FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/avcodec.c
Date: 2025-07-28 20:30:09
Exec Total Coverage
Lines: 355 454 78.2%
Functions: 15 15 100.0%
Branches: 304 434 70.0%
Line Branch Exec Source
1 /*
2 * AVCodecContext functions for libavcodec
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /**
22 * @file
23 * AVCodecContext functions for libavcodec
24 */
25
26 #include "config.h"
27 #include "libavutil/avassert.h"
28 #include "libavutil/avstring.h"
29 #include "libavutil/bprint.h"
30 #include "libavutil/channel_layout.h"
31 #include "libavutil/common.h"
32 #include "libavutil/emms.h"
33 #include "libavutil/fifo.h"
34 #include "libavutil/imgutils.h"
35 #include "libavutil/mem.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/thread.h"
38 #include "avcodec.h"
39 #include "avcodec_internal.h"
40 #include "bsf.h"
41 #include "codec_desc.h"
42 #include "codec_internal.h"
43 #include "decode.h"
44 #include "encode.h"
45 #include "frame_thread_encoder.h"
46 #include "hwconfig.h"
47 #include "internal.h"
48 #include "libavutil/refstruct.h"
49 #include "thread.h"
50
51 /**
52 * Maximum size in bytes of extradata.
53 * This value was chosen such that every bit of the buffer is
54 * addressable by a 32-bit signed integer as used by get_bits.
55 */
56 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE)
57
58 const SideDataMap ff_sd_global_map[] = {
59 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
60 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
61 { AV_PKT_DATA_SPHERICAL, AV_FRAME_DATA_SPHERICAL },
62 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
63 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
64 { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA },
65 { AV_PKT_DATA_CONTENT_LIGHT_LEVEL, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL },
66 { AV_PKT_DATA_ICC_PROFILE, AV_FRAME_DATA_ICC_PROFILE },
67 { AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT,AV_FRAME_DATA_AMBIENT_VIEWING_ENVIRONMENT },
68 { AV_PKT_DATA_3D_REFERENCE_DISPLAYS, AV_FRAME_DATA_3D_REFERENCE_DISPLAYS },
69 { AV_PKT_DATA_NB },
70 };
71
72
73 24693 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
74 {
75 size_t i;
76
77
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 1411583 for (i = 0; i < count; i++) {
78 1386890 size_t offset = i * size;
79
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 1386890 int r = func(c, FF_PTR_ADD((char *)arg, offset));
80
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 1386890 if (ret)
81 930 ret[i] = r;
82 }
83 24693 emms_c();
84 24693 return 0;
85 }
86
87 8770 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
88 {
89 int i;
90
91
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 253612 for (i = 0; i < count; i++) {
92 244842 int r = func(c, arg, i, 0);
93
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 244842 if (ret)
94 50 ret[i] = r;
95 }
96 8770 emms_c();
97 8770 return 0;
98 }
99
100 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
101
102 65831 static void lock_avcodec(const FFCodec *codec)
103 {
104
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 65831 if (codec->caps_internal & FF_CODEC_CAP_NOT_INIT_THREADSAFE && codec->init)
105 ✗ ff_mutex_lock(&codec_mutex);
106 65831 }
107
108 65831 static void unlock_avcodec(const FFCodec *codec)
109 {
110
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 65831 if (codec->caps_internal & FF_CODEC_CAP_NOT_INIT_THREADSAFE && codec->init)
111 ✗ ff_mutex_unlock(&codec_mutex);
112 65831 }
113
114 28274 static int64_t get_bit_rate(AVCodecContext *ctx)
115 {
116 int64_t bit_rate;
117 int bits_per_sample;
118
119
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 28274 switch (ctx->codec_type) {
120 23419 case AVMEDIA_TYPE_VIDEO:
121 case AVMEDIA_TYPE_DATA:
122 case AVMEDIA_TYPE_SUBTITLE:
123 case AVMEDIA_TYPE_ATTACHMENT:
124 23419 bit_rate = ctx->bit_rate;
125 23419 break;
126 4855 case AVMEDIA_TYPE_AUDIO:
127 4855 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
128
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 4855 if (bits_per_sample) {
129 2441 bit_rate = ctx->sample_rate * (int64_t)ctx->ch_layout.nb_channels;
130
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 2441 if (bit_rate > INT64_MAX / bits_per_sample) {
131 ✗ bit_rate = 0;
132 } else
133 2441 bit_rate *= bits_per_sample;
134 } else
135 2414 bit_rate = ctx->bit_rate;
136 4855 break;
137 ✗ default:
138 ✗ bit_rate = 0;
139 ✗ break;
140 }
141 28274 return bit_rate;
142 }
143
144 37045 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
145 {
146 37045 int ret = 0;
147 AVCodecInternal *avci;
148 const FFCodec *codec2;
149 const AVDictionaryEntry *e;
150
151
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 37045 if (avcodec_is_open(avctx))
152 ✗ return 0;
153
154
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 37045 if (!codec && !avctx->codec) {
155 ✗ av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
156 ✗ return AVERROR(EINVAL);
157 }
158
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 37045 if (codec && avctx->codec && codec != avctx->codec) {
159 ✗ av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
160 ✗ "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
161 ✗ return AVERROR(EINVAL);
162 }
163
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 37045 if (!codec)
164 27 codec = avctx->codec;
165 37045 codec2 = ffcodec(codec);
166
167
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 37045 if ((avctx->codec_type != AVMEDIA_TYPE_UNKNOWN && avctx->codec_type != codec->type) ||
168
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 37045 (avctx->codec_id != AV_CODEC_ID_NONE && avctx->codec_id != codec->id)) {
169 ✗ av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
170 ✗ return AVERROR(EINVAL);
171 }
172
173 37045 avctx->codec_type = codec->type;
174 37045 avctx->codec_id = codec->id;
175 37045 avctx->codec = codec;
176
177
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 37045 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
178 ✗ return AVERROR(EINVAL);
179
180 // set the whitelist from provided options dict,
181 // so we can check it immediately
182
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 37045 e = options ? av_dict_get(*options, "codec_whitelist", NULL, 0) : NULL;
183
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 37045 if (e) {
184 ✗ ret = av_opt_set(avctx, e->key, e->value, 0);
185 ✗ if (ret < 0)
186 ✗ return ret;
187 }
188
189
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 37045 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
190 ✗ av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
191 ✗ return AVERROR(EINVAL);
192 }
193
194
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 37045 avci = ff_codec_is_decoder(codec) ?
195 15706 ff_decode_internal_alloc() :
196 21339 ff_encode_internal_alloc();
197
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 37045 if (!avci) {
198 ✗ ret = AVERROR(ENOMEM);
199 ✗ goto end;
200 }
201 37045 avctx->internal = avci;
202
203 37045 avci->buffer_frame = av_frame_alloc();
204 37045 avci->buffer_pkt = av_packet_alloc();
205
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 37045 if (!avci->buffer_frame || !avci->buffer_pkt) {
206 ✗ ret = AVERROR(ENOMEM);
207 ✗ goto free_and_end;
208 }
209
210
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 37045 if (codec2->priv_data_size > 0) {
211
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 16363 if (!avctx->priv_data) {
212 8262 avctx->priv_data = av_mallocz(codec2->priv_data_size);
213
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 8262 if (!avctx->priv_data) {
214 ✗ ret = AVERROR(ENOMEM);
215 ✗ goto free_and_end;
216 }
217
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 8262 if (codec->priv_class) {
218 2398 *(const AVClass **)avctx->priv_data = codec->priv_class;
219 2398 av_opt_set_defaults(avctx->priv_data);
220 }
221 }
222 } else {
223 20682 avctx->priv_data = NULL;
224 }
225
226 37045 ret = av_opt_set_dict2(avctx, options, AV_OPT_SEARCH_CHILDREN);
227
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 37045 if (ret < 0)
228 ✗ goto free_and_end;
229
230 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
231
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 37045 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
232
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 6 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
233
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 37045 if (avctx->coded_width && avctx->coded_height)
234 32 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
235
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 37013 else if (avctx->width && avctx->height)
236 27868 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
237
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 37045 if (ret < 0)
238 ✗ goto free_and_end;
239 }
240
241
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 37045 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
242
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 27900 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
243
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 27900 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
244 ✗ av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
245 ✗ ff_set_dimensions(avctx, 0, 0);
246 }
247
248
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 37045 if (avctx->width > 0 && avctx->height > 0) {
249
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 27900 if (av_image_check_sar(avctx->width, avctx->height,
250 avctx->sample_aspect_ratio) < 0) {
251 ✗ av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
252 avctx->sample_aspect_ratio.num,
253 avctx->sample_aspect_ratio.den);
254 ✗ avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
255 }
256 }
257
258 /* AV_CODEC_CAP_CHANNEL_CONF is a decoder-only flag; so the code below
259 * in particular checks that sample_rate is set for all audio encoders. */
260
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 37045 if (avctx->sample_rate < 0 ||
261
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 37045 avctx->sample_rate == 0 && avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
262
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 242 !(codec->capabilities & AV_CODEC_CAP_CHANNEL_CONF)) {
263 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
264 ✗ ret = AVERROR(EINVAL);
265 ✗ goto free_and_end;
266 }
267
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 37045 if (avctx->block_align < 0) {
268 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
269 ✗ ret = AVERROR(EINVAL);
270 ✗ goto free_and_end;
271 }
272
273 /* AV_CODEC_CAP_CHANNEL_CONF is a decoder-only flag; so the code below
274 * in particular checks that nb_channels is set for all audio encoders. */
275
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 37045 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && !avctx->ch_layout.nb_channels
276
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 239 && !(codec->capabilities & AV_CODEC_CAP_CHANNEL_CONF)) {
277 ✗ av_log(avctx, AV_LOG_ERROR, "%s requires channel layout to be set\n",
278 ✗ ff_codec_is_decoder(codec) ? "Decoder" : "Encoder");
279 ✗ ret = AVERROR(EINVAL);
280 ✗ goto free_and_end;
281 }
282
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 37045 if (avctx->ch_layout.nb_channels && !av_channel_layout_check(&avctx->ch_layout)) {
283 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid channel layout\n");
284 ✗ ret = AVERROR(EINVAL);
285 ✗ goto free_and_end;
286 }
287
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 37045 if (avctx->ch_layout.nb_channels > FF_SANE_NB_CHANNELS) {
288 ✗ av_log(avctx, AV_LOG_ERROR, "Too many channels: %d\n", avctx->ch_layout.nb_channels);
289 ✗ ret = AVERROR(EINVAL);
290 ✗ goto free_and_end;
291 }
292
293 37045 avctx->frame_num = 0;
294 37045 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
295
296
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 37045 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
297
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 7 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
298 ✗ const char *codec_string = ff_codec_is_encoder(codec) ? "encoder" : "decoder";
299 const AVCodec *codec2;
300 ✗ av_log(avctx, AV_LOG_ERROR,
301 "The %s '%s' is experimental but experimental codecs are not enabled, "
302 "add '-strict %d' if you want to use it.\n",
303 ✗ codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
304 ✗ codec2 = ff_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
305 ✗ if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
306 ✗ av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
307 ✗ codec_string, codec2->name);
308 ✗ ret = AVERROR_EXPERIMENTAL;
309 ✗ goto free_and_end;
310 }
311
312
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 37045 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
313
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 4717 (!avctx->time_base.num || !avctx->time_base.den)) {
314 3384 avctx->time_base.num = 1;
315 3384 avctx->time_base.den = avctx->sample_rate;
316 }
317
318
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 37045 if (ff_codec_is_encoder(avctx->codec))
319 21339 ret = ff_encode_preinit(avctx);
320 else
321 15706 ret = ff_decode_preinit(avctx);
322
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 37045 if (ret < 0)
323 ✗ goto free_and_end;
324
325
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 37045 if (HAVE_THREADS && !avci->frame_thread_encoder) {
326 /* Frame-threaded decoders call FFCodec.init for their child contexts. */
327 35397 lock_avcodec(codec2);
328 35397 ret = ff_thread_init(avctx);
329 35397 unlock_avcodec(codec2);
330
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 35397 if (ret < 0) {
331 ✗ goto free_and_end;
332 }
333 }
334 if (!HAVE_THREADS && !(codec2->caps_internal & FF_CODEC_CAP_AUTO_THREADS))
335 avctx->thread_count = 1;
336
337
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 37045 if (!(avctx->active_thread_type & FF_THREAD_FRAME) ||
338
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 1658 avci->frame_thread_encoder) {
339
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 37035 if (codec2->init) {
340 30434 lock_avcodec(codec2);
341 30434 ret = codec2->init(avctx);
342 30434 unlock_avcodec(codec2);
343
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 30434 if (ret < 0) {
344 8 avci->needs_close = codec2->caps_internal & FF_CODEC_CAP_INIT_CLEANUP;
345 8 goto free_and_end;
346 }
347 }
348 37027 avci->needs_close = 1;
349 }
350
351 37037 ret=0;
352
353
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 37037 if (ff_codec_is_decoder(avctx->codec)) {
354
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 15698 if (!avctx->bit_rate)
355 11018 avctx->bit_rate = get_bit_rate(avctx);
356
357 /* validate channel layout from the decoder */
358
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 15698 if ((avctx->ch_layout.nb_channels && !av_channel_layout_check(&avctx->ch_layout)) ||
359
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 15698 avctx->ch_layout.nb_channels > FF_SANE_NB_CHANNELS) {
360 ✗ ret = AVERROR(EINVAL);
361 ✗ goto free_and_end;
362 }
363
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 15698 if (avctx->bits_per_coded_sample < 0) {
364 ✗ ret = AVERROR(EINVAL);
365 ✗ goto free_and_end;
366 }
367 }
368
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 37037 if (codec->priv_class)
369
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 5178 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
370
371 37037 end:
372
373 37045 return ret;
374 8 free_and_end:
375 8 ff_codec_close(avctx);
376 8 goto end;
377 }
378
379 104 void avcodec_flush_buffers(AVCodecContext *avctx)
380 {
381 104 AVCodecInternal *avci = avctx->internal;
382
383
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 104 if (av_codec_is_encoder(avctx->codec)) {
384 ✗ int caps = avctx->codec->capabilities;
385
386 ✗ if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
387 // Only encoders that explicitly declare support for it can be
388 // flushed. Otherwise, this is a no-op.
389 ✗ av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
390 "that doesn't support it\n");
391 ✗ return;
392 }
393 ✗ ff_encode_flush_buffers(avctx);
394 } else
395 104 ff_decode_flush_buffers(avctx);
396
397 104 avci->draining = 0;
398 104 avci->draining_done = 0;
399
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 104 if (avci->buffer_frame)
400 104 av_frame_unref(avci->buffer_frame);
401
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 104 if (avci->buffer_pkt)
402 104 av_packet_unref(avci->buffer_pkt);
403
404
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 104 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME &&
405 ✗ !avci->is_frame_mt)
406 ✗ ff_thread_flush(avctx);
407
2/2
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 104 else if (ffcodec(avctx->codec)->flush)
408 31 ffcodec(avctx->codec)->flush(avctx);
409 }
410
411 915 void avsubtitle_free(AVSubtitle *sub)
412 {
413 int i;
414
415
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 1775 for (i = 0; i < sub->num_rects; i++) {
416 860 AVSubtitleRect *const rect = sub->rects[i];
417
418 860 av_freep(&rect->data[0]);
419 860 av_freep(&rect->data[1]);
420 860 av_freep(&rect->data[2]);
421 860 av_freep(&rect->data[3]);
422 860 av_freep(&rect->text);
423 860 av_freep(&rect->ass);
424
425 860 av_freep(&sub->rects[i]);
426 }
427
428 915 av_freep(&sub->rects);
429
430 915 memset(sub, 0, sizeof(*sub));
431 915 }
432
433 63529 av_cold void ff_codec_close(AVCodecContext *avctx)
434 {
435 int i;
436
437
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 63529 if (avcodec_is_open(avctx)) {
438 37045 AVCodecInternal *avci = avctx->internal;
439
440 37045 if (CONFIG_FRAME_THREAD_ENCODER &&
441
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 37045 avci->frame_thread_encoder && avctx->thread_count > 1) {
442 1648 ff_frame_thread_encoder_free(avctx);
443 }
444
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 37045 if (HAVE_THREADS && avci->thread_ctx)
445 35 ff_thread_free(avctx);
446
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 37045 if (avci->needs_close && ffcodec(avctx->codec)->close)
447 7439 ffcodec(avctx->codec)->close(avctx);
448 37045 avci->byte_buffer_size = 0;
449 37045 av_freep(&avci->byte_buffer);
450 37045 av_frame_free(&avci->buffer_frame);
451 37045 av_packet_free(&avci->buffer_pkt);
452 37045 av_packet_free(&avci->last_pkt_props);
453
454 37045 av_packet_free(&avci->in_pkt);
455 37045 av_frame_free(&avci->in_frame);
456 37045 av_frame_free(&avci->recon_frame);
457
458 37045 av_refstruct_unref(&avci->pool);
459 37045 av_refstruct_pool_uninit(&avci->progress_frame_pool);
460
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 37045 if (av_codec_is_decoder(avctx->codec))
461 15706 ff_decode_internal_uninit(avctx);
462
463 37045 ff_hwaccel_uninit(avctx);
464
465 37045 av_bsf_free(&avci->bsf);
466
467 #if CONFIG_LCMS2
468 ff_icc_context_uninit(&avci->icc);
469 #endif
470
471 37045 av_freep(&avctx->internal);
472 }
473
474
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 67827 for (i = 0; i < avctx->nb_coded_side_data; i++)
475 4298 av_freep(&avctx->coded_side_data[i].data);
476 63529 av_freep(&avctx->coded_side_data);
477 63529 avctx->nb_coded_side_data = 0;
478 63529 av_frame_side_data_free(&avctx->decoded_side_data,
479 &avctx->nb_decoded_side_data);
480
481 63529 av_buffer_unref(&avctx->hw_frames_ctx);
482 63529 av_buffer_unref(&avctx->hw_device_ctx);
483
484
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 63529 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
485 7576 av_opt_free(avctx->priv_data);
486 63529 av_opt_free(avctx);
487 63529 av_freep(&avctx->priv_data);
488
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 63529 if (av_codec_is_encoder(avctx->codec)) {
489 21339 av_freep(&avctx->extradata);
490 21339 avctx->extradata_size = 0;
491
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 42190 } else if (av_codec_is_decoder(avctx->codec))
492 32339 av_freep(&avctx->subtitle_header);
493
494 63529 avctx->codec = NULL;
495 63529 avctx->active_thread_type = 0;
496 63529 }
497
498 22184 static const char *unknown_if_null(const char *str)
499 {
500
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 22184 return str ? str : "unknown";
501 }
502
503 17265 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
504 {
505 const char *codec_type;
506 const char *codec_name;
507 17265 const char *profile = NULL;
508 AVBPrint bprint;
509 int64_t bitrate;
510 17265 int new_line = 0;
511 AVRational display_aspect_ratio;
512
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 17265 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
513 const char *str;
514
515
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 17265 if (!buf || buf_size <= 0)
516 9 return;
517 17265 av_bprint_init_for_buffer(&bprint, buf, buf_size);
518 17265 codec_type = av_get_media_type_string(enc->codec_type);
519 17265 codec_name = avcodec_get_name(enc->codec_id);
520 17265 profile = avcodec_profile_name(enc->codec_id, enc->profile);
521
522
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 17265 av_bprintf(&bprint, "%s: %s", codec_type ? codec_type : "unknown",
523 codec_name);
524 17265 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
525
526
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 17265 if (enc->codec && strcmp(enc->codec->name, codec_name))
527 290 av_bprintf(&bprint, " (%s)", enc->codec->name);
528
529
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 17265 if (profile)
530 2006 av_bprintf(&bprint, " (%s)", profile);
531
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 17265 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
532
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 13373 && av_log_get_level() >= AV_LOG_VERBOSE
533 ✗ && enc->refs)
534 ✗ av_bprintf(&bprint, ", %d reference frame%s",
535 ✗ enc->refs, enc->refs > 1 ? "s" : "");
536
537
2/2
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 17265 if (enc->codec_tag)
538 9771 av_bprintf(&bprint, " (%s / 0x%04X)",
539 9771 av_fourcc2str(enc->codec_tag), enc->codec_tag);
540
541
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 17265 switch (enc->codec_type) {
542 13373 case AVMEDIA_TYPE_VIDEO:
543 {
544 unsigned len;
545
546 13373 av_bprintf(&bprint, "%s%s", separator,
547
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 13373 enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
548 13325 unknown_if_null(av_get_pix_fmt_name(enc->pix_fmt)));
549
550 13373 av_bprint_chars(&bprint, '(', 1);
551 13373 len = bprint.len;
552
553 /* The following check ensures that '(' has been written
554 * and therefore allows us to erase it if it turns out
555 * to be unnecessary. */
556
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 13373 if (!av_bprint_is_complete(&bprint))
557 ✗ return;
558
559
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 13373 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
560
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 1199 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
561 27 av_bprintf(&bprint, "%d bpc, ", enc->bits_per_raw_sample);
562
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 24408 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED &&
563 11035 (str = av_color_range_name(enc->color_range)))
564 11035 av_bprintf(&bprint, "%s, ", str);
565
566
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 13373 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
567
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 10538 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
568
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 10536 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
569 2953 const char *col = unknown_if_null(av_color_space_name(enc->colorspace));
570 2953 const char *pri = unknown_if_null(av_color_primaries_name(enc->color_primaries));
571 2953 const char *trc = unknown_if_null(av_color_transfer_name(enc->color_trc));
572
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 2953 if (strcmp(col, pri) || strcmp(col, trc)) {
573 2798 new_line = 1;
574 2798 av_bprintf(&bprint, "%s/%s/%s, ", col, pri, trc);
575 } else
576 155 av_bprintf(&bprint, "%s, ", col);
577 }
578
579
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 13373 if (enc->field_order != AV_FIELD_UNKNOWN) {
580 7489 const char *field_order = "progressive";
581
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 7489 if (enc->field_order == AV_FIELD_TT)
582 142 field_order = "top first";
583
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 7347 else if (enc->field_order == AV_FIELD_BB)
584 48 field_order = "bottom first";
585
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 7299 else if (enc->field_order == AV_FIELD_TB)
586 362 field_order = "top coded first (swapped)";
587
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 6937 else if (enc->field_order == AV_FIELD_BT)
588 126 field_order = "bottom coded first (swapped)";
589
590 7489 av_bprintf(&bprint, "%s, ", field_order);
591 }
592
593
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 13373 if (av_log_get_level() >= AV_LOG_VERBOSE &&
594 ✗ enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED &&
595 ✗ (str = av_chroma_location_name(enc->chroma_sample_location)))
596 ✗ av_bprintf(&bprint, "%s, ", str);
597
598
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 13373 if (len == bprint.len) {
599 1074 bprint.str[len - 1] = '\0';
600 1074 bprint.len--;
601 } else {
602
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 12299 if (bprint.len - 2 < bprint.size) {
603 /* Erase the last ", " */
604 12299 bprint.len -= 2;
605 12299 bprint.str[bprint.len] = '\0';
606 }
607 12299 av_bprint_chars(&bprint, ')', 1);
608 }
609 }
610
611
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 13373 if (enc->width) {
612
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 13353 av_bprintf(&bprint, "%s%dx%d", new_line ? separator : ", ",
613 enc->width, enc->height);
614
615
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 13353 if (av_log_get_level() >= AV_LOG_VERBOSE &&
616 ✗ enc->coded_width && enc->coded_height &&
617 ✗ (enc->width != enc->coded_width ||
618 ✗ enc->height != enc->coded_height))
619 ✗ av_bprintf(&bprint, " (%dx%d)",
620 enc->coded_width, enc->coded_height);
621
622
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 13353 if (enc->sample_aspect_ratio.num) {
623 2513 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
624 2513 enc->width * (int64_t)enc->sample_aspect_ratio.num,
625 2513 enc->height * (int64_t)enc->sample_aspect_ratio.den,
626 1024 * 1024);
627 2513 av_bprintf(&bprint, " [SAR %d:%d DAR %d:%d]",
628 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
629 display_aspect_ratio.num, display_aspect_ratio.den);
630 }
631
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 13353 if (av_log_get_level() >= AV_LOG_DEBUG) {
632 ✗ int g = av_gcd(enc->time_base.num, enc->time_base.den);
633 ✗ av_bprintf(&bprint, ", %d/%d",
634 ✗ enc->time_base.num / g, enc->time_base.den / g);
635 }
636 }
637
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 13373 if (encode) {
638 7147 av_bprintf(&bprint, ", q=%d-%d", enc->qmin, enc->qmax);
639 } else {
640 #if FF_API_CODEC_PROPS
641 FF_DISABLE_DEPRECATION_WARNINGS
642
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 6226 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
643 ✗ av_bprintf(&bprint, ", Closed Captions");
644
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 6226 if (enc->properties & FF_CODEC_PROPERTY_FILM_GRAIN)
645 ✗ av_bprintf(&bprint, ", Film Grain");
646
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 6226 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
647 ✗ av_bprintf(&bprint, ", lossless");
648 FF_ENABLE_DEPRECATION_WARNINGS
649 #endif
650 }
651 13373 break;
652 3637 case AVMEDIA_TYPE_AUDIO:
653 3637 av_bprintf(&bprint, "%s", separator);
654
655
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 3637 if (enc->sample_rate) {
656 3621 av_bprintf(&bprint, "%d Hz, ", enc->sample_rate);
657 }
658 3637 av_channel_layout_describe_bprint(&enc->ch_layout, &bprint);
659
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 7274 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE &&
660 3637 (str = av_get_sample_fmt_name(enc->sample_fmt))) {
661 3637 av_bprintf(&bprint, ", %s", str);
662 }
663
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 3637 if ( enc->bits_per_raw_sample > 0
664
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 1936 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
665 218 av_bprintf(&bprint, " (%d bit)", enc->bits_per_raw_sample);
666
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 3637 if (av_log_get_level() >= AV_LOG_VERBOSE) {
667
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 4 if (enc->initial_padding)
668 2 av_bprintf(&bprint, ", delay %d", enc->initial_padding);
669
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 4 if (enc->trailing_padding)
670 ✗ av_bprintf(&bprint, ", padding %d", enc->trailing_padding);
671 }
672 3637 break;
673 86 case AVMEDIA_TYPE_DATA:
674
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 86 if (av_log_get_level() >= AV_LOG_DEBUG) {
675 ✗ int g = av_gcd(enc->time_base.num, enc->time_base.den);
676 ✗ if (g)
677 ✗ av_bprintf(&bprint, ", %d/%d",
678 ✗ enc->time_base.num / g, enc->time_base.den / g);
679 }
680 86 break;
681 160 case AVMEDIA_TYPE_SUBTITLE:
682
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 160 if (enc->width)
683 33 av_bprintf(&bprint, ", %dx%d", enc->width, enc->height);
684 160 break;
685 9 default:
686 9 return;
687 }
688
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 17256 if (encode) {
689
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 8909 if (enc->flags & AV_CODEC_FLAG_PASS1)
690 ✗ av_bprintf(&bprint, ", pass 1");
691
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 8909 if (enc->flags & AV_CODEC_FLAG_PASS2)
692 ✗ av_bprintf(&bprint, ", pass 2");
693 }
694 17256 bitrate = get_bit_rate(enc);
695
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 17256 if (bitrate != 0) {
696 11163 av_bprintf(&bprint, ", %"PRId64" kb/s", bitrate / 1000);
697
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 6093 } else if (enc->rc_max_rate > 0) {
698 ✗ av_bprintf(&bprint, ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
699 }
700 }
701
702 2849623 int avcodec_is_open(AVCodecContext *s)
703 {
704 2849623 return !!s->internal;
705 }
706
707 794117 int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
708 {
709 794117 av_frame_unref(frame);
710
711
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 794117 if (!avcodec_is_open(avctx) || !avctx->codec)
712 ✗ return AVERROR(EINVAL);
713
714
2/2
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 794117 if (ff_codec_is_decoder(avctx->codec))
715 794055 return ff_decode_receive_frame(avctx, frame);
716 62 return ff_encode_receive_frame(avctx, frame);
717 }
718
719 #define WRAP_CONFIG(allowed_type, field, field_type, terminator) \
720 do { \
721 static const field_type end = terminator; \
722 if (codec->type != (allowed_type)) \
723 return AVERROR(EINVAL); \
724 *out_configs = (field); \
725 if (out_num_configs) { \
726 for (int i = 0;; i++) { \
727 if (!(field) || !memcmp(&(field)[i], &end, sizeof(end))) { \
728 *out_num_configs = i; \
729 break; \
730 } \
731 } \
732 } \
733 return 0; \
734 } while (0)
735
736 static const enum AVColorRange color_range_jpeg[] = {
737 AVCOL_RANGE_JPEG, AVCOL_RANGE_UNSPECIFIED
738 };
739
740 static const enum AVColorRange color_range_mpeg[] = {
741 AVCOL_RANGE_MPEG, AVCOL_RANGE_UNSPECIFIED
742 };
743
744 static const enum AVColorRange color_range_all[] = {
745 AVCOL_RANGE_MPEG, AVCOL_RANGE_JPEG, AVCOL_RANGE_UNSPECIFIED
746 };
747
748 static const enum AVColorRange *color_range_table[] = {
749 [AVCOL_RANGE_MPEG] = color_range_mpeg,
750 [AVCOL_RANGE_JPEG] = color_range_jpeg,
751 [AVCOL_RANGE_MPEG | AVCOL_RANGE_JPEG] = color_range_all,
752 };
753
754 60381 int ff_default_get_supported_config(const AVCodecContext *avctx,
755 const AVCodec *codec,
756 enum AVCodecConfig config,
757 unsigned flags,
758 const void **out_configs,
759 int *out_num_configs)
760 {
761
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 60381 switch (config) {
762 FF_DISABLE_DEPRECATION_WARNINGS
763 32029 case AV_CODEC_CONFIG_PIX_FORMAT:
764
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 51931 WRAP_CONFIG(AVMEDIA_TYPE_VIDEO, codec->pix_fmts, enum AVPixelFormat, AV_PIX_FMT_NONE);
765 6777 case AV_CODEC_CONFIG_FRAME_RATE:
766
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 9586 WRAP_CONFIG(AVMEDIA_TYPE_VIDEO, codec->supported_framerates, AVRational, {0});
767 2682 case AV_CODEC_CONFIG_SAMPLE_RATE:
768
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 3400 WRAP_CONFIG(AVMEDIA_TYPE_AUDIO, codec->supported_samplerates, int, 0);
769 2682 case AV_CODEC_CONFIG_SAMPLE_FORMAT:
770
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 5584 WRAP_CONFIG(AVMEDIA_TYPE_AUDIO, codec->sample_fmts, enum AVSampleFormat, AV_SAMPLE_FMT_NONE);
771 2682 case AV_CODEC_CONFIG_CHANNEL_LAYOUT:
772
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 3454 WRAP_CONFIG(AVMEDIA_TYPE_AUDIO, codec->ch_layouts, AVChannelLayout, {0});
773 FF_ENABLE_DEPRECATION_WARNINGS
774
775 6751 case AV_CODEC_CONFIG_COLOR_RANGE:
776
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 6751 if (codec->type != AVMEDIA_TYPE_VIDEO)
777 ✗ return AVERROR(EINVAL);
778 6751 *out_configs = color_range_table[ffcodec(codec)->color_ranges];
779
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 6751 if (out_num_configs)
780 6751 *out_num_configs = av_popcount(ffcodec(codec)->color_ranges);
781 6751 return 0;
782
783 6778 case AV_CODEC_CONFIG_COLOR_SPACE:
784 6778 *out_configs = NULL;
785
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 6778 if (out_num_configs)
786 6778 *out_num_configs = 0;
787 6778 return 0;
788 ✗ default:
789 ✗ return AVERROR(EINVAL);
790 }
791 }
792
793 60408 int avcodec_get_supported_config(const AVCodecContext *avctx, const AVCodec *codec,
794 enum AVCodecConfig config, unsigned flags,
795 const void **out, int *out_num)
796 {
797 const FFCodec *codec2;
798 60408 int dummy_num = 0;
799
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 60408 if (!codec)
800 60408 codec = avctx->codec;
801
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 60408 if (!out_num)
802 36409 out_num = &dummy_num;
803
804 60408 codec2 = ffcodec(codec);
805
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 60408 if (codec2->get_supported_config) {
806 160 return codec2->get_supported_config(avctx, codec, config, flags, out, out_num);
807 } else {
808 60248 return ff_default_get_supported_config(avctx, codec, config, flags, out, out_num);
809 }
810 }
811