Waveform Monitor

Given source video:

Lowpass filter

ffplay video -vf waveform=filter=lowpass:scale=ire:graticule=green:flags=numbers+dots

Flat filter

ffplay video -vf waveform=filter=flat:scale=ire:graticule=green:flags=numbers+dots

Aflat filter

ffplay video -vf waveform=filter=aflat:scale=ire:graticule=green:flags=numbers+dots

Chroma filter

ffplay video -vf waveform=filter=chroma:scale=ire:graticule=green:flags=numbers+dots

Color filter

ffplay video -vf waveform=filter=color:scale=ire:graticule=green:flags=numbers+dots

Acolor filter

ffplay video -vf waveform=filter=acolor:scale=ire:graticule=green:flags=numbers+dots

YCbCr parade

ffplay video -vf waveform=filter=lowpass:scale=ire:graticule=green:flags=numbers+dots:components=7:display=parade

RGB parade

ffplay video -vf format=gbrp,waveform=filter=lowpass:components=7:display=parade

RGB overlay

ffplay video -vf format=gbrp,waveform=filter=lowpass:components=7:display=overlay

Waveform overlaid on top of video

ffplay video -vf "split=2[a][b],[b]waveform=g=green:s=ire:fl=15:i=.1:f=chroma:bgopacity=.5,format=yuva444p[bb],[a][bb]overlay"