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- jack: what's the end of your range jm? - n: probably assigning to tim, but forgot when ran the tool ...

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...ication, answering each question in plenty of detail. The more information the better - though we might ask you later for more details anyway. You can fil ...ubmitting sample code are highly recommended bug fixes even better :) Join the [http://lists.xiph.org/mailman/listinfo/icecast-dev Icecast developer maili ...

- derf: we met a promising candidate at PCS. she's worked on the same training problem nathan has worked on but on predictors in time domain ...4x4 predicted each block and then TFed back up to compute the residual at the end. ...

...e spot, waiting on Andreas. Haven't done anything on demo5. Was working on the crazy idea from last week. ...ch made it not reversible. The rotational transform is interesting though. The bit I got distracted on was attempting to remove refractions, but I've conv ...

...imating the pixels. if EDI doesn't work on that, then it could be a bug in the implementation. ...s worth trying this. it's easier to do this than the classification stuff. the interpolation code classifies pixels already. ...

...ia is the one web site where you’ll find everything you need to know about the media formats that will help build a better world. And if you believe in o enemy. So come join the fight to free the content you care from the corporations that want to restrict your rights and lock your files. ...

...ifacts. I didn't generate images because I wasn't quite sure what the best thing to generate was. We can see easily. It's at least helping on the edges of the dunes. The color edges are just chroma contrast so they don't show up. I'm not sure ye ...

...Do we go with Tran paper or JM's thing. It comes down to the data. Where's the data? ...ork yet). I also run PSNR optimized because I don't have PSNRHVS or any of the other metrics that JM has. I switched JM's to max 16x16 too. What I saw thi ...

- use a QM across the entire block (not per band) - use a QM for block based on the lapping ...

...z and vert in one band and diagonal in one band. that one was the worst of the two. splitting horizontal vs. vertical gave similar results--maybe slightly - derf: i assume the issue is overhead of the additional parameters. ...

- d: Bkoc needs a room for the coding party, he should nag jack - d: Google asked us to present at the VP9 summit ...

m: I'll update the demo jm: the only thing I'm working that will improve still image compression is a long way away ...

...rom vq. if i correct for all that, vq is now 1% better in metrics. it gets the edges slightly better in metrics. i'm no longer sure we really want to go t ...t is not to the credit of vq. the images are sitll slightly better despite the metrics being very close. ...

- j: what about the upsampling test from last week? - s: I haven't done the up/downsampling tests yet, but i'll do that next. ...

- jm: what's the status with the scaling patch? - u: i sent an updated one but you found some rounding thing that i'm looking at now. ...

...he first step is to make things bigger and then go back later and add back the smaller blocks. Looking for volunteers to review that as it's almost done. ...change will show most change in SSIM. It does show the greatest change in the metrics. On sequences where we saw quilting (changing seats and sintel) we ...

...w do we apply this to actual video as opposed to still images and avoiding the refiltering problems. - x: park joy wiggle trees! i think this falls under the category of instagram filter and not a lot more. i don't know how to use it ...

...ve the original intraprediction. If this works out it dramatically reduces the cycles. - d: The complexity just moves to this postfilter. ...

- Mostly disables RDO in Intral prediction at the moment - j: is the training tool getting checked in? ...

...ly the Haar transform to the DC, starting with 32x32 superblock and coding the averages, and then going further down. but i'm kind of looking for ideas on - derf: depends on metric. it was more for the metrics we suck at. ...

...frames). on the clips that i tested on, doing that didn't seem to improve the results at all, but didn't hurt either. - jm: i would not expect it to help the curves, but visually. mostly at low birates. ...

...The next thing to do is the asymmetric 16 point DST. I can piece together the 32x32 DCT from that. Does that seem reasonable? - d: I'd have to look at a diagram or the code. I can't just answer that from a description. ...

- j: I'll give you a link so you can compare the two predictors ...esting my patches right now, but considering that tim landed 31 patches in the code I am working on it is coming along ...

...16x16 and that's why it's not done yet. i left it running for 2 days with the old code, and i didn't notice it until yesterday. - xiphmont: i am running my own RDO tests but was curious what the status was. ...

...y in the current code by companding and uncompanding the gain. at least in the case where there is no theta, is there more to it? jm: computing k is a function of the gain. ...

...ng we'll go through quickly and assign and those should get done by end of the week. - jm: here are the projects: ...

- jm: What's the status of all the papers? Mine has a completed first draft. So I'd like to get some review fr ...ual masing is controled by gain, but it seems in the newest version one of the parameters is gone. ...

Hardware support status for Ogg Theora is a new thing, but it seems it's sometimes included even if not advertised. If you can't ...y hardware or projects that are not yet mentioned here, please add them to the list. ...

...omething in all the bins where it actually makes sense and leaves it up to the encoder to encode noref or not. In no case would not putting something in a ...s. It fails most of the time. However, there is a noref that will cover up the bad predictor. I made a random change to not code outside of some 4x4 coeff ...

...ew shortly. TF'd 8x16 appears to be no worse, despite predicting from half the data. ...gs we should use a couple iterations of Gauss-Seidel instead of re-solving the system every time (cutting out a factor of O(N)). ...

gmaxwell is on vacation, so don't pick him as a reviewer until the 18th :) ...lution but the iterative solution converges. We can decode everything, run the preidction at 4x4, and we're closed loop because we have ??? ...

...asks here. one is to find a test to evaluate the residual performance, and the other is a collection of videos that we all agree to test on - j: was jm talking about the latter? ...

...ing at the graphs, it was dramatically better than subset1. when it got to the end it went right to zero. - derf: we didn't save any of the intermediate steps did we? ...

...DC you just use the normal dc and use the k tokenizer for the remainder of the coefficients. - u: no it's recording the dc as is. ...

...one at FOMS (Friday before), project overview at FOSDEM. But it's kind of the wrong order. - j: Can't be helped since the general one should be for the more general audience. ...

658: shouldn't be doing clamping in the metrics tools. can do this in the decoder instead. ...ou get noise amplification. Quantizing ref frames to 8bit is the source of the noise. ...

...n my branch. I can't figure out hwo to do that other than turn on AM after the block size decisions are made. ...definitely be normalized different. THe first results he reported were in the break even stage, and now we're sitting at 18% on PSNR. What changes caused ...

...ally slow. On some clips, at exceptionally low bit rates, e.g. 0.007 bpp, the lines do cross on some clips which is not what I would expect. - x: as far as I know this is the only place where 12 bit is not as good as 8bit ...

...than what we had before. but very small differences. i haven't tried it in the codec yet. - jm: just the prefilter, not the intra right? ...

It can be obtained from the [https://www.rogueamoeba.com/nicecast/ official Website], which provides a or the option to buy it. ...

- increasing the range of Motion Vectors? [some debate, TD wins the bloodbath, but derf gets the late win] ...

- d: sent email about this to the internal alias. extended abstracts are due next week. - d: i will raise that with the organizers. ...

- Decide the fate of deringing - j: This is the simplest thing that I could amke work ...

...ell: working on the det1 DC basis problem; trying the easiest most obvious thing first (optimizing based solely on DC leakage) didn't work out so well. ...th it limited to low leakage results and using leakage as a weak weight in the search. ...

'''Students''' please use the template at [[Summer of Code Applications]] when applying for a GSoC positi This year Xiph.org is focusing on the Icecast streaming multimedia server for its GSoC participation. Both audio ...

- jack: tim will give a talk to the research team on halloween. we also thought it might be good to give a talk - jm: it probably makes more sense in something at the coding party. i wanted to have these talks to introduce a topic. ...

...l: jean-marc doesn't think it's necessary. becaue we're scaling up we lose the bi-directional round-tripping feature. - jm: the only case where det1 makes a difference now is lossless, not even high rate ...

...f people itnerested and grabbing me after. It took me a half hour to leave the room. ...in IRC who came to the talk. I believe there will be coverage about it in the next LWN. ...

...ungeon/6809/vorbis-optsort-en.html Vorbis-OptSort] improves source code of the Vorbis codec library (libvorbis-1.2.0) to accelerate encoding time about 10 * The latest release is aoTuV beta6.03 (May 2014) - correct as-of December 2014. ...

- d: Best list right now are the issues in GitHub. We have a number of them tagged as Bug or Easy. - jm: What day is the BoF? ...

...e a blend function that works and have a prediction function that predicts the right frame. ...the MVs don't get screwed up, but I need to look at them more. For coding the predictors, I haven't touched that so it's bad. ...

u: I had the same question about the CfL PVQ tuning branch I reviewed, that is going to go into a branch? t: they are being blocked right now on upgrading the jenkins VM. ...

...ry software, even though the result is everyone in mountain view sittingin the same room each with headphones on and maximally distant. - d: That's a different thing. I don't think we should make this meeting longer just for that. ...

...correct the scale factor between the different levels. she managed to make the curves go down a bit, but she hasn't gotten very far. ...t code the blocks outside the frame. I'll try and send a patch for that in the next day or so. ...

...tance in starting development of Mozilla Firefox plugins on Windows. After the generic development environment setup we present the setup of OggPlay Firefox plugin for Vorbis/Theora OggPlay player plugin. If ...

...o or its wiki-edition visit [[A Digital Media Primer For Geeks (episode 1)|the main video page]]. =The making of…= ...

...astroska tools can generate [completely] valid WebM. mkvmerge doesn't obey the profile. mkclean doesn't reliably get timestamps in ascending order. Appar ...en the second stage TF filter will need to simulate adding overlap between the two blocks that we split. I'm not optimizistic that we're goign to find any ...

-jm: let's clean up rietveld before the code party. if you know of reviews that aren't going to land, please close ...people may be aware, Andreas requested we consider rebranding. We met with the PR and branding people last week and went through a bunch of names. If you ...

- the path to crushing jpeg - Are we finally happy the transforms are working right? ...

This first video from Xiph.Org presents the technical foundations The program offers a brief history of digital media, a quick summary of the [[Wikipedia:Sampling_theorem|sampling theorem]], ...

...multiple facets of digital audio signals and how they ''really'' behave in the real world. ...t in case we can't trust those newfangled digital gizmos. You can download the source code for each demo and try it all for yourself! ...

The following games use [[Vorbis]], most frequently for their in-game music or * [http://www.amnesiagame.com/ Amnesia: The Dark Descent]: Uses Ogg Vorbis for all audio. ...

Most of the time, they will (optionally) be multiplexed with audio/video to carry subti the headers, one can't add them in the stream as they are sung, so another multiplexed stream ...

...'''[https://opus-codec.org main Opus website]''' or the pages included in the '''[[:Category:Opus|Opus category]]''' of this wiki. ...g's '''[http://celt-codec.org/ CELT]''' codec. It has been standardized by the '''[https://www.ietf.org/ Internet Engineering Task Force]''' (IETF) as ''' ...