Hackathon Gunther Daemon

HGD is a music system suitable for hackathons, internet cafes, LAN parties etc. Music is played on one set of speakers and clients queue up media from their own machines over the network. Because we use MPlayer to play media, you can send anything MPlayer understands, including video.

HGD was inspired by the LPD hack -- a music system used at OpenBSD hackathons. We plan to implement similar functionality and extend it.

Current features

• Network listener daemon.
• Player daemon (uses mplayer).
• Command line client with the ability queue and vote-off tracks.
• Works on Linux and OpenBSD.

Prerequisites

To build, you will need:

• Linux or OpenBSD (possibly others, not tested)
• Make (either GNU or BSD)
• GCC or Clang
• SQLite3 libs and headers (if building servers).
• OpenSSL libs and headers.
• LibBSD (linux only) libs and headers.
• Mplayer (for the server)

And optionally:

• LibConfig, if you want config file support.
• TagLib, if you want media tag support in the server.
• Python-{2.6,2.7}, if you want the scripting backend.

If you checked out from git, you will also need:

• autoconf
• automake (even though we don't use it)
• libtool (even though we don't use it)

On ubuntu (and debian?) you can do something like: sudo apt-get install libbsd0 libbsd-dev mplayer python2.7 python2.7-dev \ libtagc0 libtagc0-dev libconfig8 libconfig8-dev libsqlite3-0 \ libsqlite3-dev libssl-dev libssl0.9.8 build-essential

and for git checkouts, additionally: sudo apt-get install libtool automake

Building

1) If you checked out from git, first run: ./autogen.sh

2) Configure the build: ./configure

If you don't want to pollute /usr/local, pass a --prefix=/some/path
argument.

Examine the output and install anything missing. Don't forget linux
packages headers and libraries separately.

3) Build and install:

* Run 'make'
* Run 'make install'

NOTES:

HGD will happily run out of it's build directory, so the 'make install' step is optional.

On MacOS X, you may have to jump through hoops. Others have succeeded using macports for libconfig and sqlite3 dependencies. You may need to set the include path and library path to /opt/include and /opt/lib respectively (good luck).

Quickstart for the Lazy

This is how to configure a HGD server an client:

If you upgraded from a previous version of HGD, i would recommend removing your state directory and starting afresh, as the database structure does change from time to time.

If you need a custom state path (ie. not /var/hgd), you can either pass -d to all server components (make sure they are the same of course), or make a hgd.rc config file (see the FILES sections in manual pages).

First create the sqlite3 database:

% hgd-admin db-init

Now you should make user accounts:

% hgd-admin user-add

You will be asked to type a password twice. Do this for all users.

Then you can run the hgd daemons:

% /absolute/path/to/hgd-netd % /absolute/path/to/hgd-playd

Check the daemons came up properly:

% hgd-admin status

If either daemons did not come up, then examine the system's 'daemon' log (usually /avr/log/daemon) and look for errors. For debugging, you can run the daemons in the foreground -B and turn up debugging with -x