back camera flickers and auto refocuses itself when recording in higher quality than medium (already removed location meta data)

[Keith Selvin]

[Keith Selvin]

It only happens on the first recording, then it won't happen for the rest of the capture session

[AbyssAlora]

Video stabilisation does this issue in my case on iPhone 6s. You can try remove these lines or put it elsewhere. I am not sure if it'll help you, but video recording works well for me after that.

open func startRecordingVideo() {
    if cameraOutputMode != .stillImage {
        let videoOutput = _getMovieOutput()
        // setup video mirroring
        
        for connection in movieOutput!.connections {
            for port in connection.inputPorts {
                
                if port.mediaType == AVMediaType.video {
                    let videoConnection = connection as AVCaptureConnection
                    if videoConnection.isVideoMirroringSupported {
                        videoConnection.isVideoMirrored = (cameraDevice == CameraDevice.front && shouldFlipFrontCameraImage)
                    }
                    
//                        This cause auto refocuses ... 
//                        if videoConnection.isVideoStabilizationSupported {
//                            videoConnection.preferredVideoStabilizationMode = self.videoStabilisationMode
//                        }
                }
            }
        }

        _updateIlluminationMode(flashMode)
        
        videoOutput.startRecording(to: _tempFilePath(), recordingDelegate: self)
    } else {
        _show(NSLocalizedString("Capture session output still image", comment:""), message: NSLocalizedString("I can only take pictures", comment:""))
    }
}

[Keith Selvin]

Thanks! That worked on my iPhone X.

I am also working with an iPad trying to shoot in 4k where the problem still persists after commenting out the video stabilization code. I think shooting in 4k resolution probably has something to do with it

[Tiago Franco]

Do you have some code to reproduce this? Thanks.

[Juan Arrillaga]

The issue is only noticeable when recording in high resolution. I commented the video stabilization lines but no luck, the issue still happening in my iPhone X.

[Ricardo Torrão]

Fixed in the latest version