private WindowReader ProcessData(byte[] data, WindowReader wr)
{
float[] dataInt = ConvertFromByteArrayToFloatArray(data);
wr.PeakEnd = FindPeak(dataInt);
float[] newData = new float[wr.PeakEnd];
Array.Copy(dataInt, newData, wr.PeakEnd);
int d = wr.PeakEnd / 384;
wr.DataSum = PixelPack(newData, d);
return(wr);
}
private void ReadWav(Segment s)
{
FileStream fr = new FileStream(@"C:\384kHzStereo.wav", FileMode.Open);
WindowReader wr = new WindowReader();
wr.Segment = s;
wr.Segment.CurrentPosition = wr.Segment.Start;
fr.Seek(wr.Segment.Start, System.IO.SeekOrigin.Begin);
x = 0;
y = 0;
wr.Samples = new byte[wr.Segment.Length];
fr.Read(wr.Samples, 0, wr.Samples.Length);
Tuple <byte[], byte[]> data = SplitChannels(wr.Samples);
if (wr.Segment.Channel == Channel.Left)
{
wr = ProcessData(data.Item1, wr);
GenerateImage(wr.DataSumList, ref leftImage);
}
else
{
wr = ProcessData(data.Item2, wr);
GenerateImage(wr.DataSumList, ref rightImage);
}
fr.Close();
if (leftImage != null)
{
pictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;
pictureBox1.Image = leftImage;
pictureBox1.Invalidate();
pictureBox1.Update();
pictureBox1.Refresh();
}
if (rightImage != null)
{
pictureBox2.SizeMode = PictureBoxSizeMode.CenterImage;
pictureBox2.Image = rightImage;
pictureBox2.Invalidate();
pictureBox2.Update();
pictureBox2.Refresh();
}
//leftImage.Save(@"C:\1.bmp", ImageFormat.Bmp);
}
private WindowReader ProcessData(byte[] data, WindowReader wr)
{
float[] dataInt = ConvertFromByteArrayToFloatArray(data);
dataInt = Invert(dataInt);
wr.PeakStart = FindPeak(dataInt);
wr.PeakEnd = FindPeakLow(dataInt);
float[] newData = new float[wr.PeakEnd - wr.PeakStart];
Array.Copy(dataInt, wr.PeakStart, newData, 0, newData.Length);
d = (wr.PeakEnd - wr.PeakStart) / 384;
wr.DataSum = PixelPack(newData, d);
return(wr);
}
private WindowReader ProcessData(byte[] data, WindowReader wr)
{
float[] dataInt = ConvertFromByteArrayToFloatArray(data);
//TODO: Divide by a time frame
int numberOfColumns = dataInt.Length / 3299;
if (wr.Segment.Channel == Channel.Left)
{
leftImage = new Bitmap(numberOfColumns, 384, PixelFormat.Format32bppRgb);
}
else
{
rightImage = new Bitmap(numberOfColumns, 384, PixelFormat.Format32bppRgb);
}
wr.DataSumList = PixelPack(dataInt, numberOfColumns);
return(wr);
}
private void ReadWav(Segment s)
{
FileStream fr = new FileStream(@"C:\384kHzStereo.wav", FileMode.Open);
WindowReader wr = null;
Bitmap leftImage = null;
Bitmap rightImage = null;
if (s.Channel == Channel.Left)
{
leftImage = new Bitmap(800, 384, PixelFormat.Format32bppRgb);
}
else
{
rightImage = new Bitmap(800, 384, PixelFormat.Format32bppRgb);
}
x = 0;
y = 0;
for (int i = 0; i < 800; i++)
{
if (wr == null)
{
wr = new WindowReader();
wr.Segment = s;
wr.PeakStart = 0;
wr.Segment.CurrentPosition = wr.Segment.Start;
fr.Seek(wr.Segment.Start, System.IO.SeekOrigin.Begin);
}
else
{
wr.Segment.CurrentPosition += wr.PeakEnd * 8;
fr.Seek(wr.Segment.CurrentPosition, System.IO.SeekOrigin.Begin);
}
if (wr.Segment.CurrentPosition + wr.Segment.WindowLength >= wr.Segment.Start + wr.Segment.Length)
{
continue;
}
wr.Samples = new byte[wr.Segment.WindowLength];
fr.Read(wr.Samples, 0, wr.Samples.Length);
Tuple <byte[], byte[]> data = SplitChannels(wr.Samples);
if (wr.Segment.Channel == Channel.Left)
{
wr = ProcessData(data.Item1, wr);
GenerateImage(wr.DataSum, ref leftImage);
}
else
{
wr = ProcessData(data.Item2, wr);
GenerateImage(wr.DataSum, ref rightImage);
}
}
fr.Close();
if (leftImage != null)
{
pictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;
pictureBox1.Image = leftImage;
pictureBox1.Invalidate();
pictureBox1.Update();
pictureBox1.Refresh();
}
if (rightImage != null)
{
pictureBox2.SizeMode = PictureBoxSizeMode.CenterImage;
pictureBox2.Image = rightImage;
pictureBox2.Invalidate();
pictureBox2.Update();
pictureBox2.Refresh();
}
//leftImage.Save(@"C:\1.bmp", ImageFormat.Bmp);
}
