kraj / flowrpi

flowrpi

An OpenEmbedded distribution for RaspberryPi optimised for visual communication/digital signage. The image includes WPEWebkit and an OMX based driver for gstreamer.

Setting up workspace

you need to have repo installed and use it as:

mkdir ~/bin
curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo

Please note that repo requires python2, some distributions which default to python3 might need below fix

sed -i "s%/usr/bin/env python$%/usr/bin/env python2%" ~/bin/repo

you might have to re-run this command everytime repo tool is updated in ~/bin/repo

Download source:

PATH=${PATH}:~/bin
mkdir flowrpi
cd flowrpi
repo init -u https://github.com/kraj/flowrpi
repo sync
repo start work --all

At the end of the commands you have every metadata you need to start work with.

To start a simple image build:

source ./setup.sh
bitbake wpe-eglfs-image

The source code is checked out at <TOPDIR>/sources folder

Create Bootable SD-Card

sudo dd if=tmp/deploy/images/raspberrypi3/wpe-eglfs-image-raspberrypi3.rpi-sdimg of=/dev/sdX

where X is the letter a,b,c which your box would have mounted the uSD card on you can check that with dmesg | tail -10 when you insert the card into your computer.

Once booted login as ‘root’ with no password

Run

wpe https://youtube.com/tv

This should result in WPE launched on screen and you can try to play a video manually

Or you can launch a video like

wpe https://www.youtube.com/tv#/watch/video/control?v=-YGDyPAwQz0&resume

which will play one video automatically

Second test is to run big bunny video launch it like

gst-launch-1.0 souphttpsrc location="http://download.blender.org/peach/bigbuckbunny_movies/big_buck_bunny_720p_h264.mov" ! typefind ! qtdemux name=demux demux. ! queue ! h264parse ! omxh264dec ! glimagesink demux. ! queue ! faad ! autoaudiosink

With systemd if dhcp does not work then you have to set /etc/resolv.conf symlink correctly.

ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf

Using Online Package Management

This needs RPI and build machine to be on same network.

Start a webserver in deploy/ipk directory of build system

cd tmp/deploy/ipk && python3 -m http.server 8000

Now target can be updated from build machine generated packages

opkg update
opkg upgrade