Claude wrote me a tool to encode data in videos.
Here is a copy of Rick Astley's "Never Gonna Give You Up".
Encoded in the (fairly obvious) big on-screen pixels is a copy of the complete works of William Shakespeare.
They can be decoded with this tool.
curl https://gist.githubusercontent.com/za3k/d2d993685a23be04bc3ee5b28281e6d4/raw/0a27700266ff726604d802a9263bda552c57b67a/gistfile1.txt -o decode.py
yt-dlp "https://www.youtube.com/watch?v=EAhEepVNYj8" -o rickroll.mkv
python decode.py rickroll.mkv
Thanks Claude!