Setting mirroringMode

[cybercent]

Hi,

Setting the mirroringMode expects a session to already exist but crashes the app if the session has already started.

If I set sharedInstance.mirroringMode = .on before calling nextLevel.start() the mirroring mode is not taken into account.
https://github.com/NextLevel/NextLevel/blob/master/Sources/NextLevel.swift#L1758

If I set sharedInstance.mirroringMode = .on in the nextLevelSessionDidStart delegate the app crashes.

[cybercent]

Meanwhile, if someone encounters the same issue, an alternate solution to obtain the video mirrored is to change the video configuration transform.

sharedInstance.videoConfiguration.transform = CGAffineTransform(scaleX: -1, y: 1)

[piemonte]

hey @Slash7 thanks, much appreciated. i'll try fix this in my next free opportunity.

[piemonte]

#68

hey @Slash7 this will fix one crash, may not fix the other you mention

[cybercent]

👍🏻

[otymartin]

sharedInstance.videoConfiguration.transform = CGAffineTransform(scaleX: -1, y: 1)

this was the only thing that worked. setting mirroringMode has no effect.

[patthehuman]

How do you actually produce an instagram or snapchat style front facing session without flipping the users face?

[otymartin]

@patthehuman
My default device is .front

I set NextLevel.shared.mirroringMode = .on in my viewDidLoad

And do this in my delegate

public func nextLevelDevicePositionDidChange(_ nextLevel: NextLevel) {
        switch nextLevel.devicePosition {
        case .back:
           NextLevel.shared.videoConfiguration.transform = CGAffineTransform(scaleX: 1, y: 1)
        case .front:
            NextLevel.shared.videoConfiguration.transform = CGAffineTransform(scaleX: -1, y: 1)
        default:
            break
        }
    }

Works well.

[patthehuman]

@otymartin

thank you. I have implemented that. I am getting this error:

Method 'nextLevel(:didUpdateVideoZoomFactor:)' has different argument labels from those required by protocol 'NextLevelDeviceDelegate' ('nextLevel(:didChangeLensPosition:)')

Are you?

[otymartin]

@patthehuman You probably just wrote the delegate method wrong or have minor syntax error.. I would just copy these.

/// Video Zoom
  public func nextLevel(_ nextLevel: NextLevel, didUpdateVideoZoomFactor videoZoomFactor: Float) {}

  public func nextLevel(_ nextLevel: NextLevel, didChangeLensPosition lensPosition: Float) {}

[patthehuman]

This is not working for me actually

[otymartin]

@patthehuman

Can you show your code

[piv199]

videoConfiguration.transform = CGAffineTransform(x: -1, y: 1)

for me this produces videos with 180 degrees rotation (though they are opened normally in AVPlayer, QuickTime)