C++ ofVideoGrabber::initGrabber方法代码示例

 void setup() {
     vid.initGrabber(w, h);
     mesh.setMode(OF_PRIMITIVE_POINTS);
     mesh.addVertices(vector<ofVec3f>(n));
     mesh.addColors(vector<ofFloatColor>(n));
     
 }

//--------------------------------------------------------------
void ofApp::setup(){
    //we can now get back a list of devices.
    vector<ofVideoDevice> devices = vidGrabber.listDevices();
    
    for(int i = 0; i < devices.size(); i++){
        cout << devices[i].id << ": " << devices[i].deviceName;
        if( devices[i].bAvailable ){
            cout << endl;
        }else{
            cout << " - unavailable " << endl;
        }
    }
    vidGrabber.setDeviceID(1);

    
    
    vidGrabber.setVerbose(true);
    vidGrabber.initGrabber(width, height);
    recorded = (unsigned char*)malloc(3 * height * width * record_size);
    tmp = (unsigned char*)malloc(3 * height * width);
    back = (unsigned char*)malloc(3 * height * width);
    merged = (unsigned char*)malloc(3 * height * width);
    show = vidGrabber.getPixels();
    udpConnection.Create();
    udpConnection.Bind(1511);
    udpConnection.SetNonBlocking(true);
    for (int i = 0; i < trackers_cnt; i++) {
        tracker t = tracker(i);
        trackers.push_back(t);
    }
    outfile.open("/users/yui/desktop/yellow_imgs/teacher/log.txt", std::ios_base::app);
    
}

	FREObject openCamera(FREContext ctx, void* funcData, uint32_t argc, FREObject argv[])
	{
		gGrabber.initGrabber(1280, 720);

		
		return NULL;
	}

void setup() 
{
    ofSetWindowShape(width, height);  // Set the window size.
    grabber.initGrabber(width, height); // Set the grabber size.
    
    // Allocate each of our helper images.
    colorImage.allocate(width, height);
	grayscaleImage.allocate(width, height);
	grayscaleBackgroundImage.allocate(width, height);
	grayscaleAbsoluteDifference.allocate(width, height);
	grayscaleBinary.allocate(width, height);
	
}

	void setup()
	{
		ofSetFrameRate(60);
		ofSetVerticalSync(true);
		ofBackground(0);
		
		video.initGrabber(1280, 720);
		
		isf.setup(1280, 720, GL_RGB32F);
		isf.load("isf-test");
		
		isf.setImage("inputImage", video.getTexture());
	}

	void setup()
	{
		ofSetFrameRate(60);
		ofSetVerticalSync(true);
		ofBackground(0);
		
		video.initGrabber(1280, 720);
		
		chain.setup(1280, 720);
		chain.load("ZoomBlur.fs");
		chain.load("CubicLensDistortion.fs");
		
		chain.setImage(video.getTextureReference());
	}

//--------------------------------------------------------------
void testApp::setup(){
    vidGrabber.setVerbose(true);
    vidGrabber.initGrabber(640, 480);
    
    colorImg.allocate(vidGrabber.getWidth(), vidGrabber.getHeight());
    greyImage.allocate(vidGrabber.getWidth(), vidGrabber.getHeight());
    greyImageSmall.allocate(120, 90);

    haarFinder.setup("haarcascade_frontalface_alt2.xml");
    
    img.loadImage("stevejobs.png");
    img.setAnchorPercent(0.5, 0.5);
                    
    ofEnableAlphaBlending();
}

//--------------------------------------------------------------
void testApp::setup(){
	ofBackground(50, 50, 50);
	
	
	// dump everything to console
	ofSetLogLevel(OF_LOG_VERBOSE);
	
	
	// disable vsync (to allow >60fps)
	ofSetVerticalSync(false);
	
	
	// init grabber
	videoGrabber.initGrabber(640, 480);	
	vidWidth	= videoGrabber.getWidth();
	vidHeight	= videoGrabber.getHeight();
	

	// allocate temp buffer
	pixels		= new unsigned char[vidWidth * vidHeight * 4];
	

	// init OpenCL from OpenGL context to enable GL-CL data sharing
	openCL.setupFromOpenGL();
	
	
	// create OpenCL textures and related OpenGL textures
	clImage[0].initWithTexture(vidWidth, vidHeight, GL_RGBA);
	clImage[1].initWithTexture(vidWidth, vidHeight, GL_RGBA);
	

	// load and compile OpenCL program
	openCL.loadProgramFromFile("MSAOpenCL/ImageProcessing.cl");
	
	
	// load kernels
	openCL.loadKernel("msa_boxblur");
	openCL.loadKernel("msa_flipx");
	openCL.loadKernel("msa_flipy");
	openCL.loadKernel("msa_greyscale");
	openCL.loadKernel("msa_invert");
	openCL.loadKernel("msa_threshold");
}

void ofApp::setup() {
    
    ofEnableSmoothing();
    ofEnableAlphaBlending();
    ofSetFrameRate(60);
    ofSetVerticalSync(true);
    ofEnableDepthTest();
    ofEnableAntiAliasing();

    memset( dmxData_, 0, DMX_DATA_LENGTH );
    
    //open the device
    dmxInterface_ = ofxGenericDmx::createDevice(DmxDevice::DMX_DEVICE_RAW);
    bool opened = dmxInterface_->open();
    if ( dmxInterface_ == 0 || !opened ) {
        printf( "No FTDI Device Found\n" );
    } else {
        printf( "isOpen: %i\n", dmxInterface_->isOpen() );
    }
    
    printf("ofxGenericDmx addon version: %s.%s\n", ofxGenericDmx::VERSION_MAJOR, ofxGenericDmx::VERSION_MINOR);
    
    std::string file = "Lightweave_loops2.json";
    std::string columnsFile = "Lightweave_columns2.json";
    std::string facesFile = "Lightweave_faces2.json";
    
    bool parsingSuccessful = result.open(file);
    
    bool parsingSuccessfulColumn = columnGeometry.open(columnsFile);

    bool parsingSuccessfulFaces = faceGeometry.open(facesFile);

    
    for (int region = 0; region < 6; region++) {
        string blah = "region" + ofToString(region);
        for (int rings = 0; rings < result[blah].size(); rings++) {
            string ring = "ring" + ofToString(rings);
            for (int pointPos = 0; pointPos < 3; pointPos++) {
                string point = "point" + ofToString(pointPos);
            }
        }
    }
        
    //setupUDP();
    
    camWidth = 320;
    camHeight = 240;

    vector<ofVideoDevice> devices = vidGrabber.listDevices();
    for (int i = 0; i < devices.size(); i++) {
        if (devices[i].bAvailable) {
            ofLogNotice() << devices[i].id << ": " << devices[i].deviceName;
        } else {
            ofLogNotice() << devices[i].id << ": " << devices[i].deviceName << " - unavailable ";
        }
    }
    
    for (int i = 0; i < devices.size(); i++) {
        if (!devices[i].deviceName.find("USB")) {
            cout << devices[i].id << endl;
            pcCams.push_back(devices[i].id);
        }
    }
    

    vidGrabber.setDeviceID(pcCams[0]);
//    vidGrabber.setDeviceID(0);

    vidGrabber.initGrabber(320,240);
    
    vidGrabber1.setDeviceID(pcCams[1]);
//    vidGrabber1.setDeviceID(0);

    vidGrabber1.initGrabber(320,240);
    
    colorImg1.allocate(320,240);
    grayImage1.allocate(320,240);
    grayBg1.allocate(320,240);
    grayDiff1.allocate(320,240);
    
    colorImg.allocate(320,240);
    grayImage.allocate(320,240);
    grayBg.allocate(320,240);
    grayDiff.allocate(320,240);
    
    bLearnBackground = true;
    bLearnBackground1 = true;
    threshold = 80;
    drawOne = false;
    
    bottomSwarm.a = 1.1f;
    bottomSwarm.b = (curWidth/4.0);
    bottomSwarm.c = 100.0;
    bottomSwarm.bVel = 1.0;
    
    xPos = 0;
    yPos = 0;
    zPos = 0;
    
    cam.setPosition(result["region0"]["ring0"]["point0"][0].asFloat(),result["region0"]["ring0"]["point0"][1].asFloat(),result["region0"]["ring0"]["point0"][2].asFloat());
//.........这里部分代码省略.........

	void setup() {
		useSharedData();
		tracker.setup();
		cam.initGrabber(1280, 720);
	}

// Set up our sketch.
void setup() 
{
    ofSetWindowShape(1280, 720);  // Set the window size.
    grabber.initGrabber(1280, 720); // Set the grabber size.
    pixels.allocate(1280, 720, OF_PIXELS_RGB);	// Allocate memory for our pixels.
}

 void setup() {
     ccv.setupFace("face.sqlite3");
     cam.initGrabber(1920/2, 1080/2);
 }