/// <summary>
/// Plays the provided audio source to the A-Leg.
/// Dispose the returned token to cancel playback.
/// </summary>
/// <param name="file">The audio source.</param>
/// <returns>An <seealso cref="IDisposable"/> which can be disposed to stop the audio.</returns>
public async Task <IDisposable> PlayUntilCancelled(string file)
{
if (!CanPlayBackAudio)
{
Log.Warn(() => "Channel [{0}] attempted to play hold music when not answered".Fmt(UUID));
return(Task.FromResult(new DisposableAction()));
}
// essentially, we'll do a playback application call without waiting for the ChannelExecuteComplete event
// the caller can .Dispose() the returned token to do a uuid_break on the channel to kill audio.
await eventSocket.SendCommand(string.Format("sendmsg {0}\ncall-command: execute\nexecute-app-name: playback\nexecute-app-arg:{1}\nloops:-1", UUID, file));
var cancellation = new DisposableAction(
async() =>
{
if (!CanPlayBackAudio)
{
return;
}
try
{
await eventSocket.Api("uuid_break", UUID);
}
catch (Exception ex)
{
Log.ErrorException("Error calling 'api uuid_break {0}'".Fmt(UUID), ex);
}
});
return(cancellation);
}
