---
title: ageOutDuration
framework: corevideo
role: symbol
role_heading: Instance Property
path: corevideo/cvmutablepixelbuffer/pool/configuration/ageoutduration
---

# ageOutDuration

Backing memory of released buffers is kept around for this duration before being freed (default is 1 second). If set to 0, the backing memory of released buffers is freed immediately.

## Declaration

```swift
var ageOutDuration: TimeInterval
```