---
title: mPacketDescriptionCapacity
framework: audiotoolbox
role: symbol
role_heading: Instance Property
path: audiotoolbox/audioqueuebuffer/mpacketdescriptioncapacity
---

# mPacketDescriptionCapacity

The maximum number of packet descriptions that can be stored in the mPacketDescriptions field.

## Declaration

```swift
var mPacketDescriptionCapacity: UInt32 { get }
```