Make GTK YouTube Viewer use SMPlayer

[TecnoGuy458]

open the config window

find these lines:
mplayer
mplayer_arguments
mplayer_srt_args

delete the arguments on these lines [mplayer_arguments] [mplayer_srt_args] leaving empty quotes ("")

Finally on line [mplayer] replace "/usr/bin/mplayer" with "/usr/bin/smplayer"

that should do it
note: you may be able to use other players that are similar to SMPlayer.

I tried this B/C of the recent YouTube SMPayer glitches