This example demonstrates manually controlling iOS's audio session, instead of letting the R5AudioController handle it. This allows you to play sounds without being interrupted by the Red5Pro SDK opening and closing the session around the stream.
In order to signal to the R5AudioController that it shouldn't handle the AVAudioSession all you need to do is set the inheritAVSessionOptions of the R5Configuration to false. This way, it won't use the Red5Pro default audio options, and will instead trust that the session is already open.
let config = getConfig()
config.inheritAVSessionOptions = false