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(const 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 const 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);
1596 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
1597 avctx->sw_pix_fmt != frames_ctx->sw_format) {
1598 av_log(avctx, AV_LOG_ERROR,
1599 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
1600 "and AVHWFramesContext.sw_format (%s)\n",
1601 av_get_pix_fmt_name(avctx->sw_pix_fmt),
1602 av_get_pix_fmt_name(frames_ctx->sw_format));
1603 ret = AVERROR(EINVAL);
1606 avctx->sw_pix_fmt = frames_ctx->sw_format;
1610 avctx->pts_correction_num_faulty_pts =
1611 avctx->pts_correction_num_faulty_dts = 0;
1612 avctx->pts_correction_last_pts =
1613 avctx->pts_correction_last_dts = INT64_MIN;
1615 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1616 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1617 av_log(avctx, AV_LOG_WARNING,
1618 "gray decoding requested but not enabled at configuration time\n");
1620 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1621 || avctx->internal->frame_thread_encoder)) {
1622 ret = avctx->codec->init(avctx);
1630 #if FF_API_AUDIOENC_DELAY
1631 if (av_codec_is_encoder(avctx->codec))
1632 avctx->delay = avctx->initial_padding;
1635 if (av_codec_is_decoder(avctx->codec)) {
1636 if (!avctx->bit_rate)
1637 avctx->bit_rate = get_bit_rate(avctx);
1638 /* validate channel layout from the decoder */
1639 if (avctx->channel_layout) {
1640 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1641 if (!avctx->channels)
1642 avctx->channels = channels;
1643 else if (channels != avctx->channels) {
1645 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1646 av_log(avctx, AV_LOG_WARNING,
1647 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1648 "ignoring specified channel layout\n",
1649 buf, channels, avctx->channels);
1650 avctx->channel_layout = 0;
1653 if (avctx->channels && avctx->channels < 0 ||
1654 avctx->channels > FF_SANE_NB_CHANNELS) {
1655 ret = AVERROR(EINVAL);
1658 if (avctx->sub_charenc) {
1659 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1660 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1661 "supported with subtitles codecs\n");
1662 ret = AVERROR(EINVAL);
1664 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1665 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1666 "subtitles character encoding will be ignored\n",
1667 avctx->codec_descriptor->name);
1668 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1670 /* input character encoding is set for a text based subtitle
1671 * codec at this point */
1672 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1673 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1675 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1677 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1678 if (cd == (iconv_t)-1) {
1679 ret = AVERROR(errno);
1680 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1681 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1686 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1687 "conversion needs a libavcodec built with iconv support "
1688 "for this codec\n");
1689 ret = AVERROR(ENOSYS);
1696 #if FF_API_AVCTX_TIMEBASE
1697 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1698 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1701 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1702 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1706 ff_unlock_avcodec(codec);
1708 av_dict_free(options);
1715 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1716 avctx->codec->close(avctx);
1718 if (codec->priv_class && codec->priv_data_size)
1719 av_opt_free(avctx->priv_data);
1722 #if FF_API_CODED_FRAME
1723 FF_DISABLE_DEPRECATION_WARNINGS
1724 av_frame_free(&avctx->coded_frame);
1725 FF_ENABLE_DEPRECATION_WARNINGS
1729 av_freep(&avctx->priv_data);
1730 if (avctx->internal) {
1731 av_frame_free(&avctx->internal->to_free);
1732 av_frame_free(&avctx->internal->buffer_frame);
1733 av_packet_free(&avctx->internal->buffer_pkt);
1734 av_freep(&avctx->internal->pool);
1736 av_freep(&avctx->internal);
1737 avctx->codec = NULL;
1741 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1743 if (avpkt->size < 0) {
1744 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1745 return AVERROR(EINVAL);
1747 if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
1748 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1749 size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1750 return AVERROR(EINVAL);
1753 if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1754 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1755 if (!avpkt->data || avpkt->size < size) {
1756 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1757 avpkt->data = avctx->internal->byte_buffer;
1758 avpkt->size = avctx->internal->byte_buffer_size;
1763 AVBufferRef *buf = avpkt->buf;
1765 if (avpkt->size < size) {
1766 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1767 return AVERROR(EINVAL);
1770 av_init_packet(avpkt);
1775 int ret = av_new_packet(avpkt, size);
1777 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1782 int ff_alloc_packet(AVPacket *avpkt, int size)
1784 return ff_alloc_packet2(NULL, avpkt, size, 0);
1788 * Pad last frame with silence.
1790 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1792 AVFrame *frame = NULL;
1795 if (!(frame = av_frame_alloc()))
1796 return AVERROR(ENOMEM);
1798 frame->format = src->format;
1799 frame->channel_layout = src->channel_layout;
1800 av_frame_set_channels(frame, av_frame_get_channels(src));
1801 frame->nb_samples = s->frame_size;
1802 ret = av_frame_get_buffer(frame, 32);
1806 ret = av_frame_copy_props(frame, src);
1810 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1811 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1813 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1814 frame->nb_samples - src->nb_samples,
1815 s->channels, s->sample_fmt)) < 0)
1823 av_frame_free(&frame);
1827 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1829 const AVFrame *frame,
1830 int *got_packet_ptr)
1832 AVFrame *extended_frame = NULL;
1833 AVFrame *padded_frame = NULL;
1835 AVPacket user_pkt = *avpkt;
1836 int needs_realloc = !user_pkt.data;
1838 *got_packet_ptr = 0;
1840 if (!avctx->codec->encode2) {
1841 av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1842 return AVERROR(ENOSYS);
1845 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1846 av_packet_unref(avpkt);
1847 av_init_packet(avpkt);
1851 /* ensure that extended_data is properly set */
1852 if (frame && !frame->extended_data) {
1853 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1854 avctx->channels > AV_NUM_DATA_POINTERS) {
1855 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1856 "with more than %d channels, but extended_data is not set.\n",
1857 AV_NUM_DATA_POINTERS);
1858 return AVERROR(EINVAL);
1860 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1862 extended_frame = av_frame_alloc();
1863 if (!extended_frame)
1864 return AVERROR(ENOMEM);
1866 memcpy(extended_frame, frame, sizeof(AVFrame));
1867 extended_frame->extended_data = extended_frame->data;
1868 frame = extended_frame;
1871 /* extract audio service type metadata */
1873 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1874 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1875 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1878 /* check for valid frame size */
1880 if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
1881 if (frame->nb_samples > avctx->frame_size) {
1882 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1883 ret = AVERROR(EINVAL);
1886 } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1887 if (frame->nb_samples < avctx->frame_size &&
1888 !avctx->internal->last_audio_frame) {
1889 ret = pad_last_frame(avctx, &padded_frame, frame);
1893 frame = padded_frame;
1894 avctx->internal->last_audio_frame = 1;
1897 if (frame->nb_samples != avctx->frame_size) {
1898 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1899 ret = AVERROR(EINVAL);
1905 av_assert0(avctx->codec->encode2);
1907 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1909 if (*got_packet_ptr) {
1910 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1911 if (avpkt->pts == AV_NOPTS_VALUE)
1912 avpkt->pts = frame->pts;
1913 if (!avpkt->duration)
1914 avpkt->duration = ff_samples_to_time_base(avctx,
1917 avpkt->dts = avpkt->pts;
1922 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1924 if (user_pkt.data) {
1925 if (user_pkt.size >= avpkt->size) {
1926 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1928 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1929 avpkt->size = user_pkt.size;
1932 avpkt->buf = user_pkt.buf;
1933 avpkt->data = user_pkt.data;
1935 if (av_dup_packet(avpkt) < 0) {
1936 ret = AVERROR(ENOMEM);
1942 if (needs_realloc && avpkt->data) {
1943 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1945 avpkt->data = avpkt->buf->data;
1948 avctx->frame_number++;
1951 if (ret < 0 || !*got_packet_ptr) {
1952 av_packet_unref(avpkt);
1953 av_init_packet(avpkt);
1957 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1958 * this needs to be moved to the encoders, but for now we can do it
1959 * here to simplify things */
1960 avpkt->flags |= AV_PKT_FLAG_KEY;
1963 av_frame_free(&padded_frame);
1964 av_free(extended_frame);
1966 #if FF_API_AUDIOENC_DELAY
1967 avctx->delay = avctx->initial_padding;
1973 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1975 const AVFrame *frame,
1976 int *got_packet_ptr)
1979 AVPacket user_pkt = *avpkt;
1980 int needs_realloc = !user_pkt.data;
1982 *got_packet_ptr = 0;
1984 if (!avctx->codec->encode2) {
1985 av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1986 return AVERROR(ENOSYS);
1989 if(CONFIG_FRAME_THREAD_ENCODER &&
1990 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1991 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1993 if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
1994 avctx->stats_out[0] = '\0';
1996 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1997 av_packet_unref(avpkt);
1998 av_init_packet(avpkt);
2003 if (av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx))
2004 return AVERROR(EINVAL);
2006 if (frame && frame->format == AV_PIX_FMT_NONE)
2007 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
2008 if (frame && (frame->width == 0 || frame->height == 0))
2009 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
2011 av_assert0(avctx->codec->encode2);
2013 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2014 av_assert0(ret <= 0);
2018 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2020 if (user_pkt.data) {
2021 if (user_pkt.size >= avpkt->size) {
2022 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2024 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2025 avpkt->size = user_pkt.size;
2028 avpkt->buf = user_pkt.buf;
2029 avpkt->data = user_pkt.data;
2031 if (av_dup_packet(avpkt) < 0) {
2032 ret = AVERROR(ENOMEM);
2038 if (!*got_packet_ptr)
2040 else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2041 avpkt->pts = avpkt->dts = frame->pts;
2043 if (needs_realloc && avpkt->data) {
2044 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
2046 avpkt->data = avpkt->buf->data;
2049 avctx->frame_number++;
2052 if (ret < 0 || !*got_packet_ptr)
2053 av_packet_unref(avpkt);
2058 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2059 const AVSubtitle *sub)
2062 if (sub->start_display_time) {
2063 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2067 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2068 avctx->frame_number++;
2073 * Attempt to guess proper monotonic timestamps for decoded video frames
2074 * which might have incorrect times. Input timestamps may wrap around, in
2075 * which case the output will as well.
2077 * @param pts the pts field of the decoded AVPacket, as passed through
2079 * @param dts the dts field of the decoded AVPacket
2080 * @return one of the input values, may be AV_NOPTS_VALUE
2082 static int64_t guess_correct_pts(AVCodecContext *ctx,
2083 int64_t reordered_pts, int64_t dts)
2085 int64_t pts = AV_NOPTS_VALUE;
2087 if (dts != AV_NOPTS_VALUE) {
2088 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2089 ctx->pts_correction_last_dts = dts;
2090 } else if (reordered_pts != AV_NOPTS_VALUE)
2091 ctx->pts_correction_last_dts = reordered_pts;
2093 if (reordered_pts != AV_NOPTS_VALUE) {
2094 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2095 ctx->pts_correction_last_pts = reordered_pts;
2096 } else if(dts != AV_NOPTS_VALUE)
2097 ctx->pts_correction_last_pts = dts;
2099 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2100 && reordered_pts != AV_NOPTS_VALUE)
2101 pts = reordered_pts;
2108 static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt)
2111 const uint8_t *data;
2115 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2119 if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
2120 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2121 "changes, but PARAM_CHANGE side data was sent to it.\n");
2122 ret = AVERROR(EINVAL);
2129 flags = bytestream_get_le32(&data);
2132 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2135 val = bytestream_get_le32(&data);
2136 if (val <= 0 || val > INT_MAX) {
2137 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2138 ret = AVERROR_INVALIDDATA;
2141 avctx->channels = val;
2144 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2147 avctx->channel_layout = bytestream_get_le64(&data);
2150 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2153 val = bytestream_get_le32(&data);
2154 if (val <= 0 || val > INT_MAX) {
2155 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2156 ret = AVERROR_INVALIDDATA;
2159 avctx->sample_rate = val;
2162 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2165 avctx->width = bytestream_get_le32(&data);
2166 avctx->height = bytestream_get_le32(&data);
2168 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2175 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2176 ret = AVERROR_INVALIDDATA;
2179 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2180 if (avctx->err_recognition & AV_EF_EXPLODE)
2186 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2190 /* move the original frame to our backup */
2191 av_frame_unref(avci->to_free);
2192 av_frame_move_ref(avci->to_free, frame);
2194 /* now copy everything except the AVBufferRefs back
2195 * note that we make a COPY of the side data, so calling av_frame_free() on
2196 * the caller's frame will work properly */
2197 ret = av_frame_copy_props(frame, avci->to_free);
2201 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2202 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2203 if (avci->to_free->extended_data != avci->to_free->data) {
2204 int planes = av_frame_get_channels(avci->to_free);
2205 int size = planes * sizeof(*frame->extended_data);
2208 av_frame_unref(frame);
2212 frame->extended_data = av_malloc(size);
2213 if (!frame->extended_data) {
2214 av_frame_unref(frame);
2215 return AVERROR(ENOMEM);
2217 memcpy(frame->extended_data, avci->to_free->extended_data,
2220 frame->extended_data = frame->data;
2222 frame->format = avci->to_free->format;
2223 frame->width = avci->to_free->width;
2224 frame->height = avci->to_free->height;
2225 frame->channel_layout = avci->to_free->channel_layout;
2226 frame->nb_samples = avci->to_free->nb_samples;
2227 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2232 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2233 int *got_picture_ptr,
2234 const AVPacket *avpkt)
2236 AVCodecInternal *avci = avctx->internal;
2238 // copy to ensure we do not change avpkt
2239 AVPacket tmp = *avpkt;
2242 return AVERROR(EINVAL);
2243 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2244 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2245 return AVERROR(EINVAL);
2248 if (!avctx->codec->decode) {
2249 av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2250 return AVERROR(ENOSYS);
2253 *got_picture_ptr = 0;
2254 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))
2255 return AVERROR(EINVAL);
2257 avctx->internal->pkt = avpkt;
2258 ret = apply_param_change(avctx, avpkt);
2262 av_frame_unref(picture);
2264 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2265 (avctx->active_thread_type & FF_THREAD_FRAME)) {
2267 FF_DISABLE_DEPRECATION_WARNINGS
2268 int did_split = av_packet_split_side_data(&tmp);
2269 FF_ENABLE_DEPRECATION_WARNINGS
2271 ret = apply_param_change(avctx, &tmp);
2275 avctx->internal->pkt = &tmp;
2276 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2277 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2280 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2282 if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
2283 picture->pkt_dts = avpkt->dts;
2285 if(!avctx->has_b_frames){
2286 av_frame_set_pkt_pos(picture, avpkt->pos);
2288 //FIXME these should be under if(!avctx->has_b_frames)
2289 /* get_buffer is supposed to set frame parameters */
2290 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2291 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2292 if (!picture->width) picture->width = avctx->width;
2293 if (!picture->height) picture->height = avctx->height;
2294 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2299 emms_c(); //needed to avoid an emms_c() call before every return;
2301 avctx->internal->pkt = NULL;
2304 av_packet_free_side_data(&tmp);
2309 if (picture->flags & AV_FRAME_FLAG_DISCARD) {
2310 *got_picture_ptr = 0;
2312 if (*got_picture_ptr) {
2313 if (!avctx->refcounted_frames) {
2314 int err = unrefcount_frame(avci, picture);
2319 avctx->frame_number++;
2320 av_frame_set_best_effort_timestamp(picture,
2321 guess_correct_pts(avctx,
2325 av_frame_unref(picture);
2329 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2330 * make sure it's set correctly */
2331 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2333 #if FF_API_AVCTX_TIMEBASE
2334 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2335 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2341 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2344 const AVPacket *avpkt)
2346 AVCodecInternal *avci = avctx->internal;
2352 return AVERROR(EINVAL);
2354 if (!avctx->codec->decode) {
2355 av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2356 return AVERROR(ENOSYS);
2359 if (!avpkt->data && avpkt->size) {
2360 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2361 return AVERROR(EINVAL);
2363 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2364 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2365 return AVERROR(EINVAL);
2368 av_frame_unref(frame);
2370 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2373 uint32_t discard_padding = 0;
2374 uint8_t skip_reason = 0;
2375 uint8_t discard_reason = 0;
2376 // copy to ensure we do not change avpkt
2377 AVPacket tmp = *avpkt;
2379 FF_DISABLE_DEPRECATION_WARNINGS
2380 int did_split = av_packet_split_side_data(&tmp);
2381 FF_ENABLE_DEPRECATION_WARNINGS
2383 ret = apply_param_change(avctx, &tmp);
2387 avctx->internal->pkt = &tmp;
2388 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2389 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2391 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2392 av_assert0(ret <= tmp.size);
2393 frame->pkt_dts = avpkt->dts;
2395 if (ret >= 0 && *got_frame_ptr) {
2396 avctx->frame_number++;
2397 av_frame_set_best_effort_timestamp(frame,
2398 guess_correct_pts(avctx,
2401 if (frame->format == AV_SAMPLE_FMT_NONE)
2402 frame->format = avctx->sample_fmt;
2403 if (!frame->channel_layout)
2404 frame->channel_layout = avctx->channel_layout;
2405 if (!av_frame_get_channels(frame))
2406 av_frame_set_channels(frame, avctx->channels);
2407 if (!frame->sample_rate)
2408 frame->sample_rate = avctx->sample_rate;
2411 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2412 if(side && side_size>=10) {
2413 avctx->internal->skip_samples = AV_RL32(side) * avctx->internal->skip_samples_multiplier;
2414 discard_padding = AV_RL32(side + 4);
2415 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2416 avctx->internal->skip_samples, (int)discard_padding);
2417 skip_reason = AV_RL8(side + 8);
2418 discard_reason = AV_RL8(side + 9);
2421 if ((frame->flags & AV_FRAME_FLAG_DISCARD) && *got_frame_ptr &&
2422 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2423 avctx->internal->skip_samples = FFMAX(0, avctx->internal->skip_samples - frame->nb_samples);
2427 if (avctx->internal->skip_samples > 0 && *got_frame_ptr &&
2428 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2429 if(frame->nb_samples <= avctx->internal->skip_samples){
2431 avctx->internal->skip_samples -= frame->nb_samples;
2432 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2433 avctx->internal->skip_samples);
2435 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2436 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2437 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2438 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2439 (AVRational){1, avctx->sample_rate},
2440 avctx->pkt_timebase);
2441 if(frame->pts!=AV_NOPTS_VALUE)
2442 frame->pts += diff_ts;
2444 FF_DISABLE_DEPRECATION_WARNINGS
2445 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2446 frame->pkt_pts += diff_ts;
2447 FF_ENABLE_DEPRECATION_WARNINGS
2449 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2450 frame->pkt_dts += diff_ts;
2451 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2452 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2454 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2456 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2457 avctx->internal->skip_samples, frame->nb_samples);
2458 frame->nb_samples -= avctx->internal->skip_samples;
2459 avctx->internal->skip_samples = 0;
2463 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2464 !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2465 if (discard_padding == frame->nb_samples) {
2468 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2469 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2470 (AVRational){1, avctx->sample_rate},
2471 avctx->pkt_timebase);
2472 av_frame_set_pkt_duration(frame, diff_ts);
2474 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2476 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2477 (int)discard_padding, frame->nb_samples);
2478 frame->nb_samples -= discard_padding;
2482 if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2483 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2485 AV_WL32(fside->data, avctx->internal->skip_samples);
2486 AV_WL32(fside->data + 4, discard_padding);
2487 AV_WL8(fside->data + 8, skip_reason);
2488 AV_WL8(fside->data + 9, discard_reason);
2489 avctx->internal->skip_samples = 0;
2493 avctx->internal->pkt = NULL;
2496 av_packet_free_side_data(&tmp);
2502 if (ret >= 0 && *got_frame_ptr) {
2503 if (!avctx->refcounted_frames) {
2504 int err = unrefcount_frame(avci, frame);
2509 av_frame_unref(frame);
2512 av_assert0(ret <= avpkt->size);
2514 if (!avci->showed_multi_packet_warning &&
2515 ret >= 0 && ret != avpkt->size && !(avctx->codec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
2516 av_log(avctx, AV_LOG_WARNING, "Multiple frames in a packet.\n");
2517 avci->showed_multi_packet_warning = 1;
2523 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2524 static int recode_subtitle(AVCodecContext *avctx,
2525 AVPacket *outpkt, const AVPacket *inpkt)
2528 iconv_t cd = (iconv_t)-1;
2535 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2539 cd = iconv_open("UTF-8", avctx->sub_charenc);
2540 av_assert0(cd != (iconv_t)-1);
2545 if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2546 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2547 ret = AVERROR(ENOMEM);
2551 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2554 outpkt->buf = tmp.buf;
2555 outpkt->data = tmp.data;
2556 outpkt->size = tmp.size;
2557 outb = outpkt->data;
2558 outl = outpkt->size;
2560 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2561 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2562 outl >= outpkt->size || inl != 0) {
2563 ret = FFMIN(AVERROR(errno), -1);
2564 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2565 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2566 av_packet_unref(&tmp);
2569 outpkt->size -= outl;
2570 memset(outpkt->data + outpkt->size, 0, outl);
2573 if (cd != (iconv_t)-1)
2577 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2578 return AVERROR(EINVAL);
2582 static int utf8_check(const uint8_t *str)
2584 const uint8_t *byte;
2585 uint32_t codepoint, min;
2589 GET_UTF8(codepoint, *(byte++), return 0;);
2590 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2591 1 << (5 * (byte - str) - 4);
2592 if (codepoint < min || codepoint >= 0x110000 ||
2593 codepoint == 0xFFFE /* BOM */ ||
2594 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2601 #if FF_API_ASS_TIMING
2602 static void insert_ts(AVBPrint *buf, int ts)
2605 av_bprintf(buf, "9:59:59.99,");
2609 h = ts/360000; ts -= 360000*h;
2610 m = ts/ 6000; ts -= 6000*m;
2611 s = ts/ 100; ts -= 100*s;
2612 av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
2616 static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
2621 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
2623 for (i = 0; i < sub->num_rects; i++) {
2626 AVSubtitleRect *rect = sub->rects[i];
2627 int ts_start, ts_duration = -1;
2630 if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
2633 av_bprint_clear(&buf);
2635 /* skip ReadOrder */
2636 dialog = strchr(rect->ass, ',');
2641 /* extract Layer or Marked */
2642 layer = strtol(dialog, (char**)&dialog, 10);
2647 /* rescale timing to ASS time base (ms) */
2648 ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
2649 if (pkt->duration != -1)
2650 ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
2651 sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
2653 /* construct ASS (standalone file form with timestamps) string */
2654 av_bprintf(&buf, "Dialogue: %ld,", layer);
2655 insert_ts(&buf, ts_start);
2656 insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
2657 av_bprintf(&buf, "%s\r\n", dialog);
2659 final_dialog = av_strdup(buf.str);
2660 if (!av_bprint_is_complete(&buf) || !final_dialog) {
2661 av_freep(&final_dialog);
2662 av_bprint_finalize(&buf, NULL);
2663 return AVERROR(ENOMEM);
2665 av_freep(&rect->ass);
2666 rect->ass = final_dialog;
2669 av_bprint_finalize(&buf, NULL);
2674 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2680 if (!avpkt->data && avpkt->size) {
2681 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2682 return AVERROR(EINVAL);
2685 return AVERROR(EINVAL);
2686 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2687 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2688 return AVERROR(EINVAL);
2692 get_subtitle_defaults(sub);
2694 if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2695 AVPacket pkt_recoded;
2696 AVPacket tmp = *avpkt;
2698 FF_DISABLE_DEPRECATION_WARNINGS
2699 int did_split = av_packet_split_side_data(&tmp);
2700 //apply_param_change(avctx, &tmp);
2703 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2705 * If the side data is smaller than the buffer padding size, the
2706 * remaining bytes should have already been filled with zeros by the
2707 * original packet allocation anyway. */
2708 memset(tmp.data + tmp.size, 0,
2709 FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2711 FF_ENABLE_DEPRECATION_WARNINGS
2715 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2719 avctx->internal->pkt = &pkt_recoded;
2721 if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
2722 sub->pts = av_rescale_q(avpkt->pts,
2723 avctx->pkt_timebase, AV_TIME_BASE_Q);
2724 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2725 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2726 !!*got_sub_ptr >= !!sub->num_rects);
2728 #if FF_API_ASS_TIMING
2729 if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
2730 && *got_sub_ptr && sub->num_rects) {
2731 const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
2733 int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
2739 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2740 avctx->pkt_timebase.num) {
2741 AVRational ms = { 1, 1000 };
2742 sub->end_display_time = av_rescale_q(avpkt->duration,
2743 avctx->pkt_timebase, ms);
2746 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2748 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2751 for (i = 0; i < sub->num_rects; i++) {
2752 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2753 av_log(avctx, AV_LOG_ERROR,
2754 "Invalid UTF-8 in decoded subtitles text; "
2755 "maybe missing -sub_charenc option\n");
2756 avsubtitle_free(sub);
2757 ret = AVERROR_INVALIDDATA;
2762 if (tmp.data != pkt_recoded.data) { // did we recode?
2763 /* prevent from destroying side data from original packet */
2764 pkt_recoded.side_data = NULL;
2765 pkt_recoded.side_data_elems = 0;
2767 av_packet_unref(&pkt_recoded);
2769 avctx->internal->pkt = NULL;
2774 av_packet_free_side_data(&tmp);
2781 avctx->frame_number++;
2787 void avsubtitle_free(AVSubtitle *sub)
2791 for (i = 0; i < sub->num_rects; i++) {
2792 av_freep(&sub->rects[i]->data[0]);
2793 av_freep(&sub->rects[i]->data[1]);
2794 av_freep(&sub->rects[i]->data[2]);
2795 av_freep(&sub->rects[i]->data[3]);
2796 av_freep(&sub->rects[i]->text);
2797 av_freep(&sub->rects[i]->ass);
2798 av_freep(&sub->rects[i]);
2801 av_freep(&sub->rects);
2803 memset(sub, 0, sizeof(AVSubtitle));
2806 static int do_decode(AVCodecContext *avctx, AVPacket *pkt)
2811 av_assert0(!avctx->internal->buffer_frame->buf[0]);
2814 pkt = avctx->internal->buffer_pkt;
2816 // This is the lesser evil. The field is for compatibility with legacy users
2817 // of the legacy API, and users using the new API should not be forced to
2818 // even know about this field.
2819 avctx->refcounted_frames = 1;
2821 // Some codecs (at least wma lossless) will crash when feeding drain packets
2822 // after EOF was signaled.
2823 if (avctx->internal->draining_done)
2826 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2827 ret = avcodec_decode_video2(avctx, avctx->internal->buffer_frame,
2829 if (ret >= 0 && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))
2831 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2832 ret = avcodec_decode_audio4(avctx, avctx->internal->buffer_frame,
2835 ret = AVERROR(EINVAL);
2838 if (ret == AVERROR(EAGAIN))
2841 if (avctx->internal->draining && !got_frame)
2842 avctx->internal->draining_done = 1;
2847 if (ret >= pkt->size) {
2848 av_packet_unref(avctx->internal->buffer_pkt);
2852 if (pkt != avctx->internal->buffer_pkt) {
2853 av_packet_unref(avctx->internal->buffer_pkt);
2854 if ((ret = av_packet_ref(avctx->internal->buffer_pkt, pkt)) < 0)
2858 avctx->internal->buffer_pkt->data += consumed;
2859 avctx->internal->buffer_pkt->size -= consumed;
2860 avctx->internal->buffer_pkt->pts = AV_NOPTS_VALUE;
2861 avctx->internal->buffer_pkt->dts = AV_NOPTS_VALUE;
2865 av_assert0(avctx->internal->buffer_frame->buf[0]);
2870 int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
2874 if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2875 return AVERROR(EINVAL);
2877 if (avctx->internal->draining)
2880 if (avpkt && !avpkt->size && avpkt->data)
2881 return AVERROR(EINVAL);
2883 if (!avpkt || !avpkt->size) {
2884 avctx->internal->draining = 1;
2887 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2891 if (avctx->codec->send_packet) {
2893 AVPacket tmp = *avpkt;
2895 FF_DISABLE_DEPRECATION_WARNINGS
2896 int did_split = av_packet_split_side_data(&tmp);
2897 FF_ENABLE_DEPRECATION_WARNINGS
2899 ret = apply_param_change(avctx, &tmp);
2901 ret = avctx->codec->send_packet(avctx, &tmp);
2904 av_packet_free_side_data(&tmp);
2908 return avctx->codec->send_packet(avctx, NULL);
2912 // Emulation via old API. Assume avpkt is likely not refcounted, while
2913 // decoder output is always refcounted, and avoid copying.
2915 if (avctx->internal->buffer_pkt->size || avctx->internal->buffer_frame->buf[0])
2916 return AVERROR(EAGAIN);
2918 // The goal is decoding the first frame of the packet without using memcpy,
2919 // because the common case is having only 1 frame per packet (especially
2920 // with video, but audio too). In other cases, it can't be avoided, unless
2921 // the user is feeding refcounted packets.
2922 return do_decode(avctx, (AVPacket *)avpkt);
2925 int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
2929 av_frame_unref(frame);
2931 if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2932 return AVERROR(EINVAL);
2934 if (avctx->codec->receive_frame) {
2935 if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2937 ret = avctx->codec->receive_frame(avctx, frame);
2939 if (av_frame_get_best_effort_timestamp(frame) == AV_NOPTS_VALUE) {
2940 av_frame_set_best_effort_timestamp(frame,
2941 guess_correct_pts(avctx, frame->pts, frame->pkt_dts));
2947 // Emulation via old API.
2949 if (!avctx->internal->buffer_frame->buf[0]) {
2950 if (!avctx->internal->buffer_pkt->size && !avctx->internal->draining)
2951 return AVERROR(EAGAIN);
2954 if ((ret = do_decode(avctx, avctx->internal->buffer_pkt)) < 0) {
2955 av_packet_unref(avctx->internal->buffer_pkt);
2958 // Some audio decoders may consume partial data without returning
2959 // a frame (fate-wmapro-2ch). There is no way to make the caller
2960 // call avcodec_receive_frame() again without returning a frame,
2961 // so try to decode more in these cases.
2962 if (avctx->internal->buffer_frame->buf[0] ||
2963 !avctx->internal->buffer_pkt->size)
2968 if (!avctx->internal->buffer_frame->buf[0])
2969 return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN);
2971 av_frame_move_ref(frame, avctx->internal->buffer_frame);
2975 static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet)
2980 av_packet_unref(avctx->internal->buffer_pkt);
2981 avctx->internal->buffer_pkt_valid = 0;
2983 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2984 ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt,
2986 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2987 ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt,
2990 ret = AVERROR(EINVAL);
2993 if (ret >= 0 && *got_packet) {
2994 // Encoders must always return ref-counted buffers.
2995 // Side-data only packets have no data and can be not ref-counted.
2996 av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf);
2997 avctx->internal->buffer_pkt_valid = 1;
3000 av_packet_unref(avctx->internal->buffer_pkt);
3006 int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
3008 if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
3009 return AVERROR(EINVAL);
3011 if (avctx->internal->draining)
3015 avctx->internal->draining = 1;
3017 if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
3021 if (avctx->codec->send_frame)
3022 return avctx->codec->send_frame(avctx, frame);
3024 // Emulation via old API. Do it here instead of avcodec_receive_packet, because:
3025 // 1. if the AVFrame is not refcounted, the copying will be much more
3026 // expensive than copying the packet data
3027 // 2. assume few users use non-refcounted AVPackets, so usually no copy is
3030 if (avctx->internal->buffer_pkt_valid)
3031 return AVERROR(EAGAIN);
3033 return do_encode(avctx, frame, &(int){0});
3036 int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
3038 av_packet_unref(avpkt);
3040 if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
3041 return AVERROR(EINVAL);
3043 if (avctx->codec->receive_packet) {
3044 if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
3046 return avctx->codec->receive_packet(avctx, avpkt);
3049 // Emulation via old API.
3051 if (!avctx->internal->buffer_pkt_valid) {
3054 if (!avctx->internal->draining)
3055 return AVERROR(EAGAIN);
3056 ret = do_encode(avctx, NULL, &got_packet);
3059 if (ret >= 0 && !got_packet)
3063 av_packet_move_ref(avpkt, avctx->internal->buffer_pkt);
3064 avctx->internal->buffer_pkt_valid = 0;
3068 av_cold int avcodec_close(AVCodecContext *avctx)
3075 if (avcodec_is_open(avctx)) {
3076 FramePool *pool = avctx->internal->pool;
3077 if (CONFIG_FRAME_THREAD_ENCODER &&
3078 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
3079 ff_frame_thread_encoder_free(avctx);
3081 if (HAVE_THREADS && avctx->internal->thread_ctx)
3082 ff_thread_free(avctx);
3083 if (avctx->codec && avctx->codec->close)
3084 avctx->codec->close(avctx);
3085 avctx->internal->byte_buffer_size = 0;
3086 av_freep(&avctx->internal->byte_buffer);
3087 av_frame_free(&avctx->internal->to_free);
3088 av_frame_free(&avctx->internal->buffer_frame);
3089 av_packet_free(&avctx->internal->buffer_pkt);
3090 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
3091 av_buffer_pool_uninit(&pool->pools[i]);
3092 av_freep(&avctx->internal->pool);
3094 if (avctx->hwaccel && avctx->hwaccel->uninit)
3095 avctx->hwaccel->uninit(avctx);
3096 av_freep(&avctx->internal->hwaccel_priv_data);
3098 av_freep(&avctx->internal);
3101 for (i = 0; i < avctx->nb_coded_side_data; i++)
3102 av_freep(&avctx->coded_side_data[i].data);
3103 av_freep(&avctx->coded_side_data);
3104 avctx->nb_coded_side_data = 0;
3106 av_buffer_unref(&avctx->hw_frames_ctx);
3107 av_buffer_unref(&avctx->hw_device_ctx);
3109 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
3110 av_opt_free(avctx->priv_data);
3112 av_freep(&avctx->priv_data);
3113 if (av_codec_is_encoder(avctx->codec)) {
3114 av_freep(&avctx->extradata);
3115 #if FF_API_CODED_FRAME
3116 FF_DISABLE_DEPRECATION_WARNINGS
3117 av_frame_free(&avctx->coded_frame);
3118 FF_ENABLE_DEPRECATION_WARNINGS
3121 avctx->codec = NULL;
3122 avctx->active_thread_type = 0;
3127 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
3130 //This is for future deprecatec codec ids, its empty since
3131 //last major bump but will fill up again over time, please don't remove it
3132 default : return id;
3136 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
3138 AVCodec *p, *experimental = NULL;
3140 id= remap_deprecated_codec_id(id);
3142 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
3144 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
3151 return experimental;
3154 AVCodec *avcodec_find_encoder(enum AVCodecID id)
3156 return find_encdec(id, 1);
3159 AVCodec *avcodec_find_encoder_by_name(const char *name)
3166 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
3173 AVCodec *avcodec_find_decoder(enum AVCodecID id)
3175 return find_encdec(id, 0);
3178 AVCodec *avcodec_find_decoder_by_name(const char *name)
3185 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
3192 const char *avcodec_get_name(enum AVCodecID id)
3194 const AVCodecDescriptor *cd;
3197 if (id == AV_CODEC_ID_NONE)
3199 cd = avcodec_descriptor_get(id);
3202 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
3203 codec = avcodec_find_decoder(id);
3206 codec = avcodec_find_encoder(id);
3209 return "unknown_codec";
3212 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3214 int i, len, ret = 0;
3216 #define TAG_PRINT(x) \
3217 (((x) >= '0' && (x) <= '9') || \
3218 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3219 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3221 for (i = 0; i < 4; i++) {
3222 len = snprintf(buf, buf_size,
3223 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3225 buf_size = buf_size > len ? buf_size - len : 0;
3232 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3234 const char *codec_type;
3235 const char *codec_name;
3236 const char *profile = NULL;
3239 AVRational display_aspect_ratio;
3240 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3242 if (!buf || buf_size <= 0)
3244 codec_type = av_get_media_type_string(enc->codec_type);
3245 codec_name = avcodec_get_name(enc->codec_id);
3246 profile = avcodec_profile_name(enc->codec_id, enc->profile);
3248 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3250 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3252 if (enc->codec && strcmp(enc->codec->name, codec_name))
3253 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3256 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3257 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3258 && av_log_get_level() >= AV_LOG_VERBOSE
3260 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3261 ", %d reference frame%s",
3262 enc->refs, enc->refs > 1 ? "s" : "");
3264 if (enc->codec_tag) {
3266 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3267 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3268 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3271 switch (enc->codec_type) {
3272 case AVMEDIA_TYPE_VIDEO:
3274 char detail[256] = "(";
3276 av_strlcat(buf, separator, buf_size);
3278 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3279 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3280 av_get_pix_fmt_name(enc->pix_fmt));
3281 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3282 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
3283 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3284 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
3285 av_strlcatf(detail, sizeof(detail), "%s, ",
3286 av_color_range_name(enc->color_range));
3288 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3289 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
3290 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3291 if (enc->colorspace != (int)enc->color_primaries ||
3292 enc->colorspace != (int)enc->color_trc) {
3294 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3295 av_color_space_name(enc->colorspace),
3296 av_color_primaries_name(enc->color_primaries),
3297 av_color_transfer_name(enc->color_trc));
3299 av_strlcatf(detail, sizeof(detail), "%s, ",
3300 av_get_colorspace_name(enc->colorspace));
3303 if (enc->field_order != AV_FIELD_UNKNOWN) {
3304 const char *field_order = "progressive";
3305 if (enc->field_order == AV_FIELD_TT)
3306 field_order = "top first";
3307 else if (enc->field_order == AV_FIELD_BB)
3308 field_order = "bottom first";
3309 else if (enc->field_order == AV_FIELD_TB)
3310 field_order = "top coded first (swapped)";
3311 else if (enc->field_order == AV_FIELD_BT)
3312 field_order = "bottom coded first (swapped)";
3314 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
3317 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3318 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
3319 av_strlcatf(detail, sizeof(detail), "%s, ",
3320 av_chroma_location_name(enc->chroma_sample_location));
3322 if (strlen(detail) > 1) {
3323 detail[strlen(detail) - 2] = 0;
3324 av_strlcatf(buf, buf_size, "%s)", detail);
3329 av_strlcat(buf, new_line ? separator : ", ", buf_size);
3331 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3333 enc->width, enc->height);
3335 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3336 (enc->width != enc->coded_width ||
3337 enc->height != enc->coded_height))
3338 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3339 " (%dx%d)", enc->coded_width, enc->coded_height);
3341 if (enc->sample_aspect_ratio.num) {
3342 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3343 enc->width * (int64_t)enc->sample_aspect_ratio.num,
3344 enc->height * (int64_t)enc->sample_aspect_ratio.den,
3346 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3347 " [SAR %d:%d DAR %d:%d]",
3348 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
3349 display_aspect_ratio.num, display_aspect_ratio.den);
3351 if (av_log_get_level() >= AV_LOG_DEBUG) {
3352 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3353 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3355 enc->time_base.num / g, enc->time_base.den / g);
3359 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3360 ", q=%d-%d", enc->qmin, enc->qmax);
3362 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
3363 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3364 ", Closed Captions");
3365 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
3366 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3370 case AVMEDIA_TYPE_AUDIO:
3371 av_strlcat(buf, separator, buf_size);
3373 if (enc->sample_rate) {
3374 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3375 "%d Hz, ", enc->sample_rate);
3377 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3378 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3379 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3380 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3382 if ( enc->bits_per_raw_sample > 0
3383 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
3384 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3385 " (%d bit)", enc->bits_per_raw_sample);
3386 if (av_log_get_level() >= AV_LOG_VERBOSE) {
3387 if (enc->initial_padding)
3388 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3389 ", delay %d", enc->initial_padding);
3390 if (enc->trailing_padding)
3391 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3392 ", padding %d", enc->trailing_padding);
3395 case AVMEDIA_TYPE_DATA:
3396 if (av_log_get_level() >= AV_LOG_DEBUG) {
3397 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3399 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3401 enc->time_base.num / g, enc->time_base.den / g);
3404 case AVMEDIA_TYPE_SUBTITLE:
3406 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3407 ", %dx%d", enc->width, enc->height);
3413 if (enc->flags & AV_CODEC_FLAG_PASS1)
3414 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3416 if (enc->flags & AV_CODEC_FLAG_PASS2)
3417 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3420 bitrate = get_bit_rate(enc);
3422 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3423 ", %"PRId64" kb/s", bitrate / 1000);
3424 } else if (enc->rc_max_rate > 0) {
3425 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3426 ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000);
3430 const char *av_get_profile_name(const AVCodec *codec, int profile)
3433 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3436 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3437 if (p->profile == profile)
3443 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
3445 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
3448 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
3451 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3452 if (p->profile == profile)
3458 unsigned avcodec_version(void)
3460 // av_assert0(AV_CODEC_ID_V410==164);
3461 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3462 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3463 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3464 av_assert0(AV_CODEC_ID_SRT==94216);
3465 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3467 return LIBAVCODEC_VERSION_INT;
3470 const char *avcodec_configuration(void)
3472 return FFMPEG_CONFIGURATION;
3475 const char *avcodec_license(void)
3477 #define LICENSE_PREFIX "libavcodec license: "
3478 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3481 void avcodec_flush_buffers(AVCodecContext *avctx)
3483 avctx->internal->draining = 0;
3484 avctx->internal->draining_done = 0;
3485 av_frame_unref(avctx->internal->buffer_frame);
3486 av_packet_unref(avctx->internal->buffer_pkt);
3487 avctx->internal->buffer_pkt_valid = 0;
3489 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3490 ff_thread_flush(avctx);
3491 else if (avctx->codec->flush)
3492 avctx->codec->flush(avctx);
3494 avctx->pts_correction_last_pts =
3495 avctx->pts_correction_last_dts = INT64_MIN;
3497 if (!avctx->refcounted_frames)
3498 av_frame_unref(avctx->internal->to_free);
3501 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3504 case AV_CODEC_ID_8SVX_EXP:
3505 case AV_CODEC_ID_8SVX_FIB:
3506 case AV_CODEC_ID_ADPCM_CT:
3507 case AV_CODEC_ID_ADPCM_IMA_APC:
3508 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3509 case AV_CODEC_ID_ADPCM_IMA_OKI:
3510 case AV_CODEC_ID_ADPCM_IMA_WS:
3511 case AV_CODEC_ID_ADPCM_G722:
3512 case AV_CODEC_ID_ADPCM_YAMAHA:
3513 case AV_CODEC_ID_ADPCM_AICA:
3515 case AV_CODEC_ID_DSD_LSBF:
3516 case AV_CODEC_ID_DSD_MSBF:
3517 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3518 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3519 case AV_CODEC_ID_PCM_ALAW:
3520 case AV_CODEC_ID_PCM_MULAW:
3521 case AV_CODEC_ID_PCM_S8:
3522 case AV_CODEC_ID_PCM_S8_PLANAR:
3523 case AV_CODEC_ID_PCM_U8:
3524 case AV_CODEC_ID_PCM_ZORK:
3525 case AV_CODEC_ID_SDX2_DPCM:
3527 case AV_CODEC_ID_PCM_S16BE:
3528 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3529 case AV_CODEC_ID_PCM_S16LE:
3530 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3531 case AV_CODEC_ID_PCM_U16BE:
3532 case AV_CODEC_ID_PCM_U16LE:
3534 case AV_CODEC_ID_PCM_S24DAUD:
3535 case AV_CODEC_ID_PCM_S24BE:
3536 case AV_CODEC_ID_PCM_S24LE:
3537 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3538 case AV_CODEC_ID_PCM_U24BE:
3539 case AV_CODEC_ID_PCM_U24LE:
3541 case AV_CODEC_ID_PCM_S32BE:
3542 case AV_CODEC_ID_PCM_S32LE:
3543 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3544 case AV_CODEC_ID_PCM_U32BE:
3545 case AV_CODEC_ID_PCM_U32LE:
3546 case AV_CODEC_ID_PCM_F32BE:
3547 case AV_CODEC_ID_PCM_F32LE:
3548 case AV_CODEC_ID_PCM_F24LE:
3549 case AV_CODEC_ID_PCM_F16LE:
3551 case AV_CODEC_ID_PCM_F64BE:
3552 case AV_CODEC_ID_PCM_F64LE:
3553 case AV_CODEC_ID_PCM_S64BE:
3554 case AV_CODEC_ID_PCM_S64LE:
3561 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3563 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3564 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3565 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3566 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3567 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3568 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3569 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3570 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3571 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3572 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
3573 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3574 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3576 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3577 return AV_CODEC_ID_NONE;
3578 if (be < 0 || be > 1)
3580 return map[fmt][be];
3583 int av_get_bits_per_sample(enum AVCodecID codec_id)
3586 case AV_CODEC_ID_ADPCM_SBPRO_2:
3588 case AV_CODEC_ID_ADPCM_SBPRO_3:
3590 case AV_CODEC_ID_ADPCM_SBPRO_4:
3591 case AV_CODEC_ID_ADPCM_IMA_WAV:
3592 case AV_CODEC_ID_ADPCM_IMA_QT:
3593 case AV_CODEC_ID_ADPCM_SWF:
3594 case AV_CODEC_ID_ADPCM_MS:
3597 return av_get_exact_bits_per_sample(codec_id);
3601 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
3602 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
3603 uint8_t * extradata, int frame_size, int frame_bytes)
3605 int bps = av_get_exact_bits_per_sample(id);
3606 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
3608 /* codecs with an exact constant bits per sample */
3609 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3610 return (frame_bytes * 8LL) / (bps * ch);
3611 bps = bits_per_coded_sample;
3613 /* codecs with a fixed packet duration */
3615 case AV_CODEC_ID_ADPCM_ADX: return 32;
3616 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3617 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3618 case AV_CODEC_ID_AMR_NB:
3619 case AV_CODEC_ID_EVRC:
3620 case AV_CODEC_ID_GSM:
3621 case AV_CODEC_ID_QCELP:
3622 case AV_CODEC_ID_RA_288: return 160;
3623 case AV_CODEC_ID_AMR_WB:
3624 case AV_CODEC_ID_GSM_MS: return 320;
3625 case AV_CODEC_ID_MP1: return 384;
3626 case AV_CODEC_ID_ATRAC1: return 512;
3627 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
3628 case AV_CODEC_ID_ATRAC3P: return 2048;
3629 case AV_CODEC_ID_MP2:
3630 case AV_CODEC_ID_MUSEPACK7: return 1152;
3631 case AV_CODEC_ID_AC3: return 1536;
3635 /* calc from sample rate */
3636 if (id == AV_CODEC_ID_TTA)
3637 return 256 * sr / 245;
3638 else if (id == AV_CODEC_ID_DST)
3639 return 588 * sr / 44100;
3642 /* calc from sample rate and channels */
3643 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3644 return (480 << (sr / 22050)) / ch;
3649 /* calc from block_align */
3650 if (id == AV_CODEC_ID_SIPR) {
3652 case 20: return 160;
3653 case 19: return 144;
3654 case 29: return 288;
3655 case 37: return 480;
3657 } else if (id == AV_CODEC_ID_ILBC) {
3659 case 38: return 160;
3660 case 50: return 240;
3665 if (frame_bytes > 0) {
3666 /* calc from frame_bytes only */
3667 if (id == AV_CODEC_ID_TRUESPEECH)
3668 return 240 * (frame_bytes / 32);
3669 if (id == AV_CODEC_ID_NELLYMOSER)
3670 return 256 * (frame_bytes / 64);
3671 if (id == AV_CODEC_ID_RA_144)
3672 return 160 * (frame_bytes / 20);
3673 if (id == AV_CODEC_ID_G723_1)
3674 return 240 * (frame_bytes / 24);
3677 /* calc from frame_bytes and bits_per_coded_sample */
3678 if (id == AV_CODEC_ID_ADPCM_G726)
3679 return frame_bytes * 8 / bps;
3682 if (ch > 0 && ch < INT_MAX/16) {
3683 /* calc from frame_bytes and channels */
3685 case AV_CODEC_ID_ADPCM_AFC:
3686 return frame_bytes / (9 * ch) * 16;
3687 case AV_CODEC_ID_ADPCM_PSX:
3688 case AV_CODEC_ID_ADPCM_DTK:
3689 return frame_bytes / (16 * ch) * 28;
3690 case AV_CODEC_ID_ADPCM_4XM:
3691 case AV_CODEC_ID_ADPCM_IMA_DAT4:
3692 case AV_CODEC_ID_ADPCM_IMA_ISS:
3693 return (frame_bytes - 4 * ch) * 2 / ch;
3694 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3695 return (frame_bytes - 4) * 2 / ch;
3696 case AV_CODEC_ID_ADPCM_IMA_AMV:
3697 return (frame_bytes - 8) * 2 / ch;
3698 case AV_CODEC_ID_ADPCM_THP:
3699 case AV_CODEC_ID_ADPCM_THP_LE:
3701 return frame_bytes * 14 / (8 * ch);
3703 case AV_CODEC_ID_ADPCM_XA:
3704 return (frame_bytes / 128) * 224 / ch;
3705 case AV_CODEC_ID_INTERPLAY_DPCM:
3706 return (frame_bytes - 6 - ch) / ch;
3707 case AV_CODEC_ID_ROQ_DPCM:
3708 return (frame_bytes - 8) / ch;
3709 case AV_CODEC_ID_XAN_DPCM:
3710 return (frame_bytes - 2 * ch) / ch;
3711 case AV_CODEC_ID_MACE3:
3712 return 3 * frame_bytes / ch;
3713 case AV_CODEC_ID_MACE6:
3714 return 6 * frame_bytes / ch;
3715 case AV_CODEC_ID_PCM_LXF:
3716 return 2 * (frame_bytes / (5 * ch));
3717 case AV_CODEC_ID_IAC:
3718 case AV_CODEC_ID_IMC:
3719 return 4 * frame_bytes / ch;
3723 /* calc from frame_bytes, channels, and codec_tag */
3724 if (id == AV_CODEC_ID_SOL_DPCM) {
3726 return frame_bytes / ch;
3728 return frame_bytes * 2 / ch;
3733 /* calc from frame_bytes, channels, and block_align */
3734 int blocks = frame_bytes / ba;
3736 case AV_CODEC_ID_ADPCM_IMA_WAV:
3737 if (bps < 2 || bps > 5)
3739 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3740 case AV_CODEC_ID_ADPCM_IMA_DK3:
3741 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3742 case AV_CODEC_ID_ADPCM_IMA_DK4:
3743 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3744 case AV_CODEC_ID_ADPCM_IMA_RAD:
3745 return blocks * ((ba - 4 * ch) * 2 / ch);
3746 case AV_CODEC_ID_ADPCM_MS:
3747 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3748 case AV_CODEC_ID_ADPCM_MTAF:
3749 return blocks * (ba - 16) * 2 / ch;
3754 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3756 case AV_CODEC_ID_PCM_DVD:
3759 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3760 case AV_CODEC_ID_PCM_BLURAY:
3763 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3764 case AV_CODEC_ID_S302M:
3765 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3771 /* Fall back on using frame_size */
3772 if (frame_size > 1 && frame_bytes)
3775 //For WMA we currently have no other means to calculate duration thus we
3776 //do it here by assuming CBR, which is true for all known cases.
3777 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
3778 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
3779 return (frame_bytes * 8LL * sr) / bitrate;
3785 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3787 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
3788 avctx->channels, avctx->block_align,
3789 avctx->codec_tag, avctx->bits_per_coded_sample,
3790 avctx->bit_rate, avctx->extradata, avctx->frame_size,
3794 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
3796 return get_audio_frame_duration(par->codec_id, par->sample_rate,
3797 par->channels, par->block_align,
3798 par->codec_tag, par->bits_per_coded_sample,
3799 par->bit_rate, par->extradata, par->frame_size,
3804 int ff_thread_init(AVCodecContext *s)
3811 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3825 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3828 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3832 #if FF_API_MISSING_SAMPLE
3833 FF_DISABLE_DEPRECATION_WARNINGS
3834 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3836 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3837 "version to the newest one from Git. If the problem still "
3838 "occurs, it means that your file has a feature which has not "
3839 "been implemented.\n", feature);
3841 av_log_ask_for_sample(avc, NULL);
3844 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3846 va_list argument_list;
3848 va_start(argument_list, msg);
3851 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3852 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3853 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3854 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3856 va_end(argument_list);
3858 FF_ENABLE_DEPRECATION_WARNINGS
3859 #endif /* FF_API_MISSING_SAMPLE */
3861 static AVHWAccel *first_hwaccel = NULL;
3862 static AVHWAccel **last_hwaccel = &first_hwaccel;
3864 void av_register_hwaccel(AVHWAccel *hwaccel)
3866 AVHWAccel **p = last_hwaccel;
3867 hwaccel->next = NULL;
3868 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3870 last_hwaccel = &hwaccel->next;
3873 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3875 return hwaccel ? hwaccel->next : first_hwaccel;
3878 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3881 // There is no good way to rollback a failure to destroy the
3882 // mutex, so we ignore failures.
3883 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3884 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3887 avformat_mutex = NULL;
3891 void *new_codec_mutex = NULL;
3892 void *new_avformat_mutex = NULL;
3894 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3895 return err > 0 ? AVERROR_UNKNOWN : err;
3897 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3898 // Ignore failures to destroy the newly created mutex.
3899 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3900 return err > 0 ? AVERROR_UNKNOWN : err;
3903 codec_mutex = new_codec_mutex;
3904 avformat_mutex = new_avformat_mutex;
3910 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3912 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3916 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3920 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) {
3921 av_log(log_ctx, AV_LOG_ERROR,
3922 "Insufficient thread locking. At least %d threads are "
3923 "calling avcodec_open2() at the same time right now.\n",
3924 entangled_thread_counter);
3926 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3927 ff_avcodec_locked = 1;
3928 ff_unlock_avcodec(codec);
3929 return AVERROR(EINVAL);
3931 av_assert0(!ff_avcodec_locked);
3932 ff_avcodec_locked = 1;
3936 int ff_unlock_avcodec(const AVCodec *codec)
3938 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3941 av_assert0(ff_avcodec_locked);
3942 ff_avcodec_locked = 0;
3943 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3945 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3952 int avpriv_lock_avformat(void)
3955 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3961 int avpriv_unlock_avformat(void)
3964 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3970 unsigned int avpriv_toupper4(unsigned int x)
3972 return av_toupper(x & 0xFF) +
3973 (av_toupper((x >> 8) & 0xFF) << 8) +
3974 (av_toupper((x >> 16) & 0xFF) << 16) +
3975 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3978 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3982 dst->owner = src->owner;
3984 ret = av_frame_ref(dst->f, src->f);
3988 av_assert0(!dst->progress);
3990 if (src->progress &&
3991 !(dst->progress = av_buffer_ref(src->progress))) {
3992 ff_thread_release_buffer(dst->owner, dst);
3993 return AVERROR(ENOMEM);
4001 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
4003 return ff_get_format(avctx, fmt);
4006 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
4009 return ff_get_buffer(avctx, f->f, flags);
4012 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
4015 av_frame_unref(f->f);
4018 void ff_thread_finish_setup(AVCodecContext *avctx)
4022 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
4026 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
4030 int ff_thread_can_start_frame(AVCodecContext *avctx)
4035 int ff_alloc_entries(AVCodecContext *avctx, int count)
4040 void ff_reset_entries(AVCodecContext *avctx)
4044 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
4048 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
4054 int avcodec_is_open(AVCodecContext *s)
4056 return !!s->internal;
4059 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
4064 ret = av_bprint_finalize(buf, &str);
4067 if (!av_bprint_is_complete(buf)) {
4069 return AVERROR(ENOMEM);
4072 avctx->extradata = str;
4073 /* Note: the string is NUL terminated (so extradata can be read as a
4074 * string), but the ending character is not accounted in the size (in
4075 * binary formats you are likely not supposed to mux that character). When
4076 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
4078 avctx->extradata_size = buf->len;
4082 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
4084 uint32_t *av_restrict state)
4088 av_assert0(p <= end);
4092 for (i = 0; i < 3; i++) {
4093 uint32_t tmp = *state << 8;
4094 *state = tmp + *(p++);
4095 if (tmp == 0x100 || p == end)
4100 if (p[-1] > 1 ) p += 3;
4101 else if (p[-2] ) p += 2;
4102 else if (p[-3]|(p[-1]-1)) p++;
4109 p = FFMIN(p, end) - 4;
4110 *state = AV_RB32(p);
4115 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
4117 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
4122 *size = sizeof(*props);
4124 props->vbv_delay = UINT64_MAX;
4129 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
4131 AVPacketSideData *tmp;
4132 AVCPBProperties *props;
4135 props = av_cpb_properties_alloc(&size);
4139 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
4145 avctx->coded_side_data = tmp;
4146 avctx->nb_coded_side_data++;
4148 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
4149 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
4150 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
4155 static void codec_parameters_reset(AVCodecParameters *par)
4157 av_freep(&par->extradata);
4159 memset(par, 0, sizeof(*par));
4161 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
4162 par->codec_id = AV_CODEC_ID_NONE;
4164 par->field_order = AV_FIELD_UNKNOWN;
4165 par->color_range = AVCOL_RANGE_UNSPECIFIED;
4166 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
4167 par->color_trc = AVCOL_TRC_UNSPECIFIED;
4168 par->color_space = AVCOL_SPC_UNSPECIFIED;
4169 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
4170 par->sample_aspect_ratio = (AVRational){ 0, 1 };
4171 par->profile = FF_PROFILE_UNKNOWN;
4172 par->level = FF_LEVEL_UNKNOWN;
4175 AVCodecParameters *avcodec_parameters_alloc(void)
4177 AVCodecParameters *par = av_mallocz(sizeof(*par));
4181 codec_parameters_reset(par);
4185 void avcodec_parameters_free(AVCodecParameters **ppar)
4187 AVCodecParameters *par = *ppar;
4191 codec_parameters_reset(par);
4196 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
4198 codec_parameters_reset(dst);
4199 memcpy(dst, src, sizeof(*dst));
4201 dst->extradata = NULL;
4202 dst->extradata_size = 0;
4203 if (src->extradata) {
4204 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
4205 if (!dst->extradata)
4206 return AVERROR(ENOMEM);
4207 memcpy(dst->extradata, src->extradata, src->extradata_size);
4208 dst->extradata_size = src->extradata_size;
4214 int avcodec_parameters_from_context(AVCodecParameters *par,
4215 const AVCodecContext *codec)
4217 codec_parameters_reset(par);
4219 par->codec_type = codec->codec_type;
4220 par->codec_id = codec->codec_id;
4221 par->codec_tag = codec->codec_tag;
4223 par->bit_rate = codec->bit_rate;
4224 par->bits_per_coded_sample = codec->bits_per_coded_sample;
4225 par->bits_per_raw_sample = codec->bits_per_raw_sample;
4226 par->profile = codec->profile;
4227 par->level = codec->level;
4229 switch (par->codec_type) {
4230 case AVMEDIA_TYPE_VIDEO:
4231 par->format = codec->pix_fmt;
4232 par->width = codec->width;
4233 par->height = codec->height;
4234 par->field_order = codec->field_order;
4235 par->color_range = codec->color_range;
4236 par->color_primaries = codec->color_primaries;
4237 par->color_trc = codec->color_trc;
4238 par->color_space = codec->colorspace;
4239 par->chroma_location = codec->chroma_sample_location;
4240 par->sample_aspect_ratio = codec->sample_aspect_ratio;
4241 par->video_delay = codec->has_b_frames;
4243 case AVMEDIA_TYPE_AUDIO:
4244 par->format = codec->sample_fmt;
4245 par->channel_layout = codec->channel_layout;
4246 par->channels = codec->channels;
4247 par->sample_rate = codec->sample_rate;
4248 par->block_align = codec->block_align;
4249 par->frame_size = codec->frame_size;
4250 par->initial_padding = codec->initial_padding;
4251 par->trailing_padding = codec->trailing_padding;
4252 par->seek_preroll = codec->seek_preroll;
4254 case AVMEDIA_TYPE_SUBTITLE:
4255 par->width = codec->width;
4256 par->height = codec->height;
4260 if (codec->extradata) {
4261 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
4262 if (!par->extradata)
4263 return AVERROR(ENOMEM);
4264 memcpy(par->extradata, codec->extradata, codec->extradata_size);
4265 par->extradata_size = codec->extradata_size;
4271 int avcodec_parameters_to_context(AVCodecContext *codec,
4272 const AVCodecParameters *par)
4274 codec->codec_type = par->codec_type;
4275 codec->codec_id = par->codec_id;
4276 codec->codec_tag = par->codec_tag;
4278 codec->bit_rate = par->bit_rate;
4279 codec->bits_per_coded_sample = par->bits_per_coded_sample;
4280 codec->bits_per_raw_sample = par->bits_per_raw_sample;
4281 codec->profile = par->profile;
4282 codec->level = par->level;
4284 switch (par->codec_type) {
4285 case AVMEDIA_TYPE_VIDEO:
4286 codec->pix_fmt = par->format;
4287 codec->width = par->width;
4288 codec->height = par->height;
4289 codec->field_order = par->field_order;
4290 codec->color_range = par->color_range;
4291 codec->color_primaries = par->color_primaries;
4292 codec->color_trc = par->color_trc;
4293 codec->colorspace = par->color_space;
4294 codec->chroma_sample_location = par->chroma_location;
4295 codec->sample_aspect_ratio = par->sample_aspect_ratio;
4296 codec->has_b_frames = par->video_delay;
4298 case AVMEDIA_TYPE_AUDIO:
4299 codec->sample_fmt = par->format;
4300 codec->channel_layout = par->channel_layout;
4301 codec->channels = par->channels;
4302 codec->sample_rate = par->sample_rate;
4303 codec->block_align = par->block_align;
4304 codec->frame_size = par->frame_size;
4306 codec->initial_padding = par->initial_padding;
4307 codec->trailing_padding = par->trailing_padding;
4308 codec->seek_preroll = par->seek_preroll;
4310 case AVMEDIA_TYPE_SUBTITLE:
4311 codec->width = par->width;
4312 codec->height = par->height;
4316 if (par->extradata) {
4317 av_freep(&codec->extradata);
4318 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
4319 if (!codec->extradata)
4320 return AVERROR(ENOMEM);
4321 memcpy(codec->extradata, par->extradata, par->extradata_size);
4322 codec->extradata_size = par->extradata_size;
4328 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
4329 void **data, size_t *sei_size)
4331 AVFrameSideData *side_data = NULL;
4335 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
4342 *sei_size = side_data->size + 11;
4343 *data = av_mallocz(*sei_size + prefix_len);
4345 return AVERROR(ENOMEM);
4346 sei_data = (uint8_t*)*data + prefix_len;
4354 * 'GA94' is standard in North America for ATSC, but hard coding
4355 * this style may not be the right thing to do -- other formats
4356 * do exist. This information is not available in the side_data
4357 * so we are going with this right now.
4359 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
4361 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
4364 memcpy(sei_data + 10, side_data->data, side_data->size);
4366 sei_data[side_data->size+10] = 255;
4371 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
4373 AVRational framerate = avctx->framerate;
4374 int bits_per_coded_sample = avctx->bits_per_coded_sample;
4377 if (!(framerate.num && framerate.den))
4378 framerate = av_inv_q(avctx->time_base);
4379 if (!(framerate.num && framerate.den))
4382 if (!bits_per_coded_sample) {
4383 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
4384 bits_per_coded_sample = av_get_bits_per_pixel(desc);
4386 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
4387 framerate.num / framerate.den;