int cap_configure(cap_cx *cx, char *err) { CAPTUREPARMS params; if(capCaptureGetSetup(cx->hwnd, ¶ms, sizeof(params))) { params.fYield = TRUE; params.fCaptureAudio = FALSE; params.wPercentDropForError = 100; params.fMakeUserHitOKToCapture = FALSE; params.fAbortLeftMouse = FALSE; params.fAbortRightMouse = FALSE; params.vKeyAbort = 0; if(capCaptureSetSetup(cx->hwnd, ¶ms, sizeof(params))) { if(capSetCallbackOnVideoStream(cx->hwnd, cap_stream_cb)) { return 1; } } } set_err("Can't set capture settings"); return 0; }
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(); }
void VideoGrabber::Init() { mGrabNextFrame = FALSE; mPreviousFrameExists = FALSE; // Setup capture window and connect webcam driver camhwnd = capCreateCaptureWindow (_T("Ahtung!"), 0 , 0, 0, FRAME_WIDTH, FRAME_HEIGHT, 0, 0); SendMessage(camhwnd, WM_CAP_DRIVER_CONNECT, 0, 0); capSetCallbackOnFrame(camhwnd, FrameCallbackProc); capSetCallbackOnVideoStream(camhwnd, FrameCallbackProc); // Use same callback function, consider mGrabNextFrame flag! capSetUserData(camhwnd, this); // Callback functions may use pointer to this VideoGrabber if (mPreviousFrame != NULL) { delete[] mPreviousFrame; mPreviousFrame = NULL; } mMotionDetectedDuringLastSecond = FALSE; // TODO: Use MPEGLAYER3WAVEFORMAT instead this // Setup audio params WAVEFORMATEX wfex; wfex.wFormatTag = WAVE_FORMAT_PCM; wfex.nChannels = 1; // Use mono wfex.nSamplesPerSec = 8000; wfex.nAvgBytesPerSec = 8000; wfex.nBlockAlign = 1; wfex.wBitsPerSample = 8; wfex.cbSize = 0; capSetAudioFormat(camhwnd, &wfex, sizeof(WAVEFORMATEX)); // Setup video capturing and streaming CAPTUREPARMS parms; capCaptureGetSetup(camhwnd, &parms, sizeof(CAPTUREPARMS)); parms.fAbortLeftMouse = FALSE; parms.wPercentDropForError = 100; // Never abort capturing in case of dropped frames parms.fAbortRightMouse = FALSE; //parms.fLimitEnabled = TRUE; //parms.wTimeLimit = 0; // TODO! parms.fYield = TRUE; // TODO! capCaptureSetSetup(camhwnd, &parms, sizeof(parms)); // !!! capSetCallbackOnError(camhwnd, capErrorCallback); // Resume thread for motion detection mListenerHandle = CreateThread(0, 0, ListeningRoutine, this, CREATE_SUSPENDED, &mThreadID); SetEnabled(TRUE); ResumeThread(mListenerHandle); }
static int vfw_init (zbar_video_t *vdo, uint32_t fmt) { if(vfw_set_format(vdo, fmt)) return(-1); HWND hwnd = vdo->state->hwnd; CAPTUREPARMS cp; if(!capCaptureGetSetup(hwnd, &cp, sizeof(cp))) return(err_capture(vdo, SEV_ERROR, ZBAR_ERR_WINAPI, __func__, "retrieving capture parameters")); cp.dwRequestMicroSecPerFrame = 33333; cp.fMakeUserHitOKToCapture = 0; cp.wPercentDropForError = 90; cp.fYield = 1; cp.wNumVideoRequested = vdo->num_images; cp.fCaptureAudio = 0; cp.vKeyAbort = 0; cp.fAbortLeftMouse = 0; cp.fAbortRightMouse = 0; cp.fLimitEnabled = 0; if(!capCaptureSetSetup(hwnd, &cp, sizeof(cp))) return(err_capture(vdo, SEV_ERROR, ZBAR_ERR_WINAPI, __func__, "setting capture parameters")); if(!capCaptureGetSetup(hwnd, &cp, sizeof(cp))) return(err_capture(vdo, SEV_ERROR, ZBAR_ERR_WINAPI, __func__, "checking capture parameters")); /* ignore errors since we skipped checking fHasOverlay */ capOverlay(hwnd, 0); if(!capPreview(hwnd, 0) || !capPreviewScale(hwnd, 0)) err_capture(vdo, SEV_WARNING, ZBAR_ERR_WINAPI, __func__, "disabling preview"); if(!capSetCallbackOnVideoStream(hwnd, vfw_stream_cb) || !capSetCallbackOnError(hwnd, vfw_error_cb)) return(err_capture(vdo, SEV_ERROR, ZBAR_ERR_BUSY, __func__, "setting capture callbacks")); vdo->num_images = cp.wNumVideoRequested; vdo->iomode = VIDEO_MMAP; /* driver provides "locked" buffers */ zprintf(3, "initialized video capture: %d buffers %ldms/frame\n", vdo->num_images, cp.dwRequestMicroSecPerFrame); return(0); }
static void _vfw_engine_configure(VfwEngine *obj){ if (_vfw_engine_setup(obj)==-1){ return; } if (_vfw_engine_select_format(obj)==-1){ return ; } capSetCallbackOnVideoStream(obj->capvideo, vfw_engine_stream_callback); if (!capCaptureSequenceNoFile(obj->capvideo)){ ms_error("vfw: fail to start capture !"); } ms_thread_create(&obj->thread,NULL,vfw_engine_thread,obj); obj->configured=TRUE; }
void MMCapture::captureInit(UINT framesPerSecond, UINT audioBufferSize) { DWORD style = WS_CHILD; m_captureWindow = capCreateCaptureWindow(_T("my capture window"), style,0,0,640,480,m_receiver.getWindow(),1); if(m_captureWindow == NULL) { throwException(_T("%s:Cannot create CaptureWindow:%s"),__TFUNCTION__,getLastErrorText().cstr()); } try { CHECKRESULT(capSetUserData( m_captureWindow, this)); if(captureVideo()) { CHECKRESULT(capDriverConnect(m_captureWindow, 0 )); m_webCamConnected = true; } CAPTUREPARMS param; CHECKRESULT(capCaptureGetSetup(m_captureWindow,¶m,sizeof(param))); param.dwRequestMicroSecPerFrame = 1000000 / framesPerSecond; param.fYield = TRUE; param.AVStreamMaster = AVSTREAMMASTER_AUDIO; // AVSTREAMMASTER_NONE; param.dwAudioBufferSize = audioBufferSize; CHECKRESULT(capCaptureSetSetup(m_captureWindow,¶m,sizeof(param))); if(captureAudio()) { int audioFormatSize = capGetAudioFormat(m_captureWindow,&m_audioFormat, sizeof(m_audioFormat)); CHECKRESULT(capSetCallbackOnWaveStream( m_captureWindow, captureWaveStreamCallback)); } if(captureVideo()) { int videoFormatSize = capGetVideoFormat(m_captureWindow,&m_videoFormat, sizeof(m_videoFormat)); CHECKRESULT(capSetCallbackOnVideoStream(m_captureWindow, captureVideoStreamCallback)); CHECKRESULT(capSetCallbackOnFrame( m_captureWindow, captureFrameCallback)); } CHECKRESULT(capSetCallbackOnStatus( m_captureWindow, captureStatusCallback)); CHECKRESULT(capSetCallbackOnCapControl( m_captureWindow, captureControlCallback)); CHECKRESULT(capSetCallbackOnError( m_captureWindow, captureErrorCallback)); if(captureAudio() && m_playAudio) { m_audioThread = new AudioPlayerThread(*this); TRACE_NEW(m_audioThread); m_audioThread->start(); } } catch(...) { captureCleanup(); throw; } }
// Disconnection // No comments BOOL CAviCap::Disconnect() { CHECKWIN(); CHECKCNCT(); capSetCallbackOnFrame(GetSafeHwnd(), NULL); capSetCallbackOnVideoStream(GetSafeHwnd(), NULL); StartSeq(FALSE); if(_curDriver!=-1&&GetSafeHwnd()) if(capDriverDisconnect(GetSafeHwnd())) _curDriver=-1; if(_bmpInfo) {delete _bmpInfo; _bmpInfo=NULL;} if(_curDriver==-1) return TRUE; else return FALSE; }
/*初始化VFW设备*/ void CMainFrame::OnVfwInitvfw() { // TODO: 在此添加命令处理程序代码 DWORD fsize; // 创建视频窗口 if(!m_wndSource.CreateEx(WS_EX_TOPMOST,NULL, _T("Source"),WS_OVERLAPPED|WS_CAPTION, CRect(0,0,352,288),NULL,0)) return; m_hWndCap = capCreateCaptureWindow(_T("Capture Window"),WS_CHILD|WS_VISIBLE, 0,0,352,288, m_wndSource.m_hWnd,0); //m_wndSource.ShowWindow(SW_SHOW); // 注册回调函数 capSetCallbackOnError(m_hWndCap,(FARPROC)ErrorCallbackProc); capSetCallbackOnStatus(m_hWndCap,(FARPROC)StatusCallbackProc); capSetCallbackOnVideoStream(m_hWndCap,(FARPROC)VideoCallbackProc); // 连接视频设备 capDriverConnect(m_hWndCap,0); //(HWND m_hWndCap, int index);//index : 0--9 // 获取驱动器的性能参数 capDriverGetCaps(m_hWndCap,&m_caps,sizeof(CAPDRIVERCAPS)); if (m_caps.fHasOverlay) capOverlay(m_hWndCap,TRUE); // 设置预览速率开始预览 capPreviewRate(m_hWndCap,1000/25); capPreview(m_hWndCap,bPreview); fsize = capGetVideoFormatSize(m_hWndCap); capGetVideoFormat(m_hWndCap, lpbiIn, fsize); AfxMessageBox(_T("初始化成功!")); }
// Standard AVIcap window message // macro: capSetCallbackOnVideoStream BOOL CAviCap::SetStreamCallBack(LPVOID cb) { CHECKWIN(); CHECKCNCT(); return capSetCallbackOnVideoStream(GetSafeHwnd(), cb); }
void CSoCProjectView::OnInitialUpdate() { CScrollView::OnInitialUpdate(); CSize sizeTotal; // TODO: 이 뷰의 전체 크기를 계산합니다. sizeTotal.cx = 640; sizeTotal.cy = 480; SetScrollSizes(MM_TEXT, sizeTotal); CSoCProjectDoc*pDoc = GetDocument(); // TODO: 여기에 생성 코드를 추가합니다. RECT r; GetClientRect(&r); pDoc->m_hCamWnd = capCreateCaptureWindow( _T("Capture Window"), WS_CHILD | WS_VISIBLE, 5, 5, r.right-5, r.bottom-5, this->m_hWnd, NULL); // 설치된 디바이스를 순서로 0 ~ 9까지의 카메라를 지정 할 수 있다. if(!capDriverConnect(pDoc->m_hCamWnd, 0)) AfxMessageBox(_T("웹캠 인식 실패 ㅠㅠ")); // 현재 드라이버 정보에 관한 내용 얻어오기 capDriverGetCaps(pDoc->m_hCamWnd, &pDoc->m_psCapsInfo, sizeof(pDoc->m_psCapsInfo)); //비디오 포맷 변환을 지원하는지 확인한다. if(pDoc->m_psCapsInfo.fHasDlgVideoFormat) { // 비디오 포맷 변환을 지원하면 아래 함수를 호출한다. // 호출되는 함수는 새로운 다이얼로그를 호출하고 해상도와 포맷형식, 프레임 버퍼크기등을 지정할 수 있다. // 이때, 지원되지 않는 비디오포멧을 설정하면 검정 화면을 보게될 것이야... capDlgVideoFormat(pDoc->m_hCamWnd); } // m_psCapsInfo.fHasOverlay에서 overlay가 지원이 되지 않으면(=0) 사용 할 수 없다. if(pDoc->m_psCapsInfo.fHasOverlay) { // 하드웨어 오버레이는 시스템 부하를 줄여준다.(optioinal) capOverlay(pDoc->m_hCamWnd, FALSE); } // BITMAPINFO 설정 capGetVideoFormat(pDoc->m_hCamWnd, &pDoc->m_BTMInfo, sizeof(pDoc->m_BTMInfo)); // 1/1000 단위로 영상이 출력된다. capPreviewRate(pDoc->m_hCamWnd, 1); // 프리뷰 영상을 재생한다. capPreview(pDoc->m_hCamWnd, TRUE); CAPTUREPARMS cp; capCaptureGetSetup(pDoc->m_hCamWnd, &cp, sizeof(cp) ); // get the current defaults cp.dwRequestMicroSecPerFrame = 1; // Set desired frame rate cp.fMakeUserHitOKToCapture = FALSE; cp.fYield = TRUE; // we want capture on a background thread. cp.wNumVideoRequested = (WORD) 1; // we may get less than this - no problem cp.fCaptureAudio = FALSE; cp.vKeyAbort = 0; // If no key is provided, it won't stop... cp.fAbortLeftMouse = FALSE; cp.fAbortRightMouse = FALSE; cp.fLimitEnabled = FALSE; // we want to stop cp.fMCIControl = FALSE; capCaptureSetSetup(pDoc->m_hCamWnd, &cp, sizeof(cp) ); capSetCallbackOnVideoStream(pDoc->m_hCamWnd, VideoCallbackProc); capSetCallbackOnFrame(pDoc->m_hCamWnd, VideoCallbackProc); }