private void Timer1_Tick(object sender, EventArgs e)
{
pbLevelMask.Height = (int)(panelLevel.Height * (1 - lastAmplitudeFrac));
if (lastAmplitudeFrac < .9)
{
panelLevel.BackColor = Color.Green;
}
else
{
panelLevel.BackColor = Color.Red;
}
if ((spec == null) || (spec.fftList.Count == 0))
{
return;
}
if (!spec.displaySettings.renderNeeded)
{
return;
}
if (!busyRendering)
{
busyRendering = true;
spec.displaySettings.renderNeeded = false;
pbSpec.BackgroundImage = spec.GetBitmap(
intensity: spec.displaySettings.brightness,
freqLow: spec.displaySettings.freqLow,
freqHigh: spec.displaySettings.freqHigh
);
pbSpec.Size = pbSpec.BackgroundImage.Size;
busyRendering = false;
}
}
public SuccessViewModel CalculateSuccess(SongViewModel song)
{
try
{
SongBE entity;
entity = Mapper.Map <SongViewModel, SongBE>(song);
SongDAL songDAL = new SongDAL();
SuccessViewModel successViewModel = new SuccessViewModel();
var listSongs = songDAL.GetSongsToCalculate(entity.Category);
(int sampleRate, double[] audio) = WavFile.ReadMono(FileUtils.GetRepoMusicPath(song.SongKey));
var spec = new Spectrogram.Spectrogram(sampleRate / 2, fftSize: (16384 / 8), stepSize: (2500 * 5), maxFreq: 2200);
spec.Add(audio);
var tempPath = Path.GetTempPath();
spec.SaveImage(tempPath + "/" + song.SongKey + ".jpg", intensity: 5, dB: true);
var file = FileUtils.GetImageBytes(tempPath + "/" + song.SongKey + ".jpg");
successViewModel.ImageBase64 = "data:image/jpg;base64," + Convert.ToBase64String(file);
var bmHash = this.GetHash(spec.GetBitmap());
List <Spectrogram.Spectrogram> spectrograms = new List <Spectrogram.Spectrogram>();
foreach (var son in listSongs)
{
(int sampleRateSong, double[] audioSong) = WavFile.ReadMono(FileUtils.GetRepoMusicPath(son.SongKey));
var specSong = new Spectrogram.Spectrogram(sampleRateSong / 2, fftSize: (16384 / 8), stepSize: (2500 * 5), maxFreq: 2200);
specSong.Add(audioSong);
spectrograms.Add(specSong);
}
int equalElements = 0;
foreach (var sp in spectrograms)
{
equalElements += bmHash.Zip(this.GetHash(sp.GetBitmap()), (i, j) => i == j).Count(eq => eq);
}
var con = Convert.ToInt32(equalElements / spectrograms.Count);
successViewModel.Percentage = Convert.ToInt32((con * 100) / bmHash.Count);
return(successViewModel);
}
catch (Exception ex)
{
throw new Exception(Messages.Generic_Error);
}
}
private void Timer_Tick(object sender, EventArgs e)
{
double[] newAudio = listener.GetNewAudio();
spec.Add(newAudio, process: false);
double multiplier = Brightness / 20.0;
if (spec.FftsToProcess > 0)
{
Stopwatch sw = Stopwatch.StartNew();
spec.Process();
//if (SpectrogamImageSource != null)
spec.SetFixedWidth(1024);// (int)SpectrogamImageSource.Width);
Bitmap bmpSpec = new Bitmap(spec.Width, spec.Height, System.Drawing.Imaging.PixelFormat.Format32bppPArgb);
using (var bmpSpecIndexed = spec.GetBitmap(multiplier, Decibels, Roll))
using (var gfx = Graphics.FromImage(bmpSpec))
using (var pen = new System.Drawing.Pen(System.Drawing.Color.White))
{
gfx.DrawImage(bmpSpecIndexed, 0, 0);
if (Roll)
{
gfx.DrawLine(pen, spec.NextColumnIndex, 0, spec.NextColumnIndex, SpectrogramHeight);
}
}
sw.Stop();
//SpectrogamImageSource.Dispose();
SpectrogamImageSource = ImageHelpers.BitmapToImageSource(bmpSpec);
VerticalScaleImageSource = ImageHelpers.BitmapToImageSource(spec.GetVerticalScale(75));
RenderTime = $"Render time: {sw.ElapsedMilliseconds:D2} ms";
Peak = $"Peak (Hz): {spec.GetPeak().freqHz:N0}";
}
TotalTime = $"Time: {listener.TotalTimeSec:N3} sec";
FftsProcessed = $"FFTs processed: {spec.FftsProcessed:N0}";
//Default max on the progressbar is 100 so hardcoding it here for now
Amplitude = (int)(listener.AmplitudeFrac * 100);
SpectrogramHeight = spec.Height;
VerticalScaleImageSource = null;
VerticalScaleImageSource = ImageHelpers.BitmapToImageSource(spec.GetVerticalScale(LEGEND_WIDTH));
}
