---
title: AudioCodecPrimeInfo
framework: audiotoolbox
role: symbol
role_heading: Structure
path: audiotoolbox/audiocodecprimeinfo
---

# AudioCodecPrimeInfo

A structure specifying the number of leading and trailing empty frames to be inserted.

## Declaration

```swift
struct AudioCodecPrimeInfo
```

## Topics

### Initializers

- [init()](audiotoolbox/audiocodecprimeinfo/init().md)
- [init(leadingFrames:trailingFrames:)](audiotoolbox/audiocodecprimeinfo/init(leadingframes:trailingframes:).md)

### Instance Properties

- [leadingFrames](audiotoolbox/audiocodecprimeinfo/leadingframes.md)
- [trailingFrames](audiotoolbox/audiocodecprimeinfo/trailingframes.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Sendable](swift/sendable.md)

## See Also

### Codec Types

- [AudioCodecMagicCookieInfo](audiotoolbox/audiocodecmagiccookieinfo.md)
- [AudioCodec](audiotoolbox/audiocodec.md)
- [AudioCodecAppendInputBufferListProc](audiotoolbox/audiocodecappendinputbufferlistproc.md)
- [AudioCodecAppendInputDataProc](audiotoolbox/audiocodecappendinputdataproc.md)
- [AudioCodecGetPropertyInfoProc](audiotoolbox/audiocodecgetpropertyinfoproc.md)
- [AudioCodecGetPropertyProc](audiotoolbox/audiocodecgetpropertyproc.md)
- [AudioCodecInitializeProc](audiotoolbox/audiocodecinitializeproc.md)
- [AudioCodecProduceOutputBufferListProc](audiotoolbox/audiocodecproduceoutputbufferlistproc.md)
- [AudioCodecProduceOutputPacketsProc](audiotoolbox/audiocodecproduceoutputpacketsproc.md)
- [AudioCodecPropertyID](audiotoolbox/audiocodecpropertyid.md)
- [AudioCodecResetProc](audiotoolbox/audiocodecresetproc.md)
- [AudioCodecSetPropertyProc](audiotoolbox/audiocodecsetpropertyproc.md)
- [AudioCodecUninitializeProc](audiotoolbox/audiocodecuninitializeproc.md)