private IPacketTransformer GenerateTransformer(SDPSecurityDescription securityDescription, bool isRtp)
{
var srtpParams = SrtpParameters.GetSrtpParametersForProfile((int)securityDescription.CryptoSuite);
var engine = new SrtpTransformEngine(securityDescription.KeyParams[0].Key,
securityDescription.KeyParams[0].Salt,
srtpParams.GetSrtpPolicy(),
srtpParams.GetSrtcpPolicy());
if (isRtp)
{
return(engine.GetRTPTransformer());
}
else
{
return(engine.GetRTCPTransformer());
}
}
