AVTimedMetadataGroup Class Reference

Inherits from
Conforms to
Framework
/System/Library/Frameworks/AVFoundation.framework
Availability
Available in iOS 4.3 and later.
Declared in
AVTimedMetadataGroup.h

Overview

You use an AVTimedMetadataGroup object to represent a collection of metadata items.

AV Foundation also provides a mutable subclass, AVMutableTimedMetadataGroup.

Tasks

Creating and Analyzing a Metadata Group

Properties

items

The metadata items in the group. (read-only)

@property(readonly, copy) NSArray *items
Discussion

The array contains instances of AVMetadataItem.

Availability
  • Available in iOS 4.3 and later.
Declared In
AVTimedMetadataGroup.h

timeRange

The time range of the metadata. (read-only)

@property(readonly) CMTimeRange timeRange
Discussion

Availability
  • Available in iOS 4.3 and later.
Declared In
AVTimedMetadataGroup.h

Instance Methods

initWithItems:timeRange:

Returns a metadata group initialized with given metadata items.

- (id)initWithItems:(NSArray *)items timeRange:(CMTimeRange)timeRange
Parameters
items

An array of AVMetadataItem objects.

timeRange

The time range of the metadata contained in items.

Return Value

A metadata group initialized with items.

Discussion

Availability
  • Available in iOS 4.3 and later.
Declared In
AVTimedMetadataGroup.h