2 * AVCodecContext functions for libavcodec
4 * This file is part of FFmpeg.
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.
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.
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
23 * AVCodecContext functions for libavcodec
27 #include "libavutil/avassert.h"
28 #include "libavutil/avstring.h"
29 #include "libavutil/bprint.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/mem.h"
32 #include "libavutil/opt.h"
33 #include "libavutil/thread.h"
37 #include "frame_thread_encoder.h"
41 #include "libavutil/ffversion.h"
42 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
44 unsigned avcodec_version(void)
46 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
47 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
48 av_assert0(AV_CODEC_ID_SRT==94216);
49 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
51 return LIBAVCODEC_VERSION_INT;
54 const char *avcodec_configuration(void)
56 return FFMPEG_CONFIGURATION;
59 const char *avcodec_license(void)
61 #define LICENSE_PREFIX "libavcodec license: "
62 return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
65 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
69 for (i = 0; i < count; i++) {
70 int r = func(c, (char *)arg + i * size);
78 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
82 for (i = 0; i < count; i++) {
83 int r = func(c, arg, i, 0);
91 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
93 static void lock_avcodec(const AVCodec *codec)
95 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
96 ff_mutex_lock(&codec_mutex);
99 static void unlock_avcodec(const AVCodec *codec)
101 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
102 ff_mutex_unlock(&codec_mutex);
105 static int64_t get_bit_rate(AVCodecContext *ctx)
110 switch (ctx->codec_type) {
111 case AVMEDIA_TYPE_VIDEO:
112 case AVMEDIA_TYPE_DATA:
113 case AVMEDIA_TYPE_SUBTITLE:
114 case AVMEDIA_TYPE_ATTACHMENT:
115 bit_rate = ctx->bit_rate;
117 case AVMEDIA_TYPE_AUDIO:
118 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
119 if (bits_per_sample) {
120 bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
121 if (bit_rate > INT64_MAX / bits_per_sample) {
124 bit_rate *= bits_per_sample;
126 bit_rate = ctx->bit_rate;
135 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
138 int codec_init_ok = 0;
139 AVDictionary *tmp = NULL;
140 AVCodecInternal *avci;
142 if (avcodec_is_open(avctx))
145 if (!codec && !avctx->codec) {
146 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
147 return AVERROR(EINVAL);
149 if (codec && avctx->codec && codec != avctx->codec) {
150 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
151 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
152 return AVERROR(EINVAL);
155 codec = avctx->codec;
157 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
158 avctx->codec_id == AV_CODEC_ID_NONE) {
159 avctx->codec_type = codec->type;
160 avctx->codec_id = codec->id;
162 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type &&
163 avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
164 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
165 return AVERROR(EINVAL);
167 avctx->codec = codec;
169 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
170 return AVERROR(EINVAL);
173 av_dict_copy(&tmp, *options, 0);
177 avci = av_mallocz(sizeof(*avci));
179 ret = AVERROR(ENOMEM);
182 avctx->internal = avci;
184 #if FF_API_OLD_ENCDEC
185 avci->to_free = av_frame_alloc();
186 avci->compat_decode_frame = av_frame_alloc();
187 avci->compat_encode_packet = av_packet_alloc();
188 if (!avci->to_free || !avci->compat_decode_frame || !avci->compat_encode_packet) {
189 ret = AVERROR(ENOMEM);
193 avci->buffer_frame = av_frame_alloc();
194 avci->buffer_pkt = av_packet_alloc();
195 avci->es.in_frame = av_frame_alloc();
196 avci->ds.in_pkt = av_packet_alloc();
197 avci->last_pkt_props = av_packet_alloc();
198 avci->pkt_props = av_fifo_alloc(sizeof(*avci->last_pkt_props));
199 if (!avci->buffer_frame || !avci->buffer_pkt ||
200 !avci->es.in_frame || !avci->ds.in_pkt ||
201 !avci->last_pkt_props || !avci->pkt_props) {
202 ret = AVERROR(ENOMEM);
206 avci->skip_samples_multiplier = 1;
208 if (codec->priv_data_size > 0) {
209 if (!avctx->priv_data) {
210 avctx->priv_data = av_mallocz(codec->priv_data_size);
211 if (!avctx->priv_data) {
212 ret = AVERROR(ENOMEM);
215 if (codec->priv_class) {
216 *(const AVClass **)avctx->priv_data = codec->priv_class;
217 av_opt_set_defaults(avctx->priv_data);
220 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
223 avctx->priv_data = NULL;
225 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
228 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
229 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
230 ret = AVERROR(EINVAL);
234 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
235 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
236 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
237 if (avctx->coded_width && avctx->coded_height)
238 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
239 else if (avctx->width && avctx->height)
240 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
245 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
246 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
247 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
248 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
249 ff_set_dimensions(avctx, 0, 0);
252 if (avctx->width > 0 && avctx->height > 0) {
253 if (av_image_check_sar(avctx->width, avctx->height,
254 avctx->sample_aspect_ratio) < 0) {
255 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
256 avctx->sample_aspect_ratio.num,
257 avctx->sample_aspect_ratio.den);
258 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
262 if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
263 av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
264 ret = AVERROR(EINVAL);
268 if (avctx->sample_rate < 0) {
269 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
270 ret = AVERROR(EINVAL);
273 if (avctx->block_align < 0) {
274 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
275 ret = AVERROR(EINVAL);
279 avctx->frame_number = 0;
280 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
282 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
283 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
284 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
285 const AVCodec *codec2;
286 av_log(avctx, AV_LOG_ERROR,
287 "The %s '%s' is experimental but experimental codecs are not enabled, "
288 "add '-strict %d' if you want to use it.\n",
289 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
290 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
291 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
292 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
293 codec_string, codec2->name);
294 ret = AVERROR_EXPERIMENTAL;
298 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
299 (!avctx->time_base.num || !avctx->time_base.den)) {
300 avctx->time_base.num = 1;
301 avctx->time_base.den = avctx->sample_rate;
304 if (av_codec_is_encoder(avctx->codec))
305 ret = ff_encode_preinit(avctx);
307 ret = ff_decode_preinit(avctx);
312 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
314 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
315 unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
316 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
323 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
324 ret = ff_thread_init(avctx);
329 if (!HAVE_THREADS && !(codec->caps_internal & FF_CODEC_CAP_AUTO_THREADS))
330 avctx->thread_count = 1;
332 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
333 || avci->frame_thread_encoder)) {
334 ret = avctx->codec->init(avctx);
344 if (av_codec_is_decoder(avctx->codec)) {
345 if (!avctx->bit_rate)
346 avctx->bit_rate = get_bit_rate(avctx);
347 /* validate channel layout from the decoder */
348 if (avctx->channel_layout) {
349 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
350 if (!avctx->channels)
351 avctx->channels = channels;
352 else if (channels != avctx->channels) {
354 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
355 av_log(avctx, AV_LOG_WARNING,
356 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
357 "ignoring specified channel layout\n",
358 buf, channels, avctx->channels);
359 avctx->channel_layout = 0;
362 if (avctx->channels && avctx->channels < 0 ||
363 avctx->channels > FF_SANE_NB_CHANNELS) {
364 ret = AVERROR(EINVAL);
367 if (avctx->bits_per_coded_sample < 0) {
368 ret = AVERROR(EINVAL);
372 #if FF_API_AVCTX_TIMEBASE
373 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
374 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
377 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
378 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
382 unlock_avcodec(codec);
384 av_dict_free(options);
390 if (avctx->codec && avctx->codec->close &&
391 (codec_init_ok > 0 || (codec_init_ok < 0 &&
392 avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
393 avctx->codec->close(avctx);
395 if (HAVE_THREADS && avci->thread_ctx)
396 ff_thread_free(avctx);
398 if (codec->priv_class && avctx->priv_data)
399 av_opt_free(avctx->priv_data);
402 if (av_codec_is_encoder(avctx->codec)) {
403 av_freep(&avctx->extradata);
404 avctx->extradata_size = 0;
408 av_freep(&avctx->priv_data);
409 if (av_codec_is_decoder(avctx->codec))
410 av_freep(&avctx->subtitle_header);
412 #if FF_API_OLD_ENCDEC
413 av_frame_free(&avci->to_free);
414 av_frame_free(&avci->compat_decode_frame);
415 av_packet_free(&avci->compat_encode_packet);
417 av_frame_free(&avci->buffer_frame);
418 av_packet_free(&avci->buffer_pkt);
419 av_packet_free(&avci->last_pkt_props);
420 av_fifo_freep(&avci->pkt_props);
422 av_packet_free(&avci->ds.in_pkt);
423 av_frame_free(&avci->es.in_frame);
424 av_bsf_free(&avci->bsf);
426 av_buffer_unref(&avci->pool);
428 avctx->internal = NULL;
433 void avcodec_flush_buffers(AVCodecContext *avctx)
435 AVCodecInternal *avci = avctx->internal;
437 if (av_codec_is_encoder(avctx->codec)) {
438 int caps = avctx->codec->capabilities;
440 if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
441 // Only encoders that explicitly declare support for it can be
442 // flushed. Otherwise, this is a no-op.
443 av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
444 "that doesn't support it\n");
448 // We haven't implemented flushing for frame-threaded encoders.
449 av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
453 avci->draining_done = 0;
454 avci->nb_draining_errors = 0;
455 av_frame_unref(avci->buffer_frame);
456 #if FF_API_OLD_ENCDEC
457 av_frame_unref(avci->compat_decode_frame);
458 av_packet_unref(avci->compat_encode_packet);
460 av_packet_unref(avci->buffer_pkt);
462 av_packet_unref(avci->last_pkt_props);
463 while (av_fifo_size(avci->pkt_props) >= sizeof(*avci->last_pkt_props)) {
464 av_fifo_generic_read(avci->pkt_props,
465 avci->last_pkt_props, sizeof(*avci->last_pkt_props),
467 av_packet_unref(avci->last_pkt_props);
469 av_fifo_reset(avci->pkt_props);
471 av_frame_unref(avci->es.in_frame);
472 av_packet_unref(avci->ds.in_pkt);
474 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
475 ff_thread_flush(avctx);
476 else if (avctx->codec->flush)
477 avctx->codec->flush(avctx);
479 avctx->pts_correction_last_pts =
480 avctx->pts_correction_last_dts = INT64_MIN;
482 if (av_codec_is_decoder(avctx->codec))
483 av_bsf_flush(avci->bsf);
485 #if FF_API_OLD_ENCDEC
486 FF_DISABLE_DEPRECATION_WARNINGS
487 if (!avctx->refcounted_frames)
488 av_frame_unref(avci->to_free);
489 FF_ENABLE_DEPRECATION_WARNINGS
493 void avsubtitle_free(AVSubtitle *sub)
497 for (i = 0; i < sub->num_rects; i++) {
498 av_freep(&sub->rects[i]->data[0]);
499 av_freep(&sub->rects[i]->data[1]);
500 av_freep(&sub->rects[i]->data[2]);
501 av_freep(&sub->rects[i]->data[3]);
502 av_freep(&sub->rects[i]->text);
503 av_freep(&sub->rects[i]->ass);
504 av_freep(&sub->rects[i]);
507 av_freep(&sub->rects);
509 memset(sub, 0, sizeof(*sub));
512 av_cold int avcodec_close(AVCodecContext *avctx)
519 if (avcodec_is_open(avctx)) {
520 AVCodecInternal *avci = avctx->internal;
522 if (CONFIG_FRAME_THREAD_ENCODER &&
523 avci->frame_thread_encoder && avctx->thread_count > 1) {
524 ff_frame_thread_encoder_free(avctx);
526 if (HAVE_THREADS && avci->thread_ctx)
527 ff_thread_free(avctx);
528 if (avctx->codec && avctx->codec->close)
529 avctx->codec->close(avctx);
530 avci->byte_buffer_size = 0;
531 av_freep(&avci->byte_buffer);
532 #if FF_API_OLD_ENCDEC
533 av_frame_free(&avci->to_free);
534 av_frame_free(&avci->compat_decode_frame);
535 av_packet_free(&avci->compat_encode_packet);
537 av_frame_free(&avci->buffer_frame);
538 av_packet_free(&avci->buffer_pkt);
539 av_packet_unref(avci->last_pkt_props);
540 while (av_fifo_size(avci->pkt_props) >= sizeof(*avci->last_pkt_props)) {
541 av_fifo_generic_read(avci->pkt_props, avci->last_pkt_props,
542 sizeof(*avci->last_pkt_props), NULL);
543 av_packet_unref(avci->last_pkt_props);
545 av_packet_free(&avci->last_pkt_props);
546 av_fifo_freep(&avci->pkt_props);
548 av_packet_free(&avci->ds.in_pkt);
549 av_frame_free(&avci->es.in_frame);
551 av_buffer_unref(&avci->pool);
553 if (avctx->hwaccel && avctx->hwaccel->uninit)
554 avctx->hwaccel->uninit(avctx);
555 av_freep(&avci->hwaccel_priv_data);
557 av_bsf_free(&avci->bsf);
559 av_freep(&avctx->internal);
562 for (i = 0; i < avctx->nb_coded_side_data; i++)
563 av_freep(&avctx->coded_side_data[i].data);
564 av_freep(&avctx->coded_side_data);
565 avctx->nb_coded_side_data = 0;
567 av_buffer_unref(&avctx->hw_frames_ctx);
568 av_buffer_unref(&avctx->hw_device_ctx);
570 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
571 av_opt_free(avctx->priv_data);
573 av_freep(&avctx->priv_data);
574 if (av_codec_is_encoder(avctx->codec)) {
575 av_freep(&avctx->extradata);
576 } else if (av_codec_is_decoder(avctx->codec))
577 av_freep(&avctx->subtitle_header);
580 avctx->active_thread_type = 0;
585 static const char *unknown_if_null(const char *str)
587 return str ? str : "unknown";
590 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
592 const char *codec_type;
593 const char *codec_name;
594 const char *profile = NULL;
598 AVRational display_aspect_ratio;
599 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
602 if (!buf || buf_size <= 0)
604 av_bprint_init_for_buffer(&bprint, buf, buf_size);
605 codec_type = av_get_media_type_string(enc->codec_type);
606 codec_name = avcodec_get_name(enc->codec_id);
607 profile = avcodec_profile_name(enc->codec_id, enc->profile);
609 av_bprintf(&bprint, "%s: %s", codec_type ? codec_type : "unknown",
611 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
613 if (enc->codec && strcmp(enc->codec->name, codec_name))
614 av_bprintf(&bprint, " (%s)", enc->codec->name);
617 av_bprintf(&bprint, " (%s)", profile);
618 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
619 && av_log_get_level() >= AV_LOG_VERBOSE
621 av_bprintf(&bprint, ", %d reference frame%s",
622 enc->refs, enc->refs > 1 ? "s" : "");
625 av_bprintf(&bprint, " (%s / 0x%04X)",
626 av_fourcc2str(enc->codec_tag), enc->codec_tag);
628 switch (enc->codec_type) {
629 case AVMEDIA_TYPE_VIDEO:
633 av_bprintf(&bprint, "%s%s", separator,
634 enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
635 unknown_if_null(av_get_pix_fmt_name(enc->pix_fmt)));
637 av_bprint_chars(&bprint, '(', 1);
640 /* The following check ensures that '(' has been written
641 * and therefore allows us to erase it if it turns out
642 * to be unnecessary. */
643 if (!av_bprint_is_complete(&bprint))
646 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
647 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
648 av_bprintf(&bprint, "%d bpc, ", enc->bits_per_raw_sample);
649 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED &&
650 (str = av_color_range_name(enc->color_range)))
651 av_bprintf(&bprint, "%s, ", str);
653 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
654 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
655 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
656 const char *col = unknown_if_null(av_color_space_name(enc->colorspace));
657 const char *pri = unknown_if_null(av_color_primaries_name(enc->color_primaries));
658 const char *trc = unknown_if_null(av_color_transfer_name(enc->color_trc));
659 if (strcmp(col, pri) || strcmp(col, trc)) {
661 av_bprintf(&bprint, "%s/%s/%s, ", col, pri, trc);
663 av_bprintf(&bprint, "%s, ", col);
666 if (enc->field_order != AV_FIELD_UNKNOWN) {
667 const char *field_order = "progressive";
668 if (enc->field_order == AV_FIELD_TT)
669 field_order = "top first";
670 else if (enc->field_order == AV_FIELD_BB)
671 field_order = "bottom first";
672 else if (enc->field_order == AV_FIELD_TB)
673 field_order = "top coded first (swapped)";
674 else if (enc->field_order == AV_FIELD_BT)
675 field_order = "bottom coded first (swapped)";
677 av_bprintf(&bprint, "%s, ", field_order);
680 if (av_log_get_level() >= AV_LOG_VERBOSE &&
681 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED &&
682 (str = av_chroma_location_name(enc->chroma_sample_location)))
683 av_bprintf(&bprint, "%s, ", str);
685 if (len == bprint.len) {
686 bprint.str[len - 1] = '\0';
689 if (bprint.len - 2 < bprint.size) {
690 /* Erase the last ", " */
692 bprint.str[bprint.len] = '\0';
694 av_bprint_chars(&bprint, ')', 1);
699 av_bprintf(&bprint, "%s%dx%d", new_line ? separator : ", ",
700 enc->width, enc->height);
702 if (av_log_get_level() >= AV_LOG_VERBOSE &&
703 (enc->width != enc->coded_width ||
704 enc->height != enc->coded_height))
705 av_bprintf(&bprint, " (%dx%d)",
706 enc->coded_width, enc->coded_height);
708 if (enc->sample_aspect_ratio.num) {
709 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
710 enc->width * (int64_t)enc->sample_aspect_ratio.num,
711 enc->height * (int64_t)enc->sample_aspect_ratio.den,
713 av_bprintf(&bprint, " [SAR %d:%d DAR %d:%d]",
714 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
715 display_aspect_ratio.num, display_aspect_ratio.den);
717 if (av_log_get_level() >= AV_LOG_DEBUG) {
718 int g = av_gcd(enc->time_base.num, enc->time_base.den);
719 av_bprintf(&bprint, ", %d/%d",
720 enc->time_base.num / g, enc->time_base.den / g);
724 av_bprintf(&bprint, ", q=%d-%d", enc->qmin, enc->qmax);
726 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
727 av_bprintf(&bprint, ", Closed Captions");
728 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
729 av_bprintf(&bprint, ", lossless");
732 case AVMEDIA_TYPE_AUDIO:
733 av_bprintf(&bprint, "%s", separator);
735 if (enc->sample_rate) {
736 av_bprintf(&bprint, "%d Hz, ", enc->sample_rate);
738 av_bprint_channel_layout(&bprint, enc->channels, enc->channel_layout);
739 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE &&
740 (str = av_get_sample_fmt_name(enc->sample_fmt))) {
741 av_bprintf(&bprint, ", %s", str);
743 if ( enc->bits_per_raw_sample > 0
744 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
745 av_bprintf(&bprint, " (%d bit)", enc->bits_per_raw_sample);
746 if (av_log_get_level() >= AV_LOG_VERBOSE) {
747 if (enc->initial_padding)
748 av_bprintf(&bprint, ", delay %d", enc->initial_padding);
749 if (enc->trailing_padding)
750 av_bprintf(&bprint, ", padding %d", enc->trailing_padding);
753 case AVMEDIA_TYPE_DATA:
754 if (av_log_get_level() >= AV_LOG_DEBUG) {
755 int g = av_gcd(enc->time_base.num, enc->time_base.den);
757 av_bprintf(&bprint, ", %d/%d",
758 enc->time_base.num / g, enc->time_base.den / g);
761 case AVMEDIA_TYPE_SUBTITLE:
763 av_bprintf(&bprint, ", %dx%d", enc->width, enc->height);
769 if (enc->flags & AV_CODEC_FLAG_PASS1)
770 av_bprintf(&bprint, ", pass 1");
771 if (enc->flags & AV_CODEC_FLAG_PASS2)
772 av_bprintf(&bprint, ", pass 2");
774 bitrate = get_bit_rate(enc);
776 av_bprintf(&bprint, ", %"PRId64" kb/s", bitrate / 1000);
777 } else if (enc->rc_max_rate > 0) {
778 av_bprintf(&bprint, ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
782 int avcodec_is_open(AVCodecContext *s)
784 return !!s->internal;