void SetPlayerFile(NSUrl fileUrl)
{
NSError error;
file = new AVAudioFile(fileUrl, out error);
if (error != null)
{
throw new NSErrorException(error);
}
engine.Connect(player, engine.MainMixerNode, file.ProcessingFormat);
}
///<Summary>
/// Load wave or mp3 audio file from the Android assets folder
///</Summary>
public bool Load(string fileName)
{
DeletePlayer();
NSError error = new NSError();
if (!String.IsNullOrWhiteSpace(fileName))
{
string directory = Path.GetDirectoryName(fileName);
string filename = Path.GetFileNameWithoutExtension(fileName);
string extension = Path.GetExtension(fileName).Substring(1);
NSUrl url = NSBundle.MainBundle.GetUrlForResource(filename, extension, directory);
audioFile = new AVAudioFile(url, out error);
}
if (audioFile != null)
{
componentDescription = new AudioComponentDescription();
componentDescription.ComponentType = AudioComponentType.FormatConverter;
componentDescription.ComponentSubType = (int)AudioUnitSubType.Varispeed;
engine = new AVAudioEngine();
player = new AVAudioPlayerNode();
pitch = new AVAudioUnitTimePitch(componentDescription);
engine.AttachNode(player);
engine.AttachNode(pitch);
engine.Connect(player, pitch, audioFile.ProcessingFormat);
engine.Connect(pitch, engine.MainMixerNode, audioFile.ProcessingFormat);
engine.Prepare();
NSError startError = new NSError();
engine.StartAndReturnError(out startError);
}
return(true);
}
void SetPlayerFile (NSUrl fileUrl)
{
NSError error;
file = new AVAudioFile (fileUrl, out error);
if (error != null)
throw new NSErrorException (error);
engine.Connect (player, engine.MainMixerNode, file.ProcessingFormat);
}
