[FFmpeg-devel] [PATCH] handle WavPack stream version 0x410

Kostya kostya.shishkov
Thu Aug 16 09:20:02 CEST 2007

On Wed, Aug 15, 2007 at 10:59:49PM -0700, David Bryant wrote:
> Hi,
> Kostya wrote:
> > On Sun, Aug 12, 2007 at 08:52:25PM -0700, David Bryant wrote:
> >> Hi,
> >>
> >> This patch updates the WavPack decoder to handle version 0x410 streams. 
> >> These are created using the --optimize-mono switch with the command-line 
> >> encoder. Essentially, these streams can have individual blocks encoded 
> >> as mono data when the left and right channels of the source file are 
> >> identical. This ends up saving significant space over encoding them as 
> >> stereo because of a limitation in the entropy encoder (it can't 
> >> efficiently encode runs of zeros that occur in only one channel).
> > 
> > Hmm, may I interest you in updating this Multimedia Wiki page?
> > http://wiki.multimedia.cx/index.php?title=WavPack
> Once figuring out how to register, I filled in the obvious missing 
> information (like the false_stereo bit) and added some details to the 
> existing stuff.
> Please let me know if there is something specific you would like 
> described there.

Thank for your work, I think it's enough details but don't hesitate to
add anything you consider important. And your section from "Data compression:
The Complete Reference (4th ed)" just have all the complimentary information.
> Thanks,
> David

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