Hi everybody,
below is the latest installment of news from the Xiph.org community. The
HTML version is at http://www.vorbis.com/ot/20030820.html. Enjoy!
-Carsten
<p>Ogg Traffic for Wednesday, August 20, 2003
Author: Carsten "Purple" Haese
Contact: [1]carsten@xiph.org
Date: August 20, 2003
Table of Contents
1 Status Updates
1.1 Monty
1.2 Jean-Marc Valin
1.3 Stan Seibert
1.4 Ed Zaleski
1.5 Brendan Cully
1.6 Karl Heyes
1.7 Mauricio Piacentini
1.8 Dan Miller
1.9 Ralph Giles
1.10 Jack Moffitt
2 Recent Developments
2.1 Neuros Firmware News
2.2 Speex ACM Codec and Netmeeting support
2.3 Oggsplit
2.4 Ogg Writ
[2]Previous Issues of Ogg Traffic
1 Status Updates
1.1 Monty
Monty was busy finishing up the optimizations of the Neuros firmware,
which he delivered to Digital Innovations for integration into their
official firmware. More details on the Neuros are below.
Monty also found time to code Vorbose, which is a verbose Vorbis
stream analyzer.
Now that the Neuros work is finally out of the way, Monty's plans for
the immediate future include a Vorbis 1.0.1 bugfix release, which is
planned for early September, and resuming work on the OggFile API.
1.2 Jean-Marc Valin
Jean-Marc has fixed a couple of bugs in Speex's denoiser code, and he
has begun implementing echo cancellation.
1.3 Stan Seibert
Stan has been fixing a number of bugs from bugs.xiph.org in libao and
ogg123.
1.4 Ed Zaleski
Ed implemented an official Xiph.org Icecast Directory server. The
listing can be browsed at [3]http://dir.xiph.org. [4]Ed's
announcement describes how Icecast should be configured for listing
its streams there.
1.5 Brendan Cully
Brendan committed a few build fixes to icecast, ices 0.3, and libshout
2.
1.6 Karl Heyes
Karl has resumed his quest for beating the icecast build system into
shape. He cleaned up lots of code, moved things around to make room
for autoconf-generated files, and squashed numerous miscellaneous
bugs.
1.7 Mauricio Piacentini
Mauricio committed a patch by Steve Nicolai to the MacOS X VP3 codecs.
This patch allows transparency when playing movies in the Dock.
1.8 Dan Miller
Dan is still busy working on the Theora bitstream specification.
Currently, the specification only covers keyframes. If you are
interested in helping Dan, please contact him at
[5]danbmil99@yahoo.com or Jack Moffitt at [6]jack@xiph.org, or post
a message to [7]theora-dev@xiph.org.
1.9 Ralph Giles
Besides committing some build fixes to Vorbis, Theora, libao, and
libogg, Ralph added two third-party contributions, Oggsplit and Ogg
Writ, to CVS.
1.10 Jack Moffitt
Jack has been working on the RealPlayer Vorbis plugin, which is coming
along nicely. He also spent some time to help debug the cvs2svn
conversion script that will help Xiph in the conversion from CVS to
Subversion.
2 Recent Developments
2.1 Neuros Firmware News
As mentioned above, the [8]Neurosetta project has come to a close.
The actual release of the final Ogg Vorbis firmware is up to Digital
innovations, so please don't ask us when that will happen. Until then,
beta versions can be downloaded from the Neurosetta page or from
[9]Digital Innovation's Beta download page. The version on Digital
Innovation's site includes other new features not found in Neurosetta
Beta 2, such as WAV recording and playback and Linux USB fixes.
2.2 Speex ACM Codec and Netmeeting support
Christian Buchner [10]has announced the full release of the Speex ACM
codec. This allows the use of certain Speex modes in ACM aware
applications, which in turn allows storing Speex data in WAV and AVI
streams. More importantly, it allows Speex support in Netmeeting,
which requires a small tool by DarkAvenger, called [11]InstCodec, to
register the Speex ACM codec with Netmeeting.
2.3 Oggsplit
Philip Jägenstedt has written a useful tool to split the chained and
grouped logical Ogg streams from a physical bitstream into their own
physical bitstreams. The current version is available in CVS from the
ogg-tools module.
2.4 Ogg Writ
Arc has been working on a subtitle/caption stream format dubbed Ogg
Writ. The design of the stream format can be found on the [12]Wiki,
and the planned data structures have been checked into CVS in the writ
module.
_________________________________________________________________
Ogg Traffic for August 20, 2003
References
1. mailto:carsten@xiph.org
2. http://www.vorbis.com/ot/
3. http://dir.xiph.org/
4. http://www.xiph.org/archives/icecast/5414.html
5. mailto:danbmil99@yahoo.com
6. mailto:jack@xiph.org
7. mailto:theora-dev@xiph.org
8. http://www.xiph.org/neurosetta/
9. http://www.neurosaudio.com/support/support_updates_beta.asp
10. http://www.xiph.org/archives/speex-dev/200307/0012.html
11. http://darkav.de.vu/
12. http://wiki.xiph.org/OggWrit
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