AVCHD Camcorder SD cards

[Christopher Hoskin]

Hello,

I am interested in detecting when an SD card used in a camcorder is
connected to a computer. There appears to be a convention (possibly a
standard, but I don't have a reference?) that camcorders recording to the
AVCHD format structure their file layout as shown here:

https://en.wikipedia.org/wiki/File:AVCHD_actual_file_structure.jpg

Currently this results in a Camcorder SD card being identified as
'x-content/image-dcf', which typically leads to the desktop environment
automatically opening a photo editing application, rather than a video
editing application.

As a first draft, the entry might look something like this:

  <mime-type type="x-content/camcorder-avchd">
    <_comment>AVCHD Camcorder SD Card</_comment>
    <treemagic>
      <treematch path="PRIVATE/AVCHD/BDMV/STREAM" type="directory"
non-empty="true"/>
    </treemagic>
  </mime-type>

I am not an expert in this area, so this may need some refinement.

I would be interested to know your thoughts on whether it would be
appropriate to introduce such a MIME type?

Thanks for your time.

Christopher Hoskin
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