public PortAudioOutputDevice(IOutputController controller, bool isDefault, PortAudioDevice device)
{
Name = device.Name;
Controller = controller;
IsDefault = isDefault;
_dev = device;
}
public PortAudioPlaybackHandle(AudioStream baseStream, PortAudioDevice dev)
{
BaseStream = new BufferedAudioStream(baseStream, baseStream.Format.SampleRate * baseStream.Format.BytesPerFrame);
PortAudioSampleFormat.PortAudioNumberFormat numberFormat;
switch (baseStream.Format.DataFormat.NumberFormat)
{
case NumberFormat.FloatingPoint:
numberFormat = PortAudioSampleFormat.PortAudioNumberFormat.FloatingPoint;
break;
case NumberFormat.Signed:
numberFormat = PortAudioSampleFormat.PortAudioNumberFormat.Signed;
break;
case NumberFormat.Unsigned:
numberFormat = PortAudioSampleFormat.PortAudioNumberFormat.Unsigned;
break;
default: throw new ArgumentException();
}
_pump = new PortAudioDevicePump(dev, baseStream.Format.Channels,
new PortAudioSampleFormat(numberFormat, baseStream.Format.DataFormat.BytesPerSample),
dev.DefaultHighOutputLatency, baseStream.Format.SampleRate, DataCallback);
_pump.StreamFinished += PumpOnStreamFinished;
}
/// <summary>
/// Starts the media capturing/source devices.
/// </summary>
public override async Task Start()
{
if (!_isStarted)
{
await base.Start();
var apiType = PortAudioHostApiType.DirectSound;
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
apiType = PortAudioHostApiType.Alsa;
}
_portAudioOutputDevice = PortAudioHostApi.SupportedHostApis.Where(x => x.HostApiType == apiType).First().DefaultOutputDevice;
_outputDevicePump = new PortAudioDevicePump(_portAudioOutputDevice, AUDIO_CHANNEL_COUNT,
new PortAudioSampleFormat(PortAudioSampleFormat.PortAudioNumberFormat.Signed, AUDIO_BYTES_PER_SAMPLE),
TimeSpan.FromMilliseconds(SAMPLING_PERIOD_MILLISECONDS), AUDIO_SAMPLING_RATE, ReadAudioDataCalback);
_portAudioInputDevice = PortAudioHostApi.SupportedHostApis.Where(x => x.HostApiType == apiType).First().DefaultInputDevice;
_inputDevicePump = new PortAudioDevicePump(_portAudioInputDevice, AUDIO_CHANNEL_COUNT,
new PortAudioSampleFormat(PortAudioSampleFormat.PortAudioNumberFormat.Signed, AUDIO_BYTES_PER_SAMPLE),
TimeSpan.FromMilliseconds(SAMPLING_PERIOD_MILLISECONDS), AUDIO_SAMPLING_RATE, WriteDataCallback);
_outputDevicePump.Start();
_inputDevicePump.Start();
}
}
public IEnumerable <IOutputDevice> GetOutputDevices()
{
PortAudioDevice def = default;
try
{
def = _api.DefaultOutputDevice;
}
catch (PortAudioException)
{
//_debug.WriteLine($"Default output device for audio API \"{ApiName}\" does not exist.", DebugMessageLevel.Warning);
}
foreach (var device in _outputDevices)
{
yield return(new PortAudioOutputDevice(this, ReferenceEquals(def, device), device));
}
}
#pragma warning restore CS0067
/// <summary>
/// Creates a new basic RTP session that captures and renders audio to/from the default system devices.
/// </summary>
public PortAudioEndPoint(IAudioEncoder audioEncoder)
{
_audioEncoder = audioEncoder;
_audioFormatManager = new MediaFormatManager <AudioFormat>(_audioEncoder.SupportedFormats);
var apiType = PortAudioHostApiType.DirectSound;
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
apiType = PortAudioHostApiType.Alsa;
}
_portAudioOutputDevice = PortAudioHostApi.SupportedHostApis.Where(x => x.HostApiType == apiType).First().DefaultOutputDevice;
_outputDevicePump = new PortAudioDevicePump(_portAudioOutputDevice, AUDIO_CHANNEL_COUNT,
new PortAudioSampleFormat(PortAudioSampleFormat.PortAudioNumberFormat.Signed, AUDIO_BYTES_PER_SAMPLE),
TimeSpan.FromMilliseconds(SAMPLING_PERIOD_MILLISECONDS), AUDIO_SAMPLING_RATE, ReadAudioDataCalback);
_portAudioInputDevice = PortAudioHostApi.SupportedHostApis.Where(x => x.HostApiType == apiType).First().DefaultInputDevice;
_inputDevicePump = new PortAudioDevicePump(_portAudioInputDevice, AUDIO_CHANNEL_COUNT,
new PortAudioSampleFormat(PortAudioSampleFormat.PortAudioNumberFormat.Signed, AUDIO_BYTES_PER_SAMPLE),
TimeSpan.FromMilliseconds(SAMPLING_PERIOD_MILLISECONDS), AUDIO_SAMPLING_RATE, WriteDataCallback);
}
public PortAudioDeviceViewModel(PortAudioDevice model)
{
_model = model;
}