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
-
– initWithItems:timeRange: -
timeRangeproperty -
itemsproperty
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.htimeRange
The time range of the metadata. (read-only)
@property(readonly) CMTimeRange timeRange
Discussion
Availability
- Available in iOS 4.3 and later.
Declared In
AVTimedMetadataGroup.hInstance Methods
initWithItems:timeRange:
Returns a metadata group initialized with given metadata items.
- (id)initWithItems:(NSArray *)items timeRange:(CMTimeRange)timeRange
Parameters
- items
An array of
AVMetadataItemobjects.- 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© 2011 Apple Inc. All Rights Reserved. (Last updated: 2011-01-06)