public SaveResult StartRecord(string filename, double interval, ImageRotation rotation)
{
//-----------------------
// Runs on the UI thread.
//-----------------------
if (imageDescriptor == null)
{
throw new NotSupportedException("ImageDescriptor must be set before prepare.");
}
this.filename = filename;
if (writer != null)
{
writer.Dispose();
}
writer = new MJPEGWriter();
VideoInfo info = new VideoInfo();
info.OriginalSize = new Size(imageDescriptor.Width, imageDescriptor.Height);
bool uncompressed = PreferencesManager.CapturePreferences.SaveUncompressedVideo && imageDescriptor.Format != ImageFormat.JPEG;
string formatString = FilenameHelper.GetFormatStringCapture(uncompressed);
double fileInterval = CalibrationHelper.ComputeFileFrameInterval(interval);
log.DebugFormat("Frame budget for writer [{0}]: {1:0.000} ms.", shortId, interval);
SaveResult result = writer.OpenSavingContext(filename, info, formatString, imageDescriptor.Format, uncompressed, interval, fileInterval, rotation);
recording = true;
return(result);
}