Customize the look-ahead buffer

Set the buffer size of media.


Look-ahead buffer customization allows the size of a buffer of the media to download before beginning playback to be specified. Smaller buffers will start playback more quickly but will be more prone to pausing playback to buffer if the connection is not stable.

As shown in the following example, you can customize the look-ahead buffer size by creating an object that implements com.google.android.exoplayer2.LoadControl and passing that object through ExoPlayerSettings.


// Create a LoadControl object
LoadControl loadControl = new LoadControl() {
    @Override
    public void onPrepared() {

    }

    @Override
    public void onTracksSelected(Renderer[] renderers, TrackGroupArray trackGroups, ExoTrackSelection[] trackSelections) {

    }

    @Override
    public void onStopped() {

    }

    @Override
    public void onReleased() {

    }

    @Override
    public Allocator getAllocator() {
        return null;
    }

    @Override
    public long getBackBufferDurationUs() {
        return 0;
    }

    @Override
    public boolean retainBackBufferFromKeyframe() {
        return false;
    }

    @Override
    public boolean shouldContinueLoading(long playbackPositionUs, long bufferedDurationUs, float playbackSpeed) {
        return false;
    }

    @Override
    public boolean shouldStartPlayback(long bufferedDurationUs, float playbackSpeed, boolean rebuffering, long targetLiveOffsetUs) {
        return false;
    }
};
// Set it up to the player right before JWPlayer#setup() is called
player.getExoPlayerSettings().setLoadControl(loadControl);
// Setup the player config
PlayerConfig playerConfig = new PlayerConfig.Builder()
        //...
        .build();
player.setup(playerConfig);


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