| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2022 Paul B Mahol | ||
| 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 | * Compute a look-up table from map of colors. | ||
| 24 | */ | ||
| 25 | |||
| 26 | #include "libavutil/attributes.h" | ||
| 27 | #include "libavutil/avassert.h" | ||
| 28 | #include "libavutil/common.h" | ||
| 29 | #include "libavutil/opt.h" | ||
| 30 | #include "avfilter.h" | ||
| 31 | #include "internal.h" | ||
| 32 | #include "framesync.h" | ||
| 33 | #include "video.h" | ||
| 34 | |||
| 35 | #define MAX_SIZE 64 | ||
| 36 | |||
| 37 | enum KernelType { | ||
| 38 | EUCLIDEAN, | ||
| 39 | WEUCLIDEAN, | ||
| 40 | NB_KERNELS, | ||
| 41 | }; | ||
| 42 | |||
| 43 | typedef struct ColorMapContext { | ||
| 44 | const AVClass *class; | ||
| 45 | int w, h; | ||
| 46 | int size; | ||
| 47 | int nb_maps; | ||
| 48 | int changed[2]; | ||
| 49 | |||
| 50 | float source[MAX_SIZE][4]; | ||
| 51 | float ttarget[MAX_SIZE][4]; | ||
| 52 | float target[MAX_SIZE][4]; | ||
| 53 | float icoeff[4][4]; | ||
| 54 | float coeff[MAX_SIZE][4]; | ||
| 55 | |||
| 56 | int target_type; | ||
| 57 | int kernel_type; | ||
| 58 | float (*kernel)(const float *x, const float *y); | ||
| 59 | |||
| 60 | FFFrameSync fs; | ||
| 61 | |||
| 62 | double A[(MAX_SIZE + 4) * (MAX_SIZE + 4)]; | ||
| 63 | double b[MAX_SIZE + 4]; | ||
| 64 | int pivot[MAX_SIZE + 4]; | ||
| 65 | } ColorMapContext; | ||
| 66 | |||
| 67 | #define OFFSET(x) offsetof(ColorMapContext, x) | ||
| 68 | #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM | ||
| 69 | |||
| 70 | static const AVOption colormap_options[] = { | ||
| 71 | { "patch_size", "set patch size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "64x64"}, 0, 0, FLAGS }, | ||
| 72 | { "nb_patches", "set number of patches", OFFSET(size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, MAX_SIZE, FLAGS }, | ||
| 73 | { "type", "set the target type used", OFFSET(target_type), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, .unit = "type" }, | ||
| 74 | { "relative", "the target colors are relative", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 1, FLAGS, .unit = "type" }, | ||
| 75 | { "absolute", "the target colors are absolute", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 1, FLAGS, .unit = "type" }, | ||
| 76 | { "kernel", "set the kernel used for measuring color difference", OFFSET(kernel_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_KERNELS-1, FLAGS, .unit = "kernel" }, | ||
| 77 | { "euclidean", "square root of sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64=EUCLIDEAN}, 0, 0, FLAGS, .unit = "kernel" }, | ||
| 78 | { "weuclidean", "weighted square root of sum of squared differences",0, AV_OPT_TYPE_CONST, {.i64=WEUCLIDEAN}, 0, 0, FLAGS, .unit = "kernel" }, | ||
| 79 | { NULL } | ||
| 80 | }; | ||
| 81 | |||
| 82 | ✗ | static int gauss_make_triangular(double *A, int *p, int n) | |
| 83 | { | ||
| 84 | ✗ | p[n - 1] = n - 1; | |
| 85 | ✗ | for (int k = 0; k < n; k++) { | |
| 86 | double t1; | ||
| 87 | ✗ | int m = k; | |
| 88 | |||
| 89 | ✗ | for (int i = k + 1; i < n; i++) | |
| 90 | ✗ | if (fabs(A[k + n * i]) > fabs(A[k + n * m])) | |
| 91 | ✗ | m = i; | |
| 92 | ✗ | p[k] = m; | |
| 93 | ✗ | t1 = A[k + n * m]; | |
| 94 | ✗ | A[k + n * m] = A[k + n * k]; | |
| 95 | ✗ | A[k + n * k] = t1; | |
| 96 | ✗ | if (t1 != 0) { | |
| 97 | ✗ | for (int i = k + 1; i < n; i++) | |
| 98 | ✗ | A[k + n * i] /= -t1; | |
| 99 | ✗ | if (k != m) | |
| 100 | ✗ | for (int i = k + 1; i < n; i++) { | |
| 101 | ✗ | double t2 = A[i + n * m]; | |
| 102 | ✗ | A[i + n * m] = A[i + n * k]; | |
| 103 | ✗ | A[i + n * k] = t2; | |
| 104 | } | ||
| 105 | ✗ | for (int j = k + 1; j < n; j++) | |
| 106 | ✗ | for (int i = k + 1; i < n; i++) | |
| 107 | ✗ | A[i + n * j] += A[k + j * n] * A[i + k * n]; | |
| 108 | } else { | ||
| 109 | ✗ | return 0; | |
| 110 | } | ||
| 111 | } | ||
| 112 | |||
| 113 | ✗ | return 1; | |
| 114 | } | ||
| 115 | |||
| 116 | ✗ | static void gauss_solve_triangular(const double *A, const int *p, double *b, int n) | |
| 117 | { | ||
| 118 | ✗ | for(int k = 0; k < n - 1; k++) { | |
| 119 | ✗ | int m = p[k]; | |
| 120 | ✗ | double t = b[m]; | |
| 121 | ✗ | b[m] = b[k]; | |
| 122 | ✗ | b[k] = t; | |
| 123 | ✗ | for (int i = k + 1; i < n; i++) | |
| 124 | ✗ | b[i] += A[k + n * i] * t; | |
| 125 | } | ||
| 126 | |||
| 127 | ✗ | for(int k = n - 1; k > 0; k--) { | |
| 128 | ✗ | double t = b[k] /= A[k + n * k]; | |
| 129 | ✗ | for (int i = 0; i < k; i++) | |
| 130 | ✗ | b[i] -= A[k + n * i] * t; | |
| 131 | } | ||
| 132 | |||
| 133 | ✗ | b[0] /= A[0 + 0 * n]; | |
| 134 | ✗ | } | |
| 135 | |||
| 136 | ✗ | static int gauss_solve(double *A, double *b, int n) | |
| 137 | { | ||
| 138 | ✗ | int p[3] = { 0 }; | |
| 139 | |||
| 140 | av_assert2(n <= FF_ARRAY_ELEMS(p)); | ||
| 141 | |||
| 142 | ✗ | if (!gauss_make_triangular(A, p, n)) | |
| 143 | ✗ | return 1; | |
| 144 | |||
| 145 | ✗ | gauss_solve_triangular(A, p, b, n); | |
| 146 | |||
| 147 | ✗ | return 0; | |
| 148 | } | ||
| 149 | |||
| 150 | #define P2(x) ((x)*(x)) | ||
| 151 | |||
| 152 | ✗ | static float euclidean_kernel(const float *x, const float *y) | |
| 153 | { | ||
| 154 | ✗ | const float d2 = P2(x[0]-y[0]) + | |
| 155 | ✗ | P2(x[1]-y[1]) + | |
| 156 | ✗ | P2(x[2]-y[2]); | |
| 157 | ✗ | return sqrtf(d2); | |
| 158 | } | ||
| 159 | |||
| 160 | ✗ | static float weuclidean_kernel(const float *x, const float *y) | |
| 161 | { | ||
| 162 | ✗ | const float rm = (x[0] + y[0]) * 0.5f; | |
| 163 | ✗ | const float d2 = P2(x[0]-y[0]) * (2.f + rm) + | |
| 164 | ✗ | P2(x[1]-y[1]) * 4.f + | |
| 165 | ✗ | P2(x[2]-y[2]) * (3.f - rm); | |
| 166 | ✗ | return sqrtf(d2); | |
| 167 | } | ||
| 168 | |||
| 169 | ✗ | static void build_map(AVFilterContext *ctx) | |
| 170 | { | ||
| 171 | ✗ | ColorMapContext *s = ctx->priv; | |
| 172 | |||
| 173 | ✗ | for (int j = 0; j < s->nb_maps; j++) { | |
| 174 | ✗ | s->target[j][0] = s->target_type == 0 ? s->source[j][0] + s->ttarget[j][0] : s->ttarget[j][0]; | |
| 175 | ✗ | s->target[j][1] = s->target_type == 0 ? s->source[j][1] + s->ttarget[j][1] : s->ttarget[j][1]; | |
| 176 | ✗ | s->target[j][2] = s->target_type == 0 ? s->source[j][2] + s->ttarget[j][2] : s->ttarget[j][2]; | |
| 177 | } | ||
| 178 | |||
| 179 | ✗ | for (int c = 0; c < 3; c++) { | |
| 180 | ✗ | for (int j = 0; j < s->nb_maps; j++) | |
| 181 | ✗ | s->coeff[j][c] = 0.f; | |
| 182 | |||
| 183 | ✗ | for (int j = 0; j < 4; j++) { | |
| 184 | ✗ | s->icoeff[j][c] = 0; | |
| 185 | ✗ | s->icoeff[j][c] = 0; | |
| 186 | ✗ | s->icoeff[j][c] = 0; | |
| 187 | } | ||
| 188 | |||
| 189 | ✗ | s->icoeff[c+1][c] = 1.f; | |
| 190 | |||
| 191 | ✗ | switch (s->nb_maps) { | |
| 192 | ✗ | case 1: | |
| 193 | { | ||
| 194 | ✗ | float div = fabsf(s->source[0][c]) < 1e-6f ? 1e-6f : s->source[0][c]; | |
| 195 | ✗ | s->icoeff[c][1+c] = s->target[0][c] / div; | |
| 196 | } | ||
| 197 | ✗ | break; | |
| 198 | ✗ | case 2: | |
| 199 | { | ||
| 200 | ✗ | double A[2 * 2] = { 1, s->source[0][c], | |
| 201 | ✗ | 1, s->source[1][c] }; | |
| 202 | ✗ | double b[2] = { s->target[0][c], s->target[1][c] }; | |
| 203 | |||
| 204 | ✗ | if (gauss_solve(A, b, 2)) | |
| 205 | ✗ | continue; | |
| 206 | |||
| 207 | ✗ | s->icoeff[0 ][c] = b[0]; | |
| 208 | ✗ | s->icoeff[1+c][c] = b[1]; | |
| 209 | } | ||
| 210 | ✗ | break; | |
| 211 | ✗ | case 3: | |
| 212 | { | ||
| 213 | ✗ | const uint8_t idx[3][3] = {{ 0, 1, 2 }, | |
| 214 | { 1, 0, 2 }, | ||
| 215 | { 2, 0, 1 }}; | ||
| 216 | ✗ | const uint8_t didx[3][4] = {{ 0, 1, 2, 2 }, | |
| 217 | { 0, 2, 1, 2 }, | ||
| 218 | { 0, 2, 2, 1 }}; | ||
| 219 | ✗ | const int C0 = idx[c][0]; | |
| 220 | ✗ | const int C1 = idx[c][1]; | |
| 221 | ✗ | const int C2 = idx[c][2]; | |
| 222 | ✗ | double A[3 * 3] = { 1, s->source[0][C0], s->source[0][C1] + s->source[0][C2], | |
| 223 | ✗ | 1, s->source[1][C0], s->source[1][C1] + s->source[1][C2], | |
| 224 | ✗ | 1, s->source[2][C0], s->source[2][C1] + s->source[2][C2] }; | |
| 225 | ✗ | double b[3] = { s->target[0][c], s->target[1][c], s->target[2][c] }; | |
| 226 | |||
| 227 | ✗ | if (gauss_solve(A, b, 3)) | |
| 228 | ✗ | continue; | |
| 229 | |||
| 230 | ✗ | s->icoeff[0][c] = b[didx[c][0]]; | |
| 231 | ✗ | s->icoeff[1][c] = b[didx[c][1]]; | |
| 232 | ✗ | s->icoeff[2][c] = b[didx[c][2]]; | |
| 233 | ✗ | s->icoeff[3][c] = b[didx[c][3]]; | |
| 234 | } | ||
| 235 | ✗ | break; | |
| 236 | ✗ | case 4: | |
| 237 | { | ||
| 238 | ✗ | double A[4 * 4] = { 1, s->source[0][0], s->source[0][1], s->source[0][2], | |
| 239 | ✗ | 1, s->source[1][0], s->source[1][1], s->source[1][2], | |
| 240 | ✗ | 1, s->source[2][0], s->source[2][1], s->source[2][2], | |
| 241 | ✗ | 1, s->source[3][0], s->source[3][1], s->source[3][2] }; | |
| 242 | ✗ | double b[4] = { s->target[0][c], s->target[1][c], s->target[2][c], s->target[3][c] }; | |
| 243 | int pivot[4]; | ||
| 244 | |||
| 245 | ✗ | if (!gauss_make_triangular(A, pivot, 4)) | |
| 246 | ✗ | continue; | |
| 247 | ✗ | gauss_solve_triangular(A, pivot, b, 4); | |
| 248 | |||
| 249 | ✗ | s->icoeff[0][c] = b[0]; | |
| 250 | ✗ | s->icoeff[1][c] = b[1]; | |
| 251 | ✗ | s->icoeff[2][c] = b[2]; | |
| 252 | ✗ | s->icoeff[3][c] = b[3]; | |
| 253 | } | ||
| 254 | ✗ | break; | |
| 255 | ✗ | default: | |
| 256 | { | ||
| 257 | ✗ | const int N = s->nb_maps; | |
| 258 | ✗ | const int N4 = N + 4; | |
| 259 | ✗ | double *A = s->A; | |
| 260 | ✗ | double *b = s->b; | |
| 261 | ✗ | int *pivot = s->pivot; | |
| 262 | |||
| 263 | ✗ | for (int j = 0; j < N; j++) | |
| 264 | ✗ | for (int i = j; i < N; i++) | |
| 265 | ✗ | A[j*N4+i] = A[i*N4+j] = s->kernel(s->source[i], s->source[j]); | |
| 266 | |||
| 267 | ✗ | for (int i = 0; i < N; i++) | |
| 268 | ✗ | A[i*N4+N+0] = A[(N+0)*N4+i] = 1; | |
| 269 | ✗ | for (int i = 0; i < N; i++) | |
| 270 | ✗ | A[i*N4+N+1] = A[(N+1)*N4+i] = s->source[i][0]; | |
| 271 | ✗ | for (int i = 0; i < N; i++) | |
| 272 | ✗ | A[i*N4+N+2] = A[(N+2)*N4+i] = s->source[i][1]; | |
| 273 | ✗ | for (int i = 0; i < N; i++) | |
| 274 | ✗ | A[i*N4+N+3] = A[(N+3)*N4+i] = s->source[i][2]; | |
| 275 | |||
| 276 | ✗ | for (int j = N; j < N4; j++) | |
| 277 | ✗ | for (int i = N;i < N4; i++) | |
| 278 | ✗ | A[j * N4 + i] = 0.; | |
| 279 | |||
| 280 | ✗ | if (gauss_make_triangular(A, pivot, N4)) { | |
| 281 | ✗ | for (int i = 0; i < N; i++) | |
| 282 | ✗ | b[i] = s->target[i][c]; | |
| 283 | ✗ | for (int i = N; i < N + 4; i++) | |
| 284 | ✗ | b[i] = 0; | |
| 285 | |||
| 286 | ✗ | gauss_solve_triangular(A, pivot, b, N4); | |
| 287 | |||
| 288 | ✗ | for (int i = 0; i < N; i++) | |
| 289 | ✗ | s->coeff[i][c] = b[i]; | |
| 290 | |||
| 291 | ✗ | for (int i = 0; i < 4; i++) | |
| 292 | ✗ | s->icoeff[i][c] = b[N + i]; | |
| 293 | } | ||
| 294 | } | ||
| 295 | } | ||
| 296 | } | ||
| 297 | ✗ | } | |
| 298 | |||
| 299 | typedef struct ThreadData { | ||
| 300 | AVFrame *in, *out; | ||
| 301 | } ThreadData; | ||
| 302 | |||
| 303 | ✗ | static int colormap_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) | |
| 304 | { | ||
| 305 | ✗ | ColorMapContext *s = ctx->priv; | |
| 306 | ✗ | ThreadData *td = arg; | |
| 307 | ✗ | AVFrame *in = td->in; | |
| 308 | ✗ | AVFrame *out = td->out; | |
| 309 | ✗ | const int maps = s->nb_maps; | |
| 310 | ✗ | const int width = out->width; | |
| 311 | ✗ | const int height = out->height; | |
| 312 | ✗ | const int slice_start = (height * jobnr) / nb_jobs; | |
| 313 | ✗ | const int slice_end = (height * (jobnr + 1)) / nb_jobs; | |
| 314 | ✗ | const int sr_linesize = in->linesize[2] / 4; | |
| 315 | ✗ | const int dr_linesize = out->linesize[2] / 4; | |
| 316 | ✗ | const int sg_linesize = in->linesize[0] / 4; | |
| 317 | ✗ | const int dg_linesize = out->linesize[0] / 4; | |
| 318 | ✗ | const int sb_linesize = in->linesize[1] / 4; | |
| 319 | ✗ | const int db_linesize = out->linesize[1] / 4; | |
| 320 | ✗ | const float *sr = (float *)in->data[2] + slice_start * sr_linesize; | |
| 321 | ✗ | const float *sg = (float *)in->data[0] + slice_start * sg_linesize; | |
| 322 | ✗ | const float *sb = (float *)in->data[1] + slice_start * sb_linesize; | |
| 323 | ✗ | float *r = (float *)out->data[2] + slice_start * dr_linesize; | |
| 324 | ✗ | float *g = (float *)out->data[0] + slice_start * dg_linesize; | |
| 325 | ✗ | float *b = (float *)out->data[1] + slice_start * db_linesize; | |
| 326 | ✗ | float (*kernel)(const float *x, const float *y) = s->kernel; | |
| 327 | ✗ | const float *icoeff[4] = { s->icoeff[0], s->icoeff[1], s->icoeff[2], s->icoeff[3] }; | |
| 328 | |||
| 329 | ✗ | for (int y = slice_start; y < slice_end; y++) { | |
| 330 | ✗ | for (int x = 0; x < width; x++) { | |
| 331 | ✗ | const float input[3] = { sr[x], sg[x], sb[x] }; | |
| 332 | float srv, sgv, sbv; | ||
| 333 | float rv, gv, bv; | ||
| 334 | |||
| 335 | ✗ | srv = sr[x]; | |
| 336 | ✗ | sgv = sg[x]; | |
| 337 | ✗ | sbv = sb[x]; | |
| 338 | |||
| 339 | ✗ | rv = icoeff[0][0]; | |
| 340 | ✗ | gv = icoeff[0][1]; | |
| 341 | ✗ | bv = icoeff[0][2]; | |
| 342 | |||
| 343 | ✗ | rv += icoeff[1][0] * srv + icoeff[2][0] * sgv + icoeff[3][0] * sbv; | |
| 344 | ✗ | gv += icoeff[1][1] * srv + icoeff[2][1] * sgv + icoeff[3][1] * sbv; | |
| 345 | ✗ | bv += icoeff[1][2] * srv + icoeff[2][2] * sgv + icoeff[3][2] * sbv; | |
| 346 | |||
| 347 | ✗ | for (int z = 0; z < maps && maps > 4; z++) { | |
| 348 | ✗ | const float *coeff = s->coeff[z]; | |
| 349 | ✗ | const float cr = coeff[0]; | |
| 350 | ✗ | const float cg = coeff[1]; | |
| 351 | ✗ | const float cb = coeff[2]; | |
| 352 | ✗ | const float f = kernel(input, s->source[z]); | |
| 353 | |||
| 354 | ✗ | rv += f * cr; | |
| 355 | ✗ | gv += f * cg; | |
| 356 | ✗ | bv += f * cb; | |
| 357 | } | ||
| 358 | |||
| 359 | ✗ | r[x] = rv; | |
| 360 | ✗ | g[x] = gv; | |
| 361 | ✗ | b[x] = bv; | |
| 362 | } | ||
| 363 | |||
| 364 | ✗ | sg += sg_linesize; | |
| 365 | ✗ | g += dg_linesize; | |
| 366 | ✗ | sb += sb_linesize; | |
| 367 | ✗ | b += db_linesize; | |
| 368 | ✗ | sr += sr_linesize; | |
| 369 | ✗ | r += dr_linesize; | |
| 370 | } | ||
| 371 | |||
| 372 | ✗ | return 0; | |
| 373 | } | ||
| 374 | |||
| 375 | ✗ | static int import_map(AVFilterLink *inlink, AVFrame *in) | |
| 376 | { | ||
| 377 | ✗ | AVFilterContext *ctx = inlink->dst; | |
| 378 | ✗ | ColorMapContext *s = ctx->priv; | |
| 379 | ✗ | const int is_target = FF_INLINK_IDX(inlink) > 1; | |
| 380 | ✗ | const int pw = s->w; | |
| 381 | ✗ | const int pw2 = s->w / 2; | |
| 382 | ✗ | const int ph = s->h; | |
| 383 | ✗ | const int ph2 = s->h / 2; | |
| 384 | ✗ | int changed = 0; | |
| 385 | int idx; | ||
| 386 | |||
| 387 | ✗ | for (int plane = 0; plane < 3; plane++) { | |
| 388 | ✗ | const int c = plane == 0 ? 1 : plane == 1 ? 2 : 0; | |
| 389 | |||
| 390 | ✗ | idx = 0; | |
| 391 | ✗ | for (int y = ph2; y < in->height && idx < MAX_SIZE; y += ph) { | |
| 392 | ✗ | const float *src = (const float *)(in->data[plane] + y * in->linesize[plane]); | |
| 393 | |||
| 394 | ✗ | for (int x = pw2; x < in->width && idx < MAX_SIZE; x += pw) { | |
| 395 | ✗ | float value = src[x]; | |
| 396 | |||
| 397 | ✗ | if (is_target) { | |
| 398 | ✗ | if (s->ttarget[idx][c] != value) | |
| 399 | ✗ | changed = 1; | |
| 400 | ✗ | s->ttarget[idx][c] = value; | |
| 401 | } else { | ||
| 402 | ✗ | if (s->source[idx][c] != value) | |
| 403 | ✗ | changed = 1; | |
| 404 | ✗ | s->source[idx][c] = value; | |
| 405 | } | ||
| 406 | |||
| 407 | ✗ | idx++; | |
| 408 | } | ||
| 409 | } | ||
| 410 | } | ||
| 411 | |||
| 412 | ✗ | if (changed) | |
| 413 | ✗ | s->changed[is_target] = 1; | |
| 414 | ✗ | if (!s->size) | |
| 415 | ✗ | s->size = FFMIN(idx, MAX_SIZE); | |
| 416 | ✗ | if (!is_target) | |
| 417 | ✗ | s->nb_maps = FFMIN(idx, s->size); | |
| 418 | |||
| 419 | ✗ | return 0; | |
| 420 | } | ||
| 421 | |||
| 422 | ✗ | static int process_frame(FFFrameSync *fs) | |
| 423 | { | ||
| 424 | ✗ | AVFilterContext *ctx = fs->parent; | |
| 425 | ✗ | ColorMapContext *s = fs->opaque; | |
| 426 | ✗ | AVFilterLink *outlink = ctx->outputs[0]; | |
| 427 | AVFrame *in, *out, *source, *target; | ||
| 428 | ThreadData td; | ||
| 429 | int ret; | ||
| 430 | |||
| 431 | ✗ | switch (s->kernel_type) { | |
| 432 | ✗ | case EUCLIDEAN: | |
| 433 | ✗ | s->kernel = euclidean_kernel; | |
| 434 | ✗ | break; | |
| 435 | ✗ | case WEUCLIDEAN: | |
| 436 | ✗ | s->kernel = weuclidean_kernel; | |
| 437 | ✗ | break; | |
| 438 | ✗ | default: | |
| 439 | ✗ | return AVERROR_BUG; | |
| 440 | } | ||
| 441 | |||
| 442 | ✗ | if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 1)) < 0 || | |
| 443 | ✗ | (ret = ff_framesync_get_frame(&s->fs, 1, &source, 0)) < 0 || | |
| 444 | ✗ | (ret = ff_framesync_get_frame(&s->fs, 2, &target, 0)) < 0) | |
| 445 | ✗ | return ret; | |
| 446 | |||
| 447 | ✗ | import_map(ctx->inputs[1], source); | |
| 448 | ✗ | import_map(ctx->inputs[2], target); | |
| 449 | |||
| 450 | ✗ | if (s->changed[0] || s->changed[1]) { | |
| 451 | ✗ | build_map(ctx); | |
| 452 | ✗ | s->changed[0] = s->changed[1] = 0; | |
| 453 | } | ||
| 454 | |||
| 455 | ✗ | if (!ctx->is_disabled) { | |
| 456 | ✗ | if (av_frame_is_writable(in)) { | |
| 457 | ✗ | out = in; | |
| 458 | } else { | ||
| 459 | ✗ | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); | |
| 460 | ✗ | if (!out) { | |
| 461 | ✗ | av_frame_free(&in); | |
| 462 | ✗ | return AVERROR(ENOMEM); | |
| 463 | } | ||
| 464 | ✗ | av_frame_copy_props(out, in); | |
| 465 | } | ||
| 466 | |||
| 467 | ✗ | td.in = in; | |
| 468 | ✗ | td.out = out; | |
| 469 | ✗ | ff_filter_execute(ctx, colormap_slice, &td, NULL, | |
| 470 | ✗ | FFMIN(in->height, ff_filter_get_nb_threads(ctx))); | |
| 471 | |||
| 472 | ✗ | if (out != in) | |
| 473 | ✗ | av_frame_free(&in); | |
| 474 | } else { | ||
| 475 | ✗ | out = in; | |
| 476 | } | ||
| 477 | |||
| 478 | ✗ | out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); | |
| 479 | |||
| 480 | ✗ | return ff_filter_frame(outlink, out); | |
| 481 | } | ||
| 482 | |||
| 483 | ✗ | static int config_output(AVFilterLink *outlink) | |
| 484 | { | ||
| 485 | ✗ | AVFilterContext *ctx = outlink->src; | |
| 486 | ✗ | ColorMapContext *s = ctx->priv; | |
| 487 | ✗ | AVFilterLink *inlink = ctx->inputs[0]; | |
| 488 | ✗ | AVFilterLink *source = ctx->inputs[1]; | |
| 489 | ✗ | AVFilterLink *target = ctx->inputs[2]; | |
| 490 | FFFrameSyncIn *in; | ||
| 491 | int ret; | ||
| 492 | |||
| 493 | ✗ | outlink->time_base = inlink->time_base; | |
| 494 | ✗ | outlink->frame_rate = inlink->frame_rate; | |
| 495 | ✗ | outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; | |
| 496 | ✗ | outlink->w = inlink->w; | |
| 497 | ✗ | outlink->h = inlink->h; | |
| 498 | |||
| 499 | ✗ | if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0) | |
| 500 | ✗ | return ret; | |
| 501 | |||
| 502 | ✗ | in = s->fs.in; | |
| 503 | ✗ | in[0].time_base = inlink->time_base; | |
| 504 | ✗ | in[1].time_base = source->time_base; | |
| 505 | ✗ | in[2].time_base = target->time_base; | |
| 506 | ✗ | in[0].sync = 1; | |
| 507 | ✗ | in[0].before = EXT_STOP; | |
| 508 | ✗ | in[0].after = EXT_INFINITY; | |
| 509 | ✗ | in[1].sync = 1; | |
| 510 | ✗ | in[1].before = EXT_STOP; | |
| 511 | ✗ | in[1].after = EXT_INFINITY; | |
| 512 | ✗ | in[2].sync = 1; | |
| 513 | ✗ | in[2].before = EXT_STOP; | |
| 514 | ✗ | in[2].after = EXT_INFINITY; | |
| 515 | ✗ | s->fs.opaque = s; | |
| 516 | ✗ | s->fs.on_event = process_frame; | |
| 517 | |||
| 518 | ✗ | ret = ff_framesync_configure(&s->fs); | |
| 519 | ✗ | outlink->time_base = s->fs.time_base; | |
| 520 | |||
| 521 | ✗ | return ret; | |
| 522 | } | ||
| 523 | |||
| 524 | ✗ | static int activate(AVFilterContext *ctx) | |
| 525 | { | ||
| 526 | ✗ | ColorMapContext *s = ctx->priv; | |
| 527 | ✗ | return ff_framesync_activate(&s->fs); | |
| 528 | } | ||
| 529 | |||
| 530 | ✗ | static av_cold void uninit(AVFilterContext *ctx) | |
| 531 | { | ||
| 532 | ✗ | ColorMapContext *const s = ctx->priv; | |
| 533 | |||
| 534 | ✗ | ff_framesync_uninit(&s->fs); | |
| 535 | ✗ | } | |
| 536 | |||
| 537 | static const AVFilterPad inputs[] = { | ||
| 538 | { | ||
| 539 | .name = "default", | ||
| 540 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 541 | }, | ||
| 542 | { | ||
| 543 | .name = "source", | ||
| 544 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 545 | }, | ||
| 546 | { | ||
| 547 | .name = "target", | ||
| 548 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 549 | }, | ||
| 550 | }; | ||
| 551 | |||
| 552 | static const AVFilterPad outputs[] = { | ||
| 553 | { | ||
| 554 | .name = "default", | ||
| 555 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 556 | .config_props = config_output, | ||
| 557 | }, | ||
| 558 | }; | ||
| 559 | |||
| 560 | AVFILTER_DEFINE_CLASS(colormap); | ||
| 561 | |||
| 562 | const AVFilter ff_vf_colormap = { | ||
| 563 | .name = "colormap", | ||
| 564 | .description = NULL_IF_CONFIG_SMALL("Apply custom Color Maps to video stream."), | ||
| 565 | .priv_class = &colormap_class, | ||
| 566 | .priv_size = sizeof(ColorMapContext), | ||
| 567 | .activate = activate, | ||
| 568 | FILTER_INPUTS(inputs), | ||
| 569 | FILTER_OUTPUTS(outputs), | ||
| 570 | FILTER_PIXFMTS(AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32), | ||
| 571 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | | ||
| 572 | AVFILTER_FLAG_SLICE_THREADS, | ||
| 573 | .process_command = ff_filter_process_command, | ||
| 574 | .uninit = uninit, | ||
| 575 | }; | ||
| 576 |