---
title: "init(for:prototypeInstruction:)"
framework: avfoundation
role: symbol
role_heading: Initializer
path: "avfoundation/avvideocomposition/configuration/init(for:prototypeinstruction:)"
---

# init(for:prototypeInstruction:)

Initializes a video composition configuration with the specified asset properties and optional prototype video composition instruction.

## Declaration

```swift
nonisolated(nonsending) init(for asset: AVAsset, prototypeInstruction: AVVideoCompositionInstruction? = nil) async throws
```

## Parameters

- `asset`: Asset to use with the video composition
- `prototypeInstruction`: A video composition instruction to use as a prototype.

## See Also

### Creating a configuration

- [init(animationTool:colorPrimaries:colorTransferFunction:colorYCbCrMatrix:customVideoCompositorClass:frameDuration:instructions:outputBufferDescription:perFrameHDRDisplayMetadataPolicy:renderScale:renderSize:sourceSampleDataTrackIDs:sourceTrackIDForFrameTiming:spatialVideoConfigurations:)](avfoundation/avvideocomposition/configuration/init(animationtool:colorprimaries:colortransferfunction:colorycbcrmatrix:customvideocompositorclass:frameduration:instructions:outputbufferdescription:perframehdrdisplaymetadatapolicy:renderscale:rendersize:sourcesampledatatrackids:sourcetr-2lwnx.md)
- [init(animationTool:colorPrimaries:colorTransferFunction:colorYCbCrMatrix:customVideoCompositorClass:frameDuration:instructions:outputBufferDescription:renderScale:renderSize:sourceSampleDataTrackIDs:sourceTrackIDForFrameTiming:spatialVideoConfigurations:)](avfoundation/avvideocomposition/configuration/init(animationtool:colorprimaries:colortransferfunction:colorycbcrmatrix:customvideocompositorclass:frameduration:instructions:outputbufferdescription:renderscale:rendersize:sourcesampledatatrackids:sourcetrackidforframetiming:spatialvideoc-j1vm.md)