编译支持QSV 显卡硬件加速的FFMPEG

Build FFmpeg QSV · Intel-Media-SDK/MediaSDK Wiki
update:2021-9-30
Install all required common packages:
You can get it in two ways:

Build from sources:

Intel Media Driver for VAAPI (aka iHD) (gmmlib and LibVA required)
Intel Media SDK
do not forget to export environment variables:

export LIBVA_DRIVERS_PATH=/path/to/iHD_driver
export LIBVA_DRIVER_NAME=iHD
export LD_LIBRARY_PATH=/path/to/msdk/lib
export PKG_CONFIG_PATH=/path/to/msdk/lib/pkgconfig

Starting from Ubuntu 19.04 Intel media stack components are available for installation via apt-get (see: Intel media stack on Ubuntu).

sudo apt-get install libva-dev libmfx-dev intel-media-va-driver-non-free
export LIBVA_DRIVER_NAME=iHD

For build ffplay (as part of ffmpeg) you also need to install additional dependencies:

sudo apt-get install libsdl2-dev

Build FFmpeg
Get ffmpeg sources
git clone https://github.com/ffmpeg/ffmpeg
cd ffmpeg

Configure and build FFmpeg install
Configure ffmpeg for use with vaapi and MediaSDK. Main key is --enable-libmfx

./configure --arch=x86_64 --disable-yasm --enable-vaapi --enable-libmfx
make

If you need a debug version of ffmpeg you can try

./configure --arch=x86_64 --disable-yasm --enable-vaapi --enable-libmfx \

        --enable-debug=3 --disable-stripping --extra-cflags=-gstabs+ \
        --disable-optimizations

make
Referenced from:https://github.com/Intel-Media-SDK/MediaSDK/wiki/Build-FFmpeg-QSV

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