From bdac1c3ad1a72feeff68e9ef1a0e62cf86180012 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Mon, 8 May 2017 18:06:15 +0300
Subject: [PATCH] Fixed problem with looping of particular music tracks

Part of https://forum.zdoom.org/viewtopic.php?t=56333
---
 src/sound/musicformats/music_libsndfile.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sound/musicformats/music_libsndfile.cpp b/src/sound/musicformats/music_libsndfile.cpp
index d14c6b3ad..85b670a6b 100644
--- a/src/sound/musicformats/music_libsndfile.cpp
+++ b/src/sound/musicformats/music_libsndfile.cpp
@@ -339,7 +339,7 @@ bool SndFileSong::Read(SoundStream *stream, void *vbuff, int ilen, void *userdat
 		if (currentpos + framestoread > song->Loop_End)
 		{
 			size_t endblock = (song->Loop_End - currentpos) * song->Channels * 2;
-			size_t endlen = song->Decoder->read(buff, endblock);
+			size_t endlen = song->Decoder->read(buff, 0 == endblock ? len : endblock);
 			if (endlen != 0)
 			{
 				buff = buff + endlen;