initial commit and version 1.0

moviepy/video/fx/SuperSample.py

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+from dataclasses import dataclass
+
+import numpy as np
+
+from moviepy.Clip import Clip
+from moviepy.Effect import Effect
+
+
+@dataclass
+class SuperSample(Effect):
+    """Replaces each frame at time t by the mean of `n_frames` equally spaced frames
+    taken in the interval [t-d, t+d]. This results in motion blur.
+    """
+
+    d: float
+    n_frames: int
+
+    def apply(self, clip: Clip) -> Clip:
+        """Apply the effect to the clip."""
+
+        def filter(get_frame, t):
+            timings = np.linspace(t - self.d, t + self.d, self.n_frames)
+            frame_average = np.mean(
+                1.0 * np.array([get_frame(t_) for t_ in timings], dtype="uint16"),
+                axis=0,
+            )
+            return frame_average.astype("uint8")
+
+        return clip.transform(filter)