ffmpeg streaming example does not work

[JHa13y]

This is on downloaded 'Day Flight.mpg' file specified.

I'm executing the example given on the main page with ffmpeg command as follows:

'ffmpeg -i Day\ Flight.mpg -map -d -codec copy -f data - | python3 ./klvdata_test.py' and it's producing an AttributeError: 'UnknownElement' object has no attribute MetadataList.

I can't quite tell, has an underlying library in python changed changed? Or has something changed about ffmpeg that is corrupting the KLV data? Any pointers where to look would be appreciated.

ffmpeg version:
ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)

python version 3.12.3

[JHa13y]

Update: This was a bug in FFMPEG 6.1.1, updating to 7.X resolved it on other sample data, but the provided video still had issues.