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# AVVideoRange

Constants that describe a video variant’s dynamic range.

```
struct AVVideoRange
```

## Topics

### Video ranges

[`pq`](/documentation/AVFoundation/AVVideoRange/pq)

Indicates Perceptual Quantizer (PQ) high-dynamic-range video.

[`hlg`](/documentation/AVFoundation/AVVideoRange/hlg)

Indicates Hybrid-Log Gamma (HLG) high-dynamic-range video.

[`sdr`](/documentation/AVFoundation/AVVideoRange/sdr)

Indicates standard-dynamic-range (SDR) video.

### Initializers

[`init(rawValue:)`](/documentation/AVFoundation/AVVideoRange/init(rawValue:))

Creates a video range with a string.


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