Taking a closer look, array 1 is a copy paste of SidecarCore’s blacklist Ben-z discovered in Catalina): After about 5 min, I found that amework holds the array of blacklisted models (oddly enough, Apple made 2 arrays. Thanks to a great observation by we’re able to extract all the binaries that reside in this cache.Īfter compiling and running his file, I was able to rip all the binaries from Monterey’s dyld cache.Īfter this, it was trivially easy to find out where Apple hard coded the SMBIOS. This means that on disk there are no longer any proper binaries to grep the system for, instead one massive file that will take a week to load into a decompiler. So with macOS Big Sur and newer, Apple moved to a massive dyld cache approach for storing all the binaries. Older Intel iGPUs will fall back on software encoding by default however AMD and Nvidia dGPUs do not automatically. Why this is important is that Apple’s graphics stack already supports proper hardware accelerated decode on H.264 based GPUsįor Sidecar however, the only GPUs to properly support encode support are Intel’s Skylake+ iGPUs as well as Apple’s T2 chip. This is because AirPlay To Mac, unlike Sidecar, is almost entirely video decode based instead of encode. Well when we look at AirPlay to Mac, we see it actually has no H.265 requirement. So is AirPlay to Mac reliant on H.265? If so, why did Skylake Macs get dropped? ![]() Clearly the decision for which models were supported was not technical. Specifically iMac19,1 has no T2 and ships with a basic Polaris 20 dGPU core, then there’s the 2018 Mac mini with identical specs to the 2018 MacBook Pro 13”. ![]() ![]() MacPro7,1 - 2019 Mac Pro - Intel Cascade Lake + AMD Polaris dGPUĪt first glance, this limitation seems to be based off the T2 however upon closer inspection we see this is incorrect. Macmini9,1 - 2020 Mac mini - Apple Silicon M1 IMac19,x - 2019 iMac - Intel Coffee Lake + AMD Polaris dGPU MacBookPro15,x - 2018 T2 MacBook Pro - Intel Coffee Lake + AMD Polaris dGPU MacBookAir8,x - 2018 T2 MacBook Air - Intel Coffee Lake
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