ffmpeg+libmp3lame库源码安装教程（CentOS）

lame--libmp3lame的安装包，支持MP3编码；yasm--NASM的重写，用于编译ffmpeg。

1.下载

ffmpeg下载链接：http://ffmpeg.org/download.html

yasm下载链接：http://www.linuxfromscratch.org/blfs/view/svn/general/yasm.html

lame下载接：https://sourceforge.net/projects/lame/files/lame/

2.编译安装

2.1安装lame

tar -zxf lame-3.100.tar.gz
cd lame-3.100
./configure
make
make install

2.2安装yasm

tar -zxf yasm-1.3..tar.gz
cd yasm-1.3.
sed -i 's#) ytasm.*#)#' Makefile.in
./configure
make
make install

2.3安装ffmpeg

tar -jxf ffmpeg-3.4.tar.bz2
cd ffmpeg-3.4
./configure --enable-shared --enable-libmp3lame
make
make install

3.配置调整

执行：ffmpeg --version

报错：ffmpeg: error while loading shared libraries: libavdevice.so.57: cannot open shared object file: No such file or directory

解决：编缉/etc/ld.so.conf，新建一行追加：/usr/local/lib；保存后执行命令重加载配置文件：ldconfig

参考：

http://www.cnblogs.com/wanghetao/p/3386311.html

http://www.linuxfromscratch.org/blfs/view/svn/general/yasm.html

http://blog.csdn.net/5iasp/article/details/50913855