I have installed a fresh Desktop Legacy 3.4.113 Ubuntu Xenial from https://www.armbian.com/banana-pi/ and when I try to play a video I get this error:
m@bananapi:~$ mpv lazy-dachshund.mov
Playing: lazy-dachshund.mov
(+) Video --vid=1 (*) (h264)
(+) Audio --aid=1 --alang=und (*) (aac)
Failed to open VDPAU backend libvdpau_sunxi.so: cannot open shared object file: No such file or directory
[vo/vdpau] Error when calling vdp_device_create_x11: 1
Error opening/initializing the selected video_out (-vo) device.
Video: no video
AO: [pulse] 44100Hz mono 1ch float
A: 00:00:08 / 00:00:09 (88%)
I have not used apt, I only used preinstalled software (wget and mpv)