1 |
|
|
/* |
2 |
|
|
* Copyright (c) 2020 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/avstring.h" |
22 |
|
|
#include "libavutil/imgutils.h" |
23 |
|
|
#include "libavutil/opt.h" |
24 |
|
|
#include "libavutil/pixdesc.h" |
25 |
|
|
|
26 |
|
|
#include "avfilter.h" |
27 |
|
|
#include "formats.h" |
28 |
|
|
#include "internal.h" |
29 |
|
|
#include "video.h" |
30 |
|
|
|
31 |
|
|
typedef struct ChromaNRContext { |
32 |
|
|
const AVClass *class; |
33 |
|
|
|
34 |
|
|
float threshold; |
35 |
|
|
float threshold_y; |
36 |
|
|
float threshold_u; |
37 |
|
|
float threshold_v; |
38 |
|
|
int thres; |
39 |
|
|
int thres_y; |
40 |
|
|
int thres_u; |
41 |
|
|
int thres_v; |
42 |
|
|
int sizew; |
43 |
|
|
int sizeh; |
44 |
|
|
int stepw; |
45 |
|
|
int steph; |
46 |
|
|
int depth; |
47 |
|
|
int chroma_w; |
48 |
|
|
int chroma_h; |
49 |
|
|
int nb_planes; |
50 |
|
|
int linesize[4]; |
51 |
|
|
int planeheight[4]; |
52 |
|
|
int planewidth[4]; |
53 |
|
|
|
54 |
|
|
AVFrame *out; |
55 |
|
|
int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
56 |
|
|
} ChromaNRContext; |
57 |
|
|
|
58 |
|
|
static int query_formats(AVFilterContext *ctx) |
59 |
|
|
{ |
60 |
|
|
static const enum AVPixelFormat pix_fmts[] = { |
61 |
|
|
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV444P, |
62 |
|
|
AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, |
63 |
|
|
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P, |
64 |
|
|
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, |
65 |
|
|
AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV444P10, |
66 |
|
|
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV440P12, AV_PIX_FMT_YUV420P12, |
67 |
|
|
AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14, |
68 |
|
|
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
69 |
|
|
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, |
70 |
|
|
AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
71 |
|
|
AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, |
72 |
|
|
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
73 |
|
|
AV_PIX_FMT_NONE |
74 |
|
|
}; |
75 |
|
|
|
76 |
|
|
AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
77 |
|
|
if (!fmts_list) |
78 |
|
|
return AVERROR(ENOMEM); |
79 |
|
|
return ff_set_common_formats(ctx, fmts_list); |
80 |
|
|
} |
81 |
|
|
|
82 |
|
|
#define FILTER_FUNC(name, type) \ |
83 |
|
|
static int filter_slice##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
84 |
|
|
{ \ |
85 |
|
|
ChromaNRContext *s = ctx->priv; \ |
86 |
|
|
AVFrame *in = arg; \ |
87 |
|
|
AVFrame *out = s->out; \ |
88 |
|
|
const int in_ylinesize = in->linesize[0]; \ |
89 |
|
|
const int in_ulinesize = in->linesize[1]; \ |
90 |
|
|
const int in_vlinesize = in->linesize[2]; \ |
91 |
|
|
const int out_ulinesize = out->linesize[1]; \ |
92 |
|
|
const int out_vlinesize = out->linesize[2]; \ |
93 |
|
|
const int chroma_w = s->chroma_w; \ |
94 |
|
|
const int chroma_h = s->chroma_h; \ |
95 |
|
|
const int stepw = s->stepw; \ |
96 |
|
|
const int steph = s->steph; \ |
97 |
|
|
const int sizew = s->sizew; \ |
98 |
|
|
const int sizeh = s->sizeh; \ |
99 |
|
|
const int thres = s->thres; \ |
100 |
|
|
const int thres_y = s->thres_y; \ |
101 |
|
|
const int thres_u = s->thres_u; \ |
102 |
|
|
const int thres_v = s->thres_v; \ |
103 |
|
|
const int h = s->planeheight[1]; \ |
104 |
|
|
const int w = s->planewidth[1]; \ |
105 |
|
|
const int slice_start = (h * jobnr) / nb_jobs; \ |
106 |
|
|
const int slice_end = (h * (jobnr+1)) / nb_jobs; \ |
107 |
|
|
type *out_uptr = (type *)(out->data[1] + slice_start * out_ulinesize); \ |
108 |
|
|
type *out_vptr = (type *)(out->data[2] + slice_start * out_vlinesize); \ |
109 |
|
|
\ |
110 |
|
|
{ \ |
111 |
|
|
const int h = s->planeheight[0]; \ |
112 |
|
|
const int slice_start = (h * jobnr) / nb_jobs; \ |
113 |
|
|
const int slice_end = (h * (jobnr+1)) / nb_jobs; \ |
114 |
|
|
\ |
115 |
|
|
av_image_copy_plane(out->data[0] + slice_start * out->linesize[0], \ |
116 |
|
|
out->linesize[0], \ |
117 |
|
|
in->data[0] + slice_start * in->linesize[0], \ |
118 |
|
|
in->linesize[0], \ |
119 |
|
|
s->linesize[0], slice_end - slice_start); \ |
120 |
|
|
\ |
121 |
|
|
if (s->nb_planes == 4) { \ |
122 |
|
|
av_image_copy_plane(out->data[3] + slice_start * out->linesize[3], \ |
123 |
|
|
out->linesize[3], \ |
124 |
|
|
in->data[3] + slice_start * in->linesize[3], \ |
125 |
|
|
in->linesize[3], \ |
126 |
|
|
s->linesize[3], slice_end - slice_start); \ |
127 |
|
|
} \ |
128 |
|
|
} \ |
129 |
|
|
\ |
130 |
|
|
for (int y = slice_start; y < slice_end; y++) { \ |
131 |
|
|
const type *in_yptr = (const type *)(in->data[0] + y * chroma_h * in_ylinesize); \ |
132 |
|
|
const type *in_uptr = (const type *)(in->data[1] + y * in_ulinesize); \ |
133 |
|
|
const type *in_vptr = (const type *)(in->data[2] + y * in_vlinesize); \ |
134 |
|
|
\ |
135 |
|
|
for (int x = 0; x < w; x++) { \ |
136 |
|
|
const int cy = in_yptr[x * chroma_w]; \ |
137 |
|
|
const int cu = in_uptr[x]; \ |
138 |
|
|
const int cv = in_vptr[x]; \ |
139 |
|
|
int su = cu; \ |
140 |
|
|
int sv = cv; \ |
141 |
|
|
int cn = 1; \ |
142 |
|
|
\ |
143 |
|
|
for (int yy = FFMAX(0, y - sizeh); yy < FFMIN(y + sizeh, h); yy += steph) { \ |
144 |
|
|
const type *in_yptr = (const type *)(in->data[0] + yy * chroma_h * in_ylinesize); \ |
145 |
|
|
const type *in_uptr = (const type *)(in->data[1] + yy * in_ulinesize); \ |
146 |
|
|
const type *in_vptr = (const type *)(in->data[2] + yy * in_vlinesize); \ |
147 |
|
|
\ |
148 |
|
|
for (int xx = FFMAX(0, x - sizew); xx < FFMIN(x + sizew, w); xx += stepw) { \ |
149 |
|
|
const int Y = in_yptr[xx * chroma_w]; \ |
150 |
|
|
const int U = in_uptr[xx]; \ |
151 |
|
|
const int V = in_vptr[xx]; \ |
152 |
|
|
\ |
153 |
|
|
if (FFABS(cu - U) + FFABS(cv - V) + FFABS(cy - Y) < thres && \ |
154 |
|
|
FFABS(cu - U) < thres_u && FFABS(cv - V) < thres_v && \ |
155 |
|
|
FFABS(cy - Y) < thres_y && \ |
156 |
|
|
xx != x && yy != y) { \ |
157 |
|
|
su += U; \ |
158 |
|
|
sv += V; \ |
159 |
|
|
cn++; \ |
160 |
|
|
} \ |
161 |
|
|
} \ |
162 |
|
|
} \ |
163 |
|
|
\ |
164 |
|
|
out_uptr[x] = su / cn; \ |
165 |
|
|
out_vptr[x] = sv / cn; \ |
166 |
|
|
} \ |
167 |
|
|
\ |
168 |
|
|
out_uptr += out_ulinesize / sizeof(type); \ |
169 |
|
|
out_vptr += out_vlinesize / sizeof(type); \ |
170 |
|
|
} \ |
171 |
|
|
\ |
172 |
|
|
return 0; \ |
173 |
|
|
} |
174 |
|
|
|
175 |
|
|
FILTER_FUNC(8, uint8_t) |
176 |
|
|
FILTER_FUNC(16, uint16_t) |
177 |
|
|
|
178 |
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
179 |
|
|
{ |
180 |
|
|
AVFilterContext *ctx = inlink->dst; |
181 |
|
|
AVFilterLink *outlink = ctx->outputs[0]; |
182 |
|
|
ChromaNRContext *s = ctx->priv; |
183 |
|
|
AVFrame *out; |
184 |
|
|
|
185 |
|
|
s->thres = s->threshold * (1 << (s->depth - 8)); |
186 |
|
|
s->thres_y = s->threshold_y * (1 << (s->depth - 8)); |
187 |
|
|
s->thres_u = s->threshold_u * (1 << (s->depth - 8)); |
188 |
|
|
s->thres_v = s->threshold_v * (1 << (s->depth - 8)); |
189 |
|
|
|
190 |
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
191 |
|
|
if (!out) { |
192 |
|
|
av_frame_free(&in); |
193 |
|
|
return AVERROR(ENOMEM); |
194 |
|
|
} |
195 |
|
|
|
196 |
|
|
av_frame_copy_props(out, in); |
197 |
|
|
s->out = out; |
198 |
|
|
ctx->internal->execute(ctx, s->filter_slice, in, NULL, |
199 |
|
|
FFMIN3(s->planeheight[1], |
200 |
|
|
s->planeheight[2], |
201 |
|
|
ff_filter_get_nb_threads(ctx))); |
202 |
|
|
|
203 |
|
|
av_frame_free(&in); |
204 |
|
|
return ff_filter_frame(outlink, out); |
205 |
|
|
} |
206 |
|
|
|
207 |
|
|
static int config_input(AVFilterLink *inlink) |
208 |
|
|
{ |
209 |
|
|
AVFilterContext *ctx = inlink->dst; |
210 |
|
|
ChromaNRContext *s = ctx->priv; |
211 |
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
212 |
|
|
int ret; |
213 |
|
|
|
214 |
|
|
s->nb_planes = desc->nb_components; |
215 |
|
|
s->depth = desc->comp[0].depth; |
216 |
|
|
s->filter_slice = s->depth <= 8 ? filter_slice8 : filter_slice16; |
217 |
|
|
s->chroma_w = 1 << desc->log2_chroma_w; |
218 |
|
|
s->chroma_h = 1 << desc->log2_chroma_h; |
219 |
|
|
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); |
220 |
|
|
s->planeheight[0] = s->planeheight[3] = inlink->h; |
221 |
|
|
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); |
222 |
|
|
s->planewidth[0] = s->planewidth[3] = inlink->w; |
223 |
|
|
|
224 |
|
|
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0) |
225 |
|
|
return ret; |
226 |
|
|
|
227 |
|
|
return 0; |
228 |
|
|
} |
229 |
|
|
|
230 |
|
|
#define OFFSET(x) offsetof(ChromaNRContext, x) |
231 |
|
|
#define VF AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM |
232 |
|
|
|
233 |
|
|
static const AVOption chromanr_options[] = { |
234 |
|
|
{ "thres", "set y+u+v threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=30}, 1, 200, VF }, |
235 |
|
|
{ "sizew", "set horizontal size", OFFSET(sizew), AV_OPT_TYPE_INT, {.i64=5}, 1, 100, VF }, |
236 |
|
|
{ "sizeh", "set vertical size", OFFSET(sizeh), AV_OPT_TYPE_INT, {.i64=5}, 1, 100, VF }, |
237 |
|
|
{ "stepw", "set horizontal step", OFFSET(stepw), AV_OPT_TYPE_INT, {.i64=1}, 1, 50, VF }, |
238 |
|
|
{ "steph", "set vertical step", OFFSET(steph), AV_OPT_TYPE_INT, {.i64=1}, 1, 50, VF }, |
239 |
|
|
{ "threy", "set y threshold", OFFSET(threshold_y), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF }, |
240 |
|
|
{ "threu", "set u threshold", OFFSET(threshold_u), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF }, |
241 |
|
|
{ "threv", "set v threshold", OFFSET(threshold_v), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF }, |
242 |
|
|
{ NULL } |
243 |
|
|
}; |
244 |
|
|
|
245 |
|
|
static const AVFilterPad inputs[] = { |
246 |
|
|
{ |
247 |
|
|
.name = "default", |
248 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
249 |
|
|
.filter_frame = filter_frame, |
250 |
|
|
.config_props = config_input, |
251 |
|
|
}, |
252 |
|
|
{ NULL } |
253 |
|
|
}; |
254 |
|
|
|
255 |
|
|
static const AVFilterPad outputs[] = { |
256 |
|
|
{ |
257 |
|
|
.name = "default", |
258 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
259 |
|
|
}, |
260 |
|
|
{ NULL } |
261 |
|
|
}; |
262 |
|
|
|
263 |
|
|
AVFILTER_DEFINE_CLASS(chromanr); |
264 |
|
|
|
265 |
|
|
AVFilter ff_vf_chromanr = { |
266 |
|
|
.name = "chromanr", |
267 |
|
|
.description = NULL_IF_CONFIG_SMALL("Reduce chrominance noise."), |
268 |
|
|
.priv_size = sizeof(ChromaNRContext), |
269 |
|
|
.priv_class = &chromanr_class, |
270 |
|
|
.query_formats = query_formats, |
271 |
|
|
.outputs = outputs, |
272 |
|
|
.inputs = inputs, |
273 |
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
274 |
|
|
.process_command = ff_filter_process_command, |
275 |
|
|
}; |