Signaling of lossless coding in video coding

Abstract

A computing device performs a method of decoding video data by receiving a bitstream corresponding to video data encoding one or more pictures, wherein the one or more pictures are recursively partitioned into a plurality of groups at different partition levels; determining a first syntax element that corresponds to a first group of the plurality of groups; in accordance with a determination that the first syntax element has a first value: decoding the first group in a first mode and in accordance with a determination that the first syntax element has a second value: determining a respective second syntax element for each of one or more second groups within the first groups, wherein the one or more second groups are at a second partition level below the first partition level and decoding each of the one or more second groups in accordance with a value of the respective second syntax element.