protected virtual void OnFreeDevice()
{
if (!BassAsioDevice.IsInitialized)
{
return;
}
BassAsioDevice.Free();
}
public override void Connect(IBassStreamComponent previous)
{
if (previous.Channels > BassAsioDevice.Info.Outputs)
{
//TODO: We should down mix.
Logger.Write(this, LogLevel.Error, "Cannot play stream with more channels than device outputs.");
throw new NotImplementedException(string.Format("The stream contains {0} channels which is greater than {1} output channels provided by the device.", previous.Channels, BassAsioDevice.Info.Outputs));
}
if (!this.CheckFormat(this.Rate, previous.Channels))
{
Logger.Write(this, LogLevel.Error, "Cannot play stream with unsupported rate.");
throw new NotImplementedException(string.Format("The stream has a rate of {0} which is not supported by the device.", this.Rate));
}
var exception = default(Exception);
for (var a = 1; a <= CONNECT_ATTEMPTS; a++)
{
Logger.Write(this, LogLevel.Debug, "Configuring ASIO, attempt: {0}", a);
try
{
if (BassAsioUtils.OK(this.ConfigureASIO(previous)))
{
var success = default(bool);
if (previous.Flags.HasFlag(BassFlags.DSDRaw) || BassUtils.GetChannelDsdRaw(previous.ChannelHandle))
{
success = BassAsioUtils.OK(this.ConfigureASIO_DSD(previous));
}
else
{
success = BassAsioUtils.OK(this.ConfigureASIO_PCM(previous));
}
if (success)
{
Logger.Write(this, LogLevel.Debug, "Configured ASIO.");
return;
}
}
}
catch (Exception e)
{
exception = e;
Logger.Write(this, LogLevel.Warn, "Failed to configure ASIO: {0}", e.Message);
if (BassAsioDevice.IsInitialized)
{
Logger.Write(this, LogLevel.Warn, "Re-initializing ASIO, have you just switched from DSD to PCM?");
BassAsioDevice.Free();
BassAsioDevice.Init();
}
}
Thread.Sleep(CONNECT_ATTEMPT_INTERVAL);
}
if (exception != null)
{
throw exception;
}
throw new NotImplementedException();
}
protected override void OnDisposing()
{
if (this.ChannelHandle != 0)
{
Logger.Write(this, LogLevel.Debug, "Freeing BASS stream: {0}", this.ChannelHandle);
BassUtils.OK(Bass.StreamFree(this.ChannelHandle)); //Not checking result code as it contains an error if the application is shutting down.
}
this.Stop();
BassAsioDevice.Free();
base.OnDisposing();
}
protected virtual void OnInitDevice()
{
if (BassAsioDevice.IsInitialized)
{
return;
}
BassAsioDevice.Init(this.AsioDevice);
if (this.Output.EnforceRate && !BassAsioDevice.Info.SupportedRates.Contains(this.Output.Rate))
{
var supportedRates = string.Join(
", ",
BassAsioDevice.Info.SupportedRates
);
Logger.Write(this, LogLevel.Error, "The output rate {0} is not supported by the device, supported rates are: {1}", this.Output.Rate, supportedRates);
BassAsioDevice.Free();
throw new NotImplementedException(string.Format("The output rate {0} is not supported by the device, supported rates are: {1}", this.Output.Rate, supportedRates));
}
}
protected virtual void OnInit(object sender, EventArgs e)
{
if (!this.Enabled)
{
return;
}
this.IsInitialized = true;
BassAsioUtils.OK(Bass.Configure(global::ManagedBass.Configuration.UpdateThreads, 0));
BassAsioUtils.OK(Bass.Configure(global::ManagedBass.Configuration.PlaybackBufferLength, this.Output.BufferLength));
BassAsioUtils.OK(Bass.Configure(global::ManagedBass.Configuration.SRCQuality, this.Output.ResamplingQuality));
BassAsioUtils.OK(Bass.Init(Bass.NoSoundDevice));
//Always detect device for now.
//if (BassAsioDevice.Info != null && BassAsioDevice.Info.Device != this.AsioDevice)
{
BassAsioDevice.Detect(this.AsioDevice);
}
Logger.Write(this, LogLevel.Debug, "BASS (No Sound) Initialized.");
}
protected virtual void ConfigureASIO(IBassStreamComponent previous)
{
if (previous.Flags.HasFlag(BassFlags.DSDRaw))
{
this.Rate = previous.Rate;
this.Flags |= BassFlags.DSDRaw;
}
else
{
if (this.Behaviour.Output.EnforceRate)
{
if (!BassAsioDevice.Info.SupportedRates.Contains(this.Rate))
{
var nearestRate = BassAsioDevice.Info.GetNearestRate(this.Rate);
Logger.Write(this, LogLevel.Warn, "Enforced rate {0} isn't supposed by the device, falling back to {1}.", this.Rate, nearestRate);
this.Rate = nearestRate;
}
else
{
//Enfoced rate is supported by the device, nothing to do.
}
}
else
{
if (!BassAsioDevice.Info.SupportedRates.Contains(previous.Rate))
{
var nearestRate = BassAsioDevice.Info.GetNearestRate(previous.Rate);
Logger.Write(this, LogLevel.Debug, "Stream rate {0} isn't supposed by the device, falling back to {1}.", this.Rate, nearestRate);
this.Rate = nearestRate;
}
else
{
//Stream rate is supported by the device, nothing to do.
this.Rate = previous.Rate;
}
}
}
BassAsioDevice.Init(
this.Behaviour.AsioDevice,
this.Rate,
this.Channels,
this.Flags
);
}
