private void UpdateChannels()
{
if (this.FDeviceIndex != -1 || this.FPinInVolumeOutput.SliceCount > 0)
{
BASS_ASIO_INFO deviceinfo = BassAsio.BASS_ASIO_GetInfo();
int current = 0;
for (int i = 0; i < deviceinfo.outputs; i++)
{
double active;
this.FPinInActive.GetValue(current, out active);
if (active == 1)
{
BassAsio.BASS_ASIO_ChannelReset(false, i, BASSASIOReset.BASS_ASIO_RESET_PAUSE);
}
else
{
BassAsio.BASS_ASIO_ChannelPause(false, i);
}
//Bin for the channels
current++;
if (current == this.FPinInActive.SliceCount)
{
current = 0;
}
}
}
}
private void buttonPlay_Click(object sender, System.EventArgs e)
{
BassAsio.BASS_ASIO_Stop();
BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN);
Bass.BASS_StreamFree(_streamFX);
if (_fileName != String.Empty)
{
// create the decoding stream
_stream = Bass.BASS_StreamCreateFile(_fileName, 0, 0, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_SAMPLE_FLOAT);
if (_stream != 0)
{
// now we create a Tempo channel (again a decoding one)...the actual playing channel
_streamFX = BassFx.BASS_FX_TempoCreate(_stream, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_FX_FREESOURCE | BASSFlag.BASS_SAMPLE_FLOAT);
if (_streamFX == 0)
{
MessageBox.Show(this, "Can't create FX stream!", Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return;
}
// now setup ASIO
myAsioProc = new ASIOPROC(AsioCallback);
// get the stream channel info
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(_streamFX, info);
_originSampleRate = (float)info.freq;
this.button2.Text = _originSampleRate.ToString("0");
// enable 1st output channel...(0=first)
BassAsio.BASS_ASIO_ChannelEnable(false, 0, myAsioProc, new IntPtr(_streamFX));
// and join the next channels to it
for (int a = 1; a < info.chans; a++)
{
BassAsio.BASS_ASIO_ChannelJoin(false, a, 0);
}
// since we joined the channels, the next commands will applay 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)
BassAsio.BASS_ASIO_ChannelSetFormat(false, 0, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT);
// set the source rate
BassAsio.BASS_ASIO_ChannelSetRate(false, 0, (double)info.freq);
// try to set the device rate too (saves resampling)
BassAsio.BASS_ASIO_SetRate((double)info.freq);
// and start playing it...
// start output using default buffer/latency
if (!BassAsio.BASS_ASIO_Start(0))
{
MessageBox.Show(this, "Can't start ASIO output", Enum.GetName(typeof(BASSError), BassAsio.BASS_ASIO_ErrorGetCode()));
}
else
{
this.labelStatus.Text = "playing";
this.timerUpdate.Start();
}
}
}
}
private void buttonPause_Click(object sender, System.EventArgs e)
{
if (BassAsio.BASS_ASIO_ChannelIsActive(false, 0) == BASSASIOActive.BASS_ASIO_ACTIVE_PAUSED)
{
// channel is paused...so unpause
BassAsio.BASS_ASIO_ChannelReset(false, 0, BASSASIOReset.BASS_ASIO_RESET_PAUSE);
this.labelStatus.Text = "playing";
}
else
{
// channel is playing...so pause
BassAsio.BASS_ASIO_ChannelPause(false, 0);
this.labelStatus.Text = "paused";
this.progressBarVULeft.Value = 0;
this.progressBarVURight.Value = 0;
}
}
private bool setupChannel(int Frequency, BASSASIOFormat Format)
{
proc = new ASIOPROC(AsioCallback);
BassAsio.BASS_ASIO_Stop();
if (!BassAsio.BASS_ASIO_ChannelReset(false,
-1,
BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN))
{
return(false);
}
if (!BassAsio.BASS_ASIO_ChannelEnable(false, 0, proc, IntPtr.Zero))
{
return(false);
}
if (!BassAsio.BASS_ASIO_ChannelJoin(false, 1, 0))
{
return(false);
}
if (!BassAsio.BASS_ASIO_ChannelSetFormat(false, 0, Format))
{
return(false);
}
BassAsio.BASS_ASIO_SetRate((double)Frequency);
if (!BassAsio.BASS_ASIO_ChannelSetRate(false, 0, (double)Frequency))
{
return(false);
}
return(BassAsio.BASS_ASIO_Start(0));
}
/// <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 void Dispose()
{
BassAsio.BASS_ASIO_ChannelReset(true, 0, BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN);
}
public void Dispose()
{
BassAsio.BASS_ASIO_Stop();
BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN);
}
public void Evaluate(int SpreadMax)
{
try
{
#region Channel and device
if (this.FPinInChannels.PinIsChanged || this.FPinInDevice.PinIsChanged)
{
double dbldevice;
this.FPinInDevice.GetValue(0, out dbldevice);
this.FDeviceIndex = Convert.ToInt32(dbldevice);
if (this.FDeviceIndex != -1)
{
BassAsio.BASS_ASIO_Init(this.FDeviceIndex);
BassAsio.BASS_ASIO_SetDevice(this.FDeviceIndex);
}
this.FOutputHandled.Clear();
BassAsio.BASS_ASIO_Stop();
BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN);
if (this.FDeviceIndex != -1 && this.FPinInChannels.IsConnected)
{
int asiooutindex = 0;
double dhandle;
for (int i = 0; i < this.FPinInChannels.SliceCount; i++)
{
this.FPinInChannels.GetValue(i, out dhandle);
int handle = Convert.ToInt32(dhandle);
if (handle != 0 && handle != -1)
{
ChannelInfo channel = this.manager.GetChannel(handle);
if (channel.BassHandle == null)
{
//Initialize channel (in nosound)
channel.Initialize(0);
}
//Check if the channel has its own handler
if (!BassAsioUtils.InputChannels.ContainsKey(handle))
{
BASS_CHANNELINFO info = Bass.BASS_ChannelGetInfo(channel.BassHandle.Value);
BassAsio.BASS_ASIO_ChannelEnable(false, asiooutindex, myAsioProc, new IntPtr(handle));
if (info.chans == 1)
{
//No need to join on mono channels
asiooutindex++;
}
else
{
for (int chan = 1; chan < info.chans; chan++)
{
bool join = BassAsio.BASS_ASIO_ChannelJoin(false, asiooutindex + chan, asiooutindex);
if (!join)
{
this.FHost.Log(TLogType.Error, "Error: join failed");
this.FHost.Log(TLogType.Error, BassAsio.BASS_ASIO_ErrorGetCode().ToString());
}
}
BassAsio.BASS_ASIO_ChannelSetFormat(false, asiooutindex, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT);
BassAsio.BASS_ASIO_ChannelSetRate(false, asiooutindex, (double)info.freq);
BassAsio.BASS_ASIO_SetRate((double)info.freq);
asiooutindex += info.chans;
}
}
else
{
BassAsioHandler handler = BassAsioUtils.InputChannels[handle].Handler;
handler.SetMirror(asiooutindex);
asiooutindex += 2;
this.FOutputHandled.Add(asiooutindex);
this.FOutputHandled.Add(asiooutindex + 1);
}
}
}
bool start = BassAsio.BASS_ASIO_Start(0);
if (!start)
{
this.FPinErrorCode.SetString(0, BassAsio.BASS_ASIO_ErrorGetCode().ToString());
this.FHost.Log(TLogType.Error, "Error: Start failed");
this.FHost.Log(TLogType.Error, BassAsio.BASS_ASIO_ErrorGetCode().ToString());
}
else
{
this.FPinErrorCode.SetString(0, "OK");
}
UpdateChannels();
}
}
if (FControlPanel.PinIsChanged)
{
double v;
FControlPanel.GetValue(0, out v);
if (v > 0.5)
{
BassAsio.BASS_ASIO_ControlPanel();
}
}
#endregion
#region Volume
if (this.FPinInVolumeOutput.PinIsChanged)
{
if (this.FDeviceIndex != -1 || this.FPinInVolumeOutput.SliceCount > 0)
{
BASS_ASIO_INFO deviceinfo = BassAsio.BASS_ASIO_GetInfo();
int current = 0;
for (int i = 0; i < deviceinfo.outputs; i++)
{
double vol;
this.FPinInVolumeOutput.GetValue(current, out vol);
BassAsio.BASS_ASIO_ChannelSetVolume(false, i, (float)vol);
//Bin for the channels
current++;
if (current == this.FPinInVolumeOutput.SliceCount)
{
current = 0;
}
}
}
}
#endregion
#region Is Active Pin
if (this.FPinInActive.PinIsChanged)
{
UpdateChannels();
}
#endregion
}
catch (Exception ex)
{
this.FHost.Log(TLogType.Error, ex.Message);
this.FHost.Log(TLogType.Error, ex.StackTrace);
}
}
public override void Resume()
{
BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_PAUSE);
}
