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/hwcontext.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/mem_internal.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/imgutils.h"
43 #include "libavutil/samplefmt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/thread.h"
47 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
51 #include "frame_thread_encoder.h"
54 #include "bytestream.h"
64 #include "libavutil/ffversion.h"
65 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
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 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
123 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
128 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
129 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
132 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
135 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
140 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
141 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
144 /* encoder management */
145 static AVCodec *first_avcodec = NULL;
146 static AVCodec **last_avcodec = &first_avcodec;
148 AVCodec *av_codec_next(const AVCodec *c)
153 return first_avcodec;
156 static av_cold void avcodec_init(void)
158 static int initialized = 0;
160 if (initialized != 0)
165 ff_me_cmp_init_static();
168 int av_codec_is_encoder(const AVCodec *codec)
170 return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
173 int av_codec_is_decoder(const AVCodec *codec)
175 return codec && (codec->decode || codec->send_packet);
178 av_cold void avcodec_register(AVCodec *codec)
185 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
187 last_avcodec = &codec->next;
189 if (codec->init_static_data)
190 codec->init_static_data(codec);
194 unsigned avcodec_get_edge_width(void)
200 #if FF_API_SET_DIMENSIONS
201 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
203 int ret = ff_set_dimensions(s, width, height);
205 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
210 int ff_set_dimensions(AVCodecContext *s, int width, int height)
212 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
217 s->coded_width = width;
218 s->coded_height = height;
219 s->width = AV_CEIL_RSHIFT(width, s->lowres);
220 s->height = AV_CEIL_RSHIFT(height, s->lowres);
225 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
227 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
230 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
232 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
235 avctx->sample_aspect_ratio = sar;
240 int ff_side_data_update_matrix_encoding(AVFrame *frame,
241 enum AVMatrixEncoding matrix_encoding)
243 AVFrameSideData *side_data;
244 enum AVMatrixEncoding *data;
246 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
248 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
249 sizeof(enum AVMatrixEncoding));
252 return AVERROR(ENOMEM);
254 data = (enum AVMatrixEncoding*)side_data->data;
255 *data = matrix_encoding;
260 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
261 int linesize_align[AV_NUM_DATA_POINTERS])
266 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
269 w_align = 1 << desc->log2_chroma_w;
270 h_align = 1 << desc->log2_chroma_h;
273 switch (s->pix_fmt) {
274 case AV_PIX_FMT_YUV420P:
275 case AV_PIX_FMT_YUYV422:
276 case AV_PIX_FMT_YVYU422:
277 case AV_PIX_FMT_UYVY422:
278 case AV_PIX_FMT_YUV422P:
279 case AV_PIX_FMT_YUV440P:
280 case AV_PIX_FMT_YUV444P:
281 case AV_PIX_FMT_GBRP:
282 case AV_PIX_FMT_GBRAP:
283 case AV_PIX_FMT_GRAY8:
284 case AV_PIX_FMT_GRAY16BE:
285 case AV_PIX_FMT_GRAY16LE:
286 case AV_PIX_FMT_YUVJ420P:
287 case AV_PIX_FMT_YUVJ422P:
288 case AV_PIX_FMT_YUVJ440P:
289 case AV_PIX_FMT_YUVJ444P:
290 case AV_PIX_FMT_YUVA420P:
291 case AV_PIX_FMT_YUVA422P:
292 case AV_PIX_FMT_YUVA444P:
293 case AV_PIX_FMT_YUV420P9LE:
294 case AV_PIX_FMT_YUV420P9BE:
295 case AV_PIX_FMT_YUV420P10LE:
296 case AV_PIX_FMT_YUV420P10BE:
297 case AV_PIX_FMT_YUV420P12LE:
298 case AV_PIX_FMT_YUV420P12BE:
299 case AV_PIX_FMT_YUV420P14LE:
300 case AV_PIX_FMT_YUV420P14BE:
301 case AV_PIX_FMT_YUV420P16LE:
302 case AV_PIX_FMT_YUV420P16BE:
303 case AV_PIX_FMT_YUVA420P9LE:
304 case AV_PIX_FMT_YUVA420P9BE:
305 case AV_PIX_FMT_YUVA420P10LE:
306 case AV_PIX_FMT_YUVA420P10BE:
307 case AV_PIX_FMT_YUVA420P16LE:
308 case AV_PIX_FMT_YUVA420P16BE:
309 case AV_PIX_FMT_YUV422P9LE:
310 case AV_PIX_FMT_YUV422P9BE:
311 case AV_PIX_FMT_YUV422P10LE:
312 case AV_PIX_FMT_YUV422P10BE:
313 case AV_PIX_FMT_YUV422P12LE:
314 case AV_PIX_FMT_YUV422P12BE:
315 case AV_PIX_FMT_YUV422P14LE:
316 case AV_PIX_FMT_YUV422P14BE:
317 case AV_PIX_FMT_YUV422P16LE:
318 case AV_PIX_FMT_YUV422P16BE:
319 case AV_PIX_FMT_YUVA422P9LE:
320 case AV_PIX_FMT_YUVA422P9BE:
321 case AV_PIX_FMT_YUVA422P10LE:
322 case AV_PIX_FMT_YUVA422P10BE:
323 case AV_PIX_FMT_YUVA422P16LE:
324 case AV_PIX_FMT_YUVA422P16BE:
325 case AV_PIX_FMT_YUV440P10LE:
326 case AV_PIX_FMT_YUV440P10BE:
327 case AV_PIX_FMT_YUV440P12LE:
328 case AV_PIX_FMT_YUV440P12BE:
329 case AV_PIX_FMT_YUV444P9LE:
330 case AV_PIX_FMT_YUV444P9BE:
331 case AV_PIX_FMT_YUV444P10LE:
332 case AV_PIX_FMT_YUV444P10BE:
333 case AV_PIX_FMT_YUV444P12LE:
334 case AV_PIX_FMT_YUV444P12BE:
335 case AV_PIX_FMT_YUV444P14LE:
336 case AV_PIX_FMT_YUV444P14BE:
337 case AV_PIX_FMT_YUV444P16LE:
338 case AV_PIX_FMT_YUV444P16BE:
339 case AV_PIX_FMT_YUVA444P9LE:
340 case AV_PIX_FMT_YUVA444P9BE:
341 case AV_PIX_FMT_YUVA444P10LE:
342 case AV_PIX_FMT_YUVA444P10BE:
343 case AV_PIX_FMT_YUVA444P16LE:
344 case AV_PIX_FMT_YUVA444P16BE:
345 case AV_PIX_FMT_GBRP9LE:
346 case AV_PIX_FMT_GBRP9BE:
347 case AV_PIX_FMT_GBRP10LE:
348 case AV_PIX_FMT_GBRP10BE:
349 case AV_PIX_FMT_GBRP12LE:
350 case AV_PIX_FMT_GBRP12BE:
351 case AV_PIX_FMT_GBRP14LE:
352 case AV_PIX_FMT_GBRP14BE:
353 case AV_PIX_FMT_GBRP16LE:
354 case AV_PIX_FMT_GBRP16BE:
355 case AV_PIX_FMT_GBRAP12LE:
356 case AV_PIX_FMT_GBRAP12BE:
357 case AV_PIX_FMT_GBRAP16LE:
358 case AV_PIX_FMT_GBRAP16BE:
359 w_align = 16; //FIXME assume 16 pixel per macroblock
360 h_align = 16 * 2; // interlaced needs 2 macroblocks height
362 case AV_PIX_FMT_YUV411P:
363 case AV_PIX_FMT_YUVJ411P:
364 case AV_PIX_FMT_UYYVYY411:
368 case AV_PIX_FMT_YUV410P:
369 if (s->codec_id == AV_CODEC_ID_SVQ1) {
374 case AV_PIX_FMT_RGB555:
375 if (s->codec_id == AV_CODEC_ID_RPZA) {
379 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
384 case AV_PIX_FMT_PAL8:
385 case AV_PIX_FMT_BGR8:
386 case AV_PIX_FMT_RGB8:
387 if (s->codec_id == AV_CODEC_ID_SMC ||
388 s->codec_id == AV_CODEC_ID_CINEPAK) {
392 if (s->codec_id == AV_CODEC_ID_JV ||
393 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
398 case AV_PIX_FMT_BGR24:
399 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
400 (s->codec_id == AV_CODEC_ID_ZLIB)) {
405 case AV_PIX_FMT_RGB24:
406 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
415 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
416 w_align = FFMAX(w_align, 8);
419 *width = FFALIGN(*width, w_align);
420 *height = FFALIGN(*height, h_align);
421 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
422 // some of the optimized chroma MC reads one line too much
423 // which is also done in mpeg decoders with lowres > 0
426 // H.264 uses edge emulation for out of frame motion vectors, for this
427 // it requires a temporary area large enough to hold a 21x21 block,
428 // increasing witdth ensure that the temporary area is large enough,
429 // the next rounded up width is 32
430 *width = FFMAX(*width, 32);
433 for (i = 0; i < 4; i++)
434 linesize_align[i] = STRIDE_ALIGN;
437 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
439 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
440 int chroma_shift = desc->log2_chroma_w;
441 int linesize_align[AV_NUM_DATA_POINTERS];
444 avcodec_align_dimensions2(s, width, height, linesize_align);
445 align = FFMAX(linesize_align[0], linesize_align[3]);
446 linesize_align[1] <<= chroma_shift;
447 linesize_align[2] <<= chroma_shift;
448 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
449 *width = FFALIGN(*width, align);
452 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
454 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
455 return AVERROR(EINVAL);
458 *xpos = (pos&1) * 128;
459 *ypos = ((pos>>1)^(pos<4)) * 128;
464 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
468 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
469 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
472 return AVCHROMA_LOC_UNSPECIFIED;
475 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
476 enum AVSampleFormat sample_fmt, const uint8_t *buf,
477 int buf_size, int align)
479 int ch, planar, needed_size, ret = 0;
481 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
482 frame->nb_samples, sample_fmt,
484 if (buf_size < needed_size)
485 return AVERROR(EINVAL);
487 planar = av_sample_fmt_is_planar(sample_fmt);
488 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
489 if (!(frame->extended_data = av_mallocz_array(nb_channels,
490 sizeof(*frame->extended_data))))
491 return AVERROR(ENOMEM);
493 frame->extended_data = frame->data;
496 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
497 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
498 sample_fmt, align)) < 0) {
499 if (frame->extended_data != frame->data)
500 av_freep(&frame->extended_data);
503 if (frame->extended_data != frame->data) {
504 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
505 frame->data[ch] = frame->extended_data[ch];
511 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
513 FramePool *pool = avctx->internal->pool;
516 switch (avctx->codec_type) {
517 case AVMEDIA_TYPE_VIDEO: {
521 int w = frame->width;
522 int h = frame->height;
523 int tmpsize, unaligned;
525 if (pool->format == frame->format &&
526 pool->width == frame->width && pool->height == frame->height)
529 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
532 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
533 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
534 ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
537 // increase alignment of w for next try (rhs gives the lowest bit set in w)
541 for (i = 0; i < 4; i++)
542 unaligned |= linesize[i] % pool->stride_align[i];
545 tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
550 for (i = 0; i < 3 && data[i + 1]; i++)
551 size[i] = data[i + 1] - data[i];
552 size[i] = tmpsize - (data[i] - data[0]);
554 for (i = 0; i < 4; i++) {
555 av_buffer_pool_uninit(&pool->pools[i]);
556 pool->linesize[i] = linesize[i];
558 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
559 CONFIG_MEMORY_POISONING ?
562 if (!pool->pools[i]) {
563 ret = AVERROR(ENOMEM);
568 pool->format = frame->format;
569 pool->width = frame->width;
570 pool->height = frame->height;
574 case AVMEDIA_TYPE_AUDIO: {
575 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
576 int planar = av_sample_fmt_is_planar(frame->format);
577 int planes = planar ? ch : 1;
579 if (pool->format == frame->format && pool->planes == planes &&
580 pool->channels == ch && frame->nb_samples == pool->samples)
583 av_buffer_pool_uninit(&pool->pools[0]);
584 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
585 frame->nb_samples, frame->format, 0);
589 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
590 if (!pool->pools[0]) {
591 ret = AVERROR(ENOMEM);
595 pool->format = frame->format;
596 pool->planes = planes;
598 pool->samples = frame->nb_samples;
601 default: av_assert0(0);
605 for (i = 0; i < 4; i++)
606 av_buffer_pool_uninit(&pool->pools[i]);
608 pool->planes = pool->channels = pool->samples = 0;
609 pool->width = pool->height = 0;
613 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
615 FramePool *pool = avctx->internal->pool;
616 int planes = pool->planes;
619 frame->linesize[0] = pool->linesize[0];
621 if (planes > AV_NUM_DATA_POINTERS) {
622 frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
623 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
624 frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
625 sizeof(*frame->extended_buf));
626 if (!frame->extended_data || !frame->extended_buf) {
627 av_freep(&frame->extended_data);
628 av_freep(&frame->extended_buf);
629 return AVERROR(ENOMEM);
632 frame->extended_data = frame->data;
633 av_assert0(frame->nb_extended_buf == 0);
636 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
637 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
640 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
642 for (i = 0; i < frame->nb_extended_buf; i++) {
643 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
644 if (!frame->extended_buf[i])
646 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
649 if (avctx->debug & FF_DEBUG_BUFFERS)
650 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
654 av_frame_unref(frame);
655 return AVERROR(ENOMEM);
658 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
660 FramePool *pool = s->internal->pool;
661 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
664 if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
665 av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
670 av_log(s, AV_LOG_ERROR,
671 "Unable to get pixel format descriptor for format %s\n",
672 av_get_pix_fmt_name(pic->format));
673 return AVERROR(EINVAL);
676 memset(pic->data, 0, sizeof(pic->data));
677 pic->extended_data = pic->data;
679 for (i = 0; i < 4 && pool->pools[i]; i++) {
680 pic->linesize[i] = pool->linesize[i];
682 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
686 pic->data[i] = pic->buf[i]->data;
688 for (; i < AV_NUM_DATA_POINTERS; i++) {
690 pic->linesize[i] = 0;
692 if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
693 desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)
694 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
696 if (s->debug & FF_DEBUG_BUFFERS)
697 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
702 return AVERROR(ENOMEM);
705 void ff_color_frame(AVFrame *frame, const int c[4])
707 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
710 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
712 for (p = 0; p<desc->nb_components; p++) {
713 uint8_t *dst = frame->data[p];
714 int is_chroma = p == 1 || p == 2;
715 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
716 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
717 for (y = 0; y < height; y++) {
718 if (desc->comp[0].depth >= 9) {
719 for (x = 0; x<bytes; x++)
720 ((uint16_t*)dst)[x] = c[p];
722 memset(dst, c[p], bytes);
723 dst += frame->linesize[p];
728 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
732 if (avctx->hw_frames_ctx)
733 return av_hwframe_get_buffer(avctx->hw_frames_ctx, frame, 0);
735 if ((ret = update_frame_pool(avctx, frame)) < 0)
738 switch (avctx->codec_type) {
739 case AVMEDIA_TYPE_VIDEO:
740 return video_get_buffer(avctx, frame);
741 case AVMEDIA_TYPE_AUDIO:
742 return audio_get_buffer(avctx, frame);
748 static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame)
751 const uint8_t *side_metadata;
753 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
755 side_metadata = av_packet_get_side_data(avpkt,
756 AV_PKT_DATA_STRINGS_METADATA, &size);
757 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
760 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
762 AVPacket *pkt = avctx->internal->pkt;
764 static const struct {
765 enum AVPacketSideDataType packet;
766 enum AVFrameSideDataType frame;
768 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
769 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
770 { AV_PKT_DATA_SPHERICAL, AV_FRAME_DATA_SPHERICAL },
771 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
772 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
773 { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA },
777 frame->pts = pkt->pts;
779 FF_DISABLE_DEPRECATION_WARNINGS
780 frame->pkt_pts = pkt->pts;
781 FF_ENABLE_DEPRECATION_WARNINGS
783 av_frame_set_pkt_pos (frame, pkt->pos);
784 av_frame_set_pkt_duration(frame, pkt->duration);
785 av_frame_set_pkt_size (frame, pkt->size);
787 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
789 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
791 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
795 return AVERROR(ENOMEM);
797 memcpy(frame_sd->data, packet_sd, size);
800 add_metadata_from_side_data(pkt, frame);
802 if (pkt->flags & AV_PKT_FLAG_DISCARD) {
803 frame->flags |= AV_FRAME_FLAG_DISCARD;
805 frame->flags = (frame->flags & ~AV_FRAME_FLAG_DISCARD);
808 frame->pts = AV_NOPTS_VALUE;
810 FF_DISABLE_DEPRECATION_WARNINGS
811 frame->pkt_pts = AV_NOPTS_VALUE;
812 FF_ENABLE_DEPRECATION_WARNINGS
814 av_frame_set_pkt_pos (frame, -1);
815 av_frame_set_pkt_duration(frame, 0);
816 av_frame_set_pkt_size (frame, -1);
818 frame->reordered_opaque = avctx->reordered_opaque;
820 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
821 frame->color_primaries = avctx->color_primaries;
822 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
823 frame->color_trc = avctx->color_trc;
824 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
825 av_frame_set_colorspace(frame, avctx->colorspace);
826 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
827 av_frame_set_color_range(frame, avctx->color_range);
828 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
829 frame->chroma_location = avctx->chroma_sample_location;
831 switch (avctx->codec->type) {
832 case AVMEDIA_TYPE_VIDEO:
833 frame->format = avctx->pix_fmt;
834 if (!frame->sample_aspect_ratio.num)
835 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
837 if (frame->width && frame->height &&
838 av_image_check_sar(frame->width, frame->height,
839 frame->sample_aspect_ratio) < 0) {
840 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
841 frame->sample_aspect_ratio.num,
842 frame->sample_aspect_ratio.den);
843 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
847 case AVMEDIA_TYPE_AUDIO:
848 if (!frame->sample_rate)
849 frame->sample_rate = avctx->sample_rate;
850 if (frame->format < 0)
851 frame->format = avctx->sample_fmt;
852 if (!frame->channel_layout) {
853 if (avctx->channel_layout) {
854 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
856 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
858 return AVERROR(EINVAL);
861 frame->channel_layout = avctx->channel_layout;
863 if (avctx->channels > FF_SANE_NB_CHANNELS) {
864 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
866 return AVERROR(ENOSYS);
870 av_frame_set_channels(frame, avctx->channels);
876 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
878 return ff_init_buffer_info(avctx, frame);
881 static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
883 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
885 int num_planes = av_pix_fmt_count_planes(frame->format);
886 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
887 int flags = desc ? desc->flags : 0;
888 if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL))
890 for (i = 0; i < num_planes; i++) {
891 av_assert0(frame->data[i]);
893 // For now do not enforce anything for palette of pseudopal formats
894 if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PSEUDOPAL))
896 // For formats without data like hwaccel allow unused pointers to be non-NULL.
897 for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) {
899 av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n");
900 frame->data[i] = NULL;
905 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
907 const AVHWAccel *hwaccel = avctx->hwaccel;
908 int override_dimensions = 1;
911 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
912 if ((ret = av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx)) < 0 || avctx->pix_fmt<0) {
913 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
914 return AVERROR(EINVAL);
917 if (frame->width <= 0 || frame->height <= 0) {
918 frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
919 frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
920 override_dimensions = 0;
923 if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
924 av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
925 return AVERROR(EINVAL);
928 ret = ff_decode_frame_props(avctx, frame);
933 if (hwaccel->alloc_frame) {
934 ret = hwaccel->alloc_frame(avctx, frame);
938 avctx->sw_pix_fmt = avctx->pix_fmt;
940 ret = avctx->get_buffer2(avctx, frame, flags);
942 validate_avframe_allocation(avctx, frame);
945 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
946 frame->width = avctx->width;
947 frame->height = avctx->height;
953 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
955 int ret = get_buffer_internal(avctx, frame, flags);
957 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
958 frame->width = frame->height = 0;
963 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
968 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
970 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
971 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
972 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
973 av_frame_unref(frame);
976 ff_init_buffer_info(avctx, frame);
979 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
981 if (av_frame_is_writable(frame))
982 return ff_decode_frame_props(avctx, frame);
984 tmp = av_frame_alloc();
986 return AVERROR(ENOMEM);
988 av_frame_move_ref(tmp, frame);
990 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
996 av_frame_copy(frame, tmp);
1002 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
1004 int ret = reget_buffer_internal(avctx, frame);
1006 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1010 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
1014 for (i = 0; i < count; i++) {
1015 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);
1036 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
1037 unsigned int fourcc)
1039 while (tags->pix_fmt >= 0) {
1040 if (tags->fourcc == fourcc)
1041 return tags->pix_fmt;
1044 return AV_PIX_FMT_NONE;
1047 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
1049 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1050 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1053 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
1055 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1060 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
1061 enum AVPixelFormat pix_fmt)
1063 AVHWAccel *hwaccel = NULL;
1065 while ((hwaccel = av_hwaccel_next(hwaccel)))
1066 if (hwaccel->id == codec_id
1067 && hwaccel->pix_fmt == pix_fmt)
1072 static int setup_hwaccel(AVCodecContext *avctx,
1073 const enum AVPixelFormat fmt,
1076 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1079 if (avctx->active_thread_type & FF_THREAD_FRAME) {
1080 av_log(avctx, AV_LOG_WARNING,
1081 "Hardware accelerated decoding with frame threading is known to be unstable and its use is discouraged.\n");
1085 av_log(avctx, AV_LOG_ERROR,
1086 "Could not find an AVHWAccel for the pixel format: %s",
1088 return AVERROR(ENOENT);
1091 if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1092 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1093 av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1095 return AVERROR_PATCHWELCOME;
1098 if (hwa->priv_data_size) {
1099 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
1100 if (!avctx->internal->hwaccel_priv_data)
1101 return AVERROR(ENOMEM);
1105 ret = hwa->init(avctx);
1107 av_freep(&avctx->internal->hwaccel_priv_data);
1112 avctx->hwaccel = hwa;
1117 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1119 const AVPixFmtDescriptor *desc;
1120 enum AVPixelFormat *choices;
1121 enum AVPixelFormat ret;
1124 while (fmt[n] != AV_PIX_FMT_NONE)
1128 avctx->sw_pix_fmt = fmt[n - 1];
1129 av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
1131 choices = av_malloc_array(n + 1, sizeof(*choices));
1133 return AV_PIX_FMT_NONE;
1135 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1138 if (avctx->hwaccel && avctx->hwaccel->uninit)
1139 avctx->hwaccel->uninit(avctx);
1140 av_freep(&avctx->internal->hwaccel_priv_data);
1141 avctx->hwaccel = NULL;
1143 av_buffer_unref(&avctx->hw_frames_ctx);
1145 ret = avctx->get_format(avctx, choices);
1147 desc = av_pix_fmt_desc_get(ret);
1149 ret = AV_PIX_FMT_NONE;
1153 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1155 #if FF_API_CAP_VDPAU
1156 if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
1160 if (avctx->hw_frames_ctx) {
1161 AVHWFramesContext *hw_frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1162 if (hw_frames_ctx->format != ret) {
1163 av_log(avctx, AV_LOG_ERROR, "Format returned from get_buffer() "
1164 "does not match the format of provided AVHWFramesContext\n");
1165 ret = AV_PIX_FMT_NONE;
1170 if (!setup_hwaccel(avctx, ret, desc->name))
1173 /* Remove failed hwaccel from choices */
1174 for (n = 0; choices[n] != ret; n++)
1175 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1178 choices[n] = choices[n + 1];
1179 while (choices[n++] != AV_PIX_FMT_NONE);
1186 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1187 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1188 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1189 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1190 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1192 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
1194 return codec->properties;
1197 int av_codec_get_max_lowres(const AVCodec *codec)
1199 return codec->max_lowres;
1202 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
1203 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
1206 static void get_subtitle_defaults(AVSubtitle *sub)
1208 memset(sub, 0, sizeof(*sub));
1209 sub->pts = AV_NOPTS_VALUE;
1212 static int64_t get_bit_rate(AVCodecContext *ctx)
1215 int bits_per_sample;
1217 switch (ctx->codec_type) {
1218 case AVMEDIA_TYPE_VIDEO:
1219 case AVMEDIA_TYPE_DATA:
1220 case AVMEDIA_TYPE_SUBTITLE:
1221 case AVMEDIA_TYPE_ATTACHMENT:
1222 bit_rate = ctx->bit_rate;
1224 case AVMEDIA_TYPE_AUDIO:
1225 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1226 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
1235 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1239 ff_unlock_avcodec(codec);
1241 ret = avcodec_open2(avctx, codec, options);
1243 ff_lock_avcodec(avctx, codec);
1247 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1250 AVDictionary *tmp = NULL;
1251 const AVPixFmtDescriptor *pixdesc;
1253 if (avcodec_is_open(avctx))
1256 if ((!codec && !avctx->codec)) {
1257 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1258 return AVERROR(EINVAL);
1260 if ((codec && avctx->codec && codec != avctx->codec)) {
1261 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1262 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1263 return AVERROR(EINVAL);
1266 codec = avctx->codec;
1268 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1269 return AVERROR(EINVAL);
1272 av_dict_copy(&tmp, *options, 0);
1274 ret = ff_lock_avcodec(avctx, codec);
1278 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1279 if (!avctx->internal) {
1280 ret = AVERROR(ENOMEM);
1284 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1285 if (!avctx->internal->pool) {
1286 ret = AVERROR(ENOMEM);
1290 avctx->internal->to_free = av_frame_alloc();
1291 if (!avctx->internal->to_free) {
1292 ret = AVERROR(ENOMEM);
1296 avctx->internal->buffer_frame = av_frame_alloc();
1297 if (!avctx->internal->buffer_frame) {
1298 ret = AVERROR(ENOMEM);
1302 avctx->internal->buffer_pkt = av_packet_alloc();
1303 if (!avctx->internal->buffer_pkt) {
1304 ret = AVERROR(ENOMEM);
1308 avctx->internal->skip_samples_multiplier = 1;
1310 if (codec->priv_data_size > 0) {
1311 if (!avctx->priv_data) {
1312 avctx->priv_data = av_mallocz(codec->priv_data_size);
1313 if (!avctx->priv_data) {
1314 ret = AVERROR(ENOMEM);
1317 if (codec->priv_class) {
1318 *(const AVClass **)avctx->priv_data = codec->priv_class;
1319 av_opt_set_defaults(avctx->priv_data);
1322 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1325 avctx->priv_data = NULL;
1327 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1330 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1331 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
1332 ret = AVERROR(EINVAL);
1336 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
1337 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1338 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
1339 if (avctx->coded_width && avctx->coded_height)
1340 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1341 else if (avctx->width && avctx->height)
1342 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1347 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1348 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
1349 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
1350 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1351 ff_set_dimensions(avctx, 0, 0);
1354 if (avctx->width > 0 && avctx->height > 0) {
1355 if (av_image_check_sar(avctx->width, avctx->height,
1356 avctx->sample_aspect_ratio) < 0) {
1357 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1358 avctx->sample_aspect_ratio.num,
1359 avctx->sample_aspect_ratio.den);
1360 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1364 /* if the decoder init function was already called previously,
1365 * free the already allocated subtitle_header before overwriting it */
1366 if (av_codec_is_decoder(codec))
1367 av_freep(&avctx->subtitle_header);
1369 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1370 ret = AVERROR(EINVAL);
1374 avctx->codec = codec;
1375 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1376 avctx->codec_id == AV_CODEC_ID_NONE) {
1377 avctx->codec_type = codec->type;
1378 avctx->codec_id = codec->id;
1380 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1381 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1382 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1383 ret = AVERROR(EINVAL);
1386 avctx->frame_number = 0;
1387 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1389 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
1390 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1391 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1393 av_log(avctx, AV_LOG_ERROR,
1394 "The %s '%s' is experimental but experimental codecs are not enabled, "
1395 "add '-strict %d' if you want to use it.\n",
1396 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1397 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1398 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
1399 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1400 codec_string, codec2->name);
1401 ret = AVERROR_EXPERIMENTAL;
1405 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1406 (!avctx->time_base.num || !avctx->time_base.den)) {
1407 avctx->time_base.num = 1;
1408 avctx->time_base.den = avctx->sample_rate;
1412 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1414 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
1415 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
1416 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1417 ff_lock_avcodec(avctx, codec);
1423 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1424 ret = ff_thread_init(avctx);
1429 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
1430 avctx->thread_count = 1;
1432 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1433 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
1434 avctx->codec->max_lowres);
1435 avctx->lowres = avctx->codec->max_lowres;
1439 if (avctx->debug_mv)
1440 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1441 "see the codecview filter instead.\n");
1444 if (av_codec_is_encoder(avctx->codec)) {
1446 #if FF_API_CODED_FRAME
1447 FF_DISABLE_DEPRECATION_WARNINGS
1448 avctx->coded_frame = av_frame_alloc();
1449 if (!avctx->coded_frame) {
1450 ret = AVERROR(ENOMEM);
1453 FF_ENABLE_DEPRECATION_WARNINGS
1456 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
1457 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
1458 ret = AVERROR(EINVAL);
1462 if (avctx->codec->sample_fmts) {
1463 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1464 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1466 if (avctx->channels == 1 &&
1467 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1468 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1469 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1473 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1475 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1476 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1477 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1478 ret = AVERROR(EINVAL);
1482 if (avctx->codec->pix_fmts) {
1483 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1484 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1486 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1487 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1488 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1490 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1491 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1492 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1493 ret = AVERROR(EINVAL);
1496 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1497 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1498 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1499 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1500 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1501 avctx->color_range = AVCOL_RANGE_JPEG;
1503 if (avctx->codec->supported_samplerates) {
1504 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1505 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1507 if (avctx->codec->supported_samplerates[i] == 0) {
1508 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1509 avctx->sample_rate);
1510 ret = AVERROR(EINVAL);
1514 if (avctx->sample_rate < 0) {
1515 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1516 avctx->sample_rate);
1517 ret = AVERROR(EINVAL);
1520 if (avctx->codec->channel_layouts) {
1521 if (!avctx->channel_layout) {
1522 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1524 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1525 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1527 if (avctx->codec->channel_layouts[i] == 0) {
1529 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1530 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1531 ret = AVERROR(EINVAL);
1536 if (avctx->channel_layout && avctx->channels) {
1537 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1538 if (channels != avctx->channels) {
1540 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1541 av_log(avctx, AV_LOG_ERROR,
1542 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1543 buf, channels, avctx->channels);
1544 ret = AVERROR(EINVAL);
1547 } else if (avctx->channel_layout) {
1548 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1550 if (avctx->channels < 0) {
1551 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
1553 ret = AVERROR(EINVAL);
1556 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1557 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
1558 if ( avctx->bits_per_raw_sample < 0
1559 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
1560 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
1561 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
1562 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
1564 if (avctx->width <= 0 || avctx->height <= 0) {
1565 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1566 ret = AVERROR(EINVAL);
1570 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1571 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1572 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);
1575 if (!avctx->rc_initial_buffer_occupancy)
1576 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1578 if (avctx->ticks_per_frame && avctx->time_base.num &&
1579 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
1580 av_log(avctx, AV_LOG_ERROR,
1581 "ticks_per_frame %d too large for the timebase %d/%d.",
1582 avctx->ticks_per_frame,
1583 avctx->time_base.num,
1584 avctx->time_base.den);
1588 if (avctx->hw_frames_ctx) {
1589 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1590 if (frames_ctx->format != avctx->pix_fmt) {
1591 av_log(avctx, AV_LOG_ERROR,
1592 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
1593 ret = AVERROR(EINVAL);
1599 avctx->pts_correction_num_faulty_pts =
1600 avctx->pts_correction_num_faulty_dts = 0;
1601 avctx->pts_correction_last_pts =
1602 avctx->pts_correction_last_dts = INT64_MIN;
1604 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1605 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1606 av_log(avctx, AV_LOG_WARNING,
1607 "gray decoding requested but not enabled at configuration time\n");
1609 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1610 || avctx->internal->frame_thread_encoder)) {
1611 ret = avctx->codec->init(avctx);
1619 #if FF_API_AUDIOENC_DELAY
1620 if (av_codec_is_encoder(avctx->codec))
1621 avctx->delay = avctx->initial_padding;
1624 if (av_codec_is_decoder(avctx->codec)) {
1625 if (!avctx->bit_rate)
1626 avctx->bit_rate = get_bit_rate(avctx);
1627 /* validate channel layout from the decoder */
1628 if (avctx->channel_layout) {
1629 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1630 if (!avctx->channels)
1631 avctx->channels = channels;
1632 else if (channels != avctx->channels) {
1634 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1635 av_log(avctx, AV_LOG_WARNING,
1636 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1637 "ignoring specified channel layout\n",
1638 buf, channels, avctx->channels);
1639 avctx->channel_layout = 0;
1642 if (avctx->channels && avctx->channels < 0 ||
1643 avctx->channels > FF_SANE_NB_CHANNELS) {
1644 ret = AVERROR(EINVAL);
1647 if (avctx->sub_charenc) {
1648 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1649 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1650 "supported with subtitles codecs\n");
1651 ret = AVERROR(EINVAL);
1653 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1654 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1655 "subtitles character encoding will be ignored\n",
1656 avctx->codec_descriptor->name);
1657 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1659 /* input character encoding is set for a text based subtitle
1660 * codec at this point */
1661 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1662 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1664 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1666 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1667 if (cd == (iconv_t)-1) {
1668 ret = AVERROR(errno);
1669 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1670 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1675 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1676 "conversion needs a libavcodec built with iconv support "
1677 "for this codec\n");
1678 ret = AVERROR(ENOSYS);
1685 #if FF_API_AVCTX_TIMEBASE
1686 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1687 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1690 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1691 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1695 ff_unlock_avcodec(codec);
1697 av_dict_free(options);
1704 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1705 avctx->codec->close(avctx);
1707 if (codec->priv_class && codec->priv_data_size)
1708 av_opt_free(avctx->priv_data);
1711 #if FF_API_CODED_FRAME
1712 FF_DISABLE_DEPRECATION_WARNINGS
1713 av_frame_free(&avctx->coded_frame);
1714 FF_ENABLE_DEPRECATION_WARNINGS
1718 av_freep(&avctx->priv_data);
1719 if (avctx->internal) {
1720 av_packet_free(&avctx->internal->buffer_pkt);
1721 av_frame_free(&avctx->internal->buffer_frame);
1722 av_frame_free(&avctx->internal->to_free);
1723 av_freep(&avctx->internal->pool);
1725 av_freep(&avctx->internal);
1726 avctx->codec = NULL;
1730 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1732 if (avpkt->size < 0) {
1733 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1734 return AVERROR(EINVAL);
1736 if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
1737 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1738 size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1739 return AVERROR(EINVAL);
1742 if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1743 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1744 if (!avpkt->data || avpkt->size < size) {
1745 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1746 avpkt->data = avctx->internal->byte_buffer;
1747 avpkt->size = avctx->internal->byte_buffer_size;
1752 AVBufferRef *buf = avpkt->buf;
1754 if (avpkt->size < size) {
1755 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1756 return AVERROR(EINVAL);
1759 av_init_packet(avpkt);
1764 int ret = av_new_packet(avpkt, size);
1766 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1771 int ff_alloc_packet(AVPacket *avpkt, int size)
1773 return ff_alloc_packet2(NULL, avpkt, size, 0);
1777 * Pad last frame with silence.
1779 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1781 AVFrame *frame = NULL;
1784 if (!(frame = av_frame_alloc()))
1785 return AVERROR(ENOMEM);
1787 frame->format = src->format;
1788 frame->channel_layout = src->channel_layout;
1789 av_frame_set_channels(frame, av_frame_get_channels(src));
1790 frame->nb_samples = s->frame_size;
1791 ret = av_frame_get_buffer(frame, 32);
1795 ret = av_frame_copy_props(frame, src);
1799 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1800 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1802 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1803 frame->nb_samples - src->nb_samples,
1804 s->channels, s->sample_fmt)) < 0)
1812 av_frame_free(&frame);
1816 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1818 const AVFrame *frame,
1819 int *got_packet_ptr)
1821 AVFrame *extended_frame = NULL;
1822 AVFrame *padded_frame = NULL;
1824 AVPacket user_pkt = *avpkt;
1825 int needs_realloc = !user_pkt.data;
1827 *got_packet_ptr = 0;
1829 if (!avctx->codec->encode2) {
1830 av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1831 return AVERROR(ENOSYS);
1834 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1835 av_packet_unref(avpkt);
1836 av_init_packet(avpkt);
1840 /* ensure that extended_data is properly set */
1841 if (frame && !frame->extended_data) {
1842 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1843 avctx->channels > AV_NUM_DATA_POINTERS) {
1844 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1845 "with more than %d channels, but extended_data is not set.\n",
1846 AV_NUM_DATA_POINTERS);
1847 return AVERROR(EINVAL);
1849 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1851 extended_frame = av_frame_alloc();
1852 if (!extended_frame)
1853 return AVERROR(ENOMEM);
1855 memcpy(extended_frame, frame, sizeof(AVFrame));
1856 extended_frame->extended_data = extended_frame->data;
1857 frame = extended_frame;
1860 /* extract audio service type metadata */
1862 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1863 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1864 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1867 /* check for valid frame size */
1869 if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
1870 if (frame->nb_samples > avctx->frame_size) {
1871 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1872 ret = AVERROR(EINVAL);
1875 } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1876 if (frame->nb_samples < avctx->frame_size &&
1877 !avctx->internal->last_audio_frame) {
1878 ret = pad_last_frame(avctx, &padded_frame, frame);
1882 frame = padded_frame;
1883 avctx->internal->last_audio_frame = 1;
1886 if (frame->nb_samples != avctx->frame_size) {
1887 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1888 ret = AVERROR(EINVAL);
1894 av_assert0(avctx->codec->encode2);
1896 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1898 if (*got_packet_ptr) {
1899 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1900 if (avpkt->pts == AV_NOPTS_VALUE)
1901 avpkt->pts = frame->pts;
1902 if (!avpkt->duration)
1903 avpkt->duration = ff_samples_to_time_base(avctx,
1906 avpkt->dts = avpkt->pts;
1911 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1913 if (user_pkt.data) {
1914 if (user_pkt.size >= avpkt->size) {
1915 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1917 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1918 avpkt->size = user_pkt.size;
1921 avpkt->buf = user_pkt.buf;
1922 avpkt->data = user_pkt.data;
1924 if (av_dup_packet(avpkt) < 0) {
1925 ret = AVERROR(ENOMEM);
1931 if (needs_realloc && avpkt->data) {
1932 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1934 avpkt->data = avpkt->buf->data;
1937 avctx->frame_number++;
1940 if (ret < 0 || !*got_packet_ptr) {
1941 av_packet_unref(avpkt);
1942 av_init_packet(avpkt);
1946 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1947 * this needs to be moved to the encoders, but for now we can do it
1948 * here to simplify things */
1949 avpkt->flags |= AV_PKT_FLAG_KEY;
1952 av_frame_free(&padded_frame);
1953 av_free(extended_frame);
1955 #if FF_API_AUDIOENC_DELAY
1956 avctx->delay = avctx->initial_padding;
1962 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1964 const AVFrame *frame,
1965 int *got_packet_ptr)
1968 AVPacket user_pkt = *avpkt;
1969 int needs_realloc = !user_pkt.data;
1971 *got_packet_ptr = 0;
1973 if (!avctx->codec->encode2) {
1974 av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1975 return AVERROR(ENOSYS);
1978 if(CONFIG_FRAME_THREAD_ENCODER &&
1979 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1980 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1982 if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
1983 avctx->stats_out[0] = '\0';
1985 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1986 av_packet_unref(avpkt);
1987 av_init_packet(avpkt);
1992 if (av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx))
1993 return AVERROR(EINVAL);
1995 if (frame && frame->format == AV_PIX_FMT_NONE)
1996 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
1997 if (frame && (frame->width == 0 || frame->height == 0))
1998 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
2000 av_assert0(avctx->codec->encode2);
2002 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2003 av_assert0(ret <= 0);
2007 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2009 if (user_pkt.data) {
2010 if (user_pkt.size >= avpkt->size) {
2011 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2013 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2014 avpkt->size = user_pkt.size;
2017 avpkt->buf = user_pkt.buf;
2018 avpkt->data = user_pkt.data;
2020 if (av_dup_packet(avpkt) < 0) {
2021 ret = AVERROR(ENOMEM);
2027 if (!*got_packet_ptr)
2029 else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2030 avpkt->pts = avpkt->dts = frame->pts;
2032 if (needs_realloc && avpkt->data) {
2033 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
2035 avpkt->data = avpkt->buf->data;
2038 avctx->frame_number++;
2041 if (ret < 0 || !*got_packet_ptr)
2042 av_packet_unref(avpkt);
2047 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2048 const AVSubtitle *sub)
2051 if (sub->start_display_time) {
2052 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2056 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2057 avctx->frame_number++;
2062 * Attempt to guess proper monotonic timestamps for decoded video frames
2063 * which might have incorrect times. Input timestamps may wrap around, in
2064 * which case the output will as well.
2066 * @param pts the pts field of the decoded AVPacket, as passed through
2068 * @param dts the dts field of the decoded AVPacket
2069 * @return one of the input values, may be AV_NOPTS_VALUE
2071 static int64_t guess_correct_pts(AVCodecContext *ctx,
2072 int64_t reordered_pts, int64_t dts)
2074 int64_t pts = AV_NOPTS_VALUE;
2076 if (dts != AV_NOPTS_VALUE) {
2077 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2078 ctx->pts_correction_last_dts = dts;
2079 } else if (reordered_pts != AV_NOPTS_VALUE)
2080 ctx->pts_correction_last_dts = reordered_pts;
2082 if (reordered_pts != AV_NOPTS_VALUE) {
2083 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2084 ctx->pts_correction_last_pts = reordered_pts;
2085 } else if(dts != AV_NOPTS_VALUE)
2086 ctx->pts_correction_last_pts = dts;
2088 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2089 && reordered_pts != AV_NOPTS_VALUE)
2090 pts = reordered_pts;
2097 static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt)
2100 const uint8_t *data;
2104 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2108 if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
2109 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2110 "changes, but PARAM_CHANGE side data was sent to it.\n");
2111 ret = AVERROR(EINVAL);
2118 flags = bytestream_get_le32(&data);
2121 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2124 val = bytestream_get_le32(&data);
2125 if (val <= 0 || val > INT_MAX) {
2126 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2127 ret = AVERROR_INVALIDDATA;
2130 avctx->channels = val;
2133 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2136 avctx->channel_layout = bytestream_get_le64(&data);
2139 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2142 val = bytestream_get_le32(&data);
2143 if (val <= 0 || val > INT_MAX) {
2144 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2145 ret = AVERROR_INVALIDDATA;
2148 avctx->sample_rate = val;
2151 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2154 avctx->width = bytestream_get_le32(&data);
2155 avctx->height = bytestream_get_le32(&data);
2157 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2164 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2165 ret = AVERROR_INVALIDDATA;
2168 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2169 if (avctx->err_recognition & AV_EF_EXPLODE)
2175 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2179 /* move the original frame to our backup */
2180 av_frame_unref(avci->to_free);
2181 av_frame_move_ref(avci->to_free, frame);
2183 /* now copy everything except the AVBufferRefs back
2184 * note that we make a COPY of the side data, so calling av_frame_free() on
2185 * the caller's frame will work properly */
2186 ret = av_frame_copy_props(frame, avci->to_free);
2190 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2191 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2192 if (avci->to_free->extended_data != avci->to_free->data) {
2193 int planes = av_frame_get_channels(avci->to_free);
2194 int size = planes * sizeof(*frame->extended_data);
2197 av_frame_unref(frame);
2201 frame->extended_data = av_malloc(size);
2202 if (!frame->extended_data) {
2203 av_frame_unref(frame);
2204 return AVERROR(ENOMEM);
2206 memcpy(frame->extended_data, avci->to_free->extended_data,
2209 frame->extended_data = frame->data;
2211 frame->format = avci->to_free->format;
2212 frame->width = avci->to_free->width;
2213 frame->height = avci->to_free->height;
2214 frame->channel_layout = avci->to_free->channel_layout;
2215 frame->nb_samples = avci->to_free->nb_samples;
2216 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2221 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2222 int *got_picture_ptr,
2223 const AVPacket *avpkt)
2225 AVCodecInternal *avci = avctx->internal;
2227 // copy to ensure we do not change avpkt
2228 AVPacket tmp = *avpkt;
2231 return AVERROR(EINVAL);
2232 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2233 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2234 return AVERROR(EINVAL);
2237 if (!avctx->codec->decode) {
2238 av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2239 return AVERROR(ENOSYS);
2242 *got_picture_ptr = 0;
2243 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx))
2244 return AVERROR(EINVAL);
2246 avctx->internal->pkt = avpkt;
2247 ret = apply_param_change(avctx, avpkt);
2251 av_frame_unref(picture);
2253 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2254 (avctx->active_thread_type & FF_THREAD_FRAME)) {
2255 int did_split = av_packet_split_side_data(&tmp);
2256 ret = apply_param_change(avctx, &tmp);
2260 avctx->internal->pkt = &tmp;
2261 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2262 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2265 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2267 if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
2268 picture->pkt_dts = avpkt->dts;
2270 if(!avctx->has_b_frames){
2271 av_frame_set_pkt_pos(picture, avpkt->pos);
2273 //FIXME these should be under if(!avctx->has_b_frames)
2274 /* get_buffer is supposed to set frame parameters */
2275 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2276 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2277 if (!picture->width) picture->width = avctx->width;
2278 if (!picture->height) picture->height = avctx->height;
2279 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2284 emms_c(); //needed to avoid an emms_c() call before every return;
2286 avctx->internal->pkt = NULL;
2288 av_packet_free_side_data(&tmp);
2292 if (picture->flags & AV_FRAME_FLAG_DISCARD) {
2293 *got_picture_ptr = 0;
2295 if (*got_picture_ptr) {
2296 if (!avctx->refcounted_frames) {
2297 int err = unrefcount_frame(avci, picture);
2302 avctx->frame_number++;
2303 av_frame_set_best_effort_timestamp(picture,
2304 guess_correct_pts(avctx,
2308 av_frame_unref(picture);
2312 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2313 * make sure it's set correctly */
2314 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2316 #if FF_API_AVCTX_TIMEBASE
2317 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2318 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2324 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2327 const AVPacket *avpkt)
2329 AVCodecInternal *avci = avctx->internal;
2335 return AVERROR(EINVAL);
2337 if (!avctx->codec->decode) {
2338 av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2339 return AVERROR(ENOSYS);
2342 if (!avpkt->data && avpkt->size) {
2343 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2344 return AVERROR(EINVAL);
2346 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2347 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2348 return AVERROR(EINVAL);
2351 av_frame_unref(frame);
2353 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2356 uint32_t discard_padding = 0;
2357 uint8_t skip_reason = 0;
2358 uint8_t discard_reason = 0;
2359 // copy to ensure we do not change avpkt
2360 AVPacket tmp = *avpkt;
2361 int did_split = av_packet_split_side_data(&tmp);
2362 ret = apply_param_change(avctx, &tmp);
2366 avctx->internal->pkt = &tmp;
2367 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2368 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2370 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2371 av_assert0(ret <= tmp.size);
2372 frame->pkt_dts = avpkt->dts;
2374 if (ret >= 0 && *got_frame_ptr) {
2375 avctx->frame_number++;
2376 av_frame_set_best_effort_timestamp(frame,
2377 guess_correct_pts(avctx,
2380 if (frame->format == AV_SAMPLE_FMT_NONE)
2381 frame->format = avctx->sample_fmt;
2382 if (!frame->channel_layout)
2383 frame->channel_layout = avctx->channel_layout;
2384 if (!av_frame_get_channels(frame))
2385 av_frame_set_channels(frame, avctx->channels);
2386 if (!frame->sample_rate)
2387 frame->sample_rate = avctx->sample_rate;
2390 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2391 if(side && side_size>=10) {
2392 avctx->internal->skip_samples = AV_RL32(side) * avctx->internal->skip_samples_multiplier;
2393 discard_padding = AV_RL32(side + 4);
2394 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2395 avctx->internal->skip_samples, (int)discard_padding);
2396 skip_reason = AV_RL8(side + 8);
2397 discard_reason = AV_RL8(side + 9);
2400 if ((frame->flags & AV_FRAME_FLAG_DISCARD) && *got_frame_ptr &&
2401 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2402 avctx->internal->skip_samples = FFMAX(0, avctx->internal->skip_samples - frame->nb_samples);
2406 if (avctx->internal->skip_samples > 0 && *got_frame_ptr &&
2407 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2408 if(frame->nb_samples <= avctx->internal->skip_samples){
2410 avctx->internal->skip_samples -= frame->nb_samples;
2411 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2412 avctx->internal->skip_samples);
2414 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2415 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2416 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2417 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2418 (AVRational){1, avctx->sample_rate},
2419 avctx->pkt_timebase);
2420 if(frame->pts!=AV_NOPTS_VALUE)
2421 frame->pts += diff_ts;
2423 FF_DISABLE_DEPRECATION_WARNINGS
2424 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2425 frame->pkt_pts += diff_ts;
2426 FF_ENABLE_DEPRECATION_WARNINGS
2428 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2429 frame->pkt_dts += diff_ts;
2430 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2431 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2433 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2435 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2436 avctx->internal->skip_samples, frame->nb_samples);
2437 frame->nb_samples -= avctx->internal->skip_samples;
2438 avctx->internal->skip_samples = 0;
2442 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2443 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2444 if (discard_padding == frame->nb_samples) {
2447 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2448 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2449 (AVRational){1, avctx->sample_rate},
2450 avctx->pkt_timebase);
2451 av_frame_set_pkt_duration(frame, diff_ts);
2453 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2455 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2456 (int)discard_padding, frame->nb_samples);
2457 frame->nb_samples -= discard_padding;
2461 if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2462 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2464 AV_WL32(fside->data, avctx->internal->skip_samples);
2465 AV_WL32(fside->data + 4, discard_padding);
2466 AV_WL8(fside->data + 8, skip_reason);
2467 AV_WL8(fside->data + 9, discard_reason);
2468 avctx->internal->skip_samples = 0;
2472 avctx->internal->pkt = NULL;
2474 av_packet_free_side_data(&tmp);
2479 if (ret >= 0 && *got_frame_ptr) {
2480 if (!avctx->refcounted_frames) {
2481 int err = unrefcount_frame(avci, frame);
2486 av_frame_unref(frame);
2489 av_assert0(ret <= avpkt->size);
2491 if (!avci->showed_multi_packet_warning &&
2492 ret >= 0 && ret != avpkt->size && !(avctx->codec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
2493 av_log(avctx, AV_LOG_WARNING, "Multiple frames in a packet.\n");
2494 avci->showed_multi_packet_warning = 1;
2500 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2501 static int recode_subtitle(AVCodecContext *avctx,
2502 AVPacket *outpkt, const AVPacket *inpkt)
2505 iconv_t cd = (iconv_t)-1;
2512 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2516 cd = iconv_open("UTF-8", avctx->sub_charenc);
2517 av_assert0(cd != (iconv_t)-1);
2522 if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2523 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2524 ret = AVERROR(ENOMEM);
2528 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2531 outpkt->buf = tmp.buf;
2532 outpkt->data = tmp.data;
2533 outpkt->size = tmp.size;
2534 outb = outpkt->data;
2535 outl = outpkt->size;
2537 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2538 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2539 outl >= outpkt->size || inl != 0) {
2540 ret = FFMIN(AVERROR(errno), -1);
2541 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2542 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2543 av_packet_unref(&tmp);
2546 outpkt->size -= outl;
2547 memset(outpkt->data + outpkt->size, 0, outl);
2550 if (cd != (iconv_t)-1)
2554 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2555 return AVERROR(EINVAL);
2559 static int utf8_check(const uint8_t *str)
2561 const uint8_t *byte;
2562 uint32_t codepoint, min;
2566 GET_UTF8(codepoint, *(byte++), return 0;);
2567 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2568 1 << (5 * (byte - str) - 4);
2569 if (codepoint < min || codepoint >= 0x110000 ||
2570 codepoint == 0xFFFE /* BOM */ ||
2571 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2578 #if FF_API_ASS_TIMING
2579 static void insert_ts(AVBPrint *buf, int ts)
2582 av_bprintf(buf, "9:59:59.99,");
2586 h = ts/360000; ts -= 360000*h;
2587 m = ts/ 6000; ts -= 6000*m;
2588 s = ts/ 100; ts -= 100*s;
2589 av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
2593 static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
2598 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
2600 for (i = 0; i < sub->num_rects; i++) {
2603 AVSubtitleRect *rect = sub->rects[i];
2604 int ts_start, ts_duration = -1;
2607 if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
2610 av_bprint_clear(&buf);
2612 /* skip ReadOrder */
2613 dialog = strchr(rect->ass, ',');
2618 /* extract Layer or Marked */
2619 layer = strtol(dialog, (char**)&dialog, 10);
2624 /* rescale timing to ASS time base (ms) */
2625 ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
2626 if (pkt->duration != -1)
2627 ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
2628 sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
2630 /* construct ASS (standalone file form with timestamps) string */
2631 av_bprintf(&buf, "Dialogue: %ld,", layer);
2632 insert_ts(&buf, ts_start);
2633 insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
2634 av_bprintf(&buf, "%s\r\n", dialog);
2636 final_dialog = av_strdup(buf.str);
2637 if (!av_bprint_is_complete(&buf) || !final_dialog) {
2638 av_freep(&final_dialog);
2639 av_bprint_finalize(&buf, NULL);
2640 return AVERROR(ENOMEM);
2642 av_freep(&rect->ass);
2643 rect->ass = final_dialog;
2646 av_bprint_finalize(&buf, NULL);
2651 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2657 if (!avpkt->data && avpkt->size) {
2658 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2659 return AVERROR(EINVAL);
2662 return AVERROR(EINVAL);
2663 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2664 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2665 return AVERROR(EINVAL);
2669 get_subtitle_defaults(sub);
2671 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2672 AVPacket pkt_recoded;
2673 AVPacket tmp = *avpkt;
2674 int did_split = av_packet_split_side_data(&tmp);
2675 //apply_param_change(avctx, &tmp);
2678 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2680 * If the side data is smaller than the buffer padding size, the
2681 * remaining bytes should have already been filled with zeros by the
2682 * original packet allocation anyway. */
2683 memset(tmp.data + tmp.size, 0,
2684 FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2688 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2692 avctx->internal->pkt = &pkt_recoded;
2694 if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
2695 sub->pts = av_rescale_q(avpkt->pts,
2696 avctx->pkt_timebase, AV_TIME_BASE_Q);
2697 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2698 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2699 !!*got_sub_ptr >= !!sub->num_rects);
2701 #if FF_API_ASS_TIMING
2702 if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
2703 && *got_sub_ptr && sub->num_rects) {
2704 const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
2706 int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
2712 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2713 avctx->pkt_timebase.num) {
2714 AVRational ms = { 1, 1000 };
2715 sub->end_display_time = av_rescale_q(avpkt->duration,
2716 avctx->pkt_timebase, ms);
2719 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2721 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2724 for (i = 0; i < sub->num_rects; i++) {
2725 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2726 av_log(avctx, AV_LOG_ERROR,
2727 "Invalid UTF-8 in decoded subtitles text; "
2728 "maybe missing -sub_charenc option\n");
2729 avsubtitle_free(sub);
2730 ret = AVERROR_INVALIDDATA;
2735 if (tmp.data != pkt_recoded.data) { // did we recode?
2736 /* prevent from destroying side data from original packet */
2737 pkt_recoded.side_data = NULL;
2738 pkt_recoded.side_data_elems = 0;
2740 av_packet_unref(&pkt_recoded);
2742 avctx->internal->pkt = NULL;
2746 av_packet_free_side_data(&tmp);
2752 avctx->frame_number++;
2758 void avsubtitle_free(AVSubtitle *sub)
2762 for (i = 0; i < sub->num_rects; i++) {
2763 av_freep(&sub->rects[i]->data[0]);
2764 av_freep(&sub->rects[i]->data[1]);
2765 av_freep(&sub->rects[i]->data[2]);
2766 av_freep(&sub->rects[i]->data[3]);
2767 av_freep(&sub->rects[i]->text);
2768 av_freep(&sub->rects[i]->ass);
2769 av_freep(&sub->rects[i]);
2772 av_freep(&sub->rects);
2774 memset(sub, 0, sizeof(AVSubtitle));
2777 static int do_decode(AVCodecContext *avctx, AVPacket *pkt)
2782 av_assert0(!avctx->internal->buffer_frame->buf[0]);
2785 pkt = avctx->internal->buffer_pkt;
2787 // This is the lesser evil. The field is for compatibility with legacy users
2788 // of the legacy API, and users using the new API should not be forced to
2789 // even know about this field.
2790 avctx->refcounted_frames = 1;
2792 // Some codecs (at least wma lossless) will crash when feeding drain packets
2793 // after EOF was signaled.
2794 if (avctx->internal->draining_done)
2797 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2798 ret = avcodec_decode_video2(avctx, avctx->internal->buffer_frame,
2800 if (ret >= 0 && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))
2802 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2803 ret = avcodec_decode_audio4(avctx, avctx->internal->buffer_frame,
2806 ret = AVERROR(EINVAL);
2809 if (ret == AVERROR(EAGAIN))
2812 if (avctx->internal->draining && !got_frame)
2813 avctx->internal->draining_done = 1;
2818 if (ret >= pkt->size) {
2819 av_packet_unref(avctx->internal->buffer_pkt);
2823 if (pkt != avctx->internal->buffer_pkt) {
2824 av_packet_unref(avctx->internal->buffer_pkt);
2825 if ((ret = av_packet_ref(avctx->internal->buffer_pkt, pkt)) < 0)
2829 avctx->internal->buffer_pkt->data += consumed;
2830 avctx->internal->buffer_pkt->size -= consumed;
2831 avctx->internal->buffer_pkt->pts = AV_NOPTS_VALUE;
2832 avctx->internal->buffer_pkt->dts = AV_NOPTS_VALUE;
2836 av_assert0(avctx->internal->buffer_frame->buf[0]);
2841 int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
2845 if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2846 return AVERROR(EINVAL);
2848 if (avctx->internal->draining)
2851 if (avpkt && !avpkt->size && avpkt->data)
2852 return AVERROR(EINVAL);
2854 if (!avpkt || !avpkt->size) {
2855 avctx->internal->draining = 1;
2858 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2862 if (avctx->codec->send_packet) {
2864 AVPacket tmp = *avpkt;
2865 int did_split = av_packet_split_side_data(&tmp);
2866 ret = apply_param_change(avctx, &tmp);
2868 ret = avctx->codec->send_packet(avctx, &tmp);
2870 av_packet_free_side_data(&tmp);
2873 return avctx->codec->send_packet(avctx, NULL);
2877 // Emulation via old API. Assume avpkt is likely not refcounted, while
2878 // decoder output is always refcounted, and avoid copying.
2880 if (avctx->internal->buffer_pkt->size || avctx->internal->buffer_frame->buf[0])
2881 return AVERROR(EAGAIN);
2883 // The goal is decoding the first frame of the packet without using memcpy,
2884 // because the common case is having only 1 frame per packet (especially
2885 // with video, but audio too). In other cases, it can't be avoided, unless
2886 // the user is feeding refcounted packets.
2887 return do_decode(avctx, (AVPacket *)avpkt);
2890 int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
2894 av_frame_unref(frame);
2896 if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2897 return AVERROR(EINVAL);
2899 if (avctx->codec->receive_frame) {
2900 if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2902 ret = avctx->codec->receive_frame(avctx, frame);
2904 if (av_frame_get_best_effort_timestamp(frame) == AV_NOPTS_VALUE) {
2905 av_frame_set_best_effort_timestamp(frame,
2906 guess_correct_pts(avctx, frame->pts, frame->pkt_dts));
2912 // Emulation via old API.
2914 if (!avctx->internal->buffer_frame->buf[0]) {
2915 if (!avctx->internal->buffer_pkt->size && !avctx->internal->draining)
2916 return AVERROR(EAGAIN);
2919 if ((ret = do_decode(avctx, avctx->internal->buffer_pkt)) < 0) {
2920 av_packet_unref(avctx->internal->buffer_pkt);
2923 // Some audio decoders may consume partial data without returning
2924 // a frame (fate-wmapro-2ch). There is no way to make the caller
2925 // call avcodec_receive_frame() again without returning a frame,
2926 // so try to decode more in these cases.
2927 if (avctx->internal->buffer_frame->buf[0] ||
2928 !avctx->internal->buffer_pkt->size)
2933 if (!avctx->internal->buffer_frame->buf[0])
2934 return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN);
2936 av_frame_move_ref(frame, avctx->internal->buffer_frame);
2940 static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet)
2945 av_packet_unref(avctx->internal->buffer_pkt);
2946 avctx->internal->buffer_pkt_valid = 0;
2948 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2949 ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt,
2951 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2952 ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt,
2955 ret = AVERROR(EINVAL);
2958 if (ret >= 0 && *got_packet) {
2959 // Encoders must always return ref-counted buffers.
2960 // Side-data only packets have no data and can be not ref-counted.
2961 av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf);
2962 avctx->internal->buffer_pkt_valid = 1;
2965 av_packet_unref(avctx->internal->buffer_pkt);
2971 int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
2973 if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
2974 return AVERROR(EINVAL);
2976 if (avctx->internal->draining)
2980 avctx->internal->draining = 1;
2982 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2986 if (avctx->codec->send_frame)
2987 return avctx->codec->send_frame(avctx, frame);
2989 // Emulation via old API. Do it here instead of avcodec_receive_packet, because:
2990 // 1. if the AVFrame is not refcounted, the copying will be much more
2991 // expensive than copying the packet data
2992 // 2. assume few users use non-refcounted AVPackets, so usually no copy is
2995 if (avctx->internal->buffer_pkt_valid)
2996 return AVERROR(EAGAIN);
2998 return do_encode(avctx, frame, &(int){0});
3001 int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
3003 av_packet_unref(avpkt);
3005 if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
3006 return AVERROR(EINVAL);
3008 if (avctx->codec->receive_packet) {
3009 if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
3011 return avctx->codec->receive_packet(avctx, avpkt);
3014 // Emulation via old API.
3016 if (!avctx->internal->buffer_pkt_valid) {
3019 if (!avctx->internal->draining)
3020 return AVERROR(EAGAIN);
3021 ret = do_encode(avctx, NULL, &got_packet);
3024 if (ret >= 0 && !got_packet)
3028 av_packet_move_ref(avpkt, avctx->internal->buffer_pkt);
3029 avctx->internal->buffer_pkt_valid = 0;
3033 av_cold int avcodec_close(AVCodecContext *avctx)
3040 if (avcodec_is_open(avctx)) {
3041 FramePool *pool = avctx->internal->pool;
3042 if (CONFIG_FRAME_THREAD_ENCODER &&
3043 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
3044 ff_frame_thread_encoder_free(avctx);
3046 if (HAVE_THREADS && avctx->internal->thread_ctx)
3047 ff_thread_free(avctx);
3048 if (avctx->codec && avctx->codec->close)
3049 avctx->codec->close(avctx);
3050 avctx->internal->byte_buffer_size = 0;
3051 av_freep(&avctx->internal->byte_buffer);
3052 av_frame_free(&avctx->internal->to_free);
3053 av_frame_free(&avctx->internal->buffer_frame);
3054 av_packet_free(&avctx->internal->buffer_pkt);
3055 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
3056 av_buffer_pool_uninit(&pool->pools[i]);
3057 av_freep(&avctx->internal->pool);
3059 if (avctx->hwaccel && avctx->hwaccel->uninit)
3060 avctx->hwaccel->uninit(avctx);
3061 av_freep(&avctx->internal->hwaccel_priv_data);
3063 av_freep(&avctx->internal);
3066 for (i = 0; i < avctx->nb_coded_side_data; i++)
3067 av_freep(&avctx->coded_side_data[i].data);
3068 av_freep(&avctx->coded_side_data);
3069 avctx->nb_coded_side_data = 0;
3071 av_buffer_unref(&avctx->hw_frames_ctx);
3072 av_buffer_unref(&avctx->hw_device_ctx);
3074 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
3075 av_opt_free(avctx->priv_data);
3077 av_freep(&avctx->priv_data);
3078 if (av_codec_is_encoder(avctx->codec)) {
3079 av_freep(&avctx->extradata);
3080 #if FF_API_CODED_FRAME
3081 FF_DISABLE_DEPRECATION_WARNINGS
3082 av_frame_free(&avctx->coded_frame);
3083 FF_ENABLE_DEPRECATION_WARNINGS
3086 avctx->codec = NULL;
3087 avctx->active_thread_type = 0;
3092 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
3095 //This is for future deprecatec codec ids, its empty since
3096 //last major bump but will fill up again over time, please don't remove it
3097 default : return id;
3101 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
3103 AVCodec *p, *experimental = NULL;
3105 id= remap_deprecated_codec_id(id);
3107 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
3109 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
3116 return experimental;
3119 AVCodec *avcodec_find_encoder(enum AVCodecID id)
3121 return find_encdec(id, 1);
3124 AVCodec *avcodec_find_encoder_by_name(const char *name)
3131 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
3138 AVCodec *avcodec_find_decoder(enum AVCodecID id)
3140 return find_encdec(id, 0);
3143 AVCodec *avcodec_find_decoder_by_name(const char *name)
3150 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
3157 const char *avcodec_get_name(enum AVCodecID id)
3159 const AVCodecDescriptor *cd;
3162 if (id == AV_CODEC_ID_NONE)
3164 cd = avcodec_descriptor_get(id);
3167 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
3168 codec = avcodec_find_decoder(id);
3171 codec = avcodec_find_encoder(id);
3174 return "unknown_codec";
3177 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3179 int i, len, ret = 0;
3181 #define TAG_PRINT(x) \
3182 (((x) >= '0' && (x) <= '9') || \
3183 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3184 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3186 for (i = 0; i < 4; i++) {
3187 len = snprintf(buf, buf_size,
3188 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3190 buf_size = buf_size > len ? buf_size - len : 0;
3197 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3199 const char *codec_type;
3200 const char *codec_name;
3201 const char *profile = NULL;
3204 AVRational display_aspect_ratio;
3205 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3207 if (!buf || buf_size <= 0)
3209 codec_type = av_get_media_type_string(enc->codec_type);
3210 codec_name = avcodec_get_name(enc->codec_id);
3211 profile = avcodec_profile_name(enc->codec_id, enc->profile);
3213 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3215 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3217 if (enc->codec && strcmp(enc->codec->name, codec_name))
3218 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3221 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3222 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3223 && av_log_get_level() >= AV_LOG_VERBOSE
3225 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3226 ", %d reference frame%s",
3227 enc->refs, enc->refs > 1 ? "s" : "");
3229 if (enc->codec_tag) {
3231 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3232 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3233 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3236 switch (enc->codec_type) {
3237 case AVMEDIA_TYPE_VIDEO:
3239 char detail[256] = "(";
3241 av_strlcat(buf, separator, buf_size);
3243 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3244 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3245 av_get_pix_fmt_name(enc->pix_fmt));
3246 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3247 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
3248 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3249 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
3250 av_strlcatf(detail, sizeof(detail), "%s, ",
3251 av_color_range_name(enc->color_range));
3253 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3254 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
3255 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3256 if (enc->colorspace != (int)enc->color_primaries ||
3257 enc->colorspace != (int)enc->color_trc) {
3259 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3260 av_color_space_name(enc->colorspace),
3261 av_color_primaries_name(enc->color_primaries),
3262 av_color_transfer_name(enc->color_trc));
3264 av_strlcatf(detail, sizeof(detail), "%s, ",
3265 av_get_colorspace_name(enc->colorspace));
3268 if (enc->field_order != AV_FIELD_UNKNOWN) {
3269 const char *field_order = "progressive";
3270 if (enc->field_order == AV_FIELD_TT)
3271 field_order = "top first";
3272 else if (enc->field_order == AV_FIELD_BB)
3273 field_order = "bottom first";
3274 else if (enc->field_order == AV_FIELD_TB)
3275 field_order = "top coded first (swapped)";
3276 else if (enc->field_order == AV_FIELD_BT)
3277 field_order = "bottom coded first (swapped)";
3279 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
3282 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3283 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
3284 av_strlcatf(detail, sizeof(detail), "%s, ",
3285 av_chroma_location_name(enc->chroma_sample_location));
3287 if (strlen(detail) > 1) {
3288 detail[strlen(detail) - 2] = 0;
3289 av_strlcatf(buf, buf_size, "%s)", detail);
3294 av_strlcat(buf, new_line ? separator : ", ", buf_size);
3296 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3298 enc->width, enc->height);
3300 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3301 (enc->width != enc->coded_width ||
3302 enc->height != enc->coded_height))
3303 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3304 " (%dx%d)", enc->coded_width, enc->coded_height);
3306 if (enc->sample_aspect_ratio.num) {
3307 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3308 enc->width * (int64_t)enc->sample_aspect_ratio.num,
3309 enc->height * (int64_t)enc->sample_aspect_ratio.den,
3311 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3312 " [SAR %d:%d DAR %d:%d]",
3313 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
3314 display_aspect_ratio.num, display_aspect_ratio.den);
3316 if (av_log_get_level() >= AV_LOG_DEBUG) {
3317 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3318 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3320 enc->time_base.num / g, enc->time_base.den / g);
3324 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3325 ", q=%d-%d", enc->qmin, enc->qmax);
3327 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
3328 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3329 ", Closed Captions");
3330 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
3331 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3335 case AVMEDIA_TYPE_AUDIO:
3336 av_strlcat(buf, separator, buf_size);
3338 if (enc->sample_rate) {
3339 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3340 "%d Hz, ", enc->sample_rate);
3342 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3343 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3344 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3345 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3347 if ( enc->bits_per_raw_sample > 0
3348 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
3349 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3350 " (%d bit)", enc->bits_per_raw_sample);
3351 if (av_log_get_level() >= AV_LOG_VERBOSE) {
3352 if (enc->initial_padding)
3353 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3354 ", delay %d", enc->initial_padding);
3355 if (enc->trailing_padding)
3356 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3357 ", padding %d", enc->trailing_padding);
3360 case AVMEDIA_TYPE_DATA:
3361 if (av_log_get_level() >= AV_LOG_DEBUG) {
3362 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3364 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3366 enc->time_base.num / g, enc->time_base.den / g);
3369 case AVMEDIA_TYPE_SUBTITLE:
3371 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3372 ", %dx%d", enc->width, enc->height);
3378 if (enc->flags & AV_CODEC_FLAG_PASS1)
3379 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3381 if (enc->flags & AV_CODEC_FLAG_PASS2)
3382 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3385 bitrate = get_bit_rate(enc);
3387 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3388 ", %"PRId64" kb/s", bitrate / 1000);
3389 } else if (enc->rc_max_rate > 0) {
3390 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3391 ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000);
3395 const char *av_get_profile_name(const AVCodec *codec, int profile)
3398 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3401 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3402 if (p->profile == profile)
3408 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
3410 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
3413 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
3416 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3417 if (p->profile == profile)
3423 unsigned avcodec_version(void)
3425 // av_assert0(AV_CODEC_ID_V410==164);
3426 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3427 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3428 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3429 av_assert0(AV_CODEC_ID_SRT==94216);
3430 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3432 return LIBAVCODEC_VERSION_INT;
3435 const char *avcodec_configuration(void)
3437 return FFMPEG_CONFIGURATION;
3440 const char *avcodec_license(void)
3442 #define LICENSE_PREFIX "libavcodec license: "
3443 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3446 void avcodec_flush_buffers(AVCodecContext *avctx)
3448 avctx->internal->draining = 0;
3449 avctx->internal->draining_done = 0;
3450 av_frame_unref(avctx->internal->buffer_frame);
3451 av_packet_unref(avctx->internal->buffer_pkt);
3452 avctx->internal->buffer_pkt_valid = 0;
3454 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3455 ff_thread_flush(avctx);
3456 else if (avctx->codec->flush)
3457 avctx->codec->flush(avctx);
3459 avctx->pts_correction_last_pts =
3460 avctx->pts_correction_last_dts = INT64_MIN;
3462 if (!avctx->refcounted_frames)
3463 av_frame_unref(avctx->internal->to_free);
3466 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3469 case AV_CODEC_ID_8SVX_EXP:
3470 case AV_CODEC_ID_8SVX_FIB:
3471 case AV_CODEC_ID_ADPCM_CT:
3472 case AV_CODEC_ID_ADPCM_IMA_APC:
3473 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3474 case AV_CODEC_ID_ADPCM_IMA_OKI:
3475 case AV_CODEC_ID_ADPCM_IMA_WS:
3476 case AV_CODEC_ID_ADPCM_G722:
3477 case AV_CODEC_ID_ADPCM_YAMAHA:
3478 case AV_CODEC_ID_ADPCM_AICA:
3480 case AV_CODEC_ID_DSD_LSBF:
3481 case AV_CODEC_ID_DSD_MSBF:
3482 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3483 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3484 case AV_CODEC_ID_PCM_ALAW:
3485 case AV_CODEC_ID_PCM_MULAW:
3486 case AV_CODEC_ID_PCM_S8:
3487 case AV_CODEC_ID_PCM_S8_PLANAR:
3488 case AV_CODEC_ID_PCM_U8:
3489 case AV_CODEC_ID_PCM_ZORK:
3490 case AV_CODEC_ID_SDX2_DPCM:
3492 case AV_CODEC_ID_PCM_S16BE:
3493 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3494 case AV_CODEC_ID_PCM_S16LE:
3495 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3496 case AV_CODEC_ID_PCM_U16BE:
3497 case AV_CODEC_ID_PCM_U16LE:
3499 case AV_CODEC_ID_PCM_S24DAUD:
3500 case AV_CODEC_ID_PCM_S24BE:
3501 case AV_CODEC_ID_PCM_S24LE:
3502 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3503 case AV_CODEC_ID_PCM_U24BE:
3504 case AV_CODEC_ID_PCM_U24LE:
3506 case AV_CODEC_ID_PCM_S32BE:
3507 case AV_CODEC_ID_PCM_S32LE:
3508 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3509 case AV_CODEC_ID_PCM_U32BE:
3510 case AV_CODEC_ID_PCM_U32LE:
3511 case AV_CODEC_ID_PCM_F32BE:
3512 case AV_CODEC_ID_PCM_F32LE:
3513 case AV_CODEC_ID_PCM_F24LE:
3514 case AV_CODEC_ID_PCM_F16LE:
3516 case AV_CODEC_ID_PCM_F64BE:
3517 case AV_CODEC_ID_PCM_F64LE:
3518 case AV_CODEC_ID_PCM_S64BE:
3519 case AV_CODEC_ID_PCM_S64LE:
3526 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3528 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3529 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3530 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3531 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3532 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3533 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3534 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3535 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3536 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3537 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
3538 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3539 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3541 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3542 return AV_CODEC_ID_NONE;
3543 if (be < 0 || be > 1)
3545 return map[fmt][be];
3548 int av_get_bits_per_sample(enum AVCodecID codec_id)
3551 case AV_CODEC_ID_ADPCM_SBPRO_2:
3553 case AV_CODEC_ID_ADPCM_SBPRO_3:
3555 case AV_CODEC_ID_ADPCM_SBPRO_4:
3556 case AV_CODEC_ID_ADPCM_IMA_WAV:
3557 case AV_CODEC_ID_ADPCM_IMA_QT:
3558 case AV_CODEC_ID_ADPCM_SWF:
3559 case AV_CODEC_ID_ADPCM_MS:
3562 return av_get_exact_bits_per_sample(codec_id);
3566 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
3567 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
3568 uint8_t * extradata, int frame_size, int frame_bytes)
3570 int bps = av_get_exact_bits_per_sample(id);
3571 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
3573 /* codecs with an exact constant bits per sample */
3574 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3575 return (frame_bytes * 8LL) / (bps * ch);
3576 bps = bits_per_coded_sample;
3578 /* codecs with a fixed packet duration */
3580 case AV_CODEC_ID_ADPCM_ADX: return 32;
3581 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3582 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3583 case AV_CODEC_ID_AMR_NB:
3584 case AV_CODEC_ID_EVRC:
3585 case AV_CODEC_ID_GSM:
3586 case AV_CODEC_ID_QCELP:
3587 case AV_CODEC_ID_RA_288: return 160;
3588 case AV_CODEC_ID_AMR_WB:
3589 case AV_CODEC_ID_GSM_MS: return 320;
3590 case AV_CODEC_ID_MP1: return 384;
3591 case AV_CODEC_ID_ATRAC1: return 512;
3592 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
3593 case AV_CODEC_ID_ATRAC3P: return 2048;
3594 case AV_CODEC_ID_MP2:
3595 case AV_CODEC_ID_MUSEPACK7: return 1152;
3596 case AV_CODEC_ID_AC3: return 1536;
3600 /* calc from sample rate */
3601 if (id == AV_CODEC_ID_TTA)
3602 return 256 * sr / 245;
3603 else if (id == AV_CODEC_ID_DST)
3604 return 588 * sr / 44100;
3607 /* calc from sample rate and channels */
3608 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3609 return (480 << (sr / 22050)) / ch;
3614 /* calc from block_align */
3615 if (id == AV_CODEC_ID_SIPR) {
3617 case 20: return 160;
3618 case 19: return 144;
3619 case 29: return 288;
3620 case 37: return 480;
3622 } else if (id == AV_CODEC_ID_ILBC) {
3624 case 38: return 160;
3625 case 50: return 240;
3630 if (frame_bytes > 0) {
3631 /* calc from frame_bytes only */
3632 if (id == AV_CODEC_ID_TRUESPEECH)
3633 return 240 * (frame_bytes / 32);
3634 if (id == AV_CODEC_ID_NELLYMOSER)
3635 return 256 * (frame_bytes / 64);
3636 if (id == AV_CODEC_ID_RA_144)
3637 return 160 * (frame_bytes / 20);
3638 if (id == AV_CODEC_ID_G723_1)
3639 return 240 * (frame_bytes / 24);
3642 /* calc from frame_bytes and bits_per_coded_sample */
3643 if (id == AV_CODEC_ID_ADPCM_G726)
3644 return frame_bytes * 8 / bps;
3647 if (ch > 0 && ch < INT_MAX/16) {
3648 /* calc from frame_bytes and channels */
3650 case AV_CODEC_ID_ADPCM_AFC:
3651 return frame_bytes / (9 * ch) * 16;
3652 case AV_CODEC_ID_ADPCM_PSX:
3653 case AV_CODEC_ID_ADPCM_DTK:
3654 return frame_bytes / (16 * ch) * 28;
3655 case AV_CODEC_ID_ADPCM_4XM:
3656 case AV_CODEC_ID_ADPCM_IMA_DAT4:
3657 case AV_CODEC_ID_ADPCM_IMA_ISS:
3658 return (frame_bytes - 4 * ch) * 2 / ch;
3659 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3660 return (frame_bytes - 4) * 2 / ch;
3661 case AV_CODEC_ID_ADPCM_IMA_AMV:
3662 return (frame_bytes - 8) * 2 / ch;
3663 case AV_CODEC_ID_ADPCM_THP:
3664 case AV_CODEC_ID_ADPCM_THP_LE:
3666 return frame_bytes * 14 / (8 * ch);
3668 case AV_CODEC_ID_ADPCM_XA:
3669 return (frame_bytes / 128) * 224 / ch;
3670 case AV_CODEC_ID_INTERPLAY_DPCM:
3671 return (frame_bytes - 6 - ch) / ch;
3672 case AV_CODEC_ID_ROQ_DPCM:
3673 return (frame_bytes - 8) / ch;
3674 case AV_CODEC_ID_XAN_DPCM:
3675 return (frame_bytes - 2 * ch) / ch;
3676 case AV_CODEC_ID_MACE3:
3677 return 3 * frame_bytes / ch;
3678 case AV_CODEC_ID_MACE6:
3679 return 6 * frame_bytes / ch;
3680 case AV_CODEC_ID_PCM_LXF:
3681 return 2 * (frame_bytes / (5 * ch));
3682 case AV_CODEC_ID_IAC:
3683 case AV_CODEC_ID_IMC:
3684 return 4 * frame_bytes / ch;
3688 /* calc from frame_bytes, channels, and codec_tag */
3689 if (id == AV_CODEC_ID_SOL_DPCM) {
3691 return frame_bytes / ch;
3693 return frame_bytes * 2 / ch;
3698 /* calc from frame_bytes, channels, and block_align */
3699 int blocks = frame_bytes / ba;
3701 case AV_CODEC_ID_ADPCM_IMA_WAV:
3702 if (bps < 2 || bps > 5)
3704 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3705 case AV_CODEC_ID_ADPCM_IMA_DK3:
3706 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3707 case AV_CODEC_ID_ADPCM_IMA_DK4:
3708 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3709 case AV_CODEC_ID_ADPCM_IMA_RAD:
3710 return blocks * ((ba - 4 * ch) * 2 / ch);
3711 case AV_CODEC_ID_ADPCM_MS:
3712 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3713 case AV_CODEC_ID_ADPCM_MTAF:
3714 return blocks * (ba - 16) * 2 / ch;
3719 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3721 case AV_CODEC_ID_PCM_DVD:
3724 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3725 case AV_CODEC_ID_PCM_BLURAY:
3728 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3729 case AV_CODEC_ID_S302M:
3730 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3736 /* Fall back on using frame_size */
3737 if (frame_size > 1 && frame_bytes)
3740 //For WMA we currently have no other means to calculate duration thus we
3741 //do it here by assuming CBR, which is true for all known cases.
3742 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
3743 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
3744 return (frame_bytes * 8LL * sr) / bitrate;
3750 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3752 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
3753 avctx->channels, avctx->block_align,
3754 avctx->codec_tag, avctx->bits_per_coded_sample,
3755 avctx->bit_rate, avctx->extradata, avctx->frame_size,
3759 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
3761 return get_audio_frame_duration(par->codec_id, par->sample_rate,
3762 par->channels, par->block_align,
3763 par->codec_tag, par->bits_per_coded_sample,
3764 par->bit_rate, par->extradata, par->frame_size,
3769 int ff_thread_init(AVCodecContext *s)
3776 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3790 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3793 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3797 #if FF_API_MISSING_SAMPLE
3798 FF_DISABLE_DEPRECATION_WARNINGS
3799 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3801 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3802 "version to the newest one from Git. If the problem still "
3803 "occurs, it means that your file has a feature which has not "
3804 "been implemented.\n", feature);
3806 av_log_ask_for_sample(avc, NULL);
3809 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3811 va_list argument_list;
3813 va_start(argument_list, msg);
3816 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3817 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3818 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3819 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3821 va_end(argument_list);
3823 FF_ENABLE_DEPRECATION_WARNINGS
3824 #endif /* FF_API_MISSING_SAMPLE */
3826 static AVHWAccel *first_hwaccel = NULL;
3827 static AVHWAccel **last_hwaccel = &first_hwaccel;
3829 void av_register_hwaccel(AVHWAccel *hwaccel)
3831 AVHWAccel **p = last_hwaccel;
3832 hwaccel->next = NULL;
3833 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3835 last_hwaccel = &hwaccel->next;
3838 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3840 return hwaccel ? hwaccel->next : first_hwaccel;
3843 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3846 // There is no good way to rollback a failure to destroy the
3847 // mutex, so we ignore failures.
3848 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3849 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3852 avformat_mutex = NULL;
3856 void *new_codec_mutex = NULL;
3857 void *new_avformat_mutex = NULL;
3859 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3860 return err > 0 ? AVERROR_UNKNOWN : err;
3862 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3863 // Ignore failures to destroy the newly created mutex.
3864 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3865 return err > 0 ? AVERROR_UNKNOWN : err;
3868 codec_mutex = new_codec_mutex;
3869 avformat_mutex = new_avformat_mutex;
3875 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3877 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3881 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3885 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) {
3886 av_log(log_ctx, AV_LOG_ERROR,
3887 "Insufficient thread locking. At least %d threads are "
3888 "calling avcodec_open2() at the same time right now.\n",
3889 entangled_thread_counter);
3891 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3892 ff_avcodec_locked = 1;
3893 ff_unlock_avcodec(codec);
3894 return AVERROR(EINVAL);
3896 av_assert0(!ff_avcodec_locked);
3897 ff_avcodec_locked = 1;
3901 int ff_unlock_avcodec(const AVCodec *codec)
3903 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3906 av_assert0(ff_avcodec_locked);
3907 ff_avcodec_locked = 0;
3908 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3910 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3917 int avpriv_lock_avformat(void)
3920 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3926 int avpriv_unlock_avformat(void)
3929 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3935 unsigned int avpriv_toupper4(unsigned int x)
3937 return av_toupper(x & 0xFF) +
3938 (av_toupper((x >> 8) & 0xFF) << 8) +
3939 (av_toupper((x >> 16) & 0xFF) << 16) +
3940 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3943 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3947 dst->owner = src->owner;
3949 ret = av_frame_ref(dst->f, src->f);
3953 av_assert0(!dst->progress);
3955 if (src->progress &&
3956 !(dst->progress = av_buffer_ref(src->progress))) {
3957 ff_thread_release_buffer(dst->owner, dst);
3958 return AVERROR(ENOMEM);
3966 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3968 return ff_get_format(avctx, fmt);
3971 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3974 return ff_get_buffer(avctx, f->f, flags);
3977 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3980 av_frame_unref(f->f);
3983 void ff_thread_finish_setup(AVCodecContext *avctx)
3987 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3991 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3995 int ff_thread_can_start_frame(AVCodecContext *avctx)
4000 int ff_alloc_entries(AVCodecContext *avctx, int count)
4005 void ff_reset_entries(AVCodecContext *avctx)
4009 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
4013 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
4019 int avcodec_is_open(AVCodecContext *s)
4021 return !!s->internal;
4024 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
4029 ret = av_bprint_finalize(buf, &str);
4032 if (!av_bprint_is_complete(buf)) {
4034 return AVERROR(ENOMEM);
4037 avctx->extradata = str;
4038 /* Note: the string is NUL terminated (so extradata can be read as a
4039 * string), but the ending character is not accounted in the size (in
4040 * binary formats you are likely not supposed to mux that character). When
4041 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
4043 avctx->extradata_size = buf->len;
4047 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
4049 uint32_t *av_restrict state)
4053 av_assert0(p <= end);
4057 for (i = 0; i < 3; i++) {
4058 uint32_t tmp = *state << 8;
4059 *state = tmp + *(p++);
4060 if (tmp == 0x100 || p == end)
4065 if (p[-1] > 1 ) p += 3;
4066 else if (p[-2] ) p += 2;
4067 else if (p[-3]|(p[-1]-1)) p++;
4074 p = FFMIN(p, end) - 4;
4075 *state = AV_RB32(p);
4080 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
4082 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
4087 *size = sizeof(*props);
4089 props->vbv_delay = UINT64_MAX;
4094 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
4096 AVPacketSideData *tmp;
4097 AVCPBProperties *props;
4100 props = av_cpb_properties_alloc(&size);
4104 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
4110 avctx->coded_side_data = tmp;
4111 avctx->nb_coded_side_data++;
4113 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
4114 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
4115 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
4120 static void codec_parameters_reset(AVCodecParameters *par)
4122 av_freep(&par->extradata);
4124 memset(par, 0, sizeof(*par));
4126 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
4127 par->codec_id = AV_CODEC_ID_NONE;
4129 par->field_order = AV_FIELD_UNKNOWN;
4130 par->color_range = AVCOL_RANGE_UNSPECIFIED;
4131 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
4132 par->color_trc = AVCOL_TRC_UNSPECIFIED;
4133 par->color_space = AVCOL_SPC_UNSPECIFIED;
4134 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
4135 par->sample_aspect_ratio = (AVRational){ 0, 1 };
4136 par->profile = FF_PROFILE_UNKNOWN;
4137 par->level = FF_LEVEL_UNKNOWN;
4140 AVCodecParameters *avcodec_parameters_alloc(void)
4142 AVCodecParameters *par = av_mallocz(sizeof(*par));
4146 codec_parameters_reset(par);
4150 void avcodec_parameters_free(AVCodecParameters **ppar)
4152 AVCodecParameters *par = *ppar;
4156 codec_parameters_reset(par);
4161 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
4163 codec_parameters_reset(dst);
4164 memcpy(dst, src, sizeof(*dst));
4166 dst->extradata = NULL;
4167 dst->extradata_size = 0;
4168 if (src->extradata) {
4169 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
4170 if (!dst->extradata)
4171 return AVERROR(ENOMEM);
4172 memcpy(dst->extradata, src->extradata, src->extradata_size);
4173 dst->extradata_size = src->extradata_size;
4179 int avcodec_parameters_from_context(AVCodecParameters *par,
4180 const AVCodecContext *codec)
4182 codec_parameters_reset(par);
4184 par->codec_type = codec->codec_type;
4185 par->codec_id = codec->codec_id;
4186 par->codec_tag = codec->codec_tag;
4188 par->bit_rate = codec->bit_rate;
4189 par->bits_per_coded_sample = codec->bits_per_coded_sample;
4190 par->bits_per_raw_sample = codec->bits_per_raw_sample;
4191 par->profile = codec->profile;
4192 par->level = codec->level;
4194 switch (par->codec_type) {
4195 case AVMEDIA_TYPE_VIDEO:
4196 par->format = codec->pix_fmt;
4197 par->width = codec->width;
4198 par->height = codec->height;
4199 par->field_order = codec->field_order;
4200 par->color_range = codec->color_range;
4201 par->color_primaries = codec->color_primaries;
4202 par->color_trc = codec->color_trc;
4203 par->color_space = codec->colorspace;
4204 par->chroma_location = codec->chroma_sample_location;
4205 par->sample_aspect_ratio = codec->sample_aspect_ratio;
4206 par->video_delay = codec->has_b_frames;
4208 case AVMEDIA_TYPE_AUDIO:
4209 par->format = codec->sample_fmt;
4210 par->channel_layout = codec->channel_layout;
4211 par->channels = codec->channels;
4212 par->sample_rate = codec->sample_rate;
4213 par->block_align = codec->block_align;
4214 par->frame_size = codec->frame_size;
4215 par->initial_padding = codec->initial_padding;
4216 par->trailing_padding = codec->trailing_padding;
4217 par->seek_preroll = codec->seek_preroll;
4219 case AVMEDIA_TYPE_SUBTITLE:
4220 par->width = codec->width;
4221 par->height = codec->height;
4225 if (codec->extradata) {
4226 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
4227 if (!par->extradata)
4228 return AVERROR(ENOMEM);
4229 memcpy(par->extradata, codec->extradata, codec->extradata_size);
4230 par->extradata_size = codec->extradata_size;
4236 int avcodec_parameters_to_context(AVCodecContext *codec,
4237 const AVCodecParameters *par)
4239 codec->codec_type = par->codec_type;
4240 codec->codec_id = par->codec_id;
4241 codec->codec_tag = par->codec_tag;
4243 codec->bit_rate = par->bit_rate;
4244 codec->bits_per_coded_sample = par->bits_per_coded_sample;
4245 codec->bits_per_raw_sample = par->bits_per_raw_sample;
4246 codec->profile = par->profile;
4247 codec->level = par->level;
4249 switch (par->codec_type) {
4250 case AVMEDIA_TYPE_VIDEO:
4251 codec->pix_fmt = par->format;
4252 codec->width = par->width;
4253 codec->height = par->height;
4254 codec->field_order = par->field_order;
4255 codec->color_range = par->color_range;
4256 codec->color_primaries = par->color_primaries;
4257 codec->color_trc = par->color_trc;
4258 codec->colorspace = par->color_space;
4259 codec->chroma_sample_location = par->chroma_location;
4260 codec->sample_aspect_ratio = par->sample_aspect_ratio;
4261 codec->has_b_frames = par->video_delay;
4263 case AVMEDIA_TYPE_AUDIO:
4264 codec->sample_fmt = par->format;
4265 codec->channel_layout = par->channel_layout;
4266 codec->channels = par->channels;
4267 codec->sample_rate = par->sample_rate;
4268 codec->block_align = par->block_align;
4269 codec->frame_size = par->frame_size;
4271 codec->initial_padding = par->initial_padding;
4272 codec->trailing_padding = par->trailing_padding;
4273 codec->seek_preroll = par->seek_preroll;
4275 case AVMEDIA_TYPE_SUBTITLE:
4276 codec->width = par->width;
4277 codec->height = par->height;
4281 if (par->extradata) {
4282 av_freep(&codec->extradata);
4283 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
4284 if (!codec->extradata)
4285 return AVERROR(ENOMEM);
4286 memcpy(codec->extradata, par->extradata, par->extradata_size);
4287 codec->extradata_size = par->extradata_size;
4293 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
4294 void **data, size_t *sei_size)
4296 AVFrameSideData *side_data = NULL;
4300 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
4307 *sei_size = side_data->size + 11;
4308 *data = av_mallocz(*sei_size + prefix_len);
4310 return AVERROR(ENOMEM);
4311 sei_data = (uint8_t*)*data + prefix_len;
4319 * 'GA94' is standard in North America for ATSC, but hard coding
4320 * this style may not be the right thing to do -- other formats
4321 * do exist. This information is not available in the side_data
4322 * so we are going with this right now.
4324 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
4326 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
4329 memcpy(sei_data + 10, side_data->data, side_data->size);
4331 sei_data[side_data->size+10] = 255;