- Update to version 0.4.2
+ gui.c
- since GTK+ version 3.22.30 the window will not be proper
drawn after start, but when changing the size of the window
everything works fine. Testing the cairo surface pointer in
the redraw functions and create a surface if the pointer is
NULL fix this bug!
- removed depricated functions 'gtk_color_button_get_rgb' and
'gtk_scrolled_window_add_with_viewport', since the required
GTK+ version is min 3.10. (GTK-3 only)
+ ffmpeg.c
- works with FFmpeg version 4.0.2.