<!--
{
  "availability" : [
    "iOS: 9.0.0 - 27.0.0",
    "iPadOS: 9.0.0 - 27.0.0",
    "macCatalyst: 13.1.0 - 27.0.0",
    "macOS: 10.11.0 - 27.0.0",
    "tvOS: 9.0.0 - 27.0.0",
    "visionOS: 1.0.0 - 27.0.0"
  ],
  "documentType" : "symbol",
  "framework" : "AVFoundation",
  "identifier" : "/documentation/AVFoundation/AVAsynchronousCIImageFilteringRequest/sourceImage",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "AVFoundation"
    ],
    "preciseIdentifier" : "c:objc(cs)AVAsynchronousCIImageFilteringRequest(py)sourceImage"
  },
  "title" : "sourceImage"
}
-->

# sourceImage

The current video frame image.

```
var sourceImage: CIImage { get }
```

## Discussion

To apply a Core Image filter to this image, assign it to the `inputImage` parameter of a <doc://com.apple.documentation/documentation/CoreImage/CIFilter-swift.class> object, or use a <doc://com.apple.documentation/documentation/CoreImage/CIImage> convenience method such as the <doc://com.apple.documentation/documentation/CoreImage/CIImage/applyingFilter(_:parameters:)> method.

The pixel format for this image is the <doc://com.apple.documentation/documentation/CoreImage/CIFormat/BGRA8> format (of the <doc://com.apple.documentation/documentation/CoreVideo/kCVPixelFormatType_32BGRA> type). Unlike when processing video with the [`AVAsynchronousVideoCompositionRequest`](/documentation/AVFoundation/AVAsynchronousVideoCompositionRequest) class, the [`renderContext`](/documentation/AVFoundation/AVAsynchronousVideoCompositionRequest/renderContext) object’s [`renderTransform`](/documentation/AVFoundation/AVVideoCompositionRenderContext/renderTransform) property is already applied to this image.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)