Comment # 8 on bug 1210750 from Roland Kummler

(In reply to Christophe Marin from comment #7)
> (In reply to Roland Kummler from comment #6)
> 
> > digikam 8.1.0 KDE:Extra repo, no sound
> > 
> > ...
> > digikam.qtav.warn: invalid index 0 ( valid is 0 ~ 0 ) for stream type 2
> > digikam.qtav.warn: invalid video frame from decoder. undecoded data size: 0
> 
> Can you check if one of these solutions helps?
> 
> https://bugs.kde.org/show_bug.cgi?id=468480#c23

Neither removing the video codecs, restarting, adding and restarting again nor
rebuilding the thumbnails solved the sound issue.
I never had any video crashes contrary to the bug description above.