---
title: "init(version:refcon:getDecodeTimeStamp:getPresentationTimeStamp:getDuration:isDataReady:compare:dataBecameReadyNotification:getSize:)"
framework: coremedia
role: symbol
role_heading: Initializer
path: "coremedia/cmbuffercallbacks/init(version:refcon:getdecodetimestamp:getpresentationtimestamp:getduration:isdataready:compare:databecamereadynotification:getsize:)"
---

# init(version:refcon:getDecodeTimeStamp:getPresentationTimeStamp:getDuration:isDataReady:compare:dataBecameReadyNotification:getSize:)

## Declaration

```swift
init(version: UInt32, refcon: UnsafeMutableRawPointer?, getDecodeTimeStamp: CMBufferGetTimeCallback?, getPresentationTimeStamp: CMBufferGetTimeCallback?, getDuration: CMBufferGetTimeCallback, isDataReady: CMBufferGetBooleanCallback?, compare: CMBufferCompareCallback?, dataBecameReadyNotification: Unmanaged<CFString>?, getSize: CMBufferGetSizeCallback?)
```