---
title: "CMSampleBufferCreateForImageBufferWithMakeDataReadyHandler(_:_:_:_:_:_:_:)"
framework: coremedia
role: symbol
role_heading: Function
path: "coremedia/cmsamplebuffercreateforimagebufferwithmakedatareadyhandler(_:_:_:_:_:_:_:)"
---

# CMSampleBufferCreateForImageBufferWithMakeDataReadyHandler(_:_:_:_:_:_:_:)

Creates a sample buffer with an image buffer and a handler to make the data ready for use.

## Declaration

```swift
func CMSampleBufferCreateForImageBufferWithMakeDataReadyHandler(_ allocator: CFAllocator?, _ imageBuffer: CVImageBuffer, _ dataReady: Bool, _ formatDescription: CMVideoFormatDescription, _ sampleTiming: UnsafePointer<CMSampleTimingInfo>, _ sampleBufferOut: UnsafeMutablePointer<CMSampleBuffer?>, _ makeDataReadyHandler: CMSampleBufferMakeDataReadyHandler?) -> OSStatus
```

## Parameters

- `allocator`: The allocator to use to create a sample buffer object. Pass doc://com.apple.documentation/documentation/CoreFoundation/kCFAllocatorDefault to use the default allocator.
- `imageBuffer`: An image buffer that contains the media data. Must not be NULL.
- `dataReady`: A Boolean value that indicates whether the buffer already contains the data.
- `formatDescription`: A description of the media data’s format. Must not be NULL.
- `sampleTiming`: A doc://com.apple.coremedia/documentation/CoreMedia/CMSampleTimingInfo structure that provides the timing information for the media contained in imageBuffer.
- `sampleBufferOut`: On return, a new doc://com.apple.coremedia/documentation/CoreMedia/CMSampleBuffer object.
- `makeDataReadyHandler`: A block for the system to call to make the data ready for use. This argument can be NULL.

## Topics

### Handlers

- [CMSampleBufferMakeDataReadyHandler](coremedia/cmsamplebuffermakedatareadyhandler.md)

## See Also

### Creating Sample Buffers

- [CMSampleBufferCreateReady(allocator:dataBuffer:formatDescription:sampleCount:sampleTimingEntryCount:sampleTimingArray:sampleSizeEntryCount:sampleSizeArray:sampleBufferOut:)](coremedia/cmsamplebuffercreateready(allocator:databuffer:formatdescription:samplecount:sampletimingentrycount:sampletimingarray:samplesizeentrycount:samplesizearray:samplebufferout:).md)
- [CMSampleBufferCreateReadyWithImageBuffer(allocator:imageBuffer:formatDescription:sampleTiming:sampleBufferOut:)](coremedia/cmsamplebuffercreatereadywithimagebuffer(allocator:imagebuffer:formatdescription:sampletiming:samplebufferout:).md)
- [CMAudioSampleBufferCreateReadyWithPacketDescriptions(allocator:dataBuffer:formatDescription:sampleCount:presentationTimeStamp:packetDescriptions:sampleBufferOut:)](coremedia/cmaudiosamplebuffercreatereadywithpacketdescriptions(allocator:databuffer:formatdescription:samplecount:presentationtimestamp:packetdescriptions:samplebufferout:).md)
- [CMSampleBufferCreateWithMakeDataReadyHandler(_:_:_:_:_:_:_:_:_:_:_:)](coremedia/cmsamplebuffercreatewithmakedatareadyhandler(_:_:_:_:_:_:_:_:_:_:_:).md)
- [CMAudioSampleBufferCreateWithPacketDescriptionsAndMakeDataReadyHandler(_:_:_:_:_:_:_:_:_:)](coremedia/cmaudiosamplebuffercreatewithpacketdescriptionsandmakedatareadyhandler(_:_:_:_:_:_:_:_:_:).md)
- [CMSampleBufferCreate(allocator:dataBuffer:dataReady:makeDataReadyCallback:refcon:formatDescription:sampleCount:sampleTimingEntryCount:sampleTimingArray:sampleSizeEntryCount:sampleSizeArray:sampleBufferOut:)](coremedia/cmsamplebuffercreate(allocator:databuffer:dataready:makedatareadycallback:refcon:formatdescription:samplecount:sampletimingentrycount:sampletimingarray:samplesizeentrycount:samplesizearray:samplebufferout:).md)
- [CMSampleBufferCreateForImageBuffer(allocator:imageBuffer:dataReady:makeDataReadyCallback:refcon:formatDescription:sampleTiming:sampleBufferOut:)](coremedia/cmsamplebuffercreateforimagebuffer(allocator:imagebuffer:dataready:makedatareadycallback:refcon:formatdescription:sampletiming:samplebufferout:).md)
- [CMAudioSampleBufferCreateWithPacketDescriptions(allocator:dataBuffer:dataReady:makeDataReadyCallback:refcon:formatDescription:sampleCount:presentationTimeStamp:packetDescriptions:sampleBufferOut:)](coremedia/cmaudiosamplebuffercreatewithpacketdescriptions(allocator:databuffer:dataready:makedatareadycallback:refcon:formatdescription:samplecount:presentationtimestamp:packetdescriptions:samplebufferout:).md)