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/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_SINK_FILTER_DS_H_
#define WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_SINK_FILTER_DS_H_
#include <Streams.h> // Include base DS filter header files
#include "webrtc/modules/video_capture/include/video_capture_defines.h"
namespace webrtc
{
namespace videocapturemodule
{
//forward declaration
class CaptureSinkFilter;
/**
* input pin for camera input
*
*/
class CaptureInputPin: public CBaseInputPin
{
public:
int32_t _moduleId;
VideoCaptureCapability _requestedCapability;
VideoCaptureCapability _resultingCapability;
HANDLE _threadHandle;
CaptureInputPin(int32_t moduleId,
IN TCHAR* szName,
IN CaptureSinkFilter* pFilter,
IN CCritSec * pLock,
OUT HRESULT * pHr,
IN LPCWSTR pszName);
virtual ~CaptureInputPin();
HRESULT GetMediaType (IN int iPos, OUT CMediaType * pmt);
HRESULT CheckMediaType (IN const CMediaType * pmt);
STDMETHODIMP Receive (IN IMediaSample *);
HRESULT SetMatchingMediaType(const VideoCaptureCapability& capability);
};
class CaptureSinkFilter: public CBaseFilter
{
public:
CaptureSinkFilter(IN TCHAR * tszName,
IN LPUNKNOWN punk,
OUT HRESULT * phr,
VideoCaptureExternal& captureObserver,
int32_t moduleId);
virtual ~CaptureSinkFilter();
// --------------------------------------------------------------------
// class methods
void ProcessCapturedFrame(unsigned char* pBuffer, size_t length,
const VideoCaptureCapability& frameInfo);
// explicit receiver lock aquisition and release
void LockReceive() { m_crtRecv.Lock();}
void UnlockReceive() {m_crtRecv.Unlock();}
// explicit filter lock aquisition and release
void LockFilter() {m_crtFilter.Lock();}
void UnlockFilter() { m_crtFilter.Unlock(); }
void SetFilterGraph(IGraphBuilder* graph); // Used if EVR
// --------------------------------------------------------------------
// COM interfaces
DECLARE_IUNKNOWN ;
STDMETHODIMP SetMatchingMediaType(const VideoCaptureCapability& capability);
// --------------------------------------------------------------------
// CBaseFilter methods
int GetPinCount ();
CBasePin * GetPin ( IN int Index);
STDMETHODIMP Pause ();
STDMETHODIMP Stop ();
STDMETHODIMP GetClassID ( OUT CLSID * pCLSID);
// --------------------------------------------------------------------
// class factory calls this
static CUnknown * CreateInstance (IN LPUNKNOWN punk, OUT HRESULT * phr);
private:
CCritSec m_crtFilter; // filter lock
CCritSec m_crtRecv; // receiver lock; always acquire before filter lock
CaptureInputPin * m_pInput;
VideoCaptureExternal& _captureObserver;
int32_t _moduleId;
};
} // namespace videocapturemodule
} // namespace webrtc
#endif // WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_SINK_FILTER_DS_H_
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