Vdub keyframe issues

[AussieDOOS]

I've read heaps of posts on the keyframe issue in Vdub where editing is only possible where beginning and end points are set at keyframes. I'm trying to edit commercials out of a capped DivX episode. What I want to know is, is there any tool which allows editing without the use of keyframes?

Also, for future capping, (I'm using Vdub with the DivX 5.0.2 codec), I notice in the 'General Parameters' tab of the DivX codec settings dialog, along with being able to adjust the max. interval between keyframes, there is a setting for scene change threshold. Am I correct in guessing that REDUCING this value will increase the sensitivity to changes during capping and thus result in more keyframes in the final file? Does the frequency of keyframes have any effect on performace or affect file size at all?

[AussieDOOS]

bump

jeez guys, thanx for all the f*&$@#n help

[D_Knife]

Ok I'll bite

is there any tool which allows editing without the use of keyframes?

A Keyframe is a complete frame of video usually lightly compressed
all other frames are partial or changes of frames
This means that you can't normally edit on a non-keyframe

small example
K=keyframe
I=intraframe
our video stream

KIIIIIIKIIIIIIIK

if you cut on a keyframe - no problems it's a full frame with all information
however if you cut on I (say the third or fourth in) then you might only get the information from the previous frame and not full information

Am I correct in guessing that REDUCING this value will increase the sensitivity to changes during capping and thus result in more keyframes in the final file?

Yes

Does the frequency of keyframes have any effect on performace or affect file size at all?

Yes - because keyframes are not compressed as much as other frames this can increase your filesize, how much depends on how close together your keyframes are. If you compress something in say either a MJPEG codec or Huffy these only use keyframes only so you can edit all frames as you wish

[holistic]

Well worded D_Knife

For AussieDOOS :

1: this is a forum NOT ICQ or IRC .Replies take time. Chill !
2. it is (was) the weekend and a lot of us do have lives outside here.
3. comes after 2

... thanx for all the f*&$@#n help ...

You are welcome, and **** you too.

][

[AussieDOOS]

Cheers D_knife, useful info



oohh nice work holistic, cmon, fire up a bit more, u sound really big and scary. :P :P