FFmpeg
vf_chromanr.c
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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/imgutils.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/pixdesc.h"
24 
25 #include "avfilter.h"
26 #include "internal.h"
27 #include "video.h"
28 
29 typedef struct ChromaNRContext {
30  const AVClass *class;
31 
32  float threshold;
33  float threshold_y;
34  float threshold_u;
35  float threshold_v;
36  int distance;
37  int thres;
38  int thres_y;
39  int thres_u;
40  int thres_v;
41  int sizew;
42  int sizeh;
43  int stepw;
44  int steph;
45  int depth;
46  int chroma_w;
47  int chroma_h;
48  int nb_planes;
49  int linesize[4];
50  int planeheight[4];
51  int planewidth[4];
52 
54  int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
56 
57 static const enum AVPixelFormat pix_fmts[] = {
71 };
72 
73 #define MANHATTAN_DISTANCE(x, y, z) ((x) + (y) + (z))
74 #define EUCLIDEAN_DISTANCE(x, y, z) (sqrtf((x)*(x) + (y)*(y) + (z)*(z)))
75 
76 #define FILTER_FUNC(distance, name, ctype, type, fun, extra) \
77 static int distance ## _slice##name(AVFilterContext *ctx, void *arg, \
78  int jobnr, int nb_jobs) \
79 { \
80  ChromaNRContext *s = ctx->priv; \
81  AVFrame *in = arg; \
82  AVFrame *out = s->out; \
83  const int in_ylinesize = in->linesize[0]; \
84  const int in_ulinesize = in->linesize[1]; \
85  const int in_vlinesize = in->linesize[2]; \
86  const int out_ulinesize = out->linesize[1]; \
87  const int out_vlinesize = out->linesize[2]; \
88  const int chroma_w = s->chroma_w; \
89  const int chroma_h = s->chroma_h; \
90  const int stepw = s->stepw; \
91  const int steph = s->steph; \
92  const int sizew = s->sizew; \
93  const int sizeh = s->sizeh; \
94  const int thres = s->thres; \
95  const int thres_y = s->thres_y; \
96  const int thres_u = s->thres_u; \
97  const int thres_v = s->thres_v; \
98  const int h = s->planeheight[1]; \
99  const int w = s->planewidth[1]; \
100  const int slice_start = (h * jobnr) / nb_jobs; \
101  const int slice_end = (h * (jobnr+1)) / nb_jobs; \
102  type *out_uptr = (type *)(out->data[1] + slice_start * out_ulinesize); \
103  type *out_vptr = (type *)(out->data[2] + slice_start * out_vlinesize); \
104  \
105  { \
106  const int h = s->planeheight[0]; \
107  const int slice_start = (h * jobnr) / nb_jobs; \
108  const int slice_end = (h * (jobnr+1)) / nb_jobs; \
109  \
110  av_image_copy_plane(out->data[0] + slice_start * out->linesize[0], \
111  out->linesize[0], \
112  in->data[0] + slice_start * in->linesize[0], \
113  in->linesize[0], \
114  s->linesize[0], slice_end - slice_start); \
115  \
116  if (s->nb_planes == 4) { \
117  av_image_copy_plane(out->data[3] + slice_start * out->linesize[3], \
118  out->linesize[3], \
119  in->data[3] + slice_start * in->linesize[3], \
120  in->linesize[3], \
121  s->linesize[3], slice_end - slice_start); \
122  } \
123  } \
124  \
125  for (int y = slice_start; y < slice_end; y++) { \
126  const type *in_yptr = (const type *)(in->data[0] + y * chroma_h * in_ylinesize); \
127  const type *in_uptr = (const type *)(in->data[1] + y * in_ulinesize); \
128  const type *in_vptr = (const type *)(in->data[2] + y * in_vlinesize); \
129  const int yystart = FFMAX(0, y - sizeh); \
130  const int yystop = FFMIN(h - 1, y + sizeh); \
131  \
132  for (int x = 0; x < w; x++) { \
133  const int xxstart = FFMAX(0, x - sizew); \
134  const int xxstop = FFMIN(w - 1, x + sizew); \
135  const int cy = in_yptr[x * chroma_w]; \
136  const int cu = in_uptr[x]; \
137  const int cv = in_vptr[x]; \
138  int su = cu; \
139  int sv = cv; \
140  int cn = 1; \
141  \
142  for (int yy = yystart; yy <= yystop; yy += steph) { \
143  const type *in_yptr = (const type *)(in->data[0] + yy * chroma_h * in_ylinesize); \
144  const type *in_uptr = (const type *)(in->data[1] + yy * in_ulinesize); \
145  const type *in_vptr = (const type *)(in->data[2] + yy * in_vlinesize); \
146  \
147  for (int xx = xxstart; xx <= xxstop; xx += stepw) { \
148  const ctype Y = in_yptr[xx * chroma_w]; \
149  const ctype U = in_uptr[xx]; \
150  const ctype V = in_vptr[xx]; \
151  const ctype cyY = FFABS(cy - Y); \
152  const ctype cuU = FFABS(cu - U); \
153  const ctype cvV = FFABS(cv - V); \
154  \
155  if (extra && fun(cyY, cuU, cvV) < thres && \
156  cuU < thres_u && cvV < thres_v && \
157  cyY < thres_y) { \
158  su += U; \
159  sv += V; \
160  cn++; \
161  } else if (!extra && fun(cyY, cuU, cvV) < thres) { \
162  su += U; \
163  sv += V; \
164  cn++; \
165  } \
166  } \
167  } \
168  \
169  out_uptr[x] = (su + (cn >> 1)) / cn; \
170  out_vptr[x] = (sv + (cn >> 1)) / cn; \
171  } \
172  \
173  out_uptr += out_ulinesize / sizeof(type); \
174  out_vptr += out_vlinesize / sizeof(type); \
175  } \
176  \
177  return 0; \
178 }
179 
180 FILTER_FUNC(manhattan, 8, int, uint8_t, MANHATTAN_DISTANCE, 0)
181 FILTER_FUNC(manhattan, 16, int, uint16_t, MANHATTAN_DISTANCE, 0)
182 
183 FILTER_FUNC(euclidean, 8, int, uint8_t, EUCLIDEAN_DISTANCE, 0)
184 FILTER_FUNC(euclidean, 16, int64_t, uint16_t, EUCLIDEAN_DISTANCE, 0)
185 
186 FILTER_FUNC(manhattan_e, 8, int, uint8_t, MANHATTAN_DISTANCE, 1)
187 FILTER_FUNC(manhattan_e, 16, int, uint16_t, MANHATTAN_DISTANCE, 1)
188 
189 FILTER_FUNC(euclidean_e, 8, int, uint8_t, EUCLIDEAN_DISTANCE, 1)
190 FILTER_FUNC(euclidean_e, 16, int64_t, uint16_t, EUCLIDEAN_DISTANCE, 1)
191 
193 {
194  AVFilterContext *ctx = inlink->dst;
195  AVFilterLink *outlink = ctx->outputs[0];
196  ChromaNRContext *s = ctx->priv;
197  AVFrame *out;
198 
199  switch (s->distance) {
200  case 0:
201  s->filter_slice = s->depth <= 8 ? manhattan_slice8 : manhattan_slice16;
202  break;
203  case 1:
204  s->filter_slice = s->depth <= 8 ? euclidean_slice8 : euclidean_slice16;
205  break;
206  }
207 
208  s->thres = s->threshold * (1 << (s->depth - 8));
209  s->thres_y = s->threshold_y * (1 << (s->depth - 8));
210  s->thres_u = s->threshold_u * (1 << (s->depth - 8));
211  s->thres_v = s->threshold_v * (1 << (s->depth - 8));
212 
213  if (s->threshold_y < 200.f || s->threshold_u < 200.f || s->threshold_v < 200.f) {
214  switch (s->distance) {
215  case 0:
216  s->filter_slice = s->depth <= 8 ? manhattan_e_slice8 : manhattan_e_slice16;
217  break;
218  case 1:
219  s->filter_slice = s->depth <= 8 ? euclidean_e_slice8 : euclidean_e_slice16;
220  break;
221  }
222  }
223 
224  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
225  if (!out) {
226  av_frame_free(&in);
227  return AVERROR(ENOMEM);
228  }
229 
231  s->out = out;
232  ff_filter_execute(ctx, s->filter_slice, in, NULL,
233  FFMIN3(s->planeheight[1],
234  s->planeheight[2],
236 
237  av_frame_free(&in);
238  return ff_filter_frame(outlink, out);
239 }
240 
242 {
243  AVFilterContext *ctx = inlink->dst;
244  ChromaNRContext *s = ctx->priv;
246  int ret;
247 
248  s->nb_planes = desc->nb_components;
249  s->depth = desc->comp[0].depth;
250  s->chroma_w = 1 << desc->log2_chroma_w;
251  s->chroma_h = 1 << desc->log2_chroma_h;
252  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
253  s->planeheight[0] = s->planeheight[3] = inlink->h;
254  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
255  s->planewidth[0] = s->planewidth[3] = inlink->w;
256 
257  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
258  return ret;
259 
260  return 0;
261 }
262 
263 #define OFFSET(x) offsetof(ChromaNRContext, x)
264 #define VF AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
265 
266 static const AVOption chromanr_options[] = {
267  { "thres", "set y+u+v threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=30}, 1, 200, VF },
268  { "sizew", "set horizontal patch size", OFFSET(sizew), AV_OPT_TYPE_INT, {.i64=5}, 1, 100, VF },
269  { "sizeh", "set vertical patch size", OFFSET(sizeh), AV_OPT_TYPE_INT, {.i64=5}, 1, 100, VF },
270  { "stepw", "set horizontal step", OFFSET(stepw), AV_OPT_TYPE_INT, {.i64=1}, 1, 50, VF },
271  { "steph", "set vertical step", OFFSET(steph), AV_OPT_TYPE_INT, {.i64=1}, 1, 50, VF },
272  { "threy", "set y threshold", OFFSET(threshold_y), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF },
273  { "threu", "set u threshold", OFFSET(threshold_u), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF },
274  { "threv", "set v threshold", OFFSET(threshold_v), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF },
275  { "distance", "set distance type", OFFSET(distance), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, VF, .unit = "distance" },
276  { "manhattan", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, VF, .unit = "distance" },
277  { "euclidean", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, VF, .unit = "distance" },
278  { NULL }
279 };
280 
281 static const AVFilterPad inputs[] = {
282  {
283  .name = "default",
284  .type = AVMEDIA_TYPE_VIDEO,
285  .filter_frame = filter_frame,
286  .config_props = config_input,
287  },
288 };
289 
290 AVFILTER_DEFINE_CLASS(chromanr);
291 
293  .name = "chromanr",
294  .description = NULL_IF_CONFIG_SMALL("Reduce chrominance noise."),
295  .priv_size = sizeof(ChromaNRContext),
296  .priv_class = &chromanr_class,
301  .process_command = ff_filter_process_command,
302 };
chromanr_options
static const AVOption chromanr_options[]
Definition: vf_chromanr.c:266
ChromaNRContext::thres_y
int thres_y
Definition: vf_chromanr.c:38
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:112
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
MANHATTAN_DISTANCE
#define MANHATTAN_DISTANCE(x, y, z)
Definition: vf_chromanr.c:73
opt.h
ChromaNRContext::distance
int distance
Definition: vf_chromanr.c:36
out
FILE * out
Definition: movenc.c:55
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2965
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:160
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:521
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:516
AVOption
AVOption.
Definition: opt.h:346
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:478
FILTER_FUNC
#define FILTER_FUNC(distance, name, ctype, type, fun, extra)
Definition: vf_chromanr.c:76
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
ChromaNRContext::steph
int steph
Definition: vf_chromanr.c:44
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_chromanr.c:192
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
ff_vf_chromanr
const AVFilter ff_vf_chromanr
Definition: vf_chromanr.c:292
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
ChromaNRContext::threshold_v
float threshold_v
Definition: vf_chromanr.c:35
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_chromanr.c:57
EUCLIDEAN_DISTANCE
#define EUCLIDEAN_DISTANCE(x, y, z)
Definition: vf_chromanr.c:74
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
ChromaNRContext::threshold
float threshold
Definition: vf_chromanr.c:32
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:283
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
ChromaNRContext::linesize
int linesize[4]
Definition: vf_chromanr.c:49
ff_video_default_filterpad
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
Definition: video.c:37
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:86
av_image_fill_linesizes
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:89
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:59
ChromaNRContext::planewidth
int planewidth[4]
Definition: vf_chromanr.c:51
VF
#define VF
Definition: vf_chromanr.c:264
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_chromanr.c:241
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:520
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
ctx
AVFormatContext * ctx
Definition: movenc.c:49
ChromaNRContext::filter_slice
int(* filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_chromanr.c:54
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:73
ChromaNRContext::depth
int depth
Definition: vf_chromanr.c:45
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:87
arg
const char * arg
Definition: jacosubdec.c:67
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:709
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:85
ChromaNRContext::out
AVFrame * out
Definition: vf_chromanr.c:53
ChromaNRContext::nb_planes
int nb_planes
Definition: vf_chromanr.c:48
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:480
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:94
inputs
static const AVFilterPad inputs[]
Definition: vf_chromanr.c:281
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:887
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:174
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
ChromaNRContext::thres
int thres
Definition: vf_chromanr.c:37
internal.h
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:147
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:238
FFMIN3
#define FFMIN3(a, b, c)
Definition: macros.h:50
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:827
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:107
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
ChromaNRContext::threshold_u
float threshold_u
Definition: vf_chromanr.c:34
AVFilter
Filter definition.
Definition: avfilter.h:166
ret
ret
Definition: filter_design.txt:187
ChromaNRContext
Definition: vf_chromanr.c:29
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:515
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
ChromaNRContext::planeheight
int planeheight[4]
Definition: vf_chromanr.c:50
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:519
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:235
OFFSET
#define OFFSET(x)
Definition: vf_chromanr.c:263
avfilter.h
ChromaNRContext::sizew
int sizew
Definition: vf_chromanr.c:41
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(chromanr)
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:78
ChromaNRContext::sizeh
int sizeh
Definition: vf_chromanr.c:42
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
desc
const char * desc
Definition: libsvtav1.c:75
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
distance
static float distance(float x, float y, int band)
Definition: nellymoserenc.c:231
imgutils.h
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:484
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:134
int
int
Definition: ffmpeg_filter.c:424
ChromaNRContext::stepw
int stepw
Definition: vf_chromanr.c:43
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:244
ChromaNRContext::thres_u
int thres_u
Definition: vf_chromanr.c:39
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:486
ChromaNRContext::threshold_y
float threshold_y
Definition: vf_chromanr.c:33
ChromaNRContext::chroma_h
int chroma_h
Definition: vf_chromanr.c:47
ChromaNRContext::thres_v
int thres_v
Definition: vf_chromanr.c:40
ChromaNRContext::chroma_w
int chroma_w
Definition: vf_chromanr.c:46