9c7e93ecf8
Allows for ranked preferences for h264, av1, and vp9 codecs in settings, along with equal preferences which are tiebroken using smaller file size. For each quality, gives av-merge a list of video sources and audio sources sorted based on preference & file size. It will pick the first one that the browser supports. Closes #84 Signed-off-by: Jesús <heckyel@hyperbola.info>