Hello,
i recently built a vdr-1.7.6 + reelbox pluging, following the vdr-wiki for VDR DVB-S2 on OpenSuse.
Everything was build properly, but unfortunately the eHD freezes after a few Minutes (not only when replaying recordings, but also with live TV). I know that there are some problems concerning the new TS format of VDR.
I fightet any times ago with the same problem. eHD was not usable.
In my case, i found a solution in vdrportal.de for the dvb card budget-core driver.
I am load now the budget-core driver with a bigger bufsize, after this eHD work perfektly, no freez video anymore.
On gentoo im added to /etc/modrobe.d/budget-core{.conf}
options budget_core bufsize=1410
update-modules --force, reload module budged-core or reboot
good luck