[MPlayer-users] lavc vs. xvid (and improving lavc quality)

[D Richard Felker III]

On Sun, Jun 06, 2004 at 05:06:05AM -0700, rcooley wrote:
> On Sun, 6 Jun 2004 13:33:10 +0200
> matthias-wieser at t-online.de (Matthias Wieser) wrote:
> 
> > ??? It doesn't matter if you use 1 or 2-pass encoding if the problem
> > lies at the strategy how mencoder distributes the availabele bits
> > within one frame.
> 
> That is not the problem here.
> 
> 
> > You may try to explain how to do 2-pass encoding with TV-sources.
> 
> First you save it to a lossless format, and then you do two-pass
> encoding on the resulting file.
> 
> I never said you should do 2-pass on a TV source, just that
> single-pass can't give very good results without very high bitrates.
> 
> > denoise3d doesn't lower quality of tv broadcasts significantly. It 
> > improves compressibility.
> 
> Yes, denoise does lower picture quality plenty.  It improves
> compressibility, but so does scaling-down the video to 1/8th it's
> oroginal size...

This is nonsense. At fixed bitrate encoding, denoise3d will always
improve quality while scaling down to 1/8 size will ruin it.

Rich