一、配置工具链环境

sudo vim ~/.bashrc在文件最后添加

export PATH=$PATH:/opt/arm-rockchip830-linux-uclibcgnueabihf/bin

保存，重启机器

二、下载mp4v2

下载路径：MP4v2 | mp4v2

 三、修改CMakeLists.txt

四、执行编译 

mkdir build
cd build

cmake -DCMAKE_INSTALL_PREFIX=/opt/install -DCMAKE_C_COMPILER=arm-rockchip830-linux-uclibcgnueabihf-gcc -DCMAKE_CXX_COMPILER=arm-rockchip830-linux-uclibcgnueabihf-g++ -DCMAKE_AR=arm-rockchip830-linux-uclibcgnueabihf-ar  --disable-option-checking --disable-debug --disable-optimize --disable-fvisibility --disable-gch --disable-largefile --disable-util --disable-dependency-tracking --disable-libtool-lock --host=arm-rockchip830-linux --disable-static  ..

make
make install

五、展示结果