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avfilter/vf_blend: add few more modes

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Paul B Mahol
2021-09-30 01:20:18 +02:00
parent 1ad4782d2a
commit a673761ce8
4 changed files with 24 additions and 4 deletions
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4
libavfilter/blend_modes.c
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@@ -145,3 +145,7 @@ fn(linearlight,CLIP((B < HALF) ? B + 2 * A - MAX : B + 2 * (A - HALF)))
fn(softdifference,CLIP((A > B) ? (B == MAX) ? 0 : (A - B) * MAX / (MAX - B) : (B == 0) ? 0 : (B - A) * MAX / B))
fn(geometric, GEOMETRIC(A, B))
fn(harmonic, A == 0 && B == 0 ? 0 : 2LL * A * B / (A + B))
fn(bleach, (MAX - B) + (MAX - A) - MAX)
fn(stain, 2 * MAX - A - B)
fn(interpolate,lrintf(MAX * (2 - cosf(A * M_PI / MAX) - cosf(B * M_PI / MAX)) * 0.25f))
fn(hardoverlay,A == MAX ? MAX : FFMIN(MAX, MAX * B / (2 * MAX - 2 * A) * (A > HALF) + 2 * A * B / MAX * (A <= HALF)))