ffmpeg 安装

下载源码包：http://ffmpeg.org/releases/ffmpeg-3.2.2.tar.bz2

解压并安装

  tar -jxvf ffmpeg-3.2.2.tar.bz2

进入目录并执行./configure --enable-shared --prefix=/usr/local/ffmpeg

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.

按照提示需要安装yasm

sudo yum install yasm

make

make install

ffmpeg: error while loading shared libraries: libavdevice.so.57: cannot open shared object file: No such file or directory

vi  /etc/ld.so.conf

添加一行  /usr/local/ffmpeg/lib

执行ldconfig

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

ffmpeg -version

ffmpeg version N-82785-g6b95da9 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
configuration: --enable-shared --prefix=/usr/local/ffmpeg
libavutil      55. 41.101 / 55. 41.101
libavcodec     57. 66.109 / 57. 66.109
libavformat    57. 58.101 / 57. 58.101
libavdevice    57.  2.100 / 57.  2.100
libavfilter     6. 68.100 /  6. 68.100
libswscale      4.  3.101 /  4.  3.101
libswresample   2.  4.100 /  2.  4.100