Commit graph

3 commits

Author SHA1 Message Date
Berthold Stoeger
5da09a21bb Cleanup: move error reporting function declarations to errorhelper.h
Move the declarations of the "report_error()" and "set_error_cb()"
functions and the "verbose" variable to errorhelper.h.
Thus, error-reporting translation units don't have to import the
big dive.h header file.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-08-08 16:26:30 -07:00
Berthold Stoeger
92dc441f02 Thumbnailer: improve error message
In the error messages shown when failing to start ffmpeg, instruct
the user to set the correct executable in the preferences.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-07-11 00:24:23 +09:00
Berthold Stoeger
fce42d4858 Dive media: Extract thumbnails from videos with ffmpeg
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>
2018-07-28 15:31:25 -07:00