PDA

View Full Version : x264:new AQ algorithm


Chengbin
20th July 2009, 13:42
I see that from r1184 there is a new AQ algorithm, like AutoVAQ. It says visual improvement is up for debate.

I just want to know one thing. Is it impossible for the new algorithm to create worse looking video than AQ mode 1?

imk
20th July 2009, 14:00
There's already a thread on it:
http://forum.doom9.org/showthread.php?t=147067

LoRd_MuldeR
20th July 2009, 14:09
Is it impossible for the new algorithm to create worse looking video than AQ mode 1?

No, it isn't.

If AutoVAQ was guaranteed to look at least as good as the "normal" AQ, then there would be no need for debate. It could be made the new default and that's it ;)

What the new AQ mode does is generating significant better SSIM. But we all know that better metrics is not necessarily better subjective quality...

Guest
20th July 2009, 14:20
Closing so as not to have redundant threads discussing this.