3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "libavutil/atomic.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/bprint.h"
34 #include "libavutil/channel_layout.h"
35 #include "libavutil/crc.h"
36 #include "libavutil/frame.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
45 #include "libavutil/opt.h"
47 #include "mpegvideo.h"
49 #include "frame_thread_encoder.h"
52 #include "bytestream.h"
65 #include "compat/w32pthreads.h"
67 #include "compat/os2threads.h"
70 #include "libavutil/ffversion.h"
71 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
73 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
74 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
76 void * volatile * mutex = arg;
84 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
86 return AVERROR(ENOMEM);
87 if ((err = pthread_mutex_init(tmp, NULL))) {
91 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
92 pthread_mutex_destroy(tmp);
97 if ((err = pthread_mutex_lock(*mutex)))
101 case AV_LOCK_RELEASE:
102 if ((err = pthread_mutex_unlock(*mutex)))
106 case AV_LOCK_DESTROY:
108 pthread_mutex_destroy(*mutex);
110 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
115 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
117 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
121 volatile int ff_avcodec_locked;
122 static int volatile entangled_thread_counter = 0;
123 static void *codec_mutex;
124 static void *avformat_mutex;
126 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
129 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
134 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
135 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
138 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
141 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
146 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
147 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
150 /* encoder management */
151 static AVCodec *first_avcodec = NULL;
152 static AVCodec **last_avcodec = &first_avcodec;
154 AVCodec *av_codec_next(const AVCodec *c)
159 return first_avcodec;
162 static av_cold void avcodec_init(void)
164 static int initialized = 0;
166 if (initialized != 0)
171 ff_me_cmp_init_static();
174 int av_codec_is_encoder(const AVCodec *codec)
176 return codec && (codec->encode_sub || codec->encode2);
179 int av_codec_is_decoder(const AVCodec *codec)
181 return codec && codec->decode;
184 av_cold void avcodec_register(AVCodec *codec)
191 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
193 last_avcodec = &codec->next;
195 if (codec->init_static_data)
196 codec->init_static_data(codec);
200 unsigned avcodec_get_edge_width(void)
206 #if FF_API_SET_DIMENSIONS
207 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
209 int ret = ff_set_dimensions(s, width, height);
211 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
216 int ff_set_dimensions(AVCodecContext *s, int width, int height)
218 int ret = av_image_check_size(width, height, 0, s);
223 s->coded_width = width;
224 s->coded_height = height;
225 s->width = FF_CEIL_RSHIFT(width, s->lowres);
226 s->height = FF_CEIL_RSHIFT(height, s->lowres);
231 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
233 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
236 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
238 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
241 avctx->sample_aspect_ratio = sar;
246 int ff_side_data_update_matrix_encoding(AVFrame *frame,
247 enum AVMatrixEncoding matrix_encoding)
249 AVFrameSideData *side_data;
250 enum AVMatrixEncoding *data;
252 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
254 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
255 sizeof(enum AVMatrixEncoding));
258 return AVERROR(ENOMEM);
260 data = (enum AVMatrixEncoding*)side_data->data;
261 *data = matrix_encoding;
266 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
267 int linesize_align[AV_NUM_DATA_POINTERS])
272 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
275 w_align = 1 << desc->log2_chroma_w;
276 h_align = 1 << desc->log2_chroma_h;
279 switch (s->pix_fmt) {
280 case AV_PIX_FMT_YUV420P:
281 case AV_PIX_FMT_YUYV422:
282 case AV_PIX_FMT_YVYU422:
283 case AV_PIX_FMT_UYVY422:
284 case AV_PIX_FMT_YUV422P:
285 case AV_PIX_FMT_YUV440P:
286 case AV_PIX_FMT_YUV444P:
287 case AV_PIX_FMT_GBRP:
288 case AV_PIX_FMT_GBRAP:
289 case AV_PIX_FMT_GRAY8:
290 case AV_PIX_FMT_GRAY16BE:
291 case AV_PIX_FMT_GRAY16LE:
292 case AV_PIX_FMT_YUVJ420P:
293 case AV_PIX_FMT_YUVJ422P:
294 case AV_PIX_FMT_YUVJ440P:
295 case AV_PIX_FMT_YUVJ444P:
296 case AV_PIX_FMT_YUVA420P:
297 case AV_PIX_FMT_YUVA422P:
298 case AV_PIX_FMT_YUVA444P:
299 case AV_PIX_FMT_YUV420P9LE:
300 case AV_PIX_FMT_YUV420P9BE:
301 case AV_PIX_FMT_YUV420P10LE:
302 case AV_PIX_FMT_YUV420P10BE:
303 case AV_PIX_FMT_YUV420P12LE:
304 case AV_PIX_FMT_YUV420P12BE:
305 case AV_PIX_FMT_YUV420P14LE:
306 case AV_PIX_FMT_YUV420P14BE:
307 case AV_PIX_FMT_YUV420P16LE:
308 case AV_PIX_FMT_YUV420P16BE:
309 case AV_PIX_FMT_YUVA420P9LE:
310 case AV_PIX_FMT_YUVA420P9BE:
311 case AV_PIX_FMT_YUVA420P10LE:
312 case AV_PIX_FMT_YUVA420P10BE:
313 case AV_PIX_FMT_YUVA420P16LE:
314 case AV_PIX_FMT_YUVA420P16BE:
315 case AV_PIX_FMT_YUV422P9LE:
316 case AV_PIX_FMT_YUV422P9BE:
317 case AV_PIX_FMT_YUV422P10LE:
318 case AV_PIX_FMT_YUV422P10BE:
319 case AV_PIX_FMT_YUV422P12LE:
320 case AV_PIX_FMT_YUV422P12BE:
321 case AV_PIX_FMT_YUV422P14LE:
322 case AV_PIX_FMT_YUV422P14BE:
323 case AV_PIX_FMT_YUV422P16LE:
324 case AV_PIX_FMT_YUV422P16BE:
325 case AV_PIX_FMT_YUVA422P9LE:
326 case AV_PIX_FMT_YUVA422P9BE:
327 case AV_PIX_FMT_YUVA422P10LE:
328 case AV_PIX_FMT_YUVA422P10BE:
329 case AV_PIX_FMT_YUVA422P16LE:
330 case AV_PIX_FMT_YUVA422P16BE:
331 case AV_PIX_FMT_YUV440P10LE:
332 case AV_PIX_FMT_YUV440P10BE:
333 case AV_PIX_FMT_YUV440P12LE:
334 case AV_PIX_FMT_YUV440P12BE:
335 case AV_PIX_FMT_YUV444P9LE:
336 case AV_PIX_FMT_YUV444P9BE:
337 case AV_PIX_FMT_YUV444P10LE:
338 case AV_PIX_FMT_YUV444P10BE:
339 case AV_PIX_FMT_YUV444P12LE:
340 case AV_PIX_FMT_YUV444P12BE:
341 case AV_PIX_FMT_YUV444P14LE:
342 case AV_PIX_FMT_YUV444P14BE:
343 case AV_PIX_FMT_YUV444P16LE:
344 case AV_PIX_FMT_YUV444P16BE:
345 case AV_PIX_FMT_YUVA444P9LE:
346 case AV_PIX_FMT_YUVA444P9BE:
347 case AV_PIX_FMT_YUVA444P10LE:
348 case AV_PIX_FMT_YUVA444P10BE:
349 case AV_PIX_FMT_YUVA444P16LE:
350 case AV_PIX_FMT_YUVA444P16BE:
351 case AV_PIX_FMT_GBRP9LE:
352 case AV_PIX_FMT_GBRP9BE:
353 case AV_PIX_FMT_GBRP10LE:
354 case AV_PIX_FMT_GBRP10BE:
355 case AV_PIX_FMT_GBRP12LE:
356 case AV_PIX_FMT_GBRP12BE:
357 case AV_PIX_FMT_GBRP14LE:
358 case AV_PIX_FMT_GBRP14BE:
359 case AV_PIX_FMT_GBRP16LE:
360 case AV_PIX_FMT_GBRP16BE:
361 w_align = 16; //FIXME assume 16 pixel per macroblock
362 h_align = 16 * 2; // interlaced needs 2 macroblocks height
364 case AV_PIX_FMT_YUV411P:
365 case AV_PIX_FMT_YUVJ411P:
366 case AV_PIX_FMT_UYYVYY411:
370 case AV_PIX_FMT_YUV410P:
371 if (s->codec_id == AV_CODEC_ID_SVQ1) {
376 case AV_PIX_FMT_RGB555:
377 if (s->codec_id == AV_CODEC_ID_RPZA) {
382 case AV_PIX_FMT_PAL8:
383 case AV_PIX_FMT_BGR8:
384 case AV_PIX_FMT_RGB8:
385 if (s->codec_id == AV_CODEC_ID_SMC ||
386 s->codec_id == AV_CODEC_ID_CINEPAK) {
390 if (s->codec_id == AV_CODEC_ID_JV) {
395 case AV_PIX_FMT_BGR24:
396 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
397 (s->codec_id == AV_CODEC_ID_ZLIB)) {
402 case AV_PIX_FMT_RGB24:
403 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
412 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
413 w_align = FFMAX(w_align, 8);
416 *width = FFALIGN(*width, w_align);
417 *height = FFALIGN(*height, h_align);
418 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
419 // some of the optimized chroma MC reads one line too much
420 // which is also done in mpeg decoders with lowres > 0
423 // H.264 uses edge emulation for out of frame motion vectors, for this
424 // it requires a temporary area large enough to hold a 21x21 block,
425 // increasing witdth ensure that the temporary area is large enough,
426 // the next rounded up width is 32
427 *width = FFMAX(*width, 32);
430 for (i = 0; i < 4; i++)
431 linesize_align[i] = STRIDE_ALIGN;
434 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
436 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
437 int chroma_shift = desc->log2_chroma_w;
438 int linesize_align[AV_NUM_DATA_POINTERS];
441 avcodec_align_dimensions2(s, width, height, linesize_align);
442 align = FFMAX(linesize_align[0], linesize_align[3]);
443 linesize_align[1] <<= chroma_shift;
444 linesize_align[2] <<= chroma_shift;
445 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
446 *width = FFALIGN(*width, align);
449 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
451 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
452 return AVERROR(EINVAL);
455 *xpos = (pos&1) * 128;
456 *ypos = ((pos>>1)^(pos<4)) * 128;
461 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
465 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
466 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
469 return AVCHROMA_LOC_UNSPECIFIED;
472 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
473 enum AVSampleFormat sample_fmt, const uint8_t *buf,
474 int buf_size, int align)
476 int ch, planar, needed_size, ret = 0;
478 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
479 frame->nb_samples, sample_fmt,
481 if (buf_size < needed_size)
482 return AVERROR(EINVAL);
484 planar = av_sample_fmt_is_planar(sample_fmt);
485 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
486 if (!(frame->extended_data = av_mallocz_array(nb_channels,
487 sizeof(*frame->extended_data))))
488 return AVERROR(ENOMEM);
490 frame->extended_data = frame->data;
493 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
494 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
495 sample_fmt, align)) < 0) {
496 if (frame->extended_data != frame->data)
497 av_freep(&frame->extended_data);
500 if (frame->extended_data != frame->data) {
501 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
502 frame->data[ch] = frame->extended_data[ch];
508 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
510 FramePool *pool = avctx->internal->pool;
513 switch (avctx->codec_type) {
514 case AVMEDIA_TYPE_VIDEO: {
517 int w = frame->width;
518 int h = frame->height;
519 int tmpsize, unaligned;
521 if (pool->format == frame->format &&
522 pool->width == frame->width && pool->height == frame->height)
525 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
528 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
529 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
530 av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w);
531 // increase alignment of w for next try (rhs gives the lowest bit set in w)
535 for (i = 0; i < 4; i++)
536 unaligned |= picture.linesize[i] % pool->stride_align[i];
539 tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h,
540 NULL, picture.linesize);
544 for (i = 0; i < 3 && picture.data[i + 1]; i++)
545 size[i] = picture.data[i + 1] - picture.data[i];
546 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
548 for (i = 0; i < 4; i++) {
549 av_buffer_pool_uninit(&pool->pools[i]);
550 pool->linesize[i] = picture.linesize[i];
552 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
553 CONFIG_MEMORY_POISONING ?
556 if (!pool->pools[i]) {
557 ret = AVERROR(ENOMEM);
562 pool->format = frame->format;
563 pool->width = frame->width;
564 pool->height = frame->height;
568 case AVMEDIA_TYPE_AUDIO: {
569 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
570 int planar = av_sample_fmt_is_planar(frame->format);
571 int planes = planar ? ch : 1;
573 if (pool->format == frame->format && pool->planes == planes &&
574 pool->channels == ch && frame->nb_samples == pool->samples)
577 av_buffer_pool_uninit(&pool->pools[0]);
578 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
579 frame->nb_samples, frame->format, 0);
583 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
584 if (!pool->pools[0]) {
585 ret = AVERROR(ENOMEM);
589 pool->format = frame->format;
590 pool->planes = planes;
592 pool->samples = frame->nb_samples;
595 default: av_assert0(0);
599 for (i = 0; i < 4; i++)
600 av_buffer_pool_uninit(&pool->pools[i]);
602 pool->planes = pool->channels = pool->samples = 0;
603 pool->width = pool->height = 0;
607 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
609 FramePool *pool = avctx->internal->pool;
610 int planes = pool->planes;
613 frame->linesize[0] = pool->linesize[0];
615 if (planes > AV_NUM_DATA_POINTERS) {
616 frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
617 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
618 frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
619 sizeof(*frame->extended_buf));
620 if (!frame->extended_data || !frame->extended_buf) {
621 av_freep(&frame->extended_data);
622 av_freep(&frame->extended_buf);
623 return AVERROR(ENOMEM);
626 frame->extended_data = frame->data;
627 av_assert0(frame->nb_extended_buf == 0);
630 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
631 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
634 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
636 for (i = 0; i < frame->nb_extended_buf; i++) {
637 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
638 if (!frame->extended_buf[i])
640 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
643 if (avctx->debug & FF_DEBUG_BUFFERS)
644 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
648 av_frame_unref(frame);
649 return AVERROR(ENOMEM);
652 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
654 FramePool *pool = s->internal->pool;
658 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
662 memset(pic->data, 0, sizeof(pic->data));
663 pic->extended_data = pic->data;
665 for (i = 0; i < 4 && pool->pools[i]; i++) {
666 pic->linesize[i] = pool->linesize[i];
668 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
672 pic->data[i] = pic->buf[i]->data;
674 for (; i < AV_NUM_DATA_POINTERS; i++) {
676 pic->linesize[i] = 0;
678 if (pic->data[1] && !pic->data[2])
679 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
681 if (s->debug & FF_DEBUG_BUFFERS)
682 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
687 return AVERROR(ENOMEM);
690 void avpriv_color_frame(AVFrame *frame, const int c[4])
692 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
695 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
697 for (p = 0; p<desc->nb_components; p++) {
698 uint8_t *dst = frame->data[p];
699 int is_chroma = p == 1 || p == 2;
700 int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
701 int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
702 for (y = 0; y < height; y++) {
703 if (desc->comp[0].depth >= 9) {
704 for (x = 0; x<bytes; x++)
705 ((uint16_t*)dst)[x] = c[p];
707 memset(dst, c[p], bytes);
708 dst += frame->linesize[p];
713 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
717 if ((ret = update_frame_pool(avctx, frame)) < 0)
720 switch (avctx->codec_type) {
721 case AVMEDIA_TYPE_VIDEO:
722 return video_get_buffer(avctx, frame);
723 case AVMEDIA_TYPE_AUDIO:
724 return audio_get_buffer(avctx, frame);
730 static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame)
733 const uint8_t *side_metadata;
735 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
737 side_metadata = av_packet_get_side_data(avpkt,
738 AV_PKT_DATA_STRINGS_METADATA, &size);
739 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
742 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
744 AVPacket *pkt = avctx->internal->pkt;
746 static const struct {
747 enum AVPacketSideDataType packet;
748 enum AVFrameSideDataType frame;
750 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
751 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
752 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
753 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
757 frame->pkt_pts = pkt->pts;
758 av_frame_set_pkt_pos (frame, pkt->pos);
759 av_frame_set_pkt_duration(frame, pkt->duration);
760 av_frame_set_pkt_size (frame, pkt->size);
762 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
764 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
766 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
770 return AVERROR(ENOMEM);
772 memcpy(frame_sd->data, packet_sd, size);
775 add_metadata_from_side_data(pkt, frame);
777 frame->pkt_pts = AV_NOPTS_VALUE;
778 av_frame_set_pkt_pos (frame, -1);
779 av_frame_set_pkt_duration(frame, 0);
780 av_frame_set_pkt_size (frame, -1);
782 frame->reordered_opaque = avctx->reordered_opaque;
784 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
785 frame->color_primaries = avctx->color_primaries;
786 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
787 frame->color_trc = avctx->color_trc;
788 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
789 av_frame_set_colorspace(frame, avctx->colorspace);
790 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
791 av_frame_set_color_range(frame, avctx->color_range);
792 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
793 frame->chroma_location = avctx->chroma_sample_location;
795 switch (avctx->codec->type) {
796 case AVMEDIA_TYPE_VIDEO:
797 frame->format = avctx->pix_fmt;
798 if (!frame->sample_aspect_ratio.num)
799 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
801 if (frame->width && frame->height &&
802 av_image_check_sar(frame->width, frame->height,
803 frame->sample_aspect_ratio) < 0) {
804 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
805 frame->sample_aspect_ratio.num,
806 frame->sample_aspect_ratio.den);
807 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
811 case AVMEDIA_TYPE_AUDIO:
812 if (!frame->sample_rate)
813 frame->sample_rate = avctx->sample_rate;
814 if (frame->format < 0)
815 frame->format = avctx->sample_fmt;
816 if (!frame->channel_layout) {
817 if (avctx->channel_layout) {
818 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
820 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
822 return AVERROR(EINVAL);
825 frame->channel_layout = avctx->channel_layout;
827 if (avctx->channels > FF_SANE_NB_CHANNELS) {
828 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
830 return AVERROR(ENOSYS);
834 av_frame_set_channels(frame, avctx->channels);
840 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
842 return ff_init_buffer_info(avctx, frame);
845 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
847 const AVHWAccel *hwaccel = avctx->hwaccel;
848 int override_dimensions = 1;
851 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
852 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
853 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
854 return AVERROR(EINVAL);
857 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
858 if (frame->width <= 0 || frame->height <= 0) {
859 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
860 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
861 override_dimensions = 0;
864 ret = ff_decode_frame_props(avctx, frame);
869 if (hwaccel->alloc_frame) {
870 ret = hwaccel->alloc_frame(avctx, frame);
874 avctx->sw_pix_fmt = avctx->pix_fmt;
876 ret = avctx->get_buffer2(avctx, frame, flags);
879 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
880 frame->width = avctx->width;
881 frame->height = avctx->height;
887 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
889 int ret = get_buffer_internal(avctx, frame, flags);
891 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
895 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
900 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
902 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
903 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
904 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
905 av_frame_unref(frame);
908 ff_init_buffer_info(avctx, frame);
911 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
913 if (av_frame_is_writable(frame))
914 return ff_decode_frame_props(avctx, frame);
916 tmp = av_frame_alloc();
918 return AVERROR(ENOMEM);
920 av_frame_move_ref(tmp, frame);
922 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
928 av_frame_copy(frame, tmp);
934 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
936 int ret = reget_buffer_internal(avctx, frame);
938 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
942 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
946 for (i = 0; i < count; i++) {
947 int r = func(c, (char *)arg + i * size);
954 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
958 for (i = 0; i < count; i++) {
959 int r = func(c, arg, i, 0);
966 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
969 while (tags->pix_fmt >= 0) {
970 if (tags->fourcc == fourcc)
971 return tags->pix_fmt;
974 return AV_PIX_FMT_NONE;
977 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
979 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
980 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
983 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
985 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
990 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
991 enum AVPixelFormat pix_fmt)
993 AVHWAccel *hwaccel = NULL;
995 while ((hwaccel = av_hwaccel_next(hwaccel)))
996 if (hwaccel->id == codec_id
997 && hwaccel->pix_fmt == pix_fmt)
1002 static int setup_hwaccel(AVCodecContext *avctx,
1003 const enum AVPixelFormat fmt,
1006 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1010 av_log(avctx, AV_LOG_ERROR,
1011 "Could not find an AVHWAccel for the pixel format: %s",
1013 return AVERROR(ENOENT);
1016 if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1017 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1018 av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1020 return AVERROR_PATCHWELCOME;
1023 if (hwa->priv_data_size) {
1024 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
1025 if (!avctx->internal->hwaccel_priv_data)
1026 return AVERROR(ENOMEM);
1030 ret = hwa->init(avctx);
1032 av_freep(&avctx->internal->hwaccel_priv_data);
1037 avctx->hwaccel = hwa;
1042 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1044 const AVPixFmtDescriptor *desc;
1045 enum AVPixelFormat *choices;
1046 enum AVPixelFormat ret;
1049 while (fmt[n] != AV_PIX_FMT_NONE)
1053 avctx->sw_pix_fmt = fmt[n - 1];
1054 av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
1056 choices = av_malloc_array(n + 1, sizeof(*choices));
1058 return AV_PIX_FMT_NONE;
1060 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1063 if (avctx->hwaccel && avctx->hwaccel->uninit)
1064 avctx->hwaccel->uninit(avctx);
1065 av_freep(&avctx->internal->hwaccel_priv_data);
1066 avctx->hwaccel = NULL;
1068 ret = avctx->get_format(avctx, choices);
1070 desc = av_pix_fmt_desc_get(ret);
1072 ret = AV_PIX_FMT_NONE;
1076 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1078 #if FF_API_CAP_VDPAU
1079 if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
1083 if (!setup_hwaccel(avctx, ret, desc->name))
1086 /* Remove failed hwaccel from choices */
1087 for (n = 0; choices[n] != ret; n++)
1088 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1091 choices[n] = choices[n + 1];
1092 while (choices[n++] != AV_PIX_FMT_NONE);
1099 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1100 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1101 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1102 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1103 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1105 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
1107 return codec->properties;
1110 int av_codec_get_max_lowres(const AVCodec *codec)
1112 return codec->max_lowres;
1115 static void get_subtitle_defaults(AVSubtitle *sub)
1117 memset(sub, 0, sizeof(*sub));
1118 sub->pts = AV_NOPTS_VALUE;
1121 static int64_t get_bit_rate(AVCodecContext *ctx)
1124 int bits_per_sample;
1126 switch (ctx->codec_type) {
1127 case AVMEDIA_TYPE_VIDEO:
1128 case AVMEDIA_TYPE_DATA:
1129 case AVMEDIA_TYPE_SUBTITLE:
1130 case AVMEDIA_TYPE_ATTACHMENT:
1131 bit_rate = ctx->bit_rate;
1133 case AVMEDIA_TYPE_AUDIO:
1134 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1135 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1144 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1148 ff_unlock_avcodec(codec);
1150 ret = avcodec_open2(avctx, codec, options);
1152 ff_lock_avcodec(avctx, codec);
1156 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1159 AVDictionary *tmp = NULL;
1161 if (avcodec_is_open(avctx))
1164 if ((!codec && !avctx->codec)) {
1165 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1166 return AVERROR(EINVAL);
1168 if ((codec && avctx->codec && codec != avctx->codec)) {
1169 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1170 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1171 return AVERROR(EINVAL);
1174 codec = avctx->codec;
1176 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1177 return AVERROR(EINVAL);
1180 av_dict_copy(&tmp, *options, 0);
1182 ret = ff_lock_avcodec(avctx, codec);
1186 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1187 if (!avctx->internal) {
1188 ret = AVERROR(ENOMEM);
1192 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1193 if (!avctx->internal->pool) {
1194 ret = AVERROR(ENOMEM);
1198 avctx->internal->to_free = av_frame_alloc();
1199 if (!avctx->internal->to_free) {
1200 ret = AVERROR(ENOMEM);
1204 if (codec->priv_data_size > 0) {
1205 if (!avctx->priv_data) {
1206 avctx->priv_data = av_mallocz(codec->priv_data_size);
1207 if (!avctx->priv_data) {
1208 ret = AVERROR(ENOMEM);
1211 if (codec->priv_class) {
1212 *(const AVClass **)avctx->priv_data = codec->priv_class;
1213 av_opt_set_defaults(avctx->priv_data);
1216 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1219 avctx->priv_data = NULL;
1221 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1224 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1225 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist\n", codec->name);
1226 ret = AVERROR(EINVAL);
1230 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
1231 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1232 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
1233 if (avctx->coded_width && avctx->coded_height)
1234 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1235 else if (avctx->width && avctx->height)
1236 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1241 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1242 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1243 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1244 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1245 ff_set_dimensions(avctx, 0, 0);
1248 if (avctx->width > 0 && avctx->height > 0) {
1249 if (av_image_check_sar(avctx->width, avctx->height,
1250 avctx->sample_aspect_ratio) < 0) {
1251 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1252 avctx->sample_aspect_ratio.num,
1253 avctx->sample_aspect_ratio.den);
1254 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1258 /* if the decoder init function was already called previously,
1259 * free the already allocated subtitle_header before overwriting it */
1260 if (av_codec_is_decoder(codec))
1261 av_freep(&avctx->subtitle_header);
1263 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1264 ret = AVERROR(EINVAL);
1268 avctx->codec = codec;
1269 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1270 avctx->codec_id == AV_CODEC_ID_NONE) {
1271 avctx->codec_type = codec->type;
1272 avctx->codec_id = codec->id;
1274 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1275 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1276 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1277 ret = AVERROR(EINVAL);
1280 avctx->frame_number = 0;
1281 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1283 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
1284 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1285 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1287 av_log(avctx, AV_LOG_ERROR,
1288 "The %s '%s' is experimental but experimental codecs are not enabled, "
1289 "add '-strict %d' if you want to use it.\n",
1290 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1291 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1292 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
1293 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1294 codec_string, codec2->name);
1295 ret = AVERROR_EXPERIMENTAL;
1299 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1300 (!avctx->time_base.num || !avctx->time_base.den)) {
1301 avctx->time_base.num = 1;
1302 avctx->time_base.den = avctx->sample_rate;
1306 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1308 if (CONFIG_FRAME_THREAD_ENCODER) {
1309 ff_unlock_avcodec(codec); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1310 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1311 ff_lock_avcodec(avctx, codec);
1317 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1318 ret = ff_thread_init(avctx);
1323 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
1324 avctx->thread_count = 1;
1326 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1327 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1328 avctx->codec->max_lowres);
1329 ret = AVERROR(EINVAL);
1334 if (avctx->debug_mv)
1335 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1336 "see the codecview filter instead.\n");
1339 if (av_codec_is_encoder(avctx->codec)) {
1341 #if FF_API_CODED_FRAME
1342 FF_DISABLE_DEPRECATION_WARNINGS
1343 avctx->coded_frame = av_frame_alloc();
1344 if (!avctx->coded_frame) {
1345 ret = AVERROR(ENOMEM);
1348 FF_ENABLE_DEPRECATION_WARNINGS
1350 if (avctx->codec->sample_fmts) {
1351 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1352 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1354 if (avctx->channels == 1 &&
1355 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1356 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1357 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1361 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1363 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1364 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1365 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1366 ret = AVERROR(EINVAL);
1370 if (avctx->codec->pix_fmts) {
1371 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1372 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1374 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1375 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1376 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1378 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1379 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1380 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1381 ret = AVERROR(EINVAL);
1384 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1385 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1386 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1387 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1388 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1389 avctx->color_range = AVCOL_RANGE_JPEG;
1391 if (avctx->codec->supported_samplerates) {
1392 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1393 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1395 if (avctx->codec->supported_samplerates[i] == 0) {
1396 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1397 avctx->sample_rate);
1398 ret = AVERROR(EINVAL);
1402 if (avctx->sample_rate < 0) {
1403 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1404 avctx->sample_rate);
1405 ret = AVERROR(EINVAL);
1408 if (avctx->codec->channel_layouts) {
1409 if (!avctx->channel_layout) {
1410 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1412 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1413 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1415 if (avctx->codec->channel_layouts[i] == 0) {
1417 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1418 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1419 ret = AVERROR(EINVAL);
1424 if (avctx->channel_layout && avctx->channels) {
1425 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1426 if (channels != avctx->channels) {
1428 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1429 av_log(avctx, AV_LOG_ERROR,
1430 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1431 buf, channels, avctx->channels);
1432 ret = AVERROR(EINVAL);
1435 } else if (avctx->channel_layout) {
1436 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1438 if (avctx->channels < 0) {
1439 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
1441 ret = AVERROR(EINVAL);
1444 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1445 if (avctx->width <= 0 || avctx->height <= 0) {
1446 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1447 ret = AVERROR(EINVAL);
1451 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1452 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1453 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", (int64_t)avctx->bit_rate, (int64_t)avctx->bit_rate);
1456 if (!avctx->rc_initial_buffer_occupancy)
1457 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1460 avctx->pts_correction_num_faulty_pts =
1461 avctx->pts_correction_num_faulty_dts = 0;
1462 avctx->pts_correction_last_pts =
1463 avctx->pts_correction_last_dts = INT64_MIN;
1465 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1466 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1467 av_log(avctx, AV_LOG_WARNING,
1468 "gray decoding requested but not enabled at configuration time\n");
1470 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1471 || avctx->internal->frame_thread_encoder)) {
1472 ret = avctx->codec->init(avctx);
1480 #if FF_API_AUDIOENC_DELAY
1481 if (av_codec_is_encoder(avctx->codec))
1482 avctx->delay = avctx->initial_padding;
1485 if (av_codec_is_decoder(avctx->codec)) {
1486 if (!avctx->bit_rate)
1487 avctx->bit_rate = get_bit_rate(avctx);
1488 /* validate channel layout from the decoder */
1489 if (avctx->channel_layout) {
1490 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1491 if (!avctx->channels)
1492 avctx->channels = channels;
1493 else if (channels != avctx->channels) {
1495 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1496 av_log(avctx, AV_LOG_WARNING,
1497 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1498 "ignoring specified channel layout\n",
1499 buf, channels, avctx->channels);
1500 avctx->channel_layout = 0;
1503 if (avctx->channels && avctx->channels < 0 ||
1504 avctx->channels > FF_SANE_NB_CHANNELS) {
1505 ret = AVERROR(EINVAL);
1508 if (avctx->sub_charenc) {
1509 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1510 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1511 "supported with subtitles codecs\n");
1512 ret = AVERROR(EINVAL);
1514 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1515 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1516 "subtitles character encoding will be ignored\n",
1517 avctx->codec_descriptor->name);
1518 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1520 /* input character encoding is set for a text based subtitle
1521 * codec at this point */
1522 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1523 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1525 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1527 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1528 if (cd == (iconv_t)-1) {
1529 ret = AVERROR(errno);
1530 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1531 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1536 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1537 "conversion needs a libavcodec built with iconv support "
1538 "for this codec\n");
1539 ret = AVERROR(ENOSYS);
1546 #if FF_API_AVCTX_TIMEBASE
1547 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1548 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1551 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1552 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1556 ff_unlock_avcodec(codec);
1558 av_dict_free(options);
1565 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1566 avctx->codec->close(avctx);
1568 if (codec->priv_class && codec->priv_data_size)
1569 av_opt_free(avctx->priv_data);
1572 #if FF_API_CODED_FRAME
1573 FF_DISABLE_DEPRECATION_WARNINGS
1574 av_frame_free(&avctx->coded_frame);
1575 FF_ENABLE_DEPRECATION_WARNINGS
1579 av_freep(&avctx->priv_data);
1580 if (avctx->internal) {
1581 av_frame_free(&avctx->internal->to_free);
1582 av_freep(&avctx->internal->pool);
1584 av_freep(&avctx->internal);
1585 avctx->codec = NULL;
1589 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1591 if (avpkt->size < 0) {
1592 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1593 return AVERROR(EINVAL);
1595 if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
1596 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1597 size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1598 return AVERROR(EINVAL);
1601 if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1602 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1603 if (!avpkt->data || avpkt->size < size) {
1604 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1605 avpkt->data = avctx->internal->byte_buffer;
1606 avpkt->size = avctx->internal->byte_buffer_size;
1611 AVBufferRef *buf = avpkt->buf;
1613 if (avpkt->size < size) {
1614 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1615 return AVERROR(EINVAL);
1618 av_init_packet(avpkt);
1623 int ret = av_new_packet(avpkt, size);
1625 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1630 int ff_alloc_packet(AVPacket *avpkt, int size)
1632 return ff_alloc_packet2(NULL, avpkt, size, 0);
1636 * Pad last frame with silence.
1638 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1640 AVFrame *frame = NULL;
1643 if (!(frame = av_frame_alloc()))
1644 return AVERROR(ENOMEM);
1646 frame->format = src->format;
1647 frame->channel_layout = src->channel_layout;
1648 av_frame_set_channels(frame, av_frame_get_channels(src));
1649 frame->nb_samples = s->frame_size;
1650 ret = av_frame_get_buffer(frame, 32);
1654 ret = av_frame_copy_props(frame, src);
1658 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1659 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1661 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1662 frame->nb_samples - src->nb_samples,
1663 s->channels, s->sample_fmt)) < 0)
1671 av_frame_free(&frame);
1675 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1677 const AVFrame *frame,
1678 int *got_packet_ptr)
1680 AVFrame *extended_frame = NULL;
1681 AVFrame *padded_frame = NULL;
1683 AVPacket user_pkt = *avpkt;
1684 int needs_realloc = !user_pkt.data;
1686 *got_packet_ptr = 0;
1688 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1689 av_free_packet(avpkt);
1690 av_init_packet(avpkt);
1694 /* ensure that extended_data is properly set */
1695 if (frame && !frame->extended_data) {
1696 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1697 avctx->channels > AV_NUM_DATA_POINTERS) {
1698 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1699 "with more than %d channels, but extended_data is not set.\n",
1700 AV_NUM_DATA_POINTERS);
1701 return AVERROR(EINVAL);
1703 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1705 extended_frame = av_frame_alloc();
1706 if (!extended_frame)
1707 return AVERROR(ENOMEM);
1709 memcpy(extended_frame, frame, sizeof(AVFrame));
1710 extended_frame->extended_data = extended_frame->data;
1711 frame = extended_frame;
1714 /* extract audio service type metadata */
1716 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1717 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1718 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1721 /* check for valid frame size */
1723 if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
1724 if (frame->nb_samples > avctx->frame_size) {
1725 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1726 ret = AVERROR(EINVAL);
1729 } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1730 if (frame->nb_samples < avctx->frame_size &&
1731 !avctx->internal->last_audio_frame) {
1732 ret = pad_last_frame(avctx, &padded_frame, frame);
1736 frame = padded_frame;
1737 avctx->internal->last_audio_frame = 1;
1740 if (frame->nb_samples != avctx->frame_size) {
1741 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1742 ret = AVERROR(EINVAL);
1748 av_assert0(avctx->codec->encode2);
1750 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1752 if (*got_packet_ptr) {
1753 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1754 if (avpkt->pts == AV_NOPTS_VALUE)
1755 avpkt->pts = frame->pts;
1756 if (!avpkt->duration)
1757 avpkt->duration = ff_samples_to_time_base(avctx,
1760 avpkt->dts = avpkt->pts;
1765 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1767 if (user_pkt.data) {
1768 if (user_pkt.size >= avpkt->size) {
1769 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1771 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1772 avpkt->size = user_pkt.size;
1775 avpkt->buf = user_pkt.buf;
1776 avpkt->data = user_pkt.data;
1778 if (av_dup_packet(avpkt) < 0) {
1779 ret = AVERROR(ENOMEM);
1785 if (needs_realloc && avpkt->data) {
1786 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1788 avpkt->data = avpkt->buf->data;
1791 avctx->frame_number++;
1794 if (ret < 0 || !*got_packet_ptr) {
1795 av_free_packet(avpkt);
1796 av_init_packet(avpkt);
1800 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1801 * this needs to be moved to the encoders, but for now we can do it
1802 * here to simplify things */
1803 avpkt->flags |= AV_PKT_FLAG_KEY;
1806 av_frame_free(&padded_frame);
1807 av_free(extended_frame);
1809 #if FF_API_AUDIOENC_DELAY
1810 avctx->delay = avctx->initial_padding;
1816 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1818 const AVFrame *frame,
1819 int *got_packet_ptr)
1822 AVPacket user_pkt = *avpkt;
1823 int needs_realloc = !user_pkt.data;
1825 *got_packet_ptr = 0;
1827 if(CONFIG_FRAME_THREAD_ENCODER &&
1828 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1829 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1831 if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
1832 avctx->stats_out[0] = '\0';
1834 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1835 av_free_packet(avpkt);
1836 av_init_packet(avpkt);
1841 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1842 return AVERROR(EINVAL);
1844 if (frame && frame->format == AV_PIX_FMT_NONE)
1845 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
1846 if (frame && (frame->width == 0 || frame->height == 0))
1847 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
1849 av_assert0(avctx->codec->encode2);
1851 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1852 av_assert0(ret <= 0);
1854 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1856 if (user_pkt.data) {
1857 if (user_pkt.size >= avpkt->size) {
1858 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1860 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1861 avpkt->size = user_pkt.size;
1864 avpkt->buf = user_pkt.buf;
1865 avpkt->data = user_pkt.data;
1867 if (av_dup_packet(avpkt) < 0) {
1868 ret = AVERROR(ENOMEM);
1874 if (!*got_packet_ptr)
1876 else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
1877 avpkt->pts = avpkt->dts = frame->pts;
1879 if (needs_realloc && avpkt->data) {
1880 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1882 avpkt->data = avpkt->buf->data;
1885 avctx->frame_number++;
1888 if (ret < 0 || !*got_packet_ptr)
1889 av_free_packet(avpkt);
1895 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1896 const AVSubtitle *sub)
1899 if (sub->start_display_time) {
1900 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
1904 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
1905 avctx->frame_number++;
1910 * Attempt to guess proper monotonic timestamps for decoded video frames
1911 * which might have incorrect times. Input timestamps may wrap around, in
1912 * which case the output will as well.
1914 * @param pts the pts field of the decoded AVPacket, as passed through
1916 * @param dts the dts field of the decoded AVPacket
1917 * @return one of the input values, may be AV_NOPTS_VALUE
1919 static int64_t guess_correct_pts(AVCodecContext *ctx,
1920 int64_t reordered_pts, int64_t dts)
1922 int64_t pts = AV_NOPTS_VALUE;
1924 if (dts != AV_NOPTS_VALUE) {
1925 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
1926 ctx->pts_correction_last_dts = dts;
1927 } else if (reordered_pts != AV_NOPTS_VALUE)
1928 ctx->pts_correction_last_dts = reordered_pts;
1930 if (reordered_pts != AV_NOPTS_VALUE) {
1931 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
1932 ctx->pts_correction_last_pts = reordered_pts;
1933 } else if(dts != AV_NOPTS_VALUE)
1934 ctx->pts_correction_last_pts = dts;
1936 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
1937 && reordered_pts != AV_NOPTS_VALUE)
1938 pts = reordered_pts;
1945 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
1948 const uint8_t *data;
1952 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
1956 if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
1957 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
1958 "changes, but PARAM_CHANGE side data was sent to it.\n");
1959 return AVERROR(EINVAL);
1965 flags = bytestream_get_le32(&data);
1968 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
1971 val = bytestream_get_le32(&data);
1972 if (val <= 0 || val > INT_MAX) {
1973 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
1974 return AVERROR_INVALIDDATA;
1976 avctx->channels = val;
1979 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
1982 avctx->channel_layout = bytestream_get_le64(&data);
1985 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
1988 val = bytestream_get_le32(&data);
1989 if (val <= 0 || val > INT_MAX) {
1990 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
1991 return AVERROR_INVALIDDATA;
1993 avctx->sample_rate = val;
1996 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
1999 avctx->width = bytestream_get_le32(&data);
2000 avctx->height = bytestream_get_le32(&data);
2002 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2009 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2010 return AVERROR_INVALIDDATA;
2013 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2017 /* move the original frame to our backup */
2018 av_frame_unref(avci->to_free);
2019 av_frame_move_ref(avci->to_free, frame);
2021 /* now copy everything except the AVBufferRefs back
2022 * note that we make a COPY of the side data, so calling av_frame_free() on
2023 * the caller's frame will work properly */
2024 ret = av_frame_copy_props(frame, avci->to_free);
2028 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2029 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2030 if (avci->to_free->extended_data != avci->to_free->data) {
2031 int planes = av_frame_get_channels(avci->to_free);
2032 int size = planes * sizeof(*frame->extended_data);
2035 av_frame_unref(frame);
2039 frame->extended_data = av_malloc(size);
2040 if (!frame->extended_data) {
2041 av_frame_unref(frame);
2042 return AVERROR(ENOMEM);
2044 memcpy(frame->extended_data, avci->to_free->extended_data,
2047 frame->extended_data = frame->data;
2049 frame->format = avci->to_free->format;
2050 frame->width = avci->to_free->width;
2051 frame->height = avci->to_free->height;
2052 frame->channel_layout = avci->to_free->channel_layout;
2053 frame->nb_samples = avci->to_free->nb_samples;
2054 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2059 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2060 int *got_picture_ptr,
2061 const AVPacket *avpkt)
2063 AVCodecInternal *avci = avctx->internal;
2065 // copy to ensure we do not change avpkt
2066 AVPacket tmp = *avpkt;
2069 return AVERROR(EINVAL);
2070 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2071 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2072 return AVERROR(EINVAL);
2075 *got_picture_ptr = 0;
2076 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2077 return AVERROR(EINVAL);
2079 av_frame_unref(picture);
2081 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2082 (avctx->active_thread_type & FF_THREAD_FRAME)) {
2083 int did_split = av_packet_split_side_data(&tmp);
2084 ret = apply_param_change(avctx, &tmp);
2086 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2087 if (avctx->err_recognition & AV_EF_EXPLODE)
2091 avctx->internal->pkt = &tmp;
2092 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2093 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2096 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2098 if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
2099 picture->pkt_dts = avpkt->dts;
2101 if(!avctx->has_b_frames){
2102 av_frame_set_pkt_pos(picture, avpkt->pos);
2104 //FIXME these should be under if(!avctx->has_b_frames)
2105 /* get_buffer is supposed to set frame parameters */
2106 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2107 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2108 if (!picture->width) picture->width = avctx->width;
2109 if (!picture->height) picture->height = avctx->height;
2110 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2115 emms_c(); //needed to avoid an emms_c() call before every return;
2117 avctx->internal->pkt = NULL;
2119 av_packet_free_side_data(&tmp);
2124 if (*got_picture_ptr) {
2125 if (!avctx->refcounted_frames) {
2126 int err = unrefcount_frame(avci, picture);
2131 avctx->frame_number++;
2132 av_frame_set_best_effort_timestamp(picture,
2133 guess_correct_pts(avctx,
2137 av_frame_unref(picture);
2141 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2142 * make sure it's set correctly */
2143 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2145 #if FF_API_AVCTX_TIMEBASE
2146 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2147 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2153 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2156 const AVPacket *avpkt)
2158 AVCodecInternal *avci = avctx->internal;
2163 if (!avpkt->data && avpkt->size) {
2164 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2165 return AVERROR(EINVAL);
2168 return AVERROR(EINVAL);
2169 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2170 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2171 return AVERROR(EINVAL);
2174 av_frame_unref(frame);
2176 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2179 uint32_t discard_padding = 0;
2180 uint8_t skip_reason = 0;
2181 uint8_t discard_reason = 0;
2182 // copy to ensure we do not change avpkt
2183 AVPacket tmp = *avpkt;
2184 int did_split = av_packet_split_side_data(&tmp);
2185 ret = apply_param_change(avctx, &tmp);
2187 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2188 if (avctx->err_recognition & AV_EF_EXPLODE)
2192 avctx->internal->pkt = &tmp;
2193 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2194 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2196 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2197 av_assert0(ret <= tmp.size);
2198 frame->pkt_dts = avpkt->dts;
2200 if (ret >= 0 && *got_frame_ptr) {
2201 avctx->frame_number++;
2202 av_frame_set_best_effort_timestamp(frame,
2203 guess_correct_pts(avctx,
2206 if (frame->format == AV_SAMPLE_FMT_NONE)
2207 frame->format = avctx->sample_fmt;
2208 if (!frame->channel_layout)
2209 frame->channel_layout = avctx->channel_layout;
2210 if (!av_frame_get_channels(frame))
2211 av_frame_set_channels(frame, avctx->channels);
2212 if (!frame->sample_rate)
2213 frame->sample_rate = avctx->sample_rate;
2216 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2217 if(side && side_size>=10) {
2218 avctx->internal->skip_samples = AV_RL32(side);
2219 discard_padding = AV_RL32(side + 4);
2220 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2221 avctx->internal->skip_samples, (int)discard_padding);
2222 skip_reason = AV_RL8(side + 8);
2223 discard_reason = AV_RL8(side + 9);
2225 if (avctx->internal->skip_samples && *got_frame_ptr &&
2226 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2227 if(frame->nb_samples <= avctx->internal->skip_samples){
2229 avctx->internal->skip_samples -= frame->nb_samples;
2230 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2231 avctx->internal->skip_samples);
2233 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2234 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2235 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2236 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2237 (AVRational){1, avctx->sample_rate},
2238 avctx->pkt_timebase);
2239 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2240 frame->pkt_pts += diff_ts;
2241 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2242 frame->pkt_dts += diff_ts;
2243 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2244 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2246 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2248 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2249 avctx->internal->skip_samples, frame->nb_samples);
2250 frame->nb_samples -= avctx->internal->skip_samples;
2251 avctx->internal->skip_samples = 0;
2255 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2256 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2257 if (discard_padding == frame->nb_samples) {
2260 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2261 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2262 (AVRational){1, avctx->sample_rate},
2263 avctx->pkt_timebase);
2264 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2265 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2267 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2269 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2270 (int)discard_padding, frame->nb_samples);
2271 frame->nb_samples -= discard_padding;
2275 if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2276 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2278 AV_WL32(fside->data, avctx->internal->skip_samples);
2279 AV_WL32(fside->data + 4, discard_padding);
2280 AV_WL8(fside->data + 8, skip_reason);
2281 AV_WL8(fside->data + 9, discard_reason);
2282 avctx->internal->skip_samples = 0;
2286 avctx->internal->pkt = NULL;
2288 av_packet_free_side_data(&tmp);
2293 if (ret >= 0 && *got_frame_ptr) {
2294 if (!avctx->refcounted_frames) {
2295 int err = unrefcount_frame(avci, frame);
2300 av_frame_unref(frame);
2306 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2307 static int recode_subtitle(AVCodecContext *avctx,
2308 AVPacket *outpkt, const AVPacket *inpkt)
2311 iconv_t cd = (iconv_t)-1;
2318 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2322 cd = iconv_open("UTF-8", avctx->sub_charenc);
2323 av_assert0(cd != (iconv_t)-1);
2328 if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2329 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2330 ret = AVERROR(ENOMEM);
2334 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2337 outpkt->buf = tmp.buf;
2338 outpkt->data = tmp.data;
2339 outpkt->size = tmp.size;
2340 outb = outpkt->data;
2341 outl = outpkt->size;
2343 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2344 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2345 outl >= outpkt->size || inl != 0) {
2346 ret = FFMIN(AVERROR(errno), -1);
2347 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2348 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2349 av_free_packet(&tmp);
2352 outpkt->size -= outl;
2353 memset(outpkt->data + outpkt->size, 0, outl);
2356 if (cd != (iconv_t)-1)
2360 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2361 return AVERROR(EINVAL);
2365 static int utf8_check(const uint8_t *str)
2367 const uint8_t *byte;
2368 uint32_t codepoint, min;
2372 GET_UTF8(codepoint, *(byte++), return 0;);
2373 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2374 1 << (5 * (byte - str) - 4);
2375 if (codepoint < min || codepoint >= 0x110000 ||
2376 codepoint == 0xFFFE /* BOM */ ||
2377 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2384 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2390 if (!avpkt->data && avpkt->size) {
2391 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2392 return AVERROR(EINVAL);
2395 return AVERROR(EINVAL);
2396 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2397 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2398 return AVERROR(EINVAL);
2402 get_subtitle_defaults(sub);
2404 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2405 AVPacket pkt_recoded;
2406 AVPacket tmp = *avpkt;
2407 int did_split = av_packet_split_side_data(&tmp);
2408 //apply_param_change(avctx, &tmp);
2411 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2413 * If the side data is smaller than the buffer padding size, the
2414 * remaining bytes should have already been filled with zeros by the
2415 * original packet allocation anyway. */
2416 memset(tmp.data + tmp.size, 0,
2417 FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2421 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2425 avctx->internal->pkt = &pkt_recoded;
2427 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2428 sub->pts = av_rescale_q(avpkt->pts,
2429 avctx->pkt_timebase, AV_TIME_BASE_Q);
2430 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2431 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2432 !!*got_sub_ptr >= !!sub->num_rects);
2434 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2435 avctx->pkt_timebase.num) {
2436 AVRational ms = { 1, 1000 };
2437 sub->end_display_time = av_rescale_q(avpkt->duration,
2438 avctx->pkt_timebase, ms);
2441 for (i = 0; i < sub->num_rects; i++) {
2442 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2443 av_log(avctx, AV_LOG_ERROR,
2444 "Invalid UTF-8 in decoded subtitles text; "
2445 "maybe missing -sub_charenc option\n");
2446 avsubtitle_free(sub);
2447 return AVERROR_INVALIDDATA;
2451 if (tmp.data != pkt_recoded.data) { // did we recode?
2452 /* prevent from destroying side data from original packet */
2453 pkt_recoded.side_data = NULL;
2454 pkt_recoded.side_data_elems = 0;
2456 av_free_packet(&pkt_recoded);
2458 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2460 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2462 avctx->internal->pkt = NULL;
2466 av_packet_free_side_data(&tmp);
2472 avctx->frame_number++;
2478 void avsubtitle_free(AVSubtitle *sub)
2482 for (i = 0; i < sub->num_rects; i++) {
2483 av_freep(&sub->rects[i]->pict.data[0]);
2484 av_freep(&sub->rects[i]->pict.data[1]);
2485 av_freep(&sub->rects[i]->pict.data[2]);
2486 av_freep(&sub->rects[i]->pict.data[3]);
2487 av_freep(&sub->rects[i]->text);
2488 av_freep(&sub->rects[i]->ass);
2489 av_freep(&sub->rects[i]);
2492 av_freep(&sub->rects);
2494 memset(sub, 0, sizeof(AVSubtitle));
2497 av_cold int avcodec_close(AVCodecContext *avctx)
2502 if (avcodec_is_open(avctx)) {
2503 FramePool *pool = avctx->internal->pool;
2505 if (CONFIG_FRAME_THREAD_ENCODER &&
2506 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2507 ff_frame_thread_encoder_free(avctx);
2509 if (HAVE_THREADS && avctx->internal->thread_ctx)
2510 ff_thread_free(avctx);
2511 if (avctx->codec && avctx->codec->close)
2512 avctx->codec->close(avctx);
2513 avctx->internal->byte_buffer_size = 0;
2514 av_freep(&avctx->internal->byte_buffer);
2515 av_frame_free(&avctx->internal->to_free);
2516 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2517 av_buffer_pool_uninit(&pool->pools[i]);
2518 av_freep(&avctx->internal->pool);
2520 if (avctx->hwaccel && avctx->hwaccel->uninit)
2521 avctx->hwaccel->uninit(avctx);
2522 av_freep(&avctx->internal->hwaccel_priv_data);
2524 av_freep(&avctx->internal);
2527 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2528 av_opt_free(avctx->priv_data);
2530 av_freep(&avctx->priv_data);
2531 if (av_codec_is_encoder(avctx->codec)) {
2532 av_freep(&avctx->extradata);
2533 #if FF_API_CODED_FRAME
2534 FF_DISABLE_DEPRECATION_WARNINGS
2535 av_frame_free(&avctx->coded_frame);
2536 FF_ENABLE_DEPRECATION_WARNINGS
2539 avctx->codec = NULL;
2540 avctx->active_thread_type = 0;
2545 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2548 //This is for future deprecatec codec ids, its empty since
2549 //last major bump but will fill up again over time, please don't remove it
2550 default : return id;
2554 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2556 AVCodec *p, *experimental = NULL;
2558 id= remap_deprecated_codec_id(id);
2560 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2562 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
2569 return experimental;
2572 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2574 return find_encdec(id, 1);
2577 AVCodec *avcodec_find_encoder_by_name(const char *name)
2584 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2591 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2593 return find_encdec(id, 0);
2596 AVCodec *avcodec_find_decoder_by_name(const char *name)
2603 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2610 const char *avcodec_get_name(enum AVCodecID id)
2612 const AVCodecDescriptor *cd;
2615 if (id == AV_CODEC_ID_NONE)
2617 cd = avcodec_descriptor_get(id);
2620 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
2621 codec = avcodec_find_decoder(id);
2624 codec = avcodec_find_encoder(id);
2627 return "unknown_codec";
2630 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
2632 int i, len, ret = 0;
2634 #define TAG_PRINT(x) \
2635 (((x) >= '0' && (x) <= '9') || \
2636 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
2637 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
2639 for (i = 0; i < 4; i++) {
2640 len = snprintf(buf, buf_size,
2641 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
2643 buf_size = buf_size > len ? buf_size - len : 0;
2650 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
2652 const char *codec_type;
2653 const char *codec_name;
2654 const char *profile = NULL;
2658 AVRational display_aspect_ratio;
2659 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
2661 if (!buf || buf_size <= 0)
2663 codec_type = av_get_media_type_string(enc->codec_type);
2664 codec_name = avcodec_get_name(enc->codec_id);
2665 if (enc->profile != FF_PROFILE_UNKNOWN) {
2669 p = encode ? avcodec_find_encoder(enc->codec_id) :
2670 avcodec_find_decoder(enc->codec_id);
2672 profile = av_get_profile_name(p, enc->profile);
2675 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
2677 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
2679 if (enc->codec && strcmp(enc->codec->name, codec_name))
2680 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
2683 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
2684 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
2685 && av_log_get_level() >= AV_LOG_VERBOSE
2687 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2688 ", %d reference frame%s",
2689 enc->refs, enc->refs > 1 ? "s" : "");
2691 if (enc->codec_tag) {
2693 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
2694 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2695 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
2698 switch (enc->codec_type) {
2699 case AVMEDIA_TYPE_VIDEO:
2701 char detail[256] = "(";
2703 av_strlcat(buf, separator, buf_size);
2705 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2706 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
2707 av_get_pix_fmt_name(enc->pix_fmt));
2708 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
2709 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
2710 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
2711 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
2712 av_strlcatf(detail, sizeof(detail), "%s, ",
2713 av_color_range_name(enc->color_range));
2715 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
2716 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
2717 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
2718 if (enc->colorspace != (int)enc->color_primaries ||
2719 enc->colorspace != (int)enc->color_trc) {
2721 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
2722 av_color_space_name(enc->colorspace),
2723 av_color_primaries_name(enc->color_primaries),
2724 av_color_transfer_name(enc->color_trc));
2726 av_strlcatf(detail, sizeof(detail), "%s, ",
2727 av_get_colorspace_name(enc->colorspace));
2730 if (av_log_get_level() >= AV_LOG_DEBUG &&
2731 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
2732 av_strlcatf(detail, sizeof(detail), "%s, ",
2733 av_chroma_location_name(enc->chroma_sample_location));
2735 if (strlen(detail) > 1) {
2736 detail[strlen(detail) - 2] = 0;
2737 av_strlcatf(buf, buf_size, "%s)", detail);
2742 av_strlcat(buf, new_line ? separator : ", ", buf_size);
2744 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2746 enc->width, enc->height);
2748 if (av_log_get_level() >= AV_LOG_VERBOSE &&
2749 (enc->width != enc->coded_width ||
2750 enc->height != enc->coded_height))
2751 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2752 " (%dx%d)", enc->coded_width, enc->coded_height);
2754 if (enc->sample_aspect_ratio.num) {
2755 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
2756 enc->width * enc->sample_aspect_ratio.num,
2757 enc->height * enc->sample_aspect_ratio.den,
2759 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2760 " [SAR %d:%d DAR %d:%d]",
2761 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
2762 display_aspect_ratio.num, display_aspect_ratio.den);
2764 if (av_log_get_level() >= AV_LOG_DEBUG) {
2765 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2766 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2768 enc->time_base.num / g, enc->time_base.den / g);
2772 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2773 ", q=%d-%d", enc->qmin, enc->qmax);
2775 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
2776 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2777 ", Closed Captions");
2778 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
2779 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2783 case AVMEDIA_TYPE_AUDIO:
2784 av_strlcat(buf, separator, buf_size);
2786 if (enc->sample_rate) {
2787 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2788 "%d Hz, ", enc->sample_rate);
2790 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
2791 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
2792 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2793 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
2795 if ( enc->bits_per_raw_sample > 0
2796 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
2797 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2798 " (%d bit)", enc->bits_per_raw_sample);
2800 case AVMEDIA_TYPE_DATA:
2801 if (av_log_get_level() >= AV_LOG_DEBUG) {
2802 int g = av_gcd(enc->time_base.num, enc->time_base.den);
2804 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2806 enc->time_base.num / g, enc->time_base.den / g);
2809 case AVMEDIA_TYPE_SUBTITLE:
2811 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2812 ", %dx%d", enc->width, enc->height);
2818 if (enc->flags & AV_CODEC_FLAG_PASS1)
2819 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2821 if (enc->flags & AV_CODEC_FLAG_PASS2)
2822 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2825 bitrate = get_bit_rate(enc);
2827 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2828 ", %"PRId64" kb/s", bitrate / 1000);
2829 } else if (enc->rc_max_rate > 0) {
2830 snprintf(buf + strlen(buf), buf_size - strlen(buf),
2831 ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000);
2835 const char *av_get_profile_name(const AVCodec *codec, int profile)
2838 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
2841 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
2842 if (p->profile == profile)
2848 unsigned avcodec_version(void)
2850 // av_assert0(AV_CODEC_ID_V410==164);
2851 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
2852 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
2853 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
2854 av_assert0(AV_CODEC_ID_SRT==94216);
2855 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
2857 return LIBAVCODEC_VERSION_INT;
2860 const char *avcodec_configuration(void)
2862 return FFMPEG_CONFIGURATION;
2865 const char *avcodec_license(void)
2867 #define LICENSE_PREFIX "libavcodec license: "
2868 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
2871 void avcodec_flush_buffers(AVCodecContext *avctx)
2873 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2874 ff_thread_flush(avctx);
2875 else if (avctx->codec->flush)
2876 avctx->codec->flush(avctx);
2878 avctx->pts_correction_last_pts =
2879 avctx->pts_correction_last_dts = INT64_MIN;
2881 if (!avctx->refcounted_frames)
2882 av_frame_unref(avctx->internal->to_free);
2885 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
2888 case AV_CODEC_ID_8SVX_EXP:
2889 case AV_CODEC_ID_8SVX_FIB:
2890 case AV_CODEC_ID_ADPCM_CT:
2891 case AV_CODEC_ID_ADPCM_IMA_APC:
2892 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
2893 case AV_CODEC_ID_ADPCM_IMA_OKI:
2894 case AV_CODEC_ID_ADPCM_IMA_WS:
2895 case AV_CODEC_ID_ADPCM_G722:
2896 case AV_CODEC_ID_ADPCM_YAMAHA:
2898 case AV_CODEC_ID_DSD_LSBF:
2899 case AV_CODEC_ID_DSD_MSBF:
2900 case AV_CODEC_ID_DSD_LSBF_PLANAR:
2901 case AV_CODEC_ID_DSD_MSBF_PLANAR:
2902 case AV_CODEC_ID_PCM_ALAW:
2903 case AV_CODEC_ID_PCM_MULAW:
2904 case AV_CODEC_ID_PCM_S8:
2905 case AV_CODEC_ID_PCM_S8_PLANAR:
2906 case AV_CODEC_ID_PCM_U8:
2907 case AV_CODEC_ID_PCM_ZORK:
2909 case AV_CODEC_ID_PCM_S16BE:
2910 case AV_CODEC_ID_PCM_S16BE_PLANAR:
2911 case AV_CODEC_ID_PCM_S16LE:
2912 case AV_CODEC_ID_PCM_S16LE_PLANAR:
2913 case AV_CODEC_ID_PCM_U16BE:
2914 case AV_CODEC_ID_PCM_U16LE:
2916 case AV_CODEC_ID_PCM_S24DAUD:
2917 case AV_CODEC_ID_PCM_S24BE:
2918 case AV_CODEC_ID_PCM_S24LE:
2919 case AV_CODEC_ID_PCM_S24LE_PLANAR:
2920 case AV_CODEC_ID_PCM_U24BE:
2921 case AV_CODEC_ID_PCM_U24LE:
2923 case AV_CODEC_ID_PCM_S32BE:
2924 case AV_CODEC_ID_PCM_S32LE:
2925 case AV_CODEC_ID_PCM_S32LE_PLANAR:
2926 case AV_CODEC_ID_PCM_U32BE:
2927 case AV_CODEC_ID_PCM_U32LE:
2928 case AV_CODEC_ID_PCM_F32BE:
2929 case AV_CODEC_ID_PCM_F32LE:
2931 case AV_CODEC_ID_PCM_F64BE:
2932 case AV_CODEC_ID_PCM_F64LE:
2939 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
2941 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
2942 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
2943 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
2944 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
2945 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
2946 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
2947 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
2948 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
2949 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
2950 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
2951 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
2953 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
2954 return AV_CODEC_ID_NONE;
2955 if (be < 0 || be > 1)
2957 return map[fmt][be];
2960 int av_get_bits_per_sample(enum AVCodecID codec_id)
2963 case AV_CODEC_ID_ADPCM_SBPRO_2:
2965 case AV_CODEC_ID_ADPCM_SBPRO_3:
2967 case AV_CODEC_ID_ADPCM_SBPRO_4:
2968 case AV_CODEC_ID_ADPCM_IMA_WAV:
2969 case AV_CODEC_ID_ADPCM_IMA_QT:
2970 case AV_CODEC_ID_ADPCM_SWF:
2971 case AV_CODEC_ID_ADPCM_MS:
2974 return av_get_exact_bits_per_sample(codec_id);
2978 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
2980 int id, sr, ch, ba, tag, bps;
2982 id = avctx->codec_id;
2983 sr = avctx->sample_rate;
2984 ch = avctx->channels;
2985 ba = avctx->block_align;
2986 tag = avctx->codec_tag;
2987 bps = av_get_exact_bits_per_sample(avctx->codec_id);
2989 /* codecs with an exact constant bits per sample */
2990 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
2991 return (frame_bytes * 8LL) / (bps * ch);
2992 bps = avctx->bits_per_coded_sample;
2994 /* codecs with a fixed packet duration */
2996 case AV_CODEC_ID_ADPCM_ADX: return 32;
2997 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
2998 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
2999 case AV_CODEC_ID_AMR_NB:
3000 case AV_CODEC_ID_EVRC:
3001 case AV_CODEC_ID_GSM:
3002 case AV_CODEC_ID_QCELP:
3003 case AV_CODEC_ID_RA_288: return 160;
3004 case AV_CODEC_ID_AMR_WB:
3005 case AV_CODEC_ID_GSM_MS: return 320;
3006 case AV_CODEC_ID_MP1: return 384;
3007 case AV_CODEC_ID_ATRAC1: return 512;
3008 case AV_CODEC_ID_ATRAC3: return 1024;
3009 case AV_CODEC_ID_ATRAC3P: return 2048;
3010 case AV_CODEC_ID_MP2:
3011 case AV_CODEC_ID_MUSEPACK7: return 1152;
3012 case AV_CODEC_ID_AC3: return 1536;
3016 /* calc from sample rate */
3017 if (id == AV_CODEC_ID_TTA)
3018 return 256 * sr / 245;
3021 /* calc from sample rate and channels */
3022 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3023 return (480 << (sr / 22050)) / ch;
3028 /* calc from block_align */
3029 if (id == AV_CODEC_ID_SIPR) {
3031 case 20: return 160;
3032 case 19: return 144;
3033 case 29: return 288;
3034 case 37: return 480;
3036 } else if (id == AV_CODEC_ID_ILBC) {
3038 case 38: return 160;
3039 case 50: return 240;
3044 if (frame_bytes > 0) {
3045 /* calc from frame_bytes only */
3046 if (id == AV_CODEC_ID_TRUESPEECH)
3047 return 240 * (frame_bytes / 32);
3048 if (id == AV_CODEC_ID_NELLYMOSER)
3049 return 256 * (frame_bytes / 64);
3050 if (id == AV_CODEC_ID_RA_144)
3051 return 160 * (frame_bytes / 20);
3052 if (id == AV_CODEC_ID_G723_1)
3053 return 240 * (frame_bytes / 24);
3056 /* calc from frame_bytes and bits_per_coded_sample */
3057 if (id == AV_CODEC_ID_ADPCM_G726)
3058 return frame_bytes * 8 / bps;
3062 /* calc from frame_bytes and channels */
3064 case AV_CODEC_ID_ADPCM_AFC:
3065 return frame_bytes / (9 * ch) * 16;
3066 case AV_CODEC_ID_ADPCM_DTK:
3067 return frame_bytes / (16 * ch) * 28;
3068 case AV_CODEC_ID_ADPCM_4XM:
3069 case AV_CODEC_ID_ADPCM_IMA_ISS:
3070 return (frame_bytes - 4 * ch) * 2 / ch;
3071 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3072 return (frame_bytes - 4) * 2 / ch;
3073 case AV_CODEC_ID_ADPCM_IMA_AMV:
3074 return (frame_bytes - 8) * 2 / ch;
3075 case AV_CODEC_ID_ADPCM_THP:
3076 case AV_CODEC_ID_ADPCM_THP_LE:
3077 if (avctx->extradata)
3078 return frame_bytes * 14 / (8 * ch);
3080 case AV_CODEC_ID_ADPCM_XA:
3081 return (frame_bytes / 128) * 224 / ch;
3082 case AV_CODEC_ID_INTERPLAY_DPCM:
3083 return (frame_bytes - 6 - ch) / ch;
3084 case AV_CODEC_ID_ROQ_DPCM:
3085 return (frame_bytes - 8) / ch;
3086 case AV_CODEC_ID_XAN_DPCM:
3087 return (frame_bytes - 2 * ch) / ch;
3088 case AV_CODEC_ID_MACE3:
3089 return 3 * frame_bytes / ch;
3090 case AV_CODEC_ID_MACE6:
3091 return 6 * frame_bytes / ch;
3092 case AV_CODEC_ID_PCM_LXF:
3093 return 2 * (frame_bytes / (5 * ch));
3094 case AV_CODEC_ID_IAC:
3095 case AV_CODEC_ID_IMC:
3096 return 4 * frame_bytes / ch;
3100 /* calc from frame_bytes, channels, and codec_tag */
3101 if (id == AV_CODEC_ID_SOL_DPCM) {
3103 return frame_bytes / ch;
3105 return frame_bytes * 2 / ch;
3110 /* calc from frame_bytes, channels, and block_align */
3111 int blocks = frame_bytes / ba;
3112 switch (avctx->codec_id) {
3113 case AV_CODEC_ID_ADPCM_IMA_WAV:
3114 if (bps < 2 || bps > 5)
3116 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3117 case AV_CODEC_ID_ADPCM_IMA_DK3:
3118 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3119 case AV_CODEC_ID_ADPCM_IMA_DK4:
3120 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3121 case AV_CODEC_ID_ADPCM_IMA_RAD:
3122 return blocks * ((ba - 4 * ch) * 2 / ch);
3123 case AV_CODEC_ID_ADPCM_MS:
3124 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3129 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3130 switch (avctx->codec_id) {
3131 case AV_CODEC_ID_PCM_DVD:
3134 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3135 case AV_CODEC_ID_PCM_BLURAY:
3138 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3139 case AV_CODEC_ID_S302M:
3140 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3146 /* Fall back on using frame_size */
3147 if (avctx->frame_size > 1 && frame_bytes)
3148 return avctx->frame_size;
3150 //For WMA we currently have no other means to calculate duration thus we
3151 //do it here by assuming CBR, which is true for all known cases.
3152 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3153 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3154 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3161 int ff_thread_init(AVCodecContext *s)
3168 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3182 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3185 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3189 #if FF_API_MISSING_SAMPLE
3190 FF_DISABLE_DEPRECATION_WARNINGS
3191 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3193 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3194 "version to the newest one from Git. If the problem still "
3195 "occurs, it means that your file has a feature which has not "
3196 "been implemented.\n", feature);
3198 av_log_ask_for_sample(avc, NULL);
3201 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3203 va_list argument_list;
3205 va_start(argument_list, msg);
3208 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3209 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3210 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3211 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3213 va_end(argument_list);
3215 FF_ENABLE_DEPRECATION_WARNINGS
3216 #endif /* FF_API_MISSING_SAMPLE */
3218 static AVHWAccel *first_hwaccel = NULL;
3219 static AVHWAccel **last_hwaccel = &first_hwaccel;
3221 void av_register_hwaccel(AVHWAccel *hwaccel)
3223 AVHWAccel **p = last_hwaccel;
3224 hwaccel->next = NULL;
3225 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3227 last_hwaccel = &hwaccel->next;
3230 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3232 return hwaccel ? hwaccel->next : first_hwaccel;
3235 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3238 // There is no good way to rollback a failure to destroy the
3239 // mutex, so we ignore failures.
3240 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3241 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3244 avformat_mutex = NULL;
3248 void *new_codec_mutex = NULL;
3249 void *new_avformat_mutex = NULL;
3251 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3252 return err > 0 ? AVERROR_UNKNOWN : err;
3254 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3255 // Ignore failures to destroy the newly created mutex.
3256 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3257 return err > 0 ? AVERROR_UNKNOWN : err;
3260 codec_mutex = new_codec_mutex;
3261 avformat_mutex = new_avformat_mutex;
3267 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3269 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3273 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3277 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) {
3278 av_log(log_ctx, AV_LOG_ERROR,
3279 "Insufficient thread locking. At least %d threads are "
3280 "calling avcodec_open2() at the same time right now.\n",
3281 entangled_thread_counter);
3283 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3284 ff_avcodec_locked = 1;
3285 ff_unlock_avcodec(codec);
3286 return AVERROR(EINVAL);
3288 av_assert0(!ff_avcodec_locked);
3289 ff_avcodec_locked = 1;
3293 int ff_unlock_avcodec(const AVCodec *codec)
3295 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3298 av_assert0(ff_avcodec_locked);
3299 ff_avcodec_locked = 0;
3300 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3302 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3309 int avpriv_lock_avformat(void)
3312 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3318 int avpriv_unlock_avformat(void)
3321 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3327 unsigned int avpriv_toupper4(unsigned int x)
3329 return av_toupper(x & 0xFF) +
3330 (av_toupper((x >> 8) & 0xFF) << 8) +
3331 (av_toupper((x >> 16) & 0xFF) << 16) +
3332 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3335 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3339 dst->owner = src->owner;
3341 ret = av_frame_ref(dst->f, src->f);
3345 av_assert0(!dst->progress);
3347 if (src->progress &&
3348 !(dst->progress = av_buffer_ref(src->progress))) {
3349 ff_thread_release_buffer(dst->owner, dst);
3350 return AVERROR(ENOMEM);
3358 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3360 return ff_get_format(avctx, fmt);
3363 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3366 return ff_get_buffer(avctx, f->f, flags);
3369 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3372 av_frame_unref(f->f);
3375 void ff_thread_finish_setup(AVCodecContext *avctx)
3379 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3383 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3387 int ff_thread_can_start_frame(AVCodecContext *avctx)
3392 int ff_alloc_entries(AVCodecContext *avctx, int count)
3397 void ff_reset_entries(AVCodecContext *avctx)
3401 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3405 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3411 int avcodec_is_open(AVCodecContext *s)
3413 return !!s->internal;
3416 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3421 ret = av_bprint_finalize(buf, &str);
3424 if (!av_bprint_is_complete(buf)) {
3426 return AVERROR(ENOMEM);
3429 avctx->extradata = str;
3430 /* Note: the string is NUL terminated (so extradata can be read as a
3431 * string), but the ending character is not accounted in the size (in
3432 * binary formats you are likely not supposed to mux that character). When
3433 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
3435 avctx->extradata_size = buf->len;
3439 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3441 uint32_t *av_restrict state)
3445 av_assert0(p <= end);
3449 for (i = 0; i < 3; i++) {
3450 uint32_t tmp = *state << 8;
3451 *state = tmp + *(p++);
3452 if (tmp == 0x100 || p == end)
3457 if (p[-1] > 1 ) p += 3;
3458 else if (p[-2] ) p += 2;
3459 else if (p[-3]|(p[-1]-1)) p++;
3466 p = FFMIN(p, end) - 4;
3467 *state = AV_RB32(p);