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FFmpeg
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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-libass          enable libass subtitles rendering,

  221.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  228.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  269.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

  282.   --enable-libxml2         enable XML parsing using the C library libxml2 [no]

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

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

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

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

  287.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

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

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

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

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

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

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

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

  300.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  303.   --disable-xlib           disable xlib [autodetect]

  304.   --disable-zlib           disable zlib [autodetect]

  305. 

  306.   The following libraries provide various hardware acceleration features:

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

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

  309.   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  327. 

  328. Toolchain options:

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

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

  331.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  382. 

  383. Advanced options (experts only):

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

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

  386.   --disable-symver         disable symbol versioning

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

  388.   --disable-safe-bitstream-reader

  389.                            disable buffer boundary checking in bitreaders

  390.                            (faster, but may crash)

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

  392. 

  393. Optimization options (experts only):

  394.   --disable-asm            disable all assembly optimizations

  395.   --disable-altivec        disable AltiVec optimizations

  396.   --disable-vsx            disable VSX optimizations

  397.   --disable-power8         disable POWER8 optimizations

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

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

  400.   --disable-mmx            disable MMX optimizations

  401.   --disable-mmxext         disable MMXEXT optimizations

  402.   --disable-sse            disable SSE optimizations

  403.   --disable-sse2           disable SSE2 optimizations

  404.   --disable-sse3           disable SSE3 optimizations

  405.   --disable-ssse3          disable SSSE3 optimizations

  406.   --disable-sse4           disable SSE4 optimizations

  407.   --disable-sse42          disable SSE4.2 optimizations

  408.   --disable-avx            disable AVX optimizations

  409.   --disable-xop            disable XOP optimizations

  410.   --disable-fma3           disable FMA3 optimizations

  411.   --disable-fma4           disable FMA4 optimizations

  412.   --disable-avx2           disable AVX2 optimizations

  413.   --disable-avx512         disable AVX-512 optimizations

  414.   --disable-aesni          disable AESNI optimizations

  415.   --disable-armv5te        disable armv5te optimizations

  416.   --disable-armv6          disable armv6 optimizations

  417.   --disable-armv6t2        disable armv6t2 optimizations

  418.   --disable-vfp            disable VFP optimizations

  419.   --disable-neon           disable NEON optimizations

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

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

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

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

  424.   --disable-msa            disable MSA optimizations

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

  426.   --disable-mmi            disable Loongson SIMD optimizations

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

  428. 

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

  430.   --disable-debug          disable debugging symbols

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

  432.   --disable-optimizations  disable compiler optimizations

  433.   --enable-extra-warnings  enable more compiler warnings

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

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

  436.                            2 causes a slowdown at runtime.

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

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

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

  440.                            Cannot be combined with --target-exec

  441.   --enable-ftrapv          Trap arithmetic overflows

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

  443.                            \$FATE_SAMPLES at make invocation time.

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

  445.                            used only for debugging purposes)

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

  447.                            should be used only for debugging purposes)

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

  449.   --disable-random

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

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

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

  453.                            (group) and PROB the probability associated with

  454.                            NAME (default 0.5).

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

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

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

  458.   --enable-osfuzz          Enable building fuzzer tool

  459.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  463. 

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

  465. EOF

  466.   exit 0

  467. }

  468. 

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

  470.     ncolors=$(tput colors)

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

  472.         bold_color=$(tput bold)

  473.         warn_color=$(tput setaf 3)

  474.         error_color=$(tput setaf 1)

  475.         reset_color=$(tput sgr0)

  476.     fi

  477.     # 72 used instead of 80 since that's the default of pr

  478.     ncols=$(tput cols)

  479. fi

  480. : ${ncols:=72}

  481. 

  482. log(){

  483.     echo "$@" >> $logfile

  484. }

  485. 

  486. log_file(){

  487.     log BEGIN $1

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

  489.     log END $1

  490. }

  491. 

  492. warn(){

  493.     log "WARNING: $*"

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

  495. }

  496. 

  497. die(){

  498.     log "$@"

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

  500.     cat <<EOF

  501. 

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

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

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

  505. EOF

  506.     if disabled logging; then

  507.         cat <<EOF

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

  509. include the log this produces with your report.

  510. EOF

  511.     else

  512.         cat <<EOF

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

  514. solve the problem.

  515. EOF

  516.     fi

  517.     exit 1

  518. }

  519. 

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

  521. toupper(){

  522.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  523. }

  524. 

  525. tolower(){

  526.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  527. }

  528. 

  529. c_escape(){

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

  531. }

  532. 

  533. sh_quote(){

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

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

  536.     echo "$v"

  537. }

  538. 

  539. cleanws(){

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

  541. }

  542. 

  543. filter(){

  544.     pat=$1

  545.     shift

  546.     for v; do

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

  548.     done

  549. }

  550. 

  551. filter_out(){

  552.     pat=$1

  553.     shift

  554.     for v; do

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

  556.     done

  557. }

  558. 

  559. map(){

  560.     m=$1

  561.     shift

  562.     for v; do eval $m; done

  563. }

  564. 

  565. add_suffix(){

  566.     suffix=$1

  567.     shift

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

  569. }

  570. 

  571. set_all(){

  572.     value=$1

  573.     shift

  574.     for var in $*; do

  575.         eval $var=$value

  576.     done

  577. }

  578. 

  579. set_weak(){

  580.     value=$1

  581.     shift

  582.     for var; do

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

  584.     done

  585. }

  586. 

  587. sanitize_var_name(){

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

  589. }

  590. 

  591. set_sanitized(){

  592.     var=$1

  593.     shift

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

  595. }

  596. 

  597. get_sanitized(){

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

  599. }

  600. 

  601. pushvar(){

  602.     for pvar in $*; do

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

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

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

  606.     done

  607. }

  608. 

  609. popvar(){

  610.     for pvar in $*; do

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

  612.         test $level = 0 && continue

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

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

  615.         eval ${pvar}_level=$level

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

  617.     done

  618. }

  619. 

  620. request(){

  621.     for var in $*; do

  622.         eval ${var}_requested=yes

  623.         eval $var=

  624.     done

  625. }

  626. 

  627. enable(){

  628.     set_all yes $*

  629. }

  630. 

  631. disable(){

  632.     set_all no $*

  633. }

  634. 

  635. enable_weak(){

  636.     set_weak yes $*

  637. }

  638. 

  639. disable_weak(){

  640.     set_weak no $*

  641. }

  642. 

  643. enable_sanitized(){

  644.     for var; do

  645.         enable $(sanitize_var_name $var)

  646.     done

  647. }

  648. 

  649. disable_sanitized(){

  650.     for var; do

  651.         disable $(sanitize_var_name $var)

  652.     done

  653. }

  654. 

  655. do_enable_deep(){

  656.     for var; do

  657.         enabled $var && continue

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

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

  660.         pushvar var sgs

  661.         enable_deep $sel

  662.         popvar sgs

  663.         enable_deep_weak $sgs

  664.         popvar var

  665.     done

  666. }

  667. 

  668. enable_deep(){

  669.     do_enable_deep $*

  670.     enable $*

  671. }

  672. 

  673. enable_deep_weak(){

  674.     for var; do

  675.         disabled $var && continue

  676.         pushvar var

  677.         do_enable_deep $var

  678.         popvar var

  679.         enable_weak $var

  680.     done

  681. }

  682. 

  683. requested(){

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

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

  686. }

  687. 

  688. enabled(){

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

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

  691. }

  692. 

  693. disabled(){

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

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

  696. }

  697. 

  698. enabled_all(){

  699.     for opt; do

  700.         enabled $opt || return 1

  701.     done

  702. }

  703. 

  704. disabled_all(){

  705.     for opt; do

  706.         disabled $opt || return 1

  707.     done

  708. }

  709. 

  710. enabled_any(){

  711.     for opt; do

  712.         enabled $opt && return 0

  713.     done

  714. }

  715. 

  716. disabled_any(){

  717.     for opt; do

  718.         disabled $opt && return 0

  719.     done

  720.     return 1

  721. }

  722. 

  723. set_default(){

  724.     for opt; do

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

  726.     done

  727. }

  728. 

  729. is_in(){

  730.     value=$1

  731.     shift

  732.     for var in $*; do

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

  734.     done

  735.     return 1

  736. }

  737. 

  738. check_deps(){

  739.     for cfg; do

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

  741.         disabled ${cfg}_checking && continue

  742.         enable ${cfg}_checking

  743. 

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

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

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

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

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

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

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

  751. 

  752.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  754.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  755. 

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

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

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

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

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

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

  762. 

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

  764. 

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

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

  767.             is_in $dep $LIBRARY_LIST && continue

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

  769.         done

  770. 

  771.         disable ${cfg}_checking

  772.     done

  773. }

  774. 

  775. print_config(){

  776.     pfx=$1

  777.     files=$2

  778.     shift 2

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

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

  781.         {

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

  783.             v = \$2;

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

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

  786.             for (f in files) {

  787.                 file = files[f];

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

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

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

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

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

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

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

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

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

  797.                     yesno = \$2;

  798.                     c2 = tolower(c);

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

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

  801.                 }

  802.             }

  803.         }"

  804. }

  805. 

  806. print_enabled(){

  807.     suf=$1

  808.     shift

  809.     for v; do

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

  811.     done

  812. }

  813. 

  814. append(){

  815.     var=$1

  816.     shift

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

  818. }

  819. 

  820. prepend(){

  821.     var=$1

  822.     shift

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

  824. }

  825. 

  826. unique(){

  827.     var=$1

  828.     uniq_list=""

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

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

  831.     done

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

  833. }

  834. 

  835. resolve(){

  836.     var=$1

  837.     tmpvar=

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

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

  840.     done

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

  842. }

  843. 

  844. add_cppflags(){

  845.     append CPPFLAGS "$@"

  846. }

  847. 

  848. add_cflags(){

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

  850. }

  851. 

  852. add_cflags_headers(){

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

  854. }

  855. 

  856. add_cxxflags(){

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

  858. }

  859. 

  860. add_asflags(){

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

  862. }

  863. 

  864. add_objcflags(){

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

  866. }

  867. 

  868. add_ldflags(){

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

  870. }

  871. 

  872. add_ldexeflags(){

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

  874. }

  875. 

  876. add_ldsoflags(){

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

  878. }

  879. 

  880. add_stripflags(){

  881.     append ASMSTRIPFLAGS "$@"

  882. }

  883. 

  884. add_extralibs(){

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

  886. }

  887. 

  888. add_host_cppflags(){

  889.     append host_cppflags "$@"

  890. }

  891. 

  892. add_host_cflags(){

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

  894. }

  895. 

  896. add_host_ldflags(){

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

  898. }

  899. 

  900. add_compat(){

  901.     append compat_objs $1

  902.     shift

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

  904. }

  905. 

  906. check_cmd(){

  907.     log "$@"

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

  909. }

  910. 

  911. check_stat(){

  912.     log check_stat "$@"

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

  914. }

  915. 

  916. cc_o(){

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

  918. }

  919. 

  920. cc_e(){

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

  922. }

  923. 

  924. check_cc(){

  925.     log check_cc "$@"

  926.     cat > $TMPC

  927.     log_file $TMPC

  928.     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC

  929. }

  930. 

  931. check_cxx(){

  932.     log check_cxx "$@"

  933.     cat > $TMPCPP

  934.     log_file $TMPCPP

  935.     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP

  936. }

  937. 

  938. check_objcc(){

  939.     log check_objcc "$@"

  940.     cat > $TMPM

  941.     log_file $TMPM

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

  943. }

  944. 

  945. check_cpp(){

  946.     log check_cpp "$@"

  947.     cat > $TMPC

  948.     log_file $TMPC

  949.     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC

  950. }

  951. 

  952. as_o(){

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

  954. }

  955. 

  956. check_as(){

  957.     log check_as "$@"

  958.     cat > $TMPS

  959.     log_file $TMPS

  960.     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS

  961. }

  962. 

  963. check_inline_asm(){

  964.     log check_inline_asm "$@"

  965.     name="$1"

  966.     code="$2"

  967.     shift 2

  968.     disable $name

  969.     check_cc "$@" <<EOF && enable $name

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

  971. EOF

  972. }

  973. 

  974. check_inline_asm_flags(){

  975.     log check_inline_asm_flags "$@"

  976.     name="$1"

  977.     code="$2"

  978.     flags=''

  979.     shift 2

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

  981.       append flags $1

  982.       shift

  983.     done;

  984.     disable $name

  985.     cat > $TMPC <<EOF

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

  987. EOF

  988.     log_file $TMPC

  989.     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&

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

  991. }

  992. 

  993. check_insn(){

  994.     log check_insn "$@"

  995.     check_inline_asm ${1}_inline "\"$2\""

  996.     echo "$2" | check_as && enable ${1}_external || disable ${1}_external

  997. }

  998. 

  999. check_x86asm(){

  1000.     log check_x86asm "$@"

  1001.     echo "$1" > $TMPS

  1002.     log_file $TMPS

  1003.     shift 1

  1004.     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS

  1005. }

  1006. 

  1007. ld_o(){

  1008.     eval printf '%s\\n' $LD_O

  1009. }

  1010. 

  1011. check_ld(){

  1012.     log check_ld "$@"

  1013.     type=$1

  1014.     shift 1

  1015.     flags=$(filter_out '-l*|*.so' $@)

  1016.     libs=$(filter '-l*|*.so' $@)

  1017.     check_$type $($cflags_filter $flags) || return

  1018.     flags=$($ldflags_filter $flags)

  1019.     libs=$($ldflags_filter $libs)

  1020.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1021. }

  1022. 

  1023. print_include(){

  1024.     hdr=$1

  1025.     test "${hdr%.h}" = "${hdr}" &&

  1026.         echo "#include $hdr"    ||

  1027.         echo "#include <$hdr>"

  1028. }

  1029. 

  1030. check_code(){

  1031.     log check_code "$@"

  1032.     check=$1

  1033.     headers=$2

  1034.     code=$3

  1035.     shift 3

  1036.     {

  1037.         for hdr in $headers; do

  1038.             print_include $hdr

  1039.         done

  1040.         echo "int main(void) { $code; return 0; }"

  1041.     } | check_$check "$@"

  1042. }

  1043. 

  1044. check_cppflags(){

  1045.     log check_cppflags "$@"

  1046.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1047. #include <stdlib.h>

  1048. EOF

  1049. }

  1050. 

  1051. test_cflags(){

  1052.     log test_cflags "$@"

  1053.     set -- $($cflags_filter "$@")

  1054.     check_cc "$@" <<EOF

  1055. int x;

  1056. EOF

  1057. }

  1058. 

  1059. check_cflags(){

  1060.     log check_cflags "$@"

  1061.     test_cflags "$@" && add_cflags "$@"

  1062. }

  1063. 

  1064. check_cxxflags(){

  1065.     log check_cxxflags "$@"

  1066.     set -- $($cflags_filter "$@")

  1067.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1068. int x;

  1069. EOF

  1070. }

  1071. 

  1072. test_objcflags(){

  1073.     log test_objcflags "$@"

  1074.     set -- $($objcflags_filter "$@")

  1075.     check_objcc "$@" <<EOF

  1076. int x;

  1077. EOF

  1078. }

  1079. 

  1080. check_objcflags(){

  1081.     log check_objcflags "$@"

  1082.     test_objcflags "$@" && add_objcflags "$@"

  1083. }

  1084. 

  1085. test_ldflags(){

  1086.     log test_ldflags "$@"

  1087.     set -- $($ldflags_filter "$@")

  1088.     check_ld "cc" "$@" <<EOF

  1089. int main(void){ return 0; }

  1090. EOF

  1091. }

  1092. 

  1093. check_ldflags(){

  1094.     log check_ldflags "$@"

  1095.     test_ldflags "$@" && add_ldflags "$@"

  1096. }

  1097. 

  1098. test_stripflags(){

  1099.     log test_stripflags "$@"

  1100.     # call check_cc to get a fresh TMPO

  1101.     check_cc <<EOF

  1102. int main(void) { return 0; }

  1103. EOF

  1104.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1105. }

  1106. 

  1107. check_stripflags(){

  1108.     log check_stripflags "$@"

  1109.     test_stripflags "$@" && add_stripflags "$@"

  1110. }

  1111. 

  1112. check_header(){

  1113.     log check_header "$@"

  1114.     headers=$1

  1115.     shift

  1116.     disable_sanitized $headers

  1117.     {

  1118.         for hdr in $headers; do

  1119.             print_include $hdr

  1120.         done

  1121.         echo "int x;"

  1122.     } | check_cpp "$@" && enable_sanitized $headers

  1123. }

  1124. 

  1125. check_header_objcc(){

  1126.     log check_header_objcc "$@"

  1127.     rm -f -- "$TMPO"

  1128.     header=$1

  1129.     shift

  1130.     disable_sanitized $header

  1131.     {

  1132.        echo "#include <$header>"

  1133.        echo "int main(void) { return 0; }"

  1134.     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header

  1135. }

  1136. 

  1137. check_apple_framework(){

  1138.     log check_apple_framework "$@"

  1139.     framework="$1"

  1140.     name="$(tolower $framework)"

  1141.     header="${framework}/${framework}.h"

  1142.     disable $name

  1143.     check_header_objcc $header &&

  1144.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1145. }

  1146. 

  1147. check_func(){

  1148.     log check_func "$@"

  1149.     func=$1

  1150.     shift

  1151.     disable $func

  1152.     check_ld "cc" "$@" <<EOF && enable $func

  1153. extern int $func();

  1154. int main(void){ $func(); }

  1155. EOF

  1156. }

  1157. 

  1158. check_complexfunc(){

  1159.     log check_complexfunc "$@"

  1160.     func=$1

  1161.     narg=$2

  1162.     shift 2

  1163.     test $narg = 2 && args="f, g" || args="f * I"

  1164.     disable $func

  1165.     check_ld "cc" "$@" <<EOF && enable $func

  1166. #include <complex.h>

  1167. #include <math.h>

  1168. float foo(complex float f, complex float g) { return $func($args); }

  1169. int main(void){ return (int) foo; }

  1170. EOF

  1171. }

  1172. 

  1173. check_mathfunc(){

  1174.     log check_mathfunc "$@"

  1175.     func=$1

  1176.     narg=$2

  1177.     shift 2

  1178.     test $narg = 2 && args="f, g" || args="f"

  1179.     disable $func

  1180.     check_ld "cc" "$@" <<EOF && enable $func

  1181. #include <math.h>

  1182. float foo(float f, float g) { return $func($args); }

  1183. int main(void){ return (int) foo; }

  1184. EOF

  1185. }

  1186. 

  1187. check_func_headers(){

  1188.     log check_func_headers "$@"

  1189.     headers=$1

  1190.     funcs=$2

  1191.     shift 2

  1192.     {

  1193.         for hdr in $headers; do

  1194.             print_include $hdr

  1195.         done

  1196.         echo "#include <stdint.h>"

  1197.         for func in $funcs; do

  1198.             echo "long check_$func(void) { return (long) $func; }"

  1199.         done

  1200.         echo "int main(void) { int ret = 0;"

  1201.         # LTO could optimize out the test functions without this

  1202.         for func in $funcs; do

  1203.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1204.         done

  1205.         echo "return ret; }"

  1206.     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1207. }

  1208. 

  1209. check_class_headers_cpp(){

  1210.     log check_class_headers_cpp "$@"

  1211.     headers=$1

  1212.     classes=$2

  1213.     shift 2

  1214.     {

  1215.         for hdr in $headers; do

  1216.             echo "#include <$hdr>"

  1217.         done

  1218.         echo "int main(void) { "

  1219.         i=1

  1220.         for class in $classes; do

  1221.             echo "$class obj$i;"

  1222.             i=$(expr $i + 1)

  1223.         done

  1224.         echo "return 0; }"

  1225.     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1226. }

  1227. 

  1228. check_cpp_condition(){

  1229.     log check_cpp_condition "$@"

  1230.     header=$1

  1231.     condition=$2

  1232.     shift 2

  1233.     check_cpp "$@" <<EOF

  1234. #include <$header>

  1235. #if !($condition)

  1236. #error "unsatisfied condition: $condition"

  1237. #endif

  1238. EOF

  1239. }

  1240. 

  1241. test_cflags_cc(){

  1242.     log test_cflags_cc "$@"

  1243.     flags=$1

  1244.     header=$2

  1245.     condition=$3

  1246.     shift 3

  1247.     set -- $($cflags_filter "$flags")

  1248.     check_cc "$@" <<EOF

  1249. #include <$header>

  1250. #if !($condition)

  1251. #error "unsatisfied condition: $condition"

  1252. #endif

  1253. EOF

  1254. }

  1255. 

  1256. check_lib(){

  1257.     log check_lib "$@"

  1258.     name="$1"

  1259.     headers="$2"

  1260.     funcs="$3"

  1261.     shift 3

  1262.     disable $name

  1263.     check_func_headers "$headers" "$funcs" "$@" &&

  1264.         enable $name && eval ${name}_extralibs="\$@"

  1265. }

  1266. 

  1267. check_lib_cpp(){

  1268.     log check_lib_cpp "$@"

  1269.     name="$1"

  1270.     headers="$2"

  1271.     classes="$3"

  1272.     shift 3

  1273.     disable $name

  1274.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1275.         enable $name && eval ${name}_extralibs="\$@"

  1276. }

  1277. 

  1278. test_pkg_config(){

  1279.     log test_pkg_config "$@"

  1280.     name="$1"

  1281.     pkg_version="$2"

  1282.     pkg="${2%% *}"

  1283.     headers="$3"

  1284.     funcs="$4"

  1285.     shift 4

  1286.     disable $name

  1287.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1288.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1289.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1290.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1291.         enable $name &&

  1292.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1293.         set_sanitized "${name}_extralibs" $pkg_libs

  1294. }

  1295. 

  1296. check_pkg_config(){

  1297.     log check_pkg_config "$@"

  1298.     name="$1"

  1299.     test_pkg_config "$@" &&

  1300.         eval add_cflags \$${name}_cflags

  1301. }

  1302. 

  1303. check_exec(){

  1304.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1305. }

  1306. 

  1307. check_exec_crash(){

  1308.     log check_exec_crash "$@"

  1309.     code=$(cat)

  1310. 

  1311.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1312.     # are safe but may not be available everywhere.  Thus we use

  1313.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1314.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1315.     # is not defined by standard C so it is used conditionally.

  1316. 

  1317.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1318. #include <signal.h>

  1319. static void sighandler(int sig){

  1320.     raise(SIGTERM);

  1321. }

  1322. int foo(void){

  1323.     $code

  1324. }

  1325. int (*func_ptr)(void) = foo;

  1326. int main(void){

  1327.     signal(SIGILL, sighandler);

  1328.     signal(SIGFPE, sighandler);

  1329.     signal(SIGSEGV, sighandler);

  1330. #ifdef SIGBUS

  1331.     signal(SIGBUS, sighandler);

  1332. #endif

  1333.     return func_ptr();

  1334. }

  1335. EOF

  1336. }

  1337. 

  1338. check_type(){

  1339.     log check_type "$@"

  1340.     headers=$1

  1341.     type=$2

  1342.     shift 2

  1343.     disable_sanitized "$type"

  1344.     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1345. }

  1346. 

  1347. check_struct(){

  1348.     log check_struct "$@"

  1349.     headers=$1

  1350.     struct=$2

  1351.     member=$3

  1352.     shift 3

  1353.     disable_sanitized "${struct}_${member}"

  1354.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1355.         enable_sanitized "${struct}_${member}"

  1356. }

  1357. 

  1358. check_builtin(){

  1359.     log check_builtin "$@"

  1360.     name=$1

  1361.     headers=$2

  1362.     builtin=$3

  1363.     shift 3

  1364.     disable "$name"

  1365.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1366. }

  1367. 

  1368. check_compile_assert(){

  1369.     log check_compile_assert "$@"

  1370.     name=$1

  1371.     headers=$2

  1372.     condition=$3

  1373.     shift 3

  1374.     disable "$name"

  1375.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1376. }

  1377. 

  1378. require(){

  1379.     log require "$@"

  1380.     name_version="$1"

  1381.     name="${1%% *}"

  1382.     headers="$2"

  1383.     func="$3"

  1384.     shift 3

  1385.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1386. }

  1387. 

  1388. require_cpp(){

  1389.     name="$1"

  1390.     headers="$2"

  1391.     classes="$3"

  1392.     shift 3

  1393.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1394. }

  1395. 

  1396. require_header(){

  1397.     log require_header "$@"

  1398.     headers="$1"

  1399.     shift

  1400.     check_header "$headers" "$@" || die "ERROR: $headers not found"

  1401. }

  1402. 

  1403. require_cpp_condition(){

  1404.     log require_cpp_condition "$@"

  1405.     header="$1"

  1406.     condition="$2"

  1407.     shift 2

  1408.     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"

  1409. }

  1410. 

  1411. require_pkg_config(){

  1412.     log require_pkg_config "$@"

  1413.     pkg_version="$2"

  1414.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1415. }

  1416. 

  1417. hostcc_e(){

  1418.     eval printf '%s\\n' $HOSTCC_E

  1419. }

  1420. 

  1421. hostcc_o(){

  1422.     eval printf '%s\\n' $HOSTCC_O

  1423. }

  1424. 

  1425. check_host_cc(){

  1426.     log check_host_cc "$@"

  1427.     cat > $TMPC

  1428.     log_file $TMPC

  1429.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1430. }

  1431. 

  1432. check_host_cpp(){

  1433.     log check_host_cpp "$@"

  1434.     cat > $TMPC

  1435.     log_file $TMPC

  1436.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1437. }

  1438. 

  1439. check_host_cppflags(){

  1440.     log check_host_cppflags "$@"

  1441.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1442. #include <stdlib.h>

  1443. EOF

  1444. }

  1445. 

  1446. check_host_cflags(){

  1447.     log check_host_cflags "$@"

  1448.     set -- $($host_cflags_filter "$@")

  1449.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1450. int x;

  1451. EOF

  1452. }

  1453. 

  1454. check_host_cpp_condition(){

  1455.     log check_host_cpp_condition "$@"

  1456.     header=$1

  1457.     condition=$2

  1458.     shift 2

  1459.     check_host_cpp "$@" <<EOF

  1460. #include <$header>

  1461. #if !($condition)

  1462. #error "unsatisfied condition: $condition"

  1463. #endif

  1464. EOF

  1465. }

  1466. 

  1467. cp_if_changed(){

  1468.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1469.     mkdir -p "$(dirname $2)"

  1470.     cp -f "$1" "$2"

  1471. }

  1472. 

  1473. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1474. # system-dependent things.

  1475. 

  1476. AVCODEC_COMPONENTS="

  1477.     bsfs

  1478.     decoders

  1479.     encoders

  1480.     hwaccels

  1481.     parsers

  1482. "

  1483. 

  1484. AVDEVICE_COMPONENTS="

  1485.     indevs

  1486.     outdevs

  1487. "

  1488. 

  1489. AVFILTER_COMPONENTS="

  1490.     filters

  1491. "

  1492. 

  1493. AVFORMAT_COMPONENTS="

  1494.     demuxers

  1495.     muxers

  1496.     protocols

  1497. "

  1498. 

  1499. COMPONENT_LIST="

  1500.     $AVCODEC_COMPONENTS

  1501.     $AVDEVICE_COMPONENTS

  1502.     $AVFILTER_COMPONENTS

  1503.     $AVFORMAT_COMPONENTS

  1504. "

  1505. 

  1506. EXAMPLE_LIST="

  1507.     avio_dir_cmd_example

  1508.     avio_reading_example

  1509.     decode_audio_example

  1510.     decode_video_example

  1511.     demuxing_decoding_example

  1512.     encode_audio_example

  1513.     encode_video_example

  1514.     extract_mvs_example

  1515.     filter_audio_example

  1516.     filtering_audio_example

  1517.     filtering_video_example

  1518.     http_multiclient_example

  1519.     hw_decode_example

  1520.     metadata_example

  1521.     muxing_example

  1522.     qsvdec_example

  1523.     remuxing_example

  1524.     resampling_audio_example

  1525.     scaling_video_example

  1526.     transcode_aac_example

  1527.     transcoding_example

  1528.     vaapi_encode_example

  1529. "

  1530. 

  1531. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1532.     alsa

  1533.     appkit

  1534.     avfoundation

  1535.     bzlib

  1536.     coreimage

  1537.     iconv

  1538.     libxcb

  1539.     libxcb_shm

  1540.     libxcb_shape

  1541.     libxcb_xfixes

  1542.     lzma

  1543.     schannel

  1544.     sdl2

  1545.     securetransport

  1546.     sndio

  1547.     xlib

  1548.     zlib

  1549. "

  1550. 

  1551. EXTERNAL_LIBRARY_GPL_LIST="

  1552.     avisynth

  1553.     frei0r

  1554.     libcdio

  1555.     librubberband

  1556.     libvidstab

  1557.     libx264

  1558.     libx265

  1559.     libxavs

  1560.     libxvid

  1561. "

  1562. 

  1563. EXTERNAL_LIBRARY_NONFREE_LIST="

  1564.     decklink

  1565.     libndi_newtek

  1566.     libfdk_aac

  1567.     openssl

  1568.     libtls

  1569. "

  1570. 

  1571. EXTERNAL_LIBRARY_VERSION3_LIST="

  1572.     gmp

  1573.     libopencore_amrnb

  1574.     libopencore_amrwb

  1575.     libvmaf

  1576.     libvo_amrwbenc

  1577.     rkmpp

  1578. "

  1579. 

  1580. EXTERNAL_LIBRARY_GPLV3_LIST="

  1581.     libsmbclient

  1582. "

  1583. 

  1584. EXTERNAL_LIBRARY_LIST="

  1585.     $EXTERNAL_LIBRARY_GPL_LIST

  1586.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1587.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1588.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1589.     chromaprint

  1590.     gcrypt

  1591.     gnutls

  1592.     jni

  1593.     ladspa

  1594.     libass

  1595.     libbluray

  1596.     libbs2b

  1597.     libcaca

  1598.     libcelt

  1599.     libdc1394

  1600.     libdrm

  1601.     libflite

  1602.     libfontconfig

  1603.     libfreetype

  1604.     libfribidi

  1605.     libgme

  1606.     libgsm

  1607.     libiec61883

  1608.     libilbc

  1609.     libjack

  1610.     libkvazaar

  1611.     libmodplug

  1612.     libmp3lame

  1613.     libmysofa

  1614.     libopencv

  1615.     libopenh264

  1616.     libopenjpeg

  1617.     libopenmpt

  1618.     libopus

  1619.     libpulse

  1620.     librsvg

  1621.     librtmp

  1622.     libshine

  1623.     libsmbclient

  1624.     libsnappy

  1625.     libsoxr

  1626.     libspeex

  1627.     libssh

  1628.     libtesseract

  1629.     libtheora

  1630.     libtwolame

  1631.     libv4l2

  1632.     libvorbis

  1633.     libvpx

  1634.     libwavpack

  1635.     libwebp

  1636.     libxml2

  1637.     libzimg

  1638.     libzmq

  1639.     libzvbi

  1640.     lv2

  1641.     mediacodec

  1642.     openal

  1643.     opengl

  1644. "

  1645. 

  1646. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1647.     amf

  1648.     audiotoolbox

  1649.     crystalhd

  1650.     cuda

  1651.     cuvid

  1652.     d3d11va

  1653.     dxva2

  1654.     nvdec

  1655.     nvenc

  1656.     vaapi

  1657.     vdpau

  1658.     videotoolbox

  1659.     v4l2_m2m

  1660.     xvmc

  1661. "

  1662. 

  1663. # catchall list of things that require external libs to link

  1664. EXTRALIBS_LIST="

  1665.     cpu_init

  1666.     cws2fws

  1667. "

  1668. 

  1669. HWACCEL_LIBRARY_NONFREE_LIST="

  1670.     cuda_sdk

  1671.     libnpp

  1672. "

  1673. 

  1674. HWACCEL_LIBRARY_LIST="

  1675.     $HWACCEL_LIBRARY_NONFREE_LIST

  1676.     libmfx

  1677.     mmal

  1678.     omx

  1679.     opencl

  1680. "

  1681. 

  1682. DOCUMENT_LIST="

  1683.     doc

  1684.     htmlpages

  1685.     manpages

  1686.     podpages

  1687.     txtpages

  1688. "

  1689. 

  1690. FEATURE_LIST="

  1691.     ftrapv

  1692.     gray

  1693.     hardcoded_tables

  1694.     omx_rpi

  1695.     runtime_cpudetect

  1696.     safe_bitstream_reader

  1697.     shared

  1698.     small

  1699.     static

  1700.     swscale_alpha

  1701. "

  1702. 

  1703. LIBRARY_LIST="

  1704.     avcodec

  1705.     avdevice

  1706.     avfilter

  1707.     avformat

  1708.     avresample

  1709.     avutil

  1710.     postproc

  1711.     swresample

  1712.     swscale

  1713. "

  1714. 

  1715. LICENSE_LIST="

  1716.     gpl

  1717.     nonfree

  1718.     version3

  1719. "

  1720. 

  1721. PROGRAM_LIST="

  1722.     ffplay

  1723.     ffprobe

  1724.     ffmpeg

  1725. "

  1726. 

  1727. SUBSYSTEM_LIST="

  1728.     dct

  1729.     dwt

  1730.     error_resilience

  1731.     faan

  1732.     fast_unaligned

  1733.     fft

  1734.     lsp

  1735.     lzo

  1736.     mdct

  1737.     pixelutils

  1738.     network

  1739.     rdft

  1740. "

  1741. 

  1742. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1743. CONFIG_LIST="

  1744.     $DOCUMENT_LIST

  1745.     $EXAMPLE_LIST

  1746.     $EXTERNAL_LIBRARY_LIST

  1747.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1748.     $HWACCEL_LIBRARY_LIST

  1749.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1750.     $FEATURE_LIST

  1751.     $LICENSE_LIST

  1752.     $LIBRARY_LIST

  1753.     $PROGRAM_LIST

  1754.     $SUBSYSTEM_LIST

  1755.     autodetect

  1756.     fontconfig

  1757.     linux_perf

  1758.     memory_poisoning

  1759.     neon_clobber_test

  1760.     ossfuzz

  1761.     pic

  1762.     thumb

  1763.     valgrind_backtrace

  1764.     xmm_clobber_test

  1765.     $COMPONENT_LIST

  1766. "

  1767. 

  1768. THREADS_LIST="

  1769.     pthreads

  1770.     os2threads

  1771.     w32threads

  1772. "

  1773. 

  1774. ATOMICS_LIST="

  1775.     atomics_gcc

  1776.     atomics_suncc

  1777.     atomics_win32

  1778. "

  1779. 

  1780. AUTODETECT_LIBS="

  1781.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1782.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1783.     $THREADS_LIST

  1784. "

  1785. 

  1786. ARCH_LIST="

  1787.     aarch64

  1788.     alpha

  1789.     arm

  1790.     avr32

  1791.     avr32_ap

  1792.     avr32_uc

  1793.     bfin

  1794.     ia64

  1795.     m68k

  1796.     mips

  1797.     mips64

  1798.     parisc

  1799.     ppc

  1800.     ppc64

  1801.     s390

  1802.     sh4

  1803.     sparc

  1804.     sparc64

  1805.     tilegx

  1806.     tilepro

  1807.     tomi

  1808.     x86

  1809.     x86_32

  1810.     x86_64

  1811. "

  1812. 

  1813. ARCH_EXT_LIST_ARM="

  1814.     armv5te

  1815.     armv6

  1816.     armv6t2

  1817.     armv8

  1818.     neon

  1819.     vfp

  1820.     vfpv3

  1821.     setend

  1822. "

  1823. 

  1824. ARCH_EXT_LIST_MIPS="

  1825.     mipsfpu

  1826.     mips32r2

  1827.     mips32r5

  1828.     mips64r2

  1829.     mips32r6

  1830.     mips64r6

  1831.     mipsdsp

  1832.     mipsdspr2

  1833.     msa

  1834. "

  1835. 

  1836. ARCH_EXT_LIST_LOONGSON="

  1837.     loongson2

  1838.     loongson3

  1839.     mmi

  1840. "

  1841. 

  1842. ARCH_EXT_LIST_X86_SIMD="

  1843.     aesni

  1844.     amd3dnow

  1845.     amd3dnowext

  1846.     avx

  1847.     avx2

  1848.     avx512

  1849.     fma3

  1850.     fma4

  1851.     mmx

  1852.     mmxext

  1853.     sse

  1854.     sse2

  1855.     sse3

  1856.     sse4

  1857.     sse42

  1858.     ssse3

  1859.     xop

  1860. "

  1861. 

  1862. ARCH_EXT_LIST_PPC="

  1863.     altivec

  1864.     dcbzl

  1865.     ldbrx

  1866.     power8

  1867.     ppc4xx

  1868.     vsx

  1869. "

  1870. 

  1871. ARCH_EXT_LIST_X86="

  1872.     $ARCH_EXT_LIST_X86_SIMD

  1873.     cpunop

  1874.     i686

  1875. "

  1876. 

  1877. ARCH_EXT_LIST="

  1878.     $ARCH_EXT_LIST_ARM

  1879.     $ARCH_EXT_LIST_PPC

  1880.     $ARCH_EXT_LIST_X86

  1881.     $ARCH_EXT_LIST_MIPS

  1882.     $ARCH_EXT_LIST_LOONGSON

  1883. "

  1884. 

  1885. ARCH_FEATURES="

  1886.     aligned_stack

  1887.     fast_64bit

  1888.     fast_clz

  1889.     fast_cmov

  1890.     local_aligned

  1891.     simd_align_16

  1892.     simd_align_32

  1893.     simd_align_64

  1894. "

  1895. 

  1896. BUILTIN_LIST="

  1897.     atomic_cas_ptr

  1898.     machine_rw_barrier

  1899.     MemoryBarrier

  1900.     mm_empty

  1901.     rdtsc

  1902.     sarestart

  1903.     sem_timedwait

  1904.     sync_val_compare_and_swap

  1905. "

  1906. HAVE_LIST_CMDLINE="

  1907.     inline_asm

  1908.     symver

  1909.     x86asm

  1910. "

  1911. 

  1912. HAVE_LIST_PUB="

  1913.     bigendian

  1914.     fast_unaligned

  1915. "

  1916. 

  1917. HEADERS_LIST="

  1918.     arpa_inet_h

  1919.     asm_types_h

  1920.     cdio_paranoia_h

  1921.     cdio_paranoia_paranoia_h

  1922.     cuda_h

  1923.     dispatch_dispatch_h

  1924.     dev_bktr_ioctl_bt848_h

  1925.     dev_bktr_ioctl_meteor_h

  1926.     dev_ic_bt8xx_h

  1927.     dev_video_bktr_ioctl_bt848_h

  1928.     dev_video_meteor_ioctl_meteor_h

  1929.     direct_h

  1930.     dirent_h

  1931.     dxgidebug_h

  1932.     dxva_h

  1933.     ES2_gl_h

  1934.     gsm_h

  1935.     io_h

  1936.     machine_ioctl_bt848_h

  1937.     machine_ioctl_meteor_h

  1938.     malloc_h

  1939.     opencv2_core_core_c_h

  1940.     OpenGL_gl3_h

  1941.     poll_h

  1942.     sys_param_h

  1943.     sys_resource_h

  1944.     sys_select_h

  1945.     sys_soundcard_h

  1946.     sys_time_h

  1947.     sys_un_h

  1948.     sys_videoio_h

  1949.     termios_h

  1950.     udplite_h

  1951.     unistd_h

  1952.     valgrind_valgrind_h

  1953.     windows_h

  1954.     winsock2_h

  1955. "

  1956. 

  1957. INTRINSICS_LIST="

  1958.     intrinsics_neon

  1959. "

  1960. 

  1961. COMPLEX_FUNCS="

  1962.     cabs

  1963.     cexp

  1964. "

  1965. 

  1966. MATH_FUNCS="

  1967.     atanf

  1968.     atan2f

  1969.     cbrt

  1970.     cbrtf

  1971.     copysign

  1972.     cosf

  1973.     erf

  1974.     exp2

  1975.     exp2f

  1976.     expf

  1977.     hypot

  1978.     isfinite

  1979.     isinf

  1980.     isnan

  1981.     ldexpf

  1982.     llrint

  1983.     llrintf

  1984.     log2

  1985.     log2f

  1986.     log10f

  1987.     lrint

  1988.     lrintf

  1989.     powf

  1990.     rint

  1991.     round

  1992.     roundf

  1993.     sinf

  1994.     trunc

  1995.     truncf

  1996. "

  1997. 

  1998. SYSTEM_FEATURES="

  1999.     dos_paths

  2000.     libc_msvcrt

  2001.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2002.     section_data_rel_ro

  2003.     threads

  2004.     uwp

  2005.     winrt

  2006. "

  2007. 

  2008. SYSTEM_FUNCS="

  2009.     access

  2010.     aligned_malloc

  2011.     arc4random

  2012.     clock_gettime

  2013.     closesocket

  2014.     CommandLineToArgvW

  2015.     fcntl

  2016.     getaddrinfo

  2017.     gethrtime

  2018.     getopt

  2019.     GetProcessAffinityMask

  2020.     GetProcessMemoryInfo

  2021.     GetProcessTimes

  2022.     getrusage

  2023.     GetSystemTimeAsFileTime

  2024.     gettimeofday

  2025.     glob

  2026.     glXGetProcAddress

  2027.     gmtime_r

  2028.     inet_aton

  2029.     isatty

  2030.     kbhit

  2031.     localtime_r

  2032.     lstat

  2033.     lzo1x_999_compress

  2034.     mach_absolute_time

  2035.     MapViewOfFile

  2036.     memalign

  2037.     mkstemp

  2038.     mmap

  2039.     mprotect

  2040.     nanosleep

  2041.     PeekNamedPipe

  2042.     posix_memalign

  2043.     pthread_cancel

  2044.     sched_getaffinity

  2045.     SecItemImport

  2046.     SetConsoleTextAttribute

  2047.     SetConsoleCtrlHandler

  2048.     setmode

  2049.     setrlimit

  2050.     Sleep

  2051.     strerror_r

  2052.     sysconf

  2053.     sysctl

  2054.     usleep

  2055.     UTGetOSTypeFromString

  2056.     VirtualAlloc

  2057.     wglGetProcAddress

  2058. "

  2059. 

  2060. SYSTEM_LIBRARIES="

  2061.     vaapi_drm

  2062.     vaapi_x11

  2063.     vdpau_x11

  2064.     wincrypt

  2065. "

  2066. 

  2067. TOOLCHAIN_FEATURES="

  2068.     as_arch_directive

  2069.     as_fpu_directive

  2070.     as_func

  2071.     as_object_arch

  2072.     asm_mod_q

  2073.     blocks_extension

  2074.     ebp_available

  2075.     ebx_available

  2076.     gnu_as

  2077.     gnu_windres

  2078.     ibm_asm

  2079.     inline_asm_direct_symbol_refs

  2080.     inline_asm_labels

  2081.     inline_asm_nonlocal_labels

  2082.     pragma_deprecated

  2083.     rsync_contimeout

  2084.     symver_asm_label

  2085.     symver_gnu_asm

  2086.     vfp_args

  2087.     xform_asm

  2088.     xmm_clobbers

  2089. "

  2090. 

  2091. TYPES_LIST="

  2092.     kCMVideoCodecType_HEVC

  2093.     socklen_t

  2094.     struct_addrinfo

  2095.     struct_group_source_req

  2096.     struct_ip_mreq_source

  2097.     struct_ipv6_mreq

  2098.     struct_msghdr_msg_flags

  2099.     struct_pollfd

  2100.     struct_rusage_ru_maxrss

  2101.     struct_sctp_event_subscribe

  2102.     struct_sockaddr_in6

  2103.     struct_sockaddr_sa_len

  2104.     struct_sockaddr_storage

  2105.     struct_stat_st_mtim_tv_nsec

  2106.     struct_v4l2_frmivalenum_discrete

  2107. "

  2108. 

  2109. HAVE_LIST="

  2110.     $ARCH_EXT_LIST

  2111.     $(add_suffix _external $ARCH_EXT_LIST)

  2112.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2113.     $ARCH_FEATURES

  2114.     $BUILTIN_LIST

  2115.     $COMPLEX_FUNCS

  2116.     $HAVE_LIST_CMDLINE

  2117.     $HAVE_LIST_PUB

  2118.     $HEADERS_LIST

  2119.     $INTRINSICS_LIST

  2120.     $MATH_FUNCS

  2121.     $SYSTEM_FEATURES

  2122.     $SYSTEM_FUNCS

  2123.     $SYSTEM_LIBRARIES

  2124.     $THREADS_LIST

  2125.     $TOOLCHAIN_FEATURES

  2126.     $TYPES_LIST

  2127.     makeinfo

  2128.     makeinfo_html

  2129.     opencl_d3d11

  2130.     opencl_drm_arm

  2131.     opencl_dxva2

  2132.     opencl_vaapi_beignet

  2133.     opencl_vaapi_intel_media

  2134.     perl

  2135.     pod2man

  2136.     texi2html

  2137. "

  2138. 

  2139. # options emitted with CONFIG_ prefix but not available on the command line

  2140. CONFIG_EXTRA="

  2141.     aandcttables

  2142.     ac3dsp

  2143.     adts_header

  2144.     audio_frame_queue

  2145.     audiodsp

  2146.     blockdsp

  2147.     bswapdsp

  2148.     cabac

  2149.     cbs

  2150.     cbs_h264

  2151.     cbs_h265

  2152.     cbs_mpeg2

  2153.     dirac_parse

  2154.     dvprofile

  2155.     exif

  2156.     faandct

  2157.     faanidct

  2158.     fdctdsp

  2159.     flacdsp

  2160.     fmtconvert

  2161.     frame_thread_encoder

  2162.     g722dsp

  2163.     golomb

  2164.     gplv3

  2165.     h263dsp

  2166.     h264chroma

  2167.     h264dsp

  2168.     h264parse

  2169.     h264pred

  2170.     h264qpel

  2171.     hevcparse

  2172.     hpeldsp

  2173.     huffman

  2174.     huffyuvdsp

  2175.     huffyuvencdsp

  2176.     idctdsp

  2177.     iirfilter

  2178.     mdct15

  2179.     intrax8

  2180.     iso_media

  2181.     ividsp

  2182.     jpegtables

  2183.     lgplv3

  2184.     libx262

  2185.     llauddsp

  2186.     llviddsp

  2187.     llvidencdsp

  2188.     lpc

  2189.     lzf

  2190.     me_cmp

  2191.     mpeg_er

  2192.     mpegaudio

  2193.     mpegaudiodsp

  2194.     mpegaudioheader

  2195.     mpegvideo

  2196.     mpegvideoenc

  2197.     mss34dsp

  2198.     pixblockdsp

  2199.     qpeldsp

  2200.     qsv

  2201.     qsvdec

  2202.     qsvenc

  2203.     qsvvpp

  2204.     rangecoder

  2205.     riffdec

  2206.     riffenc

  2207.     rtpdec

  2208.     rtpenc_chain

  2209.     rv34dsp

  2210.     sinewin

  2211.     snappy

  2212.     srtp

  2213.     startcode

  2214.     texturedsp

  2215.     texturedspenc

  2216.     tpeldsp

  2217.     vaapi_1

  2218.     vaapi_encode

  2219.     vc1dsp

  2220.     videodsp

  2221.     vp3dsp

  2222.     vp56dsp

  2223.     vp8dsp

  2224.     wma_freqs

  2225.     wmv2dsp

  2226. "

  2227. 

  2228. CMDLINE_SELECT="

  2229.     $ARCH_EXT_LIST

  2230.     $CONFIG_LIST

  2231.     $HAVE_LIST_CMDLINE

  2232.     $THREADS_LIST

  2233.     asm

  2234.     cross_compile

  2235.     debug

  2236.     extra_warnings

  2237.     logging

  2238.     lto

  2239.     optimizations

  2240.     rpath

  2241.     stripping

  2242. "

  2243. 

  2244. PATHS_LIST="

  2245.     bindir

  2246.     datadir

  2247.     docdir

  2248.     incdir

  2249.     libdir

  2250.     mandir

  2251.     pkgconfigdir

  2252.     prefix

  2253.     shlibdir

  2254.     install_name_dir

  2255. "

  2256. 

  2257. CMDLINE_SET="

  2258.     $PATHS_LIST

  2259.     ar

  2260.     arch

  2261.     as

  2262.     assert_level

  2263.     build_suffix

  2264.     cc

  2265.     objcc

  2266.     cpu

  2267.     cross_prefix

  2268.     custom_allocator

  2269.     cxx

  2270.     dep_cc

  2271.     doxygen

  2272.     env

  2273.     extra_version

  2274.     gas

  2275.     host_cc

  2276.     host_cflags

  2277.     host_extralibs

  2278.     host_ld

  2279.     host_ldflags

  2280.     host_os

  2281.     ignore_tests

  2282.     install

  2283.     ld

  2284.     ln_s

  2285.     logfile

  2286.     malloc_prefix

  2287.     nm

  2288.     optflags

  2289.     nvccflags

  2290.     pkg_config

  2291.     pkg_config_flags

  2292.     progs_suffix

  2293.     random_seed

  2294.     ranlib

  2295.     samples

  2296.     strip

  2297.     sws_max_filter_size

  2298.     sysinclude

  2299.     sysroot

  2300.     target_exec

  2301.     target_os

  2302.     target_path

  2303.     target_samples

  2304.     tempprefix

  2305.     toolchain

  2306.     valgrind

  2307.     x86asmexe

  2308. "

  2309. 

  2310. CMDLINE_APPEND="

  2311.     extra_cflags

  2312.     extra_cxxflags

  2313.     extra_objcflags

  2314.     host_cppflags

  2315. "

  2316. 

  2317. # code dependency declarations

  2318. 

  2319. # architecture extensions

  2320. 

  2321. armv5te_deps="arm"

  2322. armv6_deps="arm"

  2323. armv6t2_deps="arm"

  2324. armv8_deps="aarch64"

  2325. neon_deps_any="aarch64 arm"

  2326. intrinsics_neon_deps="neon"

  2327. vfp_deps_any="aarch64 arm"

  2328. vfpv3_deps="vfp"

  2329. setend_deps="arm"

  2330. 

  2331. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2332. 

  2333. altivec_deps="ppc"

  2334. dcbzl_deps="ppc"

  2335. ldbrx_deps="ppc"

  2336. ppc4xx_deps="ppc"

  2337. vsx_deps="altivec"

  2338. power8_deps="vsx"

  2339. 

  2340. loongson2_deps="mips"

  2341. loongson3_deps="mips"

  2342. mips32r2_deps="mips"

  2343. mips32r5_deps="mips"

  2344. mips32r6_deps="mips"

  2345. mips64r2_deps="mips"

  2346. mips64r6_deps="mips"

  2347. mipsfpu_deps="mips"

  2348. mipsdsp_deps="mips"

  2349. mipsdspr2_deps="mips"

  2350. mmi_deps="mips"

  2351. msa_deps="mipsfpu"

  2352. 

  2353. cpunop_deps="i686"

  2354. x86_64_select="i686"

  2355. x86_64_suggest="fast_cmov"

  2356. 

  2357. amd3dnow_deps="mmx"

  2358. amd3dnowext_deps="amd3dnow"

  2359. i686_deps="x86"

  2360. mmx_deps="x86"

  2361. mmxext_deps="mmx"

  2362. sse_deps="mmxext"

  2363. sse2_deps="sse"

  2364. sse3_deps="sse2"

  2365. ssse3_deps="sse3"

  2366. sse4_deps="ssse3"

  2367. sse42_deps="sse4"

  2368. aesni_deps="sse42"

  2369. avx_deps="sse42"

  2370. xop_deps="avx"

  2371. fma3_deps="avx"

  2372. fma4_deps="avx"

  2373. avx2_deps="avx"

  2374. avx512_deps="avx2"

  2375. 

  2376. mmx_external_deps="x86asm"

  2377. mmx_inline_deps="inline_asm x86"

  2378. mmx_suggest="mmx_external mmx_inline"

  2379. 

  2380. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2381.     eval dep=\$${ext}_deps

  2382.     eval ${ext}_external_deps='"${dep}_external"'

  2383.     eval ${ext}_inline_deps='"${dep}_inline"'

  2384.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2385. done

  2386. 

  2387. aligned_stack_if_any="aarch64 ppc x86"

  2388. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2389. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2390. fast_unaligned_if_any="aarch64 ppc x86"

  2391. simd_align_16_if_any="altivec neon sse"

  2392. simd_align_32_if_any="avx"

  2393. simd_align_64_if_any="avx512"

  2394. 

  2395. # system capabilities

  2396. symver_if_any="symver_asm_label symver_gnu_asm"

  2397. valgrind_backtrace_conflict="optimizations"

  2398. valgrind_backtrace_deps="valgrind_valgrind_h"

  2399. 

  2400. # threading support

  2401. atomics_gcc_if="sync_val_compare_and_swap"

  2402. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2403. atomics_win32_if="MemoryBarrier"

  2404. atomics_native_if_any="$ATOMICS_LIST"

  2405. w32threads_deps="atomics_native"

  2406. threads_if_any="$THREADS_LIST"

  2407. 

  2408. # subsystems

  2409. cbs_h264_select="cbs golomb"

  2410. cbs_h265_select="cbs golomb"

  2411. cbs_mpeg2_select="cbs"

  2412. dct_select="rdft"

  2413. dirac_parse_select="golomb"

  2414. error_resilience_select="me_cmp"

  2415. faandct_deps="faan"

  2416. faandct_select="fdctdsp"

  2417. faanidct_deps="faan"

  2418. faanidct_select="idctdsp"

  2419. h264dsp_select="startcode"

  2420. hevcparse_select="golomb"

  2421. frame_thread_encoder_deps="encoders threads"

  2422. intrax8_select="blockdsp idctdsp"

  2423. mdct_select="fft"

  2424. mdct15_select="fft"

  2425. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2426. mpeg_er_select="error_resilience"

  2427. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2428. mpegaudiodsp_select="dct"

  2429. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2430. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2431. vc1dsp_select="h264chroma qpeldsp startcode"

  2432. rdft_select="fft"

  2433. 

  2434. # decoders / encoders

  2435. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2436. aac_fixed_decoder_select="mdct sinewin"

  2437. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2438. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2439. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2440. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2441. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2442. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2443. adpcm_g722_decoder_select="g722dsp"

  2444. adpcm_g722_encoder_select="g722dsp"

  2445. aic_decoder_select="golomb idctdsp"

  2446. alac_encoder_select="lpc"

  2447. als_decoder_select="bswapdsp"

  2448. amrnb_decoder_select="lsp"

  2449. amrwb_decoder_select="lsp"

  2450. amv_decoder_select="sp5x_decoder exif"

  2451. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2452. ape_decoder_select="bswapdsp llauddsp"

  2453. apng_decoder_deps="zlib"

  2454. apng_encoder_deps="zlib"

  2455. apng_encoder_select="llvidencdsp"

  2456. aptx_decoder_select="audio_frame_queue"

  2457. aptx_encoder_select="audio_frame_queue"

  2458. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2459. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2460. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2461. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2462. atrac1_decoder_select="mdct sinewin"

  2463. atrac3_decoder_select="mdct"

  2464. atrac3p_decoder_select="mdct sinewin"

  2465. avrn_decoder_select="exif jpegtables"

  2466. bink_decoder_select="blockdsp hpeldsp"

  2467. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2468. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2469. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2470. clearvideo_decoder_select="idctdsp"

  2471. cllc_decoder_select="bswapdsp"

  2472. comfortnoise_encoder_select="lpc"

  2473. cook_decoder_select="audiodsp mdct sinewin"

  2474. cscd_decoder_select="lzo"

  2475. cscd_decoder_suggest="zlib"

  2476. dca_decoder_select="mdct"

  2477. dds_decoder_select="texturedsp"

  2478. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2479. dnxhd_decoder_select="blockdsp idctdsp"

  2480. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2481. dolby_e_decoder_select="mdct"

  2482. dvvideo_decoder_select="dvprofile idctdsp"

  2483. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2484. dxa_decoder_deps="zlib"

  2485. dxv_decoder_select="lzf texturedsp"

  2486. eac3_decoder_select="ac3_decoder"

  2487. eac3_encoder_select="ac3_encoder"

  2488. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2489. eatgq_decoder_select="aandcttables"

  2490. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2491. exr_decoder_deps="zlib"

  2492. ffv1_decoder_select="rangecoder"

  2493. ffv1_encoder_select="rangecoder"

  2494. ffvhuff_decoder_select="huffyuv_decoder"

  2495. ffvhuff_encoder_select="huffyuv_encoder"

  2496. fic_decoder_select="golomb"

  2497. flac_decoder_select="flacdsp"

  2498. flac_encoder_select="bswapdsp flacdsp lpc"

  2499. flashsv2_decoder_deps="zlib"

  2500. flashsv2_encoder_deps="zlib"

  2501. flashsv_decoder_deps="zlib"

  2502. flashsv_encoder_deps="zlib"

  2503. flv_decoder_select="h263_decoder"

  2504. flv_encoder_select="h263_encoder"

  2505. fourxm_decoder_select="blockdsp bswapdsp"

  2506. fraps_decoder_select="bswapdsp huffman"

  2507. g2m_decoder_deps="zlib"

  2508. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2509. g729_decoder_select="audiodsp"

  2510. h261_decoder_select="mpegvideo"

  2511. h261_encoder_select="aandcttables mpegvideoenc"

  2512. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2513. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2514. h263i_decoder_select="h263_decoder"

  2515. h263p_decoder_select="h263_decoder"

  2516. h263p_encoder_select="h263_encoder"

  2517. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2518. h264_decoder_suggest="error_resilience"

  2519. hap_decoder_select="snappy texturedsp"

  2520. hap_encoder_deps="libsnappy"

  2521. hap_encoder_select="texturedspenc"

  2522. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2523. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2524. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2525. iac_decoder_select="imc_decoder"

  2526. imc_decoder_select="bswapdsp fft mdct sinewin"

  2527. indeo3_decoder_select="hpeldsp"

  2528. indeo4_decoder_select="ividsp"

  2529. indeo5_decoder_select="ividsp"

  2530. interplay_video_decoder_select="hpeldsp"

  2531. jpegls_decoder_select="mjpeg_decoder"

  2532. jv_decoder_select="blockdsp"

  2533. lagarith_decoder_select="llviddsp"

  2534. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2535. magicyuv_decoder_select="llviddsp"

  2536. magicyuv_encoder_select="llvidencdsp"

  2537. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2538. metasound_decoder_select="lsp mdct sinewin"

  2539. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2540. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2541. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2542. mjpegb_decoder_select="mjpeg_decoder"

  2543. mlp_decoder_select="mlp_parser"

  2544. mlp_encoder_select="lpc"

  2545. motionpixels_decoder_select="bswapdsp"

  2546. mp1_decoder_select="mpegaudio"

  2547. mp1float_decoder_select="mpegaudio"

  2548. mp2_decoder_select="mpegaudio"

  2549. mp2float_decoder_select="mpegaudio"

  2550. mp3_decoder_select="mpegaudio"

  2551. mp3adu_decoder_select="mpegaudio"

  2552. mp3adufloat_decoder_select="mpegaudio"

  2553. mp3float_decoder_select="mpegaudio"

  2554. mp3on4_decoder_select="mpegaudio"

  2555. mp3on4float_decoder_select="mpegaudio"

  2556. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2557. mpc8_decoder_select="mpegaudiodsp"

  2558. mpegvideo_decoder_select="mpegvideo"

  2559. mpeg1video_decoder_select="mpegvideo"

  2560. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2561. mpeg2video_decoder_select="mpegvideo"

  2562. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2563. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2564. mpeg4_encoder_select="h263_encoder"

  2565. msa1_decoder_select="mss34dsp"

  2566. mscc_decoder_deps="zlib"

  2567. msmpeg4v1_decoder_select="h263_decoder"

  2568. msmpeg4v2_decoder_select="h263_decoder"

  2569. msmpeg4v2_encoder_select="h263_encoder"

  2570. msmpeg4v3_decoder_select="h263_decoder"

  2571. msmpeg4v3_encoder_select="h263_encoder"

  2572. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2573. mts2_decoder_select="mss34dsp"

  2574. mxpeg_decoder_select="mjpeg_decoder"

  2575. nellymoser_decoder_select="mdct sinewin"

  2576. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2577. nuv_decoder_select="idctdsp lzo"

  2578. on2avc_decoder_select="mdct"

  2579. opus_decoder_deps="swresample"

  2580. opus_decoder_select="mdct15"

  2581. opus_encoder_select="audio_frame_queue mdct15"

  2582. png_decoder_deps="zlib"

  2583. png_encoder_deps="zlib"

  2584. png_encoder_select="llvidencdsp"

  2585. prores_decoder_select="blockdsp idctdsp"

  2586. prores_encoder_select="fdctdsp"

  2587. qcelp_decoder_select="lsp"

  2588. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2589. ra_144_decoder_select="audiodsp"

  2590. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2591. ralf_decoder_select="golomb"

  2592. rawvideo_decoder_select="bswapdsp"

  2593. rscc_decoder_deps="zlib"

  2594. rtjpeg_decoder_select="me_cmp"

  2595. rv10_decoder_select="h263_decoder"

  2596. rv10_encoder_select="h263_encoder"

  2597. rv20_decoder_select="h263_decoder"

  2598. rv20_encoder_select="h263_encoder"

  2599. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2600. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2601. screenpresso_decoder_deps="zlib"

  2602. shorten_decoder_select="bswapdsp"

  2603. sipr_decoder_select="lsp"

  2604. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2605. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2606. sonic_decoder_select="golomb rangecoder"

  2607. sonic_encoder_select="golomb rangecoder"

  2608. sonic_ls_encoder_select="golomb rangecoder"

  2609. sp5x_decoder_select="mjpeg_decoder"

  2610. srgc_decoder_deps="zlib"

  2611. svq1_decoder_select="hpeldsp"

  2612. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2613. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2614. svq3_decoder_suggest="zlib"

  2615. tak_decoder_select="audiodsp"

  2616. tdsc_decoder_deps="zlib"

  2617. tdsc_decoder_select="mjpeg_decoder"

  2618. theora_decoder_select="vp3_decoder"

  2619. thp_decoder_select="mjpeg_decoder"

  2620. tiff_decoder_suggest="zlib lzma"

  2621. tiff_encoder_suggest="zlib"

  2622. truehd_decoder_select="mlp_parser"

  2623. truehd_encoder_select="lpc"

  2624. truemotion2_decoder_select="bswapdsp"

  2625. truespeech_decoder_select="bswapdsp"

  2626. tscc_decoder_deps="zlib"

  2627. twinvq_decoder_select="mdct lsp sinewin"

  2628. txd_decoder_select="texturedsp"

  2629. utvideo_decoder_select="bswapdsp llviddsp"

  2630. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2631. vble_decoder_select="llviddsp"

  2632. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2633. vc1image_decoder_select="vc1_decoder"

  2634. vorbis_decoder_select="mdct"

  2635. vorbis_encoder_select="mdct"

  2636. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2637. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2638. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2639. vp6a_decoder_select="vp6_decoder"

  2640. vp6f_decoder_select="vp6_decoder"

  2641. vp7_decoder_select="h264pred videodsp vp8dsp"

  2642. vp8_decoder_select="h264pred videodsp vp8dsp"

  2643. vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"

  2644. webp_decoder_select="vp8_decoder exif"

  2645. wmalossless_decoder_select="llauddsp"

  2646. wmapro_decoder_select="mdct sinewin wma_freqs"

  2647. wmav1_decoder_select="mdct sinewin wma_freqs"

  2648. wmav1_encoder_select="mdct sinewin wma_freqs"

  2649. wmav2_decoder_select="mdct sinewin wma_freqs"

  2650. wmav2_encoder_select="mdct sinewin wma_freqs"

  2651. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2652. wmv1_decoder_select="h263_decoder"

  2653. wmv1_encoder_select="h263_encoder"

  2654. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2655. wmv2_encoder_select="h263_encoder wmv2dsp"

  2656. wmv3_decoder_select="vc1_decoder"

  2657. wmv3image_decoder_select="wmv3_decoder"

  2658. xma1_decoder_select="wmapro_decoder"

  2659. xma2_decoder_select="wmapro_decoder"

  2660. zerocodec_decoder_deps="zlib"

  2661. zlib_decoder_deps="zlib"

  2662. zlib_encoder_deps="zlib"

  2663. zmbv_decoder_deps="zlib"

  2664. zmbv_encoder_deps="zlib"

  2665. 

  2666. # hardware accelerators

  2667. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2668. cuda_deps_any="libdl LoadLibrary"

  2669. cuvid_deps="cuda"

  2670. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2671. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2672. nvdec_deps="cuda"

  2673. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2674. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2675. xvmc_deps="X11_extensions_XvMClib_h"

  2676. 

  2677. h263_vaapi_hwaccel_deps="vaapi"

  2678. h263_vaapi_hwaccel_select="h263_decoder"

  2679. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2680. h263_videotoolbox_hwaccel_select="h263_decoder"

  2681. h264_d3d11va_hwaccel_deps="d3d11va"

  2682. h264_d3d11va_hwaccel_select="h264_decoder"

  2683. h264_d3d11va2_hwaccel_deps="d3d11va"

  2684. h264_d3d11va2_hwaccel_select="h264_decoder"

  2685. h264_dxva2_hwaccel_deps="dxva2"

  2686. h264_dxva2_hwaccel_select="h264_decoder"

  2687. h264_nvdec_hwaccel_deps="nvdec"

  2688. h264_nvdec_hwaccel_select="h264_decoder"

  2689. h264_vaapi_hwaccel_deps="vaapi"

  2690. h264_vaapi_hwaccel_select="h264_decoder"

  2691. h264_vdpau_hwaccel_deps="vdpau"

  2692. h264_vdpau_hwaccel_select="h264_decoder"

  2693. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2694. h264_videotoolbox_hwaccel_select="h264_decoder"

  2695. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2696. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2697. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2698. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2699. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2700. hevc_dxva2_hwaccel_select="hevc_decoder"

  2701. hevc_nvdec_hwaccel_deps="nvdec"

  2702. hevc_nvdec_hwaccel_select="hevc_decoder"

  2703. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2704. hevc_vaapi_hwaccel_select="hevc_decoder"

  2705. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2706. hevc_vdpau_hwaccel_select="hevc_decoder"

  2707. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2708. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2709. mpeg_xvmc_hwaccel_deps="xvmc"

  2710. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2711. mpeg1_nvdec_hwaccel_deps="nvdec"

  2712. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2713. mpeg1_vdpau_hwaccel_deps="vdpau"

  2714. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2715. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2716. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2717. mpeg1_xvmc_hwaccel_deps="xvmc"

  2718. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2719. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2720. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2721. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2722. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2723. mpeg2_dxva2_hwaccel_deps="dxva2"

  2724. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2725. mpeg2_nvdec_hwaccel_deps="nvdec"

  2726. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2727. mpeg2_vaapi_hwaccel_deps="vaapi"

  2728. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2729. mpeg2_vdpau_hwaccel_deps="vdpau"

  2730. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2731. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2732. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2733. mpeg2_xvmc_hwaccel_deps="xvmc"

  2734. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2735. mpeg4_nvdec_hwaccel_deps="nvdec"

  2736. mpeg4_nvdec_hwaccel_select="mpeg4_decoder"

  2737. mpeg4_vaapi_hwaccel_deps="vaapi"

  2738. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2739. mpeg4_vdpau_hwaccel_deps="vdpau"

  2740. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2741. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2742. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2743. vc1_d3d11va_hwaccel_deps="d3d11va"

  2744. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2745. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2746. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2747. vc1_dxva2_hwaccel_deps="dxva2"

  2748. vc1_dxva2_hwaccel_select="vc1_decoder"

  2749. vc1_nvdec_hwaccel_deps="nvdec"

  2750. vc1_nvdec_hwaccel_select="vc1_decoder"

  2751. vc1_vaapi_hwaccel_deps="vaapi"

  2752. vc1_vaapi_hwaccel_select="vc1_decoder"

  2753. vc1_vdpau_hwaccel_deps="vdpau"

  2754. vc1_vdpau_hwaccel_select="vc1_decoder"

  2755. vp8_nvdec_hwaccel_deps="nvdec"

  2756. vp8_nvdec_hwaccel_select="vp8_decoder"

  2757. vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"

  2758. vp8_vaapi_hwaccel_select="vp8_decoder"

  2759. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2760. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2761. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2762. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2763. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2764. vp9_dxva2_hwaccel_select="vp9_decoder"

  2765. vp9_nvdec_hwaccel_deps="nvdec"

  2766. vp9_nvdec_hwaccel_select="vp9_decoder"

  2767. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2768. vp9_vaapi_hwaccel_select="vp9_decoder"

  2769. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2770. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2771. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2772. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2773. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2774. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2775. 

  2776. # hardware-accelerated codecs

  2777. omx_deps="libdl pthreads"

  2778. omx_rpi_select="omx"

  2779. qsv_deps="libmfx"

  2780. qsvdec_select="qsv"

  2781. qsvenc_select="qsv"

  2782. qsvvpp_select="qsv"

  2783. vaapi_encode_deps="vaapi"

  2784. v4l2_m2m_deps_any="linux_videodev2_h"

  2785. 

  2786. hwupload_cuda_filter_deps="cuda"

  2787. scale_npp_filter_deps="cuda libnpp"

  2788. scale_cuda_filter_deps="cuda_sdk"

  2789. thumbnail_cuda_filter_deps="cuda_sdk"

  2790. 

  2791. amf_deps_any="libdl LoadLibrary"

  2792. nvenc_deps="cuda"

  2793. nvenc_deps_any="libdl LoadLibrary"

  2794. nvenc_encoder_deps="nvenc"

  2795. 

  2796. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2797. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2798. h264_amf_encoder_deps="amf"

  2799. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2800. h264_cuvid_decoder_deps="cuvid"

  2801. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2802. h264_mediacodec_decoder_deps="mediacodec"

  2803. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2804. h264_mmal_decoder_deps="mmal"

  2805. h264_nvenc_encoder_deps="nvenc"

  2806. h264_omx_encoder_deps="omx"

  2807. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"

  2808. h264_qsv_encoder_select="qsvenc"

  2809. h264_rkmpp_decoder_deps="rkmpp"

  2810. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2811. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2812. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2813. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2814. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2815. hevc_amf_encoder_deps="amf"

  2816. hevc_cuvid_decoder_deps="cuvid"

  2817. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2818. hevc_mediacodec_decoder_deps="mediacodec"

  2819. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2820. hevc_nvenc_encoder_deps="nvenc"

  2821. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"

  2822. hevc_qsv_encoder_select="hevcparse qsvenc"

  2823. hevc_rkmpp_decoder_deps="rkmpp"

  2824. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2825. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2826. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2827. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2828. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2829. mjpeg_cuvid_decoder_deps="cuvid"

  2830. mjpeg_qsv_encoder_deps="libmfx"

  2831. mjpeg_qsv_encoder_select="qsvenc"

  2832. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2833. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2834. mpeg1_cuvid_decoder_deps="cuvid"

  2835. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2836. mpeg2_crystalhd_decoder_select="crystalhd"

  2837. mpeg2_cuvid_decoder_deps="cuvid"

  2838. mpeg2_mmal_decoder_deps="mmal"

  2839. mpeg2_mediacodec_decoder_deps="mediacodec"

  2840. mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"

  2841. mpeg2_qsv_encoder_select="qsvenc"

  2842. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2843. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2844. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2845. mpeg4_crystalhd_decoder_select="crystalhd"

  2846. mpeg4_cuvid_decoder_deps="cuvid"

  2847. mpeg4_mediacodec_decoder_deps="mediacodec"

  2848. mpeg4_mmal_decoder_deps="mmal"

  2849. mpeg4_omx_encoder_deps="omx"

  2850. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2851. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2852. msmpeg4_crystalhd_decoder_select="crystalhd"

  2853. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2854. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2855. vc1_crystalhd_decoder_select="crystalhd"

  2856. vc1_cuvid_decoder_deps="cuvid"

  2857. vc1_mmal_decoder_deps="mmal"

  2858. vc1_qsv_decoder_select="qsvdec vc1_parser"

  2859. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2860. vp8_cuvid_decoder_deps="cuvid"

  2861. vp8_mediacodec_decoder_deps="mediacodec"

  2862. vp8_qsv_decoder_select="qsvdec vp8_parser"

  2863. vp8_rkmpp_decoder_deps="rkmpp"

  2864. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2865. vp8_vaapi_encoder_select="vaapi_encode"

  2866. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2867. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2868. vp9_cuvid_decoder_deps="cuvid"

  2869. vp9_mediacodec_decoder_deps="mediacodec"

  2870. vp9_rkmpp_decoder_deps="rkmpp"

  2871. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2872. vp9_vaapi_encoder_select="vaapi_encode"

  2873. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2874. wmv3_crystalhd_decoder_select="crystalhd"

  2875. 

  2876. # parsers

  2877. aac_parser_select="adts_header"

  2878. h264_parser_select="golomb h264dsp h264parse"

  2879. hevc_parser_select="hevcparse"

  2880. mpegaudio_parser_select="mpegaudioheader"

  2881. mpegvideo_parser_select="mpegvideo"

  2882. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2883. vc1_parser_select="vc1dsp"

  2884. 

  2885. # bitstream_filters

  2886. aac_adtstoasc_bsf_select="adts_header"

  2887. h264_metadata_bsf_select="cbs_h264"

  2888. h264_redundant_pps_bsf_select="cbs_h264"

  2889. hevc_metadata_bsf_select="cbs_h265"

  2890. mjpeg2jpeg_bsf_select="jpegtables"

  2891. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2892. trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"

  2893. 

  2894. # external libraries

  2895. aac_at_decoder_deps="audiotoolbox"

  2896. aac_at_decoder_select="aac_adtstoasc_bsf"

  2897. ac3_at_decoder_deps="audiotoolbox"

  2898. ac3_at_decoder_select="ac3_parser"

  2899. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2900. alac_at_decoder_deps="audiotoolbox"

  2901. amr_nb_at_decoder_deps="audiotoolbox"

  2902. avisynth_deps_any="libdl LoadLibrary"

  2903. avisynth_demuxer_deps="avisynth"

  2904. avisynth_demuxer_select="riffdec"

  2905. eac3_at_decoder_deps="audiotoolbox"

  2906. eac3_at_decoder_select="ac3_parser"

  2907. gsm_ms_at_decoder_deps="audiotoolbox"

  2908. ilbc_at_decoder_deps="audiotoolbox"

  2909. mp1_at_decoder_deps="audiotoolbox"

  2910. mp2_at_decoder_deps="audiotoolbox"

  2911. mp3_at_decoder_deps="audiotoolbox"

  2912. mp1_at_decoder_select="mpegaudioheader"

  2913. mp2_at_decoder_select="mpegaudioheader"

  2914. mp3_at_decoder_select="mpegaudioheader"

  2915. pcm_alaw_at_decoder_deps="audiotoolbox"

  2916. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2917. qdmc_at_decoder_deps="audiotoolbox"

  2918. qdm2_at_decoder_deps="audiotoolbox"

  2919. aac_at_encoder_deps="audiotoolbox"

  2920. aac_at_encoder_select="audio_frame_queue"

  2921. alac_at_encoder_deps="audiotoolbox"

  2922. alac_at_encoder_select="audio_frame_queue"

  2923. ilbc_at_encoder_deps="audiotoolbox"

  2924. ilbc_at_encoder_select="audio_frame_queue"

  2925. pcm_alaw_at_encoder_deps="audiotoolbox"

  2926. pcm_alaw_at_encoder_select="audio_frame_queue"

  2927. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2928. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2929. chromaprint_muxer_deps="chromaprint"

  2930. h264_videotoolbox_encoder_deps="pthreads"

  2931. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  2932. hevc_videotoolbox_encoder_deps="pthreads"

  2933. hevc_videotoolbox_encoder_select="videotoolbox_encoder"

  2934. libcelt_decoder_deps="libcelt"

  2935. libfdk_aac_decoder_deps="libfdk_aac"

  2936. libfdk_aac_encoder_deps="libfdk_aac"

  2937. libfdk_aac_encoder_select="audio_frame_queue"

  2938. libgme_demuxer_deps="libgme"

  2939. libgsm_decoder_deps="libgsm"

  2940. libgsm_encoder_deps="libgsm"

  2941. libgsm_ms_decoder_deps="libgsm"

  2942. libgsm_ms_encoder_deps="libgsm"

  2943. libilbc_decoder_deps="libilbc"

  2944. libilbc_encoder_deps="libilbc"

  2945. libkvazaar_encoder_deps="libkvazaar"

  2946. libmodplug_demuxer_deps="libmodplug"

  2947. libmp3lame_encoder_deps="libmp3lame"

  2948. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2949. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2950. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2951. libopencore_amrnb_encoder_select="audio_frame_queue"

  2952. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2953. libopenh264_decoder_deps="libopenh264"

  2954. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2955. libopenh264_encoder_deps="libopenh264"

  2956. libopenjpeg_decoder_deps="libopenjpeg"

  2957. libopenjpeg_encoder_deps="libopenjpeg"

  2958. libopenmpt_demuxer_deps="libopenmpt"

  2959. libopus_decoder_deps="libopus"

  2960. libopus_encoder_deps="libopus"

  2961. libopus_encoder_select="audio_frame_queue"

  2962. librsvg_decoder_deps="librsvg"

  2963. libshine_encoder_deps="libshine"

  2964. libshine_encoder_select="audio_frame_queue"

  2965. libspeex_decoder_deps="libspeex"

  2966. libspeex_encoder_deps="libspeex"

  2967. libspeex_encoder_select="audio_frame_queue"

  2968. libtheora_encoder_deps="libtheora"

  2969. libtwolame_encoder_deps="libtwolame"

  2970. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2971. libvorbis_decoder_deps="libvorbis"

  2972. libvorbis_encoder_deps="libvorbis libvorbisenc"

  2973. libvorbis_encoder_select="audio_frame_queue"

  2974. libvpx_vp8_decoder_deps="libvpx"

  2975. libvpx_vp8_encoder_deps="libvpx"

  2976. libvpx_vp9_decoder_deps="libvpx"

  2977. libvpx_vp9_encoder_deps="libvpx"

  2978. libwavpack_encoder_deps="libwavpack"

  2979. libwavpack_encoder_select="audio_frame_queue"

  2980. libwebp_encoder_deps="libwebp"

  2981. libwebp_anim_encoder_deps="libwebp"

  2982. libx262_encoder_deps="libx262"

  2983. libx264_encoder_deps="libx264"

  2984. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2985. libx264rgb_encoder_select="libx264_encoder"

  2986. libx265_encoder_deps="libx265"

  2987. libxavs_encoder_deps="libxavs"

  2988. libxvid_encoder_deps="libxvid"

  2989. libzvbi_teletext_decoder_deps="libzvbi"

  2990. videotoolbox_suggest="coreservices"

  2991. videotoolbox_deps="corefoundation coremedia corevideo"

  2992. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2993. 

  2994. # demuxers / muxers

  2995. ac3_demuxer_select="ac3_parser"

  2996. aiff_muxer_select="iso_media"

  2997. asf_demuxer_select="riffdec"

  2998. asf_o_demuxer_select="riffdec"

  2999. asf_muxer_select="riffenc"

  3000. asf_stream_muxer_select="asf_muxer"

  3001. avi_demuxer_select="iso_media riffdec exif"

  3002. avi_muxer_select="riffenc"

  3003. caf_demuxer_select="iso_media riffdec"

  3004. caf_muxer_select="iso_media"

  3005. dash_muxer_select="mp4_muxer"

  3006. dash_demuxer_deps="libxml2"

  3007. dirac_demuxer_select="dirac_parser"

  3008. dts_demuxer_select="dca_parser"

  3009. dtshd_demuxer_select="dca_parser"

  3010. dv_demuxer_select="dvprofile"

  3011. dv_muxer_select="dvprofile"

  3012. dxa_demuxer_select="riffdec"

  3013. eac3_demuxer_select="ac3_parser"

  3014. f4v_muxer_select="mov_muxer"

  3015. fifo_muxer_deps="threads"

  3016. flac_demuxer_select="flac_parser"

  3017. hds_muxer_select="flv_muxer"

  3018. hls_muxer_select="mpegts_muxer"

  3019. hls_muxer_suggest="gcrypt openssl"

  3020. image2_alias_pix_demuxer_select="image2_demuxer"

  3021. image2_brender_pix_demuxer_select="image2_demuxer"

  3022. ipod_muxer_select="mov_muxer"

  3023. ismv_muxer_select="mov_muxer"

  3024. matroska_audio_muxer_select="matroska_muxer"

  3025. matroska_demuxer_select="iso_media riffdec"

  3026. matroska_demuxer_suggest="bzlib lzo zlib"

  3027. matroska_muxer_select="iso_media riffenc"

  3028. mmf_muxer_select="riffenc"

  3029. mov_demuxer_select="iso_media riffdec"

  3030. mov_demuxer_suggest="zlib"

  3031. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3032. mp3_demuxer_select="mpegaudio_parser"

  3033. mp3_muxer_select="mpegaudioheader"

  3034. mp4_muxer_select="mov_muxer"

  3035. mpegts_demuxer_select="iso_media"

  3036. mpegts_muxer_select="adts_muxer latm_muxer"

  3037. mpegtsraw_demuxer_select="mpegts_demuxer"

  3038. mxf_d10_muxer_select="mxf_muxer"

  3039. mxf_opatom_muxer_select="mxf_muxer"

  3040. nut_muxer_select="riffenc"

  3041. nuv_demuxer_select="riffdec"

  3042. oga_muxer_select="ogg_muxer"

  3043. ogg_demuxer_select="dirac_parse"

  3044. ogv_muxer_select="ogg_muxer"

  3045. opus_muxer_select="ogg_muxer"

  3046. psp_muxer_select="mov_muxer"

  3047. rtp_demuxer_select="sdp_demuxer"

  3048. rtp_muxer_select="golomb"

  3049. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3050. rtsp_demuxer_select="http_protocol rtpdec"

  3051. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3052. sap_demuxer_select="sdp_demuxer"

  3053. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3054. sdp_demuxer_select="rtpdec"

  3055. smoothstreaming_muxer_select="ismv_muxer"

  3056. spdif_demuxer_select="adts_header"

  3057. spdif_muxer_select="adts_header"

  3058. spx_muxer_select="ogg_muxer"

  3059. swf_demuxer_suggest="zlib"

  3060. tak_demuxer_select="tak_parser"

  3061. tg2_muxer_select="mov_muxer"

  3062. tgp_muxer_select="mov_muxer"

  3063. vobsub_demuxer_select="mpegps_demuxer"

  3064. w64_demuxer_select="wav_demuxer"

  3065. w64_muxer_select="wav_muxer"

  3066. wav_demuxer_select="riffdec"

  3067. wav_muxer_select="riffenc"

  3068. webm_muxer_select="iso_media riffenc"

  3069. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3070. wtv_demuxer_select="mpegts_demuxer riffdec"

  3071. wtv_muxer_select="mpegts_muxer riffenc"

  3072. xmv_demuxer_select="riffdec"

  3073. xwma_demuxer_select="riffdec"

  3074. 

  3075. # indevs / outdevs

  3076. alsa_indev_deps="alsa"

  3077. alsa_outdev_deps="alsa"

  3078. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3079. avfoundation_indev_suggest="coregraphics applicationservices"

  3080. avfoundation_indev_extralibs="-framework Foundation"

  3081. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3082. caca_outdev_deps="libcaca"

  3083. decklink_deps_any="libdl LoadLibrary"

  3084. decklink_indev_deps="decklink threads"

  3085. decklink_indev_extralibs="-lstdc++"

  3086. decklink_outdev_deps="decklink threads"

  3087. decklink_outdev_extralibs="-lstdc++"

  3088. libndi_newtek_indev_deps="libndi_newtek"

  3089. libndi_newtek_indev_extralibs="-lndi"

  3090. libndi_newtek_outdev_deps="libndi_newtek"

  3091. libndi_newtek_outdev_extralibs="-lndi"

  3092. dshow_indev_deps="IBaseFilter"

  3093. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3094. fbdev_indev_deps="linux_fb_h"

  3095. fbdev_outdev_deps="linux_fb_h"

  3096. gdigrab_indev_deps="CreateDIBSection"

  3097. gdigrab_indev_extralibs="-lgdi32"

  3098. gdigrab_indev_select="bmp_decoder"

  3099. iec61883_indev_deps="libiec61883"

  3100. jack_indev_deps="libjack"

  3101. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3102. kmsgrab_indev_deps="libdrm"

  3103. lavfi_indev_deps="avfilter"

  3104. libcdio_indev_deps="libcdio"

  3105. libdc1394_indev_deps="libdc1394"

  3106. openal_indev_deps="openal"

  3107. opengl_outdev_deps="opengl"

  3108. oss_indev_deps_any="sys_soundcard_h"

  3109. oss_outdev_deps_any="sys_soundcard_h"

  3110. pulse_indev_deps="libpulse"

  3111. pulse_outdev_deps="libpulse"

  3112. sdl2_outdev_deps="sdl2"

  3113. sndio_indev_deps="sndio"

  3114. sndio_outdev_deps="sndio"

  3115. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3116. v4l2_indev_suggest="libv4l2"

  3117. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3118. v4l2_outdev_suggest="libv4l2"

  3119. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3120. xcbgrab_indev_deps="libxcb"

  3121. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3122. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3123. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3124. 

  3125. # protocols

  3126. async_protocol_deps="threads"

  3127. bluray_protocol_deps="libbluray"

  3128. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3129. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3130. ffrtmpcrypt_protocol_select="tcp_protocol"

  3131. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3132. ffrtmphttp_protocol_select="http_protocol"

  3133. ftp_protocol_select="tcp_protocol"

  3134. gopher_protocol_select="network"

  3135. http_protocol_select="tcp_protocol"

  3136. http_protocol_suggest="zlib"

  3137. httpproxy_protocol_select="tcp_protocol"

  3138. httpproxy_protocol_suggest="zlib"

  3139. https_protocol_select="tls_protocol"

  3140. https_protocol_suggest="zlib"

  3141. icecast_protocol_select="http_protocol"

  3142. librtmp_protocol_deps="librtmp"

  3143. librtmpe_protocol_deps="librtmp"

  3144. librtmps_protocol_deps="librtmp"

  3145. librtmpt_protocol_deps="librtmp"

  3146. librtmpte_protocol_deps="librtmp"

  3147. libsmbclient_protocol_deps="libsmbclient gplv3"

  3148. libssh_protocol_deps="libssh"

  3149. libtls_conflict="openssl gnutls"

  3150. mmsh_protocol_select="http_protocol"

  3151. mmst_protocol_select="network"

  3152. rtmp_protocol_conflict="librtmp_protocol"

  3153. rtmp_protocol_select="tcp_protocol"

  3154. rtmp_protocol_suggest="zlib"

  3155. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3156. rtmpe_protocol_suggest="zlib"

  3157. rtmps_protocol_conflict="librtmp_protocol"

  3158. rtmps_protocol_select="tls_protocol"

  3159. rtmps_protocol_suggest="zlib"

  3160. rtmpt_protocol_select="ffrtmphttp_protocol"

  3161. rtmpt_protocol_suggest="zlib"

  3162. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3163. rtmpte_protocol_suggest="zlib"

  3164. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3165. rtmpts_protocol_suggest="zlib"

  3166. rtp_protocol_select="udp_protocol"

  3167. schannel_conflict="openssl gnutls libtls"

  3168. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3169. sctp_protocol_select="network"

  3170. securetransport_conflict="openssl gnutls libtls"

  3171. srtp_protocol_select="rtp_protocol srtp"

  3172. tcp_protocol_select="network"

  3173. tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"

  3174. tls_protocol_select="tcp_protocol"

  3175. udp_protocol_select="network"

  3176. udplite_protocol_select="network"

  3177. unix_protocol_deps="sys_un_h"

  3178. unix_protocol_select="network"

  3179. 

  3180. # filters

  3181. afftfilt_filter_deps="avcodec"

  3182. afftfilt_filter_select="fft"

  3183. afir_filter_deps="avcodec"

  3184. afir_filter_select="fft"

  3185. amovie_filter_deps="avcodec avformat"

  3186. aresample_filter_deps="swresample"

  3187. ass_filter_deps="libass"

  3188. atempo_filter_deps="avcodec"

  3189. atempo_filter_select="rdft"

  3190. azmq_filter_deps="libzmq"

  3191. blackframe_filter_deps="gpl"

  3192. boxblur_filter_deps="gpl"

  3193. bs2b_filter_deps="libbs2b"

  3194. colormatrix_filter_deps="gpl"

  3195. convolve_filter_deps="avcodec"

  3196. convolve_filter_select="fft"

  3197. coreimage_filter_deps="coreimage appkit"

  3198. coreimage_filter_extralibs="-framework OpenGL"

  3199. coreimagesrc_filter_deps="coreimage appkit"

  3200. coreimagesrc_filter_extralibs="-framework OpenGL"

  3201. cover_rect_filter_deps="avcodec avformat gpl"

  3202. cropdetect_filter_deps="gpl"

  3203. deconvolve_filter_deps="avcodec"

  3204. deconvolve_filter_select="fft"

  3205. deinterlace_qsv_filter_deps="libmfx"

  3206. deinterlace_vaapi_filter_deps="vaapi"

  3207. delogo_filter_deps="gpl"

  3208. deshake_filter_select="pixelutils"

  3209. drawtext_filter_deps="libfreetype"

  3210. drawtext_filter_suggest="libfontconfig libfribidi"

  3211. elbg_filter_deps="avcodec"

  3212. eq_filter_deps="gpl"

  3213. fftfilt_filter_deps="avcodec"

  3214. fftfilt_filter_select="rdft"

  3215. find_rect_filter_deps="avcodec avformat gpl"

  3216. firequalizer_filter_deps="avcodec"

  3217. firequalizer_filter_select="rdft"

  3218. flite_filter_deps="libflite"

  3219. framerate_filter_select="pixelutils"

  3220. frei0r_filter_deps="frei0r libdl"

  3221. frei0r_src_filter_deps="frei0r libdl"

  3222. fspp_filter_deps="gpl"

  3223. geq_filter_deps="gpl"

  3224. histeq_filter_deps="gpl"

  3225. hqdn3d_filter_deps="gpl"

  3226. interlace_filter_deps="gpl"

  3227. kerndeint_filter_deps="gpl"

  3228. ladspa_filter_deps="ladspa libdl"

  3229. lv2_filter_deps="lv2"

  3230. mcdeint_filter_deps="avcodec gpl"

  3231. movie_filter_deps="avcodec avformat"

  3232. mpdecimate_filter_deps="gpl"

  3233. mpdecimate_filter_select="pixelutils"

  3234. mptestsrc_filter_deps="gpl"

  3235. negate_filter_deps="lut_filter"

  3236. nnedi_filter_deps="gpl"

  3237. ocr_filter_deps="libtesseract"

  3238. ocv_filter_deps="libopencv"

  3239. overlay_opencl_filter_deps="opencl"

  3240. overlay_qsv_filter_deps="libmfx"

  3241. overlay_qsv_filter_select="qsvvpp"

  3242. owdenoise_filter_deps="gpl"

  3243. pan_filter_deps="swresample"

  3244. perspective_filter_deps="gpl"

  3245. phase_filter_deps="gpl"

  3246. pp7_filter_deps="gpl"

  3247. pp_filter_deps="gpl postproc"

  3248. pullup_filter_deps="gpl"

  3249. removelogo_filter_deps="avcodec avformat swscale"

  3250. repeatfields_filter_deps="gpl"

  3251. resample_filter_deps="avresample"

  3252. rubberband_filter_deps="librubberband"

  3253. sab_filter_deps="gpl swscale"

  3254. scale2ref_filter_deps="swscale"

  3255. scale_filter_deps="swscale"

  3256. scale_qsv_filter_deps="libmfx"

  3257. select_filter_select="pixelutils"

  3258. showcqt_filter_deps="avcodec avformat swscale"

  3259. showcqt_filter_suggest="libfontconfig libfreetype"

  3260. showcqt_filter_select="fft"

  3261. showfreqs_filter_deps="avcodec"

  3262. showfreqs_filter_select="fft"

  3263. showspectrum_filter_deps="avcodec"

  3264. showspectrum_filter_select="fft"

  3265. showspectrumpic_filter_deps="avcodec"

  3266. showspectrumpic_filter_select="fft"

  3267. signature_filter_deps="gpl avcodec avformat"

  3268. smartblur_filter_deps="gpl swscale"

  3269. sofalizer_filter_deps="libmysofa avcodec"

  3270. sofalizer_filter_select="fft"

  3271. spectrumsynth_filter_deps="avcodec"

  3272. spectrumsynth_filter_select="fft"

  3273. spp_filter_deps="gpl avcodec"

  3274. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3275. stereo3d_filter_deps="gpl"

  3276. subtitles_filter_deps="avformat avcodec libass"

  3277. super2xsai_filter_deps="gpl"

  3278. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3279. tinterlace_filter_deps="gpl"

  3280. tinterlace_merge_test_deps="tinterlace_filter"

  3281. tinterlace_pad_test_deps="tinterlace_filter"

  3282. tonemap_filter_deps="const_nan"

  3283. unsharp_opencl_filter_deps="opencl"

  3284. uspp_filter_deps="gpl avcodec"

  3285. vaguedenoiser_filter_deps="gpl"

  3286. vidstabdetect_filter_deps="libvidstab"

  3287. vidstabtransform_filter_deps="libvidstab"

  3288. libvmaf_filter_deps="libvmaf pthreads"

  3289. zmq_filter_deps="libzmq"

  3290. zoompan_filter_deps="swscale"

  3291. zscale_filter_deps="libzimg const_nan"

  3292. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3293. vpp_qsv_filter_deps="libmfx"

  3294. vpp_qsv_filter_select="qsvvpp"

  3295. 

  3296. # examples

  3297. avio_dir_cmd_deps="avformat avutil"

  3298. avio_reading_deps="avformat avcodec avutil"

  3299. decode_audio_example_deps="avcodec avutil"

  3300. decode_video_example_deps="avcodec avutil"

  3301. demuxing_decoding_example_deps="avcodec avformat avutil"

  3302. encode_audio_example_deps="avcodec avutil"

  3303. encode_video_example_deps="avcodec avutil"

  3304. extract_mvs_example_deps="avcodec avformat avutil"

  3305. filter_audio_example_deps="avfilter avutil"

  3306. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3307. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3308. http_multiclient_example_deps="avformat avutil fork"

  3309. hw_decode_example_deps="avcodec avformat avutil"

  3310. metadata_example_deps="avformat avutil"

  3311. muxing_example_deps="avcodec avformat avutil swscale"

  3312. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3313. remuxing_example_deps="avcodec avformat avutil"

  3314. resampling_audio_example_deps="avutil swresample"

  3315. scaling_video_example_deps="avutil swscale"

  3316. transcode_aac_example_deps="avcodec avformat swresample"

  3317. transcoding_example_deps="avfilter avcodec avformat avutil"

  3318. vaapi_encode_example_deps="avcodec avutil"

  3319. 

  3320. # EXTRALIBS_LIST

  3321. cpu_init_extralibs="pthreads_extralibs"

  3322. cws2fws_extralibs="zlib_extralibs"

  3323. 

  3324. # libraries, in linking order

  3325. avcodec_deps="avutil"

  3326. avcodec_suggest="libm"

  3327. avcodec_select="null_bsf"

  3328. avdevice_deps="avformat avcodec avutil"

  3329. avdevice_suggest="libm"

  3330. avfilter_deps="avutil"

  3331. avfilter_suggest="libm"

  3332. avformat_deps="avcodec avutil"

  3333. avformat_suggest="libm network zlib"

  3334. avresample_deps="avutil"

  3335. avresample_suggest="libm"

  3336. avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3337. postproc_deps="avutil gpl"

  3338. postproc_suggest="libm"

  3339. swresample_deps="avutil"

  3340. swresample_suggest="libm libsoxr"

  3341. swscale_deps="avutil"

  3342. swscale_suggest="libm"

  3343. 

  3344. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3345. avfilter_extralibs="pthreads_extralibs"

  3346. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3347. 

  3348. # programs

  3349. ffmpeg_deps="avcodec avfilter avformat swresample"

  3350. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3351.                null_filter

  3352.                trim_filter"

  3353. ffmpeg_suggest="ole32 psapi shell32"

  3354. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3355. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3356. ffplay_suggest="shell32"

  3357. ffprobe_deps="avcodec avformat"

  3358. ffprobe_suggest="shell32"

  3359. 

  3360. # documentation

  3361. podpages_deps="perl"

  3362. manpages_deps="perl pod2man"

  3363. htmlpages_deps="perl"

  3364. htmlpages_deps_any="makeinfo_html texi2html"

  3365. txtpages_deps="perl makeinfo"

  3366. doc_deps_any="manpages htmlpages podpages txtpages"

  3367. 

  3368. # default parameters

  3369. 

  3370. logfile="ffbuild/config.log"

  3371. 

  3372. # installation paths

  3373. prefix_default="/usr/local"

  3374. bindir_default='${prefix}/bin'

  3375. datadir_default='${prefix}/share/ffmpeg'

  3376. docdir_default='${prefix}/share/doc/ffmpeg'

  3377. incdir_default='${prefix}/include'

  3378. libdir_default='${prefix}/lib'

  3379. mandir_default='${prefix}/share/man'

  3380. 

  3381. # toolchain

  3382. ar_default="ar"

  3383. cc_default="gcc"

  3384. cxx_default="g++"

  3385. host_cc_default="gcc"

  3386. doxygen_default="doxygen"

  3387. install="install"

  3388. ln_s_default="ln -s -f"

  3389. nm_default="nm -g"

  3390. pkg_config_default=pkg-config

  3391. ranlib_default="ranlib"

  3392. strip_default="strip"

  3393. version_script='--version-script'

  3394. objformat="elf32"

  3395. x86asmexe_default="nasm"

  3396. windres_default="windres"

  3397. nvcc_default="nvcc"

  3398. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3399. striptype="direct"

  3400. 

  3401. # OS

  3402. target_os_default=$(tolower $(uname -s))

  3403. host_os=$target_os_default

  3404. 

  3405. # machine

  3406. if test "$target_os_default" = aix; then

  3407.     arch_default=$(uname -p)

  3408.     strip_default="strip -X32_64"

  3409. else

  3410.     arch_default=$(uname -m)

  3411. fi

  3412. cpu="generic"

  3413. intrinsics="none"

  3414. 

  3415. # configurable options

  3416. enable $PROGRAM_LIST

  3417. enable $DOCUMENT_LIST

  3418. enable $EXAMPLE_LIST

  3419. enable $(filter_out avresample $LIBRARY_LIST)

  3420. enable stripping

  3421. 

  3422. enable asm

  3423. enable debug

  3424. enable doc

  3425. enable faan faandct faanidct

  3426. enable optimizations

  3427. enable runtime_cpudetect

  3428. enable safe_bitstream_reader

  3429. enable static

  3430. enable swscale_alpha

  3431. enable valgrind_backtrace

  3432. 

  3433. sws_max_filter_size_default=256

  3434. set_default sws_max_filter_size

  3435. 

  3436. # internal components are enabled by default

  3437. enable $EXTRALIBS_LIST

  3438. 

  3439. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3440. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3441. 

  3442. # build settings

  3443. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3444. LIBPREF="lib"

  3445. LIBSUF=".a"

  3446. FULLNAME='$(NAME)$(BUILDSUF)'

  3447. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3448. SLIBPREF="lib"

  3449. SLIBSUF=".so"

  3450. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3451. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3452. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3453. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3454. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3455. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3456. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3457. 

  3458. asflags_filter=echo

  3459. cflags_filter=echo

  3460. ldflags_filter=echo

  3461. 

  3462. AS_C='-c'

  3463. AS_O='-o $@'

  3464. CC_C='-c'

  3465. CC_E='-E -o $@'

  3466. CC_O='-o $@'

  3467. CXX_C='-c'

  3468. CXX_O='-o $@'

  3469. OBJCC_C='-c'

  3470. OBJCC_E='-E -o $@'

  3471. OBJCC_O='-o $@'

  3472. X86ASM_O='-o $@'

  3473. LD_O='-o $@'

  3474. LD_LIB='-l%'

  3475. LD_PATH='-L'

  3476. HOSTCC_C='-c'

  3477. HOSTCC_E='-E -o $@'

  3478. HOSTCC_O='-o $@'

  3479. HOSTLD_O='-o $@'

  3480. NVCC_C='-c'

  3481. NVCC_O='-o $@'

  3482. 

  3483. host_extralibs='-lm'

  3484. host_cflags_filter=echo

  3485. host_ldflags_filter=echo

  3486. 

  3487. target_path='$(CURDIR)'

  3488. 

  3489. # since the object filename is not given with the -MM flag, the compiler

  3490. # is only able to print the basename, and we must add the path ourselves

  3491. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3492. DEPFLAGS='-MM'

  3493. 

  3494. mkdir -p ffbuild

  3495. 

  3496. # find source path

  3497. if test -f configure; then

  3498.     source_path=.

  3499. else

  3500.     source_path=$(cd $(dirname "$0"); pwd)

  3501.     case "$source_path" in

  3502.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3503.     esac

  3504.     test -e "$source_path/config.h" &&

  3505.         die "Out of tree builds are impossible with config.h in source dir."

  3506. fi

  3507. 

  3508. for v in "$@"; do

  3509.     r=${v#*=}

  3510.     l=${v%"$r"}

  3511.     r=$(sh_quote "$r")

  3512.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3513. done

  3514. 

  3515. find_things(){

  3516.     thing=$1

  3517.     pattern=$2

  3518.     file=$source_path/$3

  3519.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3520. }

  3521. 

  3522. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3523. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3524. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3525. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3526. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3527. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3528. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3529. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3530. 

  3531. find_things_extern(){

  3532.     thing=$1

  3533.     pattern=$2

  3534.     file=$source_path/$3

  3535.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3536. }

  3537. 

  3538. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3539. HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)

  3540. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3541. 

  3542. AVCODEC_COMPONENTS_LIST="

  3543.     $BSF_LIST

  3544.     $DECODER_LIST

  3545.     $ENCODER_LIST

  3546.     $HWACCEL_LIST

  3547.     $PARSER_LIST

  3548. "

  3549. 

  3550. AVDEVICE_COMPONENTS_LIST="

  3551.     $INDEV_LIST

  3552.     $OUTDEV_LIST

  3553. "

  3554. 

  3555. AVFILTER_COMPONENTS_LIST="

  3556.     $FILTER_LIST

  3557. "

  3558. 

  3559. AVFORMAT_COMPONENTS_LIST="

  3560.     $DEMUXER_LIST

  3561.     $MUXER_LIST

  3562.     $PROTOCOL_LIST

  3563. "

  3564. 

  3565. ALL_COMPONENTS="

  3566.     $AVCODEC_COMPONENTS_LIST

  3567.     $AVDEVICE_COMPONENTS_LIST

  3568.     $AVFILTER_COMPONENTS_LIST

  3569.     $AVFORMAT_COMPONENTS_LIST

  3570. "

  3571. 

  3572. for n in $COMPONENT_LIST; do

  3573.     v=$(toupper ${n%s})_LIST

  3574.     eval enable \$$v

  3575.     eval ${n}_if_any="\$$v"

  3576. done

  3577. 

  3578. enable $ARCH_EXT_LIST

  3579. 

  3580. die_unknown(){

  3581.     echo "Unknown option \"$1\"."

  3582.     echo "See $0 --help for available options."

  3583.     exit 1

  3584. }

  3585. 

  3586. print_in_columns() {

  3587.     cols=$(expr $ncols / 24)

  3588.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3589. }

  3590. 

  3591. show_list() {

  3592.     suffix=_$1

  3593.     shift

  3594.     echo $* | sed s/$suffix//g | print_in_columns

  3595.     exit 0

  3596. }

  3597. 

  3598. rand_list(){

  3599.     IFS=', '

  3600.     set -- $*

  3601.     unset IFS

  3602.     for thing; do

  3603.         comp=${thing%:*}

  3604.         prob=${thing#$comp}

  3605.         prob=${prob#:}

  3606.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3607.         echo "prob ${prob:-0.5}"

  3608.         printf '%s\n' $comp

  3609.     done

  3610. }

  3611. 

  3612. do_random(){

  3613.     action=$1

  3614.     shift

  3615.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3616.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3617. }

  3618. 

  3619. for opt do

  3620.     optval="${opt#*=}"

  3621.     case "$opt" in

  3622.         --extra-ldflags=*)

  3623.             add_ldflags $optval

  3624.         ;;

  3625.         --extra-ldexeflags=*)

  3626.             add_ldexeflags $optval

  3627.         ;;

  3628.         --extra-ldsoflags=*)

  3629.             add_ldsoflags $optval

  3630.         ;;

  3631.         --extra-ldlibflags=*)

  3632.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3633.                  "removed in the future. Use --extra-ldsoflags instead."

  3634.             add_ldsoflags $optval

  3635.         ;;

  3636.         --extra-libs=*)

  3637.             add_extralibs $optval

  3638.         ;;

  3639.         --disable-devices)

  3640.             disable $INDEV_LIST $OUTDEV_LIST

  3641.         ;;

  3642.         --enable-debug=*)

  3643.             debuglevel="$optval"

  3644.         ;;

  3645.         --disable-programs)

  3646.             disable $PROGRAM_LIST

  3647.         ;;

  3648.         --disable-everything)

  3649.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3650.         ;;

  3651.         --disable-all)

  3652.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3653.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3654.             enable avutil

  3655.         ;;

  3656.         --enable-random|--disable-random)

  3657.             action=${opt%%-random}

  3658.             do_random ${action#--} $COMPONENT_LIST

  3659.         ;;

  3660.         --enable-random=*|--disable-random=*)

  3661.             action=${opt%%-random=*}

  3662.             do_random ${action#--} $optval

  3663.         ;;

  3664.         --enable-sdl)

  3665.             enable sdl2

  3666.         ;;

  3667.         --enable-*=*|--disable-*=*)

  3668.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3669.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3670.             eval list=\$$(toupper $thing)_LIST

  3671.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3672.             list=$(filter "$name" $list)

  3673.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3674.             $action $list

  3675.         ;;

  3676.         --enable-yasm|--disable-yasm)

  3677.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3678.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3679.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3680.         ;;

  3681.         --yasmexe=*)

  3682.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3683.                  "removed in the future. Use --x86asmexe instead."

  3684.             x86asmexe="$optval"

  3685.         ;;

  3686.         --enable-?*|--disable-?*)

  3687.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3688.             if is_in $option $COMPONENT_LIST; then

  3689.                 test $action = disable && action=unset

  3690.                 eval $action \$$(toupper ${option%s})_LIST

  3691.             elif is_in $option $CMDLINE_SELECT; then

  3692.                 $action $option

  3693.             else

  3694.                 die_unknown $opt

  3695.             fi

  3696.         ;;

  3697.         --list-*)

  3698.             NAME="${opt#--list-}"

  3699.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3700.             NAME=${NAME%s}

  3701.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3702.         ;;

  3703.         --help|-h) show_help

  3704.         ;;

  3705.         --quiet|-q) quiet=yes

  3706.         ;;

  3707.         --fatal-warnings) enable fatal_warnings

  3708.         ;;

  3709.         --libfuzzer=*)

  3710.             libfuzzer_path="$optval"

  3711.         ;;

  3712.         *)

  3713.             optname="${opt%%=*}"

  3714.             optname="${optname#--}"

  3715.             optname=$(echo "$optname" | sed 's/-/_/g')

  3716.             if is_in $optname $CMDLINE_SET; then

  3717.                 eval $optname='$optval'

  3718.             elif is_in $optname $CMDLINE_APPEND; then

  3719.                 append $optname "$optval"

  3720.             else

  3721.                 die_unknown $opt

  3722.             fi

  3723.         ;;

  3724.     esac

  3725. done

  3726. 

  3727. for e in $env; do

  3728.     eval "export $e"

  3729. done

  3730. 

  3731. if disabled autodetect; then

  3732. 

  3733.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3734.     # for the iconv from the libc.

  3735.     disabled iconv || enable libc_iconv

  3736. 

  3737.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3738.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3739. fi

  3740. # Mark specifically enabled, but normally autodetected libraries as requested.

  3741. for lib in $AUTODETECT_LIBS; do

  3742.     enabled $lib && request $lib

  3743. done

  3744. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3745. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3746. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3747. 

  3748. disabled logging && logfile=/dev/null

  3749. 

  3750. # command line configuration sanity checks

  3751. 

  3752. # we need to build at least one lib type

  3753. if ! enabled_any static shared; then

  3754.     cat <<EOF

  3755. At least one library type must be built.

  3756. Specify --enable-static to build the static libraries or --enable-shared to

  3757. build the shared libraries as well. To only build the shared libraries specify

  3758. --disable-static in addition to --enable-shared.

  3759. EOF

  3760.     exit 1

  3761. fi

  3762. 

  3763. die_license_disabled() {

  3764.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3765. }

  3766. 

  3767. die_license_disabled_gpl() {

  3768.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3769. }

  3770. 

  3771. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3772. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3773. 

  3774. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3775. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3776. 

  3777. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3778. 

  3779. enabled_all gnutls openssl &&

  3780.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3781. 

  3782. # Disable all the library-specific components if the library itself

  3783. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3784. 

  3785. disable_components(){

  3786.     disabled ${1} && disable $(

  3787.         eval components="\$$(toupper ${1})_COMPONENTS"

  3788.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3789.     )

  3790. }

  3791. 

  3792. map 'disable_components $v' $LIBRARY_LIST

  3793. 

  3794. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3795. set >> $logfile

  3796. 

  3797. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3798. 

  3799. enabled ossfuzz && {

  3800.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3801.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3802. }

  3803. 

  3804. case "$toolchain" in

  3805.     *-asan)

  3806.         cc_default="${toolchain%-asan}"

  3807.         add_cflags  -fsanitize=address

  3808.         add_ldflags -fsanitize=address

  3809.     ;;

  3810.     *-msan)

  3811.         cc_default="${toolchain%-msan}"

  3812.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3813.         add_ldflags -fsanitize=memory

  3814.     ;;

  3815.     *-tsan)

  3816.         cc_default="${toolchain%-tsan}"

  3817.         add_cflags  -fsanitize=thread -fPIE

  3818.         add_ldflags -fsanitize=thread -pie

  3819.         case "$toolchain" in

  3820.             gcc-tsan)

  3821.                 add_cflags  -fPIC

  3822.                 add_ldflags -fPIC

  3823.                 ;;

  3824.         esac

  3825.     ;;

  3826.     *-usan)

  3827.         cc_default="${toolchain%-usan}"

  3828.         add_cflags  -fsanitize=undefined

  3829.         add_ldflags -fsanitize=undefined

  3830.     ;;

  3831.     valgrind-*)

  3832.         target_exec_default="valgrind"

  3833.         case "$toolchain" in

  3834.             valgrind-massif)

  3835.                 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"

  3836.                 ;;

  3837.             valgrind-memcheck)

  3838.                 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"

  3839.                 ;;

  3840.         esac

  3841.     ;;

  3842.     msvc)

  3843.         # Check whether the current MSVC version needs the C99 converter.

  3844.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3845.         # support enough of C99 to build ffmpeg. Default to the new

  3846.         # behaviour if the regexp was unable to match anything, since this

  3847.         # successfully parses the version number of existing supported

  3848.         # versions that require the converter (MSVC 2010 and 2012).

  3849.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3850.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3851.             cc_default="cl"

  3852.             cxx_default="cl"

  3853.         else

  3854.             cc_default="c99wrap cl"

  3855.             cxx_default="c99wrap cl"

  3856.         fi

  3857.         ld_default="$source_path/compat/windows/mslink"

  3858.         nm_default="dumpbin -symbols"

  3859.         ar_default="lib"

  3860.         case "$arch" in

  3861.         aarch64|arm64)

  3862.             as_default="armasm64"

  3863.             ;;

  3864.         arm*)

  3865.             as_default="armasm"

  3866.             ;;

  3867.         esac

  3868.         target_os_default="win32"

  3869.         # Use a relative path for TMPDIR. This makes sure all the

  3870.         # ffconf temp files are written with a relative path, avoiding

  3871.         # issues with msys/win32 path conversion for MSVC parameters

  3872.         # such as -Fo<file> or -out:<file>.

  3873.         TMPDIR=.

  3874.     ;;

  3875.     icl)

  3876.         cc_default="icl"

  3877.         ld_default="xilink"

  3878.         nm_default="dumpbin -symbols"

  3879.         ar_default="xilib"

  3880.         target_os_default="win32"

  3881.         TMPDIR=.

  3882.     ;;

  3883.     gcov)

  3884.         add_cflags  -fprofile-arcs -ftest-coverage

  3885.         add_ldflags -fprofile-arcs -ftest-coverage

  3886.     ;;

  3887.     llvm-cov)

  3888.         add_cflags -fprofile-arcs -ftest-coverage

  3889.         add_ldflags --coverage

  3890.     ;;

  3891.     hardened)

  3892.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3893.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3894.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3895.         add_cflags   -fPIE

  3896.         add_ldexeflags -fPIE -pie

  3897.     ;;

  3898.     ?*)

  3899.         die "Unknown toolchain $toolchain"

  3900.     ;;

  3901. esac

  3902. 

  3903. if test -n "$cross_prefix"; then

  3904.     test -n "$arch" && test -n "$target_os" ||

  3905.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3906.     enable cross_compile

  3907. fi

  3908. 

  3909. ar_default="${cross_prefix}${ar_default}"

  3910. cc_default="${cross_prefix}${cc_default}"

  3911. cxx_default="${cross_prefix}${cxx_default}"

  3912. nm_default="${cross_prefix}${nm_default}"

  3913. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3914. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3915.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3916. else

  3917.     ranlib_default="${cross_prefix}${ranlib_default}"

  3918. fi

  3919. strip_default="${cross_prefix}${strip_default}"

  3920. windres_default="${cross_prefix}${windres_default}"

  3921. 

  3922. sysinclude_default="${sysroot}/usr/include"

  3923. 

  3924. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3925.     target_exec target_os x86asmexe nvcc

  3926. enabled cross_compile || host_cc_default=$cc

  3927. set_default host_cc

  3928. 

  3929. pkg_config_fail_message=""

  3930. if ! $pkg_config --version >/dev/null 2>&1; then

  3931.     warn "$pkg_config not found, library detection may fail."

  3932.     pkg_config=false

  3933. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3934.     pkg_config_fail_message="

  3935. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3936. fi

  3937. 

  3938. if test $doxygen != $doxygen_default && \

  3939.   ! $doxygen --version >/dev/null 2>&1; then

  3940.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3941. fi

  3942. 

  3943. exesuf() {

  3944.     case $1 in

  3945.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3946.     esac

  3947. }

  3948. 

  3949. EXESUF=$(exesuf $target_os)

  3950. HOSTEXESUF=$(exesuf $host_os)

  3951. 

  3952. # set temporary file name

  3953. : ${TMPDIR:=$TEMPDIR}

  3954. : ${TMPDIR:=$TMP}

  3955. : ${TMPDIR:=/tmp}

  3956. 

  3957. if [ -n "$tempprefix" ] ; then

  3958.     mktemp(){

  3959.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3960.         echo "$tmpname"

  3961.         mkdir "$tmpname"

  3962.     }

  3963. elif ! check_cmd mktemp -u XXXXXX; then

  3964.     # simple replacement for missing mktemp

  3965.     # NOT SAFE FOR GENERAL USE

  3966.     mktemp(){

  3967.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3968.         echo "$tmpname"

  3969.         mkdir "$tmpname"

  3970.     }

  3971. fi

  3972. 

  3973. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3974.     die "Unable to create temporary directory in $TMPDIR."

  3975. 

  3976. tmpfile(){

  3977.     tmp="${FFTMPDIR}/test"$2

  3978.     (set -C; exec > $tmp) 2> /dev/null ||

  3979.         die "Unable to create temporary file in $FFTMPDIR."

  3980.     eval $1=$tmp

  3981. }

  3982. 

  3983. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3984. trap 'exit 2' INT

  3985. 

  3986. tmpfile TMPASM .asm

  3987. tmpfile TMPC   .c

  3988. tmpfile TMPCPP .cpp

  3989. tmpfile TMPE   $EXESUF

  3990. tmpfile TMPH   .h

  3991. tmpfile TMPM   .m

  3992. tmpfile TMPO   .o

  3993. tmpfile TMPS   .S

  3994. tmpfile TMPSH  .sh

  3995. tmpfile TMPV   .ver

  3996. 

  3997. unset -f mktemp

  3998. 

  3999. chmod +x $TMPE

  4000. 

  4001. # make sure we can execute files in $TMPDIR

  4002. cat > $TMPSH 2>> $logfile <<EOF

  4003. #! /bin/sh

  4004. EOF

  4005. chmod +x $TMPSH >> $logfile 2>&1

  4006. if ! $TMPSH >> $logfile 2>&1; then

  4007.     cat <<EOF

  4008. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4009. variable to another directory and make sure that it is not mounted noexec.

  4010. EOF

  4011.     die "Sanity test failed."

  4012. fi

  4013. 

  4014. armasm_flags(){

  4015.     for flag; do

  4016.         case $flag in

  4017.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4018.             # be passed to gas-preprocessor

  4019.             -M[TD]*)                                            ;;

  4020.             *)                  echo $flag                      ;;

  4021.         esac

  4022.    done

  4023. }

  4024. 

  4025. cparser_flags(){

  4026.     for flag; do

  4027.         case $flag in

  4028.             -Wno-switch)             echo -Wno-switch-enum ;;

  4029.             -Wno-format-zero-length) ;;

  4030.             -Wdisabled-optimization) ;;

  4031.             -Wno-pointer-sign)       echo -Wno-other ;;

  4032.             *)                       echo $flag ;;

  4033.         esac

  4034.     done

  4035. }

  4036. 

  4037. msvc_common_flags(){

  4038.     for flag; do

  4039.         case $flag in

  4040.             # In addition to specifying certain flags under the compiler

  4041.             # specific filters, they must be specified here as well or else the

  4042.             # generic catch all at the bottom will print the original flag.

  4043.             -Wall)                ;;

  4044.             -Wextra)              ;;

  4045.             -std=c99)             ;;

  4046.             # Common flags

  4047.             -fomit-frame-pointer) ;;

  4048.             -g)                   echo -Z7 ;;

  4049.             -fno-math-errno)      ;;

  4050.             -fno-common)          ;;

  4051.             -fno-signed-zeros)    ;;

  4052.             -fPIC)                ;;

  4053.             -mthumb)              ;;

  4054.             -march=*)             ;;

  4055.             -lz)                  echo zlib.lib ;;

  4056.             -lx264)               echo libx264.lib ;;

  4057.             -lstdc++)             ;;

  4058.             -l*)                  echo ${flag#-l}.lib ;;

  4059.             -LARGEADDRESSAWARE)   echo $flag ;;

  4060.             -L*)                  echo -libpath:${flag#-L} ;;

  4061.             *)                    echo $flag ;;

  4062.         esac

  4063.     done

  4064. }

  4065. 

  4066. msvc_flags(){

  4067.     msvc_common_flags "$@"

  4068.     for flag; do

  4069.         case $flag in

  4070.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4071.                                        -wd4554 ;;

  4072.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4073.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4074.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4075.                                        -wd4307 \

  4076.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4077.         esac

  4078.     done

  4079. }

  4080. 

  4081. icl_flags(){

  4082.     msvc_common_flags "$@"

  4083.     for flag; do

  4084.         case $flag in

  4085.             # Despite what Intel's documentation says -Wall, which is supported

  4086.             # on Windows, does enable remarks so disable them here.

  4087.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4088.             -std=c99)             echo -Qstd=c99 ;;

  4089.             -flto)                echo -ipo ;;

  4090.         esac

  4091.     done

  4092. }

  4093. 

  4094. icc_flags(){

  4095.     for flag; do

  4096.         case $flag in

  4097.             -flto)                echo -ipo ;;

  4098.             *)                    echo $flag ;;

  4099.         esac

  4100.     done

  4101. }

  4102. 

  4103. suncc_flags(){

  4104.     for flag; do

  4105.         case $flag in

  4106.             -march=*|-mcpu=*)

  4107.                 case "${flag#*=}" in

  4108.                     native)                   echo -xtarget=native       ;;

  4109.                     v9|niagara)               echo -xarch=sparc          ;;

  4110.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4111.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4112.                     i586|pentium)             echo -xchip=pentium        ;;

  4113.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4114.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4115.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4116.                     pentium4*)          echo -xtarget=pentium4           ;;

  4117.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4118.                     *-sse3)             echo -xarch=sse3                 ;;

  4119.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4120.                     bonnell)                   echo -xarch=ssse3         ;;

  4121.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4122.                     westmere)                  echo -xtarget=westmere    ;;

  4123.                     silvermont)                echo -xarch=sse4_2        ;;

  4124.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4125.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4126.                                                echo -xarch=avx           ;;

  4127.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4128.                     btver1)                    echo -xarch=amdsse4a      ;;

  4129.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4130.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4131.                     k8|opteron|athlon64|athlon-fx)

  4132.                                                echo -xarch=sse2a         ;;

  4133.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4134.                 esac

  4135.                 ;;

  4136.             -std=c99)             echo -xc99              ;;

  4137.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4138.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4139.             -W*,*)                echo $flag              ;;

  4140.             -f*-*|-W*|-mimpure-text)                      ;;

  4141.             -shared)              echo -G                 ;;

  4142.             *)                    echo $flag              ;;

  4143.         esac

  4144.     done

  4145. }

  4146. 

  4147. probe_cc(){

  4148.     pfx=$1

  4149.     _cc=$2

  4150.     first=$3

  4151. 

  4152.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4153.     unset _ld_o _ldflags _ld_lib _ld_path

  4154.     unset _depflags _DEPCMD _DEPFLAGS

  4155.     _flags_filter=echo

  4156. 

  4157.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4158.         true # no-op to avoid reading stdin in following checks

  4159.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4160.         _type=llvm_gcc

  4161.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4162.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4163.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4164.         _cflags_speed='-O3'

  4165.         _cflags_size='-Os'

  4166.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4167.         _type=gcc

  4168.         gcc_version=$($_cc --version | head -n1)

  4169.         gcc_basever=$($_cc -dumpversion)

  4170.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4171.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4172.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4173.         case $gcc_basever in

  4174.             2) ;;

  4175.             2.*) ;;

  4176.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4177.         esac

  4178.         if [ "$first" = true ]; then

  4179.             case $gcc_basever in

  4180.                 4.2*)

  4181.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4182.             esac

  4183.         fi

  4184.         _cflags_speed='-O3'

  4185.         _cflags_size='-Os'

  4186.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4187.         _type=icc

  4188.         _ident=$($_cc --version | head -n1)

  4189.         _depflags='-MMD'

  4190.         _cflags_speed='-O3'

  4191.         _cflags_size='-Os'

  4192.         _cflags_noopt='-O1'

  4193.         _flags_filter=icc_flags

  4194.     elif $_cc -v 2>&1 | grep -q xlc; then

  4195.         _type=xlc

  4196.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4197.         _cflags_speed='-O5'

  4198.         _cflags_size='-O5 -qcompact'

  4199.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4200.         test -d "$sysroot" || die "No valid sysroot specified."

  4201.         _type=armcc

  4202.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4203.         armcc_conf="$PWD/armcc.conf"

  4204.         $_cc --arm_linux_configure                 \

  4205.              --arm_linux_config_file="$armcc_conf" \

  4206.              --configure_sysroot="$sysroot"        \

  4207.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4208.              die "Error creating armcc configuration file."

  4209.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4210.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4211.         as_default="${cross_prefix}gcc"

  4212.         _depflags='-MMD'

  4213.         _cflags_speed='-O3'

  4214.         _cflags_size='-Os'

  4215.     elif $_cc -v 2>&1 | grep -q clang; then

  4216.         _type=clang

  4217.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4218.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4219.         _cflags_speed='-O3'

  4220.         _cflags_size='-Oz'

  4221.     elif $_cc -V 2>&1 | grep -q Sun; then

  4222.         _type=suncc

  4223.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4224.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4225.         _DEPFLAGS='-xM1 -xc99'

  4226.         _ldflags='-std=c99'

  4227.         _cflags_speed='-O5'

  4228.         _cflags_size='-O5 -xspace'

  4229.         _flags_filter=suncc_flags

  4230.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4231.         _type=pathscale

  4232.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4233.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4234.         _cflags_speed='-O2'

  4235.         _cflags_size='-Os'

  4236.         _flags_filter='filter_out -Wdisabled-optimization'

  4237.     elif $_cc -v 2>&1 | grep -q Open64; then

  4238.         _type=open64

  4239.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4240.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4241.         _cflags_speed='-O2'

  4242.         _cflags_size='-Os'

  4243.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4244.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4245.         _type=armasm

  4246.         _ident=$($_cc | head -n1)

  4247.         # 4509: "This form of conditional instruction is deprecated"

  4248.         _flags="-nologo -ignore 4509"

  4249.         _flags_filter=armasm_flags

  4250.     elif $_cc 2>&1 | grep -q Intel; then

  4251.         _type=icl

  4252.         _ident=$($_cc 2>&1 | head -n1)

  4253.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4254.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4255.         # versions (tested) as well.

  4256.         _cflags_speed="-O2"

  4257.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4258.         if $_cc 2>&1 | grep -q Linker; then

  4259.             _ld_o='-out:$@'

  4260.         else

  4261.             _ld_o='-Fe$@'

  4262.         fi

  4263.         _cc_o='-Fo$@'

  4264.         _cc_e='-P'

  4265.         _flags_filter=icl_flags

  4266.         _ld_lib='lib%.a'

  4267.         _ld_path='-libpath:'

  4268.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4269.         _flags='-nologo -Qdiag-error:4044,10157'

  4270.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4271.         # with MSVC which enables it by default.

  4272.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4273.         disable stripping

  4274.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4275.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4276.         # the -? parameter gives the help output which contains an identifyable

  4277.         # string, while it gives an error in other modes.

  4278.         _type=lld-link

  4279.         # The link.exe mode doesn't have a switch for getting the version,

  4280.         # but we can force it back to gnu mode and get the version from there.

  4281.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4282.         _ld_o='-out:$@'

  4283.         _flags_filter=msvc_flags

  4284.         _ld_lib='lib%.a'

  4285.         _ld_path='-libpath:'

  4286.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4287.         _type=msvc

  4288.         _ident=$($_cc 2>&1 | head -n1)

  4289.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4290.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4291.         _cflags_speed="-O2"

  4292.         _cflags_size="-O1"

  4293.         _cflags_noopt="-O1"

  4294.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4295.             _ld_o='-out:$@'

  4296.         else

  4297.             _ld_o='-Fe$@'

  4298.         fi

  4299.         _cc_o='-Fo$@'

  4300.         _cc_e='-P -Fi$@'

  4301.         _flags_filter=msvc_flags

  4302.         _ld_lib='lib%.a'

  4303.         _ld_path='-libpath:'

  4304.         _flags='-nologo'

  4305.         disable stripping

  4306.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4307.         _type=cparser

  4308.         _ident=$($_cc --version | head -n1)

  4309.         _depflags='-MMD'

  4310.         _cflags_speed='-O4'

  4311.         _cflags_size='-O2'

  4312.         _flags_filter=cparser_flags

  4313.     fi

  4314. 

  4315.     eval ${pfx}_type=\$_type

  4316.     eval ${pfx}_ident=\$_ident

  4317. }

  4318. 

  4319. set_ccvars(){

  4320.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4321.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4322.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4323. 

  4324.     if [ -n "$_depflags" ]; then

  4325.         eval ${1}_DEPFLAGS=\$_depflags

  4326.     else

  4327.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4328.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4329.         eval DEP${1}FLAGS=\$_flags

  4330.     fi

  4331. }

  4332. 

  4333. probe_cc cc "$cc" "true"

  4334. cflags_filter=$_flags_filter

  4335. cflags_speed=$_cflags_speed

  4336. cflags_size=$_cflags_size

  4337. cflags_noopt=$_cflags_noopt

  4338. add_cflags $_flags $_cflags

  4339. cc_ldflags=$_ldflags

  4340. set_ccvars CC

  4341. set_ccvars CXX

  4342. 

  4343. probe_cc hostcc "$host_cc"

  4344. host_cflags_filter=$_flags_filter

  4345. host_cflags_speed=$_cflags_speed

  4346. add_host_cflags  $_flags $_cflags

  4347. set_ccvars HOSTCC

  4348. 

  4349. test -n "$cc_type" && enable $cc_type ||

  4350.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4351. 

  4352. : ${as_default:=$cc}

  4353. : ${objcc_default:=$cc}

  4354. : ${dep_cc_default:=$cc}

  4355. : ${ld_default:=$cc}

  4356. : ${host_ld_default:=$host_cc}

  4357. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4358. 

  4359. probe_cc as "$as"

  4360. asflags_filter=$_flags_filter

  4361. add_asflags $_flags $_cflags

  4362. set_ccvars AS

  4363. 

  4364. probe_cc objcc "$objcc"

  4365. objcflags_filter=$_flags_filter

  4366. add_objcflags $_flags $_cflags

  4367. set_ccvars OBJC

  4368. 

  4369. probe_cc ld "$ld"

  4370. ldflags_filter=$_flags_filter

  4371. add_ldflags $_flags $_ldflags

  4372. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4373. LD_O=${_ld_o-$LD_O}

  4374. LD_LIB=${_ld_lib-$LD_LIB}

  4375. LD_PATH=${_ld_path-$LD_PATH}

  4376. 

  4377. probe_cc hostld "$host_ld"

  4378. host_ldflags_filter=$_flags_filter

  4379. add_host_ldflags $_flags $_ldflags

  4380. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4381. 

  4382. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4383.     probe_cc depcc "$dep_cc"

  4384.     CCDEP=${_DEPCMD:-$DEPCMD}

  4385.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4386.     DEPCCFLAGS=$_flags

  4387. fi

  4388. 

  4389. if $ar 2>&1 | grep -q Microsoft; then

  4390.     arflags="-nologo"

  4391.     ar_o='-out:$@'

  4392. elif $ar 2>&1 | grep -q "\[D\] "; then

  4393.     arflags="rcD"

  4394.     ar_o='$@'

  4395. else

  4396.     arflags="rc"

  4397.     ar_o='$@'

  4398. fi

  4399. 

  4400. add_cflags $extra_cflags

  4401. add_cxxflags $extra_cxxflags

  4402. add_objcflags $extra_objcflags

  4403. add_asflags $extra_cflags

  4404. 

  4405. if test -n "$sysroot"; then

  4406.     case "$cc_type" in

  4407.         gcc|llvm_gcc|clang)

  4408.             add_cppflags --sysroot="$sysroot"

  4409.             add_ldflags --sysroot="$sysroot"

  4410.         ;;

  4411.     esac

  4412. fi

  4413. 

  4414. if test "$cpu" = host; then

  4415.     enabled cross_compile &&

  4416.         die "--cpu=host makes no sense when cross-compiling."

  4417. 

  4418.     case "$cc_type" in

  4419.         gcc|llvm_gcc)

  4420.             check_native(){

  4421.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4422.                 sed -n "/cc1.*$1=/{

  4423.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4424.                             p

  4425.                             q

  4426.                         }" $TMPE

  4427.             }

  4428.             cpu=$(check_native -march || check_native -mcpu)

  4429.         ;;

  4430.         clang)

  4431.             check_native(){

  4432.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4433.                 sed -n "/cc1.*-target-cpu /{

  4434.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4435.                             p

  4436.                             q

  4437.                         }" $TMPE

  4438.             }

  4439.             cpu=$(check_native -march)

  4440.         ;;

  4441.     esac

  4442. 

  4443.     test "${cpu:-host}" = host &&

  4444.         die "--cpu=host not supported with compiler $cc"

  4445. fi

  4446. 

  4447. # Deal with common $arch aliases

  4448. case "$arch" in

  4449.     aarch64|arm64)

  4450.         arch="aarch64"

  4451.     ;;

  4452.     arm*|iPad*|iPhone*)

  4453.         arch="arm"

  4454.     ;;

  4455.     mips*|IP*)

  4456.         case "$arch" in

  4457.         *el)

  4458.             add_cppflags -EL

  4459.             add_ldflags -EL

  4460.         ;;

  4461.         *eb)

  4462.             add_cppflags -EB

  4463.             add_ldflags -EB

  4464.         ;;

  4465.         esac

  4466.         arch="mips"

  4467.     ;;

  4468.     parisc*|hppa*)

  4469.         arch="parisc"

  4470.     ;;

  4471.     "Power Macintosh"|ppc*|powerpc*)

  4472.         arch="ppc"

  4473.     ;;

  4474.     s390|s390x)

  4475.         arch="s390"

  4476.     ;;

  4477.     sh4|sh)

  4478.         arch="sh4"

  4479.     ;;

  4480.     sun4*|sparc*)

  4481.         arch="sparc"

  4482.     ;;

  4483.     tilegx|tile-gx)

  4484.         arch="tilegx"

  4485.     ;;

  4486.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4487.         arch="x86"

  4488.     ;;

  4489. esac

  4490. 

  4491. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4492. enable $arch

  4493. 

  4494. # Add processor-specific flags

  4495. if enabled aarch64; then

  4496. 

  4497.     case $cpu in

  4498.         armv*)

  4499.             cpuflags="-march=$cpu"

  4500.         ;;

  4501.         *)

  4502.             cpuflags="-mcpu=$cpu"

  4503.         ;;

  4504.     esac

  4505. 

  4506. elif enabled alpha; then

  4507. 

  4508.     cpuflags="-mcpu=$cpu"

  4509. 

  4510. elif enabled arm; then

  4511. 

  4512.     check_arm_arch() {

  4513.         check_cpp_condition stddef.h \

  4514.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4515.             $cpuflags

  4516.     }

  4517. 

  4518.     probe_arm_arch() {

  4519.         if   check_arm_arch 4;        then echo armv4

  4520.         elif check_arm_arch 4T;       then echo armv4t

  4521.         elif check_arm_arch 5;        then echo armv5

  4522.         elif check_arm_arch 5E;       then echo armv5e

  4523.         elif check_arm_arch 5T;       then echo armv5t

  4524.         elif check_arm_arch 5TE;      then echo armv5te

  4525.         elif check_arm_arch 5TEJ;     then echo armv5te

  4526.         elif check_arm_arch 6;        then echo armv6

  4527.         elif check_arm_arch 6J;       then echo armv6j

  4528.         elif check_arm_arch 6K;       then echo armv6k

  4529.         elif check_arm_arch 6Z;       then echo armv6z

  4530.         elif check_arm_arch 6KZ;      then echo armv6zk

  4531.         elif check_arm_arch 6ZK;      then echo armv6zk

  4532.         elif check_arm_arch 6T2;      then echo armv6t2

  4533.         elif check_arm_arch 7;        then echo armv7

  4534.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4535.         elif check_arm_arch 7S;       then echo armv7-a

  4536.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4537.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4538.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4539.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4540.         fi

  4541.     }

  4542. 

  4543.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4544. 

  4545.     case $cpu in

  4546.         armv*)

  4547.             cpuflags="-march=$cpu"

  4548.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4549.         ;;

  4550.         *)

  4551.             cpuflags="-mcpu=$cpu"

  4552.             case $cpu in

  4553.                 cortex-a*)                               subarch=armv7a  ;;

  4554.                 cortex-r*)                               subarch=armv7r  ;;

  4555.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4556.                 arm11*)                                  subarch=armv6   ;;

  4557.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4558.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4559.                 *)                             subarch=$(probe_arm_arch) ;;

  4560.             esac

  4561.         ;;

  4562.     esac

  4563. 

  4564.     case "$subarch" in

  4565.         armv5t*)    enable fast_clz                ;;

  4566.         armv[6-8]*)

  4567.             enable fast_clz

  4568.             disabled fast_unaligned || enable fast_unaligned

  4569.             ;;

  4570.     esac

  4571. 

  4572. elif enabled avr32; then

  4573. 

  4574.     case $cpu in

  4575.         ap7[02]0[0-2])

  4576.             subarch="avr32_ap"

  4577.             cpuflags="-mpart=$cpu"

  4578.         ;;

  4579.         ap)

  4580.             subarch="avr32_ap"

  4581.             cpuflags="-march=$cpu"

  4582.         ;;

  4583.         uc3[ab]*)

  4584.             subarch="avr32_uc"

  4585.             cpuflags="-mcpu=$cpu"

  4586.         ;;

  4587.         uc)

  4588.             subarch="avr32_uc"

  4589.             cpuflags="-march=$cpu"

  4590.         ;;

  4591.     esac

  4592. 

  4593. elif enabled bfin; then

  4594. 

  4595.     cpuflags="-mcpu=$cpu"

  4596. 

  4597. elif enabled mips; then

  4598. 

  4599.     cpuflags="-march=$cpu"

  4600. 

  4601.     if [ "$cpu" != "generic" ]; then

  4602.         disable mips32r2

  4603.         disable mips32r5

  4604.         disable mips64r2

  4605.         disable mips32r6

  4606.         disable mips64r6

  4607.         disable loongson2

  4608.         disable loongson3

  4609. 

  4610.         case $cpu in

  4611.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4612.                 enable mips32r2

  4613.                 disable msa

  4614.             ;;

  4615.             p5600|i6400|p6600)

  4616.                 disable mipsdsp

  4617.                 disable mipsdspr2

  4618.             ;;

  4619.             loongson*)

  4620.                 enable loongson2

  4621.                 enable loongson3

  4622.                 enable local_aligned

  4623.                 enable simd_align_16

  4624.                 enable fast_64bit

  4625.                 enable fast_clz

  4626.                 enable fast_cmov

  4627.                 enable fast_unaligned

  4628.                 disable aligned_stack

  4629.                 disable mipsfpu

  4630.                 disable mipsdsp

  4631.                 disable mipsdspr2

  4632.                 case $cpu in

  4633.                     loongson3*)

  4634.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4635.                     ;;

  4636.                     loongson2e)

  4637.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4638.                     ;;

  4639.                     loongson2f)

  4640.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4641.                     ;;

  4642.                 esac

  4643.             ;;

  4644.             *)

  4645.                 # Unknown CPU. Disable everything.

  4646.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4647.                 disable mipsfpu

  4648.                 disable mipsdsp

  4649.                 disable mipsdspr2

  4650.                 disable msa

  4651.                 disable mmi

  4652.             ;;

  4653.         esac

  4654. 

  4655.         case $cpu in

  4656.             24kc)

  4657.                 disable mipsfpu

  4658.                 disable mipsdsp

  4659.                 disable mipsdspr2

  4660.             ;;

  4661.             24kf*)

  4662.                 disable mipsdsp

  4663.                 disable mipsdspr2

  4664.             ;;

  4665.             24kec|34kc|1004kc)

  4666.                 disable mipsfpu

  4667.                 disable mipsdspr2

  4668.             ;;

  4669.             24kef*|34kf*|1004kf*)

  4670.                 disable mipsdspr2

  4671.             ;;

  4672.             74kc)

  4673.                 disable mipsfpu

  4674.             ;;

  4675.             p5600)

  4676.                 enable mips32r5

  4677.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4678.             ;;

  4679.             i6400)

  4680.                 enable mips64r6

  4681.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4682.             ;;

  4683.             p6600)

  4684.                 enable mips64r6

  4685.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4686.             ;;

  4687.         esac

  4688.     else

  4689.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4690.         warn 'generic cpu selected'

  4691.     fi

  4692. 

  4693. elif enabled ppc; then

  4694. 

  4695.     disable ldbrx

  4696. 

  4697.     case $(tolower $cpu) in

  4698.         601|ppc601|powerpc601)

  4699.             cpuflags="-mcpu=601"

  4700.             disable altivec

  4701.         ;;

  4702.         603*|ppc603*|powerpc603*)

  4703.             cpuflags="-mcpu=603"

  4704.             disable altivec

  4705.         ;;

  4706.         604*|ppc604*|powerpc604*)

  4707.             cpuflags="-mcpu=604"

  4708.             disable altivec

  4709.         ;;

  4710.         g3|75*|ppc75*|powerpc75*)

  4711.             cpuflags="-mcpu=750"

  4712.             disable altivec

  4713.         ;;

  4714.         g4|745*|ppc745*|powerpc745*)

  4715.             cpuflags="-mcpu=7450"

  4716.             disable vsx

  4717.         ;;

  4718.         74*|ppc74*|powerpc74*)

  4719.             cpuflags="-mcpu=7400"

  4720.             disable vsx

  4721.         ;;

  4722.         g5|970|ppc970|powerpc970)

  4723.             cpuflags="-mcpu=970"

  4724.             disable vsx

  4725.         ;;

  4726.         power[3-6]*)

  4727.             cpuflags="-mcpu=$cpu"

  4728.             disable vsx

  4729.         ;;

  4730.         power[7-8]*)

  4731.             cpuflags="-mcpu=$cpu"

  4732.         ;;

  4733.         cell)

  4734.             cpuflags="-mcpu=cell"

  4735.             enable ldbrx

  4736.             disable vsx

  4737.         ;;

  4738.         e500mc)

  4739.             cpuflags="-mcpu=e500mc"

  4740.             disable altivec

  4741.         ;;

  4742.         e500v2)

  4743.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4744.             disable altivec

  4745.             disable dcbzl

  4746.         ;;

  4747.         e500)

  4748.             cpuflags="-mcpu=8540 -mhard-float"

  4749.             disable altivec

  4750.             disable dcbzl

  4751.         ;;

  4752.     esac

  4753. 

  4754. elif enabled sparc; then

  4755. 

  4756.     case $cpu in

  4757.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4758.             cpuflags="-mcpu=$cpu"

  4759.         ;;

  4760.         ultrasparc*|niagara[234])

  4761.             cpuflags="-mcpu=$cpu"

  4762.         ;;

  4763.     esac

  4764. 

  4765. elif enabled x86; then

  4766. 

  4767.     case $cpu in

  4768.         i[345]86|pentium)

  4769.             cpuflags="-march=$cpu"

  4770.             disable i686

  4771.             disable mmx

  4772.         ;;

  4773.         # targets that do NOT support nopl and conditional mov (cmov)

  4774.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4775.             cpuflags="-march=$cpu"

  4776.             disable i686

  4777.         ;;

  4778.         # targets that do support nopl and conditional mov (cmov)

  4779.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4780.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4781.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4782.             cpuflags="-march=$cpu"

  4783.             enable i686

  4784.             enable fast_cmov

  4785.         ;;

  4786.         # targets that do support conditional mov but on which it's slow

  4787.         pentium4|pentium4m|prescott|nocona)

  4788.             cpuflags="-march=$cpu"

  4789.             enable i686

  4790.             disable fast_cmov

  4791.         ;;

  4792.     esac

  4793. 

  4794. fi

  4795. 

  4796. if [ "$cpu" != generic ]; then

  4797.     add_cflags  $cpuflags

  4798.     add_asflags $cpuflags

  4799.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4800. fi

  4801. 

  4802. # compiler sanity check

  4803. check_exec <<EOF

  4804. int main(void){ return 0; }

  4805. EOF

  4806. if test "$?" != 0; then

  4807.     echo "$cc is unable to create an executable file."

  4808.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4809.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4810.         echo "Only do this if you know what cross compiling means."

  4811.     fi

  4812.     die "C compiler test failed."

  4813. fi

  4814. 

  4815. add_cppflags -D_ISOC99_SOURCE

  4816. add_cxxflags -D__STDC_CONSTANT_MACROS

  4817. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4818. 

  4819. # some compilers silently accept -std=c11, so we also need to check that the

  4820. # version macro is defined properly

  4821. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4822.     add_cflags -std=c11 ||

  4823.     check_cflags -std=c99

  4824. 

  4825. check_cppflags -D_FILE_OFFSET_BITS=64

  4826. check_cppflags -D_LARGEFILE_SOURCE

  4827. 

  4828. add_host_cppflags -D_ISOC99_SOURCE

  4829. check_host_cflags -std=c99

  4830. check_host_cflags -Wall

  4831. check_host_cflags $host_cflags_speed

  4832. 

  4833. check_64bit(){

  4834.     arch32=$1

  4835.     arch64=$2

  4836.     expr=$3

  4837.     check_code cc "" "int test[2*($expr) - 1]" &&

  4838.         subarch=$arch64 || subarch=$arch32

  4839.     enable $subarch

  4840. }

  4841. 

  4842. case "$arch" in

  4843.     aarch64|alpha|ia64)

  4844.         enabled shared && enable_weak pic

  4845.     ;;

  4846.     mips)

  4847.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4848.         enabled shared && enable_weak pic

  4849.     ;;

  4850.     parisc)

  4851.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4852.         enabled shared && enable_weak pic

  4853.     ;;

  4854.     ppc)

  4855.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4856.         enabled shared && enable_weak pic

  4857.     ;;

  4858.     s390)

  4859.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4860.         enabled shared && enable_weak pic

  4861.     ;;

  4862.     sparc)

  4863.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4864.         enabled shared && enable_weak pic

  4865.     ;;

  4866.     x86)

  4867.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4868.         # Treat x32 as x64 for now. Note it also needs pic if shared

  4869.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4870.             subarch=x86_64 && enable x86_64 && disable x86_32

  4871.         if enabled x86_64; then

  4872.             enabled shared && enable_weak pic

  4873.             objformat=elf64

  4874.         fi

  4875.     ;;

  4876. esac

  4877. 

  4878. # OS specific

  4879. case $target_os in

  4880.     aix)

  4881.         SHFLAGS=-shared

  4882.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4883.         enabled shared && add_ldflags -Wl,-brtl

  4884.         arflags='-Xany -r -c'

  4885.         ;;

  4886.     android)

  4887.         disable symver

  4888.         enable section_data_rel_ro

  4889.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4890.         SLIB_INSTALL_LINKS=

  4891.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4892.         ;;

  4893.     haiku)

  4894.         prefix_default="/boot/common"

  4895.         network_extralibs="-lnetwork"

  4896.         host_extralibs=

  4897.         ;;

  4898.     sunos)

  4899.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4900.         enabled x86 && append SHFLAGS -mimpure-text

  4901.         network_extralibs="-lsocket -lnsl"

  4902.         add_cppflags -D__EXTENSIONS__

  4903.         # When using suncc to build, the Solaris linker will mark

  4904.         # an executable with each instruction set encountered by

  4905.         # the Solaris assembler.  As our libraries contain their own

  4906.         # guards for processor-specific code, instead suppress

  4907.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4908.         enabled_all suncc x86 &&

  4909.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4910.             add_ldflags -Wl,-M,mapfile

  4911.         nm_default='nm -P -g'

  4912.         version_script='-M'

  4913.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4914.         ;;

  4915.     netbsd)

  4916.         disable symver

  4917.         oss_indev_extralibs="-lossaudio"

  4918.         oss_outdev_extralibs="-lossaudio"

  4919.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4920.         ;;

  4921.     openbsd|bitrig)

  4922.         disable symver

  4923.         SHFLAGS='-shared'

  4924.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4925.         SLIB_INSTALL_LINKS=

  4926.         oss_indev_extralibs="-lossaudio"

  4927.         oss_outdev_extralibs="-lossaudio"

  4928.         ;;

  4929.     dragonfly)

  4930.         disable symver

  4931.         ;;

  4932.     freebsd)

  4933.         ;;

  4934.     bsd/os)

  4935.         add_extralibs -lpoll -lgnugetopt

  4936.         strip="strip -d"

  4937.         ;;

  4938.     darwin)

  4939.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4940.         install_name_dir_default='$(SHLIBDIR)'

  4941.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4942.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4943.         strip="${strip} -x"

  4944.         add_ldflags -Wl,-dynamic,-search_paths_first

  4945.         check_cflags -Werror=partial-availability

  4946.         SLIBSUF=".dylib"

  4947.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4948.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4949.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4950.         enabled_any pic shared x86_64 ||

  4951.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4952.         check_header dispatch/dispatch.h &&

  4953.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4954.         if test -n "$sysroot"; then

  4955.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  4956.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  4957.         fi

  4958.         version_script='-exported_symbols_list'

  4959.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4960.         ;;

  4961.     msys*)

  4962.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4963.         ;;

  4964.     mingw32*|mingw64*)

  4965.         target_os=mingw32

  4966.         if enabled shared; then

  4967.             # Cannot build both shared and static libs when using dllimport.

  4968.             disable static

  4969.         fi

  4970.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4971.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4972.         shlibdir_default="$bindir_default"

  4973.         SLIBPREF=""

  4974.         SLIBSUF=".dll"

  4975.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4976.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4977.         SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4978.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4979.         SLIB_INSTALL_LINKS=

  4980.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4981.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4982.         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)'

  4983.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  4984.         enabled x86_64 && objformat="win64" || objformat="win32"

  4985.         ranlib=:

  4986.         enable dos_paths

  4987.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4988.         # Lets work around some stupidity in binutils.

  4989.         # ld will strip relocations from executables even though we need them

  4990.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4991.         # however ld then forgets what the entry point should be (oops) so we

  4992.         # have to manually (re)set it.

  4993.         if enabled x86_32; then

  4994.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4995.         elif enabled x86_64; then

  4996.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4997.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4998.             # Set image base >4GB for extra entropy with HEASLR

  4999.             add_ldexeflags -Wl,--image-base,0x140000000

  5000.             append SHFLAGS -Wl,--image-base,0x180000000

  5001.         fi

  5002.         ;;

  5003.     win32|win64)

  5004.         disable symver

  5005.         if enabled shared; then

  5006.             # Link to the import library instead of the normal static library

  5007.             # for shared libs.

  5008.             LD_LIB='%.lib'

  5009.             # Cannot build both shared and static libs with MSVC or icl.

  5010.             disable static

  5011.         fi

  5012.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5013.         shlibdir_default="$bindir_default"

  5014.         SLIBPREF=""

  5015.         SLIBSUF=".dll"

  5016.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5017.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5018.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5019.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5020.         SLIB_INSTALL_LINKS=

  5021.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5022.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5023.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5024.         enabled x86_64 && objformat="win64" || objformat="win32"

  5025.         ranlib=:

  5026.         enable dos_paths

  5027.         ;;

  5028.     cygwin*)

  5029.         target_os=cygwin

  5030.         shlibdir_default="$bindir_default"

  5031.         SLIBPREF="cyg"

  5032.         SLIBSUF=".dll"

  5033.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5034.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5035.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5036.         SLIB_INSTALL_LINKS=

  5037.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5038.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5039.         enabled x86_64 && objformat="win64" || objformat="win32"

  5040.         enable dos_paths

  5041.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5042.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5043.         ;;

  5044.     *-dos|freedos|opendos)

  5045.         network_extralibs="-lsocket"

  5046.         objformat="coff"

  5047.         enable dos_paths

  5048.         add_cppflags -U__STRICT_ANSI__

  5049.         ;;

  5050.     linux)

  5051.         enable section_data_rel_ro

  5052.         enabled_any arm aarch64 && enable_weak linux_perf

  5053.         ;;

  5054.     irix*)

  5055.         target_os=irix

  5056.         ranlib="echo ignoring ranlib"

  5057.         ;;

  5058.     os/2*)

  5059.         strip="lxlite -CS"

  5060.         striptype=""

  5061.         objformat="aout"

  5062.         add_cppflags -D_GNU_SOURCE

  5063.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5064.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5065.         LIBSUF="_s.a"

  5066.         SLIBPREF=""

  5067.         SLIBSUF=".dll"

  5068.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5069.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5070.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5071.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5072.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5073.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5074.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5075.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5076.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5077.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5078.         SLIB_INSTALL_LINKS=

  5079.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5080.         enable dos_paths

  5081.         enable_weak os2threads

  5082.         ;;

  5083.     gnu/kfreebsd)

  5084.         add_cppflags -D_BSD_SOURCE

  5085.         ;;

  5086.     gnu)

  5087.         ;;

  5088.     qnx)

  5089.         add_cppflags -D_QNX_SOURCE

  5090.         network_extralibs="-lsocket"

  5091.         ;;

  5092.     symbian)

  5093.         SLIBSUF=".dll"

  5094.         enable dos_paths

  5095.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5096.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5097.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5098.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5099.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5100.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5101.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5102.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5103.         ;;

  5104.     minix)

  5105.         ;;

  5106.     none)

  5107.         ;;

  5108.     *)

  5109.         die "Unknown OS '$target_os'."

  5110.         ;;

  5111. esac

  5112. 

  5113. # test if creating links works

  5114. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5115. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5116. mkdir "$link_dest"

  5117. $ln_s "$link_dest" "$link_name"

  5118. touch "$link_dest/test_file"

  5119. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5120.     # create link to source path

  5121.     [ -e src ] && rm src

  5122.     $ln_s "$source_path" src

  5123.     source_link=src

  5124. else

  5125.     # creating directory links doesn't work

  5126.     # fall back to using the full source path

  5127.     source_link="$source_path"

  5128. fi

  5129. # cleanup

  5130. rm -r "$link_dest"

  5131. rm -r "$link_name"

  5132. 

  5133. # determine libc flavour

  5134. 

  5135. probe_libc(){

  5136.     pfx=$1

  5137.     pfx_no_=${pfx%_}

  5138.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5139.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5140.         eval ${pfx}libc_type=uclibc

  5141.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5142.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5143.         eval ${pfx}libc_type=glibc

  5144.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5145.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5146.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5147.         eval ${pfx}libc_type=newlib

  5148.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5149.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5150.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5151.         eval ${pfx}libc_type=mingw64

  5152.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5153.             add_compat msvcrt/snprintf.o

  5154.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5155.         fi

  5156.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5157.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5158.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5159.         check_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5160.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5161.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5162.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5163.         eval ${pfx}libc_type=mingw32

  5164.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5165.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5166.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5167.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5168.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5169.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5170.         check_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5171.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5172.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5173.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5174.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5175.         eval ${pfx}libc_type=msvcrt

  5176.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5177.             if [ "$pfx" = host_ ]; then

  5178.                 add_host_cppflags -Dsnprintf=_snprintf

  5179.             else

  5180.                 add_compat strtod.o strtod=avpriv_strtod

  5181.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5182.                                              _snprintf=avpriv_snprintf  \

  5183.                                              vsnprintf=avpriv_vsnprintf

  5184.             fi

  5185.         fi

  5186.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5187.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5188.         # 0x601 by default unless something else is set by the user.

  5189.         # This can easily lead to us detecting functions only present

  5190.         # in such new versions and producing binaries requiring windows 7.0.

  5191.         # Therefore explicitly set the default to Vista unless the user has

  5192.         # set something else on the command line.

  5193.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5194.         # family. For these cases, configure is free to use any functions

  5195.         # found in the SDK headers by default. (Alternatively, we could force

  5196.         # _WIN32_WINNT to 0x0602 in that case.)

  5197.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5198.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }

  5199. #ifdef WINAPI_FAMILY

  5200. #include <winapifamily.h>

  5201. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5202. #error not desktop

  5203. #endif

  5204. #endif

  5205. EOF

  5206.         if [ "$pfx" = "" ]; then

  5207.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5208.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5209.         fi

  5210.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5211.         eval ${pfx}libc_type=klibc

  5212.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5213.         eval ${pfx}libc_type=bionic

  5214.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5215.         eval ${pfx}libc_type=solaris

  5216.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5217.     fi

  5218.     check_${pfx}cc <<EOF

  5219. #include <time.h>

  5220. void *v = localtime_r;

  5221. EOF

  5222. test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5223. #include <time.h>

  5224. void *v = localtime_r;

  5225. EOF

  5226. 

  5227.     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}

  5228. }

  5229. 

  5230. probe_libc

  5231. probe_libc host_

  5232. 

  5233. # hacks for compiler/libc/os combinations

  5234. 

  5235. case $libc_type in

  5236.     bionic)

  5237.         add_compat strtod.o strtod=avpriv_strtod

  5238.         ;;

  5239. esac

  5240. 

  5241. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5242.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5243. 

  5244. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5245. 

  5246. set_default libdir

  5247. : ${shlibdir_default:="$libdir"}

  5248. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5249. 

  5250. set_default $PATHS_LIST

  5251. set_default nm

  5252. 

  5253. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5254. 

  5255. enable_weak_pic() {

  5256.     disabled pic && return

  5257.     enable pic

  5258.     add_cppflags -DPIC

  5259.     case "$target_os" in

  5260.     mingw*|cygwin*|win*)

  5261.         ;;

  5262.     *)

  5263.         add_cflags -fPIC

  5264.         add_asflags -fPIC

  5265.         ;;

  5266.     esac

  5267. }

  5268. 

  5269. enabled pic && enable_weak_pic

  5270. 

  5271. check_cc <<EOF || die "Symbol mangling check failed."

  5272. int ff_extern;

  5273. EOF

  5274. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5275. extern_prefix=${sym%%ff_extern*}

  5276. 

  5277. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5278. 

  5279. _restrict=

  5280. for restrict_keyword in restrict __restrict__ __restrict; do

  5281.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5282. void foo(char * $restrict_keyword p);

  5283. EOF

  5284. done

  5285. 

  5286. check_cc <<EOF && enable pragma_deprecated

  5287. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5288. EOF

  5289. 

  5290. check_cc <<EOF || die "endian test failed"

  5291. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5292. EOF

  5293. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5294. 

  5295. check_cc <<EOF && enable const_nan

  5296. #include <math.h>

  5297. void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }

  5298. EOF

  5299. 

  5300. if ! enabled ppc64 || enabled bigendian; then

  5301.     disable vsx

  5302. fi

  5303. 

  5304. check_gas() {

  5305.     log "check_gas using '$as' as AS"

  5306.     # :vararg is used on aarch64, arm and ppc altivec

  5307.     check_as <<EOF || return 1

  5308. .macro m n, y:vararg=0

  5309. \n: .int \y

  5310. .endm

  5311. m x

  5312. EOF

  5313.     # .altmacro is only used in arm asm

  5314.     ! enabled arm || check_as <<EOF || return 1

  5315. .altmacro

  5316. EOF

  5317.     enable gnu_as

  5318.     return 0

  5319. }

  5320. 

  5321. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5322.     nogas=:

  5323.     enabled_any arm aarch64 && nogas=die

  5324.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5325.     as_noop=-v

  5326. 

  5327.     case $as_type in

  5328.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5329.         gcc)  gaspp_as_type=gas ;;

  5330.         *)    gaspp_as_type=$as_type ;;

  5331.     esac

  5332. 

  5333.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5334. 

  5335.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5336.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5337.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5338. 

  5339.     if ! check_gas ; then

  5340.         as=${gas:=$as}

  5341.         check_gas || \

  5342.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5343.     fi

  5344. 

  5345.     check_as <<EOF && enable as_func

  5346. .func test

  5347. .endfunc

  5348. EOF

  5349. fi

  5350. 

  5351. check_inline_asm inline_asm_labels '"1:\n"'

  5352. 

  5353. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5354. 

  5355. if enabled aarch64; then

  5356.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5357.     # internal assembler in clang 3.3 does not support this instruction

  5358.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5359.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5360. 

  5361.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5362. 

  5363. elif enabled alpha; then

  5364. 

  5365.     check_cflags -mieee

  5366. 

  5367. elif enabled arm; then

  5368. 

  5369.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5370. 

  5371.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5372. float func(float a, float b){ return a+b; }

  5373. EOF

  5374. 

  5375.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5376. 

  5377.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5378.         enable vfp_args

  5379.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5380.         enable vfp_args

  5381.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5382.         case "${cross_prefix:-$cc}" in

  5383.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5384.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5385. __asm__ (".eabi_attribute 28, 1");

  5386. int main(void) { return 0; }

  5387. EOF

  5388.         esac

  5389.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5390.     fi

  5391. 

  5392.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5393.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5394.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5395.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5396.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5397.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5398.     enabled setend  && check_insn setend  'setend be'

  5399. 

  5400.     [ $target_os = linux ] || [ $target_os = android ] ||

  5401.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5402.             $ARCH_EXT_LIST_ARM

  5403. 

  5404.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5405. 

  5406.     check_as <<EOF && enable as_arch_directive

  5407. .arch armv7-a

  5408. EOF

  5409.     check_as <<EOF && enable as_fpu_directive

  5410. .fpu neon

  5411. EOF

  5412. 

  5413.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5414.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5415.         check_as <<EOF && enable as_object_arch

  5416. .object_arch armv4

  5417. EOF

  5418. 

  5419.     # MS armasm fails to assemble our PIC constructs

  5420.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5421. 

  5422. elif enabled mips; then

  5423. 

  5424.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5425.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5426.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5427. 

  5428.     # Enable minimum ISA based on selected options

  5429.     if enabled mips64; then

  5430.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5431.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5432.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5433.     else

  5434.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5435.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5436.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5437.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5438.     fi

  5439. 

  5440.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5441.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5442.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5443.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5444.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5445. 

  5446.     if enabled bigendian && enabled msa; then

  5447.         disable msa

  5448.     fi

  5449. 

  5450. elif enabled parisc; then

  5451. 

  5452.     if enabled gcc; then

  5453.         case $($cc -dumpversion) in

  5454.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5455.         esac

  5456.     fi

  5457. 

  5458. elif enabled ppc; then

  5459. 

  5460.     enable local_aligned

  5461. 

  5462.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5463.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5464.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5465.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5466. 

  5467.     if enabled altivec; then

  5468.         check_cflags -maltivec -mabi=altivec

  5469. 

  5470.         # check if our compiler supports Motorola AltiVec C API

  5471.         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };

  5472.                                  vector signed int v2 = (vector signed int) { 1 };

  5473.                                  v1 = vec_add(v1, v2);" ||

  5474.             disable altivec

  5475. 

  5476.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5477.     fi

  5478. 

  5479.     if enabled vsx; then

  5480.         check_cflags -mvsx &&

  5481.         check_code cc altivec.h "int v[4] = { 0 };

  5482.                                  vector signed int v1 = vec_vsx_ld(0, v);" ||

  5483.             disable vsx

  5484.     fi

  5485. 

  5486.     if enabled power8; then

  5487.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5488.     fi

  5489. 

  5490. elif enabled x86; then

  5491. 

  5492.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5493.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5494. 

  5495.     enable local_aligned

  5496. 

  5497.     # check whether EBP is available on x86

  5498.     # As 'i' is stored on the stack, this program will crash

  5499.     # if the base pointer is used to access it because the

  5500.     # base pointer is cleared in the inline assembly code.

  5501.     check_exec_crash <<EOF && enable ebp_available

  5502. volatile int i=0;

  5503. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5504. return i;

  5505. EOF

  5506. 

  5507.     # check whether EBX is available on x86

  5508.     check_inline_asm ebx_available '""::"b"(0)' &&

  5509.         check_inline_asm ebx_available '"":::"%ebx"'

  5510. 

  5511.     # check whether xmm clobbers are supported

  5512.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5513. 

  5514.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5515.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5516. 

  5517.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5518.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5519.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5520. 

  5521.     probe_x86asm(){

  5522.         x86asmexe_probe=$1

  5523.         if check_cmd $x86asmexe_probe -v; then

  5524.             x86asmexe=$x86asmexe_probe

  5525.             x86asm_type=nasm

  5526.             x86asm_debug="-g -F dwarf"

  5527.             X86ASMDEP=

  5528.             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5529.         elif check_cmd $x86asmexe_probe --version; then

  5530.             x86asmexe=$x86asmexe_probe

  5531.             x86asm_type=yasm

  5532.             x86asm_debug="-g dwarf2"

  5533.             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5534.             X86ASM_DEPFLAGS=

  5535.         fi

  5536.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5537.     }

  5538. 

  5539.     if ! disabled_any asm mmx x86asm; then

  5540.         disable x86asm

  5541.         for program in $x86asmexe nasm yasm; do

  5542.             probe_x86asm $program && break

  5543.         done

  5544.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5545.         X86ASMFLAGS="-f $objformat"

  5546.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5547.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5548.         case "$objformat" in

  5549.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5550.         esac

  5551. 

  5552.         check_x86asm "vmovdqa32 [eax]{k1}{z}, zmm0"    || disable avx512_external

  5553.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5554.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5555.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5556.         check_x86asm "CPU amdnop" || disable cpunop

  5557.     fi

  5558. 

  5559.     case "$cpu" in

  5560.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5561.             disable fast_clz

  5562.         ;;

  5563.     esac

  5564. 

  5565. fi

  5566. 

  5567. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5568. 

  5569. check_ldflags -Wl,--as-needed

  5570. check_ldflags -Wl,-z,noexecstack

  5571. 

  5572. if ! disabled network; then

  5573.     check_func getaddrinfo $network_extralibs

  5574.     check_func inet_aton $network_extralibs

  5575. 

  5576.     check_type netdb.h "struct addrinfo"

  5577.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5578.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5579.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5580.     check_type poll.h "struct pollfd"

  5581.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5582.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5583.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5584.     check_type netinet/in.h "struct sockaddr_in6"

  5585.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5586.     check_type "sys/types.h sys/socket.h" socklen_t

  5587. 

  5588.     # Prefer arpa/inet.h over winsock2

  5589.     if check_header arpa/inet.h ; then

  5590.         check_func closesocket

  5591.     elif check_header winsock2.h ; then

  5592.         check_func_headers winsock2.h closesocket -lws2 &&

  5593.             network_extralibs="-lws2" ||

  5594.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5595.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5596.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5597. 

  5598.         check_type ws2tcpip.h socklen_t

  5599.         check_type ws2tcpip.h "struct addrinfo"

  5600.         check_type ws2tcpip.h "struct group_source_req"

  5601.         check_type ws2tcpip.h "struct ip_mreq_source"

  5602.         check_type ws2tcpip.h "struct ipv6_mreq"

  5603.         check_type winsock2.h "struct pollfd"

  5604.         check_struct winsock2.h "struct sockaddr" sa_len

  5605.         check_type ws2tcpip.h "struct sockaddr_in6"

  5606.         check_type ws2tcpip.h "struct sockaddr_storage"

  5607.     else

  5608.         disable network

  5609.     fi

  5610. fi

  5611. 

  5612. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5613. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5614. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5615. check_builtin sarestart signal.h "SA_RESTART"

  5616. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5617. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5618. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5619. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5620. 

  5621. case "$custom_allocator" in

  5622.     jemalloc)

  5623.         # jemalloc by default does not use a prefix

  5624.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5625.     ;;

  5626.     tcmalloc)

  5627.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5628.         malloc_prefix=tc_

  5629.     ;;

  5630. esac

  5631. 

  5632. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5633. check_func  ${malloc_prefix}memalign            && enable memalign

  5634. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5635. 

  5636. check_func  access

  5637. check_func_headers stdlib.h arc4random

  5638. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5639. check_func  fcntl

  5640. check_func  fork

  5641. check_func  gethrtime

  5642. check_func  getopt

  5643. check_func  getrusage

  5644. check_func  gettimeofday

  5645. check_func  isatty

  5646. check_func  mkstemp

  5647. check_func  mmap

  5648. check_func  mprotect

  5649. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5650. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5651. check_func  sched_getaffinity

  5652. check_func  setrlimit

  5653. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5654. check_func  strerror_r

  5655. check_func  sysconf

  5656. check_func  sysctl

  5657. check_func  usleep

  5658. 

  5659. check_func_headers conio.h kbhit

  5660. check_func_headers io.h setmode

  5661. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5662. check_func_headers mach/mach_time.h mach_absolute_time

  5663. check_func_headers stdlib.h getenv

  5664. check_func_headers sys/stat.h lstat

  5665. 

  5666. check_func_headers windows.h GetProcessAffinityMask

  5667. check_func_headers windows.h GetProcessTimes

  5668. check_func_headers windows.h GetSystemTimeAsFileTime

  5669. check_func_headers windows.h LoadLibrary

  5670. check_func_headers windows.h MapViewOfFile

  5671. check_func_headers windows.h PeekNamedPipe

  5672. check_func_headers windows.h SetConsoleTextAttribute

  5673. check_func_headers windows.h SetConsoleCtrlHandler

  5674. check_func_headers windows.h Sleep

  5675. check_func_headers windows.h VirtualAlloc

  5676. check_func_headers glob.h glob

  5677. enabled xlib &&

  5678.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5679. 

  5680. check_header direct.h

  5681. check_header dirent.h

  5682. check_header dxgidebug.h

  5683. check_header dxva.h

  5684. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5685. check_header io.h

  5686. check_header libcrystalhd/libcrystalhd_if.h

  5687. check_header malloc.h

  5688. check_header net/udplite.h

  5689. check_header poll.h

  5690. check_header sys/param.h

  5691. check_header sys/resource.h

  5692. check_header sys/select.h

  5693. check_header sys/time.h

  5694. check_header sys/un.h

  5695. check_header termios.h

  5696. check_header unistd.h

  5697. check_header valgrind/valgrind.h

  5698. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5699. check_header windows.h

  5700. check_header X11/extensions/XvMClib.h

  5701. check_header asm/types.h

  5702. 

  5703. # it seems there are versions of clang in some distros that try to use the

  5704. # gcc headers, which explodes for stdatomic

  5705. # so we also check that atomics actually work here

  5706. check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5707. 

  5708. check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32

  5709. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5710. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5711. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5712. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5713. 

  5714. enabled appkit       && check_apple_framework AppKit

  5715. enabled audiotoolbox && check_apple_framework AudioToolbox

  5716. enabled avfoundation && check_apple_framework AVFoundation

  5717. enabled coreimage    && check_apple_framework CoreImage

  5718. enabled videotoolbox && check_apple_framework VideoToolbox

  5719. 

  5720. check_apple_framework CoreFoundation

  5721. check_apple_framework CoreMedia

  5722. check_apple_framework CoreVideo

  5723. 

  5724. enabled avfoundation && {

  5725.     disable coregraphics applicationservices

  5726.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5727.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5728. 

  5729. enabled videotoolbox && {

  5730.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5731.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5732. }

  5733. 

  5734. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5735. 

  5736. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5737. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5738. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5739. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5740. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5741. 

  5742. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5743. check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"

  5744. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5745. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5746. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5747. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5748. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5749. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5750. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5751. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5752. 

  5753. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5754. 

  5755. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5756. 

  5757. if ! disabled w32threads && ! enabled pthreads; then

  5758.     check_func_headers "windows.h process.h" _beginthreadex &&

  5759.         check_type "windows.h" CONDITION_VARIABLE &&

  5760.         enable w32threads || disable w32threads

  5761.     if ! enabled w32threads && enabled winrt; then

  5762.         check_func_headers "windows.h" CreateThread &&

  5763.             enable w32threads || disable w32threads

  5764.     fi

  5765. fi

  5766. 

  5767. # check for some common methods of building with pthread support

  5768. # do this before the optional library checks as some of them require pthreads

  5769. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5770.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5771.        check_lib pthreads pthread.h pthread_create -pthread; then

  5772.         add_cflags -pthread

  5773.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5774.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5775.         add_cflags -pthreads

  5776.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5777.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5778.         add_cflags -ldl -pthread

  5779.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5780.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5781.         :

  5782.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5783.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5784.         :

  5785.     elif check_func pthread_join && check_func pthread_create; then

  5786.         enable pthreads

  5787.     fi

  5788.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5789. 

  5790.     if enabled pthreads; then

  5791.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5792.         check_func pthread_cancel $pthreads_extralibs

  5793.     fi

  5794. fi

  5795. 

  5796. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5797. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5798. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5799. 

  5800. # On some systems dynamic loading requires no extra linker flags

  5801. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5802. 

  5803. check_lib libm math.h sin -lm

  5804. 

  5805. atan2f_args=2

  5806. copysign_args=2

  5807. hypot_args=2

  5808. ldexpf_args=2

  5809. powf_args=2

  5810. 

  5811. for func in $MATH_FUNCS; do

  5812.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5813. done

  5814. 

  5815. for func in $COMPLEX_FUNCS; do

  5816.     eval check_complexfunc $func \${${func}_args:-1}

  5817. done

  5818. 

  5819. # these are off by default, so fail if requested and not available

  5820. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5821. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5822. enabled decklink          && { require_header DeckLinkAPI.h &&

  5823.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5824. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5825. enabled frei0r            && require_header frei0r.h

  5826. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5827. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5828. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5829. enabled ladspa            && require_header ladspa.h

  5830. enabled lv2               && require_pkg_config lv2 lilv-0 "lilv-0/lilv/lilv.h" lilv_world_new

  5831. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5832. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5833. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5834. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5835. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5836.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5837.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5838. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5839. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5840. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5841. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5842.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5843.                                  warn "using libfdk without pkg-config"; } }

  5844. 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"

  5845. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5846. enabled fontconfig        && enable libfontconfig

  5847. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5848. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5849. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5850. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5851.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5852. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5853.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5854.                                done || die "ERROR: libgsm not found"; }

  5855. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5856. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5857. # While it may appear that require is being used as a pkg-config

  5858. # fallback for libmfx, it is actually being used to detect a different

  5859. # installation route altogether.  If libmfx is installed via the Intel

  5860. # Media SDK or Intel Media Server Studio, these don't come with

  5861. # pkg-config support.  Instead, users should make sure that the build

  5862. # can find the libraries and headers through other means.

  5863. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5864.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  5865. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5866. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs

  5867. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  5868. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5869.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5870.                                die "ERROR: libnpp not found"; }

  5871. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5872. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5873. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5874.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5875.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5876.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  5877. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  5878. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  5879.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  5880. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  5881. enabled libopus           && {

  5882.     enabled libopus_decoder && {

  5883.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  5884.     }

  5885.     enabled libopus_encoder && {

  5886.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  5887.     }

  5888. }

  5889. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  5890. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5891. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  5892. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  5893. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  5894. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  5895.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  5896. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  5897. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  5898. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  5899. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  5900. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  5901. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5902. enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure

  5903. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5904.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5905.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5906. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  5907. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5908. enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 0.6.2" libvmaf.h compute_vmaf

  5909. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5910. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  5911.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5912. 

  5913. enabled libvpx            && {

  5914.     enabled libvpx_vp8_decoder && {

  5915.         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5916.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5917.                 die "ERROR: libvpx decoder version must be >=1.4.0";

  5918.     }

  5919.     enabled libvpx_vp8_encoder && {

  5920.         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5921.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5922.                 die "ERROR: libvpx encoder version must be >=1.4.0";

  5923.     }

  5924.     enabled libvpx_vp9_decoder && {

  5925.         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5926.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  5927.     }

  5928.     enabled libvpx_vp9_encoder && {

  5929.         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5930.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  5931.     }

  5932.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5933.         die "libvpx enabled but no supported decoders found"

  5934.     fi

  5935. }

  5936. 

  5937. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5938. enabled libwebp           && {

  5939.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5940.     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  5941. enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  5942.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5943.                                  warn "using libx264 without pkg-config"; } } &&

  5944.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  5945.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5946.                                enable libx262; }

  5947. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  5948.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  5949. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  5950. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5951. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version

  5952. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  5953. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  5954.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5955.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5956. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  5957. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5958. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5959.                                { ! enabled cross_compile &&

  5960.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5961.                                  add_ldflags -L/opt/vc/lib/ &&

  5962.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5963.                                die "ERROR: mmal not found" &&

  5964.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5965. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5966.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5967.                                die "ERROR: openal not found"; } &&

  5968.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5969.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5970. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5971.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5972.                                die "ERROR: opencl not found"; } &&

  5973.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5974.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5975.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5976. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5977.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5978.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5979.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5980.                                die "ERROR: opengl not found."

  5981.                              }

  5982. enabled omx               && require_header OMX_Core.h

  5983. enabled omx_rpi           && { check_header OMX_Core.h ||

  5984.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  5985.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  5986. enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  5987.                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  5988.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5989.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5990.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5991.                                die "ERROR: openssl not found"; }

  5992. enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&

  5993.                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&

  5994.                                { enabled libdrm ||

  5995.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  5996.                              }

  5997. 

  5998. if enabled gcrypt; then

  5999.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6000.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6001.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6002.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6003.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6004.             die "ERROR: gcrypt not found"

  6005.         add_cflags $gcrypt_cflags

  6006.     else

  6007.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6008.     fi

  6009. fi

  6010. 

  6011. if enabled sdl2; then

  6012.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6013.     if test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent; then

  6014.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6015.             disable sdl2

  6016.     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6017.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6018.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6019.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6020.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6021.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags &&

  6022.             enable sdl2

  6023.     fi

  6024.     if test $target_os = "mingw32"; then

  6025.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6026.     fi

  6027. fi

  6028. 

  6029. if enabled decklink; then

  6030.     case $target_os in

  6031.         mingw32*|mingw64*|win32|win64)

  6032.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6033.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6034.             ;;

  6035.     esac

  6036. fi

  6037. 

  6038. enabled securetransport &&

  6039.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6040.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6041.         disable securetransport

  6042. 

  6043. enabled securetransport &&

  6044.     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"

  6045. 

  6046. enabled schannel &&

  6047.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6048.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6049.     schannel_extralibs="-lsecur32" ||

  6050.         disable schannel

  6051. 

  6052. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6053. enabled makeinfo \

  6054.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6055.     && enable makeinfo_html || disable makeinfo_html

  6056. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6057. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6058. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6059. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6060. 

  6061. # check V4L2 codecs available in the API

  6062. check_header linux/fb.h

  6063. check_header linux/videodev2.h

  6064. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6065. check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m

  6066. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m

  6067. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m

  6068. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m

  6069. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m

  6070. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m

  6071. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m

  6072. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m

  6073. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m

  6074. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m

  6075. 

  6076. check_header sys/videoio.h

  6077. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6078. 

  6079. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6080. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6081. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6082. # w32api 3.12 had it defined wrong

  6083. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6084. 

  6085. check_type "dshow.h" IBaseFilter

  6086. 

  6087. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6088. check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||

  6089.     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||

  6090.     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||

  6091.     check_header "dev/ic/bt8xx.h"

  6092. 

  6093. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6094.     enable_sanitized sys/soundcard.h

  6095. else

  6096.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6097.     #include <sys/soundcard.h>

  6098.     audio_buf_info abc;

  6099. EOF

  6100. fi

  6101. 

  6102. enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6103.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6104. 

  6105. enabled libjack &&

  6106.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6107. 

  6108. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6109. 

  6110. if enabled libcdio; then

  6111.     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6112.     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6113.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6114.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6115.     die "ERROR: No usable libcdio/cdparanoia found"

  6116. fi

  6117. 

  6118. enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6119.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6120. 

  6121. if enabled libxcb; then

  6122.     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6123.     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6124.     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6125. fi

  6126. 

  6127. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6128. 

  6129. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6130. # the desktop api partition

  6131. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6132. #ifdef WINAPI_FAMILY

  6133. #include <winapifamily.h>

  6134. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6135. #error desktop, not uwp

  6136. #else

  6137. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6138. #endif

  6139. #else

  6140. #error no family set

  6141. #endif

  6142. EOF

  6143. 

  6144. enabled vaapi &&

  6145.     check_lib vaapi va/va.h vaInitialize -lva

  6146. 

  6147. enabled vaapi &&

  6148.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6149.     disable vaapi

  6150. 

  6151. enabled vaapi &&

  6152.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6153. 

  6154. enabled vaapi &&

  6155.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6156. 

  6157. enabled vaapi &&

  6158.     check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&

  6159.     enable vaapi_1

  6160. 

  6161. if enabled_all opencl vaapi ; then

  6162.     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&

  6163.         enable opencl_vaapi_beignet

  6164.     if enabled libmfx ; then

  6165.         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&

  6166.             enable opencl_vaapi_intel_media

  6167.     fi

  6168. fi

  6169. 

  6170. if enabled_all opencl dxva2 ; then

  6171.     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&

  6172.         enable opencl_dxva2

  6173. fi

  6174. 

  6175. if enabled_all opencl d3d11va ; then

  6176.     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&

  6177.         enable opencl_d3d11

  6178. fi

  6179. 

  6180. if enabled_all opencl libdrm ; then

  6181.     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&

  6182.         enable opencl_drm_arm

  6183. fi

  6184. 

  6185. enabled vdpau &&

  6186.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6187.     disable vdpau

  6188. 

  6189. enabled vdpau &&

  6190.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6191. 

  6192. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6193. 

  6194. if enabled x86; then

  6195.     case $target_os in

  6196.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6197.             ;;

  6198.         *)

  6199.             disable cuda cuvid nvdec nvenc

  6200.             ;;

  6201.     esac

  6202. else

  6203.     disable cuda cuvid nvdec nvenc

  6204. fi

  6205. 

  6206. enabled nvenc &&

  6207.     check_cc -I$source_path <<EOF || disable nvenc

  6208. #include "compat/nvenc/nvEncodeAPI.h"

  6209. NV_ENCODE_API_FUNCTION_LIST flist;

  6210. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6211. int main(void) { return 0; }

  6212. EOF

  6213. 

  6214. enabled amf &&

  6215.     check_cpp_condition "AMF/core/Version.h" \

  6216.         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001" ||

  6217.     disable amf

  6218. 

  6219. # Funny iconv installations are not unusual, so check it after all flags have been set

  6220. if enabled libc_iconv; then

  6221.     check_func_headers iconv.h iconv

  6222. elif enabled iconv; then

  6223.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6224. fi

  6225. 

  6226. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6227. 

  6228. # add some useful compiler flags if supported

  6229. check_cflags -Wdeclaration-after-statement

  6230. check_cflags -Wall

  6231. check_cflags -Wdisabled-optimization

  6232. check_cflags -Wpointer-arith

  6233. check_cflags -Wredundant-decls

  6234. check_cflags -Wwrite-strings

  6235. check_cflags -Wtype-limits

  6236. check_cflags -Wundef

  6237. check_cflags -Wmissing-prototypes

  6238. check_cflags -Wno-pointer-to-int-cast

  6239. check_cflags -Wstrict-prototypes

  6240. check_cflags -Wempty-body

  6241. 

  6242. if enabled extra_warnings; then

  6243.     check_cflags -Wcast-qual

  6244.     check_cflags -Wextra

  6245.     check_cflags -Wpedantic

  6246. fi

  6247. 

  6248. check_disable_warning(){

  6249.     warning_flag=-W${1#-Wno-}

  6250.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6251. }

  6252. 

  6253. test_cflags -Werror=unused-command-line-argument &&

  6254.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6255. test_cflags -Werror=unknown-warning-option &&

  6256.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6257. 

  6258. check_disable_warning -Wno-parentheses

  6259. check_disable_warning -Wno-switch

  6260. check_disable_warning -Wno-format-zero-length

  6261. check_disable_warning -Wno-pointer-sign

  6262. check_disable_warning -Wno-unused-const-variable

  6263. check_disable_warning -Wno-bool-operation

  6264. 

  6265. check_disable_warning_headers(){

  6266.     warning_flag=-W${1#-Wno-}

  6267.     test_cflags $warning_flag && add_cflags_headers $1

  6268. }

  6269. 

  6270. check_disable_warning_headers -Wno-deprecated-declarations

  6271. check_disable_warning_headers -Wno-unused-variable

  6272. 

  6273. check_cc <<EOF && enable blocks_extension

  6274. void (^block)(void);

  6275. EOF

  6276. 

  6277. # add some linker flags

  6278. check_ldflags -Wl,--warn-common

  6279. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6280. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6281. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6282. 

  6283. # add some strip flags

  6284. check_stripflags -x

  6285. 

  6286. enabled neon_clobber_test &&

  6287.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6288.                   -Wl,--wrap,avcodec_decode_audio4      \

  6289.                   -Wl,--wrap,avcodec_decode_video2      \

  6290.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6291.                   -Wl,--wrap,avcodec_encode_audio2      \

  6292.                   -Wl,--wrap,avcodec_encode_video2      \

  6293.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6294.                   -Wl,--wrap,avcodec_send_packet        \

  6295.                   -Wl,--wrap,avcodec_receive_packet     \

  6296.                   -Wl,--wrap,avcodec_send_frame         \

  6297.                   -Wl,--wrap,avcodec_receive_frame      \

  6298.                   -Wl,--wrap,swr_convert                \

  6299.                   -Wl,--wrap,avresample_convert ||

  6300.     disable neon_clobber_test

  6301. 

  6302. enabled xmm_clobber_test &&

  6303.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6304.                   -Wl,--wrap,avcodec_decode_audio4      \

  6305.                   -Wl,--wrap,avcodec_decode_video2      \

  6306.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6307.                   -Wl,--wrap,avcodec_encode_audio2      \

  6308.                   -Wl,--wrap,avcodec_encode_video2      \

  6309.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6310.                   -Wl,--wrap,avcodec_send_packet        \

  6311.                   -Wl,--wrap,avcodec_receive_packet     \

  6312.                   -Wl,--wrap,avcodec_send_frame         \

  6313.                   -Wl,--wrap,avcodec_receive_frame      \

  6314.                   -Wl,--wrap,swr_convert                \

  6315.                   -Wl,--wrap,avresample_convert         \

  6316.                   -Wl,--wrap,sws_scale ||

  6317.     disable xmm_clobber_test

  6318. 

  6319. check_ld "cc" <<EOF && enable proper_dce

  6320. extern const int array[512];

  6321. static inline int func(void) { return array[0]; }

  6322. int main(void) { return 0; }

  6323. EOF

  6324. 

  6325. if enabled proper_dce; then

  6326.     echo "X { local: *; };" > $TMPV

  6327.     if test_ldflags -Wl,${version_script},$TMPV; then

  6328.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6329.         quotes='""'

  6330.         check_cc <<EOF && enable symver_asm_label

  6331. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6332. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6333. EOF

  6334.         check_cc <<EOF && enable symver_gnu_asm

  6335. __asm__(".symver ff_foo,av_foo@VERSION");

  6336. void ff_foo(void) {}

  6337. EOF

  6338.     fi

  6339. fi

  6340. 

  6341. if [ -z "$optflags" ]; then

  6342.     if enabled small; then

  6343.         optflags=$cflags_size

  6344.     elif enabled optimizations; then

  6345.         optflags=$cflags_speed

  6346.     else

  6347.         optflags=$cflags_noopt

  6348.     fi

  6349. fi

  6350. 

  6351. if [ -z "$nvccflags" ]; then

  6352.     nvccflags=$nvccflags_default

  6353. fi

  6354. 

  6355. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6356.     nvccflags="$nvccflags -m64"

  6357. else

  6358.     nvccflags="$nvccflags -m32"

  6359. fi

  6360. 

  6361. check_optflags(){

  6362.     check_cflags "$@"

  6363.     enabled lto && check_ldflags "$@"

  6364. }

  6365. 

  6366. check_optflags $optflags

  6367. check_optflags -fno-math-errno

  6368. check_optflags -fno-signed-zeros

  6369. 

  6370. if enabled lto; then

  6371.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6372.     check_cflags  -flto

  6373.     check_ldflags -flto $cpuflags

  6374.     disable inline_asm_direct_symbol_refs

  6375. fi

  6376. 

  6377. enabled ftrapv && check_cflags -ftrapv

  6378. 

  6379. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6380. int x;

  6381. EOF

  6382. 

  6383. 

  6384. if enabled icc; then

  6385.     # Just warnings, no remarks

  6386.     check_cflags -w1

  6387.     # -wd: Disable following warnings

  6388.     # 144, 167, 556: -Wno-pointer-sign

  6389.     # 188: enumerated type mixed with another type

  6390.     # 1292: attribute "foo" ignored

  6391.     # 1419: external declaration in primary source file

  6392.     # 10006: ignoring unknown option -fno-signed-zeros

  6393.     # 10148: ignoring unknown option -Wno-parentheses

  6394.     # 10156: ignoring option '-W'; no argument required

  6395.     # 13200: No EMMS instruction before call to function

  6396.     # 13203: No EMMS instruction before return from function

  6397.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6398.     # 11030: Warning unknown option --as-needed

  6399.     # 10156: ignoring option '-export'; no argument required

  6400.     check_ldflags -wd10156,11030

  6401.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6402.     enable ebp_available

  6403.     # The test above does not test linking

  6404.     enabled lto && disable symver_asm_label

  6405.     if enabled x86_32; then

  6406.         icc_version=$($cc -dumpversion)

  6407.         test ${icc_version%%.*} -ge 11 &&

  6408.             check_cflags -falign-stack=maintain-16-byte ||

  6409.             disable aligned_stack

  6410.     fi

  6411. elif enabled gcc; then

  6412.     check_optflags -fno-tree-vectorize

  6413.     check_cflags -Werror=format-security

  6414.     check_cflags -Werror=implicit-function-declaration

  6415.     check_cflags -Werror=missing-prototypes

  6416.     check_cflags -Werror=return-type

  6417.     check_cflags -Werror=vla

  6418.     check_cflags -Wformat

  6419.     check_cflags -fdiagnostics-color=auto

  6420.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6421. elif enabled llvm_gcc; then

  6422.     check_cflags -mllvm -stack-alignment=16

  6423. elif enabled clang; then

  6424.     check_cflags -mllvm -stack-alignment=16

  6425.     check_cflags -mstack-alignment=16

  6426.     check_cflags -Qunused-arguments

  6427.     check_cflags -Werror=implicit-function-declaration

  6428.     check_cflags -Werror=missing-prototypes

  6429.     check_cflags -Werror=return-type

  6430. elif enabled cparser; then

  6431.     add_cflags -Wno-missing-variable-declarations

  6432.     add_cflags -Wno-empty-statement

  6433. elif enabled armcc; then

  6434.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6435.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6436.     # 2523: use of inline assembly is deprecated

  6437.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6438.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6439.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6440.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6441.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6442.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6443. elif enabled pathscale; then

  6444.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6445.     disable inline_asm

  6446. elif enabled_any msvc icl; then

  6447.     enabled x86_32 && disable aligned_stack

  6448.     enabled_all x86_32 debug && add_cflags -Oy-

  6449.     enabled debug && add_ldflags -debug

  6450.     enable pragma_deprecated

  6451.     if enabled icl; then

  6452.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6453.         # (correctly) on icl 13.x.

  6454.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6455.             add_cflags -Qansi-alias

  6456.         # Some inline asm is not compilable in debug

  6457.         if enabled debug; then

  6458.             disable ebp_available

  6459.             disable ebx_available

  6460.         fi

  6461.     fi

  6462.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6463.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6464.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6465.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6466.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6467.     # MSVC 2013 and newer can handle it fine.

  6468.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6469.     # happens in config.h.

  6470.     if [ $_restrict != restrict ]; then

  6471.         check_cc <<EOF || add_cflags -FIstdlib.h

  6472. __declspec($_restrict) void* foo(int);

  6473. EOF

  6474.     fi

  6475.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6476.     # Issue has been fixed in MSVC v19.00.24218.

  6477.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6478.         check_cflags -d2SSAOptimizer-

  6479.     # enable utf-8 source processing on VS2015 U2 and newer

  6480.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6481.         add_cflags -utf-8

  6482. fi

  6483. 

  6484. for pfx in "" host_; do

  6485.     varname=${pfx%_}cc_type

  6486.     eval "type=\$$varname"

  6487.     if [ "$type" = "msvc" ]; then

  6488.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6489. static inline int foo(int a) { return a; }

  6490. EOF

  6491.     fi

  6492. done

  6493. 

  6494. case $as_type in

  6495.     clang)

  6496.         add_asflags -Qunused-arguments

  6497.     ;;

  6498. esac

  6499. 

  6500. case $ld_type in

  6501.     clang)

  6502.         check_ldflags -Qunused-arguments

  6503.     ;;

  6504. esac

  6505. 

  6506. enable frame_thread_encoder

  6507. 

  6508. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6509. 

  6510. check_deps $CONFIG_LIST       \

  6511.            $CONFIG_EXTRA      \

  6512.            $HAVE_LIST         \

  6513.            $ALL_COMPONENTS    \

  6514. 

  6515. 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"

  6516. enabled avresample && warn "Building with deprecated library libavresample"

  6517. 

  6518. if test $target_os = "haiku"; then

  6519.     disable memalign

  6520.     disable posix_memalign

  6521. fi

  6522. 

  6523. flatten_extralibs(){

  6524.     unset nested_entries

  6525.     list_name=$1

  6526.     eval list=\$${1}

  6527.     for entry in $list; do

  6528.         entry_copy=$entry

  6529.         resolve entry_copy

  6530.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6531.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6532.         eval $entry="\$flat_entries"

  6533.     done

  6534.     append $list_name "$nested_entries"

  6535. 

  6536.     resolve nested_entries

  6537.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6538.         flatten_extralibs $list_name

  6539.     fi

  6540. }

  6541. 

  6542. flatten_extralibs_wrapper(){

  6543.     list_name=$1

  6544.     flatten_extralibs $list_name

  6545.     unique $list_name

  6546.     resolve $list_name

  6547.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6548.     eval printf \''%s'\' \""\$$list_name"\"

  6549. }

  6550. 

  6551. for linkunit in $LIBRARY_LIST; do

  6552.     unset current_extralibs

  6553.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6554.     for comp in ${components}; do

  6555.         enabled $comp || continue

  6556.         comp_extralibs="${comp}_extralibs"

  6557.         append current_extralibs $comp_extralibs

  6558.     done

  6559.     eval prepend ${linkunit}_extralibs $current_extralibs

  6560. done

  6561. 

  6562. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6563.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6564. done

  6565. 

  6566. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6567. 

  6568. for thread in $THREADS_LIST; do

  6569.     if enabled $thread; then

  6570.         test -n "$thread_type" &&

  6571.             die "ERROR: Only one thread type must be selected." ||

  6572.             thread_type="$thread"

  6573.     fi

  6574. done

  6575. 

  6576. if disabled stdatomic; then

  6577.     if enabled atomics_gcc; then

  6578.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6579.     elif enabled atomics_win32; then

  6580.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6581.     elif enabled atomics_suncc; then

  6582.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6583.     elif enabled pthreads; then

  6584.         add_compat atomics/pthread/stdatomic.o

  6585.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6586.     else

  6587.         enabled threads && die "Threading is enabled, but no atomics are available"

  6588.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6589.     fi

  6590. fi

  6591. 

  6592. # Check if requested libraries were found.

  6593. for lib in $AUTODETECT_LIBS; do

  6594.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6595. done

  6596. 

  6597. enabled zlib && add_cppflags -DZLIB_CONST

  6598. 

  6599. # conditional library dependencies, in linking order

  6600. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6601. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6602. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6603. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6604. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6605. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6606. enabled convolve_filter     && prepend avfilter_deps "avcodec"

  6607. enabled deconvolve_filter   && prepend avfilter_deps "avcodec"

  6608. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6609. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6610. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6611. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6612. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6613. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6614. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6615. enabled pan_filter          && prepend avfilter_deps "swresample"

  6616. enabled pp_filter           && prepend avfilter_deps "postproc"

  6617. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6618. enabled resample_filter && prepend avfilter_deps "avresample"

  6619. enabled sab_filter          && prepend avfilter_deps "swscale"

  6620. enabled scale_filter    && prepend avfilter_deps "swscale"

  6621. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6622. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6623. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6624. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6625. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6626. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6627. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6628. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6629. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6630. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6631. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6632. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6633. 

  6634. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6635. 

  6636. #FIXME

  6637. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6638. 

  6639. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6640. 

  6641. expand_deps(){

  6642.     lib_deps=${1}_deps

  6643.     eval "deps=\$$lib_deps"

  6644.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6645.     unique $lib_deps

  6646. }

  6647. 

  6648. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6649. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6650. 

  6651. map 'expand_deps $v' $LIBRARY_LIST

  6652. 

  6653. license="LGPL version 2.1 or later"

  6654. if enabled nonfree; then

  6655.     license="nonfree and unredistributable"

  6656. elif enabled gplv3; then

  6657.     license="GPL version 3 or later"

  6658. elif enabled lgplv3; then

  6659.     license="LGPL version 3 or later"

  6660. elif enabled gpl; then

  6661.     license="GPL version 2 or later"

  6662. fi

  6663. 

  6664. if test "$quiet" != "yes"; then

  6665. 

  6666. echo "install prefix            $prefix"

  6667. echo "source path               $source_path"

  6668. echo "C compiler                $cc"

  6669. echo "C library                 $libc_type"

  6670. if test "$host_cc" != "$cc"; then

  6671.     echo "host C compiler           $host_cc"

  6672.     echo "host C library            $host_libc_type"

  6673. fi

  6674. echo "ARCH                      $arch ($cpu)"

  6675. if test "$build_suffix" != ""; then

  6676.     echo "build suffix              $build_suffix"

  6677. fi

  6678. if test "$progs_suffix" != ""; then

  6679.     echo "progs suffix              $progs_suffix"

  6680. fi

  6681. if test "$extra_version" != ""; then

  6682.     echo "version string suffix     $extra_version"

  6683. fi

  6684. echo "big-endian                ${bigendian-no}"

  6685. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6686. if enabled x86; then

  6687.     echo "standalone assembly       ${x86asm-no}"

  6688.     echo "x86 assembler             ${x86asmexe}"

  6689.     echo "MMX enabled               ${mmx-no}"

  6690.     echo "MMXEXT enabled            ${mmxext-no}"

  6691.     echo "3DNow! enabled            ${amd3dnow-no}"

  6692.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6693.     echo "SSE enabled               ${sse-no}"

  6694.     echo "SSSE3 enabled             ${ssse3-no}"

  6695.     echo "AESNI enabled             ${aesni-no}"

  6696.     echo "AVX enabled               ${avx-no}"

  6697.     echo "AVX2 enabled              ${avx2-no}"

  6698.     echo "AVX-512 enabled           ${avx512-no}"

  6699.     echo "XOP enabled               ${xop-no}"

  6700.     echo "FMA3 enabled              ${fma3-no}"

  6701.     echo "FMA4 enabled              ${fma4-no}"

  6702.     echo "i686 features enabled     ${i686-no}"

  6703.     echo "CMOV is fast              ${fast_cmov-no}"

  6704.     echo "EBX available             ${ebx_available-no}"

  6705.     echo "EBP available             ${ebp_available-no}"

  6706. fi

  6707. if enabled aarch64; then

  6708.     echo "NEON enabled              ${neon-no}"

  6709.     echo "VFP enabled               ${vfp-no}"

  6710. fi

  6711. if enabled arm; then

  6712.     echo "ARMv5TE enabled           ${armv5te-no}"

  6713.     echo "ARMv6 enabled             ${armv6-no}"

  6714.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6715.     echo "VFP enabled               ${vfp-no}"

  6716.     echo "NEON enabled              ${neon-no}"

  6717.     echo "THUMB enabled             ${thumb-no}"

  6718. fi

  6719. if enabled mips; then

  6720.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6721.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6722.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6723.     echo "MIPS MSA enabled          ${msa-no}"

  6724.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6725. fi

  6726. if enabled ppc; then

  6727.     echo "AltiVec enabled           ${altivec-no}"

  6728.     echo "VSX enabled               ${vsx-no}"

  6729.     echo "POWER8 enabled            ${power8-no}"

  6730.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6731.     echo "dcbzl available           ${dcbzl-no}"

  6732. fi

  6733. echo "debug symbols             ${debug-no}"

  6734. echo "strip symbols             ${stripping-no}"

  6735. echo "optimize for size         ${small-no}"

  6736. echo "optimizations             ${optimizations-no}"

  6737. echo "static                    ${static-no}"

  6738. echo "shared                    ${shared-no}"

  6739. echo "postprocessing support    ${postproc-no}"

  6740. echo "network support           ${network-no}"

  6741. echo "threading support         ${thread_type-no}"

  6742. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6743. echo "texi2html enabled         ${texi2html-no}"

  6744. echo "perl enabled              ${perl-no}"

  6745. echo "pod2man enabled           ${pod2man-no}"

  6746. echo "makeinfo enabled          ${makeinfo-no}"

  6747. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6748. test -n "$random_seed" &&

  6749.     echo "random seed               ${random_seed}"

  6750. echo

  6751. 

  6752. echo "External libraries:"

  6753. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6754. echo

  6755. 

  6756. echo "External libraries providing hardware acceleration:"

  6757. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6758. echo

  6759. 

  6760. echo "Libraries:"

  6761. print_enabled '' $LIBRARY_LIST | print_in_columns

  6762. echo

  6763. 

  6764. echo "Programs:"

  6765. print_enabled '' $PROGRAM_LIST | print_in_columns

  6766. echo

  6767. 

  6768. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6769.     echo "Enabled ${type}s:"

  6770.     eval list=\$$(toupper $type)_LIST

  6771.     print_enabled '_*' $list | print_in_columns

  6772.     echo

  6773. done

  6774. 

  6775. if test -n "$ignore_tests"; then

  6776.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6777.     echo "Ignored FATE tests:"

  6778.     echo $ignore_tests | print_in_columns

  6779.     echo

  6780. fi

  6781. 

  6782. echo "License: $license"

  6783. 

  6784. fi # test "$quiet" != "yes"

  6785. 

  6786. if test -n "$WARNINGS"; then

  6787.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6788.     enabled fatal_warnings && exit 1

  6789. fi

  6790. 

  6791. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6792. 

  6793. esc(){

  6794.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6795. }

  6796. 

  6797. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6798. 

  6799. enabled stripping || strip="echo skipping strip"

  6800. enabled stripping || striptype=""

  6801. 

  6802. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6803. 

  6804. cat > ffbuild/config.mak <<EOF

  6805. # Automatically generated by configure - do not modify!

  6806. ifndef FFMPEG_CONFIG_MAK

  6807. FFMPEG_CONFIG_MAK=1

  6808. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6809. prefix=$prefix

  6810. LIBDIR=\$(DESTDIR)$libdir

  6811. SHLIBDIR=\$(DESTDIR)$shlibdir

  6812. INCDIR=\$(DESTDIR)$incdir

  6813. BINDIR=\$(DESTDIR)$bindir

  6814. DATADIR=\$(DESTDIR)$datadir

  6815. DOCDIR=\$(DESTDIR)$docdir

  6816. MANDIR=\$(DESTDIR)$mandir

  6817. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6818. INSTALL_NAME_DIR=$install_name_dir

  6819. SRC_PATH=$source_path

  6820. SRC_LINK=$source_link

  6821. ifndef MAIN_MAKEFILE

  6822. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6823. endif

  6824. CC_IDENT=$cc_ident

  6825. ARCH=$arch

  6826. INTRINSICS=$intrinsics

  6827. EXTERN_PREFIX=$extern_prefix

  6828. CC=$cc

  6829. CXX=$cxx

  6830. AS=$as

  6831. OBJCC=$objcc

  6832. LD=$ld

  6833. DEPCC=$dep_cc

  6834. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6835. DEPAS=$as

  6836. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6837. X86ASM=$x86asmexe

  6838. DEPX86ASM=$x86asmexe

  6839. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6840. AR=$ar

  6841. ARFLAGS=$arflags

  6842. AR_O=$ar_o

  6843. AR_CMD=$ar

  6844. NM_CMD=$nm

  6845. RANLIB=$ranlib

  6846. STRIP=$strip

  6847. STRIPTYPE=$striptype

  6848. NVCC=$nvcc

  6849. CP=cp -p

  6850. LN_S=$ln_s

  6851. CPPFLAGS=$CPPFLAGS

  6852. CFLAGS=$CFLAGS

  6853. CXXFLAGS=$CXXFLAGS

  6854. OBJCFLAGS=$OBJCFLAGS

  6855. ASFLAGS=$ASFLAGS

  6856. NVCCFLAGS=$nvccflags

  6857. AS_C=$AS_C

  6858. AS_O=$AS_O

  6859. OBJCC_C=$OBJCC_C

  6860. OBJCC_E=$OBJCC_E

  6861. OBJCC_O=$OBJCC_O

  6862. CC_C=$CC_C

  6863. CC_E=$CC_E

  6864. CC_O=$CC_O

  6865. CXX_C=$CXX_C

  6866. CXX_O=$CXX_O

  6867. NVCC_C=$NVCC_C

  6868. NVCC_O=$NVCC_O

  6869. LD_O=$LD_O

  6870. X86ASM_O=$X86ASM_O

  6871. LD_LIB=$LD_LIB

  6872. LD_PATH=$LD_PATH

  6873. WINDRES=$windres

  6874. DEPWINDRES=$dep_cc

  6875. DOXYGEN=$doxygen

  6876. LDFLAGS=$LDFLAGS

  6877. LDEXEFLAGS=$LDEXEFLAGS

  6878. LDSOFLAGS=$LDSOFLAGS

  6879. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6880. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6881. X86ASMFLAGS=$X86ASMFLAGS

  6882. BUILDSUF=$build_suffix

  6883. PROGSSUF=$progs_suffix

  6884. FULLNAME=$FULLNAME

  6885. LIBPREF=$LIBPREF

  6886. LIBSUF=$LIBSUF

  6887. LIBNAME=$LIBNAME

  6888. SLIBPREF=$SLIBPREF

  6889. SLIBSUF=$SLIBSUF

  6890. EXESUF=$EXESUF

  6891. EXTRA_VERSION=$extra_version

  6892. CCDEP=$CCDEP

  6893. CXXDEP=$CXXDEP

  6894. CCDEP_FLAGS=$CCDEP_FLAGS

  6895. ASDEP=$ASDEP

  6896. ASDEP_FLAGS=$ASDEP_FLAGS

  6897. X86ASMDEP=$X86ASMDEP

  6898. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6899. CC_DEPFLAGS=$CC_DEPFLAGS

  6900. AS_DEPFLAGS=$AS_DEPFLAGS

  6901. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6902. HOSTCC=$host_cc

  6903. HOSTLD=$host_ld

  6904. HOSTCFLAGS=$host_cflags

  6905. HOSTCPPFLAGS=$host_cppflags

  6906. HOSTEXESUF=$HOSTEXESUF

  6907. HOSTLDFLAGS=$host_ldflags

  6908. HOSTEXTRALIBS=$host_extralibs

  6909. DEPHOSTCC=$host_cc

  6910. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6911. HOSTCCDEP=$HOSTCCDEP

  6912. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6913. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6914. HOSTCC_C=$HOSTCC_C

  6915. HOSTCC_O=$HOSTCC_O

  6916. HOSTLD_O=$HOSTLD_O

  6917. TARGET_EXEC=$target_exec $target_exec_args

  6918. TARGET_PATH=$target_path

  6919. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6920. CFLAGS-ffplay=${sdl2_cflags}

  6921. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6922. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6923. EXTRALIBS=$extralibs

  6924. COMPAT_OBJS=$compat_objs

  6925. INSTALL=$install

  6926. SLIBNAME=${SLIBNAME}

  6927. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6928. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6929. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6930. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6931. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6932. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6933. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6934. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6935. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6936. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6937. NOREDZONE_FLAGS=$noredzone_flags

  6938. LIBFUZZER_PATH=$libfuzzer_path

  6939. IGNORE_TESTS=$ignore_tests

  6940. EOF

  6941. 

  6942. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6943. 

  6944. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6945.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  6946. done

  6947. 

  6948. cat > $TMPH <<EOF

  6949. /* Automatically generated by configure - do not modify! */

  6950. #ifndef FFMPEG_CONFIG_H

  6951. #define FFMPEG_CONFIG_H

  6952. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6953. #define FFMPEG_LICENSE "$(c_escape $license)"

  6954. #define CONFIG_THIS_YEAR 2018

  6955. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6956. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6957. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6958. #define av_restrict $_restrict

  6959. #define EXTERN_PREFIX "${extern_prefix}"

  6960. #define EXTERN_ASM ${extern_prefix}

  6961. #define BUILDSUF "$build_suffix"

  6962. #define SLIBSUF "$SLIBSUF"

  6963. #define HAVE_MMX2 HAVE_MMXEXT

  6964. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6965. EOF

  6966. 

  6967. test -n "$assert_level" &&

  6968.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6969. 

  6970. test -n "$malloc_prefix" &&

  6971.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6972. 

  6973. if enabled x86asm; then

  6974.     append config_files $TMPASM

  6975.     cat > $TMPASM <<EOF

  6976. ; Automatically generated by configure - do not modify!

  6977. EOF

  6978. fi

  6979. 

  6980. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6981. 

  6982. 

  6983. mkdir -p doc

  6984. mkdir -p tests

  6985. mkdir -p tests/api

  6986. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6987. 

  6988. print_config ARCH_   "$config_files" $ARCH_LIST

  6989. print_config HAVE_   "$config_files" $HAVE_LIST

  6990. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6991.                                      $CONFIG_EXTRA      \

  6992.                                      $ALL_COMPONENTS    \

  6993. 

  6994. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6995. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6996. 

  6997. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6998. cp_if_changed $TMPH config.h

  6999. touch ffbuild/.config

  7000. 

  7001. enabled x86asm && cp_if_changed $TMPASM config.asm

  7002. 

  7003. cat > $TMPH <<EOF

  7004. /* Generated by ffmpeg configure */

  7005. #ifndef AVUTIL_AVCONFIG_H

  7006. #define AVUTIL_AVCONFIG_H

  7007. EOF

  7008. 

  7009. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7010. 

  7011. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7012. 

  7013. cp_if_changed $TMPH libavutil/avconfig.h

  7014. 

  7015. # generate the lists of enabled components

  7016. print_enabled_components(){

  7017.     file=$1

  7018.     struct_name=$2

  7019.     name=$3

  7020.     shift 3

  7021.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7022.     for c in $*; do

  7023.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  7024.     done

  7025.     echo "    NULL };" >> $TMPH

  7026.     cp_if_changed $TMPH $file

  7027. }

  7028. 

  7029. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7030. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7031. 

  7032. # Settings for pkg-config files

  7033. 

  7034. cat > $TMPH <<EOF

  7035. # Automatically generated by configure - do not modify!

  7036. shared=$shared

  7037. build_suffix=$build_suffix

  7038. prefix=$prefix

  7039. libdir=$libdir

  7040. incdir=$incdir

  7041. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7042. source_path=${source_path}

  7043. LIBPREF=${LIBPREF}

  7044. LIBSUF=${LIBSUF}

  7045. extralibs_avutil="$avutil_extralibs"

  7046. extralibs_avcodec="$avcodec_extralibs"

  7047. extralibs_avformat="$avformat_extralibs"

  7048. extralibs_avdevice="$avdevice_extralibs"

  7049. extralibs_avfilter="$avfilter_extralibs"

  7050. extralibs_avresample="$avresample_extralibs"

  7051. extralibs_postproc="$postproc_extralibs"

  7052. extralibs_swscale="$swscale_extralibs"

  7053. extralibs_swresample="$swresample_extralibs"

  7054. EOF

  7055. 

  7056. for lib in $LIBRARY_LIST; do

  7057.     lib_deps="$(eval echo \$${lib}_deps)"

  7058.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7059. done

  7060. 

  7061. cp_if_changed $TMPH ffbuild/config.sh