ISO/IEC 14496-2026 relaxes the requirement for hdlr. The logic isn't very clear, but 8.11.1 does have it - for a top level meta, hdlr is not always required.
However Table 2 still shows that hdlr is a mandatory box within meta, as denoted by the *.
While all I can really say is that it is not consistent, its likely that Table 2 didn't get updated, which could be an improvement for a future version.
ISO/IEC 14496-2026 relaxes the requirement for
hdlr. The logic isn't very clear, but 8.11.1 does have it - for a top levelmeta,hdlris not always required.However Table 2 still shows that
hdlris a mandatory box withinmeta, as denoted by the*.While all I can really say is that it is not consistent, its likely that Table 2 didn't get updated, which could be an improvement for a future version.