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();
}
// 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();
}