QAudioDecoder: fix unit tests for GStreamer

When setting a QUrl with an empty scheme, we need to set the file://
pattern for uridecodebin. This has been done for QMediaPlayer in the
past, but not for QAudioDecoder. Compare:
8a3806f6263f56b5be5b557e321b9b13d1913d5f

To keep consistency with QMediaPlayer, we introduce a
QAudioDecoderPrivate class.

Pick-to: 6.5 6.7
Task-number: QTBUG-96985
Change-Id: If954a04a003aecb0f862a7e5041ead43e4c9d259
Reviewed-by: Artem Dyomin <artem.dyomin@qt.io>

1 files changed, 40 insertions, 0 deletions

diff --git a/src/multimedia/audio/qaudiodecoder_p.h b/src/multimedia/audio/qaudiodecoder_p.h
new file mode 100644
index 000000000..fa7311457
--- /dev/null
+++ b/src/multimedia/audio/qaudiodecoder_p.h
@@ -0,0 +1,40 @@
+// Copyright (C) 2024 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 QAUDIODECODER_P_H
+#define QAUDIODECODER_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 <QtCore/private/qobject_p.h>
+#include <QtMultimedia/private/qplatformaudiodecoder_p.h>
+
+#include <memory.h>
+
+QT_BEGIN_NAMESPACE
+
+class QAudioDecoder;
+
+class QAudioDecoderPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QAudioDecoder)
+
+public:
+    QAudioDecoderPrivate() = default;
+
+    QUrl unresolvedUrl;
+    std::unique_ptr<QPlatformAudioDecoder> decoder;
+};
+
+QT_END_NAMESPACE
+
+#endif // QAUDIODECODER_P_H