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 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
1298 return codec->properties;
1301 int av_codec_get_max_lowres(const AVCodec *codec)
1303 return codec->max_lowres;
1306 static void get_subtitle_defaults(AVSubtitle *sub)
1308 memset(sub, 0, sizeof(*sub));
1309 sub->pts = AV_NOPTS_VALUE;
1312 static int get_bit_rate(AVCodecContext *ctx)
1315 int bits_per_sample;
1317 switch (ctx->codec_type) {
1318 case AVMEDIA_TYPE_VIDEO:
1319 case AVMEDIA_TYPE_DATA:
1320 case AVMEDIA_TYPE_SUBTITLE:
1321 case AVMEDIA_TYPE_ATTACHMENT:
1322 bit_rate = ctx->bit_rate;
1324 case AVMEDIA_TYPE_AUDIO:
1325 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1326 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1335 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1339 ff_unlock_avcodec();
1341 ret = avcodec_open2(avctx, codec, options);
1343 ff_lock_avcodec(avctx, codec);
1347 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1350 AVDictionary *tmp = NULL;
1352 if (avcodec_is_open(avctx))
1355 if ((!codec && !avctx->codec)) {
1356 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1357 return AVERROR(EINVAL);
1359 if ((codec && avctx->codec && codec != avctx->codec)) {
1360 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1361 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1362 return AVERROR(EINVAL);
1365 codec = avctx->codec;
1367 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1368 return AVERROR(EINVAL);
1371 av_dict_copy(&tmp, *options, 0);
1373 ret = ff_lock_avcodec(avctx, codec);
1377 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1378 if (!avctx->internal) {
1379 ret = AVERROR(ENOMEM);
1383 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1384 if (!avctx->internal->pool) {
1385 ret = AVERROR(ENOMEM);
1389 avctx->internal->to_free = av_frame_alloc();
1390 if (!avctx->internal->to_free) {
1391 ret = AVERROR(ENOMEM);
1395 if (codec->priv_data_size > 0) {
1396 if (!avctx->priv_data) {
1397 avctx->priv_data = av_mallocz(codec->priv_data_size);
1398 if (!avctx->priv_data) {
1399 ret = AVERROR(ENOMEM);
1402 if (codec->priv_class) {
1403 *(const AVClass **)avctx->priv_data = codec->priv_class;
1404 av_opt_set_defaults(avctx->priv_data);
1407 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1410 avctx->priv_data = NULL;
1412 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1415 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1416 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist\n", codec->name);
1417 ret = AVERROR(EINVAL);
1421 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1422 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1423 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1424 if (avctx->coded_width && avctx->coded_height)
1425 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1426 else if (avctx->width && avctx->height)
1427 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1432 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1433 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1434 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1435 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1436 ff_set_dimensions(avctx, 0, 0);
1439 if (avctx->width > 0 && avctx->height > 0) {
1440 if (av_image_check_sar(avctx->width, avctx->height,
1441 avctx->sample_aspect_ratio) < 0) {
1442 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1443 avctx->sample_aspect_ratio.num,
1444 avctx->sample_aspect_ratio.den);
1445 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1449 /* if the decoder init function was already called previously,
1450 * free the already allocated subtitle_header before overwriting it */
1451 if (av_codec_is_decoder(codec))
1452 av_freep(&avctx->subtitle_header);
1454 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1455 ret = AVERROR(EINVAL);
1459 avctx->codec = codec;
1460 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1461 avctx->codec_id == AV_CODEC_ID_NONE) {
1462 avctx->codec_type = codec->type;
1463 avctx->codec_id = codec->id;
1465 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1466 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1467 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1468 ret = AVERROR(EINVAL);
1471 avctx->frame_number = 0;
1472 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1474 if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1475 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1476 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1478 av_log(avctx, AV_LOG_ERROR,
1479 "The %s '%s' is experimental but experimental codecs are not enabled, "
1480 "add '-strict %d' if you want to use it.\n",
1481 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1482 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1483 if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
1484 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1485 codec_string, codec2->name);
1486 ret = AVERROR_EXPERIMENTAL;
1490 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1491 (!avctx->time_base.num || !avctx->time_base.den)) {
1492 avctx->time_base.num = 1;
1493 avctx->time_base.den = avctx->sample_rate;
1497 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1499 if (CONFIG_FRAME_THREAD_ENCODER) {
1500 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1501 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1502 ff_lock_avcodec(avctx, codec);
1508 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1509 ret = ff_thread_init(avctx);
1514 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
1515 avctx->thread_count = 1;
1517 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1518 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1519 avctx->codec->max_lowres);
1520 ret = AVERROR(EINVAL);
1525 if (avctx->debug_mv)
1526 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1527 "see the codecview filter instead.\n");
1530 if (av_codec_is_encoder(avctx->codec)) {
1532 if (avctx->codec->sample_fmts) {
1533 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1534 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1536 if (avctx->channels == 1 &&
1537 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1538 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1539 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1543 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1545 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1546 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1547 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1548 ret = AVERROR(EINVAL);
1552 if (avctx->codec->pix_fmts) {
1553 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1554 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1556 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1557 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1558 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1560 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1561 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1562 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1563 ret = AVERROR(EINVAL);
1566 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1567 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1568 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1569 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1570 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1571 avctx->color_range = AVCOL_RANGE_JPEG;
1573 if (avctx->codec->supported_samplerates) {
1574 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1575 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1577 if (avctx->codec->supported_samplerates[i] == 0) {
1578 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1579 avctx->sample_rate);
1580 ret = AVERROR(EINVAL);
1584 if (avctx->sample_rate < 0) {
1585 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1586 avctx->sample_rate);
1587 ret = AVERROR(EINVAL);
1590 if (avctx->codec->channel_layouts) {
1591 if (!avctx->channel_layout) {
1592 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1594 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1595 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1597 if (avctx->codec->channel_layouts[i] == 0) {
1599 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1600 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1601 ret = AVERROR(EINVAL);
1606 if (avctx->channel_layout && avctx->channels) {
1607 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1608 if (channels != avctx->channels) {
1610 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1611 av_log(avctx, AV_LOG_ERROR,
1612 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1613 buf, channels, avctx->channels);
1614 ret = AVERROR(EINVAL);
1617 } else if (avctx->channel_layout) {
1618 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1620 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1621 if (avctx->width <= 0 || avctx->height <= 0) {
1622 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1623 ret = AVERROR(EINVAL);
1627 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1628 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1629 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1632 if (!avctx->rc_initial_buffer_occupancy)
1633 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1636 avctx->pts_correction_num_faulty_pts =
1637 avctx->pts_correction_num_faulty_dts = 0;
1638 avctx->pts_correction_last_pts =
1639 avctx->pts_correction_last_dts = INT64_MIN;
1641 if ( !CONFIG_GRAY && avctx->flags & CODEC_FLAG_GRAY
1642 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1643 av_log(avctx, AV_LOG_WARNING,
1644 "gray decoding requested but not enabled at configuration time\n");
1646 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1647 || avctx->internal->frame_thread_encoder)) {
1648 ret = avctx->codec->init(avctx);
1656 #if FF_API_AUDIOENC_DELAY
1657 if (av_codec_is_encoder(avctx->codec))
1658 avctx->delay = avctx->initial_padding;
1661 if (av_codec_is_decoder(avctx->codec)) {
1662 if (!avctx->bit_rate)
1663 avctx->bit_rate = get_bit_rate(avctx);
1664 /* validate channel layout from the decoder */
1665 if (avctx->channel_layout) {
1666 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1667 if (!avctx->channels)
1668 avctx->channels = channels;
1669 else if (channels != avctx->channels) {
1671 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1672 av_log(avctx, AV_LOG_WARNING,
1673 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1674 "ignoring specified channel layout\n",
1675 buf, channels, avctx->channels);
1676 avctx->channel_layout = 0;
1679 if (avctx->channels && avctx->channels < 0 ||
1680 avctx->channels > FF_SANE_NB_CHANNELS) {
1681 ret = AVERROR(EINVAL);
1684 if (avctx->sub_charenc) {
1685 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1686 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1687 "supported with subtitles codecs\n");
1688 ret = AVERROR(EINVAL);
1690 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1691 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1692 "subtitles character encoding will be ignored\n",
1693 avctx->codec_descriptor->name);
1694 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1696 /* input character encoding is set for a text based subtitle
1697 * codec at this point */
1698 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1699 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1701 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1703 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1704 if (cd == (iconv_t)-1) {
1705 ret = AVERROR(errno);
1706 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1707 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1712 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1713 "conversion needs a libavcodec built with iconv support "
1714 "for this codec\n");
1715 ret = AVERROR(ENOSYS);
1722 #if FF_API_AVCTX_TIMEBASE
1723 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1724 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1727 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1728 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1732 ff_unlock_avcodec();
1734 av_dict_free(options);
1741 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1742 avctx->codec->close(avctx);
1744 if (codec->priv_class && codec->priv_data_size)
1745 av_opt_free(avctx->priv_data);
1749 av_freep(&avctx->priv_data);
1750 if (avctx->internal) {
1751 av_frame_free(&avctx->internal->to_free);
1752 av_freep(&avctx->internal->pool);
1754 av_freep(&avctx->internal);
1755 avctx->codec = NULL;
1759 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
1761 if (avpkt->size < 0) {
1762 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1763 return AVERROR(EINVAL);
1765 if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1766 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1767 size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
1768 return AVERROR(EINVAL);
1772 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1773 if (!avpkt->data || avpkt->size < size) {
1774 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1775 avpkt->data = avctx->internal->byte_buffer;
1776 avpkt->size = avctx->internal->byte_buffer_size;
1777 #if FF_API_DESTRUCT_PACKET
1778 FF_DISABLE_DEPRECATION_WARNINGS
1779 avpkt->destruct = NULL;
1780 FF_ENABLE_DEPRECATION_WARNINGS
1786 AVBufferRef *buf = avpkt->buf;
1787 #if FF_API_DESTRUCT_PACKET
1788 FF_DISABLE_DEPRECATION_WARNINGS
1789 void *destruct = avpkt->destruct;
1790 FF_ENABLE_DEPRECATION_WARNINGS
1793 if (avpkt->size < size) {
1794 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1795 return AVERROR(EINVAL);
1798 av_init_packet(avpkt);
1799 #if FF_API_DESTRUCT_PACKET
1800 FF_DISABLE_DEPRECATION_WARNINGS
1801 avpkt->destruct = destruct;
1802 FF_ENABLE_DEPRECATION_WARNINGS
1808 int ret = av_new_packet(avpkt, size);
1810 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1815 int ff_alloc_packet(AVPacket *avpkt, int size)
1817 return ff_alloc_packet2(NULL, avpkt, size);
1821 * Pad last frame with silence.
1823 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1825 AVFrame *frame = NULL;
1828 if (!(frame = av_frame_alloc()))
1829 return AVERROR(ENOMEM);
1831 frame->format = src->format;
1832 frame->channel_layout = src->channel_layout;
1833 av_frame_set_channels(frame, av_frame_get_channels(src));
1834 frame->nb_samples = s->frame_size;
1835 ret = av_frame_get_buffer(frame, 32);
1839 ret = av_frame_copy_props(frame, src);
1843 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1844 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1846 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1847 frame->nb_samples - src->nb_samples,
1848 s->channels, s->sample_fmt)) < 0)
1856 av_frame_free(&frame);
1860 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1862 const AVFrame *frame,
1863 int *got_packet_ptr)
1865 AVFrame *extended_frame = NULL;
1866 AVFrame *padded_frame = NULL;
1868 AVPacket user_pkt = *avpkt;
1869 int needs_realloc = !user_pkt.data;
1871 *got_packet_ptr = 0;
1873 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1874 av_free_packet(avpkt);
1875 av_init_packet(avpkt);
1879 /* ensure that extended_data is properly set */
1880 if (frame && !frame->extended_data) {
1881 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1882 avctx->channels > AV_NUM_DATA_POINTERS) {
1883 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1884 "with more than %d channels, but extended_data is not set.\n",
1885 AV_NUM_DATA_POINTERS);
1886 return AVERROR(EINVAL);
1888 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1890 extended_frame = av_frame_alloc();
1891 if (!extended_frame)
1892 return AVERROR(ENOMEM);
1894 memcpy(extended_frame, frame, sizeof(AVFrame));
1895 extended_frame->extended_data = extended_frame->data;
1896 frame = extended_frame;
1899 /* extract audio service type metadata */
1901 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1902 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1903 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1906 /* check for valid frame size */
1908 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1909 if (frame->nb_samples > avctx->frame_size) {
1910 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1911 ret = AVERROR(EINVAL);
1914 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1915 if (frame->nb_samples < avctx->frame_size &&
1916 !avctx->internal->last_audio_frame) {
1917 ret = pad_last_frame(avctx, &padded_frame, frame);
1921 frame = padded_frame;
1922 avctx->internal->last_audio_frame = 1;
1925 if (frame->nb_samples != avctx->frame_size) {
1926 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1927 ret = AVERROR(EINVAL);
1933 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1935 if (*got_packet_ptr) {
1936 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1937 if (avpkt->pts == AV_NOPTS_VALUE)
1938 avpkt->pts = frame->pts;
1939 if (!avpkt->duration)
1940 avpkt->duration = ff_samples_to_time_base(avctx,
1943 avpkt->dts = avpkt->pts;
1948 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1950 if (user_pkt.data) {
1951 if (user_pkt.size >= avpkt->size) {
1952 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1954 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1955 avpkt->size = user_pkt.size;
1958 avpkt->buf = user_pkt.buf;
1959 avpkt->data = user_pkt.data;
1960 #if FF_API_DESTRUCT_PACKET
1961 FF_DISABLE_DEPRECATION_WARNINGS
1962 avpkt->destruct = user_pkt.destruct;
1963 FF_ENABLE_DEPRECATION_WARNINGS
1966 if (av_dup_packet(avpkt) < 0) {
1967 ret = AVERROR(ENOMEM);
1973 if (needs_realloc && avpkt->data) {
1974 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1976 avpkt->data = avpkt->buf->data;
1979 avctx->frame_number++;
1982 if (ret < 0 || !*got_packet_ptr) {
1983 av_free_packet(avpkt);
1984 av_init_packet(avpkt);
1988 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1989 * this needs to be moved to the encoders, but for now we can do it
1990 * here to simplify things */
1991 avpkt->flags |= AV_PKT_FLAG_KEY;
1994 av_frame_free(&padded_frame);
1995 av_free(extended_frame);
1997 #if FF_API_AUDIOENC_DELAY
1998 avctx->delay = avctx->initial_padding;
2004 #if FF_API_OLD_ENCODE_AUDIO
2005 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
2006 uint8_t *buf, int buf_size,
2007 const short *samples)
2011 int ret, samples_size, got_packet;
2013 av_init_packet(&pkt);
2015 pkt.size = buf_size;
2018 frame = av_frame_alloc();
2020 return AVERROR(ENOMEM);
2022 if (avctx->frame_size) {
2023 frame->nb_samples = avctx->frame_size;
2025 /* if frame_size is not set, the number of samples must be
2026 * calculated from the buffer size */
2028 if (!av_get_bits_per_sample(avctx->codec_id)) {
2029 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
2030 "support this codec\n");
2031 av_frame_free(&frame);
2032 return AVERROR(EINVAL);
2034 nb_samples = (int64_t)buf_size * 8 /
2035 (av_get_bits_per_sample(avctx->codec_id) *
2037 if (nb_samples >= INT_MAX) {
2038 av_frame_free(&frame);
2039 return AVERROR(EINVAL);
2041 frame->nb_samples = nb_samples;
2044 /* it is assumed that the samples buffer is large enough based on the
2045 * relevant parameters */
2046 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
2048 avctx->sample_fmt, 1);
2049 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
2051 (const uint8_t *)samples,
2052 samples_size, 1)) < 0) {
2053 av_frame_free(&frame);
2057 /* fabricate frame pts from sample count.
2058 * this is needed because the avcodec_encode_audio() API does not have
2059 * a way for the user to provide pts */
2060 if (avctx->sample_rate && avctx->time_base.num)
2061 frame->pts = ff_samples_to_time_base(avctx,
2062 avctx->internal->sample_count);
2064 frame->pts = AV_NOPTS_VALUE;
2065 avctx->internal->sample_count += frame->nb_samples;
2071 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
2072 if (!ret && got_packet && avctx->coded_frame) {
2073 avctx->coded_frame->pts = pkt.pts;
2074 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2076 /* free any side data since we cannot return it */
2077 av_packet_free_side_data(&pkt);
2079 if (frame && frame->extended_data != frame->data)
2080 av_freep(&frame->extended_data);
2082 av_frame_free(&frame);
2083 return ret ? ret : pkt.size;
2088 #if FF_API_OLD_ENCODE_VIDEO
2089 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2090 const AVFrame *pict)
2093 int ret, got_packet = 0;
2095 if (buf_size < FF_MIN_BUFFER_SIZE) {
2096 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
2100 av_init_packet(&pkt);
2102 pkt.size = buf_size;
2104 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
2105 if (!ret && got_packet && avctx->coded_frame) {
2106 avctx->coded_frame->pts = pkt.pts;
2107 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2110 /* free any side data since we cannot return it */
2111 if (pkt.side_data_elems > 0) {
2113 for (i = 0; i < pkt.side_data_elems; i++)
2114 av_free(pkt.side_data[i].data);
2115 av_freep(&pkt.side_data);
2116 pkt.side_data_elems = 0;
2119 return ret ? ret : pkt.size;
2124 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
2126 const AVFrame *frame,
2127 int *got_packet_ptr)
2130 AVPacket user_pkt = *avpkt;
2131 int needs_realloc = !user_pkt.data;
2133 *got_packet_ptr = 0;
2135 if(CONFIG_FRAME_THREAD_ENCODER &&
2136 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
2137 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
2139 if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
2140 avctx->stats_out[0] = '\0';
2142 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
2143 av_free_packet(avpkt);
2144 av_init_packet(avpkt);
2149 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
2150 return AVERROR(EINVAL);
2152 if (frame && frame->format == AV_PIX_FMT_NONE)
2153 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
2154 if (frame && (frame->width == 0 || frame->height == 0))
2155 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
2157 av_assert0(avctx->codec->encode2);
2159 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2160 av_assert0(ret <= 0);
2162 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2164 if (user_pkt.data) {
2165 if (user_pkt.size >= avpkt->size) {
2166 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2168 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2169 avpkt->size = user_pkt.size;
2172 avpkt->buf = user_pkt.buf;
2173 avpkt->data = user_pkt.data;
2174 #if FF_API_DESTRUCT_PACKET
2175 FF_DISABLE_DEPRECATION_WARNINGS
2176 avpkt->destruct = user_pkt.destruct;
2177 FF_ENABLE_DEPRECATION_WARNINGS
2180 if (av_dup_packet(avpkt) < 0) {
2181 ret = AVERROR(ENOMEM);
2187 if (!*got_packet_ptr)
2189 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
2190 avpkt->pts = avpkt->dts = frame->pts;
2192 if (needs_realloc && avpkt->data) {
2193 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
2195 avpkt->data = avpkt->buf->data;
2198 avctx->frame_number++;
2201 if (ret < 0 || !*got_packet_ptr)
2202 av_free_packet(avpkt);
2204 av_packet_merge_side_data(avpkt);
2210 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2211 const AVSubtitle *sub)
2214 if (sub->start_display_time) {
2215 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2219 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2220 avctx->frame_number++;
2225 * Attempt to guess proper monotonic timestamps for decoded video frames
2226 * which might have incorrect times. Input timestamps may wrap around, in
2227 * which case the output will as well.
2229 * @param pts the pts field of the decoded AVPacket, as passed through
2231 * @param dts the dts field of the decoded AVPacket
2232 * @return one of the input values, may be AV_NOPTS_VALUE
2234 static int64_t guess_correct_pts(AVCodecContext *ctx,
2235 int64_t reordered_pts, int64_t dts)
2237 int64_t pts = AV_NOPTS_VALUE;
2239 if (dts != AV_NOPTS_VALUE) {
2240 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2241 ctx->pts_correction_last_dts = dts;
2242 } else if (reordered_pts != AV_NOPTS_VALUE)
2243 ctx->pts_correction_last_dts = reordered_pts;
2245 if (reordered_pts != AV_NOPTS_VALUE) {
2246 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2247 ctx->pts_correction_last_pts = reordered_pts;
2248 } else if(dts != AV_NOPTS_VALUE)
2249 ctx->pts_correction_last_pts = dts;
2251 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2252 && reordered_pts != AV_NOPTS_VALUE)
2253 pts = reordered_pts;
2260 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2263 const uint8_t *data;
2267 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2271 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) {
2272 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2273 "changes, but PARAM_CHANGE side data was sent to it.\n");
2274 return AVERROR(EINVAL);
2280 flags = bytestream_get_le32(&data);
2283 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2286 val = bytestream_get_le32(&data);
2287 if (val <= 0 || val > INT_MAX) {
2288 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2289 return AVERROR_INVALIDDATA;
2291 avctx->channels = val;
2294 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2297 avctx->channel_layout = bytestream_get_le64(&data);
2300 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2303 val = bytestream_get_le32(&data);
2304 if (val <= 0 || val > INT_MAX) {
2305 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2306 return AVERROR_INVALIDDATA;
2308 avctx->sample_rate = val;
2311 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2314 avctx->width = bytestream_get_le32(&data);
2315 avctx->height = bytestream_get_le32(&data);
2317 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2324 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2325 return AVERROR_INVALIDDATA;
2328 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2332 /* move the original frame to our backup */
2333 av_frame_unref(avci->to_free);
2334 av_frame_move_ref(avci->to_free, frame);
2336 /* now copy everything except the AVBufferRefs back
2337 * note that we make a COPY of the side data, so calling av_frame_free() on
2338 * the caller's frame will work properly */
2339 ret = av_frame_copy_props(frame, avci->to_free);
2343 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2344 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2345 if (avci->to_free->extended_data != avci->to_free->data) {
2346 int planes = av_frame_get_channels(avci->to_free);
2347 int size = planes * sizeof(*frame->extended_data);
2350 av_frame_unref(frame);
2354 frame->extended_data = av_malloc(size);
2355 if (!frame->extended_data) {
2356 av_frame_unref(frame);
2357 return AVERROR(ENOMEM);
2359 memcpy(frame->extended_data, avci->to_free->extended_data,
2362 frame->extended_data = frame->data;
2364 frame->format = avci->to_free->format;
2365 frame->width = avci->to_free->width;
2366 frame->height = avci->to_free->height;
2367 frame->channel_layout = avci->to_free->channel_layout;
2368 frame->nb_samples = avci->to_free->nb_samples;
2369 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2374 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2375 int *got_picture_ptr,
2376 const AVPacket *avpkt)
2378 AVCodecInternal *avci = avctx->internal;
2380 // copy to ensure we do not change avpkt
2381 AVPacket tmp = *avpkt;
2384 return AVERROR(EINVAL);
2385 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2386 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2387 return AVERROR(EINVAL);
2390 *got_picture_ptr = 0;
2391 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2392 return AVERROR(EINVAL);
2394 av_frame_unref(picture);
2396 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2397 int did_split = av_packet_split_side_data(&tmp);
2398 ret = apply_param_change(avctx, &tmp);
2400 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2401 if (avctx->err_recognition & AV_EF_EXPLODE)
2405 avctx->internal->pkt = &tmp;
2406 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2407 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2410 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2412 picture->pkt_dts = avpkt->dts;
2414 if(!avctx->has_b_frames){
2415 av_frame_set_pkt_pos(picture, avpkt->pos);
2417 //FIXME these should be under if(!avctx->has_b_frames)
2418 /* get_buffer is supposed to set frame parameters */
2419 if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
2420 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2421 if (!picture->width) picture->width = avctx->width;
2422 if (!picture->height) picture->height = avctx->height;
2423 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2428 emms_c(); //needed to avoid an emms_c() call before every return;
2430 avctx->internal->pkt = NULL;
2432 av_packet_free_side_data(&tmp);
2437 if (*got_picture_ptr) {
2438 if (!avctx->refcounted_frames) {
2439 int err = unrefcount_frame(avci, picture);
2444 avctx->frame_number++;
2445 av_frame_set_best_effort_timestamp(picture,
2446 guess_correct_pts(avctx,
2450 av_frame_unref(picture);
2454 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2455 * make sure it's set correctly */
2456 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2458 #if FF_API_AVCTX_TIMEBASE
2459 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2460 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2466 #if FF_API_OLD_DECODE_AUDIO
2467 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2468 int *frame_size_ptr,
2471 AVFrame *frame = av_frame_alloc();
2472 int ret, got_frame = 0;
2475 return AVERROR(ENOMEM);
2476 if (avctx->get_buffer != avcodec_default_get_buffer) {
2477 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2478 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2479 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2480 "avcodec_decode_audio4()\n");
2481 avctx->get_buffer = avcodec_default_get_buffer;
2482 avctx->release_buffer = avcodec_default_release_buffer;
2485 ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt);
2487 if (ret >= 0 && got_frame) {
2489 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2490 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2492 avctx->sample_fmt, 1);
2493 if (*frame_size_ptr < data_size) {
2494 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2495 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2496 av_frame_free(&frame);
2497 return AVERROR(EINVAL);
2500 memcpy(samples, frame->extended_data[0], plane_size);
2502 if (planar && avctx->channels > 1) {
2503 uint8_t *out = ((uint8_t *)samples) + plane_size;
2504 for (ch = 1; ch < avctx->channels; ch++) {
2505 memcpy(out, frame->extended_data[ch], plane_size);
2509 *frame_size_ptr = data_size;
2511 *frame_size_ptr = 0;
2513 av_frame_free(&frame);
2519 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2522 const AVPacket *avpkt)
2524 AVCodecInternal *avci = avctx->internal;
2529 if (!avpkt->data && avpkt->size) {
2530 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2531 return AVERROR(EINVAL);
2534 return AVERROR(EINVAL);
2535 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2536 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2537 return AVERROR(EINVAL);
2540 av_frame_unref(frame);
2542 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2545 uint32_t discard_padding = 0;
2546 uint8_t skip_reason = 0;
2547 uint8_t discard_reason = 0;
2548 // copy to ensure we do not change avpkt
2549 AVPacket tmp = *avpkt;
2550 int did_split = av_packet_split_side_data(&tmp);
2551 ret = apply_param_change(avctx, &tmp);
2553 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2554 if (avctx->err_recognition & AV_EF_EXPLODE)
2558 avctx->internal->pkt = &tmp;
2559 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2560 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2562 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2563 av_assert0(ret <= tmp.size);
2564 frame->pkt_dts = avpkt->dts;
2566 if (ret >= 0 && *got_frame_ptr) {
2567 avctx->frame_number++;
2568 av_frame_set_best_effort_timestamp(frame,
2569 guess_correct_pts(avctx,
2572 if (frame->format == AV_SAMPLE_FMT_NONE)
2573 frame->format = avctx->sample_fmt;
2574 if (!frame->channel_layout)
2575 frame->channel_layout = avctx->channel_layout;
2576 if (!av_frame_get_channels(frame))
2577 av_frame_set_channels(frame, avctx->channels);
2578 if (!frame->sample_rate)
2579 frame->sample_rate = avctx->sample_rate;
2582 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2583 if(side && side_size>=10) {
2584 avctx->internal->skip_samples = AV_RL32(side);
2585 discard_padding = AV_RL32(side + 4);
2586 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2587 avctx->internal->skip_samples, (int)discard_padding);
2588 skip_reason = AV_RL8(side + 8);
2589 discard_reason = AV_RL8(side + 9);
2591 if (avctx->internal->skip_samples && *got_frame_ptr &&
2592 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2593 if(frame->nb_samples <= avctx->internal->skip_samples){
2595 avctx->internal->skip_samples -= frame->nb_samples;
2596 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2597 avctx->internal->skip_samples);
2599 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2600 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2601 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2602 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2603 (AVRational){1, avctx->sample_rate},
2604 avctx->pkt_timebase);
2605 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2606 frame->pkt_pts += diff_ts;
2607 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2608 frame->pkt_dts += diff_ts;
2609 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2610 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2612 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2614 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2615 avctx->internal->skip_samples, frame->nb_samples);
2616 frame->nb_samples -= avctx->internal->skip_samples;
2617 avctx->internal->skip_samples = 0;
2621 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2622 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2623 if (discard_padding == frame->nb_samples) {
2626 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2627 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2628 (AVRational){1, avctx->sample_rate},
2629 avctx->pkt_timebase);
2630 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2631 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2633 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2635 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2636 (int)discard_padding, frame->nb_samples);
2637 frame->nb_samples -= discard_padding;
2641 if ((avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2642 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2644 AV_WL32(fside->data, avctx->internal->skip_samples);
2645 AV_WL32(fside->data + 4, discard_padding);
2646 AV_WL8(fside->data + 8, skip_reason);
2647 AV_WL8(fside->data + 9, discard_reason);
2648 avctx->internal->skip_samples = 0;
2652 avctx->internal->pkt = NULL;
2654 av_packet_free_side_data(&tmp);
2659 if (ret >= 0 && *got_frame_ptr) {
2660 if (!avctx->refcounted_frames) {
2661 int err = unrefcount_frame(avci, frame);
2666 av_frame_unref(frame);
2672 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2673 static int recode_subtitle(AVCodecContext *avctx,
2674 AVPacket *outpkt, const AVPacket *inpkt)
2677 iconv_t cd = (iconv_t)-1;
2684 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2688 cd = iconv_open("UTF-8", avctx->sub_charenc);
2689 av_assert0(cd != (iconv_t)-1);
2694 if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) {
2695 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2696 ret = AVERROR(ENOMEM);
2700 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2703 outpkt->buf = tmp.buf;
2704 outpkt->data = tmp.data;
2705 outpkt->size = tmp.size;
2706 outb = outpkt->data;
2707 outl = outpkt->size;
2709 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2710 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2711 outl >= outpkt->size || inl != 0) {
2712 ret = FFMIN(AVERROR(errno), -1);
2713 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2714 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2715 av_free_packet(&tmp);
2718 outpkt->size -= outl;
2719 memset(outpkt->data + outpkt->size, 0, outl);
2722 if (cd != (iconv_t)-1)
2726 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2727 return AVERROR(EINVAL);
2731 static int utf8_check(const uint8_t *str)
2733 const uint8_t *byte;
2734 uint32_t codepoint, min;
2738 GET_UTF8(codepoint, *(byte++), return 0;);
2739 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2740 1 << (5 * (byte - str) - 4);
2741 if (codepoint < min || codepoint >= 0x110000 ||
2742 codepoint == 0xFFFE /* BOM */ ||
2743 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2750 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2756 if (!avpkt->data && avpkt->size) {
2757 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2758 return AVERROR(EINVAL);
2761 return AVERROR(EINVAL);
2762 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2763 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2764 return AVERROR(EINVAL);
2768 get_subtitle_defaults(sub);
2770 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
2771 AVPacket pkt_recoded;
2772 AVPacket tmp = *avpkt;
2773 int did_split = av_packet_split_side_data(&tmp);
2774 //apply_param_change(avctx, &tmp);
2777 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2779 * If the side data is smaller than the buffer padding size, the
2780 * remaining bytes should have already been filled with zeros by the
2781 * original packet allocation anyway. */
2782 memset(tmp.data + tmp.size, 0,
2783 FFMIN(avpkt->size - tmp.size, FF_INPUT_BUFFER_PADDING_SIZE));
2787 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2791 avctx->internal->pkt = &pkt_recoded;
2793 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2794 sub->pts = av_rescale_q(avpkt->pts,
2795 avctx->pkt_timebase, AV_TIME_BASE_Q);
2796 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2797 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2798 !!*got_sub_ptr >= !!sub->num_rects);
2800 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2801 avctx->pkt_timebase.num) {
2802 AVRational ms = { 1, 1000 };
2803 sub->end_display_time = av_rescale_q(avpkt->duration,
2804 avctx->pkt_timebase, ms);
2807 for (i = 0; i < sub->num_rects; i++) {
2808 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2809 av_log(avctx, AV_LOG_ERROR,
2810 "Invalid UTF-8 in decoded subtitles text; "
2811 "maybe missing -sub_charenc option\n");
2812 avsubtitle_free(sub);
2813 return AVERROR_INVALIDDATA;
2817 if (tmp.data != pkt_recoded.data) { // did we recode?
2818 /* prevent from destroying side data from original packet */
2819 pkt_recoded.side_data = NULL;
2820 pkt_recoded.side_data_elems = 0;
2822 av_free_packet(&pkt_recoded);
2824 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2826 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2828 avctx->internal->pkt = NULL;
2832 av_packet_free_side_data(&tmp);
2838 avctx->frame_number++;
2844 void avsubtitle_free(AVSubtitle *sub)
2848 for (i = 0; i < sub->num_rects; i++) {
2849 av_freep(&sub->rects[i]->pict.data[0]);
2850 av_freep(&sub->rects[i]->pict.data[1]);
2851 av_freep(&sub->rects[i]->pict.data[2]);
2852 av_freep(&sub->rects[i]->pict.data[3]);
2853 av_freep(&sub->rects[i]->text);
2854 av_freep(&sub->rects[i]->ass);
2855 av_freep(&sub->rects[i]);
2858 av_freep(&sub->rects);
2860 memset(sub, 0, sizeof(AVSubtitle));
2863 av_cold int avcodec_close(AVCodecContext *avctx)
2868 if (avcodec_is_open(avctx)) {
2869 FramePool *pool = avctx->internal->pool;
2871 if (CONFIG_FRAME_THREAD_ENCODER &&
2872 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2873 ff_frame_thread_encoder_free(avctx);
2875 if (HAVE_THREADS && avctx->internal->thread_ctx)
2876 ff_thread_free(avctx);
2877 if (avctx->codec && avctx->codec->close)
2878 avctx->codec->close(avctx);
2879 avctx->coded_frame = NULL;
2880 avctx->internal->byte_buffer_size = 0;
2881 av_freep(&avctx->internal->byte_buffer);
2882 av_frame_free(&avctx->internal->to_free);
2883 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2884 av_buffer_pool_uninit(&pool->pools[i]);
2885 av_freep(&avctx->internal->pool);
2887 if (avctx->hwaccel && avctx->hwaccel->uninit)
2888 avctx->hwaccel->uninit(avctx);
2889 av_freep(&avctx->internal->hwaccel_priv_data);
2891 av_freep(&avctx->internal);
2894 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2895 av_opt_free(avctx->priv_data);
2897 av_freep(&avctx->priv_data);
2898 if (av_codec_is_encoder(avctx->codec))
2899 av_freep(&avctx->extradata);
2900 avctx->codec = NULL;
2901 avctx->active_thread_type = 0;
2906 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2909 //This is for future deprecatec codec ids, its empty since
2910 //last major bump but will fill up again over time, please don't remove it
2911 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2912 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2913 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2914 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2915 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2916 case AV_CODEC_ID_PCM_S16BE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S16BE_PLANAR;
2917 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2918 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2919 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2920 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2921 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2922 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2923 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2924 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2925 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2926 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2927 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2928 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2929 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2930 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2931 default : return id;
2935 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2937 AVCodec *p, *experimental = NULL;
2939 id= remap_deprecated_codec_id(id);
2941 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2943 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
2950 return experimental;
2953 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2955 return find_encdec(id, 1);
2958 AVCodec *avcodec_find_encoder_by_name(const char *name)
2965 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2972 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2974 return find_encdec(id, 0);
2977 AVCodec *avcodec_find_decoder_by_name(const char *name)
2984 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2991 const char *avcodec_get_name(enum AVCodecID id)
2993 const AVCodecDescriptor *cd;
2996 if (id == AV_CODEC_ID_NONE)
2998 cd = avcodec_descriptor_get(id);
3001 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
3002 codec = avcodec_find_decoder(id);
3005 codec = avcodec_find_encoder(id);
3008 return "unknown_codec";
3011 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3013 int i, len, ret = 0;
3015 #define TAG_PRINT(x) \
3016 (((x) >= '0' && (x) <= '9') || \
3017 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3018 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3020 for (i = 0; i < 4; i++) {
3021 len = snprintf(buf, buf_size,
3022 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3024 buf_size = buf_size > len ? buf_size - len : 0;
3031 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3033 const char *codec_type;
3034 const char *codec_name;
3035 const char *profile = NULL;
3039 AVRational display_aspect_ratio;
3040 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3042 if (!buf || buf_size <= 0)
3044 codec_type = av_get_media_type_string(enc->codec_type);
3045 codec_name = avcodec_get_name(enc->codec_id);
3046 if (enc->profile != FF_PROFILE_UNKNOWN) {
3050 p = encode ? avcodec_find_encoder(enc->codec_id) :
3051 avcodec_find_decoder(enc->codec_id);
3053 profile = av_get_profile_name(p, enc->profile);
3056 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3058 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3060 if (enc->codec && strcmp(enc->codec->name, codec_name))
3061 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3064 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3065 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3066 && av_log_get_level() >= AV_LOG_VERBOSE
3068 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3069 ", %d reference frame%s",
3070 enc->refs, enc->refs > 1 ? "s" : "");
3072 if (enc->codec_tag) {
3074 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3075 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3076 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3079 switch (enc->codec_type) {
3080 case AVMEDIA_TYPE_VIDEO:
3082 char detail[256] = "(";
3084 av_strlcat(buf, separator, buf_size);
3086 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3087 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3088 av_get_pix_fmt_name(enc->pix_fmt));
3089 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3090 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
3091 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3092 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
3093 av_strlcatf(detail, sizeof(detail), "%s, ",
3094 av_color_range_name(enc->color_range));
3096 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3097 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
3098 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3099 if (enc->colorspace != (int)enc->color_primaries ||
3100 enc->colorspace != (int)enc->color_trc) {
3102 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3103 av_color_space_name(enc->colorspace),
3104 av_color_primaries_name(enc->color_primaries),
3105 av_color_transfer_name(enc->color_trc));
3107 av_strlcatf(detail, sizeof(detail), "%s, ",
3108 av_get_colorspace_name(enc->colorspace));
3111 if (av_log_get_level() >= AV_LOG_DEBUG &&
3112 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
3113 av_strlcatf(detail, sizeof(detail), "%s, ",
3114 av_chroma_location_name(enc->chroma_sample_location));
3116 if (strlen(detail) > 1) {
3117 detail[strlen(detail) - 2] = 0;
3118 av_strlcatf(buf, buf_size, "%s)", detail);
3123 av_strlcat(buf, new_line ? separator : ", ", buf_size);
3125 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3127 enc->width, enc->height);
3129 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3130 (enc->width != enc->coded_width ||
3131 enc->height != enc->coded_height))
3132 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3133 " (%dx%d)", enc->coded_width, enc->coded_height);
3135 if (enc->sample_aspect_ratio.num) {
3136 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3137 enc->width * enc->sample_aspect_ratio.num,
3138 enc->height * enc->sample_aspect_ratio.den,
3140 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3141 " [SAR %d:%d DAR %d:%d]",
3142 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
3143 display_aspect_ratio.num, display_aspect_ratio.den);
3145 if (av_log_get_level() >= AV_LOG_DEBUG) {
3146 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3147 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3149 enc->time_base.num / g, enc->time_base.den / g);
3153 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3154 ", q=%d-%d", enc->qmin, enc->qmax);
3156 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
3157 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3158 ", Closed Captions");
3159 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
3160 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3164 case AVMEDIA_TYPE_AUDIO:
3165 av_strlcat(buf, separator, buf_size);
3167 if (enc->sample_rate) {
3168 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3169 "%d Hz, ", enc->sample_rate);
3171 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3172 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3173 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3174 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3176 if ( enc->bits_per_raw_sample > 0
3177 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
3178 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3179 " (%d bit)", enc->bits_per_raw_sample);
3181 case AVMEDIA_TYPE_DATA:
3182 if (av_log_get_level() >= AV_LOG_DEBUG) {
3183 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3185 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3187 enc->time_base.num / g, enc->time_base.den / g);
3190 case AVMEDIA_TYPE_SUBTITLE:
3192 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3193 ", %dx%d", enc->width, enc->height);
3199 if (enc->flags & CODEC_FLAG_PASS1)
3200 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3202 if (enc->flags & CODEC_FLAG_PASS2)
3203 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3206 bitrate = get_bit_rate(enc);
3208 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3209 ", %d kb/s", bitrate / 1000);
3210 } else if (enc->rc_max_rate > 0) {
3211 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3212 ", max. %d kb/s", enc->rc_max_rate / 1000);
3216 const char *av_get_profile_name(const AVCodec *codec, int profile)
3219 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3222 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3223 if (p->profile == profile)
3229 unsigned avcodec_version(void)
3231 // av_assert0(AV_CODEC_ID_V410==164);
3232 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3233 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3234 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3235 av_assert0(AV_CODEC_ID_SRT==94216);
3236 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3238 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
3239 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
3240 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
3241 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
3242 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
3243 return LIBAVCODEC_VERSION_INT;
3246 const char *avcodec_configuration(void)
3248 return FFMPEG_CONFIGURATION;
3251 const char *avcodec_license(void)
3253 #define LICENSE_PREFIX "libavcodec license: "
3254 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3257 void avcodec_flush_buffers(AVCodecContext *avctx)
3259 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3260 ff_thread_flush(avctx);
3261 else if (avctx->codec->flush)
3262 avctx->codec->flush(avctx);
3264 avctx->pts_correction_last_pts =
3265 avctx->pts_correction_last_dts = INT64_MIN;
3267 if (!avctx->refcounted_frames)
3268 av_frame_unref(avctx->internal->to_free);
3271 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3274 case AV_CODEC_ID_8SVX_EXP:
3275 case AV_CODEC_ID_8SVX_FIB:
3276 case AV_CODEC_ID_ADPCM_CT:
3277 case AV_CODEC_ID_ADPCM_IMA_APC:
3278 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3279 case AV_CODEC_ID_ADPCM_IMA_OKI:
3280 case AV_CODEC_ID_ADPCM_IMA_WS:
3281 case AV_CODEC_ID_ADPCM_G722:
3282 case AV_CODEC_ID_ADPCM_YAMAHA:
3284 case AV_CODEC_ID_DSD_LSBF:
3285 case AV_CODEC_ID_DSD_MSBF:
3286 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3287 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3288 case AV_CODEC_ID_PCM_ALAW:
3289 case AV_CODEC_ID_PCM_MULAW:
3290 case AV_CODEC_ID_PCM_S8:
3291 case AV_CODEC_ID_PCM_S8_PLANAR:
3292 case AV_CODEC_ID_PCM_U8:
3293 case AV_CODEC_ID_PCM_ZORK:
3295 case AV_CODEC_ID_PCM_S16BE:
3296 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3297 case AV_CODEC_ID_PCM_S16LE:
3298 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3299 case AV_CODEC_ID_PCM_U16BE:
3300 case AV_CODEC_ID_PCM_U16LE:
3302 case AV_CODEC_ID_PCM_S24DAUD:
3303 case AV_CODEC_ID_PCM_S24BE:
3304 case AV_CODEC_ID_PCM_S24LE:
3305 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3306 case AV_CODEC_ID_PCM_U24BE:
3307 case AV_CODEC_ID_PCM_U24LE:
3309 case AV_CODEC_ID_PCM_S32BE:
3310 case AV_CODEC_ID_PCM_S32LE:
3311 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3312 case AV_CODEC_ID_PCM_U32BE:
3313 case AV_CODEC_ID_PCM_U32LE:
3314 case AV_CODEC_ID_PCM_F32BE:
3315 case AV_CODEC_ID_PCM_F32LE:
3317 case AV_CODEC_ID_PCM_F64BE:
3318 case AV_CODEC_ID_PCM_F64LE:
3325 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3327 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3328 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3329 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3330 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3331 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3332 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3333 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3334 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3335 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3336 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3337 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3339 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3340 return AV_CODEC_ID_NONE;
3341 if (be < 0 || be > 1)
3343 return map[fmt][be];
3346 int av_get_bits_per_sample(enum AVCodecID codec_id)
3349 case AV_CODEC_ID_ADPCM_SBPRO_2:
3351 case AV_CODEC_ID_ADPCM_SBPRO_3:
3353 case AV_CODEC_ID_ADPCM_SBPRO_4:
3354 case AV_CODEC_ID_ADPCM_IMA_WAV:
3355 case AV_CODEC_ID_ADPCM_IMA_QT:
3356 case AV_CODEC_ID_ADPCM_SWF:
3357 case AV_CODEC_ID_ADPCM_MS:
3360 return av_get_exact_bits_per_sample(codec_id);
3364 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3366 int id, sr, ch, ba, tag, bps;
3368 id = avctx->codec_id;
3369 sr = avctx->sample_rate;
3370 ch = avctx->channels;
3371 ba = avctx->block_align;
3372 tag = avctx->codec_tag;
3373 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3375 /* codecs with an exact constant bits per sample */
3376 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3377 return (frame_bytes * 8LL) / (bps * ch);
3378 bps = avctx->bits_per_coded_sample;
3380 /* codecs with a fixed packet duration */
3382 case AV_CODEC_ID_ADPCM_ADX: return 32;
3383 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3384 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3385 case AV_CODEC_ID_AMR_NB:
3386 case AV_CODEC_ID_EVRC:
3387 case AV_CODEC_ID_GSM:
3388 case AV_CODEC_ID_QCELP:
3389 case AV_CODEC_ID_RA_288: return 160;
3390 case AV_CODEC_ID_AMR_WB:
3391 case AV_CODEC_ID_GSM_MS: return 320;
3392 case AV_CODEC_ID_MP1: return 384;
3393 case AV_CODEC_ID_ATRAC1: return 512;
3394 case AV_CODEC_ID_ATRAC3: return 1024;
3395 case AV_CODEC_ID_ATRAC3P: return 2048;
3396 case AV_CODEC_ID_MP2:
3397 case AV_CODEC_ID_MUSEPACK7: return 1152;
3398 case AV_CODEC_ID_AC3: return 1536;
3402 /* calc from sample rate */
3403 if (id == AV_CODEC_ID_TTA)
3404 return 256 * sr / 245;
3407 /* calc from sample rate and channels */
3408 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3409 return (480 << (sr / 22050)) / ch;
3414 /* calc from block_align */
3415 if (id == AV_CODEC_ID_SIPR) {
3417 case 20: return 160;
3418 case 19: return 144;
3419 case 29: return 288;
3420 case 37: return 480;
3422 } else if (id == AV_CODEC_ID_ILBC) {
3424 case 38: return 160;
3425 case 50: return 240;
3430 if (frame_bytes > 0) {
3431 /* calc from frame_bytes only */
3432 if (id == AV_CODEC_ID_TRUESPEECH)
3433 return 240 * (frame_bytes / 32);
3434 if (id == AV_CODEC_ID_NELLYMOSER)
3435 return 256 * (frame_bytes / 64);
3436 if (id == AV_CODEC_ID_RA_144)
3437 return 160 * (frame_bytes / 20);
3438 if (id == AV_CODEC_ID_G723_1)
3439 return 240 * (frame_bytes / 24);
3442 /* calc from frame_bytes and bits_per_coded_sample */
3443 if (id == AV_CODEC_ID_ADPCM_G726)
3444 return frame_bytes * 8 / bps;
3448 /* calc from frame_bytes and channels */
3450 case AV_CODEC_ID_ADPCM_AFC:
3451 return frame_bytes / (9 * ch) * 16;
3452 case AV_CODEC_ID_ADPCM_DTK:
3453 return frame_bytes / (16 * ch) * 28;
3454 case AV_CODEC_ID_ADPCM_4XM:
3455 case AV_CODEC_ID_ADPCM_IMA_ISS:
3456 return (frame_bytes - 4 * ch) * 2 / ch;
3457 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3458 return (frame_bytes - 4) * 2 / ch;
3459 case AV_CODEC_ID_ADPCM_IMA_AMV:
3460 return (frame_bytes - 8) * 2 / ch;
3461 case AV_CODEC_ID_ADPCM_THP:
3462 case AV_CODEC_ID_ADPCM_THP_LE:
3463 if (avctx->extradata)
3464 return frame_bytes * 14 / (8 * ch);
3466 case AV_CODEC_ID_ADPCM_XA:
3467 return (frame_bytes / 128) * 224 / ch;
3468 case AV_CODEC_ID_INTERPLAY_DPCM:
3469 return (frame_bytes - 6 - ch) / ch;
3470 case AV_CODEC_ID_ROQ_DPCM:
3471 return (frame_bytes - 8) / ch;
3472 case AV_CODEC_ID_XAN_DPCM:
3473 return (frame_bytes - 2 * ch) / ch;
3474 case AV_CODEC_ID_MACE3:
3475 return 3 * frame_bytes / ch;
3476 case AV_CODEC_ID_MACE6:
3477 return 6 * frame_bytes / ch;
3478 case AV_CODEC_ID_PCM_LXF:
3479 return 2 * (frame_bytes / (5 * ch));
3480 case AV_CODEC_ID_IAC:
3481 case AV_CODEC_ID_IMC:
3482 return 4 * frame_bytes / ch;
3486 /* calc from frame_bytes, channels, and codec_tag */
3487 if (id == AV_CODEC_ID_SOL_DPCM) {
3489 return frame_bytes / ch;
3491 return frame_bytes * 2 / ch;
3496 /* calc from frame_bytes, channels, and block_align */
3497 int blocks = frame_bytes / ba;
3498 switch (avctx->codec_id) {
3499 case AV_CODEC_ID_ADPCM_IMA_WAV:
3500 if (bps < 2 || bps > 5)
3502 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3503 case AV_CODEC_ID_ADPCM_IMA_DK3:
3504 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3505 case AV_CODEC_ID_ADPCM_IMA_DK4:
3506 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3507 case AV_CODEC_ID_ADPCM_IMA_RAD:
3508 return blocks * ((ba - 4 * ch) * 2 / ch);
3509 case AV_CODEC_ID_ADPCM_MS:
3510 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3515 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3516 switch (avctx->codec_id) {
3517 case AV_CODEC_ID_PCM_DVD:
3520 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3521 case AV_CODEC_ID_PCM_BLURAY:
3524 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3525 case AV_CODEC_ID_S302M:
3526 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3532 /* Fall back on using frame_size */
3533 if (avctx->frame_size > 1 && frame_bytes)
3534 return avctx->frame_size;
3536 //For WMA we currently have no other means to calculate duration thus we
3537 //do it here by assuming CBR, which is true for all known cases.
3538 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3539 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3540 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3547 int ff_thread_init(AVCodecContext *s)
3554 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3568 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3571 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3575 #if FF_API_MISSING_SAMPLE
3576 FF_DISABLE_DEPRECATION_WARNINGS
3577 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3579 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3580 "version to the newest one from Git. If the problem still "
3581 "occurs, it means that your file has a feature which has not "
3582 "been implemented.\n", feature);
3584 av_log_ask_for_sample(avc, NULL);
3587 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3589 va_list argument_list;
3591 va_start(argument_list, msg);
3594 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3595 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3596 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3597 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3599 va_end(argument_list);
3601 FF_ENABLE_DEPRECATION_WARNINGS
3602 #endif /* FF_API_MISSING_SAMPLE */
3604 static AVHWAccel *first_hwaccel = NULL;
3605 static AVHWAccel **last_hwaccel = &first_hwaccel;
3607 void av_register_hwaccel(AVHWAccel *hwaccel)
3609 AVHWAccel **p = last_hwaccel;
3610 hwaccel->next = NULL;
3611 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3613 last_hwaccel = &hwaccel->next;
3616 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3618 return hwaccel ? hwaccel->next : first_hwaccel;
3621 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3624 // There is no good way to rollback a failure to destroy the
3625 // mutex, so we ignore failures.
3626 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3627 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3630 avformat_mutex = NULL;
3634 void *new_codec_mutex = NULL;
3635 void *new_avformat_mutex = NULL;
3637 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3638 return err > 0 ? AVERROR_UNKNOWN : err;
3640 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3641 // Ignore failures to destroy the newly created mutex.
3642 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3643 return err > 0 ? AVERROR_UNKNOWN : err;
3646 codec_mutex = new_codec_mutex;
3647 avformat_mutex = new_avformat_mutex;
3653 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3656 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3660 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1 &&
3661 !(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE)) {
3662 av_log(log_ctx, AV_LOG_ERROR,
3663 "Insufficient thread locking. At least %d threads are "
3664 "calling avcodec_open2() at the same time right now.\n",
3665 entangled_thread_counter);
3667 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3668 ff_avcodec_locked = 1;
3669 ff_unlock_avcodec();
3670 return AVERROR(EINVAL);
3672 av_assert0(!ff_avcodec_locked);
3673 ff_avcodec_locked = 1;
3677 int ff_unlock_avcodec(void)
3679 av_assert0(ff_avcodec_locked);
3680 ff_avcodec_locked = 0;
3681 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3683 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3690 int avpriv_lock_avformat(void)
3693 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3699 int avpriv_unlock_avformat(void)
3702 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3708 unsigned int avpriv_toupper4(unsigned int x)
3710 return av_toupper(x & 0xFF) +
3711 (av_toupper((x >> 8) & 0xFF) << 8) +
3712 (av_toupper((x >> 16) & 0xFF) << 16) +
3713 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3716 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3720 dst->owner = src->owner;
3722 ret = av_frame_ref(dst->f, src->f);
3726 av_assert0(!dst->progress);
3728 if (src->progress &&
3729 !(dst->progress = av_buffer_ref(src->progress))) {
3730 ff_thread_release_buffer(dst->owner, dst);
3731 return AVERROR(ENOMEM);
3739 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3741 return ff_get_format(avctx, fmt);
3744 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3747 return ff_get_buffer(avctx, f->f, flags);
3750 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3753 av_frame_unref(f->f);
3756 void ff_thread_finish_setup(AVCodecContext *avctx)
3760 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3764 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3768 int ff_thread_can_start_frame(AVCodecContext *avctx)
3773 int ff_alloc_entries(AVCodecContext *avctx, int count)
3778 void ff_reset_entries(AVCodecContext *avctx)
3782 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3786 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3792 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3794 AVCodec *c= avcodec_find_decoder(codec_id);
3796 c= avcodec_find_encoder(codec_id);
3800 if (codec_id <= AV_CODEC_ID_NONE)
3801 return AVMEDIA_TYPE_UNKNOWN;
3802 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3803 return AVMEDIA_TYPE_VIDEO;
3804 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3805 return AVMEDIA_TYPE_AUDIO;
3806 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3807 return AVMEDIA_TYPE_SUBTITLE;
3809 return AVMEDIA_TYPE_UNKNOWN;
3812 int avcodec_is_open(AVCodecContext *s)
3814 return !!s->internal;
3817 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3822 ret = av_bprint_finalize(buf, &str);
3825 if (!av_bprint_is_complete(buf)) {
3827 return AVERROR(ENOMEM);
3830 avctx->extradata = str;
3831 /* Note: the string is NUL terminated (so extradata can be read as a
3832 * string), but the ending character is not accounted in the size (in
3833 * binary formats you are likely not supposed to mux that character). When
3834 * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE
3836 avctx->extradata_size = buf->len;
3840 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3842 uint32_t *av_restrict state)
3846 av_assert0(p <= end);
3850 for (i = 0; i < 3; i++) {
3851 uint32_t tmp = *state << 8;
3852 *state = tmp + *(p++);
3853 if (tmp == 0x100 || p == end)
3858 if (p[-1] > 1 ) p += 3;
3859 else if (p[-2] ) p += 2;
3860 else if (p[-3]|(p[-1]-1)) p++;
3867 p = FFMIN(p, end) - 4;
3868 *state = AV_RB32(p);