see: http://www.vapoursynth.com/doc/functions...every.html
in short:
Cycle: defines how large chunks that the content is split into are
so a cyble of 10 would look at frames 0-9 10-19 ....
Offsets: which frames to keep, given by their index in the chunk
So with Cycle: "5" and Offsets: "0 1 2 4" you would drop frame 3 8 13 18 ... and keep the rest.
To know what offsets you want, you look the source with SelectEvery deactivated and then look where you got duplicates if for example you look at the frame 10-14 and frame 11 is a duplicate, you set Offsets to "0 2 3 4" to only drop the frames 1 6 11 16 21 ....
If there is a fixed pattern to duplicate frames, this is the fastest way to get rid of them.
Cu Selur
in short:
Cycle: defines how large chunks that the content is split into are
so a cyble of 10 would look at frames 0-9 10-19 ....
Offsets: which frames to keep, given by their index in the chunk
So with Cycle: "5" and Offsets: "0 1 2 4" you would drop frame 3 8 13 18 ... and keep the rest.
To know what offsets you want, you look the source with SelectEvery deactivated and then look where you got duplicates if for example you look at the frame 10-14 and frame 11 is a duplicate, you set Offsets to "0 2 3 4" to only drop the frames 1 6 11 16 21 ....
If there is a fixed pattern to duplicate frames, this is the fastest way to get rid of them.
Cu Selur