| 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 | #ifndef QFFMPEGAUDIOINPUT_H |
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| 4 | #define QFFMPEGAUDIOINPUT_H |
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| 5 | |
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| 6 | // |
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| 7 | // W A R N I N G |
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| 8 | // ------------- |
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| 9 | // |
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| 10 | // This file is not part of the Qt API. It exists purely as an |
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| 11 | // implementation detail. This header file may change from version to |
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| 12 | // version without notice, or even be removed. |
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| 13 | // |
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| 14 | // We mean it. |
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| 15 | // |
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| 16 | |
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| 17 | #include <QtMultimedia/qaudioinput.h> |
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| 18 | #include <QtMultimedia/private/qplatformaudioinput_p.h> |
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| 19 | #include <QtMultimedia/private/qplatformaudiobufferinput_p.h> |
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| 20 | #include <QtFFmpegMediaPluginImpl/private/qffmpegthread_p.h> |
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| 21 | |
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| 22 | QT_BEGIN_NAMESPACE |
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| 23 | |
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| 24 | namespace QFFmpeg { |
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| 25 | class AudioSourceIO; |
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| 26 | } // namespace QFFmpeg |
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| 27 | |
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| 28 | constexpr int DefaultAudioInputBufferSize = 4096; |
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| 29 | |
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| 30 | class QFFmpegAudioInput : public QAudioBufferSource, public QPlatformAudioInput |
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| 31 | { |
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| 32 | // for qobject_cast |
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| 33 | Q_OBJECT |
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| 34 | public: |
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| 35 | explicit QFFmpegAudioInput(QAudioInput *qq); |
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| 36 | ~QFFmpegAudioInput() override; |
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| 37 | |
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| 38 | void setAudioDevice(const QAudioDevice &/*device*/) override; |
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| 39 | void setMuted(bool /*muted*/) override; |
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| 40 | void setVolume(float /*volume*/) override; |
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| 41 | |
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| 42 | void setBufferSize(int bufferSize); |
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| 43 | |
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| 44 | int bufferSize() const; |
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| 45 | |
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| 46 | protected: |
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| 47 | // ensures the underlying audio source is run if |
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| 48 | // the signal newAudioBuffer is connected |
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| 49 | void connectNotify(const QMetaMethod &signal) override; |
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| 50 | |
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| 51 | // postponly ensures that the underlying audio source is not run |
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| 52 | // if the signal newAudioBuffer is not connacted to any slot. |
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| 53 | void disconnectNotify(const QMetaMethod &signal) override; |
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| 54 | |
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| 55 | private: |
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| 56 | QFFmpeg::AudioSourceIO *m_audioIO = nullptr; |
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| 57 | std::unique_ptr<QThread> m_inputThread; |
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| 58 | }; |
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| 59 | |
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| 60 | QT_END_NAMESPACE |
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| 61 | |
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| 62 | |
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| 63 | #endif // QPLATFORMAUDIOINPUT_H |
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| 64 | |
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