add key value pair as a Block Additional Mapping

ietf-wg-cellar · Dec 22, 2024 · 56ee057 · 56ee057
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diff --git a/block_additional_mappings/key_value.md b/block_additional_mappings/key_value.md
@@ -0,0 +1,17 @@
+## Key Value Pair
+
+### Key Value Pair Description
+
+The Block Additional Mapping for a `Key Value Pair` provides a generic method store data with a label in association with a Block. The label (referred to here as the `Key`) is stored within the `BlockAddIDExtraData` Element and the associate `Value` is stored within the corresponding BlockMore Element.
+
+### BlockAddIDType
+
+The BlockAddIDType value reserved for timecode is 107.
+
+### BlockAddIDName
+
+The BlockAddIDName value reserved for timecode is "Key Value pair".
+
+### BlockAddIDExtraData
+
+BlockAddIDExtraData stores the Key or a label for the value stored within the associated `BlockMore Element`.
diff --git a/codec_iana.md b/codec_iana.md
@@ -120,6 +120,7 @@ BlockAddIDType | BlockAddIDName            | Reference
 0 | Use BlockAddIDValue | This document, (#use-blockaddidvalue)
 1 | Opaque data | This document, (#opaque-data)
 4 | ITU T.35 metadata | This document, (#itu-t-35-metadata)
+107 | SMPTE ST 12-1 timecode | This document, (#key-value-pair)
 121 | SMPTE ST 12-1 timecode | This document, (#smpte-st-12-1-timecode)
 0x64766343 | Dolby Vision configuration dvcC | This document, (#dvcc)
 0x61766345 | Dolby Vision enhancement-layer AVC configuration | This document, (#avce)