Type Alias

AVMetadataExtraAttributeKey

A value that defines extra attribute keys.

Declaration

typedef NSString *AVMetadataExtraAttributeKey;

Topics

Metadata Attribute Keys

AVMetadataExtraAttributeBaseURIKey

A key identifying the base URI against which other URIs related to the item are resolved.

AVMetadataExtraAttributeInfoKey

A key providing more information about the item.

AVMetadataExtraAttributeValueURIKey

A key identifying the resource to be used as the item's value.

See Also

Configuring Metadata Values

value

The value for the mutable metadata item.

locale

The locale for a mutable metadata item.

time

The timestamp for a mutable metadata item.

duration

The duration of a mutable metadata item.

extraAttributes

A dictionary containing the metadata item’s additional attributes.

dataType

The data type of the metadata item's value.

extendedLanguageTag

The IETF BCP 47 (RFC 4646) language identifier of the metadata item.

identifier

Indicates the identifier of the metadata item.

AVMetadataIdentifier

A value that defines the metadata identifiers for different file formats.

startDate

The start date of the timed metadata.