centos 7: sudo yum install nasm xorg-x11-server-devel zlib-devel gcc gcc-c++ perl-version libxcb libxcb-devel xcb-util xcb-util-devel xcb-util-*-devel libX11-devel libXrender-devel libXi-devel redhat-lsb-core libxslt-devel cmake libuuid-devel

ubuntu: sudo apt-get install  "^libxcb.*" build-essential shtool libtool automake autoconf libbsd-dev libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev cmake libx11-dev yasm libxext-dev libgl1-mesa-dev  zlib1g-dev freeglut3-dev uuid-dev

Change VE_PATH in the rules.mk
$source ./rules.mk
$make

Install xcode
Change VE_PATH in the rules.mk
$source ./rules-macos.mk
$make 

1. Install VS2013
2. Install Qt 5.x.x in the http://download.qt-project.org/official_releases/qt/
3. http://download.qt-project.org/official_releases/vsaddin/
4. Add Qt version to VS2013
5. Change scripts\dllprepare* QT_WIN32 and QT_WIN64
6. run the dllprepare.bat
7. veuilib\prj_win32\veuilib.sln build
8. vecvr\prj_win32\vecvr.sln build
9. client\prj_win32\veclient.sln build

Change VE_PATH & VE_CROSS_COMPILER_PATH in the rules-pi3.mk
$source ./rules-pi3.mk
$make 

ONVIF profile S support.
Unlimited timeline playback.
Anti file system fragment recording system.
Multi Display screen support.
Alarm Support
PTZ Support
Emap
HW accel Decoding
MJPEG/MPEG4/H264/H265 support
Linux(ARM X64 X86) Windows MacOS(Coming sonn)support
RTSP over SSL(HTTPS)
RTSP Server/RTMP Server/HLS Server