Ether when playing a non playable file:
mplayer file.txt
or when playing a non-existing file:
mplayer i-dont-exist.mp4
mplayer does not return 1 or other error status.
e.g.:
$ mplayer movie.mp4
MPlayer 1.2.1-4.9.4 (C) 2000-2016 MPlayer Team
3DNow supported but disabled
3DNowExt supported but disabled
Playing movie.mp4.
File not found: 'movie.mp4'
Failed to open movie.mp4.
Exiting... (End of file)
$ echo $?
0
$ mplayer movie.mp4 || echo "Error"
MPlayer 1.2.1-4.9.4 (C) 2000-2016 MPlayer Team
3DNow supported but disabled
3DNowExt supported but disabled
