3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "libavutil/atomic.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/bprint.h"
34 #include "libavutil/channel_layout.h"
35 #include "libavutil/crc.h"
36 #include "libavutil/frame.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/pixdesc.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/dict.h"
44 #include "libavutil/opt.h"
46 #include "mpegvideo.h"
48 #include "frame_thread_encoder.h"
51 #include "bytestream.h"
64 #include "compat/w32pthreads.h"
66 #include "compat/os2threads.h"
69 #include "libavutil/ffversion.h"
70 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
72 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
73 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
75 void * volatile * mutex = arg;
83 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
85 return AVERROR(ENOMEM);
86 if ((err = pthread_mutex_init(tmp, NULL))) {
90 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
91 pthread_mutex_destroy(tmp);
96 if ((err = pthread_mutex_lock(*mutex)))
100 case AV_LOCK_RELEASE:
101 if ((err = pthread_mutex_unlock(*mutex)))
105 case AV_LOCK_DESTROY:
107 pthread_mutex_destroy(*mutex);
109 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
114 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
116 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
120 volatile int ff_avcodec_locked;
121 static int volatile entangled_thread_counter = 0;
122 static void *codec_mutex;
123 static void *avformat_mutex;
125 static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
128 if (min_size <= *size && *p)
130 min_size = FFMAX(17 * min_size / 16 + 32, min_size);
132 *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
139 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
142 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
147 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
148 memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
151 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
154 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
159 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
160 memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
163 /* encoder management */
164 static AVCodec *first_avcodec = NULL;
165 static AVCodec **last_avcodec = &first_avcodec;
167 AVCodec *av_codec_next(const AVCodec *c)
172 return first_avcodec;
175 static av_cold void avcodec_init(void)
177 static int initialized = 0;
179 if (initialized != 0)
184 ff_me_cmp_init_static();
187 int av_codec_is_encoder(const AVCodec *codec)
189 return codec && (codec->encode_sub || codec->encode2);
192 int av_codec_is_decoder(const AVCodec *codec)
194 return codec && codec->decode;
197 av_cold void avcodec_register(AVCodec *codec)
204 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
206 last_avcodec = &codec->next;
208 if (codec->init_static_data)
209 codec->init_static_data(codec);
213 unsigned avcodec_get_edge_width(void)
219 #if FF_API_SET_DIMENSIONS
220 void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
222 int ret = ff_set_dimensions(s, width, height);
224 av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
229 int ff_set_dimensions(AVCodecContext *s, int width, int height)
231 int ret = av_image_check_size(width, height, 0, s);
236 s->coded_width = width;
237 s->coded_height = height;
238 s->width = FF_CEIL_RSHIFT(width, s->lowres);
239 s->height = FF_CEIL_RSHIFT(height, s->lowres);
244 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
246 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
249 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
251 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
254 avctx->sample_aspect_ratio = sar;
259 int ff_side_data_update_matrix_encoding(AVFrame *frame,
260 enum AVMatrixEncoding matrix_encoding)
262 AVFrameSideData *side_data;
263 enum AVMatrixEncoding *data;
265 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
267 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
268 sizeof(enum AVMatrixEncoding));
271 return AVERROR(ENOMEM);
273 data = (enum AVMatrixEncoding*)side_data->data;
274 *data = matrix_encoding;
279 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
280 int linesize_align[AV_NUM_DATA_POINTERS])
285 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
288 w_align = 1 << desc->log2_chroma_w;
289 h_align = 1 << desc->log2_chroma_h;
292 switch (s->pix_fmt) {
293 case AV_PIX_FMT_YUV420P:
294 case AV_PIX_FMT_YUYV422:
295 case AV_PIX_FMT_YVYU422:
296 case AV_PIX_FMT_UYVY422:
297 case AV_PIX_FMT_YUV422P:
298 case AV_PIX_FMT_YUV440P:
299 case AV_PIX_FMT_YUV444P:
300 case AV_PIX_FMT_GBRP:
301 case AV_PIX_FMT_GBRAP:
302 case AV_PIX_FMT_GRAY8:
303 case AV_PIX_FMT_GRAY16BE:
304 case AV_PIX_FMT_GRAY16LE:
305 case AV_PIX_FMT_YUVJ420P:
306 case AV_PIX_FMT_YUVJ422P:
307 case AV_PIX_FMT_YUVJ440P:
308 case AV_PIX_FMT_YUVJ444P:
309 case AV_PIX_FMT_YUVA420P:
310 case AV_PIX_FMT_YUVA422P:
311 case AV_PIX_FMT_YUVA444P:
312 case AV_PIX_FMT_YUV420P9LE:
313 case AV_PIX_FMT_YUV420P9BE:
314 case AV_PIX_FMT_YUV420P10LE:
315 case AV_PIX_FMT_YUV420P10BE:
316 case AV_PIX_FMT_YUV420P12LE:
317 case AV_PIX_FMT_YUV420P12BE:
318 case AV_PIX_FMT_YUV420P14LE:
319 case AV_PIX_FMT_YUV420P14BE:
320 case AV_PIX_FMT_YUV420P16LE:
321 case AV_PIX_FMT_YUV420P16BE:
322 case AV_PIX_FMT_YUVA420P9LE:
323 case AV_PIX_FMT_YUVA420P9BE:
324 case AV_PIX_FMT_YUVA420P10LE:
325 case AV_PIX_FMT_YUVA420P10BE:
326 case AV_PIX_FMT_YUVA420P16LE:
327 case AV_PIX_FMT_YUVA420P16BE:
328 case AV_PIX_FMT_YUV422P9LE:
329 case AV_PIX_FMT_YUV422P9BE:
330 case AV_PIX_FMT_YUV422P10LE:
331 case AV_PIX_FMT_YUV422P10BE:
332 case AV_PIX_FMT_YUV422P12LE:
333 case AV_PIX_FMT_YUV422P12BE:
334 case AV_PIX_FMT_YUV422P14LE:
335 case AV_PIX_FMT_YUV422P14BE:
336 case AV_PIX_FMT_YUV422P16LE:
337 case AV_PIX_FMT_YUV422P16BE:
338 case AV_PIX_FMT_YUVA422P9LE:
339 case AV_PIX_FMT_YUVA422P9BE:
340 case AV_PIX_FMT_YUVA422P10LE:
341 case AV_PIX_FMT_YUVA422P10BE:
342 case AV_PIX_FMT_YUVA422P16LE:
343 case AV_PIX_FMT_YUVA422P16BE:
344 case AV_PIX_FMT_YUV440P10LE:
345 case AV_PIX_FMT_YUV440P10BE:
346 case AV_PIX_FMT_YUV440P12LE:
347 case AV_PIX_FMT_YUV440P12BE:
348 case AV_PIX_FMT_YUV444P9LE:
349 case AV_PIX_FMT_YUV444P9BE:
350 case AV_PIX_FMT_YUV444P10LE:
351 case AV_PIX_FMT_YUV444P10BE:
352 case AV_PIX_FMT_YUV444P12LE:
353 case AV_PIX_FMT_YUV444P12BE:
354 case AV_PIX_FMT_YUV444P14LE:
355 case AV_PIX_FMT_YUV444P14BE:
356 case AV_PIX_FMT_YUV444P16LE:
357 case AV_PIX_FMT_YUV444P16BE:
358 case AV_PIX_FMT_YUVA444P9LE:
359 case AV_PIX_FMT_YUVA444P9BE:
360 case AV_PIX_FMT_YUVA444P10LE:
361 case AV_PIX_FMT_YUVA444P10BE:
362 case AV_PIX_FMT_YUVA444P16LE:
363 case AV_PIX_FMT_YUVA444P16BE:
364 case AV_PIX_FMT_GBRP9LE:
365 case AV_PIX_FMT_GBRP9BE:
366 case AV_PIX_FMT_GBRP10LE:
367 case AV_PIX_FMT_GBRP10BE:
368 case AV_PIX_FMT_GBRP12LE:
369 case AV_PIX_FMT_GBRP12BE:
370 case AV_PIX_FMT_GBRP14LE:
371 case AV_PIX_FMT_GBRP14BE:
372 case AV_PIX_FMT_GBRP16LE:
373 case AV_PIX_FMT_GBRP16BE:
374 w_align = 16; //FIXME assume 16 pixel per macroblock
375 h_align = 16 * 2; // interlaced needs 2 macroblocks height
377 case AV_PIX_FMT_YUV411P:
378 case AV_PIX_FMT_YUVJ411P:
379 case AV_PIX_FMT_UYYVYY411:
383 case AV_PIX_FMT_YUV410P:
384 if (s->codec_id == AV_CODEC_ID_SVQ1) {
389 case AV_PIX_FMT_RGB555:
390 if (s->codec_id == AV_CODEC_ID_RPZA) {
395 case AV_PIX_FMT_PAL8:
396 case AV_PIX_FMT_BGR8:
397 case AV_PIX_FMT_RGB8:
398 if (s->codec_id == AV_CODEC_ID_SMC ||
399 s->codec_id == AV_CODEC_ID_CINEPAK) {
403 if (s->codec_id == AV_CODEC_ID_JV) {
408 case AV_PIX_FMT_BGR24:
409 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
410 (s->codec_id == AV_CODEC_ID_ZLIB)) {
415 case AV_PIX_FMT_RGB24:
416 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
425 if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) {
426 w_align = FFMAX(w_align, 8);
429 *width = FFALIGN(*width, w_align);
430 *height = FFALIGN(*height, h_align);
431 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
432 // some of the optimized chroma MC reads one line too much
433 // which is also done in mpeg decoders with lowres > 0
436 // H.264 uses edge emulation for out of frame motion vectors, for this
437 // it requires a temporary area large enough to hold a 21x21 block,
438 // increasing witdth ensure that the temporary area is large enough,
439 // the next rounded up width is 32
440 *width = FFMAX(*width, 32);
443 for (i = 0; i < 4; i++)
444 linesize_align[i] = STRIDE_ALIGN;
447 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
449 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
450 int chroma_shift = desc->log2_chroma_w;
451 int linesize_align[AV_NUM_DATA_POINTERS];
454 avcodec_align_dimensions2(s, width, height, linesize_align);
455 align = FFMAX(linesize_align[0], linesize_align[3]);
456 linesize_align[1] <<= chroma_shift;
457 linesize_align[2] <<= chroma_shift;
458 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
459 *width = FFALIGN(*width, align);
462 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
464 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
465 return AVERROR(EINVAL);
468 *xpos = (pos&1) * 128;
469 *ypos = ((pos>>1)^(pos<4)) * 128;
474 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
478 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
479 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
482 return AVCHROMA_LOC_UNSPECIFIED;
485 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
486 enum AVSampleFormat sample_fmt, const uint8_t *buf,
487 int buf_size, int align)
489 int ch, planar, needed_size, ret = 0;
491 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
492 frame->nb_samples, sample_fmt,
494 if (buf_size < needed_size)
495 return AVERROR(EINVAL);
497 planar = av_sample_fmt_is_planar(sample_fmt);
498 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
499 if (!(frame->extended_data = av_mallocz_array(nb_channels,
500 sizeof(*frame->extended_data))))
501 return AVERROR(ENOMEM);
503 frame->extended_data = frame->data;
506 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
507 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
508 sample_fmt, align)) < 0) {
509 if (frame->extended_data != frame->data)
510 av_freep(&frame->extended_data);
513 if (frame->extended_data != frame->data) {
514 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
515 frame->data[ch] = frame->extended_data[ch];
521 static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
523 FramePool *pool = avctx->internal->pool;
526 switch (avctx->codec_type) {
527 case AVMEDIA_TYPE_VIDEO: {
530 int w = frame->width;
531 int h = frame->height;
532 int tmpsize, unaligned;
534 if (pool->format == frame->format &&
535 pool->width == frame->width && pool->height == frame->height)
538 avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
541 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
542 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
543 av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w);
544 // increase alignment of w for next try (rhs gives the lowest bit set in w)
548 for (i = 0; i < 4; i++)
549 unaligned |= picture.linesize[i] % pool->stride_align[i];
552 tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h,
553 NULL, picture.linesize);
557 for (i = 0; i < 3 && picture.data[i + 1]; i++)
558 size[i] = picture.data[i + 1] - picture.data[i];
559 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
561 for (i = 0; i < 4; i++) {
562 av_buffer_pool_uninit(&pool->pools[i]);
563 pool->linesize[i] = picture.linesize[i];
565 pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
566 CONFIG_MEMORY_POISONING ?
569 if (!pool->pools[i]) {
570 ret = AVERROR(ENOMEM);
575 pool->format = frame->format;
576 pool->width = frame->width;
577 pool->height = frame->height;
581 case AVMEDIA_TYPE_AUDIO: {
582 int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
583 int planar = av_sample_fmt_is_planar(frame->format);
584 int planes = planar ? ch : 1;
586 if (pool->format == frame->format && pool->planes == planes &&
587 pool->channels == ch && frame->nb_samples == pool->samples)
590 av_buffer_pool_uninit(&pool->pools[0]);
591 ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
592 frame->nb_samples, frame->format, 0);
596 pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
597 if (!pool->pools[0]) {
598 ret = AVERROR(ENOMEM);
602 pool->format = frame->format;
603 pool->planes = planes;
605 pool->samples = frame->nb_samples;
608 default: av_assert0(0);
612 for (i = 0; i < 4; i++)
613 av_buffer_pool_uninit(&pool->pools[i]);
615 pool->planes = pool->channels = pool->samples = 0;
616 pool->width = pool->height = 0;
620 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
622 FramePool *pool = avctx->internal->pool;
623 int planes = pool->planes;
626 frame->linesize[0] = pool->linesize[0];
628 if (planes > AV_NUM_DATA_POINTERS) {
629 frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
630 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
631 frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
632 sizeof(*frame->extended_buf));
633 if (!frame->extended_data || !frame->extended_buf) {
634 av_freep(&frame->extended_data);
635 av_freep(&frame->extended_buf);
636 return AVERROR(ENOMEM);
639 frame->extended_data = frame->data;
640 av_assert0(frame->nb_extended_buf == 0);
643 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
644 frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
647 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
649 for (i = 0; i < frame->nb_extended_buf; i++) {
650 frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
651 if (!frame->extended_buf[i])
653 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
656 if (avctx->debug & FF_DEBUG_BUFFERS)
657 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
661 av_frame_unref(frame);
662 return AVERROR(ENOMEM);
665 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
667 FramePool *pool = s->internal->pool;
671 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
675 memset(pic->data, 0, sizeof(pic->data));
676 pic->extended_data = pic->data;
678 for (i = 0; i < 4 && pool->pools[i]; i++) {
679 pic->linesize[i] = pool->linesize[i];
681 pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
685 pic->data[i] = pic->buf[i]->data;
687 for (; i < AV_NUM_DATA_POINTERS; i++) {
689 pic->linesize[i] = 0;
691 if (pic->data[1] && !pic->data[2])
692 avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt);
694 if (s->debug & FF_DEBUG_BUFFERS)
695 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
700 return AVERROR(ENOMEM);
703 void avpriv_color_frame(AVFrame *frame, const int c[4])
705 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
708 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
710 for (p = 0; p<desc->nb_components; p++) {
711 uint8_t *dst = frame->data[p];
712 int is_chroma = p == 1 || p == 2;
713 int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
714 int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
715 for (y = 0; y < height; y++) {
716 if (desc->comp[0].depth_minus1 >= 8) {
717 for (x = 0; x<bytes; x++)
718 ((uint16_t*)dst)[x] = c[p];
720 memset(dst, c[p], bytes);
721 dst += frame->linesize[p];
726 int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
730 if ((ret = update_frame_pool(avctx, frame)) < 0)
733 #if FF_API_GET_BUFFER
734 FF_DISABLE_DEPRECATION_WARNINGS
735 frame->type = FF_BUFFER_TYPE_INTERNAL;
736 FF_ENABLE_DEPRECATION_WARNINGS
739 switch (avctx->codec_type) {
740 case AVMEDIA_TYPE_VIDEO:
741 return video_get_buffer(avctx, frame);
742 case AVMEDIA_TYPE_AUDIO:
743 return audio_get_buffer(avctx, frame);
749 static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame)
752 const uint8_t *side_metadata;
754 AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
756 side_metadata = av_packet_get_side_data(avpkt,
757 AV_PKT_DATA_STRINGS_METADATA, &size);
758 return av_packet_unpack_dictionary(side_metadata, size, frame_md);
761 int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
763 AVPacket *pkt = avctx->internal->pkt;
765 static const struct {
766 enum AVPacketSideDataType packet;
767 enum AVFrameSideDataType frame;
769 { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
770 { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
771 { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
772 { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
776 frame->pkt_pts = pkt->pts;
777 av_frame_set_pkt_pos (frame, pkt->pos);
778 av_frame_set_pkt_duration(frame, pkt->duration);
779 av_frame_set_pkt_size (frame, pkt->size);
781 for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
783 uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
785 AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
789 return AVERROR(ENOMEM);
791 memcpy(frame_sd->data, packet_sd, size);
794 add_metadata_from_side_data(pkt, frame);
796 frame->pkt_pts = AV_NOPTS_VALUE;
797 av_frame_set_pkt_pos (frame, -1);
798 av_frame_set_pkt_duration(frame, 0);
799 av_frame_set_pkt_size (frame, -1);
801 frame->reordered_opaque = avctx->reordered_opaque;
803 if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
804 frame->color_primaries = avctx->color_primaries;
805 if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
806 frame->color_trc = avctx->color_trc;
807 if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
808 av_frame_set_colorspace(frame, avctx->colorspace);
809 if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
810 av_frame_set_color_range(frame, avctx->color_range);
811 if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
812 frame->chroma_location = avctx->chroma_sample_location;
814 switch (avctx->codec->type) {
815 case AVMEDIA_TYPE_VIDEO:
816 frame->format = avctx->pix_fmt;
817 if (!frame->sample_aspect_ratio.num)
818 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
820 if (frame->width && frame->height &&
821 av_image_check_sar(frame->width, frame->height,
822 frame->sample_aspect_ratio) < 0) {
823 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
824 frame->sample_aspect_ratio.num,
825 frame->sample_aspect_ratio.den);
826 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
830 case AVMEDIA_TYPE_AUDIO:
831 if (!frame->sample_rate)
832 frame->sample_rate = avctx->sample_rate;
833 if (frame->format < 0)
834 frame->format = avctx->sample_fmt;
835 if (!frame->channel_layout) {
836 if (avctx->channel_layout) {
837 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
839 av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
841 return AVERROR(EINVAL);
844 frame->channel_layout = avctx->channel_layout;
846 if (avctx->channels > FF_SANE_NB_CHANNELS) {
847 av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
849 return AVERROR(ENOSYS);
853 av_frame_set_channels(frame, avctx->channels);
859 #if FF_API_GET_BUFFER
860 FF_DISABLE_DEPRECATION_WARNINGS
861 int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
863 return avcodec_default_get_buffer2(avctx, frame, 0);
866 typedef struct CompatReleaseBufPriv {
867 AVCodecContext avctx;
869 uint8_t avframe_padding[1024]; // hack to allow linking to a avutil with larger AVFrame
870 } CompatReleaseBufPriv;
872 static void compat_free_buffer(void *opaque, uint8_t *data)
874 CompatReleaseBufPriv *priv = opaque;
875 if (priv->avctx.release_buffer)
876 priv->avctx.release_buffer(&priv->avctx, &priv->frame);
880 static void compat_release_buffer(void *opaque, uint8_t *data)
882 AVBufferRef *buf = opaque;
883 av_buffer_unref(&buf);
885 FF_ENABLE_DEPRECATION_WARNINGS
888 int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
890 return ff_init_buffer_info(avctx, frame);
893 static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
895 const AVHWAccel *hwaccel = avctx->hwaccel;
896 int override_dimensions = 1;
899 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
900 if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
901 av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
902 return AVERROR(EINVAL);
905 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
906 if (frame->width <= 0 || frame->height <= 0) {
907 frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
908 frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
909 override_dimensions = 0;
912 ret = ff_decode_frame_props(avctx, frame);
917 if (hwaccel->alloc_frame) {
918 ret = hwaccel->alloc_frame(avctx, frame);
922 avctx->sw_pix_fmt = avctx->pix_fmt;
924 #if FF_API_GET_BUFFER
925 FF_DISABLE_DEPRECATION_WARNINGS
927 * Wrap an old get_buffer()-allocated buffer in a bunch of AVBuffers.
928 * We wrap each plane in its own AVBuffer. Each of those has a reference to
929 * a dummy AVBuffer as its private data, unreffing it on free.
930 * When all the planes are freed, the dummy buffer's free callback calls
933 if (avctx->get_buffer) {
934 CompatReleaseBufPriv *priv = NULL;
935 AVBufferRef *dummy_buf = NULL;
938 if (flags & AV_GET_BUFFER_FLAG_REF)
939 frame->reference = 1;
941 ret = avctx->get_buffer(avctx, frame);
945 /* return if the buffers are already set up
946 * this would happen e.g. when a custom get_buffer() calls
947 * avcodec_default_get_buffer
952 priv = av_mallocz(sizeof(*priv));
954 ret = AVERROR(ENOMEM);
957 priv->avctx = *avctx;
958 priv->frame = *frame;
960 dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0);
962 ret = AVERROR(ENOMEM);
966 #define WRAP_PLANE(ref_out, data, data_size) \
968 AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \
970 ret = AVERROR(ENOMEM); \
973 ref_out = av_buffer_create(data, data_size, compat_release_buffer, \
976 av_buffer_unref(&dummy_ref); \
977 av_frame_unref(frame); \
978 ret = AVERROR(ENOMEM); \
983 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
984 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
986 planes = av_pix_fmt_count_planes(frame->format);
987 /* workaround for AVHWAccel plane count of 0, buf[0] is used as
988 check for allocated buffers: make libavcodec happy */
989 if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
991 if (!desc || planes <= 0) {
992 ret = AVERROR(EINVAL);
996 for (i = 0; i < planes; i++) {
997 int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
998 int plane_size = (frame->height >> v_shift) * frame->linesize[i];
1000 WRAP_PLANE(frame->buf[i], frame->data[i], plane_size);
1003 int planar = av_sample_fmt_is_planar(frame->format);
1004 planes = planar ? avctx->channels : 1;
1006 if (planes > FF_ARRAY_ELEMS(frame->buf)) {
1007 frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf);
1008 frame->extended_buf = av_malloc_array(sizeof(*frame->extended_buf),
1009 frame->nb_extended_buf);
1010 if (!frame->extended_buf) {
1011 ret = AVERROR(ENOMEM);
1016 for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++)
1017 WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]);
1019 for (i = 0; i < frame->nb_extended_buf; i++)
1020 WRAP_PLANE(frame->extended_buf[i],
1021 frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)],
1022 frame->linesize[0]);
1025 av_buffer_unref(&dummy_buf);
1028 frame->width = avctx->width;
1029 frame->height = avctx->height;
1034 avctx->release_buffer(avctx, frame);
1036 av_buffer_unref(&dummy_buf);
1039 FF_ENABLE_DEPRECATION_WARNINGS
1042 ret = avctx->get_buffer2(avctx, frame, flags);
1045 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
1046 frame->width = avctx->width;
1047 frame->height = avctx->height;
1053 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1055 int ret = get_buffer_internal(avctx, frame, flags);
1057 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1061 static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
1066 av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
1068 if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
1069 av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
1070 frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
1071 av_frame_unref(frame);
1074 ff_init_buffer_info(avctx, frame);
1076 if (!frame->data[0])
1077 return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1079 if (av_frame_is_writable(frame))
1080 return ff_decode_frame_props(avctx, frame);
1082 tmp = av_frame_alloc();
1084 return AVERROR(ENOMEM);
1086 av_frame_move_ref(tmp, frame);
1088 ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1090 av_frame_free(&tmp);
1094 av_frame_copy(frame, tmp);
1095 av_frame_free(&tmp);
1100 int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
1102 int ret = reget_buffer_internal(avctx, frame);
1104 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1108 #if FF_API_GET_BUFFER
1109 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
1111 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
1113 av_frame_unref(pic);
1116 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
1123 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
1127 for (i = 0; i < count; i++) {
1128 int r = func(c, (char *)arg + i * size);
1135 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
1139 for (i = 0; i < count; i++) {
1140 int r = func(c, arg, i, 0);
1147 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
1148 unsigned int fourcc)
1150 while (tags->pix_fmt >= 0) {
1151 if (tags->fourcc == fourcc)
1152 return tags->pix_fmt;
1155 return AV_PIX_FMT_NONE;
1158 static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
1160 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1161 return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1164 enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
1166 while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1171 static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
1172 enum AVPixelFormat pix_fmt)
1174 AVHWAccel *hwaccel = NULL;
1176 while ((hwaccel = av_hwaccel_next(hwaccel)))
1177 if (hwaccel->id == codec_id
1178 && hwaccel->pix_fmt == pix_fmt)
1183 static int setup_hwaccel(AVCodecContext *avctx,
1184 const enum AVPixelFormat fmt,
1187 AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1191 av_log(avctx, AV_LOG_ERROR,
1192 "Could not find an AVHWAccel for the pixel format: %s",
1194 return AVERROR(ENOENT);
1197 if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1198 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1199 av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1201 return AVERROR_PATCHWELCOME;
1204 if (hwa->priv_data_size) {
1205 avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
1206 if (!avctx->internal->hwaccel_priv_data)
1207 return AVERROR(ENOMEM);
1211 ret = hwa->init(avctx);
1213 av_freep(&avctx->internal->hwaccel_priv_data);
1218 avctx->hwaccel = hwa;
1223 int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1225 const AVPixFmtDescriptor *desc;
1226 enum AVPixelFormat *choices;
1227 enum AVPixelFormat ret;
1230 while (fmt[n] != AV_PIX_FMT_NONE)
1234 avctx->sw_pix_fmt = fmt[n - 1];
1235 av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
1237 choices = av_malloc_array(n + 1, sizeof(*choices));
1239 return AV_PIX_FMT_NONE;
1241 memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1244 if (avctx->hwaccel && avctx->hwaccel->uninit)
1245 avctx->hwaccel->uninit(avctx);
1246 av_freep(&avctx->internal->hwaccel_priv_data);
1247 avctx->hwaccel = NULL;
1249 ret = avctx->get_format(avctx, choices);
1251 desc = av_pix_fmt_desc_get(ret);
1253 ret = AV_PIX_FMT_NONE;
1257 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1259 if (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
1262 if (!setup_hwaccel(avctx, ret, desc->name))
1265 /* Remove failed hwaccel from choices */
1266 for (n = 0; choices[n] != ret; n++)
1267 av_assert0(choices[n] != AV_PIX_FMT_NONE);
1270 choices[n] = choices[n + 1];
1271 while (choices[n++] != AV_PIX_FMT_NONE);
1278 #if FF_API_AVFRAME_LAVC
1279 void avcodec_get_frame_defaults(AVFrame *frame)
1281 #if LIBAVCODEC_VERSION_MAJOR >= 55
1282 // extended_data should explicitly be freed when needed, this code is unsafe currently
1283 // also this is not compatible to the <55 ABI/API
1284 if (frame->extended_data != frame->data && 0)
1285 av_freep(&frame->extended_data);
1288 memset(frame, 0, sizeof(AVFrame));
1289 av_frame_unref(frame);
1292 AVFrame *avcodec_alloc_frame(void)
1294 return av_frame_alloc();
1297 void avcodec_free_frame(AVFrame **frame)
1299 av_frame_free(frame);
1303 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1304 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1305 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1306 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1307 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1309 int av_codec_get_max_lowres(const AVCodec *codec)
1311 return codec->max_lowres;
1314 static void get_subtitle_defaults(AVSubtitle *sub)
1316 memset(sub, 0, sizeof(*sub));
1317 sub->pts = AV_NOPTS_VALUE;
1320 static int get_bit_rate(AVCodecContext *ctx)
1323 int bits_per_sample;
1325 switch (ctx->codec_type) {
1326 case AVMEDIA_TYPE_VIDEO:
1327 case AVMEDIA_TYPE_DATA:
1328 case AVMEDIA_TYPE_SUBTITLE:
1329 case AVMEDIA_TYPE_ATTACHMENT:
1330 bit_rate = ctx->bit_rate;
1332 case AVMEDIA_TYPE_AUDIO:
1333 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1334 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1343 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1347 ff_unlock_avcodec();
1349 ret = avcodec_open2(avctx, codec, options);
1351 ff_lock_avcodec(avctx, codec);
1355 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1358 AVDictionary *tmp = NULL;
1360 if (avcodec_is_open(avctx))
1363 if ((!codec && !avctx->codec)) {
1364 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1365 return AVERROR(EINVAL);
1367 if ((codec && avctx->codec && codec != avctx->codec)) {
1368 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1369 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1370 return AVERROR(EINVAL);
1373 codec = avctx->codec;
1375 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1376 return AVERROR(EINVAL);
1379 av_dict_copy(&tmp, *options, 0);
1381 ret = ff_lock_avcodec(avctx, codec);
1385 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1386 if (!avctx->internal) {
1387 ret = AVERROR(ENOMEM);
1391 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1392 if (!avctx->internal->pool) {
1393 ret = AVERROR(ENOMEM);
1397 avctx->internal->to_free = av_frame_alloc();
1398 if (!avctx->internal->to_free) {
1399 ret = AVERROR(ENOMEM);
1403 if (codec->priv_data_size > 0) {
1404 if (!avctx->priv_data) {
1405 avctx->priv_data = av_mallocz(codec->priv_data_size);
1406 if (!avctx->priv_data) {
1407 ret = AVERROR(ENOMEM);
1410 if (codec->priv_class) {
1411 *(const AVClass **)avctx->priv_data = codec->priv_class;
1412 av_opt_set_defaults(avctx->priv_data);
1415 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1418 avctx->priv_data = NULL;
1420 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1423 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1424 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist\n", codec->name);
1425 ret = AVERROR(EINVAL);
1429 // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions
1430 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1431 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) {
1432 if (avctx->coded_width && avctx->coded_height)
1433 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1434 else if (avctx->width && avctx->height)
1435 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1440 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1441 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1442 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1443 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1444 ff_set_dimensions(avctx, 0, 0);
1447 if (avctx->width > 0 && avctx->height > 0) {
1448 if (av_image_check_sar(avctx->width, avctx->height,
1449 avctx->sample_aspect_ratio) < 0) {
1450 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1451 avctx->sample_aspect_ratio.num,
1452 avctx->sample_aspect_ratio.den);
1453 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1457 /* if the decoder init function was already called previously,
1458 * free the already allocated subtitle_header before overwriting it */
1459 if (av_codec_is_decoder(codec))
1460 av_freep(&avctx->subtitle_header);
1462 if (avctx->channels > FF_SANE_NB_CHANNELS) {
1463 ret = AVERROR(EINVAL);
1467 avctx->codec = codec;
1468 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1469 avctx->codec_id == AV_CODEC_ID_NONE) {
1470 avctx->codec_type = codec->type;
1471 avctx->codec_id = codec->id;
1473 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1474 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1475 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1476 ret = AVERROR(EINVAL);
1479 avctx->frame_number = 0;
1480 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
1482 if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1483 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1484 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1486 av_log(avctx, AV_LOG_ERROR,
1487 "The %s '%s' is experimental but experimental codecs are not enabled, "
1488 "add '-strict %d' if you want to use it.\n",
1489 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1490 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1491 if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
1492 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1493 codec_string, codec2->name);
1494 ret = AVERROR_EXPERIMENTAL;
1498 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1499 (!avctx->time_base.num || !avctx->time_base.den)) {
1500 avctx->time_base.num = 1;
1501 avctx->time_base.den = avctx->sample_rate;
1505 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1507 if (CONFIG_FRAME_THREAD_ENCODER) {
1508 ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
1509 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1510 ff_lock_avcodec(avctx, codec);
1516 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
1517 ret = ff_thread_init(avctx);
1522 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
1523 avctx->thread_count = 1;
1525 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1526 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1527 avctx->codec->max_lowres);
1528 ret = AVERROR(EINVAL);
1533 if (avctx->debug_mv)
1534 av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1535 "see the codecview filter instead.\n");
1538 if (av_codec_is_encoder(avctx->codec)) {
1540 if (avctx->codec->sample_fmts) {
1541 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1542 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1544 if (avctx->channels == 1 &&
1545 av_get_planar_sample_fmt(avctx->sample_fmt) ==
1546 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
1547 avctx->sample_fmt = avctx->codec->sample_fmts[i];
1551 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1553 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1554 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1555 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1556 ret = AVERROR(EINVAL);
1560 if (avctx->codec->pix_fmts) {
1561 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1562 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1564 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1565 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1566 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
1568 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1569 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1570 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1571 ret = AVERROR(EINVAL);
1574 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1575 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1576 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1577 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1578 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1579 avctx->color_range = AVCOL_RANGE_JPEG;
1581 if (avctx->codec->supported_samplerates) {
1582 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1583 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1585 if (avctx->codec->supported_samplerates[i] == 0) {
1586 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1587 avctx->sample_rate);
1588 ret = AVERROR(EINVAL);
1592 if (avctx->codec->channel_layouts) {
1593 if (!avctx->channel_layout) {
1594 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1596 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1597 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1599 if (avctx->codec->channel_layouts[i] == 0) {
1601 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1602 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1603 ret = AVERROR(EINVAL);
1608 if (avctx->channel_layout && avctx->channels) {
1609 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1610 if (channels != avctx->channels) {
1612 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1613 av_log(avctx, AV_LOG_ERROR,
1614 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1615 buf, channels, avctx->channels);
1616 ret = AVERROR(EINVAL);
1619 } else if (avctx->channel_layout) {
1620 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1622 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1623 if (avctx->width <= 0 || avctx->height <= 0) {
1624 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1625 ret = AVERROR(EINVAL);
1629 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1630 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1631 av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate);
1634 if (!avctx->rc_initial_buffer_occupancy)
1635 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1638 avctx->pts_correction_num_faulty_pts =
1639 avctx->pts_correction_num_faulty_dts = 0;
1640 avctx->pts_correction_last_pts =
1641 avctx->pts_correction_last_dts = INT64_MIN;
1643 if ( !CONFIG_GRAY && avctx->flags & CODEC_FLAG_GRAY
1644 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
1645 av_log(avctx, AV_LOG_WARNING,
1646 "gray decoding requested but not enabled at configuration time\n");
1648 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1649 || avctx->internal->frame_thread_encoder)) {
1650 ret = avctx->codec->init(avctx);
1658 #if FF_API_AUDIOENC_DELAY
1659 if (av_codec_is_encoder(avctx->codec))
1660 avctx->delay = avctx->initial_padding;
1663 if (av_codec_is_decoder(avctx->codec)) {
1664 if (!avctx->bit_rate)
1665 avctx->bit_rate = get_bit_rate(avctx);
1666 /* validate channel layout from the decoder */
1667 if (avctx->channel_layout) {
1668 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1669 if (!avctx->channels)
1670 avctx->channels = channels;
1671 else if (channels != avctx->channels) {
1673 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1674 av_log(avctx, AV_LOG_WARNING,
1675 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1676 "ignoring specified channel layout\n",
1677 buf, channels, avctx->channels);
1678 avctx->channel_layout = 0;
1681 if (avctx->channels && avctx->channels < 0 ||
1682 avctx->channels > FF_SANE_NB_CHANNELS) {
1683 ret = AVERROR(EINVAL);
1686 if (avctx->sub_charenc) {
1687 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1688 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1689 "supported with subtitles codecs\n");
1690 ret = AVERROR(EINVAL);
1692 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1693 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1694 "subtitles character encoding will be ignored\n",
1695 avctx->codec_descriptor->name);
1696 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1698 /* input character encoding is set for a text based subtitle
1699 * codec at this point */
1700 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1701 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1703 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1705 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1706 if (cd == (iconv_t)-1) {
1707 ret = AVERROR(errno);
1708 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1709 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1714 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1715 "conversion needs a libavcodec built with iconv support "
1716 "for this codec\n");
1717 ret = AVERROR(ENOSYS);
1724 #if FF_API_AVCTX_TIMEBASE
1725 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1726 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1729 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1730 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1734 ff_unlock_avcodec();
1736 av_dict_free(options);
1743 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1744 avctx->codec->close(avctx);
1746 if (codec->priv_class && codec->priv_data_size)
1747 av_opt_free(avctx->priv_data);
1751 av_freep(&avctx->priv_data);
1752 if (avctx->internal) {
1753 av_frame_free(&avctx->internal->to_free);
1754 av_freep(&avctx->internal->pool);
1756 av_freep(&avctx->internal);
1757 avctx->codec = NULL;
1761 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
1763 if (avpkt->size < 0) {
1764 av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1765 return AVERROR(EINVAL);
1767 if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1768 av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1769 size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
1770 return AVERROR(EINVAL);
1774 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1775 if (!avpkt->data || avpkt->size < size) {
1776 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1777 avpkt->data = avctx->internal->byte_buffer;
1778 avpkt->size = avctx->internal->byte_buffer_size;
1779 #if FF_API_DESTRUCT_PACKET
1780 FF_DISABLE_DEPRECATION_WARNINGS
1781 avpkt->destruct = NULL;
1782 FF_ENABLE_DEPRECATION_WARNINGS
1788 AVBufferRef *buf = avpkt->buf;
1789 #if FF_API_DESTRUCT_PACKET
1790 FF_DISABLE_DEPRECATION_WARNINGS
1791 void *destruct = avpkt->destruct;
1792 FF_ENABLE_DEPRECATION_WARNINGS
1795 if (avpkt->size < size) {
1796 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1797 return AVERROR(EINVAL);
1800 av_init_packet(avpkt);
1801 #if FF_API_DESTRUCT_PACKET
1802 FF_DISABLE_DEPRECATION_WARNINGS
1803 avpkt->destruct = destruct;
1804 FF_ENABLE_DEPRECATION_WARNINGS
1810 int ret = av_new_packet(avpkt, size);
1812 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1817 int ff_alloc_packet(AVPacket *avpkt, int size)
1819 return ff_alloc_packet2(NULL, avpkt, size);
1823 * Pad last frame with silence.
1825 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1827 AVFrame *frame = NULL;
1830 if (!(frame = av_frame_alloc()))
1831 return AVERROR(ENOMEM);
1833 frame->format = src->format;
1834 frame->channel_layout = src->channel_layout;
1835 av_frame_set_channels(frame, av_frame_get_channels(src));
1836 frame->nb_samples = s->frame_size;
1837 ret = av_frame_get_buffer(frame, 32);
1841 ret = av_frame_copy_props(frame, src);
1845 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1846 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1848 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1849 frame->nb_samples - src->nb_samples,
1850 s->channels, s->sample_fmt)) < 0)
1858 av_frame_free(&frame);
1862 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1864 const AVFrame *frame,
1865 int *got_packet_ptr)
1867 AVFrame *extended_frame = NULL;
1868 AVFrame *padded_frame = NULL;
1870 AVPacket user_pkt = *avpkt;
1871 int needs_realloc = !user_pkt.data;
1873 *got_packet_ptr = 0;
1875 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1876 av_free_packet(avpkt);
1877 av_init_packet(avpkt);
1881 /* ensure that extended_data is properly set */
1882 if (frame && !frame->extended_data) {
1883 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1884 avctx->channels > AV_NUM_DATA_POINTERS) {
1885 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1886 "with more than %d channels, but extended_data is not set.\n",
1887 AV_NUM_DATA_POINTERS);
1888 return AVERROR(EINVAL);
1890 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1892 extended_frame = av_frame_alloc();
1893 if (!extended_frame)
1894 return AVERROR(ENOMEM);
1896 memcpy(extended_frame, frame, sizeof(AVFrame));
1897 extended_frame->extended_data = extended_frame->data;
1898 frame = extended_frame;
1901 /* extract audio service type metadata */
1903 AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
1904 if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1905 avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1908 /* check for valid frame size */
1910 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1911 if (frame->nb_samples > avctx->frame_size) {
1912 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1913 ret = AVERROR(EINVAL);
1916 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1917 if (frame->nb_samples < avctx->frame_size &&
1918 !avctx->internal->last_audio_frame) {
1919 ret = pad_last_frame(avctx, &padded_frame, frame);
1923 frame = padded_frame;
1924 avctx->internal->last_audio_frame = 1;
1927 if (frame->nb_samples != avctx->frame_size) {
1928 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1929 ret = AVERROR(EINVAL);
1935 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1937 if (*got_packet_ptr) {
1938 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1939 if (avpkt->pts == AV_NOPTS_VALUE)
1940 avpkt->pts = frame->pts;
1941 if (!avpkt->duration)
1942 avpkt->duration = ff_samples_to_time_base(avctx,
1945 avpkt->dts = avpkt->pts;
1950 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1952 if (user_pkt.data) {
1953 if (user_pkt.size >= avpkt->size) {
1954 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1956 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1957 avpkt->size = user_pkt.size;
1960 avpkt->buf = user_pkt.buf;
1961 avpkt->data = user_pkt.data;
1962 #if FF_API_DESTRUCT_PACKET
1963 FF_DISABLE_DEPRECATION_WARNINGS
1964 avpkt->destruct = user_pkt.destruct;
1965 FF_ENABLE_DEPRECATION_WARNINGS
1968 if (av_dup_packet(avpkt) < 0) {
1969 ret = AVERROR(ENOMEM);
1975 if (needs_realloc && avpkt->data) {
1976 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1978 avpkt->data = avpkt->buf->data;
1981 avctx->frame_number++;
1984 if (ret < 0 || !*got_packet_ptr) {
1985 av_free_packet(avpkt);
1986 av_init_packet(avpkt);
1990 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1991 * this needs to be moved to the encoders, but for now we can do it
1992 * here to simplify things */
1993 avpkt->flags |= AV_PKT_FLAG_KEY;
1996 av_frame_free(&padded_frame);
1997 av_free(extended_frame);
1999 #if FF_API_AUDIOENC_DELAY
2000 avctx->delay = avctx->initial_padding;
2006 #if FF_API_OLD_ENCODE_AUDIO
2007 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
2008 uint8_t *buf, int buf_size,
2009 const short *samples)
2013 int ret, samples_size, got_packet;
2015 av_init_packet(&pkt);
2017 pkt.size = buf_size;
2020 frame = av_frame_alloc();
2022 return AVERROR(ENOMEM);
2024 if (avctx->frame_size) {
2025 frame->nb_samples = avctx->frame_size;
2027 /* if frame_size is not set, the number of samples must be
2028 * calculated from the buffer size */
2030 if (!av_get_bits_per_sample(avctx->codec_id)) {
2031 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
2032 "support this codec\n");
2033 av_frame_free(&frame);
2034 return AVERROR(EINVAL);
2036 nb_samples = (int64_t)buf_size * 8 /
2037 (av_get_bits_per_sample(avctx->codec_id) *
2039 if (nb_samples >= INT_MAX) {
2040 av_frame_free(&frame);
2041 return AVERROR(EINVAL);
2043 frame->nb_samples = nb_samples;
2046 /* it is assumed that the samples buffer is large enough based on the
2047 * relevant parameters */
2048 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
2050 avctx->sample_fmt, 1);
2051 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
2053 (const uint8_t *)samples,
2054 samples_size, 1)) < 0) {
2055 av_frame_free(&frame);
2059 /* fabricate frame pts from sample count.
2060 * this is needed because the avcodec_encode_audio() API does not have
2061 * a way for the user to provide pts */
2062 if (avctx->sample_rate && avctx->time_base.num)
2063 frame->pts = ff_samples_to_time_base(avctx,
2064 avctx->internal->sample_count);
2066 frame->pts = AV_NOPTS_VALUE;
2067 avctx->internal->sample_count += frame->nb_samples;
2073 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
2074 if (!ret && got_packet && avctx->coded_frame) {
2075 avctx->coded_frame->pts = pkt.pts;
2076 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2078 /* free any side data since we cannot return it */
2079 av_packet_free_side_data(&pkt);
2081 if (frame && frame->extended_data != frame->data)
2082 av_freep(&frame->extended_data);
2084 av_frame_free(&frame);
2085 return ret ? ret : pkt.size;
2090 #if FF_API_OLD_ENCODE_VIDEO
2091 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2092 const AVFrame *pict)
2095 int ret, got_packet = 0;
2097 if (buf_size < FF_MIN_BUFFER_SIZE) {
2098 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
2102 av_init_packet(&pkt);
2104 pkt.size = buf_size;
2106 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
2107 if (!ret && got_packet && avctx->coded_frame) {
2108 avctx->coded_frame->pts = pkt.pts;
2109 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
2112 /* free any side data since we cannot return it */
2113 if (pkt.side_data_elems > 0) {
2115 for (i = 0; i < pkt.side_data_elems; i++)
2116 av_free(pkt.side_data[i].data);
2117 av_freep(&pkt.side_data);
2118 pkt.side_data_elems = 0;
2121 return ret ? ret : pkt.size;
2126 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
2128 const AVFrame *frame,
2129 int *got_packet_ptr)
2132 AVPacket user_pkt = *avpkt;
2133 int needs_realloc = !user_pkt.data;
2135 *got_packet_ptr = 0;
2137 if(CONFIG_FRAME_THREAD_ENCODER &&
2138 avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
2139 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
2141 if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
2142 avctx->stats_out[0] = '\0';
2144 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
2145 av_free_packet(avpkt);
2146 av_init_packet(avpkt);
2151 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
2152 return AVERROR(EINVAL);
2154 if (frame && frame->format == AV_PIX_FMT_NONE)
2155 av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
2156 if (frame && (frame->width == 0 || frame->height == 0))
2157 av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
2159 av_assert0(avctx->codec->encode2);
2161 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
2162 av_assert0(ret <= 0);
2164 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
2166 if (user_pkt.data) {
2167 if (user_pkt.size >= avpkt->size) {
2168 memcpy(user_pkt.data, avpkt->data, avpkt->size);
2170 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
2171 avpkt->size = user_pkt.size;
2174 avpkt->buf = user_pkt.buf;
2175 avpkt->data = user_pkt.data;
2176 #if FF_API_DESTRUCT_PACKET
2177 FF_DISABLE_DEPRECATION_WARNINGS
2178 avpkt->destruct = user_pkt.destruct;
2179 FF_ENABLE_DEPRECATION_WARNINGS
2182 if (av_dup_packet(avpkt) < 0) {
2183 ret = AVERROR(ENOMEM);
2189 if (!*got_packet_ptr)
2191 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
2192 avpkt->pts = avpkt->dts = frame->pts;
2194 if (needs_realloc && avpkt->data) {
2195 ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
2197 avpkt->data = avpkt->buf->data;
2200 avctx->frame_number++;
2203 if (ret < 0 || !*got_packet_ptr)
2204 av_free_packet(avpkt);
2206 av_packet_merge_side_data(avpkt);
2212 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2213 const AVSubtitle *sub)
2216 if (sub->start_display_time) {
2217 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2221 ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2222 avctx->frame_number++;
2227 * Attempt to guess proper monotonic timestamps for decoded video frames
2228 * which might have incorrect times. Input timestamps may wrap around, in
2229 * which case the output will as well.
2231 * @param pts the pts field of the decoded AVPacket, as passed through
2233 * @param dts the dts field of the decoded AVPacket
2234 * @return one of the input values, may be AV_NOPTS_VALUE
2236 static int64_t guess_correct_pts(AVCodecContext *ctx,
2237 int64_t reordered_pts, int64_t dts)
2239 int64_t pts = AV_NOPTS_VALUE;
2241 if (dts != AV_NOPTS_VALUE) {
2242 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
2243 ctx->pts_correction_last_dts = dts;
2244 } else if (reordered_pts != AV_NOPTS_VALUE)
2245 ctx->pts_correction_last_dts = reordered_pts;
2247 if (reordered_pts != AV_NOPTS_VALUE) {
2248 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2249 ctx->pts_correction_last_pts = reordered_pts;
2250 } else if(dts != AV_NOPTS_VALUE)
2251 ctx->pts_correction_last_pts = dts;
2253 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
2254 && reordered_pts != AV_NOPTS_VALUE)
2255 pts = reordered_pts;
2262 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2265 const uint8_t *data;
2269 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2273 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) {
2274 av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2275 "changes, but PARAM_CHANGE side data was sent to it.\n");
2276 return AVERROR(EINVAL);
2282 flags = bytestream_get_le32(&data);
2285 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
2288 val = bytestream_get_le32(&data);
2289 if (val <= 0 || val > INT_MAX) {
2290 av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2291 return AVERROR_INVALIDDATA;
2293 avctx->channels = val;
2296 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
2299 avctx->channel_layout = bytestream_get_le64(&data);
2302 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
2305 val = bytestream_get_le32(&data);
2306 if (val <= 0 || val > INT_MAX) {
2307 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2308 return AVERROR_INVALIDDATA;
2310 avctx->sample_rate = val;
2313 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
2316 avctx->width = bytestream_get_le32(&data);
2317 avctx->height = bytestream_get_le32(&data);
2319 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2326 av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2327 return AVERROR_INVALIDDATA;
2330 static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
2334 /* move the original frame to our backup */
2335 av_frame_unref(avci->to_free);
2336 av_frame_move_ref(avci->to_free, frame);
2338 /* now copy everything except the AVBufferRefs back
2339 * note that we make a COPY of the side data, so calling av_frame_free() on
2340 * the caller's frame will work properly */
2341 ret = av_frame_copy_props(frame, avci->to_free);
2345 memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2346 memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2347 if (avci->to_free->extended_data != avci->to_free->data) {
2348 int planes = av_frame_get_channels(avci->to_free);
2349 int size = planes * sizeof(*frame->extended_data);
2352 av_frame_unref(frame);
2356 frame->extended_data = av_malloc(size);
2357 if (!frame->extended_data) {
2358 av_frame_unref(frame);
2359 return AVERROR(ENOMEM);
2361 memcpy(frame->extended_data, avci->to_free->extended_data,
2364 frame->extended_data = frame->data;
2366 frame->format = avci->to_free->format;
2367 frame->width = avci->to_free->width;
2368 frame->height = avci->to_free->height;
2369 frame->channel_layout = avci->to_free->channel_layout;
2370 frame->nb_samples = avci->to_free->nb_samples;
2371 av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
2376 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2377 int *got_picture_ptr,
2378 const AVPacket *avpkt)
2380 AVCodecInternal *avci = avctx->internal;
2382 // copy to ensure we do not change avpkt
2383 AVPacket tmp = *avpkt;
2386 return AVERROR(EINVAL);
2387 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2388 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2389 return AVERROR(EINVAL);
2392 *got_picture_ptr = 0;
2393 if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2394 return AVERROR(EINVAL);
2396 av_frame_unref(picture);
2398 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2399 int did_split = av_packet_split_side_data(&tmp);
2400 ret = apply_param_change(avctx, &tmp);
2402 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2403 if (avctx->err_recognition & AV_EF_EXPLODE)
2407 avctx->internal->pkt = &tmp;
2408 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2409 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2412 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2414 picture->pkt_dts = avpkt->dts;
2416 if(!avctx->has_b_frames){
2417 av_frame_set_pkt_pos(picture, avpkt->pos);
2419 //FIXME these should be under if(!avctx->has_b_frames)
2420 /* get_buffer is supposed to set frame parameters */
2421 if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
2422 if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2423 if (!picture->width) picture->width = avctx->width;
2424 if (!picture->height) picture->height = avctx->height;
2425 if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2430 emms_c(); //needed to avoid an emms_c() call before every return;
2432 avctx->internal->pkt = NULL;
2434 av_packet_free_side_data(&tmp);
2439 if (*got_picture_ptr) {
2440 if (!avctx->refcounted_frames) {
2441 int err = unrefcount_frame(avci, picture);
2446 avctx->frame_number++;
2447 av_frame_set_best_effort_timestamp(picture,
2448 guess_correct_pts(avctx,
2452 av_frame_unref(picture);
2456 /* many decoders assign whole AVFrames, thus overwriting extended_data;
2457 * make sure it's set correctly */
2458 av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2460 #if FF_API_AVCTX_TIMEBASE
2461 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2462 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2468 #if FF_API_OLD_DECODE_AUDIO
2469 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
2470 int *frame_size_ptr,
2473 AVFrame *frame = av_frame_alloc();
2474 int ret, got_frame = 0;
2477 return AVERROR(ENOMEM);
2478 if (avctx->get_buffer != avcodec_default_get_buffer) {
2479 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
2480 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
2481 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
2482 "avcodec_decode_audio4()\n");
2483 avctx->get_buffer = avcodec_default_get_buffer;
2484 avctx->release_buffer = avcodec_default_release_buffer;
2487 ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt);
2489 if (ret >= 0 && got_frame) {
2491 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
2492 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
2494 avctx->sample_fmt, 1);
2495 if (*frame_size_ptr < data_size) {
2496 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
2497 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
2498 av_frame_free(&frame);
2499 return AVERROR(EINVAL);
2502 memcpy(samples, frame->extended_data[0], plane_size);
2504 if (planar && avctx->channels > 1) {
2505 uint8_t *out = ((uint8_t *)samples) + plane_size;
2506 for (ch = 1; ch < avctx->channels; ch++) {
2507 memcpy(out, frame->extended_data[ch], plane_size);
2511 *frame_size_ptr = data_size;
2513 *frame_size_ptr = 0;
2515 av_frame_free(&frame);
2521 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2524 const AVPacket *avpkt)
2526 AVCodecInternal *avci = avctx->internal;
2531 if (!avpkt->data && avpkt->size) {
2532 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2533 return AVERROR(EINVAL);
2536 return AVERROR(EINVAL);
2537 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2538 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2539 return AVERROR(EINVAL);
2542 av_frame_unref(frame);
2544 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2547 uint32_t discard_padding = 0;
2548 uint8_t skip_reason = 0;
2549 uint8_t discard_reason = 0;
2550 // copy to ensure we do not change avpkt
2551 AVPacket tmp = *avpkt;
2552 int did_split = av_packet_split_side_data(&tmp);
2553 ret = apply_param_change(avctx, &tmp);
2555 av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2556 if (avctx->err_recognition & AV_EF_EXPLODE)
2560 avctx->internal->pkt = &tmp;
2561 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2562 ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2564 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2565 av_assert0(ret <= tmp.size);
2566 frame->pkt_dts = avpkt->dts;
2568 if (ret >= 0 && *got_frame_ptr) {
2569 avctx->frame_number++;
2570 av_frame_set_best_effort_timestamp(frame,
2571 guess_correct_pts(avctx,
2574 if (frame->format == AV_SAMPLE_FMT_NONE)
2575 frame->format = avctx->sample_fmt;
2576 if (!frame->channel_layout)
2577 frame->channel_layout = avctx->channel_layout;
2578 if (!av_frame_get_channels(frame))
2579 av_frame_set_channels(frame, avctx->channels);
2580 if (!frame->sample_rate)
2581 frame->sample_rate = avctx->sample_rate;
2584 side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2585 if(side && side_size>=10) {
2586 avctx->internal->skip_samples = AV_RL32(side);
2587 discard_padding = AV_RL32(side + 4);
2588 av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2589 avctx->internal->skip_samples, (int)discard_padding);
2590 skip_reason = AV_RL8(side + 8);
2591 discard_reason = AV_RL8(side + 9);
2593 if (avctx->internal->skip_samples && *got_frame_ptr &&
2594 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2595 if(frame->nb_samples <= avctx->internal->skip_samples){
2597 avctx->internal->skip_samples -= frame->nb_samples;
2598 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2599 avctx->internal->skip_samples);
2601 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
2602 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2603 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2604 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2605 (AVRational){1, avctx->sample_rate},
2606 avctx->pkt_timebase);
2607 if(frame->pkt_pts!=AV_NOPTS_VALUE)
2608 frame->pkt_pts += diff_ts;
2609 if(frame->pkt_dts!=AV_NOPTS_VALUE)
2610 frame->pkt_dts += diff_ts;
2611 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2612 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2614 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2616 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2617 avctx->internal->skip_samples, frame->nb_samples);
2618 frame->nb_samples -= avctx->internal->skip_samples;
2619 avctx->internal->skip_samples = 0;
2623 if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2624 !(avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL)) {
2625 if (discard_padding == frame->nb_samples) {
2628 if(avctx->pkt_timebase.num && avctx->sample_rate) {
2629 int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2630 (AVRational){1, avctx->sample_rate},
2631 avctx->pkt_timebase);
2632 if (av_frame_get_pkt_duration(frame) >= diff_ts)
2633 av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2635 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2637 av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2638 (int)discard_padding, frame->nb_samples);
2639 frame->nb_samples -= discard_padding;
2643 if ((avctx->flags2 & CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2644 AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
2646 AV_WL32(fside->data, avctx->internal->skip_samples);
2647 AV_WL32(fside->data + 4, discard_padding);
2648 AV_WL8(fside->data + 8, skip_reason);
2649 AV_WL8(fside->data + 9, discard_reason);
2650 avctx->internal->skip_samples = 0;
2654 avctx->internal->pkt = NULL;
2656 av_packet_free_side_data(&tmp);
2661 if (ret >= 0 && *got_frame_ptr) {
2662 if (!avctx->refcounted_frames) {
2663 int err = unrefcount_frame(avci, frame);
2668 av_frame_unref(frame);
2674 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2675 static int recode_subtitle(AVCodecContext *avctx,
2676 AVPacket *outpkt, const AVPacket *inpkt)
2679 iconv_t cd = (iconv_t)-1;
2686 if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2690 cd = iconv_open("UTF-8", avctx->sub_charenc);
2691 av_assert0(cd != (iconv_t)-1);
2696 if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) {
2697 av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2698 ret = AVERROR(ENOMEM);
2702 ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2705 outpkt->buf = tmp.buf;
2706 outpkt->data = tmp.data;
2707 outpkt->size = tmp.size;
2708 outb = outpkt->data;
2709 outl = outpkt->size;
2711 if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2712 iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2713 outl >= outpkt->size || inl != 0) {
2714 ret = FFMIN(AVERROR(errno), -1);
2715 av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2716 "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2717 av_free_packet(&tmp);
2720 outpkt->size -= outl;
2721 memset(outpkt->data + outpkt->size, 0, outl);
2724 if (cd != (iconv_t)-1)
2728 av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2729 return AVERROR(EINVAL);
2733 static int utf8_check(const uint8_t *str)
2735 const uint8_t *byte;
2736 uint32_t codepoint, min;
2740 GET_UTF8(codepoint, *(byte++), return 0;);
2741 min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2742 1 << (5 * (byte - str) - 4);
2743 if (codepoint < min || codepoint >= 0x110000 ||
2744 codepoint == 0xFFFE /* BOM */ ||
2745 codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2752 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
2758 if (!avpkt->data && avpkt->size) {
2759 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2760 return AVERROR(EINVAL);
2763 return AVERROR(EINVAL);
2764 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2765 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2766 return AVERROR(EINVAL);
2770 get_subtitle_defaults(sub);
2772 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
2773 AVPacket pkt_recoded;
2774 AVPacket tmp = *avpkt;
2775 int did_split = av_packet_split_side_data(&tmp);
2776 //apply_param_change(avctx, &tmp);
2779 /* FFMIN() prevents overflow in case the packet wasn't allocated with
2781 * If the side data is smaller than the buffer padding size, the
2782 * remaining bytes should have already been filled with zeros by the
2783 * original packet allocation anyway. */
2784 memset(tmp.data + tmp.size, 0,
2785 FFMIN(avpkt->size - tmp.size, FF_INPUT_BUFFER_PADDING_SIZE));
2789 ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2793 avctx->internal->pkt = &pkt_recoded;
2795 if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
2796 sub->pts = av_rescale_q(avpkt->pts,
2797 avctx->pkt_timebase, AV_TIME_BASE_Q);
2798 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2799 av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2800 !!*got_sub_ptr >= !!sub->num_rects);
2802 if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2803 avctx->pkt_timebase.num) {
2804 AVRational ms = { 1, 1000 };
2805 sub->end_display_time = av_rescale_q(avpkt->duration,
2806 avctx->pkt_timebase, ms);
2809 for (i = 0; i < sub->num_rects; i++) {
2810 if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2811 av_log(avctx, AV_LOG_ERROR,
2812 "Invalid UTF-8 in decoded subtitles text; "
2813 "maybe missing -sub_charenc option\n");
2814 avsubtitle_free(sub);
2815 return AVERROR_INVALIDDATA;
2819 if (tmp.data != pkt_recoded.data) { // did we recode?
2820 /* prevent from destroying side data from original packet */
2821 pkt_recoded.side_data = NULL;
2822 pkt_recoded.side_data_elems = 0;
2824 av_free_packet(&pkt_recoded);
2826 if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
2828 else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2830 avctx->internal->pkt = NULL;
2834 av_packet_free_side_data(&tmp);
2840 avctx->frame_number++;
2846 void avsubtitle_free(AVSubtitle *sub)
2850 for (i = 0; i < sub->num_rects; i++) {
2851 av_freep(&sub->rects[i]->pict.data[0]);
2852 av_freep(&sub->rects[i]->pict.data[1]);
2853 av_freep(&sub->rects[i]->pict.data[2]);
2854 av_freep(&sub->rects[i]->pict.data[3]);
2855 av_freep(&sub->rects[i]->text);
2856 av_freep(&sub->rects[i]->ass);
2857 av_freep(&sub->rects[i]);
2860 av_freep(&sub->rects);
2862 memset(sub, 0, sizeof(AVSubtitle));
2865 av_cold int avcodec_close(AVCodecContext *avctx)
2870 if (avcodec_is_open(avctx)) {
2871 FramePool *pool = avctx->internal->pool;
2873 if (CONFIG_FRAME_THREAD_ENCODER &&
2874 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2875 ff_frame_thread_encoder_free(avctx);
2877 if (HAVE_THREADS && avctx->internal->thread_ctx)
2878 ff_thread_free(avctx);
2879 if (avctx->codec && avctx->codec->close)
2880 avctx->codec->close(avctx);
2881 avctx->coded_frame = NULL;
2882 avctx->internal->byte_buffer_size = 0;
2883 av_freep(&avctx->internal->byte_buffer);
2884 av_frame_free(&avctx->internal->to_free);
2885 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2886 av_buffer_pool_uninit(&pool->pools[i]);
2887 av_freep(&avctx->internal->pool);
2889 if (avctx->hwaccel && avctx->hwaccel->uninit)
2890 avctx->hwaccel->uninit(avctx);
2891 av_freep(&avctx->internal->hwaccel_priv_data);
2893 av_freep(&avctx->internal);
2896 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2897 av_opt_free(avctx->priv_data);
2899 av_freep(&avctx->priv_data);
2900 if (av_codec_is_encoder(avctx->codec))
2901 av_freep(&avctx->extradata);
2902 avctx->codec = NULL;
2903 avctx->active_thread_type = 0;
2908 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
2911 //This is for future deprecatec codec ids, its empty since
2912 //last major bump but will fill up again over time, please don't remove it
2913 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
2914 case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX;
2915 case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS;
2916 case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
2917 case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO;
2918 case AV_CODEC_ID_PCM_S16BE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S16BE_PLANAR;
2919 case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR;
2920 case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR;
2921 case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA;
2922 case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130;
2923 case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR;
2924 case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M;
2925 case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO;
2926 case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP;
2927 case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC;
2928 case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1;
2929 case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2;
2930 case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM;
2931 case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE;
2932 case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7;
2933 default : return id;
2937 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
2939 AVCodec *p, *experimental = NULL;
2941 id= remap_deprecated_codec_id(id);
2943 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
2945 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
2952 return experimental;
2955 AVCodec *avcodec_find_encoder(enum AVCodecID id)
2957 return find_encdec(id, 1);
2960 AVCodec *avcodec_find_encoder_by_name(const char *name)
2967 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
2974 AVCodec *avcodec_find_decoder(enum AVCodecID id)
2976 return find_encdec(id, 0);
2979 AVCodec *avcodec_find_decoder_by_name(const char *name)
2986 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
2993 const char *avcodec_get_name(enum AVCodecID id)
2995 const AVCodecDescriptor *cd;
2998 if (id == AV_CODEC_ID_NONE)
3000 cd = avcodec_descriptor_get(id);
3003 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
3004 codec = avcodec_find_decoder(id);
3007 codec = avcodec_find_encoder(id);
3010 return "unknown_codec";
3013 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3015 int i, len, ret = 0;
3017 #define TAG_PRINT(x) \
3018 (((x) >= '0' && (x) <= '9') || \
3019 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3020 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3022 for (i = 0; i < 4; i++) {
3023 len = snprintf(buf, buf_size,
3024 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3026 buf_size = buf_size > len ? buf_size - len : 0;
3033 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3035 const char *codec_type;
3036 const char *codec_name;
3037 const char *profile = NULL;
3041 AVRational display_aspect_ratio;
3042 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3044 if (!buf || buf_size <= 0)
3046 codec_type = av_get_media_type_string(enc->codec_type);
3047 codec_name = avcodec_get_name(enc->codec_id);
3048 if (enc->profile != FF_PROFILE_UNKNOWN) {
3052 p = encode ? avcodec_find_encoder(enc->codec_id) :
3053 avcodec_find_decoder(enc->codec_id);
3055 profile = av_get_profile_name(p, enc->profile);
3058 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3060 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3062 if (enc->codec && strcmp(enc->codec->name, codec_name))
3063 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3066 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3067 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3068 && av_log_get_level() >= AV_LOG_VERBOSE
3070 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3071 ", %d reference frame%s",
3072 enc->refs, enc->refs > 1 ? "s" : "");
3074 if (enc->codec_tag) {
3076 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3077 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3078 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3081 switch (enc->codec_type) {
3082 case AVMEDIA_TYPE_VIDEO:
3084 char detail[256] = "(";
3086 av_strlcat(buf, separator, buf_size);
3088 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3089 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3090 av_get_pix_fmt_name(enc->pix_fmt));
3091 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3092 enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
3093 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3094 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
3095 av_strlcatf(detail, sizeof(detail), "%s, ",
3096 av_color_range_name(enc->color_range));
3098 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3099 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
3100 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3101 if (enc->colorspace != (int)enc->color_primaries ||
3102 enc->colorspace != (int)enc->color_trc) {
3104 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3105 av_color_space_name(enc->colorspace),
3106 av_color_primaries_name(enc->color_primaries),
3107 av_color_transfer_name(enc->color_trc));
3109 av_strlcatf(detail, sizeof(detail), "%s, ",
3110 av_get_colorspace_name(enc->colorspace));
3113 if (av_log_get_level() >= AV_LOG_DEBUG &&
3114 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
3115 av_strlcatf(detail, sizeof(detail), "%s, ",
3116 av_chroma_location_name(enc->chroma_sample_location));
3118 if (strlen(detail) > 1) {
3119 detail[strlen(detail) - 2] = 0;
3120 av_strlcatf(buf, buf_size, "%s)", detail);
3125 av_strlcat(buf, new_line ? separator : ", ", buf_size);
3127 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3129 enc->width, enc->height);
3131 if (av_log_get_level() >= AV_LOG_VERBOSE &&
3132 (enc->width != enc->coded_width ||
3133 enc->height != enc->coded_height))
3134 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3135 " (%dx%d)", enc->coded_width, enc->coded_height);
3137 if (enc->sample_aspect_ratio.num) {
3138 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3139 enc->width * enc->sample_aspect_ratio.num,
3140 enc->height * enc->sample_aspect_ratio.den,
3142 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3143 " [SAR %d:%d DAR %d:%d]",
3144 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
3145 display_aspect_ratio.num, display_aspect_ratio.den);
3147 if (av_log_get_level() >= AV_LOG_DEBUG) {
3148 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3149 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3151 enc->time_base.num / g, enc->time_base.den / g);
3155 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3156 ", q=%d-%d", enc->qmin, enc->qmax);
3159 case AVMEDIA_TYPE_AUDIO:
3160 av_strlcat(buf, separator, buf_size);
3162 if (enc->sample_rate) {
3163 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3164 "%d Hz, ", enc->sample_rate);
3166 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3167 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3168 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3169 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3171 if ( enc->bits_per_raw_sample > 0
3172 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
3173 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3174 " (%d bit)", enc->bits_per_raw_sample);
3176 case AVMEDIA_TYPE_DATA:
3177 if (av_log_get_level() >= AV_LOG_DEBUG) {
3178 int g = av_gcd(enc->time_base.num, enc->time_base.den);
3180 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3182 enc->time_base.num / g, enc->time_base.den / g);
3185 case AVMEDIA_TYPE_SUBTITLE:
3187 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3188 ", %dx%d", enc->width, enc->height);
3194 if (enc->flags & CODEC_FLAG_PASS1)
3195 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3197 if (enc->flags & CODEC_FLAG_PASS2)
3198 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3201 bitrate = get_bit_rate(enc);
3203 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3204 ", %d kb/s", bitrate / 1000);
3205 } else if (enc->rc_max_rate > 0) {
3206 snprintf(buf + strlen(buf), buf_size - strlen(buf),
3207 ", max. %d kb/s", enc->rc_max_rate / 1000);
3211 const char *av_get_profile_name(const AVCodec *codec, int profile)
3214 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3217 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3218 if (p->profile == profile)
3224 unsigned avcodec_version(void)
3226 // av_assert0(AV_CODEC_ID_V410==164);
3227 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
3228 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
3229 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3230 av_assert0(AV_CODEC_ID_SRT==94216);
3231 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
3233 av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC);
3234 av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR);
3235 av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC);
3236 av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC);
3237 av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT);
3238 return LIBAVCODEC_VERSION_INT;
3241 const char *avcodec_configuration(void)
3243 return FFMPEG_CONFIGURATION;
3246 const char *avcodec_license(void)
3248 #define LICENSE_PREFIX "libavcodec license: "
3249 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3252 void avcodec_flush_buffers(AVCodecContext *avctx)
3254 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3255 ff_thread_flush(avctx);
3256 else if (avctx->codec->flush)
3257 avctx->codec->flush(avctx);
3259 avctx->pts_correction_last_pts =
3260 avctx->pts_correction_last_dts = INT64_MIN;
3262 if (!avctx->refcounted_frames)
3263 av_frame_unref(avctx->internal->to_free);
3266 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
3269 case AV_CODEC_ID_8SVX_EXP:
3270 case AV_CODEC_ID_8SVX_FIB:
3271 case AV_CODEC_ID_ADPCM_CT:
3272 case AV_CODEC_ID_ADPCM_IMA_APC:
3273 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
3274 case AV_CODEC_ID_ADPCM_IMA_OKI:
3275 case AV_CODEC_ID_ADPCM_IMA_WS:
3276 case AV_CODEC_ID_ADPCM_G722:
3277 case AV_CODEC_ID_ADPCM_YAMAHA:
3279 case AV_CODEC_ID_DSD_LSBF:
3280 case AV_CODEC_ID_DSD_MSBF:
3281 case AV_CODEC_ID_DSD_LSBF_PLANAR:
3282 case AV_CODEC_ID_DSD_MSBF_PLANAR:
3283 case AV_CODEC_ID_PCM_ALAW:
3284 case AV_CODEC_ID_PCM_MULAW:
3285 case AV_CODEC_ID_PCM_S8:
3286 case AV_CODEC_ID_PCM_S8_PLANAR:
3287 case AV_CODEC_ID_PCM_U8:
3288 case AV_CODEC_ID_PCM_ZORK:
3290 case AV_CODEC_ID_PCM_S16BE:
3291 case AV_CODEC_ID_PCM_S16BE_PLANAR:
3292 case AV_CODEC_ID_PCM_S16LE:
3293 case AV_CODEC_ID_PCM_S16LE_PLANAR:
3294 case AV_CODEC_ID_PCM_U16BE:
3295 case AV_CODEC_ID_PCM_U16LE:
3297 case AV_CODEC_ID_PCM_S24DAUD:
3298 case AV_CODEC_ID_PCM_S24BE:
3299 case AV_CODEC_ID_PCM_S24LE:
3300 case AV_CODEC_ID_PCM_S24LE_PLANAR:
3301 case AV_CODEC_ID_PCM_U24BE:
3302 case AV_CODEC_ID_PCM_U24LE:
3304 case AV_CODEC_ID_PCM_S32BE:
3305 case AV_CODEC_ID_PCM_S32LE:
3306 case AV_CODEC_ID_PCM_S32LE_PLANAR:
3307 case AV_CODEC_ID_PCM_U32BE:
3308 case AV_CODEC_ID_PCM_U32LE:
3309 case AV_CODEC_ID_PCM_F32BE:
3310 case AV_CODEC_ID_PCM_F32LE:
3312 case AV_CODEC_ID_PCM_F64BE:
3313 case AV_CODEC_ID_PCM_F64LE:
3320 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
3322 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3323 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3324 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3325 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3326 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3327 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3328 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
3329 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
3330 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
3331 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
3332 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
3334 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3335 return AV_CODEC_ID_NONE;
3336 if (be < 0 || be > 1)
3338 return map[fmt][be];
3341 int av_get_bits_per_sample(enum AVCodecID codec_id)
3344 case AV_CODEC_ID_ADPCM_SBPRO_2:
3346 case AV_CODEC_ID_ADPCM_SBPRO_3:
3348 case AV_CODEC_ID_ADPCM_SBPRO_4:
3349 case AV_CODEC_ID_ADPCM_IMA_WAV:
3350 case AV_CODEC_ID_ADPCM_IMA_QT:
3351 case AV_CODEC_ID_ADPCM_SWF:
3352 case AV_CODEC_ID_ADPCM_MS:
3355 return av_get_exact_bits_per_sample(codec_id);
3359 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3361 int id, sr, ch, ba, tag, bps;
3363 id = avctx->codec_id;
3364 sr = avctx->sample_rate;
3365 ch = avctx->channels;
3366 ba = avctx->block_align;
3367 tag = avctx->codec_tag;
3368 bps = av_get_exact_bits_per_sample(avctx->codec_id);
3370 /* codecs with an exact constant bits per sample */
3371 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3372 return (frame_bytes * 8LL) / (bps * ch);
3373 bps = avctx->bits_per_coded_sample;
3375 /* codecs with a fixed packet duration */
3377 case AV_CODEC_ID_ADPCM_ADX: return 32;
3378 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3379 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3380 case AV_CODEC_ID_AMR_NB:
3381 case AV_CODEC_ID_EVRC:
3382 case AV_CODEC_ID_GSM:
3383 case AV_CODEC_ID_QCELP:
3384 case AV_CODEC_ID_RA_288: return 160;
3385 case AV_CODEC_ID_AMR_WB:
3386 case AV_CODEC_ID_GSM_MS: return 320;
3387 case AV_CODEC_ID_MP1: return 384;
3388 case AV_CODEC_ID_ATRAC1: return 512;
3389 case AV_CODEC_ID_ATRAC3: return 1024;
3390 case AV_CODEC_ID_ATRAC3P: return 2048;
3391 case AV_CODEC_ID_MP2:
3392 case AV_CODEC_ID_MUSEPACK7: return 1152;
3393 case AV_CODEC_ID_AC3: return 1536;
3397 /* calc from sample rate */
3398 if (id == AV_CODEC_ID_TTA)
3399 return 256 * sr / 245;
3402 /* calc from sample rate and channels */
3403 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3404 return (480 << (sr / 22050)) / ch;
3409 /* calc from block_align */
3410 if (id == AV_CODEC_ID_SIPR) {
3412 case 20: return 160;
3413 case 19: return 144;
3414 case 29: return 288;
3415 case 37: return 480;
3417 } else if (id == AV_CODEC_ID_ILBC) {
3419 case 38: return 160;
3420 case 50: return 240;
3425 if (frame_bytes > 0) {
3426 /* calc from frame_bytes only */
3427 if (id == AV_CODEC_ID_TRUESPEECH)
3428 return 240 * (frame_bytes / 32);
3429 if (id == AV_CODEC_ID_NELLYMOSER)
3430 return 256 * (frame_bytes / 64);
3431 if (id == AV_CODEC_ID_RA_144)
3432 return 160 * (frame_bytes / 20);
3433 if (id == AV_CODEC_ID_G723_1)
3434 return 240 * (frame_bytes / 24);
3437 /* calc from frame_bytes and bits_per_coded_sample */
3438 if (id == AV_CODEC_ID_ADPCM_G726)
3439 return frame_bytes * 8 / bps;
3443 /* calc from frame_bytes and channels */
3445 case AV_CODEC_ID_ADPCM_AFC:
3446 return frame_bytes / (9 * ch) * 16;
3447 case AV_CODEC_ID_ADPCM_DTK:
3448 return frame_bytes / (16 * ch) * 28;
3449 case AV_CODEC_ID_ADPCM_4XM:
3450 case AV_CODEC_ID_ADPCM_IMA_ISS:
3451 return (frame_bytes - 4 * ch) * 2 / ch;
3452 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
3453 return (frame_bytes - 4) * 2 / ch;
3454 case AV_CODEC_ID_ADPCM_IMA_AMV:
3455 return (frame_bytes - 8) * 2 / ch;
3456 case AV_CODEC_ID_ADPCM_THP:
3457 case AV_CODEC_ID_ADPCM_THP_LE:
3458 if (avctx->extradata)
3459 return frame_bytes * 14 / (8 * ch);
3461 case AV_CODEC_ID_ADPCM_XA:
3462 return (frame_bytes / 128) * 224 / ch;
3463 case AV_CODEC_ID_INTERPLAY_DPCM:
3464 return (frame_bytes - 6 - ch) / ch;
3465 case AV_CODEC_ID_ROQ_DPCM:
3466 return (frame_bytes - 8) / ch;
3467 case AV_CODEC_ID_XAN_DPCM:
3468 return (frame_bytes - 2 * ch) / ch;
3469 case AV_CODEC_ID_MACE3:
3470 return 3 * frame_bytes / ch;
3471 case AV_CODEC_ID_MACE6:
3472 return 6 * frame_bytes / ch;
3473 case AV_CODEC_ID_PCM_LXF:
3474 return 2 * (frame_bytes / (5 * ch));
3475 case AV_CODEC_ID_IAC:
3476 case AV_CODEC_ID_IMC:
3477 return 4 * frame_bytes / ch;
3481 /* calc from frame_bytes, channels, and codec_tag */
3482 if (id == AV_CODEC_ID_SOL_DPCM) {
3484 return frame_bytes / ch;
3486 return frame_bytes * 2 / ch;
3491 /* calc from frame_bytes, channels, and block_align */
3492 int blocks = frame_bytes / ba;
3493 switch (avctx->codec_id) {
3494 case AV_CODEC_ID_ADPCM_IMA_WAV:
3495 if (bps < 2 || bps > 5)
3497 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3498 case AV_CODEC_ID_ADPCM_IMA_DK3:
3499 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3500 case AV_CODEC_ID_ADPCM_IMA_DK4:
3501 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3502 case AV_CODEC_ID_ADPCM_IMA_RAD:
3503 return blocks * ((ba - 4 * ch) * 2 / ch);
3504 case AV_CODEC_ID_ADPCM_MS:
3505 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3510 /* calc from frame_bytes, channels, and bits_per_coded_sample */
3511 switch (avctx->codec_id) {
3512 case AV_CODEC_ID_PCM_DVD:
3515 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3516 case AV_CODEC_ID_PCM_BLURAY:
3519 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3520 case AV_CODEC_ID_S302M:
3521 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3527 /* Fall back on using frame_size */
3528 if (avctx->frame_size > 1 && frame_bytes)
3529 return avctx->frame_size;
3531 //For WMA we currently have no other means to calculate duration thus we
3532 //do it here by assuming CBR, which is true for all known cases.
3533 if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
3534 if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
3535 return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
3542 int ff_thread_init(AVCodecContext *s)
3549 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3563 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3566 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3570 #if FF_API_MISSING_SAMPLE
3571 FF_DISABLE_DEPRECATION_WARNINGS
3572 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3574 av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3575 "version to the newest one from Git. If the problem still "
3576 "occurs, it means that your file has a feature which has not "
3577 "been implemented.\n", feature);
3579 av_log_ask_for_sample(avc, NULL);
3582 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3584 va_list argument_list;
3586 va_start(argument_list, msg);
3589 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3590 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3591 "of this file to ftp://upload.ffmpeg.org/incoming/ "
3592 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3594 va_end(argument_list);
3596 FF_ENABLE_DEPRECATION_WARNINGS
3597 #endif /* FF_API_MISSING_SAMPLE */
3599 static AVHWAccel *first_hwaccel = NULL;
3600 static AVHWAccel **last_hwaccel = &first_hwaccel;
3602 void av_register_hwaccel(AVHWAccel *hwaccel)
3604 AVHWAccel **p = last_hwaccel;
3605 hwaccel->next = NULL;
3606 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3608 last_hwaccel = &hwaccel->next;
3611 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
3613 return hwaccel ? hwaccel->next : first_hwaccel;
3616 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3619 // There is no good way to rollback a failure to destroy the
3620 // mutex, so we ignore failures.
3621 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
3622 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
3625 avformat_mutex = NULL;
3629 void *new_codec_mutex = NULL;
3630 void *new_avformat_mutex = NULL;
3632 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3633 return err > 0 ? AVERROR_UNKNOWN : err;
3635 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3636 // Ignore failures to destroy the newly created mutex.
3637 cb(&new_codec_mutex, AV_LOCK_DESTROY);
3638 return err > 0 ? AVERROR_UNKNOWN : err;
3641 codec_mutex = new_codec_mutex;
3642 avformat_mutex = new_avformat_mutex;
3648 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3651 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
3655 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1 &&
3656 !(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE)) {
3657 av_log(log_ctx, AV_LOG_ERROR,
3658 "Insufficient thread locking. At least %d threads are "
3659 "calling avcodec_open2() at the same time right now.\n",
3660 entangled_thread_counter);
3662 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3663 ff_avcodec_locked = 1;
3664 ff_unlock_avcodec();
3665 return AVERROR(EINVAL);
3667 av_assert0(!ff_avcodec_locked);
3668 ff_avcodec_locked = 1;
3672 int ff_unlock_avcodec(void)
3674 av_assert0(ff_avcodec_locked);
3675 ff_avcodec_locked = 0;
3676 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
3678 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
3685 int avpriv_lock_avformat(void)
3688 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
3694 int avpriv_unlock_avformat(void)
3697 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
3703 unsigned int avpriv_toupper4(unsigned int x)
3705 return av_toupper(x & 0xFF) +
3706 (av_toupper((x >> 8) & 0xFF) << 8) +
3707 (av_toupper((x >> 16) & 0xFF) << 16) +
3708 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3711 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
3715 dst->owner = src->owner;
3717 ret = av_frame_ref(dst->f, src->f);
3721 av_assert0(!dst->progress);
3723 if (src->progress &&
3724 !(dst->progress = av_buffer_ref(src->progress))) {
3725 ff_thread_release_buffer(dst->owner, dst);
3726 return AVERROR(ENOMEM);
3734 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
3736 return ff_get_format(avctx, fmt);
3739 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
3742 return ff_get_buffer(avctx, f->f, flags);
3745 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
3748 av_frame_unref(f->f);
3751 void ff_thread_finish_setup(AVCodecContext *avctx)
3755 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3759 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3763 int ff_thread_can_start_frame(AVCodecContext *avctx)
3768 int ff_alloc_entries(AVCodecContext *avctx, int count)
3773 void ff_reset_entries(AVCodecContext *avctx)
3777 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3781 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3787 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
3789 AVCodec *c= avcodec_find_decoder(codec_id);
3791 c= avcodec_find_encoder(codec_id);
3795 if (codec_id <= AV_CODEC_ID_NONE)
3796 return AVMEDIA_TYPE_UNKNOWN;
3797 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
3798 return AVMEDIA_TYPE_VIDEO;
3799 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
3800 return AVMEDIA_TYPE_AUDIO;
3801 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
3802 return AVMEDIA_TYPE_SUBTITLE;
3804 return AVMEDIA_TYPE_UNKNOWN;
3807 int avcodec_is_open(AVCodecContext *s)
3809 return !!s->internal;
3812 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3817 ret = av_bprint_finalize(buf, &str);
3820 if (!av_bprint_is_complete(buf)) {
3822 return AVERROR(ENOMEM);
3825 avctx->extradata = str;
3826 /* Note: the string is NUL terminated (so extradata can be read as a
3827 * string), but the ending character is not accounted in the size (in
3828 * binary formats you are likely not supposed to mux that character). When
3829 * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE
3831 avctx->extradata_size = buf->len;
3835 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3837 uint32_t *av_restrict state)
3841 av_assert0(p <= end);
3845 for (i = 0; i < 3; i++) {
3846 uint32_t tmp = *state << 8;
3847 *state = tmp + *(p++);
3848 if (tmp == 0x100 || p == end)
3853 if (p[-1] > 1 ) p += 3;
3854 else if (p[-2] ) p += 2;
3855 else if (p[-3]|(p[-1]-1)) p++;
3862 p = FFMIN(p, end) - 4;
3863 *state = AV_RB32(p);