generated from thinkode/modelRepository
65 lines
1.8 KiB
Python
65 lines
1.8 KiB
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 SlideOut(Effect):
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"""Makes the clip goes away by one side of the screen.
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Only works when the clip is included in a CompositeVideoClip,
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and if the clip has the same size as the whole composition.
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Parameters
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----------
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clip : moviepy.Clip.Clip
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A video clip.
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duration : float
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Time taken for the clip to be fully visible
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side : str
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Side of the screen where the clip goes. One of
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'top', 'bottom', 'left' or 'right'.
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Examples
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--------
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.. code:: python
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from moviepy import *
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clips = [... make a list of clips]
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slided_clips = [
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CompositeVideoClip([clip.with_effects([vfx.SlideOut(1, "left")])])
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for clip in clips
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]
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final_clip = concatenate_videoclips(slided_clips, padding=-1)
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clip = ColorClip(
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color=(255, 0, 0), duration=1, size=(300, 300)
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).with_fps(60)
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final_clip = CompositeVideoClip([clip.with_effects([vfx.SlideOut(1, "right")])])
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"""
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duration: float
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side: str
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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 clip.duration is None:
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raise ValueError("Attribute 'duration' not set")
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w, h = clip.size
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ts = clip.duration - self.duration # start time of the effect.
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pos_dict = {
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"left": lambda t: (min(0, w * (-(t - ts) / self.duration)), "center"),
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"right": lambda t: (max(0, w * ((t - ts) / self.duration)), "center"),
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"top": lambda t: ("center", min(0, h * (-(t - ts) / self.duration))),
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"bottom": lambda t: ("center", max(0, h * ((t - ts) / self.duration))),
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}
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return clip.with_position(pos_dict[self.side])
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