avplay is a minimalistic player mainly used to test Libav.
It is possible to use avfilter in avplay to preview the result of a filter chain on a certain input (single input).
# avplay -vf filter file
avplay by default does not closes itself when a stream terminates, to change the behaviour use -autoexit
# avplay -autoexit file
Not decode video/audio
# avplay -vn file # avplay -an file
Do not display the audio spectrum
# avplay -nodisp -vn file