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FFmpeg
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FFmpeg/configure

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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

  5. # Copyright (c) 2000-2002 Fabrice Bellard

  6. # Copyright (c) 2005-2008 Diego Biurrun

  7. # Copyright (c) 2005-2008 Mans Rullgard

  8. #

  9. 

  10. # Prevent locale nonsense from breaking basic text processing.

  11. LC_ALL=C

  12. export LC_ALL

  13. 

  14. # make sure we are running under a compatible shell

  15. # try to make this part work with most shells

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

  19.     type "$1" > /dev/null 2>&1 && exec "$@"

  20. }

  21. 

  22. unset foo

  23. (: ${foo%%bar}) 2> /dev/null

  24. E1="$?"

  25. 

  26. (: ${foo?}) 2> /dev/null

  27. E2="$?"

  28. 

  29. if test "$E1" != 0 || test "$E2" = 0; then

  30.     echo "Broken shell detected.  Trying alternatives."

  31.     export FF_CONF_EXEC

  32.     if test "0$FF_CONF_EXEC" -lt 1; then

  33.         FF_CONF_EXEC=1

  34.         try_exec bash "$0" "$@"

  35.     fi

  36.     if test "0$FF_CONF_EXEC" -lt 2; then

  37.         FF_CONF_EXEC=2

  38.         try_exec ksh "$0" "$@"

  39.     fi

  40.     if test "0$FF_CONF_EXEC" -lt 3; then

  41.         FF_CONF_EXEC=3

  42.         try_exec /usr/xpg4/bin/sh "$0" "$@"

  43.     fi

  44.     echo "No compatible shell script interpreter found."

  45.     echo "This configure script requires a POSIX-compatible shell"

  46.     echo "such as bash or ksh."

  47.     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."

  48.     echo "Instead, install a working POSIX-compatible shell."

  49.     echo "Disabling this configure test will create a broken FFmpeg."

  50.     if test "$BASH_VERSION" = '2.04.0(1)-release'; then

  51.         echo "This bash version ($BASH_VERSION) is broken on your platform."

  52.         echo "Upgrade to a later version if available."

  53.     fi

  54.     exit 1

  55. fi

  56. 

  57. test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

  69.   --list-hwaccels          show all available hardware accelerators

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

  74.   --list-bsfs              show all available bitstream filters

  75.   --list-indevs            show all available input devices

  76.   --list-outdevs           show all available output devices

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

  80.   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]

  81.   --disable-logging        do not log configure debug information

  82.   --fatal-warnings         fail if any configure warning is generated

  83.   --prefix=PREFIX          install in PREFIX [$prefix_default]

  84.   --bindir=DIR             install binaries in DIR [PREFIX/bin]

  85.   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]

  86.   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]

  87.   --libdir=DIR             install libs in DIR [PREFIX/lib]

  88.   --shlibdir=DIR           install shared libs in DIR [LIBDIR]

  89.   --incdir=DIR             install includes in DIR [PREFIX/include]

  90.   --mandir=DIR             install man page in DIR [PREFIX/share/man]

  91.   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]

  92.   --enable-rpath           use rpath to allow installing libraries in paths

  93.                            not part of the dynamic linker search path

  94.                            use rpath when linking programs (USE WITH CARE)

  95.   --install-name-dir=DIR   Darwin directory name for installed targets

  96. 

  97. Licensing options:

  98.   --enable-gpl             allow use of GPL code, the resulting libs

  99.                            and binaries will be under GPL [no]

  100.   --enable-version3        upgrade (L)GPL to version 3 [no]

  101.   --enable-nonfree         allow use of nonfree code, the resulting libs

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

  105.   --disable-static         do not build static libraries [no]

  106.   --enable-shared          build shared libraries [no]

  107.   --enable-small           optimize for size instead of speed

  108.   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)

  109.   --enable-gray            enable full grayscale support (slower color)

  110.   --disable-swscale-alpha  disable alpha channel support in swscale

  111.   --disable-all            disable building components, libraries and programs

  112.   --disable-autodetect     disable automatically detected external libraries [no]

  113. 

  114. Program options:

  115.   --disable-programs       do not build command line programs

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

  122.   --disable-htmlpages      do not build HTML documentation pages

  123.   --disable-manpages       do not build man documentation pages

  124.   --disable-podpages       do not build POD documentation pages

  125.   --disable-txtpages       do not build text documentation pages

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

  135.   --enable-avresample      enable libavresample build (deprecated) [no]

  136.   --disable-pthreads       disable pthreads [autodetect]

  137.   --disable-w32threads     disable Win32 threads [autodetect]

  138.   --disable-os2threads     disable OS/2 threads [autodetect]

  139.   --disable-network        disable network support [no]

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

  142.   --disable-error-resilience disable error resilience code

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

  148.   --disable-faan           disable floating point AAN (I)DCT code

  149.   --disable-pixelutils     disable pixel utils in libavutil

  150. 

  151. Individual component options:

  152.   --disable-everything     disable all components listed below

  153.   --disable-encoder=NAME   disable encoder NAME

  154.   --enable-encoder=NAME    enable encoder NAME

  155.   --disable-encoders       disable all encoders

  156.   --disable-decoder=NAME   disable decoder NAME

  157.   --enable-decoder=NAME    enable decoder NAME

  158.   --disable-decoders       disable all decoders

  159.   --disable-hwaccel=NAME   disable hwaccel NAME

  160.   --enable-hwaccel=NAME    enable hwaccel NAME

  161.   --disable-hwaccels       disable all hwaccels

  162.   --disable-muxer=NAME     disable muxer NAME

  163.   --enable-muxer=NAME      enable muxer NAME

  164.   --disable-muxers         disable all muxers

  165.   --disable-demuxer=NAME   disable demuxer NAME

  166.   --enable-demuxer=NAME    enable demuxer NAME

  167.   --disable-demuxers       disable all demuxers

  168.   --enable-parser=NAME     enable parser NAME

  169.   --disable-parser=NAME    disable parser NAME

  170.   --disable-parsers        disable all parsers

  171.   --enable-bsf=NAME        enable bitstream filter NAME

  172.   --disable-bsf=NAME       disable bitstream filter NAME

  173.   --disable-bsfs           disable all bitstream filters

  174.   --enable-protocol=NAME   enable protocol NAME

  175.   --disable-protocol=NAME  disable protocol NAME

  176.   --disable-protocols      disable all protocols

  177.   --enable-indev=NAME      enable input device NAME

  178.   --disable-indev=NAME     disable input device NAME

  179.   --disable-indevs         disable input devices

  180.   --enable-outdev=NAME     enable output device NAME

  181.   --disable-outdev=NAME    disable output device NAME

  182.   --disable-outdevs        disable output devices

  183.   --disable-devices        disable all devices

  184.   --enable-filter=NAME     enable filter NAME

  185.   --disable-filter=NAME    disable filter NAME

  186.   --disable-filters        disable all filters

  187. 

  188. External library support:

  189. 

  190.   Using any of the following switches will allow FFmpeg to link to the

  191.   corresponding external library. All the components depending on that library

  192.   will become enabled, if all their other dependencies are met and they are not

  193.   explicitly disabled. E.g. --enable-libwavpack will enable linking to

  194.   libwavpack and allow the libwavpack encoder to be built, unless it is

  195.   specifically disabled with --disable-encoder=libwavpack.

  196. 

  197.   Note that only the system libraries are auto-detected. All the other external

  198.   libraries must be explicitly enabled.

  199. 

  200.   Also note that the following help text describes the purpose of the libraries

  201.   themselves, not all their features will necessarily be usable by FFmpeg.

  202. 

  203.   --disable-alsa           disable ALSA support [autodetect]

  204.   --disable-appkit         disable Apple AppKit framework [autodetect]

  205.   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]

  206.   --enable-avisynth        enable reading of AviSynth script files [no]

  207.   --disable-bzlib          disable bzlib [autodetect]

  208.   --disable-coreimage      disable Apple CoreImage framework [autodetect]

  209.   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]

  210.   --enable-frei0r          enable frei0r video filtering [no]

  211.   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support

  212.                            if openssl, librtmp or gmp is not used [no]

  213.   --enable-gmp             enable gmp, needed for rtmp(t)e support

  214.                            if openssl or librtmp is not used [no]

  215.   --enable-gnutls          enable gnutls, needed for https support

  216.                            if openssl or libtls is not used [no]

  217.   --disable-iconv          disable iconv [autodetect]

  218.   --enable-jni             enable JNI support [no]

  219.   --enable-ladspa          enable LADSPA audio filtering [no]

  220.   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]

  221.   --enable-libass          enable libass subtitles rendering,

  222.                            needed for subtitles and ass filter [no]

  223.   --enable-libbluray       enable BluRay reading using libbluray [no]

  224.   --enable-libbs2b         enable bs2b DSP library [no]

  225.   --enable-libcaca         enable textual display using libcaca [no]

  226.   --enable-libcelt         enable CELT decoding via libcelt [no]

  227.   --enable-libcdio         enable audio CD grabbing with libcdio [no]

  228.   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]

  229.   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394

  230.                            and libraw1394 [no]

  231.   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]

  232.   --enable-libflite        enable flite (voice synthesis) support via libflite [no]

  233.   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]

  234.   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]

  235.   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]

  236.   --enable-libgme          enable Game Music Emu via libgme [no]

  237.   --enable-libgsm          enable GSM de/encoding via libgsm [no]

  238.   --enable-libiec61883     enable iec61883 via libiec61883 [no]

  239.   --enable-libilbc         enable iLBC de/encoding via libilbc [no]

  240.   --enable-libjack         enable JACK audio sound server [no]

  241.   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]

  242.   --enable-libmodplug      enable ModPlug via libmodplug [no]

  243.   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]

  244.   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]

  245.   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]

  246.   --enable-libopencv       enable video filtering via libopencv [no]

  247.   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]

  248.   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]

  249.   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]

  250.   --enable-libopus         enable Opus de/encoding via libopus [no]

  251.   --enable-libpulse        enable Pulseaudio input via libpulse [no]

  252.   --enable-librsvg         enable SVG rasterization via librsvg [no]

  253.   --enable-librubberband   enable rubberband needed for rubberband filter [no]

  254.   --enable-librtmp         enable RTMP[E] support via librtmp [no]

  255.   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]

  256.   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]

  257.   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]

  258.   --enable-libsoxr         enable Include libsoxr resampling [no]

  259.   --enable-libspeex        enable Speex de/encoding via libspeex [no]

  260.   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]

  261.   --enable-libssh          enable SFTP protocol via libssh [no]

  262.   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]

  263.   --enable-libtheora       enable Theora encoding via libtheora [no]

  264.   --enable-libtls          enable LibreSSL (via libtls), needed for https support

  265.                            if openssl or gnutls is not used [no]

  266.   --enable-libtwolame      enable MP2 encoding via libtwolame [no]

  267.   --enable-libv4l2         enable libv4l2/v4l-utils [no]

  268.   --enable-libvidstab      enable video stabilization using vid.stab [no]

  269.   --enable-libvmaf         enable vmaf filter via libvmaf [no]

  270.   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]

  271.   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,

  272.                            native implementation exists [no]

  273.   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]

  274.   --enable-libwavpack      enable wavpack encoding via libwavpack [no]

  275.   --enable-libwebp         enable WebP encoding via libwebp [no]

  276.   --enable-libx264         enable H.264 encoding via x264 [no]

  277.   --enable-libx265         enable HEVC encoding via x265 [no]

  278.   --enable-libxavs         enable AVS encoding via xavs [no]

  279.   --enable-libxcb          enable X11 grabbing using XCB [autodetect]

  280.   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]

  281.   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]

  282.   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]

  283.   --enable-libxvid         enable Xvid encoding via xvidcore,

  284.                            native MPEG-4/Xvid encoder exists [no]

  285.   --enable-libxml2         enable XML parsing using the C library libxml2, needed

  286.                            for dash demuxing support [no]

  287.   --enable-libzimg         enable z.lib, needed for zscale filter [no]

  288.   --enable-libzmq          enable message passing via libzmq [no]

  289.   --enable-libzvbi         enable teletext support via libzvbi [no]

  290.   --enable-lv2             enable LV2 audio filtering [no]

  291.   --disable-lzma           disable lzma [autodetect]

  292.   --enable-decklink        enable Blackmagic DeckLink I/O support [no]

  293.   --enable-libndi_newtek   enable Newteck NDI I/O support [no]

  294.   --enable-mediacodec      enable Android MediaCodec support [no]

  295.   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]

  296.   --enable-openal          enable OpenAL 1.1 capture support [no]

  297.   --enable-opencl          enable OpenCL processing [no]

  298.   --enable-opengl          enable OpenGL rendering [no]

  299.   --enable-openssl         enable openssl, needed for https support

  300.                            if gnutls or libtls is not used [no]

  301.   --disable-sndio          disable sndio support [autodetect]

  302.   --disable-schannel       disable SChannel SSP, needed for TLS support on

  303.                            Windows if openssl and gnutls are not used [autodetect]

  304.   --disable-sdl2           disable sdl2 [autodetect]

  305.   --disable-securetransport disable Secure Transport, needed for TLS support

  306.                            on OSX if openssl and gnutls are not used [autodetect]

  307.   --enable-vapoursynth     enable VapourSynth demuxer [no]

  308.   --disable-xlib           disable xlib [autodetect]

  309.   --disable-zlib           disable zlib [autodetect]

  310. 

  311.   The following libraries provide various hardware acceleration features:

  312.   --disable-amf            disable AMF video encoding code [autodetect]

  313.   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]

  314.   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]

  315.   --disable-cuvid          disable Nvidia CUVID support [autodetect]

  316.   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]

  317.   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]

  318.   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]

  319.   --enable-libdrm          enable DRM code (Linux) [no]

  320.   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]

  321.   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]

  322.   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]

  323.   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]

  324.   --disable-nvenc          disable Nvidia video encoding code [autodetect]

  325.   --enable-omx             enable OpenMAX IL code [no]

  326.   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]

  327.   --enable-rkmpp           enable Rockchip Media Process Platform code [no]

  328.   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]

  329.   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]

  330.   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]

  331.   --disable-videotoolbox   disable VideoToolbox code [autodetect]

  332. 

  333. Toolchain options:

  334.   --arch=ARCH              select architecture [$arch]

  335.   --cpu=CPU                select the minimum required CPU (affects

  336.                            instruction selection, may crash on older CPUs)

  337.   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]

  338.   --progs-suffix=SUFFIX    program name suffix []

  339.   --enable-cross-compile   assume a cross-compiler is used

  340.   --sysroot=PATH           root of cross-build tree

  341.   --sysinclude=PATH        location of cross-build system headers

  342.   --target-os=OS           compiler targets OS [$target_os]

  343.   --target-exec=CMD        command to run executables on target

  344.   --target-path=DIR        path to view of build directory on target

  345.   --target-samples=DIR     path to samples directory on target

  346.   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks

  347.   --toolchain=NAME         set tool defaults according to NAME

  348.                            (gcc-asan, clang-asan, gcc-msan, clang-msan,

  349.                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,

  350.                            valgrind-massif, valgrind-memcheck,

  351.                            msvc, icl, gcov, llvm-cov, hardened)

  352.   --nm=NM                  use nm tool NM [$nm_default]

  353.   --ar=AR                  use archive tool AR [$ar_default]

  354.   --as=AS                  use assembler AS [$as_default]

  355.   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]

  356.   --strip=STRIP            use strip tool STRIP [$strip_default]

  357.   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]

  358.   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]

  359.   --cc=CC                  use C compiler CC [$cc_default]

  360.   --cxx=CXX                use C compiler CXX [$cxx_default]

  361.   --objcc=OCC              use ObjC compiler OCC [$cc_default]

  362.   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]

  363.   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]

  364.   --ld=LD                  use linker LD [$ld_default]

  365.   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]

  366.   --pkg-config-flags=FLAGS pass additional flags to pkgconf []

  367.   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]

  368.   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]

  369.   --host-cc=HOSTCC         use host C compiler HOSTCC

  370.   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host

  371.   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host

  372.   --host-ld=HOSTLD         use host linker HOSTLD

  373.   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host

  374.   --host-libs=HLIBS        use libs HLIBS when linking for host

  375.   --host-os=OS             compiler host OS [$target_os]

  376.   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]

  377.   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]

  378.   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]

  379.   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]

  380.   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]

  381.   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]

  382.   --extra-libs=ELIBS       add ELIBS [$ELIBS]

  383.   --extra-version=STRING   version string suffix []

  384.   --optflags=OPTFLAGS      override optimization-related compiler flags

  385.   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]

  386.   --build-suffix=SUFFIX    library name suffix []

  387.   --enable-pic             build position-independent code

  388.   --enable-thumb           compile for Thumb instruction set

  389.   --enable-lto             use link-time optimization

  390.   --env="ENV=override"     override the environment variables

  391. 

  392. Advanced options (experts only):

  393.   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX

  394.   --custom-allocator=NAME  use a supported custom allocator

  395.   --disable-symver         disable symbol versioning

  396.   --enable-hardcoded-tables use hardcoded tables instead of runtime generation

  397.   --disable-safe-bitstream-reader

  398.                            disable buffer boundary checking in bitreaders

  399.                            (faster, but may crash)

  400.   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]

  401. 

  402. Optimization options (experts only):

  403.   --disable-asm            disable all assembly optimizations

  404.   --disable-altivec        disable AltiVec optimizations

  405.   --disable-vsx            disable VSX optimizations

  406.   --disable-power8         disable POWER8 optimizations

  407.   --disable-amd3dnow       disable 3DNow! optimizations

  408.   --disable-amd3dnowext    disable 3DNow! extended optimizations

  409.   --disable-mmx            disable MMX optimizations

  410.   --disable-mmxext         disable MMXEXT optimizations

  411.   --disable-sse            disable SSE optimizations

  412.   --disable-sse2           disable SSE2 optimizations

  413.   --disable-sse3           disable SSE3 optimizations

  414.   --disable-ssse3          disable SSSE3 optimizations

  415.   --disable-sse4           disable SSE4 optimizations

  416.   --disable-sse42          disable SSE4.2 optimizations

  417.   --disable-avx            disable AVX optimizations

  418.   --disable-xop            disable XOP optimizations

  419.   --disable-fma3           disable FMA3 optimizations

  420.   --disable-fma4           disable FMA4 optimizations

  421.   --disable-avx2           disable AVX2 optimizations

  422.   --disable-avx512         disable AVX-512 optimizations

  423.   --disable-aesni          disable AESNI optimizations

  424.   --disable-armv5te        disable armv5te optimizations

  425.   --disable-armv6          disable armv6 optimizations

  426.   --disable-armv6t2        disable armv6t2 optimizations

  427.   --disable-vfp            disable VFP optimizations

  428.   --disable-neon           disable NEON optimizations

  429.   --disable-inline-asm     disable use of inline assembly

  430.   --disable-x86asm         disable use of standalone x86 assembly

  431.   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations

  432.   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations

  433.   --disable-msa            disable MSA optimizations

  434.   --disable-mipsfpu        disable floating point MIPS optimizations

  435.   --disable-mmi            disable Loongson SIMD optimizations

  436.   --disable-fast-unaligned consider unaligned accesses slow

  437. 

  438. Developer options (useful when working on FFmpeg itself):

  439.   --disable-debug          disable debugging symbols

  440.   --enable-debug=LEVEL     set the debug level [$debuglevel]

  441.   --disable-optimizations  disable compiler optimizations

  442.   --enable-extra-warnings  enable more compiler warnings

  443.   --disable-stripping      disable stripping of executables and shared libraries

  444.   --assert-level=level     0(default), 1 or 2, amount of assertion testing,

  445.                            2 causes a slowdown at runtime.

  446.   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data

  447.   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory

  448.                            leaks and errors, using the specified valgrind binary.

  449.                            Cannot be combined with --target-exec

  450.   --enable-ftrapv          Trap arithmetic overflows

  451.   --samples=PATH           location of test samples for FATE, if not set use

  452.                            \$FATE_SAMPLES at make invocation time.

  453.   --enable-neon-clobber-test check NEON registers for clobbering (should be

  454.                            used only for debugging purposes)

  455.   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;

  456.                            should be used only for debugging purposes)

  457.   --enable-random          randomly enable/disable components

  458.   --disable-random

  459.   --enable-random=LIST     randomly enable/disable specific components or

  460.   --disable-random=LIST    component groups. LIST is a comma-separated list

  461.                            of NAME[:PROB] entries where NAME is a component

  462.                            (group) and PROB the probability associated with

  463.                            NAME (default 0.5).

  464.   --random-seed=VALUE      seed value for --enable/disable-random

  465.   --disable-valgrind-backtrace do not print a backtrace under Valgrind

  466.                            (only applies to --disable-optimizations builds)

  467.   --enable-osfuzz          Enable building fuzzer tool

  468.   --libfuzzer=PATH         path to libfuzzer

  469.   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix

  470.                            in the name) of tests whose result is ignored

  471.   --enable-linux-perf      enable Linux Performance Monitor API

  472. 

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

  474. EOF

  475.   exit 0

  476. }

  477. 

  478. if test -t 1 && which tput >/dev/null 2>&1; then

  479.     ncolors=$(tput colors)

  480.     if test -n "$ncolors" && test $ncolors -ge 8; then

  481.         bold_color=$(tput bold)

  482.         warn_color=$(tput setaf 3)

  483.         error_color=$(tput setaf 1)

  484.         reset_color=$(tput sgr0)

  485.     fi

  486.     # 72 used instead of 80 since that's the default of pr

  487.     ncols=$(tput cols)

  488. fi

  489. : ${ncols:=72}

  490. 

  491. log(){

  492.     echo "$@" >> $logfile

  493. }

  494. 

  495. log_file(){

  496.     log BEGIN $1

  497.     pr -n -t $1 >> $logfile

  498.     log END $1

  499. }

  500. 

  501. warn(){

  502.     log "WARNING: $*"

  503.     WARNINGS="${WARNINGS}WARNING: $*\n"

  504. }

  505. 

  506. die(){

  507.     log "$@"

  508.     echo "$error_color$bold_color$@$reset_color"

  509.     cat <<EOF

  510. 

  511. If you think configure made a mistake, make sure you are using the latest

  512. version from Git.  If the latest version fails, report the problem to the

  513. ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.

  514. EOF

  515.     if disabled logging; then

  516.         cat <<EOF

  517. Rerun configure with logging enabled (do not use --disable-logging), and

  518. include the log this produces with your report.

  519. EOF

  520.     else

  521.         cat <<EOF

  522. Include the log file "$logfile" produced by configure as this will help

  523. solve the problem.

  524. EOF

  525.     fi

  526.     exit 1

  527. }

  528. 

  529. # Avoid locale weirdness, besides we really just want to translate ASCII.

  530. toupper(){

  531.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  532. }

  533. 

  534. tolower(){

  535.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  536. }

  537. 

  538. c_escape(){

  539.     echo "$*" | sed 's/["\\]/\\\0/g'

  540. }

  541. 

  542. sh_quote(){

  543.     v=$(echo "$1" | sed "s/'/'\\\\''/g")

  544.     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"

  545.     echo "$v"

  546. }

  547. 

  548. cleanws(){

  549.     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'

  550. }

  551. 

  552. filter(){

  553.     pat=$1

  554.     shift

  555.     for v; do

  556.         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"

  557.     done

  558. }

  559. 

  560. filter_out(){

  561.     pat=$1

  562.     shift

  563.     for v; do

  564.         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"

  565.     done

  566. }

  567. 

  568. map(){

  569.     m=$1

  570.     shift

  571.     for v; do eval $m; done

  572. }

  573. 

  574. add_suffix(){

  575.     suffix=$1

  576.     shift

  577.     for v; do echo ${v}${suffix}; done

  578. }

  579. 

  580. remove_suffix(){

  581.     suffix=$1

  582.     shift

  583.     for v; do echo ${v%$suffix}; done

  584. }

  585. 

  586. set_all(){

  587.     value=$1

  588.     shift

  589.     for var in $*; do

  590.         eval $var=$value

  591.     done

  592. }

  593. 

  594. set_weak(){

  595.     value=$1

  596.     shift

  597.     for var; do

  598.         eval : \${$var:=$value}

  599.     done

  600. }

  601. 

  602. sanitize_var_name(){

  603.     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'

  604. }

  605. 

  606. set_sanitized(){

  607.     var=$1

  608.     shift

  609.     eval $(sanitize_var_name "$var")='$*'

  610. }

  611. 

  612. get_sanitized(){

  613.     eval echo \$$(sanitize_var_name "$1")

  614. }

  615. 

  616. pushvar(){

  617.     for pvar in $*; do

  618.         eval level=\${${pvar}_level:=0}

  619.         eval ${pvar}_${level}="\$$pvar"

  620.         eval ${pvar}_level=$(($level+1))

  621.     done

  622. }

  623. 

  624. popvar(){

  625.     for pvar in $*; do

  626.         eval level=\${${pvar}_level:-0}

  627.         test $level = 0 && continue

  628.         eval level=$(($level-1))

  629.         eval $pvar="\${${pvar}_${level}}"

  630.         eval ${pvar}_level=$level

  631.         eval unset ${pvar}_${level}

  632.     done

  633. }

  634. 

  635. request(){

  636.     for var in $*; do

  637.         eval ${var}_requested=yes

  638.         eval $var=

  639.     done

  640. }

  641. 

  642. enable(){

  643.     set_all yes $*

  644. }

  645. 

  646. disable(){

  647.     set_all no $*

  648. }

  649. 

  650. enable_weak(){

  651.     set_weak yes $*

  652. }

  653. 

  654. disable_weak(){

  655.     set_weak no $*

  656. }

  657. 

  658. enable_sanitized(){

  659.     for var; do

  660.         enable $(sanitize_var_name $var)

  661.     done

  662. }

  663. 

  664. disable_sanitized(){

  665.     for var; do

  666.         disable $(sanitize_var_name $var)

  667.     done

  668. }

  669. 

  670. do_enable_deep(){

  671.     for var; do

  672.         enabled $var && continue

  673.         eval sel="\$${var}_select"

  674.         eval sgs="\$${var}_suggest"

  675.         pushvar var sgs

  676.         enable_deep $sel

  677.         popvar sgs

  678.         enable_deep_weak $sgs

  679.         popvar var

  680.     done

  681. }

  682. 

  683. enable_deep(){

  684.     do_enable_deep $*

  685.     enable $*

  686. }

  687. 

  688. enable_deep_weak(){

  689.     for var; do

  690.         disabled $var && continue

  691.         pushvar var

  692.         do_enable_deep $var

  693.         popvar var

  694.         enable_weak $var

  695.     done

  696. }

  697. 

  698. requested(){

  699.     test "${1#!}" = "$1" && op="=" || op="!="

  700.     eval test "x\$${1#!}_requested" $op "xyes"

  701. }

  702. 

  703. enabled(){

  704.     test "${1#!}" = "$1" && op="=" || op="!="

  705.     eval test "x\$${1#!}" $op "xyes"

  706. }

  707. 

  708. disabled(){

  709.     test "${1#!}" = "$1" && op="=" || op="!="

  710.     eval test "x\$${1#!}" $op "xno"

  711. }

  712. 

  713. enabled_all(){

  714.     for opt; do

  715.         enabled $opt || return 1

  716.     done

  717. }

  718. 

  719. disabled_all(){

  720.     for opt; do

  721.         disabled $opt || return 1

  722.     done

  723. }

  724. 

  725. enabled_any(){

  726.     for opt; do

  727.         enabled $opt && return 0

  728.     done

  729. }

  730. 

  731. disabled_any(){

  732.     for opt; do

  733.         disabled $opt && return 0

  734.     done

  735.     return 1

  736. }

  737. 

  738. set_default(){

  739.     for opt; do

  740.         eval : \${$opt:=\$${opt}_default}

  741.     done

  742. }

  743. 

  744. is_in(){

  745.     value=$1

  746.     shift

  747.     for var in $*; do

  748.         [ $var = $value ] && return 0

  749.     done

  750.     return 1

  751. }

  752. 

  753. check_deps(){

  754.     for cfg; do

  755.         enabled ${cfg}_checking && die "Circular dependency for $cfg."

  756.         disabled ${cfg}_checking && continue

  757.         enable ${cfg}_checking

  758. 

  759.         eval dep_all="\$${cfg}_deps"

  760.         eval dep_any="\$${cfg}_deps_any"

  761.         eval dep_con="\$${cfg}_conflict"

  762.         eval dep_sel="\$${cfg}_select"

  763.         eval dep_sgs="\$${cfg}_suggest"

  764.         eval dep_ifa="\$${cfg}_if"

  765.         eval dep_ifn="\$${cfg}_if_any"

  766. 

  767.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  768.         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn

  769.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  770. 

  771.         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }

  772.         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }

  773.         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }

  774.         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }

  775.         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }

  776.         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }

  777. 

  778.         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs

  779. 

  780.         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do

  781.             # filter out library deps, these do not belong in extralibs

  782.             is_in $dep $LIBRARY_LIST && continue

  783.             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs

  784.         done

  785. 

  786.         disable ${cfg}_checking

  787.     done

  788. }

  789. 

  790. print_config(){

  791.     pfx=$1

  792.     files=$2

  793.     shift 2

  794.     map 'eval echo "$v \${$v:-no}"' "$@" |

  795.     awk "BEGIN { split(\"$files\", files) }

  796.         {

  797.             c = \"$pfx\" toupper(\$1);

  798.             v = \$2;

  799.             sub(/yes/, 1, v);

  800.             sub(/no/,  0, v);

  801.             for (f in files) {

  802.                 file = files[f];

  803.                 if (file ~ /\\.h\$/) {

  804.                     printf(\"#define %s %d\\n\", c, v) >>file;

  805.                 } else if (file ~ /\\.asm\$/) {

  806.                     printf(\"%%define %s %d\\n\", c, v) >>file;

  807.                 } else if (file ~ /\\.mak\$/) {

  808.                     n = -v ? \"\" : \"!\";

  809.                     printf(\"%s%s=yes\\n\", n, c) >>file;

  810.                 } else if (file ~ /\\.texi\$/) {

  811.                     pre = -v ? \"\" : \"@c \";

  812.                     yesno = \$2;

  813.                     c2 = tolower(c);

  814.                     gsub(/_/, \"-\", c2);

  815.                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;

  816.                 }

  817.             }

  818.         }"

  819. }

  820. 

  821. print_enabled(){

  822.     suf=$1

  823.     shift

  824.     for v; do

  825.         enabled $v && printf "%s\n" ${v%$suf}

  826.     done

  827. }

  828. 

  829. append(){

  830.     var=$1

  831.     shift

  832.     eval "$var=\"\$$var $*\""

  833. }

  834. 

  835. prepend(){

  836.     var=$1

  837.     shift

  838.     eval "$var=\"$* \$$var\""

  839. }

  840. 

  841. unique(){

  842.     var=$1

  843.     uniq_list=""

  844.     for tok in $(eval echo \$$var); do

  845.         uniq_list="$(filter_out $tok $uniq_list) $tok"

  846.     done

  847.     eval "$var=\"${uniq_list}\""

  848. }

  849. 

  850. resolve(){

  851.     var=$1

  852.     tmpvar=

  853.     for entry in $(eval echo \$$var); do

  854.         tmpvar="$tmpvar $(eval echo \$${entry})"

  855.     done

  856.     eval "$var=\"${tmpvar}\""

  857. }

  858. 

  859. add_cppflags(){

  860.     append CPPFLAGS "$@"

  861. }

  862. 

  863. add_cflags(){

  864.     append CFLAGS $($cflags_filter "$@")

  865. }

  866. 

  867. add_cflags_headers(){

  868.     append CFLAGS_HEADERS $($cflags_filter "$@")

  869. }

  870. 

  871. add_cxxflags(){

  872.     append CXXFLAGS $($cflags_filter "$@")

  873. }

  874. 

  875. add_asflags(){

  876.     append ASFLAGS $($asflags_filter "$@")

  877. }

  878. 

  879. add_objcflags(){

  880.     append OBJCFLAGS $($objcflags_filter "$@")

  881. }

  882. 

  883. add_ldflags(){

  884.     append LDFLAGS $($ldflags_filter "$@")

  885. }

  886. 

  887. add_ldexeflags(){

  888.     append LDEXEFLAGS $($ldflags_filter "$@")

  889. }

  890. 

  891. add_ldsoflags(){

  892.     append LDSOFLAGS $($ldflags_filter "$@")

  893. }

  894. 

  895. add_stripflags(){

  896.     append ASMSTRIPFLAGS "$@"

  897. }

  898. 

  899. add_extralibs(){

  900.     prepend extralibs $($ldflags_filter "$@")

  901. }

  902. 

  903. add_host_cppflags(){

  904.     append host_cppflags "$@"

  905. }

  906. 

  907. add_host_cflags(){

  908.     append host_cflags $($host_cflags_filter "$@")

  909. }

  910. 

  911. add_host_ldflags(){

  912.     append host_ldflags $($host_ldflags_filter "$@")

  913. }

  914. 

  915. add_compat(){

  916.     append compat_objs $1

  917.     shift

  918.     map 'add_cppflags -D$v' "$@"

  919. }

  920. 

  921. test_cmd(){

  922.     log "$@"

  923.     "$@" >> $logfile 2>&1

  924. }

  925. 

  926. test_stat(){

  927.     log test_stat "$@"

  928.     stat "$1" >> $logfile 2>&1

  929. }

  930. 

  931. cc_o(){

  932.     eval printf '%s\\n' $CC_O

  933. }

  934. 

  935. cc_e(){

  936.     eval printf '%s\\n' $CC_E

  937. }

  938. 

  939. test_cc(){

  940.     log test_cc "$@"

  941.     cat > $TMPC

  942.     log_file $TMPC

  943.     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC

  944. }

  945. 

  946. test_cxx(){

  947.     log test_cxx "$@"

  948.     cat > $TMPCPP

  949.     log_file $TMPCPP

  950.     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP

  951. }

  952. 

  953. test_objcc(){

  954.     log test_objcc "$@"

  955.     cat > $TMPM

  956.     log_file $TMPM

  957.     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM

  958. }

  959. 

  960. test_cpp(){

  961.     log test_cpp "$@"

  962.     cat > $TMPC

  963.     log_file $TMPC

  964.     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC

  965. }

  966. 

  967. as_o(){

  968.     eval printf '%s\\n' $AS_O

  969. }

  970. 

  971. test_as(){

  972.     log test_as "$@"

  973.     cat > $TMPS

  974.     log_file $TMPS

  975.     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS

  976. }

  977. 

  978. x86asm_o(){

  979.     eval printf '%s\\n' $X86ASM_O

  980. }

  981. 

  982. test_x86asm(){

  983.     log test_x86asm "$@"

  984.     echo "$1" > $TMPASM

  985.     log_file $TMPASM

  986.     shift

  987.     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM

  988. }

  989. 

  990. check_cmd(){

  991.     log check_cmd "$@"

  992.     cmd=$1

  993.     disabled $cmd && return

  994.     disable $cmd

  995.     test_cmd $@ && enable $cmd

  996. }

  997. 

  998. check_as(){

  999.     log check_as "$@"

  1000.     name=$1

  1001.     code=$2

  1002.     shift 2

  1003.     disable $name

  1004.     test_as $@ <<EOF && enable $name

  1005. $code

  1006. EOF

  1007. }

  1008. 

  1009. check_inline_asm(){

  1010.     log check_inline_asm "$@"

  1011.     name="$1"

  1012.     code="$2"

  1013.     shift 2

  1014.     disable $name

  1015.     test_cc "$@" <<EOF && enable $name

  1016. void foo(void){ __asm__ volatile($code); }

  1017. EOF

  1018. }

  1019. 

  1020. check_inline_asm_flags(){

  1021.     log check_inline_asm_flags "$@"

  1022.     name="$1"

  1023.     code="$2"

  1024.     flags=''

  1025.     shift 2

  1026.     while [ "$1" != "" ]; do

  1027.       append flags $1

  1028.       shift

  1029.     done;

  1030.     disable $name

  1031.     cat > $TMPC <<EOF

  1032. void foo(void){ __asm__ volatile($code); }

  1033. EOF

  1034.     log_file $TMPC

  1035.     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&

  1036.     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags

  1037. }

  1038. 

  1039. check_insn(){

  1040.     log check_insn "$@"

  1041.     check_inline_asm ${1}_inline "$2"

  1042.     check_as ${1}_external "$2"

  1043. }

  1044. 

  1045. check_x86asm(){

  1046.     log check_x86asm "$@"

  1047.     name=$1

  1048.     shift

  1049.     disable $name

  1050.     test_x86asm "$@" && enable $name

  1051. }

  1052. 

  1053. ld_o(){

  1054.     eval printf '%s\\n' $LD_O

  1055. }

  1056. 

  1057. test_ld(){

  1058.     log test_ld "$@"

  1059.     type=$1

  1060.     shift 1

  1061.     flags=$(filter_out '-l*|*.so' $@)

  1062.     libs=$(filter '-l*|*.so' $@)

  1063.     test_$type $($cflags_filter $flags) || return

  1064.     flags=$($ldflags_filter $flags)

  1065.     libs=$($ldflags_filter $libs)

  1066.     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1067. }

  1068. 

  1069. check_ld(){

  1070.     log check_ld "$@"

  1071.     type=$1

  1072.     name=$2

  1073.     shift 2

  1074.     disable $name

  1075.     test_ld $type $@ && enable $name

  1076. }

  1077. 

  1078. print_include(){

  1079.     hdr=$1

  1080.     test "${hdr%.h}" = "${hdr}" &&

  1081.         echo "#include $hdr"    ||

  1082.         echo "#include <$hdr>"

  1083. }

  1084. 

  1085. test_code(){

  1086.     log test_code "$@"

  1087.     check=$1

  1088.     headers=$2

  1089.     code=$3

  1090.     shift 3

  1091.     {

  1092.         for hdr in $headers; do

  1093.             print_include $hdr

  1094.         done

  1095.         echo "int main(void) { $code; return 0; }"

  1096.     } | test_$check "$@"

  1097. }

  1098. 

  1099. check_cppflags(){

  1100.     log check_cppflags "$@"

  1101.     test_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1102. #include <stdlib.h>

  1103. EOF

  1104. }

  1105. 

  1106. test_cflags(){

  1107.     log test_cflags "$@"

  1108.     set -- $($cflags_filter "$@")

  1109.     test_cc "$@" <<EOF

  1110. int x;

  1111. EOF

  1112. }

  1113. 

  1114. check_cflags(){

  1115.     log check_cflags "$@"

  1116.     test_cflags "$@" && add_cflags "$@"

  1117. }

  1118. 

  1119. check_cxxflags(){

  1120.     log check_cxxflags "$@"

  1121.     set -- $($cflags_filter "$@")

  1122.     test_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1123. int x;

  1124. EOF

  1125. }

  1126. 

  1127. test_objcflags(){

  1128.     log test_objcflags "$@"

  1129.     set -- $($objcflags_filter "$@")

  1130.     test_objcc "$@" <<EOF

  1131. int x;

  1132. EOF

  1133. }

  1134. 

  1135. check_objcflags(){

  1136.     log check_objcflags "$@"

  1137.     test_objcflags "$@" && add_objcflags "$@"

  1138. }

  1139. 

  1140. test_ldflags(){

  1141.     log test_ldflags "$@"

  1142.     set -- $($ldflags_filter "$@")

  1143.     test_ld "cc" "$@" <<EOF

  1144. int main(void){ return 0; }

  1145. EOF

  1146. }

  1147. 

  1148. check_ldflags(){

  1149.     log check_ldflags "$@"

  1150.     test_ldflags "$@" && add_ldflags "$@"

  1151. }

  1152. 

  1153. test_stripflags(){

  1154.     log test_stripflags "$@"

  1155.     # call test_cc to get a fresh TMPO

  1156.     test_cc <<EOF

  1157. int main(void) { return 0; }

  1158. EOF

  1159.     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1160. }

  1161. 

  1162. check_stripflags(){

  1163.     log check_stripflags "$@"

  1164.     test_stripflags "$@" && add_stripflags "$@"

  1165. }

  1166. 

  1167. check_header(){

  1168.     log check_header "$@"

  1169.     headers=$1

  1170.     shift

  1171.     disable_sanitized $headers

  1172.     {

  1173.         for hdr in $headers; do

  1174.             print_include $hdr

  1175.         done

  1176.         echo "int x;"

  1177.     } | test_cpp "$@" && enable_sanitized $headers

  1178. }

  1179. 

  1180. check_header_objcc(){

  1181.     log check_header_objcc "$@"

  1182.     rm -f -- "$TMPO"

  1183.     header=$1

  1184.     shift

  1185.     disable_sanitized $header

  1186.     {

  1187.        echo "#include <$header>"

  1188.        echo "int main(void) { return 0; }"

  1189.     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header

  1190. }

  1191. 

  1192. check_apple_framework(){

  1193.     log check_apple_framework "$@"

  1194.     framework="$1"

  1195.     name="$(tolower $framework)"

  1196.     header="${framework}/${framework}.h"

  1197.     disable $name

  1198.     check_header_objcc $header &&

  1199.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1200. }

  1201. 

  1202. check_func(){

  1203.     log check_func "$@"

  1204.     func=$1

  1205.     shift

  1206.     disable $func

  1207.     test_ld "cc" "$@" <<EOF && enable $func

  1208. extern int $func();

  1209. int main(void){ $func(); }

  1210. EOF

  1211. }

  1212. 

  1213. check_complexfunc(){

  1214.     log check_complexfunc "$@"

  1215.     func=$1

  1216.     narg=$2

  1217.     shift 2

  1218.     test $narg = 2 && args="f, g" || args="f * I"

  1219.     disable $func

  1220.     test_ld "cc" "$@" <<EOF && enable $func

  1221. #include <complex.h>

  1222. #include <math.h>

  1223. float foo(complex float f, complex float g) { return $func($args); }

  1224. int main(void){ return (int) foo; }

  1225. EOF

  1226. }

  1227. 

  1228. check_mathfunc(){

  1229.     log check_mathfunc "$@"

  1230.     func=$1

  1231.     narg=$2

  1232.     shift 2

  1233.     test $narg = 2 && args="f, g" || args="f"

  1234.     disable $func

  1235.     test_ld "cc" "$@" <<EOF && enable $func

  1236. #include <math.h>

  1237. float foo(float f, float g) { return $func($args); }

  1238. int main(void){ return (int) foo; }

  1239. EOF

  1240. }

  1241. 

  1242. check_func_headers(){

  1243.     log check_func_headers "$@"

  1244.     headers=$1

  1245.     funcs=$2

  1246.     shift 2

  1247.     {

  1248.         for hdr in $headers; do

  1249.             print_include $hdr

  1250.         done

  1251.         echo "#include <stdint.h>"

  1252.         for func in $funcs; do

  1253.             echo "long check_$func(void) { return (long) $func; }"

  1254.         done

  1255.         echo "int main(void) { int ret = 0;"

  1256.         # LTO could optimize out the test functions without this

  1257.         for func in $funcs; do

  1258.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1259.         done

  1260.         echo "return ret; }"

  1261.     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1262. }

  1263. 

  1264. check_class_headers_cpp(){

  1265.     log check_class_headers_cpp "$@"

  1266.     headers=$1

  1267.     classes=$2

  1268.     shift 2

  1269.     {

  1270.         for hdr in $headers; do

  1271.             echo "#include <$hdr>"

  1272.         done

  1273.         echo "int main(void) { "

  1274.         i=1

  1275.         for class in $classes; do

  1276.             echo "$class obj$i;"

  1277.             i=$(expr $i + 1)

  1278.         done

  1279.         echo "return 0; }"

  1280.     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1281. }

  1282. 

  1283. test_cpp_condition(){

  1284.     log test_cpp_condition "$@"

  1285.     header=$1

  1286.     condition=$2

  1287.     shift 2

  1288.     test_cpp "$@" <<EOF

  1289. #include <$header>

  1290. #if !($condition)

  1291. #error "unsatisfied condition: $condition"

  1292. #endif

  1293. EOF

  1294. }

  1295. 

  1296. check_cpp_condition(){

  1297.     log check_cpp_condition "$@"

  1298.     name=$1

  1299.     shift 1

  1300.     disable $name

  1301.     test_cpp_condition "$@" && enable $name

  1302. }

  1303. 

  1304. test_cflags_cc(){

  1305.     log test_cflags_cc "$@"

  1306.     flags=$1

  1307.     header=$2

  1308.     condition=$3

  1309.     shift 3

  1310.     set -- $($cflags_filter "$flags")

  1311.     test_cc "$@" <<EOF

  1312. #include <$header>

  1313. #if !($condition)

  1314. #error "unsatisfied condition: $condition"

  1315. #endif

  1316. EOF

  1317. }

  1318. 

  1319. check_lib(){

  1320.     log check_lib "$@"

  1321.     name="$1"

  1322.     headers="$2"

  1323.     funcs="$3"

  1324.     shift 3

  1325.     disable $name

  1326.     check_func_headers "$headers" "$funcs" "$@" &&

  1327.         enable $name && eval ${name}_extralibs="\$@"

  1328. }

  1329. 

  1330. check_lib_cpp(){

  1331.     log check_lib_cpp "$@"

  1332.     name="$1"

  1333.     headers="$2"

  1334.     classes="$3"

  1335.     shift 3

  1336.     disable $name

  1337.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1338.         enable $name && eval ${name}_extralibs="\$@"

  1339. }

  1340. 

  1341. test_pkg_config(){

  1342.     log test_pkg_config "$@"

  1343.     name="$1"

  1344.     pkg_version="$2"

  1345.     pkg="${2%% *}"

  1346.     headers="$3"

  1347.     funcs="$4"

  1348.     shift 4

  1349.     disable $name

  1350.     test_cmd $pkg_config --exists --print-errors $pkg_version || return

  1351.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1352.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1353.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1354.         enable $name &&

  1355.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1356.         set_sanitized "${name}_extralibs" $pkg_libs

  1357. }

  1358. 

  1359. check_pkg_config(){

  1360.     log check_pkg_config "$@"

  1361.     name="$1"

  1362.     test_pkg_config "$@" &&

  1363.         eval add_cflags \$${name}_cflags

  1364. }

  1365. 

  1366. test_exec(){

  1367.     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1368. }

  1369. 

  1370. check_exec_crash(){

  1371.     log check_exec_crash "$@"

  1372.     code=$(cat)

  1373. 

  1374.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1375.     # are safe but may not be available everywhere.  Thus we use

  1376.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1377.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1378.     # is not defined by standard C so it is used conditionally.

  1379. 

  1380.     (test_exec "$@") >> $logfile 2>&1 <<EOF

  1381. #include <signal.h>

  1382. static void sighandler(int sig){

  1383.     raise(SIGTERM);

  1384. }

  1385. int foo(void){

  1386.     $code

  1387. }

  1388. int (*func_ptr)(void) = foo;

  1389. int main(void){

  1390.     signal(SIGILL, sighandler);

  1391.     signal(SIGFPE, sighandler);

  1392.     signal(SIGSEGV, sighandler);

  1393. #ifdef SIGBUS

  1394.     signal(SIGBUS, sighandler);

  1395. #endif

  1396.     return func_ptr();

  1397. }

  1398. EOF

  1399. }

  1400. 

  1401. check_type(){

  1402.     log check_type "$@"

  1403.     headers=$1

  1404.     type=$2

  1405.     shift 2

  1406.     disable_sanitized "$type"

  1407.     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1408. }

  1409. 

  1410. check_struct(){

  1411.     log check_struct "$@"

  1412.     headers=$1

  1413.     struct=$2

  1414.     member=$3

  1415.     shift 3

  1416.     disable_sanitized "${struct}_${member}"

  1417.     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1418.         enable_sanitized "${struct}_${member}"

  1419. }

  1420. 

  1421. check_builtin(){

  1422.     log check_builtin "$@"

  1423.     name=$1

  1424.     headers=$2

  1425.     builtin=$3

  1426.     shift 3

  1427.     disable "$name"

  1428.     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1429. }

  1430. 

  1431. check_compile_assert(){

  1432.     log check_compile_assert "$@"

  1433.     name=$1

  1434.     headers=$2

  1435.     condition=$3

  1436.     shift 3

  1437.     disable "$name"

  1438.     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1439. }

  1440. 

  1441. check_cc(){

  1442.     log check_cc "$@"

  1443.     name=$1

  1444.     shift

  1445.     disable "$name"

  1446.     test_code cc "$@" && enable "$name"

  1447. }

  1448. 

  1449. require(){

  1450.     log require "$@"

  1451.     name_version="$1"

  1452.     name="${1%% *}"

  1453.     shift

  1454.     check_lib $name "$@" || die "ERROR: $name_version not found"

  1455. }

  1456. 

  1457. require_cc(){

  1458.     log require_cc "$@"

  1459.     name="$1"

  1460.     shift

  1461.     test_code cc "$@" || die "ERROR: $name failed"

  1462. }

  1463. 

  1464. require_cpp(){

  1465.     name="$1"

  1466.     headers="$2"

  1467.     classes="$3"

  1468.     shift 3

  1469.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1470. }

  1471. 

  1472. require_header(){

  1473.     log require_header "$@"

  1474.     headers="$1"

  1475.     check_header "$@" || die "ERROR: $headers not found"

  1476. }

  1477. 

  1478. require_cpp_condition(){

  1479.     log require_cpp_condition "$@"

  1480.     condition="$2"

  1481.     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"

  1482. }

  1483. 

  1484. require_pkg_config(){

  1485.     log require_pkg_config "$@"

  1486.     pkg_version="$2"

  1487.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1488. }

  1489. 

  1490. hostcc_e(){

  1491.     eval printf '%s\\n' $HOSTCC_E

  1492. }

  1493. 

  1494. hostcc_o(){

  1495.     eval printf '%s\\n' $HOSTCC_O

  1496. }

  1497. 

  1498. test_host_cc(){

  1499.     log test_host_cc "$@"

  1500.     cat > $TMPC

  1501.     log_file $TMPC

  1502.     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1503. }

  1504. 

  1505. test_host_cpp(){

  1506.     log test_host_cpp "$@"

  1507.     cat > $TMPC

  1508.     log_file $TMPC

  1509.     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1510. }

  1511. 

  1512. check_host_cppflags(){

  1513.     log check_host_cppflags "$@"

  1514.     test_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1515. #include <stdlib.h>

  1516. EOF

  1517. }

  1518. 

  1519. check_host_cflags(){

  1520.     log check_host_cflags "$@"

  1521.     set -- $($host_cflags_filter "$@")

  1522.     test_host_cc "$@" <<EOF && append host_cflags "$@"

  1523. int x;

  1524. EOF

  1525. }

  1526. 

  1527. test_host_cpp_condition(){

  1528.     log test_host_cpp_condition "$@"

  1529.     header=$1

  1530.     condition=$2

  1531.     shift 2

  1532.     test_host_cpp "$@" <<EOF

  1533. #include <$header>

  1534. #if !($condition)

  1535. #error "unsatisfied condition: $condition"

  1536. #endif

  1537. EOF

  1538. }

  1539. 

  1540. check_host_cpp_condition(){

  1541.     log check_host_cpp_condition "$@"

  1542.     name=$1

  1543.     shift 1

  1544.     disable $name

  1545.     test_host_cpp_condition "$@" && enable $name

  1546. }

  1547. 

  1548. cp_if_changed(){

  1549.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1550.     mkdir -p "$(dirname $2)"

  1551.     cp -f "$1" "$2"

  1552. }

  1553. 

  1554. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1555. # system-dependent things.

  1556. 

  1557. AVCODEC_COMPONENTS="

  1558.     bsfs

  1559.     decoders

  1560.     encoders

  1561.     hwaccels

  1562.     parsers

  1563. "

  1564. 

  1565. AVDEVICE_COMPONENTS="

  1566.     indevs

  1567.     outdevs

  1568. "

  1569. 

  1570. AVFILTER_COMPONENTS="

  1571.     filters

  1572. "

  1573. 

  1574. AVFORMAT_COMPONENTS="

  1575.     demuxers

  1576.     muxers

  1577.     protocols

  1578. "

  1579. 

  1580. COMPONENT_LIST="

  1581.     $AVCODEC_COMPONENTS

  1582.     $AVDEVICE_COMPONENTS

  1583.     $AVFILTER_COMPONENTS

  1584.     $AVFORMAT_COMPONENTS

  1585. "

  1586. 

  1587. EXAMPLE_LIST="

  1588.     avio_dir_cmd_example

  1589.     avio_reading_example

  1590.     decode_audio_example

  1591.     decode_video_example

  1592.     demuxing_decoding_example

  1593.     encode_audio_example

  1594.     encode_video_example

  1595.     extract_mvs_example

  1596.     filter_audio_example

  1597.     filtering_audio_example

  1598.     filtering_video_example

  1599.     http_multiclient_example

  1600.     hw_decode_example

  1601.     metadata_example

  1602.     muxing_example

  1603.     qsvdec_example

  1604.     remuxing_example

  1605.     resampling_audio_example

  1606.     scaling_video_example

  1607.     transcode_aac_example

  1608.     transcoding_example

  1609.     vaapi_encode_example

  1610.     vaapi_transcode_example

  1611. "

  1612. 

  1613. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1614.     alsa

  1615.     appkit

  1616.     avfoundation

  1617.     bzlib

  1618.     coreimage

  1619.     iconv

  1620.     libxcb

  1621.     libxcb_shm

  1622.     libxcb_shape

  1623.     libxcb_xfixes

  1624.     lzma

  1625.     schannel

  1626.     sdl2

  1627.     securetransport

  1628.     sndio

  1629.     xlib

  1630.     zlib

  1631. "

  1632. 

  1633. EXTERNAL_LIBRARY_GPL_LIST="

  1634.     avisynth

  1635.     frei0r

  1636.     libcdio

  1637.     librubberband

  1638.     libvidstab

  1639.     libx264

  1640.     libx265

  1641.     libxavs

  1642.     libxvid

  1643. "

  1644. 

  1645. EXTERNAL_LIBRARY_NONFREE_LIST="

  1646.     decklink

  1647.     libndi_newtek

  1648.     libfdk_aac

  1649.     openssl

  1650.     libtls

  1651. "

  1652. 

  1653. EXTERNAL_LIBRARY_VERSION3_LIST="

  1654.     gmp

  1655.     libopencore_amrnb

  1656.     libopencore_amrwb

  1657.     libvmaf

  1658.     libvo_amrwbenc

  1659.     rkmpp

  1660. "

  1661. 

  1662. EXTERNAL_LIBRARY_GPLV3_LIST="

  1663.     libsmbclient

  1664. "

  1665. 

  1666. EXTERNAL_LIBRARY_LIST="

  1667.     $EXTERNAL_LIBRARY_GPL_LIST

  1668.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1669.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1670.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1671.     chromaprint

  1672.     gcrypt

  1673.     gnutls

  1674.     jni

  1675.     ladspa

  1676.     libaom

  1677.     libass

  1678.     libbluray

  1679.     libbs2b

  1680.     libcaca

  1681.     libcelt

  1682.     libcodec2

  1683.     libdc1394

  1684.     libdrm

  1685.     libflite

  1686.     libfontconfig

  1687.     libfreetype

  1688.     libfribidi

  1689.     libgme

  1690.     libgsm

  1691.     libiec61883

  1692.     libilbc

  1693.     libjack

  1694.     libkvazaar

  1695.     libmodplug

  1696.     libmp3lame

  1697.     libmysofa

  1698.     libopencv

  1699.     libopenh264

  1700.     libopenjpeg

  1701.     libopenmpt

  1702.     libopus

  1703.     libpulse

  1704.     librsvg

  1705.     librtmp

  1706.     libshine

  1707.     libsmbclient

  1708.     libsnappy

  1709.     libsoxr

  1710.     libspeex

  1711.     libsrt

  1712.     libssh

  1713.     libtesseract

  1714.     libtheora

  1715.     libtwolame

  1716.     libv4l2

  1717.     libvorbis

  1718.     libvpx

  1719.     libwavpack

  1720.     libwebp

  1721.     libxml2

  1722.     libzimg

  1723.     libzmq

  1724.     libzvbi

  1725.     lv2

  1726.     mediacodec

  1727.     openal

  1728.     opengl

  1729.     vapoursynth

  1730. "

  1731. 

  1732. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1733.     amf

  1734.     audiotoolbox

  1735.     crystalhd

  1736.     cuda

  1737.     cuvid

  1738.     d3d11va

  1739.     dxva2

  1740.     ffnvcodec

  1741.     nvdec

  1742.     nvenc

  1743.     vaapi

  1744.     vdpau

  1745.     videotoolbox

  1746.     v4l2_m2m

  1747.     xvmc

  1748. "

  1749. 

  1750. # catchall list of things that require external libs to link

  1751. EXTRALIBS_LIST="

  1752.     cpu_init

  1753.     cws2fws

  1754. "

  1755. 

  1756. HWACCEL_LIBRARY_NONFREE_LIST="

  1757.     cuda_sdk

  1758.     libnpp

  1759. "

  1760. 

  1761. HWACCEL_LIBRARY_LIST="

  1762.     $HWACCEL_LIBRARY_NONFREE_LIST

  1763.     libmfx

  1764.     mmal

  1765.     omx

  1766.     opencl

  1767. "

  1768. 

  1769. DOCUMENT_LIST="

  1770.     doc

  1771.     htmlpages

  1772.     manpages

  1773.     podpages

  1774.     txtpages

  1775. "

  1776. 

  1777. FEATURE_LIST="

  1778.     ftrapv

  1779.     gray

  1780.     hardcoded_tables

  1781.     omx_rpi

  1782.     runtime_cpudetect

  1783.     safe_bitstream_reader

  1784.     shared

  1785.     small

  1786.     static

  1787.     swscale_alpha

  1788. "

  1789. 

  1790. LIBRARY_LIST="

  1791.     avcodec

  1792.     avdevice

  1793.     avfilter

  1794.     avformat

  1795.     avresample

  1796.     avutil

  1797.     postproc

  1798.     swresample

  1799.     swscale

  1800. "

  1801. 

  1802. LICENSE_LIST="

  1803.     gpl

  1804.     nonfree

  1805.     version3

  1806. "

  1807. 

  1808. PROGRAM_LIST="

  1809.     ffplay

  1810.     ffprobe

  1811.     ffmpeg

  1812. "

  1813. 

  1814. SUBSYSTEM_LIST="

  1815.     dct

  1816.     dwt

  1817.     error_resilience

  1818.     faan

  1819.     fast_unaligned

  1820.     fft

  1821.     lsp

  1822.     lzo

  1823.     mdct

  1824.     pixelutils

  1825.     network

  1826.     rdft

  1827. "

  1828. 

  1829. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1830. CONFIG_LIST="

  1831.     $DOCUMENT_LIST

  1832.     $EXAMPLE_LIST

  1833.     $EXTERNAL_LIBRARY_LIST

  1834.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1835.     $HWACCEL_LIBRARY_LIST

  1836.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1837.     $FEATURE_LIST

  1838.     $LICENSE_LIST

  1839.     $LIBRARY_LIST

  1840.     $PROGRAM_LIST

  1841.     $SUBSYSTEM_LIST

  1842.     autodetect

  1843.     fontconfig

  1844.     linux_perf

  1845.     memory_poisoning

  1846.     neon_clobber_test

  1847.     ossfuzz

  1848.     pic

  1849.     thumb

  1850.     valgrind_backtrace

  1851.     xmm_clobber_test

  1852.     $COMPONENT_LIST

  1853. "

  1854. 

  1855. THREADS_LIST="

  1856.     pthreads

  1857.     os2threads

  1858.     w32threads

  1859. "

  1860. 

  1861. ATOMICS_LIST="

  1862.     atomics_gcc

  1863.     atomics_suncc

  1864.     atomics_win32

  1865. "

  1866. 

  1867. AUTODETECT_LIBS="

  1868.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1869.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1870.     $THREADS_LIST

  1871. "

  1872. 

  1873. ARCH_LIST="

  1874.     aarch64

  1875.     alpha

  1876.     arm

  1877.     avr32

  1878.     avr32_ap

  1879.     avr32_uc

  1880.     bfin

  1881.     ia64

  1882.     m68k

  1883.     mips

  1884.     mips64

  1885.     parisc

  1886.     ppc

  1887.     ppc64

  1888.     s390

  1889.     sh4

  1890.     sparc

  1891.     sparc64

  1892.     tilegx

  1893.     tilepro

  1894.     tomi

  1895.     x86

  1896.     x86_32

  1897.     x86_64

  1898. "

  1899. 

  1900. ARCH_EXT_LIST_ARM="

  1901.     armv5te

  1902.     armv6

  1903.     armv6t2

  1904.     armv8

  1905.     neon

  1906.     vfp

  1907.     vfpv3

  1908.     setend

  1909. "

  1910. 

  1911. ARCH_EXT_LIST_MIPS="

  1912.     mipsfpu

  1913.     mips32r2

  1914.     mips32r5

  1915.     mips64r2

  1916.     mips32r6

  1917.     mips64r6

  1918.     mipsdsp

  1919.     mipsdspr2

  1920.     msa

  1921. "

  1922. 

  1923. ARCH_EXT_LIST_LOONGSON="

  1924.     loongson2

  1925.     loongson3

  1926.     mmi

  1927. "

  1928. 

  1929. ARCH_EXT_LIST_X86_SIMD="

  1930.     aesni

  1931.     amd3dnow

  1932.     amd3dnowext

  1933.     avx

  1934.     avx2

  1935.     avx512

  1936.     fma3

  1937.     fma4

  1938.     mmx

  1939.     mmxext

  1940.     sse

  1941.     sse2

  1942.     sse3

  1943.     sse4

  1944.     sse42

  1945.     ssse3

  1946.     xop

  1947. "

  1948. 

  1949. ARCH_EXT_LIST_PPC="

  1950.     altivec

  1951.     dcbzl

  1952.     ldbrx

  1953.     power8

  1954.     ppc4xx

  1955.     vsx

  1956. "

  1957. 

  1958. ARCH_EXT_LIST_X86="

  1959.     $ARCH_EXT_LIST_X86_SIMD

  1960.     cpunop

  1961.     i686

  1962. "

  1963. 

  1964. ARCH_EXT_LIST="

  1965.     $ARCH_EXT_LIST_ARM

  1966.     $ARCH_EXT_LIST_PPC

  1967.     $ARCH_EXT_LIST_X86

  1968.     $ARCH_EXT_LIST_MIPS

  1969.     $ARCH_EXT_LIST_LOONGSON

  1970. "

  1971. 

  1972. ARCH_FEATURES="

  1973.     aligned_stack

  1974.     fast_64bit

  1975.     fast_clz

  1976.     fast_cmov

  1977.     local_aligned

  1978.     simd_align_16

  1979.     simd_align_32

  1980.     simd_align_64

  1981. "

  1982. 

  1983. BUILTIN_LIST="

  1984.     atomic_cas_ptr

  1985.     machine_rw_barrier

  1986.     MemoryBarrier

  1987.     mm_empty

  1988.     rdtsc

  1989.     sem_timedwait

  1990.     sync_val_compare_and_swap

  1991. "

  1992. HAVE_LIST_CMDLINE="

  1993.     inline_asm

  1994.     symver

  1995.     x86asm

  1996. "

  1997. 

  1998. HAVE_LIST_PUB="

  1999.     bigendian

  2000.     fast_unaligned

  2001. "

  2002. 

  2003. HEADERS_LIST="

  2004.     arpa_inet_h

  2005.     asm_types_h

  2006.     cdio_paranoia_h

  2007.     cdio_paranoia_paranoia_h

  2008.     cuda_h

  2009.     dispatch_dispatch_h

  2010.     dev_bktr_ioctl_bt848_h

  2011.     dev_bktr_ioctl_meteor_h

  2012.     dev_ic_bt8xx_h

  2013.     dev_video_bktr_ioctl_bt848_h

  2014.     dev_video_meteor_ioctl_meteor_h

  2015.     direct_h

  2016.     dirent_h

  2017.     dxgidebug_h

  2018.     dxva_h

  2019.     ES2_gl_h

  2020.     gsm_h

  2021.     io_h

  2022.     linux_perf_event_h

  2023.     machine_ioctl_bt848_h

  2024.     machine_ioctl_meteor_h

  2025.     malloc_h

  2026.     opencv2_core_core_c_h

  2027.     OpenGL_gl3_h

  2028.     poll_h

  2029.     sys_param_h

  2030.     sys_resource_h

  2031.     sys_select_h

  2032.     sys_soundcard_h

  2033.     sys_time_h

  2034.     sys_un_h

  2035.     sys_videoio_h

  2036.     termios_h

  2037.     udplite_h

  2038.     unistd_h

  2039.     valgrind_valgrind_h

  2040.     windows_h

  2041.     winsock2_h

  2042. "

  2043. 

  2044. INTRINSICS_LIST="

  2045.     intrinsics_neon

  2046. "

  2047. 

  2048. COMPLEX_FUNCS="

  2049.     cabs

  2050.     cexp

  2051. "

  2052. 

  2053. MATH_FUNCS="

  2054.     atanf

  2055.     atan2f

  2056.     cbrt

  2057.     cbrtf

  2058.     copysign

  2059.     cosf

  2060.     erf

  2061.     exp2

  2062.     exp2f

  2063.     expf

  2064.     hypot

  2065.     isfinite

  2066.     isinf

  2067.     isnan

  2068.     ldexpf

  2069.     llrint

  2070.     llrintf

  2071.     log2

  2072.     log2f

  2073.     log10f

  2074.     lrint

  2075.     lrintf

  2076.     powf

  2077.     rint

  2078.     round

  2079.     roundf

  2080.     sinf

  2081.     trunc

  2082.     truncf

  2083. "

  2084. 

  2085. SYSTEM_FEATURES="

  2086.     dos_paths

  2087.     libc_msvcrt

  2088.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2089.     section_data_rel_ro

  2090.     threads

  2091.     uwp

  2092.     winrt

  2093. "

  2094. 

  2095. SYSTEM_FUNCS="

  2096.     access

  2097.     aligned_malloc

  2098.     arc4random

  2099.     clock_gettime

  2100.     closesocket

  2101.     CommandLineToArgvW

  2102.     fcntl

  2103.     getaddrinfo

  2104.     gethrtime

  2105.     getopt

  2106.     GetProcessAffinityMask

  2107.     GetProcessMemoryInfo

  2108.     GetProcessTimes

  2109.     getrusage

  2110.     GetSystemTimeAsFileTime

  2111.     gettimeofday

  2112.     glob

  2113.     glXGetProcAddress

  2114.     gmtime_r

  2115.     inet_aton

  2116.     isatty

  2117.     kbhit

  2118.     localtime_r

  2119.     lstat

  2120.     lzo1x_999_compress

  2121.     mach_absolute_time

  2122.     MapViewOfFile

  2123.     memalign

  2124.     mkstemp

  2125.     mmap

  2126.     mprotect

  2127.     nanosleep

  2128.     PeekNamedPipe

  2129.     posix_memalign

  2130.     pthread_cancel

  2131.     sched_getaffinity

  2132.     SecItemImport

  2133.     SetConsoleTextAttribute

  2134.     SetConsoleCtrlHandler

  2135.     setmode

  2136.     setrlimit

  2137.     Sleep

  2138.     strerror_r

  2139.     sysconf

  2140.     sysctl

  2141.     usleep

  2142.     UTGetOSTypeFromString

  2143.     VirtualAlloc

  2144.     wglGetProcAddress

  2145. "

  2146. 

  2147. SYSTEM_LIBRARIES="

  2148.     bcrypt

  2149.     vaapi_drm

  2150.     vaapi_x11

  2151.     vdpau_x11

  2152. "

  2153. 

  2154. TOOLCHAIN_FEATURES="

  2155.     as_arch_directive

  2156.     as_dn_directive

  2157.     as_fpu_directive

  2158.     as_func

  2159.     as_object_arch

  2160.     asm_mod_q

  2161.     blocks_extension

  2162.     ebp_available

  2163.     ebx_available

  2164.     gnu_as

  2165.     gnu_windres

  2166.     ibm_asm

  2167.     inline_asm_direct_symbol_refs

  2168.     inline_asm_labels

  2169.     inline_asm_nonlocal_labels

  2170.     pragma_deprecated

  2171.     rsync_contimeout

  2172.     symver_asm_label

  2173.     symver_gnu_asm

  2174.     vfp_args

  2175.     xform_asm

  2176.     xmm_clobbers

  2177. "

  2178. 

  2179. TYPES_LIST="

  2180.     kCMVideoCodecType_HEVC

  2181.     socklen_t

  2182.     struct_addrinfo

  2183.     struct_group_source_req

  2184.     struct_ip_mreq_source

  2185.     struct_ipv6_mreq

  2186.     struct_msghdr_msg_flags

  2187.     struct_pollfd

  2188.     struct_rusage_ru_maxrss

  2189.     struct_sctp_event_subscribe

  2190.     struct_sockaddr_in6

  2191.     struct_sockaddr_sa_len

  2192.     struct_sockaddr_storage

  2193.     struct_stat_st_mtim_tv_nsec

  2194.     struct_v4l2_frmivalenum_discrete

  2195. "

  2196. 

  2197. HAVE_LIST="

  2198.     $ARCH_EXT_LIST

  2199.     $(add_suffix _external $ARCH_EXT_LIST)

  2200.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2201.     $ARCH_FEATURES

  2202.     $BUILTIN_LIST

  2203.     $COMPLEX_FUNCS

  2204.     $HAVE_LIST_CMDLINE

  2205.     $HAVE_LIST_PUB

  2206.     $HEADERS_LIST

  2207.     $INTRINSICS_LIST

  2208.     $MATH_FUNCS

  2209.     $SYSTEM_FEATURES

  2210.     $SYSTEM_FUNCS

  2211.     $SYSTEM_LIBRARIES

  2212.     $THREADS_LIST

  2213.     $TOOLCHAIN_FEATURES

  2214.     $TYPES_LIST

  2215.     makeinfo

  2216.     makeinfo_html

  2217.     opencl_d3d11

  2218.     opencl_drm_arm

  2219.     opencl_drm_beignet

  2220.     opencl_dxva2

  2221.     opencl_vaapi_beignet

  2222.     opencl_vaapi_intel_media

  2223.     perl

  2224.     pod2man

  2225.     texi2html

  2226. "

  2227. 

  2228. # options emitted with CONFIG_ prefix but not available on the command line

  2229. CONFIG_EXTRA="

  2230.     aandcttables

  2231.     ac3dsp

  2232.     adts_header

  2233.     audio_frame_queue

  2234.     audiodsp

  2235.     blockdsp

  2236.     bswapdsp

  2237.     cabac

  2238.     cbs

  2239.     cbs_h264

  2240.     cbs_h265

  2241.     cbs_mpeg2

  2242.     cbs_vp9

  2243.     dirac_parse

  2244.     dvprofile

  2245.     exif

  2246.     faandct

  2247.     faanidct

  2248.     fdctdsp

  2249.     flacdsp

  2250.     fmtconvert

  2251.     frame_thread_encoder

  2252.     g722dsp

  2253.     golomb

  2254.     gplv3

  2255.     h263dsp

  2256.     h264chroma

  2257.     h264dsp

  2258.     h264parse

  2259.     h264pred

  2260.     h264qpel

  2261.     hevcparse

  2262.     hpeldsp

  2263.     huffman

  2264.     huffyuvdsp

  2265.     huffyuvencdsp

  2266.     idctdsp

  2267.     iirfilter

  2268.     mdct15

  2269.     intrax8

  2270.     iso_media

  2271.     ividsp

  2272.     jpegtables

  2273.     lgplv3

  2274.     libx262

  2275.     llauddsp

  2276.     llviddsp

  2277.     llvidencdsp

  2278.     lpc

  2279.     lzf

  2280.     me_cmp

  2281.     mpeg_er

  2282.     mpegaudio

  2283.     mpegaudiodsp

  2284.     mpegaudioheader

  2285.     mpegvideo

  2286.     mpegvideoenc

  2287.     mss34dsp

  2288.     pixblockdsp

  2289.     qpeldsp

  2290.     qsv

  2291.     qsvdec

  2292.     qsvenc

  2293.     qsvvpp

  2294.     rangecoder

  2295.     riffdec

  2296.     riffenc

  2297.     rtpdec

  2298.     rtpenc_chain

  2299.     rv34dsp

  2300.     sinewin

  2301.     snappy

  2302.     srtp

  2303.     startcode

  2304.     texturedsp

  2305.     texturedspenc

  2306.     tpeldsp

  2307.     vaapi_1

  2308.     vaapi_encode

  2309.     vc1dsp

  2310.     videodsp

  2311.     vp3dsp

  2312.     vp56dsp

  2313.     vp8dsp

  2314.     wma_freqs

  2315.     wmv2dsp

  2316. "

  2317. 

  2318. CMDLINE_SELECT="

  2319.     $ARCH_EXT_LIST

  2320.     $CONFIG_LIST

  2321.     $HAVE_LIST_CMDLINE

  2322.     $THREADS_LIST

  2323.     asm

  2324.     cross_compile

  2325.     debug

  2326.     extra_warnings

  2327.     logging

  2328.     lto

  2329.     optimizations

  2330.     rpath

  2331.     stripping

  2332. "

  2333. 

  2334. PATHS_LIST="

  2335.     bindir

  2336.     datadir

  2337.     docdir

  2338.     incdir

  2339.     libdir

  2340.     mandir

  2341.     pkgconfigdir

  2342.     prefix

  2343.     shlibdir

  2344.     install_name_dir

  2345. "

  2346. 

  2347. CMDLINE_SET="

  2348.     $PATHS_LIST

  2349.     ar

  2350.     arch

  2351.     as

  2352.     assert_level

  2353.     build_suffix

  2354.     cc

  2355.     objcc

  2356.     cpu

  2357.     cross_prefix

  2358.     custom_allocator

  2359.     cxx

  2360.     dep_cc

  2361.     doxygen

  2362.     env

  2363.     extra_version

  2364.     gas

  2365.     host_cc

  2366.     host_cflags

  2367.     host_extralibs

  2368.     host_ld

  2369.     host_ldflags

  2370.     host_os

  2371.     ignore_tests

  2372.     install

  2373.     ld

  2374.     ln_s

  2375.     logfile

  2376.     malloc_prefix

  2377.     nm

  2378.     optflags

  2379.     nvcc

  2380.     nvccflags

  2381.     pkg_config

  2382.     pkg_config_flags

  2383.     progs_suffix

  2384.     random_seed

  2385.     ranlib

  2386.     samples

  2387.     strip

  2388.     sws_max_filter_size

  2389.     sysinclude

  2390.     sysroot

  2391.     target_exec

  2392.     target_os

  2393.     target_path

  2394.     target_samples

  2395.     tempprefix

  2396.     toolchain

  2397.     valgrind

  2398.     x86asmexe

  2399. "

  2400. 

  2401. CMDLINE_APPEND="

  2402.     extra_cflags

  2403.     extra_cxxflags

  2404.     extra_objcflags

  2405.     host_cppflags

  2406. "

  2407. 

  2408. # code dependency declarations

  2409. 

  2410. # architecture extensions

  2411. 

  2412. armv5te_deps="arm"

  2413. armv6_deps="arm"

  2414. armv6t2_deps="arm"

  2415. armv8_deps="aarch64"

  2416. neon_deps_any="aarch64 arm"

  2417. intrinsics_neon_deps="neon"

  2418. vfp_deps_any="aarch64 arm"

  2419. vfpv3_deps="vfp"

  2420. setend_deps="arm"

  2421. 

  2422. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2423. 

  2424. altivec_deps="ppc"

  2425. dcbzl_deps="ppc"

  2426. ldbrx_deps="ppc"

  2427. ppc4xx_deps="ppc"

  2428. vsx_deps="altivec"

  2429. power8_deps="vsx"

  2430. 

  2431. loongson2_deps="mips"

  2432. loongson3_deps="mips"

  2433. mips32r2_deps="mips"

  2434. mips32r5_deps="mips"

  2435. mips32r6_deps="mips"

  2436. mips64r2_deps="mips"

  2437. mips64r6_deps="mips"

  2438. mipsfpu_deps="mips"

  2439. mipsdsp_deps="mips"

  2440. mipsdspr2_deps="mips"

  2441. mmi_deps="mips"

  2442. msa_deps="mipsfpu"

  2443. 

  2444. cpunop_deps="i686"

  2445. x86_64_select="i686"

  2446. x86_64_suggest="fast_cmov"

  2447. 

  2448. amd3dnow_deps="mmx"

  2449. amd3dnowext_deps="amd3dnow"

  2450. i686_deps="x86"

  2451. mmx_deps="x86"

  2452. mmxext_deps="mmx"

  2453. sse_deps="mmxext"

  2454. sse2_deps="sse"

  2455. sse3_deps="sse2"

  2456. ssse3_deps="sse3"

  2457. sse4_deps="ssse3"

  2458. sse42_deps="sse4"

  2459. aesni_deps="sse42"

  2460. avx_deps="sse42"

  2461. xop_deps="avx"

  2462. fma3_deps="avx"

  2463. fma4_deps="avx"

  2464. avx2_deps="avx"

  2465. avx512_deps="avx2"

  2466. 

  2467. mmx_external_deps="x86asm"

  2468. mmx_inline_deps="inline_asm x86"

  2469. mmx_suggest="mmx_external mmx_inline"

  2470. 

  2471. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2472.     eval dep=\$${ext}_deps

  2473.     eval ${ext}_external_deps='"${dep}_external"'

  2474.     eval ${ext}_inline_deps='"${dep}_inline"'

  2475.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2476. done

  2477. 

  2478. aligned_stack_if_any="aarch64 ppc x86"

  2479. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2480. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2481. fast_unaligned_if_any="aarch64 ppc x86"

  2482. simd_align_16_if_any="altivec neon sse"

  2483. simd_align_32_if_any="avx"

  2484. simd_align_64_if_any="avx512"

  2485. 

  2486. # system capabilities

  2487. linux_perf_deps="linux_perf_event_h"

  2488. symver_if_any="symver_asm_label symver_gnu_asm"

  2489. valgrind_backtrace_conflict="optimizations"

  2490. valgrind_backtrace_deps="valgrind_valgrind_h"

  2491. 

  2492. # threading support

  2493. atomics_gcc_if="sync_val_compare_and_swap"

  2494. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2495. atomics_win32_if="MemoryBarrier"

  2496. atomics_native_if_any="$ATOMICS_LIST"

  2497. w32threads_deps="atomics_native"

  2498. threads_if_any="$THREADS_LIST"

  2499. 

  2500. # subsystems

  2501. cbs_h264_select="cbs golomb"

  2502. cbs_h265_select="cbs golomb"

  2503. cbs_mpeg2_select="cbs"

  2504. cbs_vp9_select="cbs"

  2505. dct_select="rdft"

  2506. dirac_parse_select="golomb"

  2507. error_resilience_select="me_cmp"

  2508. faandct_deps="faan"

  2509. faandct_select="fdctdsp"

  2510. faanidct_deps="faan"

  2511. faanidct_select="idctdsp"

  2512. h264dsp_select="startcode"

  2513. hevcparse_select="golomb"

  2514. frame_thread_encoder_deps="encoders threads"

  2515. intrax8_select="blockdsp idctdsp"

  2516. mdct_select="fft"

  2517. mdct15_select="fft"

  2518. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2519. mpeg_er_select="error_resilience"

  2520. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2521. mpegaudiodsp_select="dct"

  2522. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2523. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2524. vc1dsp_select="h264chroma qpeldsp startcode"

  2525. rdft_select="fft"

  2526. 

  2527. # decoders / encoders

  2528. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2529. aac_fixed_decoder_select="adts_header mdct sinewin"

  2530. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2531. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2532. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2533. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2534. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2535. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2536. adpcm_g722_decoder_select="g722dsp"

  2537. adpcm_g722_encoder_select="g722dsp"

  2538. aic_decoder_select="golomb idctdsp"

  2539. alac_encoder_select="lpc"

  2540. als_decoder_select="bswapdsp"

  2541. amrnb_decoder_select="lsp"

  2542. amrwb_decoder_select="lsp"

  2543. amv_decoder_select="sp5x_decoder exif"

  2544. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2545. ape_decoder_select="bswapdsp llauddsp"

  2546. apng_decoder_deps="zlib"

  2547. apng_encoder_deps="zlib"

  2548. apng_encoder_select="llvidencdsp"

  2549. aptx_decoder_select="audio_frame_queue"

  2550. aptx_encoder_select="audio_frame_queue"

  2551. aptx_hd_decoder_select="audio_frame_queue"

  2552. aptx_hd_encoder_select="audio_frame_queue"

  2553. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2554. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2555. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2556. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2557. atrac1_decoder_select="mdct sinewin"

  2558. atrac3_decoder_select="mdct"

  2559. atrac3p_decoder_select="mdct sinewin"

  2560. avrn_decoder_select="exif jpegtables"

  2561. bink_decoder_select="blockdsp hpeldsp"

  2562. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2563. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2564. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2565. clearvideo_decoder_select="idctdsp"

  2566. cllc_decoder_select="bswapdsp"

  2567. comfortnoise_encoder_select="lpc"

  2568. cook_decoder_select="audiodsp mdct sinewin"

  2569. cscd_decoder_select="lzo"

  2570. cscd_decoder_suggest="zlib"

  2571. dca_decoder_select="mdct"

  2572. dds_decoder_select="texturedsp"

  2573. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2574. dnxhd_decoder_select="blockdsp idctdsp"

  2575. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2576. dolby_e_decoder_select="mdct"

  2577. dvvideo_decoder_select="dvprofile idctdsp"

  2578. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2579. dxa_decoder_deps="zlib"

  2580. dxv_decoder_select="lzf texturedsp"

  2581. eac3_decoder_select="ac3_decoder"

  2582. eac3_encoder_select="ac3_encoder"

  2583. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2584. eatgq_decoder_select="aandcttables"

  2585. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2586. exr_decoder_deps="zlib"

  2587. ffv1_decoder_select="rangecoder"

  2588. ffv1_encoder_select="rangecoder"

  2589. ffvhuff_decoder_select="huffyuv_decoder"

  2590. ffvhuff_encoder_select="huffyuv_encoder"

  2591. fic_decoder_select="golomb"

  2592. flac_decoder_select="flacdsp"

  2593. flac_encoder_select="bswapdsp flacdsp lpc"

  2594. flashsv2_decoder_deps="zlib"

  2595. flashsv2_encoder_deps="zlib"

  2596. flashsv_decoder_deps="zlib"

  2597. flashsv_encoder_deps="zlib"

  2598. flv_decoder_select="h263_decoder"

  2599. flv_encoder_select="h263_encoder"

  2600. fourxm_decoder_select="blockdsp bswapdsp"

  2601. fraps_decoder_select="bswapdsp huffman"

  2602. g2m_decoder_deps="zlib"

  2603. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2604. g729_decoder_select="audiodsp"

  2605. h261_decoder_select="mpegvideo"

  2606. h261_encoder_select="aandcttables mpegvideoenc"

  2607. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2608. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2609. h263i_decoder_select="h263_decoder"

  2610. h263p_decoder_select="h263_decoder"

  2611. h263p_encoder_select="h263_encoder"

  2612. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2613. h264_decoder_suggest="error_resilience"

  2614. hap_decoder_select="snappy texturedsp"

  2615. hap_encoder_deps="libsnappy"

  2616. hap_encoder_select="texturedspenc"

  2617. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2618. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2619. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2620. iac_decoder_select="imc_decoder"

  2621. imc_decoder_select="bswapdsp fft mdct sinewin"

  2622. indeo3_decoder_select="hpeldsp"

  2623. indeo4_decoder_select="ividsp"

  2624. indeo5_decoder_select="ividsp"

  2625. interplay_video_decoder_select="hpeldsp"

  2626. jpegls_decoder_select="mjpeg_decoder"

  2627. jv_decoder_select="blockdsp"

  2628. lagarith_decoder_select="llviddsp"

  2629. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2630. magicyuv_decoder_select="llviddsp"

  2631. magicyuv_encoder_select="llvidencdsp"

  2632. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2633. metasound_decoder_select="lsp mdct sinewin"

  2634. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2635. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2636. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2637. mjpegb_decoder_select="mjpeg_decoder"

  2638. mlp_decoder_select="mlp_parser"

  2639. mlp_encoder_select="lpc"

  2640. motionpixels_decoder_select="bswapdsp"

  2641. mp1_decoder_select="mpegaudio"

  2642. mp1float_decoder_select="mpegaudio"

  2643. mp2_decoder_select="mpegaudio"

  2644. mp2float_decoder_select="mpegaudio"

  2645. mp3_decoder_select="mpegaudio"

  2646. mp3adu_decoder_select="mpegaudio"

  2647. mp3adufloat_decoder_select="mpegaudio"

  2648. mp3float_decoder_select="mpegaudio"

  2649. mp3on4_decoder_select="mpegaudio"

  2650. mp3on4float_decoder_select="mpegaudio"

  2651. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2652. mpc8_decoder_select="mpegaudiodsp"

  2653. mpegvideo_decoder_select="mpegvideo"

  2654. mpeg1video_decoder_select="mpegvideo"

  2655. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2656. mpeg2video_decoder_select="mpegvideo"

  2657. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2658. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2659. mpeg4_encoder_select="h263_encoder"

  2660. msa1_decoder_select="mss34dsp"

  2661. mscc_decoder_deps="zlib"

  2662. msmpeg4v1_decoder_select="h263_decoder"

  2663. msmpeg4v2_decoder_select="h263_decoder"

  2664. msmpeg4v2_encoder_select="h263_encoder"

  2665. msmpeg4v3_decoder_select="h263_decoder"

  2666. msmpeg4v3_encoder_select="h263_encoder"

  2667. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2668. mts2_decoder_select="mss34dsp"

  2669. mxpeg_decoder_select="mjpeg_decoder"

  2670. nellymoser_decoder_select="mdct sinewin"

  2671. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2672. nuv_decoder_select="idctdsp lzo"

  2673. on2avc_decoder_select="mdct"

  2674. opus_decoder_deps="swresample"

  2675. opus_decoder_select="mdct15"

  2676. opus_encoder_select="audio_frame_queue mdct15"

  2677. png_decoder_deps="zlib"

  2678. png_encoder_deps="zlib"

  2679. png_encoder_select="llvidencdsp"

  2680. prores_decoder_select="blockdsp idctdsp"

  2681. prores_encoder_select="fdctdsp"

  2682. qcelp_decoder_select="lsp"

  2683. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2684. ra_144_decoder_select="audiodsp"

  2685. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2686. ralf_decoder_select="golomb"

  2687. rawvideo_decoder_select="bswapdsp"

  2688. rscc_decoder_deps="zlib"

  2689. rtjpeg_decoder_select="me_cmp"

  2690. rv10_decoder_select="h263_decoder"

  2691. rv10_encoder_select="h263_encoder"

  2692. rv20_decoder_select="h263_decoder"

  2693. rv20_encoder_select="h263_encoder"

  2694. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2695. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2696. screenpresso_decoder_deps="zlib"

  2697. shorten_decoder_select="bswapdsp"

  2698. sipr_decoder_select="lsp"

  2699. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2700. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2701. sonic_decoder_select="golomb rangecoder"

  2702. sonic_encoder_select="golomb rangecoder"

  2703. sonic_ls_encoder_select="golomb rangecoder"

  2704. sp5x_decoder_select="mjpeg_decoder"

  2705. srgc_decoder_deps="zlib"

  2706. svq1_decoder_select="hpeldsp"

  2707. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2708. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2709. svq3_decoder_suggest="zlib"

  2710. tak_decoder_select="audiodsp"

  2711. tdsc_decoder_deps="zlib"

  2712. tdsc_decoder_select="mjpeg_decoder"

  2713. theora_decoder_select="vp3_decoder"

  2714. thp_decoder_select="mjpeg_decoder"

  2715. tiff_decoder_suggest="zlib lzma"

  2716. tiff_encoder_suggest="zlib"

  2717. truehd_decoder_select="mlp_parser"

  2718. truehd_encoder_select="lpc"

  2719. truemotion2_decoder_select="bswapdsp"

  2720. truespeech_decoder_select="bswapdsp"

  2721. tscc_decoder_deps="zlib"

  2722. twinvq_decoder_select="mdct lsp sinewin"

  2723. txd_decoder_select="texturedsp"

  2724. utvideo_decoder_select="bswapdsp llviddsp"

  2725. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2726. vble_decoder_select="llviddsp"

  2727. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2728. vc1image_decoder_select="vc1_decoder"

  2729. vorbis_decoder_select="mdct"

  2730. vorbis_encoder_select="audio_frame_queue mdct"

  2731. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2732. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2733. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2734. vp6a_decoder_select="vp6_decoder"

  2735. vp6f_decoder_select="vp6_decoder"

  2736. vp7_decoder_select="h264pred videodsp vp8dsp"

  2737. vp8_decoder_select="h264pred videodsp vp8dsp"

  2738. vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"

  2739. webp_decoder_select="vp8_decoder exif"

  2740. wmalossless_decoder_select="llauddsp"

  2741. wmapro_decoder_select="mdct sinewin wma_freqs"

  2742. wmav1_decoder_select="mdct sinewin wma_freqs"

  2743. wmav1_encoder_select="mdct sinewin wma_freqs"

  2744. wmav2_decoder_select="mdct sinewin wma_freqs"

  2745. wmav2_encoder_select="mdct sinewin wma_freqs"

  2746. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2747. wmv1_decoder_select="h263_decoder"

  2748. wmv1_encoder_select="h263_encoder"

  2749. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2750. wmv2_encoder_select="h263_encoder wmv2dsp"

  2751. wmv3_decoder_select="vc1_decoder"

  2752. wmv3image_decoder_select="wmv3_decoder"

  2753. xma1_decoder_select="wmapro_decoder"

  2754. xma2_decoder_select="wmapro_decoder"

  2755. zerocodec_decoder_deps="zlib"

  2756. zlib_decoder_deps="zlib"

  2757. zlib_encoder_deps="zlib"

  2758. zmbv_decoder_deps="zlib"

  2759. zmbv_encoder_deps="zlib"

  2760. 

  2761. # hardware accelerators

  2762. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2763. cuda_deps="ffnvcodec"

  2764. cuvid_deps="ffnvcodec"

  2765. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2766. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2767. ffnvcodec_deps_any="libdl LoadLibrary"

  2768. nvdec_deps="ffnvcodec"

  2769. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2770. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2771. xvmc_deps="X11_extensions_XvMClib_h"

  2772. 

  2773. h263_vaapi_hwaccel_deps="vaapi"

  2774. h263_vaapi_hwaccel_select="h263_decoder"

  2775. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2776. h263_videotoolbox_hwaccel_select="h263_decoder"

  2777. h264_d3d11va_hwaccel_deps="d3d11va"

  2778. h264_d3d11va_hwaccel_select="h264_decoder"

  2779. h264_d3d11va2_hwaccel_deps="d3d11va"

  2780. h264_d3d11va2_hwaccel_select="h264_decoder"

  2781. h264_dxva2_hwaccel_deps="dxva2"

  2782. h264_dxva2_hwaccel_select="h264_decoder"

  2783. h264_nvdec_hwaccel_deps="nvdec"

  2784. h264_nvdec_hwaccel_select="h264_decoder"

  2785. h264_vaapi_hwaccel_deps="vaapi"

  2786. h264_vaapi_hwaccel_select="h264_decoder"

  2787. h264_vdpau_hwaccel_deps="vdpau"

  2788. h264_vdpau_hwaccel_select="h264_decoder"

  2789. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2790. h264_videotoolbox_hwaccel_select="h264_decoder"

  2791. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2792. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2793. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2794. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2795. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2796. hevc_dxva2_hwaccel_select="hevc_decoder"

  2797. hevc_nvdec_hwaccel_deps="nvdec"

  2798. hevc_nvdec_hwaccel_select="hevc_decoder"

  2799. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2800. hevc_vaapi_hwaccel_select="hevc_decoder"

  2801. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2802. hevc_vdpau_hwaccel_select="hevc_decoder"

  2803. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2804. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2805. mjpeg_nvdec_hwaccel_deps="nvdec"

  2806. mjpeg_nvdec_hwaccel_select="mjpeg_decoder"

  2807. mjpeg_vaapi_hwaccel_deps="vaapi"

  2808. mjpeg_vaapi_hwaccel_select="mjpeg_decoder"

  2809. mpeg_xvmc_hwaccel_deps="xvmc"

  2810. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2811. mpeg1_nvdec_hwaccel_deps="nvdec"

  2812. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2813. mpeg1_vdpau_hwaccel_deps="vdpau"

  2814. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2815. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2816. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2817. mpeg1_xvmc_hwaccel_deps="xvmc"

  2818. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2819. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2820. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2821. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2822. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2823. mpeg2_dxva2_hwaccel_deps="dxva2"

  2824. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2825. mpeg2_nvdec_hwaccel_deps="nvdec"

  2826. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2827. mpeg2_vaapi_hwaccel_deps="vaapi"

  2828. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2829. mpeg2_vdpau_hwaccel_deps="vdpau"

  2830. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2831. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2832. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2833. mpeg2_xvmc_hwaccel_deps="xvmc"

  2834. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2835. mpeg4_nvdec_hwaccel_deps="nvdec"

  2836. mpeg4_nvdec_hwaccel_select="mpeg4_decoder"

  2837. mpeg4_vaapi_hwaccel_deps="vaapi"

  2838. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2839. mpeg4_vdpau_hwaccel_deps="vdpau"

  2840. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2841. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2842. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2843. vc1_d3d11va_hwaccel_deps="d3d11va"

  2844. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2845. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2846. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2847. vc1_dxva2_hwaccel_deps="dxva2"

  2848. vc1_dxva2_hwaccel_select="vc1_decoder"

  2849. vc1_nvdec_hwaccel_deps="nvdec"

  2850. vc1_nvdec_hwaccel_select="vc1_decoder"

  2851. vc1_vaapi_hwaccel_deps="vaapi"

  2852. vc1_vaapi_hwaccel_select="vc1_decoder"

  2853. vc1_vdpau_hwaccel_deps="vdpau"

  2854. vc1_vdpau_hwaccel_select="vc1_decoder"

  2855. vp8_nvdec_hwaccel_deps="nvdec"

  2856. vp8_nvdec_hwaccel_select="vp8_decoder"

  2857. vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"

  2858. vp8_vaapi_hwaccel_select="vp8_decoder"

  2859. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2860. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2861. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2862. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2863. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2864. vp9_dxva2_hwaccel_select="vp9_decoder"

  2865. vp9_nvdec_hwaccel_deps="nvdec"

  2866. vp9_nvdec_hwaccel_select="vp9_decoder"

  2867. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2868. vp9_vaapi_hwaccel_select="vp9_decoder"

  2869. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2870. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2871. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2872. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2873. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2874. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2875. 

  2876. # hardware-accelerated codecs

  2877. omx_deps="libdl pthreads"

  2878. omx_rpi_select="omx"

  2879. qsv_deps="libmfx"

  2880. qsvdec_select="qsv"

  2881. qsvenc_select="qsv"

  2882. qsvvpp_select="qsv"

  2883. vaapi_encode_deps="vaapi"

  2884. v4l2_m2m_deps="linux_videodev2_h sem_timedwait"

  2885. 

  2886. hwupload_cuda_filter_deps="ffnvcodec"

  2887. scale_npp_filter_deps="ffnvcodec libnpp"

  2888. scale_cuda_filter_deps="cuda_sdk"

  2889. thumbnail_cuda_filter_deps="cuda_sdk"

  2890. 

  2891. amf_deps_any="libdl LoadLibrary"

  2892. nvenc_deps="ffnvcodec"

  2893. nvenc_deps_any="libdl LoadLibrary"

  2894. nvenc_encoder_deps="nvenc"

  2895. 

  2896. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2897. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2898. h264_amf_encoder_deps="amf"

  2899. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2900. h264_cuvid_decoder_deps="cuvid"

  2901. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2902. h264_mediacodec_decoder_deps="mediacodec"

  2903. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2904. h264_mmal_decoder_deps="mmal"

  2905. h264_nvenc_encoder_deps="nvenc"

  2906. h264_omx_encoder_deps="omx"

  2907. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"

  2908. h264_qsv_encoder_select="qsvenc"

  2909. h264_rkmpp_decoder_deps="rkmpp"

  2910. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2911. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2912. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2913. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2914. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2915. hevc_amf_encoder_deps="amf"

  2916. hevc_cuvid_decoder_deps="cuvid"

  2917. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2918. hevc_mediacodec_decoder_deps="mediacodec"

  2919. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2920. hevc_nvenc_encoder_deps="nvenc"

  2921. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"

  2922. hevc_qsv_encoder_select="hevcparse qsvenc"

  2923. hevc_rkmpp_decoder_deps="rkmpp"

  2924. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2925. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2926. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2927. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2928. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2929. mjpeg_cuvid_decoder_deps="cuvid"

  2930. mjpeg_qsv_encoder_deps="libmfx"

  2931. mjpeg_qsv_encoder_select="qsvenc"

  2932. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2933. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2934. mpeg1_cuvid_decoder_deps="cuvid"

  2935. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2936. mpeg2_crystalhd_decoder_select="crystalhd"

  2937. mpeg2_cuvid_decoder_deps="cuvid"

  2938. mpeg2_mmal_decoder_deps="mmal"

  2939. mpeg2_mediacodec_decoder_deps="mediacodec"

  2940. mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"

  2941. mpeg2_qsv_encoder_select="qsvenc"

  2942. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2943. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2944. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2945. mpeg4_crystalhd_decoder_select="crystalhd"

  2946. mpeg4_cuvid_decoder_deps="cuvid"

  2947. mpeg4_mediacodec_decoder_deps="mediacodec"

  2948. mpeg4_mmal_decoder_deps="mmal"

  2949. mpeg4_omx_encoder_deps="omx"

  2950. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2951. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2952. msmpeg4_crystalhd_decoder_select="crystalhd"

  2953. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2954. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2955. vc1_crystalhd_decoder_select="crystalhd"

  2956. vc1_cuvid_decoder_deps="cuvid"

  2957. vc1_mmal_decoder_deps="mmal"

  2958. vc1_qsv_decoder_select="qsvdec vc1_parser"

  2959. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2960. vp8_cuvid_decoder_deps="cuvid"

  2961. vp8_mediacodec_decoder_deps="mediacodec"

  2962. vp8_qsv_decoder_select="qsvdec vp8_parser"

  2963. vp8_rkmpp_decoder_deps="rkmpp"

  2964. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2965. vp8_vaapi_encoder_select="vaapi_encode"

  2966. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2967. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2968. vp9_cuvid_decoder_deps="cuvid"

  2969. vp9_mediacodec_decoder_deps="mediacodec"

  2970. vp9_rkmpp_decoder_deps="rkmpp"

  2971. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2972. vp9_vaapi_encoder_select="vaapi_encode"

  2973. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2974. wmv3_crystalhd_decoder_select="crystalhd"

  2975. 

  2976. # parsers

  2977. aac_parser_select="adts_header"

  2978. h264_parser_select="golomb h264dsp h264parse"

  2979. hevc_parser_select="hevcparse"

  2980. mpegaudio_parser_select="mpegaudioheader"

  2981. mpegvideo_parser_select="mpegvideo"

  2982. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2983. vc1_parser_select="vc1dsp"

  2984. 

  2985. # bitstream_filters

  2986. aac_adtstoasc_bsf_select="adts_header"

  2987. filter_units_bsf_select="cbs"

  2988. h264_metadata_bsf_deps="const_nan"

  2989. h264_metadata_bsf_select="cbs_h264"

  2990. h264_redundant_pps_bsf_select="cbs_h264"

  2991. hevc_metadata_bsf_select="cbs_h265"

  2992. mjpeg2jpeg_bsf_select="jpegtables"

  2993. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2994. trace_headers_bsf_select="cbs"

  2995. vp9_metadata_bsf_select="cbs_vp9"

  2996. 

  2997. # external libraries

  2998. aac_at_decoder_deps="audiotoolbox"

  2999. aac_at_decoder_select="aac_adtstoasc_bsf"

  3000. ac3_at_decoder_deps="audiotoolbox"

  3001. ac3_at_decoder_select="ac3_parser"

  3002. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  3003. alac_at_decoder_deps="audiotoolbox"

  3004. amr_nb_at_decoder_deps="audiotoolbox"

  3005. avisynth_deps_any="libdl LoadLibrary"

  3006. avisynth_demuxer_deps="avisynth"

  3007. avisynth_demuxer_select="riffdec"

  3008. eac3_at_decoder_deps="audiotoolbox"

  3009. eac3_at_decoder_select="ac3_parser"

  3010. gsm_ms_at_decoder_deps="audiotoolbox"

  3011. ilbc_at_decoder_deps="audiotoolbox"

  3012. mp1_at_decoder_deps="audiotoolbox"

  3013. mp2_at_decoder_deps="audiotoolbox"

  3014. mp3_at_decoder_deps="audiotoolbox"

  3015. mp1_at_decoder_select="mpegaudioheader"

  3016. mp2_at_decoder_select="mpegaudioheader"

  3017. mp3_at_decoder_select="mpegaudioheader"

  3018. pcm_alaw_at_decoder_deps="audiotoolbox"

  3019. pcm_mulaw_at_decoder_deps="audiotoolbox"

  3020. qdmc_at_decoder_deps="audiotoolbox"

  3021. qdm2_at_decoder_deps="audiotoolbox"

  3022. aac_at_encoder_deps="audiotoolbox"

  3023. aac_at_encoder_select="audio_frame_queue"

  3024. alac_at_encoder_deps="audiotoolbox"

  3025. alac_at_encoder_select="audio_frame_queue"

  3026. ilbc_at_encoder_deps="audiotoolbox"

  3027. ilbc_at_encoder_select="audio_frame_queue"

  3028. pcm_alaw_at_encoder_deps="audiotoolbox"

  3029. pcm_alaw_at_encoder_select="audio_frame_queue"

  3030. pcm_mulaw_at_encoder_deps="audiotoolbox"

  3031. pcm_mulaw_at_encoder_select="audio_frame_queue"

  3032. chromaprint_muxer_deps="chromaprint"

  3033. h264_videotoolbox_encoder_deps="pthreads"

  3034. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  3035. hevc_videotoolbox_encoder_deps="pthreads"

  3036. hevc_videotoolbox_encoder_select="videotoolbox_encoder"

  3037. libaom_av1_decoder_deps="libaom"

  3038. libaom_av1_encoder_deps="libaom"

  3039. libcelt_decoder_deps="libcelt"

  3040. libcodec2_decoder_deps="libcodec2"

  3041. libcodec2_encoder_deps="libcodec2"

  3042. libfdk_aac_decoder_deps="libfdk_aac"

  3043. libfdk_aac_encoder_deps="libfdk_aac"

  3044. libfdk_aac_encoder_select="audio_frame_queue"

  3045. libgme_demuxer_deps="libgme"

  3046. libgsm_decoder_deps="libgsm"

  3047. libgsm_encoder_deps="libgsm"

  3048. libgsm_ms_decoder_deps="libgsm"

  3049. libgsm_ms_encoder_deps="libgsm"

  3050. libilbc_decoder_deps="libilbc"

  3051. libilbc_encoder_deps="libilbc"

  3052. libkvazaar_encoder_deps="libkvazaar"

  3053. libmodplug_demuxer_deps="libmodplug"

  3054. libmp3lame_encoder_deps="libmp3lame"

  3055. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  3056. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  3057. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  3058. libopencore_amrnb_encoder_select="audio_frame_queue"

  3059. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  3060. libopenh264_decoder_deps="libopenh264"

  3061. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  3062. libopenh264_encoder_deps="libopenh264"

  3063. libopenjpeg_decoder_deps="libopenjpeg"

  3064. libopenjpeg_encoder_deps="libopenjpeg"

  3065. libopenmpt_demuxer_deps="libopenmpt"

  3066. libopus_decoder_deps="libopus"

  3067. libopus_encoder_deps="libopus"

  3068. libopus_encoder_select="audio_frame_queue"

  3069. librsvg_decoder_deps="librsvg"

  3070. libshine_encoder_deps="libshine"

  3071. libshine_encoder_select="audio_frame_queue"

  3072. libspeex_decoder_deps="libspeex"

  3073. libspeex_encoder_deps="libspeex"

  3074. libspeex_encoder_select="audio_frame_queue"

  3075. libtheora_encoder_deps="libtheora"

  3076. libtwolame_encoder_deps="libtwolame"

  3077. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  3078. libvorbis_decoder_deps="libvorbis"

  3079. libvorbis_encoder_deps="libvorbis libvorbisenc"

  3080. libvorbis_encoder_select="audio_frame_queue"

  3081. libvpx_vp8_decoder_deps="libvpx"

  3082. libvpx_vp8_encoder_deps="libvpx"

  3083. libvpx_vp9_decoder_deps="libvpx"

  3084. libvpx_vp9_encoder_deps="libvpx"

  3085. libwavpack_encoder_deps="libwavpack"

  3086. libwavpack_encoder_select="audio_frame_queue"

  3087. libwebp_encoder_deps="libwebp"

  3088. libwebp_anim_encoder_deps="libwebp"

  3089. libx262_encoder_deps="libx262"

  3090. libx264_encoder_deps="libx264"

  3091. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  3092. libx264rgb_encoder_select="libx264_encoder"

  3093. libx265_encoder_deps="libx265"

  3094. libxavs_encoder_deps="libxavs"

  3095. libxvid_encoder_deps="libxvid"

  3096. libzvbi_teletext_decoder_deps="libzvbi"

  3097. vapoursynth_demuxer_deps="vapoursynth"

  3098. videotoolbox_suggest="coreservices"

  3099. videotoolbox_deps="corefoundation coremedia corevideo"

  3100. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  3101. 

  3102. # demuxers / muxers

  3103. ac3_demuxer_select="ac3_parser"

  3104. aiff_muxer_select="iso_media"

  3105. asf_demuxer_select="riffdec"

  3106. asf_o_demuxer_select="riffdec"

  3107. asf_muxer_select="riffenc"

  3108. asf_stream_muxer_select="asf_muxer"

  3109. avi_demuxer_select="iso_media riffdec exif"

  3110. avi_muxer_select="riffenc"

  3111. caf_demuxer_select="iso_media riffdec"

  3112. caf_muxer_select="iso_media"

  3113. dash_muxer_select="mp4_muxer"

  3114. dash_demuxer_deps="libxml2"

  3115. dirac_demuxer_select="dirac_parser"

  3116. dts_demuxer_select="dca_parser"

  3117. dtshd_demuxer_select="dca_parser"

  3118. dv_demuxer_select="dvprofile"

  3119. dv_muxer_select="dvprofile"

  3120. dxa_demuxer_select="riffdec"

  3121. eac3_demuxer_select="ac3_parser"

  3122. f4v_muxer_select="mov_muxer"

  3123. fifo_muxer_deps="threads"

  3124. flac_demuxer_select="flac_parser"

  3125. hds_muxer_select="flv_muxer"

  3126. hls_muxer_select="mpegts_muxer"

  3127. hls_muxer_suggest="gcrypt openssl"

  3128. image2_alias_pix_demuxer_select="image2_demuxer"

  3129. image2_brender_pix_demuxer_select="image2_demuxer"

  3130. ipod_muxer_select="mov_muxer"

  3131. ismv_muxer_select="mov_muxer"

  3132. matroska_audio_muxer_select="matroska_muxer"

  3133. matroska_demuxer_select="iso_media riffdec"

  3134. matroska_demuxer_suggest="bzlib lzo zlib"

  3135. matroska_muxer_select="iso_media riffenc"

  3136. mmf_muxer_select="riffenc"

  3137. mov_demuxer_select="iso_media riffdec"

  3138. mov_demuxer_suggest="zlib"

  3139. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3140. mp3_demuxer_select="mpegaudio_parser"

  3141. mp3_muxer_select="mpegaudioheader"

  3142. mp4_muxer_select="mov_muxer"

  3143. mpegts_demuxer_select="iso_media"

  3144. mpegts_muxer_select="adts_muxer latm_muxer"

  3145. mpegtsraw_demuxer_select="mpegts_demuxer"

  3146. mxf_d10_muxer_select="mxf_muxer"

  3147. mxf_opatom_muxer_select="mxf_muxer"

  3148. nut_muxer_select="riffenc"

  3149. nuv_demuxer_select="riffdec"

  3150. oga_muxer_select="ogg_muxer"

  3151. ogg_demuxer_select="dirac_parse"

  3152. ogv_muxer_select="ogg_muxer"

  3153. opus_muxer_select="ogg_muxer"

  3154. psp_muxer_select="mov_muxer"

  3155. rtp_demuxer_select="sdp_demuxer"

  3156. rtp_muxer_select="golomb"

  3157. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3158. rtsp_demuxer_select="http_protocol rtpdec"

  3159. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3160. sap_demuxer_select="sdp_demuxer"

  3161. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3162. sdp_demuxer_select="rtpdec"

  3163. smoothstreaming_muxer_select="ismv_muxer"

  3164. spdif_demuxer_select="adts_header"

  3165. spdif_muxer_select="adts_header"

  3166. spx_muxer_select="ogg_muxer"

  3167. swf_demuxer_suggest="zlib"

  3168. tak_demuxer_select="tak_parser"

  3169. tg2_muxer_select="mov_muxer"

  3170. tgp_muxer_select="mov_muxer"

  3171. vobsub_demuxer_select="mpegps_demuxer"

  3172. w64_demuxer_select="wav_demuxer"

  3173. w64_muxer_select="wav_muxer"

  3174. wav_demuxer_select="riffdec"

  3175. wav_muxer_select="riffenc"

  3176. webm_muxer_select="iso_media riffenc"

  3177. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3178. wtv_demuxer_select="mpegts_demuxer riffdec"

  3179. wtv_muxer_select="mpegts_muxer riffenc"

  3180. xmv_demuxer_select="riffdec"

  3181. xwma_demuxer_select="riffdec"

  3182. 

  3183. # indevs / outdevs

  3184. android_camera_indev_deps="android camera2ndk mediandk pthreads"

  3185. android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"

  3186. alsa_indev_deps="alsa"

  3187. alsa_outdev_deps="alsa"

  3188. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3189. avfoundation_indev_suggest="coregraphics applicationservices"

  3190. avfoundation_indev_extralibs="-framework Foundation"

  3191. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3192. caca_outdev_deps="libcaca"

  3193. decklink_deps_any="libdl LoadLibrary"

  3194. decklink_indev_deps="decklink threads"

  3195. decklink_indev_extralibs="-lstdc++"

  3196. decklink_outdev_deps="decklink threads"

  3197. decklink_outdev_extralibs="-lstdc++"

  3198. libndi_newtek_indev_deps="libndi_newtek"

  3199. libndi_newtek_indev_extralibs="-lndi"

  3200. libndi_newtek_outdev_deps="libndi_newtek"

  3201. libndi_newtek_outdev_extralibs="-lndi"

  3202. dshow_indev_deps="IBaseFilter"

  3203. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3204. fbdev_indev_deps="linux_fb_h"

  3205. fbdev_outdev_deps="linux_fb_h"

  3206. gdigrab_indev_deps="CreateDIBSection"

  3207. gdigrab_indev_extralibs="-lgdi32"

  3208. gdigrab_indev_select="bmp_decoder"

  3209. iec61883_indev_deps="libiec61883"

  3210. jack_indev_deps="libjack"

  3211. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3212. kmsgrab_indev_deps="libdrm"

  3213. lavfi_indev_deps="avfilter"

  3214. libcdio_indev_deps="libcdio"

  3215. libdc1394_indev_deps="libdc1394"

  3216. openal_indev_deps="openal"

  3217. opengl_outdev_deps="opengl"

  3218. oss_indev_deps_any="sys_soundcard_h"

  3219. oss_outdev_deps_any="sys_soundcard_h"

  3220. pulse_indev_deps="libpulse"

  3221. pulse_outdev_deps="libpulse"

  3222. sdl2_outdev_deps="sdl2"

  3223. sndio_indev_deps="sndio"

  3224. sndio_outdev_deps="sndio"

  3225. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3226. v4l2_indev_suggest="libv4l2"

  3227. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3228. v4l2_outdev_suggest="libv4l2"

  3229. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3230. xcbgrab_indev_deps="libxcb"

  3231. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3232. xv_outdev_deps="xlib"

  3233. 

  3234. # protocols

  3235. async_protocol_deps="threads"

  3236. bluray_protocol_deps="libbluray"

  3237. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3238. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3239. ffrtmpcrypt_protocol_select="tcp_protocol"

  3240. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3241. ffrtmphttp_protocol_select="http_protocol"

  3242. ftp_protocol_select="tcp_protocol"

  3243. gopher_protocol_select="network"

  3244. http_protocol_select="tcp_protocol"

  3245. http_protocol_suggest="zlib"

  3246. httpproxy_protocol_select="tcp_protocol"

  3247. httpproxy_protocol_suggest="zlib"

  3248. https_protocol_select="tls_protocol"

  3249. https_protocol_suggest="zlib"

  3250. icecast_protocol_select="http_protocol"

  3251. librtmp_protocol_deps="librtmp"

  3252. librtmpe_protocol_deps="librtmp"

  3253. librtmps_protocol_deps="librtmp"

  3254. librtmpt_protocol_deps="librtmp"

  3255. librtmpte_protocol_deps="librtmp"

  3256. libsmbclient_protocol_deps="libsmbclient gplv3"

  3257. libssh_protocol_deps="libssh"

  3258. libtls_conflict="openssl gnutls"

  3259. mmsh_protocol_select="http_protocol"

  3260. mmst_protocol_select="network"

  3261. libsrt_protocol_deps="libsrt"

  3262. libsrt_protocol_select="network"

  3263. rtmp_protocol_conflict="librtmp_protocol"

  3264. rtmp_protocol_select="tcp_protocol"

  3265. rtmp_protocol_suggest="zlib"

  3266. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3267. rtmpe_protocol_suggest="zlib"

  3268. rtmps_protocol_conflict="librtmp_protocol"

  3269. rtmps_protocol_select="tls_protocol"

  3270. rtmps_protocol_suggest="zlib"

  3271. rtmpt_protocol_select="ffrtmphttp_protocol"

  3272. rtmpt_protocol_suggest="zlib"

  3273. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3274. rtmpte_protocol_suggest="zlib"

  3275. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3276. rtmpts_protocol_suggest="zlib"

  3277. rtp_protocol_select="udp_protocol"

  3278. schannel_conflict="openssl gnutls libtls"

  3279. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3280. sctp_protocol_select="network"

  3281. securetransport_conflict="openssl gnutls libtls"

  3282. srtp_protocol_select="rtp_protocol srtp"

  3283. tcp_protocol_select="network"

  3284. tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"

  3285. tls_protocol_select="tcp_protocol"

  3286. udp_protocol_select="network"

  3287. udplite_protocol_select="network"

  3288. unix_protocol_deps="sys_un_h"

  3289. unix_protocol_select="network"

  3290. 

  3291. # filters

  3292. afftfilt_filter_deps="avcodec"

  3293. afftfilt_filter_select="fft"

  3294. afir_filter_deps="avcodec"

  3295. afir_filter_select="fft"

  3296. amovie_filter_deps="avcodec avformat"

  3297. aresample_filter_deps="swresample"

  3298. ass_filter_deps="libass"

  3299. atempo_filter_deps="avcodec"

  3300. atempo_filter_select="rdft"

  3301. avgblur_opencl_filter_deps="opencl"

  3302. azmq_filter_deps="libzmq"

  3303. blackframe_filter_deps="gpl"

  3304. boxblur_filter_deps="gpl"

  3305. bs2b_filter_deps="libbs2b"

  3306. colormatrix_filter_deps="gpl"

  3307. convolution_opencl_filter_deps="opencl"

  3308. convolve_filter_deps="avcodec"

  3309. convolve_filter_select="fft"

  3310. coreimage_filter_deps="coreimage appkit"

  3311. coreimage_filter_extralibs="-framework OpenGL"

  3312. coreimagesrc_filter_deps="coreimage appkit"

  3313. coreimagesrc_filter_extralibs="-framework OpenGL"

  3314. cover_rect_filter_deps="avcodec avformat gpl"

  3315. cropdetect_filter_deps="gpl"

  3316. deconvolve_filter_deps="avcodec"

  3317. deconvolve_filter_select="fft"

  3318. deinterlace_qsv_filter_deps="libmfx"

  3319. deinterlace_vaapi_filter_deps="vaapi"

  3320. delogo_filter_deps="gpl"

  3321. denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3322. deshake_filter_select="pixelutils"

  3323. drawtext_filter_deps="libfreetype"

  3324. drawtext_filter_suggest="libfontconfig libfribidi"

  3325. elbg_filter_deps="avcodec"

  3326. eq_filter_deps="gpl"

  3327. fftfilt_filter_deps="avcodec"

  3328. fftfilt_filter_select="rdft"

  3329. fftdnoiz_filter_deps="avcodec"

  3330. fftdnoiz_filter_select="fft"

  3331. find_rect_filter_deps="avcodec avformat gpl"

  3332. firequalizer_filter_deps="avcodec"

  3333. firequalizer_filter_select="rdft"

  3334. flite_filter_deps="libflite"

  3335. framerate_filter_select="pixelutils"

  3336. frei0r_filter_deps="frei0r libdl"

  3337. frei0r_src_filter_deps="frei0r libdl"

  3338. fspp_filter_deps="gpl"

  3339. geq_filter_deps="gpl"

  3340. histeq_filter_deps="gpl"

  3341. hqdn3d_filter_deps="gpl"

  3342. interlace_filter_deps="gpl"

  3343. kerndeint_filter_deps="gpl"

  3344. ladspa_filter_deps="ladspa libdl"

  3345. lv2_filter_deps="lv2"

  3346. mcdeint_filter_deps="avcodec gpl"

  3347. movie_filter_deps="avcodec avformat"

  3348. mpdecimate_filter_deps="gpl"

  3349. mpdecimate_filter_select="pixelutils"

  3350. mptestsrc_filter_deps="gpl"

  3351. negate_filter_deps="lut_filter"

  3352. nnedi_filter_deps="gpl"

  3353. ocr_filter_deps="libtesseract"

  3354. ocv_filter_deps="libopencv"

  3355. openclsrc_filter_deps="opencl"

  3356. overlay_opencl_filter_deps="opencl"

  3357. overlay_qsv_filter_deps="libmfx"

  3358. overlay_qsv_filter_select="qsvvpp"

  3359. owdenoise_filter_deps="gpl"

  3360. pan_filter_deps="swresample"

  3361. perspective_filter_deps="gpl"

  3362. phase_filter_deps="gpl"

  3363. pp7_filter_deps="gpl"

  3364. pp_filter_deps="gpl postproc"

  3365. procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3366. program_opencl_filter_deps="opencl"

  3367. pullup_filter_deps="gpl"

  3368. removelogo_filter_deps="avcodec avformat swscale"

  3369. repeatfields_filter_deps="gpl"

  3370. resample_filter_deps="avresample"

  3371. rubberband_filter_deps="librubberband"

  3372. sab_filter_deps="gpl swscale"

  3373. scale2ref_filter_deps="swscale"

  3374. scale_filter_deps="swscale"

  3375. scale_qsv_filter_deps="libmfx"

  3376. select_filter_select="pixelutils"

  3377. sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3378. showcqt_filter_deps="avcodec avformat swscale"

  3379. showcqt_filter_suggest="libfontconfig libfreetype"

  3380. showcqt_filter_select="fft"

  3381. showfreqs_filter_deps="avcodec"

  3382. showfreqs_filter_select="fft"

  3383. showspectrum_filter_deps="avcodec"

  3384. showspectrum_filter_select="fft"

  3385. showspectrumpic_filter_deps="avcodec"

  3386. showspectrumpic_filter_select="fft"

  3387. signature_filter_deps="gpl avcodec avformat"

  3388. smartblur_filter_deps="gpl swscale"

  3389. sofalizer_filter_deps="libmysofa avcodec"

  3390. sofalizer_filter_select="fft"

  3391. spectrumsynth_filter_deps="avcodec"

  3392. spectrumsynth_filter_select="fft"

  3393. spp_filter_deps="gpl avcodec"

  3394. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3395. srcnn_filter_deps="avformat"

  3396. stereo3d_filter_deps="gpl"

  3397. subtitles_filter_deps="avformat avcodec libass"

  3398. super2xsai_filter_deps="gpl"

  3399. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3400. tinterlace_filter_deps="gpl"

  3401. tinterlace_merge_test_deps="tinterlace_filter"

  3402. tinterlace_pad_test_deps="tinterlace_filter"

  3403. tonemap_filter_deps="const_nan"

  3404. unsharp_opencl_filter_deps="opencl"

  3405. uspp_filter_deps="gpl avcodec"

  3406. vaguedenoiser_filter_deps="gpl"

  3407. vidstabdetect_filter_deps="libvidstab"

  3408. vidstabtransform_filter_deps="libvidstab"

  3409. libvmaf_filter_deps="libvmaf pthreads"

  3410. zmq_filter_deps="libzmq"

  3411. zoompan_filter_deps="swscale"

  3412. zscale_filter_deps="libzimg const_nan"

  3413. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3414. vpp_qsv_filter_deps="libmfx"

  3415. vpp_qsv_filter_select="qsvvpp"

  3416. 

  3417. # examples

  3418. avio_dir_cmd_deps="avformat avutil"

  3419. avio_reading_deps="avformat avcodec avutil"

  3420. decode_audio_example_deps="avcodec avutil"

  3421. decode_video_example_deps="avcodec avutil"

  3422. demuxing_decoding_example_deps="avcodec avformat avutil"

  3423. encode_audio_example_deps="avcodec avutil"

  3424. encode_video_example_deps="avcodec avutil"

  3425. extract_mvs_example_deps="avcodec avformat avutil"

  3426. filter_audio_example_deps="avfilter avutil"

  3427. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3428. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3429. http_multiclient_example_deps="avformat avutil fork"

  3430. hw_decode_example_deps="avcodec avformat avutil"

  3431. metadata_example_deps="avformat avutil"

  3432. muxing_example_deps="avcodec avformat avutil swscale"

  3433. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3434. remuxing_example_deps="avcodec avformat avutil"

  3435. resampling_audio_example_deps="avutil swresample"

  3436. scaling_video_example_deps="avutil swscale"

  3437. transcode_aac_example_deps="avcodec avformat swresample"

  3438. transcoding_example_deps="avfilter avcodec avformat avutil"

  3439. vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"

  3440. vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"

  3441. 

  3442. # EXTRALIBS_LIST

  3443. cpu_init_extralibs="pthreads_extralibs"

  3444. cws2fws_extralibs="zlib_extralibs"

  3445. 

  3446. # libraries, in linking order

  3447. avcodec_deps="avutil"

  3448. avcodec_suggest="libm"

  3449. avcodec_select="null_bsf"

  3450. avdevice_deps="avformat avcodec avutil"

  3451. avdevice_suggest="libm"

  3452. avfilter_deps="avutil"

  3453. avfilter_suggest="libm"

  3454. avformat_deps="avcodec avutil"

  3455. avformat_suggest="libm network zlib"

  3456. avresample_deps="avutil"

  3457. avresample_suggest="libm"

  3458. avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"

  3459. postproc_deps="avutil gpl"

  3460. postproc_suggest="libm"

  3461. swresample_deps="avutil"

  3462. swresample_suggest="libm libsoxr"

  3463. swscale_deps="avutil"

  3464. swscale_suggest="libm"

  3465. 

  3466. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3467. avfilter_extralibs="pthreads_extralibs"

  3468. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3469. 

  3470. # programs

  3471. ffmpeg_deps="avcodec avfilter avformat"

  3472. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3473.                null_filter

  3474.                trim_filter"

  3475. ffmpeg_suggest="ole32 psapi shell32"

  3476. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3477. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3478. ffplay_suggest="shell32"

  3479. ffprobe_deps="avcodec avformat"

  3480. ffprobe_suggest="shell32"

  3481. 

  3482. # documentation

  3483. podpages_deps="perl"

  3484. manpages_deps="perl pod2man"

  3485. htmlpages_deps="perl"

  3486. htmlpages_deps_any="makeinfo_html texi2html"

  3487. txtpages_deps="perl makeinfo"

  3488. doc_deps_any="manpages htmlpages podpages txtpages"

  3489. 

  3490. # default parameters

  3491. 

  3492. logfile="ffbuild/config.log"

  3493. 

  3494. # installation paths

  3495. prefix_default="/usr/local"

  3496. bindir_default='${prefix}/bin'

  3497. datadir_default='${prefix}/share/ffmpeg'

  3498. docdir_default='${prefix}/share/doc/ffmpeg'

  3499. incdir_default='${prefix}/include'

  3500. libdir_default='${prefix}/lib'

  3501. mandir_default='${prefix}/share/man'

  3502. 

  3503. # toolchain

  3504. ar_default="ar"

  3505. cc_default="gcc"

  3506. cxx_default="g++"

  3507. host_cc_default="gcc"

  3508. doxygen_default="doxygen"

  3509. install="install"

  3510. ln_s_default="ln -s -f"

  3511. nm_default="nm -g"

  3512. pkg_config_default=pkg-config

  3513. ranlib_default="ranlib"

  3514. strip_default="strip"

  3515. version_script='--version-script'

  3516. objformat="elf32"

  3517. x86asmexe_default="nasm"

  3518. windres_default="windres"

  3519. nvcc_default="nvcc"

  3520. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3521. striptype="direct"

  3522. 

  3523. # OS

  3524. target_os_default=$(tolower $(uname -s))

  3525. host_os=$target_os_default

  3526. 

  3527. # machine

  3528. if test "$target_os_default" = aix; then

  3529.     arch_default=$(uname -p)

  3530.     strip_default="strip -X32_64"

  3531. else

  3532.     arch_default=$(uname -m)

  3533. fi

  3534. cpu="generic"

  3535. intrinsics="none"

  3536. 

  3537. # configurable options

  3538. enable $PROGRAM_LIST

  3539. enable $DOCUMENT_LIST

  3540. enable $EXAMPLE_LIST

  3541. enable $(filter_out avresample $LIBRARY_LIST)

  3542. enable stripping

  3543. 

  3544. enable asm

  3545. enable debug

  3546. enable doc

  3547. enable faan faandct faanidct

  3548. enable optimizations

  3549. enable runtime_cpudetect

  3550. enable safe_bitstream_reader

  3551. enable static

  3552. enable swscale_alpha

  3553. enable valgrind_backtrace

  3554. 

  3555. sws_max_filter_size_default=256

  3556. set_default sws_max_filter_size

  3557. 

  3558. # internal components are enabled by default

  3559. enable $EXTRALIBS_LIST

  3560. 

  3561. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3562. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3563. 

  3564. # build settings

  3565. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3566. LIBPREF="lib"

  3567. LIBSUF=".a"

  3568. FULLNAME='$(NAME)$(BUILDSUF)'

  3569. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3570. SLIBPREF="lib"

  3571. SLIBSUF=".so"

  3572. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3573. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3574. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3575. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3576. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3577. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3578. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3579. 

  3580. asflags_filter=echo

  3581. cflags_filter=echo

  3582. ldflags_filter=echo

  3583. 

  3584. AS_C='-c'

  3585. AS_O='-o $@'

  3586. CC_C='-c'

  3587. CC_E='-E -o $@'

  3588. CC_O='-o $@'

  3589. CXX_C='-c'

  3590. CXX_O='-o $@'

  3591. OBJCC_C='-c'

  3592. OBJCC_E='-E -o $@'

  3593. OBJCC_O='-o $@'

  3594. X86ASM_O='-o $@'

  3595. LD_O='-o $@'

  3596. LD_LIB='-l%'

  3597. LD_PATH='-L'

  3598. HOSTCC_C='-c'

  3599. HOSTCC_E='-E -o $@'

  3600. HOSTCC_O='-o $@'

  3601. HOSTLD_O='-o $@'

  3602. NVCC_C='-c'

  3603. NVCC_O='-o $@'

  3604. 

  3605. host_extralibs='-lm'

  3606. host_cflags_filter=echo

  3607. host_ldflags_filter=echo

  3608. 

  3609. target_path='$(CURDIR)'

  3610. 

  3611. # since the object filename is not given with the -MM flag, the compiler

  3612. # is only able to print the basename, and we must add the path ourselves

  3613. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3614. DEPFLAGS='-MM'

  3615. 

  3616. mkdir -p ffbuild

  3617. 

  3618. # find source path

  3619. if test -f configure; then

  3620.     source_path=.

  3621. else

  3622.     source_path=$(cd $(dirname "$0"); pwd)

  3623.     case "$source_path" in

  3624.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3625.     esac

  3626.     test -e "$source_path/config.h" &&

  3627.         die "Out of tree builds are impossible with config.h in source dir."

  3628. fi

  3629. 

  3630. for v in "$@"; do

  3631.     r=${v#*=}

  3632.     l=${v%"$r"}

  3633.     r=$(sh_quote "$r")

  3634.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3635. done

  3636. 

  3637. find_things_extern(){

  3638.     thing=$1

  3639.     pattern=$2

  3640.     file=$source_path/$3

  3641.     out=${4:-$thing}

  3642.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"

  3643. }

  3644. 

  3645. find_filters_extern(){

  3646.     file=$source_path/$1

  3647.     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file

  3648.     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file

  3649. }

  3650. 

  3651. FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)

  3652. OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)

  3653. INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)

  3654. MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)

  3655. DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)

  3656. ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)

  3657. DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)

  3658. CODEC_LIST="

  3659.     $ENCODER_LIST

  3660.     $DECODER_LIST

  3661. "

  3662. PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)

  3663. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3664. HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)

  3665. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3666. 

  3667. AVCODEC_COMPONENTS_LIST="

  3668.     $BSF_LIST

  3669.     $DECODER_LIST

  3670.     $ENCODER_LIST

  3671.     $HWACCEL_LIST

  3672.     $PARSER_LIST

  3673. "

  3674. 

  3675. AVDEVICE_COMPONENTS_LIST="

  3676.     $INDEV_LIST

  3677.     $OUTDEV_LIST

  3678. "

  3679. 

  3680. AVFILTER_COMPONENTS_LIST="

  3681.     $FILTER_LIST

  3682. "

  3683. 

  3684. AVFORMAT_COMPONENTS_LIST="

  3685.     $DEMUXER_LIST

  3686.     $MUXER_LIST

  3687.     $PROTOCOL_LIST

  3688. "

  3689. 

  3690. ALL_COMPONENTS="

  3691.     $AVCODEC_COMPONENTS_LIST

  3692.     $AVDEVICE_COMPONENTS_LIST

  3693.     $AVFILTER_COMPONENTS_LIST

  3694.     $AVFORMAT_COMPONENTS_LIST

  3695. "

  3696. 

  3697. for n in $COMPONENT_LIST; do

  3698.     v=$(toupper ${n%s})_LIST

  3699.     eval enable \$$v

  3700.     eval ${n}_if_any="\$$v"

  3701. done

  3702. 

  3703. enable $ARCH_EXT_LIST

  3704. 

  3705. die_unknown(){

  3706.     echo "Unknown option \"$1\"."

  3707.     echo "See $0 --help for available options."

  3708.     exit 1

  3709. }

  3710. 

  3711. print_in_columns() {

  3712.     cols=$(expr $ncols / 24)

  3713.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3714. }

  3715. 

  3716. show_list() {

  3717.     suffix=_$1

  3718.     shift

  3719.     echo $* | sed s/$suffix//g | print_in_columns

  3720.     exit 0

  3721. }

  3722. 

  3723. rand_list(){

  3724.     IFS=', '

  3725.     set -- $*

  3726.     unset IFS

  3727.     for thing; do

  3728.         comp=${thing%:*}

  3729.         prob=${thing#$comp}

  3730.         prob=${prob#:}

  3731.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3732.         echo "prob ${prob:-0.5}"

  3733.         printf '%s\n' $comp

  3734.     done

  3735. }

  3736. 

  3737. do_random(){

  3738.     action=$1

  3739.     shift

  3740.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3741.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3742. }

  3743. 

  3744. for opt do

  3745.     optval="${opt#*=}"

  3746.     case "$opt" in

  3747.         --extra-ldflags=*)

  3748.             add_ldflags $optval

  3749.         ;;

  3750.         --extra-ldexeflags=*)

  3751.             add_ldexeflags $optval

  3752.         ;;

  3753.         --extra-ldsoflags=*)

  3754.             add_ldsoflags $optval

  3755.         ;;

  3756.         --extra-ldlibflags=*)

  3757.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3758.                  "removed in the future. Use --extra-ldsoflags instead."

  3759.             add_ldsoflags $optval

  3760.         ;;

  3761.         --extra-libs=*)

  3762.             add_extralibs $optval

  3763.         ;;

  3764.         --disable-devices)

  3765.             disable $INDEV_LIST $OUTDEV_LIST

  3766.         ;;

  3767.         --enable-debug=*)

  3768.             debuglevel="$optval"

  3769.         ;;

  3770.         --disable-programs)

  3771.             disable $PROGRAM_LIST

  3772.         ;;

  3773.         --disable-everything)

  3774.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3775.         ;;

  3776.         --disable-all)

  3777.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3778.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3779.             enable avutil

  3780.         ;;

  3781.         --enable-random|--disable-random)

  3782.             action=${opt%%-random}

  3783.             do_random ${action#--} $COMPONENT_LIST

  3784.         ;;

  3785.         --enable-random=*|--disable-random=*)

  3786.             action=${opt%%-random=*}

  3787.             do_random ${action#--} $optval

  3788.         ;;

  3789.         --enable-sdl)

  3790.             enable sdl2

  3791.         ;;

  3792.         --enable-*=*|--disable-*=*)

  3793.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3794.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3795.             eval list=\$$(toupper $thing)_LIST

  3796.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3797.             list=$(filter "$name" $list)

  3798.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3799.             $action $list

  3800.         ;;

  3801.         --enable-yasm|--disable-yasm)

  3802.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3803.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3804.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3805.         ;;

  3806.         --yasmexe=*)

  3807.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3808.                  "removed in the future. Use --x86asmexe instead."

  3809.             x86asmexe="$optval"

  3810.         ;;

  3811.         --enable-?*|--disable-?*)

  3812.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3813.             if is_in $option $COMPONENT_LIST; then

  3814.                 test $action = disable && action=unset

  3815.                 eval $action \$$(toupper ${option%s})_LIST

  3816.             elif is_in $option $CMDLINE_SELECT; then

  3817.                 $action $option

  3818.             else

  3819.                 die_unknown $opt

  3820.             fi

  3821.         ;;

  3822.         --list-*)

  3823.             NAME="${opt#--list-}"

  3824.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3825.             NAME=${NAME%s}

  3826.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3827.         ;;

  3828.         --help|-h) show_help

  3829.         ;;

  3830.         --quiet|-q) quiet=yes

  3831.         ;;

  3832.         --fatal-warnings) enable fatal_warnings

  3833.         ;;

  3834.         --libfuzzer=*)

  3835.             libfuzzer_path="$optval"

  3836.         ;;

  3837.         *)

  3838.             optname="${opt%%=*}"

  3839.             optname="${optname#--}"

  3840.             optname=$(echo "$optname" | sed 's/-/_/g')

  3841.             if is_in $optname $CMDLINE_SET; then

  3842.                 eval $optname='$optval'

  3843.             elif is_in $optname $CMDLINE_APPEND; then

  3844.                 append $optname "$optval"

  3845.             else

  3846.                 die_unknown $opt

  3847.             fi

  3848.         ;;

  3849.     esac

  3850. done

  3851. 

  3852. for e in $env; do

  3853.     eval "export $e"

  3854. done

  3855. 

  3856. if disabled autodetect; then

  3857. 

  3858.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3859.     # for the iconv from the libc.

  3860.     disabled iconv || enable libc_iconv

  3861. 

  3862.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3863.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3864. fi

  3865. # Mark specifically enabled, but normally autodetected libraries as requested.

  3866. for lib in $AUTODETECT_LIBS; do

  3867.     enabled $lib && request $lib

  3868. done

  3869. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3870. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3871. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3872. 

  3873. disabled logging && logfile=/dev/null

  3874. 

  3875. # command line configuration sanity checks

  3876. 

  3877. # we need to build at least one lib type

  3878. if ! enabled_any static shared; then

  3879.     cat <<EOF

  3880. At least one library type must be built.

  3881. Specify --enable-static to build the static libraries or --enable-shared to

  3882. build the shared libraries as well. To only build the shared libraries specify

  3883. --disable-static in addition to --enable-shared.

  3884. EOF

  3885.     exit 1

  3886. fi

  3887. 

  3888. die_license_disabled() {

  3889.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3890. }

  3891. 

  3892. die_license_disabled_gpl() {

  3893.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3894. }

  3895. 

  3896. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3897. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3898. 

  3899. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3900. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3901. 

  3902. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3903. 

  3904. if enabled nonfree; then

  3905.     license="nonfree and unredistributable"

  3906. elif enabled gplv3; then

  3907.     license="GPL version 3 or later"

  3908. elif enabled lgplv3; then

  3909.     license="LGPL version 3 or later"

  3910. elif enabled gpl; then

  3911.     license="GPL version 2 or later"

  3912. else

  3913.     license="LGPL version 2.1 or later"

  3914. fi

  3915. 

  3916. enabled_all gnutls openssl &&

  3917.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3918. 

  3919. # Disable all the library-specific components if the library itself

  3920. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3921. 

  3922. disable_components(){

  3923.     disabled ${1} && disable $(

  3924.         eval components="\$$(toupper ${1})_COMPONENTS"

  3925.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3926.     )

  3927. }

  3928. 

  3929. map 'disable_components $v' $LIBRARY_LIST

  3930. 

  3931. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3932. set >> $logfile

  3933. 

  3934. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3935. 

  3936. enabled ossfuzz && {

  3937.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3938.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3939. }

  3940. 

  3941. case "$toolchain" in

  3942.     *-asan)

  3943.         cc_default="${toolchain%-asan}"

  3944.         add_cflags  -fsanitize=address

  3945.         add_ldflags -fsanitize=address

  3946.     ;;

  3947.     *-msan)

  3948.         cc_default="${toolchain%-msan}"

  3949.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3950.         add_ldflags -fsanitize=memory

  3951.     ;;

  3952.     *-tsan)

  3953.         cc_default="${toolchain%-tsan}"

  3954.         add_cflags  -fsanitize=thread -fPIE

  3955.         add_ldflags -fsanitize=thread -pie

  3956.         case "$toolchain" in

  3957.             gcc-tsan)

  3958.                 add_cflags  -fPIC

  3959.                 add_ldflags -fPIC

  3960.                 ;;

  3961.         esac

  3962.     ;;

  3963.     *-usan)

  3964.         cc_default="${toolchain%-usan}"

  3965.         add_cflags  -fsanitize=undefined

  3966.         add_ldflags -fsanitize=undefined

  3967.     ;;

  3968.     valgrind-*)

  3969.         target_exec_default="valgrind"

  3970.         case "$toolchain" in

  3971.             valgrind-massif)

  3972.                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"

  3973.                 ;;

  3974.             valgrind-memcheck)

  3975.                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"

  3976.                 ;;

  3977.         esac

  3978.     ;;

  3979.     msvc)

  3980.         # Check whether the current MSVC version needs the C99 converter.

  3981.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3982.         # support enough of C99 to build ffmpeg. Default to the new

  3983.         # behaviour if the regexp was unable to match anything, since this

  3984.         # successfully parses the version number of existing supported

  3985.         # versions that require the converter (MSVC 2010 and 2012).

  3986.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3987.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3988.             cc_default="cl"

  3989.             cxx_default="cl"

  3990.         else

  3991.             die "Unsupported MSVC version (2013 or newer required)"

  3992.         fi

  3993.         ld_default="$source_path/compat/windows/mslink"

  3994.         nm_default="dumpbin -symbols"

  3995.         ar_default="lib"

  3996.         case "$arch" in

  3997.         aarch64|arm64)

  3998.             as_default="armasm64"

  3999.             ;;

  4000.         arm*)

  4001.             as_default="armasm"

  4002.             ;;

  4003.         esac

  4004.         target_os_default="win32"

  4005.         # Use a relative path for TMPDIR. This makes sure all the

  4006.         # ffconf temp files are written with a relative path, avoiding

  4007.         # issues with msys/win32 path conversion for MSVC parameters

  4008.         # such as -Fo<file> or -out:<file>.

  4009.         TMPDIR=.

  4010.     ;;

  4011.     icl)

  4012.         cc_default="icl"

  4013.         ld_default="xilink"

  4014.         nm_default="dumpbin -symbols"

  4015.         ar_default="xilib"

  4016.         target_os_default="win32"

  4017.         TMPDIR=.

  4018.     ;;

  4019.     gcov)

  4020.         add_cflags  -fprofile-arcs -ftest-coverage

  4021.         add_ldflags -fprofile-arcs -ftest-coverage

  4022.     ;;

  4023.     llvm-cov)

  4024.         add_cflags -fprofile-arcs -ftest-coverage

  4025.         add_ldflags --coverage

  4026.     ;;

  4027.     hardened)

  4028.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  4029.         add_cflags   -fno-strict-overflow -fstack-protector-all

  4030.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  4031.         add_cflags   -fPIE

  4032.         add_ldexeflags -fPIE -pie

  4033.     ;;

  4034.     ?*)

  4035.         die "Unknown toolchain $toolchain"

  4036.     ;;

  4037. esac

  4038. 

  4039. if test -n "$cross_prefix"; then

  4040.     test -n "$arch" && test -n "$target_os" ||

  4041.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  4042.     enable cross_compile

  4043. fi

  4044. 

  4045. ar_default="${cross_prefix}${ar_default}"

  4046. cc_default="${cross_prefix}${cc_default}"

  4047. cxx_default="${cross_prefix}${cxx_default}"

  4048. nm_default="${cross_prefix}${nm_default}"

  4049. pkg_config_default="${cross_prefix}${pkg_config_default}"

  4050. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  4051.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  4052. else

  4053.     ranlib_default="${cross_prefix}${ranlib_default}"

  4054. fi

  4055. strip_default="${cross_prefix}${strip_default}"

  4056. windres_default="${cross_prefix}${windres_default}"

  4057. 

  4058. sysinclude_default="${sysroot}/usr/include"

  4059. 

  4060. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  4061.     target_exec target_os x86asmexe nvcc

  4062. enabled cross_compile || host_cc_default=$cc

  4063. set_default host_cc

  4064. 

  4065. pkg_config_fail_message=""

  4066. if ! $pkg_config --version >/dev/null 2>&1; then

  4067.     warn "$pkg_config not found, library detection may fail."

  4068.     pkg_config=false

  4069. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  4070.     pkg_config_fail_message="

  4071. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  4072. fi

  4073. 

  4074. if test $doxygen != $doxygen_default && \

  4075.   ! $doxygen --version >/dev/null 2>&1; then

  4076.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  4077. fi

  4078. 

  4079. exesuf() {

  4080.     case $1 in

  4081.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  4082.     esac

  4083. }

  4084. 

  4085. EXESUF=$(exesuf $target_os)

  4086. HOSTEXESUF=$(exesuf $host_os)

  4087. 

  4088. # set temporary file name

  4089. : ${TMPDIR:=$TEMPDIR}

  4090. : ${TMPDIR:=$TMP}

  4091. : ${TMPDIR:=/tmp}

  4092. 

  4093. if [ -n "$tempprefix" ] ; then

  4094.     mktemp(){

  4095.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  4096.         echo "$tmpname"

  4097.         mkdir "$tmpname"

  4098.     }

  4099. elif ! test_cmd mktemp -u XXXXXX; then

  4100.     # simple replacement for missing mktemp

  4101.     # NOT SAFE FOR GENERAL USE

  4102.     mktemp(){

  4103.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  4104.         echo "$tmpname"

  4105.         mkdir "$tmpname"

  4106.     }

  4107. fi

  4108. 

  4109. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  4110.     die "Unable to create temporary directory in $TMPDIR."

  4111. 

  4112. tmpfile(){

  4113.     tmp="${FFTMPDIR}/test"$2

  4114.     (set -C; exec > $tmp) 2> /dev/null ||

  4115.         die "Unable to create temporary file in $FFTMPDIR."

  4116.     eval $1=$tmp

  4117. }

  4118. 

  4119. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  4120. trap 'exit 2' INT

  4121. 

  4122. tmpfile TMPASM .asm

  4123. tmpfile TMPC   .c

  4124. tmpfile TMPCPP .cpp

  4125. tmpfile TMPE   $EXESUF

  4126. tmpfile TMPH   .h

  4127. tmpfile TMPM   .m

  4128. tmpfile TMPO   .o

  4129. tmpfile TMPS   .S

  4130. tmpfile TMPSH  .sh

  4131. tmpfile TMPV   .ver

  4132. 

  4133. unset -f mktemp

  4134. 

  4135. chmod +x $TMPE

  4136. 

  4137. # make sure we can execute files in $TMPDIR

  4138. cat > $TMPSH 2>> $logfile <<EOF

  4139. #! /bin/sh

  4140. EOF

  4141. chmod +x $TMPSH >> $logfile 2>&1

  4142. if ! $TMPSH >> $logfile 2>&1; then

  4143.     cat <<EOF

  4144. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4145. variable to another directory and make sure that it is not mounted noexec.

  4146. EOF

  4147.     die "Sanity test failed."

  4148. fi

  4149. 

  4150. armasm_flags(){

  4151.     for flag; do

  4152.         case $flag in

  4153.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4154.             # be passed to gas-preprocessor

  4155.             -M[TD]*)                                            ;;

  4156.             *)                  echo $flag                      ;;

  4157.         esac

  4158.    done

  4159. }

  4160. 

  4161. cparser_flags(){

  4162.     for flag; do

  4163.         case $flag in

  4164.             -Wno-switch)             echo -Wno-switch-enum ;;

  4165.             -Wno-format-zero-length) ;;

  4166.             -Wdisabled-optimization) ;;

  4167.             -Wno-pointer-sign)       echo -Wno-other ;;

  4168.             *)                       echo $flag ;;

  4169.         esac

  4170.     done

  4171. }

  4172. 

  4173. msvc_common_flags(){

  4174.     for flag; do

  4175.         case $flag in

  4176.             # In addition to specifying certain flags under the compiler

  4177.             # specific filters, they must be specified here as well or else the

  4178.             # generic catch all at the bottom will print the original flag.

  4179.             -Wall)                ;;

  4180.             -Wextra)              ;;

  4181.             -std=c99)             ;;

  4182.             # Common flags

  4183.             -fomit-frame-pointer) ;;

  4184.             -g)                   echo -Z7 ;;

  4185.             -fno-math-errno)      ;;

  4186.             -fno-common)          ;;

  4187.             -fno-signed-zeros)    ;;

  4188.             -fPIC)                ;;

  4189.             -mthumb)              ;;

  4190.             -march=*)             ;;

  4191.             -lz)                  echo zlib.lib ;;

  4192.             -lx264)               echo libx264.lib ;;

  4193.             -lstdc++)             ;;

  4194.             -l*)                  echo ${flag#-l}.lib ;;

  4195.             -LARGEADDRESSAWARE)   echo $flag ;;

  4196.             -L*)                  echo -libpath:${flag#-L} ;;

  4197.             *)                    echo $flag ;;

  4198.         esac

  4199.     done

  4200. }

  4201. 

  4202. msvc_flags(){

  4203.     msvc_common_flags "$@"

  4204.     for flag; do

  4205.         case $flag in

  4206.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4207.                                        -wd4554 ;;

  4208.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4209.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4210.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4211.                                        -wd4307 \

  4212.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4213.         esac

  4214.     done

  4215. }

  4216. 

  4217. icl_flags(){

  4218.     msvc_common_flags "$@"

  4219.     for flag; do

  4220.         case $flag in

  4221.             # Despite what Intel's documentation says -Wall, which is supported

  4222.             # on Windows, does enable remarks so disable them here.

  4223.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4224.             -std=c99)             echo -Qstd=c99 ;;

  4225.             -flto)                echo -ipo ;;

  4226.         esac

  4227.     done

  4228. }

  4229. 

  4230. icc_flags(){

  4231.     for flag; do

  4232.         case $flag in

  4233.             -flto)                echo -ipo ;;

  4234.             *)                    echo $flag ;;

  4235.         esac

  4236.     done

  4237. }

  4238. 

  4239. suncc_flags(){

  4240.     for flag; do

  4241.         case $flag in

  4242.             -march=*|-mcpu=*)

  4243.                 case "${flag#*=}" in

  4244.                     native)                   echo -xtarget=native       ;;

  4245.                     v9|niagara)               echo -xarch=sparc          ;;

  4246.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4247.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4248.                     i586|pentium)             echo -xchip=pentium        ;;

  4249.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4250.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4251.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4252.                     pentium4*)          echo -xtarget=pentium4           ;;

  4253.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4254.                     *-sse3)             echo -xarch=sse3                 ;;

  4255.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4256.                     bonnell)                   echo -xarch=ssse3         ;;

  4257.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4258.                     westmere)                  echo -xtarget=westmere    ;;

  4259.                     silvermont)                echo -xarch=sse4_2        ;;

  4260.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4261.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4262.                                                echo -xarch=avx           ;;

  4263.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4264.                     btver1)                    echo -xarch=amdsse4a      ;;

  4265.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4266.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4267.                     k8|opteron|athlon64|athlon-fx)

  4268.                                                echo -xarch=sse2a         ;;

  4269.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4270.                 esac

  4271.                 ;;

  4272.             -std=c99)             echo -xc99              ;;

  4273.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4274.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4275.             -W*,*)                echo $flag              ;;

  4276.             -f*-*|-W*|-mimpure-text)                      ;;

  4277.             -shared)              echo -G                 ;;

  4278.             *)                    echo $flag              ;;

  4279.         esac

  4280.     done

  4281. }

  4282. 

  4283. probe_cc(){

  4284.     pfx=$1

  4285.     _cc=$2

  4286.     first=$3

  4287. 

  4288.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4289.     unset _ld_o _ldflags _ld_lib _ld_path

  4290.     unset _depflags _DEPCMD _DEPFLAGS

  4291.     _flags_filter=echo

  4292. 

  4293.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4294.         true # no-op to avoid reading stdin in following checks

  4295.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4296.         _type=llvm_gcc

  4297.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4298.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4299.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4300.         _cflags_speed='-O3'

  4301.         _cflags_size='-Os'

  4302.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4303.         _type=gcc

  4304.         gcc_version=$($_cc --version | head -n1)

  4305.         gcc_basever=$($_cc -dumpversion)

  4306.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4307.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4308.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4309.         case $gcc_basever in

  4310.             2) ;;

  4311.             2.*) ;;

  4312.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4313.         esac

  4314.         if [ "$first" = true ]; then

  4315.             case $gcc_basever in

  4316.                 4.2*)

  4317.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4318.             esac

  4319.         fi

  4320.         _cflags_speed='-O3'

  4321.         _cflags_size='-Os'

  4322.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4323.         _type=icc

  4324.         _ident=$($_cc --version | head -n1)

  4325.         _depflags='-MMD'

  4326.         _cflags_speed='-O3'

  4327.         _cflags_size='-Os'

  4328.         _cflags_noopt='-O1'

  4329.         _flags_filter=icc_flags

  4330.     elif $_cc -v 2>&1 | grep -q xlc; then

  4331.         _type=xlc

  4332.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4333.         _cflags_speed='-O5'

  4334.         _cflags_size='-O5 -qcompact'

  4335.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4336.         test -d "$sysroot" || die "No valid sysroot specified."

  4337.         _type=armcc

  4338.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4339.         armcc_conf="$PWD/armcc.conf"

  4340.         $_cc --arm_linux_configure                 \

  4341.              --arm_linux_config_file="$armcc_conf" \

  4342.              --configure_sysroot="$sysroot"        \

  4343.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4344.              die "Error creating armcc configuration file."

  4345.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4346.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4347.         as_default="${cross_prefix}gcc"

  4348.         _depflags='-MMD'

  4349.         _cflags_speed='-O3'

  4350.         _cflags_size='-Os'

  4351.     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then

  4352.         _type=clang

  4353.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4354.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4355.         _cflags_speed='-O3'

  4356.         _cflags_size='-Oz'

  4357.     elif $_cc -V 2>&1 | grep -q Sun; then

  4358.         _type=suncc

  4359.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4360.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4361.         _DEPFLAGS='-xM1 -xc99'

  4362.         _ldflags='-std=c99'

  4363.         _cflags_speed='-O5'

  4364.         _cflags_size='-O5 -xspace'

  4365.         _flags_filter=suncc_flags

  4366.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4367.         _type=pathscale

  4368.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4369.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4370.         _cflags_speed='-O2'

  4371.         _cflags_size='-Os'

  4372.         _flags_filter='filter_out -Wdisabled-optimization'

  4373.     elif $_cc -v 2>&1 | grep -q Open64; then

  4374.         _type=open64

  4375.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4376.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4377.         _cflags_speed='-O2'

  4378.         _cflags_size='-Os'

  4379.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4380.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4381.         _type=armasm

  4382.         _ident=$($_cc | head -n1)

  4383.         # 4509: "This form of conditional instruction is deprecated"

  4384.         _flags="-nologo -ignore 4509"

  4385.         _flags_filter=armasm_flags

  4386.     elif $_cc 2>&1 | grep -q Intel; then

  4387.         _type=icl

  4388.         _ident=$($_cc 2>&1 | head -n1)

  4389.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4390.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4391.         # versions (tested) as well.

  4392.         _cflags_speed="-O2"

  4393.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4394.         if $_cc 2>&1 | grep -q Linker; then

  4395.             _ld_o='-out:$@'

  4396.         else

  4397.             _ld_o='-Fe$@'

  4398.         fi

  4399.         _cc_o='-Fo$@'

  4400.         _cc_e='-P'

  4401.         _flags_filter=icl_flags

  4402.         _ld_lib='lib%.a'

  4403.         _ld_path='-libpath:'

  4404.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4405.         _flags='-nologo -Qdiag-error:4044,10157'

  4406.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4407.         # with MSVC which enables it by default.

  4408.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4409.         disable stripping

  4410.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4411.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4412.         # the -? parameter gives the help output which contains an identifyable

  4413.         # string, while it gives an error in other modes.

  4414.         _type=lld-link

  4415.         # The link.exe mode doesn't have a switch for getting the version,

  4416.         # but we can force it back to gnu mode and get the version from there.

  4417.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4418.         _ld_o='-out:$@'

  4419.         _flags_filter=msvc_flags

  4420.         _ld_lib='lib%.a'

  4421.         _ld_path='-libpath:'

  4422.     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then

  4423.         _type=msvc

  4424.         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')

  4425.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4426.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4427.         _cflags_speed="-O2"

  4428.         _cflags_size="-O1"

  4429.         _cflags_noopt="-O1"

  4430.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4431.             _ld_o='-out:$@'

  4432.         else

  4433.             _ld_o='-Fe$@'

  4434.         fi

  4435.         _cc_o='-Fo$@'

  4436.         _cc_e='-P -Fi$@'

  4437.         _flags_filter=msvc_flags

  4438.         _ld_lib='lib%.a'

  4439.         _ld_path='-libpath:'

  4440.         _flags='-nologo'

  4441.         disable stripping

  4442.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4443.         _type=cparser

  4444.         _ident=$($_cc --version | head -n1)

  4445.         _depflags='-MMD'

  4446.         _cflags_speed='-O4'

  4447.         _cflags_size='-O2'

  4448.         _flags_filter=cparser_flags

  4449.     fi

  4450. 

  4451.     eval ${pfx}_type=\$_type

  4452.     eval ${pfx}_ident=\$_ident

  4453. }

  4454. 

  4455. set_ccvars(){

  4456.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4457.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4458.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4459. 

  4460.     if [ -n "$_depflags" ]; then

  4461.         eval ${1}_DEPFLAGS=\$_depflags

  4462.     else

  4463.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4464.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4465.         eval DEP${1}FLAGS=\$_flags

  4466.     fi

  4467. }

  4468. 

  4469. probe_cc cc "$cc" "true"

  4470. cflags_filter=$_flags_filter

  4471. cflags_speed=$_cflags_speed

  4472. cflags_size=$_cflags_size

  4473. cflags_noopt=$_cflags_noopt

  4474. add_cflags $_flags $_cflags

  4475. cc_ldflags=$_ldflags

  4476. set_ccvars CC

  4477. set_ccvars CXX

  4478. 

  4479. probe_cc hostcc "$host_cc"

  4480. host_cflags_filter=$_flags_filter

  4481. host_cflags_speed=$_cflags_speed

  4482. add_host_cflags  $_flags $_cflags

  4483. set_ccvars HOSTCC

  4484. 

  4485. test -n "$cc_type" && enable $cc_type ||

  4486.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4487. 

  4488. : ${as_default:=$cc}

  4489. : ${objcc_default:=$cc}

  4490. : ${dep_cc_default:=$cc}

  4491. : ${ld_default:=$cc}

  4492. : ${host_ld_default:=$host_cc}

  4493. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4494. 

  4495. probe_cc as "$as"

  4496. asflags_filter=$_flags_filter

  4497. add_asflags $_flags $_cflags

  4498. set_ccvars AS

  4499. 

  4500. probe_cc objcc "$objcc"

  4501. objcflags_filter=$_flags_filter

  4502. add_objcflags $_flags $_cflags

  4503. set_ccvars OBJC

  4504. 

  4505. probe_cc ld "$ld"

  4506. ldflags_filter=$_flags_filter

  4507. add_ldflags $_flags $_ldflags

  4508. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4509. LD_O=${_ld_o-$LD_O}

  4510. LD_LIB=${_ld_lib-$LD_LIB}

  4511. LD_PATH=${_ld_path-$LD_PATH}

  4512. 

  4513. probe_cc hostld "$host_ld"

  4514. host_ldflags_filter=$_flags_filter

  4515. add_host_ldflags $_flags $_ldflags

  4516. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4517. 

  4518. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4519.     probe_cc depcc "$dep_cc"

  4520.     CCDEP=${_DEPCMD:-$DEPCMD}

  4521.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4522.     DEPCCFLAGS=$_flags

  4523. fi

  4524. 

  4525. if $ar 2>&1 | grep -q Microsoft; then

  4526.     arflags="-nologo"

  4527.     ar_o='-out:$@'

  4528. elif $ar 2>&1 | grep -q "\[D\] "; then

  4529.     arflags="rcD"

  4530.     ar_o='$@'

  4531. else

  4532.     arflags="rc"

  4533.     ar_o='$@'

  4534. fi

  4535. 

  4536. add_cflags $extra_cflags

  4537. add_cxxflags $extra_cxxflags

  4538. add_objcflags $extra_objcflags

  4539. add_asflags $extra_cflags

  4540. 

  4541. if test -n "$sysroot"; then

  4542.     case "$cc_type" in

  4543.         gcc|llvm_gcc|clang)

  4544.             add_cppflags --sysroot="$sysroot"

  4545.             add_ldflags --sysroot="$sysroot"

  4546.         ;;

  4547.     esac

  4548. fi

  4549. 

  4550. if test "$cpu" = host; then

  4551.     enabled cross_compile &&

  4552.         die "--cpu=host makes no sense when cross-compiling."

  4553. 

  4554.     case "$cc_type" in

  4555.         gcc|llvm_gcc)

  4556.             check_native(){

  4557.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4558.                 sed -n "/cc1.*$1=/{

  4559.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4560.                             p

  4561.                             q

  4562.                         }" $TMPE

  4563.             }

  4564.             cpu=$(check_native -march || check_native -mcpu)

  4565.         ;;

  4566.         clang)

  4567.             check_native(){

  4568.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4569.                 sed -n "/cc1.*-target-cpu /{

  4570.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4571.                             p

  4572.                             q

  4573.                         }" $TMPE

  4574.             }

  4575.             cpu=$(check_native -march)

  4576.         ;;

  4577.     esac

  4578. 

  4579.     test "${cpu:-host}" = host &&

  4580.         die "--cpu=host not supported with compiler $cc"

  4581. fi

  4582. 

  4583. # Deal with common $arch aliases

  4584. case "$arch" in

  4585.     aarch64|arm64)

  4586.         arch="aarch64"

  4587.     ;;

  4588.     arm*|iPad*|iPhone*)

  4589.         arch="arm"

  4590.     ;;

  4591.     mips*|IP*)

  4592.         case "$arch" in

  4593.         *el)

  4594.             add_cppflags -EL

  4595.             add_ldflags -EL

  4596.         ;;

  4597.         *eb)

  4598.             add_cppflags -EB

  4599.             add_ldflags -EB

  4600.         ;;

  4601.         esac

  4602.         arch="mips"

  4603.     ;;

  4604.     parisc*|hppa*)

  4605.         arch="parisc"

  4606.     ;;

  4607.     "Power Macintosh"|ppc*|powerpc*)

  4608.         arch="ppc"

  4609.     ;;

  4610.     s390|s390x)

  4611.         arch="s390"

  4612.     ;;

  4613.     sh4|sh)

  4614.         arch="sh4"

  4615.     ;;

  4616.     sun4*|sparc*)

  4617.         arch="sparc"

  4618.     ;;

  4619.     tilegx|tile-gx)

  4620.         arch="tilegx"

  4621.     ;;

  4622.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4623.         arch="x86"

  4624.     ;;

  4625. esac

  4626. 

  4627. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4628. enable $arch

  4629. 

  4630. # Add processor-specific flags

  4631. if enabled aarch64; then

  4632. 

  4633.     case $cpu in

  4634.         armv*)

  4635.             cpuflags="-march=$cpu"

  4636.         ;;

  4637.         *)

  4638.             cpuflags="-mcpu=$cpu"

  4639.         ;;

  4640.     esac

  4641. 

  4642. elif enabled alpha; then

  4643. 

  4644.     cpuflags="-mcpu=$cpu"

  4645. 

  4646. elif enabled arm; then

  4647. 

  4648.     check_arm_arch() {

  4649.         test_cpp_condition stddef.h \

  4650.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4651.             $cpuflags

  4652.     }

  4653. 

  4654.     probe_arm_arch() {

  4655.         if   check_arm_arch 4;        then echo armv4

  4656.         elif check_arm_arch 4T;       then echo armv4t

  4657.         elif check_arm_arch 5;        then echo armv5

  4658.         elif check_arm_arch 5E;       then echo armv5e

  4659.         elif check_arm_arch 5T;       then echo armv5t

  4660.         elif check_arm_arch 5TE;      then echo armv5te

  4661.         elif check_arm_arch 5TEJ;     then echo armv5te

  4662.         elif check_arm_arch 6;        then echo armv6

  4663.         elif check_arm_arch 6J;       then echo armv6j

  4664.         elif check_arm_arch 6K;       then echo armv6k

  4665.         elif check_arm_arch 6Z;       then echo armv6z

  4666.         elif check_arm_arch 6KZ;      then echo armv6zk

  4667.         elif check_arm_arch 6ZK;      then echo armv6zk

  4668.         elif check_arm_arch 6T2;      then echo armv6t2

  4669.         elif check_arm_arch 7;        then echo armv7

  4670.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4671.         elif check_arm_arch 7S;       then echo armv7-a

  4672.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4673.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4674.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4675.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4676.         fi

  4677.     }

  4678. 

  4679.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4680. 

  4681.     case $cpu in

  4682.         armv*)

  4683.             cpuflags="-march=$cpu"

  4684.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4685.         ;;

  4686.         *)

  4687.             cpuflags="-mcpu=$cpu"

  4688.             case $cpu in

  4689.                 cortex-a*)                               subarch=armv7a  ;;

  4690.                 cortex-r*)                               subarch=armv7r  ;;

  4691.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4692.                 arm11*)                                  subarch=armv6   ;;

  4693.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4694.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4695.                 *)                             subarch=$(probe_arm_arch) ;;

  4696.             esac

  4697.         ;;

  4698.     esac

  4699. 

  4700.     case "$subarch" in

  4701.         armv5t*)    enable fast_clz                ;;

  4702.         armv[6-8]*)

  4703.             enable fast_clz

  4704.             disabled fast_unaligned || enable fast_unaligned

  4705.             ;;

  4706.     esac

  4707. 

  4708. elif enabled avr32; then

  4709. 

  4710.     case $cpu in

  4711.         ap7[02]0[0-2])

  4712.             subarch="avr32_ap"

  4713.             cpuflags="-mpart=$cpu"

  4714.         ;;

  4715.         ap)

  4716.             subarch="avr32_ap"

  4717.             cpuflags="-march=$cpu"

  4718.         ;;

  4719.         uc3[ab]*)

  4720.             subarch="avr32_uc"

  4721.             cpuflags="-mcpu=$cpu"

  4722.         ;;

  4723.         uc)

  4724.             subarch="avr32_uc"

  4725.             cpuflags="-march=$cpu"

  4726.         ;;

  4727.     esac

  4728. 

  4729. elif enabled bfin; then

  4730. 

  4731.     cpuflags="-mcpu=$cpu"

  4732. 

  4733. elif enabled mips; then

  4734. 

  4735.     cpuflags="-march=$cpu"

  4736. 

  4737.     if [ "$cpu" != "generic" ]; then

  4738.         disable mips32r2

  4739.         disable mips32r5

  4740.         disable mips64r2

  4741.         disable mips32r6

  4742.         disable mips64r6

  4743.         disable loongson2

  4744.         disable loongson3

  4745. 

  4746.         case $cpu in

  4747.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4748.                 enable mips32r2

  4749.                 disable msa

  4750.             ;;

  4751.             p5600|i6400|p6600)

  4752.                 disable mipsdsp

  4753.                 disable mipsdspr2

  4754.             ;;

  4755.             loongson*)

  4756.                 enable loongson2

  4757.                 enable loongson3

  4758.                 enable local_aligned

  4759.                 enable simd_align_16

  4760.                 enable fast_64bit

  4761.                 enable fast_clz

  4762.                 enable fast_cmov

  4763.                 enable fast_unaligned

  4764.                 disable aligned_stack

  4765.                 disable mipsfpu

  4766.                 disable mipsdsp

  4767.                 disable mipsdspr2

  4768.                 case $cpu in

  4769.                     loongson3*)

  4770.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4771.                     ;;

  4772.                     loongson2e)

  4773.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4774.                     ;;

  4775.                     loongson2f)

  4776.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4777.                     ;;

  4778.                 esac

  4779.             ;;

  4780.             *)

  4781.                 # Unknown CPU. Disable everything.

  4782.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4783.                 disable mipsfpu

  4784.                 disable mipsdsp

  4785.                 disable mipsdspr2

  4786.                 disable msa

  4787.                 disable mmi

  4788.             ;;

  4789.         esac

  4790. 

  4791.         case $cpu in

  4792.             24kc)

  4793.                 disable mipsfpu

  4794.                 disable mipsdsp

  4795.                 disable mipsdspr2

  4796.             ;;

  4797.             24kf*)

  4798.                 disable mipsdsp

  4799.                 disable mipsdspr2

  4800.             ;;

  4801.             24kec|34kc|1004kc)

  4802.                 disable mipsfpu

  4803.                 disable mipsdspr2

  4804.             ;;

  4805.             24kef*|34kf*|1004kf*)

  4806.                 disable mipsdspr2

  4807.             ;;

  4808.             74kc)

  4809.                 disable mipsfpu

  4810.             ;;

  4811.             p5600)

  4812.                 enable mips32r5

  4813.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4814.             ;;

  4815.             i6400)

  4816.                 enable mips64r6

  4817.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4818.             ;;

  4819.             p6600)

  4820.                 enable mips64r6

  4821.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4822.             ;;

  4823.         esac

  4824.     else

  4825.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4826.         warn 'generic cpu selected'

  4827.     fi

  4828. 

  4829. elif enabled ppc; then

  4830. 

  4831.     disable ldbrx

  4832. 

  4833.     case $(tolower $cpu) in

  4834.         601|ppc601|powerpc601)

  4835.             cpuflags="-mcpu=601"

  4836.             disable altivec

  4837.         ;;

  4838.         603*|ppc603*|powerpc603*)

  4839.             cpuflags="-mcpu=603"

  4840.             disable altivec

  4841.         ;;

  4842.         604*|ppc604*|powerpc604*)

  4843.             cpuflags="-mcpu=604"

  4844.             disable altivec

  4845.         ;;

  4846.         g3|75*|ppc75*|powerpc75*)

  4847.             cpuflags="-mcpu=750"

  4848.             disable altivec

  4849.         ;;

  4850.         g4|745*|ppc745*|powerpc745*)

  4851.             cpuflags="-mcpu=7450"

  4852.             disable vsx

  4853.         ;;

  4854.         74*|ppc74*|powerpc74*)

  4855.             cpuflags="-mcpu=7400"

  4856.             disable vsx

  4857.         ;;

  4858.         g5|970|ppc970|powerpc970)

  4859.             cpuflags="-mcpu=970"

  4860.             disable vsx

  4861.         ;;

  4862.         power[3-6]*)

  4863.             cpuflags="-mcpu=$cpu"

  4864.             disable vsx

  4865.         ;;

  4866.         power[7-8]*)

  4867.             cpuflags="-mcpu=$cpu"

  4868.         ;;

  4869.         cell)

  4870.             cpuflags="-mcpu=cell"

  4871.             enable ldbrx

  4872.             disable vsx

  4873.         ;;

  4874.         e500mc)

  4875.             cpuflags="-mcpu=e500mc"

  4876.             disable altivec

  4877.         ;;

  4878.         e500v2)

  4879.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4880.             disable altivec

  4881.             disable dcbzl

  4882.         ;;

  4883.         e500)

  4884.             cpuflags="-mcpu=8540 -mhard-float"

  4885.             disable altivec

  4886.             disable dcbzl

  4887.         ;;

  4888.     esac

  4889. 

  4890. elif enabled sparc; then

  4891. 

  4892.     case $cpu in

  4893.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4894.             cpuflags="-mcpu=$cpu"

  4895.         ;;

  4896.         ultrasparc*|niagara[234])

  4897.             cpuflags="-mcpu=$cpu"

  4898.         ;;

  4899.     esac

  4900. 

  4901. elif enabled x86; then

  4902. 

  4903.     case $cpu in

  4904.         i[345]86|pentium)

  4905.             cpuflags="-march=$cpu"

  4906.             disable i686

  4907.             disable mmx

  4908.         ;;

  4909.         # targets that do NOT support nopl and conditional mov (cmov)

  4910.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4911.             cpuflags="-march=$cpu"

  4912.             disable i686

  4913.         ;;

  4914.         # targets that do support nopl and conditional mov (cmov)

  4915.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4916.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4917.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4918.             cpuflags="-march=$cpu"

  4919.             enable i686

  4920.             enable fast_cmov

  4921.         ;;

  4922.         # targets that do support conditional mov but on which it's slow

  4923.         pentium4|pentium4m|prescott|nocona)

  4924.             cpuflags="-march=$cpu"

  4925.             enable i686

  4926.             disable fast_cmov

  4927.         ;;

  4928.     esac

  4929. 

  4930. fi

  4931. 

  4932. if [ "$cpu" != generic ]; then

  4933.     add_cflags  $cpuflags

  4934.     add_asflags $cpuflags

  4935.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4936. fi

  4937. 

  4938. # compiler sanity check

  4939. test_exec <<EOF

  4940. int main(void){ return 0; }

  4941. EOF

  4942. if test "$?" != 0; then

  4943.     echo "$cc is unable to create an executable file."

  4944.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4945.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4946.         echo "Only do this if you know what cross compiling means."

  4947.     fi

  4948.     die "C compiler test failed."

  4949. fi

  4950. 

  4951. add_cppflags -D_ISOC99_SOURCE

  4952. add_cxxflags -D__STDC_CONSTANT_MACROS

  4953. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4954. 

  4955. # some compilers silently accept -std=c11, so we also need to check that the

  4956. # version macro is defined properly

  4957. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4958.     add_cflags -std=c11 ||

  4959.     check_cflags -std=c99

  4960. 

  4961. check_cppflags -D_FILE_OFFSET_BITS=64

  4962. check_cppflags -D_LARGEFILE_SOURCE

  4963. 

  4964. add_host_cppflags -D_ISOC99_SOURCE

  4965. check_host_cflags -std=c99

  4966. check_host_cflags -Wall

  4967. check_host_cflags $host_cflags_speed

  4968. 

  4969. check_64bit(){

  4970.     arch32=$1

  4971.     arch64=$2

  4972.     expr=${3:-'sizeof(void *) > 4'}

  4973.     test_code cc "" "int test[2*($expr) - 1]" &&

  4974.         subarch=$arch64 || subarch=$arch32

  4975.     enable $subarch

  4976. }

  4977. 

  4978. case "$arch" in

  4979.     aarch64|alpha|ia64)

  4980.         enabled shared && enable_weak pic

  4981.     ;;

  4982.     mips)

  4983.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4984.         enabled shared && enable_weak pic

  4985.     ;;

  4986.     parisc)

  4987.         check_64bit parisc parisc64

  4988.         enabled shared && enable_weak pic

  4989.     ;;

  4990.     ppc)

  4991.         check_64bit ppc ppc64

  4992.         enabled shared && enable_weak pic

  4993.     ;;

  4994.     s390)

  4995.         check_64bit s390 s390x

  4996.         enabled shared && enable_weak pic

  4997.     ;;

  4998.     sparc)

  4999.         check_64bit sparc sparc64

  5000.         enabled shared && enable_weak pic

  5001.     ;;

  5002.     x86)

  5003.         check_64bit x86_32 x86_64

  5004.         # Treat x32 as x64 for now. Note it also needs pic if shared

  5005.         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&

  5006.             subarch=x86_64 && enable x86_64 && disable x86_32

  5007.         if enabled x86_64; then

  5008.             enabled shared && enable_weak pic

  5009.             objformat=elf64

  5010.         fi

  5011.     ;;

  5012. esac

  5013. 

  5014. # OS specific

  5015. case $target_os in

  5016.     aix)

  5017.         SHFLAGS=-shared

  5018.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  5019.         enabled shared && add_ldflags -Wl,-brtl

  5020.         arflags='-Xany -r -c'

  5021.         striptype=""

  5022.         ;;

  5023.     android)

  5024.         disable symver

  5025.         enable section_data_rel_ro

  5026.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  5027.         SLIB_INSTALL_LINKS=

  5028.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  5029.         ;;

  5030.     haiku)

  5031.         prefix_default="/boot/common"

  5032.         network_extralibs="-lnetwork"

  5033.         host_extralibs=

  5034.         ;;

  5035.     sunos)

  5036.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  5037.         enabled x86 && append SHFLAGS -mimpure-text

  5038.         network_extralibs="-lsocket -lnsl"

  5039.         add_cppflags -D__EXTENSIONS__

  5040.         # When using suncc to build, the Solaris linker will mark

  5041.         # an executable with each instruction set encountered by

  5042.         # the Solaris assembler.  As our libraries contain their own

  5043.         # guards for processor-specific code, instead suppress

  5044.         # generation of the HWCAPS ELF section on Solaris x86 only.

  5045.         enabled_all suncc x86 &&

  5046.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  5047.             add_ldflags -Wl,-M,mapfile

  5048.         nm_default='nm -P -g'

  5049.         version_script='-M'

  5050.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  5051.         ;;

  5052.     netbsd)

  5053.         disable symver

  5054.         oss_indev_extralibs="-lossaudio"

  5055.         oss_outdev_extralibs="-lossaudio"

  5056.         enabled gcc || check_ldflags -Wl,-zmuldefs

  5057.         ;;

  5058.     openbsd|bitrig)

  5059.         disable symver

  5060.         striptype=""

  5061.         SHFLAGS='-shared'

  5062.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  5063.         SLIB_INSTALL_LINKS=

  5064.         oss_indev_extralibs="-lossaudio"

  5065.         oss_outdev_extralibs="-lossaudio"

  5066.         ;;

  5067.     dragonfly)

  5068.         disable symver

  5069.         ;;

  5070.     freebsd)

  5071.         ;;

  5072.     bsd/os)

  5073.         add_extralibs -lpoll -lgnugetopt

  5074.         strip="strip -d"

  5075.         ;;

  5076.     darwin)

  5077.         enabled ppc && add_asflags -force_cpusubtype_ALL

  5078.         install_name_dir_default='$(SHLIBDIR)'

  5079.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  5080.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  5081.         strip="${strip} -x"

  5082.         add_ldflags -Wl,-dynamic,-search_paths_first

  5083.         check_cflags -Werror=partial-availability

  5084.         SLIBSUF=".dylib"

  5085.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  5086.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  5087.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  5088.         enabled_any pic shared x86_64 ||

  5089.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  5090.         check_header dispatch/dispatch.h &&

  5091.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  5092.         if test -n "$sysroot"; then

  5093.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  5094.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  5095.         fi

  5096.         version_script='-exported_symbols_list'

  5097.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  5098.         ;;

  5099.     msys*)

  5100.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  5101.         ;;

  5102.     mingw32*|mingw64*)

  5103.         target_os=mingw32

  5104.         LIBTARGET=i386

  5105.         if enabled x86_64; then

  5106.             LIBTARGET="i386:x86-64"

  5107.         elif enabled arm; then

  5108.             LIBTARGET="arm"

  5109.         elif enabled aarch64; then

  5110.             LIBTARGET="arm64"

  5111.         fi

  5112.         if enabled shared; then

  5113.             # Cannot build both shared and static libs when using dllimport.

  5114.             disable static

  5115.         fi

  5116.         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres

  5117.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  5118.         shlibdir_default="$bindir_default"

  5119.         SLIBPREF=""

  5120.         SLIBSUF=".dll"

  5121.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5122.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5123.         if test_cmd lib.exe -list; then

  5124.             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5125.             if enabled x86_64; then

  5126.                 LIBTARGET=x64

  5127.             fi

  5128.         else

  5129.             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'

  5130.         fi

  5131.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5132.         SLIB_INSTALL_LINKS=

  5133.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5134.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5135.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5136.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  5137.         enabled x86_64 && objformat="win64" || objformat="win32"

  5138.         dlltool="${cross_prefix}dlltool"

  5139.         ranlib=:

  5140.         enable dos_paths

  5141.         check_ldflags -Wl,--nxcompat,--dynamicbase

  5142.         # Lets work around some stupidity in binutils.

  5143.         # ld will strip relocations from executables even though we need them

  5144.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  5145.         # however ld then forgets what the entry point should be (oops) so we

  5146.         # have to manually (re)set it.

  5147.         if enabled x86_32; then

  5148.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  5149.         elif enabled x86_64; then

  5150.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5151.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5152.             # Set image base >4GB for extra entropy with HEASLR

  5153.             add_ldexeflags -Wl,--image-base,0x140000000

  5154.             append SHFLAGS -Wl,--image-base,0x180000000

  5155.         fi

  5156.         ;;

  5157.     win32|win64)

  5158.         disable symver

  5159.         if enabled shared; then

  5160.             # Link to the import library instead of the normal static library

  5161.             # for shared libs.

  5162.             LD_LIB='%.lib'

  5163.             # Cannot build both shared and static libs with MSVC or icl.

  5164.             disable static

  5165.         fi

  5166.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5167.         shlibdir_default="$bindir_default"

  5168.         SLIBPREF=""

  5169.         SLIBSUF=".dll"

  5170.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5171.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5172.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5173.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5174.         SLIB_INSTALL_LINKS=

  5175.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5176.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5177.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5178.         enabled x86_64 && objformat="win64" || objformat="win32"

  5179.         ranlib=:

  5180.         enable dos_paths

  5181.         ;;

  5182.     cygwin*)

  5183.         target_os=cygwin

  5184.         shlibdir_default="$bindir_default"

  5185.         SLIBPREF="cyg"

  5186.         SLIBSUF=".dll"

  5187.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5188.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5189.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5190.         SLIB_INSTALL_LINKS=

  5191.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5192.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5193.         enabled x86_64 && objformat="win64" || objformat="win32"

  5194.         enable dos_paths

  5195.         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres

  5196.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5197.         ;;

  5198.     *-dos|freedos|opendos)

  5199.         network_extralibs="-lsocket"

  5200.         objformat="coff"

  5201.         enable dos_paths

  5202.         add_cppflags -U__STRICT_ANSI__

  5203.         ;;

  5204.     linux)

  5205.         enable section_data_rel_ro

  5206.         enabled_any arm aarch64 && enable_weak linux_perf

  5207.         ;;

  5208.     irix*)

  5209.         target_os=irix

  5210.         ranlib="echo ignoring ranlib"

  5211.         ;;

  5212.     os/2*)

  5213.         strip="lxlite -CS"

  5214.         striptype=""

  5215.         objformat="aout"

  5216.         add_cppflags -D_GNU_SOURCE

  5217.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5218.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5219.         LIBSUF="_s.a"

  5220.         SLIBPREF=""

  5221.         SLIBSUF=".dll"

  5222.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5223.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5224.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5225.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5226.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5227.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5228.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5229.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5230.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5231.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5232.         SLIB_INSTALL_LINKS=

  5233.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5234.         enable dos_paths

  5235.         enable_weak os2threads

  5236.         ;;

  5237.     gnu/kfreebsd)

  5238.         add_cppflags -D_BSD_SOURCE

  5239.         ;;

  5240.     gnu)

  5241.         ;;

  5242.     qnx)

  5243.         add_cppflags -D_QNX_SOURCE

  5244.         network_extralibs="-lsocket"

  5245.         ;;

  5246.     symbian)

  5247.         SLIBSUF=".dll"

  5248.         enable dos_paths

  5249.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5250.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5251.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5252.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5253.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5254.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5255.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5256.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5257.         ;;

  5258.     minix)

  5259.         ;;

  5260.     none)

  5261.         ;;

  5262.     *)

  5263.         die "Unknown OS '$target_os'."

  5264.         ;;

  5265. esac

  5266. 

  5267. # test if creating links works

  5268. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5269. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5270. mkdir "$link_dest"

  5271. $ln_s "$link_dest" "$link_name"

  5272. touch "$link_dest/test_file"

  5273. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5274.     # create link to source path

  5275.     [ -e src ] && rm src

  5276.     $ln_s "$source_path" src

  5277.     source_link=src

  5278. else

  5279.     # creating directory links doesn't work

  5280.     # fall back to using the full source path

  5281.     source_link="$source_path"

  5282. fi

  5283. # cleanup

  5284. rm -r "$link_dest"

  5285. rm -r "$link_name"

  5286. 

  5287. # determine libc flavour

  5288. 

  5289. probe_libc(){

  5290.     pfx=$1

  5291.     pfx_no_=${pfx%_}

  5292.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5293.     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5294.         eval ${pfx}libc_type=uclibc

  5295.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5296.     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5297.         eval ${pfx}libc_type=glibc

  5298.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5299.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5300.     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5301.         eval ${pfx}libc_type=newlib

  5302.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5303.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5304.     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5305.         eval ${pfx}libc_type=mingw64

  5306.         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5307.             add_compat msvcrt/snprintf.o

  5308.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5309.         fi

  5310.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5311.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5312.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5313.         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5314.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5315.     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5316.          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5317.         eval ${pfx}libc_type=mingw32

  5318.         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5319.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5320.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5321.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5322.         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5323.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5324.         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5325.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5326.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5327.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5328.     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5329.         eval ${pfx}libc_type=msvcrt

  5330.         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5331.             if [ "$pfx" = host_ ]; then

  5332.                 add_host_cppflags -Dsnprintf=_snprintf

  5333.             else

  5334.                 add_compat strtod.o strtod=avpriv_strtod

  5335.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5336.                                              _snprintf=avpriv_snprintf  \

  5337.                                              vsnprintf=avpriv_vsnprintf

  5338.             fi

  5339.         fi

  5340.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5341.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5342.         # 0x601 by default unless something else is set by the user.

  5343.         # This can easily lead to us detecting functions only present

  5344.         # in such new versions and producing binaries requiring windows 7.0.

  5345.         # Therefore explicitly set the default to Vista unless the user has

  5346.         # set something else on the command line.

  5347.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5348.         # family. For these cases, configure is free to use any functions

  5349.         # found in the SDK headers by default. (Alternatively, we could force

  5350.         # _WIN32_WINNT to 0x0602 in that case.)

  5351.         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5352.             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }

  5353. #ifdef WINAPI_FAMILY

  5354. #include <winapifamily.h>

  5355. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5356. #error not desktop

  5357. #endif

  5358. #endif

  5359. EOF

  5360.         if [ "$pfx" = "" ]; then

  5361.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5362.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5363.         fi

  5364.     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5365.         eval ${pfx}libc_type=klibc

  5366.     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5367.         eval ${pfx}libc_type=bionic

  5368.     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5369.         eval ${pfx}libc_type=solaris

  5370.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5371.     fi

  5372.     test_${pfx}cc <<EOF

  5373. #include <time.h>

  5374. void *v = localtime_r;

  5375. EOF

  5376. test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5377. #include <time.h>

  5378. void *v = localtime_r;

  5379. EOF

  5380. 

  5381.     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}

  5382. }

  5383. 

  5384. probe_libc

  5385. probe_libc host_

  5386. 

  5387. # hacks for compiler/libc/os combinations

  5388. 

  5389. case $libc_type in

  5390.     bionic)

  5391.         add_compat strtod.o strtod=avpriv_strtod

  5392.         ;;

  5393. esac

  5394. 

  5395. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5396.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5397. 

  5398. test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5399. 

  5400. set_default libdir

  5401. : ${shlibdir_default:="$libdir"}

  5402. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5403. 

  5404. set_default $PATHS_LIST

  5405. set_default nm

  5406. 

  5407. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5408. 

  5409. enable_weak_pic() {

  5410.     disabled pic && return

  5411.     enable pic

  5412.     add_cppflags -DPIC

  5413.     case "$target_os" in

  5414.     mingw*|cygwin*|win*)

  5415.         ;;

  5416.     *)

  5417.         add_cflags -fPIC

  5418.         add_asflags -fPIC

  5419.         ;;

  5420.     esac

  5421. }

  5422. 

  5423. enabled pic && enable_weak_pic

  5424. 

  5425. test_cc <<EOF || die "Symbol mangling check failed."

  5426. int ff_extern;

  5427. EOF

  5428. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5429. extern_prefix=${sym%%ff_extern*}

  5430. 

  5431. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5432. 

  5433. for restrict_keyword in restrict __restrict__ __restrict ""; do

  5434.     test_code cc "" "char * $restrict_keyword p" && break

  5435. done

  5436. 

  5437. check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'

  5438. 

  5439. # The global variable ensures the bits appear unchanged in the object file.

  5440. test_cc <<EOF || die "endian test failed"

  5441. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5442. EOF

  5443. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5444. 

  5445. check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"

  5446. 

  5447. if ! enabled ppc64 || enabled bigendian; then

  5448.     disable vsx

  5449. fi

  5450. 

  5451. check_gas() {

  5452.     log "check_gas using '$as' as AS"

  5453.     # :vararg is used on aarch64, arm and ppc altivec

  5454.     check_as vararg "

  5455. .macro m n, y:vararg=0

  5456. \n: .int \y

  5457. .endm

  5458. m x" || return 1

  5459.     # .altmacro is only used in arm asm

  5460.     ! enabled arm || check_as gnu_as ".altmacro"

  5461. }

  5462. 

  5463. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5464.     nogas=:

  5465.     enabled_any arm aarch64 && nogas=die

  5466.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5467.     as_noop=-v

  5468. 

  5469.     case $as_type in

  5470.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5471.         gcc)  gaspp_as_type=gas ;;

  5472.         *)    gaspp_as_type=$as_type ;;

  5473.     esac

  5474. 

  5475.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5476. 

  5477.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5478.     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5479.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5480. 

  5481.     if ! check_gas ; then

  5482.         as=${gas:=$as}

  5483.         check_gas || \

  5484.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5485.     fi

  5486. 

  5487.     check_as as_func ".func test

  5488.                       .endfunc"

  5489. fi

  5490. 

  5491. check_inline_asm inline_asm_labels '"1:\n"'

  5492. 

  5493. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5494. 

  5495. if enabled aarch64; then

  5496.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5497.     # internal assembler in clang 3.3 does not support this instruction

  5498.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5499.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5500. 

  5501.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5502. 

  5503. elif enabled alpha; then

  5504. 

  5505.     check_cflags -mieee

  5506. 

  5507. elif enabled arm; then

  5508. 

  5509.     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"

  5510.     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb

  5511. float func(float a, float b){ return a+b; }

  5512. EOF

  5513.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5514. 

  5515.     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then

  5516.         :

  5517.     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5518.         :

  5519.     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5520.         case "${cross_prefix:-$cc}" in

  5521.             *hardfloat*) enable vfp_args; fpabi=vfp ;;

  5522.             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;

  5523. __asm__ (".eabi_attribute 28, 1");

  5524. int main(void) { return 0; }

  5525. EOF

  5526.         esac

  5527.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5528.     fi

  5529. 

  5530.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5531.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5532.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5533.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5534.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5535.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5536.     enabled setend  && check_insn setend  'setend be'

  5537. 

  5538.     [ $target_os = linux ] || [ $target_os = android ] ||

  5539.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5540.             $ARCH_EXT_LIST_ARM

  5541. 

  5542.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5543. 

  5544.     check_as as_arch_directive ".arch armv7-a"

  5545.     check_as as_dn_directive   "ra .dn d0.i16"

  5546.     check_as as_fpu_directive  ".fpu neon"

  5547. 

  5548.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5549.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5550.         check_as as_object_arch ".object_arch armv4"

  5551. 

  5552.     # MS armasm fails to assemble our PIC constructs

  5553.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5554. 

  5555. elif enabled mips; then

  5556. 

  5557.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5558.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5559.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5560. 

  5561.     # Enable minimum ISA based on selected options

  5562.     if enabled mips64; then

  5563.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5564.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5565.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5566.     else

  5567.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5568.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5569.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5570.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5571.     fi

  5572. 

  5573.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5574.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5575.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5576.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5577.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5578. 

  5579.     if enabled bigendian && enabled msa; then

  5580.         disable msa

  5581.     fi

  5582. 

  5583. elif enabled parisc; then

  5584. 

  5585.     if enabled gcc; then

  5586.         case $($cc -dumpversion) in

  5587.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5588.         esac

  5589.     fi

  5590. 

  5591. elif enabled ppc; then

  5592. 

  5593.     enable local_aligned

  5594. 

  5595.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5596.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5597.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5598.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5599. 

  5600.     if enabled altivec; then

  5601.         check_cflags -maltivec -mabi=altivec

  5602. 

  5603.         # check if our compiler supports Motorola AltiVec C API

  5604.         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };

  5605.                                     vector signed int v2 = (vector signed int) { 1 };

  5606.                                     v1 = vec_add(v1, v2);"

  5607. 

  5608.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5609.     fi

  5610. 

  5611.     if enabled vsx; then

  5612.         check_cflags -mvsx &&

  5613.         check_cc vsx altivec.h "int v[4] = { 0 };

  5614.                                 vector signed int v1 = vec_vsx_ld(0, v);"

  5615.     fi

  5616. 

  5617.     if enabled power8; then

  5618.         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"

  5619.     fi

  5620. 

  5621. elif enabled x86; then

  5622. 

  5623.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5624.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5625. 

  5626.     enable local_aligned

  5627. 

  5628.     # check whether EBP is available on x86

  5629.     # As 'i' is stored on the stack, this program will crash

  5630.     # if the base pointer is used to access it because the

  5631.     # base pointer is cleared in the inline assembly code.

  5632.     check_exec_crash <<EOF && enable ebp_available

  5633. volatile int i=0;

  5634. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5635. return i;

  5636. EOF

  5637. 

  5638.     # check whether EBX is available on x86

  5639.     check_inline_asm ebx_available '""::"b"(0)' &&

  5640.         check_inline_asm ebx_available '"":::"%ebx"'

  5641. 

  5642.     # check whether xmm clobbers are supported

  5643.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5644. 

  5645.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5646.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5647. 

  5648.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5649.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5650.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5651. 

  5652.     probe_x86asm(){

  5653.         x86asmexe_probe=$1

  5654.         if test_cmd $x86asmexe_probe -v; then

  5655.             x86asmexe=$x86asmexe_probe

  5656.             x86asm_type=nasm

  5657.             x86asm_debug="-g -F dwarf"

  5658.             X86ASMDEP=

  5659.             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5660.         elif test_cmd $x86asmexe_probe --version; then

  5661.             x86asmexe=$x86asmexe_probe

  5662.             x86asm_type=yasm

  5663.             x86asm_debug="-g dwarf2"

  5664.             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5665.             X86ASM_DEPFLAGS=

  5666.         fi

  5667.         check_x86asm x86asm "movbe ecx, [5]"

  5668.     }

  5669. 

  5670.     if ! disabled_any asm mmx x86asm; then

  5671.         disable x86asm

  5672.         for program in $x86asmexe nasm yasm; do

  5673.             probe_x86asm $program && break

  5674.         done

  5675.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5676.         X86ASMFLAGS="-f $objformat"

  5677.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5678.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5679.         case "$objformat" in

  5680.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5681.         esac

  5682. 

  5683.         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"

  5684.         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"

  5685.         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"

  5686.         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"

  5687.         check_x86asm cpunop          "CPU amdnop"

  5688.     fi

  5689. 

  5690.     case "$cpu" in

  5691.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5692.             disable fast_clz

  5693.         ;;

  5694.     esac

  5695. 

  5696. fi

  5697. 

  5698. check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"

  5699. 

  5700. check_ldflags -Wl,--as-needed

  5701. check_ldflags -Wl,-z,noexecstack

  5702. 

  5703. if ! disabled network; then

  5704.     check_func getaddrinfo $network_extralibs

  5705.     check_func inet_aton $network_extralibs

  5706. 

  5707.     check_type netdb.h "struct addrinfo"

  5708.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5709.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5710.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5711.     check_type poll.h "struct pollfd"

  5712.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5713.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5714.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5715.     check_type netinet/in.h "struct sockaddr_in6"

  5716.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5717.     check_type "sys/types.h sys/socket.h" socklen_t

  5718. 

  5719.     # Prefer arpa/inet.h over winsock2

  5720.     if check_header arpa/inet.h ; then

  5721.         check_func closesocket

  5722.     elif check_header winsock2.h ; then

  5723.         check_func_headers winsock2.h closesocket -lws2 &&

  5724.             network_extralibs="-lws2" ||

  5725.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5726.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5727.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5728. 

  5729.         check_type ws2tcpip.h socklen_t

  5730.         check_type ws2tcpip.h "struct addrinfo"

  5731.         check_type ws2tcpip.h "struct group_source_req"

  5732.         check_type ws2tcpip.h "struct ip_mreq_source"

  5733.         check_type ws2tcpip.h "struct ipv6_mreq"

  5734.         check_type winsock2.h "struct pollfd"

  5735.         check_struct winsock2.h "struct sockaddr" sa_len

  5736.         check_type ws2tcpip.h "struct sockaddr_in6"

  5737.         check_type ws2tcpip.h "struct sockaddr_storage"

  5738.     else

  5739.         disable network

  5740.     fi

  5741. fi

  5742. 

  5743. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5744. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5745. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5746. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5747. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5748. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5749. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5750. 

  5751. case "$custom_allocator" in

  5752.     jemalloc)

  5753.         # jemalloc by default does not use a prefix

  5754.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5755.     ;;

  5756.     tcmalloc)

  5757.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5758.         malloc_prefix=tc_

  5759.     ;;

  5760. esac

  5761. 

  5762. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5763. check_func  ${malloc_prefix}memalign            && enable memalign

  5764. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5765. 

  5766. check_func  access

  5767. check_func_headers stdlib.h arc4random

  5768. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5769. check_func  fcntl

  5770. check_func  fork

  5771. check_func  gethrtime

  5772. check_func  getopt

  5773. check_func  getrusage

  5774. check_func  gettimeofday

  5775. check_func  isatty

  5776. check_func  mkstemp

  5777. check_func  mmap

  5778. check_func  mprotect

  5779. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5780. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5781. check_func  sched_getaffinity

  5782. check_func  setrlimit

  5783. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5784. check_func  strerror_r

  5785. check_func  sysconf

  5786. check_func  sysctl

  5787. check_func  usleep

  5788. 

  5789. check_func_headers conio.h kbhit

  5790. check_func_headers io.h setmode

  5791. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5792. check_func_headers mach/mach_time.h mach_absolute_time

  5793. check_func_headers stdlib.h getenv

  5794. check_func_headers sys/stat.h lstat

  5795. 

  5796. check_func_headers windows.h GetProcessAffinityMask

  5797. check_func_headers windows.h GetProcessTimes

  5798. check_func_headers windows.h GetSystemTimeAsFileTime

  5799. check_func_headers windows.h LoadLibrary

  5800. check_func_headers windows.h MapViewOfFile

  5801. check_func_headers windows.h PeekNamedPipe

  5802. check_func_headers windows.h SetConsoleTextAttribute

  5803. check_func_headers windows.h SetConsoleCtrlHandler

  5804. check_func_headers windows.h Sleep

  5805. check_func_headers windows.h VirtualAlloc

  5806. check_func_headers glob.h glob

  5807. enabled xlib &&

  5808.     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5809. 

  5810. check_header direct.h

  5811. check_header dirent.h

  5812. check_header dxgidebug.h

  5813. check_header dxva.h

  5814. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5815. check_header io.h

  5816. check_header linux/perf_event.h

  5817. check_header libcrystalhd/libcrystalhd_if.h

  5818. check_header malloc.h

  5819. check_header net/udplite.h

  5820. check_header poll.h

  5821. check_header sys/param.h

  5822. check_header sys/resource.h

  5823. check_header sys/select.h

  5824. check_header sys/time.h

  5825. check_header sys/un.h

  5826. check_header termios.h

  5827. check_header unistd.h

  5828. check_header valgrind/valgrind.h

  5829. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5830. check_header windows.h

  5831. check_header X11/extensions/XvMClib.h

  5832. check_header asm/types.h

  5833. 

  5834. # it seems there are versions of clang in some distros that try to use the

  5835. # gcc headers, which explodes for stdatomic

  5836. # so we also check that atomics actually work here

  5837. check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"

  5838. 

  5839. check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32

  5840. check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&

  5841.     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"

  5842. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5843. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5844. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5845. 

  5846. check_lib android android/native_window.h ANativeWindow_acquire -landroid

  5847. check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk

  5848. check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk

  5849. 

  5850. enabled appkit       && check_apple_framework AppKit

  5851. enabled audiotoolbox && check_apple_framework AudioToolbox

  5852. enabled avfoundation && check_apple_framework AVFoundation

  5853. enabled coreimage    && check_apple_framework CoreImage

  5854. enabled videotoolbox && check_apple_framework VideoToolbox

  5855. 

  5856. check_apple_framework CoreFoundation

  5857. check_apple_framework CoreMedia

  5858. check_apple_framework CoreVideo

  5859. 

  5860. enabled avfoundation && {

  5861.     disable coregraphics applicationservices

  5862.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5863.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5864. 

  5865. enabled videotoolbox && {

  5866.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5867.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5868. }

  5869. 

  5870. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5871. 

  5872. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5873. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5874. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5875. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5876. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5877. 

  5878. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5879. check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"

  5880. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5881. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5882. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5883. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5884. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5885. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5886. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5887. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5888. 

  5889. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5890. 

  5891. if ! disabled ffnvcodec; then

  5892.     check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.2" \

  5893.           "ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h" "" || \

  5894.         { test_pkg_config ffnvcodec_tmp "ffnvcodec < 8.1" "" "" && check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.2" \

  5895.           "ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h" ""; }

  5896. fi

  5897. 

  5898. check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"

  5899. 

  5900. if ! disabled w32threads && ! enabled pthreads; then

  5901.     check_func_headers "windows.h process.h" _beginthreadex &&

  5902.         check_type "windows.h" CONDITION_VARIABLE &&

  5903.         check_type "windows.h" INIT_ONCE &&

  5904.         enable w32threads || disable w32threads

  5905.     if ! enabled w32threads && enabled winrt; then

  5906.         check_func_headers "windows.h" CreateThread &&

  5907.             enable w32threads || disable w32threads

  5908.     fi

  5909. fi

  5910. 

  5911. # check for some common methods of building with pthread support

  5912. # do this before the optional library checks as some of them require pthreads

  5913. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5914.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5915.        check_lib pthreads pthread.h pthread_create -pthread; then

  5916.         add_cflags -pthread

  5917.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5918.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5919.         add_cflags -pthreads

  5920.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5921.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5922.         add_cflags -ldl -pthread

  5923.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5924.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5925.         :

  5926.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5927.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5928.         :

  5929.     elif check_func pthread_join && check_func pthread_create; then

  5930.         enable pthreads

  5931.     fi

  5932.     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"

  5933. 

  5934.     if enabled pthreads; then

  5935.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5936.         check_func pthread_cancel $pthreads_extralibs

  5937.     fi

  5938. fi

  5939. 

  5940. enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||

  5941.                    check_lib zlib   zlib.h      zlibVersion    -lz; }

  5942. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5943. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5944. 

  5945. # On some systems dynamic loading requires no extra linker flags

  5946. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5947. 

  5948. check_lib libm math.h sin -lm

  5949. 

  5950. atan2f_args=2

  5951. copysign_args=2

  5952. hypot_args=2

  5953. ldexpf_args=2

  5954. powf_args=2

  5955. 

  5956. for func in $MATH_FUNCS; do

  5957.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5958. done

  5959. 

  5960. for func in $COMPLEX_FUNCS; do

  5961.     eval check_complexfunc $func \${${func}_args:-1}

  5962. done

  5963. 

  5964. # these are off by default, so fail if requested and not available

  5965. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5966. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5967. enabled decklink          && { require_header DeckLinkAPI.h &&

  5968.                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5969. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5970. enabled frei0r            && require_header frei0r.h

  5971. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5972. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5973. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5974. enabled ladspa            && require_header ladspa.h

  5975. enabled libaom            && require_pkg_config libaom "aom >= 0.1.0" aom/aom_codec.h aom_codec_version

  5976. enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new

  5977. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5978. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5979. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5980. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5981. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5982.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5983.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5984. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5985. enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2

  5986. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5987. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5988. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5989.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5990.                                  warn "using libfdk without pkg-config"; } }

  5991. flite_extralibs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"

  5992. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5993. enabled fontconfig        && enable libfontconfig

  5994. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5995. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5996. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5997. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5998.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5999. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  6000.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  6001.                                done || die "ERROR: libgsm not found"; }

  6002. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  6003. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  6004. # While it may appear that require is being used as a pkg-config

  6005. # fallback for libmfx, it is actually being used to detect a different

  6006. # installation route altogether.  If libmfx is installed via the Intel

  6007. # Media SDK or Intel Media Server Studio, these don't come with

  6008. # pkg-config support.  Instead, users should make sure that the build

  6009. # can find the libraries and headers through other means.

  6010. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  6011.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  6012. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  6013. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs

  6014. enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_load ||

  6015.                                require libmysofa mysofa.h mysofa_load -lmysofa $zlib_extralibs; }

  6016. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  6017.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  6018.                                die "ERROR: libnpp not found"; }

  6019. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  6020. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  6021. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  6022.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  6023.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  6024.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  6025. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  6026. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  6027.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  6028. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  6029. enabled libopus           && {

  6030.     enabled libopus_decoder && {

  6031.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  6032.     }

  6033.     enabled libopus_encoder && {

  6034.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  6035.     }

  6036. }

  6037. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  6038. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  6039. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  6040. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  6041. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  6042. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  6043.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  6044. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  6045. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  6046. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  6047. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  6048. enabled libsrt            && require_pkg_config libsrt "srt >= 1.2.0" srt/srt.h srt_socket

  6049. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  6050. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  6051. enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure

  6052. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  6053.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  6054.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  6055. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  6056. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  6057. enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 0.6.2" libvmaf.h compute_vmaf

  6058. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  6059. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  6060.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  6061. 

  6062. enabled libvpx            && {

  6063.     enabled libvpx_vp8_decoder && {

  6064.         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  6065.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  6066.                 die "ERROR: libvpx decoder version must be >=1.4.0";

  6067.     }

  6068.     enabled libvpx_vp8_encoder && {

  6069.         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  6070.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  6071.                 die "ERROR: libvpx encoder version must be >=1.4.0";

  6072.     }

  6073.     enabled libvpx_vp9_decoder && {

  6074.         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  6075.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  6076.     }

  6077.     enabled libvpx_vp9_encoder && {

  6078.         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  6079.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  6080.     }

  6081.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  6082.         die "libvpx enabled but no supported decoders found"

  6083.     fi

  6084. }

  6085. 

  6086. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  6087. enabled libwebp           && {

  6088.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  6089.     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  6090. enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  6091.                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&

  6092.                                  warn "using libx264 without pkg-config"; } } &&

  6093.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  6094.                              check_cpp_condition libx262 x264.h "X264_MPEG2"

  6095. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  6096.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  6097. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  6098. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  6099. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version

  6100. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  6101. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  6102.                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  6103.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  6104. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  6105. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  6106. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  6107.                                { ! enabled cross_compile &&

  6108.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  6109.                                  add_ldflags -L/opt/vc/lib/ &&

  6110.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  6111.                                die "ERROR: mmal not found" &&

  6112.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  6113. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  6114.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  6115.                                die "ERROR: openal not found"; } &&

  6116.                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  6117.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  6118. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  6119.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  6120.                                die "ERROR: opencl not found"; } &&

  6121.                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  6122.                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  6123.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  6124. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  6125.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  6126.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6127.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6128.                                die "ERROR: opengl not found."

  6129.                              }

  6130. enabled omx               && require_header OMX_Core.h

  6131. enabled omx_rpi           && { check_header OMX_Core.h ||

  6132.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6133.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  6134. enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  6135.                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  6136.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6137.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6138.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6139.                                die "ERROR: openssl not found"; }

  6140. enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&

  6141.                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&

  6142.                                { enabled libdrm ||

  6143.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  6144.                              }

  6145. enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init

  6146. 

  6147. 

  6148. if enabled gcrypt; then

  6149.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6150.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6151.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6152.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6153.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6154.             die "ERROR: gcrypt not found"

  6155.         add_cflags $gcrypt_cflags

  6156.     else

  6157.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6158.     fi

  6159. fi

  6160. 

  6161. if enabled sdl2; then

  6162.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6163.     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent

  6164.     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6165.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6166.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6167.         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6168.         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6169.         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&

  6170.             enable sdl2

  6171.     fi

  6172.     if test $target_os = "mingw32"; then

  6173.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6174.     fi

  6175. fi

  6176. 

  6177. if enabled decklink; then

  6178.     case $target_os in

  6179.         mingw32*|mingw64*|win32|win64)

  6180.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6181.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6182.             ;;

  6183.     esac

  6184. fi

  6185. 

  6186. enabled securetransport &&

  6187.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6188.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6189.         disable securetransport

  6190. 

  6191. enabled securetransport &&

  6192.     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"

  6193. 

  6194. enabled schannel &&

  6195.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6196.     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6197.     schannel_extralibs="-lsecur32" ||

  6198.         disable schannel

  6199. 

  6200. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6201. enabled makeinfo \

  6202.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6203.     && enable makeinfo_html || disable makeinfo_html

  6204. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6205. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6206. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6207. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6208. 

  6209. # check V4L2 codecs available in the API

  6210. check_header linux/fb.h

  6211. check_header linux/videodev2.h

  6212. test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6213. check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"

  6214. check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"

  6215. check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"

  6216. check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"

  6217. check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"

  6218. check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"

  6219. check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"

  6220. check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"

  6221. check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"

  6222. check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"

  6223. 

  6224. check_header sys/videoio.h

  6225. test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6226. 

  6227. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6228. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6229. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6230. # w32api 3.12 had it defined wrong

  6231. check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"

  6232. 

  6233. check_type "dshow.h" IBaseFilter

  6234. 

  6235. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6236. check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||

  6237.     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||

  6238.     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||

  6239.     check_header "dev/ic/bt8xx.h"

  6240. 

  6241. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6242.     enable_sanitized sys/soundcard.h

  6243. else

  6244.     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6245.     #include <sys/soundcard.h>

  6246.     audio_buf_info abc;

  6247. EOF

  6248. fi

  6249. 

  6250. enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6251.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6252. 

  6253. enabled libjack &&

  6254.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6255. 

  6256. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6257. 

  6258. if enabled libcdio; then

  6259.     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6260.     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6261.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6262.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6263.     die "ERROR: No usable libcdio/cdparanoia found"

  6264. fi

  6265. 

  6266. enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6267.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6268. 

  6269. if enabled libxcb; then

  6270.     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6271.     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6272.     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6273. fi

  6274. 

  6275. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6276. 

  6277. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6278. # the desktop api partition

  6279. test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6280. #ifdef WINAPI_FAMILY

  6281. #include <winapifamily.h>

  6282. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6283. #error desktop, not uwp

  6284. #else

  6285. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6286. #endif

  6287. #else

  6288. #error no family set

  6289. #endif

  6290. EOF

  6291. 

  6292. enabled vaapi &&

  6293.     check_lib vaapi va/va.h vaInitialize -lva

  6294. 

  6295. enabled vaapi &&

  6296.     check_cc vaapi "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)"

  6297. 

  6298. if enabled vaapi; then

  6299.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6300.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6301. fi

  6302. 

  6303. enabled vaapi &&

  6304.     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"

  6305. 

  6306. if enabled_all opencl libdrm ; then

  6307.     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&

  6308.         enable opencl_drm_beignet

  6309.     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&

  6310.         enable opencl_drm_arm

  6311. fi

  6312. 

  6313. if enabled_all opencl vaapi ; then

  6314.     enabled opencl_drm_beignet && enable opencl_vaapi_beignet

  6315.     if enabled libmfx ; then

  6316.         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&

  6317.             enable opencl_vaapi_intel_media

  6318.     fi

  6319. fi

  6320. 

  6321. if enabled_all opencl dxva2 ; then

  6322.     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&

  6323.         enable opencl_dxva2

  6324. fi

  6325. 

  6326. if enabled_all opencl d3d11va ; then

  6327.     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&

  6328.         enable opencl_d3d11

  6329. fi

  6330. 

  6331. enabled vdpau &&

  6332.     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"

  6333. 

  6334. enabled vdpau &&

  6335.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6336. 

  6337. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6338. 

  6339. if enabled x86; then

  6340.     case $target_os in

  6341.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6342.             ;;

  6343.         *)

  6344.             disable ffnvcodec cuvid nvdec nvenc

  6345.             ;;

  6346.     esac

  6347. else

  6348.     disable ffnvcodec cuvid nvdec nvenc

  6349. fi

  6350. 

  6351. enabled ffnvcodec && enable cuda

  6352. 

  6353. enabled nvenc &&

  6354.     test_cc -I$source_path <<EOF || disable nvenc

  6355. #include <ffnvcodec/nvEncodeAPI.h>

  6356. NV_ENCODE_API_FUNCTION_LIST flist;

  6357. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6358. int main(void) { return 0; }

  6359. EOF

  6360. 

  6361. enabled amf &&

  6362.     check_cpp_condition amf "AMF/core/Version.h" \

  6363.         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"

  6364. 

  6365. # Funny iconv installations are not unusual, so check it after all flags have been set

  6366. if enabled libc_iconv; then

  6367.     check_func_headers iconv.h iconv

  6368. elif enabled iconv; then

  6369.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6370. fi

  6371. 

  6372. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6373. 

  6374. # add some useful compiler flags if supported

  6375. check_cflags -Wdeclaration-after-statement

  6376. check_cflags -Wall

  6377. check_cflags -Wdisabled-optimization

  6378. check_cflags -Wpointer-arith

  6379. check_cflags -Wredundant-decls

  6380. check_cflags -Wwrite-strings

  6381. check_cflags -Wtype-limits

  6382. check_cflags -Wundef

  6383. check_cflags -Wmissing-prototypes

  6384. check_cflags -Wno-pointer-to-int-cast

  6385. check_cflags -Wstrict-prototypes

  6386. check_cflags -Wempty-body

  6387. 

  6388. if enabled extra_warnings; then

  6389.     check_cflags -Wcast-qual

  6390.     check_cflags -Wextra

  6391.     check_cflags -Wpedantic

  6392. fi

  6393. 

  6394. check_disable_warning(){

  6395.     warning_flag=-W${1#-Wno-}

  6396.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6397. }

  6398. 

  6399. test_cflags -Werror=unused-command-line-argument &&

  6400.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6401. test_cflags -Werror=unknown-warning-option &&

  6402.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6403. 

  6404. check_disable_warning -Wno-parentheses

  6405. check_disable_warning -Wno-switch

  6406. check_disable_warning -Wno-format-zero-length

  6407. check_disable_warning -Wno-pointer-sign

  6408. check_disable_warning -Wno-unused-const-variable

  6409. check_disable_warning -Wno-bool-operation

  6410. 

  6411. check_disable_warning_headers(){

  6412.     warning_flag=-W${1#-Wno-}

  6413.     test_cflags $warning_flag && add_cflags_headers $1

  6414. }

  6415. 

  6416. check_disable_warning_headers -Wno-deprecated-declarations

  6417. check_disable_warning_headers -Wno-unused-variable

  6418. 

  6419. test_cc <<EOF && enable blocks_extension

  6420. void (^block)(void);

  6421. EOF

  6422. 

  6423. # add some linker flags

  6424. check_ldflags -Wl,--warn-common

  6425. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6426. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6427. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6428. 

  6429. # add some strip flags

  6430. check_stripflags -x

  6431. 

  6432. enabled neon_clobber_test &&

  6433.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6434.                   -Wl,--wrap,avcodec_decode_audio4      \

  6435.                   -Wl,--wrap,avcodec_decode_video2      \

  6436.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6437.                   -Wl,--wrap,avcodec_encode_audio2      \

  6438.                   -Wl,--wrap,avcodec_encode_video2      \

  6439.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6440.                   -Wl,--wrap,avcodec_send_packet        \

  6441.                   -Wl,--wrap,avcodec_receive_packet     \

  6442.                   -Wl,--wrap,avcodec_send_frame         \

  6443.                   -Wl,--wrap,avcodec_receive_frame      \

  6444.                   -Wl,--wrap,swr_convert                \

  6445.                   -Wl,--wrap,avresample_convert ||

  6446.     disable neon_clobber_test

  6447. 

  6448. enabled xmm_clobber_test &&

  6449.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6450.                   -Wl,--wrap,avcodec_decode_audio4      \

  6451.                   -Wl,--wrap,avcodec_decode_video2      \

  6452.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6453.                   -Wl,--wrap,avcodec_encode_audio2      \

  6454.                   -Wl,--wrap,avcodec_encode_video2      \

  6455.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6456.                   -Wl,--wrap,avcodec_send_packet        \

  6457.                   -Wl,--wrap,avcodec_receive_packet     \

  6458.                   -Wl,--wrap,avcodec_send_frame         \

  6459.                   -Wl,--wrap,avcodec_receive_frame      \

  6460.                   -Wl,--wrap,swr_convert                \

  6461.                   -Wl,--wrap,avresample_convert         \

  6462.                   -Wl,--wrap,sws_scale ||

  6463.     disable xmm_clobber_test

  6464. 

  6465. check_ld "cc" proper_dce <<EOF

  6466. extern const int array[512];

  6467. static inline int func(void) { return array[0]; }

  6468. int main(void) { return 0; }

  6469. EOF

  6470. 

  6471. if enabled proper_dce; then

  6472.     echo "X { local: *; };" > $TMPV

  6473.     if test_ldflags -Wl,${version_script},$TMPV; then

  6474.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6475.         quotes='""'

  6476.         test_cc <<EOF && enable symver_asm_label

  6477. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6478. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6479. EOF

  6480.         test_cc <<EOF && enable symver_gnu_asm

  6481. __asm__(".symver ff_foo,av_foo@VERSION");

  6482. void ff_foo(void) {}

  6483. EOF

  6484.     fi

  6485. fi

  6486. 

  6487. if [ -z "$optflags" ]; then

  6488.     if enabled small; then

  6489.         optflags=$cflags_size

  6490.     elif enabled optimizations; then

  6491.         optflags=$cflags_speed

  6492.     else

  6493.         optflags=$cflags_noopt

  6494.     fi

  6495. fi

  6496. 

  6497. if [ -z "$nvccflags" ]; then

  6498.     nvccflags=$nvccflags_default

  6499. fi

  6500. 

  6501. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6502.     nvccflags="$nvccflags -m64"

  6503. else

  6504.     nvccflags="$nvccflags -m32"

  6505. fi

  6506. 

  6507. check_optflags(){

  6508.     check_cflags "$@"

  6509.     enabled lto && check_ldflags "$@"

  6510. }

  6511. 

  6512. check_optflags $optflags

  6513. check_optflags -fno-math-errno

  6514. check_optflags -fno-signed-zeros

  6515. 

  6516. if enabled lto; then

  6517.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6518.     check_cflags  -flto

  6519.     check_ldflags -flto $cpuflags

  6520.     disable inline_asm_direct_symbol_refs

  6521. fi

  6522. 

  6523. enabled ftrapv && check_cflags -ftrapv

  6524. 

  6525. test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6526. int x;

  6527. EOF

  6528. 

  6529. 

  6530. if enabled icc; then

  6531.     # Just warnings, no remarks

  6532.     check_cflags -w1

  6533.     # -wd: Disable following warnings

  6534.     # 144, 167, 556: -Wno-pointer-sign

  6535.     # 188: enumerated type mixed with another type

  6536.     # 1292: attribute "foo" ignored

  6537.     # 1419: external declaration in primary source file

  6538.     # 10006: ignoring unknown option -fno-signed-zeros

  6539.     # 10148: ignoring unknown option -Wno-parentheses

  6540.     # 10156: ignoring option '-W'; no argument required

  6541.     # 13200: No EMMS instruction before call to function

  6542.     # 13203: No EMMS instruction before return from function

  6543.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6544.     # 11030: Warning unknown option --as-needed

  6545.     # 10156: ignoring option '-export'; no argument required

  6546.     check_ldflags -wd10156,11030

  6547.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6548.     enable ebp_available

  6549.     # The test above does not test linking

  6550.     enabled lto && disable symver_asm_label

  6551.     if enabled x86_32; then

  6552.         icc_version=$($cc -dumpversion)

  6553.         test ${icc_version%%.*} -ge 11 &&

  6554.             check_cflags -falign-stack=maintain-16-byte ||

  6555.             disable aligned_stack

  6556.     fi

  6557. elif enabled gcc; then

  6558.     check_optflags -fno-tree-vectorize

  6559.     check_cflags -Werror=format-security

  6560.     check_cflags -Werror=implicit-function-declaration

  6561.     check_cflags -Werror=missing-prototypes

  6562.     check_cflags -Werror=return-type

  6563.     check_cflags -Werror=vla

  6564.     check_cflags -Wformat

  6565.     check_cflags -fdiagnostics-color=auto

  6566.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6567.     if enabled x86_32; then

  6568.         case $target_os in

  6569.         *bsd*)

  6570.             # BSDs don't guarantee a 16 byte aligned stack, but we can

  6571.             # request GCC to try to maintain 16 byte alignment throughout

  6572.             # function calls. Library entry points that might call assembly

  6573.             # functions align the stack. (The parameter means 2^4 bytes.)

  6574.             check_cflags -mpreferred-stack-boundary=4

  6575.             ;;

  6576.         esac

  6577.     fi

  6578. elif enabled llvm_gcc; then

  6579.     check_cflags -mllvm -stack-alignment=16

  6580. elif enabled clang; then

  6581.     if enabled x86_32; then

  6582.         # Clang doesn't support maintaining alignment without assuming the

  6583.         # same alignment in every function. If 16 byte alignment would be

  6584.         # enabled, one would also have to either add attribute_align_arg on

  6585.         # every single entry point into the libraries or enable -mstackrealign

  6586.         # (doing stack realignment in every single function).

  6587.         case $target_os in

  6588.         mingw32|win32|*bsd*)

  6589.             disable aligned_stack

  6590.             ;;

  6591.         *)

  6592.             check_cflags -mllvm -stack-alignment=16

  6593.             check_cflags -mstack-alignment=16

  6594.             ;;

  6595.         esac

  6596.     else

  6597.         check_cflags -mllvm -stack-alignment=16

  6598.         check_cflags -mstack-alignment=16

  6599.     fi

  6600.     check_cflags -Qunused-arguments

  6601.     check_cflags -Werror=implicit-function-declaration

  6602.     check_cflags -Werror=missing-prototypes

  6603.     check_cflags -Werror=return-type

  6604. elif enabled cparser; then

  6605.     add_cflags -Wno-missing-variable-declarations

  6606.     add_cflags -Wno-empty-statement

  6607. elif enabled armcc; then

  6608.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6609.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6610.     # 2523: use of inline assembly is deprecated

  6611.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6612.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6613.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6614.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6615.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6616.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6617. elif enabled pathscale; then

  6618.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6619.     disable inline_asm

  6620. elif enabled_any msvc icl; then

  6621.     enabled x86_32 && disable aligned_stack

  6622.     enabled_all x86_32 debug && add_cflags -Oy-

  6623.     enabled debug && add_ldflags -debug

  6624.     enable pragma_deprecated

  6625.     if enabled icl; then

  6626.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6627.         # (correctly) on icl 13.x.

  6628.         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6629.             add_cflags -Qansi-alias

  6630.         # Some inline asm is not compilable in debug

  6631.         if enabled debug; then

  6632.             disable ebp_available

  6633.             disable ebx_available

  6634.         fi

  6635.     fi

  6636.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6637.     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"

  6638.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6639.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6640.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6641.     # MSVC 2013 and newer can handle it fine.

  6642.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6643.     # happens in config.h.

  6644.     if [ $restrict_keyword != restrict ]; then

  6645.         test_cc <<EOF || add_cflags -FIstdlib.h

  6646. __declspec($restrict_keyword) void *foo(int);

  6647. EOF

  6648.     fi

  6649.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6650.     # Issue has been fixed in MSVC v19.00.24218.

  6651.     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6652.         check_cflags -d2SSAOptimizer-

  6653.     # enable utf-8 source processing on VS2015 U2 and newer

  6654.     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6655.         add_cflags -utf-8

  6656. fi

  6657. 

  6658. for pfx in "" host_; do

  6659.     varname=${pfx%_}cc_type

  6660.     eval "type=\$$varname"

  6661.     if [ "$type" = "msvc" ]; then

  6662.         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6663. static inline int foo(int a) { return a; }

  6664. EOF

  6665.     fi

  6666. done

  6667. 

  6668. case $as_type in

  6669.     clang)

  6670.         add_asflags -Qunused-arguments

  6671.     ;;

  6672. esac

  6673. 

  6674. case $ld_type in

  6675.     clang)

  6676.         check_ldflags -Qunused-arguments

  6677.     ;;

  6678. esac

  6679. 

  6680. enable frame_thread_encoder

  6681. 

  6682. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6683. 

  6684. check_deps $CONFIG_LIST       \

  6685.            $CONFIG_EXTRA      \

  6686.            $HAVE_LIST         \

  6687.            $ALL_COMPONENTS    \

  6688. 

  6689. enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"

  6690. enabled avresample && warn "Building with deprecated library libavresample"

  6691. 

  6692. if test $target_os = "haiku"; then

  6693.     disable memalign

  6694.     disable posix_memalign

  6695. fi

  6696. 

  6697. flatten_extralibs(){

  6698.     unset nested_entries

  6699.     list_name=$1

  6700.     eval list=\$${1}

  6701.     for entry in $list; do

  6702.         entry_copy=$entry

  6703.         resolve entry_copy

  6704.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6705.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6706.         eval $entry="\$flat_entries"

  6707.     done

  6708.     append $list_name "$nested_entries"

  6709. 

  6710.     resolve nested_entries

  6711.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6712.         flatten_extralibs $list_name

  6713.     fi

  6714. }

  6715. 

  6716. flatten_extralibs_wrapper(){

  6717.     list_name=$1

  6718.     flatten_extralibs $list_name

  6719.     unique $list_name

  6720.     resolve $list_name

  6721.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6722.     eval printf \''%s'\' \""\$$list_name"\"

  6723. }

  6724. 

  6725. for linkunit in $LIBRARY_LIST; do

  6726.     unset current_extralibs

  6727.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6728.     for comp in ${components}; do

  6729.         enabled $comp || continue

  6730.         comp_extralibs="${comp}_extralibs"

  6731.         append current_extralibs $comp_extralibs

  6732.     done

  6733.     eval prepend ${linkunit}_extralibs $current_extralibs

  6734. done

  6735. 

  6736. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6737.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6738. done

  6739. 

  6740. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6741. 

  6742. for thread in $THREADS_LIST; do

  6743.     if enabled $thread; then

  6744.         test -n "$thread_type" &&

  6745.             die "ERROR: Only one thread type must be selected." ||

  6746.             thread_type="$thread"

  6747.     fi

  6748. done

  6749. 

  6750. if disabled stdatomic; then

  6751.     if enabled atomics_gcc; then

  6752.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6753.     elif enabled atomics_win32; then

  6754.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6755.     elif enabled atomics_suncc; then

  6756.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6757.     elif enabled pthreads; then

  6758.         add_compat atomics/pthread/stdatomic.o

  6759.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6760.     else

  6761.         enabled threads && die "Threading is enabled, but no atomics are available"

  6762.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6763.     fi

  6764. fi

  6765. 

  6766. # Check if requested libraries were found.

  6767. for lib in $AUTODETECT_LIBS; do

  6768.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6769. done

  6770. 

  6771. enabled zlib && add_cppflags -DZLIB_CONST

  6772. 

  6773. # conditional library dependencies, in linking order

  6774. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6775. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6776. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6777. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6778. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6779. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6780. enabled convolve_filter     && prepend avfilter_deps "avcodec"

  6781. enabled deconvolve_filter   && prepend avfilter_deps "avcodec"

  6782. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6783. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6784. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6785. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6786. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6787. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6788. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6789. enabled pan_filter          && prepend avfilter_deps "swresample"

  6790. enabled pp_filter           && prepend avfilter_deps "postproc"

  6791. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6792. enabled resample_filter && prepend avfilter_deps "avresample"

  6793. enabled sab_filter          && prepend avfilter_deps "swscale"

  6794. enabled scale_filter    && prepend avfilter_deps "swscale"

  6795. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6796. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6797. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6798. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6799. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6800. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6801. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6802. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6803. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6804. enabled srcnn_filter        && prepend avfilter_deps "avformat"

  6805. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6806. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6807. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6808. 

  6809. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6810. 

  6811. #FIXME

  6812. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6813. 

  6814. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6815. 

  6816. expand_deps(){

  6817.     lib_deps=${1}_deps

  6818.     eval "deps=\$$lib_deps"

  6819.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6820.     unique $lib_deps

  6821. }

  6822. 

  6823. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6824. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6825. 

  6826. map 'expand_deps $v' $LIBRARY_LIST

  6827. 

  6828. if test "$quiet" != "yes"; then

  6829. 

  6830. echo "install prefix            $prefix"

  6831. echo "source path               $source_path"

  6832. echo "C compiler                $cc"

  6833. echo "C library                 $libc_type"

  6834. if test "$host_cc" != "$cc"; then

  6835.     echo "host C compiler           $host_cc"

  6836.     echo "host C library            $host_libc_type"

  6837. fi

  6838. echo "ARCH                      $arch ($cpu)"

  6839. if test "$build_suffix" != ""; then

  6840.     echo "build suffix              $build_suffix"

  6841. fi

  6842. if test "$progs_suffix" != ""; then

  6843.     echo "progs suffix              $progs_suffix"

  6844. fi

  6845. if test "$extra_version" != ""; then

  6846.     echo "version string suffix     $extra_version"

  6847. fi

  6848. echo "big-endian                ${bigendian-no}"

  6849. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6850. if enabled x86; then

  6851.     echo "standalone assembly       ${x86asm-no}"

  6852.     echo "x86 assembler             ${x86asmexe}"

  6853.     echo "MMX enabled               ${mmx-no}"

  6854.     echo "MMXEXT enabled            ${mmxext-no}"

  6855.     echo "3DNow! enabled            ${amd3dnow-no}"

  6856.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6857.     echo "SSE enabled               ${sse-no}"

  6858.     echo "SSSE3 enabled             ${ssse3-no}"

  6859.     echo "AESNI enabled             ${aesni-no}"

  6860.     echo "AVX enabled               ${avx-no}"

  6861.     echo "AVX2 enabled              ${avx2-no}"

  6862.     echo "AVX-512 enabled           ${avx512-no}"

  6863.     echo "XOP enabled               ${xop-no}"

  6864.     echo "FMA3 enabled              ${fma3-no}"

  6865.     echo "FMA4 enabled              ${fma4-no}"

  6866.     echo "i686 features enabled     ${i686-no}"

  6867.     echo "CMOV is fast              ${fast_cmov-no}"

  6868.     echo "EBX available             ${ebx_available-no}"

  6869.     echo "EBP available             ${ebp_available-no}"

  6870. fi

  6871. if enabled aarch64; then

  6872.     echo "NEON enabled              ${neon-no}"

  6873.     echo "VFP enabled               ${vfp-no}"

  6874. fi

  6875. if enabled arm; then

  6876.     echo "ARMv5TE enabled           ${armv5te-no}"

  6877.     echo "ARMv6 enabled             ${armv6-no}"

  6878.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6879.     echo "VFP enabled               ${vfp-no}"

  6880.     echo "NEON enabled              ${neon-no}"

  6881.     echo "THUMB enabled             ${thumb-no}"

  6882. fi

  6883. if enabled mips; then

  6884.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6885.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6886.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6887.     echo "MIPS MSA enabled          ${msa-no}"

  6888.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6889. fi

  6890. if enabled ppc; then

  6891.     echo "AltiVec enabled           ${altivec-no}"

  6892.     echo "VSX enabled               ${vsx-no}"

  6893.     echo "POWER8 enabled            ${power8-no}"

  6894.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6895.     echo "dcbzl available           ${dcbzl-no}"

  6896. fi

  6897. echo "debug symbols             ${debug-no}"

  6898. echo "strip symbols             ${stripping-no}"

  6899. echo "optimize for size         ${small-no}"

  6900. echo "optimizations             ${optimizations-no}"

  6901. echo "static                    ${static-no}"

  6902. echo "shared                    ${shared-no}"

  6903. echo "postprocessing support    ${postproc-no}"

  6904. echo "network support           ${network-no}"

  6905. echo "threading support         ${thread_type-no}"

  6906. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6907. echo "texi2html enabled         ${texi2html-no}"

  6908. echo "perl enabled              ${perl-no}"

  6909. echo "pod2man enabled           ${pod2man-no}"

  6910. echo "makeinfo enabled          ${makeinfo-no}"

  6911. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6912. test -n "$random_seed" &&

  6913.     echo "random seed               ${random_seed}"

  6914. echo

  6915. 

  6916. echo "External libraries:"

  6917. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6918. echo

  6919. 

  6920. echo "External libraries providing hardware acceleration:"

  6921. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6922. echo

  6923. 

  6924. echo "Libraries:"

  6925. print_enabled '' $LIBRARY_LIST | print_in_columns

  6926. echo

  6927. 

  6928. echo "Programs:"

  6929. print_enabled '' $PROGRAM_LIST | print_in_columns

  6930. echo

  6931. 

  6932. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6933.     echo "Enabled ${type}s:"

  6934.     eval list=\$$(toupper $type)_LIST

  6935.     print_enabled '_*' $list | print_in_columns

  6936.     echo

  6937. done

  6938. 

  6939. if test -n "$ignore_tests"; then

  6940.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6941.     echo "Ignored FATE tests:"

  6942.     echo $ignore_tests | print_in_columns

  6943.     echo

  6944. fi

  6945. 

  6946. echo "License: $license"

  6947. 

  6948. fi # test "$quiet" != "yes"

  6949. 

  6950. if test -n "$WARNINGS"; then

  6951.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6952.     enabled fatal_warnings && exit 1

  6953. fi

  6954. 

  6955. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6956. 

  6957. esc(){

  6958.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6959. }

  6960. 

  6961. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6962. 

  6963. enabled stripping || strip="echo skipping strip"

  6964. enabled stripping || striptype=""

  6965. 

  6966. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6967. 

  6968. cat > ffbuild/config.mak <<EOF

  6969. # Automatically generated by configure - do not modify!

  6970. ifndef FFMPEG_CONFIG_MAK

  6971. FFMPEG_CONFIG_MAK=1

  6972. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6973. prefix=$prefix

  6974. LIBDIR=\$(DESTDIR)$libdir

  6975. SHLIBDIR=\$(DESTDIR)$shlibdir

  6976. INCDIR=\$(DESTDIR)$incdir

  6977. BINDIR=\$(DESTDIR)$bindir

  6978. DATADIR=\$(DESTDIR)$datadir

  6979. DOCDIR=\$(DESTDIR)$docdir

  6980. MANDIR=\$(DESTDIR)$mandir

  6981. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6982. INSTALL_NAME_DIR=$install_name_dir

  6983. SRC_PATH=$source_path

  6984. SRC_LINK=$source_link

  6985. ifndef MAIN_MAKEFILE

  6986. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6987. endif

  6988. CC_IDENT=$cc_ident

  6989. ARCH=$arch

  6990. INTRINSICS=$intrinsics

  6991. EXTERN_PREFIX=$extern_prefix

  6992. CC=$cc

  6993. CXX=$cxx

  6994. AS=$as

  6995. OBJCC=$objcc

  6996. LD=$ld

  6997. DEPCC=$dep_cc

  6998. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6999. DEPAS=$as

  7000. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  7001. X86ASM=$x86asmexe

  7002. DEPX86ASM=$x86asmexe

  7003. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  7004. AR=$ar

  7005. ARFLAGS=$arflags

  7006. AR_O=$ar_o

  7007. AR_CMD=$ar

  7008. NM_CMD=$nm

  7009. RANLIB=$ranlib

  7010. STRIP=$strip

  7011. STRIPTYPE=$striptype

  7012. NVCC=$nvcc

  7013. CP=cp -p

  7014. LN_S=$ln_s

  7015. CPPFLAGS=$CPPFLAGS

  7016. CFLAGS=$CFLAGS

  7017. CXXFLAGS=$CXXFLAGS

  7018. OBJCFLAGS=$OBJCFLAGS

  7019. ASFLAGS=$ASFLAGS

  7020. NVCCFLAGS=$nvccflags

  7021. AS_C=$AS_C

  7022. AS_O=$AS_O

  7023. OBJCC_C=$OBJCC_C

  7024. OBJCC_E=$OBJCC_E

  7025. OBJCC_O=$OBJCC_O

  7026. CC_C=$CC_C

  7027. CC_E=$CC_E

  7028. CC_O=$CC_O

  7029. CXX_C=$CXX_C

  7030. CXX_O=$CXX_O

  7031. NVCC_C=$NVCC_C

  7032. NVCC_O=$NVCC_O

  7033. LD_O=$LD_O

  7034. X86ASM_O=$X86ASM_O

  7035. LD_LIB=$LD_LIB

  7036. LD_PATH=$LD_PATH

  7037. DLLTOOL=$dlltool

  7038. WINDRES=$windres

  7039. DEPWINDRES=$dep_cc

  7040. DOXYGEN=$doxygen

  7041. LDFLAGS=$LDFLAGS

  7042. LDEXEFLAGS=$LDEXEFLAGS

  7043. LDSOFLAGS=$LDSOFLAGS

  7044. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  7045. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  7046. X86ASMFLAGS=$X86ASMFLAGS

  7047. BUILDSUF=$build_suffix

  7048. PROGSSUF=$progs_suffix

  7049. FULLNAME=$FULLNAME

  7050. LIBPREF=$LIBPREF

  7051. LIBSUF=$LIBSUF

  7052. LIBNAME=$LIBNAME

  7053. SLIBPREF=$SLIBPREF

  7054. SLIBSUF=$SLIBSUF

  7055. EXESUF=$EXESUF

  7056. EXTRA_VERSION=$extra_version

  7057. CCDEP=$CCDEP

  7058. CXXDEP=$CXXDEP

  7059. CCDEP_FLAGS=$CCDEP_FLAGS

  7060. ASDEP=$ASDEP

  7061. ASDEP_FLAGS=$ASDEP_FLAGS

  7062. X86ASMDEP=$X86ASMDEP

  7063. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  7064. CC_DEPFLAGS=$CC_DEPFLAGS

  7065. AS_DEPFLAGS=$AS_DEPFLAGS

  7066. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  7067. HOSTCC=$host_cc

  7068. HOSTLD=$host_ld

  7069. HOSTCFLAGS=$host_cflags

  7070. HOSTCPPFLAGS=$host_cppflags

  7071. HOSTEXESUF=$HOSTEXESUF

  7072. HOSTLDFLAGS=$host_ldflags

  7073. HOSTEXTRALIBS=$host_extralibs

  7074. DEPHOSTCC=$host_cc

  7075. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  7076. HOSTCCDEP=$HOSTCCDEP

  7077. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  7078. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  7079. HOSTCC_C=$HOSTCC_C

  7080. HOSTCC_O=$HOSTCC_O

  7081. HOSTLD_O=$HOSTLD_O

  7082. TARGET_EXEC=$target_exec $target_exec_args

  7083. TARGET_PATH=$target_path

  7084. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  7085. CFLAGS-ffplay=${sdl2_cflags}

  7086. CFLAGS_HEADERS=$CFLAGS_HEADERS

  7087. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  7088. EXTRALIBS=$extralibs

  7089. COMPAT_OBJS=$compat_objs

  7090. INSTALL=$install

  7091. LIBTARGET=${LIBTARGET}

  7092. SLIBNAME=${SLIBNAME}

  7093. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  7094. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  7095. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  7096. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  7097. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  7098. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  7099. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  7100. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  7101. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  7102. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  7103. NOREDZONE_FLAGS=$noredzone_flags

  7104. LIBFUZZER_PATH=$libfuzzer_path

  7105. IGNORE_TESTS=$ignore_tests

  7106. EOF

  7107. 

  7108. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  7109. 

  7110. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  7111.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  7112. done

  7113. 

  7114. cat > $TMPH <<EOF

  7115. /* Automatically generated by configure - do not modify! */

  7116. #ifndef FFMPEG_CONFIG_H

  7117. #define FFMPEG_CONFIG_H

  7118. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  7119. #define FFMPEG_LICENSE "$(c_escape $license)"

  7120. #define CONFIG_THIS_YEAR 2018

  7121. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  7122. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  7123. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  7124. #define av_restrict $restrict_keyword

  7125. #define EXTERN_PREFIX "${extern_prefix}"

  7126. #define EXTERN_ASM ${extern_prefix}

  7127. #define BUILDSUF "$build_suffix"

  7128. #define SLIBSUF "$SLIBSUF"

  7129. #define HAVE_MMX2 HAVE_MMXEXT

  7130. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  7131. EOF

  7132. 

  7133. test -n "$assert_level" &&

  7134.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  7135. 

  7136. test -n "$malloc_prefix" &&

  7137.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  7138. 

  7139. if enabled x86asm; then

  7140.     append config_files $TMPASM

  7141.     cat > $TMPASM <<EOF

  7142. ; Automatically generated by configure - do not modify!

  7143. EOF

  7144. fi

  7145. 

  7146. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  7147. 

  7148. 

  7149. mkdir -p doc

  7150. mkdir -p tests

  7151. mkdir -p tests/api

  7152. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  7153. 

  7154. print_config ARCH_   "$config_files" $ARCH_LIST

  7155. print_config HAVE_   "$config_files" $HAVE_LIST

  7156. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  7157.                                      $CONFIG_EXTRA      \

  7158.                                      $ALL_COMPONENTS    \

  7159. 

  7160. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  7161. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  7162. 

  7163. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  7164. cp_if_changed $TMPH config.h

  7165. touch ffbuild/.config

  7166. 

  7167. enabled x86asm && cp_if_changed $TMPASM config.asm

  7168. 

  7169. cat > $TMPH <<EOF

  7170. /* Generated by ffmpeg configure */

  7171. #ifndef AVUTIL_AVCONFIG_H

  7172. #define AVUTIL_AVCONFIG_H

  7173. EOF

  7174. 

  7175. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7176. 

  7177. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7178. 

  7179. cp_if_changed $TMPH libavutil/avconfig.h

  7180. 

  7181. full_filter_name(){

  7182.     sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_$1;/\1_$1/p" $source_path/libavfilter/allfilters.c

  7183. }

  7184. 

  7185. # generate the lists of enabled components

  7186. print_enabled_components(){

  7187.     file=$1

  7188.     struct_name=$2

  7189.     name=$3

  7190.     shift 3

  7191.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7192.     for c in $*; do

  7193.         if enabled $c; then

  7194.             case $name in

  7195.                 filter_list)

  7196.                     c=$(full_filter_name $(remove_suffix _filter $c))

  7197.                 ;;

  7198.                 indev_list)

  7199.                     c=$(add_suffix _demuxer $(remove_suffix _indev $c))

  7200.                 ;;

  7201.                 outdev_list)

  7202.                     c=$(add_suffix _muxer $(remove_suffix _outdev $c))

  7203.                 ;;

  7204.             esac

  7205.             printf "    &ff_%s,\n" $c >> $TMPH

  7206.         fi

  7207.     done

  7208.     if [ "$name" = "filter_list" ]; then

  7209.         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do

  7210.             printf "    &ff_%s,\n" $c >> $TMPH

  7211.         done

  7212.     fi

  7213.     echo "    NULL };" >> $TMPH

  7214.     cp_if_changed $TMPH $file

  7215. }

  7216. 

  7217. print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST

  7218. print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST

  7219. print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST

  7220. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7221. print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST

  7222. print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST

  7223. print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST

  7224. print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST

  7225. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7226. 

  7227. # Settings for pkg-config files

  7228. 

  7229. cat > $TMPH <<EOF

  7230. # Automatically generated by configure - do not modify!

  7231. shared=$shared

  7232. build_suffix=$build_suffix

  7233. prefix=$prefix

  7234. libdir=$libdir

  7235. incdir=$incdir

  7236. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7237. source_path=${source_path}

  7238. LIBPREF=${LIBPREF}

  7239. LIBSUF=${LIBSUF}

  7240. extralibs_avutil="$avutil_extralibs"

  7241. extralibs_avcodec="$avcodec_extralibs"

  7242. extralibs_avformat="$avformat_extralibs"

  7243. extralibs_avdevice="$avdevice_extralibs"

  7244. extralibs_avfilter="$avfilter_extralibs"

  7245. extralibs_avresample="$avresample_extralibs"

  7246. extralibs_postproc="$postproc_extralibs"

  7247. extralibs_swscale="$swscale_extralibs"

  7248. extralibs_swresample="$swresample_extralibs"

  7249. EOF

  7250. 

  7251. for lib in $LIBRARY_LIST; do

  7252.     lib_deps="$(eval echo \$${lib}_deps)"

  7253.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7254. done

  7255. 

  7256. cp_if_changed $TMPH ffbuild/config.sh