Mimetype - MPEG-2 TS and Matroska video files flagged as audio/vnd.dts.hd

SUMMARY:

A MPEG-2 TS or Matroska file, with embedded DTS HD audio, is flagged as audio/vnd.dts.hd

STEPS TO REPRODUCE:

Download a .m2ts video that has embedded DTS HD audio, check with

    xdg-mime query filetype testfile.m2ts 

OBSERVED RESULTS

The mimetype is shown as "audio/vnd.dts.hd". 

EXPECTED RESULTS

The mimetype is shown as "video/mp2t"

SOFTWARE/OS VERSIONS

Neon Testing

Plasma : 5.22.4
Frameworks : 5.85.0
Qt : 5.15.5 

ADDITIONAL INFORMATION

The same affects Matroska files with embedded DTS HD audio

    xdg-mime query filetype testfile.mkv

shows a mimetype of "audio/vnd.dts.hd".

Seems to be an issue with the "magic" for the DTS HD entry which has
a priority "60" in freedesktop.org.xml, higher than that for MPEG-2 TS
files (that have a priority of "50") or for Matroska files (that have
the default priority of "50"), potentially also "application/x-matroska"
and "video/webm"

The container files, I suspect, need a higher priority than the DTS HD
audio and the "video/x-matroska" entry should include sufficient "magic"
so that a priority can be specified.

If changing the priority of "video/x-matroska", the
"application/x-matroska" and "video/webm" priorities may also need
changing. I don't have test cases for the full range of formats.

Logged in KDE as:
    https://bugs.kde.org/show_bug.cgi?id=440632
originally:
    https://bugs.kde.org/show_bug.cgi?id=420939