/// <summary>Copy the stream into a new file</summary>
/// <param name="fileName">Name of the new file</param>
public override void ExportStream(String fileName)
{
Avi.AVICOMPRESSOPTIONS_CLASS opts = new Avi.AVICOMPRESSOPTIONS_CLASS();
opts.fccType = (UInt32)Avi.mmioStringToFOURCC("auds", 0);
opts.fccHandler = (UInt32)Avi.mmioStringToFOURCC("CAUD", 0);
opts.dwKeyFrameEvery = 0;
opts.dwQuality = 0;
opts.dwFlags = 0;
opts.dwBytesPerSecond = 0;
opts.lpFormat = new IntPtr(0);
opts.cbFormat = 0;
opts.lpParms = new IntPtr(0);
opts.cbParms = 0;
opts.dwInterleaveEvery = 0;
Avi.AVISaveV(fileName, 0, 0, 1, ref aviStream, ref opts);
}