similar to: Review of Mpeg-4 & on2's vp3...

Displaying 20 results from an estimated 300 matches similar to: "Review of Mpeg-4 & on2's vp3..."

2003 Apr 19
0
review of video codecs
I appreciated the link to http://www.techimo.com/articles/index.pl?photo=33&SID=12&tag=SNnb323 although, as Freun said, it was "Not really all that informative,..." Is anyone aware of a site that has a downloadable video clip that was created for comparison purposes with different video codecs (MPEG 1, 2, 4, divx, Windows, Real, VP3, VP4, VP5, and so on)? Preferably, each
2003 Mar 23
6
A comparison of VP3, and two MPEG-4 variants
a couple points before I look at this too hard: "For VP3, since you can't do a constant quality encode" what? that should not be the case. Could be a QT-specific bug. Theora at any rate is certainly capable of doing constant-quality encode. This probably explains your standard deviation complaint -- VP3 is running a rate control alg, where the other codecs are just shooting for
2002 Nov 11
3
Theora vs. Nullsoft NSV
How does the Theora project differ from Nullsofts NSV project? Other than the obvious fact they use mp3.... <p><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'theora-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is
2007 Jan 16
2
On2 VP3 codec for Intel macs
Hi all, It's been a few years since I encoded a number of movies using the VP3 codec (v3.2) on my Quicksilver PPC. Now I have a new Intel mac and I'd like to play them. However, it seems that the codec offered on On2's website is only for the PPC architecture. Does anyone know a workaround or some other codec that works on the MacIntel platform? I'm using Quicktime Pro 7.
2002 Nov 11
2
Quality of vp3.2 codec?
How good is the video compression in vp3.2? For example, how does it compare (bit rate & quality) to mpeg1, mpeg2, Divx, real Video 8+, Windows Media, etc. etc. It being open source is nice and all, but if it can't be reasonably competitive then there isn't much point to it. I just haven't seen anything that compares vp32 to anything else. (Although to be honest, I haven't
2004 Jul 11
17
Independent implementations?
Hullo, When people ask me what Vorbis's license terms are, I usually tell them that the bitstream format is in the public domain, that the reference libraries are licensed under a BSD-like license, and that the example programs are licensed under the GNU GPL. (Note the distinction between filespec and implementation here.) Meanwhile, Theora.org's FAQ doesn't say anything about the
2002 Aug 05
3
Cross-Compiling VP3 lib on Linux
Hi, I have been working with VP3 for some time now. Dan Miller from On2 just told me about this list. A few months ago, I managed to get On2's VP3 source snapshot to compile under Linux, a feat that many have apparently attempted and quickly abandoned. I compiled a small console app and the results of the experiment are explained here:
2002 Aug 06
1
VP3 Patch For xine
Hi, Since a number of people are eager to try out the native VP3 decoder in xine, I have made a patch available, bz2-compressed: http://www.pcisys.net/~melanson/codecs/xine-vp3-decoder-patch.bz2 To work with this patch: 1) Get the latest xine-lib from CVS. Visit this page for more details: http://sourceforge.net/cvs/?group_id=9655 The module name is xine-lib, but you will also need
2005 Mar 09
2
VP3 Compatibility and SIMD Optimizations
Hi, A few questions: Is libtheora strictly backward compatible with VP3? Can I set it up to shove raw VP3 data through and trust it to decode the same way as On2's open source code did, loop filters and all? Also, is libtheora just supposed to be a C-based reference implementation? I was looking through the code and noticed a distinct lack of any kind of optimizations. Naive tree-based
2003 Jun 17
0
FW: 3274253-docked On2 movies don't draw the video frame
this just in -- who can take it? (Mau??) I have no access to a Mac to even test the bug right now.. ___ Dan Miller (++,) Founder, On2 Technologies <p>-----Original Message----- From: devbugs@apple.com [mailto:devbugs@apple.com] Sent: Tuesday, June 17, 2003 2:21 PM To: Dan Miller Cc: gao@apple.com; Doug Mcintyre Subject: Re: 3274253-docked On2 movies don't draw the video frame
2002 Jul 23
1
VP3/QT: A new kdxlqt_CodecVersion patch
The new 3.2.6.1 codecs work great with QuickTime 6 (thank you!), but there's no way for an application to identify them. And since the older 3.2.1.x and 3.2.2.x installers will actually *downgrade* the installed version of VP3, it would be nice if an application could warn the user. The attached patch increments kdxlqt_CodecVersion (and documents all the Component Manager arcana involved).
2009 Aug 05
3
Google is acquiring On2
FYI, Google is acquiring On2: <http://www.betanews.com/article/Future-of-open-Web-video-may-change-with-Google-acquisition-of-On2/1249481107> Also on Slashdot: <http://tech.slashdot.org/article.pl?sid=09/08/05/1742249> Anyone knows what, if anything, this means for Theora, open video and/or the Xiph.Org Foundation? Wild speculation: considering that they complained about the
2009 Jul 04
2
Some questions about Theora IP
Hello Theora developers, I'm doing some cursory research into Theora's IP status in preparation for asking Apple to reconsider the possibility of shipping an implementation. I have a few questions and I'm hoping knowledgeable people can help out. 1) What are the terms of any patent licenses or disclaimers, and do they have field of use restrictions or limitations on code for
2009 Jun 05
1
macro block artifacts of ogv file converted from mpeg(libthusnelda I 20090527)
hi, there is a problem when i convert some mpeg files to ogv with libthusnelda I 20090527... i don't know it this helps you but i am sending information about it... when i convert an mpeg file ro ogv, there are macro block artifacts on the lower part of the video... but it doesn't happen all the time... description is below and you can download the video files form the link below if you
2004 Oct 28
1
Re: DSP stamp
Yes, the Theora codec is based on VP3, which is an earlier version of ON2's VP6 codec. Theora is currently at its alpha 3 release, and is stable enough to have been used already for streaming live video from a number of conferences, and for encoding several videos that can be found at www.theora.org. Development has progressed to the point that the value of the codec can be seen. That
2005 Mar 28
0
Theora and software patents
The list probably did not get this reply from D Richard Felker III. Having read quite a few patents I tend to agree with Richard: Software patents are very broad and even if I have not read the source code of Theora I would be surprised if it did not infringe several patents. However, I believe the argument that On2 has not been sued for infringing the MPEG-patents is a very strong argument.
2004 Oct 29
2
Fwd: RE: DSP stamp
Are we interested, or ready for this? Andrew Seddon is offering to provide hardware to port Theora to the DSP Stamp. http://www.linuxdevices.com/news/NS4405077268.html John ---------- Forwarded Message ---------- Subject: RE: DSP stamp Date: Friday 29 October 2004 03:50 am From: "Andrew Seddon" <andrew.seddon@camsig.co.uk> To: "'John Kintree'"
2013 Jul 29
0
[PATCH 3/3] drm/nv31/mpeg: don't recognize nv3x cards as having nv44 graph class
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c index 9f7c7d5..c190043 100644 --- a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c +++
2013 Sep 05
0
[PATCH] drm/nv31/mpeg: no need to set compat mode differently for nv44 gr
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- Tested on NV42 and NV44. drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c index b966728..1ab1c7f 100644 --- a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c +++
2013 Dec 07
0
[PATCH] nv50: enable MPEG-4 for NVA3+ (VP4.0)
From: Martin Peres <martin.peres at labri.fr> This patch is a follow-up from Ilia Mirkin's enable H.264 patch which solves the problem that prevented MPEG-4 videos to play correctly. Tested on an nva3. Signed-off-by: Martin Peres <martin.peres at labri.fr> Tested-by: Martin Peres <martin.peres at labri.fr> Cc: "10.0" <mesa-stable at lists.freedesktop.org>