3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of Libav.
8 * Libav 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 * Libav 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 Libav; 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/channel_layout.h"
33 #include "libavutil/crc.h"
34 #include "libavutil/frame.h"
35 #include "libavutil/internal.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/pixdesc.h"
38 #include "libavutil/imgutils.h"
39 #include "libavutil/samplefmt.h"
40 #include "libavutil/dict.h"
42 #include "libavutil/opt.h"
44 #include "mpegvideo.h"
47 #include "bytestream.h"
54 static int volatile entangled_thread_counter = 0;
55 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op);
56 static void *codec_mutex;
57 static void *avformat_mutex;
59 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
62 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
67 av_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
69 memset((uint8_t *)*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
72 /* encoder management */
73 static AVCodec *first_avcodec = NULL;
75 AVCodec *av_codec_next(const AVCodec *c)
83 static av_cold void avcodec_init(void)
85 static int initialized = 0;
92 ff_me_cmp_init_static();
95 int av_codec_is_encoder(const AVCodec *codec)
97 return codec && (codec->encode_sub || codec->encode2);
100 int av_codec_is_decoder(const AVCodec *codec)
102 return codec && codec->decode;
105 av_cold void avcodec_register(AVCodec *codec)
115 if (codec->init_static_data)
116 codec->init_static_data(codec);
120 unsigned avcodec_get_edge_width(void)
126 #if FF_API_SET_DIMENSIONS
127 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
129 ff_set_dimensions(s, width, height);
133 int ff_set_dimensions(AVCodecContext *s, int width, int height)
135 int ret = av_image_check_size(width, height, 0, s);
139 s->width = s->coded_width = width;
140 s->height = s->coded_height = height;
145 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
147 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
150 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
152 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
155 avctx->sample_aspect_ratio = sar;
160 int ff_side_data_update_matrix_encoding(AVFrame *frame,
161 enum AVMatrixEncoding matrix_encoding)
163 AVFrameSideData *side_data;
164 enum AVMatrixEncoding *data;
166 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
168 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
169 sizeof(enum AVMatrixEncoding));
172 return AVERROR(ENOMEM);
174 data = (enum AVMatrixEncoding*)side_data->data;
175 *data = matrix_encoding;
180 #if HAVE_SIMD_ALIGN_16
181 # define STRIDE_ALIGN 16
183 # define STRIDE_ALIGN 8
186 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
187 int linesize_align[AV_NUM_DATA_POINTERS])
193 switch (s->pix_fmt) {
194 case AV_PIX_FMT_YUV420P:
195 case AV_PIX_FMT_YUYV422:
196 case AV_PIX_FMT_YVYU422:
197 case AV_PIX_FMT_UYVY422:
198 case AV_PIX_FMT_YUV422P:
199 case AV_PIX_FMT_YUV440P:
200 case AV_PIX_FMT_YUV444P:
201 case AV_PIX_FMT_GBRP:
202 case AV_PIX_FMT_GBRAP:
203 case AV_PIX_FMT_GRAY8:
204 case AV_PIX_FMT_GRAY16BE:
205 case AV_PIX_FMT_GRAY16LE:
206 case AV_PIX_FMT_YUVJ420P:
207 case AV_PIX_FMT_YUVJ422P:
208 case AV_PIX_FMT_YUVJ440P:
209 case AV_PIX_FMT_YUVJ444P:
210 case AV_PIX_FMT_YUVA420P:
211 case AV_PIX_FMT_YUVA422P:
212 case AV_PIX_FMT_YUVA444P:
213 case AV_PIX_FMT_YUV420P9LE:
214 case AV_PIX_FMT_YUV420P9BE:
215 case AV_PIX_FMT_YUV420P10LE:
216 case AV_PIX_FMT_YUV420P10BE:
217 case AV_PIX_FMT_YUV422P9LE:
218 case AV_PIX_FMT_YUV422P9BE:
219 case AV_PIX_FMT_YUV422P10LE:
220 case AV_PIX_FMT_YUV422P10BE:
221 case AV_PIX_FMT_YUVA422P10LE:
222 case AV_PIX_FMT_YUVA422P10BE:
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_YUVA444P10LE:
228 case AV_PIX_FMT_YUVA444P10BE:
229 case AV_PIX_FMT_GBRP9LE:
230 case AV_PIX_FMT_GBRP9BE:
231 case AV_PIX_FMT_GBRP10LE:
232 case AV_PIX_FMT_GBRP10BE:
233 w_align = 16; //FIXME assume 16 pixel per macroblock
234 h_align = 16 * 2; // interlaced needs 2 macroblocks height
236 case AV_PIX_FMT_YUV411P:
237 case AV_PIX_FMT_UYYVYY411:
241 case AV_PIX_FMT_YUV410P:
242 if (s->codec_id == AV_CODEC_ID_SVQ1) {
246 case AV_PIX_FMT_RGB555:
247 if (s->codec_id == AV_CODEC_ID_RPZA) {
251 case AV_PIX_FMT_PAL8:
252 case AV_PIX_FMT_BGR8:
253 case AV_PIX_FMT_RGB8:
254 if (s->codec_id == AV_CODEC_ID_SMC) {
259 case AV_PIX_FMT_BGR24:
260 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
261 (s->codec_id == AV_CODEC_ID_ZLIB)) {
272 *width = FFALIGN(*width, w_align);
273 *height = FFALIGN(*height, h_align);
274 if (s->codec_id == AV_CODEC_ID_H264)
275 // some of the optimized chroma MC reads one line too much
278 for (i = 0; i < 4; i++)
279 linesize_align[i] = STRIDE_ALIGN;
282 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
284 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
285 int chroma_shift = desc->log2_chroma_w;
286 int linesize_align[AV_NUM_DATA_POINTERS];
289 avcodec_align_dimensions2(s, width, height, linesize_align);
290 align = FFMAX(linesize_align[0], linesize_align[3]);
291 linesize_align[1] <<= chroma_shift;
292 linesize_align[2] <<= chroma_shift;
293 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
294 *width = FFALIGN(*width, align);
297 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
298 enum AVSampleFormat sample_fmt, const uint8_t *buf,
299 int buf_size, int align)
301 int ch, planar, needed_size, ret = 0;
303 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
304 frame->nb_samples, sample_fmt,
306 if (buf_size < needed_size)
307 return AVERROR(EINVAL);
309 planar = av_sample_fmt_is_planar(sample_fmt);
310 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
311 if (!(frame->extended_data = av_mallocz(nb_channels *
312 sizeof(*frame->extended_data))))
313 return AVERROR(ENOMEM);
315 frame->extended_data = frame->data;
318 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
319 buf, nb_channels, frame->nb_samples,
320 sample_fmt, align)) < 0) {
321 if (frame->extended_data != frame->data)
322 av_free(frame->extended_data);
325 if (frame->extended_data != frame->data) {
326 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
327 frame->data[ch] = frame->extended_data[ch];
333 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
335 FramePool *pool = avctx->internal->pool;
338 switch (avctx->codec_type) {
339 case AVMEDIA_TYPE_VIDEO: {
343 int w = frame->width;
344 int h = frame->height;
345 int tmpsize, unaligned;
347 if (pool->format == frame->format &&
348 pool->width == frame->width && pool->height == frame->height)
351 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
354 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
355 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
356 av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
357 // increase alignment of w for next try (rhs gives the lowest bit set in w)
361 for (i = 0; i < 4; i++)
362 unaligned |= linesize[i] % pool->stride_align[i];
365 tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
370 for (i = 0; i < 3 && data[i + 1]; i++)
371 size[i] = data[i + 1] - data[i];
372 size[i] = tmpsize - (data[i] - data[0]);
374 for (i = 0; i < 4; i++) {
375 av_buffer_pool_uninit(&pool->pools[i]);
376 pool->linesize[i] = linesize[i];
378 pool->pools[i] = av_buffer_pool_init(size[i] + 16, NULL);
379 if (!pool->pools[i]) {
380 ret = AVERROR(ENOMEM);
385 pool->format = frame->format;
386 pool->width = frame->width;
387 pool->height = frame->height;
391 case AVMEDIA_TYPE_AUDIO: {
392 int ch = av_get_channel_layout_nb_channels(frame->channel_layout);
393 int planar = av_sample_fmt_is_planar(frame->format);
394 int planes = planar ? ch : 1;
396 if (pool->format == frame->format && pool->planes == planes &&
397 pool->channels == ch && frame->nb_samples == pool->samples)
400 av_buffer_pool_uninit(&pool->pools[0]);
401 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
402 frame->nb_samples, frame->format, 0);
406 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
407 if (!pool->pools[0]) {
408 ret = AVERROR(ENOMEM);
412 pool->format = frame->format;
413 pool->planes = planes;
415 pool->samples = frame->nb_samples;
418 default: av_assert0(0);
422 for (i = 0; i < 4; i++)
423 av_buffer_pool_uninit(&pool->pools[i]);
425 pool->planes = pool->channels = pool->samples = 0;
426 pool->width = pool->height = 0;
430 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
432 FramePool *pool = avctx->internal->pool;
433 int planes = pool->planes;
436 frame->linesize[0] = pool->linesize[0];
438 if (planes > AV_NUM_DATA_POINTERS) {
439 frame->extended_data = av_mallocz(planes * sizeof(*frame->extended_data));
440 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
441 frame->extended_buf = av_mallocz(frame->nb_extended_buf *
442 sizeof(*frame->extended_buf));
443 if (!frame->extended_data || !frame->extended_buf) {
444 av_freep(&frame->extended_data);
445 av_freep(&frame->extended_buf);
446 return AVERROR(ENOMEM);
449 frame->extended_data = frame->data;
451 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
452 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
455 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
457 for (i = 0; i < frame->nb_extended_buf; i++) {
458 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
459 if (!frame->extended_buf[i])
461 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
464 if (avctx->debug & FF_DEBUG_BUFFERS)
465 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
469 av_frame_unref(frame);
470 return AVERROR(ENOMEM);
473 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
475 FramePool *pool = s->internal->pool;
479 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
483 memset(pic->data, 0, sizeof(pic->data));
484 pic->extended_data = pic->data;
486 for (i = 0; i < 4 && pool->pools[i]; i++) {
487 pic->linesize[i] = pool->linesize[i];
489 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
493 pic->data[i] = pic->buf[i]->data;
495 for (; i < AV_NUM_DATA_POINTERS; i++) {
497 pic->linesize[i] = 0;
499 if (pic->data[1] && !pic->data[2])
500 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
502 if (s->debug & FF_DEBUG_BUFFERS)
503 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
508 return AVERROR(ENOMEM);
511 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
515 if ((ret = update_frame_pool(avctx, frame)) < 0)
518 switch (avctx->codec_type) {
519 case AVMEDIA_TYPE_VIDEO:
520 return video_get_buffer(avctx, frame);
521 case AVMEDIA_TYPE_AUDIO:
522 return audio_get_buffer(avctx, frame);
528 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
530 AVPacket *pkt = avctx->internal->pkt;
533 enum AVPacketSideDataType packet;
534 enum AVFrameSideDataType frame;
536 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
537 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
538 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
539 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
542 frame->color_primaries = avctx->color_primaries;
543 frame->color_trc = avctx->color_trc;
544 frame->colorspace = avctx->colorspace;
545 frame->color_range = avctx->color_range;
546 frame->chroma_location = avctx->chroma_sample_location;
548 frame->reordered_opaque = avctx->reordered_opaque;
550 frame->pkt_pts = AV_NOPTS_VALUE;
554 frame->pkt_pts = pkt->pts;
556 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
558 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
560 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
564 return AVERROR(ENOMEM);
566 memcpy(frame_sd->data, packet_sd, size);
573 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
575 const AVHWAccel *hwaccel = avctx->hwaccel;
576 int override_dimensions = 1;
579 switch (avctx->codec_type) {
580 case AVMEDIA_TYPE_VIDEO:
581 if (frame->width <= 0 || frame->height <= 0) {
582 frame->width = FFMAX(avctx->width, avctx->coded_width);
583 frame->height = FFMAX(avctx->height, avctx->coded_height);
584 override_dimensions = 0;
586 if (frame->format < 0)
587 frame->format = avctx->pix_fmt;
588 if (!frame->sample_aspect_ratio.num)
589 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
591 if (av_image_check_sar(frame->width, frame->height,
592 frame->sample_aspect_ratio) < 0) {
593 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
594 frame->sample_aspect_ratio.num,
595 frame->sample_aspect_ratio.den);
596 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
599 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
602 case AVMEDIA_TYPE_AUDIO:
603 if (!frame->sample_rate)
604 frame->sample_rate = avctx->sample_rate;
605 if (frame->format < 0)
606 frame->format = avctx->sample_fmt;
607 if (!frame->channel_layout) {
608 if (avctx->channel_layout) {
609 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
611 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
613 return AVERROR(EINVAL);
616 frame->channel_layout = avctx->channel_layout;
618 if (avctx->channels > FF_SANE_NB_CHANNELS) {
619 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
621 return AVERROR(ENOSYS);
624 frame->channel_layout = av_get_default_channel_layout(avctx->channels);
625 if (!frame->channel_layout)
626 frame->channel_layout = (1ULL << avctx->channels) - 1;
630 default: return AVERROR(EINVAL);
633 ret = ff_decode_frame_props(avctx, frame);
638 if (hwaccel->alloc_frame) {
639 ret = hwaccel->alloc_frame(avctx, frame);
643 avctx->sw_pix_fmt = avctx->pix_fmt;
645 ret = avctx->get_buffer2(avctx, frame, flags);
648 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
649 frame->width = avctx->width;
650 frame->height = avctx->height;
656 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
661 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
664 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
666 if (av_frame_is_writable(frame))
667 return ff_decode_frame_props(avctx, frame);
669 tmp = av_frame_alloc();
671 return AVERROR(ENOMEM);
673 av_frame_move_ref(tmp, frame);
675 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
681 av_frame_copy(frame, tmp);
687 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
691 for (i = 0; i < count; i++) {
692 int r = func(c, (char *)arg + i * size);
699 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
703 for (i = 0; i < count; i++) {
704 int r = func(c, arg, i, 0);
711 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
713 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
714 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
717 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
719 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
724 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
725 enum AVPixelFormat pix_fmt)
727 AVHWAccel *hwaccel = NULL;
729 while ((hwaccel = av_hwaccel_next(hwaccel)))
730 if (hwaccel->id == codec_id
731 && hwaccel->pix_fmt == pix_fmt)
736 static int setup_hwaccel(AVCodecContext *avctx,
737 const enum AVPixelFormat fmt,
740 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
744 av_log(avctx, AV_LOG_ERROR,
745 "Could not find an AVHWAccel for the pixel format: %s",
747 return AVERROR(ENOENT);
750 if (hwa->priv_data_size) {
751 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
752 if (!avctx->internal->hwaccel_priv_data)
753 return AVERROR(ENOMEM);
757 ret = hwa->init(avctx);
759 av_freep(&avctx->internal->hwaccel_priv_data);
764 avctx->hwaccel = hwa;
769 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
771 const AVPixFmtDescriptor *desc;
772 enum AVPixelFormat *choices;
773 enum AVPixelFormat ret;
776 while (fmt[n] != AV_PIX_FMT_NONE)
780 avctx->sw_pix_fmt = fmt[n - 1];
781 av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
783 choices = av_malloc_array(n + 1, sizeof(*choices));
785 return AV_PIX_FMT_NONE;
787 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
790 if (avctx->hwaccel && avctx->hwaccel->uninit)
791 avctx->hwaccel->uninit(avctx);
792 av_freep(&avctx->internal->hwaccel_priv_data);
793 avctx->hwaccel = NULL;
795 ret = avctx->get_format(avctx, choices);
797 desc = av_pix_fmt_desc_get(ret);
799 ret = AV_PIX_FMT_NONE;
803 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
806 if (!setup_hwaccel(avctx, ret, desc->name))
809 /* Remove failed hwaccel from choices */
810 for (n = 0; choices[n] != ret; n++)
811 av_assert0(choices[n] != AV_PIX_FMT_NONE);
814 choices[n] = choices[n + 1];
815 while (choices[n++] != AV_PIX_FMT_NONE);
822 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
825 AVDictionary *tmp = NULL;
827 if (avcodec_is_open(avctx))
830 if ((!codec && !avctx->codec)) {
831 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2().\n");
832 return AVERROR(EINVAL);
834 if ((codec && avctx->codec && codec != avctx->codec)) {
835 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
836 "but %s passed to avcodec_open2().\n", avctx->codec->name, codec->name);
837 return AVERROR(EINVAL);
840 codec = avctx->codec;
842 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
843 return AVERROR(EINVAL);
846 av_dict_copy(&tmp, *options, 0);
848 /* If there is a user-supplied mutex locking routine, call it. */
849 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init) {
851 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
855 entangled_thread_counter++;
856 if (entangled_thread_counter != 1) {
857 av_log(avctx, AV_LOG_ERROR,
858 "Insufficient thread locking. At least %d threads are "
859 "calling avcodec_open2() at the same time right now.\n",
860 entangled_thread_counter);
866 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
867 if (!avctx->internal) {
868 ret = AVERROR(ENOMEM);
872 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
873 if (!avctx->internal->pool) {
874 ret = AVERROR(ENOMEM);
878 avctx->internal->to_free = av_frame_alloc();
879 if (!avctx->internal->to_free) {
880 ret = AVERROR(ENOMEM);
884 if (codec->priv_data_size > 0) {
885 if (!avctx->priv_data) {
886 avctx->priv_data = av_mallocz(codec->priv_data_size);
887 if (!avctx->priv_data) {
888 ret = AVERROR(ENOMEM);
891 if (codec->priv_class) {
892 *(const AVClass **)avctx->priv_data = codec->priv_class;
893 av_opt_set_defaults(avctx->priv_data);
896 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
899 avctx->priv_data = NULL;
901 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
904 if (avctx->coded_width && avctx->coded_height && !avctx->width && !avctx->height)
905 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
906 else if (avctx->width && avctx->height)
907 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
911 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
912 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
913 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
914 av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
915 ff_set_dimensions(avctx, 0, 0);
918 if (avctx->width > 0 && avctx->height > 0) {
919 if (av_image_check_sar(avctx->width, avctx->height,
920 avctx->sample_aspect_ratio) < 0) {
921 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
922 avctx->sample_aspect_ratio.num,
923 avctx->sample_aspect_ratio.den);
924 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
928 /* if the decoder init function was already called previously,
929 * free the already allocated subtitle_header before overwriting it */
930 if (av_codec_is_decoder(codec))
931 av_freep(&avctx->subtitle_header);
933 if (avctx->channels > FF_SANE_NB_CHANNELS) {
934 ret = AVERROR(EINVAL);
938 avctx->codec = codec;
939 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
940 avctx->codec_id == AV_CODEC_ID_NONE) {
941 avctx->codec_type = codec->type;
942 avctx->codec_id = codec->id;
944 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
945 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
946 av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
947 ret = AVERROR(EINVAL);
950 avctx->frame_number = 0;
952 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
953 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
954 ret = AVERROR_EXPERIMENTAL;
958 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
959 (!avctx->time_base.num || !avctx->time_base.den)) {
960 avctx->time_base.num = 1;
961 avctx->time_base.den = avctx->sample_rate;
965 ret = ff_thread_init(avctx);
970 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
971 avctx->thread_count = 1;
973 if (av_codec_is_encoder(avctx->codec)) {
975 #if FF_API_CODED_FRAME
976 FF_DISABLE_DEPRECATION_WARNINGS
977 avctx->coded_frame = av_frame_alloc();
978 if (!avctx->coded_frame) {
979 ret = AVERROR(ENOMEM);
982 FF_ENABLE_DEPRECATION_WARNINGS
984 if (avctx->codec->sample_fmts) {
985 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
986 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
988 if (avctx->channels == 1 &&
989 av_get_planar_sample_fmt(avctx->sample_fmt) ==
990 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
991 avctx->sample_fmt = avctx->codec->sample_fmts[i];
995 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
996 av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n");
997 ret = AVERROR(EINVAL);
1001 if (avctx->codec->pix_fmts) {
1002 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1003 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1005 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE) {
1006 av_log(avctx, AV_LOG_ERROR, "Specified pix_fmt is not supported\n");
1007 ret = AVERROR(EINVAL);
1010 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1011 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1012 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1013 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1014 avctx->color_range = AVCOL_RANGE_JPEG;
1016 if (avctx->codec->supported_samplerates) {
1017 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1018 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1020 if (avctx->codec->supported_samplerates[i] == 0) {
1021 av_log(avctx, AV_LOG_ERROR, "Specified sample_rate is not supported\n");
1022 ret = AVERROR(EINVAL);
1026 if (avctx->codec->channel_layouts) {
1027 if (!avctx->channel_layout) {
1028 av_log(avctx, AV_LOG_WARNING, "channel_layout not specified\n");
1030 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1031 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1033 if (avctx->codec->channel_layouts[i] == 0) {
1034 av_log(avctx, AV_LOG_ERROR, "Specified channel_layout is not supported\n");
1035 ret = AVERROR(EINVAL);
1040 if (avctx->channel_layout && avctx->channels) {
1041 if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
1042 av_log(avctx, AV_LOG_ERROR, "channel layout does not match number of channels\n");
1043 ret = AVERROR(EINVAL);
1046 } else if (avctx->channel_layout) {
1047 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1050 if (!avctx->rc_initial_buffer_occupancy)
1051 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1054 if (avctx->codec->init && !(avctx->active_thread_type & FF_THREAD_FRAME)) {
1055 ret = avctx->codec->init(avctx);
1061 #if FF_API_AUDIOENC_DELAY
1062 if (av_codec_is_encoder(avctx->codec))
1063 avctx->delay = avctx->initial_padding;
1066 if (av_codec_is_decoder(avctx->codec)) {
1067 /* validate channel layout from the decoder */
1068 if (avctx->channel_layout) {
1069 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1070 if (!avctx->channels)
1071 avctx->channels = channels;
1072 else if (channels != avctx->channels) {
1073 av_log(avctx, AV_LOG_WARNING,
1074 "channel layout does not match number of channels\n");
1075 avctx->channel_layout = 0;
1078 if (avctx->channels && avctx->channels < 0 ||
1079 avctx->channels > FF_SANE_NB_CHANNELS) {
1080 ret = AVERROR(EINVAL);
1084 #if FF_API_AVCTX_TIMEBASE
1085 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1086 avctx->time_base = av_inv_q(avctx->framerate);
1090 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init) {
1091 entangled_thread_counter--;
1093 /* Release any user-supplied mutex. */
1095 (*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
1100 av_dict_free(options);
1107 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1108 avctx->codec->close(avctx);
1110 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1111 av_opt_free(avctx->priv_data);
1114 #if FF_API_CODED_FRAME
1115 FF_DISABLE_DEPRECATION_WARNINGS
1116 av_frame_free(&avctx->coded_frame);
1117 FF_ENABLE_DEPRECATION_WARNINGS
1121 av_freep(&avctx->priv_data);
1122 if (avctx->internal) {
1123 av_frame_free(&avctx->internal->to_free);
1124 av_freep(&avctx->internal->pool);
1126 av_freep(&avctx->internal);
1127 avctx->codec = NULL;
1131 int ff_alloc_packet(AVPacket *avpkt, int size)
1133 if (size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
1134 return AVERROR(EINVAL);
1137 AVBufferRef *buf = avpkt->buf;
1139 if (avpkt->size < size)
1140 return AVERROR(EINVAL);
1142 av_init_packet(avpkt);
1147 return av_new_packet(avpkt, size);
1152 * Pad last frame with silence.
1154 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1156 AVFrame *frame = NULL;
1159 if (!(frame = av_frame_alloc()))
1160 return AVERROR(ENOMEM);
1162 frame->format = src->format;
1163 frame->channel_layout = src->channel_layout;
1164 frame->nb_samples = s->frame_size;
1165 ret = av_frame_get_buffer(frame, 32);
1169 ret = av_frame_copy_props(frame, src);
1173 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1174 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1176 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1177 frame->nb_samples - src->nb_samples,
1178 s->channels, s->sample_fmt)) < 0)
1186 av_frame_free(&frame);
1190 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1192 const AVFrame *frame,
1193 int *got_packet_ptr)
1196 AVFrame *padded_frame = NULL;
1198 int user_packet = !!avpkt->data;
1200 *got_packet_ptr = 0;
1202 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1203 av_packet_unref(avpkt);
1204 av_init_packet(avpkt);
1208 /* ensure that extended_data is properly set */
1209 if (frame && !frame->extended_data) {
1210 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1211 avctx->channels > AV_NUM_DATA_POINTERS) {
1212 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1213 "with more than %d channels, but extended_data is not set.\n",
1214 AV_NUM_DATA_POINTERS);
1215 return AVERROR(EINVAL);
1217 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1220 tmp.extended_data = tmp.data;
1224 /* extract audio service type metadata */
1226 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1227 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1228 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1231 /* check for valid frame size */
1233 if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
1234 if (frame->nb_samples > avctx->frame_size)
1235 return AVERROR(EINVAL);
1236 } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1237 if (frame->nb_samples < avctx->frame_size &&
1238 !avctx->internal->last_audio_frame) {
1239 ret = pad_last_frame(avctx, &padded_frame, frame);
1243 frame = padded_frame;
1244 avctx->internal->last_audio_frame = 1;
1247 if (frame->nb_samples != avctx->frame_size) {
1248 ret = AVERROR(EINVAL);
1254 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1256 if (*got_packet_ptr) {
1257 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1258 if (avpkt->pts == AV_NOPTS_VALUE)
1259 avpkt->pts = frame->pts;
1260 if (!avpkt->duration)
1261 avpkt->duration = ff_samples_to_time_base(avctx,
1264 avpkt->dts = avpkt->pts;
1269 if (!user_packet && avpkt->size) {
1270 ret = av_buffer_realloc(&avpkt->buf, avpkt->size);
1272 avpkt->data = avpkt->buf->data;
1275 avctx->frame_number++;
1278 if (ret < 0 || !*got_packet_ptr) {
1279 av_packet_unref(avpkt);
1280 av_init_packet(avpkt);
1284 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1285 * this needs to be moved to the encoders, but for now we can do it
1286 * here to simplify things */
1287 avpkt->flags |= AV_PKT_FLAG_KEY;
1290 av_frame_free(&padded_frame);
1292 #if FF_API_AUDIOENC_DELAY
1293 avctx->delay = avctx->initial_padding;
1299 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1301 const AVFrame *frame,
1302 int *got_packet_ptr)
1305 int user_packet = !!avpkt->data;
1307 *got_packet_ptr = 0;
1309 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1310 av_packet_unref(avpkt);
1311 av_init_packet(avpkt);
1316 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1317 return AVERROR(EINVAL);
1319 av_assert0(avctx->codec->encode2);
1321 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1323 if (!*got_packet_ptr)
1325 else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
1326 avpkt->pts = avpkt->dts = frame->pts;
1328 if (!user_packet && avpkt->size) {
1329 ret = av_buffer_realloc(&avpkt->buf, avpkt->size);
1331 avpkt->data = avpkt->buf->data;
1334 avctx->frame_number++;
1337 if (ret < 0 || !*got_packet_ptr)
1338 av_packet_unref(avpkt);
1344 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1345 const AVSubtitle *sub)
1348 if (sub->start_display_time) {
1349 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
1352 if (sub->num_rects == 0 || !sub->rects)
1354 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
1355 avctx->frame_number++;
1359 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
1362 const uint8_t *data;
1365 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
1369 if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
1370 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
1371 "changes, but PARAM_CHANGE side data was sent to it.\n");
1372 return AVERROR(EINVAL);
1378 flags = bytestream_get_le32(&data);
1381 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
1384 avctx->channels = bytestream_get_le32(&data);
1387 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
1390 avctx->channel_layout = bytestream_get_le64(&data);
1393 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
1396 avctx->sample_rate = bytestream_get_le32(&data);
1399 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
1402 avctx->width = bytestream_get_le32(&data);
1403 avctx->height = bytestream_get_le32(&data);
1405 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1412 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
1413 return AVERROR_INVALIDDATA;
1416 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
1420 /* move the original frame to our backup */
1421 av_frame_unref(avci->to_free);
1422 av_frame_move_ref(avci->to_free, frame);
1424 /* now copy everything except the AVBufferRefs back
1425 * note that we make a COPY of the side data, so calling av_frame_free() on
1426 * the caller's frame will work properly */
1427 ret = av_frame_copy_props(frame, avci->to_free);
1431 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
1432 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
1433 if (avci->to_free->extended_data != avci->to_free->data) {
1434 int planes = av_get_channel_layout_nb_channels(avci->to_free->channel_layout);
1435 int size = planes * sizeof(*frame->extended_data);
1438 av_frame_unref(frame);
1442 frame->extended_data = av_malloc(size);
1443 if (!frame->extended_data) {
1444 av_frame_unref(frame);
1445 return AVERROR(ENOMEM);
1447 memcpy(frame->extended_data, avci->to_free->extended_data,
1450 frame->extended_data = frame->data;
1452 frame->format = avci->to_free->format;
1453 frame->width = avci->to_free->width;
1454 frame->height = avci->to_free->height;
1455 frame->channel_layout = avci->to_free->channel_layout;
1456 frame->nb_samples = avci->to_free->nb_samples;
1461 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
1462 int *got_picture_ptr,
1465 AVCodecInternal *avci = avctx->internal;
1468 *got_picture_ptr = 0;
1469 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
1472 avctx->internal->pkt = avpkt;
1473 ret = apply_param_change(avctx, avpkt);
1475 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
1476 if (avctx->err_recognition & AV_EF_EXPLODE)
1480 av_frame_unref(picture);
1482 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
1483 (avctx->active_thread_type & FF_THREAD_FRAME)) {
1484 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1485 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
1488 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
1490 if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
1491 picture->pkt_dts = avpkt->dts;
1492 /* get_buffer is supposed to set frame parameters */
1493 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
1494 picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
1495 picture->width = avctx->width;
1496 picture->height = avctx->height;
1497 picture->format = avctx->pix_fmt;
1501 emms_c(); //needed to avoid an emms_c() call before every return;
1503 if (*got_picture_ptr) {
1504 if (!avctx->refcounted_frames) {
1505 int err = unrefcount_frame(avci, picture);
1510 avctx->frame_number++;
1512 av_frame_unref(picture);
1516 #if FF_API_AVCTX_TIMEBASE
1517 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1518 avctx->time_base = av_inv_q(avctx->framerate);
1524 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
1529 AVCodecInternal *avci = avctx->internal;
1534 avctx->internal->pkt = avpkt;
1536 if (!avpkt->data && avpkt->size) {
1537 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
1538 return AVERROR(EINVAL);
1541 ret = apply_param_change(avctx, avpkt);
1543 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
1544 if (avctx->err_recognition & AV_EF_EXPLODE)
1548 av_frame_unref(frame);
1550 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
1551 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, avpkt);
1552 if (ret >= 0 && *got_frame_ptr) {
1553 avctx->frame_number++;
1554 frame->pkt_dts = avpkt->dts;
1555 if (frame->format == AV_SAMPLE_FMT_NONE)
1556 frame->format = avctx->sample_fmt;
1558 if (!avctx->refcounted_frames) {
1559 int err = unrefcount_frame(avci, frame);
1564 av_frame_unref(frame);
1571 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
1577 avctx->internal->pkt = avpkt;
1579 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
1581 avctx->frame_number++;
1585 void avsubtitle_free(AVSubtitle *sub)
1589 for (i = 0; i < sub->num_rects; i++) {
1590 av_freep(&sub->rects[i]->data[0]);
1591 av_freep(&sub->rects[i]->data[1]);
1592 av_freep(&sub->rects[i]->data[2]);
1593 av_freep(&sub->rects[i]->data[3]);
1594 av_freep(&sub->rects[i]->text);
1595 av_freep(&sub->rects[i]->ass);
1596 av_freep(&sub->rects[i]);
1599 av_freep(&sub->rects);
1601 memset(sub, 0, sizeof(AVSubtitle));
1604 av_cold int avcodec_close(AVCodecContext *avctx)
1608 if (avcodec_is_open(avctx)) {
1609 FramePool *pool = avctx->internal->pool;
1611 if (HAVE_THREADS && avctx->internal->thread_ctx)
1612 ff_thread_free(avctx);
1613 if (avctx->codec && avctx->codec->close)
1614 avctx->codec->close(avctx);
1615 av_frame_free(&avctx->internal->to_free);
1616 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1617 av_buffer_pool_uninit(&pool->pools[i]);
1618 av_freep(&avctx->internal->pool);
1620 if (avctx->hwaccel && avctx->hwaccel->uninit)
1621 avctx->hwaccel->uninit(avctx);
1622 av_freep(&avctx->internal->hwaccel_priv_data);
1624 av_freep(&avctx->internal);
1627 for (i = 0; i < avctx->nb_coded_side_data; i++)
1628 av_freep(&avctx->coded_side_data[i].data);
1629 av_freep(&avctx->coded_side_data);
1630 avctx->nb_coded_side_data = 0;
1632 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1633 av_opt_free(avctx->priv_data);
1635 av_freep(&avctx->priv_data);
1636 if (av_codec_is_encoder(avctx->codec)) {
1637 av_freep(&avctx->extradata);
1638 #if FF_API_CODED_FRAME
1639 FF_DISABLE_DEPRECATION_WARNINGS
1640 av_frame_free(&avctx->coded_frame);
1641 FF_ENABLE_DEPRECATION_WARNINGS
1644 avctx->codec = NULL;
1645 avctx->active_thread_type = 0;
1650 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
1652 AVCodec *p, *experimental = NULL;
1655 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
1657 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
1664 return experimental;
1667 AVCodec *avcodec_find_encoder(enum AVCodecID id)
1669 return find_encdec(id, 1);
1672 AVCodec *avcodec_find_encoder_by_name(const char *name)
1679 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
1686 AVCodec *avcodec_find_decoder(enum AVCodecID id)
1688 return find_encdec(id, 0);
1691 AVCodec *avcodec_find_decoder_by_name(const char *name)
1698 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
1705 static int get_bit_rate(AVCodecContext *ctx)
1708 int bits_per_sample;
1710 switch (ctx->codec_type) {
1711 case AVMEDIA_TYPE_VIDEO:
1712 case AVMEDIA_TYPE_DATA:
1713 case AVMEDIA_TYPE_SUBTITLE:
1714 case AVMEDIA_TYPE_ATTACHMENT:
1715 bit_rate = ctx->bit_rate;
1717 case AVMEDIA_TYPE_AUDIO:
1718 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1719 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1728 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1730 int i, len, ret = 0;
1732 #define TAG_PRINT(x) \
1733 (((x) >= '0' && (x) <= '9') || \
1734 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1735 ((x) == '.' || (x) == ' '))
1737 for (i = 0; i < 4; i++) {
1738 len = snprintf(buf, buf_size,
1739 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1741 buf_size = buf_size > len ? buf_size - len : 0;
1748 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1750 const char *codec_name;
1751 const char *profile = NULL;
1756 AVRational display_aspect_ratio;
1757 const AVCodecDescriptor *desc = avcodec_descriptor_get(enc->codec_id);
1762 p = avcodec_find_encoder(enc->codec_id);
1764 p = avcodec_find_decoder(enc->codec_id);
1767 profile = av_get_profile_name(p, enc->profile);
1770 codec_name = desc->name;
1771 } else if (enc->codec_id == AV_CODEC_ID_MPEG2TS) {
1772 /* fake mpeg2 transport stream codec (currently not
1774 codec_name = "mpeg2ts";
1776 /* output avi tags */
1778 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
1779 snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag);
1783 switch (enc->codec_type) {
1784 case AVMEDIA_TYPE_VIDEO:
1785 snprintf(buf, buf_size,
1787 codec_name, enc->mb_decision ? " (hq)" : "");
1789 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1791 if (enc->codec_tag) {
1793 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
1794 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1795 " [%s / 0x%04X]", tag_buf, enc->codec_tag);
1798 av_strlcat(buf, "\n ", buf_size);
1799 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1800 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1801 av_get_pix_fmt_name(enc->pix_fmt));
1803 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1804 snprintf(buf + strlen(buf), buf_size - strlen(buf), ", %s",
1805 av_color_range_name(enc->color_range));
1806 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1807 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1808 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1810 snprintf(buf + strlen(buf), buf_size - strlen(buf), ", %s/%s/%s",
1811 av_color_space_name(enc->colorspace),
1812 av_color_primaries_name(enc->color_primaries),
1813 av_color_transfer_name(enc->color_trc));
1815 if (av_log_get_level() >= AV_LOG_DEBUG &&
1816 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1817 snprintf(buf + strlen(buf), buf_size - strlen(buf), ", %s",
1818 av_chroma_location_name(enc->chroma_sample_location));
1821 av_strlcat(buf, new_line ? "\n " : ", ", buf_size);
1823 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1825 enc->width, enc->height);
1827 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1828 (enc->width != enc->coded_width ||
1829 enc->height != enc->coded_height))
1830 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1831 " (%dx%d)", enc->coded_width, enc->coded_height);
1833 if (enc->sample_aspect_ratio.num) {
1834 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1835 enc->width * enc->sample_aspect_ratio.num,
1836 enc->height * enc->sample_aspect_ratio.den,
1838 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1839 " [PAR %d:%d DAR %d:%d]",
1840 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1841 display_aspect_ratio.num, display_aspect_ratio.den);
1843 if (av_log_get_level() >= AV_LOG_DEBUG) {
1844 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1845 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1847 enc->time_base.num / g, enc->time_base.den / g);
1851 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1852 ", q=%d-%d", enc->qmin, enc->qmax);
1855 case AVMEDIA_TYPE_AUDIO:
1856 snprintf(buf, buf_size,
1860 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1862 if (enc->codec_tag) {
1864 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
1865 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1866 " [%s / 0x%04X]", tag_buf, enc->codec_tag);
1869 av_strlcat(buf, "\n ", buf_size);
1870 if (enc->sample_rate) {
1871 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1872 "%d Hz, ", enc->sample_rate);
1874 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1875 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1876 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1877 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1880 case AVMEDIA_TYPE_DATA:
1881 snprintf(buf, buf_size, "Data: %s", codec_name);
1883 case AVMEDIA_TYPE_SUBTITLE:
1884 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1886 case AVMEDIA_TYPE_ATTACHMENT:
1887 snprintf(buf, buf_size, "Attachment: %s", codec_name);
1890 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1894 if (enc->flags & AV_CODEC_FLAG_PASS1)
1895 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1897 if (enc->flags & AV_CODEC_FLAG_PASS2)
1898 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1901 bitrate = get_bit_rate(enc);
1903 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1904 ", %d kb/s", bitrate / 1000);
1908 const char *av_get_profile_name(const AVCodec *codec, int profile)
1911 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1914 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1915 if (p->profile == profile)
1921 unsigned avcodec_version(void)
1923 return LIBAVCODEC_VERSION_INT;
1926 const char *avcodec_configuration(void)
1928 return LIBAV_CONFIGURATION;
1931 const char *avcodec_license(void)
1933 #define LICENSE_PREFIX "libavcodec license: "
1934 return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1937 void avcodec_flush_buffers(AVCodecContext *avctx)
1939 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1940 ff_thread_flush(avctx);
1941 else if (avctx->codec->flush)
1942 avctx->codec->flush(avctx);
1944 if (!avctx->refcounted_frames)
1945 av_frame_unref(avctx->internal->to_free);
1948 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1951 case AV_CODEC_ID_ADPCM_CT:
1952 case AV_CODEC_ID_ADPCM_IMA_APC:
1953 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1954 case AV_CODEC_ID_ADPCM_IMA_WS:
1955 case AV_CODEC_ID_ADPCM_G722:
1956 case AV_CODEC_ID_ADPCM_YAMAHA:
1958 case AV_CODEC_ID_PCM_ALAW:
1959 case AV_CODEC_ID_PCM_MULAW:
1960 case AV_CODEC_ID_PCM_S8:
1961 case AV_CODEC_ID_PCM_U8:
1962 case AV_CODEC_ID_PCM_ZORK:
1964 case AV_CODEC_ID_PCM_S16BE:
1965 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1966 case AV_CODEC_ID_PCM_S16LE:
1967 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1968 case AV_CODEC_ID_PCM_U16BE:
1969 case AV_CODEC_ID_PCM_U16LE:
1971 case AV_CODEC_ID_PCM_S24DAUD:
1972 case AV_CODEC_ID_PCM_S24BE:
1973 case AV_CODEC_ID_PCM_S24LE:
1974 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1975 case AV_CODEC_ID_PCM_U24BE:
1976 case AV_CODEC_ID_PCM_U24LE:
1978 case AV_CODEC_ID_PCM_S32BE:
1979 case AV_CODEC_ID_PCM_S32LE:
1980 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1981 case AV_CODEC_ID_PCM_U32BE:
1982 case AV_CODEC_ID_PCM_U32LE:
1983 case AV_CODEC_ID_PCM_F32BE:
1984 case AV_CODEC_ID_PCM_F32LE:
1986 case AV_CODEC_ID_PCM_F64BE:
1987 case AV_CODEC_ID_PCM_F64LE:
1994 int av_get_bits_per_sample(enum AVCodecID codec_id)
1997 case AV_CODEC_ID_ADPCM_SBPRO_2:
1999 case AV_CODEC_ID_ADPCM_SBPRO_3:
2001 case AV_CODEC_ID_ADPCM_SBPRO_4:
2002 case AV_CODEC_ID_ADPCM_IMA_WAV:
2003 case AV_CODEC_ID_ADPCM_IMA_QT:
2004 case AV_CODEC_ID_ADPCM_SWF:
2005 case AV_CODEC_ID_ADPCM_MS:
2008 return av_get_exact_bits_per_sample(codec_id);
2012 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
2014 int id, sr, ch, ba, tag, bps;
2016 id = avctx->codec_id;
2017 sr = avctx->sample_rate;
2018 ch = avctx->channels;
2019 ba = avctx->block_align;
2020 tag = avctx->codec_tag;
2021 bps = av_get_exact_bits_per_sample(avctx->codec_id);
2023 /* codecs with an exact constant bits per sample */
2024 if (bps > 0 && ch > 0 && frame_bytes > 0)
2025 return (frame_bytes * 8) / (bps * ch);
2026 bps = avctx->bits_per_coded_sample;
2028 /* codecs with a fixed packet duration */
2030 case AV_CODEC_ID_ADPCM_ADX: return 32;
2031 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
2032 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
2033 case AV_CODEC_ID_AMR_NB:
2034 case AV_CODEC_ID_GSM:
2035 case AV_CODEC_ID_QCELP:
2036 case AV_CODEC_ID_RA_144:
2037 case AV_CODEC_ID_RA_288: return 160;
2038 case AV_CODEC_ID_IMC: return 256;
2039 case AV_CODEC_ID_AMR_WB:
2040 case AV_CODEC_ID_GSM_MS: return 320;
2041 case AV_CODEC_ID_MP1: return 384;
2042 case AV_CODEC_ID_ATRAC1: return 512;
2043 case AV_CODEC_ID_ATRAC3: return 1024;
2044 case AV_CODEC_ID_MP2:
2045 case AV_CODEC_ID_MUSEPACK7: return 1152;
2046 case AV_CODEC_ID_AC3: return 1536;
2050 /* calc from sample rate */
2051 if (id == AV_CODEC_ID_TTA)
2052 return 256 * sr / 245;
2055 /* calc from sample rate and channels */
2056 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
2057 return (480 << (sr / 22050)) / ch;
2062 /* calc from block_align */
2063 if (id == AV_CODEC_ID_SIPR) {
2065 case 20: return 160;
2066 case 19: return 144;
2067 case 29: return 288;
2068 case 37: return 480;
2070 } else if (id == AV_CODEC_ID_ILBC) {
2072 case 38: return 160;
2073 case 50: return 240;
2078 if (frame_bytes > 0) {
2079 /* calc from frame_bytes only */
2080 if (id == AV_CODEC_ID_TRUESPEECH)
2081 return 240 * (frame_bytes / 32);
2082 if (id == AV_CODEC_ID_NELLYMOSER)
2083 return 256 * (frame_bytes / 64);
2086 /* calc from frame_bytes and bits_per_coded_sample */
2087 if (id == AV_CODEC_ID_ADPCM_G726)
2088 return frame_bytes * 8 / bps;
2092 /* calc from frame_bytes and channels */
2094 case AV_CODEC_ID_ADPCM_4XM:
2095 case AV_CODEC_ID_ADPCM_IMA_ISS:
2096 return (frame_bytes - 4 * ch) * 2 / ch;
2097 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
2098 return (frame_bytes - 4) * 2 / ch;
2099 case AV_CODEC_ID_ADPCM_IMA_AMV:
2100 return (frame_bytes - 8) * 2 / ch;
2101 case AV_CODEC_ID_ADPCM_XA:
2102 return (frame_bytes / 128) * 224 / ch;
2103 case AV_CODEC_ID_INTERPLAY_DPCM:
2104 return (frame_bytes - 6 - ch) / ch;
2105 case AV_CODEC_ID_ROQ_DPCM:
2106 return (frame_bytes - 8) / ch;
2107 case AV_CODEC_ID_XAN_DPCM:
2108 return (frame_bytes - 2 * ch) / ch;
2109 case AV_CODEC_ID_MACE3:
2110 return 3 * frame_bytes / ch;
2111 case AV_CODEC_ID_MACE6:
2112 return 6 * frame_bytes / ch;
2113 case AV_CODEC_ID_PCM_LXF:
2114 return 2 * (frame_bytes / (5 * ch));
2118 /* calc from frame_bytes, channels, and codec_tag */
2119 if (id == AV_CODEC_ID_SOL_DPCM) {
2121 return frame_bytes / ch;
2123 return frame_bytes * 2 / ch;
2128 /* calc from frame_bytes, channels, and block_align */
2129 int blocks = frame_bytes / ba;
2130 switch (avctx->codec_id) {
2131 case AV_CODEC_ID_ADPCM_IMA_WAV:
2132 return blocks * (1 + (ba - 4 * ch) / (4 * ch) * 8);
2133 case AV_CODEC_ID_ADPCM_IMA_DK3:
2134 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
2135 case AV_CODEC_ID_ADPCM_IMA_DK4:
2136 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
2137 case AV_CODEC_ID_ADPCM_MS:
2138 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
2143 /* calc from frame_bytes, channels, and bits_per_coded_sample */
2144 switch (avctx->codec_id) {
2145 case AV_CODEC_ID_PCM_DVD:
2146 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
2147 case AV_CODEC_ID_PCM_BLURAY:
2148 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
2149 case AV_CODEC_ID_S302M:
2150 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
2160 int ff_thread_init(AVCodecContext *s)
2167 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
2181 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
2184 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
2188 #if FF_API_MISSING_SAMPLE
2189 FF_DISABLE_DEPRECATION_WARNINGS
2190 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
2192 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your Libav "
2193 "version to the newest one from Git. If the problem still "
2194 "occurs, it means that your file has a feature which has not "
2195 "been implemented.\n", feature);
2197 av_log_ask_for_sample(avc, NULL);
2200 void av_log_ask_for_sample(void *avc, const char *msg, ...)
2202 va_list argument_list;
2204 va_start(argument_list, msg);
2207 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
2208 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
2209 "of this file to ftp://upload.libav.org/incoming/ "
2210 "and contact the libav-devel mailing list.\n");
2212 va_end(argument_list);
2214 FF_ENABLE_DEPRECATION_WARNINGS
2215 #endif /* FF_API_MISSING_SAMPLE */
2217 static AVHWAccel *first_hwaccel = NULL;
2219 void av_register_hwaccel(AVHWAccel *hwaccel)
2221 AVHWAccel **p = &first_hwaccel;
2225 hwaccel->next = NULL;
2228 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
2230 return hwaccel ? hwaccel->next : first_hwaccel;
2233 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
2236 // There is no good way to rollback a failure to destroy the
2237 // mutex, so we ignore failures.
2238 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
2239 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
2242 avformat_mutex = NULL;
2246 void *new_codec_mutex = NULL;
2247 void *new_avformat_mutex = NULL;
2249 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
2250 return err > 0 ? AVERROR_UNKNOWN : err;
2252 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
2253 // Ignore failures to destroy the newly created mutex.
2254 cb(&new_codec_mutex, AV_LOCK_DESTROY);
2255 return err > 0 ? AVERROR_UNKNOWN : err;
2258 codec_mutex = new_codec_mutex;
2259 avformat_mutex = new_avformat_mutex;
2265 int avpriv_lock_avformat(void)
2268 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
2274 int avpriv_unlock_avformat(void)
2277 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
2283 unsigned int avpriv_toupper4(unsigned int x)
2285 return av_toupper(x & 0xFF) +
2286 (av_toupper((x >> 8) & 0xFF) << 8) +
2287 (av_toupper((x >> 16) & 0xFF) << 16) +
2288 (av_toupper((x >> 24) & 0xFF) << 24);
2291 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
2295 dst->owner = src->owner;
2297 ret = av_frame_ref(dst->f, src->f);
2301 if (src->progress &&
2302 !(dst->progress = av_buffer_ref(src->progress))) {
2303 ff_thread_release_buffer(dst->owner, dst);
2304 return AVERROR(ENOMEM);
2312 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
2315 return ff_get_buffer(avctx, f->f, flags);
2318 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
2321 av_frame_unref(f->f);
2324 void ff_thread_finish_setup(AVCodecContext *avctx)
2328 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
2332 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
2338 int avcodec_is_open(AVCodecContext *s)
2340 return !!s->internal;
2343 const uint8_t *avpriv_find_start_code(const uint8_t *restrict p,
2345 uint32_t * restrict state)
2353 for (i = 0; i < 3; i++) {
2354 uint32_t tmp = *state << 8;
2355 *state = tmp + *(p++);
2356 if (tmp == 0x100 || p == end)
2361 if (p[-1] > 1 ) p += 3;
2362 else if (p[-2] ) p += 2;
2363 else if (p[-3]|(p[-1]-1)) p++;
2370 p = FFMIN(p, end) - 4;
2371 *state = AV_RB32(p);
2376 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
2378 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2383 *size = sizeof(*props);
2385 props->vbv_delay = UINT64_MAX;
2390 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2392 AVPacketSideData *tmp;
2393 AVCPBProperties *props;
2396 props = av_cpb_properties_alloc(&size);
2400 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2406 avctx->coded_side_data = tmp;
2407 avctx->nb_coded_side_data++;
2409 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2410 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2411 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;