Since iOS 10, Apple has provided the support for downloading HLS (m3u8) video for offline viewing.
My question is: Is it necessary that we can only download HLS when it is being played ? Or we can just download when user press download button and show progress.
Does anyone has implemented this in Objective C version? Actually my previous App is made in Objective C. Now I want to add support for downloading HLS rather than MP4 (previously I was downloading MP4 for offline view).
I am really desperate to this. Please share thoughts or any code if implemented.
I used the apple code guid to download HLS content with the following code:
var configuration: URLSessionConfiguration?
var downloadSession: AVAssetDownloadURLSession?
var downloadIdentifier = "\(Bundle.main.bundleIdentifier!).background"
func setupAssetDownload(videoUrl: String) {
// Create new background session configuration.
configuration = URLSessionConfiguration.background(withIdentifier: downloadIdentifier)
// Create a new AVAssetDownloadURLSession with background configuration, delegate, and queue
downloadSession = AVAssetDownloadURLSession(configuration: configuration!,
assetDownloadDelegate: self,
delegateQueue: OperationQueue.main)
if let url = URL(string: videoUrl){
let asset = AVURLAsset(url: url)
// Create new AVAssetDownloadTask for the desired asset
let downloadTask = downloadSession?.makeAssetDownloadTask(asset: asset,
assetTitle: "Some Title",
assetArtworkData: nil,
options: nil)
// Start task and begin download
downloadTask?.resume()
}
}//end method
func urlSession(_ session: URLSession, assetDownloadTask: AVAssetDownloadTask, didFinishDownloadingTo location: URL) {
// Do not move the asset from the download location
UserDefaults.standard.set(location.relativePath, forKey: "testVideoPath")
}
if you don't understand what's going on, read up about it here: https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MediaPlaybackGuide/Contents/Resources/en.lproj/HTTPLiveStreaming/HTTPLiveStreaming.html
now you can use the stored HSL content to play the video in AVPlayer with the following code:
//get the saved link from the user defaults
let savedLink = UserDefaults.standard.string(forKey: "testVideoPath")
let baseUrl = URL(fileURLWithPath: NSHomeDirectory()) //app's home directory
let assetUrl = baseUrl.appendingPathComponent(savedLink!) //append the saved link to home path
now use the path to play video in AVPlayer
let avAssest = AVAsset(url: assetUrl)
let playerItem = AVPlayerItem(asset: avAssest)
let player = AVPlayer(playerItem: playerItem) // video path coming from above function
let playerViewController = AVPlayerViewController()
playerViewController.player = player
self.present(playerViewController, animated: true, completion: {
player.play()
})
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