Abstract:
Systems, methods, and devices for video coding that may receive a rectangular chroma block are disclosed. The rectangular chroma block may be divided into a first square sub-block and a second square sub-block. The systems, methods, and devices may reconstruct the first square sub-block and intra-predict the second square sub-block using reference samples from the reconstructed first square sub-block.
Abstract:
Systems and methods for determining information about an enhancement layer of digital video based on information included in a base layer of digital video are described. In one innovative aspect, an apparatus for coding digital video is provided. The apparatus includes a memory for storing a base layer of digital video information and an enhancement layer of digital video information. The apparatus determines a syntax element value for a portion of the enhancement layer based on a syntax element value for a corresponding portion of the base layer. Decoding devices and methods as well as corresponding encoding devices and methods are described.
Abstract:
In one example, a device includes a video coder configured to determine a context for entropy coding a bin of a value indicative of a last significant coefficient of a block of video data using a function of an index of the bin, and code the bin using the determined context. The video coder may encode or decode the bin using context-adaptive binary arithmetic coding (CABAC). The function may also depend on a size of the block. In this manner, a table indicating context indexes for the contexts need not be stored by the device.