Hi!

In this patch the phase problems should be gone, if still think that you 
got "phase reversal" problem
please sendme a dump of the /proc/asound/card0/dsp/sample content while 
you are playbacking
whatever giving you "phase reversal" problem.

On the AC3 front I've managed to get my receiver to switch on to 
"Digital Surround" mode (instead of PCM), which
must mean that it finally detected the AC3 stream. But still no sound, 
 got no idea why, but please if you
have time give it a test.

Consider this patch as "experimental", just in the mean, dont be 
surprised if something that worked
OK before is now broken.

Summar of changes:
- Phase reversal fixes.
- Some rewrites on playback code, related to the sample rate setup.
- AC3 stuff ....

/Benny