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Mondain

By: a guest on Aug 30th, 2010  |  syntax: Java 5  |  size: 4.99 KB  |  views: 2,323  |  expires: Never
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  1. import com.xuggle.xuggler.Configuration;
  2. import com.xuggle.xuggler.ICodec;
  3. import com.xuggle.xuggler.IContainer;
  4. import com.xuggle.xuggler.IContainerFormat;
  5. import com.xuggle.xuggler.IPacket;
  6. import com.xuggle.xuggler.IPixelFormat;
  7. import com.xuggle.xuggler.IRational;
  8. import com.xuggle.xuggler.IStream;
  9. import com.xuggle.xuggler.IStreamCoder;
  10. import com.xuggle.xuggler.IVideoPicture;
  11. import com.xuggle.xuggler.video.ConverterFactory;
  12. import com.xuggle.xuggler.video.IConverter;
  13. import java.awt.AWTException;
  14. import java.awt.Rectangle;
  15. import java.awt.Robot;
  16. import java.awt.image.BufferedImage;
  17. import java.io.IOException;
  18. import java.io.InputStream;
  19. import java.util.Properties;
  20.  
  21. public class XugglerRtmpReferenceImpl {
  22.  
  23.    private static String url = "rtmp://your.test.server/screen/";
  24.    private static String fileName = "test/teststream";
  25.    private static int framesToEncode = 60;
  26.    private static int x = 0;
  27.    private static int y = 0;
  28.    private static int height = 480;
  29.    private static int width = 640;
  30.  
  31.    public static void main(String[] args) {
  32.        IContainer container = IContainer.make();
  33.        IContainerFormat containerFormat_live = IContainerFormat.make();
  34.        containerFormat_live.setOutputFormat("flv", url + fileName, null);
  35.        container.setInputBufferLength(0);
  36.        int retVal = container.open(url + fileName, IContainer.Type.WRITE, containerFormat_live);
  37.        if (retVal < 0) {
  38.            System.err.println("Could not open output container for live stream");
  39.            System.exit(1);
  40.        }
  41.        IStream stream = container.addNewStream(0);
  42.        IStreamCoder coder = stream.getStreamCoder();
  43.        ICodec codec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_H264);
  44.        coder.setNumPicturesInGroupOfPictures(5);
  45.        coder.setCodec(codec);
  46.        coder.setBitRate(200000);
  47.        coder.setPixelType(IPixelFormat.Type.YUV420P);
  48.        coder.setHeight(height);
  49.        coder.setWidth(width);
  50.        System.out.println("[ENCODER] video size is " + width + "x" + height);
  51.        coder.setFlag(IStreamCoder.Flags.FLAG_QSCALE, true);
  52.        coder.setGlobalQuality(0);
  53.        IRational frameRate = IRational.make(5, 1);
  54.        coder.setFrameRate(frameRate);
  55.        coder.setTimeBase(IRational.make(frameRate.getDenominator(), frameRate.getNumerator()));
  56.        Properties props = new Properties();
  57.        InputStream is = XugglerRtmpReferenceImpl.class.getResourceAsStream("/libx264-normal.ffpreset");
  58.        try {
  59.            props.load(is);
  60.        } catch (IOException e) {
  61.            System.err.println("You need the libx264-normal.ffpreset file from the Xuggle distribution in your classpath.");
  62.            System.exit(1);
  63.        }
  64.        Configuration.configure(props, coder);
  65.        coder.open();
  66.        container.writeHeader();
  67.        long firstTimeStamp = System.currentTimeMillis();
  68.        long lastTimeStamp = -1;
  69.        int i = 0;
  70.        try {
  71.            Robot robot = new Robot();
  72.            while (i < framesToEncode) {
  73.                //long iterationStartTime = System.currentTimeMillis();
  74.                long now = System.currentTimeMillis();
  75.                //grab the screenshot
  76.                BufferedImage image = robot.createScreenCapture(new Rectangle(x, y, width, height));
  77.                //convert it for Xuggler
  78.                BufferedImage currentScreenshot = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
  79.                currentScreenshot.getGraphics().drawImage(image, 0, 0, null);
  80.                //start the encoding process
  81.                IPacket packet = IPacket.make();
  82.                IConverter converter = ConverterFactory.createConverter(currentScreenshot, IPixelFormat.Type.YUV420P);
  83.                long timeStamp = (now - firstTimeStamp) * 1000;
  84.                IVideoPicture outFrame = converter.toPicture(currentScreenshot, timeStamp);
  85.                if (i == 0) {
  86.                    //make first frame keyframe
  87.                    outFrame.setKeyFrame(true);
  88.                }
  89.                outFrame.setQuality(0);
  90.                coder.encodeVideo(packet, outFrame, 0);
  91.                outFrame.delete();
  92.                if (packet.isComplete()) {
  93.                    container.writePacket(packet);
  94.                    System.out.println("[ENCODER] writing packet of size " + packet.getSize() + " for elapsed time " + ((timeStamp - lastTimeStamp) / 1000));
  95.                    lastTimeStamp = timeStamp;
  96.                }
  97.                System.out.println("[ENCODER] encoded image " + i + " in " + (System.currentTimeMillis() - now));
  98.                i++;
  99.                try {
  100.                    // sleep for framerate milliseconds
  101.                    Thread.sleep(Math.max((long) (1000 / frameRate.getDouble()) - (System.currentTimeMillis() - now), 0));
  102.                } catch (InterruptedException e) {
  103.                    e.printStackTrace();
  104.                }
  105.            }
  106.        } catch (AWTException e) {
  107.            e.printStackTrace();
  108.        }
  109.        container.writeTrailer();
  110.         }
  111. }
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