headless chrome†

cent7†

/etc/yum.repos.d/google-chrome.repo

[google-chrome]
name=google-chrome
baseurl=http://dl.google.com/linux/chrome/rpm/stable/$basearch
enabled=0
gpgcheck=1
gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub

yum -y update
yum -y install google-chrome-stable
yum -y install epel-release
yum -y install libX11 GConf2 fontconfig 
yum -y install python-pip
pip install --upgrade pip
pip install selenium
yum install -y google-chrome-unstable libOSMesa google-noto-cjk-fonts
ln -s /usr/lib64/libOSMesa.so.8 /opt/google/chrome-unstable/libosmesa.so

ubuntu16†

apt-get install -y libappindicator1 fonts-liberation
curl -O https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
dpkg -i google-chrome-stable_current_amd64.deb
sudo apt-get install libosmesa6
mkdir /opt/google/chrome/
ln -s /usr/lib/x86_64-linux-gnu/libOSMesa.so.8 /opt/google/chrome/libosmesa.so

test

google-chrome --headless --use-gl=osmesa --screenshot https://www.chromestatus.com/

chromedriver†

wget https://chromedriver.storage.googleapis.com/2.33/chromedriver_linux64.zip
unzip chromedriver*.zip
mv chromedriver /usr/local/bin

ffmpeg†

sudo add-apt-repository ppa:jonathonf/ffmpeg-3
sudo apt update
sudo apt install ffmpeg libav-tools x264 x265

JavaSample†

		String os = System.getProperty("os.name").toLowerCase();
		if (os.startsWith("windows")){
			OUTPUT_DIR = "./output/";
			System.setProperty("webdriver.chrome.driver", "./conf/chromedriver.exe");
		}else{
			OUTPUT_DIR = "./output/";
			System.setProperty("webdriver.chrome.driver", "/usr/local/bin/chromedriver");
		}
		
		final ChromeOptions options = new ChromeOptions();
		if (!os.startsWith("windows")){
			options.addArguments("--headless");
			options.addArguments("--use-gl=osmesa");
//			options.addArguments("--disable-gpu");
			FFMPEG = "ffmpeg";
		}else {
			FFMPEG = "C:\\\\ffmpeg\\\\bin\\\\ffmpeg.exe";
		}
		
		driver = new ChromeDriver(options);
		driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);

driver.manage().window().setSize(new Dimension(width,height));
				driver.get(value.getAsString());
		    	((JavascriptExecutor) driver).executeScript(script);
				new Select(driver.findElement(By.name(n))).selectByValue(v);

		driver.quit();

	public void capture(int i, int x, int y, int w, int h){
		TakesScreenshot ts = (TakesScreenshot) new Augmenter().augment(driver);
		try {
			String serial = "0000"+i;
			serial = serial.substring(serial.length() - 4);
			File image = ts.getScreenshotAs(OutputType.FILE);
			BufferedImage  fullImg = ImageIO.read(image);
			System.out.println(fullImg.getWidth() + ", "+ fullImg.getHeight());
			if (x<0){
				x = 0; y=0; 
				w=fullImg.getWidth() - fullImg.getWidth() %4;
				h=fullImg.getHeight()- fullImg.getHeight()%4;
			}
			BufferedImage miniImage = fullImg.getSubimage(x, y, w, h);
			ImageIO.write(miniImage, "png", image);
			File sc = new File(OUTPUT_DIR + serial +".png");
			FileUtils.moveFile( image, sc);
		} catch (WebDriverException | IOException e) {
		}
	}