FFmpeg介绍与编译
作者：互联网
目录
FFmpeg
FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序。采用LGPL或GPL许可证。它提供了录制、转换以及流化音视频的完整解决方案。它包含了非常先进的音频/视频编解码库libavcodec，为了保证高可移植性和编解码质量，libavcodec里很多code都是从头开发的FFmpeg在Linux平台下开发，但它同样也可以在其它操作系统环境中编译运行，包括Windows、Mac OS X等。这个项目最早由Fabrice Bellard发起，2004年至2015年间由Michael Niedermayer主要负责维护。许多FFmpeg的开发人员都来自MPlayer项目，而且当前FFmpeg也是放在MPlayer项目组的服务器上。项目的名称来自MPEG视频编码标准，前面的"FF"代表"Fast Forward"。多媒体视频处理工具FFmpeg有非常强大的功能包括视频采集功能、视频格式转换、视频抓图、给视频加水印等。
FFmpeg核心模块
libavformat
用于各种音视频封装格式的生成和解析，包括获取解码所需信息以生成解码上下文结构和读取音视频帧等功能；音视频的格式解析协议，为 libavcodec 分析码流提供独立的音频或视频码流源。
libavcodec
用于各种类型声音/图像编解码；该库是音视频编解码核心，实现了市面上可见的绝大部分解码器的功能，libavcodec 库被其他各大解码器 ffdshow，Mplayer 等所包含或应用。
libavfilter
filter（FileIO、FPS、DrawText）音视频滤波器的开发，如水印、倍速播放等。
libavutil
包含一些公共的工具函数的使用库，包括算数运算 字符操作；
libswresample
原始音频格式转码。
libswscale
（原始视频格式转换）用于视频场景比例缩放、色彩映射转换；图像颜色空间或格式转换，如 rgb565,rgb888 等与 yuv420 等之间转换。
libpostproc+libavcodec
FFmpeg编译
ndk最新的发布版是r17，如果只能找到r16的下载地址，那只要把这个地址中的16改成17就可以了
https://baike.baidu.com/item/ffmpeg/2665727?fr=aladdin
FFmpeg是一个开源的音视频处理程序，也可以把它看成一个用于处理音视频的库。如果需要在Android中使用这个库，那就需要进行交叉编译。
从官网下载FFmpeg的源码：
wget https://ffmpeg.org/releases/ffmpeg-4.0.2.tar.bz2
下载完成后使用tar工具解压：
tar xvf ffmpeg-4.0.2.tar.bz2
解压出来后进入ffmpeg解压目录，可以看到里面有各种文件、文档。需要关注的是configure文件。这个文件本身就是一个shell脚本，作用为生成makfile文件，然后使用make执行。
使用configure --help命令可以查看configure命令的一些参数说明。
使用./configure --help > configrue.txt可以把configure命令的参数说明导出到configrue.txt文件中
下面是交叉编译shell脚本内容：
#!/bin/bash
#这里定义变量，后续会使用
#TOOLCHAIN 变量指向ndk中的交叉编译gcc所在的目录
TOOLCHAIN=$NDK_ROOT/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
#FLAGS与INCLUDES变量 可以从AS ndk工程的.externativeBuild/cmake/debug/armeabi-v7a/build.ninja中拷贝，需要注意的是**地址**
FLAGS="-isystem $NDK_ROOT/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=21 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -O0 -fPIC"
INCLUDES="-isystem $NDK_ROOT/sources/cxx-stl/llvm-libc++/include -isystem $NDK_ROOT/sources/android/support/include -isystem $NDK_ROOT/sources/cxx-stl/llvm-libc++abi/include"
#此变量用于编译完成之后的库与头文件存放在哪个目录
PREFIX=./android/armeabi-v7a2
#执行configure脚本，用于生成makefile
#--prefix : 安装目录
#--enable-small : 优化大小
#--disable-programs : 不编译ffmpeg程序(命令行工具)，我们是需要获得静态(动态)库。
#--disable-avdevice : 关闭avdevice模块，此模块在android中无用
#--disable-encoders : 关闭所有编码器 (播放不需要编码)
#--disable-muxers : 关闭所有复用器(封装器)，不需要生成mp4这样的文件，所以关闭
#--disable-filters :关闭视频滤镜
#--enable-cross-compile : 开启交叉编译（ffmpeg比较**跨平台**,并不是所有库都有这么happy的选项 ）
#--cross-prefix: 看右边的值应该就知道是干嘛的，gcc的前缀 xxx/xxx/xxx-gcc 则给xxx/xxx/xxx-
#disable-shared enable-static 不写也可以，默认就是这样的。
#--sysroot:
#--extra-cflags: 会传给gcc的参数
#--arch --target-os : 不给不行，为什么给这些值?
./configure \
--prefix=$PREFIX \
--enable-small \
--disable-programs \
--disable-avdevice \
--disable-encoders \
--disable-muxers \
--disable-filters \
--enable-cross-compile \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--disable-shared \
--enable-static \
--sysroot=$NDK_ROOT/platforms/android-21/arch-arm \
--extra-cflags="$FLAGS $INCLUDES" \
--extra-cflags="-isysroot $NDK_ROOT/sysroot" \
--arch=arm \
--target-os=android
#上面运行脚本生成makefile之后，使用make执行脚本
make clean
make install
我的脚本示例
#!/bin/bash
#执行生成makefile的shell脚本
PREFIX=./android/armeabi-v7a2
NDK_ROOT=/home/zuojie/android-ndk-r17c
CPU=arm-linux-androideabi
TOOLCHAIN=$NDK_ROOT/toolchains/$CPU-4.9/prebuilt/linux-x86_64
FLAGS="-isystem $NDK_ROOT/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=21 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -O0 -fPIC"
INCLUDES=" -isystem $NDK_ROOT/sources/android/support/include"
# \ 换行连接符
./configure --prefix=$PREFIX \
--enable-small \
--disable-programs \
--disable-avdevice \
--disable-postproc \
--disable-encoders \
--disable-muxers \
--disable-filters \
--enable-cross-compile \
--cross-prefix=$TOOLCHAIN/bin/$CPU- \
--disable-shared \
--enable-static \
--sysroot=$NDK_ROOT/platforms/android-21/arch-arm \
--extra-cflags="$FLAGS $INCLUDES" \
--extra-cflags="-isysroot $NDK_ROOT/sysroot/" \
--arch=arm \
--target-os=android
# 清理一下
make clean
#执行makefile
make install
当在执行这个脚本时，如果报下面错，则说明没有安装make，则使用sudo apt install make命令安装make
......
Enabled indevs:
build.sh: 35: build.sh: make: not found
build.sh: 37: build.sh: make: not found
最后执行成功后会在./android/armeabi-v7a2/目录下生成三个文件include-头文件,lib-静态库,share-示例
使用tar cvf ffmpeg.tar *命令将这三个文件夹压缩一下
当执行这个脚本后报错了，可以去ffmpeg的ffbuild/config.log文件，config.log是在编译时遇到问题时的记录日志，直接查看最后一行
我这使用aarch64-linux-android编译脚本报错后查看config.log文件，可以看出最后那三行说的很清楚是无法识别三个命令，需要将脚本中这三个命令删除，重新编译。
configure脚本文件参数说明：
Usage: configure [options]
Options: [defaults in brackets after descriptions]
帮助选项
Help options:
--help print this message [当前所看到的所有内容，就是用--help输出的帮助信息]
--quiet Suppress showing informative output [禁止显示信息输出，这个从来没有用过]
--list-decoders show all available decoders [显示所有可用的解码器](非常常用)
--list-encoders show all available encoders [显示所有可用的编码器](非常常用)
--list-hwaccels show all available hardware accelerators [显示所有可T用的硬件加速器]
--list-demuxers show all available demuxers [显示所有可用的解复用器]
--list-muxers show all available muxers [列出所有支持的封装]
--list-parsers show all available parsers [显示所有可用的解析器]
--list-protocols show all available protocols [列出支持的通信协议]
--list-bsfs show all available bitstream filters [显示所有可用的位流筛选器]
--list-indevs show all available input devices [显示所有可用的输入设备]
--list-outdevs show all available output devices [显示所有可用的输出设备]
--list-filters show all available filters [显示所有可用过滤器，当要做复杂特效时，就有用]
标准选项
Standard options:
--logfile=FILE log tests and output to FILE [ffbuild/config.log] [编译时日志信息输出路径，默认: ffbuild/config. log]
--disable-logging do not log configure debug information [关闭:不记录配置调试信息]
--fatal-warnings fail if any configure warning is generated [如果生成任何配置警告则失败，注意:不能加，因为编译过程中,警告是会有的]
--prefix=PREFIX install in PREFIX [/usr/local] [我们最终产出的目录，动态库，静态库] ( 非常常用)
--bindir=DIR install binaries in DIR [PREFIX/bin] [在目录中安装二进制文件] PREFIX
--datadir=DIR install data files in DIR [PREFIX/share/ffmpeg] [ 在目录中安装数据文件] PREFIX
--docdir=DIR install documentation in DIR [PREFIX/share/doc/ffmpeg] [在目录中安装文档] PREFIX
--libdir=DIR install libs in DIR [PREFIX/lib] [安装库到指定目录]
--shlibdir=DIR install shared libs in DIR [LIBDIR] [指定共享库路径]
--incdir=DIR install includes in DIR [PREFIX/include] [指定includes路径]
--mandir=DIR install man page in DIR [PREFIX/share/man] [指定man page路径]
--pkgconfigdir=DIR install pkg-config files in DIR [LIBDIR/pkgconfig] [在目录中安装pka配置文件]
--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) [使用rpath允许在路径中安装库，没有用过]
--install-name-dir=DIR Darwin directory name for installed targets [已安装目标的目录名]
许可选项
Licensing options:
--enable-gpl allow use of GPL code, the resulting libs [允许使用GPL]
and binaries will be under GPL [no]
--enable-version3 upgrade (L)GPL to version 3 [no] 更新GPL版本
--enable-nonfree allow use of nonfree code, the resulting libs
and binaries will be unredistributable [no] [允许使用非免费程序]
配置选项
Configuration options:
--disable-static do not build static libraries [no] [关闭静态库(默认开启)]
--enable-shared build shared libraries [no] [打开动态库(默认关闭)]
--enable-small optimize for size instead of speed [优化大小]
--disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary) [禁用实时的CPU效率检测]
--enable-gray enable full grayscale support (slower color) [启用灰度(颜色、空间转换)]
--disable-swscale-alpha disable alpha channel support in swscale [禁用swscale中的 透明度]
--disable-all disable building components, libraries and programs [禁用所有，包括组 件、库、程序]
--disable-autodetect disable automatically detected external libraries [no]
项目选项
Program options:
--disable-programs do not build command line programs [禁止生成所有exe]
--disable-ffmpeg disable ffmpeg build [禁止生成ffmpeg.exe]
--disable-ffplay disable ffplay build [禁止生成ffplay.exe]
--disable-ffprobe disable ffprobe build [禁止生成ffprobe.exe]
文档选项
Documentation options:
--disable-doc do not build documentation [禁止生成doc文件]
--disable-htmlpages do not build HTML documentation pages [禁止生成HTML文档页]
--disable-manpages do not build man documentation pages [禁止生成帮助文档页]
--disable-podpages do not build POD documentation pages [禁止生成POD文档页]
--disable-txtpages do not build text documentation pages [禁止生成txt文档页]
组件选项(FFmpeg是由多个模块组成的)
Component options:
--disable-avdevice disable libavdevice build [模块之一(可以操控我们的摄像头)(Android中不支持)]
--disable-avcodec disable libavcodec build [audio video codec(编码和解码)]
--disable-avformat disable libavformat build [音视频格式生成和解析相关]
--disable-swresample disable libswresample build [音频重采样(如果想把单声道，变成双声道)]
--disable-swscale disable libswscale build [对视频显示相关(对视频的缩放，放大缩小)]
--disable-postproc disable libpostproc build [后期处理，很少用，可以关闭掉]
--disable-avfilter disable libavfilter build [给视频加水印，加字幕，特殊效果]
--enable-avresample enable libavresample build (deprecated) [no]
--disable-pthreads disable pthreads [autodetect]
--disable-w32threads disable Win32 threads [autodetect]
--disable-os2threads disable OS/2 threads [autodetect]
--disable-network disable network support [no]
--disable-dct disable DCT code
--disable-dwt disable DWT code
--disable-error-resilience disable error resilience code
--disable-lsp disable LSP code
--disable-lzo disable LZO decoder code
--disable-mdct disable MDCT code
--disable-rdft disable RDFT code
--disable-fft disable FFT code
--disable-faan disable floating point AAN (I)DCT code
--disable-pixelutils disable pixel utils in libavutil
单个组件选项
Individual component options:
--disable-everything disable all components listed below [禁用下面已列出的全部组件]
--disable-encoder=NAME disable encoder NAME
--enable-encoder=NAME enable encoder NAME
--disable-encoders disable all encoders 如果我们去播放视频，不需要编码，那么此功能就可以关闭掉
--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
--enable-indev=NAME enable input device NAME
--disable-indev=NAME disable input device NAME
--disable-indevs disable input devices
--enable-outdev=NAME enable output device NAME
--disable-outdev=NAME disable output device NAME
--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
添加依赖库支持
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.
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]
--enable-avisynth enable reading of AviSynth script files [no]
--disable-bzlib disable bzlib [autodetect]
--disable-coreimage disable Apple CoreImage framework [autodetect]
--enable-chromaprint enable audio fingerprinting with chromaprint [no]
--enable-frei0r enable frei0r video filtering [no]
--enable-gcrypt enable gcrypt, needed for rtmp(t)e support
if openssl, librtmp or gmp is not used [no]
--enable-gmp enable gmp, needed for rtmp(t)e support
if openssl or librtmp is not used [no]
--enable-gnutls enable gnutls, needed for https support
if openssl or libtls is not used [no]
--disable-iconv disable iconv [autodetect]
--enable-jni enable JNI support [no]
--enable-ladspa enable LADSPA audio filtering [no]
--enable-libaom enable AV1 video encoding/decoding via libaom [no]
--enable-libass enable libass subtitles rendering,
needed for subtitles and ass filter [no]
--enable-libbluray enable BluRay reading using libbluray [no]
--enable-libbs2b enable bs2b DSP library [no]
--enable-libcaca enable textual display using libcaca [no]
--enable-libcelt enable CELT decoding via libcelt [no]
--enable-libcdio enable audio CD grabbing with libcdio [no]
--enable-libcodec2 enable codec2 en/decoding using libcodec2 [no]
--enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
and libraw1394 [no]
--enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
--enable-libflite enable flite (voice synthesis) support via libflite [no]
--enable-libfontconfig enable libfontconfig, useful for drawtext filter [no]
--enable-libfreetype enable libfreetype, needed for drawtext filter [no]
--enable-libfribidi enable libfribidi, improves drawtext filter [no]
--enable-libgme enable Game Music Emu via libgme [no]
--enable-libgsm enable GSM de/encoding via libgsm [no]
--enable-libiec61883 enable iec61883 via libiec61883 [no]
--enable-libilbc enable iLBC de/encoding via libilbc [no]
--enable-libjack enable JACK audio sound server [no]
--enable-libkvazaar enable HEVC encoding via libkvazaar [no]
--enable-libmodplug enable ModPlug via libmodplug [no]
--enable-libmp3lame enable MP3 encoding via libmp3lame [no]
--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-libopenh264 enable H.264 encoding via OpenH264 [no]
--enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
--enable-libopenmpt enable decoding tracked files via libopenmpt [no]
--enable-libopus enable Opus de/encoding via libopus [no]
--enable-libpulse enable Pulseaudio input via libpulse [no]
--enable-librsvg enable SVG rasterization via librsvg [no]
--enable-librubberband enable rubberband needed for rubberband filter [no]
--enable-librtmp enable RTMP[E] support via librtmp [no]
--enable-libshine enable fixed-point MP3 encoding via libshine [no]
--enable-libsmbclient enable Samba protocol via libsmbclient [no]
--enable-libsnappy enable Snappy compression, needed for hap encoding [no]
--enable-libsoxr enable Include libsoxr resampling [no]
--enable-libspeex enable Speex de/encoding via libspeex [no]
--enable-libsrt enable Haivision SRT protocol via libsrt [no]
--enable-libssh enable SFTP protocol via libssh [no]
--enable-libtesseract enable Tesseract, needed for ocr filter [no]
--enable-libtheora enable Theora encoding via libtheora [no]
--enable-libtls enable LibreSSL (via libtls), needed for https support
if openssl or gnutls is not used [no]
--enable-libtwolame enable MP2 encoding via libtwolame [no]
--enable-libv4l2 enable libv4l2/v4l-utils [no]
--enable-libvidstab enable video stabilization using vid.stab [no]
--enable-libvmaf enable vmaf filter via libvmaf [no]
--enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
--enable-libvorbis enable Vorbis en/decoding via libvorbis,
native implementation exists [no]
--enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
--enable-libwavpack enable wavpack encoding via libwavpack [no]
--enable-libwebp enable WebP encoding via libwebp [no]
--enable-libx264 enable H.264 encoding via x264 [no]
--enable-libx265 enable HEVC encoding via x265 [no]
--enable-libxavs enable AVS encoding via xavs [no]
--enable-libxcb enable X11 grabbing using XCB [autodetect]
--enable-libxcb-shm enable X11 grabbing shm communication [autodetect]
--enable-libxcb-xfixes enable X11 grabbing mouse rendering [autodetect]
--enable-libxcb-shape enable X11 grabbing shape rendering [autodetect]
--enable-libxvid enable Xvid encoding via xvidcore,
native MPEG-4/Xvid encoder exists [no]
--enable-libxml2 enable XML parsing using the C library libxml2 [no]
--enable-libzimg enable z.lib, needed for zscale filter [no]
--enable-libzmq enable message passing via libzmq [no]
--enable-libzvbi enable teletext support via libzvbi [no]
--enable-lv2 enable LV2 audio filtering [no]
--disable-lzma disable lzma [autodetect]
--enable-decklink enable Blackmagic DeckLink I/O support [no]
--enable-libndi_newtek enable Newteck NDI I/O support [no]
--enable-mediacodec enable Android MediaCodec support [no]
--enable-libmysofa enable libmysofa, needed for sofalizer filter [no]
--enable-openal enable OpenAL 1.1 capture support [no]
--enable-opencl enable OpenCL processing [no]
--enable-opengl enable OpenGL rendering [no]
--enable-openssl enable openssl, needed for https support
if gnutls or libtls is not used [no]
--disable-sndio disable sndio support [autodetect]
--disable-schannel disable SChannel SSP, needed for TLS support on
Windows if openssl and gnutls are not used [autodetect]
--disable-sdl2 disable sdl2 [autodetect]
--disable-securetransport disable Secure Transport, needed for TLS support
on OSX if openssl and gnutls are not used [autodetect]
--disable-xlib disable xlib [autodetect]
--disable-zlib disable zlib [autodetect]
The following libraries provide various hardware acceleration features:
--disable-amf disable AMF video encoding code [autodetect]
--disable-audiotoolbox disable Apple AudioToolbox code [autodetect]
--enable-cuda-sdk enable CUDA features that require the CUDA SDK [no]
--disable-cuvid disable Nvidia CUVID support [autodetect]
--disable-d3d11va disable Microsoft Direct3D 11 video acceleration code [autodetect]
--disable-dxva2 disable Microsoft DirectX 9 video acceleration code [autodetect]
--disable-ffnvcodec disable dynamically linked Nvidia code [autodetect]
--enable-libdrm enable DRM code (Linux) [no]
--enable-libmfx enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
--enable-libnpp enable Nvidia Performance Primitives-based code [no]
--enable-mmal enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
--disable-nvdec disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
--disable-nvenc disable Nvidia video encoding code [autodetect]
--enable-omx enable OpenMAX IL code [no]
--enable-omx-rpi enable OpenMAX IL code for Raspberry Pi [no]
--enable-rkmpp enable Rockchip Media Process Platform code [no]
--disable-v4l2-m2m disable V4L2 mem2mem code [autodetect]
--disable-vaapi disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
--disable-vdpau disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
--disable-videotoolbox disable VideoToolbox code [autodetect]
Toolchain options:
--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 []
--progs-suffix=SUFFIX program name suffix []
--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
--target-samples=DIR path to samples directory on target
--tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
--toolchain=NAME set tool defaults according to NAME
(gcc-asan, clang-asan, gcc-msan, clang-msan,
gcc-tsan, clang-tsan, gcc-usan, clang-usan,
valgrind-massif, valgrind-memcheck,
msvc, icl, gcov, llvm-cov, hardened)
--nm=NM use nm tool NM [nm -g]
--ar=AR use archive tool AR [ar]
--as=AS use assembler AS []
--ln_s=LN_S use symbolic link tool LN_S [ln -s -f]
--strip=STRIP use strip tool STRIP [strip]
--windres=WINDRES use windows resource compiler WINDRES [windres]
--x86asmexe=EXE use nasm-compatible assembler EXE [nasm]
--cc=CC use C compiler CC [gcc]
--cxx=CXX use C compiler CXX [g++]
--objcc=OCC use ObjC compiler OCC [gcc]
--dep-cc=DEPCC use dependency generator DEPCC [gcc]
--nvcc=NVCC use Nvidia CUDA compiler NVCC [nvcc]
--ld=LD use linker LD []
--pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [pkg-config]
--pkg-config-flags=FLAGS pass additional flags to pkgconf []
--ranlib=RANLIB use ranlib RANLIB [ranlib]
--doxygen=DOXYGEN use DOXYGEN to generate API doc [doxygen]
--host-cc=HOSTCC use host C compiler HOSTCC
--host-cflags=HCFLAGS use HCFLAGS when compiling for host
--host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
--host-ld=HOSTLD use host linker HOSTLD
--host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
--host-libs=HLIBS use libs HLIBS when linking for host
--host-os=OS compiler host OS []
--extra-cflags=ECFLAGS add ECFLAGS to CFLAGS []
--extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS []
--extra-objcflags=FLAGS add FLAGS to OBJCFLAGS []
--extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS []
--extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS []
--extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS []
--extra-libs=ELIBS add ELIBS []
--extra-version=STRING version string suffix []
--optflags=OPTFLAGS override optimization-related compiler flags
--nvccflags=NVCCFLAGS override nvcc flags [-gencode arch=compute_30,code=sm_30 -O2]
--build-suffix=SUFFIX library name suffix []
--enable-pic build position-independent code
--enable-thumb compile for Thumb instruction set
--enable-lto use link-time optimization
--env="ENV=override" override the environment variables
Advanced options (experts only):
--malloc-prefix=PREFIX prefix malloc and related names with PREFIX
--custom-allocator=NAME use a supported custom allocator
--disable-symver disable symbol versioning
--enable-hardcoded-tables use hardcoded tables instead of runtime generation
--disable-safe-bitstream-reader
disable buffer boundary checking in bitreaders
(faster, but may crash)
--sws-max-filter-size=N the max filter size swscale uses [256]
Optimization options (experts only):
--disable-asm disable all assembly optimizations
--disable-altivec disable AltiVec optimizations
--disable-vsx disable VSX optimizations
--disable-power8 disable POWER8 optimizations
--disable-amd3dnow disable 3DNow! optimizations
--disable-amd3dnowext disable 3DNow! extended optimizations
--disable-mmx disable MMX optimizations
--disable-mmxext disable MMXEXT optimizations
--disable-sse disable SSE optimizations
--disable-sse2 disable SSE2 optimizations
--disable-sse3 disable SSE3 optimizations
--disable-ssse3 disable SSSE3 optimizations
--disable-sse4 disable SSE4 optimizations
--disable-sse42 disable SSE4.2 optimizations
--disable-avx disable AVX optimizations
--disable-xop disable XOP optimizations
--disable-fma3 disable FMA3 optimizations
--disable-fma4 disable FMA4 optimizations
--disable-avx2 disable AVX2 optimizations
--disable-avx512 disable AVX-512 optimizations
--disable-aesni disable AESNI optimizations
--disable-armv5te disable armv5te optimizations
--disable-armv6 disable armv6 optimizations
--disable-armv6t2 disable armv6t2 optimizations
--disable-vfp disable VFP optimizations
--disable-neon disable NEON optimizations
--disable-inline-asm disable use of inline assembly
--disable-x86asm disable use of standalone x86 assembly
--disable-mipsdsp disable MIPS DSP ASE R1 optimizations
--disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
--disable-msa disable MSA optimizations
--disable-mipsfpu disable floating point MIPS optimizations
--disable-mmi disable Loongson SIMD optimizations
--disable-fast-unaligned consider unaligned accesses slow
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
--assert-level=level 0(default), 1 or 2, amount of assertion testing,
2 causes a slowdown at runtime.
--enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
--valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
leaks and errors, using the specified valgrind binary.
Cannot be combined with --target-exec
--enable-ftrapv Trap arithmetic overflows
--samples=PATH location of test samples for FATE, if not set use
$FATE_SAMPLES at make invocation time.
--enable-neon-clobber-test check NEON registers for clobbering (should be
used only for debugging purposes)
--enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
should be used only for debugging purposes)
--enable-random randomly enable/disable components
--disable-random
--enable-random=LIST randomly enable/disable specific components or
--disable-random=LIST component groups. LIST is a comma-separated list
of NAME[:PROB] entries where NAME is a component
(group) and PROB the probability associated with
NAME (default 0.5).
--random-seed=VALUE seed value for --enable/disable-random
--disable-valgrind-backtrace do not print a backtrace under Valgrind
(only applies to --disable-optimizations builds)
--enable-osfuzz Enable building fuzzer tool
--libfuzzer=PATH path to libfuzzer
--ignore-tests=TESTS comma-separated list (without "fate-" prefix
in the name) of tests whose result is ignored
--enable-linux-perf enable Linux Performance Monitor API
NOTE: Object files are built at the place where configure is launched.
标签：enable,FFmpeg,no,--,via,介绍,编译,disable,NAME 来源： https://www.cnblogs.com/zuojie/p/16461032.html