Doom9's Forum - View Single Post

SirDavidGuy · 12th February 2003, 03:00

Hmmm.... Don't remember exactly, but the XviD sources have the quant matrices stored as 1 byte, limiting the max quant to 255. This should probably make most values equal to zero, since most things which might be bigger than 510 are in the real upper-left of the DCT-domain array; most other things don't transform back to valid spatial-domain arrays.

12th February 2003, 03:00	#2 \| Link
SirDavidGuy Flying Attack Donkey Join Date: Mar 2002 Posts: 159	Hmmm.... Don't remember exactly, but the XviD sources have the quant matrices stored as 1 byte, limiting the max quant to 255. This should probably make most values equal to zero, since most things which might be bigger than 510 are in the real upper-left of the DCT-domain array; most other things don't transform back to valid spatial-domain arrays. __________________ "Bork Bork Bork"