FFmpeg
vf_geq.c
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1 /*
2  * Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (C) 2012 Clément Bœsch <u pkh me>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * Generic equation change filter
25  * Originally written by Michael Niedermayer for the MPlayer project, and
26  * ported by Clément Bœsch for FFmpeg.
27  */
28 
29 #include "libavutil/avassert.h"
30 #include "libavutil/avstring.h"
31 #include "libavutil/eval.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "formats.h"
36 #include "internal.h"
37 #include "video.h"
38 
39 #define MAX_NB_THREADS 32
40 #define NB_PLANES 4
41 
46 };
47 
48 static const char *const var_names[] = { "X", "Y", "W", "H", "N", "SW", "SH", "T", NULL };
50 
51 typedef struct GEQContext {
52  const AVClass *class;
53  AVExpr *e[NB_PLANES][MAX_NB_THREADS]; ///< expressions for each plane and thread
54  char *expr_str[4+3]; ///< expression strings for each plane
55  AVFrame *picref; ///< current input buffer
56  uint8_t *dst; ///< reference pointer to the 8bits output
57  uint16_t *dst16; ///< reference pointer to the 16bits output
58  float *dst32; ///< reference pointer to the 32bits output
59  double values[VAR_VARS_NB]; ///< expression values
60  int hsub, vsub; ///< chroma subsampling
61  int planes; ///< number of planes
63  int is_rgb;
64  int bps;
65 
68 } GEQContext;
69 
70 enum { Y = 0, U, V, A, G, B, R };
71 
72 #define OFFSET(x) offsetof(GEQContext, x)
73 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
74 
75 static const AVOption geq_options[] = {
76  { "lum_expr", "set luminance expression", OFFSET(expr_str[Y]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
77  { "lum", "set luminance expression", OFFSET(expr_str[Y]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
78  { "cb_expr", "set chroma blue expression", OFFSET(expr_str[U]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
79  { "cb", "set chroma blue expression", OFFSET(expr_str[U]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
80  { "cr_expr", "set chroma red expression", OFFSET(expr_str[V]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
81  { "cr", "set chroma red expression", OFFSET(expr_str[V]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
82  { "alpha_expr", "set alpha expression", OFFSET(expr_str[A]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
83  { "a", "set alpha expression", OFFSET(expr_str[A]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
84  { "red_expr", "set red expression", OFFSET(expr_str[R]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
85  { "r", "set red expression", OFFSET(expr_str[R]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
86  { "green_expr", "set green expression", OFFSET(expr_str[G]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
87  { "g", "set green expression", OFFSET(expr_str[G]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
88  { "blue_expr", "set blue expression", OFFSET(expr_str[B]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
89  { "b", "set blue expression", OFFSET(expr_str[B]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
90  { "interpolation","set interpolation method", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERP_BILINEAR}, 0, NB_INTERP-1, FLAGS, .unit = "interp" },
91  { "i", "set interpolation method", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERP_BILINEAR}, 0, NB_INTERP-1, FLAGS, .unit = "interp" },
92  { "nearest", "nearest interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_NEAREST}, 0, 0, FLAGS, .unit = "interp" },
93  { "n", "nearest interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_NEAREST}, 0, 0, FLAGS, .unit = "interp" },
94  { "bilinear", "bilinear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_BILINEAR}, 0, 0, FLAGS, .unit = "interp" },
95  { "b", "bilinear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_BILINEAR}, 0, 0, FLAGS, .unit = "interp" },
96  {NULL},
97 };
98 
100 
101 static inline double getpix(void *priv, double x, double y, int plane)
102 {
103  int xi, yi;
104  GEQContext *geq = priv;
105  AVFrame *picref = geq->picref;
106  const uint8_t *src = picref->data[plane];
107  int linesize = picref->linesize[plane];
108  const int w = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->width, geq->hsub) : picref->width;
109  const int h = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->height, geq->vsub) : picref->height;
110 
111  if (!src)
112  return 0;
113 
114  if (geq->interpolation == INTERP_BILINEAR) {
115  int xn, yn;
116 
117  xi = x = av_clipd(x, 0, w - 1);
118  yi = y = av_clipd(y, 0, h - 1);
119  xn = FFMIN(xi + 1, w - 1);
120  yn = FFMIN(yi + 1, h - 1);
121 
122  x -= xi;
123  y -= yi;
124 
125  if (geq->bps > 8 && geq->bps <= 16) {
126  const uint16_t *src16 = (const uint16_t*)src;
127  linesize /= 2;
128 
129  return (1-y)*((1-x)*src16[xi + yi * linesize] + x*src16[xn + yi * linesize])
130  + y *((1-x)*src16[xi + yn * linesize] + x*src16[xn + yn * linesize]);
131  } else if (geq->bps == 32) {
132  const float *src32 = (const float*)src;
133  linesize /= 4;
134 
135  return (1-y)*((1-x)*src32[xi + yi * linesize] + x*src32[xn + yi * linesize])
136  + y *((1-x)*src32[xi + yn * linesize] + x*src32[xn + yn * linesize]);
137  } else if (geq->bps == 8) {
138  return (1-y)*((1-x)*src[xi + yi * linesize] + x*src[xn + yi * linesize])
139  + y *((1-x)*src[xi + yn * linesize] + x*src[xn + yn * linesize]);
140  }
141  } else {
142  xi = av_clipd(x, 0, w - 1);
143  yi = av_clipd(y, 0, h - 1);
144 
145  if (geq->bps > 8 && geq->bps <= 16) {
146  const uint16_t *src16 = (const uint16_t*)src;
147  linesize /= 2;
148 
149  return src16[xi + yi * linesize];
150  } else if (geq->bps == 32) {
151  const float *src32 = (const float*)src;
152  linesize /= 4;
153 
154  return src32[xi + yi * linesize];
155  } else if (geq->bps == 8) {
156  return src[xi + yi * linesize];
157  }
158  }
159 
160  return 0;
161 }
162 
163 static int calculate_sums(GEQContext *geq, int plane, int w, int h)
164 {
165  int xi, yi;
166  AVFrame *picref = geq->picref;
167  const uint8_t *src = picref->data[plane];
168  int linesize = picref->linesize[plane];
169 
170  if (!geq->pixel_sums[plane])
171  geq->pixel_sums[plane] = av_malloc_array(w, h * sizeof (*geq->pixel_sums[plane]));
172  if (!geq->pixel_sums[plane])
173  return AVERROR(ENOMEM);
174  if (geq->bps == 32)
175  linesize /= 4;
176  else if (geq->bps > 8 && geq->bps <= 16)
177  linesize /= 2;
178  for (yi = 0; yi < h; yi ++) {
179  if (geq->bps > 8 && geq->bps <= 16) {
180  const uint16_t *src16 = (const uint16_t*)src;
181  double linesum = 0;
182 
183  for (xi = 0; xi < w; xi ++) {
184  linesum += src16[xi + yi * linesize];
185  geq->pixel_sums[plane][xi + yi * w] = linesum;
186  }
187  } else if (geq->bps == 8) {
188  double linesum = 0;
189 
190  for (xi = 0; xi < w; xi ++) {
191  linesum += src[xi + yi * linesize];
192  geq->pixel_sums[plane][xi + yi * w] = linesum;
193  }
194  } else if (geq->bps == 32) {
195  const float *src32 = (const float*)src;
196  double linesum = 0;
197 
198  for (xi = 0; xi < w; xi ++) {
199  linesum += src32[xi + yi * linesize];
200  geq->pixel_sums[plane][xi + yi * w] = linesum;
201  }
202  }
203  if (yi)
204  for (xi = 0; xi < w; xi ++) {
205  geq->pixel_sums[plane][xi + yi * w] += geq->pixel_sums[plane][xi + yi * w - w];
206  }
207  }
208  return 0;
209 }
210 
211 static inline double getpix_integrate_internal(GEQContext *geq, int x, int y, int plane, int w, int h)
212 {
213  if (x > w - 1) {
214  double boundary = getpix_integrate_internal(geq, w - 1, y, plane, w, h);
215  return 2*boundary - getpix_integrate_internal(geq, 2*(w - 1) - x, y, plane, w, h);
216  } else if (y > h - 1) {
217  double boundary = getpix_integrate_internal(geq, x, h - 1, plane, w, h);
218  return 2*boundary - getpix_integrate_internal(geq, x, 2*(h - 1) - y, plane, w, h);
219  } else if (x < 0) {
220  if (x == -1) return 0;
221  return - getpix_integrate_internal(geq, -x-2, y, plane, w, h);
222  } else if (y < 0) {
223  if (y == -1) return 0;
224  return - getpix_integrate_internal(geq, x, -y-2, plane, w, h);
225  }
226 
227  return geq->pixel_sums[plane][x + y * w];
228 }
229 
230 static inline double getpix_integrate(void *priv, double x, double y, int plane) {
231  GEQContext *geq = priv;
232  AVFrame *picref = geq->picref;
233  const uint8_t *src = picref->data[plane];
234  const int w = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->width, geq->hsub) : picref->width;
235  const int h = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->height, geq->vsub) : picref->height;
236 
237  if (!src)
238  return 0;
239 
240  return getpix_integrate_internal(geq, lrint(av_clipd(x, -w, 2*w)), lrint(av_clipd(y, -h, 2*h)), plane, w, h);
241 }
242 
243 //TODO: cubic interpolate
244 //TODO: keep the last few frames
245 static double lum(void *priv, double x, double y) { return getpix(priv, x, y, 0); }
246 static double cb(void *priv, double x, double y) { return getpix(priv, x, y, 1); }
247 static double cr(void *priv, double x, double y) { return getpix(priv, x, y, 2); }
248 static double alpha(void *priv, double x, double y) { return getpix(priv, x, y, 3); }
249 
250 static double lumsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 0); }
251 static double cbsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 1); }
252 static double crsub(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 2); }
253 static double alphasum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 3); }
254 
256 {
257  GEQContext *geq = ctx->priv;
258  int plane, ret = 0;
259 
260  if (!geq->expr_str[Y] && !geq->expr_str[G] && !geq->expr_str[B] && !geq->expr_str[R]) {
261  av_log(ctx, AV_LOG_ERROR, "A luminance or RGB expression is mandatory\n");
262  ret = AVERROR(EINVAL);
263  goto end;
264  }
265  geq->is_rgb = !geq->expr_str[Y];
266 
267  if ((geq->expr_str[Y] || geq->expr_str[U] || geq->expr_str[V]) && (geq->expr_str[G] || geq->expr_str[B] || geq->expr_str[R])) {
268  av_log(ctx, AV_LOG_ERROR, "Either YCbCr or RGB but not both must be specified\n");
269  ret = AVERROR(EINVAL);
270  goto end;
271  }
272 
273  if (!geq->expr_str[U] && !geq->expr_str[V]) {
274  /* No chroma at all: fallback on luma */
275  geq->expr_str[U] = av_strdup(geq->expr_str[Y]);
276  geq->expr_str[V] = av_strdup(geq->expr_str[Y]);
277  } else {
278  /* One chroma unspecified, fallback on the other */
279  if (!geq->expr_str[U]) geq->expr_str[U] = av_strdup(geq->expr_str[V]);
280  if (!geq->expr_str[V]) geq->expr_str[V] = av_strdup(geq->expr_str[U]);
281  }
282 
283  if (!geq->expr_str[A] && geq->bps != 32) {
284  geq->expr_str[A] = av_asprintf("%d", (1<<geq->bps) - 1);
285  } else if (!geq->expr_str[A]) {
286  geq->expr_str[A] = av_asprintf("%f", 1.f);
287  }
288  if (!geq->expr_str[G])
289  geq->expr_str[G] = av_strdup("g(X,Y)");
290  if (!geq->expr_str[B])
291  geq->expr_str[B] = av_strdup("b(X,Y)");
292  if (!geq->expr_str[R])
293  geq->expr_str[R] = av_strdup("r(X,Y)");
294 
295  if (geq->is_rgb ?
296  (!geq->expr_str[G] || !geq->expr_str[B] || !geq->expr_str[R])
297  :
298  (!geq->expr_str[U] || !geq->expr_str[V] || !geq->expr_str[A])) {
299  ret = AVERROR(ENOMEM);
300  goto end;
301  }
302 
303  for (plane = 0; plane < NB_PLANES; plane++) {
304  static double (*const p[])(void *, double, double) = {
305  lum , cb , cr , alpha ,
307  };
308  static const char *const func2_yuv_names[] = {
309  "lum" , "cb" , "cr" , "alpha" , "p",
310  "lumsum", "cbsum", "crsum", "alphasum", "psum",
311  NULL };
312  static const char *const func2_rgb_names[] = {
313  "g" , "b" , "r" , "alpha" , "p",
314  "gsum", "bsum", "rsum", "alphasum", "psum",
315  NULL };
316  const char *const *func2_names = geq->is_rgb ? func2_rgb_names : func2_yuv_names;
317  double (*const func2[])(void *, double, double) = {
318  lum , cb , cr , alpha , p[plane],
319  lumsum, cbsum, crsub, alphasum, p[plane + 4],
320  NULL };
321  int counter[10] = {0};
322 
323  for (int i = 0; i < MAX_NB_THREADS; i++) {
324  ret = av_expr_parse(&geq->e[plane][i], geq->expr_str[plane < 3 && geq->is_rgb ? plane+4 : plane], var_names,
325  NULL, NULL, func2_names, func2, 0, ctx);
326  if (ret < 0)
327  goto end;
328  }
329 
330  av_expr_count_func(geq->e[plane][0], counter, FF_ARRAY_ELEMS(counter), 2);
331  geq->needs_sum[plane] = counter[5] + counter[6] + counter[7] + counter[8] + counter[9];
332  }
333 
334 end:
335  return ret;
336 }
337 
339 {
340  GEQContext *geq = ctx->priv;
341  static const enum AVPixelFormat yuv_pix_fmts[] = {
360  };
361  static const enum AVPixelFormat rgb_pix_fmts[] = {
370  };
371  const enum AVPixelFormat *pix_fmts = geq->is_rgb ? rgb_pix_fmts : yuv_pix_fmts;
372 
374 }
375 
377 {
378  GEQContext *geq = inlink->dst->priv;
380 
381  av_assert0(desc);
382 
383  geq->hsub = desc->log2_chroma_w;
384  geq->vsub = desc->log2_chroma_h;
385  geq->bps = desc->comp[0].depth;
386  geq->planes = desc->nb_components;
387  return 0;
388 }
389 
390 typedef struct ThreadData {
391  int height;
392  int width;
393  int plane;
394  int linesize;
395 } ThreadData;
396 
397 static int slice_geq_filter(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
398 {
399  GEQContext *geq = ctx->priv;
400  ThreadData *td = arg;
401  const int height = td->height;
402  const int width = td->width;
403  const int plane = td->plane;
404  const int linesize = td->linesize;
405  const int slice_start = (height * jobnr) / nb_jobs;
406  const int slice_end = (height * (jobnr+1)) / nb_jobs;
407  int x, y;
408 
409  double values[VAR_VARS_NB];
410  values[VAR_W] = geq->values[VAR_W];
411  values[VAR_H] = geq->values[VAR_H];
412  values[VAR_N] = geq->values[VAR_N];
413  values[VAR_SW] = geq->values[VAR_SW];
414  values[VAR_SH] = geq->values[VAR_SH];
415  values[VAR_T] = geq->values[VAR_T];
416 
417  if (geq->bps == 8) {
418  uint8_t *ptr = geq->dst + linesize * slice_start;
419  for (y = slice_start; y < slice_end; y++) {
420  values[VAR_Y] = y;
421 
422  for (x = 0; x < width; x++) {
423  values[VAR_X] = x;
424  ptr[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
425  }
426  ptr += linesize;
427  }
428  } else if (geq->bps <= 16) {
429  uint16_t *ptr16 = geq->dst16 + (linesize/2) * slice_start;
430  for (y = slice_start; y < slice_end; y++) {
431  values[VAR_Y] = y;
432  for (x = 0; x < width; x++) {
433  values[VAR_X] = x;
434  ptr16[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
435  }
436  ptr16 += linesize/2;
437  }
438  } else {
439  float *ptr32 = geq->dst32 + (linesize/4) * slice_start;
440  for (y = slice_start; y < slice_end; y++) {
441  values[VAR_Y] = y;
442  for (x = 0; x < width; x++) {
443  values[VAR_X] = x;
444  ptr32[x] = av_expr_eval(geq->e[plane][jobnr], values, geq);
445  }
446  ptr32 += linesize/4;
447  }
448  }
449 
450  return 0;
451 }
452 
454 {
455  int plane;
456  AVFilterContext *ctx = inlink->dst;
457  const int nb_threads = FFMIN(MAX_NB_THREADS, ff_filter_get_nb_threads(ctx));
458  GEQContext *geq = ctx->priv;
459  AVFilterLink *outlink = inlink->dst->outputs[0];
460  AVFrame *out;
461 
462  geq->values[VAR_N] = inlink->frame_count_out,
463  geq->values[VAR_T] = in->pts == AV_NOPTS_VALUE ? NAN : in->pts * av_q2d(inlink->time_base),
464 
465  geq->picref = in;
466  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
467  if (!out) {
468  av_frame_free(&in);
469  return AVERROR(ENOMEM);
470  }
472 
473  for (plane = 0; plane < geq->planes && out->data[plane]; plane++) {
474  const int width = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->w, geq->hsub) : inlink->w;
475  const int height = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->h, geq->vsub) : inlink->h;
476  const int linesize = out->linesize[plane];
477  ThreadData td;
478 
479  geq->dst = out->data[plane];
480  geq->dst16 = (uint16_t*)out->data[plane];
481  geq->dst32 = (float*)out->data[plane];
482 
483  geq->values[VAR_W] = width;
484  geq->values[VAR_H] = height;
485  geq->values[VAR_SW] = width / (double)inlink->w;
486  geq->values[VAR_SH] = height / (double)inlink->h;
487 
488  td.width = width;
489  td.height = height;
490  td.plane = plane;
491  td.linesize = linesize;
492 
493  if (geq->needs_sum[plane])
494  calculate_sums(geq, plane, width, height);
495 
497  NULL, FFMIN(height, nb_threads));
498  }
499 
500  av_frame_free(&geq->picref);
501  return ff_filter_frame(outlink, out);
502 }
503 
505 {
506  int i;
507  GEQContext *geq = ctx->priv;
508 
509  for (i = 0; i < NB_PLANES; i++)
510  for (int j = 0; j < MAX_NB_THREADS; j++)
511  av_expr_free(geq->e[i][j]);
512  for (i = 0; i < NB_PLANES; i++)
513  av_freep(&geq->pixel_sums);
514 }
515 
516 static const AVFilterPad geq_inputs[] = {
517  {
518  .name = "default",
519  .type = AVMEDIA_TYPE_VIDEO,
520  .config_props = geq_config_props,
521  .filter_frame = geq_filter_frame,
522  },
523 };
524 
526  .name = "geq",
527  .description = NULL_IF_CONFIG_SMALL("Apply generic equation to each pixel."),
528  .priv_size = sizeof(GEQContext),
529  .init = geq_init,
530  .uninit = geq_uninit,
534  .priv_class = &geq_class,
536 };
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:112
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:501
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
Y
@ Y
Definition: vf_geq.c:70
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
getpix
static double getpix(void *priv, double x, double y, int plane)
Definition: vf_geq.c:101
var_names
static const char *const var_names[]
Definition: vf_geq.c:48
out
FILE * out
Definition: movenc.c:55
cb
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:246
geq_query_formats
static int geq_query_formats(AVFilterContext *ctx)
Definition: vf_geq.c:338
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
geq_uninit
static av_cold void geq_uninit(AVFilterContext *ctx)
Definition: vf_geq.c:504
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2965
A
@ A
Definition: vf_geq.c:70
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_asprintf
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:115
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:160
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
pixdesc.h
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:486
AVFrame::width
int width
Definition: frame.h:446
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:521
w
uint8_t w
Definition: llviddspenc.c:38
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:516
AVOption
AVOption.
Definition: opt.h:357
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:159
R
@ R
Definition: vf_geq.c:70
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:478
av_expr_count_func
int av_expr_count_func(AVExpr *e, unsigned *counter, int size, int arg)
Track the presence of user provided functions and their number of occurrences in a parsed expression.
Definition: eval.c:787
NB_INTERP
@ NB_INTERP
Definition: vf_geq.c:45
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
GEQContext::planes
int planes
number of planes
Definition: vf_geq.c:61
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
lumsum
static double lumsum(void *priv, double x, double y)
Definition: vf_geq.c:250
crsub
static double crsub(void *priv, double x, double y)
Definition: vf_geq.c:252
func2_names
static const char *const func2_names[]
Definition: af_afftfilt.c:99
ThreadData::width
int width
Definition: vf_avgblur.c:65
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:458
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:395
GEQContext::pixel_sums
double * pixel_sums[NB_PLANES]
Definition: vf_geq.c:66
V
@ V
Definition: vf_geq.c:70
formats.h
av_expr_parse
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
Definition: eval.c:710
VAR_SH
@ VAR_SH
Definition: vf_geq.c:49
geq_config_props
static int geq_config_props(AVFilterLink *inlink)
Definition: vf_geq.c:376
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
GEQContext::interpolation
int interpolation
Definition: vf_geq.c:62
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:496
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
Definition: mpeg12dec.c:1747
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:494
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
InterpolationMethods
InterpolationMethods
Definition: vf_geq.c:42
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:462
av_expr_free
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:358
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
B
@ B
Definition: vf_geq.c:70
avassert.h
lrint
#define lrint
Definition: tablegen.h:53
func2
static double(*const func2[])(void *, double, double)
Definition: af_afftfilt.c:100
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
MAX_NB_THREADS
#define MAX_NB_THREADS
Definition: vf_geq.c:39
VAR_N
@ VAR_N
Definition: vf_geq.c:49
ff_video_default_filterpad
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
Definition: video.c:37
OFFSET
#define OFFSET(x)
Definition: vf_geq.c:72
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:498
ThreadData::plane
int plane
Definition: vf_blend.c:60
width
#define width
VAR_Y
@ VAR_Y
Definition: vf_geq.c:49
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:499
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:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:60
ThreadData::height
int height
Definition: vf_avgblur.c:64
av_q2d
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
NB_PLANES
#define NB_PLANES
Definition: vf_geq.c:40
GEQContext::vsub
int vsub
chroma subsampling
Definition: vf_geq.c:60
ThreadData::linesize
int linesize
Definition: vf_avgblur.c:68
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:874
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:40
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:304
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
ctx
AVFormatContext * ctx
Definition: movenc.c:49
xi
#define xi(width, name, var, range_min, range_max, subs,...)
Definition: cbs_h2645.c:418
av_expr_eval
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition: eval.c:792
geq_options
static const AVOption geq_options[]
Definition: vf_geq.c:75
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:461
AVExpr
Definition: eval.c:158
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:73
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:511
NAN
#define NAN
Definition: mathematics.h:115
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
alpha
static double alpha(void *priv, double x, double y)
Definition: vf_geq.c:248
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:459
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:497
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:709
INTERP_NEAREST
@ INTERP_NEAREST
Definition: vf_geq.c:43
getpix_integrate
static double getpix_integrate(void *priv, double x, double y, int plane)
Definition: vf_geq.c:230
U
@ U
Definition: vf_geq.c:70
GEQContext::picref
AVFrame * picref
current input buffer
Definition: vf_geq.c:55
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:480
calculate_sums
static int calculate_sums(GEQContext *geq, int plane, int w, int h)
Definition: vf_geq.c:163
double
double
Definition: af_crystalizer.c:131
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
VAR_SW
@ VAR_SW
Definition: vf_geq.c:49
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:493
INTERP_BILINEAR
@ INTERP_BILINEAR
Definition: vf_geq.c:44
cbsum
static double cbsum(void *priv, double x, double y)
Definition: vf_geq.c:251
GEQContext::bps
int bps
Definition: vf_geq.c:64
VAR_W
@ VAR_W
Definition: vf_geq.c:49
GEQContext::e
AVExpr * e[NB_PLANES][MAX_NB_THREADS]
expressions for each plane and thread
Definition: vf_geq.c:53
eval.h
f
f
Definition: af_crystalizer.c:121
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:366
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:94
VAR_VARS_NB
@ VAR_VARS_NB
Definition: vf_geq.c:49
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:508
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
GEQContext::values
double values[VAR_VARS_NB]
expression values
Definition: vf_geq.c:59
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
VAR_X
@ VAR_X
Definition: vf_geq.c:49
geq_init
static av_cold int geq_init(AVFilterContext *ctx)
Definition: vf_geq.c:255
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:174
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
FLAGS
#define FLAGS
Definition: vf_geq.c:73
interpolation
static int interpolation(DeclickChannel *c, const double *src, int ar_order, double *acoefficients, int *index, int nb_errors, double *auxiliary, double *interpolated)
Definition: af_adeclick.c:390
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:147
GEQContext
Definition: vf_geq.c:51
uninit
static void uninit(AVBSFContext *ctx)
Definition: pcm_rechunk.c:68
GEQContext::is_rgb
int is_rgb
Definition: vf_geq.c:63
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
lum
static double lum(void *priv, double x, double y)
Definition: vf_geq.c:245
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:495
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:827
ThreadData
Used for passing data between threads.
Definition: dsddec.c:71
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
G
@ G
Definition: vf_geq.c:70
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
GEQContext::expr_str
char * expr_str[4+3]
expression strings for each plane
Definition: vf_geq.c:54
GEQContext::dst
uint8_t * dst
reference pointer to the 8bits output
Definition: vf_geq.c:56
GEQContext::dst16
uint16_t * dst16
reference pointer to the 16bits output
Definition: vf_geq.c:57
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
AVFilter
Filter definition.
Definition: avfilter.h:166
ret
ret
Definition: filter_design.txt:187
GEQContext::needs_sum
int needs_sum[NB_PLANES]
Definition: vf_geq.c:67
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:515
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
GEQContext::hsub
int hsub
Definition: vf_geq.c:60
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
AVFrame::height
int height
Definition: frame.h:446
geq_filter_frame
static int geq_filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_geq.c:453
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:245
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:509
values
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return values
Definition: filter_design.txt:263
slice_start
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
Definition: dec.c:700
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:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(geq)
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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:117
av_strdup
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:272
desc
const char * desc
Definition: libsvtav1.c:79
alphasum
static double alphasum(void *priv, double x, double y)
Definition: vf_geq.c:253
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:77
mem.h
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
yuv_pix_fmts
static enum AVPixelFormat yuv_pix_fmts[]
Definition: jpeg2000dec.c:178
cr
static double cr(void *priv, double x, double y)
Definition: vf_geq.c:247
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
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:80
VAR_T
@ VAR_T
Definition: vf_geq.c:49
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:419
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:79
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
h
h
Definition: vp9dsp_template.c:2038
GEQContext::dst32
float * dst32
reference pointer to the 32bits output
Definition: vf_geq.c:58
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
rgb_pix_fmts
static enum AVPixelFormat rgb_pix_fmts[]
Definition: jpeg2000dec.c:176
avstring.h
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:249
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:460
VAR_H
@ VAR_H
Definition: vf_geq.c:49
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:134
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:254
slice_geq_filter
static int slice_geq_filter(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_geq.c:397
ff_vf_geq
const AVFilter ff_vf_geq
Definition: vf_geq.c:525
geq_inputs
static const AVFilterPad geq_inputs[]
Definition: vf_geq.c:516
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:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:486
getpix_integrate_internal
static double getpix_integrate_internal(GEQContext *geq, int x, int y, int plane, int w, int h)
Definition: vf_geq.c:211
av_clipd
av_clipd
Definition: af_crystalizer.c:131