Java 类com.google.android.exoplayer2.upstream.DefaultBandwidthMeter 实例源码

/***
 * 创建实例播放实例，并不开始缓冲
 **/
private SimpleExoPlayer createFullPlayer() {
    TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(new DefaultBandwidthMeter());
    TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
    BufferingLoadControl loadControl = new BufferingLoadControl();
    if (null == modelType) {
        setDefaultLoadModel();
    } else {
        loadControl.setListener(new LoadListener() {
            @Override
            public void onProgress(long pro) {
                getPlayerViewListener().showNetSpeed(String.valueOf(pro) + "%");
            }
        });
    }
    DefaultRenderersFactory rf = new DefaultRenderersFactory(activity, drmSessionManager, DefaultRenderersFactory.EXTENSION_RENDERER_MODE_ON);
    SimpleExoPlayer player = ExoPlayerFactory.newSimpleInstance(rf, trackSelector, loadControl);
    player.setPlaybackParameters(playbackParameters);
    getPlayerViewListener().setPlayer(player);
    return player;
}

@Override
public IBinder onBind(final Intent intent) {

    bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory =
            new AdaptiveTrackSelection.Factory(bandwidthMeter);

    dataSourceFactory = new DefaultDataSourceFactory(this,
            Util.getUserAgent(this, "SyncPlayer"), bandwidthMeter);

    extractorsFactory = new DefaultExtractorsFactory();

    TrackSelector trackSelector =
            new DefaultTrackSelector(videoTrackSelectionFactory);

    LoadControl loadControl = new DefaultLoadControl();

    SimpleExoPlayer player =
            ExoPlayerFactory.newSimpleInstance(getApplicationContext(), trackSelector, loadControl);
    mMediaPlayer = player;

    setCompletionListener();
    nbuilder.setSmallIcon(R.mipmap.ic_launcher);
    return mBinder;
}

@Override
public final void onStart(HostActivity host, Surface surface) {
  // Build the player.
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
  trackSelector = buildTrackSelector(host, bandwidthMeter);
  String userAgent = "ExoPlayerPlaybackTests";
  DrmSessionManager<FrameworkMediaCrypto> drmSessionManager = buildDrmSessionManager(userAgent);
  player = buildExoPlayer(host, surface, trackSelector, drmSessionManager);
  player.prepare(buildSource(host, Util.getUserAgent(host, userAgent), bandwidthMeter));
  player.addListener(this);
  player.setAudioDebugListener(this);
  player.setVideoDebugListener(this);
  player.setPlayWhenReady(true);
  actionHandler = new Handler();
  // Schedule any pending actions.
  if (pendingSchedule != null) {
    pendingSchedule.start(player, trackSelector, actionHandler);
    pendingSchedule = null;
  }
}

private void setExoViewSource(@NonNull MasterSecret masterSecret, @NonNull VideoSlide videoSource)
    throws IOException
{
  BandwidthMeter         bandwidthMeter             = new DefaultBandwidthMeter();
  TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter);
  TrackSelector          trackSelector              = new DefaultTrackSelector(videoTrackSelectionFactory);
  LoadControl            loadControl                = new DefaultLoadControl();

  exoPlayer = ExoPlayerFactory.newSimpleInstance(getContext(), trackSelector, loadControl);
  exoView.setPlayer(exoPlayer);

  DefaultDataSourceFactory    defaultDataSourceFactory    = new DefaultDataSourceFactory(getContext(), "GenericUserAgent", null);
  AttachmentDataSourceFactory attachmentDataSourceFactory = new AttachmentDataSourceFactory(getContext(), masterSecret, defaultDataSourceFactory, null);
  ExtractorsFactory           extractorsFactory           = new DefaultExtractorsFactory();

  MediaSource mediaSource = new ExtractorMediaSource(videoSource.getUri(), attachmentDataSourceFactory, extractorsFactory, null, null);

  exoPlayer.prepare(mediaSource);
  exoPlayer.setPlayWhenReady(true);
}

private void setupExoPlayer() {
    TrackSelection.Factory adaptiveTrackSelectionFactory =
            new AdaptiveTrackSelection.Factory(new DefaultBandwidthMeter());

    exoPlayer = ExoPlayerFactory.newSimpleInstance(
            new DefaultRenderersFactory(this),
            new DefaultTrackSelector(adaptiveTrackSelectionFactory),
            new DefaultLoadControl());
    pvVideoPreview.setPlayer(exoPlayer);
    exoPlayer.setPlayWhenReady(true);

    Uri uri = Uri.parse("asset:///sample_video.mp4");
    MediaSource mediaSource = createMediaSource(this, uri);
    LoopingMediaSource loopingMediaSource = new LoopingMediaSource(mediaSource);
    exoPlayer.prepare(loopingMediaSource, true, false);
}

private void initExoPlayer(MediaSource sampleSource) {
  if (exoPlayer == null) {
    TrackSelection.Factory videoTrackSelectionFactory =
        new AdaptiveTrackSelection.Factory(new DefaultBandwidthMeter());
    TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);

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

  exoPlayer.prepare(sampleSource);

  exoPlayer.setVideoSurfaceView(svPlayer);

  exoPlayer.setPlayWhenReady(true);

  initMediaControls();
}

private void initializePlayer() {
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory =
            new AdaptiveTrackSelection.Factory(bandwidthMeter);
    mTrackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);

    mPlayer = ExoPlayerFactory.newSimpleInstance(getActivity(), mTrackSelector);
    mPlayerAdapter = new LeanbackPlayerAdapter(getActivity(), mPlayer, UPDATE_DELAY);
    mPlaylistActionListener = new PlaylistActionListener(mPlaylist);
    mPlayerGlue = new VideoPlayerGlue(getActivity(), mPlayerAdapter, mPlaylistActionListener);
    mPlayerGlue.setHost(new VideoFragmentGlueHost(this));
    mPlayerGlue.playWhenPrepared();

    play(mVideo);

    ArrayObjectAdapter mRowsAdapter = initializeRelatedVideosRow();
    setAdapter(mRowsAdapter);
}

@Override
public DataSource createDataSource() {
    if (null != mCipher) {
        return new MyDefaultDataSource(context, mCipher, mSecretKeySpec, mIvParameterSpec, mTransferListener, baseDataSourceFactory.createDataSource());
    } else if (key != null) {
        return new Encrypted1FileDataSource(key, new DefaultBandwidthMeter());
    } else {
        return new DefaultDataSource(context, new DefaultBandwidthMeter(), baseDataSourceFactory.createDataSource());
    }
}

private static SimpleExoPlayer createPlayer(Context context) {
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter);
    TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);

    return ExoPlayerFactory.newSimpleInstance(context.getApplicationContext(), trackSelector);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (!isPlaying) {
        Handler mainHandler = new Handler();
        BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
        TrackSelection.Factory videoTrackSelectionFactory =
                new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);
        TrackSelector trackSelector =
                new DefaultTrackSelector(videoTrackSelectionFactory);

        LoadControl loadControl = new DefaultLoadControl();

        SimpleExoPlayer player =
                ExoPlayerFactory.newSimpleInstance(MainActivity.this, trackSelector, loadControl);
        SimpleExoPlayerView playerView = (SimpleExoPlayerView) findViewById(R.id.videoView);
        playerView.setPlayer(player);
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(MainActivity.this,
                Util.getUserAgent(MainActivity.this, "yourApplicationName"));
        MediaSource mediaSource = new ExtractorMediaSource(Uri.parse("https://r7---sn-3c27ln7k.googlevideo.com/videoplayback?id=6fb497d0971b8cdf&itag=22&source=picasa&begin=0&requiressl=yes&mm=30&mn=sn-3c27ln7k&ms=nxu&mv=m&nh=IgphcjAzLmticDAxKgkxMjcuMC4wLjE&pl=22&sc=yes&mime=video/mp4&lmt=1486083166327499&mt=1486135406&ip=134.249.158.189&ipbits=8&expire=1486164239&sparams=ip,ipbits,expire,id,itag,source,requiressl,mm,mn,ms,mv,nh,pl,sc,mime,lmt&signature=3BB06D8D4294F8C49B3CE910B3D6849954302BB1.02ABE00700DFCEF715E72D0EFB73B67841E659F8&key=ck2&ratebypass=yes&title=%5BAnime365%5D%20Kuzu%20no%20Honkai%20-%2004%20(t1174045)"), dataSourceFactory,
                new DefaultExtractorsFactory(), null, null);
        player.prepare(mediaSource);
        player.setPlayWhenReady(true);

    }
}

/**
 * 播放启动视频
 */
private void startPlayer() {
    // 0.  set player view
    playerView = (SimpleExoPlayerView) findViewById(R.id.playerView);
    playerView.setUseController(false);
    playerView.getKeepScreenOn();
    playerView.setResizeMode(RESIZE_MODE_FILL);

    // 1. Create a default TrackSelector
    TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(new DefaultBandwidthMeter());
    trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);

    // 2. Create a default LoadControl
    loadControl = new DefaultLoadControl();

    // 3. Create the mPlayer
    mPlayer = ExoPlayerFactory.newSimpleInstance(this, trackSelector, loadControl);
    mPlayer.addListener(this);

    // 4. set player
    playerView.setPlayer(mPlayer);
    mPlayer.setPlayWhenReady(true);

    // 5. prepare to play
    File file = new File(Constants.FILE_VIDEO_FLODER, "jcode.mp4");
    if (file.isFile() && file.exists()) {
        mUri = Uri.fromFile(file);
    } else {
        Toast.makeText(this,"文件未找到",Toast.LENGTH_SHORT).show();
        return;
    }
    ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
    DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this, "UserAgent");
    videoSource = new ExtractorMediaSource(mUri, dataSourceFactory, extractorsFactory, null, null);

    // 6. ready to play
    mPlayer.prepare(videoSource);
}

public PlayerController(Context context) {
    this.bandwidthMeter = new DefaultBandwidthMeter();
    this.loadControl = new DefaultLoadControl();
    this.extractorsFactory = new DefaultExtractorsFactory();
    this.trackSelectionFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter);
    this.dataSourceFactory = new DefaultDataSourceFactory(context, Util.getUserAgent(context.getApplicationContext(), TAG_NAME), (TransferListener<? super DataSource>) bandwidthMeter);
    this.trackSelector = new DefaultTrackSelector(trackSelectionFactory);
    this.player = ExoPlayerFactory.newSimpleInstance(context, this.trackSelector, this.loadControl);
    this.playerView = new PlayerView(context,this.player);
}

private ExoPlayerInstance() {
    this.context = ExpressApplication.getApplication();
    DefaultBandwidthMeter defaultBandwidthMeter = new DefaultBandwidthMeter();
    mainHandler = new Handler();
    defaultExtractorsFactory = new DefaultExtractorsFactory();
    mediaDataSourceFactory = new DefaultDataSourceFactory(context, defaultBandwidthMeter,
            new OkHttpDataSourceFactory(new OkHttpClient.Builder().build(),
                    Util.getUserAgent(context, "Tumbviewer"),
                    defaultBandwidthMeter, CacheControl.FORCE_NETWORK));
    TrackSelection.Factory factory = new AdaptiveTrackSelection.Factory(defaultBandwidthMeter);
    trackSelector = new DefaultTrackSelector(factory);
}

private SimpleExoPlayer createFullPlayer() {
    TrackSelection.Factory videoTrackSelectionFactory
            = new AdaptiveTrackSelection.Factory(new DefaultBandwidthMeter());
    TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
    LoadControl loadControl = new DefaultLoadControl();
    SimpleExoPlayer player = ExoPlayerFactory.newSimpleInstance(
            new DefaultRenderersFactory(playerView.getContext()),
            trackSelector, loadControl);
    player.setPlayWhenReady(true);
    player.prepare(mediaSourceBuilder.getMediaSource(false));
    player.addListener(eventListener);
    return player;
}

private SimpleExoPlayer createFullPlayer() {
    TrackSelection.Factory videoTrackSelectionFactory
            = new AdaptiveTrackSelection.Factory(new DefaultBandwidthMeter());
    TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
    LoadControl loadControl = new DefaultLoadControl();
    SimpleExoPlayer player = ExoPlayerFactory.newSimpleInstance(
            new DefaultRenderersFactory(playerView.getContext()),
            trackSelector, loadControl);
    player.setPlayWhenReady(true);
    player.prepare(mediaSourceBuilder.getMediaSource(false));
    player.addListener(this);
    return player;
}

private TrackSelector createTrackSelector() {
    // Create a default TrackSelector
    // Measures bandwidth during playback. Can be null if not required.
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory =
            new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);
    TrackSelector trackSelector =
            new DefaultTrackSelector(videoTrackSelectionFactory);
    return trackSelector;
}

private MediaSource getMediaSource(String videoUrl) {
        DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
        // Produces DataSource instances through which media data is loaded.
//        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(getContext(), Util.getUserAgent(getContext(), "Loop"), bandwidthMeter);
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(MAVApplication.getInstance().getApplicationContext(), Util.getUserAgent(MAVApplication.getInstance().getApplicationContext(), "Loop"), bandwidthMeter);
        // Produces Extractor instances for parsing the media data.
        ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
        // This is the MediaSource representing the media to be played.
        MediaSource mediaSource = new ExtractorMediaSource(Uri.parse(videoUrl),
                dataSourceFactory, extractorsFactory, null, null);
        // Loops the video indefinitely.
//        LoopingMediaSource loopingSource = new LoopingMediaSource(mediaSource);
        return mediaSource;
    }

private TrackSelector createTrackSelector() {
    // Create a default TrackSelector
    // Measures bandwidth during playback. Can be null if not required.
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory =
            new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);
    TrackSelector trackSelector =
            new DefaultTrackSelector(videoTrackSelectionFactory);
    return trackSelector;
}

private MediaSource getMediaSource(String videoUrl) {
        DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
        // Produces DataSource instances through which media data is loaded.
//        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(getContext(), Util.getUserAgent(getContext(), "Loop"), bandwidthMeter);
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(MAVApplication.getInstance().getApplicationContext(), Util.getUserAgent(MAVApplication.getInstance().getApplicationContext(), "Loop"), bandwidthMeter);
        // Produces Extractor instances for parsing the media data.
        ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
        // This is the MediaSource representing the media to be played.
        MediaSource mediaSource = new ExtractorMediaSource(Uri.parse(videoUrl),
                dataSourceFactory, extractorsFactory, null, null);
        // Loops the video indefinitely.
//        LoopingMediaSource loopingSource = new LoopingMediaSource(mediaSource);
        return mediaSource;
    }

private TrackSelector createTrackSelector() {
    // Create a default TrackSelector
    // Measures bandwidth during playback. Can be null if not required.
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory =
            new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);
    TrackSelector trackSelector =
            new DefaultTrackSelector(videoTrackSelectionFactory);
    return trackSelector;
}

private MediaSource getMediaSource(String videoUrl) {
        DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
        // Produces DataSource instances through which media data is loaded.
//        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this, Util.getUserAgent(this, "Loop"), bandwidthMeter);
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(MAVApplication.getInstance().getApplicationContext(), Util.getUserAgent(MAVApplication.getInstance().getApplicationContext(), "Loop"), bandwidthMeter);
        // Produces Extractor instances for parsing the media data.
        ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
        // This is the MediaSource representing the media to be played.
        MediaSource mediaSource = new ExtractorMediaSource(Uri.parse(videoUrl),
                dataSourceFactory, extractorsFactory, null, null);
        // Loops the video indefinitely.
//        LoopingMediaSource loopingSource = new LoopingMediaSource(mediaSource);
        return mediaSource;
    }

private void initExoPlayer() {
    DefaultBandwidthMeter bwMeter = new DefaultBandwidthMeter();
    AdaptiveTrackSelection.Factory trackFactory = new AdaptiveTrackSelection.Factory(bwMeter);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackFactory);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    videoView.setPlayer(player);

    DataSource.Factory dsFactory = new DefaultDataSourceFactory(getBaseContext(),
            Util.getUserAgent(this, "Traxy"), bwMeter);
    ExtractorsFactory exFactory = new DefaultExtractorsFactory();
    Uri mediaUri = Uri.parse(entry.getUrl());
    MediaSource videoSource = new ExtractorMediaSource(mediaUri,
            dsFactory, exFactory, null, null);
    player.prepare(videoSource);
}

private void initExoPlayer() {
    DefaultBandwidthMeter bwMeter = new DefaultBandwidthMeter();
    AdaptiveTrackSelection.Factory trackFactory = new AdaptiveTrackSelection.Factory(bwMeter);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackFactory);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    videoView.setPlayer(player);

    DataSource.Factory dsFactory = new DefaultDataSourceFactory(getBaseContext(),
            Util.getUserAgent(this, "Traxy"), bwMeter);
    ExtractorsFactory exFactory = new DefaultExtractorsFactory();
    Uri mediaUri = Uri.parse(entry.getUrl());
    MediaSource videoSource = new ExtractorMediaSource(mediaUri,
            dsFactory, exFactory, null, null);
    player.prepare(videoSource);
}

private void initExoPlayer() {
    DefaultBandwidthMeter bwMeter = new DefaultBandwidthMeter();
    AdaptiveTrackSelection.Factory trackFactory = new AdaptiveTrackSelection.Factory(bwMeter);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackFactory);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    videoView.setPlayer(player);

    DataSource.Factory dsFactory = new DefaultDataSourceFactory(getBaseContext(),
            Util.getUserAgent(this, "Traxy"), bwMeter);
    ExtractorsFactory exFactory = new DefaultExtractorsFactory();
    Uri mediaUri = Uri.parse(entry.getUrl());
    MediaSource videoSource = new ExtractorMediaSource(mediaUri,
            dsFactory, exFactory, null, null);
    player.prepare(videoSource);
}

private void initExoPlayer() {
    DefaultBandwidthMeter bwMeter = new DefaultBandwidthMeter();
    AdaptiveTrackSelection.Factory trackFactory = new AdaptiveTrackSelection.Factory(bwMeter);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackFactory);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    videoView.setPlayer(player);

    DataSource.Factory dsFactory = new DefaultDataSourceFactory(getBaseContext(),
            Util.getUserAgent(this, "Traxy"), bwMeter);
    ExtractorsFactory exFactory = new DefaultExtractorsFactory();
    Uri mediaUri = Uri.parse(entry.getUrl());
    MediaSource videoSource = new ExtractorMediaSource(mediaUri,
            dsFactory, exFactory, null, null);
    player.prepare(videoSource);
}

private void initExoPlayer() {
    DefaultBandwidthMeter bwMeter = new DefaultBandwidthMeter();
    AdaptiveTrackSelection.Factory trackFactory = new AdaptiveTrackSelection.Factory(bwMeter);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackFactory);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    videoView.setPlayer(player);

    DataSource.Factory dsFactory = new DefaultDataSourceFactory(getBaseContext(),
            Util.getUserAgent(this, "Traxy"), bwMeter);
    ExtractorsFactory exFactory = new DefaultExtractorsFactory();
    Uri mediaUri = Uri.parse(entry.getUrl());
    MediaSource videoSource = new ExtractorMediaSource(mediaUri,
            dsFactory, exFactory, null, null);
    player.prepare(videoSource);
}

private MediaSource createMediaSource(Context context, Uri uri) {
    DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(context,
            Util.getUserAgent(context, context.getPackageName()), bandwidthMeter);
    DefaultExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
    return new ExtractorMediaSource(uri,
            dataSourceFactory,
            extractorsFactory,
            null,
            null);
}

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

    setSupportActionBar(toolbar);
    window = getWindow();

    if (getSupportActionBar() != null) {
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }

    channelList = new SortableJsonChannelList(this);

    // player
    DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter);
    TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
    dataSourceFactory = new DefaultDataSourceFactory(this,
        Util.getUserAgent(this, getString(R.string.app_name)), bandwidthMeter);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    player.addListener(bufferingHandler);
    player.addListener(videoErrorHandler);
    videoView.setPlayer(player);

    // pager
    channelDetailAdapter = new ChannelDetailAdapter(
        getSupportFragmentManager(), channelList, onItemChangedListener);
    viewPager.setAdapter(channelDetailAdapter);
    viewPager.addOnPageChangeListener(onPageChangeListener);
    viewPager.setOnClickListener(view -> mContentView.performClick());

    parseIntent(getIntent());
}

@Override
public void prepareAsync() throws IllegalStateException {
    if (mInternalPlayer != null)
        throw new IllegalStateException("can't prepare a prepared player");
    TrackSelection.Factory videoTrackSelectionFactory =
            new AdaptiveTrackSelection.Factory(new DefaultBandwidthMeter());
    mTrackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);

    mEventLogger = new EventLogger(mTrackSelector);

    boolean preferExtensionDecoders = true;
    boolean useExtensionRenderers = true;//是否开启扩展
    @DefaultRenderersFactory.ExtensionRendererMode int extensionRendererMode = useExtensionRenderers
            ? (preferExtensionDecoders ? DefaultRenderersFactory.EXTENSION_RENDERER_MODE_PREFER
            : DefaultRenderersFactory.EXTENSION_RENDERER_MODE_ON)
            : DefaultRenderersFactory.EXTENSION_RENDERER_MODE_OFF;

    renderersFactory = new DefaultRenderersFactory(mAppContext, null, extensionRendererMode);
    DefaultLoadControl loadControl = new DefaultLoadControl();
    mInternalPlayer = new SimpleExoPlayer2(renderersFactory, mTrackSelector, loadControl);
    mInternalPlayer.addListener(this);
    mInternalPlayer.setVideoDebugListener(this);
    mInternalPlayer.setAudioDebugListener(this);
    mInternalPlayer.addListener(mEventLogger);
    if (mSpeedPlaybackParameters != null) {
        mInternalPlayer.setPlaybackParameters(mSpeedPlaybackParameters);
    }
    if (mSurface != null)
        mInternalPlayer.setVideoSurface(mSurface);

    mInternalPlayer.prepare(mMediaSource);
    mInternalPlayer.setPlayWhenReady(false);
}

private DataSource.Factory getHttpDataSourceFactory(boolean preview) {
    DefaultHttpDataSourceFactory dataSourceFactory = new DefaultHttpDataSourceFactory(Util.getUserAgent(mAppContext,
            TAG), preview ? null : new DefaultBandwidthMeter());
    if (mHeaders != null && mHeaders.size() > 0) {
        for (Map.Entry<String, String> header : mHeaders.entrySet()) {
            dataSourceFactory.getDefaultRequestProperties().set(header.getKey(), header.getValue());
        }
    }
    return dataSourceFactory;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_player);

    media = (MediaFile) getIntent().getSerializableExtra(MEDIA);

    videoFragment = (VideoFragment) getFragmentManager().findFragmentById(R.id.playback_fragment);
    VideoFragmentGlueHost glueHost = new VideoFragmentGlueHost(videoFragment);

    subtitleView = (SubtitleView) findViewById(R.id.subtitle_view);
    if (subtitleView != null) {
        subtitleView.setUserDefaultStyle();
        subtitleView.setUserDefaultTextSize();
    }

    Handler mainHandler = new Handler();
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);
    MappingTrackSelector trackSelector = new DefaultTrackSelector(mainHandler, videoTrackSelectionFactory);
    LoadControl loadControl = new DefaultLoadControl();
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector, loadControl);
    player.addListener(this);
    player.setTextOutput(this);

    glueHelper = new ExoPlayerGlue(player, trackSelector, this);
    glueHelper.setHost(glueHost);

    session = new MediaSession(this, "ITPlayer");
    session.setCallback(new ExoPlayerMediaSessionCalback(player));
    session.setFlags(MediaSession.FLAG_HANDLES_MEDIA_BUTTONS | MediaSession.FLAG_HANDLES_TRANSPORT_CONTROLS);
    session.setActive(true);

    MediaMetadata.Builder metaBuilder = new MediaMetadata.Builder();
    session.setMetadata(metaBuilder.build());

    new SourceTask().execute(media);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_playlist);
    createDummyList();
    simpleExoPlayerView = (SimpleExoPlayerView) findViewById(R.id.player_view);
    mainHandler = new Handler();
    bandwidthMeter = new DefaultBandwidthMeter();
    mediaDataSourceFactory = new DefaultDataSourceFactory(this, Util.getUserAgent(this,null));
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_video_player);

    shouldAutoPlay = true;
    bandwidthMeter = new DefaultBandwidthMeter();
    mediaDataSourceFactory = new DefaultDataSourceFactory(this, Util.getUserAgent(this, "mediaPlayerSample"), (TransferListener<? super DataSource>) bandwidthMeter);
    window = new Timeline.Window();
    ivHideControllerButton = (ImageView) findViewById(R.id.exo_controller);

}

private TrackSelector createTrackSelector(){
    // Create a default TrackSelector
    // Measures bandwidth during playback. Can be null if not required.
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory =
            new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);
    TrackSelector trackSelector =
            new DefaultTrackSelector(videoTrackSelectionFactory);
    return trackSelector;
}

private MediaSource getMediaSource(String videoUrl){
        DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
        // Produces DataSource instances through which media data is loaded.
//        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(getContext(), Util.getUserAgent(getContext(), "Loop"), bandwidthMeter);
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(LoopApplication.getInstance().getApplicationContext(), Util.getUserAgent(LoopApplication.getInstance().getApplicationContext(), "Loop"), bandwidthMeter);
        // Produces Extractor instances for parsing the media data.
        ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
        // This is the MediaSource representing the media to be played.
        MediaSource mediaSource = new ExtractorMediaSource(Uri.parse(videoUrl),
                dataSourceFactory, extractorsFactory, null, null);
        // Loops the video indefinitely.
//        LoopingMediaSource loopingSource = new LoopingMediaSource(mediaSource);
        return mediaSource;
    }

public PlayerManager(Context context) {
  String adTag = context.getString(R.string.ad_tag_url);
  adsLoader = new ImaAdsLoader(context, Uri.parse(adTag));
  manifestDataSourceFactory =
      new DefaultDataSourceFactory(
          context, Util.getUserAgent(context, context.getString(R.string.application_name)));
  mediaDataSourceFactory =
      new DefaultDataSourceFactory(
          context,
          Util.getUserAgent(context, context.getString(R.string.application_name)),
          new DefaultBandwidthMeter());
}

public void init(Context context, SimpleExoPlayerView simpleExoPlayerView) {
  // Create a default track selector.
  BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
  TrackSelection.Factory videoTrackSelectionFactory =
      new AdaptiveTrackSelection.Factory(bandwidthMeter);
  TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);

  // Create a player instance.
  player = ExoPlayerFactory.newSimpleInstance(context, trackSelector);

  // Bind the player to the view.
  simpleExoPlayerView.setPlayer(player);

  // Produces DataSource instances through which media data is loaded.
  DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(context,
      Util.getUserAgent(context, context.getString(R.string.application_name)));

  // This is the MediaSource representing the content media (i.e. not the ad).
  String contentUrl = context.getString(R.string.content_url);
  MediaSource contentMediaSource =
      new ExtractorMediaSource.Factory(dataSourceFactory)
          .createMediaSource(Uri.parse(contentUrl));

  // Compose the content media source into a new AdsMediaSource with both ads and content.
  MediaSource mediaSourceWithAds =
      new AdsMediaSource(
          contentMediaSource,
          /* adMediaSourceFactory= */ this,
          adsLoader,
          simpleExoPlayerView.getOverlayFrameLayout(),
          /* eventHandler= */ null,
          /* eventListener= */ null);

  // Prepare the player with the source.
  player.seekTo(contentPosition);
  player.prepare(mediaSourceWithAds);
  player.setPlayWhenReady(true);
}

@Override
public final void onStart(HostActivity host, Surface surface) {
  this.surface = surface;
  // Build the player.
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
  trackSelector = buildTrackSelector(host, bandwidthMeter);
  String userAgent = "ExoPlayerPlaybackTests";
  DrmSessionManager<FrameworkMediaCrypto> drmSessionManager = buildDrmSessionManager(userAgent);
  player = buildExoPlayer(host, surface, trackSelector, drmSessionManager);
  player.prepare(buildSource(host, Util.getUserAgent(host, userAgent), bandwidthMeter));
  if (playerEventListener != null) {
    player.addListener(playerEventListener);
  }
  if (videoDebugListener != null) {
    player.addVideoDebugListener(videoDebugListener);
  }
  if (audioDebugListener != null) {
    player.addAudioDebugListener(audioDebugListener);
  }
  player.addListener(this);
  player.addAudioDebugListener(this);
  player.addVideoDebugListener(this);
  player.setPlayWhenReady(true);
  actionHandler = new Handler();
  // Schedule any pending actions.
  if (pendingSchedule != null) {
    pendingSchedule.start(player, trackSelector, surface, actionHandler);
    pendingSchedule = null;
  }
}

@Override
public void onCreate() {
    Log.d("MediaService", "OnCreate");
    // Load controls
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

    TrackSelection.Factory videoFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter);
    TrackSelector trackSelector = new DefaultTrackSelector(videoFactory);
    LoadControl loadControl = new DefaultLoadControl();

    // Create Player
    player = ExoPlayerFactory.newSimpleInstance(getApplicationContext(),
            trackSelector, loadControl);

}

CacheDataSourceFactory(Context context, long maxCacheSize, long maxFileSize) {
    super();
    this.context = context;
    this.maxCacheSize = maxCacheSize;
    this.maxFileSize = maxFileSize;
    String userAgent = Util.getUserAgent(context, context.getString(R.string.app_name));
    DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    defaultDatasourceFactory = new DefaultDataSourceFactory(this.context, bandwidthMeter,
            new DefaultHttpDataSourceFactory(userAgent, bandwidthMeter));
}