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/avassert.h"
30 #include "libavutil/avstring.h"
31 #include "libavutil/intreadwrite.h"
32 #include "libavutil/mem_internal.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/imgutils.h"
35 #include "libavutil/pixfmt.h"
46 #include <stdatomic.h>
50 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
53 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
58 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
59 memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
62 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
65 if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
70 if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
71 memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
74 int av_codec_is_encoder(const AVCodec *codec)
76 return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
79 int av_codec_is_decoder(const AVCodec *codec)
81 return codec && (codec->decode || codec->receive_frame);
84 int ff_set_dimensions(AVCodecContext *s, int width, int height)
86 int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
91 s->coded_width = width;
92 s->coded_height = height;
93 s->width = AV_CEIL_RSHIFT(width, s->lowres);
94 s->height = AV_CEIL_RSHIFT(height, s->lowres);
99 int ff_set_sar(AVCodecContext *avctx, AVRational sar)
101 int ret = av_image_check_sar(avctx->width, avctx->height, sar);
104 av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
106 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
109 avctx->sample_aspect_ratio = sar;
114 int ff_side_data_update_matrix_encoding(AVFrame *frame,
115 enum AVMatrixEncoding matrix_encoding)
117 AVFrameSideData *side_data;
118 enum AVMatrixEncoding *data;
120 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
122 side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
123 sizeof(enum AVMatrixEncoding));
126 return AVERROR(ENOMEM);
128 data = (enum AVMatrixEncoding*)side_data->data;
129 *data = matrix_encoding;
134 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
135 int linesize_align[AV_NUM_DATA_POINTERS])
140 AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
143 w_align = 1 << desc->log2_chroma_w;
144 h_align = 1 << desc->log2_chroma_h;
147 switch (s->pix_fmt) {
148 case AV_PIX_FMT_YUV420P:
149 case AV_PIX_FMT_YUYV422:
150 case AV_PIX_FMT_YVYU422:
151 case AV_PIX_FMT_UYVY422:
152 case AV_PIX_FMT_YUV422P:
153 case AV_PIX_FMT_YUV440P:
154 case AV_PIX_FMT_YUV444P:
155 case AV_PIX_FMT_GBRP:
156 case AV_PIX_FMT_GBRAP:
157 case AV_PIX_FMT_GRAY8:
158 case AV_PIX_FMT_GRAY16BE:
159 case AV_PIX_FMT_GRAY16LE:
160 case AV_PIX_FMT_YUVJ420P:
161 case AV_PIX_FMT_YUVJ422P:
162 case AV_PIX_FMT_YUVJ440P:
163 case AV_PIX_FMT_YUVJ444P:
164 case AV_PIX_FMT_YUVA420P:
165 case AV_PIX_FMT_YUVA422P:
166 case AV_PIX_FMT_YUVA444P:
167 case AV_PIX_FMT_YUV420P9LE:
168 case AV_PIX_FMT_YUV420P9BE:
169 case AV_PIX_FMT_YUV420P10LE:
170 case AV_PIX_FMT_YUV420P10BE:
171 case AV_PIX_FMT_YUV420P12LE:
172 case AV_PIX_FMT_YUV420P12BE:
173 case AV_PIX_FMT_YUV420P14LE:
174 case AV_PIX_FMT_YUV420P14BE:
175 case AV_PIX_FMT_YUV420P16LE:
176 case AV_PIX_FMT_YUV420P16BE:
177 case AV_PIX_FMT_YUVA420P9LE:
178 case AV_PIX_FMT_YUVA420P9BE:
179 case AV_PIX_FMT_YUVA420P10LE:
180 case AV_PIX_FMT_YUVA420P10BE:
181 case AV_PIX_FMT_YUVA420P16LE:
182 case AV_PIX_FMT_YUVA420P16BE:
183 case AV_PIX_FMT_YUV422P9LE:
184 case AV_PIX_FMT_YUV422P9BE:
185 case AV_PIX_FMT_YUV422P10LE:
186 case AV_PIX_FMT_YUV422P10BE:
187 case AV_PIX_FMT_YUV422P12LE:
188 case AV_PIX_FMT_YUV422P12BE:
189 case AV_PIX_FMT_YUV422P14LE:
190 case AV_PIX_FMT_YUV422P14BE:
191 case AV_PIX_FMT_YUV422P16LE:
192 case AV_PIX_FMT_YUV422P16BE:
193 case AV_PIX_FMT_YUVA422P9LE:
194 case AV_PIX_FMT_YUVA422P9BE:
195 case AV_PIX_FMT_YUVA422P10LE:
196 case AV_PIX_FMT_YUVA422P10BE:
197 case AV_PIX_FMT_YUVA422P12LE:
198 case AV_PIX_FMT_YUVA422P12BE:
199 case AV_PIX_FMT_YUVA422P16LE:
200 case AV_PIX_FMT_YUVA422P16BE:
201 case AV_PIX_FMT_YUV440P10LE:
202 case AV_PIX_FMT_YUV440P10BE:
203 case AV_PIX_FMT_YUV440P12LE:
204 case AV_PIX_FMT_YUV440P12BE:
205 case AV_PIX_FMT_YUV444P9LE:
206 case AV_PIX_FMT_YUV444P9BE:
207 case AV_PIX_FMT_YUV444P10LE:
208 case AV_PIX_FMT_YUV444P10BE:
209 case AV_PIX_FMT_YUV444P12LE:
210 case AV_PIX_FMT_YUV444P12BE:
211 case AV_PIX_FMT_YUV444P14LE:
212 case AV_PIX_FMT_YUV444P14BE:
213 case AV_PIX_FMT_YUV444P16LE:
214 case AV_PIX_FMT_YUV444P16BE:
215 case AV_PIX_FMT_YUVA444P9LE:
216 case AV_PIX_FMT_YUVA444P9BE:
217 case AV_PIX_FMT_YUVA444P10LE:
218 case AV_PIX_FMT_YUVA444P10BE:
219 case AV_PIX_FMT_YUVA444P12LE:
220 case AV_PIX_FMT_YUVA444P12BE:
221 case AV_PIX_FMT_YUVA444P16LE:
222 case AV_PIX_FMT_YUVA444P16BE:
223 case AV_PIX_FMT_GBRP9LE:
224 case AV_PIX_FMT_GBRP9BE:
225 case AV_PIX_FMT_GBRP10LE:
226 case AV_PIX_FMT_GBRP10BE:
227 case AV_PIX_FMT_GBRP12LE:
228 case AV_PIX_FMT_GBRP12BE:
229 case AV_PIX_FMT_GBRP14LE:
230 case AV_PIX_FMT_GBRP14BE:
231 case AV_PIX_FMT_GBRP16LE:
232 case AV_PIX_FMT_GBRP16BE:
233 case AV_PIX_FMT_GBRAP12LE:
234 case AV_PIX_FMT_GBRAP12BE:
235 case AV_PIX_FMT_GBRAP16LE:
236 case AV_PIX_FMT_GBRAP16BE:
237 w_align = 16; //FIXME assume 16 pixel per macroblock
238 h_align = 16 * 2; // interlaced needs 2 macroblocks height
240 case AV_PIX_FMT_YUV411P:
241 case AV_PIX_FMT_YUVJ411P:
242 case AV_PIX_FMT_UYYVYY411:
246 case AV_PIX_FMT_YUV410P:
247 if (s->codec_id == AV_CODEC_ID_SVQ1) {
252 case AV_PIX_FMT_RGB555:
253 if (s->codec_id == AV_CODEC_ID_RPZA) {
257 if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
262 case AV_PIX_FMT_PAL8:
263 case AV_PIX_FMT_BGR8:
264 case AV_PIX_FMT_RGB8:
265 if (s->codec_id == AV_CODEC_ID_SMC ||
266 s->codec_id == AV_CODEC_ID_CINEPAK) {
270 if (s->codec_id == AV_CODEC_ID_JV ||
271 s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
276 case AV_PIX_FMT_BGR24:
277 if ((s->codec_id == AV_CODEC_ID_MSZH) ||
278 (s->codec_id == AV_CODEC_ID_ZLIB)) {
283 case AV_PIX_FMT_RGB24:
284 if (s->codec_id == AV_CODEC_ID_CINEPAK) {
293 if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
294 w_align = FFMAX(w_align, 8);
297 *width = FFALIGN(*width, w_align);
298 *height = FFALIGN(*height, h_align);
299 if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
300 s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
301 s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
303 // some of the optimized chroma MC reads one line too much
304 // which is also done in mpeg decoders with lowres > 0
307 // H.264 uses edge emulation for out of frame motion vectors, for this
308 // it requires a temporary area large enough to hold a 21x21 block,
309 // increasing witdth ensure that the temporary area is large enough,
310 // the next rounded up width is 32
311 *width = FFMAX(*width, 32);
314 for (i = 0; i < 4; i++)
315 linesize_align[i] = STRIDE_ALIGN;
318 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
320 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
321 int chroma_shift = desc->log2_chroma_w;
322 int linesize_align[AV_NUM_DATA_POINTERS];
325 avcodec_align_dimensions2(s, width, height, linesize_align);
326 align = FFMAX(linesize_align[0], linesize_align[3]);
327 linesize_align[1] <<= chroma_shift;
328 linesize_align[2] <<= chroma_shift;
329 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
330 *width = FFALIGN(*width, align);
333 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
335 if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
336 return AVERROR(EINVAL);
339 *xpos = (pos&1) * 128;
340 *ypos = ((pos>>1)^(pos<4)) * 128;
345 enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
349 for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
350 if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
353 return AVCHROMA_LOC_UNSPECIFIED;
356 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
357 enum AVSampleFormat sample_fmt, const uint8_t *buf,
358 int buf_size, int align)
360 int ch, planar, needed_size, ret = 0;
362 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
363 frame->nb_samples, sample_fmt,
365 if (buf_size < needed_size)
366 return AVERROR(EINVAL);
368 planar = av_sample_fmt_is_planar(sample_fmt);
369 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
370 if (!(frame->extended_data = av_mallocz_array(nb_channels,
371 sizeof(*frame->extended_data))))
372 return AVERROR(ENOMEM);
374 frame->extended_data = frame->data;
377 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
378 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
379 sample_fmt, align)) < 0) {
380 if (frame->extended_data != frame->data)
381 av_freep(&frame->extended_data);
384 if (frame->extended_data != frame->data) {
385 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
386 frame->data[ch] = frame->extended_data[ch];
392 void ff_color_frame(AVFrame *frame, const int c[4])
394 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
397 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
399 for (p = 0; p<desc->nb_components; p++) {
400 uint8_t *dst = frame->data[p];
401 int is_chroma = p == 1 || p == 2;
402 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
403 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
404 if (desc->comp[0].depth >= 9) {
405 ((uint16_t*)dst)[0] = c[p];
406 av_memcpy_backptr(dst + 2, 2, bytes - 2);
407 dst += frame->linesize[p];
408 for (y = 1; y < height; y++) {
409 memcpy(dst, frame->data[p], 2*bytes);
410 dst += frame->linesize[p];
413 for (y = 0; y < height; y++) {
414 memset(dst, c[p], bytes);
415 dst += frame->linesize[p];
421 enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
424 while (tags->pix_fmt >= 0) {
425 if (tags->fourcc == fourcc)
426 return tags->pix_fmt;
429 return AV_PIX_FMT_NONE;
432 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
433 return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
436 const char *avcodec_get_name(enum AVCodecID id)
438 const AVCodecDescriptor *cd;
439 const AVCodec *codec;
441 if (id == AV_CODEC_ID_NONE)
443 cd = avcodec_descriptor_get(id);
446 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
447 codec = avcodec_find_decoder(id);
450 codec = avcodec_find_encoder(id);
453 return "unknown_codec";
456 #if FF_API_TAG_STRING
457 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
461 #define TAG_PRINT(x) \
462 (((x) >= '0' && (x) <= '9') || \
463 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
464 ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
466 for (i = 0; i < 4; i++) {
467 len = snprintf(buf, buf_size,
468 TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
470 buf_size = buf_size > len ? buf_size - len : 0;
478 const char *av_get_profile_name(const AVCodec *codec, int profile)
481 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
484 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
485 if (p->profile == profile)
491 const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
493 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
496 if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
499 for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
500 if (p->profile == profile)
506 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
509 case AV_CODEC_ID_8SVX_EXP:
510 case AV_CODEC_ID_8SVX_FIB:
511 case AV_CODEC_ID_ADPCM_ARGO:
512 case AV_CODEC_ID_ADPCM_CT:
513 case AV_CODEC_ID_ADPCM_IMA_ALP:
514 case AV_CODEC_ID_ADPCM_IMA_AMV:
515 case AV_CODEC_ID_ADPCM_IMA_APC:
516 case AV_CODEC_ID_ADPCM_IMA_APM:
517 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
518 case AV_CODEC_ID_ADPCM_IMA_OKI:
519 case AV_CODEC_ID_ADPCM_IMA_WS:
520 case AV_CODEC_ID_ADPCM_IMA_SSI:
521 case AV_CODEC_ID_ADPCM_G722:
522 case AV_CODEC_ID_ADPCM_YAMAHA:
523 case AV_CODEC_ID_ADPCM_AICA:
525 case AV_CODEC_ID_DSD_LSBF:
526 case AV_CODEC_ID_DSD_MSBF:
527 case AV_CODEC_ID_DSD_LSBF_PLANAR:
528 case AV_CODEC_ID_DSD_MSBF_PLANAR:
529 case AV_CODEC_ID_PCM_ALAW:
530 case AV_CODEC_ID_PCM_MULAW:
531 case AV_CODEC_ID_PCM_VIDC:
532 case AV_CODEC_ID_PCM_S8:
533 case AV_CODEC_ID_PCM_S8_PLANAR:
534 case AV_CODEC_ID_PCM_SGA:
535 case AV_CODEC_ID_PCM_U8:
536 case AV_CODEC_ID_SDX2_DPCM:
537 case AV_CODEC_ID_DERF_DPCM:
539 case AV_CODEC_ID_PCM_S16BE:
540 case AV_CODEC_ID_PCM_S16BE_PLANAR:
541 case AV_CODEC_ID_PCM_S16LE:
542 case AV_CODEC_ID_PCM_S16LE_PLANAR:
543 case AV_CODEC_ID_PCM_U16BE:
544 case AV_CODEC_ID_PCM_U16LE:
546 case AV_CODEC_ID_PCM_S24DAUD:
547 case AV_CODEC_ID_PCM_S24BE:
548 case AV_CODEC_ID_PCM_S24LE:
549 case AV_CODEC_ID_PCM_S24LE_PLANAR:
550 case AV_CODEC_ID_PCM_U24BE:
551 case AV_CODEC_ID_PCM_U24LE:
553 case AV_CODEC_ID_PCM_S32BE:
554 case AV_CODEC_ID_PCM_S32LE:
555 case AV_CODEC_ID_PCM_S32LE_PLANAR:
556 case AV_CODEC_ID_PCM_U32BE:
557 case AV_CODEC_ID_PCM_U32LE:
558 case AV_CODEC_ID_PCM_F32BE:
559 case AV_CODEC_ID_PCM_F32LE:
560 case AV_CODEC_ID_PCM_F24LE:
561 case AV_CODEC_ID_PCM_F16LE:
563 case AV_CODEC_ID_PCM_F64BE:
564 case AV_CODEC_ID_PCM_F64LE:
565 case AV_CODEC_ID_PCM_S64BE:
566 case AV_CODEC_ID_PCM_S64LE:
573 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
575 static const enum AVCodecID map[][2] = {
576 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
577 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
578 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
579 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
580 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
581 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
582 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
583 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
584 [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
585 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
586 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
588 if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
589 return AV_CODEC_ID_NONE;
590 if (be < 0 || be > 1)
595 int av_get_bits_per_sample(enum AVCodecID codec_id)
598 case AV_CODEC_ID_ADPCM_SBPRO_2:
600 case AV_CODEC_ID_ADPCM_SBPRO_3:
602 case AV_CODEC_ID_ADPCM_SBPRO_4:
603 case AV_CODEC_ID_ADPCM_IMA_WAV:
604 case AV_CODEC_ID_ADPCM_IMA_QT:
605 case AV_CODEC_ID_ADPCM_SWF:
606 case AV_CODEC_ID_ADPCM_MS:
609 return av_get_exact_bits_per_sample(codec_id);
613 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
614 uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
615 uint8_t * extradata, int frame_size, int frame_bytes)
617 int bps = av_get_exact_bits_per_sample(id);
618 int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
620 /* codecs with an exact constant bits per sample */
621 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
622 return (frame_bytes * 8LL) / (bps * ch);
623 bps = bits_per_coded_sample;
625 /* codecs with a fixed packet duration */
627 case AV_CODEC_ID_ADPCM_ADX: return 32;
628 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
629 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
630 case AV_CODEC_ID_AMR_NB:
631 case AV_CODEC_ID_EVRC:
632 case AV_CODEC_ID_GSM:
633 case AV_CODEC_ID_QCELP:
634 case AV_CODEC_ID_RA_288: return 160;
635 case AV_CODEC_ID_AMR_WB:
636 case AV_CODEC_ID_GSM_MS: return 320;
637 case AV_CODEC_ID_MP1: return 384;
638 case AV_CODEC_ID_ATRAC1: return 512;
639 case AV_CODEC_ID_ATRAC9:
640 case AV_CODEC_ID_ATRAC3:
641 if (framecount > INT_MAX/1024)
643 return 1024 * framecount;
644 case AV_CODEC_ID_ATRAC3P: return 2048;
645 case AV_CODEC_ID_MP2:
646 case AV_CODEC_ID_MUSEPACK7: return 1152;
647 case AV_CODEC_ID_AC3: return 1536;
651 /* calc from sample rate */
652 if (id == AV_CODEC_ID_TTA)
653 return 256 * sr / 245;
654 else if (id == AV_CODEC_ID_DST)
655 return 588 * sr / 44100;
656 else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
659 return (480 << (sr / 22050));
662 if (id == AV_CODEC_ID_MP3)
663 return sr <= 24000 ? 576 : 1152;
667 /* calc from block_align */
668 if (id == AV_CODEC_ID_SIPR) {
675 } else if (id == AV_CODEC_ID_ILBC) {
683 if (frame_bytes > 0) {
684 /* calc from frame_bytes only */
685 if (id == AV_CODEC_ID_TRUESPEECH)
686 return 240 * (frame_bytes / 32);
687 if (id == AV_CODEC_ID_NELLYMOSER)
688 return 256 * (frame_bytes / 64);
689 if (id == AV_CODEC_ID_RA_144)
690 return 160 * (frame_bytes / 20);
693 /* calc from frame_bytes and bits_per_coded_sample */
694 if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
695 return frame_bytes * 8 / bps;
698 if (ch > 0 && ch < INT_MAX/16) {
699 /* calc from frame_bytes and channels */
701 case AV_CODEC_ID_FASTAUDIO:
702 return frame_bytes / (40 * ch) * 256;
703 case AV_CODEC_ID_ADPCM_IMA_MOFLEX:
704 return (frame_bytes - 4 * ch) / (128 * ch) * 256;
705 case AV_CODEC_ID_ADPCM_AFC:
706 return frame_bytes / (9 * ch) * 16;
707 case AV_CODEC_ID_ADPCM_PSX:
708 case AV_CODEC_ID_ADPCM_DTK:
709 frame_bytes /= 16 * ch;
710 if (frame_bytes > INT_MAX / 28)
712 return frame_bytes * 28;
713 case AV_CODEC_ID_ADPCM_4XM:
714 case AV_CODEC_ID_ADPCM_IMA_DAT4:
715 case AV_CODEC_ID_ADPCM_IMA_ISS:
716 return (frame_bytes - 4 * ch) * 2 / ch;
717 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
718 return (frame_bytes - 4) * 2 / ch;
719 case AV_CODEC_ID_ADPCM_IMA_AMV:
720 return (frame_bytes - 8) * 2;
721 case AV_CODEC_ID_ADPCM_THP:
722 case AV_CODEC_ID_ADPCM_THP_LE:
724 return frame_bytes * 14 / (8 * ch);
726 case AV_CODEC_ID_ADPCM_XA:
727 return (frame_bytes / 128) * 224 / ch;
728 case AV_CODEC_ID_INTERPLAY_DPCM:
729 return (frame_bytes - 6 - ch) / ch;
730 case AV_CODEC_ID_ROQ_DPCM:
731 return (frame_bytes - 8) / ch;
732 case AV_CODEC_ID_XAN_DPCM:
733 return (frame_bytes - 2 * ch) / ch;
734 case AV_CODEC_ID_MACE3:
735 return 3 * frame_bytes / ch;
736 case AV_CODEC_ID_MACE6:
737 return 6 * frame_bytes / ch;
738 case AV_CODEC_ID_PCM_LXF:
739 return 2 * (frame_bytes / (5 * ch));
740 case AV_CODEC_ID_IAC:
741 case AV_CODEC_ID_IMC:
742 return 4 * frame_bytes / ch;
746 /* calc from frame_bytes, channels, and codec_tag */
747 if (id == AV_CODEC_ID_SOL_DPCM) {
749 return frame_bytes / ch;
751 return frame_bytes * 2 / ch;
756 /* calc from frame_bytes, channels, and block_align */
757 int blocks = frame_bytes / ba;
760 case AV_CODEC_ID_ADPCM_IMA_WAV:
761 if (bps < 2 || bps > 5)
763 tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8);
767 case AV_CODEC_ID_ADPCM_IMA_DK3:
768 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
769 case AV_CODEC_ID_ADPCM_IMA_DK4:
770 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
771 case AV_CODEC_ID_ADPCM_IMA_RAD:
772 return blocks * ((ba - 4 * ch) * 2 / ch);
773 case AV_CODEC_ID_ADPCM_MS:
774 return blocks * (2 + (ba - 7 * ch) * 2LL / ch);
775 case AV_CODEC_ID_ADPCM_MTAF:
776 return blocks * (ba - 16) * 2 / ch;
781 /* calc from frame_bytes, channels, and bits_per_coded_sample */
783 case AV_CODEC_ID_PCM_DVD:
784 if(bps<4 || frame_bytes<3)
786 return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
787 case AV_CODEC_ID_PCM_BLURAY:
788 if(bps<4 || frame_bytes<4)
790 return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
791 case AV_CODEC_ID_S302M:
792 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
798 /* Fall back on using frame_size */
799 if (frame_size > 1 && frame_bytes)
802 //For WMA we currently have no other means to calculate duration thus we
803 //do it here by assuming CBR, which is true for all known cases.
804 if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
805 if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
806 return (frame_bytes * 8LL * sr) / bitrate;
812 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
814 return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
815 avctx->channels, avctx->block_align,
816 avctx->codec_tag, avctx->bits_per_coded_sample,
817 avctx->bit_rate, avctx->extradata, avctx->frame_size,
821 int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
823 return get_audio_frame_duration(par->codec_id, par->sample_rate,
824 par->channels, par->block_align,
825 par->codec_tag, par->bits_per_coded_sample,
826 par->bit_rate, par->extradata, par->frame_size,
831 int ff_thread_init(AVCodecContext *s)
838 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
852 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
855 for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
859 const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
862 if (!codec->hw_configs || index < 0)
864 for (i = 0; i <= index; i++)
865 if (!codec->hw_configs[i])
867 return &codec->hw_configs[index]->public;
870 #if FF_API_USER_VISIBLE_AVHWACCEL
871 AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
876 void av_register_hwaccel(AVHWAccel *hwaccel)
881 unsigned int avpriv_toupper4(unsigned int x)
883 return av_toupper(x & 0xFF) +
884 (av_toupper((x >> 8) & 0xFF) << 8) +
885 (av_toupper((x >> 16) & 0xFF) << 16) +
886 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
889 int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
893 dst->owner[0] = src->owner[0];
894 dst->owner[1] = src->owner[1];
896 ret = av_frame_ref(dst->f, src->f);
900 av_assert0(!dst->progress);
903 !(dst->progress = av_buffer_ref(src->progress))) {
904 ff_thread_release_buffer(dst->owner[0], dst);
905 return AVERROR(ENOMEM);
913 enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
915 return ff_get_format(avctx, fmt);
918 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
920 f->owner[0] = f->owner[1] = avctx;
921 return ff_get_buffer(avctx, f->f, flags);
924 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
927 av_frame_unref(f->f);
930 void ff_thread_finish_setup(AVCodecContext *avctx)
934 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
938 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
942 int ff_thread_can_start_frame(AVCodecContext *avctx)
947 int ff_alloc_entries(AVCodecContext *avctx, int count)
952 void ff_reset_entries(AVCodecContext *avctx)
956 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
960 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
966 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
968 uint32_t *av_restrict state)
972 av_assert0(p <= end);
976 for (i = 0; i < 3; i++) {
977 uint32_t tmp = *state << 8;
978 *state = tmp + *(p++);
979 if (tmp == 0x100 || p == end)
984 if (p[-1] > 1 ) p += 3;
985 else if (p[-2] ) p += 2;
986 else if (p[-3]|(p[-1]-1)) p++;
993 p = FFMIN(p, end) - 4;
999 AVCPBProperties *av_cpb_properties_alloc(size_t *size)
1001 AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1006 *size = sizeof(*props);
1008 props->vbv_delay = UINT64_MAX;
1013 AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
1015 AVPacketSideData *tmp;
1016 AVCPBProperties *props;
1020 for (i = 0; i < avctx->nb_coded_side_data; i++)
1021 if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
1022 return (AVCPBProperties *)avctx->coded_side_data[i].data;
1024 props = av_cpb_properties_alloc(&size);
1028 tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1034 avctx->coded_side_data = tmp;
1035 avctx->nb_coded_side_data++;
1037 avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
1038 avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1039 avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1044 static unsigned bcd2uint(uint8_t bcd)
1046 unsigned low = bcd & 0xf;
1047 unsigned high = bcd >> 4;
1048 if (low > 9 || high > 9)
1050 return low + 10*high;
1053 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
1054 void **data, size_t *sei_size)
1056 AVFrameSideData *sd = NULL;
1063 sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE);
1069 tc = (uint32_t*)sd->data;
1072 *sei_size = sizeof(uint32_t) * 4;
1073 *data = av_mallocz(*sei_size + prefix_len);
1075 return AVERROR(ENOMEM);
1076 sei_data = (uint8_t*)*data + prefix_len;
1078 init_put_bits(&pb, sei_data, *sei_size);
1079 put_bits(&pb, 2, m); // num_clock_ts
1081 for (int j = 1; j <= m; j++) {
1082 uint32_t tcsmpte = tc[j];
1083 unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
1084 unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
1085 unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
1086 unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
1087 unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
1089 /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
1090 if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
1093 if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
1094 pc = !!(tcsmpte & 1 << 7);
1096 pc = !!(tcsmpte & 1 << 23);
1097 ff = (ff + pc) & 0x7f;
1100 put_bits(&pb, 1, 1); // clock_timestamp_flag
1101 put_bits(&pb, 1, 1); // units_field_based_flag
1102 put_bits(&pb, 5, 0); // counting_type
1103 put_bits(&pb, 1, 1); // full_timestamp_flag
1104 put_bits(&pb, 1, 0); // discontinuity_flag
1105 put_bits(&pb, 1, drop);
1106 put_bits(&pb, 9, ff);
1107 put_bits(&pb, 6, ss);
1108 put_bits(&pb, 6, mm);
1109 put_bits(&pb, 5, hh);
1110 put_bits(&pb, 5, 0);
1112 flush_put_bits(&pb);
1117 int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
1119 AVRational framerate = avctx->framerate;
1120 int bits_per_coded_sample = avctx->bits_per_coded_sample;
1123 if (!(framerate.num && framerate.den))
1124 framerate = av_inv_q(avctx->time_base);
1125 if (!(framerate.num && framerate.den))
1128 if (!bits_per_coded_sample) {
1129 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
1130 bits_per_coded_sample = av_get_bits_per_pixel(desc);
1132 bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
1133 framerate.num / framerate.den;
1138 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
1139 const int * array_valid_values, int default_value)
1144 ref_val = array_valid_values[i];
1145 if (ref_val == INT_MAX)
1151 /* val is not a valid value */
1152 av_log(ctx, AV_LOG_DEBUG,
1153 "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
1154 return default_value;