[MEncoder-users] Compressibility test

Rich Felker dalias at aerifal.cx
Wed Apr 27 20:10:21 CEST 2005


On Wed, Apr 27, 2005 at 04:33:46PM +0200, Nico Sabbi wrote:
> Guillaume POIRIER wrote:
> 
> >My advice would be to encode 10 equally long (e.g. 0.5% of the movie)
> >sequences distributed at 10 different moments of your movie, all at
> >quant 2. You want those sequences to add up to around 5 % of the movie
> >duration.
> >
> >Guillaume
> >
> > 
> >
> 
> it seems that vqscale=2 doesn't indicate anymore "best quality", maybe 
> since Michael
> introduced Lagrange multipliers. Using vbitrate=9999 or vqscale=0.01 
> always raises
> the bitrate by a large amount.
> Michael can you clarify this, please?

vqscale=2 has NEVER meant best quality. qp ranges from 1-31 for mpeg
formats.

Rich




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