1 files changed, 50 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/rtp_rfc.h b/openbsc/include/openbsc/rtp_rfc.h
new file mode 100644
index 000000000..68a8e7c97
--- /dev/null
+++ b/openbsc/include/openbsc/rtp_rfc.h
@@ -0,0 +1,50 @@
+#ifndef OPENSC_RTP_RFC_H
+#define OPENSC_RTP_RFC_H
+
+#include <stdint.h>
+#include <unistd.h>
+
+/* attempt to determine byte order */
+#include <sys/param.h>
+#include <limits.h>
+
+#ifndef __BYTE_ORDER
+#error "__BYTE_ORDER should be defined by someone"
+#endif
+
+#define RTP_VERSION	2
+
+#define RTCP_TYPE_SDES	202
+#define RTCP_IE_CNAME	1
+
+/* according to RFC 1889 */
+struct rtcp_hdr {
+	uint8_t byte0;
+	uint8_t type;
+	uint16_t length;
+} __attribute__((packed));
+
+/* according to rtp_proxy.c RFC 3550 */
+struct rtp_hdr {
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	uint8_t  csrc_count:4,
+		  extension:1,
+		  padding:1,
+		  version:2;
+	uint8_t  payload_type:7,
+		  marker:1;
+#elif __BYTE_ORDER == __BIG_ENDIAN
+	uint8_t  version:2,
+		  padding:1,
+		  extension:1,
+		  csrc_count:4;
+	uint8_t  marker:1,
+		  payload_type:7;
+#endif
+	uint16_t sequence;
+	uint32_t timestamp;
+	uint32_t ssrc;
+} __attribute__((packed));
+
+
+#endif