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ffmpeg / libavcodec / utils.c @ 043d2ff2

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1 de6d9b64 Fabrice Bellard
/*
2
 * utils for libavcodec
3 406792e7 Diego Biurrun
 * Copyright (c) 2001 Fabrice Bellard
4 8f2ab833 Michael Niedermayer
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 de6d9b64 Fabrice Bellard
 *
6 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
7
 *
8
 * FFmpeg is free software; you can redistribute it and/or
9 ff4ec49e Fabrice Bellard
 * modify it under the terms of the GNU Lesser General Public
10
 * License as published by the Free Software Foundation; either
11 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
12 de6d9b64 Fabrice Bellard
 *
13 b78e7197 Diego Biurrun
 * FFmpeg is distributed in the hope that it will be useful,
14 de6d9b64 Fabrice Bellard
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ff4ec49e Fabrice Bellard
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
 * Lesser General Public License for more details.
17 de6d9b64 Fabrice Bellard
 *
18 ff4ec49e Fabrice Bellard
 * You should have received a copy of the GNU Lesser General Public
19 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
20 5509bffa Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 de6d9b64 Fabrice Bellard
 */
22 115329f1 Diego Biurrun
23 983e3246 Michael Niedermayer
/**
24 ba87f080 Diego Biurrun
 * @file
25 983e3246 Michael Niedermayer
 * utils.
26
 */
27 115329f1 Diego Biurrun
28 7fb94406 Diego Biurrun
#include "libavutil/avstring.h"
29 245976da Diego Biurrun
#include "libavutil/integer.h"
30
#include "libavutil/crc.h"
31 eb285cfe Reimar Döffinger
#include "libavutil/pixdesc.h"
32 63e8d976 Stefano Sabatini
#include "libavcore/audioconvert.h"
33 05236ed7 Stefano Sabatini
#include "libavcore/imgutils.h"
34 ed5d30d9 Stefano Sabatini
#include "libavcore/internal.h"
35 ba7d6e79 Stefano Sabatini
#include "libavcore/samplefmt.h"
36 de6d9b64 Fabrice Bellard
#include "avcodec.h"
37 3123dd79 Fabrice Bellard
#include "dsputil.h"
38 6ed04040 Michael Niedermayer
#include "libavutil/opt.h"
39 db7ae7d1 Vitor Sessak
#include "imgconvert.h"
40 b38f008e Alexander Strange
#include "thread.h"
41 9e82a113 Peter Ross
#include "audioconvert.h"
42 0ba39dd1 Kenan Gillet
#include "internal.h"
43 7246177d Aurelien Jacobs
#include <stdlib.h>
44 9b879566 Michel Bardiaux
#include <stdarg.h>
45 4c263142 Michael Niedermayer
#include <limits.h>
46 860a40c8 Michael Niedermayer
#include <float.h>
47 de6d9b64 Fabrice Bellard
48 ddebfb15 Michael Niedermayer
static int volatile entangled_thread_counter=0;
49 291f326a Diego Elio Pettenò
static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
50 f988ce6c Andreas Öman
static void *codec_mutex;
51 ddebfb15 Michael Niedermayer
52 372c3f82 Michael Niedermayer
void *av_fast_realloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
53 8e1e6f31 Fabrice Bellard
{
54 115329f1 Diego Biurrun
    if(min_size < *size)
55 8e1e6f31 Fabrice Bellard
        return ptr;
56 115329f1 Diego Biurrun
57 372c3f82 Michael Niedermayer
    min_size= FFMAX(17*min_size/16 + 32, min_size);
58 8e1e6f31 Fabrice Bellard
59 372c3f82 Michael Niedermayer
    ptr= av_realloc(ptr, min_size);
60 978805b2 Michael Niedermayer
    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
61 372c3f82 Michael Niedermayer
        min_size= 0;
62
63
    *size= min_size;
64 978805b2 Michael Niedermayer
65
    return ptr;
66 8e1e6f31 Fabrice Bellard
}
67
68 372c3f82 Michael Niedermayer
void av_fast_malloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
69 238ef6da Reimar Döffinger
{
70
    void **p = ptr;
71
    if (min_size < *size)
72
        return;
73 372c3f82 Michael Niedermayer
    min_size= FFMAX(17*min_size/16 + 32, min_size);
74 238ef6da Reimar Döffinger
    av_free(*p);
75 372c3f82 Michael Niedermayer
    *p = av_malloc(min_size);
76
    if (!*p) min_size = 0;
77
    *size= min_size;
78 238ef6da Reimar Döffinger
}
79
80 de6d9b64 Fabrice Bellard
/* encoder management */
81 e6df765e Diego Pettenò
static AVCodec *first_avcodec = NULL;
82 de6d9b64 Fabrice Bellard
83 55b9e69a Michael Niedermayer
AVCodec *av_codec_next(AVCodec *c){
84
    if(c) return c->next;
85
    else  return first_avcodec;
86
}
87
88 85662f49 Stefano Sabatini
void avcodec_register(AVCodec *codec)
89 de6d9b64 Fabrice Bellard
{
90
    AVCodec **p;
91 7a961a46 Stefano Sabatini
    avcodec_init();
92 de6d9b64 Fabrice Bellard
    p = &first_avcodec;
93
    while (*p != NULL) p = &(*p)->next;
94 335a761a Stefano Sabatini
    *p = codec;
95
    codec->next = NULL;
96 de6d9b64 Fabrice Bellard
}
97
98 9d385cfe Stefano Sabatini
#if LIBAVCODEC_VERSION_MAJOR < 53
99 85662f49 Stefano Sabatini
void register_avcodec(AVCodec *codec)
100
{
101
    avcodec_register(codec);
102
}
103 9d385cfe Stefano Sabatini
#endif
104 85662f49 Stefano Sabatini
105 0fb49b59 Bobby Bingham
unsigned avcodec_get_edge_width(void)
106
{
107
    return EDGE_WIDTH;
108
}
109
110 21adafec Michael Niedermayer
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
111
    s->coded_width = width;
112
    s->coded_height= height;
113
    s->width = -((-width )>>s->lowres);
114
    s->height= -((-height)>>s->lowres);
115
}
116
117 d90cf87b Michael Niedermayer
typedef struct InternalBuffer{
118 1e491e29 Michael Niedermayer
    int last_pic_num;
119 d90cf87b Michael Niedermayer
    uint8_t *base[4];
120 1e491e29 Michael Niedermayer
    uint8_t *data[4];
121 237e4938 Michael Niedermayer
    int linesize[4];
122 0701006e Michael Niedermayer
    int width, height;
123
    enum PixelFormat pix_fmt;
124 d90cf87b Michael Niedermayer
}InternalBuffer;
125
126
#define INTERNAL_BUFFER_SIZE 32
127 1e491e29 Michael Niedermayer
128 eb285cfe Reimar Döffinger
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]){
129 115329f1 Diego Biurrun
    int w_align= 1;
130
    int h_align= 1;
131
132 f0bbfc4a Michael Niedermayer
    switch(s->pix_fmt){
133
    case PIX_FMT_YUV420P:
134 71e445fc Diego Biurrun
    case PIX_FMT_YUYV422:
135 ebb177dd Todd Kirby
    case PIX_FMT_UYVY422:
136 f0bbfc4a Michael Niedermayer
    case PIX_FMT_YUV422P:
137 98c82d69 Michael Niedermayer
    case PIX_FMT_YUV440P:
138 f0bbfc4a Michael Niedermayer
    case PIX_FMT_YUV444P:
139
    case PIX_FMT_GRAY8:
140 34380af0 Kostya Shishkov
    case PIX_FMT_GRAY16BE:
141
    case PIX_FMT_GRAY16LE:
142 f0bbfc4a Michael Niedermayer
    case PIX_FMT_YUVJ420P:
143
    case PIX_FMT_YUVJ422P:
144 98c82d69 Michael Niedermayer
    case PIX_FMT_YUVJ440P:
145 f0bbfc4a Michael Niedermayer
    case PIX_FMT_YUVJ444P:
146 b70335a2 Aurelien Jacobs
    case PIX_FMT_YUVA420P:
147 f0bbfc4a Michael Niedermayer
        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
148
        h_align= 16;
149 00d1e96b Reimar Döffinger
        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)
150 c81185a1 Michael Niedermayer
            h_align= 32; // interlaced is rounded up to 2 MBs
151 f0bbfc4a Michael Niedermayer
        break;
152
    case PIX_FMT_YUV411P:
153 71e445fc Diego Biurrun
    case PIX_FMT_UYYVYY411:
154 f0bbfc4a Michael Niedermayer
        w_align=32;
155
        h_align=8;
156
        break;
157
    case PIX_FMT_YUV410P:
158
        if(s->codec_id == CODEC_ID_SVQ1){
159
            w_align=64;
160
            h_align=64;
161
        }
162 d99fbbf4 Roberto Togni
    case PIX_FMT_RGB555:
163
        if(s->codec_id == CODEC_ID_RPZA){
164
            w_align=4;
165
            h_align=4;
166
        }
167
    case PIX_FMT_PAL8:
168 6337178b Michael Niedermayer
    case PIX_FMT_BGR8:
169
    case PIX_FMT_RGB8:
170 d99fbbf4 Roberto Togni
        if(s->codec_id == CODEC_ID_SMC){
171
            w_align=4;
172
            h_align=4;
173
        }
174 f0bbfc4a Michael Niedermayer
        break;
175 c31b8121 Roberto Togni
    case PIX_FMT_BGR24:
176
        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
177
            w_align=4;
178
            h_align=4;
179
        }
180
        break;
181 f0bbfc4a Michael Niedermayer
    default:
182
        w_align= 1;
183
        h_align= 1;
184
        break;
185
    }
186
187 ef516f73 David Conrad
    *width = FFALIGN(*width , w_align);
188
    *height= FFALIGN(*height, h_align);
189 ba68d9d3 Anatoly Nenashev
    if(s->codec_id == CODEC_ID_H264 || s->lowres)
190 ae4ffe9f Michael Niedermayer
        *height+=2; // some of the optimized chroma MC reads one line too much
191 ba68d9d3 Anatoly Nenashev
                    // which is also done in mpeg decoders with lowres > 0
192 eb285cfe Reimar Döffinger
193
    linesize_align[0] =
194
    linesize_align[1] =
195
    linesize_align[2] =
196
    linesize_align[3] = STRIDE_ALIGN;
197
//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
198
//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
199
//picture size unneccessarily in some cases. The solution here is not
200
//pretty and better ideas are welcome!
201
#if HAVE_MMX
202
    if(s->codec_id == CODEC_ID_SVQ1 || s->codec_id == CODEC_ID_VP5 ||
203
       s->codec_id == CODEC_ID_VP6 || s->codec_id == CODEC_ID_VP6F ||
204
       s->codec_id == CODEC_ID_VP6A) {
205
        linesize_align[0] =
206
        linesize_align[1] =
207
        linesize_align[2] = 16;
208
    }
209
#endif
210
}
211
212
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
213
    int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
214
    int linesize_align[4];
215
    int align;
216
    avcodec_align_dimensions2(s, width, height, linesize_align);
217
    align = FFMAX(linesize_align[0], linesize_align[3]);
218
    linesize_align[1] <<= chroma_shift;
219
    linesize_align[2] <<= chroma_shift;
220
    align = FFMAX3(align, linesize_align[1], linesize_align[2]);
221
    *width=FFALIGN(*width, align);
222 f0bbfc4a Michael Niedermayer
}
223
224 bf176f58 Stefano Sabatini
#if LIBAVCODEC_VERSION_MAJOR < 53
225 0ecca7a4 Michael Niedermayer
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
226 e16f217c Stefano Sabatini
    return av_image_check_size(w, h, 0, av_log_ctx);
227 0ecca7a4 Michael Niedermayer
}
228 bf176f58 Stefano Sabatini
#endif
229 0ecca7a4 Michael Niedermayer
230 492cd3a9 Michael Niedermayer
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
231 1e491e29 Michael Niedermayer
    int i;
232 f0bbfc4a Michael Niedermayer
    int w= s->width;
233
    int h= s->height;
234 d90cf87b Michael Niedermayer
    InternalBuffer *buf;
235 237e4938 Michael Niedermayer
    int *picture_number;
236 0ecca7a4 Michael Niedermayer
237 65d999d6 Michel Bardiaux
    if(pic->data[0]!=NULL) {
238
        av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
239
        return -1;
240
    }
241
    if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
242
        av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
243
        return -1;
244
    }
245 1e491e29 Michael Niedermayer
246 e16f217c Stefano Sabatini
    if(av_image_check_size(w, h, 0, s))
247 0ecca7a4 Michael Niedermayer
        return -1;
248
249 d90cf87b Michael Niedermayer
    if(s->internal_buffer==NULL){
250 6ebc89ac Michael Niedermayer
        s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
251 d90cf87b Michael Niedermayer
    }
252
#if 0
253
    s->internal_buffer= av_fast_realloc(
254 115329f1 Diego Biurrun
        s->internal_buffer,
255
        &s->internal_buffer_size,
256 d90cf87b Michael Niedermayer
        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
257
        );
258
#endif
259 115329f1 Diego Biurrun
260 d90cf87b Michael Niedermayer
    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
261 6ebc89ac Michael Niedermayer
    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
262 237e4938 Michael Niedermayer
    (*picture_number)++;
263 115329f1 Diego Biurrun
264 0701006e Michael Niedermayer
    if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
265 b38f008e Alexander Strange
        if(s->active_thread_type&FF_THREAD_FRAME) {
266
            av_log_missing_feature(s, "Width/height changing with frame threads is", 0);
267
            return -1;
268
        }
269
270 0701006e Michael Niedermayer
        for(i=0; i<4; i++){
271
            av_freep(&buf->base[i]);
272
            buf->data[i]= NULL;
273
        }
274
    }
275
276 d90cf87b Michael Niedermayer
    if(buf->base[0]){
277 237e4938 Michael Niedermayer
        pic->age= *picture_number - buf->last_pic_num;
278
        buf->last_pic_num= *picture_number;
279 1e491e29 Michael Niedermayer
    }else{
280 f0bbfc4a Michael Niedermayer
        int h_chroma_shift, v_chroma_shift;
281 db7ae7d1 Vitor Sessak
        int size[4] = {0};
282
        int tmpsize;
283 c9d6e847 Reimar Döffinger
        int unaligned;
284 c7622f9a Michael Niedermayer
        AVPicture picture;
285 503bc402 Michael Niedermayer
        int stride_align[4];
286 c7622f9a Michael Niedermayer
287 1e491e29 Michael Niedermayer
        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
288 f0bbfc4a Michael Niedermayer
289 eb285cfe Reimar Döffinger
        avcodec_align_dimensions2(s, &w, &h, stride_align);
290 115329f1 Diego Biurrun
291 1e491e29 Michael Niedermayer
        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
292
            w+= EDGE_WIDTH*2;
293
            h+= EDGE_WIDTH*2;
294
        }
295 5b67307a Loren Merritt
296 c9d6e847 Reimar Döffinger
        do {
297
            // NOTE: do not align linesizes individually, this breaks e.g. assumptions
298
            // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
299 9d2e0ad8 Stefano Sabatini
            av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
300 c9d6e847 Reimar Döffinger
            // increase alignment of w for next try (rhs gives the lowest bit set in w)
301
            w += w & ~(w-1);
302 db7ae7d1 Vitor Sessak
303 c9d6e847 Reimar Döffinger
            unaligned = 0;
304 45bae968 Reimar Döffinger
            for (i=0; i<4; i++){
305 c9d6e847 Reimar Döffinger
                unaligned |= picture.linesize[i] % stride_align[i];
306 45bae968 Reimar Döffinger
            }
307 c9d6e847 Reimar Döffinger
        } while (unaligned);
308 db7ae7d1 Vitor Sessak
309 9d2e0ad8 Stefano Sabatini
        tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
310 f8c96d01 Reimar Döffinger
        if (tmpsize < 0)
311
            return -1;
312 db7ae7d1 Vitor Sessak
313
        for (i=0; i<3 && picture.data[i+1]; i++)
314
            size[i] = picture.data[i+1] - picture.data[i];
315 cf73e32a Vitor Sessak
        size[i] = tmpsize - (picture.data[i] - picture.data[0]);
316 c7622f9a Michael Niedermayer
317 d90cf87b Michael Niedermayer
        buf->last_pic_num= -256*256*256*64;
318 c7622f9a Michael Niedermayer
        memset(buf->base, 0, sizeof(buf->base));
319
        memset(buf->data, 0, sizeof(buf->data));
320 1e491e29 Michael Niedermayer
321 b70335a2 Aurelien Jacobs
        for(i=0; i<4 && size[i]; i++){
322 2c19981a Michael Niedermayer
            const int h_shift= i==0 ? 0 : h_chroma_shift;
323
            const int v_shift= i==0 ? 0 : v_chroma_shift;
324 1e491e29 Michael Niedermayer
325 c7622f9a Michael Niedermayer
            buf->linesize[i]= picture.linesize[i];
326 1e491e29 Michael Niedermayer
327 c7622f9a Michael Niedermayer
            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
328 d90cf87b Michael Niedermayer
            if(buf->base[i]==NULL) return -1;
329 c7622f9a Michael Niedermayer
            memset(buf->base[i], 128, size[i]);
330
331 3491a9b2 Jai Menon
            // no edge if EDGE EMU or not planar YUV
332 6337178b Michael Niedermayer
            if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
333 d90cf87b Michael Niedermayer
                buf->data[i] = buf->base[i];
334 1e491e29 Michael Niedermayer
            else
335 ef516f73 David Conrad
                buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
336 1e491e29 Michael Niedermayer
        }
337 6337178b Michael Niedermayer
        if(size[1] && !size[2])
338 ed5d30d9 Stefano Sabatini
            ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
339 0701006e Michael Niedermayer
        buf->width  = s->width;
340
        buf->height = s->height;
341
        buf->pix_fmt= s->pix_fmt;
342 1e491e29 Michael Niedermayer
        pic->age= 256*256*256*64;
343
    }
344 237e4938 Michael Niedermayer
    pic->type= FF_BUFFER_TYPE_INTERNAL;
345 1e491e29 Michael Niedermayer
346 d90cf87b Michael Niedermayer
    for(i=0; i<4; i++){
347
        pic->base[i]= buf->base[i];
348
        pic->data[i]= buf->data[i];
349 237e4938 Michael Niedermayer
        pic->linesize[i]= buf->linesize[i];
350 d90cf87b Michael Niedermayer
    }
351
    s->internal_buffer_count++;
352
353 393cbb96 Michael Niedermayer
    if(s->pkt) pic->pkt_pts= s->pkt->pts;
354
    else       pic->pkt_pts= AV_NOPTS_VALUE;
355 79de84f2 Michael Niedermayer
    pic->reordered_opaque= s->reordered_opaque;
356
357 385c820b Alexander Strange
    if(s->debug&FF_DEBUG_BUFFERS)
358
        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
359
360 1e491e29 Michael Niedermayer
    return 0;
361
}
362
363 492cd3a9 Michael Niedermayer
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
364 1e491e29 Michael Niedermayer
    int i;
365 6829ac8d Aurelien Jacobs
    InternalBuffer *buf, *last;
366 d90cf87b Michael Niedermayer
367 4e00e76b Michael Niedermayer
    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
368 59c673d5 Michael Niedermayer
    assert(s->internal_buffer_count);
369 d90cf87b Michael Niedermayer
370 b1609412 Fabrice Bellard
    buf = NULL; /* avoids warning */
371 d90cf87b Michael Niedermayer
    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
372
        buf= &((InternalBuffer*)s->internal_buffer)[i];
373
        if(buf->data[0] == pic->data[0])
374
            break;
375
    }
376
    assert(i < s->internal_buffer_count);
377
    s->internal_buffer_count--;
378
    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
379
380 6829ac8d Aurelien Jacobs
    FFSWAP(InternalBuffer, *buf, *last);
381 d90cf87b Michael Niedermayer
382 b70335a2 Aurelien Jacobs
    for(i=0; i<4; i++){
383 1e491e29 Michael Niedermayer
        pic->data[i]=NULL;
384 d90cf87b Michael Niedermayer
//        pic->base[i]=NULL;
385
    }
386 1e491e29 Michael Niedermayer
//printf("R%X\n", pic->opaque);
387 385c820b Alexander Strange
388
    if(s->debug&FF_DEBUG_BUFFERS)
389
        av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
390 1e491e29 Michael Niedermayer
}
391
392 e1c2a5a0 Roberto Togni
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
393
    AVFrame temp_pic;
394
    int i;
395
396
    /* If no picture return a new buffer */
397
    if(pic->data[0] == NULL) {
398
        /* We will copy from buffer, so must be readable */
399
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
400
        return s->get_buffer(s, pic);
401
    }
402
403
    /* If internal buffer type return the same buffer */
404 b8af4fe9 Michael Niedermayer
    if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
405 cf96cce7 Nicolas George
        if(s->pkt) pic->pkt_pts= s->pkt->pts;
406
        else       pic->pkt_pts= AV_NOPTS_VALUE;
407 b8af4fe9 Michael Niedermayer
        pic->reordered_opaque= s->reordered_opaque;
408 e1c2a5a0 Roberto Togni
        return 0;
409 b8af4fe9 Michael Niedermayer
    }
410 e1c2a5a0 Roberto Togni
411
    /*
412
     * Not internal type and reget_buffer not overridden, emulate cr buffer
413
     */
414
    temp_pic = *pic;
415
    for(i = 0; i < 4; i++)
416
        pic->data[i] = pic->base[i] = NULL;
417
    pic->opaque = NULL;
418
    /* Allocate new frame */
419
    if (s->get_buffer(s, pic))
420
        return -1;
421
    /* Copy image data from old buffer to new buffer */
422 636d6a4a Panagiotis Issaris
    av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
423 e1c2a5a0 Roberto Togni
             s->height);
424
    s->release_buffer(s, &temp_pic); // Release old frame
425
    return 0;
426
}
427
428 3a84713a Roman Shaposhnik
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
429 9c3d33d6 Michael Niedermayer
    int i;
430
431
    for(i=0; i<count; i++){
432 3a84713a Roman Shaposhnik
        int r= func(c, (char*)arg + i*size);
433 9c3d33d6 Michael Niedermayer
        if(ret) ret[i]= r;
434
    }
435
    return 0;
436
}
437
438 8d23a86f Reimar Döffinger
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
439
    int i;
440
441
    for(i=0; i<count; i++){
442
        int r= func(c, arg, i, 0);
443
        if(ret) ret[i]= r;
444
    }
445
    return 0;
446
}
447
448 c269cf68 Michael Niedermayer
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
449
    while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
450
        ++fmt;
451 a33c7159 Michael Niedermayer
    return fmt[0];
452
}
453
454 9740beff Michael Niedermayer
void avcodec_get_frame_defaults(AVFrame *pic){
455
    memset(pic, 0, sizeof(AVFrame));
456
457 76ad67ca Nicolas George
    pic->pts = pic->best_effort_timestamp = AV_NOPTS_VALUE;
458 c342499d Michael Niedermayer
    pic->key_frame= 1;
459 9740beff Michael Niedermayer
}
460
461 492cd3a9 Michael Niedermayer
AVFrame *avcodec_alloc_frame(void){
462 9740beff Michael Niedermayer
    AVFrame *pic= av_malloc(sizeof(AVFrame));
463 115329f1 Diego Biurrun
464 9740beff Michael Niedermayer
    if(pic==NULL) return NULL;
465 115329f1 Diego Biurrun
466 9740beff Michael Niedermayer
    avcodec_get_frame_defaults(pic);
467 115329f1 Diego Biurrun
468 1e491e29 Michael Niedermayer
    return pic;
469
}
470
471 5e4c7ca2 Ramiro Polla
int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
472 de6d9b64 Fabrice Bellard
{
473 ddebfb15 Michael Niedermayer
    int ret= -1;
474 115329f1 Diego Biurrun
475 f988ce6c Andreas Öman
    /* If there is a user-supplied mutex locking routine, call it. */
476
    if (ff_lockmgr_cb) {
477
        if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
478
            return -1;
479
    }
480
481 ddebfb15 Michael Niedermayer
    entangled_thread_counter++;
482
    if(entangled_thread_counter != 1){
483
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
484
        goto end;
485
    }
486 de6d9b64 Fabrice Bellard
487 9c87b8f7 Reimar Döffinger
    if(avctx->codec || !codec)
488 ddebfb15 Michael Niedermayer
        goto end;
489 09770af8 Michael Niedermayer
490 0edf8a7a Philip Gladstone
    if (codec->priv_data_size > 0) {
491 dc51a72b Michael Niedermayer
      if(!avctx->priv_data){
492 0edf8a7a Philip Gladstone
        avctx->priv_data = av_mallocz(codec->priv_data_size);
493 90f06cea Panagiotis Issaris
        if (!avctx->priv_data) {
494
            ret = AVERROR(ENOMEM);
495 ddebfb15 Michael Niedermayer
            goto end;
496 90f06cea Panagiotis Issaris
        }
497 dc51a72b Michael Niedermayer
        if(codec->priv_class){ //this can be droped once all user apps use   avcodec_get_context_defaults3()
498
            *(AVClass**)avctx->priv_data= codec->priv_class;
499
            av_opt_set_defaults(avctx->priv_data);
500
        }
501
      }
502 0edf8a7a Philip Gladstone
    } else {
503
        avctx->priv_data = NULL;
504
    }
505 21adafec Michael Niedermayer
506
    if(avctx->coded_width && avctx->coded_height)
507
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
508
    else if(avctx->width && avctx->height)
509
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
510
511 82eac2f3 Reimar Döffinger
    if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
512
        && (  av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
513
           || av_image_check_size(avctx->width,       avctx->height,       0, avctx) < 0)) {
514
        av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
515
        avcodec_set_dimensions(avctx, 0, 0);
516
    }
517
518 f19c58b4 Aurelien Jacobs
    /* if the decoder init function was already called previously,
519
       free the already allocated subtitle_header before overwriting it */
520
    if (codec->decode)
521
        av_freep(&avctx->subtitle_header);
522
523 fa77dd63 Peter Ross
#define SANE_NB_CHANNELS 128U
524 82eac2f3 Reimar Döffinger
    if (avctx->channels > SANE_NB_CHANNELS) {
525 7868349a Panagiotis Issaris
        ret = AVERROR(EINVAL);
526 2a9b5c9b Michael Niedermayer
        goto free_and_end;
527 0ecca7a4 Michael Niedermayer
    }
528
529 b5c85991 Michael Niedermayer
    avctx->codec = codec;
530 72415b2a Stefano Sabatini
    if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
531 681c180d Reimar Döffinger
        avctx->codec_id == CODEC_ID_NONE) {
532
        avctx->codec_type = codec->type;
533
        avctx->codec_id   = codec->id;
534
    }
535 e83c716e Aurelien Jacobs
    if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
536
                           && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
537 4c0dda2b Michael Niedermayer
        av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
538 2a9b5c9b Michael Niedermayer
        goto free_and_end;
539 4c0dda2b Michael Niedermayer
    }
540 b5c85991 Michael Niedermayer
    avctx->frame_number = 0;
541 b38f008e Alexander Strange
542
    if (HAVE_THREADS && !avctx->thread_opaque) {
543 043d2ff2 Alexander Strange
        ret = ff_thread_init(avctx, avctx->thread_count);
544 b38f008e Alexander Strange
        if (ret < 0) {
545
            goto free_and_end;
546
        }
547
    }
548
549 527c91e3 Carl Eugen Hoyos
    if (avctx->codec->max_lowres < avctx->lowres) {
550
        av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
551
               avctx->codec->max_lowres);
552
        goto free_and_end;
553
    }
554 0fd0ef79 Carl Eugen Hoyos
555 76ad67ca Nicolas George
    avctx->pts_correction_num_faulty_pts =
556
    avctx->pts_correction_num_faulty_dts = 0;
557
    avctx->pts_correction_last_pts =
558
    avctx->pts_correction_last_dts = INT64_MIN;
559
560 b38f008e Alexander Strange
    if(avctx->codec->init && !(avctx->active_thread_type&FF_THREAD_FRAME)){
561 2de4f9eb Michael Niedermayer
        ret = avctx->codec->init(avctx);
562
        if (ret < 0) {
563 2a9b5c9b Michael Niedermayer
            goto free_and_end;
564 2de4f9eb Michael Niedermayer
        }
565 6e546aaa Michael Niedermayer
    }
566 ddebfb15 Michael Niedermayer
    ret=0;
567
end:
568
    entangled_thread_counter--;
569 f988ce6c Andreas Öman
570
    /* Release any user-supplied mutex. */
571
    if (ff_lockmgr_cb) {
572
        (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
573
    }
574 ddebfb15 Michael Niedermayer
    return ret;
575 2a9b5c9b Michael Niedermayer
free_and_end:
576
    av_freep(&avctx->priv_data);
577
    avctx->codec= NULL;
578
    goto end;
579 de6d9b64 Fabrice Bellard
}
580
581 5e4c7ca2 Ramiro Polla
int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
582 de6d9b64 Fabrice Bellard
                         const short *samples)
583
{
584 0ecca7a4 Michael Niedermayer
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
585 5286d11f Michel Bardiaux
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
586 0ecca7a4 Michael Niedermayer
        return -1;
587
    }
588 6f824977 Michael Niedermayer
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
589 8eb027c8 Baptiste Coudurier
        int ret = avctx->codec->encode(avctx, buf, buf_size, samples);
590 6f824977 Michael Niedermayer
        avctx->frame_number++;
591
        return ret;
592
    }else
593
        return 0;
594 de6d9b64 Fabrice Bellard
}
595
596 5e4c7ca2 Ramiro Polla
int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
597 492cd3a9 Michael Niedermayer
                         const AVFrame *pict)
598 de6d9b64 Fabrice Bellard
{
599 0ecca7a4 Michael Niedermayer
    if(buf_size < FF_MIN_BUFFER_SIZE){
600 5286d11f Michel Bardiaux
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
601 0ecca7a4 Michael Niedermayer
        return -1;
602
    }
603 e16f217c Stefano Sabatini
    if(av_image_check_size(avctx->width, avctx->height, 0, avctx))
604 0ecca7a4 Michael Niedermayer
        return -1;
605 6f824977 Michael Niedermayer
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
606 8eb027c8 Baptiste Coudurier
        int ret = avctx->codec->encode(avctx, buf, buf_size, pict);
607 6f824977 Michael Niedermayer
        avctx->frame_number++;
608 bb628dae Diego Biurrun
        emms_c(); //needed to avoid an emms_c() call before every return;
609 115329f1 Diego Biurrun
610 6f824977 Michael Niedermayer
        return ret;
611
    }else
612
        return 0;
613 de6d9b64 Fabrice Bellard
}
614
615 115329f1 Diego Biurrun
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
616 240c1657 Fabrice Bellard
                            const AVSubtitle *sub)
617
{
618
    int ret;
619 9413db9e Björn Axelsson
    if(sub->start_display_time) {
620
        av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
621
        return -1;
622
    }
623 505aa6c9 Björn Axelsson
    if(sub->num_rects == 0 || !sub->rects)
624
        return -1;
625 8eb027c8 Baptiste Coudurier
    ret = avctx->codec->encode(avctx, buf, buf_size, sub);
626 240c1657 Fabrice Bellard
    avctx->frame_number++;
627
    return ret;
628
}
629
630 76ad67ca Nicolas George
/**
631
 * Attempt to guess proper monotonic timestamps for decoded video frames
632
 * which might have incorrect times. Input timestamps may wrap around, in
633
 * which case the output will as well.
634
 *
635
 * @param pts the pts field of the decoded AVPacket, as passed through
636
 * AVFrame.pkt_pts
637
 * @param dts the dts field of the decoded AVPacket
638
 * @return one of the input values, may be AV_NOPTS_VALUE
639
 */
640
static int64_t guess_correct_pts(AVCodecContext *ctx,
641
                                 int64_t reordered_pts, int64_t dts)
642
{
643
    int64_t pts = AV_NOPTS_VALUE;
644
645
    if (dts != AV_NOPTS_VALUE) {
646
        ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
647
        ctx->pts_correction_last_dts = dts;
648
    }
649
    if (reordered_pts != AV_NOPTS_VALUE) {
650
        ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
651
        ctx->pts_correction_last_pts = reordered_pts;
652
    }
653
    if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
654
       && reordered_pts != AV_NOPTS_VALUE)
655
        pts = reordered_pts;
656
    else
657
        pts = dts;
658
659
    return pts;
660
}
661
662
663 164bc38c Aurelien Jacobs
#if FF_API_VIDEO_OLD
664 5e4c7ca2 Ramiro Polla
int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
665 de6d9b64 Fabrice Bellard
                         int *got_picture_ptr,
666 2efa7fd1 Michael Niedermayer
                         const uint8_t *buf, int buf_size)
667 de6d9b64 Fabrice Bellard
{
668 7a00bbad Thilo Borgmann
    AVPacket avpkt;
669
    av_init_packet(&avpkt);
670
    avpkt.data = buf;
671
    avpkt.size = buf_size;
672 10f9ff9b Reimar Döffinger
    // HACK for CorePNG to decode as normal PNG by default
673
    avpkt.flags = AV_PKT_FLAG_KEY;
674 7a00bbad Thilo Borgmann
675
    return avcodec_decode_video2(avctx, picture, got_picture_ptr, &avpkt);
676
}
677
#endif
678
679
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
680
                         int *got_picture_ptr,
681
                         AVPacket *avpkt)
682
{
683 de6d9b64 Fabrice Bellard
    int ret;
684 115329f1 Diego Biurrun
685 53db1cae Michael Niedermayer
    *got_picture_ptr= 0;
686 e16f217c Stefano Sabatini
    if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
687 0ecca7a4 Michael Niedermayer
        return -1;
688 393cbb96 Michael Niedermayer
689
    avctx->pkt = avpkt;
690
691 b38f008e Alexander Strange
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
692
        if (HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)
693
             ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
694
                                          avpkt);
695
        else {
696
            ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
697
                              avpkt);
698
            picture->pkt_dts= avpkt->dts;
699
        }
700 6bb925f4 Michael Niedermayer
701 bb628dae Diego Biurrun
        emms_c(); //needed to avoid an emms_c() call before every return;
702 115329f1 Diego Biurrun
703 76ad67ca Nicolas George
        picture->best_effort_timestamp = guess_correct_pts(avctx,
704
                                                           picture->pkt_pts,
705
                                                           picture->pkt_dts);
706 1919feaf Michael Niedermayer
707 115329f1 Diego Biurrun
        if (*got_picture_ptr)
708 934982c4 Michael Niedermayer
            avctx->frame_number++;
709
    }else
710
        ret= 0;
711
712 de6d9b64 Fabrice Bellard
    return ret;
713
}
714
715 a377cfa6 Aurelien Jacobs
#if FF_API_AUDIO_OLD
716 5e4c7ca2 Ramiro Polla
int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
717 de6d9b64 Fabrice Bellard
                         int *frame_size_ptr,
718 2efa7fd1 Michael Niedermayer
                         const uint8_t *buf, int buf_size)
719 de6d9b64 Fabrice Bellard
{
720 7a00bbad Thilo Borgmann
    AVPacket avpkt;
721
    av_init_packet(&avpkt);
722
    avpkt.data = buf;
723
    avpkt.size = buf_size;
724
725
    return avcodec_decode_audio3(avctx, samples, frame_size_ptr, &avpkt);
726
}
727
#endif
728
729
int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
730
                         int *frame_size_ptr,
731
                         AVPacket *avpkt)
732
{
733 de6d9b64 Fabrice Bellard
    int ret;
734
735 393cbb96 Michael Niedermayer
    avctx->pkt = avpkt;
736
737 7a00bbad Thilo Borgmann
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
738 9c856d62 Michael Niedermayer
        //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
739
        if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
740
            av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
741
            return -1;
742
        }
743
        if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
744 81fc2f37 Kostya Shishkov
        *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
745 9c856d62 Michael Niedermayer
            av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
746
            return -1;
747
        }
748
749 7a00bbad Thilo Borgmann
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr, avpkt);
750 fec9ccb7 Michael Niedermayer
        avctx->frame_number++;
751 ac66834c Michael Niedermayer
    }else{
752 fec9ccb7 Michael Niedermayer
        ret= 0;
753 ac66834c Michael Niedermayer
        *frame_size_ptr=0;
754
    }
755 de6d9b64 Fabrice Bellard
    return ret;
756
}
757
758 448ce925 Aurelien Jacobs
#if FF_API_SUBTITLE_OLD
759 240c1657 Fabrice Bellard
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
760
                            int *got_sub_ptr,
761
                            const uint8_t *buf, int buf_size)
762
{
763 7a00bbad Thilo Borgmann
    AVPacket avpkt;
764
    av_init_packet(&avpkt);
765
    avpkt.data = buf;
766
    avpkt.size = buf_size;
767
768
    return avcodec_decode_subtitle2(avctx, sub, got_sub_ptr, &avpkt);
769
}
770
#endif
771
772
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
773
                            int *got_sub_ptr,
774
                            AVPacket *avpkt)
775
{
776 240c1657 Fabrice Bellard
    int ret;
777
778 393cbb96 Michael Niedermayer
    avctx->pkt = avpkt;
779 240c1657 Fabrice Bellard
    *got_sub_ptr = 0;
780 7a00bbad Thilo Borgmann
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
781 240c1657 Fabrice Bellard
    if (*got_sub_ptr)
782
        avctx->frame_number++;
783
    return ret;
784
}
785
786 e1d7c883 Reimar Döffinger
void avsubtitle_free(AVSubtitle *sub)
787
{
788
    int i;
789
790
    for (i = 0; i < sub->num_rects; i++)
791
    {
792 8b834ac5 Reimar Döffinger
        av_freep(&sub->rects[i]->pict.data[0]);
793
        av_freep(&sub->rects[i]->pict.data[1]);
794
        av_freep(&sub->rects[i]->pict.data[2]);
795
        av_freep(&sub->rects[i]->pict.data[3]);
796
        av_freep(&sub->rects[i]->text);
797
        av_freep(&sub->rects[i]->ass);
798
        av_freep(&sub->rects[i]);
799 e1d7c883 Reimar Döffinger
    }
800
801 8b834ac5 Reimar Döffinger
    av_freep(&sub->rects);
802 e1d7c883 Reimar Döffinger
803
    memset(sub, 0, sizeof(AVSubtitle));
804
}
805
806 0752cd39 Zuxy Meng
av_cold int avcodec_close(AVCodecContext *avctx)
807 de6d9b64 Fabrice Bellard
{
808 f988ce6c Andreas Öman
    /* If there is a user-supplied mutex locking routine, call it. */
809
    if (ff_lockmgr_cb) {
810
        if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
811
            return -1;
812
    }
813
814 ddebfb15 Michael Niedermayer
    entangled_thread_counter++;
815
    if(entangled_thread_counter != 1){
816
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
817
        entangled_thread_counter--;
818
        return -1;
819
    }
820
821 49fb20cb Aurelien Jacobs
    if (HAVE_THREADS && avctx->thread_opaque)
822 043d2ff2 Alexander Strange
        ff_thread_free(avctx);
823 dccda293 Michael Niedermayer
    if (avctx->codec && avctx->codec->close)
824 de6d9b64 Fabrice Bellard
        avctx->codec->close(avctx);
825 eea8c08f Michael Niedermayer
    avcodec_default_free_buffers(avctx);
826 b3ab3199 Reimar Döffinger
    avctx->coded_frame = NULL;
827 3123dd79 Fabrice Bellard
    av_freep(&avctx->priv_data);
828 77a670e7 Craig Thomasson
    if(avctx->codec && avctx->codec->encode)
829 c4f267ab Vitor Sessak
        av_freep(&avctx->extradata);
830 de6d9b64 Fabrice Bellard
    avctx->codec = NULL;
831 b38f008e Alexander Strange
    avctx->active_thread_type = 0;
832 ddebfb15 Michael Niedermayer
    entangled_thread_counter--;
833 f988ce6c Andreas Öman
834
    /* Release any user-supplied mutex. */
835
    if (ff_lockmgr_cb) {
836
        (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
837
    }
838 de6d9b64 Fabrice Bellard
    return 0;
839
}
840
841
AVCodec *avcodec_find_encoder(enum CodecID id)
842
{
843 93ebfeea Janne Grunau
    AVCodec *p, *experimental=NULL;
844 de6d9b64 Fabrice Bellard
    p = first_avcodec;
845
    while (p) {
846 93ebfeea Janne Grunau
        if (p->encode != NULL && p->id == id) {
847
            if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
848
                experimental = p;
849
            } else
850
                return p;
851
        }
852 de6d9b64 Fabrice Bellard
        p = p->next;
853
    }
854 93ebfeea Janne Grunau
    return experimental;
855 de6d9b64 Fabrice Bellard
}
856
857 98f3b098 Arpi
AVCodec *avcodec_find_encoder_by_name(const char *name)
858
{
859
    AVCodec *p;
860 fc228c90 Aurelien Jacobs
    if (!name)
861
        return NULL;
862 98f3b098 Arpi
    p = first_avcodec;
863
    while (p) {
864
        if (p->encode != NULL && strcmp(name,p->name) == 0)
865
            return p;
866
        p = p->next;
867
    }
868
    return NULL;
869
}
870
871 de6d9b64 Fabrice Bellard
AVCodec *avcodec_find_decoder(enum CodecID id)
872
{
873
    AVCodec *p;
874
    p = first_avcodec;
875
    while (p) {
876
        if (p->decode != NULL && p->id == id)
877
            return p;
878
        p = p->next;
879
    }
880
    return NULL;
881
}
882
883
AVCodec *avcodec_find_decoder_by_name(const char *name)
884
{
885
    AVCodec *p;
886 fc228c90 Aurelien Jacobs
    if (!name)
887
        return NULL;
888 de6d9b64 Fabrice Bellard
    p = first_avcodec;
889
    while (p) {
890
        if (p->decode != NULL && strcmp(name,p->name) == 0)
891
            return p;
892
        p = p->next;
893
    }
894
    return NULL;
895
}
896
897 406aa93f Carl Eugen Hoyos
static int get_bit_rate(AVCodecContext *ctx)
898 ce34ff6b Robert Krüger
{
899
    int bit_rate;
900
    int bits_per_sample;
901
902
    switch(ctx->codec_type) {
903 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
904 4563cf24 Stefano Sabatini
    case AVMEDIA_TYPE_DATA:
905
    case AVMEDIA_TYPE_SUBTITLE:
906
    case AVMEDIA_TYPE_ATTACHMENT:
907 ce34ff6b Robert Krüger
        bit_rate = ctx->bit_rate;
908
        break;
909 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
910 ce34ff6b Robert Krüger
        bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
911
        bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
912
        break;
913
    default:
914
        bit_rate = 0;
915
        break;
916
    }
917
    return bit_rate;
918
}
919
920 7e566bbe Stefano Sabatini
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
921
{
922
    int i, len, ret = 0;
923
924
    for (i = 0; i < 4; i++) {
925
        len = snprintf(buf, buf_size,
926
                       isprint(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
927
        buf      += len;
928
        buf_size  = buf_size > len ? buf_size - len : 0;
929
        ret      += len;
930
        codec_tag>>=8;
931
    }
932
    return ret;
933
}
934
935 de6d9b64 Fabrice Bellard
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
936
{
937
    const char *codec_name;
938 2a81f4bd Anssi Hannula
    const char *profile = NULL;
939 de6d9b64 Fabrice Bellard
    AVCodec *p;
940
    char buf1[32];
941 a96b68b7 Fabrice Bellard
    int bitrate;
942 59771f71 Michel Bardiaux
    AVRational display_aspect_ratio;
943 de6d9b64 Fabrice Bellard
944
    if (encode)
945
        p = avcodec_find_encoder(enc->codec_id);
946
    else
947
        p = avcodec_find_decoder(enc->codec_id);
948
949
    if (p) {
950
        codec_name = p->name;
951 2a81f4bd Anssi Hannula
        profile = av_get_profile_name(p, enc->profile);
952 985180a1 Fabrice Bellard
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
953
        /* fake mpeg2 transport stream codec (currently not
954
           registered) */
955
        codec_name = "mpeg2ts";
956 de6d9b64 Fabrice Bellard
    } else if (enc->codec_name[0] != '\0') {
957
        codec_name = enc->codec_name;
958
    } else {
959
        /* output avi tags */
960 ab0b5378 Stefano Sabatini
        char tag_buf[32];
961
        av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
962
        snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag);
963 de6d9b64 Fabrice Bellard
        codec_name = buf1;
964
    }
965
966
    switch(enc->codec_type) {
967 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
968 de6d9b64 Fabrice Bellard
        snprintf(buf, buf_size,
969
                 "Video: %s%s",
970 7d1c3fc1 Michael Niedermayer
                 codec_name, enc->mb_decision ? " (hq)" : "");
971 2a81f4bd Anssi Hannula
        if (profile)
972
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
973
                     " (%s)", profile);
974 82c0c4ba Michael Niedermayer
        if (enc->pix_fmt != PIX_FMT_NONE) {
975 cf087595 Fabrice Bellard
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
976
                     ", %s",
977 9bbffbb1 Fabrice Bellard
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
978 cf087595 Fabrice Bellard
        }
979 de6d9b64 Fabrice Bellard
        if (enc->width) {
980
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
981 21189011 Michael Niedermayer
                     ", %dx%d",
982
                     enc->width, enc->height);
983 7ee4dd02 Baptiste Coudurier
            if (enc->sample_aspect_ratio.num) {
984 cbaf50f8 Baptiste Coudurier
                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
985
                          enc->width*enc->sample_aspect_ratio.num,
986
                          enc->height*enc->sample_aspect_ratio.den,
987
                          1024*1024);
988
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
989
                         " [PAR %d:%d DAR %d:%d]",
990
                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
991
                         display_aspect_ratio.num, display_aspect_ratio.den);
992 7ee4dd02 Baptiste Coudurier
            }
993 a309073b Måns Rullgård
            if(av_log_get_level() >= AV_LOG_DEBUG){
994 9ce6c138 Aurelien Jacobs
                int g= av_gcd(enc->time_base.num, enc->time_base.den);
995 21189011 Michael Niedermayer
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
996
                     ", %d/%d",
997
                     enc->time_base.num/g, enc->time_base.den/g);
998
            }
999 de6d9b64 Fabrice Bellard
        }
1000 4bfad535 Fabrice Bellard
        if (encode) {
1001
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1002
                     ", q=%d-%d", enc->qmin, enc->qmax);
1003
        }
1004 de6d9b64 Fabrice Bellard
        break;
1005 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
1006 de6d9b64 Fabrice Bellard
        snprintf(buf, buf_size,
1007
                 "Audio: %s",
1008
                 codec_name);
1009 2a81f4bd Anssi Hannula
        if (profile)
1010
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1011
                     " (%s)", profile);
1012 de6d9b64 Fabrice Bellard
        if (enc->sample_rate) {
1013
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1014 0d72e7d0 Peter Ross
                     ", %d Hz", enc->sample_rate);
1015 de6d9b64 Fabrice Bellard
        }
1016 0d72e7d0 Peter Ross
        av_strlcat(buf, ", ", buf_size);
1017 63e8d976 Stefano Sabatini
        av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1018 5d6e4c16 Stefano Sabatini
        if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1019 9e82a113 Peter Ross
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1020 ba7d6e79 Stefano Sabatini
                     ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1021 9e82a113 Peter Ross
        }
1022 de6d9b64 Fabrice Bellard
        break;
1023 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_DATA:
1024 985180a1 Fabrice Bellard
        snprintf(buf, buf_size, "Data: %s", codec_name);
1025 240c1657 Fabrice Bellard
        break;
1026 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
1027 240c1657 Fabrice Bellard
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1028 985180a1 Fabrice Bellard
        break;
1029 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_ATTACHMENT:
1030 f8d7c9d3 Evgeniy Stepanov
        snprintf(buf, buf_size, "Attachment: %s", codec_name);
1031
        break;
1032 de6d9b64 Fabrice Bellard
    default:
1033 9fe5a7b8 Michael Niedermayer
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1034
        return;
1035 de6d9b64 Fabrice Bellard
    }
1036 4bfad535 Fabrice Bellard
    if (encode) {
1037
        if (enc->flags & CODEC_FLAG_PASS1)
1038
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1039
                     ", pass 1");
1040
        if (enc->flags & CODEC_FLAG_PASS2)
1041
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1042
                     ", pass 2");
1043
    }
1044 406aa93f Carl Eugen Hoyos
    bitrate = get_bit_rate(enc);
1045 a96b68b7 Fabrice Bellard
    if (bitrate != 0) {
1046 115329f1 Diego Biurrun
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1047 a96b68b7 Fabrice Bellard
                 ", %d kb/s", bitrate / 1000);
1048 de6d9b64 Fabrice Bellard
    }
1049
}
1050
1051 060ec0a8 Anssi Hannula
const char *av_get_profile_name(const AVCodec *codec, int profile)
1052
{
1053
    const AVProfile *p;
1054
    if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1055
        return NULL;
1056
1057
    for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1058
        if (p->profile == profile)
1059
            return p->name;
1060
1061
    return NULL;
1062
}
1063
1064 156e5023 Nick Kurshev
unsigned avcodec_version( void )
1065
{
1066
  return LIBAVCODEC_VERSION_INT;
1067
}
1068 cf087595 Fabrice Bellard
1069 41600690 Stefano Sabatini
const char *avcodec_configuration(void)
1070 c1736936 Diego Biurrun
{
1071
    return FFMPEG_CONFIGURATION;
1072
}
1073
1074 41600690 Stefano Sabatini
const char *avcodec_license(void)
1075 c1736936 Diego Biurrun
{
1076
#define LICENSE_PREFIX "libavcodec license: "
1077
    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1078
}
1079
1080 de6d9b64 Fabrice Bellard
void avcodec_init(void)
1081
{
1082 5e534865 Diego Biurrun
    static int initialized = 0;
1083 0344cd0a Alex Beregszaszi
1084 5e534865 Diego Biurrun
    if (initialized != 0)
1085 bb270c08 Diego Biurrun
        return;
1086 5e534865 Diego Biurrun
    initialized = 1;
1087 0344cd0a Alex Beregszaszi
1088 486497e0 Måns Rullgård
    dsputil_static_init();
1089 de6d9b64 Fabrice Bellard
}
1090
1091 1c2a8c7f Michael Niedermayer
void avcodec_flush_buffers(AVCodecContext *avctx)
1092
{
1093 b38f008e Alexander Strange
    if(HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)
1094
        ff_thread_flush(avctx);
1095 7a06ff14 Michael Niedermayer
    if(avctx->codec->flush)
1096
        avctx->codec->flush(avctx);
1097 1c2a8c7f Michael Niedermayer
}
1098
1099 b100eab8 Michael Niedermayer
void avcodec_default_free_buffers(AVCodecContext *s){
1100 d90cf87b Michael Niedermayer
    int i, j;
1101
1102
    if(s->internal_buffer==NULL) return;
1103 115329f1 Diego Biurrun
1104 ea09f691 Reimar Döffinger
    if (s->internal_buffer_count)
1105
        av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n", s->internal_buffer_count);
1106 d90cf87b Michael Niedermayer
    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1107
        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1108
        for(j=0; j<4; j++){
1109
            av_freep(&buf->base[j]);
1110
            buf->data[j]= NULL;
1111
        }
1112
    }
1113
    av_freep(&s->internal_buffer);
1114 115329f1 Diego Biurrun
1115 d90cf87b Michael Niedermayer
    s->internal_buffer_count=0;
1116
}
1117
1118 d8085ea7 Michael Niedermayer
char av_get_pict_type_char(int pict_type){
1119
    switch(pict_type){
1120 fbd4293d Aurelien Jacobs
    case FF_I_TYPE: return 'I';
1121
    case FF_P_TYPE: return 'P';
1122
    case FF_B_TYPE: return 'B';
1123
    case FF_S_TYPE: return 'S';
1124
    case FF_SI_TYPE:return 'i';
1125
    case FF_SP_TYPE:return 'p';
1126 48d533e6 Aurelien Jacobs
    case FF_BI_TYPE:return 'b';
1127 c06ccb13 Aurelien Jacobs
    default:        return '?';
1128 d8085ea7 Michael Niedermayer
    }
1129
}
1130
1131 ac3e1834 Baptiste Coudurier
int av_get_bits_per_sample(enum CodecID codec_id){
1132
    switch(codec_id){
1133 5da71469 Aurelien Jacobs
    case CODEC_ID_ADPCM_SBPRO_2:
1134 f1b163e0 Aurelien Jacobs
        return 2;
1135 5da71469 Aurelien Jacobs
    case CODEC_ID_ADPCM_SBPRO_3:
1136 f1b163e0 Aurelien Jacobs
        return 3;
1137 5da71469 Aurelien Jacobs
    case CODEC_ID_ADPCM_SBPRO_4:
1138 f1b163e0 Aurelien Jacobs
    case CODEC_ID_ADPCM_CT:
1139 07f2a575 Carl Eugen Hoyos
    case CODEC_ID_ADPCM_IMA_WAV:
1140 9df9b810 Daniel Verkamp
    case CODEC_ID_ADPCM_MS:
1141
    case CODEC_ID_ADPCM_YAMAHA:
1142 f1b163e0 Aurelien Jacobs
        return 4;
1143 ac3e1834 Baptiste Coudurier
    case CODEC_ID_PCM_ALAW:
1144
    case CODEC_ID_PCM_MULAW:
1145
    case CODEC_ID_PCM_S8:
1146
    case CODEC_ID_PCM_U8:
1147 9d49b8ff Peter Ross
    case CODEC_ID_PCM_ZORK:
1148 ac3e1834 Baptiste Coudurier
        return 8;
1149
    case CODEC_ID_PCM_S16BE:
1150
    case CODEC_ID_PCM_S16LE:
1151 725d86bf Aurelien Jacobs
    case CODEC_ID_PCM_S16LE_PLANAR:
1152 ac3e1834 Baptiste Coudurier
    case CODEC_ID_PCM_U16BE:
1153
    case CODEC_ID_PCM_U16LE:
1154
        return 16;
1155
    case CODEC_ID_PCM_S24DAUD:
1156
    case CODEC_ID_PCM_S24BE:
1157
    case CODEC_ID_PCM_S24LE:
1158
    case CODEC_ID_PCM_U24BE:
1159
    case CODEC_ID_PCM_U24LE:
1160
        return 24;
1161
    case CODEC_ID_PCM_S32BE:
1162
    case CODEC_ID_PCM_S32LE:
1163
    case CODEC_ID_PCM_U32BE:
1164
    case CODEC_ID_PCM_U32LE:
1165 aa29709e Peter Ross
    case CODEC_ID_PCM_F32BE:
1166 143a5d6f Peter Ross
    case CODEC_ID_PCM_F32LE:
1167 ac3e1834 Baptiste Coudurier
        return 32;
1168 143a5d6f Peter Ross
    case CODEC_ID_PCM_F64BE:
1169
    case CODEC_ID_PCM_F64LE:
1170
        return 64;
1171 ac3e1834 Baptiste Coudurier
    default:
1172
        return 0;
1173
    }
1174
}
1175
1176 6f84cd12 Stefano Sabatini
#if FF_API_OLD_SAMPLE_FMT
1177 5d6e4c16 Stefano Sabatini
int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt) {
1178 6f84cd12 Stefano Sabatini
    return av_get_bits_per_sample_fmt(sample_fmt);
1179 42c71907 David Conrad
}
1180 6f84cd12 Stefano Sabatini
#endif
1181 42c71907 David Conrad
1182 b250f9c6 Aurelien Jacobs
#if !HAVE_THREADS
1183 043d2ff2 Alexander Strange
int ff_thread_init(AVCodecContext *s, int thread_count){
1184 2e418f5e Stefano Sabatini
    s->thread_count = thread_count;
1185 ca8ad847 Michael Niedermayer
    return -1;
1186
}
1187
#endif
1188 ad2b531d Måns Rullgård
1189
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1190
{
1191
    unsigned int n = 0;
1192
1193
    while(v >= 0xff) {
1194
        *s++ = 0xff;
1195
        v -= 0xff;
1196
        n++;
1197
    }
1198
    *s = v;
1199
    n++;
1200
    return n;
1201
}
1202 1005f542 Corey Hickey
1203 126b638e Stefano Sabatini
#if LIBAVCODEC_VERSION_MAJOR < 53
1204
#include "libavcore/parseutils.h"
1205 26ef3220 Stefano Sabatini
1206
int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1207
{
1208 126b638e Stefano Sabatini
    return av_parse_video_size(width_ptr, height_ptr, str);
1209 26ef3220 Stefano Sabatini
}
1210
1211
int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1212
{
1213 126b638e Stefano Sabatini
    return av_parse_video_rate(frame_rate, arg);
1214 26ef3220 Stefano Sabatini
}
1215 126b638e Stefano Sabatini
#endif
1216 ea779d91 Justin Ruggles
1217 c46eeae2 Michael Niedermayer
int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
1218
    int i;
1219
    for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
1220
    return i;
1221
}
1222
1223 ce863d7f Ronald S. Bultje
void av_log_missing_feature(void *avc, const char *feature, int want_sample)
1224 ea779d91 Justin Ruggles
{
1225
    av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1226 db323491 Janne Grunau
            "version to the newest one from Git. If the problem still "
1227 ea779d91 Justin Ruggles
            "occurs, it means that your file has a feature which has not "
1228
            "been implemented.", feature);
1229
    if(want_sample)
1230 ce863d7f Ronald S. Bultje
        av_log_ask_for_sample(avc, NULL);
1231 0ba39dd1 Kenan Gillet
    else
1232
        av_log(avc, AV_LOG_WARNING, "\n");
1233
}
1234
1235 ce863d7f Ronald S. Bultje
void av_log_ask_for_sample(void *avc, const char *msg)
1236 0ba39dd1 Kenan Gillet
{
1237
    if (msg)
1238
        av_log(avc, AV_LOG_WARNING, "%s ", msg);
1239
    av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
1240
            "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
1241
            "and contact the ffmpeg-devel mailing list.\n");
1242 ea779d91 Justin Ruggles
}
1243 c895618b Michael Niedermayer
1244
static AVHWAccel *first_hwaccel = NULL;
1245
1246
void av_register_hwaccel(AVHWAccel *hwaccel)
1247
{
1248
    AVHWAccel **p = &first_hwaccel;
1249
    while (*p)
1250
        p = &(*p)->next;
1251
    *p = hwaccel;
1252
    hwaccel->next = NULL;
1253
}
1254 414d9d7f Michael Niedermayer
1255
AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
1256
{
1257
    return hwaccel ? hwaccel->next : first_hwaccel;
1258
}
1259 6059f13c Michael Niedermayer
1260
AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt)
1261
{
1262
    AVHWAccel *hwaccel=NULL;
1263
1264
    while((hwaccel= av_hwaccel_next(hwaccel))){
1265
        if (   hwaccel->id      == codec_id
1266
            && hwaccel->pix_fmt == pix_fmt)
1267
            return hwaccel;
1268
    }
1269
    return NULL;
1270
}
1271 f988ce6c Andreas Öman
1272
int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1273
{
1274
    if (ff_lockmgr_cb) {
1275
        if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
1276
            return -1;
1277
    }
1278
1279
    ff_lockmgr_cb = cb;
1280
1281
    if (ff_lockmgr_cb) {
1282
        if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
1283
            return -1;
1284
    }
1285
    return 0;
1286
}
1287 603a5f04 Francesco Lavra
1288
unsigned int ff_toupper4(unsigned int x)
1289
{
1290
    return     toupper( x     &0xFF)
1291
            + (toupper((x>>8 )&0xFF)<<8 )
1292
            + (toupper((x>>16)&0xFF)<<16)
1293
            + (toupper((x>>24)&0xFF)<<24);
1294
}
1295 b38f008e Alexander Strange
1296
#if !HAVE_PTHREADS
1297
1298
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
1299
{
1300
    f->owner = avctx;
1301
    return avctx->get_buffer(avctx, f);
1302
}
1303
1304
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
1305
{
1306
    f->owner->release_buffer(f->owner, f);
1307
}
1308
1309
void ff_thread_finish_setup(AVCodecContext *avctx)
1310
{
1311
}
1312
1313
void ff_thread_report_progress(AVFrame *f, int progress, int field)
1314
{
1315
}
1316
1317
void ff_thread_await_progress(AVFrame *f, int progress, int field)
1318
{
1319
}
1320
1321
#endif
1322 043d2ff2 Alexander Strange
1323
#if LIBAVCODEC_VERSION_MAJOR < 53
1324
1325
int avcodec_thread_init(AVCodecContext *s, int thread_count)
1326
{
1327
    return ff_thread_init(s, thread_count);
1328
}
1329
1330
void avcodec_thread_free(AVCodecContext *s)
1331
{
1332
    return ff_thread_free(s);
1333
}
1334
1335
#endif