Noé Malais

(fix) escape dashes in the beginning of filenames in ffmpeg commands

1

This PR fixes https://github.com/Zulko/moviepy/issues/2160. Filenames that starts with dash '-' are no longer interpreted as command line arguments by ffmpeg - [x] I have provided code that clearly demonstrates the...

There is a bug in CompositeVideoClip, See comment below : _Originally posted by @TheSpaceSheep in https://github.com/Zulko/moviepy/pull/1342#discussion_r1581306530_

#### Minimal reproducible example : ``` from moviepy.editor import * clip = ColorClip((640, 480), color=(0, 0, 0), duration=5) clip.write_videofile("-filenamethatbeginswith-.webm", fps=24) ``` #### Expected Behavior write to a video file with...