[MPlayer-dev-eng] Re: CVS: main/DOCS/tech libavc-options.txt,1.26,1.27

Rémi Guyomarch rguyom at pobox.com
Wed Jan 1 16:41:06 CET 2003


In case you didn't noticed, Michael committed lots and lots of things
in libavcodec recently : qpel, bframes+4mv fixes, better bframes ME,
user-selectable ME compare functions, diamond size selection and a
bunch of other things. Let me say a huge THANK YOU !! to Michael,
libavcodec is starting to be simply the best mpeg4 encoder around ! :)

On Sat, Dec 28, 2002 at 01:23:30AM +0100, Michael Niedermayer CVS wrote:
...
> +qpel	use quarter pel motion compensation
> +	Tip: this seems only usefull for high bitrate encodings
> +

In my own tests, qpel seems to help a lot in terms of PSNR & average
quantizer even at moderate bitrates (700-800 kbits/s). It eats a huge
number of cycles though :)

-- 
Rémi



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