nil

Do nothing. Keep the section unchanged at normal speed and pitch.

cut

Remove the section completely from the output.

speed:<val: float>

Range: (0-99999)

Change the playback speed while preserving pitch using time-stretching.

Implemented with FFmpeg's atempo filter.

varispeed:<val: float>

Range: [0.2-100]

Change the playback speed by varying pitch, like analog tape or vinyl.

Implemented with FFmpeg's asetrate + aresample filters, which change the sample rate so speed and pitch shift together.

volume:<val: float>

Adjust the audio volume by a factor of val. 1.0 = normal, 0.5 = half (-6dB), 2.0 = double (+6dB).

invert

Invert all pixels in the video section.

hflip

Flip the video section horizontally.

vflip

Flip the video section vertically.

zoom:<val: float>

Range: (0-100]

Zoom in or out by a factor of val. 1.0 = no zoom.

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Version 30.2.0
Generated: 2026-05-10.