e High 4:4:4 Intra profile shall be obeyed. Picture parameter sets shall have entropy_coding_mode_flag equal to 0. The level constraints specified for the CAVLC 4:4:4 Intra profile in clause A.3 shall be fulfilled. Conformance of a bitstream to the CAVLC 4:4:4 Intra profile is indicated by profile_idc being equal to 44. Decoders conforming to the CAVLC 4:4:4 Intra profile at a specific level shall be capable of decoding all bitstreams in which all of the following conditions are true: profile_ido is equal to 44, level idc represents a level less than or equal to the specified level. The operation of the deblocking filter process specified in clause 8.7 is not required for decoder conformance to the CAVLC 4:4:4 Intra profile. NOTE - The deblocking filter process specified in clause 8.7 or some similar post-processing filter should be performed, although this is not a requirement for decoder conformance to the High 4:4:4 Intra and CAVLC 4:4:4 Intra profiles. The syntax elements sent by an encoder for control of the deblocking filter process specified in clause 8.7 are considered only as advisory information for decoders conformance to the High 4:4:4 Intra and CAVLC 4:4:4 Intra profiles. However, the application of the deblocking filter process specified in clause 8.7 is required for decoder conformance to the High 4:4:4 Predictive profile when decoding bitstreams that conform to the High 4:4:4 Intra and CAVLC 4:4:4 Intra profiles. Levels The following is specified for expressing the constraints in this annex. Let access unit n be the n-th access unit in decoding order with the first access unit being access unit 0. Let picture n be the primary coded picture or the corresponding decoded picture of access unit n. Let the variable fR be derived as follows: If picture n is a frame, fR is set equal to 1 172. Otherwise (picture n is a field), fR is set equal to 1 (172* A.3.1 Level limits common to the Baseline, Constrained Baseline, Main, and Extended profiles Bitstreams conforming to the Baseline, Constrained Baseline, 