---
title: permanentEmptyMedia
framework: coremedia
role: symbol
role_heading: Type Property
path: coremedia/cmsamplebufferattachmentkeydefinitions/permanentemptymedia
---

# permanentEmptyMedia

Marks the end of the sequence of samples.

## Declaration

```swift
static let permanentEmptyMedia: CVAttachmentKeyDefinitionWithDefault<CMSampleBufferAttachmentKeyDefinitions.ShouldPropagate, Bool>
```

## Discussion

Discussion Marker sample buffers with this attachment in addition to emptyMedia are used to indicate that no further samples are expected. The getter returns the default value of false if this attachment is not present.