Ffmpeg编译详解

Linux

查看configure帮助

• cd ffmpeg
• ./configure --help 或着生一个文本文件好以参照./configure --help > ffmpegcfg.txt

选项列表

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

Standard options:

 --help                   print this message
 --log[=FILE|yes|no]      log tests and output to FILE [config.err]
 --prefix=PREFIX          install in PREFIX [/usr/local]
 --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/ffmpeg]
 --mandir=DIR             install man page in DIR [PREFIX/man]
 --enable-static          build static libraries [default=yes]
 --disable-static         do not build static libraries [default=no]
 --enable-shared          build shared libraries [default=no]
 --disable-shared         do not build shared libraries [default=yes]
 --enable-gpl             allow use of GPL code, the resulting libav*
                          and ffmpeg will be under GPL [default=no]
 --enable-pp              enable GPLed postprocessing support [default=no]
 --enable-swscaler        software scaler support [default=no]
 --enable-beosthreads     use BeOS threads [default=no]
 --enable-pthreads        use pthreads [default=no]
 --enable-w32threads      use Win32 threads [default=no]
 --enable-x11grab         enable X11 grabbing [default=no]

External library support:

 --enable-sunmlib         use Sun medialib [default=no]
 --enable-dc1394          enable IIDC-1394 grabbing using libdc1394
                          and libraw1394 [default=no]
 --enable-liba52          enable GPLed liba52 support [default=no]
 --enable-liba52bin       open liba52.so.0 at runtime [default=no]
 --enable-avisynth        allow reading AVISynth script files [default=no]
 --enable-libamr-nb       enable libamr-nb floating point audio codec
 --enable-libamr-wb       enable libamr-wb floating point audio codec
 --enable-libfaac         enable FAAC support via libfaac [default=no]
 --enable-libfaad         enable FAAD support via libfaad [default=no]
 --enable-libfaadbin      open libfaad.so.0 at runtime [default=no]
 --enable-libgsm          enable GSM support via libgsm [default=no]
 --enable-libmp3lame      enable MP3 encoding via libmp3lame [default=no]
 --enable-libnut          enable NUT (de)muxing via libnut,
                          native demuxer exists [default=no]
 --enable-libogg          enable Ogg muxing via libogg [default=no]
 --enable-libtheora       enable Theora encoding via libtheora [default=no]
 --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
                          native implementations exist [default=no]
 --enable-libx264         enable H.264 encoding via x264 [default=no]
 --enable-libxvid         enable Xvid encoding via xvidcore,
                          native MPEG-4/Xvid encoder exists [default=no]

Advanced options (experts only):

 --source-path=PATH       path to source code [/root/ffmpeg]
 --cross-prefix=PREFIX    use PREFIX for compilation tools []
 --cross-compile          assume a cross-compiler is used
 --target-os=OS           compiler targets OS [linux]
 --cc=CC                  use C compiler CC [gcc]
 --make=MAKE              use specified make [make]
 --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS []
 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS []
 --extra-libs=ELIBS       add ELIBS []
 --build-suffix=SUFFIX    suffix for application specific build []
 --arch=ARCH              select architecture  [i686]
 --cpu=CPU                selects the minimum cpu required (affects
                          instruction selection, may crash on older CPUs)
 --enable-powerpc-perf    enable performance report on PPC
                          (requires enabling PMC)
 --disable-mmx            disable MMX usage
 --disable-armv5te        disable armv5te usage
 --disable-armv6          disable armv6 usage
 --disable-iwmmxt         disable iwmmxt usage
 --disable-altivec        disable AltiVec usage
 --disable-audio-oss      disable OSS audio support [default=no]
 --disable-audio-beos     disable BeOS audio support [default=no]
 --disable-v4l            disable video4linux grabbing [default=no]
 --disable-v4l2           disable video4linux2 grabbing [default=no]
 --disable-bktr           disable bktr video grabbing [default=no]
 --disable-dv1394         disable DV1394 grabbing [default=no]
 --disable-network        disable network support [default=no]
 --disable-ipv6           disable ipv6 support [default=no]
 --disable-zlib           disable zlib [default=no]
 --disable-vhook          disable video hooking support
 --disable-debug          disable debugging symbols
 --disable-mpegaudio-hp   faster (but less accurate)
                          MPEG audio decoding [default=no]
 --disable-ffmpeg         disable ffmpeg build
 --disable-ffserver       disable ffserver build
 --disable-ffplay         disable ffplay build
 --enable-small           optimize for size instead of speed
 --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 --disable-encoder=NAME   disables encoder NAME
 --enable-encoder=NAME    enables encoder NAME
 --disable-decoder=NAME   disables decoder NAME
 --enable-decoder=NAME    enables decoder NAME
 --disable-encoders       disables all encoders
 --disable-decoders       disables all decoders
 --disable-muxer=NAME     disables muxer NAME
 --enable-muxer=NAME      enables muxer NAME
 --disable-muxers         disables all muxers
 --disable-demuxer=NAME   disables demuxer NAME
 --enable-demuxer=NAME    enables demuxer NAME
 --disable-demuxers       disables all demuxers
 --enable-parser=NAME     enables parser NAME
 --disable-parser=NAME    disables parser NAME
 --disable-parsers        disables all parsers
 --enable-bsf=NAME        enables bitstream filter NAME
 --disable-bsf=NAME       disables bitstream filter NAME
 --disable-bsfs           disables all bitstream filters
 --enable-protocol=NAME   enables protocol NAME
 --disable-protocol=NAME  disables protocol NAME
 --disable-protocols      disables all protocols
 --list-decoders          show all available decoders
 --list-encoders          show all available encoders
 --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

Developer options (useful when working on FFmpeg itself):

 --enable-gprof           enable profiling with gprof []
 --disable-opts           disable compiler optimizations
 --enable-extra-warnings  enable more compiler warnings
 --disable-strip          disable stripping of executables and shared libraries

NOTE: Object files are built at the place where configure is launched.

开发人员注意选项

 make之后会生成以下文件

• ffmpeg, ffplay, ffserver(不带调试信息)
• ffmpeg_g, ffplay_g(带调试信息)
  • xxx_g文件可以用gdb(ddd)来调试
  • 具体我也不是很清楚,以前我经常用ffplay来调试,我另加了configer选项,现在忘了.请知道者补充.

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