---
title: AVVideoDecompressionPropertiesKey
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avvideodecompressionpropertieskey
---

# AVVideoDecompressionPropertiesKey

The key that indicates the video decompression properties to pass to the video decoder.

## Declaration

```swift
let AVVideoDecompressionPropertiesKey: String
```

## Discussion

Discussion The value for this key is specified as an NSDictionary object containing other keys to pass to the video decoder.

## See Also

### Compression

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