[FFmpeg-user] write output of find_rect to a file?

[Valentin Schweitzer]

> Unfortunately I can't compile ffmpeg myself on my Windows system.

If you are comfortable with compiling FFmpeg in general but lack
the tools on Windows, you could try the media-autobuild suite.
https://github.com/m-ab-s/media-autobuild_suite

If you need to recompile FFmpeg you can keep your ffmpeg_options.txt,
mpv_options.txt and media-autobuild_suite.ini files to reuse your
settings.