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 #if FF_API_GET_BUFFER
721 FF_DISABLE_DEPRECATION_WARNINGS
722 frame->type = FF_BUFFER_TYPE_INTERNAL;
723 FF_ENABLE_DEPRECATION_WARNINGS
726 switch (avctx->codec_type) {
727 case AVMEDIA_TYPE_VIDEO:
728 return video_get_buffer(avctx, frame);
729 case AVMEDIA_TYPE_AUDIO:
730 return audio_get_buffer(avctx, frame);
736 static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame)
739 const uint8_t *side_metadata;
741 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
743 side_metadata = av_packet_get_side_data(avpkt,
744 AV_PKT_DATA_STRINGS_METADATA, &size);
745 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
748 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
750 AVPacket *pkt = avctx->internal->pkt;
752 static const struct {
753 enum AVPacketSideDataType packet;
754 enum AVFrameSideDataType frame;
756 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
757 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
758 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
759 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
763 frame->pkt_pts = pkt->pts;
764 av_frame_set_pkt_pos (frame, pkt->pos);
765 av_frame_set_pkt_duration(frame, pkt->duration);
766 av_frame_set_pkt_size (frame, pkt->size);
768 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
770 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
772 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
776 return AVERROR(ENOMEM);
778 memcpy(frame_sd->data, packet_sd, size);
781 add_metadata_from_side_data(pkt, frame);
783 frame->pkt_pts = AV_NOPTS_VALUE;
784 av_frame_set_pkt_pos (frame, -1);
785 av_frame_set_pkt_duration(frame, 0);
786 av_frame_set_pkt_size (frame, -1);
788 frame->reordered_opaque = avctx->reordered_opaque;
790 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
791 frame->color_primaries = avctx->color_primaries;
792 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
793 frame->color_trc = avctx->color_trc;
794 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
795 av_frame_set_colorspace(frame, avctx->colorspace);
796 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
797 av_frame_set_color_range(frame, avctx->color_range);
798 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
799 frame->chroma_location = avctx->chroma_sample_location;
801 switch (avctx->codec->type) {
802 case AVMEDIA_TYPE_VIDEO:
803 frame->format = avctx->pix_fmt;
804 if (!frame->sample_aspect_ratio.num)
805 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
807 if (frame->width && frame->height &&
808 av_image_check_sar(frame->width, frame->height,
809 frame->sample_aspect_ratio) < 0) {
810 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
811 frame->sample_aspect_ratio.num,
812 frame->sample_aspect_ratio.den);
813 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
817 case AVMEDIA_TYPE_AUDIO:
818 if (!frame->sample_rate)
819 frame->sample_rate = avctx->sample_rate;
820 if (frame->format < 0)
821 frame->format = avctx->sample_fmt;
822 if (!frame->channel_layout) {
823 if (avctx->channel_layout) {
824 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
826 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
828 return AVERROR(EINVAL);
831 frame->channel_layout = avctx->channel_layout;
833 if (avctx->channels > FF_SANE_NB_CHANNELS) {
834 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
836 return AVERROR(ENOSYS);
840 av_frame_set_channels(frame, avctx->channels);
846 #if FF_API_GET_BUFFER
847 FF_DISABLE_DEPRECATION_WARNINGS
848 int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
850 return avcodec_default_get_buffer2(avctx, frame, 0);
853 typedef struct CompatReleaseBufPriv {
854 AVCodecContext avctx;
856 uint8_t avframe_padding[1024]; // hack to allow linking to a avutil with larger AVFrame
857 } CompatReleaseBufPriv;
859 static void compat_free_buffer(void *opaque, uint8_t *data)
861 CompatReleaseBufPriv *priv = opaque;
862 if (priv->avctx.release_buffer)
863 priv->avctx.release_buffer(&priv->avctx, &priv->frame);
867 static void compat_release_buffer(void *opaque, uint8_t *data)
869 AVBufferRef *buf = opaque;
870 av_buffer_unref(&buf);
872 FF_ENABLE_DEPRECATION_WARNINGS
875 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
877 return ff_init_buffer_info(avctx, frame);
880 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
882 const AVHWAccel *hwaccel = avctx->hwaccel;
883 int override_dimensions = 1;
886 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
887 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
888 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
889 return AVERROR(EINVAL);
892 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
893 if (frame->width <= 0 || frame->height <= 0) {
894 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
895 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
896 override_dimensions = 0;
899 ret = ff_decode_frame_props(avctx, frame);
904 if (hwaccel->alloc_frame) {
905 ret = hwaccel->alloc_frame(avctx, frame);
909 avctx->sw_pix_fmt = avctx->pix_fmt;
911 #if FF_API_GET_BUFFER
912 FF_DISABLE_DEPRECATION_WARNINGS
914 * Wrap an old get_buffer()-allocated buffer in a bunch of AVBuffers.
915 * We wrap each plane in its own AVBuffer. Each of those has a reference to
916 * a dummy AVBuffer as its private data, unreffing it on free.
917 * When all the planes are freed, the dummy buffer's free callback calls
920 if (avctx->get_buffer) {
921 CompatReleaseBufPriv *priv = NULL;
922 AVBufferRef *dummy_buf = NULL;
925 if (flags & AV_GET_BUFFER_FLAG_REF)
926 frame->reference = 1;
928 ret = avctx->get_buffer(avctx, frame);
932 /* return if the buffers are already set up
933 * this would happen e.g. when a custom get_buffer() calls
934 * avcodec_default_get_buffer
939 priv = av_mallocz(sizeof(*priv));
941 ret = AVERROR(ENOMEM);
944 priv->avctx = *avctx;
945 priv->frame = *frame;
947 dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0);
949 ret = AVERROR(ENOMEM);
953 #define WRAP_PLANE(ref_out, data, data_size) \
955 AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \
957 ret = AVERROR(ENOMEM); \
960 ref_out = av_buffer_create(data, data_size, compat_release_buffer, \
963 av_buffer_unref(&dummy_ref); \
964 av_frame_unref(frame); \
965 ret = AVERROR(ENOMEM); \
970 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
971 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
973 planes = av_pix_fmt_count_planes(frame->format);
974 /* workaround for AVHWAccel plane count of 0, buf[0] is used as
975 check for allocated buffers: make libavcodec happy */
976 if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
978 if (!desc || planes <= 0) {
979 ret = AVERROR(EINVAL);
983 for (i = 0; i < planes; i++) {
984 int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
985 int plane_size = (frame->height >> v_shift) * frame->linesize[i];
987 WRAP_PLANE(frame->buf[i], frame->data[i], plane_size);
990 int planar = av_sample_fmt_is_planar(frame->format);
991 planes = planar ? avctx->channels : 1;
993 if (planes > FF_ARRAY_ELEMS(frame->buf)) {
994 frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf);
995 frame->extended_buf = av_malloc_array(sizeof(*frame->extended_buf),
996 frame->nb_extended_buf);
997 if (!frame->extended_buf) {
998 ret = AVERROR(ENOMEM);
1003 for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++)
1004 WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]);
1006 for (i = 0; i < frame->nb_extended_buf; i++)
1007 WRAP_PLANE(frame->extended_buf[i],
1008 frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)],
1009 frame->linesize[0]);
1012 av_buffer_unref(&dummy_buf);
1015 frame->width = avctx->width;
1016 frame->height = avctx->height;
1021 avctx->release_buffer(avctx, frame);
1023 av_buffer_unref(&dummy_buf);
1026 FF_ENABLE_DEPRECATION_WARNINGS
1029 ret = avctx->get_buffer2(avctx, frame, flags);
1032 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
1033 frame->width = avctx->width;
1034 frame->height = avctx->height;
1040 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1042 int ret = get_buffer_internal(avctx, frame, flags);
1044 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1048 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
1053 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
1055 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
1056 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
1057 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
1058 av_frame_unref(frame);
1061 ff_init_buffer_info(avctx, frame);
1063 if (!frame->data[0])
1064 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1066 if (av_frame_is_writable(frame))
1067 return ff_decode_frame_props(avctx, frame);
1069 tmp = av_frame_alloc();
1071 return AVERROR(ENOMEM);
1073 av_frame_move_ref(tmp, frame);
1075 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1077 av_frame_free(&tmp);
1081 av_frame_copy(frame, tmp);
1082 av_frame_free(&tmp);
1087 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
1089 int ret = reget_buffer_internal(avctx, frame);
1091 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1095 #if FF_API_GET_BUFFER
1096 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
1098 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
1100 av_frame_unref(pic);
1103 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
1110 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
1114 for (i = 0; i < count; i++) {
1115 int r = func(c, (char *)arg + i * size);
1122 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
1126 for (i = 0; i < count; i++) {
1127 int r = func(c, arg, i, 0);
1134 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
1135 unsigned int fourcc)
1137 while (tags->pix_fmt >= 0) {
1138 if (tags->fourcc == fourcc)
1139 return tags->pix_fmt;
1142 return AV_PIX_FMT_NONE;
1145 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
1147 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1148 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1151 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
1153 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1158 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
1159 enum AVPixelFormat pix_fmt)
1161 AVHWAccel *hwaccel = NULL;
1163 while ((hwaccel = av_hwaccel_next(hwaccel)))
1164 if (hwaccel->id == codec_id
1165 && hwaccel->pix_fmt == pix_fmt)
1170 static int setup_hwaccel(AVCodecContext *avctx,
1171 const enum AVPixelFormat fmt,
1174 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1178 av_log(avctx, AV_LOG_ERROR,
1179 "Could not find an AVHWAccel for the pixel format: %s",
1181 return AVERROR(ENOENT);
1184 if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1185 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1186 av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1188 return AVERROR_PATCHWELCOME;
1191 if (hwa->priv_data_size) {
1192 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
1193 if (!avctx->internal->hwaccel_priv_data)
1194 return AVERROR(ENOMEM);
1198 ret = hwa->init(avctx);
1200 av_freep(&avctx->internal->hwaccel_priv_data);
1205 avctx->hwaccel = hwa;
1210 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1212 const AVPixFmtDescriptor *desc;
1213 enum AVPixelFormat *choices;
1214 enum AVPixelFormat ret;
1217 while (fmt[n] != AV_PIX_FMT_NONE)
1221 avctx->sw_pix_fmt = fmt[n - 1];
1222 av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
1224 choices = av_malloc_array(n + 1, sizeof(*choices));
1226 return AV_PIX_FMT_NONE;
1228 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1231 if (avctx->hwaccel && avctx->hwaccel->uninit)
1232 avctx->hwaccel->uninit(avctx);
1233 av_freep(&avctx->internal->hwaccel_priv_data);
1234 avctx->hwaccel = NULL;
1236 ret = avctx->get_format(avctx, choices);
1238 desc = av_pix_fmt_desc_get(ret);
1240 ret = AV_PIX_FMT_NONE;
1244 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1246 #if FF_API_CAP_VDPAU
1247 if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
1251 if (!setup_hwaccel(avctx, ret, desc->name))
1254 /* Remove failed hwaccel from choices */
1255 for (n = 0; choices[n] != ret; n++)
1256 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1259 choices[n] = choices[n + 1];
1260 while (choices[n++] != AV_PIX_FMT_NONE);
1267 #if FF_API_AVFRAME_LAVC
1268 void avcodec_get_frame_defaults(AVFrame *frame)
1270 #if LIBAVCODEC_VERSION_MAJOR >= 55
1271 // extended_data should explicitly be freed when needed, this code is unsafe currently
1272 // also this is not compatible to the <55 ABI/API
1273 if (frame->extended_data != frame->data && 0)
1274 av_freep(&frame->extended_data);
1277 memset(frame, 0, sizeof(AVFrame));
1278 av_frame_unref(frame);
1281 AVFrame *avcodec_alloc_frame(void)
1283 return av_frame_alloc();
1286 void avcodec_free_frame(AVFrame **frame)
1288 av_frame_free(frame);
1292 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1293 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1294 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1295 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1296 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1298 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
1300 return codec->properties;
1303 int av_codec_get_max_lowres(const AVCodec *codec)
1305 return codec->max_lowres;
1308 static void get_subtitle_defaults(AVSubtitle *sub)
1310 memset(sub, 0, sizeof(*sub));
1311 sub->pts = AV_NOPTS_VALUE;
1314 static int get_bit_rate(AVCodecContext *ctx)
1317 int bits_per_sample;
1319 switch (ctx->codec_type) {
1320 case AVMEDIA_TYPE_VIDEO:
1321 case AVMEDIA_TYPE_DATA:
1322 case AVMEDIA_TYPE_SUBTITLE:
1323 case AVMEDIA_TYPE_ATTACHMENT:
1324 bit_rate = ctx->bit_rate;
1326 case AVMEDIA_TYPE_AUDIO:
1327 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1328 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1337 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1341 ff_unlock_avcodec();
1343 ret = avcodec_open2(avctx, codec, options);
1345 ff_lock_avcodec(avctx, codec);
1349 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1352 AVDictionary *tmp = NULL;
1354 if (avcodec_is_open(avctx))
1357 if ((!codec && !avctx->codec)) {
1358 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1359 return AVERROR(EINVAL);
1361 if ((codec && avctx->codec && codec != avctx->codec)) {
1362 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1363 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1364 return AVERROR(EINVAL);
1367 codec = avctx->codec;
1369 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1370 return AVERROR(EINVAL);
1373 av_dict_copy(&tmp, *options, 0);
1375 ret = ff_lock_avcodec(avctx, codec);
1379 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1380 if (!avctx->internal) {
1381 ret = AVERROR(ENOMEM);
1385 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1386 if (!avctx->internal->pool) {
1387 ret = AVERROR(ENOMEM);
1391 avctx->internal->to_free = av_frame_alloc();
1392 if (!avctx->internal->to_free) {
1393 ret = AVERROR(ENOMEM);
1397 if (codec->priv_data_size > 0) {
1398 if (!avctx->priv_data) {
1399 avctx->priv_data = av_mallocz(codec->priv_data_size);
1400 if (!avctx->priv_data) {
1401 ret = AVERROR(ENOMEM);
1404 if (codec->priv_class) {
1405 *(const AVClass **)avctx->priv_data = codec->priv_class;
1406 av_opt_set_defaults(avctx->priv_data);
1409 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1412 avctx->priv_data = NULL;
1414 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1417 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1418 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist\n", codec->name);
1419 ret = AVERROR(EINVAL);
1423 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1424 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1425 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1426 if (avctx->coded_width && avctx->coded_height)
1427 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1428 else if (avctx->width && avctx->height)
1429 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1434 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1435 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1436 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1437 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1438 ff_set_dimensions(avctx, 0, 0);
1441 if (avctx->width > 0 && avctx->height > 0) {
1442 if (av_image_check_sar(avctx->width, avctx->height,
1443 avctx->sample_aspect_ratio) < 0) {
1444 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1445 avctx->sample_aspect_ratio.num,
1446 avctx->sample_aspect_ratio.den);
1447 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1451 /* if the decoder init function was already called previously,
1452 * free the already allocated subtitle_header before overwriting it */
1453 if (av_codec_is_decoder(codec))
1454 av_freep(&avctx->subtitle_header);
1456 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1457 ret = AVERROR(EINVAL);
1461 avctx->codec = codec;
1462 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1463 avctx->codec_id == AV_CODEC_ID_NONE) {
1464 avctx->codec_type = codec->type;
1465 avctx->codec_id = codec->id;
1467 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1468 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1469 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1470 ret = AVERROR(EINVAL);
1473 avctx->frame_number = 0;
1474 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1476 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
1477 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1478 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1480 av_log(avctx, AV_LOG_ERROR,
1481 "The %s '%s' is experimental but experimental codecs are not enabled, "
1482 "add '-strict %d' if you want to use it.\n",
1483 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1484 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1485 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
1486 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1487 codec_string, codec2->name);
1488 ret = AVERROR_EXPERIMENTAL;
1492 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1493 (!avctx->time_base.num || !avctx->time_base.den)) {
1494 avctx->time_base.num = 1;
1495 avctx->time_base.den = avctx->sample_rate;
1499 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1501 if (CONFIG_FRAME_THREAD_ENCODER) {
1502 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1503 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1504 ff_lock_avcodec(avctx, codec);
1510 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1511 ret = ff_thread_init(avctx);
1516 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
1517 avctx->thread_count = 1;
1519 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1520 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1521 avctx->codec->max_lowres);
1522 ret = AVERROR(EINVAL);
1527 if (avctx->debug_mv)
1528 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1529 "see the codecview filter instead.\n");
1532 if (av_codec_is_encoder(avctx->codec)) {
1534 #if FF_API_CODED_FRAME
1535 FF_DISABLE_DEPRECATION_WARNINGS
1536 avctx->coded_frame = av_frame_alloc();
1537 if (!avctx->coded_frame) {
1538 ret = AVERROR(ENOMEM);
1541 FF_ENABLE_DEPRECATION_WARNINGS
1543 if (avctx->codec->sample_fmts) {
1544 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1545 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1547 if (avctx->channels == 1 &&
1548 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1549 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1550 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1554 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1556 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1557 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1558 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1559 ret = AVERROR(EINVAL);
1563 if (avctx->codec->pix_fmts) {
1564 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1565 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1567 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1568 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1569 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1571 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1572 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1573 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1574 ret = AVERROR(EINVAL);
1577 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1578 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1579 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1580 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1581 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1582 avctx->color_range = AVCOL_RANGE_JPEG;
1584 if (avctx->codec->supported_samplerates) {
1585 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1586 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1588 if (avctx->codec->supported_samplerates[i] == 0) {
1589 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1590 avctx->sample_rate);
1591 ret = AVERROR(EINVAL);
1595 if (avctx->sample_rate < 0) {
1596 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1597 avctx->sample_rate);
1598 ret = AVERROR(EINVAL);
1601 if (avctx->codec->channel_layouts) {
1602 if (!avctx->channel_layout) {
1603 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1605 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1606 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1608 if (avctx->codec->channel_layouts[i] == 0) {
1610 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1611 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1612 ret = AVERROR(EINVAL);
1617 if (avctx->channel_layout && avctx->channels) {
1618 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1619 if (channels != avctx->channels) {
1621 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1622 av_log(avctx, AV_LOG_ERROR,
1623 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1624 buf, channels, avctx->channels);
1625 ret = AVERROR(EINVAL);
1628 } else if (avctx->channel_layout) {
1629 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1631 if (avctx->channels < 0) {
1632 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
1634 ret = AVERROR(EINVAL);
1637 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1638 if (avctx->width <= 0 || avctx->height <= 0) {
1639 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1640 ret = AVERROR(EINVAL);
1644 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1645 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1646 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1649 if (!avctx->rc_initial_buffer_occupancy)
1650 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1653 avctx->pts_correction_num_faulty_pts =
1654 avctx->pts_correction_num_faulty_dts = 0;
1655 avctx->pts_correction_last_pts =
1656 avctx->pts_correction_last_dts = INT64_MIN;
1658 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1659 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1660 av_log(avctx, AV_LOG_WARNING,
1661 "gray decoding requested but not enabled at configuration time\n");
1663 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1664 || avctx->internal->frame_thread_encoder)) {
1665 ret = avctx->codec->init(avctx);
1673 #if FF_API_AUDIOENC_DELAY
1674 if (av_codec_is_encoder(avctx->codec))
1675 avctx->delay = avctx->initial_padding;
1678 if (av_codec_is_decoder(avctx->codec)) {
1679 if (!avctx->bit_rate)
1680 avctx->bit_rate = get_bit_rate(avctx);
1681 /* validate channel layout from the decoder */
1682 if (avctx->channel_layout) {
1683 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1684 if (!avctx->channels)
1685 avctx->channels = channels;
1686 else if (channels != avctx->channels) {
1688 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1689 av_log(avctx, AV_LOG_WARNING,
1690 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1691 "ignoring specified channel layout\n",
1692 buf, channels, avctx->channels);
1693 avctx->channel_layout = 0;
1696 if (avctx->channels && avctx->channels < 0 ||
1697 avctx->channels > FF_SANE_NB_CHANNELS) {
1698 ret = AVERROR(EINVAL);
1701 if (avctx->sub_charenc) {
1702 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1703 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1704 "supported with subtitles codecs\n");
1705 ret = AVERROR(EINVAL);
1707 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1708 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1709 "subtitles character encoding will be ignored\n",
1710 avctx->codec_descriptor->name);
1711 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1713 /* input character encoding is set for a text based subtitle
1714 * codec at this point */
1715 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1716 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1718 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1720 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1721 if (cd == (iconv_t)-1) {
1722 ret = AVERROR(errno);
1723 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1724 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1729 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1730 "conversion needs a libavcodec built with iconv support "
1731 "for this codec\n");
1732 ret = AVERROR(ENOSYS);
1739 #if FF_API_AVCTX_TIMEBASE
1740 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1741 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1744 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1745 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1749 ff_unlock_avcodec();
1751 av_dict_free(options);
1758 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1759 avctx->codec->close(avctx);
1761 if (codec->priv_class && codec->priv_data_size)
1762 av_opt_free(avctx->priv_data);
1765 #if FF_API_CODED_FRAME
1766 FF_DISABLE_DEPRECATION_WARNINGS
1767 av_frame_free(&avctx->coded_frame);
1768 FF_ENABLE_DEPRECATION_WARNINGS
1772 av_freep(&avctx->priv_data);
1773 if (avctx->internal) {
1774 av_frame_free(&avctx->internal->to_free);
1775 av_freep(&avctx->internal->pool);
1777 av_freep(&avctx->internal);
1778 avctx->codec = NULL;
1782 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1784 if (avpkt->size < 0) {
1785 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1786 return AVERROR(EINVAL);
1788 if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
1789 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1790 size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1791 return AVERROR(EINVAL);
1794 if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1795 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1796 if (!avpkt->data || avpkt->size < size) {
1797 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1798 avpkt->data = avctx->internal->byte_buffer;
1799 avpkt->size = avctx->internal->byte_buffer_size;
1800 #if FF_API_DESTRUCT_PACKET
1801 FF_DISABLE_DEPRECATION_WARNINGS
1802 avpkt->destruct = NULL;
1803 FF_ENABLE_DEPRECATION_WARNINGS
1809 AVBufferRef *buf = avpkt->buf;
1810 #if FF_API_DESTRUCT_PACKET
1811 FF_DISABLE_DEPRECATION_WARNINGS
1812 void *destruct = avpkt->destruct;
1813 FF_ENABLE_DEPRECATION_WARNINGS
1816 if (avpkt->size < size) {
1817 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1818 return AVERROR(EINVAL);
1821 av_init_packet(avpkt);
1822 #if FF_API_DESTRUCT_PACKET
1823 FF_DISABLE_DEPRECATION_WARNINGS
1824 avpkt->destruct = destruct;
1825 FF_ENABLE_DEPRECATION_WARNINGS
1831 int ret = av_new_packet(avpkt, size);
1833 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1838 int ff_alloc_packet(AVPacket *avpkt, int size)
1840 return ff_alloc_packet2(NULL, avpkt, size, 0);
1844 * Pad last frame with silence.
1846 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1848 AVFrame *frame = NULL;
1851 if (!(frame = av_frame_alloc()))
1852 return AVERROR(ENOMEM);
1854 frame->format = src->format;
1855 frame->channel_layout = src->channel_layout;
1856 av_frame_set_channels(frame, av_frame_get_channels(src));
1857 frame->nb_samples = s->frame_size;
1858 ret = av_frame_get_buffer(frame, 32);
1862 ret = av_frame_copy_props(frame, src);
1866 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1867 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1869 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1870 frame->nb_samples - src->nb_samples,
1871 s->channels, s->sample_fmt)) < 0)
1879 av_frame_free(&frame);
1883 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1885 const AVFrame *frame,
1886 int *got_packet_ptr)
1888 AVFrame *extended_frame = NULL;
1889 AVFrame *padded_frame = NULL;
1891 AVPacket user_pkt = *avpkt;
1892 int needs_realloc = !user_pkt.data;
1894 *got_packet_ptr = 0;
1896 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1897 av_free_packet(avpkt);
1898 av_init_packet(avpkt);
1902 /* ensure that extended_data is properly set */
1903 if (frame && !frame->extended_data) {
1904 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1905 avctx->channels > AV_NUM_DATA_POINTERS) {
1906 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1907 "with more than %d channels, but extended_data is not set.\n",
1908 AV_NUM_DATA_POINTERS);
1909 return AVERROR(EINVAL);
1911 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1913 extended_frame = av_frame_alloc();
1914 if (!extended_frame)
1915 return AVERROR(ENOMEM);
1917 memcpy(extended_frame, frame, sizeof(AVFrame));
1918 extended_frame->extended_data = extended_frame->data;
1919 frame = extended_frame;
1922 /* extract audio service type metadata */
1924 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1925 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1926 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1929 /* check for valid frame size */
1931 if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
1932 if (frame->nb_samples > avctx->frame_size) {
1933 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1934 ret = AVERROR(EINVAL);
1937 } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1938 if (frame->nb_samples < avctx->frame_size &&
1939 !avctx->internal->last_audio_frame) {
1940 ret = pad_last_frame(avctx, &padded_frame, frame);
1944 frame = padded_frame;
1945 avctx->internal->last_audio_frame = 1;
1948 if (frame->nb_samples != avctx->frame_size) {
1949 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1950 ret = AVERROR(EINVAL);
1956 av_assert0(avctx->codec->encode2);
1958 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1960 if (*got_packet_ptr) {
1961 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1962 if (avpkt->pts == AV_NOPTS_VALUE)
1963 avpkt->pts = frame->pts;
1964 if (!avpkt->duration)
1965 avpkt->duration = ff_samples_to_time_base(avctx,
1968 avpkt->dts = avpkt->pts;
1973 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1975 if (user_pkt.data) {
1976 if (user_pkt.size >= avpkt->size) {
1977 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1979 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1980 avpkt->size = user_pkt.size;
1983 avpkt->buf = user_pkt.buf;
1984 avpkt->data = user_pkt.data;
1985 #if FF_API_DESTRUCT_PACKET
1986 FF_DISABLE_DEPRECATION_WARNINGS
1987 avpkt->destruct = user_pkt.destruct;
1988 FF_ENABLE_DEPRECATION_WARNINGS
1991 if (av_dup_packet(avpkt) < 0) {
1992 ret = AVERROR(ENOMEM);
1998 if (needs_realloc && avpkt->data) {
1999 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
2001 avpkt->data = avpkt->buf->data;
2004 avctx->frame_number++;
2007 if (ret < 0 || !*got_packet_ptr) {
2008 av_free_packet(avpkt);
2009 av_init_packet(avpkt);
2013 /* NOTE: if we add any audio encoders which output non-keyframe packets,
2014 * this needs to be moved to the encoders, but for now we can do it
2015 * here to simplify things */
2016 avpkt->flags |= AV_PKT_FLAG_KEY;
2019 av_frame_free(&padded_frame);
2020 av_free(extended_frame);
2022 #if FF_API_AUDIOENC_DELAY
2023 avctx->delay = avctx->initial_padding;
2029 #if FF_API_OLD_ENCODE_AUDIO
2030 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
2031 uint8_t *buf, int buf_size,
2032 const short *samples)
2036 int ret, samples_size, got_packet;
2038 av_init_packet(&pkt);
2040 pkt.size = buf_size;
2043 frame = av_frame_alloc();
2045 return AVERROR(ENOMEM);
2047 if (avctx->frame_size) {
2048 frame->nb_samples = avctx->frame_size;
2050 /* if frame_size is not set, the number of samples must be
2051 * calculated from the buffer size */
2053 if (!av_get_bits_per_sample(avctx->codec_id)) {
2054 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
2055 "support this codec\n");
2056 av_frame_free(&frame);
2057 return AVERROR(EINVAL);
2059 nb_samples = (int64_t)buf_size * 8 /
2060 (av_get_bits_per_sample(avctx->codec_id) *
2062 if (nb_samples >= INT_MAX) {
2063 av_frame_free(&frame);
2064 return AVERROR(EINVAL);
2066 frame->nb_samples = nb_samples;
2069 /* it is assumed that the samples buffer is large enough based on the
2070 * relevant parameters */
2071 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
2073 avctx->sample_fmt, 1);
2074 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
2076 (const uint8_t *)samples,
2077 samples_size, 1)) < 0) {
2078 av_frame_free(&frame);
2082 /* fabricate frame pts from sample count.
2083 * this is needed because the avcodec_encode_audio() API does not have
2084 * a way for the user to provide pts */
2085 if (avctx->sample_rate && avctx->time_base.num)
2086 frame->pts = ff_samples_to_time_base(avctx,
2087 avctx->internal->sample_count);
2089 frame->pts = AV_NOPTS_VALUE;
2090 avctx->internal->sample_count += frame->nb_samples;
2096 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
2097 #if FF_API_CODED_FRAME
2098 FF_DISABLE_DEPRECATION_WARNINGS
2099 if (!ret && got_packet && avctx->coded_frame) {
2100 avctx->coded_frame->pts = pkt.pts;
2101 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2103 FF_ENABLE_DEPRECATION_WARNINGS
2106 /* free any side data since we cannot return it */
2107 av_packet_free_side_data(&pkt);
2109 if (frame && frame->extended_data != frame->data)
2110 av_freep(&frame->extended_data);
2112 av_frame_free(&frame);
2113 return ret ? ret : pkt.size;
2118 #if FF_API_OLD_ENCODE_VIDEO
2119 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2120 const AVFrame *pict)
2123 int ret, got_packet = 0;
2125 if (buf_size < AV_INPUT_BUFFER_MIN_SIZE) {
2126 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
2130 av_init_packet(&pkt);
2132 pkt.size = buf_size;
2134 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
2135 #if FF_API_CODED_FRAME
2136 FF_DISABLE_DEPRECATION_WARNINGS
2137 if (!ret && got_packet && avctx->coded_frame) {
2138 avctx->coded_frame->pts = pkt.pts;
2139 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2140 if (avctx->codec->capabilities & AV_CODEC_CAP_INTRA_ONLY)
2141 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
2143 FF_ENABLE_DEPRECATION_WARNINGS
2146 /* free any side data since we cannot return it */
2147 if (pkt.side_data_elems > 0) {
2149 for (i = 0; i < pkt.side_data_elems; i++)
2150 av_free(pkt.side_data[i].data);
2151 av_freep(&pkt.side_data);
2152 pkt.side_data_elems = 0;
2155 return ret ? ret : pkt.size;
2160 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
2162 const AVFrame *frame,
2163 int *got_packet_ptr)
2166 AVPacket user_pkt = *avpkt;
2167 int needs_realloc = !user_pkt.data;
2169 *got_packet_ptr = 0;
2171 if(CONFIG_FRAME_THREAD_ENCODER &&
2172 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
2173 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
2175 if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
2176 avctx->stats_out[0] = '\0';
2178 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
2179 av_free_packet(avpkt);
2180 av_init_packet(avpkt);
2185 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
2186 return AVERROR(EINVAL);
2188 if (frame && frame->format == AV_PIX_FMT_NONE)
2189 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
2190 if (frame && (frame->width == 0 || frame->height == 0))
2191 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
2193 av_assert0(avctx->codec->encode2);
2195 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2196 av_assert0(ret <= 0);
2198 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2200 if (user_pkt.data) {
2201 if (user_pkt.size >= avpkt->size) {
2202 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2204 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2205 avpkt->size = user_pkt.size;
2208 avpkt->buf = user_pkt.buf;
2209 avpkt->data = user_pkt.data;
2210 #if FF_API_DESTRUCT_PACKET
2211 FF_DISABLE_DEPRECATION_WARNINGS
2212 avpkt->destruct = user_pkt.destruct;
2213 FF_ENABLE_DEPRECATION_WARNINGS
2216 if (av_dup_packet(avpkt) < 0) {
2217 ret = AVERROR(ENOMEM);
2223 if (!*got_packet_ptr)
2225 else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2226 avpkt->pts = avpkt->dts = frame->pts;
2228 if (needs_realloc && avpkt->data) {
2229 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
2231 avpkt->data = avpkt->buf->data;
2234 avctx->frame_number++;
2237 if (ret < 0 || !*got_packet_ptr)
2238 av_free_packet(avpkt);
2244 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2245 const AVSubtitle *sub)
2248 if (sub->start_display_time) {
2249 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2253 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2254 avctx->frame_number++;
2259 * Attempt to guess proper monotonic timestamps for decoded video frames
2260 * which might have incorrect times. Input timestamps may wrap around, in
2261 * which case the output will as well.
2263 * @param pts the pts field of the decoded AVPacket, as passed through
2265 * @param dts the dts field of the decoded AVPacket
2266 * @return one of the input values, may be AV_NOPTS_VALUE
2268 static int64_t guess_correct_pts(AVCodecContext *ctx,
2269 int64_t reordered_pts, int64_t dts)
2271 int64_t pts = AV_NOPTS_VALUE;
2273 if (dts != AV_NOPTS_VALUE) {
2274 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2275 ctx->pts_correction_last_dts = dts;
2276 } else if (reordered_pts != AV_NOPTS_VALUE)
2277 ctx->pts_correction_last_dts = reordered_pts;
2279 if (reordered_pts != AV_NOPTS_VALUE) {
2280 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2281 ctx->pts_correction_last_pts = reordered_pts;
2282 } else if(dts != AV_NOPTS_VALUE)
2283 ctx->pts_correction_last_pts = dts;
2285 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2286 && reordered_pts != AV_NOPTS_VALUE)
2287 pts = reordered_pts;
2294 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2297 const uint8_t *data;
2301 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2305 if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
2306 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2307 "changes, but PARAM_CHANGE side data was sent to it.\n");
2308 return AVERROR(EINVAL);
2314 flags = bytestream_get_le32(&data);
2317 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2320 val = bytestream_get_le32(&data);
2321 if (val <= 0 || val > INT_MAX) {
2322 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2323 return AVERROR_INVALIDDATA;
2325 avctx->channels = val;
2328 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2331 avctx->channel_layout = bytestream_get_le64(&data);
2334 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2337 val = bytestream_get_le32(&data);
2338 if (val <= 0 || val > INT_MAX) {
2339 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2340 return AVERROR_INVALIDDATA;
2342 avctx->sample_rate = val;
2345 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2348 avctx->width = bytestream_get_le32(&data);
2349 avctx->height = bytestream_get_le32(&data);
2351 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2358 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2359 return AVERROR_INVALIDDATA;
2362 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2366 /* move the original frame to our backup */
2367 av_frame_unref(avci->to_free);
2368 av_frame_move_ref(avci->to_free, frame);
2370 /* now copy everything except the AVBufferRefs back
2371 * note that we make a COPY of the side data, so calling av_frame_free() on
2372 * the caller's frame will work properly */
2373 ret = av_frame_copy_props(frame, avci->to_free);
2377 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2378 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2379 if (avci->to_free->extended_data != avci->to_free->data) {
2380 int planes = av_frame_get_channels(avci->to_free);
2381 int size = planes * sizeof(*frame->extended_data);
2384 av_frame_unref(frame);
2388 frame->extended_data = av_malloc(size);
2389 if (!frame->extended_data) {
2390 av_frame_unref(frame);
2391 return AVERROR(ENOMEM);
2393 memcpy(frame->extended_data, avci->to_free->extended_data,
2396 frame->extended_data = frame->data;
2398 frame->format = avci->to_free->format;
2399 frame->width = avci->to_free->width;
2400 frame->height = avci->to_free->height;
2401 frame->channel_layout = avci->to_free->channel_layout;
2402 frame->nb_samples = avci->to_free->nb_samples;
2403 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2408 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2409 int *got_picture_ptr,
2410 const AVPacket *avpkt)
2412 AVCodecInternal *avci = avctx->internal;
2414 // copy to ensure we do not change avpkt
2415 AVPacket tmp = *avpkt;
2418 return AVERROR(EINVAL);
2419 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2420 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2421 return AVERROR(EINVAL);
2424 *got_picture_ptr = 0;
2425 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2426 return AVERROR(EINVAL);
2428 av_frame_unref(picture);
2430 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2431 (avctx->active_thread_type & FF_THREAD_FRAME)) {
2432 int did_split = av_packet_split_side_data(&tmp);
2433 ret = apply_param_change(avctx, &tmp);
2435 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2436 if (avctx->err_recognition & AV_EF_EXPLODE)
2440 avctx->internal->pkt = &tmp;
2441 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2442 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2445 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2447 picture->pkt_dts = avpkt->dts;
2449 if(!avctx->has_b_frames){
2450 av_frame_set_pkt_pos(picture, avpkt->pos);
2452 //FIXME these should be under if(!avctx->has_b_frames)
2453 /* get_buffer is supposed to set frame parameters */
2454 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2455 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2456 if (!picture->width) picture->width = avctx->width;
2457 if (!picture->height) picture->height = avctx->height;
2458 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2463 emms_c(); //needed to avoid an emms_c() call before every return;
2465 avctx->internal->pkt = NULL;
2467 av_packet_free_side_data(&tmp);
2472 if (*got_picture_ptr) {
2473 if (!avctx->refcounted_frames) {
2474 int err = unrefcount_frame(avci, picture);
2479 avctx->frame_number++;
2480 av_frame_set_best_effort_timestamp(picture,
2481 guess_correct_pts(avctx,
2485 av_frame_unref(picture);
2489 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2490 * make sure it's set correctly */
2491 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2493 #if FF_API_AVCTX_TIMEBASE
2494 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2495 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2501 #if FF_API_OLD_DECODE_AUDIO
2502 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2503 int *frame_size_ptr,
2506 AVFrame *frame = av_frame_alloc();
2507 int ret, got_frame = 0;
2510 return AVERROR(ENOMEM);
2511 #if FF_API_GET_BUFFER
2512 FF_DISABLE_DEPRECATION_WARNINGS
2513 if (avctx->get_buffer != avcodec_default_get_buffer) {
2514 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2515 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2516 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2517 "avcodec_decode_audio4()\n");
2518 avctx->get_buffer = avcodec_default_get_buffer;
2519 avctx->release_buffer = avcodec_default_release_buffer;
2521 FF_ENABLE_DEPRECATION_WARNINGS
2524 ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt);
2526 if (ret >= 0 && got_frame) {
2528 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2529 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2531 avctx->sample_fmt, 1);
2532 if (*frame_size_ptr < data_size) {
2533 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2534 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2535 av_frame_free(&frame);
2536 return AVERROR(EINVAL);
2539 memcpy(samples, frame->extended_data[0], plane_size);
2541 if (planar && avctx->channels > 1) {
2542 uint8_t *out = ((uint8_t *)samples) + plane_size;
2543 for (ch = 1; ch < avctx->channels; ch++) {
2544 memcpy(out, frame->extended_data[ch], plane_size);
2548 *frame_size_ptr = data_size;
2550 *frame_size_ptr = 0;
2552 av_frame_free(&frame);
2558 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2561 const AVPacket *avpkt)
2563 AVCodecInternal *avci = avctx->internal;
2568 if (!avpkt->data && avpkt->size) {
2569 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2570 return AVERROR(EINVAL);
2573 return AVERROR(EINVAL);
2574 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2575 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2576 return AVERROR(EINVAL);
2579 av_frame_unref(frame);
2581 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2584 uint32_t discard_padding = 0;
2585 uint8_t skip_reason = 0;
2586 uint8_t discard_reason = 0;
2587 // copy to ensure we do not change avpkt
2588 AVPacket tmp = *avpkt;
2589 int did_split = av_packet_split_side_data(&tmp);
2590 ret = apply_param_change(avctx, &tmp);
2592 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2593 if (avctx->err_recognition & AV_EF_EXPLODE)
2597 avctx->internal->pkt = &tmp;
2598 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2599 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2601 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2602 av_assert0(ret <= tmp.size);
2603 frame->pkt_dts = avpkt->dts;
2605 if (ret >= 0 && *got_frame_ptr) {
2606 avctx->frame_number++;
2607 av_frame_set_best_effort_timestamp(frame,
2608 guess_correct_pts(avctx,
2611 if (frame->format == AV_SAMPLE_FMT_NONE)
2612 frame->format = avctx->sample_fmt;
2613 if (!frame->channel_layout)
2614 frame->channel_layout = avctx->channel_layout;
2615 if (!av_frame_get_channels(frame))
2616 av_frame_set_channels(frame, avctx->channels);
2617 if (!frame->sample_rate)
2618 frame->sample_rate = avctx->sample_rate;
2621 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2622 if(side && side_size>=10) {
2623 avctx->internal->skip_samples = AV_RL32(side);
2624 discard_padding = AV_RL32(side + 4);
2625 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2626 avctx->internal->skip_samples, (int)discard_padding);
2627 skip_reason = AV_RL8(side + 8);
2628 discard_reason = AV_RL8(side + 9);
2630 if (avctx->internal->skip_samples && *got_frame_ptr &&
2631 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2632 if(frame->nb_samples <= avctx->internal->skip_samples){
2634 avctx->internal->skip_samples -= frame->nb_samples;
2635 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2636 avctx->internal->skip_samples);
2638 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2639 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2640 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2641 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2642 (AVRational){1, avctx->sample_rate},
2643 avctx->pkt_timebase);
2644 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2645 frame->pkt_pts += diff_ts;
2646 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2647 frame->pkt_dts += diff_ts;
2648 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2649 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2651 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2653 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2654 avctx->internal->skip_samples, frame->nb_samples);
2655 frame->nb_samples -= avctx->internal->skip_samples;
2656 avctx->internal->skip_samples = 0;
2660 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2661 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2662 if (discard_padding == frame->nb_samples) {
2665 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2666 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2667 (AVRational){1, avctx->sample_rate},
2668 avctx->pkt_timebase);
2669 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2670 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2672 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2674 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2675 (int)discard_padding, frame->nb_samples);
2676 frame->nb_samples -= discard_padding;
2680 if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2681 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2683 AV_WL32(fside->data, avctx->internal->skip_samples);
2684 AV_WL32(fside->data + 4, discard_padding);
2685 AV_WL8(fside->data + 8, skip_reason);
2686 AV_WL8(fside->data + 9, discard_reason);
2687 avctx->internal->skip_samples = 0;
2691 avctx->internal->pkt = NULL;
2693 av_packet_free_side_data(&tmp);
2698 if (ret >= 0 && *got_frame_ptr) {
2699 if (!avctx->refcounted_frames) {
2700 int err = unrefcount_frame(avci, frame);
2705 av_frame_unref(frame);
2711 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2712 static int recode_subtitle(AVCodecContext *avctx,
2713 AVPacket *outpkt, const AVPacket *inpkt)
2716 iconv_t cd = (iconv_t)-1;
2723 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2727 cd = iconv_open("UTF-8", avctx->sub_charenc);
2728 av_assert0(cd != (iconv_t)-1);
2733 if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2734 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2735 ret = AVERROR(ENOMEM);
2739 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2742 outpkt->buf = tmp.buf;
2743 outpkt->data = tmp.data;
2744 outpkt->size = tmp.size;
2745 outb = outpkt->data;
2746 outl = outpkt->size;
2748 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2749 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2750 outl >= outpkt->size || inl != 0) {
2751 ret = FFMIN(AVERROR(errno), -1);
2752 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2753 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2754 av_free_packet(&tmp);
2757 outpkt->size -= outl;
2758 memset(outpkt->data + outpkt->size, 0, outl);
2761 if (cd != (iconv_t)-1)
2765 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2766 return AVERROR(EINVAL);
2770 static int utf8_check(const uint8_t *str)
2772 const uint8_t *byte;
2773 uint32_t codepoint, min;
2777 GET_UTF8(codepoint, *(byte++), return 0;);
2778 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2779 1 << (5 * (byte - str) - 4);
2780 if (codepoint < min || codepoint >= 0x110000 ||
2781 codepoint == 0xFFFE /* BOM */ ||
2782 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2789 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2795 if (!avpkt->data && avpkt->size) {
2796 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2797 return AVERROR(EINVAL);
2800 return AVERROR(EINVAL);
2801 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2802 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2803 return AVERROR(EINVAL);
2807 get_subtitle_defaults(sub);
2809 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2810 AVPacket pkt_recoded;
2811 AVPacket tmp = *avpkt;
2812 int did_split = av_packet_split_side_data(&tmp);
2813 //apply_param_change(avctx, &tmp);
2816 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2818 * If the side data is smaller than the buffer padding size, the
2819 * remaining bytes should have already been filled with zeros by the
2820 * original packet allocation anyway. */
2821 memset(tmp.data + tmp.size, 0,
2822 FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2826 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2830 avctx->internal->pkt = &pkt_recoded;
2832 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2833 sub->pts = av_rescale_q(avpkt->pts,
2834 avctx->pkt_timebase, AV_TIME_BASE_Q);
2835 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2836 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2837 !!*got_sub_ptr >= !!sub->num_rects);
2839 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2840 avctx->pkt_timebase.num) {
2841 AVRational ms = { 1, 1000 };
2842 sub->end_display_time = av_rescale_q(avpkt->duration,
2843 avctx->pkt_timebase, ms);
2846 for (i = 0; i < sub->num_rects; i++) {
2847 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2848 av_log(avctx, AV_LOG_ERROR,
2849 "Invalid UTF-8 in decoded subtitles text; "
2850 "maybe missing -sub_charenc option\n");
2851 avsubtitle_free(sub);
2852 return AVERROR_INVALIDDATA;
2856 if (tmp.data != pkt_recoded.data) { // did we recode?
2857 /* prevent from destroying side data from original packet */
2858 pkt_recoded.side_data = NULL;
2859 pkt_recoded.side_data_elems = 0;
2861 av_free_packet(&pkt_recoded);
2863 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2865 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2867 avctx->internal->pkt = NULL;
2871 av_packet_free_side_data(&tmp);
2877 avctx->frame_number++;
2883 void avsubtitle_free(AVSubtitle *sub)
2887 for (i = 0; i < sub->num_rects; i++) {
2888 av_freep(&sub->rects[i]->pict.data[0]);
2889 av_freep(&sub->rects[i]->pict.data[1]);
2890 av_freep(&sub->rects[i]->pict.data[2]);
2891 av_freep(&sub->rects[i]->pict.data[3]);
2892 av_freep(&sub->rects[i]->text);
2893 av_freep(&sub->rects[i]->ass);
2894 av_freep(&sub->rects[i]);
2897 av_freep(&sub->rects);
2899 memset(sub, 0, sizeof(AVSubtitle));
2902 av_cold int avcodec_close(AVCodecContext *avctx)
2907 if (avcodec_is_open(avctx)) {
2908 FramePool *pool = avctx->internal->pool;
2910 if (CONFIG_FRAME_THREAD_ENCODER &&
2911 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2912 ff_frame_thread_encoder_free(avctx);
2914 if (HAVE_THREADS && avctx->internal->thread_ctx)
2915 ff_thread_free(avctx);
2916 if (avctx->codec && avctx->codec->close)
2917 avctx->codec->close(avctx);
2918 avctx->internal->byte_buffer_size = 0;
2919 av_freep(&avctx->internal->byte_buffer);
2920 av_frame_free(&avctx->internal->to_free);
2921 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2922 av_buffer_pool_uninit(&pool->pools[i]);
2923 av_freep(&avctx->internal->pool);
2925 if (avctx->hwaccel && avctx->hwaccel->uninit)
2926 avctx->hwaccel->uninit(avctx);
2927 av_freep(&avctx->internal->hwaccel_priv_data);
2929 av_freep(&avctx->internal);
2932 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2933 av_opt_free(avctx->priv_data);
2935 av_freep(&avctx->priv_data);
2936 if (av_codec_is_encoder(avctx->codec)) {
2937 av_freep(&avctx->extradata);
2938 #if FF_API_CODED_FRAME
2939 FF_DISABLE_DEPRECATION_WARNINGS
2940 av_frame_free(&avctx->coded_frame);
2941 FF_ENABLE_DEPRECATION_WARNINGS
2944 avctx->codec = NULL;
2945 avctx->active_thread_type = 0;
2950 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2953 //This is for future deprecatec codec ids, its empty since
2954 //last major bump but will fill up again over time, please don't remove it
2955 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2956 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2957 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2958 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2959 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2960 case AV_CODEC_ID_PCM_S16BE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S16BE_PLANAR;
2961 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2962 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2963 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2964 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2965 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2966 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2967 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2968 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2969 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2970 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2971 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2972 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2973 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2974 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2975 default : return id;
2979 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2981 AVCodec *p, *experimental = NULL;
2983 id= remap_deprecated_codec_id(id);
2985 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2987 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
2994 return experimental;
2997 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2999 return find_encdec(id, 1);
3002 AVCodec *avcodec_find_encoder_by_name(const char *name)
3009 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
3016 AVCodec *avcodec_find_decoder(enum AVCodecID id)
3018 return find_encdec(id, 0);
3021 AVCodec *avcodec_find_decoder_by_name(const char *name)
3028 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
3035 const char *avcodec_get_name(enum AVCodecID id)
3037 const AVCodecDescriptor *cd;
3040 if (id == AV_CODEC_ID_NONE)
3042 cd = avcodec_descriptor_get(id);
3045 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
3046 codec = avcodec_find_decoder(id);
3049 codec = avcodec_find_encoder(id);
3052 return "unknown_codec";
3055 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3057 int i, len, ret = 0;
3059 #define TAG_PRINT(x) \
3060 (((x) >= '0' && (x) <= '9') || \
3061 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3062 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3064 for (i = 0; i < 4; i++) {
3065 len = snprintf(buf, buf_size,
3066 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3068 buf_size = buf_size > len ? buf_size - len : 0;
3075 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3077 const char *codec_type;
3078 const char *codec_name;
3079 const char *profile = NULL;
3083 AVRational display_aspect_ratio;
3084 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3086 if (!buf || buf_size <= 0)
3088 codec_type = av_get_media_type_string(enc->codec_type);
3089 codec_name = avcodec_get_name(enc->codec_id);
3090 if (enc->profile != FF_PROFILE_UNKNOWN) {
3094 p = encode ? avcodec_find_encoder(enc->codec_id) :
3095 avcodec_find_decoder(enc->codec_id);
3097 profile = av_get_profile_name(p, enc->profile);
3100 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3102 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3104 if (enc->codec && strcmp(enc->codec->name, codec_name))
3105 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3108 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3109 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3110 && av_log_get_level() >= AV_LOG_VERBOSE
3112 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3113 ", %d reference frame%s",
3114 enc->refs, enc->refs > 1 ? "s" : "");
3116 if (enc->codec_tag) {
3118 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3119 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3120 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3123 switch (enc->codec_type) {
3124 case AVMEDIA_TYPE_VIDEO:
3126 char detail[256] = "(";
3128 av_strlcat(buf, separator, buf_size);
3130 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3131 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3132 av_get_pix_fmt_name(enc->pix_fmt));
3133 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3134 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
3135 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3136 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
3137 av_strlcatf(detail, sizeof(detail), "%s, ",
3138 av_color_range_name(enc->color_range));
3140 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3141 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
3142 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3143 if (enc->colorspace != (int)enc->color_primaries ||
3144 enc->colorspace != (int)enc->color_trc) {
3146 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3147 av_color_space_name(enc->colorspace),
3148 av_color_primaries_name(enc->color_primaries),
3149 av_color_transfer_name(enc->color_trc));
3151 av_strlcatf(detail, sizeof(detail), "%s, ",
3152 av_get_colorspace_name(enc->colorspace));
3155 if (av_log_get_level() >= AV_LOG_DEBUG &&
3156 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
3157 av_strlcatf(detail, sizeof(detail), "%s, ",
3158 av_chroma_location_name(enc->chroma_sample_location));
3160 if (strlen(detail) > 1) {
3161 detail[strlen(detail) - 2] = 0;
3162 av_strlcatf(buf, buf_size, "%s)", detail);
3167 av_strlcat(buf, new_line ? separator : ", ", buf_size);
3169 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3171 enc->width, enc->height);
3173 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3174 (enc->width != enc->coded_width ||
3175 enc->height != enc->coded_height))
3176 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3177 " (%dx%d)", enc->coded_width, enc->coded_height);
3179 if (enc->sample_aspect_ratio.num) {
3180 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3181 enc->width * enc->sample_aspect_ratio.num,
3182 enc->height * enc->sample_aspect_ratio.den,
3184 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3185 " [SAR %d:%d DAR %d:%d]",
3186 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
3187 display_aspect_ratio.num, display_aspect_ratio.den);
3189 if (av_log_get_level() >= AV_LOG_DEBUG) {
3190 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3191 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3193 enc->time_base.num / g, enc->time_base.den / g);
3197 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3198 ", q=%d-%d", enc->qmin, enc->qmax);
3200 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
3201 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3202 ", Closed Captions");
3203 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
3204 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3208 case AVMEDIA_TYPE_AUDIO:
3209 av_strlcat(buf, separator, buf_size);
3211 if (enc->sample_rate) {
3212 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3213 "%d Hz, ", enc->sample_rate);
3215 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3216 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3217 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3218 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3220 if ( enc->bits_per_raw_sample > 0
3221 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
3222 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3223 " (%d bit)", enc->bits_per_raw_sample);
3225 case AVMEDIA_TYPE_DATA:
3226 if (av_log_get_level() >= AV_LOG_DEBUG) {
3227 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3229 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3231 enc->time_base.num / g, enc->time_base.den / g);
3234 case AVMEDIA_TYPE_SUBTITLE:
3236 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3237 ", %dx%d", enc->width, enc->height);
3243 if (enc->flags & AV_CODEC_FLAG_PASS1)
3244 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3246 if (enc->flags & AV_CODEC_FLAG_PASS2)
3247 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3250 bitrate = get_bit_rate(enc);
3252 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3253 ", %d kb/s", bitrate / 1000);
3254 } else if (enc->rc_max_rate > 0) {
3255 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3256 ", max. %d kb/s", enc->rc_max_rate / 1000);
3260 const char *av_get_profile_name(const AVCodec *codec, int profile)
3263 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3266 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3267 if (p->profile == profile)
3273 unsigned avcodec_version(void)
3275 // av_assert0(AV_CODEC_ID_V410==164);
3276 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3277 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3278 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3279 av_assert0(AV_CODEC_ID_SRT==94216);
3280 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3283 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
3284 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
3285 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
3286 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
3287 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
3289 return LIBAVCODEC_VERSION_INT;
3292 const char *avcodec_configuration(void)
3294 return FFMPEG_CONFIGURATION;
3297 const char *avcodec_license(void)
3299 #define LICENSE_PREFIX "libavcodec license: "
3300 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3303 void avcodec_flush_buffers(AVCodecContext *avctx)
3305 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3306 ff_thread_flush(avctx);
3307 else if (avctx->codec->flush)
3308 avctx->codec->flush(avctx);
3310 avctx->pts_correction_last_pts =
3311 avctx->pts_correction_last_dts = INT64_MIN;
3313 if (!avctx->refcounted_frames)
3314 av_frame_unref(avctx->internal->to_free);
3317 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3320 case AV_CODEC_ID_8SVX_EXP:
3321 case AV_CODEC_ID_8SVX_FIB:
3322 case AV_CODEC_ID_ADPCM_CT:
3323 case AV_CODEC_ID_ADPCM_IMA_APC:
3324 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3325 case AV_CODEC_ID_ADPCM_IMA_OKI:
3326 case AV_CODEC_ID_ADPCM_IMA_WS:
3327 case AV_CODEC_ID_ADPCM_G722:
3328 case AV_CODEC_ID_ADPCM_YAMAHA:
3330 case AV_CODEC_ID_DSD_LSBF:
3331 case AV_CODEC_ID_DSD_MSBF:
3332 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3333 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3334 case AV_CODEC_ID_PCM_ALAW:
3335 case AV_CODEC_ID_PCM_MULAW:
3336 case AV_CODEC_ID_PCM_S8:
3337 case AV_CODEC_ID_PCM_S8_PLANAR:
3338 case AV_CODEC_ID_PCM_U8:
3339 case AV_CODEC_ID_PCM_ZORK:
3341 case AV_CODEC_ID_PCM_S16BE:
3342 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3343 case AV_CODEC_ID_PCM_S16LE:
3344 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3345 case AV_CODEC_ID_PCM_U16BE:
3346 case AV_CODEC_ID_PCM_U16LE:
3348 case AV_CODEC_ID_PCM_S24DAUD:
3349 case AV_CODEC_ID_PCM_S24BE:
3350 case AV_CODEC_ID_PCM_S24LE:
3351 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3352 case AV_CODEC_ID_PCM_U24BE:
3353 case AV_CODEC_ID_PCM_U24LE:
3355 case AV_CODEC_ID_PCM_S32BE:
3356 case AV_CODEC_ID_PCM_S32LE:
3357 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3358 case AV_CODEC_ID_PCM_U32BE:
3359 case AV_CODEC_ID_PCM_U32LE:
3360 case AV_CODEC_ID_PCM_F32BE:
3361 case AV_CODEC_ID_PCM_F32LE:
3363 case AV_CODEC_ID_PCM_F64BE:
3364 case AV_CODEC_ID_PCM_F64LE:
3371 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3373 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3374 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3375 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3376 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3377 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3378 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3379 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3380 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3381 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3382 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3383 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3385 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3386 return AV_CODEC_ID_NONE;
3387 if (be < 0 || be > 1)
3389 return map[fmt][be];
3392 int av_get_bits_per_sample(enum AVCodecID codec_id)
3395 case AV_CODEC_ID_ADPCM_SBPRO_2:
3397 case AV_CODEC_ID_ADPCM_SBPRO_3:
3399 case AV_CODEC_ID_ADPCM_SBPRO_4:
3400 case AV_CODEC_ID_ADPCM_IMA_WAV:
3401 case AV_CODEC_ID_ADPCM_IMA_QT:
3402 case AV_CODEC_ID_ADPCM_SWF:
3403 case AV_CODEC_ID_ADPCM_MS:
3406 return av_get_exact_bits_per_sample(codec_id);
3410 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3412 int id, sr, ch, ba, tag, bps;
3414 id = avctx->codec_id;
3415 sr = avctx->sample_rate;
3416 ch = avctx->channels;
3417 ba = avctx->block_align;
3418 tag = avctx->codec_tag;
3419 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3421 /* codecs with an exact constant bits per sample */
3422 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3423 return (frame_bytes * 8LL) / (bps * ch);
3424 bps = avctx->bits_per_coded_sample;
3426 /* codecs with a fixed packet duration */
3428 case AV_CODEC_ID_ADPCM_ADX: return 32;
3429 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3430 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3431 case AV_CODEC_ID_AMR_NB:
3432 case AV_CODEC_ID_EVRC:
3433 case AV_CODEC_ID_GSM:
3434 case AV_CODEC_ID_QCELP:
3435 case AV_CODEC_ID_RA_288: return 160;
3436 case AV_CODEC_ID_AMR_WB:
3437 case AV_CODEC_ID_GSM_MS: return 320;
3438 case AV_CODEC_ID_MP1: return 384;
3439 case AV_CODEC_ID_ATRAC1: return 512;
3440 case AV_CODEC_ID_ATRAC3: return 1024;
3441 case AV_CODEC_ID_ATRAC3P: return 2048;
3442 case AV_CODEC_ID_MP2:
3443 case AV_CODEC_ID_MUSEPACK7: return 1152;
3444 case AV_CODEC_ID_AC3: return 1536;
3448 /* calc from sample rate */
3449 if (id == AV_CODEC_ID_TTA)
3450 return 256 * sr / 245;
3453 /* calc from sample rate and channels */
3454 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3455 return (480 << (sr / 22050)) / ch;
3460 /* calc from block_align */
3461 if (id == AV_CODEC_ID_SIPR) {
3463 case 20: return 160;
3464 case 19: return 144;
3465 case 29: return 288;
3466 case 37: return 480;
3468 } else if (id == AV_CODEC_ID_ILBC) {
3470 case 38: return 160;
3471 case 50: return 240;
3476 if (frame_bytes > 0) {
3477 /* calc from frame_bytes only */
3478 if (id == AV_CODEC_ID_TRUESPEECH)
3479 return 240 * (frame_bytes / 32);
3480 if (id == AV_CODEC_ID_NELLYMOSER)
3481 return 256 * (frame_bytes / 64);
3482 if (id == AV_CODEC_ID_RA_144)
3483 return 160 * (frame_bytes / 20);
3484 if (id == AV_CODEC_ID_G723_1)
3485 return 240 * (frame_bytes / 24);
3488 /* calc from frame_bytes and bits_per_coded_sample */
3489 if (id == AV_CODEC_ID_ADPCM_G726)
3490 return frame_bytes * 8 / bps;
3494 /* calc from frame_bytes and channels */
3496 case AV_CODEC_ID_ADPCM_AFC:
3497 return frame_bytes / (9 * ch) * 16;
3498 case AV_CODEC_ID_ADPCM_DTK:
3499 return frame_bytes / (16 * ch) * 28;
3500 case AV_CODEC_ID_ADPCM_4XM:
3501 case AV_CODEC_ID_ADPCM_IMA_ISS:
3502 return (frame_bytes - 4 * ch) * 2 / ch;
3503 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3504 return (frame_bytes - 4) * 2 / ch;
3505 case AV_CODEC_ID_ADPCM_IMA_AMV:
3506 return (frame_bytes - 8) * 2 / ch;
3507 case AV_CODEC_ID_ADPCM_THP:
3508 case AV_CODEC_ID_ADPCM_THP_LE:
3509 if (avctx->extradata)
3510 return frame_bytes * 14 / (8 * ch);
3512 case AV_CODEC_ID_ADPCM_XA:
3513 return (frame_bytes / 128) * 224 / ch;
3514 case AV_CODEC_ID_INTERPLAY_DPCM:
3515 return (frame_bytes - 6 - ch) / ch;
3516 case AV_CODEC_ID_ROQ_DPCM:
3517 return (frame_bytes - 8) / ch;
3518 case AV_CODEC_ID_XAN_DPCM:
3519 return (frame_bytes - 2 * ch) / ch;
3520 case AV_CODEC_ID_MACE3:
3521 return 3 * frame_bytes / ch;
3522 case AV_CODEC_ID_MACE6:
3523 return 6 * frame_bytes / ch;
3524 case AV_CODEC_ID_PCM_LXF:
3525 return 2 * (frame_bytes / (5 * ch));
3526 case AV_CODEC_ID_IAC:
3527 case AV_CODEC_ID_IMC:
3528 return 4 * frame_bytes / ch;
3532 /* calc from frame_bytes, channels, and codec_tag */
3533 if (id == AV_CODEC_ID_SOL_DPCM) {
3535 return frame_bytes / ch;
3537 return frame_bytes * 2 / ch;
3542 /* calc from frame_bytes, channels, and block_align */
3543 int blocks = frame_bytes / ba;
3544 switch (avctx->codec_id) {
3545 case AV_CODEC_ID_ADPCM_IMA_WAV:
3546 if (bps < 2 || bps > 5)
3548 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3549 case AV_CODEC_ID_ADPCM_IMA_DK3:
3550 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3551 case AV_CODEC_ID_ADPCM_IMA_DK4:
3552 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3553 case AV_CODEC_ID_ADPCM_IMA_RAD:
3554 return blocks * ((ba - 4 * ch) * 2 / ch);
3555 case AV_CODEC_ID_ADPCM_MS:
3556 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3561 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3562 switch (avctx->codec_id) {
3563 case AV_CODEC_ID_PCM_DVD:
3566 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3567 case AV_CODEC_ID_PCM_BLURAY:
3570 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3571 case AV_CODEC_ID_S302M:
3572 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3578 /* Fall back on using frame_size */
3579 if (avctx->frame_size > 1 && frame_bytes)
3580 return avctx->frame_size;
3582 //For WMA we currently have no other means to calculate duration thus we
3583 //do it here by assuming CBR, which is true for all known cases.
3584 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3585 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3586 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3593 int ff_thread_init(AVCodecContext *s)
3600 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3614 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3617 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3621 #if FF_API_MISSING_SAMPLE
3622 FF_DISABLE_DEPRECATION_WARNINGS
3623 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3625 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3626 "version to the newest one from Git. If the problem still "
3627 "occurs, it means that your file has a feature which has not "
3628 "been implemented.\n", feature);
3630 av_log_ask_for_sample(avc, NULL);
3633 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3635 va_list argument_list;
3637 va_start(argument_list, msg);
3640 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3641 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3642 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3643 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3645 va_end(argument_list);
3647 FF_ENABLE_DEPRECATION_WARNINGS
3648 #endif /* FF_API_MISSING_SAMPLE */
3650 static AVHWAccel *first_hwaccel = NULL;
3651 static AVHWAccel **last_hwaccel = &first_hwaccel;
3653 void av_register_hwaccel(AVHWAccel *hwaccel)
3655 AVHWAccel **p = last_hwaccel;
3656 hwaccel->next = NULL;
3657 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3659 last_hwaccel = &hwaccel->next;
3662 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3664 return hwaccel ? hwaccel->next : first_hwaccel;
3667 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3670 // There is no good way to rollback a failure to destroy the
3671 // mutex, so we ignore failures.
3672 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3673 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3676 avformat_mutex = NULL;
3680 void *new_codec_mutex = NULL;
3681 void *new_avformat_mutex = NULL;
3683 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3684 return err > 0 ? AVERROR_UNKNOWN : err;
3686 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3687 // Ignore failures to destroy the newly created mutex.
3688 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3689 return err > 0 ? AVERROR_UNKNOWN : err;
3692 codec_mutex = new_codec_mutex;
3693 avformat_mutex = new_avformat_mutex;
3699 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3702 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3706 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1 &&
3707 !(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE)) {
3708 av_log(log_ctx, AV_LOG_ERROR,
3709 "Insufficient thread locking. At least %d threads are "
3710 "calling avcodec_open2() at the same time right now.\n",
3711 entangled_thread_counter);
3713 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3714 ff_avcodec_locked = 1;
3715 ff_unlock_avcodec();
3716 return AVERROR(EINVAL);
3718 av_assert0(!ff_avcodec_locked);
3719 ff_avcodec_locked = 1;
3723 int ff_unlock_avcodec(void)
3725 av_assert0(ff_avcodec_locked);
3726 ff_avcodec_locked = 0;
3727 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3729 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3736 int avpriv_lock_avformat(void)
3739 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3745 int avpriv_unlock_avformat(void)
3748 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3754 unsigned int avpriv_toupper4(unsigned int x)
3756 return av_toupper(x & 0xFF) +
3757 (av_toupper((x >> 8) & 0xFF) << 8) +
3758 (av_toupper((x >> 16) & 0xFF) << 16) +
3759 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3762 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3766 dst->owner = src->owner;
3768 ret = av_frame_ref(dst->f, src->f);
3772 av_assert0(!dst->progress);
3774 if (src->progress &&
3775 !(dst->progress = av_buffer_ref(src->progress))) {
3776 ff_thread_release_buffer(dst->owner, dst);
3777 return AVERROR(ENOMEM);
3785 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3787 return ff_get_format(avctx, fmt);
3790 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3793 return ff_get_buffer(avctx, f->f, flags);
3796 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3799 av_frame_unref(f->f);
3802 void ff_thread_finish_setup(AVCodecContext *avctx)
3806 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3810 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3814 int ff_thread_can_start_frame(AVCodecContext *avctx)
3819 int ff_alloc_entries(AVCodecContext *avctx, int count)
3824 void ff_reset_entries(AVCodecContext *avctx)
3828 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3832 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3838 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3840 AVCodec *c= avcodec_find_decoder(codec_id);
3842 c= avcodec_find_encoder(codec_id);
3846 if (codec_id <= AV_CODEC_ID_NONE)
3847 return AVMEDIA_TYPE_UNKNOWN;
3848 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3849 return AVMEDIA_TYPE_VIDEO;
3850 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3851 return AVMEDIA_TYPE_AUDIO;
3852 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3853 return AVMEDIA_TYPE_SUBTITLE;
3855 return AVMEDIA_TYPE_UNKNOWN;
3858 int avcodec_is_open(AVCodecContext *s)
3860 return !!s->internal;
3863 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3868 ret = av_bprint_finalize(buf, &str);
3871 if (!av_bprint_is_complete(buf)) {
3873 return AVERROR(ENOMEM);
3876 avctx->extradata = str;
3877 /* Note: the string is NUL terminated (so extradata can be read as a
3878 * string), but the ending character is not accounted in the size (in
3879 * binary formats you are likely not supposed to mux that character). When
3880 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
3882 avctx->extradata_size = buf->len;
3886 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3888 uint32_t *av_restrict state)
3892 av_assert0(p <= end);
3896 for (i = 0; i < 3; i++) {
3897 uint32_t tmp = *state << 8;
3898 *state = tmp + *(p++);
3899 if (tmp == 0x100 || p == end)
3904 if (p[-1] > 1 ) p += 3;
3905 else if (p[-2] ) p += 2;
3906 else if (p[-3]|(p[-1]-1)) p++;
3913 p = FFMIN(p, end) - 4;
3914 *state = AV_RB32(p);