protected virtual bool ConfigureASIO_PCM(IBassStreamComponent previous)
{
Logger.Write(this, LogLevel.Debug, "Configuring PCM.");
BassAsioUtils.OK(BassAsio.SetDSD(false));
if (!this.CheckFormat(this.Rate, this.Channels))
{
Logger.Write(this, LogLevel.Warn, "PCM format {0}:{1} is unsupported.", this.Rate, this.Channels);
return(false);
}
else
{
BassAsio.Rate = this.Rate;
}
var format = default(AsioSampleFormat);
if (previous.Flags.HasFlag(BassFlags.Float))
{
format = AsioSampleFormat.Float;
}
else
{
format = AsioSampleFormat.Bit16;
}
Logger.Write(this, LogLevel.Debug, "PCM: Rate = {0}, Format = {1}", BassAsio.Rate, Enum.GetName(typeof(AsioSampleFormat), format));
BassAsioUtils.OK(BassAsio.ChannelSetRate(false, BassAsioDevice.PRIMARY_CHANNEL, previous.Rate));
BassAsioUtils.OK(BassAsio.ChannelSetFormat(false, BassAsioDevice.PRIMARY_CHANNEL, format));
return(true);
}
protected virtual bool ConfigureASIO_DSD(IBassStreamComponent previous)
{
try
{
Logger.Write(this, LogLevel.Debug, "Configuring DSD RAW.");
try
{
BassAsioUtils.OK(BassAsio.SetDSD(true));
}
catch
{
//If we get here some drivers (at least Creative) will crash when BassAsio.Start is called.
//I can't find a way to prevent it but it seems to be related to the allocated buffer size
//not being what the driver *thinks* it is and over-flowing.
//
//It should be unlikely in real life as the device would have to report capability of some
//very high PCM frequencies.
Logger.Write(this, LogLevel.Error, "Failed to enable DSD RAW on the device. Creative ASIO driver becomes unstable and usually crashes soon...");
return(false);
}
if (!this.CheckFormat(this.Rate, previous.Channels))
{
Logger.Write(this, LogLevel.Warn, "DSD format {0}:{1} is unsupported.", previous.Rate, previous.Channels);
return(false);
}
else
{
BassAsio.Rate = this.Rate;
}
//It looks like BASS DSD always outputs 8 bit/MSB data so we don't need to determine the format.
//var format = default(AsioSampleFormat);
//switch (this.Depth)
//{
// case BassAttribute.DSDFormat_LSB:
// format = AsioSampleFormat.DSD_LSB;
// break;
// case BassAttribute.DSDFormat_None:
// case BassAttribute.DSDFormat_MSB:
// format = AsioSampleFormat.DSD_MSB;
// break;
// default:
// throw new NotImplementedException();
//}
Logger.Write(this, LogLevel.Debug, "DSD: Rate = {0}, Format = {1}", BassAsio.Rate, Enum.GetName(typeof(AsioSampleFormat), AsioSampleFormat.DSD_MSB));
BassAsioUtils.OK(BassAsio.ChannelSetFormat(false, BassAsioDevice.PRIMARY_CHANNEL, AsioSampleFormat.DSD_MSB));
return(true);
}
catch (Exception e)
{
Logger.Write(this, LogLevel.Warn, "Failed to configure DSD RAW: {0}", e.Message);
return(false);
}
}
private static void InitPCM(int device, int rate, int channels, BassFlags flags)
{
BassAsioUtils.OK(BassAsio.SetDSD(false));
BassAsioUtils.OK(BassAsio.ChannelSetRate(false, BassAsioDevice.PRIMARY_CHANNEL, rate));
var format = default(AsioSampleFormat);
if (flags.HasFlag(BassFlags.Float))
{
format = AsioSampleFormat.Float;
}
else
{
format = AsioSampleFormat.Bit16;
}
BassAsioUtils.OK(BassAsio.ChannelSetFormat(false, BassAsioDevice.PRIMARY_CHANNEL, format));
}
private static void InitDSD(int device, int rate, int channels, BassFlags flags)
{
BassAsioUtils.OK(BassAsio.SetDSD(true));
//It looks like BASS DSD always outputs 8 bit/MSB data so we don't need to determine the format.
//var format = default(AsioSampleFormat);
//switch (this.Depth)
//{
// case BassAttribute.DSDFormat_LSB:
// format = AsioSampleFormat.DSD_LSB;
// break;
// case BassAttribute.DSDFormat_None:
// case BassAttribute.DSDFormat_MSB:
// format = AsioSampleFormat.DSD_MSB;
// break;
// default:
// throw new NotImplementedException();
//}
BassAsioUtils.OK(BassAsio.ChannelSetFormat(false, BassAsioDevice.PRIMARY_CHANNEL, AsioSampleFormat.DSD_MSB));
}
