/// <summary>
/// Retrieves information on a device and adds it to the static deviceinfo dictionary do it can be reused later.
/// </summary>
/// <param name="deviceNo">Device number to retrieve information on.</param>
protected void CollectDeviceInfo(int deviceNo)
{
// Device info is saved in a dictionary so it can be reused lateron.
if (!_deviceInfos.ContainsKey(deviceNo))
{
Log.Debug("Collecting device info");
BASS_WASAPI_DEVICEINFO bassDeviceInfo = BassWasapi.BASS_WASAPI_GetDeviceInfo(deviceNo);
if (bassDeviceInfo == null)
{
throw new BassLibraryException("BASS_WASAPI_GetDeviceInfo");
}
BASS_WASAPI_INFO bassInfo = BassWasapi.BASS_WASAPI_GetInfo();
if (bassInfo == null)
{
throw new BassLibraryException("BASS_WASAPI_GetInfo");
}
DeviceInfo deviceInfo = new DeviceInfo
{
Name = bassDeviceInfo.name,
Driver = "WASAPI",
Channels = bassInfo.chans,
MinRate = bassInfo.freq,
MaxRate = bassInfo.freq,
};
GetDeviceFormats(deviceNo, deviceInfo);
lock (_deviceInfos)
_deviceInfos.Add(deviceNo, deviceInfo);
}
Log.Debug("WASAPI device info: {0}", _deviceInfos[_deviceNo].ToString());
}
/// <summary>
/// Create a mixer using the stream attributes
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public bool CreateMixer(MusicStream stream)
{
Log.Debug("BASS: ---------------------------------------------");
Log.Debug("BASS: Creating BASS mixer stream");
bool result = false;
BASSFlag mixerFlags = BASSFlag.BASS_MIXER_NONSTOP | BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_MIXER_NORAMPIN;
if (Config.MusicPlayer == AudioPlayer.Asio || Config.MusicPlayer == AudioPlayer.WasApi)
{
mixerFlags |= BASSFlag.BASS_STREAM_DECODE;
}
int outputChannels = _bassPlayer.DeviceChannels;
_mixingMatrix = null;
// See, if we need Upmixing
if (outputChannels > stream.ChannelInfo.chans)
{
Log.Debug("BASS: Found more output channels ({0}) than input channels ({1}). Check for upmixing.", outputChannels,
stream.ChannelInfo.chans);
_mixingMatrix = CreateMixingMatrix(stream.ChannelInfo.chans);
if (_mixingMatrix != null)
{
outputChannels = Math.Min(_mixingMatrix.GetLength(0), outputChannels);
_upmixing = true;
}
else
{
outputChannels = stream.ChannelInfo.chans;
}
}
else if (outputChannels < stream.ChannelInfo.chans)
{
// Downmix to Stereo
Log.Debug("BASS: Found more input channels ({0}) than output channels ({1}). Downmix.", stream.ChannelInfo.chans,
outputChannels);
outputChannels = Math.Min(outputChannels, 2);
}
Log.Debug("BASS: Creating {0} channel mixer with sample rate of {1}", outputChannels, stream.ChannelInfo.freq);
_mixer = BassMix.BASS_Mixer_StreamCreate(stream.ChannelInfo.freq, outputChannels, mixerFlags);
if (_mixer == 0)
{
Log.Error("BASS: Unable to create Mixer. Reason: {0}.",
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
switch (Config.MusicPlayer)
{
case AudioPlayer.Bass:
case AudioPlayer.DShow:
if (!Bass.BASS_ChannelPlay(_mixer, false))
{
Log.Error("BASS: Unable to start Mixer. Reason: {0}.", Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
result = true;
break;
case AudioPlayer.Asio:
Log.Info("BASS: Initialising ASIO device");
if (BassAsio.BASS_ASIO_IsStarted() && !BassAsio.BASS_ASIO_Stop())
{
Log.Error("BASS: Error stopping Asio Device: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// Disable and Unjoin all the channels
if (!BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_ENABLE))
{
Log.Error("BASS: Error disabling Asio Channels: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
if (!BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_JOIN))
{
Log.Error("BASS: Error unjoining Asio Channels: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
_asioProc = new ASIOPROC(AsioCallback);
BassAsio.BASS_ASIO_ChannelSetVolume(false, -1, (float)Config.StreamVolume / 100f);
// enable 1st output channel...(0=first)
Log.Debug("BASS: Joining Asio Channel #{0}", "0");
BassAsio.BASS_ASIO_ChannelEnable(false, 0, _asioProc, new IntPtr(_mixer));
// and join the next channels to it
int numChannels = Math.Max(stream.ChannelInfo.chans, outputChannels);
for (int i = 1; i < numChannels; i++)
{
Log.Debug("BASS: Joining Asio Channel #{0}", i);
BassAsio.BASS_ASIO_ChannelJoin(false, i, 0);
}
// since we joined the channels, the next commands will apply to all channles joined
// so setting the values to the first channels changes them all automatically
// set the source format (float, as the decoding channel is)
if (!BassAsio.BASS_ASIO_ChannelSetFormat(false, 0, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT))
{
Log.Error("BASS: Error setting Asio Sample Format: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// set the source rate
Log.Debug("BASS: Set sample rate to {0}", stream.ChannelInfo.freq);
if (!BassAsio.BASS_ASIO_ChannelSetRate(false, 0, (double)stream.ChannelInfo.freq))
{
Log.Error("BASS: Error setting Asio Channel Samplerate: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// try to set the device rate too (saves resampling)
if (!BassAsio.BASS_ASIO_SetRate((double)stream.ChannelInfo.freq))
{
Log.Error("BASS: Error setting Asio Samplerate: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// and start playing it...start output using default buffer/latency
if (!BassAsio.BASS_ASIO_Start(0))
{
Log.Error("BASS: Error starting Asio playback: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
Log.Info("BASS: Finished initialising ASIO device");
result = true;
break;
case AudioPlayer.WasApi:
Log.Info("BASS: Initialising WASAPI device");
try
{
BassWasapi.BASS_WASAPI_Free();
Log.Debug("BASS: Freed WASAPI device");
}
catch (Exception ex)
{
Log.Error("BASS: Exception freeing WASAPI. {0} {1}", ex.Message, ex.StackTrace);
}
BASSWASAPIInit initFlags = BASSWASAPIInit.BASS_WASAPI_AUTOFORMAT;
_wasapiProc = new WASAPIPROC(WasApiCallback);
bool wasApiExclusiveSupported = true;
// Check if we have an uneven number of channels
var chkChannels = outputChannels % 2;
if (chkChannels == 1)
{
Log.Warn("BASS: Found uneven number of channels {0}. increase output channels.", outputChannels);
outputChannels++; // increase the number of output channels
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
// Handle the special cases of 3.0, 4.0 and 5.0 files being played on a 5.1 or 6.1 device
if (outputChannels == 3) // a 3.0 file
{
Log.Info("BASS: Found a 3 channel file. Set upmixing with LFE, LR, RR set to silent");
_mixingMatrix = CreateThreeDotZeroUpMixMatrix();
outputChannels = _bassPlayer.DeviceChannels; // WASAPI device should be initialised with all channels active
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
else if (outputChannels == 4) // a 4.0 file
{
Log.Info("BASS: Found a 4 channel file. Set upmixing with Center and LFE set to silent");
_mixingMatrix = CreateFourDotZeroUpMixMatrix();
outputChannels = _bassPlayer.DeviceChannels; // WASAPI device should be initialised with all channels active
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
else if (outputChannels == 5) // a 5.0 file
{
Log.Info("BASS: Found a 5 channel file. Set upmixing with LFE set to silent");
_mixingMatrix = CreateFiveDotZeroUpMixMatrix();
outputChannels = _bassPlayer.DeviceChannels; // WASAPI device should be initialised with all channels active
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
// If Exclusive mode is used, check, if that would be supported, otherwise init in shared mode
if (Config.WasApiExclusiveMode)
{
initFlags |= BASSWASAPIInit.BASS_WASAPI_EXCLUSIVE;
_wasapiShared = false;
_wasapiMixedChans = 0;
_wasapiMixedFreq = 0;
BASSWASAPIFormat wasapiFormat = BassWasapi.BASS_WASAPI_CheckFormat(_bassPlayer.DeviceNumber,
stream.ChannelInfo.freq,
outputChannels,
BASSWASAPIInit.BASS_WASAPI_EXCLUSIVE);
if (wasapiFormat == BASSWASAPIFormat.BASS_WASAPI_FORMAT_UNKNOWN)
{
Log.Warn("BASS: WASAPI exclusive mode not directly supported. Let BASS WASAPI choose better mode.");
wasApiExclusiveSupported = false;
}
}
else
{
Log.Debug("BASS: Init WASAPI shared mode with Event driven system enabled.");
initFlags |= BASSWASAPIInit.BASS_WASAPI_SHARED | BASSWASAPIInit.BASS_WASAPI_EVENT;
// In case of WASAPI Shared mode we need to setup the mixer to use the same sample rate as set in
// the Windows Mixer, otherwise we wioll have increased playback speed
BASS_WASAPI_DEVICEINFO devInfo = BassWasapi.BASS_WASAPI_GetDeviceInfo(_bassPlayer.DeviceNumber);
Log.Debug("BASS: Creating {0} channel mixer for frequency {1}", devInfo.mixchans, devInfo.mixfreq);
_mixer = BassMix.BASS_Mixer_StreamCreate(devInfo.mixfreq, devInfo.mixchans, mixerFlags);
if (_mixer == 0)
{
Log.Error("BASS: Unable to create Mixer. Reason: {0}.",
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
_wasapiShared = true;
}
Log.Debug("BASS: Try to init WASAPI with a Frequency of {0} and {1} channels", stream.ChannelInfo.freq, outputChannels);
if (BassWasapi.BASS_WASAPI_Init(_bassPlayer.DeviceNumber, stream.ChannelInfo.freq, outputChannels,
initFlags | BASSWASAPIInit.BASS_WASAPI_BUFFER, Convert.ToSingle(Config.BufferingMs / 1000.0), 0f, _wasapiProc, IntPtr.Zero))
{
BASS_WASAPI_INFO wasapiInfo = BassWasapi.BASS_WASAPI_GetInfo();
Log.Debug("BASS: ---------------------------------------------");
Log.Debug("BASS: Buffer Length: {0}", wasapiInfo.buflen);
Log.Debug("BASS: Channels: {0}", wasapiInfo.chans);
Log.Debug("BASS: Frequency: {0}", wasapiInfo.freq);
Log.Debug("BASS: Format: {0}", wasapiInfo.format.ToString());
Log.Debug("BASS: InitFlags: {0}", wasapiInfo.initflags.ToString());
Log.Debug("BASS: Exclusive: {0}", wasapiInfo.IsExclusive.ToString());
Log.Debug("BASS: ---------------------------------------------");
Log.Info("BASS: WASAPI Device successfully initialised");
// Now we need to check, if WASAPI decided to switch to a different mode
if (Config.WasApiExclusiveMode && !wasApiExclusiveSupported)
{
// Recreate Mixer with new value
Log.Debug("BASS: Creating new {0} channel mixer for frequency {1}", wasapiInfo.chans, wasapiInfo.freq);
_mixer = BassMix.BASS_Mixer_StreamCreate(wasapiInfo.freq, wasapiInfo.chans, mixerFlags);
if (_mixer == 0)
{
Log.Error("BASS: Unable to create Mixer. Reason: {0}.",
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
}
BassWasapi.BASS_WASAPI_SetVolume(BASSWASAPIVolume.BASS_WASAPI_CURVE_DB, (float)Config.StreamVolume / 100f);
BassWasapi.BASS_WASAPI_Start();
result = true;
}
else
{
Log.Error("BASS: Couldn't init WASAPI device. Error: {0}", Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
}
break;
}
if (result)
{
Log.Debug("BASS: Successfully created BASS Mixer stream");
}
return(result);
}
public static extern bool BASS_WASAPI_GetInfo(BASS_WASAPI_INFO info);
public override void SetInputStream(BassStream stream, bool passThrough)
{
if (_deviceState != DeviceState.Stopped)
{
throw new BassPlayerException("Device state is not 'DeviceState.Stopped'");
}
_inputStream = stream;
_flags = BASSWASAPIInit.BASS_WASAPI_AUTOFORMAT | BASSWASAPIInit.BASS_WASAPI_BUFFER;
// If Exclusive mode is used, check, if that would be supported, otherwise init in shared mode
bool isExclusive = Controller.GetSettings().WASAPIExclusiveMode;
if (isExclusive)
{
_flags |= BASSWASAPIInit.BASS_WASAPI_EXCLUSIVE;
BASSWASAPIFormat wasapiFormat = BassWasapi.BASS_WASAPI_CheckFormat(_deviceNo,
_inputStream.SampleRate,
_inputStream.Channels,
BASSWASAPIInit.BASS_WASAPI_EXCLUSIVE);
if (wasapiFormat == BASSWASAPIFormat.BASS_WASAPI_FORMAT_UNKNOWN)
{
Log.Info("BASS: WASAPI exclusive mode not directly supported for samplerate of {0} and {1} channels", _inputStream.SampleRate, _inputStream.Channels);
isExclusive = false;
}
}
retry:
if (!isExclusive)
{
Log.Debug("BASS: Init WASAPI shared mode with Event driven system enabled.");
_flags &= ~BASSWASAPIInit.BASS_WASAPI_EXCLUSIVE;
_flags |= BASSWASAPIInit.BASS_WASAPI_SHARED | BASSWASAPIInit.BASS_WASAPI_EVENT;
}
Log.Debug("BASS: Try to init WASAPI with a samplerate of {0} and {1} channels", _inputStream.SampleRate, _inputStream.Channels);
bool result = BassWasapi.BASS_WASAPI_Init(_deviceNo, _inputStream.SampleRate, _inputStream.Channels, _flags, 0.5f, 0f, _streamWriteProcDelegate, IntPtr.Zero);
BASSError?bassInitErrorCode = result ? null : new BASSError?(Bass.BASS_ErrorGetCode());
if (bassInitErrorCode.HasValue)
{
if (bassInitErrorCode.Value == BASSError.BASS_ERROR_ALREADY)
{
if (!BassWasapi.BASS_WASAPI_SetDevice(_deviceNo))
{
throw new BassLibraryException("BASS_WASAPI_SetDevice");
}
}
else if (isExclusive)
{
// Allow one retry in shared mode
Log.Warn("BASS: Failed to initialize WASAPI exclusive mode for samplerate of {0} and {1} channels. Trying fallback to shared mode.", _inputStream.SampleRate, _inputStream.Channels);
isExclusive = false;
goto retry;
}
else
{
throw new BassLibraryException("BASS_WASAPI_Init");
}
}
// If the GetDeviceNo() method returned BassConstants.BassDefaultDevice, we must request the actual device number
// of the choosen default device
_deviceNo = BassWasapi.BASS_WASAPI_GetDevice();
CollectDeviceInfo(_deviceNo);
BASS_WASAPI_INFO wasapiInfo = BassWasapi.BASS_WASAPI_GetInfo();
Log.Debug("BASS: ---------------------------------------------");
Log.Debug("BASS: Buffer Length: {0}", wasapiInfo.buflen);
Log.Debug("BASS: Channels: {0}", wasapiInfo.chans);
Log.Debug("BASS: Frequency: {0}", wasapiInfo.freq);
Log.Debug("BASS: Format: {0}", wasapiInfo.format.ToString());
Log.Debug("BASS: InitFlags: {0}", wasapiInfo.initflags.ToString());
Log.Debug("BASS: Exclusive: {0}", wasapiInfo.IsExclusive.ToString());
Log.Debug("BASS: ---------------------------------------------");
Log.Info("BASS: WASAPI Device successfully initialised");
// For shared mode we require a mixer to change the sampling rates of input stream to device output stream.
if (!wasapiInfo.IsExclusive)
{
// Recreate Mixer with new value
Log.Debug("BASS: Creating new {0} channel mixer for frequency {1}", wasapiInfo.chans, wasapiInfo.freq);
_mixerHandle = BassMix.BASS_Mixer_StreamCreate(wasapiInfo.freq, wasapiInfo.chans, MIXER_FLAGS);
if (_mixerHandle == BassConstants.BassInvalidHandle)
{
throw new BassLibraryException("BASS_Mixer_StreamCreate");
}
_mixer = BassStream.Create(_mixerHandle);
AttachStream();
}
int ms = Convert.ToInt32(Controller.GetSettings().DirectSoundBufferSize.TotalMilliseconds);
if (!Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_BUFFER, ms))
{
throw new BassLibraryException("BASS_SetConfig");
}
// Enable update thread while the output device is active
if (!Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, ms / 4))
{
throw new BassLibraryException("BASS_SetConfig");
}
if (passThrough)
{
_fader = new BassStreamFader(_inputStream, Controller.GetSettings().FadeDuration);
}
ResetState();
}
public static void SetDevice(int inputDevice, int outputDevice)
{
thisControl = PlayerControl.MainFormControl;
//Get some info about their selected input device
var inputdeviceinfo = BassWasapi.BASS_WASAPI_GetDeviceInfo(inputDevice);
InputDevice = inputDevice;
InputDeviceInfo = inputdeviceinfo;
//Get some info about their selected ouput device
var outputdeviceinfo = BassWasapi.BASS_WASAPI_GetDeviceInfo(outputDevice);
OutputDevice = outputDevice;
OutputDeviceInfo = outputdeviceinfo;
if (!m_isWasapiInit)
{
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, 0);
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_FLOATDSP, true);
Bass.BASS_Init(0, 44100, BASSInit.BASS_DEVICE_DEFAULT, PlayerControl.MainFormControl.Handle);
Player.Mixer = MixerStreamCreate(outputdeviceinfo.mixfreq);
if (Player.Mixer == 0)
{
var error = Bass.BASS_ErrorGetCode();
MessageBox.Show(error.ToString(), "Could not create mixer!");
Bass.BASS_Free();
return;
}
_outstream = Player.Mixer;
_instream = Bass.BASS_StreamCreatePush(inputdeviceinfo.mixfreq, inputdeviceinfo.mixchans, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE, IntPtr.Zero);
// create a stream to receive the data
// string fn = @"D:\tanie\karaokeNow Resources\LdVocal_01.wav";
// _instream = Bass.BASS_StreamCreateFile(fn, 0L, 0L, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_SAMPLE_LOOP);
//_stream[0] = BassMix.BASS_Split_StreamCreate(_instream, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE, null);//_instream;
//_stream[1] = BassMix.BASS_Split_StreamCreate(_instream, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE, null);// _instream;
//_stream[2] = BassMix.BASS_Split_StreamCreate(_instream, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE, null);//_instream;
//_stream[3] = BassMix.BASS_Split_StreamCreate(_instream, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE, null);//_instream;
// _outstream = BassMix.BASS_Mixer_StreamCreate(outputdeviceinfo.mixfreq, outputdeviceinfo.mixchans, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE);
// Player.Mixer = _outstream;
//Group 1 VST Effects ============================================================
Channel1Fx.SetEffects(_instream);
//Group 2 VST Effects ============================================================
// Channel2Fx.SetEffects(_stream[1]);
//Group 3 VST Effects ============================================================
//Channel3Fx.SetEffects(_stream[2]);
//Group 4 VST Effects ============================================================
//Channel4Fx.SetEffects(_stream[3]);
BassMix.BASS_Mixer_StreamAddChannel(_outstream, _instream, 0);
// BassMix.BASS_Mixer_StreamAddChannel(_outstream, _stream[1], 0);
//BassMix.BASS_Mixer_StreamAddChannel(_outstream, _stream[2], 0);
// BassMix.BASS_Mixer_StreamAddChannel(_outstream, _stream[3], 0);
m_isWasapiInit = true;
}
_wasapiInProc = new WASAPIPROC(InputProc);
GC.KeepAlive(_wasapiInProc);
_wasapiOutProc = new WASAPIPROC(OutputProc);
GC.KeepAlive(_wasapiOutProc);
//Set the input device so subsequent calls are on it
BassWasapi.BASS_WASAPI_SetDevice(InputDevice);
// Initialize BASS WASAPI input
BASS_WASAPI_INFO input = new BASS_WASAPI_INFO();
BassWasapi.BASS_WASAPI_GetInfo(input);
BassWasapi.BASS_WASAPI_Init(inputDevice, inputdeviceinfo.mixfreq, inputdeviceinfo.mixchans,
BASSWASAPIInit.BASS_WASAPI_EVENT | BASSWASAPIInit.BASS_WASAPI_BUFFER | BASSWASAPIInit.BASS_WASAPI_SHARED, input.buflen, 0, _wasapiInProc, IntPtr.Zero);
//Set the output device so subsequent calls are on it
BassWasapi.BASS_WASAPI_SetDevice(OutputDevice);
BASS_WASAPI_INFO output = new BASS_WASAPI_INFO();
BassWasapi.BASS_WASAPI_GetInfo(output);
// Initialize BASS WASAPI output
BassWasapi.BASS_WASAPI_Init(outputDevice, outputdeviceinfo.mixfreq, outputdeviceinfo.mixchans,
BASSWASAPIInit.BASS_WASAPI_EVENT | BASSWASAPIInit.BASS_WASAPI_SHARED, output.buflen, 0, _wasapiOutProc, IntPtr.Zero);
}
