[MPlayer-dev-eng] Weird audio with Mac OS X 10.4

[Chris Roccati]

On May 16, 2005, at 02:17 , Nicolas Plourde wrote:
>> The attached patch simplifies the format matching logic, yelding  
>> at worst the same results as before, and fixing the "unwanted  
>> mono" malfunction in many cases. It still works fine under Mac OS  
>> X 10.3.9.
> commited

Sometimes, CoreAudio will accept the change but return the old values  
in the last AudioDeviceGetProperty().
Leaving the format unchanged and relying on the conversion routines  
in MPlayer is, apparently, not an option, as most of the time, buffer  
underrun errors will be generates, sometimes serious enough to  
interfere with the playback.

The right thing to do, would be to use the AUHAL converters and leave  
the AudioDevice settings alone.
This works fine for iTunes: with the Audio MIDI Setup, you can change  
the resolution and sample rate on the fly and hear the difference in  
quality...