thielemans

File: routing.up  (chmod 0775)

#!/bin/sh

iptables -t mangle -A OUTPUT -m owner --uid-owner vpnusername -j MARK --set-mark 3   #Change vpnusername
iptables -t nat -A POSTROUTING -o ${dev} -j SNAT --to-source ${ifconfig_local}

ip rule add fwmark 3 lookup 200
ip route add 192.168.1.0/24 dev eth0 table 200    # Change the IP to your LAN IP
ip route add default via ${route_vpn_gateway} dev ${dev} table 200

thielemans

#Downconvert 7.1 DTS-HD to DTS 5.1:
ffmpeg -i in.mkv -strict -2 -map 0:a:0 -c dts -af "channelmap=channel_layout=5.1" dts.mkv

#Downconvert 7.1 DTS-HD to AC3 5.1:
ffmpeg -i in.mkv -map 0:a:0 -c ac3 -ac 6 -ab 640k ac3.mkv

#Add downconverted audio streams via ffmpeg:
ffmpeg -i in.mkv -i dts.mkv -i ac3.mkv -map 0:v -c:v copy -map 0:a -c:a copy -map 1:a -c:a copy -map 2:a -c:a copy -map 0:s -c:s copy out.mkv
#Or use MKVToolNix

thielemans

1.	Installation
  a.	Install & update Linux
  b.	Optional: Install virtualbox guest additions
  c.	If using a minimal install, install common developer tools like java, git, etc…
    i.	sudo apt install openjdk-8-jdk git python build-essential
    ii.	Optional: Install Eclipse IDE for C/C++ Developers

2.	Download Contiki from git
  a.	git clone https://github.com/contiki-os/contiki.git
  b.	git submodule update --init --recursive