关于ffmpeg的安装详细步骤和说明


一、windows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:

如下:

下载 源码包:ffmpeg-2.8.6.tar.bz2

1.从网络上下载到的源码包,然后解压到指目录


  假设下载目录 /opt/soft

  cd /opt/soft

  解压包:

  tar -jxvf ffmpeg-2.8.6.tar.bz2

   进入解压后目录

  cd ffmpeg-2.8.6

 执行

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

提示出错:

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.


按照提示需要安装yasm

使用如下
yum install yasm


安装完成后,继续执行

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


时间比较长,需要等待几分钟

然后执行下面

make

make install

时间比较长,需要等待几分钟

执行过程没有报错,则成功安装

检查是否安装成功:


/usr/local/ffmpeg/bin/ffmpeg --version

报错如下:

/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/lib/

vim /etc/ld.so.conf



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


使修改生效

ldconfig


执行 /usr/local/ffmpeg/bin/ffmpeg --version

则返回



配置环境变量 path

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

env

则在任何目录都可以执行 ffmpeg --version


测试执行转码:

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

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