diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index 6c992ecb..0f0ed99e 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -153,8 +153,23 @@ func memmove(to, from unsafe.Pointer, n uintptr) {
 }
 
 // av_setDataFrame is a static const global in rtmp.c
-var setDataFrame = AVC("@setDataFrame")
-var av_connect = AVC("connect")
+var (
+	setDataFrame      = AVC("@setDataFrame")
+	av_connect        = AVC("connect")
+	av_app            = AVC("app")
+	av_type           = AVC("type")
+	av_nonprivate     = AVC("nonprivate")
+	av_flashVer       = AVC("flashVer")
+	av_swfUrl         = AVC("swfUrl")
+	av_tcUrl          = AVC("tcUrl")
+	av_fpad           = AVC("fpad")
+	av_capabilities   = AVC("capabilities")
+	av_audioCodecs    = AVC("audioCodecs")
+	av_videoCodecs    = AVC("videoCodecs")
+	av_videoFunction  = AVC("videoFunction")
+	av_pageUrl        = AVC("av_pageUrl")
+	av_objectEncoding = AVC("av_objectEncoding")
+)
 
 var packetSize = [...]int{12, 8, 4, 1}
 
@@ -807,8 +822,140 @@ func sendConnectPacket(r *C.RTMP, cp *C.RTMPPacket) int {
 	enc = (*byte)(unsafe.Pointer(packet.m_body))
 	enc = afmEncodeString(enc, (*byte)(pend), &av_connect)
 	r.m_numInvokes += 1
-	enc = afmEncodeString(unsafe.Pointer(enc), unsafe.Pointer(pend), r.m_numInvokes)
-	return 1
+	// TODO: port this
+	enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNumber((*C.char)(unsafe.Pointer(enc)),
+		(*C.char)(unsafe.Pointer(pend)),
+		C.double(r.m_numInvokes))))
+	// TODO: port this const
+	*indxBytePtr(unsafe.Pointer(enc), 0) = C.AMF_OBJECT
+
+	// TODO: port this
+	enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedString((*C.char)(unsafe.Pointer(
+		enc)), (*C.char)(unsafe.Pointer(pend)), &av_app, &r.Link.app)))
+
+	if enc == nil {
+		return 0
+	}
+	if r.Link.protocol&RTMP_FEATURE_WRITE != 0 {
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedString((*C.char)(unsafe.Pointer(enc)),
+			(*C.char)(unsafe.Pointer(pend)), &av_type, &av_nonprivate)))
+
+		if enc == nil {
+			return 0
+		}
+	}
+
+	if r.Link.flashVer.av_len != 0 {
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedString((*C.char)(unsafe.Pointer(enc)),
+			(*C.char)(unsafe.Pointer(pend)), &av_flashVer, &r.Link.flashVer)))
+		if enc == nil {
+			return 0
+		}
+	}
+	if r.Link.swfUrl.av_len != 0 {
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedString((*C.char)(unsafe.Pointer(enc)),
+			(*C.char)(unsafe.Pointer(pend)), &av_swfUrl, &r.Link.swfUrl)))
+		if enc == nil {
+			return 0
+		}
+	}
+
+	if r.Link.tcUrl.av_len != 0 {
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedString((*C.char)(unsafe.Pointer(enc)),
+			(*C.char)(unsafe.Pointer(pend)), &av_tcUrl, &r.Link.tcUrl)))
+		if enc == nil {
+			return 0
+		}
+	}
+
+	if r.Link.protocol&RTMP_FEATURE_WRITE == 0 {
+		// TODO: port this
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedBoolean((*C.char)(
+			unsafe.Pointer(enc)), (*C.char)(unsafe.Pointer(pend)), &av_fpad, 0)))
+		if enc == nil {
+			return 0
+		}
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedNumber((*C.char)(
+			unsafe.Pointer(enc)), (*C.char)(unsafe.Pointer(pend)), &av_capabilities,
+			15.0)))
+		if enc == nil {
+			return 0
+		}
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedNumber((*C.char)(unsafe.Pointer(enc)), (*C.char)(
+			unsafe.Pointer(pend)), &av_audioCodecs, r.m_fAudioCodecs)))
+		if enc == nil {
+			return 0
+		}
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedNumber((*C.char)(unsafe.Pointer(enc)), (*C.char)(
+			unsafe.Pointer(pend)), &av_videoCodecs, r.m_fVideoCodecs)))
+		if enc == nil {
+			return 0
+		}
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedNumber((*C.char)(unsafe.Pointer(enc)), (*C.char)(
+			unsafe.Pointer(pend)), &av_videoFunction, 1.0)))
+		if enc == nil {
+			return 0
+		}
+		if r.Link.pageUrl.av_len != 0 {
+			enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedString((*C.char)(unsafe.Pointer(enc)), (*C.char)(
+				unsafe.Pointer(pend)), &av_pageUrl, &r.Link.pageUrl)))
+			if enc == nil {
+				return 0
+			}
+		}
+	}
+
+	if r.m_fEncoding != 0.0 || r.m_bSendEncoding != 0 {
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeNamedNumber((*C.char)(unsafe.Pointer(enc)), (*C.char)(
+			unsafe.Pointer(pend)), &av_objectEncoding, r.m_fEncoding)))
+		if enc == nil {
+			return 0
+		}
+	}
+
+	if int(uintptr(incBytePtr(unsafe.Pointer(enc), 3))) >= int(uintptr(
+		unsafe.Pointer(pend))) {
+		return 0
+	}
+
+	*indxBytePtr(unsafe.Pointer(enc), 0) = 0
+	enc = (*byte)(incBytePtr(unsafe.Pointer(enc), 1))
+	*indxBytePtr(unsafe.Pointer(enc), 0) = 0
+	enc = (*byte)(incBytePtr(unsafe.Pointer(enc), 1))
+	*indxBytePtr(unsafe.Pointer(enc), 0) = C.AMF_OBJECT_END
+	enc = (*byte)(incBytePtr(unsafe.Pointer(enc), 1))
+
+	/* add auth string */
+	if r.Link.auth.av_len != 0 {
+		// TODO: port this
+		enc = (*byte)(unsafe.Pointer(C.AMF_EncodeBoolean((*C.char)(unsafe.Pointer(enc)), (*C.char)(
+			unsafe.Pointer(pend)), r.Link.lFlags&RTMP_LF_AUTH)))
+		if enc == nil {
+			return 0
+		}
+		enc = afmEncodeString(enc, (*byte)(pend), &r.Link.auth)
+		if enc == nil {
+			return 0
+		}
+	}
+
+	if r.Link.extras.o_num != 0 {
+		for i := 0; i < int(r.Link.extras.o_num); i++ {
+			enc = (*byte)(unsafe.Pointer(C.AMFProp_Encode((*C.AMFObjectProperty)(
+				incPtr(unsafe.Pointer(&r.Link.extras.o_props), int(unsafe.Sizeof(
+					r.Link.extras.o_props)), i)), (*C.char)(unsafe.Pointer(enc)), (*C.char)(
+				unsafe.Pointer(pend)))))
+
+			if enc == nil {
+				return 0
+			}
+		}
+	}
+
+	packet.m_nBodySize = C.uint32_t(int(uintptr(decBytePtr(unsafe.Pointer(enc), int(uintptr(
+		unsafe.Pointer(packet.m_body)))))))
+
+	return sendPacket(r, &packet, 1)
 }
 
 func rtmpConnectStream(r *C.RTMP, seekTime int32) int {