Manual I-Frame Placement

[phatslug]

Is it possible?
I'm using VDub & DivX Pro 5.05

Alot of times dark colors moving on light background leave "dirt" if you know what I mean, looks damn ugly

So is there somehow I can scroll to the frame in VDub or something, and tell it to put an I frame there (when it encodes) to clear the dirt?? Im not tied to VDub so anything else will work too.

[DJRumpy]

It depends on what 'damn ugly' is. Unless your visual problem is due to a bitrate shortage, then the I frame won't help. Is it macroblocking?

To do this, you would isolate that particular piece of clip, shortening the I-Frame insertion rate for that part of the clip, and then join it back in with the larger clip. It will take a bit of editing/saving of temporary files, but it should work.

[phatslug]

True... I should have defined myself better.
Heres damn ugly:



In this case the text was scrolling up, leaving trails as it went. Not a nice effect.

And your idea for inserting I-Frames sounds good. Hiking up the bitrate works too, but I need the smaller file size. I can always count on you for answers DJ.

[DJRumpy]

I supposed either method would work, allowing you to edit the troubled spot, while leaving the rest 'as is'. This is a curious effect though. What motion detection settings did you use. Also, did you utilize multipass?