Camera Capture Diagnostics

About

This diagnostic skill provides a systematic framework for troubleshooting AVFoundation camera capture implementations on iOS, iPadOS, and macOS. It helps developers identify the root cause of common issues—such as main-thread blocking, session lifecycle failures, and permission conflicts—which account for the majority of camera-related bugs. With built-in support for modern iOS 17+ APIs like RotationCoordinator and comprehensive decision trees for symptoms like black previews or slow capture, it enables rapid debugging and implementation of battle-tested patterns for media-heavy xOS applications.

Key Features

• Systematic threading and session state verification
• Interruption handling patterns for phone calls and iPad Split View
• Implementation guidance for the iOS 17+ RotationCoordinator API
• Thermal pressure and permission state monitoring
• Automated diagnostic patterns for common symptoms like black previews and UI freezes
• 233 GitHub stars

Use Cases

• Optimizing slow capture performance by adjusting photo quality prioritization settings
• Fixing a frozen camera preview during app launch or state transitions
• Correcting 90-degree rotation errors in both real-time preview and final photo output