public void Dispose()
{
largestTimestamp = -1;
CurTimestamp = -1;
lastGC = 0;
SpectrogramHandler.Clear();
Analyser.DisposeAnalyser();
}
public DSPMain(AppController appController)
{
Analyser = new Analyser();
app = appController;
ScriptManager = new ScriptManager();
SpectrogramHandler = new SpectrogramHandler();
LoadScripts();
LoadPresets();
}
// Creates a spectrogram frame at specified update rate containing the current spectrum data, timestamp and analysis
public void WriteToSpectrogram()
{
double curAudioPos = app.AudioSource.AudioAnalysis.CurrentTime.TotalMilliseconds;
if (curAudioPos >= largestTimestamp)
{
if (SpectrogramHandler.Spectrogram.Frames.Count / (curAudioPos / 1000) <= Prefs.SPEC_UPDATE_RATE / app.AudioSource.SpeedControl.PlaybackRate)
{
byte[] specData = SpectrogramQuantiser(spectrumData, out double quantScale);
specData = FilterSpectrogramData(specData);
if (SpectrogramHandler.Spectrogram.FrequencyScale == null)
{
SpectrogramHandler.Spectrogram.FrequencyScale = GetScriptVal("SCALE");
}
if (scriptSet != startingScriptSet || specData.Length != SpectrogramHandler.Spectrogram.FrequencyBins || curAudioPos - largestTimestamp > 1000)
{
SpectrogramHandler.Clear(); // Clears previous spectrogram frames if scripts are changed
SpectrogramHandler.Spectrogram.AudioFilename = app.AudioSource.Filename;
SpectrogramHandler.Spectrogram.ScriptProperties = app.GetScriptSettingValues(app.GetScriptChainData());
startingScriptSet = scriptSet;
}
SpectrogramHandler.CreateFrame(curAudioPos, specData, Analyser.Notes.ToArray(), Analyser.Chords.ToArray(), Analyser.CurrentKey, quantScale);
CurTimestamp = curAudioPos;
largestTimestamp = curAudioPos;
if (curAudioPos - lastGC >= 1000) // Garbage collection every second
{
GC.Collect();
lastGC = curAudioPos;
}
}
else
{
CurTimestamp = 0;
}
}
else
{
CurTimestamp = 0;
}
}