[FFmpeg-user] example for sendcmd color

[Basin Ilya]

Hi.

What's the syntax for sendcmd to change color?
I tried:

    ffplay -f lavfi -i color=s=640x480:r=25:c=blue -vf "sendcmd=c='1.0
color c red',color"

and

    ffplay -f lavfi "sendcmd=c='1.0 color c
red',color=s=640x480:r=25:c=blue"

but it says: "Too many inputs specified for the "color" filter."