player.rate = 4.0 doesn't work for me.
Is it a good way to achieve rate of 4.0 with AVPlayer, or there is a better approach?
player.rate = 4.0 doesn't work for me.
Is it a good way to achieve rate of 4.0 with AVPlayer, or there is a better approach?
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Use
[AVComposition scaleTimeRange:toDuration:]to produce a fast-motionAVAsset.