Group flag in transform coefficient coding for video coding

摘要

A method of decoding data indicative of a subset of transform coefficients is described. The coefficients are indicative of a block of video data. The method may include determining that no transform coefficient in the subset of transform coefficients has an absolute value greater than one, and, based on the determining, skipping one or more decoding passes on the subset of transform coefficients, the decoding passes relating to decoding level information associated with the subset of transform coefficients.

主权项

1. A method of decoding data indicative of a subset of transform coefficients, the coefficients being indicative of residual data for a block of video data, the method comprising:
decoding one or more significance flags in the subset of transform coefficients; determining that no transform coefficient in the subset of transform coefficients has an absolute value greater than one based on a first group flag, wherein the first group flag indicates whether or not the subset includes at least one transform coefficient with an absolute value greater than one in the case that the one or more significance flags indicate that the subset of transform coefficients includes at least one particular transform coefficient having an absolute value greater than zero; and based on the determining, skipping one or more decoding passes on the subset of transform coefficients, the decoding passes relating to decoding level information associated with the subset of transform coefficients.