/*------------------------------------------------------------------------- * rtpmkssrc.c - rtpmkssrc *------------------------------------------------------------------------- *//*#include <stdlib.h>#include <rtp.h>#include <hash.h>*/#include "hust_rtp.h"#include "hust_hash.h"/*------------------------------------------------------------------------ * rtpmkssrc - generate a unique synchronization source identifier. * This does not use the random number generater presend in RFC 1889. *------------------------------------------------------------------------ */ssrc_trtpmkssrc(struct session *psn){	ssrc_t ssrc;	do {		ssrc = random_get32();		///要得到隨機數	} while (psn != NULL ? htget(psn->sn_ssrcs, ssrc) != NULL : 0);	return ssrc;}