[vorbis-dev] Tarkin at last
jack at icecast.org
Thu Jan 4 15:24:08 PST 2001
the quality levels we worked with were 95% discard. even 99% discard
was pretty decent.
zero-tree packing was what monty and i discussed to reduce the size, and
hatamoto, monty, and i had some ideas on packing colors efficiently.
obviously there are a lot of easy improvements that can be made.
1) find a better wavelet
2) zero-tree packing
3) color packing
any other ideas?
On Thu, Jan 04, 2001 at 12:30:51PM -0500, Gregory Maxwell wrote:
> On Thu, Jan 04, 2001 at 11:09:37AM -0600, Aaron Plattner wrote:
> > 95 seems way too high. Try ./tarkin 20 or ./tarkin 10 (quality 1 is pretty
> > impressive for being 128k). 20% seems to make output.tark be the same size
> > as all the .pgm's combined. (Of course, I don't actually know how it works
> > yet, so take that with a big grain of salt).
> Esp considering it's just performing thresholding, no zero-tree packing, no
> pre/postprocessing of the input (it should be degammad mapped into log
> space), and the current packing is expansive.
> Anyone know if there is a zero-tree packing implimentation that is
> generalized to n-space?
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