/// <summary>
/// Show a configuration dialog (modal) for JMDWriter
/// </summary>
/// <param name="threads">number of threads</param>
/// <param name="compLevel">compression level</param>
/// <param name="tMin">minimum possible number of threads</param>
/// <param name="tMax">maximum possible number of threads</param>
/// <param name="cMin">minimum compression level, assumed to be "no compression"</param>
/// <param name="cMax">maximum compression level</param>
/// <param name="hwnd">hwnd of parent</param>
/// <returns>false if user canceled; true if user consented</returns>
public static bool DoCompressionDlg(ref int threads, ref int compLevel, int tMin, int tMax, int cMin, int cMax, IWin32Window hwnd)
{
var j = new JmdForm
{
threadsBar = { Minimum = tMin, Maximum = tMax },
compressionBar = { Minimum = cMin, Maximum = cMax }
};
j.threadsBar.Value = threads;
j.compressionBar.Value = compLevel;
j.ThreadsBar_Scroll(null, null);
j.CompressionBar_Scroll(null, null);
j.threadLeft.Text = $"{tMin}";
j.threadRight.Text = $"{tMax}";
j.compressionLeft.Text = $"{cMin}";
j.compressionRight.Text = $"{cMax}";
DialogResult d = j.ShowDialog(hwnd);
threads = j.threadsBar.Value;
compLevel = j.compressionBar.Value;
j.Dispose();
return(d.IsOk());
}
/// <summary>
/// obtain a set of recording compression parameters
/// </summary>
/// <param name="hwnd">hwnd to attach to if the user is shown config dialog</param>
/// <returns>codec token, dispose of it when you're done with it</returns>
public IDisposable AcquireVideoCodecToken(System.Windows.Forms.IWin32Window hwnd)
{
CodecToken ret = new CodecToken();
// load from config and sanitize
int t = Math.Min(Math.Max(Global.Config.JmdThreads, 1), 6);
int c = Math.Min(Math.Max(Global.Config.JmdCompression, Deflater.NO_COMPRESSION), Deflater.BEST_COMPRESSION);
if (!JmdForm.DoCompressionDlg(ref t, ref c, 1, 6, Deflater.NO_COMPRESSION, Deflater.BEST_COMPRESSION, hwnd))
{
return(null);
}
Global.Config.JmdThreads = ret.NumThreads = t;
Global.Config.JmdCompression = ret.CompressionLevel = c;
return(ret);
}
public IDisposable AcquireVideoCodecToken(Config config)
{
var ret = new CodecToken();
// load from config and sanitize
int t = Math.Min(Math.Max(config.JmdThreads, 1), 6);
int c = Math.Min(Math.Max(config.JmdCompression, NO_COMPRESSION), BEST_COMPRESSION);
if (!JmdForm.DoCompressionDlg(ref t, ref c, 1, 6, NO_COMPRESSION, BEST_COMPRESSION, _dialogParent.AsWinFormsHandle()))
{
return(null);
}
config.JmdThreads = ret.NumThreads = t;
config.JmdCompression = ret.CompressionLevel = c;
return(ret);
}