---
title: packetDependencies
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudiocompressedbuffer/packetdependencies-3a6ln
---

# packetDependencies

The buffer’s array of packet dependencies.

## Declaration

```swift
var packetDependencies: [AudioStreamPacketDependencyDescription]? { get }
```

## Discussion

Discussion If the audio format doesn’t use packet dependencies, this value is nil.

## See Also

### Getting Audio Buffer Properties

- [byteCapacity](avfaudio/avaudiocompressedbuffer/bytecapacity.md)
- [byteLength](avfaudio/avaudiocompressedbuffer/bytelength.md)
- [data](avfaudio/avaudiocompressedbuffer/data.md)
- [maximumPacketSize](avfaudio/avaudiocompressedbuffer/maximumpacketsize.md)
- [packetCapacity](avfaudio/avaudiocompressedbuffer/packetcapacity.md)
- [packetCount](avfaudio/avaudiocompressedbuffer/packetcount.md)
- [AVAudioPacketCount](avfaudio/avaudiopacketcount.md)
- [packetDescriptions](avfaudio/avaudiocompressedbuffer/packetdescriptions.md)