View Full Version : Alternative Curve Compression
t3ch
25 Mar 2003, 09:20 PM
I did some tests with different high/low settings to see what kind of a difference each one made, however I didn't see any differences. Not to say there aren't subtle differences I can just not be noticing...
Any thoughts?
Also, I was looking at the alt_curve_c.gif that xvid includes... From that graph, I should think that anytime a file is reduced use High and use low if enlarged... am I assuming correctly?
t3ch
25 Mar 2003, 10:04 PM
Curve aggression defines how quickly the codec adapts bitrate to frames. A high aggression will help the codec aid low bitrate frames while hurting high bitrate frames and is better for very dynamic scenes (i.e. a slow motion scene, then up to a lot of motion very quickly). Low aggression adapts slower and won't improve low bitrate frames as much, but will not harm high bitrate frames much either. Medium aggression is a compromise of the two.
as haxed from doom9. Ok, so I was on the right track.
Has anyone done any tests or noticed just how much slower or faster the bitrate adapts? Like I said, what I was testing wasn't much help =/
Enchanter
26 Mar 2003, 08:07 PM
I did not see much difference either.
On a side-note, Koepi himself advises against using it, and I have since followed suit.
t3ch
28 Mar 2003, 11:52 AM
Well at least that's one less setting I have to tinker with ;)
Always of some help, danke =]
Enchanter
28 Mar 2003, 06:50 PM
You're welcome. ;)
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