[ronnieb]

@ronnieb: zkus třeba na počítači Kodi 21 nebo 20 s novějším InputStream Adaptive. Alespoň v mém doplňku přetáčení s DASH funguje. U novějších streamu byl problémy se některými staršími verzemi ISA.

Wow that did it , thank you so much!! Postupoval jsem takto, treba to nekomu pomuze tez:
 

nVidia Shield pro
1) Close Kodi if it is running (Alt + Tab -> kill )
2) Download Kodi v. 20.2 arm64-v8a e.g. from apkmirror
3) Run the apk -> your Kodi gets updated, preserving all settings (no need to perform a fresh install)
4) Reboot your Shield 
5) Open Kodi - 1st time setup will go through ...
6) Add-ons -> Install from repository -> All repositories -> Videoplayer InputStream
a) Install 'InputStream Adaptive'  
b) ... I also installed 'Inputstream FFmpeg Direct' // told myself 'why not', unsure it has any affect
7) Reboot Shield
8) Open waladir's iPrima addon
9) Addon settings -> Typ streamu -> DASH 
10) Click 'Nova sesion'
11) Open the addon, pick e.g. random 'Prostreno' episode
12) Fast forward 30 min
EXPECTED RESULT : The stream skips 30 min and you carry on watching
ACTUAL RESULT : ditto (= what did not work on my Kodi 19.5 at all)

V addonu od Mr. waladir funguje pretaceni, pauza & vsechno jako driv, u addonu od Mr. R. Smolky bohuzel ne (predp. ze proto, ze tam nelze prepnout z HLS na DASH?). Za praci na obou addonech bych chtel ale obema autorum mega podekovat, vazime si toho & delate lidem radost!!