---
title: kCMSampleAttachmentKey_AudioIndependentSampleDecoderRefreshCount
framework: coremedia
role: symbol
role_heading: Global Variable
path: coremedia/kcmsampleattachmentkey_audioindependentsampledecoderrefreshcount
---

# kCMSampleAttachmentKey_AudioIndependentSampleDecoderRefreshCount

An attachment that’s only present if the audio sample is an independent frame or immediate playout frame.

## Declaration

```swift
let kCMSampleAttachmentKey_AudioIndependentSampleDecoderRefreshCount: CFString
```

## See Also

### Constants

- [kCMAttachmentMode_ShouldNotPropagate](coremedia/kcmattachmentmode_shouldnotpropagate.md)
- [kCMAttachmentMode_ShouldPropagate](coremedia/kcmattachmentmode_shouldpropagate.md)
- [kCMSampleAttachmentKey_HEVCTemporalLevelInfo](coremedia/kcmsampleattachmentkey_hevctemporallevelinfo.md)
- [kCMSampleAttachmentKey_HEVCTemporalSubLayerAccess](coremedia/kcmsampleattachmentkey_hevctemporalsublayeraccess.md)
- [kCMSampleAttachmentKey_HEVCStepwiseTemporalSubLayerAccess](coremedia/kcmsampleattachmentkey_hevcstepwisetemporalsublayeraccess.md)
- [kCMSampleAttachmentKey_HEVCSyncSampleNALUnitType](coremedia/kcmsampleattachmentkey_hevcsyncsamplenalunittype.md)
- [kCMSampleAttachmentKey_CryptorSubsampleAuxiliaryData](coremedia/kcmsampleattachmentkey_cryptorsubsampleauxiliarydata.md)
- [kCMSampleBufferAttachmentKey_CameraIntrinsicMatrix](coremedia/kcmsamplebufferattachmentkey_cameraintrinsicmatrix.md)