UI: Add MP4 to remuxable extensions

UI/window-remux.cpp

@@ -205,8 +205,7 @@ void RemuxEntryPathItemDelegate::paint(QPainter *painter,
 
 void RemuxEntryPathItemDelegate::handleBrowse(QWidget *container)
 {
-	QString OutputPattern = "(*.mp4 *.flv *.mov *.mkv *.ts *.m3u8)";
-	QString InputPattern = "(*.flv *.mov *.mkv *.ts *.m3u8)";
+	QString ExtensionPattern = "(*.mp4 *.flv *.mov *.mkv *.ts *.m3u8)";
 
 	QLineEdit *text = container->findChild<QLineEdit *>();
 
@@ -218,7 +217,7 @@ void RemuxEntryPathItemDelegate::handleBrowse(QWidget *container)
 	if (isOutput) {
 		QString newPath = SaveFile(container,
 					   QTStr("Remux.SelectTarget"),
-					   currentPath, OutputPattern);
+					   currentPath, ExtensionPattern);
 
 		if (!newPath.isEmpty()) {
 			container->setProperty(PATH_LIST_PROP,
@@ -229,7 +228,7 @@ void RemuxEntryPathItemDelegate::handleBrowse(QWidget *container)
 		QStringList paths = OpenFiles(
 			container, QTStr("Remux.SelectRecording"), currentPath,
 			QTStr("Remux.OBSRecording") + QString(" ") +
-				InputPattern);
+				ExtensionPattern);
 
 		if (!paths.empty()) {
 			container->setProperty(PATH_LIST_PROP, paths);