From 00969df06f67b5378932e0a84b40b3700968ca92 Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Tue, 13 Nov 2018 23:32:45 +0300
Subject: [PATCH] Made isAudioFile() check more strictly. Thanks John Preston.

---
 Telegram/SourceFiles/data/data_document.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/data/data_document.cpp b/Telegram/SourceFiles/data/data_document.cpp
index 06b1da9e6..4c9a0bbef 100644
--- a/Telegram/SourceFiles/data/data_document.cpp
+++ b/Telegram/SourceFiles/data/data_document.cpp
@@ -1292,7 +1292,13 @@ bool DocumentData::isAudioFile() const {
 	} else if (isSong()) {
 		return true;
 	}
-	return _mimeString.startsWith(qstr("audio/"), Qt::CaseInsensitive);
+	const auto prefix = qstr("audio/");
+	if (!_mimeString.startsWith(prefix, Qt::CaseInsensitive)) {
+		return false;
+	}
+	const auto left = _mimeString.midRef(prefix.size()).toString();
+	const auto types = { qstr("x-wav"), qstr("wav"), qstr("mp4") };
+	return ranges::find(types, left) != end(types);
 }
 
 bool DocumentData::isSharedMediaMusic() const {