M8S S812 Hardware Acceleration

Hi All,
I need help please.

I have an Amlogic M8S N200C box with Firmware 4.4 / Rooted / ADB / ..
I have some tools for development if necessary.

I would like to view video stream H.264 type.

The problem is i have only Sound and no Video with Kodi and other video player like MX Player.
I tried upgrading to 5.1 Firmware and all work fine (With all Applications Player) , But i must to stay in 4.4 for some raison.

Today i think there is a problem from Hardware Acceleration Amcodec and libamplayer.so library, But i don't realy know if it's correct and how to patch it.

You can have the logcat in attached file.
In this log i have seen this W/linker problem :

V/Kodi ( 1709): Debug Print: FactoryCodec - Video: amcodec - Opening
V/Kodi ( 1709): Debug Print: SECTION:LoadDLL(libamplayer.so)
V/Kodi ( 1709): Debug Print: Loading: /system/lib/libamplayer.so
W/linker ( 1709): libamplayer.so has text relocations. This is wasting memory and is a security risk. Please fix.

Thx You a lot for your help :')

Kévin.