diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index d656fb3a..3c0afeb2 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -733,8 +733,7 @@ func C_SendConnectPacket(r *C_RTMP, cp *C_RTMPPacket) int {
 	packet.m_nTimeStamp = 0
 	packet.m_nInfoField2 = 0
 	packet.m_hasAbsTimestamp = 0
-	packet.m_body = (*byte)(incBytePtr(unsafe.Pointer(&pbuf[0]),
-		RTMP_MAX_HEADER_SIZE))
+	packet.m_body = &pbuf[RTMP_MAX_HEADER_SIZE]
 
 	enc = (*byte)(unsafe.Pointer(packet.m_body))
 
@@ -871,8 +870,7 @@ func C_RTMP_SendCreateStream(r *C_RTMP) int32 {
 	packet.m_nTimeStamp = 0
 	packet.m_nInfoField2 = 0
 	packet.m_hasAbsTimestamp = 0
-	packet.m_body = (*byte)(incBytePtr(unsafe.Pointer(&pbuf[0]),
-		int(RTMP_MAX_HEADER_SIZE)))
+	packet.m_body = &pbuf[RTMP_MAX_HEADER_SIZE]
 
 	enc = (*byte)(unsafe.Pointer(packet.m_body))
 	enc = C_AMF_EncodeString(enc, pend, &av_createStream)
@@ -902,8 +900,7 @@ func C_SendReleaseStream(r *C_RTMP) int32 {
 	packet.m_nTimeStamp = 0
 	packet.m_nInfoField2 = 0
 	packet.m_hasAbsTimestamp = 0
-	packet.m_body = (*byte)(incBytePtr(unsafe.Pointer(&pbuf[0]),
-		int(RTMP_MAX_HEADER_SIZE)))
+	packet.m_body = &pbuf[RTMP_MAX_HEADER_SIZE]
 
 	enc = (*byte)(unsafe.Pointer(packet.m_body))
 	enc = C_AMF_EncodeString(enc, pend, &av_releaseStream)
@@ -936,8 +933,7 @@ func C_SendFCPublish(r *C_RTMP) int32 {
 	packet.m_nTimeStamp = 0
 	packet.m_nInfoField2 = 0
 	packet.m_hasAbsTimestamp = 0
-	packet.m_body = (*byte)(incBytePtr(unsafe.Pointer(&pbuf[0]),
-		int(RTMP_MAX_HEADER_SIZE)))
+	packet.m_body = &pbuf[RTMP_MAX_HEADER_SIZE]
 
 	enc = (*byte)(unsafe.Pointer(packet.m_body))
 	enc = C_AMF_EncodeString(enc, pend, &av_FCPublish)
@@ -1006,8 +1002,7 @@ func C_SendPublish(r *C_RTMP) int32 {
 	packet.m_nTimeStamp = 0
 	packet.m_nInfoField2 = int32(r.m_stream_id)
 	packet.m_hasAbsTimestamp = 0
-	packet.m_body = (*byte)(incBytePtr(unsafe.Pointer(&pbuf[0]),
-		int(RTMP_MAX_HEADER_SIZE)))
+	packet.m_body = &pbuf[RTMP_MAX_HEADER_SIZE]
 
 	enc = (*byte)(unsafe.Pointer(packet.m_body))
 	enc = C_AMF_EncodeString(enc, pend, &av_publish)
@@ -1045,8 +1040,7 @@ func C_SendBytesReceived(r *C_RTMP) int {
 	packet.m_nTimeStamp = 0
 	packet.m_nInfoField2 = 0
 	packet.m_hasAbsTimestamp = 0
-	packet.m_body = (*byte)(incBytePtr(unsafe.Pointer(&pbuf[0]),
-		RTMP_MAX_HEADER_SIZE))
+	packet.m_body = &pbuf[RTMP_MAX_HEADER_SIZE]
 
 	packet.m_nBodySize = 4
 
@@ -1072,8 +1066,7 @@ func C_SendCheckBW(r *C_RTMP) int32 {
 	packet.m_nTimeStamp = 0
 	packet.m_nInfoField2 = 0
 	packet.m_hasAbsTimestamp = 0
-	packet.m_body = (*byte)(incBytePtr(unsafe.Pointer(&pbuf[0]),
-		int(RTMP_MAX_HEADER_SIZE)))
+	packet.m_body = &pbuf[RTMP_MAX_HEADER_SIZE]
 
 	enc = (*byte)(unsafe.Pointer(packet.m_body))
 	enc = C_AMF_EncodeString(enc, pend, &av__checkbw)