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 #if CONFIG_RAISE_MAJOR
123 # define LIBNAME "LIBAVCODEC_155"
125 # define LIBNAME "LIBAVCODEC_55"
128 #if FF_API_FAST_MALLOC && CONFIG_SHARED && HAVE_SYMVER
129 FF_SYMVER(void*, av_fast_realloc, (void *ptr, unsigned int *size, size_t min_size), LIBNAME)
131 return av_fast_realloc(ptr, size, min_size);
134 FF_SYMVER(void, av_fast_malloc, (void *ptr, unsigned int *size, size_t min_size), LIBNAME)
136 av_fast_malloc(ptr, size, min_size);
140 static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
143 if (min_size < *size)
145 min_size = FFMAX(17 * min_size / 16 + 32, min_size);
147 *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
154 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
157 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
162 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
163 memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
166 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
169 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
174 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
175 memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
178 /* encoder management */
179 static AVCodec *first_avcodec = NULL;
180 static AVCodec **last_avcodec = &first_avcodec;
182 AVCodec *av_codec_next(const AVCodec *c)
187 return first_avcodec;
190 static av_cold void avcodec_init(void)
192 static int initialized = 0;
194 if (initialized != 0)
199 ff_me_cmp_init_static();
202 int av_codec_is_encoder(const AVCodec *codec)
204 return codec && (codec->encode_sub || codec->encode2);
207 int av_codec_is_decoder(const AVCodec *codec)
209 return codec && codec->decode;
212 av_cold void avcodec_register(AVCodec *codec)
219 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
221 last_avcodec = &codec->next;
223 if (codec->init_static_data)
224 codec->init_static_data(codec);
228 unsigned avcodec_get_edge_width(void)
234 #if FF_API_SET_DIMENSIONS
235 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
237 int ret = ff_set_dimensions(s, width, height);
239 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
244 int ff_set_dimensions(AVCodecContext *s, int width, int height)
246 int ret = av_image_check_size(width, height, 0, s);
251 s->coded_width = width;
252 s->coded_height = height;
253 s->width = FF_CEIL_RSHIFT(width, s->lowres);
254 s->height = FF_CEIL_RSHIFT(height, s->lowres);
259 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
261 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
264 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
266 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
269 avctx->sample_aspect_ratio = sar;
274 int ff_side_data_update_matrix_encoding(AVFrame *frame,
275 enum AVMatrixEncoding matrix_encoding)
277 AVFrameSideData *side_data;
278 enum AVMatrixEncoding *data;
280 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
282 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
283 sizeof(enum AVMatrixEncoding));
286 return AVERROR(ENOMEM);
288 data = (enum AVMatrixEncoding*)side_data->data;
289 *data = matrix_encoding;
294 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
295 int linesize_align[AV_NUM_DATA_POINTERS])
301 switch (s->pix_fmt) {
302 case AV_PIX_FMT_YUV420P:
303 case AV_PIX_FMT_YUYV422:
304 case AV_PIX_FMT_YVYU422:
305 case AV_PIX_FMT_UYVY422:
306 case AV_PIX_FMT_YUV422P:
307 case AV_PIX_FMT_YUV440P:
308 case AV_PIX_FMT_YUV444P:
309 case AV_PIX_FMT_GBRAP:
310 case AV_PIX_FMT_GBRP:
311 case AV_PIX_FMT_GRAY8:
312 case AV_PIX_FMT_GRAY16BE:
313 case AV_PIX_FMT_GRAY16LE:
314 case AV_PIX_FMT_YUVJ420P:
315 case AV_PIX_FMT_YUVJ422P:
316 case AV_PIX_FMT_YUVJ440P:
317 case AV_PIX_FMT_YUVJ444P:
318 case AV_PIX_FMT_YUVA420P:
319 case AV_PIX_FMT_YUVA422P:
320 case AV_PIX_FMT_YUVA444P:
321 case AV_PIX_FMT_YUV420P9LE:
322 case AV_PIX_FMT_YUV420P9BE:
323 case AV_PIX_FMT_YUV420P10LE:
324 case AV_PIX_FMT_YUV420P10BE:
325 case AV_PIX_FMT_YUV420P12LE:
326 case AV_PIX_FMT_YUV420P12BE:
327 case AV_PIX_FMT_YUV420P14LE:
328 case AV_PIX_FMT_YUV420P14BE:
329 case AV_PIX_FMT_YUV420P16LE:
330 case AV_PIX_FMT_YUV420P16BE:
331 case AV_PIX_FMT_YUVA420P9LE:
332 case AV_PIX_FMT_YUVA420P9BE:
333 case AV_PIX_FMT_YUVA420P10LE:
334 case AV_PIX_FMT_YUVA420P10BE:
335 case AV_PIX_FMT_YUVA420P16LE:
336 case AV_PIX_FMT_YUVA420P16BE:
337 case AV_PIX_FMT_YUV422P9LE:
338 case AV_PIX_FMT_YUV422P9BE:
339 case AV_PIX_FMT_YUV422P10LE:
340 case AV_PIX_FMT_YUV422P10BE:
341 case AV_PIX_FMT_YUV422P12LE:
342 case AV_PIX_FMT_YUV422P12BE:
343 case AV_PIX_FMT_YUV422P14LE:
344 case AV_PIX_FMT_YUV422P14BE:
345 case AV_PIX_FMT_YUV422P16LE:
346 case AV_PIX_FMT_YUV422P16BE:
347 case AV_PIX_FMT_YUVA422P9LE:
348 case AV_PIX_FMT_YUVA422P9BE:
349 case AV_PIX_FMT_YUVA422P10LE:
350 case AV_PIX_FMT_YUVA422P10BE:
351 case AV_PIX_FMT_YUVA422P16LE:
352 case AV_PIX_FMT_YUVA422P16BE:
353 case AV_PIX_FMT_YUV444P9LE:
354 case AV_PIX_FMT_YUV444P9BE:
355 case AV_PIX_FMT_YUV444P10LE:
356 case AV_PIX_FMT_YUV444P10BE:
357 case AV_PIX_FMT_YUV444P12LE:
358 case AV_PIX_FMT_YUV444P12BE:
359 case AV_PIX_FMT_YUV444P14LE:
360 case AV_PIX_FMT_YUV444P14BE:
361 case AV_PIX_FMT_YUV444P16LE:
362 case AV_PIX_FMT_YUV444P16BE:
363 case AV_PIX_FMT_YUVA444P9LE:
364 case AV_PIX_FMT_YUVA444P9BE:
365 case AV_PIX_FMT_YUVA444P10LE:
366 case AV_PIX_FMT_YUVA444P10BE:
367 case AV_PIX_FMT_YUVA444P16LE:
368 case AV_PIX_FMT_YUVA444P16BE:
369 case AV_PIX_FMT_GBRP9LE:
370 case AV_PIX_FMT_GBRP9BE:
371 case AV_PIX_FMT_GBRP10LE:
372 case AV_PIX_FMT_GBRP10BE:
373 case AV_PIX_FMT_GBRP12LE:
374 case AV_PIX_FMT_GBRP12BE:
375 case AV_PIX_FMT_GBRP14LE:
376 case AV_PIX_FMT_GBRP14BE:
377 w_align = 16; //FIXME assume 16 pixel per macroblock
378 h_align = 16 * 2; // interlaced needs 2 macroblocks height
380 case AV_PIX_FMT_YUV411P:
381 case AV_PIX_FMT_YUVJ411P:
382 case AV_PIX_FMT_UYYVYY411:
386 case AV_PIX_FMT_YUV410P:
387 if (s->codec_id == AV_CODEC_ID_SVQ1) {
392 case AV_PIX_FMT_RGB555:
393 if (s->codec_id == AV_CODEC_ID_RPZA) {
398 case AV_PIX_FMT_PAL8:
399 case AV_PIX_FMT_BGR8:
400 case AV_PIX_FMT_RGB8:
401 if (s->codec_id == AV_CODEC_ID_SMC ||
402 s->codec_id == AV_CODEC_ID_CINEPAK) {
407 case AV_PIX_FMT_BGR24:
408 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
409 (s->codec_id == AV_CODEC_ID_ZLIB)) {
414 case AV_PIX_FMT_RGB24:
415 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
426 if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) {
427 w_align = FFMAX(w_align, 8);
430 *width = FFALIGN(*width, w_align);
431 *height = FFALIGN(*height, h_align);
432 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres)
433 // some of the optimized chroma MC reads one line too much
434 // which is also done in mpeg decoders with lowres > 0
437 for (i = 0; i < 4; i++)
438 linesize_align[i] = STRIDE_ALIGN;
441 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
443 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
444 int chroma_shift = desc->log2_chroma_w;
445 int linesize_align[AV_NUM_DATA_POINTERS];
448 avcodec_align_dimensions2(s, width, height, linesize_align);
449 align = FFMAX(linesize_align[0], linesize_align[3]);
450 linesize_align[1] <<= chroma_shift;
451 linesize_align[2] <<= chroma_shift;
452 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
453 *width = FFALIGN(*width, align);
456 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
458 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
459 return AVERROR(EINVAL);
462 *xpos = (pos&1) * 128;
463 *ypos = ((pos>>1)^(pos<4)) * 128;
468 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
472 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
473 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
476 return AVCHROMA_LOC_UNSPECIFIED;
479 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
480 enum AVSampleFormat sample_fmt, const uint8_t *buf,
481 int buf_size, int align)
483 int ch, planar, needed_size, ret = 0;
485 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
486 frame->nb_samples, sample_fmt,
488 if (buf_size < needed_size)
489 return AVERROR(EINVAL);
491 planar = av_sample_fmt_is_planar(sample_fmt);
492 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
493 if (!(frame->extended_data = av_mallocz_array(nb_channels,
494 sizeof(*frame->extended_data))))
495 return AVERROR(ENOMEM);
497 frame->extended_data = frame->data;
500 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
501 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
502 sample_fmt, align)) < 0) {
503 if (frame->extended_data != frame->data)
504 av_freep(&frame->extended_data);
507 if (frame->extended_data != frame->data) {
508 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
509 frame->data[ch] = frame->extended_data[ch];
515 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
517 FramePool *pool = avctx->internal->pool;
520 switch (avctx->codec_type) {
521 case AVMEDIA_TYPE_VIDEO: {
524 int w = frame->width;
525 int h = frame->height;
526 int tmpsize, unaligned;
528 if (pool->format == frame->format &&
529 pool->width == frame->width && pool->height == frame->height)
532 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
535 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
536 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
537 av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w);
538 // increase alignment of w for next try (rhs gives the lowest bit set in w)
542 for (i = 0; i < 4; i++)
543 unaligned |= picture.linesize[i] % pool->stride_align[i];
546 tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h,
547 NULL, picture.linesize);
551 for (i = 0; i < 3 && picture.data[i + 1]; i++)
552 size[i] = picture.data[i + 1] - picture.data[i];
553 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
555 for (i = 0; i < 4; i++) {
556 av_buffer_pool_uninit(&pool->pools[i]);
557 pool->linesize[i] = picture.linesize[i];
559 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
560 CONFIG_MEMORY_POISONING ?
563 if (!pool->pools[i]) {
564 ret = AVERROR(ENOMEM);
569 pool->format = frame->format;
570 pool->width = frame->width;
571 pool->height = frame->height;
575 case AVMEDIA_TYPE_AUDIO: {
576 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
577 int planar = av_sample_fmt_is_planar(frame->format);
578 int planes = planar ? ch : 1;
580 if (pool->format == frame->format && pool->planes == planes &&
581 pool->channels == ch && frame->nb_samples == pool->samples)
584 av_buffer_pool_uninit(&pool->pools[0]);
585 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
586 frame->nb_samples, frame->format, 0);
590 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
591 if (!pool->pools[0]) {
592 ret = AVERROR(ENOMEM);
596 pool->format = frame->format;
597 pool->planes = planes;
599 pool->samples = frame->nb_samples;
602 default: av_assert0(0);
606 for (i = 0; i < 4; i++)
607 av_buffer_pool_uninit(&pool->pools[i]);
609 pool->planes = pool->channels = pool->samples = 0;
610 pool->width = pool->height = 0;
614 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
616 FramePool *pool = avctx->internal->pool;
617 int planes = pool->planes;
620 frame->linesize[0] = pool->linesize[0];
622 if (planes > AV_NUM_DATA_POINTERS) {
623 frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
624 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
625 frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
626 sizeof(*frame->extended_buf));
627 if (!frame->extended_data || !frame->extended_buf) {
628 av_freep(&frame->extended_data);
629 av_freep(&frame->extended_buf);
630 return AVERROR(ENOMEM);
633 frame->extended_data = frame->data;
634 av_assert0(frame->nb_extended_buf == 0);
637 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
638 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
641 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
643 for (i = 0; i < frame->nb_extended_buf; i++) {
644 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
645 if (!frame->extended_buf[i])
647 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
650 if (avctx->debug & FF_DEBUG_BUFFERS)
651 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
655 av_frame_unref(frame);
656 return AVERROR(ENOMEM);
659 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
661 FramePool *pool = s->internal->pool;
664 if (pic->data[0] != NULL) {
665 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
669 memset(pic->data, 0, sizeof(pic->data));
670 pic->extended_data = pic->data;
672 for (i = 0; i < 4 && pool->pools[i]; i++) {
673 pic->linesize[i] = pool->linesize[i];
675 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
679 pic->data[i] = pic->buf[i]->data;
681 for (; i < AV_NUM_DATA_POINTERS; i++) {
683 pic->linesize[i] = 0;
685 if (pic->data[1] && !pic->data[2])
686 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
688 if (s->debug & FF_DEBUG_BUFFERS)
689 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
694 return AVERROR(ENOMEM);
697 void avpriv_color_frame(AVFrame *frame, const int c[4])
699 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
702 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
704 for (p = 0; p<desc->nb_components; p++) {
705 uint8_t *dst = frame->data[p];
706 int is_chroma = p == 1 || p == 2;
707 int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
708 int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
709 for (y = 0; y < height; y++) {
710 if (desc->comp[0].depth_minus1 >= 8) {
711 for (x = 0; x<bytes; x++)
712 ((uint16_t*)dst)[x] = c[p];
714 memset(dst, c[p], bytes);
715 dst += frame->linesize[p];
720 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
724 if ((ret = update_frame_pool(avctx, frame)) < 0)
727 #if FF_API_GET_BUFFER
728 FF_DISABLE_DEPRECATION_WARNINGS
729 frame->type = FF_BUFFER_TYPE_INTERNAL;
730 FF_ENABLE_DEPRECATION_WARNINGS
733 switch (avctx->codec_type) {
734 case AVMEDIA_TYPE_VIDEO:
735 return video_get_buffer(avctx, frame);
736 case AVMEDIA_TYPE_AUDIO:
737 return audio_get_buffer(avctx, frame);
743 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
745 AVPacket *pkt = avctx->internal->pkt;
749 AVFrameSideData *frame_sd;
751 frame->pkt_pts = pkt->pts;
752 av_frame_set_pkt_pos (frame, pkt->pos);
753 av_frame_set_pkt_duration(frame, pkt->duration);
754 av_frame_set_pkt_size (frame, pkt->size);
756 /* copy the replaygain data to the output frame */
757 packet_sd = av_packet_get_side_data(pkt, AV_PKT_DATA_REPLAYGAIN, &size);
759 frame_sd = av_frame_new_side_data(frame, AV_FRAME_DATA_REPLAYGAIN, size);
761 return AVERROR(ENOMEM);
763 memcpy(frame_sd->data, packet_sd, size);
766 /* copy the displaymatrix to the output frame */
767 packet_sd = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size);
769 frame_sd = av_frame_new_side_data(frame, AV_FRAME_DATA_DISPLAYMATRIX, size);
771 return AVERROR(ENOMEM);
773 memcpy(frame_sd->data, packet_sd, size);
776 frame->pkt_pts = AV_NOPTS_VALUE;
777 av_frame_set_pkt_pos (frame, -1);
778 av_frame_set_pkt_duration(frame, 0);
779 av_frame_set_pkt_size (frame, -1);
781 frame->reordered_opaque = avctx->reordered_opaque;
783 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
784 frame->color_primaries = avctx->color_primaries;
785 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
786 frame->color_trc = avctx->color_trc;
787 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
788 av_frame_set_colorspace(frame, avctx->colorspace);
789 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
790 av_frame_set_color_range(frame, avctx->color_range);
791 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
792 frame->chroma_location = avctx->chroma_sample_location;
794 switch (avctx->codec->type) {
795 case AVMEDIA_TYPE_VIDEO:
796 frame->format = avctx->pix_fmt;
797 if (!frame->sample_aspect_ratio.num)
798 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
800 if (frame->width && frame->height &&
801 av_image_check_sar(frame->width, frame->height,
802 frame->sample_aspect_ratio) < 0) {
803 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
804 frame->sample_aspect_ratio.num,
805 frame->sample_aspect_ratio.den);
806 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
810 case AVMEDIA_TYPE_AUDIO:
811 if (!frame->sample_rate)
812 frame->sample_rate = avctx->sample_rate;
813 if (frame->format < 0)
814 frame->format = avctx->sample_fmt;
815 if (!frame->channel_layout) {
816 if (avctx->channel_layout) {
817 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
819 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
821 return AVERROR(EINVAL);
824 frame->channel_layout = avctx->channel_layout;
826 if (avctx->channels > FF_SANE_NB_CHANNELS) {
827 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
829 return AVERROR(ENOSYS);
833 av_frame_set_channels(frame, avctx->channels);
839 #if FF_API_GET_BUFFER
840 FF_DISABLE_DEPRECATION_WARNINGS
841 int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
843 return avcodec_default_get_buffer2(avctx, frame, 0);
846 typedef struct CompatReleaseBufPriv {
847 AVCodecContext avctx;
849 uint8_t avframe_padding[1024]; // hack to allow linking to a avutil with larger AVFrame
850 } CompatReleaseBufPriv;
852 static void compat_free_buffer(void *opaque, uint8_t *data)
854 CompatReleaseBufPriv *priv = opaque;
855 if (priv->avctx.release_buffer)
856 priv->avctx.release_buffer(&priv->avctx, &priv->frame);
860 static void compat_release_buffer(void *opaque, uint8_t *data)
862 AVBufferRef *buf = opaque;
863 av_buffer_unref(&buf);
865 FF_ENABLE_DEPRECATION_WARNINGS
868 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
870 return ff_init_buffer_info(avctx, frame);
873 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
875 const AVHWAccel *hwaccel = avctx->hwaccel;
876 int override_dimensions = 1;
879 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
880 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
881 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
882 return AVERROR(EINVAL);
885 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
886 if (frame->width <= 0 || frame->height <= 0) {
887 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
888 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
889 override_dimensions = 0;
892 ret = ff_decode_frame_props(avctx, frame);
895 if ((ret = ff_init_buffer_info(avctx, frame)) < 0)
898 if (hwaccel && hwaccel->alloc_frame) {
899 ret = hwaccel->alloc_frame(avctx, frame);
903 #if FF_API_GET_BUFFER
904 FF_DISABLE_DEPRECATION_WARNINGS
906 * Wrap an old get_buffer()-allocated buffer in a bunch of AVBuffers.
907 * We wrap each plane in its own AVBuffer. Each of those has a reference to
908 * a dummy AVBuffer as its private data, unreffing it on free.
909 * When all the planes are freed, the dummy buffer's free callback calls
912 if (avctx->get_buffer) {
913 CompatReleaseBufPriv *priv = NULL;
914 AVBufferRef *dummy_buf = NULL;
917 if (flags & AV_GET_BUFFER_FLAG_REF)
918 frame->reference = 1;
920 ret = avctx->get_buffer(avctx, frame);
924 /* return if the buffers are already set up
925 * this would happen e.g. when a custom get_buffer() calls
926 * avcodec_default_get_buffer
931 priv = av_mallocz(sizeof(*priv));
933 ret = AVERROR(ENOMEM);
936 priv->avctx = *avctx;
937 priv->frame = *frame;
939 dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0);
941 ret = AVERROR(ENOMEM);
945 #define WRAP_PLANE(ref_out, data, data_size) \
947 AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \
949 ret = AVERROR(ENOMEM); \
952 ref_out = av_buffer_create(data, data_size, compat_release_buffer, \
955 av_frame_unref(frame); \
956 ret = AVERROR(ENOMEM); \
961 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
962 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
964 planes = av_pix_fmt_count_planes(frame->format);
965 /* workaround for AVHWAccel plane count of 0, buf[0] is used as
966 check for allocated buffers: make libavcodec happy */
967 if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
969 if (!desc || planes <= 0) {
970 ret = AVERROR(EINVAL);
974 for (i = 0; i < planes; i++) {
975 int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
976 int plane_size = (frame->height >> v_shift) * frame->linesize[i];
978 WRAP_PLANE(frame->buf[i], frame->data[i], plane_size);
981 int planar = av_sample_fmt_is_planar(frame->format);
982 planes = planar ? avctx->channels : 1;
984 if (planes > FF_ARRAY_ELEMS(frame->buf)) {
985 frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf);
986 frame->extended_buf = av_malloc_array(sizeof(*frame->extended_buf),
987 frame->nb_extended_buf);
988 if (!frame->extended_buf) {
989 ret = AVERROR(ENOMEM);
994 for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++)
995 WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]);
997 for (i = 0; i < frame->nb_extended_buf; i++)
998 WRAP_PLANE(frame->extended_buf[i],
999 frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)],
1000 frame->linesize[0]);
1003 av_buffer_unref(&dummy_buf);
1006 frame->width = avctx->width;
1007 frame->height = avctx->height;
1012 avctx->release_buffer(avctx, frame);
1014 av_buffer_unref(&dummy_buf);
1017 FF_ENABLE_DEPRECATION_WARNINGS
1020 ret = avctx->get_buffer2(avctx, frame, flags);
1023 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
1024 frame->width = avctx->width;
1025 frame->height = avctx->height;
1031 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1033 int ret = get_buffer_internal(avctx, frame, flags);
1035 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1039 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
1044 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
1046 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
1047 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
1048 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
1049 av_frame_unref(frame);
1052 ff_init_buffer_info(avctx, frame);
1054 if (!frame->data[0])
1055 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1057 if (av_frame_is_writable(frame))
1058 return ff_decode_frame_props(avctx, frame);
1060 tmp = av_frame_alloc();
1062 return AVERROR(ENOMEM);
1064 av_frame_move_ref(tmp, frame);
1066 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1068 av_frame_free(&tmp);
1072 av_frame_copy(frame, tmp);
1073 av_frame_free(&tmp);
1078 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
1080 int ret = reget_buffer_internal(avctx, frame);
1082 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1086 #if FF_API_GET_BUFFER
1087 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
1089 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
1091 av_frame_unref(pic);
1094 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
1101 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
1105 for (i = 0; i < count; i++) {
1106 int r = func(c, (char *)arg + i * size);
1113 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
1117 for (i = 0; i < count; i++) {
1118 int r = func(c, arg, i, 0);
1125 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
1126 unsigned int fourcc)
1128 while (tags->pix_fmt >= 0) {
1129 if (tags->fourcc == fourcc)
1130 return tags->pix_fmt;
1133 return AV_PIX_FMT_NONE;
1136 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
1138 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1139 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1142 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
1144 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1149 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
1150 enum AVPixelFormat pix_fmt)
1152 AVHWAccel *hwaccel = NULL;
1154 while ((hwaccel = av_hwaccel_next(hwaccel)))
1155 if (hwaccel->id == codec_id
1156 && hwaccel->pix_fmt == pix_fmt)
1162 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1164 const AVPixFmtDescriptor *desc;
1165 enum AVPixelFormat ret = avctx->get_format(avctx, fmt);
1167 desc = av_pix_fmt_desc_get(ret);
1169 return AV_PIX_FMT_NONE;
1171 if (avctx->hwaccel && avctx->hwaccel->uninit)
1172 avctx->hwaccel->uninit(avctx);
1173 av_freep(&avctx->internal->hwaccel_priv_data);
1174 avctx->hwaccel = NULL;
1176 if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL &&
1177 !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1181 hwaccel = find_hwaccel(avctx->codec_id, ret);
1183 av_log(avctx, AV_LOG_ERROR,
1184 "Could not find an AVHWAccel for the pixel format: %s",
1186 return AV_PIX_FMT_NONE;
1189 if (hwaccel->priv_data_size) {
1190 avctx->internal->hwaccel_priv_data = av_mallocz(hwaccel->priv_data_size);
1191 if (!avctx->internal->hwaccel_priv_data)
1192 return AV_PIX_FMT_NONE;
1195 if (hwaccel->init) {
1196 err = hwaccel->init(avctx);
1198 av_freep(&avctx->internal->hwaccel_priv_data);
1199 return AV_PIX_FMT_NONE;
1202 avctx->hwaccel = hwaccel;
1208 #if FF_API_AVFRAME_LAVC
1209 void avcodec_get_frame_defaults(AVFrame *frame)
1211 #if LIBAVCODEC_VERSION_MAJOR >= 55
1212 // extended_data should explicitly be freed when needed, this code is unsafe currently
1213 // also this is not compatible to the <55 ABI/API
1214 if (frame->extended_data != frame->data && 0)
1215 av_freep(&frame->extended_data);
1218 memset(frame, 0, sizeof(AVFrame));
1219 av_frame_unref(frame);
1222 AVFrame *avcodec_alloc_frame(void)
1224 return av_frame_alloc();
1227 void avcodec_free_frame(AVFrame **frame)
1229 av_frame_free(frame);
1233 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1234 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1235 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1236 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1237 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1239 int av_codec_get_max_lowres(const AVCodec *codec)
1241 return codec->max_lowres;
1244 static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
1246 memset(sub, 0, sizeof(*sub));
1247 sub->pts = AV_NOPTS_VALUE;
1250 static int get_bit_rate(AVCodecContext *ctx)
1253 int bits_per_sample;
1255 switch (ctx->codec_type) {
1256 case AVMEDIA_TYPE_VIDEO:
1257 case AVMEDIA_TYPE_DATA:
1258 case AVMEDIA_TYPE_SUBTITLE:
1259 case AVMEDIA_TYPE_ATTACHMENT:
1260 bit_rate = ctx->bit_rate;
1262 case AVMEDIA_TYPE_AUDIO:
1263 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1264 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1273 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1277 ff_unlock_avcodec();
1279 ret = avcodec_open2(avctx, codec, options);
1281 ff_lock_avcodec(avctx);
1285 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1288 AVDictionary *tmp = NULL;
1290 if (avcodec_is_open(avctx))
1293 if ((!codec && !avctx->codec)) {
1294 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1295 return AVERROR(EINVAL);
1297 if ((codec && avctx->codec && codec != avctx->codec)) {
1298 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1299 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1300 return AVERROR(EINVAL);
1303 codec = avctx->codec;
1305 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1306 return AVERROR(EINVAL);
1309 av_dict_copy(&tmp, *options, 0);
1311 ret = ff_lock_avcodec(avctx);
1315 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1316 if (!avctx->internal) {
1317 ret = AVERROR(ENOMEM);
1321 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1322 if (!avctx->internal->pool) {
1323 ret = AVERROR(ENOMEM);
1327 avctx->internal->to_free = av_frame_alloc();
1328 if (!avctx->internal->to_free) {
1329 ret = AVERROR(ENOMEM);
1333 if (codec->priv_data_size > 0) {
1334 if (!avctx->priv_data) {
1335 avctx->priv_data = av_mallocz(codec->priv_data_size);
1336 if (!avctx->priv_data) {
1337 ret = AVERROR(ENOMEM);
1340 if (codec->priv_class) {
1341 *(const AVClass **)avctx->priv_data = codec->priv_class;
1342 av_opt_set_defaults(avctx->priv_data);
1345 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1348 avctx->priv_data = NULL;
1350 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1353 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1354 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1355 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1356 if (avctx->coded_width && avctx->coded_height)
1357 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1358 else if (avctx->width && avctx->height)
1359 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1364 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1365 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1366 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1367 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1368 ff_set_dimensions(avctx, 0, 0);
1371 if (avctx->width > 0 && avctx->height > 0) {
1372 if (av_image_check_sar(avctx->width, avctx->height,
1373 avctx->sample_aspect_ratio) < 0) {
1374 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1375 avctx->sample_aspect_ratio.num,
1376 avctx->sample_aspect_ratio.den);
1377 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1381 /* if the decoder init function was already called previously,
1382 * free the already allocated subtitle_header before overwriting it */
1383 if (av_codec_is_decoder(codec))
1384 av_freep(&avctx->subtitle_header);
1386 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1387 ret = AVERROR(EINVAL);
1391 avctx->codec = codec;
1392 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1393 avctx->codec_id == AV_CODEC_ID_NONE) {
1394 avctx->codec_type = codec->type;
1395 avctx->codec_id = codec->id;
1397 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1398 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1399 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1400 ret = AVERROR(EINVAL);
1403 avctx->frame_number = 0;
1404 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1406 if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1407 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1408 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1410 av_log(avctx, AV_LOG_ERROR,
1411 "The %s '%s' is experimental but experimental codecs are not enabled, "
1412 "add '-strict %d' if you want to use it.\n",
1413 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1414 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1415 if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
1416 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1417 codec_string, codec2->name);
1418 ret = AVERROR_EXPERIMENTAL;
1422 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1423 (!avctx->time_base.num || !avctx->time_base.den)) {
1424 avctx->time_base.num = 1;
1425 avctx->time_base.den = avctx->sample_rate;
1429 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1431 if (CONFIG_FRAME_THREAD_ENCODER) {
1432 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1433 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1434 ff_lock_avcodec(avctx);
1440 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1441 ret = ff_thread_init(avctx);
1446 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
1447 avctx->thread_count = 1;
1449 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1450 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1451 avctx->codec->max_lowres);
1452 ret = AVERROR(EINVAL);
1456 if (av_codec_is_encoder(avctx->codec)) {
1458 if (avctx->codec->sample_fmts) {
1459 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1460 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1462 if (avctx->channels == 1 &&
1463 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1464 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1465 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1469 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1471 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1472 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1473 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1474 ret = AVERROR(EINVAL);
1478 if (avctx->codec->pix_fmts) {
1479 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1480 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1482 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1483 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1484 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1486 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1487 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1488 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1489 ret = AVERROR(EINVAL);
1493 if (avctx->codec->supported_samplerates) {
1494 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1495 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1497 if (avctx->codec->supported_samplerates[i] == 0) {
1498 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1499 avctx->sample_rate);
1500 ret = AVERROR(EINVAL);
1504 if (avctx->codec->channel_layouts) {
1505 if (!avctx->channel_layout) {
1506 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1508 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1509 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1511 if (avctx->codec->channel_layouts[i] == 0) {
1513 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1514 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1515 ret = AVERROR(EINVAL);
1520 if (avctx->channel_layout && avctx->channels) {
1521 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1522 if (channels != avctx->channels) {
1524 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1525 av_log(avctx, AV_LOG_ERROR,
1526 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1527 buf, channels, avctx->channels);
1528 ret = AVERROR(EINVAL);
1531 } else if (avctx->channel_layout) {
1532 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1534 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1535 if (avctx->width <= 0 || avctx->height <= 0) {
1536 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1537 ret = AVERROR(EINVAL);
1541 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1542 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1543 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1546 if (!avctx->rc_initial_buffer_occupancy)
1547 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1550 avctx->pts_correction_num_faulty_pts =
1551 avctx->pts_correction_num_faulty_dts = 0;
1552 avctx->pts_correction_last_pts =
1553 avctx->pts_correction_last_dts = INT64_MIN;
1555 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1556 || avctx->internal->frame_thread_encoder)) {
1557 ret = avctx->codec->init(avctx);
1565 if (av_codec_is_decoder(avctx->codec)) {
1566 if (!avctx->bit_rate)
1567 avctx->bit_rate = get_bit_rate(avctx);
1568 /* validate channel layout from the decoder */
1569 if (avctx->channel_layout) {
1570 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1571 if (!avctx->channels)
1572 avctx->channels = channels;
1573 else if (channels != avctx->channels) {
1575 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1576 av_log(avctx, AV_LOG_WARNING,
1577 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1578 "ignoring specified channel layout\n",
1579 buf, channels, avctx->channels);
1580 avctx->channel_layout = 0;
1583 if (avctx->channels && avctx->channels < 0 ||
1584 avctx->channels > FF_SANE_NB_CHANNELS) {
1585 ret = AVERROR(EINVAL);
1588 if (avctx->sub_charenc) {
1589 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1590 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1591 "supported with subtitles codecs\n");
1592 ret = AVERROR(EINVAL);
1594 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1595 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1596 "subtitles character encoding will be ignored\n",
1597 avctx->codec_descriptor->name);
1598 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1600 /* input character encoding is set for a text based subtitle
1601 * codec at this point */
1602 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1603 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1605 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1607 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1608 if (cd == (iconv_t)-1) {
1609 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1610 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1611 ret = AVERROR(errno);
1616 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1617 "conversion needs a libavcodec built with iconv support "
1618 "for this codec\n");
1619 ret = AVERROR(ENOSYS);
1627 ff_unlock_avcodec();
1629 av_dict_free(options);
1636 av_freep(&avctx->priv_data);
1637 if (avctx->internal) {
1638 av_frame_free(&avctx->internal->to_free);
1639 av_freep(&avctx->internal->pool);
1641 av_freep(&avctx->internal);
1642 avctx->codec = NULL;
1646 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
1648 if (avpkt->size < 0) {
1649 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1650 return AVERROR(EINVAL);
1652 if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1653 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1654 size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
1655 return AVERROR(EINVAL);
1659 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1660 if (!avpkt->data || avpkt->size < size) {
1661 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1662 avpkt->data = avctx->internal->byte_buffer;
1663 avpkt->size = avctx->internal->byte_buffer_size;
1664 #if FF_API_DESTRUCT_PACKET
1665 FF_DISABLE_DEPRECATION_WARNINGS
1666 avpkt->destruct = NULL;
1667 FF_ENABLE_DEPRECATION_WARNINGS
1673 AVBufferRef *buf = avpkt->buf;
1674 #if FF_API_DESTRUCT_PACKET
1675 FF_DISABLE_DEPRECATION_WARNINGS
1676 void *destruct = avpkt->destruct;
1677 FF_ENABLE_DEPRECATION_WARNINGS
1680 if (avpkt->size < size) {
1681 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1682 return AVERROR(EINVAL);
1685 av_init_packet(avpkt);
1686 #if FF_API_DESTRUCT_PACKET
1687 FF_DISABLE_DEPRECATION_WARNINGS
1688 avpkt->destruct = destruct;
1689 FF_ENABLE_DEPRECATION_WARNINGS
1695 int ret = av_new_packet(avpkt, size);
1697 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1702 int ff_alloc_packet(AVPacket *avpkt, int size)
1704 return ff_alloc_packet2(NULL, avpkt, size);
1708 * Pad last frame with silence.
1710 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1712 AVFrame *frame = NULL;
1715 if (!(frame = av_frame_alloc()))
1716 return AVERROR(ENOMEM);
1718 frame->format = src->format;
1719 frame->channel_layout = src->channel_layout;
1720 av_frame_set_channels(frame, av_frame_get_channels(src));
1721 frame->nb_samples = s->frame_size;
1722 ret = av_frame_get_buffer(frame, 32);
1726 ret = av_frame_copy_props(frame, src);
1730 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1731 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1733 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1734 frame->nb_samples - src->nb_samples,
1735 s->channels, s->sample_fmt)) < 0)
1743 av_frame_free(&frame);
1747 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1749 const AVFrame *frame,
1750 int *got_packet_ptr)
1752 AVFrame *extended_frame = NULL;
1753 AVFrame *padded_frame = NULL;
1755 AVPacket user_pkt = *avpkt;
1756 int needs_realloc = !user_pkt.data;
1758 *got_packet_ptr = 0;
1760 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1761 av_free_packet(avpkt);
1762 av_init_packet(avpkt);
1766 /* ensure that extended_data is properly set */
1767 if (frame && !frame->extended_data) {
1768 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1769 avctx->channels > AV_NUM_DATA_POINTERS) {
1770 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1771 "with more than %d channels, but extended_data is not set.\n",
1772 AV_NUM_DATA_POINTERS);
1773 return AVERROR(EINVAL);
1775 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1777 extended_frame = av_frame_alloc();
1778 if (!extended_frame)
1779 return AVERROR(ENOMEM);
1781 memcpy(extended_frame, frame, sizeof(AVFrame));
1782 extended_frame->extended_data = extended_frame->data;
1783 frame = extended_frame;
1786 /* check for valid frame size */
1788 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1789 if (frame->nb_samples > avctx->frame_size) {
1790 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1791 ret = AVERROR(EINVAL);
1794 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1795 if (frame->nb_samples < avctx->frame_size &&
1796 !avctx->internal->last_audio_frame) {
1797 ret = pad_last_frame(avctx, &padded_frame, frame);
1801 frame = padded_frame;
1802 avctx->internal->last_audio_frame = 1;
1805 if (frame->nb_samples != avctx->frame_size) {
1806 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1807 ret = AVERROR(EINVAL);
1813 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1815 if (*got_packet_ptr) {
1816 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1817 if (avpkt->pts == AV_NOPTS_VALUE)
1818 avpkt->pts = frame->pts;
1819 if (!avpkt->duration)
1820 avpkt->duration = ff_samples_to_time_base(avctx,
1823 avpkt->dts = avpkt->pts;
1828 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1830 if (user_pkt.data) {
1831 if (user_pkt.size >= avpkt->size) {
1832 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1834 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1835 avpkt->size = user_pkt.size;
1838 avpkt->buf = user_pkt.buf;
1839 avpkt->data = user_pkt.data;
1840 #if FF_API_DESTRUCT_PACKET
1841 FF_DISABLE_DEPRECATION_WARNINGS
1842 avpkt->destruct = user_pkt.destruct;
1843 FF_ENABLE_DEPRECATION_WARNINGS
1846 if (av_dup_packet(avpkt) < 0) {
1847 ret = AVERROR(ENOMEM);
1853 if (needs_realloc && avpkt->data) {
1854 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1856 avpkt->data = avpkt->buf->data;
1859 avctx->frame_number++;
1862 if (ret < 0 || !*got_packet_ptr) {
1863 av_free_packet(avpkt);
1864 av_init_packet(avpkt);
1868 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1869 * this needs to be moved to the encoders, but for now we can do it
1870 * here to simplify things */
1871 avpkt->flags |= AV_PKT_FLAG_KEY;
1874 av_frame_free(&padded_frame);
1875 av_free(extended_frame);
1880 #if FF_API_OLD_ENCODE_AUDIO
1881 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
1882 uint8_t *buf, int buf_size,
1883 const short *samples)
1887 int ret, samples_size, got_packet;
1889 av_init_packet(&pkt);
1891 pkt.size = buf_size;
1894 frame = av_frame_alloc();
1896 return AVERROR(ENOMEM);
1898 if (avctx->frame_size) {
1899 frame->nb_samples = avctx->frame_size;
1901 /* if frame_size is not set, the number of samples must be
1902 * calculated from the buffer size */
1904 if (!av_get_bits_per_sample(avctx->codec_id)) {
1905 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
1906 "support this codec\n");
1907 av_frame_free(&frame);
1908 return AVERROR(EINVAL);
1910 nb_samples = (int64_t)buf_size * 8 /
1911 (av_get_bits_per_sample(avctx->codec_id) *
1913 if (nb_samples >= INT_MAX) {
1914 av_frame_free(&frame);
1915 return AVERROR(EINVAL);
1917 frame->nb_samples = nb_samples;
1920 /* it is assumed that the samples buffer is large enough based on the
1921 * relevant parameters */
1922 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
1924 avctx->sample_fmt, 1);
1925 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
1927 (const uint8_t *)samples,
1928 samples_size, 1)) < 0) {
1929 av_frame_free(&frame);
1933 /* fabricate frame pts from sample count.
1934 * this is needed because the avcodec_encode_audio() API does not have
1935 * a way for the user to provide pts */
1936 if (avctx->sample_rate && avctx->time_base.num)
1937 frame->pts = ff_samples_to_time_base(avctx,
1938 avctx->internal->sample_count);
1940 frame->pts = AV_NOPTS_VALUE;
1941 avctx->internal->sample_count += frame->nb_samples;
1947 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
1948 if (!ret && got_packet && avctx->coded_frame) {
1949 avctx->coded_frame->pts = pkt.pts;
1950 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1952 /* free any side data since we cannot return it */
1953 av_packet_free_side_data(&pkt);
1955 if (frame && frame->extended_data != frame->data)
1956 av_freep(&frame->extended_data);
1958 av_frame_free(&frame);
1959 return ret ? ret : pkt.size;
1964 #if FF_API_OLD_ENCODE_VIDEO
1965 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1966 const AVFrame *pict)
1969 int ret, got_packet = 0;
1971 if (buf_size < FF_MIN_BUFFER_SIZE) {
1972 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
1976 av_init_packet(&pkt);
1978 pkt.size = buf_size;
1980 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
1981 if (!ret && got_packet && avctx->coded_frame) {
1982 avctx->coded_frame->pts = pkt.pts;
1983 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1986 /* free any side data since we cannot return it */
1987 if (pkt.side_data_elems > 0) {
1989 for (i = 0; i < pkt.side_data_elems; i++)
1990 av_free(pkt.side_data[i].data);
1991 av_freep(&pkt.side_data);
1992 pkt.side_data_elems = 0;
1995 return ret ? ret : pkt.size;
2000 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
2002 const AVFrame *frame,
2003 int *got_packet_ptr)
2006 AVPacket user_pkt = *avpkt;
2007 int needs_realloc = !user_pkt.data;
2009 *got_packet_ptr = 0;
2011 if(CONFIG_FRAME_THREAD_ENCODER &&
2012 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
2013 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
2015 if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
2016 avctx->stats_out[0] = '\0';
2018 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
2019 av_free_packet(avpkt);
2020 av_init_packet(avpkt);
2025 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
2026 return AVERROR(EINVAL);
2028 av_assert0(avctx->codec->encode2);
2030 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2031 av_assert0(ret <= 0);
2033 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2035 if (user_pkt.data) {
2036 if (user_pkt.size >= avpkt->size) {
2037 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2039 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2040 avpkt->size = user_pkt.size;
2043 avpkt->buf = user_pkt.buf;
2044 avpkt->data = user_pkt.data;
2045 #if FF_API_DESTRUCT_PACKET
2046 FF_DISABLE_DEPRECATION_WARNINGS
2047 avpkt->destruct = user_pkt.destruct;
2048 FF_ENABLE_DEPRECATION_WARNINGS
2051 if (av_dup_packet(avpkt) < 0) {
2052 ret = AVERROR(ENOMEM);
2058 if (!*got_packet_ptr)
2060 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
2061 avpkt->pts = avpkt->dts = frame->pts;
2063 if (needs_realloc && avpkt->data) {
2064 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
2066 avpkt->data = avpkt->buf->data;
2069 avctx->frame_number++;
2072 if (ret < 0 || !*got_packet_ptr)
2073 av_free_packet(avpkt);
2075 av_packet_merge_side_data(avpkt);
2081 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2082 const AVSubtitle *sub)
2085 if (sub->start_display_time) {
2086 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2090 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2091 avctx->frame_number++;
2096 * Attempt to guess proper monotonic timestamps for decoded video frames
2097 * which might have incorrect times. Input timestamps may wrap around, in
2098 * which case the output will as well.
2100 * @param pts the pts field of the decoded AVPacket, as passed through
2102 * @param dts the dts field of the decoded AVPacket
2103 * @return one of the input values, may be AV_NOPTS_VALUE
2105 static int64_t guess_correct_pts(AVCodecContext *ctx,
2106 int64_t reordered_pts, int64_t dts)
2108 int64_t pts = AV_NOPTS_VALUE;
2110 if (dts != AV_NOPTS_VALUE) {
2111 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2112 ctx->pts_correction_last_dts = dts;
2113 } else if (reordered_pts != AV_NOPTS_VALUE)
2114 ctx->pts_correction_last_dts = reordered_pts;
2116 if (reordered_pts != AV_NOPTS_VALUE) {
2117 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2118 ctx->pts_correction_last_pts = reordered_pts;
2119 } else if(dts != AV_NOPTS_VALUE)
2120 ctx->pts_correction_last_pts = dts;
2122 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2123 && reordered_pts != AV_NOPTS_VALUE)
2124 pts = reordered_pts;
2131 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2134 const uint8_t *data;
2137 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2141 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) {
2142 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2143 "changes, but PARAM_CHANGE side data was sent to it.\n");
2144 return AVERROR(EINVAL);
2150 flags = bytestream_get_le32(&data);
2153 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2156 avctx->channels = bytestream_get_le32(&data);
2159 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2162 avctx->channel_layout = bytestream_get_le64(&data);
2165 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2168 avctx->sample_rate = bytestream_get_le32(&data);
2171 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2174 avctx->width = bytestream_get_le32(&data);
2175 avctx->height = bytestream_get_le32(&data);
2177 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2184 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2185 return AVERROR_INVALIDDATA;
2188 static int add_metadata_from_side_data(AVCodecContext *avctx, AVFrame *frame)
2191 const uint8_t *side_metadata;
2193 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
2195 side_metadata = av_packet_get_side_data(avctx->internal->pkt,
2196 AV_PKT_DATA_STRINGS_METADATA, &size);
2197 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
2200 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2204 /* move the original frame to our backup */
2205 av_frame_unref(avci->to_free);
2206 av_frame_move_ref(avci->to_free, frame);
2208 /* now copy everything except the AVBufferRefs back
2209 * note that we make a COPY of the side data, so calling av_frame_free() on
2210 * the caller's frame will work properly */
2211 ret = av_frame_copy_props(frame, avci->to_free);
2215 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2216 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2217 if (avci->to_free->extended_data != avci->to_free->data) {
2218 int planes = av_frame_get_channels(avci->to_free);
2219 int size = planes * sizeof(*frame->extended_data);
2222 av_frame_unref(frame);
2226 frame->extended_data = av_malloc(size);
2227 if (!frame->extended_data) {
2228 av_frame_unref(frame);
2229 return AVERROR(ENOMEM);
2231 memcpy(frame->extended_data, avci->to_free->extended_data,
2234 frame->extended_data = frame->data;
2236 frame->format = avci->to_free->format;
2237 frame->width = avci->to_free->width;
2238 frame->height = avci->to_free->height;
2239 frame->channel_layout = avci->to_free->channel_layout;
2240 frame->nb_samples = avci->to_free->nb_samples;
2241 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2246 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2247 int *got_picture_ptr,
2248 const AVPacket *avpkt)
2250 AVCodecInternal *avci = avctx->internal;
2252 // copy to ensure we do not change avpkt
2253 AVPacket tmp = *avpkt;
2256 return AVERROR(EINVAL);
2257 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2258 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2259 return AVERROR(EINVAL);
2262 *got_picture_ptr = 0;
2263 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2264 return AVERROR(EINVAL);
2266 av_frame_unref(picture);
2268 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2269 int did_split = av_packet_split_side_data(&tmp);
2270 ret = apply_param_change(avctx, &tmp);
2272 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2273 if (avctx->err_recognition & AV_EF_EXPLODE)
2277 avctx->internal->pkt = &tmp;
2278 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2279 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2282 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2284 picture->pkt_dts = avpkt->dts;
2286 if(!avctx->has_b_frames){
2287 av_frame_set_pkt_pos(picture, avpkt->pos);
2289 //FIXME these should be under if(!avctx->has_b_frames)
2290 /* get_buffer is supposed to set frame parameters */
2291 if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
2292 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2293 if (!picture->width) picture->width = avctx->width;
2294 if (!picture->height) picture->height = avctx->height;
2295 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2298 add_metadata_from_side_data(avctx, picture);
2301 emms_c(); //needed to avoid an emms_c() call before every return;
2303 avctx->internal->pkt = NULL;
2305 av_packet_free_side_data(&tmp);
2310 if (*got_picture_ptr) {
2311 if (!avctx->refcounted_frames) {
2312 int err = unrefcount_frame(avci, picture);
2317 avctx->frame_number++;
2318 av_frame_set_best_effort_timestamp(picture,
2319 guess_correct_pts(avctx,
2323 av_frame_unref(picture);
2327 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2328 * make sure it's set correctly */
2329 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2334 #if FF_API_OLD_DECODE_AUDIO
2335 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2336 int *frame_size_ptr,
2339 AVFrame *frame = av_frame_alloc();
2340 int ret, got_frame = 0;
2343 return AVERROR(ENOMEM);
2344 if (avctx->get_buffer != avcodec_default_get_buffer) {
2345 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2346 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2347 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2348 "avcodec_decode_audio4()\n");
2349 avctx->get_buffer = avcodec_default_get_buffer;
2350 avctx->release_buffer = avcodec_default_release_buffer;
2353 ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt);
2355 if (ret >= 0 && got_frame) {
2357 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2358 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2360 avctx->sample_fmt, 1);
2361 if (*frame_size_ptr < data_size) {
2362 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2363 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2364 av_frame_free(&frame);
2365 return AVERROR(EINVAL);
2368 memcpy(samples, frame->extended_data[0], plane_size);
2370 if (planar && avctx->channels > 1) {
2371 uint8_t *out = ((uint8_t *)samples) + plane_size;
2372 for (ch = 1; ch < avctx->channels; ch++) {
2373 memcpy(out, frame->extended_data[ch], plane_size);
2377 *frame_size_ptr = data_size;
2379 *frame_size_ptr = 0;
2381 av_frame_free(&frame);
2387 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2390 const AVPacket *avpkt)
2392 AVCodecInternal *avci = avctx->internal;
2397 if (!avpkt->data && avpkt->size) {
2398 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2399 return AVERROR(EINVAL);
2402 return AVERROR(EINVAL);
2403 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2404 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2405 return AVERROR(EINVAL);
2408 av_frame_unref(frame);
2410 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2413 uint32_t discard_padding = 0;
2414 // copy to ensure we do not change avpkt
2415 AVPacket tmp = *avpkt;
2416 int did_split = av_packet_split_side_data(&tmp);
2417 ret = apply_param_change(avctx, &tmp);
2419 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2420 if (avctx->err_recognition & AV_EF_EXPLODE)
2424 avctx->internal->pkt = &tmp;
2425 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2426 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2428 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2429 frame->pkt_dts = avpkt->dts;
2431 if (ret >= 0 && *got_frame_ptr) {
2432 add_metadata_from_side_data(avctx, frame);
2433 avctx->frame_number++;
2434 av_frame_set_best_effort_timestamp(frame,
2435 guess_correct_pts(avctx,
2438 if (frame->format == AV_SAMPLE_FMT_NONE)
2439 frame->format = avctx->sample_fmt;
2440 if (!frame->channel_layout)
2441 frame->channel_layout = avctx->channel_layout;
2442 if (!av_frame_get_channels(frame))
2443 av_frame_set_channels(frame, avctx->channels);
2444 if (!frame->sample_rate)
2445 frame->sample_rate = avctx->sample_rate;
2448 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2449 if(side && side_size>=10) {
2450 avctx->internal->skip_samples = AV_RL32(side);
2451 av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n",
2452 avctx->internal->skip_samples);
2453 discard_padding = AV_RL32(side + 4);
2455 if (avctx->internal->skip_samples && *got_frame_ptr) {
2456 if(frame->nb_samples <= avctx->internal->skip_samples){
2458 avctx->internal->skip_samples -= frame->nb_samples;
2459 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2460 avctx->internal->skip_samples);
2462 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2463 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2464 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2465 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2466 (AVRational){1, avctx->sample_rate},
2467 avctx->pkt_timebase);
2468 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2469 frame->pkt_pts += diff_ts;
2470 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2471 frame->pkt_dts += diff_ts;
2472 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2473 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2475 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2477 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2478 avctx->internal->skip_samples, frame->nb_samples);
2479 frame->nb_samples -= avctx->internal->skip_samples;
2480 avctx->internal->skip_samples = 0;
2484 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr) {
2485 if (discard_padding == frame->nb_samples) {
2488 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2489 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2490 (AVRational){1, avctx->sample_rate},
2491 avctx->pkt_timebase);
2492 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2493 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2495 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2497 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2498 discard_padding, frame->nb_samples);
2499 frame->nb_samples -= discard_padding;
2503 avctx->internal->pkt = NULL;
2505 av_packet_free_side_data(&tmp);
2510 if (ret >= 0 && *got_frame_ptr) {
2511 if (!avctx->refcounted_frames) {
2512 int err = unrefcount_frame(avci, frame);
2517 av_frame_unref(frame);
2523 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2524 static int recode_subtitle(AVCodecContext *avctx,
2525 AVPacket *outpkt, const AVPacket *inpkt)
2528 iconv_t cd = (iconv_t)-1;
2535 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2539 cd = iconv_open("UTF-8", avctx->sub_charenc);
2540 av_assert0(cd != (iconv_t)-1);
2545 if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) {
2546 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2547 ret = AVERROR(ENOMEM);
2551 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2554 outpkt->buf = tmp.buf;
2555 outpkt->data = tmp.data;
2556 outpkt->size = tmp.size;
2557 outb = outpkt->data;
2558 outl = outpkt->size;
2560 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2561 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2562 outl >= outpkt->size || inl != 0) {
2563 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2564 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2565 av_free_packet(&tmp);
2566 ret = AVERROR(errno);
2569 outpkt->size -= outl;
2570 memset(outpkt->data + outpkt->size, 0, outl);
2573 if (cd != (iconv_t)-1)
2577 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2578 return AVERROR(EINVAL);
2582 static int utf8_check(const uint8_t *str)
2584 const uint8_t *byte;
2585 uint32_t codepoint, min;
2589 GET_UTF8(codepoint, *(byte++), return 0;);
2590 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2591 1 << (5 * (byte - str) - 4);
2592 if (codepoint < min || codepoint >= 0x110000 ||
2593 codepoint == 0xFFFE /* BOM */ ||
2594 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2601 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2607 if (!avpkt->data && avpkt->size) {
2608 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2609 return AVERROR(EINVAL);
2612 return AVERROR(EINVAL);
2613 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2614 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2615 return AVERROR(EINVAL);
2619 avcodec_get_subtitle_defaults(sub);
2621 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
2622 AVPacket pkt_recoded;
2623 AVPacket tmp = *avpkt;
2624 int did_split = av_packet_split_side_data(&tmp);
2625 //apply_param_change(avctx, &tmp);
2628 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2630 * If the side data is smaller than the buffer padding size, the
2631 * remaining bytes should have already been filled with zeros by the
2632 * original packet allocation anyway. */
2633 memset(tmp.data + tmp.size, 0,
2634 FFMIN(avpkt->size - tmp.size, FF_INPUT_BUFFER_PADDING_SIZE));
2638 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2642 avctx->internal->pkt = &pkt_recoded;
2644 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2645 sub->pts = av_rescale_q(avpkt->pts,
2646 avctx->pkt_timebase, AV_TIME_BASE_Q);
2647 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2648 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2649 !!*got_sub_ptr >= !!sub->num_rects);
2651 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2652 avctx->pkt_timebase.num) {
2653 AVRational ms = { 1, 1000 };
2654 sub->end_display_time = av_rescale_q(avpkt->duration,
2655 avctx->pkt_timebase, ms);
2658 for (i = 0; i < sub->num_rects; i++) {
2659 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2660 av_log(avctx, AV_LOG_ERROR,
2661 "Invalid UTF-8 in decoded subtitles text; "
2662 "maybe missing -sub_charenc option\n");
2663 avsubtitle_free(sub);
2664 return AVERROR_INVALIDDATA;
2668 if (tmp.data != pkt_recoded.data) { // did we recode?
2669 /* prevent from destroying side data from original packet */
2670 pkt_recoded.side_data = NULL;
2671 pkt_recoded.side_data_elems = 0;
2673 av_free_packet(&pkt_recoded);
2675 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2677 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2679 avctx->internal->pkt = NULL;
2683 av_packet_free_side_data(&tmp);
2689 avctx->frame_number++;
2695 void avsubtitle_free(AVSubtitle *sub)
2699 for (i = 0; i < sub->num_rects; i++) {
2700 av_freep(&sub->rects[i]->pict.data[0]);
2701 av_freep(&sub->rects[i]->pict.data[1]);
2702 av_freep(&sub->rects[i]->pict.data[2]);
2703 av_freep(&sub->rects[i]->pict.data[3]);
2704 av_freep(&sub->rects[i]->text);
2705 av_freep(&sub->rects[i]->ass);
2706 av_freep(&sub->rects[i]);
2709 av_freep(&sub->rects);
2711 memset(sub, 0, sizeof(AVSubtitle));
2714 av_cold int avcodec_close(AVCodecContext *avctx)
2719 if (avcodec_is_open(avctx)) {
2720 FramePool *pool = avctx->internal->pool;
2722 if (CONFIG_FRAME_THREAD_ENCODER &&
2723 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2724 ff_frame_thread_encoder_free(avctx);
2726 if (HAVE_THREADS && avctx->internal->thread_ctx)
2727 ff_thread_free(avctx);
2728 if (avctx->codec && avctx->codec->close)
2729 avctx->codec->close(avctx);
2730 avctx->coded_frame = NULL;
2731 avctx->internal->byte_buffer_size = 0;
2732 av_freep(&avctx->internal->byte_buffer);
2733 av_frame_free(&avctx->internal->to_free);
2734 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2735 av_buffer_pool_uninit(&pool->pools[i]);
2736 av_freep(&avctx->internal->pool);
2738 if (avctx->hwaccel && avctx->hwaccel->uninit)
2739 avctx->hwaccel->uninit(avctx);
2740 av_freep(&avctx->internal->hwaccel_priv_data);
2742 av_freep(&avctx->internal);
2745 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2746 av_opt_free(avctx->priv_data);
2748 av_freep(&avctx->priv_data);
2749 if (av_codec_is_encoder(avctx->codec))
2750 av_freep(&avctx->extradata);
2751 avctx->codec = NULL;
2752 avctx->active_thread_type = 0;
2757 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2760 //This is for future deprecatec codec ids, its empty since
2761 //last major bump but will fill up again over time, please don't remove it
2762 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2763 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2764 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2765 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2766 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2767 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2768 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2769 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2770 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2771 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2772 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2773 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2774 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2775 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2776 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2777 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2778 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2779 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2780 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2781 default : return id;
2785 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2787 AVCodec *p, *experimental = NULL;
2789 id= remap_deprecated_codec_id(id);
2791 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2793 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
2800 return experimental;
2803 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2805 return find_encdec(id, 1);
2808 AVCodec *avcodec_find_encoder_by_name(const char *name)
2815 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2822 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2824 return find_encdec(id, 0);
2827 AVCodec *avcodec_find_decoder_by_name(const char *name)
2834 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2841 const char *avcodec_get_name(enum AVCodecID id)
2843 const AVCodecDescriptor *cd;
2846 if (id == AV_CODEC_ID_NONE)
2848 cd = avcodec_descriptor_get(id);
2851 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2852 codec = avcodec_find_decoder(id);
2855 codec = avcodec_find_encoder(id);
2858 return "unknown_codec";
2861 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
2863 int i, len, ret = 0;
2865 #define TAG_PRINT(x) \
2866 (((x) >= '0' && (x) <= '9') || \
2867 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
2868 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
2870 for (i = 0; i < 4; i++) {
2871 len = snprintf(buf, buf_size,
2872 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
2874 buf_size = buf_size > len ? buf_size - len : 0;
2881 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
2883 const char *codec_type;
2884 const char *codec_name;
2885 const char *profile = NULL;
2888 AVRational display_aspect_ratio;
2890 if (!buf || buf_size <= 0)
2892 codec_type = av_get_media_type_string(enc->codec_type);
2893 codec_name = avcodec_get_name(enc->codec_id);
2894 if (enc->profile != FF_PROFILE_UNKNOWN) {
2898 p = encode ? avcodec_find_encoder(enc->codec_id) :
2899 avcodec_find_decoder(enc->codec_id);
2901 profile = av_get_profile_name(p, enc->profile);
2904 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
2906 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
2908 if (enc->codec && strcmp(enc->codec->name, codec_name))
2909 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
2912 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
2913 if (enc->codec_tag) {
2915 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
2916 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2917 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
2920 switch (enc->codec_type) {
2921 case AVMEDIA_TYPE_VIDEO:
2922 if (enc->pix_fmt != AV_PIX_FMT_NONE) {
2923 char detail[256] = "(";
2924 const char *colorspace_name;
2925 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2927 av_get_pix_fmt_name(enc->pix_fmt));
2928 if (enc->bits_per_raw_sample &&
2929 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
2930 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
2931 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
2932 av_strlcatf(detail, sizeof(detail),
2933 enc->color_range == AVCOL_RANGE_MPEG ? "tv, ": "pc, ");
2935 colorspace_name = av_get_colorspace_name(enc->colorspace);
2936 if (colorspace_name)
2937 av_strlcatf(detail, sizeof(detail), "%s, ", colorspace_name);
2939 if (strlen(detail) > 1) {
2940 detail[strlen(detail) - 2] = 0;
2941 av_strlcatf(buf, buf_size, "%s)", detail);
2945 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2947 enc->width, enc->height);
2948 if (enc->sample_aspect_ratio.num) {
2949 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
2950 enc->width * enc->sample_aspect_ratio.num,
2951 enc->height * enc->sample_aspect_ratio.den,
2953 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2954 " [SAR %d:%d DAR %d:%d]",
2955 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
2956 display_aspect_ratio.num, display_aspect_ratio.den);
2958 if (av_log_get_level() >= AV_LOG_DEBUG) {
2959 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2960 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2962 enc->time_base.num / g, enc->time_base.den / g);
2966 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2967 ", q=%d-%d", enc->qmin, enc->qmax);
2970 case AVMEDIA_TYPE_AUDIO:
2971 if (enc->sample_rate) {
2972 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2973 ", %d Hz", enc->sample_rate);
2975 av_strlcat(buf, ", ", buf_size);
2976 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
2977 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
2978 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2979 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
2982 case AVMEDIA_TYPE_DATA:
2983 if (av_log_get_level() >= AV_LOG_DEBUG) {
2984 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2986 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2988 enc->time_base.num / g, enc->time_base.den / g);
2991 case AVMEDIA_TYPE_SUBTITLE:
2993 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2994 ", %dx%d", enc->width, enc->height);
3000 if (enc->flags & CODEC_FLAG_PASS1)
3001 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3003 if (enc->flags & CODEC_FLAG_PASS2)
3004 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3007 bitrate = get_bit_rate(enc);
3009 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3010 ", %d kb/s", bitrate / 1000);
3011 } else if (enc->rc_max_rate > 0) {
3012 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3013 ", max. %d kb/s", enc->rc_max_rate / 1000);
3017 const char *av_get_profile_name(const AVCodec *codec, int profile)
3020 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3023 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3024 if (p->profile == profile)
3030 unsigned avcodec_version(void)
3032 // av_assert0(AV_CODEC_ID_V410==164);
3033 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3034 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3035 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3036 av_assert0(AV_CODEC_ID_SRT==94216);
3037 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3039 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
3040 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
3041 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
3042 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
3043 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
3044 return LIBAVCODEC_VERSION_INT;
3047 const char *avcodec_configuration(void)
3049 return FFMPEG_CONFIGURATION;
3052 const char *avcodec_license(void)
3054 #define LICENSE_PREFIX "libavcodec license: "
3055 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3058 void avcodec_flush_buffers(AVCodecContext *avctx)
3060 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3061 ff_thread_flush(avctx);
3062 else if (avctx->codec->flush)
3063 avctx->codec->flush(avctx);
3065 avctx->pts_correction_last_pts =
3066 avctx->pts_correction_last_dts = INT64_MIN;
3068 if (!avctx->refcounted_frames)
3069 av_frame_unref(avctx->internal->to_free);
3072 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3075 case AV_CODEC_ID_8SVX_EXP:
3076 case AV_CODEC_ID_8SVX_FIB:
3077 case AV_CODEC_ID_ADPCM_CT:
3078 case AV_CODEC_ID_ADPCM_IMA_APC:
3079 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3080 case AV_CODEC_ID_ADPCM_IMA_OKI:
3081 case AV_CODEC_ID_ADPCM_IMA_WS:
3082 case AV_CODEC_ID_ADPCM_G722:
3083 case AV_CODEC_ID_ADPCM_YAMAHA:
3085 case AV_CODEC_ID_DSD_LSBF:
3086 case AV_CODEC_ID_DSD_MSBF:
3087 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3088 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3089 case AV_CODEC_ID_PCM_ALAW:
3090 case AV_CODEC_ID_PCM_MULAW:
3091 case AV_CODEC_ID_PCM_S8:
3092 case AV_CODEC_ID_PCM_S8_PLANAR:
3093 case AV_CODEC_ID_PCM_U8:
3094 case AV_CODEC_ID_PCM_ZORK:
3096 case AV_CODEC_ID_PCM_S16BE:
3097 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3098 case AV_CODEC_ID_PCM_S16LE:
3099 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3100 case AV_CODEC_ID_PCM_U16BE:
3101 case AV_CODEC_ID_PCM_U16LE:
3103 case AV_CODEC_ID_PCM_S24DAUD:
3104 case AV_CODEC_ID_PCM_S24BE:
3105 case AV_CODEC_ID_PCM_S24LE:
3106 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3107 case AV_CODEC_ID_PCM_U24BE:
3108 case AV_CODEC_ID_PCM_U24LE:
3110 case AV_CODEC_ID_PCM_S32BE:
3111 case AV_CODEC_ID_PCM_S32LE:
3112 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3113 case AV_CODEC_ID_PCM_U32BE:
3114 case AV_CODEC_ID_PCM_U32LE:
3115 case AV_CODEC_ID_PCM_F32BE:
3116 case AV_CODEC_ID_PCM_F32LE:
3118 case AV_CODEC_ID_PCM_F64BE:
3119 case AV_CODEC_ID_PCM_F64LE:
3126 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3128 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3129 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3130 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3131 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3132 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3133 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3134 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3135 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3136 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3137 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3138 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3140 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3141 return AV_CODEC_ID_NONE;
3142 if (be < 0 || be > 1)
3144 return map[fmt][be];
3147 int av_get_bits_per_sample(enum AVCodecID codec_id)
3150 case AV_CODEC_ID_ADPCM_SBPRO_2:
3152 case AV_CODEC_ID_ADPCM_SBPRO_3:
3154 case AV_CODEC_ID_ADPCM_SBPRO_4:
3155 case AV_CODEC_ID_ADPCM_IMA_WAV:
3156 case AV_CODEC_ID_ADPCM_IMA_QT:
3157 case AV_CODEC_ID_ADPCM_SWF:
3158 case AV_CODEC_ID_ADPCM_MS:
3161 return av_get_exact_bits_per_sample(codec_id);
3165 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3167 int id, sr, ch, ba, tag, bps;
3169 id = avctx->codec_id;
3170 sr = avctx->sample_rate;
3171 ch = avctx->channels;
3172 ba = avctx->block_align;
3173 tag = avctx->codec_tag;
3174 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3176 /* codecs with an exact constant bits per sample */
3177 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3178 return (frame_bytes * 8LL) / (bps * ch);
3179 bps = avctx->bits_per_coded_sample;
3181 /* codecs with a fixed packet duration */
3183 case AV_CODEC_ID_ADPCM_ADX: return 32;
3184 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3185 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3186 case AV_CODEC_ID_AMR_NB:
3187 case AV_CODEC_ID_EVRC:
3188 case AV_CODEC_ID_GSM:
3189 case AV_CODEC_ID_QCELP:
3190 case AV_CODEC_ID_RA_288: return 160;
3191 case AV_CODEC_ID_AMR_WB:
3192 case AV_CODEC_ID_GSM_MS: return 320;
3193 case AV_CODEC_ID_MP1: return 384;
3194 case AV_CODEC_ID_ATRAC1: return 512;
3195 case AV_CODEC_ID_ATRAC3: return 1024;
3196 case AV_CODEC_ID_MP2:
3197 case AV_CODEC_ID_MUSEPACK7: return 1152;
3198 case AV_CODEC_ID_AC3: return 1536;
3202 /* calc from sample rate */
3203 if (id == AV_CODEC_ID_TTA)
3204 return 256 * sr / 245;
3207 /* calc from sample rate and channels */
3208 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3209 return (480 << (sr / 22050)) / ch;
3214 /* calc from block_align */
3215 if (id == AV_CODEC_ID_SIPR) {
3217 case 20: return 160;
3218 case 19: return 144;
3219 case 29: return 288;
3220 case 37: return 480;
3222 } else if (id == AV_CODEC_ID_ILBC) {
3224 case 38: return 160;
3225 case 50: return 240;
3230 if (frame_bytes > 0) {
3231 /* calc from frame_bytes only */
3232 if (id == AV_CODEC_ID_TRUESPEECH)
3233 return 240 * (frame_bytes / 32);
3234 if (id == AV_CODEC_ID_NELLYMOSER)
3235 return 256 * (frame_bytes / 64);
3236 if (id == AV_CODEC_ID_RA_144)
3237 return 160 * (frame_bytes / 20);
3238 if (id == AV_CODEC_ID_G723_1)
3239 return 240 * (frame_bytes / 24);
3242 /* calc from frame_bytes and bits_per_coded_sample */
3243 if (id == AV_CODEC_ID_ADPCM_G726)
3244 return frame_bytes * 8 / bps;
3248 /* calc from frame_bytes and channels */
3250 case AV_CODEC_ID_ADPCM_AFC:
3251 return frame_bytes / (9 * ch) * 16;
3252 case AV_CODEC_ID_ADPCM_DTK:
3253 return frame_bytes / (16 * ch) * 28;
3254 case AV_CODEC_ID_ADPCM_4XM:
3255 case AV_CODEC_ID_ADPCM_IMA_ISS:
3256 return (frame_bytes - 4 * ch) * 2 / ch;
3257 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3258 return (frame_bytes - 4) * 2 / ch;
3259 case AV_CODEC_ID_ADPCM_IMA_AMV:
3260 return (frame_bytes - 8) * 2 / ch;
3261 case AV_CODEC_ID_ADPCM_XA:
3262 return (frame_bytes / 128) * 224 / ch;
3263 case AV_CODEC_ID_INTERPLAY_DPCM:
3264 return (frame_bytes - 6 - ch) / ch;
3265 case AV_CODEC_ID_ROQ_DPCM:
3266 return (frame_bytes - 8) / ch;
3267 case AV_CODEC_ID_XAN_DPCM:
3268 return (frame_bytes - 2 * ch) / ch;
3269 case AV_CODEC_ID_MACE3:
3270 return 3 * frame_bytes / ch;
3271 case AV_CODEC_ID_MACE6:
3272 return 6 * frame_bytes / ch;
3273 case AV_CODEC_ID_PCM_LXF:
3274 return 2 * (frame_bytes / (5 * ch));
3275 case AV_CODEC_ID_IAC:
3276 case AV_CODEC_ID_IMC:
3277 return 4 * frame_bytes / ch;
3281 /* calc from frame_bytes, channels, and codec_tag */
3282 if (id == AV_CODEC_ID_SOL_DPCM) {
3284 return frame_bytes / ch;
3286 return frame_bytes * 2 / ch;
3291 /* calc from frame_bytes, channels, and block_align */
3292 int blocks = frame_bytes / ba;
3293 switch (avctx->codec_id) {
3294 case AV_CODEC_ID_ADPCM_IMA_WAV:
3295 if (bps < 2 || bps > 5)
3297 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3298 case AV_CODEC_ID_ADPCM_IMA_DK3:
3299 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3300 case AV_CODEC_ID_ADPCM_IMA_DK4:
3301 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3302 case AV_CODEC_ID_ADPCM_IMA_RAD:
3303 return blocks * ((ba - 4 * ch) * 2 / ch);
3304 case AV_CODEC_ID_ADPCM_MS:
3305 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3310 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3311 switch (avctx->codec_id) {
3312 case AV_CODEC_ID_PCM_DVD:
3315 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3316 case AV_CODEC_ID_PCM_BLURAY:
3319 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3320 case AV_CODEC_ID_S302M:
3321 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3331 int ff_thread_init(AVCodecContext *s)
3338 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3352 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3355 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3359 #if FF_API_MISSING_SAMPLE
3360 FF_DISABLE_DEPRECATION_WARNINGS
3361 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3363 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3364 "version to the newest one from Git. If the problem still "
3365 "occurs, it means that your file has a feature which has not "
3366 "been implemented.\n", feature);
3368 av_log_ask_for_sample(avc, NULL);
3371 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3373 va_list argument_list;
3375 va_start(argument_list, msg);
3378 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3379 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3380 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3381 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3383 va_end(argument_list);
3385 FF_ENABLE_DEPRECATION_WARNINGS
3386 #endif /* FF_API_MISSING_SAMPLE */
3388 static AVHWAccel *first_hwaccel = NULL;
3389 static AVHWAccel **last_hwaccel = &first_hwaccel;
3391 void av_register_hwaccel(AVHWAccel *hwaccel)
3393 AVHWAccel **p = last_hwaccel;
3394 hwaccel->next = NULL;
3395 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3397 last_hwaccel = &hwaccel->next;
3400 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3402 return hwaccel ? hwaccel->next : first_hwaccel;
3405 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3408 if (lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
3410 if (lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY))
3417 if (lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
3419 if (lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE))
3425 int ff_lock_avcodec(AVCodecContext *log_ctx)
3428 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3431 entangled_thread_counter++;
3432 if (entangled_thread_counter != 1) {
3433 av_log(log_ctx, AV_LOG_ERROR, "Insufficient thread locking around avcodec_open/close()\n");
3435 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3436 ff_avcodec_locked = 1;
3437 ff_unlock_avcodec();
3438 return AVERROR(EINVAL);
3440 av_assert0(!ff_avcodec_locked);
3441 ff_avcodec_locked = 1;
3445 int ff_unlock_avcodec(void)
3447 av_assert0(ff_avcodec_locked);
3448 ff_avcodec_locked = 0;
3449 entangled_thread_counter--;
3451 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3457 int avpriv_lock_avformat(void)
3460 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3466 int avpriv_unlock_avformat(void)
3469 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3475 unsigned int avpriv_toupper4(unsigned int x)
3477 return av_toupper(x & 0xFF) +
3478 (av_toupper((x >> 8) & 0xFF) << 8) +
3479 (av_toupper((x >> 16) & 0xFF) << 16) +
3480 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3483 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3487 dst->owner = src->owner;
3489 ret = av_frame_ref(dst->f, src->f);
3493 if (src->progress &&
3494 !(dst->progress = av_buffer_ref(src->progress))) {
3495 ff_thread_release_buffer(dst->owner, dst);
3496 return AVERROR(ENOMEM);
3504 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3506 return ff_get_format(avctx, fmt);
3509 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3512 return ff_get_buffer(avctx, f->f, flags);
3515 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3518 av_frame_unref(f->f);
3521 void ff_thread_finish_setup(AVCodecContext *avctx)
3525 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3529 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3533 int ff_thread_can_start_frame(AVCodecContext *avctx)
3538 int ff_alloc_entries(AVCodecContext *avctx, int count)
3543 void ff_reset_entries(AVCodecContext *avctx)
3547 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3551 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3557 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3559 AVCodec *c= avcodec_find_decoder(codec_id);
3561 c= avcodec_find_encoder(codec_id);
3565 if (codec_id <= AV_CODEC_ID_NONE)
3566 return AVMEDIA_TYPE_UNKNOWN;
3567 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3568 return AVMEDIA_TYPE_VIDEO;
3569 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3570 return AVMEDIA_TYPE_AUDIO;
3571 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3572 return AVMEDIA_TYPE_SUBTITLE;
3574 return AVMEDIA_TYPE_UNKNOWN;
3577 int avcodec_is_open(AVCodecContext *s)
3579 return !!s->internal;
3582 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3587 ret = av_bprint_finalize(buf, &str);
3590 avctx->extradata = str;
3591 /* Note: the string is NUL terminated (so extradata can be read as a
3592 * string), but the ending character is not accounted in the size (in
3593 * binary formats you are likely not supposed to mux that character). When
3594 * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE
3596 avctx->extradata_size = buf->len;
3600 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3602 uint32_t *av_restrict state)
3606 av_assert0(p <= end);
3610 for (i = 0; i < 3; i++) {
3611 uint32_t tmp = *state << 8;
3612 *state = tmp + *(p++);
3613 if (tmp == 0x100 || p == end)
3618 if (p[-1] > 1 ) p += 3;
3619 else if (p[-2] ) p += 2;
3620 else if (p[-3]|(p[-1]-1)) p++;
3627 p = FFMIN(p, end) - 4;
3628 *state = AV_RB32(p);