52 #define SHIFTUP(x,shift) (-((-(x))>>(shift)))
75 const uint8_t *src,
int src_stride,
78 uint32_t **sc = fp->
sc;
86 if (dst_stride == src_stride)
87 memcpy(dst, src, src_stride * height);
89 for (y = 0; y <
height; y++, dst += dst_stride, src += src_stride)
90 memcpy(dst, src, width);
94 for (y = 0; y < 2 * fp->
steps_y; y++)
95 memset(sc[y], 0,
sizeof(sc[y][0]) * (width + 2 * fp->
steps_x));
97 for (y = -fp->
steps_y; y < height + fp->steps_y; y++) {
101 memset(sr, 0,
sizeof(sr[0]) * (2 * fp->
steps_x - 1));
102 for (x = -fp->
steps_x; x < width + fp->steps_x; x++) {
103 tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x];
104 for (z = 0; z < fp->
steps_x * 2; z += 2) {
105 tmp2 = sr[z + 0] + tmp1; sr[z + 0] = tmp1;
106 tmp1 = sr[z + 1] + tmp2; sr[z + 1] = tmp2;
108 for (z = 0; z < fp->
steps_y * 2; z += 2) {
109 tmp2 = sc[z + 0][x + fp->
steps_x] + tmp1; sc[z + 0][x + fp->
steps_x] = tmp1;
110 tmp1 = sc[z + 1][x + fp->
steps_x] + tmp2; sc[z + 1][x + fp->
steps_x] = tmp2;
117 *dsx = av_clip_uint8(res);
131 fp->
amount = amount * 65536.0;
167 effect = fp->
amount == 0 ?
"none" : fp->
amount < 0 ?
"blur" :
"sharpen";
172 for (z = 0; z < 2 * fp->
steps_y; z++)
194 for (z = 0; z < 2 * fp->
steps_y; z++)
229 #define OFFSET(x) offsetof(UnsharpContext, x)
230 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM
271 .priv_class = &unsharp_class,
277 .
inputs = avfilter_vf_unsharp_inputs,
279 .
outputs = avfilter_vf_unsharp_outputs,