Merge pull request #667 from stonerl/hls-set-target-quality

HLS: set target bitrate / AVPlayer: higher resolution

Model/Player/Backends/AVPlayerBackend.swift

@@ -307,6 +307,11 @@ final class AVPlayerBackend: PlayerBackend {
         removeItemDidPlayToEndTimeObserver()
 
         model.playerItem = playerItem(stream)
+
+        if stream.isHLS {
+            model.playerItem?.preferredPeakBitRate = Double(model.qualityProfile?.resolution.value.bitrate ?? 0)
+        }
+
         guard model.playerItem != nil else {
             return
         }