Extract thumbnails using ffmpeg.
Behavior is controlled by three new preferences fields:
- extract_video_thumbnails (bool): if true, thumbnails are calculated.
- extract_video_thumbnail_position (int 0..100): position in video
where thumbnail is fetched.
- ffmpeg_executable (string): path of ffmpeg executable.
If ffmpeg refuses to start, extract_video_thumbnails is set to false
to avoid unnecessary churn.
Video thumbnails are marked by an overlay.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
In 4.5 the signal-to-slot connections between the QSlider
and the QSpinBox were bidirectional. That setup is still
desirable; it must have been broken accidentally during
preferences refactorings.
Signed-off-by: K. Heller <pestophagous@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The signal connections from the old preferences got lost when
we moved to the new ones because Designer is broken and can't
handle signals / connactions from copy/pasted content.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Simple port of the default preferences to the new preferences structure.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>