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This specification defines the "keyids" Initialization Data format for use with the Encrypted Media Extensions [ENCRYPTED-MEDIA].
It defines a stream format-independent format for specifying a list of key ID(s). This type can be used by applications to directly provide information necessary to generate a license request without using media data or constructing container-specific formats.
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The format is a JSON object, encoded in UTF-8 as specified in the Encoding specification [encoding], containing the following member:
See Using base64url.
Applications may encode the JSON string using the TextEncoder interface [encoding]
This section is non-normative.
The following example will generate a license request for two key ID(s). (Line breaks are for readability only.)
{
"kids":
[
"LwVHf8JLtPrv2GUXFW2v_A",
"0DdtU9od-Bh5L3xbv0Xf_A"
],
}