Memory leak issue virtual camera macOS, swift SwiftUI zoom caphost

Question

We are developing a application with virtual camera plugin for macOS by using swiftUI & swift. It has also C++ & objective C library. When we use that plugin via zoom it remain stable 2/3 hours & memory consumption of caphost around 140-300 MB. After that memory consumption grows rapidly & after 6/7 hours, it becomes 10+ GB. This scenario is mostly for "Catalina - 10.15.7, Processor: Intel Core i5 Dual-core, Memory: 8 GB, GPU:Intel Iris”. Is there any idea about this memory leaking issue?

func videoCapture(_ capture: IBYVideoProcessor, didCapture pixelBuffer: CVPixelBuffer?, with sampleTimingInfo: CMSampleTimingInfo) {

    guard var pixelBuffer = pixelBuffer, let queue = queue, CMSimpleQueueGetCount(queue) < CMSimpleQueueGetCapacity(queue) else {
        return
    }
    
    if IBYDataManager.shared.settingInformation.isDontShowAnyAnalysisInformation == false || IBYVideoProcessor.shared.isEnableMLProcess == true {
        
        var currentCGImage: CGImage?
        var currentCIImage : CIImage? = nil
     //   var pixelInfo : IBYPixelBufferModel?
        let pixelInfo : IBYPixelBufferModel? = IBYPixelBufferModel()
        
        let request = VNDetectFaceRectanglesRequest { [weak self] (request, error) in
            
            guard let observation = request.results?.first as? VNFaceObservation else {
                if IBYDataManager.shared.settingInformation.isTurnOnIBYCamera == false {
                    let artwork = IBYPixelbufferArtwork()
                    artwork.render(into: &pixelBuffer)
                }
                let bottombar = IBYPixelbufferBottomBar()
                bottombar.render(into: &pixelBuffer)
                self?.sendInformation(information: pixelBuffer, with: sampleTimingInfo)
                pixelInfo?.reset()
                return
            }
            
            let width = CVPixelBufferGetWidth(pixelBuffer)
            let height = CVPixelBufferGetHeight(pixelBuffer)
            let faceBound = VNImageRectForNormalizedRect(observation.boundingBox, width, height)
            pixelInfo?.face = faceBound
            
            let renderer = IBYObservationRenderer(faceRect: faceBound)
            renderer.render(into: &pixelBuffer)
            
            let bottombar = IBYPixelbufferBottomBar()
            bottombar.render(into: &pixelBuffer)
            
            self?.sendInformation(information: pixelBuffer, with: sampleTimingInfo)
            
            if pixelInfo?.isEnableMLProcess == true {
                let mlOperation = IBYAnalysisOperation()
                mlOperation.information = pixelInfo
                IBYVisionManager.shared.addItemForMLProcessing(operation: mlOperation)
            } else {
                pixelInfo?.reset()
            }
            
        }
        
        let isEnableMLProcess = IBYVideoProcessor.shared.isEnableMLProcess
        if isEnableMLProcess == true {
            IBYVideoProcessor.shared.isEnableMLProcess = false
        }
        
        VTCreateCGImageFromCVPixelBuffer(pixelBuffer, options: nil, imageOut: &currentCGImage)
        if let cgImage = currentCGImage {
            
            currentCIImage = CIImage(cgImage: cgImage)
      //      pixelInfo = IBYPixelBufferModel()
            pixelInfo?.cgImage = currentCGImage
            pixelInfo?.ciImage = currentCIImage
            pixelInfo?.isEnableMLProcess = isEnableMLProcess
          
            guard let currentCIImage = currentCIImage else { return  }
            
            do {
                let requestHandler = VNSequenceRequestHandler()
                try requestHandler.perform([request], on:currentCIImage)
            } catch let error as NSError {
               log("IBY Camera: \(error)")
                if IBYDataManager.shared.settingInformation.isTurnOnIBYCamera == false {
                    let artwork = IBYPixelbufferArtwork()
                    artwork.render(into: &pixelBuffer)
                }
                let bottombar = IBYPixelbufferBottomBar()
                bottombar.render(into: &pixelBuffer)
                self.sendInformation(information: pixelBuffer, with: sampleTimingInfo)
            }

        } else {
            if IBYDataManager.shared.settingInformation.isTurnOnIBYCamera == false {
                let artwork = IBYPixelbufferArtwork()
                artwork.render(into: &pixelBuffer)
            }
            let bottombar = IBYPixelbufferBottomBar()
            bottombar.render(into: &pixelBuffer)
            self.sendInformation(information: pixelBuffer, with: sampleTimingInfo)
        }

    } else {
        if IBYDataManager.shared.settingInformation.isTurnOnIBYCamera == false {
            let artwork = IBYPixelbufferArtwork()
            artwork.render(into: &pixelBuffer)
        }
        let bottombar = IBYPixelbufferBottomBar()
        bottombar.render(into: &pixelBuffer)
        self.sendInformation(information: pixelBuffer, with: sampleTimingInfo)
    }
    
}