FFMPEG安装教程

本文参考:

https://blog.csdn.net/makymilk/article/details/107400119

害怕链接失效，所以自己写一个备份。

一、下载安装包

git clone https://git.ffmpeg.org/ffmpeg.git  --config http.proxy= --config http.sslVerify=false

二、编译安装

进入刚才下载的ffmpeg目录

./configure --prefix=/usr/local/ffmpeg --enable-debug=3 --enable-shared --disable-static

指令解释：

--prefix=/user/local/ffmpeg指定目录

--enable-debug=3 调试等级

--enable-shared 生成动态库

--disable-static 不允许生成静态库

编译

make -j 4

安装

sudo make install

配置环境变量：

vim ~/.bashrc 
export PATH="$PATH:/usr/local/ffmpeg/bin"
source ~/.bashrc 

验证是否安装成功：

cluo@cluo:~/ffmpeg$ ffmpeg 
ffmpeg version N-106738-g3946cb02fc Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
  configuration: --prefix=/usr/local/ffmpeg --enable-debug=3 --enable-shared --disable-static
  libavutil      57. 24.101 / 57. 24.101
  libavcodec     59. 27.100 / 59. 27.100
  libavformat    59. 23.100 / 59. 23.100
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 37.100 /  8. 37.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'

ok了

三、编译报错解决

错误：

nasm/yasm not found or too old. Use --disable-x86asm for a crippled build.

解决方法：需要安装yasm的汇编编译器

sudo apt-get install yasm

错误：

ffmpeg: error while loading shared libraries: libavdevice.so.58: cannot open shared object file: No such file or directory

解决方法：

vim ~/.bashrc
export LD_LIBRARY_PATH=/usr/local/ffmpeg/lib/
source  ~/.bashrc

错误：

 gcc is unable to create an executable file

解决方法：

sudo apt-get install gcc