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[Discuss-gnuradio] gr-audio: add query device names?

From: Michael Dickens
Subject: [Discuss-gnuradio] gr-audio: add query device names?
Date: Wed, 5 Feb 2014 11:43:30 -0500

It's all well and good to send in an audio device name to the gr-audio 
sink/source, and then see if that device name matches anything / works / is 
found.  In my fixes to gr-audio-osx, if the audio device was specified but not 
found, the code will print out a list of available device names and use the 
default device.

This got me thinking: Why not change the gr-audio API to include a method that 
returns all known device names (output ones for sink and input ones for 
source)?  I can easily do it on OSX native, and Alex Csete has a means for 
doing it on PortAudio; I have no idea how difficult this would be for any other 
audio option, but I generally like the idea.

What do others think? - MLD
Michael Dickens, OSX Programmer
Ettus Research Technical Support
Email: address@hidden
Web: http://www.ettus.com

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