在IOS中为AI设置摄像头的分辨率

import AVFoundation

// 获取所有可用的摄像头设备
let devices = AVCaptureDevice.devices(for: .video)

// 选择前置或后置摄像头
var cameraDevice: AVCaptureDevice?
for device in devices {
    if device.position == .back {
        cameraDevice = device
        break
    }
}

// 如果需要前置摄像头，将position属性改为.front

// 创建AVCaptureSession对象
let captureSession = AVCaptureSession()

// 设置输入设备
if let cameraDevice = cameraDevice {
    let cameraInput = try AVCaptureDeviceInput(device: cameraDevice)
    if captureSession.canAddInput(cameraInput) {
        captureSession.addInput(cameraInput)
    }
}

// 设置输出设备
let videoOutput = AVCaptureVideoDataOutput()
if captureSession.canAddOutput(videoOutput) {
    captureSession.addOutput(videoOutput)
}

// 设置分辨率
captureSession.sessionPreset = .hd1280x720

// 启动会话
captureSession.startRunning()