关于ffmpeg的安装具体步骤和说明


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

解压后就可以使用:


ffmpeg -i C:ffmpeg est.avi -b:v 640k c:ffmpegoutput.ts



二、linux源代码安装:

例如以下:

下载 源代码包:ffmpeg-2.8.6.tar.bz2

1.从网络上下载到的源代码包,然后解压到指文件夹


  如果下载文件夹 /opt/soft

  cd /opt/soft

  解压包:

  tar -jxvf ffmpeg-2.8.6.tar.bz2

   进入解压后文件夹

  cd ffmpeg-2.8.6

 运行

./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
ffmpeg-user@ffmpeg.org 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.


依照提示须要安装yasm

使用例如以下
yum install yasm


安装完毕后,继续运行

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


时间比較长,须要等待几分钟

然后运行以下

make

make install

时间比較长,须要等待几分钟

运行过程没有报错,则安装成功

检查是否安装成功:


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

报错例如以下:

/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。



改动文件/etc/ld.so.conf 内容添加/usr/local/ffmpeg/lib/

vim /etc/ld.so.conf



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


使改动生效

ldconfig


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

则返回



配置环境变量 path

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

env

则在不论什么文件夹都能够运行 ffmpeg --version


測试运行转码:

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

原文地址:https://www.cnblogs.com/jhcelue/p/7105130.html