[OctDev] DPCM

[LEo <le...@gm...>]

I have implemented the following function:
dpcmenco, dpcmdeco and dpcmopt
They were not implement yet.
(see: http://octave.sourceforge.net/communications/overview.html)
I would like share it, so it might be incorporated into Octave-Forge.
They follow in the attachment. An usage example follows along it.
If someone could include them into Octave-Forge tree, I would be pleased.
Regards,
Leonardo Araujo