---
title: AVVideoAverageBitRateKey
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avvideoaveragebitratekey
---

# AVVideoAverageBitRateKey

A key to access the average bit rate—as bits per second—used in compressing video.

## Declaration

```swift
let AVVideoAverageBitRateKey: String
```

## Discussion

Discussion The value for this key is an instance of NSNumber.

## See Also

### Compression

- [AVVideoCompressionPropertiesKey](avfoundation/avvideocompressionpropertieskey.md)
- [AVVideoDecompressionPropertiesKey](avfoundation/avvideodecompressionpropertieskey.md)
- [AVVideoQualityKey](avfoundation/avvideoqualitykey.md)
- [AVVideoMaxKeyFrameIntervalKey](avfoundation/avvideomaxkeyframeintervalkey.md)
- [AVVideoMaxKeyFrameIntervalDurationKey](avfoundation/avvideomaxkeyframeintervaldurationkey.md)
- [AVVideoAllowFrameReorderingKey](avfoundation/avvideoallowframereorderingkey.md)
- [AVVideoAppleProRAWBitDepthKey](avfoundation/avvideoappleprorawbitdepthkey.md)