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