---
title: CMSampleBuffer.PerSampleAttachmentsDictionary.Key
framework: coremedia
role: symbol
role_heading: Structure
path: coremedia/cmsamplebuffer/persampleattachmentsdictionary/key
---

# CMSampleBuffer.PerSampleAttachmentsDictionary.Key

## Declaration

```swift
struct Key
```

## Topics

### Keys

- [audioIndependentSampleDecoderRefreshCount](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/audioindependentsampledecoderrefreshcount.md)
- [dependsOnOthers](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/dependsonothers.md)
- [displayImmediately](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/displayimmediately.md)
- [doNotDisplay](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/donotdisplay.md)
- [earlierDisplayTimesAllowed](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/earlierdisplaytimesallowed.md)
- [hasRedundantCoding](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/hasredundantcoding.md)
- [hevcStepwiseTemporalSubLayerAccess](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/hevcstepwisetemporalsublayeraccess.md)
- [hevcSyncSampleNALUnitType](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/hevcsyncsamplenalunittype.md)
- [hevcTemporalLevelInfo](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/hevctemporallevelinfo.md)
- [hevcTemporalSubLayerAccess](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/hevctemporalsublayeraccess.md)
- [isDependedOnByOthers](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/isdependedonbyothers.md)
- [notSync](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/notsync.md)
- [partialSync](coremedia/cmsamplebuffer/persampleattachmentsdictionary/key/partialsync.md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)