CroqueMr / libreelec-x86-DV

# LibreELEC with Dolby Vision and AMD 3D support
Dolby Vision playback and HDR10 conversion in Kodi, powered by **CB1**, an
open-source Dolby Vision processing engine. Intel and AMD integrated graphics
are supported. Dedicated AMD Radeon and NVIDIA GeForce GPUs are experimental.
**R1.0.0 Beta5** · LibreELEC 13 · Kodi 22 RC1 · CB1 0.3
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No external player or proprietary Dolby SDK is required.
## Supported Dolby Vision profiles
| Profile | Support |
| --- | --- |
| 5 | Yes |
| 7 MEL | Yes |
| 7 FEL | Yes, including enhancement-layer reconstruction |
| 8.1 / 8.2 / 8.4 | Yes |
| 10 | Yes |
| 9, legacy profiles, 20 | No |
CM2.9 and CM4 metadata are supported. Mode availability depends on the source
format and the active output capabilities.
## Rendering modes
| Source | Mode | Output | Purpose |
| --- | --- | --- | --- |
| Dolby Vision | **Dolby Vision Standard** | Dolby Vision, TV-Led | Prioritize performance with near-imperceptible image differences |
| Dolby Vision | **Dolby Vision Master Reference** | Dolby Vision, TV-Led | Preserve original pixels and metadata as accurately as possible, aiming for bit-perfect playback |
| Dolby Vision | **Dolby Vision Adaptive HDR Mapping** | Dolby Vision, TV-Led | Expand highlights and selected midtones for the configured TV, guided by source metadata |
| Dolby Vision | **HDR10 Reference Basic** | HDR10 | Convert using source mastering information and scene guidance, without TV configuration |
| Dolby Vision | **HDR10 Reference Expert** | HDR10 | Map to the configured TV peak and gamut using compatible creative metadata |
| Dolby Vision | **Dolby Vision Disabled (native Kodi)** | Native Kodi output | Use Kodi's original playback and fallback behavior |
| HDR10 | **Dolby Vision Reference (AI)** | Dolby Vision, TV-Led | Generate L1/L3 scene metadata using image analysis and LightGBM, without an enhancement grade |
| HDR10 | **Dolby Vision Adaptive HDR Mapping (AI)** | Dolby Vision, TV-Led | Combine AI scene metadata with controlled highlight expansion |
| HDR10 | **HDR10 Native** | HDR10 | Keep native Kodi HDR10 playback |
| SDR / HLG | **Native** | Native SDR / HLG | Keep native Kodi playback |
Adaptive HDR Mapping and HDR10 Expert require a TV profile. Standard, Master
Reference, Basic and Reference AI do not.
For metadata use, curves and mode differences, see processing and algorithms.
### Quick rendering selection
Change rendering mode during playback. The bottom-right menu shows the choices
for the current source and explains unavailable modes.
Press **O** to cycle through **Player information**, **rendering selection** and
**video only**. Play/pause and seek remain available with either panel open.
### Player information
Source and output formats, Dolby Vision profile, CM version, BL/EL/FEL status,
metadata, active rendering mode, Fast state and supported GPU render-engine usage.
HDR10 and SDR show their relevant information without empty Dolby Vision sections.
GPU u