[MPlayer-dev-eng] Mac OS X native audio output

D Richard Felker III dalias at aerifal.cx
Thu May 22 07:52:59 CEST 2003


On Thu, May 22, 2003 at 01:52:23AM +0200, Dan Christiansen wrote:
> On Wednesday, May 21, 2003, at 09:10 PM, Alex Beregszaszi wrote:
> 
> >Hi,
> >
> >>I just updated it to fix the issues Alex pointed out, as well as a few
> >>
> >>other things. I think it's ready for prime time now :)
> >Okay, ready to commit (and made the needed Makefile changes, as you
> >forgot them ;), but now I've a question: should mplayer prefer -ao
> >macosx over -ao oss?
> 
> OSS is non-existent on Darwin since there is no, and probably never 
> will be, entry for the sound card in /dev/. (It's simply not the way 
> it's done on Darwin - AFAIK /dev is only used for drives, terminals  
> and serial ports.) So it really doesn't matter. About the Makefile, 
> etc., I did indeed change it, I just forget to resend it ;)
> 
> Devros, the developer of MPlayerOSX, notified me that there's a bug 
> where 22050Hz audio stutters. I believe that it's due to a bug in the 
> mplayer resampler which doesn't handle 32-bit float audio too well. 
> Speaking of which, the usage of float audio in MPlayer seems far from 
> widespread - there's no support for it in pl_volume either. I know 

pl_* are obsolete and should be removed, but no one's written the code
to allow interactive volume control with af_volume... :(

Rich



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