FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/vf_geq.c
Date: 2024-04-19 17:50:32
Exec Total Coverage
Lines: 0 245 0.0%
Functions: 0 18 0.0%
Branches: 0 194 0.0%
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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 ✗ xi = x = av_clipd(x, 0, w - 2);
116 ✗ yi = y = av_clipd(y, 0, h - 2);
117
118 ✗ x -= xi;
119 ✗ y -= yi;
120
121 ✗ if (geq->bps > 8 && geq->bps <= 16) {
122 ✗ const uint16_t *src16 = (const uint16_t*)src;
123 ✗ linesize /= 2;
124
125 ✗ return (1-y)*((1-x)*src16[xi + yi * linesize] + x*src16[xi + 1 + yi * linesize])
126 ✗ + y *((1-x)*src16[xi + (yi+1) * linesize] + x*src16[xi + 1 + (yi+1) * linesize]);
127 ✗ } else if (geq->bps == 32) {
128 ✗ const float *src32 = (const float*)src;
129 ✗ linesize /= 4;
130
131 ✗ return (1-y)*((1-x)*src32[xi + yi * linesize] + x*src32[xi + 1 + yi * linesize])
132 ✗ + y *((1-x)*src32[xi + (yi+1) * linesize] + x*src32[xi + 1 + (yi+1) * linesize]);
133 ✗ } else if (geq->bps == 8) {
134 ✗ return (1-y)*((1-x)*src[xi + yi * linesize] + x*src[xi + 1 + yi * linesize])
135 ✗ + y *((1-x)*src[xi + (yi+1) * linesize] + x*src[xi + 1 + (yi+1) * linesize]);
136 }
137 } else {
138 ✗ xi = av_clipd(x, 0, w - 1);
139 ✗ yi = av_clipd(y, 0, h - 1);
140
141 ✗ if (geq->bps > 8 && geq->bps <= 16) {
142 ✗ const uint16_t *src16 = (const uint16_t*)src;
143 ✗ linesize /= 2;
144
145 ✗ return src16[xi + yi * linesize];
146 ✗ } else if (geq->bps == 32) {
147 ✗ const float *src32 = (const float*)src;
148 ✗ linesize /= 4;
149
150 ✗ return src32[xi + yi * linesize];
151 ✗ } else if (geq->bps == 8) {
152 ✗ return src[xi + yi * linesize];
153 }
154 }
155
156 ✗ return 0;
157 }
158
159 ✗ static int calculate_sums(GEQContext *geq, int plane, int w, int h)
160 {
161 int xi, yi;
162 ✗ AVFrame *picref = geq->picref;
163 ✗ const uint8_t *src = picref->data[plane];
164 ✗ int linesize = picref->linesize[plane];
165
166 ✗ if (!geq->pixel_sums[plane])
167 ✗ geq->pixel_sums[plane] = av_malloc_array(w, h * sizeof (*geq->pixel_sums[plane]));
168 ✗ if (!geq->pixel_sums[plane])
169 ✗ return AVERROR(ENOMEM);
170 ✗ if (geq->bps == 32)
171 ✗ linesize /= 4;
172 ✗ else if (geq->bps > 8 && geq->bps <= 16)
173 ✗ linesize /= 2;
174 ✗ for (yi = 0; yi < h; yi ++) {
175 ✗ if (geq->bps > 8 && geq->bps <= 16) {
176 ✗ const uint16_t *src16 = (const uint16_t*)src;
177 ✗ double linesum = 0;
178
179 ✗ for (xi = 0; xi < w; xi ++) {
180 ✗ linesum += src16[xi + yi * linesize];
181 ✗ geq->pixel_sums[plane][xi + yi * w] = linesum;
182 }
183 ✗ } else if (geq->bps == 8) {
184 ✗ double linesum = 0;
185
186 ✗ for (xi = 0; xi < w; xi ++) {
187 ✗ linesum += src[xi + yi * linesize];
188 ✗ geq->pixel_sums[plane][xi + yi * w] = linesum;
189 }
190 ✗ } else if (geq->bps == 32) {
191 ✗ const float *src32 = (const float*)src;
192 ✗ double linesum = 0;
193
194 ✗ for (xi = 0; xi < w; xi ++) {
195 ✗ linesum += src32[xi + yi * linesize];
196 ✗ geq->pixel_sums[plane][xi + yi * w] = linesum;
197 }
198 }
199 ✗ if (yi)
200 ✗ for (xi = 0; xi < w; xi ++) {
201 ✗ geq->pixel_sums[plane][xi + yi * w] += geq->pixel_sums[plane][xi + yi * w - w];
202 }
203 }
204 ✗ return 0;
205 }
206
207 ✗ static inline double getpix_integrate_internal(GEQContext *geq, int x, int y, int plane, int w, int h)
208 {
209 ✗ if (x > w - 1) {
210 ✗ double boundary = getpix_integrate_internal(geq, w - 1, y, plane, w, h);
211 ✗ return 2*boundary - getpix_integrate_internal(geq, 2*(w - 1) - x, y, plane, w, h);
212 ✗ } else if (y > h - 1) {
213 ✗ double boundary = getpix_integrate_internal(geq, x, h - 1, plane, w, h);
214 ✗ return 2*boundary - getpix_integrate_internal(geq, x, 2*(h - 1) - y, plane, w, h);
215 ✗ } else if (x < 0) {
216 ✗ if (x == -1) return 0;
217 ✗ return - getpix_integrate_internal(geq, -x-2, y, plane, w, h);
218 ✗ } else if (y < 0) {
219 ✗ if (y == -1) return 0;
220 ✗ return - getpix_integrate_internal(geq, x, -y-2, plane, w, h);
221 }
222
223 ✗ return geq->pixel_sums[plane][x + y * w];
224 }
225
226 ✗ static inline double getpix_integrate(void *priv, double x, double y, int plane) {
227 ✗ GEQContext *geq = priv;
228 ✗ AVFrame *picref = geq->picref;
229 ✗ const uint8_t *src = picref->data[plane];
230 ✗ const int w = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->width, geq->hsub) : picref->width;
231 ✗ const int h = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->height, geq->vsub) : picref->height;
232
233 ✗ if (!src)
234 ✗ return 0;
235
236 ✗ return getpix_integrate_internal(geq, lrint(av_clipd(x, -w, 2*w)), lrint(av_clipd(y, -h, 2*h)), plane, w, h);
237 }
238
239 //TODO: cubic interpolate
240 //TODO: keep the last few frames
241 ✗ static double lum(void *priv, double x, double y) { return getpix(priv, x, y, 0); }
242 ✗ static double cb(void *priv, double x, double y) { return getpix(priv, x, y, 1); }
243 ✗ static double cr(void *priv, double x, double y) { return getpix(priv, x, y, 2); }
244 ✗ static double alpha(void *priv, double x, double y) { return getpix(priv, x, y, 3); }
245
246 ✗ static double lumsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 0); }
247 ✗ static double cbsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 1); }
248 ✗ static double crsub(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 2); }
249 ✗ static double alphasum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 3); }
250
251 ✗ static av_cold int geq_init(AVFilterContext *ctx)
252 {
253 ✗ GEQContext *geq = ctx->priv;
254 ✗ int plane, ret = 0;
255
256 ✗ if (!geq->expr_str[Y] && !geq->expr_str[G] && !geq->expr_str[B] && !geq->expr_str[R]) {
257 ✗ av_log(ctx, AV_LOG_ERROR, "A luminance or RGB expression is mandatory\n");
258 ✗ ret = AVERROR(EINVAL);
259 ✗ goto end;
260 }
261 ✗ geq->is_rgb = !geq->expr_str[Y];
262
263 ✗ 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])) {
264 ✗ av_log(ctx, AV_LOG_ERROR, "Either YCbCr or RGB but not both must be specified\n");
265 ✗ ret = AVERROR(EINVAL);
266 ✗ goto end;
267 }
268
269 ✗ if (!geq->expr_str[U] && !geq->expr_str[V]) {
270 /* No chroma at all: fallback on luma */
271 ✗ geq->expr_str[U] = av_strdup(geq->expr_str[Y]);
272 ✗ geq->expr_str[V] = av_strdup(geq->expr_str[Y]);
273 } else {
274 /* One chroma unspecified, fallback on the other */
275 ✗ if (!geq->expr_str[U]) geq->expr_str[U] = av_strdup(geq->expr_str[V]);
276 ✗ if (!geq->expr_str[V]) geq->expr_str[V] = av_strdup(geq->expr_str[U]);
277 }
278
279 ✗ if (!geq->expr_str[A] && geq->bps != 32) {
280 ✗ geq->expr_str[A] = av_asprintf("%d", (1<<geq->bps) - 1);
281 ✗ } else if (!geq->expr_str[A]) {
282 ✗ geq->expr_str[A] = av_asprintf("%f", 1.f);
283 }
284 ✗ if (!geq->expr_str[G])
285 ✗ geq->expr_str[G] = av_strdup("g(X,Y)");
286 ✗ if (!geq->expr_str[B])
287 ✗ geq->expr_str[B] = av_strdup("b(X,Y)");
288 ✗ if (!geq->expr_str[R])
289 ✗ geq->expr_str[R] = av_strdup("r(X,Y)");
290
291 ✗ if (geq->is_rgb ?
292 ✗ (!geq->expr_str[G] || !geq->expr_str[B] || !geq->expr_str[R])
293 :
294 ✗ (!geq->expr_str[U] || !geq->expr_str[V] || !geq->expr_str[A])) {
295 ✗ ret = AVERROR(ENOMEM);
296 ✗ goto end;
297 }
298
299 ✗ for (plane = 0; plane < NB_PLANES; plane++) {
300 static double (*const p[])(void *, double, double) = {
301 lum , cb , cr , alpha ,
302 lumsum, cbsum, crsub, alphasum,
303 };
304 static const char *const func2_yuv_names[] = {
305 "lum" , "cb" , "cr" , "alpha" , "p",
306 "lumsum", "cbsum", "crsum", "alphasum", "psum",
307 NULL };
308 static const char *const func2_rgb_names[] = {
309 "g" , "b" , "r" , "alpha" , "p",
310 "gsum", "bsum", "rsum", "alphasum", "psum",
311 NULL };
312 ✗ const char *const *func2_names = geq->is_rgb ? func2_rgb_names : func2_yuv_names;
313 ✗ double (*const func2[])(void *, double, double) = {
314 ✗ lum , cb , cr , alpha , p[plane],
315 ✗ lumsum, cbsum, crsub, alphasum, p[plane + 4],
316 NULL };
317 ✗ int counter[10] = {0};
318
319 ✗ for (int i = 0; i < MAX_NB_THREADS; i++) {
320 ✗ ret = av_expr_parse(&geq->e[plane][i], geq->expr_str[plane < 3 && geq->is_rgb ? plane+4 : plane], var_names,
321 NULL, NULL, func2_names, func2, 0, ctx);
322 ✗ if (ret < 0)
323 ✗ goto end;
324 }
325
326 ✗ av_expr_count_func(geq->e[plane][0], counter, FF_ARRAY_ELEMS(counter), 2);
327 ✗ geq->needs_sum[plane] = counter[5] + counter[6] + counter[7] + counter[8] + counter[9];
328 }
329
330 ✗ end:
331 ✗ return ret;
332 }
333
334 ✗ static int geq_query_formats(AVFilterContext *ctx)
335 {
336 ✗ GEQContext *geq = ctx->priv;
337 static const enum AVPixelFormat yuv_pix_fmts[] = {
338 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
339 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
340 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
341 AV_PIX_FMT_GRAY8,
342 AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV420P9,
343 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9,
344 AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV420P10,
345 AV_PIX_FMT_YUV440P10,
346 AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
347 AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10,
348 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
349 AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14,
350 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
351 AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV420P16,
352 AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
353 AV_PIX_FMT_GRAY16,
354 AV_PIX_FMT_GRAYF32,
355 AV_PIX_FMT_NONE
356 };
357 static const enum AVPixelFormat rgb_pix_fmts[] = {
358 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
359 AV_PIX_FMT_GBRP9,
360 AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,
361 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12,
362 AV_PIX_FMT_GBRP14,
363 AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
364 AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32,
365 AV_PIX_FMT_NONE
366 };
367 ✗ const enum AVPixelFormat *pix_fmts = geq->is_rgb ? rgb_pix_fmts : yuv_pix_fmts;
368
369 ✗ return ff_set_common_formats_from_list(ctx, pix_fmts);
370 }
371
372 ✗ static int geq_config_props(AVFilterLink *inlink)
373 {
374 ✗ GEQContext *geq = inlink->dst->priv;
375 ✗ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
376
377 ✗ av_assert0(desc);
378
379 ✗ geq->hsub = desc->log2_chroma_w;
380 ✗ geq->vsub = desc->log2_chroma_h;
381 ✗ geq->bps = desc->comp[0].depth;
382 ✗ geq->planes = desc->nb_components;
383 ✗ return 0;
384 }
385
386 typedef struct ThreadData {
387 int height;
388 int width;
389 int plane;
390 int linesize;
391 } ThreadData;
392
393 ✗ static int slice_geq_filter(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
394 {
395 ✗ GEQContext *geq = ctx->priv;
396 ✗ ThreadData *td = arg;
397 ✗ const int height = td->height;
398 ✗ const int width = td->width;
399 ✗ const int plane = td->plane;
400 ✗ const int linesize = td->linesize;
401 ✗ const int slice_start = (height * jobnr) / nb_jobs;
402 ✗ const int slice_end = (height * (jobnr+1)) / nb_jobs;
403 int x, y;
404
405 double values[VAR_VARS_NB];
406 ✗ values[VAR_W] = geq->values[VAR_W];
407 ✗ values[VAR_H] = geq->values[VAR_H];
408 ✗ values[VAR_N] = geq->values[VAR_N];
409 ✗ values[VAR_SW] = geq->values[VAR_SW];
410 ✗ values[VAR_SH] = geq->values[VAR_SH];
411 ✗ values[VAR_T] = geq->values[VAR_T];
412
413 ✗ if (geq->bps == 8) {
414 ✗ uint8_t *ptr = geq->dst + linesize * slice_start;
415 ✗ for (y = slice_start; y < slice_end; y++) {
416 ✗ values[VAR_Y] = y;
417
418 ✗ for (x = 0; x < width; x++) {
419 ✗ values[VAR_X] = x;
420 ✗ ptr[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
421 }
422 ✗ ptr += linesize;
423 }
424 ✗ } else if (geq->bps <= 16) {
425 ✗ uint16_t *ptr16 = geq->dst16 + (linesize/2) * slice_start;
426 ✗ for (y = slice_start; y < slice_end; y++) {
427 ✗ values[VAR_Y] = y;
428 ✗ for (x = 0; x < width; x++) {
429 ✗ values[VAR_X] = x;
430 ✗ ptr16[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
431 }
432 ✗ ptr16 += linesize/2;
433 }
434 } else {
435 ✗ float *ptr32 = geq->dst32 + (linesize/4) * slice_start;
436 ✗ for (y = slice_start; y < slice_end; y++) {
437 ✗ values[VAR_Y] = y;
438 ✗ for (x = 0; x < width; x++) {
439 ✗ values[VAR_X] = x;
440 ✗ ptr32[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
441 }
442 ✗ ptr32 += linesize/4;
443 }
444 }
445
446 ✗ return 0;
447 }
448
449 ✗ static int geq_filter_frame(AVFilterLink *inlink, AVFrame *in)
450 {
451 int plane;
452 ✗ AVFilterContext *ctx = inlink->dst;
453 ✗ const int nb_threads = FFMIN(MAX_NB_THREADS, ff_filter_get_nb_threads(ctx));
454 ✗ GEQContext *geq = ctx->priv;
455 ✗ AVFilterLink *outlink = inlink->dst->outputs[0];
456 AVFrame *out;
457
458 ✗ geq->values[VAR_N] = inlink->frame_count_out,
459 ✗ geq->values[VAR_T] = in->pts == AV_NOPTS_VALUE ? NAN : in->pts * av_q2d(inlink->time_base),
460
461 ✗ geq->picref = in;
462 ✗ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
463 ✗ if (!out) {
464 ✗ av_frame_free(&in);
465 ✗ return AVERROR(ENOMEM);
466 }
467 ✗ av_frame_copy_props(out, in);
468
469 ✗ for (plane = 0; plane < geq->planes && out->data[plane]; plane++) {
470 ✗ const int width = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->w, geq->hsub) : inlink->w;
471 ✗ const int height = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->h, geq->vsub) : inlink->h;
472 ✗ const int linesize = out->linesize[plane];
473 ThreadData td;
474
475 ✗ geq->dst = out->data[plane];
476 ✗ geq->dst16 = (uint16_t*)out->data[plane];
477 ✗ geq->dst32 = (float*)out->data[plane];
478
479 ✗ geq->values[VAR_W] = width;
480 ✗ geq->values[VAR_H] = height;
481 ✗ geq->values[VAR_SW] = width / (double)inlink->w;
482 ✗ geq->values[VAR_SH] = height / (double)inlink->h;
483
484 ✗ td.width = width;
485 ✗ td.height = height;
486 ✗ td.plane = plane;
487 ✗ td.linesize = linesize;
488
489 ✗ if (geq->needs_sum[plane])
490 ✗ calculate_sums(geq, plane, width, height);
491
492 ✗ ff_filter_execute(ctx, slice_geq_filter, &td,
493 ✗ NULL, FFMIN(height, nb_threads));
494 }
495
496 ✗ av_frame_free(&geq->picref);
497 ✗ return ff_filter_frame(outlink, out);
498 }
499
500 ✗ static av_cold void geq_uninit(AVFilterContext *ctx)
501 {
502 int i;
503 ✗ GEQContext *geq = ctx->priv;
504
505 ✗ for (i = 0; i < NB_PLANES; i++)
506 ✗ for (int j = 0; j < MAX_NB_THREADS; j++)
507 ✗ av_expr_free(geq->e[i][j]);
508 ✗ for (i = 0; i < NB_PLANES; i++)
509 ✗ av_freep(&geq->pixel_sums);
510 ✗ }
511
512 static const AVFilterPad geq_inputs[] = {
513 {
514 .name = "default",
515 .type = AVMEDIA_TYPE_VIDEO,
516 .config_props = geq_config_props,
517 .filter_frame = geq_filter_frame,
518 },
519 };
520
521 const AVFilter ff_vf_geq = {
522 .name = "geq",
523 .description = NULL_IF_CONFIG_SMALL("Apply generic equation to each pixel."),
524 .priv_size = sizeof(GEQContext),
525 .init = geq_init,
526 .uninit = geq_uninit,
527 FILTER_INPUTS(geq_inputs),
528 FILTER_OUTPUTS(ff_video_default_filterpad),
529 FILTER_QUERY_FUNC(geq_query_formats),
530 .priv_class = &geq_class,
531 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
532 };
533