cut a scene using VirtualDub

[exon]

I'm trying to cut a scene out of a movie I converted to a DivX AVI via DrDivX.

I had already gone through the audio and muted some foul language. I loaded that audio track and the DivX AVI into VirtualDUB Mod.

I set the Video and Audio streams to 'Direct Copy', then went through the timeline setting in and out points and using Edit-Delete to remove the scene. Everything worked great the first time (audio even stayed in sync), except for ONE scene.

For some reason I can't get this one scene to delete from the timeline. It is very short, maybe 20 frames. I set my in and out markers, hit edit-delete, and the scene is gone in the timeline (I can go forward and backward with the arrow keys, and the scene IS in fact deleted). However, when I go to File-Save AVI and save out the file to a new filename, the video is still there and it looks like the audio got cut.

How come it worked great the first time, but now I can't cut out this one short scene? Tried both VirtualDub and Virtualdubmod.

-Matthew

[redwudz]

Did you use the 'keyframe' keys to move between keyframes? Xvid and Divx file are very poor for editing as the default keyframe setting is every 300 frames. That makes frame accurate editing all but impossible. The newest VirtualDub can cut about anywhere, and just re-encode at the cut points, though I haven't tried it.

It's not a problem with VirtualDub, it's a problem with the Divx/Xvid codecs or probably with most highly compressed codecs.

I've resorted to converting a file to DV when I needed to cut on a exact frame.

[exon]

I don't think I used keyframes, as using the arrow keys moved me forward/backward one frame at a time.

In fact, once I set my in and out points and deleted the short clip, everything looked perfect in the timeline. It just rendered with the audio deleted but not the video.

Strange that it would work perfectly the first time on about 8 clips, but not this one.. All I want to do it cut a few frames out, should be no reason to re-encode..

-Matthew

[jagabo]

In Direct Stream Copy mode any piece of a video you KEEP must start on a keyframe. VirtualDub will automatically move the pevious keyframe (when it saves) if your mark is not on a keyframe.

Use one of the latest beta versions of VirtualDub in Smart Rendering mode and you can mark in/out on any frame. It will reencode only the small parts around the cuts that need reencoding.