No way to find a key frame Corel VideoStudio?

[Djard]

I spent an hour combing the X10 "Users Guide" that has much to say about key frames but not even a hint on how to find one. Has anyone figured out how to find a key frame, without fiddling with filters that supposedly involve key frames?

[hello_hello]

I flicked through the X10 users guide myself, and I found information on setting keyframes (I assume when the video is exported) but nothing on how to find existing ones.

I've never used VideoStudio, so ignore this post if it doesn't help, but you can find keyframes with a media player such as MPC-HC, or using the keyframe buttons on VirtualDub2's navigation bar. That'll also tell you their frame numbers. I don't know if that'll help you....


[Attachment 91757 - Click to enlarge]

[davexnet]

In normal NLE editing, the source keyframe locations are not relevant, since
everything is being re-encoded; the cuts can be anywhere

[Djard]

Nice to know that cuts in the video track can be made anywhere. But it is a little disappointing that VS does not display the GOP structure. I have not used excellent VirtualDub for a long time, so I will use user-friendly AVIdemux and make a note of the time a particular I-frame appears. In my experience, cutting at an I-frame avoids aaaudio-video asynchrony. BTW, does VS support lossless video copying, like AVIdemux does? I find myself in need of editing finished work; and each time video is recoded, some quality is lost.

[davexnet]

Nice to know that cuts in the video track can be made anywhere. But it is a little disappointing that VS does not display the GOP structure.

Internally the source video is decompressed (as is the audio); they're all independent frames at that point.

BTW, does VS support lossless video copying, like AVIdemux does? I find myself in need of editing finished work; and each time video is recoded, some quality is lost.

I don't think so. The usual job of a NLE is to take multiple videos, of the same or different specifications, create the cuts,
transitions, effects, etc., etc. and encode it to a format of your choice.
It cannot really be compared to Avidemux in that its main purpose is completely different

[Alwyn]

I spent an hour combing the X10 "Users Guide" that has much to say about key frames but not even a hint on how to find one.

It's not a case of "finding" them. I'm pretty sure these "keyframes", in this context, are not the I frames of a video, as in AVIDemux.

If VS is the same as other similar editors, keyframes are created by the user to control effects and are only created when you apply or adjust an effect.

I don't have VS but in Magix VDL, keyframes will only appear when you click on the object that you've applied them-to.

This should help. It appears that the keyframes on the audio object are the white squares.
https://www.youtube.com/watch?v=ZIQUVgUf5_0

I have not used excellent VirtualDub for a long time

VDub is a very very basic editor and Non-Linear. Unless you are doing simple cuts, you would be far better off using a proper NLE. You should only have recode once, when exporting your source material.

[Alwyn]

Another example, with keyframes being created by the user to animate the objects. The keyframes are the diamonds in the KF editing panel, upper left corner of the screen:

https://www.youtube.com/watch?v=L6ee2o3h6qs

[Djard]

Thank you all for the valuable help.