When generating thumbnails, test for video files. If it is, use
a dummy-thumbnail. Write only the type (video), but no image to
the thumbnail cache, for forward-compatibility.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Thus, metadata has to be only read once and the picture_load_exif_data()
function can be removed.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>