Software and configuration for the Ardent Mobile Cloud Platform's Raspberry Pi
- Use the latest version of Raspbian
- Use rpi-update to install the latest firmware
- Install extras with system/install.sh
Building the Server
The server is written in Python, but it includes C-language extension modules. For convenience, you can build it in-place:
$ ./setup.py build --build-platlib=. running build running build_py running build_ext
$ ./server.py 2013-08-07 14:40:56,536 - amcpserver - DEBUG - action="init_server", port="8000" 2013-08-07 14:40:56,540 - amcpserver - DEBUG - action="init_soundout", system="Darwin" press enter to quit...
The shairport project is an open source AirPlay-compatible server. It runs really nicely on the Raspberry Pi. The original version was a mishmash of Perl and command line tools, with a C-language daemon to handle audio decompression.
There's a new 1.0 release of shairport under development which is much friendlier and more efficient. It's been rewritten fully in C, and it has a much nicer architecture. This code still hasn't been merged back to the main branch, but I've been testing it and it seems nice and solid. The repository is on Github:
Important: By default, this will compile without any optimization flags. Compile-time optimization is really important for the audio decompression code here! In my testing, CPU usage went from 40% down to about 15% by compiling with optimization:
./configure CFLAGS="-O3 -ffast-math" make
Raspberry Pi Steps
install SD card boot up and change the default password and expand the filesystem, reboot (raspi-config is the tool) sudo rpi-update sudo apt-get update sudo apt-get install libssl-dev sudo apt-get install mplayer sudo apt-get install screen vim git clone https://github.com/abrasive/shairport.git -b 1.0-dev (clone the shairport branch that's better) cd ~/shairport ./configure CFLAGS="-O3 -ffast-math" make make install cd ~ git clone https://github.com/ArdentHeavyIndustries/amcp-rpi.git python setup.py build --build-platlib=. cd ~/amcp-rpi/system ./install.sh