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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 [no]

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

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

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

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

  290.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

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

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

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

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

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

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

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

  303.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  306.   --disable-xlib           disable xlib [autodetect]

  307.   --disable-zlib           disable zlib [autodetect]

  308. 

  309.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  330. 

  331. Toolchain options:

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

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

  334.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

  347.                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,

  348.                            valgrind-massif, valgrind-memcheck,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  389. 

  390. Advanced options (experts only):

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

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

  393.   --disable-symver         disable symbol versioning

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

  395.   --disable-safe-bitstream-reader

  396.                            disable buffer boundary checking in bitreaders

  397.                            (faster, but may crash)

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

  399. 

  400. Optimization options (experts only):

  401.   --disable-asm            disable all assembly optimizations

  402.   --disable-altivec        disable AltiVec optimizations

  403.   --disable-vsx            disable VSX optimizations

  404.   --disable-power8         disable POWER8 optimizations

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

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

  407.   --disable-mmx            disable MMX optimizations

  408.   --disable-mmxext         disable MMXEXT optimizations

  409.   --disable-sse            disable SSE optimizations

  410.   --disable-sse2           disable SSE2 optimizations

  411.   --disable-sse3           disable SSE3 optimizations

  412.   --disable-ssse3          disable SSSE3 optimizations

  413.   --disable-sse4           disable SSE4 optimizations

  414.   --disable-sse42          disable SSE4.2 optimizations

  415.   --disable-avx            disable AVX optimizations

  416.   --disable-xop            disable XOP optimizations

  417.   --disable-fma3           disable FMA3 optimizations

  418.   --disable-fma4           disable FMA4 optimizations

  419.   --disable-avx2           disable AVX2 optimizations

  420.   --disable-avx512         disable AVX-512 optimizations

  421.   --disable-aesni          disable AESNI optimizations

  422.   --disable-armv5te        disable armv5te optimizations

  423.   --disable-armv6          disable armv6 optimizations

  424.   --disable-armv6t2        disable armv6t2 optimizations

  425.   --disable-vfp            disable VFP optimizations

  426.   --disable-neon           disable NEON optimizations

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

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

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

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

  431.   --disable-msa            disable MSA optimizations

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

  433.   --disable-mmi            disable Loongson SIMD optimizations

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

  435. 

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

  437.   --disable-debug          disable debugging symbols

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

  439.   --disable-optimizations  disable compiler optimizations

  440.   --enable-extra-warnings  enable more compiler warnings

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

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

  443.                            2 causes a slowdown at runtime.

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

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

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

  447.                            Cannot be combined with --target-exec

  448.   --enable-ftrapv          Trap arithmetic overflows

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

  450.                            \$FATE_SAMPLES at make invocation time.

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

  452.                            used only for debugging purposes)

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

  454.                            should be used only for debugging purposes)

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

  456.   --disable-random

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

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

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

  460.                            (group) and PROB the probability associated with

  461.                            NAME (default 0.5).

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

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

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

  465.   --enable-osfuzz          Enable building fuzzer tool

  466.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  470. 

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

  472. EOF

  473.   exit 0

  474. }

  475. 

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

  477.     ncolors=$(tput colors)

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

  479.         bold_color=$(tput bold)

  480.         warn_color=$(tput setaf 3)

  481.         error_color=$(tput setaf 1)

  482.         reset_color=$(tput sgr0)

  483.     fi

  484.     # 72 used instead of 80 since that's the default of pr

  485.     ncols=$(tput cols)

  486. fi

  487. : ${ncols:=72}

  488. 

  489. log(){

  490.     echo "$@" >> $logfile

  491. }

  492. 

  493. log_file(){

  494.     log BEGIN $1

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

  496.     log END $1

  497. }

  498. 

  499. warn(){

  500.     log "WARNING: $*"

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

  502. }

  503. 

  504. die(){

  505.     log "$@"

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

  507.     cat <<EOF

  508. 

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

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

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

  512. EOF

  513.     if disabled logging; then

  514.         cat <<EOF

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

  516. include the log this produces with your report.

  517. EOF

  518.     else

  519.         cat <<EOF

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

  521. solve the problem.

  522. EOF

  523.     fi

  524.     exit 1

  525. }

  526. 

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

  528. toupper(){

  529.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  530. }

  531. 

  532. tolower(){

  533.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  534. }

  535. 

  536. c_escape(){

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

  538. }

  539. 

  540. sh_quote(){

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

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

  543.     echo "$v"

  544. }

  545. 

  546. cleanws(){

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

  548. }

  549. 

  550. filter(){

  551.     pat=$1

  552.     shift

  553.     for v; do

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

  555.     done

  556. }

  557. 

  558. filter_out(){

  559.     pat=$1

  560.     shift

  561.     for v; do

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

  563.     done

  564. }

  565. 

  566. map(){

  567.     m=$1

  568.     shift

  569.     for v; do eval $m; done

  570. }

  571. 

  572. add_suffix(){

  573.     suffix=$1

  574.     shift

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

  576. }

  577. 

  578. remove_suffix(){

  579.     suffix=$1

  580.     shift

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

  582. }

  583. 

  584. set_all(){

  585.     value=$1

  586.     shift

  587.     for var in $*; do

  588.         eval $var=$value

  589.     done

  590. }

  591. 

  592. set_weak(){

  593.     value=$1

  594.     shift

  595.     for var; do

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

  597.     done

  598. }

  599. 

  600. sanitize_var_name(){

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

  602. }

  603. 

  604. set_sanitized(){

  605.     var=$1

  606.     shift

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

  608. }

  609. 

  610. get_sanitized(){

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

  612. }

  613. 

  614. pushvar(){

  615.     for pvar in $*; do

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

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

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

  619.     done

  620. }

  621. 

  622. popvar(){

  623.     for pvar in $*; do

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

  625.         test $level = 0 && continue

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

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

  628.         eval ${pvar}_level=$level

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

  630.     done

  631. }

  632. 

  633. request(){

  634.     for var in $*; do

  635.         eval ${var}_requested=yes

  636.         eval $var=

  637.     done

  638. }

  639. 

  640. enable(){

  641.     set_all yes $*

  642. }

  643. 

  644. disable(){

  645.     set_all no $*

  646. }

  647. 

  648. enable_weak(){

  649.     set_weak yes $*

  650. }

  651. 

  652. disable_weak(){

  653.     set_weak no $*

  654. }

  655. 

  656. enable_sanitized(){

  657.     for var; do

  658.         enable $(sanitize_var_name $var)

  659.     done

  660. }

  661. 

  662. disable_sanitized(){

  663.     for var; do

  664.         disable $(sanitize_var_name $var)

  665.     done

  666. }

  667. 

  668. do_enable_deep(){

  669.     for var; do

  670.         enabled $var && continue

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

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

  673.         pushvar var sgs

  674.         enable_deep $sel

  675.         popvar sgs

  676.         enable_deep_weak $sgs

  677.         popvar var

  678.     done

  679. }

  680. 

  681. enable_deep(){

  682.     do_enable_deep $*

  683.     enable $*

  684. }

  685. 

  686. enable_deep_weak(){

  687.     for var; do

  688.         disabled $var && continue

  689.         pushvar var

  690.         do_enable_deep $var

  691.         popvar var

  692.         enable_weak $var

  693.     done

  694. }

  695. 

  696. requested(){

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

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

  699. }

  700. 

  701. enabled(){

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

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

  704. }

  705. 

  706. disabled(){

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

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

  709. }

  710. 

  711. enabled_all(){

  712.     for opt; do

  713.         enabled $opt || return 1

  714.     done

  715. }

  716. 

  717. disabled_all(){

  718.     for opt; do

  719.         disabled $opt || return 1

  720.     done

  721. }

  722. 

  723. enabled_any(){

  724.     for opt; do

  725.         enabled $opt && return 0

  726.     done

  727. }

  728. 

  729. disabled_any(){

  730.     for opt; do

  731.         disabled $opt && return 0

  732.     done

  733.     return 1

  734. }

  735. 

  736. set_default(){

  737.     for opt; do

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

  739.     done

  740. }

  741. 

  742. is_in(){

  743.     value=$1

  744.     shift

  745.     for var in $*; do

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

  747.     done

  748.     return 1

  749. }

  750. 

  751. check_deps(){

  752.     for cfg; do

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

  754.         disabled ${cfg}_checking && continue

  755.         enable ${cfg}_checking

  756. 

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

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

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

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

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

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

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

  764. 

  765.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  767.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  768. 

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

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

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

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

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

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

  775. 

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

  777. 

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

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

  780.             is_in $dep $LIBRARY_LIST && continue

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

  782.         done

  783. 

  784.         disable ${cfg}_checking

  785.     done

  786. }

  787. 

  788. print_config(){

  789.     pfx=$1

  790.     files=$2

  791.     shift 2

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

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

  794.         {

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

  796.             v = \$2;

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

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

  799.             for (f in files) {

  800.                 file = files[f];

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

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

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

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

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

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

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

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

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

  810.                     yesno = \$2;

  811.                     c2 = tolower(c);

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

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

  814.                 }

  815.             }

  816.         }"

  817. }

  818. 

  819. print_enabled(){

  820.     suf=$1

  821.     shift

  822.     for v; do

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

  824.     done

  825. }

  826. 

  827. append(){

  828.     var=$1

  829.     shift

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

  831. }

  832. 

  833. prepend(){

  834.     var=$1

  835.     shift

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

  837. }

  838. 

  839. unique(){

  840.     var=$1

  841.     uniq_list=""

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

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

  844.     done

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

  846. }

  847. 

  848. resolve(){

  849.     var=$1

  850.     tmpvar=

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

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

  853.     done

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

  855. }

  856. 

  857. add_cppflags(){

  858.     append CPPFLAGS "$@"

  859. }

  860. 

  861. add_cflags(){

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

  863. }

  864. 

  865. add_cflags_headers(){

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

  867. }

  868. 

  869. add_cxxflags(){

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

  871. }

  872. 

  873. add_asflags(){

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

  875. }

  876. 

  877. add_objcflags(){

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

  879. }

  880. 

  881. add_ldflags(){

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

  883. }

  884. 

  885. add_ldexeflags(){

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

  887. }

  888. 

  889. add_ldsoflags(){

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

  891. }

  892. 

  893. add_stripflags(){

  894.     append ASMSTRIPFLAGS "$@"

  895. }

  896. 

  897. add_extralibs(){

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

  899. }

  900. 

  901. add_host_cppflags(){

  902.     append host_cppflags "$@"

  903. }

  904. 

  905. add_host_cflags(){

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

  907. }

  908. 

  909. add_host_ldflags(){

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

  911. }

  912. 

  913. add_compat(){

  914.     append compat_objs $1

  915.     shift

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

  917. }

  918. 

  919. test_cmd(){

  920.     log "$@"

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

  922. }

  923. 

  924. test_stat(){

  925.     log test_stat "$@"

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

  927. }

  928. 

  929. cc_o(){

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

  931. }

  932. 

  933. cc_e(){

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

  935. }

  936. 

  937. test_cc(){

  938.     log test_cc "$@"

  939.     cat > $TMPC

  940.     log_file $TMPC

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

  942. }

  943. 

  944. test_cxx(){

  945.     log test_cxx "$@"

  946.     cat > $TMPCPP

  947.     log_file $TMPCPP

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

  949. }

  950. 

  951. test_objcc(){

  952.     log test_objcc "$@"

  953.     cat > $TMPM

  954.     log_file $TMPM

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

  956. }

  957. 

  958. test_cpp(){

  959.     log test_cpp "$@"

  960.     cat > $TMPC

  961.     log_file $TMPC

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

  963. }

  964. 

  965. as_o(){

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

  967. }

  968. 

  969. test_as(){

  970.     log test_as "$@"

  971.     cat > $TMPS

  972.     log_file $TMPS

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

  974. }

  975. 

  976. x86asm_o(){

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

  978. }

  979. 

  980. test_x86asm(){

  981.     log test_x86asm "$@"

  982.     echo "$1" > $TMPASM

  983.     log_file $TMPASM

  984.     shift

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

  986. }

  987. 

  988. check_cmd(){

  989.     log check_cmd "$@"

  990.     cmd=$1

  991.     disabled $cmd && return

  992.     disable $cmd

  993.     test_cmd $@ && enable $cmd

  994. }

  995. 

  996. check_as(){

  997.     log check_as "$@"

  998.     name=$1

  999.     code=$2

  1000.     shift 2

  1001.     disable $name

  1002.     test_as $@ <<EOF && enable $name

  1003. $code

  1004. EOF

  1005. }

  1006. 

  1007. check_inline_asm(){

  1008.     log check_inline_asm "$@"

  1009.     name="$1"

  1010.     code="$2"

  1011.     shift 2

  1012.     disable $name

  1013.     test_cc "$@" <<EOF && enable $name

  1014. void foo(void){ __asm__ volatile($code); }

  1015. EOF

  1016. }

  1017. 

  1018. check_inline_asm_flags(){

  1019.     log check_inline_asm_flags "$@"

  1020.     name="$1"

  1021.     code="$2"

  1022.     flags=''

  1023.     shift 2

  1024.     while [ "$1" != "" ]; do

  1025.       append flags $1

  1026.       shift

  1027.     done;

  1028.     disable $name

  1029.     cat > $TMPC <<EOF

  1030. void foo(void){ __asm__ volatile($code); }

  1031. EOF

  1032.     log_file $TMPC

  1033.     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&

  1034.     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags

  1035. }

  1036. 

  1037. check_insn(){

  1038.     log check_insn "$@"

  1039.     check_inline_asm ${1}_inline "$2"

  1040.     check_as ${1}_external "$2"

  1041. }

  1042. 

  1043. check_x86asm(){

  1044.     log check_x86asm "$@"

  1045.     name=$1

  1046.     shift

  1047.     disable $name

  1048.     test_x86asm "$@" && enable $name

  1049. }

  1050. 

  1051. ld_o(){

  1052.     eval printf '%s\\n' $LD_O

  1053. }

  1054. 

  1055. test_ld(){

  1056.     log test_ld "$@"

  1057.     type=$1

  1058.     shift 1

  1059.     flags=$(filter_out '-l*|*.so' $@)

  1060.     libs=$(filter '-l*|*.so' $@)

  1061.     test_$type $($cflags_filter $flags) || return

  1062.     flags=$($ldflags_filter $flags)

  1063.     libs=$($ldflags_filter $libs)

  1064.     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1065. }

  1066. 

  1067. check_ld(){

  1068.     log check_ld "$@"

  1069.     type=$1

  1070.     name=$2

  1071.     shift 2

  1072.     disable $name

  1073.     test_ld $type $@ && enable $name

  1074. }

  1075. 

  1076. print_include(){

  1077.     hdr=$1

  1078.     test "${hdr%.h}" = "${hdr}" &&

  1079.         echo "#include $hdr"    ||

  1080.         echo "#include <$hdr>"

  1081. }

  1082. 

  1083. test_code(){

  1084.     log test_code "$@"

  1085.     check=$1

  1086.     headers=$2

  1087.     code=$3

  1088.     shift 3

  1089.     {

  1090.         for hdr in $headers; do

  1091.             print_include $hdr

  1092.         done

  1093.         echo "int main(void) { $code; return 0; }"

  1094.     } | test_$check "$@"

  1095. }

  1096. 

  1097. check_cppflags(){

  1098.     log check_cppflags "$@"

  1099.     test_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1100. #include <stdlib.h>

  1101. EOF

  1102. }

  1103. 

  1104. test_cflags(){

  1105.     log test_cflags "$@"

  1106.     set -- $($cflags_filter "$@")

  1107.     test_cc "$@" <<EOF

  1108. int x;

  1109. EOF

  1110. }

  1111. 

  1112. check_cflags(){

  1113.     log check_cflags "$@"

  1114.     test_cflags "$@" && add_cflags "$@"

  1115. }

  1116. 

  1117. check_cxxflags(){

  1118.     log check_cxxflags "$@"

  1119.     set -- $($cflags_filter "$@")

  1120.     test_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1121. int x;

  1122. EOF

  1123. }

  1124. 

  1125. test_objcflags(){

  1126.     log test_objcflags "$@"

  1127.     set -- $($objcflags_filter "$@")

  1128.     test_objcc "$@" <<EOF

  1129. int x;

  1130. EOF

  1131. }

  1132. 

  1133. check_objcflags(){

  1134.     log check_objcflags "$@"

  1135.     test_objcflags "$@" && add_objcflags "$@"

  1136. }

  1137. 

  1138. test_ldflags(){

  1139.     log test_ldflags "$@"

  1140.     set -- $($ldflags_filter "$@")

  1141.     test_ld "cc" "$@" <<EOF

  1142. int main(void){ return 0; }

  1143. EOF

  1144. }

  1145. 

  1146. check_ldflags(){

  1147.     log check_ldflags "$@"

  1148.     test_ldflags "$@" && add_ldflags "$@"

  1149. }

  1150. 

  1151. test_stripflags(){

  1152.     log test_stripflags "$@"

  1153.     # call test_cc to get a fresh TMPO

  1154.     test_cc <<EOF

  1155. int main(void) { return 0; }

  1156. EOF

  1157.     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1158. }

  1159. 

  1160. check_stripflags(){

  1161.     log check_stripflags "$@"

  1162.     test_stripflags "$@" && add_stripflags "$@"

  1163. }

  1164. 

  1165. check_header(){

  1166.     log check_header "$@"

  1167.     headers=$1

  1168.     shift

  1169.     disable_sanitized $headers

  1170.     {

  1171.         for hdr in $headers; do

  1172.             print_include $hdr

  1173.         done

  1174.         echo "int x;"

  1175.     } | test_cpp "$@" && enable_sanitized $headers

  1176. }

  1177. 

  1178. check_header_objcc(){

  1179.     log check_header_objcc "$@"

  1180.     rm -f -- "$TMPO"

  1181.     header=$1

  1182.     shift

  1183.     disable_sanitized $header

  1184.     {

  1185.        echo "#include <$header>"

  1186.        echo "int main(void) { return 0; }"

  1187.     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header

  1188. }

  1189. 

  1190. check_apple_framework(){

  1191.     log check_apple_framework "$@"

  1192.     framework="$1"

  1193.     name="$(tolower $framework)"

  1194.     header="${framework}/${framework}.h"

  1195.     disable $name

  1196.     check_header_objcc $header &&

  1197.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1198. }

  1199. 

  1200. check_func(){

  1201.     log check_func "$@"

  1202.     func=$1

  1203.     shift

  1204.     disable $func

  1205.     test_ld "cc" "$@" <<EOF && enable $func

  1206. extern int $func();

  1207. int main(void){ $func(); }

  1208. EOF

  1209. }

  1210. 

  1211. check_complexfunc(){

  1212.     log check_complexfunc "$@"

  1213.     func=$1

  1214.     narg=$2

  1215.     shift 2

  1216.     test $narg = 2 && args="f, g" || args="f * I"

  1217.     disable $func

  1218.     test_ld "cc" "$@" <<EOF && enable $func

  1219. #include <complex.h>

  1220. #include <math.h>

  1221. float foo(complex float f, complex float g) { return $func($args); }

  1222. int main(void){ return (int) foo; }

  1223. EOF

  1224. }

  1225. 

  1226. check_mathfunc(){

  1227.     log check_mathfunc "$@"

  1228.     func=$1

  1229.     narg=$2

  1230.     shift 2

  1231.     test $narg = 2 && args="f, g" || args="f"

  1232.     disable $func

  1233.     test_ld "cc" "$@" <<EOF && enable $func

  1234. #include <math.h>

  1235. float foo(float f, float g) { return $func($args); }

  1236. int main(void){ return (int) foo; }

  1237. EOF

  1238. }

  1239. 

  1240. check_func_headers(){

  1241.     log check_func_headers "$@"

  1242.     headers=$1

  1243.     funcs=$2

  1244.     shift 2

  1245.     {

  1246.         for hdr in $headers; do

  1247.             print_include $hdr

  1248.         done

  1249.         echo "#include <stdint.h>"

  1250.         for func in $funcs; do

  1251.             echo "long check_$func(void) { return (long) $func; }"

  1252.         done

  1253.         echo "int main(void) { int ret = 0;"

  1254.         # LTO could optimize out the test functions without this

  1255.         for func in $funcs; do

  1256.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1257.         done

  1258.         echo "return ret; }"

  1259.     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1260. }

  1261. 

  1262. check_class_headers_cpp(){

  1263.     log check_class_headers_cpp "$@"

  1264.     headers=$1

  1265.     classes=$2

  1266.     shift 2

  1267.     {

  1268.         for hdr in $headers; do

  1269.             echo "#include <$hdr>"

  1270.         done

  1271.         echo "int main(void) { "

  1272.         i=1

  1273.         for class in $classes; do

  1274.             echo "$class obj$i;"

  1275.             i=$(expr $i + 1)

  1276.         done

  1277.         echo "return 0; }"

  1278.     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1279. }

  1280. 

  1281. test_cpp_condition(){

  1282.     log test_cpp_condition "$@"

  1283.     header=$1

  1284.     condition=$2

  1285.     shift 2

  1286.     test_cpp "$@" <<EOF

  1287. #include <$header>

  1288. #if !($condition)

  1289. #error "unsatisfied condition: $condition"

  1290. #endif

  1291. EOF

  1292. }

  1293. 

  1294. check_cpp_condition(){

  1295.     log check_cpp_condition "$@"

  1296.     name=$1

  1297.     shift 1

  1298.     disable $name

  1299.     test_cpp_condition "$@" && enable $name

  1300. }

  1301. 

  1302. test_cflags_cc(){

  1303.     log test_cflags_cc "$@"

  1304.     flags=$1

  1305.     header=$2

  1306.     condition=$3

  1307.     shift 3

  1308.     set -- $($cflags_filter "$flags")

  1309.     test_cc "$@" <<EOF

  1310. #include <$header>

  1311. #if !($condition)

  1312. #error "unsatisfied condition: $condition"

  1313. #endif

  1314. EOF

  1315. }

  1316. 

  1317. check_lib(){

  1318.     log check_lib "$@"

  1319.     name="$1"

  1320.     headers="$2"

  1321.     funcs="$3"

  1322.     shift 3

  1323.     disable $name

  1324.     check_func_headers "$headers" "$funcs" "$@" &&

  1325.         enable $name && eval ${name}_extralibs="\$@"

  1326. }

  1327. 

  1328. check_lib_cpp(){

  1329.     log check_lib_cpp "$@"

  1330.     name="$1"

  1331.     headers="$2"

  1332.     classes="$3"

  1333.     shift 3

  1334.     disable $name

  1335.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1336.         enable $name && eval ${name}_extralibs="\$@"

  1337. }

  1338. 

  1339. test_pkg_config(){

  1340.     log test_pkg_config "$@"

  1341.     name="$1"

  1342.     pkg_version="$2"

  1343.     pkg="${2%% *}"

  1344.     headers="$3"

  1345.     funcs="$4"

  1346.     shift 4

  1347.     disable $name

  1348.     test_cmd $pkg_config --exists --print-errors $pkg_version || return

  1349.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1350.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1351.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1352.         enable $name &&

  1353.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1354.         set_sanitized "${name}_extralibs" $pkg_libs

  1355. }

  1356. 

  1357. check_pkg_config(){

  1358.     log check_pkg_config "$@"

  1359.     name="$1"

  1360.     test_pkg_config "$@" &&

  1361.         eval add_cflags \$${name}_cflags

  1362. }

  1363. 

  1364. test_exec(){

  1365.     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1366. }

  1367. 

  1368. check_exec_crash(){

  1369.     log check_exec_crash "$@"

  1370.     code=$(cat)

  1371. 

  1372.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1373.     # are safe but may not be available everywhere.  Thus we use

  1374.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1375.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1376.     # is not defined by standard C so it is used conditionally.

  1377. 

  1378.     (test_exec "$@") >> $logfile 2>&1 <<EOF

  1379. #include <signal.h>

  1380. static void sighandler(int sig){

  1381.     raise(SIGTERM);

  1382. }

  1383. int foo(void){

  1384.     $code

  1385. }

  1386. int (*func_ptr)(void) = foo;

  1387. int main(void){

  1388.     signal(SIGILL, sighandler);

  1389.     signal(SIGFPE, sighandler);

  1390.     signal(SIGSEGV, sighandler);

  1391. #ifdef SIGBUS

  1392.     signal(SIGBUS, sighandler);

  1393. #endif

  1394.     return func_ptr();

  1395. }

  1396. EOF

  1397. }

  1398. 

  1399. check_type(){

  1400.     log check_type "$@"

  1401.     headers=$1

  1402.     type=$2

  1403.     shift 2

  1404.     disable_sanitized "$type"

  1405.     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1406. }

  1407. 

  1408. check_struct(){

  1409.     log check_struct "$@"

  1410.     headers=$1

  1411.     struct=$2

  1412.     member=$3

  1413.     shift 3

  1414.     disable_sanitized "${struct}_${member}"

  1415.     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

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

  1417. }

  1418. 

  1419. check_builtin(){

  1420.     log check_builtin "$@"

  1421.     name=$1

  1422.     headers=$2

  1423.     builtin=$3

  1424.     shift 3

  1425.     disable "$name"

  1426.     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1427. }

  1428. 

  1429. check_compile_assert(){

  1430.     log check_compile_assert "$@"

  1431.     name=$1

  1432.     headers=$2

  1433.     condition=$3

  1434.     shift 3

  1435.     disable "$name"

  1436.     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1437. }

  1438. 

  1439. check_cc(){

  1440.     log check_cc "$@"

  1441.     name=$1

  1442.     shift

  1443.     disable "$name"

  1444.     test_code cc "$@" && enable "$name"

  1445. }

  1446. 

  1447. require(){

  1448.     log require "$@"

  1449.     name_version="$1"

  1450.     name="${1%% *}"

  1451.     shift

  1452.     check_lib $name "$@" || die "ERROR: $name_version not found"

  1453. }

  1454. 

  1455. require_cc(){

  1456.     log require_cc "$@"

  1457.     name="$1"

  1458.     shift

  1459.     test_code cc "$@" || die "ERROR: $name failed"

  1460. }

  1461. 

  1462. require_cpp(){

  1463.     name="$1"

  1464.     headers="$2"

  1465.     classes="$3"

  1466.     shift 3

  1467.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1468. }

  1469. 

  1470. require_header(){

  1471.     log require_header "$@"

  1472.     headers="$1"

  1473.     check_header "$@" || die "ERROR: $headers not found"

  1474. }

  1475. 

  1476. require_cpp_condition(){

  1477.     log require_cpp_condition "$@"

  1478.     condition="$2"

  1479.     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"

  1480. }

  1481. 

  1482. require_pkg_config(){

  1483.     log require_pkg_config "$@"

  1484.     pkg_version="$2"

  1485.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1486. }

  1487. 

  1488. hostcc_e(){

  1489.     eval printf '%s\\n' $HOSTCC_E

  1490. }

  1491. 

  1492. hostcc_o(){

  1493.     eval printf '%s\\n' $HOSTCC_O

  1494. }

  1495. 

  1496. test_host_cc(){

  1497.     log test_host_cc "$@"

  1498.     cat > $TMPC

  1499.     log_file $TMPC

  1500.     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1501. }

  1502. 

  1503. test_host_cpp(){

  1504.     log test_host_cpp "$@"

  1505.     cat > $TMPC

  1506.     log_file $TMPC

  1507.     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1508. }

  1509. 

  1510. check_host_cppflags(){

  1511.     log check_host_cppflags "$@"

  1512.     test_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1513. #include <stdlib.h>

  1514. EOF

  1515. }

  1516. 

  1517. check_host_cflags(){

  1518.     log check_host_cflags "$@"

  1519.     set -- $($host_cflags_filter "$@")

  1520.     test_host_cc "$@" <<EOF && append host_cflags "$@"

  1521. int x;

  1522. EOF

  1523. }

  1524. 

  1525. test_host_cpp_condition(){

  1526.     log test_host_cpp_condition "$@"

  1527.     header=$1

  1528.     condition=$2

  1529.     shift 2

  1530.     test_host_cpp "$@" <<EOF

  1531. #include <$header>

  1532. #if !($condition)

  1533. #error "unsatisfied condition: $condition"

  1534. #endif

  1535. EOF

  1536. }

  1537. 

  1538. check_host_cpp_condition(){

  1539.     log check_host_cpp_condition "$@"

  1540.     name=$1

  1541.     shift 1

  1542.     disable $name

  1543.     test_host_cpp_condition "$@" && enable $name

  1544. }

  1545. 

  1546. cp_if_changed(){

  1547.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1548.     mkdir -p "$(dirname $2)"

  1549.     cp -f "$1" "$2"

  1550. }

  1551. 

  1552. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1553. # system-dependent things.

  1554. 

  1555. AVCODEC_COMPONENTS="

  1556.     bsfs

  1557.     decoders

  1558.     encoders

  1559.     hwaccels

  1560.     parsers

  1561. "

  1562. 

  1563. AVDEVICE_COMPONENTS="

  1564.     indevs

  1565.     outdevs

  1566. "

  1567. 

  1568. AVFILTER_COMPONENTS="

  1569.     filters

  1570. "

  1571. 

  1572. AVFORMAT_COMPONENTS="

  1573.     demuxers

  1574.     muxers

  1575.     protocols

  1576. "

  1577. 

  1578. COMPONENT_LIST="

  1579.     $AVCODEC_COMPONENTS

  1580.     $AVDEVICE_COMPONENTS

  1581.     $AVFILTER_COMPONENTS

  1582.     $AVFORMAT_COMPONENTS

  1583. "

  1584. 

  1585. EXAMPLE_LIST="

  1586.     avio_dir_cmd_example

  1587.     avio_reading_example

  1588.     decode_audio_example

  1589.     decode_video_example

  1590.     demuxing_decoding_example

  1591.     encode_audio_example

  1592.     encode_video_example

  1593.     extract_mvs_example

  1594.     filter_audio_example

  1595.     filtering_audio_example

  1596.     filtering_video_example

  1597.     http_multiclient_example

  1598.     hw_decode_example

  1599.     metadata_example

  1600.     muxing_example

  1601.     qsvdec_example

  1602.     remuxing_example

  1603.     resampling_audio_example

  1604.     scaling_video_example

  1605.     transcode_aac_example

  1606.     transcoding_example

  1607.     vaapi_encode_example

  1608.     vaapi_transcode_example

  1609. "

  1610. 

  1611. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1612.     alsa

  1613.     appkit

  1614.     avfoundation

  1615.     bzlib

  1616.     coreimage

  1617.     iconv

  1618.     libxcb

  1619.     libxcb_shm

  1620.     libxcb_shape

  1621.     libxcb_xfixes

  1622.     lzma

  1623.     schannel

  1624.     sdl2

  1625.     securetransport

  1626.     sndio

  1627.     xlib

  1628.     zlib

  1629. "

  1630. 

  1631. EXTERNAL_LIBRARY_GPL_LIST="

  1632.     avisynth

  1633.     frei0r

  1634.     libcdio

  1635.     librubberband

  1636.     libvidstab

  1637.     libx264

  1638.     libx265

  1639.     libxavs

  1640.     libxvid

  1641. "

  1642. 

  1643. EXTERNAL_LIBRARY_NONFREE_LIST="

  1644.     decklink

  1645.     libndi_newtek

  1646.     libfdk_aac

  1647.     openssl

  1648.     libtls

  1649. "

  1650. 

  1651. EXTERNAL_LIBRARY_VERSION3_LIST="

  1652.     gmp

  1653.     libopencore_amrnb

  1654.     libopencore_amrwb

  1655.     libvmaf

  1656.     libvo_amrwbenc

  1657.     rkmpp

  1658. "

  1659. 

  1660. EXTERNAL_LIBRARY_GPLV3_LIST="

  1661.     libsmbclient

  1662. "

  1663. 

  1664. EXTERNAL_LIBRARY_LIST="

  1665.     $EXTERNAL_LIBRARY_GPL_LIST

  1666.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1667.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1668.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1669.     chromaprint

  1670.     gcrypt

  1671.     gnutls

  1672.     jni

  1673.     ladspa

  1674.     libaom

  1675.     libass

  1676.     libbluray

  1677.     libbs2b

  1678.     libcaca

  1679.     libcelt

  1680.     libcodec2

  1681.     libdc1394

  1682.     libdrm

  1683.     libflite

  1684.     libfontconfig

  1685.     libfreetype

  1686.     libfribidi

  1687.     libgme

  1688.     libgsm

  1689.     libiec61883

  1690.     libilbc

  1691.     libjack

  1692.     libkvazaar

  1693.     libmodplug

  1694.     libmp3lame

  1695.     libmysofa

  1696.     libopencv

  1697.     libopenh264

  1698.     libopenjpeg

  1699.     libopenmpt

  1700.     libopus

  1701.     libpulse

  1702.     librsvg

  1703.     librtmp

  1704.     libshine

  1705.     libsmbclient

  1706.     libsnappy

  1707.     libsoxr

  1708.     libspeex

  1709.     libsrt

  1710.     libssh

  1711.     libtesseract

  1712.     libtheora

  1713.     libtwolame

  1714.     libv4l2

  1715.     libvorbis

  1716.     libvpx

  1717.     libwavpack

  1718.     libwebp

  1719.     libxml2

  1720.     libzimg

  1721.     libzmq

  1722.     libzvbi

  1723.     lv2

  1724.     mediacodec

  1725.     openal

  1726.     opengl

  1727. "

  1728. 

  1729. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1730.     amf

  1731.     audiotoolbox

  1732.     crystalhd

  1733.     cuda

  1734.     cuvid

  1735.     d3d11va

  1736.     dxva2

  1737.     ffnvcodec

  1738.     nvdec

  1739.     nvenc

  1740.     vaapi

  1741.     vdpau

  1742.     videotoolbox

  1743.     v4l2_m2m

  1744.     xvmc

  1745. "

  1746. 

  1747. # catchall list of things that require external libs to link

  1748. EXTRALIBS_LIST="

  1749.     cpu_init

  1750.     cws2fws

  1751. "

  1752. 

  1753. HWACCEL_LIBRARY_NONFREE_LIST="

  1754.     cuda_sdk

  1755.     libnpp

  1756. "

  1757. 

  1758. HWACCEL_LIBRARY_LIST="

  1759.     $HWACCEL_LIBRARY_NONFREE_LIST

  1760.     libmfx

  1761.     mmal

  1762.     omx

  1763.     opencl

  1764. "

  1765. 

  1766. DOCUMENT_LIST="

  1767.     doc

  1768.     htmlpages

  1769.     manpages

  1770.     podpages

  1771.     txtpages

  1772. "

  1773. 

  1774. FEATURE_LIST="

  1775.     ftrapv

  1776.     gray

  1777.     hardcoded_tables

  1778.     omx_rpi

  1779.     runtime_cpudetect

  1780.     safe_bitstream_reader

  1781.     shared

  1782.     small

  1783.     static

  1784.     swscale_alpha

  1785. "

  1786. 

  1787. LIBRARY_LIST="

  1788.     avcodec

  1789.     avdevice

  1790.     avfilter

  1791.     avformat

  1792.     avresample

  1793.     avutil

  1794.     postproc

  1795.     swresample

  1796.     swscale

  1797. "

  1798. 

  1799. LICENSE_LIST="

  1800.     gpl

  1801.     nonfree

  1802.     version3

  1803. "

  1804. 

  1805. PROGRAM_LIST="

  1806.     ffplay

  1807.     ffprobe

  1808.     ffmpeg

  1809. "

  1810. 

  1811. SUBSYSTEM_LIST="

  1812.     dct

  1813.     dwt

  1814.     error_resilience

  1815.     faan

  1816.     fast_unaligned

  1817.     fft

  1818.     lsp

  1819.     lzo

  1820.     mdct

  1821.     pixelutils

  1822.     network

  1823.     rdft

  1824. "

  1825. 

  1826. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1827. CONFIG_LIST="

  1828.     $DOCUMENT_LIST

  1829.     $EXAMPLE_LIST

  1830.     $EXTERNAL_LIBRARY_LIST

  1831.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1832.     $HWACCEL_LIBRARY_LIST

  1833.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1834.     $FEATURE_LIST

  1835.     $LICENSE_LIST

  1836.     $LIBRARY_LIST

  1837.     $PROGRAM_LIST

  1838.     $SUBSYSTEM_LIST

  1839.     autodetect

  1840.     fontconfig

  1841.     linux_perf

  1842.     memory_poisoning

  1843.     neon_clobber_test

  1844.     ossfuzz

  1845.     pic

  1846.     thumb

  1847.     valgrind_backtrace

  1848.     xmm_clobber_test

  1849.     $COMPONENT_LIST

  1850. "

  1851. 

  1852. THREADS_LIST="

  1853.     pthreads

  1854.     os2threads

  1855.     w32threads

  1856. "

  1857. 

  1858. ATOMICS_LIST="

  1859.     atomics_gcc

  1860.     atomics_suncc

  1861.     atomics_win32

  1862. "

  1863. 

  1864. AUTODETECT_LIBS="

  1865.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1866.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1867.     $THREADS_LIST

  1868. "

  1869. 

  1870. ARCH_LIST="

  1871.     aarch64

  1872.     alpha

  1873.     arm

  1874.     avr32

  1875.     avr32_ap

  1876.     avr32_uc

  1877.     bfin

  1878.     ia64

  1879.     m68k

  1880.     mips

  1881.     mips64

  1882.     parisc

  1883.     ppc

  1884.     ppc64

  1885.     s390

  1886.     sh4

  1887.     sparc

  1888.     sparc64

  1889.     tilegx

  1890.     tilepro

  1891.     tomi

  1892.     x86

  1893.     x86_32

  1894.     x86_64

  1895. "

  1896. 

  1897. ARCH_EXT_LIST_ARM="

  1898.     armv5te

  1899.     armv6

  1900.     armv6t2

  1901.     armv8

  1902.     neon

  1903.     vfp

  1904.     vfpv3

  1905.     setend

  1906. "

  1907. 

  1908. ARCH_EXT_LIST_MIPS="

  1909.     mipsfpu

  1910.     mips32r2

  1911.     mips32r5

  1912.     mips64r2

  1913.     mips32r6

  1914.     mips64r6

  1915.     mipsdsp

  1916.     mipsdspr2

  1917.     msa

  1918. "

  1919. 

  1920. ARCH_EXT_LIST_LOONGSON="

  1921.     loongson2

  1922.     loongson3

  1923.     mmi

  1924. "

  1925. 

  1926. ARCH_EXT_LIST_X86_SIMD="

  1927.     aesni

  1928.     amd3dnow

  1929.     amd3dnowext

  1930.     avx

  1931.     avx2

  1932.     avx512

  1933.     fma3

  1934.     fma4

  1935.     mmx

  1936.     mmxext

  1937.     sse

  1938.     sse2

  1939.     sse3

  1940.     sse4

  1941.     sse42

  1942.     ssse3

  1943.     xop

  1944. "

  1945. 

  1946. ARCH_EXT_LIST_PPC="

  1947.     altivec

  1948.     dcbzl

  1949.     ldbrx

  1950.     power8

  1951.     ppc4xx

  1952.     vsx

  1953. "

  1954. 

  1955. ARCH_EXT_LIST_X86="

  1956.     $ARCH_EXT_LIST_X86_SIMD

  1957.     cpunop

  1958.     i686

  1959. "

  1960. 

  1961. ARCH_EXT_LIST="

  1962.     $ARCH_EXT_LIST_ARM

  1963.     $ARCH_EXT_LIST_PPC

  1964.     $ARCH_EXT_LIST_X86

  1965.     $ARCH_EXT_LIST_MIPS

  1966.     $ARCH_EXT_LIST_LOONGSON

  1967. "

  1968. 

  1969. ARCH_FEATURES="

  1970.     aligned_stack

  1971.     fast_64bit

  1972.     fast_clz

  1973.     fast_cmov

  1974.     local_aligned

  1975.     simd_align_16

  1976.     simd_align_32

  1977.     simd_align_64

  1978. "

  1979. 

  1980. BUILTIN_LIST="

  1981.     atomic_cas_ptr

  1982.     machine_rw_barrier

  1983.     MemoryBarrier

  1984.     mm_empty

  1985.     rdtsc

  1986.     sem_timedwait

  1987.     sync_val_compare_and_swap

  1988. "

  1989. HAVE_LIST_CMDLINE="

  1990.     inline_asm

  1991.     symver

  1992.     x86asm

  1993. "

  1994. 

  1995. HAVE_LIST_PUB="

  1996.     bigendian

  1997.     fast_unaligned

  1998. "

  1999. 

  2000. HEADERS_LIST="

  2001.     arpa_inet_h

  2002.     asm_types_h

  2003.     cdio_paranoia_h

  2004.     cdio_paranoia_paranoia_h

  2005.     cuda_h

  2006.     dispatch_dispatch_h

  2007.     dev_bktr_ioctl_bt848_h

  2008.     dev_bktr_ioctl_meteor_h

  2009.     dev_ic_bt8xx_h

  2010.     dev_video_bktr_ioctl_bt848_h

  2011.     dev_video_meteor_ioctl_meteor_h

  2012.     direct_h

  2013.     dirent_h

  2014.     dxgidebug_h

  2015.     dxva_h

  2016.     ES2_gl_h

  2017.     gsm_h

  2018.     io_h

  2019.     linux_perf_event_h

  2020.     machine_ioctl_bt848_h

  2021.     machine_ioctl_meteor_h

  2022.     malloc_h

  2023.     opencv2_core_core_c_h

  2024.     OpenGL_gl3_h

  2025.     poll_h

  2026.     sys_param_h

  2027.     sys_resource_h

  2028.     sys_select_h

  2029.     sys_soundcard_h

  2030.     sys_time_h

  2031.     sys_un_h

  2032.     sys_videoio_h

  2033.     termios_h

  2034.     udplite_h

  2035.     unistd_h

  2036.     valgrind_valgrind_h

  2037.     windows_h

  2038.     winsock2_h

  2039. "

  2040. 

  2041. INTRINSICS_LIST="

  2042.     intrinsics_neon

  2043. "

  2044. 

  2045. COMPLEX_FUNCS="

  2046.     cabs

  2047.     cexp

  2048. "

  2049. 

  2050. MATH_FUNCS="

  2051.     atanf

  2052.     atan2f

  2053.     cbrt

  2054.     cbrtf

  2055.     copysign

  2056.     cosf

  2057.     erf

  2058.     exp2

  2059.     exp2f

  2060.     expf

  2061.     hypot

  2062.     isfinite

  2063.     isinf

  2064.     isnan

  2065.     ldexpf

  2066.     llrint

  2067.     llrintf

  2068.     log2

  2069.     log2f

  2070.     log10f

  2071.     lrint

  2072.     lrintf

  2073.     powf

  2074.     rint

  2075.     round

  2076.     roundf

  2077.     sinf

  2078.     trunc

  2079.     truncf

  2080. "

  2081. 

  2082. SYSTEM_FEATURES="

  2083.     dos_paths

  2084.     libc_msvcrt

  2085.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2086.     section_data_rel_ro

  2087.     threads

  2088.     uwp

  2089.     winrt

  2090. "

  2091. 

  2092. SYSTEM_FUNCS="

  2093.     access

  2094.     aligned_malloc

  2095.     arc4random

  2096.     clock_gettime

  2097.     closesocket

  2098.     CommandLineToArgvW

  2099.     fcntl

  2100.     getaddrinfo

  2101.     gethrtime

  2102.     getopt

  2103.     GetProcessAffinityMask

  2104.     GetProcessMemoryInfo

  2105.     GetProcessTimes

  2106.     getrusage

  2107.     GetSystemTimeAsFileTime

  2108.     gettimeofday

  2109.     glob

  2110.     glXGetProcAddress

  2111.     gmtime_r

  2112.     inet_aton

  2113.     isatty

  2114.     kbhit

  2115.     localtime_r

  2116.     lstat

  2117.     lzo1x_999_compress

  2118.     mach_absolute_time

  2119.     MapViewOfFile

  2120.     memalign

  2121.     mkstemp

  2122.     mmap

  2123.     mprotect

  2124.     nanosleep

  2125.     PeekNamedPipe

  2126.     posix_memalign

  2127.     pthread_cancel

  2128.     sched_getaffinity

  2129.     SecItemImport

  2130.     SetConsoleTextAttribute

  2131.     SetConsoleCtrlHandler

  2132.     setmode

  2133.     setrlimit

  2134.     Sleep

  2135.     strerror_r

  2136.     sysconf

  2137.     sysctl

  2138.     usleep

  2139.     UTGetOSTypeFromString

  2140.     VirtualAlloc

  2141.     wglGetProcAddress

  2142. "

  2143. 

  2144. SYSTEM_LIBRARIES="

  2145.     bcrypt

  2146.     vaapi_drm

  2147.     vaapi_x11

  2148.     vdpau_x11

  2149. "

  2150. 

  2151. TOOLCHAIN_FEATURES="

  2152.     as_arch_directive

  2153.     as_dn_directive

  2154.     as_fpu_directive

  2155.     as_func

  2156.     as_object_arch

  2157.     asm_mod_q

  2158.     blocks_extension

  2159.     ebp_available

  2160.     ebx_available

  2161.     gnu_as

  2162.     gnu_windres

  2163.     ibm_asm

  2164.     inline_asm_direct_symbol_refs

  2165.     inline_asm_labels

  2166.     inline_asm_nonlocal_labels

  2167.     pragma_deprecated

  2168.     rsync_contimeout

  2169.     symver_asm_label

  2170.     symver_gnu_asm

  2171.     vfp_args

  2172.     xform_asm

  2173.     xmm_clobbers

  2174. "

  2175. 

  2176. TYPES_LIST="

  2177.     kCMVideoCodecType_HEVC

  2178.     socklen_t

  2179.     struct_addrinfo

  2180.     struct_group_source_req

  2181.     struct_ip_mreq_source

  2182.     struct_ipv6_mreq

  2183.     struct_msghdr_msg_flags

  2184.     struct_pollfd

  2185.     struct_rusage_ru_maxrss

  2186.     struct_sctp_event_subscribe

  2187.     struct_sockaddr_in6

  2188.     struct_sockaddr_sa_len

  2189.     struct_sockaddr_storage

  2190.     struct_stat_st_mtim_tv_nsec

  2191.     struct_v4l2_frmivalenum_discrete

  2192. "

  2193. 

  2194. HAVE_LIST="

  2195.     $ARCH_EXT_LIST

  2196.     $(add_suffix _external $ARCH_EXT_LIST)

  2197.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2198.     $ARCH_FEATURES

  2199.     $BUILTIN_LIST

  2200.     $COMPLEX_FUNCS

  2201.     $HAVE_LIST_CMDLINE

  2202.     $HAVE_LIST_PUB

  2203.     $HEADERS_LIST

  2204.     $INTRINSICS_LIST

  2205.     $MATH_FUNCS

  2206.     $SYSTEM_FEATURES

  2207.     $SYSTEM_FUNCS

  2208.     $SYSTEM_LIBRARIES

  2209.     $THREADS_LIST

  2210.     $TOOLCHAIN_FEATURES

  2211.     $TYPES_LIST

  2212.     makeinfo

  2213.     makeinfo_html

  2214.     opencl_d3d11

  2215.     opencl_drm_arm

  2216.     opencl_drm_beignet

  2217.     opencl_dxva2

  2218.     opencl_vaapi_beignet

  2219.     opencl_vaapi_intel_media

  2220.     perl

  2221.     pod2man

  2222.     texi2html

  2223. "

  2224. 

  2225. # options emitted with CONFIG_ prefix but not available on the command line

  2226. CONFIG_EXTRA="

  2227.     aandcttables

  2228.     ac3dsp

  2229.     adts_header

  2230.     audio_frame_queue

  2231.     audiodsp

  2232.     blockdsp

  2233.     bswapdsp

  2234.     cabac

  2235.     cbs

  2236.     cbs_h264

  2237.     cbs_h265

  2238.     cbs_mpeg2

  2239.     cbs_vp9

  2240.     dirac_parse

  2241.     dvprofile

  2242.     exif

  2243.     faandct

  2244.     faanidct

  2245.     fdctdsp

  2246.     flacdsp

  2247.     fmtconvert

  2248.     frame_thread_encoder

  2249.     g722dsp

  2250.     golomb

  2251.     gplv3

  2252.     h263dsp

  2253.     h264chroma

  2254.     h264dsp

  2255.     h264parse

  2256.     h264pred

  2257.     h264qpel

  2258.     hevcparse

  2259.     hpeldsp

  2260.     huffman

  2261.     huffyuvdsp

  2262.     huffyuvencdsp

  2263.     idctdsp

  2264.     iirfilter

  2265.     mdct15

  2266.     intrax8

  2267.     iso_media

  2268.     ividsp

  2269.     jpegtables

  2270.     lgplv3

  2271.     libx262

  2272.     llauddsp

  2273.     llviddsp

  2274.     llvidencdsp

  2275.     lpc

  2276.     lzf

  2277.     me_cmp

  2278.     mpeg_er

  2279.     mpegaudio

  2280.     mpegaudiodsp

  2281.     mpegaudioheader

  2282.     mpegvideo

  2283.     mpegvideoenc

  2284.     mss34dsp

  2285.     pixblockdsp

  2286.     qpeldsp

  2287.     qsv

  2288.     qsvdec

  2289.     qsvenc

  2290.     qsvvpp

  2291.     rangecoder

  2292.     riffdec

  2293.     riffenc

  2294.     rtpdec

  2295.     rtpenc_chain

  2296.     rv34dsp

  2297.     sinewin

  2298.     snappy

  2299.     srtp

  2300.     startcode

  2301.     texturedsp

  2302.     texturedspenc

  2303.     tpeldsp

  2304.     vaapi_1

  2305.     vaapi_encode

  2306.     vc1dsp

  2307.     videodsp

  2308.     vp3dsp

  2309.     vp56dsp

  2310.     vp8dsp

  2311.     wma_freqs

  2312.     wmv2dsp

  2313. "

  2314. 

  2315. CMDLINE_SELECT="

  2316.     $ARCH_EXT_LIST

  2317.     $CONFIG_LIST

  2318.     $HAVE_LIST_CMDLINE

  2319.     $THREADS_LIST

  2320.     asm

  2321.     cross_compile

  2322.     debug

  2323.     extra_warnings

  2324.     logging

  2325.     lto

  2326.     optimizations

  2327.     rpath

  2328.     stripping

  2329. "

  2330. 

  2331. PATHS_LIST="

  2332.     bindir

  2333.     datadir

  2334.     docdir

  2335.     incdir

  2336.     libdir

  2337.     mandir

  2338.     pkgconfigdir

  2339.     prefix

  2340.     shlibdir

  2341.     install_name_dir

  2342. "

  2343. 

  2344. CMDLINE_SET="

  2345.     $PATHS_LIST

  2346.     ar

  2347.     arch

  2348.     as

  2349.     assert_level

  2350.     build_suffix

  2351.     cc

  2352.     objcc

  2353.     cpu

  2354.     cross_prefix

  2355.     custom_allocator

  2356.     cxx

  2357.     dep_cc

  2358.     doxygen

  2359.     env

  2360.     extra_version

  2361.     gas

  2362.     host_cc

  2363.     host_cflags

  2364.     host_extralibs

  2365.     host_ld

  2366.     host_ldflags

  2367.     host_os

  2368.     ignore_tests

  2369.     install

  2370.     ld

  2371.     ln_s

  2372.     logfile

  2373.     malloc_prefix

  2374.     nm

  2375.     optflags

  2376.     nvcc

  2377.     nvccflags

  2378.     pkg_config

  2379.     pkg_config_flags

  2380.     progs_suffix

  2381.     random_seed

  2382.     ranlib

  2383.     samples

  2384.     strip

  2385.     sws_max_filter_size

  2386.     sysinclude

  2387.     sysroot

  2388.     target_exec

  2389.     target_os

  2390.     target_path

  2391.     target_samples

  2392.     tempprefix

  2393.     toolchain

  2394.     valgrind

  2395.     x86asmexe

  2396. "

  2397. 

  2398. CMDLINE_APPEND="

  2399.     extra_cflags

  2400.     extra_cxxflags

  2401.     extra_objcflags

  2402.     host_cppflags

  2403. "

  2404. 

  2405. # code dependency declarations

  2406. 

  2407. # architecture extensions

  2408. 

  2409. armv5te_deps="arm"

  2410. armv6_deps="arm"

  2411. armv6t2_deps="arm"

  2412. armv8_deps="aarch64"

  2413. neon_deps_any="aarch64 arm"

  2414. intrinsics_neon_deps="neon"

  2415. vfp_deps_any="aarch64 arm"

  2416. vfpv3_deps="vfp"

  2417. setend_deps="arm"

  2418. 

  2419. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2420. 

  2421. altivec_deps="ppc"

  2422. dcbzl_deps="ppc"

  2423. ldbrx_deps="ppc"

  2424. ppc4xx_deps="ppc"

  2425. vsx_deps="altivec"

  2426. power8_deps="vsx"

  2427. 

  2428. loongson2_deps="mips"

  2429. loongson3_deps="mips"

  2430. mips32r2_deps="mips"

  2431. mips32r5_deps="mips"

  2432. mips32r6_deps="mips"

  2433. mips64r2_deps="mips"

  2434. mips64r6_deps="mips"

  2435. mipsfpu_deps="mips"

  2436. mipsdsp_deps="mips"

  2437. mipsdspr2_deps="mips"

  2438. mmi_deps="mips"

  2439. msa_deps="mipsfpu"

  2440. 

  2441. cpunop_deps="i686"

  2442. x86_64_select="i686"

  2443. x86_64_suggest="fast_cmov"

  2444. 

  2445. amd3dnow_deps="mmx"

  2446. amd3dnowext_deps="amd3dnow"

  2447. i686_deps="x86"

  2448. mmx_deps="x86"

  2449. mmxext_deps="mmx"

  2450. sse_deps="mmxext"

  2451. sse2_deps="sse"

  2452. sse3_deps="sse2"

  2453. ssse3_deps="sse3"

  2454. sse4_deps="ssse3"

  2455. sse42_deps="sse4"

  2456. aesni_deps="sse42"

  2457. avx_deps="sse42"

  2458. xop_deps="avx"

  2459. fma3_deps="avx"

  2460. fma4_deps="avx"

  2461. avx2_deps="avx"

  2462. avx512_deps="avx2"

  2463. 

  2464. mmx_external_deps="x86asm"

  2465. mmx_inline_deps="inline_asm x86"

  2466. mmx_suggest="mmx_external mmx_inline"

  2467. 

  2468. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2469.     eval dep=\$${ext}_deps

  2470.     eval ${ext}_external_deps='"${dep}_external"'

  2471.     eval ${ext}_inline_deps='"${dep}_inline"'

  2472.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2473. done

  2474. 

  2475. aligned_stack_if_any="aarch64 ppc x86"

  2476. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2477. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2478. fast_unaligned_if_any="aarch64 ppc x86"

  2479. simd_align_16_if_any="altivec neon sse"

  2480. simd_align_32_if_any="avx"

  2481. simd_align_64_if_any="avx512"

  2482. 

  2483. # system capabilities

  2484. linux_perf_deps="linux_perf_event_h"

  2485. symver_if_any="symver_asm_label symver_gnu_asm"

  2486. valgrind_backtrace_conflict="optimizations"

  2487. valgrind_backtrace_deps="valgrind_valgrind_h"

  2488. 

  2489. # threading support

  2490. atomics_gcc_if="sync_val_compare_and_swap"

  2491. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2492. atomics_win32_if="MemoryBarrier"

  2493. atomics_native_if_any="$ATOMICS_LIST"

  2494. w32threads_deps="atomics_native"

  2495. threads_if_any="$THREADS_LIST"

  2496. 

  2497. # subsystems

  2498. cbs_h264_select="cbs golomb"

  2499. cbs_h265_select="cbs golomb"

  2500. cbs_mpeg2_select="cbs"

  2501. cbs_vp9_select="cbs"

  2502. dct_select="rdft"

  2503. dirac_parse_select="golomb"

  2504. error_resilience_select="me_cmp"

  2505. faandct_deps="faan"

  2506. faandct_select="fdctdsp"

  2507. faanidct_deps="faan"

  2508. faanidct_select="idctdsp"

  2509. h264dsp_select="startcode"

  2510. hevcparse_select="golomb"

  2511. frame_thread_encoder_deps="encoders threads"

  2512. intrax8_select="blockdsp idctdsp"

  2513. mdct_select="fft"

  2514. mdct15_select="fft"

  2515. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2516. mpeg_er_select="error_resilience"

  2517. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2518. mpegaudiodsp_select="dct"

  2519. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2520. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2521. vc1dsp_select="h264chroma qpeldsp startcode"

  2522. rdft_select="fft"

  2523. 

  2524. # decoders / encoders

  2525. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2526. aac_fixed_decoder_select="adts_header mdct sinewin"

  2527. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2528. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2529. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2530. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2531. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2532. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2533. adpcm_g722_decoder_select="g722dsp"

  2534. adpcm_g722_encoder_select="g722dsp"

  2535. aic_decoder_select="golomb idctdsp"

  2536. alac_encoder_select="lpc"

  2537. als_decoder_select="bswapdsp"

  2538. amrnb_decoder_select="lsp"

  2539. amrwb_decoder_select="lsp"

  2540. amv_decoder_select="sp5x_decoder exif"

  2541. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2542. ape_decoder_select="bswapdsp llauddsp"

  2543. apng_decoder_deps="zlib"

  2544. apng_encoder_deps="zlib"

  2545. apng_encoder_select="llvidencdsp"

  2546. aptx_decoder_select="audio_frame_queue"

  2547. aptx_encoder_select="audio_frame_queue"

  2548. aptx_hd_decoder_select="audio_frame_queue"

  2549. aptx_hd_encoder_select="audio_frame_queue"

  2550. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2551. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2552. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2553. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2554. atrac1_decoder_select="mdct sinewin"

  2555. atrac3_decoder_select="mdct"

  2556. atrac3p_decoder_select="mdct sinewin"

  2557. avrn_decoder_select="exif jpegtables"

  2558. bink_decoder_select="blockdsp hpeldsp"

  2559. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2560. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2561. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2562. clearvideo_decoder_select="idctdsp"

  2563. cllc_decoder_select="bswapdsp"

  2564. comfortnoise_encoder_select="lpc"

  2565. cook_decoder_select="audiodsp mdct sinewin"

  2566. cscd_decoder_select="lzo"

  2567. cscd_decoder_suggest="zlib"

  2568. dca_decoder_select="mdct"

  2569. dds_decoder_select="texturedsp"

  2570. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2571. dnxhd_decoder_select="blockdsp idctdsp"

  2572. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2573. dolby_e_decoder_select="mdct"

  2574. dvvideo_decoder_select="dvprofile idctdsp"

  2575. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2576. dxa_decoder_deps="zlib"

  2577. dxv_decoder_select="lzf texturedsp"

  2578. eac3_decoder_select="ac3_decoder"

  2579. eac3_encoder_select="ac3_encoder"

  2580. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2581. eatgq_decoder_select="aandcttables"

  2582. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2583. exr_decoder_deps="zlib"

  2584. ffv1_decoder_select="rangecoder"

  2585. ffv1_encoder_select="rangecoder"

  2586. ffvhuff_decoder_select="huffyuv_decoder"

  2587. ffvhuff_encoder_select="huffyuv_encoder"

  2588. fic_decoder_select="golomb"

  2589. flac_decoder_select="flacdsp"

  2590. flac_encoder_select="bswapdsp flacdsp lpc"

  2591. flashsv2_decoder_deps="zlib"

  2592. flashsv2_encoder_deps="zlib"

  2593. flashsv_decoder_deps="zlib"

  2594. flashsv_encoder_deps="zlib"

  2595. flv_decoder_select="h263_decoder"

  2596. flv_encoder_select="h263_encoder"

  2597. fourxm_decoder_select="blockdsp bswapdsp"

  2598. fraps_decoder_select="bswapdsp huffman"

  2599. g2m_decoder_deps="zlib"

  2600. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2601. g729_decoder_select="audiodsp"

  2602. h261_decoder_select="mpegvideo"

  2603. h261_encoder_select="aandcttables mpegvideoenc"

  2604. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2605. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2606. h263i_decoder_select="h263_decoder"

  2607. h263p_decoder_select="h263_decoder"

  2608. h263p_encoder_select="h263_encoder"

  2609. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2610. h264_decoder_suggest="error_resilience"

  2611. hap_decoder_select="snappy texturedsp"

  2612. hap_encoder_deps="libsnappy"

  2613. hap_encoder_select="texturedspenc"

  2614. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2615. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2616. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2617. iac_decoder_select="imc_decoder"

  2618. imc_decoder_select="bswapdsp fft mdct sinewin"

  2619. indeo3_decoder_select="hpeldsp"

  2620. indeo4_decoder_select="ividsp"

  2621. indeo5_decoder_select="ividsp"

  2622. interplay_video_decoder_select="hpeldsp"

  2623. jpegls_decoder_select="mjpeg_decoder"

  2624. jv_decoder_select="blockdsp"

  2625. lagarith_decoder_select="llviddsp"

  2626. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2627. magicyuv_decoder_select="llviddsp"

  2628. magicyuv_encoder_select="llvidencdsp"

  2629. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2630. metasound_decoder_select="lsp mdct sinewin"

  2631. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2632. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2633. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2634. mjpegb_decoder_select="mjpeg_decoder"

  2635. mlp_decoder_select="mlp_parser"

  2636. mlp_encoder_select="lpc"

  2637. motionpixels_decoder_select="bswapdsp"

  2638. mp1_decoder_select="mpegaudio"

  2639. mp1float_decoder_select="mpegaudio"

  2640. mp2_decoder_select="mpegaudio"

  2641. mp2float_decoder_select="mpegaudio"

  2642. mp3_decoder_select="mpegaudio"

  2643. mp3adu_decoder_select="mpegaudio"

  2644. mp3adufloat_decoder_select="mpegaudio"

  2645. mp3float_decoder_select="mpegaudio"

  2646. mp3on4_decoder_select="mpegaudio"

  2647. mp3on4float_decoder_select="mpegaudio"

  2648. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2649. mpc8_decoder_select="mpegaudiodsp"

  2650. mpegvideo_decoder_select="mpegvideo"

  2651. mpeg1video_decoder_select="mpegvideo"

  2652. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2653. mpeg2video_decoder_select="mpegvideo"

  2654. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2655. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2656. mpeg4_encoder_select="h263_encoder"

  2657. msa1_decoder_select="mss34dsp"

  2658. mscc_decoder_deps="zlib"

  2659. msmpeg4v1_decoder_select="h263_decoder"

  2660. msmpeg4v2_decoder_select="h263_decoder"

  2661. msmpeg4v2_encoder_select="h263_encoder"

  2662. msmpeg4v3_decoder_select="h263_decoder"

  2663. msmpeg4v3_encoder_select="h263_encoder"

  2664. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2665. mts2_decoder_select="mss34dsp"

  2666. mxpeg_decoder_select="mjpeg_decoder"

  2667. nellymoser_decoder_select="mdct sinewin"

  2668. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2669. nuv_decoder_select="idctdsp lzo"

  2670. on2avc_decoder_select="mdct"

  2671. opus_decoder_deps="swresample"

  2672. opus_decoder_select="mdct15"

  2673. opus_encoder_select="audio_frame_queue mdct15"

  2674. png_decoder_deps="zlib"

  2675. png_encoder_deps="zlib"

  2676. png_encoder_select="llvidencdsp"

  2677. prores_decoder_select="blockdsp idctdsp"

  2678. prores_encoder_select="fdctdsp"

  2679. qcelp_decoder_select="lsp"

  2680. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2681. ra_144_decoder_select="audiodsp"

  2682. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2683. ralf_decoder_select="golomb"

  2684. rawvideo_decoder_select="bswapdsp"

  2685. rscc_decoder_deps="zlib"

  2686. rtjpeg_decoder_select="me_cmp"

  2687. rv10_decoder_select="h263_decoder"

  2688. rv10_encoder_select="h263_encoder"

  2689. rv20_decoder_select="h263_decoder"

  2690. rv20_encoder_select="h263_encoder"

  2691. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2692. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2693. screenpresso_decoder_deps="zlib"

  2694. shorten_decoder_select="bswapdsp"

  2695. sipr_decoder_select="lsp"

  2696. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2697. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2698. sonic_decoder_select="golomb rangecoder"

  2699. sonic_encoder_select="golomb rangecoder"

  2700. sonic_ls_encoder_select="golomb rangecoder"

  2701. sp5x_decoder_select="mjpeg_decoder"

  2702. srgc_decoder_deps="zlib"

  2703. svq1_decoder_select="hpeldsp"

  2704. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2705. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2706. svq3_decoder_suggest="zlib"

  2707. tak_decoder_select="audiodsp"

  2708. tdsc_decoder_deps="zlib"

  2709. tdsc_decoder_select="mjpeg_decoder"

  2710. theora_decoder_select="vp3_decoder"

  2711. thp_decoder_select="mjpeg_decoder"

  2712. tiff_decoder_suggest="zlib lzma"

  2713. tiff_encoder_suggest="zlib"

  2714. truehd_decoder_select="mlp_parser"

  2715. truehd_encoder_select="lpc"

  2716. truemotion2_decoder_select="bswapdsp"

  2717. truespeech_decoder_select="bswapdsp"

  2718. tscc_decoder_deps="zlib"

  2719. twinvq_decoder_select="mdct lsp sinewin"

  2720. txd_decoder_select="texturedsp"

  2721. utvideo_decoder_select="bswapdsp llviddsp"

  2722. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2723. vble_decoder_select="llviddsp"

  2724. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2725. vc1image_decoder_select="vc1_decoder"

  2726. vorbis_decoder_select="mdct"

  2727. vorbis_encoder_select="audio_frame_queue mdct"

  2728. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2729. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2730. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2731. vp6a_decoder_select="vp6_decoder"

  2732. vp6f_decoder_select="vp6_decoder"

  2733. vp7_decoder_select="h264pred videodsp vp8dsp"

  2734. vp8_decoder_select="h264pred videodsp vp8dsp"

  2735. vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"

  2736. webp_decoder_select="vp8_decoder exif"

  2737. wmalossless_decoder_select="llauddsp"

  2738. wmapro_decoder_select="mdct sinewin wma_freqs"

  2739. wmav1_decoder_select="mdct sinewin wma_freqs"

  2740. wmav1_encoder_select="mdct sinewin wma_freqs"

  2741. wmav2_decoder_select="mdct sinewin wma_freqs"

  2742. wmav2_encoder_select="mdct sinewin wma_freqs"

  2743. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2744. wmv1_decoder_select="h263_decoder"

  2745. wmv1_encoder_select="h263_encoder"

  2746. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2747. wmv2_encoder_select="h263_encoder wmv2dsp"

  2748. wmv3_decoder_select="vc1_decoder"

  2749. wmv3image_decoder_select="wmv3_decoder"

  2750. xma1_decoder_select="wmapro_decoder"

  2751. xma2_decoder_select="wmapro_decoder"

  2752. zerocodec_decoder_deps="zlib"

  2753. zlib_decoder_deps="zlib"

  2754. zlib_encoder_deps="zlib"

  2755. zmbv_decoder_deps="zlib"

  2756. zmbv_encoder_deps="zlib"

  2757. 

  2758. # hardware accelerators

  2759. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2760. cuda_deps="ffnvcodec"

  2761. cuvid_deps="ffnvcodec"

  2762. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2763. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2764. ffnvcodec_deps_any="libdl LoadLibrary"

  2765. nvdec_deps="ffnvcodec"

  2766. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2767. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2768. xvmc_deps="X11_extensions_XvMClib_h"

  2769. 

  2770. h263_vaapi_hwaccel_deps="vaapi"

  2771. h263_vaapi_hwaccel_select="h263_decoder"

  2772. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2773. h263_videotoolbox_hwaccel_select="h263_decoder"

  2774. h264_d3d11va_hwaccel_deps="d3d11va"

  2775. h264_d3d11va_hwaccel_select="h264_decoder"

  2776. h264_d3d11va2_hwaccel_deps="d3d11va"

  2777. h264_d3d11va2_hwaccel_select="h264_decoder"

  2778. h264_dxva2_hwaccel_deps="dxva2"

  2779. h264_dxva2_hwaccel_select="h264_decoder"

  2780. h264_nvdec_hwaccel_deps="nvdec"

  2781. h264_nvdec_hwaccel_select="h264_decoder"

  2782. h264_vaapi_hwaccel_deps="vaapi"

  2783. h264_vaapi_hwaccel_select="h264_decoder"

  2784. h264_vdpau_hwaccel_deps="vdpau"

  2785. h264_vdpau_hwaccel_select="h264_decoder"

  2786. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2787. h264_videotoolbox_hwaccel_select="h264_decoder"

  2788. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2789. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2790. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2791. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2792. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2793. hevc_dxva2_hwaccel_select="hevc_decoder"

  2794. hevc_nvdec_hwaccel_deps="nvdec"

  2795. hevc_nvdec_hwaccel_select="hevc_decoder"

  2796. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2797. hevc_vaapi_hwaccel_select="hevc_decoder"

  2798. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2799. hevc_vdpau_hwaccel_select="hevc_decoder"

  2800. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2801. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2802. mjpeg_nvdec_hwaccel_deps="nvdec"

  2803. mjpeg_nvdec_hwaccel_select="mjpeg_decoder"

  2804. mjpeg_vaapi_hwaccel_deps="vaapi"

  2805. mjpeg_vaapi_hwaccel_select="mjpeg_decoder"

  2806. mpeg_xvmc_hwaccel_deps="xvmc"

  2807. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2808. mpeg1_nvdec_hwaccel_deps="nvdec"

  2809. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2810. mpeg1_vdpau_hwaccel_deps="vdpau"

  2811. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2812. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2813. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2814. mpeg1_xvmc_hwaccel_deps="xvmc"

  2815. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2816. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2817. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2818. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2819. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2820. mpeg2_dxva2_hwaccel_deps="dxva2"

  2821. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2822. mpeg2_nvdec_hwaccel_deps="nvdec"

  2823. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2824. mpeg2_vaapi_hwaccel_deps="vaapi"

  2825. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2826. mpeg2_vdpau_hwaccel_deps="vdpau"

  2827. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2828. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2829. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2830. mpeg2_xvmc_hwaccel_deps="xvmc"

  2831. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2832. mpeg4_nvdec_hwaccel_deps="nvdec"

  2833. mpeg4_nvdec_hwaccel_select="mpeg4_decoder"

  2834. mpeg4_vaapi_hwaccel_deps="vaapi"

  2835. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2836. mpeg4_vdpau_hwaccel_deps="vdpau"

  2837. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2838. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2839. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2840. vc1_d3d11va_hwaccel_deps="d3d11va"

  2841. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2842. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2843. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2844. vc1_dxva2_hwaccel_deps="dxva2"

  2845. vc1_dxva2_hwaccel_select="vc1_decoder"

  2846. vc1_nvdec_hwaccel_deps="nvdec"

  2847. vc1_nvdec_hwaccel_select="vc1_decoder"

  2848. vc1_vaapi_hwaccel_deps="vaapi"

  2849. vc1_vaapi_hwaccel_select="vc1_decoder"

  2850. vc1_vdpau_hwaccel_deps="vdpau"

  2851. vc1_vdpau_hwaccel_select="vc1_decoder"

  2852. vp8_nvdec_hwaccel_deps="nvdec"

  2853. vp8_nvdec_hwaccel_select="vp8_decoder"

  2854. vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"

  2855. vp8_vaapi_hwaccel_select="vp8_decoder"

  2856. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2857. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2858. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2859. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2860. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2861. vp9_dxva2_hwaccel_select="vp9_decoder"

  2862. vp9_nvdec_hwaccel_deps="nvdec"

  2863. vp9_nvdec_hwaccel_select="vp9_decoder"

  2864. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2865. vp9_vaapi_hwaccel_select="vp9_decoder"

  2866. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2867. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2868. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2869. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2870. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2871. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2872. 

  2873. # hardware-accelerated codecs

  2874. omx_deps="libdl pthreads"

  2875. omx_rpi_select="omx"

  2876. qsv_deps="libmfx"

  2877. qsvdec_select="qsv"

  2878. qsvenc_select="qsv"

  2879. qsvvpp_select="qsv"

  2880. vaapi_encode_deps="vaapi"

  2881. v4l2_m2m_deps="linux_videodev2_h sem_timedwait"

  2882. 

  2883. hwupload_cuda_filter_deps="ffnvcodec"

  2884. scale_npp_filter_deps="ffnvcodec libnpp"

  2885. scale_cuda_filter_deps="cuda_sdk"

  2886. thumbnail_cuda_filter_deps="cuda_sdk"

  2887. 

  2888. amf_deps_any="libdl LoadLibrary"

  2889. nvenc_deps="ffnvcodec"

  2890. nvenc_deps_any="libdl LoadLibrary"

  2891. nvenc_encoder_deps="nvenc"

  2892. 

  2893. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2894. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2895. h264_amf_encoder_deps="amf"

  2896. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2897. h264_cuvid_decoder_deps="cuvid"

  2898. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2899. h264_mediacodec_decoder_deps="mediacodec"

  2900. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2901. h264_mmal_decoder_deps="mmal"

  2902. h264_nvenc_encoder_deps="nvenc"

  2903. h264_omx_encoder_deps="omx"

  2904. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"

  2905. h264_qsv_encoder_select="qsvenc"

  2906. h264_rkmpp_decoder_deps="rkmpp"

  2907. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2908. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2909. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2910. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2911. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2912. hevc_amf_encoder_deps="amf"

  2913. hevc_cuvid_decoder_deps="cuvid"

  2914. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2915. hevc_mediacodec_decoder_deps="mediacodec"

  2916. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2917. hevc_nvenc_encoder_deps="nvenc"

  2918. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"

  2919. hevc_qsv_encoder_select="hevcparse qsvenc"

  2920. hevc_rkmpp_decoder_deps="rkmpp"

  2921. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2922. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2923. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2924. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2925. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2926. mjpeg_cuvid_decoder_deps="cuvid"

  2927. mjpeg_qsv_encoder_deps="libmfx"

  2928. mjpeg_qsv_encoder_select="qsvenc"

  2929. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2930. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2931. mpeg1_cuvid_decoder_deps="cuvid"

  2932. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2933. mpeg2_crystalhd_decoder_select="crystalhd"

  2934. mpeg2_cuvid_decoder_deps="cuvid"

  2935. mpeg2_mmal_decoder_deps="mmal"

  2936. mpeg2_mediacodec_decoder_deps="mediacodec"

  2937. mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"

  2938. mpeg2_qsv_encoder_select="qsvenc"

  2939. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2940. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2941. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2942. mpeg4_crystalhd_decoder_select="crystalhd"

  2943. mpeg4_cuvid_decoder_deps="cuvid"

  2944. mpeg4_mediacodec_decoder_deps="mediacodec"

  2945. mpeg4_mmal_decoder_deps="mmal"

  2946. mpeg4_omx_encoder_deps="omx"

  2947. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2948. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2949. msmpeg4_crystalhd_decoder_select="crystalhd"

  2950. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2951. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2952. vc1_crystalhd_decoder_select="crystalhd"

  2953. vc1_cuvid_decoder_deps="cuvid"

  2954. vc1_mmal_decoder_deps="mmal"

  2955. vc1_qsv_decoder_select="qsvdec vc1_parser"

  2956. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2957. vp8_cuvid_decoder_deps="cuvid"

  2958. vp8_mediacodec_decoder_deps="mediacodec"

  2959. vp8_qsv_decoder_select="qsvdec vp8_parser"

  2960. vp8_rkmpp_decoder_deps="rkmpp"

  2961. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2962. vp8_vaapi_encoder_select="vaapi_encode"

  2963. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2964. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2965. vp9_cuvid_decoder_deps="cuvid"

  2966. vp9_mediacodec_decoder_deps="mediacodec"

  2967. vp9_rkmpp_decoder_deps="rkmpp"

  2968. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2969. vp9_vaapi_encoder_select="vaapi_encode"

  2970. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2971. wmv3_crystalhd_decoder_select="crystalhd"

  2972. 

  2973. # parsers

  2974. aac_parser_select="adts_header"

  2975. h264_parser_select="golomb h264dsp h264parse"

  2976. hevc_parser_select="hevcparse"

  2977. mpegaudio_parser_select="mpegaudioheader"

  2978. mpegvideo_parser_select="mpegvideo"

  2979. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2980. vc1_parser_select="vc1dsp"

  2981. 

  2982. # bitstream_filters

  2983. aac_adtstoasc_bsf_select="adts_header"

  2984. filter_units_bsf_select="cbs"

  2985. h264_metadata_bsf_deps="const_nan"

  2986. h264_metadata_bsf_select="cbs_h264"

  2987. h264_redundant_pps_bsf_select="cbs_h264"

  2988. hevc_metadata_bsf_select="cbs_h265"

  2989. mjpeg2jpeg_bsf_select="jpegtables"

  2990. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2991. trace_headers_bsf_select="cbs"

  2992. 

  2993. # external libraries

  2994. aac_at_decoder_deps="audiotoolbox"

  2995. aac_at_decoder_select="aac_adtstoasc_bsf"

  2996. ac3_at_decoder_deps="audiotoolbox"

  2997. ac3_at_decoder_select="ac3_parser"

  2998. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2999. alac_at_decoder_deps="audiotoolbox"

  3000. amr_nb_at_decoder_deps="audiotoolbox"

  3001. avisynth_deps_any="libdl LoadLibrary"

  3002. avisynth_demuxer_deps="avisynth"

  3003. avisynth_demuxer_select="riffdec"

  3004. eac3_at_decoder_deps="audiotoolbox"

  3005. eac3_at_decoder_select="ac3_parser"

  3006. gsm_ms_at_decoder_deps="audiotoolbox"

  3007. ilbc_at_decoder_deps="audiotoolbox"

  3008. mp1_at_decoder_deps="audiotoolbox"

  3009. mp2_at_decoder_deps="audiotoolbox"

  3010. mp3_at_decoder_deps="audiotoolbox"

  3011. mp1_at_decoder_select="mpegaudioheader"

  3012. mp2_at_decoder_select="mpegaudioheader"

  3013. mp3_at_decoder_select="mpegaudioheader"

  3014. pcm_alaw_at_decoder_deps="audiotoolbox"

  3015. pcm_mulaw_at_decoder_deps="audiotoolbox"

  3016. qdmc_at_decoder_deps="audiotoolbox"

  3017. qdm2_at_decoder_deps="audiotoolbox"

  3018. aac_at_encoder_deps="audiotoolbox"

  3019. aac_at_encoder_select="audio_frame_queue"

  3020. alac_at_encoder_deps="audiotoolbox"

  3021. alac_at_encoder_select="audio_frame_queue"

  3022. ilbc_at_encoder_deps="audiotoolbox"

  3023. ilbc_at_encoder_select="audio_frame_queue"

  3024. pcm_alaw_at_encoder_deps="audiotoolbox"

  3025. pcm_alaw_at_encoder_select="audio_frame_queue"

  3026. pcm_mulaw_at_encoder_deps="audiotoolbox"

  3027. pcm_mulaw_at_encoder_select="audio_frame_queue"

  3028. chromaprint_muxer_deps="chromaprint"

  3029. h264_videotoolbox_encoder_deps="pthreads"

  3030. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  3031. hevc_videotoolbox_encoder_deps="pthreads"

  3032. hevc_videotoolbox_encoder_select="videotoolbox_encoder"

  3033. libaom_av1_decoder_deps="libaom"

  3034. libaom_av1_encoder_deps="libaom"

  3035. libcelt_decoder_deps="libcelt"

  3036. libcodec2_decoder_deps="libcodec2"

  3037. libcodec2_encoder_deps="libcodec2"

  3038. libfdk_aac_decoder_deps="libfdk_aac"

  3039. libfdk_aac_encoder_deps="libfdk_aac"

  3040. libfdk_aac_encoder_select="audio_frame_queue"

  3041. libgme_demuxer_deps="libgme"

  3042. libgsm_decoder_deps="libgsm"

  3043. libgsm_encoder_deps="libgsm"

  3044. libgsm_ms_decoder_deps="libgsm"

  3045. libgsm_ms_encoder_deps="libgsm"

  3046. libilbc_decoder_deps="libilbc"

  3047. libilbc_encoder_deps="libilbc"

  3048. libkvazaar_encoder_deps="libkvazaar"

  3049. libmodplug_demuxer_deps="libmodplug"

  3050. libmp3lame_encoder_deps="libmp3lame"

  3051. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  3052. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  3053. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  3054. libopencore_amrnb_encoder_select="audio_frame_queue"

  3055. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  3056. libopenh264_decoder_deps="libopenh264"

  3057. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  3058. libopenh264_encoder_deps="libopenh264"

  3059. libopenjpeg_decoder_deps="libopenjpeg"

  3060. libopenjpeg_encoder_deps="libopenjpeg"

  3061. libopenmpt_demuxer_deps="libopenmpt"

  3062. libopus_decoder_deps="libopus"

  3063. libopus_encoder_deps="libopus"

  3064. libopus_encoder_select="audio_frame_queue"

  3065. librsvg_decoder_deps="librsvg"

  3066. libshine_encoder_deps="libshine"

  3067. libshine_encoder_select="audio_frame_queue"

  3068. libspeex_decoder_deps="libspeex"

  3069. libspeex_encoder_deps="libspeex"

  3070. libspeex_encoder_select="audio_frame_queue"

  3071. libtheora_encoder_deps="libtheora"

  3072. libtwolame_encoder_deps="libtwolame"

  3073. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  3074. libvorbis_decoder_deps="libvorbis"

  3075. libvorbis_encoder_deps="libvorbis libvorbisenc"

  3076. libvorbis_encoder_select="audio_frame_queue"

  3077. libvpx_vp8_decoder_deps="libvpx"

  3078. libvpx_vp8_encoder_deps="libvpx"

  3079. libvpx_vp9_decoder_deps="libvpx"

  3080. libvpx_vp9_encoder_deps="libvpx"

  3081. libwavpack_encoder_deps="libwavpack"

  3082. libwavpack_encoder_select="audio_frame_queue"

  3083. libwebp_encoder_deps="libwebp"

  3084. libwebp_anim_encoder_deps="libwebp"

  3085. libx262_encoder_deps="libx262"

  3086. libx264_encoder_deps="libx264"

  3087. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  3088. libx264rgb_encoder_select="libx264_encoder"

  3089. libx265_encoder_deps="libx265"

  3090. libxavs_encoder_deps="libxavs"

  3091. libxvid_encoder_deps="libxvid"

  3092. libzvbi_teletext_decoder_deps="libzvbi"

  3093. videotoolbox_suggest="coreservices"

  3094. videotoolbox_deps="corefoundation coremedia corevideo"

  3095. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  3096. 

  3097. # demuxers / muxers

  3098. ac3_demuxer_select="ac3_parser"

  3099. aiff_muxer_select="iso_media"

  3100. asf_demuxer_select="riffdec"

  3101. asf_o_demuxer_select="riffdec"

  3102. asf_muxer_select="riffenc"

  3103. asf_stream_muxer_select="asf_muxer"

  3104. avi_demuxer_select="iso_media riffdec exif"

  3105. avi_muxer_select="riffenc"

  3106. caf_demuxer_select="iso_media riffdec"

  3107. caf_muxer_select="iso_media"

  3108. dash_muxer_select="mp4_muxer"

  3109. dash_demuxer_deps="libxml2"

  3110. dirac_demuxer_select="dirac_parser"

  3111. dts_demuxer_select="dca_parser"

  3112. dtshd_demuxer_select="dca_parser"

  3113. dv_demuxer_select="dvprofile"

  3114. dv_muxer_select="dvprofile"

  3115. dxa_demuxer_select="riffdec"

  3116. eac3_demuxer_select="ac3_parser"

  3117. f4v_muxer_select="mov_muxer"

  3118. fifo_muxer_deps="threads"

  3119. flac_demuxer_select="flac_parser"

  3120. hds_muxer_select="flv_muxer"

  3121. hls_muxer_select="mpegts_muxer"

  3122. hls_muxer_suggest="gcrypt openssl"

  3123. image2_alias_pix_demuxer_select="image2_demuxer"

  3124. image2_brender_pix_demuxer_select="image2_demuxer"

  3125. ipod_muxer_select="mov_muxer"

  3126. ismv_muxer_select="mov_muxer"

  3127. matroska_audio_muxer_select="matroska_muxer"

  3128. matroska_demuxer_select="iso_media riffdec"

  3129. matroska_demuxer_suggest="bzlib lzo zlib"

  3130. matroska_muxer_select="iso_media riffenc"

  3131. mmf_muxer_select="riffenc"

  3132. mov_demuxer_select="iso_media riffdec"

  3133. mov_demuxer_suggest="zlib"

  3134. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3135. mp3_demuxer_select="mpegaudio_parser"

  3136. mp3_muxer_select="mpegaudioheader"

  3137. mp4_muxer_select="mov_muxer"

  3138. mpegts_demuxer_select="iso_media"

  3139. mpegts_muxer_select="adts_muxer latm_muxer"

  3140. mpegtsraw_demuxer_select="mpegts_demuxer"

  3141. mxf_d10_muxer_select="mxf_muxer"

  3142. mxf_opatom_muxer_select="mxf_muxer"

  3143. nut_muxer_select="riffenc"

  3144. nuv_demuxer_select="riffdec"

  3145. oga_muxer_select="ogg_muxer"

  3146. ogg_demuxer_select="dirac_parse"

  3147. ogv_muxer_select="ogg_muxer"

  3148. opus_muxer_select="ogg_muxer"

  3149. psp_muxer_select="mov_muxer"

  3150. rtp_demuxer_select="sdp_demuxer"

  3151. rtp_muxer_select="golomb"

  3152. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3153. rtsp_demuxer_select="http_protocol rtpdec"

  3154. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3155. sap_demuxer_select="sdp_demuxer"

  3156. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3157. sdp_demuxer_select="rtpdec"

  3158. smoothstreaming_muxer_select="ismv_muxer"

  3159. spdif_demuxer_select="adts_header"

  3160. spdif_muxer_select="adts_header"

  3161. spx_muxer_select="ogg_muxer"

  3162. swf_demuxer_suggest="zlib"

  3163. tak_demuxer_select="tak_parser"

  3164. tg2_muxer_select="mov_muxer"

  3165. tgp_muxer_select="mov_muxer"

  3166. vobsub_demuxer_select="mpegps_demuxer"

  3167. w64_demuxer_select="wav_demuxer"

  3168. w64_muxer_select="wav_muxer"

  3169. wav_demuxer_select="riffdec"

  3170. wav_muxer_select="riffenc"

  3171. webm_muxer_select="iso_media riffenc"

  3172. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3173. wtv_demuxer_select="mpegts_demuxer riffdec"

  3174. wtv_muxer_select="mpegts_muxer riffenc"

  3175. xmv_demuxer_select="riffdec"

  3176. xwma_demuxer_select="riffdec"

  3177. 

  3178. # indevs / outdevs

  3179. android_camera_indev_deps="android camera2ndk mediandk pthreads"

  3180. android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"

  3181. alsa_indev_deps="alsa"

  3182. alsa_outdev_deps="alsa"

  3183. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3184. avfoundation_indev_suggest="coregraphics applicationservices"

  3185. avfoundation_indev_extralibs="-framework Foundation"

  3186. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3187. caca_outdev_deps="libcaca"

  3188. decklink_deps_any="libdl LoadLibrary"

  3189. decklink_indev_deps="decklink threads"

  3190. decklink_indev_extralibs="-lstdc++"

  3191. decklink_outdev_deps="decklink threads"

  3192. decklink_outdev_extralibs="-lstdc++"

  3193. libndi_newtek_indev_deps="libndi_newtek"

  3194. libndi_newtek_indev_extralibs="-lndi"

  3195. libndi_newtek_outdev_deps="libndi_newtek"

  3196. libndi_newtek_outdev_extralibs="-lndi"

  3197. dshow_indev_deps="IBaseFilter"

  3198. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3199. fbdev_indev_deps="linux_fb_h"

  3200. fbdev_outdev_deps="linux_fb_h"

  3201. gdigrab_indev_deps="CreateDIBSection"

  3202. gdigrab_indev_extralibs="-lgdi32"

  3203. gdigrab_indev_select="bmp_decoder"

  3204. iec61883_indev_deps="libiec61883"

  3205. jack_indev_deps="libjack"

  3206. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3207. kmsgrab_indev_deps="libdrm"

  3208. lavfi_indev_deps="avfilter"

  3209. libcdio_indev_deps="libcdio"

  3210. libdc1394_indev_deps="libdc1394"

  3211. openal_indev_deps="openal"

  3212. opengl_outdev_deps="opengl"

  3213. oss_indev_deps_any="sys_soundcard_h"

  3214. oss_outdev_deps_any="sys_soundcard_h"

  3215. pulse_indev_deps="libpulse"

  3216. pulse_outdev_deps="libpulse"

  3217. sdl2_outdev_deps="sdl2"

  3218. sndio_indev_deps="sndio"

  3219. sndio_outdev_deps="sndio"

  3220. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3221. v4l2_indev_suggest="libv4l2"

  3222. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3223. v4l2_outdev_suggest="libv4l2"

  3224. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3225. xcbgrab_indev_deps="libxcb"

  3226. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3227. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3228. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3229. 

  3230. # protocols

  3231. async_protocol_deps="threads"

  3232. bluray_protocol_deps="libbluray"

  3233. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3234. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3235. ffrtmpcrypt_protocol_select="tcp_protocol"

  3236. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3237. ffrtmphttp_protocol_select="http_protocol"

  3238. ftp_protocol_select="tcp_protocol"

  3239. gopher_protocol_select="network"

  3240. http_protocol_select="tcp_protocol"

  3241. http_protocol_suggest="zlib"

  3242. httpproxy_protocol_select="tcp_protocol"

  3243. httpproxy_protocol_suggest="zlib"

  3244. https_protocol_select="tls_protocol"

  3245. https_protocol_suggest="zlib"

  3246. icecast_protocol_select="http_protocol"

  3247. librtmp_protocol_deps="librtmp"

  3248. librtmpe_protocol_deps="librtmp"

  3249. librtmps_protocol_deps="librtmp"

  3250. librtmpt_protocol_deps="librtmp"

  3251. librtmpte_protocol_deps="librtmp"

  3252. libsmbclient_protocol_deps="libsmbclient gplv3"

  3253. libssh_protocol_deps="libssh"

  3254. libtls_conflict="openssl gnutls"

  3255. mmsh_protocol_select="http_protocol"

  3256. mmst_protocol_select="network"

  3257. libsrt_protocol_deps="libsrt"

  3258. libsrt_protocol_select="network"

  3259. rtmp_protocol_conflict="librtmp_protocol"

  3260. rtmp_protocol_select="tcp_protocol"

  3261. rtmp_protocol_suggest="zlib"

  3262. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3263. rtmpe_protocol_suggest="zlib"

  3264. rtmps_protocol_conflict="librtmp_protocol"

  3265. rtmps_protocol_select="tls_protocol"

  3266. rtmps_protocol_suggest="zlib"

  3267. rtmpt_protocol_select="ffrtmphttp_protocol"

  3268. rtmpt_protocol_suggest="zlib"

  3269. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3270. rtmpte_protocol_suggest="zlib"

  3271. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3272. rtmpts_protocol_suggest="zlib"

  3273. rtp_protocol_select="udp_protocol"

  3274. schannel_conflict="openssl gnutls libtls"

  3275. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3276. sctp_protocol_select="network"

  3277. securetransport_conflict="openssl gnutls libtls"

  3278. srtp_protocol_select="rtp_protocol srtp"

  3279. tcp_protocol_select="network"

  3280. tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"

  3281. tls_protocol_select="tcp_protocol"

  3282. udp_protocol_select="network"

  3283. udplite_protocol_select="network"

  3284. unix_protocol_deps="sys_un_h"

  3285. unix_protocol_select="network"

  3286. 

  3287. # filters

  3288. afftfilt_filter_deps="avcodec"

  3289. afftfilt_filter_select="fft"

  3290. afir_filter_deps="avcodec"

  3291. afir_filter_select="fft"

  3292. amovie_filter_deps="avcodec avformat"

  3293. aresample_filter_deps="swresample"

  3294. ass_filter_deps="libass"

  3295. atempo_filter_deps="avcodec"

  3296. atempo_filter_select="rdft"

  3297. avgblur_opencl_filter_deps="opencl"

  3298. azmq_filter_deps="libzmq"

  3299. blackframe_filter_deps="gpl"

  3300. boxblur_filter_deps="gpl"

  3301. bs2b_filter_deps="libbs2b"

  3302. colormatrix_filter_deps="gpl"

  3303. convolution_opencl_filter_deps="opencl"

  3304. convolve_filter_deps="avcodec"

  3305. convolve_filter_select="fft"

  3306. coreimage_filter_deps="coreimage appkit"

  3307. coreimage_filter_extralibs="-framework OpenGL"

  3308. coreimagesrc_filter_deps="coreimage appkit"

  3309. coreimagesrc_filter_extralibs="-framework OpenGL"

  3310. cover_rect_filter_deps="avcodec avformat gpl"

  3311. cropdetect_filter_deps="gpl"

  3312. deconvolve_filter_deps="avcodec"

  3313. deconvolve_filter_select="fft"

  3314. deinterlace_qsv_filter_deps="libmfx"

  3315. deinterlace_vaapi_filter_deps="vaapi"

  3316. delogo_filter_deps="gpl"

  3317. denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3318. deshake_filter_select="pixelutils"

  3319. drawtext_filter_deps="libfreetype"

  3320. drawtext_filter_suggest="libfontconfig libfribidi"

  3321. elbg_filter_deps="avcodec"

  3322. eq_filter_deps="gpl"

  3323. fftfilt_filter_deps="avcodec"

  3324. fftfilt_filter_select="rdft"

  3325. find_rect_filter_deps="avcodec avformat gpl"

  3326. firequalizer_filter_deps="avcodec"

  3327. firequalizer_filter_select="rdft"

  3328. flite_filter_deps="libflite"

  3329. framerate_filter_select="pixelutils"

  3330. frei0r_filter_deps="frei0r libdl"

  3331. frei0r_src_filter_deps="frei0r libdl"

  3332. fspp_filter_deps="gpl"

  3333. geq_filter_deps="gpl"

  3334. histeq_filter_deps="gpl"

  3335. hqdn3d_filter_deps="gpl"

  3336. interlace_filter_deps="gpl"

  3337. kerndeint_filter_deps="gpl"

  3338. ladspa_filter_deps="ladspa libdl"

  3339. lv2_filter_deps="lv2"

  3340. mcdeint_filter_deps="avcodec gpl"

  3341. movie_filter_deps="avcodec avformat"

  3342. mpdecimate_filter_deps="gpl"

  3343. mpdecimate_filter_select="pixelutils"

  3344. mptestsrc_filter_deps="gpl"

  3345. negate_filter_deps="lut_filter"

  3346. nnedi_filter_deps="gpl"

  3347. ocr_filter_deps="libtesseract"

  3348. ocv_filter_deps="libopencv"

  3349. openclsrc_filter_deps="opencl"

  3350. overlay_opencl_filter_deps="opencl"

  3351. overlay_qsv_filter_deps="libmfx"

  3352. overlay_qsv_filter_select="qsvvpp"

  3353. owdenoise_filter_deps="gpl"

  3354. pan_filter_deps="swresample"

  3355. perspective_filter_deps="gpl"

  3356. phase_filter_deps="gpl"

  3357. pp7_filter_deps="gpl"

  3358. pp_filter_deps="gpl postproc"

  3359. procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3360. program_opencl_filter_deps="opencl"

  3361. pullup_filter_deps="gpl"

  3362. removelogo_filter_deps="avcodec avformat swscale"

  3363. repeatfields_filter_deps="gpl"

  3364. resample_filter_deps="avresample"

  3365. rubberband_filter_deps="librubberband"

  3366. sab_filter_deps="gpl swscale"

  3367. scale2ref_filter_deps="swscale"

  3368. scale_filter_deps="swscale"

  3369. scale_qsv_filter_deps="libmfx"

  3370. select_filter_select="pixelutils"

  3371. sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3372. showcqt_filter_deps="avcodec avformat swscale"

  3373. showcqt_filter_suggest="libfontconfig libfreetype"

  3374. showcqt_filter_select="fft"

  3375. showfreqs_filter_deps="avcodec"

  3376. showfreqs_filter_select="fft"

  3377. showspectrum_filter_deps="avcodec"

  3378. showspectrum_filter_select="fft"

  3379. showspectrumpic_filter_deps="avcodec"

  3380. showspectrumpic_filter_select="fft"

  3381. signature_filter_deps="gpl avcodec avformat"

  3382. smartblur_filter_deps="gpl swscale"

  3383. sofalizer_filter_deps="libmysofa avcodec"

  3384. sofalizer_filter_select="fft"

  3385. spectrumsynth_filter_deps="avcodec"

  3386. spectrumsynth_filter_select="fft"

  3387. spp_filter_deps="gpl avcodec"

  3388. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3389. stereo3d_filter_deps="gpl"

  3390. subtitles_filter_deps="avformat avcodec libass"

  3391. super2xsai_filter_deps="gpl"

  3392. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3393. tinterlace_filter_deps="gpl"

  3394. tinterlace_merge_test_deps="tinterlace_filter"

  3395. tinterlace_pad_test_deps="tinterlace_filter"

  3396. tonemap_filter_deps="const_nan"

  3397. unsharp_opencl_filter_deps="opencl"

  3398. uspp_filter_deps="gpl avcodec"

  3399. vaguedenoiser_filter_deps="gpl"

  3400. vidstabdetect_filter_deps="libvidstab"

  3401. vidstabtransform_filter_deps="libvidstab"

  3402. libvmaf_filter_deps="libvmaf pthreads"

  3403. zmq_filter_deps="libzmq"

  3404. zoompan_filter_deps="swscale"

  3405. zscale_filter_deps="libzimg const_nan"

  3406. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3407. vpp_qsv_filter_deps="libmfx"

  3408. vpp_qsv_filter_select="qsvvpp"

  3409. 

  3410. # examples

  3411. avio_dir_cmd_deps="avformat avutil"

  3412. avio_reading_deps="avformat avcodec avutil"

  3413. decode_audio_example_deps="avcodec avutil"

  3414. decode_video_example_deps="avcodec avutil"

  3415. demuxing_decoding_example_deps="avcodec avformat avutil"

  3416. encode_audio_example_deps="avcodec avutil"

  3417. encode_video_example_deps="avcodec avutil"

  3418. extract_mvs_example_deps="avcodec avformat avutil"

  3419. filter_audio_example_deps="avfilter avutil"

  3420. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3421. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3422. http_multiclient_example_deps="avformat avutil fork"

  3423. hw_decode_example_deps="avcodec avformat avutil"

  3424. metadata_example_deps="avformat avutil"

  3425. muxing_example_deps="avcodec avformat avutil swscale"

  3426. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3427. remuxing_example_deps="avcodec avformat avutil"

  3428. resampling_audio_example_deps="avutil swresample"

  3429. scaling_video_example_deps="avutil swscale"

  3430. transcode_aac_example_deps="avcodec avformat swresample"

  3431. transcoding_example_deps="avfilter avcodec avformat avutil"

  3432. vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"

  3433. vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"

  3434. 

  3435. # EXTRALIBS_LIST

  3436. cpu_init_extralibs="pthreads_extralibs"

  3437. cws2fws_extralibs="zlib_extralibs"

  3438. 

  3439. # libraries, in linking order

  3440. avcodec_deps="avutil"

  3441. avcodec_suggest="libm"

  3442. avcodec_select="null_bsf"

  3443. avdevice_deps="avformat avcodec avutil"

  3444. avdevice_suggest="libm"

  3445. avfilter_deps="avutil"

  3446. avfilter_suggest="libm"

  3447. avformat_deps="avcodec avutil"

  3448. avformat_suggest="libm network zlib"

  3449. avresample_deps="avutil"

  3450. avresample_suggest="libm"

  3451. avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"

  3452. postproc_deps="avutil gpl"

  3453. postproc_suggest="libm"

  3454. swresample_deps="avutil"

  3455. swresample_suggest="libm libsoxr"

  3456. swscale_deps="avutil"

  3457. swscale_suggest="libm"

  3458. 

  3459. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3460. avfilter_extralibs="pthreads_extralibs"

  3461. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3462. 

  3463. # programs

  3464. ffmpeg_deps="avcodec avfilter avformat"

  3465. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3466.                null_filter

  3467.                trim_filter"

  3468. ffmpeg_suggest="ole32 psapi shell32"

  3469. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3470. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3471. ffplay_suggest="shell32"

  3472. ffprobe_deps="avcodec avformat"

  3473. ffprobe_suggest="shell32"

  3474. 

  3475. # documentation

  3476. podpages_deps="perl"

  3477. manpages_deps="perl pod2man"

  3478. htmlpages_deps="perl"

  3479. htmlpages_deps_any="makeinfo_html texi2html"

  3480. txtpages_deps="perl makeinfo"

  3481. doc_deps_any="manpages htmlpages podpages txtpages"

  3482. 

  3483. # default parameters

  3484. 

  3485. logfile="ffbuild/config.log"

  3486. 

  3487. # installation paths

  3488. prefix_default="/usr/local"

  3489. bindir_default='${prefix}/bin'

  3490. datadir_default='${prefix}/share/ffmpeg'

  3491. docdir_default='${prefix}/share/doc/ffmpeg'

  3492. incdir_default='${prefix}/include'

  3493. libdir_default='${prefix}/lib'

  3494. mandir_default='${prefix}/share/man'

  3495. 

  3496. # toolchain

  3497. ar_default="ar"

  3498. cc_default="gcc"

  3499. cxx_default="g++"

  3500. host_cc_default="gcc"

  3501. doxygen_default="doxygen"

  3502. install="install"

  3503. ln_s_default="ln -s -f"

  3504. nm_default="nm -g"

  3505. pkg_config_default=pkg-config

  3506. ranlib_default="ranlib"

  3507. strip_default="strip"

  3508. version_script='--version-script'

  3509. objformat="elf32"

  3510. x86asmexe_default="nasm"

  3511. windres_default="windres"

  3512. nvcc_default="nvcc"

  3513. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3514. striptype="direct"

  3515. 

  3516. # OS

  3517. target_os_default=$(tolower $(uname -s))

  3518. host_os=$target_os_default

  3519. 

  3520. # machine

  3521. if test "$target_os_default" = aix; then

  3522.     arch_default=$(uname -p)

  3523.     strip_default="strip -X32_64"

  3524. else

  3525.     arch_default=$(uname -m)

  3526. fi

  3527. cpu="generic"

  3528. intrinsics="none"

  3529. 

  3530. # configurable options

  3531. enable $PROGRAM_LIST

  3532. enable $DOCUMENT_LIST

  3533. enable $EXAMPLE_LIST

  3534. enable $(filter_out avresample $LIBRARY_LIST)

  3535. enable stripping

  3536. 

  3537. enable asm

  3538. enable debug

  3539. enable doc

  3540. enable faan faandct faanidct

  3541. enable optimizations

  3542. enable runtime_cpudetect

  3543. enable safe_bitstream_reader

  3544. enable static

  3545. enable swscale_alpha

  3546. enable valgrind_backtrace

  3547. 

  3548. sws_max_filter_size_default=256

  3549. set_default sws_max_filter_size

  3550. 

  3551. # internal components are enabled by default

  3552. enable $EXTRALIBS_LIST

  3553. 

  3554. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3555. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3556. 

  3557. # build settings

  3558. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3559. LIBPREF="lib"

  3560. LIBSUF=".a"

  3561. FULLNAME='$(NAME)$(BUILDSUF)'

  3562. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3563. SLIBPREF="lib"

  3564. SLIBSUF=".so"

  3565. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3566. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3567. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3568. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3569. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3570. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3571. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3572. 

  3573. asflags_filter=echo

  3574. cflags_filter=echo

  3575. ldflags_filter=echo

  3576. 

  3577. AS_C='-c'

  3578. AS_O='-o $@'

  3579. CC_C='-c'

  3580. CC_E='-E -o $@'

  3581. CC_O='-o $@'

  3582. CXX_C='-c'

  3583. CXX_O='-o $@'

  3584. OBJCC_C='-c'

  3585. OBJCC_E='-E -o $@'

  3586. OBJCC_O='-o $@'

  3587. X86ASM_O='-o $@'

  3588. LD_O='-o $@'

  3589. LD_LIB='-l%'

  3590. LD_PATH='-L'

  3591. HOSTCC_C='-c'

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

  3593. HOSTCC_O='-o $@'

  3594. HOSTLD_O='-o $@'

  3595. NVCC_C='-c'

  3596. NVCC_O='-o $@'

  3597. 

  3598. host_extralibs='-lm'

  3599. host_cflags_filter=echo

  3600. host_ldflags_filter=echo

  3601. 

  3602. target_path='$(CURDIR)'

  3603. 

  3604. # since the object filename is not given with the -MM flag, the compiler

  3605. # is only able to print the basename, and we must add the path ourselves

  3606. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3607. DEPFLAGS='-MM'

  3608. 

  3609. mkdir -p ffbuild

  3610. 

  3611. # find source path

  3612. if test -f configure; then

  3613.     source_path=.

  3614. else

  3615.     source_path=$(cd $(dirname "$0"); pwd)

  3616.     case "$source_path" in

  3617.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3618.     esac

  3619.     test -e "$source_path/config.h" &&

  3620.         die "Out of tree builds are impossible with config.h in source dir."

  3621. fi

  3622. 

  3623. for v in "$@"; do

  3624.     r=${v#*=}

  3625.     l=${v%"$r"}

  3626.     r=$(sh_quote "$r")

  3627.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3628. done

  3629. 

  3630. find_things_extern(){

  3631.     thing=$1

  3632.     pattern=$2

  3633.     file=$source_path/$3

  3634.     out=${4:-$thing}

  3635.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"

  3636. }

  3637. 

  3638. find_filters_extern(){

  3639.     file=$source_path/$1

  3640.     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file

  3641.     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file

  3642. }

  3643. 

  3644. FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)

  3645. OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)

  3646. INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)

  3647. MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)

  3648. DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)

  3649. ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)

  3650. DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)

  3651. CODEC_LIST="

  3652.     $ENCODER_LIST

  3653.     $DECODER_LIST

  3654. "

  3655. PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)

  3656. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3657. HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)

  3658. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3659. 

  3660. AVCODEC_COMPONENTS_LIST="

  3661.     $BSF_LIST

  3662.     $DECODER_LIST

  3663.     $ENCODER_LIST

  3664.     $HWACCEL_LIST

  3665.     $PARSER_LIST

  3666. "

  3667. 

  3668. AVDEVICE_COMPONENTS_LIST="

  3669.     $INDEV_LIST

  3670.     $OUTDEV_LIST

  3671. "

  3672. 

  3673. AVFILTER_COMPONENTS_LIST="

  3674.     $FILTER_LIST

  3675. "

  3676. 

  3677. AVFORMAT_COMPONENTS_LIST="

  3678.     $DEMUXER_LIST

  3679.     $MUXER_LIST

  3680.     $PROTOCOL_LIST

  3681. "

  3682. 

  3683. ALL_COMPONENTS="

  3684.     $AVCODEC_COMPONENTS_LIST

  3685.     $AVDEVICE_COMPONENTS_LIST

  3686.     $AVFILTER_COMPONENTS_LIST

  3687.     $AVFORMAT_COMPONENTS_LIST

  3688. "

  3689. 

  3690. for n in $COMPONENT_LIST; do

  3691.     v=$(toupper ${n%s})_LIST

  3692.     eval enable \$$v

  3693.     eval ${n}_if_any="\$$v"

  3694. done

  3695. 

  3696. enable $ARCH_EXT_LIST

  3697. 

  3698. die_unknown(){

  3699.     echo "Unknown option \"$1\"."

  3700.     echo "See $0 --help for available options."

  3701.     exit 1

  3702. }

  3703. 

  3704. print_in_columns() {

  3705.     cols=$(expr $ncols / 24)

  3706.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3707. }

  3708. 

  3709. show_list() {

  3710.     suffix=_$1

  3711.     shift

  3712.     echo $* | sed s/$suffix//g | print_in_columns

  3713.     exit 0

  3714. }

  3715. 

  3716. rand_list(){

  3717.     IFS=', '

  3718.     set -- $*

  3719.     unset IFS

  3720.     for thing; do

  3721.         comp=${thing%:*}

  3722.         prob=${thing#$comp}

  3723.         prob=${prob#:}

  3724.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3725.         echo "prob ${prob:-0.5}"

  3726.         printf '%s\n' $comp

  3727.     done

  3728. }

  3729. 

  3730. do_random(){

  3731.     action=$1

  3732.     shift

  3733.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3734.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3735. }

  3736. 

  3737. for opt do

  3738.     optval="${opt#*=}"

  3739.     case "$opt" in

  3740.         --extra-ldflags=*)

  3741.             add_ldflags $optval

  3742.         ;;

  3743.         --extra-ldexeflags=*)

  3744.             add_ldexeflags $optval

  3745.         ;;

  3746.         --extra-ldsoflags=*)

  3747.             add_ldsoflags $optval

  3748.         ;;

  3749.         --extra-ldlibflags=*)

  3750.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3751.                  "removed in the future. Use --extra-ldsoflags instead."

  3752.             add_ldsoflags $optval

  3753.         ;;

  3754.         --extra-libs=*)

  3755.             add_extralibs $optval

  3756.         ;;

  3757.         --disable-devices)

  3758.             disable $INDEV_LIST $OUTDEV_LIST

  3759.         ;;

  3760.         --enable-debug=*)

  3761.             debuglevel="$optval"

  3762.         ;;

  3763.         --disable-programs)

  3764.             disable $PROGRAM_LIST

  3765.         ;;

  3766.         --disable-everything)

  3767.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3768.         ;;

  3769.         --disable-all)

  3770.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3771.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3772.             enable avutil

  3773.         ;;

  3774.         --enable-random|--disable-random)

  3775.             action=${opt%%-random}

  3776.             do_random ${action#--} $COMPONENT_LIST

  3777.         ;;

  3778.         --enable-random=*|--disable-random=*)

  3779.             action=${opt%%-random=*}

  3780.             do_random ${action#--} $optval

  3781.         ;;

  3782.         --enable-sdl)

  3783.             enable sdl2

  3784.         ;;

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

  3786.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3787.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3788.             eval list=\$$(toupper $thing)_LIST

  3789.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3790.             list=$(filter "$name" $list)

  3791.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3792.             $action $list

  3793.         ;;

  3794.         --enable-yasm|--disable-yasm)

  3795.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3796.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3797.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3798.         ;;

  3799.         --yasmexe=*)

  3800.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3801.                  "removed in the future. Use --x86asmexe instead."

  3802.             x86asmexe="$optval"

  3803.         ;;

  3804.         --enable-?*|--disable-?*)

  3805.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3806.             if is_in $option $COMPONENT_LIST; then

  3807.                 test $action = disable && action=unset

  3808.                 eval $action \$$(toupper ${option%s})_LIST

  3809.             elif is_in $option $CMDLINE_SELECT; then

  3810.                 $action $option

  3811.             else

  3812.                 die_unknown $opt

  3813.             fi

  3814.         ;;

  3815.         --list-*)

  3816.             NAME="${opt#--list-}"

  3817.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3818.             NAME=${NAME%s}

  3819.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3820.         ;;

  3821.         --help|-h) show_help

  3822.         ;;

  3823.         --quiet|-q) quiet=yes

  3824.         ;;

  3825.         --fatal-warnings) enable fatal_warnings

  3826.         ;;

  3827.         --libfuzzer=*)

  3828.             libfuzzer_path="$optval"

  3829.         ;;

  3830.         *)

  3831.             optname="${opt%%=*}"

  3832.             optname="${optname#--}"

  3833.             optname=$(echo "$optname" | sed 's/-/_/g')

  3834.             if is_in $optname $CMDLINE_SET; then

  3835.                 eval $optname='$optval'

  3836.             elif is_in $optname $CMDLINE_APPEND; then

  3837.                 append $optname "$optval"

  3838.             else

  3839.                 die_unknown $opt

  3840.             fi

  3841.         ;;

  3842.     esac

  3843. done

  3844. 

  3845. for e in $env; do

  3846.     eval "export $e"

  3847. done

  3848. 

  3849. if disabled autodetect; then

  3850. 

  3851.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3852.     # for the iconv from the libc.

  3853.     disabled iconv || enable libc_iconv

  3854. 

  3855.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3856.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3857. fi

  3858. # Mark specifically enabled, but normally autodetected libraries as requested.

  3859. for lib in $AUTODETECT_LIBS; do

  3860.     enabled $lib && request $lib

  3861. done

  3862. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3863. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3864. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3865. 

  3866. disabled logging && logfile=/dev/null

  3867. 

  3868. # command line configuration sanity checks

  3869. 

  3870. # we need to build at least one lib type

  3871. if ! enabled_any static shared; then

  3872.     cat <<EOF

  3873. At least one library type must be built.

  3874. Specify --enable-static to build the static libraries or --enable-shared to

  3875. build the shared libraries as well. To only build the shared libraries specify

  3876. --disable-static in addition to --enable-shared.

  3877. EOF

  3878.     exit 1

  3879. fi

  3880. 

  3881. die_license_disabled() {

  3882.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3883. }

  3884. 

  3885. die_license_disabled_gpl() {

  3886.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3887. }

  3888. 

  3889. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3890. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3891. 

  3892. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3893. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3894. 

  3895. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3896. 

  3897. if enabled nonfree; then

  3898.     license="nonfree and unredistributable"

  3899. elif enabled gplv3; then

  3900.     license="GPL version 3 or later"

  3901. elif enabled lgplv3; then

  3902.     license="LGPL version 3 or later"

  3903. elif enabled gpl; then

  3904.     license="GPL version 2 or later"

  3905. else

  3906.     license="LGPL version 2.1 or later"

  3907. fi

  3908. 

  3909. enabled_all gnutls openssl &&

  3910.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3911. 

  3912. # Disable all the library-specific components if the library itself

  3913. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3914. 

  3915. disable_components(){

  3916.     disabled ${1} && disable $(

  3917.         eval components="\$$(toupper ${1})_COMPONENTS"

  3918.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3919.     )

  3920. }

  3921. 

  3922. map 'disable_components $v' $LIBRARY_LIST

  3923. 

  3924. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3925. set >> $logfile

  3926. 

  3927. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3928. 

  3929. enabled ossfuzz && {

  3930.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3931.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3932. }

  3933. 

  3934. case "$toolchain" in

  3935.     *-asan)

  3936.         cc_default="${toolchain%-asan}"

  3937.         add_cflags  -fsanitize=address

  3938.         add_ldflags -fsanitize=address

  3939.     ;;

  3940.     *-msan)

  3941.         cc_default="${toolchain%-msan}"

  3942.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3943.         add_ldflags -fsanitize=memory

  3944.     ;;

  3945.     *-tsan)

  3946.         cc_default="${toolchain%-tsan}"

  3947.         add_cflags  -fsanitize=thread -fPIE

  3948.         add_ldflags -fsanitize=thread -pie

  3949.         case "$toolchain" in

  3950.             gcc-tsan)

  3951.                 add_cflags  -fPIC

  3952.                 add_ldflags -fPIC

  3953.                 ;;

  3954.         esac

  3955.     ;;

  3956.     *-usan)

  3957.         cc_default="${toolchain%-usan}"

  3958.         add_cflags  -fsanitize=undefined

  3959.         add_ldflags -fsanitize=undefined

  3960.     ;;

  3961.     valgrind-*)

  3962.         target_exec_default="valgrind"

  3963.         case "$toolchain" in

  3964.             valgrind-massif)

  3965.                 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"

  3966.                 ;;

  3967.             valgrind-memcheck)

  3968.                 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"

  3969.                 ;;

  3970.         esac

  3971.     ;;

  3972.     msvc)

  3973.         # Check whether the current MSVC version needs the C99 converter.

  3974.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3975.         # support enough of C99 to build ffmpeg. Default to the new

  3976.         # behaviour if the regexp was unable to match anything, since this

  3977.         # successfully parses the version number of existing supported

  3978.         # versions that require the converter (MSVC 2010 and 2012).

  3979.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3980.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3981.             cc_default="cl"

  3982.             cxx_default="cl"

  3983.         else

  3984.             cc_default="c99wrap cl"

  3985.             cxx_default="c99wrap cl"

  3986.         fi

  3987.         ld_default="$source_path/compat/windows/mslink"

  3988.         nm_default="dumpbin -symbols"

  3989.         ar_default="lib"

  3990.         case "$arch" in

  3991.         aarch64|arm64)

  3992.             as_default="armasm64"

  3993.             ;;

  3994.         arm*)

  3995.             as_default="armasm"

  3996.             ;;

  3997.         esac

  3998.         target_os_default="win32"

  3999.         # Use a relative path for TMPDIR. This makes sure all the

  4000.         # ffconf temp files are written with a relative path, avoiding

  4001.         # issues with msys/win32 path conversion for MSVC parameters

  4002.         # such as -Fo<file> or -out:<file>.

  4003.         TMPDIR=.

  4004.     ;;

  4005.     icl)

  4006.         cc_default="icl"

  4007.         ld_default="xilink"

  4008.         nm_default="dumpbin -symbols"

  4009.         ar_default="xilib"

  4010.         target_os_default="win32"

  4011.         TMPDIR=.

  4012.     ;;

  4013.     gcov)

  4014.         add_cflags  -fprofile-arcs -ftest-coverage

  4015.         add_ldflags -fprofile-arcs -ftest-coverage

  4016.     ;;

  4017.     llvm-cov)

  4018.         add_cflags -fprofile-arcs -ftest-coverage

  4019.         add_ldflags --coverage

  4020.     ;;

  4021.     hardened)

  4022.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  4023.         add_cflags   -fno-strict-overflow -fstack-protector-all

  4024.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  4025.         add_cflags   -fPIE

  4026.         add_ldexeflags -fPIE -pie

  4027.     ;;

  4028.     ?*)

  4029.         die "Unknown toolchain $toolchain"

  4030.     ;;

  4031. esac

  4032. 

  4033. if test -n "$cross_prefix"; then

  4034.     test -n "$arch" && test -n "$target_os" ||

  4035.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  4036.     enable cross_compile

  4037. fi

  4038. 

  4039. ar_default="${cross_prefix}${ar_default}"

  4040. cc_default="${cross_prefix}${cc_default}"

  4041. cxx_default="${cross_prefix}${cxx_default}"

  4042. nm_default="${cross_prefix}${nm_default}"

  4043. pkg_config_default="${cross_prefix}${pkg_config_default}"

  4044. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  4045.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  4046. else

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

  4048. fi

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

  4050. windres_default="${cross_prefix}${windres_default}"

  4051. 

  4052. sysinclude_default="${sysroot}/usr/include"

  4053. 

  4054. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  4055.     target_exec target_os x86asmexe nvcc

  4056. enabled cross_compile || host_cc_default=$cc

  4057. set_default host_cc

  4058. 

  4059. pkg_config_fail_message=""

  4060. if ! $pkg_config --version >/dev/null 2>&1; then

  4061.     warn "$pkg_config not found, library detection may fail."

  4062.     pkg_config=false

  4063. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  4064.     pkg_config_fail_message="

  4065. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  4066. fi

  4067. 

  4068. if test $doxygen != $doxygen_default && \

  4069.   ! $doxygen --version >/dev/null 2>&1; then

  4070.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  4071. fi

  4072. 

  4073. exesuf() {

  4074.     case $1 in

  4075.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  4076.     esac

  4077. }

  4078. 

  4079. EXESUF=$(exesuf $target_os)

  4080. HOSTEXESUF=$(exesuf $host_os)

  4081. 

  4082. # set temporary file name

  4083. : ${TMPDIR:=$TEMPDIR}

  4084. : ${TMPDIR:=$TMP}

  4085. : ${TMPDIR:=/tmp}

  4086. 

  4087. if [ -n "$tempprefix" ] ; then

  4088.     mktemp(){

  4089.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  4090.         echo "$tmpname"

  4091.         mkdir "$tmpname"

  4092.     }

  4093. elif ! test_cmd mktemp -u XXXXXX; then

  4094.     # simple replacement for missing mktemp

  4095.     # NOT SAFE FOR GENERAL USE

  4096.     mktemp(){

  4097.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  4098.         echo "$tmpname"

  4099.         mkdir "$tmpname"

  4100.     }

  4101. fi

  4102. 

  4103. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  4104.     die "Unable to create temporary directory in $TMPDIR."

  4105. 

  4106. tmpfile(){

  4107.     tmp="${FFTMPDIR}/test"$2

  4108.     (set -C; exec > $tmp) 2> /dev/null ||

  4109.         die "Unable to create temporary file in $FFTMPDIR."

  4110.     eval $1=$tmp

  4111. }

  4112. 

  4113. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  4114. trap 'exit 2' INT

  4115. 

  4116. tmpfile TMPASM .asm

  4117. tmpfile TMPC   .c

  4118. tmpfile TMPCPP .cpp

  4119. tmpfile TMPE   $EXESUF

  4120. tmpfile TMPH   .h

  4121. tmpfile TMPM   .m

  4122. tmpfile TMPO   .o

  4123. tmpfile TMPS   .S

  4124. tmpfile TMPSH  .sh

  4125. tmpfile TMPV   .ver

  4126. 

  4127. unset -f mktemp

  4128. 

  4129. chmod +x $TMPE

  4130. 

  4131. # make sure we can execute files in $TMPDIR

  4132. cat > $TMPSH 2>> $logfile <<EOF

  4133. #! /bin/sh

  4134. EOF

  4135. chmod +x $TMPSH >> $logfile 2>&1

  4136. if ! $TMPSH >> $logfile 2>&1; then

  4137.     cat <<EOF

  4138. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4139. variable to another directory and make sure that it is not mounted noexec.

  4140. EOF

  4141.     die "Sanity test failed."

  4142. fi

  4143. 

  4144. armasm_flags(){

  4145.     for flag; do

  4146.         case $flag in

  4147.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4148.             # be passed to gas-preprocessor

  4149.             -M[TD]*)                                            ;;

  4150.             *)                  echo $flag                      ;;

  4151.         esac

  4152.    done

  4153. }

  4154. 

  4155. cparser_flags(){

  4156.     for flag; do

  4157.         case $flag in

  4158.             -Wno-switch)             echo -Wno-switch-enum ;;

  4159.             -Wno-format-zero-length) ;;

  4160.             -Wdisabled-optimization) ;;

  4161.             -Wno-pointer-sign)       echo -Wno-other ;;

  4162.             *)                       echo $flag ;;

  4163.         esac

  4164.     done

  4165. }

  4166. 

  4167. msvc_common_flags(){

  4168.     for flag; do

  4169.         case $flag in

  4170.             # In addition to specifying certain flags under the compiler

  4171.             # specific filters, they must be specified here as well or else the

  4172.             # generic catch all at the bottom will print the original flag.

  4173.             -Wall)                ;;

  4174.             -Wextra)              ;;

  4175.             -std=c99)             ;;

  4176.             # Common flags

  4177.             -fomit-frame-pointer) ;;

  4178.             -g)                   echo -Z7 ;;

  4179.             -fno-math-errno)      ;;

  4180.             -fno-common)          ;;

  4181.             -fno-signed-zeros)    ;;

  4182.             -fPIC)                ;;

  4183.             -mthumb)              ;;

  4184.             -march=*)             ;;

  4185.             -lz)                  echo zlib.lib ;;

  4186.             -lx264)               echo libx264.lib ;;

  4187.             -lstdc++)             ;;

  4188.             -l*)                  echo ${flag#-l}.lib ;;

  4189.             -LARGEADDRESSAWARE)   echo $flag ;;

  4190.             -L*)                  echo -libpath:${flag#-L} ;;

  4191.             *)                    echo $flag ;;

  4192.         esac

  4193.     done

  4194. }

  4195. 

  4196. msvc_flags(){

  4197.     msvc_common_flags "$@"

  4198.     for flag; do

  4199.         case $flag in

  4200.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4201.                                        -wd4554 ;;

  4202.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4203.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4204.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4205.                                        -wd4307 \

  4206.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4207.         esac

  4208.     done

  4209. }

  4210. 

  4211. icl_flags(){

  4212.     msvc_common_flags "$@"

  4213.     for flag; do

  4214.         case $flag in

  4215.             # Despite what Intel's documentation says -Wall, which is supported

  4216.             # on Windows, does enable remarks so disable them here.

  4217.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4218.             -std=c99)             echo -Qstd=c99 ;;

  4219.             -flto)                echo -ipo ;;

  4220.         esac

  4221.     done

  4222. }

  4223. 

  4224. icc_flags(){

  4225.     for flag; do

  4226.         case $flag in

  4227.             -flto)                echo -ipo ;;

  4228.             *)                    echo $flag ;;

  4229.         esac

  4230.     done

  4231. }

  4232. 

  4233. suncc_flags(){

  4234.     for flag; do

  4235.         case $flag in

  4236.             -march=*|-mcpu=*)

  4237.                 case "${flag#*=}" in

  4238.                     native)                   echo -xtarget=native       ;;

  4239.                     v9|niagara)               echo -xarch=sparc          ;;

  4240.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4241.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4242.                     i586|pentium)             echo -xchip=pentium        ;;

  4243.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4244.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4245.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4246.                     pentium4*)          echo -xtarget=pentium4           ;;

  4247.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4248.                     *-sse3)             echo -xarch=sse3                 ;;

  4249.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4250.                     bonnell)                   echo -xarch=ssse3         ;;

  4251.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4252.                     westmere)                  echo -xtarget=westmere    ;;

  4253.                     silvermont)                echo -xarch=sse4_2        ;;

  4254.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4255.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4256.                                                echo -xarch=avx           ;;

  4257.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4258.                     btver1)                    echo -xarch=amdsse4a      ;;

  4259.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4260.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4261.                     k8|opteron|athlon64|athlon-fx)

  4262.                                                echo -xarch=sse2a         ;;

  4263.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4264.                 esac

  4265.                 ;;

  4266.             -std=c99)             echo -xc99              ;;

  4267.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4268.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4269.             -W*,*)                echo $flag              ;;

  4270.             -f*-*|-W*|-mimpure-text)                      ;;

  4271.             -shared)              echo -G                 ;;

  4272.             *)                    echo $flag              ;;

  4273.         esac

  4274.     done

  4275. }

  4276. 

  4277. probe_cc(){

  4278.     pfx=$1

  4279.     _cc=$2

  4280.     first=$3

  4281. 

  4282.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4283.     unset _ld_o _ldflags _ld_lib _ld_path

  4284.     unset _depflags _DEPCMD _DEPFLAGS

  4285.     _flags_filter=echo

  4286. 

  4287.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4288.         true # no-op to avoid reading stdin in following checks

  4289.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4290.         _type=llvm_gcc

  4291.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4292.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4293.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4294.         _cflags_speed='-O3'

  4295.         _cflags_size='-Os'

  4296.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4297.         _type=gcc

  4298.         gcc_version=$($_cc --version | head -n1)

  4299.         gcc_basever=$($_cc -dumpversion)

  4300.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4301.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4302.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4303.         case $gcc_basever in

  4304.             2) ;;

  4305.             2.*) ;;

  4306.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4307.         esac

  4308.         if [ "$first" = true ]; then

  4309.             case $gcc_basever in

  4310.                 4.2*)

  4311.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4312.             esac

  4313.         fi

  4314.         _cflags_speed='-O3'

  4315.         _cflags_size='-Os'

  4316.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4317.         _type=icc

  4318.         _ident=$($_cc --version | head -n1)

  4319.         _depflags='-MMD'

  4320.         _cflags_speed='-O3'

  4321.         _cflags_size='-Os'

  4322.         _cflags_noopt='-O1'

  4323.         _flags_filter=icc_flags

  4324.     elif $_cc -v 2>&1 | grep -q xlc; then

  4325.         _type=xlc

  4326.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4327.         _cflags_speed='-O5'

  4328.         _cflags_size='-O5 -qcompact'

  4329.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4330.         test -d "$sysroot" || die "No valid sysroot specified."

  4331.         _type=armcc

  4332.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4333.         armcc_conf="$PWD/armcc.conf"

  4334.         $_cc --arm_linux_configure                 \

  4335.              --arm_linux_config_file="$armcc_conf" \

  4336.              --configure_sysroot="$sysroot"        \

  4337.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4338.              die "Error creating armcc configuration file."

  4339.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4340.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4341.         as_default="${cross_prefix}gcc"

  4342.         _depflags='-MMD'

  4343.         _cflags_speed='-O3'

  4344.         _cflags_size='-Os'

  4345.     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then

  4346.         _type=clang

  4347.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4348.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4349.         _cflags_speed='-O3'

  4350.         _cflags_size='-Oz'

  4351.     elif $_cc -V 2>&1 | grep -q Sun; then

  4352.         _type=suncc

  4353.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4354.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4355.         _DEPFLAGS='-xM1 -xc99'

  4356.         _ldflags='-std=c99'

  4357.         _cflags_speed='-O5'

  4358.         _cflags_size='-O5 -xspace'

  4359.         _flags_filter=suncc_flags

  4360.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4361.         _type=pathscale

  4362.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4363.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4364.         _cflags_speed='-O2'

  4365.         _cflags_size='-Os'

  4366.         _flags_filter='filter_out -Wdisabled-optimization'

  4367.     elif $_cc -v 2>&1 | grep -q Open64; then

  4368.         _type=open64

  4369.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4370.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4371.         _cflags_speed='-O2'

  4372.         _cflags_size='-Os'

  4373.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4374.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4375.         _type=armasm

  4376.         _ident=$($_cc | head -n1)

  4377.         # 4509: "This form of conditional instruction is deprecated"

  4378.         _flags="-nologo -ignore 4509"

  4379.         _flags_filter=armasm_flags

  4380.     elif $_cc 2>&1 | grep -q Intel; then

  4381.         _type=icl

  4382.         _ident=$($_cc 2>&1 | head -n1)

  4383.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4384.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4385.         # versions (tested) as well.

  4386.         _cflags_speed="-O2"

  4387.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4388.         if $_cc 2>&1 | grep -q Linker; then

  4389.             _ld_o='-out:$@'

  4390.         else

  4391.             _ld_o='-Fe$@'

  4392.         fi

  4393.         _cc_o='-Fo$@'

  4394.         _cc_e='-P'

  4395.         _flags_filter=icl_flags

  4396.         _ld_lib='lib%.a'

  4397.         _ld_path='-libpath:'

  4398.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4399.         _flags='-nologo -Qdiag-error:4044,10157'

  4400.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4401.         # with MSVC which enables it by default.

  4402.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4403.         disable stripping

  4404.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4405.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4406.         # the -? parameter gives the help output which contains an identifyable

  4407.         # string, while it gives an error in other modes.

  4408.         _type=lld-link

  4409.         # The link.exe mode doesn't have a switch for getting the version,

  4410.         # but we can force it back to gnu mode and get the version from there.

  4411.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4412.         _ld_o='-out:$@'

  4413.         _flags_filter=msvc_flags

  4414.         _ld_lib='lib%.a'

  4415.         _ld_path='-libpath:'

  4416.     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then

  4417.         _type=msvc

  4418.         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')

  4419.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4420.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4421.         _cflags_speed="-O2"

  4422.         _cflags_size="-O1"

  4423.         _cflags_noopt="-O1"

  4424.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4425.             _ld_o='-out:$@'

  4426.         else

  4427.             _ld_o='-Fe$@'

  4428.         fi

  4429.         _cc_o='-Fo$@'

  4430.         _cc_e='-P -Fi$@'

  4431.         _flags_filter=msvc_flags

  4432.         _ld_lib='lib%.a'

  4433.         _ld_path='-libpath:'

  4434.         _flags='-nologo'

  4435.         disable stripping

  4436.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4437.         _type=cparser

  4438.         _ident=$($_cc --version | head -n1)

  4439.         _depflags='-MMD'

  4440.         _cflags_speed='-O4'

  4441.         _cflags_size='-O2'

  4442.         _flags_filter=cparser_flags

  4443.     fi

  4444. 

  4445.     eval ${pfx}_type=\$_type

  4446.     eval ${pfx}_ident=\$_ident

  4447. }

  4448. 

  4449. set_ccvars(){

  4450.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4451.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4452.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4453. 

  4454.     if [ -n "$_depflags" ]; then

  4455.         eval ${1}_DEPFLAGS=\$_depflags

  4456.     else

  4457.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4458.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4459.         eval DEP${1}FLAGS=\$_flags

  4460.     fi

  4461. }

  4462. 

  4463. probe_cc cc "$cc" "true"

  4464. cflags_filter=$_flags_filter

  4465. cflags_speed=$_cflags_speed

  4466. cflags_size=$_cflags_size

  4467. cflags_noopt=$_cflags_noopt

  4468. add_cflags $_flags $_cflags

  4469. cc_ldflags=$_ldflags

  4470. set_ccvars CC

  4471. set_ccvars CXX

  4472. 

  4473. probe_cc hostcc "$host_cc"

  4474. host_cflags_filter=$_flags_filter

  4475. host_cflags_speed=$_cflags_speed

  4476. add_host_cflags  $_flags $_cflags

  4477. set_ccvars HOSTCC

  4478. 

  4479. test -n "$cc_type" && enable $cc_type ||

  4480.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4481. 

  4482. : ${as_default:=$cc}

  4483. : ${objcc_default:=$cc}

  4484. : ${dep_cc_default:=$cc}

  4485. : ${ld_default:=$cc}

  4486. : ${host_ld_default:=$host_cc}

  4487. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4488. 

  4489. probe_cc as "$as"

  4490. asflags_filter=$_flags_filter

  4491. add_asflags $_flags $_cflags

  4492. set_ccvars AS

  4493. 

  4494. probe_cc objcc "$objcc"

  4495. objcflags_filter=$_flags_filter

  4496. add_objcflags $_flags $_cflags

  4497. set_ccvars OBJC

  4498. 

  4499. probe_cc ld "$ld"

  4500. ldflags_filter=$_flags_filter

  4501. add_ldflags $_flags $_ldflags

  4502. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4503. LD_O=${_ld_o-$LD_O}

  4504. LD_LIB=${_ld_lib-$LD_LIB}

  4505. LD_PATH=${_ld_path-$LD_PATH}

  4506. 

  4507. probe_cc hostld "$host_ld"

  4508. host_ldflags_filter=$_flags_filter

  4509. add_host_ldflags $_flags $_ldflags

  4510. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4511. 

  4512. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4513.     probe_cc depcc "$dep_cc"

  4514.     CCDEP=${_DEPCMD:-$DEPCMD}

  4515.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4516.     DEPCCFLAGS=$_flags

  4517. fi

  4518. 

  4519. if $ar 2>&1 | grep -q Microsoft; then

  4520.     arflags="-nologo"

  4521.     ar_o='-out:$@'

  4522. elif $ar 2>&1 | grep -q "\[D\] "; then

  4523.     arflags="rcD"

  4524.     ar_o='$@'

  4525. else

  4526.     arflags="rc"

  4527.     ar_o='$@'

  4528. fi

  4529. 

  4530. add_cflags $extra_cflags

  4531. add_cxxflags $extra_cxxflags

  4532. add_objcflags $extra_objcflags

  4533. add_asflags $extra_cflags

  4534. 

  4535. if test -n "$sysroot"; then

  4536.     case "$cc_type" in

  4537.         gcc|llvm_gcc|clang)

  4538.             add_cppflags --sysroot="$sysroot"

  4539.             add_ldflags --sysroot="$sysroot"

  4540.         ;;

  4541.     esac

  4542. fi

  4543. 

  4544. if test "$cpu" = host; then

  4545.     enabled cross_compile &&

  4546.         die "--cpu=host makes no sense when cross-compiling."

  4547. 

  4548.     case "$cc_type" in

  4549.         gcc|llvm_gcc)

  4550.             check_native(){

  4551.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4552.                 sed -n "/cc1.*$1=/{

  4553.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4554.                             p

  4555.                             q

  4556.                         }" $TMPE

  4557.             }

  4558.             cpu=$(check_native -march || check_native -mcpu)

  4559.         ;;

  4560.         clang)

  4561.             check_native(){

  4562.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4563.                 sed -n "/cc1.*-target-cpu /{

  4564.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4565.                             p

  4566.                             q

  4567.                         }" $TMPE

  4568.             }

  4569.             cpu=$(check_native -march)

  4570.         ;;

  4571.     esac

  4572. 

  4573.     test "${cpu:-host}" = host &&

  4574.         die "--cpu=host not supported with compiler $cc"

  4575. fi

  4576. 

  4577. # Deal with common $arch aliases

  4578. case "$arch" in

  4579.     aarch64|arm64)

  4580.         arch="aarch64"

  4581.     ;;

  4582.     arm*|iPad*|iPhone*)

  4583.         arch="arm"

  4584.     ;;

  4585.     mips*|IP*)

  4586.         case "$arch" in

  4587.         *el)

  4588.             add_cppflags -EL

  4589.             add_ldflags -EL

  4590.         ;;

  4591.         *eb)

  4592.             add_cppflags -EB

  4593.             add_ldflags -EB

  4594.         ;;

  4595.         esac

  4596.         arch="mips"

  4597.     ;;

  4598.     parisc*|hppa*)

  4599.         arch="parisc"

  4600.     ;;

  4601.     "Power Macintosh"|ppc*|powerpc*)

  4602.         arch="ppc"

  4603.     ;;

  4604.     s390|s390x)

  4605.         arch="s390"

  4606.     ;;

  4607.     sh4|sh)

  4608.         arch="sh4"

  4609.     ;;

  4610.     sun4*|sparc*)

  4611.         arch="sparc"

  4612.     ;;

  4613.     tilegx|tile-gx)

  4614.         arch="tilegx"

  4615.     ;;

  4616.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4617.         arch="x86"

  4618.     ;;

  4619. esac

  4620. 

  4621. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4622. enable $arch

  4623. 

  4624. # Add processor-specific flags

  4625. if enabled aarch64; then

  4626. 

  4627.     case $cpu in

  4628.         armv*)

  4629.             cpuflags="-march=$cpu"

  4630.         ;;

  4631.         *)

  4632.             cpuflags="-mcpu=$cpu"

  4633.         ;;

  4634.     esac

  4635. 

  4636. elif enabled alpha; then

  4637. 

  4638.     cpuflags="-mcpu=$cpu"

  4639. 

  4640. elif enabled arm; then

  4641. 

  4642.     check_arm_arch() {

  4643.         test_cpp_condition stddef.h \

  4644.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4645.             $cpuflags

  4646.     }

  4647. 

  4648.     probe_arm_arch() {

  4649.         if   check_arm_arch 4;        then echo armv4

  4650.         elif check_arm_arch 4T;       then echo armv4t

  4651.         elif check_arm_arch 5;        then echo armv5

  4652.         elif check_arm_arch 5E;       then echo armv5e

  4653.         elif check_arm_arch 5T;       then echo armv5t

  4654.         elif check_arm_arch 5TE;      then echo armv5te

  4655.         elif check_arm_arch 5TEJ;     then echo armv5te

  4656.         elif check_arm_arch 6;        then echo armv6

  4657.         elif check_arm_arch 6J;       then echo armv6j

  4658.         elif check_arm_arch 6K;       then echo armv6k

  4659.         elif check_arm_arch 6Z;       then echo armv6z

  4660.         elif check_arm_arch 6KZ;      then echo armv6zk

  4661.         elif check_arm_arch 6ZK;      then echo armv6zk

  4662.         elif check_arm_arch 6T2;      then echo armv6t2

  4663.         elif check_arm_arch 7;        then echo armv7

  4664.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4665.         elif check_arm_arch 7S;       then echo armv7-a

  4666.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4667.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4668.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4669.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4670.         fi

  4671.     }

  4672. 

  4673.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4674. 

  4675.     case $cpu in

  4676.         armv*)

  4677.             cpuflags="-march=$cpu"

  4678.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4679.         ;;

  4680.         *)

  4681.             cpuflags="-mcpu=$cpu"

  4682.             case $cpu in

  4683.                 cortex-a*)                               subarch=armv7a  ;;

  4684.                 cortex-r*)                               subarch=armv7r  ;;

  4685.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4686.                 arm11*)                                  subarch=armv6   ;;

  4687.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4688.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4689.                 *)                             subarch=$(probe_arm_arch) ;;

  4690.             esac

  4691.         ;;

  4692.     esac

  4693. 

  4694.     case "$subarch" in

  4695.         armv5t*)    enable fast_clz                ;;

  4696.         armv[6-8]*)

  4697.             enable fast_clz

  4698.             disabled fast_unaligned || enable fast_unaligned

  4699.             ;;

  4700.     esac

  4701. 

  4702. elif enabled avr32; then

  4703. 

  4704.     case $cpu in

  4705.         ap7[02]0[0-2])

  4706.             subarch="avr32_ap"

  4707.             cpuflags="-mpart=$cpu"

  4708.         ;;

  4709.         ap)

  4710.             subarch="avr32_ap"

  4711.             cpuflags="-march=$cpu"

  4712.         ;;

  4713.         uc3[ab]*)

  4714.             subarch="avr32_uc"

  4715.             cpuflags="-mcpu=$cpu"

  4716.         ;;

  4717.         uc)

  4718.             subarch="avr32_uc"

  4719.             cpuflags="-march=$cpu"

  4720.         ;;

  4721.     esac

  4722. 

  4723. elif enabled bfin; then

  4724. 

  4725.     cpuflags="-mcpu=$cpu"

  4726. 

  4727. elif enabled mips; then

  4728. 

  4729.     cpuflags="-march=$cpu"

  4730. 

  4731.     if [ "$cpu" != "generic" ]; then

  4732.         disable mips32r2

  4733.         disable mips32r5

  4734.         disable mips64r2

  4735.         disable mips32r6

  4736.         disable mips64r6

  4737.         disable loongson2

  4738.         disable loongson3

  4739. 

  4740.         case $cpu in

  4741.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4742.                 enable mips32r2

  4743.                 disable msa

  4744.             ;;

  4745.             p5600|i6400|p6600)

  4746.                 disable mipsdsp

  4747.                 disable mipsdspr2

  4748.             ;;

  4749.             loongson*)

  4750.                 enable loongson2

  4751.                 enable loongson3

  4752.                 enable local_aligned

  4753.                 enable simd_align_16

  4754.                 enable fast_64bit

  4755.                 enable fast_clz

  4756.                 enable fast_cmov

  4757.                 enable fast_unaligned

  4758.                 disable aligned_stack

  4759.                 disable mipsfpu

  4760.                 disable mipsdsp

  4761.                 disable mipsdspr2

  4762.                 case $cpu in

  4763.                     loongson3*)

  4764.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4765.                     ;;

  4766.                     loongson2e)

  4767.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4768.                     ;;

  4769.                     loongson2f)

  4770.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4771.                     ;;

  4772.                 esac

  4773.             ;;

  4774.             *)

  4775.                 # Unknown CPU. Disable everything.

  4776.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4777.                 disable mipsfpu

  4778.                 disable mipsdsp

  4779.                 disable mipsdspr2

  4780.                 disable msa

  4781.                 disable mmi

  4782.             ;;

  4783.         esac

  4784. 

  4785.         case $cpu in

  4786.             24kc)

  4787.                 disable mipsfpu

  4788.                 disable mipsdsp

  4789.                 disable mipsdspr2

  4790.             ;;

  4791.             24kf*)

  4792.                 disable mipsdsp

  4793.                 disable mipsdspr2

  4794.             ;;

  4795.             24kec|34kc|1004kc)

  4796.                 disable mipsfpu

  4797.                 disable mipsdspr2

  4798.             ;;

  4799.             24kef*|34kf*|1004kf*)

  4800.                 disable mipsdspr2

  4801.             ;;

  4802.             74kc)

  4803.                 disable mipsfpu

  4804.             ;;

  4805.             p5600)

  4806.                 enable mips32r5

  4807.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4808.             ;;

  4809.             i6400)

  4810.                 enable mips64r6

  4811.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4812.             ;;

  4813.             p6600)

  4814.                 enable mips64r6

  4815.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4816.             ;;

  4817.         esac

  4818.     else

  4819.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4820.         warn 'generic cpu selected'

  4821.     fi

  4822. 

  4823. elif enabled ppc; then

  4824. 

  4825.     disable ldbrx

  4826. 

  4827.     case $(tolower $cpu) in

  4828.         601|ppc601|powerpc601)

  4829.             cpuflags="-mcpu=601"

  4830.             disable altivec

  4831.         ;;

  4832.         603*|ppc603*|powerpc603*)

  4833.             cpuflags="-mcpu=603"

  4834.             disable altivec

  4835.         ;;

  4836.         604*|ppc604*|powerpc604*)

  4837.             cpuflags="-mcpu=604"

  4838.             disable altivec

  4839.         ;;

  4840.         g3|75*|ppc75*|powerpc75*)

  4841.             cpuflags="-mcpu=750"

  4842.             disable altivec

  4843.         ;;

  4844.         g4|745*|ppc745*|powerpc745*)

  4845.             cpuflags="-mcpu=7450"

  4846.             disable vsx

  4847.         ;;

  4848.         74*|ppc74*|powerpc74*)

  4849.             cpuflags="-mcpu=7400"

  4850.             disable vsx

  4851.         ;;

  4852.         g5|970|ppc970|powerpc970)

  4853.             cpuflags="-mcpu=970"

  4854.             disable vsx

  4855.         ;;

  4856.         power[3-6]*)

  4857.             cpuflags="-mcpu=$cpu"

  4858.             disable vsx

  4859.         ;;

  4860.         power[7-8]*)

  4861.             cpuflags="-mcpu=$cpu"

  4862.         ;;

  4863.         cell)

  4864.             cpuflags="-mcpu=cell"

  4865.             enable ldbrx

  4866.             disable vsx

  4867.         ;;

  4868.         e500mc)

  4869.             cpuflags="-mcpu=e500mc"

  4870.             disable altivec

  4871.         ;;

  4872.         e500v2)

  4873.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4874.             disable altivec

  4875.             disable dcbzl

  4876.         ;;

  4877.         e500)

  4878.             cpuflags="-mcpu=8540 -mhard-float"

  4879.             disable altivec

  4880.             disable dcbzl

  4881.         ;;

  4882.     esac

  4883. 

  4884. elif enabled sparc; then

  4885. 

  4886.     case $cpu in

  4887.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4888.             cpuflags="-mcpu=$cpu"

  4889.         ;;

  4890.         ultrasparc*|niagara[234])

  4891.             cpuflags="-mcpu=$cpu"

  4892.         ;;

  4893.     esac

  4894. 

  4895. elif enabled x86; then

  4896. 

  4897.     case $cpu in

  4898.         i[345]86|pentium)

  4899.             cpuflags="-march=$cpu"

  4900.             disable i686

  4901.             disable mmx

  4902.         ;;

  4903.         # targets that do NOT support nopl and conditional mov (cmov)

  4904.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4905.             cpuflags="-march=$cpu"

  4906.             disable i686

  4907.         ;;

  4908.         # targets that do support nopl and conditional mov (cmov)

  4909.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4910.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4911.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4912.             cpuflags="-march=$cpu"

  4913.             enable i686

  4914.             enable fast_cmov

  4915.         ;;

  4916.         # targets that do support conditional mov but on which it's slow

  4917.         pentium4|pentium4m|prescott|nocona)

  4918.             cpuflags="-march=$cpu"

  4919.             enable i686

  4920.             disable fast_cmov

  4921.         ;;

  4922.     esac

  4923. 

  4924. fi

  4925. 

  4926. if [ "$cpu" != generic ]; then

  4927.     add_cflags  $cpuflags

  4928.     add_asflags $cpuflags

  4929.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4930. fi

  4931. 

  4932. # compiler sanity check

  4933. test_exec <<EOF

  4934. int main(void){ return 0; }

  4935. EOF

  4936. if test "$?" != 0; then

  4937.     echo "$cc is unable to create an executable file."

  4938.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4939.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4940.         echo "Only do this if you know what cross compiling means."

  4941.     fi

  4942.     die "C compiler test failed."

  4943. fi

  4944. 

  4945. add_cppflags -D_ISOC99_SOURCE

  4946. add_cxxflags -D__STDC_CONSTANT_MACROS

  4947. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4948. 

  4949. # some compilers silently accept -std=c11, so we also need to check that the

  4950. # version macro is defined properly

  4951. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4952.     add_cflags -std=c11 ||

  4953.     check_cflags -std=c99

  4954. 

  4955. check_cppflags -D_FILE_OFFSET_BITS=64

  4956. check_cppflags -D_LARGEFILE_SOURCE

  4957. 

  4958. add_host_cppflags -D_ISOC99_SOURCE

  4959. check_host_cflags -std=c99

  4960. check_host_cflags -Wall

  4961. check_host_cflags $host_cflags_speed

  4962. 

  4963. check_64bit(){

  4964.     arch32=$1

  4965.     arch64=$2

  4966.     expr=${3:-'sizeof(void *) > 4'}

  4967.     test_code cc "" "int test[2*($expr) - 1]" &&

  4968.         subarch=$arch64 || subarch=$arch32

  4969.     enable $subarch

  4970. }

  4971. 

  4972. case "$arch" in

  4973.     aarch64|alpha|ia64)

  4974.         enabled shared && enable_weak pic

  4975.     ;;

  4976.     mips)

  4977.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4978.         enabled shared && enable_weak pic

  4979.     ;;

  4980.     parisc)

  4981.         check_64bit parisc parisc64

  4982.         enabled shared && enable_weak pic

  4983.     ;;

  4984.     ppc)

  4985.         check_64bit ppc ppc64

  4986.         enabled shared && enable_weak pic

  4987.     ;;

  4988.     s390)

  4989.         check_64bit s390 s390x

  4990.         enabled shared && enable_weak pic

  4991.     ;;

  4992.     sparc)

  4993.         check_64bit sparc sparc64

  4994.         enabled shared && enable_weak pic

  4995.     ;;

  4996.     x86)

  4997.         check_64bit x86_32 x86_64

  4998.         # Treat x32 as x64 for now. Note it also needs pic if shared

  4999.         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&

  5000.             subarch=x86_64 && enable x86_64 && disable x86_32

  5001.         if enabled x86_64; then

  5002.             enabled shared && enable_weak pic

  5003.             objformat=elf64

  5004.         fi

  5005.     ;;

  5006. esac

  5007. 

  5008. # OS specific

  5009. case $target_os in

  5010.     aix)

  5011.         SHFLAGS=-shared

  5012.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  5013.         enabled shared && add_ldflags -Wl,-brtl

  5014.         arflags='-Xany -r -c'

  5015.         striptype=""

  5016.         ;;

  5017.     android)

  5018.         disable symver

  5019.         enable section_data_rel_ro

  5020.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  5021.         SLIB_INSTALL_LINKS=

  5022.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  5023.         ;;

  5024.     haiku)

  5025.         prefix_default="/boot/common"

  5026.         network_extralibs="-lnetwork"

  5027.         host_extralibs=

  5028.         ;;

  5029.     sunos)

  5030.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  5031.         enabled x86 && append SHFLAGS -mimpure-text

  5032.         network_extralibs="-lsocket -lnsl"

  5033.         add_cppflags -D__EXTENSIONS__

  5034.         # When using suncc to build, the Solaris linker will mark

  5035.         # an executable with each instruction set encountered by

  5036.         # the Solaris assembler.  As our libraries contain their own

  5037.         # guards for processor-specific code, instead suppress

  5038.         # generation of the HWCAPS ELF section on Solaris x86 only.

  5039.         enabled_all suncc x86 &&

  5040.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  5041.             add_ldflags -Wl,-M,mapfile

  5042.         nm_default='nm -P -g'

  5043.         version_script='-M'

  5044.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  5045.         ;;

  5046.     netbsd)

  5047.         disable symver

  5048.         oss_indev_extralibs="-lossaudio"

  5049.         oss_outdev_extralibs="-lossaudio"

  5050.         enabled gcc || check_ldflags -Wl,-zmuldefs

  5051.         ;;

  5052.     openbsd|bitrig)

  5053.         disable symver

  5054.         striptype=""

  5055.         SHFLAGS='-shared'

  5056.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  5057.         SLIB_INSTALL_LINKS=

  5058.         oss_indev_extralibs="-lossaudio"

  5059.         oss_outdev_extralibs="-lossaudio"

  5060.         ;;

  5061.     dragonfly)

  5062.         disable symver

  5063.         ;;

  5064.     freebsd)

  5065.         ;;

  5066.     bsd/os)

  5067.         add_extralibs -lpoll -lgnugetopt

  5068.         strip="strip -d"

  5069.         ;;

  5070.     darwin)

  5071.         enabled ppc && add_asflags -force_cpusubtype_ALL

  5072.         install_name_dir_default='$(SHLIBDIR)'

  5073.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  5074.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  5075.         strip="${strip} -x"

  5076.         add_ldflags -Wl,-dynamic,-search_paths_first

  5077.         check_cflags -Werror=partial-availability

  5078.         SLIBSUF=".dylib"

  5079.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  5080.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  5081.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  5082.         enabled_any pic shared x86_64 ||

  5083.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  5084.         check_header dispatch/dispatch.h &&

  5085.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  5086.         if test -n "$sysroot"; then

  5087.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  5088.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  5089.         fi

  5090.         version_script='-exported_symbols_list'

  5091.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  5092.         ;;

  5093.     msys*)

  5094.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  5095.         ;;

  5096.     mingw32*|mingw64*)

  5097.         target_os=mingw32

  5098.         LIBTARGET=i386

  5099.         if enabled x86_64; then

  5100.             LIBTARGET="i386:x86-64"

  5101.         elif enabled arm; then

  5102.             LIBTARGET="arm"

  5103.         elif enabled aarch64; then

  5104.             LIBTARGET="arm64"

  5105.         fi

  5106.         if enabled shared; then

  5107.             # Cannot build both shared and static libs when using dllimport.

  5108.             disable static

  5109.         fi

  5110.         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres

  5111.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  5112.         shlibdir_default="$bindir_default"

  5113.         SLIBPREF=""

  5114.         SLIBSUF=".dll"

  5115.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5116.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5117.         if test_cmd lib.exe -list; then

  5118.             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5119.             if enabled x86_64; then

  5120.                 LIBTARGET=x64

  5121.             fi

  5122.         else

  5123.             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'

  5124.         fi

  5125.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5126.         SLIB_INSTALL_LINKS=

  5127.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5128.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5129.         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)'

  5130.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  5131.         enabled x86_64 && objformat="win64" || objformat="win32"

  5132.         dlltool="${cross_prefix}dlltool"

  5133.         ranlib=:

  5134.         enable dos_paths

  5135.         check_ldflags -Wl,--nxcompat,--dynamicbase

  5136.         # Lets work around some stupidity in binutils.

  5137.         # ld will strip relocations from executables even though we need them

  5138.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  5139.         # however ld then forgets what the entry point should be (oops) so we

  5140.         # have to manually (re)set it.

  5141.         if enabled x86_32; then

  5142.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  5143.         elif enabled x86_64; then

  5144.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5145.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5146.             # Set image base >4GB for extra entropy with HEASLR

  5147.             add_ldexeflags -Wl,--image-base,0x140000000

  5148.             append SHFLAGS -Wl,--image-base,0x180000000

  5149.         fi

  5150.         ;;

  5151.     win32|win64)

  5152.         disable symver

  5153.         if enabled shared; then

  5154.             # Link to the import library instead of the normal static library

  5155.             # for shared libs.

  5156.             LD_LIB='%.lib'

  5157.             # Cannot build both shared and static libs with MSVC or icl.

  5158.             disable static

  5159.         fi

  5160.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5161.         shlibdir_default="$bindir_default"

  5162.         SLIBPREF=""

  5163.         SLIBSUF=".dll"

  5164.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5165.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5166.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5167.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5168.         SLIB_INSTALL_LINKS=

  5169.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5170.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5171.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5172.         enabled x86_64 && objformat="win64" || objformat="win32"

  5173.         ranlib=:

  5174.         enable dos_paths

  5175.         ;;

  5176.     cygwin*)

  5177.         target_os=cygwin

  5178.         shlibdir_default="$bindir_default"

  5179.         SLIBPREF="cyg"

  5180.         SLIBSUF=".dll"

  5181.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5182.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5183.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5184.         SLIB_INSTALL_LINKS=

  5185.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5186.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5187.         enabled x86_64 && objformat="win64" || objformat="win32"

  5188.         enable dos_paths

  5189.         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres

  5190.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5191.         ;;

  5192.     *-dos|freedos|opendos)

  5193.         network_extralibs="-lsocket"

  5194.         objformat="coff"

  5195.         enable dos_paths

  5196.         add_cppflags -U__STRICT_ANSI__

  5197.         ;;

  5198.     linux)

  5199.         enable section_data_rel_ro

  5200.         enabled_any arm aarch64 && enable_weak linux_perf

  5201.         ;;

  5202.     irix*)

  5203.         target_os=irix

  5204.         ranlib="echo ignoring ranlib"

  5205.         ;;

  5206.     os/2*)

  5207.         strip="lxlite -CS"

  5208.         striptype=""

  5209.         objformat="aout"

  5210.         add_cppflags -D_GNU_SOURCE

  5211.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5212.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5213.         LIBSUF="_s.a"

  5214.         SLIBPREF=""

  5215.         SLIBSUF=".dll"

  5216.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5217.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5218.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5219.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5220.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5221.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5222.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5223.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5224.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5225.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5226.         SLIB_INSTALL_LINKS=

  5227.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5228.         enable dos_paths

  5229.         enable_weak os2threads

  5230.         ;;

  5231.     gnu/kfreebsd)

  5232.         add_cppflags -D_BSD_SOURCE

  5233.         ;;

  5234.     gnu)

  5235.         ;;

  5236.     qnx)

  5237.         add_cppflags -D_QNX_SOURCE

  5238.         network_extralibs="-lsocket"

  5239.         ;;

  5240.     symbian)

  5241.         SLIBSUF=".dll"

  5242.         enable dos_paths

  5243.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5244.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5245.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5246.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5247.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5248.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5249.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5250.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5251.         ;;

  5252.     minix)

  5253.         ;;

  5254.     none)

  5255.         ;;

  5256.     *)

  5257.         die "Unknown OS '$target_os'."

  5258.         ;;

  5259. esac

  5260. 

  5261. # test if creating links works

  5262. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5263. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5264. mkdir "$link_dest"

  5265. $ln_s "$link_dest" "$link_name"

  5266. touch "$link_dest/test_file"

  5267. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5268.     # create link to source path

  5269.     [ -e src ] && rm src

  5270.     $ln_s "$source_path" src

  5271.     source_link=src

  5272. else

  5273.     # creating directory links doesn't work

  5274.     # fall back to using the full source path

  5275.     source_link="$source_path"

  5276. fi

  5277. # cleanup

  5278. rm -r "$link_dest"

  5279. rm -r "$link_name"

  5280. 

  5281. # determine libc flavour

  5282. 

  5283. probe_libc(){

  5284.     pfx=$1

  5285.     pfx_no_=${pfx%_}

  5286.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5287.     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5288.         eval ${pfx}libc_type=uclibc

  5289.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5290.     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5291.         eval ${pfx}libc_type=glibc

  5292.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5293.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5294.     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5295.         eval ${pfx}libc_type=newlib

  5296.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5297.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5298.     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5299.         eval ${pfx}libc_type=mingw64

  5300.         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5301.             add_compat msvcrt/snprintf.o

  5302.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5303.         fi

  5304.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5305.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5306.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5307.         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5308.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5309.     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5310.          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5311.         eval ${pfx}libc_type=mingw32

  5312.         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5313.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5314.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5315.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5316.         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5317.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5318.         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5319.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5320.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5321.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5322.     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5323.         eval ${pfx}libc_type=msvcrt

  5324.         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5325.             if [ "$pfx" = host_ ]; then

  5326.                 add_host_cppflags -Dsnprintf=_snprintf

  5327.             else

  5328.                 add_compat strtod.o strtod=avpriv_strtod

  5329.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5330.                                              _snprintf=avpriv_snprintf  \

  5331.                                              vsnprintf=avpriv_vsnprintf

  5332.             fi

  5333.         fi

  5334.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5335.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5336.         # 0x601 by default unless something else is set by the user.

  5337.         # This can easily lead to us detecting functions only present

  5338.         # in such new versions and producing binaries requiring windows 7.0.

  5339.         # Therefore explicitly set the default to Vista unless the user has

  5340.         # set something else on the command line.

  5341.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5342.         # family. For these cases, configure is free to use any functions

  5343.         # found in the SDK headers by default. (Alternatively, we could force

  5344.         # _WIN32_WINNT to 0x0602 in that case.)

  5345.         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5346.             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }

  5347. #ifdef WINAPI_FAMILY

  5348. #include <winapifamily.h>

  5349. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5350. #error not desktop

  5351. #endif

  5352. #endif

  5353. EOF

  5354.         if [ "$pfx" = "" ]; then

  5355.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5356.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5357.         fi

  5358.     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5359.         eval ${pfx}libc_type=klibc

  5360.     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5361.         eval ${pfx}libc_type=bionic

  5362.     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5363.         eval ${pfx}libc_type=solaris

  5364.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5365.     fi

  5366.     test_${pfx}cc <<EOF

  5367. #include <time.h>

  5368. void *v = localtime_r;

  5369. EOF

  5370. 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

  5371. #include <time.h>

  5372. void *v = localtime_r;

  5373. EOF

  5374. 

  5375.     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}

  5376. }

  5377. 

  5378. probe_libc

  5379. probe_libc host_

  5380. 

  5381. # hacks for compiler/libc/os combinations

  5382. 

  5383. case $libc_type in

  5384.     bionic)

  5385.         add_compat strtod.o strtod=avpriv_strtod

  5386.         ;;

  5387. esac

  5388. 

  5389. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5390.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5391. 

  5392. test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5393. 

  5394. set_default libdir

  5395. : ${shlibdir_default:="$libdir"}

  5396. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5397. 

  5398. set_default $PATHS_LIST

  5399. set_default nm

  5400. 

  5401. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5402. 

  5403. enable_weak_pic() {

  5404.     disabled pic && return

  5405.     enable pic

  5406.     add_cppflags -DPIC

  5407.     case "$target_os" in

  5408.     mingw*|cygwin*|win*)

  5409.         ;;

  5410.     *)

  5411.         add_cflags -fPIC

  5412.         add_asflags -fPIC

  5413.         ;;

  5414.     esac

  5415. }

  5416. 

  5417. enabled pic && enable_weak_pic

  5418. 

  5419. test_cc <<EOF || die "Symbol mangling check failed."

  5420. int ff_extern;

  5421. EOF

  5422. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5423. extern_prefix=${sym%%ff_extern*}

  5424. 

  5425. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5426. 

  5427. for restrict_keyword in restrict __restrict__ __restrict ""; do

  5428.     test_code cc "" "char * $restrict_keyword p" && break

  5429. done

  5430. 

  5431. check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'

  5432. 

  5433. # The global variable ensures the bits appear unchanged in the object file.

  5434. test_cc <<EOF || die "endian test failed"

  5435. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5436. EOF

  5437. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5438. 

  5439. check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"

  5440. 

  5441. if ! enabled ppc64 || enabled bigendian; then

  5442.     disable vsx

  5443. fi

  5444. 

  5445. check_gas() {

  5446.     log "check_gas using '$as' as AS"

  5447.     # :vararg is used on aarch64, arm and ppc altivec

  5448.     check_as vararg "

  5449. .macro m n, y:vararg=0

  5450. \n: .int \y

  5451. .endm

  5452. m x" || return 1

  5453.     # .altmacro is only used in arm asm

  5454.     ! enabled arm || check_as gnu_as ".altmacro"

  5455. }

  5456. 

  5457. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5458.     nogas=:

  5459.     enabled_any arm aarch64 && nogas=die

  5460.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5461.     as_noop=-v

  5462. 

  5463.     case $as_type in

  5464.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5465.         gcc)  gaspp_as_type=gas ;;

  5466.         *)    gaspp_as_type=$as_type ;;

  5467.     esac

  5468. 

  5469.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5470. 

  5471.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5472.     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5473.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5474. 

  5475.     if ! check_gas ; then

  5476.         as=${gas:=$as}

  5477.         check_gas || \

  5478.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5479.     fi

  5480. 

  5481.     check_as as_func ".func test

  5482.                       .endfunc"

  5483. fi

  5484. 

  5485. check_inline_asm inline_asm_labels '"1:\n"'

  5486. 

  5487. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5488. 

  5489. if enabled aarch64; then

  5490.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5491.     # internal assembler in clang 3.3 does not support this instruction

  5492.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5493.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5494. 

  5495.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5496. 

  5497. elif enabled alpha; then

  5498. 

  5499.     check_cflags -mieee

  5500. 

  5501. elif enabled arm; then

  5502. 

  5503.     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"

  5504.     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb

  5505. float func(float a, float b){ return a+b; }

  5506. EOF

  5507.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5508. 

  5509.     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then

  5510.         :

  5511.     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5512.         :

  5513.     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5514.         case "${cross_prefix:-$cc}" in

  5515.             *hardfloat*) enable vfp_args; fpabi=vfp ;;

  5516.             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;

  5517. __asm__ (".eabi_attribute 28, 1");

  5518. int main(void) { return 0; }

  5519. EOF

  5520.         esac

  5521.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5522.     fi

  5523. 

  5524.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5525.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5526.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5527.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5528.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5529.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5530.     enabled setend  && check_insn setend  'setend be'

  5531. 

  5532.     [ $target_os = linux ] || [ $target_os = android ] ||

  5533.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5534.             $ARCH_EXT_LIST_ARM

  5535. 

  5536.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5537. 

  5538.     check_as as_arch_directive ".arch armv7-a"

  5539.     check_as as_dn_directive   "ra .dn d0.i16"

  5540.     check_as as_fpu_directive  ".fpu neon"

  5541. 

  5542.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5543.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5544.         check_as as_object_arch ".object_arch armv4"

  5545. 

  5546.     # MS armasm fails to assemble our PIC constructs

  5547.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5548. 

  5549. elif enabled mips; then

  5550. 

  5551.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5552.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5553.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5554. 

  5555.     # Enable minimum ISA based on selected options

  5556.     if enabled mips64; then

  5557.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5558.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5559.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5560.     else

  5561.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5562.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5563.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5564.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5565.     fi

  5566. 

  5567.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5568.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5569.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5570.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5571.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5572. 

  5573.     if enabled bigendian && enabled msa; then

  5574.         disable msa

  5575.     fi

  5576. 

  5577. elif enabled parisc; then

  5578. 

  5579.     if enabled gcc; then

  5580.         case $($cc -dumpversion) in

  5581.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5582.         esac

  5583.     fi

  5584. 

  5585. elif enabled ppc; then

  5586. 

  5587.     enable local_aligned

  5588. 

  5589.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5590.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5591.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5592.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5593. 

  5594.     if enabled altivec; then

  5595.         check_cflags -maltivec -mabi=altivec

  5596. 

  5597.         # check if our compiler supports Motorola AltiVec C API

  5598.         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };

  5599.                                     vector signed int v2 = (vector signed int) { 1 };

  5600.                                     v1 = vec_add(v1, v2);"

  5601. 

  5602.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5603.     fi

  5604. 

  5605.     if enabled vsx; then

  5606.         check_cflags -mvsx &&

  5607.         check_cc vsx altivec.h "int v[4] = { 0 };

  5608.                                 vector signed int v1 = vec_vsx_ld(0, v);"

  5609.     fi

  5610. 

  5611.     if enabled power8; then

  5612.         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"

  5613.     fi

  5614. 

  5615. elif enabled x86; then

  5616. 

  5617.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5618.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5619. 

  5620.     enable local_aligned

  5621. 

  5622.     # check whether EBP is available on x86

  5623.     # As 'i' is stored on the stack, this program will crash

  5624.     # if the base pointer is used to access it because the

  5625.     # base pointer is cleared in the inline assembly code.

  5626.     check_exec_crash <<EOF && enable ebp_available

  5627. volatile int i=0;

  5628. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5629. return i;

  5630. EOF

  5631. 

  5632.     # check whether EBX is available on x86

  5633.     check_inline_asm ebx_available '""::"b"(0)' &&

  5634.         check_inline_asm ebx_available '"":::"%ebx"'

  5635. 

  5636.     # check whether xmm clobbers are supported

  5637.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5638. 

  5639.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5640.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5641. 

  5642.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5643.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5644.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5645. 

  5646.     probe_x86asm(){

  5647.         x86asmexe_probe=$1

  5648.         if test_cmd $x86asmexe_probe -v; then

  5649.             x86asmexe=$x86asmexe_probe

  5650.             x86asm_type=nasm

  5651.             x86asm_debug="-g -F dwarf"

  5652.             X86ASMDEP=

  5653.             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5654.         elif test_cmd $x86asmexe_probe --version; then

  5655.             x86asmexe=$x86asmexe_probe

  5656.             x86asm_type=yasm

  5657.             x86asm_debug="-g dwarf2"

  5658.             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5659.             X86ASM_DEPFLAGS=

  5660.         fi

  5661.         check_x86asm x86asm "movbe ecx, [5]"

  5662.     }

  5663. 

  5664.     if ! disabled_any asm mmx x86asm; then

  5665.         disable x86asm

  5666.         for program in $x86asmexe nasm yasm; do

  5667.             probe_x86asm $program && break

  5668.         done

  5669.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5670.         X86ASMFLAGS="-f $objformat"

  5671.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5672.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5673.         case "$objformat" in

  5674.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5675.         esac

  5676. 

  5677.         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"

  5678.         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"

  5679.         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"

  5680.         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"

  5681.         check_x86asm cpunop          "CPU amdnop"

  5682.     fi

  5683. 

  5684.     case "$cpu" in

  5685.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5686.             disable fast_clz

  5687.         ;;

  5688.     esac

  5689. 

  5690. fi

  5691. 

  5692. check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"

  5693. 

  5694. check_ldflags -Wl,--as-needed

  5695. check_ldflags -Wl,-z,noexecstack

  5696. 

  5697. if ! disabled network; then

  5698.     check_func getaddrinfo $network_extralibs

  5699.     check_func inet_aton $network_extralibs

  5700. 

  5701.     check_type netdb.h "struct addrinfo"

  5702.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5703.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5704.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5705.     check_type poll.h "struct pollfd"

  5706.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5707.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5708.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5709.     check_type netinet/in.h "struct sockaddr_in6"

  5710.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5711.     check_type "sys/types.h sys/socket.h" socklen_t

  5712. 

  5713.     # Prefer arpa/inet.h over winsock2

  5714.     if check_header arpa/inet.h ; then

  5715.         check_func closesocket

  5716.     elif check_header winsock2.h ; then

  5717.         check_func_headers winsock2.h closesocket -lws2 &&

  5718.             network_extralibs="-lws2" ||

  5719.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5720.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5721.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5722. 

  5723.         check_type ws2tcpip.h socklen_t

  5724.         check_type ws2tcpip.h "struct addrinfo"

  5725.         check_type ws2tcpip.h "struct group_source_req"

  5726.         check_type ws2tcpip.h "struct ip_mreq_source"

  5727.         check_type ws2tcpip.h "struct ipv6_mreq"

  5728.         check_type winsock2.h "struct pollfd"

  5729.         check_struct winsock2.h "struct sockaddr" sa_len

  5730.         check_type ws2tcpip.h "struct sockaddr_in6"

  5731.         check_type ws2tcpip.h "struct sockaddr_storage"

  5732.     else

  5733.         disable network

  5734.     fi

  5735. fi

  5736. 

  5737. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5738. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5739. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5740. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5741. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5742. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5743. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5744. 

  5745. case "$custom_allocator" in

  5746.     jemalloc)

  5747.         # jemalloc by default does not use a prefix

  5748.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5749.     ;;

  5750.     tcmalloc)

  5751.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5752.         malloc_prefix=tc_

  5753.     ;;

  5754. esac

  5755. 

  5756. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5757. check_func  ${malloc_prefix}memalign            && enable memalign

  5758. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5759. 

  5760. check_func  access

  5761. check_func_headers stdlib.h arc4random

  5762. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5763. check_func  fcntl

  5764. check_func  fork

  5765. check_func  gethrtime

  5766. check_func  getopt

  5767. check_func  getrusage

  5768. check_func  gettimeofday

  5769. check_func  isatty

  5770. check_func  mkstemp

  5771. check_func  mmap

  5772. check_func  mprotect

  5773. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5774. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5775. check_func  sched_getaffinity

  5776. check_func  setrlimit

  5777. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5778. check_func  strerror_r

  5779. check_func  sysconf

  5780. check_func  sysctl

  5781. check_func  usleep

  5782. 

  5783. check_func_headers conio.h kbhit

  5784. check_func_headers io.h setmode

  5785. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5786. check_func_headers mach/mach_time.h mach_absolute_time

  5787. check_func_headers stdlib.h getenv

  5788. check_func_headers sys/stat.h lstat

  5789. 

  5790. check_func_headers windows.h GetProcessAffinityMask

  5791. check_func_headers windows.h GetProcessTimes

  5792. check_func_headers windows.h GetSystemTimeAsFileTime

  5793. check_func_headers windows.h LoadLibrary

  5794. check_func_headers windows.h MapViewOfFile

  5795. check_func_headers windows.h PeekNamedPipe

  5796. check_func_headers windows.h SetConsoleTextAttribute

  5797. check_func_headers windows.h SetConsoleCtrlHandler

  5798. check_func_headers windows.h Sleep

  5799. check_func_headers windows.h VirtualAlloc

  5800. check_func_headers glob.h glob

  5801. enabled xlib &&

  5802.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5803. 

  5804. check_header direct.h

  5805. check_header dirent.h

  5806. check_header dxgidebug.h

  5807. check_header dxva.h

  5808. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5809. check_header io.h

  5810. check_header linux/perf_event.h

  5811. check_header libcrystalhd/libcrystalhd_if.h

  5812. check_header malloc.h

  5813. check_header net/udplite.h

  5814. check_header poll.h

  5815. check_header sys/param.h

  5816. check_header sys/resource.h

  5817. check_header sys/select.h

  5818. check_header sys/time.h

  5819. check_header sys/un.h

  5820. check_header termios.h

  5821. check_header unistd.h

  5822. check_header valgrind/valgrind.h

  5823. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5824. check_header windows.h

  5825. check_header X11/extensions/XvMClib.h

  5826. check_header asm/types.h

  5827. 

  5828. # it seems there are versions of clang in some distros that try to use the

  5829. # gcc headers, which explodes for stdatomic

  5830. # so we also check that atomics actually work here

  5831. check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"

  5832. 

  5833. check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32

  5834. check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&

  5835.     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"

  5836. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5837. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5838. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5839. 

  5840. check_lib android android/native_window.h ANativeWindow_acquire -landroid

  5841. check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk

  5842. check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk

  5843. 

  5844. enabled appkit       && check_apple_framework AppKit

  5845. enabled audiotoolbox && check_apple_framework AudioToolbox

  5846. enabled avfoundation && check_apple_framework AVFoundation

  5847. enabled coreimage    && check_apple_framework CoreImage

  5848. enabled videotoolbox && check_apple_framework VideoToolbox

  5849. 

  5850. check_apple_framework CoreFoundation

  5851. check_apple_framework CoreMedia

  5852. check_apple_framework CoreVideo

  5853. 

  5854. enabled avfoundation && {

  5855.     disable coregraphics applicationservices

  5856.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5857.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5858. 

  5859. enabled videotoolbox && {

  5860.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5861.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5862. }

  5863. 

  5864. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5865. 

  5866. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5867. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5868. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5869. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5870. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5871. 

  5872. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5873. check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"

  5874. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5875. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5876. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5877. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5878. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5879. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5880. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5881. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5882. 

  5883. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5884. 

  5885. if ! disabled ffnvcodec; then

  5886.     check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.1" \

  5887.         "ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h" ""

  5888. fi

  5889. 

  5890. check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"

  5891. 

  5892. if ! disabled w32threads && ! enabled pthreads; then

  5893.     check_func_headers "windows.h process.h" _beginthreadex &&

  5894.         check_type "windows.h" CONDITION_VARIABLE &&

  5895.         check_type "windows.h" INIT_ONCE &&

  5896.         enable w32threads || disable w32threads

  5897.     if ! enabled w32threads && enabled winrt; then

  5898.         check_func_headers "windows.h" CreateThread &&

  5899.             enable w32threads || disable w32threads

  5900.     fi

  5901. fi

  5902. 

  5903. # check for some common methods of building with pthread support

  5904. # do this before the optional library checks as some of them require pthreads

  5905. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5906.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5907.        check_lib pthreads pthread.h pthread_create -pthread; then

  5908.         add_cflags -pthread

  5909.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5910.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5911.         add_cflags -pthreads

  5912.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5913.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5914.         add_cflags -ldl -pthread

  5915.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5916.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5917.         :

  5918.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5919.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5920.         :

  5921.     elif check_func pthread_join && check_func pthread_create; then

  5922.         enable pthreads

  5923.     fi

  5924.     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"

  5925. 

  5926.     if enabled pthreads; then

  5927.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5928.         check_func pthread_cancel $pthreads_extralibs

  5929.     fi

  5930. fi

  5931. 

  5932. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5933. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5934. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5935. 

  5936. # On some systems dynamic loading requires no extra linker flags

  5937. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5938. 

  5939. check_lib libm math.h sin -lm

  5940. 

  5941. atan2f_args=2

  5942. copysign_args=2

  5943. hypot_args=2

  5944. ldexpf_args=2

  5945. powf_args=2

  5946. 

  5947. for func in $MATH_FUNCS; do

  5948.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5949. done

  5950. 

  5951. for func in $COMPLEX_FUNCS; do

  5952.     eval check_complexfunc $func \${${func}_args:-1}

  5953. done

  5954. 

  5955. # these are off by default, so fail if requested and not available

  5956. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5957. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5958. enabled decklink          && { require_header DeckLinkAPI.h &&

  5959.                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5960. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5961. enabled frei0r            && require_header frei0r.h

  5962. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5963. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5964. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5965. enabled ladspa            && require_header ladspa.h

  5966. enabled libaom            && require_pkg_config libaom "aom >= 0.1.0" aom/aom_codec.h aom_codec_version

  5967. enabled lv2               && require_pkg_config lv2 lilv-0 "lilv-0/lilv/lilv.h" lilv_world_new

  5968. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5969. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5970. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5971. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5972. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5973.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5974.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5975. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5976. enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2

  5977. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5978. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5979. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5980.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5981.                                  warn "using libfdk without pkg-config"; } }

  5982. 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"

  5983. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5984. enabled fontconfig        && enable libfontconfig

  5985. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5986. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5987. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5988. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5989.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5990. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5991.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5992.                                done || die "ERROR: libgsm not found"; }

  5993. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5994. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5995. # While it may appear that require is being used as a pkg-config

  5996. # fallback for libmfx, it is actually being used to detect a different

  5997. # installation route altogether.  If libmfx is installed via the Intel

  5998. # Media SDK or Intel Media Server Studio, these don't come with

  5999. # pkg-config support.  Instead, users should make sure that the build

  6000. # can find the libraries and headers through other means.

  6001. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  6002.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  6003. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  6004. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs

  6005. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  6006. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  6007.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  6008.                                die "ERROR: libnpp not found"; }

  6009. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  6010. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  6011. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  6012.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  6013.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  6014.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  6015. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  6016. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  6017.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  6018. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  6019. enabled libopus           && {

  6020.     enabled libopus_decoder && {

  6021.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  6022.     }

  6023.     enabled libopus_encoder && {

  6024.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  6025.     }

  6026. }

  6027. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  6028. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  6029. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  6030. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  6031. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  6032. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  6033.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  6034. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  6035. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  6036. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  6037. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  6038. enabled libsrt            && require_pkg_config libsrt "srt >= 1.2.0" srt/srt.h srt_socket

  6039. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  6040. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  6041. enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure

  6042. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  6043.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  6044.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  6045. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  6046. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  6047. enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 0.6.2" libvmaf.h compute_vmaf

  6048. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  6049. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  6050.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  6051. 

  6052. enabled libvpx            && {

  6053.     enabled libvpx_vp8_decoder && {

  6054.         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  6055.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  6056.                 die "ERROR: libvpx decoder version must be >=1.4.0";

  6057.     }

  6058.     enabled libvpx_vp8_encoder && {

  6059.         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  6060.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  6061.                 die "ERROR: libvpx encoder version must be >=1.4.0";

  6062.     }

  6063.     enabled libvpx_vp9_decoder && {

  6064.         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  6065.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  6066.     }

  6067.     enabled libvpx_vp9_encoder && {

  6068.         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  6069.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  6070.     }

  6071.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  6072.         die "libvpx enabled but no supported decoders found"

  6073.     fi

  6074. }

  6075. 

  6076. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  6077. enabled libwebp           && {

  6078.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  6079.     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  6080. enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  6081.                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&

  6082.                                  warn "using libx264 without pkg-config"; } } &&

  6083.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  6084.                              check_cpp_condition libx262 x264.h "X264_MPEG2"

  6085. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  6086.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  6087. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  6088. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  6089. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version

  6090. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  6091. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  6092.                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  6093.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  6094. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  6095. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  6096. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  6097.                                { ! enabled cross_compile &&

  6098.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  6099.                                  add_ldflags -L/opt/vc/lib/ &&

  6100.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  6101.                                die "ERROR: mmal not found" &&

  6102.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  6103. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  6104.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  6105.                                die "ERROR: openal not found"; } &&

  6106.                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  6107.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  6108. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  6109.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  6110.                                die "ERROR: opencl not found"; } &&

  6111.                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  6112.                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  6113.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  6114. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  6115.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  6116.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6117.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6118.                                die "ERROR: opengl not found."

  6119.                              }

  6120. enabled omx               && require_header OMX_Core.h

  6121. enabled omx_rpi           && { check_header OMX_Core.h ||

  6122.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6123.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  6124. enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  6125.                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  6126.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6127.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6128.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6129.                                die "ERROR: openssl not found"; }

  6130. enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&

  6131.                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&

  6132.                                { enabled libdrm ||

  6133.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  6134.                              }

  6135. 

  6136. if enabled gcrypt; then

  6137.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6138.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6139.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6140.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6141.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6142.             die "ERROR: gcrypt not found"

  6143.         add_cflags $gcrypt_cflags

  6144.     else

  6145.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6146.     fi

  6147. fi

  6148. 

  6149. if enabled sdl2; then

  6150.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6151.     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent

  6152.     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6153.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6154.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6155.         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6156.         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6157.         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&

  6158.             enable sdl2

  6159.     fi

  6160.     if test $target_os = "mingw32"; then

  6161.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6162.     fi

  6163. fi

  6164. 

  6165. if enabled decklink; then

  6166.     case $target_os in

  6167.         mingw32*|mingw64*|win32|win64)

  6168.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6169.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6170.             ;;

  6171.     esac

  6172. fi

  6173. 

  6174. enabled securetransport &&

  6175.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6176.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6177.         disable securetransport

  6178. 

  6179. enabled securetransport &&

  6180.     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"

  6181. 

  6182. enabled schannel &&

  6183.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6184.     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6185.     schannel_extralibs="-lsecur32" ||

  6186.         disable schannel

  6187. 

  6188. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6189. enabled makeinfo \

  6190.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6191.     && enable makeinfo_html || disable makeinfo_html

  6192. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6193. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6194. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6195. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6196. 

  6197. # check V4L2 codecs available in the API

  6198. check_header linux/fb.h

  6199. check_header linux/videodev2.h

  6200. test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6201. check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"

  6202. check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"

  6203. check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"

  6204. check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"

  6205. check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"

  6206. check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"

  6207. check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"

  6208. check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"

  6209. check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"

  6210. check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"

  6211. 

  6212. check_header sys/videoio.h

  6213. test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6214. 

  6215. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6216. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6217. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6218. # w32api 3.12 had it defined wrong

  6219. check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"

  6220. 

  6221. check_type "dshow.h" IBaseFilter

  6222. 

  6223. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6224. check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||

  6225.     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||

  6226.     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||

  6227.     check_header "dev/ic/bt8xx.h"

  6228. 

  6229. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6230.     enable_sanitized sys/soundcard.h

  6231. else

  6232.     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6233.     #include <sys/soundcard.h>

  6234.     audio_buf_info abc;

  6235. EOF

  6236. fi

  6237. 

  6238. enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6239.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6240. 

  6241. enabled libjack &&

  6242.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6243. 

  6244. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6245. 

  6246. if enabled libcdio; then

  6247.     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6248.     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6249.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6250.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6251.     die "ERROR: No usable libcdio/cdparanoia found"

  6252. fi

  6253. 

  6254. enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6255.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6256. 

  6257. if enabled libxcb; then

  6258.     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6259.     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6260.     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6261. fi

  6262. 

  6263. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6264. 

  6265. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6266. # the desktop api partition

  6267. test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6268. #ifdef WINAPI_FAMILY

  6269. #include <winapifamily.h>

  6270. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6271. #error desktop, not uwp

  6272. #else

  6273. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6274. #endif

  6275. #else

  6276. #error no family set

  6277. #endif

  6278. EOF

  6279. 

  6280. enabled vaapi &&

  6281.     check_lib vaapi va/va.h vaInitialize -lva

  6282. 

  6283. enabled vaapi &&

  6284.     check_cc vaapi "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)"

  6285. 

  6286. if enabled vaapi; then

  6287.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6288.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6289. fi

  6290. 

  6291. enabled vaapi &&

  6292.     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"

  6293. 

  6294. if enabled_all opencl libdrm ; then

  6295.     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&

  6296.         enable opencl_drm_beignet

  6297.     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&

  6298.         enable opencl_drm_arm

  6299. fi

  6300. 

  6301. if enabled_all opencl vaapi ; then

  6302.     enabled opencl_drm_beignet && enable opencl_vaapi_beignet

  6303.     if enabled libmfx ; then

  6304.         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&

  6305.             enable opencl_vaapi_intel_media

  6306.     fi

  6307. fi

  6308. 

  6309. if enabled_all opencl dxva2 ; then

  6310.     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&

  6311.         enable opencl_dxva2

  6312. fi

  6313. 

  6314. if enabled_all opencl d3d11va ; then

  6315.     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&

  6316.         enable opencl_d3d11

  6317. fi

  6318. 

  6319. enabled vdpau &&

  6320.     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"

  6321. 

  6322. enabled vdpau &&

  6323.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6324. 

  6325. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6326. 

  6327. if enabled x86; then

  6328.     case $target_os in

  6329.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6330.             ;;

  6331.         *)

  6332.             disable ffnvcodec cuvid nvdec nvenc

  6333.             ;;

  6334.     esac

  6335. else

  6336.     disable ffnvcodec cuvid nvdec nvenc

  6337. fi

  6338. 

  6339. enabled ffnvcodec && enable cuda

  6340. 

  6341. enabled nvenc &&

  6342.     test_cc -I$source_path <<EOF || disable nvenc

  6343. #include <ffnvcodec/nvEncodeAPI.h>

  6344. NV_ENCODE_API_FUNCTION_LIST flist;

  6345. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6346. int main(void) { return 0; }

  6347. EOF

  6348. 

  6349. enabled amf &&

  6350.     check_cpp_condition amf "AMF/core/Version.h" \

  6351.         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"

  6352. 

  6353. # Funny iconv installations are not unusual, so check it after all flags have been set

  6354. if enabled libc_iconv; then

  6355.     check_func_headers iconv.h iconv

  6356. elif enabled iconv; then

  6357.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6358. fi

  6359. 

  6360. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6361. 

  6362. # add some useful compiler flags if supported

  6363. check_cflags -Wdeclaration-after-statement

  6364. check_cflags -Wall

  6365. check_cflags -Wdisabled-optimization

  6366. check_cflags -Wpointer-arith

  6367. check_cflags -Wredundant-decls

  6368. check_cflags -Wwrite-strings

  6369. check_cflags -Wtype-limits

  6370. check_cflags -Wundef

  6371. check_cflags -Wmissing-prototypes

  6372. check_cflags -Wno-pointer-to-int-cast

  6373. check_cflags -Wstrict-prototypes

  6374. check_cflags -Wempty-body

  6375. 

  6376. if enabled extra_warnings; then

  6377.     check_cflags -Wcast-qual

  6378.     check_cflags -Wextra

  6379.     check_cflags -Wpedantic

  6380. fi

  6381. 

  6382. check_disable_warning(){

  6383.     warning_flag=-W${1#-Wno-}

  6384.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6385. }

  6386. 

  6387. test_cflags -Werror=unused-command-line-argument &&

  6388.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6389. test_cflags -Werror=unknown-warning-option &&

  6390.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6391. 

  6392. check_disable_warning -Wno-parentheses

  6393. check_disable_warning -Wno-switch

  6394. check_disable_warning -Wno-format-zero-length

  6395. check_disable_warning -Wno-pointer-sign

  6396. check_disable_warning -Wno-unused-const-variable

  6397. check_disable_warning -Wno-bool-operation

  6398. 

  6399. check_disable_warning_headers(){

  6400.     warning_flag=-W${1#-Wno-}

  6401.     test_cflags $warning_flag && add_cflags_headers $1

  6402. }

  6403. 

  6404. check_disable_warning_headers -Wno-deprecated-declarations

  6405. check_disable_warning_headers -Wno-unused-variable

  6406. 

  6407. test_cc <<EOF && enable blocks_extension

  6408. void (^block)(void);

  6409. EOF

  6410. 

  6411. # add some linker flags

  6412. check_ldflags -Wl,--warn-common

  6413. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6414. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6415. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6416. 

  6417. # add some strip flags

  6418. check_stripflags -x

  6419. 

  6420. enabled neon_clobber_test &&

  6421.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6422.                   -Wl,--wrap,avcodec_decode_audio4      \

  6423.                   -Wl,--wrap,avcodec_decode_video2      \

  6424.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6425.                   -Wl,--wrap,avcodec_encode_audio2      \

  6426.                   -Wl,--wrap,avcodec_encode_video2      \

  6427.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6428.                   -Wl,--wrap,avcodec_send_packet        \

  6429.                   -Wl,--wrap,avcodec_receive_packet     \

  6430.                   -Wl,--wrap,avcodec_send_frame         \

  6431.                   -Wl,--wrap,avcodec_receive_frame      \

  6432.                   -Wl,--wrap,swr_convert                \

  6433.                   -Wl,--wrap,avresample_convert ||

  6434.     disable neon_clobber_test

  6435. 

  6436. enabled xmm_clobber_test &&

  6437.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6438.                   -Wl,--wrap,avcodec_decode_audio4      \

  6439.                   -Wl,--wrap,avcodec_decode_video2      \

  6440.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6441.                   -Wl,--wrap,avcodec_encode_audio2      \

  6442.                   -Wl,--wrap,avcodec_encode_video2      \

  6443.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6444.                   -Wl,--wrap,avcodec_send_packet        \

  6445.                   -Wl,--wrap,avcodec_receive_packet     \

  6446.                   -Wl,--wrap,avcodec_send_frame         \

  6447.                   -Wl,--wrap,avcodec_receive_frame      \

  6448.                   -Wl,--wrap,swr_convert                \

  6449.                   -Wl,--wrap,avresample_convert         \

  6450.                   -Wl,--wrap,sws_scale ||

  6451.     disable xmm_clobber_test

  6452. 

  6453. check_ld "cc" proper_dce <<EOF

  6454. extern const int array[512];

  6455. static inline int func(void) { return array[0]; }

  6456. int main(void) { return 0; }

  6457. EOF

  6458. 

  6459. if enabled proper_dce; then

  6460.     echo "X { local: *; };" > $TMPV

  6461.     if test_ldflags -Wl,${version_script},$TMPV; then

  6462.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6463.         quotes='""'

  6464.         test_cc <<EOF && enable symver_asm_label

  6465. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6466. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6467. EOF

  6468.         test_cc <<EOF && enable symver_gnu_asm

  6469. __asm__(".symver ff_foo,av_foo@VERSION");

  6470. void ff_foo(void) {}

  6471. EOF

  6472.     fi

  6473. fi

  6474. 

  6475. if [ -z "$optflags" ]; then

  6476.     if enabled small; then

  6477.         optflags=$cflags_size

  6478.     elif enabled optimizations; then

  6479.         optflags=$cflags_speed

  6480.     else

  6481.         optflags=$cflags_noopt

  6482.     fi

  6483. fi

  6484. 

  6485. if [ -z "$nvccflags" ]; then

  6486.     nvccflags=$nvccflags_default

  6487. fi

  6488. 

  6489. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6490.     nvccflags="$nvccflags -m64"

  6491. else

  6492.     nvccflags="$nvccflags -m32"

  6493. fi

  6494. 

  6495. check_optflags(){

  6496.     check_cflags "$@"

  6497.     enabled lto && check_ldflags "$@"

  6498. }

  6499. 

  6500. check_optflags $optflags

  6501. check_optflags -fno-math-errno

  6502. check_optflags -fno-signed-zeros

  6503. 

  6504. if enabled lto; then

  6505.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6506.     check_cflags  -flto

  6507.     check_ldflags -flto $cpuflags

  6508.     disable inline_asm_direct_symbol_refs

  6509. fi

  6510. 

  6511. enabled ftrapv && check_cflags -ftrapv

  6512. 

  6513. test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6514. int x;

  6515. EOF

  6516. 

  6517. 

  6518. if enabled icc; then

  6519.     # Just warnings, no remarks

  6520.     check_cflags -w1

  6521.     # -wd: Disable following warnings

  6522.     # 144, 167, 556: -Wno-pointer-sign

  6523.     # 188: enumerated type mixed with another type

  6524.     # 1292: attribute "foo" ignored

  6525.     # 1419: external declaration in primary source file

  6526.     # 10006: ignoring unknown option -fno-signed-zeros

  6527.     # 10148: ignoring unknown option -Wno-parentheses

  6528.     # 10156: ignoring option '-W'; no argument required

  6529.     # 13200: No EMMS instruction before call to function

  6530.     # 13203: No EMMS instruction before return from function

  6531.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6532.     # 11030: Warning unknown option --as-needed

  6533.     # 10156: ignoring option '-export'; no argument required

  6534.     check_ldflags -wd10156,11030

  6535.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6536.     enable ebp_available

  6537.     # The test above does not test linking

  6538.     enabled lto && disable symver_asm_label

  6539.     if enabled x86_32; then

  6540.         icc_version=$($cc -dumpversion)

  6541.         test ${icc_version%%.*} -ge 11 &&

  6542.             check_cflags -falign-stack=maintain-16-byte ||

  6543.             disable aligned_stack

  6544.     fi

  6545. elif enabled gcc; then

  6546.     check_optflags -fno-tree-vectorize

  6547.     check_cflags -Werror=format-security

  6548.     check_cflags -Werror=implicit-function-declaration

  6549.     check_cflags -Werror=missing-prototypes

  6550.     check_cflags -Werror=return-type

  6551.     check_cflags -Werror=vla

  6552.     check_cflags -Wformat

  6553.     check_cflags -fdiagnostics-color=auto

  6554.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6555.     if enabled x86_32; then

  6556.         case $target_os in

  6557.         *bsd*)

  6558.             # BSDs don't guarantee a 16 byte aligned stack, but we can

  6559.             # request GCC to try to maintain 16 byte alignment throughout

  6560.             # function calls. Library entry points that might call assembly

  6561.             # functions align the stack. (The parameter means 2^4 bytes.)

  6562.             check_cflags -mpreferred-stack-boundary=4

  6563.             ;;

  6564.         esac

  6565.     fi

  6566. elif enabled llvm_gcc; then

  6567.     check_cflags -mllvm -stack-alignment=16

  6568. elif enabled clang; then

  6569.     if enabled x86_32; then

  6570.         # Clang doesn't support maintaining alignment without assuming the

  6571.         # same alignment in every function. If 16 byte alignment would be

  6572.         # enabled, one would also have to either add attribute_align_arg on

  6573.         # every single entry point into the libraries or enable -mstackrealign

  6574.         # (doing stack realignment in every single function).

  6575.         case $target_os in

  6576.         mingw32|win32|*bsd*)

  6577.             disable aligned_stack

  6578.             ;;

  6579.         *)

  6580.             check_cflags -mllvm -stack-alignment=16

  6581.             check_cflags -mstack-alignment=16

  6582.             ;;

  6583.         esac

  6584.     else

  6585.         check_cflags -mllvm -stack-alignment=16

  6586.         check_cflags -mstack-alignment=16

  6587.     fi

  6588.     check_cflags -Qunused-arguments

  6589.     check_cflags -Werror=implicit-function-declaration

  6590.     check_cflags -Werror=missing-prototypes

  6591.     check_cflags -Werror=return-type

  6592. elif enabled cparser; then

  6593.     add_cflags -Wno-missing-variable-declarations

  6594.     add_cflags -Wno-empty-statement

  6595. elif enabled armcc; then

  6596.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6597.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6598.     # 2523: use of inline assembly is deprecated

  6599.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6600.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6601.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6602.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6603.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6604.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6605. elif enabled pathscale; then

  6606.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6607.     disable inline_asm

  6608. elif enabled_any msvc icl; then

  6609.     enabled x86_32 && disable aligned_stack

  6610.     enabled_all x86_32 debug && add_cflags -Oy-

  6611.     enabled debug && add_ldflags -debug

  6612.     enable pragma_deprecated

  6613.     if enabled icl; then

  6614.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6615.         # (correctly) on icl 13.x.

  6616.         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6617.             add_cflags -Qansi-alias

  6618.         # Some inline asm is not compilable in debug

  6619.         if enabled debug; then

  6620.             disable ebp_available

  6621.             disable ebx_available

  6622.         fi

  6623.     fi

  6624.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6625.     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"

  6626.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6627.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6628.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6629.     # MSVC 2013 and newer can handle it fine.

  6630.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6631.     # happens in config.h.

  6632.     if [ $restrict_keyword != restrict ]; then

  6633.         test_cc <<EOF || add_cflags -FIstdlib.h

  6634. __declspec($restrict_keyword) void *foo(int);

  6635. EOF

  6636.     fi

  6637.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6638.     # Issue has been fixed in MSVC v19.00.24218.

  6639.     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6640.         check_cflags -d2SSAOptimizer-

  6641.     # enable utf-8 source processing on VS2015 U2 and newer

  6642.     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6643.         add_cflags -utf-8

  6644. fi

  6645. 

  6646. for pfx in "" host_; do

  6647.     varname=${pfx%_}cc_type

  6648.     eval "type=\$$varname"

  6649.     if [ "$type" = "msvc" ]; then

  6650.         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6651. static inline int foo(int a) { return a; }

  6652. EOF

  6653.     fi

  6654. done

  6655. 

  6656. case $as_type in

  6657.     clang)

  6658.         add_asflags -Qunused-arguments

  6659.     ;;

  6660. esac

  6661. 

  6662. case $ld_type in

  6663.     clang)

  6664.         check_ldflags -Qunused-arguments

  6665.     ;;

  6666. esac

  6667. 

  6668. enable frame_thread_encoder

  6669. 

  6670. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6671. 

  6672. check_deps $CONFIG_LIST       \

  6673.            $CONFIG_EXTRA      \

  6674.            $HAVE_LIST         \

  6675.            $ALL_COMPONENTS    \

  6676. 

  6677. 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"

  6678. enabled avresample && warn "Building with deprecated library libavresample"

  6679. 

  6680. if test $target_os = "haiku"; then

  6681.     disable memalign

  6682.     disable posix_memalign

  6683. fi

  6684. 

  6685. flatten_extralibs(){

  6686.     unset nested_entries

  6687.     list_name=$1

  6688.     eval list=\$${1}

  6689.     for entry in $list; do

  6690.         entry_copy=$entry

  6691.         resolve entry_copy

  6692.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6693.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6694.         eval $entry="\$flat_entries"

  6695.     done

  6696.     append $list_name "$nested_entries"

  6697. 

  6698.     resolve nested_entries

  6699.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6700.         flatten_extralibs $list_name

  6701.     fi

  6702. }

  6703. 

  6704. flatten_extralibs_wrapper(){

  6705.     list_name=$1

  6706.     flatten_extralibs $list_name

  6707.     unique $list_name

  6708.     resolve $list_name

  6709.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6710.     eval printf \''%s'\' \""\$$list_name"\"

  6711. }

  6712. 

  6713. for linkunit in $LIBRARY_LIST; do

  6714.     unset current_extralibs

  6715.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6716.     for comp in ${components}; do

  6717.         enabled $comp || continue

  6718.         comp_extralibs="${comp}_extralibs"

  6719.         append current_extralibs $comp_extralibs

  6720.     done

  6721.     eval prepend ${linkunit}_extralibs $current_extralibs

  6722. done

  6723. 

  6724. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6725.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6726. done

  6727. 

  6728. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6729. 

  6730. for thread in $THREADS_LIST; do

  6731.     if enabled $thread; then

  6732.         test -n "$thread_type" &&

  6733.             die "ERROR: Only one thread type must be selected." ||

  6734.             thread_type="$thread"

  6735.     fi

  6736. done

  6737. 

  6738. if disabled stdatomic; then

  6739.     if enabled atomics_gcc; then

  6740.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6741.     elif enabled atomics_win32; then

  6742.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6743.     elif enabled atomics_suncc; then

  6744.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6745.     elif enabled pthreads; then

  6746.         add_compat atomics/pthread/stdatomic.o

  6747.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6748.     else

  6749.         enabled threads && die "Threading is enabled, but no atomics are available"

  6750.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6751.     fi

  6752. fi

  6753. 

  6754. # Check if requested libraries were found.

  6755. for lib in $AUTODETECT_LIBS; do

  6756.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6757. done

  6758. 

  6759. enabled zlib && add_cppflags -DZLIB_CONST

  6760. 

  6761. # conditional library dependencies, in linking order

  6762. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6763. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6764. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6765. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6766. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6767. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6768. enabled convolve_filter     && prepend avfilter_deps "avcodec"

  6769. enabled deconvolve_filter   && prepend avfilter_deps "avcodec"

  6770. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6771. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6772. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6773. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6774. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6775. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6776. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6777. enabled pan_filter          && prepend avfilter_deps "swresample"

  6778. enabled pp_filter           && prepend avfilter_deps "postproc"

  6779. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6780. enabled resample_filter && prepend avfilter_deps "avresample"

  6781. enabled sab_filter          && prepend avfilter_deps "swscale"

  6782. enabled scale_filter    && prepend avfilter_deps "swscale"

  6783. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6784. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6785. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6786. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6787. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6788. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6789. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6790. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6791. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6792. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6793. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6794. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6795. 

  6796. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6797. 

  6798. #FIXME

  6799. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6800. 

  6801. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6802. 

  6803. expand_deps(){

  6804.     lib_deps=${1}_deps

  6805.     eval "deps=\$$lib_deps"

  6806.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6807.     unique $lib_deps

  6808. }

  6809. 

  6810. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6811. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6812. 

  6813. map 'expand_deps $v' $LIBRARY_LIST

  6814. 

  6815. if test "$quiet" != "yes"; then

  6816. 

  6817. echo "install prefix            $prefix"

  6818. echo "source path               $source_path"

  6819. echo "C compiler                $cc"

  6820. echo "C library                 $libc_type"

  6821. if test "$host_cc" != "$cc"; then

  6822.     echo "host C compiler           $host_cc"

  6823.     echo "host C library            $host_libc_type"

  6824. fi

  6825. echo "ARCH                      $arch ($cpu)"

  6826. if test "$build_suffix" != ""; then

  6827.     echo "build suffix              $build_suffix"

  6828. fi

  6829. if test "$progs_suffix" != ""; then

  6830.     echo "progs suffix              $progs_suffix"

  6831. fi

  6832. if test "$extra_version" != ""; then

  6833.     echo "version string suffix     $extra_version"

  6834. fi

  6835. echo "big-endian                ${bigendian-no}"

  6836. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6837. if enabled x86; then

  6838.     echo "standalone assembly       ${x86asm-no}"

  6839.     echo "x86 assembler             ${x86asmexe}"

  6840.     echo "MMX enabled               ${mmx-no}"

  6841.     echo "MMXEXT enabled            ${mmxext-no}"

  6842.     echo "3DNow! enabled            ${amd3dnow-no}"

  6843.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6844.     echo "SSE enabled               ${sse-no}"

  6845.     echo "SSSE3 enabled             ${ssse3-no}"

  6846.     echo "AESNI enabled             ${aesni-no}"

  6847.     echo "AVX enabled               ${avx-no}"

  6848.     echo "AVX2 enabled              ${avx2-no}"

  6849.     echo "AVX-512 enabled           ${avx512-no}"

  6850.     echo "XOP enabled               ${xop-no}"

  6851.     echo "FMA3 enabled              ${fma3-no}"

  6852.     echo "FMA4 enabled              ${fma4-no}"

  6853.     echo "i686 features enabled     ${i686-no}"

  6854.     echo "CMOV is fast              ${fast_cmov-no}"

  6855.     echo "EBX available             ${ebx_available-no}"

  6856.     echo "EBP available             ${ebp_available-no}"

  6857. fi

  6858. if enabled aarch64; then

  6859.     echo "NEON enabled              ${neon-no}"

  6860.     echo "VFP enabled               ${vfp-no}"

  6861. fi

  6862. if enabled arm; then

  6863.     echo "ARMv5TE enabled           ${armv5te-no}"

  6864.     echo "ARMv6 enabled             ${armv6-no}"

  6865.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6866.     echo "VFP enabled               ${vfp-no}"

  6867.     echo "NEON enabled              ${neon-no}"

  6868.     echo "THUMB enabled             ${thumb-no}"

  6869. fi

  6870. if enabled mips; then

  6871.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6872.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6873.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6874.     echo "MIPS MSA enabled          ${msa-no}"

  6875.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6876. fi

  6877. if enabled ppc; then

  6878.     echo "AltiVec enabled           ${altivec-no}"

  6879.     echo "VSX enabled               ${vsx-no}"

  6880.     echo "POWER8 enabled            ${power8-no}"

  6881.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6882.     echo "dcbzl available           ${dcbzl-no}"

  6883. fi

  6884. echo "debug symbols             ${debug-no}"

  6885. echo "strip symbols             ${stripping-no}"

  6886. echo "optimize for size         ${small-no}"

  6887. echo "optimizations             ${optimizations-no}"

  6888. echo "static                    ${static-no}"

  6889. echo "shared                    ${shared-no}"

  6890. echo "postprocessing support    ${postproc-no}"

  6891. echo "network support           ${network-no}"

  6892. echo "threading support         ${thread_type-no}"

  6893. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6894. echo "texi2html enabled         ${texi2html-no}"

  6895. echo "perl enabled              ${perl-no}"

  6896. echo "pod2man enabled           ${pod2man-no}"

  6897. echo "makeinfo enabled          ${makeinfo-no}"

  6898. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6899. test -n "$random_seed" &&

  6900.     echo "random seed               ${random_seed}"

  6901. echo

  6902. 

  6903. echo "External libraries:"

  6904. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6905. echo

  6906. 

  6907. echo "External libraries providing hardware acceleration:"

  6908. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6909. echo

  6910. 

  6911. echo "Libraries:"

  6912. print_enabled '' $LIBRARY_LIST | print_in_columns

  6913. echo

  6914. 

  6915. echo "Programs:"

  6916. print_enabled '' $PROGRAM_LIST | print_in_columns

  6917. echo

  6918. 

  6919. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6920.     echo "Enabled ${type}s:"

  6921.     eval list=\$$(toupper $type)_LIST

  6922.     print_enabled '_*' $list | print_in_columns

  6923.     echo

  6924. done

  6925. 

  6926. if test -n "$ignore_tests"; then

  6927.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6928.     echo "Ignored FATE tests:"

  6929.     echo $ignore_tests | print_in_columns

  6930.     echo

  6931. fi

  6932. 

  6933. echo "License: $license"

  6934. 

  6935. fi # test "$quiet" != "yes"

  6936. 

  6937. if test -n "$WARNINGS"; then

  6938.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6939.     enabled fatal_warnings && exit 1

  6940. fi

  6941. 

  6942. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6943. 

  6944. esc(){

  6945.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6946. }

  6947. 

  6948. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6949. 

  6950. enabled stripping || strip="echo skipping strip"

  6951. enabled stripping || striptype=""

  6952. 

  6953. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6954. 

  6955. cat > ffbuild/config.mak <<EOF

  6956. # Automatically generated by configure - do not modify!

  6957. ifndef FFMPEG_CONFIG_MAK

  6958. FFMPEG_CONFIG_MAK=1

  6959. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6960. prefix=$prefix

  6961. LIBDIR=\$(DESTDIR)$libdir

  6962. SHLIBDIR=\$(DESTDIR)$shlibdir

  6963. INCDIR=\$(DESTDIR)$incdir

  6964. BINDIR=\$(DESTDIR)$bindir

  6965. DATADIR=\$(DESTDIR)$datadir

  6966. DOCDIR=\$(DESTDIR)$docdir

  6967. MANDIR=\$(DESTDIR)$mandir

  6968. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6969. INSTALL_NAME_DIR=$install_name_dir

  6970. SRC_PATH=$source_path

  6971. SRC_LINK=$source_link

  6972. ifndef MAIN_MAKEFILE

  6973. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6974. endif

  6975. CC_IDENT=$cc_ident

  6976. ARCH=$arch

  6977. INTRINSICS=$intrinsics

  6978. EXTERN_PREFIX=$extern_prefix

  6979. CC=$cc

  6980. CXX=$cxx

  6981. AS=$as

  6982. OBJCC=$objcc

  6983. LD=$ld

  6984. DEPCC=$dep_cc

  6985. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6986. DEPAS=$as

  6987. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6988. X86ASM=$x86asmexe

  6989. DEPX86ASM=$x86asmexe

  6990. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6991. AR=$ar

  6992. ARFLAGS=$arflags

  6993. AR_O=$ar_o

  6994. AR_CMD=$ar

  6995. NM_CMD=$nm

  6996. RANLIB=$ranlib

  6997. STRIP=$strip

  6998. STRIPTYPE=$striptype

  6999. NVCC=$nvcc

  7000. CP=cp -p

  7001. LN_S=$ln_s

  7002. CPPFLAGS=$CPPFLAGS

  7003. CFLAGS=$CFLAGS

  7004. CXXFLAGS=$CXXFLAGS

  7005. OBJCFLAGS=$OBJCFLAGS

  7006. ASFLAGS=$ASFLAGS

  7007. NVCCFLAGS=$nvccflags

  7008. AS_C=$AS_C

  7009. AS_O=$AS_O

  7010. OBJCC_C=$OBJCC_C

  7011. OBJCC_E=$OBJCC_E

  7012. OBJCC_O=$OBJCC_O

  7013. CC_C=$CC_C

  7014. CC_E=$CC_E

  7015. CC_O=$CC_O

  7016. CXX_C=$CXX_C

  7017. CXX_O=$CXX_O

  7018. NVCC_C=$NVCC_C

  7019. NVCC_O=$NVCC_O

  7020. LD_O=$LD_O

  7021. X86ASM_O=$X86ASM_O

  7022. LD_LIB=$LD_LIB

  7023. LD_PATH=$LD_PATH

  7024. DLLTOOL=$dlltool

  7025. WINDRES=$windres

  7026. DEPWINDRES=$dep_cc

  7027. DOXYGEN=$doxygen

  7028. LDFLAGS=$LDFLAGS

  7029. LDEXEFLAGS=$LDEXEFLAGS

  7030. LDSOFLAGS=$LDSOFLAGS

  7031. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  7032. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  7033. X86ASMFLAGS=$X86ASMFLAGS

  7034. BUILDSUF=$build_suffix

  7035. PROGSSUF=$progs_suffix

  7036. FULLNAME=$FULLNAME

  7037. LIBPREF=$LIBPREF

  7038. LIBSUF=$LIBSUF

  7039. LIBNAME=$LIBNAME

  7040. SLIBPREF=$SLIBPREF

  7041. SLIBSUF=$SLIBSUF

  7042. EXESUF=$EXESUF

  7043. EXTRA_VERSION=$extra_version

  7044. CCDEP=$CCDEP

  7045. CXXDEP=$CXXDEP

  7046. CCDEP_FLAGS=$CCDEP_FLAGS

  7047. ASDEP=$ASDEP

  7048. ASDEP_FLAGS=$ASDEP_FLAGS

  7049. X86ASMDEP=$X86ASMDEP

  7050. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  7051. CC_DEPFLAGS=$CC_DEPFLAGS

  7052. AS_DEPFLAGS=$AS_DEPFLAGS

  7053. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  7054. HOSTCC=$host_cc

  7055. HOSTLD=$host_ld

  7056. HOSTCFLAGS=$host_cflags

  7057. HOSTCPPFLAGS=$host_cppflags

  7058. HOSTEXESUF=$HOSTEXESUF

  7059. HOSTLDFLAGS=$host_ldflags

  7060. HOSTEXTRALIBS=$host_extralibs

  7061. DEPHOSTCC=$host_cc

  7062. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  7063. HOSTCCDEP=$HOSTCCDEP

  7064. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  7065. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  7066. HOSTCC_C=$HOSTCC_C

  7067. HOSTCC_O=$HOSTCC_O

  7068. HOSTLD_O=$HOSTLD_O

  7069. TARGET_EXEC=$target_exec $target_exec_args

  7070. TARGET_PATH=$target_path

  7071. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  7072. CFLAGS-ffplay=${sdl2_cflags}

  7073. CFLAGS_HEADERS=$CFLAGS_HEADERS

  7074. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  7075. EXTRALIBS=$extralibs

  7076. COMPAT_OBJS=$compat_objs

  7077. INSTALL=$install

  7078. LIBTARGET=${LIBTARGET}

  7079. SLIBNAME=${SLIBNAME}

  7080. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  7081. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  7082. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  7083. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  7084. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  7085. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  7086. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  7087. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  7088. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  7089. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  7090. NOREDZONE_FLAGS=$noredzone_flags

  7091. LIBFUZZER_PATH=$libfuzzer_path

  7092. IGNORE_TESTS=$ignore_tests

  7093. EOF

  7094. 

  7095. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  7096. 

  7097. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  7098.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  7099. done

  7100. 

  7101. cat > $TMPH <<EOF

  7102. /* Automatically generated by configure - do not modify! */

  7103. #ifndef FFMPEG_CONFIG_H

  7104. #define FFMPEG_CONFIG_H

  7105. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  7106. #define FFMPEG_LICENSE "$(c_escape $license)"

  7107. #define CONFIG_THIS_YEAR 2018

  7108. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  7109. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  7110. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  7111. #define av_restrict $restrict_keyword

  7112. #define EXTERN_PREFIX "${extern_prefix}"

  7113. #define EXTERN_ASM ${extern_prefix}

  7114. #define BUILDSUF "$build_suffix"

  7115. #define SLIBSUF "$SLIBSUF"

  7116. #define HAVE_MMX2 HAVE_MMXEXT

  7117. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  7118. EOF

  7119. 

  7120. test -n "$assert_level" &&

  7121.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  7122. 

  7123. test -n "$malloc_prefix" &&

  7124.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  7125. 

  7126. if enabled x86asm; then

  7127.     append config_files $TMPASM

  7128.     cat > $TMPASM <<EOF

  7129. ; Automatically generated by configure - do not modify!

  7130. EOF

  7131. fi

  7132. 

  7133. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  7134. 

  7135. 

  7136. mkdir -p doc

  7137. mkdir -p tests

  7138. mkdir -p tests/api

  7139. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  7140. 

  7141. print_config ARCH_   "$config_files" $ARCH_LIST

  7142. print_config HAVE_   "$config_files" $HAVE_LIST

  7143. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  7144.                                      $CONFIG_EXTRA      \

  7145.                                      $ALL_COMPONENTS    \

  7146. 

  7147. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  7148. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  7149. 

  7150. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  7151. cp_if_changed $TMPH config.h

  7152. touch ffbuild/.config

  7153. 

  7154. enabled x86asm && cp_if_changed $TMPASM config.asm

  7155. 

  7156. cat > $TMPH <<EOF

  7157. /* Generated by ffmpeg configure */

  7158. #ifndef AVUTIL_AVCONFIG_H

  7159. #define AVUTIL_AVCONFIG_H

  7160. EOF

  7161. 

  7162. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7163. 

  7164. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7165. 

  7166. cp_if_changed $TMPH libavutil/avconfig.h

  7167. 

  7168. full_filter_name(){

  7169.     sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_$1;/\1_$1/p" $source_path/libavfilter/allfilters.c

  7170. }

  7171. 

  7172. # generate the lists of enabled components

  7173. print_enabled_components(){

  7174.     file=$1

  7175.     struct_name=$2

  7176.     name=$3

  7177.     shift 3

  7178.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7179.     for c in $*; do

  7180.         if enabled $c; then

  7181.             case $name in

  7182.                 filter_list)

  7183.                     c=$(full_filter_name $(remove_suffix _filter $c))

  7184.                 ;;

  7185.                 indev_list)

  7186.                     c=$(add_suffix _demuxer $(remove_suffix _indev $c))

  7187.                 ;;

  7188.                 outdev_list)

  7189.                     c=$(add_suffix _muxer $(remove_suffix _outdev $c))

  7190.                 ;;

  7191.             esac

  7192.             printf "    &ff_%s,\n" $c >> $TMPH

  7193.         fi

  7194.     done

  7195.     if [ "$name" = "filter_list" ]; then

  7196.         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do

  7197.             printf "    &ff_%s,\n" $c >> $TMPH

  7198.         done

  7199.     fi

  7200.     echo "    NULL };" >> $TMPH

  7201.     cp_if_changed $TMPH $file

  7202. }

  7203. 

  7204. print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST

  7205. print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST

  7206. print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST

  7207. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7208. print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST

  7209. print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST

  7210. print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST

  7211. print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST

  7212. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7213. 

  7214. # Settings for pkg-config files

  7215. 

  7216. cat > $TMPH <<EOF

  7217. # Automatically generated by configure - do not modify!

  7218. shared=$shared

  7219. build_suffix=$build_suffix

  7220. prefix=$prefix

  7221. libdir=$libdir

  7222. incdir=$incdir

  7223. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7224. source_path=${source_path}

  7225. LIBPREF=${LIBPREF}

  7226. LIBSUF=${LIBSUF}

  7227. extralibs_avutil="$avutil_extralibs"

  7228. extralibs_avcodec="$avcodec_extralibs"

  7229. extralibs_avformat="$avformat_extralibs"

  7230. extralibs_avdevice="$avdevice_extralibs"

  7231. extralibs_avfilter="$avfilter_extralibs"

  7232. extralibs_avresample="$avresample_extralibs"

  7233. extralibs_postproc="$postproc_extralibs"

  7234. extralibs_swscale="$swscale_extralibs"

  7235. extralibs_swresample="$swresample_extralibs"

  7236. EOF

  7237. 

  7238. for lib in $LIBRARY_LIST; do

  7239.     lib_deps="$(eval echo \$${lib}_deps)"

  7240.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7241. done

  7242. 

  7243. cp_if_changed $TMPH ffbuild/config.sh