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vf_vaguedenoiser.c
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1 /*
2  * Copyright (c) 2003 LeFunGus, lefungus@altern.org
3  *
4  * This file is part of FFmpeg
5  *
6  * FFmpeg is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (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
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 #include <float.h>
22 
23 #include "libavutil/imgutils.h"
24 #include "libavutil/attributes.h"
25 #include "libavutil/common.h"
26 #include "libavutil/pixdesc.h"
27 #include "libavutil/intreadwrite.h"
28 #include "libavutil/opt.h"
29 
30 #include "avfilter.h"
31 #include "formats.h"
32 #include "internal.h"
33 #include "video.h"
34 
35 typedef struct VagueDenoiserContext {
36  const AVClass *class;
37 
38  float threshold;
39  float percent;
40  int method;
41  int nsteps;
42  int planes;
43 
44  int depth;
45  int peak;
46  int nb_planes;
47  int planeheight[4];
48  int planewidth[4];
49 
50  float *block;
51  float *in;
52  float *out;
53  float *tmp;
54 
55  int hlowsize[4][32];
56  int hhighsize[4][32];
57  int vlowsize[4][32];
58  int vhighsize[4][32];
59 
60  void (*thresholding)(float *block, const int width, const int height,
61  const int stride, const float threshold,
62  const float percent, const int nsteps);
64 
65 #define OFFSET(x) offsetof(VagueDenoiserContext, x)
66 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
67 static const AVOption vaguedenoiser_options[] = {
68  { "threshold", "set filtering strength", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=2.}, 0,DBL_MAX, FLAGS },
69  { "method", "set filtering method", OFFSET(method), AV_OPT_TYPE_INT, {.i64=2 }, 0, 2, FLAGS, "method" },
70  { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "method" },
71  { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "method" },
72  { "garrote", "garotte thresholding", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "method" },
73  { "nsteps", "set number of steps", OFFSET(nsteps), AV_OPT_TYPE_INT, {.i64=6 }, 1, 32, FLAGS },
74  { "percent", "set percent of full denoising", OFFSET(percent),AV_OPT_TYPE_FLOAT, {.dbl=85}, 0,100, FLAGS },
75  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15 }, 0, 15, FLAGS },
76  { NULL }
77 };
78 
79 AVFILTER_DEFINE_CLASS(vaguedenoiser);
80 
81 #define NPAD 10
82 
83 static const float analysis_low[9] = {
84  0.037828455506995f, -0.023849465019380f, -0.110624404418423f, 0.377402855612654f,
85  0.852698679009403f, 0.377402855612654f, -0.110624404418423f, -0.023849465019380f, 0.037828455506995f
86 };
87 
88 static const float analysis_high[7] = {
89  -0.064538882628938f, 0.040689417609558f, 0.418092273222212f, -0.788485616405664f,
90  0.418092273222212f, 0.040689417609558f, -0.064538882628938f
91 };
92 
93 static const float synthesis_low[7] = {
94  -0.064538882628938f, -0.040689417609558f, 0.418092273222212f, 0.788485616405664f,
95  0.418092273222212f, -0.040689417609558f, -0.064538882628938f
96 };
97 
98 static const float synthesis_high[9] = {
99  -0.037828455506995f, -0.023849465019380f, 0.110624404418423f, 0.377402855612654f,
100  -0.852698679009403f, 0.377402855612654f, 0.110624404418423f, -0.023849465019380f, -0.037828455506995f
101 };
102 
104 {
105  static const enum AVPixelFormat pix_fmts[] = {
124  };
125  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
126  if (!fmts_list)
127  return AVERROR(ENOMEM);
128  return ff_set_common_formats(ctx, fmts_list);
129 }
130 
131 static int config_input(AVFilterLink *inlink)
132 {
133  VagueDenoiserContext *s = inlink->dst->priv;
135  int p, i, nsteps_width, nsteps_height, nsteps_max;
136 
137  s->depth = desc->comp[0].depth;
138  s->nb_planes = desc->nb_components;
139 
140  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
141  s->planeheight[0] = s->planeheight[3] = inlink->h;
142  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
143  s->planewidth[0] = s->planewidth[3] = inlink->w;
144 
145  s->block = av_malloc_array(inlink->w * inlink->h, sizeof(*s->block));
146  s->in = av_malloc_array(32 + FFMAX(inlink->w, inlink->h), sizeof(*s->in));
147  s->out = av_malloc_array(32 + FFMAX(inlink->w, inlink->h), sizeof(*s->out));
148  s->tmp = av_malloc_array(32 + FFMAX(inlink->w, inlink->h), sizeof(*s->tmp));
149 
150  if (!s->block || !s->in || !s->out || !s->tmp)
151  return AVERROR(ENOMEM);
152 
153  s->threshold *= 1 << (s->depth - 8);
154  s->peak = (1 << s->depth) - 1;
155 
156  nsteps_width = ((s->planes & 2 || s->planes & 4) && s->nb_planes > 1) ? s->planewidth[1] : s->planewidth[0];
157  nsteps_height = ((s->planes & 2 || s->planes & 4) && s->nb_planes > 1) ? s->planeheight[1] : s->planeheight[0];
158 
159  for (nsteps_max = 1; nsteps_max < 15; nsteps_max++) {
160  if (pow(2, nsteps_max) >= nsteps_width || pow(2, nsteps_max) >= nsteps_height)
161  break;
162  }
163 
164  s->nsteps = FFMIN(s->nsteps, nsteps_max - 2);
165 
166  for (p = 0; p < 4; p++) {
167  s->hlowsize[p][0] = (s->planewidth[p] + 1) >> 1;
168  s->hhighsize[p][0] = s->planewidth[p] >> 1;
169  s->vlowsize[p][0] = (s->planeheight[p] + 1) >> 1;
170  s->vhighsize[p][0] = s->planeheight[p] >> 1;
171 
172  for (i = 1; i < s->nsteps; i++) {
173  s->hlowsize[p][i] = (s->hlowsize[p][i - 1] + 1) >> 1;
174  s->hhighsize[p][i] = s->hlowsize[p][i - 1] >> 1;
175  s->vlowsize[p][i] = (s->vlowsize[p][i - 1] + 1) >> 1;
176  s->vhighsize[p][i] = s->vlowsize[p][i - 1] >> 1;
177  }
178  }
179 
180  return 0;
181 }
182 
183 static inline void copy(const float *p1, float *p2, const int length)
184 {
185  memcpy(p2, p1, length * sizeof(float));
186 }
187 
188 static inline void copyv(const float *p1, const int stride1, float *p2, const int length)
189 {
190  int i;
191 
192  for (i = 0; i < length; i++) {
193  p2[i] = *p1;
194  p1 += stride1;
195  }
196 }
197 
198 static inline void copyh(const float *p1, float *p2, const int stride2, const int length)
199 {
200  int i;
201 
202  for (i = 0; i < length; i++) {
203  *p2 = p1[i];
204  p2 += stride2;
205  }
206 }
207 
208 // Do symmetric extension of data using prescribed symmetries
209 // Original values are in output[npad] through output[npad+size-1]
210 // New values will be placed in output[0] through output[npad] and in output[npad+size] through output[2*npad+size-1] (note: end values may not be filled in)
211 // extension at left bdry is ... 3 2 1 0 | 0 1 2 3 ...
212 // same for right boundary
213 // if right_ext=1 then ... 3 2 1 0 | 1 2 3
214 static void symmetric_extension(float *output, const int size, const int left_ext, const int right_ext)
215 {
216  int first = NPAD;
217  int last = NPAD - 1 + size;
218  const int originalLast = last;
219  int i, nextend, idx;
220 
221  if (left_ext == 2)
222  output[--first] = output[NPAD];
223  if (right_ext == 2)
224  output[++last] = output[originalLast];
225 
226  // extend left end
227  nextend = first;
228  for (i = 0; i < nextend; i++)
229  output[--first] = output[NPAD + 1 + i];
230 
231  idx = NPAD + NPAD - 1 + size;
232 
233  // extend right end
234  nextend = idx - last;
235  for (i = 0; i < nextend; i++)
236  output[++last] = output[originalLast - 1 - i];
237 }
238 
239 static void transform_step(float *input, float *output, const int size, const int low_size, VagueDenoiserContext *s)
240 {
241  int i;
242 
243  symmetric_extension(input, size, 1, 1);
244 
245  for (i = NPAD; i < NPAD + low_size; i++) {
246  const float a = input[2 * i - 14] * analysis_low[0];
247  const float b = input[2 * i - 13] * analysis_low[1];
248  const float c = input[2 * i - 12] * analysis_low[2];
249  const float d = input[2 * i - 11] * analysis_low[3];
250  const float e = input[2 * i - 10] * analysis_low[4];
251  const float f = input[2 * i - 9] * analysis_low[3];
252  const float g = input[2 * i - 8] * analysis_low[2];
253  const float h = input[2 * i - 7] * analysis_low[1];
254  const float k = input[2 * i - 6] * analysis_low[0];
255 
256  output[i] = a + b + c + d + e + f + g + h + k;
257  }
258 
259  for (i = NPAD; i < NPAD + low_size; i++) {
260  const float a = input[2 * i - 12] * analysis_high[0];
261  const float b = input[2 * i - 11] * analysis_high[1];
262  const float c = input[2 * i - 10] * analysis_high[2];
263  const float d = input[2 * i - 9] * analysis_high[3];
264  const float e = input[2 * i - 8] * analysis_high[2];
265  const float f = input[2 * i - 7] * analysis_high[1];
266  const float g = input[2 * i - 6] * analysis_high[0];
267 
268  output[i + low_size] = a + b + c + d + e + f + g;
269  }
270 }
271 
272 static void invert_step(const float *input, float *output, float *temp, const int size, VagueDenoiserContext *s)
273 {
274  const int low_size = (size + 1) >> 1;
275  const int high_size = size >> 1;
276  int left_ext = 1, right_ext, i;
277  int findex;
278 
279  memcpy(temp + NPAD, input + NPAD, low_size * sizeof(float));
280 
281  right_ext = (size % 2 == 0) ? 2 : 1;
282  symmetric_extension(temp, low_size, left_ext, right_ext);
283 
284  memset(output, 0, (NPAD + NPAD + size) * sizeof(float));
285  findex = (size + 2) >> 1;
286 
287  for (i = 9; i < findex + 11; i++) {
288  const float a = temp[i] * synthesis_low[0];
289  const float b = temp[i] * synthesis_low[1];
290  const float c = temp[i] * synthesis_low[2];
291  const float d = temp[i] * synthesis_low[3];
292 
293  output[2 * i - 13] += a;
294  output[2 * i - 12] += b;
295  output[2 * i - 11] += c;
296  output[2 * i - 10] += d;
297  output[2 * i - 9] += c;
298  output[2 * i - 8] += b;
299  output[2 * i - 7] += a;
300  }
301 
302  memcpy(temp + NPAD, input + NPAD + low_size, high_size * sizeof(float));
303 
304  left_ext = 2;
305  right_ext = (size % 2 == 0) ? 1 : 2;
306  symmetric_extension(temp, high_size, left_ext, right_ext);
307 
308  for (i = 8; i < findex + 11; i++) {
309  const float a = temp[i] * synthesis_high[0];
310  const float b = temp[i] * synthesis_high[1];
311  const float c = temp[i] * synthesis_high[2];
312  const float d = temp[i] * synthesis_high[3];
313  const float e = temp[i] * synthesis_high[4];
314 
315  output[2 * i - 13] += a;
316  output[2 * i - 12] += b;
317  output[2 * i - 11] += c;
318  output[2 * i - 10] += d;
319  output[2 * i - 9] += e;
320  output[2 * i - 8] += d;
321  output[2 * i - 7] += c;
322  output[2 * i - 6] += b;
323  output[2 * i - 5] += a;
324  }
325 }
326 
327 static void hard_thresholding(float *block, const int width, const int height,
328  const int stride, const float threshold,
329  const float percent, const int unused)
330 {
331  const float frac = 1.f - percent * 0.01f;
332  int y, x;
333 
334  for (y = 0; y < height; y++) {
335  for (x = 0; x < width; x++) {
336  if (FFABS(block[x]) <= threshold)
337  block[x] *= frac;
338  }
339  block += stride;
340  }
341 }
342 
343 static void soft_thresholding(float *block, const int width, const int height, const int stride,
344  const float threshold, const float percent, const int nsteps)
345 {
346  const float frac = 1.f - percent * 0.01f;
347  const float shift = threshold * 0.01f * percent;
348  int w = width;
349  int h = height;
350  int y, x, l;
351 
352  for (l = 0; l < nsteps; l++) {
353  w = (w + 1) >> 1;
354  h = (h + 1) >> 1;
355  }
356 
357  for (y = 0; y < height; y++) {
358  const int x0 = (y < h) ? w : 0;
359  for (x = x0; x < width; x++) {
360  const float temp = FFABS(block[x]);
361  if (temp <= threshold)
362  block[x] *= frac;
363  else
364  block[x] = (block[x] < 0.f ? -1.f : (block[x] > 0.f ? 1.f : 0.f)) * (temp - shift);
365  }
366  block += stride;
367  }
368 }
369 
370 static void qian_thresholding(float *block, const int width, const int height,
371  const int stride, const float threshold,
372  const float percent, const int unused)
373 {
374  const float percent01 = percent * 0.01f;
375  const float tr2 = threshold * threshold * percent01;
376  const float frac = 1.f - percent01;
377  int y, x;
378 
379  for (y = 0; y < height; y++) {
380  for (x = 0; x < width; x++) {
381  const float temp = FFABS(block[x]);
382  if (temp <= threshold) {
383  block[x] *= frac;
384  } else {
385  const float tp2 = temp * temp;
386  block[x] *= (tp2 - tr2) / tp2;
387  }
388  }
389  block += stride;
390  }
391 }
392 
394 {
395  int p, y, x, i, j;
396 
397  for (p = 0; p < s->nb_planes; p++) {
398  const int height = s->planeheight[p];
399  const int width = s->planewidth[p];
400  const uint8_t *srcp8 = in->data[p];
401  const uint16_t *srcp16 = (const uint16_t *)in->data[p];
402  uint8_t *dstp8 = out->data[p];
403  uint16_t *dstp16 = (uint16_t *)out->data[p];
404  float *output = s->block;
405  int h_low_size0 = width;
406  int v_low_size0 = height;
407  int nsteps_transform = s->nsteps;
408  int nsteps_invert = s->nsteps;
409  const float *input = s->block;
410 
411  if (!((1 << p) & s->planes)) {
412  av_image_copy_plane(out->data[p], out->linesize[p], in->data[p], in->linesize[p],
413  s->planewidth[p], s->planeheight[p]);
414  continue;
415  }
416 
417  if (s->depth <= 8) {
418  for (y = 0; y < height; y++) {
419  for (x = 0; x < width; x++)
420  output[x] = srcp8[x];
421  srcp8 += in->linesize[p];
422  output += width;
423  }
424  } else {
425  for (y = 0; y < height; y++) {
426  for (x = 0; x < width; x++)
427  output[x] = srcp16[x];
428  srcp16 += in->linesize[p] / 2;
429  output += width;
430  }
431  }
432 
433  while (nsteps_transform--) {
434  int low_size = (h_low_size0 + 1) >> 1;
435  float *input = s->block;
436  for (j = 0; j < v_low_size0; j++) {
437  copy(input, s->in + NPAD, h_low_size0);
438  transform_step(s->in, s->out, h_low_size0, low_size, s);
439  copy(s->out + NPAD, input, h_low_size0);
440  input += width;
441  }
442 
443  low_size = (v_low_size0 + 1) >> 1;
444  input = s->block;
445  for (j = 0; j < h_low_size0; j++) {
446  copyv(input, width, s->in + NPAD, v_low_size0);
447  transform_step(s->in, s->out, v_low_size0, low_size, s);
448  copyh(s->out + NPAD, input, width, v_low_size0);
449  input++;
450  }
451 
452  h_low_size0 = (h_low_size0 + 1) >> 1;
453  v_low_size0 = (v_low_size0 + 1) >> 1;
454  }
455 
456  s->thresholding(s->block, width, height, width, s->threshold, s->percent, s->nsteps);
457 
458  while (nsteps_invert--) {
459  const int idx = s->vlowsize[p][nsteps_invert] + s->vhighsize[p][nsteps_invert];
460  const int idx2 = s->hlowsize[p][nsteps_invert] + s->hhighsize[p][nsteps_invert];
461  float * idx3 = s->block;
462  for (i = 0; i < idx2; i++) {
463  copyv(idx3, width, s->in + NPAD, idx);
464  invert_step(s->in, s->out, s->tmp, idx, s);
465  copyh(s->out + NPAD, idx3, width, idx);
466  idx3++;
467  }
468 
469  idx3 = s->block;
470  for (i = 0; i < idx; i++) {
471  copy(idx3, s->in + NPAD, idx2);
472  invert_step(s->in, s->out, s->tmp, idx2, s);
473  copy(s->out + NPAD, idx3, idx2);
474  idx3 += width;
475  }
476  }
477 
478  if (s->depth <= 8) {
479  for (y = 0; y < height; y++) {
480  for (x = 0; x < width; x++)
481  dstp8[x] = av_clip_uint8(input[x] + 0.5f);
482  input += width;
483  dstp8 += out->linesize[p];
484  }
485  } else {
486  for (y = 0; y < height; y++) {
487  for (x = 0; x < width; x++)
488  dstp16[x] = av_clip(input[x] + 0.5f, 0, s->peak);
489  input += width;
490  dstp16 += out->linesize[p] / 2;
491  }
492  }
493  }
494 }
495 
496 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
497 {
498  AVFilterContext *ctx = inlink->dst;
499  VagueDenoiserContext *s = ctx->priv;
500  AVFilterLink *outlink = ctx->outputs[0];
501  AVFrame *out;
502  int direct = av_frame_is_writable(in);
503 
504  if (direct) {
505  out = in;
506  } else {
507  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
508  if (!out) {
509  av_frame_free(&in);
510  return AVERROR(ENOMEM);
511  }
512 
513  av_frame_copy_props(out, in);
514  }
515 
516  filter(s, in, out);
517 
518  if (!direct)
519  av_frame_free(&in);
520 
521  return ff_filter_frame(outlink, out);
522 }
523 
525 {
526  VagueDenoiserContext *s = ctx->priv;
527 
528  switch (s->method) {
529  case 0:
531  break;
532  case 1:
534  break;
535  case 2:
537  break;
538  }
539 
540  return 0;
541 }
542 
544 {
545  VagueDenoiserContext *s = ctx->priv;
546 
547  av_freep(&s->block);
548  av_freep(&s->in);
549  av_freep(&s->out);
550  av_freep(&s->tmp);
551 }
552 
554  {
555  .name = "default",
556  .type = AVMEDIA_TYPE_VIDEO,
557  .config_props = config_input,
558  .filter_frame = filter_frame,
559  },
560  { NULL }
561 };
562 
563 
565  {
566  .name = "default",
567  .type = AVMEDIA_TYPE_VIDEO
568  },
569  { NULL }
570 };
571 
573  .name = "vaguedenoiser",
574  .description = NULL_IF_CONFIG_SMALL("Apply a Wavelet based Denoiser."),
575  .priv_size = sizeof(VagueDenoiserContext),
576  .priv_class = &vaguedenoiser_class,
577  .init = init,
578  .uninit = uninit,
580  .inputs = vaguedenoiser_inputs,
581  .outputs = vaguedenoiser_outputs,
583 };
#define NULL
Definition: coverity.c:32
const char * s
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Definition: pixfmt.h:353
static void qian_thresholding(float *block, const int width, const int height, const int stride, const float threshold, const float percent, const int unused)
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Definition: pixfmt.h:67
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Main libavfilter public API header.
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Definition: pixfmt.h:180
const char * b
Definition: vf_curves.c:113
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:367
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:355
AVFilter ff_vf_vaguedenoiser
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:92
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
Macro definitions for various function/variable attributes.
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:125
static int16_t block[64]
Definition: dct.c:115
const char * name
Pad name.
Definition: internal.h:60
AVFILTER_DEFINE_CLASS(vaguedenoiser)
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1125
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
static void copyv(const float *p1, const int stride1, float *p2, const int length)
AVOptions.
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:366
#define height
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
static int flags
Definition: log.c:57
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:364
ptrdiff_t size
Definition: opengl_enc.c:101
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:356
A filter pad used for either input or output.
Definition: internal.h:54
static const float synthesis_low[7]
static void symmetric_extension(float *output, const int size, const int left_ext, const int right_ext)
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:568
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#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:163
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
void * priv
private data for use by the filter
Definition: avfilter.h:338
GLsizei GLsizei * length
Definition: opengl_enc.c:115
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:354
static void invert_step(const float *input, float *output, float *temp, const int size, VagueDenoiserContext *s)
#define FFMAX(a, b)
Definition: common.h:94
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
static const AVOption vaguedenoiser_options[]
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:349
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:370
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:335
#define FFMIN(a, b)
Definition: common.h:96
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
#define width
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
static const AVFilterPad vaguedenoiser_outputs[]
AVFormatContext * ctx
Definition: movenc.c:48
#define FLAGS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
static const AVFilterPad vaguedenoiser_inputs[]
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:350
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:369
static int query_formats(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:362
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
static void transform_step(float *input, float *output, const int size, const int low_size, VagueDenoiserContext *s)
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:359
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:536
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:218
void(* thresholding)(float *block, const int width, const int height, const int stride, const float threshold, const float percent, const int nsteps)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
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
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:351
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
#define OFFSET(x)
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:357
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:348
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:335
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:360
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:368
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:352
static av_cold void uninit(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:358
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:201
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
common internal and external API header
static const float synthesis_high[9]
static double c[64]
#define NPAD
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
static int config_input(AVFilterLink *inlink)
static void filter(VagueDenoiserContext *s, AVFrame *in, AVFrame *out)
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:272
static const float analysis_high[7]
An instance of a filter.
Definition: avfilter.h:323
FILE * out
Definition: movenc.c:54
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
#define av_malloc_array(a, b)
static void soft_thresholding(float *block, const int width, const int height, const int stride, const float threshold, const float percent, const int nsteps)
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:337
#define stride
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
static void copyh(const float *p1, float *p2, const int stride2, const int length)
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:363
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:596
static const float analysis_low[9]
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58