[amsat-bb] sstv software

[Joseph Armbruster]

Amsat Folks,

Any recommendations as per sstv software?  I was looking for something 
open source, so that I could perhaps hack at the code in my free time.  
My only find was Digital Master 780.
http://www.ham-radio-deluxe.com/Downloads/GPLOpenSourceCode/tabid/61/Default.aspx

Are there any others around?  I wanted to put this out there to see what 
other more experience hams have used.  Thanks in advance!

Joseph Armbruster
KJ4JIO