How to Create a Movie File from an Animation Using AVAssetWriter and Core Animation.

Combining Multiple Parallel Audio Tracks Using AVMutableComposition

How to Control Video Orientation in AVMutableComposition: Best Practices and Example Code

Mastering AVCaptureStillImageOutput: The Key to Successful Image Capture in iOS

How iPhone Camera API Works in Low Light Conditions Without Support for Boost Mode

Transform Not Working as Expected When Exporting AVMutableVideoComposition in iOS

Resolving the Issue of AVAssetTrack totalSampleDataLength Returning 0: A Practical Guide for Efficient Memory Allocation and Key-Value Loading Protocols