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"
49 #include "bytestream.h"
62 #include "compat/w32pthreads.h"
64 #include "compat/os2threads.h"
67 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
68 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
70 void * volatile * mutex = arg;
78 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
80 return AVERROR(ENOMEM);
81 if ((err = pthread_mutex_init(tmp, NULL))) {
85 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
86 pthread_mutex_destroy(tmp);
91 if ((err = pthread_mutex_lock(*mutex)))
96 if ((err = pthread_mutex_unlock(*mutex)))
100 case AV_LOCK_DESTROY:
102 pthread_mutex_destroy(*mutex);
104 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
109 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
111 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
115 volatile int ff_avcodec_locked;
116 static int volatile entangled_thread_counter = 0;
117 static void *codec_mutex;
118 static void *avformat_mutex;
120 #if FF_API_FAST_MALLOC && CONFIG_SHARED && HAVE_SYMVER
121 FF_SYMVER(void*, av_fast_realloc, (void *ptr, unsigned int *size, size_t min_size), "LIBAVCODEC_55")
123 return av_fast_realloc(ptr, size, min_size);
126 FF_SYMVER(void, av_fast_malloc, (void *ptr, unsigned int *size, size_t min_size), "LIBAVCODEC_55")
128 av_fast_malloc(ptr, size, min_size);
132 static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
135 if (min_size < *size)
137 min_size = FFMAX(17 * min_size / 16 + 32, min_size);
139 *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
146 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
149 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
154 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
155 memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
158 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
161 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
166 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
167 memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
170 /* encoder management */
171 static AVCodec *first_avcodec = NULL;
173 AVCodec *av_codec_next(const AVCodec *c)
178 return first_avcodec;
181 static av_cold void avcodec_init(void)
183 static int initialized = 0;
185 if (initialized != 0)
190 ff_dsputil_static_init();
193 int av_codec_is_encoder(const AVCodec *codec)
195 return codec && (codec->encode_sub || codec->encode2);
198 int av_codec_is_decoder(const AVCodec *codec)
200 return codec && codec->decode;
203 av_cold void avcodec_register(AVCodec *codec)
209 while(avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
212 if (codec->init_static_data)
213 codec->init_static_data(codec);
216 unsigned avcodec_get_edge_width(void)
221 #if FF_API_SET_DIMENSIONS
222 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
224 ff_set_dimensions(s, width, height);
228 int ff_set_dimensions(AVCodecContext *s, int width, int height)
230 int ret = av_image_check_size(width, height, 0, s);
235 s->coded_width = width;
236 s->coded_height = height;
237 s->width = FF_CEIL_RSHIFT(width, s->lowres);
238 s->height = FF_CEIL_RSHIFT(height, s->lowres);
243 #if HAVE_NEON || ARCH_PPC || HAVE_MMX
244 # define STRIDE_ALIGN 16
246 # define STRIDE_ALIGN 8
249 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
250 int linesize_align[AV_NUM_DATA_POINTERS])
256 switch (s->pix_fmt) {
257 case AV_PIX_FMT_YUV420P:
258 case AV_PIX_FMT_YUYV422:
259 case AV_PIX_FMT_UYVY422:
260 case AV_PIX_FMT_YUV422P:
261 case AV_PIX_FMT_YUV440P:
262 case AV_PIX_FMT_YUV444P:
263 case AV_PIX_FMT_GBRAP:
264 case AV_PIX_FMT_GBRP:
265 case AV_PIX_FMT_GRAY8:
266 case AV_PIX_FMT_GRAY16BE:
267 case AV_PIX_FMT_GRAY16LE:
268 case AV_PIX_FMT_YUVJ420P:
269 case AV_PIX_FMT_YUVJ422P:
270 case AV_PIX_FMT_YUVJ440P:
271 case AV_PIX_FMT_YUVJ444P:
272 case AV_PIX_FMT_YUVA420P:
273 case AV_PIX_FMT_YUVA422P:
274 case AV_PIX_FMT_YUVA444P:
275 case AV_PIX_FMT_YUV420P9LE:
276 case AV_PIX_FMT_YUV420P9BE:
277 case AV_PIX_FMT_YUV420P10LE:
278 case AV_PIX_FMT_YUV420P10BE:
279 case AV_PIX_FMT_YUV420P12LE:
280 case AV_PIX_FMT_YUV420P12BE:
281 case AV_PIX_FMT_YUV420P14LE:
282 case AV_PIX_FMT_YUV420P14BE:
283 case AV_PIX_FMT_YUV420P16LE:
284 case AV_PIX_FMT_YUV420P16BE:
285 case AV_PIX_FMT_YUV422P9LE:
286 case AV_PIX_FMT_YUV422P9BE:
287 case AV_PIX_FMT_YUV422P10LE:
288 case AV_PIX_FMT_YUV422P10BE:
289 case AV_PIX_FMT_YUV422P12LE:
290 case AV_PIX_FMT_YUV422P12BE:
291 case AV_PIX_FMT_YUV422P14LE:
292 case AV_PIX_FMT_YUV422P14BE:
293 case AV_PIX_FMT_YUV422P16LE:
294 case AV_PIX_FMT_YUV422P16BE:
295 case AV_PIX_FMT_YUV444P9LE:
296 case AV_PIX_FMT_YUV444P9BE:
297 case AV_PIX_FMT_YUV444P10LE:
298 case AV_PIX_FMT_YUV444P10BE:
299 case AV_PIX_FMT_YUV444P12LE:
300 case AV_PIX_FMT_YUV444P12BE:
301 case AV_PIX_FMT_YUV444P14LE:
302 case AV_PIX_FMT_YUV444P14BE:
303 case AV_PIX_FMT_YUV444P16LE:
304 case AV_PIX_FMT_YUV444P16BE:
305 case AV_PIX_FMT_YUVA420P9LE:
306 case AV_PIX_FMT_YUVA420P9BE:
307 case AV_PIX_FMT_YUVA420P10LE:
308 case AV_PIX_FMT_YUVA420P10BE:
309 case AV_PIX_FMT_YUVA420P16LE:
310 case AV_PIX_FMT_YUVA420P16BE:
311 case AV_PIX_FMT_YUVA422P9LE:
312 case AV_PIX_FMT_YUVA422P9BE:
313 case AV_PIX_FMT_YUVA422P10LE:
314 case AV_PIX_FMT_YUVA422P10BE:
315 case AV_PIX_FMT_YUVA422P16LE:
316 case AV_PIX_FMT_YUVA422P16BE:
317 case AV_PIX_FMT_YUVA444P9LE:
318 case AV_PIX_FMT_YUVA444P9BE:
319 case AV_PIX_FMT_YUVA444P10LE:
320 case AV_PIX_FMT_YUVA444P10BE:
321 case AV_PIX_FMT_YUVA444P16LE:
322 case AV_PIX_FMT_YUVA444P16BE:
323 case AV_PIX_FMT_GBRP9LE:
324 case AV_PIX_FMT_GBRP9BE:
325 case AV_PIX_FMT_GBRP10LE:
326 case AV_PIX_FMT_GBRP10BE:
327 case AV_PIX_FMT_GBRP12LE:
328 case AV_PIX_FMT_GBRP12BE:
329 case AV_PIX_FMT_GBRP14LE:
330 case AV_PIX_FMT_GBRP14BE:
331 w_align = 16; //FIXME assume 16 pixel per macroblock
332 h_align = 16 * 2; // interlaced needs 2 macroblocks height
334 case AV_PIX_FMT_YUV411P:
335 case AV_PIX_FMT_YUVJ411P:
336 case AV_PIX_FMT_UYYVYY411:
340 case AV_PIX_FMT_YUV410P:
341 if (s->codec_id == AV_CODEC_ID_SVQ1) {
346 case AV_PIX_FMT_RGB555:
347 if (s->codec_id == AV_CODEC_ID_RPZA) {
352 case AV_PIX_FMT_PAL8:
353 case AV_PIX_FMT_BGR8:
354 case AV_PIX_FMT_RGB8:
355 if (s->codec_id == AV_CODEC_ID_SMC ||
356 s->codec_id == AV_CODEC_ID_CINEPAK) {
361 case AV_PIX_FMT_BGR24:
362 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
363 (s->codec_id == AV_CODEC_ID_ZLIB)) {
368 case AV_PIX_FMT_RGB24:
369 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
380 if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) {
381 w_align = FFMAX(w_align, 8);
384 *width = FFALIGN(*width, w_align);
385 *height = FFALIGN(*height, h_align);
386 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres)
387 // some of the optimized chroma MC reads one line too much
388 // which is also done in mpeg decoders with lowres > 0
391 for (i = 0; i < 4; i++)
392 linesize_align[i] = STRIDE_ALIGN;
395 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
397 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
398 int chroma_shift = desc->log2_chroma_w;
399 int linesize_align[AV_NUM_DATA_POINTERS];
402 avcodec_align_dimensions2(s, width, height, linesize_align);
403 align = FFMAX(linesize_align[0], linesize_align[3]);
404 linesize_align[1] <<= chroma_shift;
405 linesize_align[2] <<= chroma_shift;
406 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
407 *width = FFALIGN(*width, align);
410 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
412 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
413 return AVERROR(EINVAL);
416 *xpos = (pos&1) * 128;
417 *ypos = ((pos>>1)^(pos<4)) * 128;
422 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
426 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
427 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
430 return AVCHROMA_LOC_UNSPECIFIED;
433 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
434 enum AVSampleFormat sample_fmt, const uint8_t *buf,
435 int buf_size, int align)
437 int ch, planar, needed_size, ret = 0;
439 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
440 frame->nb_samples, sample_fmt,
442 if (buf_size < needed_size)
443 return AVERROR(EINVAL);
445 planar = av_sample_fmt_is_planar(sample_fmt);
446 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
447 if (!(frame->extended_data = av_mallocz(nb_channels *
448 sizeof(*frame->extended_data))))
449 return AVERROR(ENOMEM);
451 frame->extended_data = frame->data;
454 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
455 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
456 sample_fmt, align)) < 0) {
457 if (frame->extended_data != frame->data)
458 av_freep(&frame->extended_data);
461 if (frame->extended_data != frame->data) {
462 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
463 frame->data[ch] = frame->extended_data[ch];
469 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
471 FramePool *pool = avctx->internal->pool;
474 switch (avctx->codec_type) {
475 case AVMEDIA_TYPE_VIDEO: {
478 int w = frame->width;
479 int h = frame->height;
480 int tmpsize, unaligned;
482 if (pool->format == frame->format &&
483 pool->width == frame->width && pool->height == frame->height)
486 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
488 if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
494 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
495 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
496 av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w);
497 // increase alignment of w for next try (rhs gives the lowest bit set in w)
501 for (i = 0; i < 4; i++)
502 unaligned |= picture.linesize[i] % pool->stride_align[i];
505 tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h,
506 NULL, picture.linesize);
510 for (i = 0; i < 3 && picture.data[i + 1]; i++)
511 size[i] = picture.data[i + 1] - picture.data[i];
512 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
514 for (i = 0; i < 4; i++) {
515 av_buffer_pool_uninit(&pool->pools[i]);
516 pool->linesize[i] = picture.linesize[i];
518 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
519 CONFIG_MEMORY_POISONING ?
522 if (!pool->pools[i]) {
523 ret = AVERROR(ENOMEM);
528 pool->format = frame->format;
529 pool->width = frame->width;
530 pool->height = frame->height;
534 case AVMEDIA_TYPE_AUDIO: {
535 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
536 int planar = av_sample_fmt_is_planar(frame->format);
537 int planes = planar ? ch : 1;
539 if (pool->format == frame->format && pool->planes == planes &&
540 pool->channels == ch && frame->nb_samples == pool->samples)
543 av_buffer_pool_uninit(&pool->pools[0]);
544 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
545 frame->nb_samples, frame->format, 0);
549 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
550 if (!pool->pools[0]) {
551 ret = AVERROR(ENOMEM);
555 pool->format = frame->format;
556 pool->planes = planes;
558 pool->samples = frame->nb_samples;
561 default: av_assert0(0);
565 for (i = 0; i < 4; i++)
566 av_buffer_pool_uninit(&pool->pools[i]);
568 pool->planes = pool->channels = pool->samples = 0;
569 pool->width = pool->height = 0;
573 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
575 FramePool *pool = avctx->internal->pool;
576 int planes = pool->planes;
579 frame->linesize[0] = pool->linesize[0];
581 if (planes > AV_NUM_DATA_POINTERS) {
582 frame->extended_data = av_mallocz(planes * sizeof(*frame->extended_data));
583 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
584 frame->extended_buf = av_mallocz(frame->nb_extended_buf *
585 sizeof(*frame->extended_buf));
586 if (!frame->extended_data || !frame->extended_buf) {
587 av_freep(&frame->extended_data);
588 av_freep(&frame->extended_buf);
589 return AVERROR(ENOMEM);
592 frame->extended_data = frame->data;
593 av_assert0(frame->nb_extended_buf == 0);
596 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
597 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
600 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
602 for (i = 0; i < frame->nb_extended_buf; i++) {
603 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
604 if (!frame->extended_buf[i])
606 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
609 if (avctx->debug & FF_DEBUG_BUFFERS)
610 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
614 av_frame_unref(frame);
615 return AVERROR(ENOMEM);
618 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
620 FramePool *pool = s->internal->pool;
621 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
622 int pixel_size = desc->comp[0].step_minus1 + 1;
623 int h_chroma_shift, v_chroma_shift;
626 if (pic->data[0] != NULL) {
627 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
631 memset(pic->data, 0, sizeof(pic->data));
632 pic->extended_data = pic->data;
634 av_pix_fmt_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
636 for (i = 0; i < 4 && pool->pools[i]; i++) {
637 const int h_shift = i == 0 ? 0 : h_chroma_shift;
638 const int v_shift = i == 0 ? 0 : v_chroma_shift;
639 int is_planar = pool->pools[2] || (i==0 && s->pix_fmt == AV_PIX_FMT_GRAY8);
641 pic->linesize[i] = pool->linesize[i];
643 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
647 // no edge if EDGE EMU or not planar YUV
648 if ((s->flags & CODEC_FLAG_EMU_EDGE) || !is_planar)
649 pic->data[i] = pic->buf[i]->data;
651 pic->data[i] = pic->buf[i]->data +
652 FFALIGN((pic->linesize[i] * EDGE_WIDTH >> v_shift) +
653 (pixel_size * EDGE_WIDTH >> h_shift), pool->stride_align[i]);
656 for (; i < AV_NUM_DATA_POINTERS; i++) {
658 pic->linesize[i] = 0;
660 if (pic->data[1] && !pic->data[2])
661 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
663 if (s->debug & FF_DEBUG_BUFFERS)
664 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
669 return AVERROR(ENOMEM);
672 void avpriv_color_frame(AVFrame *frame, const int c[4])
674 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
677 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
679 for (p = 0; p<desc->nb_components; p++) {
680 uint8_t *dst = frame->data[p];
681 int is_chroma = p == 1 || p == 2;
682 int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
683 int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
684 for (y = 0; y < height; y++) {
685 if (desc->comp[0].depth_minus1 >= 8) {
686 for (x = 0; x<bytes; x++)
687 ((uint16_t*)dst)[x] = c[p];
689 memset(dst, c[p], bytes);
690 dst += frame->linesize[p];
695 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
699 if ((ret = update_frame_pool(avctx, frame)) < 0)
702 #if FF_API_GET_BUFFER
703 FF_DISABLE_DEPRECATION_WARNINGS
704 frame->type = FF_BUFFER_TYPE_INTERNAL;
705 FF_ENABLE_DEPRECATION_WARNINGS
708 switch (avctx->codec_type) {
709 case AVMEDIA_TYPE_VIDEO:
710 return video_get_buffer(avctx, frame);
711 case AVMEDIA_TYPE_AUDIO:
712 return audio_get_buffer(avctx, frame);
718 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
720 if (avctx->internal->pkt) {
721 frame->pkt_pts = avctx->internal->pkt->pts;
722 av_frame_set_pkt_pos (frame, avctx->internal->pkt->pos);
723 av_frame_set_pkt_duration(frame, avctx->internal->pkt->duration);
724 av_frame_set_pkt_size (frame, avctx->internal->pkt->size);
726 frame->pkt_pts = AV_NOPTS_VALUE;
727 av_frame_set_pkt_pos (frame, -1);
728 av_frame_set_pkt_duration(frame, 0);
729 av_frame_set_pkt_size (frame, -1);
731 frame->reordered_opaque = avctx->reordered_opaque;
733 switch (avctx->codec->type) {
734 case AVMEDIA_TYPE_VIDEO:
735 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
736 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
737 if (frame->format < 0)
738 frame->format = avctx->pix_fmt;
739 if (!frame->sample_aspect_ratio.num)
740 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
741 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
742 av_frame_set_colorspace(frame, avctx->colorspace);
743 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
744 av_frame_set_color_range(frame, avctx->color_range);
746 case AVMEDIA_TYPE_AUDIO:
747 if (!frame->sample_rate)
748 frame->sample_rate = avctx->sample_rate;
749 if (frame->format < 0)
750 frame->format = avctx->sample_fmt;
751 if (!frame->channel_layout) {
752 if (avctx->channel_layout) {
753 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
755 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
757 return AVERROR(EINVAL);
760 frame->channel_layout = avctx->channel_layout;
762 if (avctx->channels > FF_SANE_NB_CHANNELS) {
763 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
765 return AVERROR(ENOSYS);
769 av_frame_set_channels(frame, avctx->channels);
775 #if FF_API_GET_BUFFER
776 FF_DISABLE_DEPRECATION_WARNINGS
777 int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
779 return avcodec_default_get_buffer2(avctx, frame, 0);
782 typedef struct CompatReleaseBufPriv {
783 AVCodecContext avctx;
785 } CompatReleaseBufPriv;
787 static void compat_free_buffer(void *opaque, uint8_t *data)
789 CompatReleaseBufPriv *priv = opaque;
790 if (priv->avctx.release_buffer)
791 priv->avctx.release_buffer(&priv->avctx, &priv->frame);
795 static void compat_release_buffer(void *opaque, uint8_t *data)
797 AVBufferRef *buf = opaque;
798 av_buffer_unref(&buf);
800 FF_ENABLE_DEPRECATION_WARNINGS
803 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
807 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
808 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
809 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
810 return AVERROR(EINVAL);
813 if ((ret = ff_init_buffer_info(avctx, frame)) < 0)
816 #if FF_API_GET_BUFFER
817 FF_DISABLE_DEPRECATION_WARNINGS
819 * Wrap an old get_buffer()-allocated buffer in a bunch of AVBuffers.
820 * We wrap each plane in its own AVBuffer. Each of those has a reference to
821 * a dummy AVBuffer as its private data, unreffing it on free.
822 * When all the planes are freed, the dummy buffer's free callback calls
825 if (avctx->get_buffer) {
826 CompatReleaseBufPriv *priv = NULL;
827 AVBufferRef *dummy_buf = NULL;
830 if (flags & AV_GET_BUFFER_FLAG_REF)
831 frame->reference = 1;
833 ret = avctx->get_buffer(avctx, frame);
837 /* return if the buffers are already set up
838 * this would happen e.g. when a custom get_buffer() calls
839 * avcodec_default_get_buffer
844 priv = av_mallocz(sizeof(*priv));
846 ret = AVERROR(ENOMEM);
849 priv->avctx = *avctx;
850 priv->frame = *frame;
852 dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0);
854 ret = AVERROR(ENOMEM);
858 #define WRAP_PLANE(ref_out, data, data_size) \
860 AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \
862 ret = AVERROR(ENOMEM); \
865 ref_out = av_buffer_create(data, data_size, compat_release_buffer, \
868 av_frame_unref(frame); \
869 ret = AVERROR(ENOMEM); \
874 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
875 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
877 planes = av_pix_fmt_count_planes(frame->format);
878 /* workaround for AVHWAccel plane count of 0, buf[0] is used as
879 check for allocated buffers: make libavcodec happy */
880 if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
882 if (!desc || planes <= 0) {
883 ret = AVERROR(EINVAL);
887 for (i = 0; i < planes; i++) {
888 int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
889 int plane_size = (frame->height >> v_shift) * frame->linesize[i];
891 WRAP_PLANE(frame->buf[i], frame->data[i], plane_size);
894 int planar = av_sample_fmt_is_planar(frame->format);
895 planes = planar ? avctx->channels : 1;
897 if (planes > FF_ARRAY_ELEMS(frame->buf)) {
898 frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf);
899 frame->extended_buf = av_malloc(sizeof(*frame->extended_buf) *
900 frame->nb_extended_buf);
901 if (!frame->extended_buf) {
902 ret = AVERROR(ENOMEM);
907 for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++)
908 WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]);
910 for (i = 0; i < frame->nb_extended_buf; i++)
911 WRAP_PLANE(frame->extended_buf[i],
912 frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)],
916 av_buffer_unref(&dummy_buf);
919 frame->width = avctx->width;
920 frame->height = avctx->height;
925 avctx->release_buffer(avctx, frame);
927 av_buffer_unref(&dummy_buf);
930 FF_ENABLE_DEPRECATION_WARNINGS
933 ret = avctx->get_buffer2(avctx, frame, flags);
935 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
936 frame->width = avctx->width;
937 frame->height = avctx->height;
943 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
945 int ret = get_buffer_internal(avctx, frame, flags);
947 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
951 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
956 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
958 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
959 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
960 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
961 av_frame_unref(frame);
964 ff_init_buffer_info(avctx, frame);
967 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
969 if (av_frame_is_writable(frame))
972 av_frame_move_ref(&tmp, frame);
974 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
976 av_frame_unref(&tmp);
980 av_image_copy(frame->data, frame->linesize, tmp.data, tmp.linesize,
981 frame->format, frame->width, frame->height);
983 av_frame_unref(&tmp);
988 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
990 int ret = reget_buffer_internal(avctx, frame);
992 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
996 #if FF_API_GET_BUFFER
997 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
999 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
1001 av_frame_unref(pic);
1004 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
1011 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
1015 for (i = 0; i < count; i++) {
1016 int r = func(c, (char *)arg + i * size);
1023 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
1027 for (i = 0; i < count; i++) {
1028 int r = func(c, arg, i, 0);
1035 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
1037 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1038 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1041 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
1043 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1048 void avcodec_get_frame_defaults(AVFrame *frame)
1050 #if LIBAVCODEC_VERSION_MAJOR >= 55
1051 // extended_data should explicitly be freed when needed, this code is unsafe currently
1052 // also this is not compatible to the <55 ABI/API
1053 if (frame->extended_data != frame->data && 0)
1054 av_freep(&frame->extended_data);
1057 memset(frame, 0, sizeof(AVFrame));
1061 frame->pkt_pts = AV_NOPTS_VALUE;
1062 av_frame_set_best_effort_timestamp(frame, AV_NOPTS_VALUE);
1063 av_frame_set_pkt_duration (frame, 0);
1064 av_frame_set_pkt_pos (frame, -1);
1065 av_frame_set_pkt_size (frame, -1);
1066 frame->key_frame = 1;
1067 frame->sample_aspect_ratio = (AVRational) {0, 1 };
1068 frame->format = -1; /* unknown */
1069 frame->extended_data = frame->data;
1070 av_frame_set_colorspace(frame, AVCOL_SPC_UNSPECIFIED);
1073 AVFrame *avcodec_alloc_frame(void)
1075 AVFrame *frame = av_malloc(sizeof(AVFrame));
1080 frame->extended_data = NULL;
1081 avcodec_get_frame_defaults(frame);
1086 void avcodec_free_frame(AVFrame **frame)
1090 if (!frame || !*frame)
1095 if (f->extended_data != f->data)
1096 av_freep(&f->extended_data);
1101 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1102 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1103 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1104 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1106 int av_codec_get_max_lowres(const AVCodec *codec)
1108 return codec->max_lowres;
1111 static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
1113 memset(sub, 0, sizeof(*sub));
1114 sub->pts = AV_NOPTS_VALUE;
1117 static int get_bit_rate(AVCodecContext *ctx)
1120 int bits_per_sample;
1122 switch (ctx->codec_type) {
1123 case AVMEDIA_TYPE_VIDEO:
1124 case AVMEDIA_TYPE_DATA:
1125 case AVMEDIA_TYPE_SUBTITLE:
1126 case AVMEDIA_TYPE_ATTACHMENT:
1127 bit_rate = ctx->bit_rate;
1129 case AVMEDIA_TYPE_AUDIO:
1130 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1131 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1140 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1144 ff_unlock_avcodec();
1146 ret = avcodec_open2(avctx, codec, options);
1148 ff_lock_avcodec(avctx);
1152 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1155 AVDictionary *tmp = NULL;
1157 if (avcodec_is_open(avctx))
1160 if ((!codec && !avctx->codec)) {
1161 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1162 return AVERROR(EINVAL);
1164 if ((codec && avctx->codec && codec != avctx->codec)) {
1165 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1166 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1167 return AVERROR(EINVAL);
1170 codec = avctx->codec;
1172 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1173 return AVERROR(EINVAL);
1176 av_dict_copy(&tmp, *options, 0);
1178 ret = ff_lock_avcodec(avctx);
1182 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1183 if (!avctx->internal) {
1184 ret = AVERROR(ENOMEM);
1188 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1189 if (!avctx->internal->pool) {
1190 ret = AVERROR(ENOMEM);
1194 if (codec->priv_data_size > 0) {
1195 if (!avctx->priv_data) {
1196 avctx->priv_data = av_mallocz(codec->priv_data_size);
1197 if (!avctx->priv_data) {
1198 ret = AVERROR(ENOMEM);
1201 if (codec->priv_class) {
1202 *(const AVClass **)avctx->priv_data = codec->priv_class;
1203 av_opt_set_defaults(avctx->priv_data);
1206 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1209 avctx->priv_data = NULL;
1211 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1214 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1215 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1216 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1217 if (avctx->coded_width && avctx->coded_height)
1218 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1219 else if (avctx->width && avctx->height)
1220 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1225 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1226 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1227 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1228 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1229 ff_set_dimensions(avctx, 0, 0);
1232 /* if the decoder init function was already called previously,
1233 * free the already allocated subtitle_header before overwriting it */
1234 if (av_codec_is_decoder(codec))
1235 av_freep(&avctx->subtitle_header);
1237 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1238 ret = AVERROR(EINVAL);
1242 avctx->codec = codec;
1243 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1244 avctx->codec_id == AV_CODEC_ID_NONE) {
1245 avctx->codec_type = codec->type;
1246 avctx->codec_id = codec->id;
1248 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1249 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1250 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1251 ret = AVERROR(EINVAL);
1254 avctx->frame_number = 0;
1255 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1257 if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1258 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1259 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1261 av_log(avctx, AV_LOG_ERROR,
1262 "The %s '%s' is experimental but experimental codecs are not enabled, "
1263 "add '-strict %d' if you want to use it.\n",
1264 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1265 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1266 if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
1267 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1268 codec_string, codec2->name);
1269 ret = AVERROR_EXPERIMENTAL;
1273 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1274 (!avctx->time_base.num || !avctx->time_base.den)) {
1275 avctx->time_base.num = 1;
1276 avctx->time_base.den = avctx->sample_rate;
1280 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1282 if (CONFIG_FRAME_THREAD_ENCODER) {
1283 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1284 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1285 ff_lock_avcodec(avctx);
1291 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1292 ret = ff_thread_init(avctx);
1297 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
1298 avctx->thread_count = 1;
1300 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1301 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1302 avctx->codec->max_lowres);
1303 ret = AVERROR(EINVAL);
1307 if (av_codec_is_encoder(avctx->codec)) {
1309 if (avctx->codec->sample_fmts) {
1310 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1311 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1313 if (avctx->channels == 1 &&
1314 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1315 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1316 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1320 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1322 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1323 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1324 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1325 ret = AVERROR(EINVAL);
1329 if (avctx->codec->pix_fmts) {
1330 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1331 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1333 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1334 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1335 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1337 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1338 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1339 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1340 ret = AVERROR(EINVAL);
1344 if (avctx->codec->supported_samplerates) {
1345 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1346 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1348 if (avctx->codec->supported_samplerates[i] == 0) {
1349 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1350 avctx->sample_rate);
1351 ret = AVERROR(EINVAL);
1355 if (avctx->codec->channel_layouts) {
1356 if (!avctx->channel_layout) {
1357 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1359 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1360 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1362 if (avctx->codec->channel_layouts[i] == 0) {
1364 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1365 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1366 ret = AVERROR(EINVAL);
1371 if (avctx->channel_layout && avctx->channels) {
1372 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1373 if (channels != avctx->channels) {
1375 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1376 av_log(avctx, AV_LOG_ERROR,
1377 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1378 buf, channels, avctx->channels);
1379 ret = AVERROR(EINVAL);
1382 } else if (avctx->channel_layout) {
1383 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1385 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1386 avctx->codec_id != AV_CODEC_ID_PNG // For mplayer
1388 if (avctx->width <= 0 || avctx->height <= 0) {
1389 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1390 ret = AVERROR(EINVAL);
1394 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1395 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1396 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1399 if (!avctx->rc_initial_buffer_occupancy)
1400 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1403 avctx->pts_correction_num_faulty_pts =
1404 avctx->pts_correction_num_faulty_dts = 0;
1405 avctx->pts_correction_last_pts =
1406 avctx->pts_correction_last_dts = INT64_MIN;
1408 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1409 || avctx->internal->frame_thread_encoder)) {
1410 ret = avctx->codec->init(avctx);
1418 if (av_codec_is_decoder(avctx->codec)) {
1419 if (!avctx->bit_rate)
1420 avctx->bit_rate = get_bit_rate(avctx);
1421 /* validate channel layout from the decoder */
1422 if (avctx->channel_layout) {
1423 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1424 if (!avctx->channels)
1425 avctx->channels = channels;
1426 else if (channels != avctx->channels) {
1428 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1429 av_log(avctx, AV_LOG_WARNING,
1430 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1431 "ignoring specified channel layout\n",
1432 buf, channels, avctx->channels);
1433 avctx->channel_layout = 0;
1436 if (avctx->channels && avctx->channels < 0 ||
1437 avctx->channels > FF_SANE_NB_CHANNELS) {
1438 ret = AVERROR(EINVAL);
1441 if (avctx->sub_charenc) {
1442 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1443 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1444 "supported with subtitles codecs\n");
1445 ret = AVERROR(EINVAL);
1447 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1448 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1449 "subtitles character encoding will be ignored\n",
1450 avctx->codec_descriptor->name);
1451 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1453 /* input character encoding is set for a text based subtitle
1454 * codec at this point */
1455 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1456 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1458 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1460 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1461 if (cd == (iconv_t)-1) {
1462 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1463 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1464 ret = AVERROR(errno);
1469 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1470 "conversion needs a libavcodec built with iconv support "
1471 "for this codec\n");
1472 ret = AVERROR(ENOSYS);
1480 ff_unlock_avcodec();
1482 av_dict_free(options);
1489 av_freep(&avctx->priv_data);
1490 if (avctx->internal)
1491 av_freep(&avctx->internal->pool);
1492 av_freep(&avctx->internal);
1493 avctx->codec = NULL;
1497 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
1499 if (avpkt->size < 0) {
1500 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1501 return AVERROR(EINVAL);
1503 if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1504 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1505 size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
1506 return AVERROR(EINVAL);
1510 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1511 if (!avpkt->data || avpkt->size < size) {
1512 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1513 avpkt->data = avctx->internal->byte_buffer;
1514 avpkt->size = avctx->internal->byte_buffer_size;
1515 avpkt->destruct = NULL;
1520 AVBufferRef *buf = avpkt->buf;
1521 #if FF_API_DESTRUCT_PACKET
1522 FF_DISABLE_DEPRECATION_WARNINGS
1523 void *destruct = avpkt->destruct;
1524 FF_ENABLE_DEPRECATION_WARNINGS
1527 if (avpkt->size < size) {
1528 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1529 return AVERROR(EINVAL);
1532 av_init_packet(avpkt);
1533 #if FF_API_DESTRUCT_PACKET
1534 FF_DISABLE_DEPRECATION_WARNINGS
1535 avpkt->destruct = destruct;
1536 FF_ENABLE_DEPRECATION_WARNINGS
1542 int ret = av_new_packet(avpkt, size);
1544 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1549 int ff_alloc_packet(AVPacket *avpkt, int size)
1551 return ff_alloc_packet2(NULL, avpkt, size);
1555 * Pad last frame with silence.
1557 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1559 AVFrame *frame = NULL;
1562 if (!(frame = avcodec_alloc_frame()))
1563 return AVERROR(ENOMEM);
1565 frame->format = src->format;
1566 frame->channel_layout = src->channel_layout;
1567 av_frame_set_channels(frame, av_frame_get_channels(src));
1568 frame->nb_samples = s->frame_size;
1569 ret = av_frame_get_buffer(frame, 32);
1573 ret = av_frame_copy_props(frame, src);
1577 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1578 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1580 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1581 frame->nb_samples - src->nb_samples,
1582 s->channels, s->sample_fmt)) < 0)
1590 av_frame_free(&frame);
1594 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1596 const AVFrame *frame,
1597 int *got_packet_ptr)
1600 AVFrame *padded_frame = NULL;
1602 AVPacket user_pkt = *avpkt;
1603 int needs_realloc = !user_pkt.data;
1605 *got_packet_ptr = 0;
1607 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1608 av_free_packet(avpkt);
1609 av_init_packet(avpkt);
1613 /* ensure that extended_data is properly set */
1614 if (frame && !frame->extended_data) {
1615 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1616 avctx->channels > AV_NUM_DATA_POINTERS) {
1617 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1618 "with more than %d channels, but extended_data is not set.\n",
1619 AV_NUM_DATA_POINTERS);
1620 return AVERROR(EINVAL);
1622 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1625 tmp.extended_data = tmp.data;
1629 /* check for valid frame size */
1631 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1632 if (frame->nb_samples > avctx->frame_size) {
1633 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1634 return AVERROR(EINVAL);
1636 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1637 if (frame->nb_samples < avctx->frame_size &&
1638 !avctx->internal->last_audio_frame) {
1639 ret = pad_last_frame(avctx, &padded_frame, frame);
1643 frame = padded_frame;
1644 avctx->internal->last_audio_frame = 1;
1647 if (frame->nb_samples != avctx->frame_size) {
1648 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1649 ret = AVERROR(EINVAL);
1655 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1657 if (*got_packet_ptr) {
1658 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1659 if (avpkt->pts == AV_NOPTS_VALUE)
1660 avpkt->pts = frame->pts;
1661 if (!avpkt->duration)
1662 avpkt->duration = ff_samples_to_time_base(avctx,
1665 avpkt->dts = avpkt->pts;
1670 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1672 if (user_pkt.data) {
1673 if (user_pkt.size >= avpkt->size) {
1674 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1676 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1677 avpkt->size = user_pkt.size;
1680 avpkt->buf = user_pkt.buf;
1681 avpkt->data = user_pkt.data;
1682 avpkt->destruct = user_pkt.destruct;
1684 if (av_dup_packet(avpkt) < 0) {
1685 ret = AVERROR(ENOMEM);
1691 if (needs_realloc && avpkt->data) {
1692 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1694 avpkt->data = avpkt->buf->data;
1697 avctx->frame_number++;
1700 if (ret < 0 || !*got_packet_ptr) {
1701 av_free_packet(avpkt);
1702 av_init_packet(avpkt);
1706 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1707 * this needs to be moved to the encoders, but for now we can do it
1708 * here to simplify things */
1709 avpkt->flags |= AV_PKT_FLAG_KEY;
1712 av_frame_free(&padded_frame);
1717 #if FF_API_OLD_ENCODE_AUDIO
1718 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
1719 uint8_t *buf, int buf_size,
1720 const short *samples)
1723 AVFrame frame0 = { { 0 } };
1725 int ret, samples_size, got_packet;
1727 av_init_packet(&pkt);
1729 pkt.size = buf_size;
1733 avcodec_get_frame_defaults(frame);
1735 if (avctx->frame_size) {
1736 frame->nb_samples = avctx->frame_size;
1738 /* if frame_size is not set, the number of samples must be
1739 * calculated from the buffer size */
1741 if (!av_get_bits_per_sample(avctx->codec_id)) {
1742 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
1743 "support this codec\n");
1744 return AVERROR(EINVAL);
1746 nb_samples = (int64_t)buf_size * 8 /
1747 (av_get_bits_per_sample(avctx->codec_id) *
1749 if (nb_samples >= INT_MAX)
1750 return AVERROR(EINVAL);
1751 frame->nb_samples = nb_samples;
1754 /* it is assumed that the samples buffer is large enough based on the
1755 * relevant parameters */
1756 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
1758 avctx->sample_fmt, 1);
1759 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
1761 (const uint8_t *)samples,
1762 samples_size, 1)) < 0)
1765 /* fabricate frame pts from sample count.
1766 * this is needed because the avcodec_encode_audio() API does not have
1767 * a way for the user to provide pts */
1768 if (avctx->sample_rate && avctx->time_base.num)
1769 frame->pts = ff_samples_to_time_base(avctx,
1770 avctx->internal->sample_count);
1772 frame->pts = AV_NOPTS_VALUE;
1773 avctx->internal->sample_count += frame->nb_samples;
1779 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
1780 if (!ret && got_packet && avctx->coded_frame) {
1781 avctx->coded_frame->pts = pkt.pts;
1782 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1784 /* free any side data since we cannot return it */
1785 av_packet_free_side_data(&pkt);
1787 if (frame && frame->extended_data != frame->data)
1788 av_freep(&frame->extended_data);
1790 return ret ? ret : pkt.size;
1795 #if FF_API_OLD_ENCODE_VIDEO
1796 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1797 const AVFrame *pict)
1800 int ret, got_packet = 0;
1802 if (buf_size < FF_MIN_BUFFER_SIZE) {
1803 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
1807 av_init_packet(&pkt);
1809 pkt.size = buf_size;
1811 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
1812 if (!ret && got_packet && avctx->coded_frame) {
1813 avctx->coded_frame->pts = pkt.pts;
1814 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1817 /* free any side data since we cannot return it */
1818 if (pkt.side_data_elems > 0) {
1820 for (i = 0; i < pkt.side_data_elems; i++)
1821 av_free(pkt.side_data[i].data);
1822 av_freep(&pkt.side_data);
1823 pkt.side_data_elems = 0;
1826 return ret ? ret : pkt.size;
1831 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1833 const AVFrame *frame,
1834 int *got_packet_ptr)
1837 AVPacket user_pkt = *avpkt;
1838 int needs_realloc = !user_pkt.data;
1840 *got_packet_ptr = 0;
1842 if(CONFIG_FRAME_THREAD_ENCODER &&
1843 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1844 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1846 if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
1847 avctx->stats_out[0] = '\0';
1849 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1850 av_free_packet(avpkt);
1851 av_init_packet(avpkt);
1856 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1857 return AVERROR(EINVAL);
1859 av_assert0(avctx->codec->encode2);
1861 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1862 av_assert0(ret <= 0);
1864 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1866 if (user_pkt.data) {
1867 if (user_pkt.size >= avpkt->size) {
1868 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1870 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1871 avpkt->size = user_pkt.size;
1874 avpkt->buf = user_pkt.buf;
1875 avpkt->data = user_pkt.data;
1876 avpkt->destruct = user_pkt.destruct;
1878 if (av_dup_packet(avpkt) < 0) {
1879 ret = AVERROR(ENOMEM);
1885 if (!*got_packet_ptr)
1887 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
1888 avpkt->pts = avpkt->dts = frame->pts;
1890 if (needs_realloc && avpkt->data) {
1891 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1893 avpkt->data = avpkt->buf->data;
1896 avctx->frame_number++;
1899 if (ret < 0 || !*got_packet_ptr)
1900 av_free_packet(avpkt);
1902 av_packet_merge_side_data(avpkt);
1908 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1909 const AVSubtitle *sub)
1912 if (sub->start_display_time) {
1913 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
1917 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
1918 avctx->frame_number++;
1923 * Attempt to guess proper monotonic timestamps for decoded video frames
1924 * which might have incorrect times. Input timestamps may wrap around, in
1925 * which case the output will as well.
1927 * @param pts the pts field of the decoded AVPacket, as passed through
1929 * @param dts the dts field of the decoded AVPacket
1930 * @return one of the input values, may be AV_NOPTS_VALUE
1932 static int64_t guess_correct_pts(AVCodecContext *ctx,
1933 int64_t reordered_pts, int64_t dts)
1935 int64_t pts = AV_NOPTS_VALUE;
1937 if (dts != AV_NOPTS_VALUE) {
1938 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
1939 ctx->pts_correction_last_dts = dts;
1941 if (reordered_pts != AV_NOPTS_VALUE) {
1942 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
1943 ctx->pts_correction_last_pts = reordered_pts;
1945 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
1946 && reordered_pts != AV_NOPTS_VALUE)
1947 pts = reordered_pts;
1954 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
1957 const uint8_t *data;
1960 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
1964 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) {
1965 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
1966 "changes, but PARAM_CHANGE side data was sent to it.\n");
1967 return AVERROR(EINVAL);
1973 flags = bytestream_get_le32(&data);
1976 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
1979 avctx->channels = bytestream_get_le32(&data);
1982 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
1985 avctx->channel_layout = bytestream_get_le64(&data);
1988 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
1991 avctx->sample_rate = bytestream_get_le32(&data);
1994 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
1997 avctx->width = bytestream_get_le32(&data);
1998 avctx->height = bytestream_get_le32(&data);
2000 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2007 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2008 return AVERROR_INVALIDDATA;
2011 static int add_metadata_from_side_data(AVCodecContext *avctx, AVFrame *frame)
2014 const uint8_t *side_metadata;
2017 side_metadata = av_packet_get_side_data(avctx->internal->pkt,
2018 AV_PKT_DATA_STRINGS_METADATA, &size);
2021 end = side_metadata + size;
2022 if (size && end[-1])
2023 return AVERROR_INVALIDDATA;
2024 while (side_metadata < end) {
2025 const uint8_t *key = side_metadata;
2026 const uint8_t *val = side_metadata + strlen(key) + 1;
2030 return AVERROR_INVALIDDATA;
2032 ret = av_dict_set(avpriv_frame_get_metadatap(frame), key, val, 0);
2035 side_metadata = val + strlen(val) + 1;
2041 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2042 int *got_picture_ptr,
2043 const AVPacket *avpkt)
2045 AVCodecInternal *avci = avctx->internal;
2047 // copy to ensure we do not change avpkt
2048 AVPacket tmp = *avpkt;
2051 return AVERROR(EINVAL);
2052 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2053 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2054 return AVERROR(EINVAL);
2057 *got_picture_ptr = 0;
2058 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2059 return AVERROR(EINVAL);
2061 avcodec_get_frame_defaults(picture);
2063 if (!avctx->refcounted_frames)
2064 av_frame_unref(&avci->to_free);
2066 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2067 int did_split = av_packet_split_side_data(&tmp);
2068 ret = apply_param_change(avctx, &tmp);
2070 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2071 if (avctx->err_recognition & AV_EF_EXPLODE)
2075 avctx->internal->pkt = &tmp;
2076 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2077 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2080 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2082 picture->pkt_dts = avpkt->dts;
2084 if(!avctx->has_b_frames){
2085 av_frame_set_pkt_pos(picture, avpkt->pos);
2087 //FIXME these should be under if(!avctx->has_b_frames)
2088 /* get_buffer is supposed to set frame parameters */
2089 if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
2090 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2091 if (!picture->width) picture->width = avctx->width;
2092 if (!picture->height) picture->height = avctx->height;
2093 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2096 add_metadata_from_side_data(avctx, picture);
2099 emms_c(); //needed to avoid an emms_c() call before every return;
2101 avctx->internal->pkt = NULL;
2103 av_packet_free_side_data(&tmp);
2108 if (ret < 0 && picture->data[0])
2109 av_frame_unref(picture);
2111 if (*got_picture_ptr) {
2112 if (!avctx->refcounted_frames) {
2113 avci->to_free = *picture;
2114 avci->to_free.extended_data = avci->to_free.data;
2115 memset(picture->buf, 0, sizeof(picture->buf));
2118 avctx->frame_number++;
2119 av_frame_set_best_effort_timestamp(picture,
2120 guess_correct_pts(avctx,
2127 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2128 * make sure it's set correctly */
2129 picture->extended_data = picture->data;
2134 #if FF_API_OLD_DECODE_AUDIO
2135 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2136 int *frame_size_ptr,
2139 AVFrame frame = { { 0 } };
2140 int ret, got_frame = 0;
2142 if (avctx->get_buffer != avcodec_default_get_buffer) {
2143 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2144 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2145 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2146 "avcodec_decode_audio4()\n");
2147 avctx->get_buffer = avcodec_default_get_buffer;
2148 avctx->release_buffer = avcodec_default_release_buffer;
2151 ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt);
2153 if (ret >= 0 && got_frame) {
2155 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2156 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2158 avctx->sample_fmt, 1);
2159 if (*frame_size_ptr < data_size) {
2160 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2161 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2162 return AVERROR(EINVAL);
2165 memcpy(samples, frame.extended_data[0], plane_size);
2167 if (planar && avctx->channels > 1) {
2168 uint8_t *out = ((uint8_t *)samples) + plane_size;
2169 for (ch = 1; ch < avctx->channels; ch++) {
2170 memcpy(out, frame.extended_data[ch], plane_size);
2174 *frame_size_ptr = data_size;
2176 *frame_size_ptr = 0;
2183 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2186 const AVPacket *avpkt)
2188 AVCodecInternal *avci = avctx->internal;
2189 int planar, channels;
2194 if (!avpkt->data && avpkt->size) {
2195 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2196 return AVERROR(EINVAL);
2199 return AVERROR(EINVAL);
2200 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2201 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2202 return AVERROR(EINVAL);
2205 avcodec_get_frame_defaults(frame);
2207 if (!avctx->refcounted_frames)
2208 av_frame_unref(&avci->to_free);
2210 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2213 uint32_t discard_padding = 0;
2214 // copy to ensure we do not change avpkt
2215 AVPacket tmp = *avpkt;
2216 int did_split = av_packet_split_side_data(&tmp);
2217 ret = apply_param_change(avctx, &tmp);
2219 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2220 if (avctx->err_recognition & AV_EF_EXPLODE)
2224 avctx->internal->pkt = &tmp;
2225 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2226 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2228 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2229 frame->pkt_dts = avpkt->dts;
2231 if (ret >= 0 && *got_frame_ptr) {
2232 add_metadata_from_side_data(avctx, frame);
2233 avctx->frame_number++;
2234 av_frame_set_best_effort_timestamp(frame,
2235 guess_correct_pts(avctx,
2238 if (frame->format == AV_SAMPLE_FMT_NONE)
2239 frame->format = avctx->sample_fmt;
2240 if (!frame->channel_layout)
2241 frame->channel_layout = avctx->channel_layout;
2242 if (!av_frame_get_channels(frame))
2243 av_frame_set_channels(frame, avctx->channels);
2244 if (!frame->sample_rate)
2245 frame->sample_rate = avctx->sample_rate;
2248 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2249 if(side && side_size>=10) {
2250 avctx->internal->skip_samples = AV_RL32(side);
2251 av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n",
2252 avctx->internal->skip_samples);
2253 discard_padding = AV_RL32(side + 4);
2255 if (avctx->internal->skip_samples && *got_frame_ptr) {
2256 if(frame->nb_samples <= avctx->internal->skip_samples){
2258 avctx->internal->skip_samples -= frame->nb_samples;
2259 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2260 avctx->internal->skip_samples);
2262 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2263 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2264 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2265 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2266 (AVRational){1, avctx->sample_rate},
2267 avctx->pkt_timebase);
2268 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2269 frame->pkt_pts += diff_ts;
2270 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2271 frame->pkt_dts += diff_ts;
2272 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2273 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2275 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2277 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2278 avctx->internal->skip_samples, frame->nb_samples);
2279 frame->nb_samples -= avctx->internal->skip_samples;
2280 avctx->internal->skip_samples = 0;
2284 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr) {
2285 if (discard_padding == frame->nb_samples) {
2288 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2289 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2290 (AVRational){1, avctx->sample_rate},
2291 avctx->pkt_timebase);
2292 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2293 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2295 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2297 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2298 discard_padding, frame->nb_samples);
2299 frame->nb_samples -= discard_padding;
2303 avctx->internal->pkt = NULL;
2305 av_packet_free_side_data(&tmp);
2310 if (ret >= 0 && *got_frame_ptr) {
2311 if (!avctx->refcounted_frames) {
2312 avci->to_free = *frame;
2313 avci->to_free.extended_data = avci->to_free.data;
2314 memset(frame->buf, 0, sizeof(frame->buf));
2315 frame->extended_buf = NULL;
2316 frame->nb_extended_buf = 0;
2318 } else if (frame->data[0])
2319 av_frame_unref(frame);
2322 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2323 * make sure it's set correctly; assume decoders that actually use
2324 * extended_data are doing it correctly */
2325 if (*got_frame_ptr) {
2326 planar = av_sample_fmt_is_planar(frame->format);
2327 channels = av_frame_get_channels(frame);
2328 if (!(planar && channels > AV_NUM_DATA_POINTERS))
2329 frame->extended_data = frame->data;
2331 frame->extended_data = NULL;
2337 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2338 static int recode_subtitle(AVCodecContext *avctx,
2339 AVPacket *outpkt, const AVPacket *inpkt)
2342 iconv_t cd = (iconv_t)-1;
2349 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2353 cd = iconv_open("UTF-8", avctx->sub_charenc);
2354 av_assert0(cd != (iconv_t)-1);
2359 if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) {
2360 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2361 ret = AVERROR(ENOMEM);
2365 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2368 outpkt->buf = tmp.buf;
2369 outpkt->data = tmp.data;
2370 outpkt->size = tmp.size;
2371 outb = outpkt->data;
2372 outl = outpkt->size;
2374 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2375 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2376 outl >= outpkt->size || inl != 0) {
2377 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2378 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2379 av_free_packet(&tmp);
2380 ret = AVERROR(errno);
2383 outpkt->size -= outl;
2384 memset(outpkt->data + outpkt->size, 0, outl);
2387 if (cd != (iconv_t)-1)
2391 av_assert0(!"requesting subtitles recoding without iconv");
2395 static int utf8_check(const uint8_t *str)
2397 const uint8_t *byte;
2398 uint32_t codepoint, min;
2402 GET_UTF8(codepoint, *(byte++), return 0;);
2403 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2404 1 << (5 * (byte - str) - 4);
2405 if (codepoint < min || codepoint >= 0x110000 ||
2406 codepoint == 0xFFFE /* BOM */ ||
2407 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2414 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2420 if (!avpkt->data && avpkt->size) {
2421 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2422 return AVERROR(EINVAL);
2425 return AVERROR(EINVAL);
2426 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2427 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2428 return AVERROR(EINVAL);
2432 avcodec_get_subtitle_defaults(sub);
2434 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
2435 AVPacket pkt_recoded;
2436 AVPacket tmp = *avpkt;
2437 int did_split = av_packet_split_side_data(&tmp);
2438 //apply_param_change(avctx, &tmp);
2441 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2445 avctx->internal->pkt = &pkt_recoded;
2447 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2448 sub->pts = av_rescale_q(avpkt->pts,
2449 avctx->pkt_timebase, AV_TIME_BASE_Q);
2450 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2451 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2452 !!*got_sub_ptr >= !!sub->num_rects);
2454 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2455 avctx->pkt_timebase.num) {
2456 AVRational ms = { 1, 1000 };
2457 sub->end_display_time = av_rescale_q(avpkt->duration,
2458 avctx->pkt_timebase, ms);
2461 for (i = 0; i < sub->num_rects; i++) {
2462 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2463 av_log(avctx, AV_LOG_ERROR,
2464 "Invalid UTF-8 in decoded subtitles text; "
2465 "maybe missing -sub_charenc option\n");
2466 avsubtitle_free(sub);
2467 return AVERROR_INVALIDDATA;
2471 if (tmp.data != pkt_recoded.data) { // did we recode?
2472 /* prevent from destroying side data from original packet */
2473 pkt_recoded.side_data = NULL;
2474 pkt_recoded.side_data_elems = 0;
2476 av_free_packet(&pkt_recoded);
2478 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2480 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2482 avctx->internal->pkt = NULL;
2486 av_packet_free_side_data(&tmp);
2492 avctx->frame_number++;
2498 void avsubtitle_free(AVSubtitle *sub)
2502 for (i = 0; i < sub->num_rects; i++) {
2503 av_freep(&sub->rects[i]->pict.data[0]);
2504 av_freep(&sub->rects[i]->pict.data[1]);
2505 av_freep(&sub->rects[i]->pict.data[2]);
2506 av_freep(&sub->rects[i]->pict.data[3]);
2507 av_freep(&sub->rects[i]->text);
2508 av_freep(&sub->rects[i]->ass);
2509 av_freep(&sub->rects[i]);
2512 av_freep(&sub->rects);
2514 memset(sub, 0, sizeof(AVSubtitle));
2517 av_cold int ff_codec_close_recursive(AVCodecContext *avctx)
2521 ff_unlock_avcodec();
2523 ret = avcodec_close(avctx);
2525 ff_lock_avcodec(NULL);
2529 av_cold int avcodec_close(AVCodecContext *avctx)
2536 ret = ff_lock_avcodec(avctx);
2540 if (avcodec_is_open(avctx)) {
2541 FramePool *pool = avctx->internal->pool;
2543 if (CONFIG_FRAME_THREAD_ENCODER &&
2544 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2545 ff_unlock_avcodec();
2546 ff_frame_thread_encoder_free(avctx);
2547 ff_lock_avcodec(avctx);
2549 if (HAVE_THREADS && avctx->internal->thread_ctx)
2550 ff_thread_free(avctx);
2551 if (avctx->codec && avctx->codec->close)
2552 avctx->codec->close(avctx);
2553 avctx->coded_frame = NULL;
2554 avctx->internal->byte_buffer_size = 0;
2555 av_freep(&avctx->internal->byte_buffer);
2556 if (!avctx->refcounted_frames)
2557 av_frame_unref(&avctx->internal->to_free);
2558 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2559 av_buffer_pool_uninit(&pool->pools[i]);
2560 av_freep(&avctx->internal->pool);
2561 av_freep(&avctx->internal);
2564 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2565 av_opt_free(avctx->priv_data);
2567 av_freep(&avctx->priv_data);
2568 if (av_codec_is_encoder(avctx->codec))
2569 av_freep(&avctx->extradata);
2570 avctx->codec = NULL;
2571 avctx->active_thread_type = 0;
2573 ff_unlock_avcodec();
2577 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2580 //This is for future deprecatec codec ids, its empty since
2581 //last major bump but will fill up again over time, please don't remove it
2582 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2583 case AV_CODEC_ID_OPUS_DEPRECATED: return AV_CODEC_ID_OPUS;
2584 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2585 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2586 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2587 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2588 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2589 case AV_CODEC_ID_WEBP_DEPRECATED: return AV_CODEC_ID_WEBP;
2590 case AV_CODEC_ID_HEVC_DEPRECATED: return AV_CODEC_ID_HEVC;
2591 default : return id;
2595 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2597 AVCodec *p, *experimental = NULL;
2599 id= remap_deprecated_codec_id(id);
2601 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2603 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
2610 return experimental;
2613 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2615 return find_encdec(id, 1);
2618 AVCodec *avcodec_find_encoder_by_name(const char *name)
2625 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2632 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2634 return find_encdec(id, 0);
2637 AVCodec *avcodec_find_decoder_by_name(const char *name)
2644 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2651 const char *avcodec_get_name(enum AVCodecID id)
2653 const AVCodecDescriptor *cd;
2656 if (id == AV_CODEC_ID_NONE)
2658 cd = avcodec_descriptor_get(id);
2661 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2662 codec = avcodec_find_decoder(id);
2665 codec = avcodec_find_encoder(id);
2668 return "unknown_codec";
2671 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
2673 int i, len, ret = 0;
2675 #define TAG_PRINT(x) \
2676 (((x) >= '0' && (x) <= '9') || \
2677 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
2678 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
2680 for (i = 0; i < 4; i++) {
2681 len = snprintf(buf, buf_size,
2682 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
2684 buf_size = buf_size > len ? buf_size - len : 0;
2691 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
2693 const char *codec_type;
2694 const char *codec_name;
2695 const char *profile = NULL;
2698 AVRational display_aspect_ratio;
2700 if (!buf || buf_size <= 0)
2702 codec_type = av_get_media_type_string(enc->codec_type);
2703 codec_name = avcodec_get_name(enc->codec_id);
2704 if (enc->profile != FF_PROFILE_UNKNOWN) {
2708 p = encode ? avcodec_find_encoder(enc->codec_id) :
2709 avcodec_find_decoder(enc->codec_id);
2711 profile = av_get_profile_name(p, enc->profile);
2714 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
2716 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
2718 if (enc->codec && strcmp(enc->codec->name, codec_name))
2719 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
2722 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
2723 if (enc->codec_tag) {
2725 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
2726 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2727 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
2730 switch (enc->codec_type) {
2731 case AVMEDIA_TYPE_VIDEO:
2732 if (enc->pix_fmt != AV_PIX_FMT_NONE) {
2733 char detail[256] = "(";
2734 const char *colorspace_name;
2735 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2737 av_get_pix_fmt_name(enc->pix_fmt));
2738 if (enc->bits_per_raw_sample &&
2739 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
2740 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
2741 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
2742 av_strlcatf(detail, sizeof(detail),
2743 enc->color_range == AVCOL_RANGE_MPEG ? "tv, ": "pc, ");
2745 colorspace_name = av_get_colorspace_name(enc->colorspace);
2746 if (colorspace_name)
2747 av_strlcatf(detail, sizeof(detail), "%s, ", colorspace_name);
2749 if (strlen(detail) > 1) {
2750 detail[strlen(detail) - 2] = 0;
2751 av_strlcatf(buf, buf_size, "%s)", detail);
2755 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2757 enc->width, enc->height);
2758 if (enc->sample_aspect_ratio.num) {
2759 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
2760 enc->width * enc->sample_aspect_ratio.num,
2761 enc->height * enc->sample_aspect_ratio.den,
2763 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2764 " [SAR %d:%d DAR %d:%d]",
2765 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
2766 display_aspect_ratio.num, display_aspect_ratio.den);
2768 if (av_log_get_level() >= AV_LOG_DEBUG) {
2769 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2770 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2772 enc->time_base.num / g, enc->time_base.den / g);
2776 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2777 ", q=%d-%d", enc->qmin, enc->qmax);
2780 case AVMEDIA_TYPE_AUDIO:
2781 if (enc->sample_rate) {
2782 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2783 ", %d Hz", enc->sample_rate);
2785 av_strlcat(buf, ", ", buf_size);
2786 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
2787 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
2788 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2789 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
2792 case AVMEDIA_TYPE_DATA:
2793 if (av_log_get_level() >= AV_LOG_DEBUG) {
2794 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2796 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2798 enc->time_base.num / g, enc->time_base.den / g);
2801 case AVMEDIA_TYPE_SUBTITLE:
2803 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2804 ", %dx%d", enc->width, enc->height);
2810 if (enc->flags & CODEC_FLAG_PASS1)
2811 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2813 if (enc->flags & CODEC_FLAG_PASS2)
2814 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2817 bitrate = get_bit_rate(enc);
2819 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2820 ", %d kb/s", bitrate / 1000);
2821 } else if (enc->rc_max_rate > 0) {
2822 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2823 ", max. %d kb/s", enc->rc_max_rate / 1000);
2827 const char *av_get_profile_name(const AVCodec *codec, int profile)
2830 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
2833 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
2834 if (p->profile == profile)
2840 unsigned avcodec_version(void)
2842 // av_assert0(AV_CODEC_ID_V410==164);
2843 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
2844 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
2845 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
2846 av_assert0(AV_CODEC_ID_SRT==94216);
2847 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
2849 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
2850 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
2851 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
2852 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
2853 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
2854 return LIBAVCODEC_VERSION_INT;
2857 const char *avcodec_configuration(void)
2859 return FFMPEG_CONFIGURATION;
2862 const char *avcodec_license(void)
2864 #define LICENSE_PREFIX "libavcodec license: "
2865 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
2868 void avcodec_flush_buffers(AVCodecContext *avctx)
2870 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2871 ff_thread_flush(avctx);
2872 else if (avctx->codec->flush)
2873 avctx->codec->flush(avctx);
2875 avctx->pts_correction_last_pts =
2876 avctx->pts_correction_last_dts = INT64_MIN;
2878 if (!avctx->refcounted_frames)
2879 av_frame_unref(&avctx->internal->to_free);
2882 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
2885 case AV_CODEC_ID_8SVX_EXP:
2886 case AV_CODEC_ID_8SVX_FIB:
2887 case AV_CODEC_ID_ADPCM_CT:
2888 case AV_CODEC_ID_ADPCM_IMA_APC:
2889 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
2890 case AV_CODEC_ID_ADPCM_IMA_OKI:
2891 case AV_CODEC_ID_ADPCM_IMA_WS:
2892 case AV_CODEC_ID_ADPCM_G722:
2893 case AV_CODEC_ID_ADPCM_YAMAHA:
2895 case AV_CODEC_ID_PCM_ALAW:
2896 case AV_CODEC_ID_PCM_MULAW:
2897 case AV_CODEC_ID_PCM_S8:
2898 case AV_CODEC_ID_PCM_S8_PLANAR:
2899 case AV_CODEC_ID_PCM_U8:
2900 case AV_CODEC_ID_PCM_ZORK:
2902 case AV_CODEC_ID_PCM_S16BE:
2903 case AV_CODEC_ID_PCM_S16BE_PLANAR:
2904 case AV_CODEC_ID_PCM_S16LE:
2905 case AV_CODEC_ID_PCM_S16LE_PLANAR:
2906 case AV_CODEC_ID_PCM_U16BE:
2907 case AV_CODEC_ID_PCM_U16LE:
2909 case AV_CODEC_ID_PCM_S24DAUD:
2910 case AV_CODEC_ID_PCM_S24BE:
2911 case AV_CODEC_ID_PCM_S24LE:
2912 case AV_CODEC_ID_PCM_S24LE_PLANAR:
2913 case AV_CODEC_ID_PCM_U24BE:
2914 case AV_CODEC_ID_PCM_U24LE:
2916 case AV_CODEC_ID_PCM_S32BE:
2917 case AV_CODEC_ID_PCM_S32LE:
2918 case AV_CODEC_ID_PCM_S32LE_PLANAR:
2919 case AV_CODEC_ID_PCM_U32BE:
2920 case AV_CODEC_ID_PCM_U32LE:
2921 case AV_CODEC_ID_PCM_F32BE:
2922 case AV_CODEC_ID_PCM_F32LE:
2924 case AV_CODEC_ID_PCM_F64BE:
2925 case AV_CODEC_ID_PCM_F64LE:
2932 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
2934 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
2935 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
2936 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
2937 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
2938 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
2939 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
2940 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
2941 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
2942 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
2943 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
2944 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
2946 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
2947 return AV_CODEC_ID_NONE;
2948 if (be < 0 || be > 1)
2950 return map[fmt][be];
2953 int av_get_bits_per_sample(enum AVCodecID codec_id)
2956 case AV_CODEC_ID_ADPCM_SBPRO_2:
2958 case AV_CODEC_ID_ADPCM_SBPRO_3:
2960 case AV_CODEC_ID_ADPCM_SBPRO_4:
2961 case AV_CODEC_ID_ADPCM_IMA_WAV:
2962 case AV_CODEC_ID_ADPCM_IMA_QT:
2963 case AV_CODEC_ID_ADPCM_SWF:
2964 case AV_CODEC_ID_ADPCM_MS:
2967 return av_get_exact_bits_per_sample(codec_id);
2971 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
2973 int id, sr, ch, ba, tag, bps;
2975 id = avctx->codec_id;
2976 sr = avctx->sample_rate;
2977 ch = avctx->channels;
2978 ba = avctx->block_align;
2979 tag = avctx->codec_tag;
2980 bps = av_get_exact_bits_per_sample(avctx->codec_id);
2982 /* codecs with an exact constant bits per sample */
2983 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
2984 return (frame_bytes * 8LL) / (bps * ch);
2985 bps = avctx->bits_per_coded_sample;
2987 /* codecs with a fixed packet duration */
2989 case AV_CODEC_ID_ADPCM_ADX: return 32;
2990 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
2991 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
2992 case AV_CODEC_ID_AMR_NB:
2993 case AV_CODEC_ID_EVRC:
2994 case AV_CODEC_ID_GSM:
2995 case AV_CODEC_ID_QCELP:
2996 case AV_CODEC_ID_RA_288: return 160;
2997 case AV_CODEC_ID_AMR_WB:
2998 case AV_CODEC_ID_GSM_MS: return 320;
2999 case AV_CODEC_ID_MP1: return 384;
3000 case AV_CODEC_ID_ATRAC1: return 512;
3001 case AV_CODEC_ID_ATRAC3: return 1024;
3002 case AV_CODEC_ID_MP2:
3003 case AV_CODEC_ID_MUSEPACK7: return 1152;
3004 case AV_CODEC_ID_AC3: return 1536;
3008 /* calc from sample rate */
3009 if (id == AV_CODEC_ID_TTA)
3010 return 256 * sr / 245;
3013 /* calc from sample rate and channels */
3014 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3015 return (480 << (sr / 22050)) / ch;
3020 /* calc from block_align */
3021 if (id == AV_CODEC_ID_SIPR) {
3023 case 20: return 160;
3024 case 19: return 144;
3025 case 29: return 288;
3026 case 37: return 480;
3028 } else if (id == AV_CODEC_ID_ILBC) {
3030 case 38: return 160;
3031 case 50: return 240;
3036 if (frame_bytes > 0) {
3037 /* calc from frame_bytes only */
3038 if (id == AV_CODEC_ID_TRUESPEECH)
3039 return 240 * (frame_bytes / 32);
3040 if (id == AV_CODEC_ID_NELLYMOSER)
3041 return 256 * (frame_bytes / 64);
3042 if (id == AV_CODEC_ID_RA_144)
3043 return 160 * (frame_bytes / 20);
3044 if (id == AV_CODEC_ID_G723_1)
3045 return 240 * (frame_bytes / 24);
3048 /* calc from frame_bytes and bits_per_coded_sample */
3049 if (id == AV_CODEC_ID_ADPCM_G726)
3050 return frame_bytes * 8 / bps;
3054 /* calc from frame_bytes and channels */
3056 case AV_CODEC_ID_ADPCM_AFC:
3057 return frame_bytes / (9 * ch) * 16;
3058 case AV_CODEC_ID_ADPCM_DTK:
3059 return frame_bytes / (16 * ch) * 28;
3060 case AV_CODEC_ID_ADPCM_4XM:
3061 case AV_CODEC_ID_ADPCM_IMA_ISS:
3062 return (frame_bytes - 4 * ch) * 2 / ch;
3063 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3064 return (frame_bytes - 4) * 2 / ch;
3065 case AV_CODEC_ID_ADPCM_IMA_AMV:
3066 return (frame_bytes - 8) * 2 / ch;
3067 case AV_CODEC_ID_ADPCM_XA:
3068 return (frame_bytes / 128) * 224 / ch;
3069 case AV_CODEC_ID_INTERPLAY_DPCM:
3070 return (frame_bytes - 6 - ch) / ch;
3071 case AV_CODEC_ID_ROQ_DPCM:
3072 return (frame_bytes - 8) / ch;
3073 case AV_CODEC_ID_XAN_DPCM:
3074 return (frame_bytes - 2 * ch) / ch;
3075 case AV_CODEC_ID_MACE3:
3076 return 3 * frame_bytes / ch;
3077 case AV_CODEC_ID_MACE6:
3078 return 6 * frame_bytes / ch;
3079 case AV_CODEC_ID_PCM_LXF:
3080 return 2 * (frame_bytes / (5 * ch));
3081 case AV_CODEC_ID_IAC:
3082 case AV_CODEC_ID_IMC:
3083 return 4 * frame_bytes / ch;
3087 /* calc from frame_bytes, channels, and codec_tag */
3088 if (id == AV_CODEC_ID_SOL_DPCM) {
3090 return frame_bytes / ch;
3092 return frame_bytes * 2 / ch;
3097 /* calc from frame_bytes, channels, and block_align */
3098 int blocks = frame_bytes / ba;
3099 switch (avctx->codec_id) {
3100 case AV_CODEC_ID_ADPCM_IMA_WAV:
3101 if (bps < 2 || bps > 5)
3103 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3104 case AV_CODEC_ID_ADPCM_IMA_DK3:
3105 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3106 case AV_CODEC_ID_ADPCM_IMA_DK4:
3107 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3108 case AV_CODEC_ID_ADPCM_IMA_RAD:
3109 return blocks * ((ba - 4 * ch) * 2 / ch);
3110 case AV_CODEC_ID_ADPCM_MS:
3111 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3116 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3117 switch (avctx->codec_id) {
3118 case AV_CODEC_ID_PCM_DVD:
3121 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3122 case AV_CODEC_ID_PCM_BLURAY:
3125 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3126 case AV_CODEC_ID_S302M:
3127 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3137 int ff_thread_init(AVCodecContext *s)
3144 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3158 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3161 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3165 #if FF_API_MISSING_SAMPLE
3166 FF_DISABLE_DEPRECATION_WARNINGS
3167 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3169 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3170 "version to the newest one from Git. If the problem still "
3171 "occurs, it means that your file has a feature which has not "
3172 "been implemented.\n", feature);
3174 av_log_ask_for_sample(avc, NULL);
3177 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3179 va_list argument_list;
3181 va_start(argument_list, msg);
3184 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3185 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3186 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
3187 "and contact the ffmpeg-devel mailing list.\n");
3189 va_end(argument_list);
3191 FF_ENABLE_DEPRECATION_WARNINGS
3192 #endif /* FF_API_MISSING_SAMPLE */
3194 static AVHWAccel *first_hwaccel = NULL;
3196 void av_register_hwaccel(AVHWAccel *hwaccel)
3198 AVHWAccel **p = &first_hwaccel;
3199 hwaccel->next = NULL;
3200 while(avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3204 AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
3206 return hwaccel ? hwaccel->next : first_hwaccel;
3209 AVHWAccel *ff_find_hwaccel(AVCodecContext *avctx)
3211 enum AVCodecID codec_id = avctx->codec->id;
3212 enum AVPixelFormat pix_fmt = avctx->pix_fmt;
3214 AVHWAccel *hwaccel = NULL;
3216 while ((hwaccel = av_hwaccel_next(hwaccel)))
3217 if (hwaccel->id == codec_id
3218 && hwaccel->pix_fmt == pix_fmt)
3223 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3226 if (lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
3228 if (lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY))
3235 if (lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
3237 if (lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE))
3243 int ff_lock_avcodec(AVCodecContext *log_ctx)
3246 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3249 entangled_thread_counter++;
3250 if (entangled_thread_counter != 1) {
3251 av_log(log_ctx, AV_LOG_ERROR, "Insufficient thread locking around avcodec_open/close()\n");
3253 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3254 ff_avcodec_locked = 1;
3255 ff_unlock_avcodec();
3256 return AVERROR(EINVAL);
3258 av_assert0(!ff_avcodec_locked);
3259 ff_avcodec_locked = 1;
3263 int ff_unlock_avcodec(void)
3265 av_assert0(ff_avcodec_locked);
3266 ff_avcodec_locked = 0;
3267 entangled_thread_counter--;
3269 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3275 int avpriv_lock_avformat(void)
3278 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3284 int avpriv_unlock_avformat(void)
3287 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3293 unsigned int avpriv_toupper4(unsigned int x)
3295 return av_toupper(x & 0xFF) +
3296 (av_toupper((x >> 8) & 0xFF) << 8) +
3297 (av_toupper((x >> 16) & 0xFF) << 16) +
3298 (av_toupper((x >> 24) & 0xFF) << 24);
3301 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3305 dst->owner = src->owner;
3307 ret = av_frame_ref(dst->f, src->f);
3311 if (src->progress &&
3312 !(dst->progress = av_buffer_ref(src->progress))) {
3313 ff_thread_release_buffer(dst->owner, dst);
3314 return AVERROR(ENOMEM);
3322 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3324 return avctx->get_format(avctx, fmt);
3327 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3330 return ff_get_buffer(avctx, f->f, flags);
3333 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3335 av_frame_unref(f->f);
3338 void ff_thread_finish_setup(AVCodecContext *avctx)
3342 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3346 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3350 int ff_thread_can_start_frame(AVCodecContext *avctx)
3355 int ff_alloc_entries(AVCodecContext *avctx, int count)
3360 void ff_reset_entries(AVCodecContext *avctx)
3364 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3368 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3374 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3376 AVCodec *c= avcodec_find_decoder(codec_id);
3378 c= avcodec_find_encoder(codec_id);
3382 if (codec_id <= AV_CODEC_ID_NONE)
3383 return AVMEDIA_TYPE_UNKNOWN;
3384 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3385 return AVMEDIA_TYPE_VIDEO;
3386 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3387 return AVMEDIA_TYPE_AUDIO;
3388 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3389 return AVMEDIA_TYPE_SUBTITLE;
3391 return AVMEDIA_TYPE_UNKNOWN;
3394 int avcodec_is_open(AVCodecContext *s)
3396 return !!s->internal;
3399 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3404 ret = av_bprint_finalize(buf, &str);
3407 avctx->extradata = str;
3408 /* Note: the string is NUL terminated (so extradata can be read as a
3409 * string), but the ending character is not accounted in the size (in
3410 * binary formats you are likely not supposed to mux that character). When
3411 * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE
3413 avctx->extradata_size = buf->len;
3417 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3419 uint32_t *av_restrict state)
3423 av_assert0(p <= end);
3427 for (i = 0; i < 3; i++) {
3428 uint32_t tmp = *state << 8;
3429 *state = tmp + *(p++);
3430 if (tmp == 0x100 || p == end)
3435 if (p[-1] > 1 ) p += 3;
3436 else if (p[-2] ) p += 2;
3437 else if (p[-3]|(p[-1]-1)) p++;
3444 p = FFMIN(p, end) - 4;
3445 *state = AV_RB32(p);