AVAssetDownload long to finish | Apple Developer Forums

Hi,

I use AVAssetDownloadURLSession to download m3u8 playlists. I'm encountering a strange behavior. I don't know why.

I check the progress of the download with :

urlSession(_ session: URLSession, assetDownloadTask: AVAssetDownloadTask, didLoad timeRange: CMTimeRange, totalTimeRangesLoaded loadedTimeRanges: [NSValue], timeRangeExpectedToLoad: CMTimeRange)

I compute the progress with the same code that Apple sample :

var percentComplete = 0.0
for value in loadedTimeRanges {
     let loadedTimeRange = value.timeRangeValue
     percentComplete += loadedTimeRange.duration.seconds / timeRangeExpectedToLoad.duration.seconds
}
percentComplete *= 100

but when the progress is equal 100, only for some media

urlSession(_ session: URLSession, assetDownloadTask: AVAssetDownloadTask, didFinishDownloadingTo location: URL)

is not called immediatly (60-100 seconds after 100 percent) but I don't understand why.