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Device select function, small bug fix.
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Ken SUGII committed Nov 13, 2022
1 parent 5d2839a commit 2741da7
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Showing 4 changed files with 274 additions and 275 deletions.
85 changes: 66 additions & 19 deletions SpeAnaLED/Analyzer.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,22 +18,24 @@ internal class Analyzer
private bool _enable; // enabled status
private bool _initialized; // initialized flag
private readonly WASAPIPROC _process; // callback function to obtain data
private int deviceindex; // used device index
//private int deviceindex; // used device index
public List<byte> _spectrumdata; // spectrum data buffer
public readonly DispatcherTimer _timer1; // timer that refreshes the display
private BASSData _DATAFLAG; // for "interreave" format
public int _devicenumber;
public float _freqMultiplyer;
private readonly bool _UNICODE; // codepage switch
private readonly Button _form2EnumButton; // for subscribe
private readonly ComboBox _form2NumberOfBars; // for subscribe
private readonly RadioButton _form2MonoRadio; // for subscribe
private readonly TextBox _form2FreqMultiplyerTextBox;
public event EventHandler SpectrumChanged; // for fire
public event EventHandler NumberOfChannelChanged; // for fire

public int _channel; // 1: "mix-data"(mono) 2: L+R
public int _channel; // 1: "mix-data"(mono) 2: L+R
private int _lines; // default number of spectrum lines

public Analyzer(ComboBox devicelist, Button enumButton, ComboBox numberofbars, RadioButton monoRadio) // Control data for event subscribe
public Analyzer(ComboBox devicelist, Button enumButton, ComboBox numberofbars, RadioButton monoRadio, TextBox freqMultiplyerTextBox) // Control data for event subscribe
{
_form2MonoRadio = monoRadio;
_channel = monoRadio.Checked ? 1 : 2;
Expand All @@ -47,8 +49,10 @@ internal class Analyzer
_timer1.IsEnabled = false;
_spectrumdata = new List<byte>();
_devicenumber = Form1.DeviceNumber();
_freqMultiplyer = Form2.FreqMultiplyer();
_form2EnumButton = enumButton;
_form2NumberOfBars = numberofbars;
_form2FreqMultiplyerTextBox = freqMultiplyerTextBox;
_DATAFLAG = _channel > 1 ? BASSData.BASS_DATA_FFT16384 | BASSData.BASS_DATA_FFT_INDIVIDUAL : BASSData.BASS_DATA_FFT8192;
_lines = Convert.ToInt16(_form2NumberOfBars.SelectedItem);
_UNICODE = Form1.Unicode();
Expand All @@ -58,6 +62,8 @@ internal class Analyzer
_form2EnumButton.Click += new EventHandler(Form2_EnumerateButton_Clicked);
_form2NumberOfBars.SelectedIndexChanged += new EventHandler(Form2_NumberOfBarIndexChanged);
_form2MonoRadio.CheckedChanged += new EventHandler(Form2_MonoRadio_CheckChanged);
devicelist.SelectedIndexChanged += new EventHandler(Form2_devicelist_SelectedIndexChanged);
_form2FreqMultiplyerTextBox.KeyDown += new KeyEventHandler(Form2_FreqMultiplyerTextBox_KeyDown);

Init();
}
Expand All @@ -75,16 +81,20 @@ private void Init()
if (_devicenumber == -1) throw new InvalidOperationException("no device");
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UNICODE, _UNICODE);
var device = BassWasapi.BASS_WASAPI_GetDeviceInfo(_devicenumber);
if (device.IsEnabled && device.IsLoopback)
/*if (device.IsEnabled && device.IsLoopback)
{
_devicelist.Items.Add(string.Format("{0} - {1}", _devicenumber, device.name));
}
}*/
//}
_devicelist.SelectedIndex = 0;
//_devicelist.SelectedIndex = 0;
string itemName = string.Format("{0} - {1}", _devicenumber, device.name);
_devicelist.SelectedIndex = _devicelist.Items.IndexOf(itemName);
}
catch
{
MessageBox.Show("No (saveed) output device found.\r\nPlease enumrate devices from \"Setting\" dialog.",
MessageBox.Show("No (saveed) output device found.\r\n" +
"(May be Device Power-SW off?)\r\n" +
"Please enumrate devices from \"Setting\" dialog.",
"No Output Device - SpeAnaLED",
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
Expand All @@ -108,9 +118,11 @@ public bool Enable
{
if (!_initialized)
{
var deviceArray = (_devicelist.Items[_devicelist.SelectedIndex] as string).Split(' ');
/*var deviceArray = (_devicelist.Items[_devicelist.SelectedIndex] as string).Split(' ');
deviceindex = Convert.ToInt32(deviceArray[0]);
bool result = BassWasapi.BASS_WASAPI_Init(deviceindex, 0, 0, BASSWASAPIInit.BASS_WASAPI_BUFFER, 1f, 0.05f, _process, IntPtr.Zero);
*/
bool result = BassWasapi.BASS_WASAPI_Init(_devicenumber, 0, 0, BASSWASAPIInit.BASS_WASAPI_BUFFER, 1f, 0.05f, _process, IntPtr.Zero);
if (!result)
{
var error = Bass.BASS_ErrorGetCode();
Expand All @@ -119,7 +131,7 @@ public bool Enable
else
{
_initialized = true;
_devicelist.Enabled = false;
//_devicelist.Enabled = false;
}
}
bool startResult = BassWasapi.BASS_WASAPI_Start();
Expand Down Expand Up @@ -158,24 +170,24 @@ private void Timer1_Tick(object sender, EventArgs e)
float[] peak = new float[] { 0f, 0f }; // 0=Left(mono), 1=Right

if (_channel > 1)
freqValue = (int)Math.Pow(2, (bandX * 10.0 / (_lines - 1)) + 4.35); // 4.35 from actual measurement, not logic...
freqValue = (int)(Math.Pow(2, (bandX * 10.0 / (_lines - 1)) + 4.35) * _freqMultiplyer); // 4.35 from actual measurement, not logic...
else
freqValue = (int)(Math.Pow(2, bandX * 10.0 / (_lines - 1) + 4.35) / (_channel * 4)); // Ditto
freqValue = (int)(Math.Pow(2, bandX * 10.0 / (_lines - 1) + 4.35) / (_channel * 4) * _freqMultiplyer); // Ditto

if (freqValue <= fftPos) freqValue = fftPos + 1; // if out of range, min. freq. selected
if (freqValue > 8192 * _channel - _channel) freqValue = 8192 * _channel - _channel; // truncate last data
for (; fftPos < freqValue; fftPos += _channel) // freq band in interreave step
if (freqValue <= fftPos) freqValue = fftPos + 1; // if out of range, min. freq. selected
if (freqValue > 8192 * _channel - _channel) freqValue = 8192 * _channel - _channel; // truncate last data
for (; fftPos < freqValue; fftPos += _channel) // freq band in interreave step
{
for (int i = 0; i < _channel; i++) // interreave L,R,L,R,... or L+R,L+R,L+R...
for (int i = 0; i < _channel; i++) // interreave L,R,L,R,... or L+R,L+R,L+R...
{
if (peak[0] < _fft[1 + fftPos]) peak[0] = _fft[1 + fftPos]; // set max _fft[x] to peak L Ch.
if (peak[0] < _fft[1 + fftPos]) peak[0] = _fft[1 + fftPos]; // set max _fft[x] to peak L Ch.
if (peak[1] < _fft[1 + fftPos + (_channel - 1)]) peak[1] = _fft[1 + fftPos + (_channel - 1)]; // R Ch.
}
}

for (int i = 0; i < _channel; i++)
{
powerY = (int)(Math.Sqrt(peak[i]) * 3 * 255 - 4); // sqrt to make low values more visible
powerY = (int)(Math.Sqrt(peak[i]) * 3 * 255 - 4); // sqrt to make low values more visible
if (powerY > 255) powerY = 255;
if (powerY < 0) powerY = 0;
_spectrumdata.Add((byte)powerY);
Expand All @@ -200,15 +212,14 @@ private void Form2_EnumerateButton_Clicked(object sender, EventArgs e)
Enable = false;
Free();

_devicelist.SelectedIndex = -1;
_devicelist.Items.Clear();

for (int i = 0; i < BassWasapi.BASS_WASAPI_GetDeviceCount(); i++)
{
var device = BassWasapi.BASS_WASAPI_GetDeviceInfo(i);
if (device.IsEnabled && device.IsLoopback)
{
_devicelist.Items.Add(string.Format("{0} - {1}", i, device.name));
_devicenumber = i;
}
}

Expand All @@ -217,6 +228,7 @@ private void Form2_EnumerateButton_Clicked(object sender, EventArgs e)
_devicelist.SelectedIndex = 0;
bool result = Bass.BASS_Init(0, 44100, BASSInit.BASS_DEVICE_DEFAULT, IntPtr.Zero);
if (!result) throw new Exception("Source Device Initialize Error");
_devicenumber = Convert.ToInt16(_devicelist.SelectedItem.ToString().Split(' ')[0]);

Enable = true;
}
Expand All @@ -239,6 +251,33 @@ private void Form2_EnumerateButton_Clicked(object sender, EventArgs e)
_form2EnumButton.Enabled = true;
}

private void Form2_devicelist_SelectedIndexChanged(object sender, EventArgs e)
{
if (!_initialized == false)
{
_initialized = false;
Enable = false;
Free();

try
{
_devicenumber = Convert.ToInt16(_devicelist.SelectedItem.ToString().Split(' ')[0]);
}
catch
{
MessageBox.Show("No Valid Output Device found.",
"No Valid Output Device - SpeAnaLED",
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
Enable = false;
Free();
return;
}
Init();
Enable = true;
}
}

private void Form2_MonoRadio_CheckChanged(object sender, EventArgs e)
{
_channel = _form2MonoRadio.Checked ? 1 : 2;
Expand All @@ -265,5 +304,13 @@ public void Free()
Bass.BASS_Free();
}
}

private void Form2_FreqMultiplyerTextBox_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Return)
{
_freqMultiplyer = Form2.FreqMultiplyer();
}
}
}
}
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