diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index 33dec40b..7eaa2ad1 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -86,12 +86,22 @@ func (s *session) Open() error {
 	return nil
 }
 
+func (s *session) writeFrame(data []byte, dataLength uint) uint {
+	if !C.RTMP_IsConnected(rtmp) {
+		return 1
+	}
+	if !C.RTMP_Write(s.rtmp, (const char*)(*C.char)(unsafe.Pointer(&data[0])), C.uint(dataLength)) {
+		return 2
+	}
+	return 0
+}
+
 // Write writes a frame (flv tag) to the rtmp connection
 func (s *session) Write(data []byte) (int, error) {
 	if s.rtmp == nil {
 		return 0, Err(3)
 	}
-	ret := C.write_frame(s.rtmp, (*C.char)(unsafe.Pointer(&data[0])), C.uint(len(data)))
+	ret := s.writeFrame(data, len(data))
 	if ret != 0 {
 		return 0, Err(ret)
 	}