[MPlayer-users] libavcodec vbitrate problem

[Kresimir Kukulj]

Quoting Arpi (arpi at thot.banki.hu):
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Hi,
> 
> > > -lavcopts vqmin=2
> > > should allow higher bitrates & looks better (isnt the default cuz it cause
> > s 
> > > clipping in the quantizer for h263 but is ok for mpeg4)
> > 
> > Ok. I tried and it helped. Thanks.
> > Now I get (first two chapters):
> > 
> > vbitrate|actual bitrate|filesize
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > 800     |796.2         |24549218
> > 1600    |1500.8        |51020492
> > 2000    |1706.0        |57971188
> > 
> > This is much closer bitrate.
> > Although, quality was very good even at 800Kbps.
> > libavcodec gives suprisingly good first pass.
> > 
> > Are there any more tips like that for libavcodec ? I have read the man page
> 
> increase resolution of source material - 1800 for such small resolution is
> nonsense, there is no such big amount of data to encode...
> 
> 1800 is usually used for full dvd size...

I'm scaling/cropping DVD source from 720x576 -> 704:304.
Is that small ??

-- 
Kresimir Kukulj                      madmax at iskon.hr
+--------------------------------------------------+
Old PC's never die. They just become Unix terminals.