int -> uint32_t (twice)
int -> uint32_t (twice)

persmule/libsrtp,yarrcc/libsrtp-ios,Distrotech/libsrtp,ksophocleous/libsrtp,persmule/libsrtp,ksophocleous/libsrtp,Distrotech/libsrtp,cuijinquan/libsrtp,persmule/libsrtp,yarrcc/libsrtp-ios,yarrcc/libsrtp-ios,cuijinquan/libsrtp,cuijinquan/libsrtp