  Daala is a new royalty-free video codec that attempts to compete with
state-of-the-art royalty-bearing codecs. To do so, it must achieve good
compression while avoiding all of their patented techniques. We use technology
that is as different as possible from traditional approaches to achieve this.
This paper describes the technology behind Daala and discusses where it fits in
the newly created AV1 codec from the Alliance for Open Media. We show that
Daala is approaching the performance level of more mature, state-of-the art
video codecs and can contribute to improving AV1.
