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"
45 #include "libavutil/opt.h"
47 #include "frame_thread_encoder.h"
50 #include "bytestream.h"
63 #include "compat/w32pthreads.h"
65 #include "compat/os2threads.h"
68 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
69 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
71 void * volatile * mutex = arg;
79 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
81 return AVERROR(ENOMEM);
82 if ((err = pthread_mutex_init(tmp, NULL))) {
86 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
87 pthread_mutex_destroy(tmp);
92 if ((err = pthread_mutex_lock(*mutex)))
97 if ((err = pthread_mutex_unlock(*mutex)))
101 case AV_LOCK_DESTROY:
103 pthread_mutex_destroy(*mutex);
105 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
110 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
112 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
116 volatile int ff_avcodec_locked;
117 static int volatile entangled_thread_counter = 0;
118 static void *codec_mutex;
119 static void *avformat_mutex;
121 #if CONFIG_RAISE_MAJOR
122 # define LIBNAME "LIBAVCODEC_155"
124 # define LIBNAME "LIBAVCODEC_55"
127 #if FF_API_FAST_MALLOC && CONFIG_SHARED && HAVE_SYMVER
128 FF_SYMVER(void*, av_fast_realloc, (void *ptr, unsigned int *size, size_t min_size), LIBNAME)
130 return av_fast_realloc(ptr, size, min_size);
133 FF_SYMVER(void, av_fast_malloc, (void *ptr, unsigned int *size, size_t min_size), LIBNAME)
135 av_fast_malloc(ptr, size, min_size);
139 static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
142 if (min_size < *size)
144 min_size = FFMAX(17 * min_size / 16 + 32, min_size);
146 *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
153 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
156 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
161 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
162 memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
165 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
168 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
173 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
174 memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
177 /* encoder management */
178 static AVCodec *first_avcodec = NULL;
179 static AVCodec **last_avcodec = &first_avcodec;
181 AVCodec *av_codec_next(const AVCodec *c)
186 return first_avcodec;
189 static av_cold void avcodec_init(void)
191 static int initialized = 0;
193 if (initialized != 0)
198 ff_dsputil_static_init();
201 int av_codec_is_encoder(const AVCodec *codec)
203 return codec && (codec->encode_sub || codec->encode2);
206 int av_codec_is_decoder(const AVCodec *codec)
208 return codec && codec->decode;
211 av_cold void avcodec_register(AVCodec *codec)
218 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
220 last_avcodec = &codec->next;
222 if (codec->init_static_data)
223 codec->init_static_data(codec);
227 unsigned avcodec_get_edge_width(void)
233 #if FF_API_SET_DIMENSIONS
234 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
236 int ret = ff_set_dimensions(s, width, height);
238 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
243 int ff_set_dimensions(AVCodecContext *s, int width, int height)
245 int ret = av_image_check_size(width, height, 0, s);
250 s->coded_width = width;
251 s->coded_height = height;
252 s->width = FF_CEIL_RSHIFT(width, s->lowres);
253 s->height = FF_CEIL_RSHIFT(height, s->lowres);
258 int ff_side_data_update_matrix_encoding(AVFrame *frame,
259 enum AVMatrixEncoding matrix_encoding)
261 AVFrameSideData *side_data;
262 enum AVMatrixEncoding *data;
264 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
266 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
267 sizeof(enum AVMatrixEncoding));
270 return AVERROR(ENOMEM);
272 data = (enum AVMatrixEncoding*)side_data->data;
273 *data = matrix_encoding;
278 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
279 int linesize_align[AV_NUM_DATA_POINTERS])
285 switch (s->pix_fmt) {
286 case AV_PIX_FMT_YUV420P:
287 case AV_PIX_FMT_YUYV422:
288 case AV_PIX_FMT_YVYU422:
289 case AV_PIX_FMT_UYVY422:
290 case AV_PIX_FMT_YUV422P:
291 case AV_PIX_FMT_YUV440P:
292 case AV_PIX_FMT_YUV444P:
293 case AV_PIX_FMT_GBRAP:
294 case AV_PIX_FMT_GBRP:
295 case AV_PIX_FMT_GRAY8:
296 case AV_PIX_FMT_GRAY16BE:
297 case AV_PIX_FMT_GRAY16LE:
298 case AV_PIX_FMT_YUVJ420P:
299 case AV_PIX_FMT_YUVJ422P:
300 case AV_PIX_FMT_YUVJ440P:
301 case AV_PIX_FMT_YUVJ444P:
302 case AV_PIX_FMT_YUVA420P:
303 case AV_PIX_FMT_YUVA422P:
304 case AV_PIX_FMT_YUVA444P:
305 case AV_PIX_FMT_YUV420P9LE:
306 case AV_PIX_FMT_YUV420P9BE:
307 case AV_PIX_FMT_YUV420P10LE:
308 case AV_PIX_FMT_YUV420P10BE:
309 case AV_PIX_FMT_YUV420P12LE:
310 case AV_PIX_FMT_YUV420P12BE:
311 case AV_PIX_FMT_YUV420P14LE:
312 case AV_PIX_FMT_YUV420P14BE:
313 case AV_PIX_FMT_YUV420P16LE:
314 case AV_PIX_FMT_YUV420P16BE:
315 case AV_PIX_FMT_YUVA420P9LE:
316 case AV_PIX_FMT_YUVA420P9BE:
317 case AV_PIX_FMT_YUVA420P10LE:
318 case AV_PIX_FMT_YUVA420P10BE:
319 case AV_PIX_FMT_YUVA420P16LE:
320 case AV_PIX_FMT_YUVA420P16BE:
321 case AV_PIX_FMT_YUV422P9LE:
322 case AV_PIX_FMT_YUV422P9BE:
323 case AV_PIX_FMT_YUV422P10LE:
324 case AV_PIX_FMT_YUV422P10BE:
325 case AV_PIX_FMT_YUV422P12LE:
326 case AV_PIX_FMT_YUV422P12BE:
327 case AV_PIX_FMT_YUV422P14LE:
328 case AV_PIX_FMT_YUV422P14BE:
329 case AV_PIX_FMT_YUV422P16LE:
330 case AV_PIX_FMT_YUV422P16BE:
331 case AV_PIX_FMT_YUVA422P9LE:
332 case AV_PIX_FMT_YUVA422P9BE:
333 case AV_PIX_FMT_YUVA422P10LE:
334 case AV_PIX_FMT_YUVA422P10BE:
335 case AV_PIX_FMT_YUVA422P16LE:
336 case AV_PIX_FMT_YUVA422P16BE:
337 case AV_PIX_FMT_YUV444P9LE:
338 case AV_PIX_FMT_YUV444P9BE:
339 case AV_PIX_FMT_YUV444P10LE:
340 case AV_PIX_FMT_YUV444P10BE:
341 case AV_PIX_FMT_YUV444P12LE:
342 case AV_PIX_FMT_YUV444P12BE:
343 case AV_PIX_FMT_YUV444P14LE:
344 case AV_PIX_FMT_YUV444P14BE:
345 case AV_PIX_FMT_YUV444P16LE:
346 case AV_PIX_FMT_YUV444P16BE:
347 case AV_PIX_FMT_YUVA444P9LE:
348 case AV_PIX_FMT_YUVA444P9BE:
349 case AV_PIX_FMT_YUVA444P10LE:
350 case AV_PIX_FMT_YUVA444P10BE:
351 case AV_PIX_FMT_YUVA444P16LE:
352 case AV_PIX_FMT_YUVA444P16BE:
353 case AV_PIX_FMT_GBRP9LE:
354 case AV_PIX_FMT_GBRP9BE:
355 case AV_PIX_FMT_GBRP10LE:
356 case AV_PIX_FMT_GBRP10BE:
357 case AV_PIX_FMT_GBRP12LE:
358 case AV_PIX_FMT_GBRP12BE:
359 case AV_PIX_FMT_GBRP14LE:
360 case AV_PIX_FMT_GBRP14BE:
361 w_align = 16; //FIXME assume 16 pixel per macroblock
362 h_align = 16 * 2; // interlaced needs 2 macroblocks height
364 case AV_PIX_FMT_YUV411P:
365 case AV_PIX_FMT_YUVJ411P:
366 case AV_PIX_FMT_UYYVYY411:
370 case AV_PIX_FMT_YUV410P:
371 if (s->codec_id == AV_CODEC_ID_SVQ1) {
376 case AV_PIX_FMT_RGB555:
377 if (s->codec_id == AV_CODEC_ID_RPZA) {
382 case AV_PIX_FMT_PAL8:
383 case AV_PIX_FMT_BGR8:
384 case AV_PIX_FMT_RGB8:
385 if (s->codec_id == AV_CODEC_ID_SMC ||
386 s->codec_id == AV_CODEC_ID_CINEPAK) {
391 case AV_PIX_FMT_BGR24:
392 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
393 (s->codec_id == AV_CODEC_ID_ZLIB)) {
398 case AV_PIX_FMT_RGB24:
399 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
410 if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) {
411 w_align = FFMAX(w_align, 8);
414 *width = FFALIGN(*width, w_align);
415 *height = FFALIGN(*height, h_align);
416 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres)
417 // some of the optimized chroma MC reads one line too much
418 // which is also done in mpeg decoders with lowres > 0
421 for (i = 0; i < 4; i++)
422 linesize_align[i] = STRIDE_ALIGN;
425 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
427 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
428 int chroma_shift = desc->log2_chroma_w;
429 int linesize_align[AV_NUM_DATA_POINTERS];
432 avcodec_align_dimensions2(s, width, height, linesize_align);
433 align = FFMAX(linesize_align[0], linesize_align[3]);
434 linesize_align[1] <<= chroma_shift;
435 linesize_align[2] <<= chroma_shift;
436 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
437 *width = FFALIGN(*width, align);
440 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
442 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
443 return AVERROR(EINVAL);
446 *xpos = (pos&1) * 128;
447 *ypos = ((pos>>1)^(pos<4)) * 128;
452 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
456 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
457 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
460 return AVCHROMA_LOC_UNSPECIFIED;
463 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
464 enum AVSampleFormat sample_fmt, const uint8_t *buf,
465 int buf_size, int align)
467 int ch, planar, needed_size, ret = 0;
469 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
470 frame->nb_samples, sample_fmt,
472 if (buf_size < needed_size)
473 return AVERROR(EINVAL);
475 planar = av_sample_fmt_is_planar(sample_fmt);
476 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
477 if (!(frame->extended_data = av_mallocz(nb_channels *
478 sizeof(*frame->extended_data))))
479 return AVERROR(ENOMEM);
481 frame->extended_data = frame->data;
484 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
485 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
486 sample_fmt, align)) < 0) {
487 if (frame->extended_data != frame->data)
488 av_freep(&frame->extended_data);
491 if (frame->extended_data != frame->data) {
492 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
493 frame->data[ch] = frame->extended_data[ch];
499 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
501 FramePool *pool = avctx->internal->pool;
504 switch (avctx->codec_type) {
505 case AVMEDIA_TYPE_VIDEO: {
508 int w = frame->width;
509 int h = frame->height;
510 int tmpsize, unaligned;
512 if (pool->format == frame->format &&
513 pool->width == frame->width && pool->height == frame->height)
516 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
518 if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
524 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
525 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
526 av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w);
527 // increase alignment of w for next try (rhs gives the lowest bit set in w)
531 for (i = 0; i < 4; i++)
532 unaligned |= picture.linesize[i] % pool->stride_align[i];
535 tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h,
536 NULL, picture.linesize);
540 for (i = 0; i < 3 && picture.data[i + 1]; i++)
541 size[i] = picture.data[i + 1] - picture.data[i];
542 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
544 for (i = 0; i < 4; i++) {
545 av_buffer_pool_uninit(&pool->pools[i]);
546 pool->linesize[i] = picture.linesize[i];
548 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
549 CONFIG_MEMORY_POISONING ?
552 if (!pool->pools[i]) {
553 ret = AVERROR(ENOMEM);
558 pool->format = frame->format;
559 pool->width = frame->width;
560 pool->height = frame->height;
564 case AVMEDIA_TYPE_AUDIO: {
565 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
566 int planar = av_sample_fmt_is_planar(frame->format);
567 int planes = planar ? ch : 1;
569 if (pool->format == frame->format && pool->planes == planes &&
570 pool->channels == ch && frame->nb_samples == pool->samples)
573 av_buffer_pool_uninit(&pool->pools[0]);
574 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
575 frame->nb_samples, frame->format, 0);
579 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
580 if (!pool->pools[0]) {
581 ret = AVERROR(ENOMEM);
585 pool->format = frame->format;
586 pool->planes = planes;
588 pool->samples = frame->nb_samples;
591 default: av_assert0(0);
595 for (i = 0; i < 4; i++)
596 av_buffer_pool_uninit(&pool->pools[i]);
598 pool->planes = pool->channels = pool->samples = 0;
599 pool->width = pool->height = 0;
603 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
605 FramePool *pool = avctx->internal->pool;
606 int planes = pool->planes;
609 frame->linesize[0] = pool->linesize[0];
611 if (planes > AV_NUM_DATA_POINTERS) {
612 frame->extended_data = av_mallocz(planes * sizeof(*frame->extended_data));
613 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
614 frame->extended_buf = av_mallocz(frame->nb_extended_buf *
615 sizeof(*frame->extended_buf));
616 if (!frame->extended_data || !frame->extended_buf) {
617 av_freep(&frame->extended_data);
618 av_freep(&frame->extended_buf);
619 return AVERROR(ENOMEM);
622 frame->extended_data = frame->data;
623 av_assert0(frame->nb_extended_buf == 0);
626 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
627 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
630 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
632 for (i = 0; i < frame->nb_extended_buf; i++) {
633 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
634 if (!frame->extended_buf[i])
636 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
639 if (avctx->debug & FF_DEBUG_BUFFERS)
640 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
644 av_frame_unref(frame);
645 return AVERROR(ENOMEM);
648 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
650 FramePool *pool = s->internal->pool;
651 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
652 int pixel_size = desc->comp[0].step_minus1 + 1;
653 int h_chroma_shift, v_chroma_shift;
656 if (pic->data[0] != NULL) {
657 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
661 memset(pic->data, 0, sizeof(pic->data));
662 pic->extended_data = pic->data;
664 av_pix_fmt_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
666 for (i = 0; i < 4 && pool->pools[i]; i++) {
667 const int h_shift = i == 0 ? 0 : h_chroma_shift;
668 const int v_shift = i == 0 ? 0 : v_chroma_shift;
669 int is_planar = pool->pools[2] || (i==0 && s->pix_fmt == AV_PIX_FMT_GRAY8);
671 pic->linesize[i] = pool->linesize[i];
673 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
677 // no edge if EDGE EMU or not planar YUV
678 if ((s->flags & CODEC_FLAG_EMU_EDGE) || !is_planar)
679 pic->data[i] = pic->buf[i]->data;
681 pic->data[i] = pic->buf[i]->data +
682 FFALIGN((pic->linesize[i] * EDGE_WIDTH >> v_shift) +
683 (pixel_size * EDGE_WIDTH >> h_shift), pool->stride_align[i]);
686 for (; i < AV_NUM_DATA_POINTERS; i++) {
688 pic->linesize[i] = 0;
690 if (pic->data[1] && !pic->data[2])
691 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
693 if (s->debug & FF_DEBUG_BUFFERS)
694 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
699 return AVERROR(ENOMEM);
702 void avpriv_color_frame(AVFrame *frame, const int c[4])
704 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
707 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
709 for (p = 0; p<desc->nb_components; p++) {
710 uint8_t *dst = frame->data[p];
711 int is_chroma = p == 1 || p == 2;
712 int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
713 int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
714 for (y = 0; y < height; y++) {
715 if (desc->comp[0].depth_minus1 >= 8) {
716 for (x = 0; x<bytes; x++)
717 ((uint16_t*)dst)[x] = c[p];
719 memset(dst, c[p], bytes);
720 dst += frame->linesize[p];
725 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
729 if ((ret = update_frame_pool(avctx, frame)) < 0)
732 #if FF_API_GET_BUFFER
733 FF_DISABLE_DEPRECATION_WARNINGS
734 frame->type = FF_BUFFER_TYPE_INTERNAL;
735 FF_ENABLE_DEPRECATION_WARNINGS
738 switch (avctx->codec_type) {
739 case AVMEDIA_TYPE_VIDEO:
740 return video_get_buffer(avctx, frame);
741 case AVMEDIA_TYPE_AUDIO:
742 return audio_get_buffer(avctx, frame);
748 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
750 if (avctx->internal->pkt) {
751 frame->pkt_pts = avctx->internal->pkt->pts;
752 av_frame_set_pkt_pos (frame, avctx->internal->pkt->pos);
753 av_frame_set_pkt_duration(frame, avctx->internal->pkt->duration);
754 av_frame_set_pkt_size (frame, avctx->internal->pkt->size);
756 frame->pkt_pts = AV_NOPTS_VALUE;
757 av_frame_set_pkt_pos (frame, -1);
758 av_frame_set_pkt_duration(frame, 0);
759 av_frame_set_pkt_size (frame, -1);
761 frame->reordered_opaque = avctx->reordered_opaque;
763 switch (avctx->codec->type) {
764 case AVMEDIA_TYPE_VIDEO:
765 frame->format = avctx->pix_fmt;
766 if (!frame->sample_aspect_ratio.num)
767 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
768 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
769 av_frame_set_colorspace(frame, avctx->colorspace);
770 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
771 av_frame_set_color_range(frame, avctx->color_range);
773 case AVMEDIA_TYPE_AUDIO:
774 if (!frame->sample_rate)
775 frame->sample_rate = avctx->sample_rate;
776 if (frame->format < 0)
777 frame->format = avctx->sample_fmt;
778 if (!frame->channel_layout) {
779 if (avctx->channel_layout) {
780 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
782 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
784 return AVERROR(EINVAL);
787 frame->channel_layout = avctx->channel_layout;
789 if (avctx->channels > FF_SANE_NB_CHANNELS) {
790 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
792 return AVERROR(ENOSYS);
796 av_frame_set_channels(frame, avctx->channels);
802 #if FF_API_GET_BUFFER
803 FF_DISABLE_DEPRECATION_WARNINGS
804 int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
806 return avcodec_default_get_buffer2(avctx, frame, 0);
809 typedef struct CompatReleaseBufPriv {
810 AVCodecContext avctx;
812 uint8_t avframe_padding[1024]; // hack to allow linking to a avutil with larger AVFrame
813 } CompatReleaseBufPriv;
815 static void compat_free_buffer(void *opaque, uint8_t *data)
817 CompatReleaseBufPriv *priv = opaque;
818 if (priv->avctx.release_buffer)
819 priv->avctx.release_buffer(&priv->avctx, &priv->frame);
823 static void compat_release_buffer(void *opaque, uint8_t *data)
825 AVBufferRef *buf = opaque;
826 av_buffer_unref(&buf);
828 FF_ENABLE_DEPRECATION_WARNINGS
831 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
833 AVPacket *pkt = avctx->internal->pkt;
836 AVFrameSideData *frame_sd;
839 frame->reordered_opaque = avctx->reordered_opaque;
841 frame->pkt_pts = AV_NOPTS_VALUE;
845 frame->pkt_pts = pkt->pts;
847 /* copy the replaygain data to the output frame */
848 packet_sd = av_packet_get_side_data(pkt, AV_PKT_DATA_REPLAYGAIN, &size);
850 frame_sd = av_frame_new_side_data(frame, AV_FRAME_DATA_REPLAYGAIN, size);
852 return AVERROR(ENOMEM);
854 memcpy(frame_sd->data, packet_sd, size);
860 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
862 int override_dimensions = 1;
865 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
866 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
867 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
868 return AVERROR(EINVAL);
871 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
872 if (frame->width <= 0 || frame->height <= 0) {
873 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
874 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
875 override_dimensions = 0;
878 ret = ff_decode_frame_props(avctx, frame);
881 if ((ret = ff_init_buffer_info(avctx, frame)) < 0)
884 #if FF_API_GET_BUFFER
885 FF_DISABLE_DEPRECATION_WARNINGS
887 * Wrap an old get_buffer()-allocated buffer in a bunch of AVBuffers.
888 * We wrap each plane in its own AVBuffer. Each of those has a reference to
889 * a dummy AVBuffer as its private data, unreffing it on free.
890 * When all the planes are freed, the dummy buffer's free callback calls
893 if (avctx->get_buffer) {
894 CompatReleaseBufPriv *priv = NULL;
895 AVBufferRef *dummy_buf = NULL;
898 if (flags & AV_GET_BUFFER_FLAG_REF)
899 frame->reference = 1;
901 ret = avctx->get_buffer(avctx, frame);
905 /* return if the buffers are already set up
906 * this would happen e.g. when a custom get_buffer() calls
907 * avcodec_default_get_buffer
912 priv = av_mallocz(sizeof(*priv));
914 ret = AVERROR(ENOMEM);
917 priv->avctx = *avctx;
918 priv->frame = *frame;
920 dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0);
922 ret = AVERROR(ENOMEM);
926 #define WRAP_PLANE(ref_out, data, data_size) \
928 AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \
930 ret = AVERROR(ENOMEM); \
933 ref_out = av_buffer_create(data, data_size, compat_release_buffer, \
936 av_frame_unref(frame); \
937 ret = AVERROR(ENOMEM); \
942 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
943 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
945 planes = av_pix_fmt_count_planes(frame->format);
946 /* workaround for AVHWAccel plane count of 0, buf[0] is used as
947 check for allocated buffers: make libavcodec happy */
948 if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
950 if (!desc || planes <= 0) {
951 ret = AVERROR(EINVAL);
955 for (i = 0; i < planes; i++) {
956 int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
957 int plane_size = (frame->height >> v_shift) * frame->linesize[i];
959 WRAP_PLANE(frame->buf[i], frame->data[i], plane_size);
962 int planar = av_sample_fmt_is_planar(frame->format);
963 planes = planar ? avctx->channels : 1;
965 if (planes > FF_ARRAY_ELEMS(frame->buf)) {
966 frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf);
967 frame->extended_buf = av_malloc(sizeof(*frame->extended_buf) *
968 frame->nb_extended_buf);
969 if (!frame->extended_buf) {
970 ret = AVERROR(ENOMEM);
975 for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++)
976 WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]);
978 for (i = 0; i < frame->nb_extended_buf; i++)
979 WRAP_PLANE(frame->extended_buf[i],
980 frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)],
984 av_buffer_unref(&dummy_buf);
987 frame->width = avctx->width;
988 frame->height = avctx->height;
993 avctx->release_buffer(avctx, frame);
995 av_buffer_unref(&dummy_buf);
998 FF_ENABLE_DEPRECATION_WARNINGS
1001 ret = avctx->get_buffer2(avctx, frame, flags);
1003 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
1004 frame->width = avctx->width;
1005 frame->height = avctx->height;
1011 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1013 int ret = get_buffer_internal(avctx, frame, flags);
1015 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1019 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
1024 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
1026 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
1027 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
1028 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
1029 av_frame_unref(frame);
1032 ff_init_buffer_info(avctx, frame);
1034 if (!frame->data[0])
1035 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1037 if (av_frame_is_writable(frame))
1038 return ff_decode_frame_props(avctx, frame);
1040 tmp = av_frame_alloc();
1042 return AVERROR(ENOMEM);
1044 av_frame_move_ref(tmp, frame);
1046 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1048 av_frame_free(&tmp);
1052 av_frame_copy(frame, tmp);
1053 av_frame_free(&tmp);
1058 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
1060 int ret = reget_buffer_internal(avctx, frame);
1062 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1066 #if FF_API_GET_BUFFER
1067 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
1069 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
1071 av_frame_unref(pic);
1074 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
1081 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
1085 for (i = 0; i < count; i++) {
1086 int r = func(c, (char *)arg + i * size);
1093 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
1097 for (i = 0; i < count; i++) {
1098 int r = func(c, arg, i, 0);
1105 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
1106 unsigned int fourcc)
1108 while (tags->pix_fmt >= 0) {
1109 if (tags->fourcc == fourcc)
1110 return tags->pix_fmt;
1113 return AV_PIX_FMT_NONE;
1116 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
1118 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1119 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1122 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
1124 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1129 #if FF_API_AVFRAME_LAVC
1130 void avcodec_get_frame_defaults(AVFrame *frame)
1132 #if LIBAVCODEC_VERSION_MAJOR >= 55
1133 // extended_data should explicitly be freed when needed, this code is unsafe currently
1134 // also this is not compatible to the <55 ABI/API
1135 if (frame->extended_data != frame->data && 0)
1136 av_freep(&frame->extended_data);
1139 memset(frame, 0, sizeof(AVFrame));
1140 av_frame_unref(frame);
1143 AVFrame *avcodec_alloc_frame(void)
1145 return av_frame_alloc();
1148 void avcodec_free_frame(AVFrame **frame)
1150 av_frame_free(frame);
1154 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1155 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1156 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1157 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1158 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1160 int av_codec_get_max_lowres(const AVCodec *codec)
1162 return codec->max_lowres;
1165 static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
1167 memset(sub, 0, sizeof(*sub));
1168 sub->pts = AV_NOPTS_VALUE;
1171 static int get_bit_rate(AVCodecContext *ctx)
1174 int bits_per_sample;
1176 switch (ctx->codec_type) {
1177 case AVMEDIA_TYPE_VIDEO:
1178 case AVMEDIA_TYPE_DATA:
1179 case AVMEDIA_TYPE_SUBTITLE:
1180 case AVMEDIA_TYPE_ATTACHMENT:
1181 bit_rate = ctx->bit_rate;
1183 case AVMEDIA_TYPE_AUDIO:
1184 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1185 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1194 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1198 ff_unlock_avcodec();
1200 ret = avcodec_open2(avctx, codec, options);
1202 ff_lock_avcodec(avctx);
1206 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1209 AVDictionary *tmp = NULL;
1211 if (avcodec_is_open(avctx))
1214 if ((!codec && !avctx->codec)) {
1215 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1216 return AVERROR(EINVAL);
1218 if ((codec && avctx->codec && codec != avctx->codec)) {
1219 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1220 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1221 return AVERROR(EINVAL);
1224 codec = avctx->codec;
1226 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1227 return AVERROR(EINVAL);
1230 av_dict_copy(&tmp, *options, 0);
1232 ret = ff_lock_avcodec(avctx);
1236 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1237 if (!avctx->internal) {
1238 ret = AVERROR(ENOMEM);
1242 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1243 if (!avctx->internal->pool) {
1244 ret = AVERROR(ENOMEM);
1248 avctx->internal->to_free = av_frame_alloc();
1249 if (!avctx->internal->to_free) {
1250 ret = AVERROR(ENOMEM);
1254 if (codec->priv_data_size > 0) {
1255 if (!avctx->priv_data) {
1256 avctx->priv_data = av_mallocz(codec->priv_data_size);
1257 if (!avctx->priv_data) {
1258 ret = AVERROR(ENOMEM);
1261 if (codec->priv_class) {
1262 *(const AVClass **)avctx->priv_data = codec->priv_class;
1263 av_opt_set_defaults(avctx->priv_data);
1266 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1269 avctx->priv_data = NULL;
1271 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1274 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1275 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1276 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1277 if (avctx->coded_width && avctx->coded_height)
1278 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1279 else if (avctx->width && avctx->height)
1280 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1285 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1286 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1287 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1288 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1289 ff_set_dimensions(avctx, 0, 0);
1292 /* if the decoder init function was already called previously,
1293 * free the already allocated subtitle_header before overwriting it */
1294 if (av_codec_is_decoder(codec))
1295 av_freep(&avctx->subtitle_header);
1297 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1298 ret = AVERROR(EINVAL);
1302 avctx->codec = codec;
1303 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1304 avctx->codec_id == AV_CODEC_ID_NONE) {
1305 avctx->codec_type = codec->type;
1306 avctx->codec_id = codec->id;
1308 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1309 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1310 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1311 ret = AVERROR(EINVAL);
1314 avctx->frame_number = 0;
1315 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1317 if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1318 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1319 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1321 av_log(avctx, AV_LOG_ERROR,
1322 "The %s '%s' is experimental but experimental codecs are not enabled, "
1323 "add '-strict %d' if you want to use it.\n",
1324 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1325 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1326 if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
1327 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1328 codec_string, codec2->name);
1329 ret = AVERROR_EXPERIMENTAL;
1333 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1334 (!avctx->time_base.num || !avctx->time_base.den)) {
1335 avctx->time_base.num = 1;
1336 avctx->time_base.den = avctx->sample_rate;
1340 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1342 if (CONFIG_FRAME_THREAD_ENCODER) {
1343 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1344 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1345 ff_lock_avcodec(avctx);
1351 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1352 ret = ff_thread_init(avctx);
1357 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
1358 avctx->thread_count = 1;
1360 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1361 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1362 avctx->codec->max_lowres);
1363 ret = AVERROR(EINVAL);
1367 if (av_codec_is_encoder(avctx->codec)) {
1369 if (avctx->codec->sample_fmts) {
1370 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1371 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1373 if (avctx->channels == 1 &&
1374 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1375 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1376 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1380 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1382 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1383 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1384 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1385 ret = AVERROR(EINVAL);
1389 if (avctx->codec->pix_fmts) {
1390 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1391 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1393 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1394 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1395 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1397 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1398 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1399 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1400 ret = AVERROR(EINVAL);
1404 if (avctx->codec->supported_samplerates) {
1405 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1406 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1408 if (avctx->codec->supported_samplerates[i] == 0) {
1409 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1410 avctx->sample_rate);
1411 ret = AVERROR(EINVAL);
1415 if (avctx->codec->channel_layouts) {
1416 if (!avctx->channel_layout) {
1417 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1419 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1420 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1422 if (avctx->codec->channel_layouts[i] == 0) {
1424 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1425 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1426 ret = AVERROR(EINVAL);
1431 if (avctx->channel_layout && avctx->channels) {
1432 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1433 if (channels != avctx->channels) {
1435 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1436 av_log(avctx, AV_LOG_ERROR,
1437 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1438 buf, channels, avctx->channels);
1439 ret = AVERROR(EINVAL);
1442 } else if (avctx->channel_layout) {
1443 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1445 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1446 avctx->codec_id != AV_CODEC_ID_PNG // For mplayer
1448 if (avctx->width <= 0 || avctx->height <= 0) {
1449 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1450 ret = AVERROR(EINVAL);
1454 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1455 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1456 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1459 if (!avctx->rc_initial_buffer_occupancy)
1460 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1463 avctx->pts_correction_num_faulty_pts =
1464 avctx->pts_correction_num_faulty_dts = 0;
1465 avctx->pts_correction_last_pts =
1466 avctx->pts_correction_last_dts = INT64_MIN;
1468 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1469 || avctx->internal->frame_thread_encoder)) {
1470 ret = avctx->codec->init(avctx);
1478 if (av_codec_is_decoder(avctx->codec)) {
1479 if (!avctx->bit_rate)
1480 avctx->bit_rate = get_bit_rate(avctx);
1481 /* validate channel layout from the decoder */
1482 if (avctx->channel_layout) {
1483 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1484 if (!avctx->channels)
1485 avctx->channels = channels;
1486 else if (channels != avctx->channels) {
1488 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1489 av_log(avctx, AV_LOG_WARNING,
1490 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1491 "ignoring specified channel layout\n",
1492 buf, channels, avctx->channels);
1493 avctx->channel_layout = 0;
1496 if (avctx->channels && avctx->channels < 0 ||
1497 avctx->channels > FF_SANE_NB_CHANNELS) {
1498 ret = AVERROR(EINVAL);
1501 if (avctx->sub_charenc) {
1502 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1503 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1504 "supported with subtitles codecs\n");
1505 ret = AVERROR(EINVAL);
1507 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1508 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1509 "subtitles character encoding will be ignored\n",
1510 avctx->codec_descriptor->name);
1511 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1513 /* input character encoding is set for a text based subtitle
1514 * codec at this point */
1515 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1516 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1518 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1520 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1521 if (cd == (iconv_t)-1) {
1522 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1523 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1524 ret = AVERROR(errno);
1529 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1530 "conversion needs a libavcodec built with iconv support "
1531 "for this codec\n");
1532 ret = AVERROR(ENOSYS);
1540 ff_unlock_avcodec();
1542 av_dict_free(options);
1549 av_freep(&avctx->priv_data);
1550 if (avctx->internal) {
1551 av_frame_free(&avctx->internal->to_free);
1552 av_freep(&avctx->internal->pool);
1554 av_freep(&avctx->internal);
1555 avctx->codec = NULL;
1559 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
1561 if (avpkt->size < 0) {
1562 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1563 return AVERROR(EINVAL);
1565 if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1566 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1567 size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
1568 return AVERROR(EINVAL);
1572 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1573 if (!avpkt->data || avpkt->size < size) {
1574 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1575 avpkt->data = avctx->internal->byte_buffer;
1576 avpkt->size = avctx->internal->byte_buffer_size;
1577 avpkt->destruct = NULL;
1582 AVBufferRef *buf = avpkt->buf;
1583 #if FF_API_DESTRUCT_PACKET
1584 FF_DISABLE_DEPRECATION_WARNINGS
1585 void *destruct = avpkt->destruct;
1586 FF_ENABLE_DEPRECATION_WARNINGS
1589 if (avpkt->size < size) {
1590 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1591 return AVERROR(EINVAL);
1594 av_init_packet(avpkt);
1595 #if FF_API_DESTRUCT_PACKET
1596 FF_DISABLE_DEPRECATION_WARNINGS
1597 avpkt->destruct = destruct;
1598 FF_ENABLE_DEPRECATION_WARNINGS
1604 int ret = av_new_packet(avpkt, size);
1606 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1611 int ff_alloc_packet(AVPacket *avpkt, int size)
1613 return ff_alloc_packet2(NULL, avpkt, size);
1617 * Pad last frame with silence.
1619 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1621 AVFrame *frame = NULL;
1624 if (!(frame = av_frame_alloc()))
1625 return AVERROR(ENOMEM);
1627 frame->format = src->format;
1628 frame->channel_layout = src->channel_layout;
1629 av_frame_set_channels(frame, av_frame_get_channels(src));
1630 frame->nb_samples = s->frame_size;
1631 ret = av_frame_get_buffer(frame, 32);
1635 ret = av_frame_copy_props(frame, src);
1639 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1640 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1642 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1643 frame->nb_samples - src->nb_samples,
1644 s->channels, s->sample_fmt)) < 0)
1652 av_frame_free(&frame);
1656 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1658 const AVFrame *frame,
1659 int *got_packet_ptr)
1661 AVFrame *extended_frame = NULL;
1662 AVFrame *padded_frame = NULL;
1664 AVPacket user_pkt = *avpkt;
1665 int needs_realloc = !user_pkt.data;
1667 *got_packet_ptr = 0;
1669 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1670 av_free_packet(avpkt);
1671 av_init_packet(avpkt);
1675 /* ensure that extended_data is properly set */
1676 if (frame && !frame->extended_data) {
1677 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1678 avctx->channels > AV_NUM_DATA_POINTERS) {
1679 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1680 "with more than %d channels, but extended_data is not set.\n",
1681 AV_NUM_DATA_POINTERS);
1682 return AVERROR(EINVAL);
1684 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1686 extended_frame = av_frame_alloc();
1687 if (!extended_frame)
1688 return AVERROR(ENOMEM);
1690 memcpy(extended_frame, frame, sizeof(AVFrame));
1691 extended_frame->extended_data = extended_frame->data;
1692 frame = extended_frame;
1695 /* check for valid frame size */
1697 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1698 if (frame->nb_samples > avctx->frame_size) {
1699 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1700 ret = AVERROR(EINVAL);
1703 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1704 if (frame->nb_samples < avctx->frame_size &&
1705 !avctx->internal->last_audio_frame) {
1706 ret = pad_last_frame(avctx, &padded_frame, frame);
1710 frame = padded_frame;
1711 avctx->internal->last_audio_frame = 1;
1714 if (frame->nb_samples != avctx->frame_size) {
1715 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1716 ret = AVERROR(EINVAL);
1722 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1724 if (*got_packet_ptr) {
1725 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1726 if (avpkt->pts == AV_NOPTS_VALUE)
1727 avpkt->pts = frame->pts;
1728 if (!avpkt->duration)
1729 avpkt->duration = ff_samples_to_time_base(avctx,
1732 avpkt->dts = avpkt->pts;
1737 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1739 if (user_pkt.data) {
1740 if (user_pkt.size >= avpkt->size) {
1741 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1743 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1744 avpkt->size = user_pkt.size;
1747 avpkt->buf = user_pkt.buf;
1748 avpkt->data = user_pkt.data;
1749 avpkt->destruct = user_pkt.destruct;
1751 if (av_dup_packet(avpkt) < 0) {
1752 ret = AVERROR(ENOMEM);
1758 if (needs_realloc && avpkt->data) {
1759 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1761 avpkt->data = avpkt->buf->data;
1764 avctx->frame_number++;
1767 if (ret < 0 || !*got_packet_ptr) {
1768 av_free_packet(avpkt);
1769 av_init_packet(avpkt);
1773 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1774 * this needs to be moved to the encoders, but for now we can do it
1775 * here to simplify things */
1776 avpkt->flags |= AV_PKT_FLAG_KEY;
1779 av_frame_free(&padded_frame);
1780 av_free(extended_frame);
1785 #if FF_API_OLD_ENCODE_AUDIO
1786 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
1787 uint8_t *buf, int buf_size,
1788 const short *samples)
1792 int ret, samples_size, got_packet;
1794 av_init_packet(&pkt);
1796 pkt.size = buf_size;
1799 frame = av_frame_alloc();
1801 return AVERROR(ENOMEM);
1803 if (avctx->frame_size) {
1804 frame->nb_samples = avctx->frame_size;
1806 /* if frame_size is not set, the number of samples must be
1807 * calculated from the buffer size */
1809 if (!av_get_bits_per_sample(avctx->codec_id)) {
1810 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
1811 "support this codec\n");
1812 av_frame_free(&frame);
1813 return AVERROR(EINVAL);
1815 nb_samples = (int64_t)buf_size * 8 /
1816 (av_get_bits_per_sample(avctx->codec_id) *
1818 if (nb_samples >= INT_MAX) {
1819 av_frame_free(&frame);
1820 return AVERROR(EINVAL);
1822 frame->nb_samples = nb_samples;
1825 /* it is assumed that the samples buffer is large enough based on the
1826 * relevant parameters */
1827 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
1829 avctx->sample_fmt, 1);
1830 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
1832 (const uint8_t *)samples,
1833 samples_size, 1)) < 0) {
1834 av_frame_free(&frame);
1838 /* fabricate frame pts from sample count.
1839 * this is needed because the avcodec_encode_audio() API does not have
1840 * a way for the user to provide pts */
1841 if (avctx->sample_rate && avctx->time_base.num)
1842 frame->pts = ff_samples_to_time_base(avctx,
1843 avctx->internal->sample_count);
1845 frame->pts = AV_NOPTS_VALUE;
1846 avctx->internal->sample_count += frame->nb_samples;
1852 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
1853 if (!ret && got_packet && avctx->coded_frame) {
1854 avctx->coded_frame->pts = pkt.pts;
1855 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1857 /* free any side data since we cannot return it */
1858 av_packet_free_side_data(&pkt);
1860 if (frame && frame->extended_data != frame->data)
1861 av_freep(&frame->extended_data);
1863 av_frame_free(&frame);
1864 return ret ? ret : pkt.size;
1869 #if FF_API_OLD_ENCODE_VIDEO
1870 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1871 const AVFrame *pict)
1874 int ret, got_packet = 0;
1876 if (buf_size < FF_MIN_BUFFER_SIZE) {
1877 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
1881 av_init_packet(&pkt);
1883 pkt.size = buf_size;
1885 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
1886 if (!ret && got_packet && avctx->coded_frame) {
1887 avctx->coded_frame->pts = pkt.pts;
1888 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1891 /* free any side data since we cannot return it */
1892 if (pkt.side_data_elems > 0) {
1894 for (i = 0; i < pkt.side_data_elems; i++)
1895 av_free(pkt.side_data[i].data);
1896 av_freep(&pkt.side_data);
1897 pkt.side_data_elems = 0;
1900 return ret ? ret : pkt.size;
1905 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1907 const AVFrame *frame,
1908 int *got_packet_ptr)
1911 AVPacket user_pkt = *avpkt;
1912 int needs_realloc = !user_pkt.data;
1914 *got_packet_ptr = 0;
1916 if(CONFIG_FRAME_THREAD_ENCODER &&
1917 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1918 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1920 if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
1921 avctx->stats_out[0] = '\0';
1923 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1924 av_free_packet(avpkt);
1925 av_init_packet(avpkt);
1930 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1931 return AVERROR(EINVAL);
1933 av_assert0(avctx->codec->encode2);
1935 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1936 av_assert0(ret <= 0);
1938 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1940 if (user_pkt.data) {
1941 if (user_pkt.size >= avpkt->size) {
1942 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1944 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1945 avpkt->size = user_pkt.size;
1948 avpkt->buf = user_pkt.buf;
1949 avpkt->data = user_pkt.data;
1950 avpkt->destruct = user_pkt.destruct;
1952 if (av_dup_packet(avpkt) < 0) {
1953 ret = AVERROR(ENOMEM);
1959 if (!*got_packet_ptr)
1961 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
1962 avpkt->pts = avpkt->dts = frame->pts;
1964 if (needs_realloc && avpkt->data) {
1965 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1967 avpkt->data = avpkt->buf->data;
1970 avctx->frame_number++;
1973 if (ret < 0 || !*got_packet_ptr)
1974 av_free_packet(avpkt);
1976 av_packet_merge_side_data(avpkt);
1982 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1983 const AVSubtitle *sub)
1986 if (sub->start_display_time) {
1987 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
1991 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
1992 avctx->frame_number++;
1997 * Attempt to guess proper monotonic timestamps for decoded video frames
1998 * which might have incorrect times. Input timestamps may wrap around, in
1999 * which case the output will as well.
2001 * @param pts the pts field of the decoded AVPacket, as passed through
2003 * @param dts the dts field of the decoded AVPacket
2004 * @return one of the input values, may be AV_NOPTS_VALUE
2006 static int64_t guess_correct_pts(AVCodecContext *ctx,
2007 int64_t reordered_pts, int64_t dts)
2009 int64_t pts = AV_NOPTS_VALUE;
2011 if (dts != AV_NOPTS_VALUE) {
2012 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2013 ctx->pts_correction_last_dts = dts;
2014 } else if (reordered_pts != AV_NOPTS_VALUE)
2015 ctx->pts_correction_last_dts = reordered_pts;
2017 if (reordered_pts != AV_NOPTS_VALUE) {
2018 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2019 ctx->pts_correction_last_pts = reordered_pts;
2020 } else if(dts != AV_NOPTS_VALUE)
2021 ctx->pts_correction_last_pts = dts;
2023 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2024 && reordered_pts != AV_NOPTS_VALUE)
2025 pts = reordered_pts;
2032 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2035 const uint8_t *data;
2038 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2042 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) {
2043 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2044 "changes, but PARAM_CHANGE side data was sent to it.\n");
2045 return AVERROR(EINVAL);
2051 flags = bytestream_get_le32(&data);
2054 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2057 avctx->channels = bytestream_get_le32(&data);
2060 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2063 avctx->channel_layout = bytestream_get_le64(&data);
2066 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2069 avctx->sample_rate = bytestream_get_le32(&data);
2072 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2075 avctx->width = bytestream_get_le32(&data);
2076 avctx->height = bytestream_get_le32(&data);
2078 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2085 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2086 return AVERROR_INVALIDDATA;
2089 static int add_metadata_from_side_data(AVCodecContext *avctx, AVFrame *frame)
2092 const uint8_t *side_metadata;
2094 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
2096 side_metadata = av_packet_get_side_data(avctx->internal->pkt,
2097 AV_PKT_DATA_STRINGS_METADATA, &size);
2098 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
2101 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2105 /* move the original frame to our backup */
2106 av_frame_unref(avci->to_free);
2107 av_frame_move_ref(avci->to_free, frame);
2109 /* now copy everything except the AVBufferRefs back
2110 * note that we make a COPY of the side data, so calling av_frame_free() on
2111 * the caller's frame will work properly */
2112 ret = av_frame_copy_props(frame, avci->to_free);
2116 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2117 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2118 if (avci->to_free->extended_data != avci->to_free->data) {
2119 int planes = av_frame_get_channels(avci->to_free);
2120 int size = planes * sizeof(*frame->extended_data);
2123 av_frame_unref(frame);
2127 frame->extended_data = av_malloc(size);
2128 if (!frame->extended_data) {
2129 av_frame_unref(frame);
2130 return AVERROR(ENOMEM);
2132 memcpy(frame->extended_data, avci->to_free->extended_data,
2135 frame->extended_data = frame->data;
2137 frame->format = avci->to_free->format;
2138 frame->width = avci->to_free->width;
2139 frame->height = avci->to_free->height;
2140 frame->channel_layout = avci->to_free->channel_layout;
2141 frame->nb_samples = avci->to_free->nb_samples;
2142 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2147 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2148 int *got_picture_ptr,
2149 const AVPacket *avpkt)
2151 AVCodecInternal *avci = avctx->internal;
2153 // copy to ensure we do not change avpkt
2154 AVPacket tmp = *avpkt;
2157 return AVERROR(EINVAL);
2158 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2159 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2160 return AVERROR(EINVAL);
2163 *got_picture_ptr = 0;
2164 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2165 return AVERROR(EINVAL);
2167 av_frame_unref(picture);
2169 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2170 int did_split = av_packet_split_side_data(&tmp);
2171 ret = apply_param_change(avctx, &tmp);
2173 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2174 if (avctx->err_recognition & AV_EF_EXPLODE)
2178 avctx->internal->pkt = &tmp;
2179 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2180 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2183 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2185 picture->pkt_dts = avpkt->dts;
2187 if(!avctx->has_b_frames){
2188 av_frame_set_pkt_pos(picture, avpkt->pos);
2190 //FIXME these should be under if(!avctx->has_b_frames)
2191 /* get_buffer is supposed to set frame parameters */
2192 if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
2193 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2194 if (!picture->width) picture->width = avctx->width;
2195 if (!picture->height) picture->height = avctx->height;
2196 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2199 add_metadata_from_side_data(avctx, picture);
2202 emms_c(); //needed to avoid an emms_c() call before every return;
2204 avctx->internal->pkt = NULL;
2206 av_packet_free_side_data(&tmp);
2211 if (*got_picture_ptr) {
2212 if (!avctx->refcounted_frames) {
2213 int err = unrefcount_frame(avci, picture);
2218 avctx->frame_number++;
2219 av_frame_set_best_effort_timestamp(picture,
2220 guess_correct_pts(avctx,
2224 av_frame_unref(picture);
2228 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2229 * make sure it's set correctly */
2230 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2235 #if FF_API_OLD_DECODE_AUDIO
2236 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2237 int *frame_size_ptr,
2240 AVFrame *frame = av_frame_alloc();
2241 int ret, got_frame = 0;
2244 return AVERROR(ENOMEM);
2245 if (avctx->get_buffer != avcodec_default_get_buffer) {
2246 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2247 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2248 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2249 "avcodec_decode_audio4()\n");
2250 avctx->get_buffer = avcodec_default_get_buffer;
2251 avctx->release_buffer = avcodec_default_release_buffer;
2254 ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt);
2256 if (ret >= 0 && got_frame) {
2258 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2259 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2261 avctx->sample_fmt, 1);
2262 if (*frame_size_ptr < data_size) {
2263 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2264 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2265 av_frame_free(&frame);
2266 return AVERROR(EINVAL);
2269 memcpy(samples, frame->extended_data[0], plane_size);
2271 if (planar && avctx->channels > 1) {
2272 uint8_t *out = ((uint8_t *)samples) + plane_size;
2273 for (ch = 1; ch < avctx->channels; ch++) {
2274 memcpy(out, frame->extended_data[ch], plane_size);
2278 *frame_size_ptr = data_size;
2280 *frame_size_ptr = 0;
2282 av_frame_free(&frame);
2288 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2291 const AVPacket *avpkt)
2293 AVCodecInternal *avci = avctx->internal;
2298 if (!avpkt->data && avpkt->size) {
2299 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2300 return AVERROR(EINVAL);
2303 return AVERROR(EINVAL);
2304 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2305 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2306 return AVERROR(EINVAL);
2309 av_frame_unref(frame);
2311 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2314 uint32_t discard_padding = 0;
2315 // copy to ensure we do not change avpkt
2316 AVPacket tmp = *avpkt;
2317 int did_split = av_packet_split_side_data(&tmp);
2318 ret = apply_param_change(avctx, &tmp);
2320 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2321 if (avctx->err_recognition & AV_EF_EXPLODE)
2325 avctx->internal->pkt = &tmp;
2326 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2327 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2329 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2330 frame->pkt_dts = avpkt->dts;
2332 if (ret >= 0 && *got_frame_ptr) {
2333 add_metadata_from_side_data(avctx, frame);
2334 avctx->frame_number++;
2335 av_frame_set_best_effort_timestamp(frame,
2336 guess_correct_pts(avctx,
2339 if (frame->format == AV_SAMPLE_FMT_NONE)
2340 frame->format = avctx->sample_fmt;
2341 if (!frame->channel_layout)
2342 frame->channel_layout = avctx->channel_layout;
2343 if (!av_frame_get_channels(frame))
2344 av_frame_set_channels(frame, avctx->channels);
2345 if (!frame->sample_rate)
2346 frame->sample_rate = avctx->sample_rate;
2349 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2350 if(side && side_size>=10) {
2351 avctx->internal->skip_samples = AV_RL32(side);
2352 av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n",
2353 avctx->internal->skip_samples);
2354 discard_padding = AV_RL32(side + 4);
2356 if (avctx->internal->skip_samples && *got_frame_ptr) {
2357 if(frame->nb_samples <= avctx->internal->skip_samples){
2359 avctx->internal->skip_samples -= frame->nb_samples;
2360 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2361 avctx->internal->skip_samples);
2363 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2364 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2365 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2366 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2367 (AVRational){1, avctx->sample_rate},
2368 avctx->pkt_timebase);
2369 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2370 frame->pkt_pts += diff_ts;
2371 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2372 frame->pkt_dts += diff_ts;
2373 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2374 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2376 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2378 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2379 avctx->internal->skip_samples, frame->nb_samples);
2380 frame->nb_samples -= avctx->internal->skip_samples;
2381 avctx->internal->skip_samples = 0;
2385 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr) {
2386 if (discard_padding == frame->nb_samples) {
2389 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2390 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2391 (AVRational){1, avctx->sample_rate},
2392 avctx->pkt_timebase);
2393 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2394 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2396 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2398 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2399 discard_padding, frame->nb_samples);
2400 frame->nb_samples -= discard_padding;
2404 avctx->internal->pkt = NULL;
2406 av_packet_free_side_data(&tmp);
2411 if (ret >= 0 && *got_frame_ptr) {
2412 if (!avctx->refcounted_frames) {
2413 int err = unrefcount_frame(avci, frame);
2418 av_frame_unref(frame);
2424 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2425 static int recode_subtitle(AVCodecContext *avctx,
2426 AVPacket *outpkt, const AVPacket *inpkt)
2429 iconv_t cd = (iconv_t)-1;
2436 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2440 cd = iconv_open("UTF-8", avctx->sub_charenc);
2441 av_assert0(cd != (iconv_t)-1);
2446 if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) {
2447 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2448 ret = AVERROR(ENOMEM);
2452 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2455 outpkt->buf = tmp.buf;
2456 outpkt->data = tmp.data;
2457 outpkt->size = tmp.size;
2458 outb = outpkt->data;
2459 outl = outpkt->size;
2461 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2462 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2463 outl >= outpkt->size || inl != 0) {
2464 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2465 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2466 av_free_packet(&tmp);
2467 ret = AVERROR(errno);
2470 outpkt->size -= outl;
2471 memset(outpkt->data + outpkt->size, 0, outl);
2474 if (cd != (iconv_t)-1)
2478 av_assert0(!"requesting subtitles recoding without iconv");
2482 static int utf8_check(const uint8_t *str)
2484 const uint8_t *byte;
2485 uint32_t codepoint, min;
2489 GET_UTF8(codepoint, *(byte++), return 0;);
2490 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2491 1 << (5 * (byte - str) - 4);
2492 if (codepoint < min || codepoint >= 0x110000 ||
2493 codepoint == 0xFFFE /* BOM */ ||
2494 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2501 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2507 if (!avpkt->data && avpkt->size) {
2508 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2509 return AVERROR(EINVAL);
2512 return AVERROR(EINVAL);
2513 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2514 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2515 return AVERROR(EINVAL);
2519 avcodec_get_subtitle_defaults(sub);
2521 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
2522 AVPacket pkt_recoded;
2523 AVPacket tmp = *avpkt;
2524 int did_split = av_packet_split_side_data(&tmp);
2525 //apply_param_change(avctx, &tmp);
2528 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2530 * If the side data is smaller than the buffer padding size, the
2531 * remaining bytes should have already been filled with zeros by the
2532 * original packet allocation anyway. */
2533 memset(tmp.data + tmp.size, 0,
2534 FFMIN(avpkt->size - tmp.size, FF_INPUT_BUFFER_PADDING_SIZE));
2538 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2542 avctx->internal->pkt = &pkt_recoded;
2544 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2545 sub->pts = av_rescale_q(avpkt->pts,
2546 avctx->pkt_timebase, AV_TIME_BASE_Q);
2547 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2548 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2549 !!*got_sub_ptr >= !!sub->num_rects);
2551 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2552 avctx->pkt_timebase.num) {
2553 AVRational ms = { 1, 1000 };
2554 sub->end_display_time = av_rescale_q(avpkt->duration,
2555 avctx->pkt_timebase, ms);
2558 for (i = 0; i < sub->num_rects; i++) {
2559 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2560 av_log(avctx, AV_LOG_ERROR,
2561 "Invalid UTF-8 in decoded subtitles text; "
2562 "maybe missing -sub_charenc option\n");
2563 avsubtitle_free(sub);
2564 return AVERROR_INVALIDDATA;
2568 if (tmp.data != pkt_recoded.data) { // did we recode?
2569 /* prevent from destroying side data from original packet */
2570 pkt_recoded.side_data = NULL;
2571 pkt_recoded.side_data_elems = 0;
2573 av_free_packet(&pkt_recoded);
2575 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2577 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2579 avctx->internal->pkt = NULL;
2583 av_packet_free_side_data(&tmp);
2589 avctx->frame_number++;
2595 void avsubtitle_free(AVSubtitle *sub)
2599 for (i = 0; i < sub->num_rects; i++) {
2600 av_freep(&sub->rects[i]->pict.data[0]);
2601 av_freep(&sub->rects[i]->pict.data[1]);
2602 av_freep(&sub->rects[i]->pict.data[2]);
2603 av_freep(&sub->rects[i]->pict.data[3]);
2604 av_freep(&sub->rects[i]->text);
2605 av_freep(&sub->rects[i]->ass);
2606 av_freep(&sub->rects[i]);
2609 av_freep(&sub->rects);
2611 memset(sub, 0, sizeof(AVSubtitle));
2614 av_cold int ff_codec_close_recursive(AVCodecContext *avctx)
2618 ff_unlock_avcodec();
2620 ret = avcodec_close(avctx);
2622 ff_lock_avcodec(NULL);
2626 av_cold int avcodec_close(AVCodecContext *avctx)
2633 ret = ff_lock_avcodec(avctx);
2637 if (avcodec_is_open(avctx)) {
2638 FramePool *pool = avctx->internal->pool;
2640 if (CONFIG_FRAME_THREAD_ENCODER &&
2641 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2642 ff_unlock_avcodec();
2643 ff_frame_thread_encoder_free(avctx);
2644 ff_lock_avcodec(avctx);
2646 if (HAVE_THREADS && avctx->internal->thread_ctx)
2647 ff_thread_free(avctx);
2648 if (avctx->codec && avctx->codec->close)
2649 avctx->codec->close(avctx);
2650 avctx->coded_frame = NULL;
2651 avctx->internal->byte_buffer_size = 0;
2652 av_freep(&avctx->internal->byte_buffer);
2653 av_frame_free(&avctx->internal->to_free);
2654 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2655 av_buffer_pool_uninit(&pool->pools[i]);
2656 av_freep(&avctx->internal->pool);
2657 av_freep(&avctx->internal);
2660 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2661 av_opt_free(avctx->priv_data);
2663 av_freep(&avctx->priv_data);
2664 if (av_codec_is_encoder(avctx->codec))
2665 av_freep(&avctx->extradata);
2666 avctx->codec = NULL;
2667 avctx->active_thread_type = 0;
2669 ff_unlock_avcodec();
2673 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2676 //This is for future deprecatec codec ids, its empty since
2677 //last major bump but will fill up again over time, please don't remove it
2678 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2679 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2680 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2681 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2682 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2683 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2684 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2685 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2686 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2687 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2688 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2689 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2690 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2691 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2692 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2693 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2694 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2695 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2696 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2697 default : return id;
2701 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2703 AVCodec *p, *experimental = NULL;
2705 id= remap_deprecated_codec_id(id);
2707 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2709 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
2716 return experimental;
2719 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2721 return find_encdec(id, 1);
2724 AVCodec *avcodec_find_encoder_by_name(const char *name)
2731 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2738 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2740 return find_encdec(id, 0);
2743 AVCodec *avcodec_find_decoder_by_name(const char *name)
2750 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2757 const char *avcodec_get_name(enum AVCodecID id)
2759 const AVCodecDescriptor *cd;
2762 if (id == AV_CODEC_ID_NONE)
2764 cd = avcodec_descriptor_get(id);
2767 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2768 codec = avcodec_find_decoder(id);
2771 codec = avcodec_find_encoder(id);
2774 return "unknown_codec";
2777 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
2779 int i, len, ret = 0;
2781 #define TAG_PRINT(x) \
2782 (((x) >= '0' && (x) <= '9') || \
2783 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
2784 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
2786 for (i = 0; i < 4; i++) {
2787 len = snprintf(buf, buf_size,
2788 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
2790 buf_size = buf_size > len ? buf_size - len : 0;
2797 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
2799 const char *codec_type;
2800 const char *codec_name;
2801 const char *profile = NULL;
2804 AVRational display_aspect_ratio;
2806 if (!buf || buf_size <= 0)
2808 codec_type = av_get_media_type_string(enc->codec_type);
2809 codec_name = avcodec_get_name(enc->codec_id);
2810 if (enc->profile != FF_PROFILE_UNKNOWN) {
2814 p = encode ? avcodec_find_encoder(enc->codec_id) :
2815 avcodec_find_decoder(enc->codec_id);
2817 profile = av_get_profile_name(p, enc->profile);
2820 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
2822 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
2824 if (enc->codec && strcmp(enc->codec->name, codec_name))
2825 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
2828 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
2829 if (enc->codec_tag) {
2831 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
2832 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2833 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
2836 switch (enc->codec_type) {
2837 case AVMEDIA_TYPE_VIDEO:
2838 if (enc->pix_fmt != AV_PIX_FMT_NONE) {
2839 char detail[256] = "(";
2840 const char *colorspace_name;
2841 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2843 av_get_pix_fmt_name(enc->pix_fmt));
2844 if (enc->bits_per_raw_sample &&
2845 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
2846 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
2847 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
2848 av_strlcatf(detail, sizeof(detail),
2849 enc->color_range == AVCOL_RANGE_MPEG ? "tv, ": "pc, ");
2851 colorspace_name = av_get_colorspace_name(enc->colorspace);
2852 if (colorspace_name)
2853 av_strlcatf(detail, sizeof(detail), "%s, ", colorspace_name);
2855 if (strlen(detail) > 1) {
2856 detail[strlen(detail) - 2] = 0;
2857 av_strlcatf(buf, buf_size, "%s)", detail);
2861 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2863 enc->width, enc->height);
2864 if (enc->sample_aspect_ratio.num) {
2865 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
2866 enc->width * enc->sample_aspect_ratio.num,
2867 enc->height * enc->sample_aspect_ratio.den,
2869 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2870 " [SAR %d:%d DAR %d:%d]",
2871 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
2872 display_aspect_ratio.num, display_aspect_ratio.den);
2874 if (av_log_get_level() >= AV_LOG_DEBUG) {
2875 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2876 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2878 enc->time_base.num / g, enc->time_base.den / g);
2882 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2883 ", q=%d-%d", enc->qmin, enc->qmax);
2886 case AVMEDIA_TYPE_AUDIO:
2887 if (enc->sample_rate) {
2888 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2889 ", %d Hz", enc->sample_rate);
2891 av_strlcat(buf, ", ", buf_size);
2892 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
2893 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
2894 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2895 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
2898 case AVMEDIA_TYPE_DATA:
2899 if (av_log_get_level() >= AV_LOG_DEBUG) {
2900 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2902 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2904 enc->time_base.num / g, enc->time_base.den / g);
2907 case AVMEDIA_TYPE_SUBTITLE:
2909 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2910 ", %dx%d", enc->width, enc->height);
2916 if (enc->flags & CODEC_FLAG_PASS1)
2917 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2919 if (enc->flags & CODEC_FLAG_PASS2)
2920 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2923 bitrate = get_bit_rate(enc);
2925 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2926 ", %d kb/s", bitrate / 1000);
2927 } else if (enc->rc_max_rate > 0) {
2928 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2929 ", max. %d kb/s", enc->rc_max_rate / 1000);
2933 const char *av_get_profile_name(const AVCodec *codec, int profile)
2936 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
2939 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
2940 if (p->profile == profile)
2946 unsigned avcodec_version(void)
2948 // av_assert0(AV_CODEC_ID_V410==164);
2949 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
2950 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
2951 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
2952 av_assert0(AV_CODEC_ID_SRT==94216);
2953 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
2955 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
2956 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
2957 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
2958 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
2959 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
2960 return LIBAVCODEC_VERSION_INT;
2963 const char *avcodec_configuration(void)
2965 return FFMPEG_CONFIGURATION;
2968 const char *avcodec_license(void)
2970 #define LICENSE_PREFIX "libavcodec license: "
2971 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
2974 void avcodec_flush_buffers(AVCodecContext *avctx)
2976 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2977 ff_thread_flush(avctx);
2978 else if (avctx->codec->flush)
2979 avctx->codec->flush(avctx);
2981 avctx->pts_correction_last_pts =
2982 avctx->pts_correction_last_dts = INT64_MIN;
2984 if (!avctx->refcounted_frames)
2985 av_frame_unref(avctx->internal->to_free);
2988 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
2991 case AV_CODEC_ID_8SVX_EXP:
2992 case AV_CODEC_ID_8SVX_FIB:
2993 case AV_CODEC_ID_ADPCM_CT:
2994 case AV_CODEC_ID_ADPCM_IMA_APC:
2995 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
2996 case AV_CODEC_ID_ADPCM_IMA_OKI:
2997 case AV_CODEC_ID_ADPCM_IMA_WS:
2998 case AV_CODEC_ID_ADPCM_G722:
2999 case AV_CODEC_ID_ADPCM_YAMAHA:
3001 case AV_CODEC_ID_DSD_LSBF:
3002 case AV_CODEC_ID_DSD_MSBF:
3003 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3004 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3005 case AV_CODEC_ID_PCM_ALAW:
3006 case AV_CODEC_ID_PCM_MULAW:
3007 case AV_CODEC_ID_PCM_S8:
3008 case AV_CODEC_ID_PCM_S8_PLANAR:
3009 case AV_CODEC_ID_PCM_U8:
3010 case AV_CODEC_ID_PCM_ZORK:
3012 case AV_CODEC_ID_PCM_S16BE:
3013 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3014 case AV_CODEC_ID_PCM_S16LE:
3015 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3016 case AV_CODEC_ID_PCM_U16BE:
3017 case AV_CODEC_ID_PCM_U16LE:
3019 case AV_CODEC_ID_PCM_S24DAUD:
3020 case AV_CODEC_ID_PCM_S24BE:
3021 case AV_CODEC_ID_PCM_S24LE:
3022 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3023 case AV_CODEC_ID_PCM_U24BE:
3024 case AV_CODEC_ID_PCM_U24LE:
3026 case AV_CODEC_ID_PCM_S32BE:
3027 case AV_CODEC_ID_PCM_S32LE:
3028 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3029 case AV_CODEC_ID_PCM_U32BE:
3030 case AV_CODEC_ID_PCM_U32LE:
3031 case AV_CODEC_ID_PCM_F32BE:
3032 case AV_CODEC_ID_PCM_F32LE:
3034 case AV_CODEC_ID_PCM_F64BE:
3035 case AV_CODEC_ID_PCM_F64LE:
3042 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3044 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3045 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3046 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3047 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3048 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3049 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3050 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3051 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3052 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3053 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3054 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3056 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3057 return AV_CODEC_ID_NONE;
3058 if (be < 0 || be > 1)
3060 return map[fmt][be];
3063 int av_get_bits_per_sample(enum AVCodecID codec_id)
3066 case AV_CODEC_ID_ADPCM_SBPRO_2:
3068 case AV_CODEC_ID_ADPCM_SBPRO_3:
3070 case AV_CODEC_ID_ADPCM_SBPRO_4:
3071 case AV_CODEC_ID_ADPCM_IMA_WAV:
3072 case AV_CODEC_ID_ADPCM_IMA_QT:
3073 case AV_CODEC_ID_ADPCM_SWF:
3074 case AV_CODEC_ID_ADPCM_MS:
3077 return av_get_exact_bits_per_sample(codec_id);
3081 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3083 int id, sr, ch, ba, tag, bps;
3085 id = avctx->codec_id;
3086 sr = avctx->sample_rate;
3087 ch = avctx->channels;
3088 ba = avctx->block_align;
3089 tag = avctx->codec_tag;
3090 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3092 /* codecs with an exact constant bits per sample */
3093 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3094 return (frame_bytes * 8LL) / (bps * ch);
3095 bps = avctx->bits_per_coded_sample;
3097 /* codecs with a fixed packet duration */
3099 case AV_CODEC_ID_ADPCM_ADX: return 32;
3100 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3101 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3102 case AV_CODEC_ID_AMR_NB:
3103 case AV_CODEC_ID_EVRC:
3104 case AV_CODEC_ID_GSM:
3105 case AV_CODEC_ID_QCELP:
3106 case AV_CODEC_ID_RA_288: return 160;
3107 case AV_CODEC_ID_AMR_WB:
3108 case AV_CODEC_ID_GSM_MS: return 320;
3109 case AV_CODEC_ID_MP1: return 384;
3110 case AV_CODEC_ID_ATRAC1: return 512;
3111 case AV_CODEC_ID_ATRAC3: return 1024;
3112 case AV_CODEC_ID_MP2:
3113 case AV_CODEC_ID_MUSEPACK7: return 1152;
3114 case AV_CODEC_ID_AC3: return 1536;
3118 /* calc from sample rate */
3119 if (id == AV_CODEC_ID_TTA)
3120 return 256 * sr / 245;
3123 /* calc from sample rate and channels */
3124 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3125 return (480 << (sr / 22050)) / ch;
3130 /* calc from block_align */
3131 if (id == AV_CODEC_ID_SIPR) {
3133 case 20: return 160;
3134 case 19: return 144;
3135 case 29: return 288;
3136 case 37: return 480;
3138 } else if (id == AV_CODEC_ID_ILBC) {
3140 case 38: return 160;
3141 case 50: return 240;
3146 if (frame_bytes > 0) {
3147 /* calc from frame_bytes only */
3148 if (id == AV_CODEC_ID_TRUESPEECH)
3149 return 240 * (frame_bytes / 32);
3150 if (id == AV_CODEC_ID_NELLYMOSER)
3151 return 256 * (frame_bytes / 64);
3152 if (id == AV_CODEC_ID_RA_144)
3153 return 160 * (frame_bytes / 20);
3154 if (id == AV_CODEC_ID_G723_1)
3155 return 240 * (frame_bytes / 24);
3158 /* calc from frame_bytes and bits_per_coded_sample */
3159 if (id == AV_CODEC_ID_ADPCM_G726)
3160 return frame_bytes * 8 / bps;
3164 /* calc from frame_bytes and channels */
3166 case AV_CODEC_ID_ADPCM_AFC:
3167 return frame_bytes / (9 * ch) * 16;
3168 case AV_CODEC_ID_ADPCM_DTK:
3169 return frame_bytes / (16 * ch) * 28;
3170 case AV_CODEC_ID_ADPCM_4XM:
3171 case AV_CODEC_ID_ADPCM_IMA_ISS:
3172 return (frame_bytes - 4 * ch) * 2 / ch;
3173 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3174 return (frame_bytes - 4) * 2 / ch;
3175 case AV_CODEC_ID_ADPCM_IMA_AMV:
3176 return (frame_bytes - 8) * 2 / ch;
3177 case AV_CODEC_ID_ADPCM_XA:
3178 return (frame_bytes / 128) * 224 / ch;
3179 case AV_CODEC_ID_INTERPLAY_DPCM:
3180 return (frame_bytes - 6 - ch) / ch;
3181 case AV_CODEC_ID_ROQ_DPCM:
3182 return (frame_bytes - 8) / ch;
3183 case AV_CODEC_ID_XAN_DPCM:
3184 return (frame_bytes - 2 * ch) / ch;
3185 case AV_CODEC_ID_MACE3:
3186 return 3 * frame_bytes / ch;
3187 case AV_CODEC_ID_MACE6:
3188 return 6 * frame_bytes / ch;
3189 case AV_CODEC_ID_PCM_LXF:
3190 return 2 * (frame_bytes / (5 * ch));
3191 case AV_CODEC_ID_IAC:
3192 case AV_CODEC_ID_IMC:
3193 return 4 * frame_bytes / ch;
3197 /* calc from frame_bytes, channels, and codec_tag */
3198 if (id == AV_CODEC_ID_SOL_DPCM) {
3200 return frame_bytes / ch;
3202 return frame_bytes * 2 / ch;
3207 /* calc from frame_bytes, channels, and block_align */
3208 int blocks = frame_bytes / ba;
3209 switch (avctx->codec_id) {
3210 case AV_CODEC_ID_ADPCM_IMA_WAV:
3211 if (bps < 2 || bps > 5)
3213 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3214 case AV_CODEC_ID_ADPCM_IMA_DK3:
3215 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3216 case AV_CODEC_ID_ADPCM_IMA_DK4:
3217 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3218 case AV_CODEC_ID_ADPCM_IMA_RAD:
3219 return blocks * ((ba - 4 * ch) * 2 / ch);
3220 case AV_CODEC_ID_ADPCM_MS:
3221 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3226 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3227 switch (avctx->codec_id) {
3228 case AV_CODEC_ID_PCM_DVD:
3231 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3232 case AV_CODEC_ID_PCM_BLURAY:
3235 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3236 case AV_CODEC_ID_S302M:
3237 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3247 int ff_thread_init(AVCodecContext *s)
3254 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3268 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3271 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3275 #if FF_API_MISSING_SAMPLE
3276 FF_DISABLE_DEPRECATION_WARNINGS
3277 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3279 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3280 "version to the newest one from Git. If the problem still "
3281 "occurs, it means that your file has a feature which has not "
3282 "been implemented.\n", feature);
3284 av_log_ask_for_sample(avc, NULL);
3287 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3289 va_list argument_list;
3291 va_start(argument_list, msg);
3294 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3295 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3296 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
3297 "and contact the ffmpeg-devel mailing list.\n");
3299 va_end(argument_list);
3301 FF_ENABLE_DEPRECATION_WARNINGS
3302 #endif /* FF_API_MISSING_SAMPLE */
3304 static AVHWAccel *first_hwaccel = NULL;
3305 static AVHWAccel **last_hwaccel = &first_hwaccel;
3307 void av_register_hwaccel(AVHWAccel *hwaccel)
3309 AVHWAccel **p = last_hwaccel;
3310 hwaccel->next = NULL;
3311 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3313 last_hwaccel = &hwaccel->next;
3316 AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
3318 return hwaccel ? hwaccel->next : first_hwaccel;
3321 AVHWAccel *ff_find_hwaccel(AVCodecContext *avctx)
3323 enum AVCodecID codec_id = avctx->codec->id;
3324 enum AVPixelFormat pix_fmt = avctx->pix_fmt;
3326 AVHWAccel *hwaccel = NULL;
3328 while ((hwaccel = av_hwaccel_next(hwaccel)))
3329 if (hwaccel->id == codec_id
3330 && hwaccel->pix_fmt == pix_fmt)
3335 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3338 if (lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
3340 if (lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY))
3347 if (lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
3349 if (lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE))
3355 int ff_lock_avcodec(AVCodecContext *log_ctx)
3358 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3361 entangled_thread_counter++;
3362 if (entangled_thread_counter != 1) {
3363 av_log(log_ctx, AV_LOG_ERROR, "Insufficient thread locking around avcodec_open/close()\n");
3365 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3366 ff_avcodec_locked = 1;
3367 ff_unlock_avcodec();
3368 return AVERROR(EINVAL);
3370 av_assert0(!ff_avcodec_locked);
3371 ff_avcodec_locked = 1;
3375 int ff_unlock_avcodec(void)
3377 av_assert0(ff_avcodec_locked);
3378 ff_avcodec_locked = 0;
3379 entangled_thread_counter--;
3381 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3387 int avpriv_lock_avformat(void)
3390 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3396 int avpriv_unlock_avformat(void)
3399 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3405 unsigned int avpriv_toupper4(unsigned int x)
3407 return av_toupper(x & 0xFF) +
3408 (av_toupper((x >> 8) & 0xFF) << 8) +
3409 (av_toupper((x >> 16) & 0xFF) << 16) +
3410 (av_toupper((x >> 24) & 0xFF) << 24);
3413 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3417 dst->owner = src->owner;
3419 ret = av_frame_ref(dst->f, src->f);
3423 if (src->progress &&
3424 !(dst->progress = av_buffer_ref(src->progress))) {
3425 ff_thread_release_buffer(dst->owner, dst);
3426 return AVERROR(ENOMEM);
3434 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3436 return avctx->get_format(avctx, fmt);
3439 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3442 return ff_get_buffer(avctx, f->f, flags);
3445 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3448 av_frame_unref(f->f);
3451 void ff_thread_finish_setup(AVCodecContext *avctx)
3455 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3459 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3463 int ff_thread_can_start_frame(AVCodecContext *avctx)
3468 int ff_alloc_entries(AVCodecContext *avctx, int count)
3473 void ff_reset_entries(AVCodecContext *avctx)
3477 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3481 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3487 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3489 AVCodec *c= avcodec_find_decoder(codec_id);
3491 c= avcodec_find_encoder(codec_id);
3495 if (codec_id <= AV_CODEC_ID_NONE)
3496 return AVMEDIA_TYPE_UNKNOWN;
3497 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3498 return AVMEDIA_TYPE_VIDEO;
3499 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3500 return AVMEDIA_TYPE_AUDIO;
3501 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3502 return AVMEDIA_TYPE_SUBTITLE;
3504 return AVMEDIA_TYPE_UNKNOWN;
3507 int avcodec_is_open(AVCodecContext *s)
3509 return !!s->internal;
3512 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3517 ret = av_bprint_finalize(buf, &str);
3520 avctx->extradata = str;
3521 /* Note: the string is NUL terminated (so extradata can be read as a
3522 * string), but the ending character is not accounted in the size (in
3523 * binary formats you are likely not supposed to mux that character). When
3524 * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE
3526 avctx->extradata_size = buf->len;
3530 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3532 uint32_t *av_restrict state)
3536 av_assert0(p <= end);
3540 for (i = 0; i < 3; i++) {
3541 uint32_t tmp = *state << 8;
3542 *state = tmp + *(p++);
3543 if (tmp == 0x100 || p == end)
3548 if (p[-1] > 1 ) p += 3;
3549 else if (p[-2] ) p += 2;
3550 else if (p[-3]|(p[-1]-1)) p++;
3557 p = FFMIN(p, end) - 4;
3558 *state = AV_RB32(p);