1. A method of encoding video data, the method comprising: dividing a transform block of video data into a plurality of transform coefficient sub-sets; determining, for each respective transform coefficient sub-set of the plurality of transform coefficient sub-sets, whether or not to generate a respective syntax element that indicates whether or not the respective transform coefficient sub-set includes any non-zero coefficients, wherein determining whether or not to generate the respective syntax element includes determining not to generate the respective syntax element for the respective transform coefficient sub-set where the respective transform coefficient sub-set includes a last non-zero coefficient of the transform block in a scan order; generating the respective syntax element for each of the transform coefficient sub-sets of the plurality of transform coefficient sub-sets for which it was determined to generate the syntax element.