/*------------------------------------------------------------------------- * rtpstreamon.c - rtpstreamon *------------------------------------------------------------------------- */#include "hust_rtp.h"/*------------------------------------------------------------------------ * rtpstreamon - begin enqueuing packets for a particular stream. * The parameter clockrate is the stream's media clockrate in Hz. * The clockrate is necessary at the RTP layer to computer jitter stats. *------------------------------------------------------------------------ */intrtpstreamon(struct session *psn, ssrc_t ssrc, u32_t clockrate){	struct stream *pstm;	pstm = rtpgetstream(psn, ssrc);	if (pstm == NULL) 		return ERROR;	if (pstm->stm_enqueue == TRUE) {		/* 		 * Return ERROR if stream is already ``on''.		 */		rtpreleasestream(psn, pstm);		return ERROR;	}	pstm->stm_clkrt = clockrate;	pstm->stm_enqueue = TRUE;	rtpreleasestream(psn, pstm);	return OK;}