- 新建一个ffmpeg文件夹：mkdir ffmpeg
- 如果没安装wget，先安装：yum install wget
- wget http://www.ffmpeg.org/releases/ffmpeg-4.4.tar.xz 或者是.gz（.gz和.xz是两种不同的压缩方式）
- tar -xvf ffmpeg-4.4.tar.xz
- ./configure --prefix=/usr/local/ffmpeg
- 报错之后先安装gcc和yasm编译器：yum install gcc，yum install yasm
- 安装音频和视频编码库：
-
wget https://sourceforge.net/projects/lame/files/lame/3.100/lame-3.100.tar.gz/download --no-check-certificate
-
下载的文件名为download，修改文件名为lame-3.100.tar.gz
-
tar -zxvf lame-3.100.tar.gz
-
cd lame-3.100.tar.gz
-
./configure --enable-shared
-
make && make install
-
wget http://download.videolan.org/x264/snapshots/x264-snapshot-20191217-2245.tar.bz2
-
tar -jxvf x264-snapshot-20191217-2245.tar.bz2
-
如果提示no file 安装解压工具：yum -y install bzip2
-
./configure --enable-shared --enable-static --disable-asm
-
make && make install
-
- 再执行一遍./configure --enable-libmp3lame --enable-libx264 --enable-gpl --prefix=/usr/local/ffmpeg
- make && make install
- 如果找不到make，先安装：yum -y install gcc automake autoconf libtool make
- 添加环境变量：vi /etc/profile
- 按下i，移动到最后一行，输入export PATH=$PATH:/usr/local/ffmpeg/bin，按下esc，输入:wq保存退出
- source /etc/profile设置生效
- ffmpeg -version查看是否安装成功
- 报错：./ffmpeg: error while loading shared libraries: libmp3lame.so.0: cannot open shared object file: No such file or directory
- 解决办法：ln -s /usr/local/lib/libmp3lame.so.0.0.0 /usr/lib64/libmp3lame.so.0
- 报错：/ffmpeg: error while loading shared libraries: libx264.so.157: cannot open shared object file: No such file or directory
- 解决办法：export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH export CFLAGS=/usr/local/include:$CFLAGS
