Hi` I just subscribed to the list and already have a couple of questions ;) I read the FAQ and skimmed through the archives but I'd rather get up- to date information and not rely on what I read in old posts. Are there any games/ mods using Ogg Vorbis? Are there any other tools despite standalone music players using Ogg Vorbis? How fast is decompression? How big is the memory overhead for decompression? How many people are actively working on Ogg Vorbis? Is there funding behind Ogg Vorbis or are all contributors working on it for free? What's the roadmap for Ogg Vorbis? I read that the decompression code hasn't been optimised yet so I'm wondering whether there is an ETA for that or not. Maybe some of the questions might sound strange but I'm trying to get a broad overview and am wondering whether Ogg Vorbis would be suitable for game development :) From a development point of view my main concerns are stability and decoding speed. - Daniel Vogel, Programmer, Epic Games Inc. --- >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-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
> I just subscribed to the list and already have a couple of questions ;) I > read the FAQ and skimmed through the archives but I'd rather get up- to date > information and not rely on what I read in old posts. > > Are there any games/ mods using Ogg Vorbis?Yes. Two commercial releases: Operation Flashpoint and the new Star Trek game both use Vorbis. many other games will probably use vorbis in the future. There are probably a handful of non-mainstream games as well.> Are there any other tools despite standalone music players using Ogg Vorbis?Besides games? Yes. There are a few Virtual DJ apps. There's icecast (streaming media server). And Sonic Foundry has added vorbis support to Sound Forge, ACID and Siren. I assume it will be in Vegas and other products from them as well. There are CoolEdit filters too.> How fast is decompression? How big is the memory overhead for decompression?Generally about 3-5% on p3 or so. beta4 was considerably faster than beta3, and the next release should be considerably faster still. There's lots more possible optimization, and we haven't really done much assembly optimization yet.> How many people are actively working on Ogg Vorbis?4-5 people working on it quite regularly, and probably upwards of 10-12 with active interests who regularly hang out, help out, and contribute in other ways than coding on the main things.> Is there funding behind Ogg Vorbis or are all contributors working on it for > free?iCast used to fund it to the tune of 3-4 fulltime people on it. Since november we've been continuing on our own funds, and recent have started a non-profit and begun to raise money. There's enough interest in vorbis already that we spend some time on vorbis related contracts.> What's the roadmap for Ogg Vorbis? I read that the decompression code hasn't > been optimised yet so I'm wondering whether there is an ETA for that or not.The loose timeline for a 1.0 is sometime this summer. monty may smack me for that, so don't quote me on this. The roadmap for 1.0 is: optimization new floor code (floor1) channel coupling cascading codebooks Someone will chime in if I've left something out. None of this is really going to affect games developmeent except floor1 and optimization (floor1 is supposedly much faster than floor0).> Maybe some of the questions might sound strange but I'm trying to get a > broad overview and am wondering whether Ogg Vorbis would be suitable for > game development :) From a development point of view my main concerns are > stability and decoding speed.We're targeting you guys. If something's not to your liking, we are doing something wrong :) Please let us know if you have any questions. jack. --- >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-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
At 03:27 AM 4/28/01 -0400, you wrote:>Hi` > >I just subscribed to the list and already have a couple of questions ;) I >read the FAQ and skimmed through the archives but I'd rather get up- to date >information and not rely on what I read in old posts. > >Are there any games/ mods using Ogg Vorbis?2 that have been released: Operation Flashpoint Star Trek: Away Team There may also be mods using vorbis, as opposed to standalone games, but I'm not aware of any (I haven't looked).> >Are there any other tools despite standalone music players using Ogg Vorbis?Not quite sure what you mean here. There are a fair few tools for manipulating/creating/etc. vorbis files. Can you be more specific?> >How fast is decompression? How big is the memory overhead for decompression?As far as complexity goes, decompression is similar to mp3. The current implementation is, however, still a fair bit slower than the best mp3 decoders (it's faster than the really bad ones, but 50% or more slower than the best. There's no significant assembly optimisations in place, though, so big improvements should be possible.>How many people are actively working on Ogg Vorbis?The core development team is about 4 or 5 people, I guess.> >Is there funding behind Ogg Vorbis or are all contributors working on it for >free?There was funding until late last year. At the moment, all contributors are working on it for free. However, several are paid for vorbis-related contracting work.> >What's the roadmap for Ogg Vorbis? I read that the decompression code hasn't >been optimised yet so I'm wondering whether there is an ETA for that or not.It has been somewhat optimised, but a fair amount remains. The roadmap from here consists of completing the core libraries - there are a number of features that haven't been done. Parallel to that, optimisation continues whenever people have time for it, tools development is ongoing, etc. The API is complete, and we expect to maintain binary compatibility from here on until at least version 1.0 (and source compatibility well beyond that). The main 'missing chunk' of work before 1.0 is further features, most of which are aimed at lower bitrates and/or streaming. One thing that Monty is currently working on will increase quality (hopefully) and provide an alternative to one of the slowest parts of decoding - so that'll make decode significantly faster.> > >Maybe some of the questions might sound strange but I'm trying to get a >broad overview and am wondering whether Ogg Vorbis would be suitable for >game development :) From a development point of view my main concerns are >stability and decoding speed.It's certainly suitable. Stability should not be a problem - libvorbis is very stable - I've had programs decoding multiple streams in parallel for days at a time, in some cases. Decoding speed may be of concern - but it is not particularly bad, and is improving. If any of my answers above haven't covered what you wanted to know, please ask again. Michael --- >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-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
> More encoding options (true VBR management engine).I'm glad to see that is on the agenda. I'm interested in a constant quality rather than a (almost) constant bitrate. Cheers, Ross. --- >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-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.