FFmpeg
vf_owdenoise.c
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1 /*
2  * Copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (c) 2013 Clément Bœsch <u pkh me>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20  */
21 
22 /**
23  * @todo try to change to int
24  * @todo try lifting based implementation
25  * @todo optimize optimize optimize
26  * @todo hard thresholding
27  * @todo use QP to decide filter strength
28  * @todo wavelet normalization / least squares optimal signal vs. noise thresholds
29  */
30 
31 #include "libavutil/imgutils.h"
32 #include "libavutil/opt.h"
33 #include "libavutil/mem_internal.h"
34 #include "libavutil/pixdesc.h"
35 #include "avfilter.h"
36 #include "internal.h"
37 
38 typedef struct OWDenoiseContext {
39  const AVClass *class;
40  double luma_strength;
42  int depth;
43  float *plane[16+1][4];
44  int linesize;
45  int hsub, vsub;
48 
49 #define OFFSET(x) offsetof(OWDenoiseContext, x)
50 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
51 static const AVOption owdenoise_options[] = {
52  { "depth", "set depth", OFFSET(depth), AV_OPT_TYPE_INT, {.i64 = 8}, 8, 16, FLAGS },
53  { "luma_strength", "set luma strength", OFFSET(luma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
54  { "ls", "set luma strength", OFFSET(luma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
55  { "chroma_strength", "set chroma strength", OFFSET(chroma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
56  { "cs", "set chroma strength", OFFSET(chroma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
57  { NULL }
58 };
59 
60 AVFILTER_DEFINE_CLASS(owdenoise);
61 
62 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
63  { 0, 48, 12, 60, 3, 51, 15, 63 },
64  { 32, 16, 44, 28, 35, 19, 47, 31 },
65  { 8, 56, 4, 52, 11, 59, 7, 55 },
66  { 40, 24, 36, 20, 43, 27, 39, 23 },
67  { 2, 50, 14, 62, 1, 49, 13, 61 },
68  { 34, 18, 46, 30, 33, 17, 45, 29 },
69  { 10, 58, 6, 54, 9, 57, 5, 53 },
70  { 42, 26, 38, 22, 41, 25, 37, 21 },
71 };
72 
73 static const double coeff[2][5] = {
74  {
75  0.6029490182363579 * M_SQRT2,
76  0.2668641184428723 * M_SQRT2,
77  -0.07822326652898785 * M_SQRT2,
78  -0.01686411844287495 * M_SQRT2,
79  0.02674875741080976 * M_SQRT2,
80  },{
81  1.115087052456994 / M_SQRT2,
82  -0.5912717631142470 / M_SQRT2,
83  -0.05754352622849957 / M_SQRT2,
84  0.09127176311424948 / M_SQRT2,
85  }
86 };
87 
88 static const double icoeff[2][5] = {
89  {
90  1.115087052456994 / M_SQRT2,
91  0.5912717631142470 / M_SQRT2,
92  -0.05754352622849957 / M_SQRT2,
93  -0.09127176311424948 / M_SQRT2,
94  },{
95  0.6029490182363579 * M_SQRT2,
96  -0.2668641184428723 * M_SQRT2,
97  -0.07822326652898785 * M_SQRT2,
98  0.01686411844287495 * M_SQRT2,
99  0.02674875741080976 * M_SQRT2,
100  }
101 };
102 
103 
104 static inline void decompose(float *dst_l, float *dst_h, const float *src,
105  int linesize, int w)
106 {
107  int x, i;
108  for (x = 0; x < w; x++) {
109  double sum_l = src[x * linesize] * coeff[0][0];
110  double sum_h = src[x * linesize] * coeff[1][0];
111  for (i = 1; i <= 4; i++) {
112  const double s = src[avpriv_mirror(x - i, w - 1) * linesize]
113  + src[avpriv_mirror(x + i, w - 1) * linesize];
114 
115  sum_l += coeff[0][i] * s;
116  sum_h += coeff[1][i] * s;
117  }
118  dst_l[x * linesize] = sum_l;
119  dst_h[x * linesize] = sum_h;
120  }
121 }
122 
123 static inline void compose(float *dst, const float *src_l, const float *src_h,
124  int linesize, int w)
125 {
126  int x, i;
127  for (x = 0; x < w; x++) {
128  double sum_l = src_l[x * linesize] * icoeff[0][0];
129  double sum_h = src_h[x * linesize] * icoeff[1][0];
130  for (i = 1; i <= 4; i++) {
131  const int x0 = avpriv_mirror(x - i, w - 1) * linesize;
132  const int x1 = avpriv_mirror(x + i, w - 1) * linesize;
133 
134  sum_l += icoeff[0][i] * (src_l[x0] + src_l[x1]);
135  sum_h += icoeff[1][i] * (src_h[x0] + src_h[x1]);
136  }
137  dst[x * linesize] = (sum_l + sum_h) * 0.5;
138  }
139 }
140 
141 static inline void decompose2D(float *dst_l, float *dst_h, const float *src,
142  int xlinesize, int ylinesize,
143  int step, int w, int h)
144 {
145  int y, x;
146  for (y = 0; y < h; y++)
147  for (x = 0; x < step; x++)
148  decompose(dst_l + ylinesize*y + xlinesize*x,
149  dst_h + ylinesize*y + xlinesize*x,
150  src + ylinesize*y + xlinesize*x,
151  step * xlinesize, (w - x + step - 1) / step);
152 }
153 
154 static inline void compose2D(float *dst, const float *src_l, const float *src_h,
155  int xlinesize, int ylinesize,
156  int step, int w, int h)
157 {
158  int y, x;
159  for (y = 0; y < h; y++)
160  for (x = 0; x < step; x++)
161  compose(dst + ylinesize*y + xlinesize*x,
162  src_l + ylinesize*y + xlinesize*x,
163  src_h + ylinesize*y + xlinesize*x,
164  step * xlinesize, (w - x + step - 1) / step);
165 }
166 
167 static void decompose2D2(float *dst[4], float *src, float *temp[2],
168  int linesize, int step, int w, int h)
169 {
170  decompose2D(temp[0], temp[1], src, 1, linesize, step, w, h);
171  decompose2D( dst[0], dst[1], temp[0], linesize, 1, step, h, w);
172  decompose2D( dst[2], dst[3], temp[1], linesize, 1, step, h, w);
173 }
174 
175 static void compose2D2(float *dst, float *src[4], float *temp[2],
176  int linesize, int step, int w, int h)
177 {
178  compose2D(temp[0], src[0], src[1], linesize, 1, step, h, w);
179  compose2D(temp[1], src[2], src[3], linesize, 1, step, h, w);
180  compose2D(dst, temp[0], temp[1], 1, linesize, step, w, h);
181 }
182 
183 static void filter(OWDenoiseContext *s,
184  uint8_t *dst, int dst_linesize,
185  const uint8_t *src, int src_linesize,
186  int width, int height, double strength)
187 {
188  int x, y, i, j, depth = s->depth;
189 
190  while (1<<depth > width || 1<<depth > height)
191  depth--;
192 
193  if (s->pixel_depth <= 8) {
194  for (y = 0; y < height; y++)
195  for(x = 0; x < width; x++)
196  s->plane[0][0][y*s->linesize + x] = src[y*src_linesize + x];
197  } else {
198  const uint16_t *src16 = (const uint16_t *)src;
199 
200  src_linesize /= 2;
201  for (y = 0; y < height; y++)
202  for(x = 0; x < width; x++)
203  s->plane[0][0][y*s->linesize + x] = src16[y*src_linesize + x];
204  }
205 
206  for (i = 0; i < depth; i++)
207  decompose2D2(s->plane[i + 1], s->plane[i][0], s->plane[0] + 1, s->linesize, 1<<i, width, height);
208 
209  for (i = 0; i < depth; i++) {
210  for (j = 1; j < 4; j++) {
211  for (y = 0; y < height; y++) {
212  for (x = 0; x < width; x++) {
213  double v = s->plane[i + 1][j][y*s->linesize + x];
214  if (v > strength) v -= strength;
215  else if (v < -strength) v += strength;
216  else v = 0;
217  s->plane[i + 1][j][x + y*s->linesize] = v;
218  }
219  }
220  }
221  }
222  for (i = depth-1; i >= 0; i--)
223  compose2D2(s->plane[i][0], s->plane[i + 1], s->plane[0] + 1, s->linesize, 1<<i, width, height);
224 
225  if (s->pixel_depth <= 8) {
226  for (y = 0; y < height; y++) {
227  for (x = 0; x < width; x++) {
228  i = s->plane[0][0][y*s->linesize + x] + dither[x&7][y&7]*(1.0/64) + 1.0/128; // yes the rounding is insane but optimal :)
229  if ((unsigned)i > 255U) i = ~(i >> 31);
230  dst[y*dst_linesize + x] = i;
231  }
232  }
233  } else {
234  uint16_t *dst16 = (uint16_t *)dst;
235 
236  dst_linesize /= 2;
237  for (y = 0; y < height; y++) {
238  for (x = 0; x < width; x++) {
239  i = s->plane[0][0][y*s->linesize + x];
240  dst16[y*dst_linesize + x] = i;
241  }
242  }
243  }
244 }
245 
247 {
248  AVFilterContext *ctx = inlink->dst;
249  OWDenoiseContext *s = ctx->priv;
250  AVFilterLink *outlink = ctx->outputs[0];
251  AVFrame *out;
252  const int cw = AV_CEIL_RSHIFT(inlink->w, s->hsub);
253  const int ch = AV_CEIL_RSHIFT(inlink->h, s->vsub);
254 
255  if (av_frame_is_writable(in)) {
256  out = in;
257 
258  if (s->luma_strength > 0)
259  filter(s, out->data[0], out->linesize[0], in->data[0], in->linesize[0], inlink->w, inlink->h, s->luma_strength);
260  if (s->chroma_strength > 0) {
261  filter(s, out->data[1], out->linesize[1], in->data[1], in->linesize[1], cw, ch, s->chroma_strength);
262  filter(s, out->data[2], out->linesize[2], in->data[2], in->linesize[2], cw, ch, s->chroma_strength);
263  }
264  } else {
265  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
266  if (!out) {
267  av_frame_free(&in);
268  return AVERROR(ENOMEM);
269  }
271 
272  if (s->luma_strength > 0) {
273  filter(s, out->data[0], out->linesize[0], in->data[0], in->linesize[0], inlink->w, inlink->h, s->luma_strength);
274  } else {
275  av_image_copy_plane(out->data[0], out->linesize[0], in ->data[0], in ->linesize[0], inlink->w, inlink->h);
276  }
277  if (s->chroma_strength > 0) {
278  filter(s, out->data[1], out->linesize[1], in->data[1], in->linesize[1], cw, ch, s->chroma_strength);
279  filter(s, out->data[2], out->linesize[2], in->data[2], in->linesize[2], cw, ch, s->chroma_strength);
280  } else {
281  av_image_copy_plane(out->data[1], out->linesize[1], in ->data[1], in ->linesize[1], inlink->w, inlink->h);
282  av_image_copy_plane(out->data[2], out->linesize[2], in ->data[2], in ->linesize[2], inlink->w, inlink->h);
283  }
284 
285  if (in->data[3])
286  av_image_copy_plane(out->data[3], out->linesize[3],
287  in ->data[3], in ->linesize[3],
288  inlink->w, inlink->h);
289  av_frame_free(&in);
290  }
291 
292  return ff_filter_frame(outlink, out);
293 }
294 
296 {
297  static const enum AVPixelFormat pix_fmts[] = {
311  };
313 }
314 
316 {
317  int i, j;
318  OWDenoiseContext *s = inlink->dst->priv;
320  const int h = FFALIGN(inlink->h, 16);
321 
322  s->hsub = desc->log2_chroma_w;
323  s->vsub = desc->log2_chroma_h;
324  s->pixel_depth = desc->comp[0].depth;
325 
326  s->linesize = FFALIGN(inlink->w, 16);
327  for (j = 0; j < 4; j++) {
328  for (i = 0; i <= s->depth; i++) {
329  s->plane[i][j] = av_malloc_array(s->linesize, h * sizeof(s->plane[0][0][0]));
330  if (!s->plane[i][j])
331  return AVERROR(ENOMEM);
332  }
333  }
334  return 0;
335 }
336 
338 {
339  int i, j;
340  OWDenoiseContext *s = ctx->priv;
341 
342  for (j = 0; j < 4; j++)
343  for (i = 0; i <= s->depth; i++)
344  av_freep(&s->plane[i][j]);
345 }
346 
347 static const AVFilterPad owdenoise_inputs[] = {
348  {
349  .name = "default",
350  .type = AVMEDIA_TYPE_VIDEO,
351  .filter_frame = filter_frame,
352  .config_props = config_input,
353  },
354 };
355 
356 static const AVFilterPad owdenoise_outputs[] = {
357  {
358  .name = "default",
359  .type = AVMEDIA_TYPE_VIDEO,
360  },
361 };
362 
364  .name = "owdenoise",
365  .description = NULL_IF_CONFIG_SMALL("Denoise using wavelets."),
366  .priv_size = sizeof(OWDenoiseContext),
367  .uninit = uninit,
371  .priv_class = &owdenoise_class,
373 };
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:98
owdenoise_inputs
static const AVFilterPad owdenoise_inputs[]
Definition: vf_owdenoise.c:347
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_owdenoise.c:315
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
decompose2D2
static void decompose2D2(float *dst[4], float *src, float *temp[2], int linesize, int step, int w, int h)
Definition: vf_owdenoise.c:167
opt.h
mem_internal.h
out
FILE * out
Definition: movenc.c:54
OWDenoiseContext::plane
float * plane[16+1][4]
Definition: vf_owdenoise.c:43
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1019
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2540
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:112
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
pixdesc.h
step
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
Definition: rate_distortion.txt:58
w
uint8_t w
Definition: llviddspenc.c:38
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:389
OFFSET
#define OFFSET(x)
Definition: vf_owdenoise.c:49
compose
static void compose(float *dst, const float *src_l, const float *src_h, int linesize, int w)
Definition: vf_owdenoise.c:123
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:153
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:374
filter
static void filter(OWDenoiseContext *s, uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int width, int height, double strength)
Definition: vf_owdenoise.c:183
OWDenoiseContext::pixel_depth
int pixel_depth
Definition: vf_owdenoise.c:46
U
#define U(x)
Definition: vp56_arith.h:37
decompose2D
static void decompose2D(float *dst_l, float *dst_h, const float *src, int xlinesize, int ylinesize, int step, int w, int h)
Definition: vf_owdenoise.c:141
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:387
decompose
static void decompose(float *dst_l, float *dst_h, const float *src, int linesize, int w)
Definition: vf_owdenoise.c:104
owdenoise_options
static const AVOption owdenoise_options[]
Definition: vf_owdenoise.c:51
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:50
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:392
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:401
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:257
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:101
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:402
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:226
ff_set_common_formats_from_list
int ff_set_common_formats_from_list(AVFilterContext *ctx, const int *fmts)
Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts))
Definition: formats.c:703
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:290
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:386
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:400
ctx
AVFormatContext * ctx
Definition: movenc.c:48
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:66
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:152
compose2D2
static void compose2D2(float *dst, float *src[4], float *temp[2], int linesize, int step, int w, int h)
Definition: vf_owdenoise.c:175
owdenoise_outputs
static const AVFilterPad owdenoise_outputs[]
Definition: vf_owdenoise.c:356
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:537
OWDenoiseContext
Definition: vf_owdenoise.c:38
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(owdenoise)
src
#define src
Definition: vp8dsp.c:255
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:391
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:390
avpriv_mirror
static av_always_inline av_const int avpriv_mirror(int x, int w)
Definition: internal.h:275
dither
static const uint8_t dither[8][8]
Definition: vf_owdenoise.c:62
FLAGS
#define FLAGS
Definition: vf_owdenoise.c:50
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:117
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_owdenoise.c:246
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:394
OWDenoiseContext::luma_strength
double luma_strength
Definition: vf_owdenoise.c:40
OWDenoiseContext::linesize
int linesize
Definition: vf_owdenoise.c:44
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:396
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:473
height
#define height
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:167
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:130
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_owdenoise.c:295
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:116
compose2D
static void compose2D(float *dst, const float *src_l, const float *src_h, int xlinesize, int ylinesize, int step, int w, int h)
Definition: vf_owdenoise.c:154
i
int i
Definition: input.c:406
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_owdenoise.c:337
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:56
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:388
AVFilter
Filter definition.
Definition: avfilter.h:149
OWDenoiseContext::chroma_strength
double chroma_strength
Definition: vf_owdenoise.c:41
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:393
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:398
OWDenoiseContext::depth
int depth
Definition: vf_owdenoise.c:42
ff_vf_owdenoise
const AVFilter ff_vf_owdenoise
Definition: vf_owdenoise.c:363
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
avfilter.h
temp
else temp
Definition: vf_mcdeint.c:256
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:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:346
icoeff
static const double icoeff[2][5]
Definition: vf_owdenoise.c:88
desc
const char * desc
Definition: libsvtav1.c:79
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:70
M_SQRT2
#define M_SQRT2
Definition: mathematics.h:61
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
OWDenoiseContext::hsub
int hsub
Definition: vf_owdenoise.c:45
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:153
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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:73
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:334
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
coeff
static const double coeff[2][5]
Definition: vf_owdenoise.c:73
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:395
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:399
OWDenoiseContext::vsub
int vsub
Definition: vf_owdenoise.c:45
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:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:397