https://bugs.kde.org/show_bug.cgi?id=474819
--- Comment #9 from Andreas Schleth <schleth...@web.de> ---
Hi Johannes, now - finally - I did some testing:
a) the categories in thumbnail view seem to be in a static sequence now. Good,
check!
b) the options with what external program to open something are static (good!),
but still different for different file types (for the same media type). I just
checked for video (this is where I always use the "open with external program"
path):
*.mkv: QtAV QML Player - QtAV Player - QMPlay2 - VLC - Enqueue with QMPlay2
*.mp4, *.webm, *.mpg: VLC - QMPlay2 - GPAC - QtAV - Enqueue... - QtAV QML (+
Audacity only for .mpg)
* mov: QMPlay2 - VLC - QtAV QML Player - Enqueue... - QtAVPlayer
Now I see, that the lists have sometimes different entries for different types.
But these lists are not even complete/correct. Examples:
*.mp4 opens in Audacity too (as the .mpg) - if the sound codec is recognized in
Audacity.
*.mov opens and plays in GPAC which is not in the list.
[How do you find the apps that should work and how do you determine if a file
type is suitable for an app?]
To differentiate which program can play a *.mkv or *.mp4 file successfully
cannot be determined by the file extension alone, as these files are just
containers for a host of different codecs (most/all? video files are).
Depending which AV-libraries are installed, some may play others may play not.
[The real use cases for me are: images: open in Gimp, videos: play with VLC -
all the others are (for me!) just a distraction. If I ever need to open a video
in Audacity, the generic "open with ..." would do nicely. Others would have
other preferences.]
So, what to do about this? I can think of:
a) make the list dependent on media type only (and have some programs throw an
error if they cannot understand a certain codec - most do this nicely)
or
b) let the user configure this list in the settings (for each media type)
and/or
c) let the user configure a preferred viewer for this media type = the action
that comes with a double click in thumbnail view (I would choose the internal
viewer for images and VLC for video)
I guess a) should be the easiest path forward as b) and c) would need lots of
additional UI.
However, since most of my videos are *.mp4 I like the current solution already
a lot better than the old state :-)
Cheers, Andreas
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