[FFmpeg-devel] Option To Change Block Size

[Michael Niedermayer]

On Sun, May 11, 2008 at 12:52:21PM +0200, Benjamin Larsson wrote:
> Michael Niedermayer wrote:
> > On Sat, May 10, 2008 at 06:30:42PM -0700, Mike Melanson wrote:
> >> Hi,
> >>
> >> In experimenting with ZMBV, I have found that different block sizes 
> >> produce better results for different types of videos. Right now, 
> >> changing block size entails changing code and recompiling. Is there a 
> >> command line option that would allow me to pass the block size into the 
> >> encoder? I couldn't find anything and I thought I would ask before I 
> >> added the option myself.
> > 
> > Why would we want an option to set the block size?
> > I mean the fact that different block sizes are better for each video means
> > the user can only use trial and error for each file. But that can be done
> > automatically faster and better ...
> > 
> > A 2 pass mode which selects the best block size for each group of pictures
> > (keyframe and the following frames) seems to be the obvious thing to do.
> > 
> > [...]
> > 
> 
> I need that for the flashsv encoder also. But I was to lazy to implement it.

a block size or a 2pass mode?

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The greatest way to live with honor in this world is to be what we pretend
to be. -- Socrates
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