安裝nasm：(gcc 4.8.5)
axel
tar -zxvf nasm-2.15.02
cd nasm-2.15.02
./configure
make
sudo make install
git clone
cd openh264
git checkout -b v2.1.1
make arch=x86_64
sudo make install
git clone
cd x264
./configure --enable-shared --enable-static --disable-asm
make
sudo
make
install
cd ffmpeg-4.3
vi fftools/makefile
# 修改 $$(objs-$(1)): cflags += -fpic $(cflags-$(1))
./configure --enable-shared --enable-pic --enable-libopenh264 --enable-encoder=libopenh264 --enable-decoder=libopenh264 --enable-gpl --enable-libx264 --enable-encoder=libx264 --enable-decoder=h264
make
sudo
make
install
export pkg_config_path=/usr/local/lib/pkgconfig;/usr/local/lib64/pkgconfig;
$pkg_config_path
或者：vi /etc/ld.so.conf.d/local.conf
# 加入：/usr/local/lib
cd opencv-4.3.0
vi cmakelists.txt
# add by sam
add_compile_options(-fpic -wl,-bsymbolic)
# or
set(cmake_c_flags "$ -fpic -wl,-bsymbolic")
set(cmake_cxx_flags "$ -fpic -wl,-bsymbolic")
mkdir build
cd build
cmake -d with_cuda=off \
-d cmake_build_type=release \
-d opencv_generate_pkgconfig=on \
-d cmake_install_prefix=/usr/local \
-d with_ipp=off \
-d with_ffmpeg=on \
-d opencv_extra_modules_path=
../../opencv_contrib-4.3.0/modules \
-d build_tests=off \
-d build_perf_tests=off \
-d install_python_examples=off \
-d install_c_examples=off \
-d build_examples=off \
-s .. \
-b ./
make -j4
sudo
make
install
export ld_library_path=
$ld_library_path:/usr/local/lib:/usr/local/lib64
su root
npminstall -g node-gyp
sudo yum groupinstall 'development tools'
sudo yum install centos-release-scl
sudo yum install devtoolset-7-gcc*
scl enable devtoolset-7 bash
"opencv4nodejs"
:
npm
install opencv-build
npm
install opencv4nodejs
實際上，最後仍然有個error，可以如下處理：
vi node_modules/opencv4nodejs/binding.gyp"cflags" : [
"-std=c++11","-wno-misleading-indentation"
],
cd node_modules/opencv4nodejs/
# env
export opencv4nodejs_disable_autobuild=1
export opencv_include_dir=/usr/local/include/opencv4
export opencv_lib_dir=/usr/local/lib64
# node-gyp configure
# node install/install.js
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