[4808] in linux-announce channel archive
Linux-Announce Digest #101
daemon@ATHENA.MIT.EDU (Digestifier)
Thu Apr 14 11:13:08 2005
From: Digestifier <Linux-Announce-Request@senator-bedfellow.mit.edu>
To: Linux-Announce@senator-bedfellow.mit.edu
Reply-To: Linux-Announce@senator-bedfellow.mit.edu
Date: Thu, 14 Apr 2005 11:13:04 EDT
Linux-Announce Digest #101, Volume #5 Thu, 14 Apr 2005 11:13:04 EDT
Contents:
ANNOUNCEMENT: checkurls 0.5.2 released (Marco Parrone)
Free / Open Source Software Survey (Florian Reiss)
libannodex 0.6.2 Release (Conrad Parker)
mod_annodex 0.2.2 Release (Conrad Parker)
----------------------------------------------------------------------------
Date: Wed, 13 Apr 2005 09:26:00 CST
From: Marco Parrone <marc0@autistici.org>
Subject: ANNOUNCEMENT: checkurls 0.5.2 released
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Hash: SHA1
Version 0.5.2 of checkurls is now available for download at:
<http://savannah.nongnu.org/files/?group=checkurls>
This is a bugfix release.
Here are the md5sums for the release:
43dfa7bf392301df5426399155dcfade checkurls-0.5.2.tar.gz
b70c17e39a2e99180217ab40558d9677 checkurls-0.5.2.tar.gz.sig
checkurls is a program meant to help peoples that are interested in a
lot of HTML pages and other files on Internet and want to spend less
time checking for updates.
checkurls takes a list of URLs, downloads the files at these URLs,
compares these with the old files, and if something changed it sends
an email to the user with a diff.
The checkurls web homepage is at <http://www.nongnu.org/checkurls>.
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------------------------------
Date: Wed, 13 Apr 2005 09:25:40 CST
From: freiss@gmx.de (Florian Reiss)
Subject: Free / Open Source Software Survey
Dear comp.os.linux.announce readers,
I am sorry for interrupting your discussion but maybe you are interested
in participating in a scientific survey...
I am currently writing my masters thesis in Psychology at the University
of Cologne, Germany. I am writing my thesis about the open source
community i.e. experiences of developers and users with the open source
community. By filling out a questionnaire I designed you would help me
to find out about personal motivations for knowledge sharing and
cooperation in software projects and software communities.
I would be very grateful if you could take 5-10 minutes of your time to
help me and would appreciate your experts opinion on the matter.
If you are interested in taking part in this survey please use the link
below to get to the questionnaire. In case you are not interested or
too busy you may simply erase this email.
Thank you in advance for your help!
Link to the questionnaire:
http://www.unipark.de/uc/survey/index.php3?a=lian
Details about the survey:
* The questionnaire is in English and in German.
* At the end of the online questionnaire you can take part in a raffle
initiated by me.
* The investigation is done anonymously which means that no personalised
links (invitation to the survey with an individual parameter) are used.
* The parameter "lian" is just used for methodical reasons in order to
know how you have been invited to the questionnaire.
* The investigation is done by a partially standardised questionnaire
(open and closed questions).
* No cookies are set.
* All participants will have access to the quantitative statistics on my
website.
* When the survey period has finished the completely anonymous data set
will be offered for download.
Best regards, Florian Reiss
---
Florian Reiss
freiss@gmx.de
59BE B457 80F3 EB5C C7B6 88F8 B373 FA57 1C53 407B
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------------------------------
Date: Thu, 14 Apr 2005 09:41:58 CST
From: Conrad Parker <conrad@metadecks.org>
Subject: libannodex 0.6.2 Release
libannodex 0.6.2 Release
=========================
libannodex is a C library providing a simple programming interface for reading
and writing Annodex media. Annodex is an open standards based technology that
extends the World Wide Web's hyperlinking, searching, and compositing
infrastructure to time-continuous data, enabling video surfing, searching for
clips of audio and video files using ordinary Web search engines, and
on-the-fly composition of a video on a Web server from previously annodexed
clips. For more information on Annodex, see http://www.annodex.net/
This release is available as a source tarball at:
http://www.annodex.net/software/libannodex/download/libannodex-0.6.2.tar.gz
New in this release:
* added new anx_get_duration() and anx_get_bitrate() API calls
* added new anx_get_clip_time_by_id() API call
* added new anx_get_mode() API call (ticket:92)
* added duration and bitrate display to anxinfo tool
* added --id argument to anxed, for remuxing from named offset
* fix some floating point rounding errors which caused clips to
be served about 0.1s late
* valgrind-induced cleanups in anxgrep
* Closed tickets:
#78: broken importing of anxv2 files
#88: offset links are screwy when importing some old files
#94: some time offsets skip the keyframe
#96: theora frame 0 is served on time offsets and shouldn't be
#97: bug in clip offsetting
#100: certain videos contain a corrupted <head> CMML packet
#103: libannodex: CMML clips slightly out of order
* updated libtool shared version info to 3:0:3
About libannodex
================
The libannodex source distribution comprises the C library libannodex,
plugins for importing CMML and Ogg media (Theora, Vorbis and Speex), and
the command-line tools anxenc, anxrip, anxgrep and anxinfo.
libannodex provides the following features:
* API documentation, with comprehensive examples
* Developed and tested on GNU/Linux, Darwin/MacOSX and Win32. May
work on other Unix-like systems via GNU autoconf. For Win32: nmake
Makefiles, Visual Studio .NET 2003 solution files and Visual C++ 6.0
workspace files are provided in the source distribution.
* A simple, callback based open/read/close or open/write/close
interface to Annodex media and embedded CMML clips.
* Plugin based importing framework, providing temporal interleaving
of multiple media and annotations data sources.
Full documentation of the libannodex API, customization and installation,
and reading and writing examples can be read online at:
http://www.annodex.net/software/libannodex/html/
Tools
=====
The libannodex source tarball also contains the following command-line tools,
which are useful for creating and inspecting Annodex media:
* anxenc: Encapsulate annotations and data into annodexed media.
* anxrip: Extract annotations and data tracks from annodexed media.
* anxgrep: Search for a pattern in annodexed media files.
* anxinfo: Display information about annodexed media contents.
License
=======
libannodex is Free Software, available under a BSD style license.
More information is available online at the libannodex homepage:
http://www.annodex.net/software/libannodex/
enjoy :)
--
Conrad Parker
Senior Software Engineer, Continuous Media Web, CSIRO Australia
http://www.annodex.net/ http://www.ict.csiro.au/cmweb/
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------------------------------
Date: Thu, 14 Apr 2005 09:40:10 CST
From: Conrad Parker <conrad@metadecks.org>
Subject: mod_annodex 0.2.2 Release
mod_annodex 0.2.1 Release
=========================
mod_annodex is a module for Apache httpd, and provides server-side support
for annodex media. Parallel versions are available for Apache versions
1.3 and 2.0.
Annodex is an open standards based technology that extends the World Wide
Web's hyperlinking, searching, and compositing infrastructure to
time-continuous data, enabling video surfing, searching for clips of audio
and video files using ordinary Web search engines, and on-the-fly
composition of a video on a Web server from previously annodexed clips.
For more information on Annodex, see http://www.annodex.net/
This release is available at:
http://www.annodex.net/software/mod_annodex/
New in this release:
* Support for named offsets of the form ?id=name, for example:
http://media.example.com/index.anx?id=introduction
You must upgrade libannodex to version 0.6.2 in order to make use
of this feature. (ticket:79)
* Allow handling of relative cmml import pathnames (ticket:83)
* Revert cmml preamble used when extracting CMML; the DOCTYPE used
was badly formed, causing problems with Mozilla
* Added X-Content-Bitrate-Average and X-Content-Duration HTTP
response headers
* Correct handling of HTTP methods: OPTIONS, GET, HEAD are handled
as required, and other methods are disallowed. (ticket:92)
* Portability improvements and other code cleanups
About mod_annodex
=================
mod_annodex is a handler for type application/x-annodex. It provides the
following functionality:
* Time URI handling
Time URIs (see http://www.annodex.net/uri/) are a way of addressing time
points in a resource. mod_annodex implements server-side timed query offsets,
such as:
http://media.example.com/fish.anx?t=npt:00:01:20.8
or
http://media.example.com/fish.anx?id=Preparation
A client retrieving such a resource will view the media stream immediately
from the requested time or named offset, allowing other annodex media files
or web pages to use such hyperlinks to link directly to a point of interest.
http://media.example.com/fish.anx?t=npt:00:01:20.8/00:02:30.4
A client retrieving such a resource will view the media stream immediately from 00:01:20.8, and ending at 00:02:30.4.
* CMML pre-processing
CMML is an HTML-like markup for media, providing timed hyperlinks, metadata
and annotations. Rather than storing fully encoded annodex media, mod_annodex
allows you to store the CMML and the source media file(s) separately. This
allows for easier editing of the annotations, as the CMML is plain XML.
mod_annodex then dynamically generates annodex media upon request of an
annodex resource.
* CMML extraction
If the Accept: HTTP Request header prefers type text/x-cmml over
application/x-annodex, then CMML content is returned. This content is
produced either dynamically by extracting it from stored annodex media, or by
serving a stored CMML file. This behaviour is invoked when a client includes
an Accept HTTP Request header such as any of the following:
Accept: text/x-cmml
Accept: text/x-cmml;q=1.0, application/x-annodex;q=0.5
However, annodex media is served if a client includes an HTTP Request header
such as any of the following:
Accept: */*
Accept: application/x-annodex
Accept: text/x-cmml;q=0.5, application/x-annodex;q=1.0
Accept: text/x-cmml;q=0.0, application/x-annodex;q=1.0
* Annodex version 3 support
Annodex version 3 allows efficient streaming of multimedia content from
arbitrary time offsets. It does this by providing clues in Ogg Skeleton
headers to allow recomposition from keyframe offsets. This ensures that
information required for correct rendering is possible, such as the prior
Ogg Theora video keyframe and the current CMML clip.
Through libannodex, mod_annodex also provides read-only support for reading
and importing Annodex v2 content to allow existing content to be recomposed
in v3 format without modification.
License
=======
mod_annodex is Free Software, available under the Apache Software License
version 1.1.
More information is available online at the mod_annodex homepage:
http://www.annodex.net/software/mod_annodex/
enjoy :)
--
Conrad Parker
Senior Software Engineer, Continuous Media Web, CSIRO Australia
http://www.annodex.net/ http://www.ict.csiro.au/cmweb/
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