As a sanity check, I checked the file metadata.
'mediainfo' says this about it: Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Rotation : 90?
So, perhaps the rotation tag is set correctly (not sure what the '?' is about), but neither mplayer nor vlc play it in the desired orientation.
As a sanity check, I checked the file metadata.
'mediainfo' says this about it: Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Rotation : 90?
So, perhaps the rotation tag is set correctly (not sure what the '?' is about), but neither mplayer nor vlc play it in the desired orientation.