FFmpeg
vf_fftdnoiz.c
Go to the documentation of this file.
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <float.h>
20 
21 #include "libavutil/common.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 #include "libavutil/tx.h"
26 #include "internal.h"
27 #include "window_func.h"
28 
29 #define MAX_BLOCK 256
30 #define MAX_THREADS 32
31 
37 };
38 
39 typedef struct PlaneContext {
41  int nox, noy;
42  int b;
43  int o;
44  float n;
45 
51 } PlaneContext;
52 
53 typedef struct FFTdnoizContext {
54  const AVClass *class;
55 
56  float sigma;
57  float amount;
59  float overlap;
60  int method;
61  int window;
62  int nb_prev;
63  int nb_next;
64  int planesf;
65 
67 
68  int depth;
69  int nb_planes;
73 
76 
79 
80  void (*import_row)(AVComplexFloat *dst, uint8_t *src, int rw, float scale, float *win, int off);
81  void (*export_row)(AVComplexFloat *src, uint8_t *dst, int rw, int depth, float *win);
83 
84 #define OFFSET(x) offsetof(FFTdnoizContext, x)
85 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
86 #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
87 static const AVOption fftdnoiz_options[] = {
88  { "sigma", "set denoise strength",
89  OFFSET(sigma), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 100, .flags = TFLAGS },
90  { "amount", "set amount of denoising",
91  OFFSET(amount), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0.01, 1, .flags = TFLAGS },
92  { "block", "set block size",
93  OFFSET(block_size), AV_OPT_TYPE_INT, {.i64=32}, 8, MAX_BLOCK, .flags = FLAGS },
94  { "overlap", "set block overlap",
95  OFFSET(overlap), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0.2, 0.8, .flags = FLAGS },
96  { "method", "set method of denoising",
97  OFFSET(method), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, .flags = TFLAGS, "method" },
98  { "wiener", "wiener method",
99  0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, .flags = TFLAGS, "method" },
100  { "hard", "hard thresholding",
101  0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, .flags = TFLAGS, "method" },
102  { "prev", "set number of previous frames for temporal denoising",
103  OFFSET(nb_prev), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, .flags = FLAGS },
104  { "next", "set number of next frames for temporal denoising",
105  OFFSET(nb_next), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, .flags = FLAGS },
106  { "planes", "set planes to filter",
107  OFFSET(planesf), AV_OPT_TYPE_INT, {.i64=7}, 0, 15, .flags = TFLAGS },
109  { NULL }
110 };
111 
112 AVFILTER_DEFINE_CLASS(fftdnoiz);
113 
114 static const enum AVPixelFormat pix_fmts[] = {
139 };
140 
141 typedef struct ThreadData {
142  float *src, *dst;
143 } ThreadData;
144 
145 static void import_row8(AVComplexFloat *dst, uint8_t *src, int rw,
146  float scale, float *win, int off)
147 {
148  for (int j = 0; j < rw; j++) {
149  const int i = abs(j + off);
150  dst[j].re = src[i] * scale * win[j];
151  dst[j].im = 0.f;
152  }
153 }
154 
155 static void export_row8(AVComplexFloat *src, uint8_t *dst, int rw, int depth, float *win)
156 {
157  for (int j = 0; j < rw; j++)
158  dst[j] = av_clip_uint8(lrintf(src[j].re / win[j]));
159 }
160 
161 static void import_row16(AVComplexFloat *dst, uint8_t *srcp, int rw,
162  float scale, float *win, int off)
163 {
164  uint16_t *src = (uint16_t *)srcp;
165 
166  for (int j = 0; j < rw; j++) {
167  const int i = abs(j + off);
168  dst[j].re = src[i] * scale * win[j];
169  dst[j].im = 0;
170  }
171 }
172 
173 static void export_row16(AVComplexFloat *src, uint8_t *dstp, int rw, int depth, float *win)
174 {
175  uint16_t *dst = (uint16_t *)dstp;
176 
177  for (int j = 0; j < rw; j++)
178  dst[j] = av_clip_uintp2_c(lrintf(src[j].re / win[j]), depth);
179 }
180 
182 {
183  AVFilterContext *ctx = inlink->dst;
184  const AVPixFmtDescriptor *desc;
185  FFTdnoizContext *s = ctx->priv;
186  float lut[MAX_BLOCK + 1];
187  float overlap;
188  int i;
189 
190  desc = av_pix_fmt_desc_get(inlink->format);
191  s->depth = desc->comp[0].depth;
192 
193  if (s->depth <= 8) {
194  s->import_row = import_row8;
195  s->export_row = export_row8;
196  } else {
197  s->import_row = import_row16;
198  s->export_row = export_row16;
199  }
200 
201  s->planes[1].planewidth = s->planes[2].planewidth = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
202  s->planes[0].planewidth = s->planes[3].planewidth = inlink->w;
203  s->planes[1].planeheight = s->planes[2].planeheight = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
204  s->planes[0].planeheight = s->planes[3].planeheight = inlink->h;
205 
206  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
208 
209  for (int i = 0; i < s->nb_threads; i++) {
210  float scale = 1.f, iscale = 1.f;
211  int ret;
212 
213  if ((ret = av_tx_init(&s->fft[i], &s->tx_fn, AV_TX_FLOAT_FFT,
214  0, s->block_size, &scale, 0)) < 0 ||
215  (ret = av_tx_init(&s->ifft[i], &s->itx_fn, AV_TX_FLOAT_FFT,
216  1, s->block_size, &iscale, 0)) < 0 ||
217  (ret = av_tx_init(&s->fft_r[i], &s->tx_r_fn, AV_TX_FLOAT_FFT,
218  0, 1 + s->nb_prev + s->nb_next, &scale, 0)) < 0 ||
219  (ret = av_tx_init(&s->ifft_r[i], &s->itx_r_fn, AV_TX_FLOAT_FFT,
220  1, 1 + s->nb_prev + s->nb_next, &iscale, 0)) < 0)
221  return ret;
222  }
223 
224  for (i = 0; i < s->nb_planes; i++) {
225  PlaneContext *p = &s->planes[i];
226  int size;
227 
228  p->b = s->block_size;
229  p->n = 1.f / (p->b * p->b);
230  p->o = lrintf(p->b * s->overlap);
231  size = p->b - p->o;
232  p->nox = (p->planewidth + (size - 1)) / size;
233  p->noy = (p->planeheight + (size - 1)) / size;
234 
235  av_log(ctx, AV_LOG_DEBUG, "nox:%d noy:%d size:%d\n", p->nox, p->noy, size);
236 
237  p->buffer_linesize = p->b * sizeof(AVComplexFloat);
238  p->data_linesize = 2 * p->b * sizeof(float);
239  for (int j = 0; j < s->nb_threads; j++) {
240  p->hdata[j] = av_calloc(p->b, p->data_linesize);
241  p->hdata_out[j] = av_calloc(p->b, p->data_linesize);
242  p->vdata[j] = av_calloc(p->b, p->data_linesize);
243  p->vdata_out[j] = av_calloc(p->b, p->data_linesize);
244  p->buffer[j][CURRENT] = av_calloc(p->b, p->buffer_linesize);
245  if (!p->buffer[j][CURRENT])
246  return AVERROR(ENOMEM);
247  if (s->nb_prev > 0) {
248  p->buffer[j][PREV] = av_calloc(p->b, p->buffer_linesize);
249  if (!p->buffer[j][PREV])
250  return AVERROR(ENOMEM);
251  }
252  if (s->nb_next > 0) {
253  p->buffer[j][NEXT] = av_calloc(p->b, p->buffer_linesize);
254  if (!p->buffer[j][NEXT])
255  return AVERROR(ENOMEM);
256  }
257  if (!p->hdata[j] || !p->vdata[j] ||
258  !p->hdata_out[j] || !p->vdata_out[j])
259  return AVERROR(ENOMEM);
260  }
261  }
262 
263  generate_window_func(lut, s->block_size + 1, s->window, &overlap);
264 
265  for (int y = 0; y < s->block_size; y++) {
266  for (int x = 0; x < s->block_size; x++)
267  s->win[y][x] = lut[y] * lut[x];
268  }
269 
270  return 0;
271 }
272 
274  uint8_t *srcp, int src_linesize,
275  float *buffer, int buffer_linesize, int plane,
276  int jobnr, int y, int x)
277 {
278  PlaneContext *p = &s->planes[plane];
279  const int width = p->planewidth;
280  const int height = p->planeheight;
281  const int block = p->b;
282  const int overlap = p->o;
283  const int hoverlap = overlap / 2;
284  const int size = block - overlap;
285  const int bpp = (s->depth + 7) / 8;
286  const int data_linesize = p->data_linesize / sizeof(AVComplexFloat);
287  const float scale = 1.f / ((1.f + s->nb_prev + s->nb_next) * s->block_size * s->block_size);
288  AVComplexFloat *hdata = p->hdata[jobnr];
289  AVComplexFloat *hdata_out = p->hdata_out[jobnr];
290  AVComplexFloat *vdata_out = p->vdata_out[jobnr];
291  const int woff = -hoverlap;
292  const int hoff = -hoverlap;
293  const int rh = FFMIN(block, height - y * size + hoverlap);
294  const int rw = FFMIN(block, width - x * size + hoverlap);
295  AVComplexFloat *ssrc, *ddst, *dst = hdata, *dst_out = hdata_out;
296  float *bdst = buffer;
297 
298  buffer_linesize /= sizeof(float);
299 
300  for (int i = 0; i < rh; i++) {
301  uint8_t *src = srcp + src_linesize * abs(y * size + i + hoff) + x * size * bpp;
302 
303  s->import_row(dst, src, rw, scale, s->win[i], woff);
304  for (int j = rw; j < block; j++) {
305  dst[j].re = dst[rw - 1].re;
306  dst[j].im = 0.f;
307  }
308  s->tx_fn(s->fft[jobnr], dst_out, dst, sizeof(AVComplexFloat));
309 
310  ddst = dst_out;
311  dst += data_linesize;
312  dst_out += data_linesize;
313  }
314 
315  dst = dst_out;
316  for (int i = rh; i < block; i++) {
317  for (int j = 0; j < block; j++) {
318  dst[j].re = ddst[j].re;
319  dst[j].im = ddst[j].im;
320  }
321 
322  dst += data_linesize;
323  }
324 
325  ssrc = hdata_out;
326  dst = vdata_out;
327  for (int i = 0; i < block; i++) {
328  for (int j = 0; j < block; j++)
329  dst[j] = ssrc[j * data_linesize + i];
330  s->tx_fn(s->fft[jobnr], bdst, dst, sizeof(AVComplexFloat));
331 
332  dst += data_linesize;
333  bdst += buffer_linesize;
334  }
335 }
336 
338  uint8_t *dstp, int dst_linesize,
339  float *buffer, int buffer_linesize, int plane,
340  int jobnr, int y, int x)
341 {
342  PlaneContext *p = &s->planes[plane];
343  const int depth = s->depth;
344  const int bpp = (depth + 7) / 8;
345  const int width = p->planewidth;
346  const int height = p->planeheight;
347  const int block = p->b;
348  const int overlap = p->o;
349  const int hoverlap = overlap / 2;
350  const int size = block - overlap;
351  const int data_linesize = p->data_linesize / sizeof(AVComplexFloat);
352  AVComplexFloat *hdata = p->hdata[jobnr];
353  AVComplexFloat *hdata_out = p->hdata_out[jobnr];
354  AVComplexFloat *vdata_out = p->vdata_out[jobnr];
355  const int rw = FFMIN(size, width - x * size);
356  const int rh = FFMIN(size, height - y * size);
357  AVComplexFloat *hdst, *vdst = vdata_out, *hdst_out = hdata_out;
358  float *bsrc = buffer;
359 
360  hdst = hdata;
361  buffer_linesize /= sizeof(float);
362 
363  for (int i = 0; i < block; i++) {
364  s->itx_fn(s->ifft[jobnr], vdst, bsrc, sizeof(AVComplexFloat));
365  for (int j = 0; j < block; j++)
366  hdst[j * data_linesize + i] = vdst[j];
367 
368  vdst += data_linesize;
369  bsrc += buffer_linesize;
370  }
371 
372  hdst = hdata + hoverlap * data_linesize;
373  for (int i = 0; i < rh && (y * size + i) < height; i++) {
374  uint8_t *dst = dstp + dst_linesize * (y * size + i) + x * size * bpp;
375 
376  s->itx_fn(s->ifft[jobnr], hdst_out, hdst, sizeof(AVComplexFloat));
377  s->export_row(hdst_out + hoverlap, dst, rw, depth, s->win[i + hoverlap] + hoverlap);
378 
379  hdst += data_linesize;
380  hdst_out += data_linesize;
381  }
382 }
383 
384 static void filter_block3d2(FFTdnoizContext *s, int plane, float *pbuffer, float *nbuffer,
385  int jobnr)
386 {
387  PlaneContext *p = &s->planes[plane];
388  const int block = p->b;
389  const int buffer_linesize = p->buffer_linesize / sizeof(float);
390  const float depthx = (1 << (s->depth - 8)) * (1 << (s->depth - 8));
391  const float sigma = s->sigma * depthx / (3.f * s->block_size * s->block_size);
392  const float limit = 1.f - s->amount;
393  float *cbuffer = p->buffer[jobnr][CURRENT];
394  const int method = s->method;
395  float *cbuff = cbuffer;
396  float *pbuff = pbuffer;
397  float *nbuff = nbuffer;
398 
399  for (int i = 0; i < block; i++) {
400  for (int j = 0; j < block; j++) {
402  AVComplexFloat outbuffer[BSIZE];
403 
404  buffer[0].re = pbuff[2 * j ];
405  buffer[0].im = pbuff[2 * j + 1];
406 
407  buffer[1].re = cbuff[2 * j ];
408  buffer[1].im = cbuff[2 * j + 1];
409 
410  buffer[2].re = nbuff[2 * j ];
411  buffer[2].im = nbuff[2 * j + 1];
412 
413  s->tx_r_fn(s->fft_r[jobnr], outbuffer, buffer, sizeof(AVComplexFloat));
414 
415  for (int z = 0; z < 3; z++) {
416  const float re = outbuffer[z].re;
417  const float im = outbuffer[z].im;
418  const float power = re * re + im * im;
419  float factor;
420 
421  switch (method) {
422  case 0:
423  factor = fmaxf(limit, (power - sigma) / (power + 1e-15f));
424  break;
425  case 1:
426  factor = power < sigma ? limit : 1.f;
427  break;
428  }
429 
430  outbuffer[z].re *= factor;
431  outbuffer[z].im *= factor;
432  }
433 
434  s->itx_r_fn(s->ifft_r[jobnr], buffer, outbuffer, sizeof(AVComplexFloat));
435 
436  cbuff[2 * j + 0] = buffer[1].re;
437  cbuff[2 * j + 1] = buffer[1].im;
438  }
439 
440  cbuff += buffer_linesize;
441  pbuff += buffer_linesize;
442  nbuff += buffer_linesize;
443  }
444 }
445 
446 static void filter_block3d1(FFTdnoizContext *s, int plane, float *pbuffer,
447  int jobnr)
448 {
449  PlaneContext *p = &s->planes[plane];
450  const int block = p->b;
451  const int buffer_linesize = p->buffer_linesize / sizeof(float);
452  const float depthx = (1 << (s->depth - 8)) * (1 << (s->depth - 8));
453  const float sigma = s->sigma * depthx / (2.f * s->block_size * s->block_size);
454  const float limit = 1.f - s->amount;
455  float *cbuffer = p->buffer[jobnr][CURRENT];
456  const int method = s->method;
457  float *cbuff = cbuffer;
458  float *pbuff = pbuffer;
459 
460  for (int i = 0; i < block; i++) {
461  for (int j = 0; j < block; j++) {
463  AVComplexFloat outbuffer[BSIZE];
464 
465  buffer[0].re = pbuff[2 * j ];
466  buffer[0].im = pbuff[2 * j + 1];
467 
468  buffer[1].re = cbuff[2 * j ];
469  buffer[1].im = cbuff[2 * j + 1];
470 
471  s->tx_r_fn(s->fft_r[jobnr], outbuffer, buffer, sizeof(AVComplexFloat));
472 
473  for (int z = 0; z < 2; z++) {
474  const float re = outbuffer[z].re;
475  const float im = outbuffer[z].im;
476  const float power = re * re + im * im;
477  float factor;
478 
479  switch (method) {
480  case 0:
481  factor = fmaxf(limit, (power - sigma) / (power + 1e-15f));
482  break;
483  case 1:
484  factor = power < sigma ? limit : 1.f;
485  break;
486  }
487 
488  outbuffer[z].re *= factor;
489  outbuffer[z].im *= factor;
490  }
491 
492  s->itx_r_fn(s->ifft_r[jobnr], buffer, outbuffer, sizeof(AVComplexFloat));
493 
494  cbuff[2 * j + 0] = buffer[1].re;
495  cbuff[2 * j + 1] = buffer[1].im;
496  }
497 
498  cbuff += buffer_linesize;
499  pbuff += buffer_linesize;
500  }
501 }
502 
503 static void filter_block2d(FFTdnoizContext *s, int plane,
504  int jobnr)
505 {
506  PlaneContext *p = &s->planes[plane];
507  const int block = p->b;
508  const int method = s->method;
509  const int buffer_linesize = p->buffer_linesize / sizeof(float);
510  const float depthx = (1 << (s->depth - 8)) * (1 << (s->depth - 8));
511  const float sigma = s->sigma * depthx / (s->block_size * s->block_size);
512  const float limit = 1.f - s->amount;
513  float *buff = p->buffer[jobnr][CURRENT];
514 
515  for (int i = 0; i < block; i++) {
516  for (int j = 0; j < block; j++) {
517  float factor, power, re, im;
518 
519  re = buff[j * 2 ];
520  im = buff[j * 2 + 1];
521  power = re * re + im * im;
522  switch (method) {
523  case 0:
524  factor = fmaxf(limit, (power - sigma) / (power + 1e-15f));
525  break;
526  case 1:
527  factor = power < sigma ? limit : 1.f;
528  break;
529  }
530 
531  buff[j * 2 ] *= factor;
532  buff[j * 2 + 1] *= factor;
533  }
534 
535  buff += buffer_linesize;
536  }
537 }
538 
539 static int denoise(AVFilterContext *ctx, void *arg,
540  int jobnr, int nb_jobs)
541 {
542  FFTdnoizContext *s = ctx->priv;
543  AVFrame *out = arg;
544 
545  for (int plane = 0; plane < s->nb_planes; plane++) {
546  PlaneContext *p = &s->planes[plane];
547  const int nox = p->nox;
548  const int noy = p->noy;
549  const int slice_start = (noy * jobnr) / nb_jobs;
550  const int slice_end = (noy * (jobnr+1)) / nb_jobs;
551 
552  if (!((1 << plane) & s->planesf) || ctx->is_disabled)
553  continue;
554 
555  for (int y = slice_start; y < slice_end; y++) {
556  for (int x = 0; x < nox; x++) {
557  if (s->next) {
558  import_block(s, s->next->data[plane], s->next->linesize[plane],
559  p->buffer[jobnr][NEXT], p->buffer_linesize, plane,
560  jobnr, y, x);
561  }
562 
563  if (s->prev) {
564  import_block(s, s->prev->data[plane], s->prev->linesize[plane],
565  p->buffer[jobnr][PREV], p->buffer_linesize, plane,
566  jobnr, y, x);
567  }
568 
569  import_block(s, s->cur->data[plane], s->cur->linesize[plane],
570  p->buffer[jobnr][CURRENT], p->buffer_linesize, plane,
571  jobnr, y, x);
572 
573  if (s->next && s->prev) {
574  filter_block3d2(s, plane, p->buffer[jobnr][PREV], p->buffer[jobnr][NEXT], jobnr);
575  } else if (s->next) {
576  filter_block3d1(s, plane, p->buffer[jobnr][NEXT], jobnr);
577  } else if (s->prev) {
578  filter_block3d1(s, plane, p->buffer[jobnr][PREV], jobnr);
579  } else {
580  filter_block2d(s, plane, jobnr);
581  }
582 
583  export_block(s, out->data[plane], out->linesize[plane],
584  p->buffer[jobnr][CURRENT], p->buffer_linesize, plane,
585  jobnr, y, x);
586  }
587  }
588  }
589 
590  return 0;
591 }
592 
594 {
595  AVFilterContext *ctx = inlink->dst;
596  FFTdnoizContext *s = ctx->priv;
597  AVFilterLink *outlink = ctx->outputs[0];
598  int direct, plane;
599  AVFrame *out;
600 
601  if (s->nb_next > 0 && s->nb_prev > 0) {
602  av_frame_free(&s->prev);
603  s->prev = s->cur;
604  s->cur = s->next;
605  s->next = in;
606 
607  if (!s->prev && s->cur) {
608  s->prev = av_frame_clone(s->cur);
609  if (!s->prev)
610  return AVERROR(ENOMEM);
611  }
612  if (!s->cur)
613  return 0;
614  } else if (s->nb_next > 0) {
615  av_frame_free(&s->cur);
616  s->cur = s->next;
617  s->next = in;
618 
619  if (!s->cur)
620  return 0;
621  } else if (s->nb_prev > 0) {
622  av_frame_free(&s->prev);
623  s->prev = s->cur;
624  s->cur = in;
625 
626  if (!s->prev)
627  s->prev = av_frame_clone(s->cur);
628  if (!s->prev)
629  return AVERROR(ENOMEM);
630  } else {
631  s->cur = in;
632  }
633 
634  if (av_frame_is_writable(in) && s->nb_next == 0 && s->nb_prev == 0) {
635  direct = 1;
636  out = in;
637  } else {
638  direct = 0;
639  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
640  if (!out)
641  return AVERROR(ENOMEM);
642  av_frame_copy_props(out, s->cur);
643  }
644 
646  FFMIN(s->planes[0].noy, s->nb_threads));
647 
648  for (plane = 0; plane < s->nb_planes; plane++) {
649  PlaneContext *p = &s->planes[plane];
650 
651  if (!((1 << plane) & s->planesf) || ctx->is_disabled) {
652  if (!direct)
653  av_image_copy_plane(out->data[plane], out->linesize[plane],
654  s->cur->data[plane], s->cur->linesize[plane],
655  p->planewidth * (1 + (s->depth > 8)), p->planeheight);
656  continue;
657  }
658  }
659 
660  if (s->nb_next == 0 && s->nb_prev == 0) {
661  if (direct) {
662  s->cur = NULL;
663  } else {
664  av_frame_free(&s->cur);
665  }
666  }
667  return ff_filter_frame(outlink, out);
668 }
669 
670 static int request_frame(AVFilterLink *outlink)
671 {
672  AVFilterContext *ctx = outlink->src;
673  FFTdnoizContext *s = ctx->priv;
674  int ret = 0;
675 
676  ret = ff_request_frame(ctx->inputs[0]);
677 
678  if (ret == AVERROR_EOF && (s->nb_next > 0)) {
679  AVFrame *buf;
680 
681  if (s->next && s->nb_next > 0)
682  buf = av_frame_clone(s->next);
683  else if (s->cur)
684  buf = av_frame_clone(s->cur);
685  else
686  buf = av_frame_clone(s->prev);
687  if (!buf)
688  return AVERROR(ENOMEM);
689 
690  ret = filter_frame(ctx->inputs[0], buf);
691  if (ret < 0)
692  return ret;
693  ret = AVERROR_EOF;
694  }
695 
696  return ret;
697 }
698 
700 {
701  FFTdnoizContext *s = ctx->priv;
702  int i;
703 
704  for (i = 0; i < 4; i++) {
705  PlaneContext *p = &s->planes[i];
706 
707  for (int j = 0; j < s->nb_threads; j++) {
708  av_freep(&p->hdata[j]);
709  av_freep(&p->vdata[j]);
710  av_freep(&p->hdata_out[j]);
711  av_freep(&p->vdata_out[j]);
712  av_freep(&p->buffer[j][PREV]);
713  av_freep(&p->buffer[j][CURRENT]);
714  av_freep(&p->buffer[j][NEXT]);
715  }
716  }
717 
718  for (i = 0; i < s->nb_threads; i++) {
719  av_tx_uninit(&s->fft[i]);
720  av_tx_uninit(&s->ifft[i]);
721  av_tx_uninit(&s->fft_r[i]);
722  av_tx_uninit(&s->ifft_r[i]);
723  }
724 
725  av_frame_free(&s->prev);
726  av_frame_free(&s->cur);
727  av_frame_free(&s->next);
728 }
729 
730 static const AVFilterPad fftdnoiz_inputs[] = {
731  {
732  .name = "default",
733  .type = AVMEDIA_TYPE_VIDEO,
734  .filter_frame = filter_frame,
735  .config_props = config_input,
736  },
737 };
738 
739 static const AVFilterPad fftdnoiz_outputs[] = {
740  {
741  .name = "default",
742  .type = AVMEDIA_TYPE_VIDEO,
743  .request_frame = request_frame,
744  },
745 };
746 
748  .name = "fftdnoiz",
749  .description = NULL_IF_CONFIG_SMALL("Denoise frames using 3D FFT."),
750  .priv_size = sizeof(FFTdnoizContext),
751  .uninit = uninit,
755  .priv_class = &fftdnoiz_class,
758  .process_command = ff_filter_process_command,
759 };
filter_block2d
static void filter_block2d(FFTdnoizContext *s, int plane, int jobnr)
Definition: vf_fftdnoiz.c:503
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:101
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:502
CURRENT
@ CURRENT
Definition: vf_fftdnoiz.c:33
denoise
static int denoise(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_fftdnoiz.c:539
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:481
FFTdnoizContext::import_row
void(* import_row)(AVComplexFloat *dst, uint8_t *src, int rw, float scale, float *win, int off)
Definition: vf_fftdnoiz.c:80
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
PlaneContext::buffer_linesize
int buffer_linesize
Definition: vf_fftdnoiz.c:50
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
opt.h
request_frame
static int request_frame(AVFilterLink *outlink)
Definition: vf_fftdnoiz.c:670
MAX_THREADS
#define MAX_THREADS
Definition: vf_fftdnoiz.c:30
out
FILE * out
Definition: movenc.c:54
FFTdnoizContext::window
int window
Definition: vf_fftdnoiz.c:61
FFTdnoizContext::export_row
void(* export_row)(AVComplexFloat *src, uint8_t *dst, int rw, int depth, float *win)
Definition: vf_fftdnoiz.c:81
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1009
FFTdnoizContext::nb_next
int nb_next
Definition: vf_fftdnoiz.c:63
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2858
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
PlaneContext::buffer
float * buffer[MAX_THREADS][BSIZE]
Definition: vf_fftdnoiz.c:46
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
AVTXContext
Definition: tx_priv.h:228
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
import_row16
static void import_row16(AVComplexFloat *dst, uint8_t *srcp, int rw, float scale, float *win, int off)
Definition: vf_fftdnoiz.c:161
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:116
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:494
im
float im
Definition: fft.c:79
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
pixdesc.h
av_clip_uintp2_c
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
Clip a signed integer to an unsigned power of two range.
Definition: common.h:275
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:501
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:496
AVOption
AVOption.
Definition: opt.h:251
PlaneContext::b
int b
Definition: vf_fftdnoiz.c:42
fftdnoiz_outputs
static const AVFilterPad fftdnoiz_outputs[]
Definition: vf_fftdnoiz.c:739
FFTdnoizContext::ifft
AVTXContext * ifft[MAX_THREADS]
Definition: vf_fftdnoiz.c:74
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:459
FFTdnoizContext::sigma
float sigma
Definition: vf_fftdnoiz.c:56
ff_request_frame
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Definition: avfilter.c:410
float.h
AVComplexFloat
Definition: tx.h:27
WIN_FUNC_OPTION
#define WIN_FUNC_OPTION(win_func_opt_name, win_func_offset, flag, default_window_func)
Definition: window_func.h:37
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:175
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:497
av_tx_init
av_cold int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type, int inv, int len, const void *scale, uint64_t flags)
Initialize a transform context with the given configuration (i)MDCTs with an odd length are currently...
Definition: tx.c:883
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:439
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
win
static float win(SuperEqualizerContext *s, float n, int N)
Definition: af_superequalizer.c:119
FFTdnoizContext::cur
AVFrame * cur
Definition: vf_fftdnoiz.c:66
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2898
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:493
AVComplexFloat::im
float im
Definition: tx.h:28
window
static SDL_Window * window
Definition: ffplay.c:365
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:477
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
PlaneContext::planeheight
int planeheight
Definition: vf_fftdnoiz.c:40
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:475
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:503
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:457
import_block
static void import_block(FFTdnoizContext *s, uint8_t *srcp, int src_linesize, float *buffer, int buffer_linesize, int plane, int jobnr, int y, int x)
Definition: vf_fftdnoiz.c:273
scale
static av_always_inline float scale(float x, float s)
Definition: vf_v360.c:1389
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:443
TFLAGS
#define TFLAGS
Definition: vf_fftdnoiz.c:86
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
MAX_BLOCK
#define MAX_BLOCK
Definition: vf_fftdnoiz.c:29
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:462
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:276
PlaneContext::vdata
AVComplexFloat * vdata[MAX_THREADS]
Definition: vf_fftdnoiz.c:47
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:471
av_tx_fn
void(* av_tx_fn)(AVTXContext *s, void *out, void *in, ptrdiff_t stride)
Function pointer to a function to perform the transform.
Definition: tx.h:127
FFTdnoizContext::overlap
float overlap
Definition: vf_fftdnoiz.c:59
FFTdnoizContext::itx_r_fn
av_tx_fn itx_r_fn
Definition: vf_fftdnoiz.c:78
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:79
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:479
float
float
Definition: af_crystalizer.c:122
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:256
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:480
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:472
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2010
direct
static void fn() direct(const ftype *in, const ctype *ir, int len, ftype *out)
Definition: afir_template.c:248
AV_TX_FLOAT_FFT
@ AV_TX_FLOAT_FFT
Standard complex to complex FFT with sample data type of AVComplexFloat, AVComplexDouble or AVComplex...
Definition: tx.h:47
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:500
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:456
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
FFTdnoizContext::win
float win[MAX_BLOCK][MAX_BLOCK]
Definition: vf_fftdnoiz.c:72
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:470
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:442
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:474
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_fftdnoiz.c:114
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:190
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:80
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:440
ThreadData::dst
AVFrame * dst
Definition: vf_blend.c:56
PlaneContext::hdata
AVComplexFloat * hdata[MAX_THREADS]
Definition: vf_fftdnoiz.c:47
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:478
FFTdnoizContext::next
AVFrame * next
Definition: vf_fftdnoiz.c:66
FFTdnoizContext::tx_fn
av_tx_fn tx_fn
Definition: vf_fftdnoiz.c:77
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:603
PlaneContext::planewidth
int planewidth
Definition: vf_fftdnoiz.c:40
ThreadData::src
const uint8_t * src
Definition: vf_bm3d.c:55
FFTdnoizContext::fft_r
AVTXContext * fft_r[MAX_THREADS]
Definition: vf_fftdnoiz.c:75
FFTdnoizContext
Definition: vf_fftdnoiz.c:53
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:78
FFTdnoizContext::prev
AVFrame * prev
Definition: vf_fftdnoiz.c:66
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:461
PlaneContext
Definition: ffv1.h:62
generate_window_func
static void generate_window_func(float *lut, int N, int win_func, float *overlap)
Definition: window_func.h:76
PlaneContext::data_linesize
int data_linesize
Definition: vf_fftdnoiz.c:49
abs
#define abs(x)
Definition: cuda_runtime.h:35
WFUNC_HANNING
@ WFUNC_HANNING
Definition: window_func.h:29
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:460
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:474
FFTdnoizContext::nb_threads
int nb_threads
Definition: vf_fftdnoiz.c:70
FFTdnoizContext::depth
int depth
Definition: vf_fftdnoiz.c:68
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_fftdnoiz.c:181
filter_block3d2
static void filter_block3d2(FFTdnoizContext *s, int plane, float *pbuffer, float *nbuffer, int jobnr)
Definition: vf_fftdnoiz.c:384
f
f
Definition: af_crystalizer.c:122
BSIZE
@ BSIZE
Definition: vf_fftdnoiz.c:36
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:115
fmaxf
float fmaxf(float, float)
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:464
size
int size
Definition: twinvq_data.h:10344
AVComplexFloat::re
float re
Definition: tx.h:28
PlaneContext::o
int o
Definition: vf_fftdnoiz.c:43
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:466
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:533
FLAGS
#define FLAGS
Definition: vf_fftdnoiz.c:85
FFTdnoizContext::tx_r_fn
av_tx_fn tx_r_fn
Definition: vf_fftdnoiz.c:78
PREV
@ PREV
Definition: vf_fftdnoiz.c:34
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:873
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
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:498
av_tx_uninit
av_cold void av_tx_uninit(AVTXContext **ctx)
Frees a context and sets *ctx to NULL, does nothing when *ctx == NULL.
Definition: tx.c:294
filter_block3d1
static void filter_block3d1(FFTdnoizContext *s, int plane, float *pbuffer, int jobnr)
Definition: vf_fftdnoiz.c:446
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
FFTdnoizContext::amount
float amount
Definition: vf_fftdnoiz.c:57
FFTdnoizContext::nb_planes
int nb_planes
Definition: vf_fftdnoiz.c:69
FFTdnoizContext::planes
PlaneContext planes[4]
Definition: vf_fftdnoiz.c:71
PlaneContext::vdata_out
AVComplexFloat * vdata_out[MAX_THREADS]
Definition: vf_fftdnoiz.c:48
lrintf
#define lrintf(x)
Definition: libm_mips.h:72
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
FFTdnoizContext::planesf
int planesf
Definition: vf_fftdnoiz.c:64
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:476
common.h
PlaneContext::nox
int nox
Definition: vf_fftdnoiz.c:41
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:793
ThreadData
Used for passing data between threads.
Definition: dsddec.c:69
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
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:100
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
OFFSET
#define OFFSET(x)
Definition: vf_fftdnoiz.c:84
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:458
limit
static double limit(double x)
Definition: vf_pseudocolor.c:130
NEXT
@ NEXT
Definition: vf_fftdnoiz.c:35
FFTdnoizContext::itx_fn
av_tx_fn itx_fn
Definition: vf_fftdnoiz.c:77
AVFilter
Filter definition.
Definition: avfilter.h:171
FFTdnoizContext::nb_prev
int nb_prev
Definition: vf_fftdnoiz.c:62
ret
ret
Definition: filter_design.txt:187
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_fftdnoiz.c:699
export_block
static void export_block(FFTdnoizContext *s, uint8_t *dstp, int dst_linesize, float *buffer, int buffer_linesize, int plane, int jobnr, int y, int x)
Definition: vf_fftdnoiz.c:337
FFTdnoizContext::ifft_r
AVTXContext * ifft_r[MAX_THREADS]
Definition: vf_fftdnoiz.c:75
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:495
fftdnoiz_inputs
static const AVFilterPad fftdnoiz_inputs[]
Definition: vf_fftdnoiz.c:730
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:463
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:468
window_func.h
PlaneContext::hdata_out
AVComplexFloat * hdata_out[MAX_THREADS]
Definition: vf_fftdnoiz.c:48
power
static float power(float r, float g, float b, float max)
Definition: preserve_color.h:45
PlaneContext::noy
int noy
Definition: vf_fftdnoiz.c:41
ff_vf_fftdnoiz
const AVFilter ff_vf_fftdnoiz
Definition: vf_fftdnoiz.c:747
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:499
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
export_row16
static void export_row16(AVComplexFloat *src, uint8_t *dstp, int rw, int depth, float *win)
Definition: vf_fftdnoiz.c:173
av_clip_uint8
#define av_clip_uint8
Definition: common.h:101
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:415
factor
static const int factor[16]
Definition: vf_pp7.c:76
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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:127
desc
const char * desc
Definition: libsvtav1.c:83
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
import_row8
static void import_row8(AVComplexFloat *dst, uint8_t *src, int rw, float scale, float *win, int off)
Definition: vf_fftdnoiz.c:145
FFTdnoizContext::block_size
int block_size
Definition: vf_fftdnoiz.c:58
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FFTdnoizContext::fft
AVTXContext * fft[MAX_THREADS]
Definition: vf_fftdnoiz.c:74
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_fftdnoiz.c:593
PlaneContext::n
float n
Definition: vf_fftdnoiz.c:44
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
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
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:160
imgutils.h
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
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
export_row8
static void export_row8(AVComplexFloat *src, uint8_t *dst, int rw, int depth, float *win)
Definition: vf_fftdnoiz.c:155
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:465
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:469
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(fftdnoiz)
fftdnoiz_options
static const AVOption fftdnoiz_options[]
Definition: vf_fftdnoiz.c:87
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:441
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:142
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
BufferTypes
BufferTypes
Definition: vf_fftdnoiz.c:32
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:467
tx.h
re
float re
Definition: fft.c:79
FFTdnoizContext::method
int method
Definition: vf_fftdnoiz.c:60