From 6031cd1cc95fe1f28c43b0baa6c1431304698241 Mon Sep 17 00:00:00 2001
From: nareix <hi.nareix@gmail.com>
Date: Thu, 28 Jul 2016 23:06:50 +0800
Subject: [PATCH] avutil: bugfix

---
 av/avutil/avutil.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/av/avutil/avutil.go b/av/avutil/avutil.go
index e4a2085..e18cb06 100644
--- a/av/avutil/avutil.go
+++ b/av/avutil/avutil.go
@@ -38,10 +38,10 @@ func (self *HandlerMuxer) WriteHeader(streams []av.CodecData) (err error) {
 
 func (self *HandlerMuxer) WriteTrailer() (err error) {
 	if self.stage == 1 {
+		self.stage++
 		if err = self.Muxer.WriteTrailer(); err != nil {
 			return
 		}
-		self.stage++
 	}
 	return
 }