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

David Bryant david
Thu Aug 16 07:59:49 CEST 2007


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.



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