AVCHD Camcorder SD cards

[Christopher Hoskin]

Dear Stefan,

Thanks for your reply. I think I didn't explain my question very well.

If x-content/audio-dvd, x-content/video-bluray, x-content/video-hddvd etc.
are valid MIME types, detected by the presence of certain files or
directory structures, should there also be a MIME type for AVCHD, indicated
by the presence of a path PRIVATE/AVCHD/BDMV/STREAM?

But perhaps there is a good reason why this is not the case?

Thanks.

Christopher

On 1 April 2016 at 23:59, Stefan Blachmann <sblachmann at gmail.com> wrote:

> Hi Christopher,
>
> the desktop managers or whatever are free to choose from the
> applications that offer a particular mimetype. There is no
> "standardized" OpenWith mechanism.
> Thus it's quite random what app(s) from the available ones get opened.
>
> This is a shortcoming of the standard. I don't see a way to escape it
> except of generally offering an OpenWith dialog.
>
> Hope this helps.
> Stefan
>
> On 4/1/16, Christopher Hoskin <christopher.hoskin at gmail.com> wrote:
> > 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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