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/*
* Copyright (C) 2003-2006 Gabest
* http://www.gabest.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#pragma once
typedef struct {
const GUID* subtype;
WORD biPlanes;
WORD biBitCount;
DWORD biCompression;
} VIDEO_OUTPUT_FORMATS;
class CBaseVideoFilter : public CTransformFilter
{
private:
HRESULT Receive(IMediaSample* pIn);
// these are private for a reason, don't bother them
int m_win, m_hin, m_arxin, m_aryin;
int m_wout, m_hout, m_arxout, m_aryout;
long m_cBuffers;
protected:
CCritSec m_csReceive;
int m_w, m_h, m_arx, m_ary;
HRESULT GetDeliveryBuffer(int w, int h, IMediaSample** ppOut);
HRESULT CopyBuffer(BYTE* pOut, BYTE* pIn, int w, int h, int pitchIn, const GUID& subtype, bool fInterlaced = false);
HRESULT CopyBuffer(BYTE* pOut, BYTE** ppIn, int w, int h, int pitchIn, const GUID& subtype, bool fInterlaced = false);
virtual void GetOutputSize(int& w, int& h, int& arx, int& ary, int &RealWidth, int &RealHeight) {}
virtual HRESULT Transform(IMediaSample* pIn) = 0;
virtual bool IsVideoInterlaced() {
return false;
}
virtual void GetOutputFormats (int& nNumber, VIDEO_OUTPUT_FORMATS** ppFormats);
public:
CBaseVideoFilter(TCHAR* pName, LPUNKNOWN lpunk, HRESULT* phr, REFCLSID clsid, long cBuffers = 1);
virtual ~CBaseVideoFilter();
HRESULT ReconnectOutput(int w, int h, bool bSendSample = true, int realWidth = -1, int realHeight = -1);
int GetPinCount();
CBasePin* GetPin(int n);
HRESULT CheckInputType(const CMediaType* mtIn);
HRESULT CheckOutputType(const CMediaType& mtOut);
HRESULT CheckTransform(const CMediaType* mtIn, const CMediaType* mtOut);
HRESULT DecideBufferSize(IMemAllocator* pAllocator, ALLOCATOR_PROPERTIES* pProperties);
HRESULT GetMediaType(int iPosition, CMediaType* pMediaType);
HRESULT SetMediaType(PIN_DIRECTION dir, const CMediaType* pmt);
void SetAspect(CSize aspect);
};
class CBaseVideoInputAllocator : public CMemAllocator
{
CMediaType m_mt;
public:
CBaseVideoInputAllocator(HRESULT* phr);
void SetMediaType(const CMediaType& mt);
STDMETHODIMP GetBuffer(IMediaSample** ppBuffer, REFERENCE_TIME* pStartTime, REFERENCE_TIME* pEndTime, DWORD dwFlags);
};
class CBaseVideoInputPin : public CTransformInputPin
{
CBaseVideoInputAllocator* m_pAllocator;
public:
CBaseVideoInputPin(TCHAR* pObjectName, CBaseVideoFilter* pFilter, HRESULT* phr, LPCWSTR pName);
~CBaseVideoInputPin();
STDMETHODIMP GetAllocator(IMemAllocator** ppAllocator);
STDMETHODIMP ReceiveConnection(IPin* pConnector, const AM_MEDIA_TYPE* pmt);
};
class CBaseVideoOutputPin : public CTransformOutputPin
{
public:
CBaseVideoOutputPin(TCHAR* pObjectName, CBaseVideoFilter* pFilter, HRESULT* phr, LPCWSTR pName);
HRESULT CheckMediaType(const CMediaType* mtOut);
};
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