AVPlayerItem playerItemWithURL a little slow to have a very good smoth scrolling

Question

During the scrolling of my app feed, I load some videos inside an AVPlayer. The problem is that AVPlayerItem playerItemWithUrl and AVPlayer playerWithPlayerItem are a little slow (around 16ms), so it's produce frame drop in my app. Is their any way to speed it up? Maybe i can call these functions in a background thread ?

Below the code i use to create the Player:

  FPlayerItem := TAVPlayerItem.Wrap(TAVPlayerItem.OCClass.playerItemWithURL(aURL)); 
  FPlayer := TAVPlayer.Wrap(TAVPlayer.OCClass.playerWithPlayerItem(FPlayerItem));

It's will be probably irrelevant because it's made in delphi, but i simply do AVPlayerItem playerItemWithUrl and later AVPlayer playerWithPlayerItem nothing else — zeus, Feb 01 '18 at 20:03
Did you try playing the item inside loadValuesAsynchronously ? — Nitish, Feb 01 '18 at 20:07
i update the question with the code. no, how to use loadValuesAsynchronously ? — zeus, Feb 01 '18 at 20:15

Nitish · Answer 1 · 2018-02-01T20:34:27.713

Play the item inside AVAsynchronousKeyValueLoading.
It clearly states :

Methods you can implement to use an asset or asset track without blocking the calling thread.

So logically, for understanding:

let asset = AVAsset(url: url)
let keys: [String] = ["playable"]
asset.loadValuesAsynchronously(forKeys: keys) {
DispatchQueue.main.async {         
      let item = AVPlayerItem(asset: asset)
      let player = AVPlayer(playerItem: item)
      player.play()
      }
}

This answer will help you understand it better.

AVPlayerItem playerItemWithURL a little slow to have a very good smoth scrolling

1 Answers1