For those who want to try amitube
here the link:
https://www.morphos-storage.net/?id=1728829

unpacking it is launching it the first time and closing it.
an .ini file will be created in its folder.
which does manually configured like this for Morphos:
[Player]
Path = Sys: Utilities / MultiView
Parameter =% f
MPEGPath = Sys: Utilities / MultiView
MPEGParameter =% f
URLPlayerPath = Work: FFMpeg / ffplay <--- ffplay path
URLParameter =% u <--- here any parameters for ffplay but it's fine by default.
WGetPath = C: wget
WGetParameter =% u -O% f

re-launch it (there is also a way to configure it with the interface but I prefer it this way)
here is the fastest video to get the links to pass to AmiTube and the tests I have done that work:
(for convenience i used qemu to make a quick video)

as you can see from the video, multiple streams are launched at the same time without any block

https://we.tl/t-kW5X2tU1Ue

Currently with ffplay it works but it seems to somehow support one process at a time.
I hope it is useful.

Or someone can help.

Thanks to "beworld" for his availability and his work.

[ Edited by white 31.03.2022 - 23:03 ]