无法在Nexus 5

Question

我正在尝试使用下面的代码打开RTSP流，但只获得一个空白屏幕。我在Nexus 5上运行它。我可以使用android VLC应用程序打开相同的URL。 这是日志： 这是日志： 03-04 06:57:59.247 776 1004 I ActivityManager：启动proc 1875：com.vibhani.rtspexperiment / u0a180 for activity com.vibhani.rtspexperiment / com.vibhanirtsp.rtspexperiment.MainActivity 03-04 06:57:59.285 1875 1875我的艺术：迟到-Xcheck：jni 03-04 06：57：59.347 1875 1875 W系统：ClassLoader引用未知路径：/data/app/com.vibhani.rtspexperiment-2/lib/arm 03-04 06:57:59.367 892 892 W Binder_4：type = 1400 audit（0.0：61294）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550745]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550745 ioctlcmd = 7704 scontext = u：r：surfaceflinger：s0 tcontext = u：r：surfaceflinger：s0 tclass = unix_stream_socket permissive = 0 03-04 06:57:59.367 892 892 W Binder_4：type = 1400 audit（0.0：61295）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550745]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550745 ioctlcmd = 7704 scontext = u：r：surfaceflinger：s0 tcontext = u：r：surfaceflinger：s0 tclass = unix_stream_socket permissive = 0 03-04 06:57:59.367 892 892 W Binder_4：type = 1400 audit（0.0：61296）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550747]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550747 ioctlcmd = 7704 scontext = u：r：surfaceflinger：s0 tcontext = u：r：surfaceflinger：s0 tclass = unix_stream_socket permissive = 0 03-04 06：57：59.374 1875 1908 D OpenGLRenderer：使用EGL_SWAP_BEHAVIOR_PRESERVED：true 03-04 06:57:59.367 892 892 W Binder_4：type = 1400 audit（0.0：61297）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550747]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550747 ioctlcmd = 7704 scontext = u：r：surfaceflinger：s0 tcontext = u：r：surfaceflinger：s0 tclass = unix_stream_socket permissive = 0 03-04 06:57:59.377 5028 5028 W Binder_10：type = 1400 audit（0.0：61298）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550751]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550751 ioctlcmd = 7704 scontext = u：r：system_server：s0 tcontext = u：r：system_server：s0 tclass = unix_stream_socket permissive = 0 03-04 06:57:59.377 5028 5028 W Binder_10：type = 1400 audit（0.0：61299）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550751]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550751 ioctlcmd = 7704 scontext = u：r：system_server：s0 tcontext = u：r：system_server：s0 tclass = unix_stream_socket permissive = 0 03-04 06：57：59.403 1875 1908 I Adreno-EGL :: QUALCOMM Build：10/21 / 15,369a2ea，I96aee987eb 03-04 06：57：59.405 1875 1908 I OpenGLRenderer：初始化的EGL，版本1.4 03-04 06:57:59.436 1875 1875 W MediaPlayer：无法在客户端打开文件;尝试服务器端：java.io.FileNotFoundException：没有内容提供者：rtsp：// xxxxx：xxxx@192.168.1.102/cam/realmonitor？channel = 1＆amp; subtype = 0 03-04 06：57：59.438 202 1917 D NuPlayer：onSetVideoSurface（0xb4905100，无视频解码器） 03-04 06：57：59.439 202 1917 D NuPlayerDriver：notifyListener_l（0xb44ad720），（200,701,0） 03-04 06：57：59.439 1875 1894 W MediaPlayer：info / warning（701,0） 03-04 06：57：59.463 202 1918 I RTSPSource：连接请求已完成，结果为0（成功） 03-04 06：57：59.472 776 798 I ActivityManager：显示com.vibhani.rtspexperiment / com.vibhanirtsp.rtspexperiment.MainActivity：+ 236ms 03-04 06：57：59.478 202 1918 I ARTSPConnection：status：RTSP / 1.0 401 Unauthorized 03-04 06：57：59.479 202 1918 I ARTSPConnection：使用身份验证标头重新发送请求... 03-04 06:57:59.467 5028 5028 W Binder_10：type = 1400 audit（0.0：61300）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550753]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550753 ioctlcmd = 7704 scontext = u：r：system_server：s0 tcontext = u：r：system_server：s0 tclass = unix_stream_socket permissive = 0 03-04 06：57：59.467 5028 5028 W Binder_10：type = 1400 audit（0.0：61301）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550753]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550753 ioctlcmd = 7704 scontext = u：r：system_server：s0 tcontext = u：r：system_server：s0 tclass = unix_stream_socket permissive = 0 03-04 06：57：59.467 944 944 W Binder_3：type = 1400 audit（0.0：61302）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550752]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550752 ioctlcmd = 7704 scontext = u：r：system_server：s0 tcontext = u：r：system_server：s0 tclass = unix_stream_socket permissive = 0 03-04 06:57:59.486 1555 1555 I GoogleInputMethod：onFinishInput（）：Dummy InputConnection bound 03-04 06:57:59.486 1555 1555 I GoogleInputMethod：onStartInput（）：Dummy InputConnection bound 03-04 06:57:59.467 944 944 W Binder_3：type = 1400 audit（0.0：61303）：avc：拒绝{ioctl} for path =＆＃34; socket：[4550752]＆＃34; dev的=＆＃34; sockfs＆＃34; ino = 4550752 ioctlcmd = 7704 scontext = u：r：system_server：s0 tcontext = u：r：system_server：s0 tclass = unix_stream_socket permissive = 0 03-04 06：57：59.512 202 1918 I ARTSPConnection：status：RTSP / 1.0 401 Unauthorized 03-04 06：57：59.513 202 1918 I RTSPSource：DESCRIBE完成，结果为0（成功） 03-04 06：57：59.516 202 1917 D NuPlayerDriver：notifyListener_l（0xb44ad720），（100,1，-2147483648） 03-04 06：57：59.516 1875 1895 E MediaPlayer：错误（1，-2147483648） 03-04 06：57：59.517 1875 1875 E MediaPlayer：错误（1，-2147483648）

以下是代码：

public class MainActivity extends Activity implements MediaPlayer.OnPreparedListener, SurfaceHolder.Callback {
    final static String USERNAME = "xxxxx";
    final static String PASSWORD = "xxxxx";
    final static String RTSP_URL = "rtsp://xxxxx:xxxxx@192.168.1.102/cam/realmonitor?channel=1&subtype=0";

    private MediaPlayer _mediaPlayer;
    private SurfaceHolder _surfaceHolder;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Set up a full-screen black window.
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        Window window = getWindow();
        window.setFlags(
                WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        window.setBackgroundDrawableResource(android.R.color.black);

        setContentView(R.layout.activity_main);

        // Configure the view that renders live video.
        SurfaceView surfaceView =
                (SurfaceView) findViewById(R.id.surfaceView);
        _surfaceHolder = surfaceView.getHolder();
        _surfaceHolder.addCallback(this);
        _surfaceHolder.setFixedSize(320, 240);
    }

    /*
SurfaceHolder.Callback
*/

    @Override
    public void surfaceChanged(
            SurfaceHolder sh, int f, int w, int h) {}

    @Override
    public void surfaceCreated(SurfaceHolder sh) {
        _mediaPlayer = new MediaPlayer();
        _mediaPlayer.setDisplay(_surfaceHolder);

        Context context = getApplicationContext();
        Map<String, String> headers = getRtspHeaders();
        Uri source = Uri.parse(RTSP_URL);

        try {
            // Specify the IP camera's URL and auth headers.
            _mediaPlayer.setDataSource(context, source, headers);

            // Begin the process of setting up a video stream.
            _mediaPlayer.setOnPreparedListener(this);
            _mediaPlayer.prepareAsync();
        }
        catch (Exception e) {}
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder sh) {
        _mediaPlayer.release();
    }

    private Map<String, String> getRtspHeaders() {
        Map<String, String> headers = new HashMap<String, String>();
        String basicAuthValue = getBasicAuthValue(USERNAME, PASSWORD);
        headers.put("Authorization", basicAuthValue);
        return headers;
    }

    private String getBasicAuthValue(String usr, String pwd) {
        String credentials = usr + ":" + pwd;
        int flags = Base64.URL_SAFE | Base64.NO_WRAP;
        byte[] bytes = credentials.getBytes();
        return "Basic " + Base64.encodeToString(bytes, flags);
    }

    /*
MediaPlayer.OnPreparedListener
*/
    @Override
    public void onPrepared(MediaPlayer mp) {
        _mediaPlayer.start();
    }
}