updateAsync method

Future<(bool, Rect)> updateAsync(
  1. Mat img
)

Update the tracker, find the new most likely bounding box for the target. https://docs.opencv.org/4.x/d0/d0a/classcv_1_1Tracker.html#a92d2012f576e6c06eb2e257d110a6529

Implementation

Future<(bool, Rect)> updateAsync(Mat img) async {
  final bBox = calloc<cvg.CvRect>();
  final p = calloc<ffi.Bool>();
  return cvRunAsync0((callback) => cvideo.cv_TrackerMIL_update(ref, img.ref, bBox, p, callback), (c) {
    final rval = (p.value, Rect.fromPointer(bBox));
    calloc.free(p);
    return c.complete(rval);
  });
}