FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_hqdn3d.c
Date: 2024-04-19 07:31:02
Exec Total Coverage
Lines: 117 148 79.1%
Functions: 10 12 83.3%
Branches: 60 135 44.4%

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1 /*
2 * Copyright (c) 2003 Daniel Moreno <comac AT comac DOT darktech DOT org>
3 * Copyright (c) 2010 Baptiste Coudurier
4 * Copyright (c) 2012 Loren Merritt
5 *
6 * This file is part of FFmpeg, ported from MPlayer.
7 *
8 * FFmpeg is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 */
22
23 /**
24 * @file
25 * high quality 3d video denoiser, ported from MPlayer
26 * libmpcodecs/vf_hqdn3d.c.
27 */
28
29 #include <float.h>
30
31 #include "config.h"
32 #include "libavutil/attributes.h"
33 #include "libavutil/common.h"
34 #include "libavutil/emms.h"
35 #include "libavutil/mem.h"
36 #include "libavutil/pixdesc.h"
37 #include "libavutil/intreadwrite.h"
38 #include "libavutil/opt.h"
39
40 #include "avfilter.h"
41 #include "internal.h"
42 #include "video.h"
43 #include "vf_hqdn3d.h"
44
45 #define LUT_BITS (depth==16 ? 8 : 4)
46 #define LOAD(x) (((depth == 8 ? src[x] : AV_RN16A(src + (x) * 2)) << (16 - depth))\
47 + (((1 << (16 - depth)) - 1) >> 1))
48 #define STORE(x,val) (depth == 8 ? dst[x] = (val) >> (16 - depth) : \
49 AV_WN16A(dst + (x) * 2, (val) >> (16 - depth)))
50
51 av_always_inline
52 163840 static uint32_t lowpass(int prev, int cur, int16_t *coef, int depth)
53 {
54
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163840 int d = (prev - cur) >> (8 - LUT_BITS);
55 163840 return cur + coef[d];
56 }
57
58 av_always_inline
59 static void denoise_temporal(uint8_t *src, uint8_t *dst,
60 uint16_t *frame_ant,
61 int w, int h, int sstride, int dstride,
62 int16_t *temporal, int depth)
63 {
64 long x, y;
65 uint32_t tmp;
66
67 temporal += 256 << LUT_BITS;
68
69 for (y = 0; y < h; y++) {
70 for (x = 0; x < w; x++) {
71 frame_ant[x] = tmp = lowpass(frame_ant[x], LOAD(x), temporal, depth);
72 STORE(x, tmp);
73 }
74 src += sstride;
75 dst += dstride;
76 frame_ant += w;
77 }
78 }
79
80 av_always_inline
81 369 static void denoise_spatial(HQDN3DContext *s,
82 uint8_t *src, uint8_t *dst,
83 uint16_t *line_ant, uint16_t *frame_ant,
84 int w, int h, int sstride, int dstride,
85 int16_t *spatial, int16_t *temporal, int depth)
86 {
87 long x, y;
88 uint32_t pixel_ant;
89 uint32_t tmp;
90
91
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369 spatial += 256 << LUT_BITS;
92
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369 temporal += 256 << LUT_BITS;
93
94 /* First line has no top neighbor. Only left one for each tmp and
95 * last frame */
96
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369 pixel_ant = LOAD(0);
97
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82289 for (x = 0; x < w; x++) {
98
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81920 line_ant[x] = tmp = pixel_ant = lowpass(pixel_ant, LOAD(x), spatial, depth);
99 81920 frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth);
100
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81920 STORE(x, tmp);
101 }
102
103
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63840 for (y = 1; y < h; y++) {
104 63471 src += sstride;
105 63471 dst += dstride;
106 63471 frame_ant += w;
107
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63471 if (s->denoise_row[depth]) {
108 63471 s->denoise_row[depth](src, dst, line_ant, frame_ant, w, spatial, temporal);
109 63471 continue;
110 }
111 pixel_ant = LOAD(0);
112 for (x = 0; x < w-1; x++) {
113 line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial, depth);
114 pixel_ant = lowpass(pixel_ant, LOAD(x+1), spatial, depth);
115 frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth);
116 STORE(x, tmp);
117 }
118 line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial, depth);
119 frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth);
120 STORE(x, tmp);
121 }
122 369 }
123
124 av_always_inline
125 369 static int denoise_depth(HQDN3DContext *s,
126 uint8_t *src, uint8_t *dst,
127 uint16_t *line_ant, uint16_t **frame_ant_ptr,
128 int w, int h, int sstride, int dstride,
129 int16_t *spatial, int16_t *temporal, int depth)
130 {
131 // FIXME: For 16-bit depth, frame_ant could be a pointer to the previous
132 // filtered frame rather than a separate buffer.
133 long x, y;
134 369 uint16_t *frame_ant = *frame_ant_ptr;
135
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369 if (!frame_ant) {
136 6 uint8_t *frame_src = src;
137 6 *frame_ant_ptr = frame_ant = av_malloc_array(w, h*sizeof(uint16_t));
138
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6 if (!frame_ant)
139 return AVERROR(ENOMEM);
140
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1062 for (y = 0; y < h; y++, src += sstride, frame_ant += w)
141
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268320 for (x = 0; x < w; x++)
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267264 frame_ant[x] = LOAD(x);
143 6 src = frame_src;
144 6 frame_ant = *frame_ant_ptr;
145 }
146
147
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369 if (spatial[0])
148 369 denoise_spatial(s, src, dst, line_ant, frame_ant,
149 w, h, sstride, dstride, spatial, temporal, depth);
150 else
151 denoise_temporal(src, dst, frame_ant,
152 w, h, sstride, dstride, temporal, depth);
153 369 emms_c();
154 369 return 0;
155 }
156
157 #define denoise(...) \
158 do { \
159 int ret = AVERROR_BUG; \
160 switch (s->depth) { \
161 case 8: ret = denoise_depth(__VA_ARGS__, 8); break; \
162 case 9: ret = denoise_depth(__VA_ARGS__, 9); break; \
163 case 10: ret = denoise_depth(__VA_ARGS__, 10); break; \
164 case 12: ret = denoise_depth(__VA_ARGS__, 12); break; \
165 case 14: ret = denoise_depth(__VA_ARGS__, 14); break; \
166 case 16: ret = denoise_depth(__VA_ARGS__, 16); break; \
167 } \
168 if (ret < 0) { \
169 av_frame_free(&out); \
170 if (!direct) \
171 av_frame_free(&in); \
172 return ret; \
173 } \
174 } while (0)
175
176 8 static void precalc_coefs(double dist25, int depth, int16_t *ct)
177 {
178 int i;
179 double gamma, simil, C;
180
181
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8 gamma = log(0.25) / log(1.0 - FFMIN(dist25,252.0)/255.0 - 0.00001);
182
183
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65544 for (i = -(256<<LUT_BITS); i < 256<<LUT_BITS; i++) {
184
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65536 double f = (i * (1 << (9-LUT_BITS)) + (1<<(8-LUT_BITS)) - 1) / 512.0; // midpoint of the bin
185
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65536 simil = FFMAX(0, 1.0 - fabs(f) / 255.0);
186 65536 C = pow(simil, gamma) * 256.0 * f;
187
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65536 ct[(256<<LUT_BITS)+i] = lrint(C);
188 }
189
190 8 ct[0] = !!dist25;
191 8 }
192
193 #define PARAM1_DEFAULT 4.0
194 #define PARAM2_DEFAULT 3.0
195 #define PARAM3_DEFAULT 6.0
196
197 4 static av_cold int init(AVFilterContext *ctx)
198 {
199 4 HQDN3DContext *s = ctx->priv;
200
201
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4 if (!s->strength[LUMA_SPATIAL])
202 4 s->strength[LUMA_SPATIAL] = PARAM1_DEFAULT;
203
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4 if (!s->strength[CHROMA_SPATIAL])
204 4 s->strength[CHROMA_SPATIAL] = PARAM2_DEFAULT * s->strength[LUMA_SPATIAL] / PARAM1_DEFAULT;
205
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4 if (!s->strength[LUMA_TMP])
206 4 s->strength[LUMA_TMP] = PARAM3_DEFAULT * s->strength[LUMA_SPATIAL] / PARAM1_DEFAULT;
207
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4 if (!s->strength[CHROMA_TMP])
208 4 s->strength[CHROMA_TMP] = s->strength[LUMA_TMP] * s->strength[CHROMA_SPATIAL] / s->strength[LUMA_SPATIAL];
209
210 4 av_log(ctx, AV_LOG_VERBOSE, "ls:%f cs:%f lt:%f ct:%f\n",
211 s->strength[LUMA_SPATIAL], s->strength[CHROMA_SPATIAL],
212 s->strength[LUMA_TMP], s->strength[CHROMA_TMP]);
213
214 4 return 0;
215 }
216
217 6 static av_cold void uninit(AVFilterContext *ctx)
218 {
219 6 HQDN3DContext *s = ctx->priv;
220
221 6 av_freep(&s->coefs[0]);
222 6 av_freep(&s->coefs[1]);
223 6 av_freep(&s->coefs[2]);
224 6 av_freep(&s->coefs[3]);
225 6 av_freep(&s->line[0]);
226 6 av_freep(&s->line[1]);
227 6 av_freep(&s->line[2]);
228 6 av_freep(&s->frame_prev[0]);
229 6 av_freep(&s->frame_prev[1]);
230 6 av_freep(&s->frame_prev[2]);
231 6 }
232
233 static const enum AVPixelFormat pix_fmts[] = {
234 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
235 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV440P,
236 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
237 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
238 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
239 AV_PIX_FMT_YUV440P10,
240 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
241 AV_PIX_FMT_YUV440P12,
242 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
243 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
244 AV_PIX_FMT_NONE
245 };
246
247 2 static void calc_coefs(AVFilterContext *ctx)
248 {
249 2 HQDN3DContext *s = ctx->priv;
250
251
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10 for (int i = 0; i < 4; i++)
252 8 precalc_coefs(s->strength[i], s->depth, s->coefs[i]);
253 2 }
254
255 2 static int config_input(AVFilterLink *inlink)
256 {
257 2 AVFilterContext *ctx = inlink->dst;
258 2 HQDN3DContext *s = inlink->dst->priv;
259 2 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
260 int i, depth;
261
262 2 uninit(inlink->dst);
263
264 2 s->hsub = desc->log2_chroma_w;
265 2 s->vsub = desc->log2_chroma_h;
266 2 s->depth = depth = desc->comp[0].depth;
267
268
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8 for (i = 0; i < 3; i++) {
269 6 s->line[i] = av_malloc_array(inlink->w, sizeof(*s->line[i]));
270
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6 if (!s->line[i])
271 return AVERROR(ENOMEM);
272 }
273
274
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10 for (i = 0; i < 4; i++) {
275
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8 s->coefs[i] = av_malloc((512<<LUT_BITS) * sizeof(int16_t));
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8 if (!s->coefs[i])
277 return AVERROR(ENOMEM);
278 }
279
280 2 calc_coefs(ctx);
281
282 #if ARCH_X86
283 2 ff_hqdn3d_init_x86(s);
284 #endif
285
286 2 return 0;
287 }
288
289 typedef struct ThreadData {
290 AVFrame *in, *out;
291 int direct;
292 } ThreadData;
293
294 369 static int do_denoise(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
295 {
296 369 HQDN3DContext *s = ctx->priv;
297 369 const ThreadData *td = data;
298 369 AVFrame *out = td->out;
299 369 AVFrame *in = td->in;
300 369 int direct = td->direct;
301
302
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369 denoise(s, in->data[job_nr], out->data[job_nr],
303 s->line[job_nr], &s->frame_prev[job_nr],
304 AV_CEIL_RSHIFT(in->width, (!!job_nr * s->hsub)),
305 AV_CEIL_RSHIFT(in->height, (!!job_nr * s->vsub)),
306 in->linesize[job_nr], out->linesize[job_nr],
307 s->coefs[job_nr ? CHROMA_SPATIAL : LUMA_SPATIAL],
308 s->coefs[job_nr ? CHROMA_TMP : LUMA_TMP]);
309
310 369 return 0;
311 }
312
313 123 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
314 {
315 123 AVFilterContext *ctx = inlink->dst;
316 123 AVFilterLink *outlink = ctx->outputs[0];
317
318 AVFrame *out;
319
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123 int direct = av_frame_is_writable(in) && !ctx->is_disabled;
320 ThreadData td;
321
322
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123 if (direct) {
323 87 out = in;
324 } else {
325 36 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
326
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36 if (!out) {
327 av_frame_free(&in);
328 return AVERROR(ENOMEM);
329 }
330
331 36 av_frame_copy_props(out, in);
332 }
333
334 123 td.in = in;
335 123 td.out = out;
336 123 td.direct = direct;
337 /* one thread per plane */
338 123 ff_filter_execute(ctx, do_denoise, &td, NULL, 3);
339
340
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123 if (ctx->is_disabled) {
341 10 av_frame_free(&out);
342 10 return ff_filter_frame(outlink, in);
343 }
344
345
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113 if (!direct)
346 26 av_frame_free(&in);
347
348 113 return ff_filter_frame(outlink, out);
349 }
350
351 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
352 char *res, int res_len, int flags)
353 {
354 int ret;
355
356 ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
357 if (ret < 0)
358 return ret;
359
360 calc_coefs(ctx);
361
362 return 0;
363 }
364
365 #define OFFSET(x) offsetof(HQDN3DContext, x)
366 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
367 static const AVOption hqdn3d_options[] = {
368 { "luma_spatial", "spatial luma strength", OFFSET(strength[LUMA_SPATIAL]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
369 { "chroma_spatial", "spatial chroma strength", OFFSET(strength[CHROMA_SPATIAL]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
370 { "luma_tmp", "temporal luma strength", OFFSET(strength[LUMA_TMP]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
371 { "chroma_tmp", "temporal chroma strength", OFFSET(strength[CHROMA_TMP]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
372 { NULL }
373 };
374
375 AVFILTER_DEFINE_CLASS(hqdn3d);
376
377 static const AVFilterPad avfilter_vf_hqdn3d_inputs[] = {
378 {
379 .name = "default",
380 .type = AVMEDIA_TYPE_VIDEO,
381 .config_props = config_input,
382 .filter_frame = filter_frame,
383 },
384 };
385
386
387 const AVFilter ff_vf_hqdn3d = {
388 .name = "hqdn3d",
389 .description = NULL_IF_CONFIG_SMALL("Apply a High Quality 3D Denoiser."),
390 .priv_size = sizeof(HQDN3DContext),
391 .priv_class = &hqdn3d_class,
392 .init = init,
393 .uninit = uninit,
394 FILTER_INPUTS(avfilter_vf_hqdn3d_inputs),
395 FILTER_OUTPUTS(ff_video_default_filterpad),
396 FILTER_PIXFMTS_ARRAY(pix_fmts),
397 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
398 .process_command = process_command,
399 };
400