Video not fluid when 25fps video output format description criteria about ksplayer HOT 10 CLOSED

是在播放同一个视频的时候，会一直发生Video has been updated 吗？这个是不合理的

from ksplayer.

from ksplayer.

你是重载updateVideo(refreshRate: Float, formatDescription: CMFormatDescription?) 这个方法吗？

from ksplayer.

试着用AVDisplayCriteria(refreshRate: refreshRate, videoDynamicRange: videoDynamicRange.rawValue) 这给初始化方法，不要用 AVDisplayCriteria(refreshRate: refreshRate, formatDescription: formatDescription) 这个初始化方法

from ksplayer.

from ksplayer.

你试着这样重载。看行不行

    override func updateVideo(refreshRate: Float, formatDescription: CMFormatDescription?) {
        #if os(tvOS) || os(xrOS)
        guard let displayManager = UIApplication.shared.windows.first?.avDisplayManager,
              displayManager.isDisplayCriteriaMatchingEnabled,
              !displayManager.isDisplayModeSwitchInProgress
        else {
            return
        }
        if let formatDescription {
            displayManager.preferredDisplayCriteria = AVDisplayCriteria(refreshRate: refreshRate, videoDynamicRange: formatDescription.dynamicRange.rawValue)
        }
        #endif
    }

from ksplayer.

from ksplayer.

I tried even using

displayManager.preferredDisplayCriteria = AVDisplayCriteria(refreshRate: refreshRate, videoDynamicRange: formatDescription.dynamicRange.rawValue)

with the video output, with no success.

from ksplayer.

I have the impression that live refresh rate less than 50, works with:

AVDisplayCriteria(refreshRate: track.nominalFrameRate, videoDynamicRange: videoDynamicRange)

and that for 50 or more, works with the new tvOS17 API.

UPDATE:

nope, it's mixed behavior even in this case

from ksplayer.

So for 50 fps I use this:

displayManager.preferredDisplayCriteria = AVDisplayCriteria(refreshRate: videoOutputRefreshRate, formatDescription: videoOutputFormatDescription)

and it works.

For 25 fps most of the time doesn't work well with any approach.

from ksplayer.