[MEncoder-users] lavc or xvid

[Alex Samad]

On Tue, Aug 28, 2007 at 05:48:51AM +1000, Alex Samad wrote:
> On Mon, Aug 27, 2007 at 10:48:37AM -0700, RC wrote:
> > On Sun, 26 Aug 2007 11:22:03 -0700
> > Corey Hickey <bugfood-ml at fatooh.org> wrote:
> > 
> > > > *cmp=2 makes for quite a bit of blockiness, and is usually a bad
> > > > idea.
> > > 
> > > Under what circumstances? I have not observed this, though I admit I 
> > > haven't done any testing of the *cmp options in a long time. 
> > 
> > Under all I've seen.  The only thing helped by *cmp=2 is animation
> > (and it helps there a lot).  Live action suffers horribly, getting very
> > blocky.  If you search the list archives, you'll find dozens of
> > instances of people asking why their encoded video is so blocky (often
> > with 7000kbps DVD-video encodes), being told by me or others they
> > should use cmp=0/3 instead of cmp=2 (unfortunately suggested in the HTML
> > docs), and it never fails that they respond and say how much better that
> > looks...
> 
> I certainly have blocking and I got the options from the web site. its not 
> really fast action, but definately live action, all the solid coloured area are 
> blocky.
> 
> I will try removing the *cmp or aleast changing them to 0/3 and see what 
> happens

I have retried with *cmp=3

/usr/bin/mencoder -quiet MOV002.MOD -oac mp3lame -lameopts preset=standard 
-ffourcc DX50 -ovc lavc -lavcopts 
vcodec=mpeg4:threads=2:autoaspect=1:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:vmax_b_frames=2:vb_strategy=1:precmp=3:cmp=3:subcmp=3:preme=2:qns=2:dc=10:vbitrate=1200:cbp:vpass=2 
-ffourcc DX50 -passlogfile /tmp/user/1000/tmp.KuxlpO7797/divx2pass.log -ofps 25 
-vf softskip,hqdn3d=2:1:2 -o MOV002-1200-0.avi


but I am still getting rather blokie areas, especially on white wall's. I am 
trying bitrates 800, 1200, 1600

would i be better off cutting back the options and trying with the basic one 
like

vcodec=mpeg4:threads=2:mbd=2:mv0:trell:v4mv:aspect=16/9 and still using -vf 
softskip,hqdn3d=2:1:2 

> 
> > 
<snip>


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