Class

AVMetadataItemValueRequest

An object used to respond to a request to load the value of a metadata item.

Declaration

@interface AVMetadataItemValueRequest : NSObject

Topics

Handling the Response

- respondWithValue:

Returns the metadata item’s value.

- respondWithError:

Returns the encountered error.

metadataItem

The metadata item for which a value is being requested.

Relationships

Inherits From

See Also

Metadata Manipulation

Finding Metadata Values

Retrieve and filter all of the metadata associated with an asset.

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AVMetadataItem

A metadata item associated with an audiovisual asset or one of its tracks.

AVMetadataGroup

A collection of metadata items associated with a timeline segment.

AVMetadataItemFilter

An object that filters selected information from a metadata item.

AVMutableMetadataItem

A mutable metadata item associated with an audiovisual asset or with one of its tracks.

AVDateRangeMetadataGroup

A collection of metadata items that are valid for use within a specific date range.

AVMutableDateRangeMetadataGroup

A mutable collection of metadata items that are valid for use within a specific range of dates.

AVTimedMetadataGroup

A collection of metadata items that are valid for use during a specific time range.

AVMutableTimedMetadataGroup

A mutable collection of metadata items that are valid for use during a specific time range.

AVMetadataFormat

A value that defines a metadata format.