---
title: sourceFrame
framework: videotoolbox
role: symbol
role_heading: Instance Property
path: videotoolbox/vtsuperresolutionscalerparameters/sourceframe
---

# sourceFrame

Current source frame, which must be non nil.

## Declaration

```swift
var sourceFrame: VTFrameProcessorFrame { get }
```

## See Also

### Inspecting the parameters

- [previousFrame](videotoolbox/vtsuperresolutionscalerparameters/previousframe.md)
- [previousOutputFrame](videotoolbox/vtsuperresolutionscalerparameters/previousoutputframe.md)
- [opticalFlow](videotoolbox/vtsuperresolutionscalerparameters/opticalflow.md)
- [submissionMode](videotoolbox/vtsuperresolutionscalerparameters/submissionmode-swift.property.md)
- [VTSuperResolutionScalerParameters.SubmissionMode](videotoolbox/vtsuperresolutionscalerparameters/submissionmode-swift.enum.md)