TS EN 62261-2

TS EN 62261-2 is a standard focused on data decoding protocols in the television data domain using a key-length-value (KLV) encoding approach. In media and broadcasting systems, this structure is used to carry metadata in a machine-readable form, where the key identifies the item, the length defines its extent, and the value contains the actual data, helping different metadata elements travel together in a structured way.

The technical role of KLV-based encoding

KLV combines an identifier or key, the length of the item, and then the data itself. This makes it easier for a receiver or decoder to locate the boundaries of each piece of information, which is especially useful in television metadata streams that may carry mixed content. In general technical terms, such a scheme can support item types such as identifiers, timing information, content descriptors, production data, or signaling elements. From its title, this part of the standard is concerned with the decoding protocol side, meaning it addresses how KLV-encoded information is parsed and interpreted in a consistent way.

Why it matters in television metadata chains

In television and media systems, metadata is the supporting information that describes what the content is, how it should be handled, and how it is presented in context. Reliable decoding of that metadata is important for interoperability, content management, archiving, and broadcast workflows. KLV is a well-established technical model because it keeps data elements clearly separated, which helps reduce interpretation errors when different vendors’ equipment and software exchange complex streams. Although this TSE listing is withdrawn, it remains relevant as a technical reference for understanding how television metadata is structured and decoded.