public PointF getOffset(LottieFrameInfo<PointF> frameInfo) {
    if (value == null) {
      throw new IllegalArgumentException("You must provide a static value in the constructor " +
          ", call setValue, or override getValue.");
    }
    return value;
  }
Override this to provide your own offset on every frame.
lottie/src/main/java/com/airbnb/lottie/value/LottieRelativePointValueCallback.java