docs: public boolean setUpCameraForVrMode(final int fpsMode) {
  
          cameraSetUpStatus = false;
          this.fpsMode = fpsMode;
  
          if (!isCameraOpen) {
              Log.e(TAG, "Camera is not open");
              return false;
          }
          if (fpsMode < 0 || fpsMode > 2) {
              Log.e(TAG,
                      "Invalid fpsMode: %d. It can only take values 0, 1, or 2.", fpsMode);
          } else {
              Parameters params = camera.getParameters();
  
              // check if the device supports vr mode preview
              if ("true".equalsIgnoreCase(params.get("vrmode-supported"))) {
  
                  Log.v(TAG, "VR Mode supported!");
  
                  // set vr mode
                  params.set("vrmode", 1);
  
                  // true if the apps intend to record videos using
                  // MediaRecorder
                  params.setRecordingHint(true);
  
                  // set preview size
                  // params.setPreviewSize(640, 480);
  
                  // set fast-fps-mode: 0 for 30fps, 1 for 60 fps,
                  // 2 for 120 fps
                  params.set("fast-fps-mode", fpsMode);
  
                  switch (fpsMode) {
                      case 0: // 30 fps
                          params.setPreviewFpsRange(30000, 30000);
                          break;
                      case 1: // 60 fps
                          params.setPreviewFpsRange(60000, 60000);
                          break;
                      case 2: // 120 fps
                          params.setPreviewFpsRange(120000, 120000);
                          break;
                      default:
                  }
  
                  // for auto focus
                  params.set("focus-mode", "continuous-video");
  
                  params.setVideoStabilization(false);
                  if ("true".equalsIgnoreCase(params.get("ois-supported"))) {
                      params.set("ois", "center");
                  }
  
                  camera.setParameters(params);
                  cameraSetUpStatus = true;
              }
          }
  
          return cameraSetUpStatus;
      }