[MPlayer-users] Re: Problem Encoding Solid Color Objects With LAVC MPEG4

[Michael Niedermayer]

Hi

On Tuesday 23 September 2003 21:44, Angel wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>
> Rich wrote:
> > I agree. There are no blocking artifacts in either. Perhaps Angel was
> > confusing them with some different sort of artifact -- just plain
> > noise -- but as far as I can tell that has nothing to do with the
> > encode but rather it's just noise in the source. Using the hqdn3d
> > filter might help that.
>
> As I stated in my last post... the problem is far less noticeable on a
> computer monitor (which I assume is how you viewed it). The problem I'm
> talking about is the fact that the noisy background on the wall looks like
> large blocks moving around in the lavc version. The divx / xvid version
> does not do this. The source consists of a noisy background wall... that is
> how it should look in the encoded version (especially with a bitrate of
> 1500 and little to no motion). The lavc version makes the background look
> noisy by shifting large solid color blocks around. This is VERY noticeable
> on a T.V.
try ibias=128:vfdct=2 and remove trell

[...]
-- 
Michael
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buf[i]= qp - buf[i-1];				(violates patent #?)
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