@Override
public void onCameraParametersSetup() {
this.checkCoordinatesRemapRequired();
this.pictureWidth = CameraController.getCameraImageSize().getWidth();
this.pictureHeight = CameraController.getCameraImageSize().getHeight();
this.previewWidth = ApplicationScreen.getPreviewWidth();
this.previewHeight = ApplicationScreen.getPreviewHeight();
try {
this.viewAngleX = CameraController.getHorizontalViewAngle();
this.viewAngleY = CameraController.getVerticalViewAngle();
} catch (final Exception e) {
// Some bugged camera drivers pop ridiculous exception here, use
// typical view angles then
this.viewAngleX = 55.4f;
this.viewAngleY = 42.7f;
}
// some devices report incorrect FOV values, use typical view angles
// then
if (this.viewAngleX >= 150) {
this.viewAngleX = 55.4f;
this.viewAngleY = 42.7f;
}
// Some cameras report incorrect view angles
// Usually vertical view angle is incorrect, but eg Htc One report
// incorrect horizontal view angle
// If aspect ratio from FOV differs by more than 10% from aspect ratio
// from W/H
// - re-compute view angle
float HorizontalViewFromAspect =
2
* 180
* (float)
Math.atan(
(float) this.pictureWidth
/ (float) this.pictureHeight
* (float) Math.tan((float) Math.PI * this.viewAngleY / (2 * 180)))
/ (float) Math.PI;
float VerticalViewFromAspect =
2
* 180
* (float)
Math.atan(
(float) this.pictureHeight
/ (float) this.pictureWidth
* (float) Math.tan((float) Math.PI * this.viewAngleX / (2 * 180)))
/ (float) Math.PI;
// not expecting very narrow field of view
if ((VerticalViewFromAspect > 40.f) && (VerticalViewFromAspect < 0.9f * this.viewAngleY))
this.viewAngleY = VerticalViewFromAspect;
else if ((HorizontalViewFromAspect < 0.9f * this.viewAngleX)
|| (HorizontalViewFromAspect > 1.1f * this.viewAngleX))
this.viewAngleX = HorizontalViewFromAspect;
mSurfacePreviewAugmented.reset(this.pictureHeight, this.pictureWidth, this.viewAngleY);
if (!mPrefHardwareGyroscope) {
mVfGyroscope.SetFrameParameters(
this.previewWidth, this.previewHeight, this.viewAngleX, this.viewAngleY);
}
}
