GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/utils.c Lines: 940 1286 73.1 %
Date: 2020-08-14 10:39:37 Branches: 667 969 68.8 %

Line Branch Exec Source
1
/*
2
 * utils for libavcodec
3
 * Copyright (c) 2001 Fabrice Bellard
4
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5
 *
6
 * This file is part of FFmpeg.
7
 *
8
 * FFmpeg is free software; you can redistribute it and/or
9
 * modify it under the terms of the GNU Lesser General Public
10
 * License as published by the Free Software Foundation; either
11
 * version 2.1 of the License, or (at your option) any later version.
12
 *
13
 * FFmpeg is distributed in the hope that it will be useful,
14
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
 * Lesser General Public License for more details.
17
 *
18
 * You should have received a copy of the GNU Lesser General Public
19
 * License along with FFmpeg; if not, write to the Free Software
20
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21
 */
22
23
/**
24
 * @file
25
 * utils.
26
 */
27
28
#include "config.h"
29
#include "libavutil/attributes.h"
30
#include "libavutil/avassert.h"
31
#include "libavutil/avstring.h"
32
#include "libavutil/bprint.h"
33
#include "libavutil/channel_layout.h"
34
#include "libavutil/crc.h"
35
#include "libavutil/frame.h"
36
#include "libavutil/hwcontext.h"
37
#include "libavutil/internal.h"
38
#include "libavutil/mathematics.h"
39
#include "libavutil/mem_internal.h"
40
#include "libavutil/pixdesc.h"
41
#include "libavutil/imgutils.h"
42
#include "libavutil/samplefmt.h"
43
#include "libavutil/dict.h"
44
#include "libavutil/thread.h"
45
#include "avcodec.h"
46
#include "decode.h"
47
#include "hwconfig.h"
48
#include "libavutil/opt.h"
49
#include "mpegvideo.h"
50
#include "thread.h"
51
#include "frame_thread_encoder.h"
52
#include "internal.h"
53
#include "put_bits.h"
54
#include "raw.h"
55
#include "bytestream.h"
56
#include "version.h"
57
#include <stdlib.h>
58
#include <stdarg.h>
59
#include <stdatomic.h>
60
#include <limits.h>
61
#include <float.h>
62
#if CONFIG_ICONV
63
# include <iconv.h>
64
#endif
65
66
#include "libavutil/ffversion.h"
67
const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
68
69
static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
70
71
133504
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
72
{
73
133504
    uint8_t **p = ptr;
74
133504
    if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
75
        av_freep(p);
76
        *size = 0;
77
        return;
78
    }
79
133504
    if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
80
105412
        memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
81
}
82
83
485
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
84
{
85
485
    uint8_t **p = ptr;
86
485
    if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
87
        av_freep(p);
88
        *size = 0;
89
        return;
90
    }
91
485
    if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
92
374
        memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
93
}
94
95
5847739
int av_codec_is_encoder(const AVCodec *codec)
96
{
97


5847739
    return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
98
}
99
100
11177482
int av_codec_is_decoder(const AVCodec *codec)
101
{
102

11177482
    return codec && (codec->decode || codec->receive_frame);
103
}
104
105
29225
int ff_set_dimensions(AVCodecContext *s, int width, int height)
106
{
107
29225
    int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
108
109
29225
    if (ret < 0)
110
        width = height = 0;
111
112
29225
    s->coded_width  = width;
113
29225
    s->coded_height = height;
114
29225
    s->width        = AV_CEIL_RSHIFT(width,  s->lowres);
115
29225
    s->height       = AV_CEIL_RSHIFT(height, s->lowres);
116
117
29225
    return ret;
118
}
119
120
2450
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
121
{
122
2450
    int ret = av_image_check_sar(avctx->width, avctx->height, sar);
123
124
2450
    if (ret < 0) {
125
14
        av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
126
               sar.num, sar.den);
127
14
        avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
128
14
        return ret;
129
    } else {
130
2436
        avctx->sample_aspect_ratio = sar;
131
    }
132
2436
    return 0;
133
}
134
135
20526
int ff_side_data_update_matrix_encoding(AVFrame *frame,
136
                                        enum AVMatrixEncoding matrix_encoding)
137
{
138
    AVFrameSideData *side_data;
139
    enum AVMatrixEncoding *data;
140
141
20526
    side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
142
20526
    if (!side_data)
143
20526
        side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
144
                                           sizeof(enum AVMatrixEncoding));
145
146
20526
    if (!side_data)
147
        return AVERROR(ENOMEM);
148
149
20526
    data  = (enum AVMatrixEncoding*)side_data->data;
150
20526
    *data = matrix_encoding;
151
152
20526
    return 0;
153
}
154
155
8443
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
156
                               int linesize_align[AV_NUM_DATA_POINTERS])
157
{
158
    int i;
159
8443
    int w_align = 1;
160
8443
    int h_align = 1;
161
8443
    AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
162
163
8443
    if (desc) {
164
8443
        w_align = 1 << desc->log2_chroma_w;
165
8443
        h_align = 1 << desc->log2_chroma_h;
166
    }
167
168


8443
    switch (s->pix_fmt) {
169
7555
    case AV_PIX_FMT_YUV420P:
170
    case AV_PIX_FMT_YUYV422:
171
    case AV_PIX_FMT_YVYU422:
172
    case AV_PIX_FMT_UYVY422:
173
    case AV_PIX_FMT_YUV422P:
174
    case AV_PIX_FMT_YUV440P:
175
    case AV_PIX_FMT_YUV444P:
176
    case AV_PIX_FMT_GBRP:
177
    case AV_PIX_FMT_GBRAP:
178
    case AV_PIX_FMT_GRAY8:
179
    case AV_PIX_FMT_GRAY16BE:
180
    case AV_PIX_FMT_GRAY16LE:
181
    case AV_PIX_FMT_YUVJ420P:
182
    case AV_PIX_FMT_YUVJ422P:
183
    case AV_PIX_FMT_YUVJ440P:
184
    case AV_PIX_FMT_YUVJ444P:
185
    case AV_PIX_FMT_YUVA420P:
186
    case AV_PIX_FMT_YUVA422P:
187
    case AV_PIX_FMT_YUVA444P:
188
    case AV_PIX_FMT_YUV420P9LE:
189
    case AV_PIX_FMT_YUV420P9BE:
190
    case AV_PIX_FMT_YUV420P10LE:
191
    case AV_PIX_FMT_YUV420P10BE:
192
    case AV_PIX_FMT_YUV420P12LE:
193
    case AV_PIX_FMT_YUV420P12BE:
194
    case AV_PIX_FMT_YUV420P14LE:
195
    case AV_PIX_FMT_YUV420P14BE:
196
    case AV_PIX_FMT_YUV420P16LE:
197
    case AV_PIX_FMT_YUV420P16BE:
198
    case AV_PIX_FMT_YUVA420P9LE:
199
    case AV_PIX_FMT_YUVA420P9BE:
200
    case AV_PIX_FMT_YUVA420P10LE:
201
    case AV_PIX_FMT_YUVA420P10BE:
202
    case AV_PIX_FMT_YUVA420P16LE:
203
    case AV_PIX_FMT_YUVA420P16BE:
204
    case AV_PIX_FMT_YUV422P9LE:
205
    case AV_PIX_FMT_YUV422P9BE:
206
    case AV_PIX_FMT_YUV422P10LE:
207
    case AV_PIX_FMT_YUV422P10BE:
208
    case AV_PIX_FMT_YUV422P12LE:
209
    case AV_PIX_FMT_YUV422P12BE:
210
    case AV_PIX_FMT_YUV422P14LE:
211
    case AV_PIX_FMT_YUV422P14BE:
212
    case AV_PIX_FMT_YUV422P16LE:
213
    case AV_PIX_FMT_YUV422P16BE:
214
    case AV_PIX_FMT_YUVA422P9LE:
215
    case AV_PIX_FMT_YUVA422P9BE:
216
    case AV_PIX_FMT_YUVA422P10LE:
217
    case AV_PIX_FMT_YUVA422P10BE:
218
    case AV_PIX_FMT_YUVA422P12LE:
219
    case AV_PIX_FMT_YUVA422P12BE:
220
    case AV_PIX_FMT_YUVA422P16LE:
221
    case AV_PIX_FMT_YUVA422P16BE:
222
    case AV_PIX_FMT_YUV440P10LE:
223
    case AV_PIX_FMT_YUV440P10BE:
224
    case AV_PIX_FMT_YUV440P12LE:
225
    case AV_PIX_FMT_YUV440P12BE:
226
    case AV_PIX_FMT_YUV444P9LE:
227
    case AV_PIX_FMT_YUV444P9BE:
228
    case AV_PIX_FMT_YUV444P10LE:
229
    case AV_PIX_FMT_YUV444P10BE:
230
    case AV_PIX_FMT_YUV444P12LE:
231
    case AV_PIX_FMT_YUV444P12BE:
232
    case AV_PIX_FMT_YUV444P14LE:
233
    case AV_PIX_FMT_YUV444P14BE:
234
    case AV_PIX_FMT_YUV444P16LE:
235
    case AV_PIX_FMT_YUV444P16BE:
236
    case AV_PIX_FMT_YUVA444P9LE:
237
    case AV_PIX_FMT_YUVA444P9BE:
238
    case AV_PIX_FMT_YUVA444P10LE:
239
    case AV_PIX_FMT_YUVA444P10BE:
240
    case AV_PIX_FMT_YUVA444P12LE:
241
    case AV_PIX_FMT_YUVA444P12BE:
242
    case AV_PIX_FMT_YUVA444P16LE:
243
    case AV_PIX_FMT_YUVA444P16BE:
244
    case AV_PIX_FMT_GBRP9LE:
245
    case AV_PIX_FMT_GBRP9BE:
246
    case AV_PIX_FMT_GBRP10LE:
247
    case AV_PIX_FMT_GBRP10BE:
248
    case AV_PIX_FMT_GBRP12LE:
249
    case AV_PIX_FMT_GBRP12BE:
250
    case AV_PIX_FMT_GBRP14LE:
251
    case AV_PIX_FMT_GBRP14BE:
252
    case AV_PIX_FMT_GBRP16LE:
253
    case AV_PIX_FMT_GBRP16BE:
254
    case AV_PIX_FMT_GBRAP12LE:
255
    case AV_PIX_FMT_GBRAP12BE:
256
    case AV_PIX_FMT_GBRAP16LE:
257
    case AV_PIX_FMT_GBRAP16BE:
258
7555
        w_align = 16; //FIXME assume 16 pixel per macroblock
259
7555
        h_align = 16 * 2; // interlaced needs 2 macroblocks height
260
7555
        break;
261
26
    case AV_PIX_FMT_YUV411P:
262
    case AV_PIX_FMT_YUVJ411P:
263
    case AV_PIX_FMT_UYYVYY411:
264
26
        w_align = 32;
265
26
        h_align = 16 * 2;
266
26
        break;
267
21
    case AV_PIX_FMT_YUV410P:
268
21
        if (s->codec_id == AV_CODEC_ID_SVQ1) {
269
10
            w_align = 64;
270
10
            h_align = 64;
271
        }
272
21
        break;
273
34
    case AV_PIX_FMT_RGB555:
274
34
        if (s->codec_id == AV_CODEC_ID_RPZA) {
275
1
            w_align = 4;
276
1
            h_align = 4;
277
        }
278
34
        if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
279
1
            w_align = 8;
280
1
            h_align = 8;
281
        }
282
34
        break;
283
121
    case AV_PIX_FMT_PAL8:
284
    case AV_PIX_FMT_BGR8:
285
    case AV_PIX_FMT_RGB8:
286
121
        if (s->codec_id == AV_CODEC_ID_SMC ||
287
120
            s->codec_id == AV_CODEC_ID_CINEPAK) {
288
2
            w_align = 4;
289
2
            h_align = 4;
290
        }
291
121
        if (s->codec_id == AV_CODEC_ID_JV ||
292
120
            s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
293
2
            w_align = 8;
294
2
            h_align = 8;
295
        }
296
121
        break;
297
72
    case AV_PIX_FMT_BGR24:
298
72
        if ((s->codec_id == AV_CODEC_ID_MSZH) ||
299
71
            (s->codec_id == AV_CODEC_ID_ZLIB)) {
300
6
            w_align = 4;
301
6
            h_align = 4;
302
        }
303
72
        break;
304
193
    case AV_PIX_FMT_RGB24:
305
193
        if (s->codec_id == AV_CODEC_ID_CINEPAK) {
306
6
            w_align = 4;
307
6
            h_align = 4;
308
        }
309
193
        break;
310
421
    default:
311
421
        break;
312
    }
313
314
8443
    if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
315
2
        w_align = FFMAX(w_align, 8);
316
    }
317
318
8443
    *width  = FFALIGN(*width, w_align);
319
8443
    *height = FFALIGN(*height, h_align);
320

8443
    if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
321

7916
        s->codec_id == AV_CODEC_ID_VP5  || s->codec_id == AV_CODEC_ID_VP6 ||
322

7908
        s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
323
    ) {
324
        // some of the optimized chroma MC reads one line too much
325
        // which is also done in mpeg decoders with lowres > 0
326
539
        *height += 2;
327
328
        // H.264 uses edge emulation for out of frame motion vectors, for this
329
        // it requires a temporary area large enough to hold a 21x21 block,
330
        // increasing witdth ensure that the temporary area is large enough,
331
        // the next rounded up width is 32
332
539
        *width = FFMAX(*width, 32);
333
    }
334
335
42215
    for (i = 0; i < 4; i++)
336
33772
        linesize_align[i] = STRIDE_ALIGN;
337
8443
}
338
339
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
340
{
341
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
342
    int chroma_shift = desc->log2_chroma_w;
343
    int linesize_align[AV_NUM_DATA_POINTERS];
344
    int align;
345
346
    avcodec_align_dimensions2(s, width, height, linesize_align);
347
    align               = FFMAX(linesize_align[0], linesize_align[3]);
348
    linesize_align[1] <<= chroma_shift;
349
    linesize_align[2] <<= chroma_shift;
350
    align               = FFMAX3(align, linesize_align[1], linesize_align[2]);
351
    *width              = FFALIGN(*width, align);
352
}
353
354
1
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
355
{
356

1
    if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
357
        return AVERROR(EINVAL);
358
1
    pos--;
359
360
1
    *xpos = (pos&1) * 128;
361
1
    *ypos = ((pos>>1)^(pos<4)) * 128;
362
363
1
    return 0;
364
}
365
366
1
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
367
{
368
    int pos, xout, yout;
369
370
1
    for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
371

1
        if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
372
1
            return pos;
373
    }
374
    return AVCHROMA_LOC_UNSPECIFIED;
375
}
376
377
int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
378
                             enum AVSampleFormat sample_fmt, const uint8_t *buf,
379
                             int buf_size, int align)
380
{
381
    int ch, planar, needed_size, ret = 0;
382
383
    needed_size = av_samples_get_buffer_size(NULL, nb_channels,
384
                                             frame->nb_samples, sample_fmt,
385
                                             align);
386
    if (buf_size < needed_size)
387
        return AVERROR(EINVAL);
388
389
    planar = av_sample_fmt_is_planar(sample_fmt);
390
    if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
391
        if (!(frame->extended_data = av_mallocz_array(nb_channels,
392
                                                sizeof(*frame->extended_data))))
393
            return AVERROR(ENOMEM);
394
    } else {
395
        frame->extended_data = frame->data;
396
    }
397
398
    if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
399
                                      (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
400
                                      sample_fmt, align)) < 0) {
401
        if (frame->extended_data != frame->data)
402
            av_freep(&frame->extended_data);
403
        return ret;
404
    }
405
    if (frame->extended_data != frame->data) {
406
        for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
407
            frame->data[ch] = frame->extended_data[ch];
408
    }
409
410
    return ret;
411
}
412
413
14
void ff_color_frame(AVFrame *frame, const int c[4])
414
{
415
14
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
416
    int p, y;
417
418
14
    av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
419
420
56
    for (p = 0; p<desc->nb_components; p++) {
421
42
        uint8_t *dst = frame->data[p];
422

42
        int is_chroma = p == 1 || p == 2;
423
42
        int bytes  = is_chroma ? AV_CEIL_RSHIFT(frame->width,  desc->log2_chroma_w) : frame->width;
424
42
        int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
425
42
        if (desc->comp[0].depth >= 9) {
426
            ((uint16_t*)dst)[0] = c[p];
427
            av_memcpy_backptr(dst + 2, 2, bytes - 2);
428
            dst += frame->linesize[p];
429
            for (y = 1; y < height; y++) {
430
                memcpy(dst, frame->data[p], 2*bytes);
431
                dst += frame->linesize[p];
432
            }
433
        } else {
434
18666
            for (y = 0; y < height; y++) {
435
18624
                memset(dst, c[p], bytes);
436
18624
                dst += frame->linesize[p];
437
            }
438
        }
439
    }
440
14
}
441
442
46936
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
443
{
444
    int i;
445
446
1380084
    for (i = 0; i < count; i++) {
447
1333148
        int r = func(c, (char *)arg + i * size);
448
1333148
        if (ret)
449
28391
            ret[i] = r;
450
    }
451
46936
    emms_c();
452
46936
    return 0;
453
}
454
455
6829
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
456
{
457
    int i;
458
459
208409
    for (i = 0; i < count; i++) {
460
201580
        int r = func(c, arg, i, 0);
461
201580
        if (ret)
462
50
            ret[i] = r;
463
    }
464
6829
    emms_c();
465
6829
    return 0;
466
}
467
468
1362
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
469
                                       unsigned int fourcc)
470
{
471
12588
    while (tags->pix_fmt >= 0) {
472
12390
        if (tags->fourcc == fourcc)
473
1164
            return tags->pix_fmt;
474
11226
        tags++;
475
    }
476
198
    return AV_PIX_FMT_NONE;
477
}
478
479
#if FF_API_CODEC_GET_SET
480
MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
481
MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482
MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
483
MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
484
MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
485
486
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
487
{
488
    return codec->properties;
489
}
490
491
int av_codec_get_max_lowres(const AVCodec *codec)
492
{
493
    return codec->max_lowres;
494
}
495
#endif
496
497
164243
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
498
164243
    return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
499
}
500
501
20998
static int64_t get_bit_rate(AVCodecContext *ctx)
502
{
503
    int64_t bit_rate;
504
    int bits_per_sample;
505
506
20998
    switch (ctx->codec_type) {
507
17532
    case AVMEDIA_TYPE_VIDEO:
508
    case AVMEDIA_TYPE_DATA:
509
    case AVMEDIA_TYPE_SUBTITLE:
510
    case AVMEDIA_TYPE_ATTACHMENT:
511
17532
        bit_rate = ctx->bit_rate;
512
17532
        break;
513
3466
    case AVMEDIA_TYPE_AUDIO:
514
3466
        bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
515
3466
        bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
516
3466
        break;
517
    default:
518
        bit_rate = 0;
519
        break;
520
    }
521
20998
    return bit_rate;
522
}
523
524
525
24571
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
526
{
527

24571
    if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528
17495
        ff_mutex_lock(&codec_mutex);
529
24571
}
530
531
24571
static void ff_unlock_avcodec(const AVCodec *codec)
532
{
533

24571
    if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
534
17495
        ff_mutex_unlock(&codec_mutex);
535
24571
}
536
537
13
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
538
{
539
13
    int ret = 0;
540
541
13
    ff_unlock_avcodec(codec);
542
543
13
    ret = avcodec_open2(avctx, codec, options);
544
545
13
    ff_lock_avcodec(avctx, codec);
546
13
    return ret;
547
}
548
549
18579
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
550
{
551
18579
    int ret = 0;
552
18579
    int codec_init_ok = 0;
553
18579
    AVDictionary *tmp = NULL;
554
    const AVPixFmtDescriptor *pixdesc;
555
    AVCodecInternal *avci;
556
557
18579
    if (avcodec_is_open(avctx))
558
        return 0;
559
560

18579
    if (!codec && !avctx->codec) {
561
        av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
562
        return AVERROR(EINVAL);
563
    }
564

18579
    if (codec && avctx->codec && codec != avctx->codec) {
565
        av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
566
                                    "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
567
        return AVERROR(EINVAL);
568
    }
569
18579
    if (!codec)
570
2
        codec = avctx->codec;
571
572

18579
    if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
573
        return AVERROR(EINVAL);
574
575
18579
    if (options)
576
18497
        av_dict_copy(&tmp, *options, 0);
577
578
18579
    ff_lock_avcodec(avctx, codec);
579
580
18579
    avci = av_mallocz(sizeof(*avci));
581
18579
    if (!avci) {
582
        ret = AVERROR(ENOMEM);
583
        goto end;
584
    }
585
18579
    avctx->internal = avci;
586
587
18579
    avci->to_free = av_frame_alloc();
588
18579
    avci->compat_decode_frame = av_frame_alloc();
589
18579
    avci->compat_encode_packet = av_packet_alloc();
590
18579
    avci->buffer_frame = av_frame_alloc();
591
18579
    avci->buffer_pkt = av_packet_alloc();
592
18579
    avci->es.in_frame = av_frame_alloc();
593
18579
    avci->ds.in_pkt = av_packet_alloc();
594
18579
    avci->last_pkt_props = av_packet_alloc();
595

18579
    if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
596

18579
        !avci->buffer_frame || !avci->buffer_pkt          ||
597

18579
        !avci->es.in_frame  || !avci->ds.in_pkt           ||
598

18579
        !avci->to_free      || !avci->last_pkt_props) {
599
        ret = AVERROR(ENOMEM);
600
        goto free_and_end;
601
    }
602
603
18579
    avci->skip_samples_multiplier = 1;
604
605
18579
    if (codec->priv_data_size > 0) {
606
13193
        if (!avctx->priv_data) {
607
6556
            avctx->priv_data = av_mallocz(codec->priv_data_size);
608
6556
            if (!avctx->priv_data) {
609
                ret = AVERROR(ENOMEM);
610
                goto end;
611
            }
612
6556
            if (codec->priv_class) {
613
1663
                *(const AVClass **)avctx->priv_data = codec->priv_class;
614
1663
                av_opt_set_defaults(avctx->priv_data);
615
            }
616
        }
617

13193
        if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
618
            goto free_and_end;
619
    } else {
620
5386
        avctx->priv_data = NULL;
621
    }
622
18579
    if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
623
        goto free_and_end;
624
625

18579
    if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
626
        av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
627
        ret = AVERROR(EINVAL);
628
        goto free_and_end;
629
    }
630
631
    // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
632


18579
    if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
633

191
          (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
634

18568
        if (avctx->coded_width && avctx->coded_height)
635
190
            ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
636

18378
        else if (avctx->width && avctx->height)
637
11091
            ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
638
18568
        if (ret < 0)
639
            goto free_and_end;
640
    }
641
642


18579
    if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
643
11292
        && (  av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
644
11292
           || av_image_check_size2(avctx->width,       avctx->height,       avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
645
        av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
646
        ff_set_dimensions(avctx, 0, 0);
647
    }
648
649

18579
    if (avctx->width > 0 && avctx->height > 0) {
650
11292
        if (av_image_check_sar(avctx->width, avctx->height,
651
                               avctx->sample_aspect_ratio) < 0) {
652
            av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
653
                   avctx->sample_aspect_ratio.num,
654
                   avctx->sample_aspect_ratio.den);
655
            avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
656
        }
657
    }
658
659
    /* if the decoder init function was already called previously,
660
     * free the already allocated subtitle_header before overwriting it */
661
18579
    if (av_codec_is_decoder(codec))
662
12600
        av_freep(&avctx->subtitle_header);
663
664

18579
    if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
665
        av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
666
        ret = AVERROR(EINVAL);
667
        goto free_and_end;
668
    }
669
18579
    if (avctx->sample_rate < 0) {
670
        av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
671
        ret = AVERROR(EINVAL);
672
        goto free_and_end;
673
    }
674
18579
    if (avctx->block_align < 0) {
675
        av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
676
        ret = AVERROR(EINVAL);
677
        goto free_and_end;
678
    }
679
680
18579
    avctx->codec = codec;
681

18579
    if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
682
18579
        avctx->codec_id == AV_CODEC_ID_NONE) {
683
        avctx->codec_type = codec->type;
684
        avctx->codec_id   = codec->id;
685
    }
686

18579
    if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
687
                                         && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
688
        av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
689
        ret = AVERROR(EINVAL);
690
        goto free_and_end;
691
    }
692
18579
    avctx->frame_number = 0;
693
18579
    avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
694
695
18579
    if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
696
7
        avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
697
        const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
698
        AVCodec *codec2;
699
        av_log(avctx, AV_LOG_ERROR,
700
               "The %s '%s' is experimental but experimental codecs are not enabled, "
701
               "add '-strict %d' if you want to use it.\n",
702
               codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
703
        codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
704
        if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
705
            av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
706
                codec_string, codec2->name);
707
        ret = AVERROR_EXPERIMENTAL;
708
        goto free_and_end;
709
    }
710
711
18579
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
712

3880
        (!avctx->time_base.num || !avctx->time_base.den)) {
713
2762
        avctx->time_base.num = 1;
714
2762
        avctx->time_base.den = avctx->sample_rate;
715
    }
716
717
    if (!HAVE_THREADS)
718
        av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
719
720
18579
    if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
721
5979
        ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
722
5979
        ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
723
5979
        ff_lock_avcodec(avctx, codec);
724
5979
        if (ret < 0)
725
            goto free_and_end;
726
    }
727
728
18579
    if (av_codec_is_decoder(avctx->codec)) {
729
12600
        ret = ff_decode_bsfs_init(avctx);
730
12600
        if (ret < 0)
731
            goto free_and_end;
732
    }
733
734
18579
    if (HAVE_THREADS
735

18579
        && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
736
18561
        ret = ff_thread_init(avctx);
737
18561
        if (ret < 0) {
738
            goto free_and_end;
739
        }
740
    }
741
    if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
742
        avctx->thread_count = 1;
743
744

18579
    if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
745
        av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
746
               avctx->codec->max_lowres);
747
        avctx->lowres = avctx->codec->max_lowres;
748
    }
749
750
18579
    if (av_codec_is_encoder(avctx->codec)) {
751
        int i;
752
#if FF_API_CODED_FRAME
753
FF_DISABLE_DEPRECATION_WARNINGS
754
5979
        avctx->coded_frame = av_frame_alloc();
755
5979
        if (!avctx->coded_frame) {
756
            ret = AVERROR(ENOMEM);
757
            goto free_and_end;
758
        }
759
FF_ENABLE_DEPRECATION_WARNINGS
760
#endif
761
762

5979
        if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
763
            av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
764
            ret = AVERROR(EINVAL);
765
            goto free_and_end;
766
        }
767
768
5979
        if (avctx->codec->sample_fmts) {
769
1146
            for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
770
1146
                if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
771
1134
                    break;
772

15
                if (avctx->channels == 1 &&
773
3
                    av_get_planar_sample_fmt(avctx->sample_fmt) ==
774
3
                    av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
775
                    avctx->sample_fmt = avctx->codec->sample_fmts[i];
776
                    break;
777
                }
778
            }
779
1134
            if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
780
                char buf[128];
781
                snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
782
                av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
783
                       (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
784
                ret = AVERROR(EINVAL);
785
                goto free_and_end;
786
            }
787
        }
788
5979
        if (avctx->codec->pix_fmts) {
789
2076
            for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
790
2076
                if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
791
697
                    break;
792
697
            if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
793
                && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
794
                     && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
795
                char buf[128];
796
                snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
797
                av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
798
                       (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
799
                ret = AVERROR(EINVAL);
800
                goto free_and_end;
801
            }
802
697
            if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
803
675
                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
804
675
                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
805
671
                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
806
671
                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
807
34
                avctx->color_range = AVCOL_RANGE_JPEG;
808
        }
809
5979
        if (avctx->codec->supported_samplerates) {
810
103
            for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
811
103
                if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
812
44
                    break;
813
44
            if (avctx->codec->supported_samplerates[i] == 0) {
814
                av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
815
                       avctx->sample_rate);
816
                ret = AVERROR(EINVAL);
817
                goto free_and_end;
818
            }
819
        }
820
5979
        if (avctx->sample_rate < 0) {
821
            av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
822
                    avctx->sample_rate);
823
            ret = AVERROR(EINVAL);
824
            goto free_and_end;
825
        }
826
5979
        if (avctx->codec->channel_layouts) {
827
42
            if (!avctx->channel_layout) {
828
                av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
829
            } else {
830
58
                for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
831
58
                    if (avctx->channel_layout == avctx->codec->channel_layouts[i])
832
42
                        break;
833
42
                if (avctx->codec->channel_layouts[i] == 0) {
834
                    char buf[512];
835
                    av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
836
                    av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
837
                    ret = AVERROR(EINVAL);
838
                    goto free_and_end;
839
                }
840
            }
841
        }
842

7089
        if (avctx->channel_layout && avctx->channels) {
843
1110
            int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
844
1110
            if (channels != avctx->channels) {
845
                char buf[512];
846
                av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
847
                av_log(avctx, AV_LOG_ERROR,
848
                       "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
849
                       buf, channels, avctx->channels);
850
                ret = AVERROR(EINVAL);
851
                goto free_and_end;
852
            }
853
4869
        } else if (avctx->channel_layout) {
854
16
            avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
855
        }
856
5979
        if (avctx->channels < 0) {
857
            av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
858
                    avctx->channels);
859
            ret = AVERROR(EINVAL);
860
            goto free_and_end;
861
        }
862
5979
        if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
863
4815
            pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
864
4815
            if (    avctx->bits_per_raw_sample < 0
865

4815
                || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
866
                av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
867
                    avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
868
                avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
869
            }
870

4815
            if (avctx->width <= 0 || avctx->height <= 0) {
871
                av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
872
                ret = AVERROR(EINVAL);
873
                goto free_and_end;
874
            }
875
        }
876

5979
        if (   (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
877

5949
            && avctx->bit_rate>0 && avctx->bit_rate<1000) {
878
            av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
879
        }
880
881
5979
        if (!avctx->rc_initial_buffer_occupancy)
882
5978
            avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
883
884

5979
        if (avctx->ticks_per_frame && avctx->time_base.num &&
885
5949
            avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
886
            av_log(avctx, AV_LOG_ERROR,
887
                   "ticks_per_frame %d too large for the timebase %d/%d.",
888
                   avctx->ticks_per_frame,
889
                   avctx->time_base.num,
890
                   avctx->time_base.den);
891
            goto free_and_end;
892
        }
893
894
5979
        if (avctx->hw_frames_ctx) {
895
            AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
896
            if (frames_ctx->format != avctx->pix_fmt) {
897
                av_log(avctx, AV_LOG_ERROR,
898
                       "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
899
                ret = AVERROR(EINVAL);
900
                goto free_and_end;
901
            }
902
            if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
903
                avctx->sw_pix_fmt != frames_ctx->sw_format) {
904
                av_log(avctx, AV_LOG_ERROR,
905
                       "Mismatching AVCodecContext.sw_pix_fmt (%s) "
906
                       "and AVHWFramesContext.sw_format (%s)\n",
907
                       av_get_pix_fmt_name(avctx->sw_pix_fmt),
908
                       av_get_pix_fmt_name(frames_ctx->sw_format));
909
                ret = AVERROR(EINVAL);
910
                goto free_and_end;
911
            }
912
            avctx->sw_pix_fmt = frames_ctx->sw_format;
913
        }
914
    }
915
916
18579
    avctx->pts_correction_num_faulty_pts =
917
18579
    avctx->pts_correction_num_faulty_dts = 0;
918
18579
    avctx->pts_correction_last_pts =
919
18579
    avctx->pts_correction_last_dts = INT64_MIN;
920
921
18579
    if (   !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
922
        && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
923
        av_log(avctx, AV_LOG_WARNING,
924
               "gray decoding requested but not enabled at configuration time\n");
925
18579
    if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
926
5
        avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
927
    }
928
929

18579
    if (   avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
930
30
        || avci->frame_thread_encoder)) {
931
13517
        ret = avctx->codec->init(avctx);
932
13517
        if (ret < 0) {
933
8
            goto free_and_end;
934
        }
935
13509
        codec_init_ok = 1;
936
    }
937
938
18571
    ret=0;
939
940
18571
    if (av_codec_is_decoder(avctx->codec)) {
941
12592
        if (!avctx->bit_rate)
942
8457
            avctx->bit_rate = get_bit_rate(avctx);
943
        /* validate channel layout from the decoder */
944
12592
        if (avctx->channel_layout) {
945
1668
            int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
946
1668
            if (!avctx->channels)
947
16
                avctx->channels = channels;
948
1652
            else if (channels != avctx->channels) {
949
                char buf[512];
950
7
                av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
951
7
                av_log(avctx, AV_LOG_WARNING,
952
                       "Channel layout '%s' with %d channels does not match specified number of channels %d: "
953
                       "ignoring specified channel layout\n",
954
                       buf, channels, avctx->channels);
955
7
                avctx->channel_layout = 0;
956
            }
957
        }
958

12592
        if (avctx->channels && avctx->channels < 0 ||
959
12592
            avctx->channels > FF_SANE_NB_CHANNELS) {
960
            ret = AVERROR(EINVAL);
961
            goto free_and_end;
962
        }
963
12592
        if (avctx->bits_per_coded_sample < 0) {
964
            ret = AVERROR(EINVAL);
965
            goto free_and_end;
966
        }
967
12592
        if (avctx->sub_charenc) {
968
6
            if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
969
                av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
970
                       "supported with subtitles codecs\n");
971
                ret = AVERROR(EINVAL);
972
                goto free_and_end;
973
6
            } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
974
                av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
975
                       "subtitles character encoding will be ignored\n",
976
                       avctx->codec_descriptor->name);
977
                avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
978
            } else {
979
                /* input character encoding is set for a text based subtitle
980
                 * codec at this point */
981
6
                if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
982
6
                    avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
983
984
6
                if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
985
#if CONFIG_ICONV
986
6
                    iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
987
6
                    if (cd == (iconv_t)-1) {
988
                        ret = AVERROR(errno);
989
                        av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
990
                               "with input character encoding \"%s\"\n", avctx->sub_charenc);
991
                        goto free_and_end;
992
                    }
993
6
                    iconv_close(cd);
994
#else
995
                    av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
996
                           "conversion needs a libavcodec built with iconv support "
997
                           "for this codec\n");
998
                    ret = AVERROR(ENOSYS);
999
                    goto free_and_end;
1000
#endif
1001
                }
1002
            }
1003
        }
1004
1005
#if FF_API_AVCTX_TIMEBASE
1006

12592
        if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1007
4387
            avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1008
#endif
1009
    }
1010

18571
    if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1011
3823
        av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1012
    }
1013
1014
18571
end:
1015
18579
    ff_unlock_avcodec(codec);
1016
18579
    if (options) {
1017
18497
        av_dict_free(options);
1018
18497
        *options = tmp;
1019
    }
1020
1021
18579
    return ret;
1022
8
free_and_end:
1023

8
    if (avctx->codec && avctx->codec->close &&
1024
6
        (codec_init_ok ||
1025
6
         (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
1026
        avctx->codec->close(avctx);
1027
1028
8
    if (HAVE_THREADS && avci->thread_ctx)
1029
        ff_thread_free(avctx);
1030
1031

8
    if (codec->priv_class && codec->priv_data_size)
1032
        av_opt_free(avctx->priv_data);
1033
8
    av_opt_free(avctx);
1034
1035
#if FF_API_CODED_FRAME
1036
FF_DISABLE_DEPRECATION_WARNINGS
1037
8
    av_frame_free(&avctx->coded_frame);
1038
FF_ENABLE_DEPRECATION_WARNINGS
1039
#endif
1040
1041
8
    av_dict_free(&tmp);
1042
8
    av_freep(&avctx->priv_data);
1043
8
    av_freep(&avctx->subtitle_header);
1044
8
    if (avci) {
1045
8
        av_frame_free(&avci->to_free);
1046
8
        av_frame_free(&avci->compat_decode_frame);
1047
8
        av_frame_free(&avci->buffer_frame);
1048
8
        av_packet_free(&avci->compat_encode_packet);
1049
8
        av_packet_free(&avci->buffer_pkt);
1050
8
        av_packet_free(&avci->last_pkt_props);
1051
1052
8
        av_packet_free(&avci->ds.in_pkt);
1053
8
        av_frame_free(&avci->es.in_frame);
1054
8
        av_bsf_free(&avci->bsf);
1055
1056
8
        av_buffer_unref(&avci->pool);
1057
    }
1058
8
    av_freep(&avci);
1059
8
    avctx->internal = NULL;
1060
8
    avctx->codec = NULL;
1061
8
    goto end;
1062
}
1063
1064
28
void avcodec_flush_buffers(AVCodecContext *avctx)
1065
{
1066
28
    AVCodecInternal *avci = avctx->internal;
1067
1068
28
    if (av_codec_is_encoder(avctx->codec)) {
1069
        int caps = avctx->codec->capabilities;
1070
1071
        if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1072
            // Only encoders that explicitly declare support for it can be
1073
            // flushed. Otherwise, this is a no-op.
1074
            av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1075
                   "that doesn't support it\n");
1076
            return;
1077
        }
1078
1079
        // We haven't implemented flushing for frame-threaded encoders.
1080
        av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
1081
    }
1082
1083
28
    avci->draining      = 0;
1084
28
    avci->draining_done = 0;
1085
28
    avci->nb_draining_errors = 0;
1086
28
    av_frame_unref(avci->buffer_frame);
1087
28
    av_frame_unref(avci->compat_decode_frame);
1088
28
    av_packet_unref(avci->compat_encode_packet);
1089
28
    av_packet_unref(avci->buffer_pkt);
1090
1091
28
    av_frame_unref(avci->es.in_frame);
1092
28
    av_packet_unref(avci->ds.in_pkt);
1093
1094
28
    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1095
        ff_thread_flush(avctx);
1096
28
    else if (avctx->codec->flush)
1097
        avctx->codec->flush(avctx);
1098
1099
28
    avctx->pts_correction_last_pts =
1100
28
    avctx->pts_correction_last_dts = INT64_MIN;
1101
1102
28
    if (av_codec_is_decoder(avctx->codec))
1103
28
        av_bsf_flush(avci->bsf);
1104
1105
28
    if (!avctx->refcounted_frames)
1106
28
        av_frame_unref(avci->to_free);
1107
}
1108
1109
6955
void avsubtitle_free(AVSubtitle *sub)
1110
{
1111
    int i;
1112
1113
7596
    for (i = 0; i < sub->num_rects; i++) {
1114
641
        av_freep(&sub->rects[i]->data[0]);
1115
641
        av_freep(&sub->rects[i]->data[1]);
1116
641
        av_freep(&sub->rects[i]->data[2]);
1117
641
        av_freep(&sub->rects[i]->data[3]);
1118
641
        av_freep(&sub->rects[i]->text);
1119
641
        av_freep(&sub->rects[i]->ass);
1120
641
        av_freep(&sub->rects[i]);
1121
    }
1122
1123
6955
    av_freep(&sub->rects);
1124
1125
6955
    memset(sub, 0, sizeof(*sub));
1126
6955
}
1127
1128
63732
av_cold int avcodec_close(AVCodecContext *avctx)
1129
{
1130
    int i;
1131
1132
63732
    if (!avctx)
1133
        return 0;
1134
1135
63732
    if (avcodec_is_open(avctx)) {
1136
18571
        if (CONFIG_FRAME_THREAD_ENCODER &&
1137

18571
            avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1138
18
            ff_frame_thread_encoder_free(avctx);
1139
        }
1140
18571
        if (HAVE_THREADS && avctx->internal->thread_ctx)
1141
28
            ff_thread_free(avctx);
1142

18571
        if (avctx->codec && avctx->codec->close)
1143
7578
            avctx->codec->close(avctx);
1144
18571
        avctx->internal->byte_buffer_size = 0;
1145
18571
        av_freep(&avctx->internal->byte_buffer);
1146
18571
        av_frame_free(&avctx->internal->to_free);
1147
18571
        av_frame_free(&avctx->internal->compat_decode_frame);
1148
18571
        av_frame_free(&avctx->internal->buffer_frame);
1149
18571
        av_packet_free(&avctx->internal->compat_encode_packet);
1150
18571
        av_packet_free(&avctx->internal->buffer_pkt);
1151
18571
        av_packet_free(&avctx->internal->last_pkt_props);
1152
1153
18571
        av_packet_free(&avctx->internal->ds.in_pkt);
1154
18571
        av_frame_free(&avctx->internal->es.in_frame);
1155
1156
18571
        av_buffer_unref(&avctx->internal->pool);
1157
1158

18571
        if (avctx->hwaccel && avctx->hwaccel->uninit)
1159
            avctx->hwaccel->uninit(avctx);
1160
18571
        av_freep(&avctx->internal->hwaccel_priv_data);
1161
1162
18571
        av_bsf_free(&avctx->internal->bsf);
1163
1164
18571
        av_freep(&avctx->internal);
1165
    }
1166
1167
64126
    for (i = 0; i < avctx->nb_coded_side_data; i++)
1168
394
        av_freep(&avctx->coded_side_data[i].data);
1169
63732
    av_freep(&avctx->coded_side_data);
1170
63732
    avctx->nb_coded_side_data = 0;
1171
1172
63732
    av_buffer_unref(&avctx->hw_frames_ctx);
1173
63732
    av_buffer_unref(&avctx->hw_device_ctx);
1174
1175

63732
    if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1176
3977
        av_opt_free(avctx->priv_data);
1177
63732
    av_opt_free(avctx);
1178
63732
    av_freep(&avctx->priv_data);
1179
63732
    if (av_codec_is_encoder(avctx->codec)) {
1180
17617
        av_freep(&avctx->extradata);
1181
#if FF_API_CODED_FRAME
1182
FF_DISABLE_DEPRECATION_WARNINGS
1183
17617
        av_frame_free(&avctx->coded_frame);
1184
FF_ENABLE_DEPRECATION_WARNINGS
1185
#endif
1186
    }
1187
63732
    avctx->codec = NULL;
1188
63732
    avctx->active_thread_type = 0;
1189
1190
63732
    return 0;
1191
}
1192
1193
16098
const char *avcodec_get_name(enum AVCodecID id)
1194
{
1195
    const AVCodecDescriptor *cd;
1196
    AVCodec *codec;
1197
1198
16098
    if (id == AV_CODEC_ID_NONE)
1199
154
        return "none";
1200
15944
    cd = avcodec_descriptor_get(id);
1201
15944
    if (cd)
1202
15942
        return cd->name;
1203
2
    av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1204
2
    codec = avcodec_find_decoder(id);
1205
2
    if (codec)
1206
        return codec->name;
1207
2
    codec = avcodec_find_encoder(id);
1208
2
    if (codec)
1209
        return codec->name;
1210
2
    return "unknown_codec";
1211
}
1212
1213
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1214
{
1215
    int i, len, ret = 0;
1216
1217
#define TAG_PRINT(x)                                              \
1218
    (((x) >= '0' && (x) <= '9') ||                                \
1219
     ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') ||  \
1220
     ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1221
1222
    for (i = 0; i < 4; i++) {
1223
        len = snprintf(buf, buf_size,
1224
                       TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1225
        buf        += len;
1226
        buf_size    = buf_size > len ? buf_size - len : 0;
1227
        ret        += len;
1228
        codec_tag >>= 8;
1229
    }
1230
    return ret;
1231
}
1232
1233
12544
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1234
{
1235
    const char *codec_type;
1236
    const char *codec_name;
1237
12544
    const char *profile = NULL;
1238
    int64_t bitrate;
1239
12544
    int new_line = 0;
1240
    AVRational display_aspect_ratio;
1241
12544
    const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1242
1243

12544
    if (!buf || buf_size <= 0)
1244
3
        return;
1245
12544
    codec_type = av_get_media_type_string(enc->codec_type);
1246
12544
    codec_name = avcodec_get_name(enc->codec_id);
1247
12544
    profile = avcodec_profile_name(enc->codec_id, enc->profile);
1248
1249
12544
    snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1250
             codec_name);
1251
12544
    buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1252
1253

12544
    if (enc->codec && strcmp(enc->codec->name, codec_name))
1254
103
        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1255
1256
12544
    if (profile)
1257
1526
        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1258
12544
    if (   enc->codec_type == AVMEDIA_TYPE_VIDEO
1259
9744
        && av_log_get_level() >= AV_LOG_VERBOSE
1260
        && enc->refs)
1261
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1262
                 ", %d reference frame%s",
1263
                 enc->refs, enc->refs > 1 ? "s" : "");
1264
1265
12544
    if (enc->codec_tag)
1266
7260
        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1267
7260
                 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1268
1269

12544
    switch (enc->codec_type) {
1270
9744
    case AVMEDIA_TYPE_VIDEO:
1271
        {
1272
9744
            char detail[256] = "(";
1273
1274
9744
            av_strlcat(buf, separator, buf_size);
1275
1276
14
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1277
9744
                 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1278
9730
                     av_get_pix_fmt_name(enc->pix_fmt));
1279

9744
            if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1280
3407
                enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1281
9
                av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1282
9744
            if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1283
928
                av_strlcatf(detail, sizeof(detail), "%s, ",
1284
                            av_color_range_name(enc->color_range));
1285
1286
9744
            if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1287
9473
                enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1288
9473
                enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1289
285
                if (enc->colorspace != (int)enc->color_primaries ||
1290
94
                    enc->colorspace != (int)enc->color_trc) {
1291
212
                    new_line = 1;
1292
212
                    av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1293
                                av_color_space_name(enc->colorspace),
1294
                                av_color_primaries_name(enc->color_primaries),
1295
                                av_color_transfer_name(enc->color_trc));
1296
                } else
1297
73
                    av_strlcatf(detail, sizeof(detail), "%s, ",
1298
                                av_get_colorspace_name(enc->colorspace));
1299
            }
1300
1301
9744
            if (enc->field_order != AV_FIELD_UNKNOWN) {
1302
572
                const char *field_order = "progressive";
1303
572
                if (enc->field_order == AV_FIELD_TT)
1304
102
                    field_order = "top first";
1305
470
                else if (enc->field_order == AV_FIELD_BB)
1306
34
                    field_order = "bottom first";
1307
436
                else if (enc->field_order == AV_FIELD_TB)
1308
2
                    field_order = "top coded first (swapped)";
1309
434
                else if (enc->field_order == AV_FIELD_BT)
1310
18
                    field_order = "bottom coded first (swapped)";
1311
1312
572
                av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1313
            }
1314
1315
9744
            if (av_log_get_level() >= AV_LOG_VERBOSE &&
1316
                enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1317
                av_strlcatf(detail, sizeof(detail), "%s, ",
1318
                            av_chroma_location_name(enc->chroma_sample_location));
1319
1320
9744
            if (strlen(detail) > 1) {
1321
1392
                detail[strlen(detail) - 2] = 0;
1322
1392
                av_strlcatf(buf, buf_size, "%s)", detail);
1323
            }
1324
        }
1325
1326
9744
        if (enc->width) {
1327
9740
            av_strlcat(buf, new_line ? separator : ", ", buf_size);
1328
1329
9740
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1330
                     "%dx%d",
1331
                     enc->width, enc->height);
1332
1333
9740
            if (av_log_get_level() >= AV_LOG_VERBOSE &&
1334
                (enc->width != enc->coded_width ||
1335
                 enc->height != enc->coded_height))
1336
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1337
                         " (%dx%d)", enc->coded_width, enc->coded_height);
1338
1339
9740
            if (enc->sample_aspect_ratio.num) {
1340
1128
                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1341
1128
                          enc->width * (int64_t)enc->sample_aspect_ratio.num,
1342
1128
                          enc->height * (int64_t)enc->sample_aspect_ratio.den,
1343
                          1024 * 1024);
1344
1128
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1345
                         " [SAR %d:%d DAR %d:%d]",
1346
                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1347
                         display_aspect_ratio.num, display_aspect_ratio.den);
1348
            }
1349
9740
            if (av_log_get_level() >= AV_LOG_DEBUG) {
1350
                int g = av_gcd(enc->time_base.num, enc->time_base.den);
1351
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1352
                         ", %d/%d",
1353
                         enc->time_base.num / g, enc->time_base.den / g);
1354
            }
1355
        }
1356
9744
        if (encode) {
1357
4832
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1358
                     ", q=%d-%d", enc->qmin, enc->qmax);
1359
        } else {
1360
4912
            if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1361
2
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1362
                         ", Closed Captions");
1363
4912
            if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1364
19
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1365
                         ", lossless");
1366
        }
1367
9744
        break;
1368
2649
    case AVMEDIA_TYPE_AUDIO:
1369
2649
        av_strlcat(buf, separator, buf_size);
1370
1371
2649
        if (enc->sample_rate) {
1372
2649
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1373
                     "%d Hz, ", enc->sample_rate);
1374
        }
1375
2649
        av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1376
2649
        if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1377
2648
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1378
                     ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1379
        }
1380
2649
        if (   enc->bits_per_raw_sample > 0
1381
366
            && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1382
115
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1383
                     " (%d bit)", enc->bits_per_raw_sample);
1384
2649
        if (av_log_get_level() >= AV_LOG_VERBOSE) {
1385
4
            if (enc->initial_padding)
1386
2
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1387
                         ", delay %d", enc->initial_padding);
1388
4
            if (enc->trailing_padding)
1389
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1390
                         ", padding %d", enc->trailing_padding);
1391
        }
1392
2649
        break;
1393
64
    case AVMEDIA_TYPE_DATA:
1394
64
        if (av_log_get_level() >= AV_LOG_DEBUG) {
1395
            int g = av_gcd(enc->time_base.num, enc->time_base.den);
1396
            if (g)
1397
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1398
                         ", %d/%d",
1399
                         enc->time_base.num / g, enc->time_base.den / g);
1400
        }
1401
64
        break;
1402
84
    case AVMEDIA_TYPE_SUBTITLE:
1403
84
        if (enc->width)
1404
17
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1405
                     ", %dx%d", enc->width, enc->height);
1406
84
        break;
1407
3
    default:
1408
3
        return;
1409
    }
1410
12541
    if (encode) {
1411
6106
        if (enc->flags & AV_CODEC_FLAG_PASS1)
1412
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1413
                     ", pass 1");
1414
6106
        if (enc->flags & AV_CODEC_FLAG_PASS2)
1415
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1416
                     ", pass 2");
1417
    }
1418
12541
    bitrate = get_bit_rate(enc);
1419
12541
    if (bitrate != 0) {
1420
8199
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1421
                 ", %"PRId64" kb/s", bitrate / 1000);
1422
4342
    } else if (enc->rc_max_rate > 0) {
1423
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1424
                 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1425
    }
1426
}
1427
1428
const char *av_get_profile_name(const AVCodec *codec, int profile)
1429
{
1430
    const AVProfile *p;
1431
    if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1432
        return NULL;
1433
1434
    for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1435
        if (p->profile == profile)
1436
            return p->name;
1437
1438
    return NULL;
1439
}
1440
1441
12553
const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1442
{
1443
12553
    const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1444
    const AVProfile *p;
1445
1446

12553
    if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1447
11010
        return NULL;
1448
1449
4118
    for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1450
4108
        if (p->profile == profile)
1451
1533
            return p->name;
1452
1453
10
    return NULL;
1454
}
1455
1456
6033
unsigned avcodec_version(void)
1457
{
1458
    av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1459
    av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1460
    av_assert0(AV_CODEC_ID_SRT==94216);
1461
    av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1462
1463
6033
    return LIBAVCODEC_VERSION_INT;
1464
}
1465
1466
6033
const char *avcodec_configuration(void)
1467
{
1468
6033
    return FFMPEG_CONFIGURATION;
1469
}
1470
1471
const char *avcodec_license(void)
1472
{
1473
#define LICENSE_PREFIX "libavcodec license: "
1474
    return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1475
}
1476
1477
898521
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1478
{
1479

898521
    switch (codec_id) {
1480
10482
    case AV_CODEC_ID_8SVX_EXP:
1481
    case AV_CODEC_ID_8SVX_FIB:
1482
    case AV_CODEC_ID_ADPCM_ARGO:
1483
    case AV_CODEC_ID_ADPCM_CT:
1484
    case AV_CODEC_ID_ADPCM_IMA_APC:
1485
    case AV_CODEC_ID_ADPCM_IMA_APM:
1486
    case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1487
    case AV_CODEC_ID_ADPCM_IMA_OKI:
1488
    case AV_CODEC_ID_ADPCM_IMA_WS:
1489
    case AV_CODEC_ID_ADPCM_IMA_SSI:
1490
    case AV_CODEC_ID_ADPCM_G722:
1491
    case AV_CODEC_ID_ADPCM_YAMAHA:
1492
    case AV_CODEC_ID_ADPCM_AICA:
1493
10482
        return 4;
1494
11448
    case AV_CODEC_ID_DSD_LSBF:
1495
    case AV_CODEC_ID_DSD_MSBF:
1496
    case AV_CODEC_ID_DSD_LSBF_PLANAR:
1497
    case AV_CODEC_ID_DSD_MSBF_PLANAR:
1498
    case AV_CODEC_ID_PCM_ALAW:
1499
    case AV_CODEC_ID_PCM_MULAW:
1500
    case AV_CODEC_ID_PCM_VIDC:
1501
    case AV_CODEC_ID_PCM_S8:
1502
    case AV_CODEC_ID_PCM_S8_PLANAR:
1503
    case AV_CODEC_ID_PCM_U8:
1504
    case AV_CODEC_ID_SDX2_DPCM:
1505
    case AV_CODEC_ID_DERF_DPCM:
1506
11448
        return 8;
1507
634171
    case AV_CODEC_ID_PCM_S16BE:
1508
    case AV_CODEC_ID_PCM_S16BE_PLANAR:
1509
    case AV_CODEC_ID_PCM_S16LE:
1510
    case AV_CODEC_ID_PCM_S16LE_PLANAR:
1511
    case AV_CODEC_ID_PCM_U16BE:
1512
    case AV_CODEC_ID_PCM_U16LE:
1513
634171
        return 16;
1514
45016
    case AV_CODEC_ID_PCM_S24DAUD:
1515
    case AV_CODEC_ID_PCM_S24BE:
1516
    case AV_CODEC_ID_PCM_S24LE:
1517
    case AV_CODEC_ID_PCM_S24LE_PLANAR:
1518
    case AV_CODEC_ID_PCM_U24BE:
1519
    case AV_CODEC_ID_PCM_U24LE:
1520
45016
        return 24;
1521
27125
    case AV_CODEC_ID_PCM_S32BE:
1522
    case AV_CODEC_ID_PCM_S32LE:
1523
    case AV_CODEC_ID_PCM_S32LE_PLANAR:
1524
    case AV_CODEC_ID_PCM_U32BE:
1525
    case AV_CODEC_ID_PCM_U32LE:
1526
    case AV_CODEC_ID_PCM_F32BE:
1527
    case AV_CODEC_ID_PCM_F32LE:
1528
    case AV_CODEC_ID_PCM_F24LE:
1529
    case AV_CODEC_ID_PCM_F16LE:
1530
27125
        return 32;
1531
21300
    case AV_CODEC_ID_PCM_F64BE:
1532
    case AV_CODEC_ID_PCM_F64LE:
1533
    case AV_CODEC_ID_PCM_S64BE:
1534
    case AV_CODEC_ID_PCM_S64LE:
1535
21300
        return 64;
1536
148979
    default:
1537
148979
        return 0;
1538
    }
1539
}
1540
1541
16
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1542
{
1543
    static const enum AVCodecID map[][2] = {
1544
        [AV_SAMPLE_FMT_U8  ] = { AV_CODEC_ID_PCM_U8,    AV_CODEC_ID_PCM_U8    },
1545
        [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1546
        [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1547
        [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1548
        [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1549
        [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8,    AV_CODEC_ID_PCM_U8    },
1550
        [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1551
        [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1552
        [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1553
        [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1554
        [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1555
    };
1556

16
    if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1557
        return AV_CODEC_ID_NONE;
1558

16
    if (be < 0 || be > 1)
1559
16
        be = AV_NE(1, 0);
1560
16
    return map[fmt][be];
1561
}
1562
1563
368885
int av_get_bits_per_sample(enum AVCodecID codec_id)
1564
{
1565

368885
    switch (codec_id) {
1566
3
    case AV_CODEC_ID_ADPCM_SBPRO_2:
1567
3
        return 2;
1568
3
    case AV_CODEC_ID_ADPCM_SBPRO_3:
1569
3
        return 3;
1570
61
    case AV_CODEC_ID_ADPCM_SBPRO_4:
1571
    case AV_CODEC_ID_ADPCM_IMA_WAV:
1572
    case AV_CODEC_ID_ADPCM_IMA_QT:
1573
    case AV_CODEC_ID_ADPCM_SWF:
1574
    case AV_CODEC_ID_ADPCM_MS:
1575
61
        return 4;
1576
368818
    default:
1577
368818
        return av_get_exact_bits_per_sample(codec_id);
1578
    }
1579
}
1580
1581
523859
static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1582
                                    uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1583
                                    uint8_t * extradata, int frame_size, int frame_bytes)
1584
{
1585
523859
    int bps = av_get_exact_bits_per_sample(id);
1586

523859
    int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1587
1588
    /* codecs with an exact constant bits per sample */
1589


523859
    if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1590
381918
        return (frame_bytes * 8LL) / (bps * ch);
1591
141941
    bps = bits_per_coded_sample;
1592
1593
    /* codecs with a fixed packet duration */
1594



141941
    switch (id) {
1595
16542
    case AV_CODEC_ID_ADPCM_ADX:    return   32;
1596
8274
    case AV_CODEC_ID_ADPCM_IMA_QT: return   64;
1597
600
    case AV_CODEC_ID_ADPCM_EA_XAS: return  128;
1598
3933
    case AV_CODEC_ID_AMR_NB:
1599
    case AV_CODEC_ID_EVRC:
1600
    case AV_CODEC_ID_GSM:
1601
    case AV_CODEC_ID_QCELP:
1602
3933
    case AV_CODEC_ID_RA_288:       return  160;
1603
    case AV_CODEC_ID_AMR_WB:
1604
    case AV_CODEC_ID_GSM_MS:       return  320;
1605
    case AV_CODEC_ID_MP1:          return  384;
1606
3274
    case AV_CODEC_ID_ATRAC1:       return  512;
1607
2756
    case AV_CODEC_ID_ATRAC9:
1608
2756
    case AV_CODEC_ID_ATRAC3:       return 1024 * framecount;
1609
813
    case AV_CODEC_ID_ATRAC3P:      return 2048;
1610
10201
    case AV_CODEC_ID_MP2:
1611
10201
    case AV_CODEC_ID_MUSEPACK7:    return 1152;
1612
1167
    case AV_CODEC_ID_AC3:          return 1536;
1613
    }
1614
1615
94381
    if (sr > 0) {
1616
        /* calc from sample rate */
1617
59086
        if (id == AV_CODEC_ID_TTA)
1618
9
            return 256 * sr / 245;
1619
59077
        else if (id == AV_CODEC_ID_DST)
1620
            return 588 * sr / 44100;
1621
1622
59077
        if (ch > 0) {
1623
            /* calc from sample rate and channels */
1624
59077
            if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1625
65
                return (480 << (sr / 22050)) / ch;
1626
        }
1627
1628
59012
        if (id == AV_CODEC_ID_MP3)
1629
2690
            return sr <= 24000 ? 576 : 1152;
1630
    }
1631
1632
91617
    if (ba > 0) {
1633
        /* calc from block_align */
1634
18296
        if (id == AV_CODEC_ID_SIPR) {
1635

6418
            switch (ba) {
1636
3250
            case 20: return 160;
1637
1152
            case 19: return 144;
1638
1680
            case 29: return 288;
1639
336
            case 37: return 480;
1640
            }
1641
11878
        } else if (id == AV_CODEC_ID_ILBC) {
1642
            switch (ba) {
1643
            case 38: return 160;
1644
            case 50: return 240;
1645
            }
1646
        }
1647
    }
1648
1649
85199
    if (frame_bytes > 0) {
1650
        /* calc from frame_bytes only */
1651
82521
        if (id == AV_CODEC_ID_TRUESPEECH)
1652
12
            return 240 * (frame_bytes / 32);
1653
82509
        if (id == AV_CODEC_ID_NELLYMOSER)
1654
2074
            return 256 * (frame_bytes / 64);
1655
80435
        if (id == AV_CODEC_ID_RA_144)
1656
1057
            return 160 * (frame_bytes / 20);
1657
1658
79378
        if (bps > 0) {
1659
            /* calc from frame_bytes and bits_per_coded_sample */
1660

15118
            if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1661
106
                return frame_bytes * 8 / bps;
1662
        }
1663
1664

79272
        if (ch > 0 && ch < INT_MAX/16) {
1665
            /* calc from frame_bytes and channels */
1666



46591
            switch (id) {
1667
36
            case AV_CODEC_ID_ADPCM_AFC:
1668
36
                return frame_bytes / (9 * ch) * 16;
1669
33
            case AV_CODEC_ID_ADPCM_PSX:
1670
            case AV_CODEC_ID_ADPCM_DTK:
1671
33
                return frame_bytes / (16 * ch) * 28;
1672
452
            case AV_CODEC_ID_ADPCM_4XM:
1673
            case AV_CODEC_ID_ADPCM_IMA_DAT4:
1674
            case AV_CODEC_ID_ADPCM_IMA_ISS:
1675
452
                return (frame_bytes - 4 * ch) * 2 / ch;
1676
1601
            case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1677
1601
                return (frame_bytes - 4) * 2 / ch;
1678
162
            case AV_CODEC_ID_ADPCM_IMA_AMV:
1679
162
                return (frame_bytes - 8) * 2 / ch;
1680
1792
            case AV_CODEC_ID_ADPCM_THP:
1681
            case AV_CODEC_ID_ADPCM_THP_LE:
1682
1792
                if (extradata)
1683
1767
                    return frame_bytes * 14 / (8 * ch);
1684
25
                break;
1685
111
            case AV_CODEC_ID_ADPCM_XA:
1686
111
                return (frame_bytes / 128) * 224 / ch;
1687
327
            case AV_CODEC_ID_INTERPLAY_DPCM:
1688
327
                return (frame_bytes - 6 - ch) / ch;
1689
680
            case AV_CODEC_ID_ROQ_DPCM:
1690
680
                return (frame_bytes - 8) / ch;
1691
112
            case AV_CODEC_ID_XAN_DPCM:
1692
112
                return (frame_bytes - 2 * ch) / ch;
1693
            case AV_CODEC_ID_MACE3:
1694
                return 3 * frame_bytes / ch;
1695
69
            case AV_CODEC_ID_MACE6:
1696
69
                return 6 * frame_bytes / ch;
1697
            case AV_CODEC_ID_PCM_LXF:
1698
                return 2 * (frame_bytes / (5 * ch));
1699
1311
            case AV_CODEC_ID_IAC:
1700
            case AV_CODEC_ID_IMC:
1701
1311
                return 4 * frame_bytes / ch;
1702
            }
1703
1704
39930
            if (tag) {
1705
                /* calc from frame_bytes, channels, and codec_tag */
1706
9145
                if (id == AV_CODEC_ID_SOL_DPCM) {
1707
74
                    if (tag == 3)
1708
74
                        return frame_bytes / ch;
1709
                    else
1710
                        return frame_bytes * 2 / ch;
1711
                }
1712
            }
1713
1714
39856
            if (ba > 0) {
1715
                /* calc from frame_bytes, channels, and block_align */
1716
8767
                int blocks = frame_bytes / ba;
1717

8767
                switch (id) {
1718
916
                case AV_CODEC_ID_ADPCM_IMA_WAV:
1719

916
                    if (bps < 2 || bps > 5)
1720
                        return 0;
1721
916
                    return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1722
669
                case AV_CODEC_ID_ADPCM_IMA_DK3:
1723
669
                    return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1724
649
                case AV_CODEC_ID_ADPCM_IMA_DK4:
1725
649
                    return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1726
1001
                case AV_CODEC_ID_ADPCM_IMA_RAD:
1727
1001
                    return blocks * ((ba - 4 * ch) * 2 / ch);
1728
890
                case AV_CODEC_ID_ADPCM_MS:
1729
890
                    return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1730
                case AV_CODEC_ID_ADPCM_MTAF:
1731
                    return blocks * (ba - 16) * 2 / ch;
1732
                }
1733
            }
1734
1735
35731
            if (bps > 0) {
1736
                /* calc from frame_bytes, channels, and bits_per_coded_sample */
1737

7347
                switch (id) {
1738
654
                case AV_CODEC_ID_PCM_DVD:
1739

654
                    if(bps<4 || frame_bytes<3)
1740
                        return 0;
1741
654
                    return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1742
                case AV_CODEC_ID_PCM_BLURAY:
1743
                    if(bps<4 || frame_bytes<4)
1744
                        return 0;
1745
                    return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1746
                case AV_CODEC_ID_S302M:
1747
                    return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1748
                }
1749
            }
1750
        }
1751
    }
1752
1753
    /* Fall back on using frame_size */
1754

70436
    if (frame_size > 1 && frame_bytes)
1755
21484
        return frame_size;
1756
1757
    //For WMA we currently have no other means to calculate duration thus we
1758
    //do it here by assuming CBR, which is true for all known cases.
1759


48952
    if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1760

4188
        if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1761
770
            return  (frame_bytes * 8LL * sr) / bitrate;
1762
    }
1763
1764
48182
    return 0;
1765
}
1766
1767
427536
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1768
{
1769
427536
    return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1770
                                    avctx->channels, avctx->block_align,
1771
                                    avctx->codec_tag, avctx->bits_per_coded_sample,
1772
                                    avctx->bit_rate, avctx->extradata, avctx->frame_size,
1773
                                    frame_bytes);
1774
}
1775
1776
96323
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1777
{
1778
96323
    return get_audio_frame_duration(par->codec_id, par->sample_rate,
1779
                                    par->channels, par->block_align,
1780
                                    par->codec_tag, par->bits_per_coded_sample,
1781
                                    par->bit_rate, par->extradata, par->frame_size,
1782
                                    frame_bytes);
1783
}
1784
1785
#if !HAVE_THREADS
1786
int ff_thread_init(AVCodecContext *s)
1787
{
1788
    return -1;
1789
}
1790
1791
#endif
1792
1793
54
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1794
{
1795
54
    unsigned int n = 0;
1796
1797
54
    while (v >= 0xff) {
1798
        *s++ = 0xff;
1799
        v -= 0xff;
1800
        n++;
1801
    }
1802
54
    *s = v;
1803
54
    n++;
1804
54
    return n;
1805
}
1806
1807
476
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1808
{
1809
    int i;
1810

1924
    for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1811
476
    return i;
1812
}
1813
1814
13194
const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1815
{
1816
    int i;
1817

13194
    if (!codec->hw_configs || index < 0)
1818
10759
        return NULL;
1819
6404
    for (i = 0; i <= index; i++)
1820
4803
        if (!codec->hw_configs[i])
1821
834
            return NULL;
1822
1601
    return &codec->hw_configs[index]->public;
1823
}
1824
1825
#if FF_API_USER_VISIBLE_AVHWACCEL
1826
AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1827
{
1828
    return NULL;
1829
}
1830
1831
void av_register_hwaccel(AVHWAccel *hwaccel)
1832
{
1833
}
1834
#endif
1835
1836
#if FF_API_LOCKMGR
1837
int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1838
{
1839
    return 0;
1840
}
1841
#endif
1842
1843
623060
unsigned int avpriv_toupper4(unsigned int x)
1844
{
1845
623060
    return av_toupper(x & 0xFF) +
1846
623060
          (av_toupper((x >>  8) & 0xFF) << 8)  +
1847
1246120
          (av_toupper((x >> 16) & 0xFF) << 16) +
1848
623060
((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1849
}
1850
1851
137108
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
1852
{
1853
    int ret;
1854
1855
137108
    dst->owner[0] = src->owner[0];
1856
137108
    dst->owner[1] = src->owner[1];
1857
1858
137108
    ret = av_frame_ref(dst->f, src->f);
1859
137108
    if (ret < 0)
1860
        return ret;
1861
1862
137108
    av_assert0(!dst->progress);
1863
1864
137108
    if (src->progress &&
1865
333
        !(dst->progress = av_buffer_ref(src->progress))) {
1866
        ff_thread_release_buffer(dst->owner[0], dst);
1867
        return AVERROR(ENOMEM);
1868
    }
1869
1870
137108
    return 0;
1871
}
1872
1873
#if !HAVE_THREADS
1874
1875
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1876
{
1877
    return ff_get_format(avctx, fmt);
1878
}
1879
1880
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1881
{
1882
    f->owner[0] = f->owner[1] = avctx;
1883
    return ff_get_buffer(avctx, f->f, flags);
1884
}
1885
1886
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1887
{
1888
    if (f->f)
1889
        av_frame_unref(f->f);
1890
}
1891
1892
void ff_thread_finish_setup(AVCodecContext *avctx)
1893
{
1894
}
1895
1896
void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1897
{
1898
}
1899
1900
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1901
{
1902
}
1903
1904
int ff_thread_can_start_frame(AVCodecContext *avctx)
1905
{
1906
    return 1;
1907
}
1908
1909
int ff_alloc_entries(AVCodecContext *avctx, int count)
1910
{
1911
    return 0;
1912
}
1913
1914
void ff_reset_entries(AVCodecContext *avctx)
1915
{
1916
}
1917
1918
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1919
{
1920
}
1921
1922
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1923
{
1924
}
1925
1926
#endif
1927
1928
2894882
int avcodec_is_open(AVCodecContext *s)
1929
{
1930
2894882
    return !!s->internal;
1931
}
1932
1933
1
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1934
{
1935
    int ret;
1936
    char *str;
1937
1938
1
    ret = av_bprint_finalize(buf, &str);
1939
1
    if (ret < 0)
1940
        return ret;
1941
1
    if (!av_bprint_is_complete(buf)) {
1942
        av_free(str);
1943
        return AVERROR(ENOMEM);
1944
    }
1945
1946
1
    avctx->extradata = str;
1947
    /* Note: the string is NUL terminated (so extradata can be read as a
1948
     * string), but the ending character is not accounted in the size (in
1949
     * binary formats you are likely not supposed to mux that character). When
1950
     * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1951
     * zeros. */
1952
1
    avctx->extradata_size = buf->len;
1953
1
    return 0;
1954
}
1955
1956
550482
const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1957
                                      const uint8_t *end,
1958
                                      uint32_t *av_restrict state)
1959
{
1960
    int i;
1961
1962
550482
    av_assert0(p <= end);
1963
550482
    if (p >= end)
1964
553
        return end;
1965
1966
2190691
    for (i = 0; i < 3; i++) {
1967
1644405
        uint32_t tmp = *state << 8;
1968
1644405
        *state = tmp + *(p++);
1969

1644405
        if (tmp == 0x100 || p == end)
1970
3643
            return p;
1971
    }
1972
1973
117842106
    while (p < end) {
1974
117790150
        if      (p[-1] > 1      ) p += 3;
1975
14741492
        else if (p[-2]          ) p += 2;
1976
9133441
        else if (p[-3]|(p[-1]-1)) p++;
1977
        else {
1978
494330
            p++;
1979
494330
            break;
1980
        }
1981
    }
1982
1983
546286
    p = FFMIN(p, end) - 4;
1984
546286
    *state = AV_RB32(p);
1985
1986
546286
    return p + 4;
1987
}
1988
1989
419
AVCPBProperties *av_cpb_properties_alloc(size_t *size)
1990
{
1991
419
    AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1992
419
    if (!props)
1993
        return NULL;
1994
1995
419
    if (size)
1996
419
        *size = sizeof(*props);
1997
1998
419
    props->vbv_delay = UINT64_MAX;
1999
2000
419
    return props;
2001
}
2002
2003
831
AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2004
{
2005
    AVPacketSideData *tmp;
2006
    AVCPBProperties  *props;
2007
    size_t size;
2008
    int i;
2009
2010
831
    for (i = 0; i < avctx->nb_coded_side_data; i++)
2011
437
        if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
2012
437
            return (AVCPBProperties *)avctx->coded_side_data[i].data;
2013
2014
394
    props = av_cpb_properties_alloc(&size);
2015
394
    if (!props)
2016
        return NULL;
2017
2018
394
    tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2019
394
    if (!tmp) {
2020
        av_freep(&props);
2021
        return NULL;
2022
    }
2023
2024
394
    avctx->coded_side_data = tmp;
2025
394
    avctx->nb_coded_side_data++;
2026
2027
394
    avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2028
394
    avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2029
394
    avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2030
2031
394
    return props;
2032
}
2033
2034
155140
static void codec_parameters_reset(AVCodecParameters *par)
2035
{
2036
155140
    av_freep(&par->extradata);
2037
2038
155140
    memset(par, 0, sizeof(*par));
2039
2040
155140
    par->codec_type          = AVMEDIA_TYPE_UNKNOWN;
2041
155140
    par->codec_id            = AV_CODEC_ID_NONE;
2042
155140
    par->format              = -1;
2043
155140
    par->field_order         = AV_FIELD_UNKNOWN;
2044
155140
    par->color_range         = AVCOL_RANGE_UNSPECIFIED;
2045
155140
    par->color_primaries     = AVCOL_PRI_UNSPECIFIED;
2046
155140
    par->color_trc           = AVCOL_TRC_UNSPECIFIED;
2047
155140
    par->color_space         = AVCOL_SPC_UNSPECIFIED;
2048
155140
    par->chroma_location     = AVCHROMA_LOC_UNSPECIFIED;
2049
155140
    par->sample_aspect_ratio = (AVRational){ 0, 1 };
2050
155140
    par->profile             = FF_PROFILE_UNKNOWN;
2051
155140
    par->level               = FF_LEVEL_UNKNOWN;
2052
155140
}
2053
2054
48318
AVCodecParameters *avcodec_parameters_alloc(void)
2055
{
2056
48318
    AVCodecParameters *par = av_mallocz(sizeof(*par));
2057
2058
48318
    if (!par)
2059
        return NULL;
2060
48318
    codec_parameters_reset(par);
2061
48318
    return par;
2062
}
2063
2064
48312
void avcodec_parameters_free(AVCodecParameters **ppar)
2065
{
2066
48312
    AVCodecParameters *par = *ppar;
2067
2068
48312
    if (!par)
2069
        return;
2070
48312
    codec_parameters_reset(par);
2071
2072
48312
    av_freep(ppar);
2073
}
2074
2075
26769
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2076
{
2077
26769
    codec_parameters_reset(dst);
2078
26769
    memcpy(dst, src, sizeof(*dst));
2079
2080
26769
    dst->extradata      = NULL;
2081
26769
    dst->extradata_size = 0;
2082
26769
    if (src->extradata) {
2083
4124
        dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2084
4124
        if (!dst->extradata)
2085
            return AVERROR(ENOMEM);
2086
4124
        memcpy(dst->extradata, src->extradata, src->extradata_size);
2087
4124
        dst->extradata_size = src->extradata_size;
2088
    }
2089
2090
26769
    return 0;
2091
}
2092
2093
31741
int avcodec_parameters_from_context(AVCodecParameters *par,
2094
                                    const AVCodecContext *codec)
2095
{
2096
31741
    codec_parameters_reset(par);
2097
2098
31741
    par->codec_type = codec->codec_type;
2099
31741
    par->codec_id   = codec->codec_id;
2100
31741
    par->codec_tag  = codec->codec_tag;
2101
2102
31741
    par->bit_rate              = codec->bit_rate;
2103
31741
    par->bits_per_coded_sample = codec->bits_per_coded_sample;
2104
31741
    par->bits_per_raw_sample   = codec->bits_per_raw_sample;
2105
31741
    par->profile               = codec->profile;
2106
31741
    par->level                 = codec->level;
2107
2108

31741
    switch (par->codec_type) {
2109
24527
    case AVMEDIA_TYPE_VIDEO:
2110
24527
        par->format              = codec->pix_fmt;
2111
24527
        par->width               = codec->width;
2112
24527
        par->height              = codec->height;
2113
24527
        par->field_order         = codec->field_order;
2114
24527
        par->color_range         = codec->color_range;
2115
24527
        par->color_primaries     = codec->color_primaries;
2116
24527
        par->color_trc           = codec->color_trc;
2117
24527
        par->color_space         = codec->colorspace;
2118
24527
        par->chroma_location     = codec->chroma_sample_location;
2119
24527
        par->sample_aspect_ratio = codec->sample_aspect_ratio;
2120
24527
        par->video_delay         = codec->has_b_frames;
2121
24527
        break;
2122
6895
    case AVMEDIA_TYPE_AUDIO:
2123
6895
        par->format           = codec->sample_fmt;
2124
6895
        par->channel_layout   = codec->channel_layout;
2125
6895
        par->channels         = codec->channels;
2126
6895
        par->sample_rate      = codec->sample_rate;
2127
6895
        par->block_align      = codec->block_align;
2128
6895
        par->frame_size       = codec->frame_size;
2129
6895
        par->initial_padding  = codec->initial_padding;
2130
6895
        par->trailing_padding = codec->trailing_padding;
2131
6895
        par->seek_preroll     = codec->seek_preroll;
2132
6895
        break;
2133
207
    case AVMEDIA_TYPE_SUBTITLE:
2134
207
        par->width  = codec->width;
2135
207
        par->height = codec->height;
2136
207
        break;
2137
    }
2138
2139
31741
    if (codec->extradata) {
2140
4966
        par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2141
4966
        if (!par->extradata)
2142
            return AVERROR(ENOMEM);
2143
4966
        memcpy(par->extradata, codec->extradata, codec->extradata_size);
2144
4966
        par->extradata_size = codec->extradata_size;
2145
    }
2146
2147
31741
    return 0;
2148
}
2149
2150
46709
int avcodec_parameters_to_context(AVCodecContext *codec,
2151
                                  const AVCodecParameters *par)
2152
{
2153
46709
    codec->codec_type = par->codec_type;
2154
46709
    codec->codec_id   = par->codec_id;
2155
46709
    codec->codec_tag  = par->codec_tag;
2156
2157
46709
    codec->bit_rate              = par->bit_rate;
2158
46709
    codec->bits_per_coded_sample = par->bits_per_coded_sample;
2159
46709
    codec->bits_per_raw_sample   = par->bits_per_raw_sample;
2160
46709
    codec->profile               = par->profile;
2161
46709
    codec->level                 = par->level;
2162
2163

46709
    switch (par->codec_type) {
2164
35125
    case AVMEDIA_TYPE_VIDEO:
2165
35125
        codec->pix_fmt                = par->format;
2166
35125
        codec->width                  = par->width;
2167
35125
        codec->height                 = par->height;
2168
35125
        codec->field_order            = par->field_order;
2169
35125
        codec->color_range            = par->color_range;
2170
35125
        codec->color_primaries        = par->color_primaries;
2171
35125
        codec->color_trc              = par->color_trc;
2172
35125
        codec->colorspace             = par->color_space;
2173
35125
        codec->chroma_sample_location = par->chroma_location;
2174
35125
        codec->sample_aspect_ratio    = par->sample_aspect_ratio;
2175
35125
        codec->has_b_frames           = par->video_delay;
2176
35125
        break;
2177
10907
    case AVMEDIA_TYPE_AUDIO:
2178
10907
        codec->sample_fmt       = par->format;
2179
10907
        codec->channel_layout   = par->channel_layout;
2180
10907
        codec->channels         = par->channels;
2181
10907
        codec->sample_rate      = par->sample_rate;
2182
10907
        codec->block_align      = par->block_align;
2183
10907
        codec->frame_size       = par->frame_size;
2184
10907
        codec->delay            =
2185
10907
        codec->initial_padding  = par->initial_padding;
2186
10907
        codec->trailing_padding = par->trailing_padding;
2187
10907
        codec->seek_preroll     = par->seek_preroll;
2188
10907
        break;
2189
320
    case AVMEDIA_TYPE_SUBTITLE:
2190
320
        codec->width  = par->width;
2191
320
        codec->height = par->height;
2192
320
        break;
2193
    }
2194
2195
46709
    if (par->extradata) {
2196
7003
        av_freep(&codec->extradata);
2197
7003
        codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2198
7003
        if (!codec->extradata)
2199
            return AVERROR(ENOMEM);
2200
7003
        memcpy(codec->extradata, par->extradata, par->extradata_size);
2201
7003
        codec->extradata_size = par->extradata_size;
2202
    }
2203
2204
46709
    return 0;
2205
}
2206
2207
int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2208
                     void **data, size_t *sei_size)
2209
{
2210
    AVFrameSideData *side_data = NULL;
2211
    uint8_t *sei_data;
2212
2213
    if (frame)
2214
        side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2215
2216
    if (!side_data) {
2217
        *data = NULL;
2218
        return 0;
2219
    }
2220
2221
    *sei_size = side_data->size + 11;
2222
    *data = av_mallocz(*sei_size + prefix_len);
2223
    if (!*data)
2224
        return AVERROR(ENOMEM);
2225
    sei_data = (uint8_t*)*data + prefix_len;
2226
2227
    // country code
2228
    sei_data[0] = 181;
2229
    sei_data[1] = 0;
2230
    sei_data[2] = 49;
2231
2232
    /**
2233
     * 'GA94' is standard in North America for ATSC, but hard coding
2234
     * this style may not be the right thing to do -- other formats
2235
     * do exist. This information is not available in the side_data
2236
     * so we are going with this right now.
2237
     */
2238
    AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2239
    sei_data[7] = 3;
2240
    sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2241
    sei_data[9] = 0;
2242
2243
    memcpy(sei_data + 10, side_data->data, side_data->size);
2244
2245
    sei_data[side_data->size+10] = 255;
2246
2247
    return 0;
2248
}
2249
2250
static unsigned bcd2uint(uint8_t bcd)
2251
{
2252
    unsigned low  = bcd & 0xf;
2253
    unsigned high = bcd >> 4;
2254
    if (low > 9 || high > 9)
2255
        return 0;
2256
    return low + 10*high;
2257
}
2258
2259
int ff_alloc_timecode_sei(const AVFrame *frame, size_t prefix_len,
2260
                     void **data, size_t *sei_size)
2261
{
2262
    AVFrameSideData *sd = NULL;
2263
    uint8_t *sei_data;
2264
    PutBitContext pb;
2265
    uint32_t *tc;
2266
    int m;
2267
2268
    if (frame)
2269
        sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE);
2270
2271
    if (!sd) {
2272
        *data = NULL;
2273
        return 0;
2274
    }
2275
    tc =  (uint32_t*)sd->data;
2276
    m  = tc[0] & 3;
2277
2278
    *sei_size = sizeof(uint32_t) * 4;
2279
    *data = av_mallocz(*sei_size + prefix_len);
2280
    if (!*data)
2281
        return AVERROR(ENOMEM);
2282
    sei_data = (uint8_t*)*data + prefix_len;
2283
2284
    init_put_bits(&pb, sei_data, *sei_size);
2285
    put_bits(&pb, 2, m); // num_clock_ts
2286
2287
    for (int j = 1; j <= m; j++) {
2288
        uint32_t tcsmpte = tc[j];
2289
        unsigned hh   = bcd2uint(tcsmpte     & 0x3f);    // 6-bit hours
2290
        unsigned mm   = bcd2uint(tcsmpte>>8  & 0x7f);    // 7-bit minutes
2291
        unsigned ss   = bcd2uint(tcsmpte>>16 & 0x7f);    // 7-bit seconds
2292
        unsigned ff   = bcd2uint(tcsmpte>>24 & 0x3f);    // 6-bit frames
2293
        unsigned drop = tcsmpte & 1<<30 && !0;  // 1-bit drop if not arbitrary bit
2294
2295
        put_bits(&pb, 1, 1); // clock_timestamp_flag
2296
        put_bits(&pb, 1, 1); // units_field_based_flag
2297
        put_bits(&pb, 5, 0); // counting_type
2298
        put_bits(&pb, 1, 1); // full_timestamp_flag
2299
        put_bits(&pb, 1, 0); // discontinuity_flag
2300
        put_bits(&pb, 1, drop);
2301
        put_bits(&pb, 9, ff);
2302
        put_bits(&pb, 6, ss);
2303
        put_bits(&pb, 6, mm);
2304
        put_bits(&pb, 5, hh);
2305
        put_bits(&pb, 5, 0);
2306
    }
2307
    flush_put_bits(&pb);
2308
2309
    return 0;
2310
}
2311
2312
4117
int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2313
{
2314
4117
    AVRational framerate = avctx->framerate;
2315
4117
    int bits_per_coded_sample = avctx->bits_per_coded_sample;
2316
    int64_t bitrate;
2317
2318

4117
    if (!(framerate.num && framerate.den))
2319
1
        framerate = av_inv_q(avctx->time_base);
2320

4117
    if (!(framerate.num && framerate.den))
2321
        return 0;
2322
2323
4117
    if (!bits_per_coded_sample) {
2324
        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2325
        bits_per_coded_sample = av_get_bits_per_pixel(desc);
2326
    }
2327
4117
    bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2328
4117
              framerate.num / framerate.den;
2329
2330
4117
    return bitrate;
2331
}
2332
2333
2400
int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2334
                                const int * array_valid_values, int default_value)
2335
{
2336
2400
    int i = 0, ref_val;
2337
2338
    while (1) {
2339
6400
        ref_val = array_valid_values[i];
2340
6400
        if (ref_val == INT_MAX)
2341
            break;
2342
6400
        if (val == ref_val)
2343
2400
            return val;
2344
4000
        i++;
2345
    }
2346
    /* val is not a valid value */
2347
    av_log(ctx, AV_LOG_DEBUG,
2348
           "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2349
    return default_value;
2350
}