diff --git a/rtmp/amf.go b/rtmp/amf.go
index c3f149c6..f6075907 100644
--- a/rtmp/amf.go
+++ b/rtmp/amf.go
@@ -325,8 +325,7 @@ func C_AMF_PropEncode(p *C_AMFObjectProperty, dst []byte) *byte {
 	case AMF_ECMA_ARRAY:
 		pBuffer = C_AMF_EncodeEcmaArray(&p.p_vu.p_object, dst)
 	case AMF_STRICT_ARRAY:
-		b, e := b2pp(dst)
-		pBuffer = C_AMF_EncodeArray(&p.p_vu.p_object, b, e)
+		pBuffer = C_AMF_EncodeArray(&p.p_vu.p_object, dst)
 	default:
 		log.Println("C_AMF_PropEncode: invalid type!")
 		pBuffer = nil
@@ -616,16 +615,17 @@ func C_AMF_EncodeEcmaArray(obj *C_AMFObject, dst []byte) *byte {
 
 // char* AMF_EncodeArray(AMFObject* obj, char* pBuffer, char* pBufEnd);
 // amf.c +959
-func C_AMF_EncodeArray(obj *C_AMFObject, pBuffer *byte, pBufEnd *byte) *byte {
-	if int(uintptr(unsafe.Pointer(pBuffer)))+4 >= int(uintptr(unsafe.Pointer(pBufEnd))) {
+func C_AMF_EncodeArray(obj *C_AMFObject, dst []byte) *byte {
+	if len(dst) < 5 {
 		return nil
 	}
 
-	*pBuffer = AMF_STRICT_ARRAY
-	pBuffer = (*byte)(incBytePtr(unsafe.Pointer(pBuffer), 1))
-
-	pBuffer = C_AMF_EncodeInt32(pp2b(pBuffer, pBufEnd), int32(len(obj.o_props)))
+	dst[0] = AMF_STRICT_ARRAY
+	dst = dst[1:]
+	binary.BigEndian.PutUint32(dst[:4], uint32(len(obj.o_props)))
+	dst = dst[4:]
 
+	pBuffer, pBufEnd := b2pp(dst)
 	for i := 0; i < len(obj.o_props); i++ {
 		res := C_AMF_PropEncode(&obj.o_props[i], pp2b(pBuffer, pBufEnd))
 		if res == nil {