ent_flag[ ] equal to 0 specifies that the bitrate information for the current operation point is not present in the SEI message. frm_rate_info_present_flag[ equal to 1 specifies that the frame rate information for the current operation point is present in the SEI message. frm_rate_info_present_flag[i i] equal to 0 specifies that the frame rate information for the current operation point is not present in the SEI message. view_dependency_info_present_flag[i] equal to 1 specifies that information on the views the target output view of the current operation point directly depends on is present in the SEI message. View A is directly dependent on view point B if there is at least one view component of view A using a view component of view B for inter-view prediction reference. view_dependency_info_present_flag[i equal to 0 specifies that view_dependency_info_src_op_id[i] is present in the SEI message. When not present, view_dependency_info_present_flag[i shall be inferred to be equal to 0. Rec. ITU-T H.264 (01/2012) NOTE 2 - The inter-view dependency relationship signalled in sequence parameter set MVC extension is an upper bound, in the sense that whenever view A may depend on view B at any access unit, it is specified as view A depends on view B. Therefore, the dependency relationship is indicated by sequence parameter set MVC extension when view A depends on view B at only one of all access units in the coded video sequence, or even when view A actually does not depend on view B at any access unit but when generating the sequence parameter set MVC extension the encoder thought view A might depend on view B. The dependency relationship signalled here can be more refined. For example, when view A depends on view B at access units with temporal id equal to 0 but not at other access units, this can be indicated through the view dependency information signalled in this SEI message for operation points with view A as the target output view and with different maximum values of temporal_id. parameter_sets_info_present_flag