[mythtv-users] at dusk with the light behind it may very well pass for OnT

[James Linder]

I have a recording (not mythtv) that has missing or broken headers or time stamps).
I was looking for a way to test and Klaus posted a solution, for some other problem, that worked for me.
I thought his post was

ffmpeg -i Channel1.20Jan2022.130000.mp4 -vcodec copy -acodec copy junk.mp4

but not quite. Spelunking the man does not enlighten, and I can’t find that post.
Please any suggestions
James