---
title: kAudioFilePropertyMarkerList
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaudiofilepropertymarkerlist
---

# kAudioFilePropertyMarkerList

A list of audio file markers defined in the file.

## Declaration

```swift
var kAudioFilePropertyMarkerList: AudioFilePropertyID { get }
```

## Discussion

Discussion A list of CFString objects representing audio file markers defined in the file. If you access this property, your app is responsible for releasing the CFString objects. Use the NumBytesToNumAudioFileMarkers and NumAudioFileMarkersToNumBytes functions to convert between audio file markers and the equivalent number of bytes.

## See Also

### Constants

- [kAudioFilePropertyFileFormat](audiotoolbox/kaudiofilepropertyfileformat.md)
- [kAudioFilePropertyDataFormat](audiotoolbox/kaudiofilepropertydataformat.md)
- [kAudioFilePropertyFormatList](audiotoolbox/kaudiofilepropertyformatlist.md)
- [kAudioFilePropertyIsOptimized](audiotoolbox/kaudiofilepropertyisoptimized.md)
- [kAudioFilePropertyMagicCookieData](audiotoolbox/kaudiofilepropertymagiccookiedata.md)
- [kAudioFilePropertyAudioDataByteCount](audiotoolbox/kaudiofilepropertyaudiodatabytecount.md)
- [kAudioFilePropertyAudioDataPacketCount](audiotoolbox/kaudiofilepropertyaudiodatapacketcount.md)
- [kAudioFilePropertyMaximumPacketSize](audiotoolbox/kaudiofilepropertymaximumpacketsize.md)
- [kAudioFilePropertyDataOffset](audiotoolbox/kaudiofilepropertydataoffset.md)
- [kAudioFilePropertyChannelLayout](audiotoolbox/kaudiofilepropertychannellayout.md)
- [kAudioFilePropertyDeferSizeUpdates](audiotoolbox/kaudiofilepropertydefersizeupdates.md)
- [kAudioFilePropertyDataFormatName](audiotoolbox/kaudiofilepropertydataformatname.md)
- [kAudioFilePropertyRegionList](audiotoolbox/kaudiofilepropertyregionlist.md)
- [kAudioFilePropertyPacketToFrame](audiotoolbox/kaudiofilepropertypackettoframe.md)
- [kAudioFilePropertyFrameToPacket](audiotoolbox/kaudiofilepropertyframetopacket.md)