Grass Valley Forums

Grass Valley Forums (http://forum.grassvalley.com/forum/index.php)
-   FIRECODER Blu & Pegasus (http://forum.grassvalley.com/forum/forumdisplay.php?f=46)
-   -   HD to SD conversion ? (http://forum.grassvalley.com/forum/showthread.php?t=9483)

antonsvideo 01-21-2011 05:28 AM

DC component precision
Set the DC component calculation precision level of the quantization matrix. The higher precision increases the
smoothness of the picture color gradations as well as the output file size.

8 bit
Recommended value for low bitrate encoding when the output file size is more important than picture quality..

9 bit
Standard value for movie encoding.

10 bit
High quality value, allowing for the best color gradations, but generating a bigger file.

SoundFreak 01-21-2011 05:51 AM

Thanks Anton, but what is written in the help file doesn't always translate to something one can understand easily :)

I have tested 9bit & 10bit, but can't find too see any difference.
Maybe this is strongly related to the quality of Camera used and quality of TV panel to view and judge upon.

As nowadays my projects are often 1 hour or less I tend to use 10bit as the stated larger file size doesn't affect me.

Even in combination with the Motion Search precision set to Highest (with error correction) my encode time is still bearable on my aging systems, which I don't mind to achieve the best encode I'm able to do.

Now waiting for a Edius timeline plug-in and it's pretty perfect for my DVD production workflow :)

tony 01-21-2011 03:53 PM

Quote:

Originally Posted by andrew_hd (Post 140367)
Keep it at 10bit for DVD.


Andrew

What would you keep it at for BluRay, the same?.

SoundFreak 01-22-2011 12:36 AM

Quote:

Originally Posted by andrew_hd (Post 140367)
Keep it at 10bit for DVD.


Andrew

Will do, thanks.


All times are GMT +1. The time now is 02:14 AM.


Copyright 2014 Belden Inc. All rights reserved.