/// <summary>Calls the stop recording dll function.</summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void stRec_Click(object sender, EventArgs e)
{
if (!dialogOpen)
{
OpenDialog();
}
RecordData rd = StopRec();
byte[] data = new byte[rd.len];
//gets recorded data (samples)
Marshal.Copy(rd.ip, data, 0, (int)rd.len);
//gets wave fmt/riff data
byte[] formatTag = new byte[4];
wf = (WaveForm)Marshal.PtrToStructure(GetWaveform(), typeof(WaveForm));
waveFile = new RWWaveFile(Encoding.ASCII.GetBytes("RIFF"), (uint)(rd.len / wf.nBlockAlign) + 36, Encoding.ASCII.GetBytes("WAVE"),
Encoding.ASCII.GetBytes("fmt "), 16, (ushort)1, wf.nChannels, wf.nSamplesPerSec,
wf.nAvgBytesPerSec, wf.nBlockAlign, wf.wBitsPerSample,
Encoding.ASCII.GetBytes("data"), rd.len);
//sets up samples
if (waveFile.FmtChunk1.BitsPerSample == 16)
{
double[] temp = new double[rd.len / (int)waveFile.FmtChunk1.BlockAlign];
for (int i = 0; i < temp.Length - 1; i++)
{
temp[i] = BitConverter.ToInt16(data, i * (int)waveFile.FmtChunk1.BlockAlign);
}
rawSamples = new double[temp.Length];
rawSamples = temp.Select(x => (x)).ToArray();
}
else if (waveFile.FmtChunk1.BitsPerSample == 32)
{
double[] temp = new double[rd.len / (int)waveFile.FmtChunk1.BlockAlign];
for (int i = 0; i < temp.Length; i++)
{
temp[i] = BitConverter.ToInt32(data, i * (int)waveFile.FmtChunk1.BlockAlign);
}
rawSamples = temp.Select(x => (x)).ToArray();
waveFile.FmtChunk1.FmtTag = 3;
}
waveFile.DataChunk1.Data = rawSamples;
if (waveFile.DataChunk1.Data != null)
{
sel = (int)waveFile.DataChunk1.DataSize;
selEnd = (int)waveFile.DataChunk1.DataSize;
newChart();
}
this.Text = "new untitled recording (" + waveFile.FmtChunk1.BitsPerSample + "bits, " + waveFile.FmtChunk1.SamplesPerSec + "Hz)";
}
/// <summary>Handles the Click event of the openFileToolStripMenuItem control.</summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void openFileToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog fileDlg = new OpenFileDialog();
if (fileDlg.ShowDialog() == DialogResult.OK)
{
filename = fileDlg.FileName;
waveFile = new RWWaveFile(filename);
sel = (int)waveFile.DataChunk1.DataSize;
selEnd = (int)waveFile.DataChunk1.DataSize;
newChart();
newRecording = false;
this.Text = fileDlg.FileName + " (" + waveFile.FmtChunk1.BitsPerSample + "bits, " + waveFile.FmtChunk1.SamplesPerSec + "Hz)";
refreshChart();
}
}