m2t

auggybendoggy wrote on 9/13/2006, 9:58 PM
Guys what is mpeg to template mean?
I read the manual and did a forum search but not a real good explanation.

I assume this much:
HDV is captured as Mpeg format due to it's high memory density.
Thus to manage HD space it's mpg'd.

Is it possible to capture HD as AVI or any other uncompressed format.

If you can only capture it compressed are there options for compressed formats or settings?

Auggy

Comments

jrazz wrote on 9/13/2006, 10:00 PM
Is it possible to capture HD as AVI or any other uncompressed format.

It is possible using cineform.

You can use a proxy such as gearshift from vasst or an intermediary format such as cineform.

j razz
mbryant wrote on 9/13/2006, 11:48 PM
Just to elaborate: HDV is mpeg2, transport stream. So if you capture the original, unaltered material, it will be just that.

Cineform isn't uncompressed... though it is less compressed. But this is more than a straight capture; it is being encoded using the Cineform codec.
farss wrote on 9/14/2006, 12:01 AM
What's recorded to the tape in the camera is what ends up on your HDD as said above.
Yes one can capture it as uncompressed, take HD component from a HDV deck into a HD capture card, requires very fast disk arrays and deep pockets.

Unless you're tied to a broadcast workdflow working this way gains you zero, you might even loose a little. You can render out to uncompressed HD in Vegas without the need for the expensive I/O cards and disk arrays although you'll still need a LOT of disk space.

Even so though the quality will be no better than what the camera recorded to tape in the first place.

You might only do this if you needed to conform to a HD T/L, with Vegas and the CF DI I cannot imagine why you'd need to do this.

Bob.
auggybendoggy wrote on 9/14/2006, 5:20 PM
I'm not thinking so much of quality cause the q. os pretty good. I was thinking more about processor consumption.

Am I incorrect in believing that a compressed file is harder on the cpu slowing down the system for editing, preview and rendering?

Seems like a Flat AVI (no effects) will preview and render faster than a heavily compressed mpg?

Aug
mbryant wrote on 9/15/2006, 4:51 AM
Yes, you are correct: mpeg files are "harder" on the processor, and HD ones even more so. That's why people often use either the Cineform intermediate (which is less compressed), or a DV proxy (and swap back to the original material for final render).

With Vegas 7 the handling of the native HDV is MUCH improved.. if your PC is fairly fast and the edits not too complex, then it may be able to cope with the native m2t files.

Mark