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//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
#ifndef SIMPLEMEDIASTREAM_H
#define SIMPLEMEDIASTREAM_H
#include "SimpleMediaSource.h"
namespace winrt::WindowsSample::implementation
{
struct SimpleMediaStream : winrt::implements<SimpleMediaStream, IMFMediaStream2>
{
friend struct SimpleMediaSource;
public:
// IMFMediaEventGenerator
IFACEMETHODIMP BeginGetEvent(IMFAsyncCallback* pCallback, IUnknown* punkState) override;
IFACEMETHODIMP EndGetEvent(IMFAsyncResult* pResult, IMFMediaEvent** ppEvent) override;
IFACEMETHODIMP GetEvent(DWORD dwFlags, IMFMediaEvent** ppEvent) override;
IFACEMETHODIMP QueueEvent(MediaEventType met, REFGUID guidExtendedType, HRESULT hrStatus, const PROPVARIANT* pvValue) override;
// IMFMediaStream
IFACEMETHODIMP GetMediaSource(IMFMediaSource** ppMediaSource) override;
IFACEMETHODIMP GetStreamDescriptor(IMFStreamDescriptor** ppStreamDescriptor) override;
IFACEMETHODIMP RequestSample(IUnknown* pToken) override;
// IMFMediaStream2
IFACEMETHODIMP SetStreamState(_In_ MF_STREAM_STATE state) override;
IFACEMETHODIMP GetStreamState(_Out_ MF_STREAM_STATE* pState) override;
// Non-interface methods.
HRESULT Initialize(_In_ SimpleMediaSource* pSource, _In_ DWORD streamId, _In_ MFSampleAllocatorUsage allocatorUsage);
HRESULT Start();
HRESULT Stop();
HRESULT Shutdown();
HRESULT SetSampleAllocator(_In_ IMFVideoSampleAllocator* pAllocator);
DWORD Id() const { return m_dwStreamId; }
MFSampleAllocatorUsage SampleAlloactorUsage() const { return m_allocatorUsage; }
void SetRGBMask(ULONG rgbMask) { winrt::slim_lock_guard lock(m_Lock); m_rgbMask = rgbMask; }
ULONG GetRGBMask() { winrt::slim_lock_guard lock(m_Lock); return m_rgbMask; }
protected:
HRESULT _CheckShutdownRequiresLock();
HRESULT _SetStreamAttributes(IMFAttributes* pAttributeStore);
HRESULT _SetStreamDescriptorAttributes(IMFAttributes* pAttributeStore);
private:
winrt::slim_mutex m_Lock;
wil::com_ptr_nothrow<IMFMediaSource> m_parent;
wil::com_ptr_nothrow<IMFMediaEventQueue> m_spEventQueue;
wil::com_ptr_nothrow<IMFAttributes> m_spAttributes;
wil::com_ptr_nothrow<IMFStreamDescriptor> m_spStreamDesc;
wil::com_ptr_nothrow<IMFVideoSampleAllocator> m_spSampleAllocator;
wistd::unique_ptr<SimpleFrameGenerator> m_spFrameGenerator;
bool m_bIsShutdown = false;
MF_STREAM_STATE m_streamState = MF_STREAM_STATE_STOPPED;
ULONG m_rgbMask = KSPROPERTY_SIMPLEMEDIASOURCE_CUSTOMCONTROL_COLORMODE_BLUE;
DWORD m_dwStreamId;
MFSampleAllocatorUsage m_allocatorUsage;
};
}
#endif
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