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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

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

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

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

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

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

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

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

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

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

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

  296.                            if gnutls is not used [no]

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

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

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

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

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

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

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

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

  305. 

  306.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  325. 

  326. Toolchain options:

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

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

  329.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  380. 

  381. Advanced options (experts only):

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

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

  384.   --disable-symver         disable symbol versioning

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

  386.   --disable-safe-bitstream-reader

  387.                            disable buffer boundary checking in bitreaders

  388.                            (faster, but may crash)

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

  390. 

  391. Optimization options (experts only):

  392.   --disable-asm            disable all assembly optimizations

  393.   --disable-altivec        disable AltiVec optimizations

  394.   --disable-vsx            disable VSX optimizations

  395.   --disable-power8         disable POWER8 optimizations

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

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

  398.   --disable-mmx            disable MMX optimizations

  399.   --disable-mmxext         disable MMXEXT optimizations

  400.   --disable-sse            disable SSE optimizations

  401.   --disable-sse2           disable SSE2 optimizations

  402.   --disable-sse3           disable SSE3 optimizations

  403.   --disable-ssse3          disable SSSE3 optimizations

  404.   --disable-sse4           disable SSE4 optimizations

  405.   --disable-sse42          disable SSE4.2 optimizations

  406.   --disable-avx            disable AVX optimizations

  407.   --disable-xop            disable XOP optimizations

  408.   --disable-fma3           disable FMA3 optimizations

  409.   --disable-fma4           disable FMA4 optimizations

  410.   --disable-avx2           disable AVX2 optimizations

  411.   --disable-aesni          disable AESNI optimizations

  412.   --disable-armv5te        disable armv5te optimizations

  413.   --disable-armv6          disable armv6 optimizations

  414.   --disable-armv6t2        disable armv6t2 optimizations

  415.   --disable-vfp            disable VFP optimizations

  416.   --disable-neon           disable NEON optimizations

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

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

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

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

  421.   --disable-msa            disable MSA optimizations

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

  423.   --disable-mmi            disable Loongson SIMD optimizations

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

  425. 

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

  427.   --disable-debug          disable debugging symbols

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

  429.   --disable-optimizations  disable compiler optimizations

  430.   --enable-extra-warnings  enable more compiler warnings

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

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

  433.                            2 causes a slowdown at runtime.

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

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

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

  437.                            Cannot be combined with --target-exec

  438.   --enable-ftrapv          Trap arithmetic overflows

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

  440.                            \$FATE_SAMPLES at make invocation time.

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

  442.                            used only for debugging purposes)

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

  444.                            should be used only for debugging purposes)

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

  446.   --disable-random

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

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

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

  450.                            (group) and PROB the probability associated with

  451.                            NAME (default 0.5).

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

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

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

  455.   --enable-osfuzz          Enable building fuzzer tool

  456.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  460. 

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

  462. EOF

  463.   exit 0

  464. }

  465. 

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

  467.     ncolors=$(tput colors)

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

  469.         bold_color=$(tput bold)

  470.         warn_color=$(tput setaf 3)

  471.         error_color=$(tput setaf 1)

  472.         reset_color=$(tput sgr0)

  473.     fi

  474.     # 72 used instead of 80 since that's the default of pr

  475.     ncols=$(tput cols)

  476. fi

  477. : ${ncols:=72}

  478. 

  479. log(){

  480.     echo "$@" >> $logfile

  481. }

  482. 

  483. log_file(){

  484.     log BEGIN $1

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

  486.     log END $1

  487. }

  488. 

  489. warn(){

  490.     log "WARNING: $*"

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

  492. }

  493. 

  494. die(){

  495.     log "$@"

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

  497.     cat <<EOF

  498. 

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

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

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

  502. EOF

  503.     if disabled logging; then

  504.         cat <<EOF

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

  506. include the log this produces with your report.

  507. EOF

  508.     else

  509.         cat <<EOF

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

  511. solve the problem.

  512. EOF

  513.     fi

  514.     exit 1

  515. }

  516. 

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

  518. toupper(){

  519.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  520. }

  521. 

  522. tolower(){

  523.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  524. }

  525. 

  526. c_escape(){

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

  528. }

  529. 

  530. sh_quote(){

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

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

  533.     echo "$v"

  534. }

  535. 

  536. cleanws(){

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

  538. }

  539. 

  540. filter(){

  541.     pat=$1

  542.     shift

  543.     for v; do

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

  545.     done

  546. }

  547. 

  548. filter_out(){

  549.     pat=$1

  550.     shift

  551.     for v; do

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

  553.     done

  554. }

  555. 

  556. map(){

  557.     m=$1

  558.     shift

  559.     for v; do eval $m; done

  560. }

  561. 

  562. add_suffix(){

  563.     suffix=$1

  564.     shift

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

  566. }

  567. 

  568. set_all(){

  569.     value=$1

  570.     shift

  571.     for var in $*; do

  572.         eval $var=$value

  573.     done

  574. }

  575. 

  576. set_weak(){

  577.     value=$1

  578.     shift

  579.     for var; do

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

  581.     done

  582. }

  583. 

  584. sanitize_var_name(){

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

  586. }

  587. 

  588. set_sanitized(){

  589.     var=$1

  590.     shift

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

  592. }

  593. 

  594. get_sanitized(){

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

  596. }

  597. 

  598. pushvar(){

  599.     for pvar in $*; do

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

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

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

  603.     done

  604. }

  605. 

  606. popvar(){

  607.     for pvar in $*; do

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

  609.         test $level = 0 && continue

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

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

  612.         eval ${pvar}_level=$level

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

  614.     done

  615. }

  616. 

  617. request(){

  618.     for var in $*; do

  619.         eval ${var}_requested=yes

  620.         eval $var=

  621.     done

  622. }

  623. 

  624. enable(){

  625.     set_all yes $*

  626. }

  627. 

  628. disable(){

  629.     set_all no $*

  630. }

  631. 

  632. enable_weak(){

  633.     set_weak yes $*

  634. }

  635. 

  636. disable_weak(){

  637.     set_weak no $*

  638. }

  639. 

  640. enable_sanitized(){

  641.     for var; do

  642.         enable $(sanitize_var_name $var)

  643.     done

  644. }

  645. 

  646. disable_sanitized(){

  647.     for var; do

  648.         disable $(sanitize_var_name $var)

  649.     done

  650. }

  651. 

  652. do_enable_deep(){

  653.     for var; do

  654.         enabled $var && continue

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

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

  657.         pushvar var sgs

  658.         enable_deep $sel

  659.         popvar sgs

  660.         enable_deep_weak $sgs

  661.         popvar var

  662.     done

  663. }

  664. 

  665. enable_deep(){

  666.     do_enable_deep $*

  667.     enable $*

  668. }

  669. 

  670. enable_deep_weak(){

  671.     for var; do

  672.         disabled $var && continue

  673.         pushvar var

  674.         do_enable_deep $var

  675.         popvar var

  676.         enable_weak $var

  677.     done

  678. }

  679. 

  680. requested(){

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

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

  683. }

  684. 

  685. enabled(){

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

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

  688. }

  689. 

  690. disabled(){

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

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

  693. }

  694. 

  695. enabled_all(){

  696.     for opt; do

  697.         enabled $opt || return 1

  698.     done

  699. }

  700. 

  701. disabled_all(){

  702.     for opt; do

  703.         disabled $opt || return 1

  704.     done

  705. }

  706. 

  707. enabled_any(){

  708.     for opt; do

  709.         enabled $opt && return 0

  710.     done

  711. }

  712. 

  713. disabled_any(){

  714.     for opt; do

  715.         disabled $opt && return 0

  716.     done

  717.     return 1

  718. }

  719. 

  720. set_default(){

  721.     for opt; do

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

  723.     done

  724. }

  725. 

  726. is_in(){

  727.     value=$1

  728.     shift

  729.     for var in $*; do

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

  731.     done

  732.     return 1

  733. }

  734. 

  735. check_deps(){

  736.     for cfg; do

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

  738.         disabled ${cfg}_checking && continue

  739.         enable ${cfg}_checking

  740. 

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

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

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

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

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

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

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

  748. 

  749.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  751.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  752. 

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

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

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

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

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

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

  759. 

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

  761. 

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

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

  764.             is_in $dep $LIBRARY_LIST && continue

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

  766.         done

  767. 

  768.         disable ${cfg}_checking

  769.     done

  770. }

  771. 

  772. print_config(){

  773.     pfx=$1

  774.     files=$2

  775.     shift 2

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

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

  778.         {

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

  780.             v = \$2;

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

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

  783.             for (f in files) {

  784.                 file = files[f];

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

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

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

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

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

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

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

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

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

  794.                     yesno = \$2;

  795.                     c2 = tolower(c);

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

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

  798.                 }

  799.             }

  800.         }"

  801. }

  802. 

  803. print_enabled(){

  804.     suf=$1

  805.     shift

  806.     for v; do

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

  808.     done

  809. }

  810. 

  811. append(){

  812.     var=$1

  813.     shift

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

  815. }

  816. 

  817. prepend(){

  818.     var=$1

  819.     shift

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

  821. }

  822. 

  823. unique(){

  824.     var=$1

  825.     uniq_list=""

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

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

  828.     done

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

  830. }

  831. 

  832. resolve(){

  833.     var=$1

  834.     tmpvar=

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

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

  837.     done

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

  839. }

  840. 

  841. add_cppflags(){

  842.     append CPPFLAGS "$@"

  843. }

  844. 

  845. add_cflags(){

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

  847. }

  848. 

  849. add_cflags_headers(){

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

  851. }

  852. 

  853. add_cxxflags(){

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

  855. }

  856. 

  857. add_asflags(){

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

  859. }

  860. 

  861. add_objcflags(){

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

  863. }

  864. 

  865. add_ldflags(){

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

  867. }

  868. 

  869. add_ldexeflags(){

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

  871. }

  872. 

  873. add_ldsoflags(){

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

  875. }

  876. 

  877. add_stripflags(){

  878.     append ASMSTRIPFLAGS "$@"

  879. }

  880. 

  881. add_extralibs(){

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

  883. }

  884. 

  885. add_host_cppflags(){

  886.     append host_cppflags "$@"

  887. }

  888. 

  889. add_host_cflags(){

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

  891. }

  892. 

  893. add_host_ldflags(){

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

  895. }

  896. 

  897. add_compat(){

  898.     append compat_objs $1

  899.     shift

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

  901. }

  902. 

  903. check_cmd(){

  904.     log "$@"

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

  906. }

  907. 

  908. check_stat(){

  909.     log check_stat "$@"

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

  911. }

  912. 

  913. cc_o(){

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

  915. }

  916. 

  917. cc_e(){

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

  919. }

  920. 

  921. check_cc(){

  922.     log check_cc "$@"

  923.     cat > $TMPC

  924.     log_file $TMPC

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

  926. }

  927. 

  928. check_cxx(){

  929.     log check_cxx "$@"

  930.     cat > $TMPCPP

  931.     log_file $TMPCPP

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

  933. }

  934. 

  935. check_objcc(){

  936.     log check_objcc "$@"

  937.     cat > $TMPM

  938.     log_file $TMPM

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

  940. }

  941. 

  942. check_cpp(){

  943.     log check_cpp "$@"

  944.     cat > $TMPC

  945.     log_file $TMPC

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

  947. }

  948. 

  949. as_o(){

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

  951. }

  952. 

  953. check_as(){

  954.     log check_as "$@"

  955.     cat > $TMPS

  956.     log_file $TMPS

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

  958. }

  959. 

  960. check_inline_asm(){

  961.     log check_inline_asm "$@"

  962.     name="$1"

  963.     code="$2"

  964.     shift 2

  965.     disable $name

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

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

  968. EOF

  969. }

  970. 

  971. check_inline_asm_flags(){

  972.     log check_inline_asm_flags "$@"

  973.     name="$1"

  974.     code="$2"

  975.     flags=''

  976.     shift 2

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

  978.       append flags $1

  979.       shift

  980.     done;

  981.     disable $name

  982.     cat > $TMPC <<EOF

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

  984. EOF

  985.     log_file $TMPC

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

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

  988. }

  989. 

  990. check_insn(){

  991.     log check_insn "$@"

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

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

  994. }

  995. 

  996. check_x86asm(){

  997.     log check_x86asm "$@"

  998.     echo "$1" > $TMPS

  999.     log_file $TMPS

  1000.     shift 1

  1001.     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS

  1002. }

  1003. 

  1004. ld_o(){

  1005.     eval printf '%s\\n' $LD_O

  1006. }

  1007. 

  1008. check_ld(){

  1009.     log check_ld "$@"

  1010.     type=$1

  1011.     shift 1

  1012.     flags=$(filter_out '-l*|*.so' $@)

  1013.     libs=$(filter '-l*|*.so' $@)

  1014.     check_$type $($cflags_filter $flags) || return

  1015.     flags=$($ldflags_filter $flags)

  1016.     libs=$($ldflags_filter $libs)

  1017.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1018. }

  1019. 

  1020. print_include(){

  1021.     hdr=$1

  1022.     test "${hdr%.h}" = "${hdr}" &&

  1023.         echo "#include $hdr"    ||

  1024.         echo "#include <$hdr>"

  1025. }

  1026. 

  1027. check_code(){

  1028.     log check_code "$@"

  1029.     check=$1

  1030.     headers=$2

  1031.     code=$3

  1032.     shift 3

  1033.     {

  1034.         for hdr in $headers; do

  1035.             print_include $hdr

  1036.         done

  1037.         echo "int main(void) { $code; return 0; }"

  1038.     } | check_$check "$@"

  1039. }

  1040. 

  1041. check_cppflags(){

  1042.     log check_cppflags "$@"

  1043.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1044. #include <stdlib.h>

  1045. EOF

  1046. }

  1047. 

  1048. test_cflags(){

  1049.     log test_cflags "$@"

  1050.     set -- $($cflags_filter "$@")

  1051.     check_cc "$@" <<EOF

  1052. int x;

  1053. EOF

  1054. }

  1055. 

  1056. check_cflags(){

  1057.     log check_cflags "$@"

  1058.     test_cflags "$@" && add_cflags "$@"

  1059. }

  1060. 

  1061. check_cxxflags(){

  1062.     log check_cxxflags "$@"

  1063.     set -- $($cflags_filter "$@")

  1064.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1065. int x;

  1066. EOF

  1067. }

  1068. 

  1069. test_objcflags(){

  1070.     log test_objcflags "$@"

  1071.     set -- $($objcflags_filter "$@")

  1072.     check_objcc "$@" <<EOF

  1073. int x;

  1074. EOF

  1075. }

  1076. 

  1077. check_objcflags(){

  1078.     log check_objcflags "$@"

  1079.     test_objcflags "$@" && add_objcflags "$@"

  1080. }

  1081. 

  1082. test_ldflags(){

  1083.     log test_ldflags "$@"

  1084.     set -- $($ldflags_filter "$@")

  1085.     check_ld "cc" "$@" <<EOF

  1086. int main(void){ return 0; }

  1087. EOF

  1088. }

  1089. 

  1090. check_ldflags(){

  1091.     log check_ldflags "$@"

  1092.     test_ldflags "$@" && add_ldflags "$@"

  1093. }

  1094. 

  1095. test_stripflags(){

  1096.     log test_stripflags "$@"

  1097.     # call check_cc to get a fresh TMPO

  1098.     check_cc <<EOF

  1099. int main(void) { return 0; }

  1100. EOF

  1101.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1102. }

  1103. 

  1104. check_stripflags(){

  1105.     log check_stripflags "$@"

  1106.     test_stripflags "$@" && add_stripflags "$@"

  1107. }

  1108. 

  1109. check_header(){

  1110.     log check_header "$@"

  1111.     headers=$1

  1112.     shift

  1113.     disable_sanitized $headers

  1114.     {

  1115.         for hdr in $headers; do

  1116.             print_include $hdr

  1117.         done

  1118.         echo "int x;"

  1119.     } | check_cpp "$@" && enable_sanitized $headers

  1120. }

  1121. 

  1122. check_header_objcc(){

  1123.     log check_header_objcc "$@"

  1124.     rm -f -- "$TMPO"

  1125.     header=$1

  1126.     shift

  1127.     disable_sanitized $header

  1128.     {

  1129.        echo "#include <$header>"

  1130.        echo "int main(void) { return 0; }"

  1131.     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header

  1132. }

  1133. 

  1134. check_apple_framework(){

  1135.     log check_apple_framework "$@"

  1136.     framework="$1"

  1137.     name="$(tolower $framework)"

  1138.     header="${framework}/${framework}.h"

  1139.     disable $name

  1140.     check_header_objcc $header &&

  1141.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1142. }

  1143. 

  1144. check_func(){

  1145.     log check_func "$@"

  1146.     func=$1

  1147.     shift

  1148.     disable $func

  1149.     check_ld "cc" "$@" <<EOF && enable $func

  1150. extern int $func();

  1151. int main(void){ $func(); }

  1152. EOF

  1153. }

  1154. 

  1155. check_complexfunc(){

  1156.     log check_complexfunc "$@"

  1157.     func=$1

  1158.     narg=$2

  1159.     shift 2

  1160.     test $narg = 2 && args="f, g" || args="f * I"

  1161.     disable $func

  1162.     check_ld "cc" "$@" <<EOF && enable $func

  1163. #include <complex.h>

  1164. #include <math.h>

  1165. float foo(complex float f, complex float g) { return $func($args); }

  1166. int main(void){ return (int) foo; }

  1167. EOF

  1168. }

  1169. 

  1170. check_mathfunc(){

  1171.     log check_mathfunc "$@"

  1172.     func=$1

  1173.     narg=$2

  1174.     shift 2

  1175.     test $narg = 2 && args="f, g" || args="f"

  1176.     disable $func

  1177.     check_ld "cc" "$@" <<EOF && enable $func

  1178. #include <math.h>

  1179. float foo(float f, float g) { return $func($args); }

  1180. int main(void){ return (int) foo; }

  1181. EOF

  1182. }

  1183. 

  1184. check_func_headers(){

  1185.     log check_func_headers "$@"

  1186.     headers=$1

  1187.     funcs=$2

  1188.     shift 2

  1189.     {

  1190.         for hdr in $headers; do

  1191.             print_include $hdr

  1192.         done

  1193.         echo "#include <stdint.h>"

  1194.         for func in $funcs; do

  1195.             echo "long check_$func(void) { return (long) $func; }"

  1196.         done

  1197.         echo "int main(void) { int ret = 0;"

  1198.         # LTO could optimize out the test functions without this

  1199.         for func in $funcs; do

  1200.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1201.         done

  1202.         echo "return ret; }"

  1203.     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1204. }

  1205. 

  1206. check_class_headers_cpp(){

  1207.     log check_class_headers_cpp "$@"

  1208.     headers=$1

  1209.     classes=$2

  1210.     shift 2

  1211.     {

  1212.         for hdr in $headers; do

  1213.             echo "#include <$hdr>"

  1214.         done

  1215.         echo "int main(void) { "

  1216.         i=1

  1217.         for class in $classes; do

  1218.             echo "$class obj$i;"

  1219.             i=$(expr $i + 1)

  1220.         done

  1221.         echo "return 0; }"

  1222.     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1223. }

  1224. 

  1225. check_cpp_condition(){

  1226.     log check_cpp_condition "$@"

  1227.     header=$1

  1228.     condition=$2

  1229.     shift 2

  1230.     check_cpp "$@" <<EOF

  1231. #include <$header>

  1232. #if !($condition)

  1233. #error "unsatisfied condition: $condition"

  1234. #endif

  1235. EOF

  1236. }

  1237. 

  1238. test_cflags_cc(){

  1239.     log test_cflags_cc "$@"

  1240.     flags=$1

  1241.     header=$2

  1242.     condition=$3

  1243.     shift 3

  1244.     set -- $($cflags_filter "$flags")

  1245.     check_cc "$@" <<EOF

  1246. #include <$header>

  1247. #if !($condition)

  1248. #error "unsatisfied condition: $condition"

  1249. #endif

  1250. EOF

  1251. }

  1252. 

  1253. check_lib(){

  1254.     log check_lib "$@"

  1255.     name="$1"

  1256.     headers="$2"

  1257.     funcs="$3"

  1258.     shift 3

  1259.     disable $name

  1260.     check_func_headers "$headers" "$funcs" "$@" &&

  1261.         enable $name && eval ${name}_extralibs="\$@"

  1262. }

  1263. 

  1264. check_lib_cpp(){

  1265.     log check_lib_cpp "$@"

  1266.     name="$1"

  1267.     headers="$2"

  1268.     classes="$3"

  1269.     shift 3

  1270.     disable $name

  1271.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1272.         enable $name && eval ${name}_extralibs="\$@"

  1273. }

  1274. 

  1275. test_pkg_config(){

  1276.     log test_pkg_config "$@"

  1277.     name="$1"

  1278.     pkg_version="$2"

  1279.     pkg="${2%% *}"

  1280.     headers="$3"

  1281.     funcs="$4"

  1282.     shift 4

  1283.     disable $name

  1284.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1285.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1286.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1287.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1288.         enable $name &&

  1289.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1290.         set_sanitized "${name}_extralibs" $pkg_libs

  1291. }

  1292. 

  1293. check_pkg_config(){

  1294.     log check_pkg_config "$@"

  1295.     name="$1"

  1296.     test_pkg_config "$@" &&

  1297.         eval add_cflags \$${name}_cflags

  1298. }

  1299. 

  1300. check_exec(){

  1301.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1302. }

  1303. 

  1304. check_exec_crash(){

  1305.     log check_exec_crash "$@"

  1306.     code=$(cat)

  1307. 

  1308.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1309.     # are safe but may not be available everywhere.  Thus we use

  1310.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1311.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1312.     # is not defined by standard C so it is used conditionally.

  1313. 

  1314.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1315. #include <signal.h>

  1316. static void sighandler(int sig){

  1317.     raise(SIGTERM);

  1318. }

  1319. int foo(void){

  1320.     $code

  1321. }

  1322. int (*func_ptr)(void) = foo;

  1323. int main(void){

  1324.     signal(SIGILL, sighandler);

  1325.     signal(SIGFPE, sighandler);

  1326.     signal(SIGSEGV, sighandler);

  1327. #ifdef SIGBUS

  1328.     signal(SIGBUS, sighandler);

  1329. #endif

  1330.     return func_ptr();

  1331. }

  1332. EOF

  1333. }

  1334. 

  1335. check_type(){

  1336.     log check_type "$@"

  1337.     headers=$1

  1338.     type=$2

  1339.     shift 2

  1340.     disable_sanitized "$type"

  1341.     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1342. }

  1343. 

  1344. check_struct(){

  1345.     log check_struct "$@"

  1346.     headers=$1

  1347.     struct=$2

  1348.     member=$3

  1349.     shift 3

  1350.     disable_sanitized "${struct}_${member}"

  1351.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1352.         enable_sanitized "${struct}_${member}"

  1353. }

  1354. 

  1355. check_builtin(){

  1356.     log check_builtin "$@"

  1357.     name=$1

  1358.     headers=$2

  1359.     builtin=$3

  1360.     shift 3

  1361.     disable "$name"

  1362.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1363. }

  1364. 

  1365. check_compile_assert(){

  1366.     log check_compile_assert "$@"

  1367.     name=$1

  1368.     headers=$2

  1369.     condition=$3

  1370.     shift 3

  1371.     disable "$name"

  1372.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1373. }

  1374. 

  1375. require(){

  1376.     log require "$@"

  1377.     name_version="$1"

  1378.     name="${1%% *}"

  1379.     headers="$2"

  1380.     func="$3"

  1381.     shift 3

  1382.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1383. }

  1384. 

  1385. require_cpp(){

  1386.     name="$1"

  1387.     headers="$2"

  1388.     classes="$3"

  1389.     shift 3

  1390.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1391. }

  1392. 

  1393. require_header(){

  1394.     log require_header "$@"

  1395.     headers="$1"

  1396.     shift

  1397.     check_header "$headers" "$@" || die "ERROR: $headers not found"

  1398. }

  1399. 

  1400. require_cpp_condition(){

  1401.     log require_cpp_condition "$@"

  1402.     header="$1"

  1403.     condition="$2"

  1404.     shift 2

  1405.     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"

  1406. }

  1407. 

  1408. require_pkg_config(){

  1409.     log require_pkg_config "$@"

  1410.     pkg_version="$2"

  1411.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1412. }

  1413. 

  1414. hostcc_e(){

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

  1416. }

  1417. 

  1418. hostcc_o(){

  1419.     eval printf '%s\\n' $HOSTCC_O

  1420. }

  1421. 

  1422. check_host_cc(){

  1423.     log check_host_cc "$@"

  1424.     cat > $TMPC

  1425.     log_file $TMPC

  1426.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1427. }

  1428. 

  1429. check_host_cpp(){

  1430.     log check_host_cpp "$@"

  1431.     cat > $TMPC

  1432.     log_file $TMPC

  1433.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1434. }

  1435. 

  1436. check_host_cppflags(){

  1437.     log check_host_cppflags "$@"

  1438.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1439. #include <stdlib.h>

  1440. EOF

  1441. }

  1442. 

  1443. check_host_cflags(){

  1444.     log check_host_cflags "$@"

  1445.     set -- $($host_cflags_filter "$@")

  1446.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1447. int x;

  1448. EOF

  1449. }

  1450. 

  1451. check_host_cpp_condition(){

  1452.     log check_host_cpp_condition "$@"

  1453.     header=$1

  1454.     condition=$2

  1455.     shift 2

  1456.     check_host_cpp "$@" <<EOF

  1457. #include <$header>

  1458. #if !($condition)

  1459. #error "unsatisfied condition: $condition"

  1460. #endif

  1461. EOF

  1462. }

  1463. 

  1464. cp_if_changed(){

  1465.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1466.     mkdir -p "$(dirname $2)"

  1467.     cp -f "$1" "$2"

  1468. }

  1469. 

  1470. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1471. # system-dependent things.

  1472. 

  1473. AVCODEC_COMPONENTS="

  1474.     bsfs

  1475.     decoders

  1476.     encoders

  1477.     hwaccels

  1478.     parsers

  1479. "

  1480. 

  1481. AVDEVICE_COMPONENTS="

  1482.     indevs

  1483.     outdevs

  1484. "

  1485. 

  1486. AVFILTER_COMPONENTS="

  1487.     filters

  1488. "

  1489. 

  1490. AVFORMAT_COMPONENTS="

  1491.     demuxers

  1492.     muxers

  1493.     protocols

  1494. "

  1495. 

  1496. COMPONENT_LIST="

  1497.     $AVCODEC_COMPONENTS

  1498.     $AVDEVICE_COMPONENTS

  1499.     $AVFILTER_COMPONENTS

  1500.     $AVFORMAT_COMPONENTS

  1501. "

  1502. 

  1503. EXAMPLE_LIST="

  1504.     avio_dir_cmd_example

  1505.     avio_reading_example

  1506.     decode_audio_example

  1507.     decode_video_example

  1508.     demuxing_decoding_example

  1509.     encode_audio_example

  1510.     encode_video_example

  1511.     extract_mvs_example

  1512.     filter_audio_example

  1513.     filtering_audio_example

  1514.     filtering_video_example

  1515.     http_multiclient_example

  1516.     hw_decode_example

  1517.     metadata_example

  1518.     muxing_example

  1519.     qsvdec_example

  1520.     remuxing_example

  1521.     resampling_audio_example

  1522.     scaling_video_example

  1523.     transcode_aac_example

  1524.     transcoding_example

  1525. "

  1526. 

  1527. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1528.     alsa

  1529.     appkit

  1530.     avfoundation

  1531.     bzlib

  1532.     coreimage

  1533.     iconv

  1534.     libxcb

  1535.     libxcb_shm

  1536.     libxcb_shape

  1537.     libxcb_xfixes

  1538.     lzma

  1539.     schannel

  1540.     sdl2

  1541.     securetransport

  1542.     sndio

  1543.     xlib

  1544.     zlib

  1545. "

  1546. 

  1547. EXTERNAL_LIBRARY_GPL_LIST="

  1548.     avisynth

  1549.     frei0r

  1550.     libcdio

  1551.     librubberband

  1552.     libvidstab

  1553.     libx264

  1554.     libx265

  1555.     libxavs

  1556.     libxvid

  1557. "

  1558. 

  1559. EXTERNAL_LIBRARY_NONFREE_LIST="

  1560.     decklink

  1561.     libndi_newtek

  1562.     libfdk_aac

  1563.     openssl

  1564. "

  1565. 

  1566. EXTERNAL_LIBRARY_VERSION3_LIST="

  1567.     gmp

  1568.     libopencore_amrnb

  1569.     libopencore_amrwb

  1570.     libvmaf

  1571.     libvo_amrwbenc

  1572.     rkmpp

  1573. "

  1574. 

  1575. EXTERNAL_LIBRARY_GPLV3_LIST="

  1576.     libsmbclient

  1577. "

  1578. 

  1579. EXTERNAL_LIBRARY_LIST="

  1580.     $EXTERNAL_LIBRARY_GPL_LIST

  1581.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1582.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1583.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1584.     chromaprint

  1585.     gcrypt

  1586.     gnutls

  1587.     jni

  1588.     ladspa

  1589.     libass

  1590.     libbluray

  1591.     libbs2b

  1592.     libcaca

  1593.     libcelt

  1594.     libdc1394

  1595.     libdrm

  1596.     libflite

  1597.     libfontconfig

  1598.     libfreetype

  1599.     libfribidi

  1600.     libgme

  1601.     libgsm

  1602.     libiec61883

  1603.     libilbc

  1604.     libjack

  1605.     libkvazaar

  1606.     libmodplug

  1607.     libmp3lame

  1608.     libmysofa

  1609.     libopencv

  1610.     libopenh264

  1611.     libopenjpeg

  1612.     libopenmpt

  1613.     libopus

  1614.     libpulse

  1615.     librsvg

  1616.     librtmp

  1617.     libshine

  1618.     libsmbclient

  1619.     libsnappy

  1620.     libsoxr

  1621.     libspeex

  1622.     libssh

  1623.     libtesseract

  1624.     libtheora

  1625.     libtwolame

  1626.     libv4l2

  1627.     libvorbis

  1628.     libvpx

  1629.     libwavpack

  1630.     libwebp

  1631.     libxml2

  1632.     libzimg

  1633.     libzmq

  1634.     libzvbi

  1635.     lv2

  1636.     mediacodec

  1637.     openal

  1638.     opengl

  1639. "

  1640. 

  1641. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1642.     audiotoolbox

  1643.     crystalhd

  1644.     cuda

  1645.     cuvid

  1646.     d3d11va

  1647.     dxva2

  1648.     nvdec

  1649.     nvenc

  1650.     vaapi

  1651.     vdpau

  1652.     videotoolbox

  1653.     v4l2_m2m

  1654.     xvmc

  1655. "

  1656. 

  1657. # catchall list of things that require external libs to link

  1658. EXTRALIBS_LIST="

  1659.     cpu_init

  1660.     cws2fws

  1661. "

  1662. 

  1663. HWACCEL_LIBRARY_NONFREE_LIST="

  1664.     cuda_sdk

  1665.     libnpp

  1666. "

  1667. 

  1668. HWACCEL_LIBRARY_LIST="

  1669.     $HWACCEL_LIBRARY_NONFREE_LIST

  1670.     libmfx

  1671.     mmal

  1672.     omx

  1673.     opencl

  1674. "

  1675. 

  1676. DOCUMENT_LIST="

  1677.     doc

  1678.     htmlpages

  1679.     manpages

  1680.     podpages

  1681.     txtpages

  1682. "

  1683. 

  1684. FEATURE_LIST="

  1685.     ftrapv

  1686.     gray

  1687.     hardcoded_tables

  1688.     omx_rpi

  1689.     runtime_cpudetect

  1690.     safe_bitstream_reader

  1691.     shared

  1692.     small

  1693.     static

  1694.     swscale_alpha

  1695. "

  1696. 

  1697. LIBRARY_LIST="

  1698.     avcodec

  1699.     avdevice

  1700.     avfilter

  1701.     avformat

  1702.     avresample

  1703.     avutil

  1704.     postproc

  1705.     swresample

  1706.     swscale

  1707. "

  1708. 

  1709. LICENSE_LIST="

  1710.     gpl

  1711.     nonfree

  1712.     version3

  1713. "

  1714. 

  1715. PROGRAM_LIST="

  1716.     ffplay

  1717.     ffprobe

  1718.     ffserver

  1719.     ffmpeg

  1720. "

  1721. 

  1722. SUBSYSTEM_LIST="

  1723.     dct

  1724.     dwt

  1725.     error_resilience

  1726.     faan

  1727.     fast_unaligned

  1728.     fft

  1729.     lsp

  1730.     lzo

  1731.     mdct

  1732.     pixelutils

  1733.     network

  1734.     rdft

  1735. "

  1736. 

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

  1738. CONFIG_LIST="

  1739.     $DOCUMENT_LIST

  1740.     $EXAMPLE_LIST

  1741.     $EXTERNAL_LIBRARY_LIST

  1742.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1743.     $HWACCEL_LIBRARY_LIST

  1744.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1745.     $FEATURE_LIST

  1746.     $LICENSE_LIST

  1747.     $LIBRARY_LIST

  1748.     $PROGRAM_LIST

  1749.     $SUBSYSTEM_LIST

  1750.     autodetect

  1751.     fontconfig

  1752.     linux_perf

  1753.     memory_poisoning

  1754.     neon_clobber_test

  1755.     ossfuzz

  1756.     pic

  1757.     thumb

  1758.     valgrind_backtrace

  1759.     xmm_clobber_test

  1760.     $COMPONENT_LIST

  1761. "

  1762. 

  1763. THREADS_LIST="

  1764.     pthreads

  1765.     os2threads

  1766.     w32threads

  1767. "

  1768. 

  1769. ATOMICS_LIST="

  1770.     atomics_gcc

  1771.     atomics_suncc

  1772.     atomics_win32

  1773. "

  1774. 

  1775. AUTODETECT_LIBS="

  1776.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1777.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1778.     $THREADS_LIST

  1779. "

  1780. 

  1781. ARCH_LIST="

  1782.     aarch64

  1783.     alpha

  1784.     arm

  1785.     avr32

  1786.     avr32_ap

  1787.     avr32_uc

  1788.     bfin

  1789.     ia64

  1790.     m68k

  1791.     mips

  1792.     mips64

  1793.     parisc

  1794.     ppc

  1795.     ppc64

  1796.     s390

  1797.     sh4

  1798.     sparc

  1799.     sparc64

  1800.     tilegx

  1801.     tilepro

  1802.     tomi

  1803.     x86

  1804.     x86_32

  1805.     x86_64

  1806. "

  1807. 

  1808. ARCH_EXT_LIST_ARM="

  1809.     armv5te

  1810.     armv6

  1811.     armv6t2

  1812.     armv8

  1813.     neon

  1814.     vfp

  1815.     vfpv3

  1816.     setend

  1817. "

  1818. 

  1819. ARCH_EXT_LIST_MIPS="

  1820.     mipsfpu

  1821.     mips32r2

  1822.     mips32r5

  1823.     mips64r2

  1824.     mips32r6

  1825.     mips64r6

  1826.     mipsdsp

  1827.     mipsdspr2

  1828.     msa

  1829. "

  1830. 

  1831. ARCH_EXT_LIST_LOONGSON="

  1832.     loongson2

  1833.     loongson3

  1834.     mmi

  1835. "

  1836. 

  1837. ARCH_EXT_LIST_X86_SIMD="

  1838.     aesni

  1839.     amd3dnow

  1840.     amd3dnowext

  1841.     avx

  1842.     avx2

  1843.     fma3

  1844.     fma4

  1845.     mmx

  1846.     mmxext

  1847.     sse

  1848.     sse2

  1849.     sse3

  1850.     sse4

  1851.     sse42

  1852.     ssse3

  1853.     xop

  1854. "

  1855. 

  1856. ARCH_EXT_LIST_PPC="

  1857.     altivec

  1858.     dcbzl

  1859.     ldbrx

  1860.     power8

  1861.     ppc4xx

  1862.     vsx

  1863. "

  1864. 

  1865. ARCH_EXT_LIST_X86="

  1866.     $ARCH_EXT_LIST_X86_SIMD

  1867.     cpunop

  1868.     i686

  1869. "

  1870. 

  1871. ARCH_EXT_LIST="

  1872.     $ARCH_EXT_LIST_ARM

  1873.     $ARCH_EXT_LIST_PPC

  1874.     $ARCH_EXT_LIST_X86

  1875.     $ARCH_EXT_LIST_MIPS

  1876.     $ARCH_EXT_LIST_LOONGSON

  1877. "

  1878. 

  1879. ARCH_FEATURES="

  1880.     aligned_stack

  1881.     fast_64bit

  1882.     fast_clz

  1883.     fast_cmov

  1884.     local_aligned

  1885.     simd_align_16

  1886.     simd_align_32

  1887. "

  1888. 

  1889. BUILTIN_LIST="

  1890.     atomic_cas_ptr

  1891.     machine_rw_barrier

  1892.     MemoryBarrier

  1893.     mm_empty

  1894.     rdtsc

  1895.     sarestart

  1896.     sem_timedwait

  1897.     sync_val_compare_and_swap

  1898. "

  1899. HAVE_LIST_CMDLINE="

  1900.     inline_asm

  1901.     symver

  1902.     x86asm

  1903. "

  1904. 

  1905. HAVE_LIST_PUB="

  1906.     bigendian

  1907.     fast_unaligned

  1908. "

  1909. 

  1910. HEADERS_LIST="

  1911.     arpa_inet_h

  1912.     asm_types_h

  1913.     cdio_paranoia_h

  1914.     cdio_paranoia_paranoia_h

  1915.     cuda_h

  1916.     dispatch_dispatch_h

  1917.     dev_bktr_ioctl_bt848_h

  1918.     dev_bktr_ioctl_meteor_h

  1919.     dev_ic_bt8xx_h

  1920.     dev_video_bktr_ioctl_bt848_h

  1921.     dev_video_meteor_ioctl_meteor_h

  1922.     direct_h

  1923.     dirent_h

  1924.     dxgidebug_h

  1925.     dxva_h

  1926.     ES2_gl_h

  1927.     gsm_h

  1928.     io_h

  1929.     machine_ioctl_bt848_h

  1930.     machine_ioctl_meteor_h

  1931.     malloc_h

  1932.     opencv2_core_core_c_h

  1933.     OpenGL_gl3_h

  1934.     poll_h

  1935.     sys_param_h

  1936.     sys_resource_h

  1937.     sys_select_h

  1938.     sys_soundcard_h

  1939.     sys_time_h

  1940.     sys_un_h

  1941.     sys_videoio_h

  1942.     termios_h

  1943.     udplite_h

  1944.     unistd_h

  1945.     valgrind_valgrind_h

  1946.     windows_h

  1947.     winsock2_h

  1948. "

  1949. 

  1950. INTRINSICS_LIST="

  1951.     intrinsics_neon

  1952. "

  1953. 

  1954. COMPLEX_FUNCS="

  1955.     cabs

  1956.     cexp

  1957. "

  1958. 

  1959. MATH_FUNCS="

  1960.     atanf

  1961.     atan2f

  1962.     cbrt

  1963.     cbrtf

  1964.     copysign

  1965.     cosf

  1966.     erf

  1967.     exp2

  1968.     exp2f

  1969.     expf

  1970.     hypot

  1971.     isfinite

  1972.     isinf

  1973.     isnan

  1974.     ldexpf

  1975.     llrint

  1976.     llrintf

  1977.     log2

  1978.     log2f

  1979.     log10f

  1980.     lrint

  1981.     lrintf

  1982.     powf

  1983.     rint

  1984.     round

  1985.     roundf

  1986.     sinf

  1987.     trunc

  1988.     truncf

  1989. "

  1990. 

  1991. SYSTEM_FEATURES="

  1992.     atomics_native

  1993.     dos_paths

  1994.     libc_msvcrt

  1995.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  1996.     section_data_rel_ro

  1997.     threads

  1998.     uwp

  1999.     winrt

  2000. "

  2001. 

  2002. SYSTEM_FUNCS="

  2003.     access

  2004.     aligned_malloc

  2005.     arc4random

  2006.     clock_gettime

  2007.     closesocket

  2008.     CommandLineToArgvW

  2009.     fcntl

  2010.     getaddrinfo

  2011.     gethrtime

  2012.     getopt

  2013.     GetProcessAffinityMask

  2014.     GetProcessMemoryInfo

  2015.     GetProcessTimes

  2016.     getrusage

  2017.     GetSystemTimeAsFileTime

  2018.     gettimeofday

  2019.     glob

  2020.     glXGetProcAddress

  2021.     gmtime_r

  2022.     inet_aton

  2023.     isatty

  2024.     kbhit

  2025.     localtime_r

  2026.     lstat

  2027.     lzo1x_999_compress

  2028.     mach_absolute_time

  2029.     MapViewOfFile

  2030.     memalign

  2031.     mkstemp

  2032.     mmap

  2033.     mprotect

  2034.     nanosleep

  2035.     PeekNamedPipe

  2036.     posix_memalign

  2037.     pthread_cancel

  2038.     sched_getaffinity

  2039.     SecItemImport

  2040.     SetConsoleTextAttribute

  2041.     SetConsoleCtrlHandler

  2042.     setmode

  2043.     setrlimit

  2044.     Sleep

  2045.     strerror_r

  2046.     sysconf

  2047.     sysctl

  2048.     usleep

  2049.     UTGetOSTypeFromString

  2050.     VirtualAlloc

  2051.     wglGetProcAddress

  2052. "

  2053. 

  2054. SYSTEM_LIBRARIES="

  2055.     vaapi_drm

  2056.     vaapi_x11

  2057.     vdpau_x11

  2058.     wincrypt

  2059. "

  2060. 

  2061. TOOLCHAIN_FEATURES="

  2062.     as_arch_directive

  2063.     as_fpu_directive

  2064.     as_func

  2065.     as_object_arch

  2066.     asm_mod_q

  2067.     blocks_extension

  2068.     ebp_available

  2069.     ebx_available

  2070.     gnu_as

  2071.     gnu_windres

  2072.     ibm_asm

  2073.     inline_asm_direct_symbol_refs

  2074.     inline_asm_labels

  2075.     inline_asm_nonlocal_labels

  2076.     pragma_deprecated

  2077.     rsync_contimeout

  2078.     symver_asm_label

  2079.     symver_gnu_asm

  2080.     vfp_args

  2081.     xform_asm

  2082.     xmm_clobbers

  2083. "

  2084. 

  2085. TYPES_LIST="

  2086.     CONDITION_VARIABLE_Ptr

  2087.     kCMVideoCodecType_HEVC

  2088.     socklen_t

  2089.     struct_addrinfo

  2090.     struct_group_source_req

  2091.     struct_ip_mreq_source

  2092.     struct_ipv6_mreq

  2093.     struct_msghdr_msg_flags

  2094.     struct_pollfd

  2095.     struct_rusage_ru_maxrss

  2096.     struct_sctp_event_subscribe

  2097.     struct_sockaddr_in6

  2098.     struct_sockaddr_sa_len

  2099.     struct_sockaddr_storage

  2100.     struct_stat_st_mtim_tv_nsec

  2101.     struct_v4l2_frmivalenum_discrete

  2102. "

  2103. 

  2104. HAVE_LIST="

  2105.     $ARCH_EXT_LIST

  2106.     $(add_suffix _external $ARCH_EXT_LIST)

  2107.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2108.     $ARCH_FEATURES

  2109.     $ATOMICS_LIST

  2110.     $BUILTIN_LIST

  2111.     $COMPLEX_FUNCS

  2112.     $HAVE_LIST_CMDLINE

  2113.     $HAVE_LIST_PUB

  2114.     $HEADERS_LIST

  2115.     $INTRINSICS_LIST

  2116.     $MATH_FUNCS

  2117.     $SYSTEM_FEATURES

  2118.     $SYSTEM_FUNCS

  2119.     $SYSTEM_LIBRARIES

  2120.     $THREADS_LIST

  2121.     $TOOLCHAIN_FEATURES

  2122.     $TYPES_LIST

  2123.     makeinfo

  2124.     makeinfo_html

  2125.     opencl_d3d11

  2126.     opencl_drm_arm

  2127.     opencl_dxva2

  2128.     opencl_vaapi_beignet

  2129.     opencl_vaapi_intel_media

  2130.     perl

  2131.     pod2man

  2132.     texi2html

  2133. "

  2134. 

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

  2136. CONFIG_EXTRA="

  2137.     aandcttables

  2138.     ac3dsp

  2139.     adts_header

  2140.     audio_frame_queue

  2141.     audiodsp

  2142.     blockdsp

  2143.     bswapdsp

  2144.     cabac

  2145.     cbs

  2146.     cbs_h264

  2147.     cbs_h265

  2148.     cbs_mpeg2

  2149.     dirac_parse

  2150.     dvprofile

  2151.     exif

  2152.     faandct

  2153.     faanidct

  2154.     fdctdsp

  2155.     flacdsp

  2156.     fmtconvert

  2157.     frame_thread_encoder

  2158.     g722dsp

  2159.     golomb

  2160.     gplv3

  2161.     h263dsp

  2162.     h264chroma

  2163.     h264dsp

  2164.     h264parse

  2165.     h264pred

  2166.     h264qpel

  2167.     hevcparse

  2168.     hpeldsp

  2169.     huffman

  2170.     huffyuvdsp

  2171.     huffyuvencdsp

  2172.     idctdsp

  2173.     iirfilter

  2174.     mdct15

  2175.     intrax8

  2176.     iso_media

  2177.     ividsp

  2178.     jpegtables

  2179.     lgplv3

  2180.     libx262

  2181.     llauddsp

  2182.     llviddsp

  2183.     llvidencdsp

  2184.     lpc

  2185.     lzf

  2186.     me_cmp

  2187.     mpeg_er

  2188.     mpegaudio

  2189.     mpegaudiodsp

  2190.     mpegaudioheader

  2191.     mpegvideo

  2192.     mpegvideoenc

  2193.     mss34dsp

  2194.     pixblockdsp

  2195.     qpeldsp

  2196.     qsv

  2197.     qsvdec

  2198.     qsvenc

  2199.     qsvvpp

  2200.     rangecoder

  2201.     riffdec

  2202.     riffenc

  2203.     rtpdec

  2204.     rtpenc_chain

  2205.     rv34dsp

  2206.     sinewin

  2207.     snappy

  2208.     srtp

  2209.     startcode

  2210.     texturedsp

  2211.     texturedspenc

  2212.     tpeldsp

  2213.     vaapi_1

  2214.     vaapi_encode

  2215.     vc1dsp

  2216.     videodsp

  2217.     vp3dsp

  2218.     vp56dsp

  2219.     vp8dsp

  2220.     wma_freqs

  2221.     wmv2dsp

  2222. "

  2223. 

  2224. CMDLINE_SELECT="

  2225.     $ARCH_EXT_LIST

  2226.     $CONFIG_LIST

  2227.     $HAVE_LIST_CMDLINE

  2228.     $THREADS_LIST

  2229.     asm

  2230.     cross_compile

  2231.     debug

  2232.     extra_warnings

  2233.     logging

  2234.     lto

  2235.     optimizations

  2236.     rpath

  2237.     stripping

  2238. "

  2239. 

  2240. PATHS_LIST="

  2241.     bindir

  2242.     datadir

  2243.     docdir

  2244.     incdir

  2245.     libdir

  2246.     mandir

  2247.     pkgconfigdir

  2248.     prefix

  2249.     shlibdir

  2250.     install_name_dir

  2251. "

  2252. 

  2253. CMDLINE_SET="

  2254.     $PATHS_LIST

  2255.     ar

  2256.     arch

  2257.     as

  2258.     assert_level

  2259.     build_suffix

  2260.     cc

  2261.     objcc

  2262.     cpu

  2263.     cross_prefix

  2264.     custom_allocator

  2265.     cxx

  2266.     dep_cc

  2267.     doxygen

  2268.     env

  2269.     extra_version

  2270.     gas

  2271.     host_cc

  2272.     host_cflags

  2273.     host_extralibs

  2274.     host_ld

  2275.     host_ldflags

  2276.     host_os

  2277.     ignore_tests

  2278.     install

  2279.     ld

  2280.     ln_s

  2281.     logfile

  2282.     malloc_prefix

  2283.     nm

  2284.     optflags

  2285.     nvccflags

  2286.     pkg_config

  2287.     pkg_config_flags

  2288.     progs_suffix

  2289.     random_seed

  2290.     ranlib

  2291.     samples

  2292.     strip

  2293.     sws_max_filter_size

  2294.     sysinclude

  2295.     sysroot

  2296.     target_exec

  2297.     target_os

  2298.     target_path

  2299.     target_samples

  2300.     tempprefix

  2301.     toolchain

  2302.     valgrind

  2303.     x86asmexe

  2304. "

  2305. 

  2306. CMDLINE_APPEND="

  2307.     extra_cflags

  2308.     extra_cxxflags

  2309.     extra_objcflags

  2310.     host_cppflags

  2311. "

  2312. 

  2313. # code dependency declarations

  2314. 

  2315. # architecture extensions

  2316. 

  2317. armv5te_deps="arm"

  2318. armv6_deps="arm"

  2319. armv6t2_deps="arm"

  2320. armv8_deps="aarch64"

  2321. neon_deps_any="aarch64 arm"

  2322. intrinsics_neon_deps="neon"

  2323. vfp_deps_any="aarch64 arm"

  2324. vfpv3_deps="vfp"

  2325. setend_deps="arm"

  2326. 

  2327. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2328. 

  2329. altivec_deps="ppc"

  2330. dcbzl_deps="ppc"

  2331. ldbrx_deps="ppc"

  2332. ppc4xx_deps="ppc"

  2333. vsx_deps="altivec"

  2334. power8_deps="vsx"

  2335. 

  2336. loongson2_deps="mips"

  2337. loongson3_deps="mips"

  2338. mips32r2_deps="mips"

  2339. mips32r5_deps="mips"

  2340. mips32r6_deps="mips"

  2341. mips64r2_deps="mips"

  2342. mips64r6_deps="mips"

  2343. mipsfpu_deps="mips"

  2344. mipsdsp_deps="mips"

  2345. mipsdspr2_deps="mips"

  2346. mmi_deps="mips"

  2347. msa_deps="mipsfpu"

  2348. 

  2349. cpunop_deps="i686"

  2350. x86_64_select="i686"

  2351. x86_64_suggest="fast_cmov"

  2352. 

  2353. amd3dnow_deps="mmx"

  2354. amd3dnowext_deps="amd3dnow"

  2355. i686_deps="x86"

  2356. mmx_deps="x86"

  2357. mmxext_deps="mmx"

  2358. sse_deps="mmxext"

  2359. sse2_deps="sse"

  2360. sse3_deps="sse2"

  2361. ssse3_deps="sse3"

  2362. sse4_deps="ssse3"

  2363. sse42_deps="sse4"

  2364. aesni_deps="sse42"

  2365. avx_deps="sse42"

  2366. xop_deps="avx"

  2367. fma3_deps="avx"

  2368. fma4_deps="avx"

  2369. avx2_deps="avx"

  2370. 

  2371. mmx_external_deps="x86asm"

  2372. mmx_inline_deps="inline_asm x86"

  2373. mmx_suggest="mmx_external mmx_inline"

  2374. 

  2375. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2376.     eval dep=\$${ext}_deps

  2377.     eval ${ext}_external_deps='"${dep}_external"'

  2378.     eval ${ext}_inline_deps='"${dep}_inline"'

  2379.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2380. done

  2381. 

  2382. aligned_stack_if_any="aarch64 ppc x86"

  2383. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2384. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2385. fast_unaligned_if_any="aarch64 ppc x86"

  2386. simd_align_16_if_any="altivec neon sse"

  2387. simd_align_32_if_any="avx"

  2388. 

  2389. # system capabilities

  2390. symver_if_any="symver_asm_label symver_gnu_asm"

  2391. valgrind_backtrace_conflict="optimizations"

  2392. valgrind_backtrace_deps="valgrind_valgrind_h"

  2393. 

  2394. # threading support

  2395. atomics_gcc_if="sync_val_compare_and_swap"

  2396. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2397. atomics_win32_if="MemoryBarrier"

  2398. atomics_native_if_any="$ATOMICS_LIST"

  2399. w32threads_deps="atomics_native"

  2400. threads_if_any="$THREADS_LIST"

  2401. 

  2402. # subsystems

  2403. cbs_h264_select="cbs golomb"

  2404. cbs_h265_select="cbs golomb"

  2405. cbs_mpeg2_select="cbs"

  2406. dct_select="rdft"

  2407. dirac_parse_select="golomb"

  2408. error_resilience_select="me_cmp"

  2409. faandct_deps="faan"

  2410. faandct_select="fdctdsp"

  2411. faanidct_deps="faan"

  2412. faanidct_select="idctdsp"

  2413. h264dsp_select="startcode"

  2414. hevcparse_select="golomb"

  2415. frame_thread_encoder_deps="encoders threads"

  2416. intrax8_select="blockdsp idctdsp"

  2417. mdct_select="fft"

  2418. mdct15_select="fft"

  2419. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2420. mpeg_er_select="error_resilience"

  2421. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2422. mpegaudiodsp_select="dct"

  2423. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2424. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2425. vc1dsp_select="h264chroma qpeldsp startcode"

  2426. rdft_select="fft"

  2427. 

  2428. # decoders / encoders

  2429. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2430. aac_fixed_decoder_select="mdct sinewin"

  2431. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2432. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2433. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2434. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2435. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2436. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2437. adpcm_g722_decoder_select="g722dsp"

  2438. adpcm_g722_encoder_select="g722dsp"

  2439. aic_decoder_select="golomb idctdsp"

  2440. alac_encoder_select="lpc"

  2441. als_decoder_select="bswapdsp"

  2442. amrnb_decoder_select="lsp"

  2443. amrwb_decoder_select="lsp"

  2444. amv_decoder_select="sp5x_decoder exif"

  2445. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2446. ape_decoder_select="bswapdsp llauddsp"

  2447. apng_decoder_deps="zlib"

  2448. apng_encoder_deps="zlib"

  2449. apng_encoder_select="llvidencdsp"

  2450. aptx_decoder_select="audio_frame_queue"

  2451. aptx_encoder_select="audio_frame_queue"

  2452. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2453. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2454. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2455. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2456. atrac1_decoder_select="mdct sinewin"

  2457. atrac3_decoder_select="mdct"

  2458. atrac3p_decoder_select="mdct sinewin"

  2459. avrn_decoder_select="exif jpegtables"

  2460. bink_decoder_select="blockdsp hpeldsp"

  2461. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2462. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2463. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2464. clearvideo_decoder_select="idctdsp"

  2465. cllc_decoder_select="bswapdsp"

  2466. comfortnoise_encoder_select="lpc"

  2467. cook_decoder_select="audiodsp mdct sinewin"

  2468. cscd_decoder_select="lzo"

  2469. cscd_decoder_suggest="zlib"

  2470. dca_decoder_select="mdct"

  2471. dds_decoder_select="texturedsp"

  2472. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2473. dnxhd_decoder_select="blockdsp idctdsp"

  2474. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2475. dolby_e_decoder_select="mdct"

  2476. dvvideo_decoder_select="dvprofile idctdsp"

  2477. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2478. dxa_decoder_deps="zlib"

  2479. dxv_decoder_select="lzf texturedsp"

  2480. eac3_decoder_select="ac3_decoder"

  2481. eac3_encoder_select="ac3_encoder"

  2482. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2483. eatgq_decoder_select="aandcttables"

  2484. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2485. exr_decoder_deps="zlib"

  2486. ffv1_decoder_select="rangecoder"

  2487. ffv1_encoder_select="rangecoder"

  2488. ffvhuff_decoder_select="huffyuv_decoder"

  2489. ffvhuff_encoder_select="huffyuv_encoder"

  2490. fic_decoder_select="golomb"

  2491. flac_decoder_select="flacdsp"

  2492. flac_encoder_select="bswapdsp flacdsp lpc"

  2493. flashsv2_decoder_deps="zlib"

  2494. flashsv2_encoder_deps="zlib"

  2495. flashsv_decoder_deps="zlib"

  2496. flashsv_encoder_deps="zlib"

  2497. flv_decoder_select="h263_decoder"

  2498. flv_encoder_select="h263_encoder"

  2499. fourxm_decoder_select="blockdsp bswapdsp"

  2500. fraps_decoder_select="bswapdsp huffman"

  2501. g2m_decoder_deps="zlib"

  2502. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2503. g729_decoder_select="audiodsp"

  2504. h261_decoder_select="mpegvideo"

  2505. h261_encoder_select="aandcttables mpegvideoenc"

  2506. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2507. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2508. h263i_decoder_select="h263_decoder"

  2509. h263p_decoder_select="h263_decoder"

  2510. h263p_encoder_select="h263_encoder"

  2511. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2512. h264_decoder_suggest="error_resilience"

  2513. hap_decoder_select="snappy texturedsp"

  2514. hap_encoder_deps="libsnappy"

  2515. hap_encoder_select="texturedspenc"

  2516. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2517. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2518. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2519. iac_decoder_select="imc_decoder"

  2520. imc_decoder_select="bswapdsp fft mdct sinewin"

  2521. indeo3_decoder_select="hpeldsp"

  2522. indeo4_decoder_select="ividsp"

  2523. indeo5_decoder_select="ividsp"

  2524. interplay_video_decoder_select="hpeldsp"

  2525. jpegls_decoder_select="mjpeg_decoder"

  2526. jv_decoder_select="blockdsp"

  2527. lagarith_decoder_select="llviddsp"

  2528. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2529. magicyuv_decoder_select="llviddsp"

  2530. magicyuv_encoder_select="llvidencdsp"

  2531. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2532. metasound_decoder_select="lsp mdct sinewin"

  2533. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2534. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2535. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2536. mjpegb_decoder_select="mjpeg_decoder"

  2537. mlp_decoder_select="mlp_parser"

  2538. mlp_encoder_select="lpc"

  2539. motionpixels_decoder_select="bswapdsp"

  2540. mp1_decoder_select="mpegaudio"

  2541. mp1float_decoder_select="mpegaudio"

  2542. mp2_decoder_select="mpegaudio"

  2543. mp2float_decoder_select="mpegaudio"

  2544. mp3_decoder_select="mpegaudio"

  2545. mp3adu_decoder_select="mpegaudio"

  2546. mp3adufloat_decoder_select="mpegaudio"

  2547. mp3float_decoder_select="mpegaudio"

  2548. mp3on4_decoder_select="mpegaudio"

  2549. mp3on4float_decoder_select="mpegaudio"

  2550. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2551. mpc8_decoder_select="mpegaudiodsp"

  2552. mpegvideo_decoder_select="mpegvideo"

  2553. mpeg1video_decoder_select="mpegvideo"

  2554. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2555. mpeg2video_decoder_select="mpegvideo"

  2556. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2557. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2558. mpeg4_encoder_select="h263_encoder"

  2559. msa1_decoder_select="mss34dsp"

  2560. mscc_decoder_deps="zlib"

  2561. msmpeg4v1_decoder_select="h263_decoder"

  2562. msmpeg4v2_decoder_select="h263_decoder"

  2563. msmpeg4v2_encoder_select="h263_encoder"

  2564. msmpeg4v3_decoder_select="h263_decoder"

  2565. msmpeg4v3_encoder_select="h263_encoder"

  2566. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2567. mts2_decoder_select="mss34dsp"

  2568. mxpeg_decoder_select="mjpeg_decoder"

  2569. nellymoser_decoder_select="mdct sinewin"

  2570. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2571. nuv_decoder_select="idctdsp lzo"

  2572. on2avc_decoder_select="mdct"

  2573. opus_decoder_deps="swresample"

  2574. opus_decoder_select="mdct15"

  2575. opus_encoder_select="audio_frame_queue mdct15"

  2576. png_decoder_deps="zlib"

  2577. png_encoder_deps="zlib"

  2578. png_encoder_select="llvidencdsp"

  2579. prores_decoder_select="blockdsp idctdsp"

  2580. prores_encoder_select="fdctdsp"

  2581. qcelp_decoder_select="lsp"

  2582. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2583. ra_144_decoder_select="audiodsp"

  2584. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2585. ralf_decoder_select="golomb"

  2586. rawvideo_decoder_select="bswapdsp"

  2587. rscc_decoder_deps="zlib"

  2588. rtjpeg_decoder_select="me_cmp"

  2589. rv10_decoder_select="h263_decoder"

  2590. rv10_encoder_select="h263_encoder"

  2591. rv20_decoder_select="h263_decoder"

  2592. rv20_encoder_select="h263_encoder"

  2593. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2594. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2595. screenpresso_decoder_deps="zlib"

  2596. shorten_decoder_select="bswapdsp"

  2597. sipr_decoder_select="lsp"

  2598. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2599. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2600. sonic_decoder_select="golomb rangecoder"

  2601. sonic_encoder_select="golomb rangecoder"

  2602. sonic_ls_encoder_select="golomb rangecoder"

  2603. sp5x_decoder_select="mjpeg_decoder"

  2604. srgc_decoder_deps="zlib"

  2605. svq1_decoder_select="hpeldsp"

  2606. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2607. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2608. svq3_decoder_suggest="zlib"

  2609. tak_decoder_select="audiodsp"

  2610. tdsc_decoder_deps="zlib"

  2611. tdsc_decoder_select="mjpeg_decoder"

  2612. theora_decoder_select="vp3_decoder"

  2613. thp_decoder_select="mjpeg_decoder"

  2614. tiff_decoder_suggest="zlib lzma"

  2615. tiff_encoder_suggest="zlib"

  2616. truehd_decoder_select="mlp_parser"

  2617. truehd_encoder_select="lpc"

  2618. truemotion2_decoder_select="bswapdsp"

  2619. truespeech_decoder_select="bswapdsp"

  2620. tscc_decoder_deps="zlib"

  2621. twinvq_decoder_select="mdct lsp sinewin"

  2622. txd_decoder_select="texturedsp"

  2623. utvideo_decoder_select="bswapdsp llviddsp"

  2624. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2625. vble_decoder_select="llviddsp"

  2626. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2627. vc1image_decoder_select="vc1_decoder"

  2628. vorbis_decoder_select="mdct"

  2629. vorbis_encoder_select="mdct"

  2630. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2631. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2632. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2633. vp6a_decoder_select="vp6_decoder"

  2634. vp6f_decoder_select="vp6_decoder"

  2635. vp7_decoder_select="h264pred videodsp vp8dsp"

  2636. vp8_decoder_select="h264pred videodsp vp8dsp"

  2637. vp9_decoder_select="videodsp vp9_parser"

  2638. webp_decoder_select="vp8_decoder exif"

  2639. wmalossless_decoder_select="llauddsp"

  2640. wmapro_decoder_select="mdct sinewin wma_freqs"

  2641. wmav1_decoder_select="mdct sinewin wma_freqs"

  2642. wmav1_encoder_select="mdct sinewin wma_freqs"

  2643. wmav2_decoder_select="mdct sinewin wma_freqs"

  2644. wmav2_encoder_select="mdct sinewin wma_freqs"

  2645. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2646. wmv1_decoder_select="h263_decoder"

  2647. wmv1_encoder_select="h263_encoder"

  2648. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2649. wmv2_encoder_select="h263_encoder wmv2dsp"

  2650. wmv3_decoder_select="vc1_decoder"

  2651. wmv3image_decoder_select="wmv3_decoder"

  2652. xma1_decoder_select="wmapro_decoder"

  2653. xma2_decoder_select="wmapro_decoder"

  2654. zerocodec_decoder_deps="zlib"

  2655. zlib_decoder_deps="zlib"

  2656. zlib_encoder_deps="zlib"

  2657. zmbv_decoder_deps="zlib"

  2658. zmbv_encoder_deps="zlib"

  2659. 

  2660. # hardware accelerators

  2661. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2662. cuda_deps_any="libdl LoadLibrary"

  2663. cuvid_deps="cuda"

  2664. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2665. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2666. nvdec_deps="cuda"

  2667. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2668. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2669. xvmc_deps="X11_extensions_XvMClib_h"

  2670. 

  2671. h263_vaapi_hwaccel_deps="vaapi"

  2672. h263_vaapi_hwaccel_select="h263_decoder"

  2673. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2674. h263_videotoolbox_hwaccel_select="h263_decoder"

  2675. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2676. h264_d3d11va_hwaccel_deps="d3d11va"

  2677. h264_d3d11va_hwaccel_select="h264_decoder"

  2678. h264_d3d11va2_hwaccel_deps="d3d11va"

  2679. h264_d3d11va2_hwaccel_select="h264_decoder"

  2680. h264_dxva2_hwaccel_deps="dxva2"

  2681. h264_dxva2_hwaccel_select="h264_decoder"

  2682. h264_mediacodec_hwaccel_deps="mediacodec"

  2683. h264_mmal_hwaccel_deps="mmal"

  2684. h264_nvdec_hwaccel_deps="nvdec"

  2685. h264_nvdec_hwaccel_select="h264_decoder"

  2686. h264_qsv_hwaccel_deps="libmfx"

  2687. h264_vaapi_hwaccel_deps="vaapi"

  2688. h264_vaapi_hwaccel_select="h264_decoder"

  2689. h264_vdpau_hwaccel_deps="vdpau"

  2690. h264_vdpau_hwaccel_select="h264_decoder"

  2691. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2692. h264_videotoolbox_hwaccel_select="h264_decoder"

  2693. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2694. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2695. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2696. hevc_mediacodec_hwaccel_deps="mediacodec"

  2697. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2698. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2699. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2700. hevc_dxva2_hwaccel_select="hevc_decoder"

  2701. hevc_nvdec_hwaccel_deps="nvdec"

  2702. hevc_nvdec_hwaccel_select="hevc_decoder"

  2703. hevc_qsv_hwaccel_deps="libmfx"

  2704. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2705. hevc_vaapi_hwaccel_select="hevc_decoder"

  2706. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2707. hevc_vdpau_hwaccel_select="hevc_decoder"

  2708. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2709. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2710. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2711. mpeg_xvmc_hwaccel_deps="xvmc"

  2712. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2713. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2714. mpeg1_nvdec_hwaccel_deps="nvdec"

  2715. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2716. mpeg1_vdpau_hwaccel_deps="vdpau"

  2717. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2718. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2719. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2720. mpeg1_xvmc_hwaccel_deps="xvmc"

  2721. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2722. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2723. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2724. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2725. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2726. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2727. mpeg2_dxva2_hwaccel_deps="dxva2"

  2728. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2729. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2730. mpeg2_mmal_hwaccel_deps="mmal"

  2731. mpeg2_nvdec_hwaccel_deps="nvdec"

  2732. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2733. mpeg2_qsv_hwaccel_deps="libmfx"

  2734. mpeg2_vaapi_hwaccel_deps="vaapi"

  2735. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2736. mpeg2_vdpau_hwaccel_deps="vdpau"

  2737. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2738. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2739. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2740. mpeg2_xvmc_hwaccel_deps="xvmc"

  2741. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2742. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2743. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2744. mpeg4_mmal_hwaccel_deps="mmal"

  2745. mpeg4_nvdec_hwaccel_deps="nvdec"

  2746. mpeg4_nvdec_hwaccel_select="mpeg4_decoder"

  2747. mpeg4_vaapi_hwaccel_deps="vaapi"

  2748. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2749. mpeg4_vdpau_hwaccel_deps="vdpau"

  2750. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2751. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2752. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2753. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2754. vc1_d3d11va_hwaccel_deps="d3d11va"

  2755. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2756. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2757. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2758. vc1_dxva2_hwaccel_deps="dxva2"

  2759. vc1_dxva2_hwaccel_select="vc1_decoder"

  2760. vc1_mmal_hwaccel_deps="mmal"

  2761. vc1_nvdec_hwaccel_deps="nvdec"

  2762. vc1_nvdec_hwaccel_select="vc1_decoder"

  2763. vc1_qsv_hwaccel_deps="libmfx"

  2764. vc1_vaapi_hwaccel_deps="vaapi"

  2765. vc1_vaapi_hwaccel_select="vc1_decoder"

  2766. vc1_vdpau_hwaccel_deps="vdpau"

  2767. vc1_vdpau_hwaccel_select="vc1_decoder"

  2768. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2769. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2770. vp8_mediacodec_hwaccel_deps="mediacodec"

  2771. vp8_qsv_hwaccel_deps="libmfx"

  2772. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2773. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2774. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2775. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2776. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2777. vp9_dxva2_hwaccel_select="vp9_decoder"

  2778. vp9_mediacodec_hwaccel_deps="mediacodec"

  2779. vp9_nvdec_hwaccel_deps="nvdec"

  2780. vp9_nvdec_hwaccel_select="vp9_decoder"

  2781. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2782. vp9_vaapi_hwaccel_select="vp9_decoder"

  2783. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2784. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2785. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2786. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2787. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2788. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2789. 

  2790. # hardware-accelerated codecs

  2791. omx_deps="libdl pthreads"

  2792. omx_rpi_select="omx"

  2793. qsv_deps="libmfx"

  2794. qsvdec_select="qsv"

  2795. qsvenc_select="qsv"

  2796. qsvvpp_select="qsv"

  2797. vaapi_encode_deps="vaapi"

  2798. v4l2_m2m_deps_any="linux_videodev2_h"

  2799. 

  2800. hwupload_cuda_filter_deps="cuda"

  2801. scale_npp_filter_deps="cuda libnpp"

  2802. scale_cuda_filter_deps="cuda_sdk"

  2803. thumbnail_cuda_filter_deps="cuda_sdk"

  2804. 

  2805. nvenc_deps="cuda"

  2806. nvenc_deps_any="libdl LoadLibrary"

  2807. nvenc_encoder_deps="nvenc"

  2808. 

  2809. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2810. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2811. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2812. h264_cuvid_decoder_deps="cuvid"

  2813. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2814. h264_mediacodec_decoder_deps="mediacodec"

  2815. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2816. h264_mmal_decoder_deps="mmal"

  2817. h264_nvenc_encoder_deps="nvenc"

  2818. h264_omx_encoder_deps="omx"

  2819. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2820. h264_qsv_encoder_select="qsvenc"

  2821. h264_rkmpp_decoder_deps="rkmpp"

  2822. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2823. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2824. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2825. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2826. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2827. hevc_cuvid_decoder_deps="cuvid"

  2828. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2829. hevc_mediacodec_decoder_deps="mediacodec"

  2830. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2831. hevc_nvenc_encoder_deps="nvenc"

  2832. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2833. hevc_qsv_encoder_select="hevcparse qsvenc"

  2834. hevc_rkmpp_decoder_deps="rkmpp"

  2835. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2836. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2837. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2838. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2839. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2840. mjpeg_cuvid_decoder_deps="cuvid"

  2841. mjpeg_qsv_encoder_deps="libmfx"

  2842. mjpeg_qsv_encoder_select="qsvenc"

  2843. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2844. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2845. mpeg1_cuvid_decoder_deps="cuvid"

  2846. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2847. mpeg2_crystalhd_decoder_select="crystalhd"

  2848. mpeg2_cuvid_decoder_deps="cuvid"

  2849. mpeg2_mmal_decoder_deps="mmal"

  2850. mpeg2_mediacodec_decoder_deps="mediacodec"

  2851. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2852. mpeg2_qsv_encoder_select="qsvenc"

  2853. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2854. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2855. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2856. mpeg4_crystalhd_decoder_select="crystalhd"

  2857. mpeg4_cuvid_decoder_deps="cuvid"

  2858. mpeg4_mediacodec_decoder_deps="mediacodec"

  2859. mpeg4_mmal_decoder_deps="mmal"

  2860. mpeg4_omx_encoder_deps="omx"

  2861. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2862. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2863. msmpeg4_crystalhd_decoder_select="crystalhd"

  2864. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2865. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2866. vc1_crystalhd_decoder_select="crystalhd"

  2867. vc1_cuvid_decoder_deps="cuvid"

  2868. vc1_mmal_decoder_deps="mmal"

  2869. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2870. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2871. vp8_cuvid_decoder_deps="cuvid"

  2872. vp8_mediacodec_decoder_deps="mediacodec"

  2873. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2874. vp8_rkmpp_decoder_deps="rkmpp"

  2875. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2876. vp8_vaapi_encoder_select="vaapi_encode"

  2877. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2878. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2879. vp9_cuvid_decoder_deps="cuvid"

  2880. vp9_mediacodec_decoder_deps="mediacodec"

  2881. vp9_rkmpp_decoder_deps="rkmpp"

  2882. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2883. vp9_vaapi_encoder_select="vaapi_encode"

  2884. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2885. wmv3_crystalhd_decoder_select="crystalhd"

  2886. 

  2887. # parsers

  2888. aac_parser_select="adts_header"

  2889. h264_parser_select="golomb h264dsp h264parse"

  2890. hevc_parser_select="hevcparse"

  2891. mpegaudio_parser_select="mpegaudioheader"

  2892. mpegvideo_parser_select="mpegvideo"

  2893. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2894. vc1_parser_select="vc1dsp"

  2895. 

  2896. # bitstream_filters

  2897. aac_adtstoasc_bsf_select="adts_header"

  2898. h264_metadata_bsf_select="cbs_h264"

  2899. h264_redundant_pps_bsf_select="cbs_h264"

  2900. hevc_metadata_bsf_select="cbs_h265"

  2901. mjpeg2jpeg_bsf_select="jpegtables"

  2902. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2903. trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"

  2904. 

  2905. # external libraries

  2906. aac_at_decoder_deps="audiotoolbox"

  2907. ac3_at_decoder_deps="audiotoolbox"

  2908. ac3_at_decoder_select="ac3_parser"

  2909. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2910. alac_at_decoder_deps="audiotoolbox"

  2911. amr_nb_at_decoder_deps="audiotoolbox"

  2912. avisynth_deps_any="libdl LoadLibrary"

  2913. avisynth_demuxer_deps="avisynth"

  2914. avisynth_demuxer_select="riffdec"

  2915. eac3_at_decoder_deps="audiotoolbox"

  2916. eac3_at_decoder_select="ac3_parser"

  2917. gsm_ms_at_decoder_deps="audiotoolbox"

  2918. ilbc_at_decoder_deps="audiotoolbox"

  2919. mp1_at_decoder_deps="audiotoolbox"

  2920. mp2_at_decoder_deps="audiotoolbox"

  2921. mp3_at_decoder_deps="audiotoolbox"

  2922. mp1_at_decoder_select="mpegaudioheader"

  2923. mp2_at_decoder_select="mpegaudioheader"

  2924. mp3_at_decoder_select="mpegaudioheader"

  2925. pcm_alaw_at_decoder_deps="audiotoolbox"

  2926. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2927. qdmc_at_decoder_deps="audiotoolbox"

  2928. qdm2_at_decoder_deps="audiotoolbox"

  2929. aac_at_encoder_deps="audiotoolbox"

  2930. aac_at_encoder_select="audio_frame_queue"

  2931. alac_at_encoder_deps="audiotoolbox"

  2932. alac_at_encoder_select="audio_frame_queue"

  2933. ilbc_at_encoder_deps="audiotoolbox"

  2934. ilbc_at_encoder_select="audio_frame_queue"

  2935. pcm_alaw_at_encoder_deps="audiotoolbox"

  2936. pcm_alaw_at_encoder_select="audio_frame_queue"

  2937. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2938. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2939. chromaprint_muxer_deps="chromaprint"

  2940. h264_videotoolbox_encoder_deps="pthreads"

  2941. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  2942. hevc_videotoolbox_encoder_deps="pthreads"

  2943. hevc_videotoolbox_encoder_select="videotoolbox_encoder"

  2944. libcelt_decoder_deps="libcelt"

  2945. libfdk_aac_decoder_deps="libfdk_aac"

  2946. libfdk_aac_encoder_deps="libfdk_aac"

  2947. libfdk_aac_encoder_select="audio_frame_queue"

  2948. libgme_demuxer_deps="libgme"

  2949. libgsm_decoder_deps="libgsm"

  2950. libgsm_encoder_deps="libgsm"

  2951. libgsm_ms_decoder_deps="libgsm"

  2952. libgsm_ms_encoder_deps="libgsm"

  2953. libilbc_decoder_deps="libilbc"

  2954. libilbc_encoder_deps="libilbc"

  2955. libkvazaar_encoder_deps="libkvazaar"

  2956. libmodplug_demuxer_deps="libmodplug"

  2957. libmp3lame_encoder_deps="libmp3lame"

  2958. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2959. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2960. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2961. libopencore_amrnb_encoder_select="audio_frame_queue"

  2962. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2963. libopenh264_decoder_deps="libopenh264"

  2964. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2965. libopenh264_encoder_deps="libopenh264"

  2966. libopenjpeg_decoder_deps="libopenjpeg"

  2967. libopenjpeg_encoder_deps="libopenjpeg"

  2968. libopenmpt_demuxer_deps="libopenmpt"

  2969. libopus_decoder_deps="libopus"

  2970. libopus_encoder_deps="libopus"

  2971. libopus_encoder_select="audio_frame_queue"

  2972. librsvg_decoder_deps="librsvg"

  2973. libshine_encoder_deps="libshine"

  2974. libshine_encoder_select="audio_frame_queue"

  2975. libspeex_decoder_deps="libspeex"

  2976. libspeex_encoder_deps="libspeex"

  2977. libspeex_encoder_select="audio_frame_queue"

  2978. libtheora_encoder_deps="libtheora"

  2979. libtwolame_encoder_deps="libtwolame"

  2980. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2981. libvorbis_decoder_deps="libvorbis"

  2982. libvorbis_encoder_deps="libvorbis libvorbisenc"

  2983. libvorbis_encoder_select="audio_frame_queue"

  2984. libvpx_vp8_decoder_deps="libvpx"

  2985. libvpx_vp8_encoder_deps="libvpx"

  2986. libvpx_vp9_decoder_deps="libvpx"

  2987. libvpx_vp9_encoder_deps="libvpx"

  2988. libwavpack_encoder_deps="libwavpack"

  2989. libwavpack_encoder_select="audio_frame_queue"

  2990. libwebp_encoder_deps="libwebp"

  2991. libwebp_anim_encoder_deps="libwebp"

  2992. libx262_encoder_deps="libx262"

  2993. libx264_encoder_deps="libx264"

  2994. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2995. libx264rgb_encoder_select="libx264_encoder"

  2996. libx265_encoder_deps="libx265"

  2997. libxavs_encoder_deps="libxavs"

  2998. libxvid_encoder_deps="libxvid"

  2999. libzvbi_teletext_decoder_deps="libzvbi"

  3000. videotoolbox_suggest="coreservices"

  3001. videotoolbox_deps="corefoundation coremedia corevideo"

  3002. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  3003. 

  3004. # demuxers / muxers

  3005. ac3_demuxer_select="ac3_parser"

  3006. aiff_muxer_select="iso_media"

  3007. asf_demuxer_select="riffdec"

  3008. asf_o_demuxer_select="riffdec"

  3009. asf_muxer_select="riffenc"

  3010. asf_stream_muxer_select="asf_muxer"

  3011. avi_demuxer_select="iso_media riffdec exif"

  3012. avi_muxer_select="riffenc"

  3013. caf_demuxer_select="iso_media riffdec"

  3014. caf_muxer_select="iso_media"

  3015. dash_muxer_select="mp4_muxer"

  3016. dash_demuxer_deps="libxml2"

  3017. dirac_demuxer_select="dirac_parser"

  3018. dts_demuxer_select="dca_parser"

  3019. dtshd_demuxer_select="dca_parser"

  3020. dv_demuxer_select="dvprofile"

  3021. dv_muxer_select="dvprofile"

  3022. dxa_demuxer_select="riffdec"

  3023. eac3_demuxer_select="ac3_parser"

  3024. f4v_muxer_select="mov_muxer"

  3025. fifo_muxer_deps="threads"

  3026. flac_demuxer_select="flac_parser"

  3027. hds_muxer_select="flv_muxer"

  3028. hls_muxer_select="mpegts_muxer"

  3029. hls_muxer_suggest="gcrypt openssl"

  3030. image2_alias_pix_demuxer_select="image2_demuxer"

  3031. image2_brender_pix_demuxer_select="image2_demuxer"

  3032. ipod_muxer_select="mov_muxer"

  3033. ismv_muxer_select="mov_muxer"

  3034. matroska_audio_muxer_select="matroska_muxer"

  3035. matroska_demuxer_select="iso_media riffdec"

  3036. matroska_demuxer_suggest="bzlib lzo zlib"

  3037. matroska_muxer_select="iso_media riffenc"

  3038. mmf_muxer_select="riffenc"

  3039. mov_demuxer_select="iso_media riffdec"

  3040. mov_demuxer_suggest="zlib"

  3041. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3042. mp3_demuxer_select="mpegaudio_parser"

  3043. mp3_muxer_select="mpegaudioheader"

  3044. mp4_muxer_select="mov_muxer"

  3045. mpegts_demuxer_select="iso_media"

  3046. mpegts_muxer_select="adts_muxer latm_muxer"

  3047. mpegtsraw_demuxer_select="mpegts_demuxer"

  3048. mxf_d10_muxer_select="mxf_muxer"

  3049. mxf_opatom_muxer_select="mxf_muxer"

  3050. nut_muxer_select="riffenc"

  3051. nuv_demuxer_select="riffdec"

  3052. oga_muxer_select="ogg_muxer"

  3053. ogg_demuxer_select="dirac_parse"

  3054. ogv_muxer_select="ogg_muxer"

  3055. opus_muxer_select="ogg_muxer"

  3056. psp_muxer_select="mov_muxer"

  3057. rtp_demuxer_select="sdp_demuxer"

  3058. rtp_muxer_select="golomb"

  3059. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3060. rtsp_demuxer_select="http_protocol rtpdec"

  3061. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3062. sap_demuxer_select="sdp_demuxer"

  3063. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3064. sdp_demuxer_select="rtpdec"

  3065. smoothstreaming_muxer_select="ismv_muxer"

  3066. spdif_demuxer_select="adts_header"

  3067. spdif_muxer_select="adts_header"

  3068. spx_muxer_select="ogg_muxer"

  3069. swf_demuxer_suggest="zlib"

  3070. tak_demuxer_select="tak_parser"

  3071. tg2_muxer_select="mov_muxer"

  3072. tgp_muxer_select="mov_muxer"

  3073. vobsub_demuxer_select="mpegps_demuxer"

  3074. w64_demuxer_select="wav_demuxer"

  3075. w64_muxer_select="wav_muxer"

  3076. wav_demuxer_select="riffdec"

  3077. wav_muxer_select="riffenc"

  3078. webm_muxer_select="iso_media riffenc"

  3079. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3080. wtv_demuxer_select="mpegts_demuxer riffdec"

  3081. wtv_muxer_select="mpegts_muxer riffenc"

  3082. xmv_demuxer_select="riffdec"

  3083. xwma_demuxer_select="riffdec"

  3084. 

  3085. # indevs / outdevs

  3086. alsa_indev_deps="alsa"

  3087. alsa_outdev_deps="alsa"

  3088. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3089. avfoundation_indev_suggest="coregraphics applicationservices"

  3090. avfoundation_indev_extralibs="-framework Foundation"

  3091. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3092. caca_outdev_deps="libcaca"

  3093. decklink_deps_any="libdl LoadLibrary"

  3094. decklink_indev_deps="decklink threads"

  3095. decklink_indev_extralibs="-lstdc++"

  3096. decklink_outdev_deps="decklink threads"

  3097. decklink_outdev_extralibs="-lstdc++"

  3098. libndi_newtek_indev_deps="libndi_newtek"

  3099. libndi_newtek_indev_extralibs="-lndi"

  3100. libndi_newtek_outdev_deps="libndi_newtek"

  3101. libndi_newtek_outdev_extralibs="-lndi"

  3102. dshow_indev_deps="IBaseFilter"

  3103. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3104. fbdev_indev_deps="linux_fb_h"

  3105. fbdev_outdev_deps="linux_fb_h"

  3106. gdigrab_indev_deps="CreateDIBSection"

  3107. gdigrab_indev_extralibs="-lgdi32"

  3108. gdigrab_indev_select="bmp_decoder"

  3109. iec61883_indev_deps="libiec61883"

  3110. jack_indev_deps="libjack"

  3111. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3112. kmsgrab_indev_deps="libdrm"

  3113. lavfi_indev_deps="avfilter"

  3114. libcdio_indev_deps="libcdio"

  3115. libdc1394_indev_deps="libdc1394"

  3116. openal_indev_deps="openal"

  3117. opengl_outdev_deps="opengl"

  3118. oss_indev_deps_any="sys_soundcard_h"

  3119. oss_outdev_deps_any="sys_soundcard_h"

  3120. pulse_indev_deps="libpulse"

  3121. pulse_outdev_deps="libpulse"

  3122. sdl2_outdev_deps="sdl2"

  3123. sndio_indev_deps="sndio"

  3124. sndio_outdev_deps="sndio"

  3125. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3126. v4l2_indev_suggest="libv4l2"

  3127. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3128. v4l2_outdev_suggest="libv4l2"

  3129. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3130. xcbgrab_indev_deps="libxcb"

  3131. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3132. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3133. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3134. 

  3135. # protocols

  3136. async_protocol_deps="threads"

  3137. bluray_protocol_deps="libbluray"

  3138. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3139. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3140. ffrtmpcrypt_protocol_select="tcp_protocol"

  3141. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3142. ffrtmphttp_protocol_select="http_protocol"

  3143. ftp_protocol_select="tcp_protocol"

  3144. gopher_protocol_select="network"

  3145. http_protocol_select="tcp_protocol"

  3146. http_protocol_suggest="zlib"

  3147. httpproxy_protocol_select="tcp_protocol"

  3148. httpproxy_protocol_suggest="zlib"

  3149. https_protocol_select="tls_protocol"

  3150. https_protocol_suggest="zlib"

  3151. icecast_protocol_select="http_protocol"

  3152. librtmp_protocol_deps="librtmp"

  3153. librtmpe_protocol_deps="librtmp"

  3154. librtmps_protocol_deps="librtmp"

  3155. librtmpt_protocol_deps="librtmp"

  3156. librtmpte_protocol_deps="librtmp"

  3157. libsmbclient_protocol_deps="libsmbclient gplv3"

  3158. libssh_protocol_deps="libssh"

  3159. mmsh_protocol_select="http_protocol"

  3160. mmst_protocol_select="network"

  3161. rtmp_protocol_conflict="librtmp_protocol"

  3162. rtmp_protocol_select="tcp_protocol"

  3163. rtmp_protocol_suggest="zlib"

  3164. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3165. rtmpe_protocol_suggest="zlib"

  3166. rtmps_protocol_conflict="librtmp_protocol"

  3167. rtmps_protocol_select="tls_protocol"

  3168. rtmps_protocol_suggest="zlib"

  3169. rtmpt_protocol_select="ffrtmphttp_protocol"

  3170. rtmpt_protocol_suggest="zlib"

  3171. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3172. rtmpte_protocol_suggest="zlib"

  3173. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3174. rtmpts_protocol_suggest="zlib"

  3175. rtp_protocol_select="udp_protocol"

  3176. schannel_conflict="openssl gnutls"

  3177. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3178. sctp_protocol_select="network"

  3179. securetransport_conflict="openssl gnutls"

  3180. srtp_protocol_select="rtp_protocol srtp"

  3181. tcp_protocol_select="network"

  3182. tls_protocol_deps_any="gnutls openssl schannel securetransport"

  3183. tls_protocol_select="tcp_protocol"

  3184. udp_protocol_select="network"

  3185. udplite_protocol_select="network"

  3186. unix_protocol_deps="sys_un_h"

  3187. unix_protocol_select="network"

  3188. 

  3189. # filters

  3190. afftfilt_filter_deps="avcodec"

  3191. afftfilt_filter_select="fft"

  3192. afir_filter_deps="avcodec"

  3193. afir_filter_select="fft"

  3194. amovie_filter_deps="avcodec avformat"

  3195. aresample_filter_deps="swresample"

  3196. ass_filter_deps="libass"

  3197. atempo_filter_deps="avcodec"

  3198. atempo_filter_select="rdft"

  3199. azmq_filter_deps="libzmq"

  3200. blackframe_filter_deps="gpl"

  3201. boxblur_filter_deps="gpl"

  3202. bs2b_filter_deps="libbs2b"

  3203. colormatrix_filter_deps="gpl"

  3204. coreimage_filter_deps="coreimage appkit"

  3205. coreimage_filter_extralibs="-framework OpenGL"

  3206. coreimagesrc_filter_deps="coreimage appkit"

  3207. coreimagesrc_filter_extralibs="-framework OpenGL"

  3208. cover_rect_filter_deps="avcodec avformat gpl"

  3209. cropdetect_filter_deps="gpl"

  3210. deinterlace_qsv_filter_deps="libmfx"

  3211. deinterlace_vaapi_filter_deps="vaapi"

  3212. delogo_filter_deps="gpl"

  3213. deshake_filter_select="pixelutils"

  3214. drawtext_filter_deps="libfreetype"

  3215. drawtext_filter_suggest="libfontconfig libfribidi"

  3216. elbg_filter_deps="avcodec"

  3217. eq_filter_deps="gpl"

  3218. fftfilt_filter_deps="avcodec"

  3219. fftfilt_filter_select="rdft"

  3220. find_rect_filter_deps="avcodec avformat gpl"

  3221. firequalizer_filter_deps="avcodec"

  3222. firequalizer_filter_select="rdft"

  3223. flite_filter_deps="libflite"

  3224. framerate_filter_select="pixelutils"

  3225. frei0r_filter_deps="frei0r libdl"

  3226. frei0r_src_filter_deps="frei0r libdl"

  3227. fspp_filter_deps="gpl"

  3228. geq_filter_deps="gpl"

  3229. histeq_filter_deps="gpl"

  3230. hqdn3d_filter_deps="gpl"

  3231. interlace_filter_deps="gpl"

  3232. kerndeint_filter_deps="gpl"

  3233. ladspa_filter_deps="ladspa libdl"

  3234. lv2_filter_deps="lv2"

  3235. mcdeint_filter_deps="avcodec gpl"

  3236. movie_filter_deps="avcodec avformat"

  3237. mpdecimate_filter_deps="gpl"

  3238. mpdecimate_filter_select="pixelutils"

  3239. mptestsrc_filter_deps="gpl"

  3240. negate_filter_deps="lut_filter"

  3241. nnedi_filter_deps="gpl"

  3242. ocr_filter_deps="libtesseract"

  3243. ocv_filter_deps="libopencv"

  3244. overlay_opencl_filter_deps="opencl"

  3245. overlay_qsv_filter_deps="libmfx"

  3246. overlay_qsv_filter_select="qsvvpp"

  3247. owdenoise_filter_deps="gpl"

  3248. pan_filter_deps="swresample"

  3249. perspective_filter_deps="gpl"

  3250. phase_filter_deps="gpl"

  3251. pp7_filter_deps="gpl"

  3252. pp_filter_deps="gpl postproc"

  3253. pullup_filter_deps="gpl"

  3254. removelogo_filter_deps="avcodec avformat swscale"

  3255. repeatfields_filter_deps="gpl"

  3256. resample_filter_deps="avresample"

  3257. rubberband_filter_deps="librubberband"

  3258. sab_filter_deps="gpl swscale"

  3259. scale2ref_filter_deps="swscale"

  3260. scale_filter_deps="swscale"

  3261. scale_qsv_filter_deps="libmfx"

  3262. select_filter_select="pixelutils"

  3263. showcqt_filter_deps="avcodec avformat swscale"

  3264. showcqt_filter_suggest="libfontconfig libfreetype"

  3265. showcqt_filter_select="fft"

  3266. showfreqs_filter_deps="avcodec"

  3267. showfreqs_filter_select="fft"

  3268. showspectrum_filter_deps="avcodec"

  3269. showspectrum_filter_select="fft"

  3270. showspectrumpic_filter_deps="avcodec"

  3271. showspectrumpic_filter_select="fft"

  3272. signature_filter_deps="gpl avcodec avformat"

  3273. smartblur_filter_deps="gpl swscale"

  3274. sofalizer_filter_deps="libmysofa avcodec"

  3275. sofalizer_filter_select="fft"

  3276. spectrumsynth_filter_deps="avcodec"

  3277. spectrumsynth_filter_select="fft"

  3278. spp_filter_deps="gpl avcodec"

  3279. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3280. stereo3d_filter_deps="gpl"

  3281. subtitles_filter_deps="avformat avcodec libass"

  3282. super2xsai_filter_deps="gpl"

  3283. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3284. tinterlace_filter_deps="gpl"

  3285. tinterlace_merge_test_deps="tinterlace_filter"

  3286. tinterlace_pad_test_deps="tinterlace_filter"

  3287. tonemap_filter_deps="const_nan"

  3288. unsharp_opencl_filter_deps="opencl"

  3289. uspp_filter_deps="gpl avcodec"

  3290. vaguedenoiser_filter_deps="gpl"

  3291. vidstabdetect_filter_deps="libvidstab"

  3292. vidstabtransform_filter_deps="libvidstab"

  3293. libvmaf_filter_deps="libvmaf"

  3294. zmq_filter_deps="libzmq"

  3295. zoompan_filter_deps="swscale"

  3296. zscale_filter_deps="libzimg const_nan"

  3297. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3298. vpp_qsv_filter_deps="libmfx"

  3299. vpp_qsv_filter_select="qsvvpp"

  3300. 

  3301. # examples

  3302. avio_dir_cmd_deps="avformat avutil"

  3303. avio_reading_deps="avformat avcodec avutil"

  3304. decode_audio_example_deps="avcodec avutil"

  3305. decode_video_example_deps="avcodec avutil"

  3306. demuxing_decoding_example_deps="avcodec avformat avutil"

  3307. encode_audio_example_deps="avcodec avutil"

  3308. encode_video_example_deps="avcodec avutil"

  3309. extract_mvs_example_deps="avcodec avformat avutil"

  3310. filter_audio_example_deps="avfilter avutil"

  3311. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3312. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3313. http_multiclient_example_deps="avformat avutil fork"

  3314. hw_decode_example_deps="avcodec avformat avutil"

  3315. metadata_example_deps="avformat avutil"

  3316. muxing_example_deps="avcodec avformat avutil swscale"

  3317. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3318. remuxing_example_deps="avcodec avformat avutil"

  3319. resampling_audio_example_deps="avutil swresample"

  3320. scaling_video_example_deps="avutil swscale"

  3321. transcode_aac_example_deps="avcodec avformat swresample"

  3322. transcoding_example_deps="avfilter avcodec avformat avutil"

  3323. 

  3324. # EXTRALIBS_LIST

  3325. cpu_init_extralibs="pthreads_extralibs"

  3326. cws2fws_extralibs="zlib_extralibs"

  3327. 

  3328. # libraries, in linking order

  3329. avcodec_deps="avutil"

  3330. avcodec_suggest="libm"

  3331. avcodec_select="null_bsf"

  3332. avdevice_deps="avformat avcodec avutil"

  3333. avdevice_suggest="libm"

  3334. avfilter_deps="avutil"

  3335. avfilter_suggest="libm"

  3336. avformat_deps="avcodec avutil"

  3337. avformat_suggest="libm network zlib"

  3338. avresample_deps="avutil"

  3339. avresample_suggest="libm"

  3340. avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3341. postproc_deps="avutil gpl"

  3342. postproc_suggest="libm"

  3343. swresample_deps="avutil"

  3344. swresample_suggest="libm libsoxr"

  3345. swscale_deps="avutil"

  3346. swscale_suggest="libm"

  3347. 

  3348. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3349. avfilter_extralibs="pthreads_extralibs"

  3350. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3351. 

  3352. # programs

  3353. ffmpeg_deps="avcodec avfilter avformat swresample"

  3354. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3355.                null_filter

  3356.                trim_filter"

  3357. ffmpeg_suggest="ole32 psapi shell32"

  3358. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3359. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3360. ffplay_suggest="shell32"

  3361. ffprobe_deps="avcodec avformat"

  3362. ffprobe_suggest="shell32"

  3363. ffserver_deps="avformat fork sarestart"

  3364. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3365. 

  3366. # documentation

  3367. podpages_deps="perl"

  3368. manpages_deps="perl pod2man"

  3369. htmlpages_deps="perl"

  3370. htmlpages_deps_any="makeinfo_html texi2html"

  3371. txtpages_deps="perl makeinfo"

  3372. doc_deps_any="manpages htmlpages podpages txtpages"

  3373. 

  3374. # default parameters

  3375. 

  3376. logfile="ffbuild/config.log"

  3377. 

  3378. # installation paths

  3379. prefix_default="/usr/local"

  3380. bindir_default='${prefix}/bin'

  3381. datadir_default='${prefix}/share/ffmpeg'

  3382. docdir_default='${prefix}/share/doc/ffmpeg'

  3383. incdir_default='${prefix}/include'

  3384. libdir_default='${prefix}/lib'

  3385. mandir_default='${prefix}/share/man'

  3386. 

  3387. # toolchain

  3388. ar_default="ar"

  3389. cc_default="gcc"

  3390. cxx_default="g++"

  3391. host_cc_default="gcc"

  3392. doxygen_default="doxygen"

  3393. install="install"

  3394. ln_s_default="ln -s -f"

  3395. nm_default="nm -g"

  3396. pkg_config_default=pkg-config

  3397. ranlib_default="ranlib"

  3398. strip_default="strip"

  3399. version_script='--version-script'

  3400. objformat="elf32"

  3401. x86asmexe_default="nasm"

  3402. windres_default="windres"

  3403. nvcc_default="nvcc"

  3404. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3405. striptype="direct"

  3406. 

  3407. # OS

  3408. target_os_default=$(tolower $(uname -s))

  3409. host_os=$target_os_default

  3410. 

  3411. # machine

  3412. if test "$target_os_default" = aix; then

  3413.     arch_default=$(uname -p)

  3414.     strip_default="strip -X32_64"

  3415. else

  3416.     arch_default=$(uname -m)

  3417. fi

  3418. cpu="generic"

  3419. intrinsics="none"

  3420. 

  3421. # configurable options

  3422. enable $PROGRAM_LIST

  3423. enable $DOCUMENT_LIST

  3424. enable $EXAMPLE_LIST

  3425. enable $(filter_out avresample $LIBRARY_LIST)

  3426. enable stripping

  3427. 

  3428. enable asm

  3429. enable debug

  3430. enable doc

  3431. enable faan faandct faanidct

  3432. enable optimizations

  3433. enable runtime_cpudetect

  3434. enable safe_bitstream_reader

  3435. enable static

  3436. enable swscale_alpha

  3437. enable valgrind_backtrace

  3438. 

  3439. sws_max_filter_size_default=256

  3440. set_default sws_max_filter_size

  3441. 

  3442. # internal components are enabled by default

  3443. enable $EXTRALIBS_LIST

  3444. 

  3445. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3446. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3447. 

  3448. # build settings

  3449. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3450. LIBPREF="lib"

  3451. LIBSUF=".a"

  3452. FULLNAME='$(NAME)$(BUILDSUF)'

  3453. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3454. SLIBPREF="lib"

  3455. SLIBSUF=".so"

  3456. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3457. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3458. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3459. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3460. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3461. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3462. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3463. 

  3464. asflags_filter=echo

  3465. cflags_filter=echo

  3466. ldflags_filter=echo

  3467. 

  3468. AS_C='-c'

  3469. AS_O='-o $@'

  3470. CC_C='-c'

  3471. CC_E='-E -o $@'

  3472. CC_O='-o $@'

  3473. CXX_C='-c'

  3474. CXX_O='-o $@'

  3475. OBJCC_C='-c'

  3476. OBJCC_E='-E -o $@'

  3477. OBJCC_O='-o $@'

  3478. X86ASM_O='-o $@'

  3479. LD_O='-o $@'

  3480. LD_LIB='-l%'

  3481. LD_PATH='-L'

  3482. HOSTCC_C='-c'

  3483. HOSTCC_E='-E -o $@'

  3484. HOSTCC_O='-o $@'

  3485. HOSTLD_O='-o $@'

  3486. NVCC_C='-c'

  3487. NVCC_O='-o $@'

  3488. 

  3489. host_extralibs='-lm'

  3490. host_cflags_filter=echo

  3491. host_ldflags_filter=echo

  3492. 

  3493. target_path='$(CURDIR)'

  3494. 

  3495. # since the object filename is not given with the -MM flag, the compiler

  3496. # is only able to print the basename, and we must add the path ourselves

  3497. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3498. DEPFLAGS='-MM'

  3499. 

  3500. mkdir -p ffbuild

  3501. 

  3502. # find source path

  3503. if test -f configure; then

  3504.     source_path=.

  3505. else

  3506.     source_path=$(cd $(dirname "$0"); pwd)

  3507.     case "$source_path" in

  3508.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3509.     esac

  3510.     test -e "$source_path/config.h" &&

  3511.         die "Out of tree builds are impossible with config.h in source dir."

  3512. fi

  3513. 

  3514. for v in "$@"; do

  3515.     r=${v#*=}

  3516.     l=${v%"$r"}

  3517.     r=$(sh_quote "$r")

  3518.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3519. done

  3520. 

  3521. find_things(){

  3522.     thing=$1

  3523.     pattern=$2

  3524.     file=$source_path/$3

  3525.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3526. }

  3527. 

  3528. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3529. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3530. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3531. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3532. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3533. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3534. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3535. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3536. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3537. 

  3538. find_things_extern(){

  3539.     thing=$1

  3540.     pattern=$2

  3541.     file=$source_path/$3

  3542.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3543. }

  3544. 

  3545. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3546. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3547. 

  3548. AVCODEC_COMPONENTS_LIST="

  3549.     $BSF_LIST

  3550.     $DECODER_LIST

  3551.     $ENCODER_LIST

  3552.     $HWACCEL_LIST

  3553.     $PARSER_LIST

  3554. "

  3555. 

  3556. AVDEVICE_COMPONENTS_LIST="

  3557.     $INDEV_LIST

  3558.     $OUTDEV_LIST

  3559. "

  3560. 

  3561. AVFILTER_COMPONENTS_LIST="

  3562.     $FILTER_LIST

  3563. "

  3564. 

  3565. AVFORMAT_COMPONENTS_LIST="

  3566.     $DEMUXER_LIST

  3567.     $MUXER_LIST

  3568.     $PROTOCOL_LIST

  3569. "

  3570. 

  3571. ALL_COMPONENTS="

  3572.     $AVCODEC_COMPONENTS_LIST

  3573.     $AVDEVICE_COMPONENTS_LIST

  3574.     $AVFILTER_COMPONENTS_LIST

  3575.     $AVFORMAT_COMPONENTS_LIST

  3576. "

  3577. 

  3578. for n in $COMPONENT_LIST; do

  3579.     v=$(toupper ${n%s})_LIST

  3580.     eval enable \$$v

  3581.     eval ${n}_if_any="\$$v"

  3582. done

  3583. 

  3584. enable $ARCH_EXT_LIST

  3585. 

  3586. die_unknown(){

  3587.     echo "Unknown option \"$1\"."

  3588.     echo "See $0 --help for available options."

  3589.     exit 1

  3590. }

  3591. 

  3592. print_in_columns() {

  3593.     cols=$(expr $ncols / 24)

  3594.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3595. }

  3596. 

  3597. show_list() {

  3598.     suffix=_$1

  3599.     shift

  3600.     echo $* | sed s/$suffix//g | print_in_columns

  3601.     exit 0

  3602. }

  3603. 

  3604. rand_list(){

  3605.     IFS=', '

  3606.     set -- $*

  3607.     unset IFS

  3608.     for thing; do

  3609.         comp=${thing%:*}

  3610.         prob=${thing#$comp}

  3611.         prob=${prob#:}

  3612.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3613.         echo "prob ${prob:-0.5}"

  3614.         printf '%s\n' $comp

  3615.     done

  3616. }

  3617. 

  3618. do_random(){

  3619.     action=$1

  3620.     shift

  3621.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3622.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3623. }

  3624. 

  3625. for opt do

  3626.     optval="${opt#*=}"

  3627.     case "$opt" in

  3628.         --extra-ldflags=*)

  3629.             add_ldflags $optval

  3630.         ;;

  3631.         --extra-ldexeflags=*)

  3632.             add_ldexeflags $optval

  3633.         ;;

  3634.         --extra-ldsoflags=*)

  3635.             add_ldsoflags $optval

  3636.         ;;

  3637.         --extra-ldlibflags=*)

  3638.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3639.                  "removed in the future. Use --extra-ldsoflags instead."

  3640.             add_ldsoflags $optval

  3641.         ;;

  3642.         --extra-libs=*)

  3643.             add_extralibs $optval

  3644.         ;;

  3645.         --disable-devices)

  3646.             disable $INDEV_LIST $OUTDEV_LIST

  3647.         ;;

  3648.         --enable-debug=*)

  3649.             debuglevel="$optval"

  3650.         ;;

  3651.         --disable-programs)

  3652.             disable $PROGRAM_LIST

  3653.         ;;

  3654.         --disable-everything)

  3655.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3656.         ;;

  3657.         --disable-all)

  3658.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3659.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3660.             enable avutil

  3661.         ;;

  3662.         --enable-random|--disable-random)

  3663.             action=${opt%%-random}

  3664.             do_random ${action#--} $COMPONENT_LIST

  3665.         ;;

  3666.         --enable-random=*|--disable-random=*)

  3667.             action=${opt%%-random=*}

  3668.             do_random ${action#--} $optval

  3669.         ;;

  3670.         --enable-sdl)

  3671.             enable sdl2

  3672.         ;;

  3673.         --enable-*=*|--disable-*=*)

  3674.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3675.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3676.             eval list=\$$(toupper $thing)_LIST

  3677.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3678.             list=$(filter "$name" $list)

  3679.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3680.             $action $list

  3681.         ;;

  3682.         --enable-yasm|--disable-yasm)

  3683.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3684.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3685.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3686.         ;;

  3687.         --yasmexe=*)

  3688.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3689.                  "removed in the future. Use --x86asmexe instead."

  3690.             x86asmexe="$optval"

  3691.         ;;

  3692.         --enable-?*|--disable-?*)

  3693.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3694.             if is_in $option $COMPONENT_LIST; then

  3695.                 test $action = disable && action=unset

  3696.                 eval $action \$$(toupper ${option%s})_LIST

  3697.             elif is_in $option $CMDLINE_SELECT; then

  3698.                 $action $option

  3699.             else

  3700.                 die_unknown $opt

  3701.             fi

  3702.         ;;

  3703.         --list-*)

  3704.             NAME="${opt#--list-}"

  3705.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3706.             NAME=${NAME%s}

  3707.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3708.         ;;

  3709.         --help|-h) show_help

  3710.         ;;

  3711.         --quiet|-q) quiet=yes

  3712.         ;;

  3713.         --fatal-warnings) enable fatal_warnings

  3714.         ;;

  3715.         --libfuzzer=*)

  3716.             libfuzzer_path="$optval"

  3717.         ;;

  3718.         *)

  3719.             optname="${opt%%=*}"

  3720.             optname="${optname#--}"

  3721.             optname=$(echo "$optname" | sed 's/-/_/g')

  3722.             if is_in $optname $CMDLINE_SET; then

  3723.                 eval $optname='$optval'

  3724.             elif is_in $optname $CMDLINE_APPEND; then

  3725.                 append $optname "$optval"

  3726.             else

  3727.                 die_unknown $opt

  3728.             fi

  3729.         ;;

  3730.     esac

  3731. done

  3732. 

  3733. for e in $env; do

  3734.     eval "export $e"

  3735. done

  3736. 

  3737. if disabled autodetect; then

  3738. 

  3739.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3740.     # for the iconv from the libc.

  3741.     disabled iconv || enable libc_iconv

  3742. 

  3743.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3744.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3745. fi

  3746. # Mark specifically enabled, but normally autodetected libraries as requested.

  3747. for lib in $AUTODETECT_LIBS; do

  3748.     enabled $lib && request $lib

  3749. done

  3750. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3751. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3752. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3753. 

  3754. disabled logging && logfile=/dev/null

  3755. 

  3756. # command line configuration sanity checks

  3757. 

  3758. # we need to build at least one lib type

  3759. if ! enabled_any static shared; then

  3760.     cat <<EOF

  3761. At least one library type must be built.

  3762. Specify --enable-static to build the static libraries or --enable-shared to

  3763. build the shared libraries as well. To only build the shared libraries specify

  3764. --disable-static in addition to --enable-shared.

  3765. EOF

  3766.     exit 1

  3767. fi

  3768. 

  3769. die_license_disabled() {

  3770.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3771. }

  3772. 

  3773. die_license_disabled_gpl() {

  3774.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3775. }

  3776. 

  3777. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3778. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3779. 

  3780. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3781. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3782. 

  3783. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3784. 

  3785. enabled_all gnutls openssl &&

  3786.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3787. 

  3788. # Disable all the library-specific components if the library itself

  3789. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3790. 

  3791. disable_components(){

  3792.     disabled ${1} && disable $(

  3793.         eval components="\$$(toupper ${1})_COMPONENTS"

  3794.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3795.     )

  3796. }

  3797. 

  3798. map 'disable_components $v' $LIBRARY_LIST

  3799. 

  3800. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3801. set >> $logfile

  3802. 

  3803. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3804. 

  3805. enabled ossfuzz && {

  3806.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3807.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3808. }

  3809. 

  3810. case "$toolchain" in

  3811.     *-asan)

  3812.         cc_default="${toolchain%-asan}"

  3813.         add_cflags  -fsanitize=address

  3814.         add_ldflags -fsanitize=address

  3815.     ;;

  3816.     *-msan)

  3817.         cc_default="${toolchain%-msan}"

  3818.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3819.         add_ldflags -fsanitize=memory

  3820.     ;;

  3821.     *-tsan)

  3822.         cc_default="${toolchain%-tsan}"

  3823.         add_cflags  -fsanitize=thread -fPIE

  3824.         add_ldflags -fsanitize=thread -pie

  3825.         case "$toolchain" in

  3826.             gcc-tsan)

  3827.                 add_cflags  -fPIC

  3828.                 add_ldflags -fPIC

  3829.                 ;;

  3830.         esac

  3831.     ;;

  3832.     *-usan)

  3833.         cc_default="${toolchain%-usan}"

  3834.         add_cflags  -fsanitize=undefined

  3835.         add_ldflags -fsanitize=undefined

  3836.     ;;

  3837.     valgrind-*)

  3838.         target_exec_default="valgrind"

  3839.         case "$toolchain" in

  3840.             valgrind-massif)

  3841.                 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"

  3842.                 ;;

  3843.             valgrind-memcheck)

  3844.                 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"

  3845.                 ;;

  3846.         esac

  3847.     ;;

  3848.     msvc)

  3849.         # Check whether the current MSVC version needs the C99 converter.

  3850.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3851.         # support enough of C99 to build ffmpeg. Default to the new

  3852.         # behaviour if the regexp was unable to match anything, since this

  3853.         # successfully parses the version number of existing supported

  3854.         # versions that require the converter (MSVC 2010 and 2012).

  3855.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3856.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3857.             cc_default="cl"

  3858.             cxx_default="cl"

  3859.         else

  3860.             cc_default="c99wrap cl"

  3861.             cxx_default="c99wrap cl"

  3862.         fi

  3863.         ld_default="$source_path/compat/windows/mslink"

  3864.         nm_default="dumpbin -symbols"

  3865.         ar_default="lib"

  3866.         case "$arch" in

  3867.         aarch64|arm64)

  3868.             as_default="armasm64"

  3869.             ;;

  3870.         arm*)

  3871.             as_default="armasm"

  3872.             ;;

  3873.         esac

  3874.         target_os_default="win32"

  3875.         # Use a relative path for TMPDIR. This makes sure all the

  3876.         # ffconf temp files are written with a relative path, avoiding

  3877.         # issues with msys/win32 path conversion for MSVC parameters

  3878.         # such as -Fo<file> or -out:<file>.

  3879.         TMPDIR=.

  3880.     ;;

  3881.     icl)

  3882.         cc_default="icl"

  3883.         ld_default="xilink"

  3884.         nm_default="dumpbin -symbols"

  3885.         ar_default="xilib"

  3886.         target_os_default="win32"

  3887.         TMPDIR=.

  3888.     ;;

  3889.     gcov)

  3890.         add_cflags  -fprofile-arcs -ftest-coverage

  3891.         add_ldflags -fprofile-arcs -ftest-coverage

  3892.     ;;

  3893.     llvm-cov)

  3894.         add_cflags -fprofile-arcs -ftest-coverage

  3895.         add_ldflags --coverage

  3896.     ;;

  3897.     hardened)

  3898.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3899.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3900.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3901.         add_cflags   -fPIE

  3902.         add_ldexeflags -fPIE -pie

  3903.     ;;

  3904.     ?*)

  3905.         die "Unknown toolchain $toolchain"

  3906.     ;;

  3907. esac

  3908. 

  3909. if test -n "$cross_prefix"; then

  3910.     test -n "$arch" && test -n "$target_os" ||

  3911.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3912.     enable cross_compile

  3913. fi

  3914. 

  3915. ar_default="${cross_prefix}${ar_default}"

  3916. cc_default="${cross_prefix}${cc_default}"

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

  3918. nm_default="${cross_prefix}${nm_default}"

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

  3920. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3921.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3922. else

  3923.     ranlib_default="${cross_prefix}${ranlib_default}"

  3924. fi

  3925. strip_default="${cross_prefix}${strip_default}"

  3926. windres_default="${cross_prefix}${windres_default}"

  3927. 

  3928. sysinclude_default="${sysroot}/usr/include"

  3929. 

  3930. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3931.     target_exec target_os x86asmexe nvcc

  3932. enabled cross_compile || host_cc_default=$cc

  3933. set_default host_cc

  3934. 

  3935. pkg_config_fail_message=""

  3936. if ! $pkg_config --version >/dev/null 2>&1; then

  3937.     warn "$pkg_config not found, library detection may fail."

  3938.     pkg_config=false

  3939. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3940.     pkg_config_fail_message="

  3941. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3942. fi

  3943. 

  3944. if test $doxygen != $doxygen_default && \

  3945.   ! $doxygen --version >/dev/null 2>&1; then

  3946.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3947. fi

  3948. 

  3949. exesuf() {

  3950.     case $1 in

  3951.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3952.     esac

  3953. }

  3954. 

  3955. EXESUF=$(exesuf $target_os)

  3956. HOSTEXESUF=$(exesuf $host_os)

  3957. 

  3958. # set temporary file name

  3959. : ${TMPDIR:=$TEMPDIR}

  3960. : ${TMPDIR:=$TMP}

  3961. : ${TMPDIR:=/tmp}

  3962. 

  3963. if [ -n "$tempprefix" ] ; then

  3964.     mktemp(){

  3965.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3966.         echo "$tmpname"

  3967.         mkdir "$tmpname"

  3968.     }

  3969. elif ! check_cmd mktemp -u XXXXXX; then

  3970.     # simple replacement for missing mktemp

  3971.     # NOT SAFE FOR GENERAL USE

  3972.     mktemp(){

  3973.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3974.         echo "$tmpname"

  3975.         mkdir "$tmpname"

  3976.     }

  3977. fi

  3978. 

  3979. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3980.     die "Unable to create temporary directory in $TMPDIR."

  3981. 

  3982. tmpfile(){

  3983.     tmp="${FFTMPDIR}/test"$2

  3984.     (set -C; exec > $tmp) 2> /dev/null ||

  3985.         die "Unable to create temporary file in $FFTMPDIR."

  3986.     eval $1=$tmp

  3987. }

  3988. 

  3989. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3990. trap 'exit 2' INT

  3991. 

  3992. tmpfile TMPASM .asm

  3993. tmpfile TMPC   .c

  3994. tmpfile TMPCPP .cpp

  3995. tmpfile TMPE   $EXESUF

  3996. tmpfile TMPH   .h

  3997. tmpfile TMPM   .m

  3998. tmpfile TMPO   .o

  3999. tmpfile TMPS   .S

  4000. tmpfile TMPSH  .sh

  4001. tmpfile TMPV   .ver

  4002. 

  4003. unset -f mktemp

  4004. 

  4005. chmod +x $TMPE

  4006. 

  4007. # make sure we can execute files in $TMPDIR

  4008. cat > $TMPSH 2>> $logfile <<EOF

  4009. #! /bin/sh

  4010. EOF

  4011. chmod +x $TMPSH >> $logfile 2>&1

  4012. if ! $TMPSH >> $logfile 2>&1; then

  4013.     cat <<EOF

  4014. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4015. variable to another directory and make sure that it is not mounted noexec.

  4016. EOF

  4017.     die "Sanity test failed."

  4018. fi

  4019. 

  4020. armasm_flags(){

  4021.     for flag; do

  4022.         case $flag in

  4023.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4024.             # be passed to gas-preprocessor

  4025.             -M[TD]*)                                            ;;

  4026.             *)                  echo $flag                      ;;

  4027.         esac

  4028.    done

  4029. }

  4030. 

  4031. cparser_flags(){

  4032.     for flag; do

  4033.         case $flag in

  4034.             -Wno-switch)             echo -Wno-switch-enum ;;

  4035.             -Wno-format-zero-length) ;;

  4036.             -Wdisabled-optimization) ;;

  4037.             -Wno-pointer-sign)       echo -Wno-other ;;

  4038.             *)                       echo $flag ;;

  4039.         esac

  4040.     done

  4041. }

  4042. 

  4043. msvc_common_flags(){

  4044.     for flag; do

  4045.         case $flag in

  4046.             # In addition to specifying certain flags under the compiler

  4047.             # specific filters, they must be specified here as well or else the

  4048.             # generic catch all at the bottom will print the original flag.

  4049.             -Wall)                ;;

  4050.             -Wextra)              ;;

  4051.             -std=c99)             ;;

  4052.             # Common flags

  4053.             -fomit-frame-pointer) ;;

  4054.             -g)                   echo -Z7 ;;

  4055.             -fno-math-errno)      ;;

  4056.             -fno-common)          ;;

  4057.             -fno-signed-zeros)    ;;

  4058.             -fPIC)                ;;

  4059.             -mthumb)              ;;

  4060.             -march=*)             ;;

  4061.             -lz)                  echo zlib.lib ;;

  4062.             -lx264)               echo libx264.lib ;;

  4063.             -lstdc++)             ;;

  4064.             -l*)                  echo ${flag#-l}.lib ;;

  4065.             -LARGEADDRESSAWARE)   echo $flag ;;

  4066.             -L*)                  echo -libpath:${flag#-L} ;;

  4067.             *)                    echo $flag ;;

  4068.         esac

  4069.     done

  4070. }

  4071. 

  4072. msvc_flags(){

  4073.     msvc_common_flags "$@"

  4074.     for flag; do

  4075.         case $flag in

  4076.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4077.                                        -wd4554 ;;

  4078.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4079.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4080.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4081.                                        -wd4307 \

  4082.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4083.         esac

  4084.     done

  4085. }

  4086. 

  4087. icl_flags(){

  4088.     msvc_common_flags "$@"

  4089.     for flag; do

  4090.         case $flag in

  4091.             # Despite what Intel's documentation says -Wall, which is supported

  4092.             # on Windows, does enable remarks so disable them here.

  4093.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4094.             -std=c99)             echo -Qstd=c99 ;;

  4095.             -flto)                echo -ipo ;;

  4096.         esac

  4097.     done

  4098. }

  4099. 

  4100. icc_flags(){

  4101.     for flag; do

  4102.         case $flag in

  4103.             -flto)                echo -ipo ;;

  4104.             *)                    echo $flag ;;

  4105.         esac

  4106.     done

  4107. }

  4108. 

  4109. suncc_flags(){

  4110.     for flag; do

  4111.         case $flag in

  4112.             -march=*|-mcpu=*)

  4113.                 case "${flag#*=}" in

  4114.                     native)                   echo -xtarget=native       ;;

  4115.                     v9|niagara)               echo -xarch=sparc          ;;

  4116.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4117.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4118.                     i586|pentium)             echo -xchip=pentium        ;;

  4119.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4120.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4121.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4122.                     pentium4*)          echo -xtarget=pentium4           ;;

  4123.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4124.                     *-sse3)             echo -xarch=sse3                 ;;

  4125.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4126.                     bonnell)                   echo -xarch=ssse3         ;;

  4127.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4128.                     westmere)                  echo -xtarget=westmere    ;;

  4129.                     silvermont)                echo -xarch=sse4_2        ;;

  4130.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4131.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4132.                                                echo -xarch=avx           ;;

  4133.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4134.                     btver1)                    echo -xarch=amdsse4a      ;;

  4135.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4136.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4137.                     k8|opteron|athlon64|athlon-fx)

  4138.                                                echo -xarch=sse2a         ;;

  4139.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4140.                 esac

  4141.                 ;;

  4142.             -std=c99)             echo -xc99              ;;

  4143.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4144.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4145.             -W*,*)                echo $flag              ;;

  4146.             -f*-*|-W*|-mimpure-text)                      ;;

  4147.             -shared)              echo -G                 ;;

  4148.             *)                    echo $flag              ;;

  4149.         esac

  4150.     done

  4151. }

  4152. 

  4153. probe_cc(){

  4154.     pfx=$1

  4155.     _cc=$2

  4156.     first=$3

  4157. 

  4158.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4159.     unset _ld_o _ldflags _ld_lib _ld_path

  4160.     unset _depflags _DEPCMD _DEPFLAGS

  4161.     _flags_filter=echo

  4162. 

  4163.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4164.         true # no-op to avoid reading stdin in following checks

  4165.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4166.         _type=llvm_gcc

  4167.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4168.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4169.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4170.         _cflags_speed='-O3'

  4171.         _cflags_size='-Os'

  4172.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4173.         _type=gcc

  4174.         gcc_version=$($_cc --version | head -n1)

  4175.         gcc_basever=$($_cc -dumpversion)

  4176.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4177.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4178.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4179.         case $gcc_basever in

  4180.             2) ;;

  4181.             2.*) ;;

  4182.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4183.         esac

  4184.         if [ "$first" = true ]; then

  4185.             case $gcc_basever in

  4186.                 4.2*)

  4187.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4188.             esac

  4189.         fi

  4190.         _cflags_speed='-O3'

  4191.         _cflags_size='-Os'

  4192.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4193.         _type=icc

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

  4195.         _depflags='-MMD'

  4196.         _cflags_speed='-O3'

  4197.         _cflags_size='-Os'

  4198.         _cflags_noopt='-O1'

  4199.         _flags_filter=icc_flags

  4200.     elif $_cc -v 2>&1 | grep -q xlc; then

  4201.         _type=xlc

  4202.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4203.         _cflags_speed='-O5'

  4204.         _cflags_size='-O5 -qcompact'

  4205.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4206.         test -d "$sysroot" || die "No valid sysroot specified."

  4207.         _type=armcc

  4208.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4209.         armcc_conf="$PWD/armcc.conf"

  4210.         $_cc --arm_linux_configure                 \

  4211.              --arm_linux_config_file="$armcc_conf" \

  4212.              --configure_sysroot="$sysroot"        \

  4213.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4214.              die "Error creating armcc configuration file."

  4215.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4216.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4217.         as_default="${cross_prefix}gcc"

  4218.         _depflags='-MMD'

  4219.         _cflags_speed='-O3'

  4220.         _cflags_size='-Os'

  4221.     elif $_cc -v 2>&1 | grep -q clang; then

  4222.         _type=clang

  4223.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4224.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4225.         _cflags_speed='-O3'

  4226.         _cflags_size='-Oz'

  4227.     elif $_cc -V 2>&1 | grep -q Sun; then

  4228.         _type=suncc

  4229.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4230.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4231.         _DEPFLAGS='-xM1 -xc99'

  4232.         _ldflags='-std=c99'

  4233.         _cflags_speed='-O5'

  4234.         _cflags_size='-O5 -xspace'

  4235.         _flags_filter=suncc_flags

  4236.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4237.         _type=pathscale

  4238.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4239.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4240.         _cflags_speed='-O2'

  4241.         _cflags_size='-Os'

  4242.         _flags_filter='filter_out -Wdisabled-optimization'

  4243.     elif $_cc -v 2>&1 | grep -q Open64; then

  4244.         _type=open64

  4245.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4246.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4247.         _cflags_speed='-O2'

  4248.         _cflags_size='-Os'

  4249.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4250.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4251.         _type=armasm

  4252.         _ident=$($_cc | head -n1)

  4253.         # 4509: "This form of conditional instruction is deprecated"

  4254.         _flags="-nologo -ignore 4509"

  4255.         _flags_filter=armasm_flags

  4256.     elif $_cc 2>&1 | grep -q Intel; then

  4257.         _type=icl

  4258.         _ident=$($_cc 2>&1 | head -n1)

  4259.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4260.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4261.         # versions (tested) as well.

  4262.         _cflags_speed="-O2"

  4263.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4264.         if $_cc 2>&1 | grep -q Linker; then

  4265.             _ld_o='-out:$@'

  4266.         else

  4267.             _ld_o='-Fe$@'

  4268.         fi

  4269.         _cc_o='-Fo$@'

  4270.         _cc_e='-P'

  4271.         _flags_filter=icl_flags

  4272.         _ld_lib='lib%.a'

  4273.         _ld_path='-libpath:'

  4274.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4275.         _flags='-nologo -Qdiag-error:4044,10157'

  4276.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4277.         # with MSVC which enables it by default.

  4278.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4279.         disable stripping

  4280.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4281.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4282.         # the -? parameter gives the help output which contains an identifyable

  4283.         # string, while it gives an error in other modes.

  4284.         _type=lld-link

  4285.         # The link.exe mode doesn't have a switch for getting the version,

  4286.         # but we can force it back to gnu mode and get the version from there.

  4287.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4288.         _ld_o='-out:$@'

  4289.         _flags_filter=msvc_flags

  4290.         _ld_lib='lib%.a'

  4291.         _ld_path='-libpath:'

  4292.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4293.         _type=msvc

  4294.         _ident=$($_cc 2>&1 | head -n1)

  4295.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4296.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4297.         _cflags_speed="-O2"

  4298.         _cflags_size="-O1"

  4299.         _cflags_noopt="-O1"

  4300.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4301.             _ld_o='-out:$@'

  4302.         else

  4303.             _ld_o='-Fe$@'

  4304.         fi

  4305.         _cc_o='-Fo$@'

  4306.         _cc_e='-P -Fi$@'

  4307.         _flags_filter=msvc_flags

  4308.         _ld_lib='lib%.a'

  4309.         _ld_path='-libpath:'

  4310.         _flags='-nologo'

  4311.         disable stripping

  4312.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4313.         _type=cparser

  4314.         _ident=$($_cc --version | head -n1)

  4315.         _depflags='-MMD'

  4316.         _cflags_speed='-O4'

  4317.         _cflags_size='-O2'

  4318.         _flags_filter=cparser_flags

  4319.     fi

  4320. 

  4321.     eval ${pfx}_type=\$_type

  4322.     eval ${pfx}_ident=\$_ident

  4323. }

  4324. 

  4325. set_ccvars(){

  4326.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4327.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4328.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4329. 

  4330.     if [ -n "$_depflags" ]; then

  4331.         eval ${1}_DEPFLAGS=\$_depflags

  4332.     else

  4333.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4334.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4335.         eval DEP${1}FLAGS=\$_flags

  4336.     fi

  4337. }

  4338. 

  4339. probe_cc cc "$cc" "true"

  4340. cflags_filter=$_flags_filter

  4341. cflags_speed=$_cflags_speed

  4342. cflags_size=$_cflags_size

  4343. cflags_noopt=$_cflags_noopt

  4344. add_cflags $_flags $_cflags

  4345. cc_ldflags=$_ldflags

  4346. set_ccvars CC

  4347. set_ccvars CXX

  4348. 

  4349. probe_cc hostcc "$host_cc"

  4350. host_cflags_filter=$_flags_filter

  4351. host_cflags_speed=$_cflags_speed

  4352. add_host_cflags  $_flags $_cflags

  4353. set_ccvars HOSTCC

  4354. 

  4355. test -n "$cc_type" && enable $cc_type ||

  4356.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4357. 

  4358. : ${as_default:=$cc}

  4359. : ${objcc_default:=$cc}

  4360. : ${dep_cc_default:=$cc}

  4361. : ${ld_default:=$cc}

  4362. : ${host_ld_default:=$host_cc}

  4363. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4364. 

  4365. probe_cc as "$as"

  4366. asflags_filter=$_flags_filter

  4367. add_asflags $_flags $_cflags

  4368. set_ccvars AS

  4369. 

  4370. probe_cc objcc "$objcc"

  4371. objcflags_filter=$_flags_filter

  4372. add_objcflags $_flags $_cflags

  4373. set_ccvars OBJC

  4374. 

  4375. probe_cc ld "$ld"

  4376. ldflags_filter=$_flags_filter

  4377. add_ldflags $_flags $_ldflags

  4378. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4379. LD_O=${_ld_o-$LD_O}

  4380. LD_LIB=${_ld_lib-$LD_LIB}

  4381. LD_PATH=${_ld_path-$LD_PATH}

  4382. 

  4383. probe_cc hostld "$host_ld"

  4384. host_ldflags_filter=$_flags_filter

  4385. add_host_ldflags $_flags $_ldflags

  4386. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4387. 

  4388. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4389.     probe_cc depcc "$dep_cc"

  4390.     CCDEP=${_DEPCMD:-$DEPCMD}

  4391.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4392.     DEPCCFLAGS=$_flags

  4393. fi

  4394. 

  4395. if $ar 2>&1 | grep -q Microsoft; then

  4396.     arflags="-nologo"

  4397.     ar_o='-out:$@'

  4398. elif $ar 2>&1 | grep -q "\[D\] "; then

  4399.     arflags="rcD"

  4400.     ar_o='$@'

  4401. else

  4402.     arflags="rc"

  4403.     ar_o='$@'

  4404. fi

  4405. 

  4406. add_cflags $extra_cflags

  4407. add_cxxflags $extra_cxxflags

  4408. add_objcflags $extra_objcflags

  4409. add_asflags $extra_cflags

  4410. 

  4411. if test -n "$sysroot"; then

  4412.     case "$cc_type" in

  4413.         gcc|llvm_gcc|clang)

  4414.             add_cppflags --sysroot="$sysroot"

  4415.             add_ldflags --sysroot="$sysroot"

  4416.         ;;

  4417.     esac

  4418. fi

  4419. 

  4420. if test "$cpu" = host; then

  4421.     enabled cross_compile &&

  4422.         die "--cpu=host makes no sense when cross-compiling."

  4423. 

  4424.     case "$cc_type" in

  4425.         gcc|llvm_gcc)

  4426.             check_native(){

  4427.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4428.                 sed -n "/cc1.*$1=/{

  4429.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4430.                             p

  4431.                             q

  4432.                         }" $TMPE

  4433.             }

  4434.             cpu=$(check_native -march || check_native -mcpu)

  4435.         ;;

  4436.         clang)

  4437.             check_native(){

  4438.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4439.                 sed -n "/cc1.*-target-cpu /{

  4440.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4441.                             p

  4442.                             q

  4443.                         }" $TMPE

  4444.             }

  4445.             cpu=$(check_native -march)

  4446.         ;;

  4447.     esac

  4448. 

  4449.     test "${cpu:-host}" = host &&

  4450.         die "--cpu=host not supported with compiler $cc"

  4451. fi

  4452. 

  4453. # Deal with common $arch aliases

  4454. case "$arch" in

  4455.     aarch64|arm64)

  4456.         arch="aarch64"

  4457.     ;;

  4458.     arm*|iPad*|iPhone*)

  4459.         arch="arm"

  4460.     ;;

  4461.     mips*|IP*)

  4462.         case "$arch" in

  4463.         *el)

  4464.             add_cppflags -EL

  4465.             add_ldflags -EL

  4466.         ;;

  4467.         *eb)

  4468.             add_cppflags -EB

  4469.             add_ldflags -EB

  4470.         ;;

  4471.         esac

  4472.         arch="mips"

  4473.     ;;

  4474.     parisc*|hppa*)

  4475.         arch="parisc"

  4476.     ;;

  4477.     "Power Macintosh"|ppc*|powerpc*)

  4478.         arch="ppc"

  4479.     ;;

  4480.     s390|s390x)

  4481.         arch="s390"

  4482.     ;;

  4483.     sh4|sh)

  4484.         arch="sh4"

  4485.     ;;

  4486.     sun4*|sparc*)

  4487.         arch="sparc"

  4488.     ;;

  4489.     tilegx|tile-gx)

  4490.         arch="tilegx"

  4491.     ;;

  4492.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4493.         arch="x86"

  4494.     ;;

  4495. esac

  4496. 

  4497. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4498. enable $arch

  4499. 

  4500. # Add processor-specific flags

  4501. if enabled aarch64; then

  4502. 

  4503.     case $cpu in

  4504.         armv*)

  4505.             cpuflags="-march=$cpu"

  4506.         ;;

  4507.         *)

  4508.             cpuflags="-mcpu=$cpu"

  4509.         ;;

  4510.     esac

  4511. 

  4512. elif enabled alpha; then

  4513. 

  4514.     cpuflags="-mcpu=$cpu"

  4515. 

  4516. elif enabled arm; then

  4517. 

  4518.     check_arm_arch() {

  4519.         check_cpp_condition stddef.h \

  4520.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4521.             $cpuflags

  4522.     }

  4523. 

  4524.     probe_arm_arch() {

  4525.         if   check_arm_arch 4;        then echo armv4

  4526.         elif check_arm_arch 4T;       then echo armv4t

  4527.         elif check_arm_arch 5;        then echo armv5

  4528.         elif check_arm_arch 5E;       then echo armv5e

  4529.         elif check_arm_arch 5T;       then echo armv5t

  4530.         elif check_arm_arch 5TE;      then echo armv5te

  4531.         elif check_arm_arch 5TEJ;     then echo armv5te

  4532.         elif check_arm_arch 6;        then echo armv6

  4533.         elif check_arm_arch 6J;       then echo armv6j

  4534.         elif check_arm_arch 6K;       then echo armv6k

  4535.         elif check_arm_arch 6Z;       then echo armv6z

  4536.         elif check_arm_arch 6ZK;      then echo armv6zk

  4537.         elif check_arm_arch 6T2;      then echo armv6t2

  4538.         elif check_arm_arch 7;        then echo armv7

  4539.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4540.         elif check_arm_arch 7S;       then echo armv7-a

  4541.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4542.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4543.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4544.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4545.         fi

  4546.     }

  4547. 

  4548.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4549. 

  4550.     case $cpu in

  4551.         armv*)

  4552.             cpuflags="-march=$cpu"

  4553.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4554.         ;;

  4555.         *)

  4556.             cpuflags="-mcpu=$cpu"

  4557.             case $cpu in

  4558.                 cortex-a*)                               subarch=armv7a  ;;

  4559.                 cortex-r*)                               subarch=armv7r  ;;

  4560.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4561.                 arm11*)                                  subarch=armv6   ;;

  4562.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4563.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4564.                 *)                             subarch=$(probe_arm_arch) ;;

  4565.             esac

  4566.         ;;

  4567.     esac

  4568. 

  4569.     case "$subarch" in

  4570.         armv5t*)    enable fast_clz                ;;

  4571.         armv[6-8]*)

  4572.             enable fast_clz

  4573.             disabled fast_unaligned || enable fast_unaligned

  4574.             ;;

  4575.     esac

  4576. 

  4577. elif enabled avr32; then

  4578. 

  4579.     case $cpu in

  4580.         ap7[02]0[0-2])

  4581.             subarch="avr32_ap"

  4582.             cpuflags="-mpart=$cpu"

  4583.         ;;

  4584.         ap)

  4585.             subarch="avr32_ap"

  4586.             cpuflags="-march=$cpu"

  4587.         ;;

  4588.         uc3[ab]*)

  4589.             subarch="avr32_uc"

  4590.             cpuflags="-mcpu=$cpu"

  4591.         ;;

  4592.         uc)

  4593.             subarch="avr32_uc"

  4594.             cpuflags="-march=$cpu"

  4595.         ;;

  4596.     esac

  4597. 

  4598. elif enabled bfin; then

  4599. 

  4600.     cpuflags="-mcpu=$cpu"

  4601. 

  4602. elif enabled mips; then

  4603. 

  4604.     cpuflags="-march=$cpu"

  4605. 

  4606.     if [ "$cpu" != "generic" ]; then

  4607.         disable mips32r2

  4608.         disable mips32r5

  4609.         disable mips64r2

  4610.         disable mips32r6

  4611.         disable mips64r6

  4612.         disable loongson2

  4613.         disable loongson3

  4614. 

  4615.         case $cpu in

  4616.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4617.                 enable mips32r2

  4618.                 disable msa

  4619.             ;;

  4620.             p5600|i6400|p6600)

  4621.                 disable mipsdsp

  4622.                 disable mipsdspr2

  4623.             ;;

  4624.             loongson*)

  4625.                 enable loongson2

  4626.                 enable loongson3

  4627.                 enable local_aligned

  4628.                 enable simd_align_16

  4629.                 enable fast_64bit

  4630.                 enable fast_clz

  4631.                 enable fast_cmov

  4632.                 enable fast_unaligned

  4633.                 disable aligned_stack

  4634.                 disable mipsfpu

  4635.                 disable mipsdsp

  4636.                 disable mipsdspr2

  4637.                 case $cpu in

  4638.                     loongson3*)

  4639.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4640.                     ;;

  4641.                     loongson2e)

  4642.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4643.                     ;;

  4644.                     loongson2f)

  4645.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4646.                     ;;

  4647.                 esac

  4648.             ;;

  4649.             *)

  4650.                 # Unknown CPU. Disable everything.

  4651.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4652.                 disable mipsfpu

  4653.                 disable mipsdsp

  4654.                 disable mipsdspr2

  4655.                 disable msa

  4656.                 disable mmi

  4657.             ;;

  4658.         esac

  4659. 

  4660.         case $cpu in

  4661.             24kc)

  4662.                 disable mipsfpu

  4663.                 disable mipsdsp

  4664.                 disable mipsdspr2

  4665.             ;;

  4666.             24kf*)

  4667.                 disable mipsdsp

  4668.                 disable mipsdspr2

  4669.             ;;

  4670.             24kec|34kc|1004kc)

  4671.                 disable mipsfpu

  4672.                 disable mipsdspr2

  4673.             ;;

  4674.             24kef*|34kf*|1004kf*)

  4675.                 disable mipsdspr2

  4676.             ;;

  4677.             74kc)

  4678.                 disable mipsfpu

  4679.             ;;

  4680.             p5600)

  4681.                 enable mips32r5

  4682.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4683.             ;;

  4684.             i6400)

  4685.                 enable mips64r6

  4686.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4687.             ;;

  4688.             p6600)

  4689.                 enable mips64r6

  4690.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4691.             ;;

  4692.         esac

  4693.     else

  4694.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4695.         warn 'generic cpu selected'

  4696.     fi

  4697. 

  4698. elif enabled ppc; then

  4699. 

  4700.     disable ldbrx

  4701. 

  4702.     case $(tolower $cpu) in

  4703.         601|ppc601|powerpc601)

  4704.             cpuflags="-mcpu=601"

  4705.             disable altivec

  4706.         ;;

  4707.         603*|ppc603*|powerpc603*)

  4708.             cpuflags="-mcpu=603"

  4709.             disable altivec

  4710.         ;;

  4711.         604*|ppc604*|powerpc604*)

  4712.             cpuflags="-mcpu=604"

  4713.             disable altivec

  4714.         ;;

  4715.         g3|75*|ppc75*|powerpc75*)

  4716.             cpuflags="-mcpu=750"

  4717.             disable altivec

  4718.         ;;

  4719.         g4|745*|ppc745*|powerpc745*)

  4720.             cpuflags="-mcpu=7450"

  4721.             disable vsx

  4722.         ;;

  4723.         74*|ppc74*|powerpc74*)

  4724.             cpuflags="-mcpu=7400"

  4725.             disable vsx

  4726.         ;;

  4727.         g5|970|ppc970|powerpc970)

  4728.             cpuflags="-mcpu=970"

  4729.             disable vsx

  4730.         ;;

  4731.         power[3-6]*)

  4732.             cpuflags="-mcpu=$cpu"

  4733.             disable vsx

  4734.         ;;

  4735.         power[7-8]*)

  4736.             cpuflags="-mcpu=$cpu"

  4737.         ;;

  4738.         cell)

  4739.             cpuflags="-mcpu=cell"

  4740.             enable ldbrx

  4741.             disable vsx

  4742.         ;;

  4743.         e500mc)

  4744.             cpuflags="-mcpu=e500mc"

  4745.             disable altivec

  4746.         ;;

  4747.         e500v2)

  4748.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4749.             disable altivec

  4750.             disable dcbzl

  4751.         ;;

  4752.         e500)

  4753.             cpuflags="-mcpu=8540 -mhard-float"

  4754.             disable altivec

  4755.             disable dcbzl

  4756.         ;;

  4757.     esac

  4758. 

  4759. elif enabled sparc; then

  4760. 

  4761.     case $cpu in

  4762.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4763.             cpuflags="-mcpu=$cpu"

  4764.         ;;

  4765.         ultrasparc*|niagara[234])

  4766.             cpuflags="-mcpu=$cpu"

  4767.         ;;

  4768.     esac

  4769. 

  4770. elif enabled x86; then

  4771. 

  4772.     case $cpu in

  4773.         i[345]86|pentium)

  4774.             cpuflags="-march=$cpu"

  4775.             disable i686

  4776.             disable mmx

  4777.         ;;

  4778.         # targets that do NOT support nopl and conditional mov (cmov)

  4779.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4780.             cpuflags="-march=$cpu"

  4781.             disable i686

  4782.         ;;

  4783.         # targets that do support nopl and conditional mov (cmov)

  4784.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4785.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4786.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4787.             cpuflags="-march=$cpu"

  4788.             enable i686

  4789.             enable fast_cmov

  4790.         ;;

  4791.         # targets that do support conditional mov but on which it's slow

  4792.         pentium4|pentium4m|prescott|nocona)

  4793.             cpuflags="-march=$cpu"

  4794.             enable i686

  4795.             disable fast_cmov

  4796.         ;;

  4797.     esac

  4798. 

  4799. fi

  4800. 

  4801. if [ "$cpu" != generic ]; then

  4802.     add_cflags  $cpuflags

  4803.     add_asflags $cpuflags

  4804.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4805. fi

  4806. 

  4807. # compiler sanity check

  4808. check_exec <<EOF

  4809. int main(void){ return 0; }

  4810. EOF

  4811. if test "$?" != 0; then

  4812.     echo "$cc is unable to create an executable file."

  4813.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4814.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4815.         echo "Only do this if you know what cross compiling means."

  4816.     fi

  4817.     die "C compiler test failed."

  4818. fi

  4819. 

  4820. add_cppflags -D_ISOC99_SOURCE

  4821. add_cxxflags -D__STDC_CONSTANT_MACROS

  4822. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4823. 

  4824. # some compilers silently accept -std=c11, so we also need to check that the

  4825. # version macro is defined properly

  4826. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4827.     add_cflags -std=c11 ||

  4828.     check_cflags -std=c99

  4829. 

  4830. check_cppflags -D_FILE_OFFSET_BITS=64

  4831. check_cppflags -D_LARGEFILE_SOURCE

  4832. 

  4833. add_host_cppflags -D_ISOC99_SOURCE

  4834. check_host_cflags -std=c99

  4835. check_host_cflags -Wall

  4836. check_host_cflags $host_cflags_speed

  4837. 

  4838. check_64bit(){

  4839.     arch32=$1

  4840.     arch64=$2

  4841.     expr=$3

  4842.     check_code cc "" "int test[2*($expr) - 1]" &&

  4843.         subarch=$arch64 || subarch=$arch32

  4844.     enable $subarch

  4845. }

  4846. 

  4847. case "$arch" in

  4848.     aarch64|alpha|ia64)

  4849.         enabled shared && enable_weak pic

  4850.     ;;

  4851.     mips)

  4852.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4853.         enabled shared && enable_weak pic

  4854.     ;;

  4855.     parisc)

  4856.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4857.         enabled shared && enable_weak pic

  4858.     ;;

  4859.     ppc)

  4860.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4861.         enabled shared && enable_weak pic

  4862.     ;;

  4863.     s390)

  4864.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4865.         enabled shared && enable_weak pic

  4866.     ;;

  4867.     sparc)

  4868.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4869.         enabled shared && enable_weak pic

  4870.     ;;

  4871.     x86)

  4872.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4873.         # Treat x32 as x64 for now. Note it also needs pic if shared

  4874.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4875.             subarch=x86_64 && enable x86_64 && disable x86_32

  4876.         if enabled x86_64; then

  4877.             enabled shared && enable_weak pic

  4878.             objformat=elf64

  4879.         fi

  4880.     ;;

  4881. esac

  4882. 

  4883. # OS specific

  4884. case $target_os in

  4885.     aix)

  4886.         SHFLAGS=-shared

  4887.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4888.         enabled shared && add_ldflags -Wl,-brtl

  4889.         arflags='-Xany -r -c'

  4890.         ;;

  4891.     android)

  4892.         disable symver

  4893.         enable section_data_rel_ro

  4894.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4895.         SLIB_INSTALL_LINKS=

  4896.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4897.         ;;

  4898.     haiku)

  4899.         prefix_default="/boot/common"

  4900.         network_extralibs="-lnetwork"

  4901.         host_extralibs=

  4902.         ;;

  4903.     sunos)

  4904.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4905.         enabled x86 && append SHFLAGS -mimpure-text

  4906.         network_extralibs="-lsocket -lnsl"

  4907.         add_cppflags -D__EXTENSIONS__

  4908.         # When using suncc to build, the Solaris linker will mark

  4909.         # an executable with each instruction set encountered by

  4910.         # the Solaris assembler.  As our libraries contain their own

  4911.         # guards for processor-specific code, instead suppress

  4912.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4913.         enabled_all suncc x86 &&

  4914.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4915.             add_ldflags -Wl,-M,mapfile

  4916.         nm_default='nm -P -g'

  4917.         version_script='-M'

  4918.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4919.         ;;

  4920.     netbsd)

  4921.         disable symver

  4922.         oss_indev_extralibs="-lossaudio"

  4923.         oss_outdev_extralibs="-lossaudio"

  4924.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4925.         ;;

  4926.     openbsd|bitrig)

  4927.         disable symver

  4928.         SHFLAGS='-shared'

  4929.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4930.         SLIB_INSTALL_LINKS=

  4931.         oss_indev_extralibs="-lossaudio"

  4932.         oss_outdev_extralibs="-lossaudio"

  4933.         ;;

  4934.     dragonfly)

  4935.         disable symver

  4936.         ;;

  4937.     freebsd)

  4938.         ;;

  4939.     bsd/os)

  4940.         add_extralibs -lpoll -lgnugetopt

  4941.         strip="strip -d"

  4942.         ;;

  4943.     darwin)

  4944.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4945.         install_name_dir_default='$(SHLIBDIR)'

  4946.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4947.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4948.         strip="${strip} -x"

  4949.         add_ldflags -Wl,-dynamic,-search_paths_first

  4950.         check_cflags -Werror=partial-availability

  4951.         SLIBSUF=".dylib"

  4952.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4953.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4954.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4955.         enabled_any pic shared x86_64 ||

  4956.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4957.         check_header dispatch/dispatch.h &&

  4958.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4959.         if test -n "$sysroot"; then

  4960.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  4961.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  4962.         fi

  4963.         version_script='-exported_symbols_list'

  4964.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4965.         ;;

  4966.     msys*)

  4967.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4968.         ;;

  4969.     mingw32*|mingw64*)

  4970.         target_os=mingw32

  4971.         if enabled shared; then

  4972.             # Cannot build both shared and static libs when using dllimport.

  4973.             disable static

  4974.         fi

  4975.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4976.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4977.         shlibdir_default="$bindir_default"

  4978.         SLIBPREF=""

  4979.         SLIBSUF=".dll"

  4980.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4981.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4982.         SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4983.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4984.         SLIB_INSTALL_LINKS=

  4985.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4986.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4987.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4988.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  4989.         enabled x86_64 && objformat="win64" || objformat="win32"

  4990.         ranlib=:

  4991.         enable dos_paths

  4992.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4993.         # Lets work around some stupidity in binutils.

  4994.         # ld will strip relocations from executables even though we need them

  4995.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4996.         # however ld then forgets what the entry point should be (oops) so we

  4997.         # have to manually (re)set it.

  4998.         if enabled x86_32; then

  4999.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  5000.         elif enabled x86_64; then

  5001.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5002.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5003.             # Set image base >4GB for extra entropy with HEASLR

  5004.             add_ldexeflags -Wl,--image-base,0x140000000

  5005.             append SHFLAGS -Wl,--image-base,0x180000000

  5006.         fi

  5007.         ;;

  5008.     win32|win64)

  5009.         disable symver

  5010.         if enabled shared; then

  5011.             # Link to the import library instead of the normal static library

  5012.             # for shared libs.

  5013.             LD_LIB='%.lib'

  5014.             # Cannot build both shared and static libs with MSVC or icl.

  5015.             disable static

  5016.         fi

  5017.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5018.         shlibdir_default="$bindir_default"

  5019.         SLIBPREF=""

  5020.         SLIBSUF=".dll"

  5021.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5022.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5023.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5024.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5025.         SLIB_INSTALL_LINKS=

  5026.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5027.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5028.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5029.         enabled x86_64 && objformat="win64" || objformat="win32"

  5030.         ranlib=:

  5031.         enable dos_paths

  5032.         ;;

  5033.     cygwin*)

  5034.         target_os=cygwin

  5035.         shlibdir_default="$bindir_default"

  5036.         SLIBPREF="cyg"

  5037.         SLIBSUF=".dll"

  5038.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5039.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5040.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5041.         SLIB_INSTALL_LINKS=

  5042.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5043.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5044.         enabled x86_64 && objformat="win64" || objformat="win32"

  5045.         enable dos_paths

  5046.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5047.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5048.         ;;

  5049.     *-dos|freedos|opendos)

  5050.         network_extralibs="-lsocket"

  5051.         objformat="coff"

  5052.         enable dos_paths

  5053.         add_cppflags -U__STRICT_ANSI__

  5054.         ;;

  5055.     linux)

  5056.         enable section_data_rel_ro

  5057.         enabled_any arm aarch64 && enable_weak linux_perf

  5058.         ;;

  5059.     irix*)

  5060.         target_os=irix

  5061.         ranlib="echo ignoring ranlib"

  5062.         ;;

  5063.     os/2*)

  5064.         strip="lxlite -CS"

  5065.         striptype=""

  5066.         objformat="aout"

  5067.         add_cppflags -D_GNU_SOURCE

  5068.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5069.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5070.         LIBSUF="_s.a"

  5071.         SLIBPREF=""

  5072.         SLIBSUF=".dll"

  5073.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5074.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5075.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5076.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5077.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5078.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5079.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5080.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5081.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5082.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5083.         SLIB_INSTALL_LINKS=

  5084.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5085.         enable dos_paths

  5086.         enable_weak os2threads

  5087.         ;;

  5088.     gnu/kfreebsd)

  5089.         add_cppflags -D_BSD_SOURCE

  5090.         ;;

  5091.     gnu)

  5092.         ;;

  5093.     qnx)

  5094.         add_cppflags -D_QNX_SOURCE

  5095.         network_extralibs="-lsocket"

  5096.         ;;

  5097.     symbian)

  5098.         SLIBSUF=".dll"

  5099.         enable dos_paths

  5100.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5101.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5102.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5103.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5104.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5105.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5106.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5107.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5108.         ;;

  5109.     minix)

  5110.         ;;

  5111.     none)

  5112.         ;;

  5113.     *)

  5114.         die "Unknown OS '$target_os'."

  5115.         ;;

  5116. esac

  5117. 

  5118. # test if creating links works

  5119. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5120. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5121. mkdir "$link_dest"

  5122. $ln_s "$link_dest" "$link_name"

  5123. touch "$link_dest/test_file"

  5124. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5125.     # create link to source path

  5126.     [ -e src ] && rm src

  5127.     $ln_s "$source_path" src

  5128.     source_link=src

  5129. else

  5130.     # creating directory links doesn't work

  5131.     # fall back to using the full source path

  5132.     source_link="$source_path"

  5133. fi

  5134. # cleanup

  5135. rm -r "$link_dest"

  5136. rm -r "$link_name"

  5137. 

  5138. # determine libc flavour

  5139. 

  5140. probe_libc(){

  5141.     pfx=$1

  5142.     pfx_no_=${pfx%_}

  5143.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5144.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5145.         eval ${pfx}libc_type=uclibc

  5146.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5147.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5148.         eval ${pfx}libc_type=glibc

  5149.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5150.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5151.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5152.         eval ${pfx}libc_type=newlib

  5153.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5154.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5155.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5156.         eval ${pfx}libc_type=mingw64

  5157.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5158.             add_compat msvcrt/snprintf.o

  5159.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5160.         fi

  5161.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5162.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5163.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5164.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5165.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5166.         eval ${pfx}libc_type=mingw32

  5167.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5168.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5169.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5170.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5171.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5172.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5173.         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&

  5174.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5175.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5176.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5177.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5178.         eval ${pfx}libc_type=msvcrt

  5179.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5180.             if [ "$pfx" = host_ ]; then

  5181.                 add_host_cppflags -Dsnprintf=_snprintf

  5182.             else

  5183.                 add_compat strtod.o strtod=avpriv_strtod

  5184.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5185.                                              _snprintf=avpriv_snprintf  \

  5186.                                              vsnprintf=avpriv_vsnprintf

  5187.             fi

  5188.         fi

  5189.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5190.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5191.         # 0x601 by default unless something else is set by the user.

  5192.         # This can easily lead to us detecting functions only present

  5193.         # in such new versions and producing binaries requiring windows 7.0.

  5194.         # Therefore explicitly set the default to XP unless the user has

  5195.         # set something else on the command line.

  5196.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5197.         # family. For these cases, configure is free to use any functions

  5198.         # found in the SDK headers by default. (Alternatively, we could force

  5199.         # _WIN32_WINNT to 0x0602 in that case.)

  5200.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5201.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5202. #ifdef WINAPI_FAMILY

  5203. #include <winapifamily.h>

  5204. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5205. #error not desktop

  5206. #endif

  5207. #endif

  5208. EOF

  5209.         if [ "$pfx" = "" ]; then

  5210.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5211.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5212.         fi

  5213.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5214.         eval ${pfx}libc_type=klibc

  5215.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5216.         eval ${pfx}libc_type=bionic

  5217.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5218.         eval ${pfx}libc_type=solaris

  5219.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5220.     fi

  5221.     check_${pfx}cc <<EOF

  5222. #include <time.h>

  5223. void *v = localtime_r;

  5224. EOF

  5225. 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

  5226. #include <time.h>

  5227. void *v = localtime_r;

  5228. EOF

  5229. 

  5230.     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}

  5231. }

  5232. 

  5233. probe_libc

  5234. probe_libc host_

  5235. 

  5236. # hacks for compiler/libc/os combinations

  5237. 

  5238. case $libc_type in

  5239.     bionic)

  5240.         add_compat strtod.o strtod=avpriv_strtod

  5241.         ;;

  5242. esac

  5243. 

  5244. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5245.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5246. 

  5247. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5248. 

  5249. set_default libdir

  5250. : ${shlibdir_default:="$libdir"}

  5251. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5252. 

  5253. set_default $PATHS_LIST

  5254. set_default nm

  5255. 

  5256. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5257. 

  5258. enable_weak_pic() {

  5259.     disabled pic && return

  5260.     enable pic

  5261.     add_cppflags -DPIC

  5262.     case "$target_os" in

  5263.     mingw*|cygwin*|win*)

  5264.         ;;

  5265.     *)

  5266.         add_cflags -fPIC

  5267.         add_asflags -fPIC

  5268.         ;;

  5269.     esac

  5270. }

  5271. 

  5272. enabled pic && enable_weak_pic

  5273. 

  5274. check_cc <<EOF || die "Symbol mangling check failed."

  5275. int ff_extern;

  5276. EOF

  5277. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5278. extern_prefix=${sym%%ff_extern*}

  5279. 

  5280. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5281. 

  5282. _restrict=

  5283. for restrict_keyword in restrict __restrict__ __restrict; do

  5284.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5285. void foo(char * $restrict_keyword p);

  5286. EOF

  5287. done

  5288. 

  5289. check_cc <<EOF && enable pragma_deprecated

  5290. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5291. EOF

  5292. 

  5293. check_cc <<EOF || die "endian test failed"

  5294. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5295. EOF

  5296. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5297. 

  5298. check_cc <<EOF && enable const_nan

  5299. #include <math.h>

  5300. void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }

  5301. EOF

  5302. 

  5303. if ! enabled ppc64 || enabled bigendian; then

  5304.     disable vsx

  5305. fi

  5306. 

  5307. check_gas() {

  5308.     log "check_gas using '$as' as AS"

  5309.     # :vararg is used on aarch64, arm and ppc altivec

  5310.     check_as <<EOF || return 1

  5311. .macro m n, y:vararg=0

  5312. \n: .int \y

  5313. .endm

  5314. m x

  5315. EOF

  5316.     # .altmacro is only used in arm asm

  5317.     ! enabled arm || check_as <<EOF || return 1

  5318. .altmacro

  5319. EOF

  5320.     enable gnu_as

  5321.     return 0

  5322. }

  5323. 

  5324. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5325.     nogas=:

  5326.     enabled_any arm aarch64 && nogas=die

  5327.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5328.     as_noop=-v

  5329. 

  5330.     case $as_type in

  5331.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5332.         gcc)  gaspp_as_type=gas ;;

  5333.         *)    gaspp_as_type=$as_type ;;

  5334.     esac

  5335. 

  5336.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5337. 

  5338.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5339.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5340.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5341. 

  5342.     if ! check_gas ; then

  5343.         as=${gas:=$as}

  5344.         check_gas || \

  5345.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5346.     fi

  5347. 

  5348.     check_as <<EOF && enable as_func

  5349. .func test

  5350. .endfunc

  5351. EOF

  5352. fi

  5353. 

  5354. check_inline_asm inline_asm_labels '"1:\n"'

  5355. 

  5356. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5357. 

  5358. if enabled aarch64; then

  5359.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5360.     # internal assembler in clang 3.3 does not support this instruction

  5361.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5362.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5363. 

  5364.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5365. 

  5366. elif enabled alpha; then

  5367. 

  5368.     check_cflags -mieee

  5369. 

  5370. elif enabled arm; then

  5371. 

  5372.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5373. 

  5374.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5375. float func(float a, float b){ return a+b; }

  5376. EOF

  5377. 

  5378.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5379. 

  5380.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5381.         enable vfp_args

  5382.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5383.         enable vfp_args

  5384.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5385.         case "${cross_prefix:-$cc}" in

  5386.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5387.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5388. __asm__ (".eabi_attribute 28, 1");

  5389. int main(void) { return 0; }

  5390. EOF

  5391.         esac

  5392.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5393.     fi

  5394. 

  5395.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5396.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5397.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5398.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5399.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5400.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5401.     enabled setend  && check_insn setend  'setend be'

  5402. 

  5403.     [ $target_os = linux ] || [ $target_os = android ] ||

  5404.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5405.             $ARCH_EXT_LIST_ARM

  5406. 

  5407.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5408. 

  5409.     check_as <<EOF && enable as_arch_directive

  5410. .arch armv7-a

  5411. EOF

  5412.     check_as <<EOF && enable as_fpu_directive

  5413. .fpu neon

  5414. EOF

  5415. 

  5416.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5417.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5418.         check_as <<EOF && enable as_object_arch

  5419. .object_arch armv4

  5420. EOF

  5421. 

  5422.     # MS armasm fails to assemble our PIC constructs

  5423.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5424. 

  5425. elif enabled mips; then

  5426. 

  5427.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5428.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5429.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5430. 

  5431.     # Enable minimum ISA based on selected options

  5432.     if enabled mips64; then

  5433.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5434.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5435.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5436.     else

  5437.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5438.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5439.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5440.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5441.     fi

  5442. 

  5443.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5444.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5445.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5446.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5447.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5448. 

  5449.     if enabled bigendian && enabled msa; then

  5450.         disable msa

  5451.     fi

  5452. 

  5453. elif enabled parisc; then

  5454. 

  5455.     if enabled gcc; then

  5456.         case $($cc -dumpversion) in

  5457.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5458.         esac

  5459.     fi

  5460. 

  5461. elif enabled ppc; then

  5462. 

  5463.     enable local_aligned

  5464. 

  5465.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5466.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5467.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5468.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5469. 

  5470.     if enabled altivec; then

  5471.         check_cflags -maltivec -mabi=altivec

  5472. 

  5473.         # check if our compiler supports Motorola AltiVec C API

  5474.         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };

  5475.                                  vector signed int v2 = (vector signed int) { 1 };

  5476.                                  v1 = vec_add(v1, v2);" ||

  5477.             disable altivec

  5478. 

  5479.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5480.     fi

  5481. 

  5482.     if enabled vsx; then

  5483.         check_cflags -mvsx &&

  5484.         check_code cc altivec.h "int v[4] = { 0 };

  5485.                                  vector signed int v1 = vec_vsx_ld(0, v);" ||

  5486.             disable vsx

  5487.     fi

  5488. 

  5489.     if enabled power8; then

  5490.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5491.     fi

  5492. 

  5493. elif enabled x86; then

  5494. 

  5495.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5496.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5497. 

  5498.     enable local_aligned

  5499. 

  5500.     # check whether EBP is available on x86

  5501.     # As 'i' is stored on the stack, this program will crash

  5502.     # if the base pointer is used to access it because the

  5503.     # base pointer is cleared in the inline assembly code.

  5504.     check_exec_crash <<EOF && enable ebp_available

  5505. volatile int i=0;

  5506. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5507. return i;

  5508. EOF

  5509. 

  5510.     # check whether EBX is available on x86

  5511.     check_inline_asm ebx_available '""::"b"(0)' &&

  5512.         check_inline_asm ebx_available '"":::"%ebx"'

  5513. 

  5514.     # check whether xmm clobbers are supported

  5515.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5516. 

  5517.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5518.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5519. 

  5520.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5521.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5522.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5523. 

  5524.     probe_x86asm(){

  5525.         x86asmexe_probe=$1

  5526.         if check_cmd $x86asmexe_probe -v; then

  5527.             x86asmexe=$x86asmexe_probe

  5528.             x86asm_type=nasm

  5529.             x86asm_debug="-g -F dwarf"

  5530.             X86ASMDEP=

  5531.             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5532.         elif check_cmd $x86asmexe_probe --version; then

  5533.             x86asmexe=$x86asmexe_probe

  5534.             x86asm_type=yasm

  5535.             x86asm_debug="-g dwarf2"

  5536.             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5537.             X86ASM_DEPFLAGS=

  5538.         fi

  5539.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5540.     }

  5541. 

  5542.     if ! disabled_any asm mmx x86asm; then

  5543.         disable x86asm

  5544.         for program in $x86asmexe nasm yasm; do

  5545.             probe_x86asm $program && break

  5546.         done

  5547.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5548.         X86ASMFLAGS="-f $objformat"

  5549.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5550.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5551.         case "$objformat" in

  5552.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5553.         esac

  5554. 

  5555.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5556.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5557.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5558.         check_x86asm "CPU amdnop" || disable cpunop

  5559.     fi

  5560. 

  5561.     case "$cpu" in

  5562.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5563.             disable fast_clz

  5564.         ;;

  5565.     esac

  5566. 

  5567. fi

  5568. 

  5569. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5570. 

  5571. check_ldflags -Wl,--as-needed

  5572. check_ldflags -Wl,-z,noexecstack

  5573. 

  5574. if ! disabled network; then

  5575.     check_func getaddrinfo $network_extralibs

  5576.     check_func inet_aton $network_extralibs

  5577. 

  5578.     check_type netdb.h "struct addrinfo"

  5579.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5580.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5581.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5582.     check_type poll.h "struct pollfd"

  5583.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5584.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5585.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5586.     check_type netinet/in.h "struct sockaddr_in6"

  5587.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5588.     check_type "sys/types.h sys/socket.h" socklen_t

  5589. 

  5590.     # Prefer arpa/inet.h over winsock2

  5591.     if check_header arpa/inet.h ; then

  5592.         check_func closesocket

  5593.     elif check_header winsock2.h ; then

  5594.         check_func_headers winsock2.h closesocket -lws2 &&

  5595.             network_extralibs="-lws2" ||

  5596.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5597.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5598.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5599. 

  5600.         check_type ws2tcpip.h socklen_t

  5601.         check_type ws2tcpip.h "struct addrinfo"

  5602.         check_type ws2tcpip.h "struct group_source_req"

  5603.         check_type ws2tcpip.h "struct ip_mreq_source"

  5604.         check_type ws2tcpip.h "struct ipv6_mreq"

  5605.         check_type winsock2.h "struct pollfd"

  5606.         check_struct winsock2.h "struct sockaddr" sa_len

  5607.         check_type ws2tcpip.h "struct sockaddr_in6"

  5608.         check_type ws2tcpip.h "struct sockaddr_storage"

  5609.     else

  5610.         disable network

  5611.     fi

  5612. fi

  5613. 

  5614. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5615. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5616. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5617. check_builtin sarestart signal.h "SA_RESTART"

  5618. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5619. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5620. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5621. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5622. 

  5623. case "$custom_allocator" in

  5624.     jemalloc)

  5625.         # jemalloc by default does not use a prefix

  5626.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5627.     ;;

  5628.     tcmalloc)

  5629.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5630.         malloc_prefix=tc_

  5631.     ;;

  5632. esac

  5633. 

  5634. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5635. check_func  ${malloc_prefix}memalign            && enable memalign

  5636. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5637. 

  5638. check_func  access

  5639. check_func_headers stdlib.h arc4random

  5640. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5641. check_func  fcntl

  5642. check_func  fork

  5643. check_func  gethrtime

  5644. check_func  getopt

  5645. check_func  getrusage

  5646. check_func  gettimeofday

  5647. check_func  isatty

  5648. check_func  mkstemp

  5649. check_func  mmap

  5650. check_func  mprotect

  5651. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5652. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5653. check_func  sched_getaffinity

  5654. check_func  setrlimit

  5655. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5656. check_func  strerror_r

  5657. check_func  sysconf

  5658. check_func  sysctl

  5659. check_func  usleep

  5660. 

  5661. check_func_headers conio.h kbhit

  5662. check_func_headers io.h setmode

  5663. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5664. check_func_headers mach/mach_time.h mach_absolute_time

  5665. check_func_headers stdlib.h getenv

  5666. check_func_headers sys/stat.h lstat

  5667. 

  5668. check_func_headers windows.h GetProcessAffinityMask

  5669. check_func_headers windows.h GetProcessTimes

  5670. check_func_headers windows.h GetSystemTimeAsFileTime

  5671. check_func_headers windows.h LoadLibrary

  5672. check_func_headers windows.h MapViewOfFile

  5673. check_func_headers windows.h PeekNamedPipe

  5674. check_func_headers windows.h SetConsoleTextAttribute

  5675. check_func_headers windows.h SetConsoleCtrlHandler

  5676. check_func_headers windows.h Sleep

  5677. check_func_headers windows.h VirtualAlloc

  5678. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5679. check_func_headers glob.h glob

  5680. enabled xlib &&

  5681.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5682. 

  5683. check_header direct.h

  5684. check_header dirent.h

  5685. check_header dxgidebug.h

  5686. check_header dxva.h

  5687. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5688. check_header io.h

  5689. check_header libcrystalhd/libcrystalhd_if.h

  5690. check_header malloc.h

  5691. check_header net/udplite.h

  5692. check_header poll.h

  5693. check_header sys/param.h

  5694. check_header sys/resource.h

  5695. check_header sys/select.h

  5696. check_header sys/time.h

  5697. check_header sys/un.h

  5698. check_header termios.h

  5699. check_header unistd.h

  5700. check_header valgrind/valgrind.h

  5701. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5702. check_header windows.h

  5703. check_header X11/extensions/XvMClib.h

  5704. check_header asm/types.h

  5705. 

  5706. # it seems there are versions of clang in some distros that try to use the

  5707. # gcc headers, which explodes for stdatomic

  5708. # so we also check that atomics actually work here

  5709. check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5710. 

  5711. check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32

  5712. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5713. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5714. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5715. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5716. 

  5717. enabled appkit       && check_apple_framework AppKit

  5718. enabled audiotoolbox && check_apple_framework AudioToolbox

  5719. enabled avfoundation && check_apple_framework AVFoundation

  5720. enabled coreimage    && check_apple_framework CoreImage

  5721. enabled videotoolbox && check_apple_framework VideoToolbox

  5722. 

  5723. check_apple_framework CoreFoundation

  5724. check_apple_framework CoreMedia

  5725. check_apple_framework CoreVideo

  5726. 

  5727. enabled avfoundation && {

  5728.     disable coregraphics applicationservices

  5729.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5730.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5731. 

  5732. enabled videotoolbox && {

  5733.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5734.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5735. }

  5736. 

  5737. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5738. 

  5739. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5740. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5741. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5742. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5743. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5744. 

  5745. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5746. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5747. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5748. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5749. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5750. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5751. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5752. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5753. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5754. 

  5755. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5756. 

  5757. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5758. 

  5759. if ! disabled w32threads && ! enabled pthreads; then

  5760.     check_func_headers "windows.h process.h" _beginthreadex &&

  5761.         enable w32threads || disable w32threads

  5762.     if ! enabled w32threads && enabled winrt; then

  5763.         check_func_headers "windows.h" CreateThread &&

  5764.             enable w32threads || disable w32threads

  5765.     fi

  5766. fi

  5767. 

  5768. # check for some common methods of building with pthread support

  5769. # do this before the optional library checks as some of them require pthreads

  5770. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5771.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5772.        check_lib pthreads pthread.h pthread_create -pthread; then

  5773.         add_cflags -pthread

  5774.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5775.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5776.         add_cflags -pthreads

  5777.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5778.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5779.         add_cflags -ldl -pthread

  5780.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5781.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5782.         :

  5783.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5784.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5785.         :

  5786.     elif check_func pthread_join && check_func pthread_create; then

  5787.         enable pthreads

  5788.     fi

  5789.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5790. 

  5791.     if enabled pthreads; then

  5792.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5793.         check_func pthread_cancel $pthreads_extralibs

  5794.     fi

  5795. fi

  5796. 

  5797. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5798. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5799. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5800. 

  5801. # On some systems dynamic loading requires no extra linker flags

  5802. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5803. 

  5804. check_lib libm math.h sin -lm

  5805. 

  5806. atan2f_args=2

  5807. copysign_args=2

  5808. hypot_args=2

  5809. ldexpf_args=2

  5810. powf_args=2

  5811. 

  5812. for func in $MATH_FUNCS; do

  5813.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5814. done

  5815. 

  5816. for func in $COMPLEX_FUNCS; do

  5817.     eval check_complexfunc $func \${${func}_args:-1}

  5818. done

  5819. 

  5820. # these are off by default, so fail if requested and not available

  5821. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5822. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5823. enabled decklink          && { require_header DeckLinkAPI.h &&

  5824.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5825. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5826. enabled frei0r            && require_header frei0r.h

  5827. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5828. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5829. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5830. enabled ladspa            && require_header ladspa.h

  5831. enabled lv2               && require_pkg_config lv2 lilv-0 "lilv-0/lilv/lilv.h" lilv_world_new

  5832. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5833. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5834. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5835. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5836. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5837.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5838.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5839. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5840. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5841. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5842. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5843.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5844.                                  warn "using libfdk without pkg-config"; } }

  5845. 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"

  5846. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5847. enabled fontconfig        && enable libfontconfig

  5848. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5849. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5850. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5851. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5852.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5853. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5854.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5855.                                done || die "ERROR: libgsm not found"; }

  5856. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5857. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5858. # While it may appear that require is being used as a pkg-config

  5859. # fallback for libmfx, it is actually being used to detect a different

  5860. # installation route altogether.  If libmfx is installed via the Intel

  5861. # Media SDK or Intel Media Server Studio, these don't come with

  5862. # pkg-config support.  Instead, users should make sure that the build

  5863. # can find the libraries and headers through other means.

  5864. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5865.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  5866. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5867. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5868. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  5869. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5870.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5871.                                die "ERROR: libnpp not found"; }

  5872. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5873. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5874. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5875.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5876.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5877.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  5878. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  5879. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  5880.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  5881. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  5882. enabled libopus           && {

  5883.     enabled libopus_decoder && {

  5884.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  5885.     }

  5886.     enabled libopus_encoder && {

  5887.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  5888.     }

  5889. }

  5890. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  5891. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5892. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  5893. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  5894. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  5895. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  5896.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  5897. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  5898. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  5899. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  5900. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  5901. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  5902. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5903. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5904.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5905.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5906. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  5907. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5908. enabled libvmaf           && require_pkg_config libvmaf libvmaf libvmaf.h compute_vmaf

  5909. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5910. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  5911.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5912. 

  5913. enabled libvpx            && {

  5914.     enabled libvpx_vp8_decoder && {

  5915.         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5916.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5917.                 die "ERROR: libvpx decoder version must be >=1.4.0";

  5918.     }

  5919.     enabled libvpx_vp8_encoder && {

  5920.         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5921.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5922.                 die "ERROR: libvpx encoder version must be >=1.4.0";

  5923.     }

  5924.     enabled libvpx_vp9_decoder && {

  5925.         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5926.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" -lvpx

  5927.     }

  5928.     enabled libvpx_vp9_encoder && {

  5929.         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5930.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" -lvpx

  5931.     }

  5932.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5933.         die "libvpx enabled but no supported decoders found"

  5934.     fi

  5935. }

  5936. 

  5937. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5938. enabled libwebp           && {

  5939.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5940.     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  5941. enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  5942.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5943.                                  warn "using libx264 without pkg-config"; } } &&

  5944.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  5945.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5946.                                enable libx262; }

  5947. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  5948.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  5949. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  5950. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5951. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5952. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  5953. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  5954.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5955.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5956. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  5957. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5958. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5959.                                { ! enabled cross_compile &&

  5960.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5961.                                  add_ldflags -L/opt/vc/lib/ &&

  5962.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5963.                                die "ERROR: mmal not found" &&

  5964.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5965. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5966.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5967.                                die "ERROR: openal not found"; } &&

  5968.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5969.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5970. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5971.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5972.                                die "ERROR: opencl not found"; } &&

  5973.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5974.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5975.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5976. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5977.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5978.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5979.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5980.                                die "ERROR: opengl not found."

  5981.                              }

  5982. enabled omx               && require_header OMX_Core.h

  5983. enabled omx_rpi           && { check_header OMX_Core.h ||

  5984.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  5985.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  5986. enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  5987.                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  5988.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5989.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5990.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5991.                                die "ERROR: openssl not found"; }

  5992. enabled rkmpp             && { { require_pkg_config rkmpp rockchip_mpp rockchip/rk_mpi.h mpp_create ||

  5993.                                  die "ERROR : Rockchip MPP was not found."; } &&

  5994.                                { check_func_headers rockchip/rk_mpi_cmd.h "MPP_DEC_GET_FREE_PACKET_SLOT_COUNT" ||

  5995.                                  die "ERROR: Rockchip MPP is outdated, please get a more recent one."; } &&

  5996.                                { enabled libdrm ||

  5997.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  5998.                              }

  5999. 

  6000. if enabled gcrypt; then

  6001.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6002.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6003.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6004.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6005.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6006.             die "ERROR: gcrypt not found"

  6007.         add_cflags $gcrypt_cflags

  6008.     else

  6009.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6010.     fi

  6011. fi

  6012. 

  6013. if enabled sdl2; then

  6014.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6015.     if test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent; then

  6016.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6017.             disable sdl2

  6018.     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6019.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6020.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6021.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6022.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6023.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags &&

  6024.             enable sdl2

  6025.     fi

  6026.     if test $target_os = "mingw32"; then

  6027.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6028.     fi

  6029. fi

  6030. 

  6031. if enabled decklink; then

  6032.     case $target_os in

  6033.         mingw32*|mingw64*|win32|win64)

  6034.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6035.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6036.             ;;

  6037.     esac

  6038. fi

  6039. 

  6040. enabled securetransport &&

  6041.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6042.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6043.         disable securetransport

  6044. 

  6045. enabled securetransport &&

  6046.     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"

  6047. 

  6048. enabled schannel &&

  6049.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6050.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6051.     schannel_extralibs="-lsecur32" ||

  6052.         disable schannel

  6053. 

  6054. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6055. enabled makeinfo \

  6056.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6057.     && enable makeinfo_html || disable makeinfo_html

  6058. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6059. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6060. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6061. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6062. 

  6063. # check V4L2 codecs available in the API

  6064. check_header linux/fb.h

  6065. check_header linux/videodev2.h

  6066. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6067. check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m

  6068. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m

  6069. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m

  6070. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m

  6071. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m

  6072. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m

  6073. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m

  6074. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m

  6075. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m

  6076. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m

  6077. 

  6078. check_header sys/videoio.h

  6079. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6080. 

  6081. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6082. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6083. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6084. # w32api 3.12 had it defined wrong

  6085. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6086. 

  6087. check_type "dshow.h" IBaseFilter

  6088. 

  6089. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6090. check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||

  6091.     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||

  6092.     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||

  6093.     check_header "dev/ic/bt8xx.h"

  6094. 

  6095. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6096.     enable_sanitized sys/soundcard.h

  6097. else

  6098.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6099.     #include <sys/soundcard.h>

  6100.     audio_buf_info abc;

  6101. EOF

  6102. fi

  6103. 

  6104. enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6105.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6106. 

  6107. enabled libjack &&

  6108.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6109. 

  6110. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6111. 

  6112. if enabled libcdio; then

  6113.     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6114.     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6115.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6116.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6117.     die "ERROR: No usable libcdio/cdparanoia found"

  6118. fi

  6119. 

  6120. enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6121.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6122. 

  6123. if enabled libxcb; then

  6124.     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6125.     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6126.     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6127. fi

  6128. 

  6129. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6130. 

  6131. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6132. # the desktop api partition

  6133. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6134. #ifdef WINAPI_FAMILY

  6135. #include <winapifamily.h>

  6136. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6137. #error desktop, not uwp

  6138. #else

  6139. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6140. #endif

  6141. #else

  6142. #error no family set

  6143. #endif

  6144. EOF

  6145. 

  6146. enabled vaapi &&

  6147.     check_lib vaapi va/va.h vaInitialize -lva

  6148. 

  6149. enabled vaapi &&

  6150.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6151.     disable vaapi

  6152. 

  6153. enabled vaapi &&

  6154.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6155. 

  6156. enabled vaapi &&

  6157.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6158. 

  6159. enabled vaapi &&

  6160.     check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&

  6161.     enable vaapi_1

  6162. 

  6163. if enabled_all opencl vaapi ; then

  6164.     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&

  6165.         enable opencl_vaapi_beignet

  6166.     if enabled libmfx ; then

  6167.         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&

  6168.             enable opencl_vaapi_intel_media

  6169.     fi

  6170. fi

  6171. 

  6172. if enabled_all opencl dxva2 ; then

  6173.     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&

  6174.         enable opencl_dxva2

  6175. fi

  6176. 

  6177. if enabled_all opencl d3d11va ; then

  6178.     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&

  6179.         enable opencl_d3d11

  6180. fi

  6181. 

  6182. if enabled_all opencl libdrm ; then

  6183.     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&

  6184.         enable opencl_drm_arm

  6185. fi

  6186. 

  6187. enabled vdpau &&

  6188.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6189.     disable vdpau

  6190. 

  6191. enabled vdpau &&

  6192.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6193. 

  6194. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6195. 

  6196. if enabled x86; then

  6197.     case $target_os in

  6198.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6199.             ;;

  6200.         *)

  6201.             disable cuda cuvid nvdec nvenc

  6202.             ;;

  6203.     esac

  6204. else

  6205.     disable cuda cuvid nvdec nvenc

  6206. fi

  6207. 

  6208. enabled nvenc &&

  6209.     check_cc -I$source_path <<EOF || disable nvenc

  6210. #include "compat/nvenc/nvEncodeAPI.h"

  6211. NV_ENCODE_API_FUNCTION_LIST flist;

  6212. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6213. int main(void) { return 0; }

  6214. EOF

  6215. 

  6216. # Funny iconv installations are not unusual, so check it after all flags have been set

  6217. if enabled libc_iconv; then

  6218.     check_func_headers iconv.h iconv

  6219. elif enabled iconv; then

  6220.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6221. fi

  6222. 

  6223. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6224. 

  6225. # add some useful compiler flags if supported

  6226. check_cflags -Wdeclaration-after-statement

  6227. check_cflags -Wall

  6228. check_cflags -Wdisabled-optimization

  6229. check_cflags -Wpointer-arith

  6230. check_cflags -Wredundant-decls

  6231. check_cflags -Wwrite-strings

  6232. check_cflags -Wtype-limits

  6233. check_cflags -Wundef

  6234. check_cflags -Wmissing-prototypes

  6235. check_cflags -Wno-pointer-to-int-cast

  6236. check_cflags -Wstrict-prototypes

  6237. check_cflags -Wempty-body

  6238. 

  6239. if enabled extra_warnings; then

  6240.     check_cflags -Wcast-qual

  6241.     check_cflags -Wextra

  6242.     check_cflags -Wpedantic

  6243. fi

  6244. 

  6245. check_disable_warning(){

  6246.     warning_flag=-W${1#-Wno-}

  6247.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6248. }

  6249. 

  6250. test_cflags -Werror=unused-command-line-argument &&

  6251.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6252. test_cflags -Werror=unknown-warning-option &&

  6253.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6254. 

  6255. check_disable_warning -Wno-parentheses

  6256. check_disable_warning -Wno-switch

  6257. check_disable_warning -Wno-format-zero-length

  6258. check_disable_warning -Wno-pointer-sign

  6259. check_disable_warning -Wno-unused-const-variable

  6260. check_disable_warning -Wno-bool-operation

  6261. 

  6262. check_disable_warning_headers(){

  6263.     warning_flag=-W${1#-Wno-}

  6264.     test_cflags $warning_flag && add_cflags_headers $1

  6265. }

  6266. 

  6267. check_disable_warning_headers -Wno-deprecated-declarations

  6268. check_disable_warning_headers -Wno-unused-variable

  6269. 

  6270. check_cc <<EOF && enable blocks_extension

  6271. void (^block)(void);

  6272. EOF

  6273. 

  6274. # add some linker flags

  6275. check_ldflags -Wl,--warn-common

  6276. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6277. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6278. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6279. 

  6280. # add some strip flags

  6281. check_stripflags -x

  6282. 

  6283. enabled neon_clobber_test &&

  6284.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6285.                   -Wl,--wrap,avcodec_decode_audio4      \

  6286.                   -Wl,--wrap,avcodec_decode_video2      \

  6287.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6288.                   -Wl,--wrap,avcodec_encode_audio2      \

  6289.                   -Wl,--wrap,avcodec_encode_video2      \

  6290.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6291.                   -Wl,--wrap,avcodec_send_packet        \

  6292.                   -Wl,--wrap,avcodec_receive_packet     \

  6293.                   -Wl,--wrap,avcodec_send_frame         \

  6294.                   -Wl,--wrap,avcodec_receive_frame      \

  6295.                   -Wl,--wrap,swr_convert                \

  6296.                   -Wl,--wrap,avresample_convert ||

  6297.     disable neon_clobber_test

  6298. 

  6299. enabled xmm_clobber_test &&

  6300.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6301.                   -Wl,--wrap,avcodec_decode_audio4      \

  6302.                   -Wl,--wrap,avcodec_decode_video2      \

  6303.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6304.                   -Wl,--wrap,avcodec_encode_audio2      \

  6305.                   -Wl,--wrap,avcodec_encode_video2      \

  6306.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6307.                   -Wl,--wrap,avcodec_send_packet        \

  6308.                   -Wl,--wrap,avcodec_receive_packet     \

  6309.                   -Wl,--wrap,avcodec_send_frame         \

  6310.                   -Wl,--wrap,avcodec_receive_frame      \

  6311.                   -Wl,--wrap,swr_convert                \

  6312.                   -Wl,--wrap,avresample_convert         \

  6313.                   -Wl,--wrap,sws_scale ||

  6314.     disable xmm_clobber_test

  6315. 

  6316. check_ld "cc" <<EOF && enable proper_dce

  6317. extern const int array[512];

  6318. static inline int func(void) { return array[0]; }

  6319. int main(void) { return 0; }

  6320. EOF

  6321. 

  6322. if enabled proper_dce; then

  6323.     echo "X { local: *; };" > $TMPV

  6324.     if test_ldflags -Wl,${version_script},$TMPV; then

  6325.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6326.         quotes='""'

  6327.         check_cc <<EOF && enable symver_asm_label

  6328. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6329. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6330. EOF

  6331.         check_cc <<EOF && enable symver_gnu_asm

  6332. __asm__(".symver ff_foo,av_foo@VERSION");

  6333. void ff_foo(void) {}

  6334. EOF

  6335.     fi

  6336. fi

  6337. 

  6338. if [ -z "$optflags" ]; then

  6339.     if enabled small; then

  6340.         optflags=$cflags_size

  6341.     elif enabled optimizations; then

  6342.         optflags=$cflags_speed

  6343.     else

  6344.         optflags=$cflags_noopt

  6345.     fi

  6346. fi

  6347. 

  6348. if [ -z "$nvccflags" ]; then

  6349.     nvccflags=$nvccflags_default

  6350. fi

  6351. 

  6352. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6353.     nvccflags="$nvccflags -m64"

  6354. else

  6355.     nvccflags="$nvccflags -m32"

  6356. fi

  6357. 

  6358. check_optflags(){

  6359.     check_cflags "$@"

  6360.     enabled lto && check_ldflags "$@"

  6361. }

  6362. 

  6363. check_optflags $optflags

  6364. check_optflags -fno-math-errno

  6365. check_optflags -fno-signed-zeros

  6366. 

  6367. if enabled lto; then

  6368.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6369.     check_cflags  -flto

  6370.     check_ldflags -flto $cpuflags

  6371.     disable inline_asm_direct_symbol_refs

  6372. fi

  6373. 

  6374. enabled ftrapv && check_cflags -ftrapv

  6375. 

  6376. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6377. int x;

  6378. EOF

  6379. 

  6380. 

  6381. if enabled icc; then

  6382.     # Just warnings, no remarks

  6383.     check_cflags -w1

  6384.     # -wd: Disable following warnings

  6385.     # 144, 167, 556: -Wno-pointer-sign

  6386.     # 188: enumerated type mixed with another type

  6387.     # 1292: attribute "foo" ignored

  6388.     # 1419: external declaration in primary source file

  6389.     # 10006: ignoring unknown option -fno-signed-zeros

  6390.     # 10148: ignoring unknown option -Wno-parentheses

  6391.     # 10156: ignoring option '-W'; no argument required

  6392.     # 13200: No EMMS instruction before call to function

  6393.     # 13203: No EMMS instruction before return from function

  6394.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6395.     # 11030: Warning unknown option --as-needed

  6396.     # 10156: ignoring option '-export'; no argument required

  6397.     check_ldflags -wd10156,11030

  6398.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6399.     enable ebp_available

  6400.     # The test above does not test linking

  6401.     enabled lto && disable symver_asm_label

  6402.     if enabled x86_32; then

  6403.         icc_version=$($cc -dumpversion)

  6404.         test ${icc_version%%.*} -ge 11 &&

  6405.             check_cflags -falign-stack=maintain-16-byte ||

  6406.             disable aligned_stack

  6407.     fi

  6408. elif enabled gcc; then

  6409.     check_optflags -fno-tree-vectorize

  6410.     check_cflags -Werror=format-security

  6411.     check_cflags -Werror=implicit-function-declaration

  6412.     check_cflags -Werror=missing-prototypes

  6413.     check_cflags -Werror=return-type

  6414.     check_cflags -Werror=vla

  6415.     check_cflags -Wformat

  6416.     check_cflags -fdiagnostics-color=auto

  6417.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6418. elif enabled llvm_gcc; then

  6419.     check_cflags -mllvm -stack-alignment=16

  6420. elif enabled clang; then

  6421.     check_cflags -mllvm -stack-alignment=16

  6422.     check_cflags -mstack-alignment=16

  6423.     check_cflags -Qunused-arguments

  6424.     check_cflags -Werror=implicit-function-declaration

  6425.     check_cflags -Werror=missing-prototypes

  6426.     check_cflags -Werror=return-type

  6427. elif enabled cparser; then

  6428.     add_cflags -Wno-missing-variable-declarations

  6429.     add_cflags -Wno-empty-statement

  6430. elif enabled armcc; then

  6431.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6432.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6433.     # 2523: use of inline assembly is deprecated

  6434.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6435.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6436.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6437.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6438.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6439.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6440. elif enabled pathscale; then

  6441.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6442.     disable inline_asm

  6443. elif enabled_any msvc icl; then

  6444.     enabled x86_32 && disable aligned_stack

  6445.     enabled_all x86_32 debug && add_cflags -Oy-

  6446.     enabled debug && add_ldflags -debug

  6447.     enable pragma_deprecated

  6448.     if enabled icl; then

  6449.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6450.         # (correctly) on icl 13.x.

  6451.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6452.             add_cflags -Qansi-alias

  6453.         # Some inline asm is not compilable in debug

  6454.         if enabled debug; then

  6455.             disable ebp_available

  6456.             disable ebx_available

  6457.         fi

  6458.     fi

  6459.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6460.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6461.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6462.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6463.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6464.     # MSVC 2013 and newer can handle it fine.

  6465.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6466.     # happens in config.h.

  6467.     if [ $_restrict != restrict ]; then

  6468.         check_cc <<EOF || add_cflags -FIstdlib.h

  6469. __declspec($_restrict) void* foo(int);

  6470. EOF

  6471.     fi

  6472.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6473.     # Issue has been fixed in MSVC v19.00.24218.

  6474.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6475.         check_cflags -d2SSAOptimizer-

  6476.     # enable utf-8 source processing on VS2015 U2 and newer

  6477.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6478.         add_cflags -utf-8

  6479. fi

  6480. 

  6481. for pfx in "" host_; do

  6482.     varname=${pfx%_}cc_type

  6483.     eval "type=\$$varname"

  6484.     if [ "$type" = "msvc" ]; then

  6485.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6486. static inline int foo(int a) { return a; }

  6487. EOF

  6488.     fi

  6489. done

  6490. 

  6491. case $as_type in

  6492.     clang)

  6493.         add_asflags -Qunused-arguments

  6494.     ;;

  6495. esac

  6496. 

  6497. case $ld_type in

  6498.     clang)

  6499.         check_ldflags -Qunused-arguments

  6500.     ;;

  6501. esac

  6502. 

  6503. enable frame_thread_encoder

  6504. 

  6505. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6506. 

  6507. check_deps $CONFIG_LIST       \

  6508.            $CONFIG_EXTRA      \

  6509.            $HAVE_LIST         \

  6510.            $ALL_COMPONENTS    \

  6511. 

  6512. 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"

  6513. 

  6514. 

  6515. if test $target_os = "haiku"; then

  6516.     disable memalign

  6517.     disable posix_memalign

  6518. fi

  6519. 

  6520. flatten_extralibs(){

  6521.     unset nested_entries

  6522.     list_name=$1

  6523.     eval list=\$${1}

  6524.     for entry in $list; do

  6525.         entry_copy=$entry

  6526.         resolve entry_copy

  6527.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6528.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6529.         eval $entry="\$flat_entries"

  6530.     done

  6531.     append $list_name "$nested_entries"

  6532. 

  6533.     resolve nested_entries

  6534.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6535.         flatten_extralibs $list_name

  6536.     fi

  6537. }

  6538. 

  6539. flatten_extralibs_wrapper(){

  6540.     list_name=$1

  6541.     flatten_extralibs $list_name

  6542.     unique $list_name

  6543.     resolve $list_name

  6544.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6545.     eval printf \''%s'\' \""\$$list_name"\"

  6546. }

  6547. 

  6548. for linkunit in $LIBRARY_LIST; do

  6549.     unset current_extralibs

  6550.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6551.     for comp in ${components}; do

  6552.         enabled $comp || continue

  6553.         comp_extralibs="${comp}_extralibs"

  6554.         append current_extralibs $comp_extralibs

  6555.     done

  6556.     eval prepend ${linkunit}_extralibs $current_extralibs

  6557. done

  6558. 

  6559. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6560.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6561. done

  6562. 

  6563. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6564. 

  6565. for thread in $THREADS_LIST; do

  6566.     if enabled $thread; then

  6567.         test -n "$thread_type" &&

  6568.             die "ERROR: Only one thread type must be selected." ||

  6569.             thread_type="$thread"

  6570.     fi

  6571. done

  6572. 

  6573. if disabled stdatomic; then

  6574.     if enabled atomics_gcc; then

  6575.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6576.     elif enabled atomics_win32; then

  6577.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6578.     elif enabled atomics_suncc; then

  6579.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6580.     elif enabled pthreads; then

  6581.         add_compat atomics/pthread/stdatomic.o

  6582.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6583.     else

  6584.         enabled threads && die "Threading is enabled, but no atomics are available"

  6585.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6586.     fi

  6587. fi

  6588. 

  6589. # Check if requested libraries were found.

  6590. for lib in $AUTODETECT_LIBS; do

  6591.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6592. done

  6593. 

  6594. enabled zlib && add_cppflags -DZLIB_CONST

  6595. 

  6596. # conditional library dependencies, in linking order

  6597. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6598. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6599. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6600. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6601. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6602. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6603. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6604. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6605. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6606. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6607. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6608. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6609. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6610. enabled pan_filter          && prepend avfilter_deps "swresample"

  6611. enabled pp_filter           && prepend avfilter_deps "postproc"

  6612. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6613. enabled resample_filter && prepend avfilter_deps "avresample"

  6614. enabled sab_filter          && prepend avfilter_deps "swscale"

  6615. enabled scale_filter    && prepend avfilter_deps "swscale"

  6616. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6617. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6618. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6619. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6620. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6621. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6622. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6623. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6624. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6625. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6626. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6627. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6628. 

  6629. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6630. 

  6631. #FIXME

  6632. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6633. 

  6634. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6635. 

  6636. expand_deps(){

  6637.     lib_deps=${1}_deps

  6638.     eval "deps=\$$lib_deps"

  6639.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6640.     unique $lib_deps

  6641. }

  6642. 

  6643. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6644. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6645. 

  6646. map 'expand_deps $v' $LIBRARY_LIST

  6647. 

  6648. license="LGPL version 2.1 or later"

  6649. if enabled nonfree; then

  6650.     license="nonfree and unredistributable"

  6651. elif enabled gplv3; then

  6652.     license="GPL version 3 or later"

  6653. elif enabled lgplv3; then

  6654.     license="LGPL version 3 or later"

  6655. elif enabled gpl; then

  6656.     license="GPL version 2 or later"

  6657. fi

  6658. 

  6659. if test "$quiet" != "yes"; then

  6660. 

  6661. echo "install prefix            $prefix"

  6662. echo "source path               $source_path"

  6663. echo "C compiler                $cc"

  6664. echo "C library                 $libc_type"

  6665. if test "$host_cc" != "$cc"; then

  6666.     echo "host C compiler           $host_cc"

  6667.     echo "host C library            $host_libc_type"

  6668. fi

  6669. echo "ARCH                      $arch ($cpu)"

  6670. if test "$build_suffix" != ""; then

  6671.     echo "build suffix              $build_suffix"

  6672. fi

  6673. if test "$progs_suffix" != ""; then

  6674.     echo "progs suffix              $progs_suffix"

  6675. fi

  6676. if test "$extra_version" != ""; then

  6677.     echo "version string suffix     $extra_version"

  6678. fi

  6679. echo "big-endian                ${bigendian-no}"

  6680. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6681. if enabled x86; then

  6682.     echo "standalone assembly       ${x86asm-no}"

  6683.     echo "x86 assembler             ${x86asmexe}"

  6684.     echo "MMX enabled               ${mmx-no}"

  6685.     echo "MMXEXT enabled            ${mmxext-no}"

  6686.     echo "3DNow! enabled            ${amd3dnow-no}"

  6687.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6688.     echo "SSE enabled               ${sse-no}"

  6689.     echo "SSSE3 enabled             ${ssse3-no}"

  6690.     echo "AESNI enabled             ${aesni-no}"

  6691.     echo "AVX enabled               ${avx-no}"

  6692.     echo "AVX2 enabled              ${avx2-no}"

  6693.     echo "XOP enabled               ${xop-no}"

  6694.     echo "FMA3 enabled              ${fma3-no}"

  6695.     echo "FMA4 enabled              ${fma4-no}"

  6696.     echo "i686 features enabled     ${i686-no}"

  6697.     echo "CMOV is fast              ${fast_cmov-no}"

  6698.     echo "EBX available             ${ebx_available-no}"

  6699.     echo "EBP available             ${ebp_available-no}"

  6700. fi

  6701. if enabled aarch64; then

  6702.     echo "NEON enabled              ${neon-no}"

  6703.     echo "VFP enabled               ${vfp-no}"

  6704. fi

  6705. if enabled arm; then

  6706.     echo "ARMv5TE enabled           ${armv5te-no}"

  6707.     echo "ARMv6 enabled             ${armv6-no}"

  6708.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6709.     echo "VFP enabled               ${vfp-no}"

  6710.     echo "NEON enabled              ${neon-no}"

  6711.     echo "THUMB enabled             ${thumb-no}"

  6712. fi

  6713. if enabled mips; then

  6714.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6715.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6716.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6717.     echo "MIPS MSA enabled          ${msa-no}"

  6718.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6719. fi

  6720. if enabled ppc; then

  6721.     echo "AltiVec enabled           ${altivec-no}"

  6722.     echo "VSX enabled               ${vsx-no}"

  6723.     echo "POWER8 enabled            ${power8-no}"

  6724.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6725.     echo "dcbzl available           ${dcbzl-no}"

  6726. fi

  6727. echo "debug symbols             ${debug-no}"

  6728. echo "strip symbols             ${stripping-no}"

  6729. echo "optimize for size         ${small-no}"

  6730. echo "optimizations             ${optimizations-no}"

  6731. echo "static                    ${static-no}"

  6732. echo "shared                    ${shared-no}"

  6733. echo "postprocessing support    ${postproc-no}"

  6734. echo "network support           ${network-no}"

  6735. echo "threading support         ${thread_type-no}"

  6736. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6737. echo "texi2html enabled         ${texi2html-no}"

  6738. echo "perl enabled              ${perl-no}"

  6739. echo "pod2man enabled           ${pod2man-no}"

  6740. echo "makeinfo enabled          ${makeinfo-no}"

  6741. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6742. test -n "$random_seed" &&

  6743.     echo "random seed               ${random_seed}"

  6744. echo

  6745. 

  6746. echo "External libraries:"

  6747. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6748. echo

  6749. 

  6750. echo "External libraries providing hardware acceleration:"

  6751. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6752. echo

  6753. 

  6754. echo "Libraries:"

  6755. print_enabled '' $LIBRARY_LIST | print_in_columns

  6756. echo

  6757. 

  6758. echo "Programs:"

  6759. print_enabled '' $PROGRAM_LIST | print_in_columns

  6760. echo

  6761. 

  6762. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6763.     echo "Enabled ${type}s:"

  6764.     eval list=\$$(toupper $type)_LIST

  6765.     print_enabled '_*' $list | print_in_columns

  6766.     echo

  6767. done

  6768. 

  6769. if test -n "$ignore_tests"; then

  6770.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6771.     echo "Ignored FATE tests:"

  6772.     echo $ignore_tests | print_in_columns

  6773.     echo

  6774. fi

  6775. 

  6776. echo "License: $license"

  6777. 

  6778. fi # test "$quiet" != "yes"

  6779. 

  6780. if test -n "$WARNINGS"; then

  6781.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6782.     enabled fatal_warnings && exit 1

  6783. fi

  6784. 

  6785. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6786. 

  6787. esc(){

  6788.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6789. }

  6790. 

  6791. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6792. 

  6793. enabled stripping || strip="echo skipping strip"

  6794. enabled stripping || striptype=""

  6795. 

  6796. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6797. 

  6798. cat > ffbuild/config.mak <<EOF

  6799. # Automatically generated by configure - do not modify!

  6800. ifndef FFMPEG_CONFIG_MAK

  6801. FFMPEG_CONFIG_MAK=1

  6802. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6803. prefix=$prefix

  6804. LIBDIR=\$(DESTDIR)$libdir

  6805. SHLIBDIR=\$(DESTDIR)$shlibdir

  6806. INCDIR=\$(DESTDIR)$incdir

  6807. BINDIR=\$(DESTDIR)$bindir

  6808. DATADIR=\$(DESTDIR)$datadir

  6809. DOCDIR=\$(DESTDIR)$docdir

  6810. MANDIR=\$(DESTDIR)$mandir

  6811. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6812. INSTALL_NAME_DIR=$install_name_dir

  6813. SRC_PATH=$source_path

  6814. SRC_LINK=$source_link

  6815. ifndef MAIN_MAKEFILE

  6816. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6817. endif

  6818. CC_IDENT=$cc_ident

  6819. ARCH=$arch

  6820. INTRINSICS=$intrinsics

  6821. EXTERN_PREFIX=$extern_prefix

  6822. CC=$cc

  6823. CXX=$cxx

  6824. AS=$as

  6825. OBJCC=$objcc

  6826. LD=$ld

  6827. DEPCC=$dep_cc

  6828. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6829. DEPAS=$as

  6830. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6831. X86ASM=$x86asmexe

  6832. DEPX86ASM=$x86asmexe

  6833. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6834. AR=$ar

  6835. ARFLAGS=$arflags

  6836. AR_O=$ar_o

  6837. AR_CMD=$ar

  6838. NM_CMD=$nm

  6839. RANLIB=$ranlib

  6840. STRIP=$strip

  6841. STRIPTYPE=$striptype

  6842. NVCC=$nvcc

  6843. CP=cp -p

  6844. LN_S=$ln_s

  6845. CPPFLAGS=$CPPFLAGS

  6846. CFLAGS=$CFLAGS

  6847. CXXFLAGS=$CXXFLAGS

  6848. OBJCFLAGS=$OBJCFLAGS

  6849. ASFLAGS=$ASFLAGS

  6850. NVCCFLAGS=$nvccflags

  6851. AS_C=$AS_C

  6852. AS_O=$AS_O

  6853. OBJCC_C=$OBJCC_C

  6854. OBJCC_E=$OBJCC_E

  6855. OBJCC_O=$OBJCC_O

  6856. CC_C=$CC_C

  6857. CC_E=$CC_E

  6858. CC_O=$CC_O

  6859. CXX_C=$CXX_C

  6860. CXX_O=$CXX_O

  6861. NVCC_C=$NVCC_C

  6862. NVCC_O=$NVCC_O

  6863. LD_O=$LD_O

  6864. X86ASM_O=$X86ASM_O

  6865. LD_LIB=$LD_LIB

  6866. LD_PATH=$LD_PATH

  6867. WINDRES=$windres

  6868. DEPWINDRES=$dep_cc

  6869. DOXYGEN=$doxygen

  6870. LDFLAGS=$LDFLAGS

  6871. LDEXEFLAGS=$LDEXEFLAGS

  6872. LDSOFLAGS=$LDSOFLAGS

  6873. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6874. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6875. X86ASMFLAGS=$X86ASMFLAGS

  6876. BUILDSUF=$build_suffix

  6877. PROGSSUF=$progs_suffix

  6878. FULLNAME=$FULLNAME

  6879. LIBPREF=$LIBPREF

  6880. LIBSUF=$LIBSUF

  6881. LIBNAME=$LIBNAME

  6882. SLIBPREF=$SLIBPREF

  6883. SLIBSUF=$SLIBSUF

  6884. EXESUF=$EXESUF

  6885. EXTRA_VERSION=$extra_version

  6886. CCDEP=$CCDEP

  6887. CXXDEP=$CXXDEP

  6888. CCDEP_FLAGS=$CCDEP_FLAGS

  6889. ASDEP=$ASDEP

  6890. ASDEP_FLAGS=$ASDEP_FLAGS

  6891. X86ASMDEP=$X86ASMDEP

  6892. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6893. CC_DEPFLAGS=$CC_DEPFLAGS

  6894. AS_DEPFLAGS=$AS_DEPFLAGS

  6895. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6896. HOSTCC=$host_cc

  6897. HOSTLD=$host_ld

  6898. HOSTCFLAGS=$host_cflags

  6899. HOSTCPPFLAGS=$host_cppflags

  6900. HOSTEXESUF=$HOSTEXESUF

  6901. HOSTLDFLAGS=$host_ldflags

  6902. HOSTEXTRALIBS=$host_extralibs

  6903. DEPHOSTCC=$host_cc

  6904. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6905. HOSTCCDEP=$HOSTCCDEP

  6906. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6907. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6908. HOSTCC_C=$HOSTCC_C

  6909. HOSTCC_O=$HOSTCC_O

  6910. HOSTLD_O=$HOSTLD_O

  6911. TARGET_EXEC=$target_exec $target_exec_args

  6912. TARGET_PATH=$target_path

  6913. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6914. CFLAGS-ffplay=${sdl2_cflags}

  6915. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6916. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6917. EXTRALIBS=$extralibs

  6918. COMPAT_OBJS=$compat_objs

  6919. INSTALL=$install

  6920. SLIBNAME=${SLIBNAME}

  6921. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6922. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6923. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6924. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6925. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6926. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6927. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6928. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6929. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6930. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6931. NOREDZONE_FLAGS=$noredzone_flags

  6932. LIBFUZZER_PATH=$libfuzzer_path

  6933. IGNORE_TESTS=$ignore_tests

  6934. EOF

  6935. 

  6936. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6937. 

  6938. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6939.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  6940. done

  6941. 

  6942. cat > $TMPH <<EOF

  6943. /* Automatically generated by configure - do not modify! */

  6944. #ifndef FFMPEG_CONFIG_H

  6945. #define FFMPEG_CONFIG_H

  6946. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6947. #define FFMPEG_LICENSE "$(c_escape $license)"

  6948. #define CONFIG_THIS_YEAR 2017

  6949. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6950. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6951. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6952. #define av_restrict $_restrict

  6953. #define EXTERN_PREFIX "${extern_prefix}"

  6954. #define EXTERN_ASM ${extern_prefix}

  6955. #define BUILDSUF "$build_suffix"

  6956. #define SLIBSUF "$SLIBSUF"

  6957. #define HAVE_MMX2 HAVE_MMXEXT

  6958. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6959. EOF

  6960. 

  6961. test -n "$assert_level" &&

  6962.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6963. 

  6964. test -n "$malloc_prefix" &&

  6965.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6966. 

  6967. if enabled x86asm; then

  6968.     append config_files $TMPASM

  6969.     cat > $TMPASM <<EOF

  6970. ; Automatically generated by configure - do not modify!

  6971. EOF

  6972. fi

  6973. 

  6974. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6975. 

  6976. 

  6977. mkdir -p doc

  6978. mkdir -p tests

  6979. mkdir -p tests/api

  6980. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6981. 

  6982. print_config ARCH_   "$config_files" $ARCH_LIST

  6983. print_config HAVE_   "$config_files" $HAVE_LIST

  6984. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6985.                                      $CONFIG_EXTRA      \

  6986.                                      $ALL_COMPONENTS    \

  6987. 

  6988. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6989. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6990. 

  6991. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6992. cp_if_changed $TMPH config.h

  6993. touch ffbuild/.config

  6994. 

  6995. enabled x86asm && cp_if_changed $TMPASM config.asm

  6996. 

  6997. cat > $TMPH <<EOF

  6998. /* Generated by ffmpeg configure */

  6999. #ifndef AVUTIL_AVCONFIG_H

  7000. #define AVUTIL_AVCONFIG_H

  7001. EOF

  7002. 

  7003. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7004. 

  7005. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7006. 

  7007. cp_if_changed $TMPH libavutil/avconfig.h

  7008. 

  7009. # generate the lists of enabled components

  7010. print_enabled_components(){

  7011.     file=$1

  7012.     struct_name=$2

  7013.     name=$3

  7014.     shift 3

  7015.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7016.     for c in $*; do

  7017.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  7018.     done

  7019.     echo "    NULL };" >> $TMPH

  7020.     cp_if_changed $TMPH $file

  7021. }

  7022. 

  7023. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7024. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7025. 

  7026. # Settings for pkg-config files

  7027. 

  7028. cat > $TMPH <<EOF

  7029. # Automatically generated by configure - do not modify!

  7030. shared=$shared

  7031. build_suffix=$build_suffix

  7032. prefix=$prefix

  7033. libdir=$libdir

  7034. incdir=$incdir

  7035. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7036. source_path=${source_path}

  7037. LIBPREF=${LIBPREF}

  7038. LIBSUF=${LIBSUF}

  7039. extralibs_avutil="$avutil_extralibs"

  7040. extralibs_avcodec="$avcodec_extralibs"

  7041. extralibs_avformat="$avformat_extralibs"

  7042. extralibs_avdevice="$avdevice_extralibs"

  7043. extralibs_avfilter="$avfilter_extralibs"

  7044. extralibs_avresample="$avresample_extralibs"

  7045. extralibs_postproc="$postproc_extralibs"

  7046. extralibs_swscale="$swscale_extralibs"

  7047. extralibs_swresample="$swresample_extralibs"

  7048. EOF

  7049. 

  7050. for lib in $LIBRARY_LIST; do

  7051.     lib_deps="$(eval echo \$${lib}_deps)"

  7052.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7053. done

  7054. 

  7055. cp_if_changed $TMPH ffbuild/config.sh