# media-driver **Repository Path**: zywu/media-driver ## Basic Information - **Project Name**: media-driver - **Description**: No description available - **Primary Language**: Unknown - **License**: Not specified - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2021-06-02 - **Last Updated**: 2024-11-22 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # Intel(R) Media Driver for VAAPI ## Introduction The Intel(R) Media Driver for VAAPI is a new VA-API (Video Acceleration API) user mode driver supporting hardware accelerated decoding, encoding, and video post processing for GEN based graphics hardware. ## License The Intel(R) Media Driver for VAAPI is distributed under the MIT license with portions covered under the BSD 3-clause "New" or "Revised" License. You may obtain a copy of the License at [MIT](https://opensource.org/licenses/MIT) & [BSD-3-Clause](https://opensource.org/licenses/BSD-3-Clause) ## Prerequisites For Ubuntu 16.04+ ``` apt install autoconf libtool libdrm-dev xorg xorg-dev openbox libx11-dev libgl1-mesa-glx libgl1-mesa-dev ``` Equivalents for other distributions should work. ## Dependencies * [Libva](https://github.com/intel/libva) * [GmmLib](https://github.com/intel/gmmlib)(Please check [comparability with GmmLib](https://github.com/intel/media-driver/wiki/Comparability-with-GmmLib)) ## Building 1. Build and install libva master 2. Build and install gmmlib master 3. Get media repo and format the workspace folder as below (suggest the workspace to be a dedicated one for media driver build): ``` |- media-driver ``` 4. Create build_media new folder under your workspace ``` $ mkdir /build_media ``` then the workspace looks like below ``` |- media-driver |- build_media ``` 5. ``` $ cd /build_media ``` 6. ``` $ cmake ../media-driver ``` 7. ``` $ make -j"$(nproc)" ``` ## Install ``` $ sudo make install ``` This will install the following files (e.g. on Ubuntu): ``` -- Installing: /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so -- Installing: /etc/profile.d/intel-media.sh -- Installing: /usr/lib/x86_64-linux-gnu/igfxcmrt64.so ``` For iHD_drv_video.so please export related LIBVA environment variables. ``` export LIBVA_DRIVERS_PATH= export LIBVA_DRIVER_NAME=iHD ``` ## Supported Platforms * BDW (Broadwell) * SKL (Skylake) * BXT (Broxton) / APL (Apollo Lake) * KBLx (KBL/Kaby Lake; CFL/Coffe Lake; WHL/Whiskey Lake; CML/Comet Lake; AML/Amber Lake) * ICL (Ice Lake) * JSL (Jasper Lake)/EHL (Elkhart Lake) * TGL (Tiger Lake) * DG1/SG1 ## Components and Features Media driver contains three components as below * **Video decoding** calls hardware-based decoder([VDBox](https://01.org/sites/default/files/documentation/intel-gfx-prm-osrc-kbl-vol08-media_vdbox.pdf)) which provides fully-accelerated hardware video decoding to release the graphics engine for other operations. * **Video encoding** supports two modes, one calls hardware-based encoder([VDEnc](https://01.org/sites/default/files/documentation/intel-gfx-prm-osrc-kbl-vol08-media_vdbox.pdf)/[Huc](https://01.org/linuxgraphics/downloads/firmware?langredirect=1)) to provide low power encoding, another one is hardware([PAK](https://01.org/sites/default/files/documentation/intel-gfx-prm-osrc-kbl-vol08-media_vdbox.pdf))+shader(media kernel+[VME](https://01.org/sites/default/files/documentation/intel-gfx-prm-osrc-kbl-vol04-configurations.pdf)) based encoding. User could choose the mode through VA-API. * **Video processing** supports several popular features by hardware-based video processor([VEBox/SFC](https://01.org/sites/default/files/documentation/intel-gfx-prm-osrc-kbl-vol09-media_vebox.pdf)) and shader(media kernel) based solution together. Media driver supports two build types as below * **Full Feature Build** is default driver build, which supports all feature by hardware accelerator and close source shaders(media kernel binaries). Ubuntu [intel-media-va-driver-non-free](https://packages.ubuntu.com/disco/intel-media-va-driver-non-free) package is generated from this build type. * **Free Kernel Build**, enables fully open source shaders(media kernels) and hardware features but the features would be limited. Ubuntu [intel-media-va-driver](https://packages.ubuntu.com/disco/intel-media-va-driver) package is generated from this build type. ### Decoding/Encoding Features |CODEC | Build Types | BDW | SKL | BXT/APL | KBLx | ICL | EHL/JSL | TGL/RKL/ADL-S/ADL-P| DG1/SG1 | |---|---|---|---|---|---|---|---|---|---| | AVC | Full-Feature
Free-Kernel | D/Es
D | D/E/Es
D/E | D/E/Es
D/E | D/E/Es
D/E | D/E/Es
D/E | D/E
D/E | D/E/Es
D/E | D/E/Es
D/E | | MPEG-2 | Full-Feature
Free-Kernel | D/Es
D | D/Es
D | D
D | D/Es
D | D/Es
D | D
D | D/Es
D | D/Es
D | | VC-1 | Full-Feature
Free-Kernel | D
| D
| D
| D
| D
| D
| D
| D
| | JPEG | Full-Feature
Free-Kernel | D
D | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | | VP8 | Full-Feature
Free-Kernel | D
D | D
D | D
D | D/Es
D | D/Es
D | D
D | D*
D* | | | HEVC 8bit | Full-Feature
Free-Kernel | | D/Es
D | D/Es
D | D/Es
D | D/E/Es
D/E | D/E
D/E | D/E/Es
D/E | D/E/Es
D/E | | HEVC 8bit 422 | Full-Feature
Free-Kernel | | | | | D/Es
D | D
D | D/Es
D | D/Es
D | | HEVC 8bit 444 | Full-Feature
Free-Kernel | | | | | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | | HEVC 10bit | Full-Feature
Free-Kernel | | | D
D | D/Es
D | D/E/Es
D/E | D/E
D/E | D/E/Es
D/E | D/E/Es
D/E | | HEVC 10bit 422 | Full-Feature
Free-Kernel | | | | | D/Es
D | D
D | D/Es
D | D/Es
D | | HEVC 10bit 444 | Full-Feature
Free-Kernel | | | | | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | | HEVC 12bit | Full-Feature
Free-Kernel | | | | | | | D/Es
D | D/Es
D | | HEVC 12bit 422 | Full-Feature
Free-Kernel | | | | | | | D
D | D
D | | HEVC 12bit 444 | Full-Feature
Free-Kernel | | | | | | | D
D | D
D | | VP9 8bit | Full-Feature
Free-Kernel | | | D
D | D
D | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | | VP9 8bit 444 | Full-Feature
Free-Kernel | | | | | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | | VP9 10bit | Full-Feature
Free-Kernel | | | | D
D | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | | VP9 10bit 444 | Full-Feature
Free-Kernel | | | | | D/E
D/E | D/E
D/E | D/E
D/E | D/E
D/E | | VP9 12bit | Full-Feature
Free-Kernel | | | | | | | D
D | D
D | | VP9 12bit 444 | Full-Feature
Free-Kernel | | | | | | | D
D | D
D | | AV1 8bit | Full-Feature
Free-Kernel | | | | | | | D
D** | D
D** | | AV1 10bit | Full-Feature
Free-Kernel | | | | | | | D
D** | D
D** | * D - Hardware Decoding * E - Hardware Encoding, Low Power Encoding(VDEnc/Huc) * Es - Hardware(PAK) + Shader(media kernel+VME) Encoding \* VP8 decoding is only supported on TGL platform \** AV1 film grain kernel is not open source yet which doesn't necessarily match the libaom algorithm or film grain synthesis. For more information, please refer to * [Media Features Summary](https://github.com/intel/media-driver/blob/master/docs/media_features.md#media-features-summary) * [Supported Decoding Output Format and Max Resolution](https://github.com/intel/media-driver/blob/master/docs/media_features.md#supported-decoding-output-format-and-max-resolution) * [Supported Encoding Input Format and Max Resolution](https://github.com/intel/media-driver/blob/master/docs/media_features.md#supported-encoding-input-format-and-max-resolution) ### Video Processing Features | Features | Build Types | BDW | SKL | BXT/APL | KBLx | ICL | EHL/JSL | TGL/RKL/ADL-S/ADL-P | DG1/SG1 | |---|---|---|---|---|----|---|---|---|---| | Blending | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | CSC
(Color Space Conversion) | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | De-interlace | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes*
Yes* | Yes
Yes | Yes
Yes | | De-noise | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
| No
| Yes
| Yes
| | Luma Key | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | Mirroring | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | ProcAmp
(brightness,contrast,hue,saturation) | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | Rotation | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | Scaling | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | Sharpening | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | STD/E
(Skin Tone Detect & Enhancement) | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
| No
| Yes
| Yes
| | TCC
(Total Color Control) | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
| No
| Yes
| Yes
| | Color fill | Full-Feature
Free-Kernel | Yes
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | Chroma Siting | Full-Feature
Free-Kernel |
| Yes
| Yes
| Yes
| Yes
Yes | Yes
Yes | Yes
Yes | Yes
Yes | | HDR10 Tone Mapping | Full-Feature
Free-Kernel |
|
|
|
| Yes
| No
| Yes
| Yes
| \* EHL/JSL only support BOB DI For more feature information, please refer to [Supported video processing csc/scaling format](https://github.com/intel/media-driver/blob/master/docs/media_features.md#supported-video-processing-cscscaling-format) ### Build Options Media-driver supports few build types as described below. You could refer to the following settings to enable them. * **Full Feature Build**: ENABLE_KERNELS=ON(Default) ENABLE_NONFREE_KERNELS=ON(Default) * **Free Kernel Build**: ENABLE_KERNELS=ON ENABLE_NONFREE_KERNELS=OFF * If trying to use pre-built open source kernel binaries, please add BUILD_KERNELS=OFF(Default). * If trying to rebuild open source kernel from source code, please add BUILD_KERNELS=ON. Media-driver requires special i915 kernel mode driver (kmd) version to support the following new platforms since upstream version of i915 kmd does not fully support them (pending patches upstream): * DG1 * SG1 By default, media-driver builds against upstream i915 kmd and will miss support for the platforms listed above. To enable new platforms which require special i915 kmd specify `ENABLE_PRODUCTION_KMD=ON` (default: `OFF`) build configuration option. ## Known Issues and Limitations 1. Intel(R) Media Driver for VAAPI is recommended to be built against gcc compiler v6.1 or later, which officially supported C++11. 2. SKL: Green or other incorrect color will be observed in output frames when using YV12/I420 as input format for csc/scaling/blending/rotation, etc. on Ubuntu 16.04 stock (with kernel 4.10). The issue can be addressed with the kernel patch: [WaEnableYV12BugFixInHalfSliceChicken7](https://cgit.freedesktop.org/drm-tip/commit/?id=0b71cea29fc29bbd8e9dd9c641fee6bd75f68274) 3. HuC firmware is necessary for AVC/HEVC/VP9 low power encoding bitrate control, including CBR, VBR, etc. As of now, HuC firmware support is disabled in Linux kernels by default. kernel command line option "i915.enable_guc=2" for HuC loading can be set e.g. by doing echo "options i915 enable_guc=2" > /etc/modprobe.d/i915.conf (as root). Mind that HuC firmware support presents in the following kernels for the specified platforms: * APL/KBL: starting from kernel 4.11 * CFL: starting from kernel 4.15 * ICL: starting from kernel 5.2 * EHL/JSL: starting from kernel 5.8 * TGL: starting from kernel 5.9 * RKL: [drm-tip](https://cgit.freedesktop.org/drm-tip) ##### (*) Other names and brands may be claimed as property of others.