在控制台输入如下命令可看到 ffmpeg 详细的编译选项。
[root@localhost ffmpeg]# ./configure --help
Usage: configure [options]
Options: [defaults in brackets after descriptions]
Standard options:
--help print this message
--logfile=FILE log tests and output to FILE [config.log]
--disable-logging do not log configure debug information
------------------------------------------------------------------------------
这几个参数重要，决定了ffmpeg编译出来的文件放在系统的什么地方。
--prefix=PREFIX install in PREFIX []
--bindir=DIR install binaries in DIR [PREFIX/bin]
--datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
--libdir=DIR install libs in DIR [PREFIX/lib]
--shlibdir=DIR install shared libs in DIR [PREFIX/lib]
--incdir=DIR install includes in DIR [PREFIX/include]
--mandir=DIR install man page in DIR [PREFIX/share/man]
------------------------------------------------------------------------------
Configuration options:
--disable-static do not build static libraries [no]
--enable-shared build shared libraries [no]
--enable-gpl allow use of GPL code, the resulting libs
and binaries will be under GPL [no]
--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]
------------------------------------------------------------------------------
这些文ffmpeg目录下的文件
--disable-doc do not build documentation
--disable-ffmpeg disable ffmpeg build
--disable-ffplay disable ffplay build
--disable-ffprobe disable ffprobe build
--disable-ffserver disable ffserver build
--disable-avdevice disable libavdevice build
--disable-avcodec disable libavcodec build
--disable-avcore disable libavcore build
--disable-avformat disable libavformat build
--disable-swscale disable libswscale build
--enable-postproc enable GPLed postprocessing support [no]
--disable-avfilter disable video filter support [no]
-------------------------------------------------------------------------------
--disable-pthreads disable pthreads [auto]
--enable-w32threads use Win32 threads [no]
--enable-x11grab enable X11 grabbing [no]
--disable-network disable network support [no]
--disable-mpegaudio-hp faster (but less accurate) MPEG audio decoding [no]
--enable-gray enable full grayscale support (slower color)
--disable-swscale-alpha disable alpha channel support in swscale
--disable-fastdiv disable table-based division
--enable-small optimize for size instead of speed
--disable-aandct disable AAN DCT code
--disable-dct disable DCT code
--disable-fft disable FFT code
--disable-golomb disable Golomb code
--disable-huffman disable Huffman code
--disable-lpc disable LPC code
--disable-mdct disable MDCT code
--disable-rdft disable RDFT code
--disable-vaapi disable VAAPI code
--disable-vdpau disable VDPAU code
--disable-dxva2 disable DXVA2 code
--enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
--enable-hardcoded-tables use hardcoded tables instead of runtime generation
--enable-memalign-hack emulate memalign, interferes with memory debuggers
这个选项 牛B 啊！
--disable-everything disable all components listed below
--disable-encoder=NAME disable encoder NAME
--enable-encoder=NAME enable encoder NAME
--disable-encoders disable all encoders
--disable-decoder=NAME disable decoder NAME
--enable-decoder=NAME enable decoder NAME
--disable-decoders disable all decoders
--disable-hwaccel=NAME disable hwaccel NAME
--enable-hwaccel=NAME enable hwaccel NAME
--disable-hwaccels disable all hwaccels
--disable-muxer=NAME disable muxer NAME
--enable-muxer=NAME enable muxer NAME
--disable-muxers disable all muxers
--disable-demuxer=NAME disable demuxer NAME
--enable-demuxer=NAME enable demuxer NAME
--disable-demuxers disable all demuxers
--enable-parser=NAME enable parser NAME
--disable-parser=NAME disable parser NAME
--disable-parsers disable all parsers
--enable-bsf=NAME enable bitstream filter NAME
--disable-bsf=NAME disable bitstream filter NAME
--disable-bsfs disable all bitstream filters
--enable-protocol=NAME enable protocol NAME
--disable-protocol=NAME disable protocol NAME
--disable-protocols disable all protocols
--disable-indev=NAME disable input device NAME
--disable-outdev=NAME disable output device NAME
--disable-indevs disable input devices
--disable-outdevs disable output devices
--disable-devices disable all devices
--enable-filter=NAME enable filter NAME
--disable-filter=NAME disable filter NAME
--disable-filters disable all filters
--list-decoders show all available decoders
--list-encoders show all available encoders
--list-hwaccels show all available hardware accelerators
--list-muxers show all available muxers
--list-demuxers show all available demuxers
--list-parsers show all available parsers
--list-protocols show all available protocols
--list-bsfs show all available bitstream filters
--list-indevs show all available input devices
--list-outdevs show all available output devices
--list-filters show all available filters
----------------------------------------------------------------------------------
ffmpeg支持的外部解码库。ffmpeg为我们保留了这些解码库的swap(空壳子)。
当ffmpeg要支持这些文件格式时，那个这些解码库需我们手动的添加。当然ffmpeg也为我们自带
了 avi 这种常见视频格式的解码库，这样就不需要我们手动添加了。
External library support:
--enable-avisynth enable reading of AVISynth script files [no]
--enable-bzlib enable bzlib [autodetect]
--enable-frei0r enable frei0r video filtering
--enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
--enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
--enable-libopencv enable video filtering via libopencv [no]
--enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
and libraw1394 [no]
--enable-libdirac enable Dirac support via libdirac [no]
--enable-libfaac enable FAAC support via libfaac [no]
--enable-libgsm enable GSM support via libgsm [no]
--enable-libmp3lame enable MP3 encoding via libmp3lame [no]
--enable-libnut enable NUT (de)muxing via libnut,
native (de)muxer exists [no]
--enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]
--enable-librtmp enable RTMP[E] support via librtmp [no]
--enable-libschroedinger enable Dirac support via libschroedinger [no]
--enable-libspeex enable Speex decoding via libspeex [no]
--enable-libtheora enable Theora encoding via libtheora [no]
--enable-libvorbis enable Vorbis encoding via libvorbis,
native implementation exists [no]
--enable-libvpx enable VP8 support via libvpx [no]
x264为新一代H.264标准的编解码器，它与2003年发布。在同行中编解码的效率是可是相当之高 。
质量可超 rmvb。
2011年又宣布支持蓝光编解码，可谓相当给力。
--enable-libx264 enable H.264 encoding via x264 [no]
--enable-libxavs enable AVS encoding via xavs [no]
xvid 为老一代的编解码器。
--enable-libxvid enable Xvid encoding via xvidcore,
native MPEG-4/Xvid encoder exists [no]
--enable-mlib enable Sun medialib [no]
--enable-zlib enable zlib [autodetect]
Advanced options (experts only):
--source-path=PATH path to source code [/opt/friendlyarm/video/ffmpeg]
--cross-prefix=PREFIX use PREFIX for compilation tools []
--enable-cross-compile assume a cross-compiler is used
--sysroot=PATH root of cross-build tree
--sysinclude=PATH location of cross-build system headers
--target-os=OS compiler targets OS []
--target-exec=CMD command to run executables on target
--target-path=DIR path to view of build directory on target
--nm=NM use nm tool
--ar=AR use archive tool AR [ar]
--as=AS use assembler AS []
--cc=CC use C compiler CC [gcc]
--ld=LD use linker LD
--host-cc=HOSTCC use host C compiler HOSTCC
--host-cflags=HCFLAGS use HCFLAGS when compiling for host
--host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
--host-libs=HLIBS use libs HLIBS when linking for host
--extra-cflags=ECFLAGS add ECFLAGS to CFLAGS []
--extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS []
--extra-libs=ELIBS add ELIBS []
--extra-version=STRING version string suffix []
--build-suffix=SUFFIX library name suffix []
--arch=ARCH select architecture []
--cpu=CPU select the minimum required CPU (affects
instruction selection, may crash on older CPUs)
--disable-asm disable all assembler optimizations
--disable-altivec disable AltiVec optimizations
--disable-amd3dnow disable 3DNow! optimizations
--disable-amd3dnowext disable 3DNow! extended optimizations
--disable-mmx disable MMX optimizations
--disable-mmx2 disable MMX2 optimizations
--disable-sse disable SSE optimizations
--disable-ssse3 disable SSSE3 optimizations
--disable-armv5te disable armv5te optimizations
--disable-armv6 disable armv6 optimizations
--disable-armv6t2 disable armv6t2 optimizations
--disable-armvfp disable ARM VFP optimizations
--disable-iwmmxt disable iwmmxt optimizations
--disable-mmi disable MMI optimizations
--disable-neon disable neon optimizations
--disable-vis disable VIS optimizations
--disable-yasm disable use of yasm assembler
--enable-pic build position-independent code
--malloc-prefix=PFX prefix malloc and related names with PFX
--enable-sram allow use of on-chip SRAM
--disable-symver disable symbol versioning
Developer options (useful when working on FFmpeg itself):
--disable-debug disable debugging symbols
--enable-debug=LEVEL set the debug level []
--disable-optimizations disable compiler optimizations
--enable-extra-warnings enable more compiler warnings
--disable-stripping disable stripping of executables and shared libraries
--samples=PATH location of test samples for FATE
NOTE: Object files are built at the place where configure is launched.
-----------------------------------------------------------------------------------
以下翻译来自网络，ffmpeg的版本未知，放在一起只是为了参考下。
[root@web ffmpeg]# ./configure --help
Usage: configure [options]
Options: [defaults in brackets after descriptions]
Standard options: 基本选项参数
--help 显示此帮助信息|print this message
--log[=FILE|yes|no] 记录测试并输出到config.err文件|log tests and output to FILE [config.err]
--prefix=PREFIX 安装程序到指定目录（默认/usr/local）|install in PREFIX [/usr/local]
--libdir=DIR 安装库到指定目录（默认prefix/lib）|install libs in DIR [PREFIX/lib]
--shlibdir=DIR 指定共享库路径（默认prefix/lib）|install shared libs in DIR [PREFIX/lib]
--incdir=DIR 指定includes路径（默认prefix/include/ffmpeg）|install includes in DIR[PREFIX/include/ffmpeg]
--mandir=DIR 指定man page路径（默认prefix/man）install man page in DIR [PREFIX/man]
--enable-mp3lame 启用mp3编码libmp3lame（默认关闭）enable MP3 encoding via libmp3lame[default=no]
--enable-libogg 启用ogg支持libogg（默认关闭）enable Ogg support via libogg [default=no]
--enable-vorbis 启用Vorbis支持libvorbis（默认关闭）enable Vorbis support via libvorbis [default=no]
--enable-faad 启用faad支持libfaad（默认关闭）enable FAAD support via libfaad [default=no]
--enable-faadbin 启用faad运行时链接支持（默认关闭）build FAAD support with runtime linking[default=no]
--enable-faac 启用faac支持libfaac（默认关闭）enable FAAC support via libfaac [default=no]
--enable-libgsm 启用GSM支持libgsm（默认关闭）enable GSM support via libgsm [default=no]
--enable-xvid 启用xvid支持xvidcore（默认关闭）enable XviD support via xvidcore [default=no]
--enable-x264 启用H.264编码（默认关闭）enable H.264 encoding via x264 [default=no]
--enable-mingw32 启用MinGW本地/交叉win环境编译|enable MinGW native/cross Windows compile
--enable-mingwce 启用MinGW本地/交叉winCE环境编译enable MinGW native/cross WinCE compile
--enable-a52 启用A52支持（默认关闭）enable GPLed A52 support [default=no]
--enable-a52bin 启用运行时打开liba52.so.0（默认关闭）open liba52.so.0 at runtime [default=no]
--enable-dts 启用DTS支持（默认关闭）enable GPLed DTS support [default=no]
--enable-pp 启用后加工支持（默认关闭）enable GPLed postprocessing support [default=no]
--enable-static 构建静态库（默认启用）build static libraries [default=yes]
--disable-static 禁止构建静态库（默认关闭）do not build static libraries [default=no]
--enable-shared 构建共享库（默认关闭）build shared libraries [default=no]
--disable-shared 禁止构建共享库（默认启用）do not build shared libraries [default=yes]
--enable-amr_nb 启用amr_nb float音频编解码器|enable amr_nb float audio codec
--enable-amr_nb-fixed 启用fixed amr_nb codec | use fixed point for amr-nb codec
--enable-amr_wb 启用amr_wb float音频编解码器|enable amr_wb float audio codec
--enable-amr_if2 启用amr_wb IF2音频编解码器|enable amr_wb IF2 audio codec
--enable-sunmlib 启用Sun medialib（默认关闭） | use Sun medialib [default=no]
--enable-pthreads 启用pthreads（多线程）（默认关闭）use pthreads [default=no]
--enable-dc1394 启用libdc1394、libraw1394抓取IIDC-1394（默认关闭）enable IIDC-1394 grabbing using libdc1394
and
libraw1394 [default=no]
--enable-swscaler 启用计数器支持？（默认关闭）software scaler support [default=no]
--enable-avisynth 允许读取AVISynth脚本本件（默认关闭）allow reading AVISynth script files [default=no]
--enable-gpl 允许使用GPL（默认关闭）allow use of GPL code, the resulting libav* and ffmpeg will be under
GPL
[default=no]
Advanced options (experts only): 高级选项参数（供专业人员使用）
--source-path=PATH 源码的路径（当前为/root/flv/ffmpeg）| path to source code [/root/flv/ffmpeg]
--cross-prefix=PREFIX 为编译工具指定路径 | use PREFIX for compilation tools []
--cross-compile 假定使用了交叉编译 | assume a cross-compiler is used
--cc=CC 指定使用何种C编译器（默认gcc）use C compiler CC [gcc]
--make=MAKE 使用特定的make | use specified make [make]
--extra-cflags=ECFLAGS 添加ECFLAGS到CFLAGS | add ECFLAGS to CFLAGS []
--extra-ldflags=ELDFLAGS 添加ELDFLAGS到LDFLAGS（默认-Wl，--as-needed）| add ELDFLAGS to LDFLAGS [ -Wl,--as-needed]
--extra-libs=ELIBS 添加ELIBS | add ELIBS []
--build-suffix=SUFFIX 为专用程序添加后缀 | suffix for application specific build []
--arch=ARCH 选择机器架构（默认x86）select architecture [x86]
--cpu=CPU 选用最低的cpu（影响指令的选择，可以在老CPU上出错） | selects the minimum cpu required
(affects
instruction selection, may crash on older CPUs)
--powerpc-perf-enable 启用PPC上面的性能报告（需要启用PMC）enable performance report on PPC
(requires enabling PMC)
--disable-mmx 禁用MMX | disable MMX usage
--disable-armv5te 禁用armv5te | disable armv5te usage
--disable-iwmmxt 禁用iwmmxt | disable iwmmxt usage
--disable-altivec 禁用AltiVec | disable AltiVec usage
--disable-audio-oss 禁用OSS音频支持（默认启用）disable OSS audio support [default=no]
--disable-audio-beos 禁用BeOS音频支持（默认启用）disable BeOS audio support [default=no]
--disable-v4l 禁用video4linux提取（默认启用）disable video4linux grabbing [default=no]
--disable-v4l2 禁用video4linux2提取（默认启用）disable video4linux2 grabbing [default=no]
--disable-bktr 禁用bktr视频提取（默认启用）disable bktr video grabbing [default=no]
--disable-dv1394 禁用DV1394提取（默认启用）disable DV1394 grabbing [default=no]
--disable-network 禁用网络支持（默认支持）disable network support [default=no]
--disable-ipv6 禁用ipv6支持（默认支持）disable ipv6 support [default=no]
--disable-zlib 禁用zlib（默认支持）disable zlib [default=no]
--disable-simple_idct 禁用simple IDCT例程（默认启用）disable simple IDCT routines [default=no]
--disable-vhook 禁用video hooking支持 | disable video hooking support
--enable-gprof enable profiling with gprof [no]
--disable-debug 禁用调试符号 | disable debugging symbols
--disable-opts 禁用编译器最优化 | disable compiler optimizations
--disable-mpegaudio-hp 启用更快的解码MPEG音频（但精确度较低）（默认禁用）faster (but less accurate) MPEG audio
decoding
[default=no]
--disable-protocols 禁用 I/O 协议支持（默认启用）disable I/O protocols support [default=no]
--disable-ffserver 禁用生成ffserver | disable ffserver build
--disable-ffplay 禁用生成ffplay | disable ffplay build
--enable-small 启用优化文件尺寸大小（牺牲速度）optimize for size instead of speed
--enable-memalign-hack 启用模拟内存排列，由内存调试器干涉？ | emulate memalign, interferes with memory debuggers
--disable-strip 禁用剥离可执行程序和共享库 | disable stripping of executables and shared libraries
--disable-encoder=NAME 禁用XX编码器 | disables encoder NAME
--enable-encoder=NAME 启用XX编码器 | enables encoder NAME
--disable-decoder=NAME 禁用XX解码器 | disables decoder NAME
--enable-decoder=NAME 启用XX解码器 | enables decoder NAME
--disable-encoders 禁用所有编码器 | disables all encoders
--disable-decoders 禁用所有解码器 | disables all decoders
--disable-muxer=NAME 禁用XX混音器 | disables muxer NAME
--enable-muxer=NAME 启用XX混音器 | enables muxer NAME
--disable-muxers 禁用所有混音器 | disables all muxers
--disable-demuxer=NAME 禁用XX解轨器 | disables demuxer NAME
--enable-demuxer=NAME 启用XX解轨器 | enables demuxer NAME
--disable-demuxers 禁用所有解轨器 | disables all demuxers
--enable-parser=NAME 启用XX剖析器 | enables parser NAME
--disable-parser=NAME 禁用XX剖析器 | disables parser NAME
--disable-parsers 禁用所有剖析器 | disables all parsers
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