无法在android中加载视频流

Posted 2023-03-07

【中文标题】无法在android中加载视频流

【英文标题】：failed to load video stream in android

【发布时间】：2017-09-12 11:20:16

【问题描述】：

嘿，伙计们，我正在开发一个电视台直播的 android 应用程序，现在我有了流媒体引擎的 url，看起来 http://197.243.19.131:1935/rtv/rtv/playlist.m3u8

任何人都可以帮助我了解如何在 android 中从该 url 播放视频请帮助我在这里尝试编写一些代码：

String stream_url="http://197.243.19.131:1935/rtv/rtv/playlist.m3u8";
View rootView = inflater.inflate(R.layout.fragment_two, container, false);
videoView=(VideoView)rootView.findViewById(R.id.videoStream);
Uri uri= Uri.parse(stream_url);
videoView.setVideoURI(uri);
videoView.start();

【问题讨论】：

此流在外部应用程序上是否适合您？浏览器？ VLC 播放器？另外，您正在测试哪种设备？并非所有 Android 操作系统和设备都完全支持 HLS。

是的，这个流在 vlc 网络流上工作

【参考方案1】：

尽管您已经声明了要渲染视频的视图，但您还没有处理过媒体，但您需要更深入地研究媒体和流媒体。 您需要使用 Android 提供的 Media Player Api 来流式传输这个 m3u8。按照此代码播放 Live 内容非常简单。

  public class PlayerActivity extends AppCompatActivity implements 
      SurfaceHolder.Callback, MediaPlayer.OnPreparedListener 


   private String Downloadurl;
   private int playminute;
   private SurfaceView mSurfaceView;
   private MediaPlayer mMediaPlayer;
   private SurfaceHolder mSurfaceHolder;
   ProgressBar p_bar;

    @Override
   protected void onCreate(Bundle savedInstanceState) 

   super.onCreate(savedInstanceState);
    setContentView(R.layout.player);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
     View decorView = getWindow().getDecorView();
   // Hide both the navigation bar and the status bar.
   // SYSTEM_UI_FLAG_FULLSCREEN is only available on Android 4.1 and higher, but as
  // a general rule, you should design your app to hide the status bar whenever you
  // hide the navigation bar.
    int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_FULLSCREEN;
    decorView.setSystemUiVisibility(uiOptions);

  //        thumburl = getIntent().getStringExtra("thumburl");
  //        p_bar=(ProgressBar)findViewById(R.id.p_bar);
    // entryid =  getIntent().getStringExtra("entryid");
    // playminute =  getIntent().getIntExtra("playminute",0);
    //fragmenttype =  getIntent().getStringExtra("fragmenttype");
   //   Downloadurl = getIntent().getStringExtra("Downloadurl");
    Downloadurl = "http://197.243.19.131:1935/rtv/rtv/playlist.m3u8";
    // Description =  getIntent().getStringExtra("Description");
       Log.e("kanish","Download Url inside player:"+Downloadurl);
    mSurfaceView = (SurfaceView) findViewById(R.id.surface_view);
    mSurfaceHolder = mSurfaceView.getHolder();
    mSurfaceHolder.addCallback(PlayerActivity.this);
    

     @Override
     public void surfaceCreated(SurfaceHolder holder) 
    p_bar.setVisibility(View.VISIBLE);
    mMediaPlayer = new MediaPlayer();
    mMediaPlayer.setDisplay(mSurfaceHolder);
    try 
        mMediaPlayer.setDataSource(Downloadurl);
        mMediaPlayer.prepare();
        mMediaPlayer.setOnPreparedListener(PlayerActivity.this);
        //mMediaPlayer.setAudiostreamType(AudioManager.STREAM_MUSIC);
       catch (IOException e) 
        e.printStackTrace();
      
   

   @Override
   public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) 
   

   @Override
   public void surfaceDestroyed(SurfaceHolder holder) 
   

   @Override
   public void onBackPressed() 
    super.onBackPressed();

    

   @Override
   public void onPrepared(MediaPlayer mp) 
    p_bar.setVisibility(View.GONE);
    mMediaPlayer.start();
    

   @Override
   protected void onPause() 
      super.onPause();
       releaseMediaPlayer();
      

    @Override
    protected void onDestroy() 
    super.onDestroy();
    releaseMediaPlayer();
     

   private void releaseMediaPlayer() 
      if (mMediaPlayer != null) 
        mMediaPlayer.release();
        mMediaPlayer = null;
    
  

如果有帮助，请告诉我。

在电视模拟器上测试过，流媒体很好：

【讨论】：

如果有帮助，您可以选择正确答案。它将帮助其他人解决这个问题以找到可行的解决方案

在日志中播放失败说 ava.io.IOException: Prepare failed.: status=0x64 09-15 05:03:06.397 22633-22633/com.dukire.dukireapp W/System .err：在 android.media.MediaPlayer._prepare(Native Method)

【参考方案2】：

你错过了OnPreparedListener。

videoview.setOnPreparedListener(new OnPreparedListener() 
    @Override
    public void onPrepared(MediaPlayer mp) 
        videoview.start();
    
);

关注这个tutorial。