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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 MFTRANSFORM_H
#define MFTRANSFORM_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 <mfapi.h>
#include <mfidl.h>
#include <QtCore/qlist.h>
#include <QtCore/qmutex.h>
#include <QtMultimedia/qvideoframeformat.h>
QT_BEGIN_NAMESPACE
class MFVideoProbeControl;
class QVideoFrame;
class MFTransform: public IMFTransform
{
public:
MFTransform();
virtual ~MFTransform();
void addProbe(MFVideoProbeControl* probe);
void removeProbe(MFVideoProbeControl* probe);
void setVideoSink(IUnknown *videoSink);
// IUnknown methods
STDMETHODIMP QueryInterface(REFIID iid, void** ppv) override;
STDMETHODIMP_(ULONG) AddRef() override;
STDMETHODIMP_(ULONG) Release() override;
// IMFTransform methods
STDMETHODIMP GetStreamLimits(DWORD *pdwInputMinimum, DWORD *pdwInputMaximum, DWORD *pdwOutputMinimum, DWORD *pdwOutputMaximum) override;
STDMETHODIMP GetStreamCount(DWORD *pcInputStreams, DWORD *pcOutputStreams) override;
STDMETHODIMP GetStreamIDs(DWORD dwInputIDArraySize, DWORD *pdwInputIDs, DWORD dwOutputIDArraySize, DWORD *pdwOutputIDs) override;
STDMETHODIMP GetInputStreamInfo(DWORD dwInputStreamID, MFT_INPUT_STREAM_INFO *pStreamInfo) override;
STDMETHODIMP GetOutputStreamInfo(DWORD dwOutputStreamID, MFT_OUTPUT_STREAM_INFO *pStreamInfo) override;
STDMETHODIMP GetAttributes(IMFAttributes **pAttributes) override;
STDMETHODIMP GetInputStreamAttributes(DWORD dwInputStreamID, IMFAttributes **pAttributes) override;
STDMETHODIMP GetOutputStreamAttributes(DWORD dwOutputStreamID, IMFAttributes **pAttributes) override;
STDMETHODIMP DeleteInputStream(DWORD dwStreamID) override;
STDMETHODIMP AddInputStreams(DWORD cStreams, DWORD *adwStreamIDs) override;
STDMETHODIMP GetInputAvailableType(DWORD dwInputStreamID, DWORD dwTypeIndex, IMFMediaType **ppType) override;
STDMETHODIMP GetOutputAvailableType(DWORD dwOutputStreamID,DWORD dwTypeIndex, IMFMediaType **ppType) override;
STDMETHODIMP SetInputType(DWORD dwInputStreamID, IMFMediaType *pType, DWORD dwFlags) override;
STDMETHODIMP SetOutputType(DWORD dwOutputStreamID, IMFMediaType *pType, DWORD dwFlags) override;
STDMETHODIMP GetInputCurrentType(DWORD dwInputStreamID, IMFMediaType **ppType) override;
STDMETHODIMP GetOutputCurrentType(DWORD dwOutputStreamID, IMFMediaType **ppType) override;
STDMETHODIMP GetInputStatus(DWORD dwInputStreamID, DWORD *pdwFlags) override;
STDMETHODIMP GetOutputStatus(DWORD *pdwFlags) override;
STDMETHODIMP SetOutputBounds(LONGLONG hnsLowerBound, LONGLONG hnsUpperBound) override;
STDMETHODIMP ProcessEvent(DWORD dwInputStreamID, IMFMediaEvent *pEvent) override;
STDMETHODIMP ProcessMessage(MFT_MESSAGE_TYPE eMessage, ULONG_PTR ulParam) override;
STDMETHODIMP ProcessInput(DWORD dwInputStreamID, IMFSample *pSample, DWORD dwFlags) override;
STDMETHODIMP ProcessOutput(DWORD dwFlags, DWORD cOutputBufferCount, MFT_OUTPUT_DATA_BUFFER *pOutputSamples, DWORD *pdwStatus) override;
private:
HRESULT OnFlush();
static QVideoFrameFormat videoFormatForMFMediaType(IMFMediaType *mediaType, int *bytesPerLine);
QVideoFrame makeVideoFrame();
QByteArray dataFromBuffer(IMFMediaBuffer *buffer, int height, int *bytesPerLine);
bool isMediaTypeSupported(IMFMediaType *type);
long m_cRef;
IMFMediaType *m_inputType;
IMFMediaType *m_outputType;
IMFSample *m_sample;
QMutex m_mutex;
IMFMediaTypeHandler *m_videoSinkTypeHandler;
// QList<MFVideoProbeControl*> m_videoProbes;
QMutex m_videoProbeMutex;
QVideoFrameFormat m_format;
int m_bytesPerLine;
};
QT_END_NAMESPACE
#endif
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