EBU safe areas for ffplay

[MarcoRavich]

Hi there, thanks for this cool list !

In this interesting discussion about near-zero latency multiple (IP) video-streams playing we drived ChatGPT to create an ffplay commandline that draws dynamically-adaptable "EBU-compliant video safe areas":

ffplay -vf "drawbox=x=(iw-(iw*0.675))/2:y=(ih-ih)/2:w=iw*0.675:h=ih:color=white@0.2:t=fill, drawbox=x=(iw-iw*0.95)/2:y=(ih-ih*0.95)/2:w=iw*0.95:h=ih*0.95:color=red@1, drawbox=x=(iw-iw*0.965)/2:y=(ih-ih*0.965)/2:w=iw*0.965:h=ih*0.965:color=green@1" %1

Since it's a 3rd-party creation, it would be better to be published into the official EBU git.

Last but not least, check out our HyMPS project where we collect many - maybe interesting for you too - resources.