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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 SOURCERESOLVER_H
#define SOURCERESOLVER_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 "mfstream_p.h"
#include <QUrl>
QT_BEGIN_NAMESPACE
class SourceResolver: public QObject, public IMFAsyncCallback
{
Q_OBJECT
public:
SourceResolver();
~SourceResolver();
STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject) override;
STDMETHODIMP_(ULONG) AddRef(void) override;
STDMETHODIMP_(ULONG) Release(void) override;
HRESULT STDMETHODCALLTYPE Invoke(IMFAsyncResult *pAsyncResult) override;
HRESULT STDMETHODCALLTYPE GetParameters(DWORD*, DWORD*) override;
void load(const QUrl &url, QIODevice* stream);
void cancel();
void shutdown();
IMFMediaSource* mediaSource() const;
Q_SIGNALS:
void error(long hr);
void mediaSourceReady();
private:
class State : public IUnknown
{
public:
State(IMFSourceResolver *sourceResolver, bool fromStream);
virtual ~State();
STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject) override;
STDMETHODIMP_(ULONG) AddRef(void) override;
STDMETHODIMP_(ULONG) Release(void) override;
IMFSourceResolver* sourceResolver() const;
bool fromStream() const;
private:
long m_cRef;
IMFSourceResolver *m_sourceResolver;
bool m_fromStream;
};
long m_cRef;
IUnknown *m_cancelCookie;
IMFSourceResolver *m_sourceResolver;
IMFMediaSource *m_mediaSource;
MFStream *m_stream;
QMutex m_mutex;
};
QT_END_NAMESPACE
#endif
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