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Provide info about DRM overrides
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@vit9696
vit9696 committed Jan 6, 2021
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- IM/MM - iMac/Macmini models with IGPU, IGPU must have connector-less framebuffer-id when AMD/NV is used.
- IMP/MP - iMacPro/MacPro models without IGPU.
- Other configurations are used at your own risk, use `-shikioff` to disable modifications

# DRM Compatibiluty on macOS 11

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@marianopela

marianopela Jan 6, 2021

Typo there. Thanks for the info btw

Things to keep in mind:

- All kinds of software DRM decoders were removed from macOS 11
- All kinds of legacy hardware DRM decoders (e.g. NVIDIA VP3) were removed from macOS 11
- WhateverGreen Shiki functionality is not planned for inclusion for macOS 11
- AMD GPU video decoder preference can be chosen through preferences overrides for some types of DRM content (like Apple TV and iTunes movie streaming)
- Only IGPU-free Mac models allow for full DRM content access given a compatible AMD GPU video decoder

List of overrides:

- `defaults write com.apple.AppleGVA gvaForceAMDKE -boolean yes` forces AMD DRM decoder for streaming services (like Apple TV and iTunes movie streaming)
- `defaults write com.apple.AppleGVA gvaForceAMDAVCDecode -boolean yes` forces AMD AVC accelerated decoder
- `defaults write com.apple.AppleGVA gvaForceAMDAVCEncode -boolean yes` forces AMD AVC accelerated encoder
- `defaults write com.apple.AppleGVA gvaForceAMDHEVCDecode -boolean yes` forces AMD HEVC accelerated decoder
- `defaults write com.apple.AppleGVA disableGVAEncryption -string YES` forces AMD HEVC accelerated decoder
- `defaults write com.apple.coremedia hardwareVideoDecoder -string force` forces hardware accelerated video decoder (for any resolution)
- `defaults write com.apple.coremedia hardwareVideoDecoder -string disable` disables hardware accelerated video decoder (in QuickTime / Apple TV)

6 comments on commit 5f6c192

@telepati
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One question; are we still need shikigva mode with these overrides on Big Sur?

@vandroiy2013
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One question; are we still need shikigva mode with these overrides on Big Sur?

No

@ispiropoulos
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Does this mean that for people with iMac19,1 and Polaris Cards (headless intel) we can enable AMD DRM for Apple TV with defaults write com.apple.AppleGVA gvaForceAMDKE -boolean yes ?

@BenjaminX
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Does this mean that for people with iMac19,1 and Polaris Cards (headless intel) we can enable AMD DRM for Apple TV with defaults write com.apple.AppleGVA gvaForceAMDKE -boolean yes ?

I tested it, iMac 19,1 make TV+ works fine.

@atomizasser
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but at the moment there is no functional method that allows to view DRM content from safari using IGPU, right?

@Azazel71
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Dear developers, you can add DRM support for Fiji graphics (Radeon R9 FuryX 0x73001002) by enabling IOGVACodec
Снимок экрана 2021-02-09 в 08 57 03
Снимок экрана 2021-02-09 в 08 53 51

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