FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_lut.c
Date: 2024-04-19 17:50:32
Exec Total Coverage
Lines: 155 198 78.3%
Functions: 8 14 57.1%
Branches: 87 109 79.8%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2011 Stefano Sabatini
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 for binding the input value to the output
24 * value, and apply it to input video.
25 */
26
27 #include "config_components.h"
28
29 #include "libavutil/attributes.h"
30 #include "libavutil/bswap.h"
31 #include "libavutil/common.h"
32 #include "libavutil/eval.h"
33 #include "libavutil/mem.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/pixdesc.h"
36 #include "avfilter.h"
37 #include "drawutils.h"
38 #include "formats.h"
39 #include "internal.h"
40 #include "video.h"
41
42 static const char *const var_names[] = {
43 "w", ///< width of the input video
44 "h", ///< height of the input video
45 "val", ///< input value for the pixel
46 "maxval", ///< max value for the pixel
47 "minval", ///< min value for the pixel
48 "negval", ///< negated value
49 "clipval",
50 NULL
51 };
52
53 enum var_name {
54 VAR_W,
55 VAR_H,
56 VAR_VAL,
57 VAR_MAXVAL,
58 VAR_MINVAL,
59 VAR_NEGVAL,
60 VAR_CLIPVAL,
61 VAR_VARS_NB
62 };
63
64 typedef struct LutContext {
65 const AVClass *class;
66 uint16_t lut[4][256 * 256]; ///< lookup table for each component
67 char *comp_expr_str[4];
68 AVExpr *comp_expr[4];
69 int hsub, vsub;
70 double var_values[VAR_VARS_NB];
71 int is_rgb, is_yuv;
72 int is_planar;
73 int is_16bit;
74 int step;
75 } LutContext;
76
77 #define Y 0
78 #define U 1
79 #define V 2
80 #define R 0
81 #define G 1
82 #define B 2
83 #define A 3
84
85 #define OFFSET(x) offsetof(LutContext, x)
86 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
87
88 static const AVOption options[] = {
89 { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
90 { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
91 { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
92 { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
93 { "y", "set Y expression", OFFSET(comp_expr_str[Y]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
94 { "u", "set U expression", OFFSET(comp_expr_str[U]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
95 { "v", "set V expression", OFFSET(comp_expr_str[V]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
96 { "r", "set R expression", OFFSET(comp_expr_str[R]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
97 { "g", "set G expression", OFFSET(comp_expr_str[G]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
98 { "b", "set B expression", OFFSET(comp_expr_str[B]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
99 { "a", "set A expression", OFFSET(comp_expr_str[A]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
100 { NULL }
101 };
102
103 115 static av_cold void uninit(AVFilterContext *ctx)
104 {
105 115 LutContext *s = ctx->priv;
106 int i;
107
108
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575 for (i = 0; i < 4; i++) {
109 460 av_expr_free(s->comp_expr[i]);
110 460 s->comp_expr[i] = NULL;
111 460 av_freep(&s->comp_expr_str[i]);
112 }
113 115 }
114
115 #define YUV_FORMATS \
116 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, \
117 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, \
118 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, \
119 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \
120 AV_PIX_FMT_YUVJ440P, \
121 AV_PIX_FMT_YUV444P9LE, AV_PIX_FMT_YUV422P9LE, AV_PIX_FMT_YUV420P9LE, \
122 AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUV420P10LE, AV_PIX_FMT_YUV440P10LE, \
123 AV_PIX_FMT_YUV444P12LE, AV_PIX_FMT_YUV422P12LE, AV_PIX_FMT_YUV420P12LE, AV_PIX_FMT_YUV440P12LE, \
124 AV_PIX_FMT_YUV444P14LE, AV_PIX_FMT_YUV422P14LE, AV_PIX_FMT_YUV420P14LE, \
125 AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUV420P16LE, \
126 AV_PIX_FMT_YUVA444P16LE, AV_PIX_FMT_YUVA422P16LE, AV_PIX_FMT_YUVA420P16LE
127
128 #define RGB_FORMATS \
129 AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, \
130 AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, \
131 AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, \
132 AV_PIX_FMT_RGB48LE, AV_PIX_FMT_RGBA64LE, \
133 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, \
134 AV_PIX_FMT_GBRP9LE, AV_PIX_FMT_GBRP10LE, \
135 AV_PIX_FMT_GBRAP10LE, \
136 AV_PIX_FMT_GBRP12LE, AV_PIX_FMT_GBRP14LE, \
137 AV_PIX_FMT_GBRP16LE, AV_PIX_FMT_GBRAP12LE, \
138 AV_PIX_FMT_GBRAP16LE
139
140 #define GRAY_FORMATS \
141 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9LE, AV_PIX_FMT_GRAY10LE, \
142 AV_PIX_FMT_GRAY12LE, AV_PIX_FMT_GRAY14LE, AV_PIX_FMT_GRAY16LE
143
144 static const enum AVPixelFormat yuv_pix_fmts[] = { YUV_FORMATS, AV_PIX_FMT_NONE };
145 static const enum AVPixelFormat rgb_pix_fmts[] = { RGB_FORMATS, AV_PIX_FMT_NONE };
146 static const enum AVPixelFormat all_pix_fmts[] = { RGB_FORMATS, YUV_FORMATS, GRAY_FORMATS, AV_PIX_FMT_NONE };
147
148 58 static int query_formats(AVFilterContext *ctx)
149 {
150 58 LutContext *s = ctx->priv;
151
152
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116 const enum AVPixelFormat *pix_fmts = s->is_rgb ? rgb_pix_fmts :
153
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58 s->is_yuv ? yuv_pix_fmts :
154 all_pix_fmts;
155 58 return ff_set_common_formats_from_list(ctx, pix_fmts);
156 }
157
158 /**
159 * Clip value val in the minval - maxval range.
160 */
161 static double clip(void *opaque, double val)
162 {
163 LutContext *s = opaque;
164 double minval = s->var_values[VAR_MINVAL];
165 double maxval = s->var_values[VAR_MAXVAL];
166
167 return av_clip(val, minval, maxval);
168 }
169
170 /**
171 * Compute gamma correction for value val, assuming the minval-maxval
172 * range, val is clipped to a value contained in the same interval.
173 */
174 static double compute_gammaval(void *opaque, double gamma)
175 {
176 LutContext *s = opaque;
177 double val = s->var_values[VAR_CLIPVAL];
178 double minval = s->var_values[VAR_MINVAL];
179 double maxval = s->var_values[VAR_MAXVAL];
180
181 return pow((val-minval)/(maxval-minval), gamma) * (maxval-minval)+minval;
182 }
183
184 /**
185 * Compute ITU Rec.709 gamma correction of value val.
186 */
187 static double compute_gammaval709(void *opaque, double gamma)
188 {
189 LutContext *s = opaque;
190 double val = s->var_values[VAR_CLIPVAL];
191 double minval = s->var_values[VAR_MINVAL];
192 double maxval = s->var_values[VAR_MAXVAL];
193 double level = (val - minval) / (maxval - minval);
194 level = level < 0.018 ? 4.5 * level
195 : 1.099 * pow(level, 1.0 / gamma) - 0.099;
196 return level * (maxval - minval) + minval;
197 }
198
199 static double (* const funcs1[])(void *, double) = {
200 clip,
201 compute_gammaval,
202 compute_gammaval709,
203 NULL
204 };
205
206 static const char * const funcs1_names[] = {
207 "clip",
208 "gammaval",
209 "gammaval709",
210 NULL
211 };
212
213 57 static int config_props(AVFilterLink *inlink)
214 {
215 57 AVFilterContext *ctx = inlink->dst;
216 57 LutContext *s = ctx->priv;
217 57 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
218 uint8_t rgba_map[4]; /* component index -> RGBA color index map */
219 int min[4], max[4];
220 int val, color, ret;
221
222 57 s->hsub = desc->log2_chroma_w;
223 57 s->vsub = desc->log2_chroma_h;
224
225 57 s->var_values[VAR_W] = inlink->w;
226 57 s->var_values[VAR_H] = inlink->h;
227 57 s->is_16bit = desc->comp[0].depth > 8;
228
229
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57 switch (inlink->format) {
230 29 case AV_PIX_FMT_YUV410P:
231 case AV_PIX_FMT_YUV411P:
232 case AV_PIX_FMT_YUV420P:
233 case AV_PIX_FMT_YUV422P:
234 case AV_PIX_FMT_YUV440P:
235 case AV_PIX_FMT_YUV444P:
236 case AV_PIX_FMT_YUVA420P:
237 case AV_PIX_FMT_YUVA422P:
238 case AV_PIX_FMT_YUVA444P:
239 case AV_PIX_FMT_YUV420P9LE:
240 case AV_PIX_FMT_YUV422P9LE:
241 case AV_PIX_FMT_YUV444P9LE:
242 case AV_PIX_FMT_YUVA420P9LE:
243 case AV_PIX_FMT_YUVA422P9LE:
244 case AV_PIX_FMT_YUVA444P9LE:
245 case AV_PIX_FMT_YUV420P10LE:
246 case AV_PIX_FMT_YUV422P10LE:
247 case AV_PIX_FMT_YUV440P10LE:
248 case AV_PIX_FMT_YUV444P10LE:
249 case AV_PIX_FMT_YUVA420P10LE:
250 case AV_PIX_FMT_YUVA422P10LE:
251 case AV_PIX_FMT_YUVA444P10LE:
252 case AV_PIX_FMT_YUV420P12LE:
253 case AV_PIX_FMT_YUV422P12LE:
254 case AV_PIX_FMT_YUV440P12LE:
255 case AV_PIX_FMT_YUV444P12LE:
256 case AV_PIX_FMT_YUV420P14LE:
257 case AV_PIX_FMT_YUV422P14LE:
258 case AV_PIX_FMT_YUV444P14LE:
259 case AV_PIX_FMT_YUV420P16LE:
260 case AV_PIX_FMT_YUV422P16LE:
261 case AV_PIX_FMT_YUV444P16LE:
262 case AV_PIX_FMT_YUVA420P16LE:
263 case AV_PIX_FMT_YUVA422P16LE:
264 case AV_PIX_FMT_YUVA444P16LE:
265 29 min[Y] = 16 * (1 << (desc->comp[0].depth - 8));
266 29 min[U] = 16 * (1 << (desc->comp[1].depth - 8));
267 29 min[V] = 16 * (1 << (desc->comp[2].depth - 8));
268 29 min[A] = 0;
269 29 max[Y] = 235 * (1 << (desc->comp[0].depth - 8));
270 29 max[U] = 240 * (1 << (desc->comp[1].depth - 8));
271 29 max[V] = 240 * (1 << (desc->comp[2].depth - 8));
272 29 max[A] = (1 << desc->comp[0].depth) - 1;
273 29 break;
274 2 case AV_PIX_FMT_RGB48LE:
275 case AV_PIX_FMT_RGBA64LE:
276 2 min[0] = min[1] = min[2] = min[3] = 0;
277 2 max[0] = max[1] = max[2] = max[3] = 65535;
278 2 break;
279 26 default:
280 26 min[0] = min[1] = min[2] = min[3] = 0;
281 26 max[0] = max[1] = max[2] = max[3] = 255 * (1 << (desc->comp[0].depth - 8));
282 }
283
284 57 s->is_yuv = s->is_rgb = 0;
285 57 s->is_planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;
286
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57 if (ff_fmt_is_in(inlink->format, yuv_pix_fmts)) s->is_yuv = 1;
287
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24 else if (ff_fmt_is_in(inlink->format, rgb_pix_fmts)) s->is_rgb = 1;
288
289
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57 if (s->is_rgb) {
290 18 ff_fill_rgba_map(rgba_map, inlink->format);
291 18 s->step = av_get_bits_per_pixel(desc) >> 3;
292
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18 if (s->is_16bit) {
293 10 s->step = s->step >> 1;
294 }
295 }
296
297
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231 for (color = 0; color < desc->nb_components; color++) {
298 double res;
299
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174 int comp = s->is_rgb ? rgba_map[color] : color;
300
301 /* create the parsed expression */
302 174 av_expr_free(s->comp_expr[color]);
303 174 s->comp_expr[color] = NULL;
304 174 ret = av_expr_parse(&s->comp_expr[color], s->comp_expr_str[color],
305 var_names, funcs1_names, funcs1, NULL, NULL, 0, ctx);
306
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174 if (ret < 0) {
307 av_log(ctx, AV_LOG_ERROR,
308 "Error when parsing the expression '%s' for the component %d and color %d.\n",
309 s->comp_expr_str[comp], comp, color);
310 return AVERROR(EINVAL);
311 }
312
313 /* compute the lut */
314 174 s->var_values[VAR_MAXVAL] = max[color];
315 174 s->var_values[VAR_MINVAL] = min[color];
316
317
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11403438 for (val = 0; val < FF_ARRAY_ELEMS(s->lut[comp]); val++) {
318 11403264 s->var_values[VAR_VAL] = val;
319 11403264 s->var_values[VAR_CLIPVAL] = av_clip(val, min[color], max[color]);
320 11403264 s->var_values[VAR_NEGVAL] =
321 11403264 av_clip(min[color] + max[color] - s->var_values[VAR_VAL],
322 min[color], max[color]);
323
324 11403264 res = av_expr_eval(s->comp_expr[color], s->var_values, s);
325
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11403264 if (isnan(res)) {
326 av_log(ctx, AV_LOG_ERROR,
327 "Error when evaluating the expression '%s' for the value %d for the component %d.\n",
328 s->comp_expr_str[color], val, comp);
329 return AVERROR(EINVAL);
330 }
331 11403264 s->lut[comp][val] = av_clip((int)res, 0, max[A]);
332 11403264 av_log(ctx, AV_LOG_DEBUG, "val[%d][%d] = %d\n", comp, val, s->lut[comp][val]);
333 }
334 }
335
336 57 return 0;
337 }
338
339 struct thread_data {
340 AVFrame *in;
341 AVFrame *out;
342
343 int w;
344 int h;
345 };
346
347 #define LOAD_PACKED_COMMON\
348 LutContext *s = ctx->priv;\
349 const struct thread_data *td = arg;\
350 \
351 int i, j;\
352 const int w = td->w;\
353 const int h = td->h;\
354 AVFrame *in = td->in;\
355 AVFrame *out = td->out;\
356 const uint16_t (*tab)[256*256] = (const uint16_t (*)[256*256])s->lut;\
357 const int step = s->step;\
358 \
359 const int slice_start = (h * jobnr ) / nb_jobs;\
360 const int slice_end = (h * (jobnr+1)) / nb_jobs;\
361
362 /* packed, 16-bit */
363 2 static int lut_packed_16bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
364 {
365 2 LOAD_PACKED_COMMON
366
367 uint16_t *inrow, *outrow, *inrow0, *outrow0;
368 2 const int in_linesize = in->linesize[0] / 2;
369 2 const int out_linesize = out->linesize[0] / 2;
370 2 inrow0 = (uint16_t *)in ->data[0];
371 2 outrow0 = (uint16_t *)out->data[0];
372
373
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578 for (i = slice_start; i < slice_end; i++) {
374 576 inrow = inrow0 + i * in_linesize;
375 576 outrow = outrow0 + i * out_linesize;
376
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203328 for (j = 0; j < w; j++) {
377
378
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202752 switch (step) {
379 #if HAVE_BIGENDIAN
380 case 4: outrow[3] = av_bswap16(tab[3][av_bswap16(inrow[3])]); // Fall-through
381 case 3: outrow[2] = av_bswap16(tab[2][av_bswap16(inrow[2])]); // Fall-through
382 case 2: outrow[1] = av_bswap16(tab[1][av_bswap16(inrow[1])]); // Fall-through
383 default: outrow[0] = av_bswap16(tab[0][av_bswap16(inrow[0])]);
384 #else
385 101376 case 4: outrow[3] = tab[3][inrow[3]]; // Fall-through
386 202752 case 3: outrow[2] = tab[2][inrow[2]]; // Fall-through
387 202752 case 2: outrow[1] = tab[1][inrow[1]]; // Fall-through
388 202752 default: outrow[0] = tab[0][inrow[0]];
389 #endif
390 }
391 202752 outrow += step;
392 202752 inrow += step;
393 }
394 }
395
396 2 return 0;
397 }
398
399 /* packed, 8-bit */
400 6 static int lut_packed_8bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
401 {
402 6 LOAD_PACKED_COMMON
403
404 uint8_t *inrow, *outrow, *inrow0, *outrow0;
405 6 const int in_linesize = in->linesize[0];
406 6 const int out_linesize = out->linesize[0];
407 6 inrow0 = in ->data[0];
408 6 outrow0 = out->data[0];
409
410
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1734 for (i = slice_start; i < slice_end; i++) {
411 1728 inrow = inrow0 + i * in_linesize;
412 1728 outrow = outrow0 + i * out_linesize;
413
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609984 for (j = 0; j < w; j++) {
414
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608256 switch (step) {
415 405504 case 4: outrow[3] = tab[3][inrow[3]]; // Fall-through
416 608256 case 3: outrow[2] = tab[2][inrow[2]]; // Fall-through
417 608256 case 2: outrow[1] = tab[1][inrow[1]]; // Fall-through
418 608256 default: outrow[0] = tab[0][inrow[0]];
419 }
420 608256 outrow += step;
421 608256 inrow += step;
422 }
423 }
424
425 6 return 0;
426 }
427
428 #define LOAD_PLANAR_COMMON\
429 LutContext *s = ctx->priv;\
430 const struct thread_data *td = arg;\
431 int i, j, plane;\
432 AVFrame *in = td->in;\
433 AVFrame *out = td->out;\
434
435 #define PLANAR_COMMON\
436 int vsub = plane == 1 || plane == 2 ? s->vsub : 0;\
437 int hsub = plane == 1 || plane == 2 ? s->hsub : 0;\
438 int h = AV_CEIL_RSHIFT(td->h, vsub);\
439 int w = AV_CEIL_RSHIFT(td->w, hsub);\
440 const uint16_t *tab = s->lut[plane];\
441 \
442 const int slice_start = (h * jobnr ) / nb_jobs;\
443 const int slice_end = (h * (jobnr+1)) / nb_jobs;\
444
445 /* planar >8 bit depth */
446 33 static int lut_planar_16bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
447 {
448 33 LOAD_PLANAR_COMMON
449
450 uint16_t *inrow, *outrow;
451
452
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128 for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
453
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95 PLANAR_COMMON
454
455 95 const int in_linesize = in->linesize[plane] / 2;
456 95 const int out_linesize = out->linesize[plane] / 2;
457
458 95 inrow = (uint16_t *)in ->data[plane] + slice_start * in_linesize;
459 95 outrow = (uint16_t *)out->data[plane] + slice_start * out_linesize;
460
461
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25151 for (i = slice_start; i < slice_end; i++) {
462
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7932384 for (j = 0; j < w; j++) {
463 #if HAVE_BIGENDIAN
464 outrow[j] = av_bswap16(tab[av_bswap16(inrow[j])]);
465 #else
466 7907328 outrow[j] = tab[inrow[j]];
467 #endif
468 }
469 25056 inrow += in_linesize;
470 25056 outrow += out_linesize;
471 }
472 }
473
474 33 return 0;
475 }
476
477 /* planar 8bit depth */
478 16 static int lut_planar_8bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
479 {
480 16 LOAD_PLANAR_COMMON
481
482 uint8_t *inrow, *outrow;
483
484
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66 for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
485
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50 PLANAR_COMMON
486
487 50 const int in_linesize = in->linesize[plane];
488 50 const int out_linesize = out->linesize[plane];
489
490 50 inrow = in ->data[plane] + slice_start * in_linesize;
491 50 outrow = out->data[plane] + slice_start * out_linesize;
492
493
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12578 for (i = slice_start; i < slice_end; i++) {
494
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3776112 for (j = 0; j < w; j++)
495 3763584 outrow[j] = tab[inrow[j]];
496 12528 inrow += in_linesize;
497 12528 outrow += out_linesize;
498 }
499 }
500
501 16 return 0;
502 }
503
504 #define PACKED_THREAD_DATA\
505 struct thread_data td = {\
506 .in = in,\
507 .out = out,\
508 .w = inlink->w,\
509 .h = in->height,\
510 };\
511
512 #define PLANAR_THREAD_DATA\
513 struct thread_data td = {\
514 .in = in,\
515 .out = out,\
516 .w = inlink->w,\
517 .h = inlink->h,\
518 };\
519
520 57 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
521 {
522 57 AVFilterContext *ctx = inlink->dst;
523 57 LutContext *s = ctx->priv;
524 57 AVFilterLink *outlink = ctx->outputs[0];
525 AVFrame *out;
526 57 int direct = 0;
527
528
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57 if (av_frame_is_writable(in)) {
529 57 direct = 1;
530 57 out = in;
531 } else {
532 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
533 if (!out) {
534 av_frame_free(&in);
535 return AVERROR(ENOMEM);
536 }
537 av_frame_copy_props(out, in);
538 }
539
540
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59 if (s->is_rgb && s->is_16bit && !s->is_planar) {
541 /* packed, 16-bit */
542 2 PACKED_THREAD_DATA
543 2 ff_filter_execute(ctx, lut_packed_16bits, &td, NULL,
544
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2 FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
545
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61 } else if (s->is_rgb && !s->is_planar) {
546 /* packed 8 bits */
547 6 PACKED_THREAD_DATA
548 6 ff_filter_execute(ctx, lut_packed_8bits, &td, NULL,
549
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6 FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
550
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49 } else if (s->is_16bit) {
551 /* planar >8 bit depth */
552 33 PLANAR_THREAD_DATA
553 33 ff_filter_execute(ctx, lut_planar_16bits, &td, NULL,
554
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33 FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
555 } else {
556 /* planar 8bit depth */
557 16 PLANAR_THREAD_DATA
558 16 ff_filter_execute(ctx, lut_planar_8bits, &td, NULL,
559
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16 FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
560 }
561
562
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57 if (!direct)
563 av_frame_free(&in);
564
565 57 return ff_filter_frame(outlink, out);
566 }
567
568 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
569 char *res, int res_len, int flags)
570 {
571 int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
572
573 if (ret < 0)
574 return ret;
575
576 return config_props(ctx->inputs[0]);
577 }
578
579 static const AVFilterPad inputs[] = {
580 { .name = "default",
581 .type = AVMEDIA_TYPE_VIDEO,
582 .filter_frame = filter_frame,
583 .config_props = config_props,
584 },
585 };
586
587 #define DEFINE_LUT_FILTER(name_, description_, priv_class_) \
588 const AVFilter ff_vf_##name_ = { \
589 .name = #name_, \
590 .description = NULL_IF_CONFIG_SMALL(description_), \
591 .priv_class = &priv_class_ ## _class, \
592 .priv_size = sizeof(LutContext), \
593 .init = name_##_init, \
594 .uninit = uninit, \
595 FILTER_INPUTS(inputs), \
596 FILTER_OUTPUTS(ff_video_default_filterpad), \
597 FILTER_QUERY_FUNC(query_formats), \
598 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | \
599 AVFILTER_FLAG_SLICE_THREADS, \
600 .process_command = process_command, \
601 }
602
603 AVFILTER_DEFINE_CLASS_EXT(lut, "lut/lutyuv/lutrgb", options);
604
605 #if CONFIG_LUT_FILTER
606
607 #define lut_init NULL
608 DEFINE_LUT_FILTER(lut, "Compute and apply a lookup table to the RGB/YUV input video.",
609 lut);
610 #undef lut_init
611 #endif
612
613 #if CONFIG_LUTYUV_FILTER
614
615 static av_cold int lutyuv_init(AVFilterContext *ctx)
616 {
617 LutContext *s = ctx->priv;
618
619 s->is_yuv = 1;
620
621 return 0;
622 }
623
624 DEFINE_LUT_FILTER(lutyuv, "Compute and apply a lookup table to the YUV input video.",
625 lut);
626 #endif
627
628 #if CONFIG_LUTRGB_FILTER
629
630 static av_cold int lutrgb_init(AVFilterContext *ctx)
631 {
632 LutContext *s = ctx->priv;
633
634 s->is_rgb = 1;
635
636 return 0;
637 }
638
639 DEFINE_LUT_FILTER(lutrgb, "Compute and apply a lookup table to the RGB input video.",
640 lut);
641 #endif
642