FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_unsharp.c
Date: 2024-03-29 11:55:30
Exec Total Coverage
Lines: 90 102 88.2%
Functions: 10 10 100.0%
Branches: 77 94 81.9%

Line Branch Exec Source
1 /*
2 * Original copyright (c) 2002 Remi Guyomarch <rguyom@pobox.com>
3 * Port copyright (c) 2010 Daniel G. Taylor <dan@programmer-art.org>
4 * Relicensed to the LGPL with permission from Remi Guyomarch.
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 /**
24 * @file
25 * blur / sharpen filter, ported to FFmpeg from MPlayer
26 * libmpcodecs/unsharp.c.
27 *
28 * This code is based on:
29 *
30 * An Efficient algorithm for Gaussian blur using finite-state machines
31 * Frederick M. Waltz and John W. V. Miller
32 *
33 * SPIE Conf. on Machine Vision Systems for Inspection and Metrology VII
34 * Originally published Boston, Nov 98
35 *
36 * http://www.engin.umd.umich.edu/~jwvm/ece581/21_GBlur.pdf
37 */
38
39 #include "avfilter.h"
40 #include "internal.h"
41 #include "video.h"
42 #include "libavutil/common.h"
43 #include "libavutil/imgutils.h"
44 #include "libavutil/mem.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/pixdesc.h"
47 #include "unsharp.h"
48
49 typedef struct TheadData {
50 UnsharpFilterParam *fp;
51 uint8_t *dst;
52 const uint8_t *src;
53 int dst_stride;
54 int src_stride;
55 int width;
56 int height;
57 } ThreadData;
58
59 #define DEF_UNSHARP_SLICE_FUNC(name, nbits) \
60 static int name##_##nbits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
61 { \
62 ThreadData *td = arg; \
63 UnsharpFilterParam *fp = td->fp; \
64 UnsharpContext *s = ctx->priv; \
65 uint32_t **sc = fp->sc; \
66 uint32_t *sr = fp->sr; \
67 const uint##nbits##_t *src2 = NULL; \
68 const int amount = fp->amount; \
69 const int steps_x = fp->steps_x; \
70 const int steps_y = fp->steps_y; \
71 const int scalebits = fp->scalebits; \
72 const int32_t halfscale = fp->halfscale; \
73 \
74 uint##nbits##_t *dst = (uint##nbits##_t*)td->dst; \
75 const uint##nbits##_t *src = (const uint##nbits##_t *)td->src; \
76 int dst_stride = td->dst_stride; \
77 int src_stride = td->src_stride; \
78 const int width = td->width; \
79 const int height = td->height; \
80 const int sc_offset = jobnr * 2 * steps_y; \
81 const int sr_offset = jobnr * (MAX_MATRIX_SIZE - 1); \
82 const int slice_start = (height * jobnr) / nb_jobs; \
83 const int slice_end = (height * (jobnr+1)) / nb_jobs; \
84 \
85 int32_t res; \
86 int x, y, z; \
87 uint32_t tmp1, tmp2; \
88 \
89 if (!amount) { \
90 av_image_copy_plane(td->dst + slice_start * dst_stride, dst_stride, \
91 td->src + slice_start * src_stride, src_stride, \
92 width * s->bps, slice_end - slice_start); \
93 return 0; \
94 } \
95 \
96 for (y = 0; y < 2 * steps_y; y++) \
97 memset(sc[sc_offset + y], 0, sizeof(sc[y][0]) * (width + 2 * steps_x)); \
98 \
99 dst_stride = dst_stride / s->bps; \
100 src_stride = src_stride / s->bps; \
101 /* if this is not the first tile, we start from (slice_start - steps_y) */ \
102 /* so we can get smooth result at slice boundary */ \
103 if (slice_start > steps_y) { \
104 src += (slice_start - steps_y) * src_stride; \
105 dst += (slice_start - steps_y) * dst_stride; \
106 } \
107 \
108 for (y = -steps_y + slice_start; y < steps_y + slice_end; y++) { \
109 if (y < height) \
110 src2 = src; \
111 \
112 memset(sr + sr_offset, 0, sizeof(sr[0]) * (2 * steps_x - 1)); \
113 for (x = -steps_x; x < width + steps_x; x++) { \
114 tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x]; \
115 for (z = 0; z < steps_x * 2; z += 2) { \
116 tmp2 = sr[sr_offset + z + 0] + tmp1; sr[sr_offset + z + 0] = tmp1; \
117 tmp1 = sr[sr_offset + z + 1] + tmp2; sr[sr_offset + z + 1] = tmp2; \
118 } \
119 for (z = 0; z < steps_y * 2; z += 2) { \
120 tmp2 = sc[sc_offset + z + 0][x + steps_x] + tmp1; \
121 sc[sc_offset + z + 0][x + steps_x] = tmp1; \
122 tmp1 = sc[sc_offset + z + 1][x + steps_x] + tmp2; \
123 sc[sc_offset + z + 1][x + steps_x] = tmp2; \
124 } \
125 if (x >= steps_x && y >= (steps_y + slice_start)) { \
126 const uint##nbits##_t *srx = src - steps_y * src_stride + x - steps_x; \
127 uint##nbits##_t *dsx = dst - steps_y * dst_stride + x - steps_x; \
128 \
129 res = (int32_t)*srx + ((((int32_t) * srx - \
130 (int32_t)((tmp1 + halfscale) >> scalebits)) * amount) >> (8+nbits)); \
131 *dsx = av_clip_uint##nbits(res); \
132 } \
133 } \
134 if (y >= 0) { \
135 dst += dst_stride; \
136 src += src_stride; \
137 } \
138 } \
139 return 0; \
140 }
141
25/26
✗ Branch 0 not taken.
✓ Branch 1 taken 540 times.
✓ Branch 3 taken 5400 times.
✓ Branch 4 taken 540 times.
✓ Branch 5 taken 480 times.
✓ Branch 6 taken 60 times.
✓ Branch 7 taken 14700 times.
✓ Branch 8 taken 300 times.
✓ Branch 9 taken 90000 times.
✓ Branch 10 taken 3516000 times.
✓ Branch 11 taken 75000 times.
✓ Branch 12 taken 3441000 times.
✓ Branch 13 taken 18030000 times.
✓ Branch 14 taken 3606000 times.
✓ Branch 15 taken 18030000 times.
✓ Branch 16 taken 3606000 times.
✓ Branch 17 taken 3456000 times.
✓ Branch 18 taken 150000 times.
✓ Branch 19 taken 2304000 times.
✓ Branch 20 taken 1152000 times.
✓ Branch 21 taken 3606000 times.
✓ Branch 22 taken 15000 times.
✓ Branch 23 taken 14700 times.
✓ Branch 24 taken 300 times.
✓ Branch 25 taken 15000 times.
✓ Branch 26 taken 540 times.
39686940 DEF_UNSHARP_SLICE_FUNC(unsharp_slice, 16)
142
25/26
✗ Branch 0 not taken.
✓ Branch 1 taken 1350 times.
✓ Branch 3 taken 13500 times.
✓ Branch 4 taken 1350 times.
✓ Branch 5 taken 1200 times.
✓ Branch 6 taken 150 times.
✓ Branch 7 taken 41550 times.
✓ Branch 8 taken 750 times.
✓ Branch 9 taken 253800 times.
✓ Branch 10 taken 10940400 times.
✓ Branch 11 taken 211500 times.
✓ Branch 12 taken 10728900 times.
✓ Branch 13 taken 55971000 times.
✓ Branch 14 taken 11194200 times.
✓ Branch 15 taken 55971000 times.
✓ Branch 16 taken 11194200 times.
✓ Branch 17 taken 10771200 times.
✓ Branch 18 taken 423000 times.
✓ Branch 19 taken 7603200 times.
✓ Branch 20 taken 3168000 times.
✓ Branch 21 taken 11194200 times.
✓ Branch 22 taken 42300 times.
✓ Branch 23 taken 41550 times.
✓ Branch 24 taken 750 times.
✓ Branch 25 taken 42300 times.
✓ Branch 26 taken 1350 times.
123193350 DEF_UNSHARP_SLICE_FUNC(unsharp_slice, 8)
143
144 70 static int apply_unsharp_c(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
145 {
146 70 AVFilterLink *inlink = ctx->inputs[0];
147 70 UnsharpContext *s = ctx->priv;
148 int i, plane_w[4], plane_h[4];
149 UnsharpFilterParam *fp[4];
150 ThreadData td;
151
152 70 plane_w[0] = plane_w[3] = inlink->w;
153 70 plane_w[1] = plane_w[2] = AV_CEIL_RSHIFT(inlink->w, s->hsub);
154 70 plane_h[0] = plane_h[3] = inlink->h;
155 70 plane_h[1] = plane_h[2] = AV_CEIL_RSHIFT(inlink->h, s->vsub);
156 70 fp[0] = &s->luma;
157 70 fp[1] = fp[2] = &s->chroma;
158 70 fp[3] = &s->alpha;
159
2/2
✓ Branch 0 taken 210 times.
✓ Branch 1 taken 70 times.
280 for (i = 0; i < s->nb_planes; i++) {
160 210 td.fp = fp[i];
161 210 td.dst = out->data[i];
162 210 td.src = in->data[i];
163 210 td.width = plane_w[i];
164 210 td.height = plane_h[i];
165 210 td.dst_stride = out->linesize[i];
166 210 td.src_stride = in->linesize[i];
167 210 ff_filter_execute(ctx, s->unsharp_slice, &td, NULL,
168 210 FFMIN(plane_h[i], s->nb_threads));
169 }
170 70 return 0;
171 }
172
173 #define MAX_SCALEBITS 25
174
175 12 static int set_filter_param(AVFilterContext *ctx, const char *name, const char *short_name,
176 UnsharpFilterParam *fp, int msize_x, int msize_y, float amount)
177 {
178 12 fp->msize_x = msize_x;
179 12 fp->msize_y = msize_y;
180 12 fp->amount = amount * 65536.0;
181
182 12 fp->steps_x = msize_x / 2;
183 12 fp->steps_y = msize_y / 2;
184 12 fp->scalebits = (fp->steps_x + fp->steps_y) * 2;
185 12 fp->halfscale = 1 << (fp->scalebits - 1);
186
187
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
12 if (fp->scalebits > MAX_SCALEBITS) {
188 av_log(ctx, AV_LOG_ERROR, "%s matrix size (%sx/2+%sy/2)*2=%d greater than maximum value %d\n",
189 name, short_name, short_name, fp->scalebits, MAX_SCALEBITS);
190 return AVERROR(EINVAL);
191 }
192
193 12 return 0;
194 }
195
196 4 static av_cold int init(AVFilterContext *ctx)
197 {
198 4 UnsharpContext *s = ctx->priv;
199 int ret;
200
201 #define SET_FILTER_PARAM(name_, short_) \
202 ret = set_filter_param(ctx, #name_, #short_, &s->name_, \
203 s->short_##msize_x, s->short_##msize_y, s->short_##amount); \
204 if (ret < 0) \
205 return ret; \
206
207
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
4 SET_FILTER_PARAM(luma, l);
208
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
4 SET_FILTER_PARAM(chroma, c);
209
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
4 SET_FILTER_PARAM(alpha, a);
210
211 4 s->apply_unsharp = apply_unsharp_c;
212 4 return 0;
213 }
214
215 static const enum AVPixelFormat pix_fmts[] = {
216 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
217 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
218 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
219 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
220 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV410P,
221 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
222 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
223 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV440P10,
224 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
225 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
226 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_NONE
227 };
228
229 4 static int init_filter_param(AVFilterContext *ctx, UnsharpFilterParam *fp, const char *effect_type, int width)
230 {
231 int z;
232 4 UnsharpContext *s = ctx->priv;
233
2/4
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
✗ Branch 3 not taken.
4 const char *effect = fp->amount == 0 ? "none" : fp->amount < 0 ? "blur" : "sharpen";
234
235
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
4 if (!(fp->msize_x & fp->msize_y & 1)) {
236 av_log(ctx, AV_LOG_ERROR,
237 "Invalid even size for %s matrix size %dx%d\n",
238 effect_type, fp->msize_x, fp->msize_y);
239 return AVERROR(EINVAL);
240 }
241
242 4 av_log(ctx, AV_LOG_VERBOSE, "effect:%s type:%s msize_x:%d msize_y:%d amount:%0.2f\n",
243 4 effect, effect_type, fp->msize_x, fp->msize_y, fp->amount / 65535.0);
244
245 4 fp->sr = av_malloc_array((MAX_MATRIX_SIZE - 1) * s->nb_threads, sizeof(uint32_t));
246 4 fp->sc = av_calloc(fp->steps_y * s->nb_threads, 2 * sizeof(*fp->sc));
247
2/4
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 4 times.
4 if (!fp->sr || !fp->sc)
248 return AVERROR(ENOMEM);
249
250
2/2
✓ Branch 0 taken 360 times.
✓ Branch 1 taken 4 times.
364 for (z = 0; z < 2 * fp->steps_y * s->nb_threads; z++)
251
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 360 times.
360 if (!(fp->sc[z] = av_malloc_array(width + 2 * fp->steps_x,
252 sizeof(*(fp->sc[z])))))
253 return AVERROR(ENOMEM);
254
255 4 return 0;
256 }
257
258 2 static int config_input(AVFilterLink *inlink)
259 {
260 2 UnsharpContext *s = inlink->dst->priv;
261 2 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
262 int ret;
263
264 2 s->nb_planes = desc->nb_components;
265 2 s->hsub = desc->log2_chroma_w;
266 2 s->vsub = desc->log2_chroma_h;
267 2 s->bitdepth = desc->comp[0].depth;
268
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
2 s->bps = s->bitdepth > 8 ? 2 : 1;
269
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
2 s->unsharp_slice = s->bitdepth > 8 ? unsharp_slice_16 : unsharp_slice_8;
270
271 // ensure (height / nb_threads) > 4 * steps_y,
272 // so that we don't have too much overlap between two threads
273
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
2 s->nb_threads = FFMIN(ff_filter_get_nb_threads(inlink->dst),
274 inlink->h / (4 * s->luma.steps_y));
275
276 2 ret = init_filter_param(inlink->dst, &s->luma, "luma", inlink->w);
277
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
2 if (ret < 0)
278 return ret;
279 2 ret = init_filter_param(inlink->dst, &s->chroma, "chroma", AV_CEIL_RSHIFT(inlink->w, s->hsub));
280
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
2 if (ret < 0)
281 return ret;
282
283 2 return 0;
284 }
285
286 8 static void free_filter_param(UnsharpFilterParam *fp, int nb_threads)
287 {
288 int z;
289
290
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 4 times.
8 if (fp->sc) {
291
2/2
✓ Branch 0 taken 360 times.
✓ Branch 1 taken 4 times.
364 for (z = 0; z < 2 * fp->steps_y * nb_threads; z++)
292 360 av_freep(&fp->sc[z]);
293 4 av_freep(&fp->sc);
294 }
295 8 av_freep(&fp->sr);
296 8 }
297
298 4 static av_cold void uninit(AVFilterContext *ctx)
299 {
300 4 UnsharpContext *s = ctx->priv;
301
302 4 free_filter_param(&s->luma, s->nb_threads);
303 4 free_filter_param(&s->chroma, s->nb_threads);
304 4 }
305
306 70 static int filter_frame(AVFilterLink *link, AVFrame *in)
307 {
308 70 UnsharpContext *s = link->dst->priv;
309 70 AVFilterLink *outlink = link->dst->outputs[0];
310 AVFrame *out;
311 70 int ret = 0;
312
313 70 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
314
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
70 if (!out) {
315 av_frame_free(&in);
316 return AVERROR(ENOMEM);
317 }
318 70 av_frame_copy_props(out, in);
319
320 70 ret = s->apply_unsharp(link->dst, in, out);
321
322 70 av_frame_free(&in);
323
324
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
70 if (ret < 0) {
325 av_frame_free(&out);
326 return ret;
327 }
328 70 return ff_filter_frame(outlink, out);
329 }
330
331 #define OFFSET(x) offsetof(UnsharpContext, x)
332 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
333 #define MIN_SIZE 3
334 #define MAX_SIZE 23
335 static const AVOption unsharp_options[] = {
336 { "luma_msize_x", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
337 { "lx", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
338 { "luma_msize_y", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
339 { "ly", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
340 { "luma_amount", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
341 { "la", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
342 { "chroma_msize_x", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
343 { "cx", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
344 { "chroma_msize_y", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
345 { "cy", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
346 { "chroma_amount", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
347 { "ca", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
348 { "alpha_msize_x", "set alpha matrix horizontal size", OFFSET(amsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
349 { "ax", "set alpha matrix horizontal size", OFFSET(amsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
350 { "alpha_msize_y", "set alpha matrix vertical size", OFFSET(amsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
351 { "ay", "set alpha matrix vertical size", OFFSET(amsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
352 { "alpha_amount", "set alpha effect strength", OFFSET(aamount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
353 { "aa", "set alpha effect strength", OFFSET(aamount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
354 { NULL }
355 };
356
357 AVFILTER_DEFINE_CLASS(unsharp);
358
359 static const AVFilterPad avfilter_vf_unsharp_inputs[] = {
360 {
361 .name = "default",
362 .type = AVMEDIA_TYPE_VIDEO,
363 .filter_frame = filter_frame,
364 .config_props = config_input,
365 },
366 };
367
368 const AVFilter ff_vf_unsharp = {
369 .name = "unsharp",
370 .description = NULL_IF_CONFIG_SMALL("Sharpen or blur the input video."),
371 .priv_size = sizeof(UnsharpContext),
372 .priv_class = &unsharp_class,
373 .init = init,
374 .uninit = uninit,
375 FILTER_INPUTS(avfilter_vf_unsharp_inputs),
376 FILTER_OUTPUTS(ff_video_default_filterpad),
377 FILTER_PIXFMTS_ARRAY(pix_fmts),
378 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
379 };
380