I am developing a DRM video player using AVPlayer and AVPlayerItem that can play either streamed or plain file movies.
I want to know if it is possible to detect the aspect ratio of the movie so that I can do some pan in / pan out to play the movie with or without the eventual black stripes.
I had a look at CoreMedia Framework, but the is not any real good documentation as most of the methods are not explained.
Do any of you guys have any idea?
Thanks.
实际上,这非常简单:只需使用AVPLayer的videoGravity即可解决。
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