MediaKeySystemConfiguration

https://www.w3.org/TR/encrypted-media/#mediakeysystemconfiguration-dictionary

Properties

optional label: string

An optional label that is preserved in the MediaKeySystemConfiguration returned from the getConfiguration() method of MediaKeySystemAccess.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemconfiguration-label.

optional initDataTypes: string[]

A list of supported Initialization Data Type names.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemconfiguration-initdatatypes.

optional audioCapabilities: MediaKeySystemMediaCapability[]

A list of supported audio type and capability pairs.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemconfiguration-audiocapabilities.

optional videoCapabilities: MediaKeySystemMediaCapability[]

A list of supported video type and capability pairs.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemconfiguration-videocapabilities.

optional distinctiveIdentifier: MediaKeysRequirement

Defaults to "optional". Whether use of a Distinctive Identifier(s) is required.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemconfiguration-distinctiveidentifier.

optional persistentState: MediaKeysRequirement

Whether the ability to persist state is required.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemconfiguration-persistentstate.

optional sessionTypes: MediaKeySessionType[]

A list of MediaKeySessionTypes that must be supported

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemconfiguration-sessiontypes.

Last updated: Jul 22, 2026