TODO
Create excerpts from a video using mpv's encoding feature.
Attempts to preserve settings of the current mpv instance for encoding (like selected edition, selected video/audio/subtitle track, audio or subtitle delay).
Create a start mark with Alt+i, an end mark with Alt+o and start the encode with Alt+x.
Control audio pitch in semitone steps. Alt+P increases, Alt+p decreases by one semitone each.