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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

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

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

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

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

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

  135.   --enable-avresample      enable libavresample build (deprecated) [no]

  136.   --disable-pthreads       disable pthreads [autodetect]

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

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

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

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

  142.   --disable-error-resilience disable error resilience code

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

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

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

  150. 

  151. Individual component options:

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

  153.   --disable-encoder=NAME   disable encoder NAME

  154.   --enable-encoder=NAME    enable encoder NAME

  155.   --disable-encoders       disable all encoders

  156.   --disable-decoder=NAME   disable decoder NAME

  157.   --enable-decoder=NAME    enable decoder NAME

  158.   --disable-decoders       disable all decoders

  159.   --disable-hwaccel=NAME   disable hwaccel NAME

  160.   --enable-hwaccel=NAME    enable hwaccel NAME

  161.   --disable-hwaccels       disable all hwaccels

  162.   --disable-muxer=NAME     disable muxer NAME

  163.   --enable-muxer=NAME      enable muxer NAME

  164.   --disable-muxers         disable all muxers

  165.   --disable-demuxer=NAME   disable demuxer NAME

  166.   --enable-demuxer=NAME    enable demuxer NAME

  167.   --disable-demuxers       disable all demuxers

  168.   --enable-parser=NAME     enable parser NAME

  169.   --disable-parser=NAME    disable parser NAME

  170.   --disable-parsers        disable all parsers

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

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

  173.   --disable-bsfs           disable all bitstream filters

  174.   --enable-protocol=NAME   enable protocol NAME

  175.   --disable-protocol=NAME  disable protocol NAME

  176.   --disable-protocols      disable all protocols

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

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

  179.   --disable-indevs         disable input devices

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

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

  182.   --disable-outdevs        disable output devices

  183.   --disable-devices        disable all devices

  184.   --enable-filter=NAME     enable filter NAME

  185.   --disable-filter=NAME    disable filter NAME

  186.   --disable-filters        disable all filters

  187. 

  188. External library support:

  189. 

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

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

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

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

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

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

  196. 

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

  198.   libraries must be explicitly enabled.

  199. 

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

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

  202. 

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

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

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

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

  207.   --disable-bzlib          disable bzlib [autodetect]

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

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

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

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

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

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

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

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

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

  217.   --disable-iconv          disable iconv [autodetect]

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

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

  220.   --enable-libass          enable libass subtitles rendering,

  221.                            needed for subtitles and ass filter [no]

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

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

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

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

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

  227.   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]

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

  229.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  270.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  288.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

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

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

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

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

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

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

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

  301.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  304.   --disable-xlib           disable xlib [autodetect]

  305.   --disable-zlib           disable zlib [autodetect]

  306. 

  307.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  328. 

  329. Toolchain options:

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

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

  332.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  383. 

  384. Advanced options (experts only):

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

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

  387.   --disable-symver         disable symbol versioning

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

  389.   --disable-safe-bitstream-reader

  390.                            disable buffer boundary checking in bitreaders

  391.                            (faster, but may crash)

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

  393. 

  394. Optimization options (experts only):

  395.   --disable-asm            disable all assembly optimizations

  396.   --disable-altivec        disable AltiVec optimizations

  397.   --disable-vsx            disable VSX optimizations

  398.   --disable-power8         disable POWER8 optimizations

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

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

  401.   --disable-mmx            disable MMX optimizations

  402.   --disable-mmxext         disable MMXEXT optimizations

  403.   --disable-sse            disable SSE optimizations

  404.   --disable-sse2           disable SSE2 optimizations

  405.   --disable-sse3           disable SSE3 optimizations

  406.   --disable-ssse3          disable SSSE3 optimizations

  407.   --disable-sse4           disable SSE4 optimizations

  408.   --disable-sse42          disable SSE4.2 optimizations

  409.   --disable-avx            disable AVX optimizations

  410.   --disable-xop            disable XOP optimizations

  411.   --disable-fma3           disable FMA3 optimizations

  412.   --disable-fma4           disable FMA4 optimizations

  413.   --disable-avx2           disable AVX2 optimizations

  414.   --disable-avx512         disable AVX-512 optimizations

  415.   --disable-aesni          disable AESNI optimizations

  416.   --disable-armv5te        disable armv5te optimizations

  417.   --disable-armv6          disable armv6 optimizations

  418.   --disable-armv6t2        disable armv6t2 optimizations

  419.   --disable-vfp            disable VFP optimizations

  420.   --disable-neon           disable NEON optimizations

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

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

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

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

  425.   --disable-msa            disable MSA optimizations

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

  427.   --disable-mmi            disable Loongson SIMD optimizations

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

  429. 

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

  431.   --disable-debug          disable debugging symbols

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

  433.   --disable-optimizations  disable compiler optimizations

  434.   --enable-extra-warnings  enable more compiler warnings

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

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

  437.                            2 causes a slowdown at runtime.

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

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

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

  441.                            Cannot be combined with --target-exec

  442.   --enable-ftrapv          Trap arithmetic overflows

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

  444.                            \$FATE_SAMPLES at make invocation time.

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

  446.                            used only for debugging purposes)

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

  448.                            should be used only for debugging purposes)

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

  450.   --disable-random

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

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

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

  454.                            (group) and PROB the probability associated with

  455.                            NAME (default 0.5).

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

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

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

  459.   --enable-osfuzz          Enable building fuzzer tool

  460.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  464. 

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

  466. EOF

  467.   exit 0

  468. }

  469. 

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

  471.     ncolors=$(tput colors)

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

  473.         bold_color=$(tput bold)

  474.         warn_color=$(tput setaf 3)

  475.         error_color=$(tput setaf 1)

  476.         reset_color=$(tput sgr0)

  477.     fi

  478.     # 72 used instead of 80 since that's the default of pr

  479.     ncols=$(tput cols)

  480. fi

  481. : ${ncols:=72}

  482. 

  483. log(){

  484.     echo "$@" >> $logfile

  485. }

  486. 

  487. log_file(){

  488.     log BEGIN $1

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

  490.     log END $1

  491. }

  492. 

  493. warn(){

  494.     log "WARNING: $*"

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

  496. }

  497. 

  498. die(){

  499.     log "$@"

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

  501.     cat <<EOF

  502. 

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

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

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

  506. EOF

  507.     if disabled logging; then

  508.         cat <<EOF

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

  510. include the log this produces with your report.

  511. EOF

  512.     else

  513.         cat <<EOF

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

  515. solve the problem.

  516. EOF

  517.     fi

  518.     exit 1

  519. }

  520. 

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

  522. toupper(){

  523.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  524. }

  525. 

  526. tolower(){

  527.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  528. }

  529. 

  530. c_escape(){

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

  532. }

  533. 

  534. sh_quote(){

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

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

  537.     echo "$v"

  538. }

  539. 

  540. cleanws(){

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

  542. }

  543. 

  544. filter(){

  545.     pat=$1

  546.     shift

  547.     for v; do

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

  549.     done

  550. }

  551. 

  552. filter_out(){

  553.     pat=$1

  554.     shift

  555.     for v; do

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

  557.     done

  558. }

  559. 

  560. map(){

  561.     m=$1

  562.     shift

  563.     for v; do eval $m; done

  564. }

  565. 

  566. add_suffix(){

  567.     suffix=$1

  568.     shift

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

  570. }

  571. 

  572. remove_suffix(){

  573.     suffix=$1

  574.     shift

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

  576. }

  577. 

  578. set_all(){

  579.     value=$1

  580.     shift

  581.     for var in $*; do

  582.         eval $var=$value

  583.     done

  584. }

  585. 

  586. set_weak(){

  587.     value=$1

  588.     shift

  589.     for var; do

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

  591.     done

  592. }

  593. 

  594. sanitize_var_name(){

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

  596. }

  597. 

  598. set_sanitized(){

  599.     var=$1

  600.     shift

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

  602. }

  603. 

  604. get_sanitized(){

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

  606. }

  607. 

  608. pushvar(){

  609.     for pvar in $*; do

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

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

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

  613.     done

  614. }

  615. 

  616. popvar(){

  617.     for pvar in $*; do

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

  619.         test $level = 0 && continue

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

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

  622.         eval ${pvar}_level=$level

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

  624.     done

  625. }

  626. 

  627. request(){

  628.     for var in $*; do

  629.         eval ${var}_requested=yes

  630.         eval $var=

  631.     done

  632. }

  633. 

  634. enable(){

  635.     set_all yes $*

  636. }

  637. 

  638. disable(){

  639.     set_all no $*

  640. }

  641. 

  642. enable_weak(){

  643.     set_weak yes $*

  644. }

  645. 

  646. disable_weak(){

  647.     set_weak no $*

  648. }

  649. 

  650. enable_sanitized(){

  651.     for var; do

  652.         enable $(sanitize_var_name $var)

  653.     done

  654. }

  655. 

  656. disable_sanitized(){

  657.     for var; do

  658.         disable $(sanitize_var_name $var)

  659.     done

  660. }

  661. 

  662. do_enable_deep(){

  663.     for var; do

  664.         enabled $var && continue

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

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

  667.         pushvar var sgs

  668.         enable_deep $sel

  669.         popvar sgs

  670.         enable_deep_weak $sgs

  671.         popvar var

  672.     done

  673. }

  674. 

  675. enable_deep(){

  676.     do_enable_deep $*

  677.     enable $*

  678. }

  679. 

  680. enable_deep_weak(){

  681.     for var; do

  682.         disabled $var && continue

  683.         pushvar var

  684.         do_enable_deep $var

  685.         popvar var

  686.         enable_weak $var

  687.     done

  688. }

  689. 

  690. requested(){

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

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

  693. }

  694. 

  695. enabled(){

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

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

  698. }

  699. 

  700. disabled(){

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

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

  703. }

  704. 

  705. enabled_all(){

  706.     for opt; do

  707.         enabled $opt || return 1

  708.     done

  709. }

  710. 

  711. disabled_all(){

  712.     for opt; do

  713.         disabled $opt || return 1

  714.     done

  715. }

  716. 

  717. enabled_any(){

  718.     for opt; do

  719.         enabled $opt && return 0

  720.     done

  721. }

  722. 

  723. disabled_any(){

  724.     for opt; do

  725.         disabled $opt && return 0

  726.     done

  727.     return 1

  728. }

  729. 

  730. set_default(){

  731.     for opt; do

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

  733.     done

  734. }

  735. 

  736. is_in(){

  737.     value=$1

  738.     shift

  739.     for var in $*; do

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

  741.     done

  742.     return 1

  743. }

  744. 

  745. check_deps(){

  746.     for cfg; do

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

  748.         disabled ${cfg}_checking && continue

  749.         enable ${cfg}_checking

  750. 

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

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

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

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

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

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

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

  758. 

  759.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  761.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  762. 

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

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

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

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

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

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

  769. 

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

  771. 

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

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

  774.             is_in $dep $LIBRARY_LIST && continue

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

  776.         done

  777. 

  778.         disable ${cfg}_checking

  779.     done

  780. }

  781. 

  782. print_config(){

  783.     pfx=$1

  784.     files=$2

  785.     shift 2

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

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

  788.         {

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

  790.             v = \$2;

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

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

  793.             for (f in files) {

  794.                 file = files[f];

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

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

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

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

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

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

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

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

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

  804.                     yesno = \$2;

  805.                     c2 = tolower(c);

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

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

  808.                 }

  809.             }

  810.         }"

  811. }

  812. 

  813. print_enabled(){

  814.     suf=$1

  815.     shift

  816.     for v; do

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

  818.     done

  819. }

  820. 

  821. append(){

  822.     var=$1

  823.     shift

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

  825. }

  826. 

  827. prepend(){

  828.     var=$1

  829.     shift

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

  831. }

  832. 

  833. unique(){

  834.     var=$1

  835.     uniq_list=""

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

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

  838.     done

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

  840. }

  841. 

  842. resolve(){

  843.     var=$1

  844.     tmpvar=

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

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

  847.     done

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

  849. }

  850. 

  851. add_cppflags(){

  852.     append CPPFLAGS "$@"

  853. }

  854. 

  855. add_cflags(){

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

  857. }

  858. 

  859. add_cflags_headers(){

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

  861. }

  862. 

  863. add_cxxflags(){

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

  865. }

  866. 

  867. add_asflags(){

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

  869. }

  870. 

  871. add_objcflags(){

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

  873. }

  874. 

  875. add_ldflags(){

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

  877. }

  878. 

  879. add_ldexeflags(){

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

  881. }

  882. 

  883. add_ldsoflags(){

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

  885. }

  886. 

  887. add_stripflags(){

  888.     append ASMSTRIPFLAGS "$@"

  889. }

  890. 

  891. add_extralibs(){

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

  893. }

  894. 

  895. add_host_cppflags(){

  896.     append host_cppflags "$@"

  897. }

  898. 

  899. add_host_cflags(){

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

  901. }

  902. 

  903. add_host_ldflags(){

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

  905. }

  906. 

  907. add_compat(){

  908.     append compat_objs $1

  909.     shift

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

  911. }

  912. 

  913. test_cmd(){

  914.     log "$@"

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

  916. }

  917. 

  918. test_stat(){

  919.     log test_stat "$@"

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

  921. }

  922. 

  923. cc_o(){

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

  925. }

  926. 

  927. cc_e(){

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

  929. }

  930. 

  931. test_cc(){

  932.     log test_cc "$@"

  933.     cat > $TMPC

  934.     log_file $TMPC

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

  936. }

  937. 

  938. test_cxx(){

  939.     log test_cxx "$@"

  940.     cat > $TMPCPP

  941.     log_file $TMPCPP

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

  943. }

  944. 

  945. test_objcc(){

  946.     log test_objcc "$@"

  947.     cat > $TMPM

  948.     log_file $TMPM

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

  950. }

  951. 

  952. test_cpp(){

  953.     log test_cpp "$@"

  954.     cat > $TMPC

  955.     log_file $TMPC

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

  957. }

  958. 

  959. as_o(){

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

  961. }

  962. 

  963. test_as(){

  964.     log test_as "$@"

  965.     cat > $TMPS

  966.     log_file $TMPS

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

  968. }

  969. 

  970. check_cmd(){

  971.     log check_cmd "$@"

  972.     cmd=$1

  973.     disabled $cmd && return

  974.     disable $cmd

  975.     test_cmd $@ && enable $cmd

  976. }

  977. 

  978. check_inline_asm(){

  979.     log check_inline_asm "$@"

  980.     name="$1"

  981.     code="$2"

  982.     shift 2

  983.     disable $name

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

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

  986. EOF

  987. }

  988. 

  989. check_inline_asm_flags(){

  990.     log check_inline_asm_flags "$@"

  991.     name="$1"

  992.     code="$2"

  993.     flags=''

  994.     shift 2

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

  996.       append flags $1

  997.       shift

  998.     done;

  999.     disable $name

  1000.     cat > $TMPC <<EOF

  1001. void foo(void){ __asm__ volatile($code); }

  1002. EOF

  1003.     log_file $TMPC

  1004.     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&

  1005.     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags

  1006. }

  1007. 

  1008. check_insn(){

  1009.     log check_insn "$@"

  1010.     check_inline_asm ${1}_inline "$2"

  1011.     echo "$2" | test_as && enable ${1}_external || disable ${1}_external

  1012. }

  1013. 

  1014. test_x86asm(){

  1015.     log test_x86asm "$@"

  1016.     echo "$1" > $TMPS

  1017.     log_file $TMPS

  1018.     shift 1

  1019.     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS

  1020. }

  1021. 

  1022. ld_o(){

  1023.     eval printf '%s\\n' $LD_O

  1024. }

  1025. 

  1026. test_ld(){

  1027.     log test_ld "$@"

  1028.     type=$1

  1029.     shift 1

  1030.     flags=$(filter_out '-l*|*.so' $@)

  1031.     libs=$(filter '-l*|*.so' $@)

  1032.     test_$type $($cflags_filter $flags) || return

  1033.     flags=$($ldflags_filter $flags)

  1034.     libs=$($ldflags_filter $libs)

  1035.     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1036. }

  1037. 

  1038. print_include(){

  1039.     hdr=$1

  1040.     test "${hdr%.h}" = "${hdr}" &&

  1041.         echo "#include $hdr"    ||

  1042.         echo "#include <$hdr>"

  1043. }

  1044. 

  1045. test_code(){

  1046.     log test_code "$@"

  1047.     check=$1

  1048.     headers=$2

  1049.     code=$3

  1050.     shift 3

  1051.     {

  1052.         for hdr in $headers; do

  1053.             print_include $hdr

  1054.         done

  1055.         echo "int main(void) { $code; return 0; }"

  1056.     } | test_$check "$@"

  1057. }

  1058. 

  1059. check_cppflags(){

  1060.     log check_cppflags "$@"

  1061.     test_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1062. #include <stdlib.h>

  1063. EOF

  1064. }

  1065. 

  1066. test_cflags(){

  1067.     log test_cflags "$@"

  1068.     set -- $($cflags_filter "$@")

  1069.     test_cc "$@" <<EOF

  1070. int x;

  1071. EOF

  1072. }

  1073. 

  1074. check_cflags(){

  1075.     log check_cflags "$@"

  1076.     test_cflags "$@" && add_cflags "$@"

  1077. }

  1078. 

  1079. check_cxxflags(){

  1080.     log check_cxxflags "$@"

  1081.     set -- $($cflags_filter "$@")

  1082.     test_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1083. int x;

  1084. EOF

  1085. }

  1086. 

  1087. test_objcflags(){

  1088.     log test_objcflags "$@"

  1089.     set -- $($objcflags_filter "$@")

  1090.     test_objcc "$@" <<EOF

  1091. int x;

  1092. EOF

  1093. }

  1094. 

  1095. check_objcflags(){

  1096.     log check_objcflags "$@"

  1097.     test_objcflags "$@" && add_objcflags "$@"

  1098. }

  1099. 

  1100. test_ldflags(){

  1101.     log test_ldflags "$@"

  1102.     set -- $($ldflags_filter "$@")

  1103.     test_ld "cc" "$@" <<EOF

  1104. int main(void){ return 0; }

  1105. EOF

  1106. }

  1107. 

  1108. check_ldflags(){

  1109.     log check_ldflags "$@"

  1110.     test_ldflags "$@" && add_ldflags "$@"

  1111. }

  1112. 

  1113. test_stripflags(){

  1114.     log test_stripflags "$@"

  1115.     # call test_cc to get a fresh TMPO

  1116.     test_cc <<EOF

  1117. int main(void) { return 0; }

  1118. EOF

  1119.     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1120. }

  1121. 

  1122. check_stripflags(){

  1123.     log check_stripflags "$@"

  1124.     test_stripflags "$@" && add_stripflags "$@"

  1125. }

  1126. 

  1127. check_header(){

  1128.     log check_header "$@"

  1129.     headers=$1

  1130.     shift

  1131.     disable_sanitized $headers

  1132.     {

  1133.         for hdr in $headers; do

  1134.             print_include $hdr

  1135.         done

  1136.         echo "int x;"

  1137.     } | test_cpp "$@" && enable_sanitized $headers

  1138. }

  1139. 

  1140. check_header_objcc(){

  1141.     log check_header_objcc "$@"

  1142.     rm -f -- "$TMPO"

  1143.     header=$1

  1144.     shift

  1145.     disable_sanitized $header

  1146.     {

  1147.        echo "#include <$header>"

  1148.        echo "int main(void) { return 0; }"

  1149.     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header

  1150. }

  1151. 

  1152. check_apple_framework(){

  1153.     log check_apple_framework "$@"

  1154.     framework="$1"

  1155.     name="$(tolower $framework)"

  1156.     header="${framework}/${framework}.h"

  1157.     disable $name

  1158.     check_header_objcc $header &&

  1159.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1160. }

  1161. 

  1162. check_func(){

  1163.     log check_func "$@"

  1164.     func=$1

  1165.     shift

  1166.     disable $func

  1167.     test_ld "cc" "$@" <<EOF && enable $func

  1168. extern int $func();

  1169. int main(void){ $func(); }

  1170. EOF

  1171. }

  1172. 

  1173. check_complexfunc(){

  1174.     log check_complexfunc "$@"

  1175.     func=$1

  1176.     narg=$2

  1177.     shift 2

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

  1179.     disable $func

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

  1181. #include <complex.h>

  1182. #include <math.h>

  1183. float foo(complex float f, complex float g) { return $func($args); }

  1184. int main(void){ return (int) foo; }

  1185. EOF

  1186. }

  1187. 

  1188. check_mathfunc(){

  1189.     log check_mathfunc "$@"

  1190.     func=$1

  1191.     narg=$2

  1192.     shift 2

  1193.     test $narg = 2 && args="f, g" || args="f"

  1194.     disable $func

  1195.     test_ld "cc" "$@" <<EOF && enable $func

  1196. #include <math.h>

  1197. float foo(float f, float g) { return $func($args); }

  1198. int main(void){ return (int) foo; }

  1199. EOF

  1200. }

  1201. 

  1202. check_func_headers(){

  1203.     log check_func_headers "$@"

  1204.     headers=$1

  1205.     funcs=$2

  1206.     shift 2

  1207.     {

  1208.         for hdr in $headers; do

  1209.             print_include $hdr

  1210.         done

  1211.         echo "#include <stdint.h>"

  1212.         for func in $funcs; do

  1213.             echo "long check_$func(void) { return (long) $func; }"

  1214.         done

  1215.         echo "int main(void) { int ret = 0;"

  1216.         # LTO could optimize out the test functions without this

  1217.         for func in $funcs; do

  1218.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1219.         done

  1220.         echo "return ret; }"

  1221.     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1222. }

  1223. 

  1224. check_class_headers_cpp(){

  1225.     log check_class_headers_cpp "$@"

  1226.     headers=$1

  1227.     classes=$2

  1228.     shift 2

  1229.     {

  1230.         for hdr in $headers; do

  1231.             echo "#include <$hdr>"

  1232.         done

  1233.         echo "int main(void) { "

  1234.         i=1

  1235.         for class in $classes; do

  1236.             echo "$class obj$i;"

  1237.             i=$(expr $i + 1)

  1238.         done

  1239.         echo "return 0; }"

  1240.     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1241. }

  1242. 

  1243. test_cpp_condition(){

  1244.     log test_cpp_condition "$@"

  1245.     header=$1

  1246.     condition=$2

  1247.     shift 2

  1248.     test_cpp "$@" <<EOF

  1249. #include <$header>

  1250. #if !($condition)

  1251. #error "unsatisfied condition: $condition"

  1252. #endif

  1253. EOF

  1254. }

  1255. 

  1256. check_cpp_condition(){

  1257.     log check_cpp_condition "$@"

  1258.     name=$1

  1259.     shift 1

  1260.     disable $name

  1261.     test_cpp_condition "$@" && enable $name

  1262. }

  1263. 

  1264. test_cflags_cc(){

  1265.     log test_cflags_cc "$@"

  1266.     flags=$1

  1267.     header=$2

  1268.     condition=$3

  1269.     shift 3

  1270.     set -- $($cflags_filter "$flags")

  1271.     test_cc "$@" <<EOF

  1272. #include <$header>

  1273. #if !($condition)

  1274. #error "unsatisfied condition: $condition"

  1275. #endif

  1276. EOF

  1277. }

  1278. 

  1279. check_lib(){

  1280.     log check_lib "$@"

  1281.     name="$1"

  1282.     headers="$2"

  1283.     funcs="$3"

  1284.     shift 3

  1285.     disable $name

  1286.     check_func_headers "$headers" "$funcs" "$@" &&

  1287.         enable $name && eval ${name}_extralibs="\$@"

  1288. }

  1289. 

  1290. check_lib_cpp(){

  1291.     log check_lib_cpp "$@"

  1292.     name="$1"

  1293.     headers="$2"

  1294.     classes="$3"

  1295.     shift 3

  1296.     disable $name

  1297.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1298.         enable $name && eval ${name}_extralibs="\$@"

  1299. }

  1300. 

  1301. test_pkg_config(){

  1302.     log test_pkg_config "$@"

  1303.     name="$1"

  1304.     pkg_version="$2"

  1305.     pkg="${2%% *}"

  1306.     headers="$3"

  1307.     funcs="$4"

  1308.     shift 4

  1309.     disable $name

  1310.     test_cmd $pkg_config --exists --print-errors $pkg_version || return

  1311.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1312.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1313.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1314.         enable $name &&

  1315.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1316.         set_sanitized "${name}_extralibs" $pkg_libs

  1317. }

  1318. 

  1319. check_pkg_config(){

  1320.     log check_pkg_config "$@"

  1321.     name="$1"

  1322.     test_pkg_config "$@" &&

  1323.         eval add_cflags \$${name}_cflags

  1324. }

  1325. 

  1326. test_exec(){

  1327.     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1328. }

  1329. 

  1330. check_exec_crash(){

  1331.     log check_exec_crash "$@"

  1332.     code=$(cat)

  1333. 

  1334.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1335.     # are safe but may not be available everywhere.  Thus we use

  1336.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1337.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1338.     # is not defined by standard C so it is used conditionally.

  1339. 

  1340.     (test_exec "$@") >> $logfile 2>&1 <<EOF

  1341. #include <signal.h>

  1342. static void sighandler(int sig){

  1343.     raise(SIGTERM);

  1344. }

  1345. int foo(void){

  1346.     $code

  1347. }

  1348. int (*func_ptr)(void) = foo;

  1349. int main(void){

  1350.     signal(SIGILL, sighandler);

  1351.     signal(SIGFPE, sighandler);

  1352.     signal(SIGSEGV, sighandler);

  1353. #ifdef SIGBUS

  1354.     signal(SIGBUS, sighandler);

  1355. #endif

  1356.     return func_ptr();

  1357. }

  1358. EOF

  1359. }

  1360. 

  1361. check_type(){

  1362.     log check_type "$@"

  1363.     headers=$1

  1364.     type=$2

  1365.     shift 2

  1366.     disable_sanitized "$type"

  1367.     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1368. }

  1369. 

  1370. check_struct(){

  1371.     log check_struct "$@"

  1372.     headers=$1

  1373.     struct=$2

  1374.     member=$3

  1375.     shift 3

  1376.     disable_sanitized "${struct}_${member}"

  1377.     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1378.         enable_sanitized "${struct}_${member}"

  1379. }

  1380. 

  1381. check_builtin(){

  1382.     log check_builtin "$@"

  1383.     name=$1

  1384.     headers=$2

  1385.     builtin=$3

  1386.     shift 3

  1387.     disable "$name"

  1388.     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1389. }

  1390. 

  1391. check_compile_assert(){

  1392.     log check_compile_assert "$@"

  1393.     name=$1

  1394.     headers=$2

  1395.     condition=$3

  1396.     shift 3

  1397.     disable "$name"

  1398.     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1399. }

  1400. 

  1401. require(){

  1402.     log require "$@"

  1403.     name_version="$1"

  1404.     name="${1%% *}"

  1405.     shift

  1406.     check_lib $name "$@" || die "ERROR: $name_version not found"

  1407. }

  1408. 

  1409. require_cpp(){

  1410.     name="$1"

  1411.     headers="$2"

  1412.     classes="$3"

  1413.     shift 3

  1414.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1415. }

  1416. 

  1417. require_header(){

  1418.     log require_header "$@"

  1419.     headers="$1"

  1420.     check_header "$@" || die "ERROR: $headers not found"

  1421. }

  1422. 

  1423. require_cpp_condition(){

  1424.     log require_cpp_condition "$@"

  1425.     condition="$2"

  1426.     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"

  1427. }

  1428. 

  1429. require_pkg_config(){

  1430.     log require_pkg_config "$@"

  1431.     pkg_version="$2"

  1432.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1433. }

  1434. 

  1435. hostcc_e(){

  1436.     eval printf '%s\\n' $HOSTCC_E

  1437. }

  1438. 

  1439. hostcc_o(){

  1440.     eval printf '%s\\n' $HOSTCC_O

  1441. }

  1442. 

  1443. test_host_cc(){

  1444.     log test_host_cc "$@"

  1445.     cat > $TMPC

  1446.     log_file $TMPC

  1447.     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1448. }

  1449. 

  1450. test_host_cpp(){

  1451.     log test_host_cpp "$@"

  1452.     cat > $TMPC

  1453.     log_file $TMPC

  1454.     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1455. }

  1456. 

  1457. check_host_cppflags(){

  1458.     log check_host_cppflags "$@"

  1459.     test_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1460. #include <stdlib.h>

  1461. EOF

  1462. }

  1463. 

  1464. check_host_cflags(){

  1465.     log check_host_cflags "$@"

  1466.     set -- $($host_cflags_filter "$@")

  1467.     test_host_cc "$@" <<EOF && append host_cflags "$@"

  1468. int x;

  1469. EOF

  1470. }

  1471. 

  1472. test_host_cpp_condition(){

  1473.     log test_host_cpp_condition "$@"

  1474.     header=$1

  1475.     condition=$2

  1476.     shift 2

  1477.     test_host_cpp "$@" <<EOF

  1478. #include <$header>

  1479. #if !($condition)

  1480. #error "unsatisfied condition: $condition"

  1481. #endif

  1482. EOF

  1483. }

  1484. 

  1485. check_host_cpp_condition(){

  1486.     log check_host_cpp_condition "$@"

  1487.     name=$1

  1488.     shift 1

  1489.     disable $name

  1490.     test_host_cpp_condition "$@" && enable $name

  1491. }

  1492. 

  1493. cp_if_changed(){

  1494.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1495.     mkdir -p "$(dirname $2)"

  1496.     cp -f "$1" "$2"

  1497. }

  1498. 

  1499. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1500. # system-dependent things.

  1501. 

  1502. AVCODEC_COMPONENTS="

  1503.     bsfs

  1504.     decoders

  1505.     encoders

  1506.     hwaccels

  1507.     parsers

  1508. "

  1509. 

  1510. AVDEVICE_COMPONENTS="

  1511.     indevs

  1512.     outdevs

  1513. "

  1514. 

  1515. AVFILTER_COMPONENTS="

  1516.     filters

  1517. "

  1518. 

  1519. AVFORMAT_COMPONENTS="

  1520.     demuxers

  1521.     muxers

  1522.     protocols

  1523. "

  1524. 

  1525. COMPONENT_LIST="

  1526.     $AVCODEC_COMPONENTS

  1527.     $AVDEVICE_COMPONENTS

  1528.     $AVFILTER_COMPONENTS

  1529.     $AVFORMAT_COMPONENTS

  1530. "

  1531. 

  1532. EXAMPLE_LIST="

  1533.     avio_dir_cmd_example

  1534.     avio_reading_example

  1535.     decode_audio_example

  1536.     decode_video_example

  1537.     demuxing_decoding_example

  1538.     encode_audio_example

  1539.     encode_video_example

  1540.     extract_mvs_example

  1541.     filter_audio_example

  1542.     filtering_audio_example

  1543.     filtering_video_example

  1544.     http_multiclient_example

  1545.     hw_decode_example

  1546.     metadata_example

  1547.     muxing_example

  1548.     qsvdec_example

  1549.     remuxing_example

  1550.     resampling_audio_example

  1551.     scaling_video_example

  1552.     transcode_aac_example

  1553.     transcoding_example

  1554.     vaapi_encode_example

  1555.     vaapi_transcode_example

  1556. "

  1557. 

  1558. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1559.     alsa

  1560.     appkit

  1561.     avfoundation

  1562.     bzlib

  1563.     coreimage

  1564.     iconv

  1565.     libxcb

  1566.     libxcb_shm

  1567.     libxcb_shape

  1568.     libxcb_xfixes

  1569.     lzma

  1570.     schannel

  1571.     sdl2

  1572.     securetransport

  1573.     sndio

  1574.     xlib

  1575.     zlib

  1576. "

  1577. 

  1578. EXTERNAL_LIBRARY_GPL_LIST="

  1579.     avisynth

  1580.     frei0r

  1581.     libcdio

  1582.     librubberband

  1583.     libvidstab

  1584.     libx264

  1585.     libx265

  1586.     libxavs

  1587.     libxvid

  1588. "

  1589. 

  1590. EXTERNAL_LIBRARY_NONFREE_LIST="

  1591.     decklink

  1592.     libndi_newtek

  1593.     libfdk_aac

  1594.     openssl

  1595.     libtls

  1596. "

  1597. 

  1598. EXTERNAL_LIBRARY_VERSION3_LIST="

  1599.     gmp

  1600.     libopencore_amrnb

  1601.     libopencore_amrwb

  1602.     libvmaf

  1603.     libvo_amrwbenc

  1604.     rkmpp

  1605. "

  1606. 

  1607. EXTERNAL_LIBRARY_GPLV3_LIST="

  1608.     libsmbclient

  1609. "

  1610. 

  1611. EXTERNAL_LIBRARY_LIST="

  1612.     $EXTERNAL_LIBRARY_GPL_LIST

  1613.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1614.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1615.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1616.     chromaprint

  1617.     gcrypt

  1618.     gnutls

  1619.     jni

  1620.     ladspa

  1621.     libass

  1622.     libbluray

  1623.     libbs2b

  1624.     libcaca

  1625.     libcelt

  1626.     libcodec2

  1627.     libdc1394

  1628.     libdrm

  1629.     libflite

  1630.     libfontconfig

  1631.     libfreetype

  1632.     libfribidi

  1633.     libgme

  1634.     libgsm

  1635.     libiec61883

  1636.     libilbc

  1637.     libjack

  1638.     libkvazaar

  1639.     libmodplug

  1640.     libmp3lame

  1641.     libmysofa

  1642.     libopencv

  1643.     libopenh264

  1644.     libopenjpeg

  1645.     libopenmpt

  1646.     libopus

  1647.     libpulse

  1648.     librsvg

  1649.     librtmp

  1650.     libshine

  1651.     libsmbclient

  1652.     libsnappy

  1653.     libsoxr

  1654.     libspeex

  1655.     libssh

  1656.     libtesseract

  1657.     libtheora

  1658.     libtwolame

  1659.     libv4l2

  1660.     libvorbis

  1661.     libvpx

  1662.     libwavpack

  1663.     libwebp

  1664.     libxml2

  1665.     libzimg

  1666.     libzmq

  1667.     libzvbi

  1668.     lv2

  1669.     mediacodec

  1670.     openal

  1671.     opengl

  1672. "

  1673. 

  1674. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1675.     amf

  1676.     audiotoolbox

  1677.     crystalhd

  1678.     cuda

  1679.     cuvid

  1680.     d3d11va

  1681.     dxva2

  1682.     ffnvcodec

  1683.     nvdec

  1684.     nvenc

  1685.     vaapi

  1686.     vdpau

  1687.     videotoolbox

  1688.     v4l2_m2m

  1689.     xvmc

  1690. "

  1691. 

  1692. # catchall list of things that require external libs to link

  1693. EXTRALIBS_LIST="

  1694.     cpu_init

  1695.     cws2fws

  1696. "

  1697. 

  1698. HWACCEL_LIBRARY_NONFREE_LIST="

  1699.     cuda_sdk

  1700.     libnpp

  1701. "

  1702. 

  1703. HWACCEL_LIBRARY_LIST="

  1704.     $HWACCEL_LIBRARY_NONFREE_LIST

  1705.     libmfx

  1706.     mmal

  1707.     omx

  1708.     opencl

  1709. "

  1710. 

  1711. DOCUMENT_LIST="

  1712.     doc

  1713.     htmlpages

  1714.     manpages

  1715.     podpages

  1716.     txtpages

  1717. "

  1718. 

  1719. FEATURE_LIST="

  1720.     ftrapv

  1721.     gray

  1722.     hardcoded_tables

  1723.     omx_rpi

  1724.     runtime_cpudetect

  1725.     safe_bitstream_reader

  1726.     shared

  1727.     small

  1728.     static

  1729.     swscale_alpha

  1730. "

  1731. 

  1732. LIBRARY_LIST="

  1733.     avcodec

  1734.     avdevice

  1735.     avfilter

  1736.     avformat

  1737.     avresample

  1738.     avutil

  1739.     postproc

  1740.     swresample

  1741.     swscale

  1742. "

  1743. 

  1744. LICENSE_LIST="

  1745.     gpl

  1746.     nonfree

  1747.     version3

  1748. "

  1749. 

  1750. PROGRAM_LIST="

  1751.     ffplay

  1752.     ffprobe

  1753.     ffmpeg

  1754. "

  1755. 

  1756. SUBSYSTEM_LIST="

  1757.     dct

  1758.     dwt

  1759.     error_resilience

  1760.     faan

  1761.     fast_unaligned

  1762.     fft

  1763.     lsp

  1764.     lzo

  1765.     mdct

  1766.     pixelutils

  1767.     network

  1768.     rdft

  1769. "

  1770. 

  1771. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1772. CONFIG_LIST="

  1773.     $DOCUMENT_LIST

  1774.     $EXAMPLE_LIST

  1775.     $EXTERNAL_LIBRARY_LIST

  1776.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1777.     $HWACCEL_LIBRARY_LIST

  1778.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1779.     $FEATURE_LIST

  1780.     $LICENSE_LIST

  1781.     $LIBRARY_LIST

  1782.     $PROGRAM_LIST

  1783.     $SUBSYSTEM_LIST

  1784.     autodetect

  1785.     fontconfig

  1786.     linux_perf

  1787.     memory_poisoning

  1788.     neon_clobber_test

  1789.     ossfuzz

  1790.     pic

  1791.     thumb

  1792.     valgrind_backtrace

  1793.     xmm_clobber_test

  1794.     $COMPONENT_LIST

  1795. "

  1796. 

  1797. THREADS_LIST="

  1798.     pthreads

  1799.     os2threads

  1800.     w32threads

  1801. "

  1802. 

  1803. ATOMICS_LIST="

  1804.     atomics_gcc

  1805.     atomics_suncc

  1806.     atomics_win32

  1807. "

  1808. 

  1809. AUTODETECT_LIBS="

  1810.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1811.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1812.     $THREADS_LIST

  1813. "

  1814. 

  1815. ARCH_LIST="

  1816.     aarch64

  1817.     alpha

  1818.     arm

  1819.     avr32

  1820.     avr32_ap

  1821.     avr32_uc

  1822.     bfin

  1823.     ia64

  1824.     m68k

  1825.     mips

  1826.     mips64

  1827.     parisc

  1828.     ppc

  1829.     ppc64

  1830.     s390

  1831.     sh4

  1832.     sparc

  1833.     sparc64

  1834.     tilegx

  1835.     tilepro

  1836.     tomi

  1837.     x86

  1838.     x86_32

  1839.     x86_64

  1840. "

  1841. 

  1842. ARCH_EXT_LIST_ARM="

  1843.     armv5te

  1844.     armv6

  1845.     armv6t2

  1846.     armv8

  1847.     neon

  1848.     vfp

  1849.     vfpv3

  1850.     setend

  1851. "

  1852. 

  1853. ARCH_EXT_LIST_MIPS="

  1854.     mipsfpu

  1855.     mips32r2

  1856.     mips32r5

  1857.     mips64r2

  1858.     mips32r6

  1859.     mips64r6

  1860.     mipsdsp

  1861.     mipsdspr2

  1862.     msa

  1863. "

  1864. 

  1865. ARCH_EXT_LIST_LOONGSON="

  1866.     loongson2

  1867.     loongson3

  1868.     mmi

  1869. "

  1870. 

  1871. ARCH_EXT_LIST_X86_SIMD="

  1872.     aesni

  1873.     amd3dnow

  1874.     amd3dnowext

  1875.     avx

  1876.     avx2

  1877.     avx512

  1878.     fma3

  1879.     fma4

  1880.     mmx

  1881.     mmxext

  1882.     sse

  1883.     sse2

  1884.     sse3

  1885.     sse4

  1886.     sse42

  1887.     ssse3

  1888.     xop

  1889. "

  1890. 

  1891. ARCH_EXT_LIST_PPC="

  1892.     altivec

  1893.     dcbzl

  1894.     ldbrx

  1895.     power8

  1896.     ppc4xx

  1897.     vsx

  1898. "

  1899. 

  1900. ARCH_EXT_LIST_X86="

  1901.     $ARCH_EXT_LIST_X86_SIMD

  1902.     cpunop

  1903.     i686

  1904. "

  1905. 

  1906. ARCH_EXT_LIST="

  1907.     $ARCH_EXT_LIST_ARM

  1908.     $ARCH_EXT_LIST_PPC

  1909.     $ARCH_EXT_LIST_X86

  1910.     $ARCH_EXT_LIST_MIPS

  1911.     $ARCH_EXT_LIST_LOONGSON

  1912. "

  1913. 

  1914. ARCH_FEATURES="

  1915.     aligned_stack

  1916.     fast_64bit

  1917.     fast_clz

  1918.     fast_cmov

  1919.     local_aligned

  1920.     simd_align_16

  1921.     simd_align_32

  1922.     simd_align_64

  1923. "

  1924. 

  1925. BUILTIN_LIST="

  1926.     atomic_cas_ptr

  1927.     machine_rw_barrier

  1928.     MemoryBarrier

  1929.     mm_empty

  1930.     rdtsc

  1931.     sem_timedwait

  1932.     sync_val_compare_and_swap

  1933. "

  1934. HAVE_LIST_CMDLINE="

  1935.     inline_asm

  1936.     symver

  1937.     x86asm

  1938. "

  1939. 

  1940. HAVE_LIST_PUB="

  1941.     bigendian

  1942.     fast_unaligned

  1943. "

  1944. 

  1945. HEADERS_LIST="

  1946.     arpa_inet_h

  1947.     asm_types_h

  1948.     cdio_paranoia_h

  1949.     cdio_paranoia_paranoia_h

  1950.     cuda_h

  1951.     dispatch_dispatch_h

  1952.     dev_bktr_ioctl_bt848_h

  1953.     dev_bktr_ioctl_meteor_h

  1954.     dev_ic_bt8xx_h

  1955.     dev_video_bktr_ioctl_bt848_h

  1956.     dev_video_meteor_ioctl_meteor_h

  1957.     direct_h

  1958.     dirent_h

  1959.     dxgidebug_h

  1960.     dxva_h

  1961.     ES2_gl_h

  1962.     gsm_h

  1963.     io_h

  1964.     machine_ioctl_bt848_h

  1965.     machine_ioctl_meteor_h

  1966.     malloc_h

  1967.     opencv2_core_core_c_h

  1968.     OpenGL_gl3_h

  1969.     poll_h

  1970.     sys_param_h

  1971.     sys_resource_h

  1972.     sys_select_h

  1973.     sys_soundcard_h

  1974.     sys_time_h

  1975.     sys_un_h

  1976.     sys_videoio_h

  1977.     termios_h

  1978.     udplite_h

  1979.     unistd_h

  1980.     valgrind_valgrind_h

  1981.     windows_h

  1982.     winsock2_h

  1983. "

  1984. 

  1985. INTRINSICS_LIST="

  1986.     intrinsics_neon

  1987. "

  1988. 

  1989. COMPLEX_FUNCS="

  1990.     cabs

  1991.     cexp

  1992. "

  1993. 

  1994. MATH_FUNCS="

  1995.     atanf

  1996.     atan2f

  1997.     cbrt

  1998.     cbrtf

  1999.     copysign

  2000.     cosf

  2001.     erf

  2002.     exp2

  2003.     exp2f

  2004.     expf

  2005.     hypot

  2006.     isfinite

  2007.     isinf

  2008.     isnan

  2009.     ldexpf

  2010.     llrint

  2011.     llrintf

  2012.     log2

  2013.     log2f

  2014.     log10f

  2015.     lrint

  2016.     lrintf

  2017.     powf

  2018.     rint

  2019.     round

  2020.     roundf

  2021.     sinf

  2022.     trunc

  2023.     truncf

  2024. "

  2025. 

  2026. SYSTEM_FEATURES="

  2027.     dos_paths

  2028.     libc_msvcrt

  2029.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2030.     section_data_rel_ro

  2031.     threads

  2032.     uwp

  2033.     winrt

  2034. "

  2035. 

  2036. SYSTEM_FUNCS="

  2037.     access

  2038.     aligned_malloc

  2039.     arc4random

  2040.     clock_gettime

  2041.     closesocket

  2042.     CommandLineToArgvW

  2043.     fcntl

  2044.     getaddrinfo

  2045.     gethrtime

  2046.     getopt

  2047.     GetProcessAffinityMask

  2048.     GetProcessMemoryInfo

  2049.     GetProcessTimes

  2050.     getrusage

  2051.     GetSystemTimeAsFileTime

  2052.     gettimeofday

  2053.     glob

  2054.     glXGetProcAddress

  2055.     gmtime_r

  2056.     inet_aton

  2057.     isatty

  2058.     kbhit

  2059.     localtime_r

  2060.     lstat

  2061.     lzo1x_999_compress

  2062.     mach_absolute_time

  2063.     MapViewOfFile

  2064.     memalign

  2065.     mkstemp

  2066.     mmap

  2067.     mprotect

  2068.     nanosleep

  2069.     PeekNamedPipe

  2070.     posix_memalign

  2071.     pthread_cancel

  2072.     sched_getaffinity

  2073.     SecItemImport

  2074.     SetConsoleTextAttribute

  2075.     SetConsoleCtrlHandler

  2076.     setmode

  2077.     setrlimit

  2078.     Sleep

  2079.     strerror_r

  2080.     sysconf

  2081.     sysctl

  2082.     usleep

  2083.     UTGetOSTypeFromString

  2084.     VirtualAlloc

  2085.     wglGetProcAddress

  2086. "

  2087. 

  2088. SYSTEM_LIBRARIES="

  2089.     vaapi_drm

  2090.     vaapi_x11

  2091.     vdpau_x11

  2092.     wincrypt

  2093. "

  2094. 

  2095. TOOLCHAIN_FEATURES="

  2096.     as_arch_directive

  2097.     as_fpu_directive

  2098.     as_func

  2099.     as_object_arch

  2100.     asm_mod_q

  2101.     blocks_extension

  2102.     ebp_available

  2103.     ebx_available

  2104.     gnu_as

  2105.     gnu_windres

  2106.     ibm_asm

  2107.     inline_asm_direct_symbol_refs

  2108.     inline_asm_labels

  2109.     inline_asm_nonlocal_labels

  2110.     pragma_deprecated

  2111.     rsync_contimeout

  2112.     symver_asm_label

  2113.     symver_gnu_asm

  2114.     vfp_args

  2115.     xform_asm

  2116.     xmm_clobbers

  2117. "

  2118. 

  2119. TYPES_LIST="

  2120.     kCMVideoCodecType_HEVC

  2121.     socklen_t

  2122.     struct_addrinfo

  2123.     struct_group_source_req

  2124.     struct_ip_mreq_source

  2125.     struct_ipv6_mreq

  2126.     struct_msghdr_msg_flags

  2127.     struct_pollfd

  2128.     struct_rusage_ru_maxrss

  2129.     struct_sctp_event_subscribe

  2130.     struct_sockaddr_in6

  2131.     struct_sockaddr_sa_len

  2132.     struct_sockaddr_storage

  2133.     struct_stat_st_mtim_tv_nsec

  2134.     struct_v4l2_frmivalenum_discrete

  2135. "

  2136. 

  2137. HAVE_LIST="

  2138.     $ARCH_EXT_LIST

  2139.     $(add_suffix _external $ARCH_EXT_LIST)

  2140.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2141.     $ARCH_FEATURES

  2142.     $BUILTIN_LIST

  2143.     $COMPLEX_FUNCS

  2144.     $HAVE_LIST_CMDLINE

  2145.     $HAVE_LIST_PUB

  2146.     $HEADERS_LIST

  2147.     $INTRINSICS_LIST

  2148.     $MATH_FUNCS

  2149.     $SYSTEM_FEATURES

  2150.     $SYSTEM_FUNCS

  2151.     $SYSTEM_LIBRARIES

  2152.     $THREADS_LIST

  2153.     $TOOLCHAIN_FEATURES

  2154.     $TYPES_LIST

  2155.     makeinfo

  2156.     makeinfo_html

  2157.     opencl_d3d11

  2158.     opencl_drm_arm

  2159.     opencl_dxva2

  2160.     opencl_vaapi_beignet

  2161.     opencl_vaapi_intel_media

  2162.     perl

  2163.     pod2man

  2164.     texi2html

  2165. "

  2166. 

  2167. # options emitted with CONFIG_ prefix but not available on the command line

  2168. CONFIG_EXTRA="

  2169.     aandcttables

  2170.     ac3dsp

  2171.     adts_header

  2172.     audio_frame_queue

  2173.     audiodsp

  2174.     blockdsp

  2175.     bswapdsp

  2176.     cabac

  2177.     cbs

  2178.     cbs_h264

  2179.     cbs_h265

  2180.     cbs_mpeg2

  2181.     dirac_parse

  2182.     dvprofile

  2183.     exif

  2184.     faandct

  2185.     faanidct

  2186.     fdctdsp

  2187.     flacdsp

  2188.     fmtconvert

  2189.     frame_thread_encoder

  2190.     g722dsp

  2191.     golomb

  2192.     gplv3

  2193.     h263dsp

  2194.     h264chroma

  2195.     h264dsp

  2196.     h264parse

  2197.     h264pred

  2198.     h264qpel

  2199.     hevcparse

  2200.     hpeldsp

  2201.     huffman

  2202.     huffyuvdsp

  2203.     huffyuvencdsp

  2204.     idctdsp

  2205.     iirfilter

  2206.     mdct15

  2207.     intrax8

  2208.     iso_media

  2209.     ividsp

  2210.     jpegtables

  2211.     lgplv3

  2212.     libx262

  2213.     llauddsp

  2214.     llviddsp

  2215.     llvidencdsp

  2216.     lpc

  2217.     lzf

  2218.     me_cmp

  2219.     mpeg_er

  2220.     mpegaudio

  2221.     mpegaudiodsp

  2222.     mpegaudioheader

  2223.     mpegvideo

  2224.     mpegvideoenc

  2225.     mss34dsp

  2226.     pixblockdsp

  2227.     qpeldsp

  2228.     qsv

  2229.     qsvdec

  2230.     qsvenc

  2231.     qsvvpp

  2232.     rangecoder

  2233.     riffdec

  2234.     riffenc

  2235.     rtpdec

  2236.     rtpenc_chain

  2237.     rv34dsp

  2238.     sinewin

  2239.     snappy

  2240.     srtp

  2241.     startcode

  2242.     texturedsp

  2243.     texturedspenc

  2244.     tpeldsp

  2245.     vaapi_1

  2246.     vaapi_encode

  2247.     vc1dsp

  2248.     videodsp

  2249.     vp3dsp

  2250.     vp56dsp

  2251.     vp8dsp

  2252.     wma_freqs

  2253.     wmv2dsp

  2254. "

  2255. 

  2256. CMDLINE_SELECT="

  2257.     $ARCH_EXT_LIST

  2258.     $CONFIG_LIST

  2259.     $HAVE_LIST_CMDLINE

  2260.     $THREADS_LIST

  2261.     asm

  2262.     cross_compile

  2263.     debug

  2264.     extra_warnings

  2265.     logging

  2266.     lto

  2267.     optimizations

  2268.     rpath

  2269.     stripping

  2270. "

  2271. 

  2272. PATHS_LIST="

  2273.     bindir

  2274.     datadir

  2275.     docdir

  2276.     incdir

  2277.     libdir

  2278.     mandir

  2279.     pkgconfigdir

  2280.     prefix

  2281.     shlibdir

  2282.     install_name_dir

  2283. "

  2284. 

  2285. CMDLINE_SET="

  2286.     $PATHS_LIST

  2287.     ar

  2288.     arch

  2289.     as

  2290.     assert_level

  2291.     build_suffix

  2292.     cc

  2293.     objcc

  2294.     cpu

  2295.     cross_prefix

  2296.     custom_allocator

  2297.     cxx

  2298.     dep_cc

  2299.     doxygen

  2300.     env

  2301.     extra_version

  2302.     gas

  2303.     host_cc

  2304.     host_cflags

  2305.     host_extralibs

  2306.     host_ld

  2307.     host_ldflags

  2308.     host_os

  2309.     ignore_tests

  2310.     install

  2311.     ld

  2312.     ln_s

  2313.     logfile

  2314.     malloc_prefix

  2315.     nm

  2316.     optflags

  2317.     nvccflags

  2318.     pkg_config

  2319.     pkg_config_flags

  2320.     progs_suffix

  2321.     random_seed

  2322.     ranlib

  2323.     samples

  2324.     strip

  2325.     sws_max_filter_size

  2326.     sysinclude

  2327.     sysroot

  2328.     target_exec

  2329.     target_os

  2330.     target_path

  2331.     target_samples

  2332.     tempprefix

  2333.     toolchain

  2334.     valgrind

  2335.     x86asmexe

  2336. "

  2337. 

  2338. CMDLINE_APPEND="

  2339.     extra_cflags

  2340.     extra_cxxflags

  2341.     extra_objcflags

  2342.     host_cppflags

  2343. "

  2344. 

  2345. # code dependency declarations

  2346. 

  2347. # architecture extensions

  2348. 

  2349. armv5te_deps="arm"

  2350. armv6_deps="arm"

  2351. armv6t2_deps="arm"

  2352. armv8_deps="aarch64"

  2353. neon_deps_any="aarch64 arm"

  2354. intrinsics_neon_deps="neon"

  2355. vfp_deps_any="aarch64 arm"

  2356. vfpv3_deps="vfp"

  2357. setend_deps="arm"

  2358. 

  2359. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2360. 

  2361. altivec_deps="ppc"

  2362. dcbzl_deps="ppc"

  2363. ldbrx_deps="ppc"

  2364. ppc4xx_deps="ppc"

  2365. vsx_deps="altivec"

  2366. power8_deps="vsx"

  2367. 

  2368. loongson2_deps="mips"

  2369. loongson3_deps="mips"

  2370. mips32r2_deps="mips"

  2371. mips32r5_deps="mips"

  2372. mips32r6_deps="mips"

  2373. mips64r2_deps="mips"

  2374. mips64r6_deps="mips"

  2375. mipsfpu_deps="mips"

  2376. mipsdsp_deps="mips"

  2377. mipsdspr2_deps="mips"

  2378. mmi_deps="mips"

  2379. msa_deps="mipsfpu"

  2380. 

  2381. cpunop_deps="i686"

  2382. x86_64_select="i686"

  2383. x86_64_suggest="fast_cmov"

  2384. 

  2385. amd3dnow_deps="mmx"

  2386. amd3dnowext_deps="amd3dnow"

  2387. i686_deps="x86"

  2388. mmx_deps="x86"

  2389. mmxext_deps="mmx"

  2390. sse_deps="mmxext"

  2391. sse2_deps="sse"

  2392. sse3_deps="sse2"

  2393. ssse3_deps="sse3"

  2394. sse4_deps="ssse3"

  2395. sse42_deps="sse4"

  2396. aesni_deps="sse42"

  2397. avx_deps="sse42"

  2398. xop_deps="avx"

  2399. fma3_deps="avx"

  2400. fma4_deps="avx"

  2401. avx2_deps="avx"

  2402. avx512_deps="avx2"

  2403. 

  2404. mmx_external_deps="x86asm"

  2405. mmx_inline_deps="inline_asm x86"

  2406. mmx_suggest="mmx_external mmx_inline"

  2407. 

  2408. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2409.     eval dep=\$${ext}_deps

  2410.     eval ${ext}_external_deps='"${dep}_external"'

  2411.     eval ${ext}_inline_deps='"${dep}_inline"'

  2412.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2413. done

  2414. 

  2415. aligned_stack_if_any="aarch64 ppc x86"

  2416. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2417. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2418. fast_unaligned_if_any="aarch64 ppc x86"

  2419. simd_align_16_if_any="altivec neon sse"

  2420. simd_align_32_if_any="avx"

  2421. simd_align_64_if_any="avx512"

  2422. 

  2423. # system capabilities

  2424. symver_if_any="symver_asm_label symver_gnu_asm"

  2425. valgrind_backtrace_conflict="optimizations"

  2426. valgrind_backtrace_deps="valgrind_valgrind_h"

  2427. 

  2428. # threading support

  2429. atomics_gcc_if="sync_val_compare_and_swap"

  2430. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2431. atomics_win32_if="MemoryBarrier"

  2432. atomics_native_if_any="$ATOMICS_LIST"

  2433. w32threads_deps="atomics_native"

  2434. threads_if_any="$THREADS_LIST"

  2435. 

  2436. # subsystems

  2437. cbs_h264_select="cbs golomb"

  2438. cbs_h265_select="cbs golomb"

  2439. cbs_mpeg2_select="cbs"

  2440. dct_select="rdft"

  2441. dirac_parse_select="golomb"

  2442. error_resilience_select="me_cmp"

  2443. faandct_deps="faan"

  2444. faandct_select="fdctdsp"

  2445. faanidct_deps="faan"

  2446. faanidct_select="idctdsp"

  2447. h264dsp_select="startcode"

  2448. hevcparse_select="golomb"

  2449. frame_thread_encoder_deps="encoders threads"

  2450. intrax8_select="blockdsp idctdsp"

  2451. mdct_select="fft"

  2452. mdct15_select="fft"

  2453. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2454. mpeg_er_select="error_resilience"

  2455. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2456. mpegaudiodsp_select="dct"

  2457. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2458. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2459. vc1dsp_select="h264chroma qpeldsp startcode"

  2460. rdft_select="fft"

  2461. 

  2462. # decoders / encoders

  2463. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2464. aac_fixed_decoder_select="adts_header mdct sinewin"

  2465. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2466. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2467. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2468. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2469. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2470. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2471. adpcm_g722_decoder_select="g722dsp"

  2472. adpcm_g722_encoder_select="g722dsp"

  2473. aic_decoder_select="golomb idctdsp"

  2474. alac_encoder_select="lpc"

  2475. als_decoder_select="bswapdsp"

  2476. amrnb_decoder_select="lsp"

  2477. amrwb_decoder_select="lsp"

  2478. amv_decoder_select="sp5x_decoder exif"

  2479. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2480. ape_decoder_select="bswapdsp llauddsp"

  2481. apng_decoder_deps="zlib"

  2482. apng_encoder_deps="zlib"

  2483. apng_encoder_select="llvidencdsp"

  2484. aptx_decoder_select="audio_frame_queue"

  2485. aptx_encoder_select="audio_frame_queue"

  2486. aptx_hd_decoder_select="audio_frame_queue"

  2487. aptx_hd_encoder_select="audio_frame_queue"

  2488. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2489. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2490. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2491. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2492. atrac1_decoder_select="mdct sinewin"

  2493. atrac3_decoder_select="mdct"

  2494. atrac3p_decoder_select="mdct sinewin"

  2495. avrn_decoder_select="exif jpegtables"

  2496. bink_decoder_select="blockdsp hpeldsp"

  2497. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2498. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2499. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2500. clearvideo_decoder_select="idctdsp"

  2501. cllc_decoder_select="bswapdsp"

  2502. comfortnoise_encoder_select="lpc"

  2503. cook_decoder_select="audiodsp mdct sinewin"

  2504. cscd_decoder_select="lzo"

  2505. cscd_decoder_suggest="zlib"

  2506. dca_decoder_select="mdct"

  2507. dds_decoder_select="texturedsp"

  2508. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2509. dnxhd_decoder_select="blockdsp idctdsp"

  2510. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2511. dolby_e_decoder_select="mdct"

  2512. dvvideo_decoder_select="dvprofile idctdsp"

  2513. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2514. dxa_decoder_deps="zlib"

  2515. dxv_decoder_select="lzf texturedsp"

  2516. eac3_decoder_select="ac3_decoder"

  2517. eac3_encoder_select="ac3_encoder"

  2518. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2519. eatgq_decoder_select="aandcttables"

  2520. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2521. exr_decoder_deps="zlib"

  2522. ffv1_decoder_select="rangecoder"

  2523. ffv1_encoder_select="rangecoder"

  2524. ffvhuff_decoder_select="huffyuv_decoder"

  2525. ffvhuff_encoder_select="huffyuv_encoder"

  2526. fic_decoder_select="golomb"

  2527. flac_decoder_select="flacdsp"

  2528. flac_encoder_select="bswapdsp flacdsp lpc"

  2529. flashsv2_decoder_deps="zlib"

  2530. flashsv2_encoder_deps="zlib"

  2531. flashsv_decoder_deps="zlib"

  2532. flashsv_encoder_deps="zlib"

  2533. flv_decoder_select="h263_decoder"

  2534. flv_encoder_select="h263_encoder"

  2535. fourxm_decoder_select="blockdsp bswapdsp"

  2536. fraps_decoder_select="bswapdsp huffman"

  2537. g2m_decoder_deps="zlib"

  2538. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2539. g729_decoder_select="audiodsp"

  2540. h261_decoder_select="mpegvideo"

  2541. h261_encoder_select="aandcttables mpegvideoenc"

  2542. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2543. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2544. h263i_decoder_select="h263_decoder"

  2545. h263p_decoder_select="h263_decoder"

  2546. h263p_encoder_select="h263_encoder"

  2547. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2548. h264_decoder_suggest="error_resilience"

  2549. hap_decoder_select="snappy texturedsp"

  2550. hap_encoder_deps="libsnappy"

  2551. hap_encoder_select="texturedspenc"

  2552. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2553. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2554. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2555. iac_decoder_select="imc_decoder"

  2556. imc_decoder_select="bswapdsp fft mdct sinewin"

  2557. indeo3_decoder_select="hpeldsp"

  2558. indeo4_decoder_select="ividsp"

  2559. indeo5_decoder_select="ividsp"

  2560. interplay_video_decoder_select="hpeldsp"

  2561. jpegls_decoder_select="mjpeg_decoder"

  2562. jv_decoder_select="blockdsp"

  2563. lagarith_decoder_select="llviddsp"

  2564. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2565. magicyuv_decoder_select="llviddsp"

  2566. magicyuv_encoder_select="llvidencdsp"

  2567. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2568. metasound_decoder_select="lsp mdct sinewin"

  2569. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2570. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2571. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2572. mjpegb_decoder_select="mjpeg_decoder"

  2573. mlp_decoder_select="mlp_parser"

  2574. mlp_encoder_select="lpc"

  2575. motionpixels_decoder_select="bswapdsp"

  2576. mp1_decoder_select="mpegaudio"

  2577. mp1float_decoder_select="mpegaudio"

  2578. mp2_decoder_select="mpegaudio"

  2579. mp2float_decoder_select="mpegaudio"

  2580. mp3_decoder_select="mpegaudio"

  2581. mp3adu_decoder_select="mpegaudio"

  2582. mp3adufloat_decoder_select="mpegaudio"

  2583. mp3float_decoder_select="mpegaudio"

  2584. mp3on4_decoder_select="mpegaudio"

  2585. mp3on4float_decoder_select="mpegaudio"

  2586. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2587. mpc8_decoder_select="mpegaudiodsp"

  2588. mpegvideo_decoder_select="mpegvideo"

  2589. mpeg1video_decoder_select="mpegvideo"

  2590. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2591. mpeg2video_decoder_select="mpegvideo"

  2592. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2593. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2594. mpeg4_encoder_select="h263_encoder"

  2595. msa1_decoder_select="mss34dsp"

  2596. mscc_decoder_deps="zlib"

  2597. msmpeg4v1_decoder_select="h263_decoder"

  2598. msmpeg4v2_decoder_select="h263_decoder"

  2599. msmpeg4v2_encoder_select="h263_encoder"

  2600. msmpeg4v3_decoder_select="h263_decoder"

  2601. msmpeg4v3_encoder_select="h263_encoder"

  2602. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2603. mts2_decoder_select="mss34dsp"

  2604. mxpeg_decoder_select="mjpeg_decoder"

  2605. nellymoser_decoder_select="mdct sinewin"

  2606. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2607. nuv_decoder_select="idctdsp lzo"

  2608. on2avc_decoder_select="mdct"

  2609. opus_decoder_deps="swresample"

  2610. opus_decoder_select="mdct15"

  2611. opus_encoder_select="audio_frame_queue mdct15"

  2612. png_decoder_deps="zlib"

  2613. png_encoder_deps="zlib"

  2614. png_encoder_select="llvidencdsp"

  2615. prores_decoder_select="blockdsp idctdsp"

  2616. prores_encoder_select="fdctdsp"

  2617. qcelp_decoder_select="lsp"

  2618. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2619. ra_144_decoder_select="audiodsp"

  2620. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2621. ralf_decoder_select="golomb"

  2622. rawvideo_decoder_select="bswapdsp"

  2623. rscc_decoder_deps="zlib"

  2624. rtjpeg_decoder_select="me_cmp"

  2625. rv10_decoder_select="h263_decoder"

  2626. rv10_encoder_select="h263_encoder"

  2627. rv20_decoder_select="h263_decoder"

  2628. rv20_encoder_select="h263_encoder"

  2629. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2630. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2631. screenpresso_decoder_deps="zlib"

  2632. shorten_decoder_select="bswapdsp"

  2633. sipr_decoder_select="lsp"

  2634. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2635. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2636. sonic_decoder_select="golomb rangecoder"

  2637. sonic_encoder_select="golomb rangecoder"

  2638. sonic_ls_encoder_select="golomb rangecoder"

  2639. sp5x_decoder_select="mjpeg_decoder"

  2640. srgc_decoder_deps="zlib"

  2641. svq1_decoder_select="hpeldsp"

  2642. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2643. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2644. svq3_decoder_suggest="zlib"

  2645. tak_decoder_select="audiodsp"

  2646. tdsc_decoder_deps="zlib"

  2647. tdsc_decoder_select="mjpeg_decoder"

  2648. theora_decoder_select="vp3_decoder"

  2649. thp_decoder_select="mjpeg_decoder"

  2650. tiff_decoder_suggest="zlib lzma"

  2651. tiff_encoder_suggest="zlib"

  2652. truehd_decoder_select="mlp_parser"

  2653. truehd_encoder_select="lpc"

  2654. truemotion2_decoder_select="bswapdsp"

  2655. truespeech_decoder_select="bswapdsp"

  2656. tscc_decoder_deps="zlib"

  2657. twinvq_decoder_select="mdct lsp sinewin"

  2658. txd_decoder_select="texturedsp"

  2659. utvideo_decoder_select="bswapdsp llviddsp"

  2660. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2661. vble_decoder_select="llviddsp"

  2662. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2663. vc1image_decoder_select="vc1_decoder"

  2664. vorbis_decoder_select="mdct"

  2665. vorbis_encoder_select="audio_frame_queue mdct"

  2666. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2667. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2668. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2669. vp6a_decoder_select="vp6_decoder"

  2670. vp6f_decoder_select="vp6_decoder"

  2671. vp7_decoder_select="h264pred videodsp vp8dsp"

  2672. vp8_decoder_select="h264pred videodsp vp8dsp"

  2673. vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"

  2674. webp_decoder_select="vp8_decoder exif"

  2675. wmalossless_decoder_select="llauddsp"

  2676. wmapro_decoder_select="mdct sinewin wma_freqs"

  2677. wmav1_decoder_select="mdct sinewin wma_freqs"

  2678. wmav1_encoder_select="mdct sinewin wma_freqs"

  2679. wmav2_decoder_select="mdct sinewin wma_freqs"

  2680. wmav2_encoder_select="mdct sinewin wma_freqs"

  2681. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2682. wmv1_decoder_select="h263_decoder"

  2683. wmv1_encoder_select="h263_encoder"

  2684. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2685. wmv2_encoder_select="h263_encoder wmv2dsp"

  2686. wmv3_decoder_select="vc1_decoder"

  2687. wmv3image_decoder_select="wmv3_decoder"

  2688. xma1_decoder_select="wmapro_decoder"

  2689. xma2_decoder_select="wmapro_decoder"

  2690. zerocodec_decoder_deps="zlib"

  2691. zlib_decoder_deps="zlib"

  2692. zlib_encoder_deps="zlib"

  2693. zmbv_decoder_deps="zlib"

  2694. zmbv_encoder_deps="zlib"

  2695. 

  2696. # hardware accelerators

  2697. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2698. cuda_deps="ffnvcodec"

  2699. cuvid_deps="ffnvcodec"

  2700. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2701. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2702. ffnvcodec_deps_any="libdl LoadLibrary"

  2703. nvdec_deps="ffnvcodec"

  2704. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2705. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2706. xvmc_deps="X11_extensions_XvMClib_h"

  2707. 

  2708. h263_vaapi_hwaccel_deps="vaapi"

  2709. h263_vaapi_hwaccel_select="h263_decoder"

  2710. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2711. h263_videotoolbox_hwaccel_select="h263_decoder"

  2712. h264_d3d11va_hwaccel_deps="d3d11va"

  2713. h264_d3d11va_hwaccel_select="h264_decoder"

  2714. h264_d3d11va2_hwaccel_deps="d3d11va"

  2715. h264_d3d11va2_hwaccel_select="h264_decoder"

  2716. h264_dxva2_hwaccel_deps="dxva2"

  2717. h264_dxva2_hwaccel_select="h264_decoder"

  2718. h264_nvdec_hwaccel_deps="nvdec"

  2719. h264_nvdec_hwaccel_select="h264_decoder"

  2720. h264_vaapi_hwaccel_deps="vaapi"

  2721. h264_vaapi_hwaccel_select="h264_decoder"

  2722. h264_vdpau_hwaccel_deps="vdpau"

  2723. h264_vdpau_hwaccel_select="h264_decoder"

  2724. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2725. h264_videotoolbox_hwaccel_select="h264_decoder"

  2726. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2727. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2728. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2729. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2730. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2731. hevc_dxva2_hwaccel_select="hevc_decoder"

  2732. hevc_nvdec_hwaccel_deps="nvdec"

  2733. hevc_nvdec_hwaccel_select="hevc_decoder"

  2734. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2735. hevc_vaapi_hwaccel_select="hevc_decoder"

  2736. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2737. hevc_vdpau_hwaccel_select="hevc_decoder"

  2738. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2739. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2740. mjpeg_nvdec_hwaccel_deps="nvdec"

  2741. mjpeg_nvdec_hwaccel_select="mjpeg_decoder"

  2742. mjpeg_vaapi_hwaccel_deps="vaapi"

  2743. mjpeg_vaapi_hwaccel_select="mjpeg_decoder"

  2744. mpeg_xvmc_hwaccel_deps="xvmc"

  2745. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2746. mpeg1_nvdec_hwaccel_deps="nvdec"

  2747. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2748. mpeg1_vdpau_hwaccel_deps="vdpau"

  2749. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2750. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2751. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2752. mpeg1_xvmc_hwaccel_deps="xvmc"

  2753. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2754. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2755. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2756. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2757. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2758. mpeg2_dxva2_hwaccel_deps="dxva2"

  2759. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2760. mpeg2_nvdec_hwaccel_deps="nvdec"

  2761. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2762. mpeg2_vaapi_hwaccel_deps="vaapi"

  2763. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2764. mpeg2_vdpau_hwaccel_deps="vdpau"

  2765. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2766. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2767. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2768. mpeg2_xvmc_hwaccel_deps="xvmc"

  2769. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2770. mpeg4_nvdec_hwaccel_deps="nvdec"

  2771. mpeg4_nvdec_hwaccel_select="mpeg4_decoder"

  2772. mpeg4_vaapi_hwaccel_deps="vaapi"

  2773. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2774. mpeg4_vdpau_hwaccel_deps="vdpau"

  2775. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2776. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2777. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2778. vc1_d3d11va_hwaccel_deps="d3d11va"

  2779. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2780. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2781. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2782. vc1_dxva2_hwaccel_deps="dxva2"

  2783. vc1_dxva2_hwaccel_select="vc1_decoder"

  2784. vc1_nvdec_hwaccel_deps="nvdec"

  2785. vc1_nvdec_hwaccel_select="vc1_decoder"

  2786. vc1_vaapi_hwaccel_deps="vaapi"

  2787. vc1_vaapi_hwaccel_select="vc1_decoder"

  2788. vc1_vdpau_hwaccel_deps="vdpau"

  2789. vc1_vdpau_hwaccel_select="vc1_decoder"

  2790. vp8_nvdec_hwaccel_deps="nvdec"

  2791. vp8_nvdec_hwaccel_select="vp8_decoder"

  2792. vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"

  2793. vp8_vaapi_hwaccel_select="vp8_decoder"

  2794. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2795. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2796. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2797. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2798. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2799. vp9_dxva2_hwaccel_select="vp9_decoder"

  2800. vp9_nvdec_hwaccel_deps="nvdec"

  2801. vp9_nvdec_hwaccel_select="vp9_decoder"

  2802. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2803. vp9_vaapi_hwaccel_select="vp9_decoder"

  2804. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2805. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2806. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2807. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2808. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2809. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2810. 

  2811. # hardware-accelerated codecs

  2812. omx_deps="libdl pthreads"

  2813. omx_rpi_select="omx"

  2814. qsv_deps="libmfx"

  2815. qsvdec_select="qsv"

  2816. qsvenc_select="qsv"

  2817. qsvvpp_select="qsv"

  2818. vaapi_encode_deps="vaapi"

  2819. v4l2_m2m_deps_any="linux_videodev2_h"

  2820. 

  2821. hwupload_cuda_filter_deps="ffnvcodec"

  2822. scale_npp_filter_deps="ffnvcodec libnpp"

  2823. scale_cuda_filter_deps="cuda_sdk"

  2824. thumbnail_cuda_filter_deps="cuda_sdk"

  2825. 

  2826. amf_deps_any="libdl LoadLibrary"

  2827. nvenc_deps="ffnvcodec"

  2828. nvenc_deps_any="libdl LoadLibrary"

  2829. nvenc_encoder_deps="nvenc"

  2830. 

  2831. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2832. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2833. h264_amf_encoder_deps="amf"

  2834. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2835. h264_cuvid_decoder_deps="cuvid"

  2836. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2837. h264_mediacodec_decoder_deps="mediacodec"

  2838. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2839. h264_mmal_decoder_deps="mmal"

  2840. h264_nvenc_encoder_deps="nvenc"

  2841. h264_omx_encoder_deps="omx"

  2842. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"

  2843. h264_qsv_encoder_select="qsvenc"

  2844. h264_rkmpp_decoder_deps="rkmpp"

  2845. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2846. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2847. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2848. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2849. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2850. hevc_amf_encoder_deps="amf"

  2851. hevc_cuvid_decoder_deps="cuvid"

  2852. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2853. hevc_mediacodec_decoder_deps="mediacodec"

  2854. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2855. hevc_nvenc_encoder_deps="nvenc"

  2856. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"

  2857. hevc_qsv_encoder_select="hevcparse qsvenc"

  2858. hevc_rkmpp_decoder_deps="rkmpp"

  2859. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2860. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2861. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2862. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2863. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2864. mjpeg_cuvid_decoder_deps="cuvid"

  2865. mjpeg_qsv_encoder_deps="libmfx"

  2866. mjpeg_qsv_encoder_select="qsvenc"

  2867. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2868. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2869. mpeg1_cuvid_decoder_deps="cuvid"

  2870. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2871. mpeg2_crystalhd_decoder_select="crystalhd"

  2872. mpeg2_cuvid_decoder_deps="cuvid"

  2873. mpeg2_mmal_decoder_deps="mmal"

  2874. mpeg2_mediacodec_decoder_deps="mediacodec"

  2875. mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"

  2876. mpeg2_qsv_encoder_select="qsvenc"

  2877. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2878. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2879. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2880. mpeg4_crystalhd_decoder_select="crystalhd"

  2881. mpeg4_cuvid_decoder_deps="cuvid"

  2882. mpeg4_mediacodec_decoder_deps="mediacodec"

  2883. mpeg4_mmal_decoder_deps="mmal"

  2884. mpeg4_omx_encoder_deps="omx"

  2885. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2886. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2887. msmpeg4_crystalhd_decoder_select="crystalhd"

  2888. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2889. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2890. vc1_crystalhd_decoder_select="crystalhd"

  2891. vc1_cuvid_decoder_deps="cuvid"

  2892. vc1_mmal_decoder_deps="mmal"

  2893. vc1_qsv_decoder_select="qsvdec vc1_parser"

  2894. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2895. vp8_cuvid_decoder_deps="cuvid"

  2896. vp8_mediacodec_decoder_deps="mediacodec"

  2897. vp8_qsv_decoder_select="qsvdec vp8_parser"

  2898. vp8_rkmpp_decoder_deps="rkmpp"

  2899. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2900. vp8_vaapi_encoder_select="vaapi_encode"

  2901. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2902. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2903. vp9_cuvid_decoder_deps="cuvid"

  2904. vp9_mediacodec_decoder_deps="mediacodec"

  2905. vp9_rkmpp_decoder_deps="rkmpp"

  2906. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2907. vp9_vaapi_encoder_select="vaapi_encode"

  2908. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2909. wmv3_crystalhd_decoder_select="crystalhd"

  2910. 

  2911. # parsers

  2912. aac_parser_select="adts_header"

  2913. h264_parser_select="golomb h264dsp h264parse"

  2914. hevc_parser_select="hevcparse"

  2915. mpegaudio_parser_select="mpegaudioheader"

  2916. mpegvideo_parser_select="mpegvideo"

  2917. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2918. vc1_parser_select="vc1dsp"

  2919. 

  2920. # bitstream_filters

  2921. aac_adtstoasc_bsf_select="adts_header"

  2922. filter_units_bsf_select="cbs"

  2923. h264_metadata_bsf_deps="const_nan"

  2924. h264_metadata_bsf_select="cbs_h264"

  2925. h264_redundant_pps_bsf_select="cbs_h264"

  2926. hevc_metadata_bsf_select="cbs_h265"

  2927. mjpeg2jpeg_bsf_select="jpegtables"

  2928. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2929. trace_headers_bsf_select="cbs"

  2930. 

  2931. # external libraries

  2932. aac_at_decoder_deps="audiotoolbox"

  2933. aac_at_decoder_select="aac_adtstoasc_bsf"

  2934. ac3_at_decoder_deps="audiotoolbox"

  2935. ac3_at_decoder_select="ac3_parser"

  2936. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2937. alac_at_decoder_deps="audiotoolbox"

  2938. amr_nb_at_decoder_deps="audiotoolbox"

  2939. avisynth_deps_any="libdl LoadLibrary"

  2940. avisynth_demuxer_deps="avisynth"

  2941. avisynth_demuxer_select="riffdec"

  2942. eac3_at_decoder_deps="audiotoolbox"

  2943. eac3_at_decoder_select="ac3_parser"

  2944. gsm_ms_at_decoder_deps="audiotoolbox"

  2945. ilbc_at_decoder_deps="audiotoolbox"

  2946. mp1_at_decoder_deps="audiotoolbox"

  2947. mp2_at_decoder_deps="audiotoolbox"

  2948. mp3_at_decoder_deps="audiotoolbox"

  2949. mp1_at_decoder_select="mpegaudioheader"

  2950. mp2_at_decoder_select="mpegaudioheader"

  2951. mp3_at_decoder_select="mpegaudioheader"

  2952. pcm_alaw_at_decoder_deps="audiotoolbox"

  2953. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2954. qdmc_at_decoder_deps="audiotoolbox"

  2955. qdm2_at_decoder_deps="audiotoolbox"

  2956. aac_at_encoder_deps="audiotoolbox"

  2957. aac_at_encoder_select="audio_frame_queue"

  2958. alac_at_encoder_deps="audiotoolbox"

  2959. alac_at_encoder_select="audio_frame_queue"

  2960. ilbc_at_encoder_deps="audiotoolbox"

  2961. ilbc_at_encoder_select="audio_frame_queue"

  2962. pcm_alaw_at_encoder_deps="audiotoolbox"

  2963. pcm_alaw_at_encoder_select="audio_frame_queue"

  2964. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2965. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2966. chromaprint_muxer_deps="chromaprint"

  2967. h264_videotoolbox_encoder_deps="pthreads"

  2968. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  2969. hevc_videotoolbox_encoder_deps="pthreads"

  2970. hevc_videotoolbox_encoder_select="videotoolbox_encoder"

  2971. libcelt_decoder_deps="libcelt"

  2972. libcodec2_decoder_deps="libcodec2"

  2973. libcodec2_encoder_deps="libcodec2"

  2974. libfdk_aac_decoder_deps="libfdk_aac"

  2975. libfdk_aac_encoder_deps="libfdk_aac"

  2976. libfdk_aac_encoder_select="audio_frame_queue"

  2977. libgme_demuxer_deps="libgme"

  2978. libgsm_decoder_deps="libgsm"

  2979. libgsm_encoder_deps="libgsm"

  2980. libgsm_ms_decoder_deps="libgsm"

  2981. libgsm_ms_encoder_deps="libgsm"

  2982. libilbc_decoder_deps="libilbc"

  2983. libilbc_encoder_deps="libilbc"

  2984. libkvazaar_encoder_deps="libkvazaar"

  2985. libmodplug_demuxer_deps="libmodplug"

  2986. libmp3lame_encoder_deps="libmp3lame"

  2987. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2988. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2989. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2990. libopencore_amrnb_encoder_select="audio_frame_queue"

  2991. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2992. libopenh264_decoder_deps="libopenh264"

  2993. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2994. libopenh264_encoder_deps="libopenh264"

  2995. libopenjpeg_decoder_deps="libopenjpeg"

  2996. libopenjpeg_encoder_deps="libopenjpeg"

  2997. libopenmpt_demuxer_deps="libopenmpt"

  2998. libopus_decoder_deps="libopus"

  2999. libopus_encoder_deps="libopus"

  3000. libopus_encoder_select="audio_frame_queue"

  3001. librsvg_decoder_deps="librsvg"

  3002. libshine_encoder_deps="libshine"

  3003. libshine_encoder_select="audio_frame_queue"

  3004. libspeex_decoder_deps="libspeex"

  3005. libspeex_encoder_deps="libspeex"

  3006. libspeex_encoder_select="audio_frame_queue"

  3007. libtheora_encoder_deps="libtheora"

  3008. libtwolame_encoder_deps="libtwolame"

  3009. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  3010. libvorbis_decoder_deps="libvorbis"

  3011. libvorbis_encoder_deps="libvorbis libvorbisenc"

  3012. libvorbis_encoder_select="audio_frame_queue"

  3013. libvpx_vp8_decoder_deps="libvpx"

  3014. libvpx_vp8_encoder_deps="libvpx"

  3015. libvpx_vp9_decoder_deps="libvpx"

  3016. libvpx_vp9_encoder_deps="libvpx"

  3017. libwavpack_encoder_deps="libwavpack"

  3018. libwavpack_encoder_select="audio_frame_queue"

  3019. libwebp_encoder_deps="libwebp"

  3020. libwebp_anim_encoder_deps="libwebp"

  3021. libx262_encoder_deps="libx262"

  3022. libx264_encoder_deps="libx264"

  3023. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  3024. libx264rgb_encoder_select="libx264_encoder"

  3025. libx265_encoder_deps="libx265"

  3026. libxavs_encoder_deps="libxavs"

  3027. libxvid_encoder_deps="libxvid"

  3028. libzvbi_teletext_decoder_deps="libzvbi"

  3029. videotoolbox_suggest="coreservices"

  3030. videotoolbox_deps="corefoundation coremedia corevideo"

  3031. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  3032. 

  3033. # demuxers / muxers

  3034. ac3_demuxer_select="ac3_parser"

  3035. aiff_muxer_select="iso_media"

  3036. asf_demuxer_select="riffdec"

  3037. asf_o_demuxer_select="riffdec"

  3038. asf_muxer_select="riffenc"

  3039. asf_stream_muxer_select="asf_muxer"

  3040. avi_demuxer_select="iso_media riffdec exif"

  3041. avi_muxer_select="riffenc"

  3042. caf_demuxer_select="iso_media riffdec"

  3043. caf_muxer_select="iso_media"

  3044. dash_muxer_select="mp4_muxer"

  3045. dash_demuxer_deps="libxml2"

  3046. dirac_demuxer_select="dirac_parser"

  3047. dts_demuxer_select="dca_parser"

  3048. dtshd_demuxer_select="dca_parser"

  3049. dv_demuxer_select="dvprofile"

  3050. dv_muxer_select="dvprofile"

  3051. dxa_demuxer_select="riffdec"

  3052. eac3_demuxer_select="ac3_parser"

  3053. f4v_muxer_select="mov_muxer"

  3054. fifo_muxer_deps="threads"

  3055. flac_demuxer_select="flac_parser"

  3056. hds_muxer_select="flv_muxer"

  3057. hls_muxer_select="mpegts_muxer"

  3058. hls_muxer_suggest="gcrypt openssl"

  3059. image2_alias_pix_demuxer_select="image2_demuxer"

  3060. image2_brender_pix_demuxer_select="image2_demuxer"

  3061. ipod_muxer_select="mov_muxer"

  3062. ismv_muxer_select="mov_muxer"

  3063. matroska_audio_muxer_select="matroska_muxer"

  3064. matroska_demuxer_select="iso_media riffdec"

  3065. matroska_demuxer_suggest="bzlib lzo zlib"

  3066. matroska_muxer_select="iso_media riffenc"

  3067. mmf_muxer_select="riffenc"

  3068. mov_demuxer_select="iso_media riffdec"

  3069. mov_demuxer_suggest="zlib"

  3070. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3071. mp3_demuxer_select="mpegaudio_parser"

  3072. mp3_muxer_select="mpegaudioheader"

  3073. mp4_muxer_select="mov_muxer"

  3074. mpegts_demuxer_select="iso_media"

  3075. mpegts_muxer_select="adts_muxer latm_muxer"

  3076. mpegtsraw_demuxer_select="mpegts_demuxer"

  3077. mxf_d10_muxer_select="mxf_muxer"

  3078. mxf_opatom_muxer_select="mxf_muxer"

  3079. nut_muxer_select="riffenc"

  3080. nuv_demuxer_select="riffdec"

  3081. oga_muxer_select="ogg_muxer"

  3082. ogg_demuxer_select="dirac_parse"

  3083. ogv_muxer_select="ogg_muxer"

  3084. opus_muxer_select="ogg_muxer"

  3085. psp_muxer_select="mov_muxer"

  3086. rtp_demuxer_select="sdp_demuxer"

  3087. rtp_muxer_select="golomb"

  3088. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3089. rtsp_demuxer_select="http_protocol rtpdec"

  3090. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3091. sap_demuxer_select="sdp_demuxer"

  3092. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3093. sdp_demuxer_select="rtpdec"

  3094. smoothstreaming_muxer_select="ismv_muxer"

  3095. spdif_demuxer_select="adts_header"

  3096. spdif_muxer_select="adts_header"

  3097. spx_muxer_select="ogg_muxer"

  3098. swf_demuxer_suggest="zlib"

  3099. tak_demuxer_select="tak_parser"

  3100. tg2_muxer_select="mov_muxer"

  3101. tgp_muxer_select="mov_muxer"

  3102. vobsub_demuxer_select="mpegps_demuxer"

  3103. w64_demuxer_select="wav_demuxer"

  3104. w64_muxer_select="wav_muxer"

  3105. wav_demuxer_select="riffdec"

  3106. wav_muxer_select="riffenc"

  3107. webm_muxer_select="iso_media riffenc"

  3108. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3109. wtv_demuxer_select="mpegts_demuxer riffdec"

  3110. wtv_muxer_select="mpegts_muxer riffenc"

  3111. xmv_demuxer_select="riffdec"

  3112. xwma_demuxer_select="riffdec"

  3113. 

  3114. # indevs / outdevs

  3115. android_camera_indev_deps="android camera2ndk mediandk pthreads"

  3116. android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"

  3117. alsa_indev_deps="alsa"

  3118. alsa_outdev_deps="alsa"

  3119. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3120. avfoundation_indev_suggest="coregraphics applicationservices"

  3121. avfoundation_indev_extralibs="-framework Foundation"

  3122. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3123. caca_outdev_deps="libcaca"

  3124. decklink_deps_any="libdl LoadLibrary"

  3125. decklink_indev_deps="decklink threads"

  3126. decklink_indev_extralibs="-lstdc++"

  3127. decklink_outdev_deps="decklink threads"

  3128. decklink_outdev_extralibs="-lstdc++"

  3129. libndi_newtek_indev_deps="libndi_newtek"

  3130. libndi_newtek_indev_extralibs="-lndi"

  3131. libndi_newtek_outdev_deps="libndi_newtek"

  3132. libndi_newtek_outdev_extralibs="-lndi"

  3133. dshow_indev_deps="IBaseFilter"

  3134. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3135. fbdev_indev_deps="linux_fb_h"

  3136. fbdev_outdev_deps="linux_fb_h"

  3137. gdigrab_indev_deps="CreateDIBSection"

  3138. gdigrab_indev_extralibs="-lgdi32"

  3139. gdigrab_indev_select="bmp_decoder"

  3140. iec61883_indev_deps="libiec61883"

  3141. jack_indev_deps="libjack"

  3142. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3143. kmsgrab_indev_deps="libdrm"

  3144. lavfi_indev_deps="avfilter"

  3145. libcdio_indev_deps="libcdio"

  3146. libdc1394_indev_deps="libdc1394"

  3147. openal_indev_deps="openal"

  3148. opengl_outdev_deps="opengl"

  3149. oss_indev_deps_any="sys_soundcard_h"

  3150. oss_outdev_deps_any="sys_soundcard_h"

  3151. pulse_indev_deps="libpulse"

  3152. pulse_outdev_deps="libpulse"

  3153. sdl2_outdev_deps="sdl2"

  3154. sndio_indev_deps="sndio"

  3155. sndio_outdev_deps="sndio"

  3156. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3157. v4l2_indev_suggest="libv4l2"

  3158. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3159. v4l2_outdev_suggest="libv4l2"

  3160. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3161. xcbgrab_indev_deps="libxcb"

  3162. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3163. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3164. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3165. 

  3166. # protocols

  3167. async_protocol_deps="threads"

  3168. bluray_protocol_deps="libbluray"

  3169. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3170. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3171. ffrtmpcrypt_protocol_select="tcp_protocol"

  3172. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3173. ffrtmphttp_protocol_select="http_protocol"

  3174. ftp_protocol_select="tcp_protocol"

  3175. gopher_protocol_select="network"

  3176. http_protocol_select="tcp_protocol"

  3177. http_protocol_suggest="zlib"

  3178. httpproxy_protocol_select="tcp_protocol"

  3179. httpproxy_protocol_suggest="zlib"

  3180. https_protocol_select="tls_protocol"

  3181. https_protocol_suggest="zlib"

  3182. icecast_protocol_select="http_protocol"

  3183. librtmp_protocol_deps="librtmp"

  3184. librtmpe_protocol_deps="librtmp"

  3185. librtmps_protocol_deps="librtmp"

  3186. librtmpt_protocol_deps="librtmp"

  3187. librtmpte_protocol_deps="librtmp"

  3188. libsmbclient_protocol_deps="libsmbclient gplv3"

  3189. libssh_protocol_deps="libssh"

  3190. libtls_conflict="openssl gnutls"

  3191. mmsh_protocol_select="http_protocol"

  3192. mmst_protocol_select="network"

  3193. rtmp_protocol_conflict="librtmp_protocol"

  3194. rtmp_protocol_select="tcp_protocol"

  3195. rtmp_protocol_suggest="zlib"

  3196. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3197. rtmpe_protocol_suggest="zlib"

  3198. rtmps_protocol_conflict="librtmp_protocol"

  3199. rtmps_protocol_select="tls_protocol"

  3200. rtmps_protocol_suggest="zlib"

  3201. rtmpt_protocol_select="ffrtmphttp_protocol"

  3202. rtmpt_protocol_suggest="zlib"

  3203. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3204. rtmpte_protocol_suggest="zlib"

  3205. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3206. rtmpts_protocol_suggest="zlib"

  3207. rtp_protocol_select="udp_protocol"

  3208. schannel_conflict="openssl gnutls libtls"

  3209. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3210. sctp_protocol_select="network"

  3211. securetransport_conflict="openssl gnutls libtls"

  3212. srtp_protocol_select="rtp_protocol srtp"

  3213. tcp_protocol_select="network"

  3214. tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"

  3215. tls_protocol_select="tcp_protocol"

  3216. udp_protocol_select="network"

  3217. udplite_protocol_select="network"

  3218. unix_protocol_deps="sys_un_h"

  3219. unix_protocol_select="network"

  3220. 

  3221. # filters

  3222. afftfilt_filter_deps="avcodec"

  3223. afftfilt_filter_select="fft"

  3224. afir_filter_deps="avcodec"

  3225. afir_filter_select="fft"

  3226. amovie_filter_deps="avcodec avformat"

  3227. aresample_filter_deps="swresample"

  3228. ass_filter_deps="libass"

  3229. atempo_filter_deps="avcodec"

  3230. atempo_filter_select="rdft"

  3231. avgblur_opencl_filter_deps="opencl"

  3232. azmq_filter_deps="libzmq"

  3233. blackframe_filter_deps="gpl"

  3234. boxblur_filter_deps="gpl"

  3235. bs2b_filter_deps="libbs2b"

  3236. colormatrix_filter_deps="gpl"

  3237. convolve_filter_deps="avcodec"

  3238. convolve_filter_select="fft"

  3239. coreimage_filter_deps="coreimage appkit"

  3240. coreimage_filter_extralibs="-framework OpenGL"

  3241. coreimagesrc_filter_deps="coreimage appkit"

  3242. coreimagesrc_filter_extralibs="-framework OpenGL"

  3243. cover_rect_filter_deps="avcodec avformat gpl"

  3244. cropdetect_filter_deps="gpl"

  3245. deconvolve_filter_deps="avcodec"

  3246. deconvolve_filter_select="fft"

  3247. deinterlace_qsv_filter_deps="libmfx"

  3248. deinterlace_vaapi_filter_deps="vaapi"

  3249. delogo_filter_deps="gpl"

  3250. denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3251. deshake_filter_select="pixelutils"

  3252. drawtext_filter_deps="libfreetype"

  3253. drawtext_filter_suggest="libfontconfig libfribidi"

  3254. elbg_filter_deps="avcodec"

  3255. eq_filter_deps="gpl"

  3256. fftfilt_filter_deps="avcodec"

  3257. fftfilt_filter_select="rdft"

  3258. find_rect_filter_deps="avcodec avformat gpl"

  3259. firequalizer_filter_deps="avcodec"

  3260. firequalizer_filter_select="rdft"

  3261. flite_filter_deps="libflite"

  3262. framerate_filter_select="pixelutils"

  3263. frei0r_filter_deps="frei0r libdl"

  3264. frei0r_src_filter_deps="frei0r libdl"

  3265. fspp_filter_deps="gpl"

  3266. geq_filter_deps="gpl"

  3267. histeq_filter_deps="gpl"

  3268. hqdn3d_filter_deps="gpl"

  3269. interlace_filter_deps="gpl"

  3270. kerndeint_filter_deps="gpl"

  3271. ladspa_filter_deps="ladspa libdl"

  3272. lv2_filter_deps="lv2"

  3273. mcdeint_filter_deps="avcodec gpl"

  3274. movie_filter_deps="avcodec avformat"

  3275. mpdecimate_filter_deps="gpl"

  3276. mpdecimate_filter_select="pixelutils"

  3277. mptestsrc_filter_deps="gpl"

  3278. negate_filter_deps="lut_filter"

  3279. nnedi_filter_deps="gpl"

  3280. ocr_filter_deps="libtesseract"

  3281. ocv_filter_deps="libopencv"

  3282. openclsrc_filter_deps="opencl"

  3283. overlay_opencl_filter_deps="opencl"

  3284. overlay_qsv_filter_deps="libmfx"

  3285. overlay_qsv_filter_select="qsvvpp"

  3286. owdenoise_filter_deps="gpl"

  3287. pan_filter_deps="swresample"

  3288. perspective_filter_deps="gpl"

  3289. phase_filter_deps="gpl"

  3290. pp7_filter_deps="gpl"

  3291. pp_filter_deps="gpl postproc"

  3292. procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3293. program_opencl_filter_deps="opencl"

  3294. pullup_filter_deps="gpl"

  3295. removelogo_filter_deps="avcodec avformat swscale"

  3296. repeatfields_filter_deps="gpl"

  3297. resample_filter_deps="avresample"

  3298. rubberband_filter_deps="librubberband"

  3299. sab_filter_deps="gpl swscale"

  3300. scale2ref_filter_deps="swscale"

  3301. scale_filter_deps="swscale"

  3302. scale_qsv_filter_deps="libmfx"

  3303. select_filter_select="pixelutils"

  3304. sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3305. showcqt_filter_deps="avcodec avformat swscale"

  3306. showcqt_filter_suggest="libfontconfig libfreetype"

  3307. showcqt_filter_select="fft"

  3308. showfreqs_filter_deps="avcodec"

  3309. showfreqs_filter_select="fft"

  3310. showspectrum_filter_deps="avcodec"

  3311. showspectrum_filter_select="fft"

  3312. showspectrumpic_filter_deps="avcodec"

  3313. showspectrumpic_filter_select="fft"

  3314. signature_filter_deps="gpl avcodec avformat"

  3315. smartblur_filter_deps="gpl swscale"

  3316. sofalizer_filter_deps="libmysofa avcodec"

  3317. sofalizer_filter_select="fft"

  3318. spectrumsynth_filter_deps="avcodec"

  3319. spectrumsynth_filter_select="fft"

  3320. spp_filter_deps="gpl avcodec"

  3321. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3322. stereo3d_filter_deps="gpl"

  3323. subtitles_filter_deps="avformat avcodec libass"

  3324. super2xsai_filter_deps="gpl"

  3325. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3326. tinterlace_filter_deps="gpl"

  3327. tinterlace_merge_test_deps="tinterlace_filter"

  3328. tinterlace_pad_test_deps="tinterlace_filter"

  3329. tonemap_filter_deps="const_nan"

  3330. unsharp_opencl_filter_deps="opencl"

  3331. uspp_filter_deps="gpl avcodec"

  3332. vaguedenoiser_filter_deps="gpl"

  3333. vidstabdetect_filter_deps="libvidstab"

  3334. vidstabtransform_filter_deps="libvidstab"

  3335. libvmaf_filter_deps="libvmaf pthreads"

  3336. zmq_filter_deps="libzmq"

  3337. zoompan_filter_deps="swscale"

  3338. zscale_filter_deps="libzimg const_nan"

  3339. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3340. vpp_qsv_filter_deps="libmfx"

  3341. vpp_qsv_filter_select="qsvvpp"

  3342. 

  3343. # examples

  3344. avio_dir_cmd_deps="avformat avutil"

  3345. avio_reading_deps="avformat avcodec avutil"

  3346. decode_audio_example_deps="avcodec avutil"

  3347. decode_video_example_deps="avcodec avutil"

  3348. demuxing_decoding_example_deps="avcodec avformat avutil"

  3349. encode_audio_example_deps="avcodec avutil"

  3350. encode_video_example_deps="avcodec avutil"

  3351. extract_mvs_example_deps="avcodec avformat avutil"

  3352. filter_audio_example_deps="avfilter avutil"

  3353. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3354. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3355. http_multiclient_example_deps="avformat avutil fork"

  3356. hw_decode_example_deps="avcodec avformat avutil"

  3357. metadata_example_deps="avformat avutil"

  3358. muxing_example_deps="avcodec avformat avutil swscale"

  3359. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3360. remuxing_example_deps="avcodec avformat avutil"

  3361. resampling_audio_example_deps="avutil swresample"

  3362. scaling_video_example_deps="avutil swscale"

  3363. transcode_aac_example_deps="avcodec avformat swresample"

  3364. transcoding_example_deps="avfilter avcodec avformat avutil"

  3365. vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"

  3366. vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"

  3367. 

  3368. # EXTRALIBS_LIST

  3369. cpu_init_extralibs="pthreads_extralibs"

  3370. cws2fws_extralibs="zlib_extralibs"

  3371. 

  3372. # libraries, in linking order

  3373. avcodec_deps="avutil"

  3374. avcodec_suggest="libm"

  3375. avcodec_select="null_bsf"

  3376. avdevice_deps="avformat avcodec avutil"

  3377. avdevice_suggest="libm"

  3378. avfilter_deps="avutil"

  3379. avfilter_suggest="libm"

  3380. avformat_deps="avcodec avutil"

  3381. avformat_suggest="libm network zlib"

  3382. avresample_deps="avutil"

  3383. avresample_suggest="libm"

  3384. avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3385. postproc_deps="avutil gpl"

  3386. postproc_suggest="libm"

  3387. swresample_deps="avutil"

  3388. swresample_suggest="libm libsoxr"

  3389. swscale_deps="avutil"

  3390. swscale_suggest="libm"

  3391. 

  3392. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3393. avfilter_extralibs="pthreads_extralibs"

  3394. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3395. 

  3396. # programs

  3397. ffmpeg_deps="avcodec avfilter avformat swresample"

  3398. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3399.                null_filter

  3400.                trim_filter"

  3401. ffmpeg_suggest="ole32 psapi shell32"

  3402. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3403. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3404. ffplay_suggest="shell32"

  3405. ffprobe_deps="avcodec avformat"

  3406. ffprobe_suggest="shell32"

  3407. 

  3408. # documentation

  3409. podpages_deps="perl"

  3410. manpages_deps="perl pod2man"

  3411. htmlpages_deps="perl"

  3412. htmlpages_deps_any="makeinfo_html texi2html"

  3413. txtpages_deps="perl makeinfo"

  3414. doc_deps_any="manpages htmlpages podpages txtpages"

  3415. 

  3416. # default parameters

  3417. 

  3418. logfile="ffbuild/config.log"

  3419. 

  3420. # installation paths

  3421. prefix_default="/usr/local"

  3422. bindir_default='${prefix}/bin'

  3423. datadir_default='${prefix}/share/ffmpeg'

  3424. docdir_default='${prefix}/share/doc/ffmpeg'

  3425. incdir_default='${prefix}/include'

  3426. libdir_default='${prefix}/lib'

  3427. mandir_default='${prefix}/share/man'

  3428. 

  3429. # toolchain

  3430. ar_default="ar"

  3431. cc_default="gcc"

  3432. cxx_default="g++"

  3433. host_cc_default="gcc"

  3434. doxygen_default="doxygen"

  3435. install="install"

  3436. ln_s_default="ln -s -f"

  3437. nm_default="nm -g"

  3438. pkg_config_default=pkg-config

  3439. ranlib_default="ranlib"

  3440. strip_default="strip"

  3441. version_script='--version-script'

  3442. objformat="elf32"

  3443. x86asmexe_default="nasm"

  3444. windres_default="windres"

  3445. nvcc_default="nvcc"

  3446. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3447. striptype="direct"

  3448. 

  3449. # OS

  3450. target_os_default=$(tolower $(uname -s))

  3451. host_os=$target_os_default

  3452. 

  3453. # machine

  3454. if test "$target_os_default" = aix; then

  3455.     arch_default=$(uname -p)

  3456.     strip_default="strip -X32_64"

  3457. else

  3458.     arch_default=$(uname -m)

  3459. fi

  3460. cpu="generic"

  3461. intrinsics="none"

  3462. 

  3463. # configurable options

  3464. enable $PROGRAM_LIST

  3465. enable $DOCUMENT_LIST

  3466. enable $EXAMPLE_LIST

  3467. enable $(filter_out avresample $LIBRARY_LIST)

  3468. enable stripping

  3469. 

  3470. enable asm

  3471. enable debug

  3472. enable doc

  3473. enable faan faandct faanidct

  3474. enable optimizations

  3475. enable runtime_cpudetect

  3476. enable safe_bitstream_reader

  3477. enable static

  3478. enable swscale_alpha

  3479. enable valgrind_backtrace

  3480. 

  3481. sws_max_filter_size_default=256

  3482. set_default sws_max_filter_size

  3483. 

  3484. # internal components are enabled by default

  3485. enable $EXTRALIBS_LIST

  3486. 

  3487. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3488. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3489. 

  3490. # build settings

  3491. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3492. LIBPREF="lib"

  3493. LIBSUF=".a"

  3494. FULLNAME='$(NAME)$(BUILDSUF)'

  3495. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3496. SLIBPREF="lib"

  3497. SLIBSUF=".so"

  3498. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3499. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3500. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3501. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3502. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3503. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3504. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3505. 

  3506. asflags_filter=echo

  3507. cflags_filter=echo

  3508. ldflags_filter=echo

  3509. 

  3510. AS_C='-c'

  3511. AS_O='-o $@'

  3512. CC_C='-c'

  3513. CC_E='-E -o $@'

  3514. CC_O='-o $@'

  3515. CXX_C='-c'

  3516. CXX_O='-o $@'

  3517. OBJCC_C='-c'

  3518. OBJCC_E='-E -o $@'

  3519. OBJCC_O='-o $@'

  3520. X86ASM_O='-o $@'

  3521. LD_O='-o $@'

  3522. LD_LIB='-l%'

  3523. LD_PATH='-L'

  3524. HOSTCC_C='-c'

  3525. HOSTCC_E='-E -o $@'

  3526. HOSTCC_O='-o $@'

  3527. HOSTLD_O='-o $@'

  3528. NVCC_C='-c'

  3529. NVCC_O='-o $@'

  3530. 

  3531. host_extralibs='-lm'

  3532. host_cflags_filter=echo

  3533. host_ldflags_filter=echo

  3534. 

  3535. target_path='$(CURDIR)'

  3536. 

  3537. # since the object filename is not given with the -MM flag, the compiler

  3538. # is only able to print the basename, and we must add the path ourselves

  3539. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3540. DEPFLAGS='-MM'

  3541. 

  3542. mkdir -p ffbuild

  3543. 

  3544. # find source path

  3545. if test -f configure; then

  3546.     source_path=.

  3547. else

  3548.     source_path=$(cd $(dirname "$0"); pwd)

  3549.     case "$source_path" in

  3550.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3551.     esac

  3552.     test -e "$source_path/config.h" &&

  3553.         die "Out of tree builds are impossible with config.h in source dir."

  3554. fi

  3555. 

  3556. for v in "$@"; do

  3557.     r=${v#*=}

  3558.     l=${v%"$r"}

  3559.     r=$(sh_quote "$r")

  3560.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3561. done

  3562. 

  3563. find_things(){

  3564.     thing=$1

  3565.     pattern=$2

  3566.     file=$source_path/$3

  3567.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3568. }

  3569. 

  3570. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3571. 

  3572. find_things_extern(){

  3573.     thing=$1

  3574.     pattern=$2

  3575.     file=$source_path/$3

  3576.     out=${4:-$thing}

  3577.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"

  3578. }

  3579. 

  3580. OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)

  3581. INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)

  3582. MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)

  3583. DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)

  3584. ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)

  3585. DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)

  3586. CODEC_LIST="

  3587.     $ENCODER_LIST

  3588.     $DECODER_LIST

  3589. "

  3590. PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)

  3591. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3592. HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)

  3593. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3594. 

  3595. AVCODEC_COMPONENTS_LIST="

  3596.     $BSF_LIST

  3597.     $DECODER_LIST

  3598.     $ENCODER_LIST

  3599.     $HWACCEL_LIST

  3600.     $PARSER_LIST

  3601. "

  3602. 

  3603. AVDEVICE_COMPONENTS_LIST="

  3604.     $INDEV_LIST

  3605.     $OUTDEV_LIST

  3606. "

  3607. 

  3608. AVFILTER_COMPONENTS_LIST="

  3609.     $FILTER_LIST

  3610. "

  3611. 

  3612. AVFORMAT_COMPONENTS_LIST="

  3613.     $DEMUXER_LIST

  3614.     $MUXER_LIST

  3615.     $PROTOCOL_LIST

  3616. "

  3617. 

  3618. ALL_COMPONENTS="

  3619.     $AVCODEC_COMPONENTS_LIST

  3620.     $AVDEVICE_COMPONENTS_LIST

  3621.     $AVFILTER_COMPONENTS_LIST

  3622.     $AVFORMAT_COMPONENTS_LIST

  3623. "

  3624. 

  3625. for n in $COMPONENT_LIST; do

  3626.     v=$(toupper ${n%s})_LIST

  3627.     eval enable \$$v

  3628.     eval ${n}_if_any="\$$v"

  3629. done

  3630. 

  3631. enable $ARCH_EXT_LIST

  3632. 

  3633. die_unknown(){

  3634.     echo "Unknown option \"$1\"."

  3635.     echo "See $0 --help for available options."

  3636.     exit 1

  3637. }

  3638. 

  3639. print_in_columns() {

  3640.     cols=$(expr $ncols / 24)

  3641.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3642. }

  3643. 

  3644. show_list() {

  3645.     suffix=_$1

  3646.     shift

  3647.     echo $* | sed s/$suffix//g | print_in_columns

  3648.     exit 0

  3649. }

  3650. 

  3651. rand_list(){

  3652.     IFS=', '

  3653.     set -- $*

  3654.     unset IFS

  3655.     for thing; do

  3656.         comp=${thing%:*}

  3657.         prob=${thing#$comp}

  3658.         prob=${prob#:}

  3659.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3660.         echo "prob ${prob:-0.5}"

  3661.         printf '%s\n' $comp

  3662.     done

  3663. }

  3664. 

  3665. do_random(){

  3666.     action=$1

  3667.     shift

  3668.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3669.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3670. }

  3671. 

  3672. for opt do

  3673.     optval="${opt#*=}"

  3674.     case "$opt" in

  3675.         --extra-ldflags=*)

  3676.             add_ldflags $optval

  3677.         ;;

  3678.         --extra-ldexeflags=*)

  3679.             add_ldexeflags $optval

  3680.         ;;

  3681.         --extra-ldsoflags=*)

  3682.             add_ldsoflags $optval

  3683.         ;;

  3684.         --extra-ldlibflags=*)

  3685.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3686.                  "removed in the future. Use --extra-ldsoflags instead."

  3687.             add_ldsoflags $optval

  3688.         ;;

  3689.         --extra-libs=*)

  3690.             add_extralibs $optval

  3691.         ;;

  3692.         --disable-devices)

  3693.             disable $INDEV_LIST $OUTDEV_LIST

  3694.         ;;

  3695.         --enable-debug=*)

  3696.             debuglevel="$optval"

  3697.         ;;

  3698.         --disable-programs)

  3699.             disable $PROGRAM_LIST

  3700.         ;;

  3701.         --disable-everything)

  3702.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3703.         ;;

  3704.         --disable-all)

  3705.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3706.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3707.             enable avutil

  3708.         ;;

  3709.         --enable-random|--disable-random)

  3710.             action=${opt%%-random}

  3711.             do_random ${action#--} $COMPONENT_LIST

  3712.         ;;

  3713.         --enable-random=*|--disable-random=*)

  3714.             action=${opt%%-random=*}

  3715.             do_random ${action#--} $optval

  3716.         ;;

  3717.         --enable-sdl)

  3718.             enable sdl2

  3719.         ;;

  3720.         --enable-*=*|--disable-*=*)

  3721.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3722.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3723.             eval list=\$$(toupper $thing)_LIST

  3724.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3725.             list=$(filter "$name" $list)

  3726.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3727.             $action $list

  3728.         ;;

  3729.         --enable-yasm|--disable-yasm)

  3730.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3731.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3732.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3733.         ;;

  3734.         --yasmexe=*)

  3735.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3736.                  "removed in the future. Use --x86asmexe instead."

  3737.             x86asmexe="$optval"

  3738.         ;;

  3739.         --enable-?*|--disable-?*)

  3740.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3741.             if is_in $option $COMPONENT_LIST; then

  3742.                 test $action = disable && action=unset

  3743.                 eval $action \$$(toupper ${option%s})_LIST

  3744.             elif is_in $option $CMDLINE_SELECT; then

  3745.                 $action $option

  3746.             else

  3747.                 die_unknown $opt

  3748.             fi

  3749.         ;;

  3750.         --list-*)

  3751.             NAME="${opt#--list-}"

  3752.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3753.             NAME=${NAME%s}

  3754.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3755.         ;;

  3756.         --help|-h) show_help

  3757.         ;;

  3758.         --quiet|-q) quiet=yes

  3759.         ;;

  3760.         --fatal-warnings) enable fatal_warnings

  3761.         ;;

  3762.         --libfuzzer=*)

  3763.             libfuzzer_path="$optval"

  3764.         ;;

  3765.         *)

  3766.             optname="${opt%%=*}"

  3767.             optname="${optname#--}"

  3768.             optname=$(echo "$optname" | sed 's/-/_/g')

  3769.             if is_in $optname $CMDLINE_SET; then

  3770.                 eval $optname='$optval'

  3771.             elif is_in $optname $CMDLINE_APPEND; then

  3772.                 append $optname "$optval"

  3773.             else

  3774.                 die_unknown $opt

  3775.             fi

  3776.         ;;

  3777.     esac

  3778. done

  3779. 

  3780. for e in $env; do

  3781.     eval "export $e"

  3782. done

  3783. 

  3784. if disabled autodetect; then

  3785. 

  3786.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3787.     # for the iconv from the libc.

  3788.     disabled iconv || enable libc_iconv

  3789. 

  3790.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3791.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3792. fi

  3793. # Mark specifically enabled, but normally autodetected libraries as requested.

  3794. for lib in $AUTODETECT_LIBS; do

  3795.     enabled $lib && request $lib

  3796. done

  3797. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3798. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3799. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3800. 

  3801. disabled logging && logfile=/dev/null

  3802. 

  3803. # command line configuration sanity checks

  3804. 

  3805. # we need to build at least one lib type

  3806. if ! enabled_any static shared; then

  3807.     cat <<EOF

  3808. At least one library type must be built.

  3809. Specify --enable-static to build the static libraries or --enable-shared to

  3810. build the shared libraries as well. To only build the shared libraries specify

  3811. --disable-static in addition to --enable-shared.

  3812. EOF

  3813.     exit 1

  3814. fi

  3815. 

  3816. die_license_disabled() {

  3817.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3818. }

  3819. 

  3820. die_license_disabled_gpl() {

  3821.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3822. }

  3823. 

  3824. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3825. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3826. 

  3827. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3828. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3829. 

  3830. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3831. 

  3832. if enabled nonfree; then

  3833.     license="nonfree and unredistributable"

  3834. elif enabled gplv3; then

  3835.     license="GPL version 3 or later"

  3836. elif enabled lgplv3; then

  3837.     license="LGPL version 3 or later"

  3838. elif enabled gpl; then

  3839.     license="GPL version 2 or later"

  3840. else

  3841.     license="LGPL version 2.1 or later"

  3842. fi

  3843. 

  3844. enabled_all gnutls openssl &&

  3845.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3846. 

  3847. # Disable all the library-specific components if the library itself

  3848. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3849. 

  3850. disable_components(){

  3851.     disabled ${1} && disable $(

  3852.         eval components="\$$(toupper ${1})_COMPONENTS"

  3853.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3854.     )

  3855. }

  3856. 

  3857. map 'disable_components $v' $LIBRARY_LIST

  3858. 

  3859. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3860. set >> $logfile

  3861. 

  3862. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3863. 

  3864. enabled ossfuzz && {

  3865.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3866.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3867. }

  3868. 

  3869. case "$toolchain" in

  3870.     *-asan)

  3871.         cc_default="${toolchain%-asan}"

  3872.         add_cflags  -fsanitize=address

  3873.         add_ldflags -fsanitize=address

  3874.     ;;

  3875.     *-msan)

  3876.         cc_default="${toolchain%-msan}"

  3877.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3878.         add_ldflags -fsanitize=memory

  3879.     ;;

  3880.     *-tsan)

  3881.         cc_default="${toolchain%-tsan}"

  3882.         add_cflags  -fsanitize=thread -fPIE

  3883.         add_ldflags -fsanitize=thread -pie

  3884.         case "$toolchain" in

  3885.             gcc-tsan)

  3886.                 add_cflags  -fPIC

  3887.                 add_ldflags -fPIC

  3888.                 ;;

  3889.         esac

  3890.     ;;

  3891.     *-usan)

  3892.         cc_default="${toolchain%-usan}"

  3893.         add_cflags  -fsanitize=undefined

  3894.         add_ldflags -fsanitize=undefined

  3895.     ;;

  3896.     valgrind-*)

  3897.         target_exec_default="valgrind"

  3898.         case "$toolchain" in

  3899.             valgrind-massif)

  3900.                 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"

  3901.                 ;;

  3902.             valgrind-memcheck)

  3903.                 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"

  3904.                 ;;

  3905.         esac

  3906.     ;;

  3907.     msvc)

  3908.         # Check whether the current MSVC version needs the C99 converter.

  3909.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3910.         # support enough of C99 to build ffmpeg. Default to the new

  3911.         # behaviour if the regexp was unable to match anything, since this

  3912.         # successfully parses the version number of existing supported

  3913.         # versions that require the converter (MSVC 2010 and 2012).

  3914.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3915.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3916.             cc_default="cl"

  3917.             cxx_default="cl"

  3918.         else

  3919.             cc_default="c99wrap cl"

  3920.             cxx_default="c99wrap cl"

  3921.         fi

  3922.         ld_default="$source_path/compat/windows/mslink"

  3923.         nm_default="dumpbin -symbols"

  3924.         ar_default="lib"

  3925.         case "$arch" in

  3926.         aarch64|arm64)

  3927.             as_default="armasm64"

  3928.             ;;

  3929.         arm*)

  3930.             as_default="armasm"

  3931.             ;;

  3932.         esac

  3933.         target_os_default="win32"

  3934.         # Use a relative path for TMPDIR. This makes sure all the

  3935.         # ffconf temp files are written with a relative path, avoiding

  3936.         # issues with msys/win32 path conversion for MSVC parameters

  3937.         # such as -Fo<file> or -out:<file>.

  3938.         TMPDIR=.

  3939.     ;;

  3940.     icl)

  3941.         cc_default="icl"

  3942.         ld_default="xilink"

  3943.         nm_default="dumpbin -symbols"

  3944.         ar_default="xilib"

  3945.         target_os_default="win32"

  3946.         TMPDIR=.

  3947.     ;;

  3948.     gcov)

  3949.         add_cflags  -fprofile-arcs -ftest-coverage

  3950.         add_ldflags -fprofile-arcs -ftest-coverage

  3951.     ;;

  3952.     llvm-cov)

  3953.         add_cflags -fprofile-arcs -ftest-coverage

  3954.         add_ldflags --coverage

  3955.     ;;

  3956.     hardened)

  3957.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3958.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3959.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3960.         add_cflags   -fPIE

  3961.         add_ldexeflags -fPIE -pie

  3962.     ;;

  3963.     ?*)

  3964.         die "Unknown toolchain $toolchain"

  3965.     ;;

  3966. esac

  3967. 

  3968. if test -n "$cross_prefix"; then

  3969.     test -n "$arch" && test -n "$target_os" ||

  3970.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3971.     enable cross_compile

  3972. fi

  3973. 

  3974. ar_default="${cross_prefix}${ar_default}"

  3975. cc_default="${cross_prefix}${cc_default}"

  3976. cxx_default="${cross_prefix}${cxx_default}"

  3977. nm_default="${cross_prefix}${nm_default}"

  3978. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3979. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3980.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3981. else

  3982.     ranlib_default="${cross_prefix}${ranlib_default}"

  3983. fi

  3984. strip_default="${cross_prefix}${strip_default}"

  3985. windres_default="${cross_prefix}${windres_default}"

  3986. 

  3987. sysinclude_default="${sysroot}/usr/include"

  3988. 

  3989. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3990.     target_exec target_os x86asmexe nvcc

  3991. enabled cross_compile || host_cc_default=$cc

  3992. set_default host_cc

  3993. 

  3994. pkg_config_fail_message=""

  3995. if ! $pkg_config --version >/dev/null 2>&1; then

  3996.     warn "$pkg_config not found, library detection may fail."

  3997.     pkg_config=false

  3998. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3999.     pkg_config_fail_message="

  4000. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  4001. fi

  4002. 

  4003. if test $doxygen != $doxygen_default && \

  4004.   ! $doxygen --version >/dev/null 2>&1; then

  4005.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  4006. fi

  4007. 

  4008. exesuf() {

  4009.     case $1 in

  4010.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  4011.     esac

  4012. }

  4013. 

  4014. EXESUF=$(exesuf $target_os)

  4015. HOSTEXESUF=$(exesuf $host_os)

  4016. 

  4017. # set temporary file name

  4018. : ${TMPDIR:=$TEMPDIR}

  4019. : ${TMPDIR:=$TMP}

  4020. : ${TMPDIR:=/tmp}

  4021. 

  4022. if [ -n "$tempprefix" ] ; then

  4023.     mktemp(){

  4024.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  4025.         echo "$tmpname"

  4026.         mkdir "$tmpname"

  4027.     }

  4028. elif ! test_cmd mktemp -u XXXXXX; then

  4029.     # simple replacement for missing mktemp

  4030.     # NOT SAFE FOR GENERAL USE

  4031.     mktemp(){

  4032.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  4033.         echo "$tmpname"

  4034.         mkdir "$tmpname"

  4035.     }

  4036. fi

  4037. 

  4038. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  4039.     die "Unable to create temporary directory in $TMPDIR."

  4040. 

  4041. tmpfile(){

  4042.     tmp="${FFTMPDIR}/test"$2

  4043.     (set -C; exec > $tmp) 2> /dev/null ||

  4044.         die "Unable to create temporary file in $FFTMPDIR."

  4045.     eval $1=$tmp

  4046. }

  4047. 

  4048. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  4049. trap 'exit 2' INT

  4050. 

  4051. tmpfile TMPASM .asm

  4052. tmpfile TMPC   .c

  4053. tmpfile TMPCPP .cpp

  4054. tmpfile TMPE   $EXESUF

  4055. tmpfile TMPH   .h

  4056. tmpfile TMPM   .m

  4057. tmpfile TMPO   .o

  4058. tmpfile TMPS   .S

  4059. tmpfile TMPSH  .sh

  4060. tmpfile TMPV   .ver

  4061. 

  4062. unset -f mktemp

  4063. 

  4064. chmod +x $TMPE

  4065. 

  4066. # make sure we can execute files in $TMPDIR

  4067. cat > $TMPSH 2>> $logfile <<EOF

  4068. #! /bin/sh

  4069. EOF

  4070. chmod +x $TMPSH >> $logfile 2>&1

  4071. if ! $TMPSH >> $logfile 2>&1; then

  4072.     cat <<EOF

  4073. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4074. variable to another directory and make sure that it is not mounted noexec.

  4075. EOF

  4076.     die "Sanity test failed."

  4077. fi

  4078. 

  4079. armasm_flags(){

  4080.     for flag; do

  4081.         case $flag in

  4082.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4083.             # be passed to gas-preprocessor

  4084.             -M[TD]*)                                            ;;

  4085.             *)                  echo $flag                      ;;

  4086.         esac

  4087.    done

  4088. }

  4089. 

  4090. cparser_flags(){

  4091.     for flag; do

  4092.         case $flag in

  4093.             -Wno-switch)             echo -Wno-switch-enum ;;

  4094.             -Wno-format-zero-length) ;;

  4095.             -Wdisabled-optimization) ;;

  4096.             -Wno-pointer-sign)       echo -Wno-other ;;

  4097.             *)                       echo $flag ;;

  4098.         esac

  4099.     done

  4100. }

  4101. 

  4102. msvc_common_flags(){

  4103.     for flag; do

  4104.         case $flag in

  4105.             # In addition to specifying certain flags under the compiler

  4106.             # specific filters, they must be specified here as well or else the

  4107.             # generic catch all at the bottom will print the original flag.

  4108.             -Wall)                ;;

  4109.             -Wextra)              ;;

  4110.             -std=c99)             ;;

  4111.             # Common flags

  4112.             -fomit-frame-pointer) ;;

  4113.             -g)                   echo -Z7 ;;

  4114.             -fno-math-errno)      ;;

  4115.             -fno-common)          ;;

  4116.             -fno-signed-zeros)    ;;

  4117.             -fPIC)                ;;

  4118.             -mthumb)              ;;

  4119.             -march=*)             ;;

  4120.             -lz)                  echo zlib.lib ;;

  4121.             -lx264)               echo libx264.lib ;;

  4122.             -lstdc++)             ;;

  4123.             -l*)                  echo ${flag#-l}.lib ;;

  4124.             -LARGEADDRESSAWARE)   echo $flag ;;

  4125.             -L*)                  echo -libpath:${flag#-L} ;;

  4126.             *)                    echo $flag ;;

  4127.         esac

  4128.     done

  4129. }

  4130. 

  4131. msvc_flags(){

  4132.     msvc_common_flags "$@"

  4133.     for flag; do

  4134.         case $flag in

  4135.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4136.                                        -wd4554 ;;

  4137.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4138.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4139.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4140.                                        -wd4307 \

  4141.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4142.         esac

  4143.     done

  4144. }

  4145. 

  4146. icl_flags(){

  4147.     msvc_common_flags "$@"

  4148.     for flag; do

  4149.         case $flag in

  4150.             # Despite what Intel's documentation says -Wall, which is supported

  4151.             # on Windows, does enable remarks so disable them here.

  4152.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4153.             -std=c99)             echo -Qstd=c99 ;;

  4154.             -flto)                echo -ipo ;;

  4155.         esac

  4156.     done

  4157. }

  4158. 

  4159. icc_flags(){

  4160.     for flag; do

  4161.         case $flag in

  4162.             -flto)                echo -ipo ;;

  4163.             *)                    echo $flag ;;

  4164.         esac

  4165.     done

  4166. }

  4167. 

  4168. suncc_flags(){

  4169.     for flag; do

  4170.         case $flag in

  4171.             -march=*|-mcpu=*)

  4172.                 case "${flag#*=}" in

  4173.                     native)                   echo -xtarget=native       ;;

  4174.                     v9|niagara)               echo -xarch=sparc          ;;

  4175.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4176.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4177.                     i586|pentium)             echo -xchip=pentium        ;;

  4178.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4179.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4180.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4181.                     pentium4*)          echo -xtarget=pentium4           ;;

  4182.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4183.                     *-sse3)             echo -xarch=sse3                 ;;

  4184.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4185.                     bonnell)                   echo -xarch=ssse3         ;;

  4186.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4187.                     westmere)                  echo -xtarget=westmere    ;;

  4188.                     silvermont)                echo -xarch=sse4_2        ;;

  4189.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4190.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4191.                                                echo -xarch=avx           ;;

  4192.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4193.                     btver1)                    echo -xarch=amdsse4a      ;;

  4194.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4195.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4196.                     k8|opteron|athlon64|athlon-fx)

  4197.                                                echo -xarch=sse2a         ;;

  4198.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4199.                 esac

  4200.                 ;;

  4201.             -std=c99)             echo -xc99              ;;

  4202.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4203.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4204.             -W*,*)                echo $flag              ;;

  4205.             -f*-*|-W*|-mimpure-text)                      ;;

  4206.             -shared)              echo -G                 ;;

  4207.             *)                    echo $flag              ;;

  4208.         esac

  4209.     done

  4210. }

  4211. 

  4212. probe_cc(){

  4213.     pfx=$1

  4214.     _cc=$2

  4215.     first=$3

  4216. 

  4217.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4218.     unset _ld_o _ldflags _ld_lib _ld_path

  4219.     unset _depflags _DEPCMD _DEPFLAGS

  4220.     _flags_filter=echo

  4221. 

  4222.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4223.         true # no-op to avoid reading stdin in following checks

  4224.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4225.         _type=llvm_gcc

  4226.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4227.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4228.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4229.         _cflags_speed='-O3'

  4230.         _cflags_size='-Os'

  4231.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4232.         _type=gcc

  4233.         gcc_version=$($_cc --version | head -n1)

  4234.         gcc_basever=$($_cc -dumpversion)

  4235.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4236.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4237.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4238.         case $gcc_basever in

  4239.             2) ;;

  4240.             2.*) ;;

  4241.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4242.         esac

  4243.         if [ "$first" = true ]; then

  4244.             case $gcc_basever in

  4245.                 4.2*)

  4246.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4247.             esac

  4248.         fi

  4249.         _cflags_speed='-O3'

  4250.         _cflags_size='-Os'

  4251.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4252.         _type=icc

  4253.         _ident=$($_cc --version | head -n1)

  4254.         _depflags='-MMD'

  4255.         _cflags_speed='-O3'

  4256.         _cflags_size='-Os'

  4257.         _cflags_noopt='-O1'

  4258.         _flags_filter=icc_flags

  4259.     elif $_cc -v 2>&1 | grep -q xlc; then

  4260.         _type=xlc

  4261.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4262.         _cflags_speed='-O5'

  4263.         _cflags_size='-O5 -qcompact'

  4264.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4265.         test -d "$sysroot" || die "No valid sysroot specified."

  4266.         _type=armcc

  4267.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4268.         armcc_conf="$PWD/armcc.conf"

  4269.         $_cc --arm_linux_configure                 \

  4270.              --arm_linux_config_file="$armcc_conf" \

  4271.              --configure_sysroot="$sysroot"        \

  4272.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4273.              die "Error creating armcc configuration file."

  4274.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4275.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4276.         as_default="${cross_prefix}gcc"

  4277.         _depflags='-MMD'

  4278.         _cflags_speed='-O3'

  4279.         _cflags_size='-Os'

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

  4281.         _type=clang

  4282.         _ident=$($_cc --version 2>/dev/null | head -n1)

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

  4284.         _cflags_speed='-O3'

  4285.         _cflags_size='-Oz'

  4286.     elif $_cc -V 2>&1 | grep -q Sun; then

  4287.         _type=suncc

  4288.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4289.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4290.         _DEPFLAGS='-xM1 -xc99'

  4291.         _ldflags='-std=c99'

  4292.         _cflags_speed='-O5'

  4293.         _cflags_size='-O5 -xspace'

  4294.         _flags_filter=suncc_flags

  4295.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4296.         _type=pathscale

  4297.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4298.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4299.         _cflags_speed='-O2'

  4300.         _cflags_size='-Os'

  4301.         _flags_filter='filter_out -Wdisabled-optimization'

  4302.     elif $_cc -v 2>&1 | grep -q Open64; then

  4303.         _type=open64

  4304.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4305.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4306.         _cflags_speed='-O2'

  4307.         _cflags_size='-Os'

  4308.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4309.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4310.         _type=armasm

  4311.         _ident=$($_cc | head -n1)

  4312.         # 4509: "This form of conditional instruction is deprecated"

  4313.         _flags="-nologo -ignore 4509"

  4314.         _flags_filter=armasm_flags

  4315.     elif $_cc 2>&1 | grep -q Intel; then

  4316.         _type=icl

  4317.         _ident=$($_cc 2>&1 | head -n1)

  4318.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4319.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4320.         # versions (tested) as well.

  4321.         _cflags_speed="-O2"

  4322.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4323.         if $_cc 2>&1 | grep -q Linker; then

  4324.             _ld_o='-out:$@'

  4325.         else

  4326.             _ld_o='-Fe$@'

  4327.         fi

  4328.         _cc_o='-Fo$@'

  4329.         _cc_e='-P'

  4330.         _flags_filter=icl_flags

  4331.         _ld_lib='lib%.a'

  4332.         _ld_path='-libpath:'

  4333.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4334.         _flags='-nologo -Qdiag-error:4044,10157'

  4335.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4336.         # with MSVC which enables it by default.

  4337.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4338.         disable stripping

  4339.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4340.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4341.         # the -? parameter gives the help output which contains an identifyable

  4342.         # string, while it gives an error in other modes.

  4343.         _type=lld-link

  4344.         # The link.exe mode doesn't have a switch for getting the version,

  4345.         # but we can force it back to gnu mode and get the version from there.

  4346.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4347.         _ld_o='-out:$@'

  4348.         _flags_filter=msvc_flags

  4349.         _ld_lib='lib%.a'

  4350.         _ld_path='-libpath:'

  4351.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4352.         _type=msvc

  4353.         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')

  4354.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4355.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4356.         _cflags_speed="-O2"

  4357.         _cflags_size="-O1"

  4358.         _cflags_noopt="-O1"

  4359.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4360.             _ld_o='-out:$@'

  4361.         else

  4362.             _ld_o='-Fe$@'

  4363.         fi

  4364.         _cc_o='-Fo$@'

  4365.         _cc_e='-P -Fi$@'

  4366.         _flags_filter=msvc_flags

  4367.         _ld_lib='lib%.a'

  4368.         _ld_path='-libpath:'

  4369.         _flags='-nologo'

  4370.         disable stripping

  4371.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4372.         _type=cparser

  4373.         _ident=$($_cc --version | head -n1)

  4374.         _depflags='-MMD'

  4375.         _cflags_speed='-O4'

  4376.         _cflags_size='-O2'

  4377.         _flags_filter=cparser_flags

  4378.     fi

  4379. 

  4380.     eval ${pfx}_type=\$_type

  4381.     eval ${pfx}_ident=\$_ident

  4382. }

  4383. 

  4384. set_ccvars(){

  4385.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4386.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4387.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4388. 

  4389.     if [ -n "$_depflags" ]; then

  4390.         eval ${1}_DEPFLAGS=\$_depflags

  4391.     else

  4392.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4393.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4394.         eval DEP${1}FLAGS=\$_flags

  4395.     fi

  4396. }

  4397. 

  4398. probe_cc cc "$cc" "true"

  4399. cflags_filter=$_flags_filter

  4400. cflags_speed=$_cflags_speed

  4401. cflags_size=$_cflags_size

  4402. cflags_noopt=$_cflags_noopt

  4403. add_cflags $_flags $_cflags

  4404. cc_ldflags=$_ldflags

  4405. set_ccvars CC

  4406. set_ccvars CXX

  4407. 

  4408. probe_cc hostcc "$host_cc"

  4409. host_cflags_filter=$_flags_filter

  4410. host_cflags_speed=$_cflags_speed

  4411. add_host_cflags  $_flags $_cflags

  4412. set_ccvars HOSTCC

  4413. 

  4414. test -n "$cc_type" && enable $cc_type ||

  4415.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4416. 

  4417. : ${as_default:=$cc}

  4418. : ${objcc_default:=$cc}

  4419. : ${dep_cc_default:=$cc}

  4420. : ${ld_default:=$cc}

  4421. : ${host_ld_default:=$host_cc}

  4422. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4423. 

  4424. probe_cc as "$as"

  4425. asflags_filter=$_flags_filter

  4426. add_asflags $_flags $_cflags

  4427. set_ccvars AS

  4428. 

  4429. probe_cc objcc "$objcc"

  4430. objcflags_filter=$_flags_filter

  4431. add_objcflags $_flags $_cflags

  4432. set_ccvars OBJC

  4433. 

  4434. probe_cc ld "$ld"

  4435. ldflags_filter=$_flags_filter

  4436. add_ldflags $_flags $_ldflags

  4437. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4438. LD_O=${_ld_o-$LD_O}

  4439. LD_LIB=${_ld_lib-$LD_LIB}

  4440. LD_PATH=${_ld_path-$LD_PATH}

  4441. 

  4442. probe_cc hostld "$host_ld"

  4443. host_ldflags_filter=$_flags_filter

  4444. add_host_ldflags $_flags $_ldflags

  4445. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4446. 

  4447. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4448.     probe_cc depcc "$dep_cc"

  4449.     CCDEP=${_DEPCMD:-$DEPCMD}

  4450.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4451.     DEPCCFLAGS=$_flags

  4452. fi

  4453. 

  4454. if $ar 2>&1 | grep -q Microsoft; then

  4455.     arflags="-nologo"

  4456.     ar_o='-out:$@'

  4457. elif $ar 2>&1 | grep -q "\[D\] "; then

  4458.     arflags="rcD"

  4459.     ar_o='$@'

  4460. else

  4461.     arflags="rc"

  4462.     ar_o='$@'

  4463. fi

  4464. 

  4465. add_cflags $extra_cflags

  4466. add_cxxflags $extra_cxxflags

  4467. add_objcflags $extra_objcflags

  4468. add_asflags $extra_cflags

  4469. 

  4470. if test -n "$sysroot"; then

  4471.     case "$cc_type" in

  4472.         gcc|llvm_gcc|clang)

  4473.             add_cppflags --sysroot="$sysroot"

  4474.             add_ldflags --sysroot="$sysroot"

  4475.         ;;

  4476.     esac

  4477. fi

  4478. 

  4479. if test "$cpu" = host; then

  4480.     enabled cross_compile &&

  4481.         die "--cpu=host makes no sense when cross-compiling."

  4482. 

  4483.     case "$cc_type" in

  4484.         gcc|llvm_gcc)

  4485.             check_native(){

  4486.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4487.                 sed -n "/cc1.*$1=/{

  4488.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4489.                             p

  4490.                             q

  4491.                         }" $TMPE

  4492.             }

  4493.             cpu=$(check_native -march || check_native -mcpu)

  4494.         ;;

  4495.         clang)

  4496.             check_native(){

  4497.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4498.                 sed -n "/cc1.*-target-cpu /{

  4499.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4500.                             p

  4501.                             q

  4502.                         }" $TMPE

  4503.             }

  4504.             cpu=$(check_native -march)

  4505.         ;;

  4506.     esac

  4507. 

  4508.     test "${cpu:-host}" = host &&

  4509.         die "--cpu=host not supported with compiler $cc"

  4510. fi

  4511. 

  4512. # Deal with common $arch aliases

  4513. case "$arch" in

  4514.     aarch64|arm64)

  4515.         arch="aarch64"

  4516.     ;;

  4517.     arm*|iPad*|iPhone*)

  4518.         arch="arm"

  4519.     ;;

  4520.     mips*|IP*)

  4521.         case "$arch" in

  4522.         *el)

  4523.             add_cppflags -EL

  4524.             add_ldflags -EL

  4525.         ;;

  4526.         *eb)

  4527.             add_cppflags -EB

  4528.             add_ldflags -EB

  4529.         ;;

  4530.         esac

  4531.         arch="mips"

  4532.     ;;

  4533.     parisc*|hppa*)

  4534.         arch="parisc"

  4535.     ;;

  4536.     "Power Macintosh"|ppc*|powerpc*)

  4537.         arch="ppc"

  4538.     ;;

  4539.     s390|s390x)

  4540.         arch="s390"

  4541.     ;;

  4542.     sh4|sh)

  4543.         arch="sh4"

  4544.     ;;

  4545.     sun4*|sparc*)

  4546.         arch="sparc"

  4547.     ;;

  4548.     tilegx|tile-gx)

  4549.         arch="tilegx"

  4550.     ;;

  4551.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4552.         arch="x86"

  4553.     ;;

  4554. esac

  4555. 

  4556. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4557. enable $arch

  4558. 

  4559. # Add processor-specific flags

  4560. if enabled aarch64; then

  4561. 

  4562.     case $cpu in

  4563.         armv*)

  4564.             cpuflags="-march=$cpu"

  4565.         ;;

  4566.         *)

  4567.             cpuflags="-mcpu=$cpu"

  4568.         ;;

  4569.     esac

  4570. 

  4571. elif enabled alpha; then

  4572. 

  4573.     cpuflags="-mcpu=$cpu"

  4574. 

  4575. elif enabled arm; then

  4576. 

  4577.     check_arm_arch() {

  4578.         test_cpp_condition stddef.h \

  4579.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4580.             $cpuflags

  4581.     }

  4582. 

  4583.     probe_arm_arch() {

  4584.         if   check_arm_arch 4;        then echo armv4

  4585.         elif check_arm_arch 4T;       then echo armv4t

  4586.         elif check_arm_arch 5;        then echo armv5

  4587.         elif check_arm_arch 5E;       then echo armv5e

  4588.         elif check_arm_arch 5T;       then echo armv5t

  4589.         elif check_arm_arch 5TE;      then echo armv5te

  4590.         elif check_arm_arch 5TEJ;     then echo armv5te

  4591.         elif check_arm_arch 6;        then echo armv6

  4592.         elif check_arm_arch 6J;       then echo armv6j

  4593.         elif check_arm_arch 6K;       then echo armv6k

  4594.         elif check_arm_arch 6Z;       then echo armv6z

  4595.         elif check_arm_arch 6KZ;      then echo armv6zk

  4596.         elif check_arm_arch 6ZK;      then echo armv6zk

  4597.         elif check_arm_arch 6T2;      then echo armv6t2

  4598.         elif check_arm_arch 7;        then echo armv7

  4599.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4600.         elif check_arm_arch 7S;       then echo armv7-a

  4601.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4602.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4603.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4604.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4605.         fi

  4606.     }

  4607. 

  4608.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4609. 

  4610.     case $cpu in

  4611.         armv*)

  4612.             cpuflags="-march=$cpu"

  4613.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4614.         ;;

  4615.         *)

  4616.             cpuflags="-mcpu=$cpu"

  4617.             case $cpu in

  4618.                 cortex-a*)                               subarch=armv7a  ;;

  4619.                 cortex-r*)                               subarch=armv7r  ;;

  4620.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4621.                 arm11*)                                  subarch=armv6   ;;

  4622.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4623.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4624.                 *)                             subarch=$(probe_arm_arch) ;;

  4625.             esac

  4626.         ;;

  4627.     esac

  4628. 

  4629.     case "$subarch" in

  4630.         armv5t*)    enable fast_clz                ;;

  4631.         armv[6-8]*)

  4632.             enable fast_clz

  4633.             disabled fast_unaligned || enable fast_unaligned

  4634.             ;;

  4635.     esac

  4636. 

  4637. elif enabled avr32; then

  4638. 

  4639.     case $cpu in

  4640.         ap7[02]0[0-2])

  4641.             subarch="avr32_ap"

  4642.             cpuflags="-mpart=$cpu"

  4643.         ;;

  4644.         ap)

  4645.             subarch="avr32_ap"

  4646.             cpuflags="-march=$cpu"

  4647.         ;;

  4648.         uc3[ab]*)

  4649.             subarch="avr32_uc"

  4650.             cpuflags="-mcpu=$cpu"

  4651.         ;;

  4652.         uc)

  4653.             subarch="avr32_uc"

  4654.             cpuflags="-march=$cpu"

  4655.         ;;

  4656.     esac

  4657. 

  4658. elif enabled bfin; then

  4659. 

  4660.     cpuflags="-mcpu=$cpu"

  4661. 

  4662. elif enabled mips; then

  4663. 

  4664.     cpuflags="-march=$cpu"

  4665. 

  4666.     if [ "$cpu" != "generic" ]; then

  4667.         disable mips32r2

  4668.         disable mips32r5

  4669.         disable mips64r2

  4670.         disable mips32r6

  4671.         disable mips64r6

  4672.         disable loongson2

  4673.         disable loongson3

  4674. 

  4675.         case $cpu in

  4676.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4677.                 enable mips32r2

  4678.                 disable msa

  4679.             ;;

  4680.             p5600|i6400|p6600)

  4681.                 disable mipsdsp

  4682.                 disable mipsdspr2

  4683.             ;;

  4684.             loongson*)

  4685.                 enable loongson2

  4686.                 enable loongson3

  4687.                 enable local_aligned

  4688.                 enable simd_align_16

  4689.                 enable fast_64bit

  4690.                 enable fast_clz

  4691.                 enable fast_cmov

  4692.                 enable fast_unaligned

  4693.                 disable aligned_stack

  4694.                 disable mipsfpu

  4695.                 disable mipsdsp

  4696.                 disable mipsdspr2

  4697.                 case $cpu in

  4698.                     loongson3*)

  4699.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4700.                     ;;

  4701.                     loongson2e)

  4702.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4703.                     ;;

  4704.                     loongson2f)

  4705.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4706.                     ;;

  4707.                 esac

  4708.             ;;

  4709.             *)

  4710.                 # Unknown CPU. Disable everything.

  4711.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4712.                 disable mipsfpu

  4713.                 disable mipsdsp

  4714.                 disable mipsdspr2

  4715.                 disable msa

  4716.                 disable mmi

  4717.             ;;

  4718.         esac

  4719. 

  4720.         case $cpu in

  4721.             24kc)

  4722.                 disable mipsfpu

  4723.                 disable mipsdsp

  4724.                 disable mipsdspr2

  4725.             ;;

  4726.             24kf*)

  4727.                 disable mipsdsp

  4728.                 disable mipsdspr2

  4729.             ;;

  4730.             24kec|34kc|1004kc)

  4731.                 disable mipsfpu

  4732.                 disable mipsdspr2

  4733.             ;;

  4734.             24kef*|34kf*|1004kf*)

  4735.                 disable mipsdspr2

  4736.             ;;

  4737.             74kc)

  4738.                 disable mipsfpu

  4739.             ;;

  4740.             p5600)

  4741.                 enable mips32r5

  4742.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4743.             ;;

  4744.             i6400)

  4745.                 enable mips64r6

  4746.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4747.             ;;

  4748.             p6600)

  4749.                 enable mips64r6

  4750.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4751.             ;;

  4752.         esac

  4753.     else

  4754.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4755.         warn 'generic cpu selected'

  4756.     fi

  4757. 

  4758. elif enabled ppc; then

  4759. 

  4760.     disable ldbrx

  4761. 

  4762.     case $(tolower $cpu) in

  4763.         601|ppc601|powerpc601)

  4764.             cpuflags="-mcpu=601"

  4765.             disable altivec

  4766.         ;;

  4767.         603*|ppc603*|powerpc603*)

  4768.             cpuflags="-mcpu=603"

  4769.             disable altivec

  4770.         ;;

  4771.         604*|ppc604*|powerpc604*)

  4772.             cpuflags="-mcpu=604"

  4773.             disable altivec

  4774.         ;;

  4775.         g3|75*|ppc75*|powerpc75*)

  4776.             cpuflags="-mcpu=750"

  4777.             disable altivec

  4778.         ;;

  4779.         g4|745*|ppc745*|powerpc745*)

  4780.             cpuflags="-mcpu=7450"

  4781.             disable vsx

  4782.         ;;

  4783.         74*|ppc74*|powerpc74*)

  4784.             cpuflags="-mcpu=7400"

  4785.             disable vsx

  4786.         ;;

  4787.         g5|970|ppc970|powerpc970)

  4788.             cpuflags="-mcpu=970"

  4789.             disable vsx

  4790.         ;;

  4791.         power[3-6]*)

  4792.             cpuflags="-mcpu=$cpu"

  4793.             disable vsx

  4794.         ;;

  4795.         power[7-8]*)

  4796.             cpuflags="-mcpu=$cpu"

  4797.         ;;

  4798.         cell)

  4799.             cpuflags="-mcpu=cell"

  4800.             enable ldbrx

  4801.             disable vsx

  4802.         ;;

  4803.         e500mc)

  4804.             cpuflags="-mcpu=e500mc"

  4805.             disable altivec

  4806.         ;;

  4807.         e500v2)

  4808.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4809.             disable altivec

  4810.             disable dcbzl

  4811.         ;;

  4812.         e500)

  4813.             cpuflags="-mcpu=8540 -mhard-float"

  4814.             disable altivec

  4815.             disable dcbzl

  4816.         ;;

  4817.     esac

  4818. 

  4819. elif enabled sparc; then

  4820. 

  4821.     case $cpu in

  4822.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4823.             cpuflags="-mcpu=$cpu"

  4824.         ;;

  4825.         ultrasparc*|niagara[234])

  4826.             cpuflags="-mcpu=$cpu"

  4827.         ;;

  4828.     esac

  4829. 

  4830. elif enabled x86; then

  4831. 

  4832.     case $cpu in

  4833.         i[345]86|pentium)

  4834.             cpuflags="-march=$cpu"

  4835.             disable i686

  4836.             disable mmx

  4837.         ;;

  4838.         # targets that do NOT support nopl and conditional mov (cmov)

  4839.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4840.             cpuflags="-march=$cpu"

  4841.             disable i686

  4842.         ;;

  4843.         # targets that do support nopl and conditional mov (cmov)

  4844.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4845.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4846.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4847.             cpuflags="-march=$cpu"

  4848.             enable i686

  4849.             enable fast_cmov

  4850.         ;;

  4851.         # targets that do support conditional mov but on which it's slow

  4852.         pentium4|pentium4m|prescott|nocona)

  4853.             cpuflags="-march=$cpu"

  4854.             enable i686

  4855.             disable fast_cmov

  4856.         ;;

  4857.     esac

  4858. 

  4859. fi

  4860. 

  4861. if [ "$cpu" != generic ]; then

  4862.     add_cflags  $cpuflags

  4863.     add_asflags $cpuflags

  4864.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4865. fi

  4866. 

  4867. # compiler sanity check

  4868. test_exec <<EOF

  4869. int main(void){ return 0; }

  4870. EOF

  4871. if test "$?" != 0; then

  4872.     echo "$cc is unable to create an executable file."

  4873.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4874.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4875.         echo "Only do this if you know what cross compiling means."

  4876.     fi

  4877.     die "C compiler test failed."

  4878. fi

  4879. 

  4880. add_cppflags -D_ISOC99_SOURCE

  4881. add_cxxflags -D__STDC_CONSTANT_MACROS

  4882. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4883. 

  4884. # some compilers silently accept -std=c11, so we also need to check that the

  4885. # version macro is defined properly

  4886. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4887.     add_cflags -std=c11 ||

  4888.     check_cflags -std=c99

  4889. 

  4890. check_cppflags -D_FILE_OFFSET_BITS=64

  4891. check_cppflags -D_LARGEFILE_SOURCE

  4892. 

  4893. add_host_cppflags -D_ISOC99_SOURCE

  4894. check_host_cflags -std=c99

  4895. check_host_cflags -Wall

  4896. check_host_cflags $host_cflags_speed

  4897. 

  4898. check_64bit(){

  4899.     arch32=$1

  4900.     arch64=$2

  4901.     expr=${3:-'sizeof(void *) > 4'}

  4902.     test_code cc "" "int test[2*($expr) - 1]" &&

  4903.         subarch=$arch64 || subarch=$arch32

  4904.     enable $subarch

  4905. }

  4906. 

  4907. case "$arch" in

  4908.     aarch64|alpha|ia64)

  4909.         enabled shared && enable_weak pic

  4910.     ;;

  4911.     mips)

  4912.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4913.         enabled shared && enable_weak pic

  4914.     ;;

  4915.     parisc)

  4916.         check_64bit parisc parisc64

  4917.         enabled shared && enable_weak pic

  4918.     ;;

  4919.     ppc)

  4920.         check_64bit ppc ppc64

  4921.         enabled shared && enable_weak pic

  4922.     ;;

  4923.     s390)

  4924.         check_64bit s390 s390x

  4925.         enabled shared && enable_weak pic

  4926.     ;;

  4927.     sparc)

  4928.         check_64bit sparc sparc64

  4929.         enabled shared && enable_weak pic

  4930.     ;;

  4931.     x86)

  4932.         check_64bit x86_32 x86_64

  4933.         # Treat x32 as x64 for now. Note it also needs pic if shared

  4934.         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4935.             subarch=x86_64 && enable x86_64 && disable x86_32

  4936.         if enabled x86_64; then

  4937.             enabled shared && enable_weak pic

  4938.             objformat=elf64

  4939.         fi

  4940.     ;;

  4941. esac

  4942. 

  4943. # OS specific

  4944. case $target_os in

  4945.     aix)

  4946.         SHFLAGS=-shared

  4947.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4948.         enabled shared && add_ldflags -Wl,-brtl

  4949.         arflags='-Xany -r -c'

  4950.         ;;

  4951.     android)

  4952.         disable symver

  4953.         enable section_data_rel_ro

  4954.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4955.         SLIB_INSTALL_LINKS=

  4956.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4957.         ;;

  4958.     haiku)

  4959.         prefix_default="/boot/common"

  4960.         network_extralibs="-lnetwork"

  4961.         host_extralibs=

  4962.         ;;

  4963.     sunos)

  4964.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4965.         enabled x86 && append SHFLAGS -mimpure-text

  4966.         network_extralibs="-lsocket -lnsl"

  4967.         add_cppflags -D__EXTENSIONS__

  4968.         # When using suncc to build, the Solaris linker will mark

  4969.         # an executable with each instruction set encountered by

  4970.         # the Solaris assembler.  As our libraries contain their own

  4971.         # guards for processor-specific code, instead suppress

  4972.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4973.         enabled_all suncc x86 &&

  4974.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4975.             add_ldflags -Wl,-M,mapfile

  4976.         nm_default='nm -P -g'

  4977.         version_script='-M'

  4978.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4979.         ;;

  4980.     netbsd)

  4981.         disable symver

  4982.         oss_indev_extralibs="-lossaudio"

  4983.         oss_outdev_extralibs="-lossaudio"

  4984.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4985.         ;;

  4986.     openbsd|bitrig)

  4987.         disable symver

  4988.         SHFLAGS='-shared'

  4989.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4990.         SLIB_INSTALL_LINKS=

  4991.         oss_indev_extralibs="-lossaudio"

  4992.         oss_outdev_extralibs="-lossaudio"

  4993.         ;;

  4994.     dragonfly)

  4995.         disable symver

  4996.         ;;

  4997.     freebsd)

  4998.         ;;

  4999.     bsd/os)

  5000.         add_extralibs -lpoll -lgnugetopt

  5001.         strip="strip -d"

  5002.         ;;

  5003.     darwin)

  5004.         enabled ppc && add_asflags -force_cpusubtype_ALL

  5005.         install_name_dir_default='$(SHLIBDIR)'

  5006.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  5007.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  5008.         strip="${strip} -x"

  5009.         add_ldflags -Wl,-dynamic,-search_paths_first

  5010.         check_cflags -Werror=partial-availability

  5011.         SLIBSUF=".dylib"

  5012.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  5013.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  5014.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  5015.         enabled_any pic shared x86_64 ||

  5016.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  5017.         check_header dispatch/dispatch.h &&

  5018.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  5019.         if test -n "$sysroot"; then

  5020.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  5021.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  5022.         fi

  5023.         version_script='-exported_symbols_list'

  5024.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  5025.         ;;

  5026.     msys*)

  5027.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  5028.         ;;

  5029.     mingw32*|mingw64*)

  5030.         target_os=mingw32

  5031.         LIBTARGET=i386

  5032.         if enabled x86_64; then

  5033.             LIBTARGET="i386:x86-64"

  5034.         elif enabled arm; then

  5035.             LIBTARGET="arm"

  5036.         elif enabled aarch64; then

  5037.             LIBTARGET="arm64"

  5038.         fi

  5039.         if enabled shared; then

  5040.             # Cannot build both shared and static libs when using dllimport.

  5041.             disable static

  5042.         fi

  5043.         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres

  5044.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  5045.         shlibdir_default="$bindir_default"

  5046.         SLIBPREF=""

  5047.         SLIBSUF=".dll"

  5048.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5049.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5050.         if test_cmd lib.exe -list; then

  5051.             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5052.             if enabled x86_64; then

  5053.                 LIBTARGET=x64

  5054.             fi

  5055.         else

  5056.             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'

  5057.         fi

  5058.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5059.         SLIB_INSTALL_LINKS=

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

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

  5062.         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)'

  5063.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  5064.         enabled x86_64 && objformat="win64" || objformat="win32"

  5065.         dlltool="${cross_prefix}dlltool"

  5066.         ranlib=:

  5067.         enable dos_paths

  5068.         check_ldflags -Wl,--nxcompat,--dynamicbase

  5069.         # Lets work around some stupidity in binutils.

  5070.         # ld will strip relocations from executables even though we need them

  5071.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  5072.         # however ld then forgets what the entry point should be (oops) so we

  5073.         # have to manually (re)set it.

  5074.         if enabled x86_32; then

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

  5076.         elif enabled x86_64; then

  5077.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5078.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5079.             # Set image base >4GB for extra entropy with HEASLR

  5080.             add_ldexeflags -Wl,--image-base,0x140000000

  5081.             append SHFLAGS -Wl,--image-base,0x180000000

  5082.         fi

  5083.         ;;

  5084.     win32|win64)

  5085.         disable symver

  5086.         if enabled shared; then

  5087.             # Link to the import library instead of the normal static library

  5088.             # for shared libs.

  5089.             LD_LIB='%.lib'

  5090.             # Cannot build both shared and static libs with MSVC or icl.

  5091.             disable static

  5092.         fi

  5093.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5094.         shlibdir_default="$bindir_default"

  5095.         SLIBPREF=""

  5096.         SLIBSUF=".dll"

  5097.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5098.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5099.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5100.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5101.         SLIB_INSTALL_LINKS=

  5102.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5103.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5104.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5105.         enabled x86_64 && objformat="win64" || objformat="win32"

  5106.         ranlib=:

  5107.         enable dos_paths

  5108.         ;;

  5109.     cygwin*)

  5110.         target_os=cygwin

  5111.         shlibdir_default="$bindir_default"

  5112.         SLIBPREF="cyg"

  5113.         SLIBSUF=".dll"

  5114.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5115.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5116.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5117.         SLIB_INSTALL_LINKS=

  5118.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5119.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5120.         enabled x86_64 && objformat="win64" || objformat="win32"

  5121.         enable dos_paths

  5122.         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres

  5123.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5124.         ;;

  5125.     *-dos|freedos|opendos)

  5126.         network_extralibs="-lsocket"

  5127.         objformat="coff"

  5128.         enable dos_paths

  5129.         add_cppflags -U__STRICT_ANSI__

  5130.         ;;

  5131.     linux)

  5132.         enable section_data_rel_ro

  5133.         enabled_any arm aarch64 && enable_weak linux_perf

  5134.         ;;

  5135.     irix*)

  5136.         target_os=irix

  5137.         ranlib="echo ignoring ranlib"

  5138.         ;;

  5139.     os/2*)

  5140.         strip="lxlite -CS"

  5141.         striptype=""

  5142.         objformat="aout"

  5143.         add_cppflags -D_GNU_SOURCE

  5144.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5145.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5146.         LIBSUF="_s.a"

  5147.         SLIBPREF=""

  5148.         SLIBSUF=".dll"

  5149.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5150.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5151.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5152.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5153.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5154.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5155.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5156.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5157.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5158.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5159.         SLIB_INSTALL_LINKS=

  5160.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5161.         enable dos_paths

  5162.         enable_weak os2threads

  5163.         ;;

  5164.     gnu/kfreebsd)

  5165.         add_cppflags -D_BSD_SOURCE

  5166.         ;;

  5167.     gnu)

  5168.         ;;

  5169.     qnx)

  5170.         add_cppflags -D_QNX_SOURCE

  5171.         network_extralibs="-lsocket"

  5172.         ;;

  5173.     symbian)

  5174.         SLIBSUF=".dll"

  5175.         enable dos_paths

  5176.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5177.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5178.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5179.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5180.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5181.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5182.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5183.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5184.         ;;

  5185.     minix)

  5186.         ;;

  5187.     none)

  5188.         ;;

  5189.     *)

  5190.         die "Unknown OS '$target_os'."

  5191.         ;;

  5192. esac

  5193. 

  5194. # test if creating links works

  5195. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5196. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5197. mkdir "$link_dest"

  5198. $ln_s "$link_dest" "$link_name"

  5199. touch "$link_dest/test_file"

  5200. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5201.     # create link to source path

  5202.     [ -e src ] && rm src

  5203.     $ln_s "$source_path" src

  5204.     source_link=src

  5205. else

  5206.     # creating directory links doesn't work

  5207.     # fall back to using the full source path

  5208.     source_link="$source_path"

  5209. fi

  5210. # cleanup

  5211. rm -r "$link_dest"

  5212. rm -r "$link_name"

  5213. 

  5214. # determine libc flavour

  5215. 

  5216. probe_libc(){

  5217.     pfx=$1

  5218.     pfx_no_=${pfx%_}

  5219.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5220.     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5221.         eval ${pfx}libc_type=uclibc

  5222.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5223.     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5224.         eval ${pfx}libc_type=glibc

  5225.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5226.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5227.     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5228.         eval ${pfx}libc_type=newlib

  5229.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5230.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5231.     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5232.         eval ${pfx}libc_type=mingw64

  5233.         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5234.             add_compat msvcrt/snprintf.o

  5235.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5236.         fi

  5237.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5238.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5239.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5240.         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5241.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5242.     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5243.          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5244.         eval ${pfx}libc_type=mingw32

  5245.         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5246.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5247.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5248.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5249.         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5250.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5251.         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5252.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5253.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5254.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5255.     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5256.         eval ${pfx}libc_type=msvcrt

  5257.         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5258.             if [ "$pfx" = host_ ]; then

  5259.                 add_host_cppflags -Dsnprintf=_snprintf

  5260.             else

  5261.                 add_compat strtod.o strtod=avpriv_strtod

  5262.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5263.                                              _snprintf=avpriv_snprintf  \

  5264.                                              vsnprintf=avpriv_vsnprintf

  5265.             fi

  5266.         fi

  5267.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5268.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5269.         # 0x601 by default unless something else is set by the user.

  5270.         # This can easily lead to us detecting functions only present

  5271.         # in such new versions and producing binaries requiring windows 7.0.

  5272.         # Therefore explicitly set the default to Vista unless the user has

  5273.         # set something else on the command line.

  5274.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5275.         # family. For these cases, configure is free to use any functions

  5276.         # found in the SDK headers by default. (Alternatively, we could force

  5277.         # _WIN32_WINNT to 0x0602 in that case.)

  5278.         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5279.             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }

  5280. #ifdef WINAPI_FAMILY

  5281. #include <winapifamily.h>

  5282. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5283. #error not desktop

  5284. #endif

  5285. #endif

  5286. EOF

  5287.         if [ "$pfx" = "" ]; then

  5288.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5289.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5290.         fi

  5291.     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5292.         eval ${pfx}libc_type=klibc

  5293.     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5294.         eval ${pfx}libc_type=bionic

  5295.     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5296.         eval ${pfx}libc_type=solaris

  5297.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5298.     fi

  5299.     test_${pfx}cc <<EOF

  5300. #include <time.h>

  5301. void *v = localtime_r;

  5302. EOF

  5303. test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5304. #include <time.h>

  5305. void *v = localtime_r;

  5306. EOF

  5307. 

  5308.     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}

  5309. }

  5310. 

  5311. probe_libc

  5312. probe_libc host_

  5313. 

  5314. # hacks for compiler/libc/os combinations

  5315. 

  5316. case $libc_type in

  5317.     bionic)

  5318.         add_compat strtod.o strtod=avpriv_strtod

  5319.         ;;

  5320. esac

  5321. 

  5322. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5323.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5324. 

  5325. test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5326. 

  5327. set_default libdir

  5328. : ${shlibdir_default:="$libdir"}

  5329. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5330. 

  5331. set_default $PATHS_LIST

  5332. set_default nm

  5333. 

  5334. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5335. 

  5336. enable_weak_pic() {

  5337.     disabled pic && return

  5338.     enable pic

  5339.     add_cppflags -DPIC

  5340.     case "$target_os" in

  5341.     mingw*|cygwin*|win*)

  5342.         ;;

  5343.     *)

  5344.         add_cflags -fPIC

  5345.         add_asflags -fPIC

  5346.         ;;

  5347.     esac

  5348. }

  5349. 

  5350. enabled pic && enable_weak_pic

  5351. 

  5352. test_cc <<EOF || die "Symbol mangling check failed."

  5353. int ff_extern;

  5354. EOF

  5355. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5356. extern_prefix=${sym%%ff_extern*}

  5357. 

  5358. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5359. 

  5360. for restrict_keyword in restrict __restrict__ __restrict ""; do

  5361.     test_cc <<EOF && break

  5362. void foo(char * $restrict_keyword p);

  5363. EOF

  5364. done

  5365. 

  5366. test_cc <<EOF && enable pragma_deprecated

  5367. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5368. EOF

  5369. 

  5370. test_cc <<EOF || die "endian test failed"

  5371. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5372. EOF

  5373. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5374. 

  5375. test_cc <<EOF && enable const_nan

  5376. #include <math.h>

  5377. void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }

  5378. EOF

  5379. 

  5380. if ! enabled ppc64 || enabled bigendian; then

  5381.     disable vsx

  5382. fi

  5383. 

  5384. check_gas() {

  5385.     log "check_gas using '$as' as AS"

  5386.     # :vararg is used on aarch64, arm and ppc altivec

  5387.     test_as <<EOF || return 1

  5388. .macro m n, y:vararg=0

  5389. \n: .int \y

  5390. .endm

  5391. m x

  5392. EOF

  5393.     # .altmacro is only used in arm asm

  5394.     ! enabled arm || test_as <<EOF || return 1

  5395. .altmacro

  5396. EOF

  5397.     enable gnu_as

  5398.     return 0

  5399. }

  5400. 

  5401. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5402.     nogas=:

  5403.     enabled_any arm aarch64 && nogas=die

  5404.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5405.     as_noop=-v

  5406. 

  5407.     case $as_type in

  5408.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5409.         gcc)  gaspp_as_type=gas ;;

  5410.         *)    gaspp_as_type=$as_type ;;

  5411.     esac

  5412. 

  5413.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5414. 

  5415.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5416.     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5417.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5418. 

  5419.     if ! check_gas ; then

  5420.         as=${gas:=$as}

  5421.         check_gas || \

  5422.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5423.     fi

  5424. 

  5425.     test_as <<EOF && enable as_func

  5426. .func test

  5427. .endfunc

  5428. EOF

  5429. fi

  5430. 

  5431. check_inline_asm inline_asm_labels '"1:\n"'

  5432. 

  5433. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5434. 

  5435. if enabled aarch64; then

  5436.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5437.     # internal assembler in clang 3.3 does not support this instruction

  5438.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5439.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5440. 

  5441.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5442. 

  5443. elif enabled alpha; then

  5444. 

  5445.     check_cflags -mieee

  5446. 

  5447. elif enabled arm; then

  5448. 

  5449.     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"

  5450.     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb

  5451. float func(float a, float b){ return a+b; }

  5452. EOF

  5453.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5454. 

  5455.     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then

  5456.         :

  5457.     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5458.         :

  5459.     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5460.         case "${cross_prefix:-$cc}" in

  5461.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5462.             *) test_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5463. __asm__ (".eabi_attribute 28, 1");

  5464. int main(void) { return 0; }

  5465. EOF

  5466.         esac

  5467.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5468.     fi

  5469. 

  5470.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5471.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5472.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5473.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5474.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5475.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5476.     enabled setend  && check_insn setend  'setend be'

  5477. 

  5478.     [ $target_os = linux ] || [ $target_os = android ] ||

  5479.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5480.             $ARCH_EXT_LIST_ARM

  5481. 

  5482.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5483. 

  5484.     test_as <<EOF && enable as_arch_directive

  5485. .arch armv7-a

  5486. EOF

  5487.     test_as <<EOF && enable as_fpu_directive

  5488. .fpu neon

  5489. EOF

  5490. 

  5491.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5492.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5493.         test_as <<EOF && enable as_object_arch

  5494. .object_arch armv4

  5495. EOF

  5496. 

  5497.     # MS armasm fails to assemble our PIC constructs

  5498.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5499. 

  5500. elif enabled mips; then

  5501. 

  5502.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5503.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5504.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5505. 

  5506.     # Enable minimum ISA based on selected options

  5507.     if enabled mips64; then

  5508.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5509.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5510.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5511.     else

  5512.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5513.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5514.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5515.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5516.     fi

  5517. 

  5518.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5519.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5520.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5521.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5522.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5523. 

  5524.     if enabled bigendian && enabled msa; then

  5525.         disable msa

  5526.     fi

  5527. 

  5528. elif enabled parisc; then

  5529. 

  5530.     if enabled gcc; then

  5531.         case $($cc -dumpversion) in

  5532.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5533.         esac

  5534.     fi

  5535. 

  5536. elif enabled ppc; then

  5537. 

  5538.     enable local_aligned

  5539. 

  5540.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5541.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5542.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5543.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5544. 

  5545.     if enabled altivec; then

  5546.         check_cflags -maltivec -mabi=altivec

  5547. 

  5548.         # check if our compiler supports Motorola AltiVec C API

  5549.         test_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };

  5550.                                  vector signed int v2 = (vector signed int) { 1 };

  5551.                                  v1 = vec_add(v1, v2);" ||

  5552.             disable altivec

  5553. 

  5554.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5555.     fi

  5556. 

  5557.     if enabled vsx; then

  5558.         check_cflags -mvsx &&

  5559.         test_code cc altivec.h "int v[4] = { 0 };

  5560.                                  vector signed int v1 = vec_vsx_ld(0, v);" ||

  5561.             disable vsx

  5562.     fi

  5563. 

  5564.     if enabled power8; then

  5565.         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"

  5566.     fi

  5567. 

  5568. elif enabled x86; then

  5569. 

  5570.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5571.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5572. 

  5573.     enable local_aligned

  5574. 

  5575.     # check whether EBP is available on x86

  5576.     # As 'i' is stored on the stack, this program will crash

  5577.     # if the base pointer is used to access it because the

  5578.     # base pointer is cleared in the inline assembly code.

  5579.     check_exec_crash <<EOF && enable ebp_available

  5580. volatile int i=0;

  5581. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5582. return i;

  5583. EOF

  5584. 

  5585.     # check whether EBX is available on x86

  5586.     check_inline_asm ebx_available '""::"b"(0)' &&

  5587.         check_inline_asm ebx_available '"":::"%ebx"'

  5588. 

  5589.     # check whether xmm clobbers are supported

  5590.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5591. 

  5592.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5593.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5594. 

  5595.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5596.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5597.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5598. 

  5599.     probe_x86asm(){

  5600.         x86asmexe_probe=$1

  5601.         if test_cmd $x86asmexe_probe -v; then

  5602.             x86asmexe=$x86asmexe_probe

  5603.             x86asm_type=nasm

  5604.             x86asm_debug="-g -F dwarf"

  5605.             X86ASMDEP=

  5606.             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5607.         elif test_cmd $x86asmexe_probe --version; then

  5608.             x86asmexe=$x86asmexe_probe

  5609.             x86asm_type=yasm

  5610.             x86asm_debug="-g dwarf2"

  5611.             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5612.             X86ASM_DEPFLAGS=

  5613.         fi

  5614.         test_x86asm "movbe ecx, [5]" && enable x86asm

  5615.     }

  5616. 

  5617.     if ! disabled_any asm mmx x86asm; then

  5618.         disable x86asm

  5619.         for program in $x86asmexe nasm yasm; do

  5620.             probe_x86asm $program && break

  5621.         done

  5622.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5623.         X86ASMFLAGS="-f $objformat"

  5624.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5625.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5626.         case "$objformat" in

  5627.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5628.         esac

  5629. 

  5630.         test_x86asm "vmovdqa32 [eax]{k1}{z}, zmm0"    || disable avx512_external

  5631.         test_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5632.         test_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5633.         test_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5634.         test_x86asm "CPU amdnop" || disable cpunop

  5635.     fi

  5636. 

  5637.     case "$cpu" in

  5638.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5639.             disable fast_clz

  5640.         ;;

  5641.     esac

  5642. 

  5643. fi

  5644. 

  5645. test_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5646. 

  5647. check_ldflags -Wl,--as-needed

  5648. check_ldflags -Wl,-z,noexecstack

  5649. 

  5650. if ! disabled network; then

  5651.     check_func getaddrinfo $network_extralibs

  5652.     check_func inet_aton $network_extralibs

  5653. 

  5654.     check_type netdb.h "struct addrinfo"

  5655.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5656.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5657.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5658.     check_type poll.h "struct pollfd"

  5659.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5660.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5661.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5662.     check_type netinet/in.h "struct sockaddr_in6"

  5663.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5664.     check_type "sys/types.h sys/socket.h" socklen_t

  5665. 

  5666.     # Prefer arpa/inet.h over winsock2

  5667.     if check_header arpa/inet.h ; then

  5668.         check_func closesocket

  5669.     elif check_header winsock2.h ; then

  5670.         check_func_headers winsock2.h closesocket -lws2 &&

  5671.             network_extralibs="-lws2" ||

  5672.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5673.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5674.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5675. 

  5676.         check_type ws2tcpip.h socklen_t

  5677.         check_type ws2tcpip.h "struct addrinfo"

  5678.         check_type ws2tcpip.h "struct group_source_req"

  5679.         check_type ws2tcpip.h "struct ip_mreq_source"

  5680.         check_type ws2tcpip.h "struct ipv6_mreq"

  5681.         check_type winsock2.h "struct pollfd"

  5682.         check_struct winsock2.h "struct sockaddr" sa_len

  5683.         check_type ws2tcpip.h "struct sockaddr_in6"

  5684.         check_type ws2tcpip.h "struct sockaddr_storage"

  5685.     else

  5686.         disable network

  5687.     fi

  5688. fi

  5689. 

  5690. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5691. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5692. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5693. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5694. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5695. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5696. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5697. 

  5698. case "$custom_allocator" in

  5699.     jemalloc)

  5700.         # jemalloc by default does not use a prefix

  5701.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5702.     ;;

  5703.     tcmalloc)

  5704.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5705.         malloc_prefix=tc_

  5706.     ;;

  5707. esac

  5708. 

  5709. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5710. check_func  ${malloc_prefix}memalign            && enable memalign

  5711. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5712. 

  5713. check_func  access

  5714. check_func_headers stdlib.h arc4random

  5715. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5716. check_func  fcntl

  5717. check_func  fork

  5718. check_func  gethrtime

  5719. check_func  getopt

  5720. check_func  getrusage

  5721. check_func  gettimeofday

  5722. check_func  isatty

  5723. check_func  mkstemp

  5724. check_func  mmap

  5725. check_func  mprotect

  5726. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5727. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5728. check_func  sched_getaffinity

  5729. check_func  setrlimit

  5730. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5731. check_func  strerror_r

  5732. check_func  sysconf

  5733. check_func  sysctl

  5734. check_func  usleep

  5735. 

  5736. check_func_headers conio.h kbhit

  5737. check_func_headers io.h setmode

  5738. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5739. check_func_headers mach/mach_time.h mach_absolute_time

  5740. check_func_headers stdlib.h getenv

  5741. check_func_headers sys/stat.h lstat

  5742. 

  5743. check_func_headers windows.h GetProcessAffinityMask

  5744. check_func_headers windows.h GetProcessTimes

  5745. check_func_headers windows.h GetSystemTimeAsFileTime

  5746. check_func_headers windows.h LoadLibrary

  5747. check_func_headers windows.h MapViewOfFile

  5748. check_func_headers windows.h PeekNamedPipe

  5749. check_func_headers windows.h SetConsoleTextAttribute

  5750. check_func_headers windows.h SetConsoleCtrlHandler

  5751. check_func_headers windows.h Sleep

  5752. check_func_headers windows.h VirtualAlloc

  5753. check_func_headers glob.h glob

  5754. enabled xlib &&

  5755.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5756. 

  5757. check_header direct.h

  5758. check_header dirent.h

  5759. check_header dxgidebug.h

  5760. check_header dxva.h

  5761. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5762. check_header io.h

  5763. check_header libcrystalhd/libcrystalhd_if.h

  5764. check_header malloc.h

  5765. check_header net/udplite.h

  5766. check_header poll.h

  5767. check_header sys/param.h

  5768. check_header sys/resource.h

  5769. check_header sys/select.h

  5770. check_header sys/time.h

  5771. check_header sys/un.h

  5772. check_header termios.h

  5773. check_header unistd.h

  5774. check_header valgrind/valgrind.h

  5775. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5776. check_header windows.h

  5777. check_header X11/extensions/XvMClib.h

  5778. check_header asm/types.h

  5779. 

  5780. # it seems there are versions of clang in some distros that try to use the

  5781. # gcc headers, which explodes for stdatomic

  5782. # so we also check that atomics actually work here

  5783. check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5784. 

  5785. check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32

  5786. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5787. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5788. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5789. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5790. 

  5791. check_lib android android/native_window.h ANativeWindow_acquire -landroid

  5792. check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk

  5793. check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk

  5794. 

  5795. enabled appkit       && check_apple_framework AppKit

  5796. enabled audiotoolbox && check_apple_framework AudioToolbox

  5797. enabled avfoundation && check_apple_framework AVFoundation

  5798. enabled coreimage    && check_apple_framework CoreImage

  5799. enabled videotoolbox && check_apple_framework VideoToolbox

  5800. 

  5801. check_apple_framework CoreFoundation

  5802. check_apple_framework CoreMedia

  5803. check_apple_framework CoreVideo

  5804. 

  5805. enabled avfoundation && {

  5806.     disable coregraphics applicationservices

  5807.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5808.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5809. 

  5810. enabled videotoolbox && {

  5811.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5812.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5813. }

  5814. 

  5815. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5816. 

  5817. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5818. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5819. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5820. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5821. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5822. 

  5823. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5824. check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"

  5825. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5826. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5827. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5828. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5829. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5830. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5831. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5832. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5833. 

  5834. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5835. 

  5836. if ! disabled ffnvcodec; then

  5837.     check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.1" \

  5838.         "ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h" ""

  5839. fi

  5840. 

  5841. check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"

  5842. 

  5843. if ! disabled w32threads && ! enabled pthreads; then

  5844.     check_func_headers "windows.h process.h" _beginthreadex &&

  5845.         check_type "windows.h" CONDITION_VARIABLE &&

  5846.         enable w32threads || disable w32threads

  5847.     if ! enabled w32threads && enabled winrt; then

  5848.         check_func_headers "windows.h" CreateThread &&

  5849.             enable w32threads || disable w32threads

  5850.     fi

  5851. fi

  5852. 

  5853. # check for some common methods of building with pthread support

  5854. # do this before the optional library checks as some of them require pthreads

  5855. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5856.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5857.        check_lib pthreads pthread.h pthread_create -pthread; then

  5858.         add_cflags -pthread

  5859.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5860.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5861.         add_cflags -pthreads

  5862.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5863.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5864.         add_cflags -ldl -pthread

  5865.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5866.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5867.         :

  5868.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5869.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5870.         :

  5871.     elif check_func pthread_join && check_func pthread_create; then

  5872.         enable pthreads

  5873.     fi

  5874.     test_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5875. 

  5876.     if enabled pthreads; then

  5877.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5878.         check_func pthread_cancel $pthreads_extralibs

  5879.     fi

  5880. fi

  5881. 

  5882. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5883. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5884. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5885. 

  5886. # On some systems dynamic loading requires no extra linker flags

  5887. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5888. 

  5889. check_lib libm math.h sin -lm

  5890. 

  5891. atan2f_args=2

  5892. copysign_args=2

  5893. hypot_args=2

  5894. ldexpf_args=2

  5895. powf_args=2

  5896. 

  5897. for func in $MATH_FUNCS; do

  5898.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5899. done

  5900. 

  5901. for func in $COMPLEX_FUNCS; do

  5902.     eval check_complexfunc $func \${${func}_args:-1}

  5903. done

  5904. 

  5905. # these are off by default, so fail if requested and not available

  5906. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5907. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5908. enabled decklink          && { require_header DeckLinkAPI.h &&

  5909.                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5910. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5911. enabled frei0r            && require_header frei0r.h

  5912. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5913. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5914. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5915. enabled ladspa            && require_header ladspa.h

  5916. enabled lv2               && require_pkg_config lv2 lilv-0 "lilv-0/lilv/lilv.h" lilv_world_new

  5917. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5918. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5919. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5920. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5921. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5922.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5923.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5924. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5925. enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2

  5926. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5927. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5928. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5929.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5930.                                  warn "using libfdk without pkg-config"; } }

  5931. 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"

  5932. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5933. enabled fontconfig        && enable libfontconfig

  5934. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5935. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5936. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5937. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5938.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5939. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5940.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5941.                                done || die "ERROR: libgsm not found"; }

  5942. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5943. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5944. # While it may appear that require is being used as a pkg-config

  5945. # fallback for libmfx, it is actually being used to detect a different

  5946. # installation route altogether.  If libmfx is installed via the Intel

  5947. # Media SDK or Intel Media Server Studio, these don't come with

  5948. # pkg-config support.  Instead, users should make sure that the build

  5949. # can find the libraries and headers through other means.

  5950. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5951.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  5952. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5953. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs

  5954. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  5955. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5956.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5957.                                die "ERROR: libnpp not found"; }

  5958. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5959. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5960. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5961.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5962.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5963.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  5964. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  5965. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  5966.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  5967. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  5968. enabled libopus           && {

  5969.     enabled libopus_decoder && {

  5970.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  5971.     }

  5972.     enabled libopus_encoder && {

  5973.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  5974.     }

  5975. }

  5976. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  5977. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5978. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  5979. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  5980. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  5981. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  5982.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  5983. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  5984. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  5985. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  5986. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  5987. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  5988. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5989. enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure

  5990. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5991.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5992.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5993. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  5994. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5995. enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 0.6.2" libvmaf.h compute_vmaf

  5996. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5997. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  5998.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5999. 

  6000. enabled libvpx            && {

  6001.     enabled libvpx_vp8_decoder && {

  6002.         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  6003.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  6004.                 die "ERROR: libvpx decoder version must be >=1.4.0";

  6005.     }

  6006.     enabled libvpx_vp8_encoder && {

  6007.         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  6008.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  6009.                 die "ERROR: libvpx encoder version must be >=1.4.0";

  6010.     }

  6011.     enabled libvpx_vp9_decoder && {

  6012.         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  6013.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  6014.     }

  6015.     enabled libvpx_vp9_encoder && {

  6016.         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  6017.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  6018.     }

  6019.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  6020.         die "libvpx enabled but no supported decoders found"

  6021.     fi

  6022. }

  6023. 

  6024. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  6025. enabled libwebp           && {

  6026.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  6027.     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  6028. enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  6029.                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&

  6030.                                  warn "using libx264 without pkg-config"; } } &&

  6031.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  6032.                              check_cpp_condition libx262 x264.h "X264_MPEG2"

  6033. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  6034.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  6035. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  6036. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  6037. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version

  6038. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  6039. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  6040.                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  6041.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  6042. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  6043. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  6044. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  6045.                                { ! enabled cross_compile &&

  6046.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  6047.                                  add_ldflags -L/opt/vc/lib/ &&

  6048.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  6049.                                die "ERROR: mmal not found" &&

  6050.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  6051. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  6052.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  6053.                                die "ERROR: openal not found"; } &&

  6054.                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  6055.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  6056. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  6057.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  6058.                                die "ERROR: opencl not found"; } &&

  6059.                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  6060.                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  6061.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  6062. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  6063.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  6064.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6065.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6066.                                die "ERROR: opengl not found."

  6067.                              }

  6068. enabled omx               && require_header OMX_Core.h

  6069. enabled omx_rpi           && { check_header OMX_Core.h ||

  6070.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6071.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  6072. enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  6073.                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  6074.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6075.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6076.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6077.                                die "ERROR: openssl not found"; }

  6078. enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&

  6079.                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&

  6080.                                { enabled libdrm ||

  6081.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  6082.                              }

  6083. 

  6084. if enabled gcrypt; then

  6085.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6086.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6087.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6088.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6089.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6090.             die "ERROR: gcrypt not found"

  6091.         add_cflags $gcrypt_cflags

  6092.     else

  6093.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6094.     fi

  6095. fi

  6096. 

  6097. if enabled sdl2; then

  6098.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6099.     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent

  6100.     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6101.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6102.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6103.         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6104.         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6105.         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&

  6106.             enable sdl2

  6107.     fi

  6108.     if test $target_os = "mingw32"; then

  6109.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6110.     fi

  6111. fi

  6112. 

  6113. if enabled decklink; then

  6114.     case $target_os in

  6115.         mingw32*|mingw64*|win32|win64)

  6116.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6117.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6118.             ;;

  6119.     esac

  6120. fi

  6121. 

  6122. enabled securetransport &&

  6123.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6124.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6125.         disable securetransport

  6126. 

  6127. enabled securetransport &&

  6128.     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"

  6129. 

  6130. enabled schannel &&

  6131.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6132.     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6133.     schannel_extralibs="-lsecur32" ||

  6134.         disable schannel

  6135. 

  6136. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6137. enabled makeinfo \

  6138.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6139.     && enable makeinfo_html || disable makeinfo_html

  6140. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6141. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6142. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6143. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6144. 

  6145. # check V4L2 codecs available in the API

  6146. check_header linux/fb.h

  6147. check_header linux/videodev2.h

  6148. test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6149. test_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m

  6150. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m

  6151. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m

  6152. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m

  6153. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m

  6154. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m

  6155. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m

  6156. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m

  6157. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m

  6158. test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m

  6159. 

  6160. check_header sys/videoio.h

  6161. test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6162. 

  6163. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6164. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6165. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6166. # w32api 3.12 had it defined wrong

  6167. check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"

  6168. 

  6169. check_type "dshow.h" IBaseFilter

  6170. 

  6171. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6172. check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||

  6173.     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||

  6174.     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||

  6175.     check_header "dev/ic/bt8xx.h"

  6176. 

  6177. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6178.     enable_sanitized sys/soundcard.h

  6179. else

  6180.     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6181.     #include <sys/soundcard.h>

  6182.     audio_buf_info abc;

  6183. EOF

  6184. fi

  6185. 

  6186. enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6187.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6188. 

  6189. enabled libjack &&

  6190.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6191. 

  6192. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6193. 

  6194. if enabled libcdio; then

  6195.     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6196.     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6197.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6198.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6199.     die "ERROR: No usable libcdio/cdparanoia found"

  6200. fi

  6201. 

  6202. enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6203.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6204. 

  6205. if enabled libxcb; then

  6206.     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6207.     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6208.     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6209. fi

  6210. 

  6211. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6212. 

  6213. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6214. # the desktop api partition

  6215. test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6216. #ifdef WINAPI_FAMILY

  6217. #include <winapifamily.h>

  6218. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6219. #error desktop, not uwp

  6220. #else

  6221. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6222. #endif

  6223. #else

  6224. #error no family set

  6225. #endif

  6226. EOF

  6227. 

  6228. enabled vaapi &&

  6229.     check_lib vaapi va/va.h vaInitialize -lva

  6230. 

  6231. enabled vaapi &&

  6232.     test_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6233.     disable vaapi

  6234. 

  6235. enabled vaapi &&

  6236.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6237. 

  6238. enabled vaapi &&

  6239.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6240. 

  6241. enabled vaapi &&

  6242.     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"

  6243. 

  6244. if enabled_all opencl vaapi ; then

  6245.     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&

  6246.         enable opencl_vaapi_beignet

  6247.     if enabled libmfx ; then

  6248.         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&

  6249.             enable opencl_vaapi_intel_media

  6250.     fi

  6251. fi

  6252. 

  6253. if enabled_all opencl dxva2 ; then

  6254.     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&

  6255.         enable opencl_dxva2

  6256. fi

  6257. 

  6258. if enabled_all opencl d3d11va ; then

  6259.     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&

  6260.         enable opencl_d3d11

  6261. fi

  6262. 

  6263. if enabled_all opencl libdrm ; then

  6264.     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&

  6265.         enable opencl_drm_arm

  6266. fi

  6267. 

  6268. enabled vdpau &&

  6269.     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"

  6270. 

  6271. enabled vdpau &&

  6272.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6273. 

  6274. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6275. 

  6276. if enabled x86; then

  6277.     case $target_os in

  6278.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6279.             ;;

  6280.         *)

  6281.             disable ffnvcodec cuvid nvdec nvenc

  6282.             ;;

  6283.     esac

  6284. else

  6285.     disable ffnvcodec cuvid nvdec nvenc

  6286. fi

  6287. 

  6288. enabled ffnvcodec && enable cuda

  6289. 

  6290. enabled nvenc &&

  6291.     test_cc -I$source_path <<EOF || disable nvenc

  6292. #include <ffnvcodec/nvEncodeAPI.h>

  6293. NV_ENCODE_API_FUNCTION_LIST flist;

  6294. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6295. int main(void) { return 0; }

  6296. EOF

  6297. 

  6298. enabled amf &&

  6299.     check_cpp_condition amf "AMF/core/Version.h" \

  6300.         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"

  6301. 

  6302. # Funny iconv installations are not unusual, so check it after all flags have been set

  6303. if enabled libc_iconv; then

  6304.     check_func_headers iconv.h iconv

  6305. elif enabled iconv; then

  6306.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6307. fi

  6308. 

  6309. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6310. 

  6311. # add some useful compiler flags if supported

  6312. check_cflags -Wdeclaration-after-statement

  6313. check_cflags -Wall

  6314. check_cflags -Wdisabled-optimization

  6315. check_cflags -Wpointer-arith

  6316. check_cflags -Wredundant-decls

  6317. check_cflags -Wwrite-strings

  6318. check_cflags -Wtype-limits

  6319. check_cflags -Wundef

  6320. check_cflags -Wmissing-prototypes

  6321. check_cflags -Wno-pointer-to-int-cast

  6322. check_cflags -Wstrict-prototypes

  6323. check_cflags -Wempty-body

  6324. 

  6325. if enabled extra_warnings; then

  6326.     check_cflags -Wcast-qual

  6327.     check_cflags -Wextra

  6328.     check_cflags -Wpedantic

  6329. fi

  6330. 

  6331. check_disable_warning(){

  6332.     warning_flag=-W${1#-Wno-}

  6333.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6334. }

  6335. 

  6336. test_cflags -Werror=unused-command-line-argument &&

  6337.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6338. test_cflags -Werror=unknown-warning-option &&

  6339.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6340. 

  6341. check_disable_warning -Wno-parentheses

  6342. check_disable_warning -Wno-switch

  6343. check_disable_warning -Wno-format-zero-length

  6344. check_disable_warning -Wno-pointer-sign

  6345. check_disable_warning -Wno-unused-const-variable

  6346. check_disable_warning -Wno-bool-operation

  6347. 

  6348. check_disable_warning_headers(){

  6349.     warning_flag=-W${1#-Wno-}

  6350.     test_cflags $warning_flag && add_cflags_headers $1

  6351. }

  6352. 

  6353. check_disable_warning_headers -Wno-deprecated-declarations

  6354. check_disable_warning_headers -Wno-unused-variable

  6355. 

  6356. test_cc <<EOF && enable blocks_extension

  6357. void (^block)(void);

  6358. EOF

  6359. 

  6360. # add some linker flags

  6361. check_ldflags -Wl,--warn-common

  6362. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6363. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6364. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6365. 

  6366. # add some strip flags

  6367. check_stripflags -x

  6368. 

  6369. enabled neon_clobber_test &&

  6370.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6371.                   -Wl,--wrap,avcodec_decode_audio4      \

  6372.                   -Wl,--wrap,avcodec_decode_video2      \

  6373.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6374.                   -Wl,--wrap,avcodec_encode_audio2      \

  6375.                   -Wl,--wrap,avcodec_encode_video2      \

  6376.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6377.                   -Wl,--wrap,avcodec_send_packet        \

  6378.                   -Wl,--wrap,avcodec_receive_packet     \

  6379.                   -Wl,--wrap,avcodec_send_frame         \

  6380.                   -Wl,--wrap,avcodec_receive_frame      \

  6381.                   -Wl,--wrap,swr_convert                \

  6382.                   -Wl,--wrap,avresample_convert ||

  6383.     disable neon_clobber_test

  6384. 

  6385. enabled xmm_clobber_test &&

  6386.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6387.                   -Wl,--wrap,avcodec_decode_audio4      \

  6388.                   -Wl,--wrap,avcodec_decode_video2      \

  6389.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6390.                   -Wl,--wrap,avcodec_encode_audio2      \

  6391.                   -Wl,--wrap,avcodec_encode_video2      \

  6392.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6393.                   -Wl,--wrap,avcodec_send_packet        \

  6394.                   -Wl,--wrap,avcodec_receive_packet     \

  6395.                   -Wl,--wrap,avcodec_send_frame         \

  6396.                   -Wl,--wrap,avcodec_receive_frame      \

  6397.                   -Wl,--wrap,swr_convert                \

  6398.                   -Wl,--wrap,avresample_convert         \

  6399.                   -Wl,--wrap,sws_scale ||

  6400.     disable xmm_clobber_test

  6401. 

  6402. test_ld "cc" <<EOF && enable proper_dce

  6403. extern const int array[512];

  6404. static inline int func(void) { return array[0]; }

  6405. int main(void) { return 0; }

  6406. EOF

  6407. 

  6408. if enabled proper_dce; then

  6409.     echo "X { local: *; };" > $TMPV

  6410.     if test_ldflags -Wl,${version_script},$TMPV; then

  6411.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6412.         quotes='""'

  6413.         test_cc <<EOF && enable symver_asm_label

  6414. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6415. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6416. EOF

  6417.         test_cc <<EOF && enable symver_gnu_asm

  6418. __asm__(".symver ff_foo,av_foo@VERSION");

  6419. void ff_foo(void) {}

  6420. EOF

  6421.     fi

  6422. fi

  6423. 

  6424. if [ -z "$optflags" ]; then

  6425.     if enabled small; then

  6426.         optflags=$cflags_size

  6427.     elif enabled optimizations; then

  6428.         optflags=$cflags_speed

  6429.     else

  6430.         optflags=$cflags_noopt

  6431.     fi

  6432. fi

  6433. 

  6434. if [ -z "$nvccflags" ]; then

  6435.     nvccflags=$nvccflags_default

  6436. fi

  6437. 

  6438. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6439.     nvccflags="$nvccflags -m64"

  6440. else

  6441.     nvccflags="$nvccflags -m32"

  6442. fi

  6443. 

  6444. check_optflags(){

  6445.     check_cflags "$@"

  6446.     enabled lto && check_ldflags "$@"

  6447. }

  6448. 

  6449. check_optflags $optflags

  6450. check_optflags -fno-math-errno

  6451. check_optflags -fno-signed-zeros

  6452. 

  6453. if enabled lto; then

  6454.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6455.     check_cflags  -flto

  6456.     check_ldflags -flto $cpuflags

  6457.     disable inline_asm_direct_symbol_refs

  6458. fi

  6459. 

  6460. enabled ftrapv && check_cflags -ftrapv

  6461. 

  6462. test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6463. int x;

  6464. EOF

  6465. 

  6466. 

  6467. if enabled icc; then

  6468.     # Just warnings, no remarks

  6469.     check_cflags -w1

  6470.     # -wd: Disable following warnings

  6471.     # 144, 167, 556: -Wno-pointer-sign

  6472.     # 188: enumerated type mixed with another type

  6473.     # 1292: attribute "foo" ignored

  6474.     # 1419: external declaration in primary source file

  6475.     # 10006: ignoring unknown option -fno-signed-zeros

  6476.     # 10148: ignoring unknown option -Wno-parentheses

  6477.     # 10156: ignoring option '-W'; no argument required

  6478.     # 13200: No EMMS instruction before call to function

  6479.     # 13203: No EMMS instruction before return from function

  6480.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6481.     # 11030: Warning unknown option --as-needed

  6482.     # 10156: ignoring option '-export'; no argument required

  6483.     check_ldflags -wd10156,11030

  6484.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6485.     enable ebp_available

  6486.     # The test above does not test linking

  6487.     enabled lto && disable symver_asm_label

  6488.     if enabled x86_32; then

  6489.         icc_version=$($cc -dumpversion)

  6490.         test ${icc_version%%.*} -ge 11 &&

  6491.             check_cflags -falign-stack=maintain-16-byte ||

  6492.             disable aligned_stack

  6493.     fi

  6494. elif enabled gcc; then

  6495.     check_optflags -fno-tree-vectorize

  6496.     check_cflags -Werror=format-security

  6497.     check_cflags -Werror=implicit-function-declaration

  6498.     check_cflags -Werror=missing-prototypes

  6499.     check_cflags -Werror=return-type

  6500.     check_cflags -Werror=vla

  6501.     check_cflags -Wformat

  6502.     check_cflags -fdiagnostics-color=auto

  6503.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6504. elif enabled llvm_gcc; then

  6505.     check_cflags -mllvm -stack-alignment=16

  6506. elif enabled clang; then

  6507.     check_cflags -mllvm -stack-alignment=16

  6508.     check_cflags -mstack-alignment=16

  6509.     check_cflags -Qunused-arguments

  6510.     check_cflags -Werror=implicit-function-declaration

  6511.     check_cflags -Werror=missing-prototypes

  6512.     check_cflags -Werror=return-type

  6513. elif enabled cparser; then

  6514.     add_cflags -Wno-missing-variable-declarations

  6515.     add_cflags -Wno-empty-statement

  6516. elif enabled armcc; then

  6517.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6518.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6519.     # 2523: use of inline assembly is deprecated

  6520.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6521.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6522.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6523.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6524.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6525.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6526. elif enabled pathscale; then

  6527.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6528.     disable inline_asm

  6529. elif enabled_any msvc icl; then

  6530.     enabled x86_32 && disable aligned_stack

  6531.     enabled_all x86_32 debug && add_cflags -Oy-

  6532.     enabled debug && add_ldflags -debug

  6533.     enable pragma_deprecated

  6534.     if enabled icl; then

  6535.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6536.         # (correctly) on icl 13.x.

  6537.         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6538.             add_cflags -Qansi-alias

  6539.         # Some inline asm is not compilable in debug

  6540.         if enabled debug; then

  6541.             disable ebp_available

  6542.             disable ebx_available

  6543.         fi

  6544.     fi

  6545.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6546.     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"

  6547.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6548.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6549.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6550.     # MSVC 2013 and newer can handle it fine.

  6551.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6552.     # happens in config.h.

  6553.     if [ $restrict_keyword != restrict ]; then

  6554.         test_cc <<EOF || add_cflags -FIstdlib.h

  6555. __declspec($restrict_keyword) void *foo(int);

  6556. EOF

  6557.     fi

  6558.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6559.     # Issue has been fixed in MSVC v19.00.24218.

  6560.     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6561.         check_cflags -d2SSAOptimizer-

  6562.     # enable utf-8 source processing on VS2015 U2 and newer

  6563.     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6564.         add_cflags -utf-8

  6565. fi

  6566. 

  6567. for pfx in "" host_; do

  6568.     varname=${pfx%_}cc_type

  6569.     eval "type=\$$varname"

  6570.     if [ "$type" = "msvc" ]; then

  6571.         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6572. static inline int foo(int a) { return a; }

  6573. EOF

  6574.     fi

  6575. done

  6576. 

  6577. case $as_type in

  6578.     clang)

  6579.         add_asflags -Qunused-arguments

  6580.     ;;

  6581. esac

  6582. 

  6583. case $ld_type in

  6584.     clang)

  6585.         check_ldflags -Qunused-arguments

  6586.     ;;

  6587. esac

  6588. 

  6589. enable frame_thread_encoder

  6590. 

  6591. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6592. 

  6593. check_deps $CONFIG_LIST       \

  6594.            $CONFIG_EXTRA      \

  6595.            $HAVE_LIST         \

  6596.            $ALL_COMPONENTS    \

  6597. 

  6598. 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"

  6599. enabled avresample && warn "Building with deprecated library libavresample"

  6600. 

  6601. if test $target_os = "haiku"; then

  6602.     disable memalign

  6603.     disable posix_memalign

  6604. fi

  6605. 

  6606. flatten_extralibs(){

  6607.     unset nested_entries

  6608.     list_name=$1

  6609.     eval list=\$${1}

  6610.     for entry in $list; do

  6611.         entry_copy=$entry

  6612.         resolve entry_copy

  6613.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6614.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6615.         eval $entry="\$flat_entries"

  6616.     done

  6617.     append $list_name "$nested_entries"

  6618. 

  6619.     resolve nested_entries

  6620.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6621.         flatten_extralibs $list_name

  6622.     fi

  6623. }

  6624. 

  6625. flatten_extralibs_wrapper(){

  6626.     list_name=$1

  6627.     flatten_extralibs $list_name

  6628.     unique $list_name

  6629.     resolve $list_name

  6630.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6631.     eval printf \''%s'\' \""\$$list_name"\"

  6632. }

  6633. 

  6634. for linkunit in $LIBRARY_LIST; do

  6635.     unset current_extralibs

  6636.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6637.     for comp in ${components}; do

  6638.         enabled $comp || continue

  6639.         comp_extralibs="${comp}_extralibs"

  6640.         append current_extralibs $comp_extralibs

  6641.     done

  6642.     eval prepend ${linkunit}_extralibs $current_extralibs

  6643. done

  6644. 

  6645. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6646.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6647. done

  6648. 

  6649. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6650. 

  6651. for thread in $THREADS_LIST; do

  6652.     if enabled $thread; then

  6653.         test -n "$thread_type" &&

  6654.             die "ERROR: Only one thread type must be selected." ||

  6655.             thread_type="$thread"

  6656.     fi

  6657. done

  6658. 

  6659. if disabled stdatomic; then

  6660.     if enabled atomics_gcc; then

  6661.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6662.     elif enabled atomics_win32; then

  6663.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6664.     elif enabled atomics_suncc; then

  6665.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6666.     elif enabled pthreads; then

  6667.         add_compat atomics/pthread/stdatomic.o

  6668.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6669.     else

  6670.         enabled threads && die "Threading is enabled, but no atomics are available"

  6671.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6672.     fi

  6673. fi

  6674. 

  6675. # Check if requested libraries were found.

  6676. for lib in $AUTODETECT_LIBS; do

  6677.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6678. done

  6679. 

  6680. enabled zlib && add_cppflags -DZLIB_CONST

  6681. 

  6682. # conditional library dependencies, in linking order

  6683. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6684. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6685. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6686. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6687. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6688. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6689. enabled convolve_filter     && prepend avfilter_deps "avcodec"

  6690. enabled deconvolve_filter   && prepend avfilter_deps "avcodec"

  6691. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6692. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6693. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6694. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6695. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6696. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6697. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6698. enabled pan_filter          && prepend avfilter_deps "swresample"

  6699. enabled pp_filter           && prepend avfilter_deps "postproc"

  6700. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6701. enabled resample_filter && prepend avfilter_deps "avresample"

  6702. enabled sab_filter          && prepend avfilter_deps "swscale"

  6703. enabled scale_filter    && prepend avfilter_deps "swscale"

  6704. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6705. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6706. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6707. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6708. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6709. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6710. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6711. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6712. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6713. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6714. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6715. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6716. 

  6717. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6718. 

  6719. #FIXME

  6720. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6721. 

  6722. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6723. 

  6724. expand_deps(){

  6725.     lib_deps=${1}_deps

  6726.     eval "deps=\$$lib_deps"

  6727.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6728.     unique $lib_deps

  6729. }

  6730. 

  6731. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6732. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6733. 

  6734. map 'expand_deps $v' $LIBRARY_LIST

  6735. 

  6736. if test "$quiet" != "yes"; then

  6737. 

  6738. echo "install prefix            $prefix"

  6739. echo "source path               $source_path"

  6740. echo "C compiler                $cc"

  6741. echo "C library                 $libc_type"

  6742. if test "$host_cc" != "$cc"; then

  6743.     echo "host C compiler           $host_cc"

  6744.     echo "host C library            $host_libc_type"

  6745. fi

  6746. echo "ARCH                      $arch ($cpu)"

  6747. if test "$build_suffix" != ""; then

  6748.     echo "build suffix              $build_suffix"

  6749. fi

  6750. if test "$progs_suffix" != ""; then

  6751.     echo "progs suffix              $progs_suffix"

  6752. fi

  6753. if test "$extra_version" != ""; then

  6754.     echo "version string suffix     $extra_version"

  6755. fi

  6756. echo "big-endian                ${bigendian-no}"

  6757. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6758. if enabled x86; then

  6759.     echo "standalone assembly       ${x86asm-no}"

  6760.     echo "x86 assembler             ${x86asmexe}"

  6761.     echo "MMX enabled               ${mmx-no}"

  6762.     echo "MMXEXT enabled            ${mmxext-no}"

  6763.     echo "3DNow! enabled            ${amd3dnow-no}"

  6764.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6765.     echo "SSE enabled               ${sse-no}"

  6766.     echo "SSSE3 enabled             ${ssse3-no}"

  6767.     echo "AESNI enabled             ${aesni-no}"

  6768.     echo "AVX enabled               ${avx-no}"

  6769.     echo "AVX2 enabled              ${avx2-no}"

  6770.     echo "AVX-512 enabled           ${avx512-no}"

  6771.     echo "XOP enabled               ${xop-no}"

  6772.     echo "FMA3 enabled              ${fma3-no}"

  6773.     echo "FMA4 enabled              ${fma4-no}"

  6774.     echo "i686 features enabled     ${i686-no}"

  6775.     echo "CMOV is fast              ${fast_cmov-no}"

  6776.     echo "EBX available             ${ebx_available-no}"

  6777.     echo "EBP available             ${ebp_available-no}"

  6778. fi

  6779. if enabled aarch64; then

  6780.     echo "NEON enabled              ${neon-no}"

  6781.     echo "VFP enabled               ${vfp-no}"

  6782. fi

  6783. if enabled arm; then

  6784.     echo "ARMv5TE enabled           ${armv5te-no}"

  6785.     echo "ARMv6 enabled             ${armv6-no}"

  6786.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6787.     echo "VFP enabled               ${vfp-no}"

  6788.     echo "NEON enabled              ${neon-no}"

  6789.     echo "THUMB enabled             ${thumb-no}"

  6790. fi

  6791. if enabled mips; then

  6792.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6793.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6794.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6795.     echo "MIPS MSA enabled          ${msa-no}"

  6796.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6797. fi

  6798. if enabled ppc; then

  6799.     echo "AltiVec enabled           ${altivec-no}"

  6800.     echo "VSX enabled               ${vsx-no}"

  6801.     echo "POWER8 enabled            ${power8-no}"

  6802.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6803.     echo "dcbzl available           ${dcbzl-no}"

  6804. fi

  6805. echo "debug symbols             ${debug-no}"

  6806. echo "strip symbols             ${stripping-no}"

  6807. echo "optimize for size         ${small-no}"

  6808. echo "optimizations             ${optimizations-no}"

  6809. echo "static                    ${static-no}"

  6810. echo "shared                    ${shared-no}"

  6811. echo "postprocessing support    ${postproc-no}"

  6812. echo "network support           ${network-no}"

  6813. echo "threading support         ${thread_type-no}"

  6814. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6815. echo "texi2html enabled         ${texi2html-no}"

  6816. echo "perl enabled              ${perl-no}"

  6817. echo "pod2man enabled           ${pod2man-no}"

  6818. echo "makeinfo enabled          ${makeinfo-no}"

  6819. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6820. test -n "$random_seed" &&

  6821.     echo "random seed               ${random_seed}"

  6822. echo

  6823. 

  6824. echo "External libraries:"

  6825. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6826. echo

  6827. 

  6828. echo "External libraries providing hardware acceleration:"

  6829. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6830. echo

  6831. 

  6832. echo "Libraries:"

  6833. print_enabled '' $LIBRARY_LIST | print_in_columns

  6834. echo

  6835. 

  6836. echo "Programs:"

  6837. print_enabled '' $PROGRAM_LIST | print_in_columns

  6838. echo

  6839. 

  6840. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6841.     echo "Enabled ${type}s:"

  6842.     eval list=\$$(toupper $type)_LIST

  6843.     print_enabled '_*' $list | print_in_columns

  6844.     echo

  6845. done

  6846. 

  6847. if test -n "$ignore_tests"; then

  6848.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6849.     echo "Ignored FATE tests:"

  6850.     echo $ignore_tests | print_in_columns

  6851.     echo

  6852. fi

  6853. 

  6854. echo "License: $license"

  6855. 

  6856. fi # test "$quiet" != "yes"

  6857. 

  6858. if test -n "$WARNINGS"; then

  6859.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6860.     enabled fatal_warnings && exit 1

  6861. fi

  6862. 

  6863. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6864. 

  6865. esc(){

  6866.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6867. }

  6868. 

  6869. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6870. 

  6871. enabled stripping || strip="echo skipping strip"

  6872. enabled stripping || striptype=""

  6873. 

  6874. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6875. 

  6876. cat > ffbuild/config.mak <<EOF

  6877. # Automatically generated by configure - do not modify!

  6878. ifndef FFMPEG_CONFIG_MAK

  6879. FFMPEG_CONFIG_MAK=1

  6880. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6881. prefix=$prefix

  6882. LIBDIR=\$(DESTDIR)$libdir

  6883. SHLIBDIR=\$(DESTDIR)$shlibdir

  6884. INCDIR=\$(DESTDIR)$incdir

  6885. BINDIR=\$(DESTDIR)$bindir

  6886. DATADIR=\$(DESTDIR)$datadir

  6887. DOCDIR=\$(DESTDIR)$docdir

  6888. MANDIR=\$(DESTDIR)$mandir

  6889. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6890. INSTALL_NAME_DIR=$install_name_dir

  6891. SRC_PATH=$source_path

  6892. SRC_LINK=$source_link

  6893. ifndef MAIN_MAKEFILE

  6894. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6895. endif

  6896. CC_IDENT=$cc_ident

  6897. ARCH=$arch

  6898. INTRINSICS=$intrinsics

  6899. EXTERN_PREFIX=$extern_prefix

  6900. CC=$cc

  6901. CXX=$cxx

  6902. AS=$as

  6903. OBJCC=$objcc

  6904. LD=$ld

  6905. DEPCC=$dep_cc

  6906. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6907. DEPAS=$as

  6908. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6909. X86ASM=$x86asmexe

  6910. DEPX86ASM=$x86asmexe

  6911. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6912. AR=$ar

  6913. ARFLAGS=$arflags

  6914. AR_O=$ar_o

  6915. AR_CMD=$ar

  6916. NM_CMD=$nm

  6917. RANLIB=$ranlib

  6918. STRIP=$strip

  6919. STRIPTYPE=$striptype

  6920. NVCC=$nvcc

  6921. CP=cp -p

  6922. LN_S=$ln_s

  6923. CPPFLAGS=$CPPFLAGS

  6924. CFLAGS=$CFLAGS

  6925. CXXFLAGS=$CXXFLAGS

  6926. OBJCFLAGS=$OBJCFLAGS

  6927. ASFLAGS=$ASFLAGS

  6928. NVCCFLAGS=$nvccflags

  6929. AS_C=$AS_C

  6930. AS_O=$AS_O

  6931. OBJCC_C=$OBJCC_C

  6932. OBJCC_E=$OBJCC_E

  6933. OBJCC_O=$OBJCC_O

  6934. CC_C=$CC_C

  6935. CC_E=$CC_E

  6936. CC_O=$CC_O

  6937. CXX_C=$CXX_C

  6938. CXX_O=$CXX_O

  6939. NVCC_C=$NVCC_C

  6940. NVCC_O=$NVCC_O

  6941. LD_O=$LD_O

  6942. X86ASM_O=$X86ASM_O

  6943. LD_LIB=$LD_LIB

  6944. LD_PATH=$LD_PATH

  6945. DLLTOOL=$dlltool

  6946. WINDRES=$windres

  6947. DEPWINDRES=$dep_cc

  6948. DOXYGEN=$doxygen

  6949. LDFLAGS=$LDFLAGS

  6950. LDEXEFLAGS=$LDEXEFLAGS

  6951. LDSOFLAGS=$LDSOFLAGS

  6952. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6953. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6954. X86ASMFLAGS=$X86ASMFLAGS

  6955. BUILDSUF=$build_suffix

  6956. PROGSSUF=$progs_suffix

  6957. FULLNAME=$FULLNAME

  6958. LIBPREF=$LIBPREF

  6959. LIBSUF=$LIBSUF

  6960. LIBNAME=$LIBNAME

  6961. SLIBPREF=$SLIBPREF

  6962. SLIBSUF=$SLIBSUF

  6963. EXESUF=$EXESUF

  6964. EXTRA_VERSION=$extra_version

  6965. CCDEP=$CCDEP

  6966. CXXDEP=$CXXDEP

  6967. CCDEP_FLAGS=$CCDEP_FLAGS

  6968. ASDEP=$ASDEP

  6969. ASDEP_FLAGS=$ASDEP_FLAGS

  6970. X86ASMDEP=$X86ASMDEP

  6971. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6972. CC_DEPFLAGS=$CC_DEPFLAGS

  6973. AS_DEPFLAGS=$AS_DEPFLAGS

  6974. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6975. HOSTCC=$host_cc

  6976. HOSTLD=$host_ld

  6977. HOSTCFLAGS=$host_cflags

  6978. HOSTCPPFLAGS=$host_cppflags

  6979. HOSTEXESUF=$HOSTEXESUF

  6980. HOSTLDFLAGS=$host_ldflags

  6981. HOSTEXTRALIBS=$host_extralibs

  6982. DEPHOSTCC=$host_cc

  6983. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6984. HOSTCCDEP=$HOSTCCDEP

  6985. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6986. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6987. HOSTCC_C=$HOSTCC_C

  6988. HOSTCC_O=$HOSTCC_O

  6989. HOSTLD_O=$HOSTLD_O

  6990. TARGET_EXEC=$target_exec $target_exec_args

  6991. TARGET_PATH=$target_path

  6992. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6993. CFLAGS-ffplay=${sdl2_cflags}

  6994. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6995. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6996. EXTRALIBS=$extralibs

  6997. COMPAT_OBJS=$compat_objs

  6998. INSTALL=$install

  6999. LIBTARGET=${LIBTARGET}

  7000. SLIBNAME=${SLIBNAME}

  7001. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  7002. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  7003. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  7004. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  7005. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  7006. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  7007. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  7008. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  7009. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  7010. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  7011. NOREDZONE_FLAGS=$noredzone_flags

  7012. LIBFUZZER_PATH=$libfuzzer_path

  7013. IGNORE_TESTS=$ignore_tests

  7014. EOF

  7015. 

  7016. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  7017. 

  7018. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  7019.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  7020. done

  7021. 

  7022. cat > $TMPH <<EOF

  7023. /* Automatically generated by configure - do not modify! */

  7024. #ifndef FFMPEG_CONFIG_H

  7025. #define FFMPEG_CONFIG_H

  7026. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  7027. #define FFMPEG_LICENSE "$(c_escape $license)"

  7028. #define CONFIG_THIS_YEAR 2018

  7029. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  7030. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  7031. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  7032. #define av_restrict $restrict_keyword

  7033. #define EXTERN_PREFIX "${extern_prefix}"

  7034. #define EXTERN_ASM ${extern_prefix}

  7035. #define BUILDSUF "$build_suffix"

  7036. #define SLIBSUF "$SLIBSUF"

  7037. #define HAVE_MMX2 HAVE_MMXEXT

  7038. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  7039. EOF

  7040. 

  7041. test -n "$assert_level" &&

  7042.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  7043. 

  7044. test -n "$malloc_prefix" &&

  7045.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  7046. 

  7047. if enabled x86asm; then

  7048.     append config_files $TMPASM

  7049.     cat > $TMPASM <<EOF

  7050. ; Automatically generated by configure - do not modify!

  7051. EOF

  7052. fi

  7053. 

  7054. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  7055. 

  7056. 

  7057. mkdir -p doc

  7058. mkdir -p tests

  7059. mkdir -p tests/api

  7060. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  7061. 

  7062. print_config ARCH_   "$config_files" $ARCH_LIST

  7063. print_config HAVE_   "$config_files" $HAVE_LIST

  7064. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  7065.                                      $CONFIG_EXTRA      \

  7066.                                      $ALL_COMPONENTS    \

  7067. 

  7068. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  7069. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  7070. 

  7071. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  7072. cp_if_changed $TMPH config.h

  7073. touch ffbuild/.config

  7074. 

  7075. enabled x86asm && cp_if_changed $TMPASM config.asm

  7076. 

  7077. cat > $TMPH <<EOF

  7078. /* Generated by ffmpeg configure */

  7079. #ifndef AVUTIL_AVCONFIG_H

  7080. #define AVUTIL_AVCONFIG_H

  7081. EOF

  7082. 

  7083. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7084. 

  7085. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7086. 

  7087. cp_if_changed $TMPH libavutil/avconfig.h

  7088. 

  7089. # generate the lists of enabled components

  7090. print_enabled_components(){

  7091.     file=$1

  7092.     struct_name=$2

  7093.     name=$3

  7094.     shift 3

  7095.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7096.     for c in $*; do

  7097.         if enabled $c; then

  7098.             case $name in

  7099.                 indev_list)

  7100.                     c=$(add_suffix _demuxer $(remove_suffix _indev $c))

  7101.                 ;;

  7102.                 outdev_list)

  7103.                     c=$(add_suffix _muxer $(remove_suffix _outdev $c))

  7104.                 ;;

  7105.             esac

  7106.             printf "    &ff_%s,\n" $c >> $TMPH

  7107.         fi

  7108.     done

  7109.     echo "    NULL };" >> $TMPH

  7110.     cp_if_changed $TMPH $file

  7111. }

  7112. 

  7113. print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST

  7114. print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST

  7115. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7116. print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST

  7117. print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST

  7118. print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST

  7119. print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST

  7120. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7121. 

  7122. # Settings for pkg-config files

  7123. 

  7124. cat > $TMPH <<EOF

  7125. # Automatically generated by configure - do not modify!

  7126. shared=$shared

  7127. build_suffix=$build_suffix

  7128. prefix=$prefix

  7129. libdir=$libdir

  7130. incdir=$incdir

  7131. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7132. source_path=${source_path}

  7133. LIBPREF=${LIBPREF}

  7134. LIBSUF=${LIBSUF}

  7135. extralibs_avutil="$avutil_extralibs"

  7136. extralibs_avcodec="$avcodec_extralibs"

  7137. extralibs_avformat="$avformat_extralibs"

  7138. extralibs_avdevice="$avdevice_extralibs"

  7139. extralibs_avfilter="$avfilter_extralibs"

  7140. extralibs_avresample="$avresample_extralibs"

  7141. extralibs_postproc="$postproc_extralibs"

  7142. extralibs_swscale="$swscale_extralibs"

  7143. extralibs_swresample="$swresample_extralibs"

  7144. EOF

  7145. 

  7146. for lib in $LIBRARY_LIST; do

  7147.     lib_deps="$(eval echo \$${lib}_deps)"

  7148.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7149. done

  7150. 

  7151. cp_if_changed $TMPH ffbuild/config.sh