ed in clause G.8 is identical to the output of the decoding process that is obtained when profile_idc would be set equal to 86. constraint_set1_flag equal to 0 specifies that the coded video sequence may or may not obey all constraints specified in clause G.10.1.2 and that the output of the decoding process as specified in clause G.8 may or may not be identical to the output of the decoding process that is obtained when profile_idc would be set equal to 86. NOTE 2 - The output of the decoding process may be different, if the array sTCoeff contains non-zero scaled luma transform coefficient values for a transform block of a macroblock that is coded in an Inter macroblock prediction mode, but all reconstructed luma residual samples of the array rSL that are associated with the transform blocks are equal to 0. In this case, the boundary filter strength that is derived as specified in clause G.8.7.4.3 can depend on the value of profile_idc. constraint_set2_fla is specified as follows: If the sequence parameter set data syntax structure is included in a sequence parameter set RBSP, the semantics specified in clause 7.4.2.1.1 apply. Otherwise (the sequence parameter set data syntax structure is included in a subset sequence parameter set RBSP), the value of 1 for constraint_set2_flag is reserved for future use by ITU-T | ISO/IEC. constraint_set2_flag shall be equal to 0 for coded video sequences with profile_ic equal to 83 and 86 in bitstreams conforming to this Recommendation | International Standard. Decoders shall ignore the value of constraint_set2_flag when profile_ido is equal to 83 or 86. constraint_set3_flag is specified as follows: If the sequence parameter set data syntax structure is included in a sequence parameter set RBSP, the semantics specified in clause 7.4.2.1.1 apply. Otherwise (the sequence parameter set data syntax structure is included in a subset sequence parameter set RBSP), the following applies: If profile_idc is equal to 86, constraint_set3_flag equal to 1 specifies that the coded video seque