1031 if (!av_get_bits_per_sample(avctx->codec_id)) {
1032 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
1033 "support this codec\n");
1034 return AVERROR(EINVAL);
1035 }
1036 nb_samples = (int64_t)buf_size * 8 /
1037 (av_get_bits_per_sample(avctx->codec_id) *
1038 avctx->channels);
1039 if (nb_samples >= INT_MAX)
1040 return AVERROR(EINVAL);
1041 frame->nb_samples = nb_samples;
1042 }
1043
1044 /* it is assumed that the samples buffer is large enough based on the
1045 relevant parameters */
1046 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
1047 frame->nb_samples,
1048 avctx->sample_fmt, 1);
1049 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
1050 avctx->sample_fmt,
0c517644
DB
1051 (const uint8_t *) samples,
1052 samples_size, 1)))
b2c75b6e
JR
1053 return ret;
1054
1055 /* fabricate frame pts from sample count.
1056 this is needed because the avcodec_encode_audio() API does not have
1057 a way for the user to provide pts */
91a28b0e
JR
1058 frame->pts = ff_samples_to_time_base(avctx,
1059 avctx->internal->sample_count);
b2c75b6e
JR
1060 avctx->internal->sample_count += frame->nb_samples;
1061 } else {
1062 frame = NULL;
1063 }
1064
1065 got_packet = 0;
1066 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
1067 if (!ret && got_packet && avctx->coded_frame) {
1068 avctx->coded_frame->pts = pkt.pts;
1069 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1070 }
1071 /* free any side data since we cannot return it */
1072 if (pkt.side_data_elems > 0) {
1073 int i;
1074 for (i = 0; i < pkt.side_data_elems; i++)
1075 av_free(pkt.side_data[i].data);
1076 av_freep(&pkt.side_data);
1077 pkt.side_data_elems = 0;
1078 }
1079
1080 if (frame && frame->extended_data != frame->data)
1081 av_free(frame->extended_data);
1082
1083 return ret ? ret : pkt.size;
1084}
1085#endif
1086
52f82a11 1087#if FF_API_OLD_ENCODE_VIDEO
5e4c7ca2 1088int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 1089 const AVFrame *pict)
de6d9b64 1090{
52f82a11
AK
1091 AVPacket pkt;
1092 int ret, got_packet = 0;
1093
0ecca7a4 1094 if(buf_size < FF_MIN_BUFFER_SIZE){
5286d11f 1095 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
1096 return -1;
1097 }
115329f1 1098
52f82a11
AK
1099 av_init_packet(&pkt);
1100 pkt.data = buf;
1101 pkt.size = buf_size;
1102
1103 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
1104 if (!ret && got_packet && avctx->coded_frame) {
1105 avctx->coded_frame->pts = pkt.pts;
1106 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1107 }
1108
1109 /* free any side data since we cannot return it */
1110 if (pkt.side_data_elems > 0) {
1111 int i;
1112 for (i = 0; i < pkt.side_data_elems; i++)
1113 av_free(pkt.side_data[i].data);
1114 av_freep(&pkt.side_data);
1115 pkt.side_data_elems = 0;
1116 }
1117
1118 return ret ? ret : pkt.size;
1119}
1120#endif
1121
52f82a11
AK
1122int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1123 AVPacket *avpkt,
1124 const AVFrame *frame,
1125 int *got_packet_ptr)
1126{
1127 int ret;
1128 int user_packet = !!avpkt->data;
1129
d55fa6f9
AK
1130 *got_packet_ptr = 0;
1131
52f82a11 1132 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
7fb6c922 1133 av_free_packet(avpkt);
52f82a11
AK
1134 av_init_packet(avpkt);
1135 avpkt->size = 0;
6f824977 1136 return 0;
52f82a11
AK
1137 }
1138
1139 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1140 return AVERROR(EINVAL);
1141
ff311c09 1142 av_assert0(avctx->codec->encode2);
52f82a11 1143
ff311c09
AK
1144 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1145 if (!ret) {
1146 if (!*got_packet_ptr)
1147 avpkt->size = 0;
1148 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
1149 avpkt->pts = avpkt->dts = frame->pts;
52f82a11 1150
3c6607eb 1151 if (!user_packet && avpkt->size) {
eb727387
AK
1152 uint8_t *new_data = av_realloc(avpkt->data, avpkt->size);
1153 if (new_data)
1154 avpkt->data = new_data;
1155 }
1156
52f82a11 1157 avctx->frame_number++;
03ca0a5b 1158 }
52f82a11 1159
7fb6c922
AK
1160 if (ret < 0 || !*got_packet_ptr)
1161 av_free_packet(avpkt);
1162
52f82a11
AK
1163 emms_c();
1164 return ret;
de6d9b64
FB
1165}
1166
115329f1 1167int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
1168 const AVSubtitle *sub)
1169{
1170 int ret;
9413db9e
BA
1171 if(sub->start_display_time) {
1172 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
1173 return -1;
1174 }
505aa6c9
BA
1175 if(sub->num_rects == 0 || !sub->rects)
1176 return -1;
466b39ef 1177 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
240c1657
FB
1178 avctx->frame_number++;
1179 return ret;
1180}
1181
867f923d
MS
1182static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
1183{
1184 int size = 0;
1185 const uint8_t *data;
1186 uint32_t flags;
1187
1188 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))
1189 return;
1190
1191 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
1192 if (!data || size < 4)
1193 return;
1194 flags = bytestream_get_le32(&data);
1195 size -= 4;
1196 if (size < 4) /* Required for any of the changes */
1197 return;
1198 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
1199 avctx->channels = bytestream_get_le32(&data);
1200 size -= 4;
1201 }
1202 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
1203 if (size < 8)
1204 return;
1205 avctx->channel_layout = bytestream_get_le64(&data);
1206 size -= 8;
1207 }
1208 if (size < 4)
1209 return;
1210 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
1211 avctx->sample_rate = bytestream_get_le32(&data);
1212 size -= 4;
1213 }
1214 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
1215 if (size < 8)
1216 return;
1217 avctx->width = bytestream_get_le32(&data);
1218 avctx->height = bytestream_get_le32(&data);
c5d907b6 1219 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
867f923d
MS
1220 size -= 8;
1221 }
1222}
1223
7a00bbad
TB
1224int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
1225 int *got_picture_ptr,
1226 AVPacket *avpkt)
1227{
de6d9b64 1228 int ret;
115329f1 1229
53db1cae 1230 *got_picture_ptr= 0;
e16f217c 1231 if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
0ecca7a4 1232 return -1;
393cbb96
MN
1233
1234 avctx->pkt = avpkt;
c5d907b6 1235 apply_param_change(avctx, avpkt);
393cbb96 1236
37b00b47 1237 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
27237d52 1238 if (HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
37b00b47
AS
1239 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
1240 avpkt);
1241 else {
1242 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
1243 avpkt);
1244 picture->pkt_dts= avpkt->dts;
b58dbb5b 1245 picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
3a2ddf7c
SS
1246 picture->width = avctx->width;
1247 picture->height = avctx->height;
8a4a5f6f 1248 picture->format = avctx->pix_fmt;
37b00b47 1249 }
6bb925f4 1250
bb628dae 1251 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1
DB
1252
1253 if (*got_picture_ptr)
934982c4
MN
1254 avctx->frame_number++;
1255 }else
1256 ret= 0;
1257
de6d9b64
FB
1258 return ret;
1259}
1260
0eea2129 1261#if FF_API_OLD_DECODE_AUDIO
7a00bbad
TB
1262int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
1263 int *frame_size_ptr,
1264 AVPacket *avpkt)
1265{
0eea2129
JR
1266 AVFrame frame;
1267 int ret, got_frame = 0;
1268
1269 if (avctx->get_buffer != avcodec_default_get_buffer) {
e2ff436e
RT
1270 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
1271 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
1272 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
1273 "avcodec_decode_audio4()\n");
1274 avctx->get_buffer = avcodec_default_get_buffer;
0eea2129
JR
1275 }
1276
1277 ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt);
1278
1279 if (ret >= 0 && got_frame) {
1280 int ch, plane_size;
1281 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
1282 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
1283 frame.nb_samples,
1284 avctx->sample_fmt, 1);
1285 if (*frame_size_ptr < data_size) {
1286 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
1287 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
1288 return AVERROR(EINVAL);
1289 }
1290
1291 memcpy(samples, frame.extended_data[0], plane_size);
1292
1293 if (planar && avctx->channels > 1) {
1294 uint8_t *out = ((uint8_t *)samples) + plane_size;
1295 for (ch = 1; ch < avctx->channels; ch++) {
1296 memcpy(out, frame.extended_data[ch], plane_size);
1297 out += plane_size;
1298 }
1299 }
1300 *frame_size_ptr = data_size;
1301 } else {
1302 *frame_size_ptr = 0;
1303 }
1304 return ret;
1305}
1306#endif
1307
1308int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
1309 AVFrame *frame,
1310 int *got_frame_ptr,
1311 AVPacket *avpkt)
1312{
1313 int ret = 0;
1314
1315 *got_frame_ptr = 0;
de6d9b64 1316
393cbb96
MN
1317 avctx->pkt = avpkt;
1318
6326afd5
JR
1319 if (!avpkt->data && avpkt->size) {
1320 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
1321 return AVERROR(EINVAL);
1322 }
1323
f13db94d
MS
1324 apply_param_change(avctx, avpkt);
1325
0eea2129
JR
1326 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
1327 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, avpkt);
1328 if (ret >= 0 && *got_frame_ptr) {
1329 avctx->frame_number++;
1330 frame->pkt_dts = avpkt->dts;
8a4a5f6f
SS
1331 if (frame->format == AV_SAMPLE_FMT_NONE)
1332 frame->format = avctx->sample_fmt;
9c856d62 1333 }
ac66834c 1334 }
de6d9b64
FB
1335 return ret;
1336}
1337
7a00bbad
TB
1338int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
1339 int *got_sub_ptr,
1340 AVPacket *avpkt)
1341{
240c1657
FB
1342 int ret;
1343
393cbb96 1344 avctx->pkt = avpkt;
240c1657 1345 *got_sub_ptr = 0;
7a00bbad 1346 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
240c1657
FB
1347 if (*got_sub_ptr)
1348 avctx->frame_number++;
1349 return ret;
1350}
1351
e1d7c883
RD
1352void avsubtitle_free(AVSubtitle *sub)
1353{
1354 int i;
1355
1356 for (i = 0; i < sub->num_rects; i++)
1357 {
8b834ac5
RD
1358 av_freep(&sub->rects[i]->pict.data[0]);
1359 av_freep(&sub->rects[i]->pict.data[1]);
1360 av_freep(&sub->rects[i]->pict.data[2]);
1361 av_freep(&sub->rects[i]->pict.data[3]);
1362 av_freep(&sub->rects[i]->text);
1363 av_freep(&sub->rects[i]->ass);
1364 av_freep(&sub->rects[i]);
e1d7c883
RD
1365 }
1366
8b834ac5 1367 av_freep(&sub->rects);
e1d7c883
RD
1368
1369 memset(sub, 0, sizeof(AVSubtitle));
1370}
1371
0752cd39 1372av_cold int avcodec_close(AVCodecContext *avctx)
de6d9b64 1373{
f988ce6c
1374 /* If there is a user-supplied mutex locking routine, call it. */
1375 if (ff_lockmgr_cb) {
1376 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
1377 return -1;
1378 }
1379
ddebfb15
MN
1380 entangled_thread_counter++;
1381 if(entangled_thread_counter != 1){
1382 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
1383 entangled_thread_counter--;
1384 return -1;
1385 }
1386
0e72ad95
AK
1387 if (avcodec_is_open(avctx)) {
1388 if (HAVE_THREADS && avctx->thread_opaque)
1389 ff_thread_free(avctx);
1390 if (avctx->codec && avctx->codec->close)
1391 avctx->codec->close(avctx);
1392 avcodec_default_free_buffers(avctx);
1393 avctx->coded_frame = NULL;
1394 av_freep(&avctx->internal);
1395 }
1396
1397 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
36773283
AK
1398 av_opt_free(avctx->priv_data);
1399 av_opt_free(avctx);
3123dd79 1400 av_freep(&avctx->priv_data);
44fe77b3 1401 if (av_codec_is_encoder(avctx->codec))
c4f267ab 1402 av_freep(&avctx->extradata);
de6d9b64 1403 avctx->codec = NULL;
37b00b47 1404 avctx->active_thread_type = 0;
ddebfb15 1405 entangled_thread_counter--;
f988ce6c
1406
1407 /* Release any user-supplied mutex. */
1408 if (ff_lockmgr_cb) {
1409 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
1410 }
de6d9b64
FB
1411 return 0;
1412}
1413
36ef5369 1414AVCodec *avcodec_find_encoder(enum AVCodecID id)
de6d9b64 1415{
93ebfeea 1416 AVCodec *p, *experimental=NULL;
de6d9b64
FB
1417 p = first_avcodec;
1418 while (p) {
44fe77b3 1419 if (av_codec_is_encoder(p) && p->id == id) {
93ebfeea
JG
1420 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
1421 experimental = p;
1422 } else
1423 return p;
1424 }
de6d9b64
FB
1425 p = p->next;
1426 }
93ebfeea 1427 return experimental;
de6d9b64
FB
1428}
1429
98f3b098
A
1430AVCodec *avcodec_find_encoder_by_name(const char *name)
1431{
1432 AVCodec *p;
fc228c90
AJ
1433 if (!name)
1434 return NULL;
98f3b098
A
1435 p = first_avcodec;
1436 while (p) {
44fe77b3 1437 if (av_codec_is_encoder(p) && strcmp(name,p->name) == 0)
98f3b098
A
1438 return p;
1439 p = p->next;
1440 }
1441 return NULL;
1442}
1443
36ef5369 1444AVCodec *avcodec_find_decoder(enum AVCodecID id)
de6d9b64
FB
1445{
1446 AVCodec *p;
1447 p = first_avcodec;
1448 while (p) {
44fe77b3 1449 if (av_codec_is_decoder(p) && p->id == id)
de6d9b64
FB
1450 return p;
1451 p = p->next;
1452 }
1453 return NULL;
1454}
1455
1456AVCodec *avcodec_find_decoder_by_name(const char *name)
1457{
1458 AVCodec *p;
fc228c90
AJ
1459 if (!name)
1460 return NULL;
de6d9b64
FB
1461 p = first_avcodec;
1462 while (p) {
44fe77b3 1463 if (av_codec_is_decoder(p) && strcmp(name,p->name) == 0)
de6d9b64
FB
1464 return p;
1465 p = p->next;
1466 }
1467 return NULL;
1468}
1469
406aa93f 1470static int get_bit_rate(AVCodecContext *ctx)
ce34ff6b
RK
1471{
1472 int bit_rate;
1473 int bits_per_sample;
1474
1475 switch(ctx->codec_type) {
72415b2a 1476 case AVMEDIA_TYPE_VIDEO:
4563cf24
SS
1477 case AVMEDIA_TYPE_DATA:
1478 case AVMEDIA_TYPE_SUBTITLE:
1479 case AVMEDIA_TYPE_ATTACHMENT:
ce34ff6b
RK
1480 bit_rate = ctx->bit_rate;
1481 break;
72415b2a 1482 case AVMEDIA_TYPE_AUDIO:
ce34ff6b
RK
1483 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1484 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1485 break;
ce34ff6b
RK
1486 default:
1487 bit_rate = 0;
1488 break;
1489 }
1490 return bit_rate;
1491}
1492
7e566bbe
SS
1493size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1494{
1495 int i, len, ret = 0;
1496
1497 for (i = 0; i < 4; i++) {
1498 len = snprintf(buf, buf_size,
1499 isprint(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
1500 buf += len;
1501 buf_size = buf_size > len ? buf_size - len : 0;
1502 ret += len;
1503 codec_tag>>=8;
1504 }
1505 return ret;
1506}
1507
de6d9b64
FB
1508void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1509{
1510 const char *codec_name;
2a81f4bd 1511 const char *profile = NULL;
0a0f19b5 1512 const AVCodec *p;
de6d9b64 1513 char buf1[32];
a96b68b7 1514 int bitrate;
59771f71 1515 AVRational display_aspect_ratio;
de6d9b64 1516
df8d5eaa
AC
1517 if (enc->codec)
1518 p = enc->codec;
1519 else if (encode)
de6d9b64
FB
1520 p = avcodec_find_encoder(enc->codec_id);
1521 else
1522 p = avcodec_find_decoder(enc->codec_id);
1523
1524 if (p) {
1525 codec_name = p->name;
2a81f4bd 1526 profile = av_get_profile_name(p, enc->profile);
36ef5369 1527 } else if (enc->codec_id == AV_CODEC_ID_MPEG2TS) {
985180a1
FB
1528 /* fake mpeg2 transport stream codec (currently not
1529 registered) */
1530 codec_name = "mpeg2ts";
de6d9b64
FB
1531 } else if (enc->codec_name[0] != '\0') {
1532 codec_name = enc->codec_name;
1533 } else {
1534 /* output avi tags */
ab0b5378
SS
1535 char tag_buf[32];
1536 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
1537 snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag);
de6d9b64
FB
1538 codec_name = buf1;
1539 }
1540
1541 switch(enc->codec_type) {
72415b2a 1542 case AVMEDIA_TYPE_VIDEO:
de6d9b64
FB
1543 snprintf(buf, buf_size,
1544 "Video: %s%s",
7d1c3fc1 1545 codec_name, enc->mb_decision ? " (hq)" : "");
2a81f4bd
AH
1546 if (profile)
1547 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1548 " (%s)", profile);
82c0c4ba 1549 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
1550 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1551 ", %s",
94bed8e5 1552 av_get_pix_fmt_name(enc->pix_fmt));
cf087595 1553 }
de6d9b64
FB
1554 if (enc->width) {
1555 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
1556 ", %dx%d",
1557 enc->width, enc->height);
7ee4dd02 1558 if (enc->sample_aspect_ratio.num) {
cbaf50f8
BC
1559 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1560 enc->width*enc->sample_aspect_ratio.num,
1561 enc->height*enc->sample_aspect_ratio.den,
1562 1024*1024);
1563 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1564 " [PAR %d:%d DAR %d:%d]",
1565 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1566 display_aspect_ratio.num, display_aspect_ratio.den);
7ee4dd02 1567 }
a309073b 1568 if(av_log_get_level() >= AV_LOG_DEBUG){
9ce6c138 1569 int g= av_gcd(enc->time_base.num, enc->time_base.den);
21189011
MN
1570 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1571 ", %d/%d",
1572 enc->time_base.num/g, enc->time_base.den/g);
1573 }
de6d9b64 1574 }
4bfad535
FB
1575 if (encode) {
1576 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1577 ", q=%d-%d", enc->qmin, enc->qmax);
1578 }
de6d9b64 1579 break;
72415b2a 1580 case AVMEDIA_TYPE_AUDIO:
de6d9b64
FB
1581 snprintf(buf, buf_size,
1582 "Audio: %s",
1583 codec_name);
2a81f4bd
AH
1584 if (profile)
1585 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1586 " (%s)", profile);
de6d9b64
FB
1587 if (enc->sample_rate) {
1588 snprintf(buf + strlen(buf), buf_size - strlen(buf),
0d72e7d0 1589 ", %d Hz", enc->sample_rate);
de6d9b64 1590 }
0d72e7d0 1591 av_strlcat(buf, ", ", buf_size);
63e8d976 1592 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
5d6e4c16 1593 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
9e82a113 1594 snprintf(buf + strlen(buf), buf_size - strlen(buf),
ba7d6e79 1595 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
9e82a113 1596 }
de6d9b64 1597 break;
72415b2a 1598 case AVMEDIA_TYPE_DATA:
985180a1 1599 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657 1600 break;
72415b2a 1601 case AVMEDIA_TYPE_SUBTITLE:
240c1657 1602 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1 1603 break;
72415b2a 1604 case AVMEDIA_TYPE_ATTACHMENT:
f8d7c9d3 1605 snprintf(buf, buf_size, "Attachment: %s", codec_name);
f8d7c9d3 1606 break;
de6d9b64 1607 default:
9fe5a7b8
MN
1608 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1609 return;
de6d9b64 1610 }
4bfad535
FB
1611 if (encode) {
1612 if (enc->flags & CODEC_FLAG_PASS1)
1613 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1614 ", pass 1");
1615 if (enc->flags & CODEC_FLAG_PASS2)
1616 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1617 ", pass 2");
1618 }
406aa93f 1619 bitrate = get_bit_rate(enc);
a96b68b7 1620 if (bitrate != 0) {
115329f1 1621 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 1622 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
1623 }
1624}
1625
060ec0a8
AH
1626const char *av_get_profile_name(const AVCodec *codec, int profile)
1627{
1628 const AVProfile *p;
1629 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1630 return NULL;
1631
1632 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1633 if (p->profile == profile)
1634 return p->name;
1635
1636 return NULL;
1637}
1638
156e5023
NK
1639unsigned avcodec_version( void )
1640{
1641 return LIBAVCODEC_VERSION_INT;
1642}
cf087595 1643
41600690 1644const char *avcodec_configuration(void)
c1736936 1645{
29ba0911 1646 return LIBAV_CONFIGURATION;
c1736936
DB
1647}
1648
41600690 1649const char *avcodec_license(void)
c1736936
DB
1650{
1651#define LICENSE_PREFIX "libavcodec license: "
a03be6e1 1652 return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
c1736936
DB
1653}
1654
1c2a8c7f
MN
1655void avcodec_flush_buffers(AVCodecContext *avctx)
1656{
27237d52 1657 if(HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
37b00b47 1658 ff_thread_flush(avctx);
d1cf4591 1659 else if(avctx->codec->flush)
7a06ff14 1660 avctx->codec->flush(avctx);
1c2a8c7f
MN
1661}
1662
0eea2129
JR
1663static void video_free_buffers(AVCodecContext *s)
1664{
f3a29b75 1665 AVCodecInternal *avci = s->internal;
d90cf87b
MN
1666 int i, j;
1667
f3a29b75
JR
1668 if (!avci->buffer)
1669 return;
115329f1 1670
f3a29b75
JR
1671 if (avci->buffer_count)
1672 av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n",
1673 avci->buffer_count);
d90cf87b 1674 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
f3a29b75 1675 InternalBuffer *buf = &avci->buffer[i];
d90cf87b
MN
1676 for(j=0; j<4; j++){
1677 av_freep(&buf->base[j]);
1678 buf->data[j]= NULL;
1679 }
1680 }
f3a29b75 1681 av_freep(&avci->buffer);
115329f1 1682
f3a29b75 1683 avci->buffer_count=0;
d90cf87b
MN
1684}
1685
0eea2129
JR
1686static void audio_free_buffers(AVCodecContext *avctx)
1687{
1688 AVCodecInternal *avci = avctx->internal;
1689 InternalBuffer *buf;
1690
1691 if (!avci->buffer)
1692 return;
1693 buf = avci->buffer;
1694
1695 if (buf->extended_data) {
1696 av_free(buf->extended_data[0]);
1697 if (buf->extended_data != buf->data)
1698 av_free(buf->extended_data);
1699 }
1700 av_freep(&avci->buffer);
1701}
1702
1703void avcodec_default_free_buffers(AVCodecContext *avctx)
1704{
1705 switch (avctx->codec_type) {
1706 case AVMEDIA_TYPE_VIDEO:
1707 video_free_buffers(avctx);
1708 break;
1709 case AVMEDIA_TYPE_AUDIO:
1710 audio_free_buffers(avctx);
1711 break;
1712 default:
1713 break;
1714 }
1715}
1716
36ef5369 1717int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
6699d074 1718{
ac3e1834 1719 switch(codec_id){
36ef5369
AK
1720 case AV_CODEC_ID_ADPCM_CT:
1721 case AV_CODEC_ID_ADPCM_IMA_APC:
1722 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1723 case AV_CODEC_ID_ADPCM_IMA_WS:
1724 case AV_CODEC_ID_ADPCM_G722:
1725 case AV_CODEC_ID_ADPCM_YAMAHA:
f32fd318 1726 return 4;
36ef5369
AK
1727 case AV_CODEC_ID_PCM_ALAW:
1728 case AV_CODEC_ID_PCM_MULAW:
1729 case AV_CODEC_ID_PCM_S8:
1730 case AV_CODEC_ID_PCM_U8:
1731 case AV_CODEC_ID_PCM_ZORK:
ac3e1834 1732 return 8;
36ef5369
AK
1733 case AV_CODEC_ID_PCM_S16BE:
1734 case AV_CODEC_ID_PCM_S16LE:
1735 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1736 case AV_CODEC_ID_PCM_U16BE:
1737 case AV_CODEC_ID_PCM_U16LE:
ac3e1834 1738 return 16;
36ef5369
AK
1739 case AV_CODEC_ID_PCM_S24DAUD:
1740 case AV_CODEC_ID_PCM_S24BE:
1741 case AV_CODEC_ID_PCM_S24LE:
1742 case AV_CODEC_ID_PCM_U24BE:
1743 case AV_CODEC_ID_PCM_U24LE:
ac3e1834 1744 return 24;
36ef5369
AK
1745 case AV_CODEC_ID_PCM_S32BE:
1746 case AV_CODEC_ID_PCM_S32LE:
1747 case AV_CODEC_ID_PCM_U32BE:
1748 case AV_CODEC_ID_PCM_U32LE:
1749 case AV_CODEC_ID_PCM_F32BE:
1750 case AV_CODEC_ID_PCM_F32LE:
ac3e1834 1751 return 32;
36ef5369
AK
1752 case AV_CODEC_ID_PCM_F64BE:
1753 case AV_CODEC_ID_PCM_F64LE:
143a5d6f 1754 return 64;
ac3e1834
BC
1755 default:
1756 return 0;
1757 }
1758}
1759
36ef5369 1760int av_get_bits_per_sample(enum AVCodecID codec_id)
6699d074
JR
1761{
1762 switch (codec_id) {
36ef5369 1763 case AV_CODEC_ID_ADPCM_SBPRO_2:
6699d074 1764 return 2;
36ef5369 1765 case AV_CODEC_ID_ADPCM_SBPRO_3:
6699d074 1766 return 3;
36ef5369
AK
1767 case AV_CODEC_ID_ADPCM_SBPRO_4:
1768 case AV_CODEC_ID_ADPCM_IMA_WAV:
1769 case AV_CODEC_ID_ADPCM_IMA_QT:
1770 case AV_CODEC_ID_ADPCM_SWF:
1771 case AV_CODEC_ID_ADPCM_MS:
6699d074
JR
1772 return 4;
1773 default:
1774 return av_get_exact_bits_per_sample(codec_id);
1775 }
1776}
1777
9524cf79
JR
1778int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1779{
1780 int id, sr, ch, ba, tag, bps;
1781
1782 id = avctx->codec_id;
1783 sr = avctx->sample_rate;
1784 ch = avctx->channels;
1785 ba = avctx->block_align;
1786 tag = avctx->codec_tag;
1787 bps = av_get_exact_bits_per_sample(avctx->codec_id);
1788
1789 /* codecs with an exact constant bits per sample */
1790 if (bps > 0 && ch > 0 && frame_bytes > 0)
1791 return (frame_bytes * 8) / (bps * ch);
1792 bps = avctx->bits_per_coded_sample;
1793
1794 /* codecs with a fixed packet duration */
1795 switch (id) {
36ef5369
AK
1796 case AV_CODEC_ID_ADPCM_ADX: return 32;
1797 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1798 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1799 case AV_CODEC_ID_AMR_NB:
1800 case AV_CODEC_ID_GSM:
1801 case AV_CODEC_ID_QCELP:
1802 case AV_CODEC_ID_RA_144:
1803 case AV_CODEC_ID_RA_288: return 160;
1804 case AV_CODEC_ID_IMC: return 256;
1805 case AV_CODEC_ID_AMR_WB:
1806 case AV_CODEC_ID_GSM_MS: return 320;
1807 case AV_CODEC_ID_MP1: return 384;
1808 case AV_CODEC_ID_ATRAC1: return 512;
1809 case AV_CODEC_ID_ATRAC3: return 1024;
1810 case AV_CODEC_ID_MP2:
1811 case AV_CODEC_ID_MUSEPACK7: return 1152;
1812 case AV_CODEC_ID_AC3: return 1536;
9524cf79
JR
1813 }
1814
1815 if (sr > 0) {
1816 /* calc from sample rate */
36ef5369 1817 if (id == AV_CODEC_ID_TTA)
9524cf79
JR
1818 return 256 * sr / 245;
1819
1820 if (ch > 0) {
1821 /* calc from sample rate and channels */
36ef5369 1822 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
9524cf79
JR
1823 return (480 << (sr / 22050)) / ch;
1824 }
1825 }
1826
1827 if (ba > 0) {
1828 /* calc from block_align */
36ef5369 1829 if (id == AV_CODEC_ID_SIPR) {
9524cf79
JR
1830 switch (ba) {
1831 case 20: return 160;
1832 case 19: return 144;
1833 case 29: return 288;
1834 case 37: return 480;
1835 }
36ef5369 1836 } else if (id == AV_CODEC_ID_ILBC) {
3641b048
MS
1837 switch (ba) {
1838 case 38: return 160;
1839 case 50: return 240;
1840 }
9524cf79
JR
1841 }
1842 }
1843
1844 if (frame_bytes > 0) {
1845 /* calc from frame_bytes only */
36ef5369 1846 if (id == AV_CODEC_ID_TRUESPEECH)
9524cf79 1847 return 240 * (frame_bytes / 32);
36ef5369 1848 if (id == AV_CODEC_ID_NELLYMOSER)
9524cf79
JR
1849 return 256 * (frame_bytes / 64);
1850
1851 if (bps > 0) {
1852 /* calc from frame_bytes and bits_per_coded_sample */
36ef5369 1853 if (id == AV_CODEC_ID_ADPCM_G726)
9524cf79
JR
1854 return frame_bytes * 8 / bps;
1855 }
1856
1857 if (ch > 0) {
1858 /* calc from frame_bytes and channels */
1859 switch (id) {
36ef5369
AK
1860 case AV_CODEC_ID_ADPCM_4XM:
1861 case AV_CODEC_ID_ADPCM_IMA_ISS:
9524cf79 1862 return (frame_bytes - 4 * ch) * 2 / ch;
36ef5369 1863 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
9524cf79 1864 return (frame_bytes - 4) * 2 / ch;
36ef5369 1865 case AV_CODEC_ID_ADPCM_IMA_AMV:
9524cf79 1866 return (frame_bytes - 8) * 2 / ch;
36ef5369 1867 case AV_CODEC_ID_ADPCM_XA:
9524cf79 1868 return (frame_bytes / 128) * 224 / ch;
36ef5369 1869 case AV_CODEC_ID_INTERPLAY_DPCM:
9524cf79 1870 return (frame_bytes - 6 - ch) / ch;
36ef5369 1871 case AV_CODEC_ID_ROQ_DPCM:
9524cf79 1872 return (frame_bytes - 8) / ch;
36ef5369 1873 case AV_CODEC_ID_XAN_DPCM:
9524cf79 1874 return (frame_bytes - 2 * ch) / ch;
36ef5369 1875 case AV_CODEC_ID_MACE3:
9524cf79 1876 return 3 * frame_bytes / ch;
36ef5369 1877 case AV_CODEC_ID_MACE6:
9524cf79 1878 return 6 * frame_bytes / ch;
36ef5369 1879 case AV_CODEC_ID_PCM_LXF:
9524cf79
JR
1880 return 2 * (frame_bytes / (5 * ch));
1881 }
1882
1883 if (tag) {
1884 /* calc from frame_bytes, channels, and codec_tag */
36ef5369 1885 if (id == AV_CODEC_ID_SOL_DPCM) {
9524cf79
JR
1886 if (tag == 3)
1887 return frame_bytes / ch;
1888 else
1889 return frame_bytes * 2 / ch;
1890 }
1891 }
1892
1893 if (ba > 0) {
1894 /* calc from frame_bytes, channels, and block_align */
1895 int blocks = frame_bytes / ba;
1896 switch (avctx->codec_id) {
36ef5369 1897 case AV_CODEC_ID_ADPCM_IMA_WAV:
9524cf79 1898 return blocks * (1 + (ba - 4 * ch) / (4 * ch) * 8);
36ef5369 1899 case AV_CODEC_ID_ADPCM_IMA_DK3:
c346f630 1900 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
36ef5369 1901 case AV_CODEC_ID_ADPCM_IMA_DK4:
9524cf79 1902 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
36ef5369 1903 case AV_CODEC_ID_ADPCM_MS:
9524cf79
JR
1904 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1905 }
1906 }
1907
1908 if (bps > 0) {
1909 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1910 switch (avctx->codec_id) {
36ef5369 1911 case AV_CODEC_ID_PCM_DVD:
9524cf79 1912 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
36ef5369 1913 case AV_CODEC_ID_PCM_BLURAY:
9524cf79 1914 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
36ef5369 1915 case AV_CODEC_ID_S302M:
9524cf79
JR
1916 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1917 }
1918 }
1919 }
1920 }
1921
1922 return 0;
1923}
1924
b250f9c6 1925#if !HAVE_THREADS
ba9ef8d0 1926int ff_thread_init(AVCodecContext *s){
ca8ad847
MN
1927 return -1;
1928}
1929#endif
ad2b531d
MR
1930
1931unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1932{
1933 unsigned int n = 0;
1934
1935 while(v >= 0xff) {
1936 *s++ = 0xff;
1937 v -= 0xff;
1938 n++;
1939 }
1940 *s = v;
1941 n++;
1942 return n;
1943}
1005f542 1944
c46eeae2
MN
1945int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
1946 int i;
1947 for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
1948 return i;
1949}
1950
ce863d7f 1951void av_log_missing_feature(void *avc, const char *feature, int want_sample)
ea779d91 1952{
6001dad6 1953 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your Libav "
db323491 1954 "version to the newest one from Git. If the problem still "
ea779d91 1955 "occurs, it means that your file has a feature which has not "
3fd3632f 1956 "been implemented.\n", feature);
ea779d91 1957 if(want_sample)
ce863d7f 1958 av_log_ask_for_sample(avc, NULL);
0ba39dd1
KG
1959}
1960
44f566b7 1961void av_log_ask_for_sample(void *avc, const char *msg, ...)
0ba39dd1 1962{
44f566b7
DB
1963 va_list argument_list;
1964
1965 va_start(argument_list, msg);
1966
0ba39dd1 1967 if (msg)
44f566b7 1968 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
0ba39dd1 1969 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
f0a41afd 1970 "of this file to ftp://upload.libav.org/incoming/ "
21de9204 1971 "and contact the libav-devel mailing list.\n");
44f566b7
DB
1972
1973 va_end(argument_list);
ea779d91 1974}
c895618b
MN
1975
1976static AVHWAccel *first_hwaccel = NULL;
1977
1978void av_register_hwaccel(AVHWAccel *hwaccel)
1979{
1980 AVHWAccel **p = &first_hwaccel;
1981 while (*p)
1982 p = &(*p)->next;
1983 *p = hwaccel;
1984 hwaccel->next = NULL;
1985}
414d9d7f
MN
1986
1987AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
1988{
1989 return hwaccel ? hwaccel->next : first_hwaccel;
1990}
6059f13c 1991
36ef5369 1992AVHWAccel *ff_find_hwaccel(enum AVCodecID codec_id, enum PixelFormat pix_fmt)
6059f13c
MN
1993{
1994 AVHWAccel *hwaccel=NULL;
1995
1996 while((hwaccel= av_hwaccel_next(hwaccel))){
1997 if ( hwaccel->id == codec_id
1998 && hwaccel->pix_fmt == pix_fmt)
1999 return hwaccel;
2000 }
2001 return NULL;
2002}
f988ce6c
2003
2004int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
2005{
2006 if (ff_lockmgr_cb) {
2007 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
2008 return -1;
2d1b6fb7
MS
2009 if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY))
2010 return -1;
f988ce6c
2011 }
2012
2013 ff_lockmgr_cb = cb;
2014
2015 if (ff_lockmgr_cb) {
2016 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
2017 return -1;
2d1b6fb7
MS
2018 if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE))
2019 return -1;
2020 }
2021 return 0;
2022}
2023
2024int avpriv_lock_avformat(void)
2025{
2026 if (ff_lockmgr_cb) {
2027 if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
2028 return -1;
2029 }
2030 return 0;
2031}
2032
2033int avpriv_unlock_avformat(void)
2034{
2035 if (ff_lockmgr_cb) {
2036 if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
2037 return -1;
f988ce6c
2038 }
2039 return 0;
2040}
603a5f04 2041
0842d589 2042unsigned int avpriv_toupper4(unsigned int x)
603a5f04
FL
2043{
2044 return toupper( x &0xFF)
2045 + (toupper((x>>8 )&0xFF)<<8 )
2046 + (toupper((x>>16)&0xFF)<<16)
2047 + (toupper((x>>24)&0xFF)<<24);
2048}
37b00b47 2049
27237d52 2050#if !HAVE_THREADS
37b00b47
AS
2051
2052int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
2053{
2054 f->owner = avctx;
2055 return avctx->get_buffer(avctx, f);
2056}
2057
2058void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
2059{
2060 f->owner->release_buffer(f->owner, f);
2061}
2062
2063void ff_thread_finish_setup(AVCodecContext *avctx)
2064{
2065}
2066
2067void ff_thread_report_progress(AVFrame *f, int progress, int field)
2068{
2069}
2070
2071void ff_thread_await_progress(AVFrame *f, int progress, int field)
2072{
2073}
2074
2075#endif
65af48b5 2076
36ef5369 2077enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
bca06e77 2078{
36ef5369 2079 if (codec_id <= AV_CODEC_ID_NONE)
bca06e77 2080 return AVMEDIA_TYPE_UNKNOWN;
36ef5369 2081 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
bca06e77 2082 return AVMEDIA_TYPE_VIDEO;
36ef5369 2083 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
bca06e77 2084 return AVMEDIA_TYPE_AUDIO;
36ef5369 2085 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
bca06e77
AK
2086 return AVMEDIA_TYPE_SUBTITLE;
2087
2088 return AVMEDIA_TYPE_UNKNOWN;
2089}
af08d9ae
AK
2090
2091int avcodec_is_open(AVCodecContext *s)
2092{
2093 return !!s->internal;
2094}