3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "libavutil/atomic.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/bprint.h"
34 #include "libavutil/channel_layout.h"
35 #include "libavutil/crc.h"
36 #include "libavutil/frame.h"
37 #include "libavutil/hwcontext.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/mem_internal.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/imgutils.h"
43 #include "libavutil/samplefmt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/thread.h"
49 #include "libavutil/opt.h"
51 #include "mpegvideo.h"
53 #include "frame_thread_encoder.h"
56 #include "bytestream.h"
60 #include <stdatomic.h>
67 #include "libavutil/ffversion.h"
68 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
70 volatile int ff_avcodec_locked;
71 static atomic_int entangled_thread_counter = ATOMIC_VAR_INIT(0);
72 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
73 static AVMutex avformat_mutex = AV_MUTEX_INITIALIZER;
75 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
78 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
83 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
84 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
87 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
90 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
95 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
96 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
99 /* encoder management */
100 static AVCodec *first_avcodec = NULL;
101 static AVCodec **last_avcodec = &first_avcodec;
103 AVCodec *av_codec_next(const AVCodec *c)
108 return first_avcodec;
111 static av_cold void avcodec_init(void)
113 static int initialized = 0;
115 if (initialized != 0)
120 ff_me_cmp_init_static();
123 int av_codec_is_encoder(const AVCodec *codec)
125 return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
128 int av_codec_is_decoder(const AVCodec *codec)
130 return codec && (codec->decode || codec->receive_frame);
133 av_cold void avcodec_register(AVCodec *codec)
140 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
142 last_avcodec = &codec->next;
144 if (codec->init_static_data)
145 codec->init_static_data(codec);
148 int ff_set_dimensions(AVCodecContext *s, int width, int height)
150 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
155 s->coded_width = width;
156 s->coded_height = height;
157 s->width = AV_CEIL_RSHIFT(width, s->lowres);
158 s->height = AV_CEIL_RSHIFT(height, s->lowres);
163 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
165 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
168 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
170 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
173 avctx->sample_aspect_ratio = sar;
178 int ff_side_data_update_matrix_encoding(AVFrame *frame,
179 enum AVMatrixEncoding matrix_encoding)
181 AVFrameSideData *side_data;
182 enum AVMatrixEncoding *data;
184 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
186 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
187 sizeof(enum AVMatrixEncoding));
190 return AVERROR(ENOMEM);
192 data = (enum AVMatrixEncoding*)side_data->data;
193 *data = matrix_encoding;
198 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
199 int linesize_align[AV_NUM_DATA_POINTERS])
204 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
207 w_align = 1 << desc->log2_chroma_w;
208 h_align = 1 << desc->log2_chroma_h;
211 switch (s->pix_fmt) {
212 case AV_PIX_FMT_YUV420P:
213 case AV_PIX_FMT_YUYV422:
214 case AV_PIX_FMT_YVYU422:
215 case AV_PIX_FMT_UYVY422:
216 case AV_PIX_FMT_YUV422P:
217 case AV_PIX_FMT_YUV440P:
218 case AV_PIX_FMT_YUV444P:
219 case AV_PIX_FMT_GBRP:
220 case AV_PIX_FMT_GBRAP:
221 case AV_PIX_FMT_GRAY8:
222 case AV_PIX_FMT_GRAY16BE:
223 case AV_PIX_FMT_GRAY16LE:
224 case AV_PIX_FMT_YUVJ420P:
225 case AV_PIX_FMT_YUVJ422P:
226 case AV_PIX_FMT_YUVJ440P:
227 case AV_PIX_FMT_YUVJ444P:
228 case AV_PIX_FMT_YUVA420P:
229 case AV_PIX_FMT_YUVA422P:
230 case AV_PIX_FMT_YUVA444P:
231 case AV_PIX_FMT_YUV420P9LE:
232 case AV_PIX_FMT_YUV420P9BE:
233 case AV_PIX_FMT_YUV420P10LE:
234 case AV_PIX_FMT_YUV420P10BE:
235 case AV_PIX_FMT_YUV420P12LE:
236 case AV_PIX_FMT_YUV420P12BE:
237 case AV_PIX_FMT_YUV420P14LE:
238 case AV_PIX_FMT_YUV420P14BE:
239 case AV_PIX_FMT_YUV420P16LE:
240 case AV_PIX_FMT_YUV420P16BE:
241 case AV_PIX_FMT_YUVA420P9LE:
242 case AV_PIX_FMT_YUVA420P9BE:
243 case AV_PIX_FMT_YUVA420P10LE:
244 case AV_PIX_FMT_YUVA420P10BE:
245 case AV_PIX_FMT_YUVA420P16LE:
246 case AV_PIX_FMT_YUVA420P16BE:
247 case AV_PIX_FMT_YUV422P9LE:
248 case AV_PIX_FMT_YUV422P9BE:
249 case AV_PIX_FMT_YUV422P10LE:
250 case AV_PIX_FMT_YUV422P10BE:
251 case AV_PIX_FMT_YUV422P12LE:
252 case AV_PIX_FMT_YUV422P12BE:
253 case AV_PIX_FMT_YUV422P14LE:
254 case AV_PIX_FMT_YUV422P14BE:
255 case AV_PIX_FMT_YUV422P16LE:
256 case AV_PIX_FMT_YUV422P16BE:
257 case AV_PIX_FMT_YUVA422P9LE:
258 case AV_PIX_FMT_YUVA422P9BE:
259 case AV_PIX_FMT_YUVA422P10LE:
260 case AV_PIX_FMT_YUVA422P10BE:
261 case AV_PIX_FMT_YUVA422P16LE:
262 case AV_PIX_FMT_YUVA422P16BE:
263 case AV_PIX_FMT_YUV440P10LE:
264 case AV_PIX_FMT_YUV440P10BE:
265 case AV_PIX_FMT_YUV440P12LE:
266 case AV_PIX_FMT_YUV440P12BE:
267 case AV_PIX_FMT_YUV444P9LE:
268 case AV_PIX_FMT_YUV444P9BE:
269 case AV_PIX_FMT_YUV444P10LE:
270 case AV_PIX_FMT_YUV444P10BE:
271 case AV_PIX_FMT_YUV444P12LE:
272 case AV_PIX_FMT_YUV444P12BE:
273 case AV_PIX_FMT_YUV444P14LE:
274 case AV_PIX_FMT_YUV444P14BE:
275 case AV_PIX_FMT_YUV444P16LE:
276 case AV_PIX_FMT_YUV444P16BE:
277 case AV_PIX_FMT_YUVA444P9LE:
278 case AV_PIX_FMT_YUVA444P9BE:
279 case AV_PIX_FMT_YUVA444P10LE:
280 case AV_PIX_FMT_YUVA444P10BE:
281 case AV_PIX_FMT_YUVA444P16LE:
282 case AV_PIX_FMT_YUVA444P16BE:
283 case AV_PIX_FMT_GBRP9LE:
284 case AV_PIX_FMT_GBRP9BE:
285 case AV_PIX_FMT_GBRP10LE:
286 case AV_PIX_FMT_GBRP10BE:
287 case AV_PIX_FMT_GBRP12LE:
288 case AV_PIX_FMT_GBRP12BE:
289 case AV_PIX_FMT_GBRP14LE:
290 case AV_PIX_FMT_GBRP14BE:
291 case AV_PIX_FMT_GBRP16LE:
292 case AV_PIX_FMT_GBRP16BE:
293 case AV_PIX_FMT_GBRAP12LE:
294 case AV_PIX_FMT_GBRAP12BE:
295 case AV_PIX_FMT_GBRAP16LE:
296 case AV_PIX_FMT_GBRAP16BE:
297 w_align = 16; //FIXME assume 16 pixel per macroblock
298 h_align = 16 * 2; // interlaced needs 2 macroblocks height
300 case AV_PIX_FMT_YUV411P:
301 case AV_PIX_FMT_YUVJ411P:
302 case AV_PIX_FMT_UYYVYY411:
306 case AV_PIX_FMT_YUV410P:
307 if (s->codec_id == AV_CODEC_ID_SVQ1) {
312 case AV_PIX_FMT_RGB555:
313 if (s->codec_id == AV_CODEC_ID_RPZA) {
317 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
322 case AV_PIX_FMT_PAL8:
323 case AV_PIX_FMT_BGR8:
324 case AV_PIX_FMT_RGB8:
325 if (s->codec_id == AV_CODEC_ID_SMC ||
326 s->codec_id == AV_CODEC_ID_CINEPAK) {
330 if (s->codec_id == AV_CODEC_ID_JV ||
331 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
336 case AV_PIX_FMT_BGR24:
337 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
338 (s->codec_id == AV_CODEC_ID_ZLIB)) {
343 case AV_PIX_FMT_RGB24:
344 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
353 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
354 w_align = FFMAX(w_align, 8);
357 *width = FFALIGN(*width, w_align);
358 *height = FFALIGN(*height, h_align);
359 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
360 // some of the optimized chroma MC reads one line too much
361 // which is also done in mpeg decoders with lowres > 0
364 // H.264 uses edge emulation for out of frame motion vectors, for this
365 // it requires a temporary area large enough to hold a 21x21 block,
366 // increasing witdth ensure that the temporary area is large enough,
367 // the next rounded up width is 32
368 *width = FFMAX(*width, 32);
371 for (i = 0; i < 4; i++)
372 linesize_align[i] = STRIDE_ALIGN;
375 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
377 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
378 int chroma_shift = desc->log2_chroma_w;
379 int linesize_align[AV_NUM_DATA_POINTERS];
382 avcodec_align_dimensions2(s, width, height, linesize_align);
383 align = FFMAX(linesize_align[0], linesize_align[3]);
384 linesize_align[1] <<= chroma_shift;
385 linesize_align[2] <<= chroma_shift;
386 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
387 *width = FFALIGN(*width, align);
390 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
392 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
393 return AVERROR(EINVAL);
396 *xpos = (pos&1) * 128;
397 *ypos = ((pos>>1)^(pos<4)) * 128;
402 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
406 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
407 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
410 return AVCHROMA_LOC_UNSPECIFIED;
413 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
414 enum AVSampleFormat sample_fmt, const uint8_t *buf,
415 int buf_size, int align)
417 int ch, planar, needed_size, ret = 0;
419 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
420 frame->nb_samples, sample_fmt,
422 if (buf_size < needed_size)
423 return AVERROR(EINVAL);
425 planar = av_sample_fmt_is_planar(sample_fmt);
426 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
427 if (!(frame->extended_data = av_mallocz_array(nb_channels,
428 sizeof(*frame->extended_data))))
429 return AVERROR(ENOMEM);
431 frame->extended_data = frame->data;
434 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
435 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
436 sample_fmt, align)) < 0) {
437 if (frame->extended_data != frame->data)
438 av_freep(&frame->extended_data);
441 if (frame->extended_data != frame->data) {
442 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
443 frame->data[ch] = frame->extended_data[ch];
449 void ff_color_frame(AVFrame *frame, const int c[4])
451 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
454 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
456 for (p = 0; p<desc->nb_components; p++) {
457 uint8_t *dst = frame->data[p];
458 int is_chroma = p == 1 || p == 2;
459 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
460 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
461 for (y = 0; y < height; y++) {
462 if (desc->comp[0].depth >= 9) {
463 for (x = 0; x<bytes; x++)
464 ((uint16_t*)dst)[x] = c[p];
466 memset(dst, c[p], bytes);
467 dst += frame->linesize[p];
472 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
476 for (i = 0; i < count; i++) {
477 int r = func(c, (char *)arg + i * size);
485 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
489 for (i = 0; i < count; i++) {
490 int r = func(c, arg, i, 0);
498 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
501 while (tags->pix_fmt >= 0) {
502 if (tags->fourcc == fourcc)
503 return tags->pix_fmt;
506 return AV_PIX_FMT_NONE;
509 #if FF_API_CODEC_GET_SET
510 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
511 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
512 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
513 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
514 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
516 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
518 return codec->properties;
521 int av_codec_get_max_lowres(const AVCodec *codec)
523 return codec->max_lowres;
527 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
528 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
531 static int64_t get_bit_rate(AVCodecContext *ctx)
536 switch (ctx->codec_type) {
537 case AVMEDIA_TYPE_VIDEO:
538 case AVMEDIA_TYPE_DATA:
539 case AVMEDIA_TYPE_SUBTITLE:
540 case AVMEDIA_TYPE_ATTACHMENT:
541 bit_rate = ctx->bit_rate;
543 case AVMEDIA_TYPE_AUDIO:
544 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
545 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
554 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
558 ff_unlock_avcodec(codec);
560 ret = avcodec_open2(avctx, codec, options);
562 ff_lock_avcodec(avctx, codec);
566 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
569 AVDictionary *tmp = NULL;
570 const AVPixFmtDescriptor *pixdesc;
572 if (avcodec_is_open(avctx))
575 if ((!codec && !avctx->codec)) {
576 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
577 return AVERROR(EINVAL);
579 if ((codec && avctx->codec && codec != avctx->codec)) {
580 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
581 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
582 return AVERROR(EINVAL);
585 codec = avctx->codec;
587 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
588 return AVERROR(EINVAL);
591 av_dict_copy(&tmp, *options, 0);
593 ret = ff_lock_avcodec(avctx, codec);
597 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
598 if (!avctx->internal) {
599 ret = AVERROR(ENOMEM);
603 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
604 if (!avctx->internal->pool) {
605 ret = AVERROR(ENOMEM);
609 avctx->internal->to_free = av_frame_alloc();
610 if (!avctx->internal->to_free) {
611 ret = AVERROR(ENOMEM);
615 avctx->internal->compat_decode_frame = av_frame_alloc();
616 if (!avctx->internal->compat_decode_frame) {
617 ret = AVERROR(ENOMEM);
621 avctx->internal->buffer_frame = av_frame_alloc();
622 if (!avctx->internal->buffer_frame) {
623 ret = AVERROR(ENOMEM);
627 avctx->internal->buffer_pkt = av_packet_alloc();
628 if (!avctx->internal->buffer_pkt) {
629 ret = AVERROR(ENOMEM);
633 avctx->internal->ds.in_pkt = av_packet_alloc();
634 if (!avctx->internal->ds.in_pkt) {
635 ret = AVERROR(ENOMEM);
639 avctx->internal->last_pkt_props = av_packet_alloc();
640 if (!avctx->internal->last_pkt_props) {
641 ret = AVERROR(ENOMEM);
645 avctx->internal->skip_samples_multiplier = 1;
647 if (codec->priv_data_size > 0) {
648 if (!avctx->priv_data) {
649 avctx->priv_data = av_mallocz(codec->priv_data_size);
650 if (!avctx->priv_data) {
651 ret = AVERROR(ENOMEM);
654 if (codec->priv_class) {
655 *(const AVClass **)avctx->priv_data = codec->priv_class;
656 av_opt_set_defaults(avctx->priv_data);
659 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
662 avctx->priv_data = NULL;
664 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
667 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
668 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
669 ret = AVERROR(EINVAL);
673 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
674 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
675 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
676 if (avctx->coded_width && avctx->coded_height)
677 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
678 else if (avctx->width && avctx->height)
679 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
684 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
685 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
686 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
687 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
688 ff_set_dimensions(avctx, 0, 0);
691 if (avctx->width > 0 && avctx->height > 0) {
692 if (av_image_check_sar(avctx->width, avctx->height,
693 avctx->sample_aspect_ratio) < 0) {
694 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
695 avctx->sample_aspect_ratio.num,
696 avctx->sample_aspect_ratio.den);
697 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
701 /* if the decoder init function was already called previously,
702 * free the already allocated subtitle_header before overwriting it */
703 if (av_codec_is_decoder(codec))
704 av_freep(&avctx->subtitle_header);
706 if (avctx->channels > FF_SANE_NB_CHANNELS) {
707 ret = AVERROR(EINVAL);
711 avctx->codec = codec;
712 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
713 avctx->codec_id == AV_CODEC_ID_NONE) {
714 avctx->codec_type = codec->type;
715 avctx->codec_id = codec->id;
717 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
718 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
719 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
720 ret = AVERROR(EINVAL);
723 avctx->frame_number = 0;
724 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
726 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
727 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
728 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
730 av_log(avctx, AV_LOG_ERROR,
731 "The %s '%s' is experimental but experimental codecs are not enabled, "
732 "add '-strict %d' if you want to use it.\n",
733 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
734 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
735 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
736 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
737 codec_string, codec2->name);
738 ret = AVERROR_EXPERIMENTAL;
742 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
743 (!avctx->time_base.num || !avctx->time_base.den)) {
744 avctx->time_base.num = 1;
745 avctx->time_base.den = avctx->sample_rate;
749 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
751 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
752 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
753 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
754 ff_lock_avcodec(avctx, codec);
760 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
761 ret = ff_thread_init(avctx);
766 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
767 avctx->thread_count = 1;
769 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
770 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
771 avctx->codec->max_lowres);
772 avctx->lowres = avctx->codec->max_lowres;
775 if (av_codec_is_encoder(avctx->codec)) {
777 #if FF_API_CODED_FRAME
778 FF_DISABLE_DEPRECATION_WARNINGS
779 avctx->coded_frame = av_frame_alloc();
780 if (!avctx->coded_frame) {
781 ret = AVERROR(ENOMEM);
784 FF_ENABLE_DEPRECATION_WARNINGS
787 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
788 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
789 ret = AVERROR(EINVAL);
793 if (avctx->codec->sample_fmts) {
794 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
795 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
797 if (avctx->channels == 1 &&
798 av_get_planar_sample_fmt(avctx->sample_fmt) ==
799 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
800 avctx->sample_fmt = avctx->codec->sample_fmts[i];
804 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
806 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
807 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
808 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
809 ret = AVERROR(EINVAL);
813 if (avctx->codec->pix_fmts) {
814 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
815 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
817 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
818 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
819 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
821 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
822 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
823 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
824 ret = AVERROR(EINVAL);
827 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
828 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
829 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
830 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
831 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
832 avctx->color_range = AVCOL_RANGE_JPEG;
834 if (avctx->codec->supported_samplerates) {
835 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
836 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
838 if (avctx->codec->supported_samplerates[i] == 0) {
839 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
841 ret = AVERROR(EINVAL);
845 if (avctx->sample_rate < 0) {
846 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
848 ret = AVERROR(EINVAL);
851 if (avctx->codec->channel_layouts) {
852 if (!avctx->channel_layout) {
853 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
855 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
856 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
858 if (avctx->codec->channel_layouts[i] == 0) {
860 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
861 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
862 ret = AVERROR(EINVAL);
867 if (avctx->channel_layout && avctx->channels) {
868 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
869 if (channels != avctx->channels) {
871 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
872 av_log(avctx, AV_LOG_ERROR,
873 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
874 buf, channels, avctx->channels);
875 ret = AVERROR(EINVAL);
878 } else if (avctx->channel_layout) {
879 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
881 if (avctx->channels < 0) {
882 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
884 ret = AVERROR(EINVAL);
887 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
888 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
889 if ( avctx->bits_per_raw_sample < 0
890 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
891 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
892 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
893 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
895 if (avctx->width <= 0 || avctx->height <= 0) {
896 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
897 ret = AVERROR(EINVAL);
901 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
902 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
903 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
906 if (!avctx->rc_initial_buffer_occupancy)
907 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
909 if (avctx->ticks_per_frame && avctx->time_base.num &&
910 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
911 av_log(avctx, AV_LOG_ERROR,
912 "ticks_per_frame %d too large for the timebase %d/%d.",
913 avctx->ticks_per_frame,
914 avctx->time_base.num,
915 avctx->time_base.den);
919 if (avctx->hw_frames_ctx) {
920 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
921 if (frames_ctx->format != avctx->pix_fmt) {
922 av_log(avctx, AV_LOG_ERROR,
923 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
924 ret = AVERROR(EINVAL);
927 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
928 avctx->sw_pix_fmt != frames_ctx->sw_format) {
929 av_log(avctx, AV_LOG_ERROR,
930 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
931 "and AVHWFramesContext.sw_format (%s)\n",
932 av_get_pix_fmt_name(avctx->sw_pix_fmt),
933 av_get_pix_fmt_name(frames_ctx->sw_format));
934 ret = AVERROR(EINVAL);
937 avctx->sw_pix_fmt = frames_ctx->sw_format;
941 avctx->pts_correction_num_faulty_pts =
942 avctx->pts_correction_num_faulty_dts = 0;
943 avctx->pts_correction_last_pts =
944 avctx->pts_correction_last_dts = INT64_MIN;
946 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
947 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
948 av_log(avctx, AV_LOG_WARNING,
949 "gray decoding requested but not enabled at configuration time\n");
951 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
952 || avctx->internal->frame_thread_encoder)) {
953 ret = avctx->codec->init(avctx);
961 if (av_codec_is_decoder(avctx->codec)) {
962 if (!avctx->bit_rate)
963 avctx->bit_rate = get_bit_rate(avctx);
964 /* validate channel layout from the decoder */
965 if (avctx->channel_layout) {
966 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
967 if (!avctx->channels)
968 avctx->channels = channels;
969 else if (channels != avctx->channels) {
971 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
972 av_log(avctx, AV_LOG_WARNING,
973 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
974 "ignoring specified channel layout\n",
975 buf, channels, avctx->channels);
976 avctx->channel_layout = 0;
979 if (avctx->channels && avctx->channels < 0 ||
980 avctx->channels > FF_SANE_NB_CHANNELS) {
981 ret = AVERROR(EINVAL);
984 if (avctx->sub_charenc) {
985 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
986 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
987 "supported with subtitles codecs\n");
988 ret = AVERROR(EINVAL);
990 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
991 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
992 "subtitles character encoding will be ignored\n",
993 avctx->codec_descriptor->name);
994 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
996 /* input character encoding is set for a text based subtitle
997 * codec at this point */
998 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
999 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1001 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1003 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1004 if (cd == (iconv_t)-1) {
1005 ret = AVERROR(errno);
1006 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1007 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1012 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1013 "conversion needs a libavcodec built with iconv support "
1014 "for this codec\n");
1015 ret = AVERROR(ENOSYS);
1022 #if FF_API_AVCTX_TIMEBASE
1023 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1024 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1027 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1028 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1032 ff_unlock_avcodec(codec);
1034 av_dict_free(options);
1041 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1042 avctx->codec->close(avctx);
1044 if (codec->priv_class && codec->priv_data_size)
1045 av_opt_free(avctx->priv_data);
1048 #if FF_API_CODED_FRAME
1049 FF_DISABLE_DEPRECATION_WARNINGS
1050 av_frame_free(&avctx->coded_frame);
1051 FF_ENABLE_DEPRECATION_WARNINGS
1055 av_freep(&avctx->priv_data);
1056 if (avctx->internal) {
1057 av_frame_free(&avctx->internal->to_free);
1058 av_frame_free(&avctx->internal->compat_decode_frame);
1059 av_frame_free(&avctx->internal->buffer_frame);
1060 av_packet_free(&avctx->internal->buffer_pkt);
1061 av_packet_free(&avctx->internal->last_pkt_props);
1063 av_packet_free(&avctx->internal->ds.in_pkt);
1065 av_freep(&avctx->internal->pool);
1067 av_freep(&avctx->internal);
1068 avctx->codec = NULL;
1072 void avsubtitle_free(AVSubtitle *sub)
1076 for (i = 0; i < sub->num_rects; i++) {
1077 av_freep(&sub->rects[i]->data[0]);
1078 av_freep(&sub->rects[i]->data[1]);
1079 av_freep(&sub->rects[i]->data[2]);
1080 av_freep(&sub->rects[i]->data[3]);
1081 av_freep(&sub->rects[i]->text);
1082 av_freep(&sub->rects[i]->ass);
1083 av_freep(&sub->rects[i]);
1086 av_freep(&sub->rects);
1088 memset(sub, 0, sizeof(AVSubtitle));
1091 av_cold int avcodec_close(AVCodecContext *avctx)
1098 if (avcodec_is_open(avctx)) {
1099 FramePool *pool = avctx->internal->pool;
1100 if (CONFIG_FRAME_THREAD_ENCODER &&
1101 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1102 ff_frame_thread_encoder_free(avctx);
1104 if (HAVE_THREADS && avctx->internal->thread_ctx)
1105 ff_thread_free(avctx);
1106 if (avctx->codec && avctx->codec->close)
1107 avctx->codec->close(avctx);
1108 avctx->internal->byte_buffer_size = 0;
1109 av_freep(&avctx->internal->byte_buffer);
1110 av_frame_free(&avctx->internal->to_free);
1111 av_frame_free(&avctx->internal->compat_decode_frame);
1112 av_frame_free(&avctx->internal->buffer_frame);
1113 av_packet_free(&avctx->internal->buffer_pkt);
1114 av_packet_free(&avctx->internal->last_pkt_props);
1116 av_packet_free(&avctx->internal->ds.in_pkt);
1118 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1119 av_buffer_pool_uninit(&pool->pools[i]);
1120 av_freep(&avctx->internal->pool);
1122 if (avctx->hwaccel && avctx->hwaccel->uninit)
1123 avctx->hwaccel->uninit(avctx);
1124 av_freep(&avctx->internal->hwaccel_priv_data);
1126 ff_decode_bsfs_uninit(avctx);
1128 av_freep(&avctx->internal);
1131 for (i = 0; i < avctx->nb_coded_side_data; i++)
1132 av_freep(&avctx->coded_side_data[i].data);
1133 av_freep(&avctx->coded_side_data);
1134 avctx->nb_coded_side_data = 0;
1136 av_buffer_unref(&avctx->hw_frames_ctx);
1137 av_buffer_unref(&avctx->hw_device_ctx);
1139 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1140 av_opt_free(avctx->priv_data);
1142 av_freep(&avctx->priv_data);
1143 if (av_codec_is_encoder(avctx->codec)) {
1144 av_freep(&avctx->extradata);
1145 #if FF_API_CODED_FRAME
1146 FF_DISABLE_DEPRECATION_WARNINGS
1147 av_frame_free(&avctx->coded_frame);
1148 FF_ENABLE_DEPRECATION_WARNINGS
1151 avctx->codec = NULL;
1152 avctx->active_thread_type = 0;
1157 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
1160 //This is for future deprecatec codec ids, its empty since
1161 //last major bump but will fill up again over time, please don't remove it
1162 default : return id;
1166 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
1168 AVCodec *p, *experimental = NULL;
1170 id= remap_deprecated_codec_id(id);
1172 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
1174 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
1181 return experimental;
1184 AVCodec *avcodec_find_encoder(enum AVCodecID id)
1186 return find_encdec(id, 1);
1189 AVCodec *avcodec_find_encoder_by_name(const char *name)
1196 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
1203 AVCodec *avcodec_find_decoder(enum AVCodecID id)
1205 return find_encdec(id, 0);
1208 AVCodec *avcodec_find_decoder_by_name(const char *name)
1215 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
1222 const char *avcodec_get_name(enum AVCodecID id)
1224 const AVCodecDescriptor *cd;
1227 if (id == AV_CODEC_ID_NONE)
1229 cd = avcodec_descriptor_get(id);
1232 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1233 codec = avcodec_find_decoder(id);
1236 codec = avcodec_find_encoder(id);
1239 return "unknown_codec";
1242 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1244 int i, len, ret = 0;
1246 #define TAG_PRINT(x) \
1247 (((x) >= '0' && (x) <= '9') || \
1248 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1249 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1251 for (i = 0; i < 4; i++) {
1252 len = snprintf(buf, buf_size,
1253 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1255 buf_size = buf_size > len ? buf_size - len : 0;
1262 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1264 const char *codec_type;
1265 const char *codec_name;
1266 const char *profile = NULL;
1269 AVRational display_aspect_ratio;
1270 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1272 if (!buf || buf_size <= 0)
1274 codec_type = av_get_media_type_string(enc->codec_type);
1275 codec_name = avcodec_get_name(enc->codec_id);
1276 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1278 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1280 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1282 if (enc->codec && strcmp(enc->codec->name, codec_name))
1283 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1286 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1287 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1288 && av_log_get_level() >= AV_LOG_VERBOSE
1290 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1291 ", %d reference frame%s",
1292 enc->refs, enc->refs > 1 ? "s" : "");
1295 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1296 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1298 switch (enc->codec_type) {
1299 case AVMEDIA_TYPE_VIDEO:
1301 char detail[256] = "(";
1303 av_strlcat(buf, separator, buf_size);
1305 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1306 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1307 av_get_pix_fmt_name(enc->pix_fmt));
1308 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1309 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1310 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1311 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1312 av_strlcatf(detail, sizeof(detail), "%s, ",
1313 av_color_range_name(enc->color_range));
1315 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1316 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1317 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1318 if (enc->colorspace != (int)enc->color_primaries ||
1319 enc->colorspace != (int)enc->color_trc) {
1321 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1322 av_color_space_name(enc->colorspace),
1323 av_color_primaries_name(enc->color_primaries),
1324 av_color_transfer_name(enc->color_trc));
1326 av_strlcatf(detail, sizeof(detail), "%s, ",
1327 av_get_colorspace_name(enc->colorspace));
1330 if (enc->field_order != AV_FIELD_UNKNOWN) {
1331 const char *field_order = "progressive";
1332 if (enc->field_order == AV_FIELD_TT)
1333 field_order = "top first";
1334 else if (enc->field_order == AV_FIELD_BB)
1335 field_order = "bottom first";
1336 else if (enc->field_order == AV_FIELD_TB)
1337 field_order = "top coded first (swapped)";
1338 else if (enc->field_order == AV_FIELD_BT)
1339 field_order = "bottom coded first (swapped)";
1341 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1344 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1345 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1346 av_strlcatf(detail, sizeof(detail), "%s, ",
1347 av_chroma_location_name(enc->chroma_sample_location));
1349 if (strlen(detail) > 1) {
1350 detail[strlen(detail) - 2] = 0;
1351 av_strlcatf(buf, buf_size, "%s)", detail);
1356 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1358 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360 enc->width, enc->height);
1362 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1363 (enc->width != enc->coded_width ||
1364 enc->height != enc->coded_height))
1365 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1366 " (%dx%d)", enc->coded_width, enc->coded_height);
1368 if (enc->sample_aspect_ratio.num) {
1369 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1370 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1371 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1373 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1374 " [SAR %d:%d DAR %d:%d]",
1375 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1376 display_aspect_ratio.num, display_aspect_ratio.den);
1378 if (av_log_get_level() >= AV_LOG_DEBUG) {
1379 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1380 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1382 enc->time_base.num / g, enc->time_base.den / g);
1386 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1387 ", q=%d-%d", enc->qmin, enc->qmax);
1389 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1390 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1391 ", Closed Captions");
1392 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1393 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1397 case AVMEDIA_TYPE_AUDIO:
1398 av_strlcat(buf, separator, buf_size);
1400 if (enc->sample_rate) {
1401 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1402 "%d Hz, ", enc->sample_rate);
1404 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1405 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1406 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1407 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1409 if ( enc->bits_per_raw_sample > 0
1410 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1411 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1412 " (%d bit)", enc->bits_per_raw_sample);
1413 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1414 if (enc->initial_padding)
1415 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1416 ", delay %d", enc->initial_padding);
1417 if (enc->trailing_padding)
1418 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1419 ", padding %d", enc->trailing_padding);
1422 case AVMEDIA_TYPE_DATA:
1423 if (av_log_get_level() >= AV_LOG_DEBUG) {
1424 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1426 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1428 enc->time_base.num / g, enc->time_base.den / g);
1431 case AVMEDIA_TYPE_SUBTITLE:
1433 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1434 ", %dx%d", enc->width, enc->height);
1440 if (enc->flags & AV_CODEC_FLAG_PASS1)
1441 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1443 if (enc->flags & AV_CODEC_FLAG_PASS2)
1444 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1447 bitrate = get_bit_rate(enc);
1449 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1450 ", %"PRId64" kb/s", bitrate / 1000);
1451 } else if (enc->rc_max_rate > 0) {
1452 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1453 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1457 const char *av_get_profile_name(const AVCodec *codec, int profile)
1460 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1463 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1464 if (p->profile == profile)
1470 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1472 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1475 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1478 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1479 if (p->profile == profile)
1485 unsigned avcodec_version(void)
1487 // av_assert0(AV_CODEC_ID_V410==164);
1488 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1489 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1490 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
1491 av_assert0(AV_CODEC_ID_SRT==94216);
1492 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1494 return LIBAVCODEC_VERSION_INT;
1497 const char *avcodec_configuration(void)
1499 return FFMPEG_CONFIGURATION;
1502 const char *avcodec_license(void)
1504 #define LICENSE_PREFIX "libavcodec license: "
1505 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1508 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1511 case AV_CODEC_ID_8SVX_EXP:
1512 case AV_CODEC_ID_8SVX_FIB:
1513 case AV_CODEC_ID_ADPCM_CT:
1514 case AV_CODEC_ID_ADPCM_IMA_APC:
1515 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1516 case AV_CODEC_ID_ADPCM_IMA_OKI:
1517 case AV_CODEC_ID_ADPCM_IMA_WS:
1518 case AV_CODEC_ID_ADPCM_G722:
1519 case AV_CODEC_ID_ADPCM_YAMAHA:
1520 case AV_CODEC_ID_ADPCM_AICA:
1522 case AV_CODEC_ID_DSD_LSBF:
1523 case AV_CODEC_ID_DSD_MSBF:
1524 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1525 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1526 case AV_CODEC_ID_PCM_ALAW:
1527 case AV_CODEC_ID_PCM_MULAW:
1528 case AV_CODEC_ID_PCM_S8:
1529 case AV_CODEC_ID_PCM_S8_PLANAR:
1530 case AV_CODEC_ID_PCM_U8:
1531 case AV_CODEC_ID_PCM_ZORK:
1532 case AV_CODEC_ID_SDX2_DPCM:
1534 case AV_CODEC_ID_PCM_S16BE:
1535 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1536 case AV_CODEC_ID_PCM_S16LE:
1537 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1538 case AV_CODEC_ID_PCM_U16BE:
1539 case AV_CODEC_ID_PCM_U16LE:
1541 case AV_CODEC_ID_PCM_S24DAUD:
1542 case AV_CODEC_ID_PCM_S24BE:
1543 case AV_CODEC_ID_PCM_S24LE:
1544 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1545 case AV_CODEC_ID_PCM_U24BE:
1546 case AV_CODEC_ID_PCM_U24LE:
1548 case AV_CODEC_ID_PCM_S32BE:
1549 case AV_CODEC_ID_PCM_S32LE:
1550 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1551 case AV_CODEC_ID_PCM_U32BE:
1552 case AV_CODEC_ID_PCM_U32LE:
1553 case AV_CODEC_ID_PCM_F32BE:
1554 case AV_CODEC_ID_PCM_F32LE:
1555 case AV_CODEC_ID_PCM_F24LE:
1556 case AV_CODEC_ID_PCM_F16LE:
1558 case AV_CODEC_ID_PCM_F64BE:
1559 case AV_CODEC_ID_PCM_F64LE:
1560 case AV_CODEC_ID_PCM_S64BE:
1561 case AV_CODEC_ID_PCM_S64LE:
1568 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1570 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1571 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1572 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1573 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1574 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1575 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1576 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1577 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1578 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1579 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1580 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1581 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1583 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1584 return AV_CODEC_ID_NONE;
1585 if (be < 0 || be > 1)
1587 return map[fmt][be];
1590 int av_get_bits_per_sample(enum AVCodecID codec_id)
1593 case AV_CODEC_ID_ADPCM_SBPRO_2:
1595 case AV_CODEC_ID_ADPCM_SBPRO_3:
1597 case AV_CODEC_ID_ADPCM_SBPRO_4:
1598 case AV_CODEC_ID_ADPCM_IMA_WAV:
1599 case AV_CODEC_ID_ADPCM_IMA_QT:
1600 case AV_CODEC_ID_ADPCM_SWF:
1601 case AV_CODEC_ID_ADPCM_MS:
1604 return av_get_exact_bits_per_sample(codec_id);
1608 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1609 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1610 uint8_t * extradata, int frame_size, int frame_bytes)
1612 int bps = av_get_exact_bits_per_sample(id);
1613 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1615 /* codecs with an exact constant bits per sample */
1616 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1617 return (frame_bytes * 8LL) / (bps * ch);
1618 bps = bits_per_coded_sample;
1620 /* codecs with a fixed packet duration */
1622 case AV_CODEC_ID_ADPCM_ADX: return 32;
1623 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1624 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1625 case AV_CODEC_ID_AMR_NB:
1626 case AV_CODEC_ID_EVRC:
1627 case AV_CODEC_ID_GSM:
1628 case AV_CODEC_ID_QCELP:
1629 case AV_CODEC_ID_RA_288: return 160;
1630 case AV_CODEC_ID_AMR_WB:
1631 case AV_CODEC_ID_GSM_MS: return 320;
1632 case AV_CODEC_ID_MP1: return 384;
1633 case AV_CODEC_ID_ATRAC1: return 512;
1634 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1635 case AV_CODEC_ID_ATRAC3P: return 2048;
1636 case AV_CODEC_ID_MP2:
1637 case AV_CODEC_ID_MUSEPACK7: return 1152;
1638 case AV_CODEC_ID_AC3: return 1536;
1642 /* calc from sample rate */
1643 if (id == AV_CODEC_ID_TTA)
1644 return 256 * sr / 245;
1645 else if (id == AV_CODEC_ID_DST)
1646 return 588 * sr / 44100;
1649 /* calc from sample rate and channels */
1650 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1651 return (480 << (sr / 22050)) / ch;
1654 if (id == AV_CODEC_ID_MP3)
1655 return sr <= 24000 ? 576 : 1152;
1659 /* calc from block_align */
1660 if (id == AV_CODEC_ID_SIPR) {
1662 case 20: return 160;
1663 case 19: return 144;
1664 case 29: return 288;
1665 case 37: return 480;
1667 } else if (id == AV_CODEC_ID_ILBC) {
1669 case 38: return 160;
1670 case 50: return 240;
1675 if (frame_bytes > 0) {
1676 /* calc from frame_bytes only */
1677 if (id == AV_CODEC_ID_TRUESPEECH)
1678 return 240 * (frame_bytes / 32);
1679 if (id == AV_CODEC_ID_NELLYMOSER)
1680 return 256 * (frame_bytes / 64);
1681 if (id == AV_CODEC_ID_RA_144)
1682 return 160 * (frame_bytes / 20);
1683 if (id == AV_CODEC_ID_G723_1)
1684 return 240 * (frame_bytes / 24);
1687 /* calc from frame_bytes and bits_per_coded_sample */
1688 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1689 return frame_bytes * 8 / bps;
1692 if (ch > 0 && ch < INT_MAX/16) {
1693 /* calc from frame_bytes and channels */
1695 case AV_CODEC_ID_ADPCM_AFC:
1696 return frame_bytes / (9 * ch) * 16;
1697 case AV_CODEC_ID_ADPCM_PSX:
1698 case AV_CODEC_ID_ADPCM_DTK:
1699 return frame_bytes / (16 * ch) * 28;
1700 case AV_CODEC_ID_ADPCM_4XM:
1701 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1702 case AV_CODEC_ID_ADPCM_IMA_ISS:
1703 return (frame_bytes - 4 * ch) * 2 / ch;
1704 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1705 return (frame_bytes - 4) * 2 / ch;
1706 case AV_CODEC_ID_ADPCM_IMA_AMV:
1707 return (frame_bytes - 8) * 2 / ch;
1708 case AV_CODEC_ID_ADPCM_THP:
1709 case AV_CODEC_ID_ADPCM_THP_LE:
1711 return frame_bytes * 14 / (8 * ch);
1713 case AV_CODEC_ID_ADPCM_XA:
1714 return (frame_bytes / 128) * 224 / ch;
1715 case AV_CODEC_ID_INTERPLAY_DPCM:
1716 return (frame_bytes - 6 - ch) / ch;
1717 case AV_CODEC_ID_ROQ_DPCM:
1718 return (frame_bytes - 8) / ch;
1719 case AV_CODEC_ID_XAN_DPCM:
1720 return (frame_bytes - 2 * ch) / ch;
1721 case AV_CODEC_ID_MACE3:
1722 return 3 * frame_bytes / ch;
1723 case AV_CODEC_ID_MACE6:
1724 return 6 * frame_bytes / ch;
1725 case AV_CODEC_ID_PCM_LXF:
1726 return 2 * (frame_bytes / (5 * ch));
1727 case AV_CODEC_ID_IAC:
1728 case AV_CODEC_ID_IMC:
1729 return 4 * frame_bytes / ch;
1733 /* calc from frame_bytes, channels, and codec_tag */
1734 if (id == AV_CODEC_ID_SOL_DPCM) {
1736 return frame_bytes / ch;
1738 return frame_bytes * 2 / ch;
1743 /* calc from frame_bytes, channels, and block_align */
1744 int blocks = frame_bytes / ba;
1746 case AV_CODEC_ID_ADPCM_IMA_WAV:
1747 if (bps < 2 || bps > 5)
1749 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1750 case AV_CODEC_ID_ADPCM_IMA_DK3:
1751 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1752 case AV_CODEC_ID_ADPCM_IMA_DK4:
1753 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1754 case AV_CODEC_ID_ADPCM_IMA_RAD:
1755 return blocks * ((ba - 4 * ch) * 2 / ch);
1756 case AV_CODEC_ID_ADPCM_MS:
1757 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1758 case AV_CODEC_ID_ADPCM_MTAF:
1759 return blocks * (ba - 16) * 2 / ch;
1764 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1766 case AV_CODEC_ID_PCM_DVD:
1767 if(bps<4 || frame_bytes<3)
1769 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1770 case AV_CODEC_ID_PCM_BLURAY:
1771 if(bps<4 || frame_bytes<4)
1773 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1774 case AV_CODEC_ID_S302M:
1775 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1781 /* Fall back on using frame_size */
1782 if (frame_size > 1 && frame_bytes)
1785 //For WMA we currently have no other means to calculate duration thus we
1786 //do it here by assuming CBR, which is true for all known cases.
1787 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1788 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1789 return (frame_bytes * 8LL * sr) / bitrate;
1795 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1797 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1798 avctx->channels, avctx->block_align,
1799 avctx->codec_tag, avctx->bits_per_coded_sample,
1800 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1804 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1806 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1807 par->channels, par->block_align,
1808 par->codec_tag, par->bits_per_coded_sample,
1809 par->bit_rate, par->extradata, par->frame_size,
1814 int ff_thread_init(AVCodecContext *s)
1821 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1835 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1838 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1842 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1845 if (!codec->hw_configs || index < 0)
1847 for (i = 0; i <= index; i++)
1848 if (!codec->hw_configs[i])
1850 return &codec->hw_configs[index]->public;
1853 #if FF_API_USER_VISIBLE_AVHWACCEL
1854 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1859 void av_register_hwaccel(AVHWAccel *hwaccel)
1865 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1871 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
1873 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
1876 if (ff_mutex_lock(&codec_mutex))
1879 if (atomic_fetch_add(&entangled_thread_counter, 1)) {
1880 av_log(log_ctx, AV_LOG_ERROR,
1881 "Insufficient thread locking. At least %d threads are "
1882 "calling avcodec_open2() at the same time right now.\n",
1883 atomic_load(&entangled_thread_counter));
1884 ff_avcodec_locked = 1;
1885 ff_unlock_avcodec(codec);
1886 return AVERROR(EINVAL);
1888 av_assert0(!ff_avcodec_locked);
1889 ff_avcodec_locked = 1;
1893 int ff_unlock_avcodec(const AVCodec *codec)
1895 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
1898 av_assert0(ff_avcodec_locked);
1899 ff_avcodec_locked = 0;
1900 atomic_fetch_add(&entangled_thread_counter, -1);
1901 if (ff_mutex_unlock(&codec_mutex))
1907 int avpriv_lock_avformat(void)
1909 return ff_mutex_lock(&avformat_mutex) ? -1 : 0;
1912 int avpriv_unlock_avformat(void)
1914 return ff_mutex_unlock(&avformat_mutex) ? -1 : 0;
1917 unsigned int avpriv_toupper4(unsigned int x)
1919 return av_toupper(x & 0xFF) +
1920 (av_toupper((x >> 8) & 0xFF) << 8) +
1921 (av_toupper((x >> 16) & 0xFF) << 16) +
1922 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1925 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
1929 dst->owner[0] = src->owner[0];
1930 dst->owner[1] = src->owner[1];
1932 ret = av_frame_ref(dst->f, src->f);
1936 av_assert0(!dst->progress);
1938 if (src->progress &&
1939 !(dst->progress = av_buffer_ref(src->progress))) {
1940 ff_thread_release_buffer(dst->owner[0], dst);
1941 return AVERROR(ENOMEM);
1949 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1951 return ff_get_format(avctx, fmt);
1954 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1956 f->owner[0] = f->owner[1] = avctx;
1957 return ff_get_buffer(avctx, f->f, flags);
1960 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1963 av_frame_unref(f->f);
1966 void ff_thread_finish_setup(AVCodecContext *avctx)
1970 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1974 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1978 int ff_thread_can_start_frame(AVCodecContext *avctx)
1983 int ff_alloc_entries(AVCodecContext *avctx, int count)
1988 void ff_reset_entries(AVCodecContext *avctx)
1992 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1996 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
2002 int avcodec_is_open(AVCodecContext *s)
2004 return !!s->internal;
2007 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
2012 ret = av_bprint_finalize(buf, &str);
2015 if (!av_bprint_is_complete(buf)) {
2017 return AVERROR(ENOMEM);
2020 avctx->extradata = str;
2021 /* Note: the string is NUL terminated (so extradata can be read as a
2022 * string), but the ending character is not accounted in the size (in
2023 * binary formats you are likely not supposed to mux that character). When
2024 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
2026 avctx->extradata_size = buf->len;
2030 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
2032 uint32_t *av_restrict state)
2036 av_assert0(p <= end);
2040 for (i = 0; i < 3; i++) {
2041 uint32_t tmp = *state << 8;
2042 *state = tmp + *(p++);
2043 if (tmp == 0x100 || p == end)
2048 if (p[-1] > 1 ) p += 3;
2049 else if (p[-2] ) p += 2;
2050 else if (p[-3]|(p[-1]-1)) p++;
2057 p = FFMIN(p, end) - 4;
2058 *state = AV_RB32(p);
2063 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
2065 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2070 *size = sizeof(*props);
2072 props->vbv_delay = UINT64_MAX;
2077 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2079 AVPacketSideData *tmp;
2080 AVCPBProperties *props;
2083 props = av_cpb_properties_alloc(&size);
2087 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2093 avctx->coded_side_data = tmp;
2094 avctx->nb_coded_side_data++;
2096 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2097 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2098 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2103 static void codec_parameters_reset(AVCodecParameters *par)
2105 av_freep(&par->extradata);
2107 memset(par, 0, sizeof(*par));
2109 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2110 par->codec_id = AV_CODEC_ID_NONE;
2112 par->field_order = AV_FIELD_UNKNOWN;
2113 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2114 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2115 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2116 par->color_space = AVCOL_SPC_UNSPECIFIED;
2117 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2118 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2119 par->profile = FF_PROFILE_UNKNOWN;
2120 par->level = FF_LEVEL_UNKNOWN;
2123 AVCodecParameters *avcodec_parameters_alloc(void)
2125 AVCodecParameters *par = av_mallocz(sizeof(*par));
2129 codec_parameters_reset(par);
2133 void avcodec_parameters_free(AVCodecParameters **ppar)
2135 AVCodecParameters *par = *ppar;
2139 codec_parameters_reset(par);
2144 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2146 codec_parameters_reset(dst);
2147 memcpy(dst, src, sizeof(*dst));
2149 dst->extradata = NULL;
2150 dst->extradata_size = 0;
2151 if (src->extradata) {
2152 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2153 if (!dst->extradata)
2154 return AVERROR(ENOMEM);
2155 memcpy(dst->extradata, src->extradata, src->extradata_size);
2156 dst->extradata_size = src->extradata_size;
2162 int avcodec_parameters_from_context(AVCodecParameters *par,
2163 const AVCodecContext *codec)
2165 codec_parameters_reset(par);
2167 par->codec_type = codec->codec_type;
2168 par->codec_id = codec->codec_id;
2169 par->codec_tag = codec->codec_tag;
2171 par->bit_rate = codec->bit_rate;
2172 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2173 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2174 par->profile = codec->profile;
2175 par->level = codec->level;
2177 switch (par->codec_type) {
2178 case AVMEDIA_TYPE_VIDEO:
2179 par->format = codec->pix_fmt;
2180 par->width = codec->width;
2181 par->height = codec->height;
2182 par->field_order = codec->field_order;
2183 par->color_range = codec->color_range;
2184 par->color_primaries = codec->color_primaries;
2185 par->color_trc = codec->color_trc;
2186 par->color_space = codec->colorspace;
2187 par->chroma_location = codec->chroma_sample_location;
2188 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2189 par->video_delay = codec->has_b_frames;
2191 case AVMEDIA_TYPE_AUDIO:
2192 par->format = codec->sample_fmt;
2193 par->channel_layout = codec->channel_layout;
2194 par->channels = codec->channels;
2195 par->sample_rate = codec->sample_rate;
2196 par->block_align = codec->block_align;
2197 par->frame_size = codec->frame_size;
2198 par->initial_padding = codec->initial_padding;
2199 par->trailing_padding = codec->trailing_padding;
2200 par->seek_preroll = codec->seek_preroll;
2202 case AVMEDIA_TYPE_SUBTITLE:
2203 par->width = codec->width;
2204 par->height = codec->height;
2208 if (codec->extradata) {
2209 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2210 if (!par->extradata)
2211 return AVERROR(ENOMEM);
2212 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2213 par->extradata_size = codec->extradata_size;
2219 int avcodec_parameters_to_context(AVCodecContext *codec,
2220 const AVCodecParameters *par)
2222 codec->codec_type = par->codec_type;
2223 codec->codec_id = par->codec_id;
2224 codec->codec_tag = par->codec_tag;
2226 codec->bit_rate = par->bit_rate;
2227 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2228 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2229 codec->profile = par->profile;
2230 codec->level = par->level;
2232 switch (par->codec_type) {
2233 case AVMEDIA_TYPE_VIDEO:
2234 codec->pix_fmt = par->format;
2235 codec->width = par->width;
2236 codec->height = par->height;
2237 codec->field_order = par->field_order;
2238 codec->color_range = par->color_range;
2239 codec->color_primaries = par->color_primaries;
2240 codec->color_trc = par->color_trc;
2241 codec->colorspace = par->color_space;
2242 codec->chroma_sample_location = par->chroma_location;
2243 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2244 codec->has_b_frames = par->video_delay;
2246 case AVMEDIA_TYPE_AUDIO:
2247 codec->sample_fmt = par->format;
2248 codec->channel_layout = par->channel_layout;
2249 codec->channels = par->channels;
2250 codec->sample_rate = par->sample_rate;
2251 codec->block_align = par->block_align;
2252 codec->frame_size = par->frame_size;
2254 codec->initial_padding = par->initial_padding;
2255 codec->trailing_padding = par->trailing_padding;
2256 codec->seek_preroll = par->seek_preroll;
2258 case AVMEDIA_TYPE_SUBTITLE:
2259 codec->width = par->width;
2260 codec->height = par->height;
2264 if (par->extradata) {
2265 av_freep(&codec->extradata);
2266 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2267 if (!codec->extradata)
2268 return AVERROR(ENOMEM);
2269 memcpy(codec->extradata, par->extradata, par->extradata_size);
2270 codec->extradata_size = par->extradata_size;
2276 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2277 void **data, size_t *sei_size)
2279 AVFrameSideData *side_data = NULL;
2283 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2290 *sei_size = side_data->size + 11;
2291 *data = av_mallocz(*sei_size + prefix_len);
2293 return AVERROR(ENOMEM);
2294 sei_data = (uint8_t*)*data + prefix_len;
2302 * 'GA94' is standard in North America for ATSC, but hard coding
2303 * this style may not be the right thing to do -- other formats
2304 * do exist. This information is not available in the side_data
2305 * so we are going with this right now.
2307 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2309 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2312 memcpy(sei_data + 10, side_data->data, side_data->size);
2314 sei_data[side_data->size+10] = 255;
2319 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2321 AVRational framerate = avctx->framerate;
2322 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2325 if (!(framerate.num && framerate.den))
2326 framerate = av_inv_q(avctx->time_base);
2327 if (!(framerate.num && framerate.den))
2330 if (!bits_per_coded_sample) {
2331 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2332 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2334 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2335 framerate.num / framerate.den;