20210614 By flipping a video horizontally the result
will be the mirror of the original video. Using
ffmpeg, the input video is identified using
Video filtering is introduced with
-vf as a shorthand for
-filter:v. A hflip is provided as the argument to the video
filtering. The audio is kept as it is with
-c:a. The video is copied
to the output video file.
$ ffmpeg -i input.mp4 -vf hflip -c:a copy OUTPUT.mp4
A vertical flip will turn the video upside down and is achieved by a vflip filter.
$ ffmpeg -i input.mp4 -vf vflip -c:a copy OUTPUT.mp4
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