What is Rygel?

Rygel is a collection of DLNA[1] (UPnP[2] AV) devices, implemented through a
plug-in mechanism.

== Important facts and features ==
  * Specifically designed for GNOME (Mobile) and is therefore planned to be one
    of the key new features of Maemo[3] platform in the Harmattan[4] release.
  * Based on GUPnP[5].
  * Written (mostly) in Vala language[6]
  * APIs to ease the implementation of AV devices (currently only MediaServer[7]
    version 2.0 specification[8].
  * Export of on-disk media:
    * tracker[9] plugin.
    * media-export plugin: Recursively exports folders and files specified in
                           the user configuration. This plugin supports all
                           types of URIs that gio/gvfs and gstreamer can handle.
  * Export of online media from 2nd German TV station[11].
  * Export of media hierarchies provided by external applications through
    implementation of D-Bus MediaServer spec[12]. Applications that utilize
    this feature are:
    * PulseAudio[13]: Provides streams for input/output devices on the system.
    * DVB Daemon[10]: Provides live TV (DVB) channel streams.
  * Export of GStreamer pipelines as media items on the network, specified
    through gst-launch syntax in the user configuration.
  * Audio and Video Transcoding: source format could be anything GStreamer's
    decodebin2 can handle but output formats are currently limited to: mp3, PCM
    and MPEG TS. Fortunately the transcoding framework is flexible enough to
    easily add more transcoding targets.

[1] http://www.dlna.org
[2] http://www.upnp.org
[3] http://maemo.org/intro/platform
[4] http://wiki.maemo.org/Task:Maemo_roadmap/Harmattan|Harmattan
[5] http://www.gupnp.org
[6] http://www.vala-project.org
[7] http://www.wikipedia.org/wiki/Media_server
[8] http://www.upnp.org/specs/av/UPnP-av-MediaServer-v2-Device-20060531.pdf
[9] http://www.gnome.org/projects/tracker
[10] http://live.gnome.org/DVBDaemon
[11] http://www.zdf.de
[12] http://live.gnome.org/Rygel/MediaServerSpec
[13] http://www.pulseaudio.org