关于ffmpeg的安装详细步骤和说明

一、 windows 下安装

直接下载地址：

https://ffmpeg.zeranoe.com/builds/

https://ffmpeg.zeranoe.com/builds/win64/static/ffmpeg-20160316-git-d0a9114-win64-static.7z

解压后即可使用：

ffmpeg -i C:\ffmpeg\test.avi -b:v 640k c:\ffmpeg\output.ts

二、linux源码安装

1下载 源码包：ffmpeg-2.8.6.tar.bz2

2 解压包  tar -jxvf ffmpeg-2.8.6.tar.bz2   （如果报错需要安装bzip2）

3进入解压目录   cd ffmpeg-2.8.6

4 执行 ./configure --enable-shared --prefix=/usr/local/ffmpeg-2.8.6

报错：

yasm/nasm not found or too old. Use --disable-yasm for a crippled build.

If you think configure made a mistake, make sure you are using the latest

version from Git.  If the latest version fails, report the problem to the

[email protected] mailing list or IRC #ffmpeg on irc.freenode.net.

Include the log file "config.log" produced by configure as this will help

solve the problem.

5需要安装yasm (汇编编译器)

5.1 tar zxvf yasm-1.3.0.tar.gz

5.2 cd yasm-1.3.0/

5.3 ./configure --prefix=/usr/local/yasm-1.3.0

5.4 make

5.5 make install

5.6 /etc/profile 文件末尾添加export PATH="$PATH:/usr/local/yasm-1.3.0/bin"

5.7 source /etc/profile

5.8 yasm --version

6 重新执行   ./configure --enable-shared --prefix=/usr/local/ffmpeg-2.8.6

7 make

8 make install

注意： 时间比较长，需要等待几分钟

9 检查是否安装成功：/usr/local/ffmpeg-2.8.6/bin/ffmpeg --version

报错：

/usr/local/ffmpeg/bin/ffmpeg: error while loading shared libraries: libavdevice.so.56: cannot open shared object file: No such file or directory

提示库文件找不到

修改文件/etc/ld.so.conf 内容，增加/usr/local/ffmpeg-2.8.6/lib/

修改后如下：

include ld.so.conf.d/*.conf
/usr/local/ffmpeg/lib/

使修改生效

ldconfig

执行 /usr/local/ffmpeg-2.8.6/bin/ffmpeg --version  返回版本结果

10 配置环境变量

vi /etc/profile

export PATH=/usr/local/ffmpeg/bin/:$PATH

source  /etc/profile

11 任何目录都可以执行ffmpeg --version

到此，安装成功