similar to: end-user mode for a moment (side-by-side tests)

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

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

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

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

Hejsan ! I am currently investigating new, more modern approaches to encoding video with depth data based on my old data format MPEG Z/Alpha in http://www.geofront.se/products_software_mza.php and became therefore interested in Ogg Theora, as an alternative to MPEG-4 encoding - what I would need is two video streams in one system stream (is that the right terminology in Ogg ?), and decode them

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

Hi List, Just batting a few ideas around here, but would it be possible to include in to the codec, estimation for common video artifacts that occur in the analogue world? For example, anything that's gone through a composite stage will likely have dot-crawl and false colour - if we can recognise this effect in the encoder, we can treat it as a special case. Other artifacts that come to

I was just thinking last night, how about this: For each frame, detect edges and divide the frame into a bunch of non-overlapping polygons. Extract textures from the first frame, then save changes in polygon vertex coordinates only, unless the textures change too much in which case new textures (which could be wavelet compressed) would be stored. Also, if the movements of the vertices would

I know this probably transcends the scope of the current aims of Ogg video, but one thing I'd consider extremely useful is a lossless video compressor. There are a few of them out there (e.g. PICVideo's lossless wavelet codec) but I've found no free ones so far. The primary use would be for storage of video clips that would be too cumbersome to store as raw frames but still require

Hello I posted these to the vorbis maillist, but got no answers, so I try it here again: Currently, I'm having a very close look at the spec and discovered some mistakes, misundestandings: 1--------- in "vorbis-spec-res.html" paragraph Residue format Reside format partitions each......... ^ heres the 'u' missing. <p>2-------------- Probably another one in

I know Tarkin is not the priority right now, but when it becomes it's good to know which company might feel nervous... ------------------------------------------ Compaq sued for alleged patent violations By Bloomberg News November 20, 2000, 5:30 a.m. PT WILMINGTON, Del.--Compaq Computer, the world's biggest personal computer maker, has been sued by a group for allegedly infringing

There has been talks on the User list about registering atleast one MIME type with the IETF for .ogg files. I am familiar with the procedures for this and will start doing it right now unless someone urgently wants me to stop. A discussion concerned wether audio/ogg or application/ogg should be registered, I will most definately register audio/ogg for Ogg Vorbis, and in the future video/ogg may

[pardon me if this retreads some ground, but I'm just getting up to speed on this issue] so am I to understand -- application/ogg is for downloading, and will invoke an app that supposedly can parse *any* ogg file -- audio/vorbis is for streaming -- but this is narrowly defined as vorbis audio only. Presumably the thinking is that a streaming application is likely to be less

After reading http://mp3.radified.com/mp3.htm I sent Rad an explanation of some things as I understand them. He liked it and posted it on his site (still unlinked, use the URL below). Can somebody with better understanding of psycho-acoustic terms and the vorbis model check it and comment on it? In particular I didn't know how vorbis handles quantization noise. If you reply with

I hope this list is small enough for not beeing banned when introducing oneself. So... Hi, I just subscribed to the theora-lists. I'm from the XVID project, so I know a deal about video and MPEG-4 in particular, but nothing about Vorbis/Theora etc., That's why I'm here, because I'm interested in patent-free alternatives. I guess there is no documentation of the current status

For all the curious: http://www.vorbis.com/~jack/tarkin-experimental.tar.gz ome instructions: tar xzvf tarkin-experimental.tar.gz cd tarkin make ./tarkin 95 ./tarkinplayer output.tark You'll need SDL and SDL-devel if you don't already have them. jack. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this

For all the curious: http://www.vorbis.com/~jack/tarkin-experimental.tar.gz ome instructions: tar xzvf tarkin-experimental.tar.gz cd tarkin make ./tarkin 95 ./tarkinplayer output.tark You'll need SDL and SDL-devel if you don't already have them. jack. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this

Hello, I have proposed to WebM to use FLAC in a future version. Since FLAC was designed a decade ago, I was wondering if there were any new compression techniques that FLAC could use in a new version to improve compression ratios. If so, it would be worth synchronising with WebM for compatibility reasons. Here's the WebM discussion: