diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index c85538d9..e1f26b44 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -85,6 +85,13 @@ const (
 	RTMP_READ_ERROR         = -2
 	RTMP_READ_EOF           = -1
 	RTMP_READ_IGNORE        = 0
+	RTMP_LF_AUTH            = 0x0001 /* using auth param */
+	RTMP_LF_LIVE            = 0x0002 /* stream is live */
+	RTMP_LF_SWFV            = 0x0004 /* do SWF verification */
+	RTMP_LF_PLST            = 0x0008 /* send playlist before play */
+	RTMP_LF_BUFX            = 0x0010 /* toggle stream on BufferEmpty msg */
+	RTMP_LF_FTCU            = 0x0020 /* free tcUrl on close */
+	RTMP_LF_FAPU            = 0x0040 /* free app on close */
 )
 
 const (
@@ -158,7 +165,7 @@ type RTMP struct {
 	m_clientID             AVal
 	m_read                 RTMP_READ
 	m_write                RTMPPacket
-	m_sb                   C.RTMPSockBuf
+	m_sb                   RTMPSockBuf
 	Link                   C.RTMP_LNK
 }
 
@@ -171,7 +178,7 @@ type RTMPPacket struct {
 	m_nInfoField2     int32
 	m_nBodySize       uint32
 	m_nBytesRead      uint32
-	m_chunk           *C.RTMPChunk
+	m_chunk           *RTMPChunk
 	m_body            *byte
 }
 
@@ -219,6 +226,37 @@ type RTMPChunk struct {
 	c_header     [RTMP_MAX_HEADER_SIZE]byte
 }
 
+type RTMP_LNK struct {
+	hostname      AVal
+	sockshost     AVal
+	playpath0     AVal
+	playpath      AVal
+	tcUrl         AVal
+	swfUrl        AVal
+	pageUrl       AVal
+	app           AVal
+	auth          AVal
+	flashVer      AVal
+	subscribepath AVal
+	usherToken    AVal
+	token         AVal
+	pubUser       AVal
+	pubPasswd     AVal
+	extras        C.AMFObject
+	edepth        int
+	seekTime      int
+	stopTime      int
+	lFlags        int
+	swfAge        int
+	protocol      int
+	timeout       int
+	pFlags        int
+	socksport1    byte
+	socksport2    byte
+	portp1        byte
+	portp2        byte
+}
+
 var _ Session = (*session)(nil)
 
 // NewSession returns a new session.