iOS - Fine tuned video compression in Swift 4
- iOS 9+
- No dependencies
- Single file, single function
- Compression in background thread
- Cancelable
- Configurable a/v bitrate, video resolution, audio sample rate and many other fine tuning operations
- Proper orientation correction for back/front camera
- Low performance compression during Background Execution, even when device is locked. (
Application.beginBackgroundTaskmust be called explicitly)
Copy this file to your project.
// Get source video let videoToCompress = //any valid URL pointing device storage // Declare destination path and remove anything exists in it let destinationPath = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("compressed.mp4") try? FileManager.default.removeItem(at: destinationPath) // Compress let cancelable = compressh264VideoInBackground( videoToCompress: videoToCompress, destinationPath: destinationPath, size: nil, // nil preserves original, //size: (width: 1280, height: 720) compressionTransform: .keepSame, compressionConfig: .defaultConfig, completionHandler: { [weak self] path in // use path }, errorHandler: { e in print("Error: ", e) }, cancelHandler: { print("Canceled.") } ) // To cancel compression, set cancel flag to true and wait for handler invoke cancelable.cancel = true