Daala: Difference between revisions

Daala is the codename for a new video compression technology.

The effort is a collaboration between the Mozilla Foundation, the Xiph.Org Foundation and any other contributors that wish to help.

The goal of the project is to provide a video format that's free to implement, use and distribute, and a reference implementation with technical performance superior to H.265.

Please see the links below or the main page for more information.

Wiki Pages

Daala Weekly Meetings

Intra-prediction within Daala

Historical Daala wiki page

Digital Primers - educational videos about audio/video technology

Project Communication

You are encouraged to join the

You are also welcome to attend the weekly progress meetings by installing and using Mumble.
The address is mf4.xiph.org and the port is 64738 (you can run mumble://mf4.xiph.org:64738 within your browser as a shortcut).
The meetings occur on Tuesdays at 9AM Pacific Time (5PM UTC/GMT).

Websites

You can get a copy of the latest Daala Source Code from git.xiph.org or GitHub.

Xiph Code Reviews - there is a proposal on the review process here
Monty's Demo Pages - explanations on certain techniques used in Daala
Daala's issues - Issue/bug tracker on Github
Daala Project Status Board - what Daala bits the Mozilla people are working on
Daala Etherpads - you can request a free account to view these. You should receive access within a few days.
Daala T-shirts - if you'd like a free one, help out with the project and ask the Mozilla guys nicely for one :-)
Doom9 Forum discussion - generic forum thread regarding Daala

JavaScript Demos

Documents

Chroma from Luma (CfL)
Perceptual Vector Quantisation (PVQ)
Overlapped Block Motion Compensation (OBMC)
C API Documentation
Image Coding Thesis by Yushin Cho
Maximising Coding Efficiency Through Block Rotation and why it won't work well within Daala
JMSpeex' Journal of Dubious Theoretical Results - "take with an entire shaker-full of salt"

IETF Drafts

Time-Domain Lapped Transforms (TDLT) - documents the Lapped Transform pre- and post-filters used for block-edge decorrelation
Perceptual Vector Quantisation (PVQ) -
Coding Tools - documents Entropy Coding, Integer Transforms and other techniques
Internet Video Codec (NetVC) Requirements - explains what requirements and use cases Daala is trying to cater for
Internet Video Codec (NetVC) Testing and Quality Measurement
Example IPR Licence Terms

Presentations

2015-03-24 IETF 92 NetVC Meeting - Audio as Opus (29MB) or MP3 (119MB, action starts at 14:50) - Slides - Notes - Jabber Log
2015-02-11 SPIE talks:
2015-01-31 Daala Project Update at FOSDEM 2015 - summary - Slides
2015-01-14 Linux Conf 2015 - presentation summary - Slides

2014-09-16 Daala: Are We Compressed Yet?
2014-06-25 Sparsity Induced Prediction for Images and Video
2014-06-06 VP9 Summit (no video available) - Slides

2013-10-23 Opus and Daala: State of the Art Royalty-free Codecs - Slides
2013-09-30 Daala Coding Party 2 - Slides
2013-05-02 Tim Terriberry Presents Daala

2012-01-24 Introduction to Video Coding - Slides (no video for slides 1-50)

@@ Line 32: / Line 32: @@
 * [http://lists.xiph.org/mailman/listinfo/daala Daala Email List]
-You are also welcome to attend the [[Daala Weekly Meetings|weekly progress meetings]] using [http://wiki.mumble.info Mumble].<br />
+You are also welcome to attend the [[Daala Weekly Meetings|weekly progress meetings]] by installing and using [http://wiki.mumble.info Mumble].<br />
 The address is '''mf4.xiph.org''' and the port is '''64738''' (you can run '''mumble://mf4.xiph.org:64738''' within your browser as a shortcut).<br />
 The meetings occur on '''Tuesdays''' at '''[http://www.timeanddate.com/worldclock/fixedtime.html?msg=Daala+Weekly+Meeting&iso=20150428T09&p1=1241 9AM Pacific Time]''' (5PM UTC/GMT).