FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_geq.c
Date: 2024-07-24 19:24:46
Exec Total Coverage
Lines: 0 247 0.0%
Functions: 0 18 0.0%
Branches: 0 198 0.0%

Line Branch Exec Source
1 /*
2 * Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
3 * Copyright (C) 2012 Clément Bœsch <u pkh me>
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 * Generic equation change filter
25 * Originally written by Michael Niedermayer for the MPlayer project, and
26 * ported by Clément Bœsch for FFmpeg.
27 */
28
29 #include "libavutil/avassert.h"
30 #include "libavutil/avstring.h"
31 #include "libavutil/eval.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "formats.h"
36 #include "internal.h"
37 #include "video.h"
38
39 #define MAX_NB_THREADS 32
40 #define NB_PLANES 4
41
42 enum InterpolationMethods {
43 INTERP_NEAREST,
44 INTERP_BILINEAR,
45 NB_INTERP
46 };
47
48 static const char *const var_names[] = { "X", "Y", "W", "H", "N", "SW", "SH", "T", NULL };
49 enum { VAR_X, VAR_Y, VAR_W, VAR_H, VAR_N, VAR_SW, VAR_SH, VAR_T, VAR_VARS_NB };
50
51 typedef struct GEQContext {
52 const AVClass *class;
53 AVExpr *e[NB_PLANES][MAX_NB_THREADS]; ///< expressions for each plane and thread
54 char *expr_str[4+3]; ///< expression strings for each plane
55 AVFrame *picref; ///< current input buffer
56 uint8_t *dst; ///< reference pointer to the 8bits output
57 uint16_t *dst16; ///< reference pointer to the 16bits output
58 float *dst32; ///< reference pointer to the 32bits output
59 double values[VAR_VARS_NB]; ///< expression values
60 int hsub, vsub; ///< chroma subsampling
61 int planes; ///< number of planes
62 int interpolation;
63 int is_rgb;
64 int bps;
65
66 double *pixel_sums[NB_PLANES];
67 int needs_sum[NB_PLANES];
68 } GEQContext;
69
70 enum { Y = 0, U, V, A, G, B, R };
71
72 #define OFFSET(x) offsetof(GEQContext, x)
73 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
74
75 static const AVOption geq_options[] = {
76 { "lum_expr", "set luminance expression", OFFSET(expr_str[Y]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
77 { "lum", "set luminance expression", OFFSET(expr_str[Y]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
78 { "cb_expr", "set chroma blue expression", OFFSET(expr_str[U]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
79 { "cb", "set chroma blue expression", OFFSET(expr_str[U]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
80 { "cr_expr", "set chroma red expression", OFFSET(expr_str[V]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
81 { "cr", "set chroma red expression", OFFSET(expr_str[V]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
82 { "alpha_expr", "set alpha expression", OFFSET(expr_str[A]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
83 { "a", "set alpha expression", OFFSET(expr_str[A]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
84 { "red_expr", "set red expression", OFFSET(expr_str[R]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
85 { "r", "set red expression", OFFSET(expr_str[R]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
86 { "green_expr", "set green expression", OFFSET(expr_str[G]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
87 { "g", "set green expression", OFFSET(expr_str[G]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
88 { "blue_expr", "set blue expression", OFFSET(expr_str[B]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
89 { "b", "set blue expression", OFFSET(expr_str[B]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
90 { "interpolation","set interpolation method", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERP_BILINEAR}, 0, NB_INTERP-1, FLAGS, .unit = "interp" },
91 { "i", "set interpolation method", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERP_BILINEAR}, 0, NB_INTERP-1, FLAGS, .unit = "interp" },
92 { "nearest", "nearest interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_NEAREST}, 0, 0, FLAGS, .unit = "interp" },
93 { "n", "nearest interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_NEAREST}, 0, 0, FLAGS, .unit = "interp" },
94 { "bilinear", "bilinear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_BILINEAR}, 0, 0, FLAGS, .unit = "interp" },
95 { "b", "bilinear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_BILINEAR}, 0, 0, FLAGS, .unit = "interp" },
96 {NULL},
97 };
98
99 AVFILTER_DEFINE_CLASS(geq);
100
101 static inline double getpix(void *priv, double x, double y, int plane)
102 {
103 int xi, yi;
104 GEQContext *geq = priv;
105 AVFrame *picref = geq->picref;
106 const uint8_t *src = picref->data[plane];
107 int linesize = picref->linesize[plane];
108 const int w = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->width, geq->hsub) : picref->width;
109 const int h = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->height, geq->vsub) : picref->height;
110
111 if (!src)
112 return 0;
113
114 if (geq->interpolation == INTERP_BILINEAR) {
115 int xn, yn;
116
117 xi = x = av_clipd(x, 0, w - 1);
118 yi = y = av_clipd(y, 0, h - 1);
119 xn = FFMIN(xi + 1, w - 1);
120 yn = FFMIN(yi + 1, h - 1);
121
122 x -= xi;
123 y -= yi;
124
125 if (geq->bps > 8 && geq->bps <= 16) {
126 const uint16_t *src16 = (const uint16_t*)src;
127 linesize /= 2;
128
129 return (1-y)*((1-x)*src16[xi + yi * linesize] + x*src16[xn + yi * linesize])
130 + y *((1-x)*src16[xi + yn * linesize] + x*src16[xn + yn * linesize]);
131 } else if (geq->bps == 32) {
132 const float *src32 = (const float*)src;
133 linesize /= 4;
134
135 return (1-y)*((1-x)*src32[xi + yi * linesize] + x*src32[xn + yi * linesize])
136 + y *((1-x)*src32[xi + yn * linesize] + x*src32[xn + yn * linesize]);
137 } else if (geq->bps == 8) {
138 return (1-y)*((1-x)*src[xi + yi * linesize] + x*src[xn + yi * linesize])
139 + y *((1-x)*src[xi + yn * linesize] + x*src[xn + yn * linesize]);
140 }
141 } else {
142 xi = av_clipd(x, 0, w - 1);
143 yi = av_clipd(y, 0, h - 1);
144
145 if (geq->bps > 8 && geq->bps <= 16) {
146 const uint16_t *src16 = (const uint16_t*)src;
147 linesize /= 2;
148
149 return src16[xi + yi * linesize];
150 } else if (geq->bps == 32) {
151 const float *src32 = (const float*)src;
152 linesize /= 4;
153
154 return src32[xi + yi * linesize];
155 } else if (geq->bps == 8) {
156 return src[xi + yi * linesize];
157 }
158 }
159
160 return 0;
161 }
162
163 static int calculate_sums(GEQContext *geq, int plane, int w, int h)
164 {
165 int xi, yi;
166 AVFrame *picref = geq->picref;
167 const uint8_t *src = picref->data[plane];
168 int linesize = picref->linesize[plane];
169
170 if (!geq->pixel_sums[plane])
171 geq->pixel_sums[plane] = av_malloc_array(w, h * sizeof (*geq->pixel_sums[plane]));
172 if (!geq->pixel_sums[plane])
173 return AVERROR(ENOMEM);
174 if (geq->bps == 32)
175 linesize /= 4;
176 else if (geq->bps > 8 && geq->bps <= 16)
177 linesize /= 2;
178 for (yi = 0; yi < h; yi ++) {
179 if (geq->bps > 8 && geq->bps <= 16) {
180 const uint16_t *src16 = (const uint16_t*)src;
181 double linesum = 0;
182
183 for (xi = 0; xi < w; xi ++) {
184 linesum += src16[xi + yi * linesize];
185 geq->pixel_sums[plane][xi + yi * w] = linesum;
186 }
187 } else if (geq->bps == 8) {
188 double linesum = 0;
189
190 for (xi = 0; xi < w; xi ++) {
191 linesum += src[xi + yi * linesize];
192 geq->pixel_sums[plane][xi + yi * w] = linesum;
193 }
194 } else if (geq->bps == 32) {
195 const float *src32 = (const float*)src;
196 double linesum = 0;
197
198 for (xi = 0; xi < w; xi ++) {
199 linesum += src32[xi + yi * linesize];
200 geq->pixel_sums[plane][xi + yi * w] = linesum;
201 }
202 }
203 if (yi)
204 for (xi = 0; xi < w; xi ++) {
205 geq->pixel_sums[plane][xi + yi * w] += geq->pixel_sums[plane][xi + yi * w - w];
206 }
207 }
208 return 0;
209 }
210
211 static inline double getpix_integrate_internal(GEQContext *geq, int x, int y, int plane, int w, int h)
212 {
213 if (x > w - 1) {
214 double boundary = getpix_integrate_internal(geq, w - 1, y, plane, w, h);
215 return 2*boundary - getpix_integrate_internal(geq, 2*(w - 1) - x, y, plane, w, h);
216 } else if (y > h - 1) {
217 double boundary = getpix_integrate_internal(geq, x, h - 1, plane, w, h);
218 return 2*boundary - getpix_integrate_internal(geq, x, 2*(h - 1) - y, plane, w, h);
219 } else if (x < 0) {
220 if (x == -1) return 0;
221 return - getpix_integrate_internal(geq, -x-2, y, plane, w, h);
222 } else if (y < 0) {
223 if (y == -1) return 0;
224 return - getpix_integrate_internal(geq, x, -y-2, plane, w, h);
225 }
226
227 return geq->pixel_sums[plane][x + y * w];
228 }
229
230 static inline double getpix_integrate(void *priv, double x, double y, int plane) {
231 GEQContext *geq = priv;
232 AVFrame *picref = geq->picref;
233 const uint8_t *src = picref->data[plane];
234 const int w = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->width, geq->hsub) : picref->width;
235 const int h = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->height, geq->vsub) : picref->height;
236
237 if (!src)
238 return 0;
239
240 return getpix_integrate_internal(geq, lrint(av_clipd(x, -w, 2*w)), lrint(av_clipd(y, -h, 2*h)), plane, w, h);
241 }
242
243 //TODO: cubic interpolate
244 //TODO: keep the last few frames
245 static double lum(void *priv, double x, double y) { return getpix(priv, x, y, 0); }
246 static double cb(void *priv, double x, double y) { return getpix(priv, x, y, 1); }
247 static double cr(void *priv, double x, double y) { return getpix(priv, x, y, 2); }
248 static double alpha(void *priv, double x, double y) { return getpix(priv, x, y, 3); }
249
250 static double lumsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 0); }
251 static double cbsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 1); }
252 static double crsub(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 2); }
253 static double alphasum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 3); }
254
255 static av_cold int geq_init(AVFilterContext *ctx)
256 {
257 GEQContext *geq = ctx->priv;
258 int plane, ret = 0;
259
260 if (!geq->expr_str[Y] && !geq->expr_str[G] && !geq->expr_str[B] && !geq->expr_str[R]) {
261 av_log(ctx, AV_LOG_ERROR, "A luminance or RGB expression is mandatory\n");
262 ret = AVERROR(EINVAL);
263 goto end;
264 }
265 geq->is_rgb = !geq->expr_str[Y];
266
267 if ((geq->expr_str[Y] || geq->expr_str[U] || geq->expr_str[V]) && (geq->expr_str[G] || geq->expr_str[B] || geq->expr_str[R])) {
268 av_log(ctx, AV_LOG_ERROR, "Either YCbCr or RGB but not both must be specified\n");
269 ret = AVERROR(EINVAL);
270 goto end;
271 }
272
273 if (!geq->expr_str[U] && !geq->expr_str[V]) {
274 /* No chroma at all: fallback on luma */
275 geq->expr_str[U] = av_strdup(geq->expr_str[Y]);
276 geq->expr_str[V] = av_strdup(geq->expr_str[Y]);
277 } else {
278 /* One chroma unspecified, fallback on the other */
279 if (!geq->expr_str[U]) geq->expr_str[U] = av_strdup(geq->expr_str[V]);
280 if (!geq->expr_str[V]) geq->expr_str[V] = av_strdup(geq->expr_str[U]);
281 }
282
283 if (!geq->expr_str[A] && geq->bps != 32) {
284 geq->expr_str[A] = av_asprintf("%d", (1<<geq->bps) - 1);
285 } else if (!geq->expr_str[A]) {
286 geq->expr_str[A] = av_asprintf("%f", 1.f);
287 }
288 if (!geq->expr_str[G])
289 geq->expr_str[G] = av_strdup("g(X,Y)");
290 if (!geq->expr_str[B])
291 geq->expr_str[B] = av_strdup("b(X,Y)");
292 if (!geq->expr_str[R])
293 geq->expr_str[R] = av_strdup("r(X,Y)");
294
295 if (geq->is_rgb ?
296 (!geq->expr_str[G] || !geq->expr_str[B] || !geq->expr_str[R])
297 :
298 (!geq->expr_str[U] || !geq->expr_str[V] || !geq->expr_str[A])) {
299 ret = AVERROR(ENOMEM);
300 goto end;
301 }
302
303 for (plane = 0; plane < NB_PLANES; plane++) {
304 static double (*const p[])(void *, double, double) = {
305 lum , cb , cr , alpha ,
306 lumsum, cbsum, crsub, alphasum,
307 };
308 static const char *const func2_yuv_names[] = {
309 "lum" , "cb" , "cr" , "alpha" , "p",
310 "lumsum", "cbsum", "crsum", "alphasum", "psum",
311 NULL };
312 static const char *const func2_rgb_names[] = {
313 "g" , "b" , "r" , "alpha" , "p",
314 "gsum", "bsum", "rsum", "alphasum", "psum",
315 NULL };
316 const char *const *func2_names = geq->is_rgb ? func2_rgb_names : func2_yuv_names;
317 double (*const func2[])(void *, double, double) = {
318 lum , cb , cr , alpha , p[plane],
319 lumsum, cbsum, crsub, alphasum, p[plane + 4],
320 NULL };
321 int counter[10] = {0};
322
323 for (int i = 0; i < MAX_NB_THREADS; i++) {
324 ret = av_expr_parse(&geq->e[plane][i], geq->expr_str[plane < 3 && geq->is_rgb ? plane+4 : plane], var_names,
325 NULL, NULL, func2_names, func2, 0, ctx);
326 if (ret < 0)
327 goto end;
328 }
329
330 av_expr_count_func(geq->e[plane][0], counter, FF_ARRAY_ELEMS(counter), 2);
331 geq->needs_sum[plane] = counter[5] + counter[6] + counter[7] + counter[8] + counter[9];
332 }
333
334 end:
335 return ret;
336 }
337
338 static int geq_query_formats(AVFilterContext *ctx)
339 {
340 GEQContext *geq = ctx->priv;
341 static const enum AVPixelFormat yuv_pix_fmts[] = {
342 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
343 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
344 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
345 AV_PIX_FMT_GRAY8,
346 AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV420P9,
347 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9,
348 AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV420P10,
349 AV_PIX_FMT_YUV440P10,
350 AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
351 AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10,
352 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
353 AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14,
354 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
355 AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV420P16,
356 AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
357 AV_PIX_FMT_GRAY16,
358 AV_PIX_FMT_GRAYF32,
359 AV_PIX_FMT_NONE
360 };
361 static const enum AVPixelFormat rgb_pix_fmts[] = {
362 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
363 AV_PIX_FMT_GBRP9,
364 AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,
365 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12,
366 AV_PIX_FMT_GBRP14,
367 AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
368 AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32,
369 AV_PIX_FMT_NONE
370 };
371 const enum AVPixelFormat *pix_fmts = geq->is_rgb ? rgb_pix_fmts : yuv_pix_fmts;
372
373 return ff_set_common_formats_from_list(ctx, pix_fmts);
374 }
375
376 static int geq_config_props(AVFilterLink *inlink)
377 {
378 GEQContext *geq = inlink->dst->priv;
379 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
380
381 av_assert0(desc);
382
383 geq->hsub = desc->log2_chroma_w;
384 geq->vsub = desc->log2_chroma_h;
385 geq->bps = desc->comp[0].depth;
386 geq->planes = desc->nb_components;
387 return 0;
388 }
389
390 typedef struct ThreadData {
391 int height;
392 int width;
393 int plane;
394 int linesize;
395 } ThreadData;
396
397 static int slice_geq_filter(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
398 {
399 GEQContext *geq = ctx->priv;
400 ThreadData *td = arg;
401 const int height = td->height;
402 const int width = td->width;
403 const int plane = td->plane;
404 const int linesize = td->linesize;
405 const int slice_start = (height * jobnr) / nb_jobs;
406 const int slice_end = (height * (jobnr+1)) / nb_jobs;
407 int x, y;
408
409 double values[VAR_VARS_NB];
410 values[VAR_W] = geq->values[VAR_W];
411 values[VAR_H] = geq->values[VAR_H];
412 values[VAR_N] = geq->values[VAR_N];
413 values[VAR_SW] = geq->values[VAR_SW];
414 values[VAR_SH] = geq->values[VAR_SH];
415 values[VAR_T] = geq->values[VAR_T];
416
417 if (geq->bps == 8) {
418 uint8_t *ptr = geq->dst + linesize * slice_start;
419 for (y = slice_start; y < slice_end; y++) {
420 values[VAR_Y] = y;
421
422 for (x = 0; x < width; x++) {
423 values[VAR_X] = x;
424 ptr[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
425 }
426 ptr += linesize;
427 }
428 } else if (geq->bps <= 16) {
429 uint16_t *ptr16 = geq->dst16 + (linesize/2) * slice_start;
430 for (y = slice_start; y < slice_end; y++) {
431 values[VAR_Y] = y;
432 for (x = 0; x < width; x++) {
433 values[VAR_X] = x;
434 ptr16[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
435 }
436 ptr16 += linesize/2;
437 }
438 } else {
439 float *ptr32 = geq->dst32 + (linesize/4) * slice_start;
440 for (y = slice_start; y < slice_end; y++) {
441 values[VAR_Y] = y;
442 for (x = 0; x < width; x++) {
443 values[VAR_X] = x;
444 ptr32[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
445 }
446 ptr32 += linesize/4;
447 }
448 }
449
450 return 0;
451 }
452
453 static int geq_filter_frame(AVFilterLink *inlink, AVFrame *in)
454 {
455 int plane;
456 AVFilterContext *ctx = inlink->dst;
457 const int nb_threads = FFMIN(MAX_NB_THREADS, ff_filter_get_nb_threads(ctx));
458 GEQContext *geq = ctx->priv;
459 AVFilterLink *outlink = inlink->dst->outputs[0];
460 AVFrame *out;
461
462 geq->values[VAR_N] = inlink->frame_count_out,
463 geq->values[VAR_T] = in->pts == AV_NOPTS_VALUE ? NAN : in->pts * av_q2d(inlink->time_base),
464
465 geq->picref = in;
466 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
467 if (!out) {
468 av_frame_free(&in);
469 return AVERROR(ENOMEM);
470 }
471 av_frame_copy_props(out, in);
472
473 for (plane = 0; plane < geq->planes && out->data[plane]; plane++) {
474 const int width = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->w, geq->hsub) : inlink->w;
475 const int height = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->h, geq->vsub) : inlink->h;
476 const int linesize = out->linesize[plane];
477 ThreadData td;
478
479 geq->dst = out->data[plane];
480 geq->dst16 = (uint16_t*)out->data[plane];
481 geq->dst32 = (float*)out->data[plane];
482
483 geq->values[VAR_W] = width;
484 geq->values[VAR_H] = height;
485 geq->values[VAR_SW] = width / (double)inlink->w;
486 geq->values[VAR_SH] = height / (double)inlink->h;
487
488 td.width = width;
489 td.height = height;
490 td.plane = plane;
491 td.linesize = linesize;
492
493 if (geq->needs_sum[plane])
494 calculate_sums(geq, plane, width, height);
495
496 ff_filter_execute(ctx, slice_geq_filter, &td,
497 NULL, FFMIN(height, nb_threads));
498 }
499
500 av_frame_free(&geq->picref);
501 return ff_filter_frame(outlink, out);
502 }
503
504 static av_cold void geq_uninit(AVFilterContext *ctx)
505 {
506 int i;
507 GEQContext *geq = ctx->priv;
508
509 for (i = 0; i < NB_PLANES; i++)
510 for (int j = 0; j < MAX_NB_THREADS; j++)
511 av_expr_free(geq->e[i][j]);
512 for (i = 0; i < NB_PLANES; i++)
513 av_freep(&geq->pixel_sums);
514 }
515
516 static const AVFilterPad geq_inputs[] = {
517 {
518 .name = "default",
519 .type = AVMEDIA_TYPE_VIDEO,
520 .config_props = geq_config_props,
521 .filter_frame = geq_filter_frame,
522 },
523 };
524
525 const AVFilter ff_vf_geq = {
526 .name = "geq",
527 .description = NULL_IF_CONFIG_SMALL("Apply generic equation to each pixel."),
528 .priv_size = sizeof(GEQContext),
529 .init = geq_init,
530 .uninit = geq_uninit,
531 FILTER_INPUTS(geq_inputs),
532 FILTER_OUTPUTS(ff_video_default_filterpad),
533 FILTER_QUERY_FUNC(geq_query_formats),
534 .priv_class = &geq_class,
535 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
536 };
537