FormatDescription DisplayCriteria: dynamic range problem.

[djokt]

On Tracy, when we activate "FormatDescription DisplayCriteria", Dolby Vision content is played as HDR10. (Tested on tvOS 17.1)

[Alanko5]

https://github.com/kingslay/KSPlayer/issues/633

[cdguy]

633

@Alanko5 So you mean that only using this code would solve the problem?

override func updateVideo(refreshRate: Float, isDovi: Bool, formatDescription: CMFormatDescription?) {

if os(tvOS) || os(xrOS)

    guard let displayManager = UIApplication.shared.windows.first?.avDisplayManager,
          displayManager.isDisplayCriteriaMatchingEnabled,
          !displayManager.isDisplayModeSwitchInProgress
    else {
        return
    }
    if let formatDescription {
        if KSOptions.displayCriteriaFormatDescriptionEnabled, #available(tvOS 17.0, *) {
            displayManager.preferredDisplayCriteria = AVDisplayCriteria(refreshRate: refreshRate, formatDescription: formatDescription)
        } else {
            let dynamicRange = isDovi ? .dolbyVision : formatDescription.dynamicRange
            displayManager.preferredDisplayCriteria = AVDisplayCriteria(refreshRate: refreshRate, videoDynamicRange: dynamicRange.rawValue)
        }
    }
    #endif
}

[Alanko5]

Yes you need add bridging header for objc file header. https://github.com/kingslay/KSPlayer/blob/119f75a6251ac0807b9a529e8ef335c1033ba4ab/Demo/SwiftUI/Shared/AVDisplayCriteriaKS.h