ST 400:2004 - SMPTE Standard - For Television — SMPTE Labels Structure

The SMPTE labels structure defined by this standard covers the use of SMPTE universal labels as individual items where the meaning of each label is conveyed by the content of the universal label alone. This standard does not define the use of SMPTE universal labels as keys for the coding of data items or data groups as defined in SMPTE 336M. — The associated SMPTE labels registry defines individual label values together with their definition and description. — The labels structure and labels registry shall be used together as a pair. Neither shall be used in isolation. Applications of individual registry entries may vary but, when used, shall conform to the definitions used in this standard and the associated labels registry (RP 224).