user:~$ mpv "https://www.youtube.com/watch?v=le0BLAEO93g"
(+) Video --vid=1 (*) (h264 960x720 29.970fps)
(+) Audio --aid=1 --alang=eng (*) (aac 2ch 44100Hz)
Failed to open VDPAU backend mpv: Shared object "libvdpau_nvidia.so" not found
[vo/vdpau] Error when calling vdp_device_create_x11: 1
[vo/xv] Warning: this legacy VO has bad quality and performance, and will in particular result in blurry OSD and subtitles. You should fix your graphics drivers, or not force the xv VO.
AO: [sdl] 44100Hz stereo 2ch s32
VO: [xv] 960x720 yuv420p
AV: 00:00:00 / 00:03:33 (0%) A-V: 0.000 Cache: 2.6s/363KB
[vo/xv] X11 can't keep up! Waiting for XShm completion events...
AV: 00:00:01 / 00:03:33 (1%) A-V: 0.000 Cache: 12s/1MB
(+) Video --vid=1 (*) (h264 960x720 29.970fps)
(+) Audio --aid=1 --alang=eng (*) (aac 2ch 44100Hz)
Failed to open VDPAU backend mpv: Shared object "libvdpau_nvidia.so" not found
[vo/vdpau] Error when calling vdp_device_create_x11: 1
[vo/xv] Warning: this legacy VO has bad quality and performance, and will in particular result in blurry OSD and subtitles. You should fix your graphics drivers, or not force the xv VO.
AO: [sdl] 44100Hz stereo 2ch s32
VO: [xv] 960x720 yuv420p
AV: 00:00:00 / 00:03:33 (0%) A-V: 0.000 Cache: 2.6s/363KB
[vo/xv] X11 can't keep up! Waiting for XShm completion events...
AV: 00:00:01 / 00:03:33 (1%) A-V: 0.000 Cache: 12s/1MB