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How to build and use media driver
For Ubuntu 16.04 and above. (Equivalents for other distributions should work)
$ sudo apt-get install autoconf libtool libdrm-dev xorg xorg-dev openbox libx11-dev libgl1-mesa-glx libgl1-mesa-dev xutils-dev
Before building media driver, we need to build libva first. (we need to rebuild if libva(VAAPI) update or changes)
Get libva:
$ git clone https://github.com/intel/libva.git
Build and install
$ cd libva
$ ./autogen.sh --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu
$ make -j8
$ sudo make install
$ git clone https://github.com/intel/gmmlib.git
$ cd gmmlib/
$ mkdir build && cd build
$ cmake -DCMAKE_INSTALL_PREFIX=/usr/ -DCMAKE_INSTALL_LIBDIR=/usr/lib/x86_64-linux-gnu -DCMAKE_BUILD_TYPE=ReleaseInternal .. (this command is building release internal version)
$ make -j8
$ sudo make install
$ git clone https://github.com/intel/media-driver.git
$ mkdir build_media
$ cd build_media
$ cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=/usr/lib/x86_64-linux-gnu ../media-driver
(If building debug or release internal version, please use this command: $ cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_TYPE=release-internal ../media-driver)
$ make -j8
After the building, we can use the generated iHD_drv_video.so(/build_media/media-driver) to replace the one at /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so.
We can use vainfo to check if the current media driver is working or not.
$ export LIBVA_DRIVERS_PATH=/usr/lib/x86_64-linux-gnu/dri/
$ export LIBVA_DRIVER_NAME=iHD
$ vainfo
If you are seeing this on the screen, that shows media driver is working. Have a fun!
libva info: VA-API version 1.4.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri//iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_4
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.4 (libva 2.0.1.pre1)
vainfo: Driver version: Intel iHD driver - 1.0.0
vainfo: Supported profile and entrypoints
[LIBVA]:ENTER - DdiMedia_QueryConfigProfiles
[LIBVA]:ENTER - DdiMedia_QueryConfigEntrypoints
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