summaryrefslogtreecommitdiff
path: root/libavfilter/vf_atadenoise.c (plain)
blob: bf75d53d927afe4ffded2d626ea3e833462dba1f
1/*
2 * Copyright (c) 2015 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 * Adaptive Temporal Averaging Denoiser,
24 * based on paper "Video Denoising Based on Adaptive Temporal Averaging" by
25 * David Bartovčak and Miroslav Vrankić
26 */
27
28#include "libavutil/imgutils.h"
29#include "libavutil/opt.h"
30#include "libavutil/pixdesc.h"
31#include "avfilter.h"
32
33#define FF_BUFQUEUE_SIZE 129
34#include "bufferqueue.h"
35
36#include "formats.h"
37#include "internal.h"
38#include "video.h"
39
40#define SIZE FF_BUFQUEUE_SIZE
41
42typedef struct ATADenoiseContext {
43 const AVClass *class;
44
45 float fthra[4], fthrb[4];
46 int thra[4], thrb[4];
47
48 int planes;
49 int nb_planes;
50 int planewidth[4];
51 int planeheight[4];
52
53 struct FFBufQueue q;
54 void *data[4][SIZE];
55 int linesize[4][SIZE];
56 int size, mid;
57 int available;
58
59 int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
60} ATADenoiseContext;
61
62#define OFFSET(x) offsetof(ATADenoiseContext, x)
63#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
64
65static const AVOption atadenoise_options[] = {
66 { "0a", "set threshold A for 1st plane", OFFSET(fthra[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
67 { "0b", "set threshold B for 1st plane", OFFSET(fthrb[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
68 { "1a", "set threshold A for 2nd plane", OFFSET(fthra[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
69 { "1b", "set threshold B for 2nd plane", OFFSET(fthrb[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
70 { "2a", "set threshold A for 3rd plane", OFFSET(fthra[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
71 { "2b", "set threshold B for 3rd plane", OFFSET(fthrb[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
72 { "s", "set how many frames to use", OFFSET(size), AV_OPT_TYPE_INT, {.i64=9}, 5, SIZE, FLAGS },
73 { "p", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, FLAGS },
74 { NULL }
75};
76
77AVFILTER_DEFINE_CLASS(atadenoise);
78
79static int query_formats(AVFilterContext *ctx)
80{
81 static const enum AVPixelFormat pixel_fmts[] = {
82 AV_PIX_FMT_GRAY8,
83 AV_PIX_FMT_GRAY16,
84 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
85 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
86 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
87 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
88 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
89 AV_PIX_FMT_YUVJ411P,
90 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
91 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
92 AV_PIX_FMT_YUV440P10,
93 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
94 AV_PIX_FMT_YUV440P12,
95 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
96 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
97 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
98 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
99 AV_PIX_FMT_NONE
100 };
101 AVFilterFormats *formats = ff_make_format_list(pixel_fmts);
102 if (!formats)
103 return AVERROR(ENOMEM);
104 return ff_set_common_formats(ctx, formats);
105}
106
107static av_cold int init(AVFilterContext *ctx)
108{
109 ATADenoiseContext *s = ctx->priv;
110
111 if (!(s->size & 1)) {
112 av_log(ctx, AV_LOG_ERROR, "size %d is invalid. Must be an odd value.\n", s->size);
113 return AVERROR(EINVAL);
114 }
115 s->mid = s->size / 2 + 1;
116
117 return 0;
118}
119
120typedef struct ThreadData {
121 AVFrame *in, *out;
122} ThreadData;
123
124static int filter_slice8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
125{
126 ATADenoiseContext *s = ctx->priv;
127 ThreadData *td = arg;
128 AVFrame *in = td->in;
129 AVFrame *out = td->out;
130 const int size = s->size;
131 const int mid = s->mid;
132 int p, x, y, i, j;
133
134 for (p = 0; p < s->nb_planes; p++) {
135 const int h = s->planeheight[p];
136 const int w = s->planewidth[p];
137 const int slice_start = (h * jobnr) / nb_jobs;
138 const int slice_end = (h * (jobnr+1)) / nb_jobs;
139 const uint8_t *src = in->data[p] + slice_start * in->linesize[p];
140 uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
141 const int thra = s->thra[p];
142 const int thrb = s->thrb[p];
143 const uint8_t **data = (const uint8_t **)s->data[p];
144 const int *linesize = (const int *)s->linesize[p];
145 const uint8_t *srcf[SIZE];
146
147 if (!((1 << p) & s->planes)) {
148 av_image_copy_plane(dst, out->linesize[p], src, in->linesize[p],
149 w, slice_end - slice_start);
150 continue;
151 }
152
153 for (i = 0; i < size; i++)
154 srcf[i] = data[i] + slice_start * linesize[i];
155
156 for (y = slice_start; y < slice_end; y++) {
157 for (x = 0; x < w; x++) {
158 const int srcx = src[x];
159 unsigned lsumdiff = 0, rsumdiff = 0;
160 unsigned ldiff, rdiff;
161 unsigned sum = srcx;
162 int l = 0, r = 0;
163 int srcjx, srcix;
164
165 for (j = mid - 1, i = mid + 1; j >= 0 && i < size; j--, i++) {
166 srcjx = srcf[j][x];
167
168 ldiff = FFABS(srcx - srcjx);
169 lsumdiff += ldiff;
170 if (ldiff > thra ||
171 lsumdiff > thrb)
172 break;
173 l++;
174 sum += srcjx;
175
176 srcix = srcf[i][x];
177
178 rdiff = FFABS(srcx - srcix);
179 rsumdiff += rdiff;
180 if (rdiff > thra ||
181 rsumdiff > thrb)
182 break;
183 r++;
184 sum += srcix;
185 }
186
187 dst[x] = sum / (r + l + 1);
188 }
189
190 dst += out->linesize[p];
191 src += in->linesize[p];
192
193 for (i = 0; i < size; i++)
194 srcf[i] += linesize[i];
195 }
196 }
197
198 return 0;
199}
200
201static int filter_slice16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
202{
203 ATADenoiseContext *s = ctx->priv;
204 ThreadData *td = arg;
205 AVFrame *in = td->in;
206 AVFrame *out = td->out;
207 const int size = s->size;
208 const int mid = s->mid;
209 int p, x, y, i, j;
210
211 for (p = 0; p < s->nb_planes; p++) {
212 const int h = s->planeheight[p];
213 const int w = s->planewidth[p];
214 const int slice_start = (h * jobnr) / nb_jobs;
215 const int slice_end = (h * (jobnr+1)) / nb_jobs;
216 const uint16_t *src = (uint16_t *)(in->data[p] + slice_start * in->linesize[p]);
217 uint16_t *dst = (uint16_t *)(out->data[p] + slice_start * out->linesize[p]);
218 const int thra = s->thra[p];
219 const int thrb = s->thrb[p];
220 const uint8_t **data = (const uint8_t **)s->data[p];
221 const int *linesize = (const int *)s->linesize[p];
222 const uint16_t *srcf[SIZE];
223
224 if (!((1 << p) & s->planes)) {
225 av_image_copy_plane((uint8_t *)dst, out->linesize[p], (uint8_t *)src, in->linesize[p],
226 w * 2, slice_end - slice_start);
227 continue;
228 }
229
230 for (i = 0; i < s->size; i++)
231 srcf[i] = (const uint16_t *)(data[i] + slice_start * linesize[i]);
232
233 for (y = slice_start; y < slice_end; y++) {
234 for (x = 0; x < w; x++) {
235 const int srcx = src[x];
236 unsigned lsumdiff = 0, rsumdiff = 0;
237 unsigned ldiff, rdiff;
238 unsigned sum = srcx;
239 int l = 0, r = 0;
240 int srcjx, srcix;
241
242 for (j = mid - 1, i = mid + 1; j >= 0 && i < size; j--, i++) {
243 srcjx = srcf[j][x];
244
245 ldiff = FFABS(srcx - srcjx);
246 lsumdiff += ldiff;
247 if (ldiff > thra ||
248 lsumdiff > thrb)
249 break;
250 l++;
251 sum += srcjx;
252
253 srcix = srcf[i][x];
254
255 rdiff = FFABS(srcx - srcix);
256 rsumdiff += rdiff;
257 if (rdiff > thra ||
258 rsumdiff > thrb)
259 break;
260 r++;
261 sum += srcix;
262 }
263
264 dst[x] = sum / (r + l + 1);
265 }
266
267 dst += out->linesize[p] / 2;
268 src += in->linesize[p] / 2;
269
270 for (i = 0; i < size; i++)
271 srcf[i] += linesize[i] / 2;
272 }
273 }
274
275 return 0;
276}
277
278static int config_input(AVFilterLink *inlink)
279{
280 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
281 AVFilterContext *ctx = inlink->dst;
282 ATADenoiseContext *s = ctx->priv;
283 int depth;
284
285 s->nb_planes = desc->nb_components;
286
287 s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
288 s->planeheight[0] = s->planeheight[3] = inlink->h;
289 s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
290 s->planewidth[0] = s->planewidth[3] = inlink->w;
291
292 depth = desc->comp[0].depth;
293 if (depth == 8)
294 s->filter_slice = filter_slice8;
295 else
296 s->filter_slice = filter_slice16;
297
298 s->thra[0] = s->fthra[0] * (1 << depth) - 1;
299 s->thra[1] = s->fthra[1] * (1 << depth) - 1;
300 s->thra[2] = s->fthra[2] * (1 << depth) - 1;
301 s->thrb[0] = s->fthrb[0] * (1 << depth) - 1;
302 s->thrb[1] = s->fthrb[1] * (1 << depth) - 1;
303 s->thrb[2] = s->fthrb[2] * (1 << depth) - 1;
304
305 return 0;
306}
307
308static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
309{
310 AVFilterContext *ctx = inlink->dst;
311 AVFilterLink *outlink = ctx->outputs[0];
312 ATADenoiseContext *s = ctx->priv;
313 AVFrame *out, *in;
314 int i;
315
316 if (s->q.available != s->size) {
317 if (s->q.available < s->mid) {
318 for (i = 0; i < s->mid; i++) {
319 out = av_frame_clone(buf);
320 if (!out) {
321 av_frame_free(&buf);
322 return AVERROR(ENOMEM);
323 }
324 ff_bufqueue_add(ctx, &s->q, out);
325 }
326 }
327 if (s->q.available < s->size) {
328 ff_bufqueue_add(ctx, &s->q, buf);
329 s->available++;
330 }
331 return 0;
332 }
333
334 in = ff_bufqueue_peek(&s->q, s->mid);
335
336 if (!ctx->is_disabled) {
337 ThreadData td;
338
339 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
340 if (!out) {
341 av_frame_free(&buf);
342 return AVERROR(ENOMEM);
343 }
344
345 for (i = 0; i < s->size; i++) {
346 AVFrame *frame = ff_bufqueue_peek(&s->q, i);
347
348 s->data[0][i] = frame->data[0];
349 s->data[1][i] = frame->data[1];
350 s->data[2][i] = frame->data[2];
351 s->linesize[0][i] = frame->linesize[0];
352 s->linesize[1][i] = frame->linesize[1];
353 s->linesize[2][i] = frame->linesize[2];
354 }
355
356 td.in = in; td.out = out;
357 ctx->internal->execute(ctx, s->filter_slice, &td, NULL,
358 FFMIN3(s->planeheight[1],
359 s->planeheight[2],
360 ff_filter_get_nb_threads(ctx)));
361 av_frame_copy_props(out, in);
362 } else {
363 out = av_frame_clone(in);
364 if (!out) {
365 av_frame_free(&buf);
366 return AVERROR(ENOMEM);
367 }
368 }
369
370 in = ff_bufqueue_get(&s->q);
371 av_frame_free(&in);
372 ff_bufqueue_add(ctx, &s->q, buf);
373
374 return ff_filter_frame(outlink, out);
375}
376
377static int request_frame(AVFilterLink *outlink)
378{
379 AVFilterContext *ctx = outlink->src;
380 ATADenoiseContext *s = ctx->priv;
381 int ret = 0;
382
383 ret = ff_request_frame(ctx->inputs[0]);
384
385 if (ret == AVERROR_EOF && !ctx->is_disabled && s->available) {
386 AVFrame *buf = av_frame_clone(ff_bufqueue_peek(&s->q, s->available));
387 if (!buf)
388 return AVERROR(ENOMEM);
389
390 ret = filter_frame(ctx->inputs[0], buf);
391 s->available--;
392 }
393
394 return ret;
395}
396
397static av_cold void uninit(AVFilterContext *ctx)
398{
399 ATADenoiseContext *s = ctx->priv;
400
401 ff_bufqueue_discard_all(&s->q);
402}
403
404static const AVFilterPad inputs[] = {
405 {
406 .name = "default",
407 .type = AVMEDIA_TYPE_VIDEO,
408 .filter_frame = filter_frame,
409 .config_props = config_input,
410 },
411 { NULL }
412};
413
414static const AVFilterPad outputs[] = {
415 {
416 .name = "default",
417 .type = AVMEDIA_TYPE_VIDEO,
418 .request_frame = request_frame,
419 },
420 { NULL }
421};
422
423AVFilter ff_vf_atadenoise = {
424 .name = "atadenoise",
425 .description = NULL_IF_CONFIG_SMALL("Apply an Adaptive Temporal Averaging Denoiser."),
426 .priv_size = sizeof(ATADenoiseContext),
427 .priv_class = &atadenoise_class,
428 .init = init,
429 .uninit = uninit,
430 .query_formats = query_formats,
431 .inputs = inputs,
432 .outputs = outputs,
433 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
434};
435
generated by cgit at 2024-05-17 03:40:42 (GMT)