Running Exoplayer in a service connected to a PlayerView on UI for AnalyticsListener and VideoListener features

Checked Stackoverflow and GitHub issues but could not address my issue directly

I am building an app to analyze live TV video streams and report when a drop, loaderror or other issue is detected. So the app will run on a low profile Android phone (current test phone: Samsung J7 , 1GB RAM , Android 7.1 OS) The phone will run Exoplayer in a service and open a different HLS stream every N seconds (15 seconds at the moment) Then using the AnalyticsListener and VideoListener features it will collect information and events from streams.

When I tried this, I see that VideoListener does not work if the player is not bound to a PlayerView which is visible. Is this correct ? If there is a way to use VideoListener without any visible PlayerView, can you tell me ?

In the worst case, I force the app to leave screen on and disable keyguard, it works. But I have this problem:

Since the player is using the playerview on UI thread I have to release and start an new player every 15 seconds. I use this code:

main service thread:

                    MyService.runOnUI(new Runnable() {
                        public void run() {
                            if (player.getPlaybackState() == Player.STATE_BUFFERING) {
                                //player.release();
                                //startPlayer();
                                reStartPlayer();
                            } else {
                                startPlayer();
                            }
                        }
                    });

                    Handler handler = new Handler(Looper.getMainLooper());
                    Runnable runnableCode = new Runnable() {
                        @Override
                        public void run() {
                            postStat();
                        }
                    };
                    handler.postDelayed(runnableCode, 15000);

so the main thread calls restartPlayer() and then after 15 seconds it uses postStat() function to post collected stats, and goes back to start.

restartPlayer function is like:

 public void reStartPlayer() {
        player.release();
        try {
            Thread.sleep(500);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        player.removeAnalyticsListener(playerAnalyticsListener);
        player.removeVideoListener(playerVideoListener);
        player=null;
        DefaultLoadControl loadControl = new DefaultLoadControl.Builder().setPrioritizeTimeOverSizeThresholds(false).setBufferDurationsMs(2500, 10000, 2500, 2500).build();
        player = new SimpleExoPlayer.Builder(getApplicationContext()).setLoadControl(loadControl).build();
        player.setVolume(0);
        playerAnalyticsListener=new MainAlayticsListenerForService(player);
        player.addAnalyticsListener(playerAnalyticsListener);
        player.addVideoListener(playerVideoListener);
        playerView = myPlayerView();
        playerView.setPlayer(player);
        playerView.requestFocus();

        Uri hlsVideoUri = Uri.parse(currURL);
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this,
                Util.getUserAgent(this, "Test"));
        HlsMediaSource hlsMediaSource = new HlsMediaSource.Factory(dataSourceFactory).createMediaSource(hlsVideoUri);
        player.setPlayWhenReady(true);
        player.prepare(hlsMediaSource);
    }

Now this works, but after some time of running , it stops with following exception:

2020-10-13 12:05:03.339 26492-26513/? W/OpenGLRenderer: swapBuffers encountered EGL error 12301 on 0x9b5cd0e0, halting rendering...
2020-10-13 12:05:03.339 26492-31666/? E/art: ashmem_create_region failed for 'indirect ref table': Too many open files
2020-10-13 12:05:03.340 26492-31666/? W/art: Throwing OutOfMemoryError "Could not allocate JNI Env"
2020-10-13 12:05:03.348 26492-31666/? E/ExoPlayerImplInternal: Playback error
      com.google.android.exoplayer2.ExoPlaybackException: Unexpected runtime error
        at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:564)
        at android.os.Handler.dispatchMessage(Handler.java:98)
        at android.os.Looper.loop(Looper.java:154)
        at android.os.HandlerThread.run(HandlerThread.java:61)
     Caused by: java.lang.OutOfMemoryError: Could not allocate JNI Env
        at java.lang.Thread.nativeCreate(Native Method)
        at java.lang.Thread.start(Thread.java:730)
        at com.google.android.exoplayer2.audio.DefaultAudioSink.flush(DefaultAudioSink.java:1167)
        at com.google.android.exoplayer2.audio.MediaCodecAudioRenderer.onDisabled(MediaCodecAudioRenderer.java:511)
        at com.google.android.exoplayer2.BaseRenderer.disable(BaseRenderer.java:175)
        at com.google.android.exoplayer2.ExoPlayerImplInternal.disableRenderer(ExoPlayerImplInternal.java:1510)
        at com.google.android.exoplayer2.ExoPlayerImplInternal.seekToPeriodPosition(ExoPlayerImplInternal.java:1131)
        at com.google.android.exoplayer2.ExoPlayerImplInternal.seekToPeriodPosition(ExoPlayerImplInternal.java:1095)
        at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMediaSourceListInfoRefreshed(ExoPlayerImplInternal.java:1690)
        at com.google.android.exoplayer2.ExoPlayerImplInternal.setMediaItemsInternal(ExoPlayerImplInternal.java:670)
        at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:505)
        at android.os.Handler.dispatchMessage(Handler.java:98) 
        at android.os.Looper.loop(Looper.java:154) 
        at android.os.HandlerThread.run(HandlerThread.java:61) 
2020-10-13 12:05:03.410 26492-26503/? I/art: Background sticky concurrent mark sweep GC freed 109466(10MB) AllocSpace objects, 10(1856KB) LOS objects, 8% free, 108MB/118MB, paused 22.656ms total 231.827ms

I don’t understand why I get " Too many open files" error because I release the player every 15 seconds before creating a new one. What can I do about this ?

thanks.

[ilker-aktuna]

thanks. I’ve opened a new issue for it. And , now I will close this one if you’ve nothing else to add ?

[marcbaechinger]

This issue tracker is the right place to ask. Best is to create a new issue for this so the title matches the question. This way other user who have a similar question can find it and it’s not off-topic in this issue.

If you open a new issue, it’s helpful to also describe quickly what your use case is. Because then we can probably advice you which callback of the AnalyticsListener is the best to use.