similar to: Tarkin at last

I've been reading up on wavelet transforms the past week, and I plan to start on some video compression stuff next week, if it's any good (small chance :)) for Tarkin. So far I think I know what's happening, however there's one small thing I don't quite understand yet. If I understand correctly, you can do a 2d wavelet transform (I'm assuming a Haar transform here for

Me again, this time not about patents but about wavelets. I've been doing some work on an image compression method which uses Haar wavelets plus VQ and entropy coding, and Segher Boessenkool told me in a private message that you are also doing a video codec. So I searched the archives and read a bunch of posts, but I never did find out any web address. And it's not on xiph.org either. So

Hi, I'm interested in helping out with the Vorbis and Tarkin projects (in my already limited time!). I don't have an extensive background in all of the mathematics involved, but it looks like my mathematics from undergrad Physics is good enough to get a grasp on it. In the past few days I've started doing some reading on the mathematical basics. As part of my reading, I found

Dear David, I hope it's ok to forward your email to the developer lists. I have not seen a comprehensive scheme for MIME type naming and file extensions for ogg files yet - please anybody put me in the picture if there is. However, I have seen application/x-ogg used for ogg-vorbis files, which is according to MIME type registration rules an unregistered and experimental MIME type (see

Dear David, I hope it's ok to forward your email to the developer lists. I have not seen a comprehensive scheme for MIME type naming and file extensions for ogg files yet - please anybody put me in the picture if there is. However, I have seen application/x-ogg used for ogg-vorbis files, which is according to MIME type registration rules an unregistered and experimental MIME type (see

Dear David, I hope it's ok to forward your email to the developer lists. I have not seen a comprehensive scheme for MIME type naming and file extensions for ogg files yet - please anybody put me in the picture if there is. However, I have seen application/x-ogg used for ogg-vorbis files, which is according to MIME type registration rules an unregistered and experimental MIME type (see

Hi everybody, I wrote last time some code to do video compression using a 3d integer wavelet transform. Since it uses a reversible lifting scheme and avoids a lot of floating point operations compared to Jacks initial Tarkin code, this should be somewhat faster and allow lossy+lossless compression. The current implementation is very experimental, but nevertheless I would be happy if some of you

I sent a little mail some time ago asking if there was going to be an ogg pic-format, and you replied that PNG, MNG and JNG is good enough (sorry for this late answer btw).. But, consider this: The ogg video-format (tarkin ? where do you get these names from anyway ? :) ) needs a way to compress its frames. Are you going to use MNG for that ? :) .. If you had an ogg pic format, that format could

I have been very busy for the last few months with school, during which time Jack and others have taken over ogg123. Now I have a week off for Christmas ("Winter Break" for the politically correct), so I have some free time. And what better place to spend it than at my computer? (heh) So anyway I decided to take a look at (what's left of) ogg123. Yuck. Eeew. Horror. The good news:

On Thu, 2003-01-02 at 10:48, David Wheeler wrote: > > > Unfortunately, an Ogg file can (and will) contain different codecs in > > the same file. Imagine a file that contains two chained groups of > > multiplexed bitstreams. The first group contains vorbis, vp3, speex, and > > subtitle streams. The second group contains FLAC, MNG, and MIDI streams. > > [The fact

On Thu, 2003-01-02 at 10:48, David Wheeler wrote: > > > Unfortunately, an Ogg file can (and will) contain different codecs in > > the same file. Imagine a file that contains two chained groups of > > multiplexed bitstreams. The first group contains vorbis, vp3, speex, and > > subtitle streams. The second group contains FLAC, MNG, and MIDI streams. > > [The fact

just for the record -- I think you mean video/theora when you mention vorbis+VP3. Vp3 is becoming Theora. Tarkin is another video codec project at Xiph. As for this whole MIME type issue, can someone enlighten me as to how this problem is addressed with Quicktime, Microsoft, and RealNetworks plug-ins today? Also, does an MPEG4 tag specify which audio codec is used? thanks - dan

Suddenly, quite a few people have jumped in and started active experementation and discussion about Tarkin, as well as playing with the very rudimentary test-of-concept 3d wavelet coder jack, hatamoto and I hacked on last year. For your use, I've added a new mailing list, tarkin-dev@xiph.org, for discussion and hacking on Tarkin. The list is run, linked and archived at xiph.org like the

http://news.webnoize.com/item.rs?ID=11136 or Quietly Slipping into Audio Software, Vorbis Wants to Dethrone MP3 by Mark Lewis Confident they can oust the MP3 format from dominance, developers of Ogg Vorbis, an open-source, royalty-free audio encoding format, say they are making headway, getting their technology into software players, portable devices and

http://news.webnoize.com/item.rs?ID=11136 or Quietly Slipping into Audio Software, Vorbis Wants to Dethrone MP3 by Mark Lewis Confident they can oust the MP3 format from dominance, developers of Ogg Vorbis, an open-source, royalty-free audio encoding format, say they are making headway, getting their technology into software players, portable devices and

Kenneth Arnold (ken@arnoldnet.net) wrote : > On Mon, Oct 09, 2000 at 02:46:57PM -0700, Ralph Giles wrote: > > Re minimal facilities, all the compressed stream can really do is provide > > timestamps (or ranges). It's easy enough to keep track of exactly where > > you are in the decoder (libvorbis provides sample-accurate seeking, for > > example). What about

Thanks, Dan, for understanding what I meant with that sentence and clarifying it. I was indeed thinking of "video/theora" as MIME type to signify a theora & vorbis a/v-stream. If "Theora" is not the right name for this integrated stream, please come up with another one that is readable - I strongly dislike "oggvth". Silvia. -----Original Message----- From: Dan

Hi everybody, I was just wondering if there is a DRM (Digital Right Management) solution to use with ogg vorbis. Any information welcomed. Thanx Chris <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 'vorbis-dev-request@xiph.org' containing only the word

Hi everybody, I was just wondering if there is a DRM (Digital Right Management) solution to use with ogg vorbis. Any information welcomed. Thanx Chris <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 'vorbis-dev-request@xiph.org' containing only the word

> From: David Wheeler [mailto:dwheeler@ida.org] ... > > The #1 use of a MIME type is to launch an application to process > the data. If the MIME type doesn't include information on the > container format, then the application won't know what to do with > the result. You might as well ask, how does an application know what to do when it's launched from your