FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_dedot.c
Date: 2024-07-17 14:05:47
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Lines: 0 102 0.0%
Functions: 0 7 0.0%
Branches: 0 142 0.0%

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1 /*
2 * Copyright (c) 2018 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 #include "libavutil/opt.h"
22 #include "libavutil/pixdesc.h"
23
24 #include "avfilter.h"
25 #include "filters.h"
26 #include "internal.h"
27 #include "video.h"
28
29 typedef struct DedotContext {
30 const AVClass *class;
31 int m;
32 float lt;
33 float tl;
34 float tc;
35 float ct;
36
37 const AVPixFmtDescriptor *desc;
38 int depth;
39 int max;
40 int luma2d;
41 int lumaT;
42 int chromaT1;
43 int chromaT2;
44
45 int eof;
46 int eof_frames;
47 int nb_planes;
48 int planewidth[4];
49 int planeheight[4];
50
51 AVFrame *frames[5];
52
53 int (*dedotcrawl)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
54 int (*derainbow)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
55 } DedotContext;
56
57 static const enum AVPixelFormat pixel_fmts[] = {
58 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
59 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
60 AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
61 AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
62 AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
63 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
64 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
65 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
66 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
67 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
68 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
69 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
70 AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
71 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
72 AV_PIX_FMT_NONE
73 };
74
75 #define DEFINE_DEDOTCRAWL(name, type, div) \
76 static int dedotcrawl##name(AVFilterContext *ctx, void *arg, \
77 int jobnr, int nb_jobs) \
78 { \
79 DedotContext *s = ctx->priv; \
80 AVFrame *out = arg; \
81 int src_linesize = s->frames[2]->linesize[0] / div; \
82 int dst_linesize = out->linesize[0] / div; \
83 int p0_linesize = s->frames[0]->linesize[0] / div; \
84 int p1_linesize = s->frames[1]->linesize[0] / div; \
85 int p3_linesize = s->frames[3]->linesize[0] / div; \
86 int p4_linesize = s->frames[4]->linesize[0] / div; \
87 const int h = s->planeheight[0]; \
88 int slice_start = (h * jobnr) / nb_jobs; \
89 int slice_end = (h * (jobnr+1)) / nb_jobs; \
90 type *p0 = (type *)s->frames[0]->data[0]; \
91 type *p1 = (type *)s->frames[1]->data[0]; \
92 type *p3 = (type *)s->frames[3]->data[0]; \
93 type *p4 = (type *)s->frames[4]->data[0]; \
94 type *src = (type *)s->frames[2]->data[0]; \
95 type *dst = (type *)out->data[0]; \
96 const int luma2d = s->luma2d; \
97 const int lumaT = s->lumaT; \
98 \
99 if (!slice_start) { \
100 slice_start++; \
101 } \
102 p0 += p0_linesize * slice_start; \
103 p1 += p1_linesize * slice_start; \
104 p3 += p3_linesize * slice_start; \
105 p4 += p4_linesize * slice_start; \
106 src += src_linesize * slice_start; \
107 dst += dst_linesize * slice_start; \
108 if (slice_end == h) { \
109 slice_end--; \
110 } \
111 for (int y = slice_start; y < slice_end; y++) { \
112 for (int x = 1; x < s->planewidth[0] - 1; x++) { \
113 int above = src[x - src_linesize]; \
114 int below = src[x + src_linesize]; \
115 int cur = src[x]; \
116 int left = src[x - 1]; \
117 int right = src[x + 1]; \
118 \
119 if (FFABS(above + below - 2 * cur) <= luma2d && \
120 FFABS(left + right - 2 * cur) <= luma2d) \
121 continue; \
122 \
123 if (FFABS(cur - p0[x]) <= lumaT && \
124 FFABS(cur - p4[x]) <= lumaT && \
125 FFABS(p1[x] - p3[x]) <= lumaT) { \
126 int diff1 = FFABS(cur - p1[x]); \
127 int diff2 = FFABS(cur - p3[x]); \
128 \
129 if (diff1 < diff2) \
130 dst[x] = (src[x] + p1[x] + 1) >> 1; \
131 else \
132 dst[x] = (src[x] + p3[x] + 1) >> 1; \
133 } \
134 } \
135 \
136 dst += dst_linesize; \
137 src += src_linesize; \
138 p0 += p0_linesize; \
139 p1 += p1_linesize; \
140 p3 += p3_linesize; \
141 p4 += p4_linesize; \
142 } \
143 return 0; \
144 }
145
146 DEFINE_DEDOTCRAWL(8, uint8_t, 1)
147 DEFINE_DEDOTCRAWL(16, uint16_t, 2)
148
149 typedef struct ThreadData {
150 AVFrame *out;
151 int plane;
152 } ThreadData;
153
154 #define DEFINE_DERAINBOW(name, type, div) \
155 static int derainbow##name(AVFilterContext *ctx, void *arg, \
156 int jobnr, int nb_jobs) \
157 { \
158 DedotContext *s = ctx->priv; \
159 ThreadData *td = arg; \
160 AVFrame *out = td->out; \
161 const int plane = td->plane; \
162 const int h = s->planeheight[plane]; \
163 int slice_start = (h * jobnr) / nb_jobs; \
164 int slice_end = (h * (jobnr+1)) / nb_jobs; \
165 int src_linesize = s->frames[2]->linesize[plane] / div; \
166 int dst_linesize = out->linesize[plane] / div; \
167 int p0_linesize = s->frames[0]->linesize[plane] / div; \
168 int p1_linesize = s->frames[1]->linesize[plane] / div; \
169 int p3_linesize = s->frames[3]->linesize[plane] / div; \
170 int p4_linesize = s->frames[4]->linesize[plane] / div; \
171 type *p0 = (type *)s->frames[0]->data[plane]; \
172 type *p1 = (type *)s->frames[1]->data[plane]; \
173 type *p3 = (type *)s->frames[3]->data[plane]; \
174 type *p4 = (type *)s->frames[4]->data[plane]; \
175 type *src = (type *)s->frames[2]->data[plane]; \
176 type *dst = (type *)out->data[plane]; \
177 const int chromaT1 = s->chromaT1; \
178 const int chromaT2 = s->chromaT2; \
179 \
180 p0 += slice_start * p0_linesize; \
181 p1 += slice_start * p1_linesize; \
182 p3 += slice_start * p3_linesize; \
183 p4 += slice_start * p4_linesize; \
184 src += slice_start * src_linesize; \
185 dst += slice_start * dst_linesize; \
186 for (int y = slice_start; y < slice_end; y++) { \
187 for (int x = 0; x < s->planewidth[plane]; x++) { \
188 int cur = src[x]; \
189 \
190 if (FFABS(cur - p0[x]) <= chromaT1 && \
191 FFABS(cur - p4[x]) <= chromaT1 && \
192 FFABS(p1[x] - p3[x]) <= chromaT1 && \
193 FFABS(cur - p1[x]) > chromaT2 && \
194 FFABS(cur - p3[x]) > chromaT2) { \
195 int diff1 = FFABS(cur - p1[x]); \
196 int diff2 = FFABS(cur - p3[x]); \
197 \
198 if (diff1 < diff2) \
199 dst[x] = (src[x] + p1[x] + 1) >> 1; \
200 else \
201 dst[x] = (src[x] + p3[x] + 1) >> 1; \
202 } \
203 } \
204 \
205 dst += dst_linesize; \
206 src += src_linesize; \
207 p0 += p0_linesize; \
208 p1 += p1_linesize; \
209 p3 += p3_linesize; \
210 p4 += p4_linesize; \
211 } \
212 return 0; \
213 }
214
215 DEFINE_DERAINBOW(8, uint8_t, 1)
216 DEFINE_DERAINBOW(16, uint16_t, 2)
217
218 static int config_output(AVFilterLink *outlink)
219 {
220 AVFilterContext *ctx = outlink->src;
221 DedotContext *s = ctx->priv;
222 AVFilterLink *inlink = ctx->inputs[0];
223
224 s->desc = av_pix_fmt_desc_get(outlink->format);
225 if (!s->desc)
226 return AVERROR_BUG;
227 s->nb_planes = av_pix_fmt_count_planes(outlink->format);
228 s->depth = s->desc->comp[0].depth;
229 s->max = (1 << s->depth) - 1;
230 s->luma2d = s->lt * s->max;
231 s->lumaT = s->tl * s->max;
232 s->chromaT1 = s->tc * s->max;
233 s->chromaT2 = s->ct * s->max;
234
235 s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, s->desc->log2_chroma_w);
236 s->planewidth[0] = s->planewidth[3] = inlink->w;
237
238 s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
239 s->planeheight[0] = s->planeheight[3] = inlink->h;
240
241 if (s->depth <= 8) {
242 s->dedotcrawl = dedotcrawl8;
243 s->derainbow = derainbow8;
244 } else {
245 s->dedotcrawl = dedotcrawl16;
246 s->derainbow = derainbow16;
247 }
248
249 return 0;
250 }
251
252 static int activate(AVFilterContext *ctx)
253 {
254 AVFilterLink *inlink = ctx->inputs[0];
255 AVFilterLink *outlink = ctx->outputs[0];
256 DedotContext *s = ctx->priv;
257 AVFrame *frame = NULL;
258 int64_t pts;
259 int status;
260 int ret = 0;
261
262 FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
263
264 if (s->eof == 0) {
265 ret = ff_inlink_consume_frame(inlink, &frame);
266 if (ret < 0)
267 return ret;
268 }
269 if (frame || s->eof_frames > 0) {
270 AVFrame *out = NULL;
271
272 if (frame) {
273 for (int i = 2; i < 5; i++) {
274 if (!s->frames[i])
275 s->frames[i] = av_frame_clone(frame);
276 }
277 av_frame_free(&frame);
278 } else if (s->frames[3]) {
279 s->eof_frames--;
280 s->frames[4] = av_frame_clone(s->frames[3]);
281 }
282
283 if (s->frames[0] &&
284 s->frames[1] &&
285 s->frames[2] &&
286 s->frames[3] &&
287 s->frames[4]) {
288 out = av_frame_clone(s->frames[2]);
289 if (out && !ctx->is_disabled) {
290 ret = ff_inlink_make_frame_writable(inlink, &out);
291 if (ret >= 0) {
292 if (s->m & 1)
293 ff_filter_execute(ctx, s->dedotcrawl, out, NULL,
294 FFMIN(ff_filter_get_nb_threads(ctx),
295 s->planeheight[0]));
296 if (s->m & 2) {
297 ThreadData td;
298 td.out = out; td.plane = 1;
299 ff_filter_execute(ctx, s->derainbow, &td, NULL,
300 FFMIN(ff_filter_get_nb_threads(ctx),
301 s->planeheight[1]));
302 td.plane = 2;
303 ff_filter_execute(ctx, s->derainbow, &td, NULL,
304 FFMIN(ff_filter_get_nb_threads(ctx),
305 s->planeheight[2]));
306 }
307 } else
308 av_frame_free(&out);
309 } else if (!out) {
310 ret = AVERROR(ENOMEM);
311 }
312 }
313
314 av_frame_free(&s->frames[0]);
315 s->frames[0] = s->frames[1];
316 s->frames[1] = s->frames[2];
317 s->frames[2] = s->frames[3];
318 s->frames[3] = s->frames[4];
319 s->frames[4] = NULL;
320
321 if (ret < 0)
322 return ret;
323 if (out)
324 return ff_filter_frame(outlink, out);
325 }
326
327 if (s->eof) {
328 if (s->eof_frames <= 0) {
329 ff_outlink_set_status(outlink, AVERROR_EOF, s->frames[2]->pts);
330 } else {
331 ff_filter_set_ready(ctx, 10);
332 }
333 return 0;
334 }
335
336 if (!s->eof && ff_inlink_acknowledge_status(inlink, &status, &pts)) {
337 if (status == AVERROR_EOF) {
338 s->eof = 1;
339 s->eof_frames = !!s->frames[0] + !!s->frames[1];
340 if (s->eof_frames <= 0) {
341 ff_outlink_set_status(outlink, AVERROR_EOF, pts);
342 return 0;
343 }
344 ff_filter_set_ready(ctx, 10);
345 return 0;
346 }
347 }
348
349 FF_FILTER_FORWARD_WANTED(outlink, inlink);
350
351 return FFERROR_NOT_READY;
352 }
353
354 static av_cold void uninit(AVFilterContext *ctx)
355 {
356 DedotContext *s = ctx->priv;
357
358 for (int i = 0; i < 5; i++)
359 av_frame_free(&s->frames[i]);
360 }
361
362 #define OFFSET(x) offsetof(DedotContext, x)
363 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
364
365 static const AVOption dedot_options[] = {
366 { "m", "set filtering mode", OFFSET( m), AV_OPT_TYPE_FLAGS, {.i64=3}, 0, 3, FLAGS, .unit = "m" },
367 { "dotcrawl", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, .unit = "m" },
368 { "rainbows", 0, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, .unit = "m" },
369 { "lt", "set spatial luma threshold", OFFSET(lt), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
370 { "tl", "set tolerance for temporal luma", OFFSET(tl), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
371 { "tc", "set tolerance for chroma temporal variation", OFFSET(tc), AV_OPT_TYPE_FLOAT, {.dbl=.058}, 0, 1, FLAGS },
372 { "ct", "set temporal chroma threshold", OFFSET(ct), AV_OPT_TYPE_FLOAT, {.dbl=.019}, 0, 1, FLAGS },
373 { NULL },
374 };
375
376 static const AVFilterPad outputs[] = {
377 {
378 .name = "default",
379 .type = AVMEDIA_TYPE_VIDEO,
380 .config_props = config_output,
381 },
382 };
383
384 AVFILTER_DEFINE_CLASS(dedot);
385
386 const AVFilter ff_vf_dedot = {
387 .name = "dedot",
388 .description = NULL_IF_CONFIG_SMALL("Reduce cross-luminance and cross-color."),
389 .priv_size = sizeof(DedotContext),
390 .priv_class = &dedot_class,
391 .activate = activate,
392 .uninit = uninit,
393 FILTER_INPUTS(ff_video_default_filterpad),
394 FILTER_OUTPUTS(outputs),
395 FILTER_PIXFMTS_ARRAY(pixel_fmts),
396 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
397 };
398