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->receive_packet);
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 avci->compat_decode_frame = av_frame_alloc();
588 avci->buffer_frame = av_frame_alloc();
589 avci->buffer_pkt = av_packet_alloc();
590 avci->es.in_frame = av_frame_alloc();
591 avci->ds.in_pkt = av_packet_alloc();
592 avci->last_pkt_props = av_packet_alloc();
593 if (!avci->to_free || !avci->compat_decode_frame ||
594 !avci->buffer_frame || !avci->buffer_pkt ||
595 !avci->es.in_frame || !avci->ds.in_pkt ||
596 !avci->last_pkt_props) {
597 ret = AVERROR(ENOMEM);
601 avci->skip_samples_multiplier = 1;
603 if (codec->priv_data_size > 0) {
604 if (!avctx->priv_data) {
605 avctx->priv_data = av_mallocz(codec->priv_data_size);
606 if (!avctx->priv_data) {
607 ret = AVERROR(ENOMEM);
610 if (codec->priv_class) {
611 *(const AVClass **)avctx->priv_data = codec->priv_class;
612 av_opt_set_defaults(avctx->priv_data);
615 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
618 avctx->priv_data = NULL;
620 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
623 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
624 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
625 ret = AVERROR(EINVAL);
629 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
630 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
631 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
632 if (avctx->coded_width && avctx->coded_height)
633 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
634 else if (avctx->width && avctx->height)
635 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
640 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
641 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
642 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
643 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
644 ff_set_dimensions(avctx, 0, 0);
647 if (avctx->width > 0 && avctx->height > 0) {
648 if (av_image_check_sar(avctx->width, avctx->height,
649 avctx->sample_aspect_ratio) < 0) {
650 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
651 avctx->sample_aspect_ratio.num,
652 avctx->sample_aspect_ratio.den);
653 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
657 /* if the decoder init function was already called previously,
658 * free the already allocated subtitle_header before overwriting it */
659 if (av_codec_is_decoder(codec))
660 av_freep(&avctx->subtitle_header);
662 if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
663 av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
664 ret = AVERROR(EINVAL);
667 if (avctx->sample_rate < 0) {
668 av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
669 ret = AVERROR(EINVAL);
672 if (avctx->block_align < 0) {
673 av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
674 ret = AVERROR(EINVAL);
678 avctx->codec = codec;
679 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
680 avctx->codec_id == AV_CODEC_ID_NONE) {
681 avctx->codec_type = codec->type;
682 avctx->codec_id = codec->id;
684 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
685 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
686 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
687 ret = AVERROR(EINVAL);
690 avctx->frame_number = 0;
691 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
693 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
694 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
695 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
697 av_log(avctx, AV_LOG_ERROR,
698 "The %s '%s' is experimental but experimental codecs are not enabled, "
699 "add '-strict %d' if you want to use it.\n",
700 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
701 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
702 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
703 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
704 codec_string, codec2->name);
705 ret = AVERROR_EXPERIMENTAL;
709 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
710 (!avctx->time_base.num || !avctx->time_base.den)) {
711 avctx->time_base.num = 1;
712 avctx->time_base.den = avctx->sample_rate;
716 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
718 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
719 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
720 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
721 ff_lock_avcodec(avctx, codec);
726 if (av_codec_is_decoder(avctx->codec)) {
727 ret = ff_decode_bsfs_init(avctx);
733 && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
734 ret = ff_thread_init(avctx);
739 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
740 avctx->thread_count = 1;
742 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
743 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
744 avctx->codec->max_lowres);
745 avctx->lowres = avctx->codec->max_lowres;
748 if (av_codec_is_encoder(avctx->codec)) {
750 #if FF_API_CODED_FRAME
751 FF_DISABLE_DEPRECATION_WARNINGS
752 avctx->coded_frame = av_frame_alloc();
753 if (!avctx->coded_frame) {
754 ret = AVERROR(ENOMEM);
757 FF_ENABLE_DEPRECATION_WARNINGS
760 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
761 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
762 ret = AVERROR(EINVAL);
766 if (avctx->codec->sample_fmts) {
767 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
768 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
770 if (avctx->channels == 1 &&
771 av_get_planar_sample_fmt(avctx->sample_fmt) ==
772 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
773 avctx->sample_fmt = avctx->codec->sample_fmts[i];
777 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
779 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
780 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
781 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
782 ret = AVERROR(EINVAL);
786 if (avctx->codec->pix_fmts) {
787 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
788 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
790 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
791 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
792 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
794 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
795 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
796 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
797 ret = AVERROR(EINVAL);
800 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
801 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
802 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
803 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
804 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
805 avctx->color_range = AVCOL_RANGE_JPEG;
807 if (avctx->codec->supported_samplerates) {
808 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
809 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
811 if (avctx->codec->supported_samplerates[i] == 0) {
812 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
814 ret = AVERROR(EINVAL);
818 if (avctx->sample_rate < 0) {
819 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
821 ret = AVERROR(EINVAL);
824 if (avctx->codec->channel_layouts) {
825 if (!avctx->channel_layout) {
826 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
828 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
829 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
831 if (avctx->codec->channel_layouts[i] == 0) {
833 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
834 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
835 ret = AVERROR(EINVAL);
840 if (avctx->channel_layout && avctx->channels) {
841 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
842 if (channels != avctx->channels) {
844 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
845 av_log(avctx, AV_LOG_ERROR,
846 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
847 buf, channels, avctx->channels);
848 ret = AVERROR(EINVAL);
851 } else if (avctx->channel_layout) {
852 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
854 if (avctx->channels < 0) {
855 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
857 ret = AVERROR(EINVAL);
860 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
861 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
862 if ( avctx->bits_per_raw_sample < 0
863 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
864 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
865 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
866 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
868 if (avctx->width <= 0 || avctx->height <= 0) {
869 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
870 ret = AVERROR(EINVAL);
874 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
875 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
876 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
879 if (!avctx->rc_initial_buffer_occupancy)
880 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
882 if (avctx->ticks_per_frame && avctx->time_base.num &&
883 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
884 av_log(avctx, AV_LOG_ERROR,
885 "ticks_per_frame %d too large for the timebase %d/%d.",
886 avctx->ticks_per_frame,
887 avctx->time_base.num,
888 avctx->time_base.den);
892 if (avctx->hw_frames_ctx) {
893 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
894 if (frames_ctx->format != avctx->pix_fmt) {
895 av_log(avctx, AV_LOG_ERROR,
896 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
897 ret = AVERROR(EINVAL);
900 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
901 avctx->sw_pix_fmt != frames_ctx->sw_format) {
902 av_log(avctx, AV_LOG_ERROR,
903 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
904 "and AVHWFramesContext.sw_format (%s)\n",
905 av_get_pix_fmt_name(avctx->sw_pix_fmt),
906 av_get_pix_fmt_name(frames_ctx->sw_format));
907 ret = AVERROR(EINVAL);
910 avctx->sw_pix_fmt = frames_ctx->sw_format;
914 avctx->pts_correction_num_faulty_pts =
915 avctx->pts_correction_num_faulty_dts = 0;
916 avctx->pts_correction_last_pts =
917 avctx->pts_correction_last_dts = INT64_MIN;
919 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
920 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
921 av_log(avctx, AV_LOG_WARNING,
922 "gray decoding requested but not enabled at configuration time\n");
923 if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
924 avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
927 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
928 || avci->frame_thread_encoder)) {
929 ret = avctx->codec->init(avctx);
938 if (av_codec_is_decoder(avctx->codec)) {
939 if (!avctx->bit_rate)
940 avctx->bit_rate = get_bit_rate(avctx);
941 /* validate channel layout from the decoder */
942 if (avctx->channel_layout) {
943 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
944 if (!avctx->channels)
945 avctx->channels = channels;
946 else if (channels != avctx->channels) {
948 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
949 av_log(avctx, AV_LOG_WARNING,
950 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
951 "ignoring specified channel layout\n",
952 buf, channels, avctx->channels);
953 avctx->channel_layout = 0;
956 if (avctx->channels && avctx->channels < 0 ||
957 avctx->channels > FF_SANE_NB_CHANNELS) {
958 ret = AVERROR(EINVAL);
961 if (avctx->bits_per_coded_sample < 0) {
962 ret = AVERROR(EINVAL);
965 if (avctx->sub_charenc) {
966 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
967 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
968 "supported with subtitles codecs\n");
969 ret = AVERROR(EINVAL);
971 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
972 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
973 "subtitles character encoding will be ignored\n",
974 avctx->codec_descriptor->name);
975 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
977 /* input character encoding is set for a text based subtitle
978 * codec at this point */
979 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
980 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
982 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
984 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
985 if (cd == (iconv_t)-1) {
986 ret = AVERROR(errno);
987 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
988 "with input character encoding \"%s\"\n", avctx->sub_charenc);
993 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
994 "conversion needs a libavcodec built with iconv support "
996 ret = AVERROR(ENOSYS);
1003 #if FF_API_AVCTX_TIMEBASE
1004 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1005 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1008 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1009 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1013 ff_unlock_avcodec(codec);
1015 av_dict_free(options);
1021 if (avctx->codec && avctx->codec->close &&
1023 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
1024 avctx->codec->close(avctx);
1026 if (HAVE_THREADS && avci->thread_ctx)
1027 ff_thread_free(avctx);
1029 if (codec->priv_class && codec->priv_data_size)
1030 av_opt_free(avctx->priv_data);
1033 #if FF_API_CODED_FRAME
1034 FF_DISABLE_DEPRECATION_WARNINGS
1035 av_frame_free(&avctx->coded_frame);
1036 FF_ENABLE_DEPRECATION_WARNINGS
1040 av_freep(&avctx->priv_data);
1041 av_freep(&avctx->subtitle_header);
1043 av_frame_free(&avci->to_free);
1044 av_frame_free(&avci->compat_decode_frame);
1045 av_frame_free(&avci->buffer_frame);
1046 av_packet_free(&avci->buffer_pkt);
1047 av_packet_free(&avci->last_pkt_props);
1049 av_packet_free(&avci->ds.in_pkt);
1050 av_frame_free(&avci->es.in_frame);
1051 av_bsf_free(&avci->bsf);
1053 av_buffer_unref(&avci->pool);
1056 avctx->internal = NULL;
1057 avctx->codec = NULL;
1061 void avcodec_flush_buffers(AVCodecContext *avctx)
1063 AVCodecInternal *avci = avctx->internal;
1065 if (av_codec_is_encoder(avctx->codec)) {
1066 int caps = avctx->codec->capabilities;
1068 if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1069 // Only encoders that explicitly declare support for it can be
1070 // flushed. Otherwise, this is a no-op.
1071 av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1072 "that doesn't support it\n");
1076 // We haven't implemented flushing for frame-threaded encoders.
1077 av_assert0(!(caps & AV_CODEC_CAP_FRAME_THREADS));
1081 avci->draining_done = 0;
1082 avci->nb_draining_errors = 0;
1083 av_frame_unref(avci->buffer_frame);
1084 av_frame_unref(avci->compat_decode_frame);
1085 av_packet_unref(avci->buffer_pkt);
1087 av_frame_unref(avci->es.in_frame);
1088 av_packet_unref(avci->ds.in_pkt);
1090 if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1091 ff_thread_flush(avctx);
1092 else if (avctx->codec->flush)
1093 avctx->codec->flush(avctx);
1095 avctx->pts_correction_last_pts =
1096 avctx->pts_correction_last_dts = INT64_MIN;
1098 if (av_codec_is_decoder(avctx->codec))
1099 av_bsf_flush(avci->bsf);
1101 if (!avctx->refcounted_frames)
1102 av_frame_unref(avci->to_free);
1105 void avsubtitle_free(AVSubtitle *sub)
1109 for (i = 0; i < sub->num_rects; i++) {
1110 av_freep(&sub->rects[i]->data[0]);
1111 av_freep(&sub->rects[i]->data[1]);
1112 av_freep(&sub->rects[i]->data[2]);
1113 av_freep(&sub->rects[i]->data[3]);
1114 av_freep(&sub->rects[i]->text);
1115 av_freep(&sub->rects[i]->ass);
1116 av_freep(&sub->rects[i]);
1119 av_freep(&sub->rects);
1121 memset(sub, 0, sizeof(*sub));
1124 av_cold int avcodec_close(AVCodecContext *avctx)
1131 if (avcodec_is_open(avctx)) {
1132 if (CONFIG_FRAME_THREAD_ENCODER &&
1133 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1134 ff_frame_thread_encoder_free(avctx);
1136 if (HAVE_THREADS && avctx->internal->thread_ctx)
1137 ff_thread_free(avctx);
1138 if (avctx->codec && avctx->codec->close)
1139 avctx->codec->close(avctx);
1140 avctx->internal->byte_buffer_size = 0;
1141 av_freep(&avctx->internal->byte_buffer);
1142 av_frame_free(&avctx->internal->to_free);
1143 av_frame_free(&avctx->internal->compat_decode_frame);
1144 av_frame_free(&avctx->internal->buffer_frame);
1145 av_packet_free(&avctx->internal->buffer_pkt);
1146 av_packet_free(&avctx->internal->last_pkt_props);
1148 av_packet_free(&avctx->internal->ds.in_pkt);
1149 av_frame_free(&avctx->internal->es.in_frame);
1151 av_buffer_unref(&avctx->internal->pool);
1153 if (avctx->hwaccel && avctx->hwaccel->uninit)
1154 avctx->hwaccel->uninit(avctx);
1155 av_freep(&avctx->internal->hwaccel_priv_data);
1157 av_bsf_free(&avctx->internal->bsf);
1159 av_freep(&avctx->internal);
1162 for (i = 0; i < avctx->nb_coded_side_data; i++)
1163 av_freep(&avctx->coded_side_data[i].data);
1164 av_freep(&avctx->coded_side_data);
1165 avctx->nb_coded_side_data = 0;
1167 av_buffer_unref(&avctx->hw_frames_ctx);
1168 av_buffer_unref(&avctx->hw_device_ctx);
1170 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1171 av_opt_free(avctx->priv_data);
1173 av_freep(&avctx->priv_data);
1174 if (av_codec_is_encoder(avctx->codec)) {
1175 av_freep(&avctx->extradata);
1176 #if FF_API_CODED_FRAME
1177 FF_DISABLE_DEPRECATION_WARNINGS
1178 av_frame_free(&avctx->coded_frame);
1179 FF_ENABLE_DEPRECATION_WARNINGS
1182 avctx->codec = NULL;
1183 avctx->active_thread_type = 0;
1188 const char *avcodec_get_name(enum AVCodecID id)
1190 const AVCodecDescriptor *cd;
1193 if (id == AV_CODEC_ID_NONE)
1195 cd = avcodec_descriptor_get(id);
1198 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1199 codec = avcodec_find_decoder(id);
1202 codec = avcodec_find_encoder(id);
1205 return "unknown_codec";
1208 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1210 int i, len, ret = 0;
1212 #define TAG_PRINT(x) \
1213 (((x) >= '0' && (x) <= '9') || \
1214 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1215 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1217 for (i = 0; i < 4; i++) {
1218 len = snprintf(buf, buf_size,
1219 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1221 buf_size = buf_size > len ? buf_size - len : 0;
1228 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1230 const char *codec_type;
1231 const char *codec_name;
1232 const char *profile = NULL;
1235 AVRational display_aspect_ratio;
1236 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1238 if (!buf || buf_size <= 0)
1240 codec_type = av_get_media_type_string(enc->codec_type);
1241 codec_name = avcodec_get_name(enc->codec_id);
1242 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1244 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1246 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1248 if (enc->codec && strcmp(enc->codec->name, codec_name))
1249 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1252 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1253 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1254 && av_log_get_level() >= AV_LOG_VERBOSE
1256 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1257 ", %d reference frame%s",
1258 enc->refs, enc->refs > 1 ? "s" : "");
1261 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1262 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1264 switch (enc->codec_type) {
1265 case AVMEDIA_TYPE_VIDEO:
1267 char detail[256] = "(";
1269 av_strlcat(buf, separator, buf_size);
1271 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1272 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1273 av_get_pix_fmt_name(enc->pix_fmt));
1274 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1275 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1276 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1277 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1278 av_strlcatf(detail, sizeof(detail), "%s, ",
1279 av_color_range_name(enc->color_range));
1281 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1282 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1283 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1284 if (enc->colorspace != (int)enc->color_primaries ||
1285 enc->colorspace != (int)enc->color_trc) {
1287 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1288 av_color_space_name(enc->colorspace),
1289 av_color_primaries_name(enc->color_primaries),
1290 av_color_transfer_name(enc->color_trc));
1292 av_strlcatf(detail, sizeof(detail), "%s, ",
1293 av_get_colorspace_name(enc->colorspace));
1296 if (enc->field_order != AV_FIELD_UNKNOWN) {
1297 const char *field_order = "progressive";
1298 if (enc->field_order == AV_FIELD_TT)
1299 field_order = "top first";
1300 else if (enc->field_order == AV_FIELD_BB)
1301 field_order = "bottom first";
1302 else if (enc->field_order == AV_FIELD_TB)
1303 field_order = "top coded first (swapped)";
1304 else if (enc->field_order == AV_FIELD_BT)
1305 field_order = "bottom coded first (swapped)";
1307 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1310 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1311 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1312 av_strlcatf(detail, sizeof(detail), "%s, ",
1313 av_chroma_location_name(enc->chroma_sample_location));
1315 if (strlen(detail) > 1) {
1316 detail[strlen(detail) - 2] = 0;
1317 av_strlcatf(buf, buf_size, "%s)", detail);
1322 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1324 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1326 enc->width, enc->height);
1328 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1329 (enc->width != enc->coded_width ||
1330 enc->height != enc->coded_height))
1331 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1332 " (%dx%d)", enc->coded_width, enc->coded_height);
1334 if (enc->sample_aspect_ratio.num) {
1335 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1336 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1337 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1339 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1340 " [SAR %d:%d DAR %d:%d]",
1341 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1342 display_aspect_ratio.num, display_aspect_ratio.den);
1344 if (av_log_get_level() >= AV_LOG_DEBUG) {
1345 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1346 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1348 enc->time_base.num / g, enc->time_base.den / g);
1352 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1353 ", q=%d-%d", enc->qmin, enc->qmax);
1355 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1356 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1357 ", Closed Captions");
1358 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1359 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1363 case AVMEDIA_TYPE_AUDIO:
1364 av_strlcat(buf, separator, buf_size);
1366 if (enc->sample_rate) {
1367 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1368 "%d Hz, ", enc->sample_rate);
1370 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1371 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1372 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1373 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1375 if ( enc->bits_per_raw_sample > 0
1376 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1377 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1378 " (%d bit)", enc->bits_per_raw_sample);
1379 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1380 if (enc->initial_padding)
1381 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1382 ", delay %d", enc->initial_padding);
1383 if (enc->trailing_padding)
1384 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1385 ", padding %d", enc->trailing_padding);
1388 case AVMEDIA_TYPE_DATA:
1389 if (av_log_get_level() >= AV_LOG_DEBUG) {
1390 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1392 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1394 enc->time_base.num / g, enc->time_base.den / g);
1397 case AVMEDIA_TYPE_SUBTITLE:
1399 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1400 ", %dx%d", enc->width, enc->height);
1406 if (enc->flags & AV_CODEC_FLAG_PASS1)
1407 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1409 if (enc->flags & AV_CODEC_FLAG_PASS2)
1410 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1413 bitrate = get_bit_rate(enc);
1415 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1416 ", %"PRId64" kb/s", bitrate / 1000);
1417 } else if (enc->rc_max_rate > 0) {
1418 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1419 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1423 const char *av_get_profile_name(const AVCodec *codec, int profile)
1426 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1429 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1430 if (p->profile == profile)
1436 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1438 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1441 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1444 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1445 if (p->profile == profile)
1451 unsigned avcodec_version(void)
1453 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1454 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1455 av_assert0(AV_CODEC_ID_SRT==94216);
1456 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1458 return LIBAVCODEC_VERSION_INT;
1461 const char *avcodec_configuration(void)
1463 return FFMPEG_CONFIGURATION;
1466 const char *avcodec_license(void)
1468 #define LICENSE_PREFIX "libavcodec license: "
1469 return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1472 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1475 case AV_CODEC_ID_8SVX_EXP:
1476 case AV_CODEC_ID_8SVX_FIB:
1477 case AV_CODEC_ID_ADPCM_CT:
1478 case AV_CODEC_ID_ADPCM_IMA_APC:
1479 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1480 case AV_CODEC_ID_ADPCM_IMA_OKI:
1481 case AV_CODEC_ID_ADPCM_IMA_WS:
1482 case AV_CODEC_ID_ADPCM_IMA_SSI:
1483 case AV_CODEC_ID_ADPCM_G722:
1484 case AV_CODEC_ID_ADPCM_YAMAHA:
1485 case AV_CODEC_ID_ADPCM_AICA:
1487 case AV_CODEC_ID_DSD_LSBF:
1488 case AV_CODEC_ID_DSD_MSBF:
1489 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1490 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1491 case AV_CODEC_ID_PCM_ALAW:
1492 case AV_CODEC_ID_PCM_MULAW:
1493 case AV_CODEC_ID_PCM_VIDC:
1494 case AV_CODEC_ID_PCM_S8:
1495 case AV_CODEC_ID_PCM_S8_PLANAR:
1496 case AV_CODEC_ID_PCM_U8:
1497 case AV_CODEC_ID_SDX2_DPCM:
1498 case AV_CODEC_ID_DERF_DPCM:
1500 case AV_CODEC_ID_PCM_S16BE:
1501 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1502 case AV_CODEC_ID_PCM_S16LE:
1503 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1504 case AV_CODEC_ID_PCM_U16BE:
1505 case AV_CODEC_ID_PCM_U16LE:
1507 case AV_CODEC_ID_PCM_S24DAUD:
1508 case AV_CODEC_ID_PCM_S24BE:
1509 case AV_CODEC_ID_PCM_S24LE:
1510 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1511 case AV_CODEC_ID_PCM_U24BE:
1512 case AV_CODEC_ID_PCM_U24LE:
1514 case AV_CODEC_ID_PCM_S32BE:
1515 case AV_CODEC_ID_PCM_S32LE:
1516 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1517 case AV_CODEC_ID_PCM_U32BE:
1518 case AV_CODEC_ID_PCM_U32LE:
1519 case AV_CODEC_ID_PCM_F32BE:
1520 case AV_CODEC_ID_PCM_F32LE:
1521 case AV_CODEC_ID_PCM_F24LE:
1522 case AV_CODEC_ID_PCM_F16LE:
1524 case AV_CODEC_ID_PCM_F64BE:
1525 case AV_CODEC_ID_PCM_F64LE:
1526 case AV_CODEC_ID_PCM_S64BE:
1527 case AV_CODEC_ID_PCM_S64LE:
1534 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1536 static const enum AVCodecID map[][2] = {
1537 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1538 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1539 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1540 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1541 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1542 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1543 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1544 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1545 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1546 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1547 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1549 if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1550 return AV_CODEC_ID_NONE;
1551 if (be < 0 || be > 1)
1553 return map[fmt][be];
1556 int av_get_bits_per_sample(enum AVCodecID codec_id)
1559 case AV_CODEC_ID_ADPCM_SBPRO_2:
1561 case AV_CODEC_ID_ADPCM_SBPRO_3:
1563 case AV_CODEC_ID_ADPCM_SBPRO_4:
1564 case AV_CODEC_ID_ADPCM_IMA_WAV:
1565 case AV_CODEC_ID_ADPCM_IMA_QT:
1566 case AV_CODEC_ID_ADPCM_SWF:
1567 case AV_CODEC_ID_ADPCM_MS:
1570 return av_get_exact_bits_per_sample(codec_id);
1574 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1575 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1576 uint8_t * extradata, int frame_size, int frame_bytes)
1578 int bps = av_get_exact_bits_per_sample(id);
1579 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1581 /* codecs with an exact constant bits per sample */
1582 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1583 return (frame_bytes * 8LL) / (bps * ch);
1584 bps = bits_per_coded_sample;
1586 /* codecs with a fixed packet duration */
1588 case AV_CODEC_ID_ADPCM_ADX: return 32;
1589 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1590 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1591 case AV_CODEC_ID_AMR_NB:
1592 case AV_CODEC_ID_EVRC:
1593 case AV_CODEC_ID_GSM:
1594 case AV_CODEC_ID_QCELP:
1595 case AV_CODEC_ID_RA_288: return 160;
1596 case AV_CODEC_ID_AMR_WB:
1597 case AV_CODEC_ID_GSM_MS: return 320;
1598 case AV_CODEC_ID_MP1: return 384;
1599 case AV_CODEC_ID_ATRAC1: return 512;
1600 case AV_CODEC_ID_ATRAC9:
1601 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1602 case AV_CODEC_ID_ATRAC3P: return 2048;
1603 case AV_CODEC_ID_MP2:
1604 case AV_CODEC_ID_MUSEPACK7: return 1152;
1605 case AV_CODEC_ID_AC3: return 1536;
1609 /* calc from sample rate */
1610 if (id == AV_CODEC_ID_TTA)
1611 return 256 * sr / 245;
1612 else if (id == AV_CODEC_ID_DST)
1613 return 588 * sr / 44100;
1616 /* calc from sample rate and channels */
1617 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1618 return (480 << (sr / 22050)) / ch;
1621 if (id == AV_CODEC_ID_MP3)
1622 return sr <= 24000 ? 576 : 1152;
1626 /* calc from block_align */
1627 if (id == AV_CODEC_ID_SIPR) {
1629 case 20: return 160;
1630 case 19: return 144;
1631 case 29: return 288;
1632 case 37: return 480;
1634 } else if (id == AV_CODEC_ID_ILBC) {
1636 case 38: return 160;
1637 case 50: return 240;
1642 if (frame_bytes > 0) {
1643 /* calc from frame_bytes only */
1644 if (id == AV_CODEC_ID_TRUESPEECH)
1645 return 240 * (frame_bytes / 32);
1646 if (id == AV_CODEC_ID_NELLYMOSER)
1647 return 256 * (frame_bytes / 64);
1648 if (id == AV_CODEC_ID_RA_144)
1649 return 160 * (frame_bytes / 20);
1652 /* calc from frame_bytes and bits_per_coded_sample */
1653 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1654 return frame_bytes * 8 / bps;
1657 if (ch > 0 && ch < INT_MAX/16) {
1658 /* calc from frame_bytes and channels */
1660 case AV_CODEC_ID_ADPCM_AFC:
1661 return frame_bytes / (9 * ch) * 16;
1662 case AV_CODEC_ID_ADPCM_PSX:
1663 case AV_CODEC_ID_ADPCM_DTK:
1664 return frame_bytes / (16 * ch) * 28;
1665 case AV_CODEC_ID_ADPCM_4XM:
1666 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1667 case AV_CODEC_ID_ADPCM_IMA_ISS:
1668 return (frame_bytes - 4 * ch) * 2 / ch;
1669 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1670 return (frame_bytes - 4) * 2 / ch;
1671 case AV_CODEC_ID_ADPCM_IMA_AMV:
1672 return (frame_bytes - 8) * 2 / ch;
1673 case AV_CODEC_ID_ADPCM_THP:
1674 case AV_CODEC_ID_ADPCM_THP_LE:
1676 return frame_bytes * 14 / (8 * ch);
1678 case AV_CODEC_ID_ADPCM_XA:
1679 return (frame_bytes / 128) * 224 / ch;
1680 case AV_CODEC_ID_INTERPLAY_DPCM:
1681 return (frame_bytes - 6 - ch) / ch;
1682 case AV_CODEC_ID_ROQ_DPCM:
1683 return (frame_bytes - 8) / ch;
1684 case AV_CODEC_ID_XAN_DPCM:
1685 return (frame_bytes - 2 * ch) / ch;
1686 case AV_CODEC_ID_MACE3:
1687 return 3 * frame_bytes / ch;
1688 case AV_CODEC_ID_MACE6:
1689 return 6 * frame_bytes / ch;
1690 case AV_CODEC_ID_PCM_LXF:
1691 return 2 * (frame_bytes / (5 * ch));
1692 case AV_CODEC_ID_IAC:
1693 case AV_CODEC_ID_IMC:
1694 return 4 * frame_bytes / ch;
1698 /* calc from frame_bytes, channels, and codec_tag */
1699 if (id == AV_CODEC_ID_SOL_DPCM) {
1701 return frame_bytes / ch;
1703 return frame_bytes * 2 / ch;
1708 /* calc from frame_bytes, channels, and block_align */
1709 int blocks = frame_bytes / ba;
1711 case AV_CODEC_ID_ADPCM_IMA_WAV:
1712 if (bps < 2 || bps > 5)
1714 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1715 case AV_CODEC_ID_ADPCM_IMA_DK3:
1716 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1717 case AV_CODEC_ID_ADPCM_IMA_DK4:
1718 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1719 case AV_CODEC_ID_ADPCM_IMA_RAD:
1720 return blocks * ((ba - 4 * ch) * 2 / ch);
1721 case AV_CODEC_ID_ADPCM_MS:
1722 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1723 case AV_CODEC_ID_ADPCM_MTAF:
1724 return blocks * (ba - 16) * 2 / ch;
1729 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1731 case AV_CODEC_ID_PCM_DVD:
1732 if(bps<4 || frame_bytes<3)
1734 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1735 case AV_CODEC_ID_PCM_BLURAY:
1736 if(bps<4 || frame_bytes<4)
1738 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1739 case AV_CODEC_ID_S302M:
1740 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1746 /* Fall back on using frame_size */
1747 if (frame_size > 1 && frame_bytes)
1750 //For WMA we currently have no other means to calculate duration thus we
1751 //do it here by assuming CBR, which is true for all known cases.
1752 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1753 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1754 return (frame_bytes * 8LL * sr) / bitrate;
1760 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1762 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1763 avctx->channels, avctx->block_align,
1764 avctx->codec_tag, avctx->bits_per_coded_sample,
1765 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1769 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1771 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1772 par->channels, par->block_align,
1773 par->codec_tag, par->bits_per_coded_sample,
1774 par->bit_rate, par->extradata, par->frame_size,
1779 int ff_thread_init(AVCodecContext *s)
1786 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1800 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1803 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1807 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
1810 if (!codec->hw_configs || index < 0)
1812 for (i = 0; i <= index; i++)
1813 if (!codec->hw_configs[i])
1815 return &codec->hw_configs[index]->public;
1818 #if FF_API_USER_VISIBLE_AVHWACCEL
1819 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1824 void av_register_hwaccel(AVHWAccel *hwaccel)
1830 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1836 unsigned int avpriv_toupper4(unsigned int x)
1838 return av_toupper(x & 0xFF) +
1839 (av_toupper((x >> 8) & 0xFF) << 8) +
1840 (av_toupper((x >> 16) & 0xFF) << 16) +
1841 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1844 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
1848 dst->owner[0] = src->owner[0];
1849 dst->owner[1] = src->owner[1];
1851 ret = av_frame_ref(dst->f, src->f);
1855 av_assert0(!dst->progress);
1857 if (src->progress &&
1858 !(dst->progress = av_buffer_ref(src->progress))) {
1859 ff_thread_release_buffer(dst->owner[0], dst);
1860 return AVERROR(ENOMEM);
1868 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1870 return ff_get_format(avctx, fmt);
1873 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
1875 f->owner[0] = f->owner[1] = avctx;
1876 return ff_get_buffer(avctx, f->f, flags);
1879 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
1882 av_frame_unref(f->f);
1885 void ff_thread_finish_setup(AVCodecContext *avctx)
1889 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1893 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1897 int ff_thread_can_start_frame(AVCodecContext *avctx)
1902 int ff_alloc_entries(AVCodecContext *avctx, int count)
1907 void ff_reset_entries(AVCodecContext *avctx)
1911 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1915 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1921 int avcodec_is_open(AVCodecContext *s)
1923 return !!s->internal;
1926 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1931 ret = av_bprint_finalize(buf, &str);
1934 if (!av_bprint_is_complete(buf)) {
1936 return AVERROR(ENOMEM);
1939 avctx->extradata = str;
1940 /* Note: the string is NUL terminated (so extradata can be read as a
1941 * string), but the ending character is not accounted in the size (in
1942 * binary formats you are likely not supposed to mux that character). When
1943 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1945 avctx->extradata_size = buf->len;
1949 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1951 uint32_t *av_restrict state)
1955 av_assert0(p <= end);
1959 for (i = 0; i < 3; i++) {
1960 uint32_t tmp = *state << 8;
1961 *state = tmp + *(p++);
1962 if (tmp == 0x100 || p == end)
1967 if (p[-1] > 1 ) p += 3;
1968 else if (p[-2] ) p += 2;
1969 else if (p[-3]|(p[-1]-1)) p++;
1976 p = FFMIN(p, end) - 4;
1977 *state = AV_RB32(p);
1982 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
1984 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1989 *size = sizeof(*props);
1991 props->vbv_delay = UINT64_MAX;
1996 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
1998 AVPacketSideData *tmp;
1999 AVCPBProperties *props;
2003 for (i = 0; i < avctx->nb_coded_side_data; i++)
2004 if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
2005 return (AVCPBProperties *)avctx->coded_side_data[i].data;
2007 props = av_cpb_properties_alloc(&size);
2011 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2017 avctx->coded_side_data = tmp;
2018 avctx->nb_coded_side_data++;
2020 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2021 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2022 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2027 static void codec_parameters_reset(AVCodecParameters *par)
2029 av_freep(&par->extradata);
2031 memset(par, 0, sizeof(*par));
2033 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2034 par->codec_id = AV_CODEC_ID_NONE;
2036 par->field_order = AV_FIELD_UNKNOWN;
2037 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2038 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2039 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2040 par->color_space = AVCOL_SPC_UNSPECIFIED;
2041 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2042 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2043 par->profile = FF_PROFILE_UNKNOWN;
2044 par->level = FF_LEVEL_UNKNOWN;
2047 AVCodecParameters *avcodec_parameters_alloc(void)
2049 AVCodecParameters *par = av_mallocz(sizeof(*par));
2053 codec_parameters_reset(par);
2057 void avcodec_parameters_free(AVCodecParameters **ppar)
2059 AVCodecParameters *par = *ppar;
2063 codec_parameters_reset(par);
2068 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2070 codec_parameters_reset(dst);
2071 memcpy(dst, src, sizeof(*dst));
2073 dst->extradata = NULL;
2074 dst->extradata_size = 0;
2075 if (src->extradata) {
2076 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2077 if (!dst->extradata)
2078 return AVERROR(ENOMEM);
2079 memcpy(dst->extradata, src->extradata, src->extradata_size);
2080 dst->extradata_size = src->extradata_size;
2086 int avcodec_parameters_from_context(AVCodecParameters *par,
2087 const AVCodecContext *codec)
2089 codec_parameters_reset(par);
2091 par->codec_type = codec->codec_type;
2092 par->codec_id = codec->codec_id;
2093 par->codec_tag = codec->codec_tag;
2095 par->bit_rate = codec->bit_rate;
2096 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2097 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2098 par->profile = codec->profile;
2099 par->level = codec->level;
2101 switch (par->codec_type) {
2102 case AVMEDIA_TYPE_VIDEO:
2103 par->format = codec->pix_fmt;
2104 par->width = codec->width;
2105 par->height = codec->height;
2106 par->field_order = codec->field_order;
2107 par->color_range = codec->color_range;
2108 par->color_primaries = codec->color_primaries;
2109 par->color_trc = codec->color_trc;
2110 par->color_space = codec->colorspace;
2111 par->chroma_location = codec->chroma_sample_location;
2112 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2113 par->video_delay = codec->has_b_frames;
2115 case AVMEDIA_TYPE_AUDIO:
2116 par->format = codec->sample_fmt;
2117 par->channel_layout = codec->channel_layout;
2118 par->channels = codec->channels;
2119 par->sample_rate = codec->sample_rate;
2120 par->block_align = codec->block_align;
2121 par->frame_size = codec->frame_size;
2122 par->initial_padding = codec->initial_padding;
2123 par->trailing_padding = codec->trailing_padding;
2124 par->seek_preroll = codec->seek_preroll;
2126 case AVMEDIA_TYPE_SUBTITLE:
2127 par->width = codec->width;
2128 par->height = codec->height;
2132 if (codec->extradata) {
2133 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2134 if (!par->extradata)
2135 return AVERROR(ENOMEM);
2136 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2137 par->extradata_size = codec->extradata_size;
2143 int avcodec_parameters_to_context(AVCodecContext *codec,
2144 const AVCodecParameters *par)
2146 codec->codec_type = par->codec_type;
2147 codec->codec_id = par->codec_id;
2148 codec->codec_tag = par->codec_tag;
2150 codec->bit_rate = par->bit_rate;
2151 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2152 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2153 codec->profile = par->profile;
2154 codec->level = par->level;
2156 switch (par->codec_type) {
2157 case AVMEDIA_TYPE_VIDEO:
2158 codec->pix_fmt = par->format;
2159 codec->width = par->width;
2160 codec->height = par->height;
2161 codec->field_order = par->field_order;
2162 codec->color_range = par->color_range;
2163 codec->color_primaries = par->color_primaries;
2164 codec->color_trc = par->color_trc;
2165 codec->colorspace = par->color_space;
2166 codec->chroma_sample_location = par->chroma_location;
2167 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2168 codec->has_b_frames = par->video_delay;
2170 case AVMEDIA_TYPE_AUDIO:
2171 codec->sample_fmt = par->format;
2172 codec->channel_layout = par->channel_layout;
2173 codec->channels = par->channels;
2174 codec->sample_rate = par->sample_rate;
2175 codec->block_align = par->block_align;
2176 codec->frame_size = par->frame_size;
2178 codec->initial_padding = par->initial_padding;
2179 codec->trailing_padding = par->trailing_padding;
2180 codec->seek_preroll = par->seek_preroll;
2182 case AVMEDIA_TYPE_SUBTITLE:
2183 codec->width = par->width;
2184 codec->height = par->height;
2188 if (par->extradata) {
2189 av_freep(&codec->extradata);
2190 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2191 if (!codec->extradata)
2192 return AVERROR(ENOMEM);
2193 memcpy(codec->extradata, par->extradata, par->extradata_size);
2194 codec->extradata_size = par->extradata_size;
2200 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2201 void **data, size_t *sei_size)
2203 AVFrameSideData *side_data = NULL;
2207 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2214 *sei_size = side_data->size + 11;
2215 *data = av_mallocz(*sei_size + prefix_len);
2217 return AVERROR(ENOMEM);
2218 sei_data = (uint8_t*)*data + prefix_len;
2226 * 'GA94' is standard in North America for ATSC, but hard coding
2227 * this style may not be the right thing to do -- other formats
2228 * do exist. This information is not available in the side_data
2229 * so we are going with this right now.
2231 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2233 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2236 memcpy(sei_data + 10, side_data->data, side_data->size);
2238 sei_data[side_data->size+10] = 255;
2243 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2245 AVRational framerate = avctx->framerate;
2246 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2249 if (!(framerate.num && framerate.den))
2250 framerate = av_inv_q(avctx->time_base);
2251 if (!(framerate.num && framerate.den))
2254 if (!bits_per_coded_sample) {
2255 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2256 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2258 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2259 framerate.num / framerate.den;
2264 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2265 const int * array_valid_values, int default_value)
2270 ref_val = array_valid_values[i];
2271 if (ref_val == INT_MAX)
2277 /* val is not a valid value */
2278 av_log(ctx, AV_LOG_DEBUG,
2279 "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2280 return default_value;