Bonded connection for video streaming uplink

we need a set of vpn server / client programmed for embedded linux (or windows) to bond multiple 4g lte modems or wifi connectios and stitch them back together on server side to stream video feeds. the connection must be stable and have the maximum available bandwidth with no drop in some connection drops. simillar to service called SPEEDIFY (but it doesn't work well) this can be also achieved by splitting video packets and send them through different links and stitch the video packets back on the server side.