Exoplayer v2，现场视频流

Question

我想用ExoPlayer替换视频视图，以便在我的应用中进行直播。

我无法在ExoPlayer上找到任何示例，用videoView.setVideoURI("")替代我的代码以及实时视频的实现。

执行的任何人都可以请帮忙吗？

感谢

Answer 1

加波纹管编译到您的gradle产出：

//Video Playback library 
compile 'com.google.android.exoplayer:exoplayer:r2.5.+' 

添加下面一行到你的XML文件：

<com.google.android.exoplayer2.ui.SimpleExoPlayerView 
     android:id="@+id/video_player" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     app:resize_mode="fill"></com.google.android.exoplayer2.ui.SimpleExoPlayerView> 

写celow代码在你的活动：

private SimpleExoPlayer player; 
    private TrackSelector trackSelector; 
    // replace URL with your url/path 
    private String urlToPlay; 

    //I have used butterknife you can bind view as per your convinience 
    @BindView(R.id.video_player) 
    SimpleExoPlayerView feedVideo; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setUpVideo(); 
    } 
    private void setUpVideo() { 
     // 1. Create a default TrackSelector 
     BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(); 
     TrackSelection.Factory videoTrackSelectionFactory = 
       new AdaptiveTrackSelection.Factory(bandwidthMeter); 
     trackSelector = new 
     DefaultTrackSelector(videoTrackSelectionFactory); 

     // 2. Create the player 
     player = ExoPlayerFactory.newSimpleInstance(this, 
       trackSelector); 

     feedVideo.setPlayer(player); 
     setUpVideoData(); 
    } 

private void setUpVideoData() { 
     // Measures bandwidth during playback. Can be null if not required. 
     DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(); 
     // Produces DataSource instances through which media data is loaded. 
     DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this, 
       Util.getUserAgent(this, "yourApplicationName"), bandwidthMeter); 
     // Produces Extractor instances for parsing the media data. 
     ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory(); 
     // This is the MediaSource representing the media to be played. 
     MediaSource videoSource = new ExtractorMediaSource(Uri.parse(urlToPlay), 
       dataSourceFactory, extractorsFactory, null, null); 
     // Prepare the player with the source. 
     player.prepare(videoSource); 

     // Auto Play video as soon as it buffers 
     player.setPlayWhenReady(true); 
    } 

    @Override 
    public void onPause() { 
     super.onPause(); 
     pauseLivePreview(); 
    } 

    @Override 
    public void onResume() { 
     super.onResume(); 
     resumeLivePreview(); 
    } 

    private void resumeLivePreview() { 
     if (player != null) { 
      player.setPlayWhenReady(true); 
     } 
    } 

    private void pauseLivePreview() { 
     if (player != null) { 
     if (feedVideo != null && feedVideo.getPlayer() != null) { 
      feedVideo.getPlayer().release(); 
     } 
    } 

Refrences https://github.com/google/ExoPlayer https://google.github.io/ExoPlayer/guide.html