3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
33 #include "libavutil/channel_layout.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
51 #include "frame_thread_encoder.h"
55 #include "bytestream.h"
59 #include <stdatomic.h>
66 #include "libavutil/ffversion.h"
67 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
69 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
71 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
74 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
79 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
80 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
83 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
86 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
91 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
92 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
95 int av_codec_is_encoder(const AVCodec *codec)
97 return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
100 int av_codec_is_decoder(const AVCodec *codec)
102 return codec && (codec->decode || codec->receive_frame);
105 int ff_set_dimensions(AVCodecContext *s, int width, int height)
107 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
112 s->coded_width = width;
113 s->coded_height = height;
114 s->width = AV_CEIL_RSHIFT(width, s->lowres);
115 s->height = AV_CEIL_RSHIFT(height, s->lowres);
120 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
122 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
125 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
127 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
130 avctx->sample_aspect_ratio = sar;
135 int ff_side_data_update_matrix_encoding(AVFrame *frame,
136 enum AVMatrixEncoding matrix_encoding)
138 AVFrameSideData *side_data;
139 enum AVMatrixEncoding *data;
141 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
143 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
144 sizeof(enum AVMatrixEncoding));
147 return AVERROR(ENOMEM);
149 data = (enum AVMatrixEncoding*)side_data->data;
150 *data = matrix_encoding;
155 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
156 int linesize_align[AV_NUM_DATA_POINTERS])
161 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
164 w_align = 1 << desc->log2_chroma_w;
165 h_align = 1 << desc->log2_chroma_h;
168 switch (s->pix_fmt) {
169 case AV_PIX_FMT_YUV420P:
170 case AV_PIX_FMT_YUYV422:
171 case AV_PIX_FMT_YVYU422:
172 case AV_PIX_FMT_UYVY422:
173 case AV_PIX_FMT_YUV422P:
174 case AV_PIX_FMT_YUV440P:
175 case AV_PIX_FMT_YUV444P:
176 case AV_PIX_FMT_GBRP:
177 case AV_PIX_FMT_GBRAP:
178 case AV_PIX_FMT_GRAY8:
179 case AV_PIX_FMT_GRAY16BE:
180 case AV_PIX_FMT_GRAY16LE:
181 case AV_PIX_FMT_YUVJ420P:
182 case AV_PIX_FMT_YUVJ422P:
183 case AV_PIX_FMT_YUVJ440P:
184 case AV_PIX_FMT_YUVJ444P:
185 case AV_PIX_FMT_YUVA420P:
186 case AV_PIX_FMT_YUVA422P:
187 case AV_PIX_FMT_YUVA444P:
188 case AV_PIX_FMT_YUV420P9LE:
189 case AV_PIX_FMT_YUV420P9BE:
190 case AV_PIX_FMT_YUV420P10LE:
191 case AV_PIX_FMT_YUV420P10BE:
192 case AV_PIX_FMT_YUV420P12LE:
193 case AV_PIX_FMT_YUV420P12BE:
194 case AV_PIX_FMT_YUV420P14LE:
195 case AV_PIX_FMT_YUV420P14BE:
196 case AV_PIX_FMT_YUV420P16LE:
197 case AV_PIX_FMT_YUV420P16BE:
198 case AV_PIX_FMT_YUVA420P9LE:
199 case AV_PIX_FMT_YUVA420P9BE:
200 case AV_PIX_FMT_YUVA420P10LE:
201 case AV_PIX_FMT_YUVA420P10BE:
202 case AV_PIX_FMT_YUVA420P16LE:
203 case AV_PIX_FMT_YUVA420P16BE:
204 case AV_PIX_FMT_YUV422P9LE:
205 case AV_PIX_FMT_YUV422P9BE:
206 case AV_PIX_FMT_YUV422P10LE:
207 case AV_PIX_FMT_YUV422P10BE:
208 case AV_PIX_FMT_YUV422P12LE:
209 case AV_PIX_FMT_YUV422P12BE:
210 case AV_PIX_FMT_YUV422P14LE:
211 case AV_PIX_FMT_YUV422P14BE:
212 case AV_PIX_FMT_YUV422P16LE:
213 case AV_PIX_FMT_YUV422P16BE:
214 case AV_PIX_FMT_YUVA422P9LE:
215 case AV_PIX_FMT_YUVA422P9BE:
216 case AV_PIX_FMT_YUVA422P10LE:
217 case AV_PIX_FMT_YUVA422P10BE:
218 case AV_PIX_FMT_YUVA422P12LE:
219 case AV_PIX_FMT_YUVA422P12BE:
220 case AV_PIX_FMT_YUVA422P16LE:
221 case AV_PIX_FMT_YUVA422P16BE:
222 case AV_PIX_FMT_YUV440P10LE:
223 case AV_PIX_FMT_YUV440P10BE:
224 case AV_PIX_FMT_YUV440P12LE:
225 case AV_PIX_FMT_YUV440P12BE:
226 case AV_PIX_FMT_YUV444P9LE:
227 case AV_PIX_FMT_YUV444P9BE:
228 case AV_PIX_FMT_YUV444P10LE:
229 case AV_PIX_FMT_YUV444P10BE:
230 case AV_PIX_FMT_YUV444P12LE:
231 case AV_PIX_FMT_YUV444P12BE:
232 case AV_PIX_FMT_YUV444P14LE:
233 case AV_PIX_FMT_YUV444P14BE:
234 case AV_PIX_FMT_YUV444P16LE:
235 case AV_PIX_FMT_YUV444P16BE:
236 case AV_PIX_FMT_YUVA444P9LE:
237 case AV_PIX_FMT_YUVA444P9BE:
238 case AV_PIX_FMT_YUVA444P10LE:
239 case AV_PIX_FMT_YUVA444P10BE:
240 case AV_PIX_FMT_YUVA444P12LE:
241 case AV_PIX_FMT_YUVA444P12BE:
242 case AV_PIX_FMT_YUVA444P16LE:
243 case AV_PIX_FMT_YUVA444P16BE:
244 case AV_PIX_FMT_GBRP9LE:
245 case AV_PIX_FMT_GBRP9BE:
246 case AV_PIX_FMT_GBRP10LE:
247 case AV_PIX_FMT_GBRP10BE:
248 case AV_PIX_FMT_GBRP12LE:
249 case AV_PIX_FMT_GBRP12BE:
250 case AV_PIX_FMT_GBRP14LE:
251 case AV_PIX_FMT_GBRP14BE:
252 case AV_PIX_FMT_GBRP16LE:
253 case AV_PIX_FMT_GBRP16BE:
254 case AV_PIX_FMT_GBRAP12LE:
255 case AV_PIX_FMT_GBRAP12BE:
256 case AV_PIX_FMT_GBRAP16LE:
257 case AV_PIX_FMT_GBRAP16BE:
258 w_align = 16; //FIXME assume 16 pixel per macroblock
259 h_align = 16 * 2; // interlaced needs 2 macroblocks height
261 case AV_PIX_FMT_YUV411P:
262 case AV_PIX_FMT_YUVJ411P:
263 case AV_PIX_FMT_UYYVYY411:
267 case AV_PIX_FMT_YUV410P:
268 if (s->codec_id == AV_CODEC_ID_SVQ1) {
273 case AV_PIX_FMT_RGB555:
274 if (s->codec_id == AV_CODEC_ID_RPZA) {
278 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
283 case AV_PIX_FMT_PAL8:
284 case AV_PIX_FMT_BGR8:
285 case AV_PIX_FMT_RGB8:
286 if (s->codec_id == AV_CODEC_ID_SMC ||
287 s->codec_id == AV_CODEC_ID_CINEPAK) {
291 if (s->codec_id == AV_CODEC_ID_JV ||
292 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
297 case AV_PIX_FMT_BGR24:
298 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
299 (s->codec_id == AV_CODEC_ID_ZLIB)) {
304 case AV_PIX_FMT_RGB24:
305 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
314 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
315 w_align = FFMAX(w_align, 8);
318 *width = FFALIGN(*width, w_align);
319 *height = FFALIGN(*height, h_align);
320 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
321 s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
322 s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
324 // some of the optimized chroma MC reads one line too much
325 // which is also done in mpeg decoders with lowres > 0
328 // H.264 uses edge emulation for out of frame motion vectors, for this
329 // it requires a temporary area large enough to hold a 21x21 block,
330 // increasing witdth ensure that the temporary area is large enough,
331 // the next rounded up width is 32
332 *width = FFMAX(*width, 32);
335 for (i = 0; i < 4; i++)
336 linesize_align[i] = STRIDE_ALIGN;
339 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
341 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
342 int chroma_shift = desc->log2_chroma_w;
343 int linesize_align[AV_NUM_DATA_POINTERS];
346 avcodec_align_dimensions2(s, width, height, linesize_align);
347 align = FFMAX(linesize_align[0], linesize_align[3]);
348 linesize_align[1] <<= chroma_shift;
349 linesize_align[2] <<= chroma_shift;
350 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
351 *width = FFALIGN(*width, align);
354 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
356 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
357 return AVERROR(EINVAL);
360 *xpos = (pos&1) * 128;
361 *ypos = ((pos>>1)^(pos<4)) * 128;
366 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
370 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
371 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
374 return AVCHROMA_LOC_UNSPECIFIED;
377 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
378 enum AVSampleFormat sample_fmt, const uint8_t *buf,
379 int buf_size, int align)
381 int ch, planar, needed_size, ret = 0;
383 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
384 frame->nb_samples, sample_fmt,
386 if (buf_size < needed_size)
387 return AVERROR(EINVAL);
389 planar = av_sample_fmt_is_planar(sample_fmt);
390 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
391 if (!(frame->extended_data = av_mallocz_array(nb_channels,
392 sizeof(*frame->extended_data))))
393 return AVERROR(ENOMEM);
395 frame->extended_data = frame->data;
398 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
399 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
400 sample_fmt, align)) < 0) {
401 if (frame->extended_data != frame->data)
402 av_freep(&frame->extended_data);
405 if (frame->extended_data != frame->data) {
406 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
407 frame->data[ch] = frame->extended_data[ch];
413 void ff_color_frame(AVFrame *frame, const int c[4])
415 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
418 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
420 for (p = 0; p<desc->nb_components; p++) {
421 uint8_t *dst = frame->data[p];
422 int is_chroma = p == 1 || p == 2;
423 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
424 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
425 if (desc->comp[0].depth >= 9) {
426 ((uint16_t*)dst)[0] = c[p];
427 av_memcpy_backptr(dst + 2, 2, bytes - 2);
428 dst += frame->linesize[p];
429 for (y = 1; y < height; y++) {
430 memcpy(dst, frame->data[p], 2*bytes);
431 dst += frame->linesize[p];
434 for (y = 0; y < height; y++) {
435 memset(dst, c[p], bytes);
436 dst += frame->linesize[p];
442 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
446 for (i = 0; i < count; i++) {
447 int r = func(c, (char *)arg + i * size);
455 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
459 for (i = 0; i < count; i++) {
460 int r = func(c, arg, i, 0);
468 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
471 while (tags->pix_fmt >= 0) {
472 if (tags->fourcc == fourcc)
473 return tags->pix_fmt;
476 return AV_PIX_FMT_NONE;
479 #if FF_API_CODEC_GET_SET
480 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
481 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
483 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
484 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
486 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
488 return codec->properties;
491 int av_codec_get_max_lowres(const AVCodec *codec)
493 return codec->max_lowres;
497 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
498 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
501 static int64_t get_bit_rate(AVCodecContext *ctx)
506 switch (ctx->codec_type) {
507 case AVMEDIA_TYPE_VIDEO:
508 case AVMEDIA_TYPE_DATA:
509 case AVMEDIA_TYPE_SUBTITLE:
510 case AVMEDIA_TYPE_ATTACHMENT:
511 bit_rate = ctx->bit_rate;
513 case AVMEDIA_TYPE_AUDIO:
514 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
515 if (bits_per_sample) {
516 bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
517 if (bit_rate > INT64_MAX / bits_per_sample) {
520 bit_rate *= bits_per_sample;
522 bit_rate = ctx->bit_rate;
532 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
534 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
535 ff_mutex_lock(&codec_mutex);
538 static void ff_unlock_avcodec(const AVCodec *codec)
540 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
541 ff_mutex_unlock(&codec_mutex);
544 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
547 int codec_init_ok = 0;
548 AVDictionary *tmp = NULL;
549 const AVPixFmtDescriptor *pixdesc;
550 AVCodecInternal *avci;
552 if (avcodec_is_open(avctx))
555 if (!codec && !avctx->codec) {
556 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
557 return AVERROR(EINVAL);
559 if (codec && avctx->codec && codec != avctx->codec) {
560 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
561 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
562 return AVERROR(EINVAL);
565 codec = avctx->codec;
567 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
568 return AVERROR(EINVAL);
571 av_dict_copy(&tmp, *options, 0);
573 ff_lock_avcodec(avctx, codec);
575 avci = av_mallocz(sizeof(*avci));
577 ret = AVERROR(ENOMEM);
580 avctx->internal = avci;
582 #if FF_API_OLD_ENCDEC
583 avci->to_free = av_frame_alloc();
584 avci->compat_decode_frame = av_frame_alloc();
585 avci->compat_encode_packet = av_packet_alloc();
586 if (!avci->to_free || !avci->compat_decode_frame || !avci->compat_encode_packet) {
587 ret = AVERROR(ENOMEM);
591 avci->buffer_frame = av_frame_alloc();
592 avci->buffer_pkt = av_packet_alloc();
593 avci->es.in_frame = av_frame_alloc();
594 avci->ds.in_pkt = av_packet_alloc();
595 avci->last_pkt_props = av_packet_alloc();
596 avci->pkt_props = av_fifo_alloc(sizeof(*avci->last_pkt_props));
597 if (!avci->buffer_frame || !avci->buffer_pkt ||
598 !avci->es.in_frame || !avci->ds.in_pkt ||
599 !avci->last_pkt_props || !avci->pkt_props) {
600 ret = AVERROR(ENOMEM);
604 avci->skip_samples_multiplier = 1;
606 if (codec->priv_data_size > 0) {
607 if (!avctx->priv_data) {
608 avctx->priv_data = av_mallocz(codec->priv_data_size);
609 if (!avctx->priv_data) {
610 ret = AVERROR(ENOMEM);
613 if (codec->priv_class) {
614 *(const AVClass **)avctx->priv_data = codec->priv_class;
615 av_opt_set_defaults(avctx->priv_data);
618 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
621 avctx->priv_data = NULL;
623 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
626 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
627 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
628 ret = AVERROR(EINVAL);
632 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
633 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
634 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
635 if (avctx->coded_width && avctx->coded_height)
636 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
637 else if (avctx->width && avctx->height)
638 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
643 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
644 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
645 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
646 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
647 ff_set_dimensions(avctx, 0, 0);
650 if (avctx->width > 0 && avctx->height > 0) {
651 if (av_image_check_sar(avctx->width, avctx->height,
652 avctx->sample_aspect_ratio) < 0) {
653 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
654 avctx->sample_aspect_ratio.num,
655 avctx->sample_aspect_ratio.den);
656 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
660 /* if the decoder init function was already called previously,
661 * free the already allocated subtitle_header before overwriting it */
662 if (av_codec_is_decoder(codec))
663 av_freep(&avctx->subtitle_header);
665 if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
666 av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
667 ret = AVERROR(EINVAL);
670 if (av_codec_is_decoder(codec) &&
671 codec->type == AVMEDIA_TYPE_AUDIO &&
672 !(codec->capabilities & AV_CODEC_CAP_CHANNEL_CONF) &&
673 avctx->channels == 0) {
674 av_log(avctx, AV_LOG_ERROR, "Decoder requires channel count but channels not set\n");
675 ret = AVERROR(EINVAL);
679 if (avctx->sample_rate < 0) {
680 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
681 ret = AVERROR(EINVAL);
684 if (avctx->block_align < 0) {
685 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
686 ret = AVERROR(EINVAL);
690 #if FF_API_THREAD_SAFE_CALLBACKS
691 FF_DISABLE_DEPRECATION_WARNINGS
692 if ((avctx->thread_type & FF_THREAD_FRAME) &&
693 avctx->get_buffer2 != avcodec_default_get_buffer2 &&
694 !avctx->thread_safe_callbacks) {
695 av_log(avctx, AV_LOG_WARNING, "Requested frame threading with a "
696 "custom get_buffer2() implementation which is not marked as "
697 "thread safe. This is not supported anymore, make your "
698 "callback thread-safe.\n");
700 FF_ENABLE_DEPRECATION_WARNINGS
703 avctx->codec = codec;
704 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
705 avctx->codec_id == AV_CODEC_ID_NONE) {
706 avctx->codec_type = codec->type;
707 avctx->codec_id = codec->id;
709 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
710 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
711 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
712 ret = AVERROR(EINVAL);
715 avctx->frame_number = 0;
716 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
718 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
719 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
720 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
721 const AVCodec *codec2;
722 av_log(avctx, AV_LOG_ERROR,
723 "The %s '%s' is experimental but experimental codecs are not enabled, "
724 "add '-strict %d' if you want to use it.\n",
725 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
726 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
727 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
728 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
729 codec_string, codec2->name);
730 ret = AVERROR_EXPERIMENTAL;
734 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
735 (!avctx->time_base.num || !avctx->time_base.den)) {
736 avctx->time_base.num = 1;
737 avctx->time_base.den = avctx->sample_rate;
741 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
743 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
744 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
745 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
746 ff_lock_avcodec(avctx, codec);
751 if (av_codec_is_decoder(avctx->codec)) {
752 ret = ff_decode_bsfs_init(avctx);
758 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
759 ret = ff_thread_init(avctx);
764 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
765 avctx->thread_count = 1;
767 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
768 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
769 avctx->codec->max_lowres);
770 avctx->lowres = avctx->codec->max_lowres;
773 if (av_codec_is_encoder(avctx->codec)) {
775 #if FF_API_CODED_FRAME
776 FF_DISABLE_DEPRECATION_WARNINGS
777 avctx->coded_frame = av_frame_alloc();
778 if (!avctx->coded_frame) {
779 ret = AVERROR(ENOMEM);
782 FF_ENABLE_DEPRECATION_WARNINGS
785 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
786 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
787 ret = AVERROR(EINVAL);
791 if (avctx->codec->sample_fmts) {
792 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
793 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
795 if (avctx->channels == 1 &&
796 av_get_planar_sample_fmt(avctx->sample_fmt) ==
797 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
798 avctx->sample_fmt = avctx->codec->sample_fmts[i];
802 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
804 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
805 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
806 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
807 ret = AVERROR(EINVAL);
811 if (avctx->codec->pix_fmts) {
812 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
813 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
815 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
816 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
817 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
819 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
820 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
821 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
822 ret = AVERROR(EINVAL);
825 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
826 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
827 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
828 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
829 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
830 avctx->color_range = AVCOL_RANGE_JPEG;
832 if (avctx->codec->supported_samplerates) {
833 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
834 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
836 if (avctx->codec->supported_samplerates[i] == 0) {
837 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
839 ret = AVERROR(EINVAL);
843 if (avctx->sample_rate < 0) {
844 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
846 ret = AVERROR(EINVAL);
849 if (avctx->codec->channel_layouts) {
850 if (!avctx->channel_layout) {
851 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
853 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
854 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
856 if (avctx->codec->channel_layouts[i] == 0) {
858 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
859 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
860 ret = AVERROR(EINVAL);
865 if (avctx->channel_layout && avctx->channels) {
866 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
867 if (channels != avctx->channels) {
869 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
870 av_log(avctx, AV_LOG_ERROR,
871 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
872 buf, channels, avctx->channels);
873 ret = AVERROR(EINVAL);
876 } else if (avctx->channel_layout) {
877 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
879 if (avctx->channels < 0) {
880 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
882 ret = AVERROR(EINVAL);
885 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
886 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
887 if ( avctx->bits_per_raw_sample < 0
888 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
889 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
890 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
891 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
893 if (avctx->width <= 0 || avctx->height <= 0) {
894 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
895 ret = AVERROR(EINVAL);
899 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
900 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
901 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
904 if (!avctx->rc_initial_buffer_occupancy)
905 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
907 if (avctx->ticks_per_frame && avctx->time_base.num &&
908 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
909 av_log(avctx, AV_LOG_ERROR,
910 "ticks_per_frame %d too large for the timebase %d/%d.",
911 avctx->ticks_per_frame,
912 avctx->time_base.num,
913 avctx->time_base.den);
917 if (avctx->hw_frames_ctx) {
918 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
919 if (frames_ctx->format != avctx->pix_fmt) {
920 av_log(avctx, AV_LOG_ERROR,
921 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
922 ret = AVERROR(EINVAL);
925 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
926 avctx->sw_pix_fmt != frames_ctx->sw_format) {
927 av_log(avctx, AV_LOG_ERROR,
928 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
929 "and AVHWFramesContext.sw_format (%s)\n",
930 av_get_pix_fmt_name(avctx->sw_pix_fmt),
931 av_get_pix_fmt_name(frames_ctx->sw_format));
932 ret = AVERROR(EINVAL);
935 avctx->sw_pix_fmt = frames_ctx->sw_format;
939 avctx->pts_correction_num_faulty_pts =
940 avctx->pts_correction_num_faulty_dts = 0;
941 avctx->pts_correction_last_pts =
942 avctx->pts_correction_last_dts = INT64_MIN;
944 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
945 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
946 av_log(avctx, AV_LOG_WARNING,
947 "gray decoding requested but not enabled at configuration time\n");
948 if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
949 avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
952 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
953 || avci->frame_thread_encoder)) {
954 ret = avctx->codec->init(avctx);
964 if (av_codec_is_decoder(avctx->codec)) {
965 if (!avctx->bit_rate)
966 avctx->bit_rate = get_bit_rate(avctx);
967 /* validate channel layout from the decoder */
968 if (avctx->channel_layout) {
969 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
970 if (!avctx->channels)
971 avctx->channels = channels;
972 else if (channels != avctx->channels) {
974 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
975 av_log(avctx, AV_LOG_WARNING,
976 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
977 "ignoring specified channel layout\n",
978 buf, channels, avctx->channels);
979 avctx->channel_layout = 0;
982 if (avctx->channels && avctx->channels < 0 ||
983 avctx->channels > FF_SANE_NB_CHANNELS) {
984 ret = AVERROR(EINVAL);
987 if (avctx->bits_per_coded_sample < 0) {
988 ret = AVERROR(EINVAL);
991 if (avctx->sub_charenc) {
992 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
993 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
994 "supported with subtitles codecs\n");
995 ret = AVERROR(EINVAL);
997 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
998 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
999 "subtitles character encoding will be ignored\n",
1000 avctx->codec_descriptor->name);
1001 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1003 /* input character encoding is set for a text based subtitle
1004 * codec at this point */
1005 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1006 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1008 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1010 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1011 if (cd == (iconv_t)-1) {
1012 ret = AVERROR(errno);
1013 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1014 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1019 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1020 "conversion needs a libavcodec built with iconv support "
1021 "for this codec\n");
1022 ret = AVERROR(ENOSYS);
1029 #if FF_API_AVCTX_TIMEBASE
1030 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1031 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1034 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1035 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1039 ff_unlock_avcodec(codec);
1041 av_dict_free(options);
1047 if (avctx->codec && avctx->codec->close &&
1048 (codec_init_ok > 0 || (codec_init_ok < 0 &&
1049 avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
1050 avctx->codec->close(avctx);
1052 if (HAVE_THREADS && avci->thread_ctx)
1053 ff_thread_free(avctx);
1055 if (codec->priv_class && avctx->priv_data)
1056 av_opt_free(avctx->priv_data);
1059 if (av_codec_is_encoder(avctx->codec)) {
1060 #if FF_API_CODED_FRAME
1061 FF_DISABLE_DEPRECATION_WARNINGS
1062 av_frame_free(&avctx->coded_frame);
1063 FF_ENABLE_DEPRECATION_WARNINGS
1065 av_freep(&avctx->extradata);
1066 avctx->extradata_size = 0;
1070 av_freep(&avctx->priv_data);
1071 av_freep(&avctx->subtitle_header);
1073 #if FF_API_OLD_ENCDEC
1074 av_frame_free(&avci->to_free);
1075 av_frame_free(&avci->compat_decode_frame);
1076 av_packet_free(&avci->compat_encode_packet);
1078 av_frame_free(&avci->buffer_frame);
1079 av_packet_free(&avci->buffer_pkt);
1080 av_packet_free(&avci->last_pkt_props);
1081 av_fifo_freep(&avci->pkt_props);
1083 av_packet_free(&avci->ds.in_pkt);
1084 av_frame_free(&avci->es.in_frame);
1085 av_bsf_free(&avci->bsf);
1087 av_buffer_unref(&avci->pool);
1089 avctx->internal = NULL;
1090 avctx->codec = NULL;
1094 void avcodec_flush_buffers(AVCodecContext *avctx)
1096 AVCodecInternal *avci = avctx->internal;
1098 if (av_codec_is_encoder(avctx->codec)) {
1099 int caps = avctx->codec->capabilities;
1101 if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1102 // Only encoders that explicitly declare support for it can be
1103 // flushed. Otherwise, this is a no-op.
1104 av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1105 "that doesn't support it\n");
1109 // We haven't implemented flushing for frame-threaded encoders.
1110 av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
1114 avci->draining_done = 0;
1115 avci->nb_draining_errors = 0;
1116 av_frame_unref(avci->buffer_frame);
1117 #if FF_API_OLD_ENCDEC
1118 av_frame_unref(avci->compat_decode_frame);
1119 av_packet_unref(avci->compat_encode_packet);
1121 av_packet_unref(avci->buffer_pkt);
1123 av_packet_unref(avci->last_pkt_props);
1124 while (av_fifo_size(avci->pkt_props) >= sizeof(*avci->last_pkt_props)) {
1125 av_fifo_generic_read(avci->pkt_props,
1126 avci->last_pkt_props, sizeof(*avci->last_pkt_props),
1128 av_packet_unref(avci->last_pkt_props);
1130 av_fifo_reset(avci->pkt_props);
1132 av_frame_unref(avci->es.in_frame);
1133 av_packet_unref(avci->ds.in_pkt);
1135 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1136 ff_thread_flush(avctx);
1137 else if (avctx->codec->flush)
1138 avctx->codec->flush(avctx);
1140 avctx->pts_correction_last_pts =
1141 avctx->pts_correction_last_dts = INT64_MIN;
1143 if (av_codec_is_decoder(avctx->codec))
1144 av_bsf_flush(avci->bsf);
1146 #if FF_API_OLD_ENCDEC
1147 FF_DISABLE_DEPRECATION_WARNINGS
1148 if (!avctx->refcounted_frames)
1149 av_frame_unref(avci->to_free);
1150 FF_ENABLE_DEPRECATION_WARNINGS
1154 void avsubtitle_free(AVSubtitle *sub)
1158 for (i = 0; i < sub->num_rects; i++) {
1159 av_freep(&sub->rects[i]->data[0]);
1160 av_freep(&sub->rects[i]->data[1]);
1161 av_freep(&sub->rects[i]->data[2]);
1162 av_freep(&sub->rects[i]->data[3]);
1163 av_freep(&sub->rects[i]->text);
1164 av_freep(&sub->rects[i]->ass);
1165 av_freep(&sub->rects[i]);
1168 av_freep(&sub->rects);
1170 memset(sub, 0, sizeof(*sub));
1173 av_cold int avcodec_close(AVCodecContext *avctx)
1180 if (avcodec_is_open(avctx)) {
1181 if (CONFIG_FRAME_THREAD_ENCODER &&
1182 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1183 ff_frame_thread_encoder_free(avctx);
1185 if (HAVE_THREADS && avctx->internal->thread_ctx)
1186 ff_thread_free(avctx);
1187 if (avctx->codec && avctx->codec->close)
1188 avctx->codec->close(avctx);
1189 avctx->internal->byte_buffer_size = 0;
1190 av_freep(&avctx->internal->byte_buffer);
1191 #if FF_API_OLD_ENCDEC
1192 av_frame_free(&avctx->internal->to_free);
1193 av_frame_free(&avctx->internal->compat_decode_frame);
1194 av_packet_free(&avctx->internal->compat_encode_packet);
1196 av_frame_free(&avctx->internal->buffer_frame);
1197 av_packet_free(&avctx->internal->buffer_pkt);
1198 av_packet_unref(avctx->internal->last_pkt_props);
1199 while (av_fifo_size(avctx->internal->pkt_props) >=
1200 sizeof(*avctx->internal->last_pkt_props)) {
1201 av_fifo_generic_read(avctx->internal->pkt_props,
1202 avctx->internal->last_pkt_props,
1203 sizeof(*avctx->internal->last_pkt_props),
1205 av_packet_unref(avctx->internal->last_pkt_props);
1207 av_packet_free(&avctx->internal->last_pkt_props);
1208 av_fifo_freep(&avctx->internal->pkt_props);
1210 av_packet_free(&avctx->internal->ds.in_pkt);
1211 av_frame_free(&avctx->internal->es.in_frame);
1213 av_buffer_unref(&avctx->internal->pool);
1215 if (avctx->hwaccel && avctx->hwaccel->uninit)
1216 avctx->hwaccel->uninit(avctx);
1217 av_freep(&avctx->internal->hwaccel_priv_data);
1219 av_bsf_free(&avctx->internal->bsf);
1221 av_freep(&avctx->internal);
1224 for (i = 0; i < avctx->nb_coded_side_data; i++)
1225 av_freep(&avctx->coded_side_data[i].data);
1226 av_freep(&avctx->coded_side_data);
1227 avctx->nb_coded_side_data = 0;
1229 av_buffer_unref(&avctx->hw_frames_ctx);
1230 av_buffer_unref(&avctx->hw_device_ctx);
1232 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1233 av_opt_free(avctx->priv_data);
1235 av_freep(&avctx->priv_data);
1236 if (av_codec_is_encoder(avctx->codec)) {
1237 av_freep(&avctx->extradata);
1238 #if FF_API_CODED_FRAME
1239 FF_DISABLE_DEPRECATION_WARNINGS
1240 av_frame_free(&avctx->coded_frame);
1241 FF_ENABLE_DEPRECATION_WARNINGS
1244 avctx->codec = NULL;
1245 avctx->active_thread_type = 0;
1250 const char *avcodec_get_name(enum AVCodecID id)
1252 const AVCodecDescriptor *cd;
1253 const AVCodec *codec;
1255 if (id == AV_CODEC_ID_NONE)
1257 cd = avcodec_descriptor_get(id);
1260 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1261 codec = avcodec_find_decoder(id);
1264 codec = avcodec_find_encoder(id);
1267 return "unknown_codec";
1270 #if FF_API_TAG_STRING
1271 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1273 int i, len, ret = 0;
1275 #define TAG_PRINT(x) \
1276 (((x) >= '0' && (x) <= '9') || \
1277 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1278 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1280 for (i = 0; i < 4; i++) {
1281 len = snprintf(buf, buf_size,
1282 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1284 buf_size = buf_size > len ? buf_size - len : 0;
1292 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1294 const char *codec_type;
1295 const char *codec_name;
1296 const char *profile = NULL;
1299 AVRational display_aspect_ratio;
1300 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1302 if (!buf || buf_size <= 0)
1304 codec_type = av_get_media_type_string(enc->codec_type);
1305 codec_name = avcodec_get_name(enc->codec_id);
1306 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1308 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1310 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1312 if (enc->codec && strcmp(enc->codec->name, codec_name))
1313 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1316 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1317 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1318 && av_log_get_level() >= AV_LOG_VERBOSE
1320 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1321 ", %d reference frame%s",
1322 enc->refs, enc->refs > 1 ? "s" : "");
1325 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1326 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1328 switch (enc->codec_type) {
1329 case AVMEDIA_TYPE_VIDEO:
1331 char detail[256] = "(";
1333 av_strlcat(buf, separator, buf_size);
1335 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1336 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1337 av_get_pix_fmt_name(enc->pix_fmt));
1338 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1339 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1340 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1341 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1342 av_strlcatf(detail, sizeof(detail), "%s, ",
1343 av_color_range_name(enc->color_range));
1345 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1346 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1347 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1348 if (enc->colorspace != (int)enc->color_primaries ||
1349 enc->colorspace != (int)enc->color_trc) {
1351 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1352 av_color_space_name(enc->colorspace),
1353 av_color_primaries_name(enc->color_primaries),
1354 av_color_transfer_name(enc->color_trc));
1356 av_strlcatf(detail, sizeof(detail), "%s, ",
1357 av_get_colorspace_name(enc->colorspace));
1360 if (enc->field_order != AV_FIELD_UNKNOWN) {
1361 const char *field_order = "progressive";
1362 if (enc->field_order == AV_FIELD_TT)
1363 field_order = "top first";
1364 else if (enc->field_order == AV_FIELD_BB)
1365 field_order = "bottom first";
1366 else if (enc->field_order == AV_FIELD_TB)
1367 field_order = "top coded first (swapped)";
1368 else if (enc->field_order == AV_FIELD_BT)
1369 field_order = "bottom coded first (swapped)";
1371 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1374 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1375 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1376 av_strlcatf(detail, sizeof(detail), "%s, ",
1377 av_chroma_location_name(enc->chroma_sample_location));
1379 if (strlen(detail) > 1) {
1380 detail[strlen(detail) - 2] = 0;
1381 av_strlcatf(buf, buf_size, "%s)", detail);
1386 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1388 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1390 enc->width, enc->height);
1392 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1393 (enc->width != enc->coded_width ||
1394 enc->height != enc->coded_height))
1395 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1396 " (%dx%d)", enc->coded_width, enc->coded_height);
1398 if (enc->sample_aspect_ratio.num) {
1399 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1400 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1401 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1403 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1404 " [SAR %d:%d DAR %d:%d]",
1405 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1406 display_aspect_ratio.num, display_aspect_ratio.den);
1408 if (av_log_get_level() >= AV_LOG_DEBUG) {
1409 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1410 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1412 enc->time_base.num / g, enc->time_base.den / g);
1416 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1417 ", q=%d-%d", enc->qmin, enc->qmax);
1419 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1420 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1421 ", Closed Captions");
1422 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1423 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1427 case AVMEDIA_TYPE_AUDIO:
1428 av_strlcat(buf, separator, buf_size);
1430 if (enc->sample_rate) {
1431 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1432 "%d Hz, ", enc->sample_rate);
1434 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1435 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1436 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1437 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1439 if ( enc->bits_per_raw_sample > 0
1440 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1441 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1442 " (%d bit)", enc->bits_per_raw_sample);
1443 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1444 if (enc->initial_padding)
1445 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1446 ", delay %d", enc->initial_padding);
1447 if (enc->trailing_padding)
1448 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1449 ", padding %d", enc->trailing_padding);
1452 case AVMEDIA_TYPE_DATA:
1453 if (av_log_get_level() >= AV_LOG_DEBUG) {
1454 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1456 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1458 enc->time_base.num / g, enc->time_base.den / g);
1461 case AVMEDIA_TYPE_SUBTITLE:
1463 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1464 ", %dx%d", enc->width, enc->height);
1470 if (enc->flags & AV_CODEC_FLAG_PASS1)
1471 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1473 if (enc->flags & AV_CODEC_FLAG_PASS2)
1474 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1477 bitrate = get_bit_rate(enc);
1479 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1480 ", %"PRId64" kb/s", bitrate / 1000);
1481 } else if (enc->rc_max_rate > 0) {
1482 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1483 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1487 const char *av_get_profile_name(const AVCodec *codec, int profile)
1490 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1493 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1494 if (p->profile == profile)
1500 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1502 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1505 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1508 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1509 if (p->profile == profile)
1515 unsigned avcodec_version(void)
1517 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1518 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1519 av_assert0(AV_CODEC_ID_SRT==94216);
1520 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1522 return LIBAVCODEC_VERSION_INT;
1525 const char *avcodec_configuration(void)
1527 return FFMPEG_CONFIGURATION;
1530 const char *avcodec_license(void)
1532 #define LICENSE_PREFIX "libavcodec license: "
1533 return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1536 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1539 case AV_CODEC_ID_8SVX_EXP:
1540 case AV_CODEC_ID_8SVX_FIB:
1541 case AV_CODEC_ID_ADPCM_ARGO:
1542 case AV_CODEC_ID_ADPCM_CT:
1543 case AV_CODEC_ID_ADPCM_IMA_ALP:
1544 case AV_CODEC_ID_ADPCM_IMA_AMV:
1545 case AV_CODEC_ID_ADPCM_IMA_APC:
1546 case AV_CODEC_ID_ADPCM_IMA_APM:
1547 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1548 case AV_CODEC_ID_ADPCM_IMA_OKI:
1549 case AV_CODEC_ID_ADPCM_IMA_WS:
1550 case AV_CODEC_ID_ADPCM_IMA_SSI:
1551 case AV_CODEC_ID_ADPCM_G722:
1552 case AV_CODEC_ID_ADPCM_YAMAHA:
1553 case AV_CODEC_ID_ADPCM_AICA:
1555 case AV_CODEC_ID_DSD_LSBF:
1556 case AV_CODEC_ID_DSD_MSBF:
1557 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1558 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1559 case AV_CODEC_ID_PCM_ALAW:
1560 case AV_CODEC_ID_PCM_MULAW:
1561 case AV_CODEC_ID_PCM_VIDC:
1562 case AV_CODEC_ID_PCM_S8:
1563 case AV_CODEC_ID_PCM_S8_PLANAR:
1564 case AV_CODEC_ID_PCM_SGA:
1565 case AV_CODEC_ID_PCM_U8:
1566 case AV_CODEC_ID_SDX2_DPCM:
1567 case AV_CODEC_ID_DERF_DPCM:
1569 case AV_CODEC_ID_PCM_S16BE:
1570 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1571 case AV_CODEC_ID_PCM_S16LE:
1572 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1573 case AV_CODEC_ID_PCM_U16BE:
1574 case AV_CODEC_ID_PCM_U16LE:
1576 case AV_CODEC_ID_PCM_S24DAUD:
1577 case AV_CODEC_ID_PCM_S24BE:
1578 case AV_CODEC_ID_PCM_S24LE:
1579 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1580 case AV_CODEC_ID_PCM_U24BE:
1581 case AV_CODEC_ID_PCM_U24LE:
1583 case AV_CODEC_ID_PCM_S32BE:
1584 case AV_CODEC_ID_PCM_S32LE:
1585 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1586 case AV_CODEC_ID_PCM_U32BE:
1587 case AV_CODEC_ID_PCM_U32LE:
1588 case AV_CODEC_ID_PCM_F32BE:
1589 case AV_CODEC_ID_PCM_F32LE:
1590 case AV_CODEC_ID_PCM_F24LE:
1591 case AV_CODEC_ID_PCM_F16LE:
1593 case AV_CODEC_ID_PCM_F64BE:
1594 case AV_CODEC_ID_PCM_F64LE:
1595 case AV_CODEC_ID_PCM_S64BE:
1596 case AV_CODEC_ID_PCM_S64LE:
1603 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1605 static const enum AVCodecID map[][2] = {
1606 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1607 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1608 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1609 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1610 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1611 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1612 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1613 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1614 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1615 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1616 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1618 if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1619 return AV_CODEC_ID_NONE;
1620 if (be < 0 || be > 1)
1622 return map[fmt][be];
1625 int av_get_bits_per_sample(enum AVCodecID codec_id)
1628 case AV_CODEC_ID_ADPCM_SBPRO_2:
1630 case AV_CODEC_ID_ADPCM_SBPRO_3:
1632 case AV_CODEC_ID_ADPCM_SBPRO_4:
1633 case AV_CODEC_ID_ADPCM_IMA_WAV:
1634 case AV_CODEC_ID_ADPCM_IMA_QT:
1635 case AV_CODEC_ID_ADPCM_SWF:
1636 case AV_CODEC_ID_ADPCM_MS:
1639 return av_get_exact_bits_per_sample(codec_id);
1643 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1644 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1645 uint8_t * extradata, int frame_size, int frame_bytes)
1647 int bps = av_get_exact_bits_per_sample(id);
1648 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1650 /* codecs with an exact constant bits per sample */
1651 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1652 return (frame_bytes * 8LL) / (bps * ch);
1653 bps = bits_per_coded_sample;
1655 /* codecs with a fixed packet duration */
1657 case AV_CODEC_ID_ADPCM_ADX: return 32;
1658 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1659 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1660 case AV_CODEC_ID_AMR_NB:
1661 case AV_CODEC_ID_EVRC:
1662 case AV_CODEC_ID_GSM:
1663 case AV_CODEC_ID_QCELP:
1664 case AV_CODEC_ID_RA_288: return 160;
1665 case AV_CODEC_ID_AMR_WB:
1666 case AV_CODEC_ID_GSM_MS: return 320;
1667 case AV_CODEC_ID_MP1: return 384;
1668 case AV_CODEC_ID_ATRAC1: return 512;
1669 case AV_CODEC_ID_ATRAC9:
1670 case AV_CODEC_ID_ATRAC3:
1671 if (framecount > INT_MAX/1024)
1673 return 1024 * framecount;
1674 case AV_CODEC_ID_ATRAC3P: return 2048;
1675 case AV_CODEC_ID_MP2:
1676 case AV_CODEC_ID_MUSEPACK7: return 1152;
1677 case AV_CODEC_ID_AC3: return 1536;
1681 /* calc from sample rate */
1682 if (id == AV_CODEC_ID_TTA)
1683 return 256 * sr / 245;
1684 else if (id == AV_CODEC_ID_DST)
1685 return 588 * sr / 44100;
1686 else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1687 if (sr / 22050 > 22)
1689 return (480 << (sr / 22050));
1692 if (id == AV_CODEC_ID_MP3)
1693 return sr <= 24000 ? 576 : 1152;
1697 /* calc from block_align */
1698 if (id == AV_CODEC_ID_SIPR) {
1700 case 20: return 160;
1701 case 19: return 144;
1702 case 29: return 288;
1703 case 37: return 480;
1705 } else if (id == AV_CODEC_ID_ILBC) {
1707 case 38: return 160;
1708 case 50: return 240;
1713 if (frame_bytes > 0) {
1714 /* calc from frame_bytes only */
1715 if (id == AV_CODEC_ID_TRUESPEECH)
1716 return 240 * (frame_bytes / 32);
1717 if (id == AV_CODEC_ID_NELLYMOSER)
1718 return 256 * (frame_bytes / 64);
1719 if (id == AV_CODEC_ID_RA_144)
1720 return 160 * (frame_bytes / 20);
1723 /* calc from frame_bytes and bits_per_coded_sample */
1724 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1725 return frame_bytes * 8 / bps;
1728 if (ch > 0 && ch < INT_MAX/16) {
1729 /* calc from frame_bytes and channels */
1731 case AV_CODEC_ID_FASTAUDIO:
1732 return frame_bytes / (40 * ch) * 256;
1733 case AV_CODEC_ID_ADPCM_IMA_MOFLEX:
1734 return (frame_bytes - 4 * ch) / (128 * ch) * 256;
1735 case AV_CODEC_ID_ADPCM_AFC:
1736 return frame_bytes / (9 * ch) * 16;
1737 case AV_CODEC_ID_ADPCM_PSX:
1738 case AV_CODEC_ID_ADPCM_DTK:
1739 frame_bytes /= 16 * ch;
1740 if (frame_bytes > INT_MAX / 28)
1742 return frame_bytes * 28;
1743 case AV_CODEC_ID_ADPCM_4XM:
1744 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1745 case AV_CODEC_ID_ADPCM_IMA_ISS:
1746 return (frame_bytes - 4 * ch) * 2 / ch;
1747 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1748 return (frame_bytes - 4) * 2 / ch;
1749 case AV_CODEC_ID_ADPCM_IMA_AMV:
1750 return (frame_bytes - 8) * 2;
1751 case AV_CODEC_ID_ADPCM_THP:
1752 case AV_CODEC_ID_ADPCM_THP_LE:
1754 return frame_bytes * 14 / (8 * ch);
1756 case AV_CODEC_ID_ADPCM_XA:
1757 return (frame_bytes / 128) * 224 / ch;
1758 case AV_CODEC_ID_INTERPLAY_DPCM:
1759 return (frame_bytes - 6 - ch) / ch;
1760 case AV_CODEC_ID_ROQ_DPCM:
1761 return (frame_bytes - 8) / ch;
1762 case AV_CODEC_ID_XAN_DPCM:
1763 return (frame_bytes - 2 * ch) / ch;
1764 case AV_CODEC_ID_MACE3:
1765 return 3 * frame_bytes / ch;
1766 case AV_CODEC_ID_MACE6:
1767 return 6 * frame_bytes / ch;
1768 case AV_CODEC_ID_PCM_LXF:
1769 return 2 * (frame_bytes / (5 * ch));
1770 case AV_CODEC_ID_IAC:
1771 case AV_CODEC_ID_IMC:
1772 return 4 * frame_bytes / ch;
1776 /* calc from frame_bytes, channels, and codec_tag */
1777 if (id == AV_CODEC_ID_SOL_DPCM) {
1779 return frame_bytes / ch;
1781 return frame_bytes * 2 / ch;
1786 /* calc from frame_bytes, channels, and block_align */
1787 int blocks = frame_bytes / ba;
1789 case AV_CODEC_ID_ADPCM_IMA_WAV:
1790 if (bps < 2 || bps > 5)
1792 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1793 case AV_CODEC_ID_ADPCM_IMA_DK3:
1794 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1795 case AV_CODEC_ID_ADPCM_IMA_DK4:
1796 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1797 case AV_CODEC_ID_ADPCM_IMA_RAD:
1798 return blocks * ((ba - 4 * ch) * 2 / ch);
1799 case AV_CODEC_ID_ADPCM_MS:
1800 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1801 case AV_CODEC_ID_ADPCM_MTAF:
1802 return blocks * (ba - 16) * 2 / ch;
1807 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1809 case AV_CODEC_ID_PCM_DVD:
1810 if(bps<4 || frame_bytes<3)
1812 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1813 case AV_CODEC_ID_PCM_BLURAY:
1814 if(bps<4 || frame_bytes<4)
1816 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1817 case AV_CODEC_ID_S302M:
1818 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1824 /* Fall back on using frame_size */
1825 if (frame_size > 1 && frame_bytes)
1828 //For WMA we currently have no other means to calculate duration thus we
1829 //do it here by assuming CBR, which is true for all known cases.
1830 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1831 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1832 return (frame_bytes * 8LL * sr) / bitrate;
1838 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1840 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1841 avctx->channels, avctx->block_align,
1842 avctx->codec_tag, avctx->bits_per_coded_sample,
1843 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1847 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1849 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1850 par->channels, par->block_align,
1851 par->codec_tag, par->bits_per_coded_sample,
1852 par->bit_rate, par->extradata, par->frame_size,
1857 int ff_thread_init(AVCodecContext *s)
1864 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1878 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1881 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1885 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1888 if (!codec->hw_configs || index < 0)
1890 for (i = 0; i <= index; i++)
1891 if (!codec->hw_configs[i])
1893 return &codec->hw_configs[index]->public;
1896 #if FF_API_USER_VISIBLE_AVHWACCEL
1897 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1902 void av_register_hwaccel(AVHWAccel *hwaccel)
1908 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1914 unsigned int avpriv_toupper4(unsigned int x)
1916 return av_toupper(x & 0xFF) +
1917 (av_toupper((x >> 8) & 0xFF) << 8) +
1918 (av_toupper((x >> 16) & 0xFF) << 16) +
1919 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1922 int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
1926 dst->owner[0] = src->owner[0];
1927 dst->owner[1] = src->owner[1];
1929 ret = av_frame_ref(dst->f, src->f);
1933 av_assert0(!dst->progress);
1935 if (src->progress &&
1936 !(dst->progress = av_buffer_ref(src->progress))) {
1937 ff_thread_release_buffer(dst->owner[0], dst);
1938 return AVERROR(ENOMEM);
1946 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1948 return ff_get_format(avctx, fmt);
1951 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1953 f->owner[0] = f->owner[1] = avctx;
1954 return ff_get_buffer(avctx, f->f, flags);
1957 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1960 av_frame_unref(f->f);
1963 void ff_thread_finish_setup(AVCodecContext *avctx)
1967 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1971 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1975 int ff_thread_can_start_frame(AVCodecContext *avctx)
1980 int ff_alloc_entries(AVCodecContext *avctx, int count)
1985 void ff_reset_entries(AVCodecContext *avctx)
1989 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1993 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1999 int avcodec_is_open(AVCodecContext *s)
2001 return !!s->internal;
2004 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
2006 uint32_t *av_restrict state)
2010 av_assert0(p <= end);
2014 for (i = 0; i < 3; i++) {
2015 uint32_t tmp = *state << 8;
2016 *state = tmp + *(p++);
2017 if (tmp == 0x100 || p == end)
2022 if (p[-1] > 1 ) p += 3;
2023 else if (p[-2] ) p += 2;
2024 else if (p[-3]|(p[-1]-1)) p++;
2031 p = FFMIN(p, end) - 4;
2032 *state = AV_RB32(p);
2037 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
2039 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2044 *size = sizeof(*props);
2046 props->vbv_delay = UINT64_MAX;
2051 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2053 AVPacketSideData *tmp;
2054 AVCPBProperties *props;
2058 for (i = 0; i < avctx->nb_coded_side_data; i++)
2059 if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
2060 return (AVCPBProperties *)avctx->coded_side_data[i].data;
2062 props = av_cpb_properties_alloc(&size);
2066 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2072 avctx->coded_side_data = tmp;
2073 avctx->nb_coded_side_data++;
2075 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2076 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2077 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2082 static void codec_parameters_reset(AVCodecParameters *par)
2084 av_freep(&par->extradata);
2086 memset(par, 0, sizeof(*par));
2088 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2089 par->codec_id = AV_CODEC_ID_NONE;
2091 par->field_order = AV_FIELD_UNKNOWN;
2092 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2093 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2094 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2095 par->color_space = AVCOL_SPC_UNSPECIFIED;
2096 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2097 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2098 par->profile = FF_PROFILE_UNKNOWN;
2099 par->level = FF_LEVEL_UNKNOWN;
2102 AVCodecParameters *avcodec_parameters_alloc(void)
2104 AVCodecParameters *par = av_mallocz(sizeof(*par));
2108 codec_parameters_reset(par);
2112 void avcodec_parameters_free(AVCodecParameters **ppar)
2114 AVCodecParameters *par = *ppar;
2118 codec_parameters_reset(par);
2123 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2125 codec_parameters_reset(dst);
2126 memcpy(dst, src, sizeof(*dst));
2128 dst->extradata = NULL;
2129 dst->extradata_size = 0;
2130 if (src->extradata) {
2131 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2132 if (!dst->extradata)
2133 return AVERROR(ENOMEM);
2134 memcpy(dst->extradata, src->extradata, src->extradata_size);
2135 dst->extradata_size = src->extradata_size;
2141 int avcodec_parameters_from_context(AVCodecParameters *par,
2142 const AVCodecContext *codec)
2144 codec_parameters_reset(par);
2146 par->codec_type = codec->codec_type;
2147 par->codec_id = codec->codec_id;
2148 par->codec_tag = codec->codec_tag;
2150 par->bit_rate = codec->bit_rate;
2151 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2152 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2153 par->profile = codec->profile;
2154 par->level = codec->level;
2156 switch (par->codec_type) {
2157 case AVMEDIA_TYPE_VIDEO:
2158 par->format = codec->pix_fmt;
2159 par->width = codec->width;
2160 par->height = codec->height;
2161 par->field_order = codec->field_order;
2162 par->color_range = codec->color_range;
2163 par->color_primaries = codec->color_primaries;
2164 par->color_trc = codec->color_trc;
2165 par->color_space = codec->colorspace;
2166 par->chroma_location = codec->chroma_sample_location;
2167 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2168 par->video_delay = codec->has_b_frames;
2170 case AVMEDIA_TYPE_AUDIO:
2171 par->format = codec->sample_fmt;
2172 par->channel_layout = codec->channel_layout;
2173 par->channels = codec->channels;
2174 par->sample_rate = codec->sample_rate;
2175 par->block_align = codec->block_align;
2176 par->frame_size = codec->frame_size;
2177 par->initial_padding = codec->initial_padding;
2178 par->trailing_padding = codec->trailing_padding;
2179 par->seek_preroll = codec->seek_preroll;
2181 case AVMEDIA_TYPE_SUBTITLE:
2182 par->width = codec->width;
2183 par->height = codec->height;
2187 if (codec->extradata) {
2188 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2189 if (!par->extradata)
2190 return AVERROR(ENOMEM);
2191 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2192 par->extradata_size = codec->extradata_size;
2198 int avcodec_parameters_to_context(AVCodecContext *codec,
2199 const AVCodecParameters *par)
2201 codec->codec_type = par->codec_type;
2202 codec->codec_id = par->codec_id;
2203 codec->codec_tag = par->codec_tag;
2205 codec->bit_rate = par->bit_rate;
2206 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2207 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2208 codec->profile = par->profile;
2209 codec->level = par->level;
2211 switch (par->codec_type) {
2212 case AVMEDIA_TYPE_VIDEO:
2213 codec->pix_fmt = par->format;
2214 codec->width = par->width;
2215 codec->height = par->height;
2216 codec->field_order = par->field_order;
2217 codec->color_range = par->color_range;
2218 codec->color_primaries = par->color_primaries;
2219 codec->color_trc = par->color_trc;
2220 codec->colorspace = par->color_space;
2221 codec->chroma_sample_location = par->chroma_location;
2222 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2223 codec->has_b_frames = par->video_delay;
2225 case AVMEDIA_TYPE_AUDIO:
2226 codec->sample_fmt = par->format;
2227 codec->channel_layout = par->channel_layout;
2228 codec->channels = par->channels;
2229 codec->sample_rate = par->sample_rate;
2230 codec->block_align = par->block_align;
2231 codec->frame_size = par->frame_size;
2233 codec->initial_padding = par->initial_padding;
2234 codec->trailing_padding = par->trailing_padding;
2235 codec->seek_preroll = par->seek_preroll;
2237 case AVMEDIA_TYPE_SUBTITLE:
2238 codec->width = par->width;
2239 codec->height = par->height;
2243 if (par->extradata) {
2244 av_freep(&codec->extradata);
2245 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2246 if (!codec->extradata)
2247 return AVERROR(ENOMEM);
2248 memcpy(codec->extradata, par->extradata, par->extradata_size);
2249 codec->extradata_size = par->extradata_size;
2255 static unsigned bcd2uint(uint8_t bcd)
2257 unsigned low = bcd & 0xf;
2258 unsigned high = bcd >> 4;
2259 if (low > 9 || high > 9)
2261 return low + 10*high;
2264 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
2265 void **data, size_t *sei_size)
2267 AVFrameSideData *sd = NULL;
2274 sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE);
2280 tc = (uint32_t*)sd->data;
2283 *sei_size = sizeof(uint32_t) * 4;
2284 *data = av_mallocz(*sei_size + prefix_len);
2286 return AVERROR(ENOMEM);
2287 sei_data = (uint8_t*)*data + prefix_len;
2289 init_put_bits(&pb, sei_data, *sei_size);
2290 put_bits(&pb, 2, m); // num_clock_ts
2292 for (int j = 1; j <= m; j++) {
2293 uint32_t tcsmpte = tc[j];
2294 unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2295 unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2296 unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2297 unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2298 unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2300 /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
2301 if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
2304 if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
2305 pc = !!(tcsmpte & 1 << 7);
2307 pc = !!(tcsmpte & 1 << 23);
2308 ff = (ff + pc) & 0x7f;
2311 put_bits(&pb, 1, 1); // clock_timestamp_flag
2312 put_bits(&pb, 1, 1); // units_field_based_flag
2313 put_bits(&pb, 5, 0); // counting_type
2314 put_bits(&pb, 1, 1); // full_timestamp_flag
2315 put_bits(&pb, 1, 0); // discontinuity_flag
2316 put_bits(&pb, 1, drop);
2317 put_bits(&pb, 9, ff);
2318 put_bits(&pb, 6, ss);
2319 put_bits(&pb, 6, mm);
2320 put_bits(&pb, 5, hh);
2321 put_bits(&pb, 5, 0);
2323 flush_put_bits(&pb);
2328 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2330 AVRational framerate = avctx->framerate;
2331 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2334 if (!(framerate.num && framerate.den))
2335 framerate = av_inv_q(avctx->time_base);
2336 if (!(framerate.num && framerate.den))
2339 if (!bits_per_coded_sample) {
2340 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2341 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2343 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2344 framerate.num / framerate.den;
2349 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2350 const int * array_valid_values, int default_value)
2355 ref_val = array_valid_values[i];
2356 if (ref_val == INT_MAX)
2362 /* val is not a valid value */
2363 av_log(ctx, AV_LOG_DEBUG,
2364 "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2365 return default_value;