


You can follow along in activity monitor but all it really tells you is that the encoding process is active and it only uses the CPU, which is a damn shame. Resolution can't be manual, must be FHD or UHD.I can confirm that encoding via finder works but there are limitted options: From what I've read on the Apple Developer Pages, this is not out-of-spec for HEVC, but it is custom. Apple achieved this via AV Foundation Frameworks (what replaced QuickTime as a system driver for time-based media back in 2013) and as such is available in applications that make use of that on the macOS side. I know, this just makes Adobe's lack of support for this even more disappointing. If you're not using Compressor for anything else, you might reach out to Apple for a refund. MacOS Finder Encode Media dialog box with HEVC 2160p selected and Preserve Transparency enabled It's just using a bit rate that's optimized for smaller frame sizes. If your source ProRes4444 with Alpha video is 4320-by-4320, your HEVC H265 file will also be 4320-by4320. The "Resolution: up to 3840x2160" really should read something like "Target Bitrate: optimized for frame sizes up to 3840x3160". When the options dialog box appears, set the pop-up to HEVC2160p and enable Preserve Transparency. Instead of Compressor, we can right-click the Apple ProRes4444 with Alpha video file in the Finder and choose Encode Selected Video Files. The advantage of Compressor are features like a progress bar while processing, a Viewer to preview the movie prior to encoding, adding markers, and anything else that Compressor supports prior to starting the encode. If you're doing custom sizes up to 3840-by-2160, you don't need Compressor.
