2 * Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * Convert between colorspaces.
26 #include "libavutil/avassert.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/pixfmt.h"
32 #include "colorspacedsp.h"
62 enum WhitepointAdaptation {
65 NB_WP_ADAPT_NON_IDENTITY,
66 WP_ADAPT_IDENTITY = NB_WP_ADAPT_NON_IDENTITY,
70 static const enum AVColorTransferCharacteristic default_trc[CS_NB + 1] = {
71 [CS_UNSPECIFIED] = AVCOL_TRC_UNSPECIFIED,
72 [CS_BT470M] = AVCOL_TRC_GAMMA22,
73 [CS_BT470BG] = AVCOL_TRC_GAMMA28,
74 [CS_BT601_6_525] = AVCOL_TRC_SMPTE170M,
75 [CS_BT601_6_625] = AVCOL_TRC_SMPTE170M,
76 [CS_BT709] = AVCOL_TRC_BT709,
77 [CS_SMPTE170M] = AVCOL_TRC_SMPTE170M,
78 [CS_SMPTE240M] = AVCOL_TRC_SMPTE240M,
79 [CS_BT2020] = AVCOL_TRC_BT2020_10,
80 [CS_NB] = AVCOL_TRC_UNSPECIFIED,
83 static const enum AVColorPrimaries default_prm[CS_NB + 1] = {
84 [CS_UNSPECIFIED] = AVCOL_PRI_UNSPECIFIED,
85 [CS_BT470M] = AVCOL_PRI_BT470M,
86 [CS_BT470BG] = AVCOL_PRI_BT470BG,
87 [CS_BT601_6_525] = AVCOL_PRI_SMPTE170M,
88 [CS_BT601_6_625] = AVCOL_PRI_BT470BG,
89 [CS_BT709] = AVCOL_PRI_BT709,
90 [CS_SMPTE170M] = AVCOL_PRI_SMPTE170M,
91 [CS_SMPTE240M] = AVCOL_PRI_SMPTE240M,
92 [CS_BT2020] = AVCOL_PRI_BT2020,
93 [CS_NB] = AVCOL_PRI_UNSPECIFIED,
96 static const enum AVColorSpace default_csp[CS_NB + 1] = {
97 [CS_UNSPECIFIED] = AVCOL_SPC_UNSPECIFIED,
98 [CS_BT470M] = AVCOL_SPC_SMPTE170M,
99 [CS_BT470BG] = AVCOL_SPC_BT470BG,
100 [CS_BT601_6_525] = AVCOL_SPC_SMPTE170M,
101 [CS_BT601_6_625] = AVCOL_SPC_BT470BG,
102 [CS_BT709] = AVCOL_SPC_BT709,
103 [CS_SMPTE170M] = AVCOL_SPC_SMPTE170M,
104 [CS_SMPTE240M] = AVCOL_SPC_SMPTE240M,
105 [CS_BT2020] = AVCOL_SPC_BT2020_NCL,
106 [CS_NB] = AVCOL_SPC_UNSPECIFIED,
109 struct ColorPrimaries {
111 double xr, yr, xg, yg, xb, yb;
114 struct TransferCharacteristics {
115 double alpha, beta, gamma, delta;
118 struct LumaCoefficients {
122 struct WhitepointCoefficients {
126 typedef struct ColorSpaceContext {
127 const AVClass *class;
129 ColorSpaceDSPContext dsp;
131 enum Colorspace user_all;
132 enum AVColorSpace in_csp, out_csp, user_csp;
133 enum AVColorRange in_rng, out_rng, user_rng;
134 enum AVColorTransferCharacteristic in_trc, out_trc, user_trc;
135 enum AVColorPrimaries in_prm, out_prm, user_prm;
136 enum AVPixelFormat in_format, user_format;
138 enum DitherMode dither;
139 enum WhitepointAdaptation wp_adapt;
142 ptrdiff_t rgb_stride;
144 int *dither_scratch[3][2], *dither_scratch_base[3][2];
146 const struct ColorPrimaries *in_primaries, *out_primaries;
147 int lrgb2lrgb_passthrough;
148 DECLARE_ALIGNED(16, int16_t, lrgb2lrgb_coeffs)[3][3][8];
150 const struct TransferCharacteristics *in_txchr, *out_txchr;
151 int rgb2rgb_passthrough;
152 int16_t *lin_lut, *delin_lut;
154 const struct LumaCoefficients *in_lumacoef, *out_lumacoef;
155 int yuv2yuv_passthrough, yuv2yuv_fastmode;
156 DECLARE_ALIGNED(16, int16_t, yuv2rgb_coeffs)[3][3][8];
157 DECLARE_ALIGNED(16, int16_t, rgb2yuv_coeffs)[3][3][8];
158 DECLARE_ALIGNED(16, int16_t, yuv2yuv_coeffs)[3][3][8];
159 DECLARE_ALIGNED(16, int16_t, yuv_offset)[2 /* in, out */][8];
162 rgb2yuv_fsb_fn rgb2yuv_fsb;
164 double yuv2rgb_dbl_coeffs[3][3], rgb2yuv_dbl_coeffs[3][3];
165 int in_y_rng, in_uv_rng, out_y_rng, out_uv_rng;
168 // FIXME deal with odd width/heights (or just forbid it)
169 // FIXME faster linearize/delinearize implementation (integer pow)
170 // FIXME bt2020cl support (linearization between yuv/rgb step instead of between rgb/xyz)
171 // FIXME test that the values in (de)lin_lut don't exceed their container storage
172 // type size (only useful if we keep the LUT and don't move to fast integer pow)
173 // FIXME dithering if bitdepth goes down?
174 // FIXME bitexact for fate integration?
177 * All constants explained in e.g. https://linuxtv.org/downloads/v4l-dvb-apis/ch02s06.html
178 * The older ones (bt470bg/m) are also explained in their respective ITU docs
179 * (e.g. https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.470-5-199802-S!!PDF-E.pdf)
180 * whereas the newer ones can typically be copied directly from wikipedia :)
182 static const struct LumaCoefficients luma_coefficients[AVCOL_SPC_NB] = {
183 [AVCOL_SPC_FCC] = { 0.30, 0.59, 0.11 },
184 [AVCOL_SPC_BT470BG] = { 0.299, 0.587, 0.114 },
185 [AVCOL_SPC_SMPTE170M] = { 0.299, 0.587, 0.114 },
186 [AVCOL_SPC_BT709] = { 0.2126, 0.7152, 0.0722 },
187 [AVCOL_SPC_SMPTE240M] = { 0.212, 0.701, 0.087 },
188 [AVCOL_SPC_BT2020_NCL] = { 0.2627, 0.6780, 0.0593 },
189 [AVCOL_SPC_BT2020_CL] = { 0.2627, 0.6780, 0.0593 },
192 static const struct LumaCoefficients *get_luma_coefficients(enum AVColorSpace csp)
194 const struct LumaCoefficients *coeffs;
196 if (csp >= AVCOL_SPC_NB)
198 coeffs = &luma_coefficients[csp];
205 static void fill_rgb2yuv_table(const struct LumaCoefficients *coeffs,
206 double rgb2yuv[3][3])
208 double bscale, rscale;
210 rgb2yuv[0][0] = coeffs->cr;
211 rgb2yuv[0][1] = coeffs->cg;
212 rgb2yuv[0][2] = coeffs->cb;
213 bscale = 0.5 / (coeffs->cb - 1.0);
214 rscale = 0.5 / (coeffs->cr - 1.0);
215 rgb2yuv[1][0] = bscale * coeffs->cr;
216 rgb2yuv[1][1] = bscale * coeffs->cg;
219 rgb2yuv[2][1] = rscale * coeffs->cg;
220 rgb2yuv[2][2] = rscale * coeffs->cb;
223 // FIXME I'm pretty sure gamma22/28 also have a linear toe slope, but I can't
224 // find any actual tables that document their real values...
225 // See http://www.13thmonkey.org/~boris/gammacorrection/ first graph why it matters
226 static const struct TransferCharacteristics transfer_characteristics[AVCOL_TRC_NB] = {
227 [AVCOL_TRC_BT709] = { 1.099, 0.018, 0.45, 4.5 },
228 [AVCOL_TRC_GAMMA22] = { 1.0, 0.0, 1.0 / 2.2, 0.0 },
229 [AVCOL_TRC_GAMMA28] = { 1.0, 0.0, 1.0 / 2.8, 0.0 },
230 [AVCOL_TRC_SMPTE170M] = { 1.099, 0.018, 0.45, 4.5 },
231 [AVCOL_TRC_SMPTE240M] = { 1.1115, 0.0228, 0.45, 4.0 },
232 [AVCOL_TRC_BT2020_10] = { 1.099, 0.018, 0.45, 4.5 },
233 [AVCOL_TRC_BT2020_12] = { 1.0993, 0.0181, 0.45, 4.5 },
236 static const struct TransferCharacteristics *
237 get_transfer_characteristics(enum AVColorTransferCharacteristic trc)
239 const struct TransferCharacteristics *coeffs;
241 if (trc >= AVCOL_TRC_NB)
243 coeffs = &transfer_characteristics[trc];
250 static const struct WhitepointCoefficients whitepoint_coefficients[WP_NB] = {
251 [WP_D65] = { 0.3127, 0.3290 },
252 [WP_C] = { 0.3100, 0.3160 },
255 static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB] = {
256 [AVCOL_PRI_BT709] = { WP_D65, 0.640, 0.330, 0.300, 0.600, 0.150, 0.060 },
257 [AVCOL_PRI_BT470M] = { WP_C, 0.670, 0.330, 0.210, 0.710, 0.140, 0.080 },
258 [AVCOL_PRI_BT470BG] = { WP_D65, 0.640, 0.330, 0.290, 0.600, 0.150, 0.060,},
259 [AVCOL_PRI_SMPTE170M] = { WP_D65, 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 },
260 [AVCOL_PRI_SMPTE240M] = { WP_D65, 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 },
261 [AVCOL_PRI_BT2020] = { WP_D65, 0.708, 0.292, 0.170, 0.797, 0.131, 0.046 },
264 static const struct ColorPrimaries *get_color_primaries(enum AVColorPrimaries prm)
266 const struct ColorPrimaries *coeffs;
268 if (prm >= AVCOL_PRI_NB)
270 coeffs = &color_primaries[prm];
277 static void invert_matrix3x3(const double in[3][3], double out[3][3])
279 double m00 = in[0][0], m01 = in[0][1], m02 = in[0][2],
280 m10 = in[1][0], m11 = in[1][1], m12 = in[1][2],
281 m20 = in[2][0], m21 = in[2][1], m22 = in[2][2];
285 out[0][0] = (m11 * m22 - m21 * m12);
286 out[0][1] = -(m01 * m22 - m21 * m02);
287 out[0][2] = (m01 * m12 - m11 * m02);
288 out[1][0] = -(m10 * m22 - m20 * m12);
289 out[1][1] = (m00 * m22 - m20 * m02);
290 out[1][2] = -(m00 * m12 - m10 * m02);
291 out[2][0] = (m10 * m21 - m20 * m11);
292 out[2][1] = -(m00 * m21 - m20 * m01);
293 out[2][2] = (m00 * m11 - m10 * m01);
295 det = m00 * out[0][0] + m10 * out[0][1] + m20 * out[0][2];
298 for (i = 0; i < 3; i++) {
299 for (j = 0; j < 3; j++)
304 static int fill_gamma_table(ColorSpaceContext *s)
307 double in_alpha = s->in_txchr->alpha, in_beta = s->in_txchr->beta;
308 double in_gamma = s->in_txchr->gamma, in_delta = s->in_txchr->delta;
309 double in_ialpha = 1.0 / in_alpha, in_igamma = 1.0 / in_gamma, in_idelta = 1.0 / in_delta;
310 double out_alpha = s->out_txchr->alpha, out_beta = s->out_txchr->beta;
311 double out_gamma = s->out_txchr->gamma, out_delta = s->out_txchr->delta;
313 s->lin_lut = av_malloc(sizeof(*s->lin_lut) * 32768 * 2);
315 return AVERROR(ENOMEM);
316 s->delin_lut = &s->lin_lut[32768];
317 for (n = 0; n < 32768; n++) {
318 double v = (n - 2048.0) / 28672.0, d, l;
321 if (v <= -out_beta) {
322 d = -out_alpha * pow(-v, out_gamma) + (out_alpha - 1.0);
323 } else if (v < out_beta) {
326 d = out_alpha * pow(v, out_gamma) - (out_alpha - 1.0);
328 s->delin_lut[n] = av_clip_int16(lrint(d * 28672.0));
332 l = -pow((1.0 - in_alpha - v) * in_ialpha, in_igamma);
333 } else if (v < in_beta) {
336 l = pow((v + in_alpha - 1.0) * in_ialpha, in_igamma);
338 s->lin_lut[n] = av_clip_int16(lrint(l * 28672.0));
345 * see e.g. http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
347 static void fill_rgb2xyz_table(const struct ColorPrimaries *coeffs,
348 double rgb2xyz[3][3])
350 const struct WhitepointCoefficients *wp = &whitepoint_coefficients[coeffs->wp];
351 double i[3][3], sr, sg, sb, zw;
353 rgb2xyz[0][0] = coeffs->xr / coeffs->yr;
354 rgb2xyz[0][1] = coeffs->xg / coeffs->yg;
355 rgb2xyz[0][2] = coeffs->xb / coeffs->yb;
356 rgb2xyz[1][0] = rgb2xyz[1][1] = rgb2xyz[1][2] = 1.0;
357 rgb2xyz[2][0] = (1.0 - coeffs->xr - coeffs->yr) / coeffs->yr;
358 rgb2xyz[2][1] = (1.0 - coeffs->xg - coeffs->yg) / coeffs->yg;
359 rgb2xyz[2][2] = (1.0 - coeffs->xb - coeffs->yb) / coeffs->yb;
360 invert_matrix3x3(rgb2xyz, i);
361 zw = 1.0 - wp->xw - wp->yw;
362 sr = i[0][0] * wp->xw + i[0][1] * wp->yw + i[0][2] * zw;
363 sg = i[1][0] * wp->xw + i[1][1] * wp->yw + i[1][2] * zw;
364 sb = i[2][0] * wp->xw + i[2][1] * wp->yw + i[2][2] * zw;
376 static void mul3x3(double dst[3][3], const double src1[3][3], const double src2[3][3])
380 for (m = 0; m < 3; m++)
381 for (n = 0; n < 3; n++)
382 dst[m][n] = src2[m][0] * src1[0][n] +
383 src2[m][1] * src1[1][n] +
384 src2[m][2] * src1[2][n];
388 * See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html
389 * This function uses the Bradford mechanism.
391 static void fill_whitepoint_conv_table(double out[3][3], enum WhitepointAdaptation wp_adapt,
392 enum Whitepoint src, enum Whitepoint dst)
394 static const double ma_tbl[NB_WP_ADAPT_NON_IDENTITY][3][3] = {
395 [WP_ADAPT_BRADFORD] = {
396 { 0.8951, 0.2664, -0.1614 },
397 { -0.7502, 1.7135, 0.0367 },
398 { 0.0389, -0.0685, 1.0296 },
399 }, [WP_ADAPT_VON_KRIES] = {
400 { 0.40024, 0.70760, -0.08081 },
401 { -0.22630, 1.16532, 0.04570 },
402 { 0.00000, 0.00000, 0.91822 },
405 const double (*ma)[3] = ma_tbl[wp_adapt];
406 const struct WhitepointCoefficients *wp_src = &whitepoint_coefficients[src];
407 double zw_src = 1.0 - wp_src->xw - wp_src->yw;
408 const struct WhitepointCoefficients *wp_dst = &whitepoint_coefficients[dst];
409 double zw_dst = 1.0 - wp_dst->xw - wp_dst->yw;
410 double mai[3][3], fac[3][3], tmp[3][3];
411 double rs, gs, bs, rd, gd, bd;
413 invert_matrix3x3(ma, mai);
414 rs = ma[0][0] * wp_src->xw + ma[0][1] * wp_src->yw + ma[0][2] * zw_src;
415 gs = ma[1][0] * wp_src->xw + ma[1][1] * wp_src->yw + ma[1][2] * zw_src;
416 bs = ma[2][0] * wp_src->xw + ma[2][1] * wp_src->yw + ma[2][2] * zw_src;
417 rd = ma[0][0] * wp_dst->xw + ma[0][1] * wp_dst->yw + ma[0][2] * zw_dst;
418 gd = ma[1][0] * wp_dst->xw + ma[1][1] * wp_dst->yw + ma[1][2] * zw_dst;
419 bd = ma[2][0] * wp_dst->xw + ma[2][1] * wp_dst->yw + ma[2][2] * zw_dst;
423 fac[0][1] = fac[0][2] = fac[1][0] = fac[1][2] = fac[2][0] = fac[2][1] = 0.0;
424 mul3x3(tmp, ma, fac);
425 mul3x3(out, tmp, mai);
428 static void apply_lut(int16_t *buf[3], ptrdiff_t stride,
429 int w, int h, const int16_t *lut)
433 for (n = 0; n < 3; n++) {
434 int16_t *data = buf[n];
436 for (y = 0; y < h; y++) {
437 for (x = 0; x < w; x++)
438 data[x] = lut[av_clip_uintp2(2048 + data[x], 15)];
447 ptrdiff_t in_linesize[3], out_linesize[3];
448 int in_ss_h, out_ss_h;
451 static int convert(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
453 struct ThreadData *td = data;
454 ColorSpaceContext *s = ctx->priv;
455 uint8_t *in_data[3], *out_data[3];
457 int h_in = (td->in->height + 1) >> 1;
458 int h1 = 2 * (job_nr * h_in / n_jobs), h2 = 2 * ((job_nr + 1) * h_in / n_jobs);
459 int w = td->in->width, h = h2 - h1;
461 in_data[0] = td->in->data[0] + td->in_linesize[0] * h1;
462 in_data[1] = td->in->data[1] + td->in_linesize[1] * (h1 >> td->in_ss_h);
463 in_data[2] = td->in->data[2] + td->in_linesize[2] * (h1 >> td->in_ss_h);
464 out_data[0] = td->out->data[0] + td->out_linesize[0] * h1;
465 out_data[1] = td->out->data[1] + td->out_linesize[1] * (h1 >> td->out_ss_h);
466 out_data[2] = td->out->data[2] + td->out_linesize[2] * (h1 >> td->out_ss_h);
467 rgb[0] = s->rgb[0] + s->rgb_stride * h1;
468 rgb[1] = s->rgb[1] + s->rgb_stride * h1;
469 rgb[2] = s->rgb[2] + s->rgb_stride * h1;
471 // FIXME for simd, also make sure we do pictures with negative stride
472 // top-down so we don't overwrite lines with padding of data before it
473 // in the same buffer (same as swscale)
475 if (s->yuv2yuv_fastmode) {
476 // FIXME possibly use a fast mode in case only the y range changes?
477 // since in that case, only the diagonal entries in yuv2yuv_coeffs[]
479 s->yuv2yuv(out_data, td->out_linesize, in_data, td->in_linesize, w, h,
480 s->yuv2yuv_coeffs, s->yuv_offset);
482 // FIXME maybe (for caching effciency) do pipeline per-line instead of
483 // full buffer per function? (Or, since yuv2rgb requires 2 lines: per
484 // 2 lines, for yuv420.)
487 * - yuv2rgb converts from whatever range the input was ([16-235/240] or
488 * [0,255] or the 10/12bpp equivalents thereof) to an integer version
489 * of RGB in psuedo-restricted 15+sign bits. That means that the float
490 * range [0.0,1.0] is in [0,28762], and the remainder of the int16_t
491 * range is used for overflow/underflow outside the representable
492 * range of this RGB type. rgb2yuv is the exact opposite.
493 * - gamma correction is done using a LUT since that appears to work
495 * - If the input is chroma-subsampled (420/422), the yuv2rgb conversion
496 * (or rgb2yuv conversion) uses nearest-neighbour sampling to read
497 * read chroma pixels at luma resolution. If you want some more fancy
498 * filter, you can use swscale to convert to yuv444p.
499 * - all coefficients are 14bit (so in the [-2.0,2.0] range).
501 s->yuv2rgb(rgb, s->rgb_stride, in_data, td->in_linesize, w, h,
502 s->yuv2rgb_coeffs, s->yuv_offset[0]);
503 if (!s->rgb2rgb_passthrough) {
504 apply_lut(rgb, s->rgb_stride, w, h, s->lin_lut);
505 if (!s->lrgb2lrgb_passthrough)
506 s->dsp.multiply3x3(rgb, s->rgb_stride, w, h, s->lrgb2lrgb_coeffs);
507 apply_lut(rgb, s->rgb_stride, w, h, s->delin_lut);
509 if (s->dither == DITHER_FSB) {
510 s->rgb2yuv_fsb(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
511 s->rgb2yuv_coeffs, s->yuv_offset[1], s->dither_scratch);
513 s->rgb2yuv(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
514 s->rgb2yuv_coeffs, s->yuv_offset[1]);
521 static int get_range_off(int *off, int *y_rng, int *uv_rng,
522 enum AVColorRange rng, int depth)
525 case AVCOL_RANGE_MPEG:
526 *off = 16 << (depth - 8);
527 *y_rng = 219 << (depth - 8);
528 *uv_rng = 224 << (depth - 8);
530 case AVCOL_RANGE_JPEG:
532 *y_rng = *uv_rng = (256 << (depth - 8)) - 1;
535 return AVERROR(EINVAL);
541 static int create_filtergraph(AVFilterContext *ctx,
542 const AVFrame *in, const AVFrame *out)
544 ColorSpaceContext *s = ctx->priv;
545 const AVPixFmtDescriptor *in_desc = av_pix_fmt_desc_get(in->format);
546 const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(out->format);
547 int emms = 0, m, n, o, res, fmt_identical, redo_yuv2rgb = 0, redo_rgb2yuv = 0;
549 #define supported_depth(d) ((d) == 8 || (d) == 10 || (d) == 12)
550 #define supported_subsampling(lcw, lch) \
551 (((lcw) == 0 && (lch) == 0) || ((lcw) == 1 && (lch) == 0) || ((lcw) == 1 && (lch) == 1))
552 #define supported_format(d) \
553 ((d) != NULL && (d)->nb_components == 3 && \
554 !((d)->flags & AV_PIX_FMT_FLAG_RGB) && \
555 supported_depth((d)->comp[0].depth) && \
556 supported_subsampling((d)->log2_chroma_w, (d)->log2_chroma_h))
558 if (!supported_format(in_desc)) {
559 av_log(ctx, AV_LOG_ERROR,
560 "Unsupported input format %d (%s) or bitdepth (%d)\n",
561 in->format, av_get_pix_fmt_name(in->format),
562 in_desc ? in_desc->comp[0].depth : -1);
563 return AVERROR(EINVAL);
565 if (!supported_format(out_desc)) {
566 av_log(ctx, AV_LOG_ERROR,
567 "Unsupported output format %d (%s) or bitdepth (%d)\n",
568 out->format, av_get_pix_fmt_name(out->format),
569 out_desc ? out_desc->comp[0].depth : -1);
570 return AVERROR(EINVAL);
573 if (in->color_primaries != s->in_prm) s->in_primaries = NULL;
574 if (out->color_primaries != s->out_prm) s->out_primaries = NULL;
575 if (in->color_trc != s->in_trc) s->in_txchr = NULL;
576 if (out->color_trc != s->out_trc) s->out_txchr = NULL;
577 if (in->colorspace != s->in_csp ||
578 in->color_range != s->in_rng) s->in_lumacoef = NULL;
579 if (out->colorspace != s->out_csp ||
580 out->color_range != s->out_rng) s->out_lumacoef = NULL;
582 if (!s->out_primaries || !s->in_primaries) {
583 s->in_prm = in->color_primaries;
584 s->in_primaries = get_color_primaries(s->in_prm);
585 if (!s->in_primaries) {
586 av_log(ctx, AV_LOG_ERROR,
587 "Unsupported input primaries %d (%s)\n",
588 s->in_prm, av_color_primaries_name(s->in_prm));
589 return AVERROR(EINVAL);
591 s->out_prm = out->color_primaries;
592 s->out_primaries = get_color_primaries(s->out_prm);
593 if (!s->out_primaries) {
594 if (s->out_prm == AVCOL_PRI_UNSPECIFIED) {
595 if (s->user_all == CS_UNSPECIFIED) {
596 av_log(ctx, AV_LOG_ERROR, "Please specify output primaries\n");
598 av_log(ctx, AV_LOG_ERROR,
599 "Unsupported output color property %d\n", s->user_all);
602 av_log(ctx, AV_LOG_ERROR,
603 "Unsupported output primaries %d (%s)\n",
604 s->out_prm, av_color_primaries_name(s->out_prm));
606 return AVERROR(EINVAL);
608 s->lrgb2lrgb_passthrough = !memcmp(s->in_primaries, s->out_primaries,
609 sizeof(*s->in_primaries));
610 if (!s->lrgb2lrgb_passthrough) {
611 double rgb2xyz[3][3], xyz2rgb[3][3], rgb2rgb[3][3];
613 fill_rgb2xyz_table(s->out_primaries, rgb2xyz);
614 invert_matrix3x3(rgb2xyz, xyz2rgb);
615 fill_rgb2xyz_table(s->in_primaries, rgb2xyz);
616 if (s->out_primaries->wp != s->in_primaries->wp &&
617 s->wp_adapt != WP_ADAPT_IDENTITY) {
618 double wpconv[3][3], tmp[3][3];
620 fill_whitepoint_conv_table(wpconv, s->wp_adapt, s->in_primaries->wp,
621 s->out_primaries->wp);
622 mul3x3(tmp, rgb2xyz, wpconv);
623 mul3x3(rgb2rgb, tmp, xyz2rgb);
625 mul3x3(rgb2rgb, rgb2xyz, xyz2rgb);
627 for (m = 0; m < 3; m++)
628 for (n = 0; n < 3; n++) {
629 s->lrgb2lrgb_coeffs[m][n][0] = lrint(16384.0 * rgb2rgb[m][n]);
630 for (o = 1; o < 8; o++)
631 s->lrgb2lrgb_coeffs[m][n][o] = s->lrgb2lrgb_coeffs[m][n][0];
639 av_freep(&s->lin_lut);
640 s->in_trc = in->color_trc;
641 s->in_txchr = get_transfer_characteristics(s->in_trc);
643 av_log(ctx, AV_LOG_ERROR,
644 "Unsupported input transfer characteristics %d (%s)\n",
645 s->in_trc, av_color_transfer_name(s->in_trc));
646 return AVERROR(EINVAL);
651 av_freep(&s->lin_lut);
652 s->out_trc = out->color_trc;
653 s->out_txchr = get_transfer_characteristics(s->out_trc);
655 if (s->out_trc == AVCOL_TRC_UNSPECIFIED) {
656 if (s->user_all == CS_UNSPECIFIED) {
657 av_log(ctx, AV_LOG_ERROR,
658 "Please specify output transfer characteristics\n");
660 av_log(ctx, AV_LOG_ERROR,
661 "Unsupported output color property %d\n", s->user_all);
664 av_log(ctx, AV_LOG_ERROR,
665 "Unsupported output transfer characteristics %d (%s)\n",
666 s->out_trc, av_color_transfer_name(s->out_trc));
668 return AVERROR(EINVAL);
672 s->rgb2rgb_passthrough = s->fast_mode || (s->lrgb2lrgb_passthrough &&
673 !memcmp(s->in_txchr, s->out_txchr, sizeof(*s->in_txchr)));
674 if (!s->rgb2rgb_passthrough && !s->lin_lut) {
675 res = fill_gamma_table(s);
681 if (!s->in_lumacoef) {
682 s->in_csp = in->colorspace;
683 s->in_rng = in->color_range;
684 s->in_lumacoef = get_luma_coefficients(s->in_csp);
685 if (!s->in_lumacoef) {
686 av_log(ctx, AV_LOG_ERROR,
687 "Unsupported input colorspace %d (%s)\n",
688 s->in_csp, av_color_space_name(s->in_csp));
689 return AVERROR(EINVAL);
694 if (!s->out_lumacoef) {
695 s->out_csp = out->colorspace;
696 s->out_rng = out->color_range;
697 s->out_lumacoef = get_luma_coefficients(s->out_csp);
698 if (!s->out_lumacoef) {
699 if (s->out_csp == AVCOL_SPC_UNSPECIFIED) {
700 if (s->user_all == CS_UNSPECIFIED) {
701 av_log(ctx, AV_LOG_ERROR,
702 "Please specify output transfer characteristics\n");
704 av_log(ctx, AV_LOG_ERROR,
705 "Unsupported output color property %d\n", s->user_all);
708 av_log(ctx, AV_LOG_ERROR,
709 "Unsupported output transfer characteristics %d (%s)\n",
710 s->out_csp, av_color_space_name(s->out_csp));
712 return AVERROR(EINVAL);
717 fmt_identical = in_desc->log2_chroma_h == out_desc->log2_chroma_h &&
718 in_desc->log2_chroma_w == out_desc->log2_chroma_w;
719 s->yuv2yuv_fastmode = s->rgb2rgb_passthrough && fmt_identical;
720 s->yuv2yuv_passthrough = s->yuv2yuv_fastmode && s->in_rng == s->out_rng &&
721 !memcmp(s->in_lumacoef, s->out_lumacoef,
722 sizeof(*s->in_lumacoef)) &&
723 in_desc->comp[0].depth == out_desc->comp[0].depth;
724 if (!s->yuv2yuv_passthrough) {
726 double rgb2yuv[3][3], (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
727 int off, bits, in_rng;
729 res = get_range_off(&off, &s->in_y_rng, &s->in_uv_rng,
730 s->in_rng, in_desc->comp[0].depth);
732 av_log(ctx, AV_LOG_ERROR,
733 "Unsupported input color range %d (%s)\n",
734 s->in_rng, av_color_range_name(s->in_rng));
737 for (n = 0; n < 8; n++)
738 s->yuv_offset[0][n] = off;
739 fill_rgb2yuv_table(s->in_lumacoef, rgb2yuv);
740 invert_matrix3x3(rgb2yuv, yuv2rgb);
741 bits = 1 << (in_desc->comp[0].depth - 1);
742 for (n = 0; n < 3; n++) {
743 for (in_rng = s->in_y_rng, m = 0; m < 3; m++, in_rng = s->in_uv_rng) {
744 s->yuv2rgb_coeffs[n][m][0] = lrint(28672 * bits * yuv2rgb[n][m] / in_rng);
745 for (o = 1; o < 8; o++)
746 s->yuv2rgb_coeffs[n][m][o] = s->yuv2rgb_coeffs[n][m][0];
749 av_assert2(s->yuv2rgb_coeffs[0][1][0] == 0);
750 av_assert2(s->yuv2rgb_coeffs[2][2][0] == 0);
751 av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[1][0][0]);
752 av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[2][0][0]);
753 s->yuv2rgb = s->dsp.yuv2rgb[(in_desc->comp[0].depth - 8) >> 1]
754 [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
759 double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
760 int off, out_rng, bits;
762 res = get_range_off(&off, &s->out_y_rng, &s->out_uv_rng,
763 s->out_rng, out_desc->comp[0].depth);
765 av_log(ctx, AV_LOG_ERROR,
766 "Unsupported output color range %d (%s)\n",
767 s->out_rng, av_color_range_name(s->out_rng));
770 for (n = 0; n < 8; n++)
771 s->yuv_offset[1][n] = off;
772 fill_rgb2yuv_table(s->out_lumacoef, rgb2yuv);
773 bits = 1 << (29 - out_desc->comp[0].depth);
774 for (out_rng = s->out_y_rng, n = 0; n < 3; n++, out_rng = s->out_uv_rng) {
775 for (m = 0; m < 3; m++) {
776 s->rgb2yuv_coeffs[n][m][0] = lrint(bits * out_rng * rgb2yuv[n][m] / 28672);
777 for (o = 1; o < 8; o++)
778 s->rgb2yuv_coeffs[n][m][o] = s->rgb2yuv_coeffs[n][m][0];
781 av_assert2(s->rgb2yuv_coeffs[1][2][0] == s->rgb2yuv_coeffs[2][0][0]);
782 s->rgb2yuv = s->dsp.rgb2yuv[(out_desc->comp[0].depth - 8) >> 1]
783 [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
784 s->rgb2yuv_fsb = s->dsp.rgb2yuv_fsb[(out_desc->comp[0].depth - 8) >> 1]
785 [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
789 if (s->yuv2yuv_fastmode && (redo_yuv2rgb || redo_rgb2yuv)) {
790 int idepth = in_desc->comp[0].depth, odepth = out_desc->comp[0].depth;
791 double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
792 double (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
793 double yuv2yuv[3][3];
796 mul3x3(yuv2yuv, yuv2rgb, rgb2yuv);
797 for (out_rng = s->out_y_rng, m = 0; m < 3; m++, out_rng = s->out_uv_rng) {
798 for (in_rng = s->in_y_rng, n = 0; n < 3; n++, in_rng = s->in_uv_rng) {
799 s->yuv2yuv_coeffs[m][n][0] =
800 lrint(16384 * yuv2yuv[m][n] * out_rng * (1 << idepth) /
801 (in_rng * (1 << odepth)));
802 for (o = 1; o < 8; o++)
803 s->yuv2yuv_coeffs[m][n][o] = s->yuv2yuv_coeffs[m][n][0];
806 av_assert2(s->yuv2yuv_coeffs[1][0][0] == 0);
807 av_assert2(s->yuv2yuv_coeffs[2][0][0] == 0);
808 s->yuv2yuv = s->dsp.yuv2yuv[(idepth - 8) >> 1][(odepth - 8) >> 1]
809 [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
819 static int init(AVFilterContext *ctx)
821 ColorSpaceContext *s = ctx->priv;
823 ff_colorspacedsp_init(&s->dsp);
828 static void uninit(AVFilterContext *ctx)
830 ColorSpaceContext *s = ctx->priv;
832 av_freep(&s->rgb[0]);
833 av_freep(&s->rgb[1]);
834 av_freep(&s->rgb[2]);
836 av_freep(&s->dither_scratch_base[0][0]);
837 av_freep(&s->dither_scratch_base[0][1]);
838 av_freep(&s->dither_scratch_base[1][0]);
839 av_freep(&s->dither_scratch_base[1][1]);
840 av_freep(&s->dither_scratch_base[2][0]);
841 av_freep(&s->dither_scratch_base[2][1]);
843 av_freep(&s->lin_lut);
846 static int filter_frame(AVFilterLink *link, AVFrame *in)
848 AVFilterContext *ctx = link->dst;
849 AVFilterLink *outlink = ctx->outputs[0];
850 ColorSpaceContext *s = ctx->priv;
851 // FIXME if yuv2yuv_passthrough, don't get a new buffer but use the
852 // input one if it is writable *OR* the actual literal values of in_*
853 // and out_* are identical (not just their respective properties)
854 AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
856 ptrdiff_t rgb_stride = FFALIGN(in->width * sizeof(int16_t), 32);
857 unsigned rgb_sz = rgb_stride * in->height;
858 struct ThreadData td;
862 return AVERROR(ENOMEM);
864 av_frame_copy_props(out, in);
866 out->color_primaries = s->user_prm == AVCOL_PRI_UNSPECIFIED ?
867 default_prm[FFMIN(s->user_all, CS_NB)] : s->user_prm;
868 if (s->user_trc == AVCOL_TRC_UNSPECIFIED) {
869 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(out->format);
871 out->color_trc = default_trc[FFMIN(s->user_all, CS_NB)];
872 if (out->color_trc == AVCOL_TRC_BT2020_10 && desc && desc->comp[0].depth >= 12)
873 out->color_trc = AVCOL_TRC_BT2020_12;
875 out->color_trc = s->user_trc;
877 out->colorspace = s->user_csp == AVCOL_SPC_UNSPECIFIED ?
878 default_csp[FFMIN(s->user_all, CS_NB)] : s->user_csp;
879 out->color_range = s->user_rng == AVCOL_RANGE_UNSPECIFIED ?
880 in->color_range : s->user_rng;
881 if (rgb_sz != s->rgb_sz) {
882 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(out->format);
883 int uvw = in->width >> desc->log2_chroma_w;
885 av_freep(&s->rgb[0]);
886 av_freep(&s->rgb[1]);
887 av_freep(&s->rgb[2]);
889 av_freep(&s->dither_scratch_base[0][0]);
890 av_freep(&s->dither_scratch_base[0][1]);
891 av_freep(&s->dither_scratch_base[1][0]);
892 av_freep(&s->dither_scratch_base[1][1]);
893 av_freep(&s->dither_scratch_base[2][0]);
894 av_freep(&s->dither_scratch_base[2][1]);
896 s->rgb[0] = av_malloc(rgb_sz);
897 s->rgb[1] = av_malloc(rgb_sz);
898 s->rgb[2] = av_malloc(rgb_sz);
899 s->dither_scratch_base[0][0] =
900 av_malloc(sizeof(*s->dither_scratch_base[0][0]) * (in->width + 4));
901 s->dither_scratch_base[0][1] =
902 av_malloc(sizeof(*s->dither_scratch_base[0][1]) * (in->width + 4));
903 s->dither_scratch_base[1][0] =
904 av_malloc(sizeof(*s->dither_scratch_base[1][0]) * (uvw + 4));
905 s->dither_scratch_base[1][1] =
906 av_malloc(sizeof(*s->dither_scratch_base[1][1]) * (uvw + 4));
907 s->dither_scratch_base[2][0] =
908 av_malloc(sizeof(*s->dither_scratch_base[2][0]) * (uvw + 4));
909 s->dither_scratch_base[2][1] =
910 av_malloc(sizeof(*s->dither_scratch_base[2][1]) * (uvw + 4));
911 s->dither_scratch[0][0] = &s->dither_scratch_base[0][0][1];
912 s->dither_scratch[0][1] = &s->dither_scratch_base[0][1][1];
913 s->dither_scratch[1][0] = &s->dither_scratch_base[1][0][1];
914 s->dither_scratch[1][1] = &s->dither_scratch_base[1][1][1];
915 s->dither_scratch[2][0] = &s->dither_scratch_base[2][0][1];
916 s->dither_scratch[2][1] = &s->dither_scratch_base[2][1][1];
917 if (!s->rgb[0] || !s->rgb[1] || !s->rgb[2] ||
918 !s->dither_scratch_base[0][0] || !s->dither_scratch_base[0][1] ||
919 !s->dither_scratch_base[1][0] || !s->dither_scratch_base[1][1] ||
920 !s->dither_scratch_base[2][0] || !s->dither_scratch_base[2][1]) {
922 return AVERROR(ENOMEM);
926 res = create_filtergraph(ctx, in, out);
929 s->rgb_stride = rgb_stride / sizeof(int16_t);
932 td.in_linesize[0] = in->linesize[0];
933 td.in_linesize[1] = in->linesize[1];
934 td.in_linesize[2] = in->linesize[2];
935 td.out_linesize[0] = out->linesize[0];
936 td.out_linesize[1] = out->linesize[1];
937 td.out_linesize[2] = out->linesize[2];
938 td.in_ss_h = av_pix_fmt_desc_get(in->format)->log2_chroma_h;
939 td.out_ss_h = av_pix_fmt_desc_get(out->format)->log2_chroma_h;
940 if (s->yuv2yuv_passthrough) {
941 res = av_frame_copy(out, in);
945 ctx->internal->execute(ctx, convert, &td, NULL,
946 FFMIN((in->height + 1) >> 1, ctx->graph->nb_threads));
950 return ff_filter_frame(outlink, out);
953 static int query_formats(AVFilterContext *ctx)
955 static const enum AVPixelFormat pix_fmts[] = {
956 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
957 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
958 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
962 ColorSpaceContext *s = ctx->priv;
963 AVFilterFormats *formats = ff_make_format_list(pix_fmts);
966 return AVERROR(ENOMEM);
967 if (s->user_format == AV_PIX_FMT_NONE)
968 return ff_set_common_formats(ctx, formats);
969 res = ff_formats_ref(formats, &ctx->inputs[0]->out_formats);
973 res = ff_add_format(&formats, s->user_format);
977 return ff_formats_ref(formats, &ctx->outputs[0]->in_formats);
980 static int config_props(AVFilterLink *outlink)
982 AVFilterLink *inlink = outlink->src->inputs[0];
984 outlink->w = inlink->w;
985 outlink->h = inlink->h;
986 outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
987 outlink->time_base = inlink->time_base;
992 #define OFFSET(x) offsetof(ColorSpaceContext, x)
993 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
994 #define ENUM(x, y, z) { x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, z }
996 static const AVOption colorspace_options[] = {
997 { "all", "Set all color properties together",
998 OFFSET(user_all), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
999 CS_UNSPECIFIED, CS_NB - 1, FLAGS, "all" },
1000 ENUM("bt470m", CS_BT470M, "all"),
1001 ENUM("bt470bg", CS_BT470BG, "all"),
1002 ENUM("bt601-6-525", CS_BT601_6_525, "all"),
1003 ENUM("bt601-6-625", CS_BT601_6_625, "all"),
1004 ENUM("bt709", CS_BT709, "all"),
1005 ENUM("smpte170m", CS_SMPTE170M, "all"),
1006 ENUM("smpte240m", CS_SMPTE240M, "all"),
1007 ENUM("bt2020", CS_BT2020, "all"),
1009 { "space", "Output colorspace",
1010 OFFSET(user_csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
1011 AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "csp" },
1012 ENUM("bt709", AVCOL_SPC_BT709, "csp"),
1013 ENUM("fcc", AVCOL_SPC_FCC, "csp"),
1014 ENUM("bt470bg", AVCOL_SPC_BT470BG, "csp"),
1015 ENUM("smpte170m", AVCOL_SPC_SMPTE170M, "csp"),
1016 ENUM("smpte240m", AVCOL_SPC_SMPTE240M, "csp"),
1017 ENUM("bt2020ncl", AVCOL_SPC_BT2020_NCL, "csp"),
1019 { "range", "Output color range",
1020 OFFSET(user_rng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
1021 AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_NB - 1, FLAGS, "rng" },
1022 ENUM("mpeg", AVCOL_RANGE_MPEG, "rng"),
1023 ENUM("jpeg", AVCOL_RANGE_JPEG, "rng"),
1025 { "primaries", "Output color primaries",
1026 OFFSET(user_prm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
1027 AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "prm" },
1028 ENUM("bt709", AVCOL_PRI_BT709, "prm"),
1029 ENUM("bt470m", AVCOL_PRI_BT470M, "prm"),
1030 ENUM("bt470bg", AVCOL_PRI_BT470BG, "prm"),
1031 ENUM("smpte170m", AVCOL_PRI_SMPTE170M, "prm"),
1032 ENUM("smpte240m", AVCOL_PRI_SMPTE240M, "prm"),
1033 ENUM("bt2020", AVCOL_PRI_BT2020, "prm"),
1035 { "trc", "Output transfer characteristics",
1036 OFFSET(user_trc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
1037 AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, "trc" },
1038 ENUM("bt709", AVCOL_TRC_BT709, "trc"),
1039 ENUM("gamma22", AVCOL_TRC_GAMMA22, "trc"),
1040 ENUM("gamma28", AVCOL_TRC_GAMMA28, "trc"),
1041 ENUM("smpte170m", AVCOL_TRC_SMPTE170M, "trc"),
1042 ENUM("smpte240m", AVCOL_TRC_SMPTE240M, "trc"),
1043 ENUM("bt2020-10", AVCOL_TRC_BT2020_10, "trc"),
1044 ENUM("bt2020-12", AVCOL_TRC_BT2020_12, "trc"),
1046 { "format", "Output pixel format",
1047 OFFSET(user_format), AV_OPT_TYPE_INT, { .i64 = AV_PIX_FMT_NONE },
1048 AV_PIX_FMT_NONE, AV_PIX_FMT_GBRAP12LE, FLAGS, "fmt" },
1049 ENUM("yuv420p", AV_PIX_FMT_YUV420P, "fmt"),
1050 ENUM("yuv420p10", AV_PIX_FMT_YUV420P10, "fmt"),
1051 ENUM("yuv420p12", AV_PIX_FMT_YUV420P12, "fmt"),
1052 ENUM("yuv422p", AV_PIX_FMT_YUV422P, "fmt"),
1053 ENUM("yuv422p10", AV_PIX_FMT_YUV422P10, "fmt"),
1054 ENUM("yuv422p12", AV_PIX_FMT_YUV422P12, "fmt"),
1055 ENUM("yuv444p", AV_PIX_FMT_YUV444P, "fmt"),
1056 ENUM("yuv444p10", AV_PIX_FMT_YUV444P10, "fmt"),
1057 ENUM("yuv444p12", AV_PIX_FMT_YUV444P12, "fmt"),
1059 { "fast", "Ignore primary chromaticity and gamma correction",
1060 OFFSET(fast_mode), AV_OPT_TYPE_BOOL, { .i64 = 0 },
1063 { "dither", "Dithering mode",
1064 OFFSET(dither), AV_OPT_TYPE_INT, { .i64 = DITHER_NONE },
1065 DITHER_NONE, DITHER_NB - 1, FLAGS, "dither" },
1066 ENUM("none", DITHER_NONE, "dither"),
1067 ENUM("fsb", DITHER_FSB, "dither"),
1069 { "wpadapt", "Whitepoint adaptation method",
1070 OFFSET(wp_adapt), AV_OPT_TYPE_INT, { .i64 = WP_ADAPT_BRADFORD },
1071 WP_ADAPT_BRADFORD, NB_WP_ADAPT - 1, FLAGS, "wpadapt" },
1072 ENUM("bradford", WP_ADAPT_BRADFORD, "wpadapt"),
1073 ENUM("vonkries", WP_ADAPT_VON_KRIES, "wpadapt"),
1074 ENUM("identity", WP_ADAPT_IDENTITY, "wpadapt"),
1079 AVFILTER_DEFINE_CLASS(colorspace);
1081 static const AVFilterPad inputs[] = {
1084 .type = AVMEDIA_TYPE_VIDEO,
1085 .filter_frame = filter_frame,
1090 static const AVFilterPad outputs[] = {
1093 .type = AVMEDIA_TYPE_VIDEO,
1094 .config_props = config_props,
1099 AVFilter ff_vf_colorspace = {
1100 .name = "colorspace",
1101 .description = NULL_IF_CONFIG_SMALL("Convert between colorspaces."),
1104 .query_formats = query_formats,
1105 .priv_size = sizeof(ColorSpaceContext),
1106 .priv_class = &colorspace_class,
1109 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,