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 s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
317 s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
319 // some of the optimized chroma MC reads one line too much
320 // which is also done in mpeg decoders with lowres > 0
323 // H.264 uses edge emulation for out of frame motion vectors, for this
324 // it requires a temporary area large enough to hold a 21x21 block,
325 // increasing witdth ensure that the temporary area is large enough,
326 // the next rounded up width is 32
327 *width = FFMAX(*width, 32);
330 for (i = 0; i < 4; i++)
331 linesize_align[i] = STRIDE_ALIGN;
334 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
336 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
337 int chroma_shift = desc->log2_chroma_w;
338 int linesize_align[AV_NUM_DATA_POINTERS];
341 avcodec_align_dimensions2(s, width, height, linesize_align);
342 align = FFMAX(linesize_align[0], linesize_align[3]);
343 linesize_align[1] <<= chroma_shift;
344 linesize_align[2] <<= chroma_shift;
345 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
346 *width = FFALIGN(*width, align);
349 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
351 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
352 return AVERROR(EINVAL);
355 *xpos = (pos&1) * 128;
356 *ypos = ((pos>>1)^(pos<4)) * 128;
361 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
365 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
366 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
369 return AVCHROMA_LOC_UNSPECIFIED;
372 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
373 enum AVSampleFormat sample_fmt, const uint8_t *buf,
374 int buf_size, int align)
376 int ch, planar, needed_size, ret = 0;
378 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
379 frame->nb_samples, sample_fmt,
381 if (buf_size < needed_size)
382 return AVERROR(EINVAL);
384 planar = av_sample_fmt_is_planar(sample_fmt);
385 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
386 if (!(frame->extended_data = av_mallocz_array(nb_channels,
387 sizeof(*frame->extended_data))))
388 return AVERROR(ENOMEM);
390 frame->extended_data = frame->data;
393 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
394 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
395 sample_fmt, align)) < 0) {
396 if (frame->extended_data != frame->data)
397 av_freep(&frame->extended_data);
400 if (frame->extended_data != frame->data) {
401 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
402 frame->data[ch] = frame->extended_data[ch];
408 void ff_color_frame(AVFrame *frame, const int c[4])
410 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
413 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
415 for (p = 0; p<desc->nb_components; p++) {
416 uint8_t *dst = frame->data[p];
417 int is_chroma = p == 1 || p == 2;
418 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
419 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
420 for (y = 0; y < height; y++) {
421 if (desc->comp[0].depth >= 9) {
422 for (x = 0; x<bytes; x++)
423 ((uint16_t*)dst)[x] = c[p];
425 memset(dst, c[p], bytes);
426 dst += frame->linesize[p];
431 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
435 for (i = 0; i < count; i++) {
436 int r = func(c, (char *)arg + i * size);
444 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
448 for (i = 0; i < count; i++) {
449 int r = func(c, arg, i, 0);
457 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
460 while (tags->pix_fmt >= 0) {
461 if (tags->fourcc == fourcc)
462 return tags->pix_fmt;
465 return AV_PIX_FMT_NONE;
468 #if FF_API_CODEC_GET_SET
469 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
470 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
471 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
472 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
473 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
475 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
477 return codec->properties;
480 int av_codec_get_max_lowres(const AVCodec *codec)
482 return codec->max_lowres;
486 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
487 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
490 static int64_t get_bit_rate(AVCodecContext *ctx)
495 switch (ctx->codec_type) {
496 case AVMEDIA_TYPE_VIDEO:
497 case AVMEDIA_TYPE_DATA:
498 case AVMEDIA_TYPE_SUBTITLE:
499 case AVMEDIA_TYPE_ATTACHMENT:
500 bit_rate = ctx->bit_rate;
502 case AVMEDIA_TYPE_AUDIO:
503 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
504 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
514 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
516 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
517 ff_mutex_lock(&codec_mutex);
520 static void ff_unlock_avcodec(const AVCodec *codec)
522 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
523 ff_mutex_unlock(&codec_mutex);
526 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
530 ff_unlock_avcodec(codec);
532 ret = avcodec_open2(avctx, codec, options);
534 ff_lock_avcodec(avctx, codec);
538 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
541 AVDictionary *tmp = NULL;
542 const AVPixFmtDescriptor *pixdesc;
544 if (avcodec_is_open(avctx))
547 if ((!codec && !avctx->codec)) {
548 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
549 return AVERROR(EINVAL);
551 if ((codec && avctx->codec && codec != avctx->codec)) {
552 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
553 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
554 return AVERROR(EINVAL);
557 codec = avctx->codec;
559 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
560 return AVERROR(EINVAL);
563 av_dict_copy(&tmp, *options, 0);
565 ff_lock_avcodec(avctx, codec);
567 avctx->internal = av_mallocz(sizeof(*avctx->internal));
568 if (!avctx->internal) {
569 ret = AVERROR(ENOMEM);
573 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
574 if (!avctx->internal->pool) {
575 ret = AVERROR(ENOMEM);
579 avctx->internal->to_free = av_frame_alloc();
580 if (!avctx->internal->to_free) {
581 ret = AVERROR(ENOMEM);
585 avctx->internal->compat_decode_frame = av_frame_alloc();
586 if (!avctx->internal->compat_decode_frame) {
587 ret = AVERROR(ENOMEM);
591 avctx->internal->buffer_frame = av_frame_alloc();
592 if (!avctx->internal->buffer_frame) {
593 ret = AVERROR(ENOMEM);
597 avctx->internal->buffer_pkt = av_packet_alloc();
598 if (!avctx->internal->buffer_pkt) {
599 ret = AVERROR(ENOMEM);
603 avctx->internal->ds.in_pkt = av_packet_alloc();
604 if (!avctx->internal->ds.in_pkt) {
605 ret = AVERROR(ENOMEM);
609 avctx->internal->last_pkt_props = av_packet_alloc();
610 if (!avctx->internal->last_pkt_props) {
611 ret = AVERROR(ENOMEM);
615 avctx->internal->skip_samples_multiplier = 1;
617 if (codec->priv_data_size > 0) {
618 if (!avctx->priv_data) {
619 avctx->priv_data = av_mallocz(codec->priv_data_size);
620 if (!avctx->priv_data) {
621 ret = AVERROR(ENOMEM);
624 if (codec->priv_class) {
625 *(const AVClass **)avctx->priv_data = codec->priv_class;
626 av_opt_set_defaults(avctx->priv_data);
629 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
632 avctx->priv_data = NULL;
634 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
637 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
638 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
639 ret = AVERROR(EINVAL);
643 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
644 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
645 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
646 if (avctx->coded_width && avctx->coded_height)
647 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
648 else if (avctx->width && avctx->height)
649 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
654 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
655 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
656 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
657 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
658 ff_set_dimensions(avctx, 0, 0);
661 if (avctx->width > 0 && avctx->height > 0) {
662 if (av_image_check_sar(avctx->width, avctx->height,
663 avctx->sample_aspect_ratio) < 0) {
664 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
665 avctx->sample_aspect_ratio.num,
666 avctx->sample_aspect_ratio.den);
667 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
671 /* if the decoder init function was already called previously,
672 * free the already allocated subtitle_header before overwriting it */
673 if (av_codec_is_decoder(codec))
674 av_freep(&avctx->subtitle_header);
676 if (avctx->channels > FF_SANE_NB_CHANNELS) {
677 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d\n", avctx->channels);
678 ret = AVERROR(EINVAL);
682 avctx->codec = codec;
683 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
684 avctx->codec_id == AV_CODEC_ID_NONE) {
685 avctx->codec_type = codec->type;
686 avctx->codec_id = codec->id;
688 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
689 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
690 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
691 ret = AVERROR(EINVAL);
694 avctx->frame_number = 0;
695 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
697 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
698 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
699 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
701 av_log(avctx, AV_LOG_ERROR,
702 "The %s '%s' is experimental but experimental codecs are not enabled, "
703 "add '-strict %d' if you want to use it.\n",
704 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
705 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
706 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
707 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
708 codec_string, codec2->name);
709 ret = AVERROR_EXPERIMENTAL;
713 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
714 (!avctx->time_base.num || !avctx->time_base.den)) {
715 avctx->time_base.num = 1;
716 avctx->time_base.den = avctx->sample_rate;
720 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
722 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
723 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
724 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
725 ff_lock_avcodec(avctx, codec);
730 if (av_codec_is_decoder(avctx->codec)) {
731 ret = ff_decode_bsfs_init(avctx);
737 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
738 ret = ff_thread_init(avctx);
743 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
744 avctx->thread_count = 1;
746 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
747 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
748 avctx->codec->max_lowres);
749 avctx->lowres = avctx->codec->max_lowres;
752 if (av_codec_is_encoder(avctx->codec)) {
754 #if FF_API_CODED_FRAME
755 FF_DISABLE_DEPRECATION_WARNINGS
756 avctx->coded_frame = av_frame_alloc();
757 if (!avctx->coded_frame) {
758 ret = AVERROR(ENOMEM);
761 FF_ENABLE_DEPRECATION_WARNINGS
764 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
765 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
766 ret = AVERROR(EINVAL);
770 if (avctx->codec->sample_fmts) {
771 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
772 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
774 if (avctx->channels == 1 &&
775 av_get_planar_sample_fmt(avctx->sample_fmt) ==
776 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
777 avctx->sample_fmt = avctx->codec->sample_fmts[i];
781 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
783 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
784 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
785 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
786 ret = AVERROR(EINVAL);
790 if (avctx->codec->pix_fmts) {
791 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
792 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
794 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
795 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
796 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
798 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
799 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
800 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
801 ret = AVERROR(EINVAL);
804 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
805 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
806 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
807 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
808 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
809 avctx->color_range = AVCOL_RANGE_JPEG;
811 if (avctx->codec->supported_samplerates) {
812 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
813 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
815 if (avctx->codec->supported_samplerates[i] == 0) {
816 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
818 ret = AVERROR(EINVAL);
822 if (avctx->sample_rate < 0) {
823 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
825 ret = AVERROR(EINVAL);
828 if (avctx->codec->channel_layouts) {
829 if (!avctx->channel_layout) {
830 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
832 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
833 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
835 if (avctx->codec->channel_layouts[i] == 0) {
837 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
838 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
839 ret = AVERROR(EINVAL);
844 if (avctx->channel_layout && avctx->channels) {
845 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
846 if (channels != avctx->channels) {
848 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
849 av_log(avctx, AV_LOG_ERROR,
850 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
851 buf, channels, avctx->channels);
852 ret = AVERROR(EINVAL);
855 } else if (avctx->channel_layout) {
856 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
858 if (avctx->channels < 0) {
859 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
861 ret = AVERROR(EINVAL);
864 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
865 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
866 if ( avctx->bits_per_raw_sample < 0
867 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
868 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
869 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
870 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
872 if (avctx->width <= 0 || avctx->height <= 0) {
873 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
874 ret = AVERROR(EINVAL);
878 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
879 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
880 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
883 if (!avctx->rc_initial_buffer_occupancy)
884 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
886 if (avctx->ticks_per_frame && avctx->time_base.num &&
887 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
888 av_log(avctx, AV_LOG_ERROR,
889 "ticks_per_frame %d too large for the timebase %d/%d.",
890 avctx->ticks_per_frame,
891 avctx->time_base.num,
892 avctx->time_base.den);
896 if (avctx->hw_frames_ctx) {
897 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
898 if (frames_ctx->format != avctx->pix_fmt) {
899 av_log(avctx, AV_LOG_ERROR,
900 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
901 ret = AVERROR(EINVAL);
904 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
905 avctx->sw_pix_fmt != frames_ctx->sw_format) {
906 av_log(avctx, AV_LOG_ERROR,
907 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
908 "and AVHWFramesContext.sw_format (%s)\n",
909 av_get_pix_fmt_name(avctx->sw_pix_fmt),
910 av_get_pix_fmt_name(frames_ctx->sw_format));
911 ret = AVERROR(EINVAL);
914 avctx->sw_pix_fmt = frames_ctx->sw_format;
918 avctx->pts_correction_num_faulty_pts =
919 avctx->pts_correction_num_faulty_dts = 0;
920 avctx->pts_correction_last_pts =
921 avctx->pts_correction_last_dts = INT64_MIN;
923 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
924 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
925 av_log(avctx, AV_LOG_WARNING,
926 "gray decoding requested but not enabled at configuration time\n");
928 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
929 || avctx->internal->frame_thread_encoder)) {
930 ret = avctx->codec->init(avctx);
938 if (av_codec_is_decoder(avctx->codec)) {
939 if (!avctx->bit_rate)
940 avctx->bit_rate = get_bit_rate(avctx);
941 /* validate channel layout from the decoder */
942 if (avctx->channel_layout) {
943 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
944 if (!avctx->channels)
945 avctx->channels = channels;
946 else if (channels != avctx->channels) {
948 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
949 av_log(avctx, AV_LOG_WARNING,
950 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
951 "ignoring specified channel layout\n",
952 buf, channels, avctx->channels);
953 avctx->channel_layout = 0;
956 if (avctx->channels && avctx->channels < 0 ||
957 avctx->channels > FF_SANE_NB_CHANNELS) {
958 ret = AVERROR(EINVAL);
961 if (avctx->sub_charenc) {
962 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
963 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
964 "supported with subtitles codecs\n");
965 ret = AVERROR(EINVAL);
967 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
968 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
969 "subtitles character encoding will be ignored\n",
970 avctx->codec_descriptor->name);
971 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
973 /* input character encoding is set for a text based subtitle
974 * codec at this point */
975 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
976 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
978 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
980 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
981 if (cd == (iconv_t)-1) {
982 ret = AVERROR(errno);
983 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
984 "with input character encoding \"%s\"\n", avctx->sub_charenc);
989 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
990 "conversion needs a libavcodec built with iconv support "
992 ret = AVERROR(ENOSYS);
999 #if FF_API_AVCTX_TIMEBASE
1000 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1001 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1004 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1005 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1009 ff_unlock_avcodec(codec);
1011 av_dict_free(options);
1018 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1019 avctx->codec->close(avctx);
1021 if (codec->priv_class && codec->priv_data_size)
1022 av_opt_free(avctx->priv_data);
1025 #if FF_API_CODED_FRAME
1026 FF_DISABLE_DEPRECATION_WARNINGS
1027 av_frame_free(&avctx->coded_frame);
1028 FF_ENABLE_DEPRECATION_WARNINGS
1032 av_freep(&avctx->priv_data);
1033 if (avctx->internal) {
1034 av_frame_free(&avctx->internal->to_free);
1035 av_frame_free(&avctx->internal->compat_decode_frame);
1036 av_frame_free(&avctx->internal->buffer_frame);
1037 av_packet_free(&avctx->internal->buffer_pkt);
1038 av_packet_free(&avctx->internal->last_pkt_props);
1040 av_packet_free(&avctx->internal->ds.in_pkt);
1041 ff_decode_bsfs_uninit(avctx);
1043 av_freep(&avctx->internal->pool);
1045 av_freep(&avctx->internal);
1046 avctx->codec = NULL;
1050 void avsubtitle_free(AVSubtitle *sub)
1054 for (i = 0; i < sub->num_rects; i++) {
1055 av_freep(&sub->rects[i]->data[0]);
1056 av_freep(&sub->rects[i]->data[1]);
1057 av_freep(&sub->rects[i]->data[2]);
1058 av_freep(&sub->rects[i]->data[3]);
1059 av_freep(&sub->rects[i]->text);
1060 av_freep(&sub->rects[i]->ass);
1061 av_freep(&sub->rects[i]);
1064 av_freep(&sub->rects);
1066 memset(sub, 0, sizeof(*sub));
1069 av_cold int avcodec_close(AVCodecContext *avctx)
1076 if (avcodec_is_open(avctx)) {
1077 FramePool *pool = avctx->internal->pool;
1078 if (CONFIG_FRAME_THREAD_ENCODER &&
1079 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1080 ff_frame_thread_encoder_free(avctx);
1082 if (HAVE_THREADS && avctx->internal->thread_ctx)
1083 ff_thread_free(avctx);
1084 if (avctx->codec && avctx->codec->close)
1085 avctx->codec->close(avctx);
1086 avctx->internal->byte_buffer_size = 0;
1087 av_freep(&avctx->internal->byte_buffer);
1088 av_frame_free(&avctx->internal->to_free);
1089 av_frame_free(&avctx->internal->compat_decode_frame);
1090 av_frame_free(&avctx->internal->buffer_frame);
1091 av_packet_free(&avctx->internal->buffer_pkt);
1092 av_packet_free(&avctx->internal->last_pkt_props);
1094 av_packet_free(&avctx->internal->ds.in_pkt);
1096 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1097 av_buffer_pool_uninit(&pool->pools[i]);
1098 av_freep(&avctx->internal->pool);
1100 if (avctx->hwaccel && avctx->hwaccel->uninit)
1101 avctx->hwaccel->uninit(avctx);
1102 av_freep(&avctx->internal->hwaccel_priv_data);
1104 ff_decode_bsfs_uninit(avctx);
1106 av_freep(&avctx->internal);
1109 for (i = 0; i < avctx->nb_coded_side_data; i++)
1110 av_freep(&avctx->coded_side_data[i].data);
1111 av_freep(&avctx->coded_side_data);
1112 avctx->nb_coded_side_data = 0;
1114 av_buffer_unref(&avctx->hw_frames_ctx);
1115 av_buffer_unref(&avctx->hw_device_ctx);
1117 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1118 av_opt_free(avctx->priv_data);
1120 av_freep(&avctx->priv_data);
1121 if (av_codec_is_encoder(avctx->codec)) {
1122 av_freep(&avctx->extradata);
1123 #if FF_API_CODED_FRAME
1124 FF_DISABLE_DEPRECATION_WARNINGS
1125 av_frame_free(&avctx->coded_frame);
1126 FF_ENABLE_DEPRECATION_WARNINGS
1129 avctx->codec = NULL;
1130 avctx->active_thread_type = 0;
1135 const char *avcodec_get_name(enum AVCodecID id)
1137 const AVCodecDescriptor *cd;
1140 if (id == AV_CODEC_ID_NONE)
1142 cd = avcodec_descriptor_get(id);
1145 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1146 codec = avcodec_find_decoder(id);
1149 codec = avcodec_find_encoder(id);
1152 return "unknown_codec";
1155 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1157 int i, len, ret = 0;
1159 #define TAG_PRINT(x) \
1160 (((x) >= '0' && (x) <= '9') || \
1161 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1162 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1164 for (i = 0; i < 4; i++) {
1165 len = snprintf(buf, buf_size,
1166 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1168 buf_size = buf_size > len ? buf_size - len : 0;
1175 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1177 const char *codec_type;
1178 const char *codec_name;
1179 const char *profile = NULL;
1182 AVRational display_aspect_ratio;
1183 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1185 if (!buf || buf_size <= 0)
1187 codec_type = av_get_media_type_string(enc->codec_type);
1188 codec_name = avcodec_get_name(enc->codec_id);
1189 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1191 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1193 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1195 if (enc->codec && strcmp(enc->codec->name, codec_name))
1196 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1199 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1200 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1201 && av_log_get_level() >= AV_LOG_VERBOSE
1203 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1204 ", %d reference frame%s",
1205 enc->refs, enc->refs > 1 ? "s" : "");
1208 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1209 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1211 switch (enc->codec_type) {
1212 case AVMEDIA_TYPE_VIDEO:
1214 char detail[256] = "(";
1216 av_strlcat(buf, separator, buf_size);
1218 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1219 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1220 av_get_pix_fmt_name(enc->pix_fmt));
1221 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1222 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1223 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1224 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1225 av_strlcatf(detail, sizeof(detail), "%s, ",
1226 av_color_range_name(enc->color_range));
1228 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1229 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1230 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1231 if (enc->colorspace != (int)enc->color_primaries ||
1232 enc->colorspace != (int)enc->color_trc) {
1234 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1235 av_color_space_name(enc->colorspace),
1236 av_color_primaries_name(enc->color_primaries),
1237 av_color_transfer_name(enc->color_trc));
1239 av_strlcatf(detail, sizeof(detail), "%s, ",
1240 av_get_colorspace_name(enc->colorspace));
1243 if (enc->field_order != AV_FIELD_UNKNOWN) {
1244 const char *field_order = "progressive";
1245 if (enc->field_order == AV_FIELD_TT)
1246 field_order = "top first";
1247 else if (enc->field_order == AV_FIELD_BB)
1248 field_order = "bottom first";
1249 else if (enc->field_order == AV_FIELD_TB)
1250 field_order = "top coded first (swapped)";
1251 else if (enc->field_order == AV_FIELD_BT)
1252 field_order = "bottom coded first (swapped)";
1254 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1257 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1258 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1259 av_strlcatf(detail, sizeof(detail), "%s, ",
1260 av_chroma_location_name(enc->chroma_sample_location));
1262 if (strlen(detail) > 1) {
1263 detail[strlen(detail) - 2] = 0;
1264 av_strlcatf(buf, buf_size, "%s)", detail);
1269 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1271 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1273 enc->width, enc->height);
1275 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1276 (enc->width != enc->coded_width ||
1277 enc->height != enc->coded_height))
1278 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1279 " (%dx%d)", enc->coded_width, enc->coded_height);
1281 if (enc->sample_aspect_ratio.num) {
1282 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1283 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1284 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1286 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1287 " [SAR %d:%d DAR %d:%d]",
1288 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1289 display_aspect_ratio.num, display_aspect_ratio.den);
1291 if (av_log_get_level() >= AV_LOG_DEBUG) {
1292 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1293 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1295 enc->time_base.num / g, enc->time_base.den / g);
1299 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1300 ", q=%d-%d", enc->qmin, enc->qmax);
1302 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1303 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1304 ", Closed Captions");
1305 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1306 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1310 case AVMEDIA_TYPE_AUDIO:
1311 av_strlcat(buf, separator, buf_size);
1313 if (enc->sample_rate) {
1314 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1315 "%d Hz, ", enc->sample_rate);
1317 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1318 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1319 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1320 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1322 if ( enc->bits_per_raw_sample > 0
1323 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1324 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1325 " (%d bit)", enc->bits_per_raw_sample);
1326 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1327 if (enc->initial_padding)
1328 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1329 ", delay %d", enc->initial_padding);
1330 if (enc->trailing_padding)
1331 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1332 ", padding %d", enc->trailing_padding);
1335 case AVMEDIA_TYPE_DATA:
1336 if (av_log_get_level() >= AV_LOG_DEBUG) {
1337 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1339 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1341 enc->time_base.num / g, enc->time_base.den / g);
1344 case AVMEDIA_TYPE_SUBTITLE:
1346 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1347 ", %dx%d", enc->width, enc->height);
1353 if (enc->flags & AV_CODEC_FLAG_PASS1)
1354 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1356 if (enc->flags & AV_CODEC_FLAG_PASS2)
1357 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360 bitrate = get_bit_rate(enc);
1362 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1363 ", %"PRId64" kb/s", bitrate / 1000);
1364 } else if (enc->rc_max_rate > 0) {
1365 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1366 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1370 const char *av_get_profile_name(const AVCodec *codec, int profile)
1373 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1376 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1377 if (p->profile == profile)
1383 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1385 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1388 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1391 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1392 if (p->profile == profile)
1398 unsigned avcodec_version(void)
1400 // av_assert0(AV_CODEC_ID_V410==164);
1401 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1402 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1403 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
1404 av_assert0(AV_CODEC_ID_SRT==94216);
1405 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1407 return LIBAVCODEC_VERSION_INT;
1410 const char *avcodec_configuration(void)
1412 return FFMPEG_CONFIGURATION;
1415 const char *avcodec_license(void)
1417 #define LICENSE_PREFIX "libavcodec license: "
1418 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1421 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1424 case AV_CODEC_ID_8SVX_EXP:
1425 case AV_CODEC_ID_8SVX_FIB:
1426 case AV_CODEC_ID_ADPCM_CT:
1427 case AV_CODEC_ID_ADPCM_IMA_APC:
1428 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1429 case AV_CODEC_ID_ADPCM_IMA_OKI:
1430 case AV_CODEC_ID_ADPCM_IMA_WS:
1431 case AV_CODEC_ID_ADPCM_G722:
1432 case AV_CODEC_ID_ADPCM_YAMAHA:
1433 case AV_CODEC_ID_ADPCM_AICA:
1435 case AV_CODEC_ID_DSD_LSBF:
1436 case AV_CODEC_ID_DSD_MSBF:
1437 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1438 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1439 case AV_CODEC_ID_PCM_ALAW:
1440 case AV_CODEC_ID_PCM_MULAW:
1441 case AV_CODEC_ID_PCM_VIDC:
1442 case AV_CODEC_ID_PCM_S8:
1443 case AV_CODEC_ID_PCM_S8_PLANAR:
1444 case AV_CODEC_ID_PCM_U8:
1445 case AV_CODEC_ID_PCM_ZORK:
1446 case AV_CODEC_ID_SDX2_DPCM:
1448 case AV_CODEC_ID_PCM_S16BE:
1449 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1450 case AV_CODEC_ID_PCM_S16LE:
1451 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1452 case AV_CODEC_ID_PCM_U16BE:
1453 case AV_CODEC_ID_PCM_U16LE:
1455 case AV_CODEC_ID_PCM_S24DAUD:
1456 case AV_CODEC_ID_PCM_S24BE:
1457 case AV_CODEC_ID_PCM_S24LE:
1458 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1459 case AV_CODEC_ID_PCM_U24BE:
1460 case AV_CODEC_ID_PCM_U24LE:
1462 case AV_CODEC_ID_PCM_S32BE:
1463 case AV_CODEC_ID_PCM_S32LE:
1464 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1465 case AV_CODEC_ID_PCM_U32BE:
1466 case AV_CODEC_ID_PCM_U32LE:
1467 case AV_CODEC_ID_PCM_F32BE:
1468 case AV_CODEC_ID_PCM_F32LE:
1469 case AV_CODEC_ID_PCM_F24LE:
1470 case AV_CODEC_ID_PCM_F16LE:
1472 case AV_CODEC_ID_PCM_F64BE:
1473 case AV_CODEC_ID_PCM_F64LE:
1474 case AV_CODEC_ID_PCM_S64BE:
1475 case AV_CODEC_ID_PCM_S64LE:
1482 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1484 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1485 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1486 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1487 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1488 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1489 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1490 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1491 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1492 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1493 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1494 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1495 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1497 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1498 return AV_CODEC_ID_NONE;
1499 if (be < 0 || be > 1)
1501 return map[fmt][be];
1504 int av_get_bits_per_sample(enum AVCodecID codec_id)
1507 case AV_CODEC_ID_ADPCM_SBPRO_2:
1509 case AV_CODEC_ID_ADPCM_SBPRO_3:
1511 case AV_CODEC_ID_ADPCM_SBPRO_4:
1512 case AV_CODEC_ID_ADPCM_IMA_WAV:
1513 case AV_CODEC_ID_ADPCM_IMA_QT:
1514 case AV_CODEC_ID_ADPCM_SWF:
1515 case AV_CODEC_ID_ADPCM_MS:
1518 return av_get_exact_bits_per_sample(codec_id);
1522 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1523 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1524 uint8_t * extradata, int frame_size, int frame_bytes)
1526 int bps = av_get_exact_bits_per_sample(id);
1527 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1529 /* codecs with an exact constant bits per sample */
1530 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1531 return (frame_bytes * 8LL) / (bps * ch);
1532 bps = bits_per_coded_sample;
1534 /* codecs with a fixed packet duration */
1536 case AV_CODEC_ID_ADPCM_ADX: return 32;
1537 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1538 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1539 case AV_CODEC_ID_AMR_NB:
1540 case AV_CODEC_ID_EVRC:
1541 case AV_CODEC_ID_GSM:
1542 case AV_CODEC_ID_QCELP:
1543 case AV_CODEC_ID_RA_288: return 160;
1544 case AV_CODEC_ID_AMR_WB:
1545 case AV_CODEC_ID_GSM_MS: return 320;
1546 case AV_CODEC_ID_MP1: return 384;
1547 case AV_CODEC_ID_ATRAC1: return 512;
1548 case AV_CODEC_ID_ATRAC9:
1549 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1550 case AV_CODEC_ID_ATRAC3P: return 2048;
1551 case AV_CODEC_ID_MP2:
1552 case AV_CODEC_ID_MUSEPACK7: return 1152;
1553 case AV_CODEC_ID_AC3: return 1536;
1557 /* calc from sample rate */
1558 if (id == AV_CODEC_ID_TTA)
1559 return 256 * sr / 245;
1560 else if (id == AV_CODEC_ID_DST)
1561 return 588 * sr / 44100;
1564 /* calc from sample rate and channels */
1565 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1566 return (480 << (sr / 22050)) / ch;
1569 if (id == AV_CODEC_ID_MP3)
1570 return sr <= 24000 ? 576 : 1152;
1574 /* calc from block_align */
1575 if (id == AV_CODEC_ID_SIPR) {
1577 case 20: return 160;
1578 case 19: return 144;
1579 case 29: return 288;
1580 case 37: return 480;
1582 } else if (id == AV_CODEC_ID_ILBC) {
1584 case 38: return 160;
1585 case 50: return 240;
1590 if (frame_bytes > 0) {
1591 /* calc from frame_bytes only */
1592 if (id == AV_CODEC_ID_TRUESPEECH)
1593 return 240 * (frame_bytes / 32);
1594 if (id == AV_CODEC_ID_NELLYMOSER)
1595 return 256 * (frame_bytes / 64);
1596 if (id == AV_CODEC_ID_RA_144)
1597 return 160 * (frame_bytes / 20);
1598 if (id == AV_CODEC_ID_G723_1)
1599 return 240 * (frame_bytes / 24);
1602 /* calc from frame_bytes and bits_per_coded_sample */
1603 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1604 return frame_bytes * 8 / bps;
1607 if (ch > 0 && ch < INT_MAX/16) {
1608 /* calc from frame_bytes and channels */
1610 case AV_CODEC_ID_ADPCM_AFC:
1611 return frame_bytes / (9 * ch) * 16;
1612 case AV_CODEC_ID_ADPCM_PSX:
1613 case AV_CODEC_ID_ADPCM_DTK:
1614 return frame_bytes / (16 * ch) * 28;
1615 case AV_CODEC_ID_ADPCM_4XM:
1616 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1617 case AV_CODEC_ID_ADPCM_IMA_ISS:
1618 return (frame_bytes - 4 * ch) * 2 / ch;
1619 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1620 return (frame_bytes - 4) * 2 / ch;
1621 case AV_CODEC_ID_ADPCM_IMA_AMV:
1622 return (frame_bytes - 8) * 2 / ch;
1623 case AV_CODEC_ID_ADPCM_THP:
1624 case AV_CODEC_ID_ADPCM_THP_LE:
1626 return frame_bytes * 14 / (8 * ch);
1628 case AV_CODEC_ID_ADPCM_XA:
1629 return (frame_bytes / 128) * 224 / ch;
1630 case AV_CODEC_ID_INTERPLAY_DPCM:
1631 return (frame_bytes - 6 - ch) / ch;
1632 case AV_CODEC_ID_ROQ_DPCM:
1633 return (frame_bytes - 8) / ch;
1634 case AV_CODEC_ID_XAN_DPCM:
1635 return (frame_bytes - 2 * ch) / ch;
1636 case AV_CODEC_ID_MACE3:
1637 return 3 * frame_bytes / ch;
1638 case AV_CODEC_ID_MACE6:
1639 return 6 * frame_bytes / ch;
1640 case AV_CODEC_ID_PCM_LXF:
1641 return 2 * (frame_bytes / (5 * ch));
1642 case AV_CODEC_ID_IAC:
1643 case AV_CODEC_ID_IMC:
1644 return 4 * frame_bytes / ch;
1648 /* calc from frame_bytes, channels, and codec_tag */
1649 if (id == AV_CODEC_ID_SOL_DPCM) {
1651 return frame_bytes / ch;
1653 return frame_bytes * 2 / ch;
1658 /* calc from frame_bytes, channels, and block_align */
1659 int blocks = frame_bytes / ba;
1661 case AV_CODEC_ID_ADPCM_IMA_WAV:
1662 if (bps < 2 || bps > 5)
1664 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1665 case AV_CODEC_ID_ADPCM_IMA_DK3:
1666 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1667 case AV_CODEC_ID_ADPCM_IMA_DK4:
1668 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1669 case AV_CODEC_ID_ADPCM_IMA_RAD:
1670 return blocks * ((ba - 4 * ch) * 2 / ch);
1671 case AV_CODEC_ID_ADPCM_MS:
1672 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1673 case AV_CODEC_ID_ADPCM_MTAF:
1674 return blocks * (ba - 16) * 2 / ch;
1679 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1681 case AV_CODEC_ID_PCM_DVD:
1682 if(bps<4 || frame_bytes<3)
1684 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1685 case AV_CODEC_ID_PCM_BLURAY:
1686 if(bps<4 || frame_bytes<4)
1688 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1689 case AV_CODEC_ID_S302M:
1690 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1696 /* Fall back on using frame_size */
1697 if (frame_size > 1 && frame_bytes)
1700 //For WMA we currently have no other means to calculate duration thus we
1701 //do it here by assuming CBR, which is true for all known cases.
1702 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1703 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1704 return (frame_bytes * 8LL * sr) / bitrate;
1710 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1712 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1713 avctx->channels, avctx->block_align,
1714 avctx->codec_tag, avctx->bits_per_coded_sample,
1715 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1719 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1721 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1722 par->channels, par->block_align,
1723 par->codec_tag, par->bits_per_coded_sample,
1724 par->bit_rate, par->extradata, par->frame_size,
1729 int ff_thread_init(AVCodecContext *s)
1736 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1750 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1753 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1757 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1760 if (!codec->hw_configs || index < 0)
1762 for (i = 0; i <= index; i++)
1763 if (!codec->hw_configs[i])
1765 return &codec->hw_configs[index]->public;
1768 #if FF_API_USER_VISIBLE_AVHWACCEL
1769 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1774 void av_register_hwaccel(AVHWAccel *hwaccel)
1780 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1786 unsigned int avpriv_toupper4(unsigned int x)
1788 return av_toupper(x & 0xFF) +
1789 (av_toupper((x >> 8) & 0xFF) << 8) +
1790 (av_toupper((x >> 16) & 0xFF) << 16) +
1791 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1794 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
1798 dst->owner[0] = src->owner[0];
1799 dst->owner[1] = src->owner[1];
1801 ret = av_frame_ref(dst->f, src->f);
1805 av_assert0(!dst->progress);
1807 if (src->progress &&
1808 !(dst->progress = av_buffer_ref(src->progress))) {
1809 ff_thread_release_buffer(dst->owner[0], dst);
1810 return AVERROR(ENOMEM);
1818 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1820 return ff_get_format(avctx, fmt);
1823 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1825 f->owner[0] = f->owner[1] = avctx;
1826 return ff_get_buffer(avctx, f->f, flags);
1829 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1832 av_frame_unref(f->f);
1835 void ff_thread_finish_setup(AVCodecContext *avctx)
1839 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1843 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1847 int ff_thread_can_start_frame(AVCodecContext *avctx)
1852 int ff_alloc_entries(AVCodecContext *avctx, int count)
1857 void ff_reset_entries(AVCodecContext *avctx)
1861 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1865 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1871 int avcodec_is_open(AVCodecContext *s)
1873 return !!s->internal;
1876 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1881 ret = av_bprint_finalize(buf, &str);
1884 if (!av_bprint_is_complete(buf)) {
1886 return AVERROR(ENOMEM);
1889 avctx->extradata = str;
1890 /* Note: the string is NUL terminated (so extradata can be read as a
1891 * string), but the ending character is not accounted in the size (in
1892 * binary formats you are likely not supposed to mux that character). When
1893 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1895 avctx->extradata_size = buf->len;
1899 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1901 uint32_t *av_restrict state)
1905 av_assert0(p <= end);
1909 for (i = 0; i < 3; i++) {
1910 uint32_t tmp = *state << 8;
1911 *state = tmp + *(p++);
1912 if (tmp == 0x100 || p == end)
1917 if (p[-1] > 1 ) p += 3;
1918 else if (p[-2] ) p += 2;
1919 else if (p[-3]|(p[-1]-1)) p++;
1926 p = FFMIN(p, end) - 4;
1927 *state = AV_RB32(p);
1932 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
1934 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1939 *size = sizeof(*props);
1941 props->vbv_delay = UINT64_MAX;
1946 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
1948 AVPacketSideData *tmp;
1949 AVCPBProperties *props;
1952 props = av_cpb_properties_alloc(&size);
1956 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1962 avctx->coded_side_data = tmp;
1963 avctx->nb_coded_side_data++;
1965 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
1966 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1967 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1972 static void codec_parameters_reset(AVCodecParameters *par)
1974 av_freep(&par->extradata);
1976 memset(par, 0, sizeof(*par));
1978 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
1979 par->codec_id = AV_CODEC_ID_NONE;
1981 par->field_order = AV_FIELD_UNKNOWN;
1982 par->color_range = AVCOL_RANGE_UNSPECIFIED;
1983 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
1984 par->color_trc = AVCOL_TRC_UNSPECIFIED;
1985 par->color_space = AVCOL_SPC_UNSPECIFIED;
1986 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
1987 par->sample_aspect_ratio = (AVRational){ 0, 1 };
1988 par->profile = FF_PROFILE_UNKNOWN;
1989 par->level = FF_LEVEL_UNKNOWN;
1992 AVCodecParameters *avcodec_parameters_alloc(void)
1994 AVCodecParameters *par = av_mallocz(sizeof(*par));
1998 codec_parameters_reset(par);
2002 void avcodec_parameters_free(AVCodecParameters **ppar)
2004 AVCodecParameters *par = *ppar;
2008 codec_parameters_reset(par);
2013 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2015 codec_parameters_reset(dst);
2016 memcpy(dst, src, sizeof(*dst));
2018 dst->extradata = NULL;
2019 dst->extradata_size = 0;
2020 if (src->extradata) {
2021 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2022 if (!dst->extradata)
2023 return AVERROR(ENOMEM);
2024 memcpy(dst->extradata, src->extradata, src->extradata_size);
2025 dst->extradata_size = src->extradata_size;
2031 int avcodec_parameters_from_context(AVCodecParameters *par,
2032 const AVCodecContext *codec)
2034 codec_parameters_reset(par);
2036 par->codec_type = codec->codec_type;
2037 par->codec_id = codec->codec_id;
2038 par->codec_tag = codec->codec_tag;
2040 par->bit_rate = codec->bit_rate;
2041 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2042 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2043 par->profile = codec->profile;
2044 par->level = codec->level;
2046 switch (par->codec_type) {
2047 case AVMEDIA_TYPE_VIDEO:
2048 par->format = codec->pix_fmt;
2049 par->width = codec->width;
2050 par->height = codec->height;
2051 par->field_order = codec->field_order;
2052 par->color_range = codec->color_range;
2053 par->color_primaries = codec->color_primaries;
2054 par->color_trc = codec->color_trc;
2055 par->color_space = codec->colorspace;
2056 par->chroma_location = codec->chroma_sample_location;
2057 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2058 par->video_delay = codec->has_b_frames;
2060 case AVMEDIA_TYPE_AUDIO:
2061 par->format = codec->sample_fmt;
2062 par->channel_layout = codec->channel_layout;
2063 par->channels = codec->channels;
2064 par->sample_rate = codec->sample_rate;
2065 par->block_align = codec->block_align;
2066 par->frame_size = codec->frame_size;
2067 par->initial_padding = codec->initial_padding;
2068 par->trailing_padding = codec->trailing_padding;
2069 par->seek_preroll = codec->seek_preroll;
2071 case AVMEDIA_TYPE_SUBTITLE:
2072 par->width = codec->width;
2073 par->height = codec->height;
2077 if (codec->extradata) {
2078 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2079 if (!par->extradata)
2080 return AVERROR(ENOMEM);
2081 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2082 par->extradata_size = codec->extradata_size;
2088 int avcodec_parameters_to_context(AVCodecContext *codec,
2089 const AVCodecParameters *par)
2091 codec->codec_type = par->codec_type;
2092 codec->codec_id = par->codec_id;
2093 codec->codec_tag = par->codec_tag;
2095 codec->bit_rate = par->bit_rate;
2096 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2097 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2098 codec->profile = par->profile;
2099 codec->level = par->level;
2101 switch (par->codec_type) {
2102 case AVMEDIA_TYPE_VIDEO:
2103 codec->pix_fmt = par->format;
2104 codec->width = par->width;
2105 codec->height = par->height;
2106 codec->field_order = par->field_order;
2107 codec->color_range = par->color_range;
2108 codec->color_primaries = par->color_primaries;
2109 codec->color_trc = par->color_trc;
2110 codec->colorspace = par->color_space;
2111 codec->chroma_sample_location = par->chroma_location;
2112 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2113 codec->has_b_frames = par->video_delay;
2115 case AVMEDIA_TYPE_AUDIO:
2116 codec->sample_fmt = par->format;
2117 codec->channel_layout = par->channel_layout;
2118 codec->channels = par->channels;
2119 codec->sample_rate = par->sample_rate;
2120 codec->block_align = par->block_align;
2121 codec->frame_size = par->frame_size;
2123 codec->initial_padding = par->initial_padding;
2124 codec->trailing_padding = par->trailing_padding;
2125 codec->seek_preroll = par->seek_preroll;
2127 case AVMEDIA_TYPE_SUBTITLE:
2128 codec->width = par->width;
2129 codec->height = par->height;
2133 if (par->extradata) {
2134 av_freep(&codec->extradata);
2135 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2136 if (!codec->extradata)
2137 return AVERROR(ENOMEM);
2138 memcpy(codec->extradata, par->extradata, par->extradata_size);
2139 codec->extradata_size = par->extradata_size;
2145 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2146 void **data, size_t *sei_size)
2148 AVFrameSideData *side_data = NULL;
2152 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2159 *sei_size = side_data->size + 11;
2160 *data = av_mallocz(*sei_size + prefix_len);
2162 return AVERROR(ENOMEM);
2163 sei_data = (uint8_t*)*data + prefix_len;
2171 * 'GA94' is standard in North America for ATSC, but hard coding
2172 * this style may not be the right thing to do -- other formats
2173 * do exist. This information is not available in the side_data
2174 * so we are going with this right now.
2176 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2178 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2181 memcpy(sei_data + 10, side_data->data, side_data->size);
2183 sei_data[side_data->size+10] = 255;
2188 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2190 AVRational framerate = avctx->framerate;
2191 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2194 if (!(framerate.num && framerate.den))
2195 framerate = av_inv_q(avctx->time_base);
2196 if (!(framerate.num && framerate.den))
2199 if (!bits_per_coded_sample) {
2200 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2201 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2203 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2204 framerate.num / framerate.den;