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/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
45 #include "libavutil/opt.h"
47 #include "mpegvideo.h"
49 #include "frame_thread_encoder.h"
52 #include "bytestream.h"
65 #include "compat/w32pthreads.h"
67 #include "compat/os2threads.h"
70 #include "libavutil/ffversion.h"
71 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
73 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
74 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
76 void * volatile * mutex = arg;
84 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
86 return AVERROR(ENOMEM);
87 if ((err = pthread_mutex_init(tmp, NULL))) {
91 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
92 pthread_mutex_destroy(tmp);
97 if ((err = pthread_mutex_lock(*mutex)))
101 case AV_LOCK_RELEASE:
102 if ((err = pthread_mutex_unlock(*mutex)))
106 case AV_LOCK_DESTROY:
108 pthread_mutex_destroy(*mutex);
110 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
115 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
117 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
121 volatile int ff_avcodec_locked;
122 static int volatile entangled_thread_counter = 0;
123 static void *codec_mutex;
124 static void *avformat_mutex;
126 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
129 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
134 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
135 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
138 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
141 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
146 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
147 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
150 /* encoder management */
151 static AVCodec *first_avcodec = NULL;
152 static AVCodec **last_avcodec = &first_avcodec;
154 AVCodec *av_codec_next(const AVCodec *c)
159 return first_avcodec;
162 static av_cold void avcodec_init(void)
164 static int initialized = 0;
166 if (initialized != 0)
171 ff_me_cmp_init_static();
174 int av_codec_is_encoder(const AVCodec *codec)
176 return codec && (codec->encode_sub || codec->encode2);
179 int av_codec_is_decoder(const AVCodec *codec)
181 return codec && codec->decode;
184 av_cold void avcodec_register(AVCodec *codec)
191 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
193 last_avcodec = &codec->next;
195 if (codec->init_static_data)
196 codec->init_static_data(codec);
200 unsigned avcodec_get_edge_width(void)
206 #if FF_API_SET_DIMENSIONS
207 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
209 int ret = ff_set_dimensions(s, width, height);
211 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
216 int ff_set_dimensions(AVCodecContext *s, int width, int height)
218 int ret = av_image_check_size(width, height, 0, s);
223 s->coded_width = width;
224 s->coded_height = height;
225 s->width = FF_CEIL_RSHIFT(width, s->lowres);
226 s->height = FF_CEIL_RSHIFT(height, s->lowres);
231 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
233 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
236 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
238 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
241 avctx->sample_aspect_ratio = sar;
246 int ff_side_data_update_matrix_encoding(AVFrame *frame,
247 enum AVMatrixEncoding matrix_encoding)
249 AVFrameSideData *side_data;
250 enum AVMatrixEncoding *data;
252 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
254 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
255 sizeof(enum AVMatrixEncoding));
258 return AVERROR(ENOMEM);
260 data = (enum AVMatrixEncoding*)side_data->data;
261 *data = matrix_encoding;
266 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
267 int linesize_align[AV_NUM_DATA_POINTERS])
272 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
275 w_align = 1 << desc->log2_chroma_w;
276 h_align = 1 << desc->log2_chroma_h;
279 switch (s->pix_fmt) {
280 case AV_PIX_FMT_YUV420P:
281 case AV_PIX_FMT_YUYV422:
282 case AV_PIX_FMT_YVYU422:
283 case AV_PIX_FMT_UYVY422:
284 case AV_PIX_FMT_YUV422P:
285 case AV_PIX_FMT_YUV440P:
286 case AV_PIX_FMT_YUV444P:
287 case AV_PIX_FMT_GBRP:
288 case AV_PIX_FMT_GBRAP:
289 case AV_PIX_FMT_GRAY8:
290 case AV_PIX_FMT_GRAY16BE:
291 case AV_PIX_FMT_GRAY16LE:
292 case AV_PIX_FMT_YUVJ420P:
293 case AV_PIX_FMT_YUVJ422P:
294 case AV_PIX_FMT_YUVJ440P:
295 case AV_PIX_FMT_YUVJ444P:
296 case AV_PIX_FMT_YUVA420P:
297 case AV_PIX_FMT_YUVA422P:
298 case AV_PIX_FMT_YUVA444P:
299 case AV_PIX_FMT_YUV420P9LE:
300 case AV_PIX_FMT_YUV420P9BE:
301 case AV_PIX_FMT_YUV420P10LE:
302 case AV_PIX_FMT_YUV420P10BE:
303 case AV_PIX_FMT_YUV420P12LE:
304 case AV_PIX_FMT_YUV420P12BE:
305 case AV_PIX_FMT_YUV420P14LE:
306 case AV_PIX_FMT_YUV420P14BE:
307 case AV_PIX_FMT_YUV420P16LE:
308 case AV_PIX_FMT_YUV420P16BE:
309 case AV_PIX_FMT_YUVA420P9LE:
310 case AV_PIX_FMT_YUVA420P9BE:
311 case AV_PIX_FMT_YUVA420P10LE:
312 case AV_PIX_FMT_YUVA420P10BE:
313 case AV_PIX_FMT_YUVA420P16LE:
314 case AV_PIX_FMT_YUVA420P16BE:
315 case AV_PIX_FMT_YUV422P9LE:
316 case AV_PIX_FMT_YUV422P9BE:
317 case AV_PIX_FMT_YUV422P10LE:
318 case AV_PIX_FMT_YUV422P10BE:
319 case AV_PIX_FMT_YUV422P12LE:
320 case AV_PIX_FMT_YUV422P12BE:
321 case AV_PIX_FMT_YUV422P14LE:
322 case AV_PIX_FMT_YUV422P14BE:
323 case AV_PIX_FMT_YUV422P16LE:
324 case AV_PIX_FMT_YUV422P16BE:
325 case AV_PIX_FMT_YUVA422P9LE:
326 case AV_PIX_FMT_YUVA422P9BE:
327 case AV_PIX_FMT_YUVA422P10LE:
328 case AV_PIX_FMT_YUVA422P10BE:
329 case AV_PIX_FMT_YUVA422P16LE:
330 case AV_PIX_FMT_YUVA422P16BE:
331 case AV_PIX_FMT_YUV440P10LE:
332 case AV_PIX_FMT_YUV440P10BE:
333 case AV_PIX_FMT_YUV440P12LE:
334 case AV_PIX_FMT_YUV440P12BE:
335 case AV_PIX_FMT_YUV444P9LE:
336 case AV_PIX_FMT_YUV444P9BE:
337 case AV_PIX_FMT_YUV444P10LE:
338 case AV_PIX_FMT_YUV444P10BE:
339 case AV_PIX_FMT_YUV444P12LE:
340 case AV_PIX_FMT_YUV444P12BE:
341 case AV_PIX_FMT_YUV444P14LE:
342 case AV_PIX_FMT_YUV444P14BE:
343 case AV_PIX_FMT_YUV444P16LE:
344 case AV_PIX_FMT_YUV444P16BE:
345 case AV_PIX_FMT_YUVA444P9LE:
346 case AV_PIX_FMT_YUVA444P9BE:
347 case AV_PIX_FMT_YUVA444P10LE:
348 case AV_PIX_FMT_YUVA444P10BE:
349 case AV_PIX_FMT_YUVA444P16LE:
350 case AV_PIX_FMT_YUVA444P16BE:
351 case AV_PIX_FMT_GBRP9LE:
352 case AV_PIX_FMT_GBRP9BE:
353 case AV_PIX_FMT_GBRP10LE:
354 case AV_PIX_FMT_GBRP10BE:
355 case AV_PIX_FMT_GBRP12LE:
356 case AV_PIX_FMT_GBRP12BE:
357 case AV_PIX_FMT_GBRP14LE:
358 case AV_PIX_FMT_GBRP14BE:
359 case AV_PIX_FMT_GBRP16LE:
360 case AV_PIX_FMT_GBRP16BE:
361 w_align = 16; //FIXME assume 16 pixel per macroblock
362 h_align = 16 * 2; // interlaced needs 2 macroblocks height
364 case AV_PIX_FMT_YUV411P:
365 case AV_PIX_FMT_YUVJ411P:
366 case AV_PIX_FMT_UYYVYY411:
370 case AV_PIX_FMT_YUV410P:
371 if (s->codec_id == AV_CODEC_ID_SVQ1) {
376 case AV_PIX_FMT_RGB555:
377 if (s->codec_id == AV_CODEC_ID_RPZA) {
382 case AV_PIX_FMT_PAL8:
383 case AV_PIX_FMT_BGR8:
384 case AV_PIX_FMT_RGB8:
385 if (s->codec_id == AV_CODEC_ID_SMC ||
386 s->codec_id == AV_CODEC_ID_CINEPAK) {
390 if (s->codec_id == AV_CODEC_ID_JV) {
395 case AV_PIX_FMT_BGR24:
396 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
397 (s->codec_id == AV_CODEC_ID_ZLIB)) {
402 case AV_PIX_FMT_RGB24:
403 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
412 if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) {
413 w_align = FFMAX(w_align, 8);
416 *width = FFALIGN(*width, w_align);
417 *height = FFALIGN(*height, h_align);
418 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
419 // some of the optimized chroma MC reads one line too much
420 // which is also done in mpeg decoders with lowres > 0
423 // H.264 uses edge emulation for out of frame motion vectors, for this
424 // it requires a temporary area large enough to hold a 21x21 block,
425 // increasing witdth ensure that the temporary area is large enough,
426 // the next rounded up width is 32
427 *width = FFMAX(*width, 32);
430 for (i = 0; i < 4; i++)
431 linesize_align[i] = STRIDE_ALIGN;
434 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
436 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
437 int chroma_shift = desc->log2_chroma_w;
438 int linesize_align[AV_NUM_DATA_POINTERS];
441 avcodec_align_dimensions2(s, width, height, linesize_align);
442 align = FFMAX(linesize_align[0], linesize_align[3]);
443 linesize_align[1] <<= chroma_shift;
444 linesize_align[2] <<= chroma_shift;
445 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
446 *width = FFALIGN(*width, align);
449 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
451 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
452 return AVERROR(EINVAL);
455 *xpos = (pos&1) * 128;
456 *ypos = ((pos>>1)^(pos<4)) * 128;
461 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
465 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
466 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
469 return AVCHROMA_LOC_UNSPECIFIED;
472 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
473 enum AVSampleFormat sample_fmt, const uint8_t *buf,
474 int buf_size, int align)
476 int ch, planar, needed_size, ret = 0;
478 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
479 frame->nb_samples, sample_fmt,
481 if (buf_size < needed_size)
482 return AVERROR(EINVAL);
484 planar = av_sample_fmt_is_planar(sample_fmt);
485 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
486 if (!(frame->extended_data = av_mallocz_array(nb_channels,
487 sizeof(*frame->extended_data))))
488 return AVERROR(ENOMEM);
490 frame->extended_data = frame->data;
493 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
494 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
495 sample_fmt, align)) < 0) {
496 if (frame->extended_data != frame->data)
497 av_freep(&frame->extended_data);
500 if (frame->extended_data != frame->data) {
501 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
502 frame->data[ch] = frame->extended_data[ch];
508 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
510 FramePool *pool = avctx->internal->pool;
513 switch (avctx->codec_type) {
514 case AVMEDIA_TYPE_VIDEO: {
517 int w = frame->width;
518 int h = frame->height;
519 int tmpsize, unaligned;
521 if (pool->format == frame->format &&
522 pool->width == frame->width && pool->height == frame->height)
525 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
528 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
529 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
530 av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w);
531 // increase alignment of w for next try (rhs gives the lowest bit set in w)
535 for (i = 0; i < 4; i++)
536 unaligned |= picture.linesize[i] % pool->stride_align[i];
539 tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h,
540 NULL, picture.linesize);
544 for (i = 0; i < 3 && picture.data[i + 1]; i++)
545 size[i] = picture.data[i + 1] - picture.data[i];
546 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
548 for (i = 0; i < 4; i++) {
549 av_buffer_pool_uninit(&pool->pools[i]);
550 pool->linesize[i] = picture.linesize[i];
552 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
553 CONFIG_MEMORY_POISONING ?
556 if (!pool->pools[i]) {
557 ret = AVERROR(ENOMEM);
562 pool->format = frame->format;
563 pool->width = frame->width;
564 pool->height = frame->height;
568 case AVMEDIA_TYPE_AUDIO: {
569 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
570 int planar = av_sample_fmt_is_planar(frame->format);
571 int planes = planar ? ch : 1;
573 if (pool->format == frame->format && pool->planes == planes &&
574 pool->channels == ch && frame->nb_samples == pool->samples)
577 av_buffer_pool_uninit(&pool->pools[0]);
578 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
579 frame->nb_samples, frame->format, 0);
583 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
584 if (!pool->pools[0]) {
585 ret = AVERROR(ENOMEM);
589 pool->format = frame->format;
590 pool->planes = planes;
592 pool->samples = frame->nb_samples;
595 default: av_assert0(0);
599 for (i = 0; i < 4; i++)
600 av_buffer_pool_uninit(&pool->pools[i]);
602 pool->planes = pool->channels = pool->samples = 0;
603 pool->width = pool->height = 0;
607 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
609 FramePool *pool = avctx->internal->pool;
610 int planes = pool->planes;
613 frame->linesize[0] = pool->linesize[0];
615 if (planes > AV_NUM_DATA_POINTERS) {
616 frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
617 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
618 frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
619 sizeof(*frame->extended_buf));
620 if (!frame->extended_data || !frame->extended_buf) {
621 av_freep(&frame->extended_data);
622 av_freep(&frame->extended_buf);
623 return AVERROR(ENOMEM);
626 frame->extended_data = frame->data;
627 av_assert0(frame->nb_extended_buf == 0);
630 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
631 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
634 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
636 for (i = 0; i < frame->nb_extended_buf; i++) {
637 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
638 if (!frame->extended_buf[i])
640 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
643 if (avctx->debug & FF_DEBUG_BUFFERS)
644 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
648 av_frame_unref(frame);
649 return AVERROR(ENOMEM);
652 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
654 FramePool *pool = s->internal->pool;
658 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
662 memset(pic->data, 0, sizeof(pic->data));
663 pic->extended_data = pic->data;
665 for (i = 0; i < 4 && pool->pools[i]; i++) {
666 pic->linesize[i] = pool->linesize[i];
668 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
672 pic->data[i] = pic->buf[i]->data;
674 for (; i < AV_NUM_DATA_POINTERS; i++) {
676 pic->linesize[i] = 0;
678 if (pic->data[1] && !pic->data[2])
679 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
681 if (s->debug & FF_DEBUG_BUFFERS)
682 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
687 return AVERROR(ENOMEM);
690 void avpriv_color_frame(AVFrame *frame, const int c[4])
692 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
695 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
697 for (p = 0; p<desc->nb_components; p++) {
698 uint8_t *dst = frame->data[p];
699 int is_chroma = p == 1 || p == 2;
700 int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
701 int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
702 for (y = 0; y < height; y++) {
703 if (desc->comp[0].depth_minus1 >= 8) {
704 for (x = 0; x<bytes; x++)
705 ((uint16_t*)dst)[x] = c[p];
707 memset(dst, c[p], bytes);
708 dst += frame->linesize[p];
713 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
717 if ((ret = update_frame_pool(avctx, frame)) < 0)
720 switch (avctx->codec_type) {
721 case AVMEDIA_TYPE_VIDEO:
722 return video_get_buffer(avctx, frame);
723 case AVMEDIA_TYPE_AUDIO:
724 return audio_get_buffer(avctx, frame);
730 static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame)
733 const uint8_t *side_metadata;
735 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
737 side_metadata = av_packet_get_side_data(avpkt,
738 AV_PKT_DATA_STRINGS_METADATA, &size);
739 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
742 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
744 AVPacket *pkt = avctx->internal->pkt;
746 static const struct {
747 enum AVPacketSideDataType packet;
748 enum AVFrameSideDataType frame;
750 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
751 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
752 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
753 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
757 frame->pkt_pts = pkt->pts;
758 av_frame_set_pkt_pos (frame, pkt->pos);
759 av_frame_set_pkt_duration(frame, pkt->duration);
760 av_frame_set_pkt_size (frame, pkt->size);
762 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
764 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
766 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
770 return AVERROR(ENOMEM);
772 memcpy(frame_sd->data, packet_sd, size);
775 add_metadata_from_side_data(pkt, frame);
777 frame->pkt_pts = AV_NOPTS_VALUE;
778 av_frame_set_pkt_pos (frame, -1);
779 av_frame_set_pkt_duration(frame, 0);
780 av_frame_set_pkt_size (frame, -1);
782 frame->reordered_opaque = avctx->reordered_opaque;
784 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
785 frame->color_primaries = avctx->color_primaries;
786 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
787 frame->color_trc = avctx->color_trc;
788 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
789 av_frame_set_colorspace(frame, avctx->colorspace);
790 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
791 av_frame_set_color_range(frame, avctx->color_range);
792 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
793 frame->chroma_location = avctx->chroma_sample_location;
795 switch (avctx->codec->type) {
796 case AVMEDIA_TYPE_VIDEO:
797 frame->format = avctx->pix_fmt;
798 if (!frame->sample_aspect_ratio.num)
799 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
801 if (frame->width && frame->height &&
802 av_image_check_sar(frame->width, frame->height,
803 frame->sample_aspect_ratio) < 0) {
804 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
805 frame->sample_aspect_ratio.num,
806 frame->sample_aspect_ratio.den);
807 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
811 case AVMEDIA_TYPE_AUDIO:
812 if (!frame->sample_rate)
813 frame->sample_rate = avctx->sample_rate;
814 if (frame->format < 0)
815 frame->format = avctx->sample_fmt;
816 if (!frame->channel_layout) {
817 if (avctx->channel_layout) {
818 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
820 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
822 return AVERROR(EINVAL);
825 frame->channel_layout = avctx->channel_layout;
827 if (avctx->channels > FF_SANE_NB_CHANNELS) {
828 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
830 return AVERROR(ENOSYS);
834 av_frame_set_channels(frame, avctx->channels);
840 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
842 return ff_init_buffer_info(avctx, frame);
845 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
847 const AVHWAccel *hwaccel = avctx->hwaccel;
848 int override_dimensions = 1;
851 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
852 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
853 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
854 return AVERROR(EINVAL);
857 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
858 if (frame->width <= 0 || frame->height <= 0) {
859 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
860 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
861 override_dimensions = 0;
864 ret = ff_decode_frame_props(avctx, frame);
869 if (hwaccel->alloc_frame) {
870 ret = hwaccel->alloc_frame(avctx, frame);
874 avctx->sw_pix_fmt = avctx->pix_fmt;
876 ret = avctx->get_buffer2(avctx, frame, flags);
879 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
880 frame->width = avctx->width;
881 frame->height = avctx->height;
887 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
889 int ret = get_buffer_internal(avctx, frame, flags);
891 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
895 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
900 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
902 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
903 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
904 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
905 av_frame_unref(frame);
908 ff_init_buffer_info(avctx, frame);
911 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
913 if (av_frame_is_writable(frame))
914 return ff_decode_frame_props(avctx, frame);
916 tmp = av_frame_alloc();
918 return AVERROR(ENOMEM);
920 av_frame_move_ref(tmp, frame);
922 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
928 av_frame_copy(frame, tmp);
934 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
936 int ret = reget_buffer_internal(avctx, frame);
938 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
942 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
946 for (i = 0; i < count; i++) {
947 int r = func(c, (char *)arg + i * size);
954 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
958 for (i = 0; i < count; i++) {
959 int r = func(c, arg, i, 0);
966 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
969 while (tags->pix_fmt >= 0) {
970 if (tags->fourcc == fourcc)
971 return tags->pix_fmt;
974 return AV_PIX_FMT_NONE;
977 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
979 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
980 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
983 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
985 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
990 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
991 enum AVPixelFormat pix_fmt)
993 AVHWAccel *hwaccel = NULL;
995 while ((hwaccel = av_hwaccel_next(hwaccel)))
996 if (hwaccel->id == codec_id
997 && hwaccel->pix_fmt == pix_fmt)
1002 static int setup_hwaccel(AVCodecContext *avctx,
1003 const enum AVPixelFormat fmt,
1006 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1010 av_log(avctx, AV_LOG_ERROR,
1011 "Could not find an AVHWAccel for the pixel format: %s",
1013 return AVERROR(ENOENT);
1016 if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1017 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1018 av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1020 return AVERROR_PATCHWELCOME;
1023 if (hwa->priv_data_size) {
1024 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
1025 if (!avctx->internal->hwaccel_priv_data)
1026 return AVERROR(ENOMEM);
1030 ret = hwa->init(avctx);
1032 av_freep(&avctx->internal->hwaccel_priv_data);
1037 avctx->hwaccel = hwa;
1042 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1044 const AVPixFmtDescriptor *desc;
1045 enum AVPixelFormat *choices;
1046 enum AVPixelFormat ret;
1049 while (fmt[n] != AV_PIX_FMT_NONE)
1053 avctx->sw_pix_fmt = fmt[n - 1];
1054 av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
1056 choices = av_malloc_array(n + 1, sizeof(*choices));
1058 return AV_PIX_FMT_NONE;
1060 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1063 if (avctx->hwaccel && avctx->hwaccel->uninit)
1064 avctx->hwaccel->uninit(avctx);
1065 av_freep(&avctx->internal->hwaccel_priv_data);
1066 avctx->hwaccel = NULL;
1068 ret = avctx->get_format(avctx, choices);
1070 desc = av_pix_fmt_desc_get(ret);
1072 ret = AV_PIX_FMT_NONE;
1076 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1078 #if FF_API_CAP_VDPAU
1079 if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
1083 if (!setup_hwaccel(avctx, ret, desc->name))
1086 /* Remove failed hwaccel from choices */
1087 for (n = 0; choices[n] != ret; n++)
1088 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1091 choices[n] = choices[n + 1];
1092 while (choices[n++] != AV_PIX_FMT_NONE);
1099 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1100 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1101 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1102 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1103 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1105 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
1107 return codec->properties;
1110 int av_codec_get_max_lowres(const AVCodec *codec)
1112 return codec->max_lowres;
1115 static void get_subtitle_defaults(AVSubtitle *sub)
1117 memset(sub, 0, sizeof(*sub));
1118 sub->pts = AV_NOPTS_VALUE;
1121 static int get_bit_rate(AVCodecContext *ctx)
1124 int bits_per_sample;
1126 switch (ctx->codec_type) {
1127 case AVMEDIA_TYPE_VIDEO:
1128 case AVMEDIA_TYPE_DATA:
1129 case AVMEDIA_TYPE_SUBTITLE:
1130 case AVMEDIA_TYPE_ATTACHMENT:
1131 bit_rate = ctx->bit_rate;
1133 case AVMEDIA_TYPE_AUDIO:
1134 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1135 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1144 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1148 ff_unlock_avcodec();
1150 ret = avcodec_open2(avctx, codec, options);
1152 ff_lock_avcodec(avctx, codec);
1156 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1159 AVDictionary *tmp = NULL;
1161 if (avcodec_is_open(avctx))
1164 if ((!codec && !avctx->codec)) {
1165 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1166 return AVERROR(EINVAL);
1168 if ((codec && avctx->codec && codec != avctx->codec)) {
1169 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1170 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1171 return AVERROR(EINVAL);
1174 codec = avctx->codec;
1176 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1177 return AVERROR(EINVAL);
1180 av_dict_copy(&tmp, *options, 0);
1182 ret = ff_lock_avcodec(avctx, codec);
1186 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1187 if (!avctx->internal) {
1188 ret = AVERROR(ENOMEM);
1192 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1193 if (!avctx->internal->pool) {
1194 ret = AVERROR(ENOMEM);
1198 avctx->internal->to_free = av_frame_alloc();
1199 if (!avctx->internal->to_free) {
1200 ret = AVERROR(ENOMEM);
1204 if (codec->priv_data_size > 0) {
1205 if (!avctx->priv_data) {
1206 avctx->priv_data = av_mallocz(codec->priv_data_size);
1207 if (!avctx->priv_data) {
1208 ret = AVERROR(ENOMEM);
1211 if (codec->priv_class) {
1212 *(const AVClass **)avctx->priv_data = codec->priv_class;
1213 av_opt_set_defaults(avctx->priv_data);
1216 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1219 avctx->priv_data = NULL;
1221 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1224 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1225 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist\n", codec->name);
1226 ret = AVERROR(EINVAL);
1230 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1231 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1232 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1233 if (avctx->coded_width && avctx->coded_height)
1234 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1235 else if (avctx->width && avctx->height)
1236 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1241 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1242 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1243 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1244 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1245 ff_set_dimensions(avctx, 0, 0);
1248 if (avctx->width > 0 && avctx->height > 0) {
1249 if (av_image_check_sar(avctx->width, avctx->height,
1250 avctx->sample_aspect_ratio) < 0) {
1251 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1252 avctx->sample_aspect_ratio.num,
1253 avctx->sample_aspect_ratio.den);
1254 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1258 /* if the decoder init function was already called previously,
1259 * free the already allocated subtitle_header before overwriting it */
1260 if (av_codec_is_decoder(codec))
1261 av_freep(&avctx->subtitle_header);
1263 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1264 ret = AVERROR(EINVAL);
1268 avctx->codec = codec;
1269 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1270 avctx->codec_id == AV_CODEC_ID_NONE) {
1271 avctx->codec_type = codec->type;
1272 avctx->codec_id = codec->id;
1274 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1275 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1276 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1277 ret = AVERROR(EINVAL);
1280 avctx->frame_number = 0;
1281 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1283 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
1284 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1285 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1287 av_log(avctx, AV_LOG_ERROR,
1288 "The %s '%s' is experimental but experimental codecs are not enabled, "
1289 "add '-strict %d' if you want to use it.\n",
1290 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1291 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1292 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
1293 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1294 codec_string, codec2->name);
1295 ret = AVERROR_EXPERIMENTAL;
1299 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1300 (!avctx->time_base.num || !avctx->time_base.den)) {
1301 avctx->time_base.num = 1;
1302 avctx->time_base.den = avctx->sample_rate;
1306 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1308 if (CONFIG_FRAME_THREAD_ENCODER) {
1309 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1310 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1311 ff_lock_avcodec(avctx, codec);
1317 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1318 ret = ff_thread_init(avctx);
1323 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
1324 avctx->thread_count = 1;
1326 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1327 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1328 avctx->codec->max_lowres);
1329 ret = AVERROR(EINVAL);
1334 if (avctx->debug_mv)
1335 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1336 "see the codecview filter instead.\n");
1339 if (av_codec_is_encoder(avctx->codec)) {
1341 #if FF_API_CODED_FRAME
1342 FF_DISABLE_DEPRECATION_WARNINGS
1343 avctx->coded_frame = av_frame_alloc();
1344 if (!avctx->coded_frame) {
1345 ret = AVERROR(ENOMEM);
1348 FF_ENABLE_DEPRECATION_WARNINGS
1350 if (avctx->codec->sample_fmts) {
1351 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1352 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1354 if (avctx->channels == 1 &&
1355 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1356 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1357 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1361 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1363 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1364 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1365 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1366 ret = AVERROR(EINVAL);
1370 if (avctx->codec->pix_fmts) {
1371 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1372 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1374 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1375 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1376 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1378 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1379 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1380 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1381 ret = AVERROR(EINVAL);
1384 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1385 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1386 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1387 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1388 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1389 avctx->color_range = AVCOL_RANGE_JPEG;
1391 if (avctx->codec->supported_samplerates) {
1392 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1393 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1395 if (avctx->codec->supported_samplerates[i] == 0) {
1396 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1397 avctx->sample_rate);
1398 ret = AVERROR(EINVAL);
1402 if (avctx->sample_rate < 0) {
1403 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1404 avctx->sample_rate);
1405 ret = AVERROR(EINVAL);
1408 if (avctx->codec->channel_layouts) {
1409 if (!avctx->channel_layout) {
1410 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1412 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1413 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1415 if (avctx->codec->channel_layouts[i] == 0) {
1417 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1418 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1419 ret = AVERROR(EINVAL);
1424 if (avctx->channel_layout && avctx->channels) {
1425 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1426 if (channels != avctx->channels) {
1428 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1429 av_log(avctx, AV_LOG_ERROR,
1430 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1431 buf, channels, avctx->channels);
1432 ret = AVERROR(EINVAL);
1435 } else if (avctx->channel_layout) {
1436 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1438 if (avctx->channels < 0) {
1439 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
1441 ret = AVERROR(EINVAL);
1444 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1445 if (avctx->width <= 0 || avctx->height <= 0) {
1446 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1447 ret = AVERROR(EINVAL);
1451 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1452 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1453 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1456 if (!avctx->rc_initial_buffer_occupancy)
1457 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1460 avctx->pts_correction_num_faulty_pts =
1461 avctx->pts_correction_num_faulty_dts = 0;
1462 avctx->pts_correction_last_pts =
1463 avctx->pts_correction_last_dts = INT64_MIN;
1465 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1466 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1467 av_log(avctx, AV_LOG_WARNING,
1468 "gray decoding requested but not enabled at configuration time\n");
1470 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1471 || avctx->internal->frame_thread_encoder)) {
1472 ret = avctx->codec->init(avctx);
1480 #if FF_API_AUDIOENC_DELAY
1481 if (av_codec_is_encoder(avctx->codec))
1482 avctx->delay = avctx->initial_padding;
1485 if (av_codec_is_decoder(avctx->codec)) {
1486 if (!avctx->bit_rate)
1487 avctx->bit_rate = get_bit_rate(avctx);
1488 /* validate channel layout from the decoder */
1489 if (avctx->channel_layout) {
1490 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1491 if (!avctx->channels)
1492 avctx->channels = channels;
1493 else if (channels != avctx->channels) {
1495 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1496 av_log(avctx, AV_LOG_WARNING,
1497 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1498 "ignoring specified channel layout\n",
1499 buf, channels, avctx->channels);
1500 avctx->channel_layout = 0;
1503 if (avctx->channels && avctx->channels < 0 ||
1504 avctx->channels > FF_SANE_NB_CHANNELS) {
1505 ret = AVERROR(EINVAL);
1508 if (avctx->sub_charenc) {
1509 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1510 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1511 "supported with subtitles codecs\n");
1512 ret = AVERROR(EINVAL);
1514 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1515 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1516 "subtitles character encoding will be ignored\n",
1517 avctx->codec_descriptor->name);
1518 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1520 /* input character encoding is set for a text based subtitle
1521 * codec at this point */
1522 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1523 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1525 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1527 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1528 if (cd == (iconv_t)-1) {
1529 ret = AVERROR(errno);
1530 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1531 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1536 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1537 "conversion needs a libavcodec built with iconv support "
1538 "for this codec\n");
1539 ret = AVERROR(ENOSYS);
1546 #if FF_API_AVCTX_TIMEBASE
1547 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1548 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1551 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1552 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1556 ff_unlock_avcodec();
1558 av_dict_free(options);
1565 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1566 avctx->codec->close(avctx);
1568 if (codec->priv_class && codec->priv_data_size)
1569 av_opt_free(avctx->priv_data);
1572 #if FF_API_CODED_FRAME
1573 FF_DISABLE_DEPRECATION_WARNINGS
1574 av_frame_free(&avctx->coded_frame);
1575 FF_ENABLE_DEPRECATION_WARNINGS
1579 av_freep(&avctx->priv_data);
1580 if (avctx->internal) {
1581 av_frame_free(&avctx->internal->to_free);
1582 av_freep(&avctx->internal->pool);
1584 av_freep(&avctx->internal);
1585 avctx->codec = NULL;
1589 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1591 if (avpkt->size < 0) {
1592 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1593 return AVERROR(EINVAL);
1595 if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
1596 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1597 size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1598 return AVERROR(EINVAL);
1601 if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1602 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1603 if (!avpkt->data || avpkt->size < size) {
1604 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1605 avpkt->data = avctx->internal->byte_buffer;
1606 avpkt->size = avctx->internal->byte_buffer_size;
1611 AVBufferRef *buf = avpkt->buf;
1613 if (avpkt->size < size) {
1614 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1615 return AVERROR(EINVAL);
1618 av_init_packet(avpkt);
1623 int ret = av_new_packet(avpkt, size);
1625 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1630 int ff_alloc_packet(AVPacket *avpkt, int size)
1632 return ff_alloc_packet2(NULL, avpkt, size, 0);
1636 * Pad last frame with silence.
1638 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1640 AVFrame *frame = NULL;
1643 if (!(frame = av_frame_alloc()))
1644 return AVERROR(ENOMEM);
1646 frame->format = src->format;
1647 frame->channel_layout = src->channel_layout;
1648 av_frame_set_channels(frame, av_frame_get_channels(src));
1649 frame->nb_samples = s->frame_size;
1650 ret = av_frame_get_buffer(frame, 32);
1654 ret = av_frame_copy_props(frame, src);
1658 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1659 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1661 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1662 frame->nb_samples - src->nb_samples,
1663 s->channels, s->sample_fmt)) < 0)
1671 av_frame_free(&frame);
1675 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1677 const AVFrame *frame,
1678 int *got_packet_ptr)
1680 AVFrame *extended_frame = NULL;
1681 AVFrame *padded_frame = NULL;
1683 AVPacket user_pkt = *avpkt;
1684 int needs_realloc = !user_pkt.data;
1686 *got_packet_ptr = 0;
1688 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1689 av_free_packet(avpkt);
1690 av_init_packet(avpkt);
1694 /* ensure that extended_data is properly set */
1695 if (frame && !frame->extended_data) {
1696 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1697 avctx->channels > AV_NUM_DATA_POINTERS) {
1698 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1699 "with more than %d channels, but extended_data is not set.\n",
1700 AV_NUM_DATA_POINTERS);
1701 return AVERROR(EINVAL);
1703 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1705 extended_frame = av_frame_alloc();
1706 if (!extended_frame)
1707 return AVERROR(ENOMEM);
1709 memcpy(extended_frame, frame, sizeof(AVFrame));
1710 extended_frame->extended_data = extended_frame->data;
1711 frame = extended_frame;
1714 /* extract audio service type metadata */
1716 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1717 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1718 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1721 /* check for valid frame size */
1723 if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
1724 if (frame->nb_samples > avctx->frame_size) {
1725 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1726 ret = AVERROR(EINVAL);
1729 } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1730 if (frame->nb_samples < avctx->frame_size &&
1731 !avctx->internal->last_audio_frame) {
1732 ret = pad_last_frame(avctx, &padded_frame, frame);
1736 frame = padded_frame;
1737 avctx->internal->last_audio_frame = 1;
1740 if (frame->nb_samples != avctx->frame_size) {
1741 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1742 ret = AVERROR(EINVAL);
1748 av_assert0(avctx->codec->encode2);
1750 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1752 if (*got_packet_ptr) {
1753 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1754 if (avpkt->pts == AV_NOPTS_VALUE)
1755 avpkt->pts = frame->pts;
1756 if (!avpkt->duration)
1757 avpkt->duration = ff_samples_to_time_base(avctx,
1760 avpkt->dts = avpkt->pts;
1765 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1767 if (user_pkt.data) {
1768 if (user_pkt.size >= avpkt->size) {
1769 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1771 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1772 avpkt->size = user_pkt.size;
1775 avpkt->buf = user_pkt.buf;
1776 avpkt->data = user_pkt.data;
1778 if (av_dup_packet(avpkt) < 0) {
1779 ret = AVERROR(ENOMEM);
1785 if (needs_realloc && avpkt->data) {
1786 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1788 avpkt->data = avpkt->buf->data;
1791 avctx->frame_number++;
1794 if (ret < 0 || !*got_packet_ptr) {
1795 av_free_packet(avpkt);
1796 av_init_packet(avpkt);
1800 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1801 * this needs to be moved to the encoders, but for now we can do it
1802 * here to simplify things */
1803 avpkt->flags |= AV_PKT_FLAG_KEY;
1806 av_frame_free(&padded_frame);
1807 av_free(extended_frame);
1809 #if FF_API_AUDIOENC_DELAY
1810 avctx->delay = avctx->initial_padding;
1816 #if FF_API_OLD_ENCODE_AUDIO
1817 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
1818 uint8_t *buf, int buf_size,
1819 const short *samples)
1823 int ret, samples_size, got_packet;
1825 av_init_packet(&pkt);
1827 pkt.size = buf_size;
1830 frame = av_frame_alloc();
1832 return AVERROR(ENOMEM);
1834 if (avctx->frame_size) {
1835 frame->nb_samples = avctx->frame_size;
1837 /* if frame_size is not set, the number of samples must be
1838 * calculated from the buffer size */
1840 if (!av_get_bits_per_sample(avctx->codec_id)) {
1841 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
1842 "support this codec\n");
1843 av_frame_free(&frame);
1844 return AVERROR(EINVAL);
1846 nb_samples = (int64_t)buf_size * 8 /
1847 (av_get_bits_per_sample(avctx->codec_id) *
1849 if (nb_samples >= INT_MAX) {
1850 av_frame_free(&frame);
1851 return AVERROR(EINVAL);
1853 frame->nb_samples = nb_samples;
1856 /* it is assumed that the samples buffer is large enough based on the
1857 * relevant parameters */
1858 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
1860 avctx->sample_fmt, 1);
1861 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
1863 (const uint8_t *)samples,
1864 samples_size, 1)) < 0) {
1865 av_frame_free(&frame);
1869 /* fabricate frame pts from sample count.
1870 * this is needed because the avcodec_encode_audio() API does not have
1871 * a way for the user to provide pts */
1872 if (avctx->sample_rate && avctx->time_base.num)
1873 frame->pts = ff_samples_to_time_base(avctx,
1874 avctx->internal->sample_count);
1876 frame->pts = AV_NOPTS_VALUE;
1877 avctx->internal->sample_count += frame->nb_samples;
1883 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
1884 #if FF_API_CODED_FRAME
1885 FF_DISABLE_DEPRECATION_WARNINGS
1886 if (!ret && got_packet && avctx->coded_frame) {
1887 avctx->coded_frame->pts = pkt.pts;
1888 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1890 FF_ENABLE_DEPRECATION_WARNINGS
1893 /* free any side data since we cannot return it */
1894 av_packet_free_side_data(&pkt);
1896 if (frame && frame->extended_data != frame->data)
1897 av_freep(&frame->extended_data);
1899 av_frame_free(&frame);
1900 return ret ? ret : pkt.size;
1905 #if FF_API_OLD_ENCODE_VIDEO
1906 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1907 const AVFrame *pict)
1910 int ret, got_packet = 0;
1912 if (buf_size < AV_INPUT_BUFFER_MIN_SIZE) {
1913 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
1917 av_init_packet(&pkt);
1919 pkt.size = buf_size;
1921 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
1922 #if FF_API_CODED_FRAME
1923 FF_DISABLE_DEPRECATION_WARNINGS
1924 if (!ret && got_packet && avctx->coded_frame) {
1925 avctx->coded_frame->pts = pkt.pts;
1926 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1927 if (avctx->codec->capabilities & AV_CODEC_CAP_INTRA_ONLY)
1928 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
1930 FF_ENABLE_DEPRECATION_WARNINGS
1933 /* free any side data since we cannot return it */
1934 if (pkt.side_data_elems > 0) {
1936 for (i = 0; i < pkt.side_data_elems; i++)
1937 av_free(pkt.side_data[i].data);
1938 av_freep(&pkt.side_data);
1939 pkt.side_data_elems = 0;
1942 return ret ? ret : pkt.size;
1947 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1949 const AVFrame *frame,
1950 int *got_packet_ptr)
1953 AVPacket user_pkt = *avpkt;
1954 int needs_realloc = !user_pkt.data;
1956 *got_packet_ptr = 0;
1958 if(CONFIG_FRAME_THREAD_ENCODER &&
1959 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1960 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1962 if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
1963 avctx->stats_out[0] = '\0';
1965 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1966 av_free_packet(avpkt);
1967 av_init_packet(avpkt);
1972 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1973 return AVERROR(EINVAL);
1975 if (frame && frame->format == AV_PIX_FMT_NONE)
1976 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
1977 if (frame && (frame->width == 0 || frame->height == 0))
1978 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
1980 av_assert0(avctx->codec->encode2);
1982 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1983 av_assert0(ret <= 0);
1985 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1987 if (user_pkt.data) {
1988 if (user_pkt.size >= avpkt->size) {
1989 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1991 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1992 avpkt->size = user_pkt.size;
1995 avpkt->buf = user_pkt.buf;
1996 avpkt->data = user_pkt.data;
1998 if (av_dup_packet(avpkt) < 0) {
1999 ret = AVERROR(ENOMEM);
2005 if (!*got_packet_ptr)
2007 else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2008 avpkt->pts = avpkt->dts = frame->pts;
2010 if (needs_realloc && avpkt->data) {
2011 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
2013 avpkt->data = avpkt->buf->data;
2016 avctx->frame_number++;
2019 if (ret < 0 || !*got_packet_ptr)
2020 av_free_packet(avpkt);
2026 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2027 const AVSubtitle *sub)
2030 if (sub->start_display_time) {
2031 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2035 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2036 avctx->frame_number++;
2041 * Attempt to guess proper monotonic timestamps for decoded video frames
2042 * which might have incorrect times. Input timestamps may wrap around, in
2043 * which case the output will as well.
2045 * @param pts the pts field of the decoded AVPacket, as passed through
2047 * @param dts the dts field of the decoded AVPacket
2048 * @return one of the input values, may be AV_NOPTS_VALUE
2050 static int64_t guess_correct_pts(AVCodecContext *ctx,
2051 int64_t reordered_pts, int64_t dts)
2053 int64_t pts = AV_NOPTS_VALUE;
2055 if (dts != AV_NOPTS_VALUE) {
2056 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2057 ctx->pts_correction_last_dts = dts;
2058 } else if (reordered_pts != AV_NOPTS_VALUE)
2059 ctx->pts_correction_last_dts = reordered_pts;
2061 if (reordered_pts != AV_NOPTS_VALUE) {
2062 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2063 ctx->pts_correction_last_pts = reordered_pts;
2064 } else if(dts != AV_NOPTS_VALUE)
2065 ctx->pts_correction_last_pts = dts;
2067 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2068 && reordered_pts != AV_NOPTS_VALUE)
2069 pts = reordered_pts;
2076 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2079 const uint8_t *data;
2083 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2087 if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
2088 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2089 "changes, but PARAM_CHANGE side data was sent to it.\n");
2090 return AVERROR(EINVAL);
2096 flags = bytestream_get_le32(&data);
2099 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2102 val = bytestream_get_le32(&data);
2103 if (val <= 0 || val > INT_MAX) {
2104 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2105 return AVERROR_INVALIDDATA;
2107 avctx->channels = val;
2110 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2113 avctx->channel_layout = bytestream_get_le64(&data);
2116 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2119 val = bytestream_get_le32(&data);
2120 if (val <= 0 || val > INT_MAX) {
2121 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2122 return AVERROR_INVALIDDATA;
2124 avctx->sample_rate = val;
2127 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2130 avctx->width = bytestream_get_le32(&data);
2131 avctx->height = bytestream_get_le32(&data);
2133 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2140 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2141 return AVERROR_INVALIDDATA;
2144 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2148 /* move the original frame to our backup */
2149 av_frame_unref(avci->to_free);
2150 av_frame_move_ref(avci->to_free, frame);
2152 /* now copy everything except the AVBufferRefs back
2153 * note that we make a COPY of the side data, so calling av_frame_free() on
2154 * the caller's frame will work properly */
2155 ret = av_frame_copy_props(frame, avci->to_free);
2159 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2160 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2161 if (avci->to_free->extended_data != avci->to_free->data) {
2162 int planes = av_frame_get_channels(avci->to_free);
2163 int size = planes * sizeof(*frame->extended_data);
2166 av_frame_unref(frame);
2170 frame->extended_data = av_malloc(size);
2171 if (!frame->extended_data) {
2172 av_frame_unref(frame);
2173 return AVERROR(ENOMEM);
2175 memcpy(frame->extended_data, avci->to_free->extended_data,
2178 frame->extended_data = frame->data;
2180 frame->format = avci->to_free->format;
2181 frame->width = avci->to_free->width;
2182 frame->height = avci->to_free->height;
2183 frame->channel_layout = avci->to_free->channel_layout;
2184 frame->nb_samples = avci->to_free->nb_samples;
2185 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2190 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2191 int *got_picture_ptr,
2192 const AVPacket *avpkt)
2194 AVCodecInternal *avci = avctx->internal;
2196 // copy to ensure we do not change avpkt
2197 AVPacket tmp = *avpkt;
2200 return AVERROR(EINVAL);
2201 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2202 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2203 return AVERROR(EINVAL);
2206 *got_picture_ptr = 0;
2207 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2208 return AVERROR(EINVAL);
2210 av_frame_unref(picture);
2212 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2213 (avctx->active_thread_type & FF_THREAD_FRAME)) {
2214 int did_split = av_packet_split_side_data(&tmp);
2215 ret = apply_param_change(avctx, &tmp);
2217 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2218 if (avctx->err_recognition & AV_EF_EXPLODE)
2222 avctx->internal->pkt = &tmp;
2223 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2224 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2227 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2229 picture->pkt_dts = avpkt->dts;
2231 if(!avctx->has_b_frames){
2232 av_frame_set_pkt_pos(picture, avpkt->pos);
2234 //FIXME these should be under if(!avctx->has_b_frames)
2235 /* get_buffer is supposed to set frame parameters */
2236 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2237 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2238 if (!picture->width) picture->width = avctx->width;
2239 if (!picture->height) picture->height = avctx->height;
2240 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2245 emms_c(); //needed to avoid an emms_c() call before every return;
2247 avctx->internal->pkt = NULL;
2249 av_packet_free_side_data(&tmp);
2254 if (*got_picture_ptr) {
2255 if (!avctx->refcounted_frames) {
2256 int err = unrefcount_frame(avci, picture);
2261 avctx->frame_number++;
2262 av_frame_set_best_effort_timestamp(picture,
2263 guess_correct_pts(avctx,
2267 av_frame_unref(picture);
2271 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2272 * make sure it's set correctly */
2273 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2275 #if FF_API_AVCTX_TIMEBASE
2276 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2277 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2283 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2286 const AVPacket *avpkt)
2288 AVCodecInternal *avci = avctx->internal;
2293 if (!avpkt->data && avpkt->size) {
2294 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2295 return AVERROR(EINVAL);
2298 return AVERROR(EINVAL);
2299 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2300 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2301 return AVERROR(EINVAL);
2304 av_frame_unref(frame);
2306 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2309 uint32_t discard_padding = 0;
2310 uint8_t skip_reason = 0;
2311 uint8_t discard_reason = 0;
2312 // copy to ensure we do not change avpkt
2313 AVPacket tmp = *avpkt;
2314 int did_split = av_packet_split_side_data(&tmp);
2315 ret = apply_param_change(avctx, &tmp);
2317 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2318 if (avctx->err_recognition & AV_EF_EXPLODE)
2322 avctx->internal->pkt = &tmp;
2323 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2324 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2326 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2327 av_assert0(ret <= tmp.size);
2328 frame->pkt_dts = avpkt->dts;
2330 if (ret >= 0 && *got_frame_ptr) {
2331 avctx->frame_number++;
2332 av_frame_set_best_effort_timestamp(frame,
2333 guess_correct_pts(avctx,
2336 if (frame->format == AV_SAMPLE_FMT_NONE)
2337 frame->format = avctx->sample_fmt;
2338 if (!frame->channel_layout)
2339 frame->channel_layout = avctx->channel_layout;
2340 if (!av_frame_get_channels(frame))
2341 av_frame_set_channels(frame, avctx->channels);
2342 if (!frame->sample_rate)
2343 frame->sample_rate = avctx->sample_rate;
2346 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2347 if(side && side_size>=10) {
2348 avctx->internal->skip_samples = AV_RL32(side);
2349 discard_padding = AV_RL32(side + 4);
2350 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2351 avctx->internal->skip_samples, (int)discard_padding);
2352 skip_reason = AV_RL8(side + 8);
2353 discard_reason = AV_RL8(side + 9);
2355 if (avctx->internal->skip_samples && *got_frame_ptr &&
2356 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2357 if(frame->nb_samples <= avctx->internal->skip_samples){
2359 avctx->internal->skip_samples -= frame->nb_samples;
2360 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2361 avctx->internal->skip_samples);
2363 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2364 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2365 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2366 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2367 (AVRational){1, avctx->sample_rate},
2368 avctx->pkt_timebase);
2369 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2370 frame->pkt_pts += diff_ts;
2371 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2372 frame->pkt_dts += diff_ts;
2373 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2374 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2376 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2378 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2379 avctx->internal->skip_samples, frame->nb_samples);
2380 frame->nb_samples -= avctx->internal->skip_samples;
2381 avctx->internal->skip_samples = 0;
2385 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2386 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2387 if (discard_padding == frame->nb_samples) {
2390 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2391 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2392 (AVRational){1, avctx->sample_rate},
2393 avctx->pkt_timebase);
2394 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2395 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2397 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2399 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2400 (int)discard_padding, frame->nb_samples);
2401 frame->nb_samples -= discard_padding;
2405 if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2406 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2408 AV_WL32(fside->data, avctx->internal->skip_samples);
2409 AV_WL32(fside->data + 4, discard_padding);
2410 AV_WL8(fside->data + 8, skip_reason);
2411 AV_WL8(fside->data + 9, discard_reason);
2412 avctx->internal->skip_samples = 0;
2416 avctx->internal->pkt = NULL;
2418 av_packet_free_side_data(&tmp);
2423 if (ret >= 0 && *got_frame_ptr) {
2424 if (!avctx->refcounted_frames) {
2425 int err = unrefcount_frame(avci, frame);
2430 av_frame_unref(frame);
2436 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2437 static int recode_subtitle(AVCodecContext *avctx,
2438 AVPacket *outpkt, const AVPacket *inpkt)
2441 iconv_t cd = (iconv_t)-1;
2448 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2452 cd = iconv_open("UTF-8", avctx->sub_charenc);
2453 av_assert0(cd != (iconv_t)-1);
2458 if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2459 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2460 ret = AVERROR(ENOMEM);
2464 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2467 outpkt->buf = tmp.buf;
2468 outpkt->data = tmp.data;
2469 outpkt->size = tmp.size;
2470 outb = outpkt->data;
2471 outl = outpkt->size;
2473 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2474 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2475 outl >= outpkt->size || inl != 0) {
2476 ret = FFMIN(AVERROR(errno), -1);
2477 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2478 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2479 av_free_packet(&tmp);
2482 outpkt->size -= outl;
2483 memset(outpkt->data + outpkt->size, 0, outl);
2486 if (cd != (iconv_t)-1)
2490 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2491 return AVERROR(EINVAL);
2495 static int utf8_check(const uint8_t *str)
2497 const uint8_t *byte;
2498 uint32_t codepoint, min;
2502 GET_UTF8(codepoint, *(byte++), return 0;);
2503 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2504 1 << (5 * (byte - str) - 4);
2505 if (codepoint < min || codepoint >= 0x110000 ||
2506 codepoint == 0xFFFE /* BOM */ ||
2507 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2514 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2520 if (!avpkt->data && avpkt->size) {
2521 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2522 return AVERROR(EINVAL);
2525 return AVERROR(EINVAL);
2526 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2527 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2528 return AVERROR(EINVAL);
2532 get_subtitle_defaults(sub);
2534 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2535 AVPacket pkt_recoded;
2536 AVPacket tmp = *avpkt;
2537 int did_split = av_packet_split_side_data(&tmp);
2538 //apply_param_change(avctx, &tmp);
2541 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2543 * If the side data is smaller than the buffer padding size, the
2544 * remaining bytes should have already been filled with zeros by the
2545 * original packet allocation anyway. */
2546 memset(tmp.data + tmp.size, 0,
2547 FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2551 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2555 avctx->internal->pkt = &pkt_recoded;
2557 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2558 sub->pts = av_rescale_q(avpkt->pts,
2559 avctx->pkt_timebase, AV_TIME_BASE_Q);
2560 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2561 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2562 !!*got_sub_ptr >= !!sub->num_rects);
2564 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2565 avctx->pkt_timebase.num) {
2566 AVRational ms = { 1, 1000 };
2567 sub->end_display_time = av_rescale_q(avpkt->duration,
2568 avctx->pkt_timebase, ms);
2571 for (i = 0; i < sub->num_rects; i++) {
2572 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2573 av_log(avctx, AV_LOG_ERROR,
2574 "Invalid UTF-8 in decoded subtitles text; "
2575 "maybe missing -sub_charenc option\n");
2576 avsubtitle_free(sub);
2577 return AVERROR_INVALIDDATA;
2581 if (tmp.data != pkt_recoded.data) { // did we recode?
2582 /* prevent from destroying side data from original packet */
2583 pkt_recoded.side_data = NULL;
2584 pkt_recoded.side_data_elems = 0;
2586 av_free_packet(&pkt_recoded);
2588 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2590 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2592 avctx->internal->pkt = NULL;
2596 av_packet_free_side_data(&tmp);
2602 avctx->frame_number++;
2608 void avsubtitle_free(AVSubtitle *sub)
2612 for (i = 0; i < sub->num_rects; i++) {
2613 av_freep(&sub->rects[i]->pict.data[0]);
2614 av_freep(&sub->rects[i]->pict.data[1]);
2615 av_freep(&sub->rects[i]->pict.data[2]);
2616 av_freep(&sub->rects[i]->pict.data[3]);
2617 av_freep(&sub->rects[i]->text);
2618 av_freep(&sub->rects[i]->ass);
2619 av_freep(&sub->rects[i]);
2622 av_freep(&sub->rects);
2624 memset(sub, 0, sizeof(AVSubtitle));
2627 av_cold int avcodec_close(AVCodecContext *avctx)
2632 if (avcodec_is_open(avctx)) {
2633 FramePool *pool = avctx->internal->pool;
2635 if (CONFIG_FRAME_THREAD_ENCODER &&
2636 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2637 ff_frame_thread_encoder_free(avctx);
2639 if (HAVE_THREADS && avctx->internal->thread_ctx)
2640 ff_thread_free(avctx);
2641 if (avctx->codec && avctx->codec->close)
2642 avctx->codec->close(avctx);
2643 avctx->internal->byte_buffer_size = 0;
2644 av_freep(&avctx->internal->byte_buffer);
2645 av_frame_free(&avctx->internal->to_free);
2646 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2647 av_buffer_pool_uninit(&pool->pools[i]);
2648 av_freep(&avctx->internal->pool);
2650 if (avctx->hwaccel && avctx->hwaccel->uninit)
2651 avctx->hwaccel->uninit(avctx);
2652 av_freep(&avctx->internal->hwaccel_priv_data);
2654 av_freep(&avctx->internal);
2657 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2658 av_opt_free(avctx->priv_data);
2660 av_freep(&avctx->priv_data);
2661 if (av_codec_is_encoder(avctx->codec)) {
2662 av_freep(&avctx->extradata);
2663 #if FF_API_CODED_FRAME
2664 FF_DISABLE_DEPRECATION_WARNINGS
2665 av_frame_free(&avctx->coded_frame);
2666 FF_ENABLE_DEPRECATION_WARNINGS
2669 avctx->codec = NULL;
2670 avctx->active_thread_type = 0;
2675 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2678 //This is for future deprecatec codec ids, its empty since
2679 //last major bump but will fill up again over time, please don't remove it
2680 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2681 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2682 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2683 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2684 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2685 case AV_CODEC_ID_PCM_S16BE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S16BE_PLANAR;
2686 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2687 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2688 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2689 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2690 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2691 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2692 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2693 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2694 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2695 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2696 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2697 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2698 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2699 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2700 default : return id;
2704 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2706 AVCodec *p, *experimental = NULL;
2708 id= remap_deprecated_codec_id(id);
2710 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2712 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
2719 return experimental;
2722 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2724 return find_encdec(id, 1);
2727 AVCodec *avcodec_find_encoder_by_name(const char *name)
2734 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2741 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2743 return find_encdec(id, 0);
2746 AVCodec *avcodec_find_decoder_by_name(const char *name)
2753 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2760 const char *avcodec_get_name(enum AVCodecID id)
2762 const AVCodecDescriptor *cd;
2765 if (id == AV_CODEC_ID_NONE)
2767 cd = avcodec_descriptor_get(id);
2770 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2771 codec = avcodec_find_decoder(id);
2774 codec = avcodec_find_encoder(id);
2777 return "unknown_codec";
2780 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
2782 int i, len, ret = 0;
2784 #define TAG_PRINT(x) \
2785 (((x) >= '0' && (x) <= '9') || \
2786 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
2787 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
2789 for (i = 0; i < 4; i++) {
2790 len = snprintf(buf, buf_size,
2791 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
2793 buf_size = buf_size > len ? buf_size - len : 0;
2800 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
2802 const char *codec_type;
2803 const char *codec_name;
2804 const char *profile = NULL;
2808 AVRational display_aspect_ratio;
2809 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
2811 if (!buf || buf_size <= 0)
2813 codec_type = av_get_media_type_string(enc->codec_type);
2814 codec_name = avcodec_get_name(enc->codec_id);
2815 if (enc->profile != FF_PROFILE_UNKNOWN) {
2819 p = encode ? avcodec_find_encoder(enc->codec_id) :
2820 avcodec_find_decoder(enc->codec_id);
2822 profile = av_get_profile_name(p, enc->profile);
2825 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
2827 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
2829 if (enc->codec && strcmp(enc->codec->name, codec_name))
2830 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
2833 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
2834 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
2835 && av_log_get_level() >= AV_LOG_VERBOSE
2837 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2838 ", %d reference frame%s",
2839 enc->refs, enc->refs > 1 ? "s" : "");
2841 if (enc->codec_tag) {
2843 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
2844 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2845 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
2848 switch (enc->codec_type) {
2849 case AVMEDIA_TYPE_VIDEO:
2851 char detail[256] = "(";
2853 av_strlcat(buf, separator, buf_size);
2855 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2856 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
2857 av_get_pix_fmt_name(enc->pix_fmt));
2858 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
2859 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
2860 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
2861 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
2862 av_strlcatf(detail, sizeof(detail), "%s, ",
2863 av_color_range_name(enc->color_range));
2865 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
2866 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
2867 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
2868 if (enc->colorspace != (int)enc->color_primaries ||
2869 enc->colorspace != (int)enc->color_trc) {
2871 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
2872 av_color_space_name(enc->colorspace),
2873 av_color_primaries_name(enc->color_primaries),
2874 av_color_transfer_name(enc->color_trc));
2876 av_strlcatf(detail, sizeof(detail), "%s, ",
2877 av_get_colorspace_name(enc->colorspace));
2880 if (av_log_get_level() >= AV_LOG_DEBUG &&
2881 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
2882 av_strlcatf(detail, sizeof(detail), "%s, ",
2883 av_chroma_location_name(enc->chroma_sample_location));
2885 if (strlen(detail) > 1) {
2886 detail[strlen(detail) - 2] = 0;
2887 av_strlcatf(buf, buf_size, "%s)", detail);
2892 av_strlcat(buf, new_line ? separator : ", ", buf_size);
2894 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2896 enc->width, enc->height);
2898 if (av_log_get_level() >= AV_LOG_VERBOSE &&
2899 (enc->width != enc->coded_width ||
2900 enc->height != enc->coded_height))
2901 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2902 " (%dx%d)", enc->coded_width, enc->coded_height);
2904 if (enc->sample_aspect_ratio.num) {
2905 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
2906 enc->width * enc->sample_aspect_ratio.num,
2907 enc->height * enc->sample_aspect_ratio.den,
2909 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2910 " [SAR %d:%d DAR %d:%d]",
2911 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
2912 display_aspect_ratio.num, display_aspect_ratio.den);
2914 if (av_log_get_level() >= AV_LOG_DEBUG) {
2915 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2916 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2918 enc->time_base.num / g, enc->time_base.den / g);
2922 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2923 ", q=%d-%d", enc->qmin, enc->qmax);
2925 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
2926 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2927 ", Closed Captions");
2928 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
2929 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2933 case AVMEDIA_TYPE_AUDIO:
2934 av_strlcat(buf, separator, buf_size);
2936 if (enc->sample_rate) {
2937 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2938 "%d Hz, ", enc->sample_rate);
2940 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
2941 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
2942 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2943 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
2945 if ( enc->bits_per_raw_sample > 0
2946 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
2947 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2948 " (%d bit)", enc->bits_per_raw_sample);
2950 case AVMEDIA_TYPE_DATA:
2951 if (av_log_get_level() >= AV_LOG_DEBUG) {
2952 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2954 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2956 enc->time_base.num / g, enc->time_base.den / g);
2959 case AVMEDIA_TYPE_SUBTITLE:
2961 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2962 ", %dx%d", enc->width, enc->height);
2968 if (enc->flags & AV_CODEC_FLAG_PASS1)
2969 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2971 if (enc->flags & AV_CODEC_FLAG_PASS2)
2972 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2975 bitrate = get_bit_rate(enc);
2977 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2978 ", %d kb/s", bitrate / 1000);
2979 } else if (enc->rc_max_rate > 0) {
2980 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2981 ", max. %d kb/s", enc->rc_max_rate / 1000);
2985 const char *av_get_profile_name(const AVCodec *codec, int profile)
2988 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
2991 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
2992 if (p->profile == profile)
2998 unsigned avcodec_version(void)
3000 // av_assert0(AV_CODEC_ID_V410==164);
3001 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3002 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3003 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3004 av_assert0(AV_CODEC_ID_SRT==94216);
3005 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3008 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
3009 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
3010 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
3011 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
3012 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
3014 return LIBAVCODEC_VERSION_INT;
3017 const char *avcodec_configuration(void)
3019 return FFMPEG_CONFIGURATION;
3022 const char *avcodec_license(void)
3024 #define LICENSE_PREFIX "libavcodec license: "
3025 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3028 void avcodec_flush_buffers(AVCodecContext *avctx)
3030 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3031 ff_thread_flush(avctx);
3032 else if (avctx->codec->flush)
3033 avctx->codec->flush(avctx);
3035 avctx->pts_correction_last_pts =
3036 avctx->pts_correction_last_dts = INT64_MIN;
3038 if (!avctx->refcounted_frames)
3039 av_frame_unref(avctx->internal->to_free);
3042 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3045 case AV_CODEC_ID_8SVX_EXP:
3046 case AV_CODEC_ID_8SVX_FIB:
3047 case AV_CODEC_ID_ADPCM_CT:
3048 case AV_CODEC_ID_ADPCM_IMA_APC:
3049 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3050 case AV_CODEC_ID_ADPCM_IMA_OKI:
3051 case AV_CODEC_ID_ADPCM_IMA_WS:
3052 case AV_CODEC_ID_ADPCM_G722:
3053 case AV_CODEC_ID_ADPCM_YAMAHA:
3055 case AV_CODEC_ID_DSD_LSBF:
3056 case AV_CODEC_ID_DSD_MSBF:
3057 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3058 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3059 case AV_CODEC_ID_PCM_ALAW:
3060 case AV_CODEC_ID_PCM_MULAW:
3061 case AV_CODEC_ID_PCM_S8:
3062 case AV_CODEC_ID_PCM_S8_PLANAR:
3063 case AV_CODEC_ID_PCM_U8:
3064 case AV_CODEC_ID_PCM_ZORK:
3066 case AV_CODEC_ID_PCM_S16BE:
3067 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3068 case AV_CODEC_ID_PCM_S16LE:
3069 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3070 case AV_CODEC_ID_PCM_U16BE:
3071 case AV_CODEC_ID_PCM_U16LE:
3073 case AV_CODEC_ID_PCM_S24DAUD:
3074 case AV_CODEC_ID_PCM_S24BE:
3075 case AV_CODEC_ID_PCM_S24LE:
3076 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3077 case AV_CODEC_ID_PCM_U24BE:
3078 case AV_CODEC_ID_PCM_U24LE:
3080 case AV_CODEC_ID_PCM_S32BE:
3081 case AV_CODEC_ID_PCM_S32LE:
3082 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3083 case AV_CODEC_ID_PCM_U32BE:
3084 case AV_CODEC_ID_PCM_U32LE:
3085 case AV_CODEC_ID_PCM_F32BE:
3086 case AV_CODEC_ID_PCM_F32LE:
3088 case AV_CODEC_ID_PCM_F64BE:
3089 case AV_CODEC_ID_PCM_F64LE:
3096 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3098 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3099 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3100 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3101 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3102 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3103 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3104 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3105 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3106 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3107 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3108 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3110 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3111 return AV_CODEC_ID_NONE;
3112 if (be < 0 || be > 1)
3114 return map[fmt][be];
3117 int av_get_bits_per_sample(enum AVCodecID codec_id)
3120 case AV_CODEC_ID_ADPCM_SBPRO_2:
3122 case AV_CODEC_ID_ADPCM_SBPRO_3:
3124 case AV_CODEC_ID_ADPCM_SBPRO_4:
3125 case AV_CODEC_ID_ADPCM_IMA_WAV:
3126 case AV_CODEC_ID_ADPCM_IMA_QT:
3127 case AV_CODEC_ID_ADPCM_SWF:
3128 case AV_CODEC_ID_ADPCM_MS:
3131 return av_get_exact_bits_per_sample(codec_id);
3135 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3137 int id, sr, ch, ba, tag, bps;
3139 id = avctx->codec_id;
3140 sr = avctx->sample_rate;
3141 ch = avctx->channels;
3142 ba = avctx->block_align;
3143 tag = avctx->codec_tag;
3144 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3146 /* codecs with an exact constant bits per sample */
3147 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3148 return (frame_bytes * 8LL) / (bps * ch);
3149 bps = avctx->bits_per_coded_sample;
3151 /* codecs with a fixed packet duration */
3153 case AV_CODEC_ID_ADPCM_ADX: return 32;
3154 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3155 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3156 case AV_CODEC_ID_AMR_NB:
3157 case AV_CODEC_ID_EVRC:
3158 case AV_CODEC_ID_GSM:
3159 case AV_CODEC_ID_QCELP:
3160 case AV_CODEC_ID_RA_288: return 160;
3161 case AV_CODEC_ID_AMR_WB:
3162 case AV_CODEC_ID_GSM_MS: return 320;
3163 case AV_CODEC_ID_MP1: return 384;
3164 case AV_CODEC_ID_ATRAC1: return 512;
3165 case AV_CODEC_ID_ATRAC3: return 1024;
3166 case AV_CODEC_ID_ATRAC3P: return 2048;
3167 case AV_CODEC_ID_MP2:
3168 case AV_CODEC_ID_MUSEPACK7: return 1152;
3169 case AV_CODEC_ID_AC3: return 1536;
3173 /* calc from sample rate */
3174 if (id == AV_CODEC_ID_TTA)
3175 return 256 * sr / 245;
3178 /* calc from sample rate and channels */
3179 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3180 return (480 << (sr / 22050)) / ch;
3185 /* calc from block_align */
3186 if (id == AV_CODEC_ID_SIPR) {
3188 case 20: return 160;
3189 case 19: return 144;
3190 case 29: return 288;
3191 case 37: return 480;
3193 } else if (id == AV_CODEC_ID_ILBC) {
3195 case 38: return 160;
3196 case 50: return 240;
3201 if (frame_bytes > 0) {
3202 /* calc from frame_bytes only */
3203 if (id == AV_CODEC_ID_TRUESPEECH)
3204 return 240 * (frame_bytes / 32);
3205 if (id == AV_CODEC_ID_NELLYMOSER)
3206 return 256 * (frame_bytes / 64);
3207 if (id == AV_CODEC_ID_RA_144)
3208 return 160 * (frame_bytes / 20);
3209 if (id == AV_CODEC_ID_G723_1)
3210 return 240 * (frame_bytes / 24);
3213 /* calc from frame_bytes and bits_per_coded_sample */
3214 if (id == AV_CODEC_ID_ADPCM_G726)
3215 return frame_bytes * 8 / bps;
3219 /* calc from frame_bytes and channels */
3221 case AV_CODEC_ID_ADPCM_AFC:
3222 return frame_bytes / (9 * ch) * 16;
3223 case AV_CODEC_ID_ADPCM_DTK:
3224 return frame_bytes / (16 * ch) * 28;
3225 case AV_CODEC_ID_ADPCM_4XM:
3226 case AV_CODEC_ID_ADPCM_IMA_ISS:
3227 return (frame_bytes - 4 * ch) * 2 / ch;
3228 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3229 return (frame_bytes - 4) * 2 / ch;
3230 case AV_CODEC_ID_ADPCM_IMA_AMV:
3231 return (frame_bytes - 8) * 2 / ch;
3232 case AV_CODEC_ID_ADPCM_THP:
3233 case AV_CODEC_ID_ADPCM_THP_LE:
3234 if (avctx->extradata)
3235 return frame_bytes * 14 / (8 * ch);
3237 case AV_CODEC_ID_ADPCM_XA:
3238 return (frame_bytes / 128) * 224 / ch;
3239 case AV_CODEC_ID_INTERPLAY_DPCM:
3240 return (frame_bytes - 6 - ch) / ch;
3241 case AV_CODEC_ID_ROQ_DPCM:
3242 return (frame_bytes - 8) / ch;
3243 case AV_CODEC_ID_XAN_DPCM:
3244 return (frame_bytes - 2 * ch) / ch;
3245 case AV_CODEC_ID_MACE3:
3246 return 3 * frame_bytes / ch;
3247 case AV_CODEC_ID_MACE6:
3248 return 6 * frame_bytes / ch;
3249 case AV_CODEC_ID_PCM_LXF:
3250 return 2 * (frame_bytes / (5 * ch));
3251 case AV_CODEC_ID_IAC:
3252 case AV_CODEC_ID_IMC:
3253 return 4 * frame_bytes / ch;
3257 /* calc from frame_bytes, channels, and codec_tag */
3258 if (id == AV_CODEC_ID_SOL_DPCM) {
3260 return frame_bytes / ch;
3262 return frame_bytes * 2 / ch;
3267 /* calc from frame_bytes, channels, and block_align */
3268 int blocks = frame_bytes / ba;
3269 switch (avctx->codec_id) {
3270 case AV_CODEC_ID_ADPCM_IMA_WAV:
3271 if (bps < 2 || bps > 5)
3273 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3274 case AV_CODEC_ID_ADPCM_IMA_DK3:
3275 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3276 case AV_CODEC_ID_ADPCM_IMA_DK4:
3277 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3278 case AV_CODEC_ID_ADPCM_IMA_RAD:
3279 return blocks * ((ba - 4 * ch) * 2 / ch);
3280 case AV_CODEC_ID_ADPCM_MS:
3281 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3286 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3287 switch (avctx->codec_id) {
3288 case AV_CODEC_ID_PCM_DVD:
3291 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3292 case AV_CODEC_ID_PCM_BLURAY:
3295 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3296 case AV_CODEC_ID_S302M:
3297 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3303 /* Fall back on using frame_size */
3304 if (avctx->frame_size > 1 && frame_bytes)
3305 return avctx->frame_size;
3307 //For WMA we currently have no other means to calculate duration thus we
3308 //do it here by assuming CBR, which is true for all known cases.
3309 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3310 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3311 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3318 int ff_thread_init(AVCodecContext *s)
3325 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3339 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3342 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3346 #if FF_API_MISSING_SAMPLE
3347 FF_DISABLE_DEPRECATION_WARNINGS
3348 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3350 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3351 "version to the newest one from Git. If the problem still "
3352 "occurs, it means that your file has a feature which has not "
3353 "been implemented.\n", feature);
3355 av_log_ask_for_sample(avc, NULL);
3358 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3360 va_list argument_list;
3362 va_start(argument_list, msg);
3365 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3366 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3367 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3368 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3370 va_end(argument_list);
3372 FF_ENABLE_DEPRECATION_WARNINGS
3373 #endif /* FF_API_MISSING_SAMPLE */
3375 static AVHWAccel *first_hwaccel = NULL;
3376 static AVHWAccel **last_hwaccel = &first_hwaccel;
3378 void av_register_hwaccel(AVHWAccel *hwaccel)
3380 AVHWAccel **p = last_hwaccel;
3381 hwaccel->next = NULL;
3382 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3384 last_hwaccel = &hwaccel->next;
3387 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3389 return hwaccel ? hwaccel->next : first_hwaccel;
3392 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3395 // There is no good way to rollback a failure to destroy the
3396 // mutex, so we ignore failures.
3397 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3398 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3401 avformat_mutex = NULL;
3405 void *new_codec_mutex = NULL;
3406 void *new_avformat_mutex = NULL;
3408 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3409 return err > 0 ? AVERROR_UNKNOWN : err;
3411 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3412 // Ignore failures to destroy the newly created mutex.
3413 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3414 return err > 0 ? AVERROR_UNKNOWN : err;
3417 codec_mutex = new_codec_mutex;
3418 avformat_mutex = new_avformat_mutex;
3424 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3427 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3431 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1 &&
3432 !(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE)) {
3433 av_log(log_ctx, AV_LOG_ERROR,
3434 "Insufficient thread locking. At least %d threads are "
3435 "calling avcodec_open2() at the same time right now.\n",
3436 entangled_thread_counter);
3438 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3439 ff_avcodec_locked = 1;
3440 ff_unlock_avcodec();
3441 return AVERROR(EINVAL);
3443 av_assert0(!ff_avcodec_locked);
3444 ff_avcodec_locked = 1;
3448 int ff_unlock_avcodec(void)
3450 av_assert0(ff_avcodec_locked);
3451 ff_avcodec_locked = 0;
3452 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3454 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3461 int avpriv_lock_avformat(void)
3464 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3470 int avpriv_unlock_avformat(void)
3473 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3479 unsigned int avpriv_toupper4(unsigned int x)
3481 return av_toupper(x & 0xFF) +
3482 (av_toupper((x >> 8) & 0xFF) << 8) +
3483 (av_toupper((x >> 16) & 0xFF) << 16) +
3484 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3487 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3491 dst->owner = src->owner;
3493 ret = av_frame_ref(dst->f, src->f);
3497 av_assert0(!dst->progress);
3499 if (src->progress &&
3500 !(dst->progress = av_buffer_ref(src->progress))) {
3501 ff_thread_release_buffer(dst->owner, dst);
3502 return AVERROR(ENOMEM);
3510 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3512 return ff_get_format(avctx, fmt);
3515 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3518 return ff_get_buffer(avctx, f->f, flags);
3521 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3524 av_frame_unref(f->f);
3527 void ff_thread_finish_setup(AVCodecContext *avctx)
3531 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3535 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3539 int ff_thread_can_start_frame(AVCodecContext *avctx)
3544 int ff_alloc_entries(AVCodecContext *avctx, int count)
3549 void ff_reset_entries(AVCodecContext *avctx)
3553 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3557 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3563 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3565 AVCodec *c= avcodec_find_decoder(codec_id);
3567 c= avcodec_find_encoder(codec_id);
3571 if (codec_id <= AV_CODEC_ID_NONE)
3572 return AVMEDIA_TYPE_UNKNOWN;
3573 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3574 return AVMEDIA_TYPE_VIDEO;
3575 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3576 return AVMEDIA_TYPE_AUDIO;
3577 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3578 return AVMEDIA_TYPE_SUBTITLE;
3580 return AVMEDIA_TYPE_UNKNOWN;
3583 int avcodec_is_open(AVCodecContext *s)
3585 return !!s->internal;
3588 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3593 ret = av_bprint_finalize(buf, &str);
3596 if (!av_bprint_is_complete(buf)) {
3598 return AVERROR(ENOMEM);
3601 avctx->extradata = str;
3602 /* Note: the string is NUL terminated (so extradata can be read as a
3603 * string), but the ending character is not accounted in the size (in
3604 * binary formats you are likely not supposed to mux that character). When
3605 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
3607 avctx->extradata_size = buf->len;
3611 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3613 uint32_t *av_restrict state)
3617 av_assert0(p <= end);
3621 for (i = 0; i < 3; i++) {
3622 uint32_t tmp = *state << 8;
3623 *state = tmp + *(p++);
3624 if (tmp == 0x100 || p == end)
3629 if (p[-1] > 1 ) p += 3;
3630 else if (p[-2] ) p += 2;
3631 else if (p[-3]|(p[-1]-1)) p++;
3638 p = FFMIN(p, end) - 4;
3639 *state = AV_RB32(p);