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"
53 #include "packet_internal.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 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
72 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
75 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
80 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
81 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
84 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
87 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
92 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
93 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
96 int av_codec_is_encoder(const AVCodec *codec)
98 return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
101 int av_codec_is_decoder(const AVCodec *codec)
103 return codec && (codec->decode || codec->receive_frame);
106 int ff_set_dimensions(AVCodecContext *s, int width, int height)
108 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
113 s->coded_width = width;
114 s->coded_height = height;
115 s->width = AV_CEIL_RSHIFT(width, s->lowres);
116 s->height = AV_CEIL_RSHIFT(height, s->lowres);
121 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
123 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
126 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
128 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
131 avctx->sample_aspect_ratio = sar;
136 int ff_side_data_update_matrix_encoding(AVFrame *frame,
137 enum AVMatrixEncoding matrix_encoding)
139 AVFrameSideData *side_data;
140 enum AVMatrixEncoding *data;
142 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
144 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
145 sizeof(enum AVMatrixEncoding));
148 return AVERROR(ENOMEM);
150 data = (enum AVMatrixEncoding*)side_data->data;
151 *data = matrix_encoding;
156 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
157 int linesize_align[AV_NUM_DATA_POINTERS])
162 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
165 w_align = 1 << desc->log2_chroma_w;
166 h_align = 1 << desc->log2_chroma_h;
169 switch (s->pix_fmt) {
170 case AV_PIX_FMT_YUV420P:
171 case AV_PIX_FMT_YUYV422:
172 case AV_PIX_FMT_YVYU422:
173 case AV_PIX_FMT_UYVY422:
174 case AV_PIX_FMT_YUV422P:
175 case AV_PIX_FMT_YUV440P:
176 case AV_PIX_FMT_YUV444P:
177 case AV_PIX_FMT_GBRP:
178 case AV_PIX_FMT_GBRAP:
179 case AV_PIX_FMT_GRAY8:
180 case AV_PIX_FMT_GRAY16BE:
181 case AV_PIX_FMT_GRAY16LE:
182 case AV_PIX_FMT_YUVJ420P:
183 case AV_PIX_FMT_YUVJ422P:
184 case AV_PIX_FMT_YUVJ440P:
185 case AV_PIX_FMT_YUVJ444P:
186 case AV_PIX_FMT_YUVA420P:
187 case AV_PIX_FMT_YUVA422P:
188 case AV_PIX_FMT_YUVA444P:
189 case AV_PIX_FMT_YUV420P9LE:
190 case AV_PIX_FMT_YUV420P9BE:
191 case AV_PIX_FMT_YUV420P10LE:
192 case AV_PIX_FMT_YUV420P10BE:
193 case AV_PIX_FMT_YUV420P12LE:
194 case AV_PIX_FMT_YUV420P12BE:
195 case AV_PIX_FMT_YUV420P14LE:
196 case AV_PIX_FMT_YUV420P14BE:
197 case AV_PIX_FMT_YUV420P16LE:
198 case AV_PIX_FMT_YUV420P16BE:
199 case AV_PIX_FMT_YUVA420P9LE:
200 case AV_PIX_FMT_YUVA420P9BE:
201 case AV_PIX_FMT_YUVA420P10LE:
202 case AV_PIX_FMT_YUVA420P10BE:
203 case AV_PIX_FMT_YUVA420P16LE:
204 case AV_PIX_FMT_YUVA420P16BE:
205 case AV_PIX_FMT_YUV422P9LE:
206 case AV_PIX_FMT_YUV422P9BE:
207 case AV_PIX_FMT_YUV422P10LE:
208 case AV_PIX_FMT_YUV422P10BE:
209 case AV_PIX_FMT_YUV422P12LE:
210 case AV_PIX_FMT_YUV422P12BE:
211 case AV_PIX_FMT_YUV422P14LE:
212 case AV_PIX_FMT_YUV422P14BE:
213 case AV_PIX_FMT_YUV422P16LE:
214 case AV_PIX_FMT_YUV422P16BE:
215 case AV_PIX_FMT_YUVA422P9LE:
216 case AV_PIX_FMT_YUVA422P9BE:
217 case AV_PIX_FMT_YUVA422P10LE:
218 case AV_PIX_FMT_YUVA422P10BE:
219 case AV_PIX_FMT_YUVA422P12LE:
220 case AV_PIX_FMT_YUVA422P12BE:
221 case AV_PIX_FMT_YUVA422P16LE:
222 case AV_PIX_FMT_YUVA422P16BE:
223 case AV_PIX_FMT_YUV440P10LE:
224 case AV_PIX_FMT_YUV440P10BE:
225 case AV_PIX_FMT_YUV440P12LE:
226 case AV_PIX_FMT_YUV440P12BE:
227 case AV_PIX_FMT_YUV444P9LE:
228 case AV_PIX_FMT_YUV444P9BE:
229 case AV_PIX_FMT_YUV444P10LE:
230 case AV_PIX_FMT_YUV444P10BE:
231 case AV_PIX_FMT_YUV444P12LE:
232 case AV_PIX_FMT_YUV444P12BE:
233 case AV_PIX_FMT_YUV444P14LE:
234 case AV_PIX_FMT_YUV444P14BE:
235 case AV_PIX_FMT_YUV444P16LE:
236 case AV_PIX_FMT_YUV444P16BE:
237 case AV_PIX_FMT_YUVA444P9LE:
238 case AV_PIX_FMT_YUVA444P9BE:
239 case AV_PIX_FMT_YUVA444P10LE:
240 case AV_PIX_FMT_YUVA444P10BE:
241 case AV_PIX_FMT_YUVA444P12LE:
242 case AV_PIX_FMT_YUVA444P12BE:
243 case AV_PIX_FMT_YUVA444P16LE:
244 case AV_PIX_FMT_YUVA444P16BE:
245 case AV_PIX_FMT_GBRP9LE:
246 case AV_PIX_FMT_GBRP9BE:
247 case AV_PIX_FMT_GBRP10LE:
248 case AV_PIX_FMT_GBRP10BE:
249 case AV_PIX_FMT_GBRP12LE:
250 case AV_PIX_FMT_GBRP12BE:
251 case AV_PIX_FMT_GBRP14LE:
252 case AV_PIX_FMT_GBRP14BE:
253 case AV_PIX_FMT_GBRP16LE:
254 case AV_PIX_FMT_GBRP16BE:
255 case AV_PIX_FMT_GBRAP12LE:
256 case AV_PIX_FMT_GBRAP12BE:
257 case AV_PIX_FMT_GBRAP16LE:
258 case AV_PIX_FMT_GBRAP16BE:
259 w_align = 16; //FIXME assume 16 pixel per macroblock
260 h_align = 16 * 2; // interlaced needs 2 macroblocks height
262 case AV_PIX_FMT_YUV411P:
263 case AV_PIX_FMT_YUVJ411P:
264 case AV_PIX_FMT_UYYVYY411:
268 case AV_PIX_FMT_YUV410P:
269 if (s->codec_id == AV_CODEC_ID_SVQ1) {
274 case AV_PIX_FMT_RGB555:
275 if (s->codec_id == AV_CODEC_ID_RPZA) {
279 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
284 case AV_PIX_FMT_PAL8:
285 case AV_PIX_FMT_BGR8:
286 case AV_PIX_FMT_RGB8:
287 if (s->codec_id == AV_CODEC_ID_SMC ||
288 s->codec_id == AV_CODEC_ID_CINEPAK) {
292 if (s->codec_id == AV_CODEC_ID_JV ||
293 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
298 case AV_PIX_FMT_BGR24:
299 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
300 (s->codec_id == AV_CODEC_ID_ZLIB)) {
305 case AV_PIX_FMT_RGB24:
306 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
315 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
316 w_align = FFMAX(w_align, 8);
319 *width = FFALIGN(*width, w_align);
320 *height = FFALIGN(*height, h_align);
321 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
322 s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
323 s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
325 // some of the optimized chroma MC reads one line too much
326 // which is also done in mpeg decoders with lowres > 0
329 // H.264 uses edge emulation for out of frame motion vectors, for this
330 // it requires a temporary area large enough to hold a 21x21 block,
331 // increasing witdth ensure that the temporary area is large enough,
332 // the next rounded up width is 32
333 *width = FFMAX(*width, 32);
336 for (i = 0; i < 4; i++)
337 linesize_align[i] = STRIDE_ALIGN;
340 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
342 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
343 int chroma_shift = desc->log2_chroma_w;
344 int linesize_align[AV_NUM_DATA_POINTERS];
347 avcodec_align_dimensions2(s, width, height, linesize_align);
348 align = FFMAX(linesize_align[0], linesize_align[3]);
349 linesize_align[1] <<= chroma_shift;
350 linesize_align[2] <<= chroma_shift;
351 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
352 *width = FFALIGN(*width, align);
355 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
357 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
358 return AVERROR(EINVAL);
361 *xpos = (pos&1) * 128;
362 *ypos = ((pos>>1)^(pos<4)) * 128;
367 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
371 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
372 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
375 return AVCHROMA_LOC_UNSPECIFIED;
378 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
379 enum AVSampleFormat sample_fmt, const uint8_t *buf,
380 int buf_size, int align)
382 int ch, planar, needed_size, ret = 0;
384 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
385 frame->nb_samples, sample_fmt,
387 if (buf_size < needed_size)
388 return AVERROR(EINVAL);
390 planar = av_sample_fmt_is_planar(sample_fmt);
391 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
392 if (!(frame->extended_data = av_mallocz_array(nb_channels,
393 sizeof(*frame->extended_data))))
394 return AVERROR(ENOMEM);
396 frame->extended_data = frame->data;
399 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
400 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
401 sample_fmt, align)) < 0) {
402 if (frame->extended_data != frame->data)
403 av_freep(&frame->extended_data);
406 if (frame->extended_data != frame->data) {
407 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
408 frame->data[ch] = frame->extended_data[ch];
414 void ff_color_frame(AVFrame *frame, const int c[4])
416 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
419 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
421 for (p = 0; p<desc->nb_components; p++) {
422 uint8_t *dst = frame->data[p];
423 int is_chroma = p == 1 || p == 2;
424 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
425 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
426 if (desc->comp[0].depth >= 9) {
427 ((uint16_t*)dst)[0] = c[p];
428 av_memcpy_backptr(dst + 2, 2, bytes - 2);
429 dst += frame->linesize[p];
430 for (y = 1; y < height; y++) {
431 memcpy(dst, frame->data[p], 2*bytes);
432 dst += frame->linesize[p];
435 for (y = 0; y < height; y++) {
436 memset(dst, c[p], bytes);
437 dst += frame->linesize[p];
443 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
447 for (i = 0; i < count; i++) {
448 int r = func(c, (char *)arg + i * size);
456 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
460 for (i = 0; i < count; i++) {
461 int r = func(c, arg, i, 0);
469 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
472 while (tags->pix_fmt >= 0) {
473 if (tags->fourcc == fourcc)
474 return tags->pix_fmt;
477 return AV_PIX_FMT_NONE;
480 #if FF_API_CODEC_GET_SET
481 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
482 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
483 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
484 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
485 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
487 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
489 return codec->properties;
492 int av_codec_get_max_lowres(const AVCodec *codec)
494 return codec->max_lowres;
498 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
499 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
502 static int64_t get_bit_rate(AVCodecContext *ctx)
507 switch (ctx->codec_type) {
508 case AVMEDIA_TYPE_VIDEO:
509 case AVMEDIA_TYPE_DATA:
510 case AVMEDIA_TYPE_SUBTITLE:
511 case AVMEDIA_TYPE_ATTACHMENT:
512 bit_rate = ctx->bit_rate;
514 case AVMEDIA_TYPE_AUDIO:
515 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
516 if (bits_per_sample) {
517 bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
518 if (bit_rate > INT64_MAX / bits_per_sample) {
521 bit_rate *= bits_per_sample;
523 bit_rate = ctx->bit_rate;
533 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
535 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
536 ff_mutex_lock(&codec_mutex);
539 static void ff_unlock_avcodec(const AVCodec *codec)
541 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
542 ff_mutex_unlock(&codec_mutex);
545 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
548 int codec_init_ok = 0;
549 AVDictionary *tmp = NULL;
550 const AVPixFmtDescriptor *pixdesc;
551 AVCodecInternal *avci;
553 if (avcodec_is_open(avctx))
556 if (!codec && !avctx->codec) {
557 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
558 return AVERROR(EINVAL);
560 if (codec && avctx->codec && codec != avctx->codec) {
561 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
562 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
563 return AVERROR(EINVAL);
566 codec = avctx->codec;
568 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
569 return AVERROR(EINVAL);
572 av_dict_copy(&tmp, *options, 0);
574 ff_lock_avcodec(avctx, codec);
576 avci = av_mallocz(sizeof(*avci));
578 ret = AVERROR(ENOMEM);
581 avctx->internal = avci;
583 avci->to_free = av_frame_alloc();
584 avci->compat_decode_frame = av_frame_alloc();
585 avci->compat_encode_packet = av_packet_alloc();
586 avci->buffer_frame = av_frame_alloc();
587 avci->buffer_pkt = av_packet_alloc();
588 avci->es.in_frame = av_frame_alloc();
589 avci->ds.in_pkt = av_packet_alloc();
590 avci->last_pkt_props = av_packet_alloc();
591 if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
592 !avci->buffer_frame || !avci->buffer_pkt ||
593 !avci->es.in_frame || !avci->ds.in_pkt ||
594 !avci->to_free || !avci->last_pkt_props) {
595 ret = AVERROR(ENOMEM);
599 avci->skip_samples_multiplier = 1;
601 if (codec->priv_data_size > 0) {
602 if (!avctx->priv_data) {
603 avctx->priv_data = av_mallocz(codec->priv_data_size);
604 if (!avctx->priv_data) {
605 ret = AVERROR(ENOMEM);
608 if (codec->priv_class) {
609 *(const AVClass **)avctx->priv_data = codec->priv_class;
610 av_opt_set_defaults(avctx->priv_data);
613 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
616 avctx->priv_data = NULL;
618 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
621 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
622 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
623 ret = AVERROR(EINVAL);
627 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
628 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
629 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
630 if (avctx->coded_width && avctx->coded_height)
631 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
632 else if (avctx->width && avctx->height)
633 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
638 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
639 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
640 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
641 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
642 ff_set_dimensions(avctx, 0, 0);
645 if (avctx->width > 0 && avctx->height > 0) {
646 if (av_image_check_sar(avctx->width, avctx->height,
647 avctx->sample_aspect_ratio) < 0) {
648 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
649 avctx->sample_aspect_ratio.num,
650 avctx->sample_aspect_ratio.den);
651 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
655 /* if the decoder init function was already called previously,
656 * free the already allocated subtitle_header before overwriting it */
657 if (av_codec_is_decoder(codec))
658 av_freep(&avctx->subtitle_header);
660 if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
661 av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
662 ret = AVERROR(EINVAL);
665 if (av_codec_is_decoder(codec) &&
666 codec->type == AVMEDIA_TYPE_AUDIO &&
667 !(codec->capabilities & AV_CODEC_CAP_CHANNEL_CONF) &&
668 avctx->channels == 0) {
669 av_log(avctx, AV_LOG_ERROR, "Decoder requires channel count but channels not set\n");
670 ret = AVERROR(EINVAL);
674 if (avctx->sample_rate < 0) {
675 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
676 ret = AVERROR(EINVAL);
679 if (avctx->block_align < 0) {
680 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
681 ret = AVERROR(EINVAL);
685 #if FF_API_THREAD_SAFE_CALLBACKS
686 FF_DISABLE_DEPRECATION_WARNINGS
687 if ((avctx->thread_type & FF_THREAD_FRAME) &&
688 avctx->get_buffer2 != avcodec_default_get_buffer2 &&
689 !avctx->thread_safe_callbacks) {
690 av_log(avctx, AV_LOG_WARNING, "Requested frame threading with a "
691 "custom get_buffer2() implementation which is not marked as "
692 "thread safe. This is not supported anymore, make your "
693 "callback thread-safe.\n");
695 FF_ENABLE_DEPRECATION_WARNINGS
698 avctx->codec = codec;
699 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
700 avctx->codec_id == AV_CODEC_ID_NONE) {
701 avctx->codec_type = codec->type;
702 avctx->codec_id = codec->id;
704 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
705 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
706 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
707 ret = AVERROR(EINVAL);
710 avctx->frame_number = 0;
711 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
713 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
714 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
715 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
716 const AVCodec *codec2;
717 av_log(avctx, AV_LOG_ERROR,
718 "The %s '%s' is experimental but experimental codecs are not enabled, "
719 "add '-strict %d' if you want to use it.\n",
720 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
721 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
722 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
723 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
724 codec_string, codec2->name);
725 ret = AVERROR_EXPERIMENTAL;
729 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
730 (!avctx->time_base.num || !avctx->time_base.den)) {
731 avctx->time_base.num = 1;
732 avctx->time_base.den = avctx->sample_rate;
736 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
738 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
739 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
740 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
741 ff_lock_avcodec(avctx, codec);
746 if (av_codec_is_decoder(avctx->codec)) {
747 ret = ff_decode_bsfs_init(avctx);
753 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
754 ret = ff_thread_init(avctx);
759 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
760 avctx->thread_count = 1;
762 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
763 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
764 avctx->codec->max_lowres);
765 avctx->lowres = avctx->codec->max_lowres;
768 if (av_codec_is_encoder(avctx->codec)) {
770 #if FF_API_CODED_FRAME
771 FF_DISABLE_DEPRECATION_WARNINGS
772 avctx->coded_frame = av_frame_alloc();
773 if (!avctx->coded_frame) {
774 ret = AVERROR(ENOMEM);
777 FF_ENABLE_DEPRECATION_WARNINGS
780 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
781 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
782 ret = AVERROR(EINVAL);
786 if (avctx->codec->sample_fmts) {
787 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
788 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
790 if (avctx->channels == 1 &&
791 av_get_planar_sample_fmt(avctx->sample_fmt) ==
792 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
793 avctx->sample_fmt = avctx->codec->sample_fmts[i];
797 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
799 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
800 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
801 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
802 ret = AVERROR(EINVAL);
806 if (avctx->codec->pix_fmts) {
807 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
808 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
810 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
811 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
812 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
814 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
815 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
816 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
817 ret = AVERROR(EINVAL);
820 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
821 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
822 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
823 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
824 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
825 avctx->color_range = AVCOL_RANGE_JPEG;
827 if (avctx->codec->supported_samplerates) {
828 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
829 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
831 if (avctx->codec->supported_samplerates[i] == 0) {
832 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
834 ret = AVERROR(EINVAL);
838 if (avctx->sample_rate < 0) {
839 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
841 ret = AVERROR(EINVAL);
844 if (avctx->codec->channel_layouts) {
845 if (!avctx->channel_layout) {
846 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
848 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
849 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
851 if (avctx->codec->channel_layouts[i] == 0) {
853 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
854 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
855 ret = AVERROR(EINVAL);
860 if (avctx->channel_layout && avctx->channels) {
861 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
862 if (channels != avctx->channels) {
864 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
865 av_log(avctx, AV_LOG_ERROR,
866 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
867 buf, channels, avctx->channels);
868 ret = AVERROR(EINVAL);
871 } else if (avctx->channel_layout) {
872 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
874 if (avctx->channels < 0) {
875 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
877 ret = AVERROR(EINVAL);
880 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
881 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
882 if ( avctx->bits_per_raw_sample < 0
883 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
884 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
885 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
886 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
888 if (avctx->width <= 0 || avctx->height <= 0) {
889 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
890 ret = AVERROR(EINVAL);
894 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
895 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
896 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
899 if (!avctx->rc_initial_buffer_occupancy)
900 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
902 if (avctx->ticks_per_frame && avctx->time_base.num &&
903 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
904 av_log(avctx, AV_LOG_ERROR,
905 "ticks_per_frame %d too large for the timebase %d/%d.",
906 avctx->ticks_per_frame,
907 avctx->time_base.num,
908 avctx->time_base.den);
912 if (avctx->hw_frames_ctx) {
913 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
914 if (frames_ctx->format != avctx->pix_fmt) {
915 av_log(avctx, AV_LOG_ERROR,
916 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
917 ret = AVERROR(EINVAL);
920 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
921 avctx->sw_pix_fmt != frames_ctx->sw_format) {
922 av_log(avctx, AV_LOG_ERROR,
923 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
924 "and AVHWFramesContext.sw_format (%s)\n",
925 av_get_pix_fmt_name(avctx->sw_pix_fmt),
926 av_get_pix_fmt_name(frames_ctx->sw_format));
927 ret = AVERROR(EINVAL);
930 avctx->sw_pix_fmt = frames_ctx->sw_format;
934 avctx->pts_correction_num_faulty_pts =
935 avctx->pts_correction_num_faulty_dts = 0;
936 avctx->pts_correction_last_pts =
937 avctx->pts_correction_last_dts = INT64_MIN;
939 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
940 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
941 av_log(avctx, AV_LOG_WARNING,
942 "gray decoding requested but not enabled at configuration time\n");
943 if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
944 avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
947 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
948 || avci->frame_thread_encoder)) {
949 ret = avctx->codec->init(avctx);
959 if (av_codec_is_decoder(avctx->codec)) {
960 if (!avctx->bit_rate)
961 avctx->bit_rate = get_bit_rate(avctx);
962 /* validate channel layout from the decoder */
963 if (avctx->channel_layout) {
964 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
965 if (!avctx->channels)
966 avctx->channels = channels;
967 else if (channels != avctx->channels) {
969 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
970 av_log(avctx, AV_LOG_WARNING,
971 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
972 "ignoring specified channel layout\n",
973 buf, channels, avctx->channels);
974 avctx->channel_layout = 0;
977 if (avctx->channels && avctx->channels < 0 ||
978 avctx->channels > FF_SANE_NB_CHANNELS) {
979 ret = AVERROR(EINVAL);
982 if (avctx->bits_per_coded_sample < 0) {
983 ret = AVERROR(EINVAL);
986 if (avctx->sub_charenc) {
987 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
988 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
989 "supported with subtitles codecs\n");
990 ret = AVERROR(EINVAL);
992 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
993 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
994 "subtitles character encoding will be ignored\n",
995 avctx->codec_descriptor->name);
996 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
998 /* input character encoding is set for a text based subtitle
999 * codec at this point */
1000 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1001 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1003 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1005 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1006 if (cd == (iconv_t)-1) {
1007 ret = AVERROR(errno);
1008 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1009 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1014 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1015 "conversion needs a libavcodec built with iconv support "
1016 "for this codec\n");
1017 ret = AVERROR(ENOSYS);
1024 #if FF_API_AVCTX_TIMEBASE
1025 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1026 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1029 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1030 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1034 ff_unlock_avcodec(codec);
1036 av_dict_free(options);
1042 if (avctx->codec && avctx->codec->close &&
1043 (codec_init_ok > 0 || (codec_init_ok < 0 &&
1044 avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
1045 avctx->codec->close(avctx);
1047 if (HAVE_THREADS && avci->thread_ctx)
1048 ff_thread_free(avctx);
1050 if (codec->priv_class && avctx->priv_data)
1051 av_opt_free(avctx->priv_data);
1054 if (av_codec_is_encoder(avctx->codec)) {
1055 #if FF_API_CODED_FRAME
1056 FF_DISABLE_DEPRECATION_WARNINGS
1057 av_frame_free(&avctx->coded_frame);
1058 FF_ENABLE_DEPRECATION_WARNINGS
1060 av_freep(&avctx->extradata);
1061 avctx->extradata_size = 0;
1065 av_freep(&avctx->priv_data);
1066 av_freep(&avctx->subtitle_header);
1068 av_frame_free(&avci->to_free);
1069 av_frame_free(&avci->compat_decode_frame);
1070 av_frame_free(&avci->buffer_frame);
1071 av_packet_free(&avci->compat_encode_packet);
1072 av_packet_free(&avci->buffer_pkt);
1073 av_packet_free(&avci->last_pkt_props);
1075 av_packet_free(&avci->ds.in_pkt);
1076 av_frame_free(&avci->es.in_frame);
1077 av_bsf_free(&avci->bsf);
1079 av_buffer_unref(&avci->pool);
1081 avctx->internal = NULL;
1082 avctx->codec = NULL;
1086 void avcodec_flush_buffers(AVCodecContext *avctx)
1088 AVCodecInternal *avci = avctx->internal;
1090 if (av_codec_is_encoder(avctx->codec)) {
1091 int caps = avctx->codec->capabilities;
1093 if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1094 // Only encoders that explicitly declare support for it can be
1095 // flushed. Otherwise, this is a no-op.
1096 av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1097 "that doesn't support it\n");
1101 // We haven't implemented flushing for frame-threaded encoders.
1102 av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
1106 avci->draining_done = 0;
1107 avci->nb_draining_errors = 0;
1108 av_frame_unref(avci->buffer_frame);
1109 av_frame_unref(avci->compat_decode_frame);
1110 av_packet_unref(avci->compat_encode_packet);
1111 av_packet_unref(avci->buffer_pkt);
1113 av_packet_unref(avci->last_pkt_props);
1114 avpriv_packet_list_free(&avci->pkt_props,
1115 &avci->pkt_props_tail);
1117 av_frame_unref(avci->es.in_frame);
1118 av_packet_unref(avci->ds.in_pkt);
1120 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1121 ff_thread_flush(avctx);
1122 else if (avctx->codec->flush)
1123 avctx->codec->flush(avctx);
1125 avctx->pts_correction_last_pts =
1126 avctx->pts_correction_last_dts = INT64_MIN;
1128 if (av_codec_is_decoder(avctx->codec))
1129 av_bsf_flush(avci->bsf);
1131 if (!avctx->refcounted_frames)
1132 av_frame_unref(avci->to_free);
1135 void avsubtitle_free(AVSubtitle *sub)
1139 for (i = 0; i < sub->num_rects; i++) {
1140 av_freep(&sub->rects[i]->data[0]);
1141 av_freep(&sub->rects[i]->data[1]);
1142 av_freep(&sub->rects[i]->data[2]);
1143 av_freep(&sub->rects[i]->data[3]);
1144 av_freep(&sub->rects[i]->text);
1145 av_freep(&sub->rects[i]->ass);
1146 av_freep(&sub->rects[i]);
1149 av_freep(&sub->rects);
1151 memset(sub, 0, sizeof(*sub));
1154 av_cold int avcodec_close(AVCodecContext *avctx)
1161 if (avcodec_is_open(avctx)) {
1162 if (CONFIG_FRAME_THREAD_ENCODER &&
1163 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1164 ff_frame_thread_encoder_free(avctx);
1166 if (HAVE_THREADS && avctx->internal->thread_ctx)
1167 ff_thread_free(avctx);
1168 if (avctx->codec && avctx->codec->close)
1169 avctx->codec->close(avctx);
1170 avctx->internal->byte_buffer_size = 0;
1171 av_freep(&avctx->internal->byte_buffer);
1172 av_frame_free(&avctx->internal->to_free);
1173 av_frame_free(&avctx->internal->compat_decode_frame);
1174 av_frame_free(&avctx->internal->buffer_frame);
1175 av_packet_free(&avctx->internal->compat_encode_packet);
1176 av_packet_free(&avctx->internal->buffer_pkt);
1177 av_packet_free(&avctx->internal->last_pkt_props);
1178 avpriv_packet_list_free(&avctx->internal->pkt_props,
1179 &avctx->internal->pkt_props_tail);
1181 av_packet_free(&avctx->internal->ds.in_pkt);
1182 av_frame_free(&avctx->internal->es.in_frame);
1184 av_buffer_unref(&avctx->internal->pool);
1186 if (avctx->hwaccel && avctx->hwaccel->uninit)
1187 avctx->hwaccel->uninit(avctx);
1188 av_freep(&avctx->internal->hwaccel_priv_data);
1190 av_bsf_free(&avctx->internal->bsf);
1192 av_freep(&avctx->internal);
1195 for (i = 0; i < avctx->nb_coded_side_data; i++)
1196 av_freep(&avctx->coded_side_data[i].data);
1197 av_freep(&avctx->coded_side_data);
1198 avctx->nb_coded_side_data = 0;
1200 av_buffer_unref(&avctx->hw_frames_ctx);
1201 av_buffer_unref(&avctx->hw_device_ctx);
1203 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1204 av_opt_free(avctx->priv_data);
1206 av_freep(&avctx->priv_data);
1207 if (av_codec_is_encoder(avctx->codec)) {
1208 av_freep(&avctx->extradata);
1209 #if FF_API_CODED_FRAME
1210 FF_DISABLE_DEPRECATION_WARNINGS
1211 av_frame_free(&avctx->coded_frame);
1212 FF_ENABLE_DEPRECATION_WARNINGS
1215 avctx->codec = NULL;
1216 avctx->active_thread_type = 0;
1221 const char *avcodec_get_name(enum AVCodecID id)
1223 const AVCodecDescriptor *cd;
1224 const AVCodec *codec;
1226 if (id == AV_CODEC_ID_NONE)
1228 cd = avcodec_descriptor_get(id);
1231 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1232 codec = avcodec_find_decoder(id);
1235 codec = avcodec_find_encoder(id);
1238 return "unknown_codec";
1241 #if FF_API_TAG_STRING
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;
1263 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1265 const char *codec_type;
1266 const char *codec_name;
1267 const char *profile = NULL;
1270 AVRational display_aspect_ratio;
1271 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1273 if (!buf || buf_size <= 0)
1275 codec_type = av_get_media_type_string(enc->codec_type);
1276 codec_name = avcodec_get_name(enc->codec_id);
1277 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1279 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1281 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1283 if (enc->codec && strcmp(enc->codec->name, codec_name))
1284 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1287 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1288 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1289 && av_log_get_level() >= AV_LOG_VERBOSE
1291 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1292 ", %d reference frame%s",
1293 enc->refs, enc->refs > 1 ? "s" : "");
1296 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1297 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1299 switch (enc->codec_type) {
1300 case AVMEDIA_TYPE_VIDEO:
1302 char detail[256] = "(";
1304 av_strlcat(buf, separator, buf_size);
1306 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1307 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1308 av_get_pix_fmt_name(enc->pix_fmt));
1309 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1310 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1311 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1312 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1313 av_strlcatf(detail, sizeof(detail), "%s, ",
1314 av_color_range_name(enc->color_range));
1316 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1317 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1318 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1319 if (enc->colorspace != (int)enc->color_primaries ||
1320 enc->colorspace != (int)enc->color_trc) {
1322 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1323 av_color_space_name(enc->colorspace),
1324 av_color_primaries_name(enc->color_primaries),
1325 av_color_transfer_name(enc->color_trc));
1327 av_strlcatf(detail, sizeof(detail), "%s, ",
1328 av_get_colorspace_name(enc->colorspace));
1331 if (enc->field_order != AV_FIELD_UNKNOWN) {
1332 const char *field_order = "progressive";
1333 if (enc->field_order == AV_FIELD_TT)
1334 field_order = "top first";
1335 else if (enc->field_order == AV_FIELD_BB)
1336 field_order = "bottom first";
1337 else if (enc->field_order == AV_FIELD_TB)
1338 field_order = "top coded first (swapped)";
1339 else if (enc->field_order == AV_FIELD_BT)
1340 field_order = "bottom coded first (swapped)";
1342 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1345 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1346 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1347 av_strlcatf(detail, sizeof(detail), "%s, ",
1348 av_chroma_location_name(enc->chroma_sample_location));
1350 if (strlen(detail) > 1) {
1351 detail[strlen(detail) - 2] = 0;
1352 av_strlcatf(buf, buf_size, "%s)", detail);
1357 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1359 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1361 enc->width, enc->height);
1363 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1364 (enc->width != enc->coded_width ||
1365 enc->height != enc->coded_height))
1366 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1367 " (%dx%d)", enc->coded_width, enc->coded_height);
1369 if (enc->sample_aspect_ratio.num) {
1370 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1371 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1372 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1374 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1375 " [SAR %d:%d DAR %d:%d]",
1376 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1377 display_aspect_ratio.num, display_aspect_ratio.den);
1379 if (av_log_get_level() >= AV_LOG_DEBUG) {
1380 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1381 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1383 enc->time_base.num / g, enc->time_base.den / g);
1387 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1388 ", q=%d-%d", enc->qmin, enc->qmax);
1390 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1391 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1392 ", Closed Captions");
1393 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1394 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1398 case AVMEDIA_TYPE_AUDIO:
1399 av_strlcat(buf, separator, buf_size);
1401 if (enc->sample_rate) {
1402 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1403 "%d Hz, ", enc->sample_rate);
1405 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1406 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1407 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1408 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1410 if ( enc->bits_per_raw_sample > 0
1411 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1412 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1413 " (%d bit)", enc->bits_per_raw_sample);
1414 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1415 if (enc->initial_padding)
1416 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1417 ", delay %d", enc->initial_padding);
1418 if (enc->trailing_padding)
1419 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1420 ", padding %d", enc->trailing_padding);
1423 case AVMEDIA_TYPE_DATA:
1424 if (av_log_get_level() >= AV_LOG_DEBUG) {
1425 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1427 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1429 enc->time_base.num / g, enc->time_base.den / g);
1432 case AVMEDIA_TYPE_SUBTITLE:
1434 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1435 ", %dx%d", enc->width, enc->height);
1441 if (enc->flags & AV_CODEC_FLAG_PASS1)
1442 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1444 if (enc->flags & AV_CODEC_FLAG_PASS2)
1445 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1448 bitrate = get_bit_rate(enc);
1450 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1451 ", %"PRId64" kb/s", bitrate / 1000);
1452 } else if (enc->rc_max_rate > 0) {
1453 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1454 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1458 const char *av_get_profile_name(const AVCodec *codec, int profile)
1461 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1464 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1465 if (p->profile == profile)
1471 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1473 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1476 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1479 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1480 if (p->profile == profile)
1486 unsigned avcodec_version(void)
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_SRT==94216);
1491 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1493 return LIBAVCODEC_VERSION_INT;
1496 const char *avcodec_configuration(void)
1498 return FFMPEG_CONFIGURATION;
1501 const char *avcodec_license(void)
1503 #define LICENSE_PREFIX "libavcodec license: "
1504 return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1507 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1510 case AV_CODEC_ID_8SVX_EXP:
1511 case AV_CODEC_ID_8SVX_FIB:
1512 case AV_CODEC_ID_ADPCM_ARGO:
1513 case AV_CODEC_ID_ADPCM_CT:
1514 case AV_CODEC_ID_ADPCM_IMA_ALP:
1515 case AV_CODEC_ID_ADPCM_IMA_AMV:
1516 case AV_CODEC_ID_ADPCM_IMA_APC:
1517 case AV_CODEC_ID_ADPCM_IMA_APM:
1518 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1519 case AV_CODEC_ID_ADPCM_IMA_OKI:
1520 case AV_CODEC_ID_ADPCM_IMA_WS:
1521 case AV_CODEC_ID_ADPCM_IMA_SSI:
1522 case AV_CODEC_ID_ADPCM_G722:
1523 case AV_CODEC_ID_ADPCM_YAMAHA:
1524 case AV_CODEC_ID_ADPCM_AICA:
1526 case AV_CODEC_ID_DSD_LSBF:
1527 case AV_CODEC_ID_DSD_MSBF:
1528 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1529 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1530 case AV_CODEC_ID_PCM_ALAW:
1531 case AV_CODEC_ID_PCM_MULAW:
1532 case AV_CODEC_ID_PCM_VIDC:
1533 case AV_CODEC_ID_PCM_S8:
1534 case AV_CODEC_ID_PCM_S8_PLANAR:
1535 case AV_CODEC_ID_PCM_U8:
1536 case AV_CODEC_ID_SDX2_DPCM:
1537 case AV_CODEC_ID_DERF_DPCM:
1539 case AV_CODEC_ID_PCM_S16BE:
1540 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1541 case AV_CODEC_ID_PCM_S16LE:
1542 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1543 case AV_CODEC_ID_PCM_U16BE:
1544 case AV_CODEC_ID_PCM_U16LE:
1546 case AV_CODEC_ID_PCM_S24DAUD:
1547 case AV_CODEC_ID_PCM_S24BE:
1548 case AV_CODEC_ID_PCM_S24LE:
1549 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1550 case AV_CODEC_ID_PCM_U24BE:
1551 case AV_CODEC_ID_PCM_U24LE:
1553 case AV_CODEC_ID_PCM_S32BE:
1554 case AV_CODEC_ID_PCM_S32LE:
1555 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1556 case AV_CODEC_ID_PCM_U32BE:
1557 case AV_CODEC_ID_PCM_U32LE:
1558 case AV_CODEC_ID_PCM_F32BE:
1559 case AV_CODEC_ID_PCM_F32LE:
1560 case AV_CODEC_ID_PCM_F24LE:
1561 case AV_CODEC_ID_PCM_F16LE:
1563 case AV_CODEC_ID_PCM_F64BE:
1564 case AV_CODEC_ID_PCM_F64LE:
1565 case AV_CODEC_ID_PCM_S64BE:
1566 case AV_CODEC_ID_PCM_S64LE:
1573 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1575 static const enum AVCodecID map[][2] = {
1576 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1577 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1578 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1579 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1580 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1581 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1582 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1583 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1584 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1585 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1586 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1588 if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1589 return AV_CODEC_ID_NONE;
1590 if (be < 0 || be > 1)
1592 return map[fmt][be];
1595 int av_get_bits_per_sample(enum AVCodecID codec_id)
1598 case AV_CODEC_ID_ADPCM_SBPRO_2:
1600 case AV_CODEC_ID_ADPCM_SBPRO_3:
1602 case AV_CODEC_ID_ADPCM_SBPRO_4:
1603 case AV_CODEC_ID_ADPCM_IMA_WAV:
1604 case AV_CODEC_ID_ADPCM_IMA_QT:
1605 case AV_CODEC_ID_ADPCM_SWF:
1606 case AV_CODEC_ID_ADPCM_MS:
1609 return av_get_exact_bits_per_sample(codec_id);
1613 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1614 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1615 uint8_t * extradata, int frame_size, int frame_bytes)
1617 int bps = av_get_exact_bits_per_sample(id);
1618 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1620 /* codecs with an exact constant bits per sample */
1621 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1622 return (frame_bytes * 8LL) / (bps * ch);
1623 bps = bits_per_coded_sample;
1625 /* codecs with a fixed packet duration */
1627 case AV_CODEC_ID_ADPCM_ADX: return 32;
1628 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1629 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1630 case AV_CODEC_ID_AMR_NB:
1631 case AV_CODEC_ID_EVRC:
1632 case AV_CODEC_ID_GSM:
1633 case AV_CODEC_ID_QCELP:
1634 case AV_CODEC_ID_RA_288: return 160;
1635 case AV_CODEC_ID_AMR_WB:
1636 case AV_CODEC_ID_GSM_MS: return 320;
1637 case AV_CODEC_ID_MP1: return 384;
1638 case AV_CODEC_ID_ATRAC1: return 512;
1639 case AV_CODEC_ID_ATRAC9:
1640 case AV_CODEC_ID_ATRAC3:
1641 if (framecount > INT_MAX/1024)
1643 return 1024 * framecount;
1644 case AV_CODEC_ID_ATRAC3P: return 2048;
1645 case AV_CODEC_ID_MP2:
1646 case AV_CODEC_ID_MUSEPACK7: return 1152;
1647 case AV_CODEC_ID_AC3: return 1536;
1651 /* calc from sample rate */
1652 if (id == AV_CODEC_ID_TTA)
1653 return 256 * sr / 245;
1654 else if (id == AV_CODEC_ID_DST)
1655 return 588 * sr / 44100;
1658 /* calc from sample rate and channels */
1659 if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1660 if (sr / 22050 > 22)
1662 return (480 << (sr / 22050)) / ch;
1666 if (id == AV_CODEC_ID_MP3)
1667 return sr <= 24000 ? 576 : 1152;
1671 /* calc from block_align */
1672 if (id == AV_CODEC_ID_SIPR) {
1674 case 20: return 160;
1675 case 19: return 144;
1676 case 29: return 288;
1677 case 37: return 480;
1679 } else if (id == AV_CODEC_ID_ILBC) {
1681 case 38: return 160;
1682 case 50: return 240;
1687 if (frame_bytes > 0) {
1688 /* calc from frame_bytes only */
1689 if (id == AV_CODEC_ID_TRUESPEECH)
1690 return 240 * (frame_bytes / 32);
1691 if (id == AV_CODEC_ID_NELLYMOSER)
1692 return 256 * (frame_bytes / 64);
1693 if (id == AV_CODEC_ID_RA_144)
1694 return 160 * (frame_bytes / 20);
1697 /* calc from frame_bytes and bits_per_coded_sample */
1698 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1699 return frame_bytes * 8 / bps;
1702 if (ch > 0 && ch < INT_MAX/16) {
1703 /* calc from frame_bytes and channels */
1705 case AV_CODEC_ID_FASTAUDIO:
1706 return frame_bytes / (40 * ch) * 256;
1707 case AV_CODEC_ID_ADPCM_IMA_MOFLEX:
1708 return (frame_bytes - 4 * ch) / (128 * ch) * 256;
1709 case AV_CODEC_ID_ADPCM_AFC:
1710 return frame_bytes / (9 * ch) * 16;
1711 case AV_CODEC_ID_ADPCM_PSX:
1712 case AV_CODEC_ID_ADPCM_DTK:
1713 return frame_bytes / (16 * ch) * 28;
1714 case AV_CODEC_ID_ADPCM_4XM:
1715 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1716 case AV_CODEC_ID_ADPCM_IMA_ISS:
1717 return (frame_bytes - 4 * ch) * 2 / ch;
1718 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1719 return (frame_bytes - 4) * 2 / ch;
1720 case AV_CODEC_ID_ADPCM_IMA_AMV:
1721 return (frame_bytes - 8) * 2;
1722 case AV_CODEC_ID_ADPCM_THP:
1723 case AV_CODEC_ID_ADPCM_THP_LE:
1725 return frame_bytes * 14 / (8 * ch);
1727 case AV_CODEC_ID_ADPCM_XA:
1728 return (frame_bytes / 128) * 224 / ch;
1729 case AV_CODEC_ID_INTERPLAY_DPCM:
1730 return (frame_bytes - 6 - ch) / ch;
1731 case AV_CODEC_ID_ROQ_DPCM:
1732 return (frame_bytes - 8) / ch;
1733 case AV_CODEC_ID_XAN_DPCM:
1734 return (frame_bytes - 2 * ch) / ch;
1735 case AV_CODEC_ID_MACE3:
1736 return 3 * frame_bytes / ch;
1737 case AV_CODEC_ID_MACE6:
1738 return 6 * frame_bytes / ch;
1739 case AV_CODEC_ID_PCM_LXF:
1740 return 2 * (frame_bytes / (5 * ch));
1741 case AV_CODEC_ID_IAC:
1742 case AV_CODEC_ID_IMC:
1743 return 4 * frame_bytes / ch;
1747 /* calc from frame_bytes, channels, and codec_tag */
1748 if (id == AV_CODEC_ID_SOL_DPCM) {
1750 return frame_bytes / ch;
1752 return frame_bytes * 2 / ch;
1757 /* calc from frame_bytes, channels, and block_align */
1758 int blocks = frame_bytes / ba;
1760 case AV_CODEC_ID_ADPCM_IMA_WAV:
1761 if (bps < 2 || bps > 5)
1763 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1764 case AV_CODEC_ID_ADPCM_IMA_DK3:
1765 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1766 case AV_CODEC_ID_ADPCM_IMA_DK4:
1767 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1768 case AV_CODEC_ID_ADPCM_IMA_RAD:
1769 return blocks * ((ba - 4 * ch) * 2 / ch);
1770 case AV_CODEC_ID_ADPCM_MS:
1771 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1772 case AV_CODEC_ID_ADPCM_MTAF:
1773 return blocks * (ba - 16) * 2 / ch;
1778 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1780 case AV_CODEC_ID_PCM_DVD:
1781 if(bps<4 || frame_bytes<3)
1783 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1784 case AV_CODEC_ID_PCM_BLURAY:
1785 if(bps<4 || frame_bytes<4)
1787 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1788 case AV_CODEC_ID_S302M:
1789 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1795 /* Fall back on using frame_size */
1796 if (frame_size > 1 && frame_bytes)
1799 //For WMA we currently have no other means to calculate duration thus we
1800 //do it here by assuming CBR, which is true for all known cases.
1801 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1802 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1803 return (frame_bytes * 8LL * sr) / bitrate;
1809 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1811 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1812 avctx->channels, avctx->block_align,
1813 avctx->codec_tag, avctx->bits_per_coded_sample,
1814 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1818 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1820 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1821 par->channels, par->block_align,
1822 par->codec_tag, par->bits_per_coded_sample,
1823 par->bit_rate, par->extradata, par->frame_size,
1828 int ff_thread_init(AVCodecContext *s)
1835 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1849 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1852 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1856 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1859 if (!codec->hw_configs || index < 0)
1861 for (i = 0; i <= index; i++)
1862 if (!codec->hw_configs[i])
1864 return &codec->hw_configs[index]->public;
1867 #if FF_API_USER_VISIBLE_AVHWACCEL
1868 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1873 void av_register_hwaccel(AVHWAccel *hwaccel)
1879 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1885 unsigned int avpriv_toupper4(unsigned int x)
1887 return av_toupper(x & 0xFF) +
1888 (av_toupper((x >> 8) & 0xFF) << 8) +
1889 (av_toupper((x >> 16) & 0xFF) << 16) +
1890 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1893 int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
1897 dst->owner[0] = src->owner[0];
1898 dst->owner[1] = src->owner[1];
1900 ret = av_frame_ref(dst->f, src->f);
1904 av_assert0(!dst->progress);
1906 if (src->progress &&
1907 !(dst->progress = av_buffer_ref(src->progress))) {
1908 ff_thread_release_buffer(dst->owner[0], dst);
1909 return AVERROR(ENOMEM);
1917 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1919 return ff_get_format(avctx, fmt);
1922 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1924 f->owner[0] = f->owner[1] = avctx;
1925 return ff_get_buffer(avctx, f->f, flags);
1928 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1931 av_frame_unref(f->f);
1934 void ff_thread_finish_setup(AVCodecContext *avctx)
1938 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1942 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1946 int ff_thread_can_start_frame(AVCodecContext *avctx)
1951 int ff_alloc_entries(AVCodecContext *avctx, int count)
1956 void ff_reset_entries(AVCodecContext *avctx)
1960 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1964 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1970 int avcodec_is_open(AVCodecContext *s)
1972 return !!s->internal;
1975 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1977 uint32_t *av_restrict state)
1981 av_assert0(p <= end);
1985 for (i = 0; i < 3; i++) {
1986 uint32_t tmp = *state << 8;
1987 *state = tmp + *(p++);
1988 if (tmp == 0x100 || p == end)
1993 if (p[-1] > 1 ) p += 3;
1994 else if (p[-2] ) p += 2;
1995 else if (p[-3]|(p[-1]-1)) p++;
2002 p = FFMIN(p, end) - 4;
2003 *state = AV_RB32(p);
2008 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
2010 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2015 *size = sizeof(*props);
2017 props->vbv_delay = UINT64_MAX;
2022 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2024 AVPacketSideData *tmp;
2025 AVCPBProperties *props;
2029 for (i = 0; i < avctx->nb_coded_side_data; i++)
2030 if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
2031 return (AVCPBProperties *)avctx->coded_side_data[i].data;
2033 props = av_cpb_properties_alloc(&size);
2037 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2043 avctx->coded_side_data = tmp;
2044 avctx->nb_coded_side_data++;
2046 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2047 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2048 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2053 static void codec_parameters_reset(AVCodecParameters *par)
2055 av_freep(&par->extradata);
2057 memset(par, 0, sizeof(*par));
2059 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2060 par->codec_id = AV_CODEC_ID_NONE;
2062 par->field_order = AV_FIELD_UNKNOWN;
2063 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2064 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2065 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2066 par->color_space = AVCOL_SPC_UNSPECIFIED;
2067 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2068 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2069 par->profile = FF_PROFILE_UNKNOWN;
2070 par->level = FF_LEVEL_UNKNOWN;
2073 AVCodecParameters *avcodec_parameters_alloc(void)
2075 AVCodecParameters *par = av_mallocz(sizeof(*par));
2079 codec_parameters_reset(par);
2083 void avcodec_parameters_free(AVCodecParameters **ppar)
2085 AVCodecParameters *par = *ppar;
2089 codec_parameters_reset(par);
2094 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2096 codec_parameters_reset(dst);
2097 memcpy(dst, src, sizeof(*dst));
2099 dst->extradata = NULL;
2100 dst->extradata_size = 0;
2101 if (src->extradata) {
2102 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2103 if (!dst->extradata)
2104 return AVERROR(ENOMEM);
2105 memcpy(dst->extradata, src->extradata, src->extradata_size);
2106 dst->extradata_size = src->extradata_size;
2112 int avcodec_parameters_from_context(AVCodecParameters *par,
2113 const AVCodecContext *codec)
2115 codec_parameters_reset(par);
2117 par->codec_type = codec->codec_type;
2118 par->codec_id = codec->codec_id;
2119 par->codec_tag = codec->codec_tag;
2121 par->bit_rate = codec->bit_rate;
2122 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2123 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2124 par->profile = codec->profile;
2125 par->level = codec->level;
2127 switch (par->codec_type) {
2128 case AVMEDIA_TYPE_VIDEO:
2129 par->format = codec->pix_fmt;
2130 par->width = codec->width;
2131 par->height = codec->height;
2132 par->field_order = codec->field_order;
2133 par->color_range = codec->color_range;
2134 par->color_primaries = codec->color_primaries;
2135 par->color_trc = codec->color_trc;
2136 par->color_space = codec->colorspace;
2137 par->chroma_location = codec->chroma_sample_location;
2138 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2139 par->video_delay = codec->has_b_frames;
2141 case AVMEDIA_TYPE_AUDIO:
2142 par->format = codec->sample_fmt;
2143 par->channel_layout = codec->channel_layout;
2144 par->channels = codec->channels;
2145 par->sample_rate = codec->sample_rate;
2146 par->block_align = codec->block_align;
2147 par->frame_size = codec->frame_size;
2148 par->initial_padding = codec->initial_padding;
2149 par->trailing_padding = codec->trailing_padding;
2150 par->seek_preroll = codec->seek_preroll;
2152 case AVMEDIA_TYPE_SUBTITLE:
2153 par->width = codec->width;
2154 par->height = codec->height;
2158 if (codec->extradata) {
2159 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2160 if (!par->extradata)
2161 return AVERROR(ENOMEM);
2162 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2163 par->extradata_size = codec->extradata_size;
2169 int avcodec_parameters_to_context(AVCodecContext *codec,
2170 const AVCodecParameters *par)
2172 codec->codec_type = par->codec_type;
2173 codec->codec_id = par->codec_id;
2174 codec->codec_tag = par->codec_tag;
2176 codec->bit_rate = par->bit_rate;
2177 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2178 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2179 codec->profile = par->profile;
2180 codec->level = par->level;
2182 switch (par->codec_type) {
2183 case AVMEDIA_TYPE_VIDEO:
2184 codec->pix_fmt = par->format;
2185 codec->width = par->width;
2186 codec->height = par->height;
2187 codec->field_order = par->field_order;
2188 codec->color_range = par->color_range;
2189 codec->color_primaries = par->color_primaries;
2190 codec->color_trc = par->color_trc;
2191 codec->colorspace = par->color_space;
2192 codec->chroma_sample_location = par->chroma_location;
2193 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2194 codec->has_b_frames = par->video_delay;
2196 case AVMEDIA_TYPE_AUDIO:
2197 codec->sample_fmt = par->format;
2198 codec->channel_layout = par->channel_layout;
2199 codec->channels = par->channels;
2200 codec->sample_rate = par->sample_rate;
2201 codec->block_align = par->block_align;
2202 codec->frame_size = par->frame_size;
2204 codec->initial_padding = par->initial_padding;
2205 codec->trailing_padding = par->trailing_padding;
2206 codec->seek_preroll = par->seek_preroll;
2208 case AVMEDIA_TYPE_SUBTITLE:
2209 codec->width = par->width;
2210 codec->height = par->height;
2214 if (par->extradata) {
2215 av_freep(&codec->extradata);
2216 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2217 if (!codec->extradata)
2218 return AVERROR(ENOMEM);
2219 memcpy(codec->extradata, par->extradata, par->extradata_size);
2220 codec->extradata_size = par->extradata_size;
2226 static unsigned bcd2uint(uint8_t bcd)
2228 unsigned low = bcd & 0xf;
2229 unsigned high = bcd >> 4;
2230 if (low > 9 || high > 9)
2232 return low + 10*high;
2235 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
2236 void **data, size_t *sei_size)
2238 AVFrameSideData *sd = NULL;
2245 sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE);
2251 tc = (uint32_t*)sd->data;
2254 *sei_size = sizeof(uint32_t) * 4;
2255 *data = av_mallocz(*sei_size + prefix_len);
2257 return AVERROR(ENOMEM);
2258 sei_data = (uint8_t*)*data + prefix_len;
2260 init_put_bits(&pb, sei_data, *sei_size);
2261 put_bits(&pb, 2, m); // num_clock_ts
2263 for (int j = 1; j <= m; j++) {
2264 uint32_t tcsmpte = tc[j];
2265 unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2266 unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2267 unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2268 unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2269 unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2271 /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
2272 if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
2275 if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
2276 pc = !!(tcsmpte & 1 << 7);
2278 pc = !!(tcsmpte & 1 << 23);
2279 ff = (ff + pc) & 0x7f;
2282 put_bits(&pb, 1, 1); // clock_timestamp_flag
2283 put_bits(&pb, 1, 1); // units_field_based_flag
2284 put_bits(&pb, 5, 0); // counting_type
2285 put_bits(&pb, 1, 1); // full_timestamp_flag
2286 put_bits(&pb, 1, 0); // discontinuity_flag
2287 put_bits(&pb, 1, drop);
2288 put_bits(&pb, 9, ff);
2289 put_bits(&pb, 6, ss);
2290 put_bits(&pb, 6, mm);
2291 put_bits(&pb, 5, hh);
2292 put_bits(&pb, 5, 0);
2294 flush_put_bits(&pb);
2299 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2301 AVRational framerate = avctx->framerate;
2302 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2305 if (!(framerate.num && framerate.den))
2306 framerate = av_inv_q(avctx->time_base);
2307 if (!(framerate.num && framerate.den))
2310 if (!bits_per_coded_sample) {
2311 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2312 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2314 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2315 framerate.num / framerate.den;
2320 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2321 const int * array_valid_values, int default_value)
2326 ref_val = array_valid_values[i];
2327 if (ref_val == INT_MAX)
2333 /* val is not a valid value */
2334 av_log(ctx, AV_LOG_DEBUG,
2335 "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2336 return default_value;