LosslessCut has support for normal JavaScript expressions.
You will be given a variable segment and can create an expression that returns true or false. For example to select all segments with a duration of less than 5 seconds use this expression:
segment.duration < 5LosslessCut has support for normal JavaScript expressions. You will be given a variable segment for each selected segment and can return a new segment with modified properties.
See more examples in-app.