https://manpages.ubuntu.com/manpages/bionic/man3/function::user_ushort.3stap.html
Ubuntu Manpage: function::user_ushort - Retrieves an unsigned short value stored in user space
Retrieves an unsigned short value stored in user space
unsigned shortin spaceubuntumanpagefunction
https://docs.unity.com/ja-jp/engine/6000.7/script-reference/unityengine/video/videoplayer/setdirectaudiomute
SetDirectAudioMute(ushort, bool) • Unity Editor • Unity Docs
Set the direct-output audio mute status for the specified track.
ushortboolunityeditordocs