介绍

由于需要做微信和坐席IM通话音频转换处理，所以需要在centos7服务器上安装ffmpeg。

下载

首先需要下载依赖lame：https://sourceforge.net/projects/lame/files/lame/

之后下载ffmpeg链接：http://ffmpeg.org/download.html

安装需求包

安装lame

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

安装yasm

yum install yasm

编译ffmpeg

./configure --enable-shared --enable-libmp3lame  --prefix=/usr/local/ffmpeg

注意：时间比较长，需要等待几分钟

安装

make && make install

注意：时间比较长。

说明

不管是编程还是可执行程序的执行都需要依赖lib下面的动态库，有两个方法可以做到这一点：

查看/etc/ld.so.conf文件，发现里面只有一句话：

include ld.so.conf.d/*.conf

/usr/local/ffmpeg/lib

再运行：

 ldconfig

更新ld.so.cache，使修改生效。

 cp /usr/local/ffmpeg/bin/ffmpeg /usr/local/bin/ 
 cp /usr/local/ffmpeg/bin/ffprobe /usr/local/bin/ 
 cp /usr/local/ffmpeg/bin/ffserver /usr/local/bin/

或者也可以用创建链接的方式：

 ln -s /usr/local/ffmpeg/bin/ffmpeg /usr/local/bin/ 
 ln -s /usr/local/ffmpeg/bin/ffprobe /usr/local/bin/ 
 ln -s /usr/local/ffmpeg/bin/ffserver /usr/local/bin/

shell

如果你特别懒嫌麻烦的话，那么直接copy以下脚本直接执行就可以了。

    #!/bin/sh
    #
    # Copyright (c) 2019 by lulongij.
    # All rights reserved.
    #
    #ident "@lulj"

    if [ "`/usr/bin/whoami`" != "root" ]; then
    echo "You need to execute this script as root."
    exit 1
    fi

    yum -y update

    yum -y install glibc gcc gcc-c++ autoconf automake libtool git make nasm pkgconfig
    yum -y install SDL-devel a52dec a52dec-devel alsa-lib-devel faac faac-devel faad2 faad2-devel
    yum -y install freetype-devel giflib gsm gsm-devel imlib2 imlib2-devel lame lame-devel libICE-devel libSM-devel libX11-devel
    yum -y install libXau-devel libXdmcp-devel libXext-devel libXrandr-devel libXrender-devel libXt-devel
    yum -y install libogg libvorbis vorbis-tools mesa-libGL-devel mesa-libGLU-devel xorg-x11-proto-devel zlib-devel
    yum -y install libtheora theora-tools
    yum -y install ncurses-devel
    yum -y install libdc1394 libdc1394-devel
    yum -y install amrnb-devel amrwb-devel opencore-amr-devel

    cd /opt
    wget https://ffmpeg.org/releases/ffmpeg-4.1.tar.bz2


    ###安装lame####
    wget https://sourceforge.net/projects/lame/files/lame/3.100/lame-3.100.tar.gz
    tar -zxf lame-3.100.tar.gz
    cd lame-3.100
    ./configure && make && make install

    ### 安装yasm
    yum -y install yasm

    ###安装ffmpeg###
    cd /opt  && tar -xvf ffmpeg-4.1.tar.bz2 && cd ffmpeg-4.1
    ./configure --enable-shared --enable-libmp3lame  --prefix=/usr/local/ffmpeg && make && make install

    ##环境配置##
    echo "/usr/local/ffmpeg/lib" > /etc/ld.so.conf.d/ffmpeg.conf

    ldconfig

    cp /usr/local/ffmpeg/bin/ffmpeg /usr/local/bin/
    cp /usr/local/ffmpeg/bin/ffprobe /usr/local/bin/