Decoder test prints wacky timecode values for sample mp4 videos

[kaciula]

I'm using the code from tests/ltcdecode.c with some videos and I get unexpected timecode values printed.

Here is one video example
https://drive.google.com/file/d/17qBGbrlHKkakNI6-sFT-Mq72pEHtT2F5/view?usp=sharing

And here is what the test code prints:

2051-110-29 +0000

17:56:26.22 | 13850775 13851054 R

2005-144-32 +0000

04:15:75:29 | 38984749 38984998

2003-110-10 +1130

30:24:32:29 | 47406305 47406595 R
...

Am I missing something? I am a complete novice at this. Should I maybe pass a file with the video channel removed and only the 2 audio channels? I would appreciate some advice.