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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_safe(){

  588.     var=$1

  589.     shift

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

  591. }

  592. 

  593. get_safe(){

  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_safe(){

  640.     for var; do

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

  642.     done

  643. }

  644. 

  645. disable_safe(){

  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_safe $header

  1112.     check_cpp "$@" <<EOF && enable_safe $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_safe $header

  1124.     {

  1125.        echo "#include <$header>"

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

  1127.     } | check_objcc && check_stat "$TMPO" && enable_safe $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_safe $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_safe $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_safe "${name}_cflags"    $pkg_cflags &&

  1286.         set_safe "${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_safe "$type"

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

  1331. }

  1332. 

  1333. check_struct(){

  1334.     log check_struct "$@"

  1335.     headers=$1

  1336.     struct=$2

  1337.     member=$3

  1338.     shift 3

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

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

  1341.         enable_safe "${struct}_${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    $(get_safe "${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_8

  1885.     local_aligned_16

  1886.     local_aligned_32

  1887.     simd_align_16

  1888.     simd_align_32

  1889. "

  1890. 

  1891. BUILTIN_LIST="

  1892.     atomic_cas_ptr

  1893.     machine_rw_barrier

  1894.     MemoryBarrier

  1895.     mm_empty

  1896.     rdtsc

  1897.     sarestart

  1898.     sem_timedwait

  1899.     sync_val_compare_and_swap

  1900. "

  1901. HAVE_LIST_CMDLINE="

  1902.     inline_asm

  1903.     symver

  1904.     x86asm

  1905. "

  1906. 

  1907. HAVE_LIST_PUB="

  1908.     bigendian

  1909.     fast_unaligned

  1910. "

  1911. 

  1912. HEADERS_LIST="

  1913.     altivec_h

  1914.     arpa_inet_h

  1915.     asm_types_h

  1916.     cdio_paranoia_h

  1917.     cdio_paranoia_paranoia_h

  1918.     cuda_h

  1919.     d3d11_h

  1920.     dispatch_dispatch_h

  1921.     dev_bktr_ioctl_bt848_h

  1922.     dev_bktr_ioctl_meteor_h

  1923.     dev_ic_bt8xx_h

  1924.     dev_video_bktr_ioctl_bt848_h

  1925.     dev_video_meteor_ioctl_meteor_h

  1926.     direct_h

  1927.     dirent_h

  1928.     dlfcn_h

  1929.     dxgidebug_h

  1930.     dxva_h

  1931.     ES2_gl_h

  1932.     gsm_h

  1933.     io_h

  1934.     mach_mach_time_h

  1935.     machine_ioctl_bt848_h

  1936.     machine_ioctl_meteor_h

  1937.     malloc_h

  1938.     opencv2_core_core_c_h

  1939.     OpenGL_gl3_h

  1940.     poll_h

  1941.     soundcard_h

  1942.     stdatomic_h

  1943.     sys_mman_h

  1944.     sys_param_h

  1945.     sys_resource_h

  1946.     sys_select_h

  1947.     sys_soundcard_h

  1948.     sys_time_h

  1949.     sys_un_h

  1950.     sys_videoio_h

  1951.     termios_h

  1952.     udplite_h

  1953.     unistd_h

  1954.     valgrind_valgrind_h

  1955.     windows_h

  1956.     winsock2_h

  1957. "

  1958. 

  1959. INTRINSICS_LIST="

  1960.     intrinsics_neon

  1961. "

  1962. 

  1963. COMPLEX_FUNCS="

  1964.     cabs

  1965.     cexp

  1966. "

  1967. 

  1968. MATH_FUNCS="

  1969.     atanf

  1970.     atan2f

  1971.     cbrt

  1972.     cbrtf

  1973.     copysign

  1974.     cosf

  1975.     erf

  1976.     exp2

  1977.     exp2f

  1978.     expf

  1979.     hypot

  1980.     isfinite

  1981.     isinf

  1982.     isnan

  1983.     ldexpf

  1984.     llrint

  1985.     llrintf

  1986.     log2

  1987.     log2f

  1988.     log10f

  1989.     lrint

  1990.     lrintf

  1991.     powf

  1992.     rint

  1993.     round

  1994.     roundf

  1995.     sinf

  1996.     trunc

  1997.     truncf

  1998. "

  1999. 

  2000. SYSTEM_FUNCS="

  2001.     access

  2002.     aligned_malloc

  2003.     arc4random

  2004.     clock_gettime

  2005.     closesocket

  2006.     CommandLineToArgvW

  2007.     CoTaskMemFree

  2008.     CryptGenRandom

  2009.     fcntl

  2010.     flt_lim

  2011.     fork

  2012.     getaddrinfo

  2013.     gethrtime

  2014.     getopt

  2015.     GetProcessAffinityMask

  2016.     GetProcessMemoryInfo

  2017.     GetProcessTimes

  2018.     getrusage

  2019.     GetSystemTimeAsFileTime

  2020.     gettimeofday

  2021.     glob

  2022.     glXGetProcAddress

  2023.     gmtime_r

  2024.     inet_aton

  2025.     isatty

  2026.     kbhit

  2027.     LoadLibrary

  2028.     localtime_r

  2029.     lstat

  2030.     lzo1x_999_compress

  2031.     mach_absolute_time

  2032.     MapViewOfFile

  2033.     memalign

  2034.     mkstemp

  2035.     mmap

  2036.     mprotect

  2037.     nanosleep

  2038.     PeekNamedPipe

  2039.     posix_memalign

  2040.     pthread_cancel

  2041.     sched_getaffinity

  2042.     SetConsoleTextAttribute

  2043.     SetConsoleCtrlHandler

  2044.     setmode

  2045.     setrlimit

  2046.     Sleep

  2047.     strerror_r

  2048.     sysconf

  2049.     sysctl

  2050.     usleep

  2051.     UTGetOSTypeFromString

  2052.     VirtualAlloc

  2053.     wglGetProcAddress

  2054. "

  2055. 

  2056. TOOLCHAIN_FEATURES="

  2057.     as_dn_directive

  2058.     as_fpu_directive

  2059.     as_func

  2060.     as_object_arch

  2061.     asm_mod_q

  2062.     attribute_may_alias

  2063.     attribute_packed

  2064.     blocks_extension

  2065.     ebp_available

  2066.     ebx_available

  2067.     gnu_as

  2068.     gnu_windres

  2069.     ibm_asm

  2070.     inline_asm_direct_symbol_refs

  2071.     inline_asm_labels

  2072.     inline_asm_nonlocal_labels

  2073.     pragma_deprecated

  2074.     rsync_contimeout

  2075.     symver_asm_label

  2076.     symver_gnu_asm

  2077.     vfp_args

  2078.     xform_asm

  2079.     xmm_clobbers

  2080. "

  2081. 

  2082. TYPES_LIST="

  2083.     CONDITION_VARIABLE_Ptr

  2084.     kCMVideoCodecType_HEVC

  2085.     socklen_t

  2086.     struct_addrinfo

  2087.     struct_group_source_req

  2088.     struct_ip_mreq_source

  2089.     struct_ipv6_mreq

  2090.     struct_msghdr_msg_flags

  2091.     struct_pollfd

  2092.     struct_rusage_ru_maxrss

  2093.     struct_sctp_event_subscribe

  2094.     struct_sockaddr_in6

  2095.     struct_sockaddr_sa_len

  2096.     struct_sockaddr_storage

  2097.     struct_stat_st_mtim_tv_nsec

  2098.     struct_v4l2_frmivalenum_discrete

  2099. "

  2100. 

  2101. HAVE_LIST="

  2102.     $ARCH_EXT_LIST

  2103.     $(add_suffix _external $ARCH_EXT_LIST)

  2104.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2105.     $ARCH_FEATURES

  2106.     $ATOMICS_LIST

  2107.     $BUILTIN_LIST

  2108.     $COMPLEX_FUNCS

  2109.     $HAVE_LIST_CMDLINE

  2110.     $HAVE_LIST_PUB

  2111.     $HEADERS_LIST

  2112.     $INTRINSICS_LIST

  2113.     $MATH_FUNCS

  2114.     $SYSTEM_FUNCS

  2115.     $THREADS_LIST

  2116.     $TOOLCHAIN_FEATURES

  2117.     $TYPES_LIST

  2118.     atomics_native

  2119.     dos_paths

  2120.     libc_msvcrt

  2121.     makeinfo

  2122.     makeinfo_html

  2123.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2124.     perl

  2125.     pod2man

  2126.     section_data_rel_ro

  2127.     texi2html

  2128.     threads

  2129.     uwp

  2130.     vaapi_drm

  2131.     vaapi_x11

  2132.     vdpau_x11

  2133.     winrt

  2134. "

  2135. 

  2136. # options emitted with CONFIG_ prefix but not available on the command line

  2137. CONFIG_EXTRA="

  2138.     aandcttables

  2139.     ac3dsp

  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="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. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2524. metasound_decoder_select="lsp mdct sinewin"

  2525. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2526. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2527. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2528. mjpegb_decoder_select="mjpeg_decoder"

  2529. mlp_decoder_select="mlp_parser"

  2530. mlp_encoder_select="lpc"

  2531. motionpixels_decoder_select="bswapdsp"

  2532. mp1_decoder_select="mpegaudio"

  2533. mp1float_decoder_select="mpegaudio"

  2534. mp2_decoder_select="mpegaudio"

  2535. mp2float_decoder_select="mpegaudio"

  2536. mp3_decoder_select="mpegaudio"

  2537. mp3adu_decoder_select="mpegaudio"

  2538. mp3adufloat_decoder_select="mpegaudio"

  2539. mp3float_decoder_select="mpegaudio"

  2540. mp3on4_decoder_select="mpegaudio"

  2541. mp3on4float_decoder_select="mpegaudio"

  2542. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2543. mpc8_decoder_select="mpegaudiodsp"

  2544. mpegvideo_decoder_select="mpegvideo"

  2545. mpeg1video_decoder_select="mpegvideo"

  2546. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2547. mpeg2video_decoder_select="mpegvideo"

  2548. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2549. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2550. mpeg4_encoder_select="h263_encoder"

  2551. msa1_decoder_select="mss34dsp"

  2552. mscc_decoder_select="zlib"

  2553. msmpeg4v1_decoder_select="h263_decoder"

  2554. msmpeg4v2_decoder_select="h263_decoder"

  2555. msmpeg4v2_encoder_select="h263_encoder"

  2556. msmpeg4v3_decoder_select="h263_decoder"

  2557. msmpeg4v3_encoder_select="h263_encoder"

  2558. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2559. mts2_decoder_select="mss34dsp"

  2560. mxpeg_decoder_select="mjpeg_decoder"

  2561. nellymoser_decoder_select="mdct sinewin"

  2562. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2563. nuv_decoder_select="idctdsp lzo"

  2564. on2avc_decoder_select="mdct"

  2565. opus_decoder_deps="swresample"

  2566. opus_decoder_select="mdct15"

  2567. opus_encoder_select="audio_frame_queue mdct15"

  2568. png_decoder_select="zlib"

  2569. png_encoder_select="llvidencdsp zlib"

  2570. prores_decoder_select="blockdsp idctdsp"

  2571. prores_encoder_select="fdctdsp"

  2572. qcelp_decoder_select="lsp"

  2573. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2574. ra_144_decoder_select="audiodsp"

  2575. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2576. ralf_decoder_select="golomb"

  2577. rawvideo_decoder_select="bswapdsp"

  2578. rscc_decoder_select="zlib"

  2579. rtjpeg_decoder_select="me_cmp"

  2580. rv10_decoder_select="h263_decoder"

  2581. rv10_encoder_select="h263_encoder"

  2582. rv20_decoder_select="h263_decoder"

  2583. rv20_encoder_select="h263_encoder"

  2584. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2585. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2586. screenpresso_decoder_select="zlib"

  2587. shorten_decoder_select="bswapdsp"

  2588. sipr_decoder_select="lsp"

  2589. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2590. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2591. sonic_decoder_select="golomb rangecoder"

  2592. sonic_encoder_select="golomb rangecoder"

  2593. sonic_ls_encoder_select="golomb rangecoder"

  2594. sp5x_decoder_select="mjpeg_decoder"

  2595. srgc_decoder_select="zlib"

  2596. svq1_decoder_select="hpeldsp"

  2597. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2598. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2599. svq3_decoder_suggest="zlib"

  2600. tak_decoder_select="audiodsp"

  2601. tdsc_decoder_select="zlib mjpeg_decoder"

  2602. theora_decoder_select="vp3_decoder"

  2603. thp_decoder_select="mjpeg_decoder"

  2604. tiff_decoder_suggest="zlib lzma"

  2605. tiff_encoder_suggest="zlib"

  2606. truehd_decoder_select="mlp_parser"

  2607. truehd_encoder_select="lpc"

  2608. truemotion2_decoder_select="bswapdsp"

  2609. truespeech_decoder_select="bswapdsp"

  2610. tscc_decoder_select="zlib"

  2611. twinvq_decoder_select="mdct lsp sinewin"

  2612. txd_decoder_select="texturedsp"

  2613. utvideo_decoder_select="bswapdsp llviddsp"

  2614. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2615. vble_decoder_select="llviddsp"

  2616. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2617. vc1_qsv_decoder_deps="libmfx"

  2618. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2619. vc1image_decoder_select="vc1_decoder"

  2620. vorbis_decoder_select="mdct"

  2621. vorbis_encoder_select="mdct"

  2622. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2623. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2624. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2625. vp6a_decoder_select="vp6_decoder"

  2626. vp6f_decoder_select="vp6_decoder"

  2627. vp7_decoder_select="h264pred videodsp vp8dsp"

  2628. vp8_decoder_select="h264pred videodsp vp8dsp"

  2629. vp9_decoder_select="videodsp vp9_parser"

  2630. webp_decoder_select="vp8_decoder exif"

  2631. wmalossless_decoder_select="llauddsp"

  2632. wmapro_decoder_select="mdct sinewin wma_freqs"

  2633. wmav1_decoder_select="mdct sinewin wma_freqs"

  2634. wmav1_encoder_select="mdct sinewin wma_freqs"

  2635. wmav2_decoder_select="mdct sinewin wma_freqs"

  2636. wmav2_encoder_select="mdct sinewin wma_freqs"

  2637. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2638. wmv1_decoder_select="h263_decoder"

  2639. wmv1_encoder_select="h263_encoder"

  2640. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2641. wmv2_encoder_select="h263_encoder wmv2dsp"

  2642. wmv3_decoder_select="vc1_decoder"

  2643. wmv3image_decoder_select="wmv3_decoder"

  2644. xma1_decoder_select="wmapro_decoder"

  2645. xma2_decoder_select="wmapro_decoder"

  2646. zerocodec_decoder_select="zlib"

  2647. zlib_decoder_select="zlib"

  2648. zlib_encoder_select="zlib"

  2649. zmbv_decoder_select="zlib"

  2650. zmbv_encoder_select="zlib"

  2651. 

  2652. # hardware accelerators

  2653. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2654. cuda_deps_any="libdl LoadLibrary"

  2655. cuvid_deps="cuda"

  2656. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2657. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2658. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2659. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2660. xvmc_deps="X11_extensions_XvMClib_h"

  2661. 

  2662. h263_vaapi_hwaccel_deps="vaapi"

  2663. h263_vaapi_hwaccel_select="h263_decoder"

  2664. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2665. h263_videotoolbox_hwaccel_select="h263_decoder"

  2666. h264_cuvid_hwaccel_deps="cuda cuvid"

  2667. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2668. h264_d3d11va_hwaccel_deps="d3d11va"

  2669. h264_d3d11va_hwaccel_select="h264_decoder"

  2670. h264_d3d11va2_hwaccel_deps="d3d11va"

  2671. h264_d3d11va2_hwaccel_select="h264_decoder"

  2672. h264_dxva2_hwaccel_deps="dxva2"

  2673. h264_dxva2_hwaccel_select="h264_decoder"

  2674. h264_mediacodec_hwaccel_deps="mediacodec"

  2675. h264_mmal_hwaccel_deps="mmal"

  2676. h264_qsv_hwaccel_deps="libmfx"

  2677. h264_vaapi_hwaccel_deps="vaapi"

  2678. h264_vaapi_hwaccel_select="h264_decoder"

  2679. h264_vdpau_hwaccel_deps="vdpau"

  2680. h264_vdpau_hwaccel_select="h264_decoder"

  2681. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2682. h264_videotoolbox_hwaccel_select="h264_decoder"

  2683. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2684. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2685. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2686. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2687. hevc_mediacodec_hwaccel_deps="mediacodec"

  2688. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2689. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2690. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2691. hevc_dxva2_hwaccel_select="hevc_decoder"

  2692. hevc_qsv_hwaccel_deps="libmfx"

  2693. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2694. hevc_vaapi_hwaccel_select="hevc_decoder"

  2695. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2696. hevc_vdpau_hwaccel_select="hevc_decoder"

  2697. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2698. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2699. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2700. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2701. mpeg_xvmc_hwaccel_deps="xvmc"

  2702. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2703. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2704. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2705. mpeg1_vdpau_hwaccel_deps="vdpau"

  2706. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2707. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2708. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2709. mpeg1_xvmc_hwaccel_deps="xvmc"

  2710. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2711. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2712. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2713. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2714. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2715. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2716. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2717. mpeg2_dxva2_hwaccel_deps="dxva2"

  2718. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2719. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2720. mpeg2_mmal_hwaccel_deps="mmal"

  2721. mpeg2_qsv_hwaccel_deps="libmfx"

  2722. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2723. mpeg2_vaapi_hwaccel_deps="vaapi"

  2724. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2725. mpeg2_vdpau_hwaccel_deps="vdpau"

  2726. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2727. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2728. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2729. mpeg2_xvmc_hwaccel_deps="xvmc"

  2730. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2731. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2732. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2733. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2734. mpeg4_mmal_hwaccel_deps="mmal"

  2735. mpeg4_vaapi_hwaccel_deps="vaapi"

  2736. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2737. mpeg4_vdpau_hwaccel_deps="vdpau"

  2738. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2739. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2740. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2741. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2742. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2743. vc1_d3d11va_hwaccel_deps="d3d11va"

  2744. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2745. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2746. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2747. vc1_dxva2_hwaccel_deps="dxva2"

  2748. vc1_dxva2_hwaccel_select="vc1_decoder"

  2749. vc1_mmal_hwaccel_deps="mmal"

  2750. vc1_qsv_hwaccel_deps="libmfx"

  2751. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2752. vc1_vaapi_hwaccel_deps="vaapi"

  2753. vc1_vaapi_hwaccel_select="vc1_decoder"

  2754. vc1_vdpau_hwaccel_deps="vdpau"

  2755. vc1_vdpau_hwaccel_select="vc1_decoder"

  2756. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2757. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2758. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2759. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2760. vp8_mediacodec_hwaccel_deps="mediacodec"

  2761. vp8_qsv_hwaccel_deps="libmfx"

  2762. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2763. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2764. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2765. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2766. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2767. vp9_dxva2_hwaccel_select="vp9_decoder"

  2768. vp9_mediacodec_hwaccel_deps="mediacodec"

  2769. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2770. vp9_vaapi_hwaccel_select="vp9_decoder"

  2771. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2772. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2773. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2774. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2775. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2776. 

  2777. # hardware-accelerated codecs

  2778. omx_deps="libdl pthreads"

  2779. omx_rpi_select="omx"

  2780. qsvdec_select="qsv"

  2781. qsvenc_select="qsv"

  2782. vaapi_encode_deps="vaapi"

  2783. v4l2_m2m_deps_any="linux_videodev2_h"

  2784. 

  2785. hwupload_cuda_filter_deps="cuda"

  2786. scale_npp_filter_deps="cuda libnpp"

  2787. scale_cuda_filter_deps="cuda_sdk"

  2788. thumbnail_cuda_filter_deps="cuda_sdk"

  2789. 

  2790. nvenc_deps="cuda"

  2791. nvenc_deps_any="libdl LoadLibrary"

  2792. nvenc_encoder_deps="nvenc"

  2793. 

  2794. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2795. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2796. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2797. h264_cuvid_decoder_deps="cuda cuvid"

  2798. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2799. h264_mediacodec_decoder_deps="mediacodec"

  2800. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2801. h264_mmal_decoder_deps="mmal"

  2802. h264_nvenc_encoder_deps="nvenc"

  2803. h264_omx_encoder_deps="omx"

  2804. h264_qsv_decoder_deps="libmfx"

  2805. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2806. h264_qsv_encoder_deps="libmfx"

  2807. h264_qsv_encoder_select="qsvenc"

  2808. h264_rkmpp_decoder_deps="rkmpp"

  2809. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2810. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2811. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2812. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2813. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2814. hevc_cuvid_decoder_deps="cuda cuvid"

  2815. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2816. hevc_mediacodec_decoder_deps="mediacodec"

  2817. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2818. hevc_nvenc_encoder_deps="nvenc"

  2819. hevc_qsv_decoder_deps="libmfx"

  2820. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2821. hevc_qsv_encoder_deps="libmfx"

  2822. hevc_qsv_encoder_select="hevcparse qsvenc"

  2823. hevc_rkmpp_decoder_deps="rkmpp"

  2824. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2825. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2826. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2827. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2828. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2829. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2830. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2831. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2832. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2833. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2834. mpeg2_crystalhd_decoder_select="crystalhd"

  2835. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2836. mpeg2_mmal_decoder_deps="mmal"

  2837. mpeg2_mediacodec_decoder_deps="mediacodec"

  2838. mpeg2_qsv_decoder_deps="libmfx"

  2839. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2840. mpeg2_qsv_encoder_deps="libmfx"

  2841. mpeg2_qsv_encoder_select="qsvenc"

  2842. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2843. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2844. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2845. mpeg4_crystalhd_decoder_select="crystalhd"

  2846. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2847. mpeg4_mediacodec_decoder_deps="mediacodec"

  2848. mpeg4_mmal_decoder_deps="mmal"

  2849. mpeg4_omx_encoder_deps="omx"

  2850. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2851. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2852. msmpeg4_crystalhd_decoder_select="crystalhd"

  2853. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2854. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2855. vc1_crystalhd_decoder_select="crystalhd"

  2856. vc1_cuvid_decoder_deps="cuda cuvid"

  2857. vc1_mmal_decoder_deps="mmal"

  2858. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2859. vp8_cuvid_decoder_deps="cuda cuvid"

  2860. vp8_mediacodec_decoder_deps="mediacodec"

  2861. vp8_qsv_decoder_deps="libmfx"

  2862. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2863. vp8_rkmpp_decoder_deps="rkmpp"

  2864. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2865. vp8_vaapi_encoder_select="vaapi_encode"

  2866. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2867. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2868. vp9_cuvid_decoder_deps="cuda cuvid"

  2869. vp9_mediacodec_decoder_deps="mediacodec"

  2870. vp9_rkmpp_decoder_deps="rkmpp"

  2871. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2872. vp9_vaapi_encoder_select="vaapi_encode"

  2873. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2874. wmv3_crystalhd_decoder_select="crystalhd"

  2875. 

  2876. # parsers

  2877. h264_parser_select="golomb h264dsp h264parse"

  2878. hevc_parser_select="hevcparse"

  2879. mpegaudio_parser_select="mpegaudioheader"

  2880. mpegvideo_parser_select="mpegvideo"

  2881. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2882. vc1_parser_select="vc1dsp"

  2883. 

  2884. # bitstream_filters

  2885. h264_metadata_bsf_select="cbs_h264"

  2886. h264_redundant_pps_bsf_select="cbs_h264"

  2887. hevc_metadata_bsf_select="cbs_h265"

  2888. mjpeg2jpeg_bsf_select="jpegtables"

  2889. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2890. trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"

  2891. 

  2892. # external libraries

  2893. aac_at_decoder_deps="audiotoolbox"

  2894. ac3_at_decoder_deps="audiotoolbox"

  2895. ac3_at_decoder_select="ac3_parser"

  2896. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2897. alac_at_decoder_deps="audiotoolbox"

  2898. amr_nb_at_decoder_deps="audiotoolbox"

  2899. avisynth_deps_any="libdl LoadLibrary"

  2900. avisynth_demuxer_deps="avisynth"

  2901. avisynth_demuxer_select="riffdec"

  2902. eac3_at_decoder_deps="audiotoolbox"

  2903. eac3_at_decoder_select="ac3_parser"

  2904. gsm_ms_at_decoder_deps="audiotoolbox"

  2905. ilbc_at_decoder_deps="audiotoolbox"

  2906. mp1_at_decoder_deps="audiotoolbox"

  2907. mp2_at_decoder_deps="audiotoolbox"

  2908. mp3_at_decoder_deps="audiotoolbox"

  2909. mp1_at_decoder_select="mpegaudioheader"

  2910. mp2_at_decoder_select="mpegaudioheader"

  2911. mp3_at_decoder_select="mpegaudioheader"

  2912. pcm_alaw_at_decoder_deps="audiotoolbox"

  2913. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2914. qdmc_at_decoder_deps="audiotoolbox"

  2915. qdm2_at_decoder_deps="audiotoolbox"

  2916. aac_at_encoder_deps="audiotoolbox"

  2917. aac_at_encoder_select="audio_frame_queue"

  2918. alac_at_encoder_deps="audiotoolbox"

  2919. alac_at_encoder_select="audio_frame_queue"

  2920. ilbc_at_encoder_deps="audiotoolbox"

  2921. ilbc_at_encoder_select="audio_frame_queue"

  2922. pcm_alaw_at_encoder_deps="audiotoolbox"

  2923. pcm_alaw_at_encoder_select="audio_frame_queue"

  2924. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2925. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2926. chromaprint_muxer_deps="chromaprint"

  2927. h264_videotoolbox_encoder_deps="pthreads"

  2928. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  2929. libcelt_decoder_deps="libcelt"

  2930. libfdk_aac_decoder_deps="libfdk_aac"

  2931. libfdk_aac_encoder_deps="libfdk_aac"

  2932. libfdk_aac_encoder_select="audio_frame_queue"

  2933. libgme_demuxer_deps="libgme"

  2934. libgsm_decoder_deps="libgsm"

  2935. libgsm_encoder_deps="libgsm"

  2936. libgsm_ms_decoder_deps="libgsm"

  2937. libgsm_ms_encoder_deps="libgsm"

  2938. libilbc_decoder_deps="libilbc"

  2939. libilbc_encoder_deps="libilbc"

  2940. libkvazaar_encoder_deps="libkvazaar"

  2941. libmodplug_demuxer_deps="libmodplug"

  2942. libmp3lame_encoder_deps="libmp3lame"

  2943. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2944. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2945. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2946. libopencore_amrnb_encoder_select="audio_frame_queue"

  2947. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2948. libopenh264_decoder_deps="libopenh264"

  2949. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2950. libopenh264_encoder_deps="libopenh264"

  2951. libopenjpeg_decoder_deps="libopenjpeg"

  2952. libopenjpeg_encoder_deps="libopenjpeg"

  2953. libopenmpt_demuxer_deps="libopenmpt"

  2954. libopus_decoder_deps="libopus"

  2955. libopus_encoder_deps="libopus"

  2956. libopus_encoder_select="audio_frame_queue"

  2957. librsvg_decoder_deps="librsvg"

  2958. libshine_encoder_deps="libshine"

  2959. libshine_encoder_select="audio_frame_queue"

  2960. libspeex_decoder_deps="libspeex"

  2961. libspeex_encoder_deps="libspeex"

  2962. libspeex_encoder_select="audio_frame_queue"

  2963. libtheora_encoder_deps="libtheora"

  2964. libtwolame_encoder_deps="libtwolame"

  2965. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2966. libvorbis_decoder_deps="libvorbis"

  2967. libvorbis_encoder_deps="libvorbis libvorbisenc"

  2968. libvorbis_encoder_select="audio_frame_queue"

  2969. libvpx_vp8_decoder_deps="libvpx"

  2970. libvpx_vp8_encoder_deps="libvpx"

  2971. libvpx_vp9_decoder_deps="libvpx"

  2972. libvpx_vp9_encoder_deps="libvpx"

  2973. libwavpack_encoder_deps="libwavpack"

  2974. libwavpack_encoder_select="audio_frame_queue"

  2975. libwebp_encoder_deps="libwebp"

  2976. libwebp_anim_encoder_deps="libwebp"

  2977. libx262_encoder_deps="libx262"

  2978. libx264_encoder_deps="libx264"

  2979. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2980. libx264rgb_encoder_select="libx264_encoder"

  2981. libx265_encoder_deps="libx265"

  2982. libxavs_encoder_deps="libxavs"

  2983. libxvid_encoder_deps="libxvid"

  2984. libzvbi_teletext_decoder_deps="libzvbi"

  2985. videotoolbox_suggest="coreservices"

  2986. videotoolbox_deps="corefoundation coremedia corevideo"

  2987. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2988. 

  2989. # demuxers / muxers

  2990. ac3_demuxer_select="ac3_parser"

  2991. aiff_muxer_select="iso_media"

  2992. asf_demuxer_select="riffdec"

  2993. asf_o_demuxer_select="riffdec"

  2994. asf_muxer_select="riffenc"

  2995. asf_stream_muxer_select="asf_muxer"

  2996. avi_demuxer_select="iso_media riffdec exif"

  2997. avi_muxer_select="riffenc"

  2998. caf_demuxer_select="iso_media riffdec"

  2999. caf_muxer_select="iso_media"

  3000. dash_muxer_select="mp4_muxer"

  3001. dash_demuxer_deps="libxml2"

  3002. dirac_demuxer_select="dirac_parser"

  3003. dts_demuxer_select="dca_parser"

  3004. dtshd_demuxer_select="dca_parser"

  3005. dv_demuxer_select="dvprofile"

  3006. dv_muxer_select="dvprofile"

  3007. dxa_demuxer_select="riffdec"

  3008. eac3_demuxer_select="ac3_parser"

  3009. f4v_muxer_select="mov_muxer"

  3010. fifo_muxer_deps="threads"

  3011. flac_demuxer_select="flac_parser"

  3012. hds_muxer_select="flv_muxer"

  3013. hls_muxer_select="mpegts_muxer"

  3014. hls_muxer_suggest="gcrypt openssl"

  3015. image2_alias_pix_demuxer_select="image2_demuxer"

  3016. image2_brender_pix_demuxer_select="image2_demuxer"

  3017. ipod_muxer_select="mov_muxer"

  3018. ismv_muxer_select="mov_muxer"

  3019. matroska_audio_muxer_select="matroska_muxer"

  3020. matroska_demuxer_select="iso_media riffdec"

  3021. matroska_demuxer_suggest="bzlib lzo zlib"

  3022. matroska_muxer_select="iso_media riffenc"

  3023. mmf_muxer_select="riffenc"

  3024. mov_demuxer_select="iso_media riffdec"

  3025. mov_demuxer_suggest="zlib"

  3026. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3027. mp3_demuxer_select="mpegaudio_parser"

  3028. mp3_muxer_select="mpegaudioheader"

  3029. mp4_muxer_select="mov_muxer"

  3030. mpegts_demuxer_select="iso_media"

  3031. mpegts_muxer_select="adts_muxer latm_muxer"

  3032. mpegtsraw_demuxer_select="mpegts_demuxer"

  3033. mxf_d10_muxer_select="mxf_muxer"

  3034. mxf_opatom_muxer_select="mxf_muxer"

  3035. nut_muxer_select="riffenc"

  3036. nuv_demuxer_select="riffdec"

  3037. oga_muxer_select="ogg_muxer"

  3038. ogg_demuxer_select="dirac_parse"

  3039. ogv_muxer_select="ogg_muxer"

  3040. opus_muxer_select="ogg_muxer"

  3041. psp_muxer_select="mov_muxer"

  3042. rtp_demuxer_select="sdp_demuxer"

  3043. rtp_muxer_select="golomb"

  3044. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3045. rtsp_demuxer_select="http_protocol rtpdec"

  3046. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3047. sap_demuxer_select="sdp_demuxer"

  3048. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3049. sdp_demuxer_select="rtpdec"

  3050. smoothstreaming_muxer_select="ismv_muxer"

  3051. spdif_muxer_select="aac_parser"

  3052. spx_muxer_select="ogg_muxer"

  3053. swf_demuxer_suggest="zlib"

  3054. tak_demuxer_select="tak_parser"

  3055. tg2_muxer_select="mov_muxer"

  3056. tgp_muxer_select="mov_muxer"

  3057. vobsub_demuxer_select="mpegps_demuxer"

  3058. w64_demuxer_select="wav_demuxer"

  3059. w64_muxer_select="wav_muxer"

  3060. wav_demuxer_select="riffdec"

  3061. wav_muxer_select="riffenc"

  3062. webm_muxer_select="iso_media riffenc"

  3063. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3064. wtv_demuxer_select="mpegts_demuxer riffdec"

  3065. wtv_muxer_select="mpegts_muxer riffenc"

  3066. xmv_demuxer_select="riffdec"

  3067. xwma_demuxer_select="riffdec"

  3068. 

  3069. # indevs / outdevs

  3070. alsa_indev_deps="alsa"

  3071. alsa_outdev_deps="alsa"

  3072. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3073. avfoundation_indev_suggest="coregraphics applicationservices"

  3074. avfoundation_indev_extralibs="-framework Foundation"

  3075. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3076. caca_outdev_deps="libcaca"

  3077. decklink_deps_any="libdl LoadLibrary"

  3078. decklink_indev_deps="decklink threads"

  3079. decklink_indev_extralibs="-lstdc++"

  3080. decklink_outdev_deps="decklink threads"

  3081. decklink_outdev_extralibs="-lstdc++"

  3082. libndi_newtek_indev_deps="libndi_newtek"

  3083. libndi_newtek_indev_extralibs="-lndi"

  3084. libndi_newtek_outdev_deps="libndi_newtek"

  3085. libndi_newtek_outdev_extralibs="-lndi"

  3086. dshow_indev_deps="IBaseFilter"

  3087. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3088. fbdev_indev_deps="linux_fb_h"

  3089. fbdev_outdev_deps="linux_fb_h"

  3090. gdigrab_indev_deps="CreateDIBSection"

  3091. gdigrab_indev_extralibs="-lgdi32"

  3092. gdigrab_indev_select="bmp_decoder"

  3093. iec61883_indev_deps="libiec61883"

  3094. jack_indev_deps="libjack"

  3095. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3096. kmsgrab_indev_deps="libdrm"

  3097. lavfi_indev_deps="avfilter"

  3098. libcdio_indev_deps="libcdio"

  3099. libdc1394_indev_deps="libdc1394"

  3100. openal_indev_deps="openal"

  3101. opengl_outdev_deps="opengl"

  3102. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3103. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3104. pulse_indev_deps="libpulse"

  3105. pulse_outdev_deps="libpulse"

  3106. sdl2_outdev_deps="sdl2"

  3107. sndio_indev_deps="sndio"

  3108. sndio_outdev_deps="sndio"

  3109. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3110. v4l2_indev_suggest="libv4l2"

  3111. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3112. v4l2_outdev_suggest="libv4l2"

  3113. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3114. xcbgrab_indev_deps="libxcb"

  3115. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3116. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3117. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3118. 

  3119. # protocols

  3120. async_protocol_deps="threads"

  3121. bluray_protocol_deps="libbluray"

  3122. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3123. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3124. ffrtmpcrypt_protocol_select="tcp_protocol"

  3125. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3126. ffrtmphttp_protocol_select="http_protocol"

  3127. ftp_protocol_select="tcp_protocol"

  3128. gopher_protocol_select="network"

  3129. http_protocol_select="tcp_protocol"

  3130. http_protocol_suggest="zlib"

  3131. httpproxy_protocol_select="tcp_protocol"

  3132. httpproxy_protocol_suggest="zlib"

  3133. https_protocol_select="tls_protocol"

  3134. https_protocol_suggest="zlib"

  3135. icecast_protocol_select="http_protocol"

  3136. librtmp_protocol_deps="librtmp"

  3137. librtmpe_protocol_deps="librtmp"

  3138. librtmps_protocol_deps="librtmp"

  3139. librtmpt_protocol_deps="librtmp"

  3140. librtmpte_protocol_deps="librtmp"

  3141. libsmbclient_protocol_deps="libsmbclient gplv3"

  3142. libssh_protocol_deps="libssh"

  3143. mmsh_protocol_select="http_protocol"

  3144. mmst_protocol_select="network"

  3145. rtmp_protocol_conflict="librtmp_protocol"

  3146. rtmp_protocol_select="tcp_protocol"

  3147. rtmp_protocol_suggest="zlib"

  3148. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3149. rtmpe_protocol_suggest="zlib"

  3150. rtmps_protocol_conflict="librtmp_protocol"

  3151. rtmps_protocol_select="tls_protocol"

  3152. rtmps_protocol_suggest="zlib"

  3153. rtmpt_protocol_select="ffrtmphttp_protocol"

  3154. rtmpt_protocol_suggest="zlib"

  3155. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3156. rtmpte_protocol_suggest="zlib"

  3157. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3158. rtmpts_protocol_suggest="zlib"

  3159. rtp_protocol_select="udp_protocol"

  3160. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3161. sctp_protocol_select="network"

  3162. srtp_protocol_select="rtp_protocol srtp"

  3163. tcp_protocol_select="network"

  3164. tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"

  3165. tls_gnutls_protocol_deps="gnutls"

  3166. tls_gnutls_protocol_select="tcp_protocol"

  3167. tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"

  3168. tls_openssl_protocol_deps="openssl"

  3169. tls_openssl_protocol_select="tcp_protocol"

  3170. tls_schannel_protocol_deps="schannel"

  3171. tls_schannel_protocol_select="tcp_protocol"

  3172. tls_securetransport_protocol_deps="securetransport"

  3173. tls_securetransport_protocol_select="tcp_protocol"

  3174. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3175. udp_protocol_select="network"

  3176. udplite_protocol_select="network"

  3177. unix_protocol_deps="sys_un_h"

  3178. unix_protocol_select="network"

  3179. 

  3180. # filters

  3181. afftfilt_filter_deps="avcodec"

  3182. afftfilt_filter_select="fft"

  3183. afir_filter_deps="avcodec"

  3184. afir_filter_select="fft"

  3185. amovie_filter_deps="avcodec avformat"

  3186. aresample_filter_deps="swresample"

  3187. ass_filter_deps="libass"

  3188. atempo_filter_deps="avcodec"

  3189. atempo_filter_select="rdft"

  3190. azmq_filter_deps="libzmq"

  3191. blackframe_filter_deps="gpl"

  3192. boxblur_filter_deps="gpl"

  3193. bs2b_filter_deps="libbs2b"

  3194. colormatrix_filter_deps="gpl"

  3195. coreimage_filter_deps="coreimage appkit"

  3196. coreimage_filter_extralibs="-framework OpenGL"

  3197. coreimagesrc_filter_deps="coreimage appkit"

  3198. coreimagesrc_filter_extralibs="-framework OpenGL"

  3199. cover_rect_filter_deps="avcodec avformat gpl"

  3200. cropdetect_filter_deps="gpl"

  3201. deinterlace_qsv_filter_deps="libmfx"

  3202. deinterlace_vaapi_filter_deps="vaapi"

  3203. delogo_filter_deps="gpl"

  3204. deshake_filter_select="pixelutils"

  3205. deshake_filter_suggest="opencl"

  3206. drawtext_filter_deps="libfreetype"

  3207. drawtext_filter_suggest="libfontconfig libfribidi"

  3208. elbg_filter_deps="avcodec"

  3209. eq_filter_deps="gpl"

  3210. fftfilt_filter_deps="avcodec"

  3211. fftfilt_filter_select="rdft"

  3212. find_rect_filter_deps="avcodec avformat gpl"

  3213. firequalizer_filter_deps="avcodec"

  3214. firequalizer_filter_select="rdft"

  3215. flite_filter_deps="libflite"

  3216. framerate_filter_select="pixelutils"

  3217. frei0r_filter_deps="frei0r libdl"

  3218. frei0r_src_filter_deps="frei0r libdl"

  3219. fspp_filter_deps="gpl"

  3220. geq_filter_deps="gpl"

  3221. histeq_filter_deps="gpl"

  3222. hqdn3d_filter_deps="gpl"

  3223. interlace_filter_deps="gpl"

  3224. kerndeint_filter_deps="gpl"

  3225. ladspa_filter_deps="ladspa libdl"

  3226. mcdeint_filter_deps="avcodec gpl"

  3227. movie_filter_deps="avcodec avformat"

  3228. mpdecimate_filter_deps="gpl"

  3229. mpdecimate_filter_select="pixelutils"

  3230. mptestsrc_filter_deps="gpl"

  3231. negate_filter_deps="lut_filter"

  3232. nnedi_filter_deps="gpl"

  3233. ocr_filter_deps="libtesseract"

  3234. ocv_filter_deps="libopencv"

  3235. owdenoise_filter_deps="gpl"

  3236. pan_filter_deps="swresample"

  3237. perspective_filter_deps="gpl"

  3238. phase_filter_deps="gpl"

  3239. pp7_filter_deps="gpl"

  3240. pp_filter_deps="gpl postproc"

  3241. pullup_filter_deps="gpl"

  3242. removelogo_filter_deps="avcodec avformat swscale"

  3243. repeatfields_filter_deps="gpl"

  3244. resample_filter_deps="avresample"

  3245. rubberband_filter_deps="librubberband"

  3246. sab_filter_deps="gpl swscale"

  3247. scale2ref_filter_deps="swscale"

  3248. scale_filter_deps="swscale"

  3249. scale_qsv_filter_deps="libmfx"

  3250. select_filter_select="pixelutils"

  3251. showcqt_filter_deps="avcodec avformat swscale"

  3252. showcqt_filter_suggest="libfontconfig libfreetype"

  3253. showcqt_filter_select="fft"

  3254. showfreqs_filter_deps="avcodec"

  3255. showfreqs_filter_select="fft"

  3256. showspectrum_filter_deps="avcodec"

  3257. showspectrum_filter_select="fft"

  3258. showspectrumpic_filter_deps="avcodec"

  3259. showspectrumpic_filter_select="fft"

  3260. signature_filter_deps="gpl avcodec avformat"

  3261. smartblur_filter_deps="gpl swscale"

  3262. sofalizer_filter_deps="libmysofa avcodec"

  3263. sofalizer_filter_select="fft"

  3264. spectrumsynth_filter_deps="avcodec"

  3265. spectrumsynth_filter_select="fft"

  3266. spp_filter_deps="gpl avcodec"

  3267. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3268. stereo3d_filter_deps="gpl"

  3269. subtitles_filter_deps="avformat avcodec libass"

  3270. super2xsai_filter_deps="gpl"

  3271. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3272. tinterlace_filter_deps="gpl"

  3273. tinterlace_merge_test_deps="tinterlace_filter"

  3274. tinterlace_pad_test_deps="tinterlace_filter"

  3275. tonemap_filter_deps="const_nan"

  3276. uspp_filter_deps="gpl avcodec"

  3277. unsharp_filter_suggest="opencl"

  3278. vaguedenoiser_filter_deps="gpl"

  3279. vidstabdetect_filter_deps="libvidstab"

  3280. vidstabtransform_filter_deps="libvidstab"

  3281. libvmaf_filter_deps="libvmaf"

  3282. zmq_filter_deps="libzmq"

  3283. zoompan_filter_deps="swscale"

  3284. zscale_filter_deps="libzimg const_nan"

  3285. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3286. 

  3287. # examples

  3288. avio_dir_cmd_deps="avformat avutil"

  3289. avio_reading_deps="avformat avcodec avutil"

  3290. decode_audio_example_deps="avcodec avutil"

  3291. decode_video_example_deps="avcodec avutil"

  3292. demuxing_decoding_example_deps="avcodec avformat avutil"

  3293. encode_audio_example_deps="avcodec avutil"

  3294. encode_video_example_deps="avcodec avutil"

  3295. extract_mvs_example_deps="avcodec avformat avutil"

  3296. filter_audio_example_deps="avfilter avutil"

  3297. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3298. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3299. http_multiclient_example_deps="avformat avutil fork"

  3300. hw_decode_example_deps="avcodec avformat avutil"

  3301. metadata_example_deps="avformat avutil"

  3302. muxing_example_deps="avcodec avformat avutil swscale"

  3303. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3304. remuxing_example_deps="avcodec avformat avutil"

  3305. resampling_audio_example_deps="avutil swresample"

  3306. scaling_video_example_deps="avutil swscale"

  3307. transcode_aac_example_deps="avcodec avformat swresample"

  3308. transcoding_example_deps="avfilter avcodec avformat avutil"

  3309. 

  3310. # EXTRALIBS_LIST

  3311. cpu_init_extralibs="pthreads_extralibs"

  3312. cws2fws_extralibs="zlib_extralibs"

  3313. 

  3314. # libraries, in linking order

  3315. avcodec_deps="avutil"

  3316. avcodec_suggest="libm"

  3317. avcodec_select="null_bsf"

  3318. avdevice_deps="avformat avcodec avutil"

  3319. avdevice_suggest="libm"

  3320. avfilter_deps="avutil"

  3321. avfilter_suggest="libm"

  3322. avformat_deps="avcodec avutil"

  3323. avformat_suggest="libm network"

  3324. avresample_deps="avutil"

  3325. avresample_suggest="libm"

  3326. avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3327. postproc_deps="avutil gpl"

  3328. postproc_suggest="libm"

  3329. swresample_deps="avutil"

  3330. swresample_suggest="libm libsoxr"

  3331. swscale_deps="avutil"

  3332. swscale_suggest="libm"

  3333. 

  3334. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3335. avfilter_extralibs="pthreads_extralibs"

  3336. avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3337. 

  3338. # programs

  3339. ffmpeg_deps="avcodec avfilter avformat swresample"

  3340. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3341.                null_filter

  3342.                trim_filter"

  3343. ffmpeg_suggest="ole32 psapi shell32"

  3344. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3345. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3346. ffplay_suggest="shell32"

  3347. ffprobe_deps="avcodec avformat"

  3348. ffprobe_suggest="shell32"

  3349. ffserver_deps="avformat fork sarestart"

  3350. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3351. 

  3352. # documentation

  3353. podpages_deps="perl"

  3354. manpages_deps="perl pod2man"

  3355. htmlpages_deps="perl"

  3356. htmlpages_deps_any="makeinfo_html texi2html"

  3357. txtpages_deps="perl makeinfo"

  3358. doc_deps_any="manpages htmlpages podpages txtpages"

  3359. 

  3360. # default parameters

  3361. 

  3362. logfile="ffbuild/config.log"

  3363. 

  3364. # installation paths

  3365. prefix_default="/usr/local"

  3366. bindir_default='${prefix}/bin'

  3367. datadir_default='${prefix}/share/ffmpeg'

  3368. docdir_default='${prefix}/share/doc/ffmpeg'

  3369. incdir_default='${prefix}/include'

  3370. libdir_default='${prefix}/lib'

  3371. mandir_default='${prefix}/share/man'

  3372. 

  3373. # toolchain

  3374. ar_default="ar"

  3375. cc_default="gcc"

  3376. cxx_default="g++"

  3377. host_cc_default="gcc"

  3378. doxygen_default="doxygen"

  3379. install="install"

  3380. ln_s_default="ln -s -f"

  3381. nm_default="nm -g"

  3382. pkg_config_default=pkg-config

  3383. ranlib_default="ranlib"

  3384. strip_default="strip"

  3385. version_script='--version-script'

  3386. x86asmexe_default="nasm"

  3387. windres_default="windres"

  3388. nvcc_default="nvcc"

  3389. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3390. striptype="direct"

  3391. 

  3392. # OS

  3393. target_os_default=$(tolower $(uname -s))

  3394. host_os=$target_os_default

  3395. 

  3396. # machine

  3397. if test "$target_os_default" = aix; then

  3398.     arch_default=$(uname -p)

  3399.     strip_default="strip -X32_64"

  3400. else

  3401.     arch_default=$(uname -m)

  3402. fi

  3403. cpu="generic"

  3404. intrinsics="none"

  3405. 

  3406. # configurable options

  3407. enable $PROGRAM_LIST

  3408. enable $DOCUMENT_LIST

  3409. enable $EXAMPLE_LIST

  3410. enable $(filter_out avresample $LIBRARY_LIST)

  3411. enable stripping

  3412. 

  3413. enable asm

  3414. enable debug

  3415. enable doc

  3416. enable faan faandct faanidct

  3417. enable optimizations

  3418. enable runtime_cpudetect

  3419. enable safe_bitstream_reader

  3420. enable static

  3421. enable swscale_alpha

  3422. enable valgrind_backtrace

  3423. 

  3424. sws_max_filter_size_default=256

  3425. set_default sws_max_filter_size

  3426. 

  3427. # internal components are enabled by default

  3428. enable $EXTRALIBS_LIST

  3429. 

  3430. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3431. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3432. 

  3433. # build settings

  3434. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3435. LIBPREF="lib"

  3436. LIBSUF=".a"

  3437. FULLNAME='$(NAME)$(BUILDSUF)'

  3438. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3439. SLIBPREF="lib"

  3440. SLIBSUF=".so"

  3441. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3442. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3443. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3444. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3445. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3446. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3447. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3448. 

  3449. asflags_filter=echo

  3450. cflags_filter=echo

  3451. ldflags_filter=echo

  3452. 

  3453. AS_C='-c'

  3454. AS_O='-o $@'

  3455. CC_C='-c'

  3456. CC_E='-E -o $@'

  3457. CC_O='-o $@'

  3458. CXX_C='-c'

  3459. CXX_O='-o $@'

  3460. OBJCC_C='-c'

  3461. OBJCC_E='-E -o $@'

  3462. OBJCC_O='-o $@'

  3463. X86ASM_O='-o $@'

  3464. LD_O='-o $@'

  3465. LD_LIB='-l%'

  3466. LD_PATH='-L'

  3467. HOSTCC_C='-c'

  3468. HOSTCC_E='-E -o $@'

  3469. HOSTCC_O='-o $@'

  3470. HOSTLD_O='-o $@'

  3471. NVCC_C='-c'

  3472. NVCC_O='-o $@'

  3473. 

  3474. host_extralibs='-lm'

  3475. host_cflags_filter=echo

  3476. host_ldflags_filter=echo

  3477. 

  3478. target_path='$(CURDIR)'

  3479. 

  3480. # since the object filename is not given with the -MM flag, the compiler

  3481. # is only able to print the basename, and we must add the path ourselves

  3482. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3483. DEPFLAGS='-MM'

  3484. 

  3485. mkdir -p ffbuild

  3486. 

  3487. # find source path

  3488. if test -f configure; then

  3489.     source_path=.

  3490. else

  3491.     source_path=$(cd $(dirname "$0"); pwd)

  3492.     case "$source_path" in

  3493.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3494.     esac

  3495.     test -e "$source_path/config.h" &&

  3496.         die "Out of tree builds are impossible with config.h in source dir."

  3497. fi

  3498. 

  3499. for v in "$@"; do

  3500.     r=${v#*=}

  3501.     l=${v%"$r"}

  3502.     r=$(sh_quote "$r")

  3503.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3504. done

  3505. 

  3506. find_things(){

  3507.     thing=$1

  3508.     pattern=$2

  3509.     file=$source_path/$3

  3510.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3511. }

  3512. 

  3513. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3514. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3515. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3516. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3517. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3518. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3519. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3520. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3521. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3522. 

  3523. find_things_extern(){

  3524.     thing=$1

  3525.     pattern=$2

  3526.     file=$source_path/$3

  3527.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3528. }

  3529. 

  3530. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3531. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3532. 

  3533. AVCODEC_COMPONENTS_LIST="

  3534.     $BSF_LIST

  3535.     $DECODER_LIST

  3536.     $ENCODER_LIST

  3537.     $HWACCEL_LIST

  3538.     $PARSER_LIST

  3539. "

  3540. 

  3541. AVDEVICE_COMPONENTS_LIST="

  3542.     $INDEV_LIST

  3543.     $OUTDEV_LIST

  3544. "

  3545. 

  3546. AVFILTER_COMPONENTS_LIST="

  3547.     $FILTER_LIST

  3548. "

  3549. 

  3550. AVFORMAT_COMPONENTS_LIST="

  3551.     $DEMUXER_LIST

  3552.     $MUXER_LIST

  3553.     $PROTOCOL_LIST

  3554. "

  3555. 

  3556. ALL_COMPONENTS="

  3557.     $AVCODEC_COMPONENTS_LIST

  3558.     $AVDEVICE_COMPONENTS_LIST

  3559.     $AVFILTER_COMPONENTS_LIST

  3560.     $AVFORMAT_COMPONENTS_LIST

  3561. "

  3562. 

  3563. for n in $COMPONENT_LIST; do

  3564.     v=$(toupper ${n%s})_LIST

  3565.     eval enable \$$v

  3566.     eval ${n}_if_any="\$$v"

  3567. done

  3568. 

  3569. enable $ARCH_EXT_LIST

  3570. 

  3571. die_unknown(){

  3572.     echo "Unknown option \"$1\"."

  3573.     echo "See $0 --help for available options."

  3574.     exit 1

  3575. }

  3576. 

  3577. print_in_columns() {

  3578.     cols=$(expr $ncols / 24)

  3579.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3580. }

  3581. 

  3582. show_list() {

  3583.     suffix=_$1

  3584.     shift

  3585.     echo $* | sed s/$suffix//g | print_in_columns

  3586.     exit 0

  3587. }

  3588. 

  3589. rand_list(){

  3590.     IFS=', '

  3591.     set -- $*

  3592.     unset IFS

  3593.     for thing; do

  3594.         comp=${thing%:*}

  3595.         prob=${thing#$comp}

  3596.         prob=${prob#:}

  3597.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3598.         echo "prob ${prob:-0.5}"

  3599.         printf '%s\n' $comp

  3600.     done

  3601. }

  3602. 

  3603. do_random(){

  3604.     action=$1

  3605.     shift

  3606.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3607.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3608. }

  3609. 

  3610. for opt do

  3611.     optval="${opt#*=}"

  3612.     case "$opt" in

  3613.         --extra-ldflags=*)

  3614.             add_ldflags $optval

  3615.         ;;

  3616.         --extra-ldexeflags=*)

  3617.             add_ldexeflags $optval

  3618.         ;;

  3619.         --extra-ldlibflags=*)

  3620.             add_ldlibflags $optval

  3621.         ;;

  3622.         --extra-libs=*)

  3623.             add_extralibs $optval

  3624.         ;;

  3625.         --disable-devices)

  3626.             disable $INDEV_LIST $OUTDEV_LIST

  3627.         ;;

  3628.         --enable-debug=*)

  3629.             debuglevel="$optval"

  3630.         ;;

  3631.         --disable-programs)

  3632.             disable $PROGRAM_LIST

  3633.         ;;

  3634.         --disable-everything)

  3635.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3636.         ;;

  3637.         --disable-all)

  3638.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3639.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3640.             enable avutil

  3641.         ;;

  3642.         --enable-random|--disable-random)

  3643.             action=${opt%%-random}

  3644.             do_random ${action#--} $COMPONENT_LIST

  3645.         ;;

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

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

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

  3649.         ;;

  3650.         --enable-sdl)

  3651.             enable sdl2

  3652.         ;;

  3653.         --enable-*=*|--disable-*=*)

  3654.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3655.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3656.             eval list=\$$(toupper $thing)_LIST

  3657.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3658.             list=$(filter "$name" $list)

  3659.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3660.             $action $list

  3661.         ;;

  3662.         --enable-yasm|--disable-yasm)

  3663.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3664.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3665.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3666.         ;;

  3667.         --yasmexe=*)

  3668.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3669.                  "removed in the future. Use --x86asmexe instead."

  3670.             x86asmexe="$optval"

  3671.         ;;

  3672.         --enable-?*|--disable-?*)

  3673.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3674.             if is_in $option $COMPONENT_LIST; then

  3675.                 test $action = disable && action=unset

  3676.                 eval $action \$$(toupper ${option%s})_LIST

  3677.             elif is_in $option $CMDLINE_SELECT; then

  3678.                 $action $option

  3679.             else

  3680.                 die_unknown $opt

  3681.             fi

  3682.         ;;

  3683.         --list-*)

  3684.             NAME="${opt#--list-}"

  3685.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3686.             NAME=${NAME%s}

  3687.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3688.         ;;

  3689.         --help|-h) show_help

  3690.         ;;

  3691.         --quiet|-q) quiet=yes

  3692.         ;;

  3693.         --fatal-warnings) enable fatal_warnings

  3694.         ;;

  3695.         --libfuzzer=*)

  3696.             libfuzzer_path="$optval"

  3697.         ;;

  3698.         *)

  3699.             optname="${opt%%=*}"

  3700.             optname="${optname#--}"

  3701.             optname=$(echo "$optname" | sed 's/-/_/g')

  3702.             if is_in $optname $CMDLINE_SET; then

  3703.                 eval $optname='$optval'

  3704.             elif is_in $optname $CMDLINE_APPEND; then

  3705.                 append $optname "$optval"

  3706.             else

  3707.                 die_unknown $opt

  3708.             fi

  3709.         ;;

  3710.     esac

  3711. done

  3712. 

  3713. for e in $env; do

  3714.     eval "export $e"

  3715. done

  3716. 

  3717. if disabled autodetect; then

  3718. 

  3719.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3720.     # for the iconv from the libc.

  3721.     disabled iconv || enable libc_iconv

  3722. 

  3723.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3724.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3725. fi

  3726. # Mark specifically enabled, but normally autodetected libraries as requested.

  3727. for lib in $AUTODETECT_LIBS; do

  3728.     enabled $lib && request $lib

  3729. done

  3730. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3731. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3732. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3733. 

  3734. disabled logging && logfile=/dev/null

  3735. 

  3736. die_license_disabled() {

  3737.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3738. }

  3739. 

  3740. die_license_disabled_gpl() {

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

  3742. }

  3743. 

  3744. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3745. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3746. 

  3747. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3748. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3749. 

  3750. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3751. 

  3752. # Disable all the library-specific components if the library itself

  3753. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3754. 

  3755. disable_components(){

  3756.     disabled ${1} && disable $(

  3757.         eval components="\$$(toupper ${1})_COMPONENTS"

  3758.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3759.     )

  3760. }

  3761. 

  3762. map 'disable_components $v' $LIBRARY_LIST

  3763. 

  3764. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3765. set >> $logfile

  3766. 

  3767. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3768. 

  3769. enabled ossfuzz && {

  3770.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3771.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3772. }

  3773. 

  3774. case "$toolchain" in

  3775.     *-asan)

  3776.         cc_default="${toolchain%-asan}"

  3777.         add_cflags  -fsanitize=address

  3778.         add_ldflags -fsanitize=address

  3779.     ;;

  3780.     *-msan)

  3781.         cc_default="${toolchain%-msan}"

  3782.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3783.         add_ldflags -fsanitize=memory

  3784.     ;;

  3785.     *-tsan)

  3786.         cc_default="${toolchain%-tsan}"

  3787.         add_cflags  -fsanitize=thread -fPIE

  3788.         add_ldflags -fsanitize=thread -pie

  3789.         case "$toolchain" in

  3790.             gcc-tsan)

  3791.                 add_cflags  -fPIC

  3792.                 add_ldflags -fPIC

  3793.                 ;;

  3794.         esac

  3795.     ;;

  3796.     *-usan)

  3797.         cc_default="${toolchain%-usan}"

  3798.         add_cflags  -fsanitize=undefined

  3799.         add_ldflags -fsanitize=undefined

  3800.     ;;

  3801.     valgrind-*)

  3802.         target_exec_default="valgrind"

  3803.         case "$toolchain" in

  3804.             valgrind-massif)

  3805.                 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"

  3806.                 ;;

  3807.             valgrind-memcheck)

  3808.                 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"

  3809.                 ;;

  3810.         esac

  3811.     ;;

  3812.     msvc)

  3813.         # Check whether the current MSVC version needs the C99 converter.

  3814.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3815.         # support enough of C99 to build ffmpeg. Default to the new

  3816.         # behaviour if the regexp was unable to match anything, since this

  3817.         # successfully parses the version number of existing supported

  3818.         # versions that require the converter (MSVC 2010 and 2012).

  3819.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3820.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3821.             cc_default="cl"

  3822.             cxx_default="cl"

  3823.         else

  3824.             cc_default="c99wrap cl"

  3825.             cxx_default="c99wrap cl"

  3826.         fi

  3827.         ld_default="$source_path/compat/windows/mslink"

  3828.         nm_default="dumpbin -symbols"

  3829.         ar_default="lib"

  3830.         case "$arch" in

  3831.         arm*)

  3832.             as_default="armasm"

  3833.             ;;

  3834.         esac

  3835.         target_os_default="win32"

  3836.         # Use a relative path for TMPDIR. This makes sure all the

  3837.         # ffconf temp files are written with a relative path, avoiding

  3838.         # issues with msys/win32 path conversion for MSVC parameters

  3839.         # such as -Fo<file> or -out:<file>.

  3840.         TMPDIR=.

  3841.     ;;

  3842.     icl)

  3843.         cc_default="icl"

  3844.         ld_default="xilink"

  3845.         nm_default="dumpbin -symbols"

  3846.         ar_default="xilib"

  3847.         target_os_default="win32"

  3848.         TMPDIR=.

  3849.     ;;

  3850.     gcov)

  3851.         add_cflags  -fprofile-arcs -ftest-coverage

  3852.         add_ldflags -fprofile-arcs -ftest-coverage

  3853.     ;;

  3854.     llvm-cov)

  3855.         add_cflags -fprofile-arcs -ftest-coverage

  3856.         add_ldflags --coverage

  3857.     ;;

  3858.     hardened)

  3859.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3860.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3861.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3862.         add_cflags   -fPIE

  3863.         add_ldexeflags -fPIE -pie

  3864.     ;;

  3865.     ?*)

  3866.         die "Unknown toolchain $toolchain"

  3867.     ;;

  3868. esac

  3869. 

  3870. test -n "$cross_prefix" && enable cross_compile

  3871. 

  3872. if enabled cross_compile; then

  3873.     test -n "$arch" && test -n "$target_os" ||

  3874.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3875. fi

  3876. 

  3877. ar_default="${cross_prefix}${ar_default}"

  3878. cc_default="${cross_prefix}${cc_default}"

  3879. cxx_default="${cross_prefix}${cxx_default}"

  3880. nm_default="${cross_prefix}${nm_default}"

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

  3882. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3883.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3884. else

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

  3886. fi

  3887. strip_default="${cross_prefix}${strip_default}"

  3888. windres_default="${cross_prefix}${windres_default}"

  3889. 

  3890. sysinclude_default="${sysroot}/usr/include"

  3891. 

  3892. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3893.     target_exec target_os x86asmexe nvcc

  3894. enabled cross_compile || host_cc_default=$cc

  3895. set_default host_cc

  3896. 

  3897. pkg_config_fail_message=""

  3898. if ! $pkg_config --version >/dev/null 2>&1; then

  3899.     warn "$pkg_config not found, library detection may fail."

  3900.     pkg_config=false

  3901. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3902.     pkg_config_fail_message="

  3903. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3904. fi

  3905. 

  3906. if test $doxygen != $doxygen_default && \

  3907.   ! $doxygen --version >/dev/null 2>&1; then

  3908.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3909. fi

  3910. 

  3911. exesuf() {

  3912.     case $1 in

  3913.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3914.     esac

  3915. }

  3916. 

  3917. EXESUF=$(exesuf $target_os)

  3918. HOSTEXESUF=$(exesuf $host_os)

  3919. 

  3920. # set temporary file name

  3921. : ${TMPDIR:=$TEMPDIR}

  3922. : ${TMPDIR:=$TMP}

  3923. : ${TMPDIR:=/tmp}

  3924. 

  3925. if [ -n "$tempprefix" ] ; then

  3926.     mktemp(){

  3927.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3928.         echo "$tmpname"

  3929.         mkdir "$tmpname"

  3930.     }

  3931. elif ! check_cmd mktemp -u XXXXXX; then

  3932.     # simple replacement for missing mktemp

  3933.     # NOT SAFE FOR GENERAL USE

  3934.     mktemp(){

  3935.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3936.         echo "$tmpname"

  3937.         mkdir "$tmpname"

  3938.     }

  3939. fi

  3940. 

  3941. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3942.     die "Unable to create temporary directory in $TMPDIR."

  3943. 

  3944. tmpfile(){

  3945.     tmp="${FFTMPDIR}/test"$2

  3946.     (set -C; exec > $tmp) 2> /dev/null ||

  3947.         die "Unable to create temporary file in $FFTMPDIR."

  3948.     eval $1=$tmp

  3949. }

  3950. 

  3951. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3952. trap 'exit 2' INT

  3953. 

  3954. tmpfile TMPASM .asm

  3955. tmpfile TMPC   .c

  3956. tmpfile TMPCPP .cpp

  3957. tmpfile TMPE   $EXESUF

  3958. tmpfile TMPH   .h

  3959. tmpfile TMPM   .m

  3960. tmpfile TMPO   .o

  3961. tmpfile TMPS   .S

  3962. tmpfile TMPSH  .sh

  3963. tmpfile TMPV   .ver

  3964. 

  3965. unset -f mktemp

  3966. 

  3967. chmod +x $TMPE

  3968. 

  3969. # make sure we can execute files in $TMPDIR

  3970. cat > $TMPSH 2>> $logfile <<EOF

  3971. #! /bin/sh

  3972. EOF

  3973. chmod +x $TMPSH >> $logfile 2>&1

  3974. if ! $TMPSH >> $logfile 2>&1; then

  3975.     cat <<EOF

  3976. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3977. variable to another directory and make sure that it is not mounted noexec.

  3978. EOF

  3979.     die "Sanity test failed."

  3980. fi

  3981. 

  3982. armasm_flags(){

  3983.     for flag; do

  3984.         case $flag in

  3985.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3986.             # be passed to gas-preprocessor

  3987.             -M[TD]*)                                            ;;

  3988.             *)                  echo $flag                      ;;

  3989.         esac

  3990.    done

  3991. }

  3992. 

  3993. ccc_flags(){

  3994.     for flag; do

  3995.         case $flag in

  3996.             -std=c99)           echo -c99                       ;;

  3997.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3998.             -mieee)             echo -ieee                      ;;

  3999.             -O*|-fast)          echo $flag                      ;;

  4000.             -fno-math-errno)    echo -assume nomath_errno       ;;

  4001.             -g)                 echo -g3                        ;;

  4002.             -Wall)              echo -msg_enable level2         ;;

  4003.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  4004.             -Wl,*)              echo $flag                      ;;

  4005.             -f*|-W*)                                            ;;

  4006.             *)                  echo $flag                      ;;

  4007.         esac

  4008.    done

  4009. }

  4010. 

  4011. cparser_flags(){

  4012.     for flag; do

  4013.         case $flag in

  4014.             -Wno-switch)             echo -Wno-switch-enum ;;

  4015.             -Wno-format-zero-length) ;;

  4016.             -Wdisabled-optimization) ;;

  4017.             -Wno-pointer-sign)       echo -Wno-other ;;

  4018.             *)                       echo $flag ;;

  4019.         esac

  4020.     done

  4021. }

  4022. 

  4023. msvc_common_flags(){

  4024.     for flag; do

  4025.         case $flag in

  4026.             # In addition to specifying certain flags under the compiler

  4027.             # specific filters, they must be specified here as well or else the

  4028.             # generic catch all at the bottom will print the original flag.

  4029.             -Wall)                ;;

  4030.             -Wextra)              ;;

  4031.             -std=c99)             ;;

  4032.             # Common flags

  4033.             -fomit-frame-pointer) ;;

  4034.             -g)                   echo -Z7 ;;

  4035.             -fno-math-errno)      ;;

  4036.             -fno-common)          ;;

  4037.             -fno-signed-zeros)    ;;

  4038.             -fPIC)                ;;

  4039.             -mthumb)              ;;

  4040.             -march=*)             ;;

  4041.             -lz)                  echo zlib.lib ;;

  4042.             -lx264)               echo libx264.lib ;;

  4043.             -lstdc++)             ;;

  4044.             -l*)                  echo ${flag#-l}.lib ;;

  4045.             -LARGEADDRESSAWARE)   echo $flag ;;

  4046.             -L*)                  echo -libpath:${flag#-L} ;;

  4047.             *)                    echo $flag ;;

  4048.         esac

  4049.     done

  4050. }

  4051. 

  4052. msvc_flags(){

  4053.     msvc_common_flags "$@"

  4054.     for flag; do

  4055.         case $flag in

  4056.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4057.                                        -wd4554 ;;

  4058.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4059.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4060.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4061.                                        -wd4307 \

  4062.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4063.         esac

  4064.     done

  4065. }

  4066. 

  4067. icl_flags(){

  4068.     msvc_common_flags "$@"

  4069.     for flag; do

  4070.         case $flag in

  4071.             # Despite what Intel's documentation says -Wall, which is supported

  4072.             # on Windows, does enable remarks so disable them here.

  4073.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4074.             -std=c99)             echo -Qstd=c99 ;;

  4075.             -flto)                echo -ipo ;;

  4076.         esac

  4077.     done

  4078. }

  4079. 

  4080. icc_flags(){

  4081.     for flag; do

  4082.         case $flag in

  4083.             -flto)                echo -ipo ;;

  4084.             *)                    echo $flag ;;

  4085.         esac

  4086.     done

  4087. }

  4088. 

  4089. pgi_flags(){

  4090.     for flag; do

  4091.         case $flag in

  4092.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  4093.             -fomit-frame-pointer) echo -Mnoframe ;;

  4094.             -g)                   echo -gopt ;;

  4095.             *)                    echo $flag ;;

  4096.         esac

  4097.     done

  4098. }

  4099. 

  4100. suncc_flags(){

  4101.     for flag; do

  4102.         case $flag in

  4103.             -march=*|-mcpu=*)

  4104.                 case "${flag#*=}" in

  4105.                     native)                   echo -xtarget=native       ;;

  4106.                     v9|niagara)               echo -xarch=sparc          ;;

  4107.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4108.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4109.                     i586|pentium)             echo -xchip=pentium        ;;

  4110.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4111.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4112.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4113.                     pentium4*)          echo -xtarget=pentium4           ;;

  4114.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4115.                     *-sse3)             echo -xarch=sse3                 ;;

  4116.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4117.                     bonnell)                   echo -xarch=ssse3         ;;

  4118.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4119.                     westmere)                  echo -xtarget=westmere    ;;

  4120.                     silvermont)                echo -xarch=sse4_2        ;;

  4121.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4122.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4123.                                                echo -xarch=avx           ;;

  4124.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4125.                     btver1)                    echo -xarch=amdsse4a      ;;

  4126.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4127.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4128.                     k8|opteron|athlon64|athlon-fx)

  4129.                                                echo -xarch=sse2a         ;;

  4130.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4131.                 esac

  4132.                 ;;

  4133.             -std=c99)             echo -xc99              ;;

  4134.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4135.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4136.             -W*,*)                echo $flag              ;;

  4137.             -f*-*|-W*|-mimpure-text)                      ;;

  4138.             -shared)              echo -G                 ;;

  4139.             *)                    echo $flag              ;;

  4140.         esac

  4141.     done

  4142. }

  4143. 

  4144. tms470_flags(){

  4145.     for flag; do

  4146.         case $flag in

  4147.             -march=*|-mcpu=*)

  4148.                 case "${flag#*=}" in

  4149.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  4150.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  4151.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  4152.                     armv6*|arm11*)          echo -mv=6   ;;

  4153.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  4154.                                             echo -mv=5e  ;;

  4155.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  4156.                 esac

  4157.                 ;;

  4158.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  4159.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  4160.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  4161.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  4162.             -msoft-float)   echo --float_support=vfplib       ;;

  4163.             -O[0-3]|-mf=*)  echo $flag                        ;;

  4164.             -g)             echo -g -mn                       ;;

  4165.             -pds=*)         echo $flag                        ;;

  4166.             -D*|-I*)        echo $flag                        ;;

  4167.             --gcc|--abi=*)  echo $flag                        ;;

  4168.             -me)            echo $flag                        ;;

  4169.         esac

  4170.     done

  4171. }

  4172. 

  4173. probe_cc(){

  4174.     pfx=$1

  4175.     _cc=$2

  4176.     first=$3

  4177. 

  4178.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4179.     unset _ld_o _ldflags _ld_lib _ld_path

  4180.     unset _depflags _DEPCMD _DEPFLAGS

  4181.     _flags_filter=echo

  4182. 

  4183.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4184.         true # no-op to avoid reading stdin in following checks

  4185.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4186.         _type=llvm_gcc

  4187.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4188.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4189.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4190.         _cflags_speed='-O3'

  4191.         _cflags_size='-Os'

  4192.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4193.         _type=gcc

  4194.         gcc_version=$($_cc --version | head -n1)

  4195.         gcc_basever=$($_cc -dumpversion)

  4196.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4197.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4198.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4199.         case $gcc_basever in

  4200.             2) ;;

  4201.             2.*) ;;

  4202.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4203.         esac

  4204.         if [ "$first" = true ]; then

  4205.             case $gcc_basever in

  4206.                 4.2*)

  4207.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4208.             esac

  4209.         fi

  4210.         _cflags_speed='-O3'

  4211.         _cflags_size='-Os'

  4212.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4213.         _type=icc

  4214.         _ident=$($_cc --version | head -n1)

  4215.         _depflags='-MMD'

  4216.         _cflags_speed='-O3'

  4217.         _cflags_size='-Os'

  4218.         _cflags_noopt='-O1'

  4219.         _flags_filter=icc_flags

  4220.     elif $_cc -v 2>&1 | grep -q xlc; then

  4221.         _type=xlc

  4222.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4223.         _cflags_speed='-O5'

  4224.         _cflags_size='-O5 -qcompact'

  4225.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4226.         _type=ccc

  4227.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4228.         _DEPFLAGS='-M'

  4229.         _cflags_speed='-fast'

  4230.         _cflags_size='-O1'

  4231.         _flags_filter=ccc_flags

  4232.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4233.         test -d "$sysroot" || die "No valid sysroot specified."

  4234.         _type=armcc

  4235.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4236.         armcc_conf="$PWD/armcc.conf"

  4237.         $_cc --arm_linux_configure                 \

  4238.              --arm_linux_config_file="$armcc_conf" \

  4239.              --configure_sysroot="$sysroot"        \

  4240.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4241.              die "Error creating armcc configuration file."

  4242.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4243.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4244.         as_default="${cross_prefix}gcc"

  4245.         _depflags='-MMD'

  4246.         _cflags_speed='-O3'

  4247.         _cflags_size='-Os'

  4248.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4249.         _type=tms470

  4250.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4251.         _flags='--gcc --abi=eabi -me'

  4252.         _cc_e='-ppl -fe=$@'

  4253.         _cc_o='-fe=$@'

  4254.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4255.         _cflags_speed='-O3 -mf=5'

  4256.         _cflags_size='-O3 -mf=2'

  4257.         _flags_filter=tms470_flags

  4258.     elif $_cc -v 2>&1 | grep -q clang; then

  4259.         _type=clang

  4260.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4261.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4262.         _cflags_speed='-O3'

  4263.         _cflags_size='-Oz'

  4264.     elif $_cc -V 2>&1 | grep -q Sun; then

  4265.         _type=suncc

  4266.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4267.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4268.         _DEPFLAGS='-xM1 -xc99'

  4269.         _ldflags='-std=c99'

  4270.         _cflags_speed='-O5'

  4271.         _cflags_size='-O5 -xspace'

  4272.         _flags_filter=suncc_flags

  4273.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4274.         _type=pathscale

  4275.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4276.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4277.         _cflags_speed='-O2'

  4278.         _cflags_size='-Os'

  4279.         _flags_filter='filter_out -Wdisabled-optimization'

  4280.     elif $_cc -v 2>&1 | grep -q Open64; then

  4281.         _type=open64

  4282.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4283.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4284.         _cflags_speed='-O2'

  4285.         _cflags_size='-Os'

  4286.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4287.     elif $_cc -V 2>&1 | grep -q Portland; then

  4288.         _type=pgi

  4289.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4290.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4291.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4292.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4293.         _cflags_noopt="-O"

  4294.         _flags_filter=pgi_flags

  4295.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4296.         _type=armasm

  4297.         _ident=$($_cc | head -n1)

  4298.         # 4509: "This form of conditional instruction is deprecated"

  4299.         _flags="-nologo -ignore 4509"

  4300.         _flags_filter=armasm_flags

  4301.     elif $_cc 2>&1 | grep -q Intel; then

  4302.         _type=icl

  4303.         _ident=$($_cc 2>&1 | head -n1)

  4304.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4305.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4306.         # versions (tested) as well.

  4307.         _cflags_speed="-O2"

  4308.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4309.         if $_cc 2>&1 | grep -q Linker; then

  4310.             _ld_o='-out:$@'

  4311.         else

  4312.             _ld_o='-Fe$@'

  4313.         fi

  4314.         _cc_o='-Fo$@'

  4315.         _cc_e='-P'

  4316.         _flags_filter=icl_flags

  4317.         _ld_lib='lib%.a'

  4318.         _ld_path='-libpath:'

  4319.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4320.         _flags='-nologo -Qdiag-error:4044,10157'

  4321.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4322.         # with MSVC which enables it by default.

  4323.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4324.         disable stripping

  4325.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4326.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4327.         # the -? parameter gives the help output which contains an identifyable

  4328.         # string, while it gives an error in other modes.

  4329.         _type=lld-link

  4330.         # The link.exe mode doesn't have a switch for getting the version,

  4331.         # but we can force it back to gnu mode and get the version from there.

  4332.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4333.         _ld_o='-out:$@'

  4334.         _flags_filter=msvc_flags

  4335.         _ld_lib='lib%.a'

  4336.         _ld_path='-libpath:'

  4337.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4338.         _type=msvc

  4339.         _ident=$($_cc 2>&1 | head -n1)

  4340.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4341.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4342.         _cflags_speed="-O2"

  4343.         _cflags_size="-O1"

  4344.         _cflags_noopt="-O1"

  4345.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4346.             _ld_o='-out:$@'

  4347.         else

  4348.             _ld_o='-Fe$@'

  4349.         fi

  4350.         _cc_o='-Fo$@'

  4351.         _cc_e='-P -Fi$@'

  4352.         _flags_filter=msvc_flags

  4353.         _ld_lib='lib%.a'

  4354.         _ld_path='-libpath:'

  4355.         _flags='-nologo'

  4356.         disable stripping

  4357.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4358.         _type=cparser

  4359.         _ident=$($_cc --version | head -n1)

  4360.         _depflags='-MMD'

  4361.         _cflags_speed='-O4'

  4362.         _cflags_size='-O2'

  4363.         _flags_filter=cparser_flags

  4364.     fi

  4365. 

  4366.     eval ${pfx}_type=\$_type

  4367.     eval ${pfx}_ident=\$_ident

  4368. }

  4369. 

  4370. set_ccvars(){

  4371.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4372.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4373.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4374. 

  4375.     if [ -n "$_depflags" ]; then

  4376.         eval ${1}_DEPFLAGS=\$_depflags

  4377.     else

  4378.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4379.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4380.         eval DEP${1}FLAGS=\$_flags

  4381.     fi

  4382. }

  4383. 

  4384. probe_cc cc "$cc" "true"

  4385. cflags_filter=$_flags_filter

  4386. cflags_speed=$_cflags_speed

  4387. cflags_size=$_cflags_size

  4388. cflags_noopt=$_cflags_noopt

  4389. add_cflags $_flags $_cflags

  4390. cc_ldflags=$_ldflags

  4391. set_ccvars CC

  4392. set_ccvars CXX

  4393. 

  4394. probe_cc hostcc "$host_cc"

  4395. host_cflags_filter=$_flags_filter

  4396. host_cflags_speed=$_cflags_speed

  4397. add_host_cflags  $_flags $_cflags

  4398. set_ccvars HOSTCC

  4399. 

  4400. test -n "$cc_type" && enable $cc_type ||

  4401.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4402. 

  4403. : ${as_default:=$cc}

  4404. : ${objcc_default:=$cc}

  4405. : ${dep_cc_default:=$cc}

  4406. : ${ld_default:=$cc}

  4407. : ${host_ld_default:=$host_cc}

  4408. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4409. 

  4410. probe_cc as "$as"

  4411. asflags_filter=$_flags_filter

  4412. add_asflags $_flags $_cflags

  4413. set_ccvars AS

  4414. 

  4415. probe_cc objcc "$objcc"

  4416. objcflags_filter=$_flags_filter

  4417. add_objcflags $_flags $_cflags

  4418. set_ccvars OBJC

  4419. 

  4420. probe_cc ld "$ld"

  4421. ldflags_filter=$_flags_filter

  4422. add_ldflags $_flags $_ldflags

  4423. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4424. LD_O=${_ld_o-$LD_O}

  4425. LD_LIB=${_ld_lib-$LD_LIB}

  4426. LD_PATH=${_ld_path-$LD_PATH}

  4427. 

  4428. probe_cc hostld "$host_ld"

  4429. host_ldflags_filter=$_flags_filter

  4430. add_host_ldflags $_flags $_ldflags

  4431. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4432. 

  4433. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4434.     probe_cc depcc "$dep_cc"

  4435.     CCDEP=${_DEPCMD:-$DEPCMD}

  4436.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4437.     DEPCCFLAGS=$_flags

  4438. fi

  4439. 

  4440. if $ar 2>&1 | grep -q Microsoft; then

  4441.     arflags="-nologo"

  4442.     ar_o='-out:$@'

  4443. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4444.     arflags="rq"

  4445.     ar_o='$@'

  4446. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4447.     arflags='-Xany -r -c'

  4448.     ar_o='$@'

  4449. elif $ar 2>&1 | grep -q "\[D\] "; then

  4450.     arflags="rcD"

  4451.     ar_o='$@'

  4452. else

  4453.     arflags="rc"

  4454.     ar_o='$@'

  4455. fi

  4456. 

  4457. add_cflags $extra_cflags

  4458. add_cxxflags $extra_cxxflags

  4459. add_objcflags $extra_objcflags

  4460. add_asflags $extra_cflags

  4461. 

  4462. if test -n "$sysroot"; then

  4463.     case "$cc_type" in

  4464.         gcc|llvm_gcc|clang)

  4465.             add_cppflags --sysroot="$sysroot"

  4466.             add_ldflags --sysroot="$sysroot"

  4467. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4468.             add_cppflags -isysroot "$sysroot"

  4469.             add_ldflags -isysroot "$sysroot"

  4470.         ;;

  4471.         tms470)

  4472.             add_cppflags -I"$sysinclude"

  4473.             add_ldflags  --sysroot="$sysroot"

  4474.         ;;

  4475.     esac

  4476. fi

  4477. 

  4478. if test "$cpu" = host; then

  4479.     enabled cross_compile &&

  4480.         die "--cpu=host makes no sense when cross-compiling."

  4481. 

  4482.     case "$cc_type" in

  4483.         gcc|llvm_gcc)

  4484.             check_native(){

  4485.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4486.                 sed -n "/cc1.*$1=/{

  4487.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4488.                             p

  4489.                             q

  4490.                         }" $TMPE

  4491.             }

  4492.             cpu=$(check_native -march || check_native -mcpu)

  4493.         ;;

  4494.         clang)

  4495.             check_native(){

  4496.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4497.                 sed -n "/cc1.*-target-cpu /{

  4498.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4499.                             p

  4500.                             q

  4501.                         }" $TMPE

  4502.             }

  4503.             cpu=$(check_native -march)

  4504.         ;;

  4505.     esac

  4506. 

  4507.     test "${cpu:-host}" = host &&

  4508.         die "--cpu=host not supported with compiler $cc"

  4509. fi

  4510. 

  4511. # Deal with common $arch aliases

  4512. case "$arch" in

  4513.     aarch64|arm64)

  4514.         arch="aarch64"

  4515.     ;;

  4516.     arm*|iPad*|iPhone*)

  4517.         arch="arm"

  4518.     ;;

  4519.     mips*|IP*)

  4520.         case "$arch" in

  4521.         *el)

  4522.             add_cppflags -EL

  4523.             add_ldflags -EL

  4524.         ;;

  4525.         *eb)

  4526.             add_cppflags -EB

  4527.             add_ldflags -EB

  4528.         ;;

  4529.         esac

  4530.         arch="mips"

  4531.     ;;

  4532.     parisc*|hppa*)

  4533.         arch="parisc"

  4534.     ;;

  4535.     "Power Macintosh"|ppc*|powerpc*)

  4536.         arch="ppc"

  4537.     ;;

  4538.     s390|s390x)

  4539.         arch="s390"

  4540.     ;;

  4541.     sh4|sh)

  4542.         arch="sh4"

  4543.     ;;

  4544.     sun4*|sparc*)

  4545.         arch="sparc"

  4546.     ;;

  4547.     tilegx|tile-gx)

  4548.         arch="tilegx"

  4549.     ;;

  4550.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4551.         arch="x86"

  4552.     ;;

  4553. esac

  4554. 

  4555. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4556. enable $arch

  4557. 

  4558. # Add processor-specific flags

  4559. if enabled aarch64; then

  4560. 

  4561.     case $cpu in

  4562.         armv*)

  4563.             cpuflags="-march=$cpu"

  4564.         ;;

  4565.         *)

  4566.             cpuflags="-mcpu=$cpu"

  4567.         ;;

  4568.     esac

  4569. 

  4570. elif enabled alpha; then

  4571. 

  4572.     cpuflags="-mcpu=$cpu"

  4573. 

  4574. elif enabled arm; then

  4575. 

  4576.     check_arm_arch() {

  4577.         check_cpp_condition stddef.h \

  4578.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4579.             $cpuflags

  4580.     }

  4581. 

  4582.     probe_arm_arch() {

  4583.         if   check_arm_arch 4;        then echo armv4

  4584.         elif check_arm_arch 4T;       then echo armv4t

  4585.         elif check_arm_arch 5;        then echo armv5

  4586.         elif check_arm_arch 5E;       then echo armv5e

  4587.         elif check_arm_arch 5T;       then echo armv5t

  4588.         elif check_arm_arch 5TE;      then echo armv5te

  4589.         elif check_arm_arch 5TEJ;     then echo armv5te

  4590.         elif check_arm_arch 6;        then echo armv6

  4591.         elif check_arm_arch 6J;       then echo armv6j

  4592.         elif check_arm_arch 6K;       then echo armv6k

  4593.         elif check_arm_arch 6Z;       then echo armv6z

  4594.         elif check_arm_arch 6ZK;      then echo armv6zk

  4595.         elif check_arm_arch 6T2;      then echo armv6t2

  4596.         elif check_arm_arch 7;        then echo armv7

  4597.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4598.         elif check_arm_arch 7S;       then echo armv7-a

  4599.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4600.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4601.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4602.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4603.         fi

  4604.     }

  4605. 

  4606.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4607. 

  4608.     case $cpu in

  4609.         armv*)

  4610.             cpuflags="-march=$cpu"

  4611.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4612.         ;;

  4613.         *)

  4614.             cpuflags="-mcpu=$cpu"

  4615.             case $cpu in

  4616.                 cortex-a*)                               subarch=armv7a  ;;

  4617.                 cortex-r*)                               subarch=armv7r  ;;

  4618.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4619.                 arm11*)                                  subarch=armv6   ;;

  4620.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4621.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4622.                 *)                             subarch=$(probe_arm_arch) ;;

  4623.             esac

  4624.         ;;

  4625.     esac

  4626. 

  4627.     case "$subarch" in

  4628.         armv5t*)    enable fast_clz                ;;

  4629.         armv[6-8]*)

  4630.             enable fast_clz

  4631.             disabled fast_unaligned || enable fast_unaligned

  4632.             ;;

  4633.     esac

  4634. 

  4635. elif enabled avr32; then

  4636. 

  4637.     case $cpu in

  4638.         ap7[02]0[0-2])

  4639.             subarch="avr32_ap"

  4640.             cpuflags="-mpart=$cpu"

  4641.         ;;

  4642.         ap)

  4643.             subarch="avr32_ap"

  4644.             cpuflags="-march=$cpu"

  4645.         ;;

  4646.         uc3[ab]*)

  4647.             subarch="avr32_uc"

  4648.             cpuflags="-mcpu=$cpu"

  4649.         ;;

  4650.         uc)

  4651.             subarch="avr32_uc"

  4652.             cpuflags="-march=$cpu"

  4653.         ;;

  4654.     esac

  4655. 

  4656. elif enabled bfin; then

  4657. 

  4658.     cpuflags="-mcpu=$cpu"

  4659. 

  4660. elif enabled mips; then

  4661. 

  4662.     cpuflags="-march=$cpu"

  4663. 

  4664.     if [ "$cpu" != "generic" ]; then

  4665.         disable mips32r2

  4666.         disable mips32r5

  4667.         disable mips64r2

  4668.         disable mips32r6

  4669.         disable mips64r6

  4670.         disable loongson2

  4671.         disable loongson3

  4672. 

  4673.         case $cpu in

  4674.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4675.                 enable mips32r2

  4676.                 disable msa

  4677.             ;;

  4678.             p5600|i6400|p6600)

  4679.                 disable mipsdsp

  4680.                 disable mipsdspr2

  4681.             ;;

  4682.             loongson*)

  4683.                 enable loongson2

  4684.                 enable loongson3

  4685.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4686.                 enable simd_align_16

  4687.                 enable fast_64bit

  4688.                 enable fast_clz

  4689.                 enable fast_cmov

  4690.                 enable fast_unaligned

  4691.                 disable aligned_stack

  4692.                 disable mipsfpu

  4693.                 disable mipsdsp

  4694.                 disable mipsdspr2

  4695.                 case $cpu in

  4696.                     loongson3*)

  4697.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4698.                     ;;

  4699.                     loongson2e)

  4700.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4701.                     ;;

  4702.                     loongson2f)

  4703.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4704.                     ;;

  4705.                 esac

  4706.             ;;

  4707.             *)

  4708.                 # Unknown CPU. Disable everything.

  4709.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4710.                 disable mipsfpu

  4711.                 disable mipsdsp

  4712.                 disable mipsdspr2

  4713.                 disable msa

  4714.                 disable mmi

  4715.             ;;

  4716.         esac

  4717. 

  4718.         case $cpu in

  4719.             24kc)

  4720.                 disable mipsfpu

  4721.                 disable mipsdsp

  4722.                 disable mipsdspr2

  4723.             ;;

  4724.             24kf*)

  4725.                 disable mipsdsp

  4726.                 disable mipsdspr2

  4727.             ;;

  4728.             24kec|34kc|1004kc)

  4729.                 disable mipsfpu

  4730.                 disable mipsdspr2

  4731.             ;;

  4732.             24kef*|34kf*|1004kf*)

  4733.                 disable mipsdspr2

  4734.             ;;

  4735.             74kc)

  4736.                 disable mipsfpu

  4737.             ;;

  4738.             p5600)

  4739.                 enable mips32r5

  4740.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4741.             ;;

  4742.             i6400)

  4743.                 enable mips64r6

  4744.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4745.             ;;

  4746.             p6600)

  4747.                 enable mips64r6

  4748.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4749.             ;;

  4750.         esac

  4751.     else

  4752.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4753.         warn 'generic cpu selected'

  4754.     fi

  4755. 

  4756. elif enabled ppc; then

  4757. 

  4758.     disable ldbrx

  4759. 

  4760.     case $(tolower $cpu) in

  4761.         601|ppc601|powerpc601)

  4762.             cpuflags="-mcpu=601"

  4763.             disable altivec

  4764.         ;;

  4765.         603*|ppc603*|powerpc603*)

  4766.             cpuflags="-mcpu=603"

  4767.             disable altivec

  4768.         ;;

  4769.         604*|ppc604*|powerpc604*)

  4770.             cpuflags="-mcpu=604"

  4771.             disable altivec

  4772.         ;;

  4773.         g3|75*|ppc75*|powerpc75*)

  4774.             cpuflags="-mcpu=750"

  4775.             disable altivec

  4776.         ;;

  4777.         g4|745*|ppc745*|powerpc745*)

  4778.             cpuflags="-mcpu=7450"

  4779.             disable vsx

  4780.         ;;

  4781.         74*|ppc74*|powerpc74*)

  4782.             cpuflags="-mcpu=7400"

  4783.             disable vsx

  4784.         ;;

  4785.         g5|970|ppc970|powerpc970)

  4786.             cpuflags="-mcpu=970"

  4787.             disable vsx

  4788.         ;;

  4789.         power[3-6]*)

  4790.             cpuflags="-mcpu=$cpu"

  4791.             disable vsx

  4792.         ;;

  4793.         power[7-8]*)

  4794.             cpuflags="-mcpu=$cpu"

  4795.         ;;

  4796.         cell)

  4797.             cpuflags="-mcpu=cell"

  4798.             enable ldbrx

  4799.             disable vsx

  4800.         ;;

  4801.         e500mc)

  4802.             cpuflags="-mcpu=e500mc"

  4803.             disable altivec

  4804.         ;;

  4805.         e500v2)

  4806.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4807.             disable altivec

  4808.             disable dcbzl

  4809.         ;;

  4810.         e500)

  4811.             cpuflags="-mcpu=8540 -mhard-float"

  4812.             disable altivec

  4813.             disable dcbzl

  4814.         ;;

  4815.     esac

  4816. 

  4817. elif enabled sparc; then

  4818. 

  4819.     case $cpu in

  4820.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4821.             cpuflags="-mcpu=$cpu"

  4822.         ;;

  4823.         ultrasparc*|niagara[234])

  4824.             cpuflags="-mcpu=$cpu"

  4825.         ;;

  4826.     esac

  4827. 

  4828. elif enabled x86; then

  4829. 

  4830.     case $cpu in

  4831.         i[345]86|pentium)

  4832.             cpuflags="-march=$cpu"

  4833.             disable i686

  4834.             disable mmx

  4835.         ;;

  4836.         # targets that do NOT support nopl and conditional mov (cmov)

  4837.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4838.             cpuflags="-march=$cpu"

  4839.             disable i686

  4840.         ;;

  4841.         # targets that do support nopl and conditional mov (cmov)

  4842.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4843.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4844.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4845.             cpuflags="-march=$cpu"

  4846.             enable i686

  4847.             enable fast_cmov

  4848.         ;;

  4849.         # targets that do support conditional mov but on which it's slow

  4850.         pentium4|pentium4m|prescott|nocona)

  4851.             cpuflags="-march=$cpu"

  4852.             enable i686

  4853.             disable fast_cmov

  4854.         ;;

  4855.     esac

  4856. 

  4857. fi

  4858. 

  4859. if [ "$cpu" != generic ]; then

  4860.     add_cflags  $cpuflags

  4861.     add_asflags $cpuflags

  4862.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4863. fi

  4864. 

  4865. # compiler sanity check

  4866. check_exec <<EOF

  4867. int main(void){ return 0; }

  4868. EOF

  4869. if test "$?" != 0; then

  4870.     echo "$cc is unable to create an executable file."

  4871.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4872.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4873.         echo "Only do this if you know what cross compiling means."

  4874.     fi

  4875.     die "C compiler test failed."

  4876. fi

  4877. 

  4878. add_cppflags -D_ISOC99_SOURCE

  4879. add_cxxflags -D__STDC_CONSTANT_MACROS

  4880. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4881. 

  4882. # some compilers silently accept -std=c11, so we also need to check that the

  4883. # version macro is defined properly

  4884. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4885.     add_cflags -std=c11 ||

  4886.     check_cflags -std=c99

  4887. 

  4888. check_cppflags -D_FILE_OFFSET_BITS=64

  4889. check_cppflags -D_LARGEFILE_SOURCE

  4890. 

  4891. add_host_cppflags -D_ISOC99_SOURCE

  4892. check_host_cflags -std=c99

  4893. check_host_cflags -Wall

  4894. check_host_cflags $host_cflags_speed

  4895. 

  4896. check_64bit(){

  4897.     arch32=$1

  4898.     arch64=$2

  4899.     expr=$3

  4900.     check_code cc "" "int test[2*($expr) - 1]" &&

  4901.         subarch=$arch64 || subarch=$arch32

  4902. }

  4903. 

  4904. case "$arch" in

  4905.     aarch64|alpha|ia64)

  4906.         spic=$shared

  4907.     ;;

  4908.     mips)

  4909.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4910.         spic=$shared

  4911.     ;;

  4912.     parisc)

  4913.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4914.         spic=$shared

  4915.     ;;

  4916.     ppc)

  4917.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4918.         spic=$shared

  4919.     ;;

  4920.     s390)

  4921.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4922.         spic=$shared

  4923.     ;;

  4924.     sparc)

  4925.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4926.         spic=$shared

  4927.     ;;

  4928.     x86)

  4929.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4930.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4931.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4932.             subarch=x86_64

  4933.         if test "$subarch" = "x86_64"; then

  4934.             spic=$shared

  4935.         fi

  4936.     ;;

  4937.     ppc)

  4938.         check_cc <<EOF && subarch="ppc64"

  4939.         int test[(int)sizeof(char*) - 7];

  4940. EOF

  4941.     ;;

  4942. esac

  4943. 

  4944. enable $subarch

  4945. enabled spic && enable_weak pic

  4946. 

  4947. enabled x86_64 && objformat=elf64 || objformat="elf32"

  4948. 

  4949. # OS specific

  4950. case $target_os in

  4951.     aix)

  4952.         SHFLAGS=-shared

  4953.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4954.         enabled shared && add_ldflags -Wl,-brtl

  4955.         ;;

  4956.     android)

  4957.         disable symver

  4958.         enable section_data_rel_ro

  4959.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4960.         SLIB_INSTALL_LINKS=

  4961.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4962.         ;;

  4963.     haiku)

  4964.         prefix_default="/boot/common"

  4965.         network_extralibs="-lnetwork"

  4966.         host_extralibs=

  4967.         ;;

  4968.     sunos)

  4969.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4970.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4971.         network_extralibs="-lsocket -lnsl"

  4972.         add_cppflags -D__EXTENSIONS__

  4973.         # When using suncc to build, the Solaris linker will mark

  4974.         # an executable with each instruction set encountered by

  4975.         # the Solaris assembler.  As our libraries contain their own

  4976.         # guards for processor-specific code, instead suppress

  4977.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4978.         enabled_all suncc x86 &&

  4979.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4980.             add_ldflags -Wl,-M,mapfile

  4981.         nm_default='nm -P -g'

  4982.         version_script='-M'

  4983.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4984.         ;;

  4985.     netbsd)

  4986.         disable symver

  4987.         oss_indev_extralibs="-lossaudio"

  4988.         oss_outdev_extralibs="-lossaudio"

  4989.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4990.         ;;

  4991.     openbsd|bitrig)

  4992.         disable symver

  4993.         SHFLAGS='-shared'

  4994.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4995.         SLIB_INSTALL_LINKS=

  4996.         oss_indev_extralibs="-lossaudio"

  4997.         oss_outdev_extralibs="-lossaudio"

  4998.         ;;

  4999.     dragonfly)

  5000.         disable symver

  5001.         ;;

  5002.     freebsd)

  5003.         ;;

  5004.     bsd/os)

  5005.         add_extralibs -lpoll -lgnugetopt

  5006.         strip="strip -d"

  5007.         ;;

  5008.     darwin)

  5009.         enabled ppc && add_asflags -force_cpusubtype_ALL

  5010.         install_name_dir_default='$(SHLIBDIR)'

  5011.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  5012.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  5013.         strip="${strip} -x"

  5014.         add_ldflags -Wl,-dynamic,-search_paths_first

  5015.         check_cflags -Werror=partial-availability

  5016.         SLIBSUF=".dylib"

  5017.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  5018.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  5019.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  5020.         enabled_any pic shared x86_64 ||

  5021.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  5022.         check_header dispatch/dispatch.h &&

  5023.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  5024.         version_script='-exported_symbols_list'

  5025.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  5026.         ;;

  5027.     msys*)

  5028.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  5029.         ;;

  5030.     mingw32*|mingw64*)

  5031.         if test $target_os = "mingw32ce"; then

  5032.             disable network

  5033.         else

  5034.             target_os=mingw32

  5035.         fi

  5036.         LIBTARGET=i386

  5037.         if enabled x86_64; then

  5038.             LIBTARGET="i386:x86-64"

  5039.         elif enabled arm; then

  5040.             LIBTARGET=arm-wince

  5041.         fi

  5042.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5043.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  5044.         shlibdir_default="$bindir_default"

  5045.         SLIBPREF=""

  5046.         SLIBSUF=".dll"

  5047.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5048.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5049.         dlltool="${cross_prefix}dlltool"

  5050.         if check_cmd lib.exe -list; then

  5051.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5052.             if enabled x86_64; then

  5053.                 LIBTARGET=x64

  5054.             fi

  5055.         elif check_cmd $dlltool --version; then

  5056.             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)'

  5057.         fi

  5058.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5059.         SLIB_INSTALL_LINKS=

  5060.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5061.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5062.         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'

  5063.         enabled x86_64 && objformat="win64" || objformat="win32"

  5064.         ranlib=:

  5065.         enable dos_paths

  5066.         check_ldflags -Wl,--nxcompat,--dynamicbase

  5067.         # Lets work around some stupidity in binutils.

  5068.         # ld will strip relocations from executables even though we need them

  5069.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  5070.         # however ld then forgets what the entry point should be (oops) so we

  5071.         # have to manually (re)set it.

  5072.         if enabled x86_32; then

  5073.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  5074.         elif enabled x86_64; then

  5075.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5076.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5077.             # Set image base >4GB for extra entropy with HEASLR

  5078.             add_ldexeflags -Wl,--image-base,0x140000000

  5079.             append SHFLAGS -Wl,--image-base,0x180000000

  5080.         fi

  5081.         ;;

  5082.     win32|win64)

  5083.         disable symver

  5084.         if enabled shared; then

  5085.             # Link to the import library instead of the normal static library

  5086.             # for shared libs.

  5087.             LD_LIB='%.lib'

  5088.             # Cannot build both shared and static libs with MSVC or icl.

  5089.             disable static

  5090.         fi

  5091.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5092.         shlibdir_default="$bindir_default"

  5093.         SLIBPREF=""

  5094.         SLIBSUF=".dll"

  5095.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5096.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5097.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5098.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5099.         SLIB_INSTALL_LINKS=

  5100.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5101.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5102.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5103.         enabled x86_64 && objformat="win64" || objformat="win32"

  5104.         ranlib=:

  5105.         enable dos_paths

  5106.         ;;

  5107.     cygwin*)

  5108.         target_os=cygwin

  5109.         shlibdir_default="$bindir_default"

  5110.         SLIBPREF="cyg"

  5111.         SLIBSUF=".dll"

  5112.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5113.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5114.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5115.         SLIB_INSTALL_LINKS=

  5116.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5117.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5118.         enabled x86_64 && objformat="win64" || objformat="win32"

  5119.         enable dos_paths

  5120.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5121.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5122.         ;;

  5123.     *-dos|freedos|opendos)

  5124.         network_extralibs="-lsocket"

  5125.         objformat="coff"

  5126.         enable dos_paths

  5127.         add_cppflags -U__STRICT_ANSI__

  5128.         ;;

  5129.     linux)

  5130.         enable section_data_rel_ro

  5131.         enabled_any arm aarch64 && enable_weak linux_perf

  5132.         ;;

  5133.     irix*)

  5134.         target_os=irix

  5135.         ranlib="echo ignoring ranlib"

  5136.         ;;

  5137.     os/2*)

  5138.         strip="lxlite -CS"

  5139.         striptype=""

  5140.         objformat="aout"

  5141.         add_cppflags -D_GNU_SOURCE

  5142.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5143.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5144.         LIBSUF="_s.a"

  5145.         SLIBPREF=""

  5146.         SLIBSUF=".dll"

  5147.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5148.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5149.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5150.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5151.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5152.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5153.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5154.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5155.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5156.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5157.         SLIB_INSTALL_LINKS=

  5158.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5159.         enable dos_paths

  5160.         enable_weak os2threads

  5161.         ;;

  5162.     gnu/kfreebsd)

  5163.         add_cppflags -D_BSD_SOURCE

  5164.         ;;

  5165.     gnu)

  5166.         ;;

  5167.     qnx)

  5168.         add_cppflags -D_QNX_SOURCE

  5169.         network_extralibs="-lsocket"

  5170.         ;;

  5171.     symbian)

  5172.         SLIBSUF=".dll"

  5173.         enable dos_paths

  5174.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5175.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5176.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5177.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5178.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5179.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5180.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5181.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5182.         ;;

  5183.     osf1)

  5184.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5185.         ;;

  5186.     minix)

  5187.         ;;

  5188.     none)

  5189.         ;;

  5190.     *)

  5191.         die "Unknown OS '$target_os'."

  5192.         ;;

  5193. esac

  5194. 

  5195. # test if creating links works

  5196. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5197. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5198. mkdir "$link_dest"

  5199. $ln_s "$link_dest" "$link_name"

  5200. touch "$link_dest/test_file"

  5201. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5202.     # create link to source path

  5203.     [ -e src ] && rm src

  5204.     $ln_s "$source_path" src

  5205.     source_link=src

  5206. else

  5207.     # creating directory links doesn't work

  5208.     # fall back to using the full source path

  5209.     source_link="$source_path"

  5210. fi

  5211. # cleanup

  5212. rm -r "$link_dest"

  5213. rm -r "$link_name"

  5214. 

  5215. # determine libc flavour

  5216. 

  5217. probe_libc(){

  5218.     pfx=$1

  5219.     pfx_no_=${pfx%_}

  5220.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5221.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5222.         eval ${pfx}libc_type=uclibc

  5223.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5224.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5225.         eval ${pfx}libc_type=glibc

  5226.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5227.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5228.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5229.         eval ${pfx}libc_type=newlib

  5230.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5231.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5232.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5233.         eval ${pfx}libc_type=mingw64

  5234.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5235.             add_compat msvcrt/snprintf.o

  5236.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5237.         fi

  5238.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5239.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5240.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5241.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5242.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5243.         eval ${pfx}libc_type=mingw32

  5244.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5245.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5246.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5247.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5248.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5249.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5250.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5251.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5252.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5253.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5254.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5255.         eval ${pfx}libc_type=msvcrt

  5256.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5257.             if [ "$pfx" = host_ ]; then

  5258.                 add_host_cppflags -Dsnprintf=_snprintf

  5259.             else

  5260.                 add_compat strtod.o strtod=avpriv_strtod

  5261.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5262.                                              _snprintf=avpriv_snprintf  \

  5263.                                              vsnprintf=avpriv_vsnprintf

  5264.             fi

  5265.         fi

  5266.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5267.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5268.         # 0x601 by default unless something else is set by the user.

  5269.         # This can easily lead to us detecting functions only present

  5270.         # in such new versions and producing binaries requiring windows 7.0.

  5271.         # Therefore explicitly set the default to XP unless the user has

  5272.         # set something else on the command line.

  5273.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5274.         # family. For these cases, configure is free to use any functions

  5275.         # found in the SDK headers by default. (Alternatively, we could force

  5276.         # _WIN32_WINNT to 0x0602 in that case.)

  5277.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5278.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5279. #ifdef WINAPI_FAMILY

  5280. #include <winapifamily.h>

  5281. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5282. #error not desktop

  5283. #endif

  5284. #endif

  5285. EOF

  5286.         if [ "$pfx" = "" ]; then

  5287.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5288.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5289.         fi

  5290.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5291.         eval ${pfx}libc_type=klibc

  5292.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5293.         eval ${pfx}libc_type=bionic

  5294.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5295.         eval ${pfx}libc_type=solaris

  5296.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5297.     fi

  5298.     check_${pfx}cc <<EOF

  5299. #include <time.h>

  5300. void *v = localtime_r;

  5301. EOF

  5302. 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

  5303. #include <time.h>

  5304. void *v = localtime_r;

  5305. EOF

  5306. 

  5307. }

  5308. 

  5309. probe_libc

  5310. test -n "$libc_type" && enable libc_$libc_type

  5311. probe_libc host_

  5312. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5313. 

  5314. # hacks for compiler/libc/os combinations

  5315. 

  5316. case $libc_type in

  5317.     bionic)

  5318.         add_compat strtod.o strtod=avpriv_strtod

  5319.         ;;

  5320.     glibc)

  5321.         if enabled tms470; then

  5322.             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5323.             add_cppflags -D__USER_LABEL_PREFIX__=

  5324.             add_cppflags -D__builtin_memset=memset

  5325.             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5326.             add_cflags   -pds=48    # incompatible redefinition of macro

  5327.         elif enabled ccc; then

  5328.             add_ldflags -Wl,-z,now  # calls to libots crash without this

  5329.         fi

  5330.         ;;

  5331. esac

  5332. 

  5333. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5334.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5335. 

  5336. esc(){

  5337.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5338. }

  5339. 

  5340. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5341. 

  5342. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5343. 

  5344. set_default libdir

  5345. : ${shlibdir_default:="$libdir"}

  5346. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5347. 

  5348. set_default $PATHS_LIST

  5349. set_default nm

  5350. 

  5351. # we need to build at least one lib type

  5352. if ! enabled_any static shared; then

  5353.     cat <<EOF

  5354. At least one library type must be built.

  5355. Specify --enable-static to build the static libraries or --enable-shared to

  5356. build the shared libraries as well. To only build the shared libraries specify

  5357. --disable-static in addition to --enable-shared.

  5358. EOF

  5359.     exit 1

  5360. fi

  5361. 

  5362. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5363. 

  5364. enable_weak_pic() {

  5365.     disabled pic && return

  5366.     enable pic

  5367.     add_cppflags -DPIC

  5368.     case "$target_os" in

  5369.     mingw*|cygwin*)

  5370.         ;;

  5371.     *)

  5372.         add_cflags -fPIC

  5373.         ;;

  5374.     esac

  5375.     add_asflags  -fPIC

  5376. }

  5377. 

  5378. enabled pic && enable_weak_pic

  5379. 

  5380. check_cc <<EOF || die "Symbol mangling check failed."

  5381. int ff_extern;

  5382. EOF

  5383. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5384. extern_prefix=${sym%%ff_extern*}

  5385. 

  5386. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5387. 

  5388. _restrict=

  5389. for restrict_keyword in restrict __restrict__ __restrict; do

  5390.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5391. void foo(char * $restrict_keyword p);

  5392. EOF

  5393. done

  5394. 

  5395. check_cc <<EOF && enable pragma_deprecated

  5396. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5397. EOF

  5398. 

  5399. check_cc <<EOF && enable attribute_packed

  5400. struct { int x; } __attribute__((packed)) x;

  5401. EOF

  5402. 

  5403. check_cc <<EOF && enable attribute_may_alias

  5404. union { int x; } __attribute__((may_alias)) x;

  5405. EOF

  5406. 

  5407. check_cc <<EOF || die "endian test failed"

  5408. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5409. EOF

  5410. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5411. 

  5412. check_cc <<EOF && enable const_nan

  5413. #include <math.h>

  5414. void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }

  5415. EOF

  5416. 

  5417. if ! enabled ppc64 || enabled bigendian; then

  5418.     disable vsx

  5419. fi

  5420. 

  5421. check_gas() {

  5422.     log "check_gas using '$as' as AS"

  5423.     # :vararg is used on aarch64, arm and ppc altivec

  5424.     check_as <<EOF || return 1

  5425. .macro m n, y:vararg=0

  5426. \n: .int \y

  5427. .endm

  5428. m x

  5429. EOF

  5430.     # .altmacro is only used in arm asm

  5431.     ! enabled arm || check_as <<EOF || return 1

  5432. .altmacro

  5433. EOF

  5434.     enable gnu_as

  5435.     return 0

  5436. }

  5437. 

  5438. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5439.     nogas=:

  5440.     enabled_any arm aarch64 && nogas=die

  5441.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5442.     as_noop=-v

  5443. 

  5444.     case $as_type in

  5445.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5446.         gcc)  gaspp_as_type=gas ;;

  5447.         *)    gaspp_as_type=$as_type ;;

  5448.     esac

  5449. 

  5450.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5451. 

  5452.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5453.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5454.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5455. 

  5456.     if ! check_gas ; then

  5457.         as=${gas:=$as}

  5458.         check_gas || \

  5459.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5460.     fi

  5461. 

  5462.     check_as <<EOF && enable as_func

  5463. .func test

  5464. .endfunc

  5465. EOF

  5466. fi

  5467. 

  5468. check_inline_asm inline_asm_labels '"1:\n"'

  5469. 

  5470. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5471. 

  5472. if enabled aarch64; then

  5473.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5474.     # internal assembler in clang 3.3 does not support this instruction

  5475.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5476.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5477. 

  5478.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5479. 

  5480. elif enabled alpha; then

  5481. 

  5482.     check_cflags -mieee

  5483. 

  5484. elif enabled arm; then

  5485. 

  5486.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5487. 

  5488.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5489. float func(float a, float b){ return a+b; }

  5490. EOF

  5491. 

  5492.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5493. 

  5494.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5495.         enable vfp_args

  5496.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5497.         enable vfp_args

  5498.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5499.         case "${cross_prefix:-$cc}" in

  5500.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5501.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5502. __asm__ (".eabi_attribute 28, 1");

  5503. int main(void) { return 0; }

  5504. EOF

  5505.         esac

  5506.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5507.     fi

  5508. 

  5509.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5510.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5511.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5512.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5513.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5514.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5515.     enabled setend  && check_insn setend  'setend be'

  5516. 

  5517.     [ $target_os = linux ] || [ $target_os = android ] ||

  5518.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5519.             $ARCH_EXT_LIST_ARM

  5520. 

  5521.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5522. 

  5523.     check_as <<EOF && enable as_dn_directive

  5524. ra .dn d0.i16

  5525. .unreq ra

  5526. EOF

  5527.     check_as <<EOF && enable as_fpu_directive

  5528. .fpu neon

  5529. EOF

  5530. 

  5531.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5532.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5533.         check_as <<EOF && enable as_object_arch

  5534. .object_arch armv4

  5535. EOF

  5536. 

  5537.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5538. 

  5539. elif enabled mips; then

  5540. 

  5541.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5542.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5543.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5544. 

  5545.     # Enable minimum ISA based on selected options

  5546.     if enabled mips64; then

  5547.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5548.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5549.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5550.     else

  5551.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5552.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5553.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5554.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5555.     fi

  5556. 

  5557.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5558.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5559.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5560.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5561.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5562. 

  5563.     if enabled bigendian && enabled msa; then

  5564.         disable msa

  5565.     fi

  5566. 

  5567. elif enabled parisc; then

  5568. 

  5569.     if enabled gcc; then

  5570.         case $($cc -dumpversion) in

  5571.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5572.         esac

  5573.     fi

  5574. 

  5575. elif enabled ppc; then

  5576. 

  5577.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5578. 

  5579.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5580.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5581.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5582.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5583. 

  5584.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5585.     if enabled altivec; then

  5586.         check_cflags -maltivec -mabi=altivec &&

  5587.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5588.         check_cflags -faltivec

  5589. 

  5590.         # check if our compiler supports Motorola AltiVec C API

  5591.         check_cc <<EOF || disable altivec

  5592. $inc_altivec_h

  5593. int main(void) {

  5594.     vector signed int v1 = (vector signed int) { 0 };

  5595.     vector signed int v2 = (vector signed int) { 1 };

  5596.     v1 = vec_add(v1, v2);

  5597.     return 0;

  5598. }

  5599. EOF

  5600. 

  5601.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5602.     fi

  5603. 

  5604.     if enabled vsx; then

  5605.         check_cflags -mvsx &&

  5606.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5607.     fi

  5608. 

  5609.     if enabled power8; then

  5610.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5611.     fi

  5612. 

  5613. elif enabled x86; then

  5614. 

  5615.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5616.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5617. 

  5618.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5619. 

  5620.     # check whether EBP is available on x86

  5621.     # As 'i' is stored on the stack, this program will crash

  5622.     # if the base pointer is used to access it because the

  5623.     # base pointer is cleared in the inline assembly code.

  5624.     check_exec_crash <<EOF && enable ebp_available

  5625. volatile int i=0;

  5626. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5627. return i;

  5628. EOF

  5629. 

  5630.     # check whether EBX is available on x86

  5631.     check_inline_asm ebx_available '""::"b"(0)' &&

  5632.         check_inline_asm ebx_available '"":::"%ebx"'

  5633. 

  5634.     # check whether xmm clobbers are supported

  5635.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5636. 

  5637.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5638.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5639. 

  5640.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5641.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5642.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5643. 

  5644.     probe_x86asm(){

  5645.         x86asmexe_probe=$1

  5646.         if check_cmd $x86asmexe_probe -v; then

  5647.             x86asmexe=$x86asmexe_probe

  5648.             x86asm_type=nasm

  5649.             x86asm_debug="-g -F dwarf"

  5650.         elif check_cmd $x86asmexe_probe --version; then

  5651.             x86asmexe=$x86asmexe_probe

  5652.             x86asm_type=yasm

  5653.             x86asm_debug="-g dwarf2"

  5654.         fi

  5655.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5656.     }

  5657. 

  5658.     if ! disabled_any asm mmx x86asm; then

  5659.         disable x86asm

  5660.         for program in $x86asmexe nasm yasm; do

  5661.             probe_x86asm $program && break

  5662.         done

  5663.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5664.         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5665.         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5666.         X86ASMFLAGS="-f $objformat"

  5667.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5668.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5669.         case "$objformat" in

  5670.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5671.         esac

  5672. 

  5673.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5674.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5675.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5676.         check_x86asm "CPU amdnop" || disable cpunop

  5677.     fi

  5678. 

  5679.     case "$cpu" in

  5680.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5681.             disable fast_clz

  5682.         ;;

  5683.     esac

  5684. 

  5685. fi

  5686. 

  5687. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5688. 

  5689. check_ldflags -Wl,--as-needed

  5690. check_ldflags -Wl,-z,noexecstack

  5691. 

  5692. if ! disabled network; then

  5693.     check_func getaddrinfo $network_extralibs

  5694.     check_func inet_aton $network_extralibs

  5695. 

  5696.     check_type netdb.h "struct addrinfo"

  5697.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5698.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5699.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5700.     check_type poll.h "struct pollfd"

  5701.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5702.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5703.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5704.     check_type netinet/in.h "struct sockaddr_in6"

  5705.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5706.     check_type "sys/types.h sys/socket.h" socklen_t

  5707. 

  5708.     # Prefer arpa/inet.h over winsock2

  5709.     if check_header arpa/inet.h ; then

  5710.         check_func closesocket

  5711.     elif check_header winsock2.h ; then

  5712.         check_func_headers winsock2.h closesocket -lws2 &&

  5713.             network_extralibs="-lws2" ||

  5714.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5715.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5716.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5717. 

  5718.         check_type ws2tcpip.h socklen_t

  5719.         check_type ws2tcpip.h "struct addrinfo"

  5720.         check_type ws2tcpip.h "struct group_source_req"

  5721.         check_type ws2tcpip.h "struct ip_mreq_source"

  5722.         check_type ws2tcpip.h "struct ipv6_mreq"

  5723.         check_type winsock2.h "struct pollfd"

  5724.         check_struct winsock2.h "struct sockaddr" sa_len

  5725.         check_type ws2tcpip.h "struct sockaddr_in6"

  5726.         check_type ws2tcpip.h "struct sockaddr_storage"

  5727.     else

  5728.         disable network

  5729.     fi

  5730. fi

  5731. 

  5732. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5733. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5734. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5735. check_builtin sarestart signal.h "SA_RESTART"

  5736. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5737. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5738. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5739. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5740. 

  5741. case "$custom_allocator" in

  5742.     jemalloc)

  5743.         # jemalloc by default does not use a prefix

  5744.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5745.     ;;

  5746.     tcmalloc)

  5747.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5748.         malloc_prefix=tc_

  5749.     ;;

  5750. esac

  5751. 

  5752. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5753. check_func  ${malloc_prefix}memalign            && enable memalign

  5754. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5755. 

  5756. check_func  access

  5757. check_func_headers stdlib.h arc4random

  5758. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5759. check_func  fcntl

  5760. check_func  fork

  5761. check_func  gethrtime

  5762. check_func  getopt

  5763. check_func  getrusage

  5764. check_func  gettimeofday

  5765. check_func  isatty

  5766. check_func  mach_absolute_time

  5767. check_func  mkstemp

  5768. check_func  mmap

  5769. check_func  mprotect

  5770. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5771. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5772. check_func  sched_getaffinity

  5773. check_func  setrlimit

  5774. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5775. check_func  strerror_r

  5776. check_func  sysconf

  5777. check_func  sysctl

  5778. check_func  usleep

  5779. 

  5780. check_func_headers conio.h kbhit

  5781. check_func_headers io.h setmode

  5782. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5783. check_func_headers stdlib.h getenv

  5784. check_func_headers sys/stat.h lstat

  5785. 

  5786. check_func_headers windows.h GetProcessAffinityMask

  5787. check_func_headers windows.h GetProcessTimes

  5788. check_func_headers windows.h GetSystemTimeAsFileTime

  5789. check_func_headers windows.h LoadLibrary

  5790. check_func_headers windows.h MapViewOfFile

  5791. check_func_headers windows.h PeekNamedPipe

  5792. check_func_headers windows.h SetConsoleTextAttribute

  5793. check_func_headers windows.h SetConsoleCtrlHandler

  5794. check_func_headers windows.h Sleep

  5795. check_func_headers windows.h VirtualAlloc

  5796. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5797. check_func_headers glob.h glob

  5798. enabled xlib &&

  5799.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5800. 

  5801. check_header d3d11.h

  5802. check_header direct.h

  5803. check_header dirent.h

  5804. check_header dlfcn.h

  5805. check_header dxgidebug.h

  5806. check_header dxva.h

  5807. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5808. check_header io.h

  5809. check_header libcrystalhd/libcrystalhd_if.h

  5810. check_header mach/mach_time.h

  5811. check_header malloc.h

  5812. check_header net/udplite.h

  5813. check_header poll.h

  5814. check_header sys/mman.h

  5815. check_header sys/param.h

  5816. check_header sys/resource.h

  5817. check_header sys/select.h

  5818. check_header sys/time.h

  5819. check_header sys/un.h

  5820. check_header termios.h

  5821. check_header unistd.h

  5822. check_header valgrind/valgrind.h

  5823. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5824. check_header windows.h

  5825. check_header X11/extensions/XvMClib.h

  5826. check_header asm/types.h

  5827. 

  5828. # it seems there are versions of clang in some distros that try to use the

  5829. # gcc headers, which explodes for stdatomic

  5830. # so we also check that atomics actually work here

  5831. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5832. 

  5833. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5834. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5835. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5836. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5837. 

  5838. enabled appkit       && check_apple_framework AppKit

  5839. enabled audiotoolbox && check_apple_framework AudioToolbox

  5840. enabled avfoundation && check_apple_framework AVFoundation

  5841. enabled coreimage    && check_apple_framework CoreImage

  5842. enabled videotoolbox && check_apple_framework VideoToolbox

  5843. 

  5844. check_apple_framework CoreFoundation

  5845. check_apple_framework CoreMedia

  5846. check_apple_framework CoreVideo

  5847. 

  5848. enabled avfoundation && {

  5849.     disable coregraphics applicationservices

  5850.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5851.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5852. 

  5853. enabled videotoolbox && {

  5854.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5855.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5856. }

  5857. 

  5858. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5859. 

  5860. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5861. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5862. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5863. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5864. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5865. 

  5866. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5867. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5868. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5869. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5870. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5871. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5872. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5873. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5874. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5875. 

  5876. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5877. 

  5878. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5879. 

  5880. if ! disabled w32threads && ! enabled pthreads; then

  5881.     check_func_headers "windows.h process.h" _beginthreadex &&

  5882.         enable w32threads || disable w32threads

  5883.     if ! enabled w32threads && enabled winrt; then

  5884.         check_func_headers "windows.h" CreateThread &&

  5885.             enable w32threads || disable w32threads

  5886.     fi

  5887. fi

  5888. 

  5889. # check for some common methods of building with pthread support

  5890. # do this before the optional library checks as some of them require pthreads

  5891. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5892.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5893.        check_lib pthreads pthread.h pthread_create -pthread; then

  5894.         add_cflags -pthread

  5895.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5896.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5897.         add_cflags -pthreads

  5898.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5899.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5900.         add_cflags -ldl -pthread

  5901.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5902.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5903.         :

  5904.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5905.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5906.         :

  5907.     elif check_func pthread_join && check_func pthread_create; then

  5908.         enable pthreads

  5909.     fi

  5910.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5911. fi

  5912. 

  5913. 

  5914. if enabled pthreads; then

  5915.   check_func pthread_cancel $pthreads_extralibs

  5916. fi

  5917. 

  5918. enabled pthreads &&

  5919.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5920. 

  5921. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5922. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5923. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5924. 

  5925. # On some systems dynamic loading requires no extra linker flags

  5926. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5927. 

  5928. check_lib libm math.h sin -lm

  5929. 

  5930. atan2f_args=2

  5931. copysign_args=2

  5932. hypot_args=2

  5933. ldexpf_args=2

  5934. powf_args=2

  5935. 

  5936. for func in $MATH_FUNCS; do

  5937.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5938. done

  5939. 

  5940. for func in $COMPLEX_FUNCS; do

  5941.     eval check_complexfunc $func \${${func}_args:-1}

  5942. done

  5943. 

  5944. # these are off by default, so fail if requested and not available

  5945. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5946. enabled cuvid             && { enabled cuda ||

  5947.                                die "ERROR: CUVID requires CUDA"; }

  5948. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5949. enabled decklink          && { require_header DeckLinkAPI.h &&

  5950.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5951. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5952. enabled frei0r            && require_header frei0r.h

  5953. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5954. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5955. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5956. enabled ladspa            && require_header ladspa.h

  5957. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5958. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5959. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5960. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5961. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5962.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5963.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5964. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5965. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5966. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5967. enabled libfdk_aac        && { use_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5968.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5969.                                  warn "using libfdk without pkg-config"; } }

  5970. 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"

  5971. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5972. enabled fontconfig        && enable libfontconfig

  5973. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5974. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5975. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5976. enabled libgme            && { use_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5977.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5978. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5979.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5980.                                done || die "ERROR: libgsm not found"; }

  5981. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5982. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5983. # While it may appear that require is being used as a pkg-config

  5984. # fallback for libmfx, it is actually being used to detect a different

  5985. # installation route altogether.  If libmfx is installed via the Intel

  5986. # Media SDK or Intel Media Server Studio, these don't come with

  5987. # pkg-config support.  Instead, users should make sure that the build

  5988. # can find the libraries and headers through other means.

  5989. enabled libmfx            && { use_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5990.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5991. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5992. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5993. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  5994. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5995.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5996.                                die "ERROR: libnpp not found"; }

  5997. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5998. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5999. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  6000.                                { use_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  6001.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  6002.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  6003. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  6004. enabled libopenjpeg       && { use_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  6005.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  6006. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  6007. enabled libopus           && {

  6008.     enabled libopus_decoder && {

  6009.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  6010.     }

  6011.     enabled libopus_encoder && {

  6012.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  6013.     }

  6014. }

  6015. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  6016. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  6017. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  6018. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  6019. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  6020. enabled libsmbclient      && { use_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  6021.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  6022. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  6023. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  6024. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  6025. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex

  6026. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  6027. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  6028. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  6029.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  6030.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  6031. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  6032. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  6033. enabled libvmaf           && require_pkg_config libvmaf libvmaf libvmaf.h compute_vmaf

  6034. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  6035. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  6036.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  6037. 

  6038. enabled libvpx            && {

  6039.     enabled libvpx_vp8_decoder && {

  6040.         use_pkg_config libvpx_vp8_decoder "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  6041.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  6042.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  6043.     }

  6044.     enabled libvpx_vp8_encoder && {

  6045.         use_pkg_config libvpx_vp8_encoder "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  6046.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  6047.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  6048.     }

  6049.     enabled libvpx_vp9_decoder && {

  6050.         use_pkg_config libvpx_vp9_decoder "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  6051.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  6052.     }

  6053.     enabled libvpx_vp9_encoder && {

  6054.         use_pkg_config libvpx_vp9_encoder "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  6055.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  6056.     }

  6057.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  6058.         die "libvpx enabled but no supported decoders found"

  6059.     fi

  6060. }

  6061. 

  6062. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  6063. enabled libwebp           && {

  6064.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  6065.     enabled libwebp_anim_encoder && use_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  6066. enabled libx264           && { use_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  6067.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  6068.                                  warn "using libx264 without pkg-config"; } } &&

  6069.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  6070.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  6071.                                enable libx262; }

  6072. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  6073.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  6074. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  6075. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  6076. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.3.0" zimg.h zimg_get_api_version

  6077. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  6078. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  6079.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  6080.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  6081. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  6082. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  6083. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  6084.                                { ! enabled cross_compile &&

  6085.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  6086.                                  add_ldflags -L/opt/vc/lib/ &&

  6087.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  6088.                                die "ERROR: mmal not found" &&

  6089.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  6090. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  6091.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  6092.                                die "ERROR: openal not found"; } &&

  6093.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  6094.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  6095. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  6096.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  6097.                                die "ERROR: opencl not found"; } &&

  6098.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  6099.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  6100.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  6101. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  6102.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  6103.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6104.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6105.                                die "ERROR: opengl not found."

  6106.                              }

  6107. enabled omx               && require_header OMX_Core.h

  6108. enabled omx_rpi           && { check_header OMX_Core.h ||

  6109.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6110.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  6111. enabled openssl           && { use_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  6112.                                use_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  6113.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6114.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6115.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6116.                                die "ERROR: openssl not found"; }

  6117. enabled rkmpp             && { { require_pkg_config rkmpp rockchip_mpp rockchip/rk_mpi.h mpp_create ||

  6118.                                  die "ERROR : Rockchip MPP was not found."; } &&

  6119.                                { check_func_headers rockchip/rk_mpi_cmd.h "MPP_DEC_GET_FREE_PACKET_SLOT_COUNT" ||

  6120.                                  die "ERROR: Rockchip MPP is outdated, please get a more recent one."; } &&

  6121.                                { enabled libdrm ||

  6122.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  6123.                              }

  6124. 

  6125. if enabled gcrypt; then

  6126.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6127.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6128.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6129.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6130.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6131.             die "ERROR: gcrypt not found"

  6132.         add_cflags $gcrypt_cflags

  6133.     else

  6134.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6135.     fi

  6136. fi

  6137. 

  6138. if enabled sdl2; then

  6139.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6140.     if check_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent; then

  6141.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6142.             disable sdl2

  6143.     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6144.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6145.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6146.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6147.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6148.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags &&

  6149.             enable sdl2

  6150.     fi

  6151.     if test $target_os = "mingw32"; then

  6152.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6153.     fi

  6154. fi

  6155. 

  6156. if enabled decklink; then

  6157.     case $target_os in

  6158.         mingw32*|mingw64*|win32|win64)

  6159.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6160.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6161.             ;;

  6162.     esac

  6163. fi

  6164. 

  6165. enabled securetransport &&

  6166.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6167.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6168.         disable securetransport

  6169. 

  6170. enabled schannel &&

  6171.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6172.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6173.     schannel_extralibs="-lsecur32" ||

  6174.         disable schannel

  6175. 

  6176. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6177. enabled makeinfo \

  6178.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6179.     && enable makeinfo_html || disable makeinfo_html

  6180. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6181. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6182. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6183. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6184. 

  6185. # check V4L2 codecs available in the API

  6186. check_header linux/fb.h

  6187. check_header linux/videodev2.h

  6188. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6189. check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m

  6190. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m

  6191. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m

  6192. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m

  6193. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m

  6194. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m

  6195. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m

  6196. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m

  6197. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m

  6198. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m

  6199. 

  6200. check_header sys/videoio.h

  6201. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6202. 

  6203. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6204. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6205. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6206. # w32api 3.12 had it defined wrong

  6207. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6208. 

  6209. check_type "dshow.h" IBaseFilter

  6210. 

  6211. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6212. { check_header dev/bktr/ioctl_meteor.h &&

  6213.   check_header dev/bktr/ioctl_bt848.h; } ||

  6214. { check_header machine/ioctl_meteor.h &&

  6215.   check_header machine/ioctl_bt848.h; } ||

  6216. { check_header dev/video/meteor/ioctl_meteor.h &&

  6217.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6218. check_header dev/ic/bt8xx.h

  6219. 

  6220. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6221.     enable_safe sys/soundcard.h

  6222. else

  6223.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  6224.     #include <sys/soundcard.h>

  6225.     audio_buf_info abc;

  6226. EOF

  6227. fi

  6228. check_header soundcard.h

  6229. 

  6230. enabled alsa && use_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6231.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6232. 

  6233. enabled libjack &&

  6234.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6235. 

  6236. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6237. 

  6238. if enabled libcdio; then

  6239.     use_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6240.     use_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6241.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6242.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6243.     die "ERROR: No usable libcdio/cdparanoia found"

  6244. fi

  6245. 

  6246. enabled libxcb && use_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6247.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6248. 

  6249. if enabled libxcb; then

  6250.     enabled libxcb_shm    && use_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6251.     enabled libxcb_shape  && use_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6252.     enabled libxcb_xfixes && use_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6253. fi

  6254. 

  6255. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6256. 

  6257. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6258. # the desktop api partition

  6259. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6260. #ifdef WINAPI_FAMILY

  6261. #include <winapifamily.h>

  6262. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6263. #error desktop, not uwp

  6264. #else

  6265. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6266. #endif

  6267. #else

  6268. #error no family set

  6269. #endif

  6270. EOF

  6271. 

  6272. enabled vaapi &&

  6273.     check_lib vaapi va/va.h vaInitialize -lva

  6274. 

  6275. enabled vaapi &&

  6276.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6277.     disable vaapi

  6278. 

  6279. enabled vaapi &&

  6280.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6281. 

  6282. enabled vaapi &&

  6283.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6284. 

  6285. enabled vaapi &&

  6286.     check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&

  6287.     enable vaapi_1

  6288. 

  6289. enabled vdpau &&

  6290.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6291.     disable vdpau

  6292. 

  6293. enabled vdpau &&

  6294.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6295. 

  6296. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6297. 

  6298. if enabled x86; then

  6299.     case $target_os in

  6300.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6301.             ;;

  6302.         *)

  6303.             disable cuda cuvid nvenc

  6304.             ;;

  6305.     esac

  6306. else

  6307.     disable cuda cuvid nvenc

  6308. fi

  6309. 

  6310. enabled nvenc &&

  6311.     check_cc -I$source_path <<EOF || disable nvenc

  6312. #include "compat/nvenc/nvEncodeAPI.h"

  6313. NV_ENCODE_API_FUNCTION_LIST flist;

  6314. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6315. int main(void) { return 0; }

  6316. EOF

  6317. 

  6318. # Funny iconv installations are not unusual, so check it after all flags have been set

  6319. if enabled libc_iconv; then

  6320.     check_func_headers iconv.h iconv

  6321. elif enabled iconv; then

  6322.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6323. fi

  6324. 

  6325. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6326. 

  6327. # add some useful compiler flags if supported

  6328. check_cflags -Wdeclaration-after-statement

  6329. check_cflags -Wall

  6330. check_cflags -Wdisabled-optimization

  6331. check_cflags -Wpointer-arith

  6332. check_cflags -Wredundant-decls

  6333. check_cflags -Wwrite-strings

  6334. check_cflags -Wtype-limits

  6335. check_cflags -Wundef

  6336. check_cflags -Wmissing-prototypes

  6337. check_cflags -Wno-pointer-to-int-cast

  6338. check_cflags -Wstrict-prototypes

  6339. check_cflags -Wempty-body

  6340. 

  6341. if enabled extra_warnings; then

  6342.     check_cflags -Wcast-qual

  6343.     check_cflags -Wextra

  6344.     check_cflags -Wpedantic

  6345. fi

  6346. 

  6347. check_disable_warning(){

  6348.     warning_flag=-W${1#-Wno-}

  6349.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6350. }

  6351. 

  6352. test_cflags -Werror=unused-command-line-argument &&

  6353.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6354. test_cflags -Werror=unknown-warning-option &&

  6355.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6356. 

  6357. check_disable_warning -Wno-parentheses

  6358. check_disable_warning -Wno-switch

  6359. check_disable_warning -Wno-format-zero-length

  6360. check_disable_warning -Wno-pointer-sign

  6361. check_disable_warning -Wno-unused-const-variable

  6362. check_disable_warning -Wno-bool-operation

  6363. 

  6364. check_disable_warning_headers(){

  6365.     warning_flag=-W${1#-Wno-}

  6366.     test_cflags $warning_flag && add_cflags_headers $1

  6367. }

  6368. 

  6369. check_disable_warning_headers -Wno-deprecated-declarations

  6370. check_disable_warning_headers -Wno-unused-variable

  6371. 

  6372. check_cc <<EOF && enable blocks_extension

  6373. void (^block)(void);

  6374. EOF

  6375. 

  6376. # add some linker flags

  6377. check_ldflags -Wl,--warn-common

  6378. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6379. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6380. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6381. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6382. 

  6383. # add some strip flags

  6384. check_stripflags -x

  6385. 

  6386. enabled neon_clobber_test &&

  6387.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6388.                   -Wl,--wrap,avcodec_decode_audio4      \

  6389.                   -Wl,--wrap,avcodec_decode_video2      \

  6390.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6391.                   -Wl,--wrap,avcodec_encode_audio2      \

  6392.                   -Wl,--wrap,avcodec_encode_video2      \

  6393.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6394.                   -Wl,--wrap,avcodec_send_packet        \

  6395.                   -Wl,--wrap,avcodec_receive_packet     \

  6396.                   -Wl,--wrap,avcodec_send_frame         \

  6397.                   -Wl,--wrap,avcodec_receive_frame      \

  6398.                   -Wl,--wrap,swr_convert                \

  6399.                   -Wl,--wrap,avresample_convert ||

  6400.     disable neon_clobber_test

  6401. 

  6402. enabled xmm_clobber_test &&

  6403.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6404.                   -Wl,--wrap,avcodec_decode_audio4      \

  6405.                   -Wl,--wrap,avcodec_decode_video2      \

  6406.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6407.                   -Wl,--wrap,avcodec_encode_audio2      \

  6408.                   -Wl,--wrap,avcodec_encode_video2      \

  6409.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6410.                   -Wl,--wrap,avcodec_send_packet        \

  6411.                   -Wl,--wrap,avcodec_receive_packet     \

  6412.                   -Wl,--wrap,avcodec_send_frame         \

  6413.                   -Wl,--wrap,avcodec_receive_frame      \

  6414.                   -Wl,--wrap,swr_convert                \

  6415.                   -Wl,--wrap,avresample_convert         \

  6416.                   -Wl,--wrap,sws_scale ||

  6417.     disable xmm_clobber_test

  6418. 

  6419. check_ld "cc" <<EOF && enable proper_dce

  6420. extern const int array[512];

  6421. static inline int func(void) { return array[0]; }

  6422. int main(void) { return 0; }

  6423. EOF

  6424. 

  6425. if enabled proper_dce; then

  6426.     echo "X { local: *; };" > $TMPV

  6427.     if test_ldflags -Wl,${version_script},$TMPV; then

  6428.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6429.         check_cc <<EOF && enable symver_asm_label

  6430. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6431. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6432. EOF

  6433.         check_cc <<EOF && enable symver_gnu_asm

  6434. __asm__(".symver ff_foo,av_foo@VERSION");

  6435. void ff_foo(void) {}

  6436. EOF

  6437.     fi

  6438. fi

  6439. 

  6440. if [ -z "$optflags" ]; then

  6441.     if enabled small; then

  6442.         optflags=$cflags_size

  6443.     elif enabled optimizations; then

  6444.         optflags=$cflags_speed

  6445.     else

  6446.         optflags=$cflags_noopt

  6447.     fi

  6448. fi

  6449. 

  6450. if [ -z "$nvccflags" ]; then

  6451.     nvccflags=$nvccflags_default

  6452. fi

  6453. 

  6454. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6455.     nvccflags="$nvccflags -m64"

  6456. else

  6457.     nvccflags="$nvccflags -m32"

  6458. fi

  6459. 

  6460. check_optflags(){

  6461.     check_cflags "$@"

  6462.     enabled lto && check_ldflags "$@"

  6463. }

  6464. 

  6465. check_optflags $optflags

  6466. check_optflags -fno-math-errno

  6467. check_optflags -fno-signed-zeros

  6468. 

  6469. if enabled lto; then

  6470.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6471.     check_cflags  -flto

  6472.     check_ldflags -flto $cpuflags

  6473.     disable inline_asm_direct_symbol_refs

  6474. fi

  6475. 

  6476. enabled ftrapv && check_cflags -ftrapv

  6477. 

  6478. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6479. int x;

  6480. EOF

  6481. 

  6482. 

  6483. if enabled icc; then

  6484.     # Just warnings, no remarks

  6485.     check_cflags -w1

  6486.     # -wd: Disable following warnings

  6487.     # 144, 167, 556: -Wno-pointer-sign

  6488.     # 188: enumerated type mixed with another type

  6489.     # 1292: attribute "foo" ignored

  6490.     # 1419: external declaration in primary source file

  6491.     # 10006: ignoring unknown option -fno-signed-zeros

  6492.     # 10148: ignoring unknown option -Wno-parentheses

  6493.     # 10156: ignoring option '-W'; no argument required

  6494.     # 13200: No EMMS instruction before call to function

  6495.     # 13203: No EMMS instruction before return from function

  6496.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6497.     # 11030: Warning unknown option --as-needed

  6498.     # 10156: ignoring option '-export'; no argument required

  6499.     check_ldflags -wd10156,11030

  6500.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6501.     enable ebp_available

  6502.     # The test above does not test linking

  6503.     enabled lto && disable symver_asm_label

  6504.     if enabled x86_32; then

  6505.         icc_version=$($cc -dumpversion)

  6506.         test ${icc_version%%.*} -ge 11 &&

  6507.             check_cflags -falign-stack=maintain-16-byte ||

  6508.             disable aligned_stack

  6509.     fi

  6510. elif enabled ccc; then

  6511.     # disable some annoying warnings

  6512.     add_cflags -msg_disable bitnotint

  6513.     add_cflags -msg_disable mixfuncvoid

  6514.     add_cflags -msg_disable nonstandcast

  6515.     add_cflags -msg_disable unsupieee

  6516. elif enabled gcc; then

  6517.     check_optflags -fno-tree-vectorize

  6518.     check_cflags -Werror=format-security

  6519.     check_cflags -Werror=implicit-function-declaration

  6520.     check_cflags -Werror=missing-prototypes

  6521.     check_cflags -Werror=return-type

  6522.     check_cflags -Werror=vla

  6523.     check_cflags -Wformat

  6524.     check_cflags -fdiagnostics-color=auto

  6525.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6526. elif enabled llvm_gcc; then

  6527.     check_cflags -mllvm -stack-alignment=16

  6528. elif enabled clang; then

  6529.     check_cflags -mllvm -stack-alignment=16

  6530.     check_cflags -mstack-alignment=16

  6531.     check_cflags -Qunused-arguments

  6532.     check_cflags -Werror=implicit-function-declaration

  6533.     check_cflags -Werror=missing-prototypes

  6534.     check_cflags -Werror=return-type

  6535. elif enabled cparser; then

  6536.     add_cflags -Wno-missing-variable-declarations

  6537.     add_cflags -Wno-empty-statement

  6538. elif enabled armcc; then

  6539.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6540.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6541.     # 2523: use of inline assembly is deprecated

  6542.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6543.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6544.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6545.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6546.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6547.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6548. elif enabled tms470; then

  6549.     add_cflags -pds=824 -pds=837

  6550.     disable inline_asm

  6551. elif enabled pathscale; then

  6552.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6553.     disable inline_asm

  6554. elif enabled_any msvc icl; then

  6555.     enabled x86_32 && disable aligned_stack

  6556.     enabled_all x86_32 debug && add_cflags -Oy-

  6557.     enabled debug && add_ldflags -debug

  6558.     enable pragma_deprecated

  6559.     if enabled icl; then

  6560.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6561.         # (correctly) on icl 13.x.

  6562.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6563.             add_cflags -Qansi-alias

  6564.         # Some inline asm is not compilable in debug

  6565.         if enabled debug; then

  6566.             disable ebp_available

  6567.             disable ebx_available

  6568.         fi

  6569.     fi

  6570.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6571.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6572.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6573.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6574.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6575.     # MSVC 2013 and newer can handle it fine.

  6576.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6577.     # happens in config.h.

  6578.     if [ $_restrict != restrict ]; then

  6579.         check_cc <<EOF || add_cflags -FIstdlib.h

  6580. __declspec($_restrict) void* foo(int);

  6581. EOF

  6582.     fi

  6583.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6584.     # Issue has been fixed in MSVC v19.00.24218.

  6585.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6586.         check_cflags -d2SSAOptimizer-

  6587.     # enable utf-8 source processing on VS2015 U2 and newer

  6588.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6589.         add_cflags -utf-8

  6590. fi

  6591. 

  6592. for pfx in "" host_; do

  6593.     varname=${pfx%_}cc_type

  6594.     eval "type=\$$varname"

  6595.     if [ "$type" = "msvc" ]; then

  6596.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6597. static inline int foo(int a) { return a; }

  6598. EOF

  6599.     fi

  6600. done

  6601. 

  6602. case $as_type in

  6603.     clang)

  6604.         add_asflags -Qunused-arguments

  6605.     ;;

  6606. esac

  6607. 

  6608. case $ld_type in

  6609.     clang)

  6610.         check_ldflags -Qunused-arguments

  6611.     ;;

  6612. esac

  6613. 

  6614. case $target_os in

  6615.     osf1)

  6616.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6617.     ;;

  6618. esac

  6619. 

  6620. enable frame_thread_encoder

  6621. 

  6622. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6623. 

  6624. check_deps $CONFIG_LIST       \

  6625.            $CONFIG_EXTRA      \

  6626.            $HAVE_LIST         \

  6627.            $ALL_COMPONENTS    \

  6628. 

  6629. 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"

  6630. 

  6631. 

  6632. if test $target_os = "haiku"; then

  6633.     disable memalign

  6634.     disable posix_memalign

  6635. fi

  6636. 

  6637. flatten_extralibs(){

  6638.     unset nested_entries

  6639.     list_name=$1

  6640.     eval list=\$${1}

  6641.     for entry in $list; do

  6642.         entry_copy=$entry

  6643.         resolve entry_copy

  6644.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6645.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6646.         eval $entry="\$flat_entries"

  6647.     done

  6648.     append $list_name "$nested_entries"

  6649. 

  6650.     resolve nested_entries

  6651.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6652.         flatten_extralibs $list_name

  6653.     fi

  6654. }

  6655. 

  6656. for linkunit in $LIBRARY_LIST; do

  6657.     unset current_extralibs

  6658.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6659.     for comp in ${components}; do

  6660.         enabled $comp || continue

  6661.         comp_extralibs="${comp}_extralibs"

  6662.         append current_extralibs $comp_extralibs

  6663.     done

  6664.     eval prepend ${linkunit}_extralibs $current_extralibs

  6665. done

  6666. 

  6667. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6668.     flatten_extralibs ${linkunit}_extralibs

  6669.     unique  ${linkunit}_extralibs

  6670.     resolve ${linkunit}_extralibs

  6671.     eval ${linkunit}_extralibs=\$\(\$ldflags_filter \$${linkunit}_extralibs\)

  6672. done

  6673. 

  6674. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6675. 

  6676. for thread in $THREADS_LIST; do

  6677.     if enabled $thread; then

  6678.         test -n "$thread_type" &&

  6679.             die "ERROR: Only one thread type must be selected." ||

  6680.             thread_type="$thread"

  6681.     fi

  6682. done

  6683. 

  6684. if disabled stdatomic_h; then

  6685.     if enabled atomics_gcc; then

  6686.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6687.     elif enabled atomics_win32; then

  6688.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6689.     elif enabled atomics_suncc; then

  6690.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6691.     elif enabled pthreads; then

  6692.         add_compat atomics/pthread/stdatomic.o

  6693.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6694.     else

  6695.         enabled threads && die "Threading is enabled, but no atomics are available"

  6696.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6697.     fi

  6698. fi

  6699. 

  6700. # Check if requested libraries were found.

  6701. for lib in $AUTODETECT_LIBS; do

  6702.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6703. done

  6704. 

  6705. enabled zlib && add_cppflags -DZLIB_CONST

  6706. 

  6707. # conditional library dependencies, in linking order

  6708. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6709. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6710. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6711. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6712. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6713. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6714. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6715. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6716. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6717. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6718. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6719. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6720. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6721. enabled pan_filter          && prepend avfilter_deps "swresample"

  6722. enabled pp_filter           && prepend avfilter_deps "postproc"

  6723. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6724. enabled resample_filter && prepend avfilter_deps "avresample"

  6725. enabled sab_filter          && prepend avfilter_deps "swscale"

  6726. enabled scale_filter    && prepend avfilter_deps "swscale"

  6727. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6728. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6729. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6730. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6731. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6732. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6733. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6734. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6735. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6736. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6737. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6738. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6739. 

  6740. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6741. 

  6742. #FIXME

  6743. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6744. 

  6745. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6746. 

  6747. expand_deps(){

  6748.     lib_deps=${1}_deps

  6749.     eval "deps=\$$lib_deps"

  6750.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6751.     unique $lib_deps

  6752. }

  6753. 

  6754. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6755. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6756. 

  6757. map 'expand_deps $v' $LIBRARY_LIST

  6758. 

  6759. license="LGPL version 2.1 or later"

  6760. if enabled nonfree; then

  6761.     license="nonfree and unredistributable"

  6762. elif enabled gplv3; then

  6763.     license="GPL version 3 or later"

  6764. elif enabled lgplv3; then

  6765.     license="LGPL version 3 or later"

  6766. elif enabled gpl; then

  6767.     license="GPL version 2 or later"

  6768. fi

  6769. 

  6770. if test "$quiet" != "yes"; then

  6771. 

  6772. echo "install prefix            $prefix"

  6773. echo "source path               $source_path"

  6774. echo "C compiler                $cc"

  6775. echo "C library                 $libc_type"

  6776. if test "$host_cc" != "$cc"; then

  6777.     echo "host C compiler           $host_cc"

  6778.     echo "host C library            $host_libc_type"

  6779. fi

  6780. echo "ARCH                      $arch ($cpu)"

  6781. if test "$build_suffix" != ""; then

  6782.     echo "build suffix              $build_suffix"

  6783. fi

  6784. if test "$progs_suffix" != ""; then

  6785.     echo "progs suffix              $progs_suffix"

  6786. fi

  6787. if test "$extra_version" != ""; then

  6788.     echo "version string suffix     $extra_version"

  6789. fi

  6790. echo "big-endian                ${bigendian-no}"

  6791. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6792. if enabled x86; then

  6793.     echo "standalone assembly       ${x86asm-no}"

  6794.     echo "x86 assembler             ${x86asmexe}"

  6795.     echo "MMX enabled               ${mmx-no}"

  6796.     echo "MMXEXT enabled            ${mmxext-no}"

  6797.     echo "3DNow! enabled            ${amd3dnow-no}"

  6798.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6799.     echo "SSE enabled               ${sse-no}"

  6800.     echo "SSSE3 enabled             ${ssse3-no}"

  6801.     echo "AESNI enabled             ${aesni-no}"

  6802.     echo "AVX enabled               ${avx-no}"

  6803.     echo "AVX2 enabled              ${avx2-no}"

  6804.     echo "XOP enabled               ${xop-no}"

  6805.     echo "FMA3 enabled              ${fma3-no}"

  6806.     echo "FMA4 enabled              ${fma4-no}"

  6807.     echo "i686 features enabled     ${i686-no}"

  6808.     echo "CMOV is fast              ${fast_cmov-no}"

  6809.     echo "EBX available             ${ebx_available-no}"

  6810.     echo "EBP available             ${ebp_available-no}"

  6811. fi

  6812. if enabled aarch64; then

  6813.     echo "NEON enabled              ${neon-no}"

  6814.     echo "VFP enabled               ${vfp-no}"

  6815. fi

  6816. if enabled arm; then

  6817.     echo "ARMv5TE enabled           ${armv5te-no}"

  6818.     echo "ARMv6 enabled             ${armv6-no}"

  6819.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6820.     echo "VFP enabled               ${vfp-no}"

  6821.     echo "NEON enabled              ${neon-no}"

  6822.     echo "THUMB enabled             ${thumb-no}"

  6823. fi

  6824. if enabled mips; then

  6825.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6826.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6827.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6828.     echo "MIPS MSA enabled          ${msa-no}"

  6829.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6830. fi

  6831. if enabled ppc; then

  6832.     echo "AltiVec enabled           ${altivec-no}"

  6833.     echo "VSX enabled               ${vsx-no}"

  6834.     echo "POWER8 enabled            ${power8-no}"

  6835.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6836.     echo "dcbzl available           ${dcbzl-no}"

  6837. fi

  6838. echo "debug symbols             ${debug-no}"

  6839. echo "strip symbols             ${stripping-no}"

  6840. echo "optimize for size         ${small-no}"

  6841. echo "optimizations             ${optimizations-no}"

  6842. echo "static                    ${static-no}"

  6843. echo "shared                    ${shared-no}"

  6844. echo "postprocessing support    ${postproc-no}"

  6845. echo "network support           ${network-no}"

  6846. echo "threading support         ${thread_type-no}"

  6847. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6848. echo "texi2html enabled         ${texi2html-no}"

  6849. echo "perl enabled              ${perl-no}"

  6850. echo "pod2man enabled           ${pod2man-no}"

  6851. echo "makeinfo enabled          ${makeinfo-no}"

  6852. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6853. test -n "$random_seed" &&

  6854.     echo "random seed               ${random_seed}"

  6855. echo

  6856. 

  6857. echo "External libraries:"

  6858. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6859. echo

  6860. 

  6861. echo "External libraries providing hardware acceleration:"

  6862. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6863. echo

  6864. 

  6865. echo "Libraries:"

  6866. print_enabled '' $LIBRARY_LIST | print_in_columns

  6867. echo

  6868. 

  6869. echo "Programs:"

  6870. print_enabled '' $PROGRAM_LIST | print_in_columns

  6871. echo

  6872. 

  6873. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6874.     echo "Enabled ${type}s:"

  6875.     eval list=\$$(toupper $type)_LIST

  6876.     print_enabled '_*' $list | print_in_columns

  6877.     echo

  6878. done

  6879. 

  6880. if test -n "$ignore_tests"; then

  6881.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6882.     echo "Ignored FATE tests:"

  6883.     echo $ignore_tests | print_in_columns

  6884.     echo

  6885. fi

  6886. 

  6887. echo "License: $license"

  6888. 

  6889. echo "Creating configuration files ..."

  6890. 

  6891. fi # test "$quiet" != "yes"

  6892. 

  6893. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6894. 

  6895. enabled stripping || strip="echo skipping strip"

  6896. enabled stripping || striptype=""

  6897. 

  6898. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6899. 

  6900. cat > ffbuild/config.mak <<EOF

  6901. # Automatically generated by configure - do not modify!

  6902. ifndef FFMPEG_CONFIG_MAK

  6903. FFMPEG_CONFIG_MAK=1

  6904. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6905. prefix=$prefix

  6906. LIBDIR=\$(DESTDIR)$libdir

  6907. SHLIBDIR=\$(DESTDIR)$shlibdir

  6908. INCDIR=\$(DESTDIR)$incdir

  6909. BINDIR=\$(DESTDIR)$bindir

  6910. DATADIR=\$(DESTDIR)$datadir

  6911. DOCDIR=\$(DESTDIR)$docdir

  6912. MANDIR=\$(DESTDIR)$mandir

  6913. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6914. INSTALL_NAME_DIR=$install_name_dir

  6915. SRC_PATH=$source_path

  6916. SRC_LINK=$source_link

  6917. ifndef MAIN_MAKEFILE

  6918. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6919. endif

  6920. CC_IDENT=$cc_ident

  6921. ARCH=$arch

  6922. INTRINSICS=$intrinsics

  6923. CC=$cc

  6924. CXX=$cxx

  6925. AS=$as

  6926. OBJCC=$objcc

  6927. LD=$ld

  6928. DEPCC=$dep_cc

  6929. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6930. DEPAS=$as

  6931. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6932. X86ASM=$x86asmexe

  6933. DEPX86ASM=$x86asmexe

  6934. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6935. AR=$ar

  6936. ARFLAGS=$arflags

  6937. AR_O=$ar_o

  6938. RANLIB=$ranlib

  6939. STRIP=$strip

  6940. STRIPTYPE=$striptype

  6941. NVCC=$nvcc

  6942. CP=cp -p

  6943. LN_S=$ln_s

  6944. CPPFLAGS=$CPPFLAGS

  6945. CFLAGS=$CFLAGS

  6946. CXXFLAGS=$CXXFLAGS

  6947. OBJCFLAGS=$OBJCFLAGS

  6948. ASFLAGS=$ASFLAGS

  6949. NVCCFLAGS=$nvccflags

  6950. AS_C=$AS_C

  6951. AS_O=$AS_O

  6952. OBJCC_C=$OBJCC_C

  6953. OBJCC_E=$OBJCC_E

  6954. OBJCC_O=$OBJCC_O

  6955. CC_C=$CC_C

  6956. CC_E=$CC_E

  6957. CC_O=$CC_O

  6958. CXX_C=$CXX_C

  6959. CXX_O=$CXX_O

  6960. NVCC_C=$NVCC_C

  6961. NVCC_O=$NVCC_O

  6962. LD_O=$LD_O

  6963. X86ASM_O=$X86ASM_O

  6964. LD_LIB=$LD_LIB

  6965. LD_PATH=$LD_PATH

  6966. DLLTOOL=$dlltool

  6967. WINDRES=$windres

  6968. DEPWINDRES=$dep_cc

  6969. DOXYGEN=$doxygen

  6970. LDFLAGS=$LDFLAGS

  6971. LDEXEFLAGS=$LDEXEFLAGS

  6972. LDLIBFLAGS=$LDLIBFLAGS

  6973. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6974. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6975. X86ASMFLAGS=$X86ASMFLAGS

  6976. BUILDSUF=$build_suffix

  6977. PROGSSUF=$progs_suffix

  6978. FULLNAME=$FULLNAME

  6979. LIBPREF=$LIBPREF

  6980. LIBSUF=$LIBSUF

  6981. LIBNAME=$LIBNAME

  6982. SLIBPREF=$SLIBPREF

  6983. SLIBSUF=$SLIBSUF

  6984. EXESUF=$EXESUF

  6985. EXTRA_VERSION=$extra_version

  6986. CCDEP=$CCDEP

  6987. CXXDEP=$CXXDEP

  6988. CCDEP_FLAGS=$CCDEP_FLAGS

  6989. ASDEP=$ASDEP

  6990. ASDEP_FLAGS=$ASDEP_FLAGS

  6991. X86ASMDEP=$X86ASMDEP

  6992. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6993. CC_DEPFLAGS=$CC_DEPFLAGS

  6994. AS_DEPFLAGS=$AS_DEPFLAGS

  6995. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6996. HOSTCC=$host_cc

  6997. HOSTLD=$host_ld

  6998. HOSTCFLAGS=$host_cflags

  6999. HOSTCPPFLAGS=$host_cppflags

  7000. HOSTEXESUF=$HOSTEXESUF

  7001. HOSTLDFLAGS=$host_ldflags

  7002. HOSTEXTRALIBS=$host_extralibs

  7003. DEPHOSTCC=$host_cc

  7004. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  7005. HOSTCCDEP=$HOSTCCDEP

  7006. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  7007. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  7008. HOSTCC_C=$HOSTCC_C

  7009. HOSTCC_O=$HOSTCC_O

  7010. HOSTLD_O=$HOSTLD_O

  7011. TARGET_EXEC=$target_exec $target_exec_args

  7012. TARGET_PATH=$target_path

  7013. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  7014. CFLAGS-ffplay=${sdl2_cflags}

  7015. CFLAGS_HEADERS=$CFLAGS_HEADERS

  7016. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  7017. EXTRALIBS=$extralibs

  7018. COMPAT_OBJS=$compat_objs

  7019. INSTALL=$install

  7020. LIBTARGET=${LIBTARGET}

  7021. SLIBNAME=${SLIBNAME}

  7022. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  7023. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  7024. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  7025. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  7026. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  7027. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  7028. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  7029. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  7030. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  7031. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  7032. NOREDZONE_FLAGS=$noredzone_flags

  7033. LIBFUZZER_PATH=$libfuzzer_path

  7034. IGNORE_TESTS=$ignore_tests

  7035. EOF

  7036. 

  7037. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  7038. 

  7039. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  7040.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  7041. done

  7042. 

  7043. cat > $TMPH <<EOF

  7044. /* Automatically generated by configure - do not modify! */

  7045. #ifndef FFMPEG_CONFIG_H

  7046. #define FFMPEG_CONFIG_H

  7047. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  7048. #define FFMPEG_LICENSE "$(c_escape $license)"

  7049. #define CONFIG_THIS_YEAR 2017

  7050. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  7051. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  7052. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  7053. #define av_restrict $_restrict

  7054. #define EXTERN_PREFIX "${extern_prefix}"

  7055. #define EXTERN_ASM ${extern_prefix}

  7056. #define BUILDSUF "$build_suffix"

  7057. #define SLIBSUF "$SLIBSUF"

  7058. #define HAVE_MMX2 HAVE_MMXEXT

  7059. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  7060. EOF

  7061. 

  7062. test -n "$assert_level" &&

  7063.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  7064. 

  7065. test -n "$malloc_prefix" &&

  7066.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  7067. 

  7068. if enabled x86asm; then

  7069.     append config_files $TMPASM

  7070.     printf '' >$TMPASM

  7071. fi

  7072. 

  7073. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  7074. 

  7075. 

  7076. mkdir -p doc

  7077. mkdir -p tests

  7078. mkdir -p tests/api

  7079. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  7080. 

  7081. print_config ARCH_   "$config_files" $ARCH_LIST

  7082. print_config HAVE_   "$config_files" $HAVE_LIST

  7083. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  7084.                                      $CONFIG_EXTRA      \

  7085.                                      $ALL_COMPONENTS    \

  7086. 

  7087. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  7088. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  7089. 

  7090. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  7091. cp_if_changed $TMPH config.h

  7092. touch ffbuild/.config

  7093. 

  7094. enabled x86asm && cp_if_changed $TMPASM config.asm

  7095. 

  7096. cat > $TMPH <<EOF

  7097. /* Generated by ffconf */

  7098. #ifndef AVUTIL_AVCONFIG_H

  7099. #define AVUTIL_AVCONFIG_H

  7100. EOF

  7101. 

  7102. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7103. 

  7104. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7105. 

  7106. cp_if_changed $TMPH libavutil/avconfig.h

  7107. 

  7108. # generate the lists of enabled components

  7109. print_enabled_components(){

  7110.     file=$1

  7111.     struct_name=$2

  7112.     name=$3

  7113.     shift 3

  7114.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7115.     for c in $*; do

  7116.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  7117.     done

  7118.     echo "    NULL };" >> $TMPH

  7119.     cp_if_changed $TMPH $file

  7120. }

  7121. 

  7122. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7123. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7124. 

  7125. if test -n "$WARNINGS"; then

  7126.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  7127.     enabled fatal_warnings && exit 1

  7128. fi

  7129. 

  7130. # Settings for pkg-config files

  7131. 

  7132. cat > ffbuild/config.sh <<EOF

  7133. # Automatically generated by configure - do not modify!

  7134. shared=$shared

  7135. build_suffix=$build_suffix

  7136. prefix=$prefix

  7137. libdir=$libdir

  7138. incdir=$incdir

  7139. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7140. source_path=${source_path}

  7141. LIBPREF=${LIBPREF}

  7142. LIBSUF=${LIBSUF}

  7143. extralibs_avutil="$avutil_extralibs"

  7144. extralibs_avcodec="$avcodec_extralibs"

  7145. extralibs_avformat="$avformat_extralibs"

  7146. extralibs_avdevice="$avdevice_extralibs"

  7147. extralibs_avfilter="$avfilter_extralibs"

  7148. extralibs_avresample="$avresample_extralibs"

  7149. extralibs_postproc="$postproc_extralibs"

  7150. extralibs_swscale="$swscale_extralibs"

  7151. extralibs_swresample="$swresample_extralibs"

  7152. EOF

  7153. 

  7154. for lib in $LIBRARY_LIST; do

  7155.     lib_deps="$(eval echo \$${lib}_deps)"

  7156.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  7157. done