FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
vf_removegrain.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2012 Laurent de Soras
3  * Copyright (c) 2013 Fredrik Mellbin
4  * Copyright (c) 2015 Paul B Mahol
5  * Copyright (c) 2015 James Darnley
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include "libavutil/imgutils.h"
25 #include "libavutil/opt.h"
26 #include "libavutil/pixdesc.h"
27 #include "avfilter.h"
28 #include "formats.h"
29 #include "internal.h"
30 #include "removegrain.h"
31 #include "video.h"
32 
33 #define OFFSET(x) offsetof(RemoveGrainContext, x)
34 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
35 
36 static const AVOption removegrain_options[] = {
37  { "m0", "set mode for 1st plane", OFFSET(mode[0]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
38  { "m1", "set mode for 2nd plane", OFFSET(mode[1]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
39  { "m2", "set mode for 3rd plane", OFFSET(mode[2]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
40  { "m3", "set mode for 4th plane", OFFSET(mode[3]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
41  {NULL}
42 };
43 
44 AVFILTER_DEFINE_CLASS(removegrain);
45 
46 static int query_formats(AVFilterContext *ctx)
47 {
48  static const enum AVPixelFormat pix_fmts[] = {
49  AV_PIX_FMT_GRAY8,
50  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
51  AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
52  AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
53  AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
54  AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
55  AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
56  AV_PIX_FMT_NONE
57  };
58 
59  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
60  if (!fmts_list)
61  return AVERROR(ENOMEM);
62  return ff_set_common_formats(ctx, fmts_list);
63 }
64 
65 #define REMOVE_GRAIN_SORT_AXIS \
66  const int ma1 = FFMAX(a1, a8); \
67  const int mi1 = FFMIN(a1, a8); \
68  const int ma2 = FFMAX(a2, a7); \
69  const int mi2 = FFMIN(a2, a7); \
70  const int ma3 = FFMAX(a3, a6); \
71  const int mi3 = FFMIN(a3, a6); \
72  const int ma4 = FFMAX(a4, a5); \
73  const int mi4 = FFMIN(a4, a5);
74 
75 static int mode01(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
76 {
77  const int mi = FFMIN(FFMIN(FFMIN(a1, a2), FFMIN(a3, a4)), FFMIN(FFMIN(a5, a6), FFMIN(a7, a8)));
78  const int ma = FFMAX(FFMAX(FFMAX(a1, a2), FFMAX(a3, a4)), FFMAX(FFMAX(a5, a6), FFMAX(a7, a8)));
79 
80  return av_clip(c, mi, ma);
81 }
82 
83 static int cmp_int(const void *p1, const void *p2)
84 {
85  int left = *(const int *)p1;
86  int right = *(const int *)p2;
87 
88  return ((left > right) - (left < right));
89 }
90 
91 static int mode02(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
92 {
93  int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };
94 
95  qsort(&a, 8, sizeof(a[0]), cmp_int);
96 
97  return av_clip(c, a[2 - 1 ], a[7 - 1]);
98 }
99 
100 static int mode03(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
101 {
102  int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };
103 
104  qsort(&a, 8, sizeof(a[0]), cmp_int);
105 
106  return av_clip(c, a[3 - 1 ], a[6 - 1]);
107 }
108 
109 static int mode04(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
110 {
111  int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };
112 
113  qsort(&a, 8, sizeof(a[0]), cmp_int);
114 
115  return av_clip(c, a[4 - 1 ], a[5 - 1]);
116 }
117 
118 static int mode05(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
119 {
120  REMOVE_GRAIN_SORT_AXIS
121 
122  const int c1 = FFABS(c - av_clip(c, mi1, ma1));
123  const int c2 = FFABS(c - av_clip(c, mi2, ma2));
124  const int c3 = FFABS(c - av_clip(c, mi3, ma3));
125  const int c4 = FFABS(c - av_clip(c, mi4, ma4));
126 
127  const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
128 
129  /* When adding SIMD notice the return order here: 4, 2, 3, 1. */
130  if (mindiff == c4) {
131  return av_clip(c, mi4, ma4);
132  } else if (mindiff == c2) {
133  return av_clip(c, mi2, ma2);
134  } else if (mindiff == c3) {
135  return av_clip(c, mi3, ma3);
136  }
137 
138  return av_clip(c, mi1, ma1);
139 }
140 
141 static int mode06(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
142 {
143  REMOVE_GRAIN_SORT_AXIS
144 
145  const int d1 = ma1 - mi1;
146  const int d2 = ma2 - mi2;
147  const int d3 = ma3 - mi3;
148  const int d4 = ma4 - mi4;
149 
150  const int cli1 = av_clip(c, mi1, ma1);
151  const int cli2 = av_clip(c, mi2, ma2);
152  const int cli3 = av_clip(c, mi3, ma3);
153  const int cli4 = av_clip(c, mi4, ma4);
154 
155  const int c1 = av_clip_uint16((FFABS(c - cli1) << 1) + d1);
156  const int c2 = av_clip_uint16((FFABS(c - cli2) << 1) + d2);
157  const int c3 = av_clip_uint16((FFABS(c - cli3) << 1) + d3);
158  const int c4 = av_clip_uint16((FFABS(c - cli4) << 1) + d4);
159 
160  const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
161 
162  if (mindiff == c4) {
163  return cli4;
164  } else if (mindiff == c2) {
165  return cli2;
166  } else if (mindiff == c3) {
167  return cli3;
168  }
169 
170  return cli1;
171 }
172 
173 static int mode07(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
174 {
175  REMOVE_GRAIN_SORT_AXIS
176 
177  const int d1 = ma1 - mi1;
178  const int d2 = ma2 - mi2;
179  const int d3 = ma3 - mi3;
180  const int d4 = ma4 - mi4;
181 
182  const int cli1 = av_clip(c, mi1, ma1);
183  const int cli2 = av_clip(c, mi2, ma2);
184  const int cli3 = av_clip(c, mi3, ma3);
185  const int cli4 = av_clip(c, mi4, ma4);
186 
187  const int c1 = FFABS(c - cli1) + d1;
188  const int c2 = FFABS(c - cli2) + d2;
189  const int c3 = FFABS(c - cli3) + d3;
190  const int c4 = FFABS(c - cli4) + d4;
191 
192  const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
193 
194  if (mindiff == c4) {
195  return cli4;
196  } else if (mindiff == c2) {
197  return cli2;
198  } else if (mindiff == c3) {
199  return cli3;
200  }
201 
202  return cli1;
203 }
204 
205 static int mode08(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
206 {
207  REMOVE_GRAIN_SORT_AXIS
208 
209  const int d1 = ma1 - mi1;
210  const int d2 = ma2 - mi2;
211  const int d3 = ma3 - mi3;
212  const int d4 = ma4 - mi4;
213 
214  const int cli1 = av_clip(c, mi1, ma1);
215  const int cli2 = av_clip(c, mi2, ma2);
216  const int cli3 = av_clip(c, mi3, ma3);
217  const int cli4 = av_clip(c, mi4, ma4);
218 
219  const int c1 = av_clip_uint16(FFABS(c - cli1) + (d1 << 1));
220  const int c2 = av_clip_uint16(FFABS(c - cli2) + (d2 << 1));
221  const int c3 = av_clip_uint16(FFABS(c - cli3) + (d3 << 1));
222  const int c4 = av_clip_uint16(FFABS(c - cli4) + (d4 << 1));
223 
224  const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
225 
226  if (mindiff == c4) {
227  return cli4;
228  } else if (mindiff == c2) {
229  return cli2;
230  } else if (mindiff == c3) {
231  return cli3;
232  }
233 
234  return cli1;
235 }
236 
237 static int mode09(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
238 {
239  REMOVE_GRAIN_SORT_AXIS
240 
241  const int d1 = ma1 - mi1;
242  const int d2 = ma2 - mi2;
243  const int d3 = ma3 - mi3;
244  const int d4 = ma4 - mi4;
245 
246  const int mindiff = FFMIN(FFMIN(d1, d2), FFMIN(d3, d4));
247 
248  if (mindiff == d4) {
249  return av_clip(c, mi4, ma4);
250  } else if (mindiff == d2) {
251  return av_clip(c, mi2, ma2);
252  } else if (mindiff == d3) {
253  return av_clip(c, mi3, ma3);
254  }
255 
256  return av_clip(c, mi1, ma1);
257 }
258 
259 static int mode10(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
260 {
261  const int d1 = FFABS(c - a1);
262  const int d2 = FFABS(c - a2);
263  const int d3 = FFABS(c - a3);
264  const int d4 = FFABS(c - a4);
265  const int d5 = FFABS(c - a5);
266  const int d6 = FFABS(c - a6);
267  const int d7 = FFABS(c - a7);
268  const int d8 = FFABS(c - a8);
269 
270  const int mindiff = FFMIN(FFMIN(FFMIN(d1, d2), FFMIN(d3, d4)),
271  FFMIN(FFMIN(d5, d6), FFMIN(d7, d8)));
272 
273  if (mindiff == d7) return a7;
274  if (mindiff == d8) return a8;
275  if (mindiff == d6) return a6;
276  if (mindiff == d2) return a2;
277  if (mindiff == d3) return a3;
278  if (mindiff == d1) return a1;
279  if (mindiff == d5) return a5;
280 
281  return a4;
282 }
283 
284 static int mode1112(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
285 {
286  const int sum = 4 * c + 2 * (a2 + a4 + a5 + a7) + a1 + a3 + a6 + a8;
287  const int val = (sum + 8) >> 4;
288 
289  return val;
290 }
291 
292 static int mode1314(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
293 {
294  const int d1 = FFABS(a1 - a8);
295  const int d2 = FFABS(a2 - a7);
296  const int d3 = FFABS(a3 - a6);
297 
298  const int mindiff = FFMIN(FFMIN(d1, d2), d3);
299 
300  if (mindiff == d2) {
301  return (a2 + a7 + 1) >> 1;
302  }
303  if (mindiff == d3) {
304  return (a3 + a6 + 1) >> 1;
305  }
306 
307  return (a1 + a8 + 1) >> 1;
308 }
309 
310 static int mode1516(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
311 {
312  const int d1 = FFABS(a1 - a8);
313  const int d2 = FFABS(a2 - a7);
314  const int d3 = FFABS(a3 - a6);
315 
316  const int mindiff = FFMIN(FFMIN(d1, d2), d3);
317  const int average = (2 * (a2 + a7) + a1 + a3 + a6 + a8 + 4) >> 3;
318 
319  if (mindiff == d2) {
320  return av_clip(average, FFMIN(a2, a7), FFMAX(a2, a7));
321  }
322  if (mindiff == d3) {
323  return av_clip(average, FFMIN(a3, a6), FFMAX(a3, a6));
324  }
325 
326  return av_clip(average, FFMIN(a1, a8), FFMAX(a1, a8));
327 }
328 
329 static int mode17(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
330 {
331  REMOVE_GRAIN_SORT_AXIS
332 
333  const int l = FFMAX(FFMAX(mi1, mi2), FFMAX(mi3, mi4));
334  const int u = FFMIN(FFMIN(ma1, ma2), FFMIN(ma3, ma4));
335 
336  return av_clip(c, FFMIN(l, u), FFMAX(l, u));
337 }
338 
339 static int mode18(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
340 {
341  const int d1 = FFMAX(FFABS(c - a1), FFABS(c - a8));
342  const int d2 = FFMAX(FFABS(c - a2), FFABS(c - a7));
343  const int d3 = FFMAX(FFABS(c - a3), FFABS(c - a6));
344  const int d4 = FFMAX(FFABS(c - a4), FFABS(c - a5));
345 
346  const int mindiff = FFMIN(FFMIN(d1, d2), FFMIN(d3, d4));
347 
348  if (mindiff == d4) {
349  return av_clip(c, FFMIN(a4, a5), FFMAX(a4, a5));
350  }
351  if (mindiff == d2) {
352  return av_clip(c, FFMIN(a2, a7), FFMAX(a2, a7));
353  }
354  if (mindiff == d3) {
355  return av_clip(c, FFMIN(a3, a6), FFMAX(a3, a6));
356  }
357 
358  return av_clip(c, FFMIN(a1, a8), FFMAX(a1, a8));
359 }
360 
361 static int mode19(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
362 {
363  const int sum = a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8;
364  const int val = (sum + 4) >> 3;
365 
366  return val;
367 }
368 
369 static int mode20(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
370 {
371  const int sum = a1 + a2 + a3 + a4 + c + a5 + a6 + a7 + a8;
372  const int val = (sum + 4) / 9;
373 
374  return val;
375 }
376 
377 static int mode21(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
378 {
379  const int l1l = (a1 + a8) >> 1;
380  const int l2l = (a2 + a7) >> 1;
381  const int l3l = (a3 + a6) >> 1;
382  const int l4l = (a4 + a5) >> 1;
383 
384  const int l1h = (a1 + a8 + 1) >> 1;
385  const int l2h = (a2 + a7 + 1) >> 1;
386  const int l3h = (a3 + a6 + 1) >> 1;
387  const int l4h = (a4 + a5 + 1) >> 1;
388 
389  const int mi = FFMIN(FFMIN(l1l, l2l), FFMIN(l3l, l4l));
390  const int ma = FFMAX(FFMAX(l1h, l2h), FFMAX(l3h, l4h));
391 
392  return av_clip(c, mi, ma);
393 }
394 
395 static int mode22(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
396 {
397  const int l1 = (a1 + a8 + 1) >> 1;
398  const int l2 = (a2 + a7 + 1) >> 1;
399  const int l3 = (a3 + a6 + 1) >> 1;
400  const int l4 = (a4 + a5 + 1) >> 1;
401 
402  const int mi = FFMIN(FFMIN(l1, l2), FFMIN(l3, l4));
403  const int ma = FFMAX(FFMAX(l1, l2), FFMAX(l3, l4));
404 
405  return av_clip(c, mi, ma);
406 }
407 
408 static int mode23(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
409 {
410  REMOVE_GRAIN_SORT_AXIS
411 
412  const int linediff1 = ma1 - mi1;
413  const int linediff2 = ma2 - mi2;
414  const int linediff3 = ma3 - mi3;
415  const int linediff4 = ma4 - mi4;
416 
417  const int u1 = FFMIN(c - ma1, linediff1);
418  const int u2 = FFMIN(c - ma2, linediff2);
419  const int u3 = FFMIN(c - ma3, linediff3);
420  const int u4 = FFMIN(c - ma4, linediff4);
421  const int u = FFMAX(FFMAX(FFMAX(u1, u2), FFMAX(u3, u4)), 0);
422 
423  const int d1 = FFMIN(mi1 - c, linediff1);
424  const int d2 = FFMIN(mi2 - c, linediff2);
425  const int d3 = FFMIN(mi3 - c, linediff3);
426  const int d4 = FFMIN(mi4 - c, linediff4);
427  const int d = FFMAX(FFMAX(FFMAX(d1, d2), FFMAX(d3, d4)), 0);
428 
429  return c - u + d; // This probably will never overflow.
430 }
431 
432 static int mode24(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
433 {
434  REMOVE_GRAIN_SORT_AXIS
435 
436  const int linediff1 = ma1 - mi1;
437  const int linediff2 = ma2 - mi2;
438  const int linediff3 = ma3 - mi3;
439  const int linediff4 = ma4 - mi4;
440 
441  const int tu1 = c - ma1;
442  const int tu2 = c - ma2;
443  const int tu3 = c - ma3;
444  const int tu4 = c - ma4;
445 
446  const int u1 = FFMIN(tu1, linediff1 - tu1);
447  const int u2 = FFMIN(tu2, linediff2 - tu2);
448  const int u3 = FFMIN(tu3, linediff3 - tu3);
449  const int u4 = FFMIN(tu4, linediff4 - tu4);
450  const int u = FFMAX(FFMAX(FFMAX(u1, u2), FFMAX(u3, u4)), 0);
451 
452  const int td1 = mi1 - c;
453  const int td2 = mi2 - c;
454  const int td3 = mi3 - c;
455  const int td4 = mi4 - c;
456 
457  const int d1 = FFMIN(td1, linediff1 - td1);
458  const int d2 = FFMIN(td2, linediff2 - td2);
459  const int d3 = FFMIN(td3, linediff3 - td3);
460  const int d4 = FFMIN(td4, linediff4 - td4);
461  const int d = FFMAX(FFMAX(FFMAX(d1, d2), FFMAX(d3, d4)), 0);
462 
463  return c - u + d; // This probably will never overflow.
464 }
465 
466 static int config_input(AVFilterLink *inlink)
467 {
468  RemoveGrainContext *s = inlink->dst->priv;
469  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
470  int i;
471 
472  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
473 
474  s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
475  s->planeheight[0] = s->planeheight[3] = inlink->h;
476  s->planewidth[1] = s->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
477  s->planewidth[0] = s->planewidth[3] = inlink->w;
478 
479  for (i = 0; i < s->nb_planes; i++) {
480  switch (s->mode[i]) {
481  case 1: s->rg[i] = mode01; break;
482  case 2: s->rg[i] = mode02; break;
483  case 3: s->rg[i] = mode03; break;
484  case 4: s->rg[i] = mode04; break;
485  case 5: s->rg[i] = mode05; break;
486  case 6: s->rg[i] = mode06; break;
487  case 7: s->rg[i] = mode07; break;
488  case 8: s->rg[i] = mode08; break;
489  case 9: s->rg[i] = mode09; break;
490  case 10: s->rg[i] = mode10; break;
491  case 11: s->rg[i] = mode1112; break;
492  case 12: s->rg[i] = mode1112; break;
493  case 13: s->skip_odd = 1;
494  s->rg[i] = mode1314; break;
495  case 14: s->skip_even = 1;
496  s->rg[i] = mode1314; break;
497  case 15: s->skip_odd = 1;
498  s->rg[i] = mode1516; break;
499  case 16: s->skip_even = 1;
500  s->rg[i] = mode1516; break;
501  case 17: s->rg[i] = mode17; break;
502  case 18: s->rg[i] = mode18; break;
503  case 19: s->rg[i] = mode19; break;
504  case 20: s->rg[i] = mode20; break;
505  case 21: s->rg[i] = mode21; break;
506  case 22: s->rg[i] = mode22; break;
507  case 23: s->rg[i] = mode23; break;
508  case 24: s->rg[i] = mode24; break;
509  }
510  }
511 
512  if (ARCH_X86)
513  ff_removegrain_init_x86(s);
514 
515  return 0;
516 }
517 
518 typedef struct ThreadData {
519  AVFrame *in, *out;
520  int plane;
521 } ThreadData;
522 
523 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
524 {
525  RemoveGrainContext *s = ctx->priv;
526  ThreadData *td = arg;
527  AVFrame *in = td->in;
528  AVFrame *out = td->out;
529  const int i = td->plane;
530  const int height = s->planeheight[i];
531  const int om = in->linesize[i] - 1;
532  const int o0 = in->linesize[i] ;
533  const int op = in->linesize[i] + 1;
534  int start = (height * jobnr ) / nb_jobs;
535  int end = (height * (jobnr+1)) / nb_jobs;
536  int x, y;
537 
538  start = FFMAX(1, start);
539  end = FFMIN(height-1, end);
540  for (y = start; y < end; y++) {
541  uint8_t *dst = out->data[i];
542  uint8_t *src = in->data[i];
543 
544  src = in->data[i] + y * in->linesize[i];
545  dst = out->data[i] + y * out->linesize[i];
546 
547  if (s->skip_even && !(y & 1)) {
548  memcpy(dst, src, s->planewidth[i]);
549  continue;
550  }
551  if (s->skip_odd && y & 1) {
552  memcpy(dst, src, s->planewidth[i]);
553  continue;
554  }
555 
556  *dst++ = *src++;
557 
558  if (s->fl[i]) {
559  int w_asm = (s->planewidth[i] - 2) & ~15;
560 
561  s->fl[i](dst, src, in->linesize[i], w_asm);
562 
563  x = 1 + w_asm;
564  dst += w_asm;
565  src += w_asm;
566  } else
567  x = 1;
568 
569  for (; x < s->planewidth[i] - 1; x++) {
570  const int a1 = src[-op];
571  const int a2 = src[-o0];
572  const int a3 = src[-om];
573  const int a4 = src[-1 ];
574  const int c = src[ 0 ];
575  const int a5 = src[ 1 ];
576  const int a6 = src[ om];
577  const int a7 = src[ o0];
578  const int a8 = src[ op];
579 
580  const int res = s->rg[i](c, a1, a2, a3, a4, a5, a6, a7, a8);
581 
582  *dst = res;
583  dst++, src++;
584  }
585  dst[0] = src[0];
586  }
587 
588  return 0;
589 }
590 
591 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
592 {
593  AVFilterContext *ctx = inlink->dst;
594  AVFilterLink *outlink = ctx->outputs[0];
595  RemoveGrainContext *s = ctx->priv;
596  ThreadData td;
597  AVFrame *out;
598  int i;
599 
600  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
601  if (!out) {
602  av_frame_free(&in);
603  return AVERROR(ENOMEM);
604  }
605  av_frame_copy_props(out, in);
606 
607  for (i = 0; i < s->nb_planes; i++) {
608  uint8_t *dst = out->data[i];
609  uint8_t *src = in->data[i];
610 
611  if (s->mode[i] == 0) {
612  av_image_copy_plane(dst, out->linesize[i],
613  src, in->linesize[i],
614  s->planewidth[i], s->planeheight[i]);
615  continue;
616  }
617 
618  memcpy(dst, src, s->planewidth[i]);
619 
620  td.in = in; td.out = out; td.plane = i;
621  ctx->internal->execute(ctx, filter_slice, &td, NULL,
622  FFMIN(s->planeheight[i], ctx->graph->nb_threads));
623 
624  src = in->data[i] + (s->planeheight[i] - 1) * in->linesize[i];
625  dst = out->data[i] + (s->planeheight[i] - 1) * out->linesize[i];
626  memcpy(dst, src, s->planewidth[i]);
627  }
628 
629  av_frame_free(&in);
630  return ff_filter_frame(outlink, out);
631 }
632 
633 static const AVFilterPad removegrain_inputs[] = {
634  {
635  .name = "default",
636  .type = AVMEDIA_TYPE_VIDEO,
637  .filter_frame = filter_frame,
638  .config_props = config_input,
639  },
640  { NULL }
641 };
642 
643 static const AVFilterPad removegrain_outputs[] = {
644  {
645  .name = "default",
646  .type = AVMEDIA_TYPE_VIDEO,
647  },
648  { NULL }
649 };
650 
651 AVFilter ff_vf_removegrain = {
652  .name = "removegrain",
653  .description = NULL_IF_CONFIG_SMALL("Remove grain."),
654  .priv_size = sizeof(RemoveGrainContext),
655  .query_formats = query_formats,
656  .inputs = removegrain_inputs,
657  .outputs = removegrain_outputs,
658  .priv_class = &removegrain_class,
659  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
660 };
NULL
#define NULL
Definition: coverity.c:32
val
const char const char void * val
Definition: avisynth_c.h:634
ff_removegrain_init_x86
void ff_removegrain_init_x86(RemoveGrainContext *rg)
Definition: vf_removegrain_init.c:50
s
const char * s
Definition: avisynth_c.h:631
ThreadData::out
AVFrame * out
Definition: vf_atadenoise.c:113
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2129
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
mi
#define mi
Definition: vf_colormatrix.c:113
mode08
static int mode08(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:205
AVOption
AVOption.
Definition: opt.h:255
ma
#define ma
Definition: vf_colormatrix.c:105
AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:68
imgutils.h
misc image utilities
outputs
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:248
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2169
avfilter.h
Main libavfilter public API header.
AV_OPT_TYPE_INT
Definition: opt.h:223
AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:188
filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_removegrain.c:523
ff_vf_removegrain
AVFilter ff_vf_removegrain
Definition: vf_removegrain.c:651
a1
#define a1
Definition: regdef.h:47
FLAGS
#define FLAGS
Definition: vf_removegrain.c:34
RemoveGrainContext::rg
int(* rg[4])(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: removegrain.h:35
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:109
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
mode24
static int mode24(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:432
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
AVFilterContext::graph
struct AVFilterGraph * graph
filtergraph this filter belongs to
Definition: avfilter.h:656
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:451
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:69
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1158
a3
#define a3
Definition: regdef.h:49
ThreadData::in
AVFrame * in
Definition: vf_atadenoise.c:113
AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:103
removegrain_options
static const AVOption removegrain_options[]
Definition: vf_removegrain.c:36
uint8_t
uint8_t
Definition: audio_convert.c:194
mode
mode
Definition: f_perms.c:27
opt.h
AVOptions.
mode19
static int mode19(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:361
end
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
ThreadData::plane
int plane
Definition: vf_blend.c:87
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:102
AVFilterGraph::nb_threads
int nb_threads
Maximum number of threads used by filters in this graph.
Definition: avfilter.h:1207
c1
static const uint64_t c1
Definition: murmur3.c:49
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:76
mode23
static int mode23(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:408
mode04
static int mode04(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:109
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_removegrain.c:46
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:63
AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:281
ff_set_common_formats
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:542
td
#define td
Definition: regdef.h:70
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
mode20
static int mode20(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:369
AVERROR
#define AVERROR(e)
Definition: error.h:43
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:148
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:175
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:654
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:442
arg
const char * arg
Definition: jacosubdec.c:66
mode1112
static int mode1112(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:284
FFMAX
#define FFMAX(a, b)
Definition: common.h:79
AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:67
mode1314
static int mode1314(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:292
cmp_int
static int cmp_int(const void *p1, const void *p2)
Definition: vf_removegrain.c:83
FFMIN
#define FFMIN(a, b)
Definition: common.h:81
y
float y
Definition: avf_showspectrum.c:96
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:75
mode09
static int mode09(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:237
FF_CEIL_RSHIFT
#define FF_CEIL_RSHIFT(a, b)
Definition: common.h:57
a2
#define a2
Definition: regdef.h:48
REMOVE_GRAIN_SORT_AXIS
#define REMOVE_GRAIN_SORT_AXIS
Definition: vf_removegrain.c:65
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:68
mode07
static int mode07(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:173
u
float u
Definition: avf_showspectrum.c:96
removegrain_inputs
static const AVFilterPad removegrain_inputs[]
Definition: vf_removegrain.c:633
mode01
static int mode01(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:75
a5
#define a5
Definition: regdef.h:51
src
AVS_Value src
Definition: avisynth_c.h:482
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_removegrain.c:466
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:199
AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:280
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
mode21
static int mode21(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:377
in
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
Definition: audio_convert.c:194
height
BYTE int const BYTE int int int height
Definition: avisynth_c.h:676
AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:69
AVFilter
Filter definition.
Definition: avfilter.h:470
inputs
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:239
removegrain_outputs
static const AVFilterPad removegrain_outputs[]
Definition: vf_removegrain.c:643
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:474
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:648
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:209
mode06
static int mode06(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:141
AVFilterContext::internal
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:679
flags
static int flags
Definition: cpu.c:47
mode18
static int mode18(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:339
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:182
mode10
static int mode10(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:259
op
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:78
AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
mode17
static int mode17(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:329
AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:71
mode03
static int mode03(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:100
AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:299
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
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:77
c2
static const uint64_t c2
Definition: murmur3.c:50
AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:70
AVFilterInternal::execute
avfilter_execute_func * execute
Definition: internal.h:164
a4
#define a4
Definition: regdef.h:50
OFFSET
#define OFFSET(x)
Definition: vf_removegrain.c:33
mode1516
static int mode1516(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:310
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
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:302
out
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
Definition: audio_convert.c:194
AVFilterContext
An instance of a filter.
Definition: avfilter.h:633
mode22
static int mode22(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:395
AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:101
start
void INT64 start
Definition: avisynth_c.h:553
mode02
static int mode02(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:91
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:193
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(removegrain)
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_removegrain.c:591
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:273
internal.h
internal API functions
mode05
static int mode05(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:118
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
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:553
RemoveGrainContext::fl
void(* fl[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int pixels)
Definition: removegrain.h:37
a
a
Definition: h264pred_template.c:468
Generated on Thu Sep 10 2015 11:39:04 for FFmpeg by   doxygen 1.8.6