Esempio n. 1
0
  public void run() {
    URL url;
    Base64Encoder base64 = new Base64Encoder();

    try {
      url = new URL(urlString);
    } catch (MalformedURLException e) {
      System.err.println("Invalid URL");
      return;
    }

    try {
      conn = (HttpURLConnection) url.openConnection();
      conn.setRequestProperty("Authorization", "Basic " + base64.encode(user + ":" + pass));
      httpIn = new BufferedInputStream(conn.getInputStream(), 8192);
    } catch (IOException e) {
      System.err.println("Unable to connect: " + e.getMessage());
      return;
    }

    int prev = 0;
    int cur = 0;

    try {
      while (keepAlive && (cur = httpIn.read()) >= 0) {
        if (prev == 0xFF && cur == 0xD8) {
          jpgOut = new ByteArrayOutputStream(8192);
          jpgOut.write((byte) prev);
        }
        if (jpgOut != null) {
          jpgOut.write((byte) cur);
        }
        if (prev == 0xFF && cur == 0xD9) {
          synchronized (curFrame) {
            curFrame = jpgOut.toByteArray();
          }
          frameAvailable = true;
          jpgOut.close();
        }
        prev = cur;
      }
    } catch (IOException e) {
      System.err.println("I/O Error: " + e.getMessage());
    }
    try {
      jpgOut.close();
      httpIn.close();
    } catch (IOException e) {
      System.err.println("Error closing streams: " + e.getMessage());
    }
    conn.disconnect();
  }
Esempio n. 2
0
  // Takes a PImage and compresses it into a JPEG byte stream
  // Adapted from Dan Shiffman's UDP Sender code
  public byte[] compressImage(PImage img) {
    // We need a buffered image to do the JPG encoding
    BufferedImage bimg = new BufferedImage(img.width, img.height, BufferedImage.TYPE_INT_RGB);

    img.loadPixels();
    bimg.setRGB(0, 0, img.width, img.height, img.pixels, 0, img.width);

    // Need these output streams to get image as bytes for UDP communication
    ByteArrayOutputStream baStream = new ByteArrayOutputStream();
    BufferedOutputStream bos = new BufferedOutputStream(baStream);

    // Turn the BufferedImage into a JPG and put it in the BufferedOutputStream
    // Requires try/catch
    try {
      ImageIO.write(bimg, "jpg", bos);
    } catch (IOException e) {
      e.printStackTrace();
    }

    // Get the byte array, which we will send out via UDP!
    return baStream.toByteArray();
  }