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/atomic.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/bprint.h"
34 #include "libavutil/channel_layout.h"
35 #include "libavutil/crc.h"
36 #include "libavutil/frame.h"
37 #include "libavutil/hwcontext.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/mem_internal.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/imgutils.h"
43 #include "libavutil/samplefmt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/thread.h"
47 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
51 #include "frame_thread_encoder.h"
54 #include "bytestream.h"
64 #include "libavutil/ffversion.h"
65 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
68 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
70 void * volatile * mutex = arg;
78 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
80 return AVERROR(ENOMEM);
81 if ((err = pthread_mutex_init(tmp, NULL))) {
85 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
86 pthread_mutex_destroy(tmp);
91 if ((err = pthread_mutex_lock(*mutex)))
96 if ((err = pthread_mutex_unlock(*mutex)))
100 case AV_LOCK_DESTROY:
102 pthread_mutex_destroy(*mutex);
104 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
109 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
111 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
115 volatile int ff_avcodec_locked;
116 static int volatile entangled_thread_counter = 0;
117 static void *codec_mutex;
118 static void *avformat_mutex;
120 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
123 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
128 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
129 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
132 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
135 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
140 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
141 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
144 /* encoder management */
145 static AVCodec *first_avcodec = NULL;
146 static AVCodec **last_avcodec = &first_avcodec;
148 AVCodec *av_codec_next(const AVCodec *c)
153 return first_avcodec;
156 static av_cold void avcodec_init(void)
158 static int initialized = 0;
160 if (initialized != 0)
165 ff_me_cmp_init_static();
168 int av_codec_is_encoder(const AVCodec *codec)
170 return codec && (codec->encode_sub || codec->encode2);
173 int av_codec_is_decoder(const AVCodec *codec)
175 return codec && codec->decode;
178 av_cold void avcodec_register(AVCodec *codec)
185 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
187 last_avcodec = &codec->next;
189 if (codec->init_static_data)
190 codec->init_static_data(codec);
194 unsigned avcodec_get_edge_width(void)
200 #if FF_API_SET_DIMENSIONS
201 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
203 int ret = ff_set_dimensions(s, width, height);
205 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
210 int ff_set_dimensions(AVCodecContext *s, int width, int height)
212 int ret = av_image_check_size(width, height, 0, s);
217 s->coded_width = width;
218 s->coded_height = height;
219 s->width = AV_CEIL_RSHIFT(width, s->lowres);
220 s->height = AV_CEIL_RSHIFT(height, s->lowres);
225 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
227 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
230 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
232 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
235 avctx->sample_aspect_ratio = sar;
240 int ff_side_data_update_matrix_encoding(AVFrame *frame,
241 enum AVMatrixEncoding matrix_encoding)
243 AVFrameSideData *side_data;
244 enum AVMatrixEncoding *data;
246 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
248 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
249 sizeof(enum AVMatrixEncoding));
252 return AVERROR(ENOMEM);
254 data = (enum AVMatrixEncoding*)side_data->data;
255 *data = matrix_encoding;
260 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
261 int linesize_align[AV_NUM_DATA_POINTERS])
266 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
269 w_align = 1 << desc->log2_chroma_w;
270 h_align = 1 << desc->log2_chroma_h;
273 switch (s->pix_fmt) {
274 case AV_PIX_FMT_YUV420P:
275 case AV_PIX_FMT_YUYV422:
276 case AV_PIX_FMT_YVYU422:
277 case AV_PIX_FMT_UYVY422:
278 case AV_PIX_FMT_YUV422P:
279 case AV_PIX_FMT_YUV440P:
280 case AV_PIX_FMT_YUV444P:
281 case AV_PIX_FMT_GBRP:
282 case AV_PIX_FMT_GBRAP:
283 case AV_PIX_FMT_GRAY8:
284 case AV_PIX_FMT_GRAY16BE:
285 case AV_PIX_FMT_GRAY16LE:
286 case AV_PIX_FMT_YUVJ420P:
287 case AV_PIX_FMT_YUVJ422P:
288 case AV_PIX_FMT_YUVJ440P:
289 case AV_PIX_FMT_YUVJ444P:
290 case AV_PIX_FMT_YUVA420P:
291 case AV_PIX_FMT_YUVA422P:
292 case AV_PIX_FMT_YUVA444P:
293 case AV_PIX_FMT_YUV420P9LE:
294 case AV_PIX_FMT_YUV420P9BE:
295 case AV_PIX_FMT_YUV420P10LE:
296 case AV_PIX_FMT_YUV420P10BE:
297 case AV_PIX_FMT_YUV420P12LE:
298 case AV_PIX_FMT_YUV420P12BE:
299 case AV_PIX_FMT_YUV420P14LE:
300 case AV_PIX_FMT_YUV420P14BE:
301 case AV_PIX_FMT_YUV420P16LE:
302 case AV_PIX_FMT_YUV420P16BE:
303 case AV_PIX_FMT_YUVA420P9LE:
304 case AV_PIX_FMT_YUVA420P9BE:
305 case AV_PIX_FMT_YUVA420P10LE:
306 case AV_PIX_FMT_YUVA420P10BE:
307 case AV_PIX_FMT_YUVA420P16LE:
308 case AV_PIX_FMT_YUVA420P16BE:
309 case AV_PIX_FMT_YUV422P9LE:
310 case AV_PIX_FMT_YUV422P9BE:
311 case AV_PIX_FMT_YUV422P10LE:
312 case AV_PIX_FMT_YUV422P10BE:
313 case AV_PIX_FMT_YUV422P12LE:
314 case AV_PIX_FMT_YUV422P12BE:
315 case AV_PIX_FMT_YUV422P14LE:
316 case AV_PIX_FMT_YUV422P14BE:
317 case AV_PIX_FMT_YUV422P16LE:
318 case AV_PIX_FMT_YUV422P16BE:
319 case AV_PIX_FMT_YUVA422P9LE:
320 case AV_PIX_FMT_YUVA422P9BE:
321 case AV_PIX_FMT_YUVA422P10LE:
322 case AV_PIX_FMT_YUVA422P10BE:
323 case AV_PIX_FMT_YUVA422P16LE:
324 case AV_PIX_FMT_YUVA422P16BE:
325 case AV_PIX_FMT_YUV440P10LE:
326 case AV_PIX_FMT_YUV440P10BE:
327 case AV_PIX_FMT_YUV440P12LE:
328 case AV_PIX_FMT_YUV440P12BE:
329 case AV_PIX_FMT_YUV444P9LE:
330 case AV_PIX_FMT_YUV444P9BE:
331 case AV_PIX_FMT_YUV444P10LE:
332 case AV_PIX_FMT_YUV444P10BE:
333 case AV_PIX_FMT_YUV444P12LE:
334 case AV_PIX_FMT_YUV444P12BE:
335 case AV_PIX_FMT_YUV444P14LE:
336 case AV_PIX_FMT_YUV444P14BE:
337 case AV_PIX_FMT_YUV444P16LE:
338 case AV_PIX_FMT_YUV444P16BE:
339 case AV_PIX_FMT_YUVA444P9LE:
340 case AV_PIX_FMT_YUVA444P9BE:
341 case AV_PIX_FMT_YUVA444P10LE:
342 case AV_PIX_FMT_YUVA444P10BE:
343 case AV_PIX_FMT_YUVA444P16LE:
344 case AV_PIX_FMT_YUVA444P16BE:
345 case AV_PIX_FMT_GBRP9LE:
346 case AV_PIX_FMT_GBRP9BE:
347 case AV_PIX_FMT_GBRP10LE:
348 case AV_PIX_FMT_GBRP10BE:
349 case AV_PIX_FMT_GBRP12LE:
350 case AV_PIX_FMT_GBRP12BE:
351 case AV_PIX_FMT_GBRP14LE:
352 case AV_PIX_FMT_GBRP14BE:
353 case AV_PIX_FMT_GBRP16LE:
354 case AV_PIX_FMT_GBRP16BE:
355 case AV_PIX_FMT_GBRAP12LE:
356 case AV_PIX_FMT_GBRAP12BE:
357 case AV_PIX_FMT_GBRAP16LE:
358 case AV_PIX_FMT_GBRAP16BE:
359 w_align = 16; //FIXME assume 16 pixel per macroblock
360 h_align = 16 * 2; // interlaced needs 2 macroblocks height
362 case AV_PIX_FMT_YUV411P:
363 case AV_PIX_FMT_YUVJ411P:
364 case AV_PIX_FMT_UYYVYY411:
368 case AV_PIX_FMT_YUV410P:
369 if (s->codec_id == AV_CODEC_ID_SVQ1) {
374 case AV_PIX_FMT_RGB555:
375 if (s->codec_id == AV_CODEC_ID_RPZA) {
380 case AV_PIX_FMT_PAL8:
381 case AV_PIX_FMT_BGR8:
382 case AV_PIX_FMT_RGB8:
383 if (s->codec_id == AV_CODEC_ID_SMC ||
384 s->codec_id == AV_CODEC_ID_CINEPAK) {
388 if (s->codec_id == AV_CODEC_ID_JV) {
393 case AV_PIX_FMT_BGR24:
394 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
395 (s->codec_id == AV_CODEC_ID_ZLIB)) {
400 case AV_PIX_FMT_RGB24:
401 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
410 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
411 w_align = FFMAX(w_align, 8);
414 *width = FFALIGN(*width, w_align);
415 *height = FFALIGN(*height, h_align);
416 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
417 // some of the optimized chroma MC reads one line too much
418 // which is also done in mpeg decoders with lowres > 0
421 // H.264 uses edge emulation for out of frame motion vectors, for this
422 // it requires a temporary area large enough to hold a 21x21 block,
423 // increasing witdth ensure that the temporary area is large enough,
424 // the next rounded up width is 32
425 *width = FFMAX(*width, 32);
428 for (i = 0; i < 4; i++)
429 linesize_align[i] = STRIDE_ALIGN;
432 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
434 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
435 int chroma_shift = desc->log2_chroma_w;
436 int linesize_align[AV_NUM_DATA_POINTERS];
439 avcodec_align_dimensions2(s, width, height, linesize_align);
440 align = FFMAX(linesize_align[0], linesize_align[3]);
441 linesize_align[1] <<= chroma_shift;
442 linesize_align[2] <<= chroma_shift;
443 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
444 *width = FFALIGN(*width, align);
447 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
449 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
450 return AVERROR(EINVAL);
453 *xpos = (pos&1) * 128;
454 *ypos = ((pos>>1)^(pos<4)) * 128;
459 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
463 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
464 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
467 return AVCHROMA_LOC_UNSPECIFIED;
470 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
471 enum AVSampleFormat sample_fmt, const uint8_t *buf,
472 int buf_size, int align)
474 int ch, planar, needed_size, ret = 0;
476 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
477 frame->nb_samples, sample_fmt,
479 if (buf_size < needed_size)
480 return AVERROR(EINVAL);
482 planar = av_sample_fmt_is_planar(sample_fmt);
483 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
484 if (!(frame->extended_data = av_mallocz_array(nb_channels,
485 sizeof(*frame->extended_data))))
486 return AVERROR(ENOMEM);
488 frame->extended_data = frame->data;
491 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
492 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
493 sample_fmt, align)) < 0) {
494 if (frame->extended_data != frame->data)
495 av_freep(&frame->extended_data);
498 if (frame->extended_data != frame->data) {
499 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
500 frame->data[ch] = frame->extended_data[ch];
506 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
508 FramePool *pool = avctx->internal->pool;
511 switch (avctx->codec_type) {
512 case AVMEDIA_TYPE_VIDEO: {
516 int w = frame->width;
517 int h = frame->height;
518 int tmpsize, unaligned;
520 if (pool->format == frame->format &&
521 pool->width == frame->width && pool->height == frame->height)
524 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
527 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
528 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
529 ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
532 // increase alignment of w for next try (rhs gives the lowest bit set in w)
536 for (i = 0; i < 4; i++)
537 unaligned |= linesize[i] % pool->stride_align[i];
540 tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
545 for (i = 0; i < 3 && data[i + 1]; i++)
546 size[i] = data[i + 1] - data[i];
547 size[i] = tmpsize - (data[i] - data[0]);
549 for (i = 0; i < 4; i++) {
550 av_buffer_pool_uninit(&pool->pools[i]);
551 pool->linesize[i] = linesize[i];
553 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
554 CONFIG_MEMORY_POISONING ?
557 if (!pool->pools[i]) {
558 ret = AVERROR(ENOMEM);
563 pool->format = frame->format;
564 pool->width = frame->width;
565 pool->height = frame->height;
569 case AVMEDIA_TYPE_AUDIO: {
570 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
571 int planar = av_sample_fmt_is_planar(frame->format);
572 int planes = planar ? ch : 1;
574 if (pool->format == frame->format && pool->planes == planes &&
575 pool->channels == ch && frame->nb_samples == pool->samples)
578 av_buffer_pool_uninit(&pool->pools[0]);
579 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
580 frame->nb_samples, frame->format, 0);
584 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
585 if (!pool->pools[0]) {
586 ret = AVERROR(ENOMEM);
590 pool->format = frame->format;
591 pool->planes = planes;
593 pool->samples = frame->nb_samples;
596 default: av_assert0(0);
600 for (i = 0; i < 4; i++)
601 av_buffer_pool_uninit(&pool->pools[i]);
603 pool->planes = pool->channels = pool->samples = 0;
604 pool->width = pool->height = 0;
608 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
610 FramePool *pool = avctx->internal->pool;
611 int planes = pool->planes;
614 frame->linesize[0] = pool->linesize[0];
616 if (planes > AV_NUM_DATA_POINTERS) {
617 frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
618 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
619 frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
620 sizeof(*frame->extended_buf));
621 if (!frame->extended_data || !frame->extended_buf) {
622 av_freep(&frame->extended_data);
623 av_freep(&frame->extended_buf);
624 return AVERROR(ENOMEM);
627 frame->extended_data = frame->data;
628 av_assert0(frame->nb_extended_buf == 0);
631 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
632 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
635 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
637 for (i = 0; i < frame->nb_extended_buf; i++) {
638 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
639 if (!frame->extended_buf[i])
641 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
644 if (avctx->debug & FF_DEBUG_BUFFERS)
645 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
649 av_frame_unref(frame);
650 return AVERROR(ENOMEM);
653 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
655 FramePool *pool = s->internal->pool;
656 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
660 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
665 av_log(s, AV_LOG_ERROR,
666 "Unable to get pixel format descriptor for format %s\n",
667 av_get_pix_fmt_name(pic->format));
668 return AVERROR(EINVAL);
671 memset(pic->data, 0, sizeof(pic->data));
672 pic->extended_data = pic->data;
674 for (i = 0; i < 4 && pool->pools[i]; i++) {
675 pic->linesize[i] = pool->linesize[i];
677 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
681 pic->data[i] = pic->buf[i]->data;
683 for (; i < AV_NUM_DATA_POINTERS; i++) {
685 pic->linesize[i] = 0;
687 if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
688 desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)
689 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
691 if (s->debug & FF_DEBUG_BUFFERS)
692 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
697 return AVERROR(ENOMEM);
700 void ff_color_frame(AVFrame *frame, const int c[4])
702 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
705 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
707 for (p = 0; p<desc->nb_components; p++) {
708 uint8_t *dst = frame->data[p];
709 int is_chroma = p == 1 || p == 2;
710 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
711 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
712 for (y = 0; y < height; y++) {
713 if (desc->comp[0].depth >= 9) {
714 for (x = 0; x<bytes; x++)
715 ((uint16_t*)dst)[x] = c[p];
717 memset(dst, c[p], bytes);
718 dst += frame->linesize[p];
723 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
727 if ((ret = update_frame_pool(avctx, frame)) < 0)
730 switch (avctx->codec_type) {
731 case AVMEDIA_TYPE_VIDEO:
732 return video_get_buffer(avctx, frame);
733 case AVMEDIA_TYPE_AUDIO:
734 return audio_get_buffer(avctx, frame);
740 static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame)
743 const uint8_t *side_metadata;
745 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
747 side_metadata = av_packet_get_side_data(avpkt,
748 AV_PKT_DATA_STRINGS_METADATA, &size);
749 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
752 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
754 AVPacket *pkt = avctx->internal->pkt;
756 static const struct {
757 enum AVPacketSideDataType packet;
758 enum AVFrameSideDataType frame;
760 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
761 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
762 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
763 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
767 frame->pkt_pts = pkt->pts;
768 av_frame_set_pkt_pos (frame, pkt->pos);
769 av_frame_set_pkt_duration(frame, pkt->duration);
770 av_frame_set_pkt_size (frame, pkt->size);
772 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
774 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
776 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
780 return AVERROR(ENOMEM);
782 memcpy(frame_sd->data, packet_sd, size);
785 add_metadata_from_side_data(pkt, frame);
787 frame->pkt_pts = AV_NOPTS_VALUE;
788 av_frame_set_pkt_pos (frame, -1);
789 av_frame_set_pkt_duration(frame, 0);
790 av_frame_set_pkt_size (frame, -1);
792 frame->reordered_opaque = avctx->reordered_opaque;
794 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
795 frame->color_primaries = avctx->color_primaries;
796 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
797 frame->color_trc = avctx->color_trc;
798 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
799 av_frame_set_colorspace(frame, avctx->colorspace);
800 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
801 av_frame_set_color_range(frame, avctx->color_range);
802 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
803 frame->chroma_location = avctx->chroma_sample_location;
805 switch (avctx->codec->type) {
806 case AVMEDIA_TYPE_VIDEO:
807 frame->format = avctx->pix_fmt;
808 if (!frame->sample_aspect_ratio.num)
809 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
811 if (frame->width && frame->height &&
812 av_image_check_sar(frame->width, frame->height,
813 frame->sample_aspect_ratio) < 0) {
814 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
815 frame->sample_aspect_ratio.num,
816 frame->sample_aspect_ratio.den);
817 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
821 case AVMEDIA_TYPE_AUDIO:
822 if (!frame->sample_rate)
823 frame->sample_rate = avctx->sample_rate;
824 if (frame->format < 0)
825 frame->format = avctx->sample_fmt;
826 if (!frame->channel_layout) {
827 if (avctx->channel_layout) {
828 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
830 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
832 return AVERROR(EINVAL);
835 frame->channel_layout = avctx->channel_layout;
837 if (avctx->channels > FF_SANE_NB_CHANNELS) {
838 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
840 return AVERROR(ENOSYS);
844 av_frame_set_channels(frame, avctx->channels);
850 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
852 return ff_init_buffer_info(avctx, frame);
855 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
857 const AVHWAccel *hwaccel = avctx->hwaccel;
858 int override_dimensions = 1;
861 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
862 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
863 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
864 return AVERROR(EINVAL);
867 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
868 if (frame->width <= 0 || frame->height <= 0) {
869 frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
870 frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
871 override_dimensions = 0;
874 ret = ff_decode_frame_props(avctx, frame);
879 if (hwaccel->alloc_frame) {
880 ret = hwaccel->alloc_frame(avctx, frame);
884 avctx->sw_pix_fmt = avctx->pix_fmt;
886 ret = avctx->get_buffer2(avctx, frame, flags);
889 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
890 frame->width = avctx->width;
891 frame->height = avctx->height;
897 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
899 int ret = get_buffer_internal(avctx, frame, flags);
901 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
902 frame->width = frame->height = 0;
907 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
912 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
914 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
915 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
916 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
917 av_frame_unref(frame);
920 ff_init_buffer_info(avctx, frame);
923 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
925 if (av_frame_is_writable(frame))
926 return ff_decode_frame_props(avctx, frame);
928 tmp = av_frame_alloc();
930 return AVERROR(ENOMEM);
932 av_frame_move_ref(tmp, frame);
934 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
940 av_frame_copy(frame, tmp);
946 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
948 int ret = reget_buffer_internal(avctx, frame);
950 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
954 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
958 for (i = 0; i < count; i++) {
959 int r = func(c, (char *)arg + i * size);
966 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
970 for (i = 0; i < count; i++) {
971 int r = func(c, arg, i, 0);
978 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
981 while (tags->pix_fmt >= 0) {
982 if (tags->fourcc == fourcc)
983 return tags->pix_fmt;
986 return AV_PIX_FMT_NONE;
989 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
991 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
992 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
995 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
997 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1002 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
1003 enum AVPixelFormat pix_fmt)
1005 AVHWAccel *hwaccel = NULL;
1007 while ((hwaccel = av_hwaccel_next(hwaccel)))
1008 if (hwaccel->id == codec_id
1009 && hwaccel->pix_fmt == pix_fmt)
1014 static int setup_hwaccel(AVCodecContext *avctx,
1015 const enum AVPixelFormat fmt,
1018 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1021 if (avctx->active_thread_type & FF_THREAD_FRAME) {
1022 av_log(avctx, AV_LOG_WARNING,
1023 "Hardware accelerated decoding with frame threading is known to be unstable and its use is discouraged.\n");
1027 av_log(avctx, AV_LOG_ERROR,
1028 "Could not find an AVHWAccel for the pixel format: %s",
1030 return AVERROR(ENOENT);
1033 if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1034 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1035 av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1037 return AVERROR_PATCHWELCOME;
1040 if (hwa->priv_data_size) {
1041 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
1042 if (!avctx->internal->hwaccel_priv_data)
1043 return AVERROR(ENOMEM);
1047 ret = hwa->init(avctx);
1049 av_freep(&avctx->internal->hwaccel_priv_data);
1054 avctx->hwaccel = hwa;
1059 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1061 const AVPixFmtDescriptor *desc;
1062 enum AVPixelFormat *choices;
1063 enum AVPixelFormat ret;
1066 while (fmt[n] != AV_PIX_FMT_NONE)
1070 avctx->sw_pix_fmt = fmt[n - 1];
1071 av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
1073 choices = av_malloc_array(n + 1, sizeof(*choices));
1075 return AV_PIX_FMT_NONE;
1077 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1080 if (avctx->hwaccel && avctx->hwaccel->uninit)
1081 avctx->hwaccel->uninit(avctx);
1082 av_freep(&avctx->internal->hwaccel_priv_data);
1083 avctx->hwaccel = NULL;
1085 ret = avctx->get_format(avctx, choices);
1087 desc = av_pix_fmt_desc_get(ret);
1089 ret = AV_PIX_FMT_NONE;
1093 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1095 #if FF_API_CAP_VDPAU
1096 if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
1100 if (!setup_hwaccel(avctx, ret, desc->name))
1103 /* Remove failed hwaccel from choices */
1104 for (n = 0; choices[n] != ret; n++)
1105 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1108 choices[n] = choices[n + 1];
1109 while (choices[n++] != AV_PIX_FMT_NONE);
1116 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1117 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1118 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1119 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1120 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1122 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
1124 return codec->properties;
1127 int av_codec_get_max_lowres(const AVCodec *codec)
1129 return codec->max_lowres;
1132 static void get_subtitle_defaults(AVSubtitle *sub)
1134 memset(sub, 0, sizeof(*sub));
1135 sub->pts = AV_NOPTS_VALUE;
1138 static int64_t get_bit_rate(AVCodecContext *ctx)
1141 int bits_per_sample;
1143 switch (ctx->codec_type) {
1144 case AVMEDIA_TYPE_VIDEO:
1145 case AVMEDIA_TYPE_DATA:
1146 case AVMEDIA_TYPE_SUBTITLE:
1147 case AVMEDIA_TYPE_ATTACHMENT:
1148 bit_rate = ctx->bit_rate;
1150 case AVMEDIA_TYPE_AUDIO:
1151 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1152 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
1161 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1165 ff_unlock_avcodec(codec);
1167 ret = avcodec_open2(avctx, codec, options);
1169 ff_lock_avcodec(avctx, codec);
1173 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1176 AVDictionary *tmp = NULL;
1177 const AVPixFmtDescriptor *pixdesc;
1179 if (avcodec_is_open(avctx))
1182 if ((!codec && !avctx->codec)) {
1183 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1184 return AVERROR(EINVAL);
1186 if ((codec && avctx->codec && codec != avctx->codec)) {
1187 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1188 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1189 return AVERROR(EINVAL);
1192 codec = avctx->codec;
1194 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1195 return AVERROR(EINVAL);
1198 av_dict_copy(&tmp, *options, 0);
1200 ret = ff_lock_avcodec(avctx, codec);
1204 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1205 if (!avctx->internal) {
1206 ret = AVERROR(ENOMEM);
1210 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1211 if (!avctx->internal->pool) {
1212 ret = AVERROR(ENOMEM);
1216 avctx->internal->to_free = av_frame_alloc();
1217 if (!avctx->internal->to_free) {
1218 ret = AVERROR(ENOMEM);
1222 if (codec->priv_data_size > 0) {
1223 if (!avctx->priv_data) {
1224 avctx->priv_data = av_mallocz(codec->priv_data_size);
1225 if (!avctx->priv_data) {
1226 ret = AVERROR(ENOMEM);
1229 if (codec->priv_class) {
1230 *(const AVClass **)avctx->priv_data = codec->priv_class;
1231 av_opt_set_defaults(avctx->priv_data);
1234 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1237 avctx->priv_data = NULL;
1239 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1242 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1243 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
1244 ret = AVERROR(EINVAL);
1248 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
1249 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1250 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
1251 if (avctx->coded_width && avctx->coded_height)
1252 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1253 else if (avctx->width && avctx->height)
1254 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1259 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1260 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1261 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1262 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1263 ff_set_dimensions(avctx, 0, 0);
1266 if (avctx->width > 0 && avctx->height > 0) {
1267 if (av_image_check_sar(avctx->width, avctx->height,
1268 avctx->sample_aspect_ratio) < 0) {
1269 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1270 avctx->sample_aspect_ratio.num,
1271 avctx->sample_aspect_ratio.den);
1272 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1276 /* if the decoder init function was already called previously,
1277 * free the already allocated subtitle_header before overwriting it */
1278 if (av_codec_is_decoder(codec))
1279 av_freep(&avctx->subtitle_header);
1281 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1282 ret = AVERROR(EINVAL);
1286 avctx->codec = codec;
1287 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1288 avctx->codec_id == AV_CODEC_ID_NONE) {
1289 avctx->codec_type = codec->type;
1290 avctx->codec_id = codec->id;
1292 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1293 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1294 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1295 ret = AVERROR(EINVAL);
1298 avctx->frame_number = 0;
1299 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1301 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
1302 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1303 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1305 av_log(avctx, AV_LOG_ERROR,
1306 "The %s '%s' is experimental but experimental codecs are not enabled, "
1307 "add '-strict %d' if you want to use it.\n",
1308 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1309 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1310 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
1311 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1312 codec_string, codec2->name);
1313 ret = AVERROR_EXPERIMENTAL;
1317 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1318 (!avctx->time_base.num || !avctx->time_base.den)) {
1319 avctx->time_base.num = 1;
1320 avctx->time_base.den = avctx->sample_rate;
1324 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1326 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
1327 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
1328 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1329 ff_lock_avcodec(avctx, codec);
1335 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1336 ret = ff_thread_init(avctx);
1341 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
1342 avctx->thread_count = 1;
1344 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1345 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1346 avctx->codec->max_lowres);
1347 ret = AVERROR(EINVAL);
1352 if (avctx->debug_mv)
1353 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1354 "see the codecview filter instead.\n");
1357 if (av_codec_is_encoder(avctx->codec)) {
1359 #if FF_API_CODED_FRAME
1360 FF_DISABLE_DEPRECATION_WARNINGS
1361 avctx->coded_frame = av_frame_alloc();
1362 if (!avctx->coded_frame) {
1363 ret = AVERROR(ENOMEM);
1366 FF_ENABLE_DEPRECATION_WARNINGS
1368 if (avctx->codec->sample_fmts) {
1369 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1370 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1372 if (avctx->channels == 1 &&
1373 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1374 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1375 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1379 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1381 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1382 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1383 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1384 ret = AVERROR(EINVAL);
1388 if (avctx->codec->pix_fmts) {
1389 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1390 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1392 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1393 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1394 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1396 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1397 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1398 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1399 ret = AVERROR(EINVAL);
1402 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1403 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1404 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1405 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1406 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1407 avctx->color_range = AVCOL_RANGE_JPEG;
1409 if (avctx->codec->supported_samplerates) {
1410 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1411 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1413 if (avctx->codec->supported_samplerates[i] == 0) {
1414 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1415 avctx->sample_rate);
1416 ret = AVERROR(EINVAL);
1420 if (avctx->sample_rate < 0) {
1421 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1422 avctx->sample_rate);
1423 ret = AVERROR(EINVAL);
1426 if (avctx->codec->channel_layouts) {
1427 if (!avctx->channel_layout) {
1428 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1430 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1431 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1433 if (avctx->codec->channel_layouts[i] == 0) {
1435 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1436 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1437 ret = AVERROR(EINVAL);
1442 if (avctx->channel_layout && avctx->channels) {
1443 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1444 if (channels != avctx->channels) {
1446 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1447 av_log(avctx, AV_LOG_ERROR,
1448 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1449 buf, channels, avctx->channels);
1450 ret = AVERROR(EINVAL);
1453 } else if (avctx->channel_layout) {
1454 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1456 if (avctx->channels < 0) {
1457 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
1459 ret = AVERROR(EINVAL);
1462 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1463 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
1464 if ( avctx->bits_per_raw_sample < 0
1465 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
1466 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
1467 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
1468 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
1470 if (avctx->width <= 0 || avctx->height <= 0) {
1471 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1472 ret = AVERROR(EINVAL);
1476 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1477 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1478 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", (int64_t)avctx->bit_rate, (int64_t)avctx->bit_rate);
1481 if (!avctx->rc_initial_buffer_occupancy)
1482 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1484 if (avctx->ticks_per_frame && avctx->time_base.num &&
1485 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
1486 av_log(avctx, AV_LOG_ERROR,
1487 "ticks_per_frame %d too large for the timebase %d/%d.",
1488 avctx->ticks_per_frame,
1489 avctx->time_base.num,
1490 avctx->time_base.den);
1494 if (avctx->hw_frames_ctx) {
1495 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1496 if (frames_ctx->format != avctx->pix_fmt) {
1497 av_log(avctx, AV_LOG_ERROR,
1498 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
1499 ret = AVERROR(EINVAL);
1505 avctx->pts_correction_num_faulty_pts =
1506 avctx->pts_correction_num_faulty_dts = 0;
1507 avctx->pts_correction_last_pts =
1508 avctx->pts_correction_last_dts = INT64_MIN;
1510 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1511 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1512 av_log(avctx, AV_LOG_WARNING,
1513 "gray decoding requested but not enabled at configuration time\n");
1515 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1516 || avctx->internal->frame_thread_encoder)) {
1517 ret = avctx->codec->init(avctx);
1525 #if FF_API_AUDIOENC_DELAY
1526 if (av_codec_is_encoder(avctx->codec))
1527 avctx->delay = avctx->initial_padding;
1530 if (av_codec_is_decoder(avctx->codec)) {
1531 if (!avctx->bit_rate)
1532 avctx->bit_rate = get_bit_rate(avctx);
1533 /* validate channel layout from the decoder */
1534 if (avctx->channel_layout) {
1535 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1536 if (!avctx->channels)
1537 avctx->channels = channels;
1538 else if (channels != avctx->channels) {
1540 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1541 av_log(avctx, AV_LOG_WARNING,
1542 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1543 "ignoring specified channel layout\n",
1544 buf, channels, avctx->channels);
1545 avctx->channel_layout = 0;
1548 if (avctx->channels && avctx->channels < 0 ||
1549 avctx->channels > FF_SANE_NB_CHANNELS) {
1550 ret = AVERROR(EINVAL);
1553 if (avctx->sub_charenc) {
1554 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1555 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1556 "supported with subtitles codecs\n");
1557 ret = AVERROR(EINVAL);
1559 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1560 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1561 "subtitles character encoding will be ignored\n",
1562 avctx->codec_descriptor->name);
1563 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1565 /* input character encoding is set for a text based subtitle
1566 * codec at this point */
1567 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1568 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1570 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1572 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1573 if (cd == (iconv_t)-1) {
1574 ret = AVERROR(errno);
1575 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1576 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1581 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1582 "conversion needs a libavcodec built with iconv support "
1583 "for this codec\n");
1584 ret = AVERROR(ENOSYS);
1591 #if FF_API_AVCTX_TIMEBASE
1592 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1593 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1596 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1597 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1601 ff_unlock_avcodec(codec);
1603 av_dict_free(options);
1610 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1611 avctx->codec->close(avctx);
1613 if (codec->priv_class && codec->priv_data_size)
1614 av_opt_free(avctx->priv_data);
1617 #if FF_API_CODED_FRAME
1618 FF_DISABLE_DEPRECATION_WARNINGS
1619 av_frame_free(&avctx->coded_frame);
1620 FF_ENABLE_DEPRECATION_WARNINGS
1624 av_freep(&avctx->priv_data);
1625 if (avctx->internal) {
1626 av_frame_free(&avctx->internal->to_free);
1627 av_freep(&avctx->internal->pool);
1629 av_freep(&avctx->internal);
1630 avctx->codec = NULL;
1634 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1636 if (avpkt->size < 0) {
1637 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1638 return AVERROR(EINVAL);
1640 if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
1641 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1642 size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1643 return AVERROR(EINVAL);
1646 if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1647 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1648 if (!avpkt->data || avpkt->size < size) {
1649 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1650 avpkt->data = avctx->internal->byte_buffer;
1651 avpkt->size = avctx->internal->byte_buffer_size;
1656 AVBufferRef *buf = avpkt->buf;
1658 if (avpkt->size < size) {
1659 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1660 return AVERROR(EINVAL);
1663 av_init_packet(avpkt);
1668 int ret = av_new_packet(avpkt, size);
1670 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1675 int ff_alloc_packet(AVPacket *avpkt, int size)
1677 return ff_alloc_packet2(NULL, avpkt, size, 0);
1681 * Pad last frame with silence.
1683 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1685 AVFrame *frame = NULL;
1688 if (!(frame = av_frame_alloc()))
1689 return AVERROR(ENOMEM);
1691 frame->format = src->format;
1692 frame->channel_layout = src->channel_layout;
1693 av_frame_set_channels(frame, av_frame_get_channels(src));
1694 frame->nb_samples = s->frame_size;
1695 ret = av_frame_get_buffer(frame, 32);
1699 ret = av_frame_copy_props(frame, src);
1703 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1704 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1706 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1707 frame->nb_samples - src->nb_samples,
1708 s->channels, s->sample_fmt)) < 0)
1716 av_frame_free(&frame);
1720 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1722 const AVFrame *frame,
1723 int *got_packet_ptr)
1725 AVFrame *extended_frame = NULL;
1726 AVFrame *padded_frame = NULL;
1728 AVPacket user_pkt = *avpkt;
1729 int needs_realloc = !user_pkt.data;
1731 *got_packet_ptr = 0;
1733 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1734 av_packet_unref(avpkt);
1735 av_init_packet(avpkt);
1739 /* ensure that extended_data is properly set */
1740 if (frame && !frame->extended_data) {
1741 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1742 avctx->channels > AV_NUM_DATA_POINTERS) {
1743 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1744 "with more than %d channels, but extended_data is not set.\n",
1745 AV_NUM_DATA_POINTERS);
1746 return AVERROR(EINVAL);
1748 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1750 extended_frame = av_frame_alloc();
1751 if (!extended_frame)
1752 return AVERROR(ENOMEM);
1754 memcpy(extended_frame, frame, sizeof(AVFrame));
1755 extended_frame->extended_data = extended_frame->data;
1756 frame = extended_frame;
1759 /* extract audio service type metadata */
1761 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1762 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1763 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1766 /* check for valid frame size */
1768 if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
1769 if (frame->nb_samples > avctx->frame_size) {
1770 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1771 ret = AVERROR(EINVAL);
1774 } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1775 if (frame->nb_samples < avctx->frame_size &&
1776 !avctx->internal->last_audio_frame) {
1777 ret = pad_last_frame(avctx, &padded_frame, frame);
1781 frame = padded_frame;
1782 avctx->internal->last_audio_frame = 1;
1785 if (frame->nb_samples != avctx->frame_size) {
1786 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1787 ret = AVERROR(EINVAL);
1793 av_assert0(avctx->codec->encode2);
1795 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1797 if (*got_packet_ptr) {
1798 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1799 if (avpkt->pts == AV_NOPTS_VALUE)
1800 avpkt->pts = frame->pts;
1801 if (!avpkt->duration)
1802 avpkt->duration = ff_samples_to_time_base(avctx,
1805 avpkt->dts = avpkt->pts;
1810 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1812 if (user_pkt.data) {
1813 if (user_pkt.size >= avpkt->size) {
1814 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1816 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1817 avpkt->size = user_pkt.size;
1820 avpkt->buf = user_pkt.buf;
1821 avpkt->data = user_pkt.data;
1823 if (av_dup_packet(avpkt) < 0) {
1824 ret = AVERROR(ENOMEM);
1830 if (needs_realloc && avpkt->data) {
1831 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1833 avpkt->data = avpkt->buf->data;
1836 avctx->frame_number++;
1839 if (ret < 0 || !*got_packet_ptr) {
1840 av_packet_unref(avpkt);
1841 av_init_packet(avpkt);
1845 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1846 * this needs to be moved to the encoders, but for now we can do it
1847 * here to simplify things */
1848 avpkt->flags |= AV_PKT_FLAG_KEY;
1851 av_frame_free(&padded_frame);
1852 av_free(extended_frame);
1854 #if FF_API_AUDIOENC_DELAY
1855 avctx->delay = avctx->initial_padding;
1861 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1863 const AVFrame *frame,
1864 int *got_packet_ptr)
1867 AVPacket user_pkt = *avpkt;
1868 int needs_realloc = !user_pkt.data;
1870 *got_packet_ptr = 0;
1872 if(CONFIG_FRAME_THREAD_ENCODER &&
1873 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1874 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1876 if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
1877 avctx->stats_out[0] = '\0';
1879 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1880 av_packet_unref(avpkt);
1881 av_init_packet(avpkt);
1886 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1887 return AVERROR(EINVAL);
1889 if (frame && frame->format == AV_PIX_FMT_NONE)
1890 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
1891 if (frame && (frame->width == 0 || frame->height == 0))
1892 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
1894 av_assert0(avctx->codec->encode2);
1896 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1897 av_assert0(ret <= 0);
1899 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1901 if (user_pkt.data) {
1902 if (user_pkt.size >= avpkt->size) {
1903 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1905 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1906 avpkt->size = user_pkt.size;
1909 avpkt->buf = user_pkt.buf;
1910 avpkt->data = user_pkt.data;
1912 if (av_dup_packet(avpkt) < 0) {
1913 ret = AVERROR(ENOMEM);
1919 if (!*got_packet_ptr)
1921 else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
1922 avpkt->pts = avpkt->dts = frame->pts;
1924 if (needs_realloc && avpkt->data) {
1925 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1927 avpkt->data = avpkt->buf->data;
1930 avctx->frame_number++;
1933 if (ret < 0 || !*got_packet_ptr)
1934 av_packet_unref(avpkt);
1940 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1941 const AVSubtitle *sub)
1944 if (sub->start_display_time) {
1945 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
1949 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
1950 avctx->frame_number++;
1955 * Attempt to guess proper monotonic timestamps for decoded video frames
1956 * which might have incorrect times. Input timestamps may wrap around, in
1957 * which case the output will as well.
1959 * @param pts the pts field of the decoded AVPacket, as passed through
1961 * @param dts the dts field of the decoded AVPacket
1962 * @return one of the input values, may be AV_NOPTS_VALUE
1964 static int64_t guess_correct_pts(AVCodecContext *ctx,
1965 int64_t reordered_pts, int64_t dts)
1967 int64_t pts = AV_NOPTS_VALUE;
1969 if (dts != AV_NOPTS_VALUE) {
1970 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
1971 ctx->pts_correction_last_dts = dts;
1972 } else if (reordered_pts != AV_NOPTS_VALUE)
1973 ctx->pts_correction_last_dts = reordered_pts;
1975 if (reordered_pts != AV_NOPTS_VALUE) {
1976 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
1977 ctx->pts_correction_last_pts = reordered_pts;
1978 } else if(dts != AV_NOPTS_VALUE)
1979 ctx->pts_correction_last_pts = dts;
1981 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
1982 && reordered_pts != AV_NOPTS_VALUE)
1983 pts = reordered_pts;
1990 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
1993 const uint8_t *data;
1997 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2001 if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
2002 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2003 "changes, but PARAM_CHANGE side data was sent to it.\n");
2004 return AVERROR(EINVAL);
2010 flags = bytestream_get_le32(&data);
2013 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2016 val = bytestream_get_le32(&data);
2017 if (val <= 0 || val > INT_MAX) {
2018 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2019 return AVERROR_INVALIDDATA;
2021 avctx->channels = val;
2024 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2027 avctx->channel_layout = bytestream_get_le64(&data);
2030 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2033 val = bytestream_get_le32(&data);
2034 if (val <= 0 || val > INT_MAX) {
2035 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2036 return AVERROR_INVALIDDATA;
2038 avctx->sample_rate = val;
2041 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2044 avctx->width = bytestream_get_le32(&data);
2045 avctx->height = bytestream_get_le32(&data);
2047 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2054 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2055 return AVERROR_INVALIDDATA;
2058 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2062 /* move the original frame to our backup */
2063 av_frame_unref(avci->to_free);
2064 av_frame_move_ref(avci->to_free, frame);
2066 /* now copy everything except the AVBufferRefs back
2067 * note that we make a COPY of the side data, so calling av_frame_free() on
2068 * the caller's frame will work properly */
2069 ret = av_frame_copy_props(frame, avci->to_free);
2073 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2074 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2075 if (avci->to_free->extended_data != avci->to_free->data) {
2076 int planes = av_frame_get_channels(avci->to_free);
2077 int size = planes * sizeof(*frame->extended_data);
2080 av_frame_unref(frame);
2084 frame->extended_data = av_malloc(size);
2085 if (!frame->extended_data) {
2086 av_frame_unref(frame);
2087 return AVERROR(ENOMEM);
2089 memcpy(frame->extended_data, avci->to_free->extended_data,
2092 frame->extended_data = frame->data;
2094 frame->format = avci->to_free->format;
2095 frame->width = avci->to_free->width;
2096 frame->height = avci->to_free->height;
2097 frame->channel_layout = avci->to_free->channel_layout;
2098 frame->nb_samples = avci->to_free->nb_samples;
2099 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2104 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2105 int *got_picture_ptr,
2106 const AVPacket *avpkt)
2108 AVCodecInternal *avci = avctx->internal;
2110 // copy to ensure we do not change avpkt
2111 AVPacket tmp = *avpkt;
2114 return AVERROR(EINVAL);
2115 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2116 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2117 return AVERROR(EINVAL);
2120 *got_picture_ptr = 0;
2121 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2122 return AVERROR(EINVAL);
2124 av_frame_unref(picture);
2126 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2127 (avctx->active_thread_type & FF_THREAD_FRAME)) {
2128 int did_split = av_packet_split_side_data(&tmp);
2129 ret = apply_param_change(avctx, &tmp);
2131 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2132 if (avctx->err_recognition & AV_EF_EXPLODE)
2136 avctx->internal->pkt = &tmp;
2137 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2138 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2141 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2143 if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
2144 picture->pkt_dts = avpkt->dts;
2146 if(!avctx->has_b_frames){
2147 av_frame_set_pkt_pos(picture, avpkt->pos);
2149 //FIXME these should be under if(!avctx->has_b_frames)
2150 /* get_buffer is supposed to set frame parameters */
2151 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2152 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2153 if (!picture->width) picture->width = avctx->width;
2154 if (!picture->height) picture->height = avctx->height;
2155 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2160 emms_c(); //needed to avoid an emms_c() call before every return;
2162 avctx->internal->pkt = NULL;
2164 av_packet_free_side_data(&tmp);
2169 if (*got_picture_ptr) {
2170 if (!avctx->refcounted_frames) {
2171 int err = unrefcount_frame(avci, picture);
2176 avctx->frame_number++;
2177 av_frame_set_best_effort_timestamp(picture,
2178 guess_correct_pts(avctx,
2182 av_frame_unref(picture);
2186 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2187 * make sure it's set correctly */
2188 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2190 #if FF_API_AVCTX_TIMEBASE
2191 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2192 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2198 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2201 const AVPacket *avpkt)
2203 AVCodecInternal *avci = avctx->internal;
2208 if (!avpkt->data && avpkt->size) {
2209 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2210 return AVERROR(EINVAL);
2213 return AVERROR(EINVAL);
2214 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2215 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2216 return AVERROR(EINVAL);
2219 av_frame_unref(frame);
2221 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2224 uint32_t discard_padding = 0;
2225 uint8_t skip_reason = 0;
2226 uint8_t discard_reason = 0;
2227 // copy to ensure we do not change avpkt
2228 AVPacket tmp = *avpkt;
2229 int did_split = av_packet_split_side_data(&tmp);
2230 ret = apply_param_change(avctx, &tmp);
2232 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2233 if (avctx->err_recognition & AV_EF_EXPLODE)
2237 avctx->internal->pkt = &tmp;
2238 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2239 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2241 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2242 av_assert0(ret <= tmp.size);
2243 frame->pkt_dts = avpkt->dts;
2245 if (ret >= 0 && *got_frame_ptr) {
2246 avctx->frame_number++;
2247 av_frame_set_best_effort_timestamp(frame,
2248 guess_correct_pts(avctx,
2251 if (frame->format == AV_SAMPLE_FMT_NONE)
2252 frame->format = avctx->sample_fmt;
2253 if (!frame->channel_layout)
2254 frame->channel_layout = avctx->channel_layout;
2255 if (!av_frame_get_channels(frame))
2256 av_frame_set_channels(frame, avctx->channels);
2257 if (!frame->sample_rate)
2258 frame->sample_rate = avctx->sample_rate;
2261 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2262 if(side && side_size>=10) {
2263 avctx->internal->skip_samples = AV_RL32(side);
2264 discard_padding = AV_RL32(side + 4);
2265 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2266 avctx->internal->skip_samples, (int)discard_padding);
2267 skip_reason = AV_RL8(side + 8);
2268 discard_reason = AV_RL8(side + 9);
2270 if (avctx->internal->skip_samples && *got_frame_ptr &&
2271 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2272 if(frame->nb_samples <= avctx->internal->skip_samples){
2274 avctx->internal->skip_samples -= frame->nb_samples;
2275 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2276 avctx->internal->skip_samples);
2278 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2279 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2280 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2281 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2282 (AVRational){1, avctx->sample_rate},
2283 avctx->pkt_timebase);
2284 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2285 frame->pkt_pts += diff_ts;
2286 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2287 frame->pkt_dts += diff_ts;
2288 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2289 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2291 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2293 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2294 avctx->internal->skip_samples, frame->nb_samples);
2295 frame->nb_samples -= avctx->internal->skip_samples;
2296 avctx->internal->skip_samples = 0;
2300 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2301 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2302 if (discard_padding == frame->nb_samples) {
2305 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2306 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2307 (AVRational){1, avctx->sample_rate},
2308 avctx->pkt_timebase);
2309 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2310 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2312 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2314 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2315 (int)discard_padding, frame->nb_samples);
2316 frame->nb_samples -= discard_padding;
2320 if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2321 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2323 AV_WL32(fside->data, avctx->internal->skip_samples);
2324 AV_WL32(fside->data + 4, discard_padding);
2325 AV_WL8(fside->data + 8, skip_reason);
2326 AV_WL8(fside->data + 9, discard_reason);
2327 avctx->internal->skip_samples = 0;
2331 avctx->internal->pkt = NULL;
2333 av_packet_free_side_data(&tmp);
2338 if (ret >= 0 && *got_frame_ptr) {
2339 if (!avctx->refcounted_frames) {
2340 int err = unrefcount_frame(avci, frame);
2345 av_frame_unref(frame);
2351 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2352 static int recode_subtitle(AVCodecContext *avctx,
2353 AVPacket *outpkt, const AVPacket *inpkt)
2356 iconv_t cd = (iconv_t)-1;
2363 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2367 cd = iconv_open("UTF-8", avctx->sub_charenc);
2368 av_assert0(cd != (iconv_t)-1);
2373 if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2374 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2375 ret = AVERROR(ENOMEM);
2379 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2382 outpkt->buf = tmp.buf;
2383 outpkt->data = tmp.data;
2384 outpkt->size = tmp.size;
2385 outb = outpkt->data;
2386 outl = outpkt->size;
2388 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2389 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2390 outl >= outpkt->size || inl != 0) {
2391 ret = FFMIN(AVERROR(errno), -1);
2392 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2393 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2394 av_packet_unref(&tmp);
2397 outpkt->size -= outl;
2398 memset(outpkt->data + outpkt->size, 0, outl);
2401 if (cd != (iconv_t)-1)
2405 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2406 return AVERROR(EINVAL);
2410 static int utf8_check(const uint8_t *str)
2412 const uint8_t *byte;
2413 uint32_t codepoint, min;
2417 GET_UTF8(codepoint, *(byte++), return 0;);
2418 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2419 1 << (5 * (byte - str) - 4);
2420 if (codepoint < min || codepoint >= 0x110000 ||
2421 codepoint == 0xFFFE /* BOM */ ||
2422 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2429 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2435 if (!avpkt->data && avpkt->size) {
2436 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2437 return AVERROR(EINVAL);
2440 return AVERROR(EINVAL);
2441 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2442 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2443 return AVERROR(EINVAL);
2447 get_subtitle_defaults(sub);
2449 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2450 AVPacket pkt_recoded;
2451 AVPacket tmp = *avpkt;
2452 int did_split = av_packet_split_side_data(&tmp);
2453 //apply_param_change(avctx, &tmp);
2456 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2458 * If the side data is smaller than the buffer padding size, the
2459 * remaining bytes should have already been filled with zeros by the
2460 * original packet allocation anyway. */
2461 memset(tmp.data + tmp.size, 0,
2462 FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2466 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2470 avctx->internal->pkt = &pkt_recoded;
2472 if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
2473 sub->pts = av_rescale_q(avpkt->pts,
2474 avctx->pkt_timebase, AV_TIME_BASE_Q);
2475 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2476 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2477 !!*got_sub_ptr >= !!sub->num_rects);
2479 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2480 avctx->pkt_timebase.num) {
2481 AVRational ms = { 1, 1000 };
2482 sub->end_display_time = av_rescale_q(avpkt->duration,
2483 avctx->pkt_timebase, ms);
2486 for (i = 0; i < sub->num_rects; i++) {
2487 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2488 av_log(avctx, AV_LOG_ERROR,
2489 "Invalid UTF-8 in decoded subtitles text; "
2490 "maybe missing -sub_charenc option\n");
2491 avsubtitle_free(sub);
2492 return AVERROR_INVALIDDATA;
2496 if (tmp.data != pkt_recoded.data) { // did we recode?
2497 /* prevent from destroying side data from original packet */
2498 pkt_recoded.side_data = NULL;
2499 pkt_recoded.side_data_elems = 0;
2501 av_packet_unref(&pkt_recoded);
2503 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2505 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2507 avctx->internal->pkt = NULL;
2511 av_packet_free_side_data(&tmp);
2517 avctx->frame_number++;
2523 void avsubtitle_free(AVSubtitle *sub)
2527 for (i = 0; i < sub->num_rects; i++) {
2528 av_freep(&sub->rects[i]->data[0]);
2529 av_freep(&sub->rects[i]->data[1]);
2530 av_freep(&sub->rects[i]->data[2]);
2531 av_freep(&sub->rects[i]->data[3]);
2532 av_freep(&sub->rects[i]->text);
2533 av_freep(&sub->rects[i]->ass);
2534 av_freep(&sub->rects[i]);
2537 av_freep(&sub->rects);
2539 memset(sub, 0, sizeof(AVSubtitle));
2542 av_cold int avcodec_close(AVCodecContext *avctx)
2549 if (avcodec_is_open(avctx)) {
2550 FramePool *pool = avctx->internal->pool;
2551 if (CONFIG_FRAME_THREAD_ENCODER &&
2552 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2553 ff_frame_thread_encoder_free(avctx);
2555 if (HAVE_THREADS && avctx->internal->thread_ctx)
2556 ff_thread_free(avctx);
2557 if (avctx->codec && avctx->codec->close)
2558 avctx->codec->close(avctx);
2559 avctx->internal->byte_buffer_size = 0;
2560 av_freep(&avctx->internal->byte_buffer);
2561 av_frame_free(&avctx->internal->to_free);
2562 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2563 av_buffer_pool_uninit(&pool->pools[i]);
2564 av_freep(&avctx->internal->pool);
2566 if (avctx->hwaccel && avctx->hwaccel->uninit)
2567 avctx->hwaccel->uninit(avctx);
2568 av_freep(&avctx->internal->hwaccel_priv_data);
2570 av_freep(&avctx->internal);
2573 for (i = 0; i < avctx->nb_coded_side_data; i++)
2574 av_freep(&avctx->coded_side_data[i].data);
2575 av_freep(&avctx->coded_side_data);
2576 avctx->nb_coded_side_data = 0;
2578 av_buffer_unref(&avctx->hw_frames_ctx);
2580 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2581 av_opt_free(avctx->priv_data);
2583 av_freep(&avctx->priv_data);
2584 if (av_codec_is_encoder(avctx->codec)) {
2585 av_freep(&avctx->extradata);
2586 #if FF_API_CODED_FRAME
2587 FF_DISABLE_DEPRECATION_WARNINGS
2588 av_frame_free(&avctx->coded_frame);
2589 FF_ENABLE_DEPRECATION_WARNINGS
2592 avctx->codec = NULL;
2593 avctx->active_thread_type = 0;
2598 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2601 //This is for future deprecatec codec ids, its empty since
2602 //last major bump but will fill up again over time, please don't remove it
2603 default : return id;
2607 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2609 AVCodec *p, *experimental = NULL;
2611 id= remap_deprecated_codec_id(id);
2613 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2615 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
2622 return experimental;
2625 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2627 return find_encdec(id, 1);
2630 AVCodec *avcodec_find_encoder_by_name(const char *name)
2637 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2644 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2646 return find_encdec(id, 0);
2649 AVCodec *avcodec_find_decoder_by_name(const char *name)
2656 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2663 const char *avcodec_get_name(enum AVCodecID id)
2665 const AVCodecDescriptor *cd;
2668 if (id == AV_CODEC_ID_NONE)
2670 cd = avcodec_descriptor_get(id);
2673 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2674 codec = avcodec_find_decoder(id);
2677 codec = avcodec_find_encoder(id);
2680 return "unknown_codec";
2683 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
2685 int i, len, ret = 0;
2687 #define TAG_PRINT(x) \
2688 (((x) >= '0' && (x) <= '9') || \
2689 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
2690 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
2692 for (i = 0; i < 4; i++) {
2693 len = snprintf(buf, buf_size,
2694 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
2696 buf_size = buf_size > len ? buf_size - len : 0;
2703 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
2705 const char *codec_type;
2706 const char *codec_name;
2707 const char *profile = NULL;
2710 AVRational display_aspect_ratio;
2711 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
2713 if (!buf || buf_size <= 0)
2715 codec_type = av_get_media_type_string(enc->codec_type);
2716 codec_name = avcodec_get_name(enc->codec_id);
2717 profile = avcodec_profile_name(enc->codec_id, enc->profile);
2719 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
2721 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
2723 if (enc->codec && strcmp(enc->codec->name, codec_name))
2724 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
2727 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
2728 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
2729 && av_log_get_level() >= AV_LOG_VERBOSE
2731 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2732 ", %d reference frame%s",
2733 enc->refs, enc->refs > 1 ? "s" : "");
2735 if (enc->codec_tag) {
2737 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
2738 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2739 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
2742 switch (enc->codec_type) {
2743 case AVMEDIA_TYPE_VIDEO:
2745 char detail[256] = "(";
2747 av_strlcat(buf, separator, buf_size);
2749 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2750 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
2751 av_get_pix_fmt_name(enc->pix_fmt));
2752 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
2753 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
2754 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
2755 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
2756 av_strlcatf(detail, sizeof(detail), "%s, ",
2757 av_color_range_name(enc->color_range));
2759 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
2760 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
2761 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
2762 if (enc->colorspace != (int)enc->color_primaries ||
2763 enc->colorspace != (int)enc->color_trc) {
2765 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
2766 av_color_space_name(enc->colorspace),
2767 av_color_primaries_name(enc->color_primaries),
2768 av_color_transfer_name(enc->color_trc));
2770 av_strlcatf(detail, sizeof(detail), "%s, ",
2771 av_get_colorspace_name(enc->colorspace));
2774 if (av_log_get_level() >= AV_LOG_DEBUG &&
2775 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
2776 av_strlcatf(detail, sizeof(detail), "%s, ",
2777 av_chroma_location_name(enc->chroma_sample_location));
2779 if (strlen(detail) > 1) {
2780 detail[strlen(detail) - 2] = 0;
2781 av_strlcatf(buf, buf_size, "%s)", detail);
2786 av_strlcat(buf, new_line ? separator : ", ", buf_size);
2788 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2790 enc->width, enc->height);
2792 if (av_log_get_level() >= AV_LOG_VERBOSE &&
2793 (enc->width != enc->coded_width ||
2794 enc->height != enc->coded_height))
2795 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2796 " (%dx%d)", enc->coded_width, enc->coded_height);
2798 if (enc->sample_aspect_ratio.num) {
2799 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
2800 enc->width * (int64_t)enc->sample_aspect_ratio.num,
2801 enc->height * (int64_t)enc->sample_aspect_ratio.den,
2803 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2804 " [SAR %d:%d DAR %d:%d]",
2805 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
2806 display_aspect_ratio.num, display_aspect_ratio.den);
2808 if (av_log_get_level() >= AV_LOG_DEBUG) {
2809 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2810 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2812 enc->time_base.num / g, enc->time_base.den / g);
2816 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2817 ", q=%d-%d", enc->qmin, enc->qmax);
2819 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
2820 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2821 ", Closed Captions");
2822 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
2823 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2827 case AVMEDIA_TYPE_AUDIO:
2828 av_strlcat(buf, separator, buf_size);
2830 if (enc->sample_rate) {
2831 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2832 "%d Hz, ", enc->sample_rate);
2834 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
2835 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
2836 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2837 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
2839 if ( enc->bits_per_raw_sample > 0
2840 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
2841 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2842 " (%d bit)", enc->bits_per_raw_sample);
2844 case AVMEDIA_TYPE_DATA:
2845 if (av_log_get_level() >= AV_LOG_DEBUG) {
2846 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2848 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2850 enc->time_base.num / g, enc->time_base.den / g);
2853 case AVMEDIA_TYPE_SUBTITLE:
2855 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2856 ", %dx%d", enc->width, enc->height);
2862 if (enc->flags & AV_CODEC_FLAG_PASS1)
2863 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2865 if (enc->flags & AV_CODEC_FLAG_PASS2)
2866 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2869 bitrate = get_bit_rate(enc);
2871 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2872 ", %"PRId64" kb/s", bitrate / 1000);
2873 } else if (enc->rc_max_rate > 0) {
2874 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2875 ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000);
2879 const char *av_get_profile_name(const AVCodec *codec, int profile)
2882 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
2885 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
2886 if (p->profile == profile)
2892 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
2894 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
2897 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
2900 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
2901 if (p->profile == profile)
2907 unsigned avcodec_version(void)
2909 // av_assert0(AV_CODEC_ID_V410==164);
2910 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
2911 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
2912 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
2913 av_assert0(AV_CODEC_ID_SRT==94216);
2914 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
2916 return LIBAVCODEC_VERSION_INT;
2919 const char *avcodec_configuration(void)
2921 return FFMPEG_CONFIGURATION;
2924 const char *avcodec_license(void)
2926 #define LICENSE_PREFIX "libavcodec license: "
2927 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
2930 void avcodec_flush_buffers(AVCodecContext *avctx)
2932 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2933 ff_thread_flush(avctx);
2934 else if (avctx->codec->flush)
2935 avctx->codec->flush(avctx);
2937 avctx->pts_correction_last_pts =
2938 avctx->pts_correction_last_dts = INT64_MIN;
2940 if (!avctx->refcounted_frames)
2941 av_frame_unref(avctx->internal->to_free);
2944 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
2947 case AV_CODEC_ID_8SVX_EXP:
2948 case AV_CODEC_ID_8SVX_FIB:
2949 case AV_CODEC_ID_ADPCM_CT:
2950 case AV_CODEC_ID_ADPCM_IMA_APC:
2951 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
2952 case AV_CODEC_ID_ADPCM_IMA_OKI:
2953 case AV_CODEC_ID_ADPCM_IMA_WS:
2954 case AV_CODEC_ID_ADPCM_G722:
2955 case AV_CODEC_ID_ADPCM_YAMAHA:
2956 case AV_CODEC_ID_ADPCM_AICA:
2958 case AV_CODEC_ID_DSD_LSBF:
2959 case AV_CODEC_ID_DSD_MSBF:
2960 case AV_CODEC_ID_DSD_LSBF_PLANAR:
2961 case AV_CODEC_ID_DSD_MSBF_PLANAR:
2962 case AV_CODEC_ID_PCM_ALAW:
2963 case AV_CODEC_ID_PCM_MULAW:
2964 case AV_CODEC_ID_PCM_S8:
2965 case AV_CODEC_ID_PCM_S8_PLANAR:
2966 case AV_CODEC_ID_PCM_U8:
2967 case AV_CODEC_ID_PCM_ZORK:
2968 case AV_CODEC_ID_SDX2_DPCM:
2970 case AV_CODEC_ID_PCM_S16BE:
2971 case AV_CODEC_ID_PCM_S16BE_PLANAR:
2972 case AV_CODEC_ID_PCM_S16LE:
2973 case AV_CODEC_ID_PCM_S16LE_PLANAR:
2974 case AV_CODEC_ID_PCM_U16BE:
2975 case AV_CODEC_ID_PCM_U16LE:
2977 case AV_CODEC_ID_PCM_S24DAUD:
2978 case AV_CODEC_ID_PCM_S24BE:
2979 case AV_CODEC_ID_PCM_S24LE:
2980 case AV_CODEC_ID_PCM_S24LE_PLANAR:
2981 case AV_CODEC_ID_PCM_U24BE:
2982 case AV_CODEC_ID_PCM_U24LE:
2984 case AV_CODEC_ID_PCM_S32BE:
2985 case AV_CODEC_ID_PCM_S32LE:
2986 case AV_CODEC_ID_PCM_S32LE_PLANAR:
2987 case AV_CODEC_ID_PCM_U32BE:
2988 case AV_CODEC_ID_PCM_U32LE:
2989 case AV_CODEC_ID_PCM_F32BE:
2990 case AV_CODEC_ID_PCM_F32LE:
2992 case AV_CODEC_ID_PCM_F64BE:
2993 case AV_CODEC_ID_PCM_F64LE:
3000 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3002 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3003 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3004 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3005 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3006 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3007 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3008 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3009 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3010 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3011 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3012 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3014 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3015 return AV_CODEC_ID_NONE;
3016 if (be < 0 || be > 1)
3018 return map[fmt][be];
3021 int av_get_bits_per_sample(enum AVCodecID codec_id)
3024 case AV_CODEC_ID_ADPCM_SBPRO_2:
3026 case AV_CODEC_ID_ADPCM_SBPRO_3:
3028 case AV_CODEC_ID_ADPCM_SBPRO_4:
3029 case AV_CODEC_ID_ADPCM_IMA_WAV:
3030 case AV_CODEC_ID_ADPCM_IMA_QT:
3031 case AV_CODEC_ID_ADPCM_SWF:
3032 case AV_CODEC_ID_ADPCM_MS:
3035 return av_get_exact_bits_per_sample(codec_id);
3039 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3041 int id, sr, ch, ba, tag, bps;
3043 id = avctx->codec_id;
3044 sr = avctx->sample_rate;
3045 ch = avctx->channels;
3046 ba = avctx->block_align;
3047 tag = avctx->codec_tag;
3048 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3050 /* codecs with an exact constant bits per sample */
3051 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3052 return (frame_bytes * 8LL) / (bps * ch);
3053 bps = avctx->bits_per_coded_sample;
3055 /* codecs with a fixed packet duration */
3057 case AV_CODEC_ID_ADPCM_ADX: return 32;
3058 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3059 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3060 case AV_CODEC_ID_AMR_NB:
3061 case AV_CODEC_ID_EVRC:
3062 case AV_CODEC_ID_GSM:
3063 case AV_CODEC_ID_QCELP:
3064 case AV_CODEC_ID_RA_288: return 160;
3065 case AV_CODEC_ID_AMR_WB:
3066 case AV_CODEC_ID_GSM_MS: return 320;
3067 case AV_CODEC_ID_MP1: return 384;
3068 case AV_CODEC_ID_ATRAC1: return 512;
3069 case AV_CODEC_ID_ATRAC3: return 1024;
3070 case AV_CODEC_ID_ATRAC3P: return 2048;
3071 case AV_CODEC_ID_MP2:
3072 case AV_CODEC_ID_MUSEPACK7: return 1152;
3073 case AV_CODEC_ID_AC3: return 1536;
3077 /* calc from sample rate */
3078 if (id == AV_CODEC_ID_TTA)
3079 return 256 * sr / 245;
3082 /* calc from sample rate and channels */
3083 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3084 return (480 << (sr / 22050)) / ch;
3089 /* calc from block_align */
3090 if (id == AV_CODEC_ID_SIPR) {
3092 case 20: return 160;
3093 case 19: return 144;
3094 case 29: return 288;
3095 case 37: return 480;
3097 } else if (id == AV_CODEC_ID_ILBC) {
3099 case 38: return 160;
3100 case 50: return 240;
3105 if (frame_bytes > 0) {
3106 /* calc from frame_bytes only */
3107 if (id == AV_CODEC_ID_TRUESPEECH)
3108 return 240 * (frame_bytes / 32);
3109 if (id == AV_CODEC_ID_NELLYMOSER)
3110 return 256 * (frame_bytes / 64);
3111 if (id == AV_CODEC_ID_RA_144)
3112 return 160 * (frame_bytes / 20);
3113 if (id == AV_CODEC_ID_G723_1)
3114 return 240 * (frame_bytes / 24);
3117 /* calc from frame_bytes and bits_per_coded_sample */
3118 if (id == AV_CODEC_ID_ADPCM_G726)
3119 return frame_bytes * 8 / bps;
3122 if (ch > 0 && ch < INT_MAX/16) {
3123 /* calc from frame_bytes and channels */
3125 case AV_CODEC_ID_ADPCM_AFC:
3126 return frame_bytes / (9 * ch) * 16;
3127 case AV_CODEC_ID_ADPCM_PSX:
3128 case AV_CODEC_ID_ADPCM_DTK:
3129 return frame_bytes / (16 * ch) * 28;
3130 case AV_CODEC_ID_ADPCM_4XM:
3131 case AV_CODEC_ID_ADPCM_IMA_ISS:
3132 return (frame_bytes - 4 * ch) * 2 / ch;
3133 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3134 return (frame_bytes - 4) * 2 / ch;
3135 case AV_CODEC_ID_ADPCM_IMA_AMV:
3136 return (frame_bytes - 8) * 2 / ch;
3137 case AV_CODEC_ID_ADPCM_THP:
3138 case AV_CODEC_ID_ADPCM_THP_LE:
3139 if (avctx->extradata)
3140 return frame_bytes * 14 / (8 * ch);
3142 case AV_CODEC_ID_ADPCM_XA:
3143 return (frame_bytes / 128) * 224 / ch;
3144 case AV_CODEC_ID_INTERPLAY_DPCM:
3145 return (frame_bytes - 6 - ch) / ch;
3146 case AV_CODEC_ID_ROQ_DPCM:
3147 return (frame_bytes - 8) / ch;
3148 case AV_CODEC_ID_XAN_DPCM:
3149 return (frame_bytes - 2 * ch) / ch;
3150 case AV_CODEC_ID_MACE3:
3151 return 3 * frame_bytes / ch;
3152 case AV_CODEC_ID_MACE6:
3153 return 6 * frame_bytes / ch;
3154 case AV_CODEC_ID_PCM_LXF:
3155 return 2 * (frame_bytes / (5 * ch));
3156 case AV_CODEC_ID_IAC:
3157 case AV_CODEC_ID_IMC:
3158 return 4 * frame_bytes / ch;
3162 /* calc from frame_bytes, channels, and codec_tag */
3163 if (id == AV_CODEC_ID_SOL_DPCM) {
3165 return frame_bytes / ch;
3167 return frame_bytes * 2 / ch;
3172 /* calc from frame_bytes, channels, and block_align */
3173 int blocks = frame_bytes / ba;
3174 switch (avctx->codec_id) {
3175 case AV_CODEC_ID_ADPCM_IMA_WAV:
3176 if (bps < 2 || bps > 5)
3178 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3179 case AV_CODEC_ID_ADPCM_IMA_DK3:
3180 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3181 case AV_CODEC_ID_ADPCM_IMA_DK4:
3182 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3183 case AV_CODEC_ID_ADPCM_IMA_RAD:
3184 return blocks * ((ba - 4 * ch) * 2 / ch);
3185 case AV_CODEC_ID_ADPCM_MS:
3186 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3191 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3192 switch (avctx->codec_id) {
3193 case AV_CODEC_ID_PCM_DVD:
3196 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3197 case AV_CODEC_ID_PCM_BLURAY:
3200 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3201 case AV_CODEC_ID_S302M:
3202 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3208 /* Fall back on using frame_size */
3209 if (avctx->frame_size > 1 && frame_bytes)
3210 return avctx->frame_size;
3212 //For WMA we currently have no other means to calculate duration thus we
3213 //do it here by assuming CBR, which is true for all known cases.
3214 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3215 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3216 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3223 int ff_thread_init(AVCodecContext *s)
3230 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3244 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3247 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3251 #if FF_API_MISSING_SAMPLE
3252 FF_DISABLE_DEPRECATION_WARNINGS
3253 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3255 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3256 "version to the newest one from Git. If the problem still "
3257 "occurs, it means that your file has a feature which has not "
3258 "been implemented.\n", feature);
3260 av_log_ask_for_sample(avc, NULL);
3263 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3265 va_list argument_list;
3267 va_start(argument_list, msg);
3270 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3271 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3272 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3273 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3275 va_end(argument_list);
3277 FF_ENABLE_DEPRECATION_WARNINGS
3278 #endif /* FF_API_MISSING_SAMPLE */
3280 static AVHWAccel *first_hwaccel = NULL;
3281 static AVHWAccel **last_hwaccel = &first_hwaccel;
3283 void av_register_hwaccel(AVHWAccel *hwaccel)
3285 AVHWAccel **p = last_hwaccel;
3286 hwaccel->next = NULL;
3287 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3289 last_hwaccel = &hwaccel->next;
3292 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3294 return hwaccel ? hwaccel->next : first_hwaccel;
3297 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3300 // There is no good way to rollback a failure to destroy the
3301 // mutex, so we ignore failures.
3302 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3303 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3306 avformat_mutex = NULL;
3310 void *new_codec_mutex = NULL;
3311 void *new_avformat_mutex = NULL;
3313 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3314 return err > 0 ? AVERROR_UNKNOWN : err;
3316 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3317 // Ignore failures to destroy the newly created mutex.
3318 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3319 return err > 0 ? AVERROR_UNKNOWN : err;
3322 codec_mutex = new_codec_mutex;
3323 avformat_mutex = new_avformat_mutex;
3329 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3331 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3335 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3339 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) {
3340 av_log(log_ctx, AV_LOG_ERROR,
3341 "Insufficient thread locking. At least %d threads are "
3342 "calling avcodec_open2() at the same time right now.\n",
3343 entangled_thread_counter);
3345 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3346 ff_avcodec_locked = 1;
3347 ff_unlock_avcodec(codec);
3348 return AVERROR(EINVAL);
3350 av_assert0(!ff_avcodec_locked);
3351 ff_avcodec_locked = 1;
3355 int ff_unlock_avcodec(const AVCodec *codec)
3357 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3360 av_assert0(ff_avcodec_locked);
3361 ff_avcodec_locked = 0;
3362 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3364 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3371 int avpriv_lock_avformat(void)
3374 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3380 int avpriv_unlock_avformat(void)
3383 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3389 unsigned int avpriv_toupper4(unsigned int x)
3391 return av_toupper(x & 0xFF) +
3392 (av_toupper((x >> 8) & 0xFF) << 8) +
3393 (av_toupper((x >> 16) & 0xFF) << 16) +
3394 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3397 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3401 dst->owner = src->owner;
3403 ret = av_frame_ref(dst->f, src->f);
3407 av_assert0(!dst->progress);
3409 if (src->progress &&
3410 !(dst->progress = av_buffer_ref(src->progress))) {
3411 ff_thread_release_buffer(dst->owner, dst);
3412 return AVERROR(ENOMEM);
3420 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3422 return ff_get_format(avctx, fmt);
3425 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3428 return ff_get_buffer(avctx, f->f, flags);
3431 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3434 av_frame_unref(f->f);
3437 void ff_thread_finish_setup(AVCodecContext *avctx)
3441 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3445 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3449 int ff_thread_can_start_frame(AVCodecContext *avctx)
3454 int ff_alloc_entries(AVCodecContext *avctx, int count)
3459 void ff_reset_entries(AVCodecContext *avctx)
3463 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3467 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3473 int avcodec_is_open(AVCodecContext *s)
3475 return !!s->internal;
3478 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3483 ret = av_bprint_finalize(buf, &str);
3486 if (!av_bprint_is_complete(buf)) {
3488 return AVERROR(ENOMEM);
3491 avctx->extradata = str;
3492 /* Note: the string is NUL terminated (so extradata can be read as a
3493 * string), but the ending character is not accounted in the size (in
3494 * binary formats you are likely not supposed to mux that character). When
3495 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
3497 avctx->extradata_size = buf->len;
3501 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3503 uint32_t *av_restrict state)
3507 av_assert0(p <= end);
3511 for (i = 0; i < 3; i++) {
3512 uint32_t tmp = *state << 8;
3513 *state = tmp + *(p++);
3514 if (tmp == 0x100 || p == end)
3519 if (p[-1] > 1 ) p += 3;
3520 else if (p[-2] ) p += 2;
3521 else if (p[-3]|(p[-1]-1)) p++;
3528 p = FFMIN(p, end) - 4;
3529 *state = AV_RB32(p);
3534 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
3536 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
3541 *size = sizeof(*props);
3543 props->vbv_delay = UINT64_MAX;
3548 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
3550 AVPacketSideData *tmp;
3551 AVCPBProperties *props;
3554 props = av_cpb_properties_alloc(&size);
3558 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
3564 avctx->coded_side_data = tmp;
3565 avctx->nb_coded_side_data++;
3567 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
3568 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
3569 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;