Directory: | ../../../ffmpeg/ |
---|---|
File: | src/libavcodec/avcodec.c |
Date: | 2022-07-04 00:18:54 |
Exec | Total | Coverage | |
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Lines: | 337 | 432 | 78.0% |
Branches: | 275 | 382 | 72.0% |
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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/fifo.h" | ||
32 | #include "libavutil/imgutils.h" | ||
33 | #include "libavutil/mem.h" | ||
34 | #include "libavutil/opt.h" | ||
35 | #include "libavutil/thread.h" | ||
36 | #include "avcodec.h" | ||
37 | #include "bsf.h" | ||
38 | #include "codec_internal.h" | ||
39 | #include "decode.h" | ||
40 | #include "encode.h" | ||
41 | #include "frame_thread_encoder.h" | ||
42 | #include "internal.h" | ||
43 | #include "thread.h" | ||
44 | |||
45 | 48042 | int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) | |
46 | { | ||
47 | int i; | ||
48 | |||
49 |
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1393066 | for (i = 0; i < count; i++) { |
50 | 1345024 | int r = func(c, (char *)arg + i * size); | |
51 |
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1345024 | if (ret) |
52 | 28407 | ret[i] = r; | |
53 | } | ||
54 | 48042 | emms_c(); | |
55 | 48042 | return 0; | |
56 | } | ||
57 | |||
58 | 7034 | int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count) | |
59 | { | ||
60 | int i; | ||
61 | |||
62 |
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250926 | for (i = 0; i < count; i++) { |
63 | 243892 | int r = func(c, arg, i, 0); | |
64 |
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243892 | if (ret) |
65 | 50 | ret[i] = r; | |
66 | } | ||
67 | 7034 | emms_c(); | |
68 | 7034 | return 0; | |
69 | } | ||
70 | |||
71 | static AVMutex codec_mutex = AV_MUTEX_INITIALIZER; | ||
72 | |||
73 | 56283 | static void lock_avcodec(const FFCodec *codec) | |
74 | { | ||
75 |
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56283 | if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init) |
76 | ✗ | ff_mutex_lock(&codec_mutex); | |
77 | 56283 | } | |
78 | |||
79 | 56283 | static void unlock_avcodec(const FFCodec *codec) | |
80 | { | ||
81 |
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56283 | if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init) |
82 | ✗ | ff_mutex_unlock(&codec_mutex); | |
83 | 56283 | } | |
84 | |||
85 | 22485 | static int64_t get_bit_rate(AVCodecContext *ctx) | |
86 | { | ||
87 | int64_t bit_rate; | ||
88 | int bits_per_sample; | ||
89 | |||
90 |
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22485 | switch (ctx->codec_type) { |
91 | 18720 | case AVMEDIA_TYPE_VIDEO: | |
92 | case AVMEDIA_TYPE_DATA: | ||
93 | case AVMEDIA_TYPE_SUBTITLE: | ||
94 | case AVMEDIA_TYPE_ATTACHMENT: | ||
95 | 18720 | bit_rate = ctx->bit_rate; | |
96 | 18720 | break; | |
97 | 3765 | case AVMEDIA_TYPE_AUDIO: | |
98 | 3765 | bits_per_sample = av_get_bits_per_sample(ctx->codec_id); | |
99 |
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3765 | if (bits_per_sample) { |
100 | 2212 | bit_rate = ctx->sample_rate * (int64_t)ctx->ch_layout.nb_channels; | |
101 |
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2212 | if (bit_rate > INT64_MAX / bits_per_sample) { |
102 | ✗ | bit_rate = 0; | |
103 | } else | ||
104 | 2212 | bit_rate *= bits_per_sample; | |
105 | } else | ||
106 | 1553 | bit_rate = ctx->bit_rate; | |
107 | 3765 | break; | |
108 | ✗ | default: | |
109 | ✗ | bit_rate = 0; | |
110 | ✗ | break; | |
111 | } | ||
112 | 22485 | return bit_rate; | |
113 | } | ||
114 | |||
115 | 31568 | int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) | |
116 | { | ||
117 | 31568 | int ret = 0; | |
118 | AVCodecInternal *avci; | ||
119 | const FFCodec *codec2; | ||
120 | |||
121 |
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31568 | if (avcodec_is_open(avctx)) |
122 | ✗ | return 0; | |
123 | |||
124 |
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31568 | if (!codec && !avctx->codec) { |
125 | ✗ | av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n"); | |
126 | ✗ | return AVERROR(EINVAL); | |
127 | } | ||
128 |
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31568 | if (codec && avctx->codec && codec != avctx->codec) { |
129 | ✗ | av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, " | |
130 | ✗ | "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name); | |
131 | ✗ | return AVERROR(EINVAL); | |
132 | } | ||
133 |
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31568 | if (!codec) |
134 | 4 | codec = avctx->codec; | |
135 | 31568 | codec2 = ffcodec(codec); | |
136 | |||
137 |
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31568 | if ((avctx->codec_type != AVMEDIA_TYPE_UNKNOWN && avctx->codec_type != codec->type) || |
138 |
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31568 | (avctx->codec_id != AV_CODEC_ID_NONE && avctx->codec_id != codec->id)) { |
139 | ✗ | av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n"); | |
140 | ✗ | return AVERROR(EINVAL); | |
141 | } | ||
142 | |||
143 | 31568 | avctx->codec_type = codec->type; | |
144 | 31568 | avctx->codec_id = codec->id; | |
145 | 31568 | avctx->codec = codec; | |
146 | |||
147 |
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31568 | if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE) |
148 | ✗ | return AVERROR(EINVAL); | |
149 | |||
150 | 31568 | avci = av_mallocz(sizeof(*avci)); | |
151 |
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31568 | if (!avci) { |
152 | ✗ | ret = AVERROR(ENOMEM); | |
153 | ✗ | goto end; | |
154 | } | ||
155 | 31568 | avctx->internal = avci; | |
156 | |||
157 | 31568 | avci->buffer_frame = av_frame_alloc(); | |
158 | 31568 | avci->buffer_pkt = av_packet_alloc(); | |
159 |
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31568 | if (!avci->buffer_frame || !avci->buffer_pkt) { |
160 | ✗ | ret = AVERROR(ENOMEM); | |
161 | ✗ | goto free_and_end; | |
162 | } | ||
163 | |||
164 | 31568 | avci->skip_samples_multiplier = 1; | |
165 | |||
166 |
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31568 | if (codec2->priv_data_size > 0) { |
167 |
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13962 | if (!avctx->priv_data) { |
168 | 7016 | avctx->priv_data = av_mallocz(codec2->priv_data_size); | |
169 |
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7016 | if (!avctx->priv_data) { |
170 | ✗ | ret = AVERROR(ENOMEM); | |
171 | ✗ | goto free_and_end; | |
172 | } | ||
173 |
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7016 | if (codec->priv_class) { |
174 | 1825 | *(const AVClass **)avctx->priv_data = codec->priv_class; | |
175 | 1825 | av_opt_set_defaults(avctx->priv_data); | |
176 | } | ||
177 | } | ||
178 |
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13962 | if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, options)) < 0) |
179 | ✗ | goto free_and_end; | |
180 | } else { | ||
181 | 17606 | avctx->priv_data = NULL; | |
182 | } | ||
183 |
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31568 | if ((ret = av_opt_set_dict(avctx, options)) < 0) |
184 | ✗ | goto free_and_end; | |
185 | |||
186 |
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31568 | if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) { |
187 | ✗ | av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist); | |
188 | ✗ | ret = AVERROR(EINVAL); | |
189 | ✗ | goto free_and_end; | |
190 | } | ||
191 | |||
192 | // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions | ||
193 |
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31568 | if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && |
194 |
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12122 | (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) { |
195 |
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31568 | if (avctx->coded_width && avctx->coded_height) |
196 | 12131 | ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); | |
197 |
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19437 | else if (avctx->width && avctx->height) |
198 | 11677 | ret = ff_set_dimensions(avctx, avctx->width, avctx->height); | |
199 |
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31568 | if (ret < 0) |
200 | ✗ | goto free_and_end; | |
201 | } | ||
202 | |||
203 |
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31568 | if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height) |
204 |
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23808 | && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0 |
205 |
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23808 | || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) { |
206 | ✗ | av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n"); | |
207 | ✗ | ff_set_dimensions(avctx, 0, 0); | |
208 | } | ||
209 | |||
210 |
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31568 | if (avctx->width > 0 && avctx->height > 0) { |
211 |
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23808 | if (av_image_check_sar(avctx->width, avctx->height, |
212 | avctx->sample_aspect_ratio) < 0) { | ||
213 | ✗ | av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", | |
214 | avctx->sample_aspect_ratio.num, | ||
215 | avctx->sample_aspect_ratio.den); | ||
216 | ✗ | avctx->sample_aspect_ratio = (AVRational){ 0, 1 }; | |
217 | } | ||
218 | } | ||
219 | |||
220 |
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31568 | if (avctx->sample_rate < 0) { |
221 | ✗ | av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate); | |
222 | ✗ | ret = AVERROR(EINVAL); | |
223 | ✗ | goto free_and_end; | |
224 | } | ||
225 |
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31568 | if (avctx->block_align < 0) { |
226 | ✗ | av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align); | |
227 | ✗ | ret = AVERROR(EINVAL); | |
228 | ✗ | goto free_and_end; | |
229 | } | ||
230 | |||
231 | #if FF_API_OLD_CHANNEL_LAYOUT | ||
232 | FF_DISABLE_DEPRECATION_WARNINGS | ||
233 | /* compat wrapper for old-style callers */ | ||
234 |
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31568 | if (avctx->channel_layout && !avctx->channels) |
235 | ✗ | avctx->channels = av_popcount64(avctx->channel_layout); | |
236 | |||
237 |
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31568 | if ((avctx->channels > 0 && avctx->ch_layout.nb_channels != avctx->channels) || |
238 |
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31565 | (avctx->channel_layout && (avctx->ch_layout.order != AV_CHANNEL_ORDER_NATIVE || |
239 |
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866 | avctx->ch_layout.u.mask != avctx->channel_layout))) { |
240 |
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3 | if (avctx->channel_layout) { |
241 | ✗ | av_channel_layout_from_mask(&avctx->ch_layout, avctx->channel_layout); | |
242 | } else { | ||
243 | 3 | avctx->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC; | |
244 | 3 | avctx->ch_layout.nb_channels = avctx->channels; | |
245 | } | ||
246 | } | ||
247 | FF_ENABLE_DEPRECATION_WARNINGS | ||
248 | #endif | ||
249 | |||
250 |
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31568 | if (avctx->ch_layout.nb_channels > FF_SANE_NB_CHANNELS) { |
251 | ✗ | av_log(avctx, AV_LOG_ERROR, "Too many channels: %d\n", avctx->ch_layout.nb_channels); | |
252 | ✗ | ret = AVERROR(EINVAL); | |
253 | ✗ | goto free_and_end; | |
254 | } | ||
255 | |||
256 | 31568 | avctx->frame_number = 0; | |
257 | 31568 | avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id); | |
258 | |||
259 |
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31568 | if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) && |
260 |
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7 | avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { |
261 | ✗ | const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder"; | |
262 | const AVCodec *codec2; | ||
263 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
264 | "The %s '%s' is experimental but experimental codecs are not enabled, " | ||
265 | "add '-strict %d' if you want to use it.\n", | ||
266 | ✗ | codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL); | |
267 | ✗ | codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id); | |
268 | ✗ | if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL)) | |
269 | ✗ | av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n", | |
270 | ✗ | codec_string, codec2->name); | |
271 | ✗ | ret = AVERROR_EXPERIMENTAL; | |
272 | ✗ | goto free_and_end; | |
273 | } | ||
274 | |||
275 |
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31568 | if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && |
276 |
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4097 | (!avctx->time_base.num || !avctx->time_base.den)) { |
277 | 2947 | avctx->time_base.num = 1; | |
278 | 2947 | avctx->time_base.den = avctx->sample_rate; | |
279 | } | ||
280 | |||
281 |
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31568 | if (av_codec_is_encoder(avctx->codec)) |
282 | 18185 | ret = ff_encode_preinit(avctx); | |
283 | else | ||
284 | 13383 | ret = ff_decode_preinit(avctx); | |
285 |
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31568 | if (ret < 0) |
286 | ✗ | goto free_and_end; | |
287 | |||
288 |
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31568 | if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) { |
289 | 18185 | ret = ff_frame_thread_encoder_init(avctx); | |
290 |
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18185 | if (ret < 0) |
291 | ✗ | goto free_and_end; | |
292 | } | ||
293 | |||
294 | 31568 | if (HAVE_THREADS | |
295 |
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31568 | && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) { |
296 | /* Frame-threaded decoders call FFCodec.init for their child contexts. */ | ||
297 | 30052 | lock_avcodec(codec2); | |
298 | 30052 | ret = ff_thread_init(avctx); | |
299 | 30052 | unlock_avcodec(codec2); | |
300 |
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30052 | if (ret < 0) { |
301 | ✗ | goto free_and_end; | |
302 | } | ||
303 | } | ||
304 | if (!HAVE_THREADS && !(codec2->caps_internal & FF_CODEC_CAP_AUTO_THREADS)) | ||
305 | avctx->thread_count = 1; | ||
306 | |||
307 |
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31568 | if (!(avctx->active_thread_type & FF_THREAD_FRAME) || |
308 |
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1524 | avci->frame_thread_encoder) { |
309 |
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31560 | if (codec2->init) { |
310 | 26231 | lock_avcodec(codec2); | |
311 | 26231 | ret = codec2->init(avctx); | |
312 | 26231 | unlock_avcodec(codec2); | |
313 |
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26231 | if (ret < 0) { |
314 | 14 | avci->needs_close = codec2->caps_internal & FF_CODEC_CAP_INIT_CLEANUP; | |
315 | 14 | goto free_and_end; | |
316 | } | ||
317 | } | ||
318 | 31546 | avci->needs_close = 1; | |
319 | } | ||
320 | |||
321 | 31554 | ret=0; | |
322 | |||
323 |
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31554 | if (av_codec_is_decoder(avctx->codec)) { |
324 |
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13369 | if (!avctx->bit_rate) |
325 | 9072 | avctx->bit_rate = get_bit_rate(avctx); | |
326 | |||
327 | #if FF_API_OLD_CHANNEL_LAYOUT | ||
328 | FF_DISABLE_DEPRECATION_WARNINGS | ||
329 | /* update the deprecated fields for old-style callers */ | ||
330 | 13369 | avctx->channels = avctx->ch_layout.nb_channels; | |
331 | 26738 | avctx->channel_layout = avctx->ch_layout.order == AV_CHANNEL_ORDER_NATIVE ? | |
332 |
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13369 | avctx->ch_layout.u.mask : 0; |
333 | |||
334 | /* validate channel layout from the decoder */ | ||
335 |
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13369 | if (avctx->channel_layout) { |
336 | 1790 | int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); | |
337 |
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1790 | if (!avctx->channels) |
338 | ✗ | avctx->channels = channels; | |
339 |
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1790 | else if (channels != avctx->channels) { |
340 | char buf[512]; | ||
341 | ✗ | av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); | |
342 | ✗ | av_log(avctx, AV_LOG_WARNING, | |
343 | "Channel layout '%s' with %d channels does not match specified number of channels %d: " | ||
344 | "ignoring specified channel layout\n", | ||
345 | buf, channels, avctx->channels); | ||
346 | ✗ | avctx->channel_layout = 0; | |
347 | } | ||
348 | } | ||
349 |
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13369 | if (avctx->channels && avctx->channels < 0 || |
350 |
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13369 | avctx->channels > FF_SANE_NB_CHANNELS) { |
351 | ✗ | ret = AVERROR(EINVAL); | |
352 | ✗ | goto free_and_end; | |
353 | } | ||
354 |
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13369 | if (avctx->bits_per_coded_sample < 0) { |
355 | ✗ | ret = AVERROR(EINVAL); | |
356 | ✗ | goto free_and_end; | |
357 | } | ||
358 | FF_ENABLE_DEPRECATION_WARNINGS | ||
359 | #endif | ||
360 | |||
361 | #if FF_API_AVCTX_TIMEBASE | ||
362 |
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13369 | if (avctx->framerate.num > 0 && avctx->framerate.den > 0) |
363 | 4774 | avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1})); | |
364 | #endif | ||
365 | } | ||
366 |
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|
31554 | if (codec->priv_class) |
367 |
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4122 | av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class); |
368 | |||
369 | 31554 | end: | |
370 | |||
371 | 31568 | return ret; | |
372 | 14 | free_and_end: | |
373 | 14 | avcodec_close(avctx); | |
374 | 14 | goto end; | |
375 | } | ||
376 | |||
377 | 89 | void avcodec_flush_buffers(AVCodecContext *avctx) | |
378 | { | ||
379 | 89 | AVCodecInternal *avci = avctx->internal; | |
380 | |||
381 |
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|
89 | if (av_codec_is_encoder(avctx->codec)) { |
382 | ✗ | int caps = avctx->codec->capabilities; | |
383 | |||
384 | ✗ | if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) { | |
385 | // Only encoders that explicitly declare support for it can be | ||
386 | // flushed. Otherwise, this is a no-op. | ||
387 | ✗ | av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder " | |
388 | "that doesn't support it\n"); | ||
389 | ✗ | return; | |
390 | } | ||
391 | ✗ | if (avci->in_frame) | |
392 | ✗ | av_frame_unref(avci->in_frame); | |
393 | } else { | ||
394 | 89 | av_packet_unref(avci->last_pkt_props); | |
395 |
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|
89 | while (av_fifo_read(avci->pkt_props, avci->last_pkt_props, 1) >= 0) |
396 | ✗ | av_packet_unref(avci->last_pkt_props); | |
397 | |||
398 | 89 | av_packet_unref(avci->in_pkt); | |
399 | |||
400 | 89 | avctx->pts_correction_last_pts = | |
401 | 89 | avctx->pts_correction_last_dts = INT64_MIN; | |
402 | |||
403 | 89 | av_bsf_flush(avci->bsf); | |
404 | } | ||
405 | |||
406 | 89 | avci->draining = 0; | |
407 | 89 | avci->draining_done = 0; | |
408 | 89 | avci->nb_draining_errors = 0; | |
409 | 89 | av_frame_unref(avci->buffer_frame); | |
410 | 89 | av_packet_unref(avci->buffer_pkt); | |
411 | |||
412 |
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89 | if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
413 | ✗ | ff_thread_flush(avctx); | |
414 |
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|
89 | else if (ffcodec(avctx->codec)->flush) |
415 | 18 | ffcodec(avctx->codec)->flush(avctx); | |
416 | } | ||
417 | |||
418 | 7600 | void avsubtitle_free(AVSubtitle *sub) | |
419 | { | ||
420 | int i; | ||
421 | |||
422 |
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8451 | for (i = 0; i < sub->num_rects; i++) { |
423 | 851 | AVSubtitleRect *const rect = sub->rects[i]; | |
424 | |||
425 | 851 | av_freep(&rect->data[0]); | |
426 | 851 | av_freep(&rect->data[1]); | |
427 | 851 | av_freep(&rect->data[2]); | |
428 | 851 | av_freep(&rect->data[3]); | |
429 | 851 | av_freep(&rect->text); | |
430 | 851 | av_freep(&rect->ass); | |
431 | |||
432 | 851 | av_freep(&sub->rects[i]); | |
433 | } | ||
434 | |||
435 | 7600 | av_freep(&sub->rects); | |
436 | |||
437 | 7600 | memset(sub, 0, sizeof(*sub)); | |
438 | 7600 | } | |
439 | |||
440 | 65941 | av_cold int avcodec_close(AVCodecContext *avctx) | |
441 | { | ||
442 | int i; | ||
443 | |||
444 |
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65941 | if (!avctx) |
445 | ✗ | return 0; | |
446 | |||
447 |
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65941 | if (avcodec_is_open(avctx)) { |
448 | 31568 | AVCodecInternal *avci = avctx->internal; | |
449 | |||
450 | 31568 | if (CONFIG_FRAME_THREAD_ENCODER && | |
451 |
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31568 | avci->frame_thread_encoder && avctx->thread_count > 1) { |
452 | 1516 | ff_frame_thread_encoder_free(avctx); | |
453 | } | ||
454 |
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31568 | if (HAVE_THREADS && avci->thread_ctx) |
455 | 25 | ff_thread_free(avctx); | |
456 |
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|
31568 | if (avci->needs_close && ffcodec(avctx->codec)->close) |
457 | 6428 | ffcodec(avctx->codec)->close(avctx); | |
458 | 31568 | avci->byte_buffer_size = 0; | |
459 | 31568 | av_freep(&avci->byte_buffer); | |
460 | 31568 | av_frame_free(&avci->buffer_frame); | |
461 | 31568 | av_packet_free(&avci->buffer_pkt); | |
462 |
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31568 | if (avci->pkt_props) { |
463 |
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13383 | while (av_fifo_can_read(avci->pkt_props)) { |
464 | ✗ | av_packet_unref(avci->last_pkt_props); | |
465 | ✗ | av_fifo_read(avci->pkt_props, avci->last_pkt_props, 1); | |
466 | } | ||
467 | 13383 | av_fifo_freep2(&avci->pkt_props); | |
468 | } | ||
469 | 31568 | av_packet_free(&avci->last_pkt_props); | |
470 | |||
471 | 31568 | av_packet_free(&avci->in_pkt); | |
472 | 31568 | av_frame_free(&avci->in_frame); | |
473 | |||
474 | 31568 | av_buffer_unref(&avci->pool); | |
475 | |||
476 |
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31568 | if (avctx->hwaccel && avctx->hwaccel->uninit) |
477 | ✗ | avctx->hwaccel->uninit(avctx); | |
478 | 31568 | av_freep(&avci->hwaccel_priv_data); | |
479 | |||
480 | 31568 | av_bsf_free(&avci->bsf); | |
481 | |||
482 | 31568 | av_channel_layout_uninit(&avci->initial_ch_layout); | |
483 | |||
484 | 31568 | av_freep(&avctx->internal); | |
485 | } | ||
486 | |||
487 |
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66341 | for (i = 0; i < avctx->nb_coded_side_data; i++) |
488 | 400 | av_freep(&avctx->coded_side_data[i].data); | |
489 | 65941 | av_freep(&avctx->coded_side_data); | |
490 | 65941 | avctx->nb_coded_side_data = 0; | |
491 | |||
492 | 65941 | av_buffer_unref(&avctx->hw_frames_ctx); | |
493 | 65941 | av_buffer_unref(&avctx->hw_device_ctx); | |
494 | |||
495 |
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65941 | if (avctx->priv_data && avctx->codec && avctx->codec->priv_class) |
496 | 4340 | av_opt_free(avctx->priv_data); | |
497 | 65941 | av_opt_free(avctx); | |
498 | 65941 | av_freep(&avctx->priv_data); | |
499 |
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65941 | if (av_codec_is_encoder(avctx->codec)) { |
500 | 18185 | av_freep(&avctx->extradata); | |
501 | 18185 | avctx->extradata_size = 0; | |
502 |
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47756 | } else if (av_codec_is_decoder(avctx->codec)) |
503 | 14001 | av_freep(&avctx->subtitle_header); | |
504 | |||
505 | 65941 | avctx->codec = NULL; | |
506 | 65941 | avctx->active_thread_type = 0; | |
507 | |||
508 | 65941 | return 0; | |
509 | } | ||
510 | |||
511 | 15212 | static const char *unknown_if_null(const char *str) | |
512 | { | ||
513 |
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15212 | return str ? str : "unknown"; |
514 | } | ||
515 | |||
516 | 13416 | void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) | |
517 | { | ||
518 | const char *codec_type; | ||
519 | const char *codec_name; | ||
520 | 13416 | const char *profile = NULL; | |
521 | AVBPrint bprint; | ||
522 | int64_t bitrate; | ||
523 | 13416 | int new_line = 0; | |
524 | AVRational display_aspect_ratio; | ||
525 |
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13416 | const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", "; |
526 | const char *str; | ||
527 | |||
528 |
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13416 | if (!buf || buf_size <= 0) |
529 | 3 | return; | |
530 | 13416 | av_bprint_init_for_buffer(&bprint, buf, buf_size); | |
531 | 13416 | codec_type = av_get_media_type_string(enc->codec_type); | |
532 | 13416 | codec_name = avcodec_get_name(enc->codec_id); | |
533 | 13416 | profile = avcodec_profile_name(enc->codec_id, enc->profile); | |
534 | |||
535 |
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13416 | av_bprintf(&bprint, "%s: %s", codec_type ? codec_type : "unknown", |
536 | codec_name); | ||
537 | 13416 | buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */ | |
538 | |||
539 |
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13416 | if (enc->codec && strcmp(enc->codec->name, codec_name)) |
540 | 2 | av_bprintf(&bprint, " (%s)", enc->codec->name); | |
541 | |||
542 |
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13416 | if (profile) |
543 | 1645 | av_bprintf(&bprint, " (%s)", profile); | |
544 |
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13416 | if ( enc->codec_type == AVMEDIA_TYPE_VIDEO |
545 |
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|
10319 | && av_log_get_level() >= AV_LOG_VERBOSE |
546 | ✗ | && enc->refs) | |
547 | ✗ | av_bprintf(&bprint, ", %d reference frame%s", | |
548 | ✗ | enc->refs, enc->refs > 1 ? "s" : ""); | |
549 | |||
550 |
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13416 | if (enc->codec_tag) |
551 | 7668 | av_bprintf(&bprint, " (%s / 0x%04X)", | |
552 | 7668 | av_fourcc2str(enc->codec_tag), enc->codec_tag); | |
553 | |||
554 |
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|
13416 | switch (enc->codec_type) { |
555 | 10319 | case AVMEDIA_TYPE_VIDEO: | |
556 | { | ||
557 | unsigned len; | ||
558 | |||
559 | 10319 | av_bprintf(&bprint, "%s%s", separator, | |
560 |
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10319 | enc->pix_fmt == AV_PIX_FMT_NONE ? "none" : |
561 | 10232 | unknown_if_null(av_get_pix_fmt_name(enc->pix_fmt))); | |
562 | |||
563 | 10319 | av_bprint_chars(&bprint, '(', 1); | |
564 | 10319 | len = bprint.len; | |
565 | |||
566 | /* The following check ensures that '(' has been written | ||
567 | * and therefore allows us to erase it if it turns out | ||
568 | * to be unnecessary. */ | ||
569 |
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10319 | if (!av_bprint_is_complete(&bprint)) |
570 | ✗ | return; | |
571 | |||
572 |
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10319 | if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE && |
573 |
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3465 | enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth) |
574 | 15 | av_bprintf(&bprint, "%d bpc, ", enc->bits_per_raw_sample); | |
575 |
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15077 | if (enc->color_range != AVCOL_RANGE_UNSPECIFIED && |
576 | 4758 | (str = av_color_range_name(enc->color_range))) | |
577 | 4758 | av_bprintf(&bprint, "%s, ", str); | |
578 | |||
579 |
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10319 | if (enc->colorspace != AVCOL_SPC_UNSPECIFIED || |
580 |
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8677 | enc->color_primaries != AVCOL_PRI_UNSPECIFIED || |
581 |
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8677 | enc->color_trc != AVCOL_TRC_UNSPECIFIED) { |
582 | 1660 | const char *col = unknown_if_null(av_color_space_name(enc->colorspace)); | |
583 | 1660 | const char *pri = unknown_if_null(av_color_primaries_name(enc->color_primaries)); | |
584 | 1660 | const char *trc = unknown_if_null(av_color_transfer_name(enc->color_trc)); | |
585 |
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1660 | if (strcmp(col, pri) || strcmp(col, trc)) { |
586 | 1525 | new_line = 1; | |
587 | 1525 | av_bprintf(&bprint, "%s/%s/%s, ", col, pri, trc); | |
588 | } else | ||
589 | 135 | av_bprintf(&bprint, "%s, ", col); | |
590 | } | ||
591 | |||
592 |
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|
10319 | if (enc->field_order != AV_FIELD_UNKNOWN) { |
593 | 5469 | const char *field_order = "progressive"; | |
594 |
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5469 | if (enc->field_order == AV_FIELD_TT) |
595 | 118 | field_order = "top first"; | |
596 |
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5351 | else if (enc->field_order == AV_FIELD_BB) |
597 | 40 | field_order = "bottom first"; | |
598 |
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5311 | else if (enc->field_order == AV_FIELD_TB) |
599 | 328 | field_order = "top coded first (swapped)"; | |
600 |
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4983 | else if (enc->field_order == AV_FIELD_BT) |
601 | 72 | field_order = "bottom coded first (swapped)"; | |
602 | |||
603 | 5469 | av_bprintf(&bprint, "%s, ", field_order); | |
604 | } | ||
605 | |||
606 |
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10319 | if (av_log_get_level() >= AV_LOG_VERBOSE && |
607 | ✗ | enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED && | |
608 | ✗ | (str = av_chroma_location_name(enc->chroma_sample_location))) | |
609 | ✗ | av_bprintf(&bprint, "%s, ", str); | |
610 | |||
611 |
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10319 | if (len == bprint.len) { |
612 | 3944 | bprint.str[len - 1] = '\0'; | |
613 | 3944 | bprint.len--; | |
614 | } else { | ||
615 |
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6375 | if (bprint.len - 2 < bprint.size) { |
616 | /* Erase the last ", " */ | ||
617 | 6375 | bprint.len -= 2; | |
618 | 6375 | bprint.str[bprint.len] = '\0'; | |
619 | } | ||
620 | 6375 | av_bprint_chars(&bprint, ')', 1); | |
621 | } | ||
622 | } | ||
623 | |||
624 |
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10319 | if (enc->width) { |
625 |
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10303 | av_bprintf(&bprint, "%s%dx%d", new_line ? separator : ", ", |
626 | enc->width, enc->height); | ||
627 | |||
628 |
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10303 | if (av_log_get_level() >= AV_LOG_VERBOSE && |
629 | ✗ | (enc->width != enc->coded_width || | |
630 | ✗ | enc->height != enc->coded_height)) | |
631 | ✗ | av_bprintf(&bprint, " (%dx%d)", | |
632 | enc->coded_width, enc->coded_height); | ||
633 | |||
634 |
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10303 | if (enc->sample_aspect_ratio.num) { |
635 | 1346 | av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, | |
636 | 1346 | enc->width * (int64_t)enc->sample_aspect_ratio.num, | |
637 | 1346 | enc->height * (int64_t)enc->sample_aspect_ratio.den, | |
638 | 1024 * 1024); | ||
639 | 1346 | av_bprintf(&bprint, " [SAR %d:%d DAR %d:%d]", | |
640 | enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den, | ||
641 | display_aspect_ratio.num, display_aspect_ratio.den); | ||
642 | } | ||
643 |
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10303 | if (av_log_get_level() >= AV_LOG_DEBUG) { |
644 | ✗ | int g = av_gcd(enc->time_base.num, enc->time_base.den); | |
645 | ✗ | av_bprintf(&bprint, ", %d/%d", | |
646 | ✗ | enc->time_base.num / g, enc->time_base.den / g); | |
647 | } | ||
648 | } | ||
649 |
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10319 | if (encode) { |
650 | 5089 | av_bprintf(&bprint, ", q=%d-%d", enc->qmin, enc->qmax); | |
651 | } else { | ||
652 |
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5230 | if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS) |
653 | 2 | av_bprintf(&bprint, ", Closed Captions"); | |
654 |
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5230 | if (enc->properties & FF_CODEC_PROPERTY_FILM_GRAIN) |
655 | 4 | av_bprintf(&bprint, ", Film Grain"); | |
656 |
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5230 | if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS) |
657 | 23 | av_bprintf(&bprint, ", lossless"); | |
658 | } | ||
659 | 10319 | break; | |
660 | 2874 | case AVMEDIA_TYPE_AUDIO: | |
661 | 2874 | av_bprintf(&bprint, "%s", separator); | |
662 | |||
663 |
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2874 | if (enc->sample_rate) { |
664 | 2862 | av_bprintf(&bprint, "%d Hz, ", enc->sample_rate); | |
665 | } | ||
666 | { | ||
667 | char buf[512]; | ||
668 | 2874 | int ret = av_channel_layout_describe(&enc->ch_layout, buf, sizeof(buf)); | |
669 |
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2874 | if (ret >= 0) |
670 | 2874 | av_bprintf(&bprint, "%s", buf); | |
671 | } | ||
672 |
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5740 | if (enc->sample_fmt != AV_SAMPLE_FMT_NONE && |
673 | 2866 | (str = av_get_sample_fmt_name(enc->sample_fmt))) { | |
674 | 2866 | av_bprintf(&bprint, ", %s", str); | |
675 | } | ||
676 |
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2874 | if ( enc->bits_per_raw_sample > 0 |
677 |
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1364 | && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8) |
678 | 93 | av_bprintf(&bprint, " (%d bit)", enc->bits_per_raw_sample); | |
679 |
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2874 | if (av_log_get_level() >= AV_LOG_VERBOSE) { |
680 |
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4 | if (enc->initial_padding) |
681 | 2 | av_bprintf(&bprint, ", delay %d", enc->initial_padding); | |
682 |
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4 | if (enc->trailing_padding) |
683 | ✗ | av_bprintf(&bprint, ", padding %d", enc->trailing_padding); | |
684 | } | ||
685 | 2874 | break; | |
686 | 83 | case AVMEDIA_TYPE_DATA: | |
687 |
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83 | if (av_log_get_level() >= AV_LOG_DEBUG) { |
688 | ✗ | int g = av_gcd(enc->time_base.num, enc->time_base.den); | |
689 | ✗ | if (g) | |
690 | ✗ | av_bprintf(&bprint, ", %d/%d", | |
691 | ✗ | enc->time_base.num / g, enc->time_base.den / g); | |
692 | } | ||
693 | 83 | break; | |
694 | 137 | case AVMEDIA_TYPE_SUBTITLE: | |
695 |
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137 | if (enc->width) |
696 | 25 | av_bprintf(&bprint, ", %dx%d", enc->width, enc->height); | |
697 | 137 | break; | |
698 | 3 | default: | |
699 | 3 | return; | |
700 | } | ||
701 |
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13413 | if (encode) { |
702 |
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6478 | if (enc->flags & AV_CODEC_FLAG_PASS1) |
703 | ✗ | av_bprintf(&bprint, ", pass 1"); | |
704 |
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6478 | if (enc->flags & AV_CODEC_FLAG_PASS2) |
705 | ✗ | av_bprintf(&bprint, ", pass 2"); | |
706 | } | ||
707 | 13413 | bitrate = get_bit_rate(enc); | |
708 |
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13413 | if (bitrate != 0) { |
709 | 8662 | av_bprintf(&bprint, ", %"PRId64" kb/s", bitrate / 1000); | |
710 |
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4751 | } else if (enc->rc_max_rate > 0) { |
711 | ✗ | av_bprintf(&bprint, ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000); | |
712 | } | ||
713 | } | ||
714 | |||
715 | 2663279 | int avcodec_is_open(AVCodecContext *s) | |
716 | { | ||
717 | 2663279 | return !!s->internal; | |
718 | } | ||
719 |