Revision control
++ // 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