Xiph.org: Introducing Daala, part 2

Xiph.org has published part 2 of its introduction to the new Daala video codec. This edition covers frequency domain intra-prediction. "Daala predicts frequency coefficients in the frequency domain, rather than pixels in the spatial domain. Frequency coefficients are not shared between blocks, allowing us to keep the classic definition of 'neighboring' as well as avoiding any circular decoding dependencies. In addition, Daala's frequency-domain prediction draws from a larger input data set consisting of up to four complete blocks. In theory, the additional degrees of freedom could give us a more efficient predictor."