Fork info

This is the Wizard of Gnomes fork of AACS (https://github.com/tomasz-grobelny/AACS) designed specifically to allow Android Auto support in a headunit to be used to implement a carputer. As such, it removes the 'client' and 'getevents' code, and modifies the library to stream from the framebuffer instead of a video source.

Features:

• Raspberry Pi 4 support including hardware video encoding
• Touch HID events generated in response to head unit touches

Planned/todo:

• Audio support for playback and recording from the headunit
• GPS data (and other sensors?) from the headunit

Issues:

• Certs need updated (see tomasz-grobelny#15)
• The HID descriptor seems to upset libevdev and requires a workaroud (see below). This is presumably fixable.

To use:

• Configure the Pi to manually enable a framebuffer of the desired size (as HDMI detection will fail, and framebuffers are disabled by default)
• Build on Raspberry Pi
• sudo modprobe libcomposite
• sudo ./AAServer from the relevant directory After AAServer is launched a new HID device will appear in /dev/input. It is currently necessary to 'fix' the resolution:
• libevdev-tweak-device --resolution 320,240 /dev/input/event3 After this X Windows may need restarted (if that's the environment you wish to stream).

Instead of X11 you can also try any app that can write directly into the framebuffer, e.g. mplayer