From 88cfd219e7e16306ac571bdb5d06abb5d37ae4e2 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Tue, 27 Mar 2018 10:58:13 +0900
Subject: [PATCH] mp3: Set finalizer for the stream

---
 audio/mp3/decode_notjs.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/audio/mp3/decode_notjs.go b/audio/mp3/decode_notjs.go
index 1450bb76a..27b949222 100644
--- a/audio/mp3/decode_notjs.go
+++ b/audio/mp3/decode_notjs.go
@@ -21,6 +21,8 @@
 package mp3
 
 import (
+	"runtime"
+
 	"github.com/hajimehoshi/go-mp3"
 
 	"github.com/hajimehoshi/ebiten/audio"
@@ -51,6 +53,7 @@ func (s *Stream) Seek(offset int64, whence int) (int64, error) {
 
 // Close is implementation of io.Closer's Close.
 func (s *Stream) Close() error {
+	runtime.SetFinalizer(s, nil)
 	if s.resampling != nil {
 		return s.resampling.Close()
 	}
@@ -84,8 +87,10 @@ func Decode(context *audio.Context, src audio.ReadSeekCloser) (*Stream, error) {
 	if d.SampleRate() != context.SampleRate() {
 		r = convert.NewResampling(d, d.Length(), d.SampleRate(), context.SampleRate())
 	}
-	return &Stream{
+	s := &Stream{
 		orig:       d,
 		resampling: r,
-	}, nil
+	}
+	runtime.SetFinalizer(s, (*Stream).Close)
+	return s, nil
 }