From 9511d613711e88792645e6fc13a3089c98987865 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Thu, 16 Jun 2022 01:15:37 +0200
Subject: [PATCH] Add comment about meaning of iTunes rating values

---
 mp4/mp4tagfield.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mp4/mp4tagfield.cpp b/mp4/mp4tagfield.cpp
index 43174b4..97f6589 100644
--- a/mp4/mp4tagfield.cpp
+++ b/mp4/mp4tagfield.cpp
@@ -347,7 +347,7 @@ std::vector<std::uint32_t> Mp4TagField::expectedRawDataTypes() const
         res.push_back(RawDataType::Reserved);
         break;
     case Bpm:
-    case Rating:
+    case Rating: // 0 = None, 1 = Explicit, 2 = Clean
         res.push_back(RawDataType::BeSignedInt);
         res.push_back(RawDataType::BeUnsignedInt);
         break;