---
title: AVVideoMaxKeyFrameIntervalDurationKey
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avvideomaxkeyframeintervaldurationkey
---

# AVVideoMaxKeyFrameIntervalDurationKey

A key to access the maximum interval duration between keyframes.

## Declaration

```swift
let AVVideoMaxKeyFrameIntervalDurationKey: String
```

## See Also

### Compression

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