Raspberry Pi GPIO-controlled video looper
A video looper for the Raspberry Pi, controlled by GPIO pins. Designed to run an unattended video display, where users can select the active video by switch.
- Play videos using OMXplayer, a hardware- assisted video player for smooth playback.
- Switch between 2 or more videos using hardware switches wired to the Raspberry Pi's GPIO pins.
- Optionally, indicate the active video by LED. This can be used with arcade-style switches which have built-in LEDs, or separate ones.
- Callback-based, rather than polling-based. This means that button presses should always be acted upon.
- Thread locking, to avoid issues when buttons are pressed rapidly and the video hasn't finished loading yet.
I've published a two part tutorial on my blog:
- In part 1, I cover the hardware parts list and build instructions, including a 3D-printed case
- In part 2,
I describe this
rpi-vidloopersoftware tool and how to get it set up and configured
On the hardware side, you'll need a Raspberry PI with several switches, one for each video. Each switch should be connected to a GPIO pin, and to ground. Optionally, you can set up an indicator LED for each video, connected to a GPIO pin.
sudo apt-get update sudo apt-get install python3-pip omxplayer fbi
pip3 install rpi-vidlooper
This creates the
vidlooper command. For usage help, see:
RuntimeError: No access to /dev/mem. Try running as root!
By default, you'll need to run
sudo vidlooper, to gain access to the GPIO
pins and the graphics card (GPU) for
omxplayer. Generally, this is not
To avoid this, the user you want to run the vidlooper as will need to be
gpio group. For example, for the
pi user, you'd need to do this:
sudo usermod -a -G gpio pi
No rights to /dev/vchiq
See the OMXplayer troubleshooting to fix
this issue. It's also possible to avoid by running
sudo vidlooper, but
as above, this is not recommended.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
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