I think maybe the Qt version, next version 2.0 OpenCVR will has buildin Qt library,...
1.Install qt-opensource-linux-x64-5.4.0.run http://download.qt-project.org/official_releases/qt/5.4/5.4.0/qt-opensource-linux-x64-5.4.0.run...
OpenCVR Linux only support x64 version. so you are right. Your Qt version ?
The OS is x64 version os x86 version?
you need change the export LD_LIBRARY_PATH=/home/user/work/ve/linux/lib/:$LD_LIBRARY_PATH...
For ONVIF SDK i think you can try https://github.com/xsmart/onvifcpplib It is VS2010...
i think you can try use https://github.com/xsmart/onvifcpplib, it will support replay...