Dissolve

Dissolve is like AlignedSplice, except that the clips are combined with some overlap. The last overlap frames of the first video stream are blended progressively with the first overlap frames of the second video stream so that the streams fade into each other. The audio streams are blended similarly.

The term "dissolve" is sometimes used for a different effect in which the transition is pointwise rather than gradated. This filter won't do that.

Syntax and Parameters

Dissolve (clip1, clip2 [, ...], int overlap, float "fps")

clip1, clip2, ...

Source clips; the dimensions of the clips and their color formats must be the same. If the clips contain audio, the audio properties must also be the same. The framerate is taken from the first clip, - see filters with multiple input clips for the resulting clip properties.

overlap

How many frames to overlap.

fps

The fps parameter is optional and provides a reference for overlap in audio only clips. It is ignored if a video stream is present. Set fps=AudioRate() if sample exact audio positioning is required.

Default: 24.0

Examples

# Load sources
a = AVISource("clipA.avi")
b = AVISource("clipB.avi")

# 30 frame Dissolve between clipA & clipB; last & clipA; last & clipB
# Resulting output: clipA (Dissolve) clipB (Dissolve) clipA (Dissolve) clipB.
Dissolve(a, b, 30)
Dissolve(last, a, 30)
Dissolve(last, b, 30)

Changelog

Version	Changes
AviSynth+ r2290	Added 16 and 32-bit support.
AviSynth 2.5.6	Added fps parameter.

$Date: 2022/09/18 12:22:43 $