mfaudiodecodercontrol_p.h

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// Copyright (C) 2016 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 MFAUDIODECODERCONTROL_H

#define MFAUDIODECODERCONTROL_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 <decoder/mfdecodersourcereader_p.h>

#include <sourceresolver_p.h>

#include <QtMultimedia/private/qplatformaudiodecoder_p.h>

#include <QtMultimedia/private/qwindowsresampler_p.h>

QT_BEGIN_NAMESPACE

class MFAudioDecoderControl : public QPlatformAudioDecoder

    Q_OBJECT

public:

    MFAudioDecoderControl(QAudioDecoder *parent);

    ~MFAudioDecoderControl() override;

    QUrl source() const override { return m_source; }

    void setSource(const QUrl &fileName) override;

    QIODevice* sourceDevice() const override { return m_device; }

    void setSourceDevice(QIODevice *device) override;

    void start() override;

    void stop() override;

    QAudioFormat audioFormat() const override { return m_outputFormat; }

    void setAudioFormat(const QAudioFormat &format) override;

    QAudioBuffer read() override;

    bool bufferAvailable() const override { return m_audioBuffer.sampleCount() > 0; }

    bool canReadQrc() const override { return true; }

private Q_SLOTS:

    void handleMediaSourceReady();

    void handleMediaSourceError(long hr);

    void handleNewSample(ComPtr<IMFSample>);

    void handleSourceFinished();

private:

    void startReadingSource(const ComPtr<IMFMediaSource> &source);

    std::unique_ptr<MFDecoderSourceReader> m_decoderSourceReader;

    ComPtr<SourceResolver>  m_sourceResolver;

    QWindowsResampler       m_resampler;

    QUrl                    m_source;

    QIODevice              *m_device = nullptr;

    QAudioFormat            m_outputFormat;

    QAudioBuffer            m_audioBuffer;

    bool                    m_loadingSource = false;

    bool                    m_deferredStart = false;

};

QT_END_NAMESPACE

#endif//MFAUDIODECODERCONTROL_H