o its activation. When a subset sequence parameter set RBSP (nal_unit_type is equal to 15) with a particular value of seq_parameter_set_id is not already the active view MVC sequence parameter set RBSP for a particular value of VOIdx less than VOIdxMax and it is referred to by an activating view buffering period SEI message (using that value of seq_parameter_set_id) that is included in an MVC scalable nesting SEI message and associated with the particular value of VOIdx, this subset sequence parameter set RBSP is activated for view components with the particular value of VOIdx. This subset sequence parameter set RBSP is called the active view MVC sequence parameter set RBSP for the particular value of VOIdx until it is deactivated when another MVC sequence parameter set RBSP becomes the active view MVC sequence parameter set RBSP for the particular value of VOIdx or when decoding an access unit with VOIdxMax less than or equal to the particular value of VOIdx. A subset sequence parameter set RBSP, with that particular value of seq_parameter_set_id, shall be available to the decoding process prior to its activation. An MVC sequence parameter set RBSP that includes a value of profile_idc not specified in Annex A or Annex H shall not be referred to by activation of a picture parameter set RBSP as the active picture parameter set RBSP or as active view picture parameter set RBSP (using that value of seq parameter_set_id) or referred to by a buffering period SEI message (using that value of seq_parameter_set_id). An MVC sequence parameter set RBSP including a value of profile_idc not specified in Annex A or Annex H is ignored in the decoding for profiles specified in Annex A or Annex H. It is a requirement of bitstream conformance that the following constraints are obeyed: For each particular value of VOIdx, all coded slice NAL units of a coded video sequence shall refer to the same value of seq_parameter_set_id (via the picture parameter set RBSP that is referred to by the value of pic_parameter_set_id). The value of