How to use multimedia content on Libre Office since Perian no longer exist
One year ago I moved from an old Mountain Lion iMac to a new Mac with Sierra/High Sierra. I used to make for my job slide shows presentations with Libre Office Impress, containing mp3 audios and avi videos. On the new mac my old slide shows do not work anymore, since the multi media content (which is in a folder associated with the file) is not read. Apparently the reason is the lack of Perian codecs in new mac os. Of course I use VLC to play back any sort of videos, but it seems that Libre Office, not having an internal media player, rely on Quick Time, but Quick Time do not read anymore my avi files.
1) Is this assomption correct ?
2) Is there any way to make Libre Office work with other codecs sources ?
3) Am I the only one having this problem ? (no solutions found in mac forums...)
p.s. Yes, I could use Microsoft PPT for new presentations, but I cannot export in that format the old ones...
If anyone can help, thank you in advance !!
F.