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
avcodec_default_execute(AVCodecContext * c,int (* func)(AVCodecContext * c2,void * arg2),void * arg,int * ret,int count,int size)45 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 for (i = 0; i < count; i++) {
50 int r = func(c, (char *)arg + i * size);
51 if (ret)
52 ret[i] = r;
53 }
54 emms_c();
55 return 0;
56 }
57
avcodec_default_execute2(AVCodecContext * c,int (* func)(AVCodecContext * c2,void * arg2,int jobnr,int threadnr),void * arg,int * ret,int count)58 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 for (i = 0; i < count; i++) {
63 int r = func(c, arg, i, 0);
64 if (ret)
65 ret[i] = r;
66 }
67 emms_c();
68 return 0;
69 }
70
71 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
72
lock_avcodec(const FFCodec * codec)73 static void lock_avcodec(const FFCodec *codec)
74 {
75 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
76 ff_mutex_lock(&codec_mutex);
77 }
78
unlock_avcodec(const FFCodec * codec)79 static void unlock_avcodec(const FFCodec *codec)
80 {
81 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
82 ff_mutex_unlock(&codec_mutex);
83 }
84
get_bit_rate(AVCodecContext * ctx)85 static int64_t get_bit_rate(AVCodecContext *ctx)
86 {
87 int64_t bit_rate;
88 int bits_per_sample;
89
90 switch (ctx->codec_type) {
91 case AVMEDIA_TYPE_VIDEO:
92 case AVMEDIA_TYPE_DATA:
93 case AVMEDIA_TYPE_SUBTITLE:
94 case AVMEDIA_TYPE_ATTACHMENT:
95 bit_rate = ctx->bit_rate;
96 break;
97 case AVMEDIA_TYPE_AUDIO:
98 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
99 if (bits_per_sample) {
100 bit_rate = ctx->sample_rate * (int64_t)ctx->ch_layout.nb_channels;
101 if (bit_rate > INT64_MAX / bits_per_sample) {
102 bit_rate = 0;
103 } else
104 bit_rate *= bits_per_sample;
105 } else
106 bit_rate = ctx->bit_rate;
107 break;
108 default:
109 bit_rate = 0;
110 break;
111 }
112 return bit_rate;
113 }
114
avcodec_open2(AVCodecContext * avctx,const AVCodec * codec,AVDictionary ** options)115 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
116 {
117 int ret = 0;
118 AVCodecInternal *avci;
119 const FFCodec *codec2;
120
121 if (avcodec_is_open(avctx))
122 return 0;
123
124 if (!codec && !avctx->codec) {
125 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
126 return AVERROR(EINVAL);
127 }
128 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 if (!codec)
134 codec = avctx->codec;
135 codec2 = ffcodec(codec);
136
137 #ifdef OHOS_AUXILIARY_TRACK
138 if ((avctx->codec_type != AVMEDIA_TYPE_AUXILIARY && avctx->codec_type != AVMEDIA_TYPE_UNKNOWN &&
139 avctx->codec_type != codec->type) ||
140 (avctx->codec_id != AV_CODEC_ID_NONE && avctx->codec_id != codec->id)) {
141 #else
142 if ((avctx->codec_type != AVMEDIA_TYPE_UNKNOWN && avctx->codec_type != codec->type) ||
143 (avctx->codec_id != AV_CODEC_ID_NONE && avctx->codec_id != codec->id)) {
144 #endif
145 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
146 return AVERROR(EINVAL);
147 }
148
149 avctx->codec_type = codec->type;
150 avctx->codec_id = codec->id;
151 avctx->codec = codec;
152
153 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
154 return AVERROR(EINVAL);
155
156 avci = av_mallocz(sizeof(*avci));
157 if (!avci) {
158 ret = AVERROR(ENOMEM);
159 goto end;
160 }
161 avctx->internal = avci;
162
163 avci->buffer_frame = av_frame_alloc();
164 avci->buffer_pkt = av_packet_alloc();
165 if (!avci->buffer_frame || !avci->buffer_pkt) {
166 ret = AVERROR(ENOMEM);
167 goto free_and_end;
168 }
169
170 avci->skip_samples_multiplier = 1;
171
172 if (codec2->priv_data_size > 0) {
173 if (!avctx->priv_data) {
174 avctx->priv_data = av_mallocz(codec2->priv_data_size);
175 if (!avctx->priv_data) {
176 ret = AVERROR(ENOMEM);
177 goto free_and_end;
178 }
179 if (codec->priv_class) {
180 *(const AVClass **)avctx->priv_data = codec->priv_class;
181 av_opt_set_defaults(avctx->priv_data);
182 }
183 }
184 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, options)) < 0)
185 goto free_and_end;
186 } else {
187 avctx->priv_data = NULL;
188 }
189 if ((ret = av_opt_set_dict(avctx, options)) < 0)
190 goto free_and_end;
191
192 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
193 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
194 ret = AVERROR(EINVAL);
195 goto free_and_end;
196 }
197
198 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
199 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
200 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
201 if (avctx->coded_width && avctx->coded_height)
202 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
203 else if (avctx->width && avctx->height)
204 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
205 if (ret < 0)
206 goto free_and_end;
207 }
208
209 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
210 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
211 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
212 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
213 ff_set_dimensions(avctx, 0, 0);
214 }
215
216 if (avctx->width > 0 && avctx->height > 0) {
217 if (av_image_check_sar(avctx->width, avctx->height,
218 avctx->sample_aspect_ratio) < 0) {
219 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
220 avctx->sample_aspect_ratio.num,
221 avctx->sample_aspect_ratio.den);
222 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
223 }
224 }
225
226 if (avctx->sample_rate < 0) {
227 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
228 ret = AVERROR(EINVAL);
229 goto free_and_end;
230 }
231 if (avctx->block_align < 0) {
232 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
233 ret = AVERROR(EINVAL);
234 goto free_and_end;
235 }
236
237 #if FF_API_OLD_CHANNEL_LAYOUT
238 FF_DISABLE_DEPRECATION_WARNINGS
239 /* compat wrapper for old-style callers */
240 if (avctx->channel_layout && !avctx->channels)
241 avctx->channels = av_popcount64(avctx->channel_layout);
242
243 if ((avctx->channels > 0 && avctx->ch_layout.nb_channels != avctx->channels) ||
244 (avctx->channel_layout && (avctx->ch_layout.order != AV_CHANNEL_ORDER_NATIVE ||
245 avctx->ch_layout.u.mask != avctx->channel_layout))) {
246 if (avctx->channel_layout) {
247 av_channel_layout_from_mask(&avctx->ch_layout, avctx->channel_layout);
248 } else {
249 avctx->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
250 avctx->ch_layout.nb_channels = avctx->channels;
251 }
252 }
253 FF_ENABLE_DEPRECATION_WARNINGS
254 #endif
255
256 if (avctx->ch_layout.nb_channels > FF_SANE_NB_CHANNELS) {
257 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d\n", avctx->ch_layout.nb_channels);
258 ret = AVERROR(EINVAL);
259 goto free_and_end;
260 }
261
262 avctx->frame_number = 0;
263 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
264
265 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
266 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
267 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
268 const AVCodec *codec2;
269 av_log(avctx, AV_LOG_ERROR,
270 "The %s '%s' is experimental but experimental codecs are not enabled, "
271 "add '-strict %d' if you want to use it.\n",
272 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
273 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
274 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
275 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
276 codec_string, codec2->name);
277 ret = AVERROR_EXPERIMENTAL;
278 goto free_and_end;
279 }
280
281 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
282 (!avctx->time_base.num || !avctx->time_base.den)) {
283 avctx->time_base.num = 1;
284 avctx->time_base.den = avctx->sample_rate;
285 }
286
287 if (av_codec_is_encoder(avctx->codec))
288 ret = ff_encode_preinit(avctx);
289 else
290 ret = ff_decode_preinit(avctx);
291 if (ret < 0)
292 goto free_and_end;
293
294 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
295 ret = ff_frame_thread_encoder_init(avctx);
296 if (ret < 0)
297 goto free_and_end;
298 }
299
300 if (HAVE_THREADS
301 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
302 /* Frame-threaded decoders call FFCodec.init for their child contexts. */
303 lock_avcodec(codec2);
304 ret = ff_thread_init(avctx);
305 unlock_avcodec(codec2);
306 if (ret < 0) {
307 goto free_and_end;
308 }
309 }
310 if (!HAVE_THREADS && !(codec2->caps_internal & FF_CODEC_CAP_AUTO_THREADS))
311 avctx->thread_count = 1;
312
313 if (!(avctx->active_thread_type & FF_THREAD_FRAME) ||
314 avci->frame_thread_encoder) {
315 if (codec2->init) {
316 lock_avcodec(codec2);
317 ret = codec2->init(avctx);
318 unlock_avcodec(codec2);
319 if (ret < 0) {
320 avci->needs_close = codec2->caps_internal & FF_CODEC_CAP_INIT_CLEANUP;
321 goto free_and_end;
322 }
323 }
324 avci->needs_close = 1;
325 }
326
327 ret=0;
328
329 if (av_codec_is_decoder(avctx->codec)) {
330 if (!avctx->bit_rate)
331 avctx->bit_rate = get_bit_rate(avctx);
332
333 #if FF_API_OLD_CHANNEL_LAYOUT
334 FF_DISABLE_DEPRECATION_WARNINGS
335 /* update the deprecated fields for old-style callers */
336 avctx->channels = avctx->ch_layout.nb_channels;
337 avctx->channel_layout = avctx->ch_layout.order == AV_CHANNEL_ORDER_NATIVE ?
338 avctx->ch_layout.u.mask : 0;
339
340 /* validate channel layout from the decoder */
341 if (avctx->channel_layout) {
342 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
343 if (!avctx->channels)
344 avctx->channels = channels;
345 else if (channels != avctx->channels) {
346 char buf[512];
347 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
348 av_log(avctx, AV_LOG_WARNING,
349 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
350 "ignoring specified channel layout\n",
351 buf, channels, avctx->channels);
352 avctx->channel_layout = 0;
353 }
354 }
355 if (avctx->channels && avctx->channels < 0 ||
356 avctx->channels > FF_SANE_NB_CHANNELS) {
357 ret = AVERROR(EINVAL);
358 goto free_and_end;
359 }
360 if (avctx->bits_per_coded_sample < 0) {
361 ret = AVERROR(EINVAL);
362 goto free_and_end;
363 }
364 FF_ENABLE_DEPRECATION_WARNINGS
365 #endif
366
367 #if FF_API_AVCTX_TIMEBASE
368 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
369 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
370 #endif
371 }
372 if (codec->priv_class)
373 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
374
375 end:
376
377 return ret;
378 free_and_end:
379 avcodec_close(avctx);
380 goto end;
381 }
382
383 void avcodec_flush_buffers(AVCodecContext *avctx)
384 {
385 AVCodecInternal *avci = avctx->internal;
386
387 if (av_codec_is_encoder(avctx->codec)) {
388 int caps = avctx->codec->capabilities;
389
390 if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
391 // Only encoders that explicitly declare support for it can be
392 // flushed. Otherwise, this is a no-op.
393 av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
394 "that doesn't support it\n");
395 return;
396 }
397 if (avci->in_frame)
398 av_frame_unref(avci->in_frame);
399 } else {
400 av_packet_unref(avci->last_pkt_props);
401 while (av_fifo_read(avci->pkt_props, avci->last_pkt_props, 1) >= 0)
402 av_packet_unref(avci->last_pkt_props);
403
404 av_packet_unref(avci->in_pkt);
405
406 avctx->pts_correction_last_pts =
407 avctx->pts_correction_last_dts = INT64_MIN;
408
409 av_bsf_flush(avci->bsf);
410 }
411
412 avci->draining = 0;
413 avci->draining_done = 0;
414 avci->nb_draining_errors = 0;
415 av_frame_unref(avci->buffer_frame);
416 av_packet_unref(avci->buffer_pkt);
417
418 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
419 ff_thread_flush(avctx);
420 else if (ffcodec(avctx->codec)->flush)
421 ffcodec(avctx->codec)->flush(avctx);
422 }
423
424 void avsubtitle_free(AVSubtitle *sub)
425 {
426 int i;
427
428 for (i = 0; i < sub->num_rects; i++) {
429 AVSubtitleRect *const rect = sub->rects[i];
430
431 av_freep(&rect->data[0]);
432 av_freep(&rect->data[1]);
433 av_freep(&rect->data[2]);
434 av_freep(&rect->data[3]);
435 av_freep(&rect->text);
436 av_freep(&rect->ass);
437
438 av_freep(&sub->rects[i]);
439 }
440
441 av_freep(&sub->rects);
442
443 memset(sub, 0, sizeof(*sub));
444 }
445
446 av_cold int avcodec_close(AVCodecContext *avctx)
447 {
448 int i;
449
450 if (!avctx)
451 return 0;
452
453 if (avcodec_is_open(avctx)) {
454 AVCodecInternal *avci = avctx->internal;
455
456 if (CONFIG_FRAME_THREAD_ENCODER &&
457 avci->frame_thread_encoder && avctx->thread_count > 1) {
458 ff_frame_thread_encoder_free(avctx);
459 }
460 if (HAVE_THREADS && avci->thread_ctx)
461 ff_thread_free(avctx);
462 if (avci->needs_close && ffcodec(avctx->codec)->close)
463 ffcodec(avctx->codec)->close(avctx);
464 avci->byte_buffer_size = 0;
465 av_freep(&avci->byte_buffer);
466 av_frame_free(&avci->buffer_frame);
467 av_packet_free(&avci->buffer_pkt);
468 if (avci->pkt_props) {
469 while (av_fifo_can_read(avci->pkt_props)) {
470 av_packet_unref(avci->last_pkt_props);
471 av_fifo_read(avci->pkt_props, avci->last_pkt_props, 1);
472 }
473 av_fifo_freep2(&avci->pkt_props);
474 }
475 av_packet_free(&avci->last_pkt_props);
476
477 av_packet_free(&avci->in_pkt);
478 av_frame_free(&avci->in_frame);
479
480 av_buffer_unref(&avci->pool);
481
482 if (avctx->hwaccel && avctx->hwaccel->uninit)
483 avctx->hwaccel->uninit(avctx);
484 av_freep(&avci->hwaccel_priv_data);
485
486 av_bsf_free(&avci->bsf);
487
488 av_channel_layout_uninit(&avci->initial_ch_layout);
489
490 av_freep(&avctx->internal);
491 }
492
493 for (i = 0; i < avctx->nb_coded_side_data; i++)
494 av_freep(&avctx->coded_side_data[i].data);
495 av_freep(&avctx->coded_side_data);
496 avctx->nb_coded_side_data = 0;
497
498 av_buffer_unref(&avctx->hw_frames_ctx);
499 av_buffer_unref(&avctx->hw_device_ctx);
500
501 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
502 av_opt_free(avctx->priv_data);
503 av_opt_free(avctx);
504 av_freep(&avctx->priv_data);
505 if (av_codec_is_encoder(avctx->codec)) {
506 av_freep(&avctx->extradata);
507 avctx->extradata_size = 0;
508 } else if (av_codec_is_decoder(avctx->codec))
509 av_freep(&avctx->subtitle_header);
510
511 avctx->codec = NULL;
512 avctx->active_thread_type = 0;
513
514 return 0;
515 }
516
517 static const char *unknown_if_null(const char *str)
518 {
519 return str ? str : "unknown";
520 }
521
522 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
523 {
524 const char *codec_type;
525 const char *codec_name;
526 const char *profile = NULL;
527 AVBPrint bprint;
528 int64_t bitrate;
529 int new_line = 0;
530 AVRational display_aspect_ratio;
531 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
532 const char *str;
533
534 if (!buf || buf_size <= 0)
535 return;
536 av_bprint_init_for_buffer(&bprint, buf, buf_size);
537 codec_type = av_get_media_type_string(enc->codec_type);
538 codec_name = avcodec_get_name(enc->codec_id);
539 profile = avcodec_profile_name(enc->codec_id, enc->profile);
540
541 av_bprintf(&bprint, "%s: %s", codec_type ? codec_type : "unknown",
542 codec_name);
543 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
544
545 if (enc->codec && strcmp(enc->codec->name, codec_name))
546 av_bprintf(&bprint, " (%s)", enc->codec->name);
547
548 if (profile)
549 av_bprintf(&bprint, " (%s)", profile);
550 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
551 && av_log_get_level() >= AV_LOG_VERBOSE
552 && enc->refs)
553 av_bprintf(&bprint, ", %d reference frame%s",
554 enc->refs, enc->refs > 1 ? "s" : "");
555
556 if (enc->codec_tag)
557 av_bprintf(&bprint, " (%s / 0x%04X)",
558 av_fourcc2str(enc->codec_tag), enc->codec_tag);
559
560 switch (enc->codec_type) {
561 case AVMEDIA_TYPE_VIDEO:
562 {
563 unsigned len;
564
565 av_bprintf(&bprint, "%s%s", separator,
566 enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
567 unknown_if_null(av_get_pix_fmt_name(enc->pix_fmt)));
568
569 av_bprint_chars(&bprint, '(', 1);
570 len = bprint.len;
571
572 /* The following check ensures that '(' has been written
573 * and therefore allows us to erase it if it turns out
574 * to be unnecessary. */
575 if (!av_bprint_is_complete(&bprint))
576 return;
577
578 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
579 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
580 av_bprintf(&bprint, "%d bpc, ", enc->bits_per_raw_sample);
581 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED &&
582 (str = av_color_range_name(enc->color_range)))
583 av_bprintf(&bprint, "%s, ", str);
584
585 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
586 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
587 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
588 const char *col = unknown_if_null(av_color_space_name(enc->colorspace));
589 const char *pri = unknown_if_null(av_color_primaries_name(enc->color_primaries));
590 const char *trc = unknown_if_null(av_color_transfer_name(enc->color_trc));
591 if (strcmp(col, pri) || strcmp(col, trc)) {
592 new_line = 1;
593 av_bprintf(&bprint, "%s/%s/%s, ", col, pri, trc);
594 } else
595 av_bprintf(&bprint, "%s, ", col);
596 }
597
598 if (enc->field_order != AV_FIELD_UNKNOWN) {
599 const char *field_order = "progressive";
600 if (enc->field_order == AV_FIELD_TT)
601 field_order = "top first";
602 else if (enc->field_order == AV_FIELD_BB)
603 field_order = "bottom first";
604 else if (enc->field_order == AV_FIELD_TB)
605 field_order = "top coded first (swapped)";
606 else if (enc->field_order == AV_FIELD_BT)
607 field_order = "bottom coded first (swapped)";
608
609 av_bprintf(&bprint, "%s, ", field_order);
610 }
611
612 if (av_log_get_level() >= AV_LOG_VERBOSE &&
613 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED &&
614 (str = av_chroma_location_name(enc->chroma_sample_location)))
615 av_bprintf(&bprint, "%s, ", str);
616
617 if (len == bprint.len) {
618 bprint.str[len - 1] = '\0';
619 bprint.len--;
620 } else {
621 if (bprint.len - 2 < bprint.size) {
622 /* Erase the last ", " */
623 bprint.len -= 2;
624 bprint.str[bprint.len] = '\0';
625 }
626 av_bprint_chars(&bprint, ')', 1);
627 }
628 }
629
630 if (enc->width) {
631 av_bprintf(&bprint, "%s%dx%d", new_line ? separator : ", ",
632 enc->width, enc->height);
633
634 if (av_log_get_level() >= AV_LOG_VERBOSE &&
635 (enc->width != enc->coded_width ||
636 enc->height != enc->coded_height))
637 av_bprintf(&bprint, " (%dx%d)",
638 enc->coded_width, enc->coded_height);
639
640 if (enc->sample_aspect_ratio.num) {
641 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
642 enc->width * (int64_t)enc->sample_aspect_ratio.num,
643 enc->height * (int64_t)enc->sample_aspect_ratio.den,
644 1024 * 1024);
645 av_bprintf(&bprint, " [SAR %d:%d DAR %d:%d]",
646 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
647 display_aspect_ratio.num, display_aspect_ratio.den);
648 }
649 if (av_log_get_level() >= AV_LOG_DEBUG) {
650 int g = av_gcd(enc->time_base.num, enc->time_base.den);
651 av_bprintf(&bprint, ", %d/%d",
652 enc->time_base.num / g, enc->time_base.den / g);
653 }
654 }
655 if (encode) {
656 av_bprintf(&bprint, ", q=%d-%d", enc->qmin, enc->qmax);
657 } else {
658 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
659 av_bprintf(&bprint, ", Closed Captions");
660 if (enc->properties & FF_CODEC_PROPERTY_FILM_GRAIN)
661 av_bprintf(&bprint, ", Film Grain");
662 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
663 av_bprintf(&bprint, ", lossless");
664 }
665 break;
666 case AVMEDIA_TYPE_AUDIO:
667 av_bprintf(&bprint, "%s", separator);
668
669 if (enc->sample_rate) {
670 av_bprintf(&bprint, "%d Hz, ", enc->sample_rate);
671 }
672 {
673 char buf[512];
674 int ret = av_channel_layout_describe(&enc->ch_layout, buf, sizeof(buf));
675 if (ret >= 0)
676 av_bprintf(&bprint, "%s", buf);
677 }
678 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE &&
679 (str = av_get_sample_fmt_name(enc->sample_fmt))) {
680 av_bprintf(&bprint, ", %s", str);
681 }
682 if ( enc->bits_per_raw_sample > 0
683 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
684 av_bprintf(&bprint, " (%d bit)", enc->bits_per_raw_sample);
685 if (av_log_get_level() >= AV_LOG_VERBOSE) {
686 if (enc->initial_padding)
687 av_bprintf(&bprint, ", delay %d", enc->initial_padding);
688 if (enc->trailing_padding)
689 av_bprintf(&bprint, ", padding %d", enc->trailing_padding);
690 }
691 break;
692 case AVMEDIA_TYPE_DATA:
693 if (av_log_get_level() >= AV_LOG_DEBUG) {
694 int g = av_gcd(enc->time_base.num, enc->time_base.den);
695 if (g)
696 av_bprintf(&bprint, ", %d/%d",
697 enc->time_base.num / g, enc->time_base.den / g);
698 }
699 break;
700 case AVMEDIA_TYPE_SUBTITLE:
701 if (enc->width)
702 av_bprintf(&bprint, ", %dx%d", enc->width, enc->height);
703 break;
704 default:
705 return;
706 }
707 if (encode) {
708 if (enc->flags & AV_CODEC_FLAG_PASS1)
709 av_bprintf(&bprint, ", pass 1");
710 if (enc->flags & AV_CODEC_FLAG_PASS2)
711 av_bprintf(&bprint, ", pass 2");
712 }
713 bitrate = get_bit_rate(enc);
714 if (bitrate != 0) {
715 av_bprintf(&bprint, ", %"PRId64" kb/s", bitrate / 1000);
716 } else if (enc->rc_max_rate > 0) {
717 av_bprintf(&bprint, ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
718 }
719 }
720
721 int avcodec_is_open(AVCodecContext *s)
722 {
723 return !!s->internal;
724 }
725