The empirical throughput, in bits per second, across all media downloaded.
- iOS 4.3+
- macOS 10.7+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 6.0+
The property corresponds to “c-observed-bitrate".
The value of this property is negative if unknown.
This property is not compatible with Key-value observing.
Getting Bit Rate Log Events
The bandwidth value that causes a switch, up or down, in the item's quality being played.
The throughput, in bits per second, required to play the stream, as advertised by the server.
The average throughput, in bits per second, required to play the stream, as advertised by the server.