我想制作一个移动应用程序（类似于AmpMe或Samsung GroupPlay）。该应用程序在主机制作的服务器上广播音乐。其他设备可以连接到广播（很像在线广播）来收听音乐。
我首先想到使用WifiP2P功能来完成任务，但是为了流音乐，我需要RTSP协议。因此，在查看了互联网上的许多示例和Libstreaming解决方案之后，我仍然找不到这些示例中的有效示例。我当时使用VLC检查RTSP流，但我认为它最初并不起作用。我正在打开网络流以通过for打开流，但是VLC一直显示无法打开给定的MRL。
现在，我在想是否有更好的策略来解决这个问题？我可以简单地使用WifiP2P解决此问题吗？还是我在RTSP管理上做错了什么？
这是我的代码（从LibStreamer示例中获得了它）。我不确定这是否存在问题，或者我的VLC是否存在问题。
array([[5, 0, 0, 0],
[0, 1, 0, 5],
[2, 0, 0, 0],
[0, 0, 2, 4],
[3, 2, 0, 0]])
activity_main是这样的：
rtsp://192.168.137.117:1234Manifest.xml是这样的：
import android.Manifest;
import android.app.Activity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.media.AudioManager;
import android.net.Uri;
import android.net.rtp.AudioCodec;
import android.net.rtp.AudioGroup;
import android.net.rtp.AudioStream;
import android.net.rtp.RtpStream;
import android.os.StrictMode;
import android.preference.PreferenceManager;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import android.app.Activity;
import android.content.Context;
import android.media.AudioManager;
import android.net.rtp.AudioCodec;
import android.net.rtp.AudioGroup;
import android.net.rtp.AudioStream;
import android.net.rtp.RtpStream;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;
import net.majorkernelpanic.streaming.Session;
import net.majorkernelpanic.streaming.SessionBuilder;
import net.majorkernelpanic.streaming.audio.AudioQuality;
import net.majorkernelpanic.streaming.rtsp.RtspServer;
public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback, RtspServer.CallbackListener, Session.Callback {
private final static String TAG = "MainActivity";
private SurfaceView mSurfaceView;
private Session mSession;
private static final int PERMISSION_CALLBACK_CONSTANT = 100;
private static final int REQUEST_PERMISSION_SETTING = 101;
String[] permissionsRequired = new String[]{Manifest.permission.RECORD_AUDIO,
Manifest.permission.CAMERA,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.WAKE_LOCK,
Manifest.permission.INTERNET};
private SharedPreferences permissionStatus;
private boolean sentToSettings = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
permissionStatus = getSharedPreferences("permissionStatus",MODE_PRIVATE);
mSurfaceView = (SurfaceView) findViewById(R.id.surface);
// Sets the port of the RTSP server to 1234
SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(this).edit();
editor.putString( RtspServer.KEY_PORT, String.valueOf(1234));
editor.commit();
getPermissions(); //Helper function to get permissions.
}
private void proceedAfterPermission(){
mSession = SessionBuilder.getInstance()
.setCallback(this)
.setSurfaceView((net.majorkernelpanic.streaming.gl.SurfaceView) mSurfaceView)
.setPreviewOrientation(90)
.setContext(getApplicationContext())
.setAudioEncoder(SessionBuilder.AUDIO_AAC)
.setAudioQuality(new AudioQuality(8000, 16000))
.setVideoEncoder(SessionBuilder.VIDEO_H264)
//.setVideoQuality(new VideoQuality(320,240,20,500000))
.build();
mSurfaceView.getHolder().addCallback(this);
((net.majorkernelpanic.streaming.gl.SurfaceView) mSurfaceView).setAspectRatioMode(net.majorkernelpanic.streaming.gl.SurfaceView.ASPECT_RATIO_PREVIEW);
String ip, port, path;
this.startService(new Intent(this,RtspServer.class));
Log.d("test", "1");
mSession.startPreview(); //camera preview on phone surface
mSession.start();
}
@Override
public void onResume()
{
super.onResume();
mSession.stopPreview();
}
@Override
public void onDestroy()
{
super.onDestroy();
mSession.release();
mSurfaceView.getHolder().removeCallback(this);
}
//region ----------------------------------implement methods required
@Override
public void onError(RtspServer server, Exception e, int error) {
Log.e("Server", e.toString());
}
@Override
public void onMessage(RtspServer server, int message) {
Log.e("Server", "unkown message");
}
@Override
public void onBitrateUpdate(long bitrate) {
}
@Override
public void onSessionError(int reason, int streamType, Exception e) {
}
@Override
public void onPreviewStarted() {
}
@Override
public void onSessionConfigured() {
}
@Override
public void onSessionStarted() {
}
@Override
public void onSessionStopped() {
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
}