/// <summary>
/// Initialisiert den Descrambler
/// </summary>
private void Initialize()
{
if (_Algo != null)
{
return;
}
try
{
_Algo = new DvbCsa(); // initial DVBCSA.
}
catch (Exception ex)
{
LogProvider.Exception(cLogSection, Message.DescrCsaFailed, ex);
_Algo = null; // im Fehlerfall. Fehlt ffdecsa.dll?
}
}
/// <summary>
/// Setzt den Descrambler-Modus
/// </summary>
/// <param name="algo">Zu verwendender Algorithmus</param>
/// <param name="mode">Betriebsmodus des Algorithmus, wird für DVB-CSA ignoriert</param>
public void SetDescramblerMode(DescramblerAlgo algo, DescramblerMode mode)
{
if (_Disposed)
{
throw new ObjectDisposedException(GetType().Name);
}
Type t = null;
lock (this)
{
if (_Algo != null)
{
t = _Algo.GetType();
}
try
{
switch (algo)
{
case DescramblerAlgo.DvbCsa:
if (t != typeof(DvbCsa))
{
if (_Algo != null)
{
_Algo.Dispose();
}
_Algo = new DvbCsa();
}
break;
case DescramblerAlgo.Des:
if (t != typeof(Des))
{
if (_Algo != null)
{
_Algo.Dispose();
}
_Algo = new Des();
}
break;
case DescramblerAlgo.Aes128:
if (t != typeof(Aes128))
{
if (_Algo != null)
{
_Algo.Dispose();
}
_Algo = new Aes128();
}
break;
}
_Algo.SetDescramblerMode(mode);
}
catch (Exception ex)
{
LogProvider.Exception(cLogSection, Message.DescrAlgoSwitchFailed, ex);
}
}
}
