Combining Multiple Parallel Audio Tracks Using AVMutableComposition

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

Transform Not Working as Expected When Exporting AVMutableVideoComposition in iOS

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

AVAssetExportSession: Fixing Missing Audio Tracks When Exporting Compositions

Understanding Audio Data with AVFoundation: A Comprehensive Guide for Retrieving and Sending Audio Buffers

Understanding and Optimizing AVAssetExportSession: Workarounds for Estimated Output File Length Issues

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

Converting AAC/MP3 Files to PCM: A Step-by-Step Guide for Developers