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/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
33 #include "libavutil/channel_layout.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
51 #include "frame_thread_encoder.h"
55 #include "bytestream.h"
59 #include <stdatomic.h>
66 #include "libavutil/ffversion.h"
67 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
69 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
71 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
74 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
79 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
80 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
83 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
86 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
91 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
92 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
95 int av_codec_is_encoder(const AVCodec *codec)
97 return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
100 int av_codec_is_decoder(const AVCodec *codec)
102 return codec && (codec->decode || codec->receive_frame);
105 int ff_set_dimensions(AVCodecContext *s, int width, int height)
107 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
112 s->coded_width = width;
113 s->coded_height = height;
114 s->width = AV_CEIL_RSHIFT(width, s->lowres);
115 s->height = AV_CEIL_RSHIFT(height, s->lowres);
120 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
122 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
125 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
127 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
130 avctx->sample_aspect_ratio = sar;
135 int ff_side_data_update_matrix_encoding(AVFrame *frame,
136 enum AVMatrixEncoding matrix_encoding)
138 AVFrameSideData *side_data;
139 enum AVMatrixEncoding *data;
141 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
143 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
144 sizeof(enum AVMatrixEncoding));
147 return AVERROR(ENOMEM);
149 data = (enum AVMatrixEncoding*)side_data->data;
150 *data = matrix_encoding;
155 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
156 int linesize_align[AV_NUM_DATA_POINTERS])
161 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
164 w_align = 1 << desc->log2_chroma_w;
165 h_align = 1 << desc->log2_chroma_h;
168 switch (s->pix_fmt) {
169 case AV_PIX_FMT_YUV420P:
170 case AV_PIX_FMT_YUYV422:
171 case AV_PIX_FMT_YVYU422:
172 case AV_PIX_FMT_UYVY422:
173 case AV_PIX_FMT_YUV422P:
174 case AV_PIX_FMT_YUV440P:
175 case AV_PIX_FMT_YUV444P:
176 case AV_PIX_FMT_GBRP:
177 case AV_PIX_FMT_GBRAP:
178 case AV_PIX_FMT_GRAY8:
179 case AV_PIX_FMT_GRAY16BE:
180 case AV_PIX_FMT_GRAY16LE:
181 case AV_PIX_FMT_YUVJ420P:
182 case AV_PIX_FMT_YUVJ422P:
183 case AV_PIX_FMT_YUVJ440P:
184 case AV_PIX_FMT_YUVJ444P:
185 case AV_PIX_FMT_YUVA420P:
186 case AV_PIX_FMT_YUVA422P:
187 case AV_PIX_FMT_YUVA444P:
188 case AV_PIX_FMT_YUV420P9LE:
189 case AV_PIX_FMT_YUV420P9BE:
190 case AV_PIX_FMT_YUV420P10LE:
191 case AV_PIX_FMT_YUV420P10BE:
192 case AV_PIX_FMT_YUV420P12LE:
193 case AV_PIX_FMT_YUV420P12BE:
194 case AV_PIX_FMT_YUV420P14LE:
195 case AV_PIX_FMT_YUV420P14BE:
196 case AV_PIX_FMT_YUV420P16LE:
197 case AV_PIX_FMT_YUV420P16BE:
198 case AV_PIX_FMT_YUVA420P9LE:
199 case AV_PIX_FMT_YUVA420P9BE:
200 case AV_PIX_FMT_YUVA420P10LE:
201 case AV_PIX_FMT_YUVA420P10BE:
202 case AV_PIX_FMT_YUVA420P16LE:
203 case AV_PIX_FMT_YUVA420P16BE:
204 case AV_PIX_FMT_YUV422P9LE:
205 case AV_PIX_FMT_YUV422P9BE:
206 case AV_PIX_FMT_YUV422P10LE:
207 case AV_PIX_FMT_YUV422P10BE:
208 case AV_PIX_FMT_YUV422P12LE:
209 case AV_PIX_FMT_YUV422P12BE:
210 case AV_PIX_FMT_YUV422P14LE:
211 case AV_PIX_FMT_YUV422P14BE:
212 case AV_PIX_FMT_YUV422P16LE:
213 case AV_PIX_FMT_YUV422P16BE:
214 case AV_PIX_FMT_YUVA422P9LE:
215 case AV_PIX_FMT_YUVA422P9BE:
216 case AV_PIX_FMT_YUVA422P10LE:
217 case AV_PIX_FMT_YUVA422P10BE:
218 case AV_PIX_FMT_YUVA422P12LE:
219 case AV_PIX_FMT_YUVA422P12BE:
220 case AV_PIX_FMT_YUVA422P16LE:
221 case AV_PIX_FMT_YUVA422P16BE:
222 case AV_PIX_FMT_YUV440P10LE:
223 case AV_PIX_FMT_YUV440P10BE:
224 case AV_PIX_FMT_YUV440P12LE:
225 case AV_PIX_FMT_YUV440P12BE:
226 case AV_PIX_FMT_YUV444P9LE:
227 case AV_PIX_FMT_YUV444P9BE:
228 case AV_PIX_FMT_YUV444P10LE:
229 case AV_PIX_FMT_YUV444P10BE:
230 case AV_PIX_FMT_YUV444P12LE:
231 case AV_PIX_FMT_YUV444P12BE:
232 case AV_PIX_FMT_YUV444P14LE:
233 case AV_PIX_FMT_YUV444P14BE:
234 case AV_PIX_FMT_YUV444P16LE:
235 case AV_PIX_FMT_YUV444P16BE:
236 case AV_PIX_FMT_YUVA444P9LE:
237 case AV_PIX_FMT_YUVA444P9BE:
238 case AV_PIX_FMT_YUVA444P10LE:
239 case AV_PIX_FMT_YUVA444P10BE:
240 case AV_PIX_FMT_YUVA444P12LE:
241 case AV_PIX_FMT_YUVA444P12BE:
242 case AV_PIX_FMT_YUVA444P16LE:
243 case AV_PIX_FMT_YUVA444P16BE:
244 case AV_PIX_FMT_GBRP9LE:
245 case AV_PIX_FMT_GBRP9BE:
246 case AV_PIX_FMT_GBRP10LE:
247 case AV_PIX_FMT_GBRP10BE:
248 case AV_PIX_FMT_GBRP12LE:
249 case AV_PIX_FMT_GBRP12BE:
250 case AV_PIX_FMT_GBRP14LE:
251 case AV_PIX_FMT_GBRP14BE:
252 case AV_PIX_FMT_GBRP16LE:
253 case AV_PIX_FMT_GBRP16BE:
254 case AV_PIX_FMT_GBRAP12LE:
255 case AV_PIX_FMT_GBRAP12BE:
256 case AV_PIX_FMT_GBRAP16LE:
257 case AV_PIX_FMT_GBRAP16BE:
258 w_align = 16; //FIXME assume 16 pixel per macroblock
259 h_align = 16 * 2; // interlaced needs 2 macroblocks height
261 case AV_PIX_FMT_YUV411P:
262 case AV_PIX_FMT_YUVJ411P:
263 case AV_PIX_FMT_UYYVYY411:
267 case AV_PIX_FMT_YUV410P:
268 if (s->codec_id == AV_CODEC_ID_SVQ1) {
273 case AV_PIX_FMT_RGB555:
274 if (s->codec_id == AV_CODEC_ID_RPZA) {
278 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
283 case AV_PIX_FMT_PAL8:
284 case AV_PIX_FMT_BGR8:
285 case AV_PIX_FMT_RGB8:
286 if (s->codec_id == AV_CODEC_ID_SMC ||
287 s->codec_id == AV_CODEC_ID_CINEPAK) {
291 if (s->codec_id == AV_CODEC_ID_JV ||
292 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
297 case AV_PIX_FMT_BGR24:
298 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
299 (s->codec_id == AV_CODEC_ID_ZLIB)) {
304 case AV_PIX_FMT_RGB24:
305 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
314 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
315 w_align = FFMAX(w_align, 8);
318 *width = FFALIGN(*width, w_align);
319 *height = FFALIGN(*height, h_align);
320 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
321 s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
322 s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
324 // some of the optimized chroma MC reads one line too much
325 // which is also done in mpeg decoders with lowres > 0
328 // H.264 uses edge emulation for out of frame motion vectors, for this
329 // it requires a temporary area large enough to hold a 21x21 block,
330 // increasing witdth ensure that the temporary area is large enough,
331 // the next rounded up width is 32
332 *width = FFMAX(*width, 32);
335 for (i = 0; i < 4; i++)
336 linesize_align[i] = STRIDE_ALIGN;
339 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
341 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
342 int chroma_shift = desc->log2_chroma_w;
343 int linesize_align[AV_NUM_DATA_POINTERS];
346 avcodec_align_dimensions2(s, width, height, linesize_align);
347 align = FFMAX(linesize_align[0], linesize_align[3]);
348 linesize_align[1] <<= chroma_shift;
349 linesize_align[2] <<= chroma_shift;
350 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
351 *width = FFALIGN(*width, align);
354 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
356 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
357 return AVERROR(EINVAL);
360 *xpos = (pos&1) * 128;
361 *ypos = ((pos>>1)^(pos<4)) * 128;
366 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
370 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
371 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
374 return AVCHROMA_LOC_UNSPECIFIED;
377 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
378 enum AVSampleFormat sample_fmt, const uint8_t *buf,
379 int buf_size, int align)
381 int ch, planar, needed_size, ret = 0;
383 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
384 frame->nb_samples, sample_fmt,
386 if (buf_size < needed_size)
387 return AVERROR(EINVAL);
389 planar = av_sample_fmt_is_planar(sample_fmt);
390 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
391 if (!(frame->extended_data = av_mallocz_array(nb_channels,
392 sizeof(*frame->extended_data))))
393 return AVERROR(ENOMEM);
395 frame->extended_data = frame->data;
398 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
399 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
400 sample_fmt, align)) < 0) {
401 if (frame->extended_data != frame->data)
402 av_freep(&frame->extended_data);
405 if (frame->extended_data != frame->data) {
406 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
407 frame->data[ch] = frame->extended_data[ch];
413 void ff_color_frame(AVFrame *frame, const int c[4])
415 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
418 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
420 for (p = 0; p<desc->nb_components; p++) {
421 uint8_t *dst = frame->data[p];
422 int is_chroma = p == 1 || p == 2;
423 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
424 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
425 if (desc->comp[0].depth >= 9) {
426 ((uint16_t*)dst)[0] = c[p];
427 av_memcpy_backptr(dst + 2, 2, bytes - 2);
428 dst += frame->linesize[p];
429 for (y = 1; y < height; y++) {
430 memcpy(dst, frame->data[p], 2*bytes);
431 dst += frame->linesize[p];
434 for (y = 0; y < height; y++) {
435 memset(dst, c[p], bytes);
436 dst += frame->linesize[p];
442 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
446 for (i = 0; i < count; i++) {
447 int r = func(c, (char *)arg + i * size);
455 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
459 for (i = 0; i < count; i++) {
460 int r = func(c, arg, i, 0);
468 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
471 while (tags->pix_fmt >= 0) {
472 if (tags->fourcc == fourcc)
473 return tags->pix_fmt;
476 return AV_PIX_FMT_NONE;
479 #if FF_API_CODEC_GET_SET
480 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
481 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
483 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
484 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
486 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
488 return codec->properties;
491 int av_codec_get_max_lowres(const AVCodec *codec)
493 return codec->max_lowres;
497 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
498 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
501 static int64_t get_bit_rate(AVCodecContext *ctx)
506 switch (ctx->codec_type) {
507 case AVMEDIA_TYPE_VIDEO:
508 case AVMEDIA_TYPE_DATA:
509 case AVMEDIA_TYPE_SUBTITLE:
510 case AVMEDIA_TYPE_ATTACHMENT:
511 bit_rate = ctx->bit_rate;
513 case AVMEDIA_TYPE_AUDIO:
514 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
515 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
525 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
527 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528 ff_mutex_lock(&codec_mutex);
531 static void ff_unlock_avcodec(const AVCodec *codec)
533 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
534 ff_mutex_unlock(&codec_mutex);
537 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
541 ff_unlock_avcodec(codec);
543 ret = avcodec_open2(avctx, codec, options);
545 ff_lock_avcodec(avctx, codec);
549 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
552 int codec_init_ok = 0;
553 AVDictionary *tmp = NULL;
554 const AVPixFmtDescriptor *pixdesc;
555 AVCodecInternal *avci;
557 if (avcodec_is_open(avctx))
560 if (!codec && !avctx->codec) {
561 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
562 return AVERROR(EINVAL);
564 if (codec && avctx->codec && codec != avctx->codec) {
565 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
566 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
567 return AVERROR(EINVAL);
570 codec = avctx->codec;
572 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
573 return AVERROR(EINVAL);
576 av_dict_copy(&tmp, *options, 0);
578 ff_lock_avcodec(avctx, codec);
580 avci = av_mallocz(sizeof(*avci));
582 ret = AVERROR(ENOMEM);
585 avctx->internal = avci;
587 avci->to_free = av_frame_alloc();
588 avci->compat_decode_frame = av_frame_alloc();
589 avci->compat_encode_packet = av_packet_alloc();
590 avci->buffer_frame = av_frame_alloc();
591 avci->buffer_pkt = av_packet_alloc();
592 avci->es.in_frame = av_frame_alloc();
593 avci->ds.in_pkt = av_packet_alloc();
594 avci->last_pkt_props = av_packet_alloc();
595 if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
596 !avci->buffer_frame || !avci->buffer_pkt ||
597 !avci->es.in_frame || !avci->ds.in_pkt ||
598 !avci->to_free || !avci->last_pkt_props) {
599 ret = AVERROR(ENOMEM);
603 avci->skip_samples_multiplier = 1;
605 if (codec->priv_data_size > 0) {
606 if (!avctx->priv_data) {
607 avctx->priv_data = av_mallocz(codec->priv_data_size);
608 if (!avctx->priv_data) {
609 ret = AVERROR(ENOMEM);
612 if (codec->priv_class) {
613 *(const AVClass **)avctx->priv_data = codec->priv_class;
614 av_opt_set_defaults(avctx->priv_data);
617 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
620 avctx->priv_data = NULL;
622 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
625 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
626 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
627 ret = AVERROR(EINVAL);
631 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
632 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
633 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
634 if (avctx->coded_width && avctx->coded_height)
635 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
636 else if (avctx->width && avctx->height)
637 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
642 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
643 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
644 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
645 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
646 ff_set_dimensions(avctx, 0, 0);
649 if (avctx->width > 0 && avctx->height > 0) {
650 if (av_image_check_sar(avctx->width, avctx->height,
651 avctx->sample_aspect_ratio) < 0) {
652 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
653 avctx->sample_aspect_ratio.num,
654 avctx->sample_aspect_ratio.den);
655 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
659 /* if the decoder init function was already called previously,
660 * free the already allocated subtitle_header before overwriting it */
661 if (av_codec_is_decoder(codec))
662 av_freep(&avctx->subtitle_header);
664 if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
665 av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
666 ret = AVERROR(EINVAL);
669 if (avctx->sample_rate < 0) {
670 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
671 ret = AVERROR(EINVAL);
674 if (avctx->block_align < 0) {
675 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
676 ret = AVERROR(EINVAL);
680 avctx->codec = codec;
681 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
682 avctx->codec_id == AV_CODEC_ID_NONE) {
683 avctx->codec_type = codec->type;
684 avctx->codec_id = codec->id;
686 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
687 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
688 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
689 ret = AVERROR(EINVAL);
692 avctx->frame_number = 0;
693 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
695 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
696 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
697 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
699 av_log(avctx, AV_LOG_ERROR,
700 "The %s '%s' is experimental but experimental codecs are not enabled, "
701 "add '-strict %d' if you want to use it.\n",
702 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
703 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
704 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
705 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
706 codec_string, codec2->name);
707 ret = AVERROR_EXPERIMENTAL;
711 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
712 (!avctx->time_base.num || !avctx->time_base.den)) {
713 avctx->time_base.num = 1;
714 avctx->time_base.den = avctx->sample_rate;
718 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
720 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
721 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
722 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
723 ff_lock_avcodec(avctx, codec);
728 if (av_codec_is_decoder(avctx->codec)) {
729 ret = ff_decode_bsfs_init(avctx);
735 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
736 ret = ff_thread_init(avctx);
741 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
742 avctx->thread_count = 1;
744 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
745 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
746 avctx->codec->max_lowres);
747 avctx->lowres = avctx->codec->max_lowres;
750 if (av_codec_is_encoder(avctx->codec)) {
752 #if FF_API_CODED_FRAME
753 FF_DISABLE_DEPRECATION_WARNINGS
754 avctx->coded_frame = av_frame_alloc();
755 if (!avctx->coded_frame) {
756 ret = AVERROR(ENOMEM);
759 FF_ENABLE_DEPRECATION_WARNINGS
762 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
763 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
764 ret = AVERROR(EINVAL);
768 if (avctx->codec->sample_fmts) {
769 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
770 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
772 if (avctx->channels == 1 &&
773 av_get_planar_sample_fmt(avctx->sample_fmt) ==
774 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
775 avctx->sample_fmt = avctx->codec->sample_fmts[i];
779 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
781 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
782 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
783 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
784 ret = AVERROR(EINVAL);
788 if (avctx->codec->pix_fmts) {
789 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
790 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
792 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
793 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
794 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
796 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
797 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
798 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
799 ret = AVERROR(EINVAL);
802 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
803 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
804 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
805 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
806 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
807 avctx->color_range = AVCOL_RANGE_JPEG;
809 if (avctx->codec->supported_samplerates) {
810 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
811 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
813 if (avctx->codec->supported_samplerates[i] == 0) {
814 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
816 ret = AVERROR(EINVAL);
820 if (avctx->sample_rate < 0) {
821 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
823 ret = AVERROR(EINVAL);
826 if (avctx->codec->channel_layouts) {
827 if (!avctx->channel_layout) {
828 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
830 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
831 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
833 if (avctx->codec->channel_layouts[i] == 0) {
835 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
836 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
837 ret = AVERROR(EINVAL);
842 if (avctx->channel_layout && avctx->channels) {
843 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
844 if (channels != avctx->channels) {
846 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
847 av_log(avctx, AV_LOG_ERROR,
848 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
849 buf, channels, avctx->channels);
850 ret = AVERROR(EINVAL);
853 } else if (avctx->channel_layout) {
854 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
856 if (avctx->channels < 0) {
857 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
859 ret = AVERROR(EINVAL);
862 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
863 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
864 if ( avctx->bits_per_raw_sample < 0
865 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
866 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
867 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
868 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
870 if (avctx->width <= 0 || avctx->height <= 0) {
871 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
872 ret = AVERROR(EINVAL);
876 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
877 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
878 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
881 if (!avctx->rc_initial_buffer_occupancy)
882 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
884 if (avctx->ticks_per_frame && avctx->time_base.num &&
885 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
886 av_log(avctx, AV_LOG_ERROR,
887 "ticks_per_frame %d too large for the timebase %d/%d.",
888 avctx->ticks_per_frame,
889 avctx->time_base.num,
890 avctx->time_base.den);
894 if (avctx->hw_frames_ctx) {
895 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
896 if (frames_ctx->format != avctx->pix_fmt) {
897 av_log(avctx, AV_LOG_ERROR,
898 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
899 ret = AVERROR(EINVAL);
902 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
903 avctx->sw_pix_fmt != frames_ctx->sw_format) {
904 av_log(avctx, AV_LOG_ERROR,
905 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
906 "and AVHWFramesContext.sw_format (%s)\n",
907 av_get_pix_fmt_name(avctx->sw_pix_fmt),
908 av_get_pix_fmt_name(frames_ctx->sw_format));
909 ret = AVERROR(EINVAL);
912 avctx->sw_pix_fmt = frames_ctx->sw_format;
916 avctx->pts_correction_num_faulty_pts =
917 avctx->pts_correction_num_faulty_dts = 0;
918 avctx->pts_correction_last_pts =
919 avctx->pts_correction_last_dts = INT64_MIN;
921 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
922 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
923 av_log(avctx, AV_LOG_WARNING,
924 "gray decoding requested but not enabled at configuration time\n");
925 if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
926 avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
929 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
930 || avci->frame_thread_encoder)) {
931 ret = avctx->codec->init(avctx);
940 if (av_codec_is_decoder(avctx->codec)) {
941 if (!avctx->bit_rate)
942 avctx->bit_rate = get_bit_rate(avctx);
943 /* validate channel layout from the decoder */
944 if (avctx->channel_layout) {
945 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
946 if (!avctx->channels)
947 avctx->channels = channels;
948 else if (channels != avctx->channels) {
950 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
951 av_log(avctx, AV_LOG_WARNING,
952 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
953 "ignoring specified channel layout\n",
954 buf, channels, avctx->channels);
955 avctx->channel_layout = 0;
958 if (avctx->channels && avctx->channels < 0 ||
959 avctx->channels > FF_SANE_NB_CHANNELS) {
960 ret = AVERROR(EINVAL);
963 if (avctx->bits_per_coded_sample < 0) {
964 ret = AVERROR(EINVAL);
967 if (avctx->sub_charenc) {
968 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
969 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
970 "supported with subtitles codecs\n");
971 ret = AVERROR(EINVAL);
973 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
974 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
975 "subtitles character encoding will be ignored\n",
976 avctx->codec_descriptor->name);
977 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
979 /* input character encoding is set for a text based subtitle
980 * codec at this point */
981 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
982 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
984 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
986 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
987 if (cd == (iconv_t)-1) {
988 ret = AVERROR(errno);
989 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
990 "with input character encoding \"%s\"\n", avctx->sub_charenc);
995 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
996 "conversion needs a libavcodec built with iconv support "
998 ret = AVERROR(ENOSYS);
1005 #if FF_API_AVCTX_TIMEBASE
1006 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1007 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1010 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1011 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1015 ff_unlock_avcodec(codec);
1017 av_dict_free(options);
1023 if (avctx->codec && avctx->codec->close &&
1025 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
1026 avctx->codec->close(avctx);
1028 if (HAVE_THREADS && avci->thread_ctx)
1029 ff_thread_free(avctx);
1031 if (codec->priv_class && codec->priv_data_size)
1032 av_opt_free(avctx->priv_data);
1035 #if FF_API_CODED_FRAME
1036 FF_DISABLE_DEPRECATION_WARNINGS
1037 av_frame_free(&avctx->coded_frame);
1038 FF_ENABLE_DEPRECATION_WARNINGS
1042 av_freep(&avctx->priv_data);
1043 av_freep(&avctx->subtitle_header);
1045 av_frame_free(&avci->to_free);
1046 av_frame_free(&avci->compat_decode_frame);
1047 av_frame_free(&avci->buffer_frame);
1048 av_packet_free(&avci->compat_encode_packet);
1049 av_packet_free(&avci->buffer_pkt);
1050 av_packet_free(&avci->last_pkt_props);
1052 av_packet_free(&avci->ds.in_pkt);
1053 av_frame_free(&avci->es.in_frame);
1054 av_bsf_free(&avci->bsf);
1056 av_buffer_unref(&avci->pool);
1059 avctx->internal = NULL;
1060 avctx->codec = NULL;
1064 void avcodec_flush_buffers(AVCodecContext *avctx)
1066 AVCodecInternal *avci = avctx->internal;
1068 if (av_codec_is_encoder(avctx->codec)) {
1069 int caps = avctx->codec->capabilities;
1071 if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1072 // Only encoders that explicitly declare support for it can be
1073 // flushed. Otherwise, this is a no-op.
1074 av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1075 "that doesn't support it\n");
1079 // We haven't implemented flushing for frame-threaded encoders.
1080 av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
1084 avci->draining_done = 0;
1085 avci->nb_draining_errors = 0;
1086 av_frame_unref(avci->buffer_frame);
1087 av_frame_unref(avci->compat_decode_frame);
1088 av_packet_unref(avci->compat_encode_packet);
1089 av_packet_unref(avci->buffer_pkt);
1091 av_frame_unref(avci->es.in_frame);
1092 av_packet_unref(avci->ds.in_pkt);
1094 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1095 ff_thread_flush(avctx);
1096 else if (avctx->codec->flush)
1097 avctx->codec->flush(avctx);
1099 avctx->pts_correction_last_pts =
1100 avctx->pts_correction_last_dts = INT64_MIN;
1102 if (av_codec_is_decoder(avctx->codec))
1103 av_bsf_flush(avci->bsf);
1105 if (!avctx->refcounted_frames)
1106 av_frame_unref(avci->to_free);
1109 void avsubtitle_free(AVSubtitle *sub)
1113 for (i = 0; i < sub->num_rects; i++) {
1114 av_freep(&sub->rects[i]->data[0]);
1115 av_freep(&sub->rects[i]->data[1]);
1116 av_freep(&sub->rects[i]->data[2]);
1117 av_freep(&sub->rects[i]->data[3]);
1118 av_freep(&sub->rects[i]->text);
1119 av_freep(&sub->rects[i]->ass);
1120 av_freep(&sub->rects[i]);
1123 av_freep(&sub->rects);
1125 memset(sub, 0, sizeof(*sub));
1128 av_cold int avcodec_close(AVCodecContext *avctx)
1135 if (avcodec_is_open(avctx)) {
1136 if (CONFIG_FRAME_THREAD_ENCODER &&
1137 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1138 ff_frame_thread_encoder_free(avctx);
1140 if (HAVE_THREADS && avctx->internal->thread_ctx)
1141 ff_thread_free(avctx);
1142 if (avctx->codec && avctx->codec->close)
1143 avctx->codec->close(avctx);
1144 avctx->internal->byte_buffer_size = 0;
1145 av_freep(&avctx->internal->byte_buffer);
1146 av_frame_free(&avctx->internal->to_free);
1147 av_frame_free(&avctx->internal->compat_decode_frame);
1148 av_frame_free(&avctx->internal->buffer_frame);
1149 av_packet_free(&avctx->internal->compat_encode_packet);
1150 av_packet_free(&avctx->internal->buffer_pkt);
1151 av_packet_free(&avctx->internal->last_pkt_props);
1153 av_packet_free(&avctx->internal->ds.in_pkt);
1154 av_frame_free(&avctx->internal->es.in_frame);
1156 av_buffer_unref(&avctx->internal->pool);
1158 if (avctx->hwaccel && avctx->hwaccel->uninit)
1159 avctx->hwaccel->uninit(avctx);
1160 av_freep(&avctx->internal->hwaccel_priv_data);
1162 av_bsf_free(&avctx->internal->bsf);
1164 av_freep(&avctx->internal);
1167 for (i = 0; i < avctx->nb_coded_side_data; i++)
1168 av_freep(&avctx->coded_side_data[i].data);
1169 av_freep(&avctx->coded_side_data);
1170 avctx->nb_coded_side_data = 0;
1172 av_buffer_unref(&avctx->hw_frames_ctx);
1173 av_buffer_unref(&avctx->hw_device_ctx);
1175 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1176 av_opt_free(avctx->priv_data);
1178 av_freep(&avctx->priv_data);
1179 if (av_codec_is_encoder(avctx->codec)) {
1180 av_freep(&avctx->extradata);
1181 #if FF_API_CODED_FRAME
1182 FF_DISABLE_DEPRECATION_WARNINGS
1183 av_frame_free(&avctx->coded_frame);
1184 FF_ENABLE_DEPRECATION_WARNINGS
1187 avctx->codec = NULL;
1188 avctx->active_thread_type = 0;
1193 const char *avcodec_get_name(enum AVCodecID id)
1195 const AVCodecDescriptor *cd;
1198 if (id == AV_CODEC_ID_NONE)
1200 cd = avcodec_descriptor_get(id);
1203 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1204 codec = avcodec_find_decoder(id);
1207 codec = avcodec_find_encoder(id);
1210 return "unknown_codec";
1213 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1215 int i, len, ret = 0;
1217 #define TAG_PRINT(x) \
1218 (((x) >= '0' && (x) <= '9') || \
1219 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1220 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1222 for (i = 0; i < 4; i++) {
1223 len = snprintf(buf, buf_size,
1224 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1226 buf_size = buf_size > len ? buf_size - len : 0;
1233 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1235 const char *codec_type;
1236 const char *codec_name;
1237 const char *profile = NULL;
1240 AVRational display_aspect_ratio;
1241 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1243 if (!buf || buf_size <= 0)
1245 codec_type = av_get_media_type_string(enc->codec_type);
1246 codec_name = avcodec_get_name(enc->codec_id);
1247 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1249 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1251 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1253 if (enc->codec && strcmp(enc->codec->name, codec_name))
1254 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1257 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1258 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1259 && av_log_get_level() >= AV_LOG_VERBOSE
1261 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1262 ", %d reference frame%s",
1263 enc->refs, enc->refs > 1 ? "s" : "");
1266 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1267 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1269 switch (enc->codec_type) {
1270 case AVMEDIA_TYPE_VIDEO:
1272 char detail[256] = "(";
1274 av_strlcat(buf, separator, buf_size);
1276 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1277 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1278 av_get_pix_fmt_name(enc->pix_fmt));
1279 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1280 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1281 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1282 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1283 av_strlcatf(detail, sizeof(detail), "%s, ",
1284 av_color_range_name(enc->color_range));
1286 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1287 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1288 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1289 if (enc->colorspace != (int)enc->color_primaries ||
1290 enc->colorspace != (int)enc->color_trc) {
1292 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1293 av_color_space_name(enc->colorspace),
1294 av_color_primaries_name(enc->color_primaries),
1295 av_color_transfer_name(enc->color_trc));
1297 av_strlcatf(detail, sizeof(detail), "%s, ",
1298 av_get_colorspace_name(enc->colorspace));
1301 if (enc->field_order != AV_FIELD_UNKNOWN) {
1302 const char *field_order = "progressive";
1303 if (enc->field_order == AV_FIELD_TT)
1304 field_order = "top first";
1305 else if (enc->field_order == AV_FIELD_BB)
1306 field_order = "bottom first";
1307 else if (enc->field_order == AV_FIELD_TB)
1308 field_order = "top coded first (swapped)";
1309 else if (enc->field_order == AV_FIELD_BT)
1310 field_order = "bottom coded first (swapped)";
1312 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1315 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1316 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1317 av_strlcatf(detail, sizeof(detail), "%s, ",
1318 av_chroma_location_name(enc->chroma_sample_location));
1320 if (strlen(detail) > 1) {
1321 detail[strlen(detail) - 2] = 0;
1322 av_strlcatf(buf, buf_size, "%s)", detail);
1327 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1329 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1331 enc->width, enc->height);
1333 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1334 (enc->width != enc->coded_width ||
1335 enc->height != enc->coded_height))
1336 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1337 " (%dx%d)", enc->coded_width, enc->coded_height);
1339 if (enc->sample_aspect_ratio.num) {
1340 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1341 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1342 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1344 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1345 " [SAR %d:%d DAR %d:%d]",
1346 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1347 display_aspect_ratio.num, display_aspect_ratio.den);
1349 if (av_log_get_level() >= AV_LOG_DEBUG) {
1350 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1351 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1353 enc->time_base.num / g, enc->time_base.den / g);
1357 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1358 ", q=%d-%d", enc->qmin, enc->qmax);
1360 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1361 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1362 ", Closed Captions");
1363 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1364 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1368 case AVMEDIA_TYPE_AUDIO:
1369 av_strlcat(buf, separator, buf_size);
1371 if (enc->sample_rate) {
1372 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1373 "%d Hz, ", enc->sample_rate);
1375 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1376 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1377 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1378 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1380 if ( enc->bits_per_raw_sample > 0
1381 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1382 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1383 " (%d bit)", enc->bits_per_raw_sample);
1384 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1385 if (enc->initial_padding)
1386 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1387 ", delay %d", enc->initial_padding);
1388 if (enc->trailing_padding)
1389 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1390 ", padding %d", enc->trailing_padding);
1393 case AVMEDIA_TYPE_DATA:
1394 if (av_log_get_level() >= AV_LOG_DEBUG) {
1395 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1397 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1399 enc->time_base.num / g, enc->time_base.den / g);
1402 case AVMEDIA_TYPE_SUBTITLE:
1404 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1405 ", %dx%d", enc->width, enc->height);
1411 if (enc->flags & AV_CODEC_FLAG_PASS1)
1412 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1414 if (enc->flags & AV_CODEC_FLAG_PASS2)
1415 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1418 bitrate = get_bit_rate(enc);
1420 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1421 ", %"PRId64" kb/s", bitrate / 1000);
1422 } else if (enc->rc_max_rate > 0) {
1423 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1424 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1428 const char *av_get_profile_name(const AVCodec *codec, int profile)
1431 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1434 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1435 if (p->profile == profile)
1441 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1443 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1446 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1449 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1450 if (p->profile == profile)
1456 unsigned avcodec_version(void)
1458 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1459 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1460 av_assert0(AV_CODEC_ID_SRT==94216);
1461 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1463 return LIBAVCODEC_VERSION_INT;
1466 const char *avcodec_configuration(void)
1468 return FFMPEG_CONFIGURATION;
1471 const char *avcodec_license(void)
1473 #define LICENSE_PREFIX "libavcodec license: "
1474 return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1477 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1480 case AV_CODEC_ID_8SVX_EXP:
1481 case AV_CODEC_ID_8SVX_FIB:
1482 case AV_CODEC_ID_ADPCM_CT:
1483 case AV_CODEC_ID_ADPCM_IMA_APC:
1484 case AV_CODEC_ID_ADPCM_IMA_APM:
1485 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1486 case AV_CODEC_ID_ADPCM_IMA_OKI:
1487 case AV_CODEC_ID_ADPCM_IMA_WS:
1488 case AV_CODEC_ID_ADPCM_IMA_SSI:
1489 case AV_CODEC_ID_ADPCM_G722:
1490 case AV_CODEC_ID_ADPCM_YAMAHA:
1491 case AV_CODEC_ID_ADPCM_AICA:
1493 case AV_CODEC_ID_DSD_LSBF:
1494 case AV_CODEC_ID_DSD_MSBF:
1495 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1496 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1497 case AV_CODEC_ID_PCM_ALAW:
1498 case AV_CODEC_ID_PCM_MULAW:
1499 case AV_CODEC_ID_PCM_VIDC:
1500 case AV_CODEC_ID_PCM_S8:
1501 case AV_CODEC_ID_PCM_S8_PLANAR:
1502 case AV_CODEC_ID_PCM_U8:
1503 case AV_CODEC_ID_SDX2_DPCM:
1504 case AV_CODEC_ID_DERF_DPCM:
1506 case AV_CODEC_ID_PCM_S16BE:
1507 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1508 case AV_CODEC_ID_PCM_S16LE:
1509 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1510 case AV_CODEC_ID_PCM_U16BE:
1511 case AV_CODEC_ID_PCM_U16LE:
1513 case AV_CODEC_ID_PCM_S24DAUD:
1514 case AV_CODEC_ID_PCM_S24BE:
1515 case AV_CODEC_ID_PCM_S24LE:
1516 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1517 case AV_CODEC_ID_PCM_U24BE:
1518 case AV_CODEC_ID_PCM_U24LE:
1520 case AV_CODEC_ID_PCM_S32BE:
1521 case AV_CODEC_ID_PCM_S32LE:
1522 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1523 case AV_CODEC_ID_PCM_U32BE:
1524 case AV_CODEC_ID_PCM_U32LE:
1525 case AV_CODEC_ID_PCM_F32BE:
1526 case AV_CODEC_ID_PCM_F32LE:
1527 case AV_CODEC_ID_PCM_F24LE:
1528 case AV_CODEC_ID_PCM_F16LE:
1530 case AV_CODEC_ID_PCM_F64BE:
1531 case AV_CODEC_ID_PCM_F64LE:
1532 case AV_CODEC_ID_PCM_S64BE:
1533 case AV_CODEC_ID_PCM_S64LE:
1540 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1542 static const enum AVCodecID map[][2] = {
1543 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1544 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1545 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1546 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1547 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1548 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1549 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1550 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1551 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1552 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1553 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1555 if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1556 return AV_CODEC_ID_NONE;
1557 if (be < 0 || be > 1)
1559 return map[fmt][be];
1562 int av_get_bits_per_sample(enum AVCodecID codec_id)
1565 case AV_CODEC_ID_ADPCM_SBPRO_2:
1567 case AV_CODEC_ID_ADPCM_SBPRO_3:
1569 case AV_CODEC_ID_ADPCM_SBPRO_4:
1570 case AV_CODEC_ID_ADPCM_IMA_WAV:
1571 case AV_CODEC_ID_ADPCM_IMA_QT:
1572 case AV_CODEC_ID_ADPCM_SWF:
1573 case AV_CODEC_ID_ADPCM_MS:
1576 return av_get_exact_bits_per_sample(codec_id);
1580 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1581 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1582 uint8_t * extradata, int frame_size, int frame_bytes)
1584 int bps = av_get_exact_bits_per_sample(id);
1585 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1587 /* codecs with an exact constant bits per sample */
1588 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1589 return (frame_bytes * 8LL) / (bps * ch);
1590 bps = bits_per_coded_sample;
1592 /* codecs with a fixed packet duration */
1594 case AV_CODEC_ID_ADPCM_ADX: return 32;
1595 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1596 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1597 case AV_CODEC_ID_AMR_NB:
1598 case AV_CODEC_ID_EVRC:
1599 case AV_CODEC_ID_GSM:
1600 case AV_CODEC_ID_QCELP:
1601 case AV_CODEC_ID_RA_288: return 160;
1602 case AV_CODEC_ID_AMR_WB:
1603 case AV_CODEC_ID_GSM_MS: return 320;
1604 case AV_CODEC_ID_MP1: return 384;
1605 case AV_CODEC_ID_ATRAC1: return 512;
1606 case AV_CODEC_ID_ATRAC9:
1607 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1608 case AV_CODEC_ID_ATRAC3P: return 2048;
1609 case AV_CODEC_ID_MP2:
1610 case AV_CODEC_ID_MUSEPACK7: return 1152;
1611 case AV_CODEC_ID_AC3: return 1536;
1615 /* calc from sample rate */
1616 if (id == AV_CODEC_ID_TTA)
1617 return 256 * sr / 245;
1618 else if (id == AV_CODEC_ID_DST)
1619 return 588 * sr / 44100;
1622 /* calc from sample rate and channels */
1623 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1624 return (480 << (sr / 22050)) / ch;
1627 if (id == AV_CODEC_ID_MP3)
1628 return sr <= 24000 ? 576 : 1152;
1632 /* calc from block_align */
1633 if (id == AV_CODEC_ID_SIPR) {
1635 case 20: return 160;
1636 case 19: return 144;
1637 case 29: return 288;
1638 case 37: return 480;
1640 } else if (id == AV_CODEC_ID_ILBC) {
1642 case 38: return 160;
1643 case 50: return 240;
1648 if (frame_bytes > 0) {
1649 /* calc from frame_bytes only */
1650 if (id == AV_CODEC_ID_TRUESPEECH)
1651 return 240 * (frame_bytes / 32);
1652 if (id == AV_CODEC_ID_NELLYMOSER)
1653 return 256 * (frame_bytes / 64);
1654 if (id == AV_CODEC_ID_RA_144)
1655 return 160 * (frame_bytes / 20);
1658 /* calc from frame_bytes and bits_per_coded_sample */
1659 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1660 return frame_bytes * 8 / bps;
1663 if (ch > 0 && ch < INT_MAX/16) {
1664 /* calc from frame_bytes and channels */
1666 case AV_CODEC_ID_ADPCM_AFC:
1667 return frame_bytes / (9 * ch) * 16;
1668 case AV_CODEC_ID_ADPCM_PSX:
1669 case AV_CODEC_ID_ADPCM_DTK:
1670 return frame_bytes / (16 * ch) * 28;
1671 case AV_CODEC_ID_ADPCM_4XM:
1672 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1673 case AV_CODEC_ID_ADPCM_IMA_ISS:
1674 return (frame_bytes - 4 * ch) * 2 / ch;
1675 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1676 return (frame_bytes - 4) * 2 / ch;
1677 case AV_CODEC_ID_ADPCM_IMA_AMV:
1678 return (frame_bytes - 8) * 2 / ch;
1679 case AV_CODEC_ID_ADPCM_THP:
1680 case AV_CODEC_ID_ADPCM_THP_LE:
1682 return frame_bytes * 14 / (8 * ch);
1684 case AV_CODEC_ID_ADPCM_XA:
1685 return (frame_bytes / 128) * 224 / ch;
1686 case AV_CODEC_ID_INTERPLAY_DPCM:
1687 return (frame_bytes - 6 - ch) / ch;
1688 case AV_CODEC_ID_ROQ_DPCM:
1689 return (frame_bytes - 8) / ch;
1690 case AV_CODEC_ID_XAN_DPCM:
1691 return (frame_bytes - 2 * ch) / ch;
1692 case AV_CODEC_ID_MACE3:
1693 return 3 * frame_bytes / ch;
1694 case AV_CODEC_ID_MACE6:
1695 return 6 * frame_bytes / ch;
1696 case AV_CODEC_ID_PCM_LXF:
1697 return 2 * (frame_bytes / (5 * ch));
1698 case AV_CODEC_ID_IAC:
1699 case AV_CODEC_ID_IMC:
1700 return 4 * frame_bytes / ch;
1704 /* calc from frame_bytes, channels, and codec_tag */
1705 if (id == AV_CODEC_ID_SOL_DPCM) {
1707 return frame_bytes / ch;
1709 return frame_bytes * 2 / ch;
1714 /* calc from frame_bytes, channels, and block_align */
1715 int blocks = frame_bytes / ba;
1717 case AV_CODEC_ID_ADPCM_IMA_WAV:
1718 if (bps < 2 || bps > 5)
1720 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1721 case AV_CODEC_ID_ADPCM_IMA_DK3:
1722 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1723 case AV_CODEC_ID_ADPCM_IMA_DK4:
1724 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1725 case AV_CODEC_ID_ADPCM_IMA_RAD:
1726 return blocks * ((ba - 4 * ch) * 2 / ch);
1727 case AV_CODEC_ID_ADPCM_MS:
1728 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1729 case AV_CODEC_ID_ADPCM_MTAF:
1730 return blocks * (ba - 16) * 2 / ch;
1735 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1737 case AV_CODEC_ID_PCM_DVD:
1738 if(bps<4 || frame_bytes<3)
1740 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1741 case AV_CODEC_ID_PCM_BLURAY:
1742 if(bps<4 || frame_bytes<4)
1744 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1745 case AV_CODEC_ID_S302M:
1746 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1752 /* Fall back on using frame_size */
1753 if (frame_size > 1 && frame_bytes)
1756 //For WMA we currently have no other means to calculate duration thus we
1757 //do it here by assuming CBR, which is true for all known cases.
1758 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1759 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1760 return (frame_bytes * 8LL * sr) / bitrate;
1766 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1768 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1769 avctx->channels, avctx->block_align,
1770 avctx->codec_tag, avctx->bits_per_coded_sample,
1771 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1775 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1777 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1778 par->channels, par->block_align,
1779 par->codec_tag, par->bits_per_coded_sample,
1780 par->bit_rate, par->extradata, par->frame_size,
1785 int ff_thread_init(AVCodecContext *s)
1792 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1806 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1809 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1813 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1816 if (!codec->hw_configs || index < 0)
1818 for (i = 0; i <= index; i++)
1819 if (!codec->hw_configs[i])
1821 return &codec->hw_configs[index]->public;
1824 #if FF_API_USER_VISIBLE_AVHWACCEL
1825 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1830 void av_register_hwaccel(AVHWAccel *hwaccel)
1836 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1842 unsigned int avpriv_toupper4(unsigned int x)
1844 return av_toupper(x & 0xFF) +
1845 (av_toupper((x >> 8) & 0xFF) << 8) +
1846 (av_toupper((x >> 16) & 0xFF) << 16) +
1847 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1850 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
1854 dst->owner[0] = src->owner[0];
1855 dst->owner[1] = src->owner[1];
1857 ret = av_frame_ref(dst->f, src->f);
1861 av_assert0(!dst->progress);
1863 if (src->progress &&
1864 !(dst->progress = av_buffer_ref(src->progress))) {
1865 ff_thread_release_buffer(dst->owner[0], dst);
1866 return AVERROR(ENOMEM);
1874 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1876 return ff_get_format(avctx, fmt);
1879 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1881 f->owner[0] = f->owner[1] = avctx;
1882 return ff_get_buffer(avctx, f->f, flags);
1885 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1888 av_frame_unref(f->f);
1891 void ff_thread_finish_setup(AVCodecContext *avctx)
1895 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1899 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1903 int ff_thread_can_start_frame(AVCodecContext *avctx)
1908 int ff_alloc_entries(AVCodecContext *avctx, int count)
1913 void ff_reset_entries(AVCodecContext *avctx)
1917 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1921 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1927 int avcodec_is_open(AVCodecContext *s)
1929 return !!s->internal;
1932 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1937 ret = av_bprint_finalize(buf, &str);
1940 if (!av_bprint_is_complete(buf)) {
1942 return AVERROR(ENOMEM);
1945 avctx->extradata = str;
1946 /* Note: the string is NUL terminated (so extradata can be read as a
1947 * string), but the ending character is not accounted in the size (in
1948 * binary formats you are likely not supposed to mux that character). When
1949 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1951 avctx->extradata_size = buf->len;
1955 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1957 uint32_t *av_restrict state)
1961 av_assert0(p <= end);
1965 for (i = 0; i < 3; i++) {
1966 uint32_t tmp = *state << 8;
1967 *state = tmp + *(p++);
1968 if (tmp == 0x100 || p == end)
1973 if (p[-1] > 1 ) p += 3;
1974 else if (p[-2] ) p += 2;
1975 else if (p[-3]|(p[-1]-1)) p++;
1982 p = FFMIN(p, end) - 4;
1983 *state = AV_RB32(p);
1988 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
1990 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1995 *size = sizeof(*props);
1997 props->vbv_delay = UINT64_MAX;
2002 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2004 AVPacketSideData *tmp;
2005 AVCPBProperties *props;
2009 for (i = 0; i < avctx->nb_coded_side_data; i++)
2010 if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
2011 return (AVCPBProperties *)avctx->coded_side_data[i].data;
2013 props = av_cpb_properties_alloc(&size);
2017 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2023 avctx->coded_side_data = tmp;
2024 avctx->nb_coded_side_data++;
2026 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2027 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2028 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2033 static void codec_parameters_reset(AVCodecParameters *par)
2035 av_freep(&par->extradata);
2037 memset(par, 0, sizeof(*par));
2039 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2040 par->codec_id = AV_CODEC_ID_NONE;
2042 par->field_order = AV_FIELD_UNKNOWN;
2043 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2044 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2045 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2046 par->color_space = AVCOL_SPC_UNSPECIFIED;
2047 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2048 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2049 par->profile = FF_PROFILE_UNKNOWN;
2050 par->level = FF_LEVEL_UNKNOWN;
2053 AVCodecParameters *avcodec_parameters_alloc(void)
2055 AVCodecParameters *par = av_mallocz(sizeof(*par));
2059 codec_parameters_reset(par);
2063 void avcodec_parameters_free(AVCodecParameters **ppar)
2065 AVCodecParameters *par = *ppar;
2069 codec_parameters_reset(par);
2074 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2076 codec_parameters_reset(dst);
2077 memcpy(dst, src, sizeof(*dst));
2079 dst->extradata = NULL;
2080 dst->extradata_size = 0;
2081 if (src->extradata) {
2082 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2083 if (!dst->extradata)
2084 return AVERROR(ENOMEM);
2085 memcpy(dst->extradata, src->extradata, src->extradata_size);
2086 dst->extradata_size = src->extradata_size;
2092 int avcodec_parameters_from_context(AVCodecParameters *par,
2093 const AVCodecContext *codec)
2095 codec_parameters_reset(par);
2097 par->codec_type = codec->codec_type;
2098 par->codec_id = codec->codec_id;
2099 par->codec_tag = codec->codec_tag;
2101 par->bit_rate = codec->bit_rate;
2102 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2103 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2104 par->profile = codec->profile;
2105 par->level = codec->level;
2107 switch (par->codec_type) {
2108 case AVMEDIA_TYPE_VIDEO:
2109 par->format = codec->pix_fmt;
2110 par->width = codec->width;
2111 par->height = codec->height;
2112 par->field_order = codec->field_order;
2113 par->color_range = codec->color_range;
2114 par->color_primaries = codec->color_primaries;
2115 par->color_trc = codec->color_trc;
2116 par->color_space = codec->colorspace;
2117 par->chroma_location = codec->chroma_sample_location;
2118 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2119 par->video_delay = codec->has_b_frames;
2121 case AVMEDIA_TYPE_AUDIO:
2122 par->format = codec->sample_fmt;
2123 par->channel_layout = codec->channel_layout;
2124 par->channels = codec->channels;
2125 par->sample_rate = codec->sample_rate;
2126 par->block_align = codec->block_align;
2127 par->frame_size = codec->frame_size;
2128 par->initial_padding = codec->initial_padding;
2129 par->trailing_padding = codec->trailing_padding;
2130 par->seek_preroll = codec->seek_preroll;
2132 case AVMEDIA_TYPE_SUBTITLE:
2133 par->width = codec->width;
2134 par->height = codec->height;
2138 if (codec->extradata) {
2139 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2140 if (!par->extradata)
2141 return AVERROR(ENOMEM);
2142 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2143 par->extradata_size = codec->extradata_size;
2149 int avcodec_parameters_to_context(AVCodecContext *codec,
2150 const AVCodecParameters *par)
2152 codec->codec_type = par->codec_type;
2153 codec->codec_id = par->codec_id;
2154 codec->codec_tag = par->codec_tag;
2156 codec->bit_rate = par->bit_rate;
2157 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2158 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2159 codec->profile = par->profile;
2160 codec->level = par->level;
2162 switch (par->codec_type) {
2163 case AVMEDIA_TYPE_VIDEO:
2164 codec->pix_fmt = par->format;
2165 codec->width = par->width;
2166 codec->height = par->height;
2167 codec->field_order = par->field_order;
2168 codec->color_range = par->color_range;
2169 codec->color_primaries = par->color_primaries;
2170 codec->color_trc = par->color_trc;
2171 codec->colorspace = par->color_space;
2172 codec->chroma_sample_location = par->chroma_location;
2173 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2174 codec->has_b_frames = par->video_delay;
2176 case AVMEDIA_TYPE_AUDIO:
2177 codec->sample_fmt = par->format;
2178 codec->channel_layout = par->channel_layout;
2179 codec->channels = par->channels;
2180 codec->sample_rate = par->sample_rate;
2181 codec->block_align = par->block_align;
2182 codec->frame_size = par->frame_size;
2184 codec->initial_padding = par->initial_padding;
2185 codec->trailing_padding = par->trailing_padding;
2186 codec->seek_preroll = par->seek_preroll;
2188 case AVMEDIA_TYPE_SUBTITLE:
2189 codec->width = par->width;
2190 codec->height = par->height;
2194 if (par->extradata) {
2195 av_freep(&codec->extradata);
2196 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2197 if (!codec->extradata)
2198 return AVERROR(ENOMEM);
2199 memcpy(codec->extradata, par->extradata, par->extradata_size);
2200 codec->extradata_size = par->extradata_size;
2206 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2207 void **data, size_t *sei_size)
2209 AVFrameSideData *side_data = NULL;
2213 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2220 *sei_size = side_data->size + 11;
2221 *data = av_mallocz(*sei_size + prefix_len);
2223 return AVERROR(ENOMEM);
2224 sei_data = (uint8_t*)*data + prefix_len;
2232 * 'GA94' is standard in North America for ATSC, but hard coding
2233 * this style may not be the right thing to do -- other formats
2234 * do exist. This information is not available in the side_data
2235 * so we are going with this right now.
2237 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2239 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2242 memcpy(sei_data + 10, side_data->data, side_data->size);
2244 sei_data[side_data->size+10] = 255;
2249 static unsigned bcd2uint(uint8_t bcd)
2251 unsigned low = bcd & 0xf;
2252 unsigned high = bcd >> 4;
2253 if (low > 9 || high > 9)
2255 return low + 10*high;
2258 int ff_alloc_timecode_sei(const AVFrame *frame, size_t prefix_len,
2259 void **data, size_t *sei_size)
2261 AVFrameSideData *sd = NULL;
2268 sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE);
2274 tc = (uint32_t*)sd->data;
2277 *sei_size = sizeof(uint32_t) * 4;
2278 *data = av_mallocz(*sei_size + prefix_len);
2280 return AVERROR(ENOMEM);
2281 sei_data = (uint8_t*)*data + prefix_len;
2283 init_put_bits(&pb, sei_data, *sei_size);
2284 put_bits(&pb, 2, m); // num_clock_ts
2286 for (int j = 1; j <= m; j++) {
2287 uint32_t tcsmpte = tc[j];
2288 unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2289 unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2290 unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2291 unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2292 unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2294 put_bits(&pb, 1, 1); // clock_timestamp_flag
2295 put_bits(&pb, 1, 1); // units_field_based_flag
2296 put_bits(&pb, 5, 0); // counting_type
2297 put_bits(&pb, 1, 1); // full_timestamp_flag
2298 put_bits(&pb, 1, 0); // discontinuity_flag
2299 put_bits(&pb, 1, drop);
2300 put_bits(&pb, 9, ff);
2301 put_bits(&pb, 6, ss);
2302 put_bits(&pb, 6, mm);
2303 put_bits(&pb, 5, hh);
2304 put_bits(&pb, 5, 0);
2306 flush_put_bits(&pb);
2311 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2313 AVRational framerate = avctx->framerate;
2314 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2317 if (!(framerate.num && framerate.den))
2318 framerate = av_inv_q(avctx->time_base);
2319 if (!(framerate.num && framerate.den))
2322 if (!bits_per_coded_sample) {
2323 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2324 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2326 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2327 framerate.num / framerate.den;
2332 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2333 const int * array_valid_values, int default_value)
2338 ref_val = array_valid_values[i];
2339 if (ref_val == INT_MAX)
2345 /* val is not a valid value */
2346 av_log(ctx, AV_LOG_DEBUG,
2347 "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2348 return default_value;