ODROID XU4
==========
product: http://www.hardkernel.com/main/products/prdt_info.php
distro : Ubuntu 12.04.5
uname  : Linux odroid02 3.10.82 #1 SMP PREEMPT Wed Sep 2 19:59:44 BRT 2015 armv7l armv7l armv7l GNU/Linux
gcc    : 4.6.3-1ubuntu5


Prerequisites
=============

Remove libav:
$ apt-get remove libavcodec53 libavformat53
$ apt-get remove libswscale2 
$ apt-get remove libavutil51
$ apt-get remove libavutil-dev libavcodec-dev libavformat-dev libswscale-dev
  
Get a recent ffmpeg:

    ffmpeg-2.8.6 

Build ffmpeg:

$ ./configure --enable-shared --enable-nonfree --enable-neon --prefix=/usr
$ make -j8
$ sudo make install


Configuring veejay
==================

Before running configure, you should set your CFLAGS. 

The system I used fails to detect the architecture:

~/veejay/veejay-current/veejay-server$ ./cpuinfo.sh 
*** glibc detected *** gcc: double free or corruption (top): 0x00053f10 ***
Aborted
-march=

These are my CFLAGS:

export CFLAGS="-O3 -march=armv7 -mfloat-abi=hard -mfpu=neon -ftree-vectorize -mvectorize-with-neon-quad" 

Next, run configure, make and make install:

$ sh autogen.sh
$ ./configure
$ make -j8
$ sudo make install

Do the same for veejay-client, veejay-utils and the pluginpacks