hyperion-switcher

This script is a fork from hyperion-config-switch. The original uses networking to detect changes. However, I didn't feel like routing another UTP cable to my TV set so I tried to convert the script to use CEC instead. After a bit of digging I found out that the RPi could listen in on CEC events. With this ability I was able to alter the behaviour of Hyperion based on CEC events.

AVR Compatability

Any CEC enabled AVR should be compatible, albeit with different codes for HDMI input sources. For example, my Yamaha seems to prefix every HDMI input number with 2. So I get 21 when I switch to HDMI 1. An Onkyo seems to prefix it with 3 so that HDMI 1 would become 31.

Finding the necessary CEC codes

To start finding your HDMI CEC codes (or if you AVR is compatible) you should start with this command:

cec-client -m -d 8

It should show you any CEC communications currently happening. Start changing HDMI inputs on your AVR and see if there are any codes on the screen that look like 5f:80:XX:00:XX:00 where XX can be any number.

To break this down:

• 5 means it's coming from your AVR
• f means that it's a broadcast (for any device)
• 80 means a change happened in HDMI routing
• The first XX should indicate the previous HDMI input
• The second XX should indicate the current HDMI input <- this is what you want to know

So for example, on my Yamaha, if I change from HDMI 1 to HDMI 2 I should see the code 5f:80:21:00:22:00. Notice the 21 and 22. Yamaha seems to prefix the HDMI input numbers with 2 whereas Onkyo seems to prefix them with 3. I don't currently know about any other AVR models. Every input number that you want to use for the v4l2 grabber should be added to the src_grabber config field, seperated with |.

This process is also described in the config file.

Suggested Installation

Move your existing config file and creating a symbolic link as the file Hyperion will look for. This makes it easier to switch scripts without anything getting overwritten.

OpenELEC

SSH as root to your installation using ssh root@box.ip.add.ress. The default passwords are openelec and rasplex for the respective installs. Now complete the following steps:

cd /storage/.config/
mv hyperion.config.json hyperion.config.default.json
ln -s hyperion.config.default.json hyperion.config.json

killall hyperiond
/storage/hyperion/bin/hyperiond.sh /storage/.config/hyperion.config.json </dev/null >/dev/null 2>&1 &

mkdir /storage/hyperion/switcher/ && cd /storage/hyperion/switcher/
curl -L --output hyperion-switcherd.sh --get https://raw.githubusercontent.com/Schamper/hyperion-switcher/master/hyperion-switcherd.sh
curl -L --output hyperion-switcher.conf --get https://raw.githubusercontent.com/Schamper/hyperion-switcher/master/hyperion-switcher.conf
chmod a+x hyperion-switcherd.sh

Also add this line to /storage/.config/autostart.sh:

/storage/hyperion/switcher/hyperion-switcherd.sh /storage/hyperion/switcher/hyperion-switcher.conf > /dev/null 2>&1 &

Now you need to edit the configuration file, /storage/hyperion/switcher/hyperion-switcher.conf to your needs. All the information regarding the configuration is included in the comments.

At this point it's probably easiest to reboot.

Killing the Switcher

If you need to kill the switch script, run

OpenELEC:

killall -9 hyperion-switcherd.sh