FFT-based FIR¶
Description
This effect/filter applies arbitrary expressions to samples in frequency domain. It is a Finite Impulse Response (FIR)[1] filter using Fast Fourier Transform (FFT)[2].
Parameters
Parameter |
Value |
Description |
---|---|---|
Gain in Y / U / V plane |
Integer |
Set the gain value for the Y (luma), U (1st chroma) or V (2nd chroma) plane. Allowed values are 0 to 250, default is 0. |
Luminance Y / U / V plane |
Float |
Set the frequency domain weight value for the Y (luma), U (1st chroma) or V (2nd chroma) plane. Allowed values are 0.000 to 5.000, default is 1.000. |
Evaluate |
Selection |
Set when the expressions are evaluated. |
The following selection items are available:
Evaluate
init |
Only evaluate expressions once during filter initialization (default) |
frame |
Evaluate expressions for each incoming frame |
Avertissement
If Evaluate is set to frame render times will be significantly longer as each frame is evaluated individually.