Type Alias

AVMetadataIdentifier

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

Declaration

typedef NSString *AVMetadataIdentifier;

Topics

iTunes Metadata Identifiers

ID3 Metadata Identifiers

QuickTime Metadata Identifiers

QuickTime User Metadata Identifiers

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.

AVMetadataExtraAttributeKey

A value that defines extra attribute keys.

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.

startDate

The start date of the timed metadata.