首先查看 FFmpeg 的编译选项
进入 FFmpeg框架包，并且带参数执行配置文件，查看帮助

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查看配置帮助

zjjf$ ./configure --help

然后出现一大堆可配置项

Usage: configure [options]
Options: [defaults in brackets after descriptions]

帮助选项

Help options:
  --help                   print this message
  --quiet                  Suppress showing informative output
  --list-decoders          show all available decoders 
  --list-encoders          show all available encoders
  --list-hwaccels          show all available hardware accelerators
//分离器
  --list-demuxers          show all available demuxers
  --list-muxers            show all available muxers
//解析器
  --list-parsers           show all available parsers
//协议
  --list-protocols         show all available protocols
//比特流
  --list-bsfs              show all available bitstream filters
//输入设备
  --list-indevs            show all available input devices
//输出设备
  --list-outdevs           show all available output devices
//过滤器
  --list-filters           show all available filters

标准选项

Standard options:
//打印 log 日志（配置日志文件输出路径）
  --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
//不打印日志
  --disable-logging        do not log configure debug information
//如果生成警告
  --fatal-warnings         fail if any configure warning is generated
//输出打包出的.a静态库的路径
  --prefix=PREFIX          install in PREFIX [/usr/local]
  --bindir=DIR             install binaries in DIR [PREFIX/bin]
//设置二进制文件的安装路径
  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  --libdir=DIR             install libs in DIR [PREFIX/lib]
  --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  --incdir=DIR             install includes in DIR [PREFIX/include]
  --mandir=DIR             install man page in DIR [PREFIX/share/man]
  --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  --enable-rpath           use rpath to allow installing libraries in paths
                           not part of the dynamic linker search path
                           use rpath when linking programs (USE WITH CARE)
  --install-name-dir=DIR   Darwin directory name for installed targets

许可选项（涉及到开源框架的侵权许可）

Licensing options:
//允许使用GPL代码，由此生成二进制文件（库）
//GPL:开源、免费、公用的许可
  --enable-gpl             allow use of GPL code, the resulting libs
                           and binaries will be under GPL [no]
//GPL的版本
  --enable-version3        upgrade (L)GPL to version 3 [no]
  --enable-nonfree         allow use of nonfree code, the resulting libs
                           and binaries will be unredistributable [no]

高级选项

Advanced options (experts only):
  --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
  --custom-allocator=NAME  use a supported custom allocator

最优选项

Optimization options (experts only):
  --disable-asm            disable all assembly optimizations
  --disable-altivec        disable AltiVec optimizations

开发者选项

Developer options (useful when working on FFmpeg itself):
  --disable-debug          disable debugging symbols
  --enable-debug=LEVEL     set the debug lev

配置备选项

Configuration options:
//不允许构建（生成）静态库
  --disable-static         do not build static libraries [no]
//构建动态库
  --enable-shared          build shared libraries [no]
  --enable-small           optimize for size instead of speed
  --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
  --enable-gray            enable full grayscale support (slower color)
  --disable-swscale-alpha  disable alpha channel support in swscale
  --disable-all            disable building components, libraries and programs
  --disable-autodetect     disable automatically detected external libraries [no]

组件选项（FFmpeg核心的八个库）

Component options:
  --disable-avdevice       disable libavdevice build
  --disable-avcodec        disable libavcodec build
  --disable-avformat       disable libavformat build
  --disable-swresample     disable libswresample build
  --disable-swscale        disable libswscale build
  --disable-postproc       disable libpostproc build
  --disable-avfilter       disable libavfilter build
  --enable-avresample      enable libavresample build [no]

外部的库支持（重点）

External library support:

  Using any of the following switches will allow FFmpeg to link to the
  corresponding external library. All the components depending on that library
  will become enabled, if all their other dependencies are met and they are not
  explicitly disabled. E.g. --enable-libwavpack will enable linking to
  libwavpack and allow the libwavpack encoder to be built, unless it is
  specifically disabled with --disable-encoder=libwavpack.

只有系统本身的库才能被检测到，如果不是系统库，使用的是外部库，则需要配置
  Note that only the system libraries are auto-detected. All the other external
  libraries must be explicitly enabled.

  Also note that the following help text describes the purpose of the libraries
  themselves, not all their features will necessarily be usable by FFmpeg.

  --disable-alsa           disable ALSA support [autodetect]
  --disable-appkit         disable Apple AppKit framework [autodetect]
  --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
//启用 aac 编码
  --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]

工具链选项（重点）-->指定编译平台的架构类型，如：arm64、x86...

Toolchain options:
//选择要配置的架构类型
  --arch=ARCH              select architecture []
  --cpu=CPU                select the minimum required CPU (affects
                           instruction selection, may crash on older CPUs)
  --cross-prefix=PREFIX    use PREFIX for compilation tools []
//指定编译什么系统下的架构
 --target-os=OS           compiler targets OS []

后面还有一大堆......请自行实践查看

配置简介

//当前可用的解码器
  --list-decoders          show all available decoders

查看所有解码器

zjjf$ ./configure --list-decoders 

aac            atrac1             eatqi
aac_at             atrac3             eightbps
aac_fixed          atrac3al           eightsvx_exp
aac_latm           atrac3p            eightsvx_fib
aasc               atrac3pal              escape124
后面还有一大堆......请自行实践查看

查看所有编码器

  --list-encoders          show all available encoders

zjjf$ ./configure --list-decoders 

a64multi           libgsm             pcm_s32le
a64multi5          libgsm_ms              pcm_s32le_planar
aac            libilbc            pcm_s64be
aac_at             libkvazaar             pcm_s64le
ac3            libmp3lame             pcm_s8
后面还有一大堆......请自行实践查看

查看所有可用的硬件加速

  --list-hwaccels          show all available hardware accelerators

zjjf$ ./configure --list-hwaccels

h263_vaapi         mjpeg_cuvid            vc1_d3d11va
h263_videotoolbox      mpeg1_cuvid            vc1_d3d11va2
h264_cuvid         mpeg1_vdpau            vc1_dxva2
后面还有一大堆......请自行实践查看