CODEWITHSUNDEEP
macoscocoaavfoundationavaudioplayer
Jimmy
Jimmy

Reputation: 1433

Change the output device for AVAudioPlayer on OSX

I need to play audio from AVAudioPlayer to a particular audio device such as a USB headset. By default the audio will get played out to the system default device setting. With QTKit, I was able to use SetMovieAudioContext() to do such a task but do not see equivalent in AVFoundation. How is it possible to change this on OSX?

Upvotes: 0

Views: 1068

Answers (2)

Daniyar
Daniyar

Reputation: 3003

Use NSSound instead:

Get list of audio devices with CoreAudio functions. Then get the devices' unique identifiers:

//...
address.mSelector = kAudioDevicePropertyDeviceUID;
CFStringRef uid = NULL;
UInt32 size = sizeof(uid);
AudioObjectGetPropertyData(deviceId, &address, 0, NULL, &size, &uid);
//...

Initialize sound item, set playbackDeviceIdentifier property value.

Upvotes: 2

Jimmy
Jimmy

Reputation: 1433

Opened a DTS case with Apple and they said it was not possible (as i need to support 10.8). If you only need to support 10.9 and above AVPlayerAudioDeviceSupport should work.

Upvotes: 1

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