EsounD: patch for Mac OS X coreaudio device selection

[Ojas Parekh <ojas parekh gmail com>]

I've included a patch to audio_coreaudio.c that allows coreaudio  
device specification, e.g.:

[dbook: /tmp]$ esd -d "Built-in Input"
- using device Built-in Input
using device Soundflower (2ch) for output:
        with sample rate 44100.000000, 2 channels and 32-bit sample
using device Built-in Input for input:
        with sample rate 44100.000000, 2 channels and 32-bit sample

A complication is that a specified device may not have both input and  
output capabilities, in which case the driver resorts to the default  
input or output device.  In the above example, "Built-in Input" does  
not have any output channels, so the driver selected "Soundflower  
(2ch)," which is the default output device on my system, for output.

-Ojas

Attachment: esound-audio_coreaudio.patch
Description: Binary data