Properly cache timeline thumbnails and waveforms
@jeff
Submitted by Jeff F.T. Assigned to Jeff F.T. @jeff
Description
If I recall correctly, bug #T1863 is about saving the "general" thumbnails of the clips for the source list.
Here is a new bug report requesting that pitivi saves the thumbnail/waveform "tiles" it generates in the timeline. It could save them in XDG_CACHE_HOME.
When the user loads a project, there would be no need to regenerate all the clips' video thumbnails and waveforms (unless they had never been generated before).
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=633643