private void Recorder_OnPeakVolumeChanged(object sender, OnPeakVolumeChangedArgs e)
{
if (stopForm != null)
{
stopForm.UpdateVolumeBar(e.Volume);
}
}
protected virtual void PeakVolumeChanged(OnPeakVolumeChangedArgs e)
{
EventHandler <OnPeakVolumeChangedArgs> handler = OnPeakVolumeChanged;
if (handler != null)
{
handler(this, e);
}
}
private void audioSource_DataAvailable(object sender, WaveInEventArgs e)
{
int vol = 0;
if (waveFile != null)
{
if (Mute)
{
waveFile.Write(new byte[e.BytesRecorded], 0, e.BytesRecorded);
}
else
{
waveFile.Write(e.Buffer, 0, e.BytesRecorded);
}
waveFile.Flush();
}
var signalled = WaitHandle.WaitAny(new WaitHandle[] { videoFrameWritten, stopThread });
if (signalled == 0)
{
if (audioSource.WaveFormat.BitsPerSample == 32)
{
if (Mute)
{
audioStream.WriteBlock(new byte[e.BytesRecorded / 2], 0, e.BytesRecorded / 2);
}
else
{
byte[] newArray16Bit = new byte[e.BytesRecorded / 2];
short two;
float value;
for (int i = 0, j = 0; i < e.BytesRecorded; i += 4, j += 2)
{
value = (BitConverter.ToSingle(e.Buffer, i));
two = (short)(value * short.MaxValue);
newArray16Bit[j] = (byte)(two & 0xFF);
newArray16Bit[j + 1] = (byte)((two >> 8) & 0xFF);
}
audioStream.WriteBlock(newArray16Bit, 0, e.BytesRecorded / 2);
float max = 0;
for (int index = 0; index < e.BytesRecorded / 2; index += 2)
{
short sample = (short)((newArray16Bit[index + 1] << 8) | newArray16Bit[index + 0]);
var sample32 = sample / 32768f;
if (sample32 < 0)
{
sample32 = -sample32;
}
if (sample32 > max)
{
max = sample32;
}
}
vol = (int)(100 * max);
}
}
else
{
if (Mute)
{
audioStream.WriteBlock(new byte[e.BytesRecorded], 0, e.BytesRecorded);
}
else
{
audioStream.WriteBlock(e.Buffer, 0, e.BytesRecorded);
float max = 0;
for (int index = 0; index < e.BytesRecorded; index += 2)
{
short sample = (short)((e.Buffer[index + 1] << 8) | e.Buffer[index + 0]);
var sample32 = sample / 32768f;
if (sample32 < 0)
{
sample32 = -sample32;
}
if (sample32 > max)
{
max = sample32;
}
}
vol = (int)(100 * max);
}
}
audioBlockWritten.Set();
}
OnPeakVolumeChangedArgs opvcArgs = new OnPeakVolumeChangedArgs()
{
Volume = vol
};
PeakVolumeChanged(opvcArgs);
}
