FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_estdif.c
Date: 2022-11-26 13:19:19
Exec Total Coverage
Lines: 0 166 0.0%
Branches: 0 104 0.0%

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1 /*
2 * Copyright (c) 2021 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/common.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 #include "avfilter.h"
26 #include "formats.h"
27 #include "internal.h"
28 #include "video.h"
29
30 typedef struct ESTDIFContext {
31 const AVClass *class;
32
33 int mode; ///< 0 is frame, 1 is field
34 int parity; ///< frame field parity
35 int deint; ///< which frames to deinterlace
36 int rslope; ///< best edge slope search radius
37 int redge; ///< best edge match search radius
38 float ecost; ///< edge cost for edge matching
39 float mcost; ///< middle cost for edge matching
40 float dcost; ///< distance cost for edge matching
41 int interp; ///< type of interpolation
42 int linesize[4]; ///< bytes of pixel data per line for each plane
43 int planewidth[4]; ///< width of each plane
44 int planeheight[4]; ///< height of each plane
45 int field; ///< which field are we on, 0 or 1
46 int eof;
47 int depth;
48 int max;
49 int nb_planes;
50 int nb_threads;
51 AVFrame *prev;
52
53 void (*interpolate)(struct ESTDIFContext *s, uint8_t *dst,
54 const uint8_t *prev_line, const uint8_t *next_line,
55 const uint8_t *prev2_line, const uint8_t *next2_line,
56 const uint8_t *prev3_line, const uint8_t *next3_line,
57 int x, int width, int rslope, int redge,
58 int depth, int *K);
59
60 unsigned (*mid_8[3])(const uint8_t *const prev,
61 const uint8_t *const next,
62 const uint8_t *const prev2,
63 const uint8_t *const next2,
64 const uint8_t *const prev3,
65 const uint8_t *const next3,
66 int end, int x, int k, int depth);
67
68 unsigned (*mid_16[3])(const uint16_t *const prev,
69 const uint16_t *const next,
70 const uint16_t *const prev2,
71 const uint16_t *const next2,
72 const uint16_t *const prev3,
73 const uint16_t *const next3,
74 int end, int x, int k, int depth);
75 } ESTDIFContext;
76
77 #define MAX_R 15
78 #define S (MAX_R * 2 + 1)
79
80 #define OFFSET(x) offsetof(ESTDIFContext, x)
81 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
82 #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
83
84 static const AVOption estdif_options[] = {
85 { "mode", "specify the mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "mode" },
86 CONST("frame", "send one frame for each frame", 0, "mode"),
87 CONST("field", "send one frame for each field", 1, "mode"),
88 { "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=-1}, -1, 1, FLAGS, "parity" },
89 CONST("tff", "assume top field first", 0, "parity"),
90 CONST("bff", "assume bottom field first", 1, "parity"),
91 CONST("auto", "auto detect parity", -1, "parity"),
92 { "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "deint" },
93 CONST("all", "deinterlace all frames", 0, "deint"),
94 CONST("interlaced", "only deinterlace frames marked as interlaced", 1, "deint"),
95 { "rslope", "specify the search radius for edge slope tracing", OFFSET(rslope), AV_OPT_TYPE_INT, {.i64=1}, 1, MAX_R, FLAGS, },
96 { "redge", "specify the search radius for best edge matching", OFFSET(redge), AV_OPT_TYPE_INT, {.i64=2}, 0, MAX_R, FLAGS, },
97 { "ecost", "specify the edge cost for edge matching", OFFSET(ecost), AV_OPT_TYPE_FLOAT,{.dbl=1},0,9,FLAGS, },
98 { "mcost", "specify the middle cost for edge matching", OFFSET(mcost), AV_OPT_TYPE_FLOAT,{.dbl=0.5}, 0, 1, FLAGS, },
99 { "dcost", "specify the distance cost for edge matching", OFFSET(dcost), AV_OPT_TYPE_FLOAT,{.dbl=0.5}, 0, 1, FLAGS, },
100 { "interp", "specify the type of interpolation", OFFSET(interp), AV_OPT_TYPE_INT, {.i64=1}, 0, 2, FLAGS, "interp" },
101 CONST("2p", "two-point interpolation", 0, "interp"),
102 CONST("4p", "four-point interpolation", 1, "interp"),
103 CONST("6p", "six-point interpolation", 2, "interp"),
104 { NULL }
105 };
106
107 AVFILTER_DEFINE_CLASS(estdif);
108
109 static const enum AVPixelFormat pix_fmts[] = {
110 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
111 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
112 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
113 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
114 AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
115 AV_PIX_FMT_YUVJ411P,
116 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
117 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
118 AV_PIX_FMT_GRAY8,
119 AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
120 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
121 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
122 AV_PIX_FMT_YUV440P10,
123 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
124 AV_PIX_FMT_YUV440P12,
125 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
126 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
127 AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
128 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
129 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
130 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
131 AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
132 AV_PIX_FMT_NONE
133 };
134
135 static int config_output(AVFilterLink *outlink)
136 {
137 AVFilterContext *ctx = outlink->src;
138 AVFilterLink *inlink = ctx->inputs[0];
139 ESTDIFContext *s = ctx->priv;
140
141 outlink->time_base = av_mul_q(inlink->time_base, (AVRational){1, 2});
142 if (s->mode)
143 outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){2, 1});
144
145 return 0;
146 }
147
148 typedef struct ThreadData {
149 AVFrame *out, *in;
150 } ThreadData;
151
152 #define MIDL(type, ss) \
153 static unsigned midl_##ss(const type *const prev, \
154 const type *const next, \
155 int end, int x, int k) \
156 { \
157 return (prev[av_clip(x + k, 0, end)] + \
158 next[av_clip(x - k, 0, end)] + 1) >> 1; \
159 }
160
161 MIDL(uint8_t, 8)
162 MIDL(uint16_t, 16)
163
164 #define MID2(type, ss) \
165 static unsigned mid2_##ss(const type *const prev, \
166 const type *const next, \
167 const type *const prev2, \
168 const type *const next2, \
169 const type *const prev3, \
170 const type *const next3, \
171 int end, int x, int k, int depth) \
172 { \
173 return (prev[av_clip(x + k, 0, end)] + \
174 next[av_clip(x - k, 0, end)] + 1) >> 1; \
175 }
176
177 MID2(uint8_t, 8)
178 MID2(uint16_t, 16)
179
180 #define MID4(type, ss) \
181 static unsigned mid4_##ss(const type *const prev, \
182 const type *const next, \
183 const type *const prev2, \
184 const type *const next2, \
185 const type *const prev3, \
186 const type *const next3, \
187 int end, int x, int k, int depth) \
188 { \
189 return av_clip_uintp2_c(( \
190 9 * (prev[av_clip(x + k, 0, end)] + \
191 next[av_clip(x - k, 0, end)]) - \
192 1 * (prev2[av_clip(x + k*3, 0, end)] + \
193 next2[av_clip(x - k*3, 0, end)]) + 8) >> 4, \
194 depth); \
195 }
196
197 MID4(uint8_t, 8)
198 MID4(uint16_t, 16)
199
200 #define MID6(type, ss) \
201 static unsigned mid6_##ss(const type *const prev, \
202 const type *const next, \
203 const type *const prev2, \
204 const type *const next2, \
205 const type *const prev3, \
206 const type *const next3, \
207 int end, int x, int k, int depth) \
208 { \
209 return av_clip_uintp2_c(( \
210 20 * (prev[av_clip(x + k, 0, end)] + \
211 next[av_clip(x - k, 0, end)]) - \
212 5 * (prev2[av_clip(x + k*3, 0, end)] + \
213 next2[av_clip(x - k*3, 0, end)]) + \
214 1 * (prev3[av_clip(x + k*5, 0, end)] + \
215 next3[av_clip(x - k*5, 0, end)]) + 16) >> 5, \
216 depth); \
217 }
218
219 MID6(uint8_t, 8)
220 MID6(uint16_t, 16)
221
222 #define DIFF(type, ss) \
223 static unsigned diff_##ss(const type *const prev, \
224 const type *const next, \
225 int x, int y) \
226 { \
227 return FFABS(prev[x] - next[y]); \
228 }
229
230 DIFF(uint8_t, 8)
231 DIFF(uint16_t, 16)
232
233 #define COST(type, ss) \
234 static unsigned cost_##ss(const type *const prev, \
235 const type *const next, \
236 int end, int x, int k) \
237 { \
238 const int m = midl_##ss(prev, next, end, x, k); \
239 const int p = prev[x]; \
240 const int n = next[x]; \
241 \
242 return FFABS(p - m) + FFABS(n - m); \
243 }
244
245 COST(uint8_t, 8)
246 COST(uint16_t, 16)
247
248 #define INTERPOLATE(type, atype, amax, ss) \
249 static void interpolate_##ss(ESTDIFContext *s, uint8_t *ddst, \
250 const uint8_t *const pprev_line, \
251 const uint8_t *const nnext_line, \
252 const uint8_t *const pprev2_line, \
253 const uint8_t *const nnext2_line, \
254 const uint8_t *const pprev3_line, \
255 const uint8_t *const nnext3_line, \
256 int x, int width, int rslope, \
257 int redge, int depth, \
258 int *K) \
259 { \
260 type *dst = (type *)ddst; \
261 const type *const prev_line = (const type *const)pprev_line; \
262 const type *const prev2_line = (const type *const)pprev2_line; \
263 const type *const prev3_line = (const type *const)pprev3_line; \
264 const type *const next_line = (const type *const)nnext_line; \
265 const type *const next2_line = (const type *const)nnext2_line; \
266 const type *const next3_line = (const type *const)nnext3_line; \
267 const int interp = s->interp; \
268 const int ecost = s->ecost * 32.f; \
269 const int dcost = s->dcost * s->max; \
270 const int end = width - 1; \
271 const atype mcost = s->mcost * s->redge * 4.f; \
272 atype sd[S], sD[S], di = 0; \
273 atype dmin = amax; \
274 int k = *K; \
275 \
276 for (int i = -rslope; i <= rslope && abs(k) > rslope; i++) { \
277 atype sum = 0; \
278 \
279 for (int j = -redge; j <= redge; j++) { \
280 const int xx = av_clip(x + i + j, 0, end); \
281 const int yy = av_clip(x - i + j, 0, end); \
282 sum += diff_##ss(prev_line, next_line, xx, yy); \
283 sum += diff_##ss(prev2_line, prev_line, xx, yy); \
284 sum += diff_##ss(next_line, next2_line, xx, yy); \
285 } \
286 \
287 sD[i + rslope] = ecost * sum; \
288 sD[i + rslope] += mcost * cost_##ss(prev_line, next_line, end, x, i);\
289 sD[i + rslope] += dcost * abs(i); \
290 \
291 dmin = FFMIN(sD[i + rslope], dmin); \
292 } \
293 \
294 for (int i = -rslope; i <= rslope; i++) { \
295 atype sum = 0; \
296 \
297 for (int j = -redge; j <= redge; j++) { \
298 const int xx = av_clip(x + k + i + j, 0, end); \
299 const int yy = av_clip(x - k - i + j, 0, end); \
300 sum += diff_##ss(prev_line, next_line, xx, yy); \
301 sum += diff_##ss(prev2_line, prev_line, xx, yy); \
302 sum += diff_##ss(next_line, next2_line, xx, yy); \
303 } \
304 \
305 sd[i + rslope] = ecost * sum; \
306 sd[i + rslope] += mcost * cost_##ss(prev_line, next_line, end, x, k+i);\
307 sd[i + rslope] += dcost * abs(k + i); \
308 \
309 dmin = FFMIN(sd[i + rslope], dmin); \
310 } \
311 \
312 for (int i = -rslope; i <= rslope && abs(k) > rslope; i++) { \
313 if (dmin == sD[i + rslope]) { \
314 di = 1; \
315 k = i; \
316 break; \
317 } \
318 } \
319 \
320 for (int i = -rslope; i <= rslope && !di; i++) { \
321 if (dmin == sd[i + rslope]) { \
322 k += i; \
323 break; \
324 } \
325 } \
326 \
327 dst[x] = s->mid_##ss[interp](prev_line, next_line, \
328 prev2_line, next2_line, \
329 prev3_line, next3_line, \
330 end, x, k, depth); \
331 \
332 *K = k; \
333 }
334
335 INTERPOLATE(uint8_t, unsigned, UINT_MAX, 8)
336 INTERPOLATE(uint16_t, uint64_t, UINT64_MAX, 16)
337
338 static int deinterlace_slice(AVFilterContext *ctx, void *arg,
339 int jobnr, int nb_jobs)
340 {
341 ESTDIFContext *s = ctx->priv;
342 ThreadData *td = arg;
343 AVFrame *out = td->out;
344 AVFrame *in = td->in;
345 const int rslope = s->rslope;
346 const int redge = s->redge;
347 const int depth = s->depth;
348 const int interlaced = in->interlaced_frame;
349 const int tff = (s->field == (s->parity == -1 ? interlaced ? in->top_field_first : 1 :
350 s->parity ^ 1));
351
352 for (int plane = 0; plane < s->nb_planes; plane++) {
353 const uint8_t *src_data = in->data[plane];
354 uint8_t *dst_data = out->data[plane];
355 const int linesize = s->linesize[plane];
356 const int width = s->planewidth[plane];
357 const int height = s->planeheight[plane];
358 const int src_linesize = in->linesize[plane];
359 const int dst_linesize = out->linesize[plane];
360 const int start = (height * jobnr) / nb_jobs;
361 const int end = (height * (jobnr+1)) / nb_jobs;
362 const uint8_t *prev_line, *prev2_line, *next_line, *next2_line, *in_line;
363 const uint8_t *prev3_line, *next3_line;
364 uint8_t *out_line;
365 int y_out;
366
367 y_out = start + (tff ^ (start & 1));
368
369 in_line = src_data + (y_out * src_linesize);
370 out_line = dst_data + (y_out * dst_linesize);
371
372 while (y_out < end) {
373 memcpy(out_line, in_line, linesize);
374 y_out += 2;
375 in_line += src_linesize * 2;
376 out_line += dst_linesize * 2;
377 }
378
379 y_out = start + ((!tff) ^ (start & 1));
380 out_line = dst_data + (y_out * dst_linesize);
381
382 for (int y = y_out; y < end; y += 2) {
383 int y_prev3_in = y - 5;
384 int y_next3_in = y + 5;
385 int y_prev2_in = y - 3;
386 int y_next2_in = y + 3;
387 int y_prev_in = y - 1;
388 int y_next_in = y + 1;
389 int k;
390
391 while (y_prev3_in < 0)
392 y_prev3_in += 2;
393
394 while (y_next3_in >= height)
395 y_next3_in -= 2;
396
397 while (y_prev2_in < 0)
398 y_prev2_in += 2;
399
400 while (y_next2_in >= height)
401 y_next2_in -= 2;
402
403 while (y_prev_in < 0)
404 y_prev_in += 2;
405
406 while (y_next_in >= height)
407 y_next_in -= 2;
408
409 prev3_line = src_data + (y_prev3_in * src_linesize);
410 next3_line = src_data + (y_next3_in * src_linesize);
411
412 prev2_line = src_data + (y_prev2_in * src_linesize);
413 next2_line = src_data + (y_next2_in * src_linesize);
414
415 prev_line = src_data + (y_prev_in * src_linesize);
416 next_line = src_data + (y_next_in * src_linesize);
417
418 k = 0;
419
420 for (int x = 0; x < width; x++) {
421 s->interpolate(s, out_line,
422 prev_line, next_line,
423 prev2_line, next2_line,
424 prev3_line, next3_line,
425 x, width, rslope, redge, depth, &k);
426 }
427
428 out_line += 2 * dst_linesize;
429 }
430 }
431
432 return 0;
433 }
434
435 static int filter(AVFilterContext *ctx, AVFrame *in, int64_t pts, int64_t duration)
436 {
437 ESTDIFContext *s = ctx->priv;
438 AVFilterLink *outlink = ctx->outputs[0];
439 AVFrame *out;
440 ThreadData td;
441
442 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
443 if (!out)
444 return AVERROR(ENOMEM);
445 av_frame_copy_props(out, in);
446 out->interlaced_frame = 0;
447 out->pts = pts;
448 out->duration = duration;
449
450 td.out = out; td.in = in;
451 ff_filter_execute(ctx, deinterlace_slice, &td, NULL,
452 FFMIN(s->planeheight[1] / 2, s->nb_threads));
453
454 if (s->mode)
455 s->field = !s->field;
456
457 return ff_filter_frame(outlink, out);
458 }
459
460 static int config_input(AVFilterLink *inlink)
461 {
462 AVFilterContext *ctx = inlink->dst;
463 ESTDIFContext *s = ctx->priv;
464 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
465 int ret;
466
467 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
468 return ret;
469
470 s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
471 s->planeheight[0] = s->planeheight[3] = inlink->h;
472 s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
473 s->planewidth[0] = s->planewidth[3] = inlink->w;
474
475 if (inlink->h < 3) {
476 av_log(ctx, AV_LOG_ERROR, "Video of less than 3 lines is not supported\n");
477 return AVERROR(EINVAL);
478 }
479
480 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
481 s->nb_threads = ff_filter_get_nb_threads(ctx);
482 s->depth = desc->comp[0].depth;
483 s->interpolate = s->depth <= 8 ? interpolate_8 : interpolate_16;
484 s->mid_8[0] = mid2_8;
485 s->mid_8[1] = mid4_8;
486 s->mid_8[2] = mid6_8;
487 s->mid_16[0] = mid2_16;
488 s->mid_16[1] = mid4_16;
489 s->mid_16[2] = mid6_16;
490 s->max = (1 << (s->depth)) - 1;
491
492 return 0;
493 }
494 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
495 {
496 AVFilterContext *ctx = inlink->dst;
497 ESTDIFContext *s = ctx->priv;
498 int ret;
499
500 if (!s->prev) {
501 s->prev = in;
502 return 0;
503 }
504
505 if ((s->deint && !s->prev->interlaced_frame) || ctx->is_disabled) {
506 s->prev->pts *= 2;
507 s->prev->duration *= 2;
508 ret = ff_filter_frame(ctx->outputs[0], s->prev);
509 s->prev = in;
510 return ret;
511 }
512
513 ret = filter(ctx, s->prev, s->prev->pts * 2,
514 s->prev->duration * (s->mode ? 1 : 2));
515 if (ret < 0 || s->mode == 0) {
516 av_frame_free(&s->prev);
517 s->prev = in;
518 return ret;
519 }
520
521 ret = filter(ctx, s->prev, s->prev->pts + in->pts, in->duration);
522 av_frame_free(&s->prev);
523 s->prev = in;
524 return ret;
525 }
526
527 static int request_frame(AVFilterLink *link)
528 {
529 AVFilterContext *ctx = link->src;
530 ESTDIFContext *s = ctx->priv;
531 int ret;
532
533 if (s->eof)
534 return AVERROR_EOF;
535
536 ret = ff_request_frame(ctx->inputs[0]);
537
538 if (ret == AVERROR_EOF && s->prev) {
539 AVFrame *next = av_frame_clone(s->prev);
540
541 if (!next)
542 return AVERROR(ENOMEM);
543
544 next->pts = s->prev->pts + av_rescale_q(1, av_inv_q(ctx->outputs[0]->frame_rate),
545 ctx->outputs[0]->time_base);
546 s->eof = 1;
547 ret = filter_frame(ctx->inputs[0], next);
548 } else if (ret < 0) {
549 return ret;
550 }
551
552 return ret;
553 }
554
555 static av_cold void uninit(AVFilterContext *ctx)
556 {
557 ESTDIFContext *s = ctx->priv;
558
559 av_frame_free(&s->prev);
560 }
561
562 static const AVFilterPad estdif_inputs[] = {
563 {
564 .name = "default",
565 .type = AVMEDIA_TYPE_VIDEO,
566 .filter_frame = filter_frame,
567 .config_props = config_input,
568 },
569 };
570
571 static const AVFilterPad estdif_outputs[] = {
572 {
573 .name = "default",
574 .type = AVMEDIA_TYPE_VIDEO,
575 .config_props = config_output,
576 .request_frame = request_frame,
577 },
578 };
579
580 const AVFilter ff_vf_estdif = {
581 .name = "estdif",
582 .description = NULL_IF_CONFIG_SMALL("Apply Edge Slope Tracing deinterlace."),
583 .priv_size = sizeof(ESTDIFContext),
584 .priv_class = &estdif_class,
585 .uninit = uninit,
586 FILTER_INPUTS(estdif_inputs),
587 FILTER_OUTPUTS(estdif_outputs),
588 FILTER_PIXFMTS_ARRAY(pix_fmts),
589 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
590 .process_command = ff_filter_process_command,
591 };
592