generated from thinkode/modelRepository
32 lines
947 B
Python
32 lines
947 B
Python
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from dataclasses import dataclass
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from moviepy.Clip import Clip
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from moviepy.Effect import Effect
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@dataclass
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class MultiplySpeed(Effect):
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"""Returns a clip playing the current clip but at a speed multiplied by ``factor``.
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Instead of factor one can indicate the desired ``final_duration`` of the clip, and
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the factor will be automatically computed. The same effect is applied to the clip's
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audio and mask if any.
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"""
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factor: float = None
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final_duration: float = None
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def apply(self, clip: Clip) -> Clip:
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"""Apply the effect to the clip."""
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if self.final_duration:
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self.factor = 1.0 * clip.duration / self.final_duration
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new_clip = clip.time_transform(
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lambda t: self.factor * t, apply_to=["mask", "audio"]
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)
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if clip.duration is not None:
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new_clip = new_clip.with_duration(1.0 * clip.duration / self.factor)
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return new_clip
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