It's a really old program of mine, written in PHP to resume playback by following the output of mplayer's slave mode. Doesn't work anymore, and I have zero interest in maintaining it. Users looking for playback, use mpv, which uses it by default.
# Steve Dibb <beandog@gentoo.org> (22 Feb 2018) # Very old project of mine, hasn't worked in years, no plans to # support, and mpv can provide resume playback by default. # Masked for removal in 30 days. Bug #648568 media-video/mplayer-resume
removed