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 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
526 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
528 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
529 ff_mutex_lock(&codec_mutex);
532 static void ff_unlock_avcodec(const AVCodec *codec)
534 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
535 ff_mutex_unlock(&codec_mutex);
538 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
541 int codec_init_ok = 0;
542 AVDictionary *tmp = NULL;
543 const AVPixFmtDescriptor *pixdesc;
544 AVCodecInternal *avci;
546 if (avcodec_is_open(avctx))
549 if (!codec && !avctx->codec) {
550 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
551 return AVERROR(EINVAL);
553 if (codec && avctx->codec && codec != avctx->codec) {
554 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
555 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
556 return AVERROR(EINVAL);
559 codec = avctx->codec;
561 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
562 return AVERROR(EINVAL);
565 av_dict_copy(&tmp, *options, 0);
567 ff_lock_avcodec(avctx, codec);
569 avci = av_mallocz(sizeof(*avci));
571 ret = AVERROR(ENOMEM);
574 avctx->internal = avci;
576 avci->to_free = av_frame_alloc();
577 avci->compat_decode_frame = av_frame_alloc();
578 avci->compat_encode_packet = av_packet_alloc();
579 avci->buffer_frame = av_frame_alloc();
580 avci->buffer_pkt = av_packet_alloc();
581 avci->es.in_frame = av_frame_alloc();
582 avci->ds.in_pkt = av_packet_alloc();
583 avci->last_pkt_props = av_packet_alloc();
584 if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
585 !avci->buffer_frame || !avci->buffer_pkt ||
586 !avci->es.in_frame || !avci->ds.in_pkt ||
587 !avci->to_free || !avci->last_pkt_props) {
588 ret = AVERROR(ENOMEM);
592 avci->skip_samples_multiplier = 1;
594 if (codec->priv_data_size > 0) {
595 if (!avctx->priv_data) {
596 avctx->priv_data = av_mallocz(codec->priv_data_size);
597 if (!avctx->priv_data) {
598 ret = AVERROR(ENOMEM);
601 if (codec->priv_class) {
602 *(const AVClass **)avctx->priv_data = codec->priv_class;
603 av_opt_set_defaults(avctx->priv_data);
606 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
609 avctx->priv_data = NULL;
611 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
614 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
615 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
616 ret = AVERROR(EINVAL);
620 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
621 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
622 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
623 if (avctx->coded_width && avctx->coded_height)
624 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
625 else if (avctx->width && avctx->height)
626 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
631 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
632 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
633 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
634 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
635 ff_set_dimensions(avctx, 0, 0);
638 if (avctx->width > 0 && avctx->height > 0) {
639 if (av_image_check_sar(avctx->width, avctx->height,
640 avctx->sample_aspect_ratio) < 0) {
641 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
642 avctx->sample_aspect_ratio.num,
643 avctx->sample_aspect_ratio.den);
644 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
648 /* if the decoder init function was already called previously,
649 * free the already allocated subtitle_header before overwriting it */
650 if (av_codec_is_decoder(codec))
651 av_freep(&avctx->subtitle_header);
653 if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
654 av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
655 ret = AVERROR(EINVAL);
658 if (av_codec_is_decoder(codec) &&
659 codec->type == AVMEDIA_TYPE_AUDIO &&
660 !(codec->capabilities & AV_CODEC_CAP_CHANNEL_CONF) &&
661 avctx->channels == 0) {
662 av_log(avctx, AV_LOG_ERROR, "Decoder requires channel count but channels not set\n");
663 ret = AVERROR(EINVAL);
667 if (avctx->sample_rate < 0) {
668 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
669 ret = AVERROR(EINVAL);
672 if (avctx->block_align < 0) {
673 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
674 ret = AVERROR(EINVAL);
678 #if FF_API_THREAD_SAFE_CALLBACKS
679 FF_DISABLE_DEPRECATION_WARNINGS
680 if ((avctx->thread_type & FF_THREAD_FRAME) &&
681 avctx->get_buffer2 != avcodec_default_get_buffer2 &&
682 !avctx->thread_safe_callbacks) {
683 av_log(avctx, AV_LOG_WARNING, "Requested frame threading with a "
684 "custom get_buffer2() implementation which is not marked as "
685 "thread safe. This is not supported anymore, make your "
686 "callback thread-safe.\n");
688 FF_ENABLE_DEPRECATION_WARNINGS
691 avctx->codec = codec;
692 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
693 avctx->codec_id == AV_CODEC_ID_NONE) {
694 avctx->codec_type = codec->type;
695 avctx->codec_id = codec->id;
697 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
698 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
699 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
700 ret = AVERROR(EINVAL);
703 avctx->frame_number = 0;
704 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
706 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
707 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
708 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
709 const AVCodec *codec2;
710 av_log(avctx, AV_LOG_ERROR,
711 "The %s '%s' is experimental but experimental codecs are not enabled, "
712 "add '-strict %d' if you want to use it.\n",
713 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
714 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
715 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
716 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
717 codec_string, codec2->name);
718 ret = AVERROR_EXPERIMENTAL;
722 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
723 (!avctx->time_base.num || !avctx->time_base.den)) {
724 avctx->time_base.num = 1;
725 avctx->time_base.den = avctx->sample_rate;
729 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
731 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
732 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
733 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
734 ff_lock_avcodec(avctx, codec);
739 if (av_codec_is_decoder(avctx->codec)) {
740 ret = ff_decode_bsfs_init(avctx);
746 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
747 ret = ff_thread_init(avctx);
752 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
753 avctx->thread_count = 1;
755 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
756 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
757 avctx->codec->max_lowres);
758 avctx->lowres = avctx->codec->max_lowres;
761 if (av_codec_is_encoder(avctx->codec)) {
763 #if FF_API_CODED_FRAME
764 FF_DISABLE_DEPRECATION_WARNINGS
765 avctx->coded_frame = av_frame_alloc();
766 if (!avctx->coded_frame) {
767 ret = AVERROR(ENOMEM);
770 FF_ENABLE_DEPRECATION_WARNINGS
773 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
774 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
775 ret = AVERROR(EINVAL);
779 if (avctx->codec->sample_fmts) {
780 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
781 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
783 if (avctx->channels == 1 &&
784 av_get_planar_sample_fmt(avctx->sample_fmt) ==
785 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
786 avctx->sample_fmt = avctx->codec->sample_fmts[i];
790 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
792 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
793 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
794 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
795 ret = AVERROR(EINVAL);
799 if (avctx->codec->pix_fmts) {
800 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
801 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
803 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
804 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
805 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
807 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
808 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
809 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
810 ret = AVERROR(EINVAL);
813 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
814 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
815 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
816 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
817 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
818 avctx->color_range = AVCOL_RANGE_JPEG;
820 if (avctx->codec->supported_samplerates) {
821 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
822 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
824 if (avctx->codec->supported_samplerates[i] == 0) {
825 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
827 ret = AVERROR(EINVAL);
831 if (avctx->sample_rate < 0) {
832 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
834 ret = AVERROR(EINVAL);
837 if (avctx->codec->channel_layouts) {
838 if (!avctx->channel_layout) {
839 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
841 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
842 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
844 if (avctx->codec->channel_layouts[i] == 0) {
846 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
847 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
848 ret = AVERROR(EINVAL);
853 if (avctx->channel_layout && avctx->channels) {
854 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
855 if (channels != avctx->channels) {
857 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
858 av_log(avctx, AV_LOG_ERROR,
859 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
860 buf, channels, avctx->channels);
861 ret = AVERROR(EINVAL);
864 } else if (avctx->channel_layout) {
865 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
867 if (avctx->channels < 0) {
868 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
870 ret = AVERROR(EINVAL);
873 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
874 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
875 if ( avctx->bits_per_raw_sample < 0
876 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
877 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
878 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
879 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
881 if (avctx->width <= 0 || avctx->height <= 0) {
882 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
883 ret = AVERROR(EINVAL);
887 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
888 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
889 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
892 if (!avctx->rc_initial_buffer_occupancy)
893 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
895 if (avctx->ticks_per_frame && avctx->time_base.num &&
896 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
897 av_log(avctx, AV_LOG_ERROR,
898 "ticks_per_frame %d too large for the timebase %d/%d.",
899 avctx->ticks_per_frame,
900 avctx->time_base.num,
901 avctx->time_base.den);
905 if (avctx->hw_frames_ctx) {
906 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
907 if (frames_ctx->format != avctx->pix_fmt) {
908 av_log(avctx, AV_LOG_ERROR,
909 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
910 ret = AVERROR(EINVAL);
913 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
914 avctx->sw_pix_fmt != frames_ctx->sw_format) {
915 av_log(avctx, AV_LOG_ERROR,
916 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
917 "and AVHWFramesContext.sw_format (%s)\n",
918 av_get_pix_fmt_name(avctx->sw_pix_fmt),
919 av_get_pix_fmt_name(frames_ctx->sw_format));
920 ret = AVERROR(EINVAL);
923 avctx->sw_pix_fmt = frames_ctx->sw_format;
927 avctx->pts_correction_num_faulty_pts =
928 avctx->pts_correction_num_faulty_dts = 0;
929 avctx->pts_correction_last_pts =
930 avctx->pts_correction_last_dts = INT64_MIN;
932 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
933 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
934 av_log(avctx, AV_LOG_WARNING,
935 "gray decoding requested but not enabled at configuration time\n");
936 if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
937 avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
940 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
941 || avci->frame_thread_encoder)) {
942 ret = avctx->codec->init(avctx);
952 if (av_codec_is_decoder(avctx->codec)) {
953 if (!avctx->bit_rate)
954 avctx->bit_rate = get_bit_rate(avctx);
955 /* validate channel layout from the decoder */
956 if (avctx->channel_layout) {
957 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
958 if (!avctx->channels)
959 avctx->channels = channels;
960 else if (channels != avctx->channels) {
962 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
963 av_log(avctx, AV_LOG_WARNING,
964 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
965 "ignoring specified channel layout\n",
966 buf, channels, avctx->channels);
967 avctx->channel_layout = 0;
970 if (avctx->channels && avctx->channels < 0 ||
971 avctx->channels > FF_SANE_NB_CHANNELS) {
972 ret = AVERROR(EINVAL);
975 if (avctx->bits_per_coded_sample < 0) {
976 ret = AVERROR(EINVAL);
979 if (avctx->sub_charenc) {
980 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
981 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
982 "supported with subtitles codecs\n");
983 ret = AVERROR(EINVAL);
985 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
986 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
987 "subtitles character encoding will be ignored\n",
988 avctx->codec_descriptor->name);
989 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
991 /* input character encoding is set for a text based subtitle
992 * codec at this point */
993 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
994 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
996 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
998 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
999 if (cd == (iconv_t)-1) {
1000 ret = AVERROR(errno);
1001 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1002 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1007 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1008 "conversion needs a libavcodec built with iconv support "
1009 "for this codec\n");
1010 ret = AVERROR(ENOSYS);
1017 #if FF_API_AVCTX_TIMEBASE
1018 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1019 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1022 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1023 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1027 ff_unlock_avcodec(codec);
1029 av_dict_free(options);
1035 if (avctx->codec && avctx->codec->close &&
1036 (codec_init_ok > 0 || (codec_init_ok < 0 &&
1037 avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
1038 avctx->codec->close(avctx);
1040 if (HAVE_THREADS && avci->thread_ctx)
1041 ff_thread_free(avctx);
1043 if (codec->priv_class && avctx->priv_data)
1044 av_opt_free(avctx->priv_data);
1047 if (av_codec_is_encoder(avctx->codec)) {
1048 #if FF_API_CODED_FRAME
1049 FF_DISABLE_DEPRECATION_WARNINGS
1050 av_frame_free(&avctx->coded_frame);
1051 FF_ENABLE_DEPRECATION_WARNINGS
1053 av_freep(&avctx->extradata);
1054 avctx->extradata_size = 0;
1058 av_freep(&avctx->priv_data);
1059 av_freep(&avctx->subtitle_header);
1061 av_frame_free(&avci->to_free);
1062 av_frame_free(&avci->compat_decode_frame);
1063 av_frame_free(&avci->buffer_frame);
1064 av_packet_free(&avci->compat_encode_packet);
1065 av_packet_free(&avci->buffer_pkt);
1066 av_packet_free(&avci->last_pkt_props);
1068 av_packet_free(&avci->ds.in_pkt);
1069 av_frame_free(&avci->es.in_frame);
1070 av_bsf_free(&avci->bsf);
1072 av_buffer_unref(&avci->pool);
1074 avctx->internal = NULL;
1075 avctx->codec = NULL;
1079 void avcodec_flush_buffers(AVCodecContext *avctx)
1081 AVCodecInternal *avci = avctx->internal;
1083 if (av_codec_is_encoder(avctx->codec)) {
1084 int caps = avctx->codec->capabilities;
1086 if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1087 // Only encoders that explicitly declare support for it can be
1088 // flushed. Otherwise, this is a no-op.
1089 av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1090 "that doesn't support it\n");
1094 // We haven't implemented flushing for frame-threaded encoders.
1095 av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
1099 avci->draining_done = 0;
1100 avci->nb_draining_errors = 0;
1101 av_frame_unref(avci->buffer_frame);
1102 av_frame_unref(avci->compat_decode_frame);
1103 av_packet_unref(avci->compat_encode_packet);
1104 av_packet_unref(avci->buffer_pkt);
1106 av_packet_unref(avci->last_pkt_props);
1107 avpriv_packet_list_free(&avci->pkt_props,
1108 &avci->pkt_props_tail);
1110 av_frame_unref(avci->es.in_frame);
1111 av_packet_unref(avci->ds.in_pkt);
1113 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1114 ff_thread_flush(avctx);
1115 else if (avctx->codec->flush)
1116 avctx->codec->flush(avctx);
1118 avctx->pts_correction_last_pts =
1119 avctx->pts_correction_last_dts = INT64_MIN;
1121 if (av_codec_is_decoder(avctx->codec))
1122 av_bsf_flush(avci->bsf);
1124 if (!avctx->refcounted_frames)
1125 av_frame_unref(avci->to_free);
1128 void avsubtitle_free(AVSubtitle *sub)
1132 for (i = 0; i < sub->num_rects; i++) {
1133 av_freep(&sub->rects[i]->data[0]);
1134 av_freep(&sub->rects[i]->data[1]);
1135 av_freep(&sub->rects[i]->data[2]);
1136 av_freep(&sub->rects[i]->data[3]);
1137 av_freep(&sub->rects[i]->text);
1138 av_freep(&sub->rects[i]->ass);
1139 av_freep(&sub->rects[i]);
1142 av_freep(&sub->rects);
1144 memset(sub, 0, sizeof(*sub));
1147 av_cold int avcodec_close(AVCodecContext *avctx)
1154 if (avcodec_is_open(avctx)) {
1155 if (CONFIG_FRAME_THREAD_ENCODER &&
1156 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1157 ff_frame_thread_encoder_free(avctx);
1159 if (HAVE_THREADS && avctx->internal->thread_ctx)
1160 ff_thread_free(avctx);
1161 if (avctx->codec && avctx->codec->close)
1162 avctx->codec->close(avctx);
1163 avctx->internal->byte_buffer_size = 0;
1164 av_freep(&avctx->internal->byte_buffer);
1165 av_frame_free(&avctx->internal->to_free);
1166 av_frame_free(&avctx->internal->compat_decode_frame);
1167 av_frame_free(&avctx->internal->buffer_frame);
1168 av_packet_free(&avctx->internal->compat_encode_packet);
1169 av_packet_free(&avctx->internal->buffer_pkt);
1170 av_packet_free(&avctx->internal->last_pkt_props);
1171 avpriv_packet_list_free(&avctx->internal->pkt_props,
1172 &avctx->internal->pkt_props_tail);
1174 av_packet_free(&avctx->internal->ds.in_pkt);
1175 av_frame_free(&avctx->internal->es.in_frame);
1177 av_buffer_unref(&avctx->internal->pool);
1179 if (avctx->hwaccel && avctx->hwaccel->uninit)
1180 avctx->hwaccel->uninit(avctx);
1181 av_freep(&avctx->internal->hwaccel_priv_data);
1183 av_bsf_free(&avctx->internal->bsf);
1185 av_freep(&avctx->internal);
1188 for (i = 0; i < avctx->nb_coded_side_data; i++)
1189 av_freep(&avctx->coded_side_data[i].data);
1190 av_freep(&avctx->coded_side_data);
1191 avctx->nb_coded_side_data = 0;
1193 av_buffer_unref(&avctx->hw_frames_ctx);
1194 av_buffer_unref(&avctx->hw_device_ctx);
1196 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1197 av_opt_free(avctx->priv_data);
1199 av_freep(&avctx->priv_data);
1200 if (av_codec_is_encoder(avctx->codec)) {
1201 av_freep(&avctx->extradata);
1202 #if FF_API_CODED_FRAME
1203 FF_DISABLE_DEPRECATION_WARNINGS
1204 av_frame_free(&avctx->coded_frame);
1205 FF_ENABLE_DEPRECATION_WARNINGS
1208 avctx->codec = NULL;
1209 avctx->active_thread_type = 0;
1214 const char *avcodec_get_name(enum AVCodecID id)
1216 const AVCodecDescriptor *cd;
1217 const AVCodec *codec;
1219 if (id == AV_CODEC_ID_NONE)
1221 cd = avcodec_descriptor_get(id);
1224 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1225 codec = avcodec_find_decoder(id);
1228 codec = avcodec_find_encoder(id);
1231 return "unknown_codec";
1234 #if FF_API_TAG_STRING
1235 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1237 int i, len, ret = 0;
1239 #define TAG_PRINT(x) \
1240 (((x) >= '0' && (x) <= '9') || \
1241 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1242 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1244 for (i = 0; i < 4; i++) {
1245 len = snprintf(buf, buf_size,
1246 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1248 buf_size = buf_size > len ? buf_size - len : 0;
1256 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1258 const char *codec_type;
1259 const char *codec_name;
1260 const char *profile = NULL;
1263 AVRational display_aspect_ratio;
1264 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1266 if (!buf || buf_size <= 0)
1268 codec_type = av_get_media_type_string(enc->codec_type);
1269 codec_name = avcodec_get_name(enc->codec_id);
1270 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1272 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1274 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1276 if (enc->codec && strcmp(enc->codec->name, codec_name))
1277 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1280 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1281 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1282 && av_log_get_level() >= AV_LOG_VERBOSE
1284 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1285 ", %d reference frame%s",
1286 enc->refs, enc->refs > 1 ? "s" : "");
1289 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1290 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1292 switch (enc->codec_type) {
1293 case AVMEDIA_TYPE_VIDEO:
1295 char detail[256] = "(";
1297 av_strlcat(buf, separator, buf_size);
1299 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1300 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1301 av_get_pix_fmt_name(enc->pix_fmt));
1302 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1303 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1304 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1305 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1306 av_strlcatf(detail, sizeof(detail), "%s, ",
1307 av_color_range_name(enc->color_range));
1309 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1310 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1311 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1312 if (enc->colorspace != (int)enc->color_primaries ||
1313 enc->colorspace != (int)enc->color_trc) {
1315 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1316 av_color_space_name(enc->colorspace),
1317 av_color_primaries_name(enc->color_primaries),
1318 av_color_transfer_name(enc->color_trc));
1320 av_strlcatf(detail, sizeof(detail), "%s, ",
1321 av_get_colorspace_name(enc->colorspace));
1324 if (enc->field_order != AV_FIELD_UNKNOWN) {
1325 const char *field_order = "progressive";
1326 if (enc->field_order == AV_FIELD_TT)
1327 field_order = "top first";
1328 else if (enc->field_order == AV_FIELD_BB)
1329 field_order = "bottom first";
1330 else if (enc->field_order == AV_FIELD_TB)
1331 field_order = "top coded first (swapped)";
1332 else if (enc->field_order == AV_FIELD_BT)
1333 field_order = "bottom coded first (swapped)";
1335 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1338 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1339 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1340 av_strlcatf(detail, sizeof(detail), "%s, ",
1341 av_chroma_location_name(enc->chroma_sample_location));
1343 if (strlen(detail) > 1) {
1344 detail[strlen(detail) - 2] = 0;
1345 av_strlcatf(buf, buf_size, "%s)", detail);
1350 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1352 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1354 enc->width, enc->height);
1356 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1357 (enc->width != enc->coded_width ||
1358 enc->height != enc->coded_height))
1359 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360 " (%dx%d)", enc->coded_width, enc->coded_height);
1362 if (enc->sample_aspect_ratio.num) {
1363 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1364 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1365 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1367 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1368 " [SAR %d:%d DAR %d:%d]",
1369 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1370 display_aspect_ratio.num, display_aspect_ratio.den);
1372 if (av_log_get_level() >= AV_LOG_DEBUG) {
1373 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1374 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1376 enc->time_base.num / g, enc->time_base.den / g);
1380 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1381 ", q=%d-%d", enc->qmin, enc->qmax);
1383 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1384 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1385 ", Closed Captions");
1386 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1387 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1391 case AVMEDIA_TYPE_AUDIO:
1392 av_strlcat(buf, separator, buf_size);
1394 if (enc->sample_rate) {
1395 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1396 "%d Hz, ", enc->sample_rate);
1398 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1399 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1400 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1401 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1403 if ( enc->bits_per_raw_sample > 0
1404 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1405 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1406 " (%d bit)", enc->bits_per_raw_sample);
1407 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1408 if (enc->initial_padding)
1409 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1410 ", delay %d", enc->initial_padding);
1411 if (enc->trailing_padding)
1412 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1413 ", padding %d", enc->trailing_padding);
1416 case AVMEDIA_TYPE_DATA:
1417 if (av_log_get_level() >= AV_LOG_DEBUG) {
1418 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1420 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1422 enc->time_base.num / g, enc->time_base.den / g);
1425 case AVMEDIA_TYPE_SUBTITLE:
1427 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1428 ", %dx%d", enc->width, enc->height);
1434 if (enc->flags & AV_CODEC_FLAG_PASS1)
1435 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1437 if (enc->flags & AV_CODEC_FLAG_PASS2)
1438 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1441 bitrate = get_bit_rate(enc);
1443 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1444 ", %"PRId64" kb/s", bitrate / 1000);
1445 } else if (enc->rc_max_rate > 0) {
1446 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1447 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1451 const char *av_get_profile_name(const AVCodec *codec, int profile)
1454 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1457 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1458 if (p->profile == profile)
1464 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1466 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1469 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1472 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1473 if (p->profile == profile)
1479 unsigned avcodec_version(void)
1481 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1482 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1483 av_assert0(AV_CODEC_ID_SRT==94216);
1484 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1486 return LIBAVCODEC_VERSION_INT;
1489 const char *avcodec_configuration(void)
1491 return FFMPEG_CONFIGURATION;
1494 const char *avcodec_license(void)
1496 #define LICENSE_PREFIX "libavcodec license: "
1497 return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1500 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1503 case AV_CODEC_ID_8SVX_EXP:
1504 case AV_CODEC_ID_8SVX_FIB:
1505 case AV_CODEC_ID_ADPCM_ARGO:
1506 case AV_CODEC_ID_ADPCM_CT:
1507 case AV_CODEC_ID_ADPCM_IMA_ALP:
1508 case AV_CODEC_ID_ADPCM_IMA_AMV:
1509 case AV_CODEC_ID_ADPCM_IMA_APC:
1510 case AV_CODEC_ID_ADPCM_IMA_APM:
1511 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1512 case AV_CODEC_ID_ADPCM_IMA_OKI:
1513 case AV_CODEC_ID_ADPCM_IMA_WS:
1514 case AV_CODEC_ID_ADPCM_IMA_SSI:
1515 case AV_CODEC_ID_ADPCM_G722:
1516 case AV_CODEC_ID_ADPCM_YAMAHA:
1517 case AV_CODEC_ID_ADPCM_AICA:
1519 case AV_CODEC_ID_DSD_LSBF:
1520 case AV_CODEC_ID_DSD_MSBF:
1521 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1522 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1523 case AV_CODEC_ID_PCM_ALAW:
1524 case AV_CODEC_ID_PCM_MULAW:
1525 case AV_CODEC_ID_PCM_VIDC:
1526 case AV_CODEC_ID_PCM_S8:
1527 case AV_CODEC_ID_PCM_S8_PLANAR:
1528 case AV_CODEC_ID_PCM_U8:
1529 case AV_CODEC_ID_SDX2_DPCM:
1530 case AV_CODEC_ID_DERF_DPCM:
1532 case AV_CODEC_ID_PCM_S16BE:
1533 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1534 case AV_CODEC_ID_PCM_S16LE:
1535 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1536 case AV_CODEC_ID_PCM_U16BE:
1537 case AV_CODEC_ID_PCM_U16LE:
1539 case AV_CODEC_ID_PCM_S24DAUD:
1540 case AV_CODEC_ID_PCM_S24BE:
1541 case AV_CODEC_ID_PCM_S24LE:
1542 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1543 case AV_CODEC_ID_PCM_U24BE:
1544 case AV_CODEC_ID_PCM_U24LE:
1546 case AV_CODEC_ID_PCM_S32BE:
1547 case AV_CODEC_ID_PCM_S32LE:
1548 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1549 case AV_CODEC_ID_PCM_U32BE:
1550 case AV_CODEC_ID_PCM_U32LE:
1551 case AV_CODEC_ID_PCM_F32BE:
1552 case AV_CODEC_ID_PCM_F32LE:
1553 case AV_CODEC_ID_PCM_F24LE:
1554 case AV_CODEC_ID_PCM_F16LE:
1556 case AV_CODEC_ID_PCM_F64BE:
1557 case AV_CODEC_ID_PCM_F64LE:
1558 case AV_CODEC_ID_PCM_S64BE:
1559 case AV_CODEC_ID_PCM_S64LE:
1566 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1568 static const enum AVCodecID map[][2] = {
1569 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1570 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1571 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1572 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1573 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1574 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1575 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1576 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1577 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1578 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1579 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1581 if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1582 return AV_CODEC_ID_NONE;
1583 if (be < 0 || be > 1)
1585 return map[fmt][be];
1588 int av_get_bits_per_sample(enum AVCodecID codec_id)
1591 case AV_CODEC_ID_ADPCM_SBPRO_2:
1593 case AV_CODEC_ID_ADPCM_SBPRO_3:
1595 case AV_CODEC_ID_ADPCM_SBPRO_4:
1596 case AV_CODEC_ID_ADPCM_IMA_WAV:
1597 case AV_CODEC_ID_ADPCM_IMA_QT:
1598 case AV_CODEC_ID_ADPCM_SWF:
1599 case AV_CODEC_ID_ADPCM_MS:
1602 return av_get_exact_bits_per_sample(codec_id);
1606 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1607 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1608 uint8_t * extradata, int frame_size, int frame_bytes)
1610 int bps = av_get_exact_bits_per_sample(id);
1611 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1613 /* codecs with an exact constant bits per sample */
1614 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1615 return (frame_bytes * 8LL) / (bps * ch);
1616 bps = bits_per_coded_sample;
1618 /* codecs with a fixed packet duration */
1620 case AV_CODEC_ID_ADPCM_ADX: return 32;
1621 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1622 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1623 case AV_CODEC_ID_AMR_NB:
1624 case AV_CODEC_ID_EVRC:
1625 case AV_CODEC_ID_GSM:
1626 case AV_CODEC_ID_QCELP:
1627 case AV_CODEC_ID_RA_288: return 160;
1628 case AV_CODEC_ID_AMR_WB:
1629 case AV_CODEC_ID_GSM_MS: return 320;
1630 case AV_CODEC_ID_MP1: return 384;
1631 case AV_CODEC_ID_ATRAC1: return 512;
1632 case AV_CODEC_ID_ATRAC9:
1633 case AV_CODEC_ID_ATRAC3:
1634 if (framecount > INT_MAX/1024)
1636 return 1024 * framecount;
1637 case AV_CODEC_ID_ATRAC3P: return 2048;
1638 case AV_CODEC_ID_MP2:
1639 case AV_CODEC_ID_MUSEPACK7: return 1152;
1640 case AV_CODEC_ID_AC3: return 1536;
1644 /* calc from sample rate */
1645 if (id == AV_CODEC_ID_TTA)
1646 return 256 * sr / 245;
1647 else if (id == AV_CODEC_ID_DST)
1648 return 588 * sr / 44100;
1651 /* calc from sample rate and channels */
1652 if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1653 if (sr / 22050 > 22)
1655 return (480 << (sr / 22050)) / ch;
1659 if (id == AV_CODEC_ID_MP3)
1660 return sr <= 24000 ? 576 : 1152;
1664 /* calc from block_align */
1665 if (id == AV_CODEC_ID_SIPR) {
1667 case 20: return 160;
1668 case 19: return 144;
1669 case 29: return 288;
1670 case 37: return 480;
1672 } else if (id == AV_CODEC_ID_ILBC) {
1674 case 38: return 160;
1675 case 50: return 240;
1680 if (frame_bytes > 0) {
1681 /* calc from frame_bytes only */
1682 if (id == AV_CODEC_ID_TRUESPEECH)
1683 return 240 * (frame_bytes / 32);
1684 if (id == AV_CODEC_ID_NELLYMOSER)
1685 return 256 * (frame_bytes / 64);
1686 if (id == AV_CODEC_ID_RA_144)
1687 return 160 * (frame_bytes / 20);
1690 /* calc from frame_bytes and bits_per_coded_sample */
1691 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1692 return frame_bytes * 8 / bps;
1695 if (ch > 0 && ch < INT_MAX/16) {
1696 /* calc from frame_bytes and channels */
1698 case AV_CODEC_ID_FASTAUDIO:
1699 return frame_bytes / (40 * ch) * 256;
1700 case AV_CODEC_ID_ADPCM_IMA_MOFLEX:
1701 return (frame_bytes - 4 * ch) / (128 * ch) * 256;
1702 case AV_CODEC_ID_ADPCM_AFC:
1703 return frame_bytes / (9 * ch) * 16;
1704 case AV_CODEC_ID_ADPCM_PSX:
1705 case AV_CODEC_ID_ADPCM_DTK:
1706 return frame_bytes / (16 * ch) * 28;
1707 case AV_CODEC_ID_ADPCM_4XM:
1708 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1709 case AV_CODEC_ID_ADPCM_IMA_ISS:
1710 return (frame_bytes - 4 * ch) * 2 / ch;
1711 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1712 return (frame_bytes - 4) * 2 / ch;
1713 case AV_CODEC_ID_ADPCM_IMA_AMV:
1714 return (frame_bytes - 8) * 2;
1715 case AV_CODEC_ID_ADPCM_THP:
1716 case AV_CODEC_ID_ADPCM_THP_LE:
1718 return frame_bytes * 14 / (8 * ch);
1720 case AV_CODEC_ID_ADPCM_XA:
1721 return (frame_bytes / 128) * 224 / ch;
1722 case AV_CODEC_ID_INTERPLAY_DPCM:
1723 return (frame_bytes - 6 - ch) / ch;
1724 case AV_CODEC_ID_ROQ_DPCM:
1725 return (frame_bytes - 8) / ch;
1726 case AV_CODEC_ID_XAN_DPCM:
1727 return (frame_bytes - 2 * ch) / ch;
1728 case AV_CODEC_ID_MACE3:
1729 return 3 * frame_bytes / ch;
1730 case AV_CODEC_ID_MACE6:
1731 return 6 * frame_bytes / ch;
1732 case AV_CODEC_ID_PCM_LXF:
1733 return 2 * (frame_bytes / (5 * ch));
1734 case AV_CODEC_ID_IAC:
1735 case AV_CODEC_ID_IMC:
1736 return 4 * frame_bytes / ch;
1740 /* calc from frame_bytes, channels, and codec_tag */
1741 if (id == AV_CODEC_ID_SOL_DPCM) {
1743 return frame_bytes / ch;
1745 return frame_bytes * 2 / ch;
1750 /* calc from frame_bytes, channels, and block_align */
1751 int blocks = frame_bytes / ba;
1753 case AV_CODEC_ID_ADPCM_IMA_WAV:
1754 if (bps < 2 || bps > 5)
1756 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1757 case AV_CODEC_ID_ADPCM_IMA_DK3:
1758 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1759 case AV_CODEC_ID_ADPCM_IMA_DK4:
1760 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1761 case AV_CODEC_ID_ADPCM_IMA_RAD:
1762 return blocks * ((ba - 4 * ch) * 2 / ch);
1763 case AV_CODEC_ID_ADPCM_MS:
1764 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1765 case AV_CODEC_ID_ADPCM_MTAF:
1766 return blocks * (ba - 16) * 2 / ch;
1771 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1773 case AV_CODEC_ID_PCM_DVD:
1774 if(bps<4 || frame_bytes<3)
1776 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1777 case AV_CODEC_ID_PCM_BLURAY:
1778 if(bps<4 || frame_bytes<4)
1780 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1781 case AV_CODEC_ID_S302M:
1782 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1788 /* Fall back on using frame_size */
1789 if (frame_size > 1 && frame_bytes)
1792 //For WMA we currently have no other means to calculate duration thus we
1793 //do it here by assuming CBR, which is true for all known cases.
1794 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1795 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1796 return (frame_bytes * 8LL * sr) / bitrate;
1802 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1804 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1805 avctx->channels, avctx->block_align,
1806 avctx->codec_tag, avctx->bits_per_coded_sample,
1807 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1811 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1813 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1814 par->channels, par->block_align,
1815 par->codec_tag, par->bits_per_coded_sample,
1816 par->bit_rate, par->extradata, par->frame_size,
1821 int ff_thread_init(AVCodecContext *s)
1828 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1842 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1845 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1849 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1852 if (!codec->hw_configs || index < 0)
1854 for (i = 0; i <= index; i++)
1855 if (!codec->hw_configs[i])
1857 return &codec->hw_configs[index]->public;
1860 #if FF_API_USER_VISIBLE_AVHWACCEL
1861 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1866 void av_register_hwaccel(AVHWAccel *hwaccel)
1872 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1878 unsigned int avpriv_toupper4(unsigned int x)
1880 return av_toupper(x & 0xFF) +
1881 (av_toupper((x >> 8) & 0xFF) << 8) +
1882 (av_toupper((x >> 16) & 0xFF) << 16) +
1883 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1886 int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
1890 dst->owner[0] = src->owner[0];
1891 dst->owner[1] = src->owner[1];
1893 ret = av_frame_ref(dst->f, src->f);
1897 av_assert0(!dst->progress);
1899 if (src->progress &&
1900 !(dst->progress = av_buffer_ref(src->progress))) {
1901 ff_thread_release_buffer(dst->owner[0], dst);
1902 return AVERROR(ENOMEM);
1910 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1912 return ff_get_format(avctx, fmt);
1915 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1917 f->owner[0] = f->owner[1] = avctx;
1918 return ff_get_buffer(avctx, f->f, flags);
1921 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1924 av_frame_unref(f->f);
1927 void ff_thread_finish_setup(AVCodecContext *avctx)
1931 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1935 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1939 int ff_thread_can_start_frame(AVCodecContext *avctx)
1944 int ff_alloc_entries(AVCodecContext *avctx, int count)
1949 void ff_reset_entries(AVCodecContext *avctx)
1953 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1957 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1963 int avcodec_is_open(AVCodecContext *s)
1965 return !!s->internal;
1968 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1970 uint32_t *av_restrict state)
1974 av_assert0(p <= end);
1978 for (i = 0; i < 3; i++) {
1979 uint32_t tmp = *state << 8;
1980 *state = tmp + *(p++);
1981 if (tmp == 0x100 || p == end)
1986 if (p[-1] > 1 ) p += 3;
1987 else if (p[-2] ) p += 2;
1988 else if (p[-3]|(p[-1]-1)) p++;
1995 p = FFMIN(p, end) - 4;
1996 *state = AV_RB32(p);
2001 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
2003 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2008 *size = sizeof(*props);
2010 props->vbv_delay = UINT64_MAX;
2015 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2017 AVPacketSideData *tmp;
2018 AVCPBProperties *props;
2022 for (i = 0; i < avctx->nb_coded_side_data; i++)
2023 if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
2024 return (AVCPBProperties *)avctx->coded_side_data[i].data;
2026 props = av_cpb_properties_alloc(&size);
2030 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2036 avctx->coded_side_data = tmp;
2037 avctx->nb_coded_side_data++;
2039 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2040 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2041 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2046 static void codec_parameters_reset(AVCodecParameters *par)
2048 av_freep(&par->extradata);
2050 memset(par, 0, sizeof(*par));
2052 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2053 par->codec_id = AV_CODEC_ID_NONE;
2055 par->field_order = AV_FIELD_UNKNOWN;
2056 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2057 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2058 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2059 par->color_space = AVCOL_SPC_UNSPECIFIED;
2060 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2061 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2062 par->profile = FF_PROFILE_UNKNOWN;
2063 par->level = FF_LEVEL_UNKNOWN;
2066 AVCodecParameters *avcodec_parameters_alloc(void)
2068 AVCodecParameters *par = av_mallocz(sizeof(*par));
2072 codec_parameters_reset(par);
2076 void avcodec_parameters_free(AVCodecParameters **ppar)
2078 AVCodecParameters *par = *ppar;
2082 codec_parameters_reset(par);
2087 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2089 codec_parameters_reset(dst);
2090 memcpy(dst, src, sizeof(*dst));
2092 dst->extradata = NULL;
2093 dst->extradata_size = 0;
2094 if (src->extradata) {
2095 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2096 if (!dst->extradata)
2097 return AVERROR(ENOMEM);
2098 memcpy(dst->extradata, src->extradata, src->extradata_size);
2099 dst->extradata_size = src->extradata_size;
2105 int avcodec_parameters_from_context(AVCodecParameters *par,
2106 const AVCodecContext *codec)
2108 codec_parameters_reset(par);
2110 par->codec_type = codec->codec_type;
2111 par->codec_id = codec->codec_id;
2112 par->codec_tag = codec->codec_tag;
2114 par->bit_rate = codec->bit_rate;
2115 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2116 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2117 par->profile = codec->profile;
2118 par->level = codec->level;
2120 switch (par->codec_type) {
2121 case AVMEDIA_TYPE_VIDEO:
2122 par->format = codec->pix_fmt;
2123 par->width = codec->width;
2124 par->height = codec->height;
2125 par->field_order = codec->field_order;
2126 par->color_range = codec->color_range;
2127 par->color_primaries = codec->color_primaries;
2128 par->color_trc = codec->color_trc;
2129 par->color_space = codec->colorspace;
2130 par->chroma_location = codec->chroma_sample_location;
2131 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2132 par->video_delay = codec->has_b_frames;
2134 case AVMEDIA_TYPE_AUDIO:
2135 par->format = codec->sample_fmt;
2136 par->channel_layout = codec->channel_layout;
2137 par->channels = codec->channels;
2138 par->sample_rate = codec->sample_rate;
2139 par->block_align = codec->block_align;
2140 par->frame_size = codec->frame_size;
2141 par->initial_padding = codec->initial_padding;
2142 par->trailing_padding = codec->trailing_padding;
2143 par->seek_preroll = codec->seek_preroll;
2145 case AVMEDIA_TYPE_SUBTITLE:
2146 par->width = codec->width;
2147 par->height = codec->height;
2151 if (codec->extradata) {
2152 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2153 if (!par->extradata)
2154 return AVERROR(ENOMEM);
2155 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2156 par->extradata_size = codec->extradata_size;
2162 int avcodec_parameters_to_context(AVCodecContext *codec,
2163 const AVCodecParameters *par)
2165 codec->codec_type = par->codec_type;
2166 codec->codec_id = par->codec_id;
2167 codec->codec_tag = par->codec_tag;
2169 codec->bit_rate = par->bit_rate;
2170 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2171 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2172 codec->profile = par->profile;
2173 codec->level = par->level;
2175 switch (par->codec_type) {
2176 case AVMEDIA_TYPE_VIDEO:
2177 codec->pix_fmt = par->format;
2178 codec->width = par->width;
2179 codec->height = par->height;
2180 codec->field_order = par->field_order;
2181 codec->color_range = par->color_range;
2182 codec->color_primaries = par->color_primaries;
2183 codec->color_trc = par->color_trc;
2184 codec->colorspace = par->color_space;
2185 codec->chroma_sample_location = par->chroma_location;
2186 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2187 codec->has_b_frames = par->video_delay;
2189 case AVMEDIA_TYPE_AUDIO:
2190 codec->sample_fmt = par->format;
2191 codec->channel_layout = par->channel_layout;
2192 codec->channels = par->channels;
2193 codec->sample_rate = par->sample_rate;
2194 codec->block_align = par->block_align;
2195 codec->frame_size = par->frame_size;
2197 codec->initial_padding = par->initial_padding;
2198 codec->trailing_padding = par->trailing_padding;
2199 codec->seek_preroll = par->seek_preroll;
2201 case AVMEDIA_TYPE_SUBTITLE:
2202 codec->width = par->width;
2203 codec->height = par->height;
2207 if (par->extradata) {
2208 av_freep(&codec->extradata);
2209 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2210 if (!codec->extradata)
2211 return AVERROR(ENOMEM);
2212 memcpy(codec->extradata, par->extradata, par->extradata_size);
2213 codec->extradata_size = par->extradata_size;
2219 static unsigned bcd2uint(uint8_t bcd)
2221 unsigned low = bcd & 0xf;
2222 unsigned high = bcd >> 4;
2223 if (low > 9 || high > 9)
2225 return low + 10*high;
2228 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
2229 void **data, size_t *sei_size)
2231 AVFrameSideData *sd = NULL;
2238 sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE);
2244 tc = (uint32_t*)sd->data;
2247 *sei_size = sizeof(uint32_t) * 4;
2248 *data = av_mallocz(*sei_size + prefix_len);
2250 return AVERROR(ENOMEM);
2251 sei_data = (uint8_t*)*data + prefix_len;
2253 init_put_bits(&pb, sei_data, *sei_size);
2254 put_bits(&pb, 2, m); // num_clock_ts
2256 for (int j = 1; j <= m; j++) {
2257 uint32_t tcsmpte = tc[j];
2258 unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2259 unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2260 unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2261 unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2262 unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2264 /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
2265 if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
2268 if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
2269 pc = !!(tcsmpte & 1 << 7);
2271 pc = !!(tcsmpte & 1 << 23);
2272 ff = (ff + pc) & 0x7f;
2275 put_bits(&pb, 1, 1); // clock_timestamp_flag
2276 put_bits(&pb, 1, 1); // units_field_based_flag
2277 put_bits(&pb, 5, 0); // counting_type
2278 put_bits(&pb, 1, 1); // full_timestamp_flag
2279 put_bits(&pb, 1, 0); // discontinuity_flag
2280 put_bits(&pb, 1, drop);
2281 put_bits(&pb, 9, ff);
2282 put_bits(&pb, 6, ss);
2283 put_bits(&pb, 6, mm);
2284 put_bits(&pb, 5, hh);
2285 put_bits(&pb, 5, 0);
2287 flush_put_bits(&pb);
2292 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2294 AVRational framerate = avctx->framerate;
2295 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2298 if (!(framerate.num && framerate.den))
2299 framerate = av_inv_q(avctx->time_base);
2300 if (!(framerate.num && framerate.den))
2303 if (!bits_per_coded_sample) {
2304 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2305 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2307 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2308 framerate.num / framerate.den;
2313 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2314 const int * array_valid_values, int default_value)
2319 ref_val = array_valid_values[i];
2320 if (ref_val == INT_MAX)
2326 /* val is not a valid value */
2327 av_log(ctx, AV_LOG_DEBUG,
2328 "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2329 return default_value;