public void SetKeyFrameMap(SortedDictionary <long, long> map)
{
var mappingData = new List <IntPtr>();
foreach (var mapping in map)
{
mappingData.Add(new IntPtr(mapping.Key));
mappingData.Add(new IntPtr(mapping.Value));
}
RubberBandNativeMethods.RubberBandStretcher_SetKeyFrameMap(_rbs, mappingData.ToArray(), mappingData.Count / 2);
}