3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
33 #include "libavutil/channel_layout.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
51 #include "frame_thread_encoder.h"
54 #include "bytestream.h"
58 #include <stdatomic.h>
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
68 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
73 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
78 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
85 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
90 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
94 int av_codec_is_encoder(const AVCodec *codec)
96 return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
99 int av_codec_is_decoder(const AVCodec *codec)
101 return codec && (codec->decode || codec->receive_frame);
104 int ff_set_dimensions(AVCodecContext *s, int width, int height)
106 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
111 s->coded_width = width;
112 s->coded_height = height;
113 s->width = AV_CEIL_RSHIFT(width, s->lowres);
114 s->height = AV_CEIL_RSHIFT(height, s->lowres);
119 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
121 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
124 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
126 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
129 avctx->sample_aspect_ratio = sar;
134 int ff_side_data_update_matrix_encoding(AVFrame *frame,
135 enum AVMatrixEncoding matrix_encoding)
137 AVFrameSideData *side_data;
138 enum AVMatrixEncoding *data;
140 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
142 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
143 sizeof(enum AVMatrixEncoding));
146 return AVERROR(ENOMEM);
148 data = (enum AVMatrixEncoding*)side_data->data;
149 *data = matrix_encoding;
154 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
155 int linesize_align[AV_NUM_DATA_POINTERS])
160 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
163 w_align = 1 << desc->log2_chroma_w;
164 h_align = 1 << desc->log2_chroma_h;
167 switch (s->pix_fmt) {
168 case AV_PIX_FMT_YUV420P:
169 case AV_PIX_FMT_YUYV422:
170 case AV_PIX_FMT_YVYU422:
171 case AV_PIX_FMT_UYVY422:
172 case AV_PIX_FMT_YUV422P:
173 case AV_PIX_FMT_YUV440P:
174 case AV_PIX_FMT_YUV444P:
175 case AV_PIX_FMT_GBRP:
176 case AV_PIX_FMT_GBRAP:
177 case AV_PIX_FMT_GRAY8:
178 case AV_PIX_FMT_GRAY16BE:
179 case AV_PIX_FMT_GRAY16LE:
180 case AV_PIX_FMT_YUVJ420P:
181 case AV_PIX_FMT_YUVJ422P:
182 case AV_PIX_FMT_YUVJ440P:
183 case AV_PIX_FMT_YUVJ444P:
184 case AV_PIX_FMT_YUVA420P:
185 case AV_PIX_FMT_YUVA422P:
186 case AV_PIX_FMT_YUVA444P:
187 case AV_PIX_FMT_YUV420P9LE:
188 case AV_PIX_FMT_YUV420P9BE:
189 case AV_PIX_FMT_YUV420P10LE:
190 case AV_PIX_FMT_YUV420P10BE:
191 case AV_PIX_FMT_YUV420P12LE:
192 case AV_PIX_FMT_YUV420P12BE:
193 case AV_PIX_FMT_YUV420P14LE:
194 case AV_PIX_FMT_YUV420P14BE:
195 case AV_PIX_FMT_YUV420P16LE:
196 case AV_PIX_FMT_YUV420P16BE:
197 case AV_PIX_FMT_YUVA420P9LE:
198 case AV_PIX_FMT_YUVA420P9BE:
199 case AV_PIX_FMT_YUVA420P10LE:
200 case AV_PIX_FMT_YUVA420P10BE:
201 case AV_PIX_FMT_YUVA420P16LE:
202 case AV_PIX_FMT_YUVA420P16BE:
203 case AV_PIX_FMT_YUV422P9LE:
204 case AV_PIX_FMT_YUV422P9BE:
205 case AV_PIX_FMT_YUV422P10LE:
206 case AV_PIX_FMT_YUV422P10BE:
207 case AV_PIX_FMT_YUV422P12LE:
208 case AV_PIX_FMT_YUV422P12BE:
209 case AV_PIX_FMT_YUV422P14LE:
210 case AV_PIX_FMT_YUV422P14BE:
211 case AV_PIX_FMT_YUV422P16LE:
212 case AV_PIX_FMT_YUV422P16BE:
213 case AV_PIX_FMT_YUVA422P9LE:
214 case AV_PIX_FMT_YUVA422P9BE:
215 case AV_PIX_FMT_YUVA422P10LE:
216 case AV_PIX_FMT_YUVA422P10BE:
217 case AV_PIX_FMT_YUVA422P16LE:
218 case AV_PIX_FMT_YUVA422P16BE:
219 case AV_PIX_FMT_YUV440P10LE:
220 case AV_PIX_FMT_YUV440P10BE:
221 case AV_PIX_FMT_YUV440P12LE:
222 case AV_PIX_FMT_YUV440P12BE:
223 case AV_PIX_FMT_YUV444P9LE:
224 case AV_PIX_FMT_YUV444P9BE:
225 case AV_PIX_FMT_YUV444P10LE:
226 case AV_PIX_FMT_YUV444P10BE:
227 case AV_PIX_FMT_YUV444P12LE:
228 case AV_PIX_FMT_YUV444P12BE:
229 case AV_PIX_FMT_YUV444P14LE:
230 case AV_PIX_FMT_YUV444P14BE:
231 case AV_PIX_FMT_YUV444P16LE:
232 case AV_PIX_FMT_YUV444P16BE:
233 case AV_PIX_FMT_YUVA444P9LE:
234 case AV_PIX_FMT_YUVA444P9BE:
235 case AV_PIX_FMT_YUVA444P10LE:
236 case AV_PIX_FMT_YUVA444P10BE:
237 case AV_PIX_FMT_YUVA444P16LE:
238 case AV_PIX_FMT_YUVA444P16BE:
239 case AV_PIX_FMT_GBRP9LE:
240 case AV_PIX_FMT_GBRP9BE:
241 case AV_PIX_FMT_GBRP10LE:
242 case AV_PIX_FMT_GBRP10BE:
243 case AV_PIX_FMT_GBRP12LE:
244 case AV_PIX_FMT_GBRP12BE:
245 case AV_PIX_FMT_GBRP14LE:
246 case AV_PIX_FMT_GBRP14BE:
247 case AV_PIX_FMT_GBRP16LE:
248 case AV_PIX_FMT_GBRP16BE:
249 case AV_PIX_FMT_GBRAP12LE:
250 case AV_PIX_FMT_GBRAP12BE:
251 case AV_PIX_FMT_GBRAP16LE:
252 case AV_PIX_FMT_GBRAP16BE:
253 w_align = 16; //FIXME assume 16 pixel per macroblock
254 h_align = 16 * 2; // interlaced needs 2 macroblocks height
256 case AV_PIX_FMT_YUV411P:
257 case AV_PIX_FMT_YUVJ411P:
258 case AV_PIX_FMT_UYYVYY411:
262 case AV_PIX_FMT_YUV410P:
263 if (s->codec_id == AV_CODEC_ID_SVQ1) {
268 case AV_PIX_FMT_RGB555:
269 if (s->codec_id == AV_CODEC_ID_RPZA) {
273 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
278 case AV_PIX_FMT_PAL8:
279 case AV_PIX_FMT_BGR8:
280 case AV_PIX_FMT_RGB8:
281 if (s->codec_id == AV_CODEC_ID_SMC ||
282 s->codec_id == AV_CODEC_ID_CINEPAK) {
286 if (s->codec_id == AV_CODEC_ID_JV ||
287 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
292 case AV_PIX_FMT_BGR24:
293 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
294 (s->codec_id == AV_CODEC_ID_ZLIB)) {
299 case AV_PIX_FMT_RGB24:
300 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
309 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
310 w_align = FFMAX(w_align, 8);
313 *width = FFALIGN(*width, w_align);
314 *height = FFALIGN(*height, h_align);
315 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
316 // some of the optimized chroma MC reads one line too much
317 // which is also done in mpeg decoders with lowres > 0
320 // H.264 uses edge emulation for out of frame motion vectors, for this
321 // it requires a temporary area large enough to hold a 21x21 block,
322 // increasing witdth ensure that the temporary area is large enough,
323 // the next rounded up width is 32
324 *width = FFMAX(*width, 32);
327 for (i = 0; i < 4; i++)
328 linesize_align[i] = STRIDE_ALIGN;
331 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
333 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
334 int chroma_shift = desc->log2_chroma_w;
335 int linesize_align[AV_NUM_DATA_POINTERS];
338 avcodec_align_dimensions2(s, width, height, linesize_align);
339 align = FFMAX(linesize_align[0], linesize_align[3]);
340 linesize_align[1] <<= chroma_shift;
341 linesize_align[2] <<= chroma_shift;
342 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
343 *width = FFALIGN(*width, align);
346 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
348 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
349 return AVERROR(EINVAL);
352 *xpos = (pos&1) * 128;
353 *ypos = ((pos>>1)^(pos<4)) * 128;
358 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
362 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
363 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
366 return AVCHROMA_LOC_UNSPECIFIED;
369 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
370 enum AVSampleFormat sample_fmt, const uint8_t *buf,
371 int buf_size, int align)
373 int ch, planar, needed_size, ret = 0;
375 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
376 frame->nb_samples, sample_fmt,
378 if (buf_size < needed_size)
379 return AVERROR(EINVAL);
381 planar = av_sample_fmt_is_planar(sample_fmt);
382 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
383 if (!(frame->extended_data = av_mallocz_array(nb_channels,
384 sizeof(*frame->extended_data))))
385 return AVERROR(ENOMEM);
387 frame->extended_data = frame->data;
390 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
391 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
392 sample_fmt, align)) < 0) {
393 if (frame->extended_data != frame->data)
394 av_freep(&frame->extended_data);
397 if (frame->extended_data != frame->data) {
398 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
399 frame->data[ch] = frame->extended_data[ch];
405 void ff_color_frame(AVFrame *frame, const int c[4])
407 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
410 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
412 for (p = 0; p<desc->nb_components; p++) {
413 uint8_t *dst = frame->data[p];
414 int is_chroma = p == 1 || p == 2;
415 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
416 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
417 for (y = 0; y < height; y++) {
418 if (desc->comp[0].depth >= 9) {
419 for (x = 0; x<bytes; x++)
420 ((uint16_t*)dst)[x] = c[p];
422 memset(dst, c[p], bytes);
423 dst += frame->linesize[p];
428 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
432 for (i = 0; i < count; i++) {
433 int r = func(c, (char *)arg + i * size);
441 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
445 for (i = 0; i < count; i++) {
446 int r = func(c, arg, i, 0);
454 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
457 while (tags->pix_fmt >= 0) {
458 if (tags->fourcc == fourcc)
459 return tags->pix_fmt;
462 return AV_PIX_FMT_NONE;
465 #if FF_API_CODEC_GET_SET
466 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
467 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
468 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
469 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
470 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
472 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
474 return codec->properties;
477 int av_codec_get_max_lowres(const AVCodec *codec)
479 return codec->max_lowres;
483 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
484 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
487 static int64_t get_bit_rate(AVCodecContext *ctx)
492 switch (ctx->codec_type) {
493 case AVMEDIA_TYPE_VIDEO:
494 case AVMEDIA_TYPE_DATA:
495 case AVMEDIA_TYPE_SUBTITLE:
496 case AVMEDIA_TYPE_ATTACHMENT:
497 bit_rate = ctx->bit_rate;
499 case AVMEDIA_TYPE_AUDIO:
500 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
501 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
511 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
513 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
514 ff_mutex_lock(&codec_mutex);
517 static void ff_unlock_avcodec(const AVCodec *codec)
519 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
520 ff_mutex_unlock(&codec_mutex);
523 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
527 ff_unlock_avcodec(codec);
529 ret = avcodec_open2(avctx, codec, options);
531 ff_lock_avcodec(avctx, codec);
535 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
538 AVDictionary *tmp = NULL;
539 const AVPixFmtDescriptor *pixdesc;
541 if (avcodec_is_open(avctx))
544 if ((!codec && !avctx->codec)) {
545 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
546 return AVERROR(EINVAL);
548 if ((codec && avctx->codec && codec != avctx->codec)) {
549 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
550 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
551 return AVERROR(EINVAL);
554 codec = avctx->codec;
556 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
557 return AVERROR(EINVAL);
560 av_dict_copy(&tmp, *options, 0);
562 ff_lock_avcodec(avctx, codec);
564 avctx->internal = av_mallocz(sizeof(*avctx->internal));
565 if (!avctx->internal) {
566 ret = AVERROR(ENOMEM);
570 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
571 if (!avctx->internal->pool) {
572 ret = AVERROR(ENOMEM);
576 avctx->internal->to_free = av_frame_alloc();
577 if (!avctx->internal->to_free) {
578 ret = AVERROR(ENOMEM);
582 avctx->internal->compat_decode_frame = av_frame_alloc();
583 if (!avctx->internal->compat_decode_frame) {
584 ret = AVERROR(ENOMEM);
588 avctx->internal->buffer_frame = av_frame_alloc();
589 if (!avctx->internal->buffer_frame) {
590 ret = AVERROR(ENOMEM);
594 avctx->internal->buffer_pkt = av_packet_alloc();
595 if (!avctx->internal->buffer_pkt) {
596 ret = AVERROR(ENOMEM);
600 avctx->internal->ds.in_pkt = av_packet_alloc();
601 if (!avctx->internal->ds.in_pkt) {
602 ret = AVERROR(ENOMEM);
606 avctx->internal->last_pkt_props = av_packet_alloc();
607 if (!avctx->internal->last_pkt_props) {
608 ret = AVERROR(ENOMEM);
612 avctx->internal->skip_samples_multiplier = 1;
614 if (codec->priv_data_size > 0) {
615 if (!avctx->priv_data) {
616 avctx->priv_data = av_mallocz(codec->priv_data_size);
617 if (!avctx->priv_data) {
618 ret = AVERROR(ENOMEM);
621 if (codec->priv_class) {
622 *(const AVClass **)avctx->priv_data = codec->priv_class;
623 av_opt_set_defaults(avctx->priv_data);
626 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
629 avctx->priv_data = NULL;
631 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
634 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
635 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
636 ret = AVERROR(EINVAL);
640 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
641 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
642 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
643 if (avctx->coded_width && avctx->coded_height)
644 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
645 else if (avctx->width && avctx->height)
646 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
651 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
652 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
653 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
654 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
655 ff_set_dimensions(avctx, 0, 0);
658 if (avctx->width > 0 && avctx->height > 0) {
659 if (av_image_check_sar(avctx->width, avctx->height,
660 avctx->sample_aspect_ratio) < 0) {
661 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
662 avctx->sample_aspect_ratio.num,
663 avctx->sample_aspect_ratio.den);
664 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
668 /* if the decoder init function was already called previously,
669 * free the already allocated subtitle_header before overwriting it */
670 if (av_codec_is_decoder(codec))
671 av_freep(&avctx->subtitle_header);
673 if (avctx->channels > FF_SANE_NB_CHANNELS) {
674 ret = AVERROR(EINVAL);
678 avctx->codec = codec;
679 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
680 avctx->codec_id == AV_CODEC_ID_NONE) {
681 avctx->codec_type = codec->type;
682 avctx->codec_id = codec->id;
684 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
685 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
686 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
687 ret = AVERROR(EINVAL);
690 avctx->frame_number = 0;
691 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
693 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
694 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
695 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
697 av_log(avctx, AV_LOG_ERROR,
698 "The %s '%s' is experimental but experimental codecs are not enabled, "
699 "add '-strict %d' if you want to use it.\n",
700 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
701 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
702 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
703 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
704 codec_string, codec2->name);
705 ret = AVERROR_EXPERIMENTAL;
709 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
710 (!avctx->time_base.num || !avctx->time_base.den)) {
711 avctx->time_base.num = 1;
712 avctx->time_base.den = avctx->sample_rate;
716 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
718 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
719 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
720 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
721 ff_lock_avcodec(avctx, codec);
727 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
728 ret = ff_thread_init(avctx);
733 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
734 avctx->thread_count = 1;
736 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
737 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
738 avctx->codec->max_lowres);
739 avctx->lowres = avctx->codec->max_lowres;
742 if (av_codec_is_encoder(avctx->codec)) {
744 #if FF_API_CODED_FRAME
745 FF_DISABLE_DEPRECATION_WARNINGS
746 avctx->coded_frame = av_frame_alloc();
747 if (!avctx->coded_frame) {
748 ret = AVERROR(ENOMEM);
751 FF_ENABLE_DEPRECATION_WARNINGS
754 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
755 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
756 ret = AVERROR(EINVAL);
760 if (avctx->codec->sample_fmts) {
761 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
762 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
764 if (avctx->channels == 1 &&
765 av_get_planar_sample_fmt(avctx->sample_fmt) ==
766 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
767 avctx->sample_fmt = avctx->codec->sample_fmts[i];
771 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
773 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
774 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
775 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
776 ret = AVERROR(EINVAL);
780 if (avctx->codec->pix_fmts) {
781 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
782 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
784 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
785 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
786 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
788 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
789 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
790 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
791 ret = AVERROR(EINVAL);
794 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
795 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
796 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
797 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
798 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
799 avctx->color_range = AVCOL_RANGE_JPEG;
801 if (avctx->codec->supported_samplerates) {
802 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
803 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
805 if (avctx->codec->supported_samplerates[i] == 0) {
806 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
808 ret = AVERROR(EINVAL);
812 if (avctx->sample_rate < 0) {
813 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
815 ret = AVERROR(EINVAL);
818 if (avctx->codec->channel_layouts) {
819 if (!avctx->channel_layout) {
820 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
822 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
823 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
825 if (avctx->codec->channel_layouts[i] == 0) {
827 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
828 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
829 ret = AVERROR(EINVAL);
834 if (avctx->channel_layout && avctx->channels) {
835 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
836 if (channels != avctx->channels) {
838 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
839 av_log(avctx, AV_LOG_ERROR,
840 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
841 buf, channels, avctx->channels);
842 ret = AVERROR(EINVAL);
845 } else if (avctx->channel_layout) {
846 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
848 if (avctx->channels < 0) {
849 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
851 ret = AVERROR(EINVAL);
854 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
855 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
856 if ( avctx->bits_per_raw_sample < 0
857 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
858 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
859 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
860 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
862 if (avctx->width <= 0 || avctx->height <= 0) {
863 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
864 ret = AVERROR(EINVAL);
868 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
869 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
870 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
873 if (!avctx->rc_initial_buffer_occupancy)
874 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
876 if (avctx->ticks_per_frame && avctx->time_base.num &&
877 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
878 av_log(avctx, AV_LOG_ERROR,
879 "ticks_per_frame %d too large for the timebase %d/%d.",
880 avctx->ticks_per_frame,
881 avctx->time_base.num,
882 avctx->time_base.den);
886 if (avctx->hw_frames_ctx) {
887 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
888 if (frames_ctx->format != avctx->pix_fmt) {
889 av_log(avctx, AV_LOG_ERROR,
890 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
891 ret = AVERROR(EINVAL);
894 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
895 avctx->sw_pix_fmt != frames_ctx->sw_format) {
896 av_log(avctx, AV_LOG_ERROR,
897 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
898 "and AVHWFramesContext.sw_format (%s)\n",
899 av_get_pix_fmt_name(avctx->sw_pix_fmt),
900 av_get_pix_fmt_name(frames_ctx->sw_format));
901 ret = AVERROR(EINVAL);
904 avctx->sw_pix_fmt = frames_ctx->sw_format;
908 avctx->pts_correction_num_faulty_pts =
909 avctx->pts_correction_num_faulty_dts = 0;
910 avctx->pts_correction_last_pts =
911 avctx->pts_correction_last_dts = INT64_MIN;
913 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
914 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
915 av_log(avctx, AV_LOG_WARNING,
916 "gray decoding requested but not enabled at configuration time\n");
918 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
919 || avctx->internal->frame_thread_encoder)) {
920 ret = avctx->codec->init(avctx);
928 if (av_codec_is_decoder(avctx->codec)) {
929 if (!avctx->bit_rate)
930 avctx->bit_rate = get_bit_rate(avctx);
931 /* validate channel layout from the decoder */
932 if (avctx->channel_layout) {
933 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
934 if (!avctx->channels)
935 avctx->channels = channels;
936 else if (channels != avctx->channels) {
938 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
939 av_log(avctx, AV_LOG_WARNING,
940 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
941 "ignoring specified channel layout\n",
942 buf, channels, avctx->channels);
943 avctx->channel_layout = 0;
946 if (avctx->channels && avctx->channels < 0 ||
947 avctx->channels > FF_SANE_NB_CHANNELS) {
948 ret = AVERROR(EINVAL);
951 if (avctx->sub_charenc) {
952 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
953 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
954 "supported with subtitles codecs\n");
955 ret = AVERROR(EINVAL);
957 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
958 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
959 "subtitles character encoding will be ignored\n",
960 avctx->codec_descriptor->name);
961 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
963 /* input character encoding is set for a text based subtitle
964 * codec at this point */
965 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
966 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
968 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
970 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
971 if (cd == (iconv_t)-1) {
972 ret = AVERROR(errno);
973 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
974 "with input character encoding \"%s\"\n", avctx->sub_charenc);
979 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
980 "conversion needs a libavcodec built with iconv support "
982 ret = AVERROR(ENOSYS);
989 #if FF_API_AVCTX_TIMEBASE
990 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
991 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
994 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
995 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
999 ff_unlock_avcodec(codec);
1001 av_dict_free(options);
1008 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1009 avctx->codec->close(avctx);
1011 if (codec->priv_class && codec->priv_data_size)
1012 av_opt_free(avctx->priv_data);
1015 #if FF_API_CODED_FRAME
1016 FF_DISABLE_DEPRECATION_WARNINGS
1017 av_frame_free(&avctx->coded_frame);
1018 FF_ENABLE_DEPRECATION_WARNINGS
1022 av_freep(&avctx->priv_data);
1023 if (avctx->internal) {
1024 av_frame_free(&avctx->internal->to_free);
1025 av_frame_free(&avctx->internal->compat_decode_frame);
1026 av_frame_free(&avctx->internal->buffer_frame);
1027 av_packet_free(&avctx->internal->buffer_pkt);
1028 av_packet_free(&avctx->internal->last_pkt_props);
1030 av_packet_free(&avctx->internal->ds.in_pkt);
1032 av_freep(&avctx->internal->pool);
1034 av_freep(&avctx->internal);
1035 avctx->codec = NULL;
1039 void avsubtitle_free(AVSubtitle *sub)
1043 for (i = 0; i < sub->num_rects; i++) {
1044 av_freep(&sub->rects[i]->data[0]);
1045 av_freep(&sub->rects[i]->data[1]);
1046 av_freep(&sub->rects[i]->data[2]);
1047 av_freep(&sub->rects[i]->data[3]);
1048 av_freep(&sub->rects[i]->text);
1049 av_freep(&sub->rects[i]->ass);
1050 av_freep(&sub->rects[i]);
1053 av_freep(&sub->rects);
1055 memset(sub, 0, sizeof(*sub));
1058 av_cold int avcodec_close(AVCodecContext *avctx)
1065 if (avcodec_is_open(avctx)) {
1066 FramePool *pool = avctx->internal->pool;
1067 if (CONFIG_FRAME_THREAD_ENCODER &&
1068 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1069 ff_frame_thread_encoder_free(avctx);
1071 if (HAVE_THREADS && avctx->internal->thread_ctx)
1072 ff_thread_free(avctx);
1073 if (avctx->codec && avctx->codec->close)
1074 avctx->codec->close(avctx);
1075 avctx->internal->byte_buffer_size = 0;
1076 av_freep(&avctx->internal->byte_buffer);
1077 av_frame_free(&avctx->internal->to_free);
1078 av_frame_free(&avctx->internal->compat_decode_frame);
1079 av_frame_free(&avctx->internal->buffer_frame);
1080 av_packet_free(&avctx->internal->buffer_pkt);
1081 av_packet_free(&avctx->internal->last_pkt_props);
1083 av_packet_free(&avctx->internal->ds.in_pkt);
1085 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1086 av_buffer_pool_uninit(&pool->pools[i]);
1087 av_freep(&avctx->internal->pool);
1089 if (avctx->hwaccel && avctx->hwaccel->uninit)
1090 avctx->hwaccel->uninit(avctx);
1091 av_freep(&avctx->internal->hwaccel_priv_data);
1093 ff_decode_bsfs_uninit(avctx);
1095 av_freep(&avctx->internal);
1098 for (i = 0; i < avctx->nb_coded_side_data; i++)
1099 av_freep(&avctx->coded_side_data[i].data);
1100 av_freep(&avctx->coded_side_data);
1101 avctx->nb_coded_side_data = 0;
1103 av_buffer_unref(&avctx->hw_frames_ctx);
1104 av_buffer_unref(&avctx->hw_device_ctx);
1106 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1107 av_opt_free(avctx->priv_data);
1109 av_freep(&avctx->priv_data);
1110 if (av_codec_is_encoder(avctx->codec)) {
1111 av_freep(&avctx->extradata);
1112 #if FF_API_CODED_FRAME
1113 FF_DISABLE_DEPRECATION_WARNINGS
1114 av_frame_free(&avctx->coded_frame);
1115 FF_ENABLE_DEPRECATION_WARNINGS
1118 avctx->codec = NULL;
1119 avctx->active_thread_type = 0;
1124 const char *avcodec_get_name(enum AVCodecID id)
1126 const AVCodecDescriptor *cd;
1129 if (id == AV_CODEC_ID_NONE)
1131 cd = avcodec_descriptor_get(id);
1134 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1135 codec = avcodec_find_decoder(id);
1138 codec = avcodec_find_encoder(id);
1141 return "unknown_codec";
1144 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1146 int i, len, ret = 0;
1148 #define TAG_PRINT(x) \
1149 (((x) >= '0' && (x) <= '9') || \
1150 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1151 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1153 for (i = 0; i < 4; i++) {
1154 len = snprintf(buf, buf_size,
1155 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1157 buf_size = buf_size > len ? buf_size - len : 0;
1164 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1166 const char *codec_type;
1167 const char *codec_name;
1168 const char *profile = NULL;
1171 AVRational display_aspect_ratio;
1172 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1174 if (!buf || buf_size <= 0)
1176 codec_type = av_get_media_type_string(enc->codec_type);
1177 codec_name = avcodec_get_name(enc->codec_id);
1178 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1180 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1182 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1184 if (enc->codec && strcmp(enc->codec->name, codec_name))
1185 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1188 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1189 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1190 && av_log_get_level() >= AV_LOG_VERBOSE
1192 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1193 ", %d reference frame%s",
1194 enc->refs, enc->refs > 1 ? "s" : "");
1197 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1198 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1200 switch (enc->codec_type) {
1201 case AVMEDIA_TYPE_VIDEO:
1203 char detail[256] = "(";
1205 av_strlcat(buf, separator, buf_size);
1207 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1208 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1209 av_get_pix_fmt_name(enc->pix_fmt));
1210 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1211 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1212 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1213 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1214 av_strlcatf(detail, sizeof(detail), "%s, ",
1215 av_color_range_name(enc->color_range));
1217 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1218 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1219 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1220 if (enc->colorspace != (int)enc->color_primaries ||
1221 enc->colorspace != (int)enc->color_trc) {
1223 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1224 av_color_space_name(enc->colorspace),
1225 av_color_primaries_name(enc->color_primaries),
1226 av_color_transfer_name(enc->color_trc));
1228 av_strlcatf(detail, sizeof(detail), "%s, ",
1229 av_get_colorspace_name(enc->colorspace));
1232 if (enc->field_order != AV_FIELD_UNKNOWN) {
1233 const char *field_order = "progressive";
1234 if (enc->field_order == AV_FIELD_TT)
1235 field_order = "top first";
1236 else if (enc->field_order == AV_FIELD_BB)
1237 field_order = "bottom first";
1238 else if (enc->field_order == AV_FIELD_TB)
1239 field_order = "top coded first (swapped)";
1240 else if (enc->field_order == AV_FIELD_BT)
1241 field_order = "bottom coded first (swapped)";
1243 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1246 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1247 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1248 av_strlcatf(detail, sizeof(detail), "%s, ",
1249 av_chroma_location_name(enc->chroma_sample_location));
1251 if (strlen(detail) > 1) {
1252 detail[strlen(detail) - 2] = 0;
1253 av_strlcatf(buf, buf_size, "%s)", detail);
1258 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1260 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1262 enc->width, enc->height);
1264 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1265 (enc->width != enc->coded_width ||
1266 enc->height != enc->coded_height))
1267 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1268 " (%dx%d)", enc->coded_width, enc->coded_height);
1270 if (enc->sample_aspect_ratio.num) {
1271 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1272 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1273 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1275 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1276 " [SAR %d:%d DAR %d:%d]",
1277 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1278 display_aspect_ratio.num, display_aspect_ratio.den);
1280 if (av_log_get_level() >= AV_LOG_DEBUG) {
1281 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1282 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1284 enc->time_base.num / g, enc->time_base.den / g);
1288 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1289 ", q=%d-%d", enc->qmin, enc->qmax);
1291 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1292 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1293 ", Closed Captions");
1294 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1295 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1299 case AVMEDIA_TYPE_AUDIO:
1300 av_strlcat(buf, separator, buf_size);
1302 if (enc->sample_rate) {
1303 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1304 "%d Hz, ", enc->sample_rate);
1306 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1307 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1308 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1309 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1311 if ( enc->bits_per_raw_sample > 0
1312 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1313 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1314 " (%d bit)", enc->bits_per_raw_sample);
1315 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1316 if (enc->initial_padding)
1317 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1318 ", delay %d", enc->initial_padding);
1319 if (enc->trailing_padding)
1320 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1321 ", padding %d", enc->trailing_padding);
1324 case AVMEDIA_TYPE_DATA:
1325 if (av_log_get_level() >= AV_LOG_DEBUG) {
1326 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1328 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1330 enc->time_base.num / g, enc->time_base.den / g);
1333 case AVMEDIA_TYPE_SUBTITLE:
1335 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1336 ", %dx%d", enc->width, enc->height);
1342 if (enc->flags & AV_CODEC_FLAG_PASS1)
1343 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1345 if (enc->flags & AV_CODEC_FLAG_PASS2)
1346 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1349 bitrate = get_bit_rate(enc);
1351 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1352 ", %"PRId64" kb/s", bitrate / 1000);
1353 } else if (enc->rc_max_rate > 0) {
1354 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1355 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1359 const char *av_get_profile_name(const AVCodec *codec, int profile)
1362 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1365 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1366 if (p->profile == profile)
1372 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1374 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1377 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1380 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1381 if (p->profile == profile)
1387 unsigned avcodec_version(void)
1389 // av_assert0(AV_CODEC_ID_V410==164);
1390 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1391 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1392 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
1393 av_assert0(AV_CODEC_ID_SRT==94216);
1394 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1396 return LIBAVCODEC_VERSION_INT;
1399 const char *avcodec_configuration(void)
1401 return FFMPEG_CONFIGURATION;
1404 const char *avcodec_license(void)
1406 #define LICENSE_PREFIX "libavcodec license: "
1407 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1410 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1413 case AV_CODEC_ID_8SVX_EXP:
1414 case AV_CODEC_ID_8SVX_FIB:
1415 case AV_CODEC_ID_ADPCM_CT:
1416 case AV_CODEC_ID_ADPCM_IMA_APC:
1417 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1418 case AV_CODEC_ID_ADPCM_IMA_OKI:
1419 case AV_CODEC_ID_ADPCM_IMA_WS:
1420 case AV_CODEC_ID_ADPCM_G722:
1421 case AV_CODEC_ID_ADPCM_YAMAHA:
1422 case AV_CODEC_ID_ADPCM_AICA:
1424 case AV_CODEC_ID_DSD_LSBF:
1425 case AV_CODEC_ID_DSD_MSBF:
1426 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1427 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1428 case AV_CODEC_ID_PCM_ALAW:
1429 case AV_CODEC_ID_PCM_MULAW:
1430 case AV_CODEC_ID_PCM_S8:
1431 case AV_CODEC_ID_PCM_S8_PLANAR:
1432 case AV_CODEC_ID_PCM_U8:
1433 case AV_CODEC_ID_PCM_ZORK:
1434 case AV_CODEC_ID_SDX2_DPCM:
1436 case AV_CODEC_ID_PCM_S16BE:
1437 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1438 case AV_CODEC_ID_PCM_S16LE:
1439 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1440 case AV_CODEC_ID_PCM_U16BE:
1441 case AV_CODEC_ID_PCM_U16LE:
1443 case AV_CODEC_ID_PCM_S24DAUD:
1444 case AV_CODEC_ID_PCM_S24BE:
1445 case AV_CODEC_ID_PCM_S24LE:
1446 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1447 case AV_CODEC_ID_PCM_U24BE:
1448 case AV_CODEC_ID_PCM_U24LE:
1450 case AV_CODEC_ID_PCM_S32BE:
1451 case AV_CODEC_ID_PCM_S32LE:
1452 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1453 case AV_CODEC_ID_PCM_U32BE:
1454 case AV_CODEC_ID_PCM_U32LE:
1455 case AV_CODEC_ID_PCM_F32BE:
1456 case AV_CODEC_ID_PCM_F32LE:
1457 case AV_CODEC_ID_PCM_F24LE:
1458 case AV_CODEC_ID_PCM_F16LE:
1460 case AV_CODEC_ID_PCM_F64BE:
1461 case AV_CODEC_ID_PCM_F64LE:
1462 case AV_CODEC_ID_PCM_S64BE:
1463 case AV_CODEC_ID_PCM_S64LE:
1470 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1472 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1473 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1474 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1475 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1476 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1477 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1478 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1479 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1480 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1481 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1482 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1483 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1485 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1486 return AV_CODEC_ID_NONE;
1487 if (be < 0 || be > 1)
1489 return map[fmt][be];
1492 int av_get_bits_per_sample(enum AVCodecID codec_id)
1495 case AV_CODEC_ID_ADPCM_SBPRO_2:
1497 case AV_CODEC_ID_ADPCM_SBPRO_3:
1499 case AV_CODEC_ID_ADPCM_SBPRO_4:
1500 case AV_CODEC_ID_ADPCM_IMA_WAV:
1501 case AV_CODEC_ID_ADPCM_IMA_QT:
1502 case AV_CODEC_ID_ADPCM_SWF:
1503 case AV_CODEC_ID_ADPCM_MS:
1506 return av_get_exact_bits_per_sample(codec_id);
1510 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1511 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1512 uint8_t * extradata, int frame_size, int frame_bytes)
1514 int bps = av_get_exact_bits_per_sample(id);
1515 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1517 /* codecs with an exact constant bits per sample */
1518 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1519 return (frame_bytes * 8LL) / (bps * ch);
1520 bps = bits_per_coded_sample;
1522 /* codecs with a fixed packet duration */
1524 case AV_CODEC_ID_ADPCM_ADX: return 32;
1525 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1526 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1527 case AV_CODEC_ID_AMR_NB:
1528 case AV_CODEC_ID_EVRC:
1529 case AV_CODEC_ID_GSM:
1530 case AV_CODEC_ID_QCELP:
1531 case AV_CODEC_ID_RA_288: return 160;
1532 case AV_CODEC_ID_AMR_WB:
1533 case AV_CODEC_ID_GSM_MS: return 320;
1534 case AV_CODEC_ID_MP1: return 384;
1535 case AV_CODEC_ID_ATRAC1: return 512;
1536 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1537 case AV_CODEC_ID_ATRAC3P: return 2048;
1538 case AV_CODEC_ID_MP2:
1539 case AV_CODEC_ID_MUSEPACK7: return 1152;
1540 case AV_CODEC_ID_AC3: return 1536;
1544 /* calc from sample rate */
1545 if (id == AV_CODEC_ID_TTA)
1546 return 256 * sr / 245;
1547 else if (id == AV_CODEC_ID_DST)
1548 return 588 * sr / 44100;
1551 /* calc from sample rate and channels */
1552 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1553 return (480 << (sr / 22050)) / ch;
1556 if (id == AV_CODEC_ID_MP3)
1557 return sr <= 24000 ? 576 : 1152;
1561 /* calc from block_align */
1562 if (id == AV_CODEC_ID_SIPR) {
1564 case 20: return 160;
1565 case 19: return 144;
1566 case 29: return 288;
1567 case 37: return 480;
1569 } else if (id == AV_CODEC_ID_ILBC) {
1571 case 38: return 160;
1572 case 50: return 240;
1577 if (frame_bytes > 0) {
1578 /* calc from frame_bytes only */
1579 if (id == AV_CODEC_ID_TRUESPEECH)
1580 return 240 * (frame_bytes / 32);
1581 if (id == AV_CODEC_ID_NELLYMOSER)
1582 return 256 * (frame_bytes / 64);
1583 if (id == AV_CODEC_ID_RA_144)
1584 return 160 * (frame_bytes / 20);
1585 if (id == AV_CODEC_ID_G723_1)
1586 return 240 * (frame_bytes / 24);
1589 /* calc from frame_bytes and bits_per_coded_sample */
1590 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1591 return frame_bytes * 8 / bps;
1594 if (ch > 0 && ch < INT_MAX/16) {
1595 /* calc from frame_bytes and channels */
1597 case AV_CODEC_ID_ADPCM_AFC:
1598 return frame_bytes / (9 * ch) * 16;
1599 case AV_CODEC_ID_ADPCM_PSX:
1600 case AV_CODEC_ID_ADPCM_DTK:
1601 return frame_bytes / (16 * ch) * 28;
1602 case AV_CODEC_ID_ADPCM_4XM:
1603 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1604 case AV_CODEC_ID_ADPCM_IMA_ISS:
1605 return (frame_bytes - 4 * ch) * 2 / ch;
1606 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1607 return (frame_bytes - 4) * 2 / ch;
1608 case AV_CODEC_ID_ADPCM_IMA_AMV:
1609 return (frame_bytes - 8) * 2 / ch;
1610 case AV_CODEC_ID_ADPCM_THP:
1611 case AV_CODEC_ID_ADPCM_THP_LE:
1613 return frame_bytes * 14 / (8 * ch);
1615 case AV_CODEC_ID_ADPCM_XA:
1616 return (frame_bytes / 128) * 224 / ch;
1617 case AV_CODEC_ID_INTERPLAY_DPCM:
1618 return (frame_bytes - 6 - ch) / ch;
1619 case AV_CODEC_ID_ROQ_DPCM:
1620 return (frame_bytes - 8) / ch;
1621 case AV_CODEC_ID_XAN_DPCM:
1622 return (frame_bytes - 2 * ch) / ch;
1623 case AV_CODEC_ID_MACE3:
1624 return 3 * frame_bytes / ch;
1625 case AV_CODEC_ID_MACE6:
1626 return 6 * frame_bytes / ch;
1627 case AV_CODEC_ID_PCM_LXF:
1628 return 2 * (frame_bytes / (5 * ch));
1629 case AV_CODEC_ID_IAC:
1630 case AV_CODEC_ID_IMC:
1631 return 4 * frame_bytes / ch;
1635 /* calc from frame_bytes, channels, and codec_tag */
1636 if (id == AV_CODEC_ID_SOL_DPCM) {
1638 return frame_bytes / ch;
1640 return frame_bytes * 2 / ch;
1645 /* calc from frame_bytes, channels, and block_align */
1646 int blocks = frame_bytes / ba;
1648 case AV_CODEC_ID_ADPCM_IMA_WAV:
1649 if (bps < 2 || bps > 5)
1651 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1652 case AV_CODEC_ID_ADPCM_IMA_DK3:
1653 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1654 case AV_CODEC_ID_ADPCM_IMA_DK4:
1655 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1656 case AV_CODEC_ID_ADPCM_IMA_RAD:
1657 return blocks * ((ba - 4 * ch) * 2 / ch);
1658 case AV_CODEC_ID_ADPCM_MS:
1659 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1660 case AV_CODEC_ID_ADPCM_MTAF:
1661 return blocks * (ba - 16) * 2 / ch;
1666 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1668 case AV_CODEC_ID_PCM_DVD:
1669 if(bps<4 || frame_bytes<3)
1671 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1672 case AV_CODEC_ID_PCM_BLURAY:
1673 if(bps<4 || frame_bytes<4)
1675 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1676 case AV_CODEC_ID_S302M:
1677 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1683 /* Fall back on using frame_size */
1684 if (frame_size > 1 && frame_bytes)
1687 //For WMA we currently have no other means to calculate duration thus we
1688 //do it here by assuming CBR, which is true for all known cases.
1689 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1690 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1691 return (frame_bytes * 8LL * sr) / bitrate;
1697 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1699 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1700 avctx->channels, avctx->block_align,
1701 avctx->codec_tag, avctx->bits_per_coded_sample,
1702 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1706 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1708 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1709 par->channels, par->block_align,
1710 par->codec_tag, par->bits_per_coded_sample,
1711 par->bit_rate, par->extradata, par->frame_size,
1716 int ff_thread_init(AVCodecContext *s)
1723 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1737 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1740 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1744 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1747 if (!codec->hw_configs || index < 0)
1749 for (i = 0; i <= index; i++)
1750 if (!codec->hw_configs[i])
1752 return &codec->hw_configs[index]->public;
1755 #if FF_API_USER_VISIBLE_AVHWACCEL
1756 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1761 void av_register_hwaccel(AVHWAccel *hwaccel)
1767 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1773 unsigned int avpriv_toupper4(unsigned int x)
1775 return av_toupper(x & 0xFF) +
1776 (av_toupper((x >> 8) & 0xFF) << 8) +
1777 (av_toupper((x >> 16) & 0xFF) << 16) +
1778 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1781 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
1785 dst->owner[0] = src->owner[0];
1786 dst->owner[1] = src->owner[1];
1788 ret = av_frame_ref(dst->f, src->f);
1792 av_assert0(!dst->progress);
1794 if (src->progress &&
1795 !(dst->progress = av_buffer_ref(src->progress))) {
1796 ff_thread_release_buffer(dst->owner[0], dst);
1797 return AVERROR(ENOMEM);
1805 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1807 return ff_get_format(avctx, fmt);
1810 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1812 f->owner[0] = f->owner[1] = avctx;
1813 return ff_get_buffer(avctx, f->f, flags);
1816 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1819 av_frame_unref(f->f);
1822 void ff_thread_finish_setup(AVCodecContext *avctx)
1826 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1830 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1834 int ff_thread_can_start_frame(AVCodecContext *avctx)
1839 int ff_alloc_entries(AVCodecContext *avctx, int count)
1844 void ff_reset_entries(AVCodecContext *avctx)
1848 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1852 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1858 int avcodec_is_open(AVCodecContext *s)
1860 return !!s->internal;
1863 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1868 ret = av_bprint_finalize(buf, &str);
1871 if (!av_bprint_is_complete(buf)) {
1873 return AVERROR(ENOMEM);
1876 avctx->extradata = str;
1877 /* Note: the string is NUL terminated (so extradata can be read as a
1878 * string), but the ending character is not accounted in the size (in
1879 * binary formats you are likely not supposed to mux that character). When
1880 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1882 avctx->extradata_size = buf->len;
1886 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1888 uint32_t *av_restrict state)
1892 av_assert0(p <= end);
1896 for (i = 0; i < 3; i++) {
1897 uint32_t tmp = *state << 8;
1898 *state = tmp + *(p++);
1899 if (tmp == 0x100 || p == end)
1904 if (p[-1] > 1 ) p += 3;
1905 else if (p[-2] ) p += 2;
1906 else if (p[-3]|(p[-1]-1)) p++;
1913 p = FFMIN(p, end) - 4;
1914 *state = AV_RB32(p);
1919 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
1921 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1926 *size = sizeof(*props);
1928 props->vbv_delay = UINT64_MAX;
1933 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
1935 AVPacketSideData *tmp;
1936 AVCPBProperties *props;
1939 props = av_cpb_properties_alloc(&size);
1943 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1949 avctx->coded_side_data = tmp;
1950 avctx->nb_coded_side_data++;
1952 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
1953 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1954 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1959 static void codec_parameters_reset(AVCodecParameters *par)
1961 av_freep(&par->extradata);
1963 memset(par, 0, sizeof(*par));
1965 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
1966 par->codec_id = AV_CODEC_ID_NONE;
1968 par->field_order = AV_FIELD_UNKNOWN;
1969 par->color_range = AVCOL_RANGE_UNSPECIFIED;
1970 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
1971 par->color_trc = AVCOL_TRC_UNSPECIFIED;
1972 par->color_space = AVCOL_SPC_UNSPECIFIED;
1973 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
1974 par->sample_aspect_ratio = (AVRational){ 0, 1 };
1975 par->profile = FF_PROFILE_UNKNOWN;
1976 par->level = FF_LEVEL_UNKNOWN;
1979 AVCodecParameters *avcodec_parameters_alloc(void)
1981 AVCodecParameters *par = av_mallocz(sizeof(*par));
1985 codec_parameters_reset(par);
1989 void avcodec_parameters_free(AVCodecParameters **ppar)
1991 AVCodecParameters *par = *ppar;
1995 codec_parameters_reset(par);
2000 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2002 codec_parameters_reset(dst);
2003 memcpy(dst, src, sizeof(*dst));
2005 dst->extradata = NULL;
2006 dst->extradata_size = 0;
2007 if (src->extradata) {
2008 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2009 if (!dst->extradata)
2010 return AVERROR(ENOMEM);
2011 memcpy(dst->extradata, src->extradata, src->extradata_size);
2012 dst->extradata_size = src->extradata_size;
2018 int avcodec_parameters_from_context(AVCodecParameters *par,
2019 const AVCodecContext *codec)
2021 codec_parameters_reset(par);
2023 par->codec_type = codec->codec_type;
2024 par->codec_id = codec->codec_id;
2025 par->codec_tag = codec->codec_tag;
2027 par->bit_rate = codec->bit_rate;
2028 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2029 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2030 par->profile = codec->profile;
2031 par->level = codec->level;
2033 switch (par->codec_type) {
2034 case AVMEDIA_TYPE_VIDEO:
2035 par->format = codec->pix_fmt;
2036 par->width = codec->width;
2037 par->height = codec->height;
2038 par->field_order = codec->field_order;
2039 par->color_range = codec->color_range;
2040 par->color_primaries = codec->color_primaries;
2041 par->color_trc = codec->color_trc;
2042 par->color_space = codec->colorspace;
2043 par->chroma_location = codec->chroma_sample_location;
2044 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2045 par->video_delay = codec->has_b_frames;
2047 case AVMEDIA_TYPE_AUDIO:
2048 par->format = codec->sample_fmt;
2049 par->channel_layout = codec->channel_layout;
2050 par->channels = codec->channels;
2051 par->sample_rate = codec->sample_rate;
2052 par->block_align = codec->block_align;
2053 par->frame_size = codec->frame_size;
2054 par->initial_padding = codec->initial_padding;
2055 par->trailing_padding = codec->trailing_padding;
2056 par->seek_preroll = codec->seek_preroll;
2058 case AVMEDIA_TYPE_SUBTITLE:
2059 par->width = codec->width;
2060 par->height = codec->height;
2064 if (codec->extradata) {
2065 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2066 if (!par->extradata)
2067 return AVERROR(ENOMEM);
2068 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2069 par->extradata_size = codec->extradata_size;
2075 int avcodec_parameters_to_context(AVCodecContext *codec,
2076 const AVCodecParameters *par)
2078 codec->codec_type = par->codec_type;
2079 codec->codec_id = par->codec_id;
2080 codec->codec_tag = par->codec_tag;
2082 codec->bit_rate = par->bit_rate;
2083 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2084 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2085 codec->profile = par->profile;
2086 codec->level = par->level;
2088 switch (par->codec_type) {
2089 case AVMEDIA_TYPE_VIDEO:
2090 codec->pix_fmt = par->format;
2091 codec->width = par->width;
2092 codec->height = par->height;
2093 codec->field_order = par->field_order;
2094 codec->color_range = par->color_range;
2095 codec->color_primaries = par->color_primaries;
2096 codec->color_trc = par->color_trc;
2097 codec->colorspace = par->color_space;
2098 codec->chroma_sample_location = par->chroma_location;
2099 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2100 codec->has_b_frames = par->video_delay;
2102 case AVMEDIA_TYPE_AUDIO:
2103 codec->sample_fmt = par->format;
2104 codec->channel_layout = par->channel_layout;
2105 codec->channels = par->channels;
2106 codec->sample_rate = par->sample_rate;
2107 codec->block_align = par->block_align;
2108 codec->frame_size = par->frame_size;
2110 codec->initial_padding = par->initial_padding;
2111 codec->trailing_padding = par->trailing_padding;
2112 codec->seek_preroll = par->seek_preroll;
2114 case AVMEDIA_TYPE_SUBTITLE:
2115 codec->width = par->width;
2116 codec->height = par->height;
2120 if (par->extradata) {
2121 av_freep(&codec->extradata);
2122 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2123 if (!codec->extradata)
2124 return AVERROR(ENOMEM);
2125 memcpy(codec->extradata, par->extradata, par->extradata_size);
2126 codec->extradata_size = par->extradata_size;
2132 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2133 void **data, size_t *sei_size)
2135 AVFrameSideData *side_data = NULL;
2139 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2146 *sei_size = side_data->size + 11;
2147 *data = av_mallocz(*sei_size + prefix_len);
2149 return AVERROR(ENOMEM);
2150 sei_data = (uint8_t*)*data + prefix_len;
2158 * 'GA94' is standard in North America for ATSC, but hard coding
2159 * this style may not be the right thing to do -- other formats
2160 * do exist. This information is not available in the side_data
2161 * so we are going with this right now.
2163 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2165 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2168 memcpy(sei_data + 10, side_data->data, side_data->size);
2170 sei_data[side_data->size+10] = 255;
2175 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2177 AVRational framerate = avctx->framerate;
2178 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2181 if (!(framerate.num && framerate.den))
2182 framerate = av_inv_q(avctx->time_base);
2183 if (!(framerate.num && framerate.den))
2186 if (!bits_per_coded_sample) {
2187 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2188 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2190 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2191 framerate.num / framerate.den;