如何同时管理多个 GoPro 摄像机？我想同时串流三个 GoPro 摄像机的三个视频，并将视频记录在硬盘上。
我用 Java 为一个 GoPro 编写了一个工具，它可以正常工作。
请帮帮我！
这是代码：
public class GoProStreamer extends JFrame {
private static final String CAMERA_IP = "10.5.5.9";
private static int PORT = 8080;
private static DatagramSocket mOutgoingUdpSocket;
private Process streamingProcess;
private Process writeVideoProcess;
private KeepAliveThread mKeepAliveThread;
private JPanel contentPane;
public GoProStreamer() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(800, 10, 525, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
JButton btnStop = new JButton("Stop stream");
JButton btnStart = new JButton("Start stream");
JButton btnRec = new JButton("Rec");
JButton btnStopRec = new JButton("Stop Rec");
// JButton btnZoomIn = new JButton("Zoom In sincrono");
// JButton btnZoomOut = new JButton("Zoom out sincrono");
// JButton btnZoomIn1 = new JButton("Zoom In Camera 1");
// JButton btnZoomOut1 = new JButton("Zoom out Camera 1");
// JButton btnZoomIn2 = new JButton("Zoom in Camera 2");
// JButton btnZoomOut2 = new JButton("Zoom out Camera 2");
// JButton btnZoomIn3 = new JButton("Zoom in camera 3");
// JButton btnZoomOut3 = new JButton("Zoom out Camera 3");
btnStop.setEnabled(false);
btnRec.setEnabled(false);
btnStopRec.setEnabled(false);
// btnZoomIn.setEnabled(false);
// btnZoomOut.setEnabled(false);
// btnZoomIn1.setEnabled(false);
// btnZoomOut1.setEnabled(false);
// btnZoomIn2.setEnabled(false);
// btnZoomOut2.setEnabled(false);
// btnZoomIn3.setEnabled(false);
// btnZoomOut3.setEnabled(false);
JPanel panel = new JPanel();
// JPanel panel2 = new JPanel();
// JPanel panel3 = new JPanel();
// JPanel panel4 = new JPanel();
panel.add(btnStart);
panel.add(btnStop);
panel.add(btnRec);
panel.add(btnStopRec);
// panel2.add(btnZoomIn1);
// panel3.add(btnZoomOut1);
// panel2.add(btnZoomIn2);
// panel3.add(btnZoomOut2);
// panel2.add(btnZoomIn3);
// panel3.add(btnZoomOut3);
// panel4.add(btnZoomIn);
// panel4.add(btnZoomOut);
contentPane.add(panel, BorderLayout.SOUTH);
// contentPane.add(panel2, BorderLayout.NORTH);
// contentPane.add(panel3, BorderLayout.CENTER);
btnStart.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
startStreamService();
keepAlive();
startStreaming();
btnStart.setEnabled(false);
btnStop.setEnabled(true);
btnRec.setEnabled(true);
btnStopRec.setEnabled(false);
// btnZoomIn.setEnabled(true);
// btnZoomOut.setEnabled(true);
// btnZoomIn1.setEnabled(true);
// btnZoomOut1.setEnabled(true);
// btnZoomIn2.setEnabled(true);
// btnZoomOut2.setEnabled(true);
// btnZoomIn3.setEnabled(true);
// btnZoomOut3.setEnabled(true);
}
});
btnStop.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
stopStreaming();
stopKeepalive();
btnStart.setEnabled(true);
btnStop.setEnabled(false);
btnRec.setEnabled(false);
btnStopRec.setEnabled(false);
}
});
btnRec.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
startRec();
btnStart.setEnabled(false);
btnStop.setEnabled(false);
btnRec.setEnabled(false);
btnStopRec.setEnabled(true);
}
});
btnStopRec.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
stopRec();
btnStart.setEnabled(false);
btnStop.setEnabled(true);
btnRec.setEnabled(true);
btnStopRec.setEnabled(false);
}
});
}
private void startStreamService() {
HttpURLConnection localConnection = null;
try {
String str = "http://" + CAMERA_IP + "/gp/gpExec?p1=gpStreamA9&c1=restart";
localConnection = (HttpURLConnection) new URL(str).openConnection();
localConnection.addRequestProperty("Cache-Control", "no-cache");
localConnection.setConnectTimeout(5000);
localConnection.setReadTimeout(5000);
int i = localConnection.getResponseCode();
if (i >= 400) {
throw new IOException("sendGET HTTP error " + i);
}
}
catch (Exception e) {
}
if (localConnection != null) {
localConnection.disconnect();
}
}
@SuppressWarnings("static-access")
private void sendUdpCommand(int paramInt) throws SocketException, IOException {
Locale localLocale = Locale.US;
Object[] arrayOfObject = new Object[4];
arrayOfObject[0] = Integer.valueOf(0);
arrayOfObject[1] = Integer.valueOf(0);
arrayOfObject[2] = Integer.valueOf(paramInt);
arrayOfObject[3] = Double.valueOf(0.0D);
byte[] arrayOfByte = String.format(localLocale, "_GPHD_:%d:%d:%d:%1f\n", arrayOfObject).getBytes();
String str = CAMERA_IP;
int i = PORT;
DatagramPacket localDatagramPacket = new DatagramPacket(arrayOfByte, arrayOfByte.length, new InetSocketAddress(str, i));
this.mOutgoingUdpSocket.send(localDatagramPacket);
}
private void startStreaming() {
Thread threadStream = new Thread() {
@Override
public void run() {
try {
streamingProcess = Runtime.getRuntime().exec("ffmpeg-20150318-git-0f16dfd-win64-static\\bin\\ffplay -i http://10.5.5.9:8080/live/amba.m3u8");
InputStream errorStream = streamingProcess.getErrorStream();
byte[] data = new byte[1024];
int length = 0;
while ((length = errorStream.read(data, 0, data.length)) > 0) {
System.out.println(new String(data, 0, length));
System.out.println(System.currentTimeMillis());
}
} catch (IOException e) {
}
}
};
threadStream.start();
}
private void startRec() {
Thread threadRec = new Thread() {
@Override
public void run() {
try {
writeVideoProcess = Runtime.getRuntime().exec("ffmpeg-20150318-git-0f16dfd-win64-static\\bin\\ffmpeg -re -i http://10.5.5.9:8080/live/amba.m3u8 -c copy -an Video_GoPro_" + Math.random() + ".avi");
InputStream errorRec = writeVideoProcess.getErrorStream();
byte[] dataRec = new byte[1024];
int lengthRec = 0;
while ((lengthRec = errorRec.read(dataRec, 0, dataRec.length)) > 0) {
System.out.println(new String(dataRec, 0, lengthRec));
System.out.println(System.currentTimeMillis());
}
} catch (IOException e) {
}
}
};
threadRec.start();
}
private void keepAlive() {
mKeepAliveThread = new KeepAliveThread();
mKeepAliveThread.start();
}
class KeepAliveThread extends Thread {
public void run() {
try {
Thread.currentThread().setName("gopro");
if (mOutgoingUdpSocket == null) {
mOutgoingUdpSocket = new DatagramSocket();
}
while ((!Thread.currentThread().isInterrupted()) && (mOutgoingUdpSocket != null)) {
sendUdpCommand(2);
Thread.sleep(2500L);
}
}
catch (SocketException e) {
}
catch (InterruptedException e) {
}
catch (Exception e) {
}
}
}
private void stopStreaming() {
if (streamingProcess != null) {
streamingProcess.destroy();
streamingProcess = null;
}
stopKeepalive();
mOutgoingUdpSocket.disconnect();
mOutgoingUdpSocket.close();
}
private void stopRec() {
writeVideoProcess.destroy();
writeVideoProcess = null;
}
private void stopKeepalive() {
if (mKeepAliveThread != null) {
mKeepAliveThread.interrupt();
try {
mKeepAliveThread.join(10L);
mKeepAliveThread = null;
}
catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
public static void main(String[] args) {
GoProStreamer streamer = new GoProStreamer();
streamer.setVisible(true);
streamer.setTitle("Pannello di controllo");
}
}