FFmpeg  4.4
vf_lut2.c
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1 /*
2  * Copyright (c) 2016 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/attributes.h"
22 #include "libavutil/common.h"
23 #include "libavutil/eval.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "avfilter.h"
27 #include "drawutils.h"
28 #include "formats.h"
29 #include "internal.h"
30 #include "video.h"
31 #include "framesync.h"
32 
33 static const char *const var_names[] = {
34  "w", ///< width of the input video
35  "h", ///< height of the input video
36  "x", ///< input value for the pixel from input #1
37  "y", ///< input value for the pixel from input #2
38  "bdx", ///< input #1 video bitdepth
39  "bdy", ///< input #2 video bitdepth
40  NULL
41 };
42 
43 enum var_name {
51 };
52 
53 typedef struct LUT2Context {
54  const AVClass *class;
56 
57  int odepth;
58  char *comp_expr_str[4];
59 
62  uint16_t *lut[4]; ///< lookup table for each component
63  int width[4], height[4];
64  int widthx[4], heightx[4];
65  int widthy[4], heighty[4];
68  int nb_planes;
70  int tlut2;
71  AVFrame *prev_frame; /* only used with tlut2 */
72 
73  int (*lut2)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
74 } LUT2Context;
75 
76 typedef struct ThreadData {
78 } ThreadData;
79 
80 #define OFFSET(x) offsetof(LUT2Context, x)
81 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
82 #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
83 
84 static const AVOption options[] = {
85  { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
86  { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
87  { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
88  { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
89  { "d", "set output depth", OFFSET(odepth), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 16, .flags = FLAGS },
90  { NULL }
91 };
92 
94 {
95  LUT2Context *s = ctx->priv;
96  int i;
97 
98  ff_framesync_uninit(&s->fs);
99  av_frame_free(&s->prev_frame);
100 
101  for (i = 0; i < 4; i++) {
102  av_expr_free(s->comp_expr[i]);
103  s->comp_expr[i] = NULL;
104  av_freep(&s->comp_expr_str[i]);
105  av_freep(&s->lut[i]);
106  }
107 }
108 
109 #define BIT8_FMTS \
110  AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, \
111  AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, \
112  AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, \
113  AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \
114  AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, \
115  AV_PIX_FMT_GRAY8, AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
116 
117 #define BIT9_FMTS \
118  AV_PIX_FMT_GBRP9, AV_PIX_FMT_GRAY9, \
119  AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, \
120  AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
121 
122 #define BIT10_FMTS \
123  AV_PIX_FMT_GRAY10, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, \
124  AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, \
125  AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
126 
127 #define BIT12_FMTS \
128  AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, \
129  AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, \
130  AV_PIX_FMT_GRAY12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRP12,
131 
132 #define BIT14_FMTS \
133  AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, \
134  AV_PIX_FMT_GRAY14, AV_PIX_FMT_GBRP14,
135 
136 #define BIT16_FMTS \
137  AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, \
138  AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, \
139  AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GRAY16,
140 
142 {
143  LUT2Context *s = ctx->priv;
144  static const enum AVPixelFormat all_pix_fmts[] = {
145  BIT8_FMTS
146  BIT9_FMTS
147  BIT10_FMTS
148  BIT12_FMTS
150  };
151  static const enum AVPixelFormat bit8_pix_fmts[] = {
152  BIT8_FMTS
154  };
155  static const enum AVPixelFormat bit9_pix_fmts[] = {
156  BIT9_FMTS
158  };
159  static const enum AVPixelFormat bit10_pix_fmts[] = {
160  BIT10_FMTS
162  };
163  static const enum AVPixelFormat bit12_pix_fmts[] = {
164  BIT12_FMTS
166  };
167  static const enum AVPixelFormat bit14_pix_fmts[] = {
168  BIT14_FMTS
170  };
171  static const enum AVPixelFormat bit16_pix_fmts[] = {
172  BIT16_FMTS
174  };
175  const enum AVPixelFormat *pix_fmts;
176  int ret;
177 
178  if (s->tlut2 || !s->odepth)
180 
181  ret = ff_formats_ref(ff_make_format_list(all_pix_fmts), &ctx->inputs[0]->outcfg.formats);
182  if (ret < 0)
183  return ret;
184 
185  switch (s->odepth) {
186  case 8: pix_fmts = bit8_pix_fmts; break;
187  case 9: pix_fmts = bit9_pix_fmts; break;
188  case 10: pix_fmts = bit10_pix_fmts; break;
189  case 12: pix_fmts = bit12_pix_fmts; break;
190  case 14: pix_fmts = bit14_pix_fmts; break;
191  case 16: pix_fmts = bit16_pix_fmts; break;
192  default: av_log(ctx, AV_LOG_ERROR, "Unsupported output bit depth %d.\n", s->odepth);
193  return AVERROR(EINVAL);
194  }
195 
196  return ff_formats_ref(ff_make_format_list(pix_fmts), &ctx->outputs[0]->incfg.formats);
197 }
198 
199 static int config_inputx(AVFilterLink *inlink)
200 {
201  AVFilterContext *ctx = inlink->dst;
202  LUT2Context *s = ctx->priv;
204  int hsub = desc->log2_chroma_w;
205  int vsub = desc->log2_chroma_h;
206 
207  s->nb_planesx = av_pix_fmt_count_planes(inlink->format);
208  s->heightx[1] = s->heightx[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
209  s->heightx[0] = s->heightx[3] = inlink->h;
210  s->widthx[1] = s->widthx[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
211  s->widthx[0] = s->widthx[3] = inlink->w;
212 
213  s->var_values[VAR_W] = inlink->w;
214  s->var_values[VAR_H] = inlink->h;
215  s->depthx = desc->comp[0].depth;
216  s->var_values[VAR_BITDEPTHX] = s->depthx;
217 
218  if (s->tlut2) {
219  s->depthy = desc->comp[0].depth;
220  s->var_values[VAR_BITDEPTHY] = s->depthy;
221  }
222 
223  return 0;
224 }
225 
226 static int config_inputy(AVFilterLink *inlink)
227 {
228  AVFilterContext *ctx = inlink->dst;
229  LUT2Context *s = ctx->priv;
231  int hsub = desc->log2_chroma_w;
232  int vsub = desc->log2_chroma_h;
233 
234  s->nb_planesy = av_pix_fmt_count_planes(inlink->format);
235  s->depthy = desc->comp[0].depth;
236  s->var_values[VAR_BITDEPTHY] = s->depthy;
237  s->heighty[1] = s->heighty[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
238  s->heighty[0] = s->heighty[3] = inlink->h;
239  s->widthy[1] = s->widthy[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
240  s->widthy[0] = s->widthy[3] = inlink->w;
241 
242  return 0;
243 }
244 
245 #define DEFINE_LUT2(zname, xname, yname, ztype, xtype, ytype, zdiv, xdiv, ydiv) \
246 static int lut2_##zname##_##xname##_##yname(AVFilterContext *ctx, \
247  void *arg, \
248  int jobnr, int nb_jobs) \
249 { \
250  LUT2Context *s = ctx->priv; \
251  ThreadData *td = arg; \
252  AVFrame *out = td->out; \
253  AVFrame *srcx = td->srcx; \
254  AVFrame *srcy = td->srcy; \
255  const int odepth = s->odepth; \
256  int p, y, x; \
257  \
258  for (p = 0; p < s->nb_planes; p++) { \
259  const int slice_start = (s->heightx[p] * jobnr) / nb_jobs; \
260  const int slice_end = (s->heightx[p] * (jobnr+1)) / nb_jobs; \
261  const uint16_t *lut = s->lut[p]; \
262  const xtype *srcxx; \
263  const ytype *srcyy; \
264  ztype *dst; \
265  \
266  dst = (ztype *)(out->data[p] + slice_start * out->linesize[p]); \
267  srcxx = (const xtype *)(srcx->data[p] + slice_start * srcx->linesize[p]);\
268  srcyy = (const ytype *)(srcy->data[p] + slice_start * srcy->linesize[p]);\
269  \
270  for (y = slice_start; y < slice_end; y++) { \
271  for (x = 0; x < s->widthx[p]; x++) { \
272  dst[x] = av_clip_uintp2_c(lut[(srcyy[x] << s->depthx) | srcxx[x]], odepth); \
273  } \
274  \
275  dst += out->linesize[p] / zdiv; \
276  srcxx += srcx->linesize[p] / xdiv; \
277  srcyy += srcy->linesize[p] / ydiv; \
278  } \
279  } \
280  return 0; \
281 }
282 
283 DEFINE_LUT2(8, 8, 8, uint8_t, uint8_t, uint8_t, 1, 1, 1)
284 DEFINE_LUT2(8, 8, 16, uint8_t, uint8_t, uint16_t, 1, 1, 2)
285 DEFINE_LUT2(8, 16, 8, uint8_t, uint16_t, uint8_t, 1, 2, 1)
286 DEFINE_LUT2(8, 16, 16, uint8_t, uint16_t, uint16_t, 1, 2, 2)
287 DEFINE_LUT2(16, 8, 8, uint16_t, uint8_t, uint8_t, 2, 1, 1)
288 DEFINE_LUT2(16, 8, 16, uint16_t, uint8_t, uint16_t, 2, 1, 2)
289 DEFINE_LUT2(16, 16, 8, uint16_t, uint16_t, uint8_t, 2, 2, 1)
290 DEFINE_LUT2(16, 16, 16, uint16_t, uint16_t, uint16_t, 2, 2, 2)
291 
293 {
294  AVFilterContext *ctx = fs->parent;
295  LUT2Context *s = fs->opaque;
296  AVFilterLink *outlink = ctx->outputs[0];
297  AVFrame *out, *srcx = NULL, *srcy = NULL;
298  int ret;
299 
300  if ((ret = ff_framesync_get_frame(&s->fs, 0, &srcx, 0)) < 0 ||
301  (ret = ff_framesync_get_frame(&s->fs, 1, &srcy, 0)) < 0)
302  return ret;
303 
304  if (ctx->is_disabled || !srcy) {
305  out = av_frame_clone(srcx);
306  if (!out)
307  return AVERROR(ENOMEM);
308  } else {
309  ThreadData td;
310 
311  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
312  if (!out)
313  return AVERROR(ENOMEM);
314  av_frame_copy_props(out, srcx);
315 
316  td.out = out;
317  td.srcx = srcx;
318  td.srcy = srcy;
319  ctx->internal->execute(ctx, s->lut2, &td, NULL, FFMIN(s->heightx[1], ff_filter_get_nb_threads(ctx)));
320  }
321 
322  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
323 
324  return ff_filter_frame(outlink, out);
325 }
326 
327 static int config_output(AVFilterLink *outlink)
328 {
329  AVFilterContext *ctx = outlink->src;
330  LUT2Context *s = ctx->priv;
331  int p, ret;
332 
333  s->depth = s->depthx + s->depthy;
334  s->nb_planes = s->nb_planesx;
335 
336  s->lut2 = s->depth > 16 ? lut2_16_16_16 : lut2_8_8_8;
337  if (s->odepth) {
338  if (s->depthx == 8 && s->depthy == 8 && s->odepth > 8)
339  s->lut2 = lut2_16_8_8;
340  if (s->depthx > 8 && s->depthy == 8 && s->odepth > 8)
341  s->lut2 = lut2_16_16_8;
342  if (s->depthx == 8 && s->depthy > 8 && s->odepth > 8)
343  s->lut2 = lut2_16_8_16;
344  if (s->depthx == 8 && s->depthy == 8 && s->odepth == 8)
345  s->lut2 = lut2_8_8_8;
346  if (s->depthx > 8 && s->depthy == 8 && s->odepth == 8)
347  s->lut2 = lut2_8_16_8;
348  if (s->depthx == 8 && s->depthy > 8 && s->odepth == 8)
349  s->lut2 = lut2_8_8_16;
350  if (s->depthx > 8 && s->depthy > 8 && s->odepth == 8)
351  s->lut2 = lut2_8_16_16;
352  } else {
353  s->odepth = s->depthx;
354  }
355 
356  for (p = 0; p < s->nb_planes; p++) {
357  if (!s->lut[p])
358  s->lut[p] = av_malloc_array(1 << s->depth, sizeof(uint16_t));
359  if (!s->lut[p])
360  return AVERROR(ENOMEM);
361  }
362 
363  for (p = 0; p < s->nb_planes; p++) {
364  double res;
365  int x, y;
366 
367  /* create the parsed expression */
368  av_expr_free(s->comp_expr[p]);
369  s->comp_expr[p] = NULL;
370  ret = av_expr_parse(&s->comp_expr[p], s->comp_expr_str[p],
371  var_names, NULL, NULL, NULL, NULL, 0, ctx);
372  if (ret < 0) {
374  "Error when parsing the expression '%s' for the component %d.\n",
375  s->comp_expr_str[p], p);
376  return AVERROR(EINVAL);
377  }
378 
379  /* compute the lut */
380  for (y = 0; y < (1 << s->depthy); y++) {
381  s->var_values[VAR_Y] = y;
382  for (x = 0; x < (1 << s->depthx); x++) {
383  s->var_values[VAR_X] = x;
384  res = av_expr_eval(s->comp_expr[p], s->var_values, s);
385  if (isnan(res)) {
387  "Error when evaluating the expression '%s' for the values %d and %d for the component %d.\n",
388  s->comp_expr_str[p], x, y, p);
389  return AVERROR(EINVAL);
390  }
391 
392  s->lut[p][(y << s->depthx) + x] = res;
393  }
394  }
395  }
396 
397  return 0;
398 }
399 
400 static int lut2_config_output(AVFilterLink *outlink)
401 {
402  AVFilterContext *ctx = outlink->src;
403  LUT2Context *s = ctx->priv;
404  AVFilterLink *srcx = ctx->inputs[0];
405  AVFilterLink *srcy = ctx->inputs[1];
406  FFFrameSyncIn *in;
408  int hsub = desc->log2_chroma_w;
409  int vsub = desc->log2_chroma_h;
410  int ret;
411 
412  outlink->w = srcx->w;
413  outlink->h = srcx->h;
414  outlink->time_base = srcx->time_base;
415  outlink->sample_aspect_ratio = srcx->sample_aspect_ratio;
416  outlink->frame_rate = srcx->frame_rate;
417 
418  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
419  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(outlink->h, vsub);
420  s->height[0] = s->height[3] = outlink->h;
421  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(outlink->w, hsub);
422  s->width[0] = s->width[3] = outlink->w;
423 
424  if (!s->odepth && srcx->format != srcy->format) {
425  av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
426  return AVERROR(EINVAL);
427  }
428 
429  if (srcx->w != srcy->w || srcx->h != srcy->h) {
430  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
431  "(size %dx%d) do not match the corresponding "
432  "second input link %s parameters (size %dx%d)\n",
433  ctx->input_pads[0].name, srcx->w, srcx->h,
434  ctx->input_pads[1].name,
435  srcy->w, srcy->h);
436  return AVERROR(EINVAL);
437  }
438 
439  if (s->nb_planesx != s->nb_planesy) {
440  av_log(ctx, AV_LOG_ERROR, "First input link %s number of planes "
441  "(%d) do not match the corresponding "
442  "second input link %s number of planes (%d)\n",
443  ctx->input_pads[0].name, s->nb_planesx,
444  ctx->input_pads[1].name, s->nb_planesy);
445  return AVERROR(EINVAL);
446  }
447 
448  if (s->nb_planesx != s->nb_planes) {
449  av_log(ctx, AV_LOG_ERROR, "First input link %s number of planes "
450  "(%d) do not match the corresponding "
451  "output link %s number of planes (%d)\n",
452  ctx->input_pads[0].name, s->nb_planesx,
453  ctx->output_pads[0].name, s->nb_planes);
454  return AVERROR(EINVAL);
455  }
456 
457  if (s->widthx[1] != s->widthy[1] || s->heightx[1] != s->heighty[1]) {
458  av_log(ctx, AV_LOG_ERROR, "First input link %s 2nd plane "
459  "(size %dx%d) do not match the corresponding "
460  "second input link %s 2nd plane (size %dx%d)\n",
461  ctx->input_pads[0].name, s->widthx[1], s->heightx[1],
462  ctx->input_pads[1].name,
463  s->widthy[1], s->heighty[1]);
464  return AVERROR(EINVAL);
465  }
466 
467  if (s->widthx[2] != s->widthy[2] || s->heightx[2] != s->heighty[2]) {
468  av_log(ctx, AV_LOG_ERROR, "First input link %s 3rd plane "
469  "(size %dx%d) do not match the corresponding "
470  "second input link %s 3rd plane (size %dx%d)\n",
471  ctx->input_pads[0].name, s->widthx[2], s->heightx[2],
472  ctx->input_pads[1].name,
473  s->widthy[2], s->heighty[2]);
474  return AVERROR(EINVAL);
475  }
476 
477  if (s->widthx[1] != s->width[1] || s->heightx[1] != s->height[1]) {
478  av_log(ctx, AV_LOG_ERROR, "First input link %s 2nd plane "
479  "(size %dx%d) do not match the corresponding "
480  "output link %s 2nd plane (size %dx%d)\n",
481  ctx->input_pads[0].name, s->widthx[1], s->heightx[1],
482  ctx->output_pads[0].name, s->width[1], s->height[1]);
483  return AVERROR(EINVAL);
484  }
485 
486  if (s->widthx[2] != s->width[2] || s->heightx[2] != s->height[2]) {
487  av_log(ctx, AV_LOG_ERROR, "First input link %s 3rd plane "
488  "(size %dx%d) do not match the corresponding "
489  "output link %s 3rd plane (size %dx%d)\n",
490  ctx->input_pads[0].name, s->widthx[2], s->heightx[2],
491  ctx->output_pads[0].name, s->width[2], s->height[2]);
492  return AVERROR(EINVAL);
493  }
494 
495  if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
496  return ret;
497 
498  in = s->fs.in;
499  in[0].time_base = srcx->time_base;
500  in[1].time_base = srcy->time_base;
501  in[0].sync = 2;
502  in[0].before = EXT_STOP;
503  in[0].after = EXT_INFINITY;
504  in[1].sync = 1;
505  in[1].before = EXT_STOP;
506  in[1].after = EXT_INFINITY;
507  s->fs.opaque = s;
508  s->fs.on_event = process_frame;
509 
510  if ((ret = config_output(outlink)) < 0)
511  return ret;
512 
513  ret = ff_framesync_configure(&s->fs);
514  outlink->time_base = s->fs.time_base;
515 
516  return ret;
517 }
518 
520 {
521  LUT2Context *s = ctx->priv;
522  return ff_framesync_activate(&s->fs);
523 }
524 
525 static const AVFilterPad inputs[] = {
526  {
527  .name = "srcx",
528  .type = AVMEDIA_TYPE_VIDEO,
529  .config_props = config_inputx,
530  },
531  {
532  .name = "srcy",
533  .type = AVMEDIA_TYPE_VIDEO,
534  .config_props = config_inputy,
535  },
536  { NULL }
537 };
538 
539 static const AVFilterPad outputs[] = {
540  {
541  .name = "default",
542  .type = AVMEDIA_TYPE_VIDEO,
543  .config_props = lut2_config_output,
544  },
545  { NULL }
546 };
547 
548 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
549  char *res, int res_len, int flags)
550 {
551  int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
552 
553  if (ret < 0)
554  return ret;
555 
556  return config_output(ctx->outputs[0]);
557 }
558 
559 #define lut2_options options
560 
562 
564  .name = "lut2",
565  .description = NULL_IF_CONFIG_SMALL("Compute and apply a lookup table from two video inputs."),
566  .preinit = lut2_framesync_preinit,
567  .priv_size = sizeof(LUT2Context),
568  .priv_class = &lut2_class,
569  .uninit = uninit,
571  .activate = activate,
572  .inputs = inputs,
573  .outputs = outputs,
577 };
578 
579 #if CONFIG_TLUT2_FILTER
580 
581 static av_cold int init(AVFilterContext *ctx)
582 {
583  LUT2Context *s = ctx->priv;
584 
585  s->tlut2 = !strcmp(ctx->filter->name, "tlut2");
586 
587  return 0;
588 }
589 
590 static int tlut2_filter_frame(AVFilterLink *inlink, AVFrame *frame)
591 {
592  AVFilterContext *ctx = inlink->dst;
593  LUT2Context *s = ctx->priv;
594  AVFilterLink *outlink = ctx->outputs[0];
595 
596  if (s->prev_frame) {
597  AVFrame *out;
598 
599  if (ctx->is_disabled) {
601  } else {
602  ThreadData td;
603 
604  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
605  if (!out) {
606  av_frame_free(&s->prev_frame);
607  s->prev_frame = frame;
608  return AVERROR(ENOMEM);
609  }
610 
612 
613  td.out = out;
614  td.srcx = frame;
615  td.srcy = s->prev_frame;
616  ctx->internal->execute(ctx, s->lut2, &td, NULL, FFMIN(s->heightx[1], ff_filter_get_nb_threads(ctx)));
617  }
618  av_frame_free(&s->prev_frame);
619  s->prev_frame = frame;
620  return ff_filter_frame(outlink, out);
621  }
622  s->prev_frame = frame;
623  return 0;
624 }
625 
626 static const AVOption tlut2_options[] = {
627  { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
628  { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
629  { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
630  { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS },
631  { NULL }
632 };
633 
634 AVFILTER_DEFINE_CLASS(tlut2);
635 
636 static const AVFilterPad tlut2_inputs[] = {
637  {
638  .name = "default",
639  .type = AVMEDIA_TYPE_VIDEO,
640  .filter_frame = tlut2_filter_frame,
641  .config_props = config_inputx,
642  },
643  { NULL }
644 };
645 
646 static const AVFilterPad tlut2_outputs[] = {
647  {
648  .name = "default",
649  .type = AVMEDIA_TYPE_VIDEO,
650  .config_props = config_output,
651  },
652  { NULL }
653 };
654 
656  .name = "tlut2",
657  .description = NULL_IF_CONFIG_SMALL("Compute and apply a lookup table from two successive frames."),
658  .priv_size = sizeof(LUT2Context),
659  .priv_class = &tlut2_class,
661  .init = init,
662  .uninit = uninit,
663  .inputs = tlut2_inputs,
664  .outputs = tlut2_outputs,
668 };
669 
670 #endif
AVFilter ff_vf_tlut2
Macro definitions for various function/variable attributes.
#define av_cold
Definition: attributes.h:88
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} 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;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->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);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
uint8_t
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1094
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:882
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
Main libavfilter public API header.
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
#define flags(name, subs,...)
Definition: cbs_av1.c:561
#define s(width, name)
Definition: cbs_vp9.c:257
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
common internal and external API header
#define FFMIN(a, b)
Definition: common.h:105
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
#define NULL
Definition: coverity.c:32
static AVFrame * frame
misc drawing utilities
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:336
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition: eval.c:766
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:685
simple arithmetic expression evaluator
int
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add ref as a new reference to formats.
Definition: formats.c:466
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:587
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:124
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition: framesync.c:341
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
Definition: framesync.c:253
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:290
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:84
@ EXT_STOP
Completely stop all streams with this one.
Definition: framesync.h:65
@ EXT_INFINITY
Extend the frame to infinity.
Definition: framesync.h:75
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:134
#define AVERROR(e)
Definition: error.h:43
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:540
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
int i
Definition: input.c:407
static enum AVPixelFormat all_pix_fmts[]
Definition: jpeg2000dec.c:265
const char * arg
Definition: jacosubdec.c:66
#define AVFILTER_DEFINE_CLASS(fname)
Definition: internal.h:288
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:303
#define isnan(x)
Definition: libm.h:340
const char * desc
Definition: libsvtav1.c:79
AVOptions.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2613
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
#define td
Definition: regdef.h:70
var_name
Definition: setts_bsf.c:50
Describe the class of an AVClass context structure.
Definition: log.h:67
Definition: eval.c:157
An instance of a filter.
Definition: avfilter.h:341
A filter pad used for either input or output.
Definition: internal.h:54
const char * name
Pad name.
Definition: internal.h:60
Filter definition.
Definition: avfilter.h:145
const char * name
Filter name.
Definition: avfilter.h:149
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1699
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
AVOption.
Definition: opt.h:248
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
Input stream structure.
Definition: framesync.h:81
Frame sync structure.
Definition: framesync.h:146
double var_values[VAR_VARS_NB]
Definition: vf_lut2.c:61
int widthx[4]
Definition: vf_lut2.c:64
char * comp_expr_str[4]
Definition: vf_lut2.c:58
int tlut2
Definition: vf_lut2.c:70
int widthy[4]
Definition: vf_lut2.c:65
int heighty[4]
Definition: vf_lut2.c:65
uint16_t * lut[4]
lookup table for each component
Definition: vf_lut2.c:62
int height[4]
Definition: vf_lut2.c:63
int(* lut2)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_lut2.c:73
int nb_planesy
Definition: vf_lut2.c:67
int width[4]
Definition: vf_lut2.c:63
int depthx
Definition: vf_lut2.c:69
int nb_planes
Definition: vf_lut2.c:68
int nb_planesx
Definition: vf_lut2.c:66
FFFrameSync fs
Definition: vf_lut2.c:55
AVFrame * prev_frame
Definition: vf_lut2.c:71
int depth
Definition: vf_lut2.c:69
int odepth
Definition: vf_lut2.c:57
int heightx[4]
Definition: vf_lut2.c:64
AVExpr * comp_expr[4]
Definition: vf_lut2.c:60
int depthy
Definition: vf_lut2.c:69
Used for passing data between threads.
Definition: dsddec.c:67
AVFrame * srcy
Definition: vf_lut2.c:77
AVFrame * srcx
Definition: vf_lut2.c:77
AVFrame * out
Definition: af_adeclick.c:502
#define av_malloc_array(a, b)
#define av_freep(p)
#define av_log(a,...)
FILE * out
Definition: movenc.c:54
AVFormatContext * ctx
Definition: movenc.c:48
@ VAR_H
Definition: vf_lut2.c:45
@ VAR_BITDEPTHY
Definition: vf_lut2.c:49
@ VAR_W
Definition: vf_lut2.c:44
@ VAR_VARS_NB
Definition: vf_lut2.c:50
@ VAR_X
Definition: vf_lut2.c:46
@ VAR_BITDEPTHX
Definition: vf_lut2.c:48
@ VAR_Y
Definition: vf_lut2.c:47
AVFilter ff_vf_lut2
Definition: vf_lut2.c:563
static int lut2_config_output(AVFilterLink *outlink)
Definition: vf_lut2.c:400
#define BIT8_FMTS
Definition: vf_lut2.c:109
static int config_inputx(AVFilterLink *inlink)
Definition: vf_lut2.c:199
static const AVOption options[]
Definition: vf_lut2.c:84
#define TFLAGS
Definition: vf_lut2.c:82
static int query_formats(AVFilterContext *ctx)
Definition: vf_lut2.c:141
#define FLAGS
Definition: vf_lut2.c:81
static const AVFilterPad inputs[]
Definition: vf_lut2.c:525
#define DEFINE_LUT2(zname, xname, yname, ztype, xtype, ytype, zdiv, xdiv, ydiv)
Definition: vf_lut2.c:245
static int config_inputy(AVFilterLink *inlink)
Definition: vf_lut2.c:226
FRAMESYNC_DEFINE_CLASS(lut2, LUT2Context, fs)
static const AVFilterPad outputs[]
Definition: vf_lut2.c:539
#define BIT14_FMTS
Definition: vf_lut2.c:132
#define BIT16_FMTS
Definition: vf_lut2.c:136
#define BIT10_FMTS
Definition: vf_lut2.c:122
static const char *const var_names[]
Definition: vf_lut2.c:33
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_lut2.c:548
static int activate(AVFilterContext *ctx)
Definition: vf_lut2.c:519
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_lut2.c:93
#define BIT12_FMTS
Definition: vf_lut2.c:127
#define BIT9_FMTS
Definition: vf_lut2.c:117
#define OFFSET(x)
Definition: vf_lut2.c:80
static int config_output(AVFilterLink *outlink)
Definition: vf_lut2.c:327
static int process_frame(FFFrameSync *fs)
Definition: vf_lut2.c:292
static void hsub(htype *dst, const htype *src, int bins)
Definition: vf_median.c:75
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99