RepoMirrors/mpv
1
0
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2025-03-23 11:47:45 +00:00
Code Issues Releases Wiki Activity

filter_kernels: replace magic jinc radius by constant (cosmetic)

Browse Source
This commit is contained in:
Niklas Haas 2023-09-16 13:05:19 +02:00 committed by Niklas Haas
parent 06e65778be
commit aef62063f7
1 changed files with 8 additions and 6 deletions

14
video/out/filter_kernels.c
View File

@ -362,6 +362,8 @@ const struct filter_window mp_filter_windows[] = {
{0}
};
#define JINC_R3 3.2383154841662362
const struct filter_kernel mp_filter_kernels[] = {
// Spline filters
{{"spline16", 2, spline16}},
@ -378,16 +380,16 @@ const struct filter_kernel mp_filter_kernels[] = {
{{"ewa_ginseng", 3, jinc, .resizable = true}, .polar = true, .window = "sinc"},
// Radius is based on the true jinc radius, slightly sharpened as per
// calculations by Nicolas Robidoux. Source: Imagemagick's magick/resize.c
{{"ewa_lanczossharp", 3.2383154841662362, jinc, .blur = 0.9812505644269356,
.resizable = true}, .polar = true, .window = "jinc"},
{{"ewa_lanczossharp", JINC_R3, jinc, .blur = 0.9812505644269356, .resizable = true},
.polar = true, .window = "jinc"},
// Similar to the above, but softened instead. This one makes hash patterns
// disappear completely. Blur determined by trial and error.
{{"ewa_lanczossoft", 3.2383154841662362, jinc, .blur = 1.015,
.resizable = true}, .polar = true, .window = "jinc"},
{{"ewa_lanczossoft", JINC_R3, jinc, .blur = 1.015, .resizable = true},
.polar = true, .window = "jinc"},
// Very soft (blurred) hanning-windowed jinc; removes almost all aliasing.
// Blur parameter picked to match orthogonal and diagonal contributions
{{"haasnsoft", 3.2383154841662362, jinc, .blur = 1.11, .resizable = true},
.polar = true, .window = "hanning"},
{{"haasnsoft", JINC_R3, jinc, .blur = 1.11, .resizable = true},
.polar = true, .window = "hanning"},
// Cubic filters
{{"bicubic", 2, bicubic}},
{{"bcspline", 2, cubic_bc, .params = {0.5, 0.5} }},