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FFmpeg
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FFmpeg/configure

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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119.   --disable-ffserver       disable ffserver build

  120. 

  121. Documentation options:

  122.   --disable-doc            do not build documentation

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

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

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

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

  127. 

  128. Component options:

  129.   --disable-avdevice       disable libavdevice build

  130.   --disable-avcodec        disable libavcodec build

  131.   --disable-avformat       disable libavformat build

  132.   --disable-swresample     disable libswresample build

  133.   --disable-swscale        disable libswscale build

  134.   --disable-postproc       disable libpostproc build

  135.   --disable-avfilter       disable libavfilter build

  136.   --enable-avresample      enable libavresample build [no]

  137.   --disable-pthreads       disable pthreads [autodetect]

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

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

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

  141.   --disable-dct            disable DCT code

  142.   --disable-dwt            disable DWT code

  143.   --disable-error-resilience disable error resilience code

  144.   --disable-lsp            disable LSP code

  145.   --disable-lzo            disable LZO decoder code

  146.   --disable-mdct           disable MDCT code

  147.   --disable-rdft           disable RDFT code

  148.   --disable-fft            disable FFT code

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

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

  151. 

  152. Individual component options:

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

  154.   --disable-encoder=NAME   disable encoder NAME

  155.   --enable-encoder=NAME    enable encoder NAME

  156.   --disable-encoders       disable all encoders

  157.   --disable-decoder=NAME   disable decoder NAME

  158.   --enable-decoder=NAME    enable decoder NAME

  159.   --disable-decoders       disable all decoders

  160.   --disable-hwaccel=NAME   disable hwaccel NAME

  161.   --enable-hwaccel=NAME    enable hwaccel NAME

  162.   --disable-hwaccels       disable all hwaccels

  163.   --disable-muxer=NAME     disable muxer NAME

  164.   --enable-muxer=NAME      enable muxer NAME

  165.   --disable-muxers         disable all muxers

  166.   --disable-demuxer=NAME   disable demuxer NAME

  167.   --enable-demuxer=NAME    enable demuxer NAME

  168.   --disable-demuxers       disable all demuxers

  169.   --enable-parser=NAME     enable parser NAME

  170.   --disable-parser=NAME    disable parser NAME

  171.   --disable-parsers        disable all parsers

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

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

  174.   --disable-bsfs           disable all bitstream filters

  175.   --enable-protocol=NAME   enable protocol NAME

  176.   --disable-protocol=NAME  disable protocol NAME

  177.   --disable-protocols      disable all protocols

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

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

  180.   --disable-indevs         disable input devices

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

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

  183.   --disable-outdevs        disable output devices

  184.   --disable-devices        disable all devices

  185.   --enable-filter=NAME     enable filter NAME

  186.   --disable-filter=NAME    disable filter NAME

  187.   --disable-filters        disable all filters

  188.   --disable-v4l2_m2m       disable V4L2 mem2mem code [autodetect]

  189. 

  190. External library support:

  191. 

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

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

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

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

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

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

  198. 

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

  200.   libraries must be explicitly enabled.

  201. 

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

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

  204. 

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

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

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

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

  209.   --disable-bzlib          disable bzlib [autodetect]

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

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

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

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

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

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

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

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

  218.                            if openssl is not used [no]

  219.   --disable-iconv          disable iconv [autodetect]

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

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

  222.   --enable-libass          enable libass subtitles rendering,

  223.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  230.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  262.   --enable-libtheora       enable Theora encoding via libtheora [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.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

  292.   --enable-opencl          enable OpenCL code

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

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

  295.                            if gnutls is not used [no]

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

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

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

  299.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  302.   --disable-xlib           disable xlib [autodetect]

  303.   --disable-zlib           disable zlib [autodetect]

  304. 

  305.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  323. 

  324. Toolchain options:

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

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

  327.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  368.   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]

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

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

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

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

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

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

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

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

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

  378. 

  379. Advanced options (experts only):

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

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

  382.   --disable-symver         disable symbol versioning

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

  384.   --disable-safe-bitstream-reader

  385.                            disable buffer boundary checking in bitreaders

  386.                            (faster, but may crash)

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

  388. 

  389. Optimization options (experts only):

  390.   --disable-asm            disable all assembly optimizations

  391.   --disable-altivec        disable AltiVec optimizations

  392.   --disable-vsx            disable VSX optimizations

  393.   --disable-power8         disable POWER8 optimizations

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

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

  396.   --disable-mmx            disable MMX optimizations

  397.   --disable-mmxext         disable MMXEXT optimizations

  398.   --disable-sse            disable SSE optimizations

  399.   --disable-sse2           disable SSE2 optimizations

  400.   --disable-sse3           disable SSE3 optimizations

  401.   --disable-ssse3          disable SSSE3 optimizations

  402.   --disable-sse4           disable SSE4 optimizations

  403.   --disable-sse42          disable SSE4.2 optimizations

  404.   --disable-avx            disable AVX optimizations

  405.   --disable-xop            disable XOP optimizations

  406.   --disable-fma3           disable FMA3 optimizations

  407.   --disable-fma4           disable FMA4 optimizations

  408.   --disable-avx2           disable AVX2 optimizations

  409.   --disable-aesni          disable AESNI optimizations

  410.   --disable-armv5te        disable armv5te optimizations

  411.   --disable-armv6          disable armv6 optimizations

  412.   --disable-armv6t2        disable armv6t2 optimizations

  413.   --disable-vfp            disable VFP optimizations

  414.   --disable-neon           disable NEON optimizations

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

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

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

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

  419.   --disable-msa            disable MSA optimizations

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

  421.   --disable-mmi            disable Loongson SIMD optimizations

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

  423. 

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

  425.   --disable-debug          disable debugging symbols

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

  427.   --disable-optimizations  disable compiler optimizations

  428.   --enable-extra-warnings  enable more compiler warnings

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

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

  431.                            2 causes a slowdown at runtime.

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

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

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

  435.                            Cannot be combined with --target-exec

  436.   --enable-ftrapv          Trap arithmetic overflows

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

  438.                            \$FATE_SAMPLES at make invocation time.

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

  440.                            used only for debugging purposes)

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

  442.                            should be used only for debugging purposes)

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

  444.   --disable-random

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

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

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

  448.                            (group) and PROB the probability associated with

  449.                            NAME (default 0.5).

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

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

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

  453.   --enable-osfuzz          Enable building fuzzer tool

  454.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  458. 

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

  460. EOF

  461.   exit 0

  462. }

  463. 

  464. quotes='""'

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

  466.     ncolors=$(tput colors)

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

  468.         bold_color=$(tput bold)

  469.         warn_color=$(tput setaf 3)

  470.         error_color=$(tput setaf 1)

  471.         reset_color=$(tput sgr0)

  472.     fi

  473.     # 72 used instead of 80 since that's the default of pr

  474.     ncols=$(tput cols)

  475. fi

  476. : ${ncols:=72}

  477. 

  478. log(){

  479.     echo "$@" >> $logfile

  480. }

  481. 

  482. log_file(){

  483.     log BEGIN $1

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

  485.     log END $1

  486. }

  487. 

  488. warn(){

  489.     log "WARNING: $*"

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

  491. }

  492. 

  493. die(){

  494.     log "$@"

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

  496.     cat <<EOF

  497. 

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

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

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

  501. EOF

  502.     if disabled logging; then

  503.         cat <<EOF

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

  505. include the log this produces with your report.

  506. EOF

  507.     else

  508.         cat <<EOF

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

  510. solve the problem.

  511. EOF

  512.     fi

  513.     exit 1

  514. }

  515. 

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

  517. toupper(){

  518.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  519. }

  520. 

  521. tolower(){

  522.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  523. }

  524. 

  525. c_escape(){

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

  527. }

  528. 

  529. sh_quote(){

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

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

  532.     echo "$v"

  533. }

  534. 

  535. cleanws(){

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

  537. }

  538. 

  539. filter(){

  540.     pat=$1

  541.     shift

  542.     for v; do

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

  544.     done

  545. }

  546. 

  547. filter_out(){

  548.     pat=$1

  549.     shift

  550.     for v; do

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

  552.     done

  553. }

  554. 

  555. map(){

  556.     m=$1

  557.     shift

  558.     for v; do eval $m; done

  559. }

  560. 

  561. add_suffix(){

  562.     suffix=$1

  563.     shift

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

  565. }

  566. 

  567. set_all(){

  568.     value=$1

  569.     shift

  570.     for var in $*; do

  571.         eval $var=$value

  572.     done

  573. }

  574. 

  575. set_weak(){

  576.     value=$1

  577.     shift

  578.     for var; do

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

  580.     done

  581. }

  582. 

  583. sanitize_var_name(){

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

  585. }

  586. 

  587. set_sanitized(){

  588.     var=$1

  589.     shift

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

  591. }

  592. 

  593. get_sanitized(){

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

  595. }

  596. 

  597. pushvar(){

  598.     for pvar in $*; do

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

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

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

  602.     done

  603. }

  604. 

  605. popvar(){

  606.     for pvar in $*; do

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

  608.         test $level = 0 && continue

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

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

  611.         eval ${pvar}_level=$level

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

  613.     done

  614. }

  615. 

  616. request(){

  617.     for var in $*; do

  618.         eval ${var}_requested=yes

  619.         eval $var=

  620.     done

  621. }

  622. 

  623. enable(){

  624.     set_all yes $*

  625. }

  626. 

  627. disable(){

  628.     set_all no $*

  629. }

  630. 

  631. enable_weak(){

  632.     set_weak yes $*

  633. }

  634. 

  635. disable_weak(){

  636.     set_weak no $*

  637. }

  638. 

  639. enable_sanitized(){

  640.     for var; do

  641.         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')

  642.     done

  643. }

  644. 

  645. disable_sanitized(){

  646.     for var; do

  647.         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')

  648.     done

  649. }

  650. 

  651. do_enable_deep(){

  652.     for var; do

  653.         enabled $var && continue

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

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

  656.         pushvar var sgs

  657.         enable_deep $sel

  658.         popvar sgs

  659.         enable_deep_weak $sgs

  660.         popvar var

  661.     done

  662. }

  663. 

  664. enable_deep(){

  665.     do_enable_deep $*

  666.     enable $*

  667. }

  668. 

  669. enable_deep_weak(){

  670.     for var; do

  671.         disabled $var && continue

  672.         pushvar var

  673.         do_enable_deep $var

  674.         popvar var

  675.         enable_weak $var

  676.     done

  677. }

  678. 

  679. requested(){

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

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

  682. }

  683. 

  684. enabled(){

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

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

  687. }

  688. 

  689. disabled(){

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

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

  692. }

  693. 

  694. enabled_all(){

  695.     for opt; do

  696.         enabled $opt || return 1

  697.     done

  698. }

  699. 

  700. disabled_all(){

  701.     for opt; do

  702.         disabled $opt || return 1

  703.     done

  704. }

  705. 

  706. enabled_any(){

  707.     for opt; do

  708.         enabled $opt && return 0

  709.     done

  710. }

  711. 

  712. disabled_any(){

  713.     for opt; do

  714.         disabled $opt && return 0

  715.     done

  716.     return 1

  717. }

  718. 

  719. set_default(){

  720.     for opt; do

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

  722.     done

  723. }

  724. 

  725. is_in(){

  726.     value=$1

  727.     shift

  728.     for var in $*; do

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

  730.     done

  731.     return 1

  732. }

  733. 

  734. check_deps(){

  735.     for cfg; do

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

  737.         disabled ${cfg}_checking && continue

  738.         enable ${cfg}_checking

  739. 

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

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

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

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

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

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

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

  747. 

  748.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  750.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  751. 

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

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

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

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

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

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

  758. 

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

  760. 

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

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

  763.             is_in $dep $LIBRARY_LIST && continue

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

  765.         done

  766. 

  767.         disable ${cfg}_checking

  768.     done

  769. }

  770. 

  771. print_config(){

  772.     pfx=$1

  773.     files=$2

  774.     shift 2

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

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

  777.         {

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

  779.             v = \$2;

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

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

  782.             for (f in files) {

  783.                 file = files[f];

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

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

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

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

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

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

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

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

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

  793.                     yesno = \$2;

  794.                     c2 = tolower(c);

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

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

  797.                 }

  798.             }

  799.         }"

  800. }

  801. 

  802. print_enabled(){

  803.     suf=$1

  804.     shift

  805.     for v; do

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

  807.     done

  808. }

  809. 

  810. append(){

  811.     var=$1

  812.     shift

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

  814. }

  815. 

  816. prepend(){

  817.     var=$1

  818.     shift

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

  820. }

  821. 

  822. unique(){

  823.     var=$1

  824.     uniq_list=""

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

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

  827.     done

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

  829. }

  830. 

  831. resolve(){

  832.     var=$1

  833.     tmpvar=

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

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

  836.     done

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

  838. }

  839. 

  840. add_cppflags(){

  841.     append CPPFLAGS "$@"

  842. }

  843. 

  844. add_cflags(){

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

  846. }

  847. 

  848. add_cflags_headers(){

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

  850. }

  851. 

  852. add_cxxflags(){

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

  854. }

  855. 

  856. add_asflags(){

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

  858. }

  859. 

  860. add_objcflags(){

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

  862. }

  863. 

  864. add_ldflags(){

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

  866. }

  867. 

  868. add_ldexeflags(){

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

  870. }

  871. 

  872. add_ldlibflags(){

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

  874. }

  875. 

  876. add_stripflags(){

  877.     append ASMSTRIPFLAGS "$@"

  878. }

  879. 

  880. add_extralibs(){

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

  882. }

  883. 

  884. add_host_cppflags(){

  885.     append host_cppflags "$@"

  886. }

  887. 

  888. add_host_cflags(){

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

  890. }

  891. 

  892. add_host_ldflags(){

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

  894. }

  895. 

  896. add_compat(){

  897.     append compat_objs $1

  898.     shift

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

  900. }

  901. 

  902. check_cmd(){

  903.     log "$@"

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

  905. }

  906. 

  907. check_stat(){

  908.     log check_stat "$@"

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

  910. }

  911. 

  912. cc_o(){

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

  914. }

  915. 

  916. cc_e(){

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

  918. }

  919. 

  920. check_cc(){

  921.     log check_cc "$@"

  922.     cat > $TMPC

  923.     log_file $TMPC

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

  925. }

  926. 

  927. check_cxx(){

  928.     log check_cxx "$@"

  929.     cat > $TMPCPP

  930.     log_file $TMPCPP

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

  932. }

  933. 

  934. check_objcc(){

  935.     log check_objcc "$@"

  936.     cat > $TMPM

  937.     log_file $TMPM

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

  939. }

  940. 

  941. check_cpp(){

  942.     log check_cpp "$@"

  943.     cat > $TMPC

  944.     log_file $TMPC

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

  946. }

  947. 

  948. as_o(){

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

  950. }

  951. 

  952. check_as(){

  953.     log check_as "$@"

  954.     cat > $TMPS

  955.     log_file $TMPS

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

  957. }

  958. 

  959. check_inline_asm(){

  960.     log check_inline_asm "$@"

  961.     name="$1"

  962.     code="$2"

  963.     shift 2

  964.     disable $name

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

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

  967. EOF

  968. }

  969. 

  970. check_inline_asm_flags(){

  971.     log check_inline_asm_flags "$@"

  972.     name="$1"

  973.     code="$2"

  974.     flags=''

  975.     shift 2

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

  977.       append flags $1

  978.       shift

  979.     done;

  980.     disable $name

  981.     cat > $TMPC <<EOF

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

  983. EOF

  984.     log_file $TMPC

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

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

  987. }

  988. 

  989. check_insn(){

  990.     log check_insn "$@"

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

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

  993. }

  994. 

  995. check_x86asm(){

  996.     log check_x86asm "$@"

  997.     echo "$1" > $TMPS

  998.     log_file $TMPS

  999.     shift 1

  1000.     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS

  1001. }

  1002. 

  1003. ld_o(){

  1004.     eval printf '%s\\n' $LD_O

  1005. }

  1006. 

  1007. check_ld(){

  1008.     log check_ld "$@"

  1009.     type=$1

  1010.     shift 1

  1011.     flags=$(filter_out '-l*|*.so' $@)

  1012.     libs=$(filter '-l*|*.so' $@)

  1013.     check_$type $($cflags_filter $flags) || return

  1014.     flags=$($ldflags_filter $flags)

  1015.     libs=$($ldflags_filter $libs)

  1016.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1017. }

  1018. 

  1019. print_include(){

  1020.     hdr=$1

  1021.     test "${hdr%.h}" = "${hdr}" &&

  1022.         echo "#include $hdr"    ||

  1023.         echo "#include <$hdr>"

  1024. }

  1025. 

  1026. check_code(){

  1027.     log check_code "$@"

  1028.     check=$1

  1029.     headers=$2

  1030.     code=$3

  1031.     shift 3

  1032.     {

  1033.         for hdr in $headers; do

  1034.             print_include $hdr

  1035.         done

  1036.         echo "int main(void) { $code; return 0; }"

  1037.     } | check_$check "$@"

  1038. }

  1039. 

  1040. check_cppflags(){

  1041.     log check_cppflags "$@"

  1042.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1043. #include <stdlib.h>

  1044. EOF

  1045. }

  1046. 

  1047. test_cflags(){

  1048.     log test_cflags "$@"

  1049.     set -- $($cflags_filter "$@")

  1050.     check_cc "$@" <<EOF

  1051. int x;

  1052. EOF

  1053. }

  1054. 

  1055. check_cflags(){

  1056.     log check_cflags "$@"

  1057.     test_cflags "$@" && add_cflags "$@"

  1058. }

  1059. 

  1060. check_cxxflags(){

  1061.     log check_cxxflags "$@"

  1062.     set -- $($cflags_filter "$@")

  1063.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1064. int x;

  1065. EOF

  1066. }

  1067. 

  1068. test_objcflags(){

  1069.     log test_objcflags "$@"

  1070.     set -- $($objcflags_filter "$@")

  1071.     check_objcc "$@" <<EOF

  1072. int x;

  1073. EOF

  1074. }

  1075. 

  1076. check_objcflags(){

  1077.     log check_objcflags "$@"

  1078.     test_objcflags "$@" && add_objcflags "$@"

  1079. }

  1080. 

  1081. test_ldflags(){

  1082.     log test_ldflags "$@"

  1083.     check_ld "cc" "$@" <<EOF

  1084. int main(void){ return 0; }

  1085. EOF

  1086. }

  1087. 

  1088. check_ldflags(){

  1089.     log check_ldflags "$@"

  1090.     test_ldflags "$@" && add_ldflags "$@"

  1091. }

  1092. 

  1093. test_stripflags(){

  1094.     log test_stripflags "$@"

  1095.     # call check_cc to get a fresh TMPO

  1096.     check_cc <<EOF

  1097. int main(void) { return 0; }

  1098. EOF

  1099.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1100. }

  1101. 

  1102. check_stripflags(){

  1103.     log check_stripflags "$@"

  1104.     test_stripflags "$@" && add_stripflags "$@"

  1105. }

  1106. 

  1107. check_header(){

  1108.     log check_header "$@"

  1109.     header=$1

  1110.     shift

  1111.     disable_sanitized $header

  1112.     check_cpp "$@" <<EOF && enable_sanitized $header

  1113. #include <$header>

  1114. int x;

  1115. EOF

  1116. }

  1117. 

  1118. check_header_objcc(){

  1119.     log check_header_objcc "$@"

  1120.     rm -f -- "$TMPO"

  1121.     header=$1

  1122.     shift

  1123.     disable_sanitized $header

  1124.     {

  1125.        echo "#include <$header>"

  1126.        echo "int main(void) { return 0; }"

  1127.     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header

  1128. }

  1129. 

  1130. check_apple_framework(){

  1131.     log check_apple_framework "$@"

  1132.     framework="$1"

  1133.     name="$(tolower $framework)"

  1134.     header="${framework}/${framework}.h"

  1135.     disable $name

  1136.     check_header_objcc $header &&

  1137.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1138. }

  1139. 

  1140. check_func(){

  1141.     log check_func "$@"

  1142.     func=$1

  1143.     shift

  1144.     disable $func

  1145.     check_ld "cc" "$@" <<EOF && enable $func

  1146. extern int $func();

  1147. int main(void){ $func(); }

  1148. EOF

  1149. }

  1150. 

  1151. check_complexfunc(){

  1152.     log check_complexfunc "$@"

  1153.     func=$1

  1154.     narg=$2

  1155.     shift 2

  1156.     test $narg = 2 && args="f, g" || args="f * I"

  1157.     disable $func

  1158.     check_ld "cc" "$@" <<EOF && enable $func

  1159. #include <complex.h>

  1160. #include <math.h>

  1161. float foo(complex float f, complex float g) { return $func($args); }

  1162. int main(void){ return (int) foo; }

  1163. EOF

  1164. }

  1165. 

  1166. check_mathfunc(){

  1167.     log check_mathfunc "$@"

  1168.     func=$1

  1169.     narg=$2

  1170.     shift 2

  1171.     test $narg = 2 && args="f, g" || args="f"

  1172.     disable $func

  1173.     check_ld "cc" "$@" <<EOF && enable $func

  1174. #include <math.h>

  1175. float foo(float f, float g) { return $func($args); }

  1176. int main(void){ return (int) foo; }

  1177. EOF

  1178. }

  1179. 

  1180. check_func_headers(){

  1181.     log check_func_headers "$@"

  1182.     headers=$1

  1183.     funcs=$2

  1184.     shift 2

  1185.     {

  1186.         for hdr in $headers; do

  1187.             print_include $hdr

  1188.         done

  1189.         echo "#include <stdint.h>"

  1190.         for func in $funcs; do

  1191.             echo "long check_$func(void) { return (long) $func; }"

  1192.         done

  1193.         echo "int main(void) { int ret = 0;"

  1194.         # LTO could optimize out the test functions without this

  1195.         for func in $funcs; do

  1196.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1197.         done

  1198.         echo "return ret; }"

  1199.     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1200. }

  1201. 

  1202. check_class_headers_cpp(){

  1203.     log check_class_headers_cpp "$@"

  1204.     headers=$1

  1205.     classes=$2

  1206.     shift 2

  1207.     {

  1208.         for hdr in $headers; do

  1209.             echo "#include <$hdr>"

  1210.         done

  1211.         echo "int main(void) { "

  1212.         i=1

  1213.         for class in $classes; do

  1214.             echo "$class obj$i;"

  1215.             i=$(expr $i + 1)

  1216.         done

  1217.         echo "return 0; }"

  1218.     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1219. }

  1220. 

  1221. check_cpp_condition(){

  1222.     log check_cpp_condition "$@"

  1223.     header=$1

  1224.     condition=$2

  1225.     shift 2

  1226.     check_cpp "$@" <<EOF

  1227. #include <$header>

  1228. #if !($condition)

  1229. #error "unsatisfied condition: $condition"

  1230. #endif

  1231. EOF

  1232. }

  1233. 

  1234. test_cflags_cc(){

  1235.     log test_cflags_cc "$@"

  1236.     flags=$1

  1237.     header=$2

  1238.     condition=$3

  1239.     shift 3

  1240.     set -- $($cflags_filter "$flags")

  1241.     check_cc "$@" <<EOF

  1242. #include <$header>

  1243. #if !($condition)

  1244. #error "unsatisfied condition: $condition"

  1245. #endif

  1246. EOF

  1247. }

  1248. 

  1249. check_lib(){

  1250.     log check_lib "$@"

  1251.     name="$1"

  1252.     headers="$2"

  1253.     funcs="$3"

  1254.     shift 3

  1255.     disable $name

  1256.     check_func_headers "$headers" "$funcs" "$@" &&

  1257.         enable $name && eval ${name}_extralibs="\$@"

  1258. }

  1259. 

  1260. check_lib_cpp(){

  1261.     log check_lib_cpp "$@"

  1262.     name="$1"

  1263.     headers="$2"

  1264.     classes="$3"

  1265.     shift 3

  1266.     disable $name

  1267.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1268.         enable $name && eval ${name}_extralibs="\$@"

  1269. }

  1270. 

  1271. check_pkg_config(){

  1272.     log check_pkg_config "$@"

  1273.     name="$1"

  1274.     pkg_version="$2"

  1275.     pkg="${2%% *}"

  1276.     headers="$3"

  1277.     funcs="$4"

  1278.     shift 4

  1279.     disable $name

  1280.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1281.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1282.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1283.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1284.         enable $name &&

  1285.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1286.         set_sanitized "${name}_extralibs" $pkg_libs

  1287. }

  1288. 

  1289. check_exec(){

  1290.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1291. }

  1292. 

  1293. check_exec_crash(){

  1294.     log check_exec_crash "$@"

  1295.     code=$(cat)

  1296. 

  1297.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1298.     # are safe but may not be available everywhere.  Thus we use

  1299.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1300.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1301.     # is not defined by standard C so it is used conditionally.

  1302. 

  1303.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1304. #include <signal.h>

  1305. static void sighandler(int sig){

  1306.     raise(SIGTERM);

  1307. }

  1308. int foo(void){

  1309.     $code

  1310. }

  1311. int (*func_ptr)(void) = foo;

  1312. int main(void){

  1313.     signal(SIGILL, sighandler);

  1314.     signal(SIGFPE, sighandler);

  1315.     signal(SIGSEGV, sighandler);

  1316. #ifdef SIGBUS

  1317.     signal(SIGBUS, sighandler);

  1318. #endif

  1319.     return func_ptr();

  1320. }

  1321. EOF

  1322. }

  1323. 

  1324. check_type(){

  1325.     log check_type "$@"

  1326.     headers=$1

  1327.     type=$2

  1328.     shift 2

  1329.     disable_sanitized "$type"

  1330.     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1331. }

  1332. 

  1333. check_struct(){

  1334.     log check_struct "$@"

  1335.     headers=$1

  1336.     struct=$2

  1337.     member=$3

  1338.     shift 3

  1339.     disable_sanitized "${struct}_${member}"

  1340.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1341.         enable_sanitized "${struct}_${member}"

  1342. }

  1343. 

  1344. check_builtin(){

  1345.     log check_builtin "$@"

  1346.     name=$1

  1347.     headers=$2

  1348.     builtin=$3

  1349.     shift 3

  1350.     disable "$name"

  1351.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1352. }

  1353. 

  1354. check_compile_assert(){

  1355.     log check_compile_assert "$@"

  1356.     name=$1

  1357.     headers=$2

  1358.     condition=$3

  1359.     shift 3

  1360.     disable "$name"

  1361.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1362. }

  1363. 

  1364. require(){

  1365.     log require "$@"

  1366.     name_version="$1"

  1367.     name="${1%% *}"

  1368.     headers="$2"

  1369.     func="$3"

  1370.     shift 3

  1371.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1372. }

  1373. 

  1374. require_cpp(){

  1375.     name="$1"

  1376.     headers="$2"

  1377.     classes="$3"

  1378.     shift 3

  1379.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1380. }

  1381. 

  1382. require_header(){

  1383.     log require "$@"

  1384.     header="$1"

  1385.     shift

  1386.     check_header "$header" "$@" || die "ERROR: $header header not found"

  1387. }

  1388. 

  1389. require_cpp_condition(){

  1390.     log require "$@"

  1391.     header="$1"

  1392.     condition="$2"

  1393.     shift 2

  1394.     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"

  1395. }

  1396. 

  1397. use_pkg_config(){

  1398.     log use_pkg_config "$@"

  1399.     name="$1"

  1400.     check_pkg_config "$@" || return 1

  1401.     add_cflags    $(get_sanitized "${name}_cflags")

  1402. }

  1403. 

  1404. require_pkg_config(){

  1405.     log require_pkg_config "$@"

  1406.     pkg_version="$2"

  1407.     use_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1408. }

  1409. 

  1410. hostcc_e(){

  1411.     eval printf '%s\\n' $HOSTCC_E

  1412. }

  1413. 

  1414. hostcc_o(){

  1415.     eval printf '%s\\n' $HOSTCC_O

  1416. }

  1417. 

  1418. check_host_cc(){

  1419.     log check_host_cc "$@"

  1420.     cat > $TMPC

  1421.     log_file $TMPC

  1422.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1423. }

  1424. 

  1425. check_host_cpp(){

  1426.     log check_host_cpp "$@"

  1427.     cat > $TMPC

  1428.     log_file $TMPC

  1429.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1430. }

  1431. 

  1432. check_host_cppflags(){

  1433.     log check_host_cppflags "$@"

  1434.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1435. #include <stdlib.h>

  1436. EOF

  1437. }

  1438. 

  1439. check_host_cflags(){

  1440.     log check_host_cflags "$@"

  1441.     set -- $($host_cflags_filter "$@")

  1442.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1443. int x;

  1444. EOF

  1445. }

  1446. 

  1447. check_host_cpp_condition(){

  1448.     log check_host_cpp_condition "$@"

  1449.     header=$1

  1450.     condition=$2

  1451.     shift 2

  1452.     check_host_cpp "$@" <<EOF

  1453. #include <$header>

  1454. #if !($condition)

  1455. #error "unsatisfied condition: $condition"

  1456. #endif

  1457. EOF

  1458. }

  1459. 

  1460. cp_if_changed(){

  1461.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1462.     mkdir -p "$(dirname $2)"

  1463.     cp -f "$1" "$2"

  1464. }

  1465. 

  1466. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1467. # system-dependent things.

  1468. 

  1469. AVCODEC_COMPONENTS="

  1470.     bsfs

  1471.     decoders

  1472.     encoders

  1473.     hwaccels

  1474.     parsers

  1475. "

  1476. 

  1477. AVDEVICE_COMPONENTS="

  1478.     indevs

  1479.     outdevs

  1480. "

  1481. 

  1482. AVFILTER_COMPONENTS="

  1483.     filters

  1484. "

  1485. 

  1486. AVFORMAT_COMPONENTS="

  1487.     demuxers

  1488.     muxers

  1489.     protocols

  1490. "

  1491. 

  1492. AVRESAMPLE_COMPONENTS=""

  1493. 

  1494. AVUTIL_COMPONENTS=""

  1495. 

  1496. COMPONENT_LIST="

  1497.     $AVCODEC_COMPONENTS

  1498.     $AVDEVICE_COMPONENTS

  1499.     $AVFILTER_COMPONENTS

  1500.     $AVFORMAT_COMPONENTS

  1501.     $AVRESAMPLE_COMPONENTS

  1502.     $AVUTIL_COMPONENTS

  1503. "

  1504. 

  1505. EXAMPLE_LIST="

  1506.     avio_dir_cmd_example

  1507.     avio_reading_example

  1508.     decode_audio_example

  1509.     decode_video_example

  1510.     demuxing_decoding_example

  1511.     encode_audio_example

  1512.     encode_video_example

  1513.     extract_mvs_example

  1514.     filter_audio_example

  1515.     filtering_audio_example

  1516.     filtering_video_example

  1517.     http_multiclient_example

  1518.     hw_decode_example

  1519.     metadata_example

  1520.     muxing_example

  1521.     qsvdec_example

  1522.     remuxing_example

  1523.     resampling_audio_example

  1524.     scaling_video_example

  1525.     transcode_aac_example

  1526.     transcoding_example

  1527. "

  1528. 

  1529. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1530.     alsa

  1531.     appkit

  1532.     avfoundation

  1533.     bzlib

  1534.     coreimage

  1535.     iconv

  1536.     libxcb

  1537.     libxcb_shm

  1538.     libxcb_shape

  1539.     libxcb_xfixes

  1540.     lzma

  1541.     schannel

  1542.     sdl2

  1543.     securetransport

  1544.     sndio

  1545.     xlib

  1546.     zlib

  1547. "

  1548. 

  1549. EXTERNAL_LIBRARY_GPL_LIST="

  1550.     avisynth

  1551.     frei0r

  1552.     libcdio

  1553.     librubberband

  1554.     libvidstab

  1555.     libx264

  1556.     libx265

  1557.     libxavs

  1558.     libxvid

  1559. "

  1560. 

  1561. EXTERNAL_LIBRARY_NONFREE_LIST="

  1562.     decklink

  1563.     libndi_newtek

  1564.     libfdk_aac

  1565.     openssl

  1566. "

  1567. 

  1568. EXTERNAL_LIBRARY_VERSION3_LIST="

  1569.     gmp

  1570.     libopencore_amrnb

  1571.     libopencore_amrwb

  1572.     libvo_amrwbenc

  1573.     rkmpp

  1574. "

  1575. 

  1576. EXTERNAL_LIBRARY_GPLV3_LIST="

  1577.     libsmbclient

  1578. "

  1579. 

  1580. EXTERNAL_LIBRARY_LIST="

  1581.     $EXTERNAL_LIBRARY_GPL_LIST

  1582.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1583.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1584.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1585.     chromaprint

  1586.     gcrypt

  1587.     gnutls

  1588.     jni

  1589.     ladspa

  1590.     libass

  1591.     libbluray

  1592.     libbs2b

  1593.     libcaca

  1594.     libcelt

  1595.     libdc1394

  1596.     libdrm

  1597.     libflite

  1598.     libfontconfig

  1599.     libfreetype

  1600.     libfribidi

  1601.     libgme

  1602.     libgsm

  1603.     libiec61883

  1604.     libilbc

  1605.     libjack

  1606.     libkvazaar

  1607.     libmodplug

  1608.     libmp3lame

  1609.     libmysofa

  1610.     libopencv

  1611.     libopenh264

  1612.     libopenjpeg

  1613.     libopenmpt

  1614.     libopus

  1615.     libpulse

  1616.     librsvg

  1617.     librtmp

  1618.     libshine

  1619.     libsmbclient

  1620.     libsnappy

  1621.     libsoxr

  1622.     libspeex

  1623.     libssh

  1624.     libtesseract

  1625.     libtheora

  1626.     libtwolame

  1627.     libv4l2

  1628.     libvmaf

  1629.     libvorbis

  1630.     libvpx

  1631.     libwavpack

  1632.     libwebp

  1633.     libxml2

  1634.     libzimg

  1635.     libzmq

  1636.     libzvbi

  1637.     mediacodec

  1638.     openal

  1639.     opencl

  1640.     opengl

  1641. "

  1642. 

  1643. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1644.     audiotoolbox

  1645.     crystalhd

  1646.     cuda

  1647.     cuvid

  1648.     d3d11va

  1649.     dxva2

  1650.     nvenc

  1651.     vaapi

  1652.     vdpau

  1653.     videotoolbox

  1654.     v4l2_m2m

  1655.     xvmc

  1656. "

  1657. 

  1658. # catchall list of things that require external libs to link

  1659. EXTRALIBS_LIST="

  1660.     cpu_init

  1661.     cws2fws

  1662. "

  1663. 

  1664. HWACCEL_LIBRARY_NONFREE_LIST="

  1665.     cuda_sdk

  1666.     libnpp

  1667. "

  1668. 

  1669. HWACCEL_LIBRARY_LIST="

  1670.     $HWACCEL_LIBRARY_NONFREE_LIST

  1671.     libmfx

  1672.     mmal

  1673.     omx

  1674. "

  1675. 

  1676. DOCUMENT_LIST="

  1677.     doc

  1678.     htmlpages

  1679.     manpages

  1680.     podpages

  1681.     txtpages

  1682. "

  1683. 

  1684. FEATURE_LIST="

  1685.     ftrapv

  1686.     gray

  1687.     hardcoded_tables

  1688.     omx_rpi

  1689.     runtime_cpudetect

  1690.     safe_bitstream_reader

  1691.     shared

  1692.     small

  1693.     static

  1694.     swscale_alpha

  1695. "

  1696. 

  1697. LIBRARY_LIST="

  1698.     avcodec

  1699.     avdevice

  1700.     avfilter

  1701.     avformat

  1702.     avresample

  1703.     avutil

  1704.     postproc

  1705.     swresample

  1706.     swscale

  1707. "

  1708. 

  1709. LICENSE_LIST="

  1710.     gpl

  1711.     nonfree

  1712.     version3

  1713. "

  1714. 

  1715. PROGRAM_LIST="

  1716.     ffplay

  1717.     ffprobe

  1718.     ffserver

  1719.     ffmpeg

  1720. "

  1721. 

  1722. SUBSYSTEM_LIST="

  1723.     dct

  1724.     dwt

  1725.     error_resilience

  1726.     faan

  1727.     fast_unaligned

  1728.     fft

  1729.     lsp

  1730.     lzo

  1731.     mdct

  1732.     pixelutils

  1733.     network

  1734.     rdft

  1735. "

  1736. 

  1737. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1738. CONFIG_LIST="

  1739.     $DOCUMENT_LIST

  1740.     $EXAMPLE_LIST

  1741.     $EXTERNAL_LIBRARY_LIST

  1742.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1743.     $HWACCEL_LIBRARY_LIST

  1744.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1745.     $FEATURE_LIST

  1746.     $LICENSE_LIST

  1747.     $LIBRARY_LIST

  1748.     $PROGRAM_LIST

  1749.     $SUBSYSTEM_LIST

  1750.     autodetect

  1751.     fontconfig

  1752.     linux_perf

  1753.     memory_poisoning

  1754.     neon_clobber_test

  1755.     ossfuzz

  1756.     pic

  1757.     thumb

  1758.     valgrind_backtrace

  1759.     xmm_clobber_test

  1760.     $COMPONENT_LIST

  1761. "

  1762. 

  1763. THREADS_LIST="

  1764.     pthreads

  1765.     os2threads

  1766.     w32threads

  1767. "

  1768. 

  1769. ATOMICS_LIST="

  1770.     atomics_gcc

  1771.     atomics_suncc

  1772.     atomics_win32

  1773. "

  1774. 

  1775. AUTODETECT_LIBS="

  1776.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1777.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1778.     $THREADS_LIST

  1779. "

  1780. 

  1781. ARCH_LIST="

  1782.     aarch64

  1783.     alpha

  1784.     arm

  1785.     avr32

  1786.     avr32_ap

  1787.     avr32_uc

  1788.     bfin

  1789.     ia64

  1790.     m68k

  1791.     mips

  1792.     mips64

  1793.     parisc

  1794.     ppc

  1795.     ppc64

  1796.     s390

  1797.     sh4

  1798.     sparc

  1799.     sparc64

  1800.     tilegx

  1801.     tilepro

  1802.     tomi

  1803.     x86

  1804.     x86_32

  1805.     x86_64

  1806. "

  1807. 

  1808. ARCH_EXT_LIST_ARM="

  1809.     armv5te

  1810.     armv6

  1811.     armv6t2

  1812.     armv8

  1813.     neon

  1814.     vfp

  1815.     vfpv3

  1816.     setend

  1817. "

  1818. 

  1819. ARCH_EXT_LIST_MIPS="

  1820.     mipsfpu

  1821.     mips32r2

  1822.     mips32r5

  1823.     mips64r2

  1824.     mips32r6

  1825.     mips64r6

  1826.     mipsdsp

  1827.     mipsdspr2

  1828.     msa

  1829. "

  1830. 

  1831. ARCH_EXT_LIST_LOONGSON="

  1832.     loongson2

  1833.     loongson3

  1834.     mmi

  1835. "

  1836. 

  1837. ARCH_EXT_LIST_X86_SIMD="

  1838.     aesni

  1839.     amd3dnow

  1840.     amd3dnowext

  1841.     avx

  1842.     avx2

  1843.     fma3

  1844.     fma4

  1845.     mmx

  1846.     mmxext

  1847.     sse

  1848.     sse2

  1849.     sse3

  1850.     sse4

  1851.     sse42

  1852.     ssse3

  1853.     xop

  1854. "

  1855. 

  1856. ARCH_EXT_LIST_PPC="

  1857.     altivec

  1858.     dcbzl

  1859.     ldbrx

  1860.     power8

  1861.     ppc4xx

  1862.     vsx

  1863. "

  1864. 

  1865. ARCH_EXT_LIST_X86="

  1866.     $ARCH_EXT_LIST_X86_SIMD

  1867.     cpunop

  1868.     i686

  1869. "

  1870. 

  1871. ARCH_EXT_LIST="

  1872.     $ARCH_EXT_LIST_ARM

  1873.     $ARCH_EXT_LIST_PPC

  1874.     $ARCH_EXT_LIST_X86

  1875.     $ARCH_EXT_LIST_MIPS

  1876.     $ARCH_EXT_LIST_LOONGSON

  1877. "

  1878. 

  1879. ARCH_FEATURES="

  1880.     aligned_stack

  1881.     fast_64bit

  1882.     fast_clz

  1883.     fast_cmov

  1884.     local_aligned

  1885.     simd_align_16

  1886.     simd_align_32

  1887. "

  1888. 

  1889. BUILTIN_LIST="

  1890.     atomic_cas_ptr

  1891.     machine_rw_barrier

  1892.     MemoryBarrier

  1893.     mm_empty

  1894.     rdtsc

  1895.     sarestart

  1896.     sem_timedwait

  1897.     sync_val_compare_and_swap

  1898. "

  1899. HAVE_LIST_CMDLINE="

  1900.     inline_asm

  1901.     symver

  1902.     x86asm

  1903. "

  1904. 

  1905. HAVE_LIST_PUB="

  1906.     bigendian

  1907.     fast_unaligned

  1908. "

  1909. 

  1910. HEADERS_LIST="

  1911.     altivec_h

  1912.     arpa_inet_h

  1913.     asm_types_h

  1914.     cdio_paranoia_h

  1915.     cdio_paranoia_paranoia_h

  1916.     cuda_h

  1917.     d3d11_h

  1918.     dispatch_dispatch_h

  1919.     dev_bktr_ioctl_bt848_h

  1920.     dev_bktr_ioctl_meteor_h

  1921.     dev_ic_bt8xx_h

  1922.     dev_video_bktr_ioctl_bt848_h

  1923.     dev_video_meteor_ioctl_meteor_h

  1924.     direct_h

  1925.     dirent_h

  1926.     dlfcn_h

  1927.     dxgidebug_h

  1928.     dxva_h

  1929.     ES2_gl_h

  1930.     gsm_h

  1931.     io_h

  1932.     mach_mach_time_h

  1933.     machine_ioctl_bt848_h

  1934.     machine_ioctl_meteor_h

  1935.     malloc_h

  1936.     opencv2_core_core_c_h

  1937.     OpenGL_gl3_h

  1938.     poll_h

  1939.     soundcard_h

  1940.     stdatomic_h

  1941.     sys_mman_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_FUNCS="

  1999.     access

  2000.     aligned_malloc

  2001.     arc4random

  2002.     clock_gettime

  2003.     closesocket

  2004.     CommandLineToArgvW

  2005.     CoTaskMemFree

  2006.     CryptGenRandom

  2007.     fcntl

  2008.     flt_lim

  2009.     fork

  2010.     getaddrinfo

  2011.     gethrtime

  2012.     getopt

  2013.     GetProcessAffinityMask

  2014.     GetProcessMemoryInfo

  2015.     GetProcessTimes

  2016.     getrusage

  2017.     GetSystemTimeAsFileTime

  2018.     gettimeofday

  2019.     glob

  2020.     glXGetProcAddress

  2021.     gmtime_r

  2022.     inet_aton

  2023.     isatty

  2024.     kbhit

  2025.     LoadLibrary

  2026.     localtime_r

  2027.     lstat

  2028.     lzo1x_999_compress

  2029.     mach_absolute_time

  2030.     MapViewOfFile

  2031.     memalign

  2032.     mkstemp

  2033.     mmap

  2034.     mprotect

  2035.     nanosleep

  2036.     PeekNamedPipe

  2037.     posix_memalign

  2038.     pthread_cancel

  2039.     sched_getaffinity

  2040.     SetConsoleTextAttribute

  2041.     SetConsoleCtrlHandler

  2042.     setmode

  2043.     setrlimit

  2044.     Sleep

  2045.     strerror_r

  2046.     sysconf

  2047.     sysctl

  2048.     usleep

  2049.     UTGetOSTypeFromString

  2050.     VirtualAlloc

  2051.     wglGetProcAddress

  2052. "

  2053. 

  2054. TOOLCHAIN_FEATURES="

  2055.     as_arch_directive

  2056.     as_dn_directive

  2057.     as_fpu_directive

  2058.     as_func

  2059.     as_object_arch

  2060.     asm_mod_q

  2061.     attribute_may_alias

  2062.     attribute_packed

  2063.     blocks_extension

  2064.     ebp_available

  2065.     ebx_available

  2066.     gnu_as

  2067.     gnu_windres

  2068.     ibm_asm

  2069.     inline_asm_direct_symbol_refs

  2070.     inline_asm_labels

  2071.     inline_asm_nonlocal_labels

  2072.     pragma_deprecated

  2073.     rsync_contimeout

  2074.     symver_asm_label

  2075.     symver_gnu_asm

  2076.     vfp_args

  2077.     xform_asm

  2078.     xmm_clobbers

  2079. "

  2080. 

  2081. TYPES_LIST="

  2082.     CONDITION_VARIABLE_Ptr

  2083.     kCMVideoCodecType_HEVC

  2084.     socklen_t

  2085.     struct_addrinfo

  2086.     struct_group_source_req

  2087.     struct_ip_mreq_source

  2088.     struct_ipv6_mreq

  2089.     struct_msghdr_msg_flags

  2090.     struct_pollfd

  2091.     struct_rusage_ru_maxrss

  2092.     struct_sctp_event_subscribe

  2093.     struct_sockaddr_in6

  2094.     struct_sockaddr_sa_len

  2095.     struct_sockaddr_storage

  2096.     struct_stat_st_mtim_tv_nsec

  2097.     struct_v4l2_frmivalenum_discrete

  2098. "

  2099. 

  2100. HAVE_LIST="

  2101.     $ARCH_EXT_LIST

  2102.     $(add_suffix _external $ARCH_EXT_LIST)

  2103.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2104.     $ARCH_FEATURES

  2105.     $ATOMICS_LIST

  2106.     $BUILTIN_LIST

  2107.     $COMPLEX_FUNCS

  2108.     $HAVE_LIST_CMDLINE

  2109.     $HAVE_LIST_PUB

  2110.     $HEADERS_LIST

  2111.     $INTRINSICS_LIST

  2112.     $MATH_FUNCS

  2113.     $SYSTEM_FUNCS

  2114.     $THREADS_LIST

  2115.     $TOOLCHAIN_FEATURES

  2116.     $TYPES_LIST

  2117.     atomics_native

  2118.     dos_paths

  2119.     libc_msvcrt

  2120.     makeinfo

  2121.     makeinfo_html

  2122.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2123.     perl

  2124.     pod2man

  2125.     section_data_rel_ro

  2126.     texi2html

  2127.     threads

  2128.     uwp

  2129.     vaapi_drm

  2130.     vaapi_x11

  2131.     vdpau_x11

  2132.     winrt

  2133. "

  2134. 

  2135. # options emitted with CONFIG_ prefix but not available on the command line

  2136. CONFIG_EXTRA="

  2137.     aandcttables

  2138.     ac3dsp

  2139.     adts_header

  2140.     audio_frame_queue

  2141.     audiodsp

  2142.     blockdsp

  2143.     bswapdsp

  2144.     cabac

  2145.     cbs

  2146.     cbs_h264

  2147.     cbs_h265

  2148.     cbs_mpeg2

  2149.     dirac_parse

  2150.     dvprofile

  2151.     exif

  2152.     faandct

  2153.     faanidct

  2154.     fdctdsp

  2155.     flacdsp

  2156.     fmtconvert

  2157.     frame_thread_encoder

  2158.     g722dsp

  2159.     golomb

  2160.     gplv3

  2161.     h263dsp

  2162.     h264chroma

  2163.     h264dsp

  2164.     h264parse

  2165.     h264pred

  2166.     h264qpel

  2167.     hevcparse

  2168.     hpeldsp

  2169.     huffman

  2170.     huffyuvdsp

  2171.     huffyuvencdsp

  2172.     idctdsp

  2173.     iirfilter

  2174.     mdct15

  2175.     intrax8

  2176.     iso_media

  2177.     ividsp

  2178.     jpegtables

  2179.     lgplv3

  2180.     libx262

  2181.     llauddsp

  2182.     llviddsp

  2183.     llvidencdsp

  2184.     lpc

  2185.     lzf

  2186.     me_cmp

  2187.     mpeg_er

  2188.     mpegaudio

  2189.     mpegaudiodsp

  2190.     mpegaudioheader

  2191.     mpegvideo

  2192.     mpegvideoenc

  2193.     mss34dsp

  2194.     pixblockdsp

  2195.     qpeldsp

  2196.     qsv

  2197.     qsvdec

  2198.     qsvenc

  2199.     rangecoder

  2200.     riffdec

  2201.     riffenc

  2202.     rtpdec

  2203.     rtpenc_chain

  2204.     rv34dsp

  2205.     sinewin

  2206.     snappy

  2207.     srtp

  2208.     startcode

  2209.     texturedsp

  2210.     texturedspenc

  2211.     tpeldsp

  2212.     vaapi_1

  2213.     vaapi_encode

  2214.     vc1dsp

  2215.     videodsp

  2216.     vp3dsp

  2217.     vp56dsp

  2218.     vp8dsp

  2219.     wma_freqs

  2220.     wmv2dsp

  2221. "

  2222. 

  2223. CMDLINE_SELECT="

  2224.     $ARCH_EXT_LIST

  2225.     $CONFIG_LIST

  2226.     $HAVE_LIST_CMDLINE

  2227.     $THREADS_LIST

  2228.     asm

  2229.     cross_compile

  2230.     debug

  2231.     extra_warnings

  2232.     logging

  2233.     lto

  2234.     optimizations

  2235.     rpath

  2236.     stripping

  2237. "

  2238. 

  2239. PATHS_LIST="

  2240.     bindir

  2241.     datadir

  2242.     docdir

  2243.     incdir

  2244.     libdir

  2245.     mandir

  2246.     pkgconfigdir

  2247.     prefix

  2248.     shlibdir

  2249.     install_name_dir

  2250. "

  2251. 

  2252. CMDLINE_SET="

  2253.     $PATHS_LIST

  2254.     ar

  2255.     arch

  2256.     as

  2257.     assert_level

  2258.     build_suffix

  2259.     cc

  2260.     objcc

  2261.     cpu

  2262.     cross_prefix

  2263.     custom_allocator

  2264.     cxx

  2265.     dep_cc

  2266.     doxygen

  2267.     env

  2268.     extra_version

  2269.     gas

  2270.     host_cc

  2271.     host_cflags

  2272.     host_extralibs

  2273.     host_ld

  2274.     host_ldflags

  2275.     host_os

  2276.     ignore_tests

  2277.     install

  2278.     ld

  2279.     ln_s

  2280.     logfile

  2281.     malloc_prefix

  2282.     nm

  2283.     optflags

  2284.     nvccflags

  2285.     pkg_config

  2286.     pkg_config_flags

  2287.     progs_suffix

  2288.     random_seed

  2289.     ranlib

  2290.     samples

  2291.     strip

  2292.     sws_max_filter_size

  2293.     sysinclude

  2294.     sysroot

  2295.     target_exec

  2296.     target_os

  2297.     target_path

  2298.     target_samples

  2299.     tempprefix

  2300.     toolchain

  2301.     valgrind

  2302.     x86asmexe

  2303. "

  2304. 

  2305. CMDLINE_APPEND="

  2306.     extra_cflags

  2307.     extra_cxxflags

  2308.     extra_objcflags

  2309.     host_cppflags

  2310. "

  2311. 

  2312. # code dependency declarations

  2313. 

  2314. # architecture extensions

  2315. 

  2316. armv5te_deps="arm"

  2317. armv6_deps="arm"

  2318. armv6t2_deps="arm"

  2319. armv8_deps="aarch64"

  2320. neon_deps_any="aarch64 arm"

  2321. intrinsics_neon_deps="neon"

  2322. vfp_deps_any="aarch64 arm"

  2323. vfpv3_deps="vfp"

  2324. setend_deps="arm"

  2325. 

  2326. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2327. 

  2328. loongson2_deps="mips"

  2329. loongson3_deps="mips"

  2330. mipsfpu_deps="mips"

  2331. mipsdsp_deps="mips"

  2332. mipsdspr2_deps="mips"

  2333. mips32r2_deps="mips"

  2334. mips32r5_deps="mips"

  2335. mips32r6_deps="mips"

  2336. mips64r2_deps="mips"

  2337. mips64r6_deps="mips"

  2338. msa_deps="mipsfpu"

  2339. mmi_deps="mips"

  2340. 

  2341. altivec_deps="ppc"

  2342. dcbzl_deps="ppc"

  2343. ldbrx_deps="ppc"

  2344. ppc4xx_deps="ppc"

  2345. vsx_deps="altivec"

  2346. power8_deps="vsx"

  2347. 

  2348. cpunop_deps="i686"

  2349. x86_64_select="i686"

  2350. x86_64_suggest="fast_cmov"

  2351. 

  2352. amd3dnow_deps="mmx"

  2353. amd3dnowext_deps="amd3dnow"

  2354. i686_deps="x86"

  2355. mmx_deps="x86"

  2356. mmxext_deps="mmx"

  2357. sse_deps="mmxext"

  2358. sse2_deps="sse"

  2359. sse3_deps="sse2"

  2360. ssse3_deps="sse3"

  2361. sse4_deps="ssse3"

  2362. sse42_deps="sse4"

  2363. aesni_deps="sse42"

  2364. avx_deps="sse42"

  2365. xop_deps="avx"

  2366. fma3_deps="avx"

  2367. fma4_deps="avx"

  2368. avx2_deps="avx"

  2369. 

  2370. mmx_external_deps="x86asm"

  2371. mmx_inline_deps="inline_asm"

  2372. mmx_suggest="mmx_external mmx_inline"

  2373. 

  2374. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2375.     eval dep=\$${ext}_deps

  2376.     eval ${ext}_external_deps='"${dep}_external"'

  2377.     eval ${ext}_inline_deps='"${dep}_inline"'

  2378.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2379. done

  2380. 

  2381. aligned_stack_if_any="aarch64 ppc x86"

  2382. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2383. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2384. fast_unaligned_if_any="aarch64 ppc x86"

  2385. simd_align_16_if_any="altivec neon sse"

  2386. simd_align_32_if_any="avx"

  2387. 

  2388. # system capabilities

  2389. symver_if_any="symver_asm_label symver_gnu_asm"

  2390. valgrind_backtrace_conflict="optimizations"

  2391. valgrind_backtrace_deps="valgrind_valgrind_h"

  2392. 

  2393. # threading support

  2394. atomics_gcc_if="sync_val_compare_and_swap"

  2395. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2396. atomics_win32_if="MemoryBarrier"

  2397. atomics_native_if_any="$ATOMICS_LIST"

  2398. w32threads_deps="atomics_native"

  2399. threads_if_any="$THREADS_LIST"

  2400. 

  2401. # subsystems

  2402. cbs_h264_select="cbs golomb"

  2403. cbs_h265_select="cbs golomb"

  2404. cbs_mpeg2_select="cbs"

  2405. dct_select="rdft"

  2406. dirac_parse_select="golomb"

  2407. error_resilience_select="me_cmp"

  2408. faandct_deps="faan fdctdsp"

  2409. faanidct_deps="faan idctdsp"

  2410. h264dsp_select="startcode"

  2411. hevcparse_select="golomb"

  2412. frame_thread_encoder_deps="encoders threads"

  2413. intrax8_select="blockdsp idctdsp"

  2414. mdct_select="fft"

  2415. mdct15_select="fft"

  2416. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2417. mpeg_er_select="error_resilience"

  2418. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2419. mpegaudiodsp_select="dct"

  2420. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2421. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2422. vc1dsp_select="h264chroma qpeldsp startcode"

  2423. rdft_select="fft"

  2424. 

  2425. # decoders / encoders

  2426. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2427. aac_fixed_decoder_select="mdct sinewin"

  2428. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2429. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2430. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2431. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2432. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2433. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2434. adpcm_g722_decoder_select="g722dsp"

  2435. adpcm_g722_encoder_select="g722dsp"

  2436. aic_decoder_select="golomb idctdsp"

  2437. alac_encoder_select="lpc"

  2438. als_decoder_select="bswapdsp"

  2439. amrnb_decoder_select="lsp"

  2440. amrwb_decoder_select="lsp"

  2441. amv_decoder_select="sp5x_decoder exif"

  2442. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2443. ape_decoder_select="bswapdsp llauddsp"

  2444. apng_decoder_select="zlib"

  2445. apng_encoder_select="llvidencdsp zlib"

  2446. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2447. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2448. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2449. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2450. atrac1_decoder_select="mdct sinewin"

  2451. atrac3_decoder_select="mdct"

  2452. atrac3p_decoder_select="mdct sinewin"

  2453. avrn_decoder_select="exif jpegtables"

  2454. bink_decoder_select="blockdsp hpeldsp"

  2455. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2456. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2457. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2458. clearvideo_decoder_select="idctdsp"

  2459. cllc_decoder_select="bswapdsp"

  2460. comfortnoise_encoder_select="lpc"

  2461. cook_decoder_select="audiodsp mdct sinewin"

  2462. cscd_decoder_select="lzo"

  2463. cscd_decoder_suggest="zlib"

  2464. dca_decoder_select="mdct"

  2465. dds_decoder_select="texturedsp"

  2466. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2467. dnxhd_decoder_select="blockdsp idctdsp"

  2468. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2469. dolby_e_decoder_select="mdct"

  2470. dvvideo_decoder_select="dvprofile idctdsp"

  2471. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2472. dxa_decoder_select="zlib"

  2473. dxv_decoder_select="lzf texturedsp"

  2474. eac3_decoder_select="ac3_decoder"

  2475. eac3_encoder_select="ac3_encoder"

  2476. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2477. eatgq_decoder_select="aandcttables"

  2478. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2479. exr_decoder_select="zlib"

  2480. ffv1_decoder_select="rangecoder"

  2481. ffv1_encoder_select="rangecoder"

  2482. ffvhuff_decoder_select="huffyuv_decoder"

  2483. ffvhuff_encoder_select="huffyuv_encoder"

  2484. fic_decoder_select="golomb"

  2485. flac_decoder_select="flacdsp"

  2486. flac_encoder_select="bswapdsp flacdsp lpc"

  2487. flashsv2_decoder_select="zlib"

  2488. flashsv2_encoder_select="zlib"

  2489. flashsv_decoder_select="zlib"

  2490. flashsv_encoder_select="zlib"

  2491. flv_decoder_select="h263_decoder"

  2492. flv_encoder_select="h263_encoder"

  2493. fourxm_decoder_select="blockdsp bswapdsp"

  2494. fraps_decoder_select="bswapdsp huffman"

  2495. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2496. g729_decoder_select="audiodsp"

  2497. h261_decoder_select="mpegvideo"

  2498. h261_encoder_select="aandcttables mpegvideoenc"

  2499. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2500. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2501. h263i_decoder_select="h263_decoder"

  2502. h263p_decoder_select="h263_decoder"

  2503. h263p_encoder_select="h263_encoder"

  2504. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2505. h264_decoder_suggest="error_resilience"

  2506. hap_decoder_select="snappy texturedsp"

  2507. hap_encoder_deps="libsnappy"

  2508. hap_encoder_select="texturedspenc"

  2509. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2510. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2511. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2512. iac_decoder_select="imc_decoder"

  2513. imc_decoder_select="bswapdsp fft mdct sinewin"

  2514. indeo3_decoder_select="hpeldsp"

  2515. indeo4_decoder_select="ividsp"

  2516. indeo5_decoder_select="ividsp"

  2517. interplay_video_decoder_select="hpeldsp"

  2518. jpegls_decoder_select="mjpeg_decoder"

  2519. jv_decoder_select="blockdsp"

  2520. lagarith_decoder_select="llviddsp"

  2521. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2522. magicyuv_decoder_select="llviddsp"

  2523. magicyuv_encoder_select="llvidencdsp"

  2524. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2525. metasound_decoder_select="lsp mdct sinewin"

  2526. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2527. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2528. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2529. mjpegb_decoder_select="mjpeg_decoder"

  2530. mlp_decoder_select="mlp_parser"

  2531. mlp_encoder_select="lpc"

  2532. motionpixels_decoder_select="bswapdsp"

  2533. mp1_decoder_select="mpegaudio"

  2534. mp1float_decoder_select="mpegaudio"

  2535. mp2_decoder_select="mpegaudio"

  2536. mp2float_decoder_select="mpegaudio"

  2537. mp3_decoder_select="mpegaudio"

  2538. mp3adu_decoder_select="mpegaudio"

  2539. mp3adufloat_decoder_select="mpegaudio"

  2540. mp3float_decoder_select="mpegaudio"

  2541. mp3on4_decoder_select="mpegaudio"

  2542. mp3on4float_decoder_select="mpegaudio"

  2543. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2544. mpc8_decoder_select="mpegaudiodsp"

  2545. mpegvideo_decoder_select="mpegvideo"

  2546. mpeg1video_decoder_select="mpegvideo"

  2547. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2548. mpeg2video_decoder_select="mpegvideo"

  2549. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2550. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2551. mpeg4_encoder_select="h263_encoder"

  2552. msa1_decoder_select="mss34dsp"

  2553. mscc_decoder_select="zlib"

  2554. msmpeg4v1_decoder_select="h263_decoder"

  2555. msmpeg4v2_decoder_select="h263_decoder"

  2556. msmpeg4v2_encoder_select="h263_encoder"

  2557. msmpeg4v3_decoder_select="h263_decoder"

  2558. msmpeg4v3_encoder_select="h263_encoder"

  2559. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2560. mts2_decoder_select="mss34dsp"

  2561. mxpeg_decoder_select="mjpeg_decoder"

  2562. nellymoser_decoder_select="mdct sinewin"

  2563. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2564. nuv_decoder_select="idctdsp lzo"

  2565. on2avc_decoder_select="mdct"

  2566. opus_decoder_deps="swresample"

  2567. opus_decoder_select="mdct15"

  2568. opus_encoder_select="audio_frame_queue mdct15"

  2569. png_decoder_select="zlib"

  2570. png_encoder_select="llvidencdsp zlib"

  2571. prores_decoder_select="blockdsp idctdsp"

  2572. prores_encoder_select="fdctdsp"

  2573. qcelp_decoder_select="lsp"

  2574. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2575. ra_144_decoder_select="audiodsp"

  2576. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2577. ralf_decoder_select="golomb"

  2578. rawvideo_decoder_select="bswapdsp"

  2579. rscc_decoder_select="zlib"

  2580. rtjpeg_decoder_select="me_cmp"

  2581. rv10_decoder_select="h263_decoder"

  2582. rv10_encoder_select="h263_encoder"

  2583. rv20_decoder_select="h263_decoder"

  2584. rv20_encoder_select="h263_encoder"

  2585. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2586. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2587. screenpresso_decoder_select="zlib"

  2588. shorten_decoder_select="bswapdsp"

  2589. sipr_decoder_select="lsp"

  2590. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2591. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2592. sonic_decoder_select="golomb rangecoder"

  2593. sonic_encoder_select="golomb rangecoder"

  2594. sonic_ls_encoder_select="golomb rangecoder"

  2595. sp5x_decoder_select="mjpeg_decoder"

  2596. srgc_decoder_select="zlib"

  2597. svq1_decoder_select="hpeldsp"

  2598. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2599. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2600. svq3_decoder_suggest="zlib"

  2601. tak_decoder_select="audiodsp"

  2602. tdsc_decoder_select="zlib mjpeg_decoder"

  2603. theora_decoder_select="vp3_decoder"

  2604. thp_decoder_select="mjpeg_decoder"

  2605. tiff_decoder_suggest="zlib lzma"

  2606. tiff_encoder_suggest="zlib"

  2607. truehd_decoder_select="mlp_parser"

  2608. truehd_encoder_select="lpc"

  2609. truemotion2_decoder_select="bswapdsp"

  2610. truespeech_decoder_select="bswapdsp"

  2611. tscc_decoder_select="zlib"

  2612. twinvq_decoder_select="mdct lsp sinewin"

  2613. txd_decoder_select="texturedsp"

  2614. utvideo_decoder_select="bswapdsp llviddsp"

  2615. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2616. vble_decoder_select="llviddsp"

  2617. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2618. vc1_qsv_decoder_deps="libmfx"

  2619. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2620. vc1image_decoder_select="vc1_decoder"

  2621. vorbis_decoder_select="mdct"

  2622. vorbis_encoder_select="mdct"

  2623. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2624. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2625. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2626. vp6a_decoder_select="vp6_decoder"

  2627. vp6f_decoder_select="vp6_decoder"

  2628. vp7_decoder_select="h264pred videodsp vp8dsp"

  2629. vp8_decoder_select="h264pred videodsp vp8dsp"

  2630. vp9_decoder_select="videodsp vp9_parser"

  2631. webp_decoder_select="vp8_decoder exif"

  2632. wmalossless_decoder_select="llauddsp"

  2633. wmapro_decoder_select="mdct sinewin wma_freqs"

  2634. wmav1_decoder_select="mdct sinewin wma_freqs"

  2635. wmav1_encoder_select="mdct sinewin wma_freqs"

  2636. wmav2_decoder_select="mdct sinewin wma_freqs"

  2637. wmav2_encoder_select="mdct sinewin wma_freqs"

  2638. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2639. wmv1_decoder_select="h263_decoder"

  2640. wmv1_encoder_select="h263_encoder"

  2641. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2642. wmv2_encoder_select="h263_encoder wmv2dsp"

  2643. wmv3_decoder_select="vc1_decoder"

  2644. wmv3image_decoder_select="wmv3_decoder"

  2645. xma1_decoder_select="wmapro_decoder"

  2646. xma2_decoder_select="wmapro_decoder"

  2647. zerocodec_decoder_select="zlib"

  2648. zlib_decoder_select="zlib"

  2649. zlib_encoder_select="zlib"

  2650. zmbv_decoder_select="zlib"

  2651. zmbv_encoder_select="zlib"

  2652. 

  2653. # hardware accelerators

  2654. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2655. cuda_deps_any="libdl LoadLibrary"

  2656. cuvid_deps="cuda"

  2657. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2658. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2659. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2660. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2661. xvmc_deps="X11_extensions_XvMClib_h"

  2662. 

  2663. h263_vaapi_hwaccel_deps="vaapi"

  2664. h263_vaapi_hwaccel_select="h263_decoder"

  2665. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2666. h263_videotoolbox_hwaccel_select="h263_decoder"

  2667. h264_cuvid_hwaccel_deps="cuda cuvid"

  2668. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2669. h264_d3d11va_hwaccel_deps="d3d11va"

  2670. h264_d3d11va_hwaccel_select="h264_decoder"

  2671. h264_d3d11va2_hwaccel_deps="d3d11va"

  2672. h264_d3d11va2_hwaccel_select="h264_decoder"

  2673. h264_dxva2_hwaccel_deps="dxva2"

  2674. h264_dxva2_hwaccel_select="h264_decoder"

  2675. h264_mediacodec_hwaccel_deps="mediacodec"

  2676. h264_mmal_hwaccel_deps="mmal"

  2677. h264_qsv_hwaccel_deps="libmfx"

  2678. h264_vaapi_hwaccel_deps="vaapi"

  2679. h264_vaapi_hwaccel_select="h264_decoder"

  2680. h264_vdpau_hwaccel_deps="vdpau"

  2681. h264_vdpau_hwaccel_select="h264_decoder"

  2682. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2683. h264_videotoolbox_hwaccel_select="h264_decoder"

  2684. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2685. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2686. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2687. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2688. hevc_mediacodec_hwaccel_deps="mediacodec"

  2689. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2690. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2691. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2692. hevc_dxva2_hwaccel_select="hevc_decoder"

  2693. hevc_qsv_hwaccel_deps="libmfx"

  2694. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2695. hevc_vaapi_hwaccel_select="hevc_decoder"

  2696. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2697. hevc_vdpau_hwaccel_select="hevc_decoder"

  2698. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2699. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2700. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2701. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2702. mpeg_xvmc_hwaccel_deps="xvmc"

  2703. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2704. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2705. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2706. mpeg1_vdpau_hwaccel_deps="vdpau"

  2707. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2708. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2709. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2710. mpeg1_xvmc_hwaccel_deps="xvmc"

  2711. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2712. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2713. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2714. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2715. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2716. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2717. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2718. mpeg2_dxva2_hwaccel_deps="dxva2"

  2719. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2720. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2721. mpeg2_mmal_hwaccel_deps="mmal"

  2722. mpeg2_qsv_hwaccel_deps="libmfx"

  2723. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2724. mpeg2_vaapi_hwaccel_deps="vaapi"

  2725. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2726. mpeg2_vdpau_hwaccel_deps="vdpau"

  2727. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2728. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2729. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2730. mpeg2_xvmc_hwaccel_deps="xvmc"

  2731. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2732. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2733. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2734. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2735. mpeg4_mmal_hwaccel_deps="mmal"

  2736. mpeg4_vaapi_hwaccel_deps="vaapi"

  2737. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2738. mpeg4_vdpau_hwaccel_deps="vdpau"

  2739. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2740. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2741. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2742. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2743. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2744. vc1_d3d11va_hwaccel_deps="d3d11va"

  2745. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2746. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2747. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2748. vc1_dxva2_hwaccel_deps="dxva2"

  2749. vc1_dxva2_hwaccel_select="vc1_decoder"

  2750. vc1_mmal_hwaccel_deps="mmal"

  2751. vc1_qsv_hwaccel_deps="libmfx"

  2752. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2753. vc1_vaapi_hwaccel_deps="vaapi"

  2754. vc1_vaapi_hwaccel_select="vc1_decoder"

  2755. vc1_vdpau_hwaccel_deps="vdpau"

  2756. vc1_vdpau_hwaccel_select="vc1_decoder"

  2757. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2758. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2759. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2760. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2761. vp8_mediacodec_hwaccel_deps="mediacodec"

  2762. vp8_qsv_hwaccel_deps="libmfx"

  2763. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2764. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2765. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2766. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2767. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2768. vp9_dxva2_hwaccel_select="vp9_decoder"

  2769. vp9_mediacodec_hwaccel_deps="mediacodec"

  2770. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2771. vp9_vaapi_hwaccel_select="vp9_decoder"

  2772. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2773. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2774. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2775. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2776. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2777. 

  2778. # hardware-accelerated codecs

  2779. omx_deps="libdl pthreads"

  2780. omx_rpi_select="omx"

  2781. qsvdec_select="qsv"

  2782. qsvenc_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. nvenc_deps="cuda"

  2792. nvenc_deps_any="libdl LoadLibrary"

  2793. nvenc_encoder_deps="nvenc"

  2794. 

  2795. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2796. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2797. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2798. h264_cuvid_decoder_deps="cuda cuvid"

  2799. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2800. h264_mediacodec_decoder_deps="mediacodec"

  2801. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2802. h264_mmal_decoder_deps="mmal"

  2803. h264_nvenc_encoder_deps="nvenc"

  2804. h264_omx_encoder_deps="omx"

  2805. h264_qsv_decoder_deps="libmfx"

  2806. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2807. h264_qsv_encoder_deps="libmfx"

  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_cuvid_decoder_deps="cuda cuvid"

  2816. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2817. hevc_mediacodec_decoder_deps="mediacodec"

  2818. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2819. hevc_nvenc_encoder_deps="nvenc"

  2820. hevc_qsv_decoder_deps="libmfx"

  2821. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2822. hevc_qsv_encoder_deps="libmfx"

  2823. hevc_qsv_encoder_select="hevcparse qsvenc"

  2824. hevc_rkmpp_decoder_deps="rkmpp"

  2825. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2826. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2827. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2828. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2829. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2830. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2831. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2832. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2833. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2834. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2835. mpeg2_crystalhd_decoder_select="crystalhd"

  2836. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2837. mpeg2_mmal_decoder_deps="mmal"

  2838. mpeg2_mediacodec_decoder_deps="mediacodec"

  2839. mpeg2_qsv_decoder_deps="libmfx"

  2840. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2841. mpeg2_qsv_encoder_deps="libmfx"

  2842. mpeg2_qsv_encoder_select="qsvenc"

  2843. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2844. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2845. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2846. mpeg4_crystalhd_decoder_select="crystalhd"

  2847. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2848. mpeg4_mediacodec_decoder_deps="mediacodec"

  2849. mpeg4_mmal_decoder_deps="mmal"

  2850. mpeg4_omx_encoder_deps="omx"

  2851. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2852. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2853. msmpeg4_crystalhd_decoder_select="crystalhd"

  2854. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2855. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2856. vc1_crystalhd_decoder_select="crystalhd"

  2857. vc1_cuvid_decoder_deps="cuda cuvid"

  2858. vc1_mmal_decoder_deps="mmal"

  2859. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2860. vp8_cuvid_decoder_deps="cuda cuvid"

  2861. vp8_mediacodec_decoder_deps="mediacodec"

  2862. vp8_qsv_decoder_deps="libmfx"

  2863. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2864. vp8_rkmpp_decoder_deps="rkmpp"

  2865. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2866. vp8_vaapi_encoder_select="vaapi_encode"

  2867. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2868. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2869. vp9_cuvid_decoder_deps="cuda cuvid"

  2870. vp9_mediacodec_decoder_deps="mediacodec"

  2871. vp9_rkmpp_decoder_deps="rkmpp"

  2872. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2873. vp9_vaapi_encoder_select="vaapi_encode"

  2874. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2875. wmv3_crystalhd_decoder_select="crystalhd"

  2876. 

  2877. # parsers

  2878. aac_parser_select="adts_header"

  2879. h264_parser_select="golomb h264dsp h264parse"

  2880. hevc_parser_select="hevcparse"

  2881. mpegaudio_parser_select="mpegaudioheader"

  2882. mpegvideo_parser_select="mpegvideo"

  2883. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2884. vc1_parser_select="vc1dsp"

  2885. 

  2886. # bitstream_filters

  2887. aac_adtstoasc_bsf_select="adts_header"

  2888. h264_metadata_bsf_select="cbs_h264"

  2889. h264_redundant_pps_bsf_select="cbs_h264"

  2890. hevc_metadata_bsf_select="cbs_h265"

  2891. mjpeg2jpeg_bsf_select="jpegtables"

  2892. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2893. trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"

  2894. 

  2895. # external libraries

  2896. aac_at_decoder_deps="audiotoolbox"

  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. libcelt_decoder_deps="libcelt"

  2933. libfdk_aac_decoder_deps="libfdk_aac"

  2934. libfdk_aac_encoder_deps="libfdk_aac"

  2935. libfdk_aac_encoder_select="audio_frame_queue"

  2936. libgme_demuxer_deps="libgme"

  2937. libgsm_decoder_deps="libgsm"

  2938. libgsm_encoder_deps="libgsm"

  2939. libgsm_ms_decoder_deps="libgsm"

  2940. libgsm_ms_encoder_deps="libgsm"

  2941. libilbc_decoder_deps="libilbc"

  2942. libilbc_encoder_deps="libilbc"

  2943. libkvazaar_encoder_deps="libkvazaar"

  2944. libmodplug_demuxer_deps="libmodplug"

  2945. libmp3lame_encoder_deps="libmp3lame"

  2946. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2947. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2948. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2949. libopencore_amrnb_encoder_select="audio_frame_queue"

  2950. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2951. libopenh264_decoder_deps="libopenh264"

  2952. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2953. libopenh264_encoder_deps="libopenh264"

  2954. libopenjpeg_decoder_deps="libopenjpeg"

  2955. libopenjpeg_encoder_deps="libopenjpeg"

  2956. libopenmpt_demuxer_deps="libopenmpt"

  2957. libopus_decoder_deps="libopus"

  2958. libopus_encoder_deps="libopus"

  2959. libopus_encoder_select="audio_frame_queue"

  2960. librsvg_decoder_deps="librsvg"

  2961. libshine_encoder_deps="libshine"

  2962. libshine_encoder_select="audio_frame_queue"

  2963. libspeex_decoder_deps="libspeex"

  2964. libspeex_encoder_deps="libspeex"

  2965. libspeex_encoder_select="audio_frame_queue"

  2966. libtheora_encoder_deps="libtheora"

  2967. libtwolame_encoder_deps="libtwolame"

  2968. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2969. libvorbis_decoder_deps="libvorbis"

  2970. libvorbis_encoder_deps="libvorbis libvorbisenc"

  2971. libvorbis_encoder_select="audio_frame_queue"

  2972. libvpx_vp8_decoder_deps="libvpx"

  2973. libvpx_vp8_encoder_deps="libvpx"

  2974. libvpx_vp9_decoder_deps="libvpx"

  2975. libvpx_vp9_encoder_deps="libvpx"

  2976. libwavpack_encoder_deps="libwavpack"

  2977. libwavpack_encoder_select="audio_frame_queue"

  2978. libwebp_encoder_deps="libwebp"

  2979. libwebp_anim_encoder_deps="libwebp"

  2980. libx262_encoder_deps="libx262"

  2981. libx264_encoder_deps="libx264"

  2982. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2983. libx264rgb_encoder_select="libx264_encoder"

  2984. libx265_encoder_deps="libx265"

  2985. libxavs_encoder_deps="libxavs"

  2986. libxvid_encoder_deps="libxvid"

  2987. libzvbi_teletext_decoder_deps="libzvbi"

  2988. videotoolbox_suggest="coreservices"

  2989. videotoolbox_deps="corefoundation coremedia corevideo"

  2990. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2991. 

  2992. # demuxers / muxers

  2993. ac3_demuxer_select="ac3_parser"

  2994. aiff_muxer_select="iso_media"

  2995. asf_demuxer_select="riffdec"

  2996. asf_o_demuxer_select="riffdec"

  2997. asf_muxer_select="riffenc"

  2998. asf_stream_muxer_select="asf_muxer"

  2999. avi_demuxer_select="iso_media riffdec exif"

  3000. avi_muxer_select="riffenc"

  3001. caf_demuxer_select="iso_media riffdec"

  3002. caf_muxer_select="iso_media"

  3003. dash_muxer_select="mp4_muxer"

  3004. dash_demuxer_deps="libxml2"

  3005. dirac_demuxer_select="dirac_parser"

  3006. dts_demuxer_select="dca_parser"

  3007. dtshd_demuxer_select="dca_parser"

  3008. dv_demuxer_select="dvprofile"

  3009. dv_muxer_select="dvprofile"

  3010. dxa_demuxer_select="riffdec"

  3011. eac3_demuxer_select="ac3_parser"

  3012. f4v_muxer_select="mov_muxer"

  3013. fifo_muxer_deps="threads"

  3014. flac_demuxer_select="flac_parser"

  3015. hds_muxer_select="flv_muxer"

  3016. hls_muxer_select="mpegts_muxer"

  3017. hls_muxer_suggest="gcrypt openssl"

  3018. image2_alias_pix_demuxer_select="image2_demuxer"

  3019. image2_brender_pix_demuxer_select="image2_demuxer"

  3020. ipod_muxer_select="mov_muxer"

  3021. ismv_muxer_select="mov_muxer"

  3022. matroska_audio_muxer_select="matroska_muxer"

  3023. matroska_demuxer_select="iso_media riffdec"

  3024. matroska_demuxer_suggest="bzlib lzo zlib"

  3025. matroska_muxer_select="iso_media riffenc"

  3026. mmf_muxer_select="riffenc"

  3027. mov_demuxer_select="iso_media riffdec"

  3028. mov_demuxer_suggest="zlib"

  3029. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3030. mp3_demuxer_select="mpegaudio_parser"

  3031. mp3_muxer_select="mpegaudioheader"

  3032. mp4_muxer_select="mov_muxer"

  3033. mpegts_demuxer_select="iso_media"

  3034. mpegts_muxer_select="adts_muxer latm_muxer"

  3035. mpegtsraw_demuxer_select="mpegts_demuxer"

  3036. mxf_d10_muxer_select="mxf_muxer"

  3037. mxf_opatom_muxer_select="mxf_muxer"

  3038. nut_muxer_select="riffenc"

  3039. nuv_demuxer_select="riffdec"

  3040. oga_muxer_select="ogg_muxer"

  3041. ogg_demuxer_select="dirac_parse"

  3042. ogv_muxer_select="ogg_muxer"

  3043. opus_muxer_select="ogg_muxer"

  3044. psp_muxer_select="mov_muxer"

  3045. rtp_demuxer_select="sdp_demuxer"

  3046. rtp_muxer_select="golomb"

  3047. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3048. rtsp_demuxer_select="http_protocol rtpdec"

  3049. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3050. sap_demuxer_select="sdp_demuxer"

  3051. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3052. sdp_demuxer_select="rtpdec"

  3053. smoothstreaming_muxer_select="ismv_muxer"

  3054. spdif_demuxer_select="adts_header"

  3055. spdif_muxer_select="adts_header"

  3056. spx_muxer_select="ogg_muxer"

  3057. swf_demuxer_suggest="zlib"

  3058. tak_demuxer_select="tak_parser"

  3059. tg2_muxer_select="mov_muxer"

  3060. tgp_muxer_select="mov_muxer"

  3061. vobsub_demuxer_select="mpegps_demuxer"

  3062. w64_demuxer_select="wav_demuxer"

  3063. w64_muxer_select="wav_muxer"

  3064. wav_demuxer_select="riffdec"

  3065. wav_muxer_select="riffenc"

  3066. webm_muxer_select="iso_media riffenc"

  3067. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3068. wtv_demuxer_select="mpegts_demuxer riffdec"

  3069. wtv_muxer_select="mpegts_muxer riffenc"

  3070. xmv_demuxer_select="riffdec"

  3071. xwma_demuxer_select="riffdec"

  3072. 

  3073. # indevs / outdevs

  3074. alsa_indev_deps="alsa"

  3075. alsa_outdev_deps="alsa"

  3076. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3077. avfoundation_indev_suggest="coregraphics applicationservices"

  3078. avfoundation_indev_extralibs="-framework Foundation"

  3079. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3080. caca_outdev_deps="libcaca"

  3081. decklink_deps_any="libdl LoadLibrary"

  3082. decklink_indev_deps="decklink threads"

  3083. decklink_indev_extralibs="-lstdc++"

  3084. decklink_outdev_deps="decklink threads"

  3085. decklink_outdev_extralibs="-lstdc++"

  3086. libndi_newtek_indev_deps="libndi_newtek"

  3087. libndi_newtek_indev_extralibs="-lndi"

  3088. libndi_newtek_outdev_deps="libndi_newtek"

  3089. libndi_newtek_outdev_extralibs="-lndi"

  3090. dshow_indev_deps="IBaseFilter"

  3091. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3092. fbdev_indev_deps="linux_fb_h"

  3093. fbdev_outdev_deps="linux_fb_h"

  3094. gdigrab_indev_deps="CreateDIBSection"

  3095. gdigrab_indev_extralibs="-lgdi32"

  3096. gdigrab_indev_select="bmp_decoder"

  3097. iec61883_indev_deps="libiec61883"

  3098. jack_indev_deps="libjack"

  3099. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3100. kmsgrab_indev_deps="libdrm"

  3101. lavfi_indev_deps="avfilter"

  3102. libcdio_indev_deps="libcdio"

  3103. libdc1394_indev_deps="libdc1394"

  3104. openal_indev_deps="openal"

  3105. opengl_outdev_deps="opengl"

  3106. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3107. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3108. pulse_indev_deps="libpulse"

  3109. pulse_outdev_deps="libpulse"

  3110. sdl2_outdev_deps="sdl2"

  3111. sndio_indev_deps="sndio"

  3112. sndio_outdev_deps="sndio"

  3113. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3114. v4l2_indev_suggest="libv4l2"

  3115. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3116. v4l2_outdev_suggest="libv4l2"

  3117. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3118. xcbgrab_indev_deps="libxcb"

  3119. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3120. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3121. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3122. 

  3123. # protocols

  3124. async_protocol_deps="threads"

  3125. bluray_protocol_deps="libbluray"

  3126. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3127. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3128. ffrtmpcrypt_protocol_select="tcp_protocol"

  3129. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3130. ffrtmphttp_protocol_select="http_protocol"

  3131. ftp_protocol_select="tcp_protocol"

  3132. gopher_protocol_select="network"

  3133. http_protocol_select="tcp_protocol"

  3134. http_protocol_suggest="zlib"

  3135. httpproxy_protocol_select="tcp_protocol"

  3136. httpproxy_protocol_suggest="zlib"

  3137. https_protocol_select="tls_protocol"

  3138. https_protocol_suggest="zlib"

  3139. icecast_protocol_select="http_protocol"

  3140. librtmp_protocol_deps="librtmp"

  3141. librtmpe_protocol_deps="librtmp"

  3142. librtmps_protocol_deps="librtmp"

  3143. librtmpt_protocol_deps="librtmp"

  3144. librtmpte_protocol_deps="librtmp"

  3145. libsmbclient_protocol_deps="libsmbclient gplv3"

  3146. libssh_protocol_deps="libssh"

  3147. mmsh_protocol_select="http_protocol"

  3148. mmst_protocol_select="network"

  3149. rtmp_protocol_conflict="librtmp_protocol"

  3150. rtmp_protocol_select="tcp_protocol"

  3151. rtmp_protocol_suggest="zlib"

  3152. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3153. rtmpe_protocol_suggest="zlib"

  3154. rtmps_protocol_conflict="librtmp_protocol"

  3155. rtmps_protocol_select="tls_protocol"

  3156. rtmps_protocol_suggest="zlib"

  3157. rtmpt_protocol_select="ffrtmphttp_protocol"

  3158. rtmpt_protocol_suggest="zlib"

  3159. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3160. rtmpte_protocol_suggest="zlib"

  3161. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3162. rtmpts_protocol_suggest="zlib"

  3163. rtp_protocol_select="udp_protocol"

  3164. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3165. sctp_protocol_select="network"

  3166. srtp_protocol_select="rtp_protocol srtp"

  3167. tcp_protocol_select="network"

  3168. tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"

  3169. tls_gnutls_protocol_deps="gnutls"

  3170. tls_gnutls_protocol_select="tcp_protocol"

  3171. tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"

  3172. tls_openssl_protocol_deps="openssl"

  3173. tls_openssl_protocol_select="tcp_protocol"

  3174. tls_schannel_protocol_deps="schannel"

  3175. tls_schannel_protocol_select="tcp_protocol"

  3176. tls_securetransport_protocol_deps="securetransport"

  3177. tls_securetransport_protocol_select="tcp_protocol"

  3178. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3179. udp_protocol_select="network"

  3180. udplite_protocol_select="network"

  3181. unix_protocol_deps="sys_un_h"

  3182. unix_protocol_select="network"

  3183. 

  3184. # filters

  3185. afftfilt_filter_deps="avcodec"

  3186. afftfilt_filter_select="fft"

  3187. afir_filter_deps="avcodec"

  3188. afir_filter_select="fft"

  3189. amovie_filter_deps="avcodec avformat"

  3190. aresample_filter_deps="swresample"

  3191. ass_filter_deps="libass"

  3192. atempo_filter_deps="avcodec"

  3193. atempo_filter_select="rdft"

  3194. azmq_filter_deps="libzmq"

  3195. blackframe_filter_deps="gpl"

  3196. boxblur_filter_deps="gpl"

  3197. bs2b_filter_deps="libbs2b"

  3198. colormatrix_filter_deps="gpl"

  3199. coreimage_filter_deps="coreimage appkit"

  3200. coreimage_filter_extralibs="-framework OpenGL"

  3201. coreimagesrc_filter_deps="coreimage appkit"

  3202. coreimagesrc_filter_extralibs="-framework OpenGL"

  3203. cover_rect_filter_deps="avcodec avformat gpl"

  3204. cropdetect_filter_deps="gpl"

  3205. deinterlace_qsv_filter_deps="libmfx"

  3206. deinterlace_vaapi_filter_deps="vaapi"

  3207. delogo_filter_deps="gpl"

  3208. deshake_filter_select="pixelutils"

  3209. deshake_filter_suggest="opencl"

  3210. drawtext_filter_deps="libfreetype"

  3211. drawtext_filter_suggest="libfontconfig libfribidi"

  3212. elbg_filter_deps="avcodec"

  3213. eq_filter_deps="gpl"

  3214. fftfilt_filter_deps="avcodec"

  3215. fftfilt_filter_select="rdft"

  3216. find_rect_filter_deps="avcodec avformat gpl"

  3217. firequalizer_filter_deps="avcodec"

  3218. firequalizer_filter_select="rdft"

  3219. flite_filter_deps="libflite"

  3220. framerate_filter_select="pixelutils"

  3221. frei0r_filter_deps="frei0r libdl"

  3222. frei0r_src_filter_deps="frei0r libdl"

  3223. fspp_filter_deps="gpl"

  3224. geq_filter_deps="gpl"

  3225. histeq_filter_deps="gpl"

  3226. hqdn3d_filter_deps="gpl"

  3227. interlace_filter_deps="gpl"

  3228. kerndeint_filter_deps="gpl"

  3229. ladspa_filter_deps="ladspa libdl"

  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. owdenoise_filter_deps="gpl"

  3240. pan_filter_deps="swresample"

  3241. perspective_filter_deps="gpl"

  3242. phase_filter_deps="gpl"

  3243. pp7_filter_deps="gpl"

  3244. pp_filter_deps="gpl postproc"

  3245. pullup_filter_deps="gpl"

  3246. removelogo_filter_deps="avcodec avformat swscale"

  3247. repeatfields_filter_deps="gpl"

  3248. resample_filter_deps="avresample"

  3249. rubberband_filter_deps="librubberband"

  3250. sab_filter_deps="gpl swscale"

  3251. scale2ref_filter_deps="swscale"

  3252. scale_filter_deps="swscale"

  3253. scale_qsv_filter_deps="libmfx"

  3254. select_filter_select="pixelutils"

  3255. showcqt_filter_deps="avcodec avformat swscale"

  3256. showcqt_filter_suggest="libfontconfig libfreetype"

  3257. showcqt_filter_select="fft"

  3258. showfreqs_filter_deps="avcodec"

  3259. showfreqs_filter_select="fft"

  3260. showspectrum_filter_deps="avcodec"

  3261. showspectrum_filter_select="fft"

  3262. showspectrumpic_filter_deps="avcodec"

  3263. showspectrumpic_filter_select="fft"

  3264. signature_filter_deps="gpl avcodec avformat"

  3265. smartblur_filter_deps="gpl swscale"

  3266. sofalizer_filter_deps="libmysofa avcodec"

  3267. sofalizer_filter_select="fft"

  3268. spectrumsynth_filter_deps="avcodec"

  3269. spectrumsynth_filter_select="fft"

  3270. spp_filter_deps="gpl avcodec"

  3271. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3272. stereo3d_filter_deps="gpl"

  3273. subtitles_filter_deps="avformat avcodec libass"

  3274. super2xsai_filter_deps="gpl"

  3275. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3276. tinterlace_filter_deps="gpl"

  3277. tinterlace_merge_test_deps="tinterlace_filter"

  3278. tinterlace_pad_test_deps="tinterlace_filter"

  3279. tonemap_filter_deps="const_nan"

  3280. uspp_filter_deps="gpl avcodec"

  3281. unsharp_filter_suggest="opencl"

  3282. vaguedenoiser_filter_deps="gpl"

  3283. vidstabdetect_filter_deps="libvidstab"

  3284. vidstabtransform_filter_deps="libvidstab"

  3285. libvmaf_filter_deps="libvmaf"

  3286. zmq_filter_deps="libzmq"

  3287. zoompan_filter_deps="swscale"

  3288. zscale_filter_deps="libzimg const_nan"

  3289. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3290. 

  3291. # examples

  3292. avio_dir_cmd_deps="avformat avutil"

  3293. avio_reading_deps="avformat avcodec avutil"

  3294. decode_audio_example_deps="avcodec avutil"

  3295. decode_video_example_deps="avcodec avutil"

  3296. demuxing_decoding_example_deps="avcodec avformat avutil"

  3297. encode_audio_example_deps="avcodec avutil"

  3298. encode_video_example_deps="avcodec avutil"

  3299. extract_mvs_example_deps="avcodec avformat avutil"

  3300. filter_audio_example_deps="avfilter avutil"

  3301. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3302. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3303. http_multiclient_example_deps="avformat avutil fork"

  3304. hw_decode_example_deps="avcodec avformat avutil"

  3305. metadata_example_deps="avformat avutil"

  3306. muxing_example_deps="avcodec avformat avutil swscale"

  3307. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3308. remuxing_example_deps="avcodec avformat avutil"

  3309. resampling_audio_example_deps="avutil swresample"

  3310. scaling_video_example_deps="avutil swscale"

  3311. transcode_aac_example_deps="avcodec avformat swresample"

  3312. transcoding_example_deps="avfilter avcodec avformat avutil"

  3313. 

  3314. # EXTRALIBS_LIST

  3315. cpu_init_extralibs="pthreads_extralibs"

  3316. cws2fws_extralibs="zlib_extralibs"

  3317. 

  3318. # libraries, in linking order

  3319. avcodec_deps="avutil"

  3320. avcodec_suggest="libm"

  3321. avcodec_select="null_bsf"

  3322. avdevice_deps="avformat avcodec avutil"

  3323. avdevice_suggest="libm"

  3324. avfilter_deps="avutil"

  3325. avfilter_suggest="libm"

  3326. avformat_deps="avcodec avutil"

  3327. avformat_suggest="libm network zlib"

  3328. avresample_deps="avutil"

  3329. avresample_suggest="libm"

  3330. avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3331. postproc_deps="avutil gpl"

  3332. postproc_suggest="libm"

  3333. swresample_deps="avutil"

  3334. swresample_suggest="libm libsoxr"

  3335. swscale_deps="avutil"

  3336. swscale_suggest="libm"

  3337. 

  3338. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3339. avfilter_extralibs="pthreads_extralibs"

  3340. avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3341. 

  3342. # programs

  3343. ffmpeg_deps="avcodec avfilter avformat swresample"

  3344. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3345.                null_filter

  3346.                trim_filter"

  3347. ffmpeg_suggest="ole32 psapi shell32"

  3348. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3349. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3350. ffplay_suggest="shell32"

  3351. ffprobe_deps="avcodec avformat"

  3352. ffprobe_suggest="shell32"

  3353. ffserver_deps="avformat fork sarestart"

  3354. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3355. 

  3356. # documentation

  3357. podpages_deps="perl"

  3358. manpages_deps="perl pod2man"

  3359. htmlpages_deps="perl"

  3360. htmlpages_deps_any="makeinfo_html texi2html"

  3361. txtpages_deps="perl makeinfo"

  3362. doc_deps_any="manpages htmlpages podpages txtpages"

  3363. 

  3364. # default parameters

  3365. 

  3366. logfile="ffbuild/config.log"

  3367. 

  3368. # installation paths

  3369. prefix_default="/usr/local"

  3370. bindir_default='${prefix}/bin'

  3371. datadir_default='${prefix}/share/ffmpeg'

  3372. docdir_default='${prefix}/share/doc/ffmpeg'

  3373. incdir_default='${prefix}/include'

  3374. libdir_default='${prefix}/lib'

  3375. mandir_default='${prefix}/share/man'

  3376. 

  3377. # toolchain

  3378. ar_default="ar"

  3379. cc_default="gcc"

  3380. cxx_default="g++"

  3381. host_cc_default="gcc"

  3382. doxygen_default="doxygen"

  3383. install="install"

  3384. ln_s_default="ln -s -f"

  3385. nm_default="nm -g"

  3386. pkg_config_default=pkg-config

  3387. ranlib_default="ranlib"

  3388. strip_default="strip"

  3389. version_script='--version-script'

  3390. x86asmexe_default="nasm"

  3391. windres_default="windres"

  3392. nvcc_default="nvcc"

  3393. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3394. striptype="direct"

  3395. 

  3396. # OS

  3397. target_os_default=$(tolower $(uname -s))

  3398. host_os=$target_os_default

  3399. 

  3400. # machine

  3401. if test "$target_os_default" = aix; then

  3402.     arch_default=$(uname -p)

  3403.     strip_default="strip -X32_64"

  3404. else

  3405.     arch_default=$(uname -m)

  3406. fi

  3407. cpu="generic"

  3408. intrinsics="none"

  3409. 

  3410. # configurable options

  3411. enable $PROGRAM_LIST

  3412. enable $DOCUMENT_LIST

  3413. enable $EXAMPLE_LIST

  3414. enable $(filter_out avresample $LIBRARY_LIST)

  3415. enable stripping

  3416. 

  3417. enable asm

  3418. enable debug

  3419. enable doc

  3420. enable faan faandct faanidct

  3421. enable optimizations

  3422. enable runtime_cpudetect

  3423. enable safe_bitstream_reader

  3424. enable static

  3425. enable swscale_alpha

  3426. enable valgrind_backtrace

  3427. 

  3428. sws_max_filter_size_default=256

  3429. set_default sws_max_filter_size

  3430. 

  3431. # internal components are enabled by default

  3432. enable $EXTRALIBS_LIST

  3433. 

  3434. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3435. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3436. 

  3437. # build settings

  3438. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3439. LIBPREF="lib"

  3440. LIBSUF=".a"

  3441. FULLNAME='$(NAME)$(BUILDSUF)'

  3442. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3443. SLIBPREF="lib"

  3444. SLIBSUF=".so"

  3445. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3446. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3447. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3448. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3449. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3450. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3451. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3452. 

  3453. asflags_filter=echo

  3454. cflags_filter=echo

  3455. ldflags_filter=echo

  3456. 

  3457. AS_C='-c'

  3458. AS_O='-o $@'

  3459. CC_C='-c'

  3460. CC_E='-E -o $@'

  3461. CC_O='-o $@'

  3462. CXX_C='-c'

  3463. CXX_O='-o $@'

  3464. OBJCC_C='-c'

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

  3466. OBJCC_O='-o $@'

  3467. X86ASM_O='-o $@'

  3468. LD_O='-o $@'

  3469. LD_LIB='-l%'

  3470. LD_PATH='-L'

  3471. HOSTCC_C='-c'

  3472. HOSTCC_E='-E -o $@'

  3473. HOSTCC_O='-o $@'

  3474. HOSTLD_O='-o $@'

  3475. NVCC_C='-c'

  3476. NVCC_O='-o $@'

  3477. 

  3478. host_extralibs='-lm'

  3479. host_cflags_filter=echo

  3480. host_ldflags_filter=echo

  3481. 

  3482. target_path='$(CURDIR)'

  3483. 

  3484. # since the object filename is not given with the -MM flag, the compiler

  3485. # is only able to print the basename, and we must add the path ourselves

  3486. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3487. DEPFLAGS='-MM'

  3488. 

  3489. mkdir -p ffbuild

  3490. 

  3491. # find source path

  3492. if test -f configure; then

  3493.     source_path=.

  3494. else

  3495.     source_path=$(cd $(dirname "$0"); pwd)

  3496.     case "$source_path" in

  3497.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3498.     esac

  3499.     test -e "$source_path/config.h" &&

  3500.         die "Out of tree builds are impossible with config.h in source dir."

  3501. fi

  3502. 

  3503. for v in "$@"; do

  3504.     r=${v#*=}

  3505.     l=${v%"$r"}

  3506.     r=$(sh_quote "$r")

  3507.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3508. done

  3509. 

  3510. find_things(){

  3511.     thing=$1

  3512.     pattern=$2

  3513.     file=$source_path/$3

  3514.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3515. }

  3516. 

  3517. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3518. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3519. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3520. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3521. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3522. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3523. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3524. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3525. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3526. 

  3527. find_things_extern(){

  3528.     thing=$1

  3529.     pattern=$2

  3530.     file=$source_path/$3

  3531.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3532. }

  3533. 

  3534. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3535. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3536. 

  3537. AVCODEC_COMPONENTS_LIST="

  3538.     $BSF_LIST

  3539.     $DECODER_LIST

  3540.     $ENCODER_LIST

  3541.     $HWACCEL_LIST

  3542.     $PARSER_LIST

  3543. "

  3544. 

  3545. AVDEVICE_COMPONENTS_LIST="

  3546.     $INDEV_LIST

  3547.     $OUTDEV_LIST

  3548. "

  3549. 

  3550. AVFILTER_COMPONENTS_LIST="

  3551.     $FILTER_LIST

  3552. "

  3553. 

  3554. AVFORMAT_COMPONENTS_LIST="

  3555.     $DEMUXER_LIST

  3556.     $MUXER_LIST

  3557.     $PROTOCOL_LIST

  3558. "

  3559. 

  3560. ALL_COMPONENTS="

  3561.     $AVCODEC_COMPONENTS_LIST

  3562.     $AVDEVICE_COMPONENTS_LIST

  3563.     $AVFILTER_COMPONENTS_LIST

  3564.     $AVFORMAT_COMPONENTS_LIST

  3565. "

  3566. 

  3567. for n in $COMPONENT_LIST; do

  3568.     v=$(toupper ${n%s})_LIST

  3569.     eval enable \$$v

  3570.     eval ${n}_if_any="\$$v"

  3571. done

  3572. 

  3573. enable $ARCH_EXT_LIST

  3574. 

  3575. die_unknown(){

  3576.     echo "Unknown option \"$1\"."

  3577.     echo "See $0 --help for available options."

  3578.     exit 1

  3579. }

  3580. 

  3581. print_in_columns() {

  3582.     cols=$(expr $ncols / 24)

  3583.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3584. }

  3585. 

  3586. show_list() {

  3587.     suffix=_$1

  3588.     shift

  3589.     echo $* | sed s/$suffix//g | print_in_columns

  3590.     exit 0

  3591. }

  3592. 

  3593. rand_list(){

  3594.     IFS=', '

  3595.     set -- $*

  3596.     unset IFS

  3597.     for thing; do

  3598.         comp=${thing%:*}

  3599.         prob=${thing#$comp}

  3600.         prob=${prob#:}

  3601.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3602.         echo "prob ${prob:-0.5}"

  3603.         printf '%s\n' $comp

  3604.     done

  3605. }

  3606. 

  3607. do_random(){

  3608.     action=$1

  3609.     shift

  3610.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3611.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3612. }

  3613. 

  3614. for opt do

  3615.     optval="${opt#*=}"

  3616.     case "$opt" in

  3617.         --extra-ldflags=*)

  3618.             add_ldflags $optval

  3619.         ;;

  3620.         --extra-ldexeflags=*)

  3621.             add_ldexeflags $optval

  3622.         ;;

  3623.         --extra-ldlibflags=*)

  3624.             add_ldlibflags $optval

  3625.         ;;

  3626.         --extra-libs=*)

  3627.             add_extralibs $optval

  3628.         ;;

  3629.         --disable-devices)

  3630.             disable $INDEV_LIST $OUTDEV_LIST

  3631.         ;;

  3632.         --enable-debug=*)

  3633.             debuglevel="$optval"

  3634.         ;;

  3635.         --disable-programs)

  3636.             disable $PROGRAM_LIST

  3637.         ;;

  3638.         --disable-everything)

  3639.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3640.         ;;

  3641.         --disable-all)

  3642.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3643.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3644.             enable avutil

  3645.         ;;

  3646.         --enable-random|--disable-random)

  3647.             action=${opt%%-random}

  3648.             do_random ${action#--} $COMPONENT_LIST

  3649.         ;;

  3650.         --enable-random=*|--disable-random=*)

  3651.             action=${opt%%-random=*}

  3652.             do_random ${action#--} $optval

  3653.         ;;

  3654.         --enable-sdl)

  3655.             enable sdl2

  3656.         ;;

  3657.         --enable-*=*|--disable-*=*)

  3658.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3659.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3660.             eval list=\$$(toupper $thing)_LIST

  3661.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3662.             list=$(filter "$name" $list)

  3663.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3664.             $action $list

  3665.         ;;

  3666.         --enable-yasm|--disable-yasm)

  3667.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3668.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3669.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3670.         ;;

  3671.         --yasmexe=*)

  3672.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3673.                  "removed in the future. Use --x86asmexe instead."

  3674.             x86asmexe="$optval"

  3675.         ;;

  3676.         --enable-?*|--disable-?*)

  3677.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3678.             if is_in $option $COMPONENT_LIST; then

  3679.                 test $action = disable && action=unset

  3680.                 eval $action \$$(toupper ${option%s})_LIST

  3681.             elif is_in $option $CMDLINE_SELECT; then

  3682.                 $action $option

  3683.             else

  3684.                 die_unknown $opt

  3685.             fi

  3686.         ;;

  3687.         --list-*)

  3688.             NAME="${opt#--list-}"

  3689.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3690.             NAME=${NAME%s}

  3691.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3692.         ;;

  3693.         --help|-h) show_help

  3694.         ;;

  3695.         --quiet|-q) quiet=yes

  3696.         ;;

  3697.         --fatal-warnings) enable fatal_warnings

  3698.         ;;

  3699.         --libfuzzer=*)

  3700.             libfuzzer_path="$optval"

  3701.         ;;

  3702.         *)

  3703.             optname="${opt%%=*}"

  3704.             optname="${optname#--}"

  3705.             optname=$(echo "$optname" | sed 's/-/_/g')

  3706.             if is_in $optname $CMDLINE_SET; then

  3707.                 eval $optname='$optval'

  3708.             elif is_in $optname $CMDLINE_APPEND; then

  3709.                 append $optname "$optval"

  3710.             else

  3711.                 die_unknown $opt

  3712.             fi

  3713.         ;;

  3714.     esac

  3715. done

  3716. 

  3717. for e in $env; do

  3718.     eval "export $e"

  3719. done

  3720. 

  3721. if disabled autodetect; then

  3722. 

  3723.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3724.     # for the iconv from the libc.

  3725.     disabled iconv || enable libc_iconv

  3726. 

  3727.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3728.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3729. fi

  3730. # Mark specifically enabled, but normally autodetected libraries as requested.

  3731. for lib in $AUTODETECT_LIBS; do

  3732.     enabled $lib && request $lib

  3733. done

  3734. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3735. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3736. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3737. 

  3738. disabled logging && logfile=/dev/null

  3739. 

  3740. die_license_disabled() {

  3741.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3742. }

  3743. 

  3744. die_license_disabled_gpl() {

  3745.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3746. }

  3747. 

  3748. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3749. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3750. 

  3751. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3752. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3753. 

  3754. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3755. 

  3756. # Disable all the library-specific components if the library itself

  3757. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3758. 

  3759. disable_components(){

  3760.     disabled ${1} && disable $(

  3761.         eval components="\$$(toupper ${1})_COMPONENTS"

  3762.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3763.     )

  3764. }

  3765. 

  3766. map 'disable_components $v' $LIBRARY_LIST

  3767. 

  3768. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3769. set >> $logfile

  3770. 

  3771. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3772. 

  3773. enabled ossfuzz && {

  3774.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3775.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3776. }

  3777. 

  3778. case "$toolchain" in

  3779.     *-asan)

  3780.         cc_default="${toolchain%-asan}"

  3781.         add_cflags  -fsanitize=address

  3782.         add_ldflags -fsanitize=address

  3783.     ;;

  3784.     *-msan)

  3785.         cc_default="${toolchain%-msan}"

  3786.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3787.         add_ldflags -fsanitize=memory

  3788.     ;;

  3789.     *-tsan)

  3790.         cc_default="${toolchain%-tsan}"

  3791.         add_cflags  -fsanitize=thread -fPIE

  3792.         add_ldflags -fsanitize=thread -pie

  3793.         case "$toolchain" in

  3794.             gcc-tsan)

  3795.                 add_cflags  -fPIC

  3796.                 add_ldflags -fPIC

  3797.                 ;;

  3798.         esac

  3799.     ;;

  3800.     *-usan)

  3801.         cc_default="${toolchain%-usan}"

  3802.         add_cflags  -fsanitize=undefined

  3803.         add_ldflags -fsanitize=undefined

  3804.     ;;

  3805.     valgrind-*)

  3806.         target_exec_default="valgrind"

  3807.         case "$toolchain" in

  3808.             valgrind-massif)

  3809.                 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"

  3810.                 ;;

  3811.             valgrind-memcheck)

  3812.                 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"

  3813.                 ;;

  3814.         esac

  3815.     ;;

  3816.     msvc)

  3817.         # Check whether the current MSVC version needs the C99 converter.

  3818.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3819.         # support enough of C99 to build ffmpeg. Default to the new

  3820.         # behaviour if the regexp was unable to match anything, since this

  3821.         # successfully parses the version number of existing supported

  3822.         # versions that require the converter (MSVC 2010 and 2012).

  3823.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3824.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3825.             cc_default="cl"

  3826.             cxx_default="cl"

  3827.         else

  3828.             cc_default="c99wrap cl"

  3829.             cxx_default="c99wrap cl"

  3830.         fi

  3831.         ld_default="$source_path/compat/windows/mslink"

  3832.         nm_default="dumpbin -symbols"

  3833.         ar_default="lib"

  3834.         case "$arch" in

  3835.         arm*)

  3836.             as_default="armasm"

  3837.             ;;

  3838.         esac

  3839.         target_os_default="win32"

  3840.         # Use a relative path for TMPDIR. This makes sure all the

  3841.         # ffconf temp files are written with a relative path, avoiding

  3842.         # issues with msys/win32 path conversion for MSVC parameters

  3843.         # such as -Fo<file> or -out:<file>.

  3844.         TMPDIR=.

  3845.     ;;

  3846.     icl)

  3847.         cc_default="icl"

  3848.         ld_default="xilink"

  3849.         nm_default="dumpbin -symbols"

  3850.         ar_default="xilib"

  3851.         target_os_default="win32"

  3852.         TMPDIR=.

  3853.     ;;

  3854.     gcov)

  3855.         add_cflags  -fprofile-arcs -ftest-coverage

  3856.         add_ldflags -fprofile-arcs -ftest-coverage

  3857.     ;;

  3858.     llvm-cov)

  3859.         add_cflags -fprofile-arcs -ftest-coverage

  3860.         add_ldflags --coverage

  3861.     ;;

  3862.     hardened)

  3863.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3864.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3865.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3866.         add_cflags   -fPIE

  3867.         add_ldexeflags -fPIE -pie

  3868.     ;;

  3869.     ?*)

  3870.         die "Unknown toolchain $toolchain"

  3871.     ;;

  3872. esac

  3873. 

  3874. test -n "$cross_prefix" && enable cross_compile

  3875. 

  3876. if enabled cross_compile; then

  3877.     test -n "$arch" && test -n "$target_os" ||

  3878.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3879. fi

  3880. 

  3881. ar_default="${cross_prefix}${ar_default}"

  3882. cc_default="${cross_prefix}${cc_default}"

  3883. cxx_default="${cross_prefix}${cxx_default}"

  3884. nm_default="${cross_prefix}${nm_default}"

  3885. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3886. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3887.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3888. else

  3889.     ranlib_default="${cross_prefix}${ranlib_default}"

  3890. fi

  3891. strip_default="${cross_prefix}${strip_default}"

  3892. windres_default="${cross_prefix}${windres_default}"

  3893. 

  3894. sysinclude_default="${sysroot}/usr/include"

  3895. 

  3896. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3897.     target_exec target_os x86asmexe nvcc

  3898. enabled cross_compile || host_cc_default=$cc

  3899. set_default host_cc

  3900. 

  3901. pkg_config_fail_message=""

  3902. if ! $pkg_config --version >/dev/null 2>&1; then

  3903.     warn "$pkg_config not found, library detection may fail."

  3904.     pkg_config=false

  3905. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3906.     pkg_config_fail_message="

  3907. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3908. fi

  3909. 

  3910. if test $doxygen != $doxygen_default && \

  3911.   ! $doxygen --version >/dev/null 2>&1; then

  3912.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3913. fi

  3914. 

  3915. exesuf() {

  3916.     case $1 in

  3917.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3918.     esac

  3919. }

  3920. 

  3921. EXESUF=$(exesuf $target_os)

  3922. HOSTEXESUF=$(exesuf $host_os)

  3923. 

  3924. # set temporary file name

  3925. : ${TMPDIR:=$TEMPDIR}

  3926. : ${TMPDIR:=$TMP}

  3927. : ${TMPDIR:=/tmp}

  3928. 

  3929. if [ -n "$tempprefix" ] ; then

  3930.     mktemp(){

  3931.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3932.         echo "$tmpname"

  3933.         mkdir "$tmpname"

  3934.     }

  3935. elif ! check_cmd mktemp -u XXXXXX; then

  3936.     # simple replacement for missing mktemp

  3937.     # NOT SAFE FOR GENERAL USE

  3938.     mktemp(){

  3939.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3940.         echo "$tmpname"

  3941.         mkdir "$tmpname"

  3942.     }

  3943. fi

  3944. 

  3945. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3946.     die "Unable to create temporary directory in $TMPDIR."

  3947. 

  3948. tmpfile(){

  3949.     tmp="${FFTMPDIR}/test"$2

  3950.     (set -C; exec > $tmp) 2> /dev/null ||

  3951.         die "Unable to create temporary file in $FFTMPDIR."

  3952.     eval $1=$tmp

  3953. }

  3954. 

  3955. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3956. trap 'exit 2' INT

  3957. 

  3958. tmpfile TMPASM .asm

  3959. tmpfile TMPC   .c

  3960. tmpfile TMPCPP .cpp

  3961. tmpfile TMPE   $EXESUF

  3962. tmpfile TMPH   .h

  3963. tmpfile TMPM   .m

  3964. tmpfile TMPO   .o

  3965. tmpfile TMPS   .S

  3966. tmpfile TMPSH  .sh

  3967. tmpfile TMPV   .ver

  3968. 

  3969. unset -f mktemp

  3970. 

  3971. chmod +x $TMPE

  3972. 

  3973. # make sure we can execute files in $TMPDIR

  3974. cat > $TMPSH 2>> $logfile <<EOF

  3975. #! /bin/sh

  3976. EOF

  3977. chmod +x $TMPSH >> $logfile 2>&1

  3978. if ! $TMPSH >> $logfile 2>&1; then

  3979.     cat <<EOF

  3980. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3981. variable to another directory and make sure that it is not mounted noexec.

  3982. EOF

  3983.     die "Sanity test failed."

  3984. fi

  3985. 

  3986. armasm_flags(){

  3987.     for flag; do

  3988.         case $flag in

  3989.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3990.             # be passed to gas-preprocessor

  3991.             -M[TD]*)                                            ;;

  3992.             *)                  echo $flag                      ;;

  3993.         esac

  3994.    done

  3995. }

  3996. 

  3997. ccc_flags(){

  3998.     for flag; do

  3999.         case $flag in

  4000.             -std=c99)           echo -c99                       ;;

  4001.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  4002.             -mieee)             echo -ieee                      ;;

  4003.             -O*|-fast)          echo $flag                      ;;

  4004.             -fno-math-errno)    echo -assume nomath_errno       ;;

  4005.             -g)                 echo -g3                        ;;

  4006.             -Wall)              echo -msg_enable level2         ;;

  4007.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  4008.             -Wl,*)              echo $flag                      ;;

  4009.             -f*|-W*)                                            ;;

  4010.             *)                  echo $flag                      ;;

  4011.         esac

  4012.    done

  4013. }

  4014. 

  4015. cparser_flags(){

  4016.     for flag; do

  4017.         case $flag in

  4018.             -Wno-switch)             echo -Wno-switch-enum ;;

  4019.             -Wno-format-zero-length) ;;

  4020.             -Wdisabled-optimization) ;;

  4021.             -Wno-pointer-sign)       echo -Wno-other ;;

  4022.             *)                       echo $flag ;;

  4023.         esac

  4024.     done

  4025. }

  4026. 

  4027. msvc_common_flags(){

  4028.     for flag; do

  4029.         case $flag in

  4030.             # In addition to specifying certain flags under the compiler

  4031.             # specific filters, they must be specified here as well or else the

  4032.             # generic catch all at the bottom will print the original flag.

  4033.             -Wall)                ;;

  4034.             -Wextra)              ;;

  4035.             -std=c99)             ;;

  4036.             # Common flags

  4037.             -fomit-frame-pointer) ;;

  4038.             -g)                   echo -Z7 ;;

  4039.             -fno-math-errno)      ;;

  4040.             -fno-common)          ;;

  4041.             -fno-signed-zeros)    ;;

  4042.             -fPIC)                ;;

  4043.             -mthumb)              ;;

  4044.             -march=*)             ;;

  4045.             -lz)                  echo zlib.lib ;;

  4046.             -lx264)               echo libx264.lib ;;

  4047.             -lstdc++)             ;;

  4048.             -l*)                  echo ${flag#-l}.lib ;;

  4049.             -LARGEADDRESSAWARE)   echo $flag ;;

  4050.             -L*)                  echo -libpath:${flag#-L} ;;

  4051.             *)                    echo $flag ;;

  4052.         esac

  4053.     done

  4054. }

  4055. 

  4056. msvc_flags(){

  4057.     msvc_common_flags "$@"

  4058.     for flag; do

  4059.         case $flag in

  4060.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4061.                                        -wd4554 ;;

  4062.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4063.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4064.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4065.                                        -wd4307 \

  4066.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4067.         esac

  4068.     done

  4069. }

  4070. 

  4071. icl_flags(){

  4072.     msvc_common_flags "$@"

  4073.     for flag; do

  4074.         case $flag in

  4075.             # Despite what Intel's documentation says -Wall, which is supported

  4076.             # on Windows, does enable remarks so disable them here.

  4077.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4078.             -std=c99)             echo -Qstd=c99 ;;

  4079.             -flto)                echo -ipo ;;

  4080.         esac

  4081.     done

  4082. }

  4083. 

  4084. icc_flags(){

  4085.     for flag; do

  4086.         case $flag in

  4087.             -flto)                echo -ipo ;;

  4088.             *)                    echo $flag ;;

  4089.         esac

  4090.     done

  4091. }

  4092. 

  4093. pgi_flags(){

  4094.     for flag; do

  4095.         case $flag in

  4096.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  4097.             -fomit-frame-pointer) echo -Mnoframe ;;

  4098.             -g)                   echo -gopt ;;

  4099.             *)                    echo $flag ;;

  4100.         esac

  4101.     done

  4102. }

  4103. 

  4104. suncc_flags(){

  4105.     for flag; do

  4106.         case $flag in

  4107.             -march=*|-mcpu=*)

  4108.                 case "${flag#*=}" in

  4109.                     native)                   echo -xtarget=native       ;;

  4110.                     v9|niagara)               echo -xarch=sparc          ;;

  4111.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4112.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4113.                     i586|pentium)             echo -xchip=pentium        ;;

  4114.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4115.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4116.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4117.                     pentium4*)          echo -xtarget=pentium4           ;;

  4118.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4119.                     *-sse3)             echo -xarch=sse3                 ;;

  4120.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4121.                     bonnell)                   echo -xarch=ssse3         ;;

  4122.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4123.                     westmere)                  echo -xtarget=westmere    ;;

  4124.                     silvermont)                echo -xarch=sse4_2        ;;

  4125.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4126.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4127.                                                echo -xarch=avx           ;;

  4128.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4129.                     btver1)                    echo -xarch=amdsse4a      ;;

  4130.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4131.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4132.                     k8|opteron|athlon64|athlon-fx)

  4133.                                                echo -xarch=sse2a         ;;

  4134.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4135.                 esac

  4136.                 ;;

  4137.             -std=c99)             echo -xc99              ;;

  4138.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4139.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4140.             -W*,*)                echo $flag              ;;

  4141.             -f*-*|-W*|-mimpure-text)                      ;;

  4142.             -shared)              echo -G                 ;;

  4143.             *)                    echo $flag              ;;

  4144.         esac

  4145.     done

  4146. }

  4147. 

  4148. tms470_flags(){

  4149.     for flag; do

  4150.         case $flag in

  4151.             -march=*|-mcpu=*)

  4152.                 case "${flag#*=}" in

  4153.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  4154.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  4155.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  4156.                     armv6*|arm11*)          echo -mv=6   ;;

  4157.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  4158.                                             echo -mv=5e  ;;

  4159.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  4160.                 esac

  4161.                 ;;

  4162.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  4163.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  4164.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  4165.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  4166.             -msoft-float)   echo --float_support=vfplib       ;;

  4167.             -O[0-3]|-mf=*)  echo $flag                        ;;

  4168.             -g)             echo -g -mn                       ;;

  4169.             -pds=*)         echo $flag                        ;;

  4170.             -D*|-I*)        echo $flag                        ;;

  4171.             --gcc|--abi=*)  echo $flag                        ;;

  4172.             -me)            echo $flag                        ;;

  4173.         esac

  4174.     done

  4175. }

  4176. 

  4177. probe_cc(){

  4178.     pfx=$1

  4179.     _cc=$2

  4180.     first=$3

  4181. 

  4182.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4183.     unset _ld_o _ldflags _ld_lib _ld_path

  4184.     unset _depflags _DEPCMD _DEPFLAGS

  4185.     _flags_filter=echo

  4186. 

  4187.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4188.         true # no-op to avoid reading stdin in following checks

  4189.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4190.         _type=llvm_gcc

  4191.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4192.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4193.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4194.         _cflags_speed='-O3'

  4195.         _cflags_size='-Os'

  4196.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4197.         _type=gcc

  4198.         gcc_version=$($_cc --version | head -n1)

  4199.         gcc_basever=$($_cc -dumpversion)

  4200.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4201.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4202.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4203.         case $gcc_basever in

  4204.             2) ;;

  4205.             2.*) ;;

  4206.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4207.         esac

  4208.         if [ "$first" = true ]; then

  4209.             case $gcc_basever in

  4210.                 4.2*)

  4211.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4212.             esac

  4213.         fi

  4214.         _cflags_speed='-O3'

  4215.         _cflags_size='-Os'

  4216.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4217.         _type=icc

  4218.         _ident=$($_cc --version | head -n1)

  4219.         _depflags='-MMD'

  4220.         _cflags_speed='-O3'

  4221.         _cflags_size='-Os'

  4222.         _cflags_noopt='-O1'

  4223.         _flags_filter=icc_flags

  4224.     elif $_cc -v 2>&1 | grep -q xlc; then

  4225.         _type=xlc

  4226.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4227.         _cflags_speed='-O5'

  4228.         _cflags_size='-O5 -qcompact'

  4229.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4230.         _type=ccc

  4231.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4232.         _DEPFLAGS='-M'

  4233.         _cflags_speed='-fast'

  4234.         _cflags_size='-O1'

  4235.         _flags_filter=ccc_flags

  4236.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4237.         test -d "$sysroot" || die "No valid sysroot specified."

  4238.         _type=armcc

  4239.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4240.         armcc_conf="$PWD/armcc.conf"

  4241.         $_cc --arm_linux_configure                 \

  4242.              --arm_linux_config_file="$armcc_conf" \

  4243.              --configure_sysroot="$sysroot"        \

  4244.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4245.              die "Error creating armcc configuration file."

  4246.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4247.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4248.         as_default="${cross_prefix}gcc"

  4249.         _depflags='-MMD'

  4250.         _cflags_speed='-O3'

  4251.         _cflags_size='-Os'

  4252.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4253.         _type=tms470

  4254.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4255.         _flags='--gcc --abi=eabi -me'

  4256.         _cc_e='-ppl -fe=$@'

  4257.         _cc_o='-fe=$@'

  4258.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4259.         _cflags_speed='-O3 -mf=5'

  4260.         _cflags_size='-O3 -mf=2'

  4261.         _flags_filter=tms470_flags

  4262.     elif $_cc -v 2>&1 | grep -q clang; then

  4263.         _type=clang

  4264.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4265.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4266.         _cflags_speed='-O3'

  4267.         _cflags_size='-Oz'

  4268.     elif $_cc -V 2>&1 | grep -q Sun; then

  4269.         _type=suncc

  4270.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4271.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4272.         _DEPFLAGS='-xM1 -xc99'

  4273.         _ldflags='-std=c99'

  4274.         _cflags_speed='-O5'

  4275.         _cflags_size='-O5 -xspace'

  4276.         _flags_filter=suncc_flags

  4277.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4278.         _type=pathscale

  4279.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4280.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4281.         _cflags_speed='-O2'

  4282.         _cflags_size='-Os'

  4283.         _flags_filter='filter_out -Wdisabled-optimization'

  4284.     elif $_cc -v 2>&1 | grep -q Open64; then

  4285.         _type=open64

  4286.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4287.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4288.         _cflags_speed='-O2'

  4289.         _cflags_size='-Os'

  4290.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4291.     elif $_cc -V 2>&1 | grep -q Portland; then

  4292.         _type=pgi

  4293.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4294.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4295.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4296.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4297.         _cflags_noopt="-O"

  4298.         _flags_filter=pgi_flags

  4299.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4300.         _type=armasm

  4301.         _ident=$($_cc | head -n1)

  4302.         # 4509: "This form of conditional instruction is deprecated"

  4303.         _flags="-nologo -ignore 4509"

  4304.         _flags_filter=armasm_flags

  4305.     elif $_cc 2>&1 | grep -q Intel; then

  4306.         _type=icl

  4307.         _ident=$($_cc 2>&1 | head -n1)

  4308.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4309.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4310.         # versions (tested) as well.

  4311.         _cflags_speed="-O2"

  4312.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4313.         if $_cc 2>&1 | grep -q Linker; then

  4314.             _ld_o='-out:$@'

  4315.         else

  4316.             _ld_o='-Fe$@'

  4317.         fi

  4318.         _cc_o='-Fo$@'

  4319.         _cc_e='-P'

  4320.         _flags_filter=icl_flags

  4321.         _ld_lib='lib%.a'

  4322.         _ld_path='-libpath:'

  4323.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4324.         _flags='-nologo -Qdiag-error:4044,10157'

  4325.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4326.         # with MSVC which enables it by default.

  4327.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4328.         disable stripping

  4329.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4330.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4331.         # the -? parameter gives the help output which contains an identifyable

  4332.         # string, while it gives an error in other modes.

  4333.         _type=lld-link

  4334.         # The link.exe mode doesn't have a switch for getting the version,

  4335.         # but we can force it back to gnu mode and get the version from there.

  4336.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4337.         _ld_o='-out:$@'

  4338.         _flags_filter=msvc_flags

  4339.         _ld_lib='lib%.a'

  4340.         _ld_path='-libpath:'

  4341.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4342.         _type=msvc

  4343.         _ident=$($_cc 2>&1 | head -n1)

  4344.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4345.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4346.         _cflags_speed="-O2"

  4347.         _cflags_size="-O1"

  4348.         _cflags_noopt="-O1"

  4349.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4350.             _ld_o='-out:$@'

  4351.         else

  4352.             _ld_o='-Fe$@'

  4353.         fi

  4354.         _cc_o='-Fo$@'

  4355.         _cc_e='-P -Fi$@'

  4356.         _flags_filter=msvc_flags

  4357.         _ld_lib='lib%.a'

  4358.         _ld_path='-libpath:'

  4359.         _flags='-nologo'

  4360.         disable stripping

  4361.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4362.         _type=cparser

  4363.         _ident=$($_cc --version | head -n1)

  4364.         _depflags='-MMD'

  4365.         _cflags_speed='-O4'

  4366.         _cflags_size='-O2'

  4367.         _flags_filter=cparser_flags

  4368.     fi

  4369. 

  4370.     eval ${pfx}_type=\$_type

  4371.     eval ${pfx}_ident=\$_ident

  4372. }

  4373. 

  4374. set_ccvars(){

  4375.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4376.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4377.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4378. 

  4379.     if [ -n "$_depflags" ]; then

  4380.         eval ${1}_DEPFLAGS=\$_depflags

  4381.     else

  4382.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4383.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4384.         eval DEP${1}FLAGS=\$_flags

  4385.     fi

  4386. }

  4387. 

  4388. probe_cc cc "$cc" "true"

  4389. cflags_filter=$_flags_filter

  4390. cflags_speed=$_cflags_speed

  4391. cflags_size=$_cflags_size

  4392. cflags_noopt=$_cflags_noopt

  4393. add_cflags $_flags $_cflags

  4394. cc_ldflags=$_ldflags

  4395. set_ccvars CC

  4396. set_ccvars CXX

  4397. 

  4398. probe_cc hostcc "$host_cc"

  4399. host_cflags_filter=$_flags_filter

  4400. host_cflags_speed=$_cflags_speed

  4401. add_host_cflags  $_flags $_cflags

  4402. set_ccvars HOSTCC

  4403. 

  4404. test -n "$cc_type" && enable $cc_type ||

  4405.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4406. 

  4407. : ${as_default:=$cc}

  4408. : ${objcc_default:=$cc}

  4409. : ${dep_cc_default:=$cc}

  4410. : ${ld_default:=$cc}

  4411. : ${host_ld_default:=$host_cc}

  4412. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4413. 

  4414. probe_cc as "$as"

  4415. asflags_filter=$_flags_filter

  4416. add_asflags $_flags $_cflags

  4417. set_ccvars AS

  4418. 

  4419. probe_cc objcc "$objcc"

  4420. objcflags_filter=$_flags_filter

  4421. add_objcflags $_flags $_cflags

  4422. set_ccvars OBJC

  4423. 

  4424. probe_cc ld "$ld"

  4425. ldflags_filter=$_flags_filter

  4426. add_ldflags $_flags $_ldflags

  4427. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4428. LD_O=${_ld_o-$LD_O}

  4429. LD_LIB=${_ld_lib-$LD_LIB}

  4430. LD_PATH=${_ld_path-$LD_PATH}

  4431. 

  4432. probe_cc hostld "$host_ld"

  4433. host_ldflags_filter=$_flags_filter

  4434. add_host_ldflags $_flags $_ldflags

  4435. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4436. 

  4437. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4438.     probe_cc depcc "$dep_cc"

  4439.     CCDEP=${_DEPCMD:-$DEPCMD}

  4440.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4441.     DEPCCFLAGS=$_flags

  4442. fi

  4443. 

  4444. if $ar 2>&1 | grep -q Microsoft; then

  4445.     arflags="-nologo"

  4446.     ar_o='-out:$@'

  4447. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4448.     arflags="rq"

  4449.     ar_o='$@'

  4450. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4451.     arflags='-Xany -r -c'

  4452.     ar_o='$@'

  4453. elif $ar 2>&1 | grep -q "\[D\] "; then

  4454.     arflags="rcD"

  4455.     ar_o='$@'

  4456. else

  4457.     arflags="rc"

  4458.     ar_o='$@'

  4459. fi

  4460. 

  4461. add_cflags $extra_cflags

  4462. add_cxxflags $extra_cxxflags

  4463. add_objcflags $extra_objcflags

  4464. add_asflags $extra_cflags

  4465. 

  4466. if test -n "$sysroot"; then

  4467.     case "$cc_type" in

  4468.         gcc|llvm_gcc|clang)

  4469.             add_cppflags --sysroot="$sysroot"

  4470.             add_ldflags --sysroot="$sysroot"

  4471. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4472.             add_cppflags -isysroot "$sysroot"

  4473.             add_ldflags -isysroot "$sysroot"

  4474.         ;;

  4475.         tms470)

  4476.             add_cppflags -I"$sysinclude"

  4477.             add_ldflags  --sysroot="$sysroot"

  4478.         ;;

  4479.     esac

  4480. fi

  4481. 

  4482. if test "$cpu" = host; then

  4483.     enabled cross_compile &&

  4484.         die "--cpu=host makes no sense when cross-compiling."

  4485. 

  4486.     case "$cc_type" in

  4487.         gcc|llvm_gcc)

  4488.             check_native(){

  4489.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4490.                 sed -n "/cc1.*$1=/{

  4491.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4492.                             p

  4493.                             q

  4494.                         }" $TMPE

  4495.             }

  4496.             cpu=$(check_native -march || check_native -mcpu)

  4497.         ;;

  4498.         clang)

  4499.             check_native(){

  4500.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4501.                 sed -n "/cc1.*-target-cpu /{

  4502.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4503.                             p

  4504.                             q

  4505.                         }" $TMPE

  4506.             }

  4507.             cpu=$(check_native -march)

  4508.         ;;

  4509.     esac

  4510. 

  4511.     test "${cpu:-host}" = host &&

  4512.         die "--cpu=host not supported with compiler $cc"

  4513. fi

  4514. 

  4515. # Deal with common $arch aliases

  4516. case "$arch" in

  4517.     aarch64|arm64)

  4518.         arch="aarch64"

  4519.     ;;

  4520.     arm*|iPad*|iPhone*)

  4521.         arch="arm"

  4522.     ;;

  4523.     mips*|IP*)

  4524.         case "$arch" in

  4525.         *el)

  4526.             add_cppflags -EL

  4527.             add_ldflags -EL

  4528.         ;;

  4529.         *eb)

  4530.             add_cppflags -EB

  4531.             add_ldflags -EB

  4532.         ;;

  4533.         esac

  4534.         arch="mips"

  4535.     ;;

  4536.     parisc*|hppa*)

  4537.         arch="parisc"

  4538.     ;;

  4539.     "Power Macintosh"|ppc*|powerpc*)

  4540.         arch="ppc"

  4541.     ;;

  4542.     s390|s390x)

  4543.         arch="s390"

  4544.     ;;

  4545.     sh4|sh)

  4546.         arch="sh4"

  4547.     ;;

  4548.     sun4*|sparc*)

  4549.         arch="sparc"

  4550.     ;;

  4551.     tilegx|tile-gx)

  4552.         arch="tilegx"

  4553.     ;;

  4554.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4555.         arch="x86"

  4556.     ;;

  4557. esac

  4558. 

  4559. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4560. enable $arch

  4561. 

  4562. # Add processor-specific flags

  4563. if enabled aarch64; then

  4564. 

  4565.     case $cpu in

  4566.         armv*)

  4567.             cpuflags="-march=$cpu"

  4568.         ;;

  4569.         *)

  4570.             cpuflags="-mcpu=$cpu"

  4571.         ;;

  4572.     esac

  4573. 

  4574. elif enabled alpha; then

  4575. 

  4576.     cpuflags="-mcpu=$cpu"

  4577. 

  4578. elif enabled arm; then

  4579. 

  4580.     check_arm_arch() {

  4581.         check_cpp_condition stddef.h \

  4582.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4583.             $cpuflags

  4584.     }

  4585. 

  4586.     probe_arm_arch() {

  4587.         if   check_arm_arch 4;        then echo armv4

  4588.         elif check_arm_arch 4T;       then echo armv4t

  4589.         elif check_arm_arch 5;        then echo armv5

  4590.         elif check_arm_arch 5E;       then echo armv5e

  4591.         elif check_arm_arch 5T;       then echo armv5t

  4592.         elif check_arm_arch 5TE;      then echo armv5te

  4593.         elif check_arm_arch 5TEJ;     then echo armv5te

  4594.         elif check_arm_arch 6;        then echo armv6

  4595.         elif check_arm_arch 6J;       then echo armv6j

  4596.         elif check_arm_arch 6K;       then echo armv6k

  4597.         elif check_arm_arch 6Z;       then echo armv6z

  4598.         elif check_arm_arch 6ZK;      then echo armv6zk

  4599.         elif check_arm_arch 6T2;      then echo armv6t2

  4600.         elif check_arm_arch 7;        then echo armv7

  4601.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4602.         elif check_arm_arch 7S;       then echo armv7-a

  4603.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4604.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4605.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4606.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4607.         fi

  4608.     }

  4609. 

  4610.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4611. 

  4612.     case $cpu in

  4613.         armv*)

  4614.             cpuflags="-march=$cpu"

  4615.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4616.         ;;

  4617.         *)

  4618.             cpuflags="-mcpu=$cpu"

  4619.             case $cpu in

  4620.                 cortex-a*)                               subarch=armv7a  ;;

  4621.                 cortex-r*)                               subarch=armv7r  ;;

  4622.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4623.                 arm11*)                                  subarch=armv6   ;;

  4624.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4625.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4626.                 *)                             subarch=$(probe_arm_arch) ;;

  4627.             esac

  4628.         ;;

  4629.     esac

  4630. 

  4631.     case "$subarch" in

  4632.         armv5t*)    enable fast_clz                ;;

  4633.         armv[6-8]*)

  4634.             enable fast_clz

  4635.             disabled fast_unaligned || enable fast_unaligned

  4636.             ;;

  4637.     esac

  4638. 

  4639. elif enabled avr32; then

  4640. 

  4641.     case $cpu in

  4642.         ap7[02]0[0-2])

  4643.             subarch="avr32_ap"

  4644.             cpuflags="-mpart=$cpu"

  4645.         ;;

  4646.         ap)

  4647.             subarch="avr32_ap"

  4648.             cpuflags="-march=$cpu"

  4649.         ;;

  4650.         uc3[ab]*)

  4651.             subarch="avr32_uc"

  4652.             cpuflags="-mcpu=$cpu"

  4653.         ;;

  4654.         uc)

  4655.             subarch="avr32_uc"

  4656.             cpuflags="-march=$cpu"

  4657.         ;;

  4658.     esac

  4659. 

  4660. elif enabled bfin; then

  4661. 

  4662.     cpuflags="-mcpu=$cpu"

  4663. 

  4664. elif enabled mips; then

  4665. 

  4666.     cpuflags="-march=$cpu"

  4667. 

  4668.     if [ "$cpu" != "generic" ]; then

  4669.         disable mips32r2

  4670.         disable mips32r5

  4671.         disable mips64r2

  4672.         disable mips32r6

  4673.         disable mips64r6

  4674.         disable loongson2

  4675.         disable loongson3

  4676. 

  4677.         case $cpu in

  4678.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4679.                 enable mips32r2

  4680.                 disable msa

  4681.             ;;

  4682.             p5600|i6400|p6600)

  4683.                 disable mipsdsp

  4684.                 disable mipsdspr2

  4685.             ;;

  4686.             loongson*)

  4687.                 enable loongson2

  4688.                 enable loongson3

  4689.                 enable local_aligned

  4690.                 enable simd_align_16

  4691.                 enable fast_64bit

  4692.                 enable fast_clz

  4693.                 enable fast_cmov

  4694.                 enable fast_unaligned

  4695.                 disable aligned_stack

  4696.                 disable mipsfpu

  4697.                 disable mipsdsp

  4698.                 disable mipsdspr2

  4699.                 case $cpu in

  4700.                     loongson3*)

  4701.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4702.                     ;;

  4703.                     loongson2e)

  4704.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4705.                     ;;

  4706.                     loongson2f)

  4707.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4708.                     ;;

  4709.                 esac

  4710.             ;;

  4711.             *)

  4712.                 # Unknown CPU. Disable everything.

  4713.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4714.                 disable mipsfpu

  4715.                 disable mipsdsp

  4716.                 disable mipsdspr2

  4717.                 disable msa

  4718.                 disable mmi

  4719.             ;;

  4720.         esac

  4721. 

  4722.         case $cpu in

  4723.             24kc)

  4724.                 disable mipsfpu

  4725.                 disable mipsdsp

  4726.                 disable mipsdspr2

  4727.             ;;

  4728.             24kf*)

  4729.                 disable mipsdsp

  4730.                 disable mipsdspr2

  4731.             ;;

  4732.             24kec|34kc|1004kc)

  4733.                 disable mipsfpu

  4734.                 disable mipsdspr2

  4735.             ;;

  4736.             24kef*|34kf*|1004kf*)

  4737.                 disable mipsdspr2

  4738.             ;;

  4739.             74kc)

  4740.                 disable mipsfpu

  4741.             ;;

  4742.             p5600)

  4743.                 enable mips32r5

  4744.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4745.             ;;

  4746.             i6400)

  4747.                 enable mips64r6

  4748.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4749.             ;;

  4750.             p6600)

  4751.                 enable mips64r6

  4752.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4753.             ;;

  4754.         esac

  4755.     else

  4756.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4757.         warn 'generic cpu selected'

  4758.     fi

  4759. 

  4760. elif enabled ppc; then

  4761. 

  4762.     disable ldbrx

  4763. 

  4764.     case $(tolower $cpu) in

  4765.         601|ppc601|powerpc601)

  4766.             cpuflags="-mcpu=601"

  4767.             disable altivec

  4768.         ;;

  4769.         603*|ppc603*|powerpc603*)

  4770.             cpuflags="-mcpu=603"

  4771.             disable altivec

  4772.         ;;

  4773.         604*|ppc604*|powerpc604*)

  4774.             cpuflags="-mcpu=604"

  4775.             disable altivec

  4776.         ;;

  4777.         g3|75*|ppc75*|powerpc75*)

  4778.             cpuflags="-mcpu=750"

  4779.             disable altivec

  4780.         ;;

  4781.         g4|745*|ppc745*|powerpc745*)

  4782.             cpuflags="-mcpu=7450"

  4783.             disable vsx

  4784.         ;;

  4785.         74*|ppc74*|powerpc74*)

  4786.             cpuflags="-mcpu=7400"

  4787.             disable vsx

  4788.         ;;

  4789.         g5|970|ppc970|powerpc970)

  4790.             cpuflags="-mcpu=970"

  4791.             disable vsx

  4792.         ;;

  4793.         power[3-6]*)

  4794.             cpuflags="-mcpu=$cpu"

  4795.             disable vsx

  4796.         ;;

  4797.         power[7-8]*)

  4798.             cpuflags="-mcpu=$cpu"

  4799.         ;;

  4800.         cell)

  4801.             cpuflags="-mcpu=cell"

  4802.             enable ldbrx

  4803.             disable vsx

  4804.         ;;

  4805.         e500mc)

  4806.             cpuflags="-mcpu=e500mc"

  4807.             disable altivec

  4808.         ;;

  4809.         e500v2)

  4810.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4811.             disable altivec

  4812.             disable dcbzl

  4813.         ;;

  4814.         e500)

  4815.             cpuflags="-mcpu=8540 -mhard-float"

  4816.             disable altivec

  4817.             disable dcbzl

  4818.         ;;

  4819.     esac

  4820. 

  4821. elif enabled sparc; then

  4822. 

  4823.     case $cpu in

  4824.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4825.             cpuflags="-mcpu=$cpu"

  4826.         ;;

  4827.         ultrasparc*|niagara[234])

  4828.             cpuflags="-mcpu=$cpu"

  4829.         ;;

  4830.     esac

  4831. 

  4832. elif enabled x86; then

  4833. 

  4834.     case $cpu in

  4835.         i[345]86|pentium)

  4836.             cpuflags="-march=$cpu"

  4837.             disable i686

  4838.             disable mmx

  4839.         ;;

  4840.         # targets that do NOT support nopl and conditional mov (cmov)

  4841.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4842.             cpuflags="-march=$cpu"

  4843.             disable i686

  4844.         ;;

  4845.         # targets that do support nopl and conditional mov (cmov)

  4846.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4847.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4848.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4849.             cpuflags="-march=$cpu"

  4850.             enable i686

  4851.             enable fast_cmov

  4852.         ;;

  4853.         # targets that do support conditional mov but on which it's slow

  4854.         pentium4|pentium4m|prescott|nocona)

  4855.             cpuflags="-march=$cpu"

  4856.             enable i686

  4857.             disable fast_cmov

  4858.         ;;

  4859.     esac

  4860. 

  4861. fi

  4862. 

  4863. if [ "$cpu" != generic ]; then

  4864.     add_cflags  $cpuflags

  4865.     add_asflags $cpuflags

  4866.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4867. fi

  4868. 

  4869. # compiler sanity check

  4870. check_exec <<EOF

  4871. int main(void){ return 0; }

  4872. EOF

  4873. if test "$?" != 0; then

  4874.     echo "$cc is unable to create an executable file."

  4875.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4876.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4877.         echo "Only do this if you know what cross compiling means."

  4878.     fi

  4879.     die "C compiler test failed."

  4880. fi

  4881. 

  4882. add_cppflags -D_ISOC99_SOURCE

  4883. add_cxxflags -D__STDC_CONSTANT_MACROS

  4884. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4885. 

  4886. # some compilers silently accept -std=c11, so we also need to check that the

  4887. # version macro is defined properly

  4888. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4889.     add_cflags -std=c11 ||

  4890.     check_cflags -std=c99

  4891. 

  4892. check_cppflags -D_FILE_OFFSET_BITS=64

  4893. check_cppflags -D_LARGEFILE_SOURCE

  4894. 

  4895. add_host_cppflags -D_ISOC99_SOURCE

  4896. check_host_cflags -std=c99

  4897. check_host_cflags -Wall

  4898. check_host_cflags $host_cflags_speed

  4899. 

  4900. check_64bit(){

  4901.     arch32=$1

  4902.     arch64=$2

  4903.     expr=$3

  4904.     check_code cc "" "int test[2*($expr) - 1]" &&

  4905.         subarch=$arch64 || subarch=$arch32

  4906. }

  4907. 

  4908. case "$arch" in

  4909.     aarch64|alpha|ia64)

  4910.         spic=$shared

  4911.     ;;

  4912.     mips)

  4913.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4914.         spic=$shared

  4915.     ;;

  4916.     parisc)

  4917.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4918.         spic=$shared

  4919.     ;;

  4920.     ppc)

  4921.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4922.         spic=$shared

  4923.     ;;

  4924.     s390)

  4925.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4926.         spic=$shared

  4927.     ;;

  4928.     sparc)

  4929.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4930.         spic=$shared

  4931.     ;;

  4932.     x86)

  4933.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4934.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4935.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4936.             subarch=x86_64

  4937.         if test "$subarch" = "x86_64"; then

  4938.             spic=$shared

  4939.         fi

  4940.     ;;

  4941.     ppc)

  4942.         check_cc <<EOF && subarch="ppc64"

  4943.         int test[(int)sizeof(char*) - 7];

  4944. EOF

  4945.     ;;

  4946. esac

  4947. 

  4948. enable $subarch

  4949. enabled spic && enable_weak pic

  4950. 

  4951. enabled x86_64 && objformat=elf64 || objformat="elf32"

  4952. 

  4953. # OS specific

  4954. case $target_os in

  4955.     aix)

  4956.         SHFLAGS=-shared

  4957.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4958.         enabled shared && add_ldflags -Wl,-brtl

  4959.         ;;

  4960.     android)

  4961.         disable symver

  4962.         enable section_data_rel_ro

  4963.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4964.         SLIB_INSTALL_LINKS=

  4965.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4966.         ;;

  4967.     haiku)

  4968.         prefix_default="/boot/common"

  4969.         network_extralibs="-lnetwork"

  4970.         host_extralibs=

  4971.         ;;

  4972.     sunos)

  4973.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4974.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4975.         network_extralibs="-lsocket -lnsl"

  4976.         add_cppflags -D__EXTENSIONS__

  4977.         # When using suncc to build, the Solaris linker will mark

  4978.         # an executable with each instruction set encountered by

  4979.         # the Solaris assembler.  As our libraries contain their own

  4980.         # guards for processor-specific code, instead suppress

  4981.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4982.         enabled_all suncc x86 &&

  4983.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4984.             add_ldflags -Wl,-M,mapfile

  4985.         nm_default='nm -P -g'

  4986.         version_script='-M'

  4987.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4988.         ;;

  4989.     netbsd)

  4990.         disable symver

  4991.         oss_indev_extralibs="-lossaudio"

  4992.         oss_outdev_extralibs="-lossaudio"

  4993.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4994.         ;;

  4995.     openbsd|bitrig)

  4996.         disable symver

  4997.         SHFLAGS='-shared'

  4998.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4999.         SLIB_INSTALL_LINKS=

  5000.         oss_indev_extralibs="-lossaudio"

  5001.         oss_outdev_extralibs="-lossaudio"

  5002.         ;;

  5003.     dragonfly)

  5004.         disable symver

  5005.         ;;

  5006.     freebsd)

  5007.         ;;

  5008.     bsd/os)

  5009.         add_extralibs -lpoll -lgnugetopt

  5010.         strip="strip -d"

  5011.         ;;

  5012.     darwin)

  5013.         enabled ppc && add_asflags -force_cpusubtype_ALL

  5014.         install_name_dir_default='$(SHLIBDIR)'

  5015.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  5016.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  5017.         strip="${strip} -x"

  5018.         add_ldflags -Wl,-dynamic,-search_paths_first

  5019.         check_cflags -Werror=partial-availability

  5020.         SLIBSUF=".dylib"

  5021.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  5022.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  5023.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  5024.         enabled_any pic shared x86_64 ||

  5025.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  5026.         check_header dispatch/dispatch.h &&

  5027.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  5028.         version_script='-exported_symbols_list'

  5029.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  5030.         ;;

  5031.     msys*)

  5032.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  5033.         ;;

  5034.     mingw32*|mingw64*)

  5035.         if test $target_os = "mingw32ce"; then

  5036.             disable network

  5037.         else

  5038.             target_os=mingw32

  5039.         fi

  5040.         LIBTARGET=i386

  5041.         if enabled x86_64; then

  5042.             LIBTARGET="i386:x86-64"

  5043.         elif enabled arm; then

  5044.             LIBTARGET=arm-wince

  5045.         fi

  5046.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5047.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  5048.         shlibdir_default="$bindir_default"

  5049.         SLIBPREF=""

  5050.         SLIBSUF=".dll"

  5051.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5052.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5053.         dlltool="${cross_prefix}dlltool"

  5054.         if check_cmd lib.exe -list; then

  5055.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5056.             if enabled x86_64; then

  5057.                 LIBTARGET=x64

  5058.             fi

  5059.         elif check_cmd $dlltool --version; then

  5060.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'

  5061.         fi

  5062.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5063.         SLIB_INSTALL_LINKS=

  5064.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5065.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5066.         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'

  5067.         enabled x86_64 && objformat="win64" || objformat="win32"

  5068.         ranlib=:

  5069.         enable dos_paths

  5070.         check_ldflags -Wl,--nxcompat,--dynamicbase

  5071.         # Lets work around some stupidity in binutils.

  5072.         # ld will strip relocations from executables even though we need them

  5073.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  5074.         # however ld then forgets what the entry point should be (oops) so we

  5075.         # have to manually (re)set it.

  5076.         if enabled x86_32; then

  5077.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  5078.         elif enabled x86_64; then

  5079.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5080.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5081.             # Set image base >4GB for extra entropy with HEASLR

  5082.             add_ldexeflags -Wl,--image-base,0x140000000

  5083.             append SHFLAGS -Wl,--image-base,0x180000000

  5084.         fi

  5085.         ;;

  5086.     win32|win64)

  5087.         disable symver

  5088.         if enabled shared; then

  5089.             # Link to the import library instead of the normal static library

  5090.             # for shared libs.

  5091.             LD_LIB='%.lib'

  5092.             # Cannot build both shared and static libs with MSVC or icl.

  5093.             disable static

  5094.         fi

  5095.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5096.         shlibdir_default="$bindir_default"

  5097.         SLIBPREF=""

  5098.         SLIBSUF=".dll"

  5099.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5100.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5101.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5102.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5103.         SLIB_INSTALL_LINKS=

  5104.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5105.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5106.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5107.         enabled x86_64 && objformat="win64" || objformat="win32"

  5108.         ranlib=:

  5109.         enable dos_paths

  5110.         ;;

  5111.     cygwin*)

  5112.         target_os=cygwin

  5113.         shlibdir_default="$bindir_default"

  5114.         SLIBPREF="cyg"

  5115.         SLIBSUF=".dll"

  5116.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5117.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5118.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5119.         SLIB_INSTALL_LINKS=

  5120.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5121.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5122.         enabled x86_64 && objformat="win64" || objformat="win32"

  5123.         enable dos_paths

  5124.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5125.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5126.         ;;

  5127.     *-dos|freedos|opendos)

  5128.         network_extralibs="-lsocket"

  5129.         objformat="coff"

  5130.         enable dos_paths

  5131.         add_cppflags -U__STRICT_ANSI__

  5132.         ;;

  5133.     linux)

  5134.         enable section_data_rel_ro

  5135.         enabled_any arm aarch64 && enable_weak linux_perf

  5136.         ;;

  5137.     irix*)

  5138.         target_os=irix

  5139.         ranlib="echo ignoring ranlib"

  5140.         ;;

  5141.     os/2*)

  5142.         strip="lxlite -CS"

  5143.         striptype=""

  5144.         objformat="aout"

  5145.         add_cppflags -D_GNU_SOURCE

  5146.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5147.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5148.         LIBSUF="_s.a"

  5149.         SLIBPREF=""

  5150.         SLIBSUF=".dll"

  5151.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5152.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5153.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5154.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5155.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5156.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5157.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5158.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5159.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5160.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5161.         SLIB_INSTALL_LINKS=

  5162.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5163.         enable dos_paths

  5164.         enable_weak os2threads

  5165.         ;;

  5166.     gnu/kfreebsd)

  5167.         add_cppflags -D_BSD_SOURCE

  5168.         ;;

  5169.     gnu)

  5170.         ;;

  5171.     qnx)

  5172.         add_cppflags -D_QNX_SOURCE

  5173.         network_extralibs="-lsocket"

  5174.         ;;

  5175.     symbian)

  5176.         SLIBSUF=".dll"

  5177.         enable dos_paths

  5178.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5179.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5180.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5181.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5182.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5183.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5184.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5185.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5186.         ;;

  5187.     osf1)

  5188.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5189.         ;;

  5190.     minix)

  5191.         ;;

  5192.     none)

  5193.         ;;

  5194.     *)

  5195.         die "Unknown OS '$target_os'."

  5196.         ;;

  5197. esac

  5198. 

  5199. # test if creating links works

  5200. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5201. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5202. mkdir "$link_dest"

  5203. $ln_s "$link_dest" "$link_name"

  5204. touch "$link_dest/test_file"

  5205. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5206.     # create link to source path

  5207.     [ -e src ] && rm src

  5208.     $ln_s "$source_path" src

  5209.     source_link=src

  5210. else

  5211.     # creating directory links doesn't work

  5212.     # fall back to using the full source path

  5213.     source_link="$source_path"

  5214. fi

  5215. # cleanup

  5216. rm -r "$link_dest"

  5217. rm -r "$link_name"

  5218. 

  5219. # determine libc flavour

  5220. 

  5221. probe_libc(){

  5222.     pfx=$1

  5223.     pfx_no_=${pfx%_}

  5224.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5225.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5226.         eval ${pfx}libc_type=uclibc

  5227.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5228.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5229.         eval ${pfx}libc_type=glibc

  5230.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5231.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5232.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5233.         eval ${pfx}libc_type=newlib

  5234.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5235.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5236.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5237.         eval ${pfx}libc_type=mingw64

  5238.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5239.             add_compat msvcrt/snprintf.o

  5240.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5241.         fi

  5242.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5243.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5244.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5245.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5246.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5247.         eval ${pfx}libc_type=mingw32

  5248.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5249.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5250.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5251.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5252.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5253.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5254.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5255.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5256.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5257.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5258.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5259.         eval ${pfx}libc_type=msvcrt

  5260.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5261.             if [ "$pfx" = host_ ]; then

  5262.                 add_host_cppflags -Dsnprintf=_snprintf

  5263.             else

  5264.                 add_compat strtod.o strtod=avpriv_strtod

  5265.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5266.                                              _snprintf=avpriv_snprintf  \

  5267.                                              vsnprintf=avpriv_vsnprintf

  5268.             fi

  5269.         fi

  5270.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5271.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5272.         # 0x601 by default unless something else is set by the user.

  5273.         # This can easily lead to us detecting functions only present

  5274.         # in such new versions and producing binaries requiring windows 7.0.

  5275.         # Therefore explicitly set the default to XP unless the user has

  5276.         # set something else on the command line.

  5277.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5278.         # family. For these cases, configure is free to use any functions

  5279.         # found in the SDK headers by default. (Alternatively, we could force

  5280.         # _WIN32_WINNT to 0x0602 in that case.)

  5281.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5282.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5283. #ifdef WINAPI_FAMILY

  5284. #include <winapifamily.h>

  5285. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5286. #error not desktop

  5287. #endif

  5288. #endif

  5289. EOF

  5290.         if [ "$pfx" = "" ]; then

  5291.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5292.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5293.         fi

  5294.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5295.         eval ${pfx}libc_type=klibc

  5296.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5297.         eval ${pfx}libc_type=bionic

  5298.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5299.         eval ${pfx}libc_type=solaris

  5300.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5301.     fi

  5302.     check_${pfx}cc <<EOF

  5303. #include <time.h>

  5304. void *v = localtime_r;

  5305. EOF

  5306. 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

  5307. #include <time.h>

  5308. void *v = localtime_r;

  5309. EOF

  5310. 

  5311. }

  5312. 

  5313. probe_libc

  5314. test -n "$libc_type" && enable libc_$libc_type

  5315. probe_libc host_

  5316. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5317. 

  5318. # hacks for compiler/libc/os combinations

  5319. 

  5320. case $libc_type in

  5321.     bionic)

  5322.         add_compat strtod.o strtod=avpriv_strtod

  5323.         ;;

  5324.     glibc)

  5325.         if enabled tms470; then

  5326.             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5327.             add_cppflags -D__USER_LABEL_PREFIX__=

  5328.             add_cppflags -D__builtin_memset=memset

  5329.             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5330.             add_cflags   -pds=48    # incompatible redefinition of macro

  5331.         elif enabled ccc; then

  5332.             add_ldflags -Wl,-z,now  # calls to libots crash without this

  5333.         fi

  5334.         ;;

  5335. esac

  5336. 

  5337. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5338.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5339. 

  5340. esc(){

  5341.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5342. }

  5343. 

  5344. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5345. 

  5346. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5347. 

  5348. set_default libdir

  5349. : ${shlibdir_default:="$libdir"}

  5350. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5351. 

  5352. set_default $PATHS_LIST

  5353. set_default nm

  5354. 

  5355. # we need to build at least one lib type

  5356. if ! enabled_any static shared; then

  5357.     cat <<EOF

  5358. At least one library type must be built.

  5359. Specify --enable-static to build the static libraries or --enable-shared to

  5360. build the shared libraries as well. To only build the shared libraries specify

  5361. --disable-static in addition to --enable-shared.

  5362. EOF

  5363.     exit 1

  5364. fi

  5365. 

  5366. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5367. 

  5368. enable_weak_pic() {

  5369.     disabled pic && return

  5370.     enable pic

  5371.     add_cppflags -DPIC

  5372.     case "$target_os" in

  5373.     mingw*|cygwin*)

  5374.         ;;

  5375.     *)

  5376.         add_cflags -fPIC

  5377.         ;;

  5378.     esac

  5379.     add_asflags  -fPIC

  5380. }

  5381. 

  5382. enabled pic && enable_weak_pic

  5383. 

  5384. check_cc <<EOF || die "Symbol mangling check failed."

  5385. int ff_extern;

  5386. EOF

  5387. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5388. extern_prefix=${sym%%ff_extern*}

  5389. 

  5390. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5391. 

  5392. _restrict=

  5393. for restrict_keyword in restrict __restrict__ __restrict; do

  5394.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5395. void foo(char * $restrict_keyword p);

  5396. EOF

  5397. done

  5398. 

  5399. check_cc <<EOF && enable pragma_deprecated

  5400. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5401. EOF

  5402. 

  5403. check_cc <<EOF && enable attribute_packed

  5404. struct { int x; } __attribute__((packed)) x;

  5405. EOF

  5406. 

  5407. check_cc <<EOF && enable attribute_may_alias

  5408. union { int x; } __attribute__((may_alias)) x;

  5409. EOF

  5410. 

  5411. check_cc <<EOF || die "endian test failed"

  5412. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5413. EOF

  5414. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5415. 

  5416. check_cc <<EOF && enable const_nan

  5417. #include <math.h>

  5418. void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }

  5419. EOF

  5420. 

  5421. if ! enabled ppc64 || enabled bigendian; then

  5422.     disable vsx

  5423. fi

  5424. 

  5425. check_gas() {

  5426.     log "check_gas using '$as' as AS"

  5427.     # :vararg is used on aarch64, arm and ppc altivec

  5428.     check_as <<EOF || return 1

  5429. .macro m n, y:vararg=0

  5430. \n: .int \y

  5431. .endm

  5432. m x

  5433. EOF

  5434.     # .altmacro is only used in arm asm

  5435.     ! enabled arm || check_as <<EOF || return 1

  5436. .altmacro

  5437. EOF

  5438.     enable gnu_as

  5439.     return 0

  5440. }

  5441. 

  5442. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5443.     nogas=:

  5444.     enabled_any arm aarch64 && nogas=die

  5445.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5446.     as_noop=-v

  5447. 

  5448.     case $as_type in

  5449.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5450.         gcc)  gaspp_as_type=gas ;;

  5451.         *)    gaspp_as_type=$as_type ;;

  5452.     esac

  5453. 

  5454.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5455. 

  5456.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5457.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5458.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5459. 

  5460.     if ! check_gas ; then

  5461.         as=${gas:=$as}

  5462.         check_gas || \

  5463.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5464.     fi

  5465. 

  5466.     check_as <<EOF && enable as_func

  5467. .func test

  5468. .endfunc

  5469. EOF

  5470. fi

  5471. 

  5472. check_inline_asm inline_asm_labels '"1:\n"'

  5473. 

  5474. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5475. 

  5476. if enabled aarch64; then

  5477.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5478.     # internal assembler in clang 3.3 does not support this instruction

  5479.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5480.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5481. 

  5482.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5483. 

  5484. elif enabled alpha; then

  5485. 

  5486.     check_cflags -mieee

  5487. 

  5488. elif enabled arm; then

  5489. 

  5490.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5491. 

  5492.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5493. float func(float a, float b){ return a+b; }

  5494. EOF

  5495. 

  5496.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5497. 

  5498.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5499.         enable vfp_args

  5500.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5501.         enable vfp_args

  5502.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5503.         case "${cross_prefix:-$cc}" in

  5504.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5505.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5506. __asm__ (".eabi_attribute 28, 1");

  5507. int main(void) { return 0; }

  5508. EOF

  5509.         esac

  5510.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5511.     fi

  5512. 

  5513.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5514.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5515.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5516.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5517.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5518.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5519.     enabled setend  && check_insn setend  'setend be'

  5520. 

  5521.     [ $target_os = linux ] || [ $target_os = android ] ||

  5522.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5523.             $ARCH_EXT_LIST_ARM

  5524. 

  5525.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5526. 

  5527.     check_as <<EOF && enable as_arch_directive

  5528. .arch armv7-a

  5529. EOF

  5530.     check_as <<EOF && enable as_dn_directive

  5531. ra .dn d0.i16

  5532. .unreq ra

  5533. EOF

  5534.     check_as <<EOF && enable as_fpu_directive

  5535. .fpu neon

  5536. EOF

  5537. 

  5538.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5539.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5540.         check_as <<EOF && enable as_object_arch

  5541. .object_arch armv4

  5542. EOF

  5543. 

  5544.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5545. 

  5546. elif enabled mips; then

  5547. 

  5548.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5549.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5550.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5551. 

  5552.     # Enable minimum ISA based on selected options

  5553.     if enabled mips64; then

  5554.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5555.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5556.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5557.     else

  5558.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5559.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5560.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5561.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5562.     fi

  5563. 

  5564.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5565.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5566.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5567.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5568.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5569. 

  5570.     if enabled bigendian && enabled msa; then

  5571.         disable msa

  5572.     fi

  5573. 

  5574. elif enabled parisc; then

  5575. 

  5576.     if enabled gcc; then

  5577.         case $($cc -dumpversion) in

  5578.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5579.         esac

  5580.     fi

  5581. 

  5582. elif enabled ppc; then

  5583. 

  5584.     enable local_aligned

  5585. 

  5586.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5587.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5588.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5589.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5590. 

  5591.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5592.     if enabled altivec; then

  5593.         check_cflags -maltivec -mabi=altivec &&

  5594.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5595.         check_cflags -faltivec

  5596. 

  5597.         # check if our compiler supports Motorola AltiVec C API

  5598.         check_cc <<EOF || disable altivec

  5599. $inc_altivec_h

  5600. int main(void) {

  5601.     vector signed int v1 = (vector signed int) { 0 };

  5602.     vector signed int v2 = (vector signed int) { 1 };

  5603.     v1 = vec_add(v1, v2);

  5604.     return 0;

  5605. }

  5606. EOF

  5607. 

  5608.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5609.     fi

  5610. 

  5611.     if enabled vsx; then

  5612.         check_cflags -mvsx &&

  5613.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5614.     fi

  5615. 

  5616.     if enabled power8; then

  5617.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5618.     fi

  5619. 

  5620. elif enabled x86; then

  5621. 

  5622.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5623.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5624. 

  5625.     enable local_aligned

  5626. 

  5627.     # check whether EBP is available on x86

  5628.     # As 'i' is stored on the stack, this program will crash

  5629.     # if the base pointer is used to access it because the

  5630.     # base pointer is cleared in the inline assembly code.

  5631.     check_exec_crash <<EOF && enable ebp_available

  5632. volatile int i=0;

  5633. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5634. return i;

  5635. EOF

  5636. 

  5637.     # check whether EBX is available on x86

  5638.     check_inline_asm ebx_available '""::"b"(0)' &&

  5639.         check_inline_asm ebx_available '"":::"%ebx"'

  5640. 

  5641.     # check whether xmm clobbers are supported

  5642.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5643. 

  5644.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5645.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5646. 

  5647.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5648.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5649.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5650. 

  5651.     probe_x86asm(){

  5652.         x86asmexe_probe=$1

  5653.         if check_cmd $x86asmexe_probe -v; then

  5654.             x86asmexe=$x86asmexe_probe

  5655.             x86asm_type=nasm

  5656.             x86asm_debug="-g -F dwarf"

  5657.         elif check_cmd $x86asmexe_probe --version; then

  5658.             x86asmexe=$x86asmexe_probe

  5659.             x86asm_type=yasm

  5660.             x86asm_debug="-g dwarf2"

  5661.         fi

  5662.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5663.     }

  5664. 

  5665.     if ! disabled_any asm mmx x86asm; then

  5666.         disable x86asm

  5667.         for program in $x86asmexe nasm yasm; do

  5668.             probe_x86asm $program && break

  5669.         done

  5670.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5671.         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5672.         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5673.         X86ASMFLAGS="-f $objformat"

  5674.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5675.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5676.         case "$objformat" in

  5677.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5678.         esac

  5679. 

  5680.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5681.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5682.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5683.         check_x86asm "CPU amdnop" || disable cpunop

  5684.     fi

  5685. 

  5686.     case "$cpu" in

  5687.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5688.             disable fast_clz

  5689.         ;;

  5690.     esac

  5691. 

  5692. fi

  5693. 

  5694. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5695. 

  5696. check_ldflags -Wl,--as-needed

  5697. check_ldflags -Wl,-z,noexecstack

  5698. 

  5699. if ! disabled network; then

  5700.     check_func getaddrinfo $network_extralibs

  5701.     check_func inet_aton $network_extralibs

  5702. 

  5703.     check_type netdb.h "struct addrinfo"

  5704.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5705.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5706.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5707.     check_type poll.h "struct pollfd"

  5708.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5709.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5710.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5711.     check_type netinet/in.h "struct sockaddr_in6"

  5712.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5713.     check_type "sys/types.h sys/socket.h" socklen_t

  5714. 

  5715.     # Prefer arpa/inet.h over winsock2

  5716.     if check_header arpa/inet.h ; then

  5717.         check_func closesocket

  5718.     elif check_header winsock2.h ; then

  5719.         check_func_headers winsock2.h closesocket -lws2 &&

  5720.             network_extralibs="-lws2" ||

  5721.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5722.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5723.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5724. 

  5725.         check_type ws2tcpip.h socklen_t

  5726.         check_type ws2tcpip.h "struct addrinfo"

  5727.         check_type ws2tcpip.h "struct group_source_req"

  5728.         check_type ws2tcpip.h "struct ip_mreq_source"

  5729.         check_type ws2tcpip.h "struct ipv6_mreq"

  5730.         check_type winsock2.h "struct pollfd"

  5731.         check_struct winsock2.h "struct sockaddr" sa_len

  5732.         check_type ws2tcpip.h "struct sockaddr_in6"

  5733.         check_type ws2tcpip.h "struct sockaddr_storage"

  5734.     else

  5735.         disable network

  5736.     fi

  5737. fi

  5738. 

  5739. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5740. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5741. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5742. check_builtin sarestart signal.h "SA_RESTART"

  5743. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5744. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5745. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5746. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5747. 

  5748. case "$custom_allocator" in

  5749.     jemalloc)

  5750.         # jemalloc by default does not use a prefix

  5751.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5752.     ;;

  5753.     tcmalloc)

  5754.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5755.         malloc_prefix=tc_

  5756.     ;;

  5757. esac

  5758. 

  5759. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5760. check_func  ${malloc_prefix}memalign            && enable memalign

  5761. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5762. 

  5763. check_func  access

  5764. check_func_headers stdlib.h arc4random

  5765. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5766. check_func  fcntl

  5767. check_func  fork

  5768. check_func  gethrtime

  5769. check_func  getopt

  5770. check_func  getrusage

  5771. check_func  gettimeofday

  5772. check_func  isatty

  5773. check_func  mach_absolute_time

  5774. check_func  mkstemp

  5775. check_func  mmap

  5776. check_func  mprotect

  5777. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5778. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5779. check_func  sched_getaffinity

  5780. check_func  setrlimit

  5781. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5782. check_func  strerror_r

  5783. check_func  sysconf

  5784. check_func  sysctl

  5785. check_func  usleep

  5786. 

  5787. check_func_headers conio.h kbhit

  5788. check_func_headers io.h setmode

  5789. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5790. check_func_headers stdlib.h getenv

  5791. check_func_headers sys/stat.h lstat

  5792. 

  5793. check_func_headers windows.h GetProcessAffinityMask

  5794. check_func_headers windows.h GetProcessTimes

  5795. check_func_headers windows.h GetSystemTimeAsFileTime

  5796. check_func_headers windows.h LoadLibrary

  5797. check_func_headers windows.h MapViewOfFile

  5798. check_func_headers windows.h PeekNamedPipe

  5799. check_func_headers windows.h SetConsoleTextAttribute

  5800. check_func_headers windows.h SetConsoleCtrlHandler

  5801. check_func_headers windows.h Sleep

  5802. check_func_headers windows.h VirtualAlloc

  5803. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5804. check_func_headers glob.h glob

  5805. enabled xlib &&

  5806.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5807. 

  5808. check_header d3d11.h

  5809. check_header direct.h

  5810. check_header dirent.h

  5811. check_header dlfcn.h

  5812. check_header dxgidebug.h

  5813. check_header dxva.h

  5814. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5815. check_header io.h

  5816. check_header libcrystalhd/libcrystalhd_if.h

  5817. check_header mach/mach_time.h

  5818. check_header malloc.h

  5819. check_header net/udplite.h

  5820. check_header poll.h

  5821. check_header sys/mman.h

  5822. check_header sys/param.h

  5823. check_header sys/resource.h

  5824. check_header sys/select.h

  5825. check_header sys/time.h

  5826. check_header sys/un.h

  5827. check_header termios.h

  5828. check_header unistd.h

  5829. check_header valgrind/valgrind.h

  5830. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5831. check_header windows.h

  5832. check_header X11/extensions/XvMClib.h

  5833. check_header asm/types.h

  5834. 

  5835. # it seems there are versions of clang in some distros that try to use the

  5836. # gcc headers, which explodes for stdatomic

  5837. # so we also check that atomics actually work here

  5838. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5839. 

  5840. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5841. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5842. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5843. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5844. 

  5845. enabled appkit       && check_apple_framework AppKit

  5846. enabled audiotoolbox && check_apple_framework AudioToolbox

  5847. enabled avfoundation && check_apple_framework AVFoundation

  5848. enabled coreimage    && check_apple_framework CoreImage

  5849. enabled videotoolbox && check_apple_framework VideoToolbox

  5850. 

  5851. check_apple_framework CoreFoundation

  5852. check_apple_framework CoreMedia

  5853. check_apple_framework CoreVideo

  5854. 

  5855. enabled avfoundation && {

  5856.     disable coregraphics applicationservices

  5857.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5858.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5859. 

  5860. enabled videotoolbox && {

  5861.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5862.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5863. }

  5864. 

  5865. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5866. 

  5867. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5868. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5869. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5870. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5871. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5872. 

  5873. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5874. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5875. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5876. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5877. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5878. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5879. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5880. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5881. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5882. 

  5883. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5884. 

  5885. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5886. 

  5887. if ! disabled w32threads && ! enabled pthreads; then

  5888.     check_func_headers "windows.h process.h" _beginthreadex &&

  5889.         enable w32threads || disable w32threads

  5890.     if ! enabled w32threads && enabled winrt; then

  5891.         check_func_headers "windows.h" CreateThread &&

  5892.             enable w32threads || disable w32threads

  5893.     fi

  5894. fi

  5895. 

  5896. # check for some common methods of building with pthread support

  5897. # do this before the optional library checks as some of them require pthreads

  5898. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5899.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5900.        check_lib pthreads pthread.h pthread_create -pthread; then

  5901.         add_cflags -pthread

  5902.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5903.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5904.         add_cflags -pthreads

  5905.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5906.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5907.         add_cflags -ldl -pthread

  5908.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5909.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5910.         :

  5911.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5912.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5913.         :

  5914.     elif check_func pthread_join && check_func pthread_create; then

  5915.         enable pthreads

  5916.     fi

  5917.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5918. fi

  5919. 

  5920. 

  5921. if enabled pthreads; then

  5922.   check_func pthread_cancel $pthreads_extralibs

  5923. fi

  5924. 

  5925. enabled pthreads &&

  5926.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5927. 

  5928. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5929. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5930. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5931. 

  5932. # On some systems dynamic loading requires no extra linker flags

  5933. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5934. 

  5935. check_lib libm math.h sin -lm

  5936. 

  5937. atan2f_args=2

  5938. copysign_args=2

  5939. hypot_args=2

  5940. ldexpf_args=2

  5941. powf_args=2

  5942. 

  5943. for func in $MATH_FUNCS; do

  5944.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5945. done

  5946. 

  5947. for func in $COMPLEX_FUNCS; do

  5948.     eval check_complexfunc $func \${${func}_args:-1}

  5949. done

  5950. 

  5951. # these are off by default, so fail if requested and not available

  5952. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5953. enabled cuvid             && { enabled cuda ||

  5954.                                die "ERROR: CUVID requires CUDA"; }

  5955. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5956. enabled decklink          && { require_header DeckLinkAPI.h &&

  5957.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5958. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5959. enabled frei0r            && require_header frei0r.h

  5960. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5961. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5962. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5963. enabled ladspa            && require_header ladspa.h

  5964. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5965. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5966. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5967. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5968. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5969.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5970.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5971. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5972. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5973. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5974. enabled libfdk_aac        && { use_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5975.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5976.                                  warn "using libfdk without pkg-config"; } }

  5977. 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"

  5978. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5979. enabled fontconfig        && enable libfontconfig

  5980. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5981. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5982. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5983. enabled libgme            && { use_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5984.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5985. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5986.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5987.                                done || die "ERROR: libgsm not found"; }

  5988. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5989. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5990. # While it may appear that require is being used as a pkg-config

  5991. # fallback for libmfx, it is actually being used to detect a different

  5992. # installation route altogether.  If libmfx is installed via the Intel

  5993. # Media SDK or Intel Media Server Studio, these don't come with

  5994. # pkg-config support.  Instead, users should make sure that the build

  5995. # can find the libraries and headers through other means.

  5996. enabled libmfx            && { use_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5997.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5998. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5999. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  6000. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  6001. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  6002.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  6003.                                die "ERROR: libnpp not found"; }

  6004. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  6005. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  6006. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  6007.                                { use_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  6008.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  6009.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  6010. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  6011. enabled libopenjpeg       && { use_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  6012.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  6013. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  6014. enabled libopus           && {

  6015.     enabled libopus_decoder && {

  6016.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  6017.     }

  6018.     enabled libopus_encoder && {

  6019.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  6020.     }

  6021. }

  6022. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  6023. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  6024. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  6025. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  6026. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  6027. enabled libsmbclient      && { use_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  6028.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  6029. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  6030. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  6031. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  6032. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex

  6033. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  6034. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  6035. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  6036.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  6037.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  6038. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  6039. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  6040. enabled libvmaf           && require_pkg_config libvmaf libvmaf libvmaf.h compute_vmaf

  6041. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  6042. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  6043.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  6044. 

  6045. enabled libvpx            && {

  6046.     enabled libvpx_vp8_decoder && {

  6047.         use_pkg_config libvpx_vp8_decoder "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  6048.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  6049.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  6050.     }

  6051.     enabled libvpx_vp8_encoder && {

  6052.         use_pkg_config libvpx_vp8_encoder "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  6053.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  6054.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  6055.     }

  6056.     enabled libvpx_vp9_decoder && {

  6057.         use_pkg_config libvpx_vp9_decoder "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  6058.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  6059.     }

  6060.     enabled libvpx_vp9_encoder && {

  6061.         use_pkg_config libvpx_vp9_encoder "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  6062.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  6063.     }

  6064.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  6065.         die "libvpx enabled but no supported decoders found"

  6066.     fi

  6067. }

  6068. 

  6069. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  6070. enabled libwebp           && {

  6071.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  6072.     enabled libwebp_anim_encoder && use_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  6073. enabled libx264           && { use_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  6074.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  6075.                                  warn "using libx264 without pkg-config"; } } &&

  6076.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  6077.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  6078.                                enable libx262; }

  6079. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  6080.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  6081. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  6082. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  6083. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.3.0" zimg.h zimg_get_api_version

  6084. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  6085. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  6086.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  6087.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  6088. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  6089. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  6090. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  6091.                                { ! enabled cross_compile &&

  6092.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  6093.                                  add_ldflags -L/opt/vc/lib/ &&

  6094.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  6095.                                die "ERROR: mmal not found" &&

  6096.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  6097. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  6098.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  6099.                                die "ERROR: openal not found"; } &&

  6100.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  6101.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  6102. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  6103.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  6104.                                die "ERROR: opencl not found"; } &&

  6105.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  6106.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  6107.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  6108. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  6109.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  6110.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6111.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6112.                                die "ERROR: opengl not found."

  6113.                              }

  6114. enabled omx               && require_header OMX_Core.h

  6115. enabled omx_rpi           && { check_header OMX_Core.h ||

  6116.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6117.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  6118. enabled openssl           && { use_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  6119.                                use_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  6120.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6121.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6122.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6123.                                die "ERROR: openssl not found"; }

  6124. enabled rkmpp             && { { require_pkg_config rkmpp rockchip_mpp rockchip/rk_mpi.h mpp_create ||

  6125.                                  die "ERROR : Rockchip MPP was not found."; } &&

  6126.                                { check_func_headers rockchip/rk_mpi_cmd.h "MPP_DEC_GET_FREE_PACKET_SLOT_COUNT" ||

  6127.                                  die "ERROR: Rockchip MPP is outdated, please get a more recent one."; } &&

  6128.                                { enabled libdrm ||

  6129.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  6130.                              }

  6131. 

  6132. if enabled gcrypt; then

  6133.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6134.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6135.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6136.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6137.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6138.             die "ERROR: gcrypt not found"

  6139.         add_cflags $gcrypt_cflags

  6140.     else

  6141.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6142.     fi

  6143. fi

  6144. 

  6145. if enabled sdl2; then

  6146.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6147.     if check_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent; then

  6148.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6149.             disable sdl2

  6150.     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6151.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6152.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6153.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6154.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6155.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags &&

  6156.             enable sdl2

  6157.     fi

  6158.     if test $target_os = "mingw32"; then

  6159.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6160.     fi

  6161. fi

  6162. 

  6163. if enabled decklink; then

  6164.     case $target_os in

  6165.         mingw32*|mingw64*|win32|win64)

  6166.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6167.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6168.             ;;

  6169.     esac

  6170. fi

  6171. 

  6172. enabled securetransport &&

  6173.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6174.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6175.         disable securetransport

  6176. 

  6177. enabled schannel &&

  6178.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6179.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6180.     schannel_extralibs="-lsecur32" ||

  6181.         disable schannel

  6182. 

  6183. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6184. enabled makeinfo \

  6185.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6186.     && enable makeinfo_html || disable makeinfo_html

  6187. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6188. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6189. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6190. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6191. 

  6192. # check V4L2 codecs available in the API

  6193. check_header linux/fb.h

  6194. check_header linux/videodev2.h

  6195. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6196. check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m

  6197. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m

  6198. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m

  6199. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m

  6200. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m

  6201. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m

  6202. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m

  6203. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m

  6204. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m

  6205. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m

  6206. 

  6207. check_header sys/videoio.h

  6208. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6209. 

  6210. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6211. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6212. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6213. # w32api 3.12 had it defined wrong

  6214. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6215. 

  6216. check_type "dshow.h" IBaseFilter

  6217. 

  6218. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6219. { check_header dev/bktr/ioctl_meteor.h &&

  6220.   check_header dev/bktr/ioctl_bt848.h; } ||

  6221. { check_header machine/ioctl_meteor.h &&

  6222.   check_header machine/ioctl_bt848.h; } ||

  6223. { check_header dev/video/meteor/ioctl_meteor.h &&

  6224.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6225. check_header dev/ic/bt8xx.h

  6226. 

  6227. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6228.     enable_sanitized sys/soundcard.h

  6229. else

  6230.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6231.     #include <sys/soundcard.h>

  6232.     audio_buf_info abc;

  6233. EOF

  6234. fi

  6235. check_header soundcard.h

  6236. 

  6237. enabled alsa && use_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6238.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6239. 

  6240. enabled libjack &&

  6241.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6242. 

  6243. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6244. 

  6245. if enabled libcdio; then

  6246.     use_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6247.     use_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6248.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6249.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6250.     die "ERROR: No usable libcdio/cdparanoia found"

  6251. fi

  6252. 

  6253. enabled libxcb && use_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6254.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6255. 

  6256. if enabled libxcb; then

  6257.     enabled libxcb_shm    && use_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6258.     enabled libxcb_shape  && use_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6259.     enabled libxcb_xfixes && use_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6260. fi

  6261. 

  6262. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6263. 

  6264. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6265. # the desktop api partition

  6266. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6267. #ifdef WINAPI_FAMILY

  6268. #include <winapifamily.h>

  6269. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6270. #error desktop, not uwp

  6271. #else

  6272. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6273. #endif

  6274. #else

  6275. #error no family set

  6276. #endif

  6277. EOF

  6278. 

  6279. enabled vaapi &&

  6280.     check_lib vaapi va/va.h vaInitialize -lva

  6281. 

  6282. enabled vaapi &&

  6283.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6284.     disable vaapi

  6285. 

  6286. enabled vaapi &&

  6287.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6288. 

  6289. enabled vaapi &&

  6290.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6291. 

  6292. enabled vaapi &&

  6293.     check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&

  6294.     enable vaapi_1

  6295. 

  6296. enabled vdpau &&

  6297.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6298.     disable vdpau

  6299. 

  6300. enabled vdpau &&

  6301.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6302. 

  6303. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6304. 

  6305. if enabled x86; then

  6306.     case $target_os in

  6307.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6308.             ;;

  6309.         *)

  6310.             disable cuda cuvid nvenc

  6311.             ;;

  6312.     esac

  6313. else

  6314.     disable cuda cuvid nvenc

  6315. fi

  6316. 

  6317. enabled nvenc &&

  6318.     check_cc -I$source_path <<EOF || disable nvenc

  6319. #include "compat/nvenc/nvEncodeAPI.h"

  6320. NV_ENCODE_API_FUNCTION_LIST flist;

  6321. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6322. int main(void) { return 0; }

  6323. EOF

  6324. 

  6325. # Funny iconv installations are not unusual, so check it after all flags have been set

  6326. if enabled libc_iconv; then

  6327.     check_func_headers iconv.h iconv

  6328. elif enabled iconv; then

  6329.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6330. fi

  6331. 

  6332. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6333. 

  6334. # add some useful compiler flags if supported

  6335. check_cflags -Wdeclaration-after-statement

  6336. check_cflags -Wall

  6337. check_cflags -Wdisabled-optimization

  6338. check_cflags -Wpointer-arith

  6339. check_cflags -Wredundant-decls

  6340. check_cflags -Wwrite-strings

  6341. check_cflags -Wtype-limits

  6342. check_cflags -Wundef

  6343. check_cflags -Wmissing-prototypes

  6344. check_cflags -Wno-pointer-to-int-cast

  6345. check_cflags -Wstrict-prototypes

  6346. check_cflags -Wempty-body

  6347. 

  6348. if enabled extra_warnings; then

  6349.     check_cflags -Wcast-qual

  6350.     check_cflags -Wextra

  6351.     check_cflags -Wpedantic

  6352. fi

  6353. 

  6354. check_disable_warning(){

  6355.     warning_flag=-W${1#-Wno-}

  6356.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6357. }

  6358. 

  6359. test_cflags -Werror=unused-command-line-argument &&

  6360.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6361. test_cflags -Werror=unknown-warning-option &&

  6362.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6363. 

  6364. check_disable_warning -Wno-parentheses

  6365. check_disable_warning -Wno-switch

  6366. check_disable_warning -Wno-format-zero-length

  6367. check_disable_warning -Wno-pointer-sign

  6368. check_disable_warning -Wno-unused-const-variable

  6369. check_disable_warning -Wno-bool-operation

  6370. 

  6371. check_disable_warning_headers(){

  6372.     warning_flag=-W${1#-Wno-}

  6373.     test_cflags $warning_flag && add_cflags_headers $1

  6374. }

  6375. 

  6376. check_disable_warning_headers -Wno-deprecated-declarations

  6377. check_disable_warning_headers -Wno-unused-variable

  6378. 

  6379. check_cc <<EOF && enable blocks_extension

  6380. void (^block)(void);

  6381. EOF

  6382. 

  6383. # add some linker flags

  6384. check_ldflags -Wl,--warn-common

  6385. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6386. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6387. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6388. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6389. 

  6390. # add some strip flags

  6391. check_stripflags -x

  6392. 

  6393. enabled neon_clobber_test &&

  6394.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6395.                   -Wl,--wrap,avcodec_decode_audio4      \

  6396.                   -Wl,--wrap,avcodec_decode_video2      \

  6397.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6398.                   -Wl,--wrap,avcodec_encode_audio2      \

  6399.                   -Wl,--wrap,avcodec_encode_video2      \

  6400.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6401.                   -Wl,--wrap,avcodec_send_packet        \

  6402.                   -Wl,--wrap,avcodec_receive_packet     \

  6403.                   -Wl,--wrap,avcodec_send_frame         \

  6404.                   -Wl,--wrap,avcodec_receive_frame      \

  6405.                   -Wl,--wrap,swr_convert                \

  6406.                   -Wl,--wrap,avresample_convert ||

  6407.     disable neon_clobber_test

  6408. 

  6409. enabled xmm_clobber_test &&

  6410.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6411.                   -Wl,--wrap,avcodec_decode_audio4      \

  6412.                   -Wl,--wrap,avcodec_decode_video2      \

  6413.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6414.                   -Wl,--wrap,avcodec_encode_audio2      \

  6415.                   -Wl,--wrap,avcodec_encode_video2      \

  6416.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6417.                   -Wl,--wrap,avcodec_send_packet        \

  6418.                   -Wl,--wrap,avcodec_receive_packet     \

  6419.                   -Wl,--wrap,avcodec_send_frame         \

  6420.                   -Wl,--wrap,avcodec_receive_frame      \

  6421.                   -Wl,--wrap,swr_convert                \

  6422.                   -Wl,--wrap,avresample_convert         \

  6423.                   -Wl,--wrap,sws_scale ||

  6424.     disable xmm_clobber_test

  6425. 

  6426. check_ld "cc" <<EOF && enable proper_dce

  6427. extern const int array[512];

  6428. static inline int func(void) { return array[0]; }

  6429. int main(void) { return 0; }

  6430. EOF

  6431. 

  6432. if enabled proper_dce; then

  6433.     echo "X { local: *; };" > $TMPV

  6434.     if test_ldflags -Wl,${version_script},$TMPV; then

  6435.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6436.         check_cc <<EOF && enable symver_asm_label

  6437. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6438. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6439. EOF

  6440.         check_cc <<EOF && enable symver_gnu_asm

  6441. __asm__(".symver ff_foo,av_foo@VERSION");

  6442. void ff_foo(void) {}

  6443. EOF

  6444.     fi

  6445. fi

  6446. 

  6447. if [ -z "$optflags" ]; then

  6448.     if enabled small; then

  6449.         optflags=$cflags_size

  6450.     elif enabled optimizations; then

  6451.         optflags=$cflags_speed

  6452.     else

  6453.         optflags=$cflags_noopt

  6454.     fi

  6455. fi

  6456. 

  6457. if [ -z "$nvccflags" ]; then

  6458.     nvccflags=$nvccflags_default

  6459. fi

  6460. 

  6461. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6462.     nvccflags="$nvccflags -m64"

  6463. else

  6464.     nvccflags="$nvccflags -m32"

  6465. fi

  6466. 

  6467. check_optflags(){

  6468.     check_cflags "$@"

  6469.     enabled lto && check_ldflags "$@"

  6470. }

  6471. 

  6472. check_optflags $optflags

  6473. check_optflags -fno-math-errno

  6474. check_optflags -fno-signed-zeros

  6475. 

  6476. if enabled lto; then

  6477.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6478.     check_cflags  -flto

  6479.     check_ldflags -flto $cpuflags

  6480.     disable inline_asm_direct_symbol_refs

  6481. fi

  6482. 

  6483. enabled ftrapv && check_cflags -ftrapv

  6484. 

  6485. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6486. int x;

  6487. EOF

  6488. 

  6489. 

  6490. if enabled icc; then

  6491.     # Just warnings, no remarks

  6492.     check_cflags -w1

  6493.     # -wd: Disable following warnings

  6494.     # 144, 167, 556: -Wno-pointer-sign

  6495.     # 188: enumerated type mixed with another type

  6496.     # 1292: attribute "foo" ignored

  6497.     # 1419: external declaration in primary source file

  6498.     # 10006: ignoring unknown option -fno-signed-zeros

  6499.     # 10148: ignoring unknown option -Wno-parentheses

  6500.     # 10156: ignoring option '-W'; no argument required

  6501.     # 13200: No EMMS instruction before call to function

  6502.     # 13203: No EMMS instruction before return from function

  6503.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6504.     # 11030: Warning unknown option --as-needed

  6505.     # 10156: ignoring option '-export'; no argument required

  6506.     check_ldflags -wd10156,11030

  6507.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6508.     enable ebp_available

  6509.     # The test above does not test linking

  6510.     enabled lto && disable symver_asm_label

  6511.     if enabled x86_32; then

  6512.         icc_version=$($cc -dumpversion)

  6513.         test ${icc_version%%.*} -ge 11 &&

  6514.             check_cflags -falign-stack=maintain-16-byte ||

  6515.             disable aligned_stack

  6516.     fi

  6517. elif enabled ccc; then

  6518.     # disable some annoying warnings

  6519.     add_cflags -msg_disable bitnotint

  6520.     add_cflags -msg_disable mixfuncvoid

  6521.     add_cflags -msg_disable nonstandcast

  6522.     add_cflags -msg_disable unsupieee

  6523. elif enabled gcc; then

  6524.     check_optflags -fno-tree-vectorize

  6525.     check_cflags -Werror=format-security

  6526.     check_cflags -Werror=implicit-function-declaration

  6527.     check_cflags -Werror=missing-prototypes

  6528.     check_cflags -Werror=return-type

  6529.     check_cflags -Werror=vla

  6530.     check_cflags -Wformat

  6531.     check_cflags -fdiagnostics-color=auto

  6532.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6533. elif enabled llvm_gcc; then

  6534.     check_cflags -mllvm -stack-alignment=16

  6535. elif enabled clang; then

  6536.     check_cflags -mllvm -stack-alignment=16

  6537.     check_cflags -mstack-alignment=16

  6538.     check_cflags -Qunused-arguments

  6539.     check_cflags -Werror=implicit-function-declaration

  6540.     check_cflags -Werror=missing-prototypes

  6541.     check_cflags -Werror=return-type

  6542. elif enabled cparser; then

  6543.     add_cflags -Wno-missing-variable-declarations

  6544.     add_cflags -Wno-empty-statement

  6545. elif enabled armcc; then

  6546.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6547.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6548.     # 2523: use of inline assembly is deprecated

  6549.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6550.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6551.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6552.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6553.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6554.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6555. elif enabled tms470; then

  6556.     add_cflags -pds=824 -pds=837

  6557.     disable inline_asm

  6558. elif enabled pathscale; then

  6559.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6560.     disable inline_asm

  6561. elif enabled_any msvc icl; then

  6562.     enabled x86_32 && disable aligned_stack

  6563.     enabled_all x86_32 debug && add_cflags -Oy-

  6564.     enabled debug && add_ldflags -debug

  6565.     enable pragma_deprecated

  6566.     if enabled icl; then

  6567.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6568.         # (correctly) on icl 13.x.

  6569.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6570.             add_cflags -Qansi-alias

  6571.         # Some inline asm is not compilable in debug

  6572.         if enabled debug; then

  6573.             disable ebp_available

  6574.             disable ebx_available

  6575.         fi

  6576.     fi

  6577.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6578.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6579.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6580.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6581.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6582.     # MSVC 2013 and newer can handle it fine.

  6583.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6584.     # happens in config.h.

  6585.     if [ $_restrict != restrict ]; then

  6586.         check_cc <<EOF || add_cflags -FIstdlib.h

  6587. __declspec($_restrict) void* foo(int);

  6588. EOF

  6589.     fi

  6590.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6591.     # Issue has been fixed in MSVC v19.00.24218.

  6592.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6593.         check_cflags -d2SSAOptimizer-

  6594.     # enable utf-8 source processing on VS2015 U2 and newer

  6595.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6596.         add_cflags -utf-8

  6597. fi

  6598. 

  6599. for pfx in "" host_; do

  6600.     varname=${pfx%_}cc_type

  6601.     eval "type=\$$varname"

  6602.     if [ "$type" = "msvc" ]; then

  6603.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6604. static inline int foo(int a) { return a; }

  6605. EOF

  6606.     fi

  6607. done

  6608. 

  6609. case $as_type in

  6610.     clang)

  6611.         add_asflags -Qunused-arguments

  6612.     ;;

  6613. esac

  6614. 

  6615. case $ld_type in

  6616.     clang)

  6617.         check_ldflags -Qunused-arguments

  6618.     ;;

  6619. esac

  6620. 

  6621. case $target_os in

  6622.     osf1)

  6623.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6624.     ;;

  6625. esac

  6626. 

  6627. enable frame_thread_encoder

  6628. 

  6629. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6630. 

  6631. check_deps $CONFIG_LIST       \

  6632.            $CONFIG_EXTRA      \

  6633.            $HAVE_LIST         \

  6634.            $ALL_COMPONENTS    \

  6635. 

  6636. 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"

  6637. 

  6638. 

  6639. if test $target_os = "haiku"; then

  6640.     disable memalign

  6641.     disable posix_memalign

  6642. fi

  6643. 

  6644. flatten_extralibs(){

  6645.     unset nested_entries

  6646.     list_name=$1

  6647.     eval list=\$${1}

  6648.     for entry in $list; do

  6649.         entry_copy=$entry

  6650.         resolve entry_copy

  6651.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6652.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6653.         eval $entry="\$flat_entries"

  6654.     done

  6655.     append $list_name "$nested_entries"

  6656. 

  6657.     resolve nested_entries

  6658.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6659.         flatten_extralibs $list_name

  6660.     fi

  6661. }

  6662. 

  6663. for linkunit in $LIBRARY_LIST; do

  6664.     unset current_extralibs

  6665.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6666.     for comp in ${components}; do

  6667.         enabled $comp || continue

  6668.         comp_extralibs="${comp}_extralibs"

  6669.         append current_extralibs $comp_extralibs

  6670.     done

  6671.     eval prepend ${linkunit}_extralibs $current_extralibs

  6672. done

  6673. 

  6674. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6675.     flatten_extralibs ${linkunit}_extralibs

  6676.     unique  ${linkunit}_extralibs

  6677.     resolve ${linkunit}_extralibs

  6678.     eval ${linkunit}_extralibs=\$\(\$ldflags_filter \$${linkunit}_extralibs\)

  6679. done

  6680. 

  6681. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6682. 

  6683. for thread in $THREADS_LIST; do

  6684.     if enabled $thread; then

  6685.         test -n "$thread_type" &&

  6686.             die "ERROR: Only one thread type must be selected." ||

  6687.             thread_type="$thread"

  6688.     fi

  6689. done

  6690. 

  6691. if disabled stdatomic_h; then

  6692.     if enabled atomics_gcc; then

  6693.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6694.     elif enabled atomics_win32; then

  6695.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6696.     elif enabled atomics_suncc; then

  6697.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6698.     elif enabled pthreads; then

  6699.         add_compat atomics/pthread/stdatomic.o

  6700.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6701.     else

  6702.         enabled threads && die "Threading is enabled, but no atomics are available"

  6703.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6704.     fi

  6705. fi

  6706. 

  6707. # Check if requested libraries were found.

  6708. for lib in $AUTODETECT_LIBS; do

  6709.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6710. done

  6711. 

  6712. enabled zlib && add_cppflags -DZLIB_CONST

  6713. 

  6714. # conditional library dependencies, in linking order

  6715. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6716. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6717. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6718. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6719. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6720. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6721. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6722. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6723. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6724. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6725. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6726. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6727. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6728. enabled pan_filter          && prepend avfilter_deps "swresample"

  6729. enabled pp_filter           && prepend avfilter_deps "postproc"

  6730. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6731. enabled resample_filter && prepend avfilter_deps "avresample"

  6732. enabled sab_filter          && prepend avfilter_deps "swscale"

  6733. enabled scale_filter    && prepend avfilter_deps "swscale"

  6734. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6735. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6736. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6737. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6738. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6739. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6740. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6741. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6742. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6743. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6744. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6745. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6746. 

  6747. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6748. 

  6749. #FIXME

  6750. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6751. 

  6752. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6753. 

  6754. expand_deps(){

  6755.     lib_deps=${1}_deps

  6756.     eval "deps=\$$lib_deps"

  6757.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6758.     unique $lib_deps

  6759. }

  6760. 

  6761. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6762. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6763. 

  6764. map 'expand_deps $v' $LIBRARY_LIST

  6765. 

  6766. license="LGPL version 2.1 or later"

  6767. if enabled nonfree; then

  6768.     license="nonfree and unredistributable"

  6769. elif enabled gplv3; then

  6770.     license="GPL version 3 or later"

  6771. elif enabled lgplv3; then

  6772.     license="LGPL version 3 or later"

  6773. elif enabled gpl; then

  6774.     license="GPL version 2 or later"

  6775. fi

  6776. 

  6777. if test "$quiet" != "yes"; then

  6778. 

  6779. echo "install prefix            $prefix"

  6780. echo "source path               $source_path"

  6781. echo "C compiler                $cc"

  6782. echo "C library                 $libc_type"

  6783. if test "$host_cc" != "$cc"; then

  6784.     echo "host C compiler           $host_cc"

  6785.     echo "host C library            $host_libc_type"

  6786. fi

  6787. echo "ARCH                      $arch ($cpu)"

  6788. if test "$build_suffix" != ""; then

  6789.     echo "build suffix              $build_suffix"

  6790. fi

  6791. if test "$progs_suffix" != ""; then

  6792.     echo "progs suffix              $progs_suffix"

  6793. fi

  6794. if test "$extra_version" != ""; then

  6795.     echo "version string suffix     $extra_version"

  6796. fi

  6797. echo "big-endian                ${bigendian-no}"

  6798. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6799. if enabled x86; then

  6800.     echo "standalone assembly       ${x86asm-no}"

  6801.     echo "x86 assembler             ${x86asmexe}"

  6802.     echo "MMX enabled               ${mmx-no}"

  6803.     echo "MMXEXT enabled            ${mmxext-no}"

  6804.     echo "3DNow! enabled            ${amd3dnow-no}"

  6805.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6806.     echo "SSE enabled               ${sse-no}"

  6807.     echo "SSSE3 enabled             ${ssse3-no}"

  6808.     echo "AESNI enabled             ${aesni-no}"

  6809.     echo "AVX enabled               ${avx-no}"

  6810.     echo "AVX2 enabled              ${avx2-no}"

  6811.     echo "XOP enabled               ${xop-no}"

  6812.     echo "FMA3 enabled              ${fma3-no}"

  6813.     echo "FMA4 enabled              ${fma4-no}"

  6814.     echo "i686 features enabled     ${i686-no}"

  6815.     echo "CMOV is fast              ${fast_cmov-no}"

  6816.     echo "EBX available             ${ebx_available-no}"

  6817.     echo "EBP available             ${ebp_available-no}"

  6818. fi

  6819. if enabled aarch64; then

  6820.     echo "NEON enabled              ${neon-no}"

  6821.     echo "VFP enabled               ${vfp-no}"

  6822. fi

  6823. if enabled arm; then

  6824.     echo "ARMv5TE enabled           ${armv5te-no}"

  6825.     echo "ARMv6 enabled             ${armv6-no}"

  6826.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6827.     echo "VFP enabled               ${vfp-no}"

  6828.     echo "NEON enabled              ${neon-no}"

  6829.     echo "THUMB enabled             ${thumb-no}"

  6830. fi

  6831. if enabled mips; then

  6832.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6833.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6834.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6835.     echo "MIPS MSA enabled          ${msa-no}"

  6836.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6837. fi

  6838. if enabled ppc; then

  6839.     echo "AltiVec enabled           ${altivec-no}"

  6840.     echo "VSX enabled               ${vsx-no}"

  6841.     echo "POWER8 enabled            ${power8-no}"

  6842.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6843.     echo "dcbzl available           ${dcbzl-no}"

  6844. fi

  6845. echo "debug symbols             ${debug-no}"

  6846. echo "strip symbols             ${stripping-no}"

  6847. echo "optimize for size         ${small-no}"

  6848. echo "optimizations             ${optimizations-no}"

  6849. echo "static                    ${static-no}"

  6850. echo "shared                    ${shared-no}"

  6851. echo "postprocessing support    ${postproc-no}"

  6852. echo "network support           ${network-no}"

  6853. echo "threading support         ${thread_type-no}"

  6854. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6855. echo "texi2html enabled         ${texi2html-no}"

  6856. echo "perl enabled              ${perl-no}"

  6857. echo "pod2man enabled           ${pod2man-no}"

  6858. echo "makeinfo enabled          ${makeinfo-no}"

  6859. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6860. test -n "$random_seed" &&

  6861.     echo "random seed               ${random_seed}"

  6862. echo

  6863. 

  6864. echo "External libraries:"

  6865. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6866. echo

  6867. 

  6868. echo "External libraries providing hardware acceleration:"

  6869. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6870. echo

  6871. 

  6872. echo "Libraries:"

  6873. print_enabled '' $LIBRARY_LIST | print_in_columns

  6874. echo

  6875. 

  6876. echo "Programs:"

  6877. print_enabled '' $PROGRAM_LIST | print_in_columns

  6878. echo

  6879. 

  6880. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6881.     echo "Enabled ${type}s:"

  6882.     eval list=\$$(toupper $type)_LIST

  6883.     print_enabled '_*' $list | print_in_columns

  6884.     echo

  6885. done

  6886. 

  6887. if test -n "$ignore_tests"; then

  6888.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6889.     echo "Ignored FATE tests:"

  6890.     echo $ignore_tests | print_in_columns

  6891.     echo

  6892. fi

  6893. 

  6894. echo "License: $license"

  6895. 

  6896. echo "Creating configuration files ..."

  6897. 

  6898. fi # test "$quiet" != "yes"

  6899. 

  6900. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6901. 

  6902. enabled stripping || strip="echo skipping strip"

  6903. enabled stripping || striptype=""

  6904. 

  6905. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6906. 

  6907. cat > ffbuild/config.mak <<EOF

  6908. # Automatically generated by configure - do not modify!

  6909. ifndef FFMPEG_CONFIG_MAK

  6910. FFMPEG_CONFIG_MAK=1

  6911. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6912. prefix=$prefix

  6913. LIBDIR=\$(DESTDIR)$libdir

  6914. SHLIBDIR=\$(DESTDIR)$shlibdir

  6915. INCDIR=\$(DESTDIR)$incdir

  6916. BINDIR=\$(DESTDIR)$bindir

  6917. DATADIR=\$(DESTDIR)$datadir

  6918. DOCDIR=\$(DESTDIR)$docdir

  6919. MANDIR=\$(DESTDIR)$mandir

  6920. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6921. INSTALL_NAME_DIR=$install_name_dir

  6922. SRC_PATH=$source_path

  6923. SRC_LINK=$source_link

  6924. ifndef MAIN_MAKEFILE

  6925. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6926. endif

  6927. CC_IDENT=$cc_ident

  6928. ARCH=$arch

  6929. INTRINSICS=$intrinsics

  6930. CC=$cc

  6931. CXX=$cxx

  6932. AS=$as

  6933. OBJCC=$objcc

  6934. LD=$ld

  6935. DEPCC=$dep_cc

  6936. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6937. DEPAS=$as

  6938. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6939. X86ASM=$x86asmexe

  6940. DEPX86ASM=$x86asmexe

  6941. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6942. AR=$ar

  6943. ARFLAGS=$arflags

  6944. AR_O=$ar_o

  6945. RANLIB=$ranlib

  6946. STRIP=$strip

  6947. STRIPTYPE=$striptype

  6948. NVCC=$nvcc

  6949. CP=cp -p

  6950. LN_S=$ln_s

  6951. CPPFLAGS=$CPPFLAGS

  6952. CFLAGS=$CFLAGS

  6953. CXXFLAGS=$CXXFLAGS

  6954. OBJCFLAGS=$OBJCFLAGS

  6955. ASFLAGS=$ASFLAGS

  6956. NVCCFLAGS=$nvccflags

  6957. AS_C=$AS_C

  6958. AS_O=$AS_O

  6959. OBJCC_C=$OBJCC_C

  6960. OBJCC_E=$OBJCC_E

  6961. OBJCC_O=$OBJCC_O

  6962. CC_C=$CC_C

  6963. CC_E=$CC_E

  6964. CC_O=$CC_O

  6965. CXX_C=$CXX_C

  6966. CXX_O=$CXX_O

  6967. NVCC_C=$NVCC_C

  6968. NVCC_O=$NVCC_O

  6969. LD_O=$LD_O

  6970. X86ASM_O=$X86ASM_O

  6971. LD_LIB=$LD_LIB

  6972. LD_PATH=$LD_PATH

  6973. DLLTOOL=$dlltool

  6974. WINDRES=$windres

  6975. DEPWINDRES=$dep_cc

  6976. DOXYGEN=$doxygen

  6977. LDFLAGS=$LDFLAGS

  6978. LDEXEFLAGS=$LDEXEFLAGS

  6979. LDLIBFLAGS=$LDLIBFLAGS

  6980. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6981. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6982. X86ASMFLAGS=$X86ASMFLAGS

  6983. BUILDSUF=$build_suffix

  6984. PROGSSUF=$progs_suffix

  6985. FULLNAME=$FULLNAME

  6986. LIBPREF=$LIBPREF

  6987. LIBSUF=$LIBSUF

  6988. LIBNAME=$LIBNAME

  6989. SLIBPREF=$SLIBPREF

  6990. SLIBSUF=$SLIBSUF

  6991. EXESUF=$EXESUF

  6992. EXTRA_VERSION=$extra_version

  6993. CCDEP=$CCDEP

  6994. CXXDEP=$CXXDEP

  6995. CCDEP_FLAGS=$CCDEP_FLAGS

  6996. ASDEP=$ASDEP

  6997. ASDEP_FLAGS=$ASDEP_FLAGS

  6998. X86ASMDEP=$X86ASMDEP

  6999. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  7000. CC_DEPFLAGS=$CC_DEPFLAGS

  7001. AS_DEPFLAGS=$AS_DEPFLAGS

  7002. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  7003. HOSTCC=$host_cc

  7004. HOSTLD=$host_ld

  7005. HOSTCFLAGS=$host_cflags

  7006. HOSTCPPFLAGS=$host_cppflags

  7007. HOSTEXESUF=$HOSTEXESUF

  7008. HOSTLDFLAGS=$host_ldflags

  7009. HOSTEXTRALIBS=$host_extralibs

  7010. DEPHOSTCC=$host_cc

  7011. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  7012. HOSTCCDEP=$HOSTCCDEP

  7013. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  7014. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  7015. HOSTCC_C=$HOSTCC_C

  7016. HOSTCC_O=$HOSTCC_O

  7017. HOSTLD_O=$HOSTLD_O

  7018. TARGET_EXEC=$target_exec $target_exec_args

  7019. TARGET_PATH=$target_path

  7020. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  7021. CFLAGS-ffplay=${sdl2_cflags}

  7022. CFLAGS_HEADERS=$CFLAGS_HEADERS

  7023. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  7024. EXTRALIBS=$extralibs

  7025. COMPAT_OBJS=$compat_objs

  7026. INSTALL=$install

  7027. LIBTARGET=${LIBTARGET}

  7028. SLIBNAME=${SLIBNAME}

  7029. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  7030. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  7031. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  7032. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  7033. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  7034. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  7035. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  7036. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  7037. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  7038. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  7039. NOREDZONE_FLAGS=$noredzone_flags

  7040. LIBFUZZER_PATH=$libfuzzer_path

  7041. IGNORE_TESTS=$ignore_tests

  7042. EOF

  7043. 

  7044. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  7045. 

  7046. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  7047.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  7048. done

  7049. 

  7050. cat > $TMPH <<EOF

  7051. /* Automatically generated by configure - do not modify! */

  7052. #ifndef FFMPEG_CONFIG_H

  7053. #define FFMPEG_CONFIG_H

  7054. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  7055. #define FFMPEG_LICENSE "$(c_escape $license)"

  7056. #define CONFIG_THIS_YEAR 2017

  7057. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  7058. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  7059. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  7060. #define av_restrict $_restrict

  7061. #define EXTERN_PREFIX "${extern_prefix}"

  7062. #define EXTERN_ASM ${extern_prefix}

  7063. #define BUILDSUF "$build_suffix"

  7064. #define SLIBSUF "$SLIBSUF"

  7065. #define HAVE_MMX2 HAVE_MMXEXT

  7066. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  7067. EOF

  7068. 

  7069. test -n "$assert_level" &&

  7070.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  7071. 

  7072. test -n "$malloc_prefix" &&

  7073.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  7074. 

  7075. if enabled x86asm; then

  7076.     append config_files $TMPASM

  7077.     printf '' >$TMPASM

  7078. fi

  7079. 

  7080. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  7081. 

  7082. 

  7083. mkdir -p doc

  7084. mkdir -p tests

  7085. mkdir -p tests/api

  7086. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  7087. 

  7088. print_config ARCH_   "$config_files" $ARCH_LIST

  7089. print_config HAVE_   "$config_files" $HAVE_LIST

  7090. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  7091.                                      $CONFIG_EXTRA      \

  7092.                                      $ALL_COMPONENTS    \

  7093. 

  7094. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  7095. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  7096. 

  7097. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  7098. cp_if_changed $TMPH config.h

  7099. touch ffbuild/.config

  7100. 

  7101. enabled x86asm && cp_if_changed $TMPASM config.asm

  7102. 

  7103. cat > $TMPH <<EOF

  7104. /* Generated by ffconf */

  7105. #ifndef AVUTIL_AVCONFIG_H

  7106. #define AVUTIL_AVCONFIG_H

  7107. EOF

  7108. 

  7109. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7110. 

  7111. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7112. 

  7113. cp_if_changed $TMPH libavutil/avconfig.h

  7114. 

  7115. # generate the lists of enabled components

  7116. print_enabled_components(){

  7117.     file=$1

  7118.     struct_name=$2

  7119.     name=$3

  7120.     shift 3

  7121.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7122.     for c in $*; do

  7123.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  7124.     done

  7125.     echo "    NULL };" >> $TMPH

  7126.     cp_if_changed $TMPH $file

  7127. }

  7128. 

  7129. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7130. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7131. 

  7132. if test -n "$WARNINGS"; then

  7133.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  7134.     enabled fatal_warnings && exit 1

  7135. fi

  7136. 

  7137. # Settings for pkg-config files

  7138. 

  7139. cat > ffbuild/config.sh <<EOF

  7140. # Automatically generated by configure - do not modify!

  7141. shared=$shared

  7142. build_suffix=$build_suffix

  7143. prefix=$prefix

  7144. libdir=$libdir

  7145. incdir=$incdir

  7146. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7147. source_path=${source_path}

  7148. LIBPREF=${LIBPREF}

  7149. LIBSUF=${LIBSUF}

  7150. extralibs_avutil="$avutil_extralibs"

  7151. extralibs_avcodec="$avcodec_extralibs"

  7152. extralibs_avformat="$avformat_extralibs"

  7153. extralibs_avdevice="$avdevice_extralibs"

  7154. extralibs_avfilter="$avfilter_extralibs"

  7155. extralibs_avresample="$avresample_extralibs"

  7156. extralibs_postproc="$postproc_extralibs"

  7157. extralibs_swscale="$swscale_extralibs"

  7158. extralibs_swresample="$swresample_extralibs"

  7159. EOF

  7160. 

  7161. for lib in $LIBRARY_LIST; do

  7162.     lib_deps="$(eval echo \$${lib}_deps)"

  7163.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  7164. done