Simple mpv script to easily customize random playlist song selection.
Every file initially has a 'rating' of 0.5. Using the upvote/downvote keybindings, the rating of the currently playing file can be increased by decreased by 0.5.
Use the shortcut Alt+r (by default) to advance to a new file from the rated files, randomly selected weighted on its rating.
Place ratings-based-shuffle.lua in your ~/.config/mpv/scripts.
Copy ratings-based-shuffle.conf into ~/.config/mpv/script-opts and adjust the option values: set directory to the location of the files you want to play. Ratings will be saved in the file specified by ratings_file. Example:
directory=/home/username/Music/BigPlaylist
ratings_file=/home/username/.config/mpv/rbs-ratings.txt
Set up the keybindings in your input.conf (usually located in ~/.config/mpv) as per the example in input.conf