outputpin.cpp

This site include optimized H.264 baseline codec, SF IP Box Binary. PC version and TI DM6437 version

/***************************************************************************************	
*	Directshow Filter Integrateion source code is developped by Mr. Xie Haijun.
*
*	DHCODEC is authorized to use this code for free.
*
*	Date: 2007-April-02.
*
*****************************************************************************************/
// OutputPin.cpp: implementation of the COutputPin class.
//
//////////////////////////////////////////////////////////////////////

#include "OutputPin.h"
#include "MyFilter.h"
#include "guid.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

COutputPin::COutputPin(CArbitrateFilter *pFilter,HRESULT *phr)
           :CBaseOutputPin(NAME("Net_Stream"),pFilter,&pFilter->mFilterLock,phr, L"s264压缩数据")
{
	pMyFilter=pFilter;
}

COutputPin::~COutputPin()
{
}

HRESULT COutputPin::CheckMediaType(const CMediaType *mtIn)
{
    ASSERT(pMyFilter->mInputPin != NULL);

/*  if ((pMyFilter->mInputPin->IsConnected() == FALSE))
	{
	    return E_INVALIDARG;
    }
*/

    CheckPointer(mtIn,E_POINTER);

    // Check this is a VIDEOINFO type

    if(*mtIn->FormatType() != FORMAT_s264CodeInfo)
    {
        return E_INVALIDARG;
    }

    // Is this a palettised format

    if((IsEqualGUID(*mtIn->Type(), MEDIATYPE_s264Code)) &&
       (IsEqualGUID(*mtIn->Subtype(), MEDIASUBTYPE_s264Code)))
    {
//		MessageBox(NULL,"CheckMediaType success",NULL,NULL);
		return NOERROR;
    }

//	MessageBox(NULL,"CheckMediaType fail",NULL,NULL);

    return E_FAIL;
}

HRESULT COutputPin::DecideBufferSize(IMemAllocator *pAlloc,ALLOCATOR_PROPERTIES * pprop)
{
//	MessageBox(NULL,"DecideBufferSize",NULL,NULL);

	pprop->cbBuffer=320*240*3/2;
	pprop->cBuffers=1;
	pprop->cbAlign=1;

	ALLOCATOR_PROPERTIES Actual;

	HRESULT hr=pAlloc->SetProperties(pprop,&Actual);

	return hr;


    return NOERROR;
}

HRESULT COutputPin::GetMediaType(int iPosition,CMediaType *pMediaType)
{
    if(iPosition < 0)
    {
        return E_INVALIDARG;
    }

    if(iPosition > 0)
    {
        return VFW_S_NO_MORE_ITEMS;
    }

    CheckPointer(pMediaType,E_POINTER);

    
    pMediaType->SetFormatType(&FORMAT_s264CodeInfo);
	pMediaType->SetType(&MEDIATYPE_s264Code);
	pMediaType->SetSubtype(&MEDIASUBTYPE_s264Code);


    return NOERROR;
}

STDMETHODIMP COutputPin::NonDelegatingQueryInterface(REFIID riid,void **ppv)
{
	CheckPointer(ppv,E_POINTER);

	
    return CBaseOutputPin::NonDelegatingQueryInterface(riid, ppv);
}