#390 Remove Frames, Decimate, Frame Copy

[Anonymous]

Virtualdub has Frame Rate - Frame Rate conversion option which we can decimate by 2, 3 or any by other. Also change frame rate to any frame rate.

Your remove Frames Filter we can scan the video for any correct duplicate frames in a video.

1. Would it not be possible to Scan remove frames and used the Remove Frames info to do a simple frame copy. I don't understand why a recode is needed as it is only removing frames which we know can also be done with Decimate using frame copy.

So isn't Remove Frames not just a decimate frames process itself. But having has the ability to align the audio to the video.

This leads to another question how is Remove Frames able to align the audio to a set fps. Are you just changing the audio fps. Can we have the ability also to change the audio fps without re-encoding the audio also as can be done with the video.

[Anonymous]

1. This leads to another question how is Remove Frames able to align the audio to a set fps. Are you just changing the audio fps. Can we have the ability also to change the audio fps without re-encoding the audio also as can be done with the video.

[Anton Shekhovtsov]

Frame copy in filter: not trivial, such process is not supported by vd pipeline.
Audio: I'm not sure if there is any option to touch audio rate without reencoding it. This is technically possible but in practice audio should be encoded at some standard rate.

[Anonymous]

But if your Remove Frames filter is (moved) and coded be part of the [Frame Rate] options. Then it becomes not a filter but a VD2 process we could then use. Remove Frames usage would be the same. But then is able to be uses with Direct Copy to speed up removing all frames found using Remove Frames.