rtspconnection: CSeq validation
Make rtspconnection a little more strict to RFC2326. Make sure that CSeq is in every RTSP message and that CSeq is valid.
Also break the build_next loop if any parsing fails, By acting on the builder->status code.
Make rtspconnection a little more strict to RFC2326. Make sure that CSeq is in every RTSP message and that CSeq is valid.
Also break the build_next loop if any parsing fails, By acting on the builder->status code.