VIDEO WALL
==========

.. image:: _images/09_CP_videowall.png


Make sure that you have placed a 1920x1080 video named: 

``piwall.mp4``   in   ``/media/internal/video``



SYPHON
**********

Here you can select the syphon slave screen

4 SCREEN
***********

Select the slave screen for a 4 screen setup

3 SCREEN
*********

Select the slave screen for a 3 screen setup

see video tutorial:


SENDER
*******

Select this to stream a master video to PiWall slaves

Make sure that you started slaves before the master!




You can also use any **Linux** computer to be master
enable broadcast:

``sudo route add -net 224.0.0.0 netmask 240.0.0.0 eth0``

and then stream as master:

``avconv -re -i /your/movie.mp4 -vcodec copy -f avi -an udp://239.0.1.23:1234``


make your mac computer as server to serve the video files for Pi-Wall:

to make your Mac **OSX** the PiWall Master, first install ``wget``: 
::

    http://rudix.org/packages/wget.html

    http://ftp.gnu.org/gnu/wget/wget-1.15.tar.gz


then:
::

    wget http://libav.org/releases/libav-10.1.tar.gz
    tar -xvzf libav-10.1.tar.gz
    cd libav-10.1
    sudo port install yasm zlib bzip2 faac lame speex libogg libvorbis libtheora libvpx x264 XviD openjpeg15 opencore-amr freetype

Build libav:
::

    ./configure \
    --extra-cflags=-I/opt/local/include --extra-ldflags=-L/opt/local/lib \
    --enable-gpl --enable-libx264 --enable-libxvid \
    --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb \
    --enable-nonfree --enable-libfaac \
    --enable-libmp3lame --enable-libspeex --enable-libvorbis --enable-libtheora --enable-libvpx \
    --enable-libopenjpeg --enable-libfreetype --enable-doc --enable-gnutls --enable-shared
    make && sudo make install

Finally run as master:

``avconv -re -i /Users/path/to/video/testfile10.mp4 -f avi -an udp://239.0.1.23:1234``