Question

我正在尝试用ExoPlayer替换视频视图，以便在我的应用中实时流式传输。

我无法在ExoPlayer上找到任何使用videoView.setVideoURI("")替换我的代码和实时视频实现的示例。

任何人都可以帮忙吗？

由于

Answer 1

将以下编译添加到您的gradle：

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

在xml文件中添加以下行：

 <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>

在您的活动中写下celow代码：

    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

Exoplayer v2，直播视频流

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