Crashes on Hero 11 files unless -s is used

[qlyoung]

Without -s:

qlyoung@aquila ~/P/g/bad> untrunc ../qlgp-20240831135814-GX010021.MP4 ./qlgp-20240901170515-GX010039.MP4
Info: version 'v367-13cafed' using ffmpeg 'n7.0.2' Lavc61.3.100
Info: reading ../qlgp-20240831135814-GX010021.MP4
Info: parsing healthy moov atom ...
Info: special track found (tmcd, 'GoPro TCD')
Info: special track found (meta, 'GoPro MET')

Info: reading mdat from truncated file ...
[aac @ 0x5db4cda6a800] channel element 2.3 is not allocated
Error: unable to find correct codec -> premature end (~0%)
       try '-s' to skip unknown sequences

Warning: guessed frame durations of 'gpmd' will probably be wrong!
Info: Found 0 packets ( gpmd: 0 mp4a: 0 hvc1: 0 hvc1-keyframes: 0 tmcd: 0 )
/usr/include/c++/14.2.1/bits/stl_vector.h:1130: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = Track::Chunk; _Alloc = std::allocator<Track::Chunk>; reference = Track::Chunk&; size_type = long unsigned int]: Assertion '__n < this->size()' failed.
fish: Job 1, 'untrunc ../qlgp-20240831135814-…' terminated by signal SIGABRT (Abort)

With -s the file is successfully recovered.

[anthwlock]

Hey - please send me the files (healthy+broken) and I will take a look.
You can upload them on wetransfer. If you think they are too big, you can use .
In case you want to keep the link private, you can send me an email - see my Profile page.
Thank you!

[qlyoung]

You can download the zip containing both files and the untrunc version string from my personal file server here. The zip size is about 1gb.

https://files.qlyoung.net/web/client/pubshares/6a6kNbWS8FT8mKhf9QzKZR/download

Let me know if you encounter problems or have questions.