$ mplayer foo.mp4 | grep '^VO: ' VO: [gl] ... $ mpv foo.mp4 | grep '^VO: ' VO: [opengl]See 'mplayer -vo help' and 'mpv -vo help'. HTH, -dnh
Thanks. It seems that mplayer is using "xv" and mpv uses "opengl-hq". mpv work ok with "xv" but quality degrades a little, or at least I think that it does.