Since I found the guy from pcbeta.com managed to have full HW acceleration on his i5-9400F build with 18E2034 Mojave using iMac19,2 SMBIOS (
source). I wanted to find out if it was also applicable for my Xeon build.
(As you can see from the snapshot, he has full HW acceleration, even though he is not aware of it. As he said, "I have no idea what HW acceleration is." in his post.)
My specs,
CPU: Xeon E3-1231 v3
GPU: RX580 Nitro+ 8G
Case 1:10.14.4 18E2034 + MacPro5,1/iMac19,1/iMac19,2
--> neither supports H264 nor HEVC
Case 2:18E2034 + iMacPro1,1 + AppleGVA.framework/AppleGVACore.framework (10.14.5 beta 5)+ AMDxxxxxx.kexts from 10.14.5 beta4
--> Both H264 and HEVC HW acceleration are fully supported. FYI, I was able to export render BruceX 5K in FCPX in the format of HEVC 8bit, while in 10bits, FCPX didn't utilize GPU (I assume a real Mac can also
ONLY support SW HEVC 10bit encoding).
Case 3: the same as
Case 2, (frameworks and KEXTs) but using MacPro5,1
Case 3_1: the same as above, but inserting MacPro5,1 key with the same property on iMacPro1,1 in AppleGVA.framework and AppleGVACore.framework
Code:
<key>MacPro5,1</key>
<dict>
<key>allowFrameReordering</key>
<false/>
<key>hwe</key>
<true/>
<key>hwe420</key>
<true/>
<key>interlacedOff</key>
<true/>
<key>ke1</key>
<true/>
</dict>
--> In both cases, only HEVC HW acceleration is fully supported.
Case 4: Using MacPro5,1 (cMP) SMBIOS, replacing iMacPro1,1 board-id:
Mac-7BA5B2D9E42DDD94
--> Both H264 and HEVC HW acceleration are fully supported. Although this is easily doable on Hackintosh with a Clover flag, unfortunately, it might be not feasible on cMPs.
FYI, I have no issue in exporting HEVC from Compressor.
