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【系统】4.4.131-20200604.kylin.desktop.android-generic
【apt源地址】
deb http://archive.kylinos.cn/kylin/KYLIN-ALL 10.0 main restricted universe multiverse
deb http://archive.kylinos.cn/kylin/partner juniper main
【CPU】飞腾D2000/8
【显卡】XXX
【驱动版本】XXX
1.2 问题现象
使用mpv命令行尝试硬解播放视频时出现报错。无法正常播放。
mpv --vo=vaapi --hwdec=vaapi 3840x2160_60fps_Main_h264.mp4
Playing: 3840x2160_60fps_Main_h264.mp4
(+) Video --vid=1 (*) (h264)
(+) Audio --aid=1 --alang=und (*) (aac)
libva info: VA-API version 0.39.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/XXXX_drv_video.so
libva error: /usr/lib/aarch64-linux-gnu/dri/XXXX_drv_video.so has no function __vaDriverInit_0_32
libva info: va_openDriver() returns -1
[vaapi] vaInitialize(): unknown libva error
Error opening/initializing the selected video_out (-vo) device.
Video: no video
AO: [alsa] 48000Hz stereo 2ch float
A: 00:00:01 / 00:03:59 (0%)
Exiting... (Quit)
2 问题定位
XXX显卡支持vaapi标准，使用vaapi硬件加速需要libva的库。该系统自带的libva版本为：1.7.0
dpkg -l | grep libva
ii libva-wayland1:arm64 1.7.0-1kord arm64 Video Acceleration (VA) API for Linux -- Wayland runtime
ii libva-x11-1:arm64 1.7.0-1kord arm64 Video Acceleration (VA) API for Linux -- X11 runtime
ii libva1:arm64 1.7.0-1kord arm64 Video Acceleration (VA) API for Linux -- runtime
而XXX支持的libva的最低版本为2.1.0，该系统上的libva版本不满足要求，故无法正常使用硬解。
3 机理分析
libva在1.x.x的版本和2.x.x版本之间存在重大变更，因此2.x.x版本不能向后兼容1.x.x版本。
该issue中的问题类似，可以进行参考：github.com/intel/media…
4 解决措施
4.1 源码编译libva、ffmpeg、mpv、ffvademo（后面太长不看版）
libva
tar -xvf libva-2.1.0.tar.gz
cd libva-2.1.0
./autogen.sh -with-drivers-path=/usr/lib/aarch64-linux-gnu/dri
sudo make install
ffmpeg
tar -xvf FFmpeg-n4.2.2.tar.gz
cd FFmpeg-n4.2.2
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
./configure --enable-debug --enable-shared
make -j8
sudo make install
sudo ldconfig
ffmpeg -hwaccels
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
export LD_LIBRARY_PATH=/usr/lib/aarch64-linux-gnu/XXX
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
#sudo apt install liblua5.1-0-dev libass-dev libbluray-dev libuchardet-dev librubberband-dev liblcms2-dev libpulse-dev libalsa-ocaml-dev libgbm-dev libx11-dev libxinerama-dev libxv-dev x11proto-scrnsaver-dev libxss-dev libcaca-dev libxrandr-dev libxtst-dev libxi-dev
tar -xvf mpv-depends.tar.gz
cd mpv-depends
sudo dpkg -i *.deb
cd ../
tar -xvf mpv-0.32.0-Waf.tar.gz
cd mpv-0.32.0
./waf configure --enable-libmpv-shared
./waf build
sudo ./waf install
mpv --vo=gpu --hwdec=vaapi /home/kylin/videos/3840x2160_60fps_Main_h264.mp4
ffvademo
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
export LD_LIBRARY_PATH=/usr/lib/aarch64-linux-gnu/XXXX
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
unzip ffvademo-master.zip
cd ffvademo-master
mkdir build
cd build
cmake ..
make -j8
./ffvademo /home/kylin/videos/3840x2160_60fps_Main_h264.mp4
4.2 源码编译libva
将源码包libva-2.1.0.tar.gz拷贝到系统中，解压并进入解压后的路径内。
tar -xvf libva-2.1.0.tar.gz
cd libva-2.1.0
利用源码包内自带的脚本进行依赖检测以及生成MakeFile文件，执行命令：./autogen.sh
./autogen.sh -with-drivers-path=/usr/lib/aarch64-linux-gnu/dri
autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal -I m4 ${ACLOCAL_FLAGS}
autoreconf: configure.ac: tracing
autoreconf: running: libtoolize --copy
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
autoreconf: running: /usr/bin/autoconf
autoreconf: running: /usr/bin/autoheader
autoreconf: running: automake --add-missing --copy --no-force
configure.ac:166: installing './compile'
configure.ac:166: installing './config.guess'
configure.ac:166: installing './config.sub'
configure.ac:93: installing './install-sh'
configure.ac:93: installing './missing'
va/Makefile.am: installing './depcomp'
va/wayland/Makefile.am:30: warning: source file '../drm/va_drm_utils.c' is in a subdirectory,
va/wayland/Makefile.am:30: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
autoreconf: Leaving directory `.'
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking build system type... aarch64-unknown-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking how to print strings... printf
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... gcc3
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F
checking for ld used by gcc... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking how to convert aarch64-unknown-linux-gnu file names to aarch64-unknown-linux-gnu format... func_convert_file_noop
checking how to convert aarch64-unknown-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /usr/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for a working dd... /bin/dd
checking how to truncate binary pipes... /bin/dd bs=4096 count=1
checking for mt... mt
checking if mt is a manifest tool... no
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/bin/ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... no
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking whether gcc understands -c and -o together... (cached) yes
checking dependency style of gcc... (cached) gcc3
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking how to run the C++ preprocessor... g++ -E
checking for ld used by g++... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes
checking for g++ option to produce PIC... -fPIC -DPIC
checking if g++ PIC flag -fPIC -DPIC works... yes
checking if g++ static flag -static works... yes
checking if g++ supports -c -o file.o... yes
checking if g++ supports -c -o file.o... (cached) yes
checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes
checking dynamic linker characteristics... (cached) GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking for a sed that does not truncate output... (cached) /bin/sed
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for ANSI C header files... (cached) yes
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking whether __attribute__((visibility())) is supported... yes
checking for DRM... yes
checking for X11... yes
checking for GLX... yes
checking GL/gl.h usability... yes
checking GL/gl.h presence... yes
checking for GL/gl.h... yes
checking GL/glx.h usability... yes
checking GL/glx.h presence... yes
checking for GL/glx.h... yes
checking for glXCreateContext in -lGL... yes
checking for WAYLAND... yes
checking for wayland-scanner... /usr/bin/wayland-scanner
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating doc/Makefile
config.status: creating pkgconfig/Makefile
config.status: creating pkgconfig/libva-drm.pc
config.status: creating pkgconfig/libva-glx.pc
config.status: creating pkgconfig/libva-wayland.pc
config.status: creating pkgconfig/libva-x11.pc
config.status: creating pkgconfig/libva.pc
config.status: creating va/Makefile
config.status: creating va/drm/Makefile
config.status: creating va/glx/Makefile
config.status: creating va/va_version.h
config.status: creating va/wayland/Makefile
config.status: creating va/x11/Makefile
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing libtool commands
libva - 2.1.0 (VA-API 1.1.0)
Installation prefix .............. : /usr/local
Default driver path .............. : /usr/lib/aarch64-linux-gnu/dri
Extra window systems ............. : drm x11 glx wayland
Build documentation .............. : no
Build with messaging ............. : yes
Now type 'make' to compile libva.
编译并安装，执行命令：sudo make install
sudo make install
Making install in va
make[1]: Entering directory '/home/kylin/libva/libva-2.1.0/va'
Making install in drm
make[2]: Entering directory '/home/kylin/libva/libva-2.1.0/va/drm'
CC va_drm.lo
CC va_drm_auth.lo
CC va_drm_utils.lo
CC va_drm_auth_x11.lo
CCLD libva_drm.la
ar: `u' modifier ignored since `D' is the default (see `U')
make[3]: Entering directory '/home/kylin/libva/libva-2.1.0/va/drm'
make[3]: Nothing to be done for 'install-exec-am'.
/bin/mkdir -p '/usr/local/include/va'
/usr/bin/install -c -m 644 va_drm.h '/usr/local/include/va'
make[3]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/drm'
make[2]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/drm'
Making install in x11
make[2]: Entering directory '/home/kylin/libva/libva-2.1.0/va/x11'
CC dri2_util.lo
CC va_dri2.lo
CC va_dricommon.lo
CC va_fglrx.lo
CC va_nvctrl.lo
CC va_x11.lo
CCLD libva_x11.la
ar: `u' modifier ignored since `D' is the default (see `U')
make[3]: Entering directory '/home/kylin/libva/libva-2.1.0/va/x11'
make[3]: Nothing to be done for 'install-exec-am'.
/bin/mkdir -p '/usr/local/include/va'
/usr/bin/install -c -m 644 va_dri2.h va_dricommon.h '/usr/local/include/va'
make[3]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/x11'
make[2]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/x11'
Making install in glx
make[2]: Entering directory '/home/kylin/libva/libva-2.1.0/va/glx'
CC va_glx.lo
CC va_glx_impl.lo
CCLD libva_glx.la
ar: `u' modifier ignored since `D' is the default (see `U')
make[3]: Entering directory '/home/kylin/libva/libva-2.1.0/va/glx'
make[3]: Nothing to be done for 'install-exec-am'.
/bin/mkdir -p '/usr/local/include/va'
/usr/bin/install -c -m 644 va_backend_glx.h va_glx.h '/usr/local/include/va'
make[3]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/glx'
make[2]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/glx'
Making install in wayland
make[2]: Entering directory '/home/kylin/libva/libva-2.1.0/va/wayland'
GEN wayland-drm-client-protocol.h
GEN wayland-drm-client-protocol-export.c
GEN wayland-drm-client-protocol.c
make install-am
make[3]: Entering directory '/home/kylin/libva/libva-2.1.0/va/wayland'
CC va_wayland.lo
CC va_wayland_drm.lo
CC va_wayland_emgd.lo
CC va_drm_utils.lo
CC wayland-drm-client-protocol.lo
CCLD libva_wayland.la
ar: `u' modifier ignored since `D' is the default (see `U')
make[4]: Entering directory '/home/kylin/libva/libva-2.1.0/va/wayland'
make[4]: Nothing to be done for 'install-exec-am'.
/bin/mkdir -p '/usr/local/include/va'
/usr/bin/install -c -m 644 va_backend_wayland.h va_wayland.h '/usr/local/include/va'
make[4]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/wayland'
make[3]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/wayland'
make[2]: Leaving directory '/home/kylin/libva/libva-2.1.0/va/wayland'
make[2]: Entering directory '/home/kylin/libva/libva-2.1.0/va'
CC va.lo
CC va_compat.lo
CC va_fool.lo
CC va_str.lo
CC va_trace.lo
CCLD libva.la
CCLD libva-drm.la
CCLD libva-x11.la
CCLD libva-glx.la
CCLD libva-wayland.la
make[3]: Entering directory '/home/kylin/libva/libva-2.1.0/va'
/bin/mkdir -p '/usr/local/lib'
/bin/bash ../libtool --mode=install /usr/bin/install -c libva.la libva-drm.la libva-x11.la libva-glx.la libva-wayland.la '/usr/local/lib'
libtool: install: /usr/bin/install -c .libs/libva.so.2.100.0 /usr/local/lib/libva.so.2.100.0
libtool: install: (cd /usr/local/lib && { ln -s -f libva.so.2.100.0 libva.so.2 || { rm -f libva.so.2 && ln -s libva.so.2.100.0 libva.so.2; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libva.so.2.100.0 libva.so || { rm -f libva.so && ln -s libva.so.2.100.0 libva.so; }; })
libtool: install: /usr/bin/install -c .libs/libva.lai /usr/local/lib/libva.la
libtool: warning: relinking 'libva-drm.la'
libtool: install: (cd /home/kylin/libva/libva-2.1.0/va; /bin/bash "/home/kylin/libva/libva-2.1.0/libtool" --silent --tag CC --mode=relink gcc -g -O2 -version-info 102:0:100 -o libva-drm.la -rpath /usr/local/lib libva.la drm/libva_drm.la -ldrm -ldl )
libtool: install: /usr/bin/install -c .libs/libva-drm.so.2.100.0T /usr/local/lib/libva-drm.so.2.100.0
libtool: install: (cd /usr/local/lib && { ln -s -f libva-drm.so.2.100.0 libva-drm.so.2 || { rm -f libva-drm.so.2 && ln -s libva-drm.so.2.100.0 libva-drm.so.2; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libva-drm.so.2.100.0 libva-drm.so || { rm -f libva-drm.so && ln -s libva-drm.so.2.100.0 libva-drm.so; }; })
libtool: install: /usr/bin/install -c .libs/libva-drm.lai /usr/local/lib/libva-drm.la
libtool: warning: relinking 'libva-x11.la'
libtool: install: (cd /home/kylin/libva/libva-2.1.0/va; /bin/bash "/home/kylin/libva/libva-2.1.0/libtool" --silent --tag CC --mode=relink gcc -g -O2 -version-info 102:0:100 -o libva-x11.la -rpath /usr/local/lib libva.la x11/libva_x11.la -lX11 -lXext -lXfixes -ldrm -ldl )
libtool: install: /usr/bin/install -c .libs/libva-x11.so.2.100.0T /usr/local/lib/libva-x11.so.2.100.0
libtool: install: (cd /usr/local/lib && { ln -s -f libva-x11.so.2.100.0 libva-x11.so.2 || { rm -f libva-x11.so.2 && ln -s libva-x11.so.2.100.0 libva-x11.so.2; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libva-x11.so.2.100.0 libva-x11.so || { rm -f libva-x11.so && ln -s libva-x11.so.2.100.0 libva-x11.so; }; })
libtool: install: /usr/bin/install -c .libs/libva-x11.lai /usr/local/lib/libva-x11.la
libtool: warning: relinking 'libva-glx.la'
libtool: install: (cd /home/kylin/libva/libva-2.1.0/va; /bin/bash "/home/kylin/libva/libva-2.1.0/libtool" --silent --tag CC --mode=relink gcc -g -O2 -version-info 102:0:100 -o libva-glx.la -rpath /usr/local/lib libva.la glx/libva_glx.la libva-x11.la -lGL -lX11 -ldl )
libtool: install: /usr/bin/install -c .libs/libva-glx.so.2.100.0T /usr/local/lib/libva-glx.so.2.100.0
libtool: install: (cd /usr/local/lib && { ln -s -f libva-glx.so.2.100.0 libva-glx.so.2 || { rm -f libva-glx.so.2 && ln -s libva-glx.so.2.100.0 libva-glx.so.2; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libva-glx.so.2.100.0 libva-glx.so || { rm -f libva-glx.so && ln -s libva-glx.so.2.100.0 libva-glx.so; }; })
libtool: install: /usr/bin/install -c .libs/libva-glx.lai /usr/local/lib/libva-glx.la
libtool: warning: relinking 'libva-wayland.la'
libtool: install: (cd /home/kylin/libva/libva-2.1.0/va; /bin/bash "/home/kylin/libva/libva-2.1.0/libtool" --silent --tag CC --mode=relink gcc -g -O2 -version-info 102:0:100 -o libva-wayland.la -rpath /usr/local/lib libva.la wayland/libva_wayland.la -lwayland-client -ldrm -ldl )
libtool: install: /usr/bin/install -c .libs/libva-wayland.so.2.100.0T /usr/local/lib/libva-wayland.so.2.100.0
libtool: install: (cd /usr/local/lib && { ln -s -f libva-wayland.so.2.100.0 libva-wayland.so.2 || { rm -f libva-wayland.so.2 && ln -s libva-wayland.so.2.100.0 libva-wayland.so.2; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libva-wayland.so.2.100.0 libva-wayland.so || { rm -f libva-wayland.so && ln -s libva-wayland.so.2.100.0 libva-wayland.so; }; })
libtool: install: /usr/bin/install -c .libs/libva-wayland.lai /usr/local/lib/libva-wayland.la
libtool: finish: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin:/sbin" ldconfig -n /usr/local/lib
----------------------------------------------------------------------
Libraries have been installed in:
/usr/local/lib
If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the '-LLIBDIR'
flag during linking and do at least one of the following:
- add LIBDIR to the 'LD_LIBRARY_PATH' environment variable
during execution
- add LIBDIR to the 'LD_RUN_PATH' environment variable
during linking
- use the '-Wl,-rpath -Wl,LIBDIR' linker flag
- have your system administrator add LIBDIR to '/etc/ld.so.conf'
See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------
/bin/mkdir -p '/usr/local/include/va'
/usr/bin/install -c -m 644 va.h va_backend.h va_backend_vpp.h va_compat.h va_dec_hevc.h va_dec_jpeg.h va_dec_vp8.h va_dec_vp9.h va_drmcommon.h va_egl.h va_enc_hevc.h va_enc_h264.h va_enc_jpeg.h va_enc_vp8.h va_fei.h va_fei_h264.h va_enc_mpeg2.h va_fei_hevc.h va_enc_vp9.h va_str.h va_tpi.h va_version.h va_vpp.h va_x11.h '/usr/local/include/va'
make[3]: Leaving directory '/home/kylin/libva/libva-2.1.0/va'
make[2]: Leaving directory '/home/kylin/libva/libva-2.1.0/va'
make[1]: Leaving directory '/home/kylin/libva/libva-2.1.0/va'
Making install in pkgconfig
make[1]: Entering directory '/home/kylin/libva/libva-2.1.0/pkgconfig'
make[2]: Entering directory '/home/kylin/libva/libva-2.1.0/pkgconfig'
make[2]: Nothing to be done for 'install-exec-am'.
/bin/mkdir -p '/usr/local/lib/pkgconfig'
/usr/bin/install -c -m 644 libva.pc libva-drm.pc libva-x11.pc libva-glx.pc libva-wayland.pc '/usr/local/lib/pkgconfig'
make[2]: Leaving directory '/home/kylin/libva/libva-2.1.0/pkgconfig'
make[1]: Leaving directory '/home/kylin/libva/libva-2.1.0/pkgconfig'
make[1]: Entering directory '/home/kylin/libva/libva-2.1.0'
make[2]: Entering directory '/home/kylin/libva/libva-2.1.0'
make[2]: Nothing to be done for 'install-exec-am'.
make[2]: Nothing to be done for 'install-data-am'.
make[2]: Leaving directory '/home/kylin/libva/libva-2.1.0'
make[1]: Leaving directory '/home/kylin/libva/libva-2.1.0'
4.2.1 libva库结构分析（过程记录）
麒麟系统自带版本（1.7.0）
系统自带的libva库位于/usr/lib/aarch64-linux-gnu/
ll /usr/lib/aarch64-linux-gnu/ | grep libva.so
lrwxrwxrwx 1 root root 17 11月 29 11:14 libva.so.1 -> libva.so.1.3900.0
-rw-r--r-- 1 root root 100712 4月 26 2016 libva.so.1.3900.0
自编译版本（2.1.0）
自编译的libva库位于/usr/local/lib/
ll /usr/local/lib/ | grep libva
lrwxrwxrwx 1 root root 16 11月 30 09:54 libva.so -> libva.so.2.100.0*
lrwxrwxrwx 1 root root 16 11月 30 09:54 libva.so.2 -> libva.so.2.100.0*
-rwxr-xr-x 1 root root 518344 11月 30 09:54 libva.so.2.100.0*
系统自带的libva库和自编译的libva库存在比较明显的区别
系统自带的libva库对外暴露的是libva.so.1的软链接
自编译的libva库对外暴露的是libva.so和libva.so.2的软链接
4.2.2 vainfo测试（过程记录）
使用vainfo，可以打印libva库相关的信息。
如果没有vainfo，需要安装：sudo apt install vainfo
由于需要使用自编译版本，环境变量需要指定
export LD_LIBRARY_PATH=/usr/local/lib
export LIBVA_DRIVER_NAME=XXX
vainfo
libva info: VA-API version 0.39.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/XXXX_drv_video.so
libva error: /usr/lib/aarch64-linux-gnu/dri/XXX_drv_video.so has no function __vaDriverInit_0_32
libva info: va_openDriver() returns -1
vaInitialize failed with error code -1 (unknown libva error),exit
指定环境变量之后，发现还是跟之前一样的报错，查看一下vainfo的动态库依赖
export LD_LIBRARY_PATH=/usr/local/lib
export LIBVA_DRIVER_NAME=XXX
ldd /usr/bin/vainfo | grep libva
libva.so.1 => /usr/lib/aarch64-linux-gnu/libva.so.1 (0x0000007f95ca8000)
libva-x11.so.1 => /usr/lib/aarch64-linux-gnu/libva-x11.so.1 (0x0000007f95c93000)
libva-drm.so.1 => /usr/lib/aarch64-linux-gnu/libva-drm.so.1 (0x0000007f95b58000)
libva-wayland.so.1 => /usr/lib/aarch64-linux-gnu/libva-wayland.so.1 (0x0000007f95b44000)
发现是通过libva.so.1来找系统中的库，自编译的libva库对外暴露的是libva.so和libva.so.2的软链接，自然就无法链接到程序上。
4.2.3 mpv测试（过程记录）
再来测试下mpv
export LD_LIBRARY_PATH=/usr/local/lib
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
mpv --vo=vaapi --hwdec=vaapi 3840x2160_60fps_Main_h264.mp4
Playing: 3840x2160_60fps_Main_h264.mp4
(+) Video --vid=1 (*) (h264)
(+) Audio --aid=1 --alang=und (*) (aac)
libva info: VA-API version 0.39.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/XXX_drv_video.so
libva error: /usr/lib/aarch64-linux-gnu/dri/XXX_drv_video.so has no function __vaDriverInit_0_32
libva info: va_openDriver() returns -1
[vaapi] vaInitialize(): unknown libva error
Error opening/initializing the selected video_out (-vo) device.
Video: no video
AO: [alsa] 48000Hz stereo 2ch float
A: 00:00:01 / 00:03:59 (0%)
Exiting... (Quit)
错误打印是和之前一样的，同样查看一下mpv的动态库依赖
export LD_LIBRARY_PATH=/usr/local/lib
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
ldd /usr/bin/mpv | grep libva
libva.so.1 => /usr/lib/aarch64-linux-gnu/libva.so.1 (0x0000007f939d8000)
libva-x11.so.1 => /usr/lib/aarch64-linux-gnu/libva-x11.so.1 (0x0000007f93966000)
libva-wayland.so.1 => /usr/lib/aarch64-linux-gnu/libva-wayland.so.1 (0x0000007f938a4000)
和vainfo现象相同
4.2.4 ffvademo测试（过程记录）
vainfo和mpv都是系统提供的软件，可能在源码编译时使用的libva版本就为1.7.0。
由于libva库的2.x.x版本不能向后兼容1.x.x版本，所以手动编译的版本也不能被vainfo和mpv用上。
那么手动编译的的程序，能否选择指定的libva库？
这里选择ffvademo进行测试。ffvademo是Intel提供的一个简单的基于vaapi标准的播放器。
github仓库地址：github.com/intel/ffvad…
因为这个demo仓库已经多年不维护，实际编译过程中会出现一些问题，需要修改demo的源码。
（另外涉及到XXXX相关特性）
建议使用文章内提供的ffvademo版本：文章后续将未进行改动的版本叫做原始版本以作区分
此处仅使用demo对硬件解码的可行性进行验证，下面仅记录影响原始版本编译的两处改动，其余代码改动不进行分析。
4.2.4.1 依赖安装
需要提前安装ffmpeg的相关依赖库
sudo apt install libavutil-dev libavcodec-dev libavformat-dev libavfilter-dev libswscale-dev
# 实际安装的库
libavutil-ffmpeg54 libavutil-dev libswresample-ffmpeg1 libavcodec-ffmpeg56 libswresample-dev libavcodec-dev libavformat-ffmpeg56 libavformat-dev libavresample-ffmpeg2 libpostproc-ffmpeg53 libswscale-ffmpeg3 libavfilter-ffmpeg5 libavresample-dev libpostproc-dev libswscale-dev libavfilter-dev
4.2.4.2 源码编译
修改后的版本提供了CMakeLists.txt文件，可以使用cmake进行编译
unzip ffvademo-master.zip
cd ffvademo-master
mkdir build
cd build
cmake ..
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- os is Linux
-- Configuring done
-- Generating done
-- Build files have been written to: /home/kylin/test/ffvademo-master/build
export LD_LIBRARY_PATH=/usr/local/lib
make -j8
Scanning dependencies of target ffvademo
[ 16%] Building C object CMakeFiles/ffvademo.dir/src/ffmpeg_utils.c.o
[ 16%] Building C object CMakeFiles/ffvademo.dir/src/ffvafilter.c.o
[ 25%] Building C object CMakeFiles/ffvademo.dir/src/ffvarenderer_drm.c.o
[ 33%] Building C object CMakeFiles/ffvademo.dir/src/ffvademo.c.o
[ 41%] Building C object CMakeFiles/ffvademo.dir/src/ffvadisplay.c.o
[ 50%] Building C object CMakeFiles/ffvademo.dir/src/ffvarenderer_x11.c.o
[ 58%] Building C object CMakeFiles/ffvademo.dir/src/ffvarenderer_egl.c.o
[ 66%] Building C object CMakeFiles/ffvademo.dir/src/ffvadecoder.c.o
/home/kylin/test/ffvademo-master/src/ffvademo.c:55:0: warning: "DEFAULT_RENDERER" redefined
#define DEFAULT_RENDERER FFVA_RENDERER_TYPE_X11
/home/kylin/test/ffvademo-master/src/ffvademo.c:52:0: note: this is the location of the previous definition
#define DEFAULT_RENDERER FFVA_RENDERER_TYPE_DRM
[ 75%] Building C object CMakeFiles/ffvademo.dir/src/ffvarenderer.c.o
[ 83%] Building C object CMakeFiles/ffvademo.dir/src/ffvasurface.c.o
[ 91%] Building C object CMakeFiles/ffvademo.dir/src/vaapi_utils.c.o
[100%] Linking C executable ffvademo
/usr/bin/ld: warning: libva.so.1, needed by /usr/lib/gcc/aarch64-linux-gnu/5/../../../aarch64-linux-gnu/libavcodec.so, may conflict with libva.so.2
[100%] Built target ffvademo
查看ffvademo的动态库依赖。这里就比较奇怪了，libva.so.2和libva.so.1都链接上去了。
根据之前编译的打印：warning: libva.so.1, needed by /usr/lib/gcc/aarch64-linux-gnu/5/../../../aarch64-linux-gnu/libavcodec.so, may conflict with libva.so.2
libva.so.1被链接上去的原因是libavcodec.so这个ffmpeg的库所需的
ldd ffvademo | grep libva
libva.so.2 => /usr/local/lib/libva.so.2 (0x0000007f7a567000)
libva-x11.so.2 => /usr/local/lib/libva-x11.so.2 (0x0000007f7927f000)
libva.so.1 => /usr/lib/aarch64-linux-gnu/libva.so.1 (0x0000007f78a48000)
还是试一下能否正常播放
./ffvademo /home/kylin/videos/3840x2160_60fps_Main_h264.mp4
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/local/lib/dri/XXX_drv_video.so
libva info: va_openDriver() returns -1
error: vaInitialize(): unknown libva error
[FFVADemo @ 0xe676370] failed to create VA display
播放失败了，想要完全屏蔽系统libva库的影响，还需要源码编译ffmpeg
4.2.4.3 原始版本编译错误记录
ffvademo-master/src/ffvarenderer_egl.c:29:10: fatal error: drm_fourcc.h: 没有那个文件或目录
29 | #include <drm_fourcc.h>
29 | #include <drm/drm_fourcc.h>
库文件位置变动，需要修改
ffvademo-master/src/ffvadecoder.c:389:40: error: ‘CODEC_CAP_DR1’ undeclared (first use in this function); did you mean ‘AV_CODEC_CAP_DR1’?
389 | if (!(avctx->codec->capabilities & CODEC_CAP_DR1))
389 | if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1))
ffmpeg版本相关，高版本需要如此修改
4.2.5 强行替换软链接测试（过程记录）
这里是一点邪恶的想法，如果强行替换libva.so.1的软链接，将直接链接到libva.so.2上，能否有效？
libva库1.7.0和2.1.0是否就真的不兼容？
以下操作有风险，谨慎操作
首先备份原来的软链接
sudo mv /usr/lib/aarch64-linux-gnu/libva.so.1.3900.0 /home/kylin/libva/libva.so.1.3900.0
sudo mv /usr/lib/aarch64-linux-gnu/libva-wayland.so.1.3900.0 /home/kylin/libva/libva-wayland.so.1.3900.0
sudo mv /usr/lib/aarch64-linux-gnu/libva-x11.so.1.3900.0 /home/kylin/libva/libva-x11.so.1.3900.0
sudo mv /usr/lib/aarch64-linux-gnu/libva-drm.so.1.3900.0 /home/kylin/libva/libva-drm.so.1.3900.0
拷贝自编译的libva相关库到系统路径下，创建新的libva.so.1软链接指向自编译的libva.so.2软链接上
sudo cp /usr/local/lib/libva* /usr/lib/aarch64-linux-gnu/
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva.so.2.100.0 /usr/lib/aarch64-linux-gnu/libva.so.2
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-wayland.so.2.100.0 /usr/lib/aarch64-linux-gnu/libva-wayland.so.2
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-x11.so.2.100.0 /usr/lib/aarch64-linux-gnu/libva-x11.so.2
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-drm.so.2.100.0 /usr/lib/aarch64-linux-gnu/libva-drm.so.2
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-glx.so.2.100.0 /usr/lib/aarch64-linux-gnu/libva-glx.so.2
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva.so.2 /usr/lib/aarch64-linux-gnu/libva.so.1
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-wayland.so.2 /usr/lib/aarch64-linux-gnu/libva-wayland.so.1
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-x11.so.2 /usr/lib/aarch64-linux-gnu/libva-x11.so.1
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-drm.so.2 /usr/lib/aarch64-linux-gnu/libva-drm.so.1
sudo ln -sf /usr/lib/aarch64-linux-gnu/libva-glx.so.2 /usr/lib/aarch64-linux-gnu/libva-glx.so.1
sudo ldconfig
查看一下链接状态
ll /usr/lib/aarch64-linux-gnu/ | grep libva
-rwxr-xr-x 1 root root 981 11月 30 15:35 libva-drm.la*
-rwxr-xr-x 1 root root 54568 11月 30 15:35 libva-drm.so*
lrwxrwxrwx 1 root root 41 11月 30 15:42 libva-drm.so.1 -> /usr/lib/aarch64-linux-gnu/libva-drm.so.2*
lrwxrwxrwx 1 root root 47 11月 30 15:42 libva-drm.so.2 -> /usr/lib/aarch64-linux-gnu/libva-drm.so.2.100.0*
-rwxr-xr-x 1 root root 54568 11月 30 15:35 libva-drm.so.2.100.0*
-rwxr-xr-x 1 root root 1036 11月 30 15:35 libva-glx.la*
-rwxr-xr-x 1 root root 91824 11月 30 15:35 libva-glx.so*
lrwxrwxrwx 1 root root 41 11月 30 15:42 libva-glx.so.1 -> /usr/lib/aarch64-linux-gnu/libva-glx.so.2*
lrwxrwxrwx 1 root root 47 11月 30 15:42 libva-glx.so.2 -> /usr/lib/aarch64-linux-gnu/libva-glx.so.2.100.0*
-rwxr-xr-x 1 root root 91824 11月 30 15:35 libva-glx.so.2.100.0*
-rwxr-xr-x 1 root root 927 11月 30 15:35 libva.la*
-rwxr-xr-x 1 root root 518344 11月 30 15:35 libva.so*
lrwxrwxrwx 1 root root 37 11月 30 15:42 libva.so.1 -> /usr/lib/aarch64-linux-gnu/libva.so.2*
lrwxrwxrwx 1 root root 43 11月 30 15:42 libva.so.2 -> /usr/lib/aarch64-linux-gnu/libva.so.2.100.0*
-rwxr-xr-x 1 root root 518344 11月 30 15:35 libva.so.2.100.0*
-rwxr-xr-x 1 root root 1022 11月 30 15:35 libva-wayland.la*
-rwxr-xr-x 1 root root 90464 11月 30 15:35 libva-wayland.so*
lrwxrwxrwx 1 root root 45 11月 30 15:42 libva-wayland.so.1 -> /usr/lib/aarch64-linux-gnu/libva-wayland.so.2*
lrwxrwxrwx 1 root root 51 11月 30 15:42 libva-wayland.so.2 -> /usr/lib/aarch64-linux-gnu/libva-wayland.so.2.100.0*
-rwxr-xr-x 1 root root 90464 11月 30 15:35 libva-wayland.so.2.100.0*
-rwxr-xr-x 1 root root 1003 11月 30 15:35 libva-x11.la*
-rwxr-xr-x 1 root root 179424 11月 30 15:35 libva-x11.so*
lrwxrwxrwx 1 root root 41 11月 30 15:42 libva-x11.so.1 -> /usr/lib/aarch64-linux-gnu/libva-x11.so.2*
lrwxrwxrwx 1 root root 47 11月 30 15:42 libva-x11.so.2 -> /usr/lib/aarch64-linux-gnu/libva-x11.so.2.100.0*
-rwxr-xr-x 1 root root 179424 11月 30 15:35 libva-x11.so.2.100.0*
用vainfo，看一下打印信息。发现存在部分<unknown profile>。
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
vainfo
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'XXX'
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/XXX_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.1 (libva 1.7.0)
vainfo: Driver version: XX XXX driver for XX XXXX Encoder XXENC V6.2 /Decoder XXDEC - 1.1.2
vainfo: Supported profile and entrypoints
VAProfileH264Baseline : VAEntrypointVLD
VAProfileH264Baseline : VAEntrypointEncSlice
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
<unknown profile> : VAEntrypointVLD
<unknown profile> : VAEntrypointEncSlice
VAProfileH264MultiviewHigh : VAEntrypointVLD
VAProfileH264StereoHigh : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointEncSlice
<unknown profile> : VAEntrypointVLD
<unknown profile> : VAEntrypointEncSlice
VAProfileHEVCMain10 : VAEntrypointVLD
用mpv试试。段错误了，还是不太行。还是得源码编译ffmpeg
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
mpv --vo=vaapi --hwdec=vaapi 3840x2160_60fps_Main_h264.mp4
Playing: 3840x2160_60fps_Main_h264.mp4
(+) Video --vid=1 (*) (h264)
(+) Audio --aid=1 --alang=und (*) (aac)
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'XXX'
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/XXX_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
*** Error in `mpv': malloc(): memory corruption: 0x0000007f84331e10 ***
已放弃 (核心已转储)
4.3 源码编译ffmpeg
github仓库地址：github.com/FFmpeg/FFmp…
将源码包FFmpeg-n4.2.2.tar.gz拷贝到系统中，解压并进入解压后的路径内。
tar -xvf FFmpeg-n4.2.2.tar.gz
cd FFmpeg-n4.2.2
编译时使用的是自编译的libva库，需要注意指定PKG_CONFIG的路径
利用configure进行依赖检测以及生成MakeFile文件，执行命令：./configure --enable-debug --enable-shared
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
./configure --enable-debug --enable-shared
install prefix /usr/local
source path .
C compiler gcc
C library glibc
ARCH aarch64 (generic)
big-endian no
runtime cpu detection yes
NEON enabled yes
VFP enabled yes
debug symbols yes
strip symbols yes
optimize for size no
optimizations yes
static yes
shared yes
postprocessing support no
network support yes
threading support pthreads
safe bitstream reader yes
texi2html enabled no
perl enabled yes
pod2man enabled yes
makeinfo enabled no
makeinfo supports HTML no
External libraries:
alsa iconv libxcb libxcb_shape libxcb_xfixes xlib zlib
External libraries providing hardware acceleration:
v4l2_m2m vaapi
Libraries:
avcodec avdevice avfilter avformat avutil swresample swscale
Programs:
ffmpeg ffprobe
Enabled decoders:
aac anm dsd_lsbf h264_v4l2m2m mpc7 pcm_s64le sgirle vmdaudio
aac_fixed ansi dsd_lsbf_planar hap mpc8 pcm_s8 sheervideo vmdvideo
aac_latm ape dsd_msbf hcom mpeg1_v4l2m2m pcm_s8_planar shorten vmnc
aasc apng dsd_msbf_planar hevc mpeg1video pcm_u16be sipr vorbis
ac3 aptx dsicinaudio hnm4_video mpeg2_v4l2m2m pcm_u16le smackaud vp3
ac3_fixed aptx_hd dsicinvideo hq_hqa mpeg2video pcm_u24be smacker vp4
adpcm_4xm arbc dss_sp hqx mpeg4 pcm_u24le smc vp5
adpcm_adx ass dst huffyuv mpeg4_v4l2m2m pcm_u32be smvjpeg vp6
adpcm_afc asv1 dvaudio hymt mpegvideo pcm_u32le snow vp6a
adpcm_agm asv2 dvbsub iac mpl2 pcm_u8 sol_dpcm vp6f
adpcm_aica atrac1 dvdsub idcin msa1 pcm_vidc sonic vp7
adpcm_ct atrac3 dvvideo idf mscc pcm_zork sp5x vp8
adpcm_dtk atrac3al dxa iff_ilbm msmpeg4v1 pcx speedhq vp8_v4l2m2m
adpcm_ea atrac3p dxtory ilbc msmpeg4v2 pgm srgc vp9
adpcm_ea_maxis_xa atrac3pal dxv imc msmpeg4v3 pgmyuv srt vplayer
adpcm_ea_r1 atrac9 eac3 imm4 msrle pgssub ssa vqa
adpcm_ea_r2 aura eacmv indeo2 mss1 pictor stl wavpack
adpcm_ea_r3 aura2 eamad indeo3 mss2 pixlet subrip wcmv
adpcm_ea_xas avrn eatgq indeo4 msvideo1 pjs subviewer webp
adpcm_g722 avrp eatgv indeo5 mszh png subviewer1 webvtt
adpcm_g726 avs eatqi interplay_acm mts2 ppm sunrast wmalossless
adpcm_g726le avui eightbps interplay_dpcm mvc1 prores svq1 wmapro
adpcm_ima_amv ayuv eightsvx_exp interplay_video mvc2 prosumer svq3 wmav1
adpcm_ima_apc bethsoftvid eightsvx_fib jacosub mwsc psd tak wmav2
adpcm_ima_dat4 bfi escape124 jpeg2000 mxpeg ptx targa wmavoice
adpcm_ima_dk3 bink escape130 jpegls nellymoser qcelp targa_y216 wmv1
adpcm_ima_dk4 binkaudio_dct evrc jv nuv qdm2 tdsc wmv2
adpcm_ima_ea_eacs binkaudio_rdft exr kgv1 on2avc qdmc text wmv3
adpcm_ima_ea_sead bintext ffv1 kmvc opus qdraw theora wmv3image
adpcm_ima_iss bitpacked ffvhuff lagarith paf_audio qpeg thp wnv1
adpcm_ima_oki bmp ffwavesynth loco paf_video qtrle tiertexseqvideo wrapped_avframe
adpcm_ima_qt bmv_audio fic lscr pam r10k tiff ws_snd1
adpcm_ima_rad bmv_video fits m101 pbm r210 tmv xan_dpcm
adpcm_ima_smjpeg brender_pix flac mace3 pcm_alaw ra_144 truehd xan_wc3
adpcm_ima_wav c93 flashsv mace6 pcm_bluray ra_288 truemotion1 xan_wc4
adpcm_ima_ws cavs flashsv2 magicyuv pcm_dvd ralf truemotion2 xbin
adpcm_ms ccaption flic mdec pcm_f16le rasc truemotion2rt xbm
adpcm_mtaf cdgraphics flv metasound pcm_f24le rawvideo truespeech xface
adpcm_psx cdxl fmvc microdvd pcm_f32be realtext tscc xl
adpcm_sbpro_2 cfhd fourxm mimic pcm_f32le rl2 tscc2 xma1
adpcm_sbpro_3 cinepak fraps mjpeg pcm_f64be roq tta xma2
adpcm_sbpro_4 clearvideo frwu mjpegb pcm_f64le roq_dpcm twinvq xpm
adpcm_swf cljr g2m mlp pcm_lxf rpza txd xsub
adpcm_thp cllc g723_1 mmvideo pcm_mulaw rscc ulti xwd
adpcm_thp_le comfortnoise g729 motionpixels pcm_s16be rv10 utvideo y41p
adpcm_vima cook gdv movtext pcm_s16be_planar rv20 v210 ylc
adpcm_xa cpia gif mp1 pcm_s16le rv30 v210x yop
adpcm_yamaha cscd gremlin_dpcm mp1float pcm_s16le_planar rv40 v308 yuv4
agm cyuv gsm mp2 pcm_s24be s302m v408 zero12v
aic dca gsm_ms mp2float pcm_s24daud sami v410 zerocodec
alac dds h261 mp3 pcm_s24le sanm vb zlib
alias_pix dfa h263 mp3adu pcm_s24le_planar sbc vble zmbv
als dirac h263_v4l2m2m mp3adufloat pcm_s32be scpr vc1
amrnb dnxhd h263i mp3float pcm_s32le screenpresso vc1_v4l2m2m
amrwb dolby_e h263p mp3on4 pcm_s32le_planar sdx2_dpcm vc1image
amv dpx h264 mp3on4float pcm_s64be sgi vcr1
Enabled encoders:
a64multi asv1 flashsv2 mp2fixed pcm_s16be_planar pcm_vidc snow vp8_vaapi
a64multi5 asv2 flv mpeg1video pcm_s16le pcx sonic vp9_vaapi
aac avrp g723_1 mpeg2_vaapi pcm_s16le_planar pgm sonic_ls wavpack
ac3 avui gif mpeg2video pcm_s24be pgmyuv srt webvtt
ac3_fixed ayuv h261 mpeg4 pcm_s24daud png ssa wmav1
adpcm_adx bmp h263 mpeg4_v4l2m2m pcm_s24le ppm subrip wmav2
adpcm_g722 cinepak h263_v4l2m2m msmpeg4v2 pcm_s24le_planar prores sunrast wmv1
adpcm_g726 cljr h263p msmpeg4v3 pcm_s32be prores_aw svq1 wmv2
adpcm_g726le comfortnoise h264_v4l2m2m msvideo1 pcm_s32le prores_ks targa wrapped_avframe
adpcm_ima_qt dca h264_vaapi nellymoser pcm_s32le_planar qtrle text xbm
adpcm_ima_wav dnxhd hevc_vaapi opus pcm_s64be r10k tiff xface
adpcm_ms dpx huffyuv pam pcm_s64le r210 truehd xsub
adpcm_swf dvbsub jpeg2000 pbm pcm_s8 ra_144 tta xwd
adpcm_yamaha dvdsub jpegls pcm_alaw pcm_s8_planar rawvideo utvideo y41p
alac dvvideo ljpeg pcm_dvd pcm_u16be roq v210 yuv4
alias_pix eac3 magicyuv pcm_f32be pcm_u16le roq_dpcm v308 zlib
amv ffv1 mjpeg pcm_f32le pcm_u24be rv10 v408 zmbv
apng ffvhuff mjpeg_vaapi pcm_f64be pcm_u24le rv20 v410
aptx fits mlp pcm_f64le pcm_u32be s302m vc2
aptx_hd flac movtext pcm_mulaw pcm_u32le sbc vorbis
ass flashsv mp2 pcm_s16be pcm_u8 sgi vp8_v4l2m2m
Enabled hwaccels:
h263_vaapi hevc_vaapi mpeg2_vaapi vc1_vaapi vp9_vaapi
h264_vaapi mjpeg_vaapi mpeg4_vaapi vp8_vaapi wmv3_vaapi
Enabled parsers:
aac bmp dpx g723_1 h264 mpegvideo sbc vp8
aac_latm cavsvideo dvaudio g729 hevc opus sipr vp9
ac3 cook dvbsub gif mjpeg png tak xma
adx dca dvd_nav gsm mlp pnm vc1
av1 dirac dvdsub h261 mpeg4video rv30 vorbis
avs2 dnxhd flac h263 mpegaudio rv40 vp3
Enabled demuxers:
aa bit flic image_j2k_pipe matroska paf rtp truehd
aac bmv flv image_jpeg_pipe mgsts pcm_alaw rtsp tta
ac3 boa fourxm image_jpegls_pipe microdvd pcm_f32be s337m tty
acm brstm frm image_pam_pipe mjpeg pcm_f32le sami txd
act c93 fsb image_pbm_pipe mjpeg_2000 pcm_f64be sap ty
adf caf g722 image_pcx_pipe mlp pcm_f64le sbc v210
adp cavsvideo g723_1 image_pgm_pipe mlv pcm_mulaw sbg v210x
ads cdg g726 image_pgmyuv_pipe mm pcm_s16be scc vag
adx cdxl g726le image_pictor_pipe mmf pcm_s16le sdp vc1
aea cine g729 image_png_pipe mov pcm_s24be sdr2 vc1t
afc codec2 gdv image_ppm_pipe mp3 pcm_s24le sds vividas
aiff codec2raw genh image_psd_pipe mpc pcm_s32be sdx vivo
aix concat gif image_qdraw_pipe mpc8 pcm_s32le segafilm vmd
amr data gsm image_sgi_pipe mpegps pcm_s8 ser vobsub
amrnb daud gxf image_sunrast_pipe mpegts pcm_u16be shorten voc
amrwb dcstr h261 image_svg_pipe mpegtsraw pcm_u16le siff vpk
anm dfa h263 image_tiff_pipe mpegvideo pcm_u24be sln vplayer
apc dhav h264 image_webp_pipe mpjpeg pcm_u24le smacker vqf
ape dirac hcom image_xpm_pipe mpl2 pcm_u32be smjpeg w64
apng dnxhd hevc image_xwd_pipe mpsub pcm_u32le smush wav
aptx dsf hls ingenient msf pcm_u8 sol wc3
aptx_hd dsicin hnm ipmovie msnwc_tcp pcm_vidc sox webm_dash_manifest
aqtitle dss ico ircam mtaf pjs spdif webvtt
asf dts idcin iss mtv pmp srt wsaud
asf_o dtshd idf iv8 musx pva stl wsd
ass dv iff ivf mv pvf str wsvqa
ast dvbsub ifv ivr mvi qcp subviewer wtv
au dvbtxt ilbc jacosub mxf r3d subviewer1 wv
avi dxa image2 jv mxg rawvideo sup wve
avr ea image2_alias_pix kux nc realtext svag xa
avs ea_cdata image2_brender_pix live_flv nistsphere redspark swf xbin
avs2 eac3 image2pipe lmlm4 nsp rl2 tak xmv
bethsoftvid epaf image_bmp_pipe loas nsv rm tedcaptions xvag
bfi ffmetadata image_dds_pipe lrc nut roq thp xwma
bfstm filmstrip image_dpx_pipe lvf nuv rpl threedostr yop
bink fits image_exr_pipe lxf ogg rsd tiertexseq yuv4mpegpipe
bintext flac image_gif_pipe m4v oma rso tmv
Enabled muxers:
a64 codec2raw g722 ivf mpeg2svcd pcm_s16be rtp_mpegts tta
ac3 crc g723_1 jacosub mpeg2video pcm_s16le rtsp uncodedframecrc
adts dash g726 latm mpeg2vob pcm_s24be sap vc1
adx data g726le lrc mpegts pcm_s24le sbc vc1t
aiff daud gif m4v mpjpeg pcm_s32be scc voc
amr dirac gsm matroska mxf pcm_s32le segafilm w64
apng dnxhd gxf matroska_audio mxf_d10 pcm_s8 segment wav
aptx dts h261 md5 mxf_opatom pcm_u16be singlejpeg webm
aptx_hd dv h263 microdvd null pcm_u16le smjpeg webm_chunk
asf eac3 h264 mjpeg nut pcm_u24be smoothstreaming webm_dash_manifest
asf_stream f4v hash mkvtimestamp_v2 oga pcm_u24le sox webp
ass ffmetadata hds mlp ogg pcm_u32be spdif webvtt
ast fifo hevc mmf ogv pcm_u32le spx wtv
au fifo_test hls mov oma pcm_u8 srt wv
avi filmstrip ico mp2 opus pcm_vidc stream_segment yuv4mpegpipe
avm2 fits ilbc mp3 pcm_alaw psp sup
avs2 flac image2 mp4 pcm_f32be rawvideo swf
bit flv image2pipe mpeg1system pcm_f32le rm tee
caf framecrc ipod mpeg1vcd pcm_f64be roq tg2
cavsvideo framehash ircam mpeg1video pcm_f64le rso tgp
codec2 framemd5 ismv mpeg2dvd pcm_mulaw rtp truehd
Enabled protocols:
async data gopher icecast pipe rtp tee
cache ffrtmphttp hls md5 prompeg srtp udp
concat file http mmsh rtmp subfile udplite
crypto ftp httpproxy mmst rtmpt tcp unix
Enabled filters:
abench anequalizer channelmap detelecine hdcd minterpolate scale_vaapi superequalizer
abitscope anlmdn channelsplit dilation headphone mix select surround
acompressor anoisesrc chorus displace hflip movie selectivecolor swaprect
acontrast anull chromahold doubleweave highpass negate sendcmd swapuv
acopy anullsink chromakey drawbox highshelf nlmeans separatefields tblend
acrossfade anullsrc chromashift drawgraph hilbert noformat setdar telecine
acrossover apad ciescope drawgrid histogram noise setfield testsrc
acrusher aperms codecview drmeter hqx normalize setparams testsrc2
acue aphasemeter color dynaudnorm hstack null setpts threshold
adeclick aphaser colorbalance earwax hue nullsink setrange thumbnail
adeclip apulsator colorchannelmixer ebur128 hwdownload nullsrc setsar tile
adelay arealtime colorhold edgedetect hwmap oscilloscope settb tlut2
aderivative aresample colorkey elbg hwupload overlay sharpness_vaapi tmix
adrawgraph areverse colorlevels entropy hysteresis pad showcqt tonemap
aecho aselect colorspace equalizer idet pal100bars showfreqs tpad
aemphasis asendcmd compand erosion il pal75bars showinfo transpose
aeval asetnsamples compensationdelay extractplanes inflate palettegen showpalette transpose_vaapi
aevalsrc asetpts concat extrastereo interleave paletteuse showspatial treble
afade asetrate convolution fade join pan showspectrum tremolo
afftdn asettb convolve fftdnoiz lagfun perms showspectrumpic trim
afftfilt ashowinfo copy fftfilt lenscorrection pixdesctest showvolume unpremultiply
afifo asidedata crop field life pixscope showwaves unsharp
afir asoftclip crossfeed fieldhint limiter premultiply showwavespic vectorscope
aformat asplit crystalizer fieldmatch loop prewitt shuffleframes vflip
agate astats cue fieldorder loudnorm procamp_vaapi shuffleplanes vfrdet
agraphmonitor astreamselect curves fifo lowpass pseudocolor sidechaincompress vibrance
ahistogram atadenoise datascope fillborders lowshelf psnr sidechaingate vibrato
aiir atempo dcshift firequalizer lumakey qp sidedata vignette
aintegral atrim dctdnoiz flanger lut random signalstats vmafmotion
ainterleave avectorscope deband floodfill lut1d readeia608 silencedetect volume
alimiter avgblur deblock format lut2 readvitc silenceremove volumedetect
allpass bandpass decimate fps lut3d realtime sinc vstack
allrgb bandreject deconvolve framepack lutrgb remap sine w3fdif
allyuv bass dedot framerate lutyuv removegrain smptebars waveform
aloop bbox deesser framestep mandelbrot removelogo smptehdbars weave
alphaextract bench deflate freezedetect maskedclamp replaygain sobel xbr
alphamerge biquad deflicker gblur maskedmerge reverse spectrumsynth xmedian
amerge bitplanenoise deinterlace_vaapi gradfun maskfun rgbashift split xstack
ametadata blackdetect dejudder graphmonitor mcompand rgbtestsrc sr yadif
amix blend denoise_vaapi greyedge mergeplanes roberts ssim yuvtestsrc
amovie bm3d derain haas mestimate rotate stereotools zoompan
amplify bwdif deshake haldclut metadata scale stereowiden
amultiply cellauto despill haldclutsrc midequalizer scale2ref streamselect
Enabled bsfs:
aac_adtstoasc dump_extradata h264_mp4toannexb imx_dump_header mpeg2_metadata remove_extradata vp9_raw_reorder
av1_frame_split eac3_core h264_redundant_pps mjpeg2jpeg mpeg4_unpack_bframes text2movsub vp9_superframe
av1_metadata extract_extradata hapqa_extract mjpega_dump_header noise trace_headers vp9_superframe_split
chomp filter_units hevc_metadata mov2textsub null truehd_core
dca_core h264_metadata hevc_mp4toannexb mp3_header_decompress prores_metadata vp9_metadata
Enabled indevs:
alsa fbdev lavfi oss v4l2 xcbgrab
Enabled outdevs:
alsa fbdev oss v4l2 xv
License: LGPL version 2.1 or later
编译，执行命令：make -j8，打印比较多，这里就不放了。
安装，执行命令：sudo make install，同样打印比较多，这里就不放了。
检查是否安装成功，vaapi加速是否支持，执行命令：ffmpeg -hwaccels
make -j8
sudo make install
sudo ldconfig
ffmpeg -hwaccels
built with gcc 5.4.0 (Ubuntu/Linaro 5.4.0-6kord1~16.04.12) 20160609
configuration: --enable-debug --enable-shared
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
Hardware acceleration methods:
vaapi
4.3.1 ffvademo验证（过程记录）
编译时使用的是自编译的ffmpeg、libva库，需要注意指定PKG_CONFIG的路径
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
编译过程不再赘述，直接来到验证过程
./ffvademo /home/kylin/videos/3840x2160_60fps_Main_h264.mp4
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/XXX_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/kylin/videos/3840x2160_60fps_Main_h264.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.48.100
Duration: 00:03:59.17, start: 0.000000, bitrate: 47385 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], 47251 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
[h264 @ 0x2567f4b0] Using deprecated struct vaapi_context in decode.
pci id for fd 8: 0731:9230, driver (null)
libEGL warning: DRI3: No driver found
pci id for fd 8: 0731:9230, driver (null)
libEGL warning: DRI2: failed to open XXX (search paths /usr/lib/aarch64-linux-gnu/dri:${ORIGIN}/dri:/usr/lib/dri)
compile failed error info : ▒▒▒& .
./src/XXX_egl_opengl_display.c:1129:videoDraw() ERROR display video error !
观察这两行打印是没找到驱动？
0731:9230, driver (null) libEGL warning: DRI3: No driver found
看一下ffvademo的EGL程序的动态库依赖
ldd ffvademo | grep EGL
libEGL.so.1 => /usr/lib/aarch64-linux-gnu/mesa-egl/libEGL.so.1 (0x0000007f9efc5000)
链接到了mesa的库，正常应该链接到XXX的库，指定一下lib库有限查找的地址
export LD_LIBRARY_PATH=/usr/lib/aarch64-linux-gnu/XXXX
ldd ffvademo | grep EGL
libEGL.so.1 => /usr/lib/aarch64-linux-gnu/XXX/libEGL.so.1 (0x0000007fa4d91000)
再播放试试，已经能够正常播放了
export LD_LIBRARY_PATH=/usr/lib/aarch64-linux-gnu/XXXX
./ffvademo /home/kylin/videos/3840x2160_60fps_Main_h264.mp4
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/XXX_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/kylin/videos/3840x2160_60fps_Main_h264.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.48.100
Duration: 00:03:59.17, start: 0.000000, bitrate: 47385 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], 47251 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
[h264 @ 0x1b903f0] Using deprecated struct vaapi_context in decode.
4.4 源码编译mpv（可选）
github仓库地址：github.com/mpv-player/…
将源码包mpv-0.32.0-Waf.tar.gz拷贝到系统中，解压并进入解压后的路径内。
mpv需要使用waf工具进行编译，默认版本需要联网下载waf
tar -xvf mpv-0.32.0-Waf.tar.gz
cd mpv-0.32.0
需要提前安装的相关依赖库
sudo apt install liblua5.1-0-dev libass-dev libbluray-dev libuchardet-dev librubberband-dev liblcms2-dev libpulse-dev libalsa-ocaml-dev libgbm-dev libx11-dev libxinerama-dev libxv-dev x11proto-scrnsaver-dev libxss-dev libcaca-dev libxrandr-dev libxtst-dev libxi-dev
# 实际安装的库(80个包)
apt download libncurses5 libtinfo5 libncursesw5 liblua5.1-0 libtinfo-dev libreadline6-dev libreadline-dev liblua5.1-0-dev libtool-bin libexpat1 libexpat1-dev libpng12-0 libfreetype6 libpng12-dev libfreetype6-dev libfontconfig1-dev libfribidi-dev libharfbuzz-gobject0 libharfbuzz-dev libass-dev libbluray-dev libuchardet0 libuchardet-dev librubberband-dev liblcms2-dev libglib2.0-0 libpcre3-dev libpcre32-3 libpcrecpp0v5 libpcre16-3 libpcre3 libglib2.0-bin libglib2.0-dev libpulsedsp pulseaudio-utils pulseaudio-module-bluetooth pulseaudio libpulse-mainloop-glib0 libpulse0 libpulse-dev ocaml-base-nox libncurses5-dev ocaml-compiler-libs ocaml-interp ocaml-nox libcamlp4-ocaml-dev camlp4 ledit libalsa-ocaml libasound2-dev libfindlib-ocaml ocaml-findlib libalsa-ocaml-dev libfindlib-ocaml-dev libegl1-mesa-dev libwayland-egl1-mesa libegl1-mesa libgbm1 libgl1-mesa-dri libgbm-dev libx11-6 libx11-dev x11proto-xinerama-dev libxinerama-dev libxv1 x11proto-video-dev libxv-dev x11proto-scrnsaver-dev libxss-dev libcaca0 libslang2-dev libcaca-dev libxrandr-dev libxrandr2 libxrender-dev x11proto-randr-dev x11proto-render-dev libxi-dev libxtst-dev x11proto-record-dev
编译时使用的是自编译的ffmpeg、libva库，需要注意指定PKG_CONFIG的路径
利用waf进行依赖检测以及生成MakeFile文件，执行命令：./waf configure --enable-libmpv-shared
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
export LD_LIBRARY_PATH=/usr/lib/aarch64-linux-gnu/XXXX
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
./waf configure --enable-libmpv-shared
Setting top to : /home/kylin/mpv/mpv-0.32.0
Setting out to : /home/kylin/mpv/mpv-0.32.0/build
Checking for waf version in 1.8.4-2.1.0 : ok
Checking for program 'cc' : /usr/bin/cc
Checking for program 'pkg-config' : /usr/bin/pkg-config
Checking for program 'ar' : /usr/bin/ar
Checking for program 'rst2html' : not found
Checking for program 'rst2man' : not found
Checking for program 'rst2pdf' : not found
Checking for program 'windres' : not found
Checking for program 'perl' : /usr/bin/perl
Checking for 'gcc' (C compiler) : /usr/bin/cc
Detected target OS: : os-linux
Checking for compiler flags -std=c11 : yes
Checking for compiler flags -Werror -Werror=implicit-function-declaration : yes
Checking for compiler flags -Werror -Wno-error=deprecated-declarations : yes
Checking for compiler flags -Werror -Wno-error=unused-function : yes
Checking for compiler flags -Werror -Wempty-body : yes
Checking for compiler flags -Werror -Wdisabled-optimization : yes
Checking for compiler flags -Werror -Wstrict-prototypes : yes
Checking for compiler flags -Werror -Wno-format-zero-length : yes
Checking for compiler flags -Werror -Werror=format-security : yes
Checking for compiler flags -Werror -Wno-redundant-decls : yes
Checking for compiler flags -Werror -Wvla : yes
Checking for compiler flags -Werror -Wno-format-truncation : yes
Checking for compiler flags -Werror -Wimplicit-fallthrough : no
Checking for LGPL (version 2.1 or later) build : disabled
Checking for GPL (version 2 or later) build : yes
Checking for mpv CLI player : yes
Checking for shared library : yes
Checking for static library : disabled
Checking for static build : disabled
Checking for whether to include binary compile time : yes
Checking for whether to optimize : yes
Checking for whether to compile-in debugging information : yes
Checking for unit tests (development only) : disabled
Checking for enable ta leak report by default (development only) : disabled
Checking for manpage generation : no (missing RST2MAN)
Checking for html manual generation : disabled
Checking for pdf manual generation : disabled
Checking for dynamic loader : yes
Checking for C plugins : yes
Checking for inline assembly (currently without effect) : yes
Checking for generate a clang compilation database : disabled
Checking for static Swift linking : disabled
Checking for compiler support for noexecstack : yes
Checking for linker support for --nxcompat --no-seh --dynamicbase : no
Checking for -lm : yes
Checking for MinGW : os-win32 not found
Checking for POSIX environment : yes
Checking for Android environment : no
Checking for tvOS environment : no
Checking for Android EGL support : android not found
Checking for development environment : yes
Checking for macOS Swift build tools : os-darwin not found
Checking for Universal Windows Platform : disabled
Checking for win32 desktop APIs : os-win32 not found
Checking for internal pthread wrapper for win32 (Vista+) : posix found
Checking for POSIX threads : yes
Checking for GNU C extensions : yes
Checking for stdatomic.h : yes
Checking for C11 aligned_alloc() : yes
Checking for stdatomic.h support or slow emulation : yes
Checking for linking with -lrt : yes
Checking for iconv : yes
Checking for w32/dos paths : os-win32 not found
Checking for spawnp()/kill() POSIX support : yes
Checking for spawnp()/kill() Android replacement : posix-spawn-native found
Checking for any spawnp()/kill() support : yes
Checking for Windows pipe support : posix found
Checking for glob() POSIX support : yes
Checking for glob() win32 replacement : posix found
Checking for any glob() support : yes
Checking for fchmod() : yes
Checking for vt.h : yes
Checking for gbm.h : yes
Checking for GLIBC API for setting thread name : yes
Checking for OSX API for setting thread name : glibc-thread-name found
Checking for BSD API for setting thread name : glibc-thread-name found
Checking for BSD's fstatfs() : no
Checking for Linux's fstatfs() : yes
Checking for Linux's memfd_create() : no
Checking for Samba support (makes mpv GPLv3) : disabled
Checking for Lua : yes (version found: 51obsd)
Checking for Javascript (MuJS backend) : no ('mujs >= 1.0.0' not found)
Checking for SSA/ASS support : yes
Checking for libass OSD support : yes
Checking for dummy OSD support : libass-osd found
Checking for zlib : yes
Checking for Bluray support : yes
Checking for dvdnav support : disabled
Checking for cdda support (libcdio) : disabled
Checking for uchardet support : yes
Checking for librubberband support : yes
Checking for libzimg support (high quality software scaler) : no ('zimg >= 2.9' not found)
Checking for LCMS2 support : yes
Checking for VapourSynth filter bridge : no ('vapoursynth >= 24 vapoursynth-script >= 23' not found)
Checking for libarchive wrapper for reading zip files and more : no ('libarchive >= 3.4.0' not found)
Checking for DVB input module : disabled
Checking for SDL2 : disabled
Checking for SDL2 gamepad input : sdl2 not found
Checking for FFmpeg/Libav present : yes
Checking for FFmpeg/Libav libavutil present : yes
Checking for libav* is FFmpeg : yes
Checking for libav* is Libav : no
Checking for Libav/FFmpeg library versions : yes
Checking for libavdevice : yes
Checking for Disable all known FFmpeg ABI violations : disabled
Checking for SDL2 audio output : sdl2 not found
Checking for OSS : yes
Checking for RSound audio output : no
Checking for sndio audio input/output : disabled
Checking for PulseAudio audio output : yes
Checking for JACK audio output : no ('jack' not found)
Checking for OpenAL audio output : disabled
Checking for OpenSL ES audio output : no
Checking for ALSA audio output : yes
Checking for CoreAudio audio output : no
Checking for AudioUnit output for iOS : no
Checking for WASAPI audio output : os-win32 not found
Checking for SDL2 video output : sdl2 not found
Checking for Cocoa : no
Checking for DRM : yes
Checking for DRM Prime ffmpeg support : yes
Checking for GBM : yes
Checking for wayland-scanner : yes
Checking for wayland-protocols : no ('wayland-protocols >= 1.15' not found)
Checking for Wayland : wayland-protocols not found
Checking for X11 : yes
Checking for Xv video output : yes
Checking for OpenGL Cocoa Backend : cocoa not found
Checking for OpenGL X11 Backend : yes
Checking for EGL 1.4 : yes
Checking for OpenGL X11 EGL Backend : yes
Checking for OpenGL DRM EGL Backend : yes
Checking for OpenGL Wayland Backend : wayland not found
Checking for OpenGL Win32 Backend : win32-desktop not found
Checking for OpenGL/DirectX Interop Backend : gl-win32 not found
Checking for OpenGL ANGLE headers : os-win32 not found
Checking for OpenGL Win32 ANGLE Library : egl-angle not found
Checking for OpenGL Win32 ANGLE Backend : egl-angle not found
Checking for VDPAU acceleration : no ('vdpau >= 0.2' not found)
Checking for VDPAU with OpenGL/X11 : vdpau not found
Checking for VAAPI acceleration : yes
Checking for VAAPI (X11 support) : yes
Checking for VAAPI (Wayland support) : gl-wayland not found
Checking for VAAPI (DRM/EGL support) : yes
Checking for VAAPI EGL on X11 : yes
Checking for VAAPI EGL : yes
Checking for CACA : yes
Checking for JPEG support : yes
Checking for Direct3D support : win32-desktop not found
Checking for libshaderc SPIR-V compiler (shared library) : no
Checking for libshaderc SPIR-V compiler (static library) : no
Checking for libshaderc SPIR-V compiler : shaderc-shared not found
Checking for SPIRV-Cross SPIR-V shader converter (shared library) : no ('spirv-cross-c-shared' not found)
Checking for SPIRV-Cross SPIR-V shader converter (static library) : no ('spirv-cross' not found)
Checking for SPIRV-Cross SPIR-V shader converter : spirv-cross-shared not found
Checking for Direct3D 11 video output : win32-desktop not found
Checking for Raspberry Pi support : no ('brcmegl' not found)
Checking for iOS OpenGL ES hardware decoding interop support : no
Checking for OpenGL without platform-specific code (e.g. for libmpv) : yes
Checking for OpenGL context support : yes
Checking for libplacebo support : no ('libplacebo >= 1.18.0' not found)
Checking for Vulkan context support : libplacebo not found
Checking for VAAPI Vulkan : vulkan not found
Checking for EGL helper functions : yes
Checking for libavcodec videotoolbox hwaccel : gl-cocoa not found
Checking for Videotoolbox with OpenGL : gl-cocoa not found
Checking for D3D11VA hwaccel : os-win32 not found
Checking for DXVA2 hwaccel : d3d-hwaccel not found
Checking for OpenGL/DirectX Interop Backend DXVA2 interop : gl-dxinterop not found
Checking for CUDA Headers and dynamic loader : no ('ffnvcodec >= 8.2.15.7' not found)
Checking for CUDA acceleration : ffnvcodec not found
Checking for CUDA with graphics interop : cuda-hwaccel not found
Checking for Raspberry Pi MMAL hwaccel : rpi not found
Checking for w32 executable : os-win32 not found
Checking for macOS Touch Bar support : cocoa not found
Checking for macOS 10.11 SDK Features : cocoa not found
Checking for macOS 10.12.2 SDK Features : cocoa not found
Checking for macOS 10.14 SDK Features : cocoa not found
Checking for macOS Media Player support : macos-10-12-2-features not found
Checking for macOS libmpv backend : cocoa not found
Writing configuration header: : config.h
'configure' finished successfully (3.129s)
编译，执行命令：./waf build，打印比较多，这里就不放了。
安装，执行命令：sudo ./waf install
sudo ./waf install
Waf: Entering directory `/home/kylin/mpv/mpv-0.32.0/build'
[1/1] Compiling version.sh
+ install /usr/local/bin/mpv (from build/mpv)
+ install /usr/local/share/doc/mpv/input.conf (from etc/input.conf)
+ install /usr/local/share/doc/mpv/mpv.conf (from etc/mpv.conf)
+ install /usr/local/share/doc/mpv/mplayer-input.conf (from etc/mplayer-input.conf)
+ install /usr/local/share/doc/mpv/restore-old-bindings.conf (from etc/restore-old-bindings.conf)
+ symlink /usr/local/lib/libmpv.so (to libmpv.so.1.107.0)
+ install /usr/local/lib/libmpv.so.1.107.0 (from build/libmpv.so)
+ symlink /usr/local/lib/libmpv.so.1 (to libmpv.so.1.107.0)
+ install /usr/local/include/mpv/client.h (from libmpv/client.h)
+ install /usr/local/include/mpv/qthelper.hpp (from libmpv/qthelper.hpp)
+ install /usr/local/include/mpv/opengl_cb.h (from libmpv/opengl_cb.h)
+ install /usr/local/include/mpv/render.h (from libmpv/render.h)
+ install /usr/local/include/mpv/render_gl.h (from libmpv/render_gl.h)
+ install /usr/local/include/mpv/stream_cb.h (from libmpv/stream_cb.h)
+ install /usr/local/lib/pkgconfig/mpv.pc (from build/libmpv/mpv.pc)
+ install /usr/local/share/zsh/site-functions/_mpv (from etc/_mpv.zsh)
+ install /usr/local/share/applications/mpv.desktop (from etc/mpv.desktop)
+ install /usr/local/share/bash-completion/completions/mpv (from etc/mpv.bash-completion)
+ install /usr/local/share/icons/hicolor/16x16/apps/mpv.png (from etc/mpv-icon-8bit-16x16.png)
+ install /usr/local/etc/mpv/encoding-profiles.conf (from etc/encoding-profiles.conf)
+ install /usr/local/share/icons/hicolor/32x32/apps/mpv.png (from etc/mpv-icon-8bit-32x32.png)
+ install /usr/local/share/icons/hicolor/64x64/apps/mpv.png (from etc/mpv-icon-8bit-64x64.png)
+ install /usr/local/share/icons/hicolor/scalable/apps/mpv.svg (from etc/mpv-gradient.svg)
+ install /usr/local/share/icons/hicolor/symbolic/apps/mpv-symbolic.svg (from etc/mpv-symbolic.svg)
Waf: Leaving directory `/home/kylin/mpv/mpv-0.32.0/build'
'install' finished successfully (0.975s)
试一下播放视频，能够正常播放且使用硬件解码。
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
export LD_LIBRARY_PATH=/usr/lib/aarch64-linux-gnu/XXX
export LIBVA_DRIVER_NAME=XXX
export LIBVA_DRIVERS_PATH=/usr/lib/aarch64-linux-gnu/dri
mpv --vo=gpu --hwdec=vaapi /home/kylin/videos/3840x2160_60fps_Main_h264.mp4
(+) Video --vid=1 (*) (h264 3840x2160 60.000fps)
(+) Audio --aid=1 (*) (aac 2ch 48000Hz)
[ 1] sorry, we do not support opengl version 4.4 ...
Using hardware decoding (vaapi).
AO: [pulse] 48000Hz stereo 2ch float
VO: [gpu] 3840x2160 vaapi[nv12]
4.5 影响分析
4.5.1 libva
安装路径为：/usr/local/lib
PKG_CONFIG文件路径为：/usr/local/lib/pkgconfig
和系统默认路径不一致，不会对系统环境造成影响
4.5.2 ffmpeg
安装路径为：/usr/local/lib
PKG_CONFIG文件路径为：/usr/local/lib/pkgconfig
和系统默认路径不一致，不会对系统环境造成影响
4.5.3 mpv
额外安装许多包，对系统部分包进行了升级。
sudo apt install liblua5.1-0-dev libass-dev libbluray-dev libuchardet-dev librubberband-dev liblcms2-dev libpulse-dev libalsa-ocaml-dev libgbm-dev libx11-dev libxinerama-dev libxv-dev x11proto-scrnsaver-dev libxss-dev libcaca-dev libxrandr-dev libxtst-dev libxi-dev
# 实际安装的库(80个包)
apt download libncurses5 libtinfo5 libncursesw5 liblua5.1-0 libtinfo-dev libreadline6-dev libreadline-dev liblua5.1-0-dev libtool-bin libexpat1 libexpat1-dev libpng12-0 libfreetype6 libpng12-dev libfreetype6-dev libfontconfig1-dev libfribidi-dev libharfbuzz-gobject0 libharfbuzz-dev libass-dev libbluray-dev libuchardet0 libuchardet-dev librubberband-dev liblcms2-dev libglib2.0-0 libpcre3-dev libpcre32-3 libpcrecpp0v5 libpcre16-3 libpcre3 libglib2.0-bin libglib2.0-dev libpulsedsp pulseaudio-utils pulseaudio-module-bluetooth pulseaudio libpulse-mainloop-glib0 libpulse0 libpulse-dev ocaml-base-nox libncurses5-dev ocaml-compiler-libs ocaml-interp ocaml-nox libcamlp4-ocaml-dev camlp4 ledit libalsa-ocaml libasound2-dev libfindlib-ocaml ocaml-findlib libalsa-ocaml-dev libfindlib-ocaml-dev libegl1-mesa-dev libwayland-egl1-mesa libegl1-mesa libgbm1 libgl1-mesa-dri libgbm-dev libx11-6 libx11-dev x11proto-xinerama-dev libxinerama-dev libxv1 x11proto-video-dev libxv-dev x11proto-scrnsaver-dev libxss-dev libcaca0 libslang2-dev libcaca-dev libxrandr-dev libxrandr2 libxrender-dev x11proto-randr-dev x11proto-render-dev libxi-dev libxtst-dev x11proto-record-dev
解决了该系统声卡驱动导致系统设置界面闪退的问题
暂时无法评估
安装路径为：/usr/local/lib
可执行文件程序为：/usr/local/bin/mpv
PKG_CONFIG文件路径为：/usr/local/lib/pkgconfig
对系统默认的mpv链接项进行了更改，终端运行mpv为新安装的版本
对麒麟影音的影响：
软解暂未发现不良影响，硬解在麒麟影音依然不可用，但mpv可以正常硬解。
5 举一反三
查看其他内核版本为4.4.131-xxx开头的系统，发现普遍存在libva版本较低，XXX硬件解码不支持的问题。
类似的麒麟V4系统，均可以参照本篇文章搭建libva、ffmpeg、mpv（可选）环境，支持XXX硬件解码。
