60fps for IOStreamRecorder not working in version 1.9.6?

Describe the bug

Hi @shogo4405, I can't get 60fps working in file record with version 1.9.6 for some reason.

In my old code using version 1.4.6 I was able to get 60fps.

To Reproduce

            var recorder = IOStreamRecorder()
            stream.addObserver(recorder!)
            stream.frameRate = 60;
            recorder?.delegate = self;

            recorder?.settings = [
                AVMediaType.audio: [
                    AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
                    AVSampleRateKey: 0,
                    AVNumberOfChannelsKey: 0,
                    AVEncoderBitRateKey: 128000,
                ],
                AVMediaType.video: [
                    AVVideoCodecKey: AVVideoCodecType.hevc,
                    AVVideoHeightKey: 1920,
                    AVVideoWidthKey: 1080,
                    AVVideoCompressionPropertiesKey: [
                        AVVideoMaxKeyFrameIntervalDurationKey: 2,
                        AVVideoExpectedSourceFrameRateKey: 60,
                        AVVideoProfileLevelKey: kVTProfileLevel_HEVC_Main_AutoLevel,
                        AVVideoAverageBitRateKey: 10000 * 1000,
                    ] as [String : Any]
                ]
            ];

            recorder?.startRunning();

Expected behavior

Should get 60fps, however only getting 30fps.

Version

1.9.6

Smartphone info.

iPhone 12 Pro Max, iOS version 17.6.1

Additional context

Tracing around the code I think when I did stream.frameRate = 60 is where it is suppose to set it to 60 fps?

IOStream.swift
    public var frameRate: Float64 {
        get {
            return lockQueue.sync { self.mixer.videoIO.frameRate }
        }
        set {
            lockQueue.async {
                self.mixer.videoIO.frameRate = newValue
            }
        }
    }

IOMixer.swift
    static let defaultFrameRate: Float64 = 30

IOVideoUnit
    var frameRate = IOMixer.defaultFrameRate {
        didSet {
            guard #available(tvOS 17.0, *) else {
                return
            }
            for capture in captures.values {
                capture.setFrameRate(frameRate)
            }
        }
    }

IOVideoCaptureUnit
    func setFrameRate(_ frameRate: Float64) {
        guard let device else {
            return
        }
        do {
            try device.lockForConfiguration()
            if device.activeFormat.isFrameRateSupported(frameRate) {
                device.activeVideoMinFrameDuration = CMTime(value: 100, timescale: CMTimeScale(100 * frameRate))
                device.activeVideoMaxFrameDuration = CMTime(value: 100, timescale: CMTimeScale(100 * frameRate))
            } else {
                if let format = device.videoFormat(
                    width: device.activeFormat.formatDescription.dimensions.width,
                    height: device.activeFormat.formatDescription.dimensions.height,
                    frameRate: frameRate,
                    isMultiCamSupported: device.activeFormat.isMultiCamSupported
                ) {
                    device.activeFormat = format
                    device.activeVideoMinFrameDuration = CMTime(value: 100, timescale: CMTimeScale(100 * frameRate))
                    device.activeVideoMaxFrameDuration = CMTime(value: 100, timescale: CMTimeScale(100 * frameRate))
                }
            }
            device.unlockForConfiguration()
        } catch {
            logger.error("while locking device for fps:", error)
        }
    }

Screenshots

No response

Relevant log output