/usr/share/mplayer/skins/Blue/symbols.fnt is in mplayer-skin-blue 1.11-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | ;image=file
image=symbols2
;"character"=x,y,width,height
"p"= 205,0,9,8 ; play symbol
"e"=215,0,9,8 ; pause symbol
":"=224,0,4,8
"s"=195,0,9,8 ; stop symbol
"f"=1,0,22,8 ; file: f
"v"=56,0,22,8 ; video cd
; "?"=86,0,32,8 ; super video cd (svcd)
"d"=26,0,22,8 ; dvd
"u"=124,0,22,8 ; url
"a"=64,0,22,8 ; cd
"b"=255,0,22,8 ; tv/dvb
;"n"=185,0,9,8 ; no sound symbol
"n"=228,0,9,8 ; no sound symbol
"m"=150,0,9,8 ; mono symbol
"t"=160,0,15,8 ; stereo symbol
"r"=240,0,12,8 ; surround symbol
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