1 files changed, 57 insertions, 0 deletions
diff --git a/src/multimedia/qerrorinfo_p.h b/src/multimedia/qerrorinfo_p.h
new file mode 100644
index 000000000..6428cb00f
--- /dev/null
+++ b/src/multimedia/qerrorinfo_p.h
@@ -0,0 +1,57 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QERRORINFO_P_H
+#define QERRORINFO_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtMultimedia/qtmultimediaglobal.h>
+#include <QString>
+
+QT_BEGIN_NAMESPACE
+
+template <typename ErrorCode, ErrorCode NoError = ErrorCode::NoError>
+class QErrorInfo
+{
+public:
+    QErrorInfo(ErrorCode error = NoError, QString description = {})
+        : m_code(error), m_description(std::move(description))
+    {
+    }
+
+    template <typename Notifier>
+    void setAndNotify(ErrorCode code, QString description, Notifier &notifier)
+    {
+        const bool changed = code != m_code || description != m_description;
+
+        m_code = code;
+        m_description = std::move(description);
+
+        if (code != NoError)
+            emit notifier.errorOccurred(m_code, m_description);
+
+        if (changed)
+            emit notifier.errorChanged();
+    }
+
+    ErrorCode code() const { return m_code; }
+    QString description() const { return m_description; };
+
+private:
+    ErrorCode m_code;
+    QString m_description;
+};
+
+QT_END_NAMESPACE
+
+#endif // QERRORINFO_P_H