ADPCM and Wine

[Andreas Mohr]

On Fri, Jan 11, 2002 at 07:16:30AM -0600, David D. Hagood wrote:
> Is anybody working on support for playing ADPCM wave files under Wine? 
> If not, I'd like to take a crack at it.
> 
> I have an app that I use (Delorme's AAA MapNGo 4.0) that uses ADPCM wave 
> files to contain spoken information on attractions. I know that Wine can 
> access my sound system to play normal PCM wave files, as MN4 also has 
> speech synthesis that does work. However, any attempt to play a ADPCM 
> file results in the program pausing for a length of time, then 
> continuing. I infer that this is because the lower levels of Wine don't 
> know how to handle ADPCM.
> 
> ADPCM isn't rocket science - several programs, including sox, understand 
> the protocol.
> 
> So, is anybody working on this (outside of TG and Lindows)? Any 
> (non-null) pointers to useful information on how Wine has put together 
> the sound subsystem? I'm not a Windows programmer, I'm an embedded 
> systems and DSP person, but if I can find a block of code to hook into I 
> can make this happen.
Try --debugmsg +driver,+mmsys,+mci,+mmio,+mmtime,+mciwave,+msacm,+wave,+midi,+
mmaux,+relay (they're all inside dlls/winmm/*).

That should help a lot in finding what's missing.

-- 
Andreas Mohr                        Stauferstr. 6, D-71272 Renningen, Germany
Tel. +49 7159 800604                http://home.nexgo.de/andi.mohr/