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/pixdesc.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/dict.h"
44 #include "libavutil/opt.h"
46 #include "mpegvideo.h"
48 #include "frame_thread_encoder.h"
51 #include "bytestream.h"
64 #include "compat/w32pthreads.h"
66 #include "compat/os2threads.h"
69 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
70 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
72 void * volatile * mutex = arg;
80 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
82 return AVERROR(ENOMEM);
83 if ((err = pthread_mutex_init(tmp, NULL))) {
87 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
88 pthread_mutex_destroy(tmp);
93 if ((err = pthread_mutex_lock(*mutex)))
98 if ((err = pthread_mutex_unlock(*mutex)))
102 case AV_LOCK_DESTROY:
104 pthread_mutex_destroy(*mutex);
106 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
111 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
113 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
117 volatile int ff_avcodec_locked;
118 static int volatile entangled_thread_counter = 0;
119 static void *codec_mutex;
120 static void *avformat_mutex;
122 static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
125 if (min_size <= *size && *p)
127 min_size = FFMAX(17 * min_size / 16 + 32, min_size);
129 *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
136 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
139 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
144 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
145 memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
148 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
151 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
156 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
157 memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
160 /* encoder management */
161 static AVCodec *first_avcodec = NULL;
162 static AVCodec **last_avcodec = &first_avcodec;
164 AVCodec *av_codec_next(const AVCodec *c)
169 return first_avcodec;
172 static av_cold void avcodec_init(void)
174 static int initialized = 0;
176 if (initialized != 0)
181 ff_me_cmp_init_static();
184 int av_codec_is_encoder(const AVCodec *codec)
186 return codec && (codec->encode_sub || codec->encode2);
189 int av_codec_is_decoder(const AVCodec *codec)
191 return codec && codec->decode;
194 av_cold void avcodec_register(AVCodec *codec)
201 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
203 last_avcodec = &codec->next;
205 if (codec->init_static_data)
206 codec->init_static_data(codec);
210 unsigned avcodec_get_edge_width(void)
216 #if FF_API_SET_DIMENSIONS
217 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
219 int ret = ff_set_dimensions(s, width, height);
221 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
226 int ff_set_dimensions(AVCodecContext *s, int width, int height)
228 int ret = av_image_check_size(width, height, 0, s);
233 s->coded_width = width;
234 s->coded_height = height;
235 s->width = FF_CEIL_RSHIFT(width, s->lowres);
236 s->height = FF_CEIL_RSHIFT(height, s->lowres);
241 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
243 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
246 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
248 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
251 avctx->sample_aspect_ratio = sar;
256 int ff_side_data_update_matrix_encoding(AVFrame *frame,
257 enum AVMatrixEncoding matrix_encoding)
259 AVFrameSideData *side_data;
260 enum AVMatrixEncoding *data;
262 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
264 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
265 sizeof(enum AVMatrixEncoding));
268 return AVERROR(ENOMEM);
270 data = (enum AVMatrixEncoding*)side_data->data;
271 *data = matrix_encoding;
276 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
277 int linesize_align[AV_NUM_DATA_POINTERS])
282 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
285 w_align = 1 << desc->log2_chroma_w;
286 h_align = 1 << desc->log2_chroma_h;
289 switch (s->pix_fmt) {
290 case AV_PIX_FMT_YUV420P:
291 case AV_PIX_FMT_YUYV422:
292 case AV_PIX_FMT_YVYU422:
293 case AV_PIX_FMT_UYVY422:
294 case AV_PIX_FMT_YUV422P:
295 case AV_PIX_FMT_YUV440P:
296 case AV_PIX_FMT_YUV444P:
297 case AV_PIX_FMT_GBRAP:
298 case AV_PIX_FMT_GBRP:
299 case AV_PIX_FMT_GRAY8:
300 case AV_PIX_FMT_GRAY16BE:
301 case AV_PIX_FMT_GRAY16LE:
302 case AV_PIX_FMT_YUVJ420P:
303 case AV_PIX_FMT_YUVJ422P:
304 case AV_PIX_FMT_YUVJ440P:
305 case AV_PIX_FMT_YUVJ444P:
306 case AV_PIX_FMT_YUVA420P:
307 case AV_PIX_FMT_YUVA422P:
308 case AV_PIX_FMT_YUVA444P:
309 case AV_PIX_FMT_YUV420P9LE:
310 case AV_PIX_FMT_YUV420P9BE:
311 case AV_PIX_FMT_YUV420P10LE:
312 case AV_PIX_FMT_YUV420P10BE:
313 case AV_PIX_FMT_YUV420P12LE:
314 case AV_PIX_FMT_YUV420P12BE:
315 case AV_PIX_FMT_YUV420P14LE:
316 case AV_PIX_FMT_YUV420P14BE:
317 case AV_PIX_FMT_YUV420P16LE:
318 case AV_PIX_FMT_YUV420P16BE:
319 case AV_PIX_FMT_YUVA420P9LE:
320 case AV_PIX_FMT_YUVA420P9BE:
321 case AV_PIX_FMT_YUVA420P10LE:
322 case AV_PIX_FMT_YUVA420P10BE:
323 case AV_PIX_FMT_YUVA420P16LE:
324 case AV_PIX_FMT_YUVA420P16BE:
325 case AV_PIX_FMT_YUV422P9LE:
326 case AV_PIX_FMT_YUV422P9BE:
327 case AV_PIX_FMT_YUV422P10LE:
328 case AV_PIX_FMT_YUV422P10BE:
329 case AV_PIX_FMT_YUV422P12LE:
330 case AV_PIX_FMT_YUV422P12BE:
331 case AV_PIX_FMT_YUV422P14LE:
332 case AV_PIX_FMT_YUV422P14BE:
333 case AV_PIX_FMT_YUV422P16LE:
334 case AV_PIX_FMT_YUV422P16BE:
335 case AV_PIX_FMT_YUVA422P9LE:
336 case AV_PIX_FMT_YUVA422P9BE:
337 case AV_PIX_FMT_YUVA422P10LE:
338 case AV_PIX_FMT_YUVA422P10BE:
339 case AV_PIX_FMT_YUVA422P16LE:
340 case AV_PIX_FMT_YUVA422P16BE:
341 case AV_PIX_FMT_YUV444P9LE:
342 case AV_PIX_FMT_YUV444P9BE:
343 case AV_PIX_FMT_YUV444P10LE:
344 case AV_PIX_FMT_YUV444P10BE:
345 case AV_PIX_FMT_YUV444P12LE:
346 case AV_PIX_FMT_YUV444P12BE:
347 case AV_PIX_FMT_YUV444P14LE:
348 case AV_PIX_FMT_YUV444P14BE:
349 case AV_PIX_FMT_YUV444P16LE:
350 case AV_PIX_FMT_YUV444P16BE:
351 case AV_PIX_FMT_YUVA444P9LE:
352 case AV_PIX_FMT_YUVA444P9BE:
353 case AV_PIX_FMT_YUVA444P10LE:
354 case AV_PIX_FMT_YUVA444P10BE:
355 case AV_PIX_FMT_YUVA444P16LE:
356 case AV_PIX_FMT_YUVA444P16BE:
357 case AV_PIX_FMT_GBRP9LE:
358 case AV_PIX_FMT_GBRP9BE:
359 case AV_PIX_FMT_GBRP10LE:
360 case AV_PIX_FMT_GBRP10BE:
361 case AV_PIX_FMT_GBRP12LE:
362 case AV_PIX_FMT_GBRP12BE:
363 case AV_PIX_FMT_GBRP14LE:
364 case AV_PIX_FMT_GBRP14BE:
365 case AV_PIX_FMT_GBRP16LE:
366 case AV_PIX_FMT_GBRP16BE:
367 w_align = 16; //FIXME assume 16 pixel per macroblock
368 h_align = 16 * 2; // interlaced needs 2 macroblocks height
370 case AV_PIX_FMT_YUV411P:
371 case AV_PIX_FMT_YUVJ411P:
372 case AV_PIX_FMT_UYYVYY411:
376 case AV_PIX_FMT_YUV410P:
377 if (s->codec_id == AV_CODEC_ID_SVQ1) {
382 case AV_PIX_FMT_RGB555:
383 if (s->codec_id == AV_CODEC_ID_RPZA) {
388 case AV_PIX_FMT_PAL8:
389 case AV_PIX_FMT_BGR8:
390 case AV_PIX_FMT_RGB8:
391 if (s->codec_id == AV_CODEC_ID_SMC ||
392 s->codec_id == AV_CODEC_ID_CINEPAK) {
396 if (s->codec_id == AV_CODEC_ID_JV) {
401 case AV_PIX_FMT_BGR24:
402 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
403 (s->codec_id == AV_CODEC_ID_ZLIB)) {
408 case AV_PIX_FMT_RGB24:
409 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
418 if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) {
419 w_align = FFMAX(w_align, 8);
422 *width = FFALIGN(*width, w_align);
423 *height = FFALIGN(*height, h_align);
424 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres)
425 // some of the optimized chroma MC reads one line too much
426 // which is also done in mpeg decoders with lowres > 0
429 for (i = 0; i < 4; i++)
430 linesize_align[i] = STRIDE_ALIGN;
433 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
435 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
436 int chroma_shift = desc->log2_chroma_w;
437 int linesize_align[AV_NUM_DATA_POINTERS];
440 avcodec_align_dimensions2(s, width, height, linesize_align);
441 align = FFMAX(linesize_align[0], linesize_align[3]);
442 linesize_align[1] <<= chroma_shift;
443 linesize_align[2] <<= chroma_shift;
444 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
445 *width = FFALIGN(*width, align);
448 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
450 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
451 return AVERROR(EINVAL);
454 *xpos = (pos&1) * 128;
455 *ypos = ((pos>>1)^(pos<4)) * 128;
460 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
464 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
465 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
468 return AVCHROMA_LOC_UNSPECIFIED;
471 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
472 enum AVSampleFormat sample_fmt, const uint8_t *buf,
473 int buf_size, int align)
475 int ch, planar, needed_size, ret = 0;
477 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
478 frame->nb_samples, sample_fmt,
480 if (buf_size < needed_size)
481 return AVERROR(EINVAL);
483 planar = av_sample_fmt_is_planar(sample_fmt);
484 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
485 if (!(frame->extended_data = av_mallocz_array(nb_channels,
486 sizeof(*frame->extended_data))))
487 return AVERROR(ENOMEM);
489 frame->extended_data = frame->data;
492 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
493 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
494 sample_fmt, align)) < 0) {
495 if (frame->extended_data != frame->data)
496 av_freep(&frame->extended_data);
499 if (frame->extended_data != frame->data) {
500 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
501 frame->data[ch] = frame->extended_data[ch];
507 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
509 FramePool *pool = avctx->internal->pool;
512 switch (avctx->codec_type) {
513 case AVMEDIA_TYPE_VIDEO: {
516 int w = frame->width;
517 int h = frame->height;
518 int tmpsize, unaligned;
520 if (pool->format == frame->format &&
521 pool->width == frame->width && pool->height == frame->height)
524 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
527 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
528 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
529 av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w);
530 // increase alignment of w for next try (rhs gives the lowest bit set in w)
534 for (i = 0; i < 4; i++)
535 unaligned |= picture.linesize[i] % pool->stride_align[i];
538 tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h,
539 NULL, picture.linesize);
543 for (i = 0; i < 3 && picture.data[i + 1]; i++)
544 size[i] = picture.data[i + 1] - picture.data[i];
545 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
547 for (i = 0; i < 4; i++) {
548 av_buffer_pool_uninit(&pool->pools[i]);
549 pool->linesize[i] = picture.linesize[i];
551 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
552 CONFIG_MEMORY_POISONING ?
555 if (!pool->pools[i]) {
556 ret = AVERROR(ENOMEM);
561 pool->format = frame->format;
562 pool->width = frame->width;
563 pool->height = frame->height;
567 case AVMEDIA_TYPE_AUDIO: {
568 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
569 int planar = av_sample_fmt_is_planar(frame->format);
570 int planes = planar ? ch : 1;
572 if (pool->format == frame->format && pool->planes == planes &&
573 pool->channels == ch && frame->nb_samples == pool->samples)
576 av_buffer_pool_uninit(&pool->pools[0]);
577 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
578 frame->nb_samples, frame->format, 0);
582 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
583 if (!pool->pools[0]) {
584 ret = AVERROR(ENOMEM);
588 pool->format = frame->format;
589 pool->planes = planes;
591 pool->samples = frame->nb_samples;
594 default: av_assert0(0);
598 for (i = 0; i < 4; i++)
599 av_buffer_pool_uninit(&pool->pools[i]);
601 pool->planes = pool->channels = pool->samples = 0;
602 pool->width = pool->height = 0;
606 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
608 FramePool *pool = avctx->internal->pool;
609 int planes = pool->planes;
612 frame->linesize[0] = pool->linesize[0];
614 if (planes > AV_NUM_DATA_POINTERS) {
615 frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
616 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
617 frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
618 sizeof(*frame->extended_buf));
619 if (!frame->extended_data || !frame->extended_buf) {
620 av_freep(&frame->extended_data);
621 av_freep(&frame->extended_buf);
622 return AVERROR(ENOMEM);
625 frame->extended_data = frame->data;
626 av_assert0(frame->nb_extended_buf == 0);
629 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
630 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
633 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
635 for (i = 0; i < frame->nb_extended_buf; i++) {
636 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
637 if (!frame->extended_buf[i])
639 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
642 if (avctx->debug & FF_DEBUG_BUFFERS)
643 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
647 av_frame_unref(frame);
648 return AVERROR(ENOMEM);
651 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
653 FramePool *pool = s->internal->pool;
657 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
661 memset(pic->data, 0, sizeof(pic->data));
662 pic->extended_data = pic->data;
664 for (i = 0; i < 4 && pool->pools[i]; i++) {
665 pic->linesize[i] = pool->linesize[i];
667 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
671 pic->data[i] = pic->buf[i]->data;
673 for (; i < AV_NUM_DATA_POINTERS; i++) {
675 pic->linesize[i] = 0;
677 if (pic->data[1] && !pic->data[2])
678 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
680 if (s->debug & FF_DEBUG_BUFFERS)
681 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
686 return AVERROR(ENOMEM);
689 void avpriv_color_frame(AVFrame *frame, const int c[4])
691 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
694 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
696 for (p = 0; p<desc->nb_components; p++) {
697 uint8_t *dst = frame->data[p];
698 int is_chroma = p == 1 || p == 2;
699 int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
700 int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
701 for (y = 0; y < height; y++) {
702 if (desc->comp[0].depth_minus1 >= 8) {
703 for (x = 0; x<bytes; x++)
704 ((uint16_t*)dst)[x] = c[p];
706 memset(dst, c[p], bytes);
707 dst += frame->linesize[p];
712 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
716 if ((ret = update_frame_pool(avctx, frame)) < 0)
719 #if FF_API_GET_BUFFER
720 FF_DISABLE_DEPRECATION_WARNINGS
721 frame->type = FF_BUFFER_TYPE_INTERNAL;
722 FF_ENABLE_DEPRECATION_WARNINGS
725 switch (avctx->codec_type) {
726 case AVMEDIA_TYPE_VIDEO:
727 return video_get_buffer(avctx, frame);
728 case AVMEDIA_TYPE_AUDIO:
729 return audio_get_buffer(avctx, frame);
735 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
737 AVPacket *pkt = avctx->internal->pkt;
739 static const struct {
740 enum AVPacketSideDataType packet;
741 enum AVFrameSideDataType frame;
743 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
744 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
745 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
749 frame->pkt_pts = pkt->pts;
750 av_frame_set_pkt_pos (frame, pkt->pos);
751 av_frame_set_pkt_duration(frame, pkt->duration);
752 av_frame_set_pkt_size (frame, pkt->size);
754 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
756 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
758 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
762 return AVERROR(ENOMEM);
764 memcpy(frame_sd->data, packet_sd, size);
768 frame->pkt_pts = AV_NOPTS_VALUE;
769 av_frame_set_pkt_pos (frame, -1);
770 av_frame_set_pkt_duration(frame, 0);
771 av_frame_set_pkt_size (frame, -1);
773 frame->reordered_opaque = avctx->reordered_opaque;
775 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
776 frame->color_primaries = avctx->color_primaries;
777 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
778 frame->color_trc = avctx->color_trc;
779 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
780 av_frame_set_colorspace(frame, avctx->colorspace);
781 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
782 av_frame_set_color_range(frame, avctx->color_range);
783 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
784 frame->chroma_location = avctx->chroma_sample_location;
786 switch (avctx->codec->type) {
787 case AVMEDIA_TYPE_VIDEO:
788 frame->format = avctx->pix_fmt;
789 if (!frame->sample_aspect_ratio.num)
790 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
792 if (frame->width && frame->height &&
793 av_image_check_sar(frame->width, frame->height,
794 frame->sample_aspect_ratio) < 0) {
795 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
796 frame->sample_aspect_ratio.num,
797 frame->sample_aspect_ratio.den);
798 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
802 case AVMEDIA_TYPE_AUDIO:
803 if (!frame->sample_rate)
804 frame->sample_rate = avctx->sample_rate;
805 if (frame->format < 0)
806 frame->format = avctx->sample_fmt;
807 if (!frame->channel_layout) {
808 if (avctx->channel_layout) {
809 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
811 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
813 return AVERROR(EINVAL);
816 frame->channel_layout = avctx->channel_layout;
818 if (avctx->channels > FF_SANE_NB_CHANNELS) {
819 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
821 return AVERROR(ENOSYS);
825 av_frame_set_channels(frame, avctx->channels);
831 #if FF_API_GET_BUFFER
832 FF_DISABLE_DEPRECATION_WARNINGS
833 int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
835 return avcodec_default_get_buffer2(avctx, frame, 0);
838 typedef struct CompatReleaseBufPriv {
839 AVCodecContext avctx;
841 uint8_t avframe_padding[1024]; // hack to allow linking to a avutil with larger AVFrame
842 } CompatReleaseBufPriv;
844 static void compat_free_buffer(void *opaque, uint8_t *data)
846 CompatReleaseBufPriv *priv = opaque;
847 if (priv->avctx.release_buffer)
848 priv->avctx.release_buffer(&priv->avctx, &priv->frame);
852 static void compat_release_buffer(void *opaque, uint8_t *data)
854 AVBufferRef *buf = opaque;
855 av_buffer_unref(&buf);
857 FF_ENABLE_DEPRECATION_WARNINGS
860 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
862 return ff_init_buffer_info(avctx, frame);
865 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
867 const AVHWAccel *hwaccel = avctx->hwaccel;
868 int override_dimensions = 1;
871 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
872 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
873 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
874 return AVERROR(EINVAL);
877 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
878 if (frame->width <= 0 || frame->height <= 0) {
879 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
880 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
881 override_dimensions = 0;
884 ret = ff_decode_frame_props(avctx, frame);
887 if ((ret = ff_init_buffer_info(avctx, frame)) < 0)
890 if (hwaccel && hwaccel->alloc_frame) {
891 ret = hwaccel->alloc_frame(avctx, frame);
895 #if FF_API_GET_BUFFER
896 FF_DISABLE_DEPRECATION_WARNINGS
898 * Wrap an old get_buffer()-allocated buffer in a bunch of AVBuffers.
899 * We wrap each plane in its own AVBuffer. Each of those has a reference to
900 * a dummy AVBuffer as its private data, unreffing it on free.
901 * When all the planes are freed, the dummy buffer's free callback calls
904 if (avctx->get_buffer) {
905 CompatReleaseBufPriv *priv = NULL;
906 AVBufferRef *dummy_buf = NULL;
909 if (flags & AV_GET_BUFFER_FLAG_REF)
910 frame->reference = 1;
912 ret = avctx->get_buffer(avctx, frame);
916 /* return if the buffers are already set up
917 * this would happen e.g. when a custom get_buffer() calls
918 * avcodec_default_get_buffer
923 priv = av_mallocz(sizeof(*priv));
925 ret = AVERROR(ENOMEM);
928 priv->avctx = *avctx;
929 priv->frame = *frame;
931 dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0);
933 ret = AVERROR(ENOMEM);
937 #define WRAP_PLANE(ref_out, data, data_size) \
939 AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \
941 ret = AVERROR(ENOMEM); \
944 ref_out = av_buffer_create(data, data_size, compat_release_buffer, \
947 av_frame_unref(frame); \
948 ret = AVERROR(ENOMEM); \
953 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
954 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
956 planes = av_pix_fmt_count_planes(frame->format);
957 /* workaround for AVHWAccel plane count of 0, buf[0] is used as
958 check for allocated buffers: make libavcodec happy */
959 if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
961 if (!desc || planes <= 0) {
962 ret = AVERROR(EINVAL);
966 for (i = 0; i < planes; i++) {
967 int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
968 int plane_size = (frame->height >> v_shift) * frame->linesize[i];
970 WRAP_PLANE(frame->buf[i], frame->data[i], plane_size);
973 int planar = av_sample_fmt_is_planar(frame->format);
974 planes = planar ? avctx->channels : 1;
976 if (planes > FF_ARRAY_ELEMS(frame->buf)) {
977 frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf);
978 frame->extended_buf = av_malloc_array(sizeof(*frame->extended_buf),
979 frame->nb_extended_buf);
980 if (!frame->extended_buf) {
981 ret = AVERROR(ENOMEM);
986 for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++)
987 WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]);
989 for (i = 0; i < frame->nb_extended_buf; i++)
990 WRAP_PLANE(frame->extended_buf[i],
991 frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)],
995 av_buffer_unref(&dummy_buf);
998 frame->width = avctx->width;
999 frame->height = avctx->height;
1004 avctx->release_buffer(avctx, frame);
1006 av_buffer_unref(&dummy_buf);
1009 FF_ENABLE_DEPRECATION_WARNINGS
1012 ret = avctx->get_buffer2(avctx, frame, flags);
1015 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
1016 frame->width = avctx->width;
1017 frame->height = avctx->height;
1023 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1025 int ret = get_buffer_internal(avctx, frame, flags);
1027 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1031 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
1036 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
1038 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
1039 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
1040 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
1041 av_frame_unref(frame);
1044 ff_init_buffer_info(avctx, frame);
1046 if (!frame->data[0])
1047 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1049 if (av_frame_is_writable(frame))
1050 return ff_decode_frame_props(avctx, frame);
1052 tmp = av_frame_alloc();
1054 return AVERROR(ENOMEM);
1056 av_frame_move_ref(tmp, frame);
1058 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1060 av_frame_free(&tmp);
1064 av_frame_copy(frame, tmp);
1065 av_frame_free(&tmp);
1070 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
1072 int ret = reget_buffer_internal(avctx, frame);
1074 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1078 #if FF_API_GET_BUFFER
1079 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
1081 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
1083 av_frame_unref(pic);
1086 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
1093 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
1097 for (i = 0; i < count; i++) {
1098 int r = func(c, (char *)arg + i * size);
1105 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
1109 for (i = 0; i < count; i++) {
1110 int r = func(c, arg, i, 0);
1117 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
1118 unsigned int fourcc)
1120 while (tags->pix_fmt >= 0) {
1121 if (tags->fourcc == fourcc)
1122 return tags->pix_fmt;
1125 return AV_PIX_FMT_NONE;
1128 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
1130 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1131 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1134 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
1136 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1141 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
1142 enum AVPixelFormat pix_fmt)
1144 AVHWAccel *hwaccel = NULL;
1146 while ((hwaccel = av_hwaccel_next(hwaccel)))
1147 if (hwaccel->id == codec_id
1148 && hwaccel->pix_fmt == pix_fmt)
1153 static int setup_hwaccel(AVCodecContext *avctx,
1154 const enum AVPixelFormat fmt,
1157 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1161 av_log(avctx, AV_LOG_ERROR,
1162 "Could not find an AVHWAccel for the pixel format: %s",
1164 return AVERROR(ENOENT);
1167 if (hwa->priv_data_size) {
1168 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
1169 if (!avctx->internal->hwaccel_priv_data)
1170 return AVERROR(ENOMEM);
1174 ret = hwa->init(avctx);
1176 av_freep(&avctx->internal->hwaccel_priv_data);
1181 avctx->hwaccel = hwa;
1186 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1188 const AVPixFmtDescriptor *desc;
1189 enum AVPixelFormat *choices;
1190 enum AVPixelFormat ret;
1193 while (fmt[n] != AV_PIX_FMT_NONE)
1196 choices = av_malloc_array(n + 1, sizeof(*choices));
1198 return AV_PIX_FMT_NONE;
1200 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1203 if (avctx->hwaccel && avctx->hwaccel->uninit)
1204 avctx->hwaccel->uninit(avctx);
1205 av_freep(&avctx->internal->hwaccel_priv_data);
1206 avctx->hwaccel = NULL;
1208 ret = avctx->get_format(avctx, choices);
1210 desc = av_pix_fmt_desc_get(ret);
1212 ret = AV_PIX_FMT_NONE;
1216 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1218 if (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
1221 if (!setup_hwaccel(avctx, ret, desc->name))
1224 /* Remove failed hwaccel from choices */
1225 for (n = 0; choices[n] != ret; n++)
1226 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1229 choices[n] = choices[n + 1];
1230 while (choices[n++] != AV_PIX_FMT_NONE);
1237 #if FF_API_AVFRAME_LAVC
1238 void avcodec_get_frame_defaults(AVFrame *frame)
1240 #if LIBAVCODEC_VERSION_MAJOR >= 55
1241 // extended_data should explicitly be freed when needed, this code is unsafe currently
1242 // also this is not compatible to the <55 ABI/API
1243 if (frame->extended_data != frame->data && 0)
1244 av_freep(&frame->extended_data);
1247 memset(frame, 0, sizeof(AVFrame));
1248 av_frame_unref(frame);
1251 AVFrame *avcodec_alloc_frame(void)
1253 return av_frame_alloc();
1256 void avcodec_free_frame(AVFrame **frame)
1258 av_frame_free(frame);
1262 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1263 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1264 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1265 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1266 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1268 int av_codec_get_max_lowres(const AVCodec *codec)
1270 return codec->max_lowres;
1273 static void get_subtitle_defaults(AVSubtitle *sub)
1275 memset(sub, 0, sizeof(*sub));
1276 sub->pts = AV_NOPTS_VALUE;
1279 static int get_bit_rate(AVCodecContext *ctx)
1282 int bits_per_sample;
1284 switch (ctx->codec_type) {
1285 case AVMEDIA_TYPE_VIDEO:
1286 case AVMEDIA_TYPE_DATA:
1287 case AVMEDIA_TYPE_SUBTITLE:
1288 case AVMEDIA_TYPE_ATTACHMENT:
1289 bit_rate = ctx->bit_rate;
1291 case AVMEDIA_TYPE_AUDIO:
1292 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1293 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1302 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1306 ff_unlock_avcodec();
1308 ret = avcodec_open2(avctx, codec, options);
1310 ff_lock_avcodec(avctx);
1314 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1317 AVDictionary *tmp = NULL;
1319 if (avcodec_is_open(avctx))
1322 if ((!codec && !avctx->codec)) {
1323 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1324 return AVERROR(EINVAL);
1326 if ((codec && avctx->codec && codec != avctx->codec)) {
1327 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1328 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1329 return AVERROR(EINVAL);
1332 codec = avctx->codec;
1334 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1335 return AVERROR(EINVAL);
1338 av_dict_copy(&tmp, *options, 0);
1340 ret = ff_lock_avcodec(avctx);
1344 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1345 if (!avctx->internal) {
1346 ret = AVERROR(ENOMEM);
1350 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1351 if (!avctx->internal->pool) {
1352 ret = AVERROR(ENOMEM);
1356 avctx->internal->to_free = av_frame_alloc();
1357 if (!avctx->internal->to_free) {
1358 ret = AVERROR(ENOMEM);
1362 if (codec->priv_data_size > 0) {
1363 if (!avctx->priv_data) {
1364 avctx->priv_data = av_mallocz(codec->priv_data_size);
1365 if (!avctx->priv_data) {
1366 ret = AVERROR(ENOMEM);
1369 if (codec->priv_class) {
1370 *(const AVClass **)avctx->priv_data = codec->priv_class;
1371 av_opt_set_defaults(avctx->priv_data);
1374 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1377 avctx->priv_data = NULL;
1379 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1382 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1383 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist\n", codec->name);
1384 ret = AVERROR(EINVAL);
1388 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1389 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1390 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1391 if (avctx->coded_width && avctx->coded_height)
1392 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1393 else if (avctx->width && avctx->height)
1394 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1399 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1400 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1401 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1402 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1403 ff_set_dimensions(avctx, 0, 0);
1406 if (avctx->width > 0 && avctx->height > 0) {
1407 if (av_image_check_sar(avctx->width, avctx->height,
1408 avctx->sample_aspect_ratio) < 0) {
1409 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1410 avctx->sample_aspect_ratio.num,
1411 avctx->sample_aspect_ratio.den);
1412 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1416 /* if the decoder init function was already called previously,
1417 * free the already allocated subtitle_header before overwriting it */
1418 if (av_codec_is_decoder(codec))
1419 av_freep(&avctx->subtitle_header);
1421 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1422 ret = AVERROR(EINVAL);
1426 avctx->codec = codec;
1427 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1428 avctx->codec_id == AV_CODEC_ID_NONE) {
1429 avctx->codec_type = codec->type;
1430 avctx->codec_id = codec->id;
1432 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1433 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1434 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1435 ret = AVERROR(EINVAL);
1438 avctx->frame_number = 0;
1439 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1441 if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1442 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1443 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1445 av_log(avctx, AV_LOG_ERROR,
1446 "The %s '%s' is experimental but experimental codecs are not enabled, "
1447 "add '-strict %d' if you want to use it.\n",
1448 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1449 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1450 if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
1451 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1452 codec_string, codec2->name);
1453 ret = AVERROR_EXPERIMENTAL;
1457 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1458 (!avctx->time_base.num || !avctx->time_base.den)) {
1459 avctx->time_base.num = 1;
1460 avctx->time_base.den = avctx->sample_rate;
1464 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1466 if (CONFIG_FRAME_THREAD_ENCODER) {
1467 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1468 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1469 ff_lock_avcodec(avctx);
1475 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1476 ret = ff_thread_init(avctx);
1481 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
1482 avctx->thread_count = 1;
1484 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1485 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1486 avctx->codec->max_lowres);
1487 ret = AVERROR(EINVAL);
1492 if (avctx->debug_mv)
1493 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1494 "see the codecview filter instead.\n");
1497 if (av_codec_is_encoder(avctx->codec)) {
1499 if (avctx->codec->sample_fmts) {
1500 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1501 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1503 if (avctx->channels == 1 &&
1504 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1505 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1506 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1510 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1512 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1513 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1514 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1515 ret = AVERROR(EINVAL);
1519 if (avctx->codec->pix_fmts) {
1520 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1521 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1523 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1524 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1525 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1527 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1528 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1529 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1530 ret = AVERROR(EINVAL);
1533 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1534 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1535 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1536 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1537 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1538 avctx->color_range = AVCOL_RANGE_JPEG;
1540 if (avctx->codec->supported_samplerates) {
1541 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1542 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1544 if (avctx->codec->supported_samplerates[i] == 0) {
1545 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1546 avctx->sample_rate);
1547 ret = AVERROR(EINVAL);
1551 if (avctx->codec->channel_layouts) {
1552 if (!avctx->channel_layout) {
1553 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1555 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1556 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1558 if (avctx->codec->channel_layouts[i] == 0) {
1560 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1561 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1562 ret = AVERROR(EINVAL);
1567 if (avctx->channel_layout && avctx->channels) {
1568 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1569 if (channels != avctx->channels) {
1571 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1572 av_log(avctx, AV_LOG_ERROR,
1573 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1574 buf, channels, avctx->channels);
1575 ret = AVERROR(EINVAL);
1578 } else if (avctx->channel_layout) {
1579 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1581 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1582 if (avctx->width <= 0 || avctx->height <= 0) {
1583 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1584 ret = AVERROR(EINVAL);
1588 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1589 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1590 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1593 if (!avctx->rc_initial_buffer_occupancy)
1594 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1597 avctx->pts_correction_num_faulty_pts =
1598 avctx->pts_correction_num_faulty_dts = 0;
1599 avctx->pts_correction_last_pts =
1600 avctx->pts_correction_last_dts = INT64_MIN;
1602 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1603 || avctx->internal->frame_thread_encoder)) {
1604 ret = avctx->codec->init(avctx);
1612 #if FF_API_AUDIOENC_DELAY
1613 if (av_codec_is_encoder(avctx->codec))
1614 avctx->delay = avctx->initial_padding;
1617 if (av_codec_is_decoder(avctx->codec)) {
1618 if (!avctx->bit_rate)
1619 avctx->bit_rate = get_bit_rate(avctx);
1620 /* validate channel layout from the decoder */
1621 if (avctx->channel_layout) {
1622 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1623 if (!avctx->channels)
1624 avctx->channels = channels;
1625 else if (channels != avctx->channels) {
1627 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1628 av_log(avctx, AV_LOG_WARNING,
1629 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1630 "ignoring specified channel layout\n",
1631 buf, channels, avctx->channels);
1632 avctx->channel_layout = 0;
1635 if (avctx->channels && avctx->channels < 0 ||
1636 avctx->channels > FF_SANE_NB_CHANNELS) {
1637 ret = AVERROR(EINVAL);
1640 if (avctx->sub_charenc) {
1641 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1642 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1643 "supported with subtitles codecs\n");
1644 ret = AVERROR(EINVAL);
1646 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1647 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1648 "subtitles character encoding will be ignored\n",
1649 avctx->codec_descriptor->name);
1650 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1652 /* input character encoding is set for a text based subtitle
1653 * codec at this point */
1654 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1655 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1657 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1659 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1660 if (cd == (iconv_t)-1) {
1661 ret = AVERROR(errno);
1662 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1663 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1668 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1669 "conversion needs a libavcodec built with iconv support "
1670 "for this codec\n");
1671 ret = AVERROR(ENOSYS);
1678 #if FF_API_AVCTX_TIMEBASE
1679 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1680 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1683 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1684 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1688 ff_unlock_avcodec();
1690 av_dict_free(options);
1697 if (codec->priv_class && codec->priv_data_size)
1698 av_opt_free(avctx->priv_data);
1699 av_freep(&avctx->priv_data);
1700 if (avctx->internal) {
1701 av_frame_free(&avctx->internal->to_free);
1702 av_freep(&avctx->internal->pool);
1704 av_freep(&avctx->internal);
1705 avctx->codec = NULL;
1709 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
1711 if (avpkt->size < 0) {
1712 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1713 return AVERROR(EINVAL);
1715 if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1716 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1717 size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
1718 return AVERROR(EINVAL);
1722 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1723 if (!avpkt->data || avpkt->size < size) {
1724 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1725 avpkt->data = avctx->internal->byte_buffer;
1726 avpkt->size = avctx->internal->byte_buffer_size;
1727 #if FF_API_DESTRUCT_PACKET
1728 FF_DISABLE_DEPRECATION_WARNINGS
1729 avpkt->destruct = NULL;
1730 FF_ENABLE_DEPRECATION_WARNINGS
1736 AVBufferRef *buf = avpkt->buf;
1737 #if FF_API_DESTRUCT_PACKET
1738 FF_DISABLE_DEPRECATION_WARNINGS
1739 void *destruct = avpkt->destruct;
1740 FF_ENABLE_DEPRECATION_WARNINGS
1743 if (avpkt->size < size) {
1744 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1745 return AVERROR(EINVAL);
1748 av_init_packet(avpkt);
1749 #if FF_API_DESTRUCT_PACKET
1750 FF_DISABLE_DEPRECATION_WARNINGS
1751 avpkt->destruct = destruct;
1752 FF_ENABLE_DEPRECATION_WARNINGS
1758 int ret = av_new_packet(avpkt, size);
1760 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1765 int ff_alloc_packet(AVPacket *avpkt, int size)
1767 return ff_alloc_packet2(NULL, avpkt, size);
1771 * Pad last frame with silence.
1773 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1775 AVFrame *frame = NULL;
1778 if (!(frame = av_frame_alloc()))
1779 return AVERROR(ENOMEM);
1781 frame->format = src->format;
1782 frame->channel_layout = src->channel_layout;
1783 av_frame_set_channels(frame, av_frame_get_channels(src));
1784 frame->nb_samples = s->frame_size;
1785 ret = av_frame_get_buffer(frame, 32);
1789 ret = av_frame_copy_props(frame, src);
1793 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1794 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1796 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1797 frame->nb_samples - src->nb_samples,
1798 s->channels, s->sample_fmt)) < 0)
1806 av_frame_free(&frame);
1810 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1812 const AVFrame *frame,
1813 int *got_packet_ptr)
1815 AVFrame *extended_frame = NULL;
1816 AVFrame *padded_frame = NULL;
1818 AVPacket user_pkt = *avpkt;
1819 int needs_realloc = !user_pkt.data;
1821 *got_packet_ptr = 0;
1823 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1824 av_free_packet(avpkt);
1825 av_init_packet(avpkt);
1829 /* ensure that extended_data is properly set */
1830 if (frame && !frame->extended_data) {
1831 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1832 avctx->channels > AV_NUM_DATA_POINTERS) {
1833 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1834 "with more than %d channels, but extended_data is not set.\n",
1835 AV_NUM_DATA_POINTERS);
1836 return AVERROR(EINVAL);
1838 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1840 extended_frame = av_frame_alloc();
1841 if (!extended_frame)
1842 return AVERROR(ENOMEM);
1844 memcpy(extended_frame, frame, sizeof(AVFrame));
1845 extended_frame->extended_data = extended_frame->data;
1846 frame = extended_frame;
1849 /* check for valid frame size */
1851 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1852 if (frame->nb_samples > avctx->frame_size) {
1853 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1854 ret = AVERROR(EINVAL);
1857 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1858 if (frame->nb_samples < avctx->frame_size &&
1859 !avctx->internal->last_audio_frame) {
1860 ret = pad_last_frame(avctx, &padded_frame, frame);
1864 frame = padded_frame;
1865 avctx->internal->last_audio_frame = 1;
1868 if (frame->nb_samples != avctx->frame_size) {
1869 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1870 ret = AVERROR(EINVAL);
1876 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1878 if (*got_packet_ptr) {
1879 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1880 if (avpkt->pts == AV_NOPTS_VALUE)
1881 avpkt->pts = frame->pts;
1882 if (!avpkt->duration)
1883 avpkt->duration = ff_samples_to_time_base(avctx,
1886 avpkt->dts = avpkt->pts;
1891 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1893 if (user_pkt.data) {
1894 if (user_pkt.size >= avpkt->size) {
1895 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1897 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1898 avpkt->size = user_pkt.size;
1901 avpkt->buf = user_pkt.buf;
1902 avpkt->data = user_pkt.data;
1903 #if FF_API_DESTRUCT_PACKET
1904 FF_DISABLE_DEPRECATION_WARNINGS
1905 avpkt->destruct = user_pkt.destruct;
1906 FF_ENABLE_DEPRECATION_WARNINGS
1909 if (av_dup_packet(avpkt) < 0) {
1910 ret = AVERROR(ENOMEM);
1916 if (needs_realloc && avpkt->data) {
1917 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1919 avpkt->data = avpkt->buf->data;
1922 avctx->frame_number++;
1925 if (ret < 0 || !*got_packet_ptr) {
1926 av_free_packet(avpkt);
1927 av_init_packet(avpkt);
1931 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1932 * this needs to be moved to the encoders, but for now we can do it
1933 * here to simplify things */
1934 avpkt->flags |= AV_PKT_FLAG_KEY;
1937 av_frame_free(&padded_frame);
1938 av_free(extended_frame);
1940 #if FF_API_AUDIOENC_DELAY
1941 avctx->delay = avctx->initial_padding;
1947 #if FF_API_OLD_ENCODE_AUDIO
1948 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
1949 uint8_t *buf, int buf_size,
1950 const short *samples)
1954 int ret, samples_size, got_packet;
1956 av_init_packet(&pkt);
1958 pkt.size = buf_size;
1961 frame = av_frame_alloc();
1963 return AVERROR(ENOMEM);
1965 if (avctx->frame_size) {
1966 frame->nb_samples = avctx->frame_size;
1968 /* if frame_size is not set, the number of samples must be
1969 * calculated from the buffer size */
1971 if (!av_get_bits_per_sample(avctx->codec_id)) {
1972 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
1973 "support this codec\n");
1974 av_frame_free(&frame);
1975 return AVERROR(EINVAL);
1977 nb_samples = (int64_t)buf_size * 8 /
1978 (av_get_bits_per_sample(avctx->codec_id) *
1980 if (nb_samples >= INT_MAX) {
1981 av_frame_free(&frame);
1982 return AVERROR(EINVAL);
1984 frame->nb_samples = nb_samples;
1987 /* it is assumed that the samples buffer is large enough based on the
1988 * relevant parameters */
1989 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
1991 avctx->sample_fmt, 1);
1992 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
1994 (const uint8_t *)samples,
1995 samples_size, 1)) < 0) {
1996 av_frame_free(&frame);
2000 /* fabricate frame pts from sample count.
2001 * this is needed because the avcodec_encode_audio() API does not have
2002 * a way for the user to provide pts */
2003 if (avctx->sample_rate && avctx->time_base.num)
2004 frame->pts = ff_samples_to_time_base(avctx,
2005 avctx->internal->sample_count);
2007 frame->pts = AV_NOPTS_VALUE;
2008 avctx->internal->sample_count += frame->nb_samples;
2014 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
2015 if (!ret && got_packet && avctx->coded_frame) {
2016 avctx->coded_frame->pts = pkt.pts;
2017 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2019 /* free any side data since we cannot return it */
2020 av_packet_free_side_data(&pkt);
2022 if (frame && frame->extended_data != frame->data)
2023 av_freep(&frame->extended_data);
2025 av_frame_free(&frame);
2026 return ret ? ret : pkt.size;
2031 #if FF_API_OLD_ENCODE_VIDEO
2032 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2033 const AVFrame *pict)
2036 int ret, got_packet = 0;
2038 if (buf_size < FF_MIN_BUFFER_SIZE) {
2039 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
2043 av_init_packet(&pkt);
2045 pkt.size = buf_size;
2047 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
2048 if (!ret && got_packet && avctx->coded_frame) {
2049 avctx->coded_frame->pts = pkt.pts;
2050 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2053 /* free any side data since we cannot return it */
2054 if (pkt.side_data_elems > 0) {
2056 for (i = 0; i < pkt.side_data_elems; i++)
2057 av_free(pkt.side_data[i].data);
2058 av_freep(&pkt.side_data);
2059 pkt.side_data_elems = 0;
2062 return ret ? ret : pkt.size;
2067 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
2069 const AVFrame *frame,
2070 int *got_packet_ptr)
2073 AVPacket user_pkt = *avpkt;
2074 int needs_realloc = !user_pkt.data;
2076 *got_packet_ptr = 0;
2078 if(CONFIG_FRAME_THREAD_ENCODER &&
2079 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
2080 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
2082 if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
2083 avctx->stats_out[0] = '\0';
2085 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
2086 av_free_packet(avpkt);
2087 av_init_packet(avpkt);
2092 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
2093 return AVERROR(EINVAL);
2095 if (frame && frame->format == AV_PIX_FMT_NONE)
2096 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
2097 if (frame && (frame->width == 0 || frame->height == 0))
2098 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
2100 av_assert0(avctx->codec->encode2);
2102 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2103 av_assert0(ret <= 0);
2105 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2107 if (user_pkt.data) {
2108 if (user_pkt.size >= avpkt->size) {
2109 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2111 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2112 avpkt->size = user_pkt.size;
2115 avpkt->buf = user_pkt.buf;
2116 avpkt->data = user_pkt.data;
2117 #if FF_API_DESTRUCT_PACKET
2118 FF_DISABLE_DEPRECATION_WARNINGS
2119 avpkt->destruct = user_pkt.destruct;
2120 FF_ENABLE_DEPRECATION_WARNINGS
2123 if (av_dup_packet(avpkt) < 0) {
2124 ret = AVERROR(ENOMEM);
2130 if (!*got_packet_ptr)
2132 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
2133 avpkt->pts = avpkt->dts = frame->pts;
2135 if (needs_realloc && avpkt->data) {
2136 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
2138 avpkt->data = avpkt->buf->data;
2141 avctx->frame_number++;
2144 if (ret < 0 || !*got_packet_ptr)
2145 av_free_packet(avpkt);
2147 av_packet_merge_side_data(avpkt);
2153 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2154 const AVSubtitle *sub)
2157 if (sub->start_display_time) {
2158 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2162 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2163 avctx->frame_number++;
2168 * Attempt to guess proper monotonic timestamps for decoded video frames
2169 * which might have incorrect times. Input timestamps may wrap around, in
2170 * which case the output will as well.
2172 * @param pts the pts field of the decoded AVPacket, as passed through
2174 * @param dts the dts field of the decoded AVPacket
2175 * @return one of the input values, may be AV_NOPTS_VALUE
2177 static int64_t guess_correct_pts(AVCodecContext *ctx,
2178 int64_t reordered_pts, int64_t dts)
2180 int64_t pts = AV_NOPTS_VALUE;
2182 if (dts != AV_NOPTS_VALUE) {
2183 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2184 ctx->pts_correction_last_dts = dts;
2185 } else if (reordered_pts != AV_NOPTS_VALUE)
2186 ctx->pts_correction_last_dts = reordered_pts;
2188 if (reordered_pts != AV_NOPTS_VALUE) {
2189 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2190 ctx->pts_correction_last_pts = reordered_pts;
2191 } else if(dts != AV_NOPTS_VALUE)
2192 ctx->pts_correction_last_pts = dts;
2194 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2195 && reordered_pts != AV_NOPTS_VALUE)
2196 pts = reordered_pts;
2203 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2206 const uint8_t *data;
2209 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2213 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) {
2214 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2215 "changes, but PARAM_CHANGE side data was sent to it.\n");
2216 return AVERROR(EINVAL);
2222 flags = bytestream_get_le32(&data);
2225 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2228 avctx->channels = bytestream_get_le32(&data);
2231 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2234 avctx->channel_layout = bytestream_get_le64(&data);
2237 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2240 avctx->sample_rate = bytestream_get_le32(&data);
2243 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2246 avctx->width = bytestream_get_le32(&data);
2247 avctx->height = bytestream_get_le32(&data);
2249 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2256 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2257 return AVERROR_INVALIDDATA;
2260 static int add_metadata_from_side_data(AVCodecContext *avctx, AVFrame *frame)
2263 const uint8_t *side_metadata;
2265 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
2267 side_metadata = av_packet_get_side_data(avctx->internal->pkt,
2268 AV_PKT_DATA_STRINGS_METADATA, &size);
2269 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
2272 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2276 /* move the original frame to our backup */
2277 av_frame_unref(avci->to_free);
2278 av_frame_move_ref(avci->to_free, frame);
2280 /* now copy everything except the AVBufferRefs back
2281 * note that we make a COPY of the side data, so calling av_frame_free() on
2282 * the caller's frame will work properly */
2283 ret = av_frame_copy_props(frame, avci->to_free);
2287 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2288 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2289 if (avci->to_free->extended_data != avci->to_free->data) {
2290 int planes = av_frame_get_channels(avci->to_free);
2291 int size = planes * sizeof(*frame->extended_data);
2294 av_frame_unref(frame);
2298 frame->extended_data = av_malloc(size);
2299 if (!frame->extended_data) {
2300 av_frame_unref(frame);
2301 return AVERROR(ENOMEM);
2303 memcpy(frame->extended_data, avci->to_free->extended_data,
2306 frame->extended_data = frame->data;
2308 frame->format = avci->to_free->format;
2309 frame->width = avci->to_free->width;
2310 frame->height = avci->to_free->height;
2311 frame->channel_layout = avci->to_free->channel_layout;
2312 frame->nb_samples = avci->to_free->nb_samples;
2313 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2318 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2319 int *got_picture_ptr,
2320 const AVPacket *avpkt)
2322 AVCodecInternal *avci = avctx->internal;
2324 // copy to ensure we do not change avpkt
2325 AVPacket tmp = *avpkt;
2328 return AVERROR(EINVAL);
2329 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2330 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2331 return AVERROR(EINVAL);
2334 *got_picture_ptr = 0;
2335 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2336 return AVERROR(EINVAL);
2338 av_frame_unref(picture);
2340 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2341 int did_split = av_packet_split_side_data(&tmp);
2342 ret = apply_param_change(avctx, &tmp);
2344 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2345 if (avctx->err_recognition & AV_EF_EXPLODE)
2349 avctx->internal->pkt = &tmp;
2350 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2351 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2354 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2356 picture->pkt_dts = avpkt->dts;
2358 if(!avctx->has_b_frames){
2359 av_frame_set_pkt_pos(picture, avpkt->pos);
2361 //FIXME these should be under if(!avctx->has_b_frames)
2362 /* get_buffer is supposed to set frame parameters */
2363 if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
2364 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2365 if (!picture->width) picture->width = avctx->width;
2366 if (!picture->height) picture->height = avctx->height;
2367 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2370 add_metadata_from_side_data(avctx, picture);
2373 emms_c(); //needed to avoid an emms_c() call before every return;
2375 avctx->internal->pkt = NULL;
2377 av_packet_free_side_data(&tmp);
2382 if (*got_picture_ptr) {
2383 if (!avctx->refcounted_frames) {
2384 int err = unrefcount_frame(avci, picture);
2389 avctx->frame_number++;
2390 av_frame_set_best_effort_timestamp(picture,
2391 guess_correct_pts(avctx,
2395 av_frame_unref(picture);
2399 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2400 * make sure it's set correctly */
2401 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2403 #if FF_API_AVCTX_TIMEBASE
2404 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2405 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2411 #if FF_API_OLD_DECODE_AUDIO
2412 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2413 int *frame_size_ptr,
2416 AVFrame *frame = av_frame_alloc();
2417 int ret, got_frame = 0;
2420 return AVERROR(ENOMEM);
2421 if (avctx->get_buffer != avcodec_default_get_buffer) {
2422 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2423 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2424 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2425 "avcodec_decode_audio4()\n");
2426 avctx->get_buffer = avcodec_default_get_buffer;
2427 avctx->release_buffer = avcodec_default_release_buffer;
2430 ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt);
2432 if (ret >= 0 && got_frame) {
2434 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2435 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2437 avctx->sample_fmt, 1);
2438 if (*frame_size_ptr < data_size) {
2439 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2440 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2441 av_frame_free(&frame);
2442 return AVERROR(EINVAL);
2445 memcpy(samples, frame->extended_data[0], plane_size);
2447 if (planar && avctx->channels > 1) {
2448 uint8_t *out = ((uint8_t *)samples) + plane_size;
2449 for (ch = 1; ch < avctx->channels; ch++) {
2450 memcpy(out, frame->extended_data[ch], plane_size);
2454 *frame_size_ptr = data_size;
2456 *frame_size_ptr = 0;
2458 av_frame_free(&frame);
2464 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2467 const AVPacket *avpkt)
2469 AVCodecInternal *avci = avctx->internal;
2474 if (!avpkt->data && avpkt->size) {
2475 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2476 return AVERROR(EINVAL);
2479 return AVERROR(EINVAL);
2480 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2481 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2482 return AVERROR(EINVAL);
2485 av_frame_unref(frame);
2487 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2490 uint32_t discard_padding = 0;
2491 uint8_t skip_reason = 0;
2492 uint8_t discard_reason = 0;
2493 // copy to ensure we do not change avpkt
2494 AVPacket tmp = *avpkt;
2495 int did_split = av_packet_split_side_data(&tmp);
2496 ret = apply_param_change(avctx, &tmp);
2498 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2499 if (avctx->err_recognition & AV_EF_EXPLODE)
2503 avctx->internal->pkt = &tmp;
2504 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2505 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2507 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2508 frame->pkt_dts = avpkt->dts;
2510 if (ret >= 0 && *got_frame_ptr) {
2511 add_metadata_from_side_data(avctx, frame);
2512 avctx->frame_number++;
2513 av_frame_set_best_effort_timestamp(frame,
2514 guess_correct_pts(avctx,
2517 if (frame->format == AV_SAMPLE_FMT_NONE)
2518 frame->format = avctx->sample_fmt;
2519 if (!frame->channel_layout)
2520 frame->channel_layout = avctx->channel_layout;
2521 if (!av_frame_get_channels(frame))
2522 av_frame_set_channels(frame, avctx->channels);
2523 if (!frame->sample_rate)
2524 frame->sample_rate = avctx->sample_rate;
2527 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2528 if(side && side_size>=10) {
2529 avctx->internal->skip_samples = AV_RL32(side);
2530 av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n",
2531 avctx->internal->skip_samples);
2532 discard_padding = AV_RL32(side + 4);
2533 skip_reason = AV_RL8(side + 8);
2534 discard_reason = AV_RL8(side + 9);
2536 if (avctx->internal->skip_samples && *got_frame_ptr &&
2537 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2538 if(frame->nb_samples <= avctx->internal->skip_samples){
2540 avctx->internal->skip_samples -= frame->nb_samples;
2541 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2542 avctx->internal->skip_samples);
2544 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2545 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2546 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2547 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2548 (AVRational){1, avctx->sample_rate},
2549 avctx->pkt_timebase);
2550 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2551 frame->pkt_pts += diff_ts;
2552 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2553 frame->pkt_dts += diff_ts;
2554 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2555 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2557 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2559 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2560 avctx->internal->skip_samples, frame->nb_samples);
2561 frame->nb_samples -= avctx->internal->skip_samples;
2562 avctx->internal->skip_samples = 0;
2566 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2567 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2568 if (discard_padding == frame->nb_samples) {
2571 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2572 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2573 (AVRational){1, avctx->sample_rate},
2574 avctx->pkt_timebase);
2575 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2576 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2578 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2580 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2581 discard_padding, frame->nb_samples);
2582 frame->nb_samples -= discard_padding;
2586 if ((avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2587 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2589 AV_WL32(fside->data, avctx->internal->skip_samples);
2590 AV_WL32(fside->data + 4, discard_padding);
2591 AV_WL8(fside->data + 8, skip_reason);
2592 AV_WL8(fside->data + 9, discard_reason);
2593 avctx->internal->skip_samples = 0;
2597 avctx->internal->pkt = NULL;
2599 av_packet_free_side_data(&tmp);
2604 if (ret >= 0 && *got_frame_ptr) {
2605 if (!avctx->refcounted_frames) {
2606 int err = unrefcount_frame(avci, frame);
2611 av_frame_unref(frame);
2617 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2618 static int recode_subtitle(AVCodecContext *avctx,
2619 AVPacket *outpkt, const AVPacket *inpkt)
2622 iconv_t cd = (iconv_t)-1;
2629 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2633 cd = iconv_open("UTF-8", avctx->sub_charenc);
2634 av_assert0(cd != (iconv_t)-1);
2639 if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) {
2640 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2641 ret = AVERROR(ENOMEM);
2645 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2648 outpkt->buf = tmp.buf;
2649 outpkt->data = tmp.data;
2650 outpkt->size = tmp.size;
2651 outb = outpkt->data;
2652 outl = outpkt->size;
2654 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2655 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2656 outl >= outpkt->size || inl != 0) {
2657 ret = FFMIN(AVERROR(errno), -1);
2658 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2659 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2660 av_free_packet(&tmp);
2663 outpkt->size -= outl;
2664 memset(outpkt->data + outpkt->size, 0, outl);
2667 if (cd != (iconv_t)-1)
2671 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2672 return AVERROR(EINVAL);
2676 static int utf8_check(const uint8_t *str)
2678 const uint8_t *byte;
2679 uint32_t codepoint, min;
2683 GET_UTF8(codepoint, *(byte++), return 0;);
2684 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2685 1 << (5 * (byte - str) - 4);
2686 if (codepoint < min || codepoint >= 0x110000 ||
2687 codepoint == 0xFFFE /* BOM */ ||
2688 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2695 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2701 if (!avpkt->data && avpkt->size) {
2702 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2703 return AVERROR(EINVAL);
2706 return AVERROR(EINVAL);
2707 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2708 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2709 return AVERROR(EINVAL);
2713 get_subtitle_defaults(sub);
2715 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
2716 AVPacket pkt_recoded;
2717 AVPacket tmp = *avpkt;
2718 int did_split = av_packet_split_side_data(&tmp);
2719 //apply_param_change(avctx, &tmp);
2722 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2724 * If the side data is smaller than the buffer padding size, the
2725 * remaining bytes should have already been filled with zeros by the
2726 * original packet allocation anyway. */
2727 memset(tmp.data + tmp.size, 0,
2728 FFMIN(avpkt->size - tmp.size, FF_INPUT_BUFFER_PADDING_SIZE));
2732 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2736 avctx->internal->pkt = &pkt_recoded;
2738 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2739 sub->pts = av_rescale_q(avpkt->pts,
2740 avctx->pkt_timebase, AV_TIME_BASE_Q);
2741 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2742 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2743 !!*got_sub_ptr >= !!sub->num_rects);
2745 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2746 avctx->pkt_timebase.num) {
2747 AVRational ms = { 1, 1000 };
2748 sub->end_display_time = av_rescale_q(avpkt->duration,
2749 avctx->pkt_timebase, ms);
2752 for (i = 0; i < sub->num_rects; i++) {
2753 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2754 av_log(avctx, AV_LOG_ERROR,
2755 "Invalid UTF-8 in decoded subtitles text; "
2756 "maybe missing -sub_charenc option\n");
2757 avsubtitle_free(sub);
2758 return AVERROR_INVALIDDATA;
2762 if (tmp.data != pkt_recoded.data) { // did we recode?
2763 /* prevent from destroying side data from original packet */
2764 pkt_recoded.side_data = NULL;
2765 pkt_recoded.side_data_elems = 0;
2767 av_free_packet(&pkt_recoded);
2769 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2771 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2773 avctx->internal->pkt = NULL;
2777 av_packet_free_side_data(&tmp);
2783 avctx->frame_number++;
2789 void avsubtitle_free(AVSubtitle *sub)
2793 for (i = 0; i < sub->num_rects; i++) {
2794 av_freep(&sub->rects[i]->pict.data[0]);
2795 av_freep(&sub->rects[i]->pict.data[1]);
2796 av_freep(&sub->rects[i]->pict.data[2]);
2797 av_freep(&sub->rects[i]->pict.data[3]);
2798 av_freep(&sub->rects[i]->text);
2799 av_freep(&sub->rects[i]->ass);
2800 av_freep(&sub->rects[i]);
2803 av_freep(&sub->rects);
2805 memset(sub, 0, sizeof(AVSubtitle));
2808 av_cold int avcodec_close(AVCodecContext *avctx)
2813 if (avcodec_is_open(avctx)) {
2814 FramePool *pool = avctx->internal->pool;
2816 if (CONFIG_FRAME_THREAD_ENCODER &&
2817 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2818 ff_frame_thread_encoder_free(avctx);
2820 if (HAVE_THREADS && avctx->internal->thread_ctx)
2821 ff_thread_free(avctx);
2822 if (avctx->codec && avctx->codec->close)
2823 avctx->codec->close(avctx);
2824 avctx->coded_frame = NULL;
2825 avctx->internal->byte_buffer_size = 0;
2826 av_freep(&avctx->internal->byte_buffer);
2827 av_frame_free(&avctx->internal->to_free);
2828 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2829 av_buffer_pool_uninit(&pool->pools[i]);
2830 av_freep(&avctx->internal->pool);
2832 if (avctx->hwaccel && avctx->hwaccel->uninit)
2833 avctx->hwaccel->uninit(avctx);
2834 av_freep(&avctx->internal->hwaccel_priv_data);
2836 av_freep(&avctx->internal);
2839 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2840 av_opt_free(avctx->priv_data);
2842 av_freep(&avctx->priv_data);
2843 if (av_codec_is_encoder(avctx->codec))
2844 av_freep(&avctx->extradata);
2845 avctx->codec = NULL;
2846 avctx->active_thread_type = 0;
2851 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2854 //This is for future deprecatec codec ids, its empty since
2855 //last major bump but will fill up again over time, please don't remove it
2856 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2857 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2858 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2859 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2860 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2861 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2862 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2863 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2864 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2865 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2866 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2867 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2868 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2869 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2870 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2871 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2872 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2873 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2874 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2875 default : return id;
2879 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2881 AVCodec *p, *experimental = NULL;
2883 id= remap_deprecated_codec_id(id);
2885 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2887 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
2894 return experimental;
2897 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2899 return find_encdec(id, 1);
2902 AVCodec *avcodec_find_encoder_by_name(const char *name)
2909 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2916 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2918 return find_encdec(id, 0);
2921 AVCodec *avcodec_find_decoder_by_name(const char *name)
2928 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2935 const char *avcodec_get_name(enum AVCodecID id)
2937 const AVCodecDescriptor *cd;
2940 if (id == AV_CODEC_ID_NONE)
2942 cd = avcodec_descriptor_get(id);
2945 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2946 codec = avcodec_find_decoder(id);
2949 codec = avcodec_find_encoder(id);
2952 return "unknown_codec";
2955 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
2957 int i, len, ret = 0;
2959 #define TAG_PRINT(x) \
2960 (((x) >= '0' && (x) <= '9') || \
2961 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
2962 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
2964 for (i = 0; i < 4; i++) {
2965 len = snprintf(buf, buf_size,
2966 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
2968 buf_size = buf_size > len ? buf_size - len : 0;
2975 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
2977 const char *codec_type;
2978 const char *codec_name;
2979 const char *profile = NULL;
2983 AVRational display_aspect_ratio;
2984 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
2986 if (!buf || buf_size <= 0)
2988 codec_type = av_get_media_type_string(enc->codec_type);
2989 codec_name = avcodec_get_name(enc->codec_id);
2990 if (enc->profile != FF_PROFILE_UNKNOWN) {
2994 p = encode ? avcodec_find_encoder(enc->codec_id) :
2995 avcodec_find_decoder(enc->codec_id);
2997 profile = av_get_profile_name(p, enc->profile);
3000 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3002 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3004 if (enc->codec && strcmp(enc->codec->name, codec_name))
3005 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3008 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3010 if (enc->codec_tag) {
3012 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3013 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3014 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3017 switch (enc->codec_type) {
3018 case AVMEDIA_TYPE_VIDEO:
3020 char detail[256] = "(";
3022 av_strlcat(buf, separator, buf_size);
3024 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3025 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3026 av_get_pix_fmt_name(enc->pix_fmt));
3027 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3028 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
3029 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3030 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
3031 av_strlcatf(detail, sizeof(detail), "%s, ",
3032 av_color_range_name(enc->color_range));
3034 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3035 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
3036 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3037 if (enc->colorspace != (int)enc->color_primaries ||
3038 enc->colorspace != (int)enc->color_trc) {
3040 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3041 av_color_space_name(enc->colorspace),
3042 av_color_primaries_name(enc->color_primaries),
3043 av_color_transfer_name(enc->color_trc));
3045 av_strlcatf(detail, sizeof(detail), "%s, ",
3046 av_get_colorspace_name(enc->colorspace));
3049 if (av_log_get_level() >= AV_LOG_DEBUG &&
3050 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
3051 av_strlcatf(detail, sizeof(detail), "%s, ",
3052 av_chroma_location_name(enc->chroma_sample_location));
3054 if (strlen(detail) > 1) {
3055 detail[strlen(detail) - 2] = 0;
3056 av_strlcatf(buf, buf_size, "%s)", detail);
3061 av_strlcat(buf, new_line ? separator : ", ", buf_size);
3063 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3065 enc->width, enc->height);
3067 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3068 (enc->width != enc->coded_width ||
3069 enc->height != enc->coded_height))
3070 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3071 " (%dx%d)", enc->coded_width, enc->coded_height);
3073 if (enc->sample_aspect_ratio.num) {
3074 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3075 enc->width * enc->sample_aspect_ratio.num,
3076 enc->height * enc->sample_aspect_ratio.den,
3078 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3079 " [SAR %d:%d DAR %d:%d]",
3080 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
3081 display_aspect_ratio.num, display_aspect_ratio.den);
3083 if (av_log_get_level() >= AV_LOG_DEBUG) {
3084 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3085 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3087 enc->time_base.num / g, enc->time_base.den / g);
3091 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3092 ", q=%d-%d", enc->qmin, enc->qmax);
3095 case AVMEDIA_TYPE_AUDIO:
3096 av_strlcat(buf, separator, buf_size);
3098 if (enc->sample_rate) {
3099 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3100 "%d Hz, ", enc->sample_rate);
3102 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3103 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3104 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3105 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3107 if ( enc->bits_per_raw_sample > 0
3108 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
3109 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3110 " (%d bit)", enc->bits_per_raw_sample);
3112 case AVMEDIA_TYPE_DATA:
3113 if (av_log_get_level() >= AV_LOG_DEBUG) {
3114 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3116 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3118 enc->time_base.num / g, enc->time_base.den / g);
3121 case AVMEDIA_TYPE_SUBTITLE:
3123 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3124 ", %dx%d", enc->width, enc->height);
3130 if (enc->flags & CODEC_FLAG_PASS1)
3131 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3133 if (enc->flags & CODEC_FLAG_PASS2)
3134 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3137 bitrate = get_bit_rate(enc);
3139 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3140 ", %d kb/s", bitrate / 1000);
3141 } else if (enc->rc_max_rate > 0) {
3142 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3143 ", max. %d kb/s", enc->rc_max_rate / 1000);
3147 const char *av_get_profile_name(const AVCodec *codec, int profile)
3150 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3153 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3154 if (p->profile == profile)
3160 unsigned avcodec_version(void)
3162 // av_assert0(AV_CODEC_ID_V410==164);
3163 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3164 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3165 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3166 av_assert0(AV_CODEC_ID_SRT==94216);
3167 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3169 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
3170 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
3171 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
3172 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
3173 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
3174 return LIBAVCODEC_VERSION_INT;
3177 const char *avcodec_configuration(void)
3179 return FFMPEG_CONFIGURATION;
3182 const char *avcodec_license(void)
3184 #define LICENSE_PREFIX "libavcodec license: "
3185 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3188 void avcodec_flush_buffers(AVCodecContext *avctx)
3190 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3191 ff_thread_flush(avctx);
3192 else if (avctx->codec->flush)
3193 avctx->codec->flush(avctx);
3195 avctx->pts_correction_last_pts =
3196 avctx->pts_correction_last_dts = INT64_MIN;
3198 if (!avctx->refcounted_frames)
3199 av_frame_unref(avctx->internal->to_free);
3202 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3205 case AV_CODEC_ID_8SVX_EXP:
3206 case AV_CODEC_ID_8SVX_FIB:
3207 case AV_CODEC_ID_ADPCM_CT:
3208 case AV_CODEC_ID_ADPCM_IMA_APC:
3209 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3210 case AV_CODEC_ID_ADPCM_IMA_OKI:
3211 case AV_CODEC_ID_ADPCM_IMA_WS:
3212 case AV_CODEC_ID_ADPCM_G722:
3213 case AV_CODEC_ID_ADPCM_YAMAHA:
3215 case AV_CODEC_ID_DSD_LSBF:
3216 case AV_CODEC_ID_DSD_MSBF:
3217 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3218 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3219 case AV_CODEC_ID_PCM_ALAW:
3220 case AV_CODEC_ID_PCM_MULAW:
3221 case AV_CODEC_ID_PCM_S8:
3222 case AV_CODEC_ID_PCM_S8_PLANAR:
3223 case AV_CODEC_ID_PCM_U8:
3224 case AV_CODEC_ID_PCM_ZORK:
3226 case AV_CODEC_ID_PCM_S16BE:
3227 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3228 case AV_CODEC_ID_PCM_S16LE:
3229 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3230 case AV_CODEC_ID_PCM_U16BE:
3231 case AV_CODEC_ID_PCM_U16LE:
3233 case AV_CODEC_ID_PCM_S24DAUD:
3234 case AV_CODEC_ID_PCM_S24BE:
3235 case AV_CODEC_ID_PCM_S24LE:
3236 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3237 case AV_CODEC_ID_PCM_U24BE:
3238 case AV_CODEC_ID_PCM_U24LE:
3240 case AV_CODEC_ID_PCM_S32BE:
3241 case AV_CODEC_ID_PCM_S32LE:
3242 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3243 case AV_CODEC_ID_PCM_U32BE:
3244 case AV_CODEC_ID_PCM_U32LE:
3245 case AV_CODEC_ID_PCM_F32BE:
3246 case AV_CODEC_ID_PCM_F32LE:
3248 case AV_CODEC_ID_PCM_F64BE:
3249 case AV_CODEC_ID_PCM_F64LE:
3256 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3258 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3259 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3260 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3261 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3262 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3263 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3264 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3265 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3266 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3267 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3268 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3270 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3271 return AV_CODEC_ID_NONE;
3272 if (be < 0 || be > 1)
3274 return map[fmt][be];
3277 int av_get_bits_per_sample(enum AVCodecID codec_id)
3280 case AV_CODEC_ID_ADPCM_SBPRO_2:
3282 case AV_CODEC_ID_ADPCM_SBPRO_3:
3284 case AV_CODEC_ID_ADPCM_SBPRO_4:
3285 case AV_CODEC_ID_ADPCM_IMA_WAV:
3286 case AV_CODEC_ID_ADPCM_IMA_QT:
3287 case AV_CODEC_ID_ADPCM_SWF:
3288 case AV_CODEC_ID_ADPCM_MS:
3291 return av_get_exact_bits_per_sample(codec_id);
3295 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3297 int id, sr, ch, ba, tag, bps;
3299 id = avctx->codec_id;
3300 sr = avctx->sample_rate;
3301 ch = avctx->channels;
3302 ba = avctx->block_align;
3303 tag = avctx->codec_tag;
3304 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3306 /* codecs with an exact constant bits per sample */
3307 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3308 return (frame_bytes * 8LL) / (bps * ch);
3309 bps = avctx->bits_per_coded_sample;
3311 /* codecs with a fixed packet duration */
3313 case AV_CODEC_ID_ADPCM_ADX: return 32;
3314 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3315 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3316 case AV_CODEC_ID_AMR_NB:
3317 case AV_CODEC_ID_EVRC:
3318 case AV_CODEC_ID_GSM:
3319 case AV_CODEC_ID_QCELP:
3320 case AV_CODEC_ID_RA_288: return 160;
3321 case AV_CODEC_ID_AMR_WB:
3322 case AV_CODEC_ID_GSM_MS: return 320;
3323 case AV_CODEC_ID_MP1: return 384;
3324 case AV_CODEC_ID_ATRAC1: return 512;
3325 case AV_CODEC_ID_ATRAC3: return 1024;
3326 case AV_CODEC_ID_ATRAC3P: return 2048;
3327 case AV_CODEC_ID_MP2:
3328 case AV_CODEC_ID_MUSEPACK7: return 1152;
3329 case AV_CODEC_ID_AC3: return 1536;
3333 /* calc from sample rate */
3334 if (id == AV_CODEC_ID_TTA)
3335 return 256 * sr / 245;
3338 /* calc from sample rate and channels */
3339 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3340 return (480 << (sr / 22050)) / ch;
3345 /* calc from block_align */
3346 if (id == AV_CODEC_ID_SIPR) {
3348 case 20: return 160;
3349 case 19: return 144;
3350 case 29: return 288;
3351 case 37: return 480;
3353 } else if (id == AV_CODEC_ID_ILBC) {
3355 case 38: return 160;
3356 case 50: return 240;
3361 if (frame_bytes > 0) {
3362 /* calc from frame_bytes only */
3363 if (id == AV_CODEC_ID_TRUESPEECH)
3364 return 240 * (frame_bytes / 32);
3365 if (id == AV_CODEC_ID_NELLYMOSER)
3366 return 256 * (frame_bytes / 64);
3367 if (id == AV_CODEC_ID_RA_144)
3368 return 160 * (frame_bytes / 20);
3369 if (id == AV_CODEC_ID_G723_1)
3370 return 240 * (frame_bytes / 24);
3373 /* calc from frame_bytes and bits_per_coded_sample */
3374 if (id == AV_CODEC_ID_ADPCM_G726)
3375 return frame_bytes * 8 / bps;
3379 /* calc from frame_bytes and channels */
3381 case AV_CODEC_ID_ADPCM_AFC:
3382 return frame_bytes / (9 * ch) * 16;
3383 case AV_CODEC_ID_ADPCM_DTK:
3384 return frame_bytes / (16 * ch) * 28;
3385 case AV_CODEC_ID_ADPCM_4XM:
3386 case AV_CODEC_ID_ADPCM_IMA_ISS:
3387 return (frame_bytes - 4 * ch) * 2 / ch;
3388 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3389 return (frame_bytes - 4) * 2 / ch;
3390 case AV_CODEC_ID_ADPCM_IMA_AMV:
3391 return (frame_bytes - 8) * 2 / ch;
3392 case AV_CODEC_ID_ADPCM_XA:
3393 return (frame_bytes / 128) * 224 / ch;
3394 case AV_CODEC_ID_INTERPLAY_DPCM:
3395 return (frame_bytes - 6 - ch) / ch;
3396 case AV_CODEC_ID_ROQ_DPCM:
3397 return (frame_bytes - 8) / ch;
3398 case AV_CODEC_ID_XAN_DPCM:
3399 return (frame_bytes - 2 * ch) / ch;
3400 case AV_CODEC_ID_MACE3:
3401 return 3 * frame_bytes / ch;
3402 case AV_CODEC_ID_MACE6:
3403 return 6 * frame_bytes / ch;
3404 case AV_CODEC_ID_PCM_LXF:
3405 return 2 * (frame_bytes / (5 * ch));
3406 case AV_CODEC_ID_IAC:
3407 case AV_CODEC_ID_IMC:
3408 return 4 * frame_bytes / ch;
3412 /* calc from frame_bytes, channels, and codec_tag */
3413 if (id == AV_CODEC_ID_SOL_DPCM) {
3415 return frame_bytes / ch;
3417 return frame_bytes * 2 / ch;
3422 /* calc from frame_bytes, channels, and block_align */
3423 int blocks = frame_bytes / ba;
3424 switch (avctx->codec_id) {
3425 case AV_CODEC_ID_ADPCM_IMA_WAV:
3426 if (bps < 2 || bps > 5)
3428 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3429 case AV_CODEC_ID_ADPCM_IMA_DK3:
3430 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3431 case AV_CODEC_ID_ADPCM_IMA_DK4:
3432 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3433 case AV_CODEC_ID_ADPCM_IMA_RAD:
3434 return blocks * ((ba - 4 * ch) * 2 / ch);
3435 case AV_CODEC_ID_ADPCM_MS:
3436 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3441 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3442 switch (avctx->codec_id) {
3443 case AV_CODEC_ID_PCM_DVD:
3446 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3447 case AV_CODEC_ID_PCM_BLURAY:
3450 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3451 case AV_CODEC_ID_S302M:
3452 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3458 /* Fall back on using frame_size */
3459 if (avctx->frame_size > 1 && frame_bytes)
3460 return avctx->frame_size;
3462 //For WMA we currently have no other means to calculate duration thus we
3463 //do it here by assuming CBR, which is true for all known cases.
3464 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3465 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3466 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3473 int ff_thread_init(AVCodecContext *s)
3480 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3494 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3497 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3501 #if FF_API_MISSING_SAMPLE
3502 FF_DISABLE_DEPRECATION_WARNINGS
3503 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3505 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3506 "version to the newest one from Git. If the problem still "
3507 "occurs, it means that your file has a feature which has not "
3508 "been implemented.\n", feature);
3510 av_log_ask_for_sample(avc, NULL);
3513 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3515 va_list argument_list;
3517 va_start(argument_list, msg);
3520 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3521 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3522 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3523 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3525 va_end(argument_list);
3527 FF_ENABLE_DEPRECATION_WARNINGS
3528 #endif /* FF_API_MISSING_SAMPLE */
3530 static AVHWAccel *first_hwaccel = NULL;
3531 static AVHWAccel **last_hwaccel = &first_hwaccel;
3533 void av_register_hwaccel(AVHWAccel *hwaccel)
3535 AVHWAccel **p = last_hwaccel;
3536 hwaccel->next = NULL;
3537 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3539 last_hwaccel = &hwaccel->next;
3542 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3544 return hwaccel ? hwaccel->next : first_hwaccel;
3547 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3550 // There is no good way to rollback a failure to destroy the
3551 // mutex, so we ignore failures.
3552 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3553 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3556 avformat_mutex = NULL;
3560 void *new_codec_mutex = NULL;
3561 void *new_avformat_mutex = NULL;
3563 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3564 return err > 0 ? AVERROR_UNKNOWN : err;
3566 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3567 // Ignore failures to destroy the newly created mutex.
3568 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3569 return err > 0 ? AVERROR_UNKNOWN : err;
3572 codec_mutex = new_codec_mutex;
3573 avformat_mutex = new_avformat_mutex;
3579 int ff_lock_avcodec(AVCodecContext *log_ctx)
3582 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3585 entangled_thread_counter++;
3586 if (entangled_thread_counter != 1) {
3587 av_log(log_ctx, AV_LOG_ERROR, "Insufficient thread locking around avcodec_open/close()\n");
3589 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3590 ff_avcodec_locked = 1;
3591 ff_unlock_avcodec();
3592 return AVERROR(EINVAL);
3594 av_assert0(!ff_avcodec_locked);
3595 ff_avcodec_locked = 1;
3599 int ff_unlock_avcodec(void)
3601 av_assert0(ff_avcodec_locked);
3602 ff_avcodec_locked = 0;
3603 entangled_thread_counter--;
3605 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3612 int avpriv_lock_avformat(void)
3615 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3621 int avpriv_unlock_avformat(void)
3624 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3630 unsigned int avpriv_toupper4(unsigned int x)
3632 return av_toupper(x & 0xFF) +
3633 (av_toupper((x >> 8) & 0xFF) << 8) +
3634 (av_toupper((x >> 16) & 0xFF) << 16) +
3635 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3638 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3642 dst->owner = src->owner;
3644 ret = av_frame_ref(dst->f, src->f);
3648 if (src->progress &&
3649 !(dst->progress = av_buffer_ref(src->progress))) {
3650 ff_thread_release_buffer(dst->owner, dst);
3651 return AVERROR(ENOMEM);
3659 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3661 return ff_get_format(avctx, fmt);
3664 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3667 return ff_get_buffer(avctx, f->f, flags);
3670 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3673 av_frame_unref(f->f);
3676 void ff_thread_finish_setup(AVCodecContext *avctx)
3680 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3684 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3688 int ff_thread_can_start_frame(AVCodecContext *avctx)
3693 int ff_alloc_entries(AVCodecContext *avctx, int count)
3698 void ff_reset_entries(AVCodecContext *avctx)
3702 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3706 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3712 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3714 AVCodec *c= avcodec_find_decoder(codec_id);
3716 c= avcodec_find_encoder(codec_id);
3720 if (codec_id <= AV_CODEC_ID_NONE)
3721 return AVMEDIA_TYPE_UNKNOWN;
3722 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3723 return AVMEDIA_TYPE_VIDEO;
3724 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3725 return AVMEDIA_TYPE_AUDIO;
3726 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3727 return AVMEDIA_TYPE_SUBTITLE;
3729 return AVMEDIA_TYPE_UNKNOWN;
3732 int avcodec_is_open(AVCodecContext *s)
3734 return !!s->internal;
3737 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3742 ret = av_bprint_finalize(buf, &str);
3745 if (!av_bprint_is_complete(buf)) {
3747 return AVERROR(ENOMEM);
3750 avctx->extradata = str;
3751 /* Note: the string is NUL terminated (so extradata can be read as a
3752 * string), but the ending character is not accounted in the size (in
3753 * binary formats you are likely not supposed to mux that character). When
3754 * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE
3756 avctx->extradata_size = buf->len;
3760 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3762 uint32_t *av_restrict state)
3766 av_assert0(p <= end);
3770 for (i = 0; i < 3; i++) {
3771 uint32_t tmp = *state << 8;
3772 *state = tmp + *(p++);
3773 if (tmp == 0x100 || p == end)
3778 if (p[-1] > 1 ) p += 3;
3779 else if (p[-2] ) p += 2;
3780 else if (p[-3]|(p[-1]-1)) p++;
3787 p = FFMIN(p, end) - 4;
3788 *state = AV_RB32(p);