FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_deband.c
Date: 2022-12-06 04:36:11
Exec Total Coverage
Lines: 0 221 0.0%
Functions: 0 11 0.0%
Branches: 0 118 0.0%

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1 /*
2 * Copyright (c) 2015 Niklas Haas
3 * Copyright (c) 2015 Paul B Mahol
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "avfilter.h"
27 #include "internal.h"
28 #include "video.h"
29
30 typedef struct DebandContext {
31 const AVClass *class;
32
33 int coupling;
34 float threshold[4];
35 int range;
36 int blur;
37 float direction;
38
39 int nb_components;
40 int planewidth[4];
41 int planeheight[4];
42 int shift[2];
43 int thr[4];
44
45 int *x_pos;
46 int *y_pos;
47
48 int (*deband)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
49 } DebandContext;
50
51 #define OFFSET(x) offsetof(DebandContext, x)
52 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
53
54 static const AVOption deband_options[] = {
55 { "1thr", "set 1st plane threshold", OFFSET(threshold[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
56 { "2thr", "set 2nd plane threshold", OFFSET(threshold[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
57 { "3thr", "set 3rd plane threshold", OFFSET(threshold[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
58 { "4thr", "set 4th plane threshold", OFFSET(threshold[3]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
59 { "range", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
60 { "r", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
61 { "direction", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
62 { "d", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
63 { "blur", "set blur", OFFSET(blur), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
64 { "b", "set blur", OFFSET(blur), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
65 { "coupling", "set plane coupling", OFFSET(coupling), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
66 { "c", "set plane coupling", OFFSET(coupling), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
67 { NULL }
68 };
69
70 AVFILTER_DEFINE_CLASS(deband);
71
72 static int query_formats(AVFilterContext *ctx)
73 {
74 DebandContext *s = ctx->priv;
75
76 static const enum AVPixelFormat pix_fmts[] = {
77 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10,
78 AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
79 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
80 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
81 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
82 AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ440P,
83 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
84 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
85 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
86 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
87 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
88 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
89 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
90 AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
91 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
92 AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
93 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
94 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
95 AV_PIX_FMT_NONE
96 };
97
98 static const enum AVPixelFormat cpix_fmts[] = {
99 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
100 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P9,
101 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10,
102 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
103 AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUVA444P16,
104 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
105 AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
106 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
107 AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
108 AV_PIX_FMT_NONE
109 };
110
111 return ff_set_common_formats_from_list(ctx, s->coupling ? cpix_fmts : pix_fmts);
112 }
113
114 static float frand(int x, int y)
115 {
116 const float r = sinf(x * 12.9898f + y * 78.233f) * 43758.545f;
117
118 return r - floorf(r);
119 }
120
121 static int inline get_avg(int ref0, int ref1, int ref2, int ref3)
122 {
123 return (ref0 + ref1 + ref2 + ref3) / 4;
124 }
125
126 typedef struct ThreadData {
127 AVFrame *in, *out;
128 } ThreadData;
129
130 static int deband_8_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
131 {
132 DebandContext *s = ctx->priv;
133 ThreadData *td = arg;
134 AVFrame *in = td->in;
135 AVFrame *out = td->out;
136 int x, y, p;
137
138 for (p = 0; p < s->nb_components; p++) {
139 const uint8_t *src_ptr = (const uint8_t *)in->data[p];
140 uint8_t *dst_ptr = (uint8_t *)out->data[p];
141 const int dst_linesize = out->linesize[p];
142 const int src_linesize = in->linesize[p];
143 const int thr = s->thr[p];
144 const int start = (s->planeheight[p] * jobnr ) / nb_jobs;
145 const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs;
146 const int w = s->planewidth[p] - 1;
147 const int h = s->planeheight[p] - 1;
148
149 for (y = start; y < end; y++) {
150 const int pos = y * s->planewidth[0];
151
152 for (x = 0; x < s->planewidth[p]; x++) {
153 const int x_pos = s->x_pos[pos + x];
154 const int y_pos = s->y_pos[pos + x];
155 const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
156 const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
157 const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
158 const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
159 const int src0 = src_ptr[y * src_linesize + x];
160
161 if (s->blur) {
162 const int avg = get_avg(ref0, ref1, ref2, ref3);
163 const int diff = FFABS(src0 - avg);
164
165 dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0;
166 } else {
167 dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) &&
168 (FFABS(src0 - ref1) < thr) &&
169 (FFABS(src0 - ref2) < thr) &&
170 (FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0;
171 }
172 }
173 }
174 }
175
176 return 0;
177 }
178
179 static int deband_8_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
180 {
181 DebandContext *s = ctx->priv;
182 ThreadData *td = arg;
183 AVFrame *in = td->in;
184 AVFrame *out = td->out;
185 const int start = (s->planeheight[0] * jobnr ) / nb_jobs;
186 const int end = (s->planeheight[0] * (jobnr+1)) / nb_jobs;
187 int x, y, p;
188
189 for (y = start; y < end; y++) {
190 const int pos = y * s->planewidth[0];
191
192 for (x = 0; x < s->planewidth[0]; x++) {
193 const int x_pos = s->x_pos[pos + x];
194 const int y_pos = s->y_pos[pos + x];
195 int avg[4], cmp[4] = { 0 }, src[4];
196
197 for (p = 0; p < s->nb_components; p++) {
198 const uint8_t *src_ptr = (const uint8_t *)in->data[p];
199 const int src_linesize = in->linesize[p];
200 const int thr = s->thr[p];
201 const int w = s->planewidth[p] - 1;
202 const int h = s->planeheight[p] - 1;
203 const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
204 const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
205 const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
206 const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
207 const int src0 = src_ptr[y * src_linesize + x];
208
209 src[p] = src0;
210 avg[p] = get_avg(ref0, ref1, ref2, ref3);
211
212 if (s->blur) {
213 cmp[p] = FFABS(src0 - avg[p]) < thr;
214 } else {
215 cmp[p] = (FFABS(src0 - ref0) < thr) &&
216 (FFABS(src0 - ref1) < thr) &&
217 (FFABS(src0 - ref2) < thr) &&
218 (FFABS(src0 - ref3) < thr);
219 }
220 }
221
222 for (p = 0; p < s->nb_components; p++)
223 if (!cmp[p])
224 break;
225 if (p == s->nb_components) {
226 for (p = 0; p < s->nb_components; p++) {
227 const int dst_linesize = out->linesize[p];
228
229 out->data[p][y * dst_linesize + x] = avg[p];
230 }
231 } else {
232 for (p = 0; p < s->nb_components; p++) {
233 const int dst_linesize = out->linesize[p];
234
235 out->data[p][y * dst_linesize + x] = src[p];
236 }
237 }
238 }
239 }
240
241 return 0;
242 }
243
244 static int deband_16_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
245 {
246 DebandContext *s = ctx->priv;
247 ThreadData *td = arg;
248 AVFrame *in = td->in;
249 AVFrame *out = td->out;
250 const int start = (s->planeheight[0] * jobnr ) / nb_jobs;
251 const int end = (s->planeheight[0] * (jobnr+1)) / nb_jobs;
252 int x, y, p, z;
253
254 for (y = start; y < end; y++) {
255 const int pos = y * s->planewidth[0];
256
257 for (x = 0; x < s->planewidth[0]; x++) {
258 const int x_pos = s->x_pos[pos + x];
259 const int y_pos = s->y_pos[pos + x];
260 int avg[4], cmp[4] = { 0 }, src[4];
261
262 for (p = 0; p < s->nb_components; p++) {
263 const uint16_t *src_ptr = (const uint16_t *)in->data[p];
264 const int src_linesize = in->linesize[p] / 2;
265 const int thr = s->thr[p];
266 const int w = s->planewidth[p] - 1;
267 const int h = s->planeheight[p] - 1;
268 const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
269 const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
270 const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
271 const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
272 const int src0 = src_ptr[y * src_linesize + x];
273
274 src[p] = src0;
275 avg[p] = get_avg(ref0, ref1, ref2, ref3);
276
277 if (s->blur) {
278 cmp[p] = FFABS(src0 - avg[p]) < thr;
279 } else {
280 cmp[p] = (FFABS(src0 - ref0) < thr) &&
281 (FFABS(src0 - ref1) < thr) &&
282 (FFABS(src0 - ref2) < thr) &&
283 (FFABS(src0 - ref3) < thr);
284 }
285 }
286
287 for (z = 0; z < s->nb_components; z++)
288 if (!cmp[z])
289 break;
290 if (z == s->nb_components) {
291 for (p = 0; p < s->nb_components; p++) {
292 const int dst_linesize = out->linesize[p] / 2;
293 uint16_t *dst = (uint16_t *)out->data[p] + y * dst_linesize + x;
294
295 dst[0] = avg[p];
296 }
297 } else {
298 for (p = 0; p < s->nb_components; p++) {
299 const int dst_linesize = out->linesize[p] / 2;
300 uint16_t *dst = (uint16_t *)out->data[p] + y * dst_linesize + x;
301
302 dst[0] = src[p];
303 }
304 }
305 }
306 }
307
308 return 0;
309 }
310
311 static int deband_16_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
312 {
313 DebandContext *s = ctx->priv;
314 ThreadData *td = arg;
315 AVFrame *in = td->in;
316 AVFrame *out = td->out;
317 int x, y, p;
318
319 for (p = 0; p < s->nb_components; p++) {
320 const uint16_t *src_ptr = (const uint16_t *)in->data[p];
321 uint16_t *dst_ptr = (uint16_t *)out->data[p];
322 const int dst_linesize = out->linesize[p] / 2;
323 const int src_linesize = in->linesize[p] / 2;
324 const int thr = s->thr[p];
325 const int start = (s->planeheight[p] * jobnr ) / nb_jobs;
326 const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs;
327 const int w = s->planewidth[p] - 1;
328 const int h = s->planeheight[p] - 1;
329
330 for (y = start; y < end; y++) {
331 const int pos = y * s->planewidth[0];
332
333 for (x = 0; x < s->planewidth[p]; x++) {
334 const int x_pos = s->x_pos[pos + x];
335 const int y_pos = s->y_pos[pos + x];
336 const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
337 const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
338 const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
339 const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
340 const int src0 = src_ptr[y * src_linesize + x];
341
342 if (s->blur) {
343 const int avg = get_avg(ref0, ref1, ref2, ref3);
344 const int diff = FFABS(src0 - avg);
345
346 dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0;
347 } else {
348 dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) &&
349 (FFABS(src0 - ref1) < thr) &&
350 (FFABS(src0 - ref2) < thr) &&
351 (FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0;
352 }
353 }
354 }
355 }
356
357 return 0;
358 }
359
360 static int config_input(AVFilterLink *inlink)
361 {
362 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
363 AVFilterContext *ctx = inlink->dst;
364 DebandContext *s = ctx->priv;
365 const float direction = s->direction;
366 const int range = s->range;
367 int x, y;
368
369 s->nb_components = desc->nb_components;
370
371 s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
372 s->planeheight[0] = s->planeheight[3] = inlink->h;
373 s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
374 s->planewidth[0] = s->planewidth[3] = inlink->w;
375 s->shift[0] = desc->log2_chroma_w;
376 s->shift[1] = desc->log2_chroma_h;
377
378 if (s->coupling)
379 s->deband = desc->comp[0].depth > 8 ? deband_16_coupling_c : deband_8_coupling_c;
380 else
381 s->deband = desc->comp[0].depth > 8 ? deband_16_c : deband_8_c;
382
383 s->thr[0] = ((1 << desc->comp[0].depth) - 1) * s->threshold[0];
384 s->thr[1] = ((1 << desc->comp[1].depth) - 1) * s->threshold[1];
385 s->thr[2] = ((1 << desc->comp[2].depth) - 1) * s->threshold[2];
386 s->thr[3] = ((1 << desc->comp[3].depth) - 1) * s->threshold[3];
387
388 if (!s->x_pos)
389 s->x_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->x_pos));
390 if (!s->y_pos)
391 s->y_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->y_pos));
392 if (!s->x_pos || !s->y_pos)
393 return AVERROR(ENOMEM);
394
395 for (y = 0; y < s->planeheight[0]; y++) {
396 for (x = 0; x < s->planewidth[0]; x++) {
397 const float r = frand(x, y);
398 const float dir = direction < 0 ? -direction : r * direction;
399 const int dist = range < 0 ? -range : r * range;
400
401 s->x_pos[y * s->planewidth[0] + x] = cosf(dir) * dist;
402 s->y_pos[y * s->planewidth[0] + x] = sinf(dir) * dist;
403 }
404 }
405
406 return 0;
407 }
408
409 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
410 {
411 AVFilterContext *ctx = inlink->dst;
412 AVFilterLink *outlink = ctx->outputs[0];
413 DebandContext *s = ctx->priv;
414 AVFrame *out;
415 ThreadData td;
416
417 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
418 if (!out) {
419 av_frame_free(&in);
420 return AVERROR(ENOMEM);
421 }
422 av_frame_copy_props(out, in);
423
424 td.in = in; td.out = out;
425 ff_filter_execute(ctx, s->deband, &td, NULL,
426 FFMIN3(s->planeheight[1], s->planeheight[2],
427 ff_filter_get_nb_threads(ctx)));
428
429 av_frame_free(&in);
430 return ff_filter_frame(outlink, out);
431 }
432
433 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
434 char *res, int res_len, int flags)
435 {
436 int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
437
438 if (ret < 0)
439 return ret;
440
441 return config_input(ctx->inputs[0]);
442 }
443
444 static av_cold void uninit(AVFilterContext *ctx)
445 {
446 DebandContext *s = ctx->priv;
447
448 av_freep(&s->x_pos);
449 av_freep(&s->y_pos);
450 }
451
452 static const AVFilterPad avfilter_vf_deband_inputs[] = {
453 {
454 .name = "default",
455 .type = AVMEDIA_TYPE_VIDEO,
456 .config_props = config_input,
457 .filter_frame = filter_frame,
458 },
459 };
460
461 static const AVFilterPad avfilter_vf_deband_outputs[] = {
462 {
463 .name = "default",
464 .type = AVMEDIA_TYPE_VIDEO,
465 },
466 };
467
468 const AVFilter ff_vf_deband = {
469 .name = "deband",
470 .description = NULL_IF_CONFIG_SMALL("Debands video."),
471 .priv_size = sizeof(DebandContext),
472 .priv_class = &deband_class,
473 .uninit = uninit,
474 FILTER_INPUTS(avfilter_vf_deband_inputs),
475 FILTER_OUTPUTS(avfilter_vf_deband_outputs),
476 FILTER_QUERY_FUNC(query_formats),
477 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
478 .process_command = process_command,
479 };
480