| 1 | /* |
| 2 | * Copyright (c) 2013 Clément Bœsch |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 6 | * FFmpeg is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * FFmpeg is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with FFmpeg; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * @file |
| 23 | * 3D Lookup table filter |
| 24 | */ |
| 25 | |
| 26 | #include "libavutil/opt.h" |
| 27 | #include "libavutil/file.h" |
| 28 | #include "libavutil/intreadwrite.h" |
| 29 | #include "libavutil/avassert.h" |
| 30 | #include "libavutil/pixdesc.h" |
| 31 | #include "libavutil/avstring.h" |
| 32 | #include "avfilter.h" |
| 33 | #include "drawutils.h" |
| 34 | #include "dualinput.h" |
| 35 | #include "formats.h" |
| 36 | #include "internal.h" |
| 37 | #include "video.h" |
| 38 | |
| 39 | #define R 0 |
| 40 | #define G 1 |
| 41 | #define B 2 |
| 42 | #define A 3 |
| 43 | |
| 44 | enum interp_mode { |
| 45 | INTERPOLATE_NEAREST, |
| 46 | INTERPOLATE_TRILINEAR, |
| 47 | INTERPOLATE_TETRAHEDRAL, |
| 48 | NB_INTERP_MODE |
| 49 | }; |
| 50 | |
| 51 | struct rgbvec { |
| 52 | float r, g, b; |
| 53 | }; |
| 54 | |
| 55 | /* 3D LUT don't often go up to level 32, but it is common to have a Hald CLUT |
| 56 | * of 512x512 (64x64x64) */ |
| 57 | #define MAX_LEVEL 64 |
| 58 | |
| 59 | typedef struct LUT3DContext { |
| 60 | const AVClass *class; |
| 61 | enum interp_mode interpolation; |
| 62 | char *file; |
| 63 | uint8_t rgba_map[4]; |
| 64 | int step; |
| 65 | avfilter_action_func *interp; |
| 66 | struct rgbvec lut[MAX_LEVEL][MAX_LEVEL][MAX_LEVEL]; |
| 67 | int lutsize; |
| 68 | #if CONFIG_HALDCLUT_FILTER |
| 69 | uint8_t clut_rgba_map[4]; |
| 70 | int clut_step; |
| 71 | int clut_is16bit; |
| 72 | int clut_width; |
| 73 | FFDualInputContext dinput; |
| 74 | #endif |
| 75 | } LUT3DContext; |
| 76 | |
| 77 | typedef struct ThreadData { |
| 78 | AVFrame *in, *out; |
| 79 | } ThreadData; |
| 80 | |
| 81 | #define OFFSET(x) offsetof(LUT3DContext, x) |
| 82 | #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| 83 | #define COMMON_OPTIONS \ |
| 84 | { "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_TETRAHEDRAL}, 0, NB_INTERP_MODE-1, FLAGS, "interp_mode" }, \ |
| 85 | { "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_NEAREST}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \ |
| 86 | { "trilinear", "interpolate values using the 8 points defining a cube", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TRILINEAR}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \ |
| 87 | { "tetrahedral", "interpolate values using a tetrahedron", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TETRAHEDRAL}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \ |
| 88 | { NULL } |
| 89 | |
| 90 | static inline float lerpf(float v0, float v1, float f) |
| 91 | { |
| 92 | return v0 + (v1 - v0) * f; |
| 93 | } |
| 94 | |
| 95 | static inline struct rgbvec lerp(const struct rgbvec *v0, const struct rgbvec *v1, float f) |
| 96 | { |
| 97 | struct rgbvec v = { |
| 98 | lerpf(v0->r, v1->r, f), lerpf(v0->g, v1->g, f), lerpf(v0->b, v1->b, f) |
| 99 | }; |
| 100 | return v; |
| 101 | } |
| 102 | |
| 103 | #define NEAR(x) ((int)((x) + .5)) |
| 104 | #define PREV(x) ((int)(x)) |
| 105 | #define NEXT(x) (FFMIN((int)(x) + 1, lut3d->lutsize - 1)) |
| 106 | |
| 107 | /** |
| 108 | * Get the nearest defined point |
| 109 | */ |
| 110 | static inline struct rgbvec interp_nearest(const LUT3DContext *lut3d, |
| 111 | const struct rgbvec *s) |
| 112 | { |
| 113 | return lut3d->lut[NEAR(s->r)][NEAR(s->g)][NEAR(s->b)]; |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Interpolate using the 8 vertices of a cube |
| 118 | * @see https://en.wikipedia.org/wiki/Trilinear_interpolation |
| 119 | */ |
| 120 | static inline struct rgbvec interp_trilinear(const LUT3DContext *lut3d, |
| 121 | const struct rgbvec *s) |
| 122 | { |
| 123 | const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)}; |
| 124 | const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)}; |
| 125 | const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]}; |
| 126 | const struct rgbvec c000 = lut3d->lut[prev[0]][prev[1]][prev[2]]; |
| 127 | const struct rgbvec c001 = lut3d->lut[prev[0]][prev[1]][next[2]]; |
| 128 | const struct rgbvec c010 = lut3d->lut[prev[0]][next[1]][prev[2]]; |
| 129 | const struct rgbvec c011 = lut3d->lut[prev[0]][next[1]][next[2]]; |
| 130 | const struct rgbvec c100 = lut3d->lut[next[0]][prev[1]][prev[2]]; |
| 131 | const struct rgbvec c101 = lut3d->lut[next[0]][prev[1]][next[2]]; |
| 132 | const struct rgbvec c110 = lut3d->lut[next[0]][next[1]][prev[2]]; |
| 133 | const struct rgbvec c111 = lut3d->lut[next[0]][next[1]][next[2]]; |
| 134 | const struct rgbvec c00 = lerp(&c000, &c100, d.r); |
| 135 | const struct rgbvec c10 = lerp(&c010, &c110, d.r); |
| 136 | const struct rgbvec c01 = lerp(&c001, &c101, d.r); |
| 137 | const struct rgbvec c11 = lerp(&c011, &c111, d.r); |
| 138 | const struct rgbvec c0 = lerp(&c00, &c10, d.g); |
| 139 | const struct rgbvec c1 = lerp(&c01, &c11, d.g); |
| 140 | const struct rgbvec c = lerp(&c0, &c1, d.b); |
| 141 | return c; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Tetrahedral interpolation. Based on code found in Truelight Software Library paper. |
| 146 | * @see http://www.filmlight.ltd.uk/pdf/whitepapers/FL-TL-TN-0057-SoftwareLib.pdf |
| 147 | */ |
| 148 | static inline struct rgbvec interp_tetrahedral(const LUT3DContext *lut3d, |
| 149 | const struct rgbvec *s) |
| 150 | { |
| 151 | const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)}; |
| 152 | const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)}; |
| 153 | const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]}; |
| 154 | const struct rgbvec c000 = lut3d->lut[prev[0]][prev[1]][prev[2]]; |
| 155 | const struct rgbvec c111 = lut3d->lut[next[0]][next[1]][next[2]]; |
| 156 | struct rgbvec c; |
| 157 | if (d.r > d.g) { |
| 158 | if (d.g > d.b) { |
| 159 | const struct rgbvec c100 = lut3d->lut[next[0]][prev[1]][prev[2]]; |
| 160 | const struct rgbvec c110 = lut3d->lut[next[0]][next[1]][prev[2]]; |
| 161 | c.r = (1-d.r) * c000.r + (d.r-d.g) * c100.r + (d.g-d.b) * c110.r + (d.b) * c111.r; |
| 162 | c.g = (1-d.r) * c000.g + (d.r-d.g) * c100.g + (d.g-d.b) * c110.g + (d.b) * c111.g; |
| 163 | c.b = (1-d.r) * c000.b + (d.r-d.g) * c100.b + (d.g-d.b) * c110.b + (d.b) * c111.b; |
| 164 | } else if (d.r > d.b) { |
| 165 | const struct rgbvec c100 = lut3d->lut[next[0]][prev[1]][prev[2]]; |
| 166 | const struct rgbvec c101 = lut3d->lut[next[0]][prev[1]][next[2]]; |
| 167 | c.r = (1-d.r) * c000.r + (d.r-d.b) * c100.r + (d.b-d.g) * c101.r + (d.g) * c111.r; |
| 168 | c.g = (1-d.r) * c000.g + (d.r-d.b) * c100.g + (d.b-d.g) * c101.g + (d.g) * c111.g; |
| 169 | c.b = (1-d.r) * c000.b + (d.r-d.b) * c100.b + (d.b-d.g) * c101.b + (d.g) * c111.b; |
| 170 | } else { |
| 171 | const struct rgbvec c001 = lut3d->lut[prev[0]][prev[1]][next[2]]; |
| 172 | const struct rgbvec c101 = lut3d->lut[next[0]][prev[1]][next[2]]; |
| 173 | c.r = (1-d.b) * c000.r + (d.b-d.r) * c001.r + (d.r-d.g) * c101.r + (d.g) * c111.r; |
| 174 | c.g = (1-d.b) * c000.g + (d.b-d.r) * c001.g + (d.r-d.g) * c101.g + (d.g) * c111.g; |
| 175 | c.b = (1-d.b) * c000.b + (d.b-d.r) * c001.b + (d.r-d.g) * c101.b + (d.g) * c111.b; |
| 176 | } |
| 177 | } else { |
| 178 | if (d.b > d.g) { |
| 179 | const struct rgbvec c001 = lut3d->lut[prev[0]][prev[1]][next[2]]; |
| 180 | const struct rgbvec c011 = lut3d->lut[prev[0]][next[1]][next[2]]; |
| 181 | c.r = (1-d.b) * c000.r + (d.b-d.g) * c001.r + (d.g-d.r) * c011.r + (d.r) * c111.r; |
| 182 | c.g = (1-d.b) * c000.g + (d.b-d.g) * c001.g + (d.g-d.r) * c011.g + (d.r) * c111.g; |
| 183 | c.b = (1-d.b) * c000.b + (d.b-d.g) * c001.b + (d.g-d.r) * c011.b + (d.r) * c111.b; |
| 184 | } else if (d.b > d.r) { |
| 185 | const struct rgbvec c010 = lut3d->lut[prev[0]][next[1]][prev[2]]; |
| 186 | const struct rgbvec c011 = lut3d->lut[prev[0]][next[1]][next[2]]; |
| 187 | c.r = (1-d.g) * c000.r + (d.g-d.b) * c010.r + (d.b-d.r) * c011.r + (d.r) * c111.r; |
| 188 | c.g = (1-d.g) * c000.g + (d.g-d.b) * c010.g + (d.b-d.r) * c011.g + (d.r) * c111.g; |
| 189 | c.b = (1-d.g) * c000.b + (d.g-d.b) * c010.b + (d.b-d.r) * c011.b + (d.r) * c111.b; |
| 190 | } else { |
| 191 | const struct rgbvec c010 = lut3d->lut[prev[0]][next[1]][prev[2]]; |
| 192 | const struct rgbvec c110 = lut3d->lut[next[0]][next[1]][prev[2]]; |
| 193 | c.r = (1-d.g) * c000.r + (d.g-d.r) * c010.r + (d.r-d.b) * c110.r + (d.b) * c111.r; |
| 194 | c.g = (1-d.g) * c000.g + (d.g-d.r) * c010.g + (d.r-d.b) * c110.g + (d.b) * c111.g; |
| 195 | c.b = (1-d.g) * c000.b + (d.g-d.r) * c010.b + (d.r-d.b) * c110.b + (d.b) * c111.b; |
| 196 | } |
| 197 | } |
| 198 | return c; |
| 199 | } |
| 200 | |
| 201 | #define DEFINE_INTERP_FUNC(name, nbits) \ |
| 202 | static int interp_##nbits##_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
| 203 | { \ |
| 204 | int x, y; \ |
| 205 | const LUT3DContext *lut3d = ctx->priv; \ |
| 206 | const ThreadData *td = arg; \ |
| 207 | const AVFrame *in = td->in; \ |
| 208 | const AVFrame *out = td->out; \ |
| 209 | const int direct = out == in; \ |
| 210 | const int step = lut3d->step; \ |
| 211 | const uint8_t r = lut3d->rgba_map[R]; \ |
| 212 | const uint8_t g = lut3d->rgba_map[G]; \ |
| 213 | const uint8_t b = lut3d->rgba_map[B]; \ |
| 214 | const uint8_t a = lut3d->rgba_map[A]; \ |
| 215 | const int slice_start = (in->height * jobnr ) / nb_jobs; \ |
| 216 | const int slice_end = (in->height * (jobnr+1)) / nb_jobs; \ |
| 217 | uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0]; \ |
| 218 | const uint8_t *srcrow = in ->data[0] + slice_start * in ->linesize[0]; \ |
| 219 | const float scale = (1. / ((1<<nbits) - 1)) * (lut3d->lutsize - 1); \ |
| 220 | \ |
| 221 | for (y = slice_start; y < slice_end; y++) { \ |
| 222 | uint##nbits##_t *dst = (uint##nbits##_t *)dstrow; \ |
| 223 | const uint##nbits##_t *src = (const uint##nbits##_t *)srcrow; \ |
| 224 | for (x = 0; x < in->width * step; x += step) { \ |
| 225 | const struct rgbvec scaled_rgb = {src[x + r] * scale, \ |
| 226 | src[x + g] * scale, \ |
| 227 | src[x + b] * scale}; \ |
| 228 | struct rgbvec vec = interp_##name(lut3d, &scaled_rgb); \ |
| 229 | dst[x + r] = av_clip_uint##nbits(vec.r * (float)((1<<nbits) - 1)); \ |
| 230 | dst[x + g] = av_clip_uint##nbits(vec.g * (float)((1<<nbits) - 1)); \ |
| 231 | dst[x + b] = av_clip_uint##nbits(vec.b * (float)((1<<nbits) - 1)); \ |
| 232 | if (!direct && step == 4) \ |
| 233 | dst[x + a] = src[x + a]; \ |
| 234 | } \ |
| 235 | dstrow += out->linesize[0]; \ |
| 236 | srcrow += in ->linesize[0]; \ |
| 237 | } \ |
| 238 | return 0; \ |
| 239 | } |
| 240 | |
| 241 | DEFINE_INTERP_FUNC(nearest, 8) |
| 242 | DEFINE_INTERP_FUNC(trilinear, 8) |
| 243 | DEFINE_INTERP_FUNC(tetrahedral, 8) |
| 244 | |
| 245 | DEFINE_INTERP_FUNC(nearest, 16) |
| 246 | DEFINE_INTERP_FUNC(trilinear, 16) |
| 247 | DEFINE_INTERP_FUNC(tetrahedral, 16) |
| 248 | |
| 249 | #define MAX_LINE_SIZE 512 |
| 250 | |
| 251 | static int skip_line(const char *p) |
| 252 | { |
| 253 | while (*p && av_isspace(*p)) |
| 254 | p++; |
| 255 | return !*p || *p == '#'; |
| 256 | } |
| 257 | |
| 258 | #define NEXT_LINE(loop_cond) do { \ |
| 259 | if (!fgets(line, sizeof(line), f)) { \ |
| 260 | av_log(ctx, AV_LOG_ERROR, "Unexpected EOF\n"); \ |
| 261 | return AVERROR_INVALIDDATA; \ |
| 262 | } \ |
| 263 | } while (loop_cond) |
| 264 | |
| 265 | /* Basically r g and b float values on each line, with a facultative 3DLUTSIZE |
| 266 | * directive; seems to be generated by Davinci */ |
| 267 | static int parse_dat(AVFilterContext *ctx, FILE *f) |
| 268 | { |
| 269 | LUT3DContext *lut3d = ctx->priv; |
| 270 | char line[MAX_LINE_SIZE]; |
| 271 | int i, j, k, size; |
| 272 | |
| 273 | lut3d->lutsize = size = 33; |
| 274 | |
| 275 | NEXT_LINE(skip_line(line)); |
| 276 | if (!strncmp(line, "3DLUTSIZE ", 10)) { |
| 277 | size = strtol(line + 10, NULL, 0); |
| 278 | if (size < 2 || size > MAX_LEVEL) { |
| 279 | av_log(ctx, AV_LOG_ERROR, "Too large or invalid 3D LUT size\n"); |
| 280 | return AVERROR(EINVAL); |
| 281 | } |
| 282 | lut3d->lutsize = size; |
| 283 | NEXT_LINE(skip_line(line)); |
| 284 | } |
| 285 | for (k = 0; k < size; k++) { |
| 286 | for (j = 0; j < size; j++) { |
| 287 | for (i = 0; i < size; i++) { |
| 288 | struct rgbvec *vec = &lut3d->lut[k][j][i]; |
| 289 | if (k != 0 || j != 0 || i != 0) |
| 290 | NEXT_LINE(skip_line(line)); |
| 291 | if (sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3) |
| 292 | return AVERROR_INVALIDDATA; |
| 293 | } |
| 294 | } |
| 295 | } |
| 296 | return 0; |
| 297 | } |
| 298 | |
| 299 | /* Iridas format */ |
| 300 | static int parse_cube(AVFilterContext *ctx, FILE *f) |
| 301 | { |
| 302 | LUT3DContext *lut3d = ctx->priv; |
| 303 | char line[MAX_LINE_SIZE]; |
| 304 | float min[3] = {0.0, 0.0, 0.0}; |
| 305 | float max[3] = {1.0, 1.0, 1.0}; |
| 306 | |
| 307 | while (fgets(line, sizeof(line), f)) { |
| 308 | if (!strncmp(line, "LUT_3D_SIZE ", 12)) { |
| 309 | int i, j, k; |
| 310 | const int size = strtol(line + 12, NULL, 0); |
| 311 | |
| 312 | if (size < 2 || size > MAX_LEVEL) { |
| 313 | av_log(ctx, AV_LOG_ERROR, "Too large or invalid 3D LUT size\n"); |
| 314 | return AVERROR(EINVAL); |
| 315 | } |
| 316 | lut3d->lutsize = size; |
| 317 | for (k = 0; k < size; k++) { |
| 318 | for (j = 0; j < size; j++) { |
| 319 | for (i = 0; i < size; i++) { |
| 320 | struct rgbvec *vec = &lut3d->lut[i][j][k]; |
| 321 | |
| 322 | do { |
| 323 | NEXT_LINE(0); |
| 324 | if (!strncmp(line, "DOMAIN_", 7)) { |
| 325 | float *vals = NULL; |
| 326 | if (!strncmp(line + 7, "MIN ", 4)) vals = min; |
| 327 | else if (!strncmp(line + 7, "MAX ", 4)) vals = max; |
| 328 | if (!vals) |
| 329 | return AVERROR_INVALIDDATA; |
| 330 | sscanf(line + 11, "%f %f %f", vals, vals + 1, vals + 2); |
| 331 | av_log(ctx, AV_LOG_DEBUG, "min: %f %f %f | max: %f %f %f\n", |
| 332 | min[0], min[1], min[2], max[0], max[1], max[2]); |
| 333 | continue; |
| 334 | } |
| 335 | } while (skip_line(line)); |
| 336 | if (sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3) |
| 337 | return AVERROR_INVALIDDATA; |
| 338 | vec->r *= max[0] - min[0]; |
| 339 | vec->g *= max[1] - min[1]; |
| 340 | vec->b *= max[2] - min[2]; |
| 341 | } |
| 342 | } |
| 343 | } |
| 344 | break; |
| 345 | } |
| 346 | } |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | /* Assume 17x17x17 LUT with a 16-bit depth |
| 351 | * FIXME: it seems there are various 3dl formats */ |
| 352 | static int parse_3dl(AVFilterContext *ctx, FILE *f) |
| 353 | { |
| 354 | char line[MAX_LINE_SIZE]; |
| 355 | LUT3DContext *lut3d = ctx->priv; |
| 356 | int i, j, k; |
| 357 | const int size = 17; |
| 358 | const float scale = 16*16*16; |
| 359 | |
| 360 | lut3d->lutsize = size; |
| 361 | NEXT_LINE(skip_line(line)); |
| 362 | for (k = 0; k < size; k++) { |
| 363 | for (j = 0; j < size; j++) { |
| 364 | for (i = 0; i < size; i++) { |
| 365 | int r, g, b; |
| 366 | struct rgbvec *vec = &lut3d->lut[k][j][i]; |
| 367 | |
| 368 | NEXT_LINE(skip_line(line)); |
| 369 | if (sscanf(line, "%d %d %d", &r, &g, &b) != 3) |
| 370 | return AVERROR_INVALIDDATA; |
| 371 | vec->r = r / scale; |
| 372 | vec->g = g / scale; |
| 373 | vec->b = b / scale; |
| 374 | } |
| 375 | } |
| 376 | } |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | /* Pandora format */ |
| 381 | static int parse_m3d(AVFilterContext *ctx, FILE *f) |
| 382 | { |
| 383 | LUT3DContext *lut3d = ctx->priv; |
| 384 | float scale; |
| 385 | int i, j, k, size, in = -1, out = -1; |
| 386 | char line[MAX_LINE_SIZE]; |
| 387 | uint8_t rgb_map[3] = {0, 1, 2}; |
| 388 | |
| 389 | while (fgets(line, sizeof(line), f)) { |
| 390 | if (!strncmp(line, "in", 2)) in = strtol(line + 2, NULL, 0); |
| 391 | else if (!strncmp(line, "out", 3)) out = strtol(line + 3, NULL, 0); |
| 392 | else if (!strncmp(line, "values", 6)) { |
| 393 | const char *p = line + 6; |
| 394 | #define SET_COLOR(id) do { \ |
| 395 | while (av_isspace(*p)) \ |
| 396 | p++; \ |
| 397 | switch (*p) { \ |
| 398 | case 'r': rgb_map[id] = 0; break; \ |
| 399 | case 'g': rgb_map[id] = 1; break; \ |
| 400 | case 'b': rgb_map[id] = 2; break; \ |
| 401 | } \ |
| 402 | while (*p && !av_isspace(*p)) \ |
| 403 | p++; \ |
| 404 | } while (0) |
| 405 | SET_COLOR(0); |
| 406 | SET_COLOR(1); |
| 407 | SET_COLOR(2); |
| 408 | break; |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | if (in == -1 || out == -1) { |
| 413 | av_log(ctx, AV_LOG_ERROR, "in and out must be defined\n"); |
| 414 | return AVERROR_INVALIDDATA; |
| 415 | } |
| 416 | if (in < 2 || out < 2 || |
| 417 | in > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL || |
| 418 | out > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL) { |
| 419 | av_log(ctx, AV_LOG_ERROR, "invalid in (%d) or out (%d)\n", in, out); |
| 420 | return AVERROR_INVALIDDATA; |
| 421 | } |
| 422 | for (size = 1; size*size*size < in; size++); |
| 423 | lut3d->lutsize = size; |
| 424 | scale = 1. / (out - 1); |
| 425 | |
| 426 | for (k = 0; k < size; k++) { |
| 427 | for (j = 0; j < size; j++) { |
| 428 | for (i = 0; i < size; i++) { |
| 429 | struct rgbvec *vec = &lut3d->lut[k][j][i]; |
| 430 | float val[3]; |
| 431 | |
| 432 | NEXT_LINE(0); |
| 433 | if (sscanf(line, "%f %f %f", val, val + 1, val + 2) != 3) |
| 434 | return AVERROR_INVALIDDATA; |
| 435 | vec->r = val[rgb_map[0]] * scale; |
| 436 | vec->g = val[rgb_map[1]] * scale; |
| 437 | vec->b = val[rgb_map[2]] * scale; |
| 438 | } |
| 439 | } |
| 440 | } |
| 441 | return 0; |
| 442 | } |
| 443 | |
| 444 | static void set_identity_matrix(LUT3DContext *lut3d, int size) |
| 445 | { |
| 446 | int i, j, k; |
| 447 | const float c = 1. / (size - 1); |
| 448 | |
| 449 | lut3d->lutsize = size; |
| 450 | for (k = 0; k < size; k++) { |
| 451 | for (j = 0; j < size; j++) { |
| 452 | for (i = 0; i < size; i++) { |
| 453 | struct rgbvec *vec = &lut3d->lut[k][j][i]; |
| 454 | vec->r = k * c; |
| 455 | vec->g = j * c; |
| 456 | vec->b = i * c; |
| 457 | } |
| 458 | } |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | static int query_formats(AVFilterContext *ctx) |
| 463 | { |
| 464 | static const enum AVPixelFormat pix_fmts[] = { |
| 465 | AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, |
| 466 | AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, |
| 467 | AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, |
| 468 | AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR, |
| 469 | AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0, |
| 470 | AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48, |
| 471 | AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64, |
| 472 | AV_PIX_FMT_NONE |
| 473 | }; |
| 474 | ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); |
| 475 | return 0; |
| 476 | } |
| 477 | |
| 478 | static int config_input(AVFilterLink *inlink) |
| 479 | { |
| 480 | int is16bit = 0; |
| 481 | LUT3DContext *lut3d = inlink->dst->priv; |
| 482 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| 483 | |
| 484 | switch (inlink->format) { |
| 485 | case AV_PIX_FMT_RGB48: |
| 486 | case AV_PIX_FMT_BGR48: |
| 487 | case AV_PIX_FMT_RGBA64: |
| 488 | case AV_PIX_FMT_BGRA64: |
| 489 | is16bit = 1; |
| 490 | } |
| 491 | |
| 492 | ff_fill_rgba_map(lut3d->rgba_map, inlink->format); |
| 493 | lut3d->step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit); |
| 494 | |
| 495 | #define SET_FUNC(name) do { \ |
| 496 | if (is16bit) lut3d->interp = interp_16_##name; \ |
| 497 | else lut3d->interp = interp_8_##name; \ |
| 498 | } while (0) |
| 499 | |
| 500 | switch (lut3d->interpolation) { |
| 501 | case INTERPOLATE_NEAREST: SET_FUNC(nearest); break; |
| 502 | case INTERPOLATE_TRILINEAR: SET_FUNC(trilinear); break; |
| 503 | case INTERPOLATE_TETRAHEDRAL: SET_FUNC(tetrahedral); break; |
| 504 | default: |
| 505 | av_assert0(0); |
| 506 | } |
| 507 | |
| 508 | return 0; |
| 509 | } |
| 510 | |
| 511 | static AVFrame *apply_lut(AVFilterLink *inlink, AVFrame *in) |
| 512 | { |
| 513 | AVFilterContext *ctx = inlink->dst; |
| 514 | LUT3DContext *lut3d = ctx->priv; |
| 515 | AVFilterLink *outlink = inlink->dst->outputs[0]; |
| 516 | AVFrame *out; |
| 517 | ThreadData td; |
| 518 | |
| 519 | if (av_frame_is_writable(in)) { |
| 520 | out = in; |
| 521 | } else { |
| 522 | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| 523 | if (!out) { |
| 524 | av_frame_free(&in); |
| 525 | return NULL; |
| 526 | } |
| 527 | av_frame_copy_props(out, in); |
| 528 | } |
| 529 | |
| 530 | td.in = in; |
| 531 | td.out = out; |
| 532 | ctx->internal->execute(ctx, lut3d->interp, &td, NULL, FFMIN(outlink->h, ctx->graph->nb_threads)); |
| 533 | |
| 534 | if (out != in) |
| 535 | av_frame_free(&in); |
| 536 | |
| 537 | return out; |
| 538 | } |
| 539 | |
| 540 | static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| 541 | { |
| 542 | AVFilterLink *outlink = inlink->dst->outputs[0]; |
| 543 | AVFrame *out = apply_lut(inlink, in); |
| 544 | if (!out) |
| 545 | return AVERROR(ENOMEM); |
| 546 | return ff_filter_frame(outlink, out); |
| 547 | } |
| 548 | |
| 549 | #if CONFIG_LUT3D_FILTER |
| 550 | static const AVOption lut3d_options[] = { |
| 551 | { "file", "set 3D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS }, |
| 552 | COMMON_OPTIONS |
| 553 | }; |
| 554 | |
| 555 | AVFILTER_DEFINE_CLASS(lut3d); |
| 556 | |
| 557 | static av_cold int lut3d_init(AVFilterContext *ctx) |
| 558 | { |
| 559 | int ret; |
| 560 | FILE *f; |
| 561 | const char *ext; |
| 562 | LUT3DContext *lut3d = ctx->priv; |
| 563 | |
| 564 | if (!lut3d->file) { |
| 565 | set_identity_matrix(lut3d, 32); |
| 566 | return 0; |
| 567 | } |
| 568 | |
| 569 | f = fopen(lut3d->file, "r"); |
| 570 | if (!f) { |
| 571 | ret = AVERROR(errno); |
| 572 | av_log(ctx, AV_LOG_ERROR, "%s: %s\n", lut3d->file, av_err2str(ret)); |
| 573 | return ret; |
| 574 | } |
| 575 | |
| 576 | ext = strrchr(lut3d->file, '.'); |
| 577 | if (!ext) { |
| 578 | av_log(ctx, AV_LOG_ERROR, "Unable to guess the format from the extension\n"); |
| 579 | ret = AVERROR_INVALIDDATA; |
| 580 | goto end; |
| 581 | } |
| 582 | ext++; |
| 583 | |
| 584 | if (!av_strcasecmp(ext, "dat")) { |
| 585 | ret = parse_dat(ctx, f); |
| 586 | } else if (!av_strcasecmp(ext, "3dl")) { |
| 587 | ret = parse_3dl(ctx, f); |
| 588 | } else if (!av_strcasecmp(ext, "cube")) { |
| 589 | ret = parse_cube(ctx, f); |
| 590 | } else if (!av_strcasecmp(ext, "m3d")) { |
| 591 | ret = parse_m3d(ctx, f); |
| 592 | } else { |
| 593 | av_log(ctx, AV_LOG_ERROR, "Unrecognized '.%s' file type\n", ext); |
| 594 | ret = AVERROR(EINVAL); |
| 595 | } |
| 596 | |
| 597 | if (!ret && !lut3d->lutsize) { |
| 598 | av_log(ctx, AV_LOG_ERROR, "3D LUT is empty\n"); |
| 599 | ret = AVERROR_INVALIDDATA; |
| 600 | } |
| 601 | |
| 602 | end: |
| 603 | fclose(f); |
| 604 | return ret; |
| 605 | } |
| 606 | |
| 607 | static const AVFilterPad lut3d_inputs[] = { |
| 608 | { |
| 609 | .name = "default", |
| 610 | .type = AVMEDIA_TYPE_VIDEO, |
| 611 | .filter_frame = filter_frame, |
| 612 | .config_props = config_input, |
| 613 | }, |
| 614 | { NULL } |
| 615 | }; |
| 616 | |
| 617 | static const AVFilterPad lut3d_outputs[] = { |
| 618 | { |
| 619 | .name = "default", |
| 620 | .type = AVMEDIA_TYPE_VIDEO, |
| 621 | }, |
| 622 | { NULL } |
| 623 | }; |
| 624 | |
| 625 | AVFilter ff_vf_lut3d = { |
| 626 | .name = "lut3d", |
| 627 | .description = NULL_IF_CONFIG_SMALL("Adjust colors using a 3D LUT."), |
| 628 | .priv_size = sizeof(LUT3DContext), |
| 629 | .init = lut3d_init, |
| 630 | .query_formats = query_formats, |
| 631 | .inputs = lut3d_inputs, |
| 632 | .outputs = lut3d_outputs, |
| 633 | .priv_class = &lut3d_class, |
| 634 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
| 635 | }; |
| 636 | #endif |
| 637 | |
| 638 | #if CONFIG_HALDCLUT_FILTER |
| 639 | |
| 640 | static void update_clut(LUT3DContext *lut3d, const AVFrame *frame) |
| 641 | { |
| 642 | const uint8_t *data = frame->data[0]; |
| 643 | const int linesize = frame->linesize[0]; |
| 644 | const int w = lut3d->clut_width; |
| 645 | const int step = lut3d->clut_step; |
| 646 | const uint8_t *rgba_map = lut3d->clut_rgba_map; |
| 647 | const int level = lut3d->lutsize; |
| 648 | |
| 649 | #define LOAD_CLUT(nbits) do { \ |
| 650 | int i, j, k, x = 0, y = 0; \ |
| 651 | \ |
| 652 | for (k = 0; k < level; k++) { \ |
| 653 | for (j = 0; j < level; j++) { \ |
| 654 | for (i = 0; i < level; i++) { \ |
| 655 | const uint##nbits##_t *src = (const uint##nbits##_t *) \ |
| 656 | (data + y*linesize + x*step); \ |
| 657 | struct rgbvec *vec = &lut3d->lut[i][j][k]; \ |
| 658 | vec->r = src[rgba_map[0]] / (float)((1<<(nbits)) - 1); \ |
| 659 | vec->g = src[rgba_map[1]] / (float)((1<<(nbits)) - 1); \ |
| 660 | vec->b = src[rgba_map[2]] / (float)((1<<(nbits)) - 1); \ |
| 661 | if (++x == w) { \ |
| 662 | x = 0; \ |
| 663 | y++; \ |
| 664 | } \ |
| 665 | } \ |
| 666 | } \ |
| 667 | } \ |
| 668 | } while (0) |
| 669 | |
| 670 | if (!lut3d->clut_is16bit) LOAD_CLUT(8); |
| 671 | else LOAD_CLUT(16); |
| 672 | } |
| 673 | |
| 674 | |
| 675 | static int config_output(AVFilterLink *outlink) |
| 676 | { |
| 677 | AVFilterContext *ctx = outlink->src; |
| 678 | LUT3DContext *lut3d = ctx->priv; |
| 679 | int ret; |
| 680 | |
| 681 | outlink->w = ctx->inputs[0]->w; |
| 682 | outlink->h = ctx->inputs[0]->h; |
| 683 | outlink->time_base = ctx->inputs[0]->time_base; |
| 684 | if ((ret = ff_dualinput_init(ctx, &lut3d->dinput)) < 0) |
| 685 | return ret; |
| 686 | return 0; |
| 687 | } |
| 688 | |
| 689 | static int filter_frame_hald(AVFilterLink *inlink, AVFrame *inpicref) |
| 690 | { |
| 691 | LUT3DContext *s = inlink->dst->priv; |
| 692 | return ff_dualinput_filter_frame(&s->dinput, inlink, inpicref); |
| 693 | } |
| 694 | |
| 695 | static int request_frame(AVFilterLink *outlink) |
| 696 | { |
| 697 | LUT3DContext *s = outlink->src->priv; |
| 698 | return ff_dualinput_request_frame(&s->dinput, outlink); |
| 699 | } |
| 700 | |
| 701 | static int config_clut(AVFilterLink *inlink) |
| 702 | { |
| 703 | int size, level, w, h; |
| 704 | AVFilterContext *ctx = inlink->dst; |
| 705 | LUT3DContext *lut3d = ctx->priv; |
| 706 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| 707 | |
| 708 | lut3d->clut_is16bit = 0; |
| 709 | switch (inlink->format) { |
| 710 | case AV_PIX_FMT_RGB48: |
| 711 | case AV_PIX_FMT_BGR48: |
| 712 | case AV_PIX_FMT_RGBA64: |
| 713 | case AV_PIX_FMT_BGRA64: |
| 714 | lut3d->clut_is16bit = 1; |
| 715 | } |
| 716 | |
| 717 | lut3d->clut_step = av_get_padded_bits_per_pixel(desc) >> 3; |
| 718 | ff_fill_rgba_map(lut3d->clut_rgba_map, inlink->format); |
| 719 | |
| 720 | if (inlink->w > inlink->h) |
| 721 | av_log(ctx, AV_LOG_INFO, "Padding on the right (%dpx) of the " |
| 722 | "Hald CLUT will be ignored\n", inlink->w - inlink->h); |
| 723 | else if (inlink->w < inlink->h) |
| 724 | av_log(ctx, AV_LOG_INFO, "Padding at the bottom (%dpx) of the " |
| 725 | "Hald CLUT will be ignored\n", inlink->h - inlink->w); |
| 726 | lut3d->clut_width = w = h = FFMIN(inlink->w, inlink->h); |
| 727 | |
| 728 | for (level = 1; level*level*level < w; level++); |
| 729 | size = level*level*level; |
| 730 | if (size != w) { |
| 731 | av_log(ctx, AV_LOG_WARNING, "The Hald CLUT width does not match the level\n"); |
| 732 | return AVERROR_INVALIDDATA; |
| 733 | } |
| 734 | av_assert0(w == h && w == size); |
| 735 | level *= level; |
| 736 | if (level > MAX_LEVEL) { |
| 737 | const int max_clut_level = sqrt(MAX_LEVEL); |
| 738 | const int max_clut_size = max_clut_level*max_clut_level*max_clut_level; |
| 739 | av_log(ctx, AV_LOG_ERROR, "Too large Hald CLUT " |
| 740 | "(maximum level is %d, or %dx%d CLUT)\n", |
| 741 | max_clut_level, max_clut_size, max_clut_size); |
| 742 | return AVERROR(EINVAL); |
| 743 | } |
| 744 | lut3d->lutsize = level; |
| 745 | |
| 746 | return 0; |
| 747 | } |
| 748 | |
| 749 | static AVFrame *update_apply_clut(AVFilterContext *ctx, AVFrame *main, |
| 750 | const AVFrame *second) |
| 751 | { |
| 752 | AVFilterLink *inlink = ctx->inputs[0]; |
| 753 | update_clut(ctx->priv, second); |
| 754 | return apply_lut(inlink, main); |
| 755 | } |
| 756 | |
| 757 | static av_cold int haldclut_init(AVFilterContext *ctx) |
| 758 | { |
| 759 | LUT3DContext *lut3d = ctx->priv; |
| 760 | lut3d->dinput.process = update_apply_clut; |
| 761 | return 0; |
| 762 | } |
| 763 | |
| 764 | static av_cold void haldclut_uninit(AVFilterContext *ctx) |
| 765 | { |
| 766 | LUT3DContext *lut3d = ctx->priv; |
| 767 | ff_dualinput_uninit(&lut3d->dinput); |
| 768 | } |
| 769 | |
| 770 | static const AVOption haldclut_options[] = { |
| 771 | { "shortest", "force termination when the shortest input terminates", OFFSET(dinput.shortest), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS }, |
| 772 | { "repeatlast", "continue applying the last clut after eos", OFFSET(dinput.repeatlast), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS }, |
| 773 | COMMON_OPTIONS |
| 774 | }; |
| 775 | |
| 776 | AVFILTER_DEFINE_CLASS(haldclut); |
| 777 | |
| 778 | static const AVFilterPad haldclut_inputs[] = { |
| 779 | { |
| 780 | .name = "main", |
| 781 | .type = AVMEDIA_TYPE_VIDEO, |
| 782 | .filter_frame = filter_frame_hald, |
| 783 | .config_props = config_input, |
| 784 | },{ |
| 785 | .name = "clut", |
| 786 | .type = AVMEDIA_TYPE_VIDEO, |
| 787 | .filter_frame = filter_frame_hald, |
| 788 | .config_props = config_clut, |
| 789 | }, |
| 790 | { NULL } |
| 791 | }; |
| 792 | |
| 793 | static const AVFilterPad haldclut_outputs[] = { |
| 794 | { |
| 795 | .name = "default", |
| 796 | .type = AVMEDIA_TYPE_VIDEO, |
| 797 | .request_frame = request_frame, |
| 798 | .config_props = config_output, |
| 799 | }, |
| 800 | { NULL } |
| 801 | }; |
| 802 | |
| 803 | AVFilter ff_vf_haldclut = { |
| 804 | .name = "haldclut", |
| 805 | .description = NULL_IF_CONFIG_SMALL("Adjust colors using a Hald CLUT."), |
| 806 | .priv_size = sizeof(LUT3DContext), |
| 807 | .init = haldclut_init, |
| 808 | .uninit = haldclut_uninit, |
| 809 | .query_formats = query_formats, |
| 810 | .inputs = haldclut_inputs, |
| 811 | .outputs = haldclut_outputs, |
| 812 | .priv_class = &haldclut_class, |
| 813 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, |
| 814 | }; |
| 815 | #endif |