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# CMSampleBuffer.PerSampleAttachmentsDictionary.Key

```
struct Key
```

## Topics

### Keys

[`static let audioIndependentSampleDecoderRefreshCount: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/audioIndependentSampleDecoderRefreshCount)

[`static let dependsOnOthers: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/dependsOnOthers)

[`static let displayImmediately: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/displayImmediately)

[`static let doNotDisplay: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/doNotDisplay)

[`static let earlierDisplayTimesAllowed: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/earlierDisplayTimesAllowed)

[`static let hasRedundantCoding: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/hasRedundantCoding)

[`static let hevcStepwiseTemporalSubLayerAccess: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/hevcStepwiseTemporalSubLayerAccess)

[`static let hevcSyncSampleNALUnitType: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/hevcSyncSampleNALUnitType)

[`static let hevcTemporalLevelInfo: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/hevcTemporalLevelInfo)

[`static let hevcTemporalSubLayerAccess: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/hevcTemporalSubLayerAccess)

[`static let isDependedOnByOthers: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/isDependedOnByOthers)

[`static let notSync: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/notSync)

[`static let partialSync: CMSampleBuffer.PerSampleAttachmentsDictionary.Key`](/documentation/CoreMedia/CMSampleBuffer/PerSampleAttachmentsDictionary/Key/partialSync)

## Relationships

### Conforms To

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

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

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

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

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

---

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