Class

AVTimedMetadataGroup

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

Declaration

@interface AVTimedMetadataGroup : AVMetadataGroup

Overview

For example, AVTimedMetadataGroups are used to represent chapters, optionally containing metadata items for chapter titles and chapter images.

Topics

Initializing Timed Metadata Group Objects

- initWithItems:timeRange:

Creates a timed metadata group initialized with the given metadata items.

- initWithSampleBuffer:

Creates a timed metadata group with a sample buffer.

Configuring Timed Metadata Group Attributes

- copyFormatDescription

Creates a format description based on the receiver's items.

items

An array of metadata items in the timed metadata group.

timeRange

The time range for the timed metadata.

Relationships

Inherits From

See Also

Metadata Manipulation

Finding Metadata Values

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

JavaScript Object Notation (JSON) Chapter Format for HTTP Live Streaming

Understand the JSON chapter formatting required for HTTP Live Streaming.

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.

AVMetadataItemValueRequest

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

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.