Liquidsoap 2.1.0


Installing liquidsoap can be a difficult task. The software relies on a up-to date OCaml compiler, as well as a bunch of OCaml modules and, for most of them, corresponding C library dependencies.

Our recommended way of installing liquidsoap is via opam. opam can take care of install the correct OCaml compiler, optional and required dependencies as well as system-specific package dependencies.

The opam method is described in details in the documentation. We recommend that any interested user head over to this link to install the software via opam.

The following of this document describes how to install the software via its configure script and is intended either for system administrators or package maintainers.


Below is a list of dependencies, mostly OCaml libraries. Optional libraries provide extra features. They need to be detected by the configure script.

Most of the libraries are developed by the Savonet project and, in addition to being available through traditional distribution channels, are bundled in the liquidsoap-<version>-full.tar.bz2 tarballs for easier builds.

Mandatory dependencies:

Dependency Version
OCaml compiler >= 4.12.0
ocaml-dtools >= 0.4.4
ocaml-duppy >= 0.9.1
ocaml-mm >= 0.8.1
sedlex >= 2.2
Dependency Version Functionality
camomile >= 1.0.0 Charset recoding in metadata
ocurl >= 0.9.2 File download
ocaml-ffmpeg >= 1.1.4 Comprehensive audio and video support

Optional dependencies:

Dependency Version Functionality
camlimages Image decoding
gd4o Video.add_text() on servers without X
memtrace Memory usage debugging
memtrace Memory usage debugging
ocaml-alsa >= 0.3.0 ALSA I/O
ocaml-ao >= 0.2.0 Output via libao
ocaml-bjack >= 0.1.3 Jack support
ocaml-cry >= 0.6.5 Sending to Shoutcast & Icecast
ocaml-dssi >= 0.1.3 DSSI sound synthesis
ocaml-faad >= 0.5.0 AAC stream decoding
ocaml-fdkaac >= 0.3.1 AAC(+) encoding
ocaml-flac >= 0.3.0 Flac and Ogg/Flac codec
ocaml-frei0r >= 0.1.0 Frei0r plugins
ocaml-gstreamer >= 0.3.1 GStreamer input, output and encoding/decoding
ocaml-inotify >= 1.0 Reloading playlists when changed
ocaml-ladspa >= 0.2.0 LADSPA plugins
ocaml-lame >= 0.3.5 MP3 encoding
ocaml-lastfm >= 0.3.0 Lastfm scrobbling
ocaml-lilv Lilv plugins
ocaml-lo >= 0.2.0 OSC (Open Sound Control) support
ocaml-mad >= 0.5.0 MP3 decoding
ocaml-magic >= 0.6 File type detection
ocaml-mem_usage Memory usage information
ocaml-ogg >= 0.7.0 Ogg codecs
ocaml-opus >= 0.2.0 Ogg/Opus codec
ocaml-portaudio >= 0.2.0 Portaudio I/O
ocaml-pulseaudio >= 0.1.4 PulseAudio I/O
ocaml-shine >= 0.2.0 Fixed-point MP3 encoding
ocaml-samplerate >= 0.1.5 Libsamplerate audio conversion
ocaml-soundtouch >= 0.1.9 Libsoundtouch’s audio effects
ocaml-speex >= 0.4.0 Ogg/Speex codec
ocaml-srt >= 0.2.1 SRT I/O
ocaml-ssl >= 0.5.2 SSL/https support
ocaml-taglib >= 0.3.7 MP3ID3 metadata access
ocaml-theora >= 0.4.0 Ogg/Theora codec
ocaml-vorbis >= 0.8.0 Ogg/Vorbis codec
ocaml-xmlplaylist >= 0.1.3 XML-based playlist formats
osx-secure-transport SSL/https support via OSX’s SecureTransport
posix-time2 High-resolution time/latency
tsdl >= 0.2.0 Display videos
tsdl-image >= 0.2.0 Load images
tsdl-tff Render fonts

Runtime optional dependencies:

Dependency Functionality
awscli s3:// and polly:// protocol support
ffmpeg external I/O, replay_gain level computation, ..
youtube-dl youtube video and playlist support

Installing via configure

The build processus starts with by invoking the configure script:

% ./configure

If you want a complete installation of liquidsoap, enabling a production use of liquidsoap as a daemon, you should pass --with-user=<login> and --with-group=<group> options to indicate which user/group you have created for liquidsoap.

Then, build the software:

% make

You can also generate the documentation for liquidsoap:

% make doc

It will generate the HTML documentation, including a version of the scripting API reference corresponding to your configuration.

Then, you may proceed to the installation. You may need to be root for that.

% make install

This will not install files such as /var/log/liquidsoap unless you have provided a user/group under which liquidsoap should be ran. This behavior can be overridden by passing INSTALL_DAEMON="yes" (useful for preparing binary packages).

If you need to run liquidsoap as a daemon, you can then have a look at liquidsoap-daemon.