Daala

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 Quickstart (Linux/MacOS)
• Daala Quickstart (Windows)
• Daala MinGW64 Environment

• Daala Weekly Meetings

• AreWeCompressedYet
• RD Curve Data Format

• Daala To-do List
• Daala Roadmap

• Intra-prediction within Daala

• Historical Daala wiki page

• Digital Primers - educational videos about audio/video technology

Project Communication

You are encouraged to join the

• #daala IRC channel at freenode.net
• Daala Email List

You are also welcome to attend the weekly progress meetings 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

• Daala Video Player
• Edge-Directed Interpolation - source code
• More Edge-Directed Interpolation
• Intra-prediction

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:
  • Chroma from Luma (CfL) - Slides - Paper
  • Perceptual Vector Quantisation (PVQ) - Slides - Paper
  • Overlapped Block Motion Compensation (OBMC) - Slides - Paper
• 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)