Apple

On Apr 9, 2014, at 2:00 PM, email@hidden wrote:

Perhaps this helps: http://joris.kluivers.nl/blog/2012/07/25/per-application-airplay-in-mountain-lion/
Demo app at: https://bitbucket.org/kluivers/airplaystreaming

I have this working in my app.

First get the available data sources for the audio device:

int getDataSourceIDs(bool input, Array <OSType>& dataSourceIDs)
{
if (deviceID != 0)
{
AudioObjectPropertyAddress pa;
pa.mSelector = kAudioDevicePropertyDataSources;
pa.mScope = ((input == true) ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput);
pa.mElement = kAudioObjectPropertyElementMaster;
UInt32 size = 0;

if ( OK(AudioObjectGetPropertyDataSize (deviceID, &pa, 0, 0, &size)))
{
HeapBlock<OSType> sources;
sources.calloc (size, 1);

if ( OK(AudioObjectGetPropertyData (deviceID, &pa, 0, 0, &size, sources)))
{
int num = size / (int) sizeof (OSType);

for(int i=0; i < num; i++)
dataSourceIDs.add(sources[i]);

return num;
}
}
}

return 0;
}