FFmpeg coverage

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
3			*
4			* This file is part of FFmpeg.
5			*
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.
10			*
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.
15			*
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
19			*/
20
21			/*
22			* @file
23			* Convert between colorspaces.
24			*/
25
26			#include "libavutil/avassert.h"
27			#include "libavutil/csp.h"
28			#include "libavutil/mem.h"
29			#include "libavutil/mem_internal.h"
30			#include "libavutil/opt.h"
31			#include "libavutil/pixdesc.h"
32			#include "libavutil/pixfmt.h"
33
34			#include "avfilter.h"
35			#include "colorspacedsp.h"
36			#include "formats.h"
37			#include "internal.h"
38			#include "video.h"
39			#include "colorspace.h"
40
41			enum DitherMode {
42			DITHER_NONE,
43			DITHER_FSB,
44			DITHER_NB,
45			};
46
47			enum Colorspace {
48			CS_UNSPECIFIED,
49			CS_BT470M,
50			CS_BT470BG,
51			CS_BT601_6_525,
52			CS_BT601_6_625,
53			CS_BT709,
54			CS_SMPTE170M,
55			CS_SMPTE240M,
56			CS_BT2020,
57			CS_NB,
58			};
59
60			enum WhitepointAdaptation {
61			WP_ADAPT_BRADFORD,
62			WP_ADAPT_VON_KRIES,
63			NB_WP_ADAPT_NON_IDENTITY,
64			WP_ADAPT_IDENTITY = NB_WP_ADAPT_NON_IDENTITY,
65			NB_WP_ADAPT,
66			};
67
68			static const enum AVColorTransferCharacteristic default_trc[CS_NB + 1] = {
69			[CS_UNSPECIFIED] = AVCOL_TRC_UNSPECIFIED,
70			[CS_BT470M] = AVCOL_TRC_GAMMA22,
71			[CS_BT470BG] = AVCOL_TRC_GAMMA28,
72			[CS_BT601_6_525] = AVCOL_TRC_SMPTE170M,
73			[CS_BT601_6_625] = AVCOL_TRC_SMPTE170M,
74			[CS_BT709] = AVCOL_TRC_BT709,
75			[CS_SMPTE170M] = AVCOL_TRC_SMPTE170M,
76			[CS_SMPTE240M] = AVCOL_TRC_SMPTE240M,
77			[CS_BT2020] = AVCOL_TRC_BT2020_10,
78			[CS_NB] = AVCOL_TRC_UNSPECIFIED,
79			};
80
81			static const enum AVColorPrimaries default_prm[CS_NB + 1] = {
82			[CS_UNSPECIFIED] = AVCOL_PRI_UNSPECIFIED,
83			[CS_BT470M] = AVCOL_PRI_BT470M,
84			[CS_BT470BG] = AVCOL_PRI_BT470BG,
85			[CS_BT601_6_525] = AVCOL_PRI_SMPTE170M,
86			[CS_BT601_6_625] = AVCOL_PRI_BT470BG,
87			[CS_BT709] = AVCOL_PRI_BT709,
88			[CS_SMPTE170M] = AVCOL_PRI_SMPTE170M,
89			[CS_SMPTE240M] = AVCOL_PRI_SMPTE240M,
90			[CS_BT2020] = AVCOL_PRI_BT2020,
91			[CS_NB] = AVCOL_PRI_UNSPECIFIED,
92			};
93
94			static const enum AVColorSpace default_csp[CS_NB + 1] = {
95			[CS_UNSPECIFIED] = AVCOL_SPC_UNSPECIFIED,
96			[CS_BT470M] = AVCOL_SPC_SMPTE170M,
97			[CS_BT470BG] = AVCOL_SPC_BT470BG,
98			[CS_BT601_6_525] = AVCOL_SPC_SMPTE170M,
99			[CS_BT601_6_625] = AVCOL_SPC_BT470BG,
100			[CS_BT709] = AVCOL_SPC_BT709,
101			[CS_SMPTE170M] = AVCOL_SPC_SMPTE170M,
102			[CS_SMPTE240M] = AVCOL_SPC_SMPTE240M,
103			[CS_BT2020] = AVCOL_SPC_BT2020_NCL,
104			[CS_NB] = AVCOL_SPC_UNSPECIFIED,
105			};
106
107			struct TransferCharacteristics {
108			double alpha, beta, gamma, delta;
109			};
110
111			typedef struct ColorSpaceContext {
112			const AVClass *class;
113
114			ColorSpaceDSPContext dsp;
115
116			enum Colorspace user_all, user_iall;
117			enum AVColorSpace in_csp, out_csp, user_csp, user_icsp;
118			enum AVColorRange in_rng, out_rng, user_rng, user_irng;
119			enum AVColorTransferCharacteristic in_trc, out_trc, user_trc, user_itrc;
120			enum AVColorPrimaries in_prm, out_prm, user_prm, user_iprm;
121			enum AVPixelFormat in_format, user_format;
122			int fast_mode;
123			enum DitherMode dither;
124			enum WhitepointAdaptation wp_adapt;
125
126			int16_t *rgb[3];
127			ptrdiff_t rgb_stride;
128			unsigned rgb_sz;
129			int *dither_scratch[3][2], *dither_scratch_base[3][2];
130
131			const AVColorPrimariesDesc *in_primaries, *out_primaries;
132			int lrgb2lrgb_passthrough;
133			DECLARE_ALIGNED(16, int16_t, lrgb2lrgb_coeffs)[3][3][8];
134
135			const struct TransferCharacteristics *in_txchr, *out_txchr;
136			int rgb2rgb_passthrough;
137			int16_t *lin_lut, *delin_lut;
138
139			const AVLumaCoefficients *in_lumacoef, *out_lumacoef;
140			int yuv2yuv_passthrough, yuv2yuv_fastmode;
141			DECLARE_ALIGNED(16, int16_t, yuv2rgb_coeffs)[3][3][8];
142			DECLARE_ALIGNED(16, int16_t, rgb2yuv_coeffs)[3][3][8];
143			DECLARE_ALIGNED(16, int16_t, yuv2yuv_coeffs)[3][3][8];
144			DECLARE_ALIGNED(16, int16_t, yuv_offset)[2 /* in, out */][8];
145			yuv2rgb_fn yuv2rgb;
146			rgb2yuv_fn rgb2yuv;
147			rgb2yuv_fsb_fn rgb2yuv_fsb;
148			yuv2yuv_fn yuv2yuv;
149			double yuv2rgb_dbl_coeffs[3][3], rgb2yuv_dbl_coeffs[3][3];
150			int in_y_rng, in_uv_rng, out_y_rng, out_uv_rng;
151
152			int did_warn_range;
153			} ColorSpaceContext;
154
155			// FIXME deal with odd width/heights
156			// FIXME faster linearize/delinearize implementation (integer pow)
157			// FIXME bt2020cl support (linearization between yuv/rgb step instead of between rgb/xyz)
158			// FIXME test that the values in (de)lin_lut don't exceed their container storage
159			// type size (only useful if we keep the LUT and don't move to fast integer pow)
160			// FIXME dithering if bitdepth goes down?
161			// FIXME bitexact for fate integration?
162
163			// FIXME I'm pretty sure gamma22/28 also have a linear toe slope, but I can't
164			// find any actual tables that document their real values...
165			// See http://www.13thmonkey.org/~boris/gammacorrection/ first graph why it matters
166			static const struct TransferCharacteristics transfer_characteristics[AVCOL_TRC_NB] = {
167			[AVCOL_TRC_BT709] = { 1.099, 0.018, 0.45, 4.5 },
168			[AVCOL_TRC_GAMMA22] = { 1.0, 0.0, 1.0 / 2.2, 0.0 },
169			[AVCOL_TRC_GAMMA28] = { 1.0, 0.0, 1.0 / 2.8, 0.0 },
170			[AVCOL_TRC_SMPTE170M] = { 1.099, 0.018, 0.45, 4.5 },
171			[AVCOL_TRC_SMPTE240M] = { 1.1115, 0.0228, 0.45, 4.0 },
172			[AVCOL_TRC_LINEAR] = { 1.0, 0.0, 1.0, 0.0 },
173			[AVCOL_TRC_IEC61966_2_1] = { 1.055, 0.0031308, 1.0 / 2.4, 12.92 },
174			[AVCOL_TRC_IEC61966_2_4] = { 1.099, 0.018, 0.45, 4.5 },
175			[AVCOL_TRC_BT2020_10] = { 1.099, 0.018, 0.45, 4.5 },
176			[AVCOL_TRC_BT2020_12] = { 1.0993, 0.0181, 0.45, 4.5 },
177			};
178
179			static const struct TransferCharacteristics *
180		✗	get_transfer_characteristics(enum AVColorTransferCharacteristic trc)
181			{
182			const struct TransferCharacteristics *coeffs;
183
184		✗	if (trc >= AVCOL_TRC_NB)
185		✗	return NULL;
186		✗	coeffs = &transfer_characteristics[trc];
187		✗	if (!coeffs->alpha)
188		✗	return NULL;
189
190		✗	return coeffs;
191			}
192
193		✗	static int fill_gamma_table(ColorSpaceContext *s)
194			{
195			int n;
196		✗	double in_alpha = s->in_txchr->alpha, in_beta = s->in_txchr->beta;
197		✗	double in_gamma = s->in_txchr->gamma, in_delta = s->in_txchr->delta;
198		✗	double in_ialpha = 1.0 / in_alpha, in_igamma = 1.0 / in_gamma, in_idelta = 1.0 / in_delta;
199		✗	double out_alpha = s->out_txchr->alpha, out_beta = s->out_txchr->beta;
200		✗	double out_gamma = s->out_txchr->gamma, out_delta = s->out_txchr->delta;
201
202		✗	s->lin_lut = av_malloc(sizeof(*s->lin_lut) * 32768 * 2);
203		✗	if (!s->lin_lut)
204		✗	return AVERROR(ENOMEM);
205		✗	s->delin_lut = &s->lin_lut[32768];
206		✗	for (n = 0; n < 32768; n++) {
207		✗	double v = (n - 2048.0) / 28672.0, d, l;
208
209			// delinearize
210		✗	if (v <= -out_beta) {
211		✗	d = -out_alpha * pow(-v, out_gamma) + (out_alpha - 1.0);
212		✗	} else if (v < out_beta) {
213		✗	d = out_delta * v;
214			} else {
215		✗	d = out_alpha * pow(v, out_gamma) - (out_alpha - 1.0);
216			}
217		✗	s->delin_lut[n] = av_clip_int16(lrint(d * 28672.0));
218
219			// linearize
220		✗	if (v <= -in_beta * in_delta) {
221		✗	l = -pow((1.0 - in_alpha - v) * in_ialpha, in_igamma);
222		✗	} else if (v < in_beta * in_delta) {
223		✗	l = v * in_idelta;
224			} else {
225		✗	l = pow((v + in_alpha - 1.0) * in_ialpha, in_igamma);
226			}
227		✗	s->lin_lut[n] = av_clip_int16(lrint(l * 28672.0));
228			}
229
230		✗	return 0;
231			}
232
233			/*
234			* See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html
235			* This function uses the Bradford mechanism.
236			*/
237		✗	static void fill_whitepoint_conv_table(double out[3][3], enum WhitepointAdaptation wp_adapt,
238			const AVWhitepointCoefficients *wp_src,
239			const AVWhitepointCoefficients *wp_dst)
240			{
241			static const double ma_tbl[NB_WP_ADAPT_NON_IDENTITY][3][3] = {
242			[WP_ADAPT_BRADFORD] = {
243			{ 0.8951, 0.2664, -0.1614 },
244			{ -0.7502, 1.7135, 0.0367 },
245			{ 0.0389, -0.0685, 1.0296 },
246			}, [WP_ADAPT_VON_KRIES] = {
247			{ 0.40024, 0.70760, -0.08081 },
248			{ -0.22630, 1.16532, 0.04570 },
249			{ 0.00000, 0.00000, 0.91822 },
250			},
251			};
252		✗	const double (*ma)[3] = ma_tbl[wp_adapt];
253		✗	double xw_src = av_q2d(wp_src->x), yw_src = av_q2d(wp_src->y);
254		✗	double xw_dst = av_q2d(wp_dst->x), yw_dst = av_q2d(wp_dst->y);
255		✗	double zw_src = 1.0 - xw_src - yw_src;
256		✗	double zw_dst = 1.0 - xw_dst - yw_dst;
257			double mai[3][3], fac[3][3], tmp[3][3];
258			double rs, gs, bs, rd, gd, bd;
259
260		✗	ff_matrix_invert_3x3(ma, mai);
261		✗	rs = ma[0][0] * xw_src + ma[0][1] * yw_src + ma[0][2] * zw_src;
262		✗	gs = ma[1][0] * xw_src + ma[1][1] * yw_src + ma[1][2] * zw_src;
263		✗	bs = ma[2][0] * xw_src + ma[2][1] * yw_src + ma[2][2] * zw_src;
264		✗	rd = ma[0][0] * xw_dst + ma[0][1] * yw_dst + ma[0][2] * zw_dst;
265		✗	gd = ma[1][0] * xw_dst + ma[1][1] * yw_dst + ma[1][2] * zw_dst;
266		✗	bd = ma[2][0] * xw_dst + ma[2][1] * yw_dst + ma[2][2] * zw_dst;
267		✗	fac[0][0] = rd / rs;
268		✗	fac[1][1] = gd / gs;
269		✗	fac[2][2] = bd / bs;
270		✗	fac[0][1] = fac[0][2] = fac[1][0] = fac[1][2] = fac[2][0] = fac[2][1] = 0.0;
271		✗	ff_matrix_mul_3x3(tmp, ma, fac);
272		✗	ff_matrix_mul_3x3(out, tmp, mai);
273		✗	}
274
275		✗	static void apply_lut(int16_t *buf[3], ptrdiff_t stride,
276			int w, int h, const int16_t *lut)
277			{
278			int y, x, n;
279
280		✗	for (n = 0; n < 3; n++) {
281		✗	int16_t *data = buf[n];
282
283		✗	for (y = 0; y < h; y++) {
284		✗	for (x = 0; x < w; x++)
285		✗	data[x] = lut[av_clip_uintp2(2048 + data[x], 15)];
286
287		✗	data += stride;
288			}
289			}
290		✗	}
291
292			typedef struct ThreadData {
293			AVFrame *in, *out;
294			ptrdiff_t in_linesize[3], out_linesize[3];
295			int in_ss_h, out_ss_h;
296			} ThreadData;
297
298		✗	static int convert(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
299			{
300		✗	const ThreadData *td = data;
301		✗	ColorSpaceContext *s = ctx->priv;
302			uint8_t *in_data[3], *out_data[3];
303			int16_t *rgb[3];
304		✗	int h_in = (td->in->height + 1) >> 1;
305		✗	int h1 = 2 * (job_nr * h_in / n_jobs), h2 = 2 * ((job_nr + 1) * h_in / n_jobs);
306		✗	int w = td->in->width, h = h2 - h1;
307
308		✗	in_data[0] = td->in->data[0] + td->in_linesize[0] * h1;
309		✗	in_data[1] = td->in->data[1] + td->in_linesize[1] * (h1 >> td->in_ss_h);
310		✗	in_data[2] = td->in->data[2] + td->in_linesize[2] * (h1 >> td->in_ss_h);
311		✗	out_data[0] = td->out->data[0] + td->out_linesize[0] * h1;
312		✗	out_data[1] = td->out->data[1] + td->out_linesize[1] * (h1 >> td->out_ss_h);
313		✗	out_data[2] = td->out->data[2] + td->out_linesize[2] * (h1 >> td->out_ss_h);
314		✗	rgb[0] = s->rgb[0] + s->rgb_stride * h1;
315		✗	rgb[1] = s->rgb[1] + s->rgb_stride * h1;
316		✗	rgb[2] = s->rgb[2] + s->rgb_stride * h1;
317
318			// FIXME for simd, also make sure we do pictures with negative stride
319			// top-down so we don't overwrite lines with padding of data before it
320			// in the same buffer (same as swscale)
321
322		✗	if (s->yuv2yuv_fastmode) {
323			// FIXME possibly use a fast mode in case only the y range changes?
324			// since in that case, only the diagonal entries in yuv2yuv_coeffs[]
325			// are non-zero
326		✗	s->yuv2yuv(out_data, td->out_linesize, in_data, td->in_linesize, w, h,
327		✗	s->yuv2yuv_coeffs, s->yuv_offset);
328			} else {
329			// FIXME maybe (for caching efficiency) do pipeline per-line instead of
330			// full buffer per function? (Or, since yuv2rgb requires 2 lines: per
331			// 2 lines, for yuv420.)
332			/*
333			* General design:
334			* - yuv2rgb converts from whatever range the input was ([16-235/240] or
335			* [0,255] or the 10/12bpp equivalents thereof) to an integer version
336			* of RGB in psuedo-restricted 15+sign bits. That means that the float
337			* range [0.0,1.0] is in [0,28762], and the remainder of the int16_t
338			* range is used for overflow/underflow outside the representable
339			* range of this RGB type. rgb2yuv is the exact opposite.
340			* - gamma correction is done using a LUT since that appears to work
341			* fairly fast.
342			* - If the input is chroma-subsampled (420/422), the yuv2rgb conversion
343			* (or rgb2yuv conversion) uses nearest-neighbour sampling to read
344			* read chroma pixels at luma resolution. If you want some more fancy
345			* filter, you can use swscale to convert to yuv444p.
346			* - all coefficients are 14bit (so in the [-2.0,2.0] range).
347			*/
348		✗	s->yuv2rgb(rgb, s->rgb_stride, in_data, td->in_linesize, w, h,
349		✗	s->yuv2rgb_coeffs, s->yuv_offset[0]);
350		✗	if (!s->rgb2rgb_passthrough) {
351		✗	apply_lut(rgb, s->rgb_stride, w, h, s->lin_lut);
352		✗	if (!s->lrgb2lrgb_passthrough)
353		✗	s->dsp.multiply3x3(rgb, s->rgb_stride, w, h, s->lrgb2lrgb_coeffs);
354		✗	apply_lut(rgb, s->rgb_stride, w, h, s->delin_lut);
355			}
356		✗	if (s->dither == DITHER_FSB) {
357		✗	s->rgb2yuv_fsb(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
358		✗	s->rgb2yuv_coeffs, s->yuv_offset[1], s->dither_scratch);
359			} else {
360		✗	s->rgb2yuv(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
361		✗	s->rgb2yuv_coeffs, s->yuv_offset[1]);
362			}
363			}
364
365		✗	return 0;
366			}
367
368		✗	static int get_range_off(AVFilterContext *ctx, int *off,
369			int *y_rng, int *uv_rng,
370			enum AVColorRange rng, int depth)
371			{
372		✗	switch (rng) {
373		✗	case AVCOL_RANGE_UNSPECIFIED: {
374		✗	ColorSpaceContext *s = ctx->priv;
375
376		✗	if (!s->did_warn_range) {
377		✗	av_log(ctx, AV_LOG_WARNING, "Input range not set, assuming tv/mpeg\n");
378		✗	s->did_warn_range = 1;
379			}
380			}
381			// fall-through
382			case AVCOL_RANGE_MPEG:
383		✗	*off = 16 << (depth - 8);
384		✗	*y_rng = 219 << (depth - 8);
385		✗	*uv_rng = 224 << (depth - 8);
386		✗	break;
387		✗	case AVCOL_RANGE_JPEG:
388		✗	*off = 0;
389		✗	*y_rng = *uv_rng = (256 << (depth - 8)) - 1;
390		✗	break;
391		✗	default:
392		✗	return AVERROR(EINVAL);
393			}
394
395		✗	return 0;
396			}
397
398		✗	static int create_filtergraph(AVFilterContext *ctx,
399			const AVFrame *in, const AVFrame *out)
400			{
401		✗	ColorSpaceContext *s = ctx->priv;
402		✗	const AVPixFmtDescriptor *in_desc = av_pix_fmt_desc_get(in->format);
403		✗	const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(out->format);
404		✗	int m, n, o, res, fmt_identical, redo_yuv2rgb = 0, redo_rgb2yuv = 0;
405
406			#define supported_depth(d) ((d) == 8 || (d) == 10 || (d) == 12)
407			#define supported_subsampling(lcw, lch) \
408			(((lcw) == 0 && (lch) == 0) || ((lcw) == 1 && (lch) == 0) || ((lcw) == 1 && (lch) == 1))
409			#define supported_format(d) \
410			((d) != NULL && (d)->nb_components == 3 && \
411			!((d)->flags & AV_PIX_FMT_FLAG_RGB) && \
412			supported_depth((d)->comp[0].depth) && \
413			supported_subsampling((d)->log2_chroma_w, (d)->log2_chroma_h))
414
415		✗	if (!supported_format(in_desc)) {
416		✗	av_log(ctx, AV_LOG_ERROR,
417			"Unsupported input format %d (%s) or bitdepth (%d)\n",
418		✗	in->format, av_get_pix_fmt_name(in->format),
419			in_desc ? in_desc->comp[0].depth : -1);
420		✗	return AVERROR(EINVAL);
421			}
422		✗	if (!supported_format(out_desc)) {
423		✗	av_log(ctx, AV_LOG_ERROR,
424			"Unsupported output format %d (%s) or bitdepth (%d)\n",
425		✗	out->format, av_get_pix_fmt_name(out->format),
426			out_desc ? out_desc->comp[0].depth : -1);
427		✗	return AVERROR(EINVAL);
428			}
429
430		✗	if (in->color_primaries != s->in_prm) s->in_primaries = NULL;
431		✗	if (out->color_primaries != s->out_prm) s->out_primaries = NULL;
432		✗	if (in->color_trc != s->in_trc) s->in_txchr = NULL;
433		✗	if (out->color_trc != s->out_trc) s->out_txchr = NULL;
434		✗	if (in->colorspace != s->in_csp ||
435		✗	in->color_range != s->in_rng) s->in_lumacoef = NULL;
436		✗	if (out->color_range != s->out_rng) s->rgb2yuv = NULL;
437
438		✗	if (!s->out_primaries || !s->in_primaries) {
439		✗	s->in_prm = in->color_primaries;
440		✗	if (s->user_iall != CS_UNSPECIFIED)
441		✗	s->in_prm = default_prm[FFMIN(s->user_iall, CS_NB)];
442		✗	if (s->user_iprm != AVCOL_PRI_UNSPECIFIED)
443		✗	s->in_prm = s->user_iprm;
444		✗	s->in_primaries = av_csp_primaries_desc_from_id(s->in_prm);
445		✗	if (!s->in_primaries) {
446		✗	av_log(ctx, AV_LOG_ERROR,
447			"Unsupported input primaries %d (%s)\n",
448		✗	s->in_prm, av_color_primaries_name(s->in_prm));
449		✗	return AVERROR(EINVAL);
450			}
451		✗	s->out_prm = out->color_primaries;
452		✗	s->out_primaries = av_csp_primaries_desc_from_id(s->out_prm);
453		✗	if (!s->out_primaries) {
454		✗	if (s->out_prm == AVCOL_PRI_UNSPECIFIED) {
455		✗	if (s->user_all == CS_UNSPECIFIED) {
456		✗	av_log(ctx, AV_LOG_ERROR, "Please specify output primaries\n");
457			} else {
458		✗	av_log(ctx, AV_LOG_ERROR,
459		✗	"Unsupported output color property %d\n", s->user_all);
460			}
461			} else {
462		✗	av_log(ctx, AV_LOG_ERROR,
463			"Unsupported output primaries %d (%s)\n",
464		✗	s->out_prm, av_color_primaries_name(s->out_prm));
465			}
466		✗	return AVERROR(EINVAL);
467			}
468		✗	s->lrgb2lrgb_passthrough = !memcmp(s->in_primaries, s->out_primaries,
469			sizeof(*s->in_primaries));
470		✗	if (!s->lrgb2lrgb_passthrough) {
471			double rgb2xyz[3][3], xyz2rgb[3][3], rgb2rgb[3][3];
472			const AVWhitepointCoefficients *wp_out, *wp_in;
473
474		✗	wp_out = &s->out_primaries->wp;
475		✗	wp_in = &s->in_primaries->wp;
476		✗	ff_fill_rgb2xyz_table(&s->out_primaries->prim, wp_out, rgb2xyz);
477		✗	ff_matrix_invert_3x3(rgb2xyz, xyz2rgb);
478		✗	ff_fill_rgb2xyz_table(&s->in_primaries->prim, wp_in, rgb2xyz);
479		✗	if (memcmp(wp_in, wp_out, sizeof(*wp_in)) != 0 &&
480		✗	s->wp_adapt != WP_ADAPT_IDENTITY) {
481			double wpconv[3][3], tmp[3][3];
482
483		✗	fill_whitepoint_conv_table(wpconv, s->wp_adapt, &s->in_primaries->wp,
484		✗	&s->out_primaries->wp);
485		✗	ff_matrix_mul_3x3(tmp, rgb2xyz, wpconv);
486		✗	ff_matrix_mul_3x3(rgb2rgb, tmp, xyz2rgb);
487			} else {
488		✗	ff_matrix_mul_3x3(rgb2rgb, rgb2xyz, xyz2rgb);
489			}
490		✗	for (m = 0; m < 3; m++)
491		✗	for (n = 0; n < 3; n++) {
492		✗	s->lrgb2lrgb_coeffs[m][n][0] = lrint(16384.0 * rgb2rgb[m][n]);
493		✗	for (o = 1; o < 8; o++)
494		✗	s->lrgb2lrgb_coeffs[m][n][o] = s->lrgb2lrgb_coeffs[m][n][0];
495			}
496
497			}
498			}
499
500		✗	if (!s->in_txchr) {
501		✗	av_freep(&s->lin_lut);
502		✗	s->in_trc = in->color_trc;
503		✗	if (s->user_iall != CS_UNSPECIFIED)
504		✗	s->in_trc = default_trc[FFMIN(s->user_iall, CS_NB)];
505		✗	if (s->user_itrc != AVCOL_TRC_UNSPECIFIED)
506		✗	s->in_trc = s->user_itrc;
507		✗	s->in_txchr = get_transfer_characteristics(s->in_trc);
508		✗	if (!s->in_txchr) {
509		✗	av_log(ctx, AV_LOG_ERROR,
510			"Unsupported input transfer characteristics %d (%s)\n",
511		✗	s->in_trc, av_color_transfer_name(s->in_trc));
512		✗	return AVERROR(EINVAL);
513			}
514			}
515
516		✗	if (!s->out_txchr) {
517		✗	av_freep(&s->lin_lut);
518		✗	s->out_trc = out->color_trc;
519		✗	s->out_txchr = get_transfer_characteristics(s->out_trc);
520		✗	if (!s->out_txchr) {
521		✗	if (s->out_trc == AVCOL_TRC_UNSPECIFIED) {
522		✗	if (s->user_all == CS_UNSPECIFIED) {
523		✗	av_log(ctx, AV_LOG_ERROR,
524			"Please specify output transfer characteristics\n");
525			} else {
526		✗	av_log(ctx, AV_LOG_ERROR,
527		✗	"Unsupported output color property %d\n", s->user_all);
528			}
529			} else {
530		✗	av_log(ctx, AV_LOG_ERROR,
531			"Unsupported output transfer characteristics %d (%s)\n",
532		✗	s->out_trc, av_color_transfer_name(s->out_trc));
533			}
534		✗	return AVERROR(EINVAL);
535			}
536			}
537
538		✗	s->rgb2rgb_passthrough = s->fast_mode || (s->lrgb2lrgb_passthrough &&
539		✗	!memcmp(s->in_txchr, s->out_txchr, sizeof(*s->in_txchr)));
540		✗	if (!s->rgb2rgb_passthrough && !s->lin_lut) {
541		✗	res = fill_gamma_table(s);
542		✗	if (res < 0)
543		✗	return res;
544			}
545
546		✗	if (!s->in_lumacoef) {
547		✗	s->in_csp = in->colorspace;
548		✗	if (s->user_iall != CS_UNSPECIFIED)
549		✗	s->in_csp = default_csp[FFMIN(s->user_iall, CS_NB)];
550		✗	if (s->user_icsp != AVCOL_SPC_UNSPECIFIED)
551		✗	s->in_csp = s->user_icsp;
552		✗	s->in_rng = in->color_range;
553		✗	if (s->user_irng != AVCOL_RANGE_UNSPECIFIED)
554		✗	s->in_rng = s->user_irng;
555		✗	s->in_lumacoef = av_csp_luma_coeffs_from_avcsp(s->in_csp);
556		✗	if (!s->in_lumacoef) {
557		✗	av_log(ctx, AV_LOG_ERROR,
558			"Unsupported input colorspace %d (%s)\n",
559		✗	s->in_csp, av_color_space_name(s->in_csp));
560		✗	return AVERROR(EINVAL);
561			}
562		✗	redo_yuv2rgb = 1;
563			}
564
565		✗	if (!s->rgb2yuv) {
566		✗	s->out_rng = out->color_range;
567		✗	redo_rgb2yuv = 1;
568			}
569
570		✗	fmt_identical = in_desc->log2_chroma_h == out_desc->log2_chroma_h &&
571		✗	in_desc->log2_chroma_w == out_desc->log2_chroma_w;
572		✗	s->yuv2yuv_fastmode = s->rgb2rgb_passthrough && fmt_identical;
573		✗	s->yuv2yuv_passthrough = s->yuv2yuv_fastmode && s->in_rng == s->out_rng &&
574		✗	!memcmp(s->in_lumacoef, s->out_lumacoef,
575		✗	sizeof(*s->in_lumacoef)) &&
576		✗	in_desc->comp[0].depth == out_desc->comp[0].depth;
577		✗	if (!s->yuv2yuv_passthrough) {
578		✗	if (redo_yuv2rgb) {
579		✗	double rgb2yuv[3][3], (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
580			int off, bits, in_rng;
581
582		✗	res = get_range_off(ctx, &off, &s->in_y_rng, &s->in_uv_rng,
583		✗	s->in_rng, in_desc->comp[0].depth);
584		✗	if (res < 0) {
585		✗	av_log(ctx, AV_LOG_ERROR,
586			"Unsupported input color range %d (%s)\n",
587		✗	s->in_rng, av_color_range_name(s->in_rng));
588		✗	return res;
589			}
590		✗	for (n = 0; n < 8; n++)
591		✗	s->yuv_offset[0][n] = off;
592		✗	ff_fill_rgb2yuv_table(s->in_lumacoef, rgb2yuv);
593		✗	ff_matrix_invert_3x3(rgb2yuv, yuv2rgb);
594		✗	bits = 1 << (in_desc->comp[0].depth - 1);
595		✗	for (n = 0; n < 3; n++) {
596		✗	for (in_rng = s->in_y_rng, m = 0; m < 3; m++, in_rng = s->in_uv_rng) {
597		✗	s->yuv2rgb_coeffs[n][m][0] = lrint(28672 * bits * yuv2rgb[n][m] / in_rng);
598		✗	for (o = 1; o < 8; o++)
599		✗	s->yuv2rgb_coeffs[n][m][o] = s->yuv2rgb_coeffs[n][m][0];
600			}
601			}
602			av_assert2(s->yuv2rgb_coeffs[0][1][0] == 0);
603			av_assert2(s->yuv2rgb_coeffs[2][2][0] == 0);
604			av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[1][0][0]);
605			av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[2][0][0]);
606		✗	s->yuv2rgb = s->dsp.yuv2rgb[(in_desc->comp[0].depth - 8) >> 1]
607		✗	[in_desc->log2_chroma_h + in_desc->log2_chroma_w];
608			}
609
610		✗	if (redo_rgb2yuv) {
611		✗	double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
612			int off, out_rng, bits;
613
614		✗	res = get_range_off(ctx, &off, &s->out_y_rng, &s->out_uv_rng,
615		✗	s->out_rng, out_desc->comp[0].depth);
616		✗	if (res < 0) {
617		✗	av_log(ctx, AV_LOG_ERROR,
618			"Unsupported output color range %d (%s)\n",
619		✗	s->out_rng, av_color_range_name(s->out_rng));
620		✗	return res;
621			}
622		✗	for (n = 0; n < 8; n++)
623		✗	s->yuv_offset[1][n] = off;
624		✗	ff_fill_rgb2yuv_table(s->out_lumacoef, rgb2yuv);
625		✗	bits = 1 << (29 - out_desc->comp[0].depth);
626		✗	for (out_rng = s->out_y_rng, n = 0; n < 3; n++, out_rng = s->out_uv_rng) {
627		✗	for (m = 0; m < 3; m++) {
628		✗	s->rgb2yuv_coeffs[n][m][0] = lrint(bits * out_rng * rgb2yuv[n][m] / 28672);
629		✗	for (o = 1; o < 8; o++)
630		✗	s->rgb2yuv_coeffs[n][m][o] = s->rgb2yuv_coeffs[n][m][0];
631			}
632			}
633			av_assert2(s->rgb2yuv_coeffs[1][2][0] == s->rgb2yuv_coeffs[2][0][0]);
634		✗	s->rgb2yuv = s->dsp.rgb2yuv[(out_desc->comp[0].depth - 8) >> 1]
635		✗	[out_desc->log2_chroma_h + out_desc->log2_chroma_w];
636		✗	s->rgb2yuv_fsb = s->dsp.rgb2yuv_fsb[(out_desc->comp[0].depth - 8) >> 1]
637		✗	[out_desc->log2_chroma_h + out_desc->log2_chroma_w];
638			}
639
640		✗	if (s->yuv2yuv_fastmode && (redo_yuv2rgb || redo_rgb2yuv)) {
641		✗	int idepth = in_desc->comp[0].depth, odepth = out_desc->comp[0].depth;
642		✗	double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
643		✗	double (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
644			double yuv2yuv[3][3];
645			int in_rng, out_rng;
646
647		✗	ff_matrix_mul_3x3(yuv2yuv, yuv2rgb, rgb2yuv);
648		✗	for (out_rng = s->out_y_rng, m = 0; m < 3; m++, out_rng = s->out_uv_rng) {
649		✗	for (in_rng = s->in_y_rng, n = 0; n < 3; n++, in_rng = s->in_uv_rng) {
650		✗	s->yuv2yuv_coeffs[m][n][0] =
651		✗	lrint(16384 * yuv2yuv[m][n] * out_rng * (1 << idepth) /
652		✗	(in_rng * (1 << odepth)));
653		✗	for (o = 1; o < 8; o++)
654		✗	s->yuv2yuv_coeffs[m][n][o] = s->yuv2yuv_coeffs[m][n][0];
655			}
656			}
657			av_assert2(s->yuv2yuv_coeffs[1][0][0] == 0);
658			av_assert2(s->yuv2yuv_coeffs[2][0][0] == 0);
659		✗	s->yuv2yuv = s->dsp.yuv2yuv[(idepth - 8) >> 1][(odepth - 8) >> 1]
660		✗	[in_desc->log2_chroma_h + in_desc->log2_chroma_w];
661			}
662			}
663
664		✗	return 0;
665			}
666
667		✗	static av_cold int init(AVFilterContext *ctx)
668			{
669		✗	ColorSpaceContext *s = ctx->priv;
670
671		✗	s->out_csp = s->user_csp == AVCOL_SPC_UNSPECIFIED ?
672		✗	default_csp[FFMIN(s->user_all, CS_NB)] : s->user_csp;
673		✗	s->out_lumacoef = av_csp_luma_coeffs_from_avcsp(s->out_csp);
674		✗	if (!s->out_lumacoef) {
675		✗	if (s->out_csp == AVCOL_SPC_UNSPECIFIED) {
676		✗	if (s->user_all == CS_UNSPECIFIED) {
677		✗	av_log(ctx, AV_LOG_ERROR,
678			"Please specify output colorspace\n");
679			} else {
680		✗	av_log(ctx, AV_LOG_ERROR,
681		✗	"Unsupported output color property %d\n", s->user_all);
682			}
683			} else {
684		✗	av_log(ctx, AV_LOG_ERROR,
685		✗	"Unsupported output colorspace %d (%s)\n", s->out_csp,
686			av_color_space_name(s->out_csp));
687			}
688		✗	return AVERROR(EINVAL);
689			}
690
691		✗	ff_colorspacedsp_init(&s->dsp);
692
693		✗	return 0;
694			}
695
696		✗	static void uninit(AVFilterContext *ctx)
697			{
698		✗	ColorSpaceContext *s = ctx->priv;
699
700		✗	av_freep(&s->rgb[0]);
701		✗	av_freep(&s->rgb[1]);
702		✗	av_freep(&s->rgb[2]);
703		✗	s->rgb_sz = 0;
704		✗	av_freep(&s->dither_scratch_base[0][0]);
705		✗	av_freep(&s->dither_scratch_base[0][1]);
706		✗	av_freep(&s->dither_scratch_base[1][0]);
707		✗	av_freep(&s->dither_scratch_base[1][1]);
708		✗	av_freep(&s->dither_scratch_base[2][0]);
709		✗	av_freep(&s->dither_scratch_base[2][1]);
710
711		✗	av_freep(&s->lin_lut);
712		✗	}
713
714		✗	static int filter_frame(AVFilterLink *link, AVFrame *in)
715			{
716		✗	AVFilterContext *ctx = link->dst;
717		✗	AVFilterLink *outlink = ctx->outputs[0];
718		✗	ColorSpaceContext *s = ctx->priv;
719			// FIXME if yuv2yuv_passthrough, don't get a new buffer but use the
720			// input one if it is writable *OR* the actual literal values of in_*
721			// and out_* are identical (not just their respective properties)
722		✗	AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
723			int res;
724		✗	ptrdiff_t rgb_stride = FFALIGN(in->width * sizeof(int16_t), 32);
725		✗	unsigned rgb_sz = rgb_stride * in->height;
726			ThreadData td;
727
728		✗	if (!out) {
729		✗	av_frame_free(&in);
730		✗	return AVERROR(ENOMEM);
731			}
732		✗	res = av_frame_copy_props(out, in);
733		✗	if (res < 0) {
734		✗	av_frame_free(&in);
735		✗	av_frame_free(&out);
736		✗	return res;
737			}
738
739		✗	out->colorspace = s->out_csp;
740		✗	out->color_range = s->user_rng == AVCOL_RANGE_UNSPECIFIED ?
741		✗	in->color_range : s->user_rng;
742		✗	out->color_primaries = s->user_prm == AVCOL_PRI_UNSPECIFIED ?
743		✗	default_prm[FFMIN(s->user_all, CS_NB)] : s->user_prm;
744		✗	if (s->user_trc == AVCOL_TRC_UNSPECIFIED) {
745		✗	const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(out->format);
746
747		✗	out->color_trc = default_trc[FFMIN(s->user_all, CS_NB)];
748		✗	if (out->color_trc == AVCOL_TRC_BT2020_10 && desc && desc->comp[0].depth >= 12)
749		✗	out->color_trc = AVCOL_TRC_BT2020_12;
750			} else {
751		✗	out->color_trc = s->user_trc;
752			}
753		✗	if (rgb_sz != s->rgb_sz) {
754		✗	const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(out->format);
755		✗	int uvw = in->width >> desc->log2_chroma_w;
756
757		✗	av_freep(&s->rgb[0]);
758		✗	av_freep(&s->rgb[1]);
759		✗	av_freep(&s->rgb[2]);
760		✗	s->rgb_sz = 0;
761		✗	av_freep(&s->dither_scratch_base[0][0]);
762		✗	av_freep(&s->dither_scratch_base[0][1]);
763		✗	av_freep(&s->dither_scratch_base[1][0]);
764		✗	av_freep(&s->dither_scratch_base[1][1]);
765		✗	av_freep(&s->dither_scratch_base[2][0]);
766		✗	av_freep(&s->dither_scratch_base[2][1]);
767
768		✗	s->rgb[0] = av_malloc(rgb_sz);
769		✗	s->rgb[1] = av_malloc(rgb_sz);
770		✗	s->rgb[2] = av_malloc(rgb_sz);
771		✗	s->dither_scratch_base[0][0] =
772		✗	av_malloc(sizeof(*s->dither_scratch_base[0][0]) * (in->width + 4));
773		✗	s->dither_scratch_base[0][1] =
774		✗	av_malloc(sizeof(*s->dither_scratch_base[0][1]) * (in->width + 4));
775		✗	s->dither_scratch_base[1][0] =
776		✗	av_malloc(sizeof(*s->dither_scratch_base[1][0]) * (uvw + 4));
777		✗	s->dither_scratch_base[1][1] =
778		✗	av_malloc(sizeof(*s->dither_scratch_base[1][1]) * (uvw + 4));
779		✗	s->dither_scratch_base[2][0] =
780		✗	av_malloc(sizeof(*s->dither_scratch_base[2][0]) * (uvw + 4));
781		✗	s->dither_scratch_base[2][1] =
782		✗	av_malloc(sizeof(*s->dither_scratch_base[2][1]) * (uvw + 4));
783		✗	s->dither_scratch[0][0] = &s->dither_scratch_base[0][0][1];
784		✗	s->dither_scratch[0][1] = &s->dither_scratch_base[0][1][1];
785		✗	s->dither_scratch[1][0] = &s->dither_scratch_base[1][0][1];
786		✗	s->dither_scratch[1][1] = &s->dither_scratch_base[1][1][1];
787		✗	s->dither_scratch[2][0] = &s->dither_scratch_base[2][0][1];
788		✗	s->dither_scratch[2][1] = &s->dither_scratch_base[2][1][1];
789		✗	if (!s->rgb[0] || !s->rgb[1] || !s->rgb[2] ||
790		✗	!s->dither_scratch_base[0][0] || !s->dither_scratch_base[0][1] ||
791		✗	!s->dither_scratch_base[1][0] || !s->dither_scratch_base[1][1] ||
792		✗	!s->dither_scratch_base[2][0] || !s->dither_scratch_base[2][1]) {
793		✗	uninit(ctx);
794		✗	av_frame_free(&in);
795		✗	av_frame_free(&out);
796		✗	return AVERROR(ENOMEM);
797			}
798		✗	s->rgb_sz = rgb_sz;
799			}
800		✗	res = create_filtergraph(ctx, in, out);
801		✗	if (res < 0) {
802		✗	av_frame_free(&in);
803		✗	av_frame_free(&out);
804		✗	return res;
805			}
806		✗	s->rgb_stride = rgb_stride / sizeof(int16_t);
807		✗	td.in = in;
808		✗	td.out = out;
809		✗	td.in_linesize[0] = in->linesize[0];
810		✗	td.in_linesize[1] = in->linesize[1];
811		✗	td.in_linesize[2] = in->linesize[2];
812		✗	td.out_linesize[0] = out->linesize[0];
813		✗	td.out_linesize[1] = out->linesize[1];
814		✗	td.out_linesize[2] = out->linesize[2];
815		✗	td.in_ss_h = av_pix_fmt_desc_get(in->format)->log2_chroma_h;
816		✗	td.out_ss_h = av_pix_fmt_desc_get(out->format)->log2_chroma_h;
817		✗	if (s->yuv2yuv_passthrough) {
818		✗	res = av_frame_copy(out, in);
819		✗	if (res < 0) {
820		✗	av_frame_free(&in);
821		✗	av_frame_free(&out);
822		✗	return res;
823			}
824			} else {
825		✗	ff_filter_execute(ctx, convert, &td, NULL,
826		✗	FFMIN((in->height + 1) >> 1, ff_filter_get_nb_threads(ctx)));
827			}
828		✗	av_frame_free(&in);
829
830		✗	return ff_filter_frame(outlink, out);
831			}
832
833		✗	static int query_formats(AVFilterContext *ctx)
834			{
835			static const enum AVPixelFormat pix_fmts[] = {
836			AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
837			AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
838			AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
839			AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
840			AV_PIX_FMT_NONE
841			};
842			int res;
843		✗	ColorSpaceContext *s = ctx->priv;
844		✗	AVFilterLink *outlink = ctx->outputs[0];
845		✗	AVFilterFormats *formats = ff_make_format_list(pix_fmts);
846
847		✗	res = ff_formats_ref(ff_make_formats_list_singleton(s->out_csp), &outlink->incfg.color_spaces);
848		✗	if (res < 0)
849		✗	return res;
850		✗	if (s->user_rng != AVCOL_RANGE_UNSPECIFIED) {
851		✗	res = ff_formats_ref(ff_make_formats_list_singleton(s->user_rng), &outlink->incfg.color_ranges);
852		✗	if (res < 0)
853		✗	return res;
854			}
855
856		✗	if (!formats)
857		✗	return AVERROR(ENOMEM);
858		✗	if (s->user_format == AV_PIX_FMT_NONE)
859		✗	return ff_set_common_formats(ctx, formats);
860		✗	res = ff_formats_ref(formats, &ctx->inputs[0]->outcfg.formats);
861		✗	if (res < 0)
862		✗	return res;
863		✗	formats = NULL;
864		✗	res = ff_add_format(&formats, s->user_format);
865		✗	if (res < 0)
866		✗	return res;
867
868		✗	return ff_formats_ref(formats, &outlink->incfg.formats);
869			}
870
871		✗	static int config_props(AVFilterLink *outlink)
872			{
873		✗	AVFilterContext *ctx = outlink->dst;
874		✗	AVFilterLink *inlink = outlink->src->inputs[0];
875
876		✗	if (inlink->w % 2 || inlink->h % 2) {
877		✗	av_log(ctx, AV_LOG_ERROR, "Invalid odd size (%dx%d)\n",
878			inlink->w, inlink->h);
879		✗	return AVERROR_PATCHWELCOME;
880			}
881
882		✗	outlink->w = inlink->w;
883		✗	outlink->h = inlink->h;
884		✗	outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
885		✗	outlink->time_base = inlink->time_base;
886
887		✗	return 0;
888			}
889
890			#define OFFSET(x) offsetof(ColorSpaceContext, x)
891			#define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
892			#define ENUM(x, y, z) { x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, .unit = z }
893
894			static const AVOption colorspace_options[] = {
895			{ "all", "Set all color properties together",
896			OFFSET(user_all), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
897			CS_UNSPECIFIED, CS_NB - 1, FLAGS, .unit = "all" },
898			ENUM("bt470m", CS_BT470M, "all"),
899			ENUM("bt470bg", CS_BT470BG, "all"),
900			ENUM("bt601-6-525", CS_BT601_6_525, "all"),
901			ENUM("bt601-6-625", CS_BT601_6_625, "all"),
902			ENUM("bt709", CS_BT709, "all"),
903			ENUM("smpte170m", CS_SMPTE170M, "all"),
904			ENUM("smpte240m", CS_SMPTE240M, "all"),
905			ENUM("bt2020", CS_BT2020, "all"),
906
907			{ "space", "Output colorspace",
908			OFFSET(user_csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
909			AVCOL_SPC_RGB, AVCOL_SPC_NB - 1, FLAGS, .unit = "csp"},
910			ENUM("bt709", AVCOL_SPC_BT709, "csp"),
911			ENUM("fcc", AVCOL_SPC_FCC, "csp"),
912			ENUM("bt470bg", AVCOL_SPC_BT470BG, "csp"),
913			ENUM("smpte170m", AVCOL_SPC_SMPTE170M, "csp"),
914			ENUM("smpte240m", AVCOL_SPC_SMPTE240M, "csp"),
915			ENUM("ycgco", AVCOL_SPC_YCGCO, "csp"),
916			ENUM("gbr", AVCOL_SPC_RGB, "csp"),
917			ENUM("bt2020nc", AVCOL_SPC_BT2020_NCL, "csp"),
918			ENUM("bt2020ncl", AVCOL_SPC_BT2020_NCL, "csp"),
919
920			{ "range", "Output color range",
921			OFFSET(user_rng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
922			AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_NB - 1, FLAGS, .unit = "rng" },
923			ENUM("tv", AVCOL_RANGE_MPEG, "rng"),
924			ENUM("mpeg", AVCOL_RANGE_MPEG, "rng"),
925			ENUM("pc", AVCOL_RANGE_JPEG, "rng"),
926			ENUM("jpeg", AVCOL_RANGE_JPEG, "rng"),
927
928			{ "primaries", "Output color primaries",
929			OFFSET(user_prm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
930			AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, .unit = "prm" },
931			ENUM("bt709", AVCOL_PRI_BT709, "prm"),
932			ENUM("bt470m", AVCOL_PRI_BT470M, "prm"),
933			ENUM("bt470bg", AVCOL_PRI_BT470BG, "prm"),
934			ENUM("smpte170m", AVCOL_PRI_SMPTE170M, "prm"),
935			ENUM("smpte240m", AVCOL_PRI_SMPTE240M, "prm"),
936			ENUM("smpte428", AVCOL_PRI_SMPTE428, "prm"),
937			ENUM("film", AVCOL_PRI_FILM, "prm"),
938			ENUM("smpte431", AVCOL_PRI_SMPTE431, "prm"),
939			ENUM("smpte432", AVCOL_PRI_SMPTE432, "prm"),
940			ENUM("bt2020", AVCOL_PRI_BT2020, "prm"),
941			ENUM("jedec-p22", AVCOL_PRI_JEDEC_P22, "prm"),
942			ENUM("ebu3213", AVCOL_PRI_EBU3213, "prm"),
943
944			{ "trc", "Output transfer characteristics",
945			OFFSET(user_trc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
946			AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, .unit = "trc" },
947			ENUM("bt709", AVCOL_TRC_BT709, "trc"),
948			ENUM("bt470m", AVCOL_TRC_GAMMA22, "trc"),
949			ENUM("gamma22", AVCOL_TRC_GAMMA22, "trc"),
950			ENUM("bt470bg", AVCOL_TRC_GAMMA28, "trc"),
951			ENUM("gamma28", AVCOL_TRC_GAMMA28, "trc"),
952			ENUM("smpte170m", AVCOL_TRC_SMPTE170M, "trc"),
953			ENUM("smpte240m", AVCOL_TRC_SMPTE240M, "trc"),
954			ENUM("linear", AVCOL_TRC_LINEAR, "trc"),
955			ENUM("srgb", AVCOL_TRC_IEC61966_2_1, "trc"),
956			ENUM("iec61966-2-1", AVCOL_TRC_IEC61966_2_1, "trc"),
957			ENUM("xvycc", AVCOL_TRC_IEC61966_2_4, "trc"),
958			ENUM("iec61966-2-4", AVCOL_TRC_IEC61966_2_4, "trc"),
959			ENUM("bt2020-10", AVCOL_TRC_BT2020_10, "trc"),
960			ENUM("bt2020-12", AVCOL_TRC_BT2020_12, "trc"),
961
962			{ "format", "Output pixel format",
963			OFFSET(user_format), AV_OPT_TYPE_INT, { .i64 = AV_PIX_FMT_NONE },
964			AV_PIX_FMT_NONE, AV_PIX_FMT_GBRAP12LE, FLAGS, .unit = "fmt" },
965			ENUM("yuv420p", AV_PIX_FMT_YUV420P, "fmt"),
966			ENUM("yuv420p10", AV_PIX_FMT_YUV420P10, "fmt"),
967			ENUM("yuv420p12", AV_PIX_FMT_YUV420P12, "fmt"),
968			ENUM("yuv422p", AV_PIX_FMT_YUV422P, "fmt"),
969			ENUM("yuv422p10", AV_PIX_FMT_YUV422P10, "fmt"),
970			ENUM("yuv422p12", AV_PIX_FMT_YUV422P12, "fmt"),
971			ENUM("yuv444p", AV_PIX_FMT_YUV444P, "fmt"),
972			ENUM("yuv444p10", AV_PIX_FMT_YUV444P10, "fmt"),
973			ENUM("yuv444p12", AV_PIX_FMT_YUV444P12, "fmt"),
974
975			{ "fast", "Ignore primary chromaticity and gamma correction",
976			OFFSET(fast_mode), AV_OPT_TYPE_BOOL, { .i64 = 0 },
977			0, 1, FLAGS },
978
979			{ "dither", "Dithering mode",
980			OFFSET(dither), AV_OPT_TYPE_INT, { .i64 = DITHER_NONE },
981			DITHER_NONE, DITHER_NB - 1, FLAGS, .unit = "dither" },
982			ENUM("none", DITHER_NONE, "dither"),
983			ENUM("fsb", DITHER_FSB, "dither"),
984
985			{ "wpadapt", "Whitepoint adaptation method",
986			OFFSET(wp_adapt), AV_OPT_TYPE_INT, { .i64 = WP_ADAPT_BRADFORD },
987			WP_ADAPT_BRADFORD, NB_WP_ADAPT - 1, FLAGS, .unit = "wpadapt" },
988			ENUM("bradford", WP_ADAPT_BRADFORD, "wpadapt"),
989			ENUM("vonkries", WP_ADAPT_VON_KRIES, "wpadapt"),
990			ENUM("identity", WP_ADAPT_IDENTITY, "wpadapt"),
991
992			{ "iall", "Set all input color properties together",
993			OFFSET(user_iall), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
994			CS_UNSPECIFIED, CS_NB - 1, FLAGS, .unit = "all" },
995			{ "ispace", "Input colorspace",
996			OFFSET(user_icsp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
997			AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, .unit = "csp" },
998			{ "irange", "Input color range",
999			OFFSET(user_irng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
1000			AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_NB - 1, FLAGS, .unit = "rng" },
1001			{ "iprimaries", "Input color primaries",
1002			OFFSET(user_iprm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
1003			AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, .unit = "prm" },
1004			{ "itrc", "Input transfer characteristics",
1005			OFFSET(user_itrc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
1006			AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, .unit = "trc" },
1007
1008			{ NULL }
1009			};
1010
1011			AVFILTER_DEFINE_CLASS(colorspace);
1012
1013			static const AVFilterPad inputs[] = {
1014			{
1015			.name = "default",
1016			.type = AVMEDIA_TYPE_VIDEO,
1017			.filter_frame = filter_frame,
1018			},
1019			};
1020
1021			static const AVFilterPad outputs[] = {
1022			{
1023			.name = "default",
1024			.type = AVMEDIA_TYPE_VIDEO,
1025			.config_props = config_props,
1026			},
1027			};
1028
1029			const AVFilter ff_vf_colorspace = {
1030			.name = "colorspace",
1031			.description = NULL_IF_CONFIG_SMALL("Convert between colorspaces."),
1032			.init = init,
1033			.uninit = uninit,
1034			.priv_size = sizeof(ColorSpaceContext),
1035			.priv_class = &colorspace_class,
1036			FILTER_INPUTS(inputs),
1037			FILTER_OUTPUTS(outputs),
1038			FILTER_QUERY_FUNC(query_formats),
1039			.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
1040			};
1041