I asked because there are two types of links there are HLS (m3u8) and DASH.
Generally Enigma2 use gstreamer for media demuxing. In PLi-4 version 0.10 gstreamer is available. DASH was added to gstreamer in version 1.X.
To be able to play HLS links via gstreamer 0.10 you need to install
gst-plugin-fragmented
I am not sure if feed of OpenPli 4 is still active, but anyway you can use diffrent solution.
You can install ffmpeg libs and allow IPTVPlayer to install exteplayer3.
exteplayer3 is player which use ffmpeg libs for demuxing media.
Please read here how to install valid ffmpeg libs for your image:
http://iptvplayer.pl/ffinstallmipsel.html
For fast solution you can use gstplayer with buffering. In this way hlsdl will be used for data download. You can change active movie player under blue button "Set active movie player".
Regards,
SSS