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/atomic.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/bprint.h"
34 #include "libavutil/channel_layout.h"
35 #include "libavutil/crc.h"
36 #include "libavutil/frame.h"
37 #include "libavutil/hwcontext.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/mem_internal.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/imgutils.h"
43 #include "libavutil/samplefmt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/thread.h"
48 #include "libavutil/opt.h"
50 #include "mpegvideo.h"
52 #include "frame_thread_encoder.h"
55 #include "bytestream.h"
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
68 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
69 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
71 void * volatile * mutex = arg;
79 pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
81 return AVERROR(ENOMEM);
82 if ((err = pthread_mutex_init(tmp, NULL))) {
86 if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
87 pthread_mutex_destroy(tmp);
92 if ((err = pthread_mutex_lock(*mutex)))
97 if ((err = pthread_mutex_unlock(*mutex)))
101 case AV_LOCK_DESTROY:
103 pthread_mutex_destroy(*mutex);
105 avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
110 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
112 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
116 volatile int ff_avcodec_locked;
117 static int volatile entangled_thread_counter = 0;
118 static void *codec_mutex;
119 static void *avformat_mutex;
121 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
124 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
129 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
130 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
133 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
136 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
141 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
142 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
145 /* encoder management */
146 static AVCodec *first_avcodec = NULL;
147 static AVCodec **last_avcodec = &first_avcodec;
149 AVCodec *av_codec_next(const AVCodec *c)
154 return first_avcodec;
157 static av_cold void avcodec_init(void)
159 static int initialized = 0;
161 if (initialized != 0)
166 ff_me_cmp_init_static();
169 int av_codec_is_encoder(const AVCodec *codec)
171 return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
174 int av_codec_is_decoder(const AVCodec *codec)
176 return codec && (codec->decode || codec->receive_frame);
179 av_cold void avcodec_register(AVCodec *codec)
186 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
188 last_avcodec = &codec->next;
190 if (codec->init_static_data)
191 codec->init_static_data(codec);
194 int ff_set_dimensions(AVCodecContext *s, int width, int height)
196 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
201 s->coded_width = width;
202 s->coded_height = height;
203 s->width = AV_CEIL_RSHIFT(width, s->lowres);
204 s->height = AV_CEIL_RSHIFT(height, s->lowres);
209 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
211 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
214 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
216 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
219 avctx->sample_aspect_ratio = sar;
224 int ff_side_data_update_matrix_encoding(AVFrame *frame,
225 enum AVMatrixEncoding matrix_encoding)
227 AVFrameSideData *side_data;
228 enum AVMatrixEncoding *data;
230 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
232 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
233 sizeof(enum AVMatrixEncoding));
236 return AVERROR(ENOMEM);
238 data = (enum AVMatrixEncoding*)side_data->data;
239 *data = matrix_encoding;
244 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
245 int linesize_align[AV_NUM_DATA_POINTERS])
250 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
253 w_align = 1 << desc->log2_chroma_w;
254 h_align = 1 << desc->log2_chroma_h;
257 switch (s->pix_fmt) {
258 case AV_PIX_FMT_YUV420P:
259 case AV_PIX_FMT_YUYV422:
260 case AV_PIX_FMT_YVYU422:
261 case AV_PIX_FMT_UYVY422:
262 case AV_PIX_FMT_YUV422P:
263 case AV_PIX_FMT_YUV440P:
264 case AV_PIX_FMT_YUV444P:
265 case AV_PIX_FMT_GBRP:
266 case AV_PIX_FMT_GBRAP:
267 case AV_PIX_FMT_GRAY8:
268 case AV_PIX_FMT_GRAY16BE:
269 case AV_PIX_FMT_GRAY16LE:
270 case AV_PIX_FMT_YUVJ420P:
271 case AV_PIX_FMT_YUVJ422P:
272 case AV_PIX_FMT_YUVJ440P:
273 case AV_PIX_FMT_YUVJ444P:
274 case AV_PIX_FMT_YUVA420P:
275 case AV_PIX_FMT_YUVA422P:
276 case AV_PIX_FMT_YUVA444P:
277 case AV_PIX_FMT_YUV420P9LE:
278 case AV_PIX_FMT_YUV420P9BE:
279 case AV_PIX_FMT_YUV420P10LE:
280 case AV_PIX_FMT_YUV420P10BE:
281 case AV_PIX_FMT_YUV420P12LE:
282 case AV_PIX_FMT_YUV420P12BE:
283 case AV_PIX_FMT_YUV420P14LE:
284 case AV_PIX_FMT_YUV420P14BE:
285 case AV_PIX_FMT_YUV420P16LE:
286 case AV_PIX_FMT_YUV420P16BE:
287 case AV_PIX_FMT_YUVA420P9LE:
288 case AV_PIX_FMT_YUVA420P9BE:
289 case AV_PIX_FMT_YUVA420P10LE:
290 case AV_PIX_FMT_YUVA420P10BE:
291 case AV_PIX_FMT_YUVA420P16LE:
292 case AV_PIX_FMT_YUVA420P16BE:
293 case AV_PIX_FMT_YUV422P9LE:
294 case AV_PIX_FMT_YUV422P9BE:
295 case AV_PIX_FMT_YUV422P10LE:
296 case AV_PIX_FMT_YUV422P10BE:
297 case AV_PIX_FMT_YUV422P12LE:
298 case AV_PIX_FMT_YUV422P12BE:
299 case AV_PIX_FMT_YUV422P14LE:
300 case AV_PIX_FMT_YUV422P14BE:
301 case AV_PIX_FMT_YUV422P16LE:
302 case AV_PIX_FMT_YUV422P16BE:
303 case AV_PIX_FMT_YUVA422P9LE:
304 case AV_PIX_FMT_YUVA422P9BE:
305 case AV_PIX_FMT_YUVA422P10LE:
306 case AV_PIX_FMT_YUVA422P10BE:
307 case AV_PIX_FMT_YUVA422P16LE:
308 case AV_PIX_FMT_YUVA422P16BE:
309 case AV_PIX_FMT_YUV440P10LE:
310 case AV_PIX_FMT_YUV440P10BE:
311 case AV_PIX_FMT_YUV440P12LE:
312 case AV_PIX_FMT_YUV440P12BE:
313 case AV_PIX_FMT_YUV444P9LE:
314 case AV_PIX_FMT_YUV444P9BE:
315 case AV_PIX_FMT_YUV444P10LE:
316 case AV_PIX_FMT_YUV444P10BE:
317 case AV_PIX_FMT_YUV444P12LE:
318 case AV_PIX_FMT_YUV444P12BE:
319 case AV_PIX_FMT_YUV444P14LE:
320 case AV_PIX_FMT_YUV444P14BE:
321 case AV_PIX_FMT_YUV444P16LE:
322 case AV_PIX_FMT_YUV444P16BE:
323 case AV_PIX_FMT_YUVA444P9LE:
324 case AV_PIX_FMT_YUVA444P9BE:
325 case AV_PIX_FMT_YUVA444P10LE:
326 case AV_PIX_FMT_YUVA444P10BE:
327 case AV_PIX_FMT_YUVA444P16LE:
328 case AV_PIX_FMT_YUVA444P16BE:
329 case AV_PIX_FMT_GBRP9LE:
330 case AV_PIX_FMT_GBRP9BE:
331 case AV_PIX_FMT_GBRP10LE:
332 case AV_PIX_FMT_GBRP10BE:
333 case AV_PIX_FMT_GBRP12LE:
334 case AV_PIX_FMT_GBRP12BE:
335 case AV_PIX_FMT_GBRP14LE:
336 case AV_PIX_FMT_GBRP14BE:
337 case AV_PIX_FMT_GBRP16LE:
338 case AV_PIX_FMT_GBRP16BE:
339 case AV_PIX_FMT_GBRAP12LE:
340 case AV_PIX_FMT_GBRAP12BE:
341 case AV_PIX_FMT_GBRAP16LE:
342 case AV_PIX_FMT_GBRAP16BE:
343 w_align = 16; //FIXME assume 16 pixel per macroblock
344 h_align = 16 * 2; // interlaced needs 2 macroblocks height
346 case AV_PIX_FMT_YUV411P:
347 case AV_PIX_FMT_YUVJ411P:
348 case AV_PIX_FMT_UYYVYY411:
352 case AV_PIX_FMT_YUV410P:
353 if (s->codec_id == AV_CODEC_ID_SVQ1) {
358 case AV_PIX_FMT_RGB555:
359 if (s->codec_id == AV_CODEC_ID_RPZA) {
363 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
368 case AV_PIX_FMT_PAL8:
369 case AV_PIX_FMT_BGR8:
370 case AV_PIX_FMT_RGB8:
371 if (s->codec_id == AV_CODEC_ID_SMC ||
372 s->codec_id == AV_CODEC_ID_CINEPAK) {
376 if (s->codec_id == AV_CODEC_ID_JV ||
377 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
382 case AV_PIX_FMT_BGR24:
383 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
384 (s->codec_id == AV_CODEC_ID_ZLIB)) {
389 case AV_PIX_FMT_RGB24:
390 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
399 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
400 w_align = FFMAX(w_align, 8);
403 *width = FFALIGN(*width, w_align);
404 *height = FFALIGN(*height, h_align);
405 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
406 // some of the optimized chroma MC reads one line too much
407 // which is also done in mpeg decoders with lowres > 0
410 // H.264 uses edge emulation for out of frame motion vectors, for this
411 // it requires a temporary area large enough to hold a 21x21 block,
412 // increasing witdth ensure that the temporary area is large enough,
413 // the next rounded up width is 32
414 *width = FFMAX(*width, 32);
417 for (i = 0; i < 4; i++)
418 linesize_align[i] = STRIDE_ALIGN;
421 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
423 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
424 int chroma_shift = desc->log2_chroma_w;
425 int linesize_align[AV_NUM_DATA_POINTERS];
428 avcodec_align_dimensions2(s, width, height, linesize_align);
429 align = FFMAX(linesize_align[0], linesize_align[3]);
430 linesize_align[1] <<= chroma_shift;
431 linesize_align[2] <<= chroma_shift;
432 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
433 *width = FFALIGN(*width, align);
436 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
438 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
439 return AVERROR(EINVAL);
442 *xpos = (pos&1) * 128;
443 *ypos = ((pos>>1)^(pos<4)) * 128;
448 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
452 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
453 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
456 return AVCHROMA_LOC_UNSPECIFIED;
459 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
460 enum AVSampleFormat sample_fmt, const uint8_t *buf,
461 int buf_size, int align)
463 int ch, planar, needed_size, ret = 0;
465 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
466 frame->nb_samples, sample_fmt,
468 if (buf_size < needed_size)
469 return AVERROR(EINVAL);
471 planar = av_sample_fmt_is_planar(sample_fmt);
472 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
473 if (!(frame->extended_data = av_mallocz_array(nb_channels,
474 sizeof(*frame->extended_data))))
475 return AVERROR(ENOMEM);
477 frame->extended_data = frame->data;
480 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
481 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
482 sample_fmt, align)) < 0) {
483 if (frame->extended_data != frame->data)
484 av_freep(&frame->extended_data);
487 if (frame->extended_data != frame->data) {
488 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
489 frame->data[ch] = frame->extended_data[ch];
495 void ff_color_frame(AVFrame *frame, const int c[4])
497 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
500 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
502 for (p = 0; p<desc->nb_components; p++) {
503 uint8_t *dst = frame->data[p];
504 int is_chroma = p == 1 || p == 2;
505 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
506 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
507 for (y = 0; y < height; y++) {
508 if (desc->comp[0].depth >= 9) {
509 for (x = 0; x<bytes; x++)
510 ((uint16_t*)dst)[x] = c[p];
512 memset(dst, c[p], bytes);
513 dst += frame->linesize[p];
518 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
522 for (i = 0; i < count; i++) {
523 int r = func(c, (char *)arg + i * size);
531 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
535 for (i = 0; i < count; i++) {
536 int r = func(c, arg, i, 0);
544 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
547 while (tags->pix_fmt >= 0) {
548 if (tags->fourcc == fourcc)
549 return tags->pix_fmt;
552 return AV_PIX_FMT_NONE;
555 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
556 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
557 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
558 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
559 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
561 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
563 return codec->properties;
566 int av_codec_get_max_lowres(const AVCodec *codec)
568 return codec->max_lowres;
571 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
572 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
575 static int64_t get_bit_rate(AVCodecContext *ctx)
580 switch (ctx->codec_type) {
581 case AVMEDIA_TYPE_VIDEO:
582 case AVMEDIA_TYPE_DATA:
583 case AVMEDIA_TYPE_SUBTITLE:
584 case AVMEDIA_TYPE_ATTACHMENT:
585 bit_rate = ctx->bit_rate;
587 case AVMEDIA_TYPE_AUDIO:
588 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
589 bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
598 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
602 ff_unlock_avcodec(codec);
604 ret = avcodec_open2(avctx, codec, options);
606 ff_lock_avcodec(avctx, codec);
610 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
613 AVDictionary *tmp = NULL;
614 const AVPixFmtDescriptor *pixdesc;
616 if (avcodec_is_open(avctx))
619 if ((!codec && !avctx->codec)) {
620 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
621 return AVERROR(EINVAL);
623 if ((codec && avctx->codec && codec != avctx->codec)) {
624 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
625 "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
626 return AVERROR(EINVAL);
629 codec = avctx->codec;
631 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
632 return AVERROR(EINVAL);
635 av_dict_copy(&tmp, *options, 0);
637 ret = ff_lock_avcodec(avctx, codec);
641 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
642 if (!avctx->internal) {
643 ret = AVERROR(ENOMEM);
647 avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
648 if (!avctx->internal->pool) {
649 ret = AVERROR(ENOMEM);
653 avctx->internal->to_free = av_frame_alloc();
654 if (!avctx->internal->to_free) {
655 ret = AVERROR(ENOMEM);
659 avctx->internal->compat_decode_frame = av_frame_alloc();
660 if (!avctx->internal->compat_decode_frame) {
661 ret = AVERROR(ENOMEM);
665 avctx->internal->buffer_frame = av_frame_alloc();
666 if (!avctx->internal->buffer_frame) {
667 ret = AVERROR(ENOMEM);
671 avctx->internal->buffer_pkt = av_packet_alloc();
672 if (!avctx->internal->buffer_pkt) {
673 ret = AVERROR(ENOMEM);
677 avctx->internal->ds.in_pkt = av_packet_alloc();
678 if (!avctx->internal->ds.in_pkt) {
679 ret = AVERROR(ENOMEM);
683 avctx->internal->last_pkt_props = av_packet_alloc();
684 if (!avctx->internal->last_pkt_props) {
685 ret = AVERROR(ENOMEM);
689 avctx->internal->skip_samples_multiplier = 1;
691 if (codec->priv_data_size > 0) {
692 if (!avctx->priv_data) {
693 avctx->priv_data = av_mallocz(codec->priv_data_size);
694 if (!avctx->priv_data) {
695 ret = AVERROR(ENOMEM);
698 if (codec->priv_class) {
699 *(const AVClass **)avctx->priv_data = codec->priv_class;
700 av_opt_set_defaults(avctx->priv_data);
703 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
706 avctx->priv_data = NULL;
708 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
711 if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
712 av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
713 ret = AVERROR(EINVAL);
717 // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
718 if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
719 (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
720 if (avctx->coded_width && avctx->coded_height)
721 ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
722 else if (avctx->width && avctx->height)
723 ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
728 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
729 && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
730 || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
731 av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
732 ff_set_dimensions(avctx, 0, 0);
735 if (avctx->width > 0 && avctx->height > 0) {
736 if (av_image_check_sar(avctx->width, avctx->height,
737 avctx->sample_aspect_ratio) < 0) {
738 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
739 avctx->sample_aspect_ratio.num,
740 avctx->sample_aspect_ratio.den);
741 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
745 /* if the decoder init function was already called previously,
746 * free the already allocated subtitle_header before overwriting it */
747 if (av_codec_is_decoder(codec))
748 av_freep(&avctx->subtitle_header);
750 if (avctx->channels > FF_SANE_NB_CHANNELS) {
751 ret = AVERROR(EINVAL);
755 avctx->codec = codec;
756 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
757 avctx->codec_id == AV_CODEC_ID_NONE) {
758 avctx->codec_type = codec->type;
759 avctx->codec_id = codec->id;
761 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
762 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
763 av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
764 ret = AVERROR(EINVAL);
767 avctx->frame_number = 0;
768 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
770 if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
771 avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
772 const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
774 av_log(avctx, AV_LOG_ERROR,
775 "The %s '%s' is experimental but experimental codecs are not enabled, "
776 "add '-strict %d' if you want to use it.\n",
777 codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
778 codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
779 if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
780 av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
781 codec_string, codec2->name);
782 ret = AVERROR_EXPERIMENTAL;
786 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
787 (!avctx->time_base.num || !avctx->time_base.den)) {
788 avctx->time_base.num = 1;
789 avctx->time_base.den = avctx->sample_rate;
793 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
795 if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
796 ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
797 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
798 ff_lock_avcodec(avctx, codec);
804 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
805 ret = ff_thread_init(avctx);
810 if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
811 avctx->thread_count = 1;
813 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
814 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
815 avctx->codec->max_lowres);
816 avctx->lowres = avctx->codec->max_lowres;
819 if (av_codec_is_encoder(avctx->codec)) {
821 #if FF_API_CODED_FRAME
822 FF_DISABLE_DEPRECATION_WARNINGS
823 avctx->coded_frame = av_frame_alloc();
824 if (!avctx->coded_frame) {
825 ret = AVERROR(ENOMEM);
828 FF_ENABLE_DEPRECATION_WARNINGS
831 if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
832 av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
833 ret = AVERROR(EINVAL);
837 if (avctx->codec->sample_fmts) {
838 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
839 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
841 if (avctx->channels == 1 &&
842 av_get_planar_sample_fmt(avctx->sample_fmt) ==
843 av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
844 avctx->sample_fmt = avctx->codec->sample_fmts[i];
848 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
850 snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
851 av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
852 (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
853 ret = AVERROR(EINVAL);
857 if (avctx->codec->pix_fmts) {
858 for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
859 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
861 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
862 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
863 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
865 snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
866 av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
867 (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
868 ret = AVERROR(EINVAL);
871 if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
872 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
873 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
874 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
875 avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
876 avctx->color_range = AVCOL_RANGE_JPEG;
878 if (avctx->codec->supported_samplerates) {
879 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
880 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
882 if (avctx->codec->supported_samplerates[i] == 0) {
883 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
885 ret = AVERROR(EINVAL);
889 if (avctx->sample_rate < 0) {
890 av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
892 ret = AVERROR(EINVAL);
895 if (avctx->codec->channel_layouts) {
896 if (!avctx->channel_layout) {
897 av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
899 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
900 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
902 if (avctx->codec->channel_layouts[i] == 0) {
904 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
905 av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
906 ret = AVERROR(EINVAL);
911 if (avctx->channel_layout && avctx->channels) {
912 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
913 if (channels != avctx->channels) {
915 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
916 av_log(avctx, AV_LOG_ERROR,
917 "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
918 buf, channels, avctx->channels);
919 ret = AVERROR(EINVAL);
922 } else if (avctx->channel_layout) {
923 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
925 if (avctx->channels < 0) {
926 av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
928 ret = AVERROR(EINVAL);
931 if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
932 pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
933 if ( avctx->bits_per_raw_sample < 0
934 || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
935 av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
936 avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
937 avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
939 if (avctx->width <= 0 || avctx->height <= 0) {
940 av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
941 ret = AVERROR(EINVAL);
945 if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
946 && avctx->bit_rate>0 && avctx->bit_rate<1000) {
947 av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
950 if (!avctx->rc_initial_buffer_occupancy)
951 avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
953 if (avctx->ticks_per_frame && avctx->time_base.num &&
954 avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
955 av_log(avctx, AV_LOG_ERROR,
956 "ticks_per_frame %d too large for the timebase %d/%d.",
957 avctx->ticks_per_frame,
958 avctx->time_base.num,
959 avctx->time_base.den);
963 if (avctx->hw_frames_ctx) {
964 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
965 if (frames_ctx->format != avctx->pix_fmt) {
966 av_log(avctx, AV_LOG_ERROR,
967 "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
968 ret = AVERROR(EINVAL);
971 if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
972 avctx->sw_pix_fmt != frames_ctx->sw_format) {
973 av_log(avctx, AV_LOG_ERROR,
974 "Mismatching AVCodecContext.sw_pix_fmt (%s) "
975 "and AVHWFramesContext.sw_format (%s)\n",
976 av_get_pix_fmt_name(avctx->sw_pix_fmt),
977 av_get_pix_fmt_name(frames_ctx->sw_format));
978 ret = AVERROR(EINVAL);
981 avctx->sw_pix_fmt = frames_ctx->sw_format;
985 avctx->pts_correction_num_faulty_pts =
986 avctx->pts_correction_num_faulty_dts = 0;
987 avctx->pts_correction_last_pts =
988 avctx->pts_correction_last_dts = INT64_MIN;
990 if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
991 && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
992 av_log(avctx, AV_LOG_WARNING,
993 "gray decoding requested but not enabled at configuration time\n");
995 if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
996 || avctx->internal->frame_thread_encoder)) {
997 ret = avctx->codec->init(avctx);
1005 if (av_codec_is_decoder(avctx->codec)) {
1006 if (!avctx->bit_rate)
1007 avctx->bit_rate = get_bit_rate(avctx);
1008 /* validate channel layout from the decoder */
1009 if (avctx->channel_layout) {
1010 int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1011 if (!avctx->channels)
1012 avctx->channels = channels;
1013 else if (channels != avctx->channels) {
1015 av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1016 av_log(avctx, AV_LOG_WARNING,
1017 "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1018 "ignoring specified channel layout\n",
1019 buf, channels, avctx->channels);
1020 avctx->channel_layout = 0;
1023 if (avctx->channels && avctx->channels < 0 ||
1024 avctx->channels > FF_SANE_NB_CHANNELS) {
1025 ret = AVERROR(EINVAL);
1028 if (avctx->sub_charenc) {
1029 if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1030 av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1031 "supported with subtitles codecs\n");
1032 ret = AVERROR(EINVAL);
1034 } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1035 av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1036 "subtitles character encoding will be ignored\n",
1037 avctx->codec_descriptor->name);
1038 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
1040 /* input character encoding is set for a text based subtitle
1041 * codec at this point */
1042 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
1043 avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
1045 if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
1047 iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1048 if (cd == (iconv_t)-1) {
1049 ret = AVERROR(errno);
1050 av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1051 "with input character encoding \"%s\"\n", avctx->sub_charenc);
1056 av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1057 "conversion needs a libavcodec built with iconv support "
1058 "for this codec\n");
1059 ret = AVERROR(ENOSYS);
1066 #if FF_API_AVCTX_TIMEBASE
1067 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1068 avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1071 if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1072 av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1076 ff_unlock_avcodec(codec);
1078 av_dict_free(options);
1085 (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1086 avctx->codec->close(avctx);
1088 if (codec->priv_class && codec->priv_data_size)
1089 av_opt_free(avctx->priv_data);
1092 #if FF_API_CODED_FRAME
1093 FF_DISABLE_DEPRECATION_WARNINGS
1094 av_frame_free(&avctx->coded_frame);
1095 FF_ENABLE_DEPRECATION_WARNINGS
1099 av_freep(&avctx->priv_data);
1100 if (avctx->internal) {
1101 av_frame_free(&avctx->internal->to_free);
1102 av_frame_free(&avctx->internal->compat_decode_frame);
1103 av_frame_free(&avctx->internal->buffer_frame);
1104 av_packet_free(&avctx->internal->buffer_pkt);
1105 av_packet_free(&avctx->internal->last_pkt_props);
1107 av_packet_free(&avctx->internal->ds.in_pkt);
1109 av_freep(&avctx->internal->pool);
1111 av_freep(&avctx->internal);
1112 avctx->codec = NULL;
1116 void avsubtitle_free(AVSubtitle *sub)
1120 for (i = 0; i < sub->num_rects; i++) {
1121 av_freep(&sub->rects[i]->data[0]);
1122 av_freep(&sub->rects[i]->data[1]);
1123 av_freep(&sub->rects[i]->data[2]);
1124 av_freep(&sub->rects[i]->data[3]);
1125 av_freep(&sub->rects[i]->text);
1126 av_freep(&sub->rects[i]->ass);
1127 av_freep(&sub->rects[i]);
1130 av_freep(&sub->rects);
1132 memset(sub, 0, sizeof(AVSubtitle));
1135 av_cold int avcodec_close(AVCodecContext *avctx)
1142 if (avcodec_is_open(avctx)) {
1143 FramePool *pool = avctx->internal->pool;
1144 if (CONFIG_FRAME_THREAD_ENCODER &&
1145 avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1146 ff_frame_thread_encoder_free(avctx);
1148 if (HAVE_THREADS && avctx->internal->thread_ctx)
1149 ff_thread_free(avctx);
1150 if (avctx->codec && avctx->codec->close)
1151 avctx->codec->close(avctx);
1152 avctx->internal->byte_buffer_size = 0;
1153 av_freep(&avctx->internal->byte_buffer);
1154 av_frame_free(&avctx->internal->to_free);
1155 av_frame_free(&avctx->internal->compat_decode_frame);
1156 av_frame_free(&avctx->internal->buffer_frame);
1157 av_packet_free(&avctx->internal->buffer_pkt);
1158 av_packet_free(&avctx->internal->last_pkt_props);
1160 av_packet_free(&avctx->internal->ds.in_pkt);
1162 for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1163 av_buffer_pool_uninit(&pool->pools[i]);
1164 av_freep(&avctx->internal->pool);
1166 if (avctx->hwaccel && avctx->hwaccel->uninit)
1167 avctx->hwaccel->uninit(avctx);
1168 av_freep(&avctx->internal->hwaccel_priv_data);
1170 ff_decode_bsfs_uninit(avctx);
1172 av_freep(&avctx->internal);
1175 for (i = 0; i < avctx->nb_coded_side_data; i++)
1176 av_freep(&avctx->coded_side_data[i].data);
1177 av_freep(&avctx->coded_side_data);
1178 avctx->nb_coded_side_data = 0;
1180 av_buffer_unref(&avctx->hw_frames_ctx);
1181 av_buffer_unref(&avctx->hw_device_ctx);
1183 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1184 av_opt_free(avctx->priv_data);
1186 av_freep(&avctx->priv_data);
1187 if (av_codec_is_encoder(avctx->codec)) {
1188 av_freep(&avctx->extradata);
1189 #if FF_API_CODED_FRAME
1190 FF_DISABLE_DEPRECATION_WARNINGS
1191 av_frame_free(&avctx->coded_frame);
1192 FF_ENABLE_DEPRECATION_WARNINGS
1195 avctx->codec = NULL;
1196 avctx->active_thread_type = 0;
1201 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
1204 //This is for future deprecatec codec ids, its empty since
1205 //last major bump but will fill up again over time, please don't remove it
1206 default : return id;
1210 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
1212 AVCodec *p, *experimental = NULL;
1214 id= remap_deprecated_codec_id(id);
1216 if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
1218 if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
1225 return experimental;
1228 AVCodec *avcodec_find_encoder(enum AVCodecID id)
1230 return find_encdec(id, 1);
1233 AVCodec *avcodec_find_encoder_by_name(const char *name)
1240 if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
1247 AVCodec *avcodec_find_decoder(enum AVCodecID id)
1249 return find_encdec(id, 0);
1252 AVCodec *avcodec_find_decoder_by_name(const char *name)
1259 if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
1266 const char *avcodec_get_name(enum AVCodecID id)
1268 const AVCodecDescriptor *cd;
1271 if (id == AV_CODEC_ID_NONE)
1273 cd = avcodec_descriptor_get(id);
1276 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1277 codec = avcodec_find_decoder(id);
1280 codec = avcodec_find_encoder(id);
1283 return "unknown_codec";
1286 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1288 int i, len, ret = 0;
1290 #define TAG_PRINT(x) \
1291 (((x) >= '0' && (x) <= '9') || \
1292 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1293 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1295 for (i = 0; i < 4; i++) {
1296 len = snprintf(buf, buf_size,
1297 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1299 buf_size = buf_size > len ? buf_size - len : 0;
1306 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1308 const char *codec_type;
1309 const char *codec_name;
1310 const char *profile = NULL;
1313 AVRational display_aspect_ratio;
1314 const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1316 if (!buf || buf_size <= 0)
1318 codec_type = av_get_media_type_string(enc->codec_type);
1319 codec_name = avcodec_get_name(enc->codec_id);
1320 profile = avcodec_profile_name(enc->codec_id, enc->profile);
1322 snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1324 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1326 if (enc->codec && strcmp(enc->codec->name, codec_name))
1327 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1330 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1331 if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1332 && av_log_get_level() >= AV_LOG_VERBOSE
1334 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1335 ", %d reference frame%s",
1336 enc->refs, enc->refs > 1 ? "s" : "");
1339 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1340 av_fourcc2str(enc->codec_tag), enc->codec_tag);
1342 switch (enc->codec_type) {
1343 case AVMEDIA_TYPE_VIDEO:
1345 char detail[256] = "(";
1347 av_strlcat(buf, separator, buf_size);
1349 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1350 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1351 av_get_pix_fmt_name(enc->pix_fmt));
1352 if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1353 enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
1354 av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1355 if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
1356 av_strlcatf(detail, sizeof(detail), "%s, ",
1357 av_color_range_name(enc->color_range));
1359 if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1360 enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
1361 enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1362 if (enc->colorspace != (int)enc->color_primaries ||
1363 enc->colorspace != (int)enc->color_trc) {
1365 av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1366 av_color_space_name(enc->colorspace),
1367 av_color_primaries_name(enc->color_primaries),
1368 av_color_transfer_name(enc->color_trc));
1370 av_strlcatf(detail, sizeof(detail), "%s, ",
1371 av_get_colorspace_name(enc->colorspace));
1374 if (enc->field_order != AV_FIELD_UNKNOWN) {
1375 const char *field_order = "progressive";
1376 if (enc->field_order == AV_FIELD_TT)
1377 field_order = "top first";
1378 else if (enc->field_order == AV_FIELD_BB)
1379 field_order = "bottom first";
1380 else if (enc->field_order == AV_FIELD_TB)
1381 field_order = "top coded first (swapped)";
1382 else if (enc->field_order == AV_FIELD_BT)
1383 field_order = "bottom coded first (swapped)";
1385 av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1388 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1389 enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
1390 av_strlcatf(detail, sizeof(detail), "%s, ",
1391 av_chroma_location_name(enc->chroma_sample_location));
1393 if (strlen(detail) > 1) {
1394 detail[strlen(detail) - 2] = 0;
1395 av_strlcatf(buf, buf_size, "%s)", detail);
1400 av_strlcat(buf, new_line ? separator : ", ", buf_size);
1402 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1404 enc->width, enc->height);
1406 if (av_log_get_level() >= AV_LOG_VERBOSE &&
1407 (enc->width != enc->coded_width ||
1408 enc->height != enc->coded_height))
1409 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1410 " (%dx%d)", enc->coded_width, enc->coded_height);
1412 if (enc->sample_aspect_ratio.num) {
1413 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1414 enc->width * (int64_t)enc->sample_aspect_ratio.num,
1415 enc->height * (int64_t)enc->sample_aspect_ratio.den,
1417 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1418 " [SAR %d:%d DAR %d:%d]",
1419 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1420 display_aspect_ratio.num, display_aspect_ratio.den);
1422 if (av_log_get_level() >= AV_LOG_DEBUG) {
1423 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1424 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1426 enc->time_base.num / g, enc->time_base.den / g);
1430 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1431 ", q=%d-%d", enc->qmin, enc->qmax);
1433 if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
1434 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1435 ", Closed Captions");
1436 if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
1437 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1441 case AVMEDIA_TYPE_AUDIO:
1442 av_strlcat(buf, separator, buf_size);
1444 if (enc->sample_rate) {
1445 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1446 "%d Hz, ", enc->sample_rate);
1448 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1449 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1450 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1451 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1453 if ( enc->bits_per_raw_sample > 0
1454 && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
1455 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1456 " (%d bit)", enc->bits_per_raw_sample);
1457 if (av_log_get_level() >= AV_LOG_VERBOSE) {
1458 if (enc->initial_padding)
1459 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1460 ", delay %d", enc->initial_padding);
1461 if (enc->trailing_padding)
1462 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1463 ", padding %d", enc->trailing_padding);
1466 case AVMEDIA_TYPE_DATA:
1467 if (av_log_get_level() >= AV_LOG_DEBUG) {
1468 int g = av_gcd(enc->time_base.num, enc->time_base.den);
1470 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1472 enc->time_base.num / g, enc->time_base.den / g);
1475 case AVMEDIA_TYPE_SUBTITLE:
1477 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1478 ", %dx%d", enc->width, enc->height);
1484 if (enc->flags & AV_CODEC_FLAG_PASS1)
1485 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1487 if (enc->flags & AV_CODEC_FLAG_PASS2)
1488 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1491 bitrate = get_bit_rate(enc);
1493 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1494 ", %"PRId64" kb/s", bitrate / 1000);
1495 } else if (enc->rc_max_rate > 0) {
1496 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1497 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1501 const char *av_get_profile_name(const AVCodec *codec, int profile)
1504 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1507 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1508 if (p->profile == profile)
1514 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
1516 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1519 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1522 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1523 if (p->profile == profile)
1529 unsigned avcodec_version(void)
1531 // av_assert0(AV_CODEC_ID_V410==164);
1532 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
1533 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
1534 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
1535 av_assert0(AV_CODEC_ID_SRT==94216);
1536 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
1538 return LIBAVCODEC_VERSION_INT;
1541 const char *avcodec_configuration(void)
1543 return FFMPEG_CONFIGURATION;
1546 const char *avcodec_license(void)
1548 #define LICENSE_PREFIX "libavcodec license: "
1549 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1552 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
1555 case AV_CODEC_ID_8SVX_EXP:
1556 case AV_CODEC_ID_8SVX_FIB:
1557 case AV_CODEC_ID_ADPCM_CT:
1558 case AV_CODEC_ID_ADPCM_IMA_APC:
1559 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1560 case AV_CODEC_ID_ADPCM_IMA_OKI:
1561 case AV_CODEC_ID_ADPCM_IMA_WS:
1562 case AV_CODEC_ID_ADPCM_G722:
1563 case AV_CODEC_ID_ADPCM_YAMAHA:
1564 case AV_CODEC_ID_ADPCM_AICA:
1566 case AV_CODEC_ID_DSD_LSBF:
1567 case AV_CODEC_ID_DSD_MSBF:
1568 case AV_CODEC_ID_DSD_LSBF_PLANAR:
1569 case AV_CODEC_ID_DSD_MSBF_PLANAR:
1570 case AV_CODEC_ID_PCM_ALAW:
1571 case AV_CODEC_ID_PCM_MULAW:
1572 case AV_CODEC_ID_PCM_S8:
1573 case AV_CODEC_ID_PCM_S8_PLANAR:
1574 case AV_CODEC_ID_PCM_U8:
1575 case AV_CODEC_ID_PCM_ZORK:
1576 case AV_CODEC_ID_SDX2_DPCM:
1578 case AV_CODEC_ID_PCM_S16BE:
1579 case AV_CODEC_ID_PCM_S16BE_PLANAR:
1580 case AV_CODEC_ID_PCM_S16LE:
1581 case AV_CODEC_ID_PCM_S16LE_PLANAR:
1582 case AV_CODEC_ID_PCM_U16BE:
1583 case AV_CODEC_ID_PCM_U16LE:
1585 case AV_CODEC_ID_PCM_S24DAUD:
1586 case AV_CODEC_ID_PCM_S24BE:
1587 case AV_CODEC_ID_PCM_S24LE:
1588 case AV_CODEC_ID_PCM_S24LE_PLANAR:
1589 case AV_CODEC_ID_PCM_U24BE:
1590 case AV_CODEC_ID_PCM_U24LE:
1592 case AV_CODEC_ID_PCM_S32BE:
1593 case AV_CODEC_ID_PCM_S32LE:
1594 case AV_CODEC_ID_PCM_S32LE_PLANAR:
1595 case AV_CODEC_ID_PCM_U32BE:
1596 case AV_CODEC_ID_PCM_U32LE:
1597 case AV_CODEC_ID_PCM_F32BE:
1598 case AV_CODEC_ID_PCM_F32LE:
1599 case AV_CODEC_ID_PCM_F24LE:
1600 case AV_CODEC_ID_PCM_F16LE:
1602 case AV_CODEC_ID_PCM_F64BE:
1603 case AV_CODEC_ID_PCM_F64LE:
1604 case AV_CODEC_ID_PCM_S64BE:
1605 case AV_CODEC_ID_PCM_S64LE:
1612 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
1614 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1615 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1616 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1617 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1618 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1619 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1620 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1621 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1622 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1623 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
1624 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1625 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1627 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1628 return AV_CODEC_ID_NONE;
1629 if (be < 0 || be > 1)
1631 return map[fmt][be];
1634 int av_get_bits_per_sample(enum AVCodecID codec_id)
1637 case AV_CODEC_ID_ADPCM_SBPRO_2:
1639 case AV_CODEC_ID_ADPCM_SBPRO_3:
1641 case AV_CODEC_ID_ADPCM_SBPRO_4:
1642 case AV_CODEC_ID_ADPCM_IMA_WAV:
1643 case AV_CODEC_ID_ADPCM_IMA_QT:
1644 case AV_CODEC_ID_ADPCM_SWF:
1645 case AV_CODEC_ID_ADPCM_MS:
1648 return av_get_exact_bits_per_sample(codec_id);
1652 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1653 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1654 uint8_t * extradata, int frame_size, int frame_bytes)
1656 int bps = av_get_exact_bits_per_sample(id);
1657 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1659 /* codecs with an exact constant bits per sample */
1660 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1661 return (frame_bytes * 8LL) / (bps * ch);
1662 bps = bits_per_coded_sample;
1664 /* codecs with a fixed packet duration */
1666 case AV_CODEC_ID_ADPCM_ADX: return 32;
1667 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1668 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1669 case AV_CODEC_ID_AMR_NB:
1670 case AV_CODEC_ID_EVRC:
1671 case AV_CODEC_ID_GSM:
1672 case AV_CODEC_ID_QCELP:
1673 case AV_CODEC_ID_RA_288: return 160;
1674 case AV_CODEC_ID_AMR_WB:
1675 case AV_CODEC_ID_GSM_MS: return 320;
1676 case AV_CODEC_ID_MP1: return 384;
1677 case AV_CODEC_ID_ATRAC1: return 512;
1678 case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1679 case AV_CODEC_ID_ATRAC3P: return 2048;
1680 case AV_CODEC_ID_MP2:
1681 case AV_CODEC_ID_MUSEPACK7: return 1152;
1682 case AV_CODEC_ID_AC3: return 1536;
1686 /* calc from sample rate */
1687 if (id == AV_CODEC_ID_TTA)
1688 return 256 * sr / 245;
1689 else if (id == AV_CODEC_ID_DST)
1690 return 588 * sr / 44100;
1693 /* calc from sample rate and channels */
1694 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1695 return (480 << (sr / 22050)) / ch;
1698 if (id == AV_CODEC_ID_MP3)
1699 return sr <= 24000 ? 576 : 1152;
1703 /* calc from block_align */
1704 if (id == AV_CODEC_ID_SIPR) {
1706 case 20: return 160;
1707 case 19: return 144;
1708 case 29: return 288;
1709 case 37: return 480;
1711 } else if (id == AV_CODEC_ID_ILBC) {
1713 case 38: return 160;
1714 case 50: return 240;
1719 if (frame_bytes > 0) {
1720 /* calc from frame_bytes only */
1721 if (id == AV_CODEC_ID_TRUESPEECH)
1722 return 240 * (frame_bytes / 32);
1723 if (id == AV_CODEC_ID_NELLYMOSER)
1724 return 256 * (frame_bytes / 64);
1725 if (id == AV_CODEC_ID_RA_144)
1726 return 160 * (frame_bytes / 20);
1727 if (id == AV_CODEC_ID_G723_1)
1728 return 240 * (frame_bytes / 24);
1731 /* calc from frame_bytes and bits_per_coded_sample */
1732 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
1733 return frame_bytes * 8 / bps;
1736 if (ch > 0 && ch < INT_MAX/16) {
1737 /* calc from frame_bytes and channels */
1739 case AV_CODEC_ID_ADPCM_AFC:
1740 return frame_bytes / (9 * ch) * 16;
1741 case AV_CODEC_ID_ADPCM_PSX:
1742 case AV_CODEC_ID_ADPCM_DTK:
1743 return frame_bytes / (16 * ch) * 28;
1744 case AV_CODEC_ID_ADPCM_4XM:
1745 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1746 case AV_CODEC_ID_ADPCM_IMA_ISS:
1747 return (frame_bytes - 4 * ch) * 2 / ch;
1748 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1749 return (frame_bytes - 4) * 2 / ch;
1750 case AV_CODEC_ID_ADPCM_IMA_AMV:
1751 return (frame_bytes - 8) * 2 / ch;
1752 case AV_CODEC_ID_ADPCM_THP:
1753 case AV_CODEC_ID_ADPCM_THP_LE:
1755 return frame_bytes * 14 / (8 * ch);
1757 case AV_CODEC_ID_ADPCM_XA:
1758 return (frame_bytes / 128) * 224 / ch;
1759 case AV_CODEC_ID_INTERPLAY_DPCM:
1760 return (frame_bytes - 6 - ch) / ch;
1761 case AV_CODEC_ID_ROQ_DPCM:
1762 return (frame_bytes - 8) / ch;
1763 case AV_CODEC_ID_XAN_DPCM:
1764 return (frame_bytes - 2 * ch) / ch;
1765 case AV_CODEC_ID_MACE3:
1766 return 3 * frame_bytes / ch;
1767 case AV_CODEC_ID_MACE6:
1768 return 6 * frame_bytes / ch;
1769 case AV_CODEC_ID_PCM_LXF:
1770 return 2 * (frame_bytes / (5 * ch));
1771 case AV_CODEC_ID_IAC:
1772 case AV_CODEC_ID_IMC:
1773 return 4 * frame_bytes / ch;
1777 /* calc from frame_bytes, channels, and codec_tag */
1778 if (id == AV_CODEC_ID_SOL_DPCM) {
1780 return frame_bytes / ch;
1782 return frame_bytes * 2 / ch;
1787 /* calc from frame_bytes, channels, and block_align */
1788 int blocks = frame_bytes / ba;
1790 case AV_CODEC_ID_ADPCM_IMA_WAV:
1791 if (bps < 2 || bps > 5)
1793 return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1794 case AV_CODEC_ID_ADPCM_IMA_DK3:
1795 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1796 case AV_CODEC_ID_ADPCM_IMA_DK4:
1797 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1798 case AV_CODEC_ID_ADPCM_IMA_RAD:
1799 return blocks * ((ba - 4 * ch) * 2 / ch);
1800 case AV_CODEC_ID_ADPCM_MS:
1801 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1802 case AV_CODEC_ID_ADPCM_MTAF:
1803 return blocks * (ba - 16) * 2 / ch;
1808 /* calc from frame_bytes, channels, and bits_per_coded_sample */
1810 case AV_CODEC_ID_PCM_DVD:
1813 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
1814 case AV_CODEC_ID_PCM_BLURAY:
1817 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
1818 case AV_CODEC_ID_S302M:
1819 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1825 /* Fall back on using frame_size */
1826 if (frame_size > 1 && frame_bytes)
1829 //For WMA we currently have no other means to calculate duration thus we
1830 //do it here by assuming CBR, which is true for all known cases.
1831 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1832 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1833 return (frame_bytes * 8LL * sr) / bitrate;
1839 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1841 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1842 avctx->channels, avctx->block_align,
1843 avctx->codec_tag, avctx->bits_per_coded_sample,
1844 avctx->bit_rate, avctx->extradata, avctx->frame_size,
1848 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
1850 return get_audio_frame_duration(par->codec_id, par->sample_rate,
1851 par->channels, par->block_align,
1852 par->codec_tag, par->bits_per_coded_sample,
1853 par->bit_rate, par->extradata, par->frame_size,
1858 int ff_thread_init(AVCodecContext *s)
1865 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1879 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1882 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1886 static AVHWAccel *first_hwaccel = NULL;
1887 static AVHWAccel **last_hwaccel = &first_hwaccel;
1889 void av_register_hwaccel(AVHWAccel *hwaccel)
1891 AVHWAccel **p = last_hwaccel;
1892 hwaccel->next = NULL;
1893 while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
1895 last_hwaccel = &hwaccel->next;
1898 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
1900 return hwaccel ? hwaccel->next : first_hwaccel;
1903 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1906 // There is no good way to rollback a failure to destroy the
1907 // mutex, so we ignore failures.
1908 lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
1909 lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
1912 avformat_mutex = NULL;
1916 void *new_codec_mutex = NULL;
1917 void *new_avformat_mutex = NULL;
1919 if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
1920 return err > 0 ? AVERROR_UNKNOWN : err;
1922 if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
1923 // Ignore failures to destroy the newly created mutex.
1924 cb(&new_codec_mutex, AV_LOCK_DESTROY);
1925 return err > 0 ? AVERROR_UNKNOWN : err;
1928 codec_mutex = new_codec_mutex;
1929 avformat_mutex = new_avformat_mutex;
1935 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
1937 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
1941 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
1945 if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) {
1946 av_log(log_ctx, AV_LOG_ERROR,
1947 "Insufficient thread locking. At least %d threads are "
1948 "calling avcodec_open2() at the same time right now.\n",
1949 entangled_thread_counter);
1951 av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
1952 ff_avcodec_locked = 1;
1953 ff_unlock_avcodec(codec);
1954 return AVERROR(EINVAL);
1956 av_assert0(!ff_avcodec_locked);
1957 ff_avcodec_locked = 1;
1961 int ff_unlock_avcodec(const AVCodec *codec)
1963 if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
1966 av_assert0(ff_avcodec_locked);
1967 ff_avcodec_locked = 0;
1968 avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
1970 if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
1977 int avpriv_lock_avformat(void)
1980 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
1986 int avpriv_unlock_avformat(void)
1989 if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
1995 unsigned int avpriv_toupper4(unsigned int x)
1997 return av_toupper(x & 0xFF) +
1998 (av_toupper((x >> 8) & 0xFF) << 8) +
1999 (av_toupper((x >> 16) & 0xFF) << 16) +
2000 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
2003 int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
2007 dst->owner[0] = src->owner[0];
2008 dst->owner[1] = src->owner[1];
2010 ret = av_frame_ref(dst->f, src->f);
2014 av_assert0(!dst->progress);
2016 if (src->progress &&
2017 !(dst->progress = av_buffer_ref(src->progress))) {
2018 ff_thread_release_buffer(dst->owner[0], dst);
2019 return AVERROR(ENOMEM);
2027 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
2029 return ff_get_format(avctx, fmt);
2032 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
2034 f->owner[0] = f->owner[1] = avctx;
2035 return ff_get_buffer(avctx, f->f, flags);
2038 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
2041 av_frame_unref(f->f);
2044 void ff_thread_finish_setup(AVCodecContext *avctx)
2048 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
2052 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
2056 int ff_thread_can_start_frame(AVCodecContext *avctx)
2061 int ff_alloc_entries(AVCodecContext *avctx, int count)
2066 void ff_reset_entries(AVCodecContext *avctx)
2070 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
2074 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
2080 int avcodec_is_open(AVCodecContext *s)
2082 return !!s->internal;
2085 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
2090 ret = av_bprint_finalize(buf, &str);
2093 if (!av_bprint_is_complete(buf)) {
2095 return AVERROR(ENOMEM);
2098 avctx->extradata = str;
2099 /* Note: the string is NUL terminated (so extradata can be read as a
2100 * string), but the ending character is not accounted in the size (in
2101 * binary formats you are likely not supposed to mux that character). When
2102 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
2104 avctx->extradata_size = buf->len;
2108 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
2110 uint32_t *av_restrict state)
2114 av_assert0(p <= end);
2118 for (i = 0; i < 3; i++) {
2119 uint32_t tmp = *state << 8;
2120 *state = tmp + *(p++);
2121 if (tmp == 0x100 || p == end)
2126 if (p[-1] > 1 ) p += 3;
2127 else if (p[-2] ) p += 2;
2128 else if (p[-3]|(p[-1]-1)) p++;
2135 p = FFMIN(p, end) - 4;
2136 *state = AV_RB32(p);
2141 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
2143 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2148 *size = sizeof(*props);
2150 props->vbv_delay = UINT64_MAX;
2155 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
2157 AVPacketSideData *tmp;
2158 AVCPBProperties *props;
2161 props = av_cpb_properties_alloc(&size);
2165 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2171 avctx->coded_side_data = tmp;
2172 avctx->nb_coded_side_data++;
2174 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
2175 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2176 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2181 static void codec_parameters_reset(AVCodecParameters *par)
2183 av_freep(&par->extradata);
2185 memset(par, 0, sizeof(*par));
2187 par->codec_type = AVMEDIA_TYPE_UNKNOWN;
2188 par->codec_id = AV_CODEC_ID_NONE;
2190 par->field_order = AV_FIELD_UNKNOWN;
2191 par->color_range = AVCOL_RANGE_UNSPECIFIED;
2192 par->color_primaries = AVCOL_PRI_UNSPECIFIED;
2193 par->color_trc = AVCOL_TRC_UNSPECIFIED;
2194 par->color_space = AVCOL_SPC_UNSPECIFIED;
2195 par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
2196 par->sample_aspect_ratio = (AVRational){ 0, 1 };
2197 par->profile = FF_PROFILE_UNKNOWN;
2198 par->level = FF_LEVEL_UNKNOWN;
2201 AVCodecParameters *avcodec_parameters_alloc(void)
2203 AVCodecParameters *par = av_mallocz(sizeof(*par));
2207 codec_parameters_reset(par);
2211 void avcodec_parameters_free(AVCodecParameters **ppar)
2213 AVCodecParameters *par = *ppar;
2217 codec_parameters_reset(par);
2222 int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
2224 codec_parameters_reset(dst);
2225 memcpy(dst, src, sizeof(*dst));
2227 dst->extradata = NULL;
2228 dst->extradata_size = 0;
2229 if (src->extradata) {
2230 dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2231 if (!dst->extradata)
2232 return AVERROR(ENOMEM);
2233 memcpy(dst->extradata, src->extradata, src->extradata_size);
2234 dst->extradata_size = src->extradata_size;
2240 int avcodec_parameters_from_context(AVCodecParameters *par,
2241 const AVCodecContext *codec)
2243 codec_parameters_reset(par);
2245 par->codec_type = codec->codec_type;
2246 par->codec_id = codec->codec_id;
2247 par->codec_tag = codec->codec_tag;
2249 par->bit_rate = codec->bit_rate;
2250 par->bits_per_coded_sample = codec->bits_per_coded_sample;
2251 par->bits_per_raw_sample = codec->bits_per_raw_sample;
2252 par->profile = codec->profile;
2253 par->level = codec->level;
2255 switch (par->codec_type) {
2256 case AVMEDIA_TYPE_VIDEO:
2257 par->format = codec->pix_fmt;
2258 par->width = codec->width;
2259 par->height = codec->height;
2260 par->field_order = codec->field_order;
2261 par->color_range = codec->color_range;
2262 par->color_primaries = codec->color_primaries;
2263 par->color_trc = codec->color_trc;
2264 par->color_space = codec->colorspace;
2265 par->chroma_location = codec->chroma_sample_location;
2266 par->sample_aspect_ratio = codec->sample_aspect_ratio;
2267 par->video_delay = codec->has_b_frames;
2269 case AVMEDIA_TYPE_AUDIO:
2270 par->format = codec->sample_fmt;
2271 par->channel_layout = codec->channel_layout;
2272 par->channels = codec->channels;
2273 par->sample_rate = codec->sample_rate;
2274 par->block_align = codec->block_align;
2275 par->frame_size = codec->frame_size;
2276 par->initial_padding = codec->initial_padding;
2277 par->trailing_padding = codec->trailing_padding;
2278 par->seek_preroll = codec->seek_preroll;
2280 case AVMEDIA_TYPE_SUBTITLE:
2281 par->width = codec->width;
2282 par->height = codec->height;
2286 if (codec->extradata) {
2287 par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2288 if (!par->extradata)
2289 return AVERROR(ENOMEM);
2290 memcpy(par->extradata, codec->extradata, codec->extradata_size);
2291 par->extradata_size = codec->extradata_size;
2297 int avcodec_parameters_to_context(AVCodecContext *codec,
2298 const AVCodecParameters *par)
2300 codec->codec_type = par->codec_type;
2301 codec->codec_id = par->codec_id;
2302 codec->codec_tag = par->codec_tag;
2304 codec->bit_rate = par->bit_rate;
2305 codec->bits_per_coded_sample = par->bits_per_coded_sample;
2306 codec->bits_per_raw_sample = par->bits_per_raw_sample;
2307 codec->profile = par->profile;
2308 codec->level = par->level;
2310 switch (par->codec_type) {
2311 case AVMEDIA_TYPE_VIDEO:
2312 codec->pix_fmt = par->format;
2313 codec->width = par->width;
2314 codec->height = par->height;
2315 codec->field_order = par->field_order;
2316 codec->color_range = par->color_range;
2317 codec->color_primaries = par->color_primaries;
2318 codec->color_trc = par->color_trc;
2319 codec->colorspace = par->color_space;
2320 codec->chroma_sample_location = par->chroma_location;
2321 codec->sample_aspect_ratio = par->sample_aspect_ratio;
2322 codec->has_b_frames = par->video_delay;
2324 case AVMEDIA_TYPE_AUDIO:
2325 codec->sample_fmt = par->format;
2326 codec->channel_layout = par->channel_layout;
2327 codec->channels = par->channels;
2328 codec->sample_rate = par->sample_rate;
2329 codec->block_align = par->block_align;
2330 codec->frame_size = par->frame_size;
2332 codec->initial_padding = par->initial_padding;
2333 codec->trailing_padding = par->trailing_padding;
2334 codec->seek_preroll = par->seek_preroll;
2336 case AVMEDIA_TYPE_SUBTITLE:
2337 codec->width = par->width;
2338 codec->height = par->height;
2342 if (par->extradata) {
2343 av_freep(&codec->extradata);
2344 codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
2345 if (!codec->extradata)
2346 return AVERROR(ENOMEM);
2347 memcpy(codec->extradata, par->extradata, par->extradata_size);
2348 codec->extradata_size = par->extradata_size;
2354 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2355 void **data, size_t *sei_size)
2357 AVFrameSideData *side_data = NULL;
2361 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2368 *sei_size = side_data->size + 11;
2369 *data = av_mallocz(*sei_size + prefix_len);
2371 return AVERROR(ENOMEM);
2372 sei_data = (uint8_t*)*data + prefix_len;
2380 * 'GA94' is standard in North America for ATSC, but hard coding
2381 * this style may not be the right thing to do -- other formats
2382 * do exist. This information is not available in the side_data
2383 * so we are going with this right now.
2385 AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2387 sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2390 memcpy(sei_data + 10, side_data->data, side_data->size);
2392 sei_data[side_data->size+10] = 255;
2397 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
2399 AVRational framerate = avctx->framerate;
2400 int bits_per_coded_sample = avctx->bits_per_coded_sample;
2403 if (!(framerate.num && framerate.den))
2404 framerate = av_inv_q(avctx->time_base);
2405 if (!(framerate.num && framerate.den))
2408 if (!bits_per_coded_sample) {
2409 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2410 bits_per_coded_sample = av_get_bits_per_pixel(desc);
2412 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2413 framerate.num / framerate.den;