www.pudn.com > SetText.rar > ShowCameraName.cpp
//ShowCameraname.cpp
#include
#include
#include "ISetText.h"
#include
#include "ShowCameraname.h"
#pragma warning(disable: 4800)
const AMOVIESETUP_PIN psudSetTextPins[] =
{ { L"Input" // strName
, FALSE // bRendered
, FALSE // bOutput
, FALSE // bZero
, FALSE // bMany
, &CLSID_NULL // clsConnectsToFilter
, L"" // strConnectsToPin
, 0 // nTypes
, NULL // lpTypes
}
, { L"Output" // strName
, FALSE // bRendered
, TRUE // bOutput
, FALSE // bZero
, FALSE // bMany
, &CLSID_NULL // clsConnectsToFilter
, L"" // strConnectsToPin
, 0 // nTypes
, NULL // lpTypes
}
};
const AMOVIESETUP_FILTER sudSetText =
{ &CLSID_SetText // clsID
, L"ShowText " // strName
, MERIT_DO_NOT_USE // dwMerit
, 2 // nPins
, psudSetTextPins }; // lpPin
// Needed for the CreateInstance mechanism
CFactoryTemplate g_Templates[]=
{
{ L"ShowText"
, &CLSID_SetText
, CShowText::CreateInstance
, NULL
, &sudSetText }
};
int g_cTemplates = sizeof(g_Templates)/sizeof(g_Templates[0]);
STDAPI DllRegisterServer()
{
return AMovieDllRegisterServer2(TRUE);
}
STDAPI DllUnregisterServer()
{
return AMovieDllRegisterServer2(FALSE);
}
extern "C" BOOL WINAPI DllEntryPoint(HINSTANCE, ULONG, LPVOID);
BOOL APIENTRY DllMain(HANDLE hModule,
DWORD dwReason,
LPVOID lpReserved)
{
return DllEntryPoint((HINSTANCE)(hModule), dwReason, lpReserved);
}
//////////////////////////////////////////////////////////////////////
// ShowText Class
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CUnknown * WINAPI CShowText::CreateInstance(LPUNKNOWN lpunk, HRESULT *phr)
{
ASSERT(phr);
CUnknown *punk = new CShowText(lpunk,phr);
if (punk == NULL)
{
*phr = E_OUTOFMEMORY;
}
return punk;
}
CShowText::CShowText(LPUNKNOWN punk,HRESULT *phr)
: CTransInPlaceFilter(TEXT("ShowText"), punk, CLSID_SetText, phr),
m_nHeight(0),
m_nWidth(0),
m_DC(NULL),
m_DibSection(NULL),
m_OldObject(NULL),
m_bMotion(false),
m_bSchedule(false),
m_bShowTime(false),
m_bShowCameraName(false),
m_BrightnessValue(0),
ChageBrightState(0)
{
LOGBRUSH lb ;
lb.lbStyle = BS_SOLID;
lb.lbColor = RGB(0, 255, 0) ;
lb.lbHatch = HS_CROSS ;
m_hBrushMotion = CreateBrushIndirect(&lb);
ASSERT(m_hBrushMotion != NULL);
LOGBRUSH lb1;
lb1.lbStyle = BS_SOLID;
lb1.lbColor = RGB(255,0,0);
lb1.lbHatch = HS_CROSS;
m_hBrushSchedule = CreateBrushIndirect(&lb1);
ASSERT(m_hBrushSchedule != NULL);
}
CShowText::~CShowText()
{
if(m_hBrushSchedule)
{
DeleteObject(m_hBrushSchedule);
}
if (m_hBrushMotion)
{
DeleteObject(m_hBrushMotion);
}
if (m_OldObject)
{
SelectObject(m_DC,m_OldObject);
m_OldObject = NULL;
}
if (m_DC)
{
DeleteObject(m_DC);
m_DC = NULL;
}
if (m_DibSection)
{
DeleteObject(m_DibSection);
m_DibSection = NULL;
}
delete [] ImageStore;
}
STDMETHODIMP CShowText::NonDelegatingQueryInterface(REFIID riid, void ** ppv)
{
CheckPointer(ppv,E_POINTER);
if (riid ==IID_ISetText )
{
return GetInterface((ISetText *) this, ppv);
}
else if (riid == IID_ISetColor)
{
return GetInterface((ISetColor*)this,ppv);
}
else
{
return CTransInPlaceFilter::NonDelegatingQueryInterface(riid, ppv);
}
}
int CShowText::GetPinCount()
{
return 2;
}
CBasePin*CShowText::GetPin(IN int Index)
{
CAutoLock cAutoLock(&m_ShowTextLock);
return CTransInPlaceFilter::GetPin(Index);
}
HRESULT CShowText::Transform(IMediaSample *pSample)
{
CheckPointer(pSample,E_POINTER);
if (m_DibSection == NULL)
{
VIDEOINFO *pVI = (VIDEOINFO *)m_pInput->CurrentMediaType().Format();
CheckPointer(pVI,E_UNEXPECTED);
m_DibSection = CreateDIBSection(NULL,
(BITMAPINFO *)&pVI->bmiHeader,
DIB_RGB_COLORS,
&m_pDibBits,
NULL,
0);
if (!m_DibSection )
{
return E_FAIL;
}
HDC hdc = GetDC(NULL);
m_DC= CreateCompatibleDC(hdc);
if (!m_DC)
return E_FAIL;
ReleaseDC(NULL,hdc);
m_OldObject = SelectObject(m_DC,m_DibSection);
if (!m_OldObject)
return E_FAIL;
}
char *pBuffer;
pSample->GetPointer((LPBYTE*)&pBuffer);
long BufferLen = pSample->GetSize();
if (pBuffer[0] != 0)
{
memcpy(ImageStore,pBuffer,m_nWidth*m_nHeight *3);
// return NOERROR;
}
else
{
memcpy(pBuffer,ImageStore,m_nWidth*m_nHeight *3);
}
RGBTRIPLE *pBuffer2 = (RGBTRIPLE *)pBuffer;
if (ChageBrightState != 0)
{
for(int i = 0 ;i FormatType() != FORMAT_VideoInfo)
{
return E_INVALIDARG;
}
if (*mtIn->Type() != MEDIATYPE_Video)
{
return E_INVALIDARG;
}
if (*mtIn->Subtype() != MEDIASUBTYPE_RGB24)
{
return E_INVALIDARG;
}
VIDEOINFO *pVI = (VIDEOINFO *)mtIn->Format();
CheckPointer(pVI,E_POINTER);
if (pVI->bmiHeader.biBitCount!= 24)
{
return E_INVALIDARG;
}
if (pVI->bmiHeader.biHeight < 0 )
{
return E_INVALIDARG;
}
return NOERROR;
}
HRESULT CShowText::SetMediaType(PIN_DIRECTION pindir, const CMediaType *pMediaType)
{
CheckPointer(pMediaType,E_POINTER);
VIDEOINFO *pVI = (VIDEOINFO *)pMediaType->Format();
CheckPointer(pVI,E_POINTER);
m_nHeight = pVI->bmiHeader.biHeight;
m_nWidth = pVI->bmiHeader.biWidth;
ImageStore = new char[m_nHeight *m_nWidth *3];
return CTransInPlaceFilter::SetMediaType(pindir,pMediaType);
}
STDMETHODIMP CShowText::SetSchedule(bool bSchedule)
{
CAutoLock cAutoLock(&m_ShowTextLock);
if (m_bMotion)
{
m_bMotion = false;
}
m_bSchedule = bSchedule;
return NOERROR;
}
STDMETHODIMP CShowText::SetCameraName(char *CameraName)
{
CAutoLock cAutoLock(&m_ShowTextLock);
strcpy(m_CameraName,CameraName);
return NOERROR;
}
STDMETHODIMP CShowText::SetMotion(bool bMotion)
{
CAutoLock cAutoLock(&m_ShowTextLock);
if (m_bSchedule)
{
m_bSchedule = false;
}
m_bMotion = bMotion;
return NOERROR;
}
STDMETHODIMP CShowText::SetShowTime(bool bShowTime)
{
CAutoLock cAutoLock(&m_ShowTextLock);
m_bShowTime = bShowTime;
return NOERROR;
}
STDMETHODIMP CShowText::SetShowCameraName(bool bShowCameraName)
{
CAutoLock cAutoLock(&m_ShowTextLock);
m_bShowCameraName = bShowCameraName;
return NOERROR;
}
STDMETHODIMP CShowText::SetBrightness(int BrightnessValue)
{
CAutoLock cAutoLock(&m_ShowTextLock);
if (BrightnessValue>0)
{
ChageBrightState = 1;
}
else if(BrightnessValue<0)
{
ChageBrightState = 2;
}
else
{
ChageBrightState = 0;
}
m_BrightnessValue = BrightnessValue;
return NOERROR;
}
void CShowText::IncreateBrightness(RGBTRIPLE *pBufferBrightness)
{
if(pBufferBrightness->rgbtBlue+m_BrightnessValue>=255)
{
pBufferBrightness->rgbtBlue = 255;
}
else
{
pBufferBrightness->rgbtBlue+= m_BrightnessValue;
}
if (pBufferBrightness->rgbtGreen+ m_BrightnessValue >=255)
{
pBufferBrightness->rgbtGreen = 255;
}
else
{
pBufferBrightness->rgbtGreen += m_BrightnessValue;
}
if (pBufferBrightness->rgbtRed + m_BrightnessValue >= 255)
{
pBufferBrightness->rgbtRed = 255;
}
else
{
pBufferBrightness->rgbtRed += m_BrightnessValue;
}
}
void CShowText::DecreaseBrightness(RGBTRIPLE *pBufferBrightness)
{
if(pBufferBrightness->rgbtBlue+m_BrightnessValue<=0)
{
pBufferBrightness->rgbtBlue = 0;
}
else
{
pBufferBrightness->rgbtBlue+= m_BrightnessValue;
}
if (pBufferBrightness->rgbtGreen+ m_BrightnessValue <=0)
{
pBufferBrightness->rgbtGreen = 0;
}
else
{
pBufferBrightness->rgbtGreen += m_BrightnessValue;
}
if (pBufferBrightness->rgbtRed + m_BrightnessValue <=0)
{
pBufferBrightness->rgbtRed = 0;
}
else
{
pBufferBrightness->rgbtRed += m_BrightnessValue;
}
}