| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QPLATFORMAUDIODEVICES_H |
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| 5 | #define QPLATFORMAUDIODEVICES_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtCore/qlist.h> |
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| 19 | #include <QtCore/qobject.h> |
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| 20 | #include <QtMultimedia/private/qaudiodevice_p.h> |
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| 21 | #include <QtMultimedia/private/qcachedvalue_p.h> |
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| 22 | #include <QtMultimedia/private/qtmultimediaglobal_p.h> |
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| 23 | #include <memory> |
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| 24 | |
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| 25 | QT_BEGIN_NAMESPACE |
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| 26 | |
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| 27 | class QPlatformAudioSource; |
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| 28 | class QPlatformAudioSink; |
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| 29 | class QAudioFormat; |
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| 30 | |
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| 31 | class Q_MULTIMEDIA_EXPORT QPlatformAudioDevices : public QObject |
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| 32 | { |
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| 33 | Q_OBJECT |
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| 34 | |
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| 35 | QT_DEFINE_TAG_STRUCT(PrivateTag); |
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| 36 | |
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| 37 | public: |
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| 38 | QPlatformAudioDevices(); |
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| 39 | ~QPlatformAudioDevices() override; |
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| 40 | |
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| 41 | static std::unique_ptr<QPlatformAudioDevices> create(); |
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| 42 | |
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| 43 | QList<QAudioDevice> audioInputs() const; |
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| 44 | QList<QAudioDevice> audioOutputs() const; |
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| 45 | |
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| 46 | virtual QPlatformAudioSource *createAudioSource(const QAudioDevice &, const QAudioFormat &, |
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| 47 | QObject *parent); |
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| 48 | virtual QPlatformAudioSink *createAudioSink(const QAudioDevice &, const QAudioFormat &, |
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| 49 | QObject *parent); |
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| 50 | |
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| 51 | QPlatformAudioSource *audioInputDevice(const QAudioFormat &format, |
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| 52 | const QAudioDevice &deviceInfo, QObject *parent); |
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| 53 | QPlatformAudioSink *audioOutputDevice(const QAudioFormat &format, |
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| 54 | const QAudioDevice &deviceInfo, QObject *parent); |
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| 55 | |
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| 56 | virtual void prepareAudio(); |
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| 57 | |
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| 58 | void initVideoDevicesConnection(); |
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| 59 | virtual QLatin1String backendName() const { return QLatin1String{ "null" }; } |
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| 60 | |
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| 61 | protected: |
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| 62 | virtual QList<QAudioDevice> findAudioInputs() const { return {}; } |
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| 63 | virtual QList<QAudioDevice> findAudioOutputs() const { return {}; } |
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| 64 | |
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| 65 | void onAudioInputsChanged(); |
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| 66 | void onAudioOutputsChanged(); |
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| 67 | |
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| 68 | void updateAudioInputsCache(); |
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| 69 | void updateAudioOutputsCache(); |
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| 70 | |
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| 71 | Q_SIGNALS: |
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| 72 | void audioInputsChanged(PrivateTag); |
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| 73 | void audioOutputsChanged(PrivateTag); |
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| 74 | |
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| 75 | private: |
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| 76 | mutable QCachedValue<QList<QAudioDevice>> m_audioInputs; |
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| 77 | mutable QCachedValue<QList<QAudioDevice>> m_audioOutputs; |
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| 78 | }; |
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| 79 | |
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| 80 | QT_END_NAMESPACE |
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| 81 | |
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| 82 | |
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| 83 | #endif // QPLATFORMAUDIODEVICES_H |
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| 84 | |
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