NMM release 0.7.0
Michael Repplinger
repplix at graphics.cs.uni-sb.de
Sat Oct 9 02:27:41 BST 2004
Hi there,
we are happy to announce our next major release:
*NMM 0.7.0 "Size matters"*
The Network-Integrated Multimedia Middleware (NMM) provides an architecture that allows to create distributed multimedia application easily: local and remote multimedia devices or software components can be controlled transparently and integrated into a common multimedia processing flow graph. NMM runs under Linux, is implemented in C++, and distributed under the LGPL. For more information, see: http://www.networkmultimedia.org
Furthermore, NMM provides several services which are required in a distributed multimedia environment:
* A registry service which discovers and manages available resources,
like hardware or software plugins, efficiently. In addition it
enables distributed applications to access locally resources. See
http://www.networkmultimedia.org/current/Docs/first-steps/index.html and http://www.networkmultimedia.org/current/Docs/server-registry/index.html
for some information and examples.
* For distributed and synchronized play back of audio or video, NMM
provides a distributed synchronization service using the Network
Time Protocol (NTP). An introduction how to set up NTP for NMM can
be found here
http://www.networkmultimedia.org/current/Docs/ntp/index.html.
* The concept of session sharing allows to share parts of an active
multimedia session and provides synchronized and distributed media
playback on various devices within different applications. For more
information, see
http://www.networkmultimedia.org/Publications/2003/session-sharing-mips2003.pdf
*NEW in this release are:*
* Added new GraphBuilder which automatically creates a flow graph from
a given URL. It also allows to create a distributed flow graph and
to play back audio and video on distributed hosts or to access
remote sources. See the hellographbuilder examples at
http://www.networkmultimedia.org/current/Docs/helloworld/index.html
for more information.
* Multimedia-Box:
- Playlist uses the new GraphBuilder for audio and video play back.
- TVState provides a new search engine which uses predefined and
user defined categories to search easily the epg information for
your favorite program via remote control. The corresponding key
assignment can be found here:
http://www.networkmultimedia.org/current/Docs/mmboxcontrol/index.html
- many minor bug fixes and feature enhancements
* clic:
- Unified the syntax of clic and integrated our new GraphBuilder to
playback given URLs. Added some simple keyboard controls while
playback an URL. See
http://www.networkmultimedia.org/current/Docs/clic/index.html for
more information and some examples.
* Updated NMM engine for the amaroK audio player. See
http://www.networkmultimedia.org/Status/amaroK/index.html for more
information.
* improved automatic plugin loading (run './apps/serverregistry -s)
* Changed plugin management and registration. Now each plugin should
be stored into a separate library (update started). Plugin developer
should read our tutorial about "Developing Plug-ins for NMM"
http://www.networkmultimedia.org/current/Docs/plugins/index.html)
for further information
* Replaced most of our examples by graph descriptions.
* Added VideoCropNode to display parts of a video frame. For example
this node can be used to realize a distributed video wall. See
http://www.networkmultimedia.org/NMM/current/Docs/videowall/index.html.
for an example configuration. A demonstration video (14 MB)can be
found at: ftp://www.networkmultimedia.org/NMM/Status/Videowall/NMM_videowall_oct2004.avi
* Updated IceCastNode to latest icecast version
* Introduced a thread pool which improves the network performance for
instream and out of band communication.
* many bugfixes in plug-ins and NMM base
Together, the 0.7.0 release consists of several parts:
(1) The NMM-base system
(2) Over 50 plug-ins (called NMM-Nodes)
that allow to access multimedia devices like
- Video and Sound boards,
- TV-tuner and DVB boards
- CD/DVD drives
- Firewire devices
- VISCA cameras
- ... and many more
or provide different software processing components like
- MPEG video decoder/demultiplexer
- MPEG audio encoder/decoder/demultiplexer
- Ogg/Vorbis encoder/decoder/demultiplexer
- DivX encoder/decoder
- AVI multiplexer/demultiplexer and reader/writer
- Colorspace converters
- Video effects
- Audio filters and visualization
- ... and many more
See
http://www.networkmultimedia.org/NMM/current/Docs/pluginlist/index.html.
for a complete list of supported plugins
(3) The Multimedia-Box application is based on NMM and provides an
integrated software solution for a Multimedia Home-Entertainment
Center running on a commodity Linux-PC. Following features are
available:
- CD-Player with CDDB support, DVD-Player with support for menus and
a Play-list for creation of play lists with all supported media
types.
- CD-Grabber and DVD-Grabber with transcoding capabilities to
different audio and video formats. Furthermore, the DVD
transcoding task can transparently be distributed to remote hosts
that provide more processing power.
- TV (analog or digital) plus time-shifting. Furthermore, for hosts
that do not have direct access to a analog or digital TV source
(e.g. via a PCI board), a remote host can transparently provide
this functionality.
- Video recorder functionality and Electronic Program Guide using
either DVB or XMLTV as data source and simple web interface
- Multi-tasking: watch TV while transcoding a DVD.
- All controllable with a remote-control (or via keyboard when
running as standard desktop application)
- Customizable on-screen display (skinning) with six different
skins: blue, blues, las_vegas, icon, ct-skin1, ct-skin2.
- Extensible and configurable application framework (XML)
- For more information, see:
http://www.networkmultimedia.org/Status/MMBox/index.html
(4) clic: CommandLine Interaction and Configuration. An application for
setting up distributed multimedia flow graphs from a high-level
specification - a so called graph description stored in a .gd-file.
Many .gd-files are also included that allow - for example -
distributed grabbing and transcoding DVDs.
(5) some small example applications demonstrating the functionality of
the plug-ins
(6) A registry service, that administrates all resources available at a
host. This service can be requested from local or remote
applications.
(7) A Qt-application called qregwizard that shows the current status of
the registry
(8) qcamcontrol: a Qt-application that allows to control local and
remote Firewire cameras.
(9) All documentation that can also be found online.
This release provides support for gcc 3.3 and 3.4. We also provide
pre-compiled version of external libraries for both gcc 2.95 and gcc
3.x, please see README in the tar.gz archive.
Download: http://www.networkmultimedia.org/Download/index.html
If you would like to get involved in the development of NMM, or you
want to develop an application on top of NMM, or you simply want to
ask a question or report a bug, you are welcome to subscribe to our
developer mailing list [nmm-dev] at:
http://graphics.cs.uni-sb.de/cgi-bin/mailman/listinfo/nmm-dev (english
only, please)
Furthermore, we provide an irc-channel on freenode. See
http://www.networkmultimedia.org/Contact/irc/index.html for additional information.
Best regards
Michael
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