Reverse
video-reverse
Plays the video in reverse order, from the last frame to the first.
video-reverse accepts a boolean value. When set to true, the output video is the time-reversed version of the source — the final frame becomes the first frame of the output.
Audio, if present, is also reversed. To remove audio from a reversed video, combine with video-remove-audio=true.
For a forward-then-reverse loop effect, use video-boomerang instead.