24MP Capture for iPhone 15 and iPhone 15 Pro Models

Same here, wondering to know how to set 24MP on iPhone 15 Pro, supportedMaxPhotoDimensions only gives [(width: 4032, height: 3024), (width: 8064, height: 6048)] which is 12MP and 48MP.

I guess, we just need to obtain the larger size (48MP) and then resize it.

   var resultImage: UIImage?
 
   func photoOutput(
        _ output: AVCapturePhotoOutput,
        didFinishProcessingPhoto photo: AVCapturePhoto,
        error: Error?) {            
            guard error == nil, let cgImage = photo.cgImageRepresentation() else { return }
            guard let cgImage = photo.cgImageRepresentation(),

            /// check if the original image has 8064x6048 && do we need to resize it to 24MP
            let cgImageScaled = resizeCGImage(cgImage, to: .init(width: 5712 , height: 4284)) else { return }
            let resultImage = UIImage(cgImage: cgImageScaled)
    }

    func photoOutput(
        _ output: AVCapturePhotoOutput,
        didFinishCaptureFor resolvedSettings: AVCaptureResolvedPhotoSettings,
        error: Error?) {
            guard error == nil, let resultImage = resultImage else { return }

            /// saving resultImage 
    }

    func resizeCGImage(_ image: CGImage, to size: CGSize) -> CGImage? {
        let bytesPerPixel = image.bitsPerPixel / image.bitsPerComponent
        let bytesPerRow = Int(size.width) * bytesPerPixel

        guard let colorSpace = image.colorSpace,
              let ctx = CGContext(
                data: nil,
                width: Int(size.width),
                height: Int(size.height),
                bitsPerComponent: image.bitsPerComponent,
                bytesPerRow: bytesPerRow,
                space: colorSpace,
                bitmapInfo: image.alphaInfo.rawValue
              ) else { return nil }
        ctx.interpolationQuality = .default
        ctx.draw(image, in: .init(origin: .zero, size: size))
        return ctx.makeImage()
    }