meter set is the active SVC sequence parameter set. constraint_set0_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), constraint_set0_flag equal to 1 specifies that all of the following conditions are obeyed: the coded video sequence obeys all constraints specified in clause G.10.1.1, the output of the decoding process as specified in clause G.8 is identical to the output of the decoding process that is obtained when profile_idc would be set equal to 83. constraint _set0_flag equal to 0 specifies that the coded video sequence may or may not obey all constraints specified in clause G.10.1.1 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 83. NOTE 1 - 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_set1_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), constraint_set1_flag equal to 1 specifies that all of the following conditions are obeyed: the coded video sequence obeys all constraints specified in clause G.10.1.2, the output of the decoding process as specifi