Displaying 20 results from an estimated 1000 matches similar to: "FOSS Codecs for Online Video: Usability, Uptake and Development - First Draft"
2007 Dec 04
1
FOSS Codecs for Online Video: Usability, Uptake and Development
Hi Xiph/Theora Folks,
I'm happy to announce the release of the second draft of this report,
which is now available for public circulation. Many thanks go to those
who contributed their feedback after the first draft.
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FOSS Codecs for Online Video: Usability, Uptake and Development*
A
2007 Aug 27
1
Pure Java theora implementation - LGPL
I've started working on a pure-java port of Theora under the LGPL, as a
subproject of FMJ, the open-source implementation of JMF. It is similar
to and dependent on the jogg/jorbis libraries from jcraft.
The Cortado implementation is nice, but since it is GPL, that is too
restrictive for FMJ, which is LGPL.
This is, naturally, a large undertaking, and any help by anyone
interested would
2008 Mar 26
3
Theora logo master
Hello
I would like to ask if it's possible to display Theora logo at
http://ronja.twibright.com/sw.php
I use Theora for automatically generated videos at
http://ronja.twibright.com/3d/
If yes can I please have the master of the logo? I cannot use the small logo you have
on the website.
Thanks,
Karel Kulhavy
2006 Jul 02
5
What goes to Hardware ?
Hi people,
As I said before: I did the IDCT to run on the FPGA.
My friends from university did the Reconstruction routines running on the FPGA.
I'm helping with the LoopFilter, and it is almost there.
(all VHDL)
I did a small profiling of the libTheora running on a Altera Stratix II device:
The processor used was the NIOS II with 8Kb of data and instruction
cache, branch prediction and
2006 May 30
2
16 bits, cast on idct function
Hi all,
Just a stupid question
The IDctSlow function on file idct.c has this line :
ip[0] = (ogg_int16_t)((_Gd + _Cd ) >> 0);
The ip[0] , _Gd and _Cd are of type ogg_int32_t
My question is:
The result of (_Gd + _Cd) can be a number with more than 16 bits ?
(yes, it can be because they are int32, but the algorithm could
guarantee something about that... I dont know...)
If
2008 Apr 04
5
Uptake of wine users
I hazard to submit, more people are turning to opensource as XP becomes
obsolete.
Perhaps it is time to dust off the 101 material and get it ready to cut and
paste in...
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2007 Oct 02
3
Multi-Thread Theora Encoder
Hello,
I'm happy to announce I developed a Multi-Threaded version of the
Theora encoder. I changed the Motion Vector Search part of the
algorithm to be executed in parallel.
I've chosen the Motion search part after a careful set of profilings
that shown that the Motion Vector Search is responsible by 70% of
CPU-time on average and up to 95% of CPU-time in some cases. I also
have chosen
2011 Jan 22
2
ffmpeg2theora multi-threading
Is there a way to use multi-threading with ffmpeg2theora? Pretty much any
type i'm ok with, including multi-threaded theora encoding or multi-threaded
ffmpeg decoding, or using half of my cpu cores on ffmpeg decoding and the
other half on theora encoding. Is there a way to do multithreaded thoera
encoding?
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2009 Apr 13
2
academic papers that promote theora
Are there any academic papers that promote theora?
I know of one, are there more?
Universal Multimedia Access and Open Standards
<http://www.t4p.no/t4p.no/conference/media/Vaaler.pdf>
tom_a_sparks
Please avoid sending me Word or PowerPoint attachments.
but instead use OpenDocument File Formats or
use OpenOffice
http://en.wikipedia.org/wiki/OpenDocument
2008 Mar 24
2
Theora performance
Hi list,
I just came across this site:
http://web.mit.edu/xiphmont/Public/theora/demo.html
I was wondering are these issues being addressed or will be addressed before
the 1.0 release?
Theora is like the only open sourced free code people can use, i will be
nice if it performs close to other libs.
please keep up the good work!
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2007 May 07
2
Theora running on FPGA
Great news! Theora is running on FPGA.
After almost a year of a great effort we have Theora validated on
FPGA. Now I will try to integrated the hardware with a video
controller to see the video!
I completely implemented the ExpandBlock, CopyRecon, LoopFilter and
UpdateUMVBorder functions.
The ReconRefFrames function was partially implemented and the part
before will run on a software compiled
2011 Mar 18
3
alghorithm of working encoder in libtheora
Hi,
Is somewhere alghorithm description of encoder process implemented in
libtheora? May be some drafts? May be frame dataflow throw encoder stages?
PLEASE
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2006 Jun 21
2
Theora MMX and Mac OS X Intel
hi,
i was trying to enable the mmx code on mac os x.
to get to that point one has to replace some inline assembler code:
.balign 16 -> .p2align 4
and replace .rept .. .endr with #defines.
but to makes things more complicated apple's GAS does not support
movsx instructions and thus the following line does not work:
" movsx %%di, %%edi \n\t"
[ more details at
2007 May 09
2
Next step of Hardware Theora
Hello,
First of all, I would like to say that my work that I wrote in the other
email would be to do in hardware the functions: CopyRecon, LoopFilter and
UpdateUMVBorder. These are modules that Leonardo had made, but it wasn't ok
in FPGA. When I had a chat with Leonardo we were thinking in rewrite these
module for to do this running in FPGA (to debug in a Hardware level is much
more
2005 Nov 10
2
Xen 3.0 User''s Manual
Hello all. I''m the tech writer at XenSource, Inc., and I''ve been asked
to ride herd on getting the revised Xen 3.0 User''s Manual put together,
reviewed, etc. We are targeting a review draft for 11/21 and it would be
great if any significant additions or changes that any contributers
might be making could get checked in before then so the review process
can be as
2006 Nov 30
1
CMS Poll
RYX is conducting a poll on the forum regarding the use of a CMS for our site.
If you plan on contributing to the website and/or wiki then you should
express your opinion here:
http://forum.go-compiz.org/viewtopic.php?p=800#800
Jeff
2006 May 12
21
Drupal vs. Ruby on Rails
Hello all,
Maybe the $subj is a little bit weird (i.e. apples vs oranges) but it is
a situation i am facing at the moment: We are developing a small web
site which will be mostly a CMS (more or less) and my colleagues is
arguing for drupal, and i am for RoR.
Maybe i can formulate the question in a different way: when to use a CMS
(not necessarily drupal but e.g. Radiant CMS) and when to use Ruby
2006 Oct 21
3
Web site development and security
Hello all,
I'm looking at building a website and extranet on my CentOS server for my
home business. I use PHP for my intranet but I hear PHP is a big security
sieve. Can anybody recommend good books on website security and
development? Which procedural language should I use to do this?
I apologize and realize this may not be the right site for this but it seems
there are already a
2006 Dec 20
1
SVN Theora FPGA
Hi, I did some improvements and some bug corrections in Theora FPGA
code. I'd like to post this new version in the SVN. How can I do that?
Thanks
--
Leonardo de Paula Rosa Piga
Undergraduate Computer Engineering Student
LSC - IC - UNICAMP
http://www.students.ic.unicamp.br/~ra033956
2007 Oct 23
1
Possible errors in the spec..
I just downloaded the libtheora-1.0beta2 and found some sentences in the
spec that I believe are wrong:
1 - In section 6.4.4 "DCT Token Huffman Tables" step one says: "For each
consecutive value of hti from 0 to 80, inclusive". As I understand there
should be only 80 tables so shouldn't it be "0 to 79, inclusive" instead of
80??
2 - In section 7.4 "Macro