FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/vf_unsharp.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 88 100 88.0%
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 "filters.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
48 #define MIN_MATRIX_SIZE 3
49 #define MAX_MATRIX_SIZE 63
50
51 typedef struct UnsharpFilterParam {
52 int msize_x; ///< matrix width
53 int msize_y; ///< matrix height
54 int amount; ///< effect amount
55 int steps_x; ///< horizontal step count
56 int steps_y; ///< vertical step count
57 int scalebits; ///< bits to shift pixel
58 int32_t halfscale; ///< amount to add to pixel
59 uint32_t *sr; ///< finite state machine storage within a row
60 uint32_t **sc; ///< finite state machine storage across rows
61 } UnsharpFilterParam;
62
63 typedef struct UnsharpContext {
64 const AVClass *class;
65 int lmsize_x, lmsize_y, cmsize_x, cmsize_y;
66 int amsize_x, amsize_y;
67 float lamount, camount;
68 float aamount;
69 UnsharpFilterParam luma; ///< luma parameters (width, height, amount)
70 UnsharpFilterParam chroma; ///< chroma parameters (width, height, amount)
71 UnsharpFilterParam alpha; ///< alpha parameters (width, height, amount)
72 int hsub, vsub;
73 int nb_planes;
74 int bitdepth;
75 int bps;
76 int nb_threads;
77 int (* unsharp_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
78 } UnsharpContext;
79
80 typedef struct TheadData {
81 UnsharpFilterParam *fp;
82 uint8_t *dst;
83 const uint8_t *src;
84 int dst_stride;
85 int src_stride;
86 int width;
87 int height;
88 } ThreadData;
89
90 #define DEF_UNSHARP_SLICE_FUNC(name, nbits) \
91 static int name##_##nbits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
92 { \
93 ThreadData *td = arg; \
94 UnsharpFilterParam *fp = td->fp; \
95 UnsharpContext *s = ctx->priv; \
96 uint32_t **sc = fp->sc; \
97 uint32_t *sr = fp->sr; \
98 const uint##nbits##_t *src2 = NULL; \
99 const int amount = fp->amount; \
100 const int steps_x = fp->steps_x; \
101 const int steps_y = fp->steps_y; \
102 const int scalebits = fp->scalebits; \
103 const int32_t halfscale = fp->halfscale; \
104 \
105 uint##nbits##_t *dst = (uint##nbits##_t*)td->dst; \
106 const uint##nbits##_t *src = (const uint##nbits##_t *)td->src; \
107 int dst_stride = td->dst_stride; \
108 int src_stride = td->src_stride; \
109 const int width = td->width; \
110 const int height = td->height; \
111 const int sc_offset = jobnr * 2 * steps_y; \
112 const int sr_offset = jobnr * (MAX_MATRIX_SIZE - 1); \
113 const int slice_start = (height * jobnr) / nb_jobs; \
114 const int slice_end = (height * (jobnr+1)) / nb_jobs; \
115 \
116 int32_t res; \
117 int x, y, z; \
118 uint32_t tmp1, tmp2; \
119 \
120 if (!amount) { \
121 av_image_copy_plane(td->dst + slice_start * dst_stride, dst_stride, \
122 td->src + slice_start * src_stride, src_stride, \
123 width * s->bps, slice_end - slice_start); \
124 return 0; \
125 } \
126 \
127 for (y = 0; y < 2 * steps_y; y++) \
128 memset(sc[sc_offset + y], 0, sizeof(sc[y][0]) * (width + 2 * steps_x)); \
129 \
130 dst_stride = dst_stride / s->bps; \
131 src_stride = src_stride / s->bps; \
132 /* if this is not the first tile, we start from (slice_start - steps_y) */ \
133 /* so we can get smooth result at slice boundary */ \
134 if (slice_start > steps_y) { \
135 src += (slice_start - steps_y) * src_stride; \
136 dst += (slice_start - steps_y) * dst_stride; \
137 } \
138 \
139 for (y = -steps_y + slice_start; y < steps_y + slice_end; y++) { \
140 if (y < height) \
141 src2 = src; \
142 \
143 memset(sr + sr_offset, 0, sizeof(sr[0]) * (2 * steps_x - 1)); \
144 for (x = -steps_x; x < width + steps_x; x++) { \
145 tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x]; \
146 for (z = 0; z < steps_x * 2; z += 2) { \
147 tmp2 = sr[sr_offset + z + 0] + tmp1; sr[sr_offset + z + 0] = tmp1; \
148 tmp1 = sr[sr_offset + z + 1] + tmp2; sr[sr_offset + z + 1] = tmp2; \
149 } \
150 for (z = 0; z < steps_y * 2; z += 2) { \
151 tmp2 = sc[sc_offset + z + 0][x + steps_x] + tmp1; \
152 sc[sc_offset + z + 0][x + steps_x] = tmp1; \
153 tmp1 = sc[sc_offset + z + 1][x + steps_x] + tmp2; \
154 sc[sc_offset + z + 1][x + steps_x] = tmp2; \
155 } \
156 if (x >= steps_x && y >= (steps_y + slice_start)) { \
157 const uint##nbits##_t *srx = src - steps_y * src_stride + x - steps_x; \
158 uint##nbits##_t *dsx = dst - steps_y * dst_stride + x - steps_x; \
159 \
160 res = (int32_t)*srx + ((((int32_t) * srx - \
161 (int32_t)((tmp1 + halfscale) >> scalebits)) * amount) >> (8+nbits)); \
162 *dsx = av_clip_uint##nbits(res); \
163 } \
164 } \
165 if (y >= 0) { \
166 dst += dst_stride; \
167 src += src_stride; \
168 } \
169 } \
170 return 0; \
171 }
172
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)
173
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)
174
175 70 static int apply_unsharp(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
176 {
177 70 AVFilterLink *inlink = ctx->inputs[0];
178 70 UnsharpContext *s = ctx->priv;
179 int i, plane_w[4], plane_h[4];
180 UnsharpFilterParam *fp[4];
181 ThreadData td;
182
183 70 plane_w[0] = plane_w[3] = inlink->w;
184 70 plane_w[1] = plane_w[2] = AV_CEIL_RSHIFT(inlink->w, s->hsub);
185 70 plane_h[0] = plane_h[3] = inlink->h;
186 70 plane_h[1] = plane_h[2] = AV_CEIL_RSHIFT(inlink->h, s->vsub);
187 70 fp[0] = &s->luma;
188 70 fp[1] = fp[2] = &s->chroma;
189 70 fp[3] = &s->alpha;
190
2/2
✓ Branch 0 taken 210 times.
✓ Branch 1 taken 70 times.
 280 for (i = 0; i < s->nb_planes; i++) {
191 210 td.fp = fp[i];
192 210 td.dst = out->data[i];
193 210 td.src = in->data[i];
194 210 td.width = plane_w[i];
195 210 td.height = plane_h[i];
196 210 td.dst_stride = out->linesize[i];
197 210 td.src_stride = in->linesize[i];
198 210 ff_filter_execute(ctx, s->unsharp_slice, &td, NULL,
199 210 FFMIN(plane_h[i], s->nb_threads));
200 }
201 70 return 0;
202 }
203
204 #define MAX_SCALEBITS 25
205
206 12 static int set_filter_param(AVFilterContext *ctx, const char *name, const char *short_name,
207 UnsharpFilterParam *fp, int msize_x, int msize_y, float amount)
208 {
209 12 fp->msize_x = msize_x;
210 12 fp->msize_y = msize_y;
211 12 fp->amount = amount * 65536.0;
212
213 12 fp->steps_x = msize_x / 2;
214 12 fp->steps_y = msize_y / 2;
215 12 fp->scalebits = (fp->steps_x + fp->steps_y) * 2;
216 12 fp->halfscale = 1 << (fp->scalebits - 1);
217
218
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (fp->scalebits > MAX_SCALEBITS) {
219 ✗ av_log(ctx, AV_LOG_ERROR, "%s matrix size (%sx/2+%sy/2)*2=%d greater than maximum value %d\n",
220 name, short_name, short_name, fp->scalebits, MAX_SCALEBITS);
221 ✗ return AVERROR(EINVAL);
222 }
223
224 12 return 0;
225 }
226
227 4 static av_cold int init(AVFilterContext *ctx)
228 {
229 4 UnsharpContext *s = ctx->priv;
230 int ret;
231
232 #define SET_FILTER_PARAM(name_, short_) \
233 ret = set_filter_param(ctx, #name_, #short_, &s->name_, \
234 s->short_##msize_x, s->short_##msize_y, s->short_##amount); \
235 if (ret < 0) \
236 return ret; \
237
238
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
 4 SET_FILTER_PARAM(luma, l);
239
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
 4 SET_FILTER_PARAM(chroma, c);
240
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
 4 SET_FILTER_PARAM(alpha, a);
241
242 4 return 0;
243 }
244
245 static const enum AVPixelFormat pix_fmts[] = {
246 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
247 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
248 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
249 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
250 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV410P,
251 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
252 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
253 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV440P10,
254 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
255 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
256 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_NONE
257 };
258
259 4 static int init_filter_param(AVFilterContext *ctx, UnsharpFilterParam *fp, const char *effect_type, int width)
260 {
261 int z;
262 4 UnsharpContext *s = ctx->priv;
263
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";
264
265
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (!(fp->msize_x & fp->msize_y & 1)) {
266 ✗ av_log(ctx, AV_LOG_ERROR,
267 "Invalid even size for %s matrix size %dx%d\n",
268 effect_type, fp->msize_x, fp->msize_y);
269 ✗ return AVERROR(EINVAL);
270 }
271
272 4 av_log(ctx, AV_LOG_VERBOSE, "effect:%s type:%s msize_x:%d msize_y:%d amount:%0.2f\n",
273 4 effect, effect_type, fp->msize_x, fp->msize_y, fp->amount / 65535.0);
274
275 4 fp->sr = av_malloc_array((MAX_MATRIX_SIZE - 1) * s->nb_threads, sizeof(uint32_t));
276 4 fp->sc = av_calloc(fp->steps_y * s->nb_threads, 2 * sizeof(*fp->sc));
277
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)
278 ✗ return AVERROR(ENOMEM);
279
280
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++)
281
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 360 times.
 360 if (!(fp->sc[z] = av_malloc_array(width + 2 * fp->steps_x,
282 sizeof(*(fp->sc[z])))))
283 ✗ return AVERROR(ENOMEM);
284
285 4 return 0;
286 }
287
288 2 static int config_input(AVFilterLink *inlink)
289 {
290 2 UnsharpContext *s = inlink->dst->priv;
291 2 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
292 int ret;
293
294 2 s->nb_planes = desc->nb_components;
295 2 s->hsub = desc->log2_chroma_w;
296 2 s->vsub = desc->log2_chroma_h;
297 2 s->bitdepth = desc->comp[0].depth;
298
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
 2 s->bps = s->bitdepth > 8 ? 2 : 1;
299
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;
300
301 // ensure (height / nb_threads) > 4 * steps_y,
302 // so that we don't have too much overlap between two threads
303
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 s->nb_threads = FFMIN(ff_filter_get_nb_threads(inlink->dst),
304 inlink->h / (4 * s->luma.steps_y));
305
306 2 ret = init_filter_param(inlink->dst, &s->luma, "luma", inlink->w);
307
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (ret < 0)
308 ✗ return ret;
309 2 ret = init_filter_param(inlink->dst, &s->chroma, "chroma", AV_CEIL_RSHIFT(inlink->w, s->hsub));
310
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (ret < 0)
311 ✗ return ret;
312
313 2 return 0;
314 }
315
316 8 static void free_filter_param(UnsharpFilterParam *fp, int nb_threads)
317 {
318 int z;
319
320
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 4 times.
 8 if (fp->sc) {
321
2/2
✓ Branch 0 taken 360 times.
✓ Branch 1 taken 4 times.
 364 for (z = 0; z < 2 * fp->steps_y * nb_threads; z++)
322 360 av_freep(&fp->sc[z]);
323 4 av_freep(&fp->sc);
324 }
325 8 av_freep(&fp->sr);
326 8 }
327
328 4 static av_cold void uninit(AVFilterContext *ctx)
329 {
330 4 UnsharpContext *s = ctx->priv;
331
332 4 free_filter_param(&s->luma, s->nb_threads);
333 4 free_filter_param(&s->chroma, s->nb_threads);
334 4 }
335
336 70 static int filter_frame(AVFilterLink *link, AVFrame *in)
337 {
338 70 AVFilterLink *outlink = link->dst->outputs[0];
339 AVFrame *out;
340 70 int ret = 0;
341
342 70 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
343
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
 70 if (!out) {
344 ✗ av_frame_free(&in);
345 ✗ return AVERROR(ENOMEM);
346 }
347 70 av_frame_copy_props(out, in);
348
349 70 ret = apply_unsharp(link->dst, in, out);
350
351 70 av_frame_free(&in);
352
353
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
 70 if (ret < 0) {
354 ✗ av_frame_free(&out);
355 ✗ return ret;
356 }
357 70 return ff_filter_frame(outlink, out);
358 }
359
360 #define OFFSET(x) offsetof(UnsharpContext, x)
361 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
362 #define MIN_SIZE 3
363 #define MAX_SIZE 23
364 static const AVOption unsharp_options[] = {
365 { "luma_msize_x", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
366 { "lx", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
367 { "luma_msize_y", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
368 { "ly", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
369 { "luma_amount", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
370 { "la", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
371 { "chroma_msize_x", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
372 { "cx", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
373 { "chroma_msize_y", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
374 { "cy", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
375 { "chroma_amount", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
376 { "ca", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
377 { "alpha_msize_x", "set alpha matrix horizontal size", OFFSET(amsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
378 { "ax", "set alpha matrix horizontal size", OFFSET(amsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
379 { "alpha_msize_y", "set alpha matrix vertical size", OFFSET(amsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
380 { "ay", "set alpha matrix vertical size", OFFSET(amsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
381 { "alpha_amount", "set alpha effect strength", OFFSET(aamount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
382 { "aa", "set alpha effect strength", OFFSET(aamount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
383 { NULL }
384 };
385
386 AVFILTER_DEFINE_CLASS(unsharp);
387
388 static const AVFilterPad avfilter_vf_unsharp_inputs[] = {
389 {
390 .name = "default",
391 .type = AVMEDIA_TYPE_VIDEO,
392 .filter_frame = filter_frame,
393 .config_props = config_input,
394 },
395 };
396
397 const AVFilter ff_vf_unsharp = {
398 .name = "unsharp",
399 .description = NULL_IF_CONFIG_SMALL("Sharpen or blur the input video."),
400 .priv_size = sizeof(UnsharpContext),
401 .priv_class = &unsharp_class,
402 .init = init,
403 .uninit = uninit,
404 FILTER_INPUTS(avfilter_vf_unsharp_inputs),
405 FILTER_OUTPUTS(ff_video_default_filterpad),
406 FILTER_PIXFMTS_ARRAY(pix_fmts),
407 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
408 };
409