First checkin

git-svn-id: https://oreka.svn.sourceforge.net/svnroot/oreka/trunk@2 09dcff7a-b715-0410-9601-b79a96267cd0

1 files changed, 71 insertions, 0 deletions

diff --git a/orkaudio/audiocaptureplugins/voip/PacketHeaderDefs.h b/orkaudio/audiocaptureplugins/voip/PacketHeaderDefs.h
new file mode 100644
index 0000000..1293c5c
--- /dev/null
+++ b/orkaudio/audiocaptureplugins/voip/PacketHeaderDefs.h
@@ -0,0 +1,71 @@
+/*
+ * Oreka -- A media capture and retrieval platform
+ * 
+ * Copyright (C) 2005, orecx LLC
+ *
+ * http://www.orecx.com
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License.
+ * Please refer to http://www.gnu.org/copyleft/gpl.html
+ *
+ */
+
+
+#ifndef __PACKETHEADERDEFS_H__
+#define __PACKETHEADERDEFS_H__
+
+
+// Structure of Ethernet header
+typedef struct
+{
+	unsigned char sourceMac[6];
+	unsigned char destinationMac[6];
+	unsigned short length;
+
+} EthernetHeaderStruct;
+
+// Structure of an internet header, naked of options, only valid for little endian
+typedef struct
+{
+	unsigned char	ip_hl:4;		// Header length
+	unsigned char	ip_v:4;			// IP protocol version
+	unsigned char	ip_tos;			// Type of service 
+	unsigned short	ip_len;			// Total length 
+	unsigned short	ip_id;			// Identification
+	unsigned short	ip_off;			// Fragment offset field
+	unsigned char	ip_ttl;			// Time to live
+	unsigned char	ip_p;			// Protocol
+	unsigned short	ip_sum;			// Header checksum
+	struct in_addr	ip_src;			// Source address
+	struct in_addr	ip_dest;		// Destination address
+} IpHeaderStruct;
+
+// Structure of UDP header
+typedef struct
+{
+	unsigned short source;			// Source port
+	unsigned short dest;			// Destination port
+	unsigned short len;				// UDP length
+	unsigned short check;			// UDP Checksum
+} UdpHeaderStruct;
+
+#define RTP_PT_PCMU 0
+#define RTP_PT_PCMA 8
+
+// Structure of RTP header, only valid for little endian
+typedef struct {
+	unsigned short cc:4;		// CSRC count
+	unsigned short x:1;			// header extension flag
+	unsigned short p:1;			// padding flag
+	unsigned short version:2;	// protocol version
+	unsigned short pt:7;		// payload type
+	unsigned short m:1;			// marker bit
+	unsigned short seq;			// sequence number
+	unsigned int ts;			// timestamp
+	unsigned int ssrc;			// synchronization source
+	//unsigned int csrc[1];		// optional CSRC list
+} RtpHeaderStruct;
+
+#endif
+