title: How to make display stereoscopic from monoscopic in exoplayer at android studio?
body: <p>I'm trying to make stereoscopic video player in android.</p>
  <p>but from this code, I tried copy the same simpleExoplayer instance to playerview.setPlayer functions like below.</p>
  <pre><code>    playerView = findViewById(R.id.player_view);
      playerViewL = findViewById(R.id.player_viewL);
      playerViewR = findViewById(R.id.player_viewR); 
      // exoPlayer = new ExoPlayer().
      simpleExoPlayer1 = new SimpleExoPlayer.Builder(this).build();
      playerView.setPlayer(simpleExoPlayer1); 
      playerViewL.setPlayer(simpleExoPlayer1); 
      playerViewR.setPlayer(simpleExoPlayer1); 
      simpleExoPlayer1.setRepeatMode(simpleExoPlayer1.REPEAT_MODE_ALL);
  </code></pre>
  <p>but this code cannot play same on triple playerview. so I wrote a new code like below.</p>
  <pre><code>    playerView = findViewById(R.id.player_view);
      playerViewL = findViewById(R.id.player_viewL);
      playerViewR = findViewById(R.id.player_viewR); 
      // exoPlayer = new ExoPlayer().
      simpleExoPlayer1 = new SimpleExoPlayer.Builder(this).build();
      simpleExoPlayer2 = new SimpleExoPlayer.Builder(this).build();
      simpleExoPlayer3 = new SimpleExoPlayer.Builder(this).build();
      playerView.setPlayer(simpleExoPlayer1); 
      playerViewL.setPlayer(simpleExoPlayer2); 
      playerViewR.setPlayer(simpleExoPlayer3); 
      simpleExoPlayer1.setRepeatMode(simpleExoPlayer1.REPEAT_MODE_ALL);
      simpleExoPlayer2.setRepeatMode(simpleExoPlayer2.REPEAT_MODE_ALL);
      simpleExoPlayer3.setRepeatMode(simpleExoPlayer3.REPEAT_MODE_ALL);
  </code></pre>
  <p>but from this code, their playing video was not sync for each..</p>
  <p>I want make this playerview's sync matching and play. how do I for best?</p>
  <p>please reply to me for some help.</p>
  <p>thanks.</p>