The supported playback rates for a media item.
- iOS 7.1+
- macOS 10.12.1+
- tvOS 9.0+
- watchOS 5.0+
- Media Player
Contains an array of
NSNumber objects. Each object is of type
float and designates a supported playback rate. For example, a value of
2 would indicate the media item plays at double speed. Negative values are not supported.