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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/pixdesc.h"
34 #include "avfilter.h"
35 #include "internal.h"
36 
37 typedef struct {
38  const AVClass *class;
39  double luma_strength;
41  int depth;
42  float *plane[16+1][4];
43  int linesize;
44  int hsub, vsub;
46 
47 #define OFFSET(x) offsetof(OWDenoiseContext, x)
48 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
49 static const AVOption owdenoise_options[] = {
50  { "depth", "set depth", OFFSET(depth), AV_OPT_TYPE_INT, {.i64 = 8}, 8, 16, FLAGS },
51  { "luma_strength", "set luma strength", OFFSET(luma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
52  { "ls", "set luma strength", OFFSET(luma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
53  { "chroma_strength", "set chroma strength", OFFSET(chroma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
54  { "cs", "set chroma strength", OFFSET(chroma_strength), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0}, 0, 1000, FLAGS },
55  { NULL }
56 };
57 
58 AVFILTER_DEFINE_CLASS(owdenoise);
59 
60 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
61  { 0, 48, 12, 60, 3, 51, 15, 63 },
62  { 32, 16, 44, 28, 35, 19, 47, 31 },
63  { 8, 56, 4, 52, 11, 59, 7, 55 },
64  { 40, 24, 36, 20, 43, 27, 39, 23 },
65  { 2, 50, 14, 62, 1, 49, 13, 61 },
66  { 34, 18, 46, 30, 33, 17, 45, 29 },
67  { 10, 58, 6, 54, 9, 57, 5, 53 },
68  { 42, 26, 38, 22, 41, 25, 37, 21 },
69 };
70 
71 static const double coeff[2][5] = {
72  {
73  0.6029490182363579 * M_SQRT2,
74  0.2668641184428723 * M_SQRT2,
75  -0.07822326652898785 * M_SQRT2,
76  -0.01686411844287495 * M_SQRT2,
77  0.02674875741080976 * M_SQRT2,
78  },{
79  1.115087052456994 / M_SQRT2,
80  -0.5912717631142470 / M_SQRT2,
81  -0.05754352622849957 / M_SQRT2,
82  0.09127176311424948 / M_SQRT2,
83  }
84 };
85 
86 static const double icoeff[2][5] = {
87  {
88  1.115087052456994 / M_SQRT2,
89  0.5912717631142470 / M_SQRT2,
90  -0.05754352622849957 / M_SQRT2,
91  -0.09127176311424948 / M_SQRT2,
92  },{
93  0.6029490182363579 * M_SQRT2,
94  -0.2668641184428723 * M_SQRT2,
95  -0.07822326652898785 * M_SQRT2,
96  0.01686411844287495 * M_SQRT2,
97  0.02674875741080976 * M_SQRT2,
98  }
99 };
100 
101 
102 static inline void decompose(float *dst_l, float *dst_h, const float *src,
103  int linesize, int w)
104 {
105  int x, i;
106  for (x = 0; x < w; x++) {
107  double sum_l = src[x * linesize] * coeff[0][0];
108  double sum_h = src[x * linesize] * coeff[1][0];
109  for (i = 1; i <= 4; i++) {
110  const double s = src[avpriv_mirror(x - i, w - 1) * linesize]
111  + src[avpriv_mirror(x + i, w - 1) * linesize];
112 
113  sum_l += coeff[0][i] * s;
114  sum_h += coeff[1][i] * s;
115  }
116  dst_l[x * linesize] = sum_l;
117  dst_h[x * linesize] = sum_h;
118  }
119 }
120 
121 static inline void compose(float *dst, const float *src_l, const float *src_h,
122  int linesize, int w)
123 {
124  int x, i;
125  for (x = 0; x < w; x++) {
126  double sum_l = src_l[x * linesize] * icoeff[0][0];
127  double sum_h = src_h[x * linesize] * icoeff[1][0];
128  for (i = 1; i <= 4; i++) {
129  const int x0 = avpriv_mirror(x - i, w - 1) * linesize;
130  const int x1 = avpriv_mirror(x + i, w - 1) * linesize;
131 
132  sum_l += icoeff[0][i] * (src_l[x0] + src_l[x1]);
133  sum_h += icoeff[1][i] * (src_h[x0] + src_h[x1]);
134  }
135  dst[x * linesize] = (sum_l + sum_h) * 0.5;
136  }
137 }
138 
139 static inline void decompose2D(float *dst_l, float *dst_h, const float *src,
140  int xlinesize, int ylinesize,
141  int step, int w, int h)
142 {
143  int y, x;
144  for (y = 0; y < h; y++)
145  for (x = 0; x < step; x++)
146  decompose(dst_l + ylinesize*y + xlinesize*x,
147  dst_h + ylinesize*y + xlinesize*x,
148  src + ylinesize*y + xlinesize*x,
149  step * xlinesize, (w - x + step - 1) / step);
150 }
151 
152 static inline void compose2D(float *dst, const float *src_l, const float *src_h,
153  int xlinesize, int ylinesize,
154  int step, int w, int h)
155 {
156  int y, x;
157  for (y = 0; y < h; y++)
158  for (x = 0; x < step; x++)
159  compose(dst + ylinesize*y + xlinesize*x,
160  src_l + ylinesize*y + xlinesize*x,
161  src_h + ylinesize*y + xlinesize*x,
162  step * xlinesize, (w - x + step - 1) / step);
163 }
164 
165 static void decompose2D2(float *dst[4], float *src, float *temp[2],
166  int linesize, int step, int w, int h)
167 {
168  decompose2D(temp[0], temp[1], src, 1, linesize, step, w, h);
169  decompose2D( dst[0], dst[1], temp[0], linesize, 1, step, h, w);
170  decompose2D( dst[2], dst[3], temp[1], linesize, 1, step, h, w);
171 }
172 
173 static void compose2D2(float *dst, float *src[4], float *temp[2],
174  int linesize, int step, int w, int h)
175 {
176  compose2D(temp[0], src[0], src[1], linesize, 1, step, h, w);
177  compose2D(temp[1], src[2], src[3], linesize, 1, step, h, w);
178  compose2D(dst, temp[0], temp[1], 1, linesize, step, w, h);
179 }
180 
181 static void filter(OWDenoiseContext *s,
182  uint8_t *dst, int dst_linesize,
183  const uint8_t *src, int src_linesize,
184  int width, int height, double strength)
185 {
186  int x, y, i, j, depth = s->depth;
187 
188  while (1<<depth > width || 1<<depth > height)
189  depth--;
190 
191  for (y = 0; y < height; y++)
192  for(x = 0; x < width; x++)
193  s->plane[0][0][y*s->linesize + x] = src[y*src_linesize + x];
194 
195  for (i = 0; i < depth; i++)
196  decompose2D2(s->plane[i + 1], s->plane[i][0], s->plane[0] + 1, s->linesize, 1<<i, width, height);
197 
198  for (i = 0; i < depth; i++) {
199  for (j = 1; j < 4; j++) {
200  for (y = 0; y < height; y++) {
201  for (x = 0; x < width; x++) {
202  double v = s->plane[i + 1][j][y*s->linesize + x];
203  if (v > strength) v -= strength;
204  else if (v < -strength) v += strength;
205  else v = 0;
206  s->plane[i + 1][j][x + y*s->linesize] = v;
207  }
208  }
209  }
210  }
211  for (i = depth-1; i >= 0; i--)
212  compose2D2(s->plane[i][0], s->plane[i + 1], s->plane[0] + 1, s->linesize, 1<<i, width, height);
213 
214  for (y = 0; y < height; y++) {
215  for (x = 0; x < width; x++) {
216  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 :)
217  if ((unsigned)i > 255U) i = ~(i >> 31);
218  dst[y*dst_linesize + x] = i;
219  }
220  }
221 }
222 
223 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
224 {
225  int direct = 0;
226  AVFilterContext *ctx = inlink->dst;
227  OWDenoiseContext *s = ctx->priv;
228  AVFilterLink *outlink = ctx->outputs[0];
229  AVFrame *out;
230  const int cw = FF_CEIL_RSHIFT(inlink->w, s->hsub);
231  const int ch = FF_CEIL_RSHIFT(inlink->h, s->vsub);
232 
233  if (av_frame_is_writable(in)) {
234  direct = 1;
235  out = in;
236  } else {
237  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
238  if (!out) {
239  av_frame_free(&in);
240  return AVERROR(ENOMEM);
241  }
242  av_frame_copy_props(out, in);
243  }
244 
245  filter(s, out->data[0], out->linesize[0], in->data[0], in->linesize[0], inlink->w, inlink->h, s->luma_strength);
246  filter(s, out->data[1], out->linesize[1], in->data[1], in->linesize[1], cw, ch, s->chroma_strength);
247  filter(s, out->data[2], out->linesize[2], in->data[2], in->linesize[2], cw, ch, s->chroma_strength);
248 
249  if (!direct) {
250  if (in->data[3])
251  av_image_copy_plane(out->data[3], out->linesize[3],
252  in ->data[3], in ->linesize[3],
253  inlink->w, inlink->h);
254  av_frame_free(&in);
255  }
256 
257  return ff_filter_frame(outlink, out);
258 }
259 
261 {
262  static const enum AVPixelFormat pix_fmts[] = {
269  };
270  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
271  if (!fmts_list)
272  return AVERROR(ENOMEM);
273  return ff_set_common_formats(ctx, fmts_list);
274 }
275 
276 static int config_input(AVFilterLink *inlink)
277 {
278  int i, j;
279  OWDenoiseContext *s = inlink->dst->priv;
280  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
281  const int h = FFALIGN(inlink->h, 16);
282 
283  s->hsub = desc->log2_chroma_w;
284  s->vsub = desc->log2_chroma_h;
285 
286  s->linesize = FFALIGN(inlink->w, 16);
287  for (j = 0; j < 4; j++) {
288  for (i = 0; i <= s->depth; i++) {
289  s->plane[i][j] = av_malloc_array(s->linesize, h * sizeof(s->plane[0][0][0]));
290  if (!s->plane[i][j])
291  return AVERROR(ENOMEM);
292  }
293  }
294  return 0;
295 }
296 
297 static av_cold void uninit(AVFilterContext *ctx)
298 {
299  int i, j;
300  OWDenoiseContext *s = ctx->priv;
301 
302  for (j = 0; j < 4; j++)
303  for (i = 0; i <= s->depth; i++)
304  av_freep(&s->plane[i][j]);
305 }
306 
307 static const AVFilterPad owdenoise_inputs[] = {
308  {
309  .name = "default",
310  .type = AVMEDIA_TYPE_VIDEO,
311  .filter_frame = filter_frame,
312  .config_props = config_input,
313  },
314  { NULL }
315 };
316 
317 static const AVFilterPad owdenoise_outputs[] = {
318  {
319  .name = "default",
320  .type = AVMEDIA_TYPE_VIDEO,
321  },
322  { NULL }
323 };
324 
326  .name = "owdenoise",
327  .description = NULL_IF_CONFIG_SMALL("Denoise using wavelets."),
328  .priv_size = sizeof(OWDenoiseContext),
329  .uninit = uninit,
331  .inputs = owdenoise_inputs,
332  .outputs = owdenoise_outputs,
333  .priv_class = &owdenoise_class,
335 };
int plane
Definition: avisynth_c.h:291
#define NULL
Definition: coverity.c:32
static void compose(float *dst, const float *src_l, const float *src_h, int linesize, int w)
Definition: vf_owdenoise.c:121
float v
const char * s
Definition: avisynth_c.h:631
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2129
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
AVOption.
Definition: opt.h:255
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:68
misc image utilities
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:248
Main libavfilter public API header.
double chroma_strength
Definition: vf_owdenoise.c:40
static int config_input(AVFilterLink *inlink)
Definition: vf_owdenoise.c:276
else temp
Definition: vf_mcdeint.c:257
static void decompose2D2(float *dst[4], float *src, float *temp[2], int linesize, int step, int w, int h)
Definition: vf_owdenoise.c:165
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:53
double luma_strength
Definition: vf_owdenoise.c:39
AVFilter ff_vf_owdenoise
Definition: vf_owdenoise.c:325
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:181
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:109
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
#define FFALIGN(x, a)
Definition: common.h:71
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
#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:451
const char * name
Pad name.
Definition: internal.h:67
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1158
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:103
uint8_t
#define av_cold
Definition: attributes.h:74
AVOptions.
static void decompose(float *dst_l, float *dst_h, const float *src, int linesize, int w)
Definition: vf_owdenoise.c:102
static const AVOption owdenoise_options[]
Definition: vf_owdenoise.c:49
#define OFFSET(x)
Definition: vf_owdenoise.c:47
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:139
A filter pad used for either input or output.
Definition: internal.h:61
#define U(x)
Definition: vp56_arith.h:37
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:281
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:542
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:148
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_owdenoise.c:223
void * priv
private data for use by the filter
Definition: avfilter.h:654
int depth
Definition: v4l.c:62
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:67
static void compose2D2(float *dst, float *src[4], float *temp[2], int linesize, int step, int w, int h)
Definition: vf_owdenoise.c:173
float y
#define FF_CEIL_RSHIFT(a, b)
Definition: common.h:57
static av_always_inline av_const int avpriv_mirror(int x, int w)
Definition: internal.h:266
static const AVFilterPad owdenoise_outputs[]
Definition: vf_owdenoise.c:317
AVS_Value src
Definition: avisynth_c.h:482
AVFILTER_DEFINE_CLASS(owdenoise)
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:493
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:199
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:280
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
static const uint8_t dither[8][8]
Definition: vf_owdenoise.c:60
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
BYTE int const BYTE int int int height
Definition: avisynth_c.h:676
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:69
Describe the class of an AVClass context structure.
Definition: log.h:67
static const double icoeff[2][5]
Definition: vf_owdenoise.c:86
Filter definition.
Definition: avfilter.h:470
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:239
float * plane[16+1][4]
Definition: vf_owdenoise.c:42
#define FLAGS
Definition: vf_owdenoise.c:48
const char * name
Filter name.
Definition: avfilter.h:474
static int query_formats(AVFilterContext *ctx)
Definition: vf_owdenoise.c:260
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:152
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:648
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:209
static int flags
Definition: cpu.c:47
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:182
#define M_SQRT2
Definition: mathematics.h:55
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_owdenoise.c:297
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:70
A list of supported formats for one end of a filter link.
Definition: formats.h:64
static const double coeff[2][5]
Definition: vf_owdenoise.c:71
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
An instance of a filter.
Definition: avfilter.h:633
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:101
#define av_malloc_array(a, b)
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:273
internal API functions
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
for(j=16;j >0;--j)
static const AVFilterPad owdenoise_inputs[]
Definition: vf_owdenoise.c:307
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:553
static int width