/**
* Tries to initialize {@link #_srtpTransformer} by using the <tt>DtlsPacketTransformer</tt> for
* RTP.
*
* @return the (possibly updated) value of {@link #_srtpTransformer}.
*/
private SinglePacketTransformer initializeSRTCPTransformerFromRtp() {
DtlsPacketTransformer rtpTransformer =
(DtlsPacketTransformer) getTransformEngine().getRTPTransformer();
// Prevent recursion (that is pretty much impossible to ever happen).
if (rtpTransformer != this) {
PacketTransformer srtpTransformer = rtpTransformer.waitInitializeAndGetSRTPTransformer();
if (srtpTransformer != null && srtpTransformer instanceof SRTPTransformer) {
synchronized (this) {
if (_srtpTransformer == null) {
_srtpTransformer = new SRTCPTransformer((SRTPTransformer) srtpTransformer);
// For the sake of completeness, we notify whenever we
// assign to _srtpTransformer.
notifyAll();
}
}
}
}
return _srtpTransformer;
}
