# FxAnalyzer A protocol you implement in your plug-in to analyze frames that the plug-in is applied to. ``` protocol FxAnalyzer ``` ## Overview Implement this protocol if your plug-in needs to analyze some or all of the frames your plug-in is applied to before being able to render. ## Topics ### Analyzing Frames in Your Plug-in [`func desiredAnalysisTimeRange(UnsafeMutablePointer!, forInputWith: CMTimeRange) throws`](/documentation/professional_video_applications/FxAnalyzer/desiredAnalysisTimeRange(_:forInputWith:)) Requests the specified time range of frames you want to analyze. [`func setupAnalysis(for: CMTimeRange, frameDuration: CMTime) throws`](/documentation/professional_video_applications/FxAnalyzer/setupAnalysis(for:frameDuration:)) Completes any setup work before starting the frame analysis. [`func analyzeFrame(FxImageTile!, at: CMTime) throws`](/documentation/professional_video_applications/FxAnalyzer/analyzeFrame(_:at:)) Analyzes the next frame. [`func cleanupAnalysis() throws`](/documentation/professional_video_applications/FxAnalyzer/cleanupAnalysis()) Completes any necessary cleanup work after your plug-in’s frame analysis. ### Determining the Analysis State [`typealias FxAnalysisState`](/documentation/professional_video_applications/FxAnalysisState) The possible states of frame analysis, as reported by the host application. --- Copyright © 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)