diff --git a/src/rtp/rtcp.h b/src/rtp/rtcp.h
index d85404866..a935c659a 100644
--- a/src/rtp/rtcp.h
+++ b/src/rtp/rtcp.h
@@ -65,12 +65,12 @@ struct rtp_member *member_add(struct hash *ht, uint32_t src);
 struct rtp_member *member_find(struct hash *ht, uint32_t src);
 
 /* Source */
-void source_init_seq(struct rtp_source *s, uint16_t seq);
-int  source_update_seq(struct rtp_source *s, uint16_t seq);
-void source_calc_jitter(struct rtp_source *s, uint32_t rtp_ts,
+void rtp_source_init_seq(struct rtp_source *s, uint16_t seq);
+int  rtp_source_update_seq(struct rtp_source *s, uint16_t seq);
+void rtp_source_calc_jitter(struct rtp_source *s, uint32_t rtp_ts,
 			uint32_t arrival);
-int  source_calc_lost(const struct rtp_source *s);
-uint8_t source_calc_fraction_lost(struct rtp_source *s);
+int  rtp_source_calc_lost(const struct rtp_source *s);
+uint8_t rtp_source_calc_fraction_lost(struct rtp_source *s);
 
 /* RR (Reception report) */
 int rtcp_rr_alloc(struct rtcp_rr **rrp, size_t count);
diff --git a/src/rtp/sess.c b/src/rtp/sess.c
index 78a0bb54a..d634da08f 100644
--- a/src/rtp/sess.c
+++ b/src/rtp/sess.c
@@ -401,8 +401,8 @@ static bool sender_apply_handler(struct le *le, void *arg)
 
 	/* Initialise the members */
 	rr.ssrc     = mbr->src;
-	rr.fraction = source_calc_fraction_lost(s);
-	rr.lost     = source_calc_lost(s);
+	rr.fraction = rtp_source_calc_fraction_lost(s);
+	rr.lost     = rtp_source_calc_lost(s);
 	rr.last_seq = s->cycles | s->max_seq;
 	rr.jitter   = s->jitter >> 4;
 	rr.lsr      = calc_lsr(&s->last_sr);
@@ -596,13 +596,13 @@ void rtcp_sess_rx_rtp(struct rtcp_sess *sess, struct rtp_header *hdr,
 		}
 
 		/* first packet - init sequence number */
-		source_init_seq(mbr->s, hdr->seq);
+		rtp_source_init_seq(mbr->s, hdr->seq);
 		/* probation not used */
 		sa_cpy(&mbr->s->rtp_peer, peer);
 		++sess->senderc;
 	}
 
-	if (!source_update_seq(mbr->s, hdr->seq)) {
+	if (!rtp_source_update_seq(mbr->s, hdr->seq)) {
 		DEBUG_WARNING("rtp_update_seq() returned 0\n");
 	}
 
@@ -616,7 +616,7 @@ void rtcp_sess_rx_rtp(struct rtcp_sess *sess, struct rtp_header *hdr,
 		 * https://www.cs.columbia.edu/~hgs/rtp/faq.html#jitter).
 		 */
 		if (hdr->ts != mbr->s->last_rtp_ts)
-			source_calc_jitter(mbr->s, hdr->ts,
+			rtp_source_calc_jitter(mbr->s, hdr->ts,
 					   (uint32_t)hdr->ts_arrive);
 	}
 
@@ -665,7 +665,7 @@ int rtcp_stats(struct rtp_sock *rs, uint32_t ssrc, struct rtcp_stats *stats)
 	}
 
 	stats->rx.sent = mbr->s->received;
-	stats->rx.lost = source_calc_lost(mbr->s);
+	stats->rx.lost = rtp_source_calc_lost(mbr->s);
 	stats->rx.jit  = sess->srate_rx ?
 		1000000 * (mbr->s->jitter>>4) / sess->srate_rx : 0;
 
diff --git a/src/rtp/source.c b/src/rtp/source.c
index c6a324229..21c2268be 100644
--- a/src/rtp/source.c
+++ b/src/rtp/source.c
@@ -20,7 +20,7 @@ enum {
 };
 
 
-void source_init_seq(struct rtp_source *s, uint16_t seq)
+void rtp_source_init_seq(struct rtp_source *s, uint16_t seq)
 {
 	if (!s)
 		return;
@@ -39,7 +39,7 @@ void source_init_seq(struct rtp_source *s, uint16_t seq)
 /*
  * See RFC 3550 - A.1 RTP Data Header Validity Checks
  */
-int source_update_seq(struct rtp_source *s, uint16_t seq)
+int rtp_source_update_seq(struct rtp_source *s, uint16_t seq)
 {
 	uint16_t udelta = seq - s->max_seq;
 	const int MAX_DROPOUT = 3000;
@@ -57,7 +57,7 @@ int source_update_seq(struct rtp_source *s, uint16_t seq)
 			s->probation--;
 			s->max_seq = seq;
 			if (s->probation == 0) {
-				source_init_seq(s, seq);
+				rtp_source_init_seq(s, seq);
 				s->received++;
 				return 1;
 			}
@@ -88,7 +88,7 @@ int source_update_seq(struct rtp_source *s, uint16_t seq)
 			 * restarted without telling us so just re-sync
 			 * (i.e., pretend this was the first packet).
 			 */
-			source_init_seq(s, seq);
+			rtp_source_init_seq(s, seq);
 		}
 		else {
 			s->bad_seq = (seq + 1) & (RTP_SEQ_MOD-1);
@@ -111,7 +111,7 @@ int source_update_seq(struct rtp_source *s, uint16_t seq)
  *     rtp_ts:  the timestamp from the incoming RTP packet
  *     arrival: the current time in the same units.
  */
-void source_calc_jitter(struct rtp_source *s, uint32_t rtp_ts,
+void rtp_source_calc_jitter(struct rtp_source *s, uint32_t rtp_ts,
 			uint32_t arrival)
 {
 	const int transit = arrival - rtp_ts;
@@ -132,7 +132,7 @@ void source_calc_jitter(struct rtp_source *s, uint32_t rtp_ts,
 
 
 /* A.3 */
-int source_calc_lost(const struct rtp_source *s)
+int rtp_source_calc_lost(const struct rtp_source *s)
 {
 	int extended_max = s->cycles + s->max_seq;
 	int expected = extended_max - s->base_seq + 1;
@@ -151,7 +151,7 @@ int source_calc_lost(const struct rtp_source *s)
 
 
 /* A.3 */
-uint8_t source_calc_fraction_lost(struct rtp_source *s)
+uint8_t rtp_source_calc_fraction_lost(struct rtp_source *s)
 {
 	int extended_max = s->cycles + s->max_seq;
 	int expected = extended_max - s->base_seq + 1;