https://zhuanlan.zhihu.com/p/356411237
    第一部分是四个作用不同的工具软件，分别是：ffmpeg.exe，ffplay.exe，ffserver.exe和ffprobe.exe。
    ffmpeg.exe：音视频转码、转换器
    ffplay.exe：简单的音视频播放器
    ffserver.exe：流媒体服务器
    ffprobe.exe：简单的多媒体码流分析器

    mac默认安装的包
    https://trac.ffmpeg.org/wiki/CompilationGuide/macOS
    image.png

    1. giflib, highway, imath, jpeg-turbo, libpng, openexr, libtiff, webp, jpeg-xl, libvmaf, aom, dav1d, freetype, fontconfig, frei0r, ca-certificates, gmp, bdw-gc, libtool, guile, libidn2, libtasn1, nettle, p11-kit, openssl@1.1, libevent, libnghttp2, unbound, gnutls, lame, fribidi, pcre2, glib, libpthread-stubs, xorgproto, libxau, libxdmcp, libxcb, libx11, libxext, libxrender, lzo, pixman, cairo, graphite2, icu4c, harfbuzz, libass, libbluray, cjson, cmocka, mbedtls, librist, libsoxr, libvidstab, libogg, libvorbis, libvpx, opencore-amr, little-cms2, openjpeg, opus, rav1e, flac, libsndfile, libsamplerate, rubberband, sdl2, snappy, speex, srt, leptonica, libb2, lz4, xz, libarchive, tesseract, theora, x264, x265, xvid, libsodium, zeromq and zimg