Clean up prerendered video ...

megabit wrote on 4/7/2009, 4:15 AM

Is it just me, but if I selectively prerender to mpg rather than avi, clean up prerendered video doesn't remove the mpg's?

Comments

megabit wrote on 4/8/2009, 1:55 AM

Could anyone confirm or deny, please?

megabit wrote on 4/9/2009, 2:03 AM

I'm sorry for bumping this one up, but seems impossible nobody would know that...

When I selectively prerender to anything but avi, the generated files are never deleted using "Clean up prerendered video"; I need to clean my disk manually. Of course Vegas doesn't report anything.

Is this normal?

Andy E wrote on 4/9/2009, 3:47 AM

Is this normal?

I'm not sure that normal is the word I'd use but the same thing happens for me.

The .sfl files are removed but not the .mpg files.

megabit wrote on 4/9/2009, 4:11 AM

Thanks Andy.

Of course this is not "normal", certainly not what I'd expect it to be. But it's not the only instance where mpg files are treated differently than avi's, for instance:

1. you cannot network-render to mpg
2. you cannot trim mpg's when saving your projects along with trimmed media...

farss wrote on 4/9/2009, 4:49 AM

Whilst I agree that it's odd that Vegas doesn't delete prerendered mpeg files there's nothing normal about mpeg video. You cannot simply cut 1 frame off the end of it without certain implications. Cutting one frame off the beginning could have very serious implications as the first frame is going to be an I frame you'd make the whole GOP unreadable.

Bob.

megabit wrote on 4/9/2009, 4:59 AM

Sure - mpg is long GOP, but this doesn't mean some intelligence could be implemented, and trimming done at I-frames. After all, when I need to create an archive with trimmed media, the single-frame accuracy is not important.

Not being able to network-render to mpg has rather to do with some licence limitations than technicalities.

And why Vegas doesn't clean prerendered mpg files, still beats me.

farss wrote on 4/9/2009, 5:27 AM

"And why Vegas doesn't clean prerendered mpg files, still beats me. "

Good question.
It's been years since I've prerendered anything in Vegas. I stopped doing so well before HDV came along because even with DV it left a mess behind. Worse by default it left them in my system drive and I was not impressed when that ran out of space.

It's grossly unreliable if you save incremental project file names from memory.

Bob.

LJA wrote on 4/9/2009, 7:48 AM

I agree about Vegas not cleaning up prerendered files. I also avoid using them for that very reason. Occasionally I do, however, so thanks for reminding me to clean them up.

As for network rendering mpg files: they work fine; there is no license problem as far as I know. One cannot use distributed rendering for mpgs. The problem is that, because of long GOP, or short GOPs for that matter, sections cannot be easily stitched together.