How do I get a Surface to run a video using Exoplayer?

Question

I need to run video on my Android app using Exoplayer, a google project that allows DASH, persistent cache. Official Project Page here

However, the method exoPlayer.sendMessage has a class parameter Surface, but I couldn’t find this kind of view, so I used VideoSurfaceView, but it didn’t work. Follow code and Logcat.

Logcat:

05-07 21:30:10.438    7616-7630/com.promobile.vod.vodmobile E/ExoPlayerImplInternal﹕ Internal runtime error.
java.lang.ClassCastException: com.google.android.exoplayer.VideoSurfaceView cannot be cast to android.view.Surface
        at com.google.android.exoplayer.MediaCodecVideoTrackRenderer.handleMessage(MediaCodecVideoTrackRenderer.java:331)
        at com.google.android.exoplayer.ExoPlayerImplInternal.sendMessageInternal(ExoPlayerImplInternal.java:540)
        at com.google.android.exoplayer.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:219)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:137)
        at android.os.HandlerThread.run(HandlerThread.java:60)
        at com.google.android.exoplayer.util.PriorityHandlerThread.run(PriorityHandlerThread.java:40)

Code Mainactivity.java

   protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    setParameters();

    builderExoPlayer();
}

private void setParameters() {
    videoSurfaceView = (VideoSurfaceView) findViewById(R.id.surface);
}

private void builderExoPlayer() {
    int numRenderers = 2;
    Uri URI = Uri.parse("http://www.semanticdevlab.com/abc.mp4");

    SampleSource sampleSource = new DefaultSampleSource(new FrameworkSampleExtractor(getApplicationContext(), URI, null), numRenderers);

    TrackRenderer videoTrackRenderer = new MediaCodecVideoTrackRenderer(sampleSource, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT);
    TrackRenderer audioTrackRenderer = new MediaCodecAudioTrackRenderer(sampleSource);

    ExoPlayer exoPlayer = ExoPlayer.Factory.newInstance(numRenderers);

    exoPlayer.prepare(videoTrackRenderer, audioTrackRenderer);

    exoPlayer.sendMessage(videoTrackRenderer, MediaCodecVideoTrackRenderer.MSG_SET_SURFACE, videoSurfaceView);

    exoPlayer.setPlayWhenReady(true);
}

code activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

<TextView android:text="@string/hello_world" android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

<com.google.android.exoplayer.VideoSurfaceView
    android:id="@+id/surface"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

How do I get this Surface to run Exoplayer?

Answer 1

Try to get Surface how it is done in the official page demo application you quoted:

exoPlayer.sendMessage(videoTrackRenderer, MediaCodecVideoTrackRenderer.MSG_SET_SURFACE,
         videoSurfaceView.getHolder().getSurface());

Note that according to the documentation of Surfaceview, the object SurfaceHolder returned by getHolder() may not be available immediately; it may be necessary to implement callbacks surfaceCreated(SurfaceHolder) and surfaceDestroyed(SurfaceHolder).