r value of pic_parameter_set_id, shall be available to the decoding process prior to its activation. When a picture parameter set RBSP (with a particular value of pic parameter_set_id) is not the active layer picture parameter set for a particular value of DQId less than DQIdMax and it is referred to by a coded slice NAL unit with the particular value of DQId (using that value of pic_parameter_set_id), it is activated for layer representations with the particular value of DQId. This picture parameter set RBSP is called the active layer picture parameter set RBSP for the particular value of DQId until it is deactivated when another picture parameter set RBSP becomes the active layer picture parameter set RBSP for the particular value of DQId or when decoding an access unit with DQIdMax less than or equal to the particular value of DQId. A picture parameter set RBSP, with that particular value of pic_parameter_set_id, shall be available to the decoding process prior to its activation. Any picture parameter set NAL unit containing the value of pic parameter_set_id for the active picture parameter set RBSP for a coded picture shall have the same content as that of the active picture parameter set RBSP for the coded picture unless it follows the last VCL NAL unit of the coded picture and precedes the first VCL NAL unit of another coded picture. Any picture parameter set NAL unit containing the value of `pic_parameter_set_id for the active layer picture parameter set RBSP for a particular value of DQId less than DQIdMax for a coded picture shall have the same content as that of the active layer picture parameter set RBSP for the particular value of DQId for the coded picture unless it follows the last VCL NAL unit of the coded picture and precedes the first VCL NAL unit of another coded picture. When a picture parameter set NAL unit with a particular value of _parameter_se is received, its content replaces the content of the previous picture parameter set NAL unit, in decoding order, with the same value of pic_paramete