def hash_thesubdb(video_path):
    readsize = 64 * 1024
    if os.path.getsize(video_path) < readsize:
        return
    with open(video_path, 'rb') as f:
        data = f.read(readsize)
        f.seek(-readsize, os.SEEK_END)
        data += f.read(readsize)

    return hashlib.md5(data).hexdigest()
Given a robol model, returns a vtkTransform at a position between
dataset/ETHPy150Open Diaoul/subliminal/subliminal/video.py/hash_thesubdb--crossover with--dataset/ETHPy150Open RobotLocomotion/director/src/python/director/bihandeddemo.py/BihandedPlannerDemo.computeGroundFrame