在Ubuntu 上编译FFmpeg

首先去官网获取最新/最适合自己的ffmpeg版本
官方给出了一些简单的疑难解答
https://www.johnvansickle.com/ffmpeg/faq/

下载最新的git版本。
$ wget https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-amd64-static.tar.xz

//解压
$ tar xvf ffmpeg-git-amd64-static.tar.xz

//运行
$ ./ffmpeg-git-20180203-amd64-static/ffmpeg

为了方便使用，加入全局变量

将静态二进制文件ffmpeg和ffprobe移动到外壳程序的路径中。

$ sudo mv ffmpeg-git-20180203-amd64-static/ffmpeg ffmpeg-git-20180203-amd64-static/ffprobe /usr/local/bin/

//检查是否成功
$ whereis ffmpeg
ffmpeg: /usr/local/bin/ffmpeg

$ whereis ffprobe
ffprobe: /usr/local/bin/ffprobe

在任意目录运行

$ ffmpeg
ffmpeg version N-54690-g682990a849-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  libavutil      56. 60.100 / 56. 60.100
  libavcodec     58.111.101 / 58.111.101
  libavformat    58. 62.100 / 58. 62.100
  libavdevice    58. 11.102 / 58. 11.102
  libavfilter     7. 88.100 /  7. 88.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
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'

成功