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# CMFormatDescription.Extensions.Value.TransferFunction

```
struct TransferFunction
```

## Topics

### Transfer Functions

[`static let itu_R_2020: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/itu_R_2020)

[`static let itu_R_2100_HLG: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/itu_R_2100_HLG)

[`static let itu_R_709_2: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/itu_R_709_2)

[`static let linear: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/linear)

[`static let sRGB: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/sRGB)

[`static let smpte_240M_1995: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/smpte_240M_1995)

[`static let smpte_ST_2084_PQ: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/smpte_ST_2084_PQ)

[`static let smpte_ST_428_1: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/smpte_ST_428_1)

[`static let useGamma: CMFormatDescription.Extensions.Value.TransferFunction`](/documentation/CoreMedia/CMFormatDescription/Extensions-swift.struct/Value/TransferFunction/useGamma)

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Equatable`](/documentation/Swift/Equatable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

---

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