How do I access a FairPlay protected stream's frame in Metal for some post processing ? OpenGL provides extensions called GLEXTprotectedtextures and EGLPROTECTEDCONTENTEXT for accessing protected frames as textures. What's the equivalent in Metal ?
And, does VideoToolBox support FairPlay decoding ?
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I noticed that if I play a white clip and compare it to setting RGB to (1,1,1) in a fragment shader in Metal, the clip has higher luminance (nits). How do I get the same nits on a Metal view ?