Each 64 x 64-pixel tile contains an array of 4,096coefficients. This coefficient array is losslessly entropy-encoded using theRLGR algorithm ([ARLGR]section 3). The three tile components are assembled into an encoded tile packet(section2.2.2.3.4.1).RLGR is an algorithm that adaptively switches between Run-Length encoding ofzeros and Golomb-Rice coding of nonzero coefficients. There are two variants ofthe RLGR algorithm that can be used, RLGR1 and RLGR3. The decoder endpointspecifies its preference through the capabilities negotiation (see theentropyBitsfield in section2.2.1.1.1.1.1).The pseudocode that describes the complete RLGR1/RLGR3 algorithm in detail isgiven in section3.1.8.1.7.3.