XviD Editing - Jagged Transitions

Infinite5ths wrote on 12/27/2008, 1:37 PM
I have a bit of trouble editing the Xvid MPEG-4 AVIs from my Flip Mino. Transitions between clips occasionally flash out-of-order frames.

Most often this takes place when I've dragged two source clips to the timeline, trimmed them [by dragging the edges], then slid one to overlap the other. The clips will fade in/out as expected [in the Vegas Preview Window], except for a 'flash' or two. These 'flashes' are simply momentary blips of one clip or the other by itself at full opacity. Normally the frame that 'flashes' is out of sequence. I can even use the keyboard arrow keys to step through frame by frame till I reach the 'flash' frame and stop on it. These 'flashes' DO appear in the final output render.

My work-around for now is to use GearShift to render full-length proxy clips from a media bin that contains all the source clips used on the timeline. I use a custom Cineform codec proxy preset I created just for this. Rendering the project from the new Cineform source clips yields a clean render.

I guess these are artifacts of the Xvid compression (b-frames, etc.). If anybody has info to the contrary, or a better solution, please let me know.

Thanks!
--
Mike

Comments

ushere wrote on 12/27/2008, 7:38 PM
way to go.....

it's surprising how people seem to think that any old (or rather new) video format can be edited directly on the t/l. i learnt this early on trying to edit .mod's from a clients jvc camera.

dv and hdv i find edit quite normally without proxies, but nearly everything else i usually bump to a vegas friendly format - especially stills!

have a good new year

leslie