rtp: add rtp_is_rtcp_packet() (#405)

baresip · Jun 19, 2022 · 66c4e43 · 66c4e43
1 parent 8d4f83d
commit 66c4e43
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diff --git a/include/re_rtp.h b/include/re_rtp.h
@@ -248,6 +248,7 @@ int   rtcp_msg_print(struct re_printf *pf, const struct rtcp_msg *msg);
 int   rtcp_sdes_encode(struct mbuf *mb, uint32_t src, uint32_t itemc, ...);
 const char *rtcp_type_name(enum rtcp_type type);
 const char *rtcp_sdes_name(enum rtcp_sdes_type sdes);
+bool rtp_is_rtcp_packet(const struct mbuf *mb);
 
 
 static inline bool rtp_pt_is_rtcp(uint8_t pt)

diff --git a/src/rtp/rtcp.c b/src/rtp/rtcp.c
@@ -283,3 +283,16 @@ int rtcp_msg_print(struct re_printf *pf, const struct rtcp_msg *msg)
 
 	return err;
 }
+
+
+bool rtp_is_rtcp_packet(const struct mbuf *mb)
+{
+	uint8_t pt;
+
+	if (mbuf_get_left(mb) < 2)
+		return false;
+
+	pt = mbuf_buf(mb)[1] & 0x7f;
+
+	return rtp_pt_is_rtcp(pt);
+}