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 - FF_INPUT_BUFFER_PADDING_SIZE) {
134 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
135 memset(*p + min_size, 0, FF_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 - FF_INPUT_BUFFER_PADDING_SIZE) {
146 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
147 memset(*p, 0, min_size + FF_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 (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
1249 if (!setup_hwaccel(avctx, ret, desc->name))
1252 /* Remove failed hwaccel from choices */
1253 for (n = 0; choices[n] != ret; n++)
1254 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1257 choices[n] = choices[n + 1];
1258 while (choices[n++] != AV_PIX_FMT_NONE);
1265 #if FF_API_AVFRAME_LAVC
1266 void avcodec_get_frame_defaults(AVFrame *frame)
1268 #if LIBAVCODEC_VERSION_MAJOR >= 55
1269 // extended_data should explicitly be freed when needed, this code is unsafe currently
1270 // also this is not compatible to the <55 ABI/API
1271 if (frame->extended_data != frame->data && 0)
1272 av_freep(&frame->extended_data);
1275 memset(frame, 0, sizeof(AVFrame));
1276 av_frame_unref(frame);
1279 AVFrame *avcodec_alloc_frame(void)
1281 return av_frame_alloc();
1284 void avcodec_free_frame(AVFrame **frame)
1286 av_frame_free(frame);
1290 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1291 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1292 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1293 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1294 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1296 int av_codec_get_max_lowres(const AVCodec *codec)
1298 return codec->max_lowres;
1301 static void get_subtitle_defaults(AVSubtitle *sub)
1303 memset(sub, 0, sizeof(*sub));
1304 sub->pts = AV_NOPTS_VALUE;
1307 static int get_bit_rate(AVCodecContext *ctx)
1310 int bits_per_sample;
1312 switch (ctx->codec_type) {
1313 case AVMEDIA_TYPE_VIDEO:
1314 case AVMEDIA_TYPE_DATA:
1315 case AVMEDIA_TYPE_SUBTITLE:
1316 case AVMEDIA_TYPE_ATTACHMENT:
1317 bit_rate = ctx->bit_rate;
1319 case AVMEDIA_TYPE_AUDIO:
1320 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1321 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1330 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1334 ff_unlock_avcodec();
1336 ret = avcodec_open2(avctx, codec, options);
1338 ff_lock_avcodec(avctx, codec);
1342 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1345 AVDictionary *tmp = NULL;
1347 if (avcodec_is_open(avctx))
1350 if ((!codec && !avctx->codec)) {
1351 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1352 return AVERROR(EINVAL);
1354 if ((codec && avctx->codec && codec != avctx->codec)) {
1355 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1356 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1357 return AVERROR(EINVAL);
1360 codec = avctx->codec;
1362 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1363 return AVERROR(EINVAL);
1366 av_dict_copy(&tmp, *options, 0);
1368 ret = ff_lock_avcodec(avctx, codec);
1372 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1373 if (!avctx->internal) {
1374 ret = AVERROR(ENOMEM);
1378 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1379 if (!avctx->internal->pool) {
1380 ret = AVERROR(ENOMEM);
1384 avctx->internal->to_free = av_frame_alloc();
1385 if (!avctx->internal->to_free) {
1386 ret = AVERROR(ENOMEM);
1390 if (codec->priv_data_size > 0) {
1391 if (!avctx->priv_data) {
1392 avctx->priv_data = av_mallocz(codec->priv_data_size);
1393 if (!avctx->priv_data) {
1394 ret = AVERROR(ENOMEM);
1397 if (codec->priv_class) {
1398 *(const AVClass **)avctx->priv_data = codec->priv_class;
1399 av_opt_set_defaults(avctx->priv_data);
1402 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1405 avctx->priv_data = NULL;
1407 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1410 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1411 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist\n", codec->name);
1412 ret = AVERROR(EINVAL);
1416 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1417 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1418 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1419 if (avctx->coded_width && avctx->coded_height)
1420 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1421 else if (avctx->width && avctx->height)
1422 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1427 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1428 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1429 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1430 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1431 ff_set_dimensions(avctx, 0, 0);
1434 if (avctx->width > 0 && avctx->height > 0) {
1435 if (av_image_check_sar(avctx->width, avctx->height,
1436 avctx->sample_aspect_ratio) < 0) {
1437 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1438 avctx->sample_aspect_ratio.num,
1439 avctx->sample_aspect_ratio.den);
1440 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1444 /* if the decoder init function was already called previously,
1445 * free the already allocated subtitle_header before overwriting it */
1446 if (av_codec_is_decoder(codec))
1447 av_freep(&avctx->subtitle_header);
1449 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1450 ret = AVERROR(EINVAL);
1454 avctx->codec = codec;
1455 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1456 avctx->codec_id == AV_CODEC_ID_NONE) {
1457 avctx->codec_type = codec->type;
1458 avctx->codec_id = codec->id;
1460 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1461 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1462 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1463 ret = AVERROR(EINVAL);
1466 avctx->frame_number = 0;
1467 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1469 if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1470 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1471 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1473 av_log(avctx, AV_LOG_ERROR,
1474 "The %s '%s' is experimental but experimental codecs are not enabled, "
1475 "add '-strict %d' if you want to use it.\n",
1476 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1477 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1478 if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
1479 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1480 codec_string, codec2->name);
1481 ret = AVERROR_EXPERIMENTAL;
1485 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1486 (!avctx->time_base.num || !avctx->time_base.den)) {
1487 avctx->time_base.num = 1;
1488 avctx->time_base.den = avctx->sample_rate;
1492 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1494 if (CONFIG_FRAME_THREAD_ENCODER) {
1495 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1496 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1497 ff_lock_avcodec(avctx, codec);
1503 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1504 ret = ff_thread_init(avctx);
1509 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
1510 avctx->thread_count = 1;
1512 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1513 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1514 avctx->codec->max_lowres);
1515 ret = AVERROR(EINVAL);
1520 if (avctx->debug_mv)
1521 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1522 "see the codecview filter instead.\n");
1525 if (av_codec_is_encoder(avctx->codec)) {
1527 if (avctx->codec->sample_fmts) {
1528 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1529 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1531 if (avctx->channels == 1 &&
1532 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1533 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1534 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1538 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1540 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1541 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1542 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1543 ret = AVERROR(EINVAL);
1547 if (avctx->codec->pix_fmts) {
1548 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1549 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1551 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1552 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1553 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1555 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1556 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1557 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1558 ret = AVERROR(EINVAL);
1561 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1562 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1563 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1564 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1565 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1566 avctx->color_range = AVCOL_RANGE_JPEG;
1568 if (avctx->codec->supported_samplerates) {
1569 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1570 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1572 if (avctx->codec->supported_samplerates[i] == 0) {
1573 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1574 avctx->sample_rate);
1575 ret = AVERROR(EINVAL);
1579 if (avctx->sample_rate < 0) {
1580 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1581 avctx->sample_rate);
1582 ret = AVERROR(EINVAL);
1585 if (avctx->codec->channel_layouts) {
1586 if (!avctx->channel_layout) {
1587 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1589 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1590 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1592 if (avctx->codec->channel_layouts[i] == 0) {
1594 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1595 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1596 ret = AVERROR(EINVAL);
1601 if (avctx->channel_layout && avctx->channels) {
1602 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1603 if (channels != avctx->channels) {
1605 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1606 av_log(avctx, AV_LOG_ERROR,
1607 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1608 buf, channels, avctx->channels);
1609 ret = AVERROR(EINVAL);
1612 } else if (avctx->channel_layout) {
1613 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1615 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1616 if (avctx->width <= 0 || avctx->height <= 0) {
1617 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1618 ret = AVERROR(EINVAL);
1622 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1623 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1624 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1627 if (!avctx->rc_initial_buffer_occupancy)
1628 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1631 avctx->pts_correction_num_faulty_pts =
1632 avctx->pts_correction_num_faulty_dts = 0;
1633 avctx->pts_correction_last_pts =
1634 avctx->pts_correction_last_dts = INT64_MIN;
1636 if ( !CONFIG_GRAY && avctx->flags & CODEC_FLAG_GRAY
1637 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1638 av_log(avctx, AV_LOG_WARNING,
1639 "gray decoding requested but not enabled at configuration time\n");
1641 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1642 || avctx->internal->frame_thread_encoder)) {
1643 ret = avctx->codec->init(avctx);
1651 #if FF_API_AUDIOENC_DELAY
1652 if (av_codec_is_encoder(avctx->codec))
1653 avctx->delay = avctx->initial_padding;
1656 if (av_codec_is_decoder(avctx->codec)) {
1657 if (!avctx->bit_rate)
1658 avctx->bit_rate = get_bit_rate(avctx);
1659 /* validate channel layout from the decoder */
1660 if (avctx->channel_layout) {
1661 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1662 if (!avctx->channels)
1663 avctx->channels = channels;
1664 else if (channels != avctx->channels) {
1666 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1667 av_log(avctx, AV_LOG_WARNING,
1668 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1669 "ignoring specified channel layout\n",
1670 buf, channels, avctx->channels);
1671 avctx->channel_layout = 0;
1674 if (avctx->channels && avctx->channels < 0 ||
1675 avctx->channels > FF_SANE_NB_CHANNELS) {
1676 ret = AVERROR(EINVAL);
1679 if (avctx->sub_charenc) {
1680 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1681 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1682 "supported with subtitles codecs\n");
1683 ret = AVERROR(EINVAL);
1685 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1686 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1687 "subtitles character encoding will be ignored\n",
1688 avctx->codec_descriptor->name);
1689 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1691 /* input character encoding is set for a text based subtitle
1692 * codec at this point */
1693 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1694 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1696 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1698 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1699 if (cd == (iconv_t)-1) {
1700 ret = AVERROR(errno);
1701 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1702 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1707 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1708 "conversion needs a libavcodec built with iconv support "
1709 "for this codec\n");
1710 ret = AVERROR(ENOSYS);
1717 #if FF_API_AVCTX_TIMEBASE
1718 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1719 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1722 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1723 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1727 ff_unlock_avcodec();
1729 av_dict_free(options);
1736 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1737 avctx->codec->close(avctx);
1739 if (codec->priv_class && codec->priv_data_size)
1740 av_opt_free(avctx->priv_data);
1744 av_freep(&avctx->priv_data);
1745 if (avctx->internal) {
1746 av_frame_free(&avctx->internal->to_free);
1747 av_freep(&avctx->internal->pool);
1749 av_freep(&avctx->internal);
1750 avctx->codec = NULL;
1754 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
1756 if (avpkt->size < 0) {
1757 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1758 return AVERROR(EINVAL);
1760 if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1761 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1762 size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
1763 return AVERROR(EINVAL);
1767 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1768 if (!avpkt->data || avpkt->size < size) {
1769 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1770 avpkt->data = avctx->internal->byte_buffer;
1771 avpkt->size = avctx->internal->byte_buffer_size;
1772 #if FF_API_DESTRUCT_PACKET
1773 FF_DISABLE_DEPRECATION_WARNINGS
1774 avpkt->destruct = NULL;
1775 FF_ENABLE_DEPRECATION_WARNINGS
1781 AVBufferRef *buf = avpkt->buf;
1782 #if FF_API_DESTRUCT_PACKET
1783 FF_DISABLE_DEPRECATION_WARNINGS
1784 void *destruct = avpkt->destruct;
1785 FF_ENABLE_DEPRECATION_WARNINGS
1788 if (avpkt->size < size) {
1789 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1790 return AVERROR(EINVAL);
1793 av_init_packet(avpkt);
1794 #if FF_API_DESTRUCT_PACKET
1795 FF_DISABLE_DEPRECATION_WARNINGS
1796 avpkt->destruct = destruct;
1797 FF_ENABLE_DEPRECATION_WARNINGS
1803 int ret = av_new_packet(avpkt, size);
1805 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1810 int ff_alloc_packet(AVPacket *avpkt, int size)
1812 return ff_alloc_packet2(NULL, avpkt, size);
1816 * Pad last frame with silence.
1818 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1820 AVFrame *frame = NULL;
1823 if (!(frame = av_frame_alloc()))
1824 return AVERROR(ENOMEM);
1826 frame->format = src->format;
1827 frame->channel_layout = src->channel_layout;
1828 av_frame_set_channels(frame, av_frame_get_channels(src));
1829 frame->nb_samples = s->frame_size;
1830 ret = av_frame_get_buffer(frame, 32);
1834 ret = av_frame_copy_props(frame, src);
1838 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1839 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1841 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1842 frame->nb_samples - src->nb_samples,
1843 s->channels, s->sample_fmt)) < 0)
1851 av_frame_free(&frame);
1855 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1857 const AVFrame *frame,
1858 int *got_packet_ptr)
1860 AVFrame *extended_frame = NULL;
1861 AVFrame *padded_frame = NULL;
1863 AVPacket user_pkt = *avpkt;
1864 int needs_realloc = !user_pkt.data;
1866 *got_packet_ptr = 0;
1868 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1869 av_free_packet(avpkt);
1870 av_init_packet(avpkt);
1874 /* ensure that extended_data is properly set */
1875 if (frame && !frame->extended_data) {
1876 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1877 avctx->channels > AV_NUM_DATA_POINTERS) {
1878 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1879 "with more than %d channels, but extended_data is not set.\n",
1880 AV_NUM_DATA_POINTERS);
1881 return AVERROR(EINVAL);
1883 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1885 extended_frame = av_frame_alloc();
1886 if (!extended_frame)
1887 return AVERROR(ENOMEM);
1889 memcpy(extended_frame, frame, sizeof(AVFrame));
1890 extended_frame->extended_data = extended_frame->data;
1891 frame = extended_frame;
1894 /* extract audio service type metadata */
1896 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1897 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1898 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1901 /* check for valid frame size */
1903 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1904 if (frame->nb_samples > avctx->frame_size) {
1905 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1906 ret = AVERROR(EINVAL);
1909 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1910 if (frame->nb_samples < avctx->frame_size &&
1911 !avctx->internal->last_audio_frame) {
1912 ret = pad_last_frame(avctx, &padded_frame, frame);
1916 frame = padded_frame;
1917 avctx->internal->last_audio_frame = 1;
1920 if (frame->nb_samples != avctx->frame_size) {
1921 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1922 ret = AVERROR(EINVAL);
1928 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1930 if (*got_packet_ptr) {
1931 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1932 if (avpkt->pts == AV_NOPTS_VALUE)
1933 avpkt->pts = frame->pts;
1934 if (!avpkt->duration)
1935 avpkt->duration = ff_samples_to_time_base(avctx,
1938 avpkt->dts = avpkt->pts;
1943 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1945 if (user_pkt.data) {
1946 if (user_pkt.size >= avpkt->size) {
1947 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1949 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1950 avpkt->size = user_pkt.size;
1953 avpkt->buf = user_pkt.buf;
1954 avpkt->data = user_pkt.data;
1955 #if FF_API_DESTRUCT_PACKET
1956 FF_DISABLE_DEPRECATION_WARNINGS
1957 avpkt->destruct = user_pkt.destruct;
1958 FF_ENABLE_DEPRECATION_WARNINGS
1961 if (av_dup_packet(avpkt) < 0) {
1962 ret = AVERROR(ENOMEM);
1968 if (needs_realloc && avpkt->data) {
1969 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1971 avpkt->data = avpkt->buf->data;
1974 avctx->frame_number++;
1977 if (ret < 0 || !*got_packet_ptr) {
1978 av_free_packet(avpkt);
1979 av_init_packet(avpkt);
1983 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1984 * this needs to be moved to the encoders, but for now we can do it
1985 * here to simplify things */
1986 avpkt->flags |= AV_PKT_FLAG_KEY;
1989 av_frame_free(&padded_frame);
1990 av_free(extended_frame);
1992 #if FF_API_AUDIOENC_DELAY
1993 avctx->delay = avctx->initial_padding;
1999 #if FF_API_OLD_ENCODE_AUDIO
2000 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
2001 uint8_t *buf, int buf_size,
2002 const short *samples)
2006 int ret, samples_size, got_packet;
2008 av_init_packet(&pkt);
2010 pkt.size = buf_size;
2013 frame = av_frame_alloc();
2015 return AVERROR(ENOMEM);
2017 if (avctx->frame_size) {
2018 frame->nb_samples = avctx->frame_size;
2020 /* if frame_size is not set, the number of samples must be
2021 * calculated from the buffer size */
2023 if (!av_get_bits_per_sample(avctx->codec_id)) {
2024 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
2025 "support this codec\n");
2026 av_frame_free(&frame);
2027 return AVERROR(EINVAL);
2029 nb_samples = (int64_t)buf_size * 8 /
2030 (av_get_bits_per_sample(avctx->codec_id) *
2032 if (nb_samples >= INT_MAX) {
2033 av_frame_free(&frame);
2034 return AVERROR(EINVAL);
2036 frame->nb_samples = nb_samples;
2039 /* it is assumed that the samples buffer is large enough based on the
2040 * relevant parameters */
2041 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
2043 avctx->sample_fmt, 1);
2044 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
2046 (const uint8_t *)samples,
2047 samples_size, 1)) < 0) {
2048 av_frame_free(&frame);
2052 /* fabricate frame pts from sample count.
2053 * this is needed because the avcodec_encode_audio() API does not have
2054 * a way for the user to provide pts */
2055 if (avctx->sample_rate && avctx->time_base.num)
2056 frame->pts = ff_samples_to_time_base(avctx,
2057 avctx->internal->sample_count);
2059 frame->pts = AV_NOPTS_VALUE;
2060 avctx->internal->sample_count += frame->nb_samples;
2066 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
2067 if (!ret && got_packet && avctx->coded_frame) {
2068 avctx->coded_frame->pts = pkt.pts;
2069 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2071 /* free any side data since we cannot return it */
2072 av_packet_free_side_data(&pkt);
2074 if (frame && frame->extended_data != frame->data)
2075 av_freep(&frame->extended_data);
2077 av_frame_free(&frame);
2078 return ret ? ret : pkt.size;
2083 #if FF_API_OLD_ENCODE_VIDEO
2084 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2085 const AVFrame *pict)
2088 int ret, got_packet = 0;
2090 if (buf_size < FF_MIN_BUFFER_SIZE) {
2091 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
2095 av_init_packet(&pkt);
2097 pkt.size = buf_size;
2099 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
2100 if (!ret && got_packet && avctx->coded_frame) {
2101 avctx->coded_frame->pts = pkt.pts;
2102 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2105 /* free any side data since we cannot return it */
2106 if (pkt.side_data_elems > 0) {
2108 for (i = 0; i < pkt.side_data_elems; i++)
2109 av_free(pkt.side_data[i].data);
2110 av_freep(&pkt.side_data);
2111 pkt.side_data_elems = 0;
2114 return ret ? ret : pkt.size;
2119 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
2121 const AVFrame *frame,
2122 int *got_packet_ptr)
2125 AVPacket user_pkt = *avpkt;
2126 int needs_realloc = !user_pkt.data;
2128 *got_packet_ptr = 0;
2130 if(CONFIG_FRAME_THREAD_ENCODER &&
2131 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
2132 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
2134 if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
2135 avctx->stats_out[0] = '\0';
2137 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
2138 av_free_packet(avpkt);
2139 av_init_packet(avpkt);
2144 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
2145 return AVERROR(EINVAL);
2147 if (frame && frame->format == AV_PIX_FMT_NONE)
2148 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
2149 if (frame && (frame->width == 0 || frame->height == 0))
2150 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
2152 av_assert0(avctx->codec->encode2);
2154 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2155 av_assert0(ret <= 0);
2157 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2159 if (user_pkt.data) {
2160 if (user_pkt.size >= avpkt->size) {
2161 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2163 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2164 avpkt->size = user_pkt.size;
2167 avpkt->buf = user_pkt.buf;
2168 avpkt->data = user_pkt.data;
2169 #if FF_API_DESTRUCT_PACKET
2170 FF_DISABLE_DEPRECATION_WARNINGS
2171 avpkt->destruct = user_pkt.destruct;
2172 FF_ENABLE_DEPRECATION_WARNINGS
2175 if (av_dup_packet(avpkt) < 0) {
2176 ret = AVERROR(ENOMEM);
2182 if (!*got_packet_ptr)
2184 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
2185 avpkt->pts = avpkt->dts = frame->pts;
2187 if (needs_realloc && avpkt->data) {
2188 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
2190 avpkt->data = avpkt->buf->data;
2193 avctx->frame_number++;
2196 if (ret < 0 || !*got_packet_ptr)
2197 av_free_packet(avpkt);
2199 av_packet_merge_side_data(avpkt);
2205 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2206 const AVSubtitle *sub)
2209 if (sub->start_display_time) {
2210 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2214 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2215 avctx->frame_number++;
2220 * Attempt to guess proper monotonic timestamps for decoded video frames
2221 * which might have incorrect times. Input timestamps may wrap around, in
2222 * which case the output will as well.
2224 * @param pts the pts field of the decoded AVPacket, as passed through
2226 * @param dts the dts field of the decoded AVPacket
2227 * @return one of the input values, may be AV_NOPTS_VALUE
2229 static int64_t guess_correct_pts(AVCodecContext *ctx,
2230 int64_t reordered_pts, int64_t dts)
2232 int64_t pts = AV_NOPTS_VALUE;
2234 if (dts != AV_NOPTS_VALUE) {
2235 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2236 ctx->pts_correction_last_dts = dts;
2237 } else if (reordered_pts != AV_NOPTS_VALUE)
2238 ctx->pts_correction_last_dts = reordered_pts;
2240 if (reordered_pts != AV_NOPTS_VALUE) {
2241 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2242 ctx->pts_correction_last_pts = reordered_pts;
2243 } else if(dts != AV_NOPTS_VALUE)
2244 ctx->pts_correction_last_pts = dts;
2246 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2247 && reordered_pts != AV_NOPTS_VALUE)
2248 pts = reordered_pts;
2255 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2258 const uint8_t *data;
2262 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2266 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) {
2267 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2268 "changes, but PARAM_CHANGE side data was sent to it.\n");
2269 return AVERROR(EINVAL);
2275 flags = bytestream_get_le32(&data);
2278 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2281 val = bytestream_get_le32(&data);
2282 if (val <= 0 || val > INT_MAX) {
2283 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2284 return AVERROR_INVALIDDATA;
2286 avctx->channels = val;
2289 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2292 avctx->channel_layout = bytestream_get_le64(&data);
2295 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2298 val = bytestream_get_le32(&data);
2299 if (val <= 0 || val > INT_MAX) {
2300 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2301 return AVERROR_INVALIDDATA;
2303 avctx->sample_rate = val;
2306 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2309 avctx->width = bytestream_get_le32(&data);
2310 avctx->height = bytestream_get_le32(&data);
2312 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2319 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2320 return AVERROR_INVALIDDATA;
2323 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2327 /* move the original frame to our backup */
2328 av_frame_unref(avci->to_free);
2329 av_frame_move_ref(avci->to_free, frame);
2331 /* now copy everything except the AVBufferRefs back
2332 * note that we make a COPY of the side data, so calling av_frame_free() on
2333 * the caller's frame will work properly */
2334 ret = av_frame_copy_props(frame, avci->to_free);
2338 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2339 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2340 if (avci->to_free->extended_data != avci->to_free->data) {
2341 int planes = av_frame_get_channels(avci->to_free);
2342 int size = planes * sizeof(*frame->extended_data);
2345 av_frame_unref(frame);
2349 frame->extended_data = av_malloc(size);
2350 if (!frame->extended_data) {
2351 av_frame_unref(frame);
2352 return AVERROR(ENOMEM);
2354 memcpy(frame->extended_data, avci->to_free->extended_data,
2357 frame->extended_data = frame->data;
2359 frame->format = avci->to_free->format;
2360 frame->width = avci->to_free->width;
2361 frame->height = avci->to_free->height;
2362 frame->channel_layout = avci->to_free->channel_layout;
2363 frame->nb_samples = avci->to_free->nb_samples;
2364 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2369 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2370 int *got_picture_ptr,
2371 const AVPacket *avpkt)
2373 AVCodecInternal *avci = avctx->internal;
2375 // copy to ensure we do not change avpkt
2376 AVPacket tmp = *avpkt;
2379 return AVERROR(EINVAL);
2380 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2381 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2382 return AVERROR(EINVAL);
2385 *got_picture_ptr = 0;
2386 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2387 return AVERROR(EINVAL);
2389 av_frame_unref(picture);
2391 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2392 int did_split = av_packet_split_side_data(&tmp);
2393 ret = apply_param_change(avctx, &tmp);
2395 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2396 if (avctx->err_recognition & AV_EF_EXPLODE)
2400 avctx->internal->pkt = &tmp;
2401 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2402 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2405 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2407 picture->pkt_dts = avpkt->dts;
2409 if(!avctx->has_b_frames){
2410 av_frame_set_pkt_pos(picture, avpkt->pos);
2412 //FIXME these should be under if(!avctx->has_b_frames)
2413 /* get_buffer is supposed to set frame parameters */
2414 if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
2415 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2416 if (!picture->width) picture->width = avctx->width;
2417 if (!picture->height) picture->height = avctx->height;
2418 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2423 emms_c(); //needed to avoid an emms_c() call before every return;
2425 avctx->internal->pkt = NULL;
2427 av_packet_free_side_data(&tmp);
2432 if (*got_picture_ptr) {
2433 if (!avctx->refcounted_frames) {
2434 int err = unrefcount_frame(avci, picture);
2439 avctx->frame_number++;
2440 av_frame_set_best_effort_timestamp(picture,
2441 guess_correct_pts(avctx,
2445 av_frame_unref(picture);
2449 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2450 * make sure it's set correctly */
2451 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2453 #if FF_API_AVCTX_TIMEBASE
2454 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2455 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2461 #if FF_API_OLD_DECODE_AUDIO
2462 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2463 int *frame_size_ptr,
2466 AVFrame *frame = av_frame_alloc();
2467 int ret, got_frame = 0;
2470 return AVERROR(ENOMEM);
2471 if (avctx->get_buffer != avcodec_default_get_buffer) {
2472 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2473 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2474 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2475 "avcodec_decode_audio4()\n");
2476 avctx->get_buffer = avcodec_default_get_buffer;
2477 avctx->release_buffer = avcodec_default_release_buffer;
2480 ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt);
2482 if (ret >= 0 && got_frame) {
2484 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2485 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2487 avctx->sample_fmt, 1);
2488 if (*frame_size_ptr < data_size) {
2489 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2490 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2491 av_frame_free(&frame);
2492 return AVERROR(EINVAL);
2495 memcpy(samples, frame->extended_data[0], plane_size);
2497 if (planar && avctx->channels > 1) {
2498 uint8_t *out = ((uint8_t *)samples) + plane_size;
2499 for (ch = 1; ch < avctx->channels; ch++) {
2500 memcpy(out, frame->extended_data[ch], plane_size);
2504 *frame_size_ptr = data_size;
2506 *frame_size_ptr = 0;
2508 av_frame_free(&frame);
2514 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2517 const AVPacket *avpkt)
2519 AVCodecInternal *avci = avctx->internal;
2524 if (!avpkt->data && avpkt->size) {
2525 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2526 return AVERROR(EINVAL);
2529 return AVERROR(EINVAL);
2530 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2531 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2532 return AVERROR(EINVAL);
2535 av_frame_unref(frame);
2537 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2540 uint32_t discard_padding = 0;
2541 uint8_t skip_reason = 0;
2542 uint8_t discard_reason = 0;
2543 // copy to ensure we do not change avpkt
2544 AVPacket tmp = *avpkt;
2545 int did_split = av_packet_split_side_data(&tmp);
2546 ret = apply_param_change(avctx, &tmp);
2548 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2549 if (avctx->err_recognition & AV_EF_EXPLODE)
2553 avctx->internal->pkt = &tmp;
2554 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2555 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2557 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2558 av_assert0(ret <= tmp.size);
2559 frame->pkt_dts = avpkt->dts;
2561 if (ret >= 0 && *got_frame_ptr) {
2562 avctx->frame_number++;
2563 av_frame_set_best_effort_timestamp(frame,
2564 guess_correct_pts(avctx,
2567 if (frame->format == AV_SAMPLE_FMT_NONE)
2568 frame->format = avctx->sample_fmt;
2569 if (!frame->channel_layout)
2570 frame->channel_layout = avctx->channel_layout;
2571 if (!av_frame_get_channels(frame))
2572 av_frame_set_channels(frame, avctx->channels);
2573 if (!frame->sample_rate)
2574 frame->sample_rate = avctx->sample_rate;
2577 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2578 if(side && side_size>=10) {
2579 avctx->internal->skip_samples = AV_RL32(side);
2580 discard_padding = AV_RL32(side + 4);
2581 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2582 avctx->internal->skip_samples, (int)discard_padding);
2583 skip_reason = AV_RL8(side + 8);
2584 discard_reason = AV_RL8(side + 9);
2586 if (avctx->internal->skip_samples && *got_frame_ptr &&
2587 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2588 if(frame->nb_samples <= avctx->internal->skip_samples){
2590 avctx->internal->skip_samples -= frame->nb_samples;
2591 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2592 avctx->internal->skip_samples);
2594 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2595 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2596 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2597 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2598 (AVRational){1, avctx->sample_rate},
2599 avctx->pkt_timebase);
2600 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2601 frame->pkt_pts += diff_ts;
2602 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2603 frame->pkt_dts += diff_ts;
2604 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2605 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2607 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2609 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2610 avctx->internal->skip_samples, frame->nb_samples);
2611 frame->nb_samples -= avctx->internal->skip_samples;
2612 avctx->internal->skip_samples = 0;
2616 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2617 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2618 if (discard_padding == frame->nb_samples) {
2621 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2622 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2623 (AVRational){1, avctx->sample_rate},
2624 avctx->pkt_timebase);
2625 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2626 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2628 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2630 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2631 (int)discard_padding, frame->nb_samples);
2632 frame->nb_samples -= discard_padding;
2636 if ((avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2637 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2639 AV_WL32(fside->data, avctx->internal->skip_samples);
2640 AV_WL32(fside->data + 4, discard_padding);
2641 AV_WL8(fside->data + 8, skip_reason);
2642 AV_WL8(fside->data + 9, discard_reason);
2643 avctx->internal->skip_samples = 0;
2647 avctx->internal->pkt = NULL;
2649 av_packet_free_side_data(&tmp);
2654 if (ret >= 0 && *got_frame_ptr) {
2655 if (!avctx->refcounted_frames) {
2656 int err = unrefcount_frame(avci, frame);
2661 av_frame_unref(frame);
2667 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2668 static int recode_subtitle(AVCodecContext *avctx,
2669 AVPacket *outpkt, const AVPacket *inpkt)
2672 iconv_t cd = (iconv_t)-1;
2679 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2683 cd = iconv_open("UTF-8", avctx->sub_charenc);
2684 av_assert0(cd != (iconv_t)-1);
2689 if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) {
2690 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2691 ret = AVERROR(ENOMEM);
2695 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2698 outpkt->buf = tmp.buf;
2699 outpkt->data = tmp.data;
2700 outpkt->size = tmp.size;
2701 outb = outpkt->data;
2702 outl = outpkt->size;
2704 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2705 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2706 outl >= outpkt->size || inl != 0) {
2707 ret = FFMIN(AVERROR(errno), -1);
2708 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2709 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2710 av_free_packet(&tmp);
2713 outpkt->size -= outl;
2714 memset(outpkt->data + outpkt->size, 0, outl);
2717 if (cd != (iconv_t)-1)
2721 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2722 return AVERROR(EINVAL);
2726 static int utf8_check(const uint8_t *str)
2728 const uint8_t *byte;
2729 uint32_t codepoint, min;
2733 GET_UTF8(codepoint, *(byte++), return 0;);
2734 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2735 1 << (5 * (byte - str) - 4);
2736 if (codepoint < min || codepoint >= 0x110000 ||
2737 codepoint == 0xFFFE /* BOM */ ||
2738 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2745 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2751 if (!avpkt->data && avpkt->size) {
2752 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2753 return AVERROR(EINVAL);
2756 return AVERROR(EINVAL);
2757 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2758 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2759 return AVERROR(EINVAL);
2763 get_subtitle_defaults(sub);
2765 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
2766 AVPacket pkt_recoded;
2767 AVPacket tmp = *avpkt;
2768 int did_split = av_packet_split_side_data(&tmp);
2769 //apply_param_change(avctx, &tmp);
2772 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2774 * If the side data is smaller than the buffer padding size, the
2775 * remaining bytes should have already been filled with zeros by the
2776 * original packet allocation anyway. */
2777 memset(tmp.data + tmp.size, 0,
2778 FFMIN(avpkt->size - tmp.size, FF_INPUT_BUFFER_PADDING_SIZE));
2782 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2786 avctx->internal->pkt = &pkt_recoded;
2788 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2789 sub->pts = av_rescale_q(avpkt->pts,
2790 avctx->pkt_timebase, AV_TIME_BASE_Q);
2791 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2792 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2793 !!*got_sub_ptr >= !!sub->num_rects);
2795 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2796 avctx->pkt_timebase.num) {
2797 AVRational ms = { 1, 1000 };
2798 sub->end_display_time = av_rescale_q(avpkt->duration,
2799 avctx->pkt_timebase, ms);
2802 for (i = 0; i < sub->num_rects; i++) {
2803 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2804 av_log(avctx, AV_LOG_ERROR,
2805 "Invalid UTF-8 in decoded subtitles text; "
2806 "maybe missing -sub_charenc option\n");
2807 avsubtitle_free(sub);
2808 return AVERROR_INVALIDDATA;
2812 if (tmp.data != pkt_recoded.data) { // did we recode?
2813 /* prevent from destroying side data from original packet */
2814 pkt_recoded.side_data = NULL;
2815 pkt_recoded.side_data_elems = 0;
2817 av_free_packet(&pkt_recoded);
2819 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2821 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2823 avctx->internal->pkt = NULL;
2827 av_packet_free_side_data(&tmp);
2833 avctx->frame_number++;
2839 void avsubtitle_free(AVSubtitle *sub)
2843 for (i = 0; i < sub->num_rects; i++) {
2844 av_freep(&sub->rects[i]->pict.data[0]);
2845 av_freep(&sub->rects[i]->pict.data[1]);
2846 av_freep(&sub->rects[i]->pict.data[2]);
2847 av_freep(&sub->rects[i]->pict.data[3]);
2848 av_freep(&sub->rects[i]->text);
2849 av_freep(&sub->rects[i]->ass);
2850 av_freep(&sub->rects[i]);
2853 av_freep(&sub->rects);
2855 memset(sub, 0, sizeof(AVSubtitle));
2858 av_cold int avcodec_close(AVCodecContext *avctx)
2863 if (avcodec_is_open(avctx)) {
2864 FramePool *pool = avctx->internal->pool;
2866 if (CONFIG_FRAME_THREAD_ENCODER &&
2867 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2868 ff_frame_thread_encoder_free(avctx);
2870 if (HAVE_THREADS && avctx->internal->thread_ctx)
2871 ff_thread_free(avctx);
2872 if (avctx->codec && avctx->codec->close)
2873 avctx->codec->close(avctx);
2874 avctx->coded_frame = NULL;
2875 avctx->internal->byte_buffer_size = 0;
2876 av_freep(&avctx->internal->byte_buffer);
2877 av_frame_free(&avctx->internal->to_free);
2878 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2879 av_buffer_pool_uninit(&pool->pools[i]);
2880 av_freep(&avctx->internal->pool);
2882 if (avctx->hwaccel && avctx->hwaccel->uninit)
2883 avctx->hwaccel->uninit(avctx);
2884 av_freep(&avctx->internal->hwaccel_priv_data);
2886 av_freep(&avctx->internal);
2889 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2890 av_opt_free(avctx->priv_data);
2892 av_freep(&avctx->priv_data);
2893 if (av_codec_is_encoder(avctx->codec))
2894 av_freep(&avctx->extradata);
2895 avctx->codec = NULL;
2896 avctx->active_thread_type = 0;
2901 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2904 //This is for future deprecatec codec ids, its empty since
2905 //last major bump but will fill up again over time, please don't remove it
2906 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2907 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2908 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2909 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2910 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2911 case AV_CODEC_ID_PCM_S16BE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S16BE_PLANAR;
2912 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2913 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2914 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2915 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2916 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2917 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2918 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2919 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2920 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2921 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2922 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2923 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2924 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2925 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2926 default : return id;
2930 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2932 AVCodec *p, *experimental = NULL;
2934 id= remap_deprecated_codec_id(id);
2936 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2938 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
2945 return experimental;
2948 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2950 return find_encdec(id, 1);
2953 AVCodec *avcodec_find_encoder_by_name(const char *name)
2960 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2967 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2969 return find_encdec(id, 0);
2972 AVCodec *avcodec_find_decoder_by_name(const char *name)
2979 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2986 const char *avcodec_get_name(enum AVCodecID id)
2988 const AVCodecDescriptor *cd;
2991 if (id == AV_CODEC_ID_NONE)
2993 cd = avcodec_descriptor_get(id);
2996 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2997 codec = avcodec_find_decoder(id);
3000 codec = avcodec_find_encoder(id);
3003 return "unknown_codec";
3006 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3008 int i, len, ret = 0;
3010 #define TAG_PRINT(x) \
3011 (((x) >= '0' && (x) <= '9') || \
3012 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3013 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3015 for (i = 0; i < 4; i++) {
3016 len = snprintf(buf, buf_size,
3017 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3019 buf_size = buf_size > len ? buf_size - len : 0;
3026 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3028 const char *codec_type;
3029 const char *codec_name;
3030 const char *profile = NULL;
3034 AVRational display_aspect_ratio;
3035 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3037 if (!buf || buf_size <= 0)
3039 codec_type = av_get_media_type_string(enc->codec_type);
3040 codec_name = avcodec_get_name(enc->codec_id);
3041 if (enc->profile != FF_PROFILE_UNKNOWN) {
3045 p = encode ? avcodec_find_encoder(enc->codec_id) :
3046 avcodec_find_decoder(enc->codec_id);
3048 profile = av_get_profile_name(p, enc->profile);
3051 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3053 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3055 if (enc->codec && strcmp(enc->codec->name, codec_name))
3056 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3059 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3060 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3061 && av_log_get_level() >= AV_LOG_VERBOSE
3063 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3064 ", %d reference frame%s",
3065 enc->refs, enc->refs > 1 ? "s" : "");
3067 if (enc->codec_tag) {
3069 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3070 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3071 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3074 switch (enc->codec_type) {
3075 case AVMEDIA_TYPE_VIDEO:
3077 char detail[256] = "(";
3079 av_strlcat(buf, separator, buf_size);
3081 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3082 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3083 av_get_pix_fmt_name(enc->pix_fmt));
3084 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3085 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
3086 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3087 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
3088 av_strlcatf(detail, sizeof(detail), "%s, ",
3089 av_color_range_name(enc->color_range));
3091 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3092 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
3093 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3094 if (enc->colorspace != (int)enc->color_primaries ||
3095 enc->colorspace != (int)enc->color_trc) {
3097 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3098 av_color_space_name(enc->colorspace),
3099 av_color_primaries_name(enc->color_primaries),
3100 av_color_transfer_name(enc->color_trc));
3102 av_strlcatf(detail, sizeof(detail), "%s, ",
3103 av_get_colorspace_name(enc->colorspace));
3106 if (av_log_get_level() >= AV_LOG_DEBUG &&
3107 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
3108 av_strlcatf(detail, sizeof(detail), "%s, ",
3109 av_chroma_location_name(enc->chroma_sample_location));
3111 if (strlen(detail) > 1) {
3112 detail[strlen(detail) - 2] = 0;
3113 av_strlcatf(buf, buf_size, "%s)", detail);
3118 av_strlcat(buf, new_line ? separator : ", ", buf_size);
3120 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3122 enc->width, enc->height);
3124 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3125 (enc->width != enc->coded_width ||
3126 enc->height != enc->coded_height))
3127 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3128 " (%dx%d)", enc->coded_width, enc->coded_height);
3130 if (enc->sample_aspect_ratio.num) {
3131 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3132 enc->width * enc->sample_aspect_ratio.num,
3133 enc->height * enc->sample_aspect_ratio.den,
3135 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3136 " [SAR %d:%d DAR %d:%d]",
3137 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
3138 display_aspect_ratio.num, display_aspect_ratio.den);
3140 if (av_log_get_level() >= AV_LOG_DEBUG) {
3141 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3142 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3144 enc->time_base.num / g, enc->time_base.den / g);
3148 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3149 ", q=%d-%d", enc->qmin, enc->qmax);
3152 case AVMEDIA_TYPE_AUDIO:
3153 av_strlcat(buf, separator, buf_size);
3155 if (enc->sample_rate) {
3156 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3157 "%d Hz, ", enc->sample_rate);
3159 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3160 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3161 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3162 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3164 if ( enc->bits_per_raw_sample > 0
3165 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
3166 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3167 " (%d bit)", enc->bits_per_raw_sample);
3169 case AVMEDIA_TYPE_DATA:
3170 if (av_log_get_level() >= AV_LOG_DEBUG) {
3171 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3173 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3175 enc->time_base.num / g, enc->time_base.den / g);
3178 case AVMEDIA_TYPE_SUBTITLE:
3180 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3181 ", %dx%d", enc->width, enc->height);
3187 if (enc->flags & CODEC_FLAG_PASS1)
3188 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3190 if (enc->flags & CODEC_FLAG_PASS2)
3191 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3194 bitrate = get_bit_rate(enc);
3196 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3197 ", %d kb/s", bitrate / 1000);
3198 } else if (enc->rc_max_rate > 0) {
3199 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3200 ", max. %d kb/s", enc->rc_max_rate / 1000);
3204 const char *av_get_profile_name(const AVCodec *codec, int profile)
3207 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3210 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3211 if (p->profile == profile)
3217 unsigned avcodec_version(void)
3219 // av_assert0(AV_CODEC_ID_V410==164);
3220 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3221 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3222 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3223 av_assert0(AV_CODEC_ID_SRT==94216);
3224 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3226 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
3227 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
3228 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
3229 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
3230 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
3231 return LIBAVCODEC_VERSION_INT;
3234 const char *avcodec_configuration(void)
3236 return FFMPEG_CONFIGURATION;
3239 const char *avcodec_license(void)
3241 #define LICENSE_PREFIX "libavcodec license: "
3242 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3245 void avcodec_flush_buffers(AVCodecContext *avctx)
3247 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3248 ff_thread_flush(avctx);
3249 else if (avctx->codec->flush)
3250 avctx->codec->flush(avctx);
3252 avctx->pts_correction_last_pts =
3253 avctx->pts_correction_last_dts = INT64_MIN;
3255 if (!avctx->refcounted_frames)
3256 av_frame_unref(avctx->internal->to_free);
3259 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3262 case AV_CODEC_ID_8SVX_EXP:
3263 case AV_CODEC_ID_8SVX_FIB:
3264 case AV_CODEC_ID_ADPCM_CT:
3265 case AV_CODEC_ID_ADPCM_IMA_APC:
3266 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3267 case AV_CODEC_ID_ADPCM_IMA_OKI:
3268 case AV_CODEC_ID_ADPCM_IMA_WS:
3269 case AV_CODEC_ID_ADPCM_G722:
3270 case AV_CODEC_ID_ADPCM_YAMAHA:
3272 case AV_CODEC_ID_DSD_LSBF:
3273 case AV_CODEC_ID_DSD_MSBF:
3274 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3275 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3276 case AV_CODEC_ID_PCM_ALAW:
3277 case AV_CODEC_ID_PCM_MULAW:
3278 case AV_CODEC_ID_PCM_S8:
3279 case AV_CODEC_ID_PCM_S8_PLANAR:
3280 case AV_CODEC_ID_PCM_U8:
3281 case AV_CODEC_ID_PCM_ZORK:
3283 case AV_CODEC_ID_PCM_S16BE:
3284 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3285 case AV_CODEC_ID_PCM_S16LE:
3286 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3287 case AV_CODEC_ID_PCM_U16BE:
3288 case AV_CODEC_ID_PCM_U16LE:
3290 case AV_CODEC_ID_PCM_S24DAUD:
3291 case AV_CODEC_ID_PCM_S24BE:
3292 case AV_CODEC_ID_PCM_S24LE:
3293 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3294 case AV_CODEC_ID_PCM_U24BE:
3295 case AV_CODEC_ID_PCM_U24LE:
3297 case AV_CODEC_ID_PCM_S32BE:
3298 case AV_CODEC_ID_PCM_S32LE:
3299 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3300 case AV_CODEC_ID_PCM_U32BE:
3301 case AV_CODEC_ID_PCM_U32LE:
3302 case AV_CODEC_ID_PCM_F32BE:
3303 case AV_CODEC_ID_PCM_F32LE:
3305 case AV_CODEC_ID_PCM_F64BE:
3306 case AV_CODEC_ID_PCM_F64LE:
3313 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3315 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3316 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3317 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3318 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3319 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3320 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3321 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3322 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3323 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3324 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3325 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3327 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3328 return AV_CODEC_ID_NONE;
3329 if (be < 0 || be > 1)
3331 return map[fmt][be];
3334 int av_get_bits_per_sample(enum AVCodecID codec_id)
3337 case AV_CODEC_ID_ADPCM_SBPRO_2:
3339 case AV_CODEC_ID_ADPCM_SBPRO_3:
3341 case AV_CODEC_ID_ADPCM_SBPRO_4:
3342 case AV_CODEC_ID_ADPCM_IMA_WAV:
3343 case AV_CODEC_ID_ADPCM_IMA_QT:
3344 case AV_CODEC_ID_ADPCM_SWF:
3345 case AV_CODEC_ID_ADPCM_MS:
3348 return av_get_exact_bits_per_sample(codec_id);
3352 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3354 int id, sr, ch, ba, tag, bps;
3356 id = avctx->codec_id;
3357 sr = avctx->sample_rate;
3358 ch = avctx->channels;
3359 ba = avctx->block_align;
3360 tag = avctx->codec_tag;
3361 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3363 /* codecs with an exact constant bits per sample */
3364 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3365 return (frame_bytes * 8LL) / (bps * ch);
3366 bps = avctx->bits_per_coded_sample;
3368 /* codecs with a fixed packet duration */
3370 case AV_CODEC_ID_ADPCM_ADX: return 32;
3371 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3372 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3373 case AV_CODEC_ID_AMR_NB:
3374 case AV_CODEC_ID_EVRC:
3375 case AV_CODEC_ID_GSM:
3376 case AV_CODEC_ID_QCELP:
3377 case AV_CODEC_ID_RA_288: return 160;
3378 case AV_CODEC_ID_AMR_WB:
3379 case AV_CODEC_ID_GSM_MS: return 320;
3380 case AV_CODEC_ID_MP1: return 384;
3381 case AV_CODEC_ID_ATRAC1: return 512;
3382 case AV_CODEC_ID_ATRAC3: return 1024;
3383 case AV_CODEC_ID_ATRAC3P: return 2048;
3384 case AV_CODEC_ID_MP2:
3385 case AV_CODEC_ID_MUSEPACK7: return 1152;
3386 case AV_CODEC_ID_AC3: return 1536;
3390 /* calc from sample rate */
3391 if (id == AV_CODEC_ID_TTA)
3392 return 256 * sr / 245;
3395 /* calc from sample rate and channels */
3396 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3397 return (480 << (sr / 22050)) / ch;
3402 /* calc from block_align */
3403 if (id == AV_CODEC_ID_SIPR) {
3405 case 20: return 160;
3406 case 19: return 144;
3407 case 29: return 288;
3408 case 37: return 480;
3410 } else if (id == AV_CODEC_ID_ILBC) {
3412 case 38: return 160;
3413 case 50: return 240;
3418 if (frame_bytes > 0) {
3419 /* calc from frame_bytes only */
3420 if (id == AV_CODEC_ID_TRUESPEECH)
3421 return 240 * (frame_bytes / 32);
3422 if (id == AV_CODEC_ID_NELLYMOSER)
3423 return 256 * (frame_bytes / 64);
3424 if (id == AV_CODEC_ID_RA_144)
3425 return 160 * (frame_bytes / 20);
3426 if (id == AV_CODEC_ID_G723_1)
3427 return 240 * (frame_bytes / 24);
3430 /* calc from frame_bytes and bits_per_coded_sample */
3431 if (id == AV_CODEC_ID_ADPCM_G726)
3432 return frame_bytes * 8 / bps;
3436 /* calc from frame_bytes and channels */
3438 case AV_CODEC_ID_ADPCM_AFC:
3439 return frame_bytes / (9 * ch) * 16;
3440 case AV_CODEC_ID_ADPCM_DTK:
3441 return frame_bytes / (16 * ch) * 28;
3442 case AV_CODEC_ID_ADPCM_4XM:
3443 case AV_CODEC_ID_ADPCM_IMA_ISS:
3444 return (frame_bytes - 4 * ch) * 2 / ch;
3445 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3446 return (frame_bytes - 4) * 2 / ch;
3447 case AV_CODEC_ID_ADPCM_IMA_AMV:
3448 return (frame_bytes - 8) * 2 / ch;
3449 case AV_CODEC_ID_ADPCM_THP:
3450 case AV_CODEC_ID_ADPCM_THP_LE:
3451 if (avctx->extradata)
3452 return frame_bytes * 14 / (8 * ch);
3454 case AV_CODEC_ID_ADPCM_XA:
3455 return (frame_bytes / 128) * 224 / ch;
3456 case AV_CODEC_ID_INTERPLAY_DPCM:
3457 return (frame_bytes - 6 - ch) / ch;
3458 case AV_CODEC_ID_ROQ_DPCM:
3459 return (frame_bytes - 8) / ch;
3460 case AV_CODEC_ID_XAN_DPCM:
3461 return (frame_bytes - 2 * ch) / ch;
3462 case AV_CODEC_ID_MACE3:
3463 return 3 * frame_bytes / ch;
3464 case AV_CODEC_ID_MACE6:
3465 return 6 * frame_bytes / ch;
3466 case AV_CODEC_ID_PCM_LXF:
3467 return 2 * (frame_bytes / (5 * ch));
3468 case AV_CODEC_ID_IAC:
3469 case AV_CODEC_ID_IMC:
3470 return 4 * frame_bytes / ch;
3474 /* calc from frame_bytes, channels, and codec_tag */
3475 if (id == AV_CODEC_ID_SOL_DPCM) {
3477 return frame_bytes / ch;
3479 return frame_bytes * 2 / ch;
3484 /* calc from frame_bytes, channels, and block_align */
3485 int blocks = frame_bytes / ba;
3486 switch (avctx->codec_id) {
3487 case AV_CODEC_ID_ADPCM_IMA_WAV:
3488 if (bps < 2 || bps > 5)
3490 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3491 case AV_CODEC_ID_ADPCM_IMA_DK3:
3492 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3493 case AV_CODEC_ID_ADPCM_IMA_DK4:
3494 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3495 case AV_CODEC_ID_ADPCM_IMA_RAD:
3496 return blocks * ((ba - 4 * ch) * 2 / ch);
3497 case AV_CODEC_ID_ADPCM_MS:
3498 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3503 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3504 switch (avctx->codec_id) {
3505 case AV_CODEC_ID_PCM_DVD:
3508 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3509 case AV_CODEC_ID_PCM_BLURAY:
3512 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3513 case AV_CODEC_ID_S302M:
3514 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3520 /* Fall back on using frame_size */
3521 if (avctx->frame_size > 1 && frame_bytes)
3522 return avctx->frame_size;
3524 //For WMA we currently have no other means to calculate duration thus we
3525 //do it here by assuming CBR, which is true for all known cases.
3526 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3527 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3528 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3535 int ff_thread_init(AVCodecContext *s)
3542 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3556 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3559 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3563 #if FF_API_MISSING_SAMPLE
3564 FF_DISABLE_DEPRECATION_WARNINGS
3565 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3567 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3568 "version to the newest one from Git. If the problem still "
3569 "occurs, it means that your file has a feature which has not "
3570 "been implemented.\n", feature);
3572 av_log_ask_for_sample(avc, NULL);
3575 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3577 va_list argument_list;
3579 va_start(argument_list, msg);
3582 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3583 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3584 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3585 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3587 va_end(argument_list);
3589 FF_ENABLE_DEPRECATION_WARNINGS
3590 #endif /* FF_API_MISSING_SAMPLE */
3592 static AVHWAccel *first_hwaccel = NULL;
3593 static AVHWAccel **last_hwaccel = &first_hwaccel;
3595 void av_register_hwaccel(AVHWAccel *hwaccel)
3597 AVHWAccel **p = last_hwaccel;
3598 hwaccel->next = NULL;
3599 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3601 last_hwaccel = &hwaccel->next;
3604 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3606 return hwaccel ? hwaccel->next : first_hwaccel;
3609 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3612 // There is no good way to rollback a failure to destroy the
3613 // mutex, so we ignore failures.
3614 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3615 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3618 avformat_mutex = NULL;
3622 void *new_codec_mutex = NULL;
3623 void *new_avformat_mutex = NULL;
3625 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3626 return err > 0 ? AVERROR_UNKNOWN : err;
3628 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3629 // Ignore failures to destroy the newly created mutex.
3630 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3631 return err > 0 ? AVERROR_UNKNOWN : err;
3634 codec_mutex = new_codec_mutex;
3635 avformat_mutex = new_avformat_mutex;
3641 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3644 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3648 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1 &&
3649 !(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE)) {
3650 av_log(log_ctx, AV_LOG_ERROR,
3651 "Insufficient thread locking. At least %d threads are "
3652 "calling avcodec_open2() at the same time right now.\n",
3653 entangled_thread_counter);
3655 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3656 ff_avcodec_locked = 1;
3657 ff_unlock_avcodec();
3658 return AVERROR(EINVAL);
3660 av_assert0(!ff_avcodec_locked);
3661 ff_avcodec_locked = 1;
3665 int ff_unlock_avcodec(void)
3667 av_assert0(ff_avcodec_locked);
3668 ff_avcodec_locked = 0;
3669 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3671 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3678 int avpriv_lock_avformat(void)
3681 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3687 int avpriv_unlock_avformat(void)
3690 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3696 unsigned int avpriv_toupper4(unsigned int x)
3698 return av_toupper(x & 0xFF) +
3699 (av_toupper((x >> 8) & 0xFF) << 8) +
3700 (av_toupper((x >> 16) & 0xFF) << 16) +
3701 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3704 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3708 dst->owner = src->owner;
3710 ret = av_frame_ref(dst->f, src->f);
3714 av_assert0(!dst->progress);
3716 if (src->progress &&
3717 !(dst->progress = av_buffer_ref(src->progress))) {
3718 ff_thread_release_buffer(dst->owner, dst);
3719 return AVERROR(ENOMEM);
3727 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3729 return ff_get_format(avctx, fmt);
3732 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3735 return ff_get_buffer(avctx, f->f, flags);
3738 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3741 av_frame_unref(f->f);
3744 void ff_thread_finish_setup(AVCodecContext *avctx)
3748 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3752 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3756 int ff_thread_can_start_frame(AVCodecContext *avctx)
3761 int ff_alloc_entries(AVCodecContext *avctx, int count)
3766 void ff_reset_entries(AVCodecContext *avctx)
3770 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3774 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3780 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3782 AVCodec *c= avcodec_find_decoder(codec_id);
3784 c= avcodec_find_encoder(codec_id);
3788 if (codec_id <= AV_CODEC_ID_NONE)
3789 return AVMEDIA_TYPE_UNKNOWN;
3790 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3791 return AVMEDIA_TYPE_VIDEO;
3792 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3793 return AVMEDIA_TYPE_AUDIO;
3794 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3795 return AVMEDIA_TYPE_SUBTITLE;
3797 return AVMEDIA_TYPE_UNKNOWN;
3800 int avcodec_is_open(AVCodecContext *s)
3802 return !!s->internal;
3805 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3810 ret = av_bprint_finalize(buf, &str);
3813 if (!av_bprint_is_complete(buf)) {
3815 return AVERROR(ENOMEM);
3818 avctx->extradata = str;
3819 /* Note: the string is NUL terminated (so extradata can be read as a
3820 * string), but the ending character is not accounted in the size (in
3821 * binary formats you are likely not supposed to mux that character). When
3822 * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE
3824 avctx->extradata_size = buf->len;
3828 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3830 uint32_t *av_restrict state)
3834 av_assert0(p <= end);
3838 for (i = 0; i < 3; i++) {
3839 uint32_t tmp = *state << 8;
3840 *state = tmp + *(p++);
3841 if (tmp == 0x100 || p == end)
3846 if (p[-1] > 1 ) p += 3;
3847 else if (p[-2] ) p += 2;
3848 else if (p[-3]|(p[-1]-1)) p++;
3855 p = FFMIN(p, end) - 4;
3856 *state = AV_RB32(p);