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我是新来的Android编程和发现自己被困我一直在研究各种方式从手机传输实时视频电话，似乎有它主要的功能，除了当然的了最重要的部分：播放流。它似乎是从一部手机发送流，但第二部手机无法播放流。流实时视频电话使用套接字fd
这里是打边
public class VideoPlayback extends Activity implements Callback {
MediaPlayer mp;
private SurfaceView mPreview;
private SurfaceHolder holder;
private TextView mTextview;
public static final int SERVERPORT = 6775;
public static String SERVERIP="192.168.1.126";
Socket clientSocket;
private Handler handler = new Handler();
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mPreview = (SurfaceView) findViewById(R.id.surfaceView1);
mTextview = (TextView) findViewById(R.id.textView1);
holder = mPreview.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mTextview.setText("Attempting to connect");
mp = new MediaPlayer();
Thread t = new Thread(){
public void run(){
try {
clientSocket = new Socket(SERVERIP,SERVERPORT);
handler.post(new Runnable() {
@Override
public void run() {
mTextview.setText("Connected to server");
}
});
handler.post(new Runnable() {
@Override
public void run() {
try {
ParcelFileDescriptor pfd = ParcelFileDescriptor.fromSocket(clientSocket);
pfd.getFileDescriptor().sync();
mp.setDataSource(pfd.getFileDescriptor());
pfd.close();
mp.setDisplay(holder);
mp.prepareAsync();
mp.start();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
t.start();
}
的代码，这里是流侧
public class VideoStreaming extends Activity{
// User Interface Elements
VideoView mView;
TextView connectionStatus;
SurfaceHolder mHolder;
// Video variable
MediaRecorder recorder;
// Networking variables
public static String SERVERIP="";
public static final int SERVERPORT = 6775;
private Handler handler = new Handler();
private ServerSocket serverSocket;
/** Called when the activity is first created. */
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Define UI elements
mView = (VideoView) findViewById(R.id.video_preview);
connectionStatus = (TextView) findViewById(R.id.connection_status_textview);
mHolder = mView.getHolder();
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
SERVERIP = "192.168.1.126";
// Run new thread to handle socket communications
Thread sendVideo = new Thread(new SendVideoThread());
sendVideo.start();
}
public class SendVideoThread implements Runnable{
public void run(){
// From Server.java
try {
if(SERVERIP!=null){
handler.post(new Runnable() {
@Override
public void run() {
connectionStatus.setText("Listening on IP: " + SERVERIP);
}
});
serverSocket = new ServerSocket(SERVERPORT);
while(true) {
//listen for incoming clients
Socket client = serverSocket.accept();
handler.post(new Runnable(){
@Override
public void run(){
connectionStatus.setText("Connected.");
}
});
try{
// Begin video communication
final ParcelFileDescriptor pfd = ParcelFileDescriptor.fromSocket(client);
handler.post(new Runnable(){
@Override
public void run(){
recorder = new MediaRecorder();
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setOutputFile(pfd.getFileDescriptor());
recorder.setVideoFrameRate(20);
recorder.setVideoSize(176,144);
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);
recorder.setPreviewDisplay(mHolder.getSurface());
try {
recorder.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
recorder.start();
}
});
} catch (Exception e) {
handler.post(new Runnable(){
@Override
public void run(){
connectionStatus.setText("Oops.Connection interrupted. Please reconnect your phones.");
}
});
e.printStackTrace();
}
}
} else {
handler.post(new Runnable() {
@Override
public void run(){
connectionStatus.setText("Couldn't detect internet connection.");
}
});
}
} catch (Exception e){
handler.post(new Runnable() {
@Override
public void run() {
connectionStatus.setText("Error");
}
});
e.printStackTrace();
}
// End from server.java
}
}
我试图创建的MediaPlayer
05-24 16:25:39.360: ERROR/MediaPlayerService(88): offset error
05-24 16:25:39.360: ERROR/MediaPlayer(11895): Unable to to create media player
05-24 16:25:39.360: WARN/System.err(11895): java.io.IOException: setDataSourceFD failed.: status=0x80000000
05-24 16:25:39.360: WARN/System.err(11895): at android.media.MediaPlayer.setDataSource(Native Method)
05-24 16:25:39.360: WARN/System.err(11895): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:811)
05-24 16:25:39.360: WARN/System.err(11895): at com.conti.VideoPlayBack.VideoPlayback$1$2.run(VideoPlayback.java:63)
05-24 16:25:39.360: WARN/System.err(11895): at android.os.Handler.handleCallback(Handler.java:587)
05-24 16:25:39.360: WARN/System.err(11895): at android.os.Handler.dispatchMessage(Handler.java:92)
05-24 16:25:39.360: WARN/System.err(11895): at android.os.Looper.loop(Looper.java:132)
05-24 16:25:39.360: WARN/System.err(11895): at android.app.ActivityThread.main(ActivityThread.java:4025)
05-24 16:25:39.360: WARN/System.err(11895): at java.lang.reflect.Method.invokeNative(Native Method)
05-24 16:25:39.360: WARN/System.err(11895): at java.lang.reflect.Method.invoke(Method.java:491)
05-24 16:25:39.360: WARN/System.err(11895): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
05-24 16:25:39.360: WARN/System.err(11895): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
05-24 16:25:39.360: WARN/System.err(11895): at dalvik.system.NativeStart.main(Native Method)
没有人对此有一个解决？提前致谢！
你得到它的工作？ – B770 2013-08-19 09:36:56
是为你工作吗？如果它正在工作，请告诉我如何解决这个问题。 – Aravi 2013-12-10 08:18:19
关于这个问题有几个问题，都以同样的方式结束，有人说它应该是可能的，但没有真正的答案，没有工作代码的例子，它非常令人沮丧。 – steveh 2014-07-06 01:06:28