FFmpeg
vf_deband.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 Niklas Haas
3  * Copyright (c) 2015 Paul B Mahol
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a copy
6  * of this software and associated documentation files (the "Software"), to deal
7  * in the Software without restriction, including without limitation the rights
8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9  * copies of the Software, and to permit persons to whom the Software is
10  * furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  */
23 
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "avfilter.h"
27 #include "internal.h"
28 #include "video.h"
29 
30 typedef struct DebandContext {
31  const AVClass *class;
32 
33  int coupling;
34  float threshold[4];
35  int range;
36  int blur;
37  float direction;
38 
39  int nb_components;
40  int planewidth[4];
41  int planeheight[4];
42  int shift[2];
43  int thr[4];
44 
45  int *x_pos;
46  int *y_pos;
47 
48  int (*deband)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
49 } DebandContext;
50 
51 #define OFFSET(x) offsetof(DebandContext, x)
52 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
53 
54 static const AVOption deband_options[] = {
55  { "1thr", "set 1st plane threshold", OFFSET(threshold[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
56  { "2thr", "set 2nd plane threshold", OFFSET(threshold[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
57  { "3thr", "set 3rd plane threshold", OFFSET(threshold[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
58  { "4thr", "set 4th plane threshold", OFFSET(threshold[3]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
59  { "range", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
60  { "r", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
61  { "direction", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
62  { "d", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
63  { "blur", "set blur", OFFSET(blur), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
64  { "b", "set blur", OFFSET(blur), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
65  { "coupling", "set plane coupling", OFFSET(coupling), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
66  { "c", "set plane coupling", OFFSET(coupling), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
67  { NULL }
68 };
69 
70 AVFILTER_DEFINE_CLASS(deband);
71 
72 static int query_formats(AVFilterContext *ctx)
73 {
74  DebandContext *s = ctx->priv;
75 
76  static const enum AVPixelFormat pix_fmts[] = {
77  AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10,
78  AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
79  AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
80  AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
81  AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
82  AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ440P,
83  AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
84  AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
85  AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
86  AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
87  AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
88  AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
89  AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
90  AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
91  AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
92  AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
93  AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
94  AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
95  AV_PIX_FMT_NONE
96  };
97 
98  static const enum AVPixelFormat cpix_fmts[] = {
99  AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
100  AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P9,
101  AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10,
102  AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
103  AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUVA444P16,
104  AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
105  AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
106  AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
107  AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
108  AV_PIX_FMT_NONE
109  };
110 
111  return ff_set_common_formats_from_list(ctx, s->coupling ? cpix_fmts : pix_fmts);
112 }
113 
114 static float frand(int x, int y)
115 {
116  const float r = sinf(x * 12.9898f + y * 78.233f) * 43758.545f;
117 
118  return r - floorf(r);
119 }
120 
121 static int inline get_avg(int ref0, int ref1, int ref2, int ref3)
122 {
123  return (ref0 + ref1 + ref2 + ref3) / 4;
124 }
125 
126 typedef struct ThreadData {
127  AVFrame *in, *out;
128 } ThreadData;
129 
130 static int deband_8_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
131 {
132  DebandContext *s = ctx->priv;
133  ThreadData *td = arg;
134  AVFrame *in = td->in;
135  AVFrame *out = td->out;
136  int x, y, p;
137 
138  for (p = 0; p < s->nb_components; p++) {
139  const uint8_t *src_ptr = (const uint8_t *)in->data[p];
140  uint8_t *dst_ptr = (uint8_t *)out->data[p];
141  const int dst_linesize = out->linesize[p];
142  const int src_linesize = in->linesize[p];
143  const int thr = s->thr[p];
144  const int start = (s->planeheight[p] * jobnr ) / nb_jobs;
145  const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs;
146  const int w = s->planewidth[p] - 1;
147  const int h = s->planeheight[p] - 1;
148 
149  for (y = start; y < end; y++) {
150  const int pos = y * s->planewidth[0];
151 
152  for (x = 0; x < s->planewidth[p]; x++) {
153  const int x_pos = s->x_pos[pos + x];
154  const int y_pos = s->y_pos[pos + x];
155  const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
156  const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
157  const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
158  const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
159  const int src0 = src_ptr[y * src_linesize + x];
160 
161  if (s->blur) {
162  const int avg = get_avg(ref0, ref1, ref2, ref3);
163  const int diff = FFABS(src0 - avg);
164 
165  dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0;
166  } else {
167  dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) &&
168  (FFABS(src0 - ref1) < thr) &&
169  (FFABS(src0 - ref2) < thr) &&
170  (FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0;
171  }
172  }
173  }
174  }
175 
176  return 0;
177 }
178 
179 static int deband_8_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
180 {
181  DebandContext *s = ctx->priv;
182  ThreadData *td = arg;
183  AVFrame *in = td->in;
184  AVFrame *out = td->out;
185  const int start = (s->planeheight[0] * jobnr ) / nb_jobs;
186  const int end = (s->planeheight[0] * (jobnr+1)) / nb_jobs;
187  int x, y, p;
188 
189  for (y = start; y < end; y++) {
190  const int pos = y * s->planewidth[0];
191 
192  for (x = 0; x < s->planewidth[0]; x++) {
193  const int x_pos = s->x_pos[pos + x];
194  const int y_pos = s->y_pos[pos + x];
195  int avg[4], cmp[4] = { 0 }, src[4];
196 
197  for (p = 0; p < s->nb_components; p++) {
198  const uint8_t *src_ptr = (const uint8_t *)in->data[p];
199  const int src_linesize = in->linesize[p];
200  const int thr = s->thr[p];
201  const int w = s->planewidth[p] - 1;
202  const int h = s->planeheight[p] - 1;
203  const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
204  const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
205  const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
206  const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
207  const int src0 = src_ptr[y * src_linesize + x];
208 
209  src[p] = src0;
210  avg[p] = get_avg(ref0, ref1, ref2, ref3);
211 
212  if (s->blur) {
213  cmp[p] = FFABS(src0 - avg[p]) < thr;
214  } else {
215  cmp[p] = (FFABS(src0 - ref0) < thr) &&
216  (FFABS(src0 - ref1) < thr) &&
217  (FFABS(src0 - ref2) < thr) &&
218  (FFABS(src0 - ref3) < thr);
219  }
220  }
221 
222  for (p = 0; p < s->nb_components; p++)
223  if (!cmp[p])
224  break;
225  if (p == s->nb_components) {
226  for (p = 0; p < s->nb_components; p++) {
227  const int dst_linesize = out->linesize[p];
228 
229  out->data[p][y * dst_linesize + x] = avg[p];
230  }
231  } else {
232  for (p = 0; p < s->nb_components; p++) {
233  const int dst_linesize = out->linesize[p];
234 
235  out->data[p][y * dst_linesize + x] = src[p];
236  }
237  }
238  }
239  }
240 
241  return 0;
242 }
243 
244 static int deband_16_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
245 {
246  DebandContext *s = ctx->priv;
247  ThreadData *td = arg;
248  AVFrame *in = td->in;
249  AVFrame *out = td->out;
250  const int start = (s->planeheight[0] * jobnr ) / nb_jobs;
251  const int end = (s->planeheight[0] * (jobnr+1)) / nb_jobs;
252  int x, y, p, z;
253 
254  for (y = start; y < end; y++) {
255  const int pos = y * s->planewidth[0];
256 
257  for (x = 0; x < s->planewidth[0]; x++) {
258  const int x_pos = s->x_pos[pos + x];
259  const int y_pos = s->y_pos[pos + x];
260  int avg[4], cmp[4] = { 0 }, src[4];
261 
262  for (p = 0; p < s->nb_components; p++) {
263  const uint16_t *src_ptr = (const uint16_t *)in->data[p];
264  const int src_linesize = in->linesize[p] / 2;
265  const int thr = s->thr[p];
266  const int w = s->planewidth[p] - 1;
267  const int h = s->planeheight[p] - 1;
268  const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
269  const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
270  const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
271  const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
272  const int src0 = src_ptr[y * src_linesize + x];
273 
274  src[p] = src0;
275  avg[p] = get_avg(ref0, ref1, ref2, ref3);
276 
277  if (s->blur) {
278  cmp[p] = FFABS(src0 - avg[p]) < thr;
279  } else {
280  cmp[p] = (FFABS(src0 - ref0) < thr) &&
281  (FFABS(src0 - ref1) < thr) &&
282  (FFABS(src0 - ref2) < thr) &&
283  (FFABS(src0 - ref3) < thr);
284  }
285  }
286 
287  for (z = 0; z < s->nb_components; z++)
288  if (!cmp[z])
289  break;
290  if (z == s->nb_components) {
291  for (p = 0; p < s->nb_components; p++) {
292  const int dst_linesize = out->linesize[p] / 2;
293  uint16_t *dst = (uint16_t *)out->data[p] + y * dst_linesize + x;
294 
295  dst[0] = avg[p];
296  }
297  } else {
298  for (p = 0; p < s->nb_components; p++) {
299  const int dst_linesize = out->linesize[p] / 2;
300  uint16_t *dst = (uint16_t *)out->data[p] + y * dst_linesize + x;
301 
302  dst[0] = src[p];
303  }
304  }
305  }
306  }
307 
308  return 0;
309 }
310 
311 static int deband_16_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
312 {
313  DebandContext *s = ctx->priv;
314  ThreadData *td = arg;
315  AVFrame *in = td->in;
316  AVFrame *out = td->out;
317  int x, y, p;
318 
319  for (p = 0; p < s->nb_components; p++) {
320  const uint16_t *src_ptr = (const uint16_t *)in->data[p];
321  uint16_t *dst_ptr = (uint16_t *)out->data[p];
322  const int dst_linesize = out->linesize[p] / 2;
323  const int src_linesize = in->linesize[p] / 2;
324  const int thr = s->thr[p];
325  const int start = (s->planeheight[p] * jobnr ) / nb_jobs;
326  const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs;
327  const int w = s->planewidth[p] - 1;
328  const int h = s->planeheight[p] - 1;
329 
330  for (y = start; y < end; y++) {
331  const int pos = y * s->planewidth[0];
332 
333  for (x = 0; x < s->planewidth[p]; x++) {
334  const int x_pos = s->x_pos[pos + x];
335  const int y_pos = s->y_pos[pos + x];
336  const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
337  const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
338  const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
339  const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
340  const int src0 = src_ptr[y * src_linesize + x];
341 
342  if (s->blur) {
343  const int avg = get_avg(ref0, ref1, ref2, ref3);
344  const int diff = FFABS(src0 - avg);
345 
346  dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0;
347  } else {
348  dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) &&
349  (FFABS(src0 - ref1) < thr) &&
350  (FFABS(src0 - ref2) < thr) &&
351  (FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0;
352  }
353  }
354  }
355  }
356 
357  return 0;
358 }
359 
360 static int config_input(AVFilterLink *inlink)
361 {
362  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
363  AVFilterContext *ctx = inlink->dst;
364  DebandContext *s = ctx->priv;
365  const float direction = s->direction;
366  const int range = s->range;
367  int x, y;
368 
369  s->nb_components = desc->nb_components;
370 
371  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
372  s->planeheight[0] = s->planeheight[3] = inlink->h;
373  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
374  s->planewidth[0] = s->planewidth[3] = inlink->w;
375  s->shift[0] = desc->log2_chroma_w;
376  s->shift[1] = desc->log2_chroma_h;
377 
378  if (s->coupling)
379  s->deband = desc->comp[0].depth > 8 ? deband_16_coupling_c : deband_8_coupling_c;
380  else
381  s->deband = desc->comp[0].depth > 8 ? deband_16_c : deband_8_c;
382 
383  s->thr[0] = ((1 << desc->comp[0].depth) - 1) * s->threshold[0];
384  s->thr[1] = ((1 << desc->comp[1].depth) - 1) * s->threshold[1];
385  s->thr[2] = ((1 << desc->comp[2].depth) - 1) * s->threshold[2];
386  s->thr[3] = ((1 << desc->comp[3].depth) - 1) * s->threshold[3];
387 
388  if (!s->x_pos)
389  s->x_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->x_pos));
390  if (!s->y_pos)
391  s->y_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->y_pos));
392  if (!s->x_pos || !s->y_pos)
393  return AVERROR(ENOMEM);
394 
395  for (y = 0; y < s->planeheight[0]; y++) {
396  for (x = 0; x < s->planewidth[0]; x++) {
397  const float r = frand(x, y);
398  const float dir = direction < 0 ? -direction : r * direction;
399  const int dist = range < 0 ? -range : r * range;
400 
401  s->x_pos[y * s->planewidth[0] + x] = cosf(dir) * dist;
402  s->y_pos[y * s->planewidth[0] + x] = sinf(dir) * dist;
403  }
404  }
405 
406  return 0;
407 }
408 
409 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
410 {
411  AVFilterContext *ctx = inlink->dst;
412  AVFilterLink *outlink = ctx->outputs[0];
413  DebandContext *s = ctx->priv;
414  AVFrame *out;
415  ThreadData td;
416 
417  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
418  if (!out) {
419  av_frame_free(&in);
420  return AVERROR(ENOMEM);
421  }
422  av_frame_copy_props(out, in);
423 
424  td.in = in; td.out = out;
425  ff_filter_execute(ctx, s->deband, &td, NULL,
426  FFMIN3(s->planeheight[1], s->planeheight[2],
427  ff_filter_get_nb_threads(ctx)));
428 
429  av_frame_free(&in);
430  return ff_filter_frame(outlink, out);
431 }
432 
433 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
434  char *res, int res_len, int flags)
435 {
436  int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
437 
438  if (ret < 0)
439  return ret;
440 
441  return config_input(ctx->inputs[0]);
442 }
443 
444 static av_cold void uninit(AVFilterContext *ctx)
445 {
446  DebandContext *s = ctx->priv;
447 
448  av_freep(&s->x_pos);
449  av_freep(&s->y_pos);
450 }
451 
452 static const AVFilterPad avfilter_vf_deband_inputs[] = {
453  {
454  .name = "default",
455  .type = AVMEDIA_TYPE_VIDEO,
456  .config_props = config_input,
457  .filter_frame = filter_frame,
458  },
459 };
460 
461 static const AVFilterPad avfilter_vf_deband_outputs[] = {
462  {
463  .name = "default",
464  .type = AVMEDIA_TYPE_VIDEO,
465  },
466 };
467 
468 const AVFilter ff_vf_deband = {
469  .name = "deband",
470  .description = NULL_IF_CONFIG_SMALL("Debands video."),
471  .priv_size = sizeof(DebandContext),
472  .priv_class = &deband_class,
473  .uninit = uninit,
474  FILTER_INPUTS(avfilter_vf_deband_inputs),
475  FILTER_OUTPUTS(avfilter_vf_deband_outputs),
476  FILTER_QUERY_FUNC(query_formats),
477  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
478  .process_command = process_command,
479 };
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
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:481
td
#define td
Definition: regdef.h:70
deband_16_coupling_c
static int deband_16_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:244
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
av_clip
#define av_clip
Definition: common.h:95
r
const char * r
Definition: vf_curves.c:126
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
DebandContext::threshold
float threshold[4]
Definition: vf_deband.c:34
opt.h
DebandContext::range
int range
Definition: vf_deband.c:35
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2888
deband_8_coupling_c
static int deband_8_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:179
floorf
static __device__ float floorf(float a)
Definition: cuda_runtime.h:172
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:116
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:494
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:501
w
uint8_t w
Definition: llviddspenc.c:38
frand
static float frand(int x, int y)
Definition: vf_deband.c:114
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:496
AVOption
AVOption.
Definition: opt.h:251
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:167
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_deband.c:360
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_deband.c:409
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
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:473
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:154
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:497
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:439
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:351
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
DebandContext::y_pos
int * y_pos
Definition: vf_deband.c:46
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:493
deband_16_c
static int deband_16_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:311
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
cosf
#define cosf(x)
Definition: libm.h:78
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
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:443
DebandContext::deband
int(* deband)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:48
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
ff_vf_deband
const AVFilter ff_vf_deband
Definition: vf_deband.c:468
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
DebandContext::shift
int shift[2]
Definition: vf_deband.c:42
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:471
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
s
#define s(width, name)
Definition: cbs_vp9.c:256
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
FLAGS
#define FLAGS
Definition: vf_deband.c:52
ff_set_common_formats_from_list
int ff_set_common_formats_from_list(AVFilterContext *ctx, const int *fmts)
Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts))
Definition: formats.c:755
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:296
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:456
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_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
cmp
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
Definition: motion_est.c:262
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
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:64
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:440
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:478
DebandContext::planeheight
int planeheight[4]
Definition: vf_deband.c:41
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:607
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
DebandContext::coupling
int coupling
Definition: vf_deband.c:33
DebandContext::planewidth
int planewidth[4]
Definition: vf_deband.c:40
DebandContext
Definition: vf_deband.c:30
sinf
#define sinf(x)
Definition: libm.h:419
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
DebandContext::nb_components
int nb_components
Definition: vf_deband.c:39
get_avg
static int get_avg(int ref0, int ref1, int ref2, int ref3)
Definition: vf_deband.c:121
f
f
Definition: af_crystalizer.c:122
blur
static void blur(uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int pixsize)
Definition: vf_boxblur.c:160
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
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:464
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:466
avg
#define avg(a, b, c, d)
Definition: colorspacedsp_template.c:28
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:858
diff
static av_always_inline int diff(const struct color_info *a, const struct color_info *b, const int trans_thresh)
Definition: vf_paletteuse.c:162
avfilter_vf_deband_inputs
static const AVFilterPad avfilter_vf_deband_inputs[]
Definition: vf_deband.c:452
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
M_PI
#define M_PI
Definition: mathematics.h:52
internal.h
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:152
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
DebandContext::thr
int thr[4]
Definition: vf_deband.c:43
FFMIN3
#define FFMIN3(a, b, c)
Definition: macros.h:50
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:476
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
DebandContext::x_pos
int * x_pos
Definition: vf_deband.c:45
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
deband_options
static const AVOption deband_options[]
Definition: vf_deband.c:54
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:458
DebandContext::blur
int blur
Definition: vf_deband.c:36
avfilter_vf_deband_outputs
static const AVFilterPad avfilter_vf_deband_outputs[]
Definition: vf_deband.c:461
AVFilter
Filter definition.
Definition: avfilter.h:171
OFFSET
#define OFFSET(x)
Definition: vf_deband.c:51
ret
ret
Definition: filter_design.txt:187
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_deband.c:72
DebandContext::direction
float direction
Definition: vf_deband.c:37
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:495
pos
unsigned int pos
Definition: spdifenc.c:412
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
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(deband)
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
src0
const pixel *const src0
Definition: h264pred_template.c:420
AVFilterContext
An instance of a filter.
Definition: avfilter.h:402
deband_8_c
static int deband_8_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:130
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
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
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
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:375
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
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:469
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:441
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_deband.c:433
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
int
int
Definition: ffmpeg_filter.c:156
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_deband.c:444
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
Generated on Sun Feb 5 2023 19:22:03 for FFmpeg by   doxygen 1.8.17