def __init__()

in rmac_features.py [0:0]


    def __init__(self, video_path, transforms, fps, image_area):
        self.video_path = video_path
        self.transforms = transforms
        self.root_dir = tempfile.TemporaryDirectory()
        self.root = self.root_dir.name

        FNULL = open(os.devnull, "w")
        call(
            [
                "ffmpeg",
                "-i",
                self.video_path,
                "-filter:v",
                "fps=%f" % fps,
                os.path.join(self.root + "/%07d.jpg"),
            ],
            stderr=FNULL,
        )

        self.images = sorted(os.listdir(self.root))

        self.images = [os.path.join(self.root, i) for i in self.images]
        self.transforms.transforms[0].size = get_scale(self.images[0], image_area)