equal to 0 specifies that vui_mvc_num_units_in_tick[i], yui_mvc_time_scale[i], and vui_mvc_fixed_frame_rate_flag[ for the i-th sub-bitstream are not present in the MVC VUI parameters extension. The following syntax elements for the i-th sub-bitstream are specified using references to Annex E. For these syntax elements the same semantics and constraints as the ones specified in Annex E apply, as if these syntax elements vui_mvc_num_units_in_tick[i], vui_mvc_time_scale[i], vui_mvc_fixed_frame_rate_flag[i ui_mvc_nal_hrd_parameters_present_flag[ i , ui_mvc_vcl_hrd_parameters_present_flag[i] vui_mvc_low_delay_hrd_flag[i],and vui_mvc_pic_struct_present_flag[i) were present as the syntax elements num_units_in_tick, time_scale, fixed_frame_rate_flag, nal_hrd_parameters_present_flag, vcl_hrd_parameters_present_flag,low_delay_hrd_flag,and pic_struct_present_flag respectively, in the VUI parameters of the active MVC sequence parameter sets for the i-th sub-bitstream. vui_mvc_num_units_in_tick[ i specifies the value of num_units_in_tick, as specified in clause E.2.1, for the i-th sub- bitstream. vui_mvc_time_scale[i]specifies the value of time_scale, as specified in clause E.2.1, for the i-th sub-bitstream. vui_mvc_fixed_frame_rate_flag[i]specifies the value of fixed_frame_rate_flag,as specified in clause E.2.1, for the i- th sub-bitstream. vui_mvc_nal_hrd_parameters_present_flag[i]specifies the value of hal_hrd_parameters_present_flag,as specified in clause E.2.1, for sub-bitstream. When vui_mve_nal_hrd_parameters_present_flag[i]isequal to 1, NAL HRD parameters (clauses E.1.2 and E.2.2) for the i-th sub-bitstream immediately follow the flag. The variable VuiMvcNalHrdBpPresentFlag[ i ] is derived as follows: If any of the following is true, the value of VuiMvcNalHrdBpPresentFlag| i ] shall be set equal to 1: ui_mvc_nal_hrd_parameters_present_flag| i ] is present in the bitstream and is equal to 1, for the i-th sub-bitstream, the need for presence of buffering periods for NAL HRD operation to be present in the bitstream in bu