// CentOS Linux release 7.4.1708 (Core)
cat /etc/centos-release
lspci |grep Display

edit /etc/yum.repos.d/CentOS-Base.repo
change all baseurl from mirror.centos.org to /vault.centos.org
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
baseurl=http://vault.centos.org/centos/$releasever/os/$basearch/


download MediaServerStudioEssentials2018R1.tar.gz from https://software.intel.com/intel-media-server-studio
tar xfvz MediaServerStudioEssentials2018R1.tar.gz
cd MediaServerStudioEssentials2018R1
tar xfvz SDK2018Production16.8.tar.gz
cd SDK2018Production16.8
cd CentOS_7.4
tar xfvz install_scripts_centos_16.8-69021.tar.gz
./install_sdk_CentOS.sh
reboot

ls /opt/intel/mediasdk/
cd /opt/intel/mediasdk
mkdir /opt/intel/mediasdk/include/mfx
cp /opt/intel/mediasdk/include/*.h /opt/intel/mediasdk/include/mfx
export PKG_CONFIG_PATH=/root/intel:$PKG_CONFIG_PATH
// install yasm
wget http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz
tar xvzf yasm-1.2.0.tar.gz
cd yasm-1.2.0
./configure && make -j 4 && sudo make install
// create libmfx.pc with the below content
#=======================================================
prefix=/opt/intel/mediasdk
exec_prefix=/opt/intel/mediasdk/
libdir=${prefix}/lib/lin_x64/
includedir=${prefix}/include/
Name: libmfx
Description: mfx
Version: 1.0.0
Cflags: -I${includedir} 
Libs: -L${libdir} -lmfx -ldl -lstdc++ -lrt -lva -lva-drm
Libs.private: -lstdc++ -ldl
#=========================================================
cp libmfx.pc /opt/intel/mediasdk/lib64/pkgconfig
cp libmfx.pc /usr/lib64/pkgconfig
touch libmfx.pc
pkg-config --modversion libmfx

// install ffmpeg
download ffmpeg at http://www.ezhometech.com/developers/ffmpeg-release.3.2-67149cb.tar.gz
tar xf ffmpeg-release.3.2-67149cb.tar.gz
cd ffmpeg-release.3.2-67149cb/
./configure --enable-libmfx --enable-nonfree | tee config.out
grep 'qsv' config.out
grep 'License:' config.out
make -j 8
make install

// copy ffmpeg into ezserver_ai or ezserver_balancer folder
cp ffmpeg /root/ezserver_balancer/
cd /root/ezserver_balancer

// Check _qsv codecs 
./ffmpeg  -hwaccels
./ffmpeg -codecs | grep qsv
// test ffmpeg
./ffmpeg  -hwaccel qsv -i http://trtcanlitv-lh.akamaihd.net/i/TRT1HD_1@181842/master.m3u8 -vcodec h264_qsv -acodec copy -b:v 1200K -f mpegts udp://127.0.0.1:9011?pkt_size=1316 
./ffmpeg  -hwaccel qsv -i http://trtcanlitv-lh.akamaihd.net/i/TRT1HD_1@181842/master.m3u8 -vcodec h264_qsv -vf scale=720:480 -acodec copy -b:v 1200K -f mpegts udp://127.0.0.1:9011?pkt_size=1316