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vf_lut3d.c
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1/*
2 * Copyright (c) 2013 Clément Bœsch
3 * Copyright (c) 2018 Paul B Mahol
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * 3D Lookup table filter
25 */
26
27#include <float.h>
28
29#include "config_components.h"
30
31#include "libavutil/mem.h"
32#include "libavutil/opt.h"
33#include "libavutil/file_open.h"
34#include "libavutil/intfloat.h"
35#include "libavutil/avassert.h"
36#include "libavutil/avstring.h"
37#include "drawutils.h"
38#include "filters.h"
39#include "video.h"
40#include "lut3d.h"
41
42#define R 0
43#define G 1
44#define B 2
45#define A 3
46
47#define OFFSET(x) offsetof(LUT3DContext, x)
48#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
49#define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
50#define COMMON_OPTIONS \
51 { "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_TETRAHEDRAL}, 0, NB_INTERP_MODE-1, TFLAGS, .unit = "interp_mode" }, \
52 { "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_NEAREST}, 0, 0, TFLAGS, .unit = "interp_mode" }, \
53 { "trilinear", "interpolate values using the 8 points defining a cube", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TRILINEAR}, 0, 0, TFLAGS, .unit = "interp_mode" }, \
54 { "tetrahedral", "interpolate values using a tetrahedron", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TETRAHEDRAL}, 0, 0, TFLAGS, .unit = "interp_mode" }, \
55 { "pyramid", "interpolate values using a pyramid", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_PYRAMID}, 0, 0, TFLAGS, .unit = "interp_mode" }, \
56 { "prism", "interpolate values using a prism", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_PRISM}, 0, 0, TFLAGS, .unit = "interp_mode" }, \
57 { NULL }
58
59#define EXPONENT_MASK 0x7F800000
60#define MANTISSA_MASK 0x007FFFFF
61#define SIGN_MASK 0x80000000
62
63static inline float sanitizef(float f)
64{
65 union av_intfloat32 t;
66 t.f = f;
67
68 if ((t.i & EXPONENT_MASK) == EXPONENT_MASK) {
69 if ((t.i & MANTISSA_MASK) != 0) {
70 // NAN
71 return 0.0f;
72 } else if (t.i & SIGN_MASK) {
73 // -INF
74 return -FLT_MAX;
75 } else {
76 // +INF
77 return FLT_MAX;
78 }
79 }
80 return f;
81}
82
83static inline float lerpf(float v0, float v1, float f)
84{
85 return v0 + (v1 - v0) * f;
86}
87
88static inline struct rgbvec lerp(const struct rgbvec *v0, const struct rgbvec *v1, float f)
89{
90 struct rgbvec v = {
91 lerpf(v0->r, v1->r, f), lerpf(v0->g, v1->g, f), lerpf(v0->b, v1->b, f)
92 };
93 return v;
94}
95
96#define NEAR(x) ((int)((x) + .5))
97#define PREV(x) ((int)(x))
98#define NEXT(x) (FFMIN((int)(x) + 1, lut3d->lutsize - 1))
99
100/**
101 * Get the nearest defined point
102 */
103static inline struct rgbvec interp_nearest(const LUT3DContext *lut3d,
104 const struct rgbvec *s)
105{
106 return lut3d->lut[NEAR(s->r) * lut3d->lutsize2 + NEAR(s->g) * lut3d->lutsize + NEAR(s->b)];
107}
108
109/**
110 * Interpolate using the 8 vertices of a cube
111 * @see https://en.wikipedia.org/wiki/Trilinear_interpolation
112 */
113static inline struct rgbvec interp_trilinear(const LUT3DContext *lut3d,
114 const struct rgbvec *s)
115{
116 const int lutsize2 = lut3d->lutsize2;
117 const int lutsize = lut3d->lutsize;
118 const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};
119 const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};
120 const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};
121 const struct rgbvec c000 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + prev[2]];
122 const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
123 const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
124 const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
125 const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
126 const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
127 const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
128 const struct rgbvec c111 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + next[2]];
129 const struct rgbvec c00 = lerp(&c000, &c100, d.r);
130 const struct rgbvec c10 = lerp(&c010, &c110, d.r);
131 const struct rgbvec c01 = lerp(&c001, &c101, d.r);
132 const struct rgbvec c11 = lerp(&c011, &c111, d.r);
133 const struct rgbvec c0 = lerp(&c00, &c10, d.g);
134 const struct rgbvec c1 = lerp(&c01, &c11, d.g);
135 const struct rgbvec c = lerp(&c0, &c1, d.b);
136 return c;
137}
138
139static inline struct rgbvec interp_pyramid(const LUT3DContext *lut3d,
140 const struct rgbvec *s)
141{
142 const int lutsize2 = lut3d->lutsize2;
143 const int lutsize = lut3d->lutsize;
144 const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};
145 const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};
146 const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};
147 const struct rgbvec c000 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + prev[2]];
148 const struct rgbvec c111 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + next[2]];
149 struct rgbvec c;
150
151 if (d.g > d.r && d.b > d.r) {
152 const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
153 const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
154 const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
155
156 c.r = c000.r + (c111.r - c011.r) * d.r + (c010.r - c000.r) * d.g + (c001.r - c000.r) * d.b +
157 (c011.r - c001.r - c010.r + c000.r) * d.g * d.b;
158 c.g = c000.g + (c111.g - c011.g) * d.r + (c010.g - c000.g) * d.g + (c001.g - c000.g) * d.b +
159 (c011.g - c001.g - c010.g + c000.g) * d.g * d.b;
160 c.b = c000.b + (c111.b - c011.b) * d.r + (c010.b - c000.b) * d.g + (c001.b - c000.b) * d.b +
161 (c011.b - c001.b - c010.b + c000.b) * d.g * d.b;
162 } else if (d.r > d.g && d.b > d.g) {
163 const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
164 const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
165 const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
166
167 c.r = c000.r + (c100.r - c000.r) * d.r + (c111.r - c101.r) * d.g + (c001.r - c000.r) * d.b +
168 (c101.r - c001.r - c100.r + c000.r) * d.r * d.b;
169 c.g = c000.g + (c100.g - c000.g) * d.r + (c111.g - c101.g) * d.g + (c001.g - c000.g) * d.b +
170 (c101.g - c001.g - c100.g + c000.g) * d.r * d.b;
171 c.b = c000.b + (c100.b - c000.b) * d.r + (c111.b - c101.b) * d.g + (c001.b - c000.b) * d.b +
172 (c101.b - c001.b - c100.b + c000.b) * d.r * d.b;
173 } else {
174 const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
175 const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
176 const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
177
178 c.r = c000.r + (c100.r - c000.r) * d.r + (c010.r - c000.r) * d.g + (c111.r - c110.r) * d.b +
179 (c110.r - c100.r - c010.r + c000.r) * d.r * d.g;
180 c.g = c000.g + (c100.g - c000.g) * d.r + (c010.g - c000.g) * d.g + (c111.g - c110.g) * d.b +
181 (c110.g - c100.g - c010.g + c000.g) * d.r * d.g;
182 c.b = c000.b + (c100.b - c000.b) * d.r + (c010.b - c000.b) * d.g + (c111.b - c110.b) * d.b +
183 (c110.b - c100.b - c010.b + c000.b) * d.r * d.g;
184 }
185
186 return c;
187}
188
189static inline struct rgbvec interp_prism(const LUT3DContext *lut3d,
190 const struct rgbvec *s)
191{
192 const int lutsize2 = lut3d->lutsize2;
193 const int lutsize = lut3d->lutsize;
194 const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};
195 const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};
196 const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};
197 const struct rgbvec c000 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + prev[2]];
198 const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
199 const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
200 const struct rgbvec c111 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + next[2]];
201 struct rgbvec c;
202
203 if (d.b > d.r) {
204 const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
205 const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
206
207 c.r = c000.r + (c001.r - c000.r) * d.b + (c101.r - c001.r) * d.r + (c010.r - c000.r) * d.g +
208 (c000.r - c010.r - c001.r + c011.r) * d.b * d.g +
209 (c001.r - c011.r - c101.r + c111.r) * d.r * d.g;
210 c.g = c000.g + (c001.g - c000.g) * d.b + (c101.g - c001.g) * d.r + (c010.g - c000.g) * d.g +
211 (c000.g - c010.g - c001.g + c011.g) * d.b * d.g +
212 (c001.g - c011.g - c101.g + c111.g) * d.r * d.g;
213 c.b = c000.b + (c001.b - c000.b) * d.b + (c101.b - c001.b) * d.r + (c010.b - c000.b) * d.g +
214 (c000.b - c010.b - c001.b + c011.b) * d.b * d.g +
215 (c001.b - c011.b - c101.b + c111.b) * d.r * d.g;
216 } else {
217 const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
218 const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
219
220 c.r = c000.r + (c101.r - c100.r) * d.b + (c100.r - c000.r) * d.r + (c010.r - c000.r) * d.g +
221 (c100.r - c110.r - c101.r + c111.r) * d.b * d.g +
222 (c000.r - c010.r - c100.r + c110.r) * d.r * d.g;
223 c.g = c000.g + (c101.g - c100.g) * d.b + (c100.g - c000.g) * d.r + (c010.g - c000.g) * d.g +
224 (c100.g - c110.g - c101.g + c111.g) * d.b * d.g +
225 (c000.g - c010.g - c100.g + c110.g) * d.r * d.g;
226 c.b = c000.b + (c101.b - c100.b) * d.b + (c100.b - c000.b) * d.r + (c010.b - c000.b) * d.g +
227 (c100.b - c110.b - c101.b + c111.b) * d.b * d.g +
228 (c000.b - c010.b - c100.b + c110.b) * d.r * d.g;
229 }
230
231 return c;
232}
233
234/**
235 * Tetrahedral interpolation. Based on code found in Truelight Software Library paper.
236 * @see http://www.filmlight.ltd.uk/pdf/whitepapers/FL-TL-TN-0057-SoftwareLib.pdf
237 */
238static inline struct rgbvec interp_tetrahedral(const LUT3DContext *lut3d,
239 const struct rgbvec *s)
240{
241 const int lutsize2 = lut3d->lutsize2;
242 const int lutsize = lut3d->lutsize;
243 const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};
244 const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};
245 const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};
246 const struct rgbvec c000 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + prev[2]];
247 const struct rgbvec c111 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + next[2]];
248 struct rgbvec c;
249 if (d.r > d.g) {
250 if (d.g > d.b) {
251 const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
252 const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
253 c.r = (1-d.r) * c000.r + (d.r-d.g) * c100.r + (d.g-d.b) * c110.r + (d.b) * c111.r;
254 c.g = (1-d.r) * c000.g + (d.r-d.g) * c100.g + (d.g-d.b) * c110.g + (d.b) * c111.g;
255 c.b = (1-d.r) * c000.b + (d.r-d.g) * c100.b + (d.g-d.b) * c110.b + (d.b) * c111.b;
256 } else if (d.r > d.b) {
257 const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
258 const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
259 c.r = (1-d.r) * c000.r + (d.r-d.b) * c100.r + (d.b-d.g) * c101.r + (d.g) * c111.r;
260 c.g = (1-d.r) * c000.g + (d.r-d.b) * c100.g + (d.b-d.g) * c101.g + (d.g) * c111.g;
261 c.b = (1-d.r) * c000.b + (d.r-d.b) * c100.b + (d.b-d.g) * c101.b + (d.g) * c111.b;
262 } else {
263 const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
264 const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
265 c.r = (1-d.b) * c000.r + (d.b-d.r) * c001.r + (d.r-d.g) * c101.r + (d.g) * c111.r;
266 c.g = (1-d.b) * c000.g + (d.b-d.r) * c001.g + (d.r-d.g) * c101.g + (d.g) * c111.g;
267 c.b = (1-d.b) * c000.b + (d.b-d.r) * c001.b + (d.r-d.g) * c101.b + (d.g) * c111.b;
268 }
269 } else {
270 if (d.b > d.g) {
271 const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
272 const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
273 c.r = (1-d.b) * c000.r + (d.b-d.g) * c001.r + (d.g-d.r) * c011.r + (d.r) * c111.r;
274 c.g = (1-d.b) * c000.g + (d.b-d.g) * c001.g + (d.g-d.r) * c011.g + (d.r) * c111.g;
275 c.b = (1-d.b) * c000.b + (d.b-d.g) * c001.b + (d.g-d.r) * c011.b + (d.r) * c111.b;
276 } else if (d.b > d.r) {
277 const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
278 const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
279 c.r = (1-d.g) * c000.r + (d.g-d.b) * c010.r + (d.b-d.r) * c011.r + (d.r) * c111.r;
280 c.g = (1-d.g) * c000.g + (d.g-d.b) * c010.g + (d.b-d.r) * c011.g + (d.r) * c111.g;
281 c.b = (1-d.g) * c000.b + (d.g-d.b) * c010.b + (d.b-d.r) * c011.b + (d.r) * c111.b;
282 } else {
283 const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
284 const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
285 c.r = (1-d.g) * c000.r + (d.g-d.r) * c010.r + (d.r-d.b) * c110.r + (d.b) * c111.r;
286 c.g = (1-d.g) * c000.g + (d.g-d.r) * c010.g + (d.r-d.b) * c110.g + (d.b) * c111.g;
287 c.b = (1-d.g) * c000.b + (d.g-d.r) * c010.b + (d.r-d.b) * c110.b + (d.b) * c111.b;
288 }
289 }
290 return c;
291}
292
293static inline float prelut_interp_1d_linear(const Lut3DPreLut *prelut,
294 int idx, const float s)
295{
296 const int lut_max = prelut->size - 1;
297 const float scaled = (s - prelut->min[idx]) * prelut->scale[idx];
298 const float x = av_clipf(scaled, 0.0f, lut_max);
299 const int prev = PREV(x);
300 const int next = FFMIN((int)(x) + 1, lut_max);
301 const float p = prelut->lut[idx][prev];
302 const float n = prelut->lut[idx][next];
303 const float d = x - (float)prev;
304 return lerpf(p, n, d);
305}
306
307static inline struct rgbvec apply_prelut(const Lut3DPreLut *prelut,
308 const struct rgbvec *s)
309{
310 struct rgbvec c;
311
312 if (prelut->size <= 0)
313 return *s;
314
315 c.r = prelut_interp_1d_linear(prelut, 0, s->r);
316 c.g = prelut_interp_1d_linear(prelut, 1, s->g);
317 c.b = prelut_interp_1d_linear(prelut, 2, s->b);
318 return c;
319}
320
321#define DEFINE_INTERP_FUNC_PLANAR(name, nbits, depth) \
322static int interp_##nbits##_##name##_p##depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
323{ \
324 int x, y; \
325 const LUT3DContext *lut3d = ctx->priv; \
326 const Lut3DPreLut *prelut = &lut3d->prelut; \
327 const ThreadData *td = arg; \
328 const AVFrame *in = td->in; \
329 const AVFrame *out = td->out; \
330 const int direct = out == in; \
331 const int slice_start = ff_slice_pos(in->height, jobnr, nb_jobs); \
332 const int slice_end = ff_slice_pos(in->height, jobnr + 1, nb_jobs); \
333 uint8_t *grow = out->data[0] + slice_start * out->linesize[0]; \
334 uint8_t *brow = out->data[1] + slice_start * out->linesize[1]; \
335 uint8_t *rrow = out->data[2] + slice_start * out->linesize[2]; \
336 uint8_t *arow = out->data[3] + slice_start * out->linesize[3]; \
337 const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0]; \
338 const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1]; \
339 const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2]; \
340 const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3]; \
341 const float lut_max = lut3d->lutsize - 1; \
342 const float scale_f = 1.0f / ((1<<depth) - 1); \
343 const float scale_r = lut3d->scale.r * lut_max; \
344 const float scale_g = lut3d->scale.g * lut_max; \
345 const float scale_b = lut3d->scale.b * lut_max; \
346 \
347 for (y = slice_start; y < slice_end; y++) { \
348 uint##nbits##_t *dstg = (uint##nbits##_t *)grow; \
349 uint##nbits##_t *dstb = (uint##nbits##_t *)brow; \
350 uint##nbits##_t *dstr = (uint##nbits##_t *)rrow; \
351 uint##nbits##_t *dsta = (uint##nbits##_t *)arow; \
352 const uint##nbits##_t *srcg = (const uint##nbits##_t *)srcgrow; \
353 const uint##nbits##_t *srcb = (const uint##nbits##_t *)srcbrow; \
354 const uint##nbits##_t *srcr = (const uint##nbits##_t *)srcrrow; \
355 const uint##nbits##_t *srca = (const uint##nbits##_t *)srcarow; \
356 for (x = 0; x < in->width; x++) { \
357 const struct rgbvec rgb = {srcr[x] * scale_f, \
358 srcg[x] * scale_f, \
359 srcb[x] * scale_f}; \
360 const struct rgbvec prelut_rgb = apply_prelut(prelut, &rgb); \
361 const struct rgbvec scaled_rgb = {av_clipf(prelut_rgb.r * scale_r, 0, lut_max), \
362 av_clipf(prelut_rgb.g * scale_g, 0, lut_max), \
363 av_clipf(prelut_rgb.b * scale_b, 0, lut_max)}; \
364 struct rgbvec vec = interp_##name(lut3d, &scaled_rgb); \
365 dstr[x] = av_clip_uintp2(vec.r * (float)((1<<depth) - 1), depth); \
366 dstg[x] = av_clip_uintp2(vec.g * (float)((1<<depth) - 1), depth); \
367 dstb[x] = av_clip_uintp2(vec.b * (float)((1<<depth) - 1), depth); \
368 if (!direct && in->linesize[3]) \
369 dsta[x] = srca[x]; \
370 } \
371 grow += out->linesize[0]; \
372 brow += out->linesize[1]; \
373 rrow += out->linesize[2]; \
374 arow += out->linesize[3]; \
375 srcgrow += in->linesize[0]; \
376 srcbrow += in->linesize[1]; \
377 srcrrow += in->linesize[2]; \
378 srcarow += in->linesize[3]; \
379 } \
380 return 0; \
381}
382
383DEFINE_INTERP_FUNC_PLANAR(nearest, 8, 8)
384DEFINE_INTERP_FUNC_PLANAR(trilinear, 8, 8)
385DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 8, 8)
386DEFINE_INTERP_FUNC_PLANAR(pyramid, 8, 8)
387DEFINE_INTERP_FUNC_PLANAR(prism, 8, 8)
388
389DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 9)
390DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 9)
391DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 9)
392DEFINE_INTERP_FUNC_PLANAR(pyramid, 16, 9)
393DEFINE_INTERP_FUNC_PLANAR(prism, 16, 9)
394
395DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 10)
396DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 10)
397DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 10)
398DEFINE_INTERP_FUNC_PLANAR(pyramid, 16, 10)
399DEFINE_INTERP_FUNC_PLANAR(prism, 16, 10)
400
401DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 12)
402DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 12)
403DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 12)
404DEFINE_INTERP_FUNC_PLANAR(pyramid, 16, 12)
405DEFINE_INTERP_FUNC_PLANAR(prism, 16, 12)
406
407DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 14)
408DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 14)
409DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 14)
410DEFINE_INTERP_FUNC_PLANAR(pyramid, 16, 14)
411DEFINE_INTERP_FUNC_PLANAR(prism, 16, 14)
412
413DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 16)
414DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 16)
415DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 16)
416DEFINE_INTERP_FUNC_PLANAR(pyramid, 16, 16)
417DEFINE_INTERP_FUNC_PLANAR(prism, 16, 16)
418
419#define DEFINE_INTERP_FUNC_PLANAR_FLOAT(name, depth) \
420static int interp_##name##_pf##depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
421{ \
422 int x, y; \
423 const LUT3DContext *lut3d = ctx->priv; \
424 const Lut3DPreLut *prelut = &lut3d->prelut; \
425 const ThreadData *td = arg; \
426 const AVFrame *in = td->in; \
427 const AVFrame *out = td->out; \
428 const int direct = out == in; \
429 const int slice_start = ff_slice_pos(in->height, jobnr, nb_jobs); \
430 const int slice_end = ff_slice_pos(in->height, jobnr + 1, nb_jobs); \
431 uint8_t *grow = out->data[0] + slice_start * out->linesize[0]; \
432 uint8_t *brow = out->data[1] + slice_start * out->linesize[1]; \
433 uint8_t *rrow = out->data[2] + slice_start * out->linesize[2]; \
434 uint8_t *arow = out->data[3] + slice_start * out->linesize[3]; \
435 const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0]; \
436 const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1]; \
437 const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2]; \
438 const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3]; \
439 const float lut_max = lut3d->lutsize - 1; \
440 const float scale_r = lut3d->scale.r * lut_max; \
441 const float scale_g = lut3d->scale.g * lut_max; \
442 const float scale_b = lut3d->scale.b * lut_max; \
443 \
444 for (y = slice_start; y < slice_end; y++) { \
445 float *dstg = (float *)grow; \
446 float *dstb = (float *)brow; \
447 float *dstr = (float *)rrow; \
448 float *dsta = (float *)arow; \
449 const float *srcg = (const float *)srcgrow; \
450 const float *srcb = (const float *)srcbrow; \
451 const float *srcr = (const float *)srcrrow; \
452 const float *srca = (const float *)srcarow; \
453 for (x = 0; x < in->width; x++) { \
454 const struct rgbvec rgb = {sanitizef(srcr[x]), \
455 sanitizef(srcg[x]), \
456 sanitizef(srcb[x])}; \
457 const struct rgbvec prelut_rgb = apply_prelut(prelut, &rgb); \
458 const struct rgbvec scaled_rgb = {av_clipf(prelut_rgb.r * scale_r, 0, lut_max), \
459 av_clipf(prelut_rgb.g * scale_g, 0, lut_max), \
460 av_clipf(prelut_rgb.b * scale_b, 0, lut_max)}; \
461 struct rgbvec vec = interp_##name(lut3d, &scaled_rgb); \
462 dstr[x] = vec.r; \
463 dstg[x] = vec.g; \
464 dstb[x] = vec.b; \
465 if (!direct && in->linesize[3]) \
466 dsta[x] = srca[x]; \
467 } \
468 grow += out->linesize[0]; \
469 brow += out->linesize[1]; \
470 rrow += out->linesize[2]; \
471 arow += out->linesize[3]; \
472 srcgrow += in->linesize[0]; \
473 srcbrow += in->linesize[1]; \
474 srcrrow += in->linesize[2]; \
475 srcarow += in->linesize[3]; \
476 } \
477 return 0; \
478}
479
480DEFINE_INTERP_FUNC_PLANAR_FLOAT(nearest, 32)
481DEFINE_INTERP_FUNC_PLANAR_FLOAT(trilinear, 32)
482DEFINE_INTERP_FUNC_PLANAR_FLOAT(tetrahedral, 32)
483DEFINE_INTERP_FUNC_PLANAR_FLOAT(pyramid, 32)
484DEFINE_INTERP_FUNC_PLANAR_FLOAT(prism, 32)
485
486#define DEFINE_INTERP_FUNC(name, nbits) \
487static int interp_##nbits##_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
488{ \
489 int x, y; \
490 const LUT3DContext *lut3d = ctx->priv; \
491 const Lut3DPreLut *prelut = &lut3d->prelut; \
492 const ThreadData *td = arg; \
493 const AVFrame *in = td->in; \
494 const AVFrame *out = td->out; \
495 const int direct = out == in; \
496 const int step = lut3d->step; \
497 const uint8_t r = lut3d->rgba_map[R]; \
498 const uint8_t g = lut3d->rgba_map[G]; \
499 const uint8_t b = lut3d->rgba_map[B]; \
500 const uint8_t a = lut3d->rgba_map[A]; \
501 const int slice_start = ff_slice_pos(in->height, jobnr, nb_jobs); \
502 const int slice_end = ff_slice_pos(in->height, jobnr + 1, nb_jobs); \
503 uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0]; \
504 const uint8_t *srcrow = in ->data[0] + slice_start * in ->linesize[0]; \
505 const float lut_max = lut3d->lutsize - 1; \
506 const float scale_f = 1.0f / ((1<<nbits) - 1); \
507 const float scale_r = lut3d->scale.r * lut_max; \
508 const float scale_g = lut3d->scale.g * lut_max; \
509 const float scale_b = lut3d->scale.b * lut_max; \
510 \
511 for (y = slice_start; y < slice_end; y++) { \
512 uint##nbits##_t *dst = (uint##nbits##_t *)dstrow; \
513 const uint##nbits##_t *src = (const uint##nbits##_t *)srcrow; \
514 for (x = 0; x < in->width * step; x += step) { \
515 const struct rgbvec rgb = {src[x + r] * scale_f, \
516 src[x + g] * scale_f, \
517 src[x + b] * scale_f}; \
518 const struct rgbvec prelut_rgb = apply_prelut(prelut, &rgb); \
519 const struct rgbvec scaled_rgb = {av_clipf(prelut_rgb.r * scale_r, 0, lut_max), \
520 av_clipf(prelut_rgb.g * scale_g, 0, lut_max), \
521 av_clipf(prelut_rgb.b * scale_b, 0, lut_max)}; \
522 struct rgbvec vec = interp_##name(lut3d, &scaled_rgb); \
523 dst[x + r] = av_clip_uint##nbits(vec.r * (float)((1<<nbits) - 1)); \
524 dst[x + g] = av_clip_uint##nbits(vec.g * (float)((1<<nbits) - 1)); \
525 dst[x + b] = av_clip_uint##nbits(vec.b * (float)((1<<nbits) - 1)); \
526 if (!direct && step == 4) \
527 dst[x + a] = src[x + a]; \
528 } \
529 dstrow += out->linesize[0]; \
530 srcrow += in ->linesize[0]; \
531 } \
532 return 0; \
533}
534
535DEFINE_INTERP_FUNC(nearest, 8)
536DEFINE_INTERP_FUNC(trilinear, 8)
537DEFINE_INTERP_FUNC(tetrahedral, 8)
538DEFINE_INTERP_FUNC(pyramid, 8)
539DEFINE_INTERP_FUNC(prism, 8)
540
541DEFINE_INTERP_FUNC(nearest, 16)
542DEFINE_INTERP_FUNC(trilinear, 16)
543DEFINE_INTERP_FUNC(tetrahedral, 16)
544DEFINE_INTERP_FUNC(pyramid, 16)
545DEFINE_INTERP_FUNC(prism, 16)
546
547#define MAX_LINE_SIZE 512
548
549static int skip_line(const char *p)
550{
551 while (*p && av_isspace(*p))
552 p++;
553 return !*p || *p == '#';
554}
555
556static char* fget_next_word(char* dst, int max, FILE* f)
557{
558 int c;
559 char *p = dst;
560
561 /* for null */
562 max--;
563 /* skip until next non whitespace char */
564 while ((c = fgetc(f)) != EOF) {
565 if (av_isspace(c))
566 continue;
567
568 *p++ = c;
569 max--;
570 break;
571 }
572
573 /* get max bytes or up until next whitespace char */
574 for (; max > 0; max--) {
575 if ((c = fgetc(f)) == EOF)
576 break;
577
578 if (av_isspace(c))
579 break;
580
581 *p++ = c;
582 }
583
584 *p = 0;
585 if (p == dst)
586 return NULL;
587 return p;
588}
589
590#define NEXT_LINE(loop_cond) do { \
591 if (!fgets(line, sizeof(line), f)) { \
592 av_log(ctx, AV_LOG_ERROR, "Unexpected EOF\n"); \
593 return AVERROR_INVALIDDATA; \
594 } \
595} while (loop_cond)
596
597#define NEXT_LINE_OR_GOTO(loop_cond, label) do { \
598 if (!fgets(line, sizeof(line), f)) { \
599 av_log(ctx, AV_LOG_ERROR, "Unexpected EOF\n"); \
600 ret = AVERROR_INVALIDDATA; \
601 goto label; \
602 } \
603} while (loop_cond)
604
605static int allocate_3dlut(AVFilterContext *ctx, int lutsize, int prelut)
606{
607 LUT3DContext *lut3d = ctx->priv;
608 int i;
609 if (lutsize < 2 || lutsize > MAX_LEVEL) {
610 av_log(ctx, AV_LOG_ERROR, "Too large or invalid 3D LUT size\n");
611 return AVERROR(EINVAL);
612 }
613
614 av_freep(&lut3d->lut);
615 lut3d->lut = av_malloc_array(lutsize * lutsize * lutsize, sizeof(*lut3d->lut));
616 if (!lut3d->lut)
617 return AVERROR(ENOMEM);
618
619 if (prelut) {
620 lut3d->prelut.size = PRELUT_SIZE;
621 for (i = 0; i < 3; i++) {
622 av_freep(&lut3d->prelut.lut[i]);
623 lut3d->prelut.lut[i] = av_malloc_array(PRELUT_SIZE, sizeof(*lut3d->prelut.lut[0]));
624 if (!lut3d->prelut.lut[i])
625 return AVERROR(ENOMEM);
626 }
627 } else {
628 lut3d->prelut.size = 0;
629 for (i = 0; i < 3; i++) {
630 av_freep(&lut3d->prelut.lut[i]);
631 }
632 }
633 lut3d->lutsize = lutsize;
634 lut3d->lutsize2 = lutsize * lutsize;
635 return 0;
636}
637
638/* Basically r g and b float values on each line, with a facultative 3DLUTSIZE
639 * directive; seems to be generated by Davinci */
640static int parse_dat(AVFilterContext *ctx, FILE *f)
641{
642 LUT3DContext *lut3d = ctx->priv;
643 char line[MAX_LINE_SIZE];
644 int ret, i, j, k, size, size2;
645
646 lut3d->lutsize = size = 33;
647
648 NEXT_LINE(skip_line(line));
649 if (!strncmp(line, "3DLUTSIZE ", 10)) {
650 size = strtol(line + 10, NULL, 0);
651
652 NEXT_LINE(skip_line(line));
653 }
654
655 ret = allocate_3dlut(ctx, size, 0);
656 if (ret < 0)
657 return ret;
658 size2 = lut3d->lutsize2;
659
660 for (k = 0; k < size; k++) {
661 for (j = 0; j < size; j++) {
662 for (i = 0; i < size; i++) {
663 struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
664 if (k != 0 || j != 0 || i != 0)
665 NEXT_LINE(skip_line(line));
666 if (av_sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3)
667 return AVERROR_INVALIDDATA;
668 }
669 }
670 }
671 return 0;
672}
673
674/* Iridas format */
675static int parse_cube(AVFilterContext *ctx, FILE *f)
676{
677 LUT3DContext *lut3d = ctx->priv;
678 char line[MAX_LINE_SIZE];
679 float min[3] = {0.0, 0.0, 0.0};
680 float max[3] = {1.0, 1.0, 1.0};
681
682 while (fgets(line, sizeof(line), f)) {
683 if (!strncmp(line, "LUT_3D_SIZE", 11)) {
684 int ret, i, j, k, size2;
685 const int size = strtol(line + 12, NULL, 0);
686
687 ret = allocate_3dlut(ctx, size, 0);
688 if (ret < 0)
689 return ret;
690 size2 = lut3d->lutsize2;
691
692 for (k = 0; k < size; k++) {
693 for (j = 0; j < size; j++) {
694 for (i = 0; i < size; i++) {
695 struct rgbvec *vec = &lut3d->lut[i * size2 + j * size + k];
696
697 do {
698try_again:
699 NEXT_LINE(0);
700 if (!strncmp(line, "DOMAIN_", 7)) {
701 float *vals = NULL;
702 if (!strncmp(line + 7, "MIN ", 4)) vals = min;
703 else if (!strncmp(line + 7, "MAX ", 4)) vals = max;
704 if (!vals)
705 return AVERROR_INVALIDDATA;
706 if (av_sscanf(line + 11, "%f %f %f", vals, vals + 1, vals + 2) != 3)
707 return AVERROR_INVALIDDATA;
708 av_log(ctx, AV_LOG_DEBUG, "min: %f %f %f | max: %f %f %f\n",
709 min[0], min[1], min[2], max[0], max[1], max[2]);
710 goto try_again;
711 } else if (!strncmp(line, "TITLE", 5)) {
712 goto try_again;
713 }
714 } while (skip_line(line));
715 if (av_sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3)
716 return AVERROR_INVALIDDATA;
717 }
718 }
719 }
720 break;
721 }
722 }
723
724 lut3d->scale.r = av_clipf(1. / (max[0] - min[0]), 0.f, 1.f);
725 lut3d->scale.g = av_clipf(1. / (max[1] - min[1]), 0.f, 1.f);
726 lut3d->scale.b = av_clipf(1. / (max[2] - min[2]), 0.f, 1.f);
727
728 return 0;
729}
730
731/* Assume 17x17x17 LUT with a 16-bit depth
732 * FIXME: it seems there are various 3dl formats */
733static int parse_3dl(AVFilterContext *ctx, FILE *f)
734{
735 char line[MAX_LINE_SIZE];
736 LUT3DContext *lut3d = ctx->priv;
737 int ret, i, j, k;
738 const int size = 17;
739 const int size2 = 17 * 17;
740 const float scale = 16*16*16;
741
742 lut3d->lutsize = size;
743
744 ret = allocate_3dlut(ctx, size, 0);
745 if (ret < 0)
746 return ret;
747
748 NEXT_LINE(skip_line(line));
749 for (k = 0; k < size; k++) {
750 for (j = 0; j < size; j++) {
751 for (i = 0; i < size; i++) {
752 int r, g, b;
753 struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
754
755 NEXT_LINE(skip_line(line));
756 if (av_sscanf(line, "%d %d %d", &r, &g, &b) != 3)
757 return AVERROR_INVALIDDATA;
758 vec->r = r / scale;
759 vec->g = g / scale;
760 vec->b = b / scale;
761 }
762 }
763 }
764 return 0;
765}
766
767/* Pandora format */
768static int parse_m3d(AVFilterContext *ctx, FILE *f)
769{
770 LUT3DContext *lut3d = ctx->priv;
771 float scale;
772 int ret, i, j, k, size, size2, in = -1, out = -1;
773 char line[MAX_LINE_SIZE];
774 uint8_t rgb_map[3] = {0, 1, 2};
775
776 while (fgets(line, sizeof(line), f)) {
777 if (!strncmp(line, "in", 2)) in = strtol(line + 2, NULL, 0);
778 else if (!strncmp(line, "out", 3)) out = strtol(line + 3, NULL, 0);
779 else if (!strncmp(line, "values", 6)) {
780 const char *p = line + 6;
781#define SET_COLOR(id) do { \
782 while (av_isspace(*p)) \
783 p++; \
784 switch (*p) { \
785 case 'r': rgb_map[id] = 0; break; \
786 case 'g': rgb_map[id] = 1; break; \
787 case 'b': rgb_map[id] = 2; break; \
788 } \
789 while (*p && !av_isspace(*p)) \
790 p++; \
791} while (0)
792 SET_COLOR(0);
793 SET_COLOR(1);
794 SET_COLOR(2);
795 break;
796 }
797 }
798
799 if (in == -1 || out == -1) {
800 av_log(ctx, AV_LOG_ERROR, "in and out must be defined\n");
801 return AVERROR_INVALIDDATA;
802 }
803 if (in < 2 || out < 2 ||
804 in > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL ||
805 out > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL) {
806 av_log(ctx, AV_LOG_ERROR, "invalid in (%d) or out (%d)\n", in, out);
807 return AVERROR_INVALIDDATA;
808 }
809 for (size = 1; size*size*size < in; size++);
810 lut3d->lutsize = size;
811 size2 = size * size;
812
813 ret = allocate_3dlut(ctx, size, 0);
814 if (ret < 0)
815 return ret;
816
817 scale = 1. / (out - 1);
818
819 for (k = 0; k < size; k++) {
820 for (j = 0; j < size; j++) {
821 for (i = 0; i < size; i++) {
822 struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
823 float val[3];
824
825 NEXT_LINE(0);
826 if (av_sscanf(line, "%f %f %f", val, val + 1, val + 2) != 3)
827 return AVERROR_INVALIDDATA;
828 vec->r = val[rgb_map[0]] * scale;
829 vec->g = val[rgb_map[1]] * scale;
830 vec->b = val[rgb_map[2]] * scale;
831 }
832 }
833 }
834 return 0;
835}
836
837static int nearest_sample_index(float *data, float x, int low, int hi)
838{
839 int mid;
840 if (x < data[low])
841 return low;
842
843 if (x > data[hi])
844 return hi;
845
846 for (;;) {
847 av_assert0(x >= data[low]);
848 av_assert0(x <= data[hi]);
849 av_assert0((hi-low) > 0);
850
851 if (hi - low == 1)
852 return low;
853
854 mid = (low + hi) / 2;
855
856 if (x < data[mid])
857 hi = mid;
858 else
859 low = mid;
860 }
861
862 return 0;
863}
864
865#define NEXT_FLOAT_OR_GOTO(value, label) \
866 if (!fget_next_word(line, sizeof(line) ,f)) { \
867 ret = AVERROR_INVALIDDATA; \
868 goto label; \
869 } \
870 if (av_sscanf(line, "%f", &value) != 1) { \
871 ret = AVERROR_INVALIDDATA; \
872 goto label; \
873 }
874
875static int parse_cinespace(AVFilterContext *ctx, FILE *f)
876{
877 LUT3DContext *lut3d = ctx->priv;
878 char line[MAX_LINE_SIZE];
879 float in_min[3] = {0.0, 0.0, 0.0};
880 float in_max[3] = {1.0, 1.0, 1.0};
881 float out_min[3] = {0.0, 0.0, 0.0};
882 float out_max[3] = {1.0, 1.0, 1.0};
883 int inside_metadata = 0, size, size2;
884 int prelut = 0;
885 int ret = 0;
886
887 int prelut_sizes[3] = {0, 0, 0};
888 float *in_prelut[3] = {NULL, NULL, NULL};
889 float *out_prelut[3] = {NULL, NULL, NULL};
890
891 NEXT_LINE_OR_GOTO(skip_line(line), end);
892 if (strncmp(line, "CSPLUTV100", 10)) {
893 av_log(ctx, AV_LOG_ERROR, "Not cineSpace LUT format\n");
894 ret = AVERROR(EINVAL);
895 goto end;
896 }
897
898 NEXT_LINE_OR_GOTO(skip_line(line), end);
899 if (strncmp(line, "3D", 2)) {
900 av_log(ctx, AV_LOG_ERROR, "Not 3D LUT format\n");
901 ret = AVERROR(EINVAL);
902 goto end;
903 }
904
905 while (1) {
906 NEXT_LINE_OR_GOTO(skip_line(line), end);
907
908 if (!strncmp(line, "BEGIN METADATA", 14)) {
909 inside_metadata = 1;
910 continue;
911 }
912 if (!strncmp(line, "END METADATA", 12)) {
913 inside_metadata = 0;
914 continue;
915 }
916 if (inside_metadata == 0) {
917 int size_r, size_g, size_b;
918
919 for (int i = 0; i < 3; i++) {
920 int npoints = strtol(line, NULL, 0);
921
922 if (npoints > 2) {
923 float v,last;
924
925 if (npoints > PRELUT_SIZE) {
926 av_log(ctx, AV_LOG_ERROR, "Prelut size too large.\n");
927 ret = AVERROR_INVALIDDATA;
928 goto end;
929 }
930
931 if (in_prelut[i] || out_prelut[i]) {
932 av_log(ctx, AV_LOG_ERROR, "Invalid file has multiple preluts.\n");
933 ret = AVERROR_INVALIDDATA;
934 goto end;
935 }
936
937 in_prelut[i] = (float*)av_malloc(npoints * sizeof(float));
938 out_prelut[i] = (float*)av_malloc(npoints * sizeof(float));
939 if (!in_prelut[i] || !out_prelut[i]) {
940 ret = AVERROR(ENOMEM);
941 goto end;
942 }
943
944 prelut_sizes[i] = npoints;
945 in_min[i] = FLT_MAX;
946 in_max[i] = -FLT_MAX;
947 out_min[i] = FLT_MAX;
948 out_max[i] = -FLT_MAX;
949
950 for (int j = 0; j < npoints; j++) {
951 NEXT_FLOAT_OR_GOTO(v, end)
952 in_min[i] = FFMIN(in_min[i], v);
953 in_max[i] = FFMAX(in_max[i], v);
954 in_prelut[i][j] = v;
955 if (j > 0 && v < last) {
956 av_log(ctx, AV_LOG_ERROR, "Invalid file, non increasing prelut.\n");
957 ret = AVERROR(ENOMEM);
958 goto end;
959 }
960 last = v;
961 }
962
963 for (int j = 0; j < npoints; j++) {
964 NEXT_FLOAT_OR_GOTO(v, end)
965 out_min[i] = FFMIN(out_min[i], v);
966 out_max[i] = FFMAX(out_max[i], v);
967 out_prelut[i][j] = v;
968 }
969
970 } else if (npoints == 2) {
971 NEXT_LINE_OR_GOTO(skip_line(line), end);
972 if (av_sscanf(line, "%f %f", &in_min[i], &in_max[i]) != 2) {
973 ret = AVERROR_INVALIDDATA;
974 goto end;
975 }
976 NEXT_LINE_OR_GOTO(skip_line(line), end);
977 if (av_sscanf(line, "%f %f", &out_min[i], &out_max[i]) != 2) {
978 ret = AVERROR_INVALIDDATA;
979 goto end;
980 }
981
982 } else {
983 av_log(ctx, AV_LOG_ERROR, "Unsupported number of pre-lut points.\n");
984 ret = AVERROR_PATCHWELCOME;
985 goto end;
986 }
987
988 NEXT_LINE_OR_GOTO(skip_line(line), end);
989 }
990
991 if (av_sscanf(line, "%d %d %d", &size_r, &size_g, &size_b) != 3) {
992 ret = AVERROR(EINVAL);
993 goto end;
994 }
995 if (size_r != size_g || size_r != size_b) {
996 av_log(ctx, AV_LOG_ERROR, "Unsupported size combination: %dx%dx%d.\n", size_r, size_g, size_b);
997 ret = AVERROR_PATCHWELCOME;
998 goto end;
999 }
1000
1001 size = size_r;
1002
1003 if (prelut_sizes[0] && prelut_sizes[1] && prelut_sizes[2])
1004 prelut = 1;
1005
1006 ret = allocate_3dlut(ctx, size, prelut);
1007 if (ret < 0)
1008 goto end;
1009 size2 = lut3d->lutsize2;
1010
1011 for (int k = 0; k < size; k++) {
1012 for (int j = 0; j < size; j++) {
1013 for (int i = 0; i < size; i++) {
1014 struct rgbvec *vec = &lut3d->lut[i * size2 + j * size + k];
1015
1016 NEXT_LINE_OR_GOTO(skip_line(line), end);
1017 if (av_sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3) {
1018 ret = AVERROR_INVALIDDATA;
1019 goto end;
1020 }
1021
1022 vec->r *= out_max[0] - out_min[0];
1023 vec->g *= out_max[1] - out_min[1];
1024 vec->b *= out_max[2] - out_min[2];
1025 }
1026 }
1027 }
1028
1029 break;
1030 }
1031 }
1032
1033 if (prelut) {
1034 for (int c = 0; c < 3; c++) {
1035
1036 lut3d->prelut.min[c] = in_min[c];
1037 lut3d->prelut.max[c] = in_max[c];
1038 lut3d->prelut.scale[c] = (1.0f / (float)(in_max[c] - in_min[c])) * (lut3d->prelut.size - 1);
1039
1040 for (int i = 0; i < lut3d->prelut.size; ++i) {
1041 float mix = (float) i / (float)(lut3d->prelut.size - 1);
1042 float x = lerpf(in_min[c], in_max[c], mix), a, b;
1043
1044 int idx = nearest_sample_index(in_prelut[c], x, 0, prelut_sizes[c]-1);
1045 av_assert0(idx + 1 < prelut_sizes[c]);
1046
1047 a = out_prelut[c][idx + 0];
1048 b = out_prelut[c][idx + 1];
1049 mix = x - in_prelut[c][idx];
1050
1051 lut3d->prelut.lut[c][i] = sanitizef(lerpf(a, b, mix));
1052 }
1053 }
1054 lut3d->scale.r = 1.00f;
1055 lut3d->scale.g = 1.00f;
1056 lut3d->scale.b = 1.00f;
1057
1058 } else {
1059 lut3d->scale.r = av_clipf(1. / (in_max[0] - in_min[0]), 0.f, 1.f);
1060 lut3d->scale.g = av_clipf(1. / (in_max[1] - in_min[1]), 0.f, 1.f);
1061 lut3d->scale.b = av_clipf(1. / (in_max[2] - in_min[2]), 0.f, 1.f);
1062 }
1063
1064end:
1065 for (int c = 0; c < 3; c++) {
1066 av_freep(&in_prelut[c]);
1067 av_freep(&out_prelut[c]);
1068 }
1069 return ret;
1070}
1071
1072static int set_identity_matrix(AVFilterContext *ctx, int size)
1073{
1074 LUT3DContext *lut3d = ctx->priv;
1075 int ret, i, j, k;
1076 const int size2 = size * size;
1077 const float c = 1. / (size - 1);
1078
1079 ret = allocate_3dlut(ctx, size, 0);
1080 if (ret < 0)
1081 return ret;
1082
1083 for (k = 0; k < size; k++) {
1084 for (j = 0; j < size; j++) {
1085 for (i = 0; i < size; i++) {
1086 struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
1087 vec->r = k * c;
1088 vec->g = j * c;
1089 vec->b = i * c;
1090 }
1091 }
1092 }
1093
1094 return 0;
1095}
1096
1114
1115#if CONFIG_LUT3D_FILTER || CONFIG_HALDCLUT_FILTER
1116
1117static int config_input(AVFilterLink *inlink)
1118{
1119 int depth, is16bit, isfloat, planar;
1120 LUT3DContext *lut3d = inlink->dst->priv;
1121 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
1122
1123 depth = desc->comp[0].depth;
1124 is16bit = desc->comp[0].depth > 8;
1125 planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;
1126 isfloat = desc->flags & AV_PIX_FMT_FLAG_FLOAT;
1127 ff_fill_rgba_map(lut3d->rgba_map, inlink->format);
1128 lut3d->step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
1129
1130#define SET_FUNC(name) do { \
1131 if (planar && !isfloat) { \
1132 switch (depth) { \
1133 case 8: lut3d->interp = interp_8_##name##_p8; break; \
1134 case 9: lut3d->interp = interp_16_##name##_p9; break; \
1135 case 10: lut3d->interp = interp_16_##name##_p10; break; \
1136 case 12: lut3d->interp = interp_16_##name##_p12; break; \
1137 case 14: lut3d->interp = interp_16_##name##_p14; break; \
1138 case 16: lut3d->interp = interp_16_##name##_p16; break; \
1139 } \
1140 } else if (isfloat) { lut3d->interp = interp_##name##_pf32; \
1141 } else if (is16bit) { lut3d->interp = interp_16_##name; \
1142 } else { lut3d->interp = interp_8_##name; } \
1143} while (0)
1144
1145 switch (lut3d->interpolation) {
1146 case INTERPOLATE_NEAREST: SET_FUNC(nearest); break;
1147 case INTERPOLATE_TRILINEAR: SET_FUNC(trilinear); break;
1148 case INTERPOLATE_TETRAHEDRAL: SET_FUNC(tetrahedral); break;
1149 case INTERPOLATE_PYRAMID: SET_FUNC(pyramid); break;
1150 case INTERPOLATE_PRISM: SET_FUNC(prism); break;
1151 default:
1152 av_assert0(0);
1153 }
1154
1155#if ARCH_X86 && HAVE_X86ASM
1156 ff_lut3d_init_x86(lut3d, desc);
1157#endif
1158
1159 return 0;
1160}
1161
1162static AVFrame *apply_lut(AVFilterLink *inlink, AVFrame *in)
1163{
1164 AVFilterContext *ctx = inlink->dst;
1165 LUT3DContext *lut3d = ctx->priv;
1166 AVFilterLink *outlink = inlink->dst->outputs[0];
1167 AVFrame *out;
1168 ThreadData td;
1169
1170 if (av_frame_is_writable(in)) {
1171 out = in;
1172 } else {
1173 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
1174 if (!out) {
1175 av_frame_free(&in);
1176 return NULL;
1177 }
1178 av_frame_copy_props(out, in);
1179 }
1180
1181 av_frame_side_data_remove_by_props(&out->side_data, &out->nb_side_data,
1182 AV_SIDE_DATA_PROP_COLOR_DEPENDENT);
1183
1184 td.in = in;
1185 td.out = out;
1186 ff_filter_execute(ctx, lut3d->interp, &td, NULL,
1187 FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
1188
1189 if (out != in)
1190 av_frame_free(&in);
1191
1192 return out;
1193}
1194
1195static int filter_frame(AVFilterLink *inlink, AVFrame *in)
1196{
1197 AVFilterLink *outlink = inlink->dst->outputs[0];
1198 AVFrame *out = apply_lut(inlink, in);
1199 if (!out)
1200 return AVERROR(ENOMEM);
1201 return ff_filter_frame(outlink, out);
1202}
1203
1204static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
1205 char *res, int res_len, int flags)
1206{
1207 int ret;
1208
1209 ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
1210 if (ret < 0)
1211 return ret;
1212
1213 return config_input(ctx->inputs[0]);
1214}
1215
1216/* These options are shared between several filters;
1217 * &lut3d_haldclut_options[COMMON_OPTIONS_OFFSET] must always
1218 * point to the first of the COMMON_OPTIONS. */
1219#define COMMON_OPTIONS_OFFSET CONFIG_LUT3D_FILTER
1220static const AVOption lut3d_haldclut_options[] = {
1221#if CONFIG_LUT3D_FILTER
1222 { "file", "set 3D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
1223#endif
1224#if CONFIG_HALDCLUT_FILTER
1225 { "clut", "when to process CLUT", OFFSET(clut), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, .flags = TFLAGS, .unit = "clut" },
1226 { "first", "process only first CLUT, ignore rest", 0, AV_OPT_TYPE_CONST, {.i64=0}, .flags = TFLAGS, .unit = "clut" },
1227 { "all", "process all CLUTs", 0, AV_OPT_TYPE_CONST, {.i64=1}, .flags = TFLAGS, .unit = "clut" },
1228#endif
1229 COMMON_OPTIONS
1230};
1231
1232#if CONFIG_LUT3D_FILTER
1233
1234AVFILTER_DEFINE_CLASS_EXT(lut3d, "lut3d", lut3d_haldclut_options);
1235
1236static av_cold int lut3d_init(AVFilterContext *ctx)
1237{
1238 int ret;
1239 FILE *f;
1240 const char *ext;
1241 LUT3DContext *lut3d = ctx->priv;
1242
1243 lut3d->scale.r = lut3d->scale.g = lut3d->scale.b = 1.f;
1244
1245 if (!lut3d->file) {
1246 return set_identity_matrix(ctx, 32);
1247 }
1248
1249 f = avpriv_fopen_utf8(lut3d->file, "r");
1250 if (!f) {
1251 ret = AVERROR(errno);
1252 av_log(ctx, AV_LOG_ERROR, "%s: %s\n", lut3d->file, av_err2str(ret));
1253 return ret;
1254 }
1255
1256 ext = strrchr(lut3d->file, '.');
1257 if (!ext) {
1258 av_log(ctx, AV_LOG_ERROR, "Unable to guess the format from the extension\n");
1259 ret = AVERROR_INVALIDDATA;
1260 goto end;
1261 }
1262 ext++;
1263
1264 if (!av_strcasecmp(ext, "dat")) {
1265 ret = parse_dat(ctx, f);
1266 } else if (!av_strcasecmp(ext, "3dl")) {
1267 ret = parse_3dl(ctx, f);
1268 } else if (!av_strcasecmp(ext, "cube")) {
1269 ret = parse_cube(ctx, f);
1270 } else if (!av_strcasecmp(ext, "m3d")) {
1271 ret = parse_m3d(ctx, f);
1272 } else if (!av_strcasecmp(ext, "csp")) {
1273 ret = parse_cinespace(ctx, f);
1274 } else {
1275 av_log(ctx, AV_LOG_ERROR, "Unrecognized '.%s' file type\n", ext);
1276 ret = AVERROR(EINVAL);
1277 }
1278
1279 if (!ret && !lut3d->lutsize) {
1280 av_log(ctx, AV_LOG_ERROR, "3D LUT is empty\n");
1281 ret = AVERROR_INVALIDDATA;
1282 }
1283
1284end:
1285 fclose(f);
1286 return ret;
1287}
1288
1289static av_cold void lut3d_uninit(AVFilterContext *ctx)
1290{
1291 LUT3DContext *lut3d = ctx->priv;
1292 int i;
1293 av_freep(&lut3d->lut);
1294
1295 for (i = 0; i < 3; i++) {
1296 av_freep(&lut3d->prelut.lut[i]);
1297 }
1298}
1299
1300static const AVFilterPad lut3d_inputs[] = {
1301 {
1302 .name = "default",
1303 .type = AVMEDIA_TYPE_VIDEO,
1304 .filter_frame = filter_frame,
1305 .config_props = config_input,
1306 },
1307};
1308
1309const FFFilter ff_vf_lut3d = {
1310 .p.name = "lut3d",
1311 .p.description = NULL_IF_CONFIG_SMALL("Adjust colors using a 3D LUT."),
1312 .p.priv_class = &lut3d_class,
1313 .p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
1314 AVFILTER_FLAG_SLICE_THREADS,
1315 .priv_size = sizeof(LUT3DContext),
1316 .init = lut3d_init,
1317 .uninit = lut3d_uninit,
1318 FILTER_INPUTS(lut3d_inputs),
1319 FILTER_OUTPUTS(ff_video_default_filterpad),
1320 FILTER_PIXFMTS_ARRAY(pix_fmts),
1321 .process_command = process_command,
1322};
1323#endif
1324
1325#if CONFIG_HALDCLUT_FILTER
1326
1327static void update_clut_packed(LUT3DContext *lut3d, const AVFrame *frame)
1328{
1329 const uint8_t *data = frame->data[0];
1330 const ptrdiff_t linesize = frame->linesize[0];
1331 const int w = lut3d->clut_width;
1332 const int step = lut3d->clut_step;
1333 const uint8_t *rgba_map = lut3d->clut_rgba_map;
1334 const int level = lut3d->lutsize;
1335 const int level2 = lut3d->lutsize2;
1336
1337#define LOAD_CLUT(nbits) do { \
1338 int i, j, k, x = 0, y = 0; \
1339 \
1340 for (k = 0; k < level; k++) { \
1341 for (j = 0; j < level; j++) { \
1342 for (i = 0; i < level; i++) { \
1343 const uint##nbits##_t *src = (const uint##nbits##_t *) \
1344 (data + y*linesize + x*step); \
1345 struct rgbvec *vec = &lut3d->lut[i * level2 + j * level + k]; \
1346 vec->r = src[rgba_map[0]] / (float)((1<<(nbits)) - 1); \
1347 vec->g = src[rgba_map[1]] / (float)((1<<(nbits)) - 1); \
1348 vec->b = src[rgba_map[2]] / (float)((1<<(nbits)) - 1); \
1349 if (++x == w) { \
1350 x = 0; \
1351 y++; \
1352 } \
1353 } \
1354 } \
1355 } \
1356} while (0)
1357
1358 switch (lut3d->clut_bits) {
1359 case 8: LOAD_CLUT(8); break;
1360 case 16: LOAD_CLUT(16); break;
1361 }
1362}
1363
1364static void update_clut_planar(LUT3DContext *lut3d, const AVFrame *frame)
1365{
1366 const uint8_t *datag = frame->data[0];
1367 const uint8_t *datab = frame->data[1];
1368 const uint8_t *datar = frame->data[2];
1369 const ptrdiff_t glinesize = frame->linesize[0];
1370 const ptrdiff_t blinesize = frame->linesize[1];
1371 const ptrdiff_t rlinesize = frame->linesize[2];
1372 const int w = lut3d->clut_width;
1373 const int level = lut3d->lutsize;
1374 const int level2 = lut3d->lutsize2;
1375
1376#define LOAD_CLUT_PLANAR(nbits, depth) do { \
1377 int i, j, k, x = 0, y = 0; \
1378 \
1379 for (k = 0; k < level; k++) { \
1380 for (j = 0; j < level; j++) { \
1381 for (i = 0; i < level; i++) { \
1382 const uint##nbits##_t *gsrc = (const uint##nbits##_t *) \
1383 (datag + y*glinesize); \
1384 const uint##nbits##_t *bsrc = (const uint##nbits##_t *) \
1385 (datab + y*blinesize); \
1386 const uint##nbits##_t *rsrc = (const uint##nbits##_t *) \
1387 (datar + y*rlinesize); \
1388 struct rgbvec *vec = &lut3d->lut[i * level2 + j * level + k]; \
1389 vec->r = gsrc[x] / (float)((1<<(depth)) - 1); \
1390 vec->g = bsrc[x] / (float)((1<<(depth)) - 1); \
1391 vec->b = rsrc[x] / (float)((1<<(depth)) - 1); \
1392 if (++x == w) { \
1393 x = 0; \
1394 y++; \
1395 } \
1396 } \
1397 } \
1398 } \
1399} while (0)
1400
1401 switch (lut3d->clut_bits) {
1402 case 8: LOAD_CLUT_PLANAR(8, 8); break;
1403 case 9: LOAD_CLUT_PLANAR(16, 9); break;
1404 case 10: LOAD_CLUT_PLANAR(16, 10); break;
1405 case 12: LOAD_CLUT_PLANAR(16, 12); break;
1406 case 14: LOAD_CLUT_PLANAR(16, 14); break;
1407 case 16: LOAD_CLUT_PLANAR(16, 16); break;
1408 }
1409}
1410
1411static void update_clut_float(LUT3DContext *lut3d, const AVFrame *frame)
1412{
1413 const uint8_t *datag = frame->data[0];
1414 const uint8_t *datab = frame->data[1];
1415 const uint8_t *datar = frame->data[2];
1416 const ptrdiff_t glinesize = frame->linesize[0];
1417 const ptrdiff_t blinesize = frame->linesize[1];
1418 const ptrdiff_t rlinesize = frame->linesize[2];
1419 const int w = lut3d->clut_width;
1420 const int level = lut3d->lutsize;
1421 const int level2 = lut3d->lutsize2;
1422
1423 int i, j, k, x = 0, y = 0;
1424
1425 for (k = 0; k < level; k++) {
1426 for (j = 0; j < level; j++) {
1427 for (i = 0; i < level; i++) {
1428 const float *gsrc = (const float *)(datag + y*glinesize);
1429 const float *bsrc = (const float *)(datab + y*blinesize);
1430 const float *rsrc = (const float *)(datar + y*rlinesize);
1431 struct rgbvec *vec = &lut3d->lut[i * level2 + j * level + k];
1432 vec->r = rsrc[x];
1433 vec->g = gsrc[x];
1434 vec->b = bsrc[x];
1435 if (++x == w) {
1436 x = 0;
1437 y++;
1438 }
1439 }
1440 }
1441 }
1442}
1443
1444static int config_output(AVFilterLink *outlink)
1445{
1446 AVFilterContext *ctx = outlink->src;
1447 LUT3DContext *lut3d = ctx->priv;
1448 int ret;
1449
1450 ret = ff_framesync_init_dualinput(&lut3d->fs, ctx);
1451 if (ret < 0)
1452 return ret;
1453 outlink->w = ctx->inputs[0]->w;
1454 outlink->h = ctx->inputs[0]->h;
1455 outlink->time_base = ctx->inputs[0]->time_base;
1456 if ((ret = ff_framesync_configure(&lut3d->fs)) < 0)
1457 return ret;
1458 return 0;
1459}
1460
1461static int activate(AVFilterContext *ctx)
1462{
1463 LUT3DContext *s = ctx->priv;
1464 return ff_framesync_activate(&s->fs);
1465}
1466
1467static int config_clut(AVFilterLink *inlink)
1468{
1469 int size, level, w, h;
1470 AVFilterContext *ctx = inlink->dst;
1471 LUT3DContext *lut3d = ctx->priv;
1472 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
1473
1474 av_assert0(desc);
1475
1476 lut3d->clut_bits = desc->comp[0].depth;
1477 lut3d->clut_planar = av_pix_fmt_count_planes(inlink->format) > 1;
1478 lut3d->clut_float = desc->flags & AV_PIX_FMT_FLAG_FLOAT;
1479
1480 lut3d->clut_step = av_get_padded_bits_per_pixel(desc) >> 3;
1481 ff_fill_rgba_map(lut3d->clut_rgba_map, inlink->format);
1482
1483 if (inlink->w > inlink->h)
1484 av_log(ctx, AV_LOG_INFO, "Padding on the right (%dpx) of the "
1485 "Hald CLUT will be ignored\n", inlink->w - inlink->h);
1486 else if (inlink->w < inlink->h)
1487 av_log(ctx, AV_LOG_INFO, "Padding at the bottom (%dpx) of the "
1488 "Hald CLUT will be ignored\n", inlink->h - inlink->w);
1489 lut3d->clut_width = w = h = FFMIN(inlink->w, inlink->h);
1490
1491 for (level = 1; level*level*level < w; level++);
1492 size = level*level*level;
1493 if (size != w) {
1494 av_log(ctx, AV_LOG_WARNING, "The Hald CLUT width does not match the level\n");
1495 return AVERROR_INVALIDDATA;
1496 }
1497 av_assert0(w == h && w == size);
1498 level *= level;
1499 if (level > MAX_LEVEL) {
1500 const int max_clut_level = sqrt(MAX_LEVEL);
1501 const int max_clut_size = max_clut_level*max_clut_level*max_clut_level;
1502 av_log(ctx, AV_LOG_ERROR, "Too large Hald CLUT "
1503 "(maximum level is %d, or %dx%d CLUT)\n",
1504 max_clut_level, max_clut_size, max_clut_size);
1505 return AVERROR(EINVAL);
1506 }
1507
1508 return allocate_3dlut(ctx, level, 0);
1509}
1510
1511static int update_apply_clut(FFFrameSync *fs)
1512{
1513 AVFilterContext *ctx = fs->parent;
1514 LUT3DContext *lut3d = ctx->priv;
1515 AVFilterLink *inlink = ctx->inputs[0];
1516 AVFrame *master, *second, *out;
1517 int ret;
1518
1519 ret = ff_framesync_dualinput_get(fs, &master, &second);
1520 if (ret < 0)
1521 return ret;
1522 if (!second)
1523 return ff_filter_frame(ctx->outputs[0], master);
1524 if (lut3d->clut || !lut3d->got_clut) {
1525 if (lut3d->clut_float)
1526 update_clut_float(ctx->priv, second);
1527 else if (lut3d->clut_planar)
1528 update_clut_planar(ctx->priv, second);
1529 else
1530 update_clut_packed(ctx->priv, second);
1531 lut3d->got_clut = 1;
1532 }
1533 out = apply_lut(inlink, master);
1534 return ff_filter_frame(ctx->outputs[0], out);
1535}
1536
1537static av_cold int haldclut_init(AVFilterContext *ctx)
1538{
1539 LUT3DContext *lut3d = ctx->priv;
1540 lut3d->scale.r = lut3d->scale.g = lut3d->scale.b = 1.f;
1541 lut3d->fs.on_event = update_apply_clut;
1542 return 0;
1543}
1544
1545static av_cold void haldclut_uninit(AVFilterContext *ctx)
1546{
1547 LUT3DContext *lut3d = ctx->priv;
1548 ff_framesync_uninit(&lut3d->fs);
1549 av_freep(&lut3d->lut);
1550}
1551
1552FRAMESYNC_DEFINE_CLASS_EXT(haldclut, LUT3DContext, fs,
1553 &lut3d_haldclut_options[COMMON_OPTIONS_OFFSET]);
1554
1555static const AVFilterPad haldclut_inputs[] = {
1556 {
1557 .name = "main",
1558 .type = AVMEDIA_TYPE_VIDEO,
1559 .config_props = config_input,
1560 },{
1561 .name = "clut",
1562 .type = AVMEDIA_TYPE_VIDEO,
1563 .config_props = config_clut,
1564 },
1565};
1566
1567static const AVFilterPad haldclut_outputs[] = {
1568 {
1569 .name = "default",
1570 .type = AVMEDIA_TYPE_VIDEO,
1571 .config_props = config_output,
1572 },
1573};
1574
1575const FFFilter ff_vf_haldclut = {
1576 .p.name = "haldclut",
1577 .p.description = NULL_IF_CONFIG_SMALL("Adjust colors using a Hald CLUT."),
1578 .p.priv_class = &haldclut_class,
1579 .p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
1580 AVFILTER_FLAG_SLICE_THREADS,
1581 .priv_size = sizeof(LUT3DContext),
1582 .preinit = haldclut_framesync_preinit,
1583 .init = haldclut_init,
1584 .uninit = haldclut_uninit,
1585 .activate = activate,
1586 FILTER_INPUTS(haldclut_inputs),
1587 FILTER_OUTPUTS(haldclut_outputs),
1588 FILTER_PIXFMTS_ARRAY(pix_fmts),
1589 .process_command = process_command,
1590};
1591#endif
1592
1593#endif /* CONFIG_LUT3D_FILTER || CONFIG_HALDCLUT_FILTER */
1594
1595#if CONFIG_LUT1D_FILTER
1596
1597enum interp_1d_mode {
1598 INTERPOLATE_1D_NEAREST,
1599 INTERPOLATE_1D_LINEAR,
1600 INTERPOLATE_1D_CUBIC,
1601 INTERPOLATE_1D_COSINE,
1602 INTERPOLATE_1D_SPLINE,
1603 NB_INTERP_1D_MODE
1604};
1605
1606#define MAX_1D_LEVEL 65536
1607
1608typedef struct LUT1DContext {
1609 const AVClass *class;
1610 char *file;
1611 int interpolation; ///<interp_1d_mode
1612 struct rgbvec scale;
1613 uint8_t rgba_map[4];
1614 int step;
1615 float lut[3][MAX_1D_LEVEL];
1616 int lutsize;
1617 avfilter_action_func *interp;
1618} LUT1DContext;
1619
1620#undef OFFSET
1621#define OFFSET(x) offsetof(LUT1DContext, x)
1622
1623static void set_identity_matrix_1d(LUT1DContext *lut1d, int size)
1624{
1625 const float c = 1. / (size - 1);
1626 int i;
1627
1628 lut1d->lutsize = size;
1629 for (i = 0; i < size; i++) {
1630 lut1d->lut[0][i] = i * c;
1631 lut1d->lut[1][i] = i * c;
1632 lut1d->lut[2][i] = i * c;
1633 }
1634}
1635
1636static int parse_cinespace_1d(AVFilterContext *ctx, FILE *f)
1637{
1638 LUT1DContext *lut1d = ctx->priv;
1639 char line[MAX_LINE_SIZE];
1640 float in_min[3] = {0.0, 0.0, 0.0};
1641 float in_max[3] = {1.0, 1.0, 1.0};
1642 float out_min[3] = {0.0, 0.0, 0.0};
1643 float out_max[3] = {1.0, 1.0, 1.0};
1644 int inside_metadata = 0, size;
1645
1646 NEXT_LINE(skip_line(line));
1647 if (strncmp(line, "CSPLUTV100", 10)) {
1648 av_log(ctx, AV_LOG_ERROR, "Not cineSpace LUT format\n");
1649 return AVERROR(EINVAL);
1650 }
1651
1652 NEXT_LINE(skip_line(line));
1653 if (strncmp(line, "1D", 2)) {
1654 av_log(ctx, AV_LOG_ERROR, "Not 1D LUT format\n");
1655 return AVERROR(EINVAL);
1656 }
1657
1658 while (1) {
1659 NEXT_LINE(skip_line(line));
1660
1661 if (!strncmp(line, "BEGIN METADATA", 14)) {
1662 inside_metadata = 1;
1663 continue;
1664 }
1665 if (!strncmp(line, "END METADATA", 12)) {
1666 inside_metadata = 0;
1667 continue;
1668 }
1669 if (inside_metadata == 0) {
1670 for (int i = 0; i < 3; i++) {
1671 int npoints = strtol(line, NULL, 0);
1672
1673 if (npoints != 2) {
1674 av_log(ctx, AV_LOG_ERROR, "Unsupported number of pre-lut points.\n");
1675 return AVERROR_PATCHWELCOME;
1676 }
1677
1678 NEXT_LINE(skip_line(line));
1679 if (av_sscanf(line, "%f %f", &in_min[i], &in_max[i]) != 2)
1680 return AVERROR_INVALIDDATA;
1681 NEXT_LINE(skip_line(line));
1682 if (av_sscanf(line, "%f %f", &out_min[i], &out_max[i]) != 2)
1683 return AVERROR_INVALIDDATA;
1684 NEXT_LINE(skip_line(line));
1685 }
1686
1687 size = strtol(line, NULL, 0);
1688
1689 if (size < 2 || size > MAX_1D_LEVEL) {
1690 av_log(ctx, AV_LOG_ERROR, "Too large or invalid 1D LUT size\n");
1691 return AVERROR(EINVAL);
1692 }
1693
1694 lut1d->lutsize = size;
1695
1696 for (int i = 0; i < size; i++) {
1697 NEXT_LINE(skip_line(line));
1698 if (av_sscanf(line, "%f %f %f", &lut1d->lut[0][i], &lut1d->lut[1][i], &lut1d->lut[2][i]) != 3)
1699 return AVERROR_INVALIDDATA;
1700 lut1d->lut[0][i] *= out_max[0] - out_min[0];
1701 lut1d->lut[1][i] *= out_max[1] - out_min[1];
1702 lut1d->lut[2][i] *= out_max[2] - out_min[2];
1703 }
1704
1705 break;
1706 }
1707 }
1708
1709 lut1d->scale.r = av_clipf(1. / (in_max[0] - in_min[0]), 0.f, 1.f);
1710 lut1d->scale.g = av_clipf(1. / (in_max[1] - in_min[1]), 0.f, 1.f);
1711 lut1d->scale.b = av_clipf(1. / (in_max[2] - in_min[2]), 0.f, 1.f);
1712
1713 return 0;
1714}
1715
1716static int parse_cube_1d(AVFilterContext *ctx, FILE *f)
1717{
1718 LUT1DContext *lut1d = ctx->priv;
1719 char line[MAX_LINE_SIZE];
1720 float min[3] = {0.0, 0.0, 0.0};
1721 float max[3] = {1.0, 1.0, 1.0};
1722
1723 while (fgets(line, sizeof(line), f)) {
1724 if (!strncmp(line, "LUT_1D_SIZE", 11)) {
1725 const int size = strtol(line + 12, NULL, 0);
1726 int i;
1727
1728 if (size < 2 || size > MAX_1D_LEVEL) {
1729 av_log(ctx, AV_LOG_ERROR, "Too large or invalid 1D LUT size\n");
1730 return AVERROR(EINVAL);
1731 }
1732 lut1d->lutsize = size;
1733 for (i = 0; i < size; i++) {
1734 do {
1735try_again:
1736 NEXT_LINE(0);
1737 if (!strncmp(line, "DOMAIN_", 7)) {
1738 float *vals = NULL;
1739 if (!strncmp(line + 7, "MIN ", 4)) vals = min;
1740 else if (!strncmp(line + 7, "MAX ", 4)) vals = max;
1741 if (!vals)
1742 return AVERROR_INVALIDDATA;
1743 if (av_sscanf(line + 11, "%f %f %f", vals, vals + 1, vals + 2) != 3)
1744 return AVERROR_INVALIDDATA;
1745 av_log(ctx, AV_LOG_DEBUG, "min: %f %f %f | max: %f %f %f\n",
1746 min[0], min[1], min[2], max[0], max[1], max[2]);
1747 goto try_again;
1748 } else if (!strncmp(line, "LUT_1D_INPUT_RANGE ", 19)) {
1749 if (av_sscanf(line + 19, "%f %f", min, max) != 2)
1750 return AVERROR_INVALIDDATA;
1751 min[1] = min[2] = min[0];
1752 max[1] = max[2] = max[0];
1753 goto try_again;
1754 } else if (!strncmp(line, "TITLE", 5)) {
1755 goto try_again;
1756 }
1757 } while (skip_line(line));
1758 if (av_sscanf(line, "%f %f %f", &lut1d->lut[0][i], &lut1d->lut[1][i], &lut1d->lut[2][i]) != 3)
1759 return AVERROR_INVALIDDATA;
1760 }
1761 break;
1762 }
1763 }
1764
1765 lut1d->scale.r = av_clipf(1. / (max[0] - min[0]), 0.f, 1.f);
1766 lut1d->scale.g = av_clipf(1. / (max[1] - min[1]), 0.f, 1.f);
1767 lut1d->scale.b = av_clipf(1. / (max[2] - min[2]), 0.f, 1.f);
1768
1769 return 0;
1770}
1771
1772static const AVOption lut1d_options[] = {
1773 { "file", "set 1D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = TFLAGS },
1774 { "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_1D_LINEAR}, 0, NB_INTERP_1D_MODE-1, TFLAGS, .unit = "interp_mode" },
1775 { "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_NEAREST}, 0, 0, TFLAGS, .unit = "interp_mode" },
1776 { "linear", "use values from the linear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_LINEAR}, 0, 0, TFLAGS, .unit = "interp_mode" },
1777 { "cosine", "use values from the cosine interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_COSINE}, 0, 0, TFLAGS, .unit = "interp_mode" },
1778 { "cubic", "use values from the cubic interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_CUBIC}, 0, 0, TFLAGS, .unit = "interp_mode" },
1779 { "spline", "use values from the spline interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_SPLINE}, 0, 0, TFLAGS, .unit = "interp_mode" },
1780 { NULL }
1781};
1782
1783AVFILTER_DEFINE_CLASS(lut1d);
1784
1785static inline float interp_1d_nearest(const LUT1DContext *lut1d,
1786 int idx, const float s)
1787{
1788 return lut1d->lut[idx][NEAR(s)];
1789}
1790
1791#define NEXT1D(x) (FFMIN((int)(x) + 1, lut1d->lutsize - 1))
1792
1793static inline float interp_1d_linear(const LUT1DContext *lut1d,
1794 int idx, const float s)
1795{
1796 const int prev = PREV(s);
1797 const int next = NEXT1D(s);
1798 const float d = s - prev;
1799 const float p = lut1d->lut[idx][prev];
1800 const float n = lut1d->lut[idx][next];
1801
1802 return lerpf(p, n, d);
1803}
1804
1805static inline float interp_1d_cosine(const LUT1DContext *lut1d,
1806 int idx, const float s)
1807{
1808 const int prev = PREV(s);
1809 const int next = NEXT1D(s);
1810 const float d = s - prev;
1811 const float p = lut1d->lut[idx][prev];
1812 const float n = lut1d->lut[idx][next];
1813 const float m = (1.f - cosf(d * M_PI)) * .5f;
1814
1815 return lerpf(p, n, m);
1816}
1817
1818static inline float interp_1d_cubic(const LUT1DContext *lut1d,
1819 int idx, const float s)
1820{
1821 const int prev = PREV(s);
1822 const int next = NEXT1D(s);
1823 const float mu = s - prev;
1824 float a0, a1, a2, a3, mu2;
1825
1826 float y0 = lut1d->lut[idx][FFMAX(prev - 1, 0)];
1827 float y1 = lut1d->lut[idx][prev];
1828 float y2 = lut1d->lut[idx][next];
1829 float y3 = lut1d->lut[idx][FFMIN(next + 1, lut1d->lutsize - 1)];
1830
1831
1832 mu2 = mu * mu;
1833 a0 = y3 - y2 - y0 + y1;
1834 a1 = y0 - y1 - a0;
1835 a2 = y2 - y0;
1836 a3 = y1;
1837
1838 return a0 * mu * mu2 + a1 * mu2 + a2 * mu + a3;
1839}
1840
1841static inline float interp_1d_spline(const LUT1DContext *lut1d,
1842 int idx, const float s)
1843{
1844 const int prev = PREV(s);
1845 const int next = NEXT1D(s);
1846 const float x = s - prev;
1847 float c0, c1, c2, c3;
1848
1849 float y0 = lut1d->lut[idx][FFMAX(prev - 1, 0)];
1850 float y1 = lut1d->lut[idx][prev];
1851 float y2 = lut1d->lut[idx][next];
1852 float y3 = lut1d->lut[idx][FFMIN(next + 1, lut1d->lutsize - 1)];
1853
1854 c0 = y1;
1855 c1 = .5f * (y2 - y0);
1856 c2 = y0 - 2.5f * y1 + 2.f * y2 - .5f * y3;
1857 c3 = .5f * (y3 - y0) + 1.5f * (y1 - y2);
1858
1859 return ((c3 * x + c2) * x + c1) * x + c0;
1860}
1861
1862#define DEFINE_INTERP_FUNC_PLANAR_1D(name, nbits, depth) \
1863static int interp_1d_##nbits##_##name##_p##depth(AVFilterContext *ctx, \
1864 void *arg, int jobnr, \
1865 int nb_jobs) \
1866{ \
1867 int x, y; \
1868 const LUT1DContext *lut1d = ctx->priv; \
1869 const ThreadData *td = arg; \
1870 const AVFrame *in = td->in; \
1871 const AVFrame *out = td->out; \
1872 const int direct = out == in; \
1873 const int slice_start = ff_slice_pos(in->height, jobnr, nb_jobs); \
1874 const int slice_end = ff_slice_pos(in->height, jobnr + 1, nb_jobs); \
1875 uint8_t *grow = out->data[0] + slice_start * out->linesize[0]; \
1876 uint8_t *brow = out->data[1] + slice_start * out->linesize[1]; \
1877 uint8_t *rrow = out->data[2] + slice_start * out->linesize[2]; \
1878 uint8_t *arow = out->data[3] + slice_start * out->linesize[3]; \
1879 const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0]; \
1880 const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1]; \
1881 const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2]; \
1882 const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3]; \
1883 const float factor = (1 << depth) - 1; \
1884 const float scale_r = (lut1d->scale.r / factor) * (lut1d->lutsize - 1); \
1885 const float scale_g = (lut1d->scale.g / factor) * (lut1d->lutsize - 1); \
1886 const float scale_b = (lut1d->scale.b / factor) * (lut1d->lutsize - 1); \
1887 \
1888 for (y = slice_start; y < slice_end; y++) { \
1889 uint##nbits##_t *dstg = (uint##nbits##_t *)grow; \
1890 uint##nbits##_t *dstb = (uint##nbits##_t *)brow; \
1891 uint##nbits##_t *dstr = (uint##nbits##_t *)rrow; \
1892 uint##nbits##_t *dsta = (uint##nbits##_t *)arow; \
1893 const uint##nbits##_t *srcg = (const uint##nbits##_t *)srcgrow; \
1894 const uint##nbits##_t *srcb = (const uint##nbits##_t *)srcbrow; \
1895 const uint##nbits##_t *srcr = (const uint##nbits##_t *)srcrrow; \
1896 const uint##nbits##_t *srca = (const uint##nbits##_t *)srcarow; \
1897 for (x = 0; x < in->width; x++) { \
1898 float r = srcr[x] * scale_r; \
1899 float g = srcg[x] * scale_g; \
1900 float b = srcb[x] * scale_b; \
1901 r = interp_1d_##name(lut1d, 0, r); \
1902 g = interp_1d_##name(lut1d, 1, g); \
1903 b = interp_1d_##name(lut1d, 2, b); \
1904 dstr[x] = av_clip_uintp2(r * factor, depth); \
1905 dstg[x] = av_clip_uintp2(g * factor, depth); \
1906 dstb[x] = av_clip_uintp2(b * factor, depth); \
1907 if (!direct && in->linesize[3]) \
1908 dsta[x] = srca[x]; \
1909 } \
1910 grow += out->linesize[0]; \
1911 brow += out->linesize[1]; \
1912 rrow += out->linesize[2]; \
1913 arow += out->linesize[3]; \
1914 srcgrow += in->linesize[0]; \
1915 srcbrow += in->linesize[1]; \
1916 srcrrow += in->linesize[2]; \
1917 srcarow += in->linesize[3]; \
1918 } \
1919 return 0; \
1920}
1921
1922DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 8, 8)
1923DEFINE_INTERP_FUNC_PLANAR_1D(linear, 8, 8)
1924DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 8, 8)
1925DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 8, 8)
1926DEFINE_INTERP_FUNC_PLANAR_1D(spline, 8, 8)
1927
1928DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 9)
1929DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 9)
1930DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 9)
1931DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 9)
1932DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 9)
1933
1934DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 10)
1935DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 10)
1936DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 10)
1937DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 10)
1938DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 10)
1939
1940DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 12)
1941DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 12)
1942DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 12)
1943DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 12)
1944DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 12)
1945
1946DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 14)
1947DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 14)
1948DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 14)
1949DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 14)
1950DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 14)
1951
1952DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 16)
1953DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 16)
1954DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 16)
1955DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 16)
1956DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 16)
1957
1958#define DEFINE_INTERP_FUNC_PLANAR_1D_FLOAT(name, depth) \
1959static int interp_1d_##name##_pf##depth(AVFilterContext *ctx, \
1960 void *arg, int jobnr, \
1961 int nb_jobs) \
1962{ \
1963 int x, y; \
1964 const LUT1DContext *lut1d = ctx->priv; \
1965 const ThreadData *td = arg; \
1966 const AVFrame *in = td->in; \
1967 const AVFrame *out = td->out; \
1968 const int direct = out == in; \
1969 const int slice_start = ff_slice_pos(in->height, jobnr, nb_jobs); \
1970 const int slice_end = ff_slice_pos(in->height, jobnr + 1, nb_jobs); \
1971 uint8_t *grow = out->data[0] + slice_start * out->linesize[0]; \
1972 uint8_t *brow = out->data[1] + slice_start * out->linesize[1]; \
1973 uint8_t *rrow = out->data[2] + slice_start * out->linesize[2]; \
1974 uint8_t *arow = out->data[3] + slice_start * out->linesize[3]; \
1975 const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0]; \
1976 const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1]; \
1977 const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2]; \
1978 const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3]; \
1979 const float lutsize = lut1d->lutsize - 1; \
1980 const float scale_r = lut1d->scale.r * lutsize; \
1981 const float scale_g = lut1d->scale.g * lutsize; \
1982 const float scale_b = lut1d->scale.b * lutsize; \
1983 \
1984 for (y = slice_start; y < slice_end; y++) { \
1985 float *dstg = (float *)grow; \
1986 float *dstb = (float *)brow; \
1987 float *dstr = (float *)rrow; \
1988 float *dsta = (float *)arow; \
1989 const float *srcg = (const float *)srcgrow; \
1990 const float *srcb = (const float *)srcbrow; \
1991 const float *srcr = (const float *)srcrrow; \
1992 const float *srca = (const float *)srcarow; \
1993 for (x = 0; x < in->width; x++) { \
1994 float r = av_clipf(sanitizef(srcr[x]) * scale_r, 0.0f, lutsize); \
1995 float g = av_clipf(sanitizef(srcg[x]) * scale_g, 0.0f, lutsize); \
1996 float b = av_clipf(sanitizef(srcb[x]) * scale_b, 0.0f, lutsize); \
1997 r = interp_1d_##name(lut1d, 0, r); \
1998 g = interp_1d_##name(lut1d, 1, g); \
1999 b = interp_1d_##name(lut1d, 2, b); \
2000 dstr[x] = r; \
2001 dstg[x] = g; \
2002 dstb[x] = b; \
2003 if (!direct && in->linesize[3]) \
2004 dsta[x] = srca[x]; \
2005 } \
2006 grow += out->linesize[0]; \
2007 brow += out->linesize[1]; \
2008 rrow += out->linesize[2]; \
2009 arow += out->linesize[3]; \
2010 srcgrow += in->linesize[0]; \
2011 srcbrow += in->linesize[1]; \
2012 srcrrow += in->linesize[2]; \
2013 srcarow += in->linesize[3]; \
2014 } \
2015 return 0; \
2016}
2017
2018DEFINE_INTERP_FUNC_PLANAR_1D_FLOAT(nearest, 32)
2019DEFINE_INTERP_FUNC_PLANAR_1D_FLOAT(linear, 32)
2020DEFINE_INTERP_FUNC_PLANAR_1D_FLOAT(cosine, 32)
2021DEFINE_INTERP_FUNC_PLANAR_1D_FLOAT(cubic, 32)
2022DEFINE_INTERP_FUNC_PLANAR_1D_FLOAT(spline, 32)
2023
2024#define DEFINE_INTERP_FUNC_1D(name, nbits) \
2025static int interp_1d_##nbits##_##name(AVFilterContext *ctx, void *arg, \
2026 int jobnr, int nb_jobs) \
2027{ \
2028 int x, y; \
2029 const LUT1DContext *lut1d = ctx->priv; \
2030 const ThreadData *td = arg; \
2031 const AVFrame *in = td->in; \
2032 const AVFrame *out = td->out; \
2033 const int direct = out == in; \
2034 const int step = lut1d->step; \
2035 const uint8_t r = lut1d->rgba_map[R]; \
2036 const uint8_t g = lut1d->rgba_map[G]; \
2037 const uint8_t b = lut1d->rgba_map[B]; \
2038 const uint8_t a = lut1d->rgba_map[A]; \
2039 const int slice_start = ff_slice_pos(in->height, jobnr, nb_jobs); \
2040 const int slice_end = ff_slice_pos(in->height, jobnr + 1, nb_jobs); \
2041 uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0]; \
2042 const uint8_t *srcrow = in ->data[0] + slice_start * in ->linesize[0]; \
2043 const float factor = (1 << nbits) - 1; \
2044 const float scale_r = (lut1d->scale.r / factor) * (lut1d->lutsize - 1); \
2045 const float scale_g = (lut1d->scale.g / factor) * (lut1d->lutsize - 1); \
2046 const float scale_b = (lut1d->scale.b / factor) * (lut1d->lutsize - 1); \
2047 \
2048 for (y = slice_start; y < slice_end; y++) { \
2049 uint##nbits##_t *dst = (uint##nbits##_t *)dstrow; \
2050 const uint##nbits##_t *src = (const uint##nbits##_t *)srcrow; \
2051 for (x = 0; x < in->width * step; x += step) { \
2052 float rr = src[x + r] * scale_r; \
2053 float gg = src[x + g] * scale_g; \
2054 float bb = src[x + b] * scale_b; \
2055 rr = interp_1d_##name(lut1d, 0, rr); \
2056 gg = interp_1d_##name(lut1d, 1, gg); \
2057 bb = interp_1d_##name(lut1d, 2, bb); \
2058 dst[x + r] = av_clip_uint##nbits(rr * factor); \
2059 dst[x + g] = av_clip_uint##nbits(gg * factor); \
2060 dst[x + b] = av_clip_uint##nbits(bb * factor); \
2061 if (!direct && step == 4) \
2062 dst[x + a] = src[x + a]; \
2063 } \
2064 dstrow += out->linesize[0]; \
2065 srcrow += in ->linesize[0]; \
2066 } \
2067 return 0; \
2068}
2069
2070DEFINE_INTERP_FUNC_1D(nearest, 8)
2071DEFINE_INTERP_FUNC_1D(linear, 8)
2072DEFINE_INTERP_FUNC_1D(cosine, 8)
2073DEFINE_INTERP_FUNC_1D(cubic, 8)
2074DEFINE_INTERP_FUNC_1D(spline, 8)
2075
2076DEFINE_INTERP_FUNC_1D(nearest, 16)
2077DEFINE_INTERP_FUNC_1D(linear, 16)
2078DEFINE_INTERP_FUNC_1D(cosine, 16)
2079DEFINE_INTERP_FUNC_1D(cubic, 16)
2080DEFINE_INTERP_FUNC_1D(spline, 16)
2081
2082static int config_input_1d(AVFilterLink *inlink)
2083{
2084 int depth, is16bit, isfloat, planar;
2085 LUT1DContext *lut1d = inlink->dst->priv;
2086 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
2087
2088 depth = desc->comp[0].depth;
2089 is16bit = desc->comp[0].depth > 8;
2090 planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;
2091 isfloat = desc->flags & AV_PIX_FMT_FLAG_FLOAT;
2092 ff_fill_rgba_map(lut1d->rgba_map, inlink->format);
2093 lut1d->step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
2094
2095#define SET_FUNC_1D(name) do { \
2096 if (planar && !isfloat) { \
2097 switch (depth) { \
2098 case 8: lut1d->interp = interp_1d_8_##name##_p8; break; \
2099 case 9: lut1d->interp = interp_1d_16_##name##_p9; break; \
2100 case 10: lut1d->interp = interp_1d_16_##name##_p10; break; \
2101 case 12: lut1d->interp = interp_1d_16_##name##_p12; break; \
2102 case 14: lut1d->interp = interp_1d_16_##name##_p14; break; \
2103 case 16: lut1d->interp = interp_1d_16_##name##_p16; break; \
2104 } \
2105 } else if (isfloat) { lut1d->interp = interp_1d_##name##_pf32; \
2106 } else if (is16bit) { lut1d->interp = interp_1d_16_##name; \
2107 } else { lut1d->interp = interp_1d_8_##name; } \
2108} while (0)
2109
2110 switch (lut1d->interpolation) {
2111 case INTERPOLATE_1D_NEAREST: SET_FUNC_1D(nearest); break;
2112 case INTERPOLATE_1D_LINEAR: SET_FUNC_1D(linear); break;
2113 case INTERPOLATE_1D_COSINE: SET_FUNC_1D(cosine); break;
2114 case INTERPOLATE_1D_CUBIC: SET_FUNC_1D(cubic); break;
2115 case INTERPOLATE_1D_SPLINE: SET_FUNC_1D(spline); break;
2116 default:
2117 av_assert0(0);
2118 }
2119
2120 return 0;
2121}
2122
2123static av_cold int lut1d_init(AVFilterContext *ctx)
2124{
2125 int ret;
2126 FILE *f;
2127 const char *ext;
2128 LUT1DContext *lut1d = ctx->priv;
2129
2130 lut1d->scale.r = lut1d->scale.g = lut1d->scale.b = 1.f;
2131
2132 if (!lut1d->file) {
2133 set_identity_matrix_1d(lut1d, 32);
2134 return 0;
2135 }
2136
2137 f = avpriv_fopen_utf8(lut1d->file, "r");
2138 if (!f) {
2139 ret = AVERROR(errno);
2140 av_log(ctx, AV_LOG_ERROR, "%s: %s\n", lut1d->file, av_err2str(ret));
2141 return ret;
2142 }
2143
2144 ext = strrchr(lut1d->file, '.');
2145 if (!ext) {
2146 av_log(ctx, AV_LOG_ERROR, "Unable to guess the format from the extension\n");
2147 ret = AVERROR_INVALIDDATA;
2148 goto end;
2149 }
2150 ext++;
2151
2152 if (!av_strcasecmp(ext, "cube") || !av_strcasecmp(ext, "1dlut")) {
2153 ret = parse_cube_1d(ctx, f);
2154 } else if (!av_strcasecmp(ext, "csp")) {
2155 ret = parse_cinespace_1d(ctx, f);
2156 } else {
2157 av_log(ctx, AV_LOG_ERROR, "Unrecognized '.%s' file type\n", ext);
2158 ret = AVERROR(EINVAL);
2159 }
2160
2161 if (!ret && !lut1d->lutsize) {
2162 av_log(ctx, AV_LOG_ERROR, "1D LUT is empty\n");
2163 ret = AVERROR_INVALIDDATA;
2164 }
2165
2166end:
2167 fclose(f);
2168 return ret;
2169}
2170
2171static AVFrame *apply_1d_lut(AVFilterLink *inlink, AVFrame *in)
2172{
2173 AVFilterContext *ctx = inlink->dst;
2174 LUT1DContext *lut1d = ctx->priv;
2175 AVFilterLink *outlink = inlink->dst->outputs[0];
2176 AVFrame *out;
2177 ThreadData td;
2178
2179 if (av_frame_is_writable(in)) {
2180 out = in;
2181 } else {
2182 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
2183 if (!out) {
2184 av_frame_free(&in);
2185 return NULL;
2186 }
2187 av_frame_copy_props(out, in);
2188 }
2189
2190 td.in = in;
2191 td.out = out;
2192 ff_filter_execute(ctx, lut1d->interp, &td, NULL,
2193 FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
2194
2195 if (out != in)
2196 av_frame_free(&in);
2197
2198 return out;
2199}
2200
2201static int filter_frame_1d(AVFilterLink *inlink, AVFrame *in)
2202{
2203 AVFilterLink *outlink = inlink->dst->outputs[0];
2204 AVFrame *out = apply_1d_lut(inlink, in);
2205 if (!out)
2206 return AVERROR(ENOMEM);
2207 return ff_filter_frame(outlink, out);
2208}
2209
2210static int lut1d_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
2211 char *res, int res_len, int flags)
2212{
2213 LUT1DContext *lut1d = ctx->priv;
2214 int ret;
2215
2216 ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
2217 if (ret < 0)
2218 return ret;
2219
2220 ret = lut1d_init(ctx);
2221 if (ret < 0) {
2222 set_identity_matrix_1d(lut1d, 32);
2223 return ret;
2224 }
2225 return config_input_1d(ctx->inputs[0]);
2226}
2227
2228static const AVFilterPad lut1d_inputs[] = {
2229 {
2230 .name = "default",
2231 .type = AVMEDIA_TYPE_VIDEO,
2232 .filter_frame = filter_frame_1d,
2233 .config_props = config_input_1d,
2234 },
2235};
2236
2237const FFFilter ff_vf_lut1d = {
2238 .p.name = "lut1d",
2239 .p.description = NULL_IF_CONFIG_SMALL("Adjust colors using a 1D LUT."),
2240 .p.priv_class = &lut1d_class,
2241 .p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
2242 AVFILTER_FLAG_SLICE_THREADS,
2243 .priv_size = sizeof(LUT1DContext),
2244 .init = lut1d_init,
2245 FILTER_INPUTS(lut1d_inputs),
2246 FILTER_OUTPUTS(ff_video_default_filterpad),
2247 FILTER_PIXFMTS_ARRAY(pix_fmts),
2248 .process_command = lut1d_process_command,
2249};
2250#endif
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition dsp.h:87
val
static double val(void *priv, double ch)
Definition aeval.c:77
config_input
static int config_input(AVFilterLink *inlink)
Definition af_acontrast.c:121
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition af_acrusher.c:307
interpolation
static int interpolation(DeclickChannel *c, const double *src, int ar_order, double *acoefficients, int *index, int nb_errors, double *auxiliary, double *interpolated)
Definition af_adeclick.c:395
TFLAGS
#define TFLAGS
Definition af_afade.c:66
float
float
Definition af_crystalizer.c:122
ff_vf_lut3d
const FFFilter ff_vf_lut3d
ff_vf_lut1d
const FFFilter ff_vf_lut1d
ff_vf_haldclut
const FFFilter ff_vf_haldclut
planar
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi - 0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi > >8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1<< 16)) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi > >24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi > >56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0f/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out->ch+ch,(const uint8_t **) in->ch+ch, off *(out-> planar
Definition audioconvert.c:56
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition avassert.h:42
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition avfilter.c:1068
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition avfilter.c:906
ff_filter_execute
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition avfilter.c:1696
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition avfilter.c:846
av_sscanf
int av_sscanf(const char *string, const char *format,...)
Definition avsscanf.c:962
flags
#define flags(name, subs,...)
Definition cbs_h264.c:74
i
#define i(width, name, range_min, range_max)
Definition cbs_h264.c:63
f
#define f(width, name)
Definition cbs_vp8.c:236
s
#define s(width, name)
Definition cbs_vp9.c:198
fs
#define fs(width, name, subs,...)
Definition cbs_vp9.c:200
FLAGS
#define FLAGS
Definition cmdutils.c:598
av_clipf
#define av_clipf
Definition common.h:145
NULL
#define NULL
Definition coverity.c:32
min
#define min(a, b)
Definition cuda_runtime.h:34
max
#define max(a, b)
Definition cuda_runtime.h:33
frame
static AVFrame * frame
Definition demux_decode.c:54
filter_frame
static int filter_frame(DBEDecodeContext *s, AVFrame *frame)
Definition dolby_e.c:1067
ff_fill_rgba_map
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition drawutils.c:80
drawutils.h
misc drawing utilities
init
int(* init)(AVBSFContext *ctx)
Definition dts2pts.c:608
apply_lut
static void apply_lut(const uint16_t *lut, uint16_t *dst, int dsize)
Definition exr.c:292
file_open.h
cubic
static av_unused double cubic(double x, const double *params)
Definition filters.c:423
cosine
static av_unused double cosine(double x, const double *params)
Definition filters.c:330
spline
static av_unused double spline(double x, const double *params)
Definition filters.c:454
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition framesync.c:137
ff_framesync_dualinput_get
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
Definition framesync.c:390
ff_framesync_activate
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition framesync.c:352
ff_framesync_init_dualinput
int ff_framesync_init_dualinput(FFFrameSync *fs, AVFilterContext *parent)
Initialize a frame sync structure for dualinput.
Definition framesync.c:372
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition framesync.c:301
FRAMESYNC_DEFINE_CLASS_EXT
#define FRAMESYNC_DEFINE_CLASS_EXT(name, context, field, options)
Definition framesync.h:348
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition opt.h:298
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition opt.h:258
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
Definition opt.h:275
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition avfilter.h:196
avfilter_action_func
int avfilter_action_func(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
A function pointer passed to the AVFilterGraph::execute callback to be executed multiple times,...
Definition avfilter.h:544
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition avfilter.h:166
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition avfilter.h:204
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition error.h:64
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition error.h:61
av_err2str
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition error.h:122
AVERROR
#define AVERROR(e)
Definition error.h:45
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition frame.c:535
av_frame_side_data_remove_by_props
void av_frame_side_data_remove_by_props(AVFrameSideData ***sd, int *nb_sd, int props)
Remove and free all side data instances that match any of the given side data properties.
Definition side_data.c:123
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition frame.c:64
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition frame.c:599
AV_SIDE_DATA_PROP_COLOR_DEPENDENT
@ AV_SIDE_DATA_PROP_COLOR_DEPENDENT
Side data depends on the video color space.
Definition frame.h:361
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition log.h:231
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition log.h:216
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition log.h:221
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition log.h:210
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition avutil.h:200
av_strcasecmp
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition avstring.c:208
av_isspace
static av_const int av_isspace(int c)
Locale-independent conversion of ASCII isspace.
Definition avstring.h:218
a
int a
Definition h264pred_template.c:416
r
#define r
Definition input.c:42
b
#define b
Definition input.c:43
linear
static int linear(InterplayACMContext *s, unsigned ind, unsigned col)
Definition interplayacm.c:135
scale
static void scale(int *out, const int *in, const int w, const int h, const int shift)
Definition intra.c:278
uninit
static av_cold void uninit(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:135
activate
static int activate(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:144
config_output
static int config_output(AVBitStreamFilterLink *outlink)
Definition lcevc_merge.c:111
mix
static int mix(int c0, int c1)
Definition 4xm.c:717
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition filters.h:264
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition filters.h:265
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition filters.h:244
AVFILTER_DEFINE_CLASS_EXT
#define AVFILTER_DEFINE_CLASS_EXT(name, desc, options)
Definition filters.h:470
AVFILTER_DEFINE_CLASS
#define AVFILTER_DEFINE_CLASS(fname)
Definition filters.h:478
INTERPOLATE_TRILINEAR
@ INTERPOLATE_TRILINEAR
Definition lut3d.h:32
INTERPOLATE_PYRAMID
@ INTERPOLATE_PYRAMID
Definition lut3d.h:34
INTERPOLATE_TETRAHEDRAL
@ INTERPOLATE_TETRAHEDRAL
Definition lut3d.h:33
INTERPOLATE_PRISM
@ INTERPOLATE_PRISM
Definition lut3d.h:35
INTERPOLATE_NEAREST
@ INTERPOLATE_NEAREST
Definition lut3d.h:31
ff_lut3d_init_x86
void ff_lut3d_init_x86(LUT3DContext *s, const AVPixFmtDescriptor *desc)
Definition vf_lut3d_init.c:59
PRELUT_SIZE
#define PRELUT_SIZE
Definition lut3d.h:46
av_cold
#define av_cold
Definition attributes.h:117
avpriv_fopen_utf8
FILE * avpriv_fopen_utf8(const char *path, const char *mode)
Open a file using a UTF-8 filename.
Definition file_open.c:160
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition internal.h:88
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition libkvazaar.c:296
cosf
#define cosf(x)
Definition libm.h:80
desc
const char * desc
Definition libsvtav1.c:83
COMMON_OPTIONS
#define COMMON_OPTIONS
Definition libvpxenc.c:1986
w
uint8_t w
Definition llvidencdsp.c:39
tetrahedral
static av_always_inline v3u16_t tetrahedral(const SwsLut3D *lut3d, int Rx, int Gx, int Bx, int Rf, int Gf, int Bf)
Definition lut3d.c:69
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
FFMAX
#define FFMAX(a, b)
Definition macros.h:47
M_PI
#define M_PI
Definition mathematics.h:67
mem.h
Memory handling functions.
c2
static const uint64_t c2
Definition murmur3.c:53
c1
static const uint64_t c1
Definition murmur3.c:52
data
const char data[16]
Definition mxf.c:149
Windows::Graphics::DirectX::Direct3D11::p
IDirect3DDxgiInterfaceAccess _COM_Outptr_ void ** p
Definition vsrc_gfxcapture_winrt.hpp:53
av_malloc
#define av_malloc(s)
Definition ops_static.c:52
opt.h
AVOptions.
lerp
static double lerp(double a, double b, double x)
Definition perlin.c:75
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition pixdesc.c:3500
av_get_padded_bits_per_pixel
int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel for the pixel format described by pixdesc, including any padding ...
Definition pixdesc.c:3425
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition pixdesc.c:3460
AV_PIX_FMT_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition pixdesc.h:158
AV_PIX_FMT_FLAG_PLANAR
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition pixdesc.h:132
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition pixfmt.h:569
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition pixfmt.h:584
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition pixfmt.h:571
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition pixfmt.h:563
AV_PIX_FMT_BGR48
#define AV_PIX_FMT_BGR48
Definition pixfmt.h:536
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition pixfmt.h:564
AV_PIX_FMT_RGBA64
#define AV_PIX_FMT_RGBA64
Definition pixfmt.h:535
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition pixfmt.h:565
AV_PIX_FMT_RGB48
#define AV_PIX_FMT_RGB48
Definition pixfmt.h:531
AVPixelFormat
AVPixelFormat
Pixel format.
Definition pixfmt.h:71
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition pixfmt.h:72
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition pixfmt.h:75
AV_PIX_FMT_BGR0
@ AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition pixfmt.h:265
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition pixfmt.h:99
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition pixfmt.h:102
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition pixfmt.h:101
AV_PIX_FMT_0BGR
@ AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition pixfmt.h:264
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition pixfmt.h:100
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition pixfmt.h:212
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition pixfmt.h:263
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition pixfmt.h:76
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition pixfmt.h:165
AV_PIX_FMT_0RGB
@ AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition pixfmt.h:262
AV_PIX_FMT_BGRA64
#define AV_PIX_FMT_BGRA64
Definition pixfmt.h:540
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition pixfmt.h:568
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition pixfmt.h:567
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition pixfmt.h:566
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition pixfmt.h:585
MAX_LEVEL
#define MAX_LEVEL
Definition rl.h:36
preinit
static av_cold int preinit(AVBitStreamFilterContext *ctx)
Definition source.c:137
AVFilterContext
An instance of a filter.
Definition avfilter.h:273
AVFilterContext::priv
void * priv
private data for use by the filter
Definition avfilter.h:288
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition avfilter.h:285
AVFilterPad
A filter pad used for either input or output.
Definition filters.h:40
AVFrame
This structure describes decoded (raw) audio or video data.
Definition frame.h:472
AVOption
AVOption.
Definition opt.h:428
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition pixdesc.h:69
FFFrameSync
Frame sync structure.
Definition framesync.h:168
LUT3DContext::file
char * file
Definition lut3d.h:63
LUT3DContext::lut
struct rgbvec * lut
Definition lut3d.h:58
LUT3DContext::interpolation
int interpolation
interp_mode
Definition lut3d.h:62
LUT3DContext::step
int step
Definition lut3d.h:65
LUT3DContext::lutsize
int lutsize
Definition lut3d.h:59
LUT3DContext::rgba_map
uint8_t rgba_map[4]
Definition lut3d.h:64
LUT3DContext::lutsize2
int lutsize2
Definition lut3d.h:60
LUT3DContext::interp
avfilter_action_func * interp
Definition lut3d.h:66
LUT3DContext::prelut
Lut3DPreLut prelut
Definition lut3d.h:67
LUT3DContext::scale
struct rgbvec scale
Definition lut3d.h:61
Lut3DPreLut::size
int size
Definition lut3d.h:49
Lut3DPreLut::min
float min[3]
Definition lut3d.h:50
Lut3DPreLut::scale
float scale[3]
Definition lut3d.h:52
Lut3DPreLut::lut
float * lut[3]
Definition lut3d.h:53
Lut3DPreLut::max
float max[3]
Definition lut3d.h:51
ThreadData
Used for passing data between threads.
Definition dsddec.c:71
ThreadData::out
AVFrame * out
Definition af_adeclick.c:532
rgbvec
Definition lut3d.h:39
rgbvec::r
float r
Definition lut3d.h:40
rgbvec::b
float b
Definition lut3d.h:40
rgbvec::g
float g
Definition lut3d.h:40
level
uint8_t level
Definition svq3.c:208
av_malloc_array
#define av_malloc_array(a, b)
Definition tableprint_vlc.h:32
av_freep
#define av_freep(p)
Definition tableprint_vlc.h:35
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
out
static FILE * out
Definition movenc.c:55
ctx
static AVFormatContext * ctx
Definition movenc.c:49
size
int size
Definition twinvq_data.h:10344
av_intfloat32
Definition intfloat.h:27
av_intfloat32::f
float f
Definition intfloat.h:29
av_intfloat32::i
uint32_t i
Definition intfloat.h:28
interp
interp
Definition vf_curves.c:62
g
const char * g
Definition vf_curves.c:128
master
const char * master
Definition vf_curves.c:130
sanitizef
static float sanitizef(float f)
Definition vf_lut3d.c:63
NEXT
#define NEXT(x)
Definition vf_lut3d.c:98
DEFINE_INTERP_FUNC_PLANAR
#define DEFINE_INTERP_FUNC_PLANAR(name, nbits, depth)
Definition vf_lut3d.c:321
nearest_sample_index
static int nearest_sample_index(float *data, float x, int low, int hi)
Definition vf_lut3d.c:837
skip_line
static int skip_line(const char *p)
Definition vf_lut3d.c:549
set_identity_matrix
static int set_identity_matrix(AVFilterContext *ctx, int size)
Definition vf_lut3d.c:1072
DEFINE_INTERP_FUNC
#define DEFINE_INTERP_FUNC(name, nbits)
Definition vf_lut3d.c:486
NEAR
#define NEAR(x)
Definition vf_lut3d.c:96
NEXT_LINE_OR_GOTO
#define NEXT_LINE_OR_GOTO(loop_cond, label)
Definition vf_lut3d.c:597
parse_m3d
static int parse_m3d(AVFilterContext *ctx, FILE *f)
Definition vf_lut3d.c:768
SET_COLOR
#define SET_COLOR(id)
lerp
static struct rgbvec lerp(const struct rgbvec *v0, const struct rgbvec *v1, float f)
Definition vf_lut3d.c:88
MAX_LINE_SIZE
#define MAX_LINE_SIZE
Definition vf_lut3d.c:547
PREV
#define PREV(x)
Definition vf_lut3d.c:97
NEXT_FLOAT_OR_GOTO
#define NEXT_FLOAT_OR_GOTO(value, label)
Definition vf_lut3d.c:865
interp_tetrahedral
static struct rgbvec interp_tetrahedral(const LUT3DContext *lut3d, const struct rgbvec *s)
Tetrahedral interpolation.
Definition vf_lut3d.c:238
NEXT_LINE
#define NEXT_LINE(loop_cond)
Definition vf_lut3d.c:590
interp_trilinear
static struct rgbvec interp_trilinear(const LUT3DContext *lut3d, const struct rgbvec *s)
Interpolate using the 8 vertices of a cube.
Definition vf_lut3d.c:113
lerpf
static float lerpf(float v0, float v1, float f)
Definition vf_lut3d.c:83
interp_prism
static struct rgbvec interp_prism(const LUT3DContext *lut3d, const struct rgbvec *s)
Definition vf_lut3d.c:189
apply_prelut
static struct rgbvec apply_prelut(const Lut3DPreLut *prelut, const struct rgbvec *s)
Definition vf_lut3d.c:307
fget_next_word
static char * fget_next_word(char *dst, int max, FILE *f)
Definition vf_lut3d.c:556
parse_3dl
static int parse_3dl(AVFilterContext *ctx, FILE *f)
Definition vf_lut3d.c:733
allocate_3dlut
static int allocate_3dlut(AVFilterContext *ctx, int lutsize, int prelut)
Definition vf_lut3d.c:605
interp_pyramid
static struct rgbvec interp_pyramid(const LUT3DContext *lut3d, const struct rgbvec *s)
Definition vf_lut3d.c:139
interp_nearest
static struct rgbvec interp_nearest(const LUT3DContext *lut3d, const struct rgbvec *s)
Get the nearest defined point.
Definition vf_lut3d.c:103
SIGN_MASK
#define SIGN_MASK
Definition vf_lut3d.c:61
OFFSET
#define OFFSET(x)
Definition vf_lut3d.c:47
prelut_interp_1d_linear
static float prelut_interp_1d_linear(const Lut3DPreLut *prelut, int idx, const float s)
Definition vf_lut3d.c:293
DEFINE_INTERP_FUNC_PLANAR_FLOAT
#define DEFINE_INTERP_FUNC_PLANAR_FLOAT(name, depth)
Definition vf_lut3d.c:419
parse_dat
static int parse_dat(AVFilterContext *ctx, FILE *f)
Definition vf_lut3d.c:640
parse_cinespace
static int parse_cinespace(AVFilterContext *ctx, FILE *f)
Definition vf_lut3d.c:875
MANTISSA_MASK
#define MANTISSA_MASK
Definition vf_lut3d.c:60
EXPONENT_MASK
#define EXPONENT_MASK
Definition vf_lut3d.c:59
parse_cube
static int parse_cube(AVFilterContext *ctx, FILE *f)
Definition vf_lut3d.c:675
a0
static double a0(void *priv, double x, double y)
Definition vf_xfade.c:2028
a3
static double a3(void *priv, double x, double y)
Definition vf_xfade.c:2031
a2
static double a2(void *priv, double x, double y)
Definition vf_xfade.c:2030
a1
static double a1(void *priv, double x, double y)
Definition vf_xfade.c:2029
ff_video_default_filterpad
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
Definition video.c:37
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition video.c:89
h
h
Definition vp9dsp_template.c:2070
c
static double c[64]
Definition vsrc_mptestsrc.c:89
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