From 5f4a22fb98f339d3b87d1494dacf507483cf81dd Mon Sep 17 00:00:00 2001
From: nareix <hi.nareix@gmail.com>
Date: Tue, 7 Jun 2016 18:13:25 +0800
Subject: [PATCH] add ChannelLayout.String()

---
 av.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/av.go b/av.go
index 495aecc..299f0fa 100644
--- a/av.go
+++ b/av.go
@@ -1,5 +1,9 @@
 package av
 
+import (
+	"fmt"
+)
+
 type SampleFormat int
 
 const (
@@ -69,6 +73,10 @@ func (self SampleFormat) IsPlanar() bool {
 
 type ChannelLayout uint64
 
+func (self ChannelLayout) String() string {
+	return fmt.Sprintf("%dch", self.Count())
+}
+
 const (
 	CH_FRONT_CENTER = ChannelLayout(1<<iota)
 	CH_FRONT_LEFT