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"
54 #include "bytestream.h"
58 #include <stdatomic.h>
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
68 static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
73 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
78 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
85 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
90 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
94 int av_codec_is_encoder(const AVCodec *codec)
96 return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
99 int av_codec_is_decoder(const AVCodec *codec)
101 return codec && (codec->decode || codec->receive_frame);
104 int ff_set_dimensions(AVCodecContext *s, int width, int height)
106 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
111 s->coded_width = width;
112 s->coded_height = height;
113 s->width = AV_CEIL_RSHIFT(width, s->lowres);
114 s->height = AV_CEIL_RSHIFT(height, s->lowres);
119 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
121 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
124 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
126 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
129 avctx->sample_aspect_ratio = sar;
134 int ff_side_data_update_matrix_encoding(AVFrame *frame,
135 enum AVMatrixEncoding matrix_encoding)
137 AVFrameSideData *side_data;
138 enum AVMatrixEncoding *data;
140 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
142 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
143 sizeof(enum AVMatrixEncoding));
146 return AVERROR(ENOMEM);
148 data = (enum AVMatrixEncoding*)side_data->data;
149 *data = matrix_encoding;
154 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
155 int linesize_align[AV_NUM_DATA_POINTERS])
160 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
163 w_align = 1 << desc->log2_chroma_w;
164 h_align = 1 << desc->log2_chroma_h;
167 switch (s->pix_fmt) {
168 case AV_PIX_FMT_YUV420P:
169 case AV_PIX_FMT_YUYV422:
170 case AV_PIX_FMT_YVYU422:
171 case AV_PIX_FMT_UYVY422:
172 case AV_PIX_FMT_YUV422P:
173 case AV_PIX_FMT_YUV440P:
174 case AV_PIX_FMT_YUV444P:
175 case AV_PIX_FMT_GBRP:
176 case AV_PIX_FMT_GBRAP:
177 case AV_PIX_FMT_GRAY8:
178 case AV_PIX_FMT_GRAY16BE:
179 case AV_PIX_FMT_GRAY16LE:
180 case AV_PIX_FMT_YUVJ420P:
181 case AV_PIX_FMT_YUVJ422P:
182 case AV_PIX_FMT_YUVJ440P:
183 case AV_PIX_FMT_YUVJ444P:
184 case AV_PIX_FMT_YUVA420P:
185 case AV_PIX_FMT_YUVA422P:
186 case AV_PIX_FMT_YUVA444P:
187 case AV_PIX_FMT_YUV420P9LE:
188 case AV_PIX_FMT_YUV420P9BE:
189 case AV_PIX_FMT_YUV420P10LE:
190 case AV_PIX_FMT_YUV420P10BE:
191 case AV_PIX_FMT_YUV420P12LE:
192 case AV_PIX_FMT_YUV420P12BE:
193 case AV_PIX_FMT_YUV420P14LE:
194 case AV_PIX_FMT_YUV420P14BE:
195 case AV_PIX_FMT_YUV420P16LE:
196 case AV_PIX_FMT_YUV420P16BE:
197 case AV_PIX_FMT_YUVA420P9LE:
198 case AV_PIX_FMT_YUVA420P9BE:
199 case AV_PIX_FMT_YUVA420P10LE:
200 case AV_PIX_FMT_YUVA420P10BE:
201 case AV_PIX_FMT_YUVA420P16LE:
202 case AV_PIX_FMT_YUVA420P16BE:
203 case AV_PIX_FMT_YUV422P9LE:
204 case AV_PIX_FMT_YUV422P9BE:
205 case AV_PIX_FMT_YUV422P10LE:
206 case AV_PIX_FMT_YUV422P10BE:
207 case AV_PIX_FMT_YUV422P12LE:
208 case AV_PIX_FMT_YUV422P12BE:
209 case AV_PIX_FMT_YUV422P14LE:
210 case AV_PIX_FMT_YUV422P14BE:
211 case AV_PIX_FMT_YUV422P16LE:
212 case AV_PIX_FMT_YUV422P16BE:
213 case AV_PIX_FMT_YUVA422P9LE:
214 case AV_PIX_FMT_YUVA422P9BE:
215 case AV_PIX_FMT_YUVA422P10LE:
216 case AV_PIX_FMT_YUVA422P10BE:
217 case AV_PIX_FMT_YUVA422P12LE:
218 case AV_PIX_FMT_YUVA422P12BE:
219 case AV_PIX_FMT_YUVA422P16LE:
220 case AV_PIX_FMT_YUVA422P16BE:
221 case AV_PIX_FMT_YUV440P10LE:
222 case AV_PIX_FMT_YUV440P10BE:
223 case AV_PIX_FMT_YUV440P12LE:
224 case AV_PIX_FMT_YUV440P12BE:
225 case AV_PIX_FMT_YUV444P9LE:
226 case AV_PIX_FMT_YUV444P9BE:
227 case AV_PIX_FMT_YUV444P10LE:
228 case AV_PIX_FMT_YUV444P10BE:
229 case AV_PIX_FMT_YUV444P12LE:
230 case AV_PIX_FMT_YUV444P12BE:
231 case AV_PIX_FMT_YUV444P14LE:
232 case AV_PIX_FMT_YUV444P14BE:
233 case AV_PIX_FMT_YUV444P16LE:
234 case AV_PIX_FMT_YUV444P16BE:
235 case AV_PIX_FMT_YUVA444P9LE:
236 case AV_PIX_FMT_YUVA444P9BE:
237 case AV_PIX_FMT_YUVA444P10LE:
238 case AV_PIX_FMT_YUVA444P10BE:
239 case AV_PIX_FMT_YUVA444P12LE:
240 case AV_PIX_FMT_YUVA444P12BE:
241 case AV_PIX_FMT_YUVA444P16LE:
242 case AV_PIX_FMT_YUVA444P16BE:
243 case AV_PIX_FMT_GBRP9LE:
244 case AV_PIX_FMT_GBRP9BE:
245 case AV_PIX_FMT_GBRP10LE:
246 case AV_PIX_FMT_GBRP10BE:
247 case AV_PIX_FMT_GBRP12LE:
248 case AV_PIX_FMT_GBRP12BE:
249 case AV_PIX_FMT_GBRP14LE:
250 case AV_PIX_FMT_GBRP14BE:
251 case AV_PIX_FMT_GBRP16LE:
252 case AV_PIX_FMT_GBRP16BE:
253 case AV_PIX_FMT_GBRAP12LE:
254 case AV_PIX_FMT_GBRAP12BE:
255 case AV_PIX_FMT_GBRAP16LE:
256 case AV_PIX_FMT_GBRAP16BE:
257 w_align = 16; //FIXME assume 16 pixel per macroblock
258 h_align = 16 * 2; // interlaced needs 2 macroblocks height
260 case AV_PIX_FMT_YUV411P:
261 case AV_PIX_FMT_YUVJ411P:
262 case AV_PIX_FMT_UYYVYY411:
266 case AV_PIX_FMT_YUV410P:
267 if (s->codec_id == AV_CODEC_ID_SVQ1) {
272 case AV_PIX_FMT_RGB555:
273 if (s->codec_id == AV_CODEC_ID_RPZA) {
277 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
282 case AV_PIX_FMT_PAL8:
283 case AV_PIX_FMT_BGR8:
284 case AV_PIX_FMT_RGB8:
285 if (s->codec_id == AV_CODEC_ID_SMC ||
286 s->codec_id == AV_CODEC_ID_CINEPAK) {
290 if (s->codec_id == AV_CODEC_ID_JV ||
291 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
296 case AV_PIX_FMT_BGR24:
297 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
298 (s->codec_id == AV_CODEC_ID_ZLIB)) {
303 case AV_PIX_FMT_RGB24:
304 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
313 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
314 w_align = FFMAX(w_align, 8);
317 *width = FFALIGN(*width, w_align);
318 *height = FFALIGN(*height, h_align);
319 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
320 s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
321 s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
323 // some of the optimized chroma MC reads one line too much
324 // which is also done in mpeg decoders with lowres > 0
327 // H.264 uses edge emulation for out of frame motion vectors, for this
328 // it requires a temporary area large enough to hold a 21x21 block,
329 // increasing witdth ensure that the temporary area is large enough,
330 // the next rounded up width is 32
331 *width = FFMAX(*width, 32);
334 for (i = 0; i < 4; i++)
335 linesize_align[i] = STRIDE_ALIGN;
338 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
340 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
341 int chroma_shift = desc->log2_chroma_w;
342 int linesize_align[AV_NUM_DATA_POINTERS];
345 avcodec_align_dimensions2(s, width, height, linesize_align);
346 align = FFMAX(linesize_align[0], linesize_align[3]);
347 linesize_align[1] <<= chroma_shift;
348 linesize_align[2] <<= chroma_shift;
349 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
350 *width = FFALIGN(*width, align);
353 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
355 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
356 return AVERROR(EINVAL);
359 *xpos = (pos&1) * 128;
360 *ypos = ((pos>>1)^(pos<4)) * 128;
365 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
369 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
370 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
373 return AVCHROMA_LOC_UNSPECIFIED;
376 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
377 enum AVSampleFormat sample_fmt, const uint8_t *buf,
378 int buf_size, int align)
380 int ch, planar, needed_size, ret = 0;
382 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
383 frame->nb_samples, sample_fmt,
385 if (buf_size < needed_size)
386 return AVERROR(EINVAL);
388 planar = av_sample_fmt_is_planar(sample_fmt);
389 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
390 if (!(frame->extended_data = av_mallocz_array(nb_channels,
391 sizeof(*frame->extended_data))))
392 return AVERROR(ENOMEM);
394 frame->extended_data = frame->data;
397 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
398 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
399 sample_fmt, align)) < 0) {
400 if (frame->extended_data != frame->data)
401 av_freep(&frame->extended_data);
404 if (frame->extended_data != frame->data) {
405 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
406 frame->data[ch] = frame->extended_data[ch];
412 void ff_color_frame(AVFrame *frame, const int c[4])
414 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
417 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
419 for (p = 0; p<desc->nb_components; p++) {
420 uint8_t *dst = frame->data[p];
421 int is_chroma = p == 1 || p == 2;
422 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
423 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
424 if (desc->comp[0].depth >= 9) {
425 ((uint16_t*)dst)[0] = c[p];
426 av_memcpy_backptr(dst + 2, 2, bytes - 2);
427 dst += frame->linesize[p];
428 for (y = 1; y < height; y++) {
429 memcpy(dst, frame->data[p], 2*bytes);
430 dst += frame->linesize[p];
433 for (y = 0; y < height; y++) {
434 memset(dst, c[p], bytes);
435 dst += frame->linesize[p];
441 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
445 for (i = 0; i < count; i++) {
446 int r = func(c, (char *)arg + i * size);
454 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
458 for (i = 0; i < count; i++) {
459 int r = func(c, arg, i, 0);
467 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
470 while (tags->pix_fmt >= 0) {
471 if (tags->fourcc == fourcc)
472 return tags->pix_fmt;
475 return AV_PIX_FMT_NONE;
478 #if FF_API_CODEC_GET_SET
479 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
480 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
481 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
483 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
485 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
487 return codec->properties;
490 int av_codec_get_max_lowres(const AVCodec *codec)
492 return codec->max_lowres;
496 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
497 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
500 static int64_t get_bit_rate(AVCodecContext *ctx)
505 switch (ctx->codec_type) {
506 case AVMEDIA_TYPE_VIDEO:
507 case AVMEDIA_TYPE_DATA:
508 case AVMEDIA_TYPE_SUBTITLE:
509 case AVMEDIA_TYPE_ATTACHMENT:
510 bit_rate = ctx->bit_rate;
512 case AVMEDIA_TYPE_AUDIO:
513 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
514 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
524 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
526 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
527 ff_mutex_lock(&codec_mutex);
530 static void ff_unlock_avcodec(const AVCodec *codec)
532 if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
533 ff_mutex_unlock(&codec_mutex);
536 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
540 ff_unlock_avcodec(codec);
542 ret = avcodec_open2(avctx, codec, options);
544 ff_lock_avcodec(avctx, codec);
548 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
551 int codec_init_ok = 0;
552 AVDictionary *tmp = NULL;
553 const AVPixFmtDescriptor *pixdesc;
554 AVCodecInternal *avci;
556 if (avcodec_is_open(avctx))
559 if (!codec && !avctx->codec) {
560 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
561 return AVERROR(EINVAL);
563 if (codec && avctx->codec && codec != avctx->codec) {
564 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
565 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
566 return AVERROR(EINVAL);
569 codec = avctx->codec;
571 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
572 return AVERROR(EINVAL);
575 av_dict_copy(&tmp, *options, 0);
577 ff_lock_avcodec(avctx, codec);
579 avci = av_mallocz(sizeof(*avci));
581 ret = AVERROR(ENOMEM);
584 avctx->internal = avci;
586 avci->to_free = av_frame_alloc();
587 if (!avci->to_free) {
588 ret = AVERROR(ENOMEM);
592 avci->compat_decode_frame = av_frame_alloc();
593 if (!avci->compat_decode_frame) {
594 ret = AVERROR(ENOMEM);
598 avci->buffer_frame = av_frame_alloc();
599 if (!avci->buffer_frame) {
600 ret = AVERROR(ENOMEM);
604 avci->buffer_pkt = av_packet_alloc();
605 if (!avci->buffer_pkt) {
606 ret = AVERROR(ENOMEM);
610 avci->ds.in_pkt = av_packet_alloc();
611 if (!avci->ds.in_pkt) {
612 ret = AVERROR(ENOMEM);
616 avci->last_pkt_props = av_packet_alloc();
617 if (!avci->last_pkt_props) {
618 ret = AVERROR(ENOMEM);
622 avci->skip_samples_multiplier = 1;
624 if (codec->priv_data_size > 0) {
625 if (!avctx->priv_data) {
626 avctx->priv_data = av_mallocz(codec->priv_data_size);
627 if (!avctx->priv_data) {
628 ret = AVERROR(ENOMEM);
631 if (codec->priv_class) {
632 *(const AVClass **)avctx->priv_data = codec->priv_class;
633 av_opt_set_defaults(avctx->priv_data);
636 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
639 avctx->priv_data = NULL;
641 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
644 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
645 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
646 ret = AVERROR(EINVAL);
650 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
651 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
652 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
653 if (avctx->coded_width && avctx->coded_height)
654 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
655 else if (avctx->width && avctx->height)
656 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
661 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
662 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
663 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
664 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
665 ff_set_dimensions(avctx, 0, 0);
668 if (avctx->width > 0 && avctx->height > 0) {
669 if (av_image_check_sar(avctx->width, avctx->height,
670 avctx->sample_aspect_ratio) < 0) {
671 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
672 avctx->sample_aspect_ratio.num,
673 avctx->sample_aspect_ratio.den);
674 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
678 /* if the decoder init function was already called previously,
679 * free the already allocated subtitle_header before overwriting it */
680 if (av_codec_is_decoder(codec))
681 av_freep(&avctx->subtitle_header);
683 if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
684 av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
685 ret = AVERROR(EINVAL);
688 if (avctx->sample_rate < 0) {
689 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
690 ret = AVERROR(EINVAL);
693 if (avctx->block_align < 0) {
694 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
695 ret = AVERROR(EINVAL);
699 avctx->codec = codec;
700 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
701 avctx->codec_id == AV_CODEC_ID_NONE) {
702 avctx->codec_type = codec->type;
703 avctx->codec_id = codec->id;
705 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
706 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
707 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
708 ret = AVERROR(EINVAL);
711 avctx->frame_number = 0;
712 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
714 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
715 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
716 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
718 av_log(avctx, AV_LOG_ERROR,
719 "The %s '%s' is experimental but experimental codecs are not enabled, "
720 "add '-strict %d' if you want to use it.\n",
721 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
722 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
723 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
724 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
725 codec_string, codec2->name);
726 ret = AVERROR_EXPERIMENTAL;
730 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
731 (!avctx->time_base.num || !avctx->time_base.den)) {
732 avctx->time_base.num = 1;
733 avctx->time_base.den = avctx->sample_rate;
737 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
739 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
740 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
741 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
742 ff_lock_avcodec(avctx, codec);
747 if (av_codec_is_decoder(avctx->codec)) {
748 ret = ff_decode_bsfs_init(avctx);
754 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
755 ret = ff_thread_init(avctx);
760 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
761 avctx->thread_count = 1;
763 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
764 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
765 avctx->codec->max_lowres);
766 avctx->lowres = avctx->codec->max_lowres;
769 if (av_codec_is_encoder(avctx->codec)) {
771 #if FF_API_CODED_FRAME
772 FF_DISABLE_DEPRECATION_WARNINGS
773 avctx->coded_frame = av_frame_alloc();
774 if (!avctx->coded_frame) {
775 ret = AVERROR(ENOMEM);
778 FF_ENABLE_DEPRECATION_WARNINGS
781 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
782 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
783 ret = AVERROR(EINVAL);
787 if (avctx->codec->sample_fmts) {
788 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
789 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
791 if (avctx->channels == 1 &&
792 av_get_planar_sample_fmt(avctx->sample_fmt) ==
793 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
794 avctx->sample_fmt = avctx->codec->sample_fmts[i];
798 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
800 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
801 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
802 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
803 ret = AVERROR(EINVAL);
807 if (avctx->codec->pix_fmts) {
808 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
809 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
811 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
812 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
813 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
815 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
816 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
817 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
818 ret = AVERROR(EINVAL);
821 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
822 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
823 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
824 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
825 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
826 avctx->color_range = AVCOL_RANGE_JPEG;
828 if (avctx->codec->supported_samplerates) {
829 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
830 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
832 if (avctx->codec->supported_samplerates[i] == 0) {
833 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
835 ret = AVERROR(EINVAL);
839 if (avctx->sample_rate < 0) {
840 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
842 ret = AVERROR(EINVAL);
845 if (avctx->codec->channel_layouts) {
846 if (!avctx->channel_layout) {
847 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
849 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
850 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
852 if (avctx->codec->channel_layouts[i] == 0) {
854 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
855 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
856 ret = AVERROR(EINVAL);
861 if (avctx->channel_layout && avctx->channels) {
862 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
863 if (channels != avctx->channels) {
865 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
866 av_log(avctx, AV_LOG_ERROR,
867 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
868 buf, channels, avctx->channels);
869 ret = AVERROR(EINVAL);
872 } else if (avctx->channel_layout) {
873 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
875 if (avctx->channels < 0) {
876 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
878 ret = AVERROR(EINVAL);
881 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
882 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
883 if ( avctx->bits_per_raw_sample < 0
884 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
885 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
886 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
887 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
889 if (avctx->width <= 0 || avctx->height <= 0) {
890 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
891 ret = AVERROR(EINVAL);
895 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
896 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
897 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
900 if (!avctx->rc_initial_buffer_occupancy)
901 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
903 if (avctx->ticks_per_frame && avctx->time_base.num &&
904 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
905 av_log(avctx, AV_LOG_ERROR,
906 "ticks_per_frame %d too large for the timebase %d/%d.",
907 avctx->ticks_per_frame,
908 avctx->time_base.num,
909 avctx->time_base.den);
913 if (avctx->hw_frames_ctx) {
914 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
915 if (frames_ctx->format != avctx->pix_fmt) {
916 av_log(avctx, AV_LOG_ERROR,
917 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
918 ret = AVERROR(EINVAL);
921 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
922 avctx->sw_pix_fmt != frames_ctx->sw_format) {
923 av_log(avctx, AV_LOG_ERROR,
924 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
925 "and AVHWFramesContext.sw_format (%s)\n",
926 av_get_pix_fmt_name(avctx->sw_pix_fmt),
927 av_get_pix_fmt_name(frames_ctx->sw_format));
928 ret = AVERROR(EINVAL);
931 avctx->sw_pix_fmt = frames_ctx->sw_format;
935 avctx->pts_correction_num_faulty_pts =
936 avctx->pts_correction_num_faulty_dts = 0;
937 avctx->pts_correction_last_pts =
938 avctx->pts_correction_last_dts = INT64_MIN;
940 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
941 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
942 av_log(avctx, AV_LOG_WARNING,
943 "gray decoding requested but not enabled at configuration time\n");
944 if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
945 avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
948 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
949 || avci->frame_thread_encoder)) {
950 ret = avctx->codec->init(avctx);
959 if (av_codec_is_decoder(avctx->codec)) {
960 if (!avctx->bit_rate)
961 avctx->bit_rate = get_bit_rate(avctx);
962 /* validate channel layout from the decoder */
963 if (avctx->channel_layout) {
964 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
965 if (!avctx->channels)
966 avctx->channels = channels;
967 else if (channels != avctx->channels) {
969 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
970 av_log(avctx, AV_LOG_WARNING,
971 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
972 "ignoring specified channel layout\n",
973 buf, channels, avctx->channels);
974 avctx->channel_layout = 0;
977 if (avctx->channels && avctx->channels < 0 ||
978 avctx->channels > FF_SANE_NB_CHANNELS) {
979 ret = AVERROR(EINVAL);
982 if (avctx->bits_per_coded_sample < 0) {
983 ret = AVERROR(EINVAL);
986 if (avctx->sub_charenc) {
987 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
988 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
989 "supported with subtitles codecs\n");
990 ret = AVERROR(EINVAL);
992 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
993 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
994 "subtitles character encoding will be ignored\n",
995 avctx->codec_descriptor->name);
996 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
998 /* input character encoding is set for a text based subtitle
999 * codec at this point */
1000 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1001 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1003 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1005 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1006 if (cd == (iconv_t)-1) {
1007 ret = AVERROR(errno);
1008 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1009 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1014 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1015 "conversion needs a libavcodec built with iconv support "
1016 "for this codec\n");
1017 ret = AVERROR(ENOSYS);
1024 #if FF_API_AVCTX_TIMEBASE
1025 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1026 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1029 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1030 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1034 ff_unlock_avcodec(codec);
1036 av_dict_free(options);
1042 if (avctx->codec && avctx->codec->close &&
1044 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
1045 avctx->codec->close(avctx);
1047 if (HAVE_THREADS && avci->thread_ctx)
1048 ff_thread_free(avctx);
1050 if (codec->priv_class && codec->priv_data_size)
1051 av_opt_free(avctx->priv_data);
1054 #if FF_API_CODED_FRAME
1055 FF_DISABLE_DEPRECATION_WARNINGS
1056 av_frame_free(&avctx->coded_frame);
1057 FF_ENABLE_DEPRECATION_WARNINGS
1061 av_freep(&avctx->priv_data);
1062 av_freep(&avctx->subtitle_header);
1064 av_frame_free(&avci->to_free);
1065 av_frame_free(&avci->compat_decode_frame);
1066 av_frame_free(&avci->buffer_frame);
1067 av_packet_free(&avci->buffer_pkt);
1068 av_packet_free(&avci->last_pkt_props);
1070 av_packet_free(&avci->ds.in_pkt);
1071 ff_decode_bsfs_uninit(avctx);
1073 av_buffer_unref(&avci->pool);
1076 avctx->internal = NULL;
1077 avctx->codec = NULL;
1081 void avsubtitle_free(AVSubtitle *sub)
1085 for (i = 0; i < sub->num_rects; i++) {
1086 av_freep(&sub->rects[i]->data[0]);
1087 av_freep(&sub->rects[i]->data[1]);
1088 av_freep(&sub->rects[i]->data[2]);
1089 av_freep(&sub->rects[i]->data[3]);
1090 av_freep(&sub->rects[i]->text);
1091 av_freep(&sub->rects[i]->ass);
1092 av_freep(&sub->rects[i]);
1095 av_freep(&sub->rects);
1097 memset(sub, 0, sizeof(*sub));
1100 av_cold int avcodec_close(AVCodecContext *avctx)
1107 if (avcodec_is_open(avctx)) {
1108 if (CONFIG_FRAME_THREAD_ENCODER &&
1109 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1110 ff_frame_thread_encoder_free(avctx);
1112 if (HAVE_THREADS && avctx->internal->thread_ctx)
1113 ff_thread_free(avctx);
1114 if (avctx->codec && avctx->codec->close)
1115 avctx->codec->close(avctx);
1116 avctx->internal->byte_buffer_size = 0;
1117 av_freep(&avctx->internal->byte_buffer);
1118 av_frame_free(&avctx->internal->to_free);
1119 av_frame_free(&avctx->internal->compat_decode_frame);
1120 av_frame_free(&avctx->internal->buffer_frame);
1121 av_packet_free(&avctx->internal->buffer_pkt);
1122 av_packet_free(&avctx->internal->last_pkt_props);
1124 av_packet_free(&avctx->internal->ds.in_pkt);
1126 av_buffer_unref(&avctx->internal->pool);
1128 if (avctx->hwaccel && avctx->hwaccel->uninit)
1129 avctx->hwaccel->uninit(avctx);
1130 av_freep(&avctx->internal->hwaccel_priv_data);
1132 ff_decode_bsfs_uninit(avctx);
1134 av_freep(&avctx->internal);
1137 for (i = 0; i < avctx->nb_coded_side_data; i++)
1138 av_freep(&avctx->coded_side_data[i].data);
1139 av_freep(&avctx->coded_side_data);
1140 avctx->nb_coded_side_data = 0;
1142 av_buffer_unref(&avctx->hw_frames_ctx);
1143 av_buffer_unref(&avctx->hw_device_ctx);
1145 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1146 av_opt_free(avctx->priv_data);
1148 av_freep(&avctx->priv_data);
1149 if (av_codec_is_encoder(avctx->codec)) {
1150 av_freep(&avctx->extradata);
1151 #if FF_API_CODED_FRAME
1152 FF_DISABLE_DEPRECATION_WARNINGS
1153 av_frame_free(&avctx->coded_frame);
1154 FF_ENABLE_DEPRECATION_WARNINGS
1157 avctx->codec = NULL;
1158 avctx->active_thread_type = 0;
1163 const char *avcodec_get_name(enum AVCodecID id)
1165 const AVCodecDescriptor *cd;
1168 if (id == AV_CODEC_ID_NONE)
1170 cd = avcodec_descriptor_get(id);
1173 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1174 codec = avcodec_find_decoder(id);
1177 codec = avcodec_find_encoder(id);
1180 return "unknown_codec";
1183 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1185 int i, len, ret = 0;
1187 #define TAG_PRINT(x) \
1188 (((x) >= '0' && (x) <= '9') || \
1189 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1190 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1192 for (i = 0; i < 4; i++) {
1193 len = snprintf(buf, buf_size,
1194 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1196 buf_size = buf_size > len ? buf_size - len : 0;
1203 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1205 const char *codec_type;
1206 const char *codec_name;
1207 const char *profile = NULL;
1210 AVRational display_aspect_ratio;
1211 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1213 if (!buf || buf_size <= 0)
1215 codec_type = av_get_media_type_string(enc->codec_type);
1216 codec_name = avcodec_get_name(enc->codec_id);
1217 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1219 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1221 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1223 if (enc->codec && strcmp(enc->codec->name, codec_name))
1224 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1227 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1228 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1229 && av_log_get_level() >= AV_LOG_VERBOSE
1231 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1232 ", %d reference frame%s",
1233 enc->refs, enc->refs > 1 ? "s" : "");
1236 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1237 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1239 switch (enc->codec_type) {
1240 case AVMEDIA_TYPE_VIDEO:
1242 char detail[256] = "(";
1244 av_strlcat(buf, separator, buf_size);
1246 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1247 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1248 av_get_pix_fmt_name(enc->pix_fmt));
1249 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1250 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1251 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1252 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1253 av_strlcatf(detail, sizeof(detail), "%s, ",
1254 av_color_range_name(enc->color_range));
1256 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1257 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1258 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1259 if (enc->colorspace != (int)enc->color_primaries ||
1260 enc->colorspace != (int)enc->color_trc) {
1262 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1263 av_color_space_name(enc->colorspace),
1264 av_color_primaries_name(enc->color_primaries),
1265 av_color_transfer_name(enc->color_trc));
1267 av_strlcatf(detail, sizeof(detail), "%s, ",
1268 av_get_colorspace_name(enc->colorspace));
1271 if (enc->field_order != AV_FIELD_UNKNOWN) {
1272 const char *field_order = "progressive";
1273 if (enc->field_order == AV_FIELD_TT)
1274 field_order = "top first";
1275 else if (enc->field_order == AV_FIELD_BB)
1276 field_order = "bottom first";
1277 else if (enc->field_order == AV_FIELD_TB)
1278 field_order = "top coded first (swapped)";
1279 else if (enc->field_order == AV_FIELD_BT)
1280 field_order = "bottom coded first (swapped)";
1282 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1285 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1286 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1287 av_strlcatf(detail, sizeof(detail), "%s, ",
1288 av_chroma_location_name(enc->chroma_sample_location));
1290 if (strlen(detail) > 1) {
1291 detail[strlen(detail) - 2] = 0;
1292 av_strlcatf(buf, buf_size, "%s)", detail);
1297 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1299 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1301 enc->width, enc->height);
1303 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1304 (enc->width != enc->coded_width ||
1305 enc->height != enc->coded_height))
1306 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1307 " (%dx%d)", enc->coded_width, enc->coded_height);
1309 if (enc->sample_aspect_ratio.num) {
1310 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1311 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1312 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1314 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1315 " [SAR %d:%d DAR %d:%d]",
1316 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1317 display_aspect_ratio.num, display_aspect_ratio.den);
1319 if (av_log_get_level() >= AV_LOG_DEBUG) {
1320 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1321 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1323 enc->time_base.num / g, enc->time_base.den / g);
1327 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1328 ", q=%d-%d", enc->qmin, enc->qmax);
1330 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1331 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1332 ", Closed Captions");
1333 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1334 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1338 case AVMEDIA_TYPE_AUDIO:
1339 av_strlcat(buf, separator, buf_size);
1341 if (enc->sample_rate) {
1342 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1343 "%d Hz, ", enc->sample_rate);
1345 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1346 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1347 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1348 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1350 if ( enc->bits_per_raw_sample > 0
1351 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1352 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1353 " (%d bit)", enc->bits_per_raw_sample);
1354 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1355 if (enc->initial_padding)
1356 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1357 ", delay %d", enc->initial_padding);
1358 if (enc->trailing_padding)
1359 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360 ", padding %d", enc->trailing_padding);
1363 case AVMEDIA_TYPE_DATA:
1364 if (av_log_get_level() >= AV_LOG_DEBUG) {
1365 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1367 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1369 enc->time_base.num / g, enc->time_base.den / g);
1372 case AVMEDIA_TYPE_SUBTITLE:
1374 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1375 ", %dx%d", enc->width, enc->height);
1381 if (enc->flags & AV_CODEC_FLAG_PASS1)
1382 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1384 if (enc->flags & AV_CODEC_FLAG_PASS2)
1385 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1388 bitrate = get_bit_rate(enc);
1390 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1391 ", %"PRId64" kb/s", bitrate / 1000);
1392 } else if (enc->rc_max_rate > 0) {
1393 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1394 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1398 const char *av_get_profile_name(const AVCodec *codec, int profile)
1401 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1404 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1405 if (p->profile == profile)
1411 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1413 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1416 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1419 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1420 if (p->profile == profile)
1426 unsigned avcodec_version(void)
1428 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1429 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1430 av_assert0(AV_CODEC_ID_SRT==94216);
1431 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1433 return LIBAVCODEC_VERSION_INT;
1436 const char *avcodec_configuration(void)
1438 return FFMPEG_CONFIGURATION;
1441 const char *avcodec_license(void)
1443 #define LICENSE_PREFIX "libavcodec license: "
1444 return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1447 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1450 case AV_CODEC_ID_8SVX_EXP:
1451 case AV_CODEC_ID_8SVX_FIB:
1452 case AV_CODEC_ID_ADPCM_CT:
1453 case AV_CODEC_ID_ADPCM_IMA_APC:
1454 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1455 case AV_CODEC_ID_ADPCM_IMA_OKI:
1456 case AV_CODEC_ID_ADPCM_IMA_WS:
1457 case AV_CODEC_ID_ADPCM_G722:
1458 case AV_CODEC_ID_ADPCM_YAMAHA:
1459 case AV_CODEC_ID_ADPCM_AICA:
1461 case AV_CODEC_ID_DSD_LSBF:
1462 case AV_CODEC_ID_DSD_MSBF:
1463 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1464 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1465 case AV_CODEC_ID_PCM_ALAW:
1466 case AV_CODEC_ID_PCM_MULAW:
1467 case AV_CODEC_ID_PCM_VIDC:
1468 case AV_CODEC_ID_PCM_S8:
1469 case AV_CODEC_ID_PCM_S8_PLANAR:
1470 case AV_CODEC_ID_PCM_U8:
1471 case AV_CODEC_ID_SDX2_DPCM:
1472 case AV_CODEC_ID_DERF_DPCM:
1474 case AV_CODEC_ID_PCM_S16BE:
1475 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1476 case AV_CODEC_ID_PCM_S16LE:
1477 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1478 case AV_CODEC_ID_PCM_U16BE:
1479 case AV_CODEC_ID_PCM_U16LE:
1481 case AV_CODEC_ID_PCM_S24DAUD:
1482 case AV_CODEC_ID_PCM_S24BE:
1483 case AV_CODEC_ID_PCM_S24LE:
1484 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1485 case AV_CODEC_ID_PCM_U24BE:
1486 case AV_CODEC_ID_PCM_U24LE:
1488 case AV_CODEC_ID_PCM_S32BE:
1489 case AV_CODEC_ID_PCM_S32LE:
1490 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1491 case AV_CODEC_ID_PCM_U32BE:
1492 case AV_CODEC_ID_PCM_U32LE:
1493 case AV_CODEC_ID_PCM_F32BE:
1494 case AV_CODEC_ID_PCM_F32LE:
1495 case AV_CODEC_ID_PCM_F24LE:
1496 case AV_CODEC_ID_PCM_F16LE:
1498 case AV_CODEC_ID_PCM_F64BE:
1499 case AV_CODEC_ID_PCM_F64LE:
1500 case AV_CODEC_ID_PCM_S64BE:
1501 case AV_CODEC_ID_PCM_S64LE:
1508 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1510 static const enum AVCodecID map[][2] = {
1511 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1512 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1513 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1514 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1515 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1516 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1517 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1518 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1519 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1520 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1521 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1523 if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1524 return AV_CODEC_ID_NONE;
1525 if (be < 0 || be > 1)
1527 return map[fmt][be];
1530 int av_get_bits_per_sample(enum AVCodecID codec_id)
1533 case AV_CODEC_ID_ADPCM_SBPRO_2:
1535 case AV_CODEC_ID_ADPCM_SBPRO_3:
1537 case AV_CODEC_ID_ADPCM_SBPRO_4:
1538 case AV_CODEC_ID_ADPCM_IMA_WAV:
1539 case AV_CODEC_ID_ADPCM_IMA_QT:
1540 case AV_CODEC_ID_ADPCM_SWF:
1541 case AV_CODEC_ID_ADPCM_MS:
1544 return av_get_exact_bits_per_sample(codec_id);
1548 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1549 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1550 uint8_t * extradata, int frame_size, int frame_bytes)
1552 int bps = av_get_exact_bits_per_sample(id);
1553 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1555 /* codecs with an exact constant bits per sample */
1556 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1557 return (frame_bytes * 8LL) / (bps * ch);
1558 bps = bits_per_coded_sample;
1560 /* codecs with a fixed packet duration */
1562 case AV_CODEC_ID_ADPCM_ADX: return 32;
1563 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1564 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1565 case AV_CODEC_ID_AMR_NB:
1566 case AV_CODEC_ID_EVRC:
1567 case AV_CODEC_ID_GSM:
1568 case AV_CODEC_ID_QCELP:
1569 case AV_CODEC_ID_RA_288: return 160;
1570 case AV_CODEC_ID_AMR_WB:
1571 case AV_CODEC_ID_GSM_MS: return 320;
1572 case AV_CODEC_ID_MP1: return 384;
1573 case AV_CODEC_ID_ATRAC1: return 512;
1574 case AV_CODEC_ID_ATRAC9:
1575 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1576 case AV_CODEC_ID_ATRAC3P: return 2048;
1577 case AV_CODEC_ID_MP2:
1578 case AV_CODEC_ID_MUSEPACK7: return 1152;
1579 case AV_CODEC_ID_AC3: return 1536;
1583 /* calc from sample rate */
1584 if (id == AV_CODEC_ID_TTA)
1585 return 256 * sr / 245;
1586 else if (id == AV_CODEC_ID_DST)
1587 return 588 * sr / 44100;
1590 /* calc from sample rate and channels */
1591 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1592 return (480 << (sr / 22050)) / ch;
1595 if (id == AV_CODEC_ID_MP3)
1596 return sr <= 24000 ? 576 : 1152;
1600 /* calc from block_align */
1601 if (id == AV_CODEC_ID_SIPR) {
1603 case 20: return 160;
1604 case 19: return 144;
1605 case 29: return 288;
1606 case 37: return 480;
1608 } else if (id == AV_CODEC_ID_ILBC) {
1610 case 38: return 160;
1611 case 50: return 240;
1616 if (frame_bytes > 0) {
1617 /* calc from frame_bytes only */
1618 if (id == AV_CODEC_ID_TRUESPEECH)
1619 return 240 * (frame_bytes / 32);
1620 if (id == AV_CODEC_ID_NELLYMOSER)
1621 return 256 * (frame_bytes / 64);
1622 if (id == AV_CODEC_ID_RA_144)
1623 return 160 * (frame_bytes / 20);
1626 /* calc from frame_bytes and bits_per_coded_sample */
1627 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1628 return frame_bytes * 8 / bps;
1631 if (ch > 0 && ch < INT_MAX/16) {
1632 /* calc from frame_bytes and channels */
1634 case AV_CODEC_ID_ADPCM_AFC:
1635 return frame_bytes / (9 * ch) * 16;
1636 case AV_CODEC_ID_ADPCM_PSX:
1637 case AV_CODEC_ID_ADPCM_DTK:
1638 return frame_bytes / (16 * ch) * 28;
1639 case AV_CODEC_ID_ADPCM_4XM:
1640 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1641 case AV_CODEC_ID_ADPCM_IMA_ISS:
1642 return (frame_bytes - 4 * ch) * 2 / ch;
1643 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1644 return (frame_bytes - 4) * 2 / ch;
1645 case AV_CODEC_ID_ADPCM_IMA_AMV:
1646 return (frame_bytes - 8) * 2 / ch;
1647 case AV_CODEC_ID_ADPCM_THP:
1648 case AV_CODEC_ID_ADPCM_THP_LE:
1650 return frame_bytes * 14 / (8 * ch);
1652 case AV_CODEC_ID_ADPCM_XA:
1653 return (frame_bytes / 128) * 224 / ch;
1654 case AV_CODEC_ID_INTERPLAY_DPCM:
1655 return (frame_bytes - 6 - ch) / ch;
1656 case AV_CODEC_ID_ROQ_DPCM:
1657 return (frame_bytes - 8) / ch;
1658 case AV_CODEC_ID_XAN_DPCM:
1659 return (frame_bytes - 2 * ch) / ch;
1660 case AV_CODEC_ID_MACE3:
1661 return 3 * frame_bytes / ch;
1662 case AV_CODEC_ID_MACE6:
1663 return 6 * frame_bytes / ch;
1664 case AV_CODEC_ID_PCM_LXF:
1665 return 2 * (frame_bytes / (5 * ch));
1666 case AV_CODEC_ID_IAC:
1667 case AV_CODEC_ID_IMC:
1668 return 4 * frame_bytes / ch;
1672 /* calc from frame_bytes, channels, and codec_tag */
1673 if (id == AV_CODEC_ID_SOL_DPCM) {
1675 return frame_bytes / ch;
1677 return frame_bytes * 2 / ch;
1682 /* calc from frame_bytes, channels, and block_align */
1683 int blocks = frame_bytes / ba;
1685 case AV_CODEC_ID_ADPCM_IMA_WAV:
1686 if (bps < 2 || bps > 5)
1688 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1689 case AV_CODEC_ID_ADPCM_IMA_DK3:
1690 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1691 case AV_CODEC_ID_ADPCM_IMA_DK4:
1692 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1693 case AV_CODEC_ID_ADPCM_IMA_RAD:
1694 return blocks * ((ba - 4 * ch) * 2 / ch);
1695 case AV_CODEC_ID_ADPCM_MS:
1696 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1697 case AV_CODEC_ID_ADPCM_MTAF:
1698 return blocks * (ba - 16) * 2 / ch;
1703 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1705 case AV_CODEC_ID_PCM_DVD:
1706 if(bps<4 || frame_bytes<3)
1708 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1709 case AV_CODEC_ID_PCM_BLURAY:
1710 if(bps<4 || frame_bytes<4)
1712 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1713 case AV_CODEC_ID_S302M:
1714 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1720 /* Fall back on using frame_size */
1721 if (frame_size > 1 && frame_bytes)
1724 //For WMA we currently have no other means to calculate duration thus we
1725 //do it here by assuming CBR, which is true for all known cases.
1726 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1727 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1728 return (frame_bytes * 8LL * sr) / bitrate;
1734 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1736 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1737 avctx->channels, avctx->block_align,
1738 avctx->codec_tag, avctx->bits_per_coded_sample,
1739 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1743 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1745 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1746 par->channels, par->block_align,
1747 par->codec_tag, par->bits_per_coded_sample,
1748 par->bit_rate, par->extradata, par->frame_size,
1753 int ff_thread_init(AVCodecContext *s)
1760 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1774 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1777 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1781 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1784 if (!codec->hw_configs || index < 0)
1786 for (i = 0; i <= index; i++)
1787 if (!codec->hw_configs[i])
1789 return &codec->hw_configs[index]->public;
1792 #if FF_API_USER_VISIBLE_AVHWACCEL
1793 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1798 void av_register_hwaccel(AVHWAccel *hwaccel)
1804 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1810 unsigned int avpriv_toupper4(unsigned int x)
1812 return av_toupper(x & 0xFF) +
1813 (av_toupper((x >> 8) & 0xFF) << 8) +
1814 (av_toupper((x >> 16) & 0xFF) << 16) +
1815 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1818 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
1822 dst->owner[0] = src->owner[0];
1823 dst->owner[1] = src->owner[1];
1825 ret = av_frame_ref(dst->f, src->f);
1829 av_assert0(!dst->progress);
1831 if (src->progress &&
1832 !(dst->progress = av_buffer_ref(src->progress))) {
1833 ff_thread_release_buffer(dst->owner[0], dst);
1834 return AVERROR(ENOMEM);
1842 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1844 return ff_get_format(avctx, fmt);
1847 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1849 f->owner[0] = f->owner[1] = avctx;
1850 return ff_get_buffer(avctx, f->f, flags);
1853 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1856 av_frame_unref(f->f);
1859 void ff_thread_finish_setup(AVCodecContext *avctx)
1863 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1867 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1871 int ff_thread_can_start_frame(AVCodecContext *avctx)
1876 int ff_alloc_entries(AVCodecContext *avctx, int count)
1881 void ff_reset_entries(AVCodecContext *avctx)
1885 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1889 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1895 int avcodec_is_open(AVCodecContext *s)
1897 return !!s->internal;
1900 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1905 ret = av_bprint_finalize(buf, &str);
1908 if (!av_bprint_is_complete(buf)) {
1910 return AVERROR(ENOMEM);
1913 avctx->extradata = str;
1914 /* Note: the string is NUL terminated (so extradata can be read as a
1915 * string), but the ending character is not accounted in the size (in
1916 * binary formats you are likely not supposed to mux that character). When
1917 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1919 avctx->extradata_size = buf->len;
1923 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1925 uint32_t *av_restrict state)
1929 av_assert0(p <= end);
1933 for (i = 0; i < 3; i++) {
1934 uint32_t tmp = *state << 8;
1935 *state = tmp + *(p++);
1936 if (tmp == 0x100 || p == end)
1941 if (p[-1] > 1 ) p += 3;
1942 else if (p[-2] ) p += 2;
1943 else if (p[-3]|(p[-1]-1)) p++;
1950 p = FFMIN(p, end) - 4;
1951 *state = AV_RB32(p);
1956 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
1958 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1963 *size = sizeof(*props);
1965 props->vbv_delay = UINT64_MAX;
1970 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
1972 AVPacketSideData *tmp;
1973 AVCPBProperties *props;
1977 for (i = 0; i < avctx->nb_coded_side_data; i++)
1978 if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
1979 return (AVCPBProperties *)avctx->coded_side_data[i].data;
1981 props = av_cpb_properties_alloc(&size);
1985 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1991 avctx->coded_side_data = tmp;
1992 avctx->nb_coded_side_data++;
1994 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
1995 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1996 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2001 static void codec_parameters_reset(AVCodecParameters *par)
2003 av_freep(&par->extradata);
2005 memset(par, 0, sizeof(*par));
2007 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2008 par->codec_id = AV_CODEC_ID_NONE;
2010 par->field_order = AV_FIELD_UNKNOWN;
2011 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2012 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2013 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2014 par->color_space = AVCOL_SPC_UNSPECIFIED;
2015 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2016 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2017 par->profile = FF_PROFILE_UNKNOWN;
2018 par->level = FF_LEVEL_UNKNOWN;
2021 AVCodecParameters *avcodec_parameters_alloc(void)
2023 AVCodecParameters *par = av_mallocz(sizeof(*par));
2027 codec_parameters_reset(par);
2031 void avcodec_parameters_free(AVCodecParameters **ppar)
2033 AVCodecParameters *par = *ppar;
2037 codec_parameters_reset(par);
2042 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2044 codec_parameters_reset(dst);
2045 memcpy(dst, src, sizeof(*dst));
2047 dst->extradata = NULL;
2048 dst->extradata_size = 0;
2049 if (src->extradata) {
2050 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2051 if (!dst->extradata)
2052 return AVERROR(ENOMEM);
2053 memcpy(dst->extradata, src->extradata, src->extradata_size);
2054 dst->extradata_size = src->extradata_size;
2060 int avcodec_parameters_from_context(AVCodecParameters *par,
2061 const AVCodecContext *codec)
2063 codec_parameters_reset(par);
2065 par->codec_type = codec->codec_type;
2066 par->codec_id = codec->codec_id;
2067 par->codec_tag = codec->codec_tag;
2069 par->bit_rate = codec->bit_rate;
2070 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2071 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2072 par->profile = codec->profile;
2073 par->level = codec->level;
2075 switch (par->codec_type) {
2076 case AVMEDIA_TYPE_VIDEO:
2077 par->format = codec->pix_fmt;
2078 par->width = codec->width;
2079 par->height = codec->height;
2080 par->field_order = codec->field_order;
2081 par->color_range = codec->color_range;
2082 par->color_primaries = codec->color_primaries;
2083 par->color_trc = codec->color_trc;
2084 par->color_space = codec->colorspace;
2085 par->chroma_location = codec->chroma_sample_location;
2086 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2087 par->video_delay = codec->has_b_frames;
2089 case AVMEDIA_TYPE_AUDIO:
2090 par->format = codec->sample_fmt;
2091 par->channel_layout = codec->channel_layout;
2092 par->channels = codec->channels;
2093 par->sample_rate = codec->sample_rate;
2094 par->block_align = codec->block_align;
2095 par->frame_size = codec->frame_size;
2096 par->initial_padding = codec->initial_padding;
2097 par->trailing_padding = codec->trailing_padding;
2098 par->seek_preroll = codec->seek_preroll;
2100 case AVMEDIA_TYPE_SUBTITLE:
2101 par->width = codec->width;
2102 par->height = codec->height;
2106 if (codec->extradata) {
2107 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2108 if (!par->extradata)
2109 return AVERROR(ENOMEM);
2110 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2111 par->extradata_size = codec->extradata_size;
2117 int avcodec_parameters_to_context(AVCodecContext *codec,
2118 const AVCodecParameters *par)
2120 codec->codec_type = par->codec_type;
2121 codec->codec_id = par->codec_id;
2122 codec->codec_tag = par->codec_tag;
2124 codec->bit_rate = par->bit_rate;
2125 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2126 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2127 codec->profile = par->profile;
2128 codec->level = par->level;
2130 switch (par->codec_type) {
2131 case AVMEDIA_TYPE_VIDEO:
2132 codec->pix_fmt = par->format;
2133 codec->width = par->width;
2134 codec->height = par->height;
2135 codec->field_order = par->field_order;
2136 codec->color_range = par->color_range;
2137 codec->color_primaries = par->color_primaries;
2138 codec->color_trc = par->color_trc;
2139 codec->colorspace = par->color_space;
2140 codec->chroma_sample_location = par->chroma_location;
2141 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2142 codec->has_b_frames = par->video_delay;
2144 case AVMEDIA_TYPE_AUDIO:
2145 codec->sample_fmt = par->format;
2146 codec->channel_layout = par->channel_layout;
2147 codec->channels = par->channels;
2148 codec->sample_rate = par->sample_rate;
2149 codec->block_align = par->block_align;
2150 codec->frame_size = par->frame_size;
2152 codec->initial_padding = par->initial_padding;
2153 codec->trailing_padding = par->trailing_padding;
2154 codec->seek_preroll = par->seek_preroll;
2156 case AVMEDIA_TYPE_SUBTITLE:
2157 codec->width = par->width;
2158 codec->height = par->height;
2162 if (par->extradata) {
2163 av_freep(&codec->extradata);
2164 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2165 if (!codec->extradata)
2166 return AVERROR(ENOMEM);
2167 memcpy(codec->extradata, par->extradata, par->extradata_size);
2168 codec->extradata_size = par->extradata_size;
2174 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2175 void **data, size_t *sei_size)
2177 AVFrameSideData *side_data = NULL;
2181 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2188 *sei_size = side_data->size + 11;
2189 *data = av_mallocz(*sei_size + prefix_len);
2191 return AVERROR(ENOMEM);
2192 sei_data = (uint8_t*)*data + prefix_len;
2200 * 'GA94' is standard in North America for ATSC, but hard coding
2201 * this style may not be the right thing to do -- other formats
2202 * do exist. This information is not available in the side_data
2203 * so we are going with this right now.
2205 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2207 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2210 memcpy(sei_data + 10, side_data->data, side_data->size);
2212 sei_data[side_data->size+10] = 255;
2217 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2219 AVRational framerate = avctx->framerate;
2220 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2223 if (!(framerate.num && framerate.den))
2224 framerate = av_inv_q(avctx->time_base);
2225 if (!(framerate.num && framerate.den))
2228 if (!bits_per_coded_sample) {
2229 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2230 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2232 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2233 framerate.num / framerate.den;
2238 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2239 const int * array_valid_values, int default_value)
2244 ref_val = array_valid_values[i];
2245 if (ref_val == INT_MAX)
2251 /* val is not a valid value */
2252 av_log(ctx, AV_LOG_DEBUG,
2253 "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2254 return default_value;